| /*--------------------------------------------------------------------------- |
| FT1000 driver for Flarion Flash OFDM NIC Device |
| |
| Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| Copyright (C) 2002 Flarion Technologies, All rights reserved. |
| Copyright (C) 2006 Patrik Ostrihon, All rights reserved. |
| Copyright (C) 2006 ProWeb Consulting, a.s, All rights reserved. |
| |
| The initial developer of the original code is David A. Hinds |
| <dahinds@users.sourceforge.net>. Portions created by David A. Hinds. |
| |
| This file was modified to support the Flarion Flash OFDM NIC Device |
| by Wai Chan (w.chan@flarion.com). |
| |
| Port for kernel 2.6 created by Patrik Ostrihon (patrik.ostrihon@pwc.sk) |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 2 of the License, or (at your option) any |
| later version. This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| more details. You should have received a copy of the GNU General Public |
| License along with this program; if not, write to the |
| Free Software Foundation, Inc., 59 Temple Place - |
| Suite 330, Boston, MA 02111-1307, USA. |
| -----------------------------------------------------------------------------*/ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/ptrace.h> |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| #include <linux/timer.h> |
| #include <linux/ioport.h> |
| #include <linux/delay.h> |
| |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| |
| //#include <pcmcia/version.h> // Slavius 21.10.2009 removed from kernel |
| #include <pcmcia/cs_types.h> |
| #include <pcmcia/cs.h> |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/cisreg.h> |
| #include <pcmcia/ds.h> |
| |
| #include <asm/io.h> |
| #include <asm/system.h> |
| #include <asm/byteorder.h> |
| #include <asm/uaccess.h> |
| |
| #include "ft1000_cs.h" // Slavius 21.10.2009 because CS_SUCCESS constant is missing due to removed pcmcia/version.h |
| |
| /*====================================================================*/ |
| |
| /* Module parameters */ |
| |
| #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i") |
| |
| MODULE_AUTHOR("Wai Chan"); |
| MODULE_DESCRIPTION("FT1000 PCMCIA driver"); |
| MODULE_LICENSE("GPL"); |
| |
| /* Newer, simpler way of listing specific interrupts */ |
| |
| /* The old way: bit map of interrupts to choose from */ |
| /* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */ |
| |
| /* |
| All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If |
| you do not define PCMCIA_DEBUG at all, all the debug code will be |
| left out. If you compile with PCMCIA_DEBUG=0, the debug code will |
| be present but disabled. |
| */ |
| #ifdef FT_DEBUG |
| #define DEBUG(n, args...) printk(KERN_DEBUG args) |
| #else |
| #define DEBUG(n, args...) |
| #endif |
| |
| /*====================================================================*/ |
| |
| struct net_device *init_ft1000_card(int, int, unsigned char *, |
| void *ft1000_reset, struct pcmcia_device * link, |
| struct device *fdev); |
| void stop_ft1000_card(struct net_device *); |
| |
| static int ft1000_config(struct pcmcia_device *link); |
| static void ft1000_release(struct pcmcia_device *link); |
| |
| /* |
| The attach() and detach() entry points are used to create and destroy |
| "instances" of the driver, where each instance represents everything |
| needed to manage one actual PCMCIA card. |
| */ |
| |
| static void ft1000_detach(struct pcmcia_device *link); |
| static int ft1000_attach(struct pcmcia_device *link); |
| |
| typedef struct local_info_t { |
| struct pcmcia_device *link; |
| struct net_device *dev; |
| } local_info_t; |
| |
| #define MAX_ASIC_RESET_CNT 10 |
| #define COR_DEFAULT 0x55 |
| |
| /*====================================================================*/ |
| |
| static void ft1000_reset(struct pcmcia_device * link) |
| { |
| conf_reg_t reg; |
| |
| DEBUG(0, "ft1000_cs:ft1000_reset is called................\n"); |
| |
| /* Soft-Reset card */ |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = COR_SOFT_RESET; |
| pcmcia_access_configuration_register(link, ®); |
| |
| /* Wait until the card has acknowledged our reset */ |
| udelay(2); |
| |
| /* Restore original COR configuration index */ |
| /* Need at least 2 write to respond */ |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = COR_DEFAULT; |
| pcmcia_access_configuration_register(link, ®); |
| |
| /* Wait until the card has finished restarting */ |
| udelay(1); |
| |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = COR_DEFAULT; |
| pcmcia_access_configuration_register(link, ®); |
| |
| /* Wait until the card has finished restarting */ |
| udelay(1); |
| |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = COR_DEFAULT; |
| pcmcia_access_configuration_register(link, ®); |
| |
| /* Wait until the card has finished restarting */ |
| udelay(1); |
| |
| } |
| |
| /*====================================================================*/ |
| |
| static int get_tuple_first(struct pcmcia_device *link, tuple_t * tuple, |
| cisparse_t * parse) |
| { |
| int i; |
| i = pcmcia_get_first_tuple(link, tuple); |
| if (i != CS_SUCCESS) |
| return i; |
| i = pcmcia_get_tuple_data(link, tuple); |
| if (i != CS_SUCCESS) |
| return i; |
| return pcmcia_parse_tuple(tuple, parse); // Slavius 21.10.2009 removed unused link parameter |
| } |
| |
| static int get_tuple_next(struct pcmcia_device *link, tuple_t * tuple, |
| cisparse_t * parse) |
| { |
| int i; |
| i = pcmcia_get_next_tuple(link, tuple); |
| if (i != CS_SUCCESS) |
| return i; |
| i = pcmcia_get_tuple_data(link, tuple); |
| if (i != CS_SUCCESS) |
| return i; |
| return pcmcia_parse_tuple(tuple, parse); // Slavius 21.10.2009 removed unused link parameter |
| } |
| |
| /*====================================================================== |
| |
| |
| ======================================================================*/ |
| |
| static int ft1000_attach(struct pcmcia_device *link) |
| { |
| |
| local_info_t *local; |
| |
| DEBUG(0, "ft1000_cs: ft1000_attach()\n"); |
| |
| local = kmalloc(sizeof(local_info_t), GFP_KERNEL); |
| if (!local) { |
| return -ENOMEM; |
| } |
| memset(local, 0, sizeof(local_info_t)); |
| local->link = link; |
| |
| link->priv = local; |
| local->dev = NULL; |
| |
| link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; |
| link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| link->conf.Attributes = CONF_ENABLE_IRQ; |
| link->conf.IntType = INT_MEMORY_AND_IO; |
| link->irq.Handler = NULL; |
| |
| return ft1000_config(link); |
| } /* ft1000_attach */ |
| |
| /*====================================================================== |
| |
| This deletes a driver "instance". The device is de-registered |
| with Card Services. If it has been released, all local data |
| structures are freed. Otherwise, the structures will be freed |
| when the device is released. |
| |
| ======================================================================*/ |
| |
| static void ft1000_detach(struct pcmcia_device *link) |
| { |
| struct net_device *dev = ((local_info_t *) link->priv)->dev; |
| |
| DEBUG(0, "ft1000_cs: ft1000_detach(0x%p)\n", link); |
| |
| if (link == NULL) { |
| DEBUG(0,"ft1000_cs:ft1000_detach: Got a NULL pointer\n"); |
| return; |
| } |
| |
| if (dev) { |
| stop_ft1000_card(dev); |
| } |
| |
| ft1000_release(link); |
| |
| /* This points to the parent local_info_t struct */ |
| free_netdev(dev); |
| |
| } /* ft1000_detach */ |
| |
| /*====================================================================== |
| |
| ft1000_config() is scheduled to run after a CARD_INSERTION event |
| is received, to configure the PCMCIA socket, and to make the |
| device available to the system. |
| |
| ======================================================================*/ |
| |
| #define CS_CHECK(fn, ret) \ |
| do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| |
| #define CFG_CHECK(fn, ret) \ |
| last_fn = (fn); if ((last_ret = (ret)) != 0) goto next_entry |
| |
| static int ft1000_config(struct pcmcia_device * link) |
| { |
| tuple_t tuple; |
| cisparse_t parse; |
| int last_fn, last_ret, i; |
| u_char buf[64]; |
| cistpl_lan_node_id_t *node_id; |
| cistpl_cftable_entry_t dflt = { 0 }; |
| cistpl_cftable_entry_t *cfg; |
| unsigned char mac_address[6]; |
| |
| DEBUG(0, "ft1000_cs: ft1000_config(0x%p)\n", link); |
| |
| /* |
| This reads the card's CONFIG tuple to find its configuration |
| registers. |
| */ |
| // tuple.DesiredTuple = CISTPL_CONFIG; |
| // tuple.Attributes = 0; |
| tuple.TupleData = buf; |
| tuple.TupleDataMax = sizeof(buf); |
| tuple.TupleOffset = 0; |
| // CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); |
| // CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); |
| // CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse)); |
| // link->conf.ConfigBase = parse.config.base; |
| // link->conf.Present = parse.config.rmask[0]; |
| |
| /* |
| In this loop, we scan the CIS for configuration table entries, |
| each of which describes a valid card configuration, including |
| voltage, IO window, memory window, and interrupt settings. |
| |
| We make no assumptions about the card to be configured: we use |
| just the information available in the CIS. In an ideal world, |
| this would work for any PCMCIA card, but it requires a complete |
| and accurate CIS. In practice, a driver usually "knows" most of |
| these things without consulting the CIS, and most client drivers |
| will only use the CIS to fill in implementation-defined details. |
| */ |
| tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| tuple.Attributes = 0; |
| CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); |
| while (1) { |
| cfg = &(parse.cftable_entry); |
| CFG_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); |
| CFG_CHECK(ParseTuple, |
| pcmcia_parse_tuple(&tuple, &parse)); // Slavius 21.10.2009 removed unused link parameter |
| |
| if (cfg->flags & CISTPL_CFTABLE_DEFAULT) |
| dflt = *cfg; |
| if (cfg->index == 0) |
| goto next_entry; |
| link->conf.ConfigIndex = cfg->index; |
| |
| /* Do we need to allocate an interrupt? */ |
| if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) |
| link->conf.Attributes |= CONF_ENABLE_IRQ; |
| |
| /* IO window settings */ |
| link->io.NumPorts1 = link->io.NumPorts2 = 0; |
| if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { |
| cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; |
| link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| if (!(io->flags & CISTPL_IO_8BIT)) { |
| DEBUG(0, "ft1000_cs: IO_DATA_PATH_WIDTH_16\n"); |
| link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| } |
| if (!(io->flags & CISTPL_IO_16BIT)) { |
| DEBUG(0, "ft1000_cs: IO_DATA_PATH_WIDTH_8\n"); |
| link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| } |
| link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; |
| link->io.BasePort1 = io->win[0].base; |
| link->io.NumPorts1 = io->win[0].len; |
| if (io->nwin > 1) { |
| link->io.Attributes2 = link->io.Attributes1; |
| link->io.BasePort2 = io->win[1].base; |
| link->io.NumPorts2 = io->win[1].len; |
| } |
| /* This reserves IO space but doesn't actually enable it */ |
| pcmcia_request_io(link, &link->io); |
| } |
| |
| break; |
| |
| next_entry: |
| last_ret = pcmcia_get_next_tuple(link, &tuple); |
| } |
| if (last_ret != CS_SUCCESS) { |
| cs_error(link, RequestIO, last_ret); |
| goto failed; |
| } |
| |
| /* |
| Allocate an interrupt line. Note that this does not assign a |
| handler to the interrupt, unless the 'Handler' member of the |
| irq structure is initialized. |
| */ |
| CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); |
| |
| /* |
| This actually configures the PCMCIA socket -- setting up |
| the I/O windows and the interrupt mapping, and putting the |
| card and host interface into "Memory and IO" mode. |
| */ |
| CS_CHECK(RequestConfiguration, |
| pcmcia_request_configuration(link, &link->conf)); |
| |
| /* Get MAC address from tuples */ |
| |
| tuple.Attributes = tuple.TupleOffset = 0; |
| tuple.TupleData = buf; |
| tuple.TupleDataMax = sizeof(buf); |
| |
| /* Check for a LAN function extension tuple */ |
| tuple.DesiredTuple = CISTPL_FUNCE; |
| i = get_tuple_first(link, &tuple, &parse); |
| while (i == CS_SUCCESS) { |
| if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID) |
| break; |
| i = get_tuple_next(link, &tuple, &parse); |
| } |
| |
| if (i == CS_SUCCESS) { |
| node_id = (cistpl_lan_node_id_t *) parse.funce.data; |
| if (node_id->nb == 6) { |
| for (i = 0; i < 6; i++) |
| mac_address[i] = node_id->id[i]; |
| } |
| } |
| |
| ((local_info_t *) link->priv)->dev = |
| init_ft1000_card(link->irq.AssignedIRQ, link->io.BasePort1, |
| &mac_address[0], ft1000_reset, link, |
| &handle_to_dev(link)); |
| |
| /* |
| At this point, the dev_node_t structure(s) need to be |
| initialized and arranged in a linked list at link->dev. |
| */ |
| |
| /* Finally, report what we've done */ |
| |
| return 0; |
| |
| cs_failed: |
| cs_error(link, last_fn, last_ret); |
| failed: |
| ft1000_release(link); |
| return -ENODEV; |
| |
| } /* ft1000_config */ |
| |
| /*====================================================================== |
| |
| After a card is removed, ft1000_release() will unregister the |
| device, and release the PCMCIA configuration. If the device is |
| still open, this will be postponed until it is closed. |
| |
| ======================================================================*/ |
| |
| static void ft1000_release(struct pcmcia_device * link) |
| { |
| |
| DEBUG(0, "ft1000_cs: ft1000_release(0x%p)\n", link); |
| |
| /* |
| If the device is currently in use, we won't release until it |
| is actually closed, because until then, we can't be sure that |
| no one will try to access the device or its data structures. |
| */ |
| |
| /* Unlink the device chain */ |
| link->dev_node = NULL; |
| |
| /* |
| In a normal driver, additional code may be needed to release |
| other kernel data structures associated with this device. |
| */ |
| |
| /* Don't bother checking to see if these succeed or not */ |
| |
| pcmcia_disable_device(link); |
| } /* ft1000_release */ |
| |
| /*====================================================================== |
| |
| The card status event handler. Mostly, this schedules other |
| stuff to run after an event is received. |
| |
| When a CARD_REMOVAL event is received, we immediately set a |
| private flag to block future accesses to this device. All the |
| functions that actually access the device should check this flag |
| to make sure the card is still present. |
| |
| ======================================================================*/ |
| |
| static int ft1000_suspend(struct pcmcia_device *link) |
| { |
| struct net_device *dev = ((local_info_t *) link->priv)->dev; |
| |
| DEBUG(1, "ft1000_cs: ft1000_event(0x%06x)\n", event); |
| |
| if (link->open) |
| netif_device_detach(dev); |
| return 0; |
| } |
| |
| static int ft1000_resume(struct pcmcia_device *link) |
| { |
| /* struct net_device *dev = link->priv; |
| */ |
| return 0; |
| } |
| |
| |
| |
| /*====================================================================*/ |
| |
| static struct pcmcia_device_id ft1000_ids[] = { |
| PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x0100), |
| PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1000), |
| PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1300), |
| PCMCIA_DEVICE_NULL, |
| }; |
| |
| MODULE_DEVICE_TABLE(pcmcia, ft1000_ids); |
| |
| static struct pcmcia_driver ft1000_cs_driver = { |
| .owner = THIS_MODULE, |
| .drv = { |
| .name = "ft1000_cs", |
| }, |
| .probe = ft1000_attach, |
| .remove = ft1000_detach, |
| .id_table = ft1000_ids, |
| .suspend = ft1000_suspend, |
| .resume = ft1000_resume, |
| }; |
| |
| static int __init init_ft1000_cs(void) |
| { |
| DEBUG(0, "ft1000_cs: loading\n"); |
| return pcmcia_register_driver(&ft1000_cs_driver); |
| } |
| |
| static void __exit exit_ft1000_cs(void) |
| { |
| DEBUG(0, "ft1000_cs: unloading\n"); |
| pcmcia_unregister_driver(&ft1000_cs_driver); |
| } |
| |
| module_init(init_ft1000_cs); |
| module_exit(exit_ft1000_cs); |