Greg Kroah-Hartman | 5fd54ac | 2017-11-03 11:28:30 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Edgeport USB Serial Converter driver |
| 4 | * |
| 5 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. |
| 6 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> |
| 7 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * Supports the following devices: |
| 9 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT |
| 10 | * |
| 11 | * For questions or problems with this driver, contact Inside Out |
| 12 | * Networks technical support, or Peter Berger <pberger@brimson.com>, |
| 13 | * or Al Borchers <alborchers@steinerpoint.com>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | */ |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/kernel.h> |
| 17 | #include <linux/jiffies.h> |
| 18 | #include <linux/errno.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/slab.h> |
| 20 | #include <linux/tty.h> |
| 21 | #include <linux/tty_driver.h> |
| 22 | #include <linux/tty_flip.h> |
| 23 | #include <linux/module.h> |
| 24 | #include <linux/spinlock.h> |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 25 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/serial.h> |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 27 | #include <linux/swab.h> |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 28 | #include <linux/kfifo.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/ioctl.h> |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 30 | #include <linux/firmware.h> |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 31 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 33 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include "io_16654.h" |
| 36 | #include "io_usbvend.h" |
| 37 | #include "io_ti.h" |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
| 40 | #define DRIVER_DESC "Edgeport USB Serial Driver" |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #define EPROM_PAGE_SIZE 64 |
| 43 | |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | /* different hardware types */ |
| 46 | #define HARDWARE_TYPE_930 0 |
| 47 | #define HARDWARE_TYPE_TIUMP 1 |
| 48 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 49 | /* IOCTL_PRIVATE_TI_GET_MODE Definitions */ |
| 50 | #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */ |
| 51 | #define TI_MODE_BOOT 1 /* Staying in boot mode */ |
| 52 | #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */ |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 53 | #define TI_MODE_TRANSITIONING 3 /* |
| 54 | * Currently in boot mode but |
| 55 | * transitioning to download mode |
| 56 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | /* read urb state */ |
| 59 | #define EDGE_READ_URB_RUNNING 0 |
| 60 | #define EDGE_READ_URB_STOPPING 1 |
| 61 | #define EDGE_READ_URB_STOPPED 2 |
| 62 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
| 66 | /* Product information read from the Edgeport */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 67 | struct product_info { |
| 68 | int TiMode; /* Current TI Mode */ |
| 69 | __u8 hardware_type; /* Type of hardware */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | } __attribute__((packed)); |
| 71 | |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 72 | /* |
| 73 | * Edgeport firmware header |
| 74 | * |
| 75 | * "build_number" has been set to 0 in all three of the images I have |
| 76 | * seen, and Digi Tech Support suggests that it is safe to ignore it. |
| 77 | * |
| 78 | * "length" is the number of bytes of actual data following the header. |
| 79 | * |
| 80 | * "checksum" is the low order byte resulting from adding the values of |
| 81 | * all the data bytes. |
| 82 | */ |
| 83 | struct edgeport_fw_hdr { |
| 84 | u8 major_version; |
| 85 | u8 minor_version; |
| 86 | __le16 build_number; |
| 87 | __le16 length; |
| 88 | u8 checksum; |
| 89 | } __packed; |
| 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | struct edgeport_port { |
| 92 | __u16 uart_base; |
| 93 | __u16 dma_address; |
| 94 | __u8 shadow_msr; |
| 95 | __u8 shadow_mcr; |
| 96 | __u8 shadow_lsr; |
| 97 | __u8 lsr_mask; |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 98 | __u32 ump_read_timeout; /* |
| 99 | * Number of milliseconds the UMP will |
| 100 | * wait without data before completing |
| 101 | * a read short |
| 102 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | int baud_rate; |
| 104 | int close_pending; |
| 105 | int lsr_event; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | struct edgeport_serial *edge_serial; |
| 108 | struct usb_serial_port *port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 109 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | spinlock_t ep_lock; |
| 111 | int ep_read_urb_state; |
| 112 | int ep_write_urb_in_use; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | }; |
| 114 | |
| 115 | struct edgeport_serial { |
| 116 | struct product_info product_info; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 117 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 118 | u8 TiReadI2C; /* |
| 119 | * Set to TRUE if we have read the |
| 120 | * I2c in Boot Mode |
| 121 | */ |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 122 | struct mutex es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | int num_ports_open; |
| 124 | struct usb_serial *serial; |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 125 | struct delayed_work heartbeat_work; |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 126 | int fw_version; |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 127 | bool use_heartbeat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | }; |
| 129 | |
| 130 | |
| 131 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 132 | static const struct usb_device_id edgeport_1port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 134 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 135 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 136 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 141 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 149 | { } |
| 150 | }; |
| 151 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 152 | static const struct usb_device_id edgeport_2port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 154 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 155 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 165 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | { } |
| 172 | }; |
| 173 | |
| 174 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 175 | static const struct usb_device_id id_table_combined[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 185 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 186 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 188 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 189 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 190 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 191 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 192 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 193 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 194 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 195 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 196 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 197 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 198 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 199 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 200 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 201 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 202 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 203 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, |
| 204 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 205 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 206 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 207 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 208 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | { } |
| 210 | }; |
| 211 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 212 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | static int closing_wait = EDGE_CLOSING_WAIT; |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 215 | static bool ignore_cpu_rev; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 216 | static int default_uart_mode; /* RS232 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 218 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 219 | int length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | static void stop_read(struct edgeport_port *edge_port); |
| 222 | static int restart_read(struct edgeport_port *edge_port); |
| 223 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 224 | static void edge_set_termios(struct tty_struct *tty, |
| 225 | struct usb_serial_port *port, struct ktermios *old_termios); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 226 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 228 | static int do_download_mode(struct edgeport_serial *serial, |
| 229 | const struct firmware *fw); |
| 230 | static int do_boot_mode(struct edgeport_serial *serial, |
| 231 | const struct firmware *fw); |
| 232 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 233 | /* sysfs attributes */ |
| 234 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); |
| 235 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); |
| 236 | |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 237 | /* |
| 238 | * Some release of Edgeport firmware "down3.bin" after version 4.80 |
| 239 | * introduced code to automatically disconnect idle devices on some |
| 240 | * Edgeport models after periods of inactivity, typically ~60 seconds. |
| 241 | * This occurs without regard to whether ports on the device are open |
| 242 | * or not. Digi International Tech Support suggested: |
| 243 | * |
| 244 | * 1. Adding driver "heartbeat" code to reset the firmware timer by |
| 245 | * requesting a descriptor record every 15 seconds, which should be |
| 246 | * effective with newer firmware versions that require it, and benign |
| 247 | * with older versions that do not. In practice 40 seconds seems often |
| 248 | * enough. |
| 249 | * 2. The heartbeat code is currently required only on Edgeport/416 models. |
| 250 | */ |
| 251 | #define FW_HEARTBEAT_VERSION_CUTOFF ((4 << 8) + 80) |
| 252 | #define FW_HEARTBEAT_SECS 40 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 254 | /* Timeouts in msecs: firmware downloads take longer */ |
| 255 | #define TI_VSEND_TIMEOUT_DEFAULT 1000 |
| 256 | #define TI_VSEND_TIMEOUT_FW_DOWNLOAD 10000 |
| 257 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 258 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
| 259 | __u16 value, __u16 index, u8 *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | { |
| 261 | int status; |
| 262 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 263 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
| 264 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
| 265 | value, index, data, size, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | if (status < 0) |
| 267 | return status; |
| 268 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 269 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 270 | __func__, size, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 271 | return -ECOMM; |
| 272 | } |
| 273 | return 0; |
| 274 | } |
| 275 | |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 276 | static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value, |
| 277 | u16 index, u8 *data, int size, int timeout) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 278 | { |
| 279 | int status; |
| 280 | |
| 281 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
| 282 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 283 | value, index, data, size, timeout); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 284 | if (status < 0) |
| 285 | return status; |
| 286 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 287 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 288 | __func__, size, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | return -ECOMM; |
| 290 | } |
| 291 | return 0; |
| 292 | } |
| 293 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 294 | static int send_cmd(struct usb_device *dev, __u8 command, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | __u8 moduleid, __u16 value, u8 *data, |
| 296 | int size) |
| 297 | { |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 298 | return ti_vsend_sync(dev, command, value, moduleid, data, size, |
| 299 | TI_VSEND_TIMEOUT_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | /* clear tx/rx buffers and fifo in TI UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 303 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | { |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 305 | int port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 307 | dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 309 | return send_cmd(port->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | UMPC_PURGE_PORT, |
| 311 | (__u8)(UMPM_UART1_PORT + port_number), |
| 312 | mask, |
| 313 | NULL, |
| 314 | 0); |
| 315 | } |
| 316 | |
| 317 | /** |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 318 | * read_download_mem - Read edgeport memory from TI chip |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | * @dev: usb device pointer |
| 320 | * @start_address: Device CPU address at which to read |
| 321 | * @length: Length of above data |
| 322 | * @address_type: Can read both XDATA and I2C |
| 323 | * @buffer: pointer to input data buffer |
| 324 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 325 | static int read_download_mem(struct usb_device *dev, int start_address, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | int length, __u8 address_type, __u8 *buffer) |
| 327 | { |
| 328 | int status = 0; |
| 329 | __u8 read_length; |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 330 | u16 be_start_address; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 331 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 332 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 334 | /* |
| 335 | * Read in blocks of 64 bytes |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | * (TI firmware can't handle more than 64 byte reads) |
| 337 | */ |
| 338 | while (length) { |
| 339 | if (length > 64) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 340 | read_length = 64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | else |
| 342 | read_length = (__u8)length; |
| 343 | |
| 344 | if (read_length > 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 345 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | } |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 347 | /* |
| 348 | * NOTE: Must use swab as wIndex is sent in little-endian |
| 349 | * byte order regardless of host byte order. |
| 350 | */ |
| 351 | be_start_address = swab16((u16)start_address); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 352 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, |
| 353 | (__u16)address_type, |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 354 | be_start_address, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 355 | buffer, read_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
| 357 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 358 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | return status; |
| 360 | } |
| 361 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 362 | if (read_length > 1) |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 363 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| 365 | /* Update pointers/length */ |
| 366 | start_address += read_length; |
| 367 | buffer += read_length; |
| 368 | length -= read_length; |
| 369 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | return status; |
| 372 | } |
| 373 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 374 | static int read_ram(struct usb_device *dev, int start_address, |
| 375 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 377 | return read_download_mem(dev, start_address, length, |
| 378 | DTK_ADDR_SPACE_XDATA, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
| 381 | /* Read edgeport memory to a given block */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 382 | static int read_boot_mem(struct edgeport_serial *serial, |
| 383 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | { |
| 385 | int status = 0; |
| 386 | int i; |
| 387 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 388 | for (i = 0; i < length; i++) { |
| 389 | status = ti_vread_sync(serial->serial->dev, |
| 390 | UMPC_MEMORY_READ, serial->TI_I2C_Type, |
| 391 | (__u16)(start_address+i), &buffer[i], 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 393 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | return status; |
| 395 | } |
| 396 | } |
| 397 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 398 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
| 399 | __func__, start_address, length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 400 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | serial->TiReadI2C = 1; |
| 403 | |
| 404 | return status; |
| 405 | } |
| 406 | |
| 407 | /* Write given block to TI EPROM memory */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 408 | static int write_boot_mem(struct edgeport_serial *serial, |
| 409 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | { |
| 411 | int status = 0; |
| 412 | int i; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 413 | u8 *temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
| 415 | /* Must do a read before write */ |
| 416 | if (!serial->TiReadI2C) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 417 | temp = kmalloc(1, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 418 | if (!temp) |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 419 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 420 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 421 | status = read_boot_mem(serial, 0, 1, temp); |
| 422 | kfree(temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | if (status) |
| 424 | return status; |
| 425 | } |
| 426 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 427 | for (i = 0; i < length; ++i) { |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 428 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
| 429 | buffer[i], (u16)(i + start_address), NULL, |
| 430 | 0, TI_VSEND_TIMEOUT_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | if (status) |
| 432 | return status; |
| 433 | } |
| 434 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 435 | dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 436 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | |
| 438 | return status; |
| 439 | } |
| 440 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | /* Write edgeport I2C memory to TI chip */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 442 | static int write_i2c_mem(struct edgeport_serial *serial, |
| 443 | int start_address, int length, __u8 address_type, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 445 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | int status = 0; |
| 447 | int write_length; |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 448 | u16 be_start_address; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
| 450 | /* We can only send a maximum of 1 aligned byte page at a time */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 451 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 452 | /* calculate the number of bytes left in the first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 453 | write_length = EPROM_PAGE_SIZE - |
| 454 | (start_address & (EPROM_PAGE_SIZE - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | |
| 456 | if (write_length > length) |
| 457 | write_length = length; |
| 458 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 459 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
| 460 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 461 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 463 | /* |
| 464 | * Write first page. |
| 465 | * |
| 466 | * NOTE: Must use swab as wIndex is sent in little-endian byte order |
| 467 | * regardless of host byte order. |
| 468 | */ |
| 469 | be_start_address = swab16((u16)start_address); |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 470 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
| 471 | (u16)address_type, be_start_address, |
| 472 | buffer, write_length, TI_VSEND_TIMEOUT_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 474 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | return status; |
| 476 | } |
| 477 | |
| 478 | length -= write_length; |
| 479 | start_address += write_length; |
| 480 | buffer += write_length; |
| 481 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 482 | /* |
| 483 | * We should be aligned now -- can write max page size bytes at a |
| 484 | * time. |
| 485 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | while (length) { |
| 487 | if (length > EPROM_PAGE_SIZE) |
| 488 | write_length = EPROM_PAGE_SIZE; |
| 489 | else |
| 490 | write_length = length; |
| 491 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 492 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
| 493 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 494 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 496 | /* |
| 497 | * Write next page. |
| 498 | * |
| 499 | * NOTE: Must use swab as wIndex is sent in little-endian byte |
| 500 | * order regardless of host byte order. |
| 501 | */ |
| 502 | be_start_address = swab16((u16)start_address); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 503 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 504 | (u16)address_type, be_start_address, buffer, |
| 505 | write_length, TI_VSEND_TIMEOUT_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 507 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | return status; |
| 509 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 510 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | length -= write_length; |
| 512 | start_address += write_length; |
| 513 | buffer += write_length; |
| 514 | } |
| 515 | return status; |
| 516 | } |
| 517 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 518 | /* |
| 519 | * Examine the UMP DMA registers and LSR |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 520 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | * Check the MSBit of the X and Y DMA byte count registers. |
| 522 | * A zero in this bit indicates that the TX DMA buffers are empty |
| 523 | * then check the TX Empty bit in the UART. |
| 524 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 525 | static int tx_active(struct edgeport_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | { |
| 527 | int status; |
| 528 | struct out_endpoint_desc_block *oedb; |
| 529 | __u8 *lsr; |
| 530 | int bytes_left = 0; |
| 531 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 532 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 533 | if (!oedb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 536 | /* |
| 537 | * Sigh, that's right, just one byte, as not all platforms can |
| 538 | * do DMA from stack |
| 539 | */ |
| 540 | lsr = kmalloc(1, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | if (!lsr) { |
| 542 | kfree(oedb); |
| 543 | return -ENOMEM; |
| 544 | } |
| 545 | /* Read the DMA Count Registers */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 546 | status = read_ram(port->port->serial->dev, port->dma_address, |
| 547 | sizeof(*oedb), (void *)oedb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | if (status) |
| 549 | goto exit_is_tx_active; |
| 550 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 551 | dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | |
| 553 | /* and the LSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 554 | status = read_ram(port->port->serial->dev, |
| 555 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
| 557 | if (status) |
| 558 | goto exit_is_tx_active; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 559 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 560 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | /* If either buffer has data or we are transmitting then return TRUE */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 562 | if ((oedb->XByteCount & 0x80) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | bytes_left += 64; |
| 564 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 565 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | bytes_left += 1; |
| 567 | |
| 568 | /* We return Not Active if we get any kind of error */ |
| 569 | exit_is_tx_active: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 570 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | |
| 572 | kfree(lsr); |
| 573 | kfree(oedb); |
| 574 | return bytes_left; |
| 575 | } |
| 576 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 577 | static int choose_config(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 579 | /* |
| 580 | * There may be multiple configurations on this device, in which case |
| 581 | * we would need to read and parse all of them to find out which one |
| 582 | * we want. However, we just support one config at this point, |
| 583 | * configuration # 1, which is Config Descriptor 0. |
| 584 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 586 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
| 587 | __func__, dev->config->desc.bNumInterfaces); |
| 588 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", |
| 589 | __func__, dev->config->desc.bMaxPower * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | |
| 591 | if (dev->config->desc.bNumInterfaces != 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 592 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | return -ENODEV; |
| 594 | } |
| 595 | |
| 596 | return 0; |
| 597 | } |
| 598 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 599 | static int read_rom(struct edgeport_serial *serial, |
| 600 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | { |
| 602 | int status; |
| 603 | |
| 604 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 605 | status = read_download_mem(serial->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | start_address, |
| 607 | length, |
| 608 | serial->TI_I2C_Type, |
| 609 | buffer); |
| 610 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 611 | status = read_boot_mem(serial, start_address, length, |
| 612 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | return status; |
| 615 | } |
| 616 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 617 | static int write_rom(struct edgeport_serial *serial, int start_address, |
| 618 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | { |
| 620 | if (serial->product_info.TiMode == TI_MODE_BOOT) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 621 | return write_boot_mem(serial, start_address, length, |
| 622 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | |
| 624 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 625 | return write_i2c_mem(serial, start_address, length, |
| 626 | serial->TI_I2C_Type, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | return -EINVAL; |
| 628 | } |
| 629 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | /* Read a descriptor header from I2C based on type */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 631 | static int get_descriptor_addr(struct edgeport_serial *serial, |
| 632 | int desc_type, struct ti_i2c_desc *rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | { |
| 634 | int start_address; |
| 635 | int status; |
| 636 | |
| 637 | /* Search for requested descriptor in I2C */ |
| 638 | start_address = 2; |
| 639 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 640 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | start_address, |
| 642 | sizeof(struct ti_i2c_desc), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 643 | (__u8 *)rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | if (status) |
| 645 | return 0; |
| 646 | |
| 647 | if (rom_desc->Type == desc_type) |
| 648 | return start_address; |
| 649 | |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 650 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
| 651 | le16_to_cpu(rom_desc->Size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | |
| 653 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 654 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | return 0; |
| 656 | } |
| 657 | |
| 658 | /* Validate descriptor checksum */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 659 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | { |
| 661 | __u16 i; |
| 662 | __u8 cs = 0; |
| 663 | |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 664 | for (i = 0; i < le16_to_cpu(rom_desc->Size); i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | cs = (__u8)(cs + buffer[i]); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 666 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | if (cs != rom_desc->CheckSum) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 668 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | return -EINVAL; |
| 670 | } |
| 671 | return 0; |
| 672 | } |
| 673 | |
| 674 | /* Make sure that the I2C image is good */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 675 | static int check_i2c_image(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | { |
| 677 | struct device *dev = &serial->serial->dev->dev; |
| 678 | int status = 0; |
| 679 | struct ti_i2c_desc *rom_desc; |
| 680 | int start_address = 2; |
| 681 | __u8 *buffer; |
| 682 | __u16 ttype; |
| 683 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 684 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 685 | if (!rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 687 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 688 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 690 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | return -ENOMEM; |
| 692 | } |
| 693 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 694 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
| 695 | status = read_rom(serial, 0, 1, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 697 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
| 699 | if (*buffer != UMP5152 && *buffer != UMP3410) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 700 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | status = -ENODEV; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 702 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 706 | /* Validate the I2C */ |
| 707 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | start_address, |
| 709 | sizeof(struct ti_i2c_desc), |
| 710 | (__u8 *)rom_desc); |
| 711 | if (status) |
| 712 | break; |
| 713 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 714 | if ((start_address + sizeof(struct ti_i2c_desc) + |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 715 | le16_to_cpu(rom_desc->Size)) > TI_MAX_I2C_SIZE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | status = -ENODEV; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 717 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | break; |
| 719 | } |
| 720 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 721 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 723 | /* Skip type 2 record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | ttype = rom_desc->Type & 0x0f; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 725 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
| 726 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { |
| 727 | /* Read the descriptor data */ |
| 728 | status = read_rom(serial, start_address + |
| 729 | sizeof(struct ti_i2c_desc), |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 730 | le16_to_cpu(rom_desc->Size), |
| 731 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | if (status) |
| 733 | break; |
| 734 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 735 | status = valid_csum(rom_desc, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | if (status) |
| 737 | break; |
| 738 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 739 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 740 | le16_to_cpu(rom_desc->Size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 742 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
| 743 | (start_address < TI_MAX_I2C_SIZE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 745 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
| 746 | (start_address > TI_MAX_I2C_SIZE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | status = -ENODEV; |
| 748 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 749 | out: |
| 750 | kfree(buffer); |
| 751 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | return status; |
| 753 | } |
| 754 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 755 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | { |
| 757 | int status; |
| 758 | int start_address; |
| 759 | struct ti_i2c_desc *rom_desc; |
| 760 | struct edge_ti_manuf_descriptor *desc; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 761 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 763 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 764 | if (!rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 766 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 767 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
| 768 | rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | |
| 770 | if (!start_address) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 771 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | status = -ENODEV; |
| 773 | goto exit; |
| 774 | } |
| 775 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 776 | /* Read the descriptor data */ |
| 777 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), |
Johan Hovold | 5509076 | 2014-04-25 15:23:03 +0200 | [diff] [blame] | 778 | le16_to_cpu(rom_desc->Size), buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | if (status) |
| 780 | goto exit; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 781 | |
| 782 | status = valid_csum(rom_desc, buffer); |
| 783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 785 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
| 786 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); |
| 787 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); |
| 788 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); |
| 789 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); |
| 790 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
| 792 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 793 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | return status; |
| 795 | } |
| 796 | |
| 797 | /* Build firmware header used for firmware update */ |
Peter E. Berger | 277bf37 | 2015-09-16 03:12:58 -0500 | [diff] [blame] | 798 | static int build_i2c_fw_hdr(u8 *header, const struct firmware *fw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | { |
| 800 | __u8 *buffer; |
| 801 | int buffer_size; |
| 802 | int i; |
| 803 | __u8 cs = 0; |
| 804 | struct ti_i2c_desc *i2c_header; |
| 805 | struct ti_i2c_image_header *img_header; |
| 806 | struct ti_i2c_firmware_rec *firmware_rec; |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 807 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 809 | /* |
| 810 | * In order to update the I2C firmware we must change the type 2 record |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 811 | * to type 0xF2. This will force the UMP to come up in Boot Mode. |
| 812 | * Then while in boot mode, the driver will download the latest |
| 813 | * firmware (padded to 15.5k) into the UMP ram. And finally when the |
| 814 | * device comes back up in download mode the driver will cause the new |
| 815 | * firmware to be copied from the UMP Ram to I2C and the firmware will |
| 816 | * update the record type from 0xf2 to 0x02. |
| 817 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 819 | /* |
| 820 | * Allocate a 15.5k buffer + 2 bytes for version number (Firmware |
| 821 | * Record) |
| 822 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 823 | buffer_size = (((1024 * 16) - 512 ) + |
| 824 | sizeof(struct ti_i2c_firmware_rec)); |
| 825 | |
| 826 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 827 | if (!buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 829 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 830 | /* Set entire image of 0xffs */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 831 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 833 | /* Copy version number into firmware record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
| 835 | |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 836 | firmware_rec->Ver_Major = fw_hdr->major_version; |
| 837 | firmware_rec->Ver_Minor = fw_hdr->minor_version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 839 | /* Pointer to fw_down memory image */ |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 840 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 842 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 843 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | le16_to_cpu(img_header->Length)); |
| 845 | |
| 846 | for (i=0; i < buffer_size; i++) { |
| 847 | cs = (__u8)(cs + buffer[i]); |
| 848 | } |
| 849 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 850 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 852 | /* Build new header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | i2c_header = (struct ti_i2c_desc *)header; |
| 854 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 855 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
Johan Hovold | c03890f | 2014-04-26 11:53:44 +0200 | [diff] [blame] | 857 | i2c_header->Size = cpu_to_le16(buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | i2c_header->CheckSum = cs; |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 859 | firmware_rec->Ver_Major = fw_hdr->major_version; |
| 860 | firmware_rec->Ver_Minor = fw_hdr->minor_version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | |
| 862 | return 0; |
| 863 | } |
| 864 | |
| 865 | /* Try to figure out what type of I2c we have */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 866 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 868 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | int status; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 870 | u8 *data; |
| 871 | |
| 872 | data = kmalloc(1, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 873 | if (!data) |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 874 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 875 | |
| 876 | /* Try to read type 2 */ |
| 877 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 878 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 880 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 882 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 883 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 884 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 886 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | } |
| 888 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 889 | /* Try to read type 3 */ |
| 890 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 891 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 893 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 895 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 896 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 897 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 899 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | } |
| 901 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 902 | dev_dbg(dev, "%s - Unknown\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 904 | status = -ENODEV; |
| 905 | out: |
| 906 | kfree(data); |
| 907 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | } |
| 909 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 910 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
| 911 | int length, int *num_sent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | { |
| 913 | int status; |
| 914 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 915 | status = usb_bulk_msg(serial->dev, |
| 916 | usb_sndbulkpipe(serial->dev, |
| 917 | serial->port[0]->bulk_out_endpointAddress), |
| 918 | buffer, length, num_sent, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | return status; |
| 920 | } |
| 921 | |
| 922 | /* Download given firmware image to the device (IN BOOT MODE) */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 923 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
| 924 | int image_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | { |
| 926 | int status = 0; |
| 927 | int pos; |
| 928 | int transfer; |
| 929 | int done; |
| 930 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 931 | /* Transfer firmware image */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | for (pos = 0; pos < image_length; ) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 933 | /* Read the next buffer from file */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | transfer = image_length - pos; |
| 935 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) |
| 936 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; |
| 937 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 938 | /* Transfer data */ |
| 939 | status = bulk_xfer(serial->serial, &image[pos], |
| 940 | transfer, &done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | if (status) |
| 942 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 943 | /* Advance buffer pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | pos += done; |
| 945 | } |
| 946 | |
| 947 | return status; |
| 948 | } |
| 949 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 950 | /* FIXME!!! */ |
| 951 | static int config_boot_dev(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | { |
| 953 | return 0; |
| 954 | } |
| 955 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 956 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
| 957 | { |
| 958 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); |
| 959 | } |
| 960 | |
Peter E. Berger | dcb8e99 | 2015-07-31 01:55:07 -0500 | [diff] [blame] | 961 | static int check_fw_sanity(struct edgeport_serial *serial, |
| 962 | const struct firmware *fw) |
| 963 | { |
| 964 | u16 length_total; |
| 965 | u8 checksum = 0; |
| 966 | int pos; |
| 967 | struct device *dev = &serial->serial->interface->dev; |
| 968 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
| 969 | |
| 970 | if (fw->size < sizeof(struct edgeport_fw_hdr)) { |
| 971 | dev_err(dev, "incomplete fw header\n"); |
| 972 | return -EINVAL; |
| 973 | } |
| 974 | |
| 975 | length_total = le16_to_cpu(fw_hdr->length) + |
| 976 | sizeof(struct edgeport_fw_hdr); |
| 977 | |
| 978 | if (fw->size != length_total) { |
| 979 | dev_err(dev, "bad fw size (expected: %u, got: %zu)\n", |
| 980 | length_total, fw->size); |
| 981 | return -EINVAL; |
| 982 | } |
| 983 | |
| 984 | for (pos = sizeof(struct edgeport_fw_hdr); pos < fw->size; ++pos) |
| 985 | checksum += fw->data[pos]; |
| 986 | |
| 987 | if (checksum != fw_hdr->checksum) { |
| 988 | dev_err(dev, "bad fw checksum (expected: 0x%x, got: 0x%x)\n", |
| 989 | fw_hdr->checksum, checksum); |
| 990 | return -EINVAL; |
| 991 | } |
| 992 | |
| 993 | return 0; |
| 994 | } |
| 995 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 996 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 998 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | * This routine downloads the main operating code into the TI5052, using the |
| 1000 | * boot code already burned into E2PROM or ROM. |
| 1001 | */ |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1002 | static int download_fw(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | { |
Peter E. Berger | ef9324b2 | 2015-09-16 03:12:59 -0500 | [diff] [blame] | 1004 | struct device *dev = &serial->serial->interface->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | int status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | struct usb_interface_descriptor *interface; |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1007 | const struct firmware *fw; |
| 1008 | const char *fw_name = "edgeport/down3.bin"; |
| 1009 | struct edgeport_fw_hdr *fw_hdr; |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 1010 | |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1011 | status = request_firmware(&fw, fw_name, dev); |
| 1012 | if (status) { |
| 1013 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 1014 | fw_name, status); |
| 1015 | return status; |
| 1016 | } |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 1017 | |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1018 | if (check_fw_sanity(serial, fw)) { |
| 1019 | status = -EINVAL; |
| 1020 | goto out; |
| 1021 | } |
| 1022 | |
| 1023 | fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
| 1024 | |
| 1025 | /* If on-board version is newer, "fw_version" will be updated later. */ |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 1026 | serial->fw_version = (fw_hdr->major_version << 8) + |
| 1027 | fw_hdr->minor_version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1029 | /* |
| 1030 | * This routine is entered by both the BOOT mode and the Download mode |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | * We can determine which code is running by the reading the config |
| 1032 | * descriptor and if we have only one bulk pipe it is in boot mode |
| 1033 | */ |
| 1034 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; |
| 1035 | |
| 1036 | /* Default to type 2 i2c */ |
| 1037 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
| 1038 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1039 | status = choose_config(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | if (status) |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1041 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | |
| 1043 | interface = &serial->serial->interface->cur_altsetting->desc; |
| 1044 | if (!interface) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1045 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1046 | status = -ENODEV; |
| 1047 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | } |
| 1049 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1050 | /* |
| 1051 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING |
| 1052 | * if we have more than one endpoint we are definitely in download |
| 1053 | * mode |
| 1054 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1055 | if (interface->bNumEndpoints > 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1057 | status = do_download_mode(serial, fw); |
| 1058 | } else { |
| 1059 | /* Otherwise we will remain in configuring mode */ |
| 1060 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
| 1061 | status = do_boot_mode(serial, fw); |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1062 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 1064 | out: |
| 1065 | release_firmware(fw); |
| 1066 | return status; |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1067 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1069 | static int do_download_mode(struct edgeport_serial *serial, |
| 1070 | const struct firmware *fw) |
| 1071 | { |
| 1072 | struct device *dev = &serial->serial->interface->dev; |
| 1073 | int status = 0; |
| 1074 | int start_address; |
| 1075 | struct edge_ti_manuf_descriptor *ti_manuf_desc; |
| 1076 | int download_cur_ver; |
| 1077 | int download_new_ver; |
| 1078 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
| 1079 | struct ti_i2c_desc *rom_desc; |
| 1080 | |
| 1081 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
| 1082 | |
| 1083 | status = check_i2c_image(serial); |
| 1084 | if (status) { |
| 1085 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
| 1086 | return status; |
| 1087 | } |
| 1088 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1089 | /* |
| 1090 | * Validate Hardware version number |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1091 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 1092 | */ |
| 1093 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
| 1094 | if (!ti_manuf_desc) |
| 1095 | return -ENOMEM; |
| 1096 | |
| 1097 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
| 1098 | if (status) { |
| 1099 | kfree(ti_manuf_desc); |
| 1100 | return status; |
| 1101 | } |
| 1102 | |
| 1103 | /* Check version number of ION descriptor */ |
| 1104 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
| 1105 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
| 1106 | __func__, ti_cpu_rev(ti_manuf_desc)); |
| 1107 | kfree(ti_manuf_desc); |
| 1108 | return -EINVAL; |
| 1109 | } |
| 1110 | |
| 1111 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
| 1112 | if (!rom_desc) { |
| 1113 | kfree(ti_manuf_desc); |
| 1114 | return -ENOMEM; |
| 1115 | } |
| 1116 | |
| 1117 | /* Search for type 2 record (firmware record) */ |
| 1118 | start_address = get_descriptor_addr(serial, |
| 1119 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); |
| 1120 | if (start_address != 0) { |
| 1121 | struct ti_i2c_firmware_rec *firmware_version; |
| 1122 | u8 *record; |
| 1123 | |
| 1124 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", |
| 1125 | __func__); |
| 1126 | |
| 1127 | firmware_version = kmalloc(sizeof(*firmware_version), |
| 1128 | GFP_KERNEL); |
| 1129 | if (!firmware_version) { |
| 1130 | kfree(rom_desc); |
| 1131 | kfree(ti_manuf_desc); |
| 1132 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1134 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1135 | /* |
| 1136 | * Validate version number |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1137 | * Read the descriptor data |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1139 | status = read_rom(serial, start_address + |
| 1140 | sizeof(struct ti_i2c_desc), |
| 1141 | sizeof(struct ti_i2c_firmware_rec), |
| 1142 | (__u8 *)firmware_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | if (status) { |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1144 | kfree(firmware_version); |
| 1145 | kfree(rom_desc); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1146 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | return status; |
| 1148 | } |
| 1149 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1150 | /* |
| 1151 | * Check version number of download with current |
| 1152 | * version in I2c |
| 1153 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1154 | download_cur_ver = (firmware_version->Ver_Major << 8) + |
| 1155 | (firmware_version->Ver_Minor); |
| 1156 | download_new_ver = (fw_hdr->major_version << 8) + |
| 1157 | (fw_hdr->minor_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1159 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
| 1160 | __func__, firmware_version->Ver_Major, |
| 1161 | firmware_version->Ver_Minor, |
| 1162 | fw_hdr->major_version, fw_hdr->minor_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1164 | /* |
| 1165 | * Check if we have an old version in the I2C and |
| 1166 | * update if necessary |
| 1167 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1168 | if (download_cur_ver < download_new_ver) { |
| 1169 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
| 1170 | __func__, |
| 1171 | firmware_version->Ver_Major, |
| 1172 | firmware_version->Ver_Minor, |
| 1173 | fw_hdr->major_version, |
| 1174 | fw_hdr->minor_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1176 | record = kmalloc(1, GFP_KERNEL); |
| 1177 | if (!record) { |
| 1178 | kfree(firmware_version); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1179 | kfree(rom_desc); |
| 1180 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | return -ENOMEM; |
| 1182 | } |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1183 | /* |
| 1184 | * In order to update the I2C firmware we must |
| 1185 | * change the type 2 record to type 0xF2. This |
| 1186 | * will force the UMP to come up in Boot Mode. |
| 1187 | * Then while in boot mode, the driver will |
| 1188 | * download the latest firmware (padded to |
| 1189 | * 15.5k) into the UMP ram. Finally when the |
| 1190 | * device comes back up in download mode the |
| 1191 | * driver will cause the new firmware to be |
| 1192 | * copied from the UMP Ram to I2C and the |
| 1193 | * firmware will update the record type from |
| 1194 | * 0xf2 to 0x02. |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1195 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1196 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
| 1197 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1198 | /* |
| 1199 | * Change the I2C Firmware record type to |
| 1200 | * 0xf2 to trigger an update |
| 1201 | */ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1202 | status = write_rom(serial, start_address, |
| 1203 | sizeof(*record), record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | if (status) { |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1205 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1206 | kfree(firmware_version); |
| 1207 | kfree(rom_desc); |
| 1208 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1209 | return status; |
| 1210 | } |
| 1211 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1212 | /* |
| 1213 | * verify the write -- must do this in order |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1214 | * for write to complete before we do the |
| 1215 | * hardware reset |
| 1216 | */ |
| 1217 | status = read_rom(serial, |
| 1218 | start_address, |
| 1219 | sizeof(*record), |
| 1220 | record); |
| 1221 | if (status) { |
| 1222 | kfree(record); |
| 1223 | kfree(firmware_version); |
| 1224 | kfree(rom_desc); |
| 1225 | kfree(ti_manuf_desc); |
| 1226 | return status; |
| 1227 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1229 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
| 1230 | dev_err(dev, "%s - error resetting device\n", |
| 1231 | __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1232 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1233 | kfree(firmware_version); |
| 1234 | kfree(rom_desc); |
| 1235 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | return -ENODEV; |
| 1237 | } |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1238 | |
| 1239 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
| 1240 | |
| 1241 | /* Reset UMP -- Back to BOOT MODE */ |
| 1242 | status = ti_vsend_sync(serial->serial->dev, |
| 1243 | UMPC_HARDWARE_RESET, |
| 1244 | 0, 0, NULL, 0, |
| 1245 | TI_VSEND_TIMEOUT_DEFAULT); |
| 1246 | |
| 1247 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", |
| 1248 | __func__, status); |
| 1249 | |
| 1250 | /* return an error on purpose. */ |
| 1251 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1252 | kfree(firmware_version); |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1253 | kfree(rom_desc); |
| 1254 | kfree(ti_manuf_desc); |
| 1255 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | } |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1257 | /* Same or newer fw version is already loaded */ |
| 1258 | serial->fw_version = download_cur_ver; |
| 1259 | kfree(firmware_version); |
| 1260 | } |
| 1261 | /* Search for type 0xF2 record (firmware blank record) */ |
| 1262 | else { |
| 1263 | start_address = get_descriptor_addr(serial, |
| 1264 | I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc); |
| 1265 | if (start_address != 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1266 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1267 | sizeof(struct ti_i2c_firmware_rec)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | __u8 *header; |
| 1269 | __u8 *vheader; |
| 1270 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1271 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | if (!header) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1273 | kfree(rom_desc); |
| 1274 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | return -ENOMEM; |
| 1276 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1278 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); |
| 1279 | if (!vheader) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1280 | kfree(header); |
| 1281 | kfree(rom_desc); |
| 1282 | kfree(ti_manuf_desc); |
| 1283 | return -ENOMEM; |
| 1284 | } |
| 1285 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1286 | dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", |
| 1287 | __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1288 | |
| 1289 | /* |
| 1290 | * In order to update the I2C firmware we must change |
| 1291 | * the type 2 record to type 0xF2. This will force the |
| 1292 | * UMP to come up in Boot Mode. Then while in boot |
| 1293 | * mode, the driver will download the latest firmware |
| 1294 | * (padded to 15.5k) into the UMP ram. Finally when the |
| 1295 | * device comes back up in download mode the driver |
| 1296 | * will cause the new firmware to be copied from the |
| 1297 | * UMP Ram to I2C and the firmware will update the |
| 1298 | * record type from 0xf2 to 0x02. |
| 1299 | */ |
Peter E. Berger | 277bf37 | 2015-09-16 03:12:58 -0500 | [diff] [blame] | 1300 | status = build_i2c_fw_hdr(header, fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1302 | kfree(vheader); |
| 1303 | kfree(header); |
| 1304 | kfree(rom_desc); |
| 1305 | kfree(ti_manuf_desc); |
Roel Kluin | fd6e5bb | 2010-08-10 14:29:19 -0700 | [diff] [blame] | 1306 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | } |
| 1308 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1309 | /* |
| 1310 | * Update I2C with type 0xf2 record with correct |
| 1311 | * size and checksum |
| 1312 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1313 | status = write_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | start_address, |
| 1315 | HEADER_SIZE, |
| 1316 | header); |
| 1317 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1318 | kfree(vheader); |
| 1319 | kfree(header); |
| 1320 | kfree(rom_desc); |
| 1321 | kfree(ti_manuf_desc); |
Roel Kluin | 9800eb3 | 2010-07-20 15:29:08 -0700 | [diff] [blame] | 1322 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | } |
| 1324 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1325 | /* |
| 1326 | * verify the write -- must do this in order for |
| 1327 | * write to complete before we do the hardware reset |
| 1328 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1329 | status = read_rom(serial, start_address, |
| 1330 | HEADER_SIZE, vheader); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | |
| 1332 | if (status) { |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1333 | dev_dbg(dev, "%s - can't read header back\n", |
| 1334 | __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1335 | kfree(vheader); |
| 1336 | kfree(header); |
| 1337 | kfree(rom_desc); |
| 1338 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1339 | return status; |
| 1340 | } |
| 1341 | if (memcmp(vheader, header, HEADER_SIZE)) { |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1342 | dev_dbg(dev, "%s - write download record failed\n", |
| 1343 | __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1344 | kfree(vheader); |
| 1345 | kfree(header); |
| 1346 | kfree(rom_desc); |
| 1347 | kfree(ti_manuf_desc); |
Roel Kluin | 1e29709 | 2010-07-02 00:36:43 +0200 | [diff] [blame] | 1348 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | } |
| 1350 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1351 | kfree(vheader); |
| 1352 | kfree(header); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1354 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1356 | /* Tell firmware to copy download image into I2C */ |
| 1357 | status = ti_vsend_sync(serial->serial->dev, |
Peter E. Berger | c3ece7e | 2015-07-31 01:55:05 -0500 | [diff] [blame] | 1358 | UMPC_COPY_DNLD_TO_I2C, |
| 1359 | 0, 0, NULL, 0, |
| 1360 | TI_VSEND_TIMEOUT_FW_DOWNLOAD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1362 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, |
| 1363 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1365 | dev_err(dev, |
| 1366 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1367 | __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1368 | kfree(rom_desc); |
| 1369 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | return status; |
| 1371 | } |
| 1372 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | } |
| 1374 | |
Peter E. Berger | bebf1f1 | 2015-09-16 03:13:00 -0500 | [diff] [blame] | 1375 | /* The device is running the download code */ |
| 1376 | kfree(rom_desc); |
| 1377 | kfree(ti_manuf_desc); |
| 1378 | return 0; |
| 1379 | } |
| 1380 | |
| 1381 | static int do_boot_mode(struct edgeport_serial *serial, |
| 1382 | const struct firmware *fw) |
| 1383 | { |
| 1384 | struct device *dev = &serial->serial->interface->dev; |
| 1385 | int status = 0; |
| 1386 | struct edge_ti_manuf_descriptor *ti_manuf_desc; |
| 1387 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
| 1388 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1389 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1391 | /* Configure the TI device so we can use the BULK pipes for download */ |
| 1392 | status = config_boot_dev(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | if (status) |
| 1394 | return status; |
| 1395 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1396 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
| 1397 | != USB_VENDOR_ID_ION) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1398 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
| 1399 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1401 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | } |
| 1403 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1404 | /* |
| 1405 | * We have an ION device (I2c Must be programmed) |
| 1406 | * Determine I2C image type |
| 1407 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1408 | if (i2c_type_bootmode(serial)) |
| 1409 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1411 | /* Check for ION Vendor ID and that the I2C is valid */ |
| 1412 | if (!check_i2c_image(serial)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1413 | struct ti_i2c_image_header *header; |
| 1414 | int i; |
| 1415 | __u8 cs = 0; |
| 1416 | __u8 *buffer; |
| 1417 | int buffer_size; |
| 1418 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1419 | /* |
| 1420 | * Validate Hardware version number |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 1422 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1423 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 1424 | if (!ti_manuf_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 1426 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1427 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1429 | kfree(ti_manuf_desc); |
| 1430 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1431 | } |
| 1432 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1433 | /* Check for version 2 */ |
| 1434 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1435 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
| 1436 | __func__, ti_cpu_rev(ti_manuf_desc)); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1437 | kfree(ti_manuf_desc); |
| 1438 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | } |
| 1440 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1441 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | /* |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1444 | * In order to update the I2C firmware we must change the type |
| 1445 | * 2 record to type 0xF2. This will force the UMP to come up |
| 1446 | * in Boot Mode. Then while in boot mode, the driver will |
| 1447 | * download the latest firmware (padded to 15.5k) into the |
| 1448 | * UMP ram. Finally when the device comes back up in download |
| 1449 | * mode the driver will cause the new firmware to be copied |
| 1450 | * from the UMP Ram to I2C and the firmware will update the |
| 1451 | * record type from 0xf2 to 0x02. |
| 1452 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | * Do we really have to copy the whole firmware image, |
| 1454 | * or could we do this in place! |
| 1455 | */ |
| 1456 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1457 | /* Allocate a 15.5k buffer + 3 byte header */ |
| 1458 | buffer_size = (((1024 * 16) - 512) + |
| 1459 | sizeof(struct ti_i2c_image_header)); |
| 1460 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 1461 | if (!buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1463 | |
| 1464 | /* Initialize the buffer to 0xff (pad the buffer) */ |
| 1465 | memset(buffer, 0xff, buffer_size); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1466 | memcpy(buffer, &fw->data[4], fw->size - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1468 | for (i = sizeof(struct ti_i2c_image_header); |
| 1469 | i < buffer_size; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | cs = (__u8)(cs + buffer[i]); |
| 1471 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1472 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | header = (struct ti_i2c_image_header *)buffer; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1474 | |
| 1475 | /* update length and checksum after padding */ |
| 1476 | header->Length = cpu_to_le16((__u16)(buffer_size - |
| 1477 | sizeof(struct ti_i2c_image_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | header->CheckSum = cs; |
| 1479 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1480 | /* Download the operational code */ |
Peter E. Berger | c0e3483 | 2015-07-31 01:55:06 -0500 | [diff] [blame] | 1481 | dev_dbg(dev, "%s - Downloading operational code image version %d.%d (TI UMP)\n", |
| 1482 | __func__, |
| 1483 | fw_hdr->major_version, fw_hdr->minor_version); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1484 | status = download_code(serial, buffer, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1486 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | |
| 1488 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1489 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | return status; |
| 1491 | } |
| 1492 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1493 | /* Device will reboot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
| 1495 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1496 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | |
Johan Hovold | e35d6d7 | 2017-01-03 16:39:46 +0100 | [diff] [blame] | 1498 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | } |
| 1500 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1501 | stayinbootmode: |
| 1502 | /* Eprom is invalid or blank stay in boot mode */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1503 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | serial->product_info.TiMode = TI_MODE_BOOT; |
| 1505 | |
Johan Hovold | 4f9785c | 2017-01-03 16:39:44 +0100 | [diff] [blame] | 1506 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | } |
| 1508 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1509 | static int ti_do_config(struct edgeport_port *port, int feature, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1510 | { |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1511 | int port_number = port->port->port_number; |
| 1512 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1513 | on = !!on; /* 1 or 0 not bitmask */ |
| 1514 | return send_cmd(port->port->serial->dev, |
| 1515 | feature, (__u8)(UMPM_UART1_PORT + port_number), |
| 1516 | on, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | } |
| 1518 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1519 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | { |
| 1521 | int status = 0; |
| 1522 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1523 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1525 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | if (status) |
| 1527 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1528 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | if (status) |
| 1530 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1531 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | } |
| 1533 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | /* Convert TI LSR to standard UART flags */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1535 | static __u8 map_line_status(__u8 ti_lsr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | { |
| 1537 | __u8 lsr = 0; |
| 1538 | |
| 1539 | #define MAP_FLAG(flagUmp, flagUart) \ |
| 1540 | if (ti_lsr & flagUmp) \ |
| 1541 | lsr |= flagUart; |
| 1542 | |
| 1543 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ |
| 1544 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ |
| 1545 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ |
| 1546 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1547 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
| 1548 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | |
| 1550 | #undef MAP_FLAG |
| 1551 | |
| 1552 | return lsr; |
| 1553 | } |
| 1554 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1555 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | { |
| 1557 | struct async_icount *icount; |
| 1558 | struct tty_struct *tty; |
| 1559 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1560 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1562 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
| 1563 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1564 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1565 | |
| 1566 | /* update input line counters */ |
| 1567 | if (msr & EDGEPORT_MSR_DELTA_CTS) |
| 1568 | icount->cts++; |
| 1569 | if (msr & EDGEPORT_MSR_DELTA_DSR) |
| 1570 | icount->dsr++; |
| 1571 | if (msr & EDGEPORT_MSR_DELTA_CD) |
| 1572 | icount->dcd++; |
| 1573 | if (msr & EDGEPORT_MSR_DELTA_RI) |
| 1574 | icount->rng++; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 1575 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1576 | } |
| 1577 | |
| 1578 | /* Save the new modem status */ |
| 1579 | edge_port->shadow_msr = msr & 0xf0; |
| 1580 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1581 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | /* handle CTS flow control */ |
| 1583 | if (tty && C_CRTSCTS(tty)) { |
Peter Hurley | d95e3ca | 2014-09-10 15:06:27 -0400 | [diff] [blame] | 1584 | if (msr & EDGEPORT_MSR_CTS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1587 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | } |
| 1589 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1590 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
| 1591 | __u8 lsr, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | { |
| 1593 | struct async_icount *icount; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1594 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
| 1595 | LSR_FRM_ERR | LSR_BREAK)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1596 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1597 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | |
| 1599 | edge_port->shadow_lsr = lsr; |
| 1600 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1601 | if (new_lsr & LSR_BREAK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | /* |
| 1603 | * Parity and Framing errors only count if they |
| 1604 | * occur exclusive of a break being received. |
| 1605 | */ |
| 1606 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | |
| 1608 | /* Place LSR data byte into Rx buffer */ |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1609 | if (lsr_data) |
| 1610 | edge_tty_recv(edge_port->port, &data, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1611 | |
| 1612 | /* update input line counters */ |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1613 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | if (new_lsr & LSR_BREAK) |
| 1615 | icount->brk++; |
| 1616 | if (new_lsr & LSR_OVER_ERR) |
| 1617 | icount->overrun++; |
| 1618 | if (new_lsr & LSR_PAR_ERR) |
| 1619 | icount->parity++; |
| 1620 | if (new_lsr & LSR_FRM_ERR) |
| 1621 | icount->frame++; |
| 1622 | } |
| 1623 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1624 | static void edge_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1626 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | struct usb_serial_port *port; |
| 1628 | struct edgeport_port *edge_port; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1629 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1630 | unsigned char *data = urb->transfer_buffer; |
| 1631 | int length = urb->actual_length; |
| 1632 | int port_number; |
| 1633 | int function; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1634 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1635 | __u8 lsr; |
| 1636 | __u8 msr; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1637 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1639 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | case 0: |
| 1641 | /* success */ |
| 1642 | break; |
| 1643 | case -ECONNRESET: |
| 1644 | case -ENOENT: |
| 1645 | case -ESHUTDOWN: |
| 1646 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1647 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1648 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | return; |
| 1650 | default: |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1651 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1652 | "%d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | goto exit; |
| 1654 | } |
| 1655 | |
| 1656 | if (!length) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1657 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1658 | goto exit; |
| 1659 | } |
| 1660 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1661 | dev = &edge_serial->serial->dev->dev; |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1662 | usb_serial_debug_data(dev, __func__, length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1663 | |
| 1664 | if (length != 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1665 | dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1666 | goto exit; |
| 1667 | } |
| 1668 | |
| 1669 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
| 1670 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1671 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
| 1672 | port_number, function, data[1]); |
Johan Hovold | 0b1d250 | 2017-03-06 17:36:37 +0100 | [diff] [blame] | 1673 | |
| 1674 | if (port_number >= edge_serial->serial->num_ports) { |
| 1675 | dev_err(dev, "bad port number %d\n", port_number); |
| 1676 | goto exit; |
| 1677 | } |
| 1678 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | port = edge_serial->serial->port[port_number]; |
| 1680 | edge_port = usb_get_serial_port_data(port); |
| 1681 | if (!edge_port) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1682 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | return; |
| 1684 | } |
| 1685 | switch (function) { |
| 1686 | case TIUMP_INTERRUPT_CODE_LSR: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1687 | lsr = map_line_status(data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1689 | /* |
| 1690 | * Save the LSR event for bulk read completion routine |
| 1691 | */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1692 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
| 1693 | __func__, port_number, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | edge_port->lsr_event = 1; |
| 1695 | edge_port->lsr_mask = lsr; |
| 1696 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1697 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
| 1698 | __func__, port_number, lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1699 | handle_new_lsr(edge_port, 0, lsr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | } |
| 1701 | break; |
| 1702 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1703 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | /* Copy MSR from UMP */ |
| 1705 | msr = data[1]; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1706 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
| 1707 | __func__, port_number, msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1708 | handle_new_msr(edge_port, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | break; |
| 1710 | |
| 1711 | default: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1712 | dev_err(&urb->dev->dev, |
| 1713 | "%s - Unknown Interrupt code from UMP %x\n", |
| 1714 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | } |
| 1718 | |
| 1719 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1720 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1721 | if (retval) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1722 | dev_err(&urb->dev->dev, |
| 1723 | "%s - usb_submit_urb failed with result %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1724 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | } |
| 1726 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1727 | static void edge_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1728 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1729 | struct edgeport_port *edge_port = urb->context; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1730 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1731 | unsigned char *data = urb->transfer_buffer; |
John Ogness | 6778b0c | 2018-06-24 00:32:07 +0200 | [diff] [blame] | 1732 | unsigned long flags; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1733 | int retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1734 | int port_number; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1735 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1737 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | case 0: |
| 1739 | /* success */ |
| 1740 | break; |
| 1741 | case -ECONNRESET: |
| 1742 | case -ENOENT: |
| 1743 | case -ESHUTDOWN: |
| 1744 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1745 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | return; |
| 1747 | default: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1748 | dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | } |
| 1750 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1751 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | goto exit; |
| 1753 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1754 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1755 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | return; |
| 1757 | } |
| 1758 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1759 | port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | |
Johan Hovold | 654b404 | 2017-03-06 17:36:40 +0100 | [diff] [blame] | 1761 | if (urb->actual_length > 0 && edge_port->lsr_event) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | edge_port->lsr_event = 0; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1763 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
| 1764 | __func__, port_number, edge_port->lsr_mask, *data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1765 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | /* Adjust buffer length/pointer */ |
| 1767 | --urb->actual_length; |
| 1768 | ++data; |
| 1769 | } |
| 1770 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1771 | if (urb->actual_length) { |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1772 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1773 | if (edge_port->close_pending) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1774 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1775 | __func__); |
| 1776 | else |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1777 | edge_tty_recv(edge_port->port, data, |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1778 | urb->actual_length); |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1779 | edge_port->port->icount.rx += urb->actual_length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | } |
| 1781 | |
| 1782 | exit: |
| 1783 | /* continue read unless stopped */ |
John Ogness | 6778b0c | 2018-06-24 00:32:07 +0200 | [diff] [blame] | 1784 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1785 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1786 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1787 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1789 | |
John Ogness | 6778b0c | 2018-06-24 00:32:07 +0200 | [diff] [blame] | 1790 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1791 | if (retval) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1792 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | } |
| 1794 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1795 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 1796 | int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1798 | int queued; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1800 | queued = tty_insert_flip_string(&port->port, data, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1801 | if (queued < length) |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1802 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1803 | __func__, length - queued); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1804 | tty_flip_buffer_push(&port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | } |
| 1806 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1807 | static void edge_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1809 | struct usb_serial_port *port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1811 | int status = urb->status; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1812 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | edge_port->ep_write_urb_in_use = 0; |
| 1815 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1816 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1817 | case 0: |
| 1818 | /* success */ |
| 1819 | break; |
| 1820 | case -ECONNRESET: |
| 1821 | case -ENOENT: |
| 1822 | case -ESHUTDOWN: |
| 1823 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1824 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1825 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | return; |
| 1827 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1828 | dev_err_console(port, "%s - nonzero write bulk status " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1829 | "received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | } |
| 1831 | |
| 1832 | /* send any buffered data */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1833 | tty = tty_port_tty_get(&port->port); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1834 | edge_send(port, tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1835 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | } |
| 1837 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 1838 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | { |
| 1840 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1841 | struct edgeport_serial *edge_serial; |
| 1842 | struct usb_device *dev; |
| 1843 | struct urb *urb; |
| 1844 | int port_number; |
| 1845 | int status; |
| 1846 | u16 open_settings; |
| 1847 | u8 transaction_timeout; |
| 1848 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | if (edge_port == NULL) |
| 1850 | return -ENODEV; |
| 1851 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1852 | port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | |
| 1854 | dev = port->serial->dev; |
| 1855 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | /* turn off loopback */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1857 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1859 | dev_err(&port->dev, |
| 1860 | "%s - cannot send clear loopback command, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1861 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1862 | return status; |
| 1863 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1864 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1865 | /* set up the port settings */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1866 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1867 | edge_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1868 | |
| 1869 | /* open up the port */ |
| 1870 | |
| 1871 | /* milliseconds to timeout for DMA transfer */ |
| 1872 | transaction_timeout = 2; |
| 1873 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1874 | edge_port->ump_read_timeout = |
| 1875 | max(20, ((transaction_timeout * 3) / 2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1877 | /* milliseconds to timeout for DMA transfer */ |
| 1878 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | |
| 1879 | UMP_PIPE_TRANS_TIMEOUT_ENA | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1880 | (transaction_timeout << 2)); |
| 1881 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1882 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1883 | |
| 1884 | /* Tell TI to open and start the port */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1885 | status = send_cmd(dev, UMPC_OPEN_PORT, |
| 1886 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1887 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1888 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
| 1889 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | return status; |
| 1891 | } |
| 1892 | |
| 1893 | /* Start the DMA? */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1894 | status = send_cmd(dev, UMPC_START_PORT, |
| 1895 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1896 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1897 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
| 1898 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | return status; |
| 1900 | } |
| 1901 | |
| 1902 | /* Clear TX and RX buffers in UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1903 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1904 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1905 | dev_err(&port->dev, |
| 1906 | "%s - cannot send clear buffers command, %d\n", |
| 1907 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1908 | return status; |
| 1909 | } |
| 1910 | |
| 1911 | /* Read Initial MSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1912 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
| 1913 | (__u16)(UMPM_UART1_PORT + port_number), |
| 1914 | &edge_port->shadow_msr, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1915 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1916 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
| 1917 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1918 | return status; |
| 1919 | } |
| 1920 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1921 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1922 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | /* Set Initial MCR */ |
| 1924 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1925 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | |
| 1927 | edge_serial = edge_port->edge_serial; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1928 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | return -ERESTARTSYS; |
| 1930 | if (edge_serial->num_ports_open == 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1931 | /* we are the first port to open, post the interrupt urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1932 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1933 | urb->context = edge_serial; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1934 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1935 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1936 | dev_err(&port->dev, |
| 1937 | "%s - usb_submit_urb failed with value %d\n", |
| 1938 | __func__, status); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1939 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1940 | } |
| 1941 | } |
| 1942 | |
| 1943 | /* |
| 1944 | * reset the data toggle on the bulk endpoints to work around bug in |
| 1945 | * host controllers where things get out of sync some times |
| 1946 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1947 | usb_clear_halt(dev, port->write_urb->pipe); |
| 1948 | usb_clear_halt(dev, port->read_urb->pipe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1949 | |
| 1950 | /* start up our bulk read urb */ |
| 1951 | urb = port->read_urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1953 | urb->context = edge_port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1954 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1956 | dev_err(&port->dev, |
| 1957 | "%s - read bulk usb_submit_urb failed with value %d\n", |
| 1958 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1959 | goto unlink_int_urb; |
| 1960 | } |
| 1961 | |
| 1962 | ++edge_serial->num_ports_open; |
| 1963 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1964 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1965 | |
| 1966 | unlink_int_urb: |
| 1967 | if (edge_port->edge_serial->num_ports_open == 0) |
| 1968 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1969 | release_es_lock: |
| 1970 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | return status; |
| 1972 | } |
| 1973 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 1974 | static void edge_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | { |
| 1976 | struct edgeport_serial *edge_serial; |
| 1977 | struct edgeport_port *edge_port; |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1978 | struct usb_serial *serial = port->serial; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1979 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | int port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1981 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1982 | edge_serial = usb_get_serial_data(port->serial); |
| 1983 | edge_port = usb_get_serial_port_data(port); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1984 | if (edge_serial == NULL || edge_port == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | return; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1986 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 1987 | /* |
| 1988 | * The bulkreadcompletion routine will check |
| 1989 | * this flag and dump add read data |
| 1990 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1991 | edge_port->close_pending = 1; |
| 1992 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | usb_kill_urb(port->read_urb); |
| 1994 | usb_kill_urb(port->write_urb); |
| 1995 | edge_port->ep_write_urb_in_use = 0; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1996 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1997 | kfifo_reset_out(&port->write_fifo); |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1998 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2000 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2001 | port_number = port->port_number; |
Johan Hovold | bca87e9 | 2013-03-21 12:37:38 +0100 | [diff] [blame] | 2002 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
| 2003 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 2004 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2005 | mutex_lock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2006 | --edge_port->edge_serial->num_ports_open; |
| 2007 | if (edge_port->edge_serial->num_ports_open <= 0) { |
| 2008 | /* last port is now closed, let's shut down our interrupt urb */ |
| 2009 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 2010 | edge_port->edge_serial->num_ports_open = 0; |
| 2011 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2012 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | edge_port->close_pending = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2014 | } |
| 2015 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2016 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 2017 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2018 | { |
| 2019 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2020 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2021 | if (count == 0) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2022 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2023 | return 0; |
| 2024 | } |
| 2025 | |
| 2026 | if (edge_port == NULL) |
| 2027 | return -ENODEV; |
| 2028 | if (edge_port->close_pending == 1) |
| 2029 | return -ENODEV; |
| 2030 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 2031 | count = kfifo_in_locked(&port->write_fifo, data, count, |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 2032 | &edge_port->ep_lock); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 2033 | edge_send(port, tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2034 | |
| 2035 | return count; |
| 2036 | } |
| 2037 | |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 2038 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2039 | { |
| 2040 | int count, result; |
| 2041 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | unsigned long flags; |
| 2043 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2045 | |
| 2046 | if (edge_port->ep_write_urb_in_use) { |
| 2047 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2048 | return; |
| 2049 | } |
| 2050 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 2051 | count = kfifo_out(&port->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2052 | port->write_urb->transfer_buffer, |
| 2053 | port->bulk_out_size); |
| 2054 | |
| 2055 | if (count == 0) { |
| 2056 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2057 | return; |
| 2058 | } |
| 2059 | |
| 2060 | edge_port->ep_write_urb_in_use = 1; |
| 2061 | |
| 2062 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2063 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 2064 | usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2065 | |
| 2066 | /* set up our urb */ |
Johan Hovold | fd11961 | 2011-11-06 19:06:30 +0100 | [diff] [blame] | 2067 | port->write_urb->transfer_buffer_length = count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | |
| 2069 | /* send the data out the bulk port */ |
| 2070 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 2071 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 2072 | dev_err_console(port, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2073 | "%s - failed submitting write urb, error %d\n", |
| 2074 | __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | edge_port->ep_write_urb_in_use = 0; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2076 | /* TODO: reschedule edge_send */ |
| 2077 | } else |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2078 | edge_port->port->icount.tx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2079 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 2080 | /* |
| 2081 | * wakeup any process waiting for writes to complete |
| 2082 | * there is now more room in the buffer for new writes |
| 2083 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2084 | if (tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2085 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | } |
| 2087 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2088 | static int edge_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2089 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2090 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2092 | int room = 0; |
| 2093 | unsigned long flags; |
| 2094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2096 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2097 | if (edge_port->close_pending == 1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2098 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2099 | |
| 2100 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 2101 | room = kfifo_avail(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2102 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2103 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2104 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2105 | return room; |
| 2106 | } |
| 2107 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2108 | static int edge_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2109 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2110 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2111 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2112 | int chars = 0; |
| 2113 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2114 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2115 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2116 | |
| 2117 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 2118 | chars = kfifo_len(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2119 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2120 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2121 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2122 | return chars; |
| 2123 | } |
| 2124 | |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2125 | static bool edge_tx_empty(struct usb_serial_port *port) |
| 2126 | { |
| 2127 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2128 | int ret; |
| 2129 | |
| 2130 | ret = tx_active(edge_port); |
| 2131 | if (ret > 0) |
| 2132 | return false; |
| 2133 | |
| 2134 | return true; |
| 2135 | } |
| 2136 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2137 | static void edge_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2139 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2141 | int status; |
| 2142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2143 | if (edge_port == NULL) |
| 2144 | return; |
| 2145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2146 | /* if we are implementing XON/XOFF, send the stop character */ |
| 2147 | if (I_IXOFF(tty)) { |
| 2148 | unsigned char stop_char = STOP_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2149 | status = edge_write(tty, port, &stop_char, 1); |
| 2150 | if (status <= 0) { |
| 2151 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); |
| 2152 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2153 | } |
| 2154 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 2155 | /* |
| 2156 | * if we are implementing RTS/CTS, stop reads |
| 2157 | * and the Edgeport will clear the RTS line |
| 2158 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2159 | if (C_CRTSCTS(tty)) |
| 2160 | stop_read(edge_port); |
| 2161 | |
| 2162 | } |
| 2163 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2164 | static void edge_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2165 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2166 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2167 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2168 | int status; |
| 2169 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | if (edge_port == NULL) |
| 2171 | return; |
| 2172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2173 | /* if we are implementing XON/XOFF, send the start character */ |
| 2174 | if (I_IXOFF(tty)) { |
| 2175 | unsigned char start_char = START_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2176 | status = edge_write(tty, port, &start_char, 1); |
| 2177 | if (status <= 0) { |
| 2178 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); |
| 2179 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | } |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 2181 | /* |
| 2182 | * if we are implementing RTS/CTS, restart reads |
| 2183 | * are the Edgeport will assert the RTS line |
| 2184 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | if (C_CRTSCTS(tty)) { |
| 2186 | status = restart_read(edge_port); |
| 2187 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2188 | dev_err(&port->dev, |
| 2189 | "%s - read bulk usb_submit_urb failed: %d\n", |
| 2190 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | } |
| 2192 | |
| 2193 | } |
| 2194 | |
| 2195 | static void stop_read(struct edgeport_port *edge_port) |
| 2196 | { |
| 2197 | unsigned long flags; |
| 2198 | |
| 2199 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2200 | |
| 2201 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
| 2202 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; |
| 2203 | edge_port->shadow_mcr &= ~MCR_RTS; |
| 2204 | |
| 2205 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2206 | } |
| 2207 | |
| 2208 | static int restart_read(struct edgeport_port *edge_port) |
| 2209 | { |
| 2210 | struct urb *urb; |
| 2211 | int status = 0; |
| 2212 | unsigned long flags; |
| 2213 | |
| 2214 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2215 | |
| 2216 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { |
| 2217 | urb = edge_port->port->read_urb; |
Oliver Neukum | efdff60 | 2007-06-05 10:50:48 +0200 | [diff] [blame] | 2218 | status = usb_submit_urb(urb, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2219 | } |
| 2220 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
| 2221 | edge_port->shadow_mcr |= MCR_RTS; |
| 2222 | |
| 2223 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2224 | |
| 2225 | return status; |
| 2226 | } |
| 2227 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2228 | static void change_port_settings(struct tty_struct *tty, |
| 2229 | struct edgeport_port *edge_port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2230 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2231 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2232 | struct ump_uart_config *config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | int baud; |
| 2234 | unsigned cflag; |
| 2235 | int status; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2236 | int port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2238 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2239 | if (!config) { |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2240 | tty->termios = *old_termios; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2241 | return; |
| 2242 | } |
| 2243 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2244 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | |
| 2246 | config->wFlags = 0; |
| 2247 | |
| 2248 | /* These flags must be set */ |
| 2249 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; |
| 2250 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; |
| 2251 | config->bUartMode = (__u8)(edge_port->bUartMode); |
| 2252 | |
| 2253 | switch (cflag & CSIZE) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2254 | case CS5: |
| 2255 | config->bDataBits = UMP_UART_CHAR5BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2256 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2257 | break; |
| 2258 | case CS6: |
| 2259 | config->bDataBits = UMP_UART_CHAR6BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2260 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2261 | break; |
| 2262 | case CS7: |
| 2263 | config->bDataBits = UMP_UART_CHAR7BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2264 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2265 | break; |
| 2266 | default: |
| 2267 | case CS8: |
| 2268 | config->bDataBits = UMP_UART_CHAR8BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2269 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2270 | break; |
| 2271 | } |
| 2272 | |
| 2273 | if (cflag & PARENB) { |
| 2274 | if (cflag & PARODD) { |
| 2275 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2276 | config->bParity = UMP_UART_ODDPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2277 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2278 | } else { |
| 2279 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2280 | config->bParity = UMP_UART_EVENPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2281 | dev_dbg(dev, "%s - parity = even\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | } |
| 2283 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2284 | config->bParity = UMP_UART_NOPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2285 | dev_dbg(dev, "%s - parity = none\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | } |
| 2287 | |
| 2288 | if (cflag & CSTOPB) { |
| 2289 | config->bStopBits = UMP_UART_STOPBIT2; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2290 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2291 | } else { |
| 2292 | config->bStopBits = UMP_UART_STOPBIT1; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2293 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | } |
| 2295 | |
| 2296 | /* figure out the flow control settings */ |
| 2297 | if (cflag & CRTSCTS) { |
| 2298 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; |
| 2299 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2300 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2301 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2302 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | restart_read(edge_port); |
| 2304 | } |
| 2305 | |
Peter E. Berger | 7589951 | 2015-09-16 03:13:02 -0500 | [diff] [blame] | 2306 | /* |
| 2307 | * if we are implementing XON/XOFF, set the start and stop |
| 2308 | * character in the device |
| 2309 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2310 | config->cXon = START_CHAR(tty); |
| 2311 | config->cXoff = STOP_CHAR(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2312 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2313 | /* if we are implementing INBOUND XON/XOFF */ |
| 2314 | if (I_IXOFF(tty)) { |
| 2315 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2316 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2317 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2318 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2319 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2320 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2321 | /* if we are implementing OUTBOUND XON/XOFF */ |
| 2322 | if (I_IXON(tty)) { |
| 2323 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2324 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2325 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2326 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2327 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2329 | tty->termios.c_cflag &= ~CMSPAR; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2331 | /* Round the baud rate */ |
| 2332 | baud = tty_get_baud_rate(tty); |
| 2333 | if (!baud) { |
| 2334 | /* pick a default, any default... */ |
| 2335 | baud = 9600; |
Johan Hovold | 6aeb75e | 2017-05-11 11:41:21 +0200 | [diff] [blame] | 2336 | } else { |
| 2337 | /* Avoid a zero divisor. */ |
| 2338 | baud = min(baud, 461550); |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2339 | tty_encode_baud_rate(tty, baud, baud); |
Johan Hovold | 6aeb75e | 2017-05-11 11:41:21 +0200 | [diff] [blame] | 2340 | } |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2342 | edge_port->baud_rate = baud; |
| 2343 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); |
| 2344 | |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2345 | /* FIXME: Recompute actual baud from divisor here */ |
| 2346 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2347 | dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2348 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2349 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
| 2350 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); |
| 2351 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); |
| 2352 | dev_dbg(dev, "bParity: %d\n", config->bParity); |
| 2353 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); |
| 2354 | dev_dbg(dev, "cXon: %d\n", config->cXon); |
| 2355 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); |
| 2356 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2357 | |
| 2358 | /* move the word values into big endian mode */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2359 | cpu_to_be16s(&config->wFlags); |
| 2360 | cpu_to_be16s(&config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2362 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | (__u8)(UMPM_UART1_PORT + port_number), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2364 | 0, (__u8 *)config, sizeof(*config)); |
| 2365 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2366 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
| 2367 | __func__, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2368 | kfree(config); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2369 | } |
| 2370 | |
Alan Cox | 2e0ddd6 | 2008-07-22 11:12:33 +0100 | [diff] [blame] | 2371 | static void edge_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2372 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | { |
| 2374 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2375 | |
| 2376 | if (edge_port == NULL) |
| 2377 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2378 | /* change the port settings to the new ones specified */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2379 | change_port_settings(tty, edge_port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | } |
| 2381 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 2382 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2383 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2385 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2387 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2388 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2390 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2391 | mcr = edge_port->shadow_mcr; |
| 2392 | if (set & TIOCM_RTS) |
| 2393 | mcr |= MCR_RTS; |
| 2394 | if (set & TIOCM_DTR) |
| 2395 | mcr |= MCR_DTR; |
| 2396 | if (set & TIOCM_LOOP) |
| 2397 | mcr |= MCR_LOOPBACK; |
| 2398 | |
| 2399 | if (clear & TIOCM_RTS) |
| 2400 | mcr &= ~MCR_RTS; |
| 2401 | if (clear & TIOCM_DTR) |
| 2402 | mcr &= ~MCR_DTR; |
| 2403 | if (clear & TIOCM_LOOP) |
| 2404 | mcr &= ~MCR_LOOPBACK; |
| 2405 | |
| 2406 | edge_port->shadow_mcr = mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2407 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2409 | restore_mcr(edge_port, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2410 | return 0; |
| 2411 | } |
| 2412 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 2413 | static int edge_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2415 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2417 | unsigned int result = 0; |
| 2418 | unsigned int msr; |
| 2419 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2420 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2422 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2423 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2424 | msr = edge_port->shadow_msr; |
| 2425 | mcr = edge_port->shadow_mcr; |
| 2426 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ |
| 2427 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ |
| 2428 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ |
| 2429 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ |
| 2430 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ |
| 2431 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ |
| 2432 | |
| 2433 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2434 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2435 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | |
| 2437 | return result; |
| 2438 | } |
| 2439 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2440 | static int get_serial_info(struct edgeport_port *edge_port, |
| 2441 | struct serial_struct __user *retinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | { |
| 2443 | struct serial_struct tmp; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2444 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2445 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2446 | cwait = edge_port->port->port.closing_wait; |
| 2447 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
Johan Hovold | b6fd35e | 2013-04-18 17:33:17 +0200 | [diff] [blame] | 2448 | cwait = jiffies_to_msecs(cwait) / 10; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | memset(&tmp, 0, sizeof(tmp)); |
| 2451 | |
| 2452 | tmp.type = PORT_16550A; |
Greg Kroah-Hartman | e5b1e20 | 2013-06-07 11:04:28 -0700 | [diff] [blame] | 2453 | tmp.line = edge_port->port->minor; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2454 | tmp.port = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2455 | tmp.irq = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2456 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; |
| 2457 | tmp.baud_base = 9600; |
| 2458 | tmp.close_delay = 5*HZ; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2459 | tmp.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | |
| 2461 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 2462 | return -EFAULT; |
| 2463 | return 0; |
| 2464 | } |
| 2465 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 2466 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2467 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2468 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2469 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2470 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2471 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2472 | switch (cmd) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2473 | case TIOCGSERIAL: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2474 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2475 | return get_serial_info(edge_port, |
| 2476 | (struct serial_struct __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2477 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2478 | return -ENOIOCTLCMD; |
| 2479 | } |
| 2480 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2481 | static void edge_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2482 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2483 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2485 | int status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2486 | int bv = 0; /* Off */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2487 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2488 | if (break_state == -1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2489 | bv = 1; /* On */ |
| 2490 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); |
| 2491 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2492 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
| 2493 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2494 | } |
| 2495 | |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2496 | static void edge_heartbeat_schedule(struct edgeport_serial *edge_serial) |
| 2497 | { |
| 2498 | if (!edge_serial->use_heartbeat) |
| 2499 | return; |
| 2500 | |
| 2501 | schedule_delayed_work(&edge_serial->heartbeat_work, |
| 2502 | FW_HEARTBEAT_SECS * HZ); |
| 2503 | } |
| 2504 | |
| 2505 | static void edge_heartbeat_work(struct work_struct *work) |
| 2506 | { |
| 2507 | struct edgeport_serial *serial; |
| 2508 | struct ti_i2c_desc *rom_desc; |
| 2509 | |
| 2510 | serial = container_of(work, struct edgeport_serial, |
| 2511 | heartbeat_work.work); |
| 2512 | |
| 2513 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
| 2514 | |
| 2515 | /* Descriptor address request is enough to reset the firmware timer */ |
| 2516 | if (!rom_desc || !get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
| 2517 | rom_desc)) { |
| 2518 | dev_err(&serial->serial->interface->dev, |
| 2519 | "%s - Incomplete heartbeat\n", __func__); |
| 2520 | } |
| 2521 | kfree(rom_desc); |
| 2522 | |
| 2523 | edge_heartbeat_schedule(serial); |
| 2524 | } |
| 2525 | |
Johan Hovold | 49f4ff2 | 2017-03-16 17:13:41 +0100 | [diff] [blame] | 2526 | static int edge_calc_num_ports(struct usb_serial *serial, |
| 2527 | struct usb_serial_endpoints *epds) |
| 2528 | { |
| 2529 | struct device *dev = &serial->interface->dev; |
| 2530 | unsigned char num_ports = serial->type->num_ports; |
| 2531 | |
| 2532 | /* Make sure we have the required endpoints when in download mode. */ |
| 2533 | if (serial->interface->cur_altsetting->desc.bNumEndpoints > 1) { |
| 2534 | if (epds->num_bulk_in < num_ports || |
Johan Hovold | 9c8299b | 2017-03-16 17:13:43 +0100 | [diff] [blame] | 2535 | epds->num_bulk_out < num_ports || |
| 2536 | epds->num_interrupt_in < 1) { |
Johan Hovold | 49f4ff2 | 2017-03-16 17:13:41 +0100 | [diff] [blame] | 2537 | dev_err(dev, "required endpoints missing\n"); |
| 2538 | return -ENODEV; |
| 2539 | } |
| 2540 | } |
| 2541 | |
| 2542 | return num_ports; |
| 2543 | } |
| 2544 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2545 | static int edge_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | { |
| 2547 | struct edgeport_serial *edge_serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2548 | int status; |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2549 | u16 product_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2550 | |
| 2551 | /* create our private serial structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 2552 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 2553 | if (!edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2554 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 2555 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2556 | mutex_init(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | edge_serial->serial = serial; |
Johan Hovold | 4f9785c | 2017-01-03 16:39:44 +0100 | [diff] [blame] | 2558 | INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2559 | usb_set_serial_data(serial, edge_serial); |
| 2560 | |
Peter E. Berger | b414616 | 2015-09-16 03:13:01 -0500 | [diff] [blame] | 2561 | status = download_fw(edge_serial); |
Johan Hovold | 4f9785c | 2017-01-03 16:39:44 +0100 | [diff] [blame] | 2562 | if (status < 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2563 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2564 | return status; |
| 2565 | } |
| 2566 | |
Johan Hovold | 4f9785c | 2017-01-03 16:39:44 +0100 | [diff] [blame] | 2567 | if (status > 0) |
| 2568 | return 1; /* bind but do not register any ports */ |
| 2569 | |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2570 | product_id = le16_to_cpu( |
| 2571 | edge_serial->serial->dev->descriptor.idProduct); |
| 2572 | |
| 2573 | /* Currently only the EP/416 models require heartbeat support */ |
| 2574 | if (edge_serial->fw_version > FW_HEARTBEAT_VERSION_CUTOFF) { |
| 2575 | if (product_id == ION_DEVICE_ID_TI_EDGEPORT_416 || |
| 2576 | product_id == ION_DEVICE_ID_TI_EDGEPORT_416B) { |
| 2577 | edge_serial->use_heartbeat = true; |
| 2578 | } |
| 2579 | } |
| 2580 | |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2581 | edge_heartbeat_schedule(edge_serial); |
| 2582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2584 | } |
| 2585 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2586 | static void edge_disconnect(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2587 | { |
Johan Hovold | 2330d0a | 2017-01-03 16:39:45 +0100 | [diff] [blame] | 2588 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
| 2589 | |
| 2590 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2591 | } |
| 2592 | |
| 2593 | static void edge_release(struct usb_serial *serial) |
| 2594 | { |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2595 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
| 2596 | |
| 2597 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); |
| 2598 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2599 | } |
| 2600 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2601 | static int edge_port_probe(struct usb_serial_port *port) |
| 2602 | { |
| 2603 | struct edgeport_port *edge_port; |
| 2604 | int ret; |
| 2605 | |
| 2606 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
| 2607 | if (!edge_port) |
| 2608 | return -ENOMEM; |
| 2609 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2610 | spin_lock_init(&edge_port->ep_lock); |
| 2611 | edge_port->port = port; |
| 2612 | edge_port->edge_serial = usb_get_serial_data(port->serial); |
| 2613 | edge_port->bUartMode = default_uart_mode; |
| 2614 | |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2615 | switch (port->port_number) { |
| 2616 | case 0: |
| 2617 | edge_port->uart_base = UMPMEM_BASE_UART1; |
| 2618 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; |
| 2619 | break; |
| 2620 | case 1: |
| 2621 | edge_port->uart_base = UMPMEM_BASE_UART2; |
| 2622 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; |
| 2623 | break; |
| 2624 | default: |
| 2625 | dev_err(&port->dev, "unknown port number\n"); |
| 2626 | ret = -ENODEV; |
| 2627 | goto err; |
| 2628 | } |
| 2629 | |
| 2630 | dev_dbg(&port->dev, |
| 2631 | "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", |
| 2632 | __func__, port->port_number, edge_port->uart_base, |
| 2633 | edge_port->dma_address); |
| 2634 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2635 | usb_set_serial_port_data(port, edge_port); |
| 2636 | |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2637 | ret = edge_create_sysfs_attrs(port); |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2638 | if (ret) |
| 2639 | goto err; |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2640 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2641 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
Johan Hovold | d7be622 | 2013-06-26 16:47:23 +0200 | [diff] [blame] | 2642 | port->port.drain_delay = 1; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2643 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2644 | return 0; |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2645 | err: |
| 2646 | kfree(edge_port); |
| 2647 | |
| 2648 | return ret; |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2649 | } |
| 2650 | |
| 2651 | static int edge_port_remove(struct usb_serial_port *port) |
| 2652 | { |
| 2653 | struct edgeport_port *edge_port; |
| 2654 | |
| 2655 | edge_port = usb_get_serial_port_data(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2656 | edge_remove_sysfs_attrs(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2657 | kfree(edge_port); |
| 2658 | |
| 2659 | return 0; |
| 2660 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2662 | /* Sysfs Attributes */ |
| 2663 | |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2664 | static ssize_t uart_mode_show(struct device *dev, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2665 | struct device_attribute *attr, char *buf) |
| 2666 | { |
| 2667 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2668 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2669 | |
| 2670 | return sprintf(buf, "%d\n", edge_port->bUartMode); |
| 2671 | } |
| 2672 | |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2673 | static ssize_t uart_mode_store(struct device *dev, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2674 | struct device_attribute *attr, const char *valbuf, size_t count) |
| 2675 | { |
| 2676 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2677 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2678 | unsigned int v = simple_strtoul(valbuf, NULL, 0); |
| 2679 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2680 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2681 | |
| 2682 | if (v < 256) |
| 2683 | edge_port->bUartMode = v; |
| 2684 | else |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2685 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2686 | |
| 2687 | return count; |
| 2688 | } |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2689 | static DEVICE_ATTR_RW(uart_mode); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2690 | |
| 2691 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) |
| 2692 | { |
| 2693 | return device_create_file(&port->dev, &dev_attr_uart_mode); |
| 2694 | } |
| 2695 | |
| 2696 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) |
| 2697 | { |
| 2698 | device_remove_file(&port->dev, &dev_attr_uart_mode); |
| 2699 | return 0; |
| 2700 | } |
| 2701 | |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2702 | #ifdef CONFIG_PM |
| 2703 | static int edge_suspend(struct usb_serial *serial, pm_message_t message) |
| 2704 | { |
| 2705 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
| 2706 | |
| 2707 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); |
| 2708 | |
| 2709 | return 0; |
| 2710 | } |
| 2711 | |
| 2712 | static int edge_resume(struct usb_serial *serial) |
| 2713 | { |
| 2714 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
| 2715 | |
| 2716 | edge_heartbeat_schedule(edge_serial); |
| 2717 | |
| 2718 | return 0; |
| 2719 | } |
| 2720 | #endif |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2721 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2722 | static struct usb_serial_driver edgeport_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2723 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2724 | .owner = THIS_MODULE, |
| 2725 | .name = "edgeport_ti_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2726 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2727 | .description = "Edgeport TI 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2728 | .id_table = edgeport_1port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2729 | .num_ports = 1, |
Johan Hovold | 8d9c4d9 | 2017-03-16 17:13:42 +0100 | [diff] [blame] | 2730 | .num_bulk_out = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2731 | .open = edge_open, |
| 2732 | .close = edge_close, |
| 2733 | .throttle = edge_throttle, |
| 2734 | .unthrottle = edge_unthrottle, |
| 2735 | .attach = edge_startup, |
Johan Hovold | 49f4ff2 | 2017-03-16 17:13:41 +0100 | [diff] [blame] | 2736 | .calc_num_ports = edge_calc_num_ports, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2737 | .disconnect = edge_disconnect, |
| 2738 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2739 | .port_probe = edge_port_probe, |
| 2740 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2741 | .ioctl = edge_ioctl, |
| 2742 | .set_termios = edge_set_termios, |
| 2743 | .tiocmget = edge_tiocmget, |
| 2744 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2745 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2746 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2747 | .write = edge_write, |
| 2748 | .write_room = edge_write_room, |
| 2749 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2750 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2751 | .break_ctl = edge_break, |
| 2752 | .read_int_callback = edge_interrupt_callback, |
| 2753 | .read_bulk_callback = edge_bulk_in_callback, |
| 2754 | .write_bulk_callback = edge_bulk_out_callback, |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2755 | #ifdef CONFIG_PM |
| 2756 | .suspend = edge_suspend, |
| 2757 | .resume = edge_resume, |
| 2758 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2759 | }; |
| 2760 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2761 | static struct usb_serial_driver edgeport_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2762 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2763 | .owner = THIS_MODULE, |
| 2764 | .name = "edgeport_ti_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2765 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2766 | .description = "Edgeport TI 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2767 | .id_table = edgeport_2port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2768 | .num_ports = 2, |
Johan Hovold | 8d9c4d9 | 2017-03-16 17:13:42 +0100 | [diff] [blame] | 2769 | .num_bulk_out = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2770 | .open = edge_open, |
| 2771 | .close = edge_close, |
| 2772 | .throttle = edge_throttle, |
| 2773 | .unthrottle = edge_unthrottle, |
| 2774 | .attach = edge_startup, |
Johan Hovold | 49f4ff2 | 2017-03-16 17:13:41 +0100 | [diff] [blame] | 2775 | .calc_num_ports = edge_calc_num_ports, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2776 | .disconnect = edge_disconnect, |
| 2777 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2778 | .port_probe = edge_port_probe, |
| 2779 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2780 | .ioctl = edge_ioctl, |
| 2781 | .set_termios = edge_set_termios, |
| 2782 | .tiocmget = edge_tiocmget, |
| 2783 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2784 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2785 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2786 | .write = edge_write, |
| 2787 | .write_room = edge_write_room, |
| 2788 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2789 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2790 | .break_ctl = edge_break, |
| 2791 | .read_int_callback = edge_interrupt_callback, |
| 2792 | .read_bulk_callback = edge_bulk_in_callback, |
| 2793 | .write_bulk_callback = edge_bulk_out_callback, |
Peter E. Berger | 26c78da | 2015-07-31 01:55:08 -0500 | [diff] [blame] | 2794 | #ifdef CONFIG_PM |
| 2795 | .suspend = edge_suspend, |
| 2796 | .resume = edge_resume, |
| 2797 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2798 | }; |
| 2799 | |
Alan Stern | 7dbe246 | 2012-02-23 14:56:57 -0500 | [diff] [blame] | 2800 | static struct usb_serial_driver * const serial_drivers[] = { |
| 2801 | &edgeport_1port_device, &edgeport_2port_device, NULL |
| 2802 | }; |
| 2803 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 2804 | module_usb_serial_driver(serial_drivers, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 2807 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2808 | MODULE_LICENSE("GPL"); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 2809 | MODULE_FIRMWARE("edgeport/down3.bin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2811 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
| 2812 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); |
| 2813 | |
| 2814 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2815 | MODULE_PARM_DESC(ignore_cpu_rev, |
| 2816 | "Ignore the cpu revision when connecting to a device"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2817 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2818 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
| 2819 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |