[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / aacraid / sa.c

/*
 *	Adaptec AAC series RAID controller driver
 *	(c) Copyright 2001 Red Hat Inc.	<alan@redhat.com>
 *
 * based on the old aacraid driver that is..
 * Adaptec aacraid device driver for Linux.
 *
 * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
 *
 * 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, 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; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Module Name:
 *  sa.c
 *
 * Abstract: Drawbridge specific support functions
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <asm/semaphore.h>

#include <scsi/scsi_host.h>

#include "aacraid.h"

static irqreturn_t aac_sa_intr(int irq, void *dev_id)
{
	struct aac_dev *dev = dev_id;
	unsigned short intstat, mask;

	intstat = sa_readw(dev, DoorbellReg_p);
	/*
	 *	Read mask and invert because drawbridge is reversed.
	 *	This allows us to only service interrupts that have been enabled.
	 */
	mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));

	/* Check to see if this is our interrupt.  If it isn't just return */

	if (intstat & mask) {
		if (intstat & PrintfReady) {
			aac_printf(dev, sa_readl(dev, Mailbox5));
			sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
			sa_writew(dev, DoorbellReg_s, PrintfDone);
		} else if (intstat & DOORBELL_1) {	// dev -> Host Normal Command Ready
			sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
		} else if (intstat & DOORBELL_2) {	// dev -> Host Normal Response Ready
			sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
		} else if (intstat & DOORBELL_3) {	// dev -> Host Normal Command Not Full
			sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
		} else if (intstat & DOORBELL_4) {	// dev -> Host Normal Response Not Full
			sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
		}
		return IRQ_HANDLED;
	}
	return IRQ_NONE;
}

/**
 *	aac_sa_disable_interrupt	-	disable interrupt
 *	@dev: Which adapter to enable.
 */

static void aac_sa_disable_interrupt (struct aac_dev *dev)
{
	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
}

/**
 *	aac_sa_notify_adapter		-	handle adapter notification
 *	@dev:	Adapter that notification is for
 *	@event:	Event to notidy
 *
 *	Notify the adapter of an event
 */
 
static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
{
	switch (event) {

	case AdapNormCmdQue:
		sa_writew(dev, DoorbellReg_s,DOORBELL_1);
		break;
	case HostNormRespNotFull:
		sa_writew(dev, DoorbellReg_s,DOORBELL_4);
		break;
	case AdapNormRespQue:
		sa_writew(dev, DoorbellReg_s,DOORBELL_2);
		break;
	case HostNormCmdNotFull:
		sa_writew(dev, DoorbellReg_s,DOORBELL_3);
		break;
	case HostShutdown:
		/*
		sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
		NULL, NULL, NULL, NULL, NULL);
		*/
		break;
	case FastIo:
		sa_writew(dev, DoorbellReg_s,DOORBELL_6);
		break;
	case AdapPrintfDone:
		sa_writew(dev, DoorbellReg_s,DOORBELL_5);
		break;
	default:
		BUG();
		break;
	}
}


/**
 *	sa_sync_cmd	-	send a command and wait
 *	@dev: Adapter
 *	@command: Command to execute
 *	@p1: first parameter
 *	@ret: adapter status
 *
 *	This routine will send a synchronous command to the adapter and wait 
 *	for its	completion.
 */

static int sa_sync_cmd(struct aac_dev *dev, u32 command, 
		u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
		u32 *ret, u32 *r1, u32 *r2, u32 *r3, u32 *r4)
{
	unsigned long start;
 	int ok;
	/*
	 *	Write the Command into Mailbox 0
	 */
	sa_writel(dev, Mailbox0, command);
	/*
	 *	Write the parameters into Mailboxes 1 - 4
	 */
	sa_writel(dev, Mailbox1, p1);
	sa_writel(dev, Mailbox2, p2);
	sa_writel(dev, Mailbox3, p3);
	sa_writel(dev, Mailbox4, p4);

	/*
	 *	Clear the synch command doorbell to start on a clean slate.
	 */
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	/*
	 *	Signal that there is a new synch command
	 */
	sa_writew(dev, DoorbellReg_s, DOORBELL_0);

	ok = 0;
	start = jiffies;

	while(time_before(jiffies, start+30*HZ))
	{
		/*
		 *	Delay 5uS so that the monitor gets access
		 */
		udelay(5);
		/*
		 *	Mon110 will set doorbell0 bit when it has 
		 *	completed the command.
		 */
		if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0)  {
			ok = 1;
			break;
		}
		msleep(1);
	}

	if (ok != 1)
		return -ETIMEDOUT;
	/*
	 *	Clear the synch command doorbell.
	 */
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	/*
	 *	Pull the synch status from Mailbox 0.
	 */
	if (ret)
		*ret = sa_readl(dev, Mailbox0);
	if (r1)
		*r1 = sa_readl(dev, Mailbox1);
	if (r2)
		*r2 = sa_readl(dev, Mailbox2);
	if (r3)
		*r3 = sa_readl(dev, Mailbox3);
	if (r4)
		*r4 = sa_readl(dev, Mailbox4);
	return 0;
}

/**
 *	aac_sa_interrupt_adapter	-	interrupt an adapter
 *	@dev: Which adapter to enable.
 *
 *	Breakpoint an adapter.
 */
 
static void aac_sa_interrupt_adapter (struct aac_dev *dev)
{
	sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
			NULL, NULL, NULL, NULL, NULL);
}

/**
 *	aac_sa_start_adapter		-	activate adapter
 *	@dev:	Adapter
 *
 *	Start up processing on an ARM based AAC adapter
 */

static void aac_sa_start_adapter(struct aac_dev *dev)
{
	struct aac_init *init;
	/*
	 * Fill in the remaining pieces of the init.
	 */
	init = dev->init;
	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
	/* We can only use a 32 bit address here */
	sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, 
			(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
			NULL, NULL, NULL, NULL, NULL);
}

/**
 *	aac_sa_check_health
 *	@dev: device to check if healthy
 *
 *	Will attempt to determine if the specified adapter is alive and
 *	capable of handling requests, returning 0 if alive.
 */
static int aac_sa_check_health(struct aac_dev *dev)
{
	long status = sa_readl(dev, Mailbox7);

	/*
	 *	Check to see if the board failed any self tests.
	 */
	if (status & SELF_TEST_FAILED)
		return -1;
	/*
	 *	Check to see if the board panic'd while booting.
	 */
	if (status & KERNEL_PANIC)
		return -2;
	/*
	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
	 */
	if (!(status & KERNEL_UP_AND_RUNNING))
		return -3;
	/*
	 *	Everything is OK
	 */
	return 0;
}

/**
 *	aac_sa_ioremap
 *	@size: mapping resize request
 *
 */
static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
{
	if (!size) {
		iounmap(dev->regs.sa);
		return 0;
	}
	dev->base = dev->regs.sa = ioremap(dev->scsi_host_ptr->base, size);
	return (dev->base == NULL) ? -1 : 0;
}

/**
 *	aac_sa_init	-	initialize an ARM based AAC card
 *	@dev: device to configure
 *
 *	Allocate and set up resources for the ARM based AAC variants. The 
 *	device_interface in the commregion will be allocated and linked 
 *	to the comm region.
 */

int aac_sa_init(struct aac_dev *dev)
{
	unsigned long start;
	unsigned long status;
	int instance;
	const char *name;

	instance = dev->id;
	name     = dev->name;

	if (aac_sa_ioremap(dev, dev->base_size)) {
		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
		goto error_iounmap;
	}

	/*
	 *	Check to see if the board failed any self tests.
	 */
	if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
		printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
		goto error_iounmap;
	}
	/*
	 *	Check to see if the board panic'd while booting.
	 */
	if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
		printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
		goto error_iounmap;
	}
	start = jiffies;
	/*
	 *	Wait for the adapter to be up and running. Wait up to 3 minutes.
	 */
	while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
		if (time_after(jiffies, start+startup_timeout*HZ)) {
			status = sa_readl(dev, Mailbox7);
			printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n", 
					name, instance, status);
			goto error_iounmap;
		}
		msleep(1);
	}

	if (request_irq(dev->scsi_host_ptr->irq, aac_sa_intr, IRQF_SHARED|IRQF_DISABLED, "aacraid", (void *)dev ) < 0) {
		printk(KERN_WARNING "%s%d: Interrupt unavailable.\n", name, instance);
		goto error_iounmap;
	}

	/*
	 *	Fill in the function dispatch table.
	 */

	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
	dev->a_ops.adapter_check_health = aac_sa_check_health;
	dev->a_ops.adapter_ioremap = aac_sa_ioremap;

	/*
	 *	First clear out all interrupts.  Then enable the one's that 
	 *	we can handle.
	 */
	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 | 
				DOORBELL_2 | DOORBELL_3 | DOORBELL_4));

	if(aac_init_adapter(dev) == NULL)
		goto error_irq;

	/*
	 *	Tell the adapter that all is configure, and it can start 
	 *	accepting requests
	 */
	aac_sa_start_adapter(dev);
	return 0;

error_irq:
	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	free_irq(dev->scsi_host_ptr->irq, (void *)dev);

error_iounmap:

	return -1;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Adaptec AAC series RAID controller driver
	3	* (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
	4	*
	5	* based on the old aacraid driver that is..
	6	* Adaptec aacraid device driver for Linux.
	7	*
	8	* Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2, or (at your option)
	13	* any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; see the file COPYING. If not, write to
	22	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	23	*
	24	* Module Name:
	25	* sa.c
	26	*
	27	* Abstract: Drawbridge specific support functions
	28	*
	29	*/
	30
	31	#include <linux/kernel.h>
	32	#include <linux/init.h>
	33	#include <linux/types.h>
	34	#include <linux/sched.h>
	35	#include <linux/pci.h>
	36	#include <linux/spinlock.h>
	37	#include <linux/slab.h>
	38	#include <linux/blkdev.h>
	39	#include <linux/delay.h>
	40	#include <linux/completion.h>
	41	#include <linux/time.h>
	42	#include <linux/interrupt.h>
	43	#include <asm/semaphore.h>
	44
	45	#include <scsi/scsi_host.h>
	46
	47	#include "aacraid.h"
	48
7d12e780	49	static irqreturn_t aac_sa_intr(int irq, void *dev_id)
1da177e4 LT	50	{
	51	struct aac_dev *dev = dev_id;
	52	unsigned short intstat, mask;
	53
	54	intstat = sa_readw(dev, DoorbellReg_p);
	55	/*
	56	* Read mask and invert because drawbridge is reversed.
	57	* This allows us to only service interrupts that have been enabled.
	58	*/
	59	mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));
	60
	61	/* Check to see if this is our interrupt. If it isn't just return */
	62
	63	if (intstat & mask) {
	64	if (intstat & PrintfReady) {
	65	aac_printf(dev, sa_readl(dev, Mailbox5));
	66	sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
	67	sa_writew(dev, DoorbellReg_s, PrintfDone);
	68	} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
1da177e4	69	sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
df3b7668	70	aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
1da177e4	71	} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
1da177e4	72	sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
df3b7668	73	aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
1da177e4 LT	74	} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
	75	sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
	76	} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
	77	sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
	78	}
	79	return IRQ_HANDLED;
	80	}
	81	return IRQ_NONE;
	82	}
	83
bd1aac80 MH	84	/**
	85	* aac_sa_disable_interrupt - disable interrupt
	86	* @dev: Which adapter to enable.
	87	*/
	88
	89	static void aac_sa_disable_interrupt (struct aac_dev *dev)
	90	{
	91	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	92	}
	93
1da177e4 LT	94	/**
	95	* aac_sa_notify_adapter - handle adapter notification
	96	* @dev: Adapter that notification is for
	97	* @event: Event to notidy
	98	*
	99	* Notify the adapter of an event
	100	*/
	101
4833869e	102	static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
1da177e4 LT	103	{
	104	switch (event) {
	105
	106	case AdapNormCmdQue:
	107	sa_writew(dev, DoorbellReg_s,DOORBELL_1);
	108	break;
	109	case HostNormRespNotFull:
	110	sa_writew(dev, DoorbellReg_s,DOORBELL_4);
	111	break;
	112	case AdapNormRespQue:
	113	sa_writew(dev, DoorbellReg_s,DOORBELL_2);
	114	break;
	115	case HostNormCmdNotFull:
	116	sa_writew(dev, DoorbellReg_s,DOORBELL_3);
	117	break;
	118	case HostShutdown:
7c00ffa3 MH	119	/*
	120	sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
	121	NULL, NULL, NULL, NULL, NULL);
	122	*/
1da177e4 LT	123	break;
	124	case FastIo:
	125	sa_writew(dev, DoorbellReg_s,DOORBELL_6);
	126	break;
	127	case AdapPrintfDone:
	128	sa_writew(dev, DoorbellReg_s,DOORBELL_5);
	129	break;
	130	default:
	131	BUG();
	132	break;
	133	}
	134	}
	135
	136
	137	/**
	138	* sa_sync_cmd - send a command and wait
	139	* @dev: Adapter
	140	* @command: Command to execute
	141	* @p1: first parameter
	142	* @ret: adapter status
	143	*
	144	* This routine will send a synchronous command to the adapter and wait
	145	* for its completion.
	146	*/
	147
7c00ffa3 MH	148	static int sa_sync_cmd(struct aac_dev *dev, u32 command,
	149	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
	150	u32 ret, u32 r1, u32 r2, u32 r3, u32 *r4)
1da177e4 LT	151	{
	152	unsigned long start;
	153	int ok;
	154	/*
	155	* Write the Command into Mailbox 0
	156	*/
	157	sa_writel(dev, Mailbox0, command);
	158	/*
	159	* Write the parameters into Mailboxes 1 - 4
	160	*/
	161	sa_writel(dev, Mailbox1, p1);
7c00ffa3 MH	162	sa_writel(dev, Mailbox2, p2);
	163	sa_writel(dev, Mailbox3, p3);
	164	sa_writel(dev, Mailbox4, p4);
	165
1da177e4 LT	166	/*
	167	* Clear the synch command doorbell to start on a clean slate.
	168	*/
	169	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	170	/*
	171	* Signal that there is a new synch command
	172	*/
	173	sa_writew(dev, DoorbellReg_s, DOORBELL_0);
	174
	175	ok = 0;
	176	start = jiffies;
	177
	178	while(time_before(jiffies, start+30*HZ))
	179	{
	180	/*
	181	* Delay 5uS so that the monitor gets access
	182	*/
	183	udelay(5);
	184	/*
	185	* Mon110 will set doorbell0 bit when it has
	186	* completed the command.
	187	*/
	188	if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0) {
	189	ok = 1;
	190	break;
	191	}
1241f359	192	msleep(1);
1da177e4 LT	193	}
	194
	195	if (ok != 1)
	196	return -ETIMEDOUT;
	197	/*
	198	* Clear the synch command doorbell.
	199	*/
	200	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	201	/*
	202	* Pull the synch status from Mailbox 0.
	203	*/
	204	if (ret)
	205	*ret = sa_readl(dev, Mailbox0);
7c00ffa3 MH	206	if (r1)
	207	*r1 = sa_readl(dev, Mailbox1);
	208	if (r2)
	209	*r2 = sa_readl(dev, Mailbox2);
	210	if (r3)
	211	*r3 = sa_readl(dev, Mailbox3);
	212	if (r4)
	213	*r4 = sa_readl(dev, Mailbox4);
1da177e4 LT	214	return 0;
	215	}
	216
	217	/**
	218	* aac_sa_interrupt_adapter - interrupt an adapter
	219	* @dev: Which adapter to enable.
	220	*
	221	* Breakpoint an adapter.
	222	*/
	223
	224	static void aac_sa_interrupt_adapter (struct aac_dev *dev)
	225	{
7c00ffa3	226	sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
bd1aac80	227	NULL, NULL, NULL, NULL, NULL);
1da177e4 LT	228	}
	229
	230	/**
	231	* aac_sa_start_adapter - activate adapter
	232	* @dev: Adapter
	233	*
	234	* Start up processing on an ARM based AAC adapter
	235	*/
	236
	237	static void aac_sa_start_adapter(struct aac_dev *dev)
	238	{
1da177e4 LT	239	struct aac_init *init;
	240	/*
	241	* Fill in the remaining pieces of the init.
	242	*/
	243	init = dev->init;
	244	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
1da177e4	245	/* We can only use a 32 bit address here */
7c00ffa3 MH	246	sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
7c00ffa3 MH	247	(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
8e0c5ebd	248	NULL, NULL, NULL, NULL, NULL);
1da177e4 LT	249	}
	250
	251	/**
	252	* aac_sa_check_health
	253	* @dev: device to check if healthy
	254	*
	255	* Will attempt to determine if the specified adapter is alive and
	256	* capable of handling requests, returning 0 if alive.
	257	*/
	258	static int aac_sa_check_health(struct aac_dev *dev)
	259	{
	260	long status = sa_readl(dev, Mailbox7);
	261
	262	/*
	263	* Check to see if the board failed any self tests.
	264	*/
	265	if (status & SELF_TEST_FAILED)
	266	return -1;
	267	/*
	268	* Check to see if the board panic'd while booting.
	269	*/
	270	if (status & KERNEL_PANIC)
	271	return -2;
	272	/*
	273	* Wait for the adapter to be up and running. Wait up to 3 minutes
	274	*/
	275	if (!(status & KERNEL_UP_AND_RUNNING))
	276	return -3;
	277	/*
	278	* Everything is OK
	279	*/
	280	return 0;
	281	}
	282
76a7f8fd MH	283	/**
	284	* aac_sa_ioremap
	285	* @size: mapping resize request
	286	*
	287	*/
	288	static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
	289	{
	290	if (!size) {
	291	iounmap(dev->regs.sa);
	292	return 0;
	293	}
	294	dev->base = dev->regs.sa = ioremap(dev->scsi_host_ptr->base, size);
	295	return (dev->base == NULL) ? -1 : 0;
	296	}
	297
1da177e4 LT	298	/**
	299	* aac_sa_init - initialize an ARM based AAC card
	300	* @dev: device to configure
	301	*
	302	* Allocate and set up resources for the ARM based AAC variants. The
	303	* device_interface in the commregion will be allocated and linked
	304	* to the comm region.
	305	*/
	306
	307	int aac_sa_init(struct aac_dev *dev)
	308	{
	309	unsigned long start;
	310	unsigned long status;
	311	int instance;
	312	const char *name;
	313
	314	instance = dev->id;
	315	name = dev->name;
	316
76a7f8fd MH	317	if (aac_sa_ioremap(dev, dev->base_size)) {
	318	printk(KERN_WARNING "%s: unable to map adapter.\n", name);
	319	goto error_iounmap;
	320	}
	321
1da177e4 LT	322	/*
	323	* Check to see if the board failed any self tests.
	324	*/
	325	if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
	326	printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
	327	goto error_iounmap;
	328	}
	329	/*
	330	* Check to see if the board panic'd while booting.
	331	*/
	332	if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
	333	printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
	334	goto error_iounmap;
	335	}
	336	start = jiffies;
	337	/*
	338	* Wait for the adapter to be up and running. Wait up to 3 minutes.
	339	*/
	340	while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
404d9a90	341	if (time_after(jiffies, start+startup_timeout*HZ)) {
1da177e4 LT	342	status = sa_readl(dev, Mailbox7);
	343	printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
	344	name, instance, status);
	345	goto error_iounmap;
	346	}
404d9a90	347	msleep(1);
1da177e4 LT	348	}
1da177e4 LT	349
1d6f359a	350	if (request_irq(dev->scsi_host_ptr->irq, aac_sa_intr, IRQF_SHARED\|IRQF_DISABLED, "aacraid", (void *)dev ) < 0) {
1da177e4 LT	351	printk(KERN_WARNING "%s%d: Interrupt unavailable.\n", name, instance);
	352	goto error_iounmap;
	353	}
	354
	355	/*
	356	* Fill in the function dispatch table.
	357	*/
	358
	359	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
bd1aac80	360	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
1da177e4 LT	361	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
	362	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
	363	dev->a_ops.adapter_check_health = aac_sa_check_health;
76a7f8fd	364	dev->a_ops.adapter_ioremap = aac_sa_ioremap;
1da177e4	365
bd1aac80 MH	366	/*
	367	* First clear out all interrupts. Then enable the one's that
	368	* we can handle.
	369	*/
	370	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	371	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady \| DOORBELL_1 \|
	372	DOORBELL_2 \| DOORBELL_3 \| DOORBELL_4));
1da177e4 LT	373
	374	if(aac_init_adapter(dev) == NULL)
	375	goto error_irq;
	376
1da177e4 LT	377	/*
	378	* Tell the adapter that all is configure, and it can start
	379	* accepting requests
	380	*/
	381	aac_sa_start_adapter(dev);
	382	return 0;
	383
1da177e4	384	error_irq:
bd1aac80	385	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
1da177e4 LT	386	free_irq(dev->scsi_host_ptr->irq, (void *)dev);
	387
	388	error_iounmap:
1da177e4 LT	389
	390	return -1;
	391	}
	392