[mirror_ubuntu-artful-kernel.git] / drivers / net / pcmcia / ibmtr_cs.c

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

    A PCMCIA token-ring driver for IBM-based cards

    This driver supports the IBM PCMCIA Token-Ring Card.
    Written by Steve Kipisz, kipisz@vnet.ibm.com or
                             bungy@ibm.net

    Written 1995,1996.

    This code is based on pcnet_cs.c from David Hinds.
    
    V2.2.0 February 1999 - Mike Phillips phillim@amtrak.com

    Linux V2.2.x presented significant changes to the underlying
    ibmtr.c code.  Mainly the code became a lot more organized and
    modular.

    This caused the old PCMCIA Token Ring driver to give up and go 
    home early. Instead of just patching the old code to make it 
    work, the PCMCIA code has been streamlined, updated and possibly
    improved.

    This code now only contains code required for the Card Services.
    All we do here is set the card up enough so that the real ibmtr.c
    driver can find it and work with it properly.

    i.e. We set up the io port, irq, mmio memory and shared ram
    memory.  This enables ibmtr_probe in ibmtr.c to find the card and
    configure it as though it was a normal ISA and/or PnP card.

    CHANGES

    v2.2.5 April 1999 Mike Phillips (phillim@amtrak.com)
    Obscure bug fix, required changed to ibmtr.c not ibmtr_cs.c
    
    v2.2.7 May 1999 Mike Phillips (phillim@amtrak.com)
    Updated to version 2.2.7 to match the first version of the kernel
    that the modification to ibmtr.c were incorporated into.
    
    v2.2.17 July 2000 Burt Silverman (burts@us.ibm.com)
    Address translation feature of PCMCIA controller is usable so
    memory windows can be placed in High memory (meaning above
    0xFFFFF.)

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

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/module.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>
#include <linux/ibmtr.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

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

#define PCMCIA
#include "../tokenring/ibmtr.c"


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

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

/* MMIO base address */
static u_long mmiobase = 0xce000;

/* SRAM base address */
static u_long srambase = 0xd0000;

/* SRAM size 8,16,32,64 */
static u_long sramsize = 64;

/* Ringspeed 4,16 */
static int ringspeed = 16;

module_param(mmiobase, ulong, 0);
module_param(srambase, ulong, 0);
module_param(sramsize, ulong, 0);
module_param(ringspeed, int, 0);
MODULE_LICENSE("GPL");

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

static int ibmtr_config(struct pcmcia_device *link);
static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase);
static void ibmtr_release(struct pcmcia_device *link);
static void ibmtr_detach(struct pcmcia_device *p_dev);

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

typedef struct ibmtr_dev_t {
	struct pcmcia_device	*p_dev;
	struct net_device	*dev;
	struct tok_info		*ti;
} ibmtr_dev_t;

static void netdev_get_drvinfo(struct net_device *dev,
			       struct ethtool_drvinfo *info)
{
	strcpy(info->driver, "ibmtr_cs");
}

static const struct ethtool_ops netdev_ethtool_ops = {
	.get_drvinfo		= netdev_get_drvinfo,
};

static irqreturn_t ibmtr_interrupt(int irq, void *dev_id) {
	ibmtr_dev_t *info = dev_id;
	struct net_device *dev = info->dev;
	return tok_interrupt(irq, dev);
};

static int __devinit ibmtr_attach(struct pcmcia_device *link)
{
    ibmtr_dev_t *info;
    struct net_device *dev;

    dev_dbg(&link->dev, "ibmtr_attach()\n");

    /* Create new token-ring device */
    info = kzalloc(sizeof(*info), GFP_KERNEL);
    if (!info) return -ENOMEM;
    dev = alloc_trdev(sizeof(struct tok_info));
    if (!dev) {
	kfree(info);
	return -ENOMEM;
    }

    info->p_dev = link;
    link->priv = info;
    info->ti = netdev_priv(dev);

    link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
    link->resource[0]->end = 4;
    link->config_flags |= CONF_ENABLE_IRQ;
    link->config_regs = PRESENT_OPTION;

    info->dev = dev;

    SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);

    return ibmtr_config(link);
} /* ibmtr_attach */

static void ibmtr_detach(struct pcmcia_device *link)
{
    struct ibmtr_dev_t *info = link->priv;
    struct net_device *dev = info->dev;
     struct tok_info *ti = netdev_priv(dev);

    dev_dbg(&link->dev, "ibmtr_detach\n");
    
    /* 
     * When the card removal interrupt hits tok_interrupt(), 
     * bail out early, so we don't crash the machine 
     */
    ti->sram_phys |= 1;

    unregister_netdev(dev);
    
    del_timer_sync(&(ti->tr_timer));

    ibmtr_release(link);

    free_netdev(dev);
    kfree(info);
} /* ibmtr_detach */

static int __devinit ibmtr_config(struct pcmcia_device *link)
{
    ibmtr_dev_t *info = link->priv;
    struct net_device *dev = info->dev;
    struct tok_info *ti = netdev_priv(dev);
    int i, ret;

    dev_dbg(&link->dev, "ibmtr_config\n");

    link->io_lines = 16;
    link->config_index = 0x61;

    /* Determine if this is PRIMARY or ALTERNATE. */

    /* Try PRIMARY card at 0xA20-0xA23 */
    link->resource[0]->start = 0xA20;
    i = pcmcia_request_io(link);
    if (i != 0) {
	/* Couldn't get 0xA20-0xA23.  Try ALTERNATE at 0xA24-0xA27. */
	link->resource[0]->start = 0xA24;
	ret = pcmcia_request_io(link);
	if (ret)
		goto failed;
    }
    dev->base_addr = link->resource[0]->start;

    ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt);
    if (ret)
	    goto failed;
    dev->irq = link->irq;
    ti->irq = link->irq;
    ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);

    /* Allocate the MMIO memory window */
    link->resource[2]->flags |= WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    link->resource[2]->flags |= WIN_USE_WAIT;
    link->resource[2]->start = 0;
    link->resource[2]->end = 0x2000;
    ret = pcmcia_request_window(link, link->resource[2], 250);
    if (ret)
	    goto failed;

    ret = pcmcia_map_mem_page(link, link->resource[2], mmiobase);
    if (ret)
	    goto failed;
    ti->mmio = ioremap(link->resource[2]->start,
		    resource_size(link->resource[2]));

    /* Allocate the SRAM memory window */
    link->resource[3]->flags = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
    link->resource[3]->flags |= WIN_USE_WAIT;
    link->resource[3]->start = 0;
    link->resource[3]->end = sramsize * 1024;
    ret = pcmcia_request_window(link, link->resource[3], 250);
    if (ret)
	    goto failed;

    ret = pcmcia_map_mem_page(link, link->resource[3], srambase);
    if (ret)
	    goto failed;

    ti->sram_base = srambase >> 12;
    ti->sram_virt = ioremap(link->resource[3]->start,
		    resource_size(link->resource[3]));
    ti->sram_phys = link->resource[3]->start;

    ret = pcmcia_enable_device(link);
    if (ret)
	    goto failed;

    /*  Set up the Token-Ring Controller Configuration Register and
        turn on the card.  Check the "Local Area Network Credit Card
        Adapters Technical Reference"  SC30-3585 for this info.  */
    ibmtr_hw_setup(dev, mmiobase);

    SET_NETDEV_DEV(dev, &link->dev);

    i = ibmtr_probe_card(dev);
    if (i != 0) {
	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
	goto failed;
    }

    printk(KERN_INFO
	   "%s: port %#3lx, irq %d,  mmio %#5lx, sram %#5lx, hwaddr=%pM\n",
           dev->name, dev->base_addr, dev->irq,
	   (u_long)ti->mmio, (u_long)(ti->sram_base << 12),
	   dev->dev_addr);
    return 0;

failed:
    ibmtr_release(link);
    return -ENODEV;
} /* ibmtr_config */

static void ibmtr_release(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	dev_dbg(&link->dev, "ibmtr_release\n");

	if (link->resource[2]->end) {
		struct tok_info *ti = netdev_priv(dev);
		iounmap(ti->mmio);
	}
	pcmcia_disable_device(link);
}

static int ibmtr_suspend(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	if (link->open)
		netif_device_detach(dev);

	return 0;
}

static int __devinit ibmtr_resume(struct pcmcia_device *link)
{
	ibmtr_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	if (link->open) {
		ibmtr_probe(dev);	/* really? */
		netif_device_attach(dev);
	}

	return 0;
}


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

static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
{
    int i;

    /* Bizarre IBM behavior, there are 16 bits of information we
       need to set, but the card only allows us to send 4 bits at a 
       time.  For each byte sent to base_addr, bits 7-4 tell the
       card which part of the 16 bits we are setting, bits 3-0 contain 
       the actual information */

    /* First nibble provides 4 bits of mmio */
    i = (mmiobase >> 16) & 0x0F;
    outb(i, dev->base_addr);

    /* Second nibble provides 3 bits of mmio */
    i = 0x10 | ((mmiobase >> 12) & 0x0E);
    outb(i, dev->base_addr);

    /* Third nibble, hard-coded values */
    i = 0x26;
    outb(i, dev->base_addr);

    /* Fourth nibble sets shared ram page size */

    /* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */          
    i = (sramsize >> 4) & 0x07;
    i = ((i == 4) ? 3 : i) << 2;
    i |= 0x30;

    if (ringspeed == 16)
	i |= 2;
    if (dev->base_addr == 0xA24)
	i |= 1;
    outb(i, dev->base_addr);

    /* 0x40 will release the card for use */
    outb(0x40, dev->base_addr);
}

static struct pcmcia_device_id ibmtr_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);

static struct pcmcia_driver ibmtr_cs_driver = {
	.owner		= THIS_MODULE,
	.name		= "ibmtr_cs",
	.probe		= ibmtr_attach,
	.remove		= ibmtr_detach,
	.id_table       = ibmtr_ids,
	.suspend	= ibmtr_suspend,
	.resume		= ibmtr_resume,
};

static int __init init_ibmtr_cs(void)
{
	return pcmcia_register_driver(&ibmtr_cs_driver);
}

static void __exit exit_ibmtr_cs(void)
{
	pcmcia_unregister_driver(&ibmtr_cs_driver);
}

module_init(init_ibmtr_cs);
module_exit(exit_ibmtr_cs);
Commit	Line	Data
1da177e4 LT	1	/*======================================================================
	2
	3	A PCMCIA token-ring driver for IBM-based cards
	4
	5	This driver supports the IBM PCMCIA Token-Ring Card.
	6	Written by Steve Kipisz, kipisz@vnet.ibm.com or
	7	bungy@ibm.net
	8
	9	Written 1995,1996.
	10
	11	This code is based on pcnet_cs.c from David Hinds.
	12
	13	V2.2.0 February 1999 - Mike Phillips phillim@amtrak.com
	14
	15	Linux V2.2.x presented significant changes to the underlying
	16	ibmtr.c code. Mainly the code became a lot more organized and
	17	modular.
	18
	19	This caused the old PCMCIA Token Ring driver to give up and go
	20	home early. Instead of just patching the old code to make it
	21	work, the PCMCIA code has been streamlined, updated and possibly
	22	improved.
	23
	24	This code now only contains code required for the Card Services.
	25	All we do here is set the card up enough so that the real ibmtr.c
	26	driver can find it and work with it properly.
	27
	28	i.e. We set up the io port, irq, mmio memory and shared ram
	29	memory. This enables ibmtr_probe in ibmtr.c to find the card and
	30	configure it as though it was a normal ISA and/or PnP card.
	31
	32	CHANGES
	33
	34	v2.2.5 April 1999 Mike Phillips (phillim@amtrak.com)
	35	Obscure bug fix, required changed to ibmtr.c not ibmtr_cs.c
	36
	37	v2.2.7 May 1999 Mike Phillips (phillim@amtrak.com)
	38	Updated to version 2.2.7 to match the first version of the kernel
	39	that the modification to ibmtr.c were incorporated into.
	40
	41	v2.2.17 July 2000 Burt Silverman (burts@us.ibm.com)
	42	Address translation feature of PCMCIA controller is usable so
	43	memory windows can be placed in High memory (meaning above
	44	0xFFFFF.)
	45
	46	======================================================================*/
	47
	48	#include <linux/kernel.h>
	49	#include <linux/init.h>
	50	#include <linux/ptrace.h>
	51	#include <linux/slab.h>
	52	#include <linux/string.h>
	53	#include <linux/timer.h>
	54	#include <linux/module.h>
	55	#include <linux/ethtool.h>
	56	#include <linux/netdevice.h>
	57	#include <linux/trdevice.h>
	58	#include <linux/ibmtr.h>
	59
1da177e4 LT	60	#include <pcmcia/cistpl.h>
	61	#include <pcmcia/ds.h>
	62
	63	#include <asm/uaccess.h>
	64	#include <asm/io.h>
	65	#include <asm/system.h>
	66
	67	#define PCMCIA
	68	#include "../tokenring/ibmtr.c"
	69
1da177e4 LT	70
	71	/====================================================================/
	72
	73	/* Parameters that can be set with 'insmod' */
	74
	75	/* MMIO base address */
	76	static u_long mmiobase = 0xce000;
	77
	78	/* SRAM base address */
	79	static u_long srambase = 0xd0000;
	80
	81	/* SRAM size 8,16,32,64 */
	82	static u_long sramsize = 64;
	83
	84	/* Ringspeed 4,16 */
	85	static int ringspeed = 16;
	86
	87	module_param(mmiobase, ulong, 0);
	88	module_param(srambase, ulong, 0);
	89	module_param(sramsize, ulong, 0);
	90	module_param(ringspeed, int, 0);
	91	MODULE_LICENSE("GPL");
	92
	93	/====================================================================/
	94
15b99ac1	95	static int ibmtr_config(struct pcmcia_device *link);
1da177e4	96	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase);
fba395ee	97	static void ibmtr_release(struct pcmcia_device *link);
cc3b4866	98	static void ibmtr_detach(struct pcmcia_device *p_dev);
1da177e4	99
1da177e4 LT	100	/====================================================================/
	101
	102	typedef struct ibmtr_dev_t {
fd238232	103	struct pcmcia_device *p_dev;
cdb13808 DB	104	struct net_device *dev;
cdb13808 DB	105	struct tok_info *ti;
1da177e4 LT	106	} ibmtr_dev_t;
	107
	108	static void netdev_get_drvinfo(struct net_device *dev,
	109	struct ethtool_drvinfo *info)
	110	{
	111	strcpy(info->driver, "ibmtr_cs");
	112	}
	113
7282d491	114	static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4 LT	115	.get_drvinfo = netdev_get_drvinfo,
	116	};
	117
5fa9167a DB	118	static irqreturn_t ibmtr_interrupt(int irq, void *dev_id) {
	119	ibmtr_dev_t *info = dev_id;
	120	struct net_device *dev = info->dev;
	121	return tok_interrupt(irq, dev);
	122	};
	123
abf0437b	124	static int __devinit ibmtr_attach(struct pcmcia_device *link)
1da177e4 LT	125	{
1da177e4 LT	126	ibmtr_dev_t *info;
1da177e4	127	struct net_device *dev;
fba395ee	128
dd0fab5b	129	dev_dbg(&link->dev, "ibmtr_attach()\n");
1da177e4 LT	130
1da177e4 LT	131	/* Create new token-ring device */
dd00cc48	132	info = kzalloc(sizeof(*info), GFP_KERNEL);
f8cfa618	133	if (!info) return -ENOMEM;
1da177e4	134	dev = alloc_trdev(sizeof(struct tok_info));
f8cfa618 DB	135	if (!dev) {
	136	kfree(info);
	137	return -ENOMEM;
	138	}
1da177e4	139
fba395ee	140	info->p_dev = link;
1da177e4 LT	141	link->priv = info;
	142	info->ti = netdev_priv(dev);
	143
90abdc3b DB	144	link->resource[0]->flags \|= IO_DATA_PATH_WIDTH_8;
90abdc3b DB	145	link->resource[0]->end = 4;
1ac71e5a	146	link->config_flags \|= CONF_ENABLE_IRQ;
7feabb64	147	link->config_regs = PRESENT_OPTION;
1da177e4	148
5fa9167a	149	info->dev = dev;
1da177e4	150
fd238232	151	SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
1da177e4	152
15b99ac1	153	return ibmtr_config(link);
1da177e4 LT	154	} /* ibmtr_attach */
1da177e4 LT	155
fba395ee	156	static void ibmtr_detach(struct pcmcia_device *link)
1da177e4 LT	157	{
1da177e4 LT	158	struct ibmtr_dev_t *info = link->priv;
b4635811	159	struct net_device *dev = info->dev;
5bebf82f	160	struct tok_info *ti = netdev_priv(dev);
1da177e4	161
dd0fab5b	162	dev_dbg(&link->dev, "ibmtr_detach\n");
5bebf82f PW	163
	164	/*
	165	* When the card removal interrupt hits tok_interrupt(),
	166	* bail out early, so we don't crash the machine
	167	*/
	168	ti->sram_phys \|= 1;
1da177e4	169
c7c2fa07	170	unregister_netdev(dev);
5bebf82f PW	171
5bebf82f PW	172	del_timer_sync(&(ti->tr_timer));
e2d40963 DB	173
e2d40963 DB	174	ibmtr_release(link);
1da177e4	175
1da177e4	176	free_netdev(dev);
b4635811	177	kfree(info);
1da177e4 LT	178	} /* ibmtr_detach */
1da177e4 LT	179
abf0437b	180	static int __devinit ibmtr_config(struct pcmcia_device *link)
1da177e4	181	{
1da177e4 LT	182	ibmtr_dev_t *info = link->priv;
	183	struct net_device *dev = info->dev;
	184	struct tok_info *ti = netdev_priv(dev);
dd0fab5b	185	int i, ret;
1da177e4	186
dd0fab5b	187	dev_dbg(&link->dev, "ibmtr_config\n");
1da177e4	188
90abdc3b	189	link->io_lines = 16;
7feabb64	190	link->config_index = 0x61;
1da177e4 LT	191
	192	/* Determine if this is PRIMARY or ALTERNATE. */
	193
	194	/* Try PRIMARY card at 0xA20-0xA23 */
90abdc3b DB	195	link->resource[0]->start = 0xA20;
90abdc3b DB	196	i = pcmcia_request_io(link);
4c89e88b	197	if (i != 0) {
1da177e4	198	/* Couldn't get 0xA20-0xA23. Try ALTERNATE at 0xA24-0xA27. */
90abdc3b DB	199	link->resource[0]->start = 0xA24;
90abdc3b DB	200	ret = pcmcia_request_io(link);
dd0fab5b DB	201	if (ret)
dd0fab5b DB	202	goto failed;
1da177e4	203	}
9a017a91	204	dev->base_addr = link->resource[0]->start;
1da177e4	205
eb14120f	206	ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt);
dd0fab5b DB	207	if (ret)
dd0fab5b DB	208	goto failed;
eb14120f DB	209	dev->irq = link->irq;
eb14120f DB	210	ti->irq = link->irq;
1da177e4 LT	211	ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);
	212
	213	/* Allocate the MMIO memory window */
cdb13808 DB	214	link->resource[2]->flags \|= WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	215	link->resource[2]->flags \|= WIN_USE_WAIT;
	216	link->resource[2]->start = 0;
	217	link->resource[2]->end = 0x2000;
	218	ret = pcmcia_request_window(link, link->resource[2], 250);
dd0fab5b DB	219	if (ret)
dd0fab5b DB	220	goto failed;
1da177e4	221
cdb13808	222	ret = pcmcia_map_mem_page(link, link->resource[2], mmiobase);
dd0fab5b DB	223	if (ret)
dd0fab5b DB	224	goto failed;
cdb13808 DB	225	ti->mmio = ioremap(link->resource[2]->start,
cdb13808 DB	226	resource_size(link->resource[2]));
1da177e4 LT	227
1da177e4 LT	228	/* Allocate the SRAM memory window */
cdb13808 DB	229	link->resource[3]->flags = WIN_DATA_WIDTH_16\|WIN_MEMORY_TYPE_CM\|WIN_ENABLE;
	230	link->resource[3]->flags \|= WIN_USE_WAIT;
	231	link->resource[3]->start = 0;
	232	link->resource[3]->end = sramsize * 1024;
	233	ret = pcmcia_request_window(link, link->resource[3], 250);
dd0fab5b DB	234	if (ret)
dd0fab5b DB	235	goto failed;
1da177e4	236
cdb13808	237	ret = pcmcia_map_mem_page(link, link->resource[3], srambase);
dd0fab5b DB	238	if (ret)
dd0fab5b DB	239	goto failed;
1da177e4	240
b5cb259e	241	ti->sram_base = srambase >> 12;
cdb13808 DB	242	ti->sram_virt = ioremap(link->resource[3]->start,
	243	resource_size(link->resource[3]));
	244	ti->sram_phys = link->resource[3]->start;
1da177e4	245
1ac71e5a	246	ret = pcmcia_enable_device(link);
dd0fab5b DB	247	if (ret)
dd0fab5b DB	248	goto failed;
1da177e4 LT	249
	250	/* Set up the Token-Ring Controller Configuration Register and
	251	turn on the card. Check the "Local Area Network Credit Card
	252	Adapters Technical Reference" SC30-3585 for this info. */
	253	ibmtr_hw_setup(dev, mmiobase);
	254
dd2e5a15	255	SET_NETDEV_DEV(dev, &link->dev);
1da177e4 LT	256
	257	i = ibmtr_probe_card(dev);
	258	if (i != 0) {
	259	printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n");
1da177e4 LT	260	goto failed;
	261	}
	262
ad361c98 JP	263	printk(KERN_INFO
	264	"%s: port %#3lx, irq %d, mmio %#5lx, sram %#5lx, hwaddr=%pM\n",
	265	dev->name, dev->base_addr, dev->irq,
	266	(u_long)ti->mmio, (u_long)(ti->sram_base << 12),
	267	dev->dev_addr);
15b99ac1	268	return 0;
1da177e4	269
1da177e4 LT	270	failed:
1da177e4 LT	271	ibmtr_release(link);
15b99ac1	272	return -ENODEV;
1da177e4 LT	273	} /* ibmtr_config */
1da177e4 LT	274
fba395ee	275	static void ibmtr_release(struct pcmcia_device *link)
1da177e4	276	{
5f2a71fc DB	277	ibmtr_dev_t *info = link->priv;
5f2a71fc DB	278	struct net_device *dev = info->dev;
1da177e4	279
dd0fab5b	280	dev_dbg(&link->dev, "ibmtr_release\n");
1da177e4	281
cdb13808	282	if (link->resource[2]->end) {
5f2a71fc DB	283	struct tok_info *ti = netdev_priv(dev);
5f2a71fc DB	284	iounmap(ti->mmio);
5f2a71fc	285	}
fba395ee	286	pcmcia_disable_device(link);
1da177e4 LT	287	}
1da177e4 LT	288
fba395ee	289	static int ibmtr_suspend(struct pcmcia_device *link)
98e4c28b	290	{
98e4c28b DB	291	ibmtr_dev_t *info = link->priv;
	292	struct net_device *dev = info->dev;
	293
e2d40963	294	if (link->open)
8661bb5b	295	netif_device_detach(dev);
98e4c28b DB	296
	297	return 0;
	298	}
	299
8814b505	300	static int __devinit ibmtr_resume(struct pcmcia_device *link)
98e4c28b	301	{
98e4c28b DB	302	ibmtr_dev_t *info = link->priv;
	303	struct net_device *dev = info->dev;
	304
e2d40963	305	if (link->open) {
8661bb5b DB	306	ibmtr_probe(dev); /* really? */
	307	netif_device_attach(dev);
	308	}
98e4c28b DB	309
	310	return 0;
	311	}
	312
	313
1da177e4 LT	314	/====================================================================/
	315
	316	static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase)
	317	{
	318	int i;
	319
	320	/* Bizarre IBM behavior, there are 16 bits of information we
	321	need to set, but the card only allows us to send 4 bits at a
	322	time. For each byte sent to base_addr, bits 7-4 tell the
	323	card which part of the 16 bits we are setting, bits 3-0 contain
	324	the actual information */
	325
	326	/* First nibble provides 4 bits of mmio */
	327	i = (mmiobase >> 16) & 0x0F;
	328	outb(i, dev->base_addr);
	329
	330	/* Second nibble provides 3 bits of mmio */
	331	i = 0x10 \| ((mmiobase >> 12) & 0x0E);
	332	outb(i, dev->base_addr);
	333
	334	/* Third nibble, hard-coded values */
	335	i = 0x26;
	336	outb(i, dev->base_addr);
	337
	338	/* Fourth nibble sets shared ram page size */
	339
	340	/* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */
	341	i = (sramsize >> 4) & 0x07;
	342	i = ((i == 4) ? 3 : i) << 2;
	343	i \|= 0x30;
	344
	345	if (ringspeed == 16)
	346	i \|= 2;
	347	if (dev->base_addr == 0xA24)
	348	i \|= 1;
	349	outb(i, dev->base_addr);
	350
	351	/* 0x40 will release the card for use */
	352	outb(0x40, dev->base_addr);
1da177e4 LT	353	}
1da177e4 LT	354
469bf2b9 DB	355	static struct pcmcia_device_id ibmtr_ids[] = {
	356	PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e),
	357	PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47),
	358	PCMCIA_DEVICE_NULL,
	359	};
	360	MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids);
	361
1da177e4 LT	362	static struct pcmcia_driver ibmtr_cs_driver = {
1da177e4 LT	363	.owner = THIS_MODULE,
2e9b981a	364	.name = "ibmtr_cs",
f8cfa618	365	.probe = ibmtr_attach,
cc3b4866	366	.remove = ibmtr_detach,
469bf2b9	367	.id_table = ibmtr_ids,
98e4c28b DB	368	.suspend = ibmtr_suspend,
98e4c28b DB	369	.resume = ibmtr_resume,
1da177e4 LT	370	};
	371
	372	static int __init init_ibmtr_cs(void)
	373	{
	374	return pcmcia_register_driver(&ibmtr_cs_driver);
	375	}
	376
	377	static void __exit exit_ibmtr_cs(void)
	378	{
	379	pcmcia_unregister_driver(&ibmtr_cs_driver);
1da177e4 LT	380	}
	381
	382	module_init(init_ibmtr_cs);
	383	module_exit(exit_ibmtr_cs);