[deliverable/linux.git] / drivers / scsi / aic7xxx / aic7xxx_proc.c

/*
 * Copyright (c) 2000-2001 Adaptec Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
 * sym driver.
 *
 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $
 */
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"

static void	copy_mem_info(struct info_str *info, char *data, int len);
static int	copy_info(struct info_str *info, char *fmt, ...);
static void	ahc_dump_target_state(struct ahc_softc *ahc,
				      struct info_str *info,
				      u_int our_id, char channel,
				      u_int target_id, u_int target_offset);
static void	ahc_dump_device_state(struct info_str *info,
				      struct scsi_device *dev);
static int	ahc_proc_write_seeprom(struct ahc_softc *ahc,
				       char *buffer, int length);

/*
 * Table of syncrates that don't follow the "divisible by 4"
 * rule. This table will be expanded in future SCSI specs.
 */
static struct {
	u_int period_factor;
	u_int period;	/* in 100ths of ns */
} scsi_syncrates[] = {
	{ 0x08, 625 },	/* FAST-160 */
	{ 0x09, 1250 },	/* FAST-80 */
	{ 0x0a, 2500 },	/* FAST-40 40MHz */
	{ 0x0b, 3030 },	/* FAST-40 33MHz */
	{ 0x0c, 5000 }	/* FAST-20 */
};

/*
 * Return the frequency in kHz corresponding to the given
 * sync period factor.
 */
static u_int
ahc_calc_syncsrate(u_int period_factor)
{
	int i;
	int num_syncrates;

	num_syncrates = sizeof(scsi_syncrates) / sizeof(scsi_syncrates[0]);
	/* See if the period is in the "exception" table */
	for (i = 0; i < num_syncrates; i++) {

		if (period_factor == scsi_syncrates[i].period_factor) {
			/* Period in kHz */
			return (100000000 / scsi_syncrates[i].period);
		}
	}

	/*
	 * Wasn't in the table, so use the standard
	 * 4 times conversion.
	 */
	return (10000000 / (period_factor * 4 * 10));
}


static void
copy_mem_info(struct info_str *info, char *data, int len)
{
	if (info->pos + len > info->offset + info->length)
		len = info->offset + info->length - info->pos;

	if (info->pos + len < info->offset) {
		info->pos += len;
		return;
	}

	if (info->pos < info->offset) {
		off_t partial;

		partial = info->offset - info->pos;
		data += partial;
		info->pos += partial;
		len  -= partial;
	}

	if (len > 0) {
		memcpy(info->buffer, data, len);
		info->pos += len;
		info->buffer += len;
	}
}

static int
copy_info(struct info_str *info, char *fmt, ...)
{
	va_list args;
	char buf[256];
	int len;

	va_start(args, fmt);
	len = vsprintf(buf, fmt, args);
	va_end(args);

	copy_mem_info(info, buf, len);
	return (len);
}

void
ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo)
{
	u_int speed;
	u_int freq;
	u_int mb;

        speed = 3300;
        freq = 0;
	if (tinfo->offset != 0) {
		freq = ahc_calc_syncsrate(tinfo->period);
		speed = freq;
	}
	speed *= (0x01 << tinfo->width);
        mb = speed / 1000;
        if (mb > 0)
		copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
        else
		copy_info(info, "%dKB/s transfers", speed);

	if (freq != 0) {
		copy_info(info, " (%d.%03dMHz%s, offset %d",
			 freq / 1000, freq % 1000,
			 (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
			 ? " DT" : "", tinfo->offset);
	}

	if (tinfo->width > 0) {
		if (freq != 0) {
			copy_info(info, ", ");
		} else {
			copy_info(info, " (");
		}
		copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
	} else if (freq != 0) {
		copy_info(info, ")");
	}
	copy_info(info, "\n");
}

static void
ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
		      u_int our_id, char channel, u_int target_id,
		      u_int target_offset)
{
	struct	ahc_linux_target *targ;
	struct	scsi_target *starget;
	struct	ahc_initiator_tinfo *tinfo;
	struct	ahc_tmode_tstate *tstate;
	int	lun;

	tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
				    target_id, &tstate);
	if ((ahc->features & AHC_TWIN) != 0)
		copy_info(info, "Channel %c ", channel);
	copy_info(info, "Target %d Negotiation Settings\n", target_id);
	copy_info(info, "\tUser: ");
	ahc_format_transinfo(info, &tinfo->user);
	starget = ahc->platform_data->starget[target_offset];
	if (!starget)
		return;
	targ = scsi_transport_target_data(starget);

	copy_info(info, "\tGoal: ");
	ahc_format_transinfo(info, &tinfo->goal);
	copy_info(info, "\tCurr: ");
	ahc_format_transinfo(info, &tinfo->curr);

	for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
		struct scsi_device *sdev;

		sdev = targ->sdev[lun];

		if (sdev == NULL)
			continue;

		ahc_dump_device_state(info, sdev);
	}
}

static void
ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev)
{
	struct ahc_linux_device *dev = scsi_transport_device_data(sdev);

	copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
		  sdev->sdev_target->channel + 'A',
		  sdev->sdev_target->id, sdev->lun);

	copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
	copy_info(info, "\t\tCommands Active %d\n", dev->active);
	copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
	copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
	copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
}

static int
ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length)
{
	struct seeprom_descriptor sd;
	int have_seeprom;
	u_long s;
	int paused;
	int written;

	/* Default to failure. */
	written = -EINVAL;
	ahc_lock(ahc, &s);
	paused = ahc_is_paused(ahc);
	if (!paused)
		ahc_pause(ahc);

	if (length != sizeof(struct seeprom_config)) {
		printf("ahc_proc_write_seeprom: incorrect buffer size\n");
		goto done;
	}

	have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
	if (have_seeprom == 0) {
		printf("ahc_proc_write_seeprom: cksum verification failed\n");
		goto done;
	}

	sd.sd_ahc = ahc;
#if AHC_PCI_CONFIG > 0
	if ((ahc->chip & AHC_PCI) != 0) {
		sd.sd_control_offset = SEECTL;
		sd.sd_status_offset = SEECTL;
		sd.sd_dataout_offset = SEECTL;
		if (ahc->flags & AHC_LARGE_SEEPROM)
			sd.sd_chip = C56_66;
		else
			sd.sd_chip = C46;
		sd.sd_MS = SEEMS;
		sd.sd_RDY = SEERDY;
		sd.sd_CS = SEECS;
		sd.sd_CK = SEECK;
		sd.sd_DO = SEEDO;
		sd.sd_DI = SEEDI;
		have_seeprom = ahc_acquire_seeprom(ahc, &sd);
	} else
#endif
	if ((ahc->chip & AHC_VL) != 0) {
		sd.sd_control_offset = SEECTL_2840;
		sd.sd_status_offset = STATUS_2840;
		sd.sd_dataout_offset = STATUS_2840;		
		sd.sd_chip = C46;
		sd.sd_MS = 0;
		sd.sd_RDY = EEPROM_TF;
		sd.sd_CS = CS_2840;
		sd.sd_CK = CK_2840;
		sd.sd_DO = DO_2840;
		sd.sd_DI = DI_2840;
		have_seeprom = TRUE;
	} else {
		printf("ahc_proc_write_seeprom: unsupported adapter type\n");
		goto done;
	}

	if (!have_seeprom) {
		printf("ahc_proc_write_seeprom: No Serial EEPROM\n");
		goto done;
	} else {
		u_int start_addr;

		if (ahc->seep_config == NULL) {
			ahc->seep_config = malloc(sizeof(*ahc->seep_config),
						  M_DEVBUF, M_NOWAIT);
			if (ahc->seep_config == NULL) {
				printf("aic7xxx: Unable to allocate serial "
				       "eeprom buffer.  Write failing\n");
				goto done;
			}
		}
		printf("aic7xxx: Writing Serial EEPROM\n");
		start_addr = 32 * (ahc->channel - 'A');
		ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
				  sizeof(struct seeprom_config)/2);
		ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
				 start_addr, sizeof(struct seeprom_config)/2);
#if AHC_PCI_CONFIG > 0
		if ((ahc->chip & AHC_VL) == 0)
			ahc_release_seeprom(&sd);
#endif
		written = length;
	}

done:
	if (!paused)
		ahc_unpause(ahc);
	ahc_unlock(ahc, &s);
	return (written);
}

/*
 * Return information to handle /proc support for the driver.
 */
int
ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
		    off_t offset, int length, int inout)
{
	struct	ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
	struct	info_str info;
	char	ahc_info[256];
	u_int	max_targ;
	u_int	i;
	int	retval;

	 /* Has data been written to the file? */ 
	if (inout == TRUE) {
		retval = ahc_proc_write_seeprom(ahc, buffer, length);
		goto done;
	}

	if (start)
		*start = buffer;

	info.buffer	= buffer;
	info.length	= length;
	info.offset	= offset;
	info.pos	= 0;

	copy_info(&info, "Adaptec AIC7xxx driver version: %s\n",
		  AIC7XXX_DRIVER_VERSION);
	copy_info(&info, "%s\n", ahc->description);
	ahc_controller_info(ahc, ahc_info);
	copy_info(&info, "%s\n", ahc_info);
	copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
		  ahc->scb_data->numscbs, AHC_NSEG);


	if (ahc->seep_config == NULL)
		copy_info(&info, "No Serial EEPROM\n");
	else {
		copy_info(&info, "Serial EEPROM:\n");
		for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
			if (((i % 8) == 0) && (i != 0)) {
				copy_info(&info, "\n");
			}
			copy_info(&info, "0x%.4x ",
				  ((uint16_t*)ahc->seep_config)[i]);
		}
		copy_info(&info, "\n");
	}
	copy_info(&info, "\n");

	max_targ = 15;
	if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
		max_targ = 7;

	for (i = 0; i <= max_targ; i++) {
		u_int our_id;
		u_int target_id;
		char channel;

		channel = 'A';
		our_id = ahc->our_id;
		target_id = i;
		if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
			channel = 'B';
			our_id = ahc->our_id_b;
			target_id = i % 8;
		}

		ahc_dump_target_state(ahc, &info, our_id,
				      channel, target_id, i);
	}
	retval = info.pos > info.offset ? info.pos - info.offset : 0;
done:
	return (retval);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) 2000-2001 Adaptec Inc.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions, and the following disclaimer,
	10	* without modification.
	11	* 2. Redistributions in binary form must reproduce at minimum a disclaimer
	12	* substantially similar to the "NO WARRANTY" disclaimer below
	13	* ("Disclaimer") and any redistribution must be conditioned upon
	14	* including a substantially similar Disclaimer requirement for further
	15	* binary redistribution.
	16	* 3. Neither the names of the above-listed copyright holders nor the names
	17	* of any contributors may be used to endorse or promote products derived
	18	* from this software without specific prior written permission.
	19	*
	20	* Alternatively, this software may be distributed under the terms of the
	21	* GNU General Public License ("GPL") version 2 as published by the Free
	22	* Software Foundation.
	23	*
	24	* NO WARRANTY
	25	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	26	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	27	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
	28	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	29	* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	30	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	31	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	32	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	33	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	34	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	35	* POSSIBILITY OF SUCH DAMAGES.
	36	*
	37	* String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
	38	* sym driver.
	39	*
	40	* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $
	41	*/
	42	#include "aic7xxx_osm.h"
	43	#include "aic7xxx_inline.h"
	44	#include "aic7xxx_93cx6.h"
	45
	46	static void copy_mem_info(struct info_str info, char data, int len);
	47	static int copy_info(struct info_str info, char fmt, ...);
	48	static void ahc_dump_target_state(struct ahc_softc *ahc,
	49	struct info_str *info,
	50	u_int our_id, char channel,
	51	u_int target_id, u_int target_offset);
	52	static void ahc_dump_device_state(struct info_str *info,
b1abb4d6	53	struct scsi_device *dev);
1da177e4 LT	54	static int ahc_proc_write_seeprom(struct ahc_softc *ahc,
	55	char *buffer, int length);
	56
1ff92730 CH	57	/*
	58	* Table of syncrates that don't follow the "divisible by 4"
	59	* rule. This table will be expanded in future SCSI specs.
	60	*/
	61	static struct {
	62	u_int period_factor;
	63	u_int period; /* in 100ths of ns */
	64	} scsi_syncrates[] = {
	65	{ 0x08, 625 }, /* FAST-160 */
	66	{ 0x09, 1250 }, /* FAST-80 */
	67	{ 0x0a, 2500 }, /* FAST-40 40MHz */
	68	{ 0x0b, 3030 }, /* FAST-40 33MHz */
	69	{ 0x0c, 5000 } /* FAST-20 */
	70	};
	71
	72	/*
	73	* Return the frequency in kHz corresponding to the given
	74	* sync period factor.
	75	*/
	76	static u_int
	77	ahc_calc_syncsrate(u_int period_factor)
	78	{
	79	int i;
	80	int num_syncrates;
	81
	82	num_syncrates = sizeof(scsi_syncrates) / sizeof(scsi_syncrates[0]);
	83	/* See if the period is in the "exception" table */
	84	for (i = 0; i < num_syncrates; i++) {
	85
	86	if (period_factor == scsi_syncrates[i].period_factor) {
	87	/* Period in kHz */
	88	return (100000000 / scsi_syncrates[i].period);
	89	}
	90	}
	91
	92	/*
	93	* Wasn't in the table, so use the standard
	94	* 4 times conversion.
	95	*/
	96	return (10000000 / (period_factor * 4 * 10));
	97	}
	98
	99
1da177e4 LT	100	static void
	101	copy_mem_info(struct info_str info, char data, int len)
	102	{
	103	if (info->pos + len > info->offset + info->length)
	104	len = info->offset + info->length - info->pos;
	105
	106	if (info->pos + len < info->offset) {
	107	info->pos += len;
	108	return;
	109	}
	110
	111	if (info->pos < info->offset) {
	112	off_t partial;
	113
	114	partial = info->offset - info->pos;
	115	data += partial;
	116	info->pos += partial;
	117	len -= partial;
	118	}
	119
	120	if (len > 0) {
	121	memcpy(info->buffer, data, len);
	122	info->pos += len;
	123	info->buffer += len;
	124	}
	125	}
	126
	127	static int
	128	copy_info(struct info_str info, char fmt, ...)
	129	{
	130	va_list args;
	131	char buf[256];
	132	int len;
	133
	134	va_start(args, fmt);
	135	len = vsprintf(buf, fmt, args);
	136	va_end(args);
	137
	138	copy_mem_info(info, buf, len);
	139	return (len);
	140	}
	141
	142	void
	143	ahc_format_transinfo(struct info_str info, struct ahc_transinfo tinfo)
	144	{
	145	u_int speed;
	146	u_int freq;
	147	u_int mb;
	148
	149	speed = 3300;
	150	freq = 0;
	151	if (tinfo->offset != 0) {
1ff92730	152	freq = ahc_calc_syncsrate(tinfo->period);
1da177e4 LT	153	speed = freq;
	154	}
	155	speed *= (0x01 << tinfo->width);
	156	mb = speed / 1000;
	157	if (mb > 0)
	158	copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
	159	else
	160	copy_info(info, "%dKB/s transfers", speed);
	161
	162	if (freq != 0) {
	163	copy_info(info, " (%d.%03dMHz%s, offset %d",
	164	freq / 1000, freq % 1000,
	165	(tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
	166	? " DT" : "", tinfo->offset);
	167	}
	168
	169	if (tinfo->width > 0) {
	170	if (freq != 0) {
	171	copy_info(info, ", ");
	172	} else {
	173	copy_info(info, " (");
	174	}
	175	copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
	176	} else if (freq != 0) {
	177	copy_info(info, ")");
	178	}
	179	copy_info(info, "\n");
	180	}
	181
	182	static void
	183	ahc_dump_target_state(struct ahc_softc ahc, struct info_str info,
	184	u_int our_id, char channel, u_int target_id,
	185	u_int target_offset)
	186	{
	187	struct ahc_linux_target *targ;
b1abb4d6	188	struct scsi_target *starget;
1da177e4 LT	189	struct ahc_initiator_tinfo *tinfo;
	190	struct ahc_tmode_tstate *tstate;
	191	int lun;
	192
	193	tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
	194	target_id, &tstate);
	195	if ((ahc->features & AHC_TWIN) != 0)
	196	copy_info(info, "Channel %c ", channel);
	197	copy_info(info, "Target %d Negotiation Settings\n", target_id);
	198	copy_info(info, "\tUser: ");
	199	ahc_format_transinfo(info, &tinfo->user);
b1abb4d6	200	starget = ahc->platform_data->starget[target_offset];
c0df28cf	201	if (!starget)
1da177e4	202	return;
c0df28cf	203	targ = scsi_transport_target_data(starget);
1da177e4 LT	204
	205	copy_info(info, "\tGoal: ");
	206	ahc_format_transinfo(info, &tinfo->goal);
	207	copy_info(info, "\tCurr: ");
	208	ahc_format_transinfo(info, &tinfo->curr);
	209
	210	for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
b1abb4d6	211	struct scsi_device *sdev;
1da177e4	212
b1abb4d6	213	sdev = targ->sdev[lun];
1da177e4	214
b1abb4d6	215	if (sdev == NULL)
1da177e4 LT	216	continue;
1da177e4 LT	217
b1abb4d6	218	ahc_dump_device_state(info, sdev);
1da177e4 LT	219	}
	220	}
	221
	222	static void
b1abb4d6	223	ahc_dump_device_state(struct info_str info, struct scsi_device sdev)
1da177e4	224	{
b1abb4d6 JB	225	struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
b1abb4d6 JB	226
1da177e4	227	copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
b1abb4d6 JB	228	sdev->sdev_target->channel + 'A',
b1abb4d6 JB	229	sdev->sdev_target->id, sdev->lun);
1da177e4 LT	230
	231	copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
	232	copy_info(info, "\t\tCommands Active %d\n", dev->active);
	233	copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
	234	copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
	235	copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
	236	}
	237
	238	static int
	239	ahc_proc_write_seeprom(struct ahc_softc ahc, char buffer, int length)
	240	{
	241	struct seeprom_descriptor sd;
	242	int have_seeprom;
	243	u_long s;
	244	int paused;
	245	int written;
	246
	247	/* Default to failure. */
	248	written = -EINVAL;
	249	ahc_lock(ahc, &s);
	250	paused = ahc_is_paused(ahc);
	251	if (!paused)
	252	ahc_pause(ahc);
	253
	254	if (length != sizeof(struct seeprom_config)) {
	255	printf("ahc_proc_write_seeprom: incorrect buffer size\n");
	256	goto done;
	257	}
	258
	259	have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
	260	if (have_seeprom == 0) {
	261	printf("ahc_proc_write_seeprom: cksum verification failed\n");
	262	goto done;
	263	}
	264
	265	sd.sd_ahc = ahc;
	266	#if AHC_PCI_CONFIG > 0
	267	if ((ahc->chip & AHC_PCI) != 0) {
	268	sd.sd_control_offset = SEECTL;
	269	sd.sd_status_offset = SEECTL;
	270	sd.sd_dataout_offset = SEECTL;
	271	if (ahc->flags & AHC_LARGE_SEEPROM)
	272	sd.sd_chip = C56_66;
	273	else
	274	sd.sd_chip = C46;
	275	sd.sd_MS = SEEMS;
	276	sd.sd_RDY = SEERDY;
	277	sd.sd_CS = SEECS;
	278	sd.sd_CK = SEECK;
	279	sd.sd_DO = SEEDO;
	280	sd.sd_DI = SEEDI;
	281	have_seeprom = ahc_acquire_seeprom(ahc, &sd);
	282	} else
	283	#endif
	284	if ((ahc->chip & AHC_VL) != 0) {
	285	sd.sd_control_offset = SEECTL_2840;
	286	sd.sd_status_offset = STATUS_2840;
	287	sd.sd_dataout_offset = STATUS_2840;
	288	sd.sd_chip = C46;
	289	sd.sd_MS = 0;
	290	sd.sd_RDY = EEPROM_TF;
	291	sd.sd_CS = CS_2840;
	292	sd.sd_CK = CK_2840;
	293	sd.sd_DO = DO_2840;
294	sd.sd_DI = DI_2840;
295	have_seeprom = TRUE;
296	} else {
297	printf("ahc_proc_write_seeprom: unsupported adapter type\n");
298	goto done;
299	}
300
301	if (!have_seeprom) {
302	printf("ahc_proc_write_seeprom: No Serial EEPROM\n");
303	goto done;
304	} else {
305	u_int start_addr;
306
307	if (ahc->seep_config == NULL) {
308	ahc->seep_config = malloc(sizeof(*ahc->seep_config),
309	M_DEVBUF, M_NOWAIT);
310	if (ahc->seep_config == NULL) {
311	printf("aic7xxx: Unable to allocate serial "
312	"eeprom buffer. Write failing\n");
313	goto done;
314	}
315	}
316	printf("aic7xxx: Writing Serial EEPROM\n");
317	start_addr = 32 * (ahc->channel - 'A');
318	ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
319	sizeof(struct seeprom_config)/2);
320	ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
321	start_addr, sizeof(struct seeprom_config)/2);
322	#if AHC_PCI_CONFIG > 0
323	if ((ahc->chip & AHC_VL) == 0)
324	ahc_release_seeprom(&sd);
325	#endif
326	written = length;
327	}
328
329	done:
330	if (!paused)
331	ahc_unpause(ahc);
332	ahc_unlock(ahc, &s);
333	return (written);
334	}
335
336	/*
337	* Return information to handle /proc support for the driver.
338	*/
339	int
1da177e4 LT	340	ahc_linux_proc_info(struct Scsi_Host shost, char buffer, char **start,
1da177e4 LT	341	off_t offset, int length, int inout)
1da177e4	342	{
3d65692a	343	struct ahc_softc ahc = (struct ahc_softc **)shost->hostdata;
1da177e4 LT	344	struct info_str info;
1da177e4 LT	345	char ahc_info[256];
1da177e4 LT	346	u_int max_targ;
	347	u_int i;
	348	int retval;
	349
1da177e4 LT	350	/* Has data been written to the file? */
	351	if (inout == TRUE) {
	352	retval = ahc_proc_write_seeprom(ahc, buffer, length);
	353	goto done;
	354	}
	355
	356	if (start)
	357	*start = buffer;
	358
	359	info.buffer = buffer;
	360	info.length = length;
	361	info.offset = offset;
	362	info.pos = 0;
	363
	364	copy_info(&info, "Adaptec AIC7xxx driver version: %s\n",
	365	AIC7XXX_DRIVER_VERSION);
	366	copy_info(&info, "%s\n", ahc->description);
	367	ahc_controller_info(ahc, ahc_info);
	368	copy_info(&info, "%s\n", ahc_info);
	369	copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
	370	ahc->scb_data->numscbs, AHC_NSEG);
	371
	372
	373	if (ahc->seep_config == NULL)
	374	copy_info(&info, "No Serial EEPROM\n");
	375	else {
	376	copy_info(&info, "Serial EEPROM:\n");
	377	for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
	378	if (((i % 8) == 0) && (i != 0)) {
	379	copy_info(&info, "\n");
	380	}
	381	copy_info(&info, "0x%.4x ",
	382	((uint16_t*)ahc->seep_config)[i]);
	383	}
	384	copy_info(&info, "\n");
	385	}
	386	copy_info(&info, "\n");
	387
	388	max_targ = 15;
	389	if ((ahc->features & (AHC_WIDE\|AHC_TWIN)) == 0)
	390	max_targ = 7;
	391
	392	for (i = 0; i <= max_targ; i++) {
	393	u_int our_id;
	394	u_int target_id;
	395	char channel;
	396
	397	channel = 'A';
	398	our_id = ahc->our_id;
	399	target_id = i;
	400	if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
	401	channel = 'B';
	402	our_id = ahc->our_id_b;
	403	target_id = i % 8;
	404	}
	405
	406	ahc_dump_target_state(ahc, &info, our_id,
	407	channel, target_id, i);
	408	}
	409	retval = info.pos > info.offset ? info.pos - info.offset : 0;
	410	done:
1da177e4 LT	411	return (retval);
1da177e4 LT	412	}