[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / aacraid / sa.c

/*
 *	Adaptec AAC series RAID controller driver
 *	(c) Copyright 2001 Red Hat Inc.
 *
 * based on the old aacraid driver that is..
 * Adaptec aacraid device driver for Linux.
 *
 * Copyright (c) 2000-2010 Adaptec, Inc.
 *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.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/pci.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/interrupt.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_enable_interrupt	-	enable interrupt
 *	@dev: Which adapter to enable.
 */

static void aac_sa_enable_interrupt (struct aac_dev *dev)
{
	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 |
				DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
}

/**
 *	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)
{
	union aac_init *init;
	/*
	 * Fill in the remaining pieces of the init.
	 */
	init = dev->init;
	init->r7.host_elapsed_seconds = 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);
}

static int aac_sa_restart_adapter(struct aac_dev *dev, int bled)
{
	return -EINVAL;
}

/**
 *	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->base_start, 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);
	}

	/*
	 *	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_enable_int = aac_sa_enable_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_restart = aac_sa_restart_adapter;
	dev->a_ops.adapter_start = aac_sa_start_adapter;
	dev->a_ops.adapter_intr = aac_sa_intr;
	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
	dev->a_ops.adapter_ioremap = aac_sa_ioremap;

	/*
	 *	First clear out all interrupts.  Then enable the one's that 
	 *	we can handle.
	 */
	aac_adapter_disable_int(dev);
	aac_adapter_enable_int(dev);

	if(aac_init_adapter(dev) == NULL)
		goto error_irq;
	dev->sync_mode = 0;	/* sync. mode not supported */
	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
			IRQF_SHARED, "aacraid", (void *)dev) < 0) {
		printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
			name, instance);
		goto error_iounmap;
	}
	dev->dbg_base = dev->base_start;
	dev->dbg_base_mapped = dev->base;
	dev->dbg_size = dev->base_size;

	aac_adapter_enable_int(dev);

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

error_irq:
	aac_sa_disable_interrupt(dev);
	free_irq(dev->pdev->irq, (void *)dev);

error_iounmap:

	return -1;
}
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Adaptec AAC series RAID controller driver
fa195afe	3	* (c) Copyright 2001 Red Hat Inc.
1da177e4 LT	4	*
	5	* based on the old aacraid driver that is..
	6	* Adaptec aacraid device driver for Linux.
	7	*
e8b12f0f MR	8	* Copyright (c) 2000-2010 Adaptec, Inc.
e8b12f0f MR	9	* 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
1da177e4 LT	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2, or (at your option)
	14	* any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; see the file COPYING. If not, write to
	23	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	24	*
	25	* Module Name:
	26	* sa.c
	27	*
	28	* Abstract: Drawbridge specific support functions
	29	*
	30	*/
	31
	32	#include <linux/kernel.h>
	33	#include <linux/init.h>
	34	#include <linux/types.h>
8ef22247	35	#include <linux/pci.h>
1da177e4	36	#include <linux/spinlock.h>
1da177e4 LT	37	#include <linux/blkdev.h>
	38	#include <linux/delay.h>
	39	#include <linux/completion.h>
	40	#include <linux/time.h>
	41	#include <linux/interrupt.h>
1da177e4 LT	42
	43	#include <scsi/scsi_host.h>
	44
	45	#include "aacraid.h"
	46
7d12e780	47	static irqreturn_t aac_sa_intr(int irq, void *dev_id)
1da177e4 LT	48	{
	49	struct aac_dev *dev = dev_id;
	50	unsigned short intstat, mask;
	51
	52	intstat = sa_readw(dev, DoorbellReg_p);
	53	/*
	54	* Read mask and invert because drawbridge is reversed.
	55	* This allows us to only service interrupts that have been enabled.
	56	*/
	57	mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));
	58
	59	/* Check to see if this is our interrupt. If it isn't just return */
	60
	61	if (intstat & mask) {
	62	if (intstat & PrintfReady) {
	63	aac_printf(dev, sa_readl(dev, Mailbox5));
	64	sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
	65	sa_writew(dev, DoorbellReg_s, PrintfDone);
	66	} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
1da177e4	67	sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
df3b7668	68	aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
1da177e4	69	} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
1da177e4	70	sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
df3b7668	71	aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
1da177e4 LT	72	} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
	73	sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
	74	} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
	75	sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
	76	}
	77	return IRQ_HANDLED;
	78	}
	79	return IRQ_NONE;
	80	}
	81
bd1aac80 MH	82	/**
	83	* aac_sa_disable_interrupt - disable interrupt
	84	* @dev: Which adapter to enable.
	85	*/
	86
	87	static void aac_sa_disable_interrupt (struct aac_dev *dev)
	88	{
	89	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	90	}
	91
28713324 MH	92	/**
	93	* aac_sa_enable_interrupt - enable interrupt
	94	* @dev: Which adapter to enable.
	95	*/
	96
	97	static void aac_sa_enable_interrupt (struct aac_dev *dev)
	98	{
	99	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady \| DOORBELL_1 \|
	100	DOORBELL_2 \| DOORBELL_3 \| DOORBELL_4));
	101	}
	102
1da177e4 LT	103	/**
	104	* aac_sa_notify_adapter - handle adapter notification
	105	* @dev: Adapter that notification is for
	106	* @event: Event to notidy
	107	*
	108	* Notify the adapter of an event
	109	*/
	110
4833869e	111	static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
1da177e4 LT	112	{
	113	switch (event) {
	114
	115	case AdapNormCmdQue:
	116	sa_writew(dev, DoorbellReg_s,DOORBELL_1);
	117	break;
	118	case HostNormRespNotFull:
	119	sa_writew(dev, DoorbellReg_s,DOORBELL_4);
	120	break;
	121	case AdapNormRespQue:
	122	sa_writew(dev, DoorbellReg_s,DOORBELL_2);
	123	break;
	124	case HostNormCmdNotFull:
	125	sa_writew(dev, DoorbellReg_s,DOORBELL_3);
	126	break;
	127	case HostShutdown:
7c00ffa3 MH	128	/*
	129	sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
	130	NULL, NULL, NULL, NULL, NULL);
	131	*/
1da177e4 LT	132	break;
	133	case FastIo:
	134	sa_writew(dev, DoorbellReg_s,DOORBELL_6);
	135	break;
	136	case AdapPrintfDone:
	137	sa_writew(dev, DoorbellReg_s,DOORBELL_5);
	138	break;
	139	default:
	140	BUG();
	141	break;
	142	}
	143	}
	144
	145
	146	/**
	147	* sa_sync_cmd - send a command and wait
	148	* @dev: Adapter
	149	* @command: Command to execute
	150	* @p1: first parameter
	151	* @ret: adapter status
	152	*
	153	* This routine will send a synchronous command to the adapter and wait
	154	* for its completion.
	155	*/
	156
7c00ffa3 MH	157	static int sa_sync_cmd(struct aac_dev *dev, u32 command,
	158	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
	159	u32 ret, u32 r1, u32 r2, u32 r3, u32 *r4)
1da177e4 LT	160	{
	161	unsigned long start;
	162	int ok;
	163	/*
	164	* Write the Command into Mailbox 0
	165	*/
	166	sa_writel(dev, Mailbox0, command);
	167	/*
	168	* Write the parameters into Mailboxes 1 - 4
	169	*/
	170	sa_writel(dev, Mailbox1, p1);
7c00ffa3 MH	171	sa_writel(dev, Mailbox2, p2);
	172	sa_writel(dev, Mailbox3, p3);
	173	sa_writel(dev, Mailbox4, p4);
	174
1da177e4 LT	175	/*
	176	* Clear the synch command doorbell to start on a clean slate.
	177	*/
	178	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	179	/*
	180	* Signal that there is a new synch command
	181	*/
	182	sa_writew(dev, DoorbellReg_s, DOORBELL_0);
	183
	184	ok = 0;
	185	start = jiffies;
	186
	187	while(time_before(jiffies, start+30*HZ))
	188	{
	189	/*
	190	* Delay 5uS so that the monitor gets access
	191	*/
	192	udelay(5);
	193	/*
	194	* Mon110 will set doorbell0 bit when it has
	195	* completed the command.
	196	*/
	197	if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0) {
	198	ok = 1;
	199	break;
	200	}
1241f359	201	msleep(1);
1da177e4 LT	202	}
	203
	204	if (ok != 1)
	205	return -ETIMEDOUT;
	206	/*
	207	* Clear the synch command doorbell.
	208	*/
	209	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	210	/*
	211	* Pull the synch status from Mailbox 0.
	212	*/
	213	if (ret)
	214	*ret = sa_readl(dev, Mailbox0);
7c00ffa3 MH	215	if (r1)
	216	*r1 = sa_readl(dev, Mailbox1);
	217	if (r2)
	218	*r2 = sa_readl(dev, Mailbox2);
	219	if (r3)
	220	*r3 = sa_readl(dev, Mailbox3);
	221	if (r4)
	222	*r4 = sa_readl(dev, Mailbox4);
1da177e4 LT	223	return 0;
	224	}
	225
	226	/**
	227	* aac_sa_interrupt_adapter - interrupt an adapter
	228	* @dev: Which adapter to enable.
	229	*
	230	* Breakpoint an adapter.
	231	*/
	232
	233	static void aac_sa_interrupt_adapter (struct aac_dev *dev)
	234	{
7c00ffa3	235	sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
bd1aac80	236	NULL, NULL, NULL, NULL, NULL);
1da177e4 LT	237	}
	238
	239	/**
	240	* aac_sa_start_adapter - activate adapter
	241	* @dev: Adapter
	242	*
	243	* Start up processing on an ARM based AAC adapter
	244	*/
	245
	246	static void aac_sa_start_adapter(struct aac_dev *dev)
	247	{
a1751cda	248	union aac_init *init;
1da177e4 LT	249	/*
	250	* Fill in the remaining pieces of the init.
	251	*/
	252	init = dev->init;
a1751cda	253	init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds());
1da177e4	254	/* We can only use a 32 bit address here */
7c00ffa3 MH	255	sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
7c00ffa3 MH	256	(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
8e0c5ebd	257	NULL, NULL, NULL, NULL, NULL);
1da177e4 LT	258	}
1da177e4 LT	259
2ab01efd SM	260	static int aac_sa_restart_adapter(struct aac_dev *dev, int bled)
	261	{
	262	return -EINVAL;
	263	}
	264
1da177e4 LT	265	/**
	266	* aac_sa_check_health
	267	* @dev: device to check if healthy
	268	*
	269	* Will attempt to determine if the specified adapter is alive and
	270	* capable of handling requests, returning 0 if alive.
	271	*/
	272	static int aac_sa_check_health(struct aac_dev *dev)
	273	{
	274	long status = sa_readl(dev, Mailbox7);
	275
	276	/*
	277	* Check to see if the board failed any self tests.
	278	*/
	279	if (status & SELF_TEST_FAILED)
	280	return -1;
	281	/*
	282	* Check to see if the board panic'd while booting.
	283	*/
	284	if (status & KERNEL_PANIC)
	285	return -2;
	286	/*
	287	* Wait for the adapter to be up and running. Wait up to 3 minutes
	288	*/
	289	if (!(status & KERNEL_UP_AND_RUNNING))
	290	return -3;
	291	/*
	292	* Everything is OK
	293	*/
	294	return 0;
	295	}
	296
76a7f8fd MH	297	/**
	298	* aac_sa_ioremap
	299	* @size: mapping resize request
	300	*
	301	*/
	302	static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
	303	{
	304	if (!size) {
	305	iounmap(dev->regs.sa);
	306	return 0;
	307	}
ff08784b	308	dev->base = dev->regs.sa = ioremap(dev->base_start, size);
76a7f8fd MH	309	return (dev->base == NULL) ? -1 : 0;
	310	}
	311
1da177e4 LT	312	/**
	313	* aac_sa_init - initialize an ARM based AAC card
	314	* @dev: device to configure
	315	*
	316	* Allocate and set up resources for the ARM based AAC variants. The
	317	* device_interface in the commregion will be allocated and linked
	318	* to the comm region.
	319	*/
	320
	321	int aac_sa_init(struct aac_dev *dev)
	322	{
	323	unsigned long start;
	324	unsigned long status;
	325	int instance;
	326	const char *name;
	327
	328	instance = dev->id;
	329	name = dev->name;
	330
76a7f8fd MH	331	if (aac_sa_ioremap(dev, dev->base_size)) {
	332	printk(KERN_WARNING "%s: unable to map adapter.\n", name);
	333	goto error_iounmap;
	334	}
	335
1da177e4 LT	336	/*
	337	* Check to see if the board failed any self tests.
	338	*/
	339	if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
	340	printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
	341	goto error_iounmap;
	342	}
	343	/*
	344	* Check to see if the board panic'd while booting.
	345	*/
	346	if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
	347	printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
	348	goto error_iounmap;
	349	}
	350	start = jiffies;
	351	/*
	352	* Wait for the adapter to be up and running. Wait up to 3 minutes.
	353	*/
	354	while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
404d9a90	355	if (time_after(jiffies, start+startup_timeout*HZ)) {
1da177e4 LT	356	status = sa_readl(dev, Mailbox7);
	357	printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
	358	name, instance, status);
	359	goto error_iounmap;
	360	}
404d9a90	361	msleep(1);
1da177e4 LT	362	}
1da177e4 LT	363
1da177e4 LT	364	/*
	365	* Fill in the function dispatch table.
	366	*/
	367
	368	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
bd1aac80	369	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
28713324	370	dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
1da177e4 LT	371	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
	372	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
	373	dev->a_ops.adapter_check_health = aac_sa_check_health;
2ab01efd	374	dev->a_ops.adapter_restart = aac_sa_restart_adapter;
de665f28	375	dev->a_ops.adapter_start = aac_sa_start_adapter;
28713324	376	dev->a_ops.adapter_intr = aac_sa_intr;
2ab01efd	377	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
76a7f8fd	378	dev->a_ops.adapter_ioremap = aac_sa_ioremap;
1da177e4	379
bd1aac80 MH	380	/*
	381	* First clear out all interrupts. Then enable the one's that
	382	* we can handle.
	383	*/
28713324 MH	384	aac_adapter_disable_int(dev);
28713324 MH	385	aac_adapter_enable_int(dev);
1da177e4 LT	386
	387	if(aac_init_adapter(dev) == NULL)
	388	goto error_irq;
11604612	389	dev->sync_mode = 0; /* sync. mode not supported */
8ef22247	390	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
4909cc2b	391	IRQF_SHARED, "aacraid", (void *)dev) < 0) {
28713324 MH	392	printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
	393	name, instance);
	394	goto error_iounmap;
	395	}
ff08784b	396	dev->dbg_base = dev->base_start;
e8b12f0f MR	397	dev->dbg_base_mapped = dev->base;
	398	dev->dbg_size = dev->base_size;
	399
28713324	400	aac_adapter_enable_int(dev);
1da177e4	401
1da177e4 LT	402	/*
	403	* Tell the adapter that all is configure, and it can start
	404	* accepting requests
	405	*/
	406	aac_sa_start_adapter(dev);
	407	return 0;
	408
1da177e4	409	error_irq:
28713324	410	aac_sa_disable_interrupt(dev);
8ef22247	411	free_irq(dev->pdev->irq, (void *)dev);
1da177e4 LT	412
1da177e4 LT	413	error_iounmap:
1da177e4 LT	414
	415	return -1;
	416	}
	417