[mirror_ubuntu-artful-kernel.git] / drivers / scsi / bvme6000_scsi.c

/*
 * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux.
 *
 * Based on work by Alan Hourihane and Kars de Jong
 *
 * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk>
 */

#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <asm/bvme6000hw.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"

MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>");
MODULE_DESCRIPTION("BVME6000 NCR53C710 driver");
MODULE_LICENSE("GPL");

static struct scsi_host_template bvme6000_scsi_driver_template = {
	.name			= "BVME6000 NCR53c710 SCSI",
	.proc_name		= "BVME6000",
	.this_id		= 7,
	.module			= THIS_MODULE,
};

static struct platform_device *bvme6000_scsi_device;

static int
bvme6000_probe(struct platform_device *dev)
{
	struct Scsi_Host *host;
	struct NCR_700_Host_Parameters *hostdata;

	if (!MACH_IS_BVME6000)
		goto out;

	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
	if (!hostdata) {
		printk(KERN_ERR "bvme6000-scsi: "
				"Failed to allocate host data\n");
		goto out;
	}

	/* Fill in the required pieces of hostdata */
	hostdata->base = (void __iomem *)BVME_NCR53C710_BASE;
	hostdata->clock = 40;	/* XXX - depends on the CPU clock! */
	hostdata->chip710 = 1;
	hostdata->dmode_extra = DMODE_FC2;
	hostdata->dcntl_extra = EA_710;
	hostdata->ctest7_extra = CTEST7_TT1;

	/* and register the chip */
	host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata,
			      &dev->dev);
	if (!host) {
		printk(KERN_ERR "bvme6000-scsi: No host detected; "
				"board configuration problem?\n");
		goto out_free;
	}
	host->base = BVME_NCR53C710_BASE;
	host->this_id = 7;
	host->irq = BVME_IRQ_SCSI;
	if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi",
			host)) {
		printk(KERN_ERR "bvme6000-scsi: request_irq failed\n");
		goto out_put_host;
	}

	platform_set_drvdata(dev, host);
	scsi_scan_host(host);

	return 0;

 out_put_host:
	scsi_host_put(host);
 out_free:
	kfree(hostdata);
 out:
	return -ENODEV;
}

static int
bvme6000_device_remove(struct platform_device *dev)
{
	struct Scsi_Host *host = platform_get_drvdata(dev);
	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);

	scsi_remove_host(host);
	NCR_700_release(host);
	kfree(hostdata);
	free_irq(host->irq, host);

	return 0;
}

static struct platform_driver bvme6000_scsi_driver = {
	.driver = {
		.name		= "bvme6000-scsi",
	},
	.probe		= bvme6000_probe,
	.remove		= bvme6000_device_remove,
};

static int __init bvme6000_scsi_init(void)
{
	int err;

	err = platform_driver_register(&bvme6000_scsi_driver);
	if (err)
		return err;

	bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi",
							       -1, NULL, 0);
	if (IS_ERR(bvme6000_scsi_device)) {
		platform_driver_unregister(&bvme6000_scsi_driver);
		return PTR_ERR(bvme6000_scsi_device);
	}

	return 0;
}

static void __exit bvme6000_scsi_exit(void)
{
	platform_device_unregister(bvme6000_scsi_device);
	platform_driver_unregister(&bvme6000_scsi_driver);
}

module_init(bvme6000_scsi_init);
module_exit(bvme6000_scsi_exit);
Commit	Line	Data
8276b58a KJ	1	/*
	2	* Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux.
	3	*
	4	* Based on work by Alan Hourihane and Kars de Jong
	5	*
	6	* Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk>
	7	*/
	8
	9	#include <linux/module.h>
	10	#include <linux/blkdev.h>
	11	#include <linux/device.h>
	12	#include <linux/platform_device.h>
	13	#include <linux/init.h>
	14	#include <linux/interrupt.h>
5a0e3ad6	15	#include <linux/slab.h>
8276b58a KJ	16	#include <asm/bvme6000hw.h>
	17	#include <scsi/scsi_host.h>
	18	#include <scsi/scsi_device.h>
	19	#include <scsi/scsi_transport.h>
	20	#include <scsi/scsi_transport_spi.h>
	21
	22	#include "53c700.h"
	23
	24	MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>");
	25	MODULE_DESCRIPTION("BVME6000 NCR53C710 driver");
	26	MODULE_LICENSE("GPL");
	27
	28	static struct scsi_host_template bvme6000_scsi_driver_template = {
	29	.name = "BVME6000 NCR53c710 SCSI",
	30	.proc_name = "BVME6000",
	31	.this_id = 7,
	32	.module = THIS_MODULE,
	33	};
	34
	35	static struct platform_device *bvme6000_scsi_device;
	36
6f039790	37	static int
7a192ec3	38	bvme6000_probe(struct platform_device *dev)
8276b58a	39	{
bbfbbbc1	40	struct Scsi_Host *host;
8276b58a KJ	41	struct NCR_700_Host_Parameters *hostdata;
	42
	43	if (!MACH_IS_BVME6000)
	44	goto out;
	45
bbfbbbc1 MK	46	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
bbfbbbc1 MK	47	if (!hostdata) {
8276b58a KJ	48	printk(KERN_ERR "bvme6000-scsi: "
	49	"Failed to allocate host data\n");
	50	goto out;
	51	}
8276b58a KJ	52
	53	/* Fill in the required pieces of hostdata */
	54	hostdata->base = (void __iomem *)BVME_NCR53C710_BASE;
	55	hostdata->clock = 40; /* XXX - depends on the CPU clock! */
	56	hostdata->chip710 = 1;
	57	hostdata->dmode_extra = DMODE_FC2;
	58	hostdata->dcntl_extra = EA_710;
	59	hostdata->ctest7_extra = CTEST7_TT1;
	60
	61	/* and register the chip */
e5779a58 GU	62	host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata,
e5779a58 GU	63	&dev->dev);
8276b58a KJ	64	if (!host) {
	65	printk(KERN_ERR "bvme6000-scsi: No host detected; "
	66	"board configuration problem?\n");
	67	goto out_free;
	68	}
	69	host->base = BVME_NCR53C710_BASE;
	70	host->this_id = 7;
	71	host->irq = BVME_IRQ_SCSI;
	72	if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi",
	73	host)) {
	74	printk(KERN_ERR "bvme6000-scsi: request_irq failed\n");
	75	goto out_put_host;
	76	}
	77
7a192ec3	78	platform_set_drvdata(dev, host);
8276b58a KJ	79	scsi_scan_host(host);
	80
	81	return 0;
	82
	83	out_put_host:
	84	scsi_host_put(host);
	85	out_free:
	86	kfree(hostdata);
	87	out:
	88	return -ENODEV;
	89	}
	90
6f039790	91	static int
7a192ec3	92	bvme6000_device_remove(struct platform_device *dev)
8276b58a	93	{
7a192ec3	94	struct Scsi_Host *host = platform_get_drvdata(dev);
8276b58a KJ	95	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
	96
	97	scsi_remove_host(host);
	98	NCR_700_release(host);
	99	kfree(hostdata);
	100	free_irq(host->irq, host);
	101
	102	return 0;
	103	}
	104
7a192ec3 ML	105	static struct platform_driver bvme6000_scsi_driver = {
	106	.driver = {
	107	.name = "bvme6000-scsi",
7a192ec3 ML	108	},
7a192ec3 ML	109	.probe = bvme6000_probe,
6f039790	110	.remove = bvme6000_device_remove,
8276b58a KJ	111	};
	112
	113	static int __init bvme6000_scsi_init(void)
	114	{
	115	int err;
	116
7a192ec3	117	err = platform_driver_register(&bvme6000_scsi_driver);
96249cf9	118	if (err)
8276b58a KJ	119	return err;
	120
	121	bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi",
	122	-1, NULL, 0);
	123	if (IS_ERR(bvme6000_scsi_device)) {
7a192ec3	124	platform_driver_unregister(&bvme6000_scsi_driver);
8276b58a KJ	125	return PTR_ERR(bvme6000_scsi_device);
	126	}
	127
	128	return 0;
	129	}
	130
	131	static void __exit bvme6000_scsi_exit(void)
	132	{
	133	platform_device_unregister(bvme6000_scsi_device);
7a192ec3	134	platform_driver_unregister(&bvme6000_scsi_driver);
8276b58a KJ	135	}
	136
	137	module_init(bvme6000_scsi_init);
	138	module_exit(bvme6000_scsi_exit);