[linux.git] / drivers / scsi / sim710.c

/*
 * sim710.c - Copyright (C) 1999 Richard Hirst <[email protected]>
 *
 *----------------------------------------------------------------------------
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by 
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------------
 *
 * MCA card detection code by Trent McNair.
 * Fixes to not explicitly nul bss data from Xavier Bestel.
 * Some multiboard fixes from Rolf Eike Beer.
 * Auto probing of EISA config space from Trevor Hemsley.
 *
 * Rewritten to use 53c700.c by [email protected]
 *
 */

#include <linux/module.h>

#include <linux/blkdev.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/mca.h>
#include <linux/eisa.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_spi.h>

#include "53c700.h"


/* Must be enough for both EISA and MCA */
#define MAX_SLOTS 8
static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };

static char *sim710;		/* command line passed by insmod */

MODULE_AUTHOR("Richard Hirst");
MODULE_DESCRIPTION("Simple NCR53C710 driver");
MODULE_LICENSE("GPL");

module_param(sim710, charp, 0);

#ifdef MODULE
#define ARG_SEP ' '
#else
#define ARG_SEP ','
#endif

static __init int
param_setup(char *str)
{
	char *pos = str, *next;
	int slot = -1;

	while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
		int val = (int)simple_strtoul(++next, NULL, 0);

		if(!strncmp(pos, "slot:", 5))
			slot = val;
		else if(!strncmp(pos, "id:", 3)) {
			if(slot == -1) {
				printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
			} else if(slot >= MAX_SLOTS) {
				printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
			} else {
				id_array[slot] = val;
			}
		}
		if((pos = strchr(pos, ARG_SEP)) != NULL)
			pos++;
	}
	return 1;
}
__setup("sim710=", param_setup);

static struct scsi_host_template sim710_driver_template = {
	.name			= "LSI (Symbios) 710 MCA/EISA",
	.proc_name		= "sim710",
	.this_id		= 7,
	.module			= THIS_MODULE,
};

static __devinit int
sim710_probe_common(struct device *dev, unsigned long base_addr,
		    int irq, int clock, int differential, int scsi_id)
{
	struct Scsi_Host * host = NULL;
	struct NCR_700_Host_Parameters *hostdata =
		kzalloc(sizeof(struct NCR_700_Host_Parameters),	GFP_KERNEL);

	printk(KERN_NOTICE "sim710: %s\n", dev_name(dev));
	printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
	       irq, clock, base_addr, scsi_id);

	if(hostdata == NULL) {
		printk(KERN_ERR "sim710: Failed to allocate host data\n");
		goto out;
	}

	if(request_region(base_addr, 64, "sim710") == NULL) {
		printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
		       base_addr);
		goto out_free;
	}

	/* Fill in the three required pieces of hostdata */
	hostdata->base = ioport_map(base_addr, 64);
	hostdata->differential = differential;
	hostdata->clock = clock;
	hostdata->chip710 = 1;
	hostdata->burst_length = 8;

	/* and register the chip */
	if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
	   == NULL) {
		printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
		goto out_release;
	}
	host->this_id = scsi_id;
	host->base = base_addr;
	host->irq = irq;
	if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
		printk(KERN_ERR "sim710: request_irq failed\n");
		goto out_put_host;
	}

	dev_set_drvdata(dev, host);
	scsi_scan_host(host);

	return 0;

 out_put_host:
	scsi_host_put(host);
 out_release:
	release_region(base_addr, 64);
 out_free:
	kfree(hostdata);
 out:
	return -ENODEV;
}

static __devexit int
sim710_device_remove(struct device *dev)
{
	struct Scsi_Host *host = dev_get_drvdata(dev);
	struct NCR_700_Host_Parameters *hostdata =
		(struct NCR_700_Host_Parameters *)host->hostdata[0];

	scsi_remove_host(host);
	NCR_700_release(host);
	kfree(hostdata);
	free_irq(host->irq, host);
	release_region(host->base, 64);
	return 0;
}

#ifdef CONFIG_MCA

/* CARD ID 01BB and 01BA use the same pos values */
#define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
			    0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
			    0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
			    0x4000, 0x4400, 0x4800, 0x4C00, 0x5000  }

#define MCA_01BB_IRQS { 3, 5, 11, 14 }

/* CARD ID 004f */
#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500,  0x0600 }
#define MCA_004F_IRQS { 5, 9, 14 }

static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};

static __init int
sim710_mca_probe(struct device *dev)
{
	struct mca_device *mca_dev = to_mca_device(dev);
	int slot = mca_dev->slot;
	int pos[3];
	unsigned int base;
	int irq_vector;
	short id = sim710_mca_id_table[mca_dev->index];
	static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
	static int irq_004f_by_pos[] = MCA_004F_IRQS;
	static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
	static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
	char *name;
	int clock;

	pos[0] = mca_device_read_stored_pos(mca_dev, 2);
	pos[1] = mca_device_read_stored_pos(mca_dev, 3);
	pos[2] = mca_device_read_stored_pos(mca_dev, 4);

	/*
	 * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
	 *
	 *    000000  <disabled>   001010  0x2800
	 *    000001  <invalid>    001011  0x2C00
	 *    000010  0x0800       001100  0x3000
	 *    000011  0x0C00       001101  0x3400
	 *    000100  0x1000       001110  0x3800
	 *    000101  0x1400       001111  0x3C00
	 *    000110  0x1800       010000  0x4000
	 *    000111  0x1C00       010001  0x4400
	 *    001000  0x2000       010010  0x4800
	 *    001001  0x2400       010011  0x4C00
	 *                         010100  0x5000
	 *
	 * 00F4 port base by bits 3,2,1 in pos[0]
	 *
	 *    000  <disabled>      001    0x200
	 *    010  0x300           011    0x400
	 *    100  0x500           101    0x600
	 *
	 * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
	 *
	 *    00   3               10   11
	 *    01   5               11   14
	 *
	 * 00F4 IRQ specified by bits 6,5,4 in pos[0]
	 *
	 *    100   5              101    9
	 *    110   14
	 */

	if (id == 0x01bb || id == 0x01ba) {
		base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
		irq_vector =
			irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];

		clock = 50;
		if (id == 0x01bb)
			name = "NCR 3360/3430 SCSI SubSystem";
		else
			name = "NCR Dual SIOP SCSI Host Adapter Board";
	} else if ( id == 0x004f ) {
		base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
		irq_vector =
			irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
		clock = 50;
		name = "NCR 53c710 SCSI Host Adapter Board";
	} else {
		return -ENODEV;
	}
	mca_device_set_name(mca_dev, name);
	mca_device_set_claim(mca_dev, 1);
	base = mca_device_transform_ioport(mca_dev, base);
	irq_vector = mca_device_transform_irq(mca_dev, irq_vector);

	return sim710_probe_common(dev, base, irq_vector, clock,
				   0, id_array[slot]);
}

static struct mca_driver sim710_mca_driver = {
	.id_table		= sim710_mca_id_table,
	.driver = {
		.name		= "sim710",
		.bus		= &mca_bus_type,
		.probe		= sim710_mca_probe,
		.remove		= __devexit_p(sim710_device_remove),
	},
};

#endif /* CONFIG_MCA */

#ifdef CONFIG_EISA
static struct eisa_device_id sim710_eisa_ids[] = {
	{ "CPQ4410" },
	{ "CPQ4411" },
	{ "HWP0C80" },
	{ "" }
};
MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);

static __init int
sim710_eisa_probe(struct device *dev)
{
	struct eisa_device *edev = to_eisa_device(dev);
	unsigned long io_addr = edev->base_addr;
	char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
	char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
	char *eisa_irqs;
	unsigned char irq_index;
	unsigned char irq, differential = 0, scsi_id = 7;

	if(strcmp(edev->id.sig, "HWP0C80") == 0) {
		__u8 val;
		eisa_irqs =  eisa_hwp_irqs;
		irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;

		val = inb(io_addr + 0x4);
		scsi_id = ffs(val) - 1;

		if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
			printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev_name(dev));
			scsi_id = 7;
		}
	} else {
		eisa_irqs = eisa_cpq_irqs;
		irq_index = inb(io_addr + 0xc88) & 0x07;
	}

	if(irq_index >= strlen(eisa_irqs)) {
		printk("sim710.c: irq nasty\n");
		return -ENODEV;
	}

	irq = eisa_irqs[irq_index];
		
	return sim710_probe_common(dev, io_addr, irq, 50,
				   differential, scsi_id);
}

static struct eisa_driver sim710_eisa_driver = {
	.id_table		= sim710_eisa_ids,
	.driver = {
		.name		= "sim710",
		.probe		= sim710_eisa_probe,
		.remove		= __devexit_p(sim710_device_remove),
	},
};
#endif /* CONFIG_EISA */

static int __init sim710_init(void)
{
	int err = -ENODEV;

#ifdef MODULE
	if (sim710)
		param_setup(sim710);
#endif

#ifdef CONFIG_MCA
	err = mca_register_driver(&sim710_mca_driver);
#endif

#ifdef CONFIG_EISA
	err = eisa_driver_register(&sim710_eisa_driver);
#endif
	/* FIXME: what we'd really like to return here is -ENODEV if
	 * no devices have actually been found.  Instead, the err
	 * above actually only reports problems with kobject_register,
	 * so for the moment return success */

	return 0;
}

static void __exit sim710_exit(void)
{
#ifdef CONFIG_MCA
	if (MCA_bus)
		mca_unregister_driver(&sim710_mca_driver);
#endif

#ifdef CONFIG_EISA
	eisa_driver_unregister(&sim710_eisa_driver);
#endif
}

module_init(sim710_init);
module_exit(sim710_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* sim710.c - Copyright (C) 1999 Richard Hirst <[email protected]>
	3	*
	4	*----------------------------------------------------------------------------
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*----------------------------------------------------------------------------
	19	*
	20	* MCA card detection code by Trent McNair.
	21	* Fixes to not explicitly nul bss data from Xavier Bestel.
	22	* Some multiboard fixes from Rolf Eike Beer.
	23	* Auto probing of EISA config space from Trevor Hemsley.
	24	*
	25	* Rewritten to use 53c700.c by [email protected]
	26	*
	27	*/
	28
1da177e4 LT	29	#include <linux/module.h>
	30
	31	#include <linux/blkdev.h>
	32	#include <linux/device.h>
	33	#include <linux/init.h>
	34	#include <linux/mca.h>
	35	#include <linux/eisa.h>
	36	#include <linux/interrupt.h>
	37	#include <scsi/scsi_host.h>
	38	#include <scsi/scsi_device.h>
	39	#include <scsi/scsi_transport.h>
	40	#include <scsi/scsi_transport_spi.h>
	41
	42	#include "53c700.h"
	43
	44
	45	/* Must be enough for both EISA and MCA */
	46	#define MAX_SLOTS 8
	47	static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
	48
	49	static char sim710; / command line passed by insmod */
	50
	51	MODULE_AUTHOR("Richard Hirst");
	52	MODULE_DESCRIPTION("Simple NCR53C710 driver");
	53	MODULE_LICENSE("GPL");
	54
	55	module_param(sim710, charp, 0);
	56
	57	#ifdef MODULE
	58	#define ARG_SEP ' '
	59	#else
	60	#define ARG_SEP ','
	61	#endif
	62
	63	static __init int
	64	param_setup(char *str)
	65	{
	66	char pos = str, next;
	67	int slot = -1;
	68
	69	while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
	70	int val = (int)simple_strtoul(++next, NULL, 0);
	71
	72	if(!strncmp(pos, "slot:", 5))
	73	slot = val;
	74	else if(!strncmp(pos, "id:", 3)) {
	75	if(slot == -1) {
	76	printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
1a34456b	77	} else if(slot >= MAX_SLOTS) {
1da177e4 LT	78	printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
	79	} else {
	80	id_array[slot] = val;
	81	}
	82	}
	83	if((pos = strchr(pos, ARG_SEP)) != NULL)
	84	pos++;
	85	}
	86	return 1;
	87	}
	88	__setup("sim710=", param_setup);
	89
	90	static struct scsi_host_template sim710_driver_template = {
	91	.name = "LSI (Symbios) 710 MCA/EISA",
	92	.proc_name = "sim710",
	93	.this_id = 7,
	94	.module = THIS_MODULE,
	95	};
	96
	97	static __devinit int
	98	sim710_probe_common(struct device *dev, unsigned long base_addr,
	99	int irq, int clock, int differential, int scsi_id)
	100	{
	101	struct Scsi_Host * host = NULL;
	102	struct NCR_700_Host_Parameters *hostdata =
dd00cc48	103	kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
1da177e4	104
71610f55	105	printk(KERN_NOTICE "sim710: %s\n", dev_name(dev));
1da177e4 LT	106	printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
	107	irq, clock, base_addr, scsi_id);
	108
	109	if(hostdata == NULL) {
	110	printk(KERN_ERR "sim710: Failed to allocate host data\n");
	111	goto out;
	112	}
1da177e4 LT	113
	114	if(request_region(base_addr, 64, "sim710") == NULL) {
	115	printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
	116	base_addr);
	117	goto out_free;
	118	}
	119
	120	/* Fill in the three required pieces of hostdata */
56fece20	121	hostdata->base = ioport_map(base_addr, 64);
1da177e4 LT	122	hostdata->differential = differential;
	123	hostdata->clock = clock;
	124	hostdata->chip710 = 1;
f67a9c15	125	hostdata->burst_length = 8;
1da177e4 LT	126
	127	/* and register the chip */
	128	if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
	129	== NULL) {
	130	printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
	131	goto out_release;
	132	}
	133	host->this_id = scsi_id;
56fece20	134	host->base = base_addr;
1da177e4	135	host->irq = irq;
1d6f359a	136	if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
1da177e4 LT	137	printk(KERN_ERR "sim710: request_irq failed\n");
	138	goto out_put_host;
	139	}
	140
3ac709c1	141	dev_set_drvdata(dev, host);
1da177e4 LT	142	scsi_scan_host(host);
	143
	144	return 0;
	145
	146	out_put_host:
	147	scsi_host_put(host);
	148	out_release:
a1d4f73a	149	release_region(base_addr, 64);
1da177e4 LT	150	out_free:
	151	kfree(hostdata);
	152	out:
	153	return -ENODEV;
	154	}
	155
	156	static __devexit int
	157	sim710_device_remove(struct device *dev)
	158	{
3ac709c1	159	struct Scsi_Host *host = dev_get_drvdata(dev);
1da177e4 LT	160	struct NCR_700_Host_Parameters *hostdata =
	161	(struct NCR_700_Host_Parameters *)host->hostdata[0];
	162
	163	scsi_remove_host(host);
	164	NCR_700_release(host);
	165	kfree(hostdata);
	166	free_irq(host->irq, host);
56fece20	167	release_region(host->base, 64);
1da177e4 LT	168	return 0;
	169	}
	170
	171	#ifdef CONFIG_MCA
	172
	173	/* CARD ID 01BB and 01BA use the same pos values */
	174	#define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
	175	0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
	176	0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
	177	0x4000, 0x4400, 0x4800, 0x4C00, 0x5000 }
	178
	179	#define MCA_01BB_IRQS { 3, 5, 11, 14 }
	180
	181	/* CARD ID 004f */
	182	#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 }
	183	#define MCA_004F_IRQS { 5, 9, 14 }
	184
	185	static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
	186
	187	static __init int
	188	sim710_mca_probe(struct device *dev)
	189	{
	190	struct mca_device *mca_dev = to_mca_device(dev);
	191	int slot = mca_dev->slot;
	192	int pos[3];
	193	unsigned int base;
	194	int irq_vector;
	195	short id = sim710_mca_id_table[mca_dev->index];
	196	static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
	197	static int irq_004f_by_pos[] = MCA_004F_IRQS;
	198	static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
	199	static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
	200	char *name;
	201	int clock;
	202
	203	pos[0] = mca_device_read_stored_pos(mca_dev, 2);
	204	pos[1] = mca_device_read_stored_pos(mca_dev, 3);
	205	pos[2] = mca_device_read_stored_pos(mca_dev, 4);
	206
	207	/*
	208	* 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
	209	*
	210	* 000000 <disabled> 001010 0x2800
	211	* 000001 <invalid> 001011 0x2C00
	212	* 000010 0x0800 001100 0x3000
	213	* 000011 0x0C00 001101 0x3400
	214	* 000100 0x1000 001110 0x3800
	215	* 000101 0x1400 001111 0x3C00
	216	* 000110 0x1800 010000 0x4000
	217	* 000111 0x1C00 010001 0x4400
	218	* 001000 0x2000 010010 0x4800
	219	* 001001 0x2400 010011 0x4C00
	220	* 010100 0x5000
	221	*
	222	* 00F4 port base by bits 3,2,1 in pos[0]
	223	*
	224	* 000 <disabled> 001 0x200
	225	* 010 0x300 011 0x400
	226	* 100 0x500 101 0x600
	227	*
	228	* 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
	229	*
	230	* 00 3 10 11
	231	* 01 5 11 14
232	*
233	* 00F4 IRQ specified by bits 6,5,4 in pos[0]
234	*
235	* 100 5 101 9
236	* 110 14
237	*/
238
239	if (id == 0x01bb \|\| id == 0x01ba) {
240	base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
241	irq_vector =
242	irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
243
244	clock = 50;
245	if (id == 0x01bb)
246	name = "NCR 3360/3430 SCSI SubSystem";
247	else
248	name = "NCR Dual SIOP SCSI Host Adapter Board";
249	} else if ( id == 0x004f ) {
250	base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
251	irq_vector =
252	irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
253	clock = 50;
254	name = "NCR 53c710 SCSI Host Adapter Board";
255	} else {
256	return -ENODEV;
257	}
258	mca_device_set_name(mca_dev, name);
259	mca_device_set_claim(mca_dev, 1);
260	base = mca_device_transform_ioport(mca_dev, base);
261	irq_vector = mca_device_transform_irq(mca_dev, irq_vector);
262
263	return sim710_probe_common(dev, base, irq_vector, clock,
264	0, id_array[slot]);
265	}
266
267	static struct mca_driver sim710_mca_driver = {
268	.id_table = sim710_mca_id_table,
269	.driver = {
270	.name = "sim710",
271	.bus = &mca_bus_type,
272	.probe = sim710_mca_probe,
273	.remove = __devexit_p(sim710_device_remove),
274	},
275	};
276
277	#endif /* CONFIG_MCA */
278
279	#ifdef CONFIG_EISA
280	static struct eisa_device_id sim710_eisa_ids[] = {
281	{ "CPQ4410" },
282	{ "CPQ4411" },
283	{ "HWP0C80" },
284	{ "" }
285	};
07563c71	286	MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
1da177e4 LT	287
	288	static __init int
	289	sim710_eisa_probe(struct device *dev)
	290	{
	291	struct eisa_device *edev = to_eisa_device(dev);
	292	unsigned long io_addr = edev->base_addr;
	293	char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
	294	char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
	295	char *eisa_irqs;
	296	unsigned char irq_index;
	297	unsigned char irq, differential = 0, scsi_id = 7;
	298
	299	if(strcmp(edev->id.sig, "HWP0C80") == 0) {
	300	__u8 val;
	301	eisa_irqs = eisa_hwp_irqs;
	302	irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
	303
	304	val = inb(io_addr + 0x4);
	305	scsi_id = ffs(val) - 1;
	306
	307	if(scsi_id > 7 \|\| (val & ~(1<<scsi_id)) != 0) {
71610f55	308	printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev_name(dev));
1da177e4 LT	309	scsi_id = 7;
	310	}
	311	} else {
	312	eisa_irqs = eisa_cpq_irqs;
	313	irq_index = inb(io_addr + 0xc88) & 0x07;
	314	}
	315
	316	if(irq_index >= strlen(eisa_irqs)) {
	317	printk("sim710.c: irq nasty\n");
	318	return -ENODEV;
	319	}
	320
	321	irq = eisa_irqs[irq_index];
	322
	323	return sim710_probe_common(dev, io_addr, irq, 50,
	324	differential, scsi_id);
	325	}
	326
	327	static struct eisa_driver sim710_eisa_driver = {
	328	.id_table = sim710_eisa_ids,
	329	.driver = {
	330	.name = "sim710",
	331	.probe = sim710_eisa_probe,
	332	.remove = __devexit_p(sim710_device_remove),
	333	},
	334	};
	335	#endif /* CONFIG_EISA */
	336
	337	static int __init sim710_init(void)
	338	{
	339	int err = -ENODEV;
	340
	341	#ifdef MODULE
	342	if (sim710)
	343	param_setup(sim710);
	344	#endif
	345
	346	#ifdef CONFIG_MCA
	347	err = mca_register_driver(&sim710_mca_driver);
	348	#endif
	349
	350	#ifdef CONFIG_EISA
	351	err = eisa_driver_register(&sim710_eisa_driver);
	352	#endif
	353	/* FIXME: what we'd really like to return here is -ENODEV if
	354	* no devices have actually been found. Instead, the err
	355	* above actually only reports problems with kobject_register,
	356	* so for the moment return success */
	357
	358	return 0;
	359	}
	360
	361	static void __exit sim710_exit(void)
	362	{
	363	#ifdef CONFIG_MCA
	364	if (MCA_bus)
	365	mca_unregister_driver(&sim710_mca_driver);
	366	#endif
	367
	368	#ifdef CONFIG_EISA
	369	eisa_driver_unregister(&sim710_eisa_driver);
	370	#endif
	371	}
	372
373	module_init(sim710_init);
374	module_exit(sim710_exit);