patch-2.4.21 linux-2.4.21/drivers/ide/ide-cs.c
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- Lines: 493
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.20/drivers/ide/ide-cs.c
- Orig date:
2002-11-28 15:53:13.000000000 -0800
diff -urN linux-2.4.20/drivers/ide/ide-cs.c linux-2.4.21/drivers/ide/ide-cs.c
@@ -1,492 +0,0 @@
-/*======================================================================
-
- A driver for PCMCIA IDE/ATA disk cards
-
- ide_cs.c 1.26 1999/11/16 02:10:49
-
- The contents of this file are subject to the Mozilla Public
- License Version 1.1 (the "License"); you may not use this file
- except in compliance with the License. You may obtain a copy of
- the License at http://www.mozilla.org/MPL/
-
- Software distributed under the License is distributed on an "AS
- IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- implied. See the License for the specific language governing
- rights and limitations under the License.
-
- The initial developer of the original code is David A. Hinds
- <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
- are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
-
- Alternatively, the contents of this file may be used under the
- terms of the GNU General Public License version 2 (the "GPL"), in which
- case the provisions of the GPL are applicable instead of the
- above. If you wish to allow the use of your version of this file
- only under the terms of the GPL and not to allow others to use
- your version of this file under the MPL, indicate your decision
- by deleting the provisions above and replace them with the notice
- and other provisions required by the GPL. If you do not delete
- the provisions above, a recipient may use your version of this
- file under either the MPL or the GPL.
-
-======================================================================*/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/ioport.h>
-#include <linux/hdreg.h>
-#include <linux/major.h>
-#include <linux/ide.h>
-
-#include <asm/io.h>
-#include <asm/system.h>
-
-#include <pcmcia/version.h>
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/cisreg.h>
-
-#ifdef PCMCIA_DEBUG
-static int pc_debug = PCMCIA_DEBUG;
-MODULE_PARM(pc_debug, "i");
-#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
-static char *version =
-"ide_cs.c 1.26 1999/11/16 02:10:49 (David Hinds)";
-#else
-#define DEBUG(n, args...)
-#endif
-
-/*====================================================================*/
-
-/* Parameters that can be set with 'insmod' */
-
-/* Bit map of interrupts to choose from */
-static u_int irq_mask = 0xdeb8;
-static int irq_list[4] = { -1 };
-
-MODULE_PARM(irq_mask, "i");
-MODULE_PARM(irq_list, "1-4i");
-
-MODULE_LICENSE("GPL");
-
-
-/*====================================================================*/
-
-static const char ide_major[] = {
- IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR,
-#ifdef IDE4_MAJOR
- IDE4_MAJOR, IDE5_MAJOR
-#endif
-};
-
-typedef struct ide_info_t {
- dev_link_t link;
- int ndev;
- dev_node_t node;
- int hd;
-} ide_info_t;
-
-static void ide_config(dev_link_t *link);
-static void ide_release(u_long arg);
-static int ide_event(event_t event, int priority,
- event_callback_args_t *args);
-
-static dev_info_t dev_info = "ide-cs";
-
-static dev_link_t *ide_attach(void);
-static void ide_detach(dev_link_t *);
-
-static dev_link_t *dev_list = NULL;
-
-/*====================================================================*/
-
-static void cs_error(client_handle_t handle, int func, int ret)
-{
- error_info_t err = { func, ret };
- CardServices(ReportError, handle, &err);
-}
-
-/*======================================================================
-
- ide_attach() creates an "instance" of the driver, allocating
- local data structures for one device. The device is registered
- with Card Services.
-
-======================================================================*/
-
-static dev_link_t *ide_attach(void)
-{
- ide_info_t *info;
- dev_link_t *link;
- client_reg_t client_reg;
- int i, ret;
-
- DEBUG(0, "ide_attach()\n");
-
- /* Create new ide device */
- info = kmalloc(sizeof(*info), GFP_KERNEL);
- if (!info) return NULL;
- memset(info, 0, sizeof(*info));
- link = &info->link; link->priv = info;
-
- link->release.function = &ide_release;
- link->release.data = (u_long)link;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
- link->io.IOAddrLines = 3;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
- if (irq_list[0] == -1)
- link->irq.IRQInfo2 = irq_mask;
- else
- for (i = 0; i < 4; i++)
- link->irq.IRQInfo2 |= 1 << irq_list[i];
- link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
- link->conf.IntType = INT_MEMORY_AND_IO;
-
- /* Register with Card Services */
- link->next = dev_list;
- dev_list = link;
- client_reg.dev_info = &dev_info;
- client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
- client_reg.EventMask =
- CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
- CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
- CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
- client_reg.event_handler = &ide_event;
- client_reg.Version = 0x0210;
- client_reg.event_callback_args.client_data = link;
- ret = CardServices(RegisterClient, &link->handle, &client_reg);
- if (ret != CS_SUCCESS) {
- cs_error(link->handle, RegisterClient, ret);
- ide_detach(link);
- return NULL;
- }
-
- return link;
-} /* ide_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 ide_detach(dev_link_t *link)
-{
- dev_link_t **linkp;
- int ret;
-
- DEBUG(0, "ide_detach(0x%p)\n", link);
-
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
-
- del_timer(&link->release);
- if (link->state & DEV_CONFIG)
- ide_release((u_long)link);
-
- if (link->handle) {
- ret = CardServices(DeregisterClient, link->handle);
- if (ret != CS_SUCCESS)
- cs_error(link->handle, DeregisterClient, ret);
- }
-
- /* Unlink, free device structure */
- *linkp = link->next;
- kfree(link->priv);
-
-} /* ide_detach */
-
-/*======================================================================
-
- ide_config() is scheduled to run after a CARD_INSERTION event
- is received, to configure the PCMCIA socket, and to make the
- ide device available to the system.
-
-======================================================================*/
-
-#define CS_CHECK(fn, args...) \
-while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
-
-#define CFG_CHECK(fn, args...) \
-if (CardServices(fn, args) != 0) goto next_entry
-
-int idecs_register (int arg1, int arg2, int irq)
-{
- hw_regs_t hw;
- ide_init_hwif_ports(&hw, (ide_ioreg_t) arg1, (ide_ioreg_t) arg2, NULL);
- hw.irq = irq;
- hw.chipset = ide_pci; /* this enables IRQ sharing w/ PCI irqs */
- return ide_register_hw(&hw, NULL);
-}
-
-void ide_config(dev_link_t *link)
-{
- client_handle_t handle = link->handle;
- ide_info_t *info = link->priv;
- tuple_t tuple;
- u_short buf[128];
- cisparse_t parse;
- config_info_t conf;
- cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
- cistpl_cftable_entry_t dflt = { 0 };
- int i, pass, last_ret, last_fn, hd=-1, io_base, ctl_base;
-
- DEBUG(0, "ide_config(0x%p)\n", link);
-
- tuple.TupleData = (cisdata_t *)buf;
- tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
- tuple.Attributes = 0;
- tuple.DesiredTuple = CISTPL_CONFIG;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- CS_CHECK(GetTupleData, handle, &tuple);
- CS_CHECK(ParseTuple, handle, &tuple, &parse);
- link->conf.ConfigBase = parse.config.base;
- link->conf.Present = parse.config.rmask[0];
-
- /* Configure card */
- link->state |= DEV_CONFIG;
-
- /* Not sure if this is right... look up the current Vcc */
- CS_CHECK(GetConfigurationInfo, handle, &conf);
- link->conf.Vcc = conf.Vcc;
-
- pass = io_base = ctl_base = 0;
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- tuple.Attributes = 0;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- while (1) {
- CFG_CHECK(GetTupleData, handle, &tuple);
- CFG_CHECK(ParseTuple, handle, &tuple, &parse);
-
- /* Check for matching Vcc, unless we're desperate */
- if (!pass) {
- if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
- if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000)
- goto next_entry;
- } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
- if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000)
- goto next_entry;
- }
- }
-
- if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vpp1 = link->conf.Vpp2 =
- cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
- else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vpp1 = link->conf.Vpp2 =
- dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
-
- if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
- cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
- link->conf.ConfigIndex = cfg->index;
- link->io.BasePort1 = io->win[0].base;
- link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
- if (!(io->flags & CISTPL_IO_16BIT))
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
- if (io->nwin == 2) {
- link->io.NumPorts1 = 8;
- link->io.BasePort2 = io->win[1].base;
- link->io.NumPorts2 = 1;
- CFG_CHECK(RequestIO, link->handle, &link->io);
- io_base = link->io.BasePort1;
- ctl_base = link->io.BasePort2;
- } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
- link->io.NumPorts1 = io->win[0].len;
- link->io.NumPorts2 = 0;
- CFG_CHECK(RequestIO, link->handle, &link->io);
- io_base = link->io.BasePort1;
- ctl_base = link->io.BasePort1+0x0e;
- } else goto next_entry;
- /* If we've got this far, we're done */
- break;
- }
-
- next_entry:
- if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
- if (pass) {
- CS_CHECK(GetNextTuple, handle, &tuple);
- } else if (CardServices(GetNextTuple, handle, &tuple) != 0) {
- CS_CHECK(GetFirstTuple, handle, &tuple);
- memset(&dflt, 0, sizeof(dflt));
- pass++;
- }
- }
-
- CS_CHECK(RequestIRQ, handle, &link->irq);
- CS_CHECK(RequestConfiguration, handle, &link->conf);
-
- /* deal with brain dead IDE resource management */
- release_region(link->io.BasePort1, link->io.NumPorts1);
- if (link->io.NumPorts2)
- release_region(link->io.BasePort2, link->io.NumPorts2);
-
- /* retry registration in case device is still spinning up */
- for (i = 0; i < 10; i++) {
- if (ctl_base)
- outb(0x02, ctl_base); /* Set nIEN = disable device interrupts */
- hd = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ);
- if (hd >= 0) break;
- if (link->io.NumPorts1 == 0x20) {
- if (ctl_base)
- outb(0x02, ctl_base+0x10);
- hd = idecs_register(io_base+0x10, ctl_base+0x10,
- link->irq.AssignedIRQ);
- if (hd >= 0) {
- io_base += 0x10; ctl_base += 0x10;
- break;
- }
- }
- __set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ/10);
- }
-
- if (hd < 0) {
- printk(KERN_NOTICE "ide_cs: ide_register() at 0x%03x & 0x%03x"
- ", irq %u failed\n", io_base, ctl_base,
- link->irq.AssignedIRQ);
- goto failed;
- }
-
- MOD_INC_USE_COUNT;
- info->ndev = 1;
- sprintf(info->node.dev_name, "hd%c", 'a'+(hd*2));
- info->node.major = ide_major[hd];
- info->node.minor = 0;
- info->hd = hd;
- link->dev = &info->node;
- printk(KERN_INFO "ide_cs: %s: Vcc = %d.%d, Vpp = %d.%d\n",
- info->node.dev_name, link->conf.Vcc/10, link->conf.Vcc%10,
- link->conf.Vpp1/10, link->conf.Vpp1%10);
-
- link->state &= ~DEV_CONFIG_PENDING;
- return;
-
-cs_failed:
- cs_error(link->handle, last_fn, last_ret);
-failed:
- ide_release((u_long)link);
-
-} /* ide_config */
-
-/*======================================================================
-
- After a card is removed, ide_release() will unregister the net
- device, and release the PCMCIA configuration. If the device is
- still open, this will be postponed until it is closed.
-
-======================================================================*/
-
-void ide_release(u_long arg)
-{
- dev_link_t *link = (dev_link_t *)arg;
- ide_info_t *info = link->priv;
-
- DEBUG(0, "ide_release(0x%p)\n", link);
-
- if (info->ndev) {
- ide_unregister(info->hd);
- MOD_DEC_USE_COUNT;
- }
-
- request_region(link->io.BasePort1, link->io.NumPorts1,"ide-cs");
- if (link->io.NumPorts2)
- request_region(link->io.BasePort2, link->io.NumPorts2,"ide-cs");
-
- info->ndev = 0;
- link->dev = NULL;
-
- CardServices(ReleaseConfiguration, link->handle);
- CardServices(ReleaseIO, link->handle, &link->io);
- CardServices(ReleaseIRQ, link->handle, &link->irq);
-
- link->state &= ~DEV_CONFIG;
-
-} /* ide_release */
-
-/*======================================================================
-
- The card status event handler. Mostly, this schedules other
- stuff to run after an event is received. A CARD_REMOVAL event
- also sets some flags to discourage the ide drivers from
- talking to the ports.
-
-======================================================================*/
-
-int ide_event(event_t event, int priority,
- event_callback_args_t *args)
-{
- dev_link_t *link = args->client_data;
-
- DEBUG(1, "ide_event(0x%06x)\n", event);
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG)
- mod_timer(&link->release, jiffies + HZ/20);
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- ide_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- if (link->state & DEV_CONFIG)
- CardServices(ReleaseConfiguration, link->handle);
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (DEV_OK(link))
- CardServices(RequestConfiguration, link->handle, &link->conf);
- break;
- }
- return 0;
-} /* ide_event */
-
-/*====================================================================*/
-
-static int __init init_ide_cs(void)
-{
- servinfo_t serv;
- DEBUG(0, "%s\n", version);
- CardServices(GetCardServicesInfo, &serv);
- if (serv.Revision != CS_RELEASE_CODE) {
- printk(KERN_NOTICE "ide_cs: Card Services release "
- "does not match!\n");
- return -1;
- }
- register_pccard_driver(&dev_info, &ide_attach, &ide_detach);
- return 0;
-}
-
-static void __exit exit_ide_cs(void)
-{
- DEBUG(0, "ide_cs: unloading\n");
- unregister_pccard_driver(&dev_info);
- while (dev_list != NULL)
- ide_detach(dev_list);
-}
-
-module_init(init_ide_cs);
-module_exit(exit_ide_cs);
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