[deliverable/linux.git] / drivers / net / pcmcia / com20020_cs.c

/*
 * Linux ARCnet driver - COM20020 PCMCIA support
 * 
 * Written 1994-1999 by Avery Pennarun,
 *    based on an ISA version by David Woodhouse.
 * Derived from ibmtr_cs.c by Steve Kipisz (pcmcia-cs 3.1.4)
 *    which was derived from pcnet_cs.c by David Hinds.
 * Some additional portions derived from skeleton.c by Donald Becker.
 *
 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
 *  for sponsoring the further development of this driver.
 *
 * **********************
 *
 * The original copyright of skeleton.c was as follows:
 *
 * skeleton.c Written 1993 by Donald Becker.
 * Copyright 1993 United States Government as represented by the
 * Director, National Security Agency.  This software may only be used
 * and distributed according to the terms of the GNU General Public License as
 * modified by SRC, incorporated herein by reference.
 * 
 * **********************
 * Changes:
 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
 * - reorganize kmallocs in com20020_attach, checking all for failure
 *   and releasing the previous allocations if one fails
 * **********************
 * 
 * For more details, see drivers/net/arcnet.c
 *
 * **********************
 */
#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/delay.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/arcdevice.h>
#include <linux/com20020.h>

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

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

#define VERSION "arcnet: COM20020 PCMCIA support loaded.\n"


static void regdump(struct net_device *dev)
{
#ifdef DEBUG
    int ioaddr = dev->base_addr;
    int count;
    
    netdev_dbg(dev, "register dump:\n");
    for (count = ioaddr; count < ioaddr + 16; count++)
    {
	if (!(count % 16))
	    pr_cont("%04X:", count);
	pr_cont(" %02X", inb(count));
    }
    pr_cont("\n");
    
    netdev_dbg(dev, "buffer0 dump:\n");
	/* set up the address register */
        count = 0;
	outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
	outb(count & 0xff, _ADDR_LO);
    
    for (count = 0; count < 256+32; count++)
    {
	if (!(count % 16))
	    pr_cont("%04X:", count);
	
	/* copy the data */
	pr_cont(" %02X", inb(_MEMDATA));
    }
    pr_cont("\n");
#endif
}


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

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

static int node;
static int timeout = 3;
static int backplane;
static int clockp;
static int clockm;

module_param(node, int, 0);
module_param(timeout, int, 0);
module_param(backplane, int, 0);
module_param(clockp, int, 0);
module_param(clockm, int, 0);

MODULE_LICENSE("GPL");

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

static int com20020_config(struct pcmcia_device *link);
static void com20020_release(struct pcmcia_device *link);

static void com20020_detach(struct pcmcia_device *p_dev);

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

typedef struct com20020_dev_t {
    struct net_device       *dev;
} com20020_dev_t;

static int com20020_probe(struct pcmcia_device *p_dev)
{
    com20020_dev_t *info;
    struct net_device *dev;
    struct arcnet_local *lp;

    dev_dbg(&p_dev->dev, "com20020_attach()\n");

    /* Create new network device */
    info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL);
    if (!info)
	goto fail_alloc_info;

    dev = alloc_arcdev("");
    if (!dev)
	goto fail_alloc_dev;

    lp = netdev_priv(dev);
    lp->timeout = timeout;
    lp->backplane = backplane;
    lp->clockp = clockp;
    lp->clockm = clockm & 3;
    lp->hw.owner = THIS_MODULE;

    /* fill in our module parameters as defaults */
    dev->dev_addr[0] = node;

    p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
    p_dev->resource[0]->end = 16;
    p_dev->config_flags |= CONF_ENABLE_IRQ;

    info->dev = dev;
    p_dev->priv = info;

    return com20020_config(p_dev);

fail_alloc_dev:
    kfree(info);
fail_alloc_info:
    return -ENOMEM;
} /* com20020_attach */

static void com20020_detach(struct pcmcia_device *link)
{
    struct com20020_dev_t *info = link->priv;
    struct net_device *dev = info->dev;

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

    dev_dbg(&link->dev, "com20020_detach\n");

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

    unregister_netdev(dev);

    /*
     * this is necessary because we register our IRQ separately
     * from card services.
     */
    if (dev->irq)
	    free_irq(dev->irq, dev);

    com20020_release(link);

    /* Unlink device structure, free bits */
    dev_dbg(&link->dev, "unlinking...\n");
    if (link->priv)
    {
	dev = info->dev;
	if (dev)
	{
	    dev_dbg(&link->dev, "kfree...\n");
	    free_netdev(dev);
	}
	dev_dbg(&link->dev, "kfree2...\n");
	kfree(info);
    }

} /* com20020_detach */

static int com20020_config(struct pcmcia_device *link)
{
    struct arcnet_local *lp;
    com20020_dev_t *info;
    struct net_device *dev;
    int i, ret;
    int ioaddr;

    info = link->priv;
    dev = info->dev;

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

    dev_dbg(&link->dev, "com20020_config\n");

    dev_dbg(&link->dev, "baseport1 is %Xh\n",
	    (unsigned int) link->resource[0]->start);

    i = -ENODEV;
    link->io_lines = 16;

    if (!link->resource[0]->start)
    {
	for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10)
	{
	    link->resource[0]->start = ioaddr;
	    i = pcmcia_request_io(link);
	    if (i == 0)
		break;
	}
    }
    else
	i = pcmcia_request_io(link);
    
    if (i != 0)
    {
	dev_dbg(&link->dev, "requestIO failed totally!\n");
	goto failed;
    }
	
    ioaddr = dev->base_addr = link->resource[0]->start;
    dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);

    dev_dbg(&link->dev, "request IRQ %d\n",
	    link->irq);
    if (!link->irq)
    {
	dev_dbg(&link->dev, "requestIRQ failed totally!\n");
	goto failed;
    }

    dev->irq = link->irq;

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

    if (com20020_check(dev))
    {
	regdump(dev);
	goto failed;
    }
    
    lp = netdev_priv(dev);
    lp->card_name = "PCMCIA COM20020";
    lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */

    SET_NETDEV_DEV(dev, &link->dev);

    i = com20020_found(dev, 0);	/* calls register_netdev */
    
    if (i != 0) {
	dev_notice(&link->dev,
		   "com20020_found() failed\n");
	goto failed;
    }

    netdev_dbg(dev, "port %#3lx, irq %d\n",
	       dev->base_addr, dev->irq);
    return 0;

failed:
    dev_dbg(&link->dev, "com20020_config failed...\n");
    com20020_release(link);
    return -ENODEV;
} /* com20020_config */

static void com20020_release(struct pcmcia_device *link)
{
	dev_dbg(&link->dev, "com20020_release\n");
	pcmcia_disable_device(link);
}

static int com20020_suspend(struct pcmcia_device *link)
{
	com20020_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

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

	return 0;
}

static int com20020_resume(struct pcmcia_device *link)
{
	com20020_dev_t *info = link->priv;
	struct net_device *dev = info->dev;

	if (link->open) {
		int ioaddr = dev->base_addr;
		struct arcnet_local *lp = netdev_priv(dev);
		ARCRESET;
	}

	return 0;
}

static const struct pcmcia_device_id com20020_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
			"PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
	PCMCIA_DEVICE_PROD_ID12("SoHard AG",
			"SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, com20020_ids);

static struct pcmcia_driver com20020_cs_driver = {
	.owner		= THIS_MODULE,
	.name		= "com20020_cs",
	.probe		= com20020_probe,
	.remove		= com20020_detach,
	.id_table	= com20020_ids,
	.suspend	= com20020_suspend,
	.resume		= com20020_resume,
};

static int __init init_com20020_cs(void)
{
	return pcmcia_register_driver(&com20020_cs_driver);
}

static void __exit exit_com20020_cs(void)
{
	pcmcia_unregister_driver(&com20020_cs_driver);
}

module_init(init_com20020_cs);
module_exit(exit_com20020_cs);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux ARCnet driver - COM20020 PCMCIA support
	3	*
	4	* Written 1994-1999 by Avery Pennarun,
	5	* based on an ISA version by David Woodhouse.
	6	* Derived from ibmtr_cs.c by Steve Kipisz (pcmcia-cs 3.1.4)
	7	* which was derived from pcnet_cs.c by David Hinds.
	8	* Some additional portions derived from skeleton.c by Donald Becker.
	9	*
	10	* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
	11	* for sponsoring the further development of this driver.
	12	*
	13	* **********************
	14	*
	15	* The original copyright of skeleton.c was as follows:
	16	*
	17	* skeleton.c Written 1993 by Donald Becker.
	18	* Copyright 1993 United States Government as represented by the
	19	* Director, National Security Agency. This software may only be used
	20	* and distributed according to the terms of the GNU General Public License as
	21	* modified by SRC, incorporated herein by reference.
	22	*
	23	* **********************
	24	* Changes:
	25	* Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
	26	* - reorganize kmallocs in com20020_attach, checking all for failure
	27	* and releasing the previous allocations if one fails
	28	* **********************
	29	*
	30	* For more details, see drivers/net/arcnet.c
	31	*
	32	* **********************
	33	*/
	34	#include <linux/kernel.h>
	35	#include <linux/init.h>
	36	#include <linux/ptrace.h>
	37	#include <linux/slab.h>
	38	#include <linux/string.h>
	39	#include <linux/timer.h>
	40	#include <linux/delay.h>
	41	#include <linux/module.h>
	42	#include <linux/netdevice.h>
	43	#include <linux/arcdevice.h>
	44	#include <linux/com20020.h>
	45
1da177e4 LT	46	#include <pcmcia/cistpl.h>
	47	#include <pcmcia/ds.h>
	48
	49	#include <asm/io.h>
	50	#include <asm/system.h>
	51
	52	#define VERSION "arcnet: COM20020 PCMCIA support loaded.\n"
	53
1da177e4 LT	54
	55	static void regdump(struct net_device *dev)
	56	{
636b8116	57	#ifdef DEBUG
1da177e4 LT	58	int ioaddr = dev->base_addr;
	59	int count;
	60
636b8116	61	netdev_dbg(dev, "register dump:\n");
1da177e4 LT	62	for (count = ioaddr; count < ioaddr + 16; count++)
	63	{
	64	if (!(count % 16))
636b8116 JP	65	pr_cont("%04X:", count);
636b8116 JP	66	pr_cont(" %02X", inb(count));
1da177e4	67	}
636b8116	68	pr_cont("\n");
1da177e4	69
636b8116	70	netdev_dbg(dev, "buffer0 dump:\n");
1da177e4 LT	71	/* set up the address register */
	72	count = 0;
	73	outb((count >> 8) \| RDDATAflag \| AUTOINCflag, _ADDR_HI);
	74	outb(count & 0xff, _ADDR_LO);
	75
	76	for (count = 0; count < 256+32; count++)
	77	{
	78	if (!(count % 16))
636b8116	79	pr_cont("%04X:", count);
1da177e4 LT	80
1da177e4 LT	81	/* copy the data */
636b8116	82	pr_cont(" %02X", inb(_MEMDATA));
1da177e4	83	}
636b8116 JP	84	pr_cont("\n");
636b8116 JP	85	#endif
1da177e4 LT	86	}
1da177e4 LT	87
1da177e4 LT	88
	89
	90	/====================================================================/
	91
	92	/* Parameters that can be set with 'insmod' */
	93
	94	static int node;
	95	static int timeout = 3;
	96	static int backplane;
	97	static int clockp;
	98	static int clockm;
	99
	100	module_param(node, int, 0);
	101	module_param(timeout, int, 0);
	102	module_param(backplane, int, 0);
	103	module_param(clockp, int, 0);
	104	module_param(clockm, int, 0);
	105
	106	MODULE_LICENSE("GPL");
	107
	108	/====================================================================/
	109
15b99ac1	110	static int com20020_config(struct pcmcia_device *link);
fba395ee	111	static void com20020_release(struct pcmcia_device *link);
1da177e4	112
cc3b4866	113	static void com20020_detach(struct pcmcia_device *p_dev);
1da177e4	114
1da177e4 LT	115	/====================================================================/
	116
	117	typedef struct com20020_dev_t {
	118	struct net_device *dev;
1da177e4 LT	119	} com20020_dev_t;
1da177e4 LT	120
15b99ac1	121	static int com20020_probe(struct pcmcia_device *p_dev)
1da177e4	122	{
1da177e4 LT	123	com20020_dev_t *info;
1da177e4 LT	124	struct net_device *dev;
1da177e4	125	struct arcnet_local *lp;
f8cfa618	126
dd0fab5b	127	dev_dbg(&p_dev->dev, "com20020_attach()\n");
1da177e4 LT	128
1da177e4 LT	129	/* Create new network device */
dd00cc48	130	info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL);
1da177e4 LT	131	if (!info)
	132	goto fail_alloc_info;
	133
	134	dev = alloc_arcdev("");
	135	if (!dev)
	136	goto fail_alloc_dev;
	137
4cf1653a	138	lp = netdev_priv(dev);
1da177e4 LT	139	lp->timeout = timeout;
	140	lp->backplane = backplane;
	141	lp->clockp = clockp;
	142	lp->clockm = clockm & 3;
	143	lp->hw.owner = THIS_MODULE;
	144
	145	/* fill in our module parameters as defaults */
	146	dev->dev_addr[0] = node;
	147
90abdc3b DB	148	p_dev->resource[0]->flags \|= IO_DATA_PATH_WIDTH_8;
90abdc3b DB	149	p_dev->resource[0]->end = 16;
1ac71e5a	150	p_dev->config_flags \|= CONF_ENABLE_IRQ;
1da177e4	151
5fa9167a	152	info->dev = dev;
fd238232	153	p_dev->priv = info;
1da177e4	154
15b99ac1	155	return com20020_config(p_dev);
1da177e4 LT	156
	157	fail_alloc_dev:
	158	kfree(info);
	159	fail_alloc_info:
f8cfa618	160	return -ENOMEM;
1da177e4 LT	161	} /* com20020_attach */
1da177e4 LT	162
fba395ee	163	static void com20020_detach(struct pcmcia_device *link)
1da177e4 LT	164	{
1da177e4 LT	165	struct com20020_dev_t *info = link->priv;
b4635811 DB	166	struct net_device *dev = info->dev;
b4635811 DB	167
dd0fab5b	168	dev_dbg(&link->dev, "detach...\n");
1da177e4	169
dd0fab5b	170	dev_dbg(&link->dev, "com20020_detach\n");
1da177e4	171
c7c2fa07	172	dev_dbg(&link->dev, "unregister...\n");
1da177e4	173
c7c2fa07	174	unregister_netdev(dev);
b4635811	175
c7c2fa07 DB	176	/*
	177	* this is necessary because we register our IRQ separately
	178	* from card services.
	179	*/
	180	if (dev->irq)
1da177e4	181	free_irq(dev->irq, dev);
1da177e4	182
e2d40963	183	com20020_release(link);
1da177e4	184
1da177e4	185	/* Unlink device structure, free bits */
dd0fab5b	186	dev_dbg(&link->dev, "unlinking...\n");
1da177e4 LT	187	if (link->priv)
	188	{
	189	dev = info->dev;
	190	if (dev)
	191	{
dd0fab5b	192	dev_dbg(&link->dev, "kfree...\n");
1da177e4 LT	193	free_netdev(dev);
1da177e4 LT	194	}
dd0fab5b	195	dev_dbg(&link->dev, "kfree2...\n");
1da177e4 LT	196	kfree(info);
1da177e4 LT	197	}
1da177e4 LT	198
	199	} /* com20020_detach */
	200
15b99ac1	201	static int com20020_config(struct pcmcia_device *link)
1da177e4 LT	202	{
1da177e4 LT	203	struct arcnet_local *lp;
1da177e4 LT	204	com20020_dev_t *info;
1da177e4 LT	205	struct net_device *dev;
dd0fab5b	206	int i, ret;
1da177e4 LT	207	int ioaddr;
1da177e4 LT	208
1da177e4 LT	209	info = link->priv;
	210	dev = info->dev;
	211
dd0fab5b	212	dev_dbg(&link->dev, "config...\n");
1da177e4	213
dd0fab5b	214	dev_dbg(&link->dev, "com20020_config\n");
1da177e4	215
90abdc3b DB	216	dev_dbg(&link->dev, "baseport1 is %Xh\n",
	217	(unsigned int) link->resource[0]->start);
	218
4c89e88b	219	i = -ENODEV;
90abdc3b DB	220	link->io_lines = 16;
	221
	222	if (!link->resource[0]->start)
1da177e4 LT	223	{
	224	for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10)
	225	{
90abdc3b DB	226	link->resource[0]->start = ioaddr;
90abdc3b DB	227	i = pcmcia_request_io(link);
4c89e88b	228	if (i == 0)
1da177e4 LT	229	break;
	230	}
	231	}
	232	else
90abdc3b	233	i = pcmcia_request_io(link);
1da177e4	234
4c89e88b	235	if (i != 0)
1da177e4	236	{
dd0fab5b	237	dev_dbg(&link->dev, "requestIO failed totally!\n");
1da177e4 LT	238	goto failed;
	239	}
	240
9a017a91	241	ioaddr = dev->base_addr = link->resource[0]->start;
dd0fab5b	242	dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
1da177e4	243
5fa9167a	244	dev_dbg(&link->dev, "request IRQ %d\n",
eb14120f DB	245	link->irq);
eb14120f DB	246	if (!link->irq)
1da177e4	247	{
dd0fab5b	248	dev_dbg(&link->dev, "requestIRQ failed totally!\n");
1da177e4 LT	249	goto failed;
	250	}
	251
eb14120f	252	dev->irq = link->irq;
1da177e4	253
1ac71e5a	254	ret = pcmcia_enable_device(link);
dd0fab5b DB	255	if (ret)
dd0fab5b DB	256	goto failed;
1da177e4 LT	257
	258	if (com20020_check(dev))
	259	{
	260	regdump(dev);
	261	goto failed;
	262	}
	263
4cf1653a	264	lp = netdev_priv(dev);
1da177e4 LT	265	lp->card_name = "PCMCIA COM20020";
	266	lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
	267
dd2e5a15	268	SET_NETDEV_DEV(dev, &link->dev);
1da177e4 LT	269
	270	i = com20020_found(dev, 0); /* calls register_netdev */
	271
	272	if (i != 0) {
636b8116 JP	273	dev_notice(&link->dev,
636b8116 JP	274	"com20020_found() failed\n");
1da177e4 LT	275	goto failed;
	276	}
	277
636b8116 JP	278	netdev_dbg(dev, "port %#3lx, irq %d\n",
636b8116 JP	279	dev->base_addr, dev->irq);
15b99ac1	280	return 0;
1da177e4	281
1da177e4	282	failed:
dd0fab5b	283	dev_dbg(&link->dev, "com20020_config failed...\n");
1da177e4	284	com20020_release(link);
15b99ac1	285	return -ENODEV;
1da177e4 LT	286	} /* com20020_config */
1da177e4 LT	287
fba395ee	288	static void com20020_release(struct pcmcia_device *link)
1da177e4	289	{
dd0fab5b	290	dev_dbg(&link->dev, "com20020_release\n");
fba395ee	291	pcmcia_disable_device(link);
1da177e4 LT	292	}
1da177e4 LT	293
fba395ee	294	static int com20020_suspend(struct pcmcia_device *link)
98e4c28b	295	{
98e4c28b DB	296	com20020_dev_t *info = link->priv;
	297	struct net_device *dev = info->dev;
	298
e2d40963	299	if (link->open)
8661bb5b	300	netif_device_detach(dev);
98e4c28b DB	301
	302	return 0;
	303	}
	304
fba395ee	305	static int com20020_resume(struct pcmcia_device *link)
98e4c28b	306	{
98e4c28b DB	307	com20020_dev_t *info = link->priv;
	308	struct net_device *dev = info->dev;
	309
e2d40963	310	if (link->open) {
8661bb5b	311	int ioaddr = dev->base_addr;
4cf1653a	312	struct arcnet_local *lp = netdev_priv(dev);
8661bb5b DB	313	ARCRESET;
8661bb5b DB	314	}
98e4c28b DB	315
	316	return 0;
	317	}
	318
25f8f54f	319	static const struct pcmcia_device_id com20020_ids[] = {
6bb1c39a MS	320	PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
	321	"PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
	322	PCMCIA_DEVICE_PROD_ID12("SoHard AG",
	323	"SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
7fb22bb4 DB	324	PCMCIA_DEVICE_NULL
	325	};
	326	MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
1da177e4 LT	327
	328	static struct pcmcia_driver com20020_cs_driver = {
	329	.owner = THIS_MODULE,
2e9b981a	330	.name = "com20020_cs",
15b99ac1	331	.probe = com20020_probe,
cc3b4866	332	.remove = com20020_detach,
7fb22bb4	333	.id_table = com20020_ids,
98e4c28b DB	334	.suspend = com20020_suspend,
98e4c28b DB	335	.resume = com20020_resume,
1da177e4 LT	336	};
	337
	338	static int __init init_com20020_cs(void)
	339	{
	340	return pcmcia_register_driver(&com20020_cs_driver);
	341	}
	342
	343	static void __exit exit_com20020_cs(void)
	344	{
	345	pcmcia_unregister_driver(&com20020_cs_driver);
1da177e4 LT	346	}
	347
	348	module_init(init_com20020_cs);
	349	module_exit(exit_com20020_cs);