Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 481 insertions, 0 deletions

diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c
new file mode 100644
index 00000000000..e20327e54b1
--- /dev/null
+++ b/drivers/ide/legacy/ide-cs.c
@@ -0,0 +1,481 @@
+/*======================================================================
+
+    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 <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>
+#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 {
+    dev_link_t	link;
+    int		ndev;
+    dev_node_t	node;
+    int		hd;
+} ide_info_t;
+
+static void ide_release(dev_link_t *);
+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;
+
+/*======================================================================
+
+    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 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->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_LEVEL_ID;
+    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.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 = pcmcia_register_client(&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;
+
+    if (link->state & DEV_CONFIG)
+	ide_release(link);
+    
+    if (link->handle) {
+	ret = pcmcia_deregister_client(link->handle);
+	if (ret != CS_SUCCESS)
+	    cs_error(link->handle, DeregisterClient, ret);
+    }
+    
+    /* Unlink, free device structure */
+    *linkp = link->next;
+    kfree(link->priv);
+    
+} /* ide_detach */
+
+static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq)
+{
+    hw_regs_t hw;
+    memset(&hw, 0, sizeof(hw));
+    ide_init_hwif_ports(&hw, io, ctl, NULL);
+    hw.irq = irq;
+    hw.chipset = ide_pci;
+    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 void ide_config(dev_link_t *link)
+{
+    client_handle_t handle = link->handle;
+    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 = kmalloc(sizeof(*stk), GFP_KERNEL);
+    if (!stk) goto err_mem;
+    memset(stk, 0, sizeof(*stk));
+    cfg = &stk->parse.cftable_entry;
+
+    tuple.TupleData = (cisdata_t *)&stk->buf;
+    tuple.TupleOffset = 0;
+    tuple.TupleDataMax = 255;
+    tuple.Attributes = 0;
+    tuple.DesiredTuple = CISTPL_CONFIG;
+    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+    CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+    CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &stk->parse));
+    link->conf.ConfigBase = stk->parse.config.base;
+    link->conf.Present = stk->parse.config.rmask[0];
+
+    tuple.DesiredTuple = CISTPL_MANFID;
+    if (!pcmcia_get_first_tuple(handle, &tuple) &&
+	!pcmcia_get_tuple_data(handle, &tuple) &&
+	!pcmcia_parse_tuple(handle, &tuple, &stk->parse))
+	is_kme = ((stk->parse.manfid.manf == MANFID_KME) &&
+		  ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) ||
+		   (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
+
+    /* Configure card */
+    link->state |= DEV_CONFIG;
+
+    /* Not sure if this is right... look up the current Vcc */
+    CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &stk->conf));
+    link->conf.Vcc = stk->conf.Vcc;
+
+    pass = io_base = ctl_base = 0;
+    tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+    tuple.Attributes = 0;
+    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+    while (1) {
+    	if (pcmcia_get_tuple_data(handle, &tuple) != 0) goto next_entry;
+	if (pcmcia_parse_tuple(handle, &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.Vpp1 = link->conf.Vpp2 =
+		cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+	else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
+	    link->conf.Vpp1 = link->conf.Vpp2 =
+		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->handle, &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.NumPorts2 = 0;
+		if (pcmcia_request_io(link->handle, &link->io) != 0)
+			goto next_entry;
+		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)
+	    memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
+	if (pass) {
+	    CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+	} else if (pcmcia_get_next_tuple(handle, &tuple) != 0) {
+	    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+	    memset(&stk->dflt, 0, sizeof(stk->dflt));
+	    pass++;
+	}
+    }
+
+    CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
+    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+
+    /* disable drive interrupts during IDE probe */
+    outb(0x02, ctl_base);
+
+    /* special setup for KXLC005 card */
+    if (is_kme)
+	outb(0x81, ctl_base+1);
+
+    /* retry registration in case device is still spinning up */
+    for (hd = -1, i = 0; i < 10; i++) {
+	hd = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ);
+	if (hd >= 0) break;
+	if (link->io.NumPorts1 == 0x20) {
+	    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%3lx & 0x%3lx"
+	       ", irq %u failed\n", io_base, ctl_base,
+	       link->irq.AssignedIRQ);
+	goto failed;
+    }
+
+    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;
+    kfree(stk);
+    return;
+
+err_mem:
+    printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
+    goto failed;
+
+cs_failed:
+    cs_error(link->handle, last_fn, last_ret);
+failed:
+    kfree(stk);
+    ide_release(link);
+    link->state &= ~DEV_CONFIG_PENDING;
+} /* 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(dev_link_t *link)
+{
+    ide_info_t *info = link->priv;
+    
+    DEBUG(0, "ide_release(0x%p)\n", link);
+
+    if (info->ndev) {
+	/* FIXME: if this fails we need to queue the cleanup somehow
+	   -- need to investigate the required PCMCIA magic */
+	ide_unregister(info->hd);
+    }
+    info->ndev = 0;
+    link->dev = NULL;
+    
+    pcmcia_release_configuration(link->handle);
+    pcmcia_release_io(link->handle, &link->io);
+    pcmcia_release_irq(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)
+		ide_release(link);
+	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)
+	    pcmcia_release_configuration(link->handle);
+	break;
+    case CS_EVENT_PM_RESUME:
+	link->state &= ~DEV_SUSPEND;
+	/* Fall through... */
+    case CS_EVENT_CARD_RESET:
+	if (DEV_OK(link))
+	    pcmcia_request_configuration(link->handle, &link->conf);
+	break;
+    }
+    return 0;
+} /* ide_event */
+
+static struct pcmcia_driver ide_cs_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "ide-cs",
+	},
+	.attach		= ide_attach,
+	.detach		= ide_detach,
+};
+
+static int __init init_ide_cs(void)
+{
+	return pcmcia_register_driver(&ide_cs_driver);
+}
+
+static void __exit exit_ide_cs(void)
+{
+	pcmcia_unregister_driver(&ide_cs_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_ide_cs);
+module_exit(exit_ide_cs);