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/*======================================================================
A driver for PCMCIA IDE/ATA disk cards
ide-cs.c 1.3 2002/10/26 05:45:31
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/ide.h>
#include <linux/hdreg.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/system.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>
/*====================================================================*/
/* Module parameters */
MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
MODULE_LICENSE("Dual MPL/GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
#ifdef PCMCIA_DEBUG
INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
static char *version =
"ide-cs.c 1.3 2002/10/26 05:45:31 (David Hinds)";
#else
#define DEBUG(n, args...)
#endif
/*====================================================================*/
static const char ide_major[] = {
IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR,
IDE4_MAJOR, IDE5_MAJOR
};
typedef struct ide_info_t {
struct pcmcia_device *p_dev;
int ndev;
dev_node_t node;
int hd;
} ide_info_t;
static void ide_release(struct pcmcia_device *);
static int ide_config(struct pcmcia_device *);
static void ide_detach(struct pcmcia_device *p_dev);
/*======================================================================
ide_attach() creates an "instance" of the driver, allocating
local data structures for one device. The device is registered
with Card Services.
======================================================================*/
static int ide_probe(struct pcmcia_device *link)
{
ide_info_t *info;
DEBUG(0, "ide_attach()\n");
/* Create new ide device */
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
info->p_dev = link;
link->priv = info;
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_DYNAMIC_SHARING;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
return ide_config(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(struct pcmcia_device *link)
{
DEBUG(0, "ide_detach(0x%p)\n", link);
ide_release(link);
kfree(link->priv);
} /* ide_detach */
static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle)
{
hw_regs_t hw;
memset(&hw, 0, sizeof(hw));
ide_init_hwif_ports(&hw, io, ctl, NULL);
hw.irq = irq;
hw.chipset = ide_pci;
hw.dev = &handle->dev;
return ide_register_hw_with_fixup(&hw, NULL, ide_undecoded_slave);
}
/*======================================================================
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, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
static int ide_config(struct pcmcia_device *link)
{
ide_info_t *info = link->priv;
tuple_t tuple;
struct {
u_short buf[128];
cisparse_t parse;
config_info_t conf;
cistpl_cftable_entry_t dflt;
} *stk = NULL;
cistpl_cftable_entry_t *cfg;
int i, pass, last_ret = 0, last_fn = 0, hd, is_kme = 0;
unsigned long io_base, ctl_base;
DEBUG(0, "ide_config(0x%p)\n", link);
stk = kzalloc(sizeof(*stk), GFP_KERNEL);
if (!stk) goto err_mem;
cfg = &stk->parse.cftable_entry;
tuple.TupleData = (cisdata_t *)&stk->buf;
tuple.TupleOffset = 0;
tuple.TupleDataMax = 255;
tuple.Attributes = 0;
is_kme = ((link->manf_id == MANFID_KME) &&
((link->card_id == PRODID_KME_KXLC005_A) ||
(link->card_id == PRODID_KME_KXLC005_B)));
/* Not sure if this is right... look up the current Vcc */
CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &stk->conf));
pass = io_base = ctl_base = 0;
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
tuple.Attributes = 0;
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
if (pcmcia_get_tuple_data(link, &tuple) != 0) goto next_entry;
if (pcmcia_parse_tuple(link, &tuple, &stk->parse) != 0) goto next_entry;
/* Check for matching Vcc, unless we're desperate */
if (!pass) {
if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
goto next_entry;
} else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
goto next_entry;
}
}
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
link->conf.Vpp =
cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
link->conf.Vpp =
stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->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 = (is_kme) ? 2 : 1;
if (pcmcia_request_io(link, &link->io) != 0)
goto next_entry;
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
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