Return to teles_cs.c CVS log

Up to [Development] / linux-2.6-xfs / drivers / isdn / hisax

Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

/* $Id: teles_cs.c,v 1.20 2007/09/12 17:09:56 tes.longdrop.melbourne.sgi.com Exp $ */
/*======================================================================

    A teles S0 PCMCIA client driver

    Based on skeleton by David Hinds, dhinds@allegro.stanford.edu
    Written by Christof Petig, christof.petig@wtal.de
    
    Also inspired by ELSA PCMCIA driver 
    by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
    
    Extentions to new hisax_pcmcia by Karsten Keil

    minor changes to be compatible with kernel 2.4.x
    by Jan.Schubert@GMX.li

======================================================================*/

#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 <asm/io.h>
#include <asm/system.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "hisax_cfg.h"

MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards");
MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de");
MODULE_LICENSE("GPL");

/*
   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 -- but it can then be enabled for specific
   modules at load time with a 'pc_debug=#' option to insmod.
*/

#ifdef PCMCIA_DEBUG
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
static char *version =
"teles_cs.c 2.10 2002/07/30 22:23:34 kkeil";
#else
#define DEBUG(n, args...)
#endif

/*====================================================================*/

/* Parameters that can be set with 'insmod' */

static int protocol = 2;        /* EURO-ISDN Default */
module_param(protocol, int, 0);

/*====================================================================*/

/*
   The event() function is this driver's Card Services event handler.
   It will be called by Card Services when an appropriate card status
   event is received.  The config() and release() entry points are
   used to configure or release a socket, in response to card insertion
   and ejection events.  They are invoked from the teles_cs event
   handler.
*/

static int teles_cs_config(struct pcmcia_device *link);
static void teles_cs_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 teles_detach(struct pcmcia_device *p_dev);

/*
   A linked list of "instances" of the teles_cs device.  Each actual
   PCMCIA card corresponds to one device instance, and is described
   by one struct pcmcia_device structure (defined in ds.h).

   You may not want to use a linked list for this -- for example, the
   memory card driver uses an array of struct pcmcia_device pointers, where minor
   device numbers are used to derive the corresponding array index.
*/

/*
   A driver needs to provide a dev_node_t structure for each device
   on a card.  In some cases, there is only one device per card (for
   example, ethernet cards, modems).  In other cases, there may be
   many actual or logical devices (SCSI adapters, memory cards with
   multiple partitions).  The dev_node_t structures need to be kept
   in a linked list starting at the 'dev' field of a struct pcmcia_device
   structure.  We allocate them in the card's private data structure,
   because they generally shouldn't be allocated dynamically.
   In this case, we also provide a flag to indicate if a device is
   "stopped" due to a power management event, or card ejection.  The
   device IO routines can use a flag like this to throttle IO to a
   card that is not ready to accept it.
*/

typedef struct local_info_t {
	struct pcmcia_device	*p_dev;
    dev_node_t          node;
    int                 busy;
    int			cardnr;
} local_info_t;

/*======================================================================

    teles_attach() creates an "instance" of the driver, allocatingx
    local data structures for one device.  The device is registered
    with Card Services.

    The dev_link structure is initialized, but we don't actually
    configure the card at this point -- we wait until we receive a
    card insertion event.

======================================================================*/

static int teles_probe(struct pcmcia_device *link)
{
    local_info_t *local;

    DEBUG(0, "teles_attach()\n");

    /* Allocate space for private device-specific data */
    local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
    if (!local) return -ENOMEM;
    local->cardnr = -1;

    local->p_dev = link;
    link->priv = local;

    /* Interrupt setup */
    link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
    link->irq.IRQInfo1 = IRQ_LEVEL_ID|IRQ_SHARE_ID;
    link->irq.Handler = NULL;

    /*
      General socket configuration defaults can go here.  In this
      client, we assume very little, and rely on the CIS for almost
      everything.  In most clients, many details (i.e., number, sizes,
      and attributes of IO windows) are fixed by the nature of the
      device, and can be hard-wired here.
    */
    link->io.NumPorts1 = 96;
    link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
    link->io.IOAddrLines = 5;

    link->conf.Attributes = CONF_ENABLE_IRQ;
    link->conf.IntType = INT_MEMORY_AND_IO;

    return teles_cs_config(link);
} /* teles_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 teles_detach(struct pcmcia_device *link)
{
	local_info_t *info = link->priv;

	DEBUG(0, "teles_detach(0x%p)\n", link);

	info->busy = 1;
	teles_cs_release(link);

	kfree(info);
} /* teles_detach */

/*======================================================================

    teles_cs_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.

======================================================================*/
static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple,
                     cisparse_t *parse)
{
    int i = pcmcia_get_tuple_data(handle, tuple);
    if (i != CS_SUCCESS) return i;
    return pcmcia_parse_tuple(handle, tuple, parse);
}

static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
                     cisparse_t *parse)
{
    int i = pcmcia_get_first_tuple(handle, tuple);
    if (i != CS_SUCCESS) return i;
    return get_tuple(handle, tuple, parse);
}

static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
                     cisparse_t *parse)
{
    int i = pcmcia_get_next_tuple(handle, tuple);
    if (i != CS_SUCCESS) return i;
    return get_tuple(handle, tuple, parse);
}

static int teles_cs_config(struct pcmcia_device *link)
{
    tuple_t tuple;
    cisparse_t parse;
    local_info_t *dev;
    int i, j, last_fn;
    u_short buf[128];
    cistpl_cftable_entry_t *cf = &parse.cftable_entry;
    IsdnCard_t icard;

    DEBUG(0, "teles_config(0x%p)\n", link);
    dev = link->priv;

    tuple.TupleData = (cisdata_t *)buf;
    tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
    tuple.Attributes = 0;
    tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
    i = first_tuple(link, &tuple, &parse);
    while (i == CS_SUCCESS) {
        if ( (cf->io.nwin > 0) && cf->io.win[0].base) {
            printk(KERN_INFO "(teles_cs: looks like the 96 model)\n");
            link->conf.ConfigIndex = cf->index;
            link->io.BasePort1 = cf->io.win[0].base;
            i = pcmcia_request_io(link, &link->io);
            if (i == CS_SUCCESS) break;
        } else {
          printk(KERN_INFO "(teles_cs: looks like the 97 model)\n");
          link->conf.ConfigIndex = cf->index;
          for (i = 0, j = 0x2f0; j > 0x100; j -= 0x10) {
            link->io.BasePort1 = j;
            i = pcmcia_request_io(link, &link->io);
            if (i == CS_SUCCESS) break;
          }
          break;
        }
        i = next_tuple(link, &tuple, &parse);
    }

    if (i != CS_SUCCESS) {
	last_fn = RequestIO;
	goto cs_failed;
    }

    i = pcmcia_request_irq(link, &link->irq);
    if (i != CS_SUCCESS) {
        link->irq.AssignedIRQ = 0;
	last_fn = RequestIRQ;
        goto cs_failed;
    }

    i = pcmcia_request_configuration(link, &link->conf);
    if (i != CS_SUCCESS) {
      last_fn = RequestConfiguration;
      goto cs_failed;
    }

    /* At this point, the dev_node_t structure(s) should be
       initialized and arranged in a linked list at link->dev. *//*  */
    sprintf(dev->node.dev_name, "teles");
    dev->node.major = dev->node.minor = 0x0;

    link->dev_node = &dev->node;

    /* Finally, report what we've done */
    printk(KERN_INFO "%s: index 0x%02x:",
           dev->node.dev_name, link->conf.ConfigIndex);
    if (link->conf.Attributes & CONF_ENABLE_IRQ)
        printk(", irq %d", link->irq.AssignedIRQ);
    if (link->io.NumPorts1)
        printk(", io 0x%04x-0x%04x", link->io.BasePort1,
               link->io.BasePort1+link->io.NumPorts1-1);
    if (link->io.NumPorts2)
        printk(" & 0x%04x-0x%04x", link->io.BasePort2,
               link->io.BasePort2+link->io.NumPorts2-1);
    printk("\n");

    icard.para[0] = link->irq.AssignedIRQ;
    icard.para[1] = link->io.BasePort1;
    icard.protocol = protocol;
    icard.typ = ISDN_CTYPE_TELESPCMCIA;
    
    i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard);
    if (i < 0) {
    	printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n",
    		i, link->io.BasePort1);
    	teles_cs_release(link);
	return -ENODEV;
    }

    ((local_info_t*)link->priv)->cardnr = i;
    return 0;

cs_failed:
    cs_error(link, last_fn, i);
    teles_cs_release(link);
    return -ENODEV;
} /* teles_cs_config */

/*======================================================================

    After a card is removed, teles_cs_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.

======================================================================*/

static void teles_cs_release(struct pcmcia_device *link)
{
    local_info_t *local = link->priv;

    DEBUG(0, "teles_cs_release(0x%p)\n", link);

    if (local) {
    	if (local->cardnr >= 0) {
    	    /* no unregister function with hisax */
	    HiSax_closecard(local->cardnr);
	}
    }

    pcmcia_disable_device(link);
} /* teles_cs_release */

static int teles_suspend(struct pcmcia_device *link)
{
	local_info_t *dev = link->priv;

        dev->busy = 1;

	return 0;
}

static int teles_resume(struct pcmcia_device *link)
{
	local_info_t *dev = link->priv;

        dev->busy = 0;

	return 0;
}


static struct pcmcia_device_id teles_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119),
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, teles_ids);

static struct pcmcia_driver teles_cs_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
		.name	= "teles_cs",
	},
	.probe		= teles_probe,
	.remove		= teles_detach,
	.id_table       = teles_ids,
	.suspend	= teles_suspend,
	.resume		= teles_resume,
};

static int __init init_teles_cs(void)
{
	return pcmcia_register_driver(&teles_cs_driver);
}

static void __exit exit_teles_cs(void)
{
	pcmcia_unregister_driver(&teles_cs_driver);
}

module_init(init_teles_cs);
module_exit(exit_teles_cs);