[deliverable/linux.git] / drivers / media / video / pvrusb2 / pvrusb2-debugifc.c

/*
 *
 *
 *  Copyright (C) 2005 Mike Isely <isely@pobox.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 of the License
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/string.h>
#include <linux/slab.h>
#include "pvrusb2-debugifc.h"
#include "pvrusb2-hdw.h"
#include "pvrusb2-debug.h"

struct debugifc_mask_item {
	const char *name;
	unsigned long msk;
};


static unsigned int debugifc_count_whitespace(const char *buf,
					      unsigned int count)
{
	unsigned int scnt;
	char ch;

	for (scnt = 0; scnt < count; scnt++) {
		ch = buf[scnt];
		if (ch == ' ') continue;
		if (ch == '\t') continue;
		if (ch == '\n') continue;
		break;
	}
	return scnt;
}


static unsigned int debugifc_count_nonwhitespace(const char *buf,
						 unsigned int count)
{
	unsigned int scnt;
	char ch;

	for (scnt = 0; scnt < count; scnt++) {
		ch = buf[scnt];
		if (ch == ' ') break;
		if (ch == '\t') break;
		if (ch == '\n') break;
	}
	return scnt;
}


static unsigned int debugifc_isolate_word(const char *buf,unsigned int count,
					  const char **wstrPtr,
					  unsigned int *wlenPtr)
{
	const char *wptr;
	unsigned int consume_cnt = 0;
	unsigned int wlen;
	unsigned int scnt;

	wptr = NULL;
	wlen = 0;
	scnt = debugifc_count_whitespace(buf,count);
	consume_cnt += scnt; count -= scnt; buf += scnt;
	if (!count) goto done;

	scnt = debugifc_count_nonwhitespace(buf,count);
	if (!scnt) goto done;
	wptr = buf;
	wlen = scnt;
	consume_cnt += scnt; count -= scnt; buf += scnt;

 done:
	*wstrPtr = wptr;
	*wlenPtr = wlen;
	return consume_cnt;
}


static int debugifc_parse_unsigned_number(const char *buf,unsigned int count,
					  u32 *num_ptr)
{
	u32 result = 0;
	u32 val;
	int ch;
	int radix = 10;
	if ((count >= 2) && (buf[0] == '0') &&
	    ((buf[1] == 'x') || (buf[1] == 'X'))) {
		radix = 16;
		count -= 2;
		buf += 2;
	} else if ((count >= 1) && (buf[0] == '0')) {
		radix = 8;
	}

	while (count--) {
		ch = *buf++;
		if ((ch >= '0') && (ch <= '9')) {
			val = ch - '0';
		} else if ((ch >= 'a') && (ch <= 'f')) {
			val = ch - 'a' + 10;
		} else if ((ch >= 'A') && (ch <= 'F')) {
			val = ch - 'A' + 10;
		} else {
			return -EINVAL;
		}
		if (val >= radix) return -EINVAL;
		result *= radix;
		result += val;
	}
	*num_ptr = result;
	return 0;
}


static int debugifc_match_keyword(const char *buf,unsigned int count,
				  const char *keyword)
{
	unsigned int kl;
	if (!keyword) return 0;
	kl = strlen(keyword);
	if (kl != count) return 0;
	return !memcmp(buf,keyword,kl);
}


int pvr2_debugifc_print_info(struct pvr2_hdw *hdw,char *buf,unsigned int acnt)
{
	int bcnt = 0;
	int ccnt;
	ccnt = scnprintf(buf,acnt,"Driver state info:\n");
	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	ccnt = pvr2_hdw_state_report(hdw,buf,acnt);
	bcnt += ccnt; acnt -= ccnt; buf += ccnt;

	return bcnt;
}


int pvr2_debugifc_print_status(struct pvr2_hdw *hdw,
			       char *buf,unsigned int acnt)
{
	int bcnt = 0;
	int ccnt;
	int ret;
	u32 gpio_dir,gpio_in,gpio_out;
	struct pvr2_stream_stats stats;
	struct pvr2_stream *sp;

	ret = pvr2_hdw_is_hsm(hdw);
	ccnt = scnprintf(buf,acnt,"USB link speed: %s\n",
			 (ret < 0 ? "FAIL" : (ret ? "high" : "full")));
	bcnt += ccnt; acnt -= ccnt; buf += ccnt;

	gpio_dir = 0; gpio_in = 0; gpio_out = 0;
	pvr2_hdw_gpio_get_dir(hdw,&gpio_dir);
	pvr2_hdw_gpio_get_out(hdw,&gpio_out);
	pvr2_hdw_gpio_get_in(hdw,&gpio_in);
	ccnt = scnprintf(buf,acnt,"GPIO state: dir=0x%x in=0x%x out=0x%x\n",
			 gpio_dir,gpio_in,gpio_out);
	bcnt += ccnt; acnt -= ccnt; buf += ccnt;

	ccnt = scnprintf(buf,acnt,"Streaming is %s\n",
			 pvr2_hdw_get_streaming(hdw) ? "on" : "off");
	bcnt += ccnt; acnt -= ccnt; buf += ccnt;


	sp = pvr2_hdw_get_video_stream(hdw);
	if (sp) {
		pvr2_stream_get_stats(sp, &stats, 0);
		ccnt = scnprintf(
			buf,acnt,
			"Bytes streamed=%u"
			" URBs: queued=%u idle=%u ready=%u"
			" processed=%u failed=%u\n",
			stats.bytes_processed,
			stats.buffers_in_queue,
			stats.buffers_in_idle,
			stats.buffers_in_ready,
			stats.buffers_processed,
			stats.buffers_failed);
		bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	}

	return bcnt;
}


static int pvr2_debugifc_do1cmd(struct pvr2_hdw *hdw,const char *buf,
				unsigned int count)
{
	const char *wptr;
	unsigned int wlen;
	unsigned int scnt;

	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	if (!scnt) return 0;
	count -= scnt; buf += scnt;
	if (!wptr) return 0;

	pvr2_trace(PVR2_TRACE_DEBUGIFC,"debugifc cmd: \"%.*s\"",wlen,wptr);
	if (debugifc_match_keyword(wptr,wlen,"reset")) {
		scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
		if (!scnt) return -EINVAL;
		count -= scnt; buf += scnt;
		if (!wptr) return -EINVAL;
		if (debugifc_match_keyword(wptr,wlen,"cpu")) {
			pvr2_hdw_cpureset_assert(hdw,!0);
			pvr2_hdw_cpureset_assert(hdw,0);
			return 0;
		} else if (debugifc_match_keyword(wptr,wlen,"bus")) {
			pvr2_hdw_device_reset(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"soft")) {
			return pvr2_hdw_cmd_powerup(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"deep")) {
			return pvr2_hdw_cmd_deep_reset(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"firmware")) {
			return pvr2_upload_firmware2(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"decoder")) {
			return pvr2_hdw_cmd_decoder_reset(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"worker")) {
			return pvr2_hdw_untrip(hdw);
		} else if (debugifc_match_keyword(wptr,wlen,"usbstats")) {
			pvr2_stream_get_stats(pvr2_hdw_get_video_stream(hdw),
					      NULL, !0);
			return 0;
		}
		return -EINVAL;
	} else if (debugifc_match_keyword(wptr,wlen,"cpufw")) {
		scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
		if (!scnt) return -EINVAL;
		count -= scnt; buf += scnt;
		if (!wptr) return -EINVAL;
		if (debugifc_match_keyword(wptr,wlen,"fetch")) {
			scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
			if (scnt && wptr) {
				count -= scnt; buf += scnt;
				if (debugifc_match_keyword(wptr,wlen,"prom")) {
					pvr2_hdw_cpufw_set_enabled(hdw,!0,!0);
				} else if (debugifc_match_keyword(wptr,wlen,
								  "ram")) {
					pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
				} else {
					return -EINVAL;
				}
			}
			pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
			return 0;
		} else if (debugifc_match_keyword(wptr,wlen,"done")) {
			pvr2_hdw_cpufw_set_enabled(hdw,0,0);
			return 0;
		} else {
			return -EINVAL;
		}
	} else if (debugifc_match_keyword(wptr,wlen,"gpio")) {
		int dir_fl = 0;
		int ret;
		u32 msk,val;
		scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
		if (!scnt) return -EINVAL;
		count -= scnt; buf += scnt;
		if (!wptr) return -EINVAL;
		if (debugifc_match_keyword(wptr,wlen,"dir")) {
			dir_fl = !0;
		} else if (!debugifc_match_keyword(wptr,wlen,"out")) {
			return -EINVAL;
		}
		scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
		if (!scnt) return -EINVAL;
		count -= scnt; buf += scnt;
		if (!wptr) return -EINVAL;
		ret = debugifc_parse_unsigned_number(wptr,wlen,&msk);
		if (ret) return ret;
		scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
		if (wptr) {
			ret = debugifc_parse_unsigned_number(wptr,wlen,&val);
			if (ret) return ret;
		} else {
			val = msk;
			msk = 0xffffffff;
		}
		if (dir_fl) {
			ret = pvr2_hdw_gpio_chg_dir(hdw,msk,val);
		} else {
			ret = pvr2_hdw_gpio_chg_out(hdw,msk,val);
		}
		return ret;
	}
	pvr2_trace(PVR2_TRACE_DEBUGIFC,
		   "debugifc failed to recognize cmd: \"%.*s\"",wlen,wptr);
	return -EINVAL;
}


int pvr2_debugifc_docmd(struct pvr2_hdw *hdw,const char *buf,
			unsigned int count)
{
	unsigned int bcnt = 0;
	int ret;

	while (count) {
		for (bcnt = 0; bcnt < count; bcnt++) {
			if (buf[bcnt] == '\n') break;
		}

		ret = pvr2_debugifc_do1cmd(hdw,buf,bcnt);
		if (ret < 0) return ret;
		if (bcnt < count) bcnt++;
		buf += bcnt;
		count -= bcnt;
	}

	return 0;
}


/*
  Stuff for Emacs to see, in order to encourage consistent editing style:
  *** Local Variables: ***
  *** mode: c ***
  *** fill-column: 75 ***
  *** tab-width: 8 ***
  *** c-basic-offset: 8 ***
  *** End: ***
  */
Commit	Line	Data
d855497e MI	1	/*
d855497e MI	2	*
d855497e MI	3	*
	4	* Copyright (C) 2005 Mike Isely <isely@pobox.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License
	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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*
	19	*/
	20
	21	#include <linux/string.h>
	22	#include <linux/slab.h>
	23	#include "pvrusb2-debugifc.h"
	24	#include "pvrusb2-hdw.h"
	25	#include "pvrusb2-debug.h"
d855497e MI	26
	27	struct debugifc_mask_item {
	28	const char *name;
	29	unsigned long msk;
	30	};
	31
d855497e MI	32
	33	static unsigned int debugifc_count_whitespace(const char *buf,
	34	unsigned int count)
	35	{
	36	unsigned int scnt;
	37	char ch;
	38
	39	for (scnt = 0; scnt < count; scnt++) {
	40	ch = buf[scnt];
	41	if (ch == ' ') continue;
	42	if (ch == '\t') continue;
	43	if (ch == '\n') continue;
	44	break;
	45	}
	46	return scnt;
	47	}
	48
	49
	50	static unsigned int debugifc_count_nonwhitespace(const char *buf,
	51	unsigned int count)
	52	{
	53	unsigned int scnt;
	54	char ch;
	55
	56	for (scnt = 0; scnt < count; scnt++) {
	57	ch = buf[scnt];
	58	if (ch == ' ') break;
	59	if (ch == '\t') break;
	60	if (ch == '\n') break;
	61	}
	62	return scnt;
	63	}
	64
	65
	66	static unsigned int debugifc_isolate_word(const char *buf,unsigned int count,
	67	const char **wstrPtr,
	68	unsigned int *wlenPtr)
	69	{
	70	const char *wptr;
	71	unsigned int consume_cnt = 0;
	72	unsigned int wlen;
	73	unsigned int scnt;
	74
a0fd1cb1	75	wptr = NULL;
d855497e MI	76	wlen = 0;
	77	scnt = debugifc_count_whitespace(buf,count);
	78	consume_cnt += scnt; count -= scnt; buf += scnt;
	79	if (!count) goto done;
	80
	81	scnt = debugifc_count_nonwhitespace(buf,count);
	82	if (!scnt) goto done;
	83	wptr = buf;
	84	wlen = scnt;
	85	consume_cnt += scnt; count -= scnt; buf += scnt;
	86
	87	done:
	88	*wstrPtr = wptr;
	89	*wlenPtr = wlen;
	90	return consume_cnt;
	91	}
	92
	93
	94	static int debugifc_parse_unsigned_number(const char *buf,unsigned int count,
	95	u32 *num_ptr)
	96	{
	97	u32 result = 0;
	98	u32 val;
	99	int ch;
	100	int radix = 10;
	101	if ((count >= 2) && (buf[0] == '0') &&
	102	((buf[1] == 'x') \|\| (buf[1] == 'X'))) {
	103	radix = 16;
	104	count -= 2;
	105	buf += 2;
	106	} else if ((count >= 1) && (buf[0] == '0')) {
	107	radix = 8;
	108	}
	109
	110	while (count--) {
	111	ch = *buf++;
	112	if ((ch >= '0') && (ch <= '9')) {
	113	val = ch - '0';
	114	} else if ((ch >= 'a') && (ch <= 'f')) {
	115	val = ch - 'a' + 10;
	116	} else if ((ch >= 'A') && (ch <= 'F')) {
	117	val = ch - 'A' + 10;
	118	} else {
	119	return -EINVAL;
	120	}
	121	if (val >= radix) return -EINVAL;
	122	result *= radix;
	123	result += val;
	124	}
	125	*num_ptr = result;
	126	return 0;
	127	}
	128
	129
	130	static int debugifc_match_keyword(const char *buf,unsigned int count,
	131	const char *keyword)
	132	{
	133	unsigned int kl;
	134	if (!keyword) return 0;
	135	kl = strlen(keyword);
	136	if (kl != count) return 0;
	137	return !memcmp(buf,keyword,kl);
	138	}
	139
140
d855497e MI	141	int pvr2_debugifc_print_info(struct pvr2_hdw hdw,char buf,unsigned int acnt)
	142	{
	143	int bcnt = 0;
	144	int ccnt;
681c7399	145	ccnt = scnprintf(buf,acnt,"Driver state info:\n");
d855497e	146	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
681c7399	147	ccnt = pvr2_hdw_state_report(hdw,buf,acnt);
d855497e	148	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
d855497e MI	149
	150	return bcnt;
	151	}
	152
	153
	154	int pvr2_debugifc_print_status(struct pvr2_hdw *hdw,
	155	char *buf,unsigned int acnt)
	156	{
	157	int bcnt = 0;
	158	int ccnt;
d855497e MI	159	int ret;
d855497e MI	160	u32 gpio_dir,gpio_in,gpio_out;
ad0992e9 MI	161	struct pvr2_stream_stats stats;
ad0992e9 MI	162	struct pvr2_stream *sp;
d855497e MI	163
	164	ret = pvr2_hdw_is_hsm(hdw);
	165	ccnt = scnprintf(buf,acnt,"USB link speed: %s\n",
	166	(ret < 0 ? "FAIL" : (ret ? "high" : "full")));
	167	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	168
	169	gpio_dir = 0; gpio_in = 0; gpio_out = 0;
	170	pvr2_hdw_gpio_get_dir(hdw,&gpio_dir);
	171	pvr2_hdw_gpio_get_out(hdw,&gpio_out);
	172	pvr2_hdw_gpio_get_in(hdw,&gpio_in);
	173	ccnt = scnprintf(buf,acnt,"GPIO state: dir=0x%x in=0x%x out=0x%x\n",
	174	gpio_dir,gpio_in,gpio_out);
	175	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	176
	177	ccnt = scnprintf(buf,acnt,"Streaming is %s\n",
	178	pvr2_hdw_get_streaming(hdw) ? "on" : "off");
	179	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	180
ad0992e9 MI	181
	182	sp = pvr2_hdw_get_video_stream(hdw);
	183	if (sp) {
	184	pvr2_stream_get_stats(sp, &stats, 0);
	185	ccnt = scnprintf(
	186	buf,acnt,
	187	"Bytes streamed=%u"
	188	" URBs: queued=%u idle=%u ready=%u"
	189	" processed=%u failed=%u\n",
	190	stats.bytes_processed,
	191	stats.buffers_in_queue,
	192	stats.buffers_in_idle,
	193	stats.buffers_in_ready,
	194	stats.buffers_processed,
	195	stats.buffers_failed);
	196	bcnt += ccnt; acnt -= ccnt; buf += ccnt;
	197	}
	198
d855497e MI	199	return bcnt;
	200	}
	201
	202
07e337ee AB	203	static int pvr2_debugifc_do1cmd(struct pvr2_hdw hdw,const char buf,
07e337ee AB	204	unsigned int count)
d855497e MI	205	{
	206	const char *wptr;
	207	unsigned int wlen;
	208	unsigned int scnt;
	209
	210	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	211	if (!scnt) return 0;
	212	count -= scnt; buf += scnt;
	213	if (!wptr) return 0;
	214
	215	pvr2_trace(PVR2_TRACE_DEBUGIFC,"debugifc cmd: \"%.*s\"",wlen,wptr);
	216	if (debugifc_match_keyword(wptr,wlen,"reset")) {
	217	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	218	if (!scnt) return -EINVAL;
	219	count -= scnt; buf += scnt;
	220	if (!wptr) return -EINVAL;
	221	if (debugifc_match_keyword(wptr,wlen,"cpu")) {
	222	pvr2_hdw_cpureset_assert(hdw,!0);
	223	pvr2_hdw_cpureset_assert(hdw,0);
	224	return 0;
	225	} else if (debugifc_match_keyword(wptr,wlen,"bus")) {
	226	pvr2_hdw_device_reset(hdw);
	227	} else if (debugifc_match_keyword(wptr,wlen,"soft")) {
	228	return pvr2_hdw_cmd_powerup(hdw);
	229	} else if (debugifc_match_keyword(wptr,wlen,"deep")) {
	230	return pvr2_hdw_cmd_deep_reset(hdw);
	231	} else if (debugifc_match_keyword(wptr,wlen,"firmware")) {
	232	return pvr2_upload_firmware2(hdw);
	233	} else if (debugifc_match_keyword(wptr,wlen,"decoder")) {
	234	return pvr2_hdw_cmd_decoder_reset(hdw);
681c7399 MI	235	} else if (debugifc_match_keyword(wptr,wlen,"worker")) {
681c7399 MI	236	return pvr2_hdw_untrip(hdw);
ad0992e9 MI	237	} else if (debugifc_match_keyword(wptr,wlen,"usbstats")) {
	238	pvr2_stream_get_stats(pvr2_hdw_get_video_stream(hdw),
	239	NULL, !0);
	240	return 0;
d855497e MI	241	}
d855497e MI	242	return -EINVAL;
d855497e MI	243	} else if (debugifc_match_keyword(wptr,wlen,"cpufw")) {
	244	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	245	if (!scnt) return -EINVAL;
	246	count -= scnt; buf += scnt;
	247	if (!wptr) return -EINVAL;
	248	if (debugifc_match_keyword(wptr,wlen,"fetch")) {
4db666cc MI	249	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	250	if (scnt && wptr) {
	251	count -= scnt; buf += scnt;
	252	if (debugifc_match_keyword(wptr,wlen,"prom")) {
	253	pvr2_hdw_cpufw_set_enabled(hdw,!0,!0);
	254	} else if (debugifc_match_keyword(wptr,wlen,
	255	"ram")) {
	256	pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
	257	} else {
	258	return -EINVAL;
	259	}
	260	}
	261	pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
d855497e MI	262	return 0;
d855497e MI	263	} else if (debugifc_match_keyword(wptr,wlen,"done")) {
4db666cc	264	pvr2_hdw_cpufw_set_enabled(hdw,0,0);
d855497e MI	265	return 0;
	266	} else {
	267	return -EINVAL;
	268	}
	269	} else if (debugifc_match_keyword(wptr,wlen,"gpio")) {
	270	int dir_fl = 0;
	271	int ret;
	272	u32 msk,val;
	273	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	274	if (!scnt) return -EINVAL;
	275	count -= scnt; buf += scnt;
	276	if (!wptr) return -EINVAL;
	277	if (debugifc_match_keyword(wptr,wlen,"dir")) {
	278	dir_fl = !0;
	279	} else if (!debugifc_match_keyword(wptr,wlen,"out")) {
	280	return -EINVAL;
	281	}
	282	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	283	if (!scnt) return -EINVAL;
	284	count -= scnt; buf += scnt;
	285	if (!wptr) return -EINVAL;
	286	ret = debugifc_parse_unsigned_number(wptr,wlen,&msk);
	287	if (ret) return ret;
	288	scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
	289	if (wptr) {
	290	ret = debugifc_parse_unsigned_number(wptr,wlen,&val);
	291	if (ret) return ret;
	292	} else {
	293	val = msk;
	294	msk = 0xffffffff;
	295	}
	296	if (dir_fl) {
	297	ret = pvr2_hdw_gpio_chg_dir(hdw,msk,val);
	298	} else {
	299	ret = pvr2_hdw_gpio_chg_out(hdw,msk,val);
	300	}
	301	return ret;
	302	}
	303	pvr2_trace(PVR2_TRACE_DEBUGIFC,
	304	"debugifc failed to recognize cmd: \"%.*s\"",wlen,wptr);
	305	return -EINVAL;
	306	}
	307
	308
	309	int pvr2_debugifc_docmd(struct pvr2_hdw hdw,const char buf,
	310	unsigned int count)
	311	{
	312	unsigned int bcnt = 0;
	313	int ret;
	314
	315	while (count) {
	316	for (bcnt = 0; bcnt < count; bcnt++) {
	317	if (buf[bcnt] == '\n') break;
	318	}
	319
	320	ret = pvr2_debugifc_do1cmd(hdw,buf,bcnt);
	321	if (ret < 0) return ret;
	322	if (bcnt < count) bcnt++;
	323	buf += bcnt;
	324	count -= bcnt;
	325	}
	326
	327	return 0;
	328	}
329
330
331	/*
332	Stuff for Emacs to see, in order to encourage consistent editing style:
333	* Local Variables: *
334	* mode: c *
335	* fill-column: 75 *
336	* tab-width: 8 *
337	* c-basic-offset: 8 *
338	* End: *
339	*/