| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Host Controller Driver for the Elan Digital Systems U132 adapter |
| * |
| * Copyright(C) 2006 Elan Digital Systems Limited |
| * http://www.elandigitalsystems.com |
| * |
| * Author and Maintainer - Tony Olech - Elan Digital Systems |
| * tony.olech@elandigitalsystems.com |
| * |
| * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) |
| * based on various USB host drivers in the 2.6.15 linux kernel |
| * with constant reference to the 3rd Edition of Linux Device Drivers |
| * published by O'Reilly |
| * |
| * The U132 adapter is a USB to CardBus adapter specifically designed |
| * for PC cards that contain an OHCI host controller. Typical PC cards |
| * are the Orange Mobile 3G Option GlobeTrotter Fusion card. |
| * |
| * The U132 adapter will *NOT *work with PC cards that do not contain |
| * an OHCI controller. A simple way to test whether a PC card has an |
| * OHCI controller as an interface is to insert the PC card directly |
| * into a laptop(or desktop) with a CardBus slot and if "lspci" shows |
| * a new USB controller and "lsusb -v" shows a new OHCI Host Controller |
| * then there is a good chance that the U132 adapter will support the |
| * PC card.(you also need the specific client driver for the PC card) |
| * |
| * Please inform the Author and Maintainer about any PC cards that |
| * contain OHCI Host Controller and work when directly connected to |
| * an embedded CardBus slot but do not work when they are connected |
| * via an ELAN U132 adapter. |
| * |
| */ |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/delay.h> |
| #include <linux/ioport.h> |
| #include <linux/pci_ids.h> |
| #include <linux/sched.h> |
| #include <linux/slab.h> |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/timer.h> |
| #include <linux/list.h> |
| #include <linux/interrupt.h> |
| #include <linux/usb.h> |
| #include <linux/usb/hcd.h> |
| #include <linux/workqueue.h> |
| #include <linux/platform_device.h> |
| #include <linux/mutex.h> |
| #include <asm/io.h> |
| #include <asm/irq.h> |
| #include <asm/byteorder.h> |
| |
| /* FIXME ohci.h is ONLY for internal use by the OHCI driver. |
| * If you're going to try stuff like this, you need to split |
| * out shareable stuff (register declarations?) into its own |
| * file, maybe name <linux/usb/ohci.h> |
| */ |
| |
| #include "ohci.h" |
| #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR |
| #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ |
| OHCI_INTR_WDH) |
| MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
| MODULE_DESCRIPTION("U132 USB Host Controller Driver"); |
| MODULE_LICENSE("GPL"); |
| #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) |
| INT_MODULE_PARM(testing, 0); |
| /* Some boards misreport power switching/overcurrent*/ |
| static bool distrust_firmware = true; |
| module_param(distrust_firmware, bool, 0); |
| MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurrent" |
| "t setup"); |
| static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
| /* |
| * u132_module_lock exists to protect access to global variables |
| * |
| */ |
| static DEFINE_MUTEX(u132_module_lock); |
| static int u132_exiting; |
| static int u132_instances; |
| /* |
| * end of the global variables protected by u132_module_lock |
| */ |
| static struct workqueue_struct *workqueue; |
| #define MAX_U132_PORTS 7 |
| #define MAX_U132_ADDRS 128 |
| #define MAX_U132_UDEVS 4 |
| #define MAX_U132_ENDPS 100 |
| #define MAX_U132_RINGS 4 |
| static const char *cc_to_text[16] = { |
| "No Error ", |
| "CRC Error ", |
| "Bit Stuff ", |
| "Data Togg ", |
| "Stall ", |
| "DevNotResp ", |
| "PIDCheck ", |
| "UnExpPID ", |
| "DataOver ", |
| "DataUnder ", |
| "(for hw) ", |
| "(for hw) ", |
| "BufferOver ", |
| "BuffUnder ", |
| "(for HCD) ", |
| "(for HCD) " |
| }; |
| struct u132_port { |
| struct u132 *u132; |
| int reset; |
| int enable; |
| int power; |
| int Status; |
| }; |
| struct u132_addr { |
| u8 address; |
| }; |
| struct u132_udev { |
| struct kref kref; |
| struct usb_device *usb_device; |
| u8 enumeration; |
| u8 udev_number; |
| u8 usb_addr; |
| u8 portnumber; |
| u8 endp_number_in[16]; |
| u8 endp_number_out[16]; |
| }; |
| #define ENDP_QUEUE_SHIFT 3 |
| #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) |
| #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) |
| struct u132_urbq { |
| struct list_head urb_more; |
| struct urb *urb; |
| }; |
| struct u132_spin { |
| spinlock_t slock; |
| }; |
| struct u132_endp { |
| struct kref kref; |
| u8 udev_number; |
| u8 endp_number; |
| u8 usb_addr; |
| u8 usb_endp; |
| struct u132 *u132; |
| struct list_head endp_ring; |
| struct u132_ring *ring; |
| unsigned toggle_bits:2; |
| unsigned active:1; |
| unsigned delayed:1; |
| unsigned input:1; |
| unsigned output:1; |
| unsigned pipetype:2; |
| unsigned dequeueing:1; |
| unsigned edset_flush:1; |
| unsigned spare_bits:14; |
| unsigned long jiffies; |
| struct usb_host_endpoint *hep; |
| struct u132_spin queue_lock; |
| u16 queue_size; |
| u16 queue_last; |
| u16 queue_next; |
| struct urb *urb_list[ENDP_QUEUE_SIZE]; |
| struct list_head urb_more; |
| struct delayed_work scheduler; |
| }; |
| struct u132_ring { |
| unsigned in_use:1; |
| unsigned length:7; |
| u8 number; |
| struct u132 *u132; |
| struct u132_endp *curr_endp; |
| struct delayed_work scheduler; |
| }; |
| struct u132 { |
| struct kref kref; |
| struct mutex sw_lock; |
| struct mutex scheduler_lock; |
| struct u132_platform_data *board; |
| struct platform_device *platform_dev; |
| struct u132_ring ring[MAX_U132_RINGS]; |
| int sequence_num; |
| int going; |
| int power; |
| int reset; |
| int num_ports; |
| u32 hc_control; |
| u32 hc_fminterval; |
| u32 hc_roothub_status; |
| u32 hc_roothub_a; |
| u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; |
| int flags; |
| unsigned long next_statechange; |
| struct delayed_work monitor; |
| int num_endpoints; |
| struct u132_addr addr[MAX_U132_ADDRS]; |
| struct u132_udev udev[MAX_U132_UDEVS]; |
| struct u132_port port[MAX_U132_PORTS]; |
| struct u132_endp *endp[MAX_U132_ENDPS]; |
| }; |
| |
| /* |
| * these cannot be inlines because we need the structure offset!! |
| * Does anyone have a better way????? |
| */ |
| #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
| offsetof(struct ohci_regs, member), 0, data); |
| #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
| offsetof(struct ohci_regs, member), 0, data) |
| #define u132_read_pcimem(u132, member, data) \ |
| usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
| ohci_regs, member), 0, data) |
| #define u132_write_pcimem(u132, member, data) \ |
| usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
| ohci_regs, member), 0, data) |
| static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
| { |
| u8 udev_number = udev->udev_number; |
| return container_of(udev, struct u132, udev[udev_number]); |
| } |
| |
| static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) |
| { |
| return (struct u132 *)(hcd->hcd_priv); |
| } |
| |
| static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) |
| { |
| return container_of((void *)u132, struct usb_hcd, hcd_priv); |
| } |
| |
| static inline void u132_disable(struct u132 *u132) |
| { |
| u132_to_hcd(u132)->state = HC_STATE_HALT; |
| } |
| |
| |
| #define kref_to_u132(d) container_of(d, struct u132, kref) |
| #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) |
| #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) |
| #include "../misc/usb_u132.h" |
| static const char hcd_name[] = "u132_hcd"; |
| #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ |
| USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
| USB_PORT_STAT_C_RESET) << 16) |
| static void u132_hcd_delete(struct kref *kref) |
| { |
| struct u132 *u132 = kref_to_u132(kref); |
| struct platform_device *pdev = u132->platform_dev; |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| u132->going += 1; |
| mutex_lock(&u132_module_lock); |
| u132_instances -= 1; |
| mutex_unlock(&u132_module_lock); |
| dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" |
| "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); |
| usb_put_hcd(hcd); |
| } |
| |
| static inline void u132_u132_put_kref(struct u132 *u132) |
| { |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static inline void u132_u132_init_kref(struct u132 *u132) |
| { |
| kref_init(&u132->kref); |
| } |
| |
| static void u132_udev_delete(struct kref *kref) |
| { |
| struct u132_udev *udev = kref_to_u132_udev(kref); |
| udev->udev_number = 0; |
| udev->usb_device = NULL; |
| udev->usb_addr = 0; |
| udev->enumeration = 0; |
| } |
| |
| static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) |
| { |
| kref_put(&udev->kref, u132_udev_delete); |
| } |
| |
| static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) |
| { |
| kref_get(&udev->kref); |
| } |
| |
| static inline void u132_udev_init_kref(struct u132 *u132, |
| struct u132_udev *udev) |
| { |
| kref_init(&udev->kref); |
| } |
| |
| static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) |
| { |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, |
| unsigned int delta) |
| { |
| if (delta > 0) { |
| if (queue_delayed_work(workqueue, &ring->scheduler, delta)) |
| return; |
| } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) |
| return; |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, |
| unsigned int delta) |
| { |
| kref_get(&u132->kref); |
| u132_ring_requeue_work(u132, ring, delta); |
| } |
| |
| static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) |
| { |
| if (cancel_delayed_work(&ring->scheduler)) |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static void u132_endp_delete(struct kref *kref) |
| { |
| struct u132_endp *endp = kref_to_u132_endp(kref); |
| struct u132 *u132 = endp->u132; |
| u8 usb_addr = endp->usb_addr; |
| u8 usb_endp = endp->usb_endp; |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| u8 endp_number = endp->endp_number; |
| struct usb_host_endpoint *hep = endp->hep; |
| struct u132_ring *ring = endp->ring; |
| struct list_head *head = &endp->endp_ring; |
| ring->length -= 1; |
| if (endp == ring->curr_endp) { |
| if (list_empty(head)) { |
| ring->curr_endp = NULL; |
| list_del(head); |
| } else { |
| struct u132_endp *next_endp = list_entry(head->next, |
| struct u132_endp, endp_ring); |
| ring->curr_endp = next_endp; |
| list_del(head); |
| } |
| } else |
| list_del(head); |
| if (endp->input) { |
| udev->endp_number_in[usb_endp] = 0; |
| u132_udev_put_kref(u132, udev); |
| } |
| if (endp->output) { |
| udev->endp_number_out[usb_endp] = 0; |
| u132_udev_put_kref(u132, udev); |
| } |
| u132->endp[endp_number - 1] = NULL; |
| hep->hcpriv = NULL; |
| kfree(endp); |
| u132_u132_put_kref(u132); |
| } |
| |
| static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) |
| { |
| kref_put(&endp->kref, u132_endp_delete); |
| } |
| |
| static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) |
| { |
| kref_get(&endp->kref); |
| } |
| |
| static inline void u132_endp_init_kref(struct u132 *u132, |
| struct u132_endp *endp) |
| { |
| kref_init(&endp->kref); |
| kref_get(&u132->kref); |
| } |
| |
| static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, |
| unsigned int delta) |
| { |
| if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
| kref_get(&endp->kref); |
| } |
| |
| static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) |
| { |
| if (cancel_delayed_work(&endp->scheduler)) |
| kref_put(&endp->kref, u132_endp_delete); |
| } |
| |
| static inline void u132_monitor_put_kref(struct u132 *u132) |
| { |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) |
| { |
| if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
| kref_get(&u132->kref); |
| } |
| |
| static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) |
| { |
| if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static void u132_monitor_cancel_work(struct u132 *u132) |
| { |
| if (cancel_delayed_work(&u132->monitor)) |
| kref_put(&u132->kref, u132_hcd_delete); |
| } |
| |
| static int read_roothub_info(struct u132 *u132) |
| { |
| u32 revision; |
| int retval; |
| retval = u132_read_pcimem(u132, revision, &revision); |
| if (retval) { |
| dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| "ntrol\n", retval); |
| return retval; |
| } else if ((revision & 0xFF) == 0x10) { |
| } else if ((revision & 0xFF) == 0x11) { |
| } else { |
| dev_err(&u132->platform_dev->dev, "device revision is not valid" |
| " %08X\n", revision); |
| return -ENODEV; |
| } |
| retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| if (retval) { |
| dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| "ntrol\n", retval); |
| return retval; |
| } |
| retval = u132_read_pcimem(u132, roothub.status, |
| &u132->hc_roothub_status); |
| if (retval) { |
| dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| "g roothub.status\n", retval); |
| return retval; |
| } |
| retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); |
| if (retval) { |
| dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| "g roothub.a\n", retval); |
| return retval; |
| } |
| { |
| int I = u132->num_ports; |
| int i = 0; |
| while (I-- > 0) { |
| retval = u132_read_pcimem(u132, roothub.portstatus[i], |
| &u132->hc_roothub_portstatus[i]); |
| if (retval) { |
| dev_err(&u132->platform_dev->dev, "error %d acc" |
| "essing device roothub.portstatus[%d]\n" |
| , retval, i); |
| return retval; |
| } else |
| i += 1; |
| } |
| } |
| return 0; |
| } |
| |
| static void u132_hcd_monitor_work(struct work_struct *work) |
| { |
| struct u132 *u132 = container_of(work, struct u132, monitor.work); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| u132_monitor_put_kref(u132); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| u132_monitor_put_kref(u132); |
| return; |
| } else { |
| int retval; |
| mutex_lock(&u132->sw_lock); |
| retval = read_roothub_info(u132); |
| if (retval) { |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| u132_disable(u132); |
| u132->going = 1; |
| mutex_unlock(&u132->sw_lock); |
| usb_hc_died(hcd); |
| ftdi_elan_gone_away(u132->platform_dev); |
| u132_monitor_put_kref(u132); |
| return; |
| } else { |
| u132_monitor_requeue_work(u132, 500); |
| mutex_unlock(&u132->sw_lock); |
| return; |
| } |
| } |
| } |
| |
| static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, |
| struct urb *urb, int status) |
| { |
| struct u132_ring *ring; |
| unsigned long irqs; |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| urb->error_count = 0; |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| usb_hcd_unlink_urb_from_ep(hcd, urb); |
| endp->queue_next += 1; |
| if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| endp->active = 0; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| } else { |
| struct list_head *next = endp->urb_more.next; |
| struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| urb_more); |
| list_del(next); |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| urbq->urb; |
| endp->active = 0; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| kfree(urbq); |
| } |
| mutex_lock(&u132->scheduler_lock); |
| ring = endp->ring; |
| ring->in_use = 0; |
| u132_ring_cancel_work(u132, ring); |
| u132_ring_queue_work(u132, ring, 0); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| usb_hcd_giveback_urb(hcd, urb, status); |
| } |
| |
| static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, |
| struct urb *urb, int status) |
| { |
| u132_endp_put_kref(u132, endp); |
| } |
| |
| static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, |
| struct urb *urb, int status) |
| { |
| unsigned long irqs; |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| urb->error_count = 0; |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| usb_hcd_unlink_urb_from_ep(hcd, urb); |
| endp->queue_next += 1; |
| if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| endp->active = 0; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| } else { |
| struct list_head *next = endp->urb_more.next; |
| struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| urb_more); |
| list_del(next); |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| urbq->urb; |
| endp->active = 0; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| kfree(urbq); |
| } |
| usb_hcd_giveback_urb(hcd, urb, status); |
| } |
| |
| static inline int edset_input(struct u132 *u132, struct u132_ring *ring, |
| struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| int toggle_bits, int error_count, int condition_code, int repeat_number, |
| int halted, int skipped, int actual, int non_null)) |
| { |
| return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
| urb, address, endp->usb_endp, toggle_bits, callback); |
| } |
| |
| static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, |
| struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| int toggle_bits, int error_count, int condition_code, int repeat_number, |
| int halted, int skipped, int actual, int non_null)) |
| { |
| return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
| urb, address, endp->usb_endp, toggle_bits, callback); |
| } |
| |
| static inline int edset_single(struct u132 *u132, struct u132_ring *ring, |
| struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| int toggle_bits, int error_count, int condition_code, int repeat_number, |
| int halted, int skipped, int actual, int non_null)) |
| { |
| return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
| endp, urb, address, endp->usb_endp, toggle_bits, callback); |
| } |
| |
| static inline int edset_output(struct u132 *u132, struct u132_ring *ring, |
| struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| int toggle_bits, int error_count, int condition_code, int repeat_number, |
| int halted, int skipped, int actual, int non_null)) |
| { |
| return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
| endp, urb, address, endp->usb_endp, toggle_bits, callback); |
| } |
| |
| |
| /* |
| * must not LOCK sw_lock |
| * |
| */ |
| static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| struct u132_ring *ring = endp->ring; |
| u8 *u = urb->transfer_buffer + urb->actual_length; |
| u8 *b = buf; |
| int L = len; |
| |
| while (L-- > 0) |
| *u++ = *b++; |
| |
| urb->actual_length += len; |
| if ((condition_code == TD_CC_NOERROR) && |
| (urb->transfer_buffer_length > urb->actual_length)) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| if (urb->actual_length > 0) { |
| int retval; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_single(u132, ring, endp, urb, |
| address, endp->toggle_bits, |
| u132_hcd_interrupt_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, |
| retval); |
| } else { |
| ring->in_use = 0; |
| endp->active = 0; |
| endp->jiffies = jiffies + |
| msecs_to_jiffies(urb->interval); |
| u132_ring_cancel_work(u132, ring); |
| u132_ring_queue_work(u132, ring, 0); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| } |
| return; |
| } else if ((condition_code == TD_DATAUNDERRUN) && |
| ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else { |
| if (condition_code == TD_CC_NOERROR) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, |
| 0, 1 & toggle_bits); |
| } else if (condition_code == TD_CC_STALL) { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, endp->usb_endp, |
| 0, 0); |
| } else { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, endp->usb_endp, |
| 0, 0); |
| dev_err(&u132->platform_dev->dev, "urb=%p givin" |
| "g back INTERRUPT %s\n", urb, |
| cc_to_text[condition_code]); |
| } |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| struct u132_ring *ring = endp->ring; |
| urb->actual_length += len; |
| endp->toggle_bits = toggle_bits; |
| if (urb->transfer_buffer_length > urb->actual_length) { |
| int retval; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_output(u132, ring, endp, urb, address, |
| endp->toggle_bits, u132_hcd_bulk_output_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| struct u132_ring *ring = endp->ring; |
| u8 *u = urb->transfer_buffer + urb->actual_length; |
| u8 *b = buf; |
| int L = len; |
| |
| while (L-- > 0) |
| *u++ = *b++; |
| |
| urb->actual_length += len; |
| if ((condition_code == TD_CC_NOERROR) && |
| (urb->transfer_buffer_length > urb->actual_length)) { |
| int retval; |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| ring->number, endp, urb, address, |
| endp->usb_endp, endp->toggle_bits, |
| u132_hcd_bulk_input_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else if (condition_code == TD_CC_NOERROR) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } else if ((condition_code == TD_DATAUNDERRUN) && |
| ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else if (condition_code == TD_DATAUNDERRUN) { |
| endp->toggle_bits = toggle_bits; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 1 & toggle_bits); |
| dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" |
| ") giving back BULK IN %s\n", urb, |
| cc_to_text[condition_code]); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else if (condition_code == TD_CC_STALL) { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } else { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
| dev_err(&u132->platform_dev->dev, "urb=%p giving back B" |
| "ULK IN code=%d %s\n", urb, condition_code, |
| cc_to_text[condition_code]); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| struct u132_ring *ring = endp->ring; |
| u8 *u = urb->transfer_buffer; |
| u8 *b = buf; |
| int L = len; |
| |
| while (L-- > 0) |
| *u++ = *b++; |
| |
| urb->actual_length = len; |
| if ((condition_code == TD_CC_NOERROR) || ((condition_code == |
| TD_DATAUNDERRUN) && ((urb->transfer_flags & |
| URB_SHORT_NOT_OK) == 0))) { |
| int retval; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| ring->number, endp, urb, address, |
| endp->usb_endp, 0x3, |
| u132_hcd_configure_empty_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else if (condition_code == TD_CC_STALL) { |
| mutex_unlock(&u132->scheduler_lock); |
| dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
| "NPUT STALL urb %p\n", urb); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } else { |
| mutex_unlock(&u132->scheduler_lock); |
| dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
| "PUT %s urb %p\n", cc_to_text[condition_code], |
| urb); |
| u132_hcd_giveback_urb(u132, endp, urb, |
| cc_to_error[condition_code]); |
| return; |
| } |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| if (usb_pipein(urb->pipe)) { |
| int retval; |
| struct u132_ring *ring = endp->ring; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| ring->number, endp, urb, address, |
| endp->usb_endp, 0, |
| u132_hcd_configure_input_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| int retval; |
| struct u132_ring *ring = endp->ring; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| ring->number, endp, urb, address, |
| endp->usb_endp, 0, |
| u132_hcd_configure_empty_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, |
| u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| u132->addr[0].address = 0; |
| endp->usb_addr = udev->usb_addr; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, |
| u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| int retval; |
| struct u132_ring *ring = endp->ring; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| ring->number, endp, urb, 0, endp->usb_endp, 0, |
| u132_hcd_enumeration_empty_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| int retval; |
| struct u132_ring *ring = endp->ring; |
| u8 *u = urb->transfer_buffer; |
| u8 *b = buf; |
| int L = len; |
| |
| while (L-- > 0) |
| *u++ = *b++; |
| |
| urb->actual_length = len; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| ring->number, endp, urb, address, endp->usb_endp, 0x3, |
| u132_hcd_initial_empty_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, |
| int len, int toggle_bits, int error_count, int condition_code, |
| int repeat_number, int halted, int skipped, int actual, int non_null) |
| { |
| struct u132_endp *endp = data; |
| struct u132 *u132 = endp->u132; |
| u8 address = u132->addr[endp->usb_addr].address; |
| mutex_lock(&u132->scheduler_lock); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (endp->dequeueing) { |
| endp->dequeueing = 0; |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| return; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| return; |
| } else if (!urb->unlinked) { |
| int retval; |
| struct u132_ring *ring = endp->ring; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| ring->number, endp, urb, address, endp->usb_endp, 0, |
| u132_hcd_initial_input_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| "unlinked=%d\n", urb, urb->unlinked); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_hcd_giveback_urb(u132, endp, urb, 0); |
| return; |
| } |
| } |
| |
| /* |
| * this work function is only executed from the work queue |
| * |
| */ |
| static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
| { |
| struct u132_ring *ring = |
| container_of(work, struct u132_ring, scheduler.work); |
| struct u132 *u132 = ring->u132; |
| mutex_lock(&u132->scheduler_lock); |
| if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_ring_put_kref(u132, ring); |
| return; |
| } else if (ring->curr_endp) { |
| struct u132_endp *endp, *last_endp = ring->curr_endp; |
| unsigned long wakeup = 0; |
| list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) { |
| if (endp->queue_next == endp->queue_last) { |
| } else if ((endp->delayed == 0) |
| || time_after_eq(jiffies, endp->jiffies)) { |
| ring->curr_endp = endp; |
| u132_endp_cancel_work(u132, last_endp); |
| u132_endp_queue_work(u132, last_endp, 0); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_ring_put_kref(u132, ring); |
| return; |
| } else { |
| unsigned long delta = endp->jiffies - jiffies; |
| if (delta > wakeup) |
| wakeup = delta; |
| } |
| } |
| if (last_endp->queue_next == last_endp->queue_last) { |
| } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, |
| last_endp->jiffies)) { |
| u132_endp_cancel_work(u132, last_endp); |
| u132_endp_queue_work(u132, last_endp, 0); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_ring_put_kref(u132, ring); |
| return; |
| } else { |
| unsigned long delta = last_endp->jiffies - jiffies; |
| if (delta > wakeup) |
| wakeup = delta; |
| } |
| if (wakeup > 0) { |
| u132_ring_requeue_work(u132, ring, wakeup); |
| mutex_unlock(&u132->scheduler_lock); |
| return; |
| } else { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_ring_put_kref(u132, ring); |
| return; |
| } |
| } else { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_ring_put_kref(u132, ring); |
| return; |
| } |
| } |
| |
| static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
| { |
| struct u132_ring *ring; |
| struct u132_endp *endp = |
| container_of(work, struct u132_endp, scheduler.work); |
| struct u132 *u132 = endp->u132; |
| mutex_lock(&u132->scheduler_lock); |
| ring = endp->ring; |
| if (endp->edset_flush) { |
| endp->edset_flush = 0; |
| if (endp->dequeueing) |
| usb_ftdi_elan_edset_flush(u132->platform_dev, |
| ring->number, endp); |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else if (endp->active) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else if (endp->queue_next == endp->queue_last) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else if (endp->pipetype == PIPE_INTERRUPT) { |
| u8 address = u132->addr[endp->usb_addr].address; |
| if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else { |
| int retval; |
| struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_next]; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_single(u132, ring, endp, urb, address, |
| endp->toggle_bits, u132_hcd_interrupt_recv); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } |
| } else if (endp->pipetype == PIPE_CONTROL) { |
| u8 address = u132->addr[endp->usb_addr].address; |
| if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else if (address == 0) { |
| int retval; |
| struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_next]; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_setup(u132, ring, endp, urb, address, |
| 0x2, u132_hcd_initial_setup_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else if (endp->usb_addr == 0) { |
| int retval; |
| struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_next]; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
| u132_hcd_enumeration_address_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } else { |
| int retval; |
| struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_next]; |
| address = u132->addr[endp->usb_addr].address; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_setup(u132, ring, endp, urb, address, |
| 0x2, u132_hcd_configure_setup_sent); |
| if (retval != 0) |
| u132_hcd_giveback_urb(u132, endp, urb, retval); |
| return; |
| } |
| } else { |
| if (endp->input) { |
| u8 address = u132->addr[endp->usb_addr].address; |
| if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else { |
| int retval; |
| struct urb *urb = endp->urb_list[ |
| ENDP_QUEUE_MASK & endp->queue_next]; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_input(u132, ring, endp, urb, |
| address, endp->toggle_bits, |
| u132_hcd_bulk_input_recv); |
| if (retval == 0) { |
| } else |
| u132_hcd_giveback_urb(u132, endp, urb, |
| retval); |
| return; |
| } |
| } else { /* output pipe */ |
| u8 address = u132->addr[endp->usb_addr].address; |
| if (ring->in_use) { |
| mutex_unlock(&u132->scheduler_lock); |
| u132_endp_put_kref(u132, endp); |
| return; |
| } else { |
| int retval; |
| struct urb *urb = endp->urb_list[ |
| ENDP_QUEUE_MASK & endp->queue_next]; |
| endp->active = 1; |
| ring->curr_endp = endp; |
| ring->in_use = 1; |
| mutex_unlock(&u132->scheduler_lock); |
| retval = edset_output(u132, ring, endp, urb, |
| address, endp->toggle_bits, |
| u132_hcd_bulk_output_sent); |
| if (retval == 0) { |
| } else |
| u132_hcd_giveback_urb(u132, endp, urb, |
| retval); |
| return; |
| } |
| } |
| } |
| } |
| #ifdef CONFIG_PM |
| |
| static void port_power(struct u132 *u132, int pn, int is_on) |
| { |
| u132->port[pn].power = is_on; |
| } |
| |
| #endif |
| |
| static void u132_power(struct u132 *u132, int is_on) |
| { |
| struct usb_hcd *hcd = u132_to_hcd(u132) |
| ; /* hub is inactive unless the port is powered */ |
| if (is_on) { |
| if (u132->power) |
| return; |
| u132->power = 1; |
| } else { |
| u132->power = 0; |
| hcd->state = HC_STATE_HALT; |
| } |
| } |
| |
| static int u132_periodic_reinit(struct u132 *u132) |
| { |
| int retval; |
| u32 fi = u132->hc_fminterval & 0x03fff; |
| u32 fit; |
| u32 fminterval; |
| retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| if (retval) |
| return retval; |
| fit = fminterval & FIT; |
| retval = u132_write_pcimem(u132, fminterval, |
| (fit ^ FIT) | u132->hc_fminterval); |
| if (retval) |
| return retval; |
| return u132_write_pcimem(u132, periodicstart, |
| ((9 * fi) / 10) & 0x3fff); |
| } |
| |
| static char *hcfs2string(int state) |
| { |
| switch (state) { |
| case OHCI_USB_RESET: |
| return "reset"; |
| case OHCI_USB_RESUME: |
| return "resume"; |
| case OHCI_USB_OPER: |
| return "operational"; |
| case OHCI_USB_SUSPEND: |
| return "suspend"; |
| } |
| return "?"; |
| } |
| |
| static int u132_init(struct u132 *u132) |
| { |
| int retval; |
| u32 control; |
| u132_disable(u132); |
| u132->next_statechange = jiffies; |
| retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| if (u132->num_ports == 0) { |
| u32 rh_a = -1; |
| retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| if (retval) |
| return retval; |
| u132->num_ports = rh_a & RH_A_NDP; |
| retval = read_roothub_info(u132); |
| if (retval) |
| return retval; |
| } |
| if (u132->num_ports > MAX_U132_PORTS) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| |
| /* Start an OHCI controller, set the BUS operational |
| * resets USB and controller |
| * enable interrupts |
| */ |
| static int u132_run(struct u132 *u132) |
| { |
| int retval; |
| u32 control; |
| u32 status; |
| u32 fminterval; |
| u32 periodicstart; |
| u32 cmdstatus; |
| u32 roothub_a; |
| int mask = OHCI_INTR_INIT; |
| int first = u132->hc_fminterval == 0; |
| int sleep_time = 0; |
| int reset_timeout = 30; /* ... allow extra time */ |
| u132_disable(u132); |
| if (first) { |
| u32 temp; |
| retval = u132_read_pcimem(u132, fminterval, &temp); |
| if (retval) |
| return retval; |
| u132->hc_fminterval = temp & 0x3fff; |
| u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; |
| } |
| retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| if (retval) |
| return retval; |
| dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " |
| "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), |
| u132->hc_control); |
| switch (u132->hc_control & OHCI_CTRL_HCFS) { |
| case OHCI_USB_OPER: |
| sleep_time = 0; |
| break; |
| case OHCI_USB_SUSPEND: |
| case OHCI_USB_RESUME: |
| u132->hc_control &= OHCI_CTRL_RWC; |
| u132->hc_control |= OHCI_USB_RESUME; |
| sleep_time = 10; |
| break; |
| default: |
| u132->hc_control &= OHCI_CTRL_RWC; |
| u132->hc_control |= OHCI_USB_RESET; |
| sleep_time = 50; |
| break; |
| } |
| retval = u132_write_pcimem(u132, control, u132->hc_control); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| msleep(sleep_time); |
| retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| if (retval) |
| return retval; |
| if (!(roothub_a & RH_A_NPS)) { |
| int temp; /* power down each port */ |
| for (temp = 0; temp < u132->num_ports; temp++) { |
| retval = u132_write_pcimem(u132, |
| roothub.portstatus[temp], RH_PS_LSDA); |
| if (retval) |
| return retval; |
| } |
| } |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| retry: |
| retval = u132_read_pcimem(u132, cmdstatus, &status); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); |
| if (retval) |
| return retval; |
| extra: { |
| retval = u132_read_pcimem(u132, cmdstatus, &status); |
| if (retval) |
| return retval; |
| if (0 != (status & OHCI_HCR)) { |
| if (--reset_timeout == 0) { |
| dev_err(&u132->platform_dev->dev, "USB HC reset" |
| " timed out!\n"); |
| return -ENODEV; |
| } else { |
| msleep(5); |
| goto extra; |
| } |
| } |
| } |
| if (u132->flags & OHCI_QUIRK_INITRESET) { |
| retval = u132_write_pcimem(u132, control, u132->hc_control); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| } |
| retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, hcca, 0x00000000); |
| if (retval) |
| return retval; |
| retval = u132_periodic_reinit(u132); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, periodicstart, &periodicstart); |
| if (retval) |
| return retval; |
| if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { |
| if (!(u132->flags & OHCI_QUIRK_INITRESET)) { |
| u132->flags |= OHCI_QUIRK_INITRESET; |
| goto retry; |
| } else |
| dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" |
| "\n", fminterval, periodicstart); |
| } /* start controller operations */ |
| u132->hc_control &= OHCI_CTRL_RWC; |
| u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; |
| retval = u132_write_pcimem(u132, control, u132->hc_control); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, intrstatus, mask); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, intrdisable, |
| OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | |
| OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | |
| OHCI_INTR_SO); |
| if (retval) |
| return retval; /* handle root hub init quirks ... */ |
| retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| if (retval) |
| return retval; |
| roothub_a &= ~(RH_A_PSM | RH_A_OCPM); |
| if (u132->flags & OHCI_QUIRK_SUPERIO) { |
| roothub_a |= RH_A_NOCP; |
| roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); |
| retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| if (retval) |
| return retval; |
| } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { |
| roothub_a |= RH_A_NPS; |
| retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| if (retval) |
| return retval; |
| } |
| retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); |
| if (retval) |
| return retval; |
| retval = u132_write_pcimem(u132, roothub.b, |
| (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); |
| if (retval) |
| return retval; |
| retval = u132_read_pcimem(u132, control, &control); |
| if (retval) |
| return retval; |
| mdelay((roothub_a >> 23) & 0x1fe); |
| u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| return 0; |
| } |
| |
| static void u132_hcd_stop(struct usb_hcd *hcd) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" |
| "een removed %d\n", u132, hcd, u132->going); |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
| "ed\n", hcd); |
| } else { |
| mutex_lock(&u132->sw_lock); |
| msleep(100); |
| u132_power(u132, 0); |
| mutex_unlock(&u132->sw_lock); |
| } |
| } |
| |
| static int u132_hcd_start(struct usb_hcd *hcd) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| return -ENODEV; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| return -ESHUTDOWN; |
| } else if (hcd->self.controller) { |
| int retval; |
| struct platform_device *pdev = |
| to_platform_device(hcd->self.controller); |
| u16 vendor = ((struct u132_platform_data *) |
| dev_get_platdata(&pdev->dev))->vendor; |
| u16 device = ((struct u132_platform_data *) |
| dev_get_platdata(&pdev->dev))->device; |
| mutex_lock(&u132->sw_lock); |
| msleep(10); |
| if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { |
| u132->flags = OHCI_QUIRK_AMD756; |
| } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { |
| dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" |
| "ounds unavailable\n"); |
| } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) |
| u132->flags |= OHCI_QUIRK_ZFMICRO; |
| retval = u132_run(u132); |
| if (retval) { |
| u132_disable(u132); |
| u132->going = 1; |
| } |
| msleep(100); |
| mutex_unlock(&u132->sw_lock); |
| return retval; |
| } else { |
| dev_err(&u132->platform_dev->dev, "platform_device missing\n"); |
| return -ENODEV; |
| } |
| } |
| |
| static int u132_hcd_reset(struct usb_hcd *hcd) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| return -ENODEV; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| return -ESHUTDOWN; |
| } else { |
| int retval; |
| mutex_lock(&u132->sw_lock); |
| retval = u132_init(u132); |
| if (retval) { |
| u132_disable(u132); |
| u132->going = 1; |
| } |
| mutex_unlock(&u132->sw_lock); |
| return retval; |
| } |
| } |
| |
| static int create_endpoint_and_queue_int(struct u132 *u132, |
| struct u132_udev *udev, struct urb *urb, |
| struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| gfp_t mem_flags) |
| { |
| struct u132_ring *ring; |
| unsigned long irqs; |
| int rc; |
| u8 endp_number; |
| struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| |
| if (!endp) |
| return -ENOMEM; |
| |
| spin_lock_init(&endp->queue_lock.slock); |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| if (rc) { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| kfree(endp); |
| return rc; |
| } |
| |
| endp_number = ++u132->num_endpoints; |
| urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| INIT_LIST_HEAD(&endp->urb_more); |
| ring = endp->ring = &u132->ring[0]; |
| if (ring->curr_endp) { |
| list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| } else { |
| INIT_LIST_HEAD(&endp->endp_ring); |
| ring->curr_endp = endp; |
| } |
| ring->length += 1; |
| endp->dequeueing = 0; |
| endp->edset_flush = 0; |
| endp->active = 0; |
| endp->delayed = 0; |
| endp->endp_number = endp_number; |
| endp->u132 = u132; |
| endp->hep = urb->ep; |
| endp->pipetype = usb_pipetype(urb->pipe); |
| u132_endp_init_kref(u132, endp); |
| if (usb_pipein(urb->pipe)) { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| endp->input = 1; |
| endp->output = 0; |
| udev->endp_number_in[usb_endp] = endp_number; |
| u132_udev_get_kref(u132, udev); |
| } else { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| endp->input = 0; |
| endp->output = 1; |
| udev->endp_number_out[usb_endp] = endp_number; |
| u132_udev_get_kref(u132, udev); |
| } |
| urb->hcpriv = u132; |
| endp->delayed = 1; |
| endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| endp->udev_number = address; |
| endp->usb_addr = usb_addr; |
| endp->usb_endp = usb_endp; |
| endp->queue_size = 1; |
| endp->queue_last = 0; |
| endp->queue_next = 0; |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); |
| return 0; |
| } |
| |
| static int queue_int_on_old_endpoint(struct u132 *u132, |
| struct u132_udev *udev, struct urb *urb, |
| struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| u8 usb_endp, u8 address) |
| { |
| urb->hcpriv = u132; |
| endp->delayed = 1; |
| endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| } else { |
| struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| GFP_ATOMIC); |
| if (urbq == NULL) { |
| endp->queue_size -= 1; |
| return -ENOMEM; |
| } else { |
| list_add_tail(&urbq->urb_more, &endp->urb_more); |
| urbq->urb = urb; |
| } |
| } |
| return 0; |
| } |
| |
| static int create_endpoint_and_queue_bulk(struct u132 *u132, |
| struct u132_udev *udev, struct urb *urb, |
| struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| gfp_t mem_flags) |
| { |
| int ring_number; |
| struct u132_ring *ring; |
| unsigned long irqs; |
| int rc; |
| u8 endp_number; |
| struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| |
| if (!endp) |
| return -ENOMEM; |
| |
| spin_lock_init(&endp->queue_lock.slock); |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| if (rc) { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| kfree(endp); |
| return rc; |
| } |
| |
| endp_number = ++u132->num_endpoints; |
| urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| INIT_LIST_HEAD(&endp->urb_more); |
| endp->dequeueing = 0; |
| endp->edset_flush = 0; |
| endp->active = 0; |
| endp->delayed = 0; |
| endp->endp_number = endp_number; |
| endp->u132 = u132; |
| endp->hep = urb->ep; |
| endp->pipetype = usb_pipetype(urb->pipe); |
| u132_endp_init_kref(u132, endp); |
| if (usb_pipein(urb->pipe)) { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| ring_number = 3; |
| endp->input = 1; |
| endp->output = 0; |
| udev->endp_number_in[usb_endp] = endp_number; |
| u132_udev_get_kref(u132, udev); |
| } else { |
| endp->toggle_bits = 0x2; |
| usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| ring_number = 2; |
| endp->input = 0; |
| endp->output = 1; |
| udev->endp_number_out[usb_endp] = endp_number; |
| u132_udev_get_kref(u132, udev); |
| } |
| ring = endp->ring = &u132->ring[ring_number - 1]; |
| if (ring->curr_endp) { |
| list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| } else { |
| INIT_LIST_HEAD(&endp->endp_ring); |
| ring->curr_endp = endp; |
| } |
| ring->length += 1; |
| urb->hcpriv = u132; |
| endp->udev_number = address; |
| endp->usb_addr = usb_addr; |
| endp->usb_endp = usb_endp; |
| endp->queue_size = 1; |
| endp->queue_last = 0; |
| endp->queue_next = 0; |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| u132_endp_queue_work(u132, endp, 0); |
| return 0; |
| } |
| |
| static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, |
| struct urb *urb, |
| struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| u8 usb_endp, u8 address) |
| { |
| urb->hcpriv = u132; |
| if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| } else { |
| struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| GFP_ATOMIC); |
| if (urbq == NULL) { |
| endp->queue_size -= 1; |
| return -ENOMEM; |
| } else { |
| list_add_tail(&urbq->urb_more, &endp->urb_more); |
| urbq->urb = urb; |
| } |
| } |
| return 0; |
| } |
| |
| static int create_endpoint_and_queue_control(struct u132 *u132, |
| struct urb *urb, |
| struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
| gfp_t mem_flags) |
| { |
| struct u132_ring *ring; |
| unsigned long irqs; |
| int rc; |
| u8 endp_number; |
| struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| |
| if (!endp) |
| return -ENOMEM; |
| |
| spin_lock_init(&endp->queue_lock.slock); |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| if (rc) { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| kfree(endp); |
| return rc; |
| } |
| |
| endp_number = ++u132->num_endpoints; |
| urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| INIT_LIST_HEAD(&endp->urb_more); |
| ring = endp->ring = &u132->ring[0]; |
| if (ring->curr_endp) { |
| list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| } else { |
| INIT_LIST_HEAD(&endp->endp_ring); |
| ring->curr_endp = endp; |
| } |
| ring->length += 1; |
| endp->dequeueing = 0; |
| endp->edset_flush = 0; |
| endp->active = 0; |
| endp->delayed = 0; |
| endp->endp_number = endp_number; |
| endp->u132 = u132; |
| endp->hep = urb->ep; |
| u132_endp_init_kref(u132, endp); |
| u132_endp_get_kref(u132, endp); |
| if (usb_addr == 0) { |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| endp->udev_number = address; |
| endp->usb_addr = usb_addr; |
| endp->usb_endp = usb_endp; |
| endp->input = 1; |
| endp->output = 1; |
| endp->pipetype = usb_pipetype(urb->pipe); |
| u132_udev_init_kref(u132, udev); |
| u132_udev_get_kref(u132, udev); |
| udev->endp_number_in[usb_endp] = endp_number; |
| udev->endp_number_out[usb_endp] = endp_number; |
| urb->hcpriv = u132; |
| endp->queue_size = 1; |
| endp->queue_last = 0; |
| endp->queue_next = 0; |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| u132_endp_queue_work(u132, endp, 0); |
| return 0; |
| } else { /*(usb_addr > 0) */ |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| endp->udev_number = address; |
| endp->usb_addr = usb_addr; |
| endp->usb_endp = usb_endp; |
| endp->input = 1; |
| endp->output = 1; |
| endp->pipetype = usb_pipetype(urb->pipe); |
| u132_udev_get_kref(u132, udev); |
| udev->enumeration = 2; |
| udev->endp_number_in[usb_endp] = endp_number; |
| udev->endp_number_out[usb_endp] = endp_number; |
| urb->hcpriv = u132; |
| endp->queue_size = 1; |
| endp->queue_last = 0; |
| endp->queue_next = 0; |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| u132_endp_queue_work(u132, endp, 0); |
| return 0; |
| } |
| } |
| |
| static int queue_control_on_old_endpoint(struct u132 *u132, |
| struct urb *urb, |
| struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| u8 usb_endp) |
| { |
| if (usb_addr == 0) { |
| if (usb_pipein(urb->pipe)) { |
| urb->hcpriv = u132; |
| if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_last++] = urb; |
| } else { |
| struct u132_urbq *urbq = |
| kmalloc(sizeof(struct u132_urbq), |
| GFP_ATOMIC); |
| if (urbq == NULL) { |
| endp->queue_size -= 1; |
| return -ENOMEM; |
| } else { |
| list_add_tail(&urbq->urb_more, |
| &endp->urb_more); |
| urbq->urb = urb; |
| } |
| } |
| return 0; |
| } else { /* usb_pipeout(urb->pipe) */ |
| struct u132_addr *addr = &u132->addr[usb_dev->devnum]; |
| int I = MAX_U132_UDEVS; |
| int i = 0; |
| while (--I > 0) { |
| struct u132_udev *udev = &u132->udev[++i]; |
| if (udev->usb_device) { |
| continue; |
| } else { |
| udev->enumeration = 1; |
| u132->addr[0].address = i; |
| endp->udev_number = i; |
| udev->udev_number = i; |
| udev->usb_addr = usb_dev->devnum; |
| u132_udev_init_kref(u132, udev); |
| udev->endp_number_in[usb_endp] = |
| endp->endp_number; |
| u132_udev_get_kref(u132, udev); |
| udev->endp_number_out[usb_endp] = |
| endp->endp_number; |
| udev->usb_device = usb_dev; |
| ((u8 *) (urb->setup_packet))[2] = |
| addr->address = i; |
| u132_udev_get_kref(u132, udev); |
| break; |
| } |
| } |
| if (I == 0) { |
| dev_err(&u132->platform_dev->dev, "run out of d" |
| "evice space\n"); |
| return -EINVAL; |
| } |
| urb->hcpriv = u132; |
| if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| endp->urb_list[ENDP_QUEUE_MASK & |
| endp->queue_last++] = urb; |
| } else { |
| struct u132_urbq *urbq = |
| kmalloc(sizeof(struct u132_urbq), |
| GFP_ATOMIC); |
| if (urbq == NULL) { |
| endp->queue_size -= 1; |
| return -ENOMEM; |
| } else { |
| list_add_tail(&urbq->urb_more, |
| &endp->urb_more); |
| urbq->urb = urb; |
| } |
| } |
| return 0; |
| } |
| } else { /*(usb_addr > 0) */ |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| urb->hcpriv = u132; |
| if (udev->enumeration != 2) |
| udev->enumeration = 2; |
| if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| urb; |
| } else { |
| struct u132_urbq *urbq = |
| kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); |
| if (urbq == NULL) { |
| endp->queue_size -= 1; |
| return -ENOMEM; |
| } else { |
| list_add_tail(&urbq->urb_more, &endp->urb_more); |
| urbq->urb = urb; |
| } |
| } |
| return 0; |
| } |
| } |
| |
| static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
| gfp_t mem_flags) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (irqs_disabled()) { |
| if (gfpflags_allow_blocking(mem_flags)) { |
| printk(KERN_ERR "invalid context for function that might sleep\n"); |
| return -EINVAL; |
| } |
| } |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| return -ENODEV; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed " |
| "urb=%p\n", urb); |
| return -ESHUTDOWN; |
| } else { |
| u8 usb_addr = usb_pipedevice(urb->pipe); |
| u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| struct usb_device *usb_dev = urb->dev; |
| if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| struct u132_endp *endp = urb->ep->hcpriv; |
| urb->actual_length = 0; |
| if (endp) { |
| unsigned long irqs; |
| int retval; |
| spin_lock_irqsave(&endp->queue_lock.slock, |
| irqs); |
| retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| if (retval == 0) { |
| retval = queue_int_on_old_endpoint( |
| u132, udev, urb, |
| usb_dev, endp, |
| usb_addr, usb_endp, |
| address); |
| if (retval) |
| usb_hcd_unlink_urb_from_ep( |
| hcd, urb); |
| } |
| spin_unlock_irqrestore(&endp->queue_lock.slock, |
| irqs); |
| if (retval) { |
| return retval; |
| } else { |
| u132_endp_queue_work(u132, endp, |
| msecs_to_jiffies(urb->interval)) |
| ; |
| return 0; |
| } |
| } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| return -EINVAL; |
| } else { /*(endp == NULL) */ |
| return create_endpoint_and_queue_int(u132, udev, |
| urb, usb_dev, usb_addr, |
| usb_endp, address, mem_flags); |
| } |
| } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { |
| dev_err(&u132->platform_dev->dev, "the hardware does no" |
| "t support PIPE_ISOCHRONOUS\n"); |
| return -EINVAL; |
| } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| struct u132_endp *endp = urb->ep->hcpriv; |
| urb->actual_length = 0; |
| if (endp) { |
| unsigned long irqs; |
| int retval; |
| spin_lock_irqsave(&endp->queue_lock.slock, |
| irqs); |
| retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| if (retval == 0) { |
| retval = queue_bulk_on_old_endpoint( |
| u132, udev, urb, |
| usb_dev, endp, |
| usb_addr, usb_endp, |
| address); |
| if (retval) |
| usb_hcd_unlink_urb_from_ep( |
| hcd, urb); |
| } |
| spin_unlock_irqrestore(&endp->queue_lock.slock, |
| irqs); |
| if (retval) { |
| return retval; |
| } else { |
| u132_endp_queue_work(u132, endp, 0); |
| return 0; |
| } |
| } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| return -EINVAL; |
| } else |
| return create_endpoint_and_queue_bulk(u132, |
| udev, urb, usb_dev, usb_addr, |
| usb_endp, address, mem_flags); |
| } else { |
| struct u132_endp *endp = urb->ep->hcpriv; |
| u16 urb_size = 8; |
| u8 *b = urb->setup_packet; |
| int i = 0; |
| char data[30 * 3 + 4]; |
| char *d = data; |
| int m = (sizeof(data) - 1) / 3; |
| int l = 0; |
| data[0] = 0; |
| while (urb_size-- > 0) { |
| if (i > m) { |
| } else if (i++ < m) { |
| int w = sprintf(d, " %02X", *b++); |
| d += w; |
| l += w; |
| } else |
| d += sprintf(d, " .."); |
| } |
| if (endp) { |
| unsigned long irqs; |
| int retval; |
| spin_lock_irqsave(&endp->queue_lock.slock, |
| irqs); |
| retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| if (retval == 0) { |
| retval = queue_control_on_old_endpoint( |
| u132, urb, usb_dev, |
| endp, usb_addr, |
| usb_endp); |
| if (retval) |
| usb_hcd_unlink_urb_from_ep( |
| hcd, urb); |
| } |
| spin_unlock_irqrestore(&endp->queue_lock.slock, |
| irqs); |
| if (retval) { |
| return retval; |
| } else { |
| u132_endp_queue_work(u132, endp, 0); |
| return 0; |
| } |
| } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| return -EINVAL; |
| } else |
| return create_endpoint_and_queue_control(u132, |
| urb, usb_dev, usb_addr, usb_endp, |
| mem_flags); |
| } |
| } |
| } |
| |
| static int dequeue_from_overflow_chain(struct u132 *u132, |
| struct u132_endp *endp, struct urb *urb) |
| { |
| struct u132_urbq *urbq; |
| |
| list_for_each_entry(urbq, &endp->urb_more, urb_more) { |
| if (urbq->urb == urb) { |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| list_del(&urbq->urb_more); |
| endp->queue_size -= 1; |
| urb->error_count = 0; |
| usb_hcd_giveback_urb(hcd, urb, 0); |
| return 0; |
| } |
| } |
| dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" |
| "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" |
| "\n", urb, endp->endp_number, endp, endp->ring->number, |
| endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| endp->usb_endp, endp->usb_addr, endp->queue_size, |
| endp->queue_next, endp->queue_last); |
| return -EINVAL; |
| } |
| |
| static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, |
| struct urb *urb, int status) |
| { |
| unsigned long irqs; |
| int rc; |
| |
| spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
| if (rc) { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| return rc; |
| } |
| if (endp->queue_size == 0) { |
| dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" |
| "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, |
| endp->endp_number, endp, endp->ring->number, |
| endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| endp->usb_endp, endp->usb_addr); |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| return -EINVAL; |
| } |
| if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { |
| if (endp->active) { |
| endp->dequeueing = 1; |
| endp->edset_flush = 1; |
| u132_endp_queue_work(u132, endp, 0); |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| return 0; |
| } else { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| u132_hcd_abandon_urb(u132, endp, urb, status); |
| return 0; |
| } |
| } else { |
| u16 queue_list = 0; |
| u16 queue_size = endp->queue_size; |
| u16 queue_scan = endp->queue_next; |
| struct urb **urb_slot = NULL; |
| while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| if (urb == endp->urb_list[ENDP_QUEUE_MASK & |
| ++queue_scan]) { |
| urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| queue_scan]; |
| break; |
| } |
| } |
| while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & |
| ++queue_scan]; |
| urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| queue_scan]; |
| } |
| if (urb_slot) { |
| struct usb_hcd *hcd = u132_to_hcd(u132); |
| |
| usb_hcd_unlink_urb_from_ep(hcd, urb); |
| endp->queue_size -= 1; |
| if (list_empty(&endp->urb_more)) { |
| spin_unlock_irqrestore(&endp->queue_lock.slock, |
| irqs); |
| } else { |
| struct list_head *next = endp->urb_more.next; |
| struct u132_urbq *urbq = list_entry(next, |
| struct u132_urbq, urb_more); |
| list_del(next); |
| *urb_slot = urbq->urb; |
| spin_unlock_irqrestore(&endp->queue_lock.slock, |
| irqs); |
| kfree(urbq); |
| } |
| urb->error_count = 0; |
| usb_hcd_giveback_urb(hcd, urb, status); |
| return 0; |
| } else if (list_empty(&endp->urb_more)) { |
| dev_err(&u132->platform_dev->dev, "urb=%p not found in " |
| "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" |
| "=%d size=%d next=%04X last=%04X\n", urb, |
| endp->endp_number, endp, endp->ring->number, |
| endp->input ? 'I' : ' ', |
| endp->output ? 'O' : ' ', endp->usb_endp, |
| endp->usb_addr, endp->queue_size, |
| endp->queue_next, endp->queue_last); |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| return -EINVAL; |
| } else { |
| int retval; |
| |
| usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); |
| retval = dequeue_from_overflow_chain(u132, endp, |
| urb); |
| spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| return retval; |
| } |
| } |
| } |
| |
| static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 2) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| return -ENODEV; |
| } else { |
| u8 usb_addr = usb_pipedevice(urb->pipe); |
| u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| u8 address = u132->addr[usb_addr].address; |
| struct u132_udev *udev = &u132->udev[address]; |
| if (usb_pipein(urb->pipe)) { |
| u8 endp_number = udev->endp_number_in[usb_endp]; |
| struct u132_endp *endp = u132->endp[endp_number - 1]; |
| return u132_endp_urb_dequeue(u132, endp, urb, status); |
| } else { |
| u8 endp_number = udev->endp_number_out[usb_endp]; |
| struct u132_endp *endp = u132->endp[endp_number - 1]; |
| return u132_endp_urb_dequeue(u132, endp, urb, status); |
| } |
| } |
| } |
| |
| static void u132_endpoint_disable(struct usb_hcd *hcd, |
| struct usb_host_endpoint *hep) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 2) { |
| dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" |
| ") has been removed %d\n", u132, hcd, hep, |
| u132->going); |
| } else { |
| struct u132_endp *endp = hep->hcpriv; |
| if (endp) |
| u132_endp_put_kref(u132, endp); |
| } |
| } |
| |
| static int u132_get_frame(struct usb_hcd *hcd) |
| { |
| struct u132 *u132 = hcd_to_u132(hcd); |
| if (u132->going > 1) { |
| dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| , u132->going); |
| return -ENODEV; |
| } else if (u132->going > 0) { |
| dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| return -ESHUTDOWN; |
| } else { |
| dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); |
| mdelay(100); |
| return 0; |
| } |
| } |
| |
| static int u132_roothub_descriptor(struct u132 *u132, |
| struct usb_hub_descriptor *desc) |
| { |
| int retval; |
| u16 temp; |
| u32 rh_a = -1; |
| u32 rh_b = -1; |
| retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| if (retval) |
| return retval; |
| desc->bDescriptorType = USB_DT_HUB; |
| desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
| desc->bHubContrCurrent = 0; |
| desc->bNbrPorts = u132->num_ports; |
| temp = 1 + (u132->num_ports / 8); |
| desc->bDescLength = 7 + 2 * temp; |
| temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM; |
| if (rh_a & RH_A_NPS) |
| temp |= HUB_CHAR_NO_LPSM; |
| if (rh_a & RH_A_PSM) |
| temp |= HUB_CHAR_INDV_PORT_LPSM; |
| if (rh_a & RH_A_NOCP) |
| temp |= HUB_CHAR_NO_OCPM; |
| else if (rh_a & RH_A_OCPM) |
| temp |= HUB_CHAR_INDV_PORT_OCPM; |
| desc->wHubCharacteristics = cpu_to_le16(temp); |
| retval = u132_read_pcimem(u132, roothub.b, &rh_b); |
| if (retval) |
| return retval; |
| memset(desc->u.hs.DeviceRemovable, 0xff, |
| sizeof(desc->u.hs.DeviceRemovable)); |
| desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; |
| if (u132->num_ports > 7) { |
| desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
| desc->u.hs.DeviceRemovable[2] = 0xff; |
| } else |
| desc->u.hs.DeviceRemovable[1] = 0xff; |
| return 0; |
| } |
| |
| static int u132_roothub_status(struct u132 *u132, __le32 *desc) |
| { |
| u32 rh_status = -1; |
| int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); |
| *desc = cpu_to_le32(rh_status); |
| return ret_status; |
| } |
| |
| static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) |
| { |
| if (wIndex == 0 || wIndex > u132->num_ports) { |
| return -EINVAL; |
| } else { |
| int port = wIndex - 1; |
| u32 rh_portstatus = -1; |
| int ret_portstatus = u132_read_pcimem(u132, |
| roothub.portstatus[port], &rh_portstatus); |
| *desc = cpu_to_le32(rh_portstatus); |
| if (*(u16 *) (desc + 2)) { |
| dev_info(&u132->platform_dev->dev, "Port %d Status Chan" |
| "ge = %08X\n", port, *desc); |
| } |
| return ret_portstatus; |
| } |
| } |
| |
| |
| /* this timer value might be vendor-specific ... */ |
| #define PORT_RESET_HW_MSEC 10 |
| #define PORT_RESET_MSEC 10 |
| /* wrap-aware logic morphed from <linux/jiffies.h> */ |
| #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) |
| static int u132_roothub_portreset(struct u132 *u132, int port_index) |
| { |
| int retval; |
| u32 fmnumber; |
| u16 now; |
| u16 reset_done; |
| retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| if (retval) |
| return retval; |
| now = fmnumber; |
| reset_done = now + PORT_RESET_MSEC; |
| do { |
| u32 portstat; |
| do { |
| retval = u132_read_pcimem(u132, |
| roothub.portstatus[port_index], &portstat); |
| if (retval) |
| return retval; |
| if (RH_PS_PRS & portstat) |
| continue; |
| else |
| break; |
| } while (tick_before(now, reset_done)); |
| if (RH_PS_PRS & portstat) |
| return -ENODEV; |
| if (RH_PS_CCS & portstat) { |
| if (RH_PS_PRSC & portstat) { |
| retval = u132_write_pcimem(u132, |
| roothub.portstatus[port_index], |
| RH_PS_PRSC); |
| if (retval) |
| return retval; |
| } |
| } else |
| break; /* start the next reset, |
| sleep till it's probably done */ |
| retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
| RH_PS_PRS); |
| if (retval) |
| return retval; |
| msleep(PORT_RESET_HW_MSEC); |
| retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| if (retval) |
|