1/*
2 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 *  Universal interface for Audio Codec '97
4 *
5 *  For more details look to AC '97 component specification revision 2.2
6 *  by Intel Corporation (http://developer.intel.com).
7 *
8 *
9 *   This program is free software; you can redistribute it and/or modify
10 *   it under the terms of the GNU General Public License as published by
11 *   the Free Software Foundation; either version 2 of the License, or
12 *   (at your option) any later version.
13 *
14 *   This program is distributed in the hope that it will be useful,
15 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *   GNU General Public License for more details.
18 *
19 *   You should have received a copy of the GNU General Public License
20 *   along with this program; if not, write to the Free Software
21 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22 *
23 */
24
25#include <linux/mutex.h>
26
27#include <sound/core.h>
28#include <sound/ac97_codec.h>
29#include <sound/asoundef.h>
30#include "ac97_local.h"
31#include "ac97_id.h"
32
33/*
34 * proc interface
35 */
36
37static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
38{
39	int header = 0, function;
40	unsigned short info, sense_info;
41	static const char *function_names[12] = {
42		"Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
43		"Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
44		"Aux In", "Mono Out"
45	};
46	static const char *locations[8] = {
47		"Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
48		"reserved", "reserved", "reserved", "NC/unused"
49	};
50
51	for (function = 0; function < 12; ++function) {
52		snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
53		info = snd_ac97_read(ac97, AC97_FUNC_INFO);
54		if (!(info & 0x0001))
55			continue;
56		if (!header) {
57			snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
58			header = 1;
59		}
60		sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
61		snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
62			    function_names[function],
63			    (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
64			    ((info & 0x0800) >> 11) * 5,
65			    info & 0x0400 ? 'X' : '-',
66			    (info & 0x03e0) >> 5,
67			    locations[sense_info >> 13]);
68	}
69}
70
71static const char *snd_ac97_stereo_enhancements[] =
72{
73  /*   0 */ "No 3D Stereo Enhancement",
74  /*   1 */ "Analog Devices Phat Stereo",
75  /*   2 */ "Creative Stereo Enhancement",
76  /*   3 */ "National Semi 3D Stereo Enhancement",
77  /*   4 */ "YAMAHA Ymersion",
78  /*   5 */ "BBE 3D Stereo Enhancement",
79  /*   6 */ "Crystal Semi 3D Stereo Enhancement",
80  /*   7 */ "Qsound QXpander",
81  /*   8 */ "Spatializer 3D Stereo Enhancement",
82  /*   9 */ "SRS 3D Stereo Enhancement",
83  /*  10 */ "Platform Tech 3D Stereo Enhancement",
84  /*  11 */ "AKM 3D Audio",
85  /*  12 */ "Aureal Stereo Enhancement",
86  /*  13 */ "Aztech 3D Enhancement",
87  /*  14 */ "Binaura 3D Audio Enhancement",
88  /*  15 */ "ESS Technology Stereo Enhancement",
89  /*  16 */ "Harman International VMAx",
90  /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
91  /*  18 */ "Philips Incredible Sound",
92  /*  19 */ "Texas Instruments 3D Stereo Enhancement",
93  /*  20 */ "VLSI Technology 3D Stereo Enhancement",
94  /*  21 */ "TriTech 3D Stereo Enhancement",
95  /*  22 */ "Realtek 3D Stereo Enhancement",
96  /*  23 */ "Samsung 3D Stereo Enhancement",
97  /*  24 */ "Wolfson Microelectronics 3D Enhancement",
98  /*  25 */ "Delta Integration 3D Enhancement",
99  /*  26 */ "SigmaTel 3D Enhancement",
100  /*  27 */ "IC Ensemble/KS Waves",
101  /*  28 */ "Rockwell 3D Stereo Enhancement",
102  /*  29 */ "Reserved 29",
103  /*  30 */ "Reserved 30",
104  /*  31 */ "Reserved 31"
105};
106
107static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
108{
109	char name[64];
110	unsigned short val, tmp, ext, mext;
111	static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
112	static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
113	static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
114	static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
115
116	snd_ac97_get_name(NULL, ac97->id, name, 0);
117	snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
118
119	if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
120		goto __modem;
121
122        snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
123	            ac97->subsystem_vendor);
124        snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
125                    ac97->subsystem_device);
126
127	snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
128
129	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
130		val = snd_ac97_read(ac97, AC97_INT_PAGING);
131		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
132				     AC97_PAGE_MASK, AC97_PAGE_1);
133		tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
134		snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
135		snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
136		snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
137			    snd_ac97_read(ac97, AC97_PCI_SVID));
138		snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
139			    snd_ac97_read(ac97, AC97_PCI_SID));
140		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
141				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
142	}
143
144	// val = snd_ac97_read(ac97, AC97_RESET);
145	val = ac97->caps;
146	snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
147	    	    val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
148		    val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
149		    val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
150		    val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
151		    val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
152		    val & AC97_BC_LOUDNESS ? " -loudness-" : "");
153	tmp = ac97->caps & AC97_BC_DAC_MASK;
154	snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
155		    tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
156		    tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
157		    tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
158		    tmp == AC97_BC_DAC_MASK ? "???" : "");
159	tmp = ac97->caps & AC97_BC_ADC_MASK;
160	snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
161		    tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
162		    tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
163		    tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
164		    tmp == AC97_BC_ADC_MASK ? "???" : "");
165	snd_iprintf(buffer, "3D enhancement   : %s\n",
166		snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
167	snd_iprintf(buffer, "\nCurrent setup\n");
168	val = snd_ac97_read(ac97, AC97_MIC);
169	snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
170	val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
171	snd_iprintf(buffer, "POP path         : %s 3D\n"
172		    "Sim. stereo      : %s\n"
173		    "3D enhancement   : %s\n"
174		    "Loudness         : %s\n"
175		    "Mono output      : %s\n"
176		    "Mic select       : %s\n"
177		    "ADC/DAC loopback : %s\n",
178		    val & 0x8000 ? "post" : "pre",
179		    val & 0x4000 ? "on" : "off",
180		    val & 0x2000 ? "on" : "off",
181		    val & 0x1000 ? "on" : "off",
182		    val & 0x0200 ? "Mic" : "MIX",
183		    val & 0x0100 ? "Mic2" : "Mic1",
184		    val & 0x0080 ? "on" : "off");
185	if (ac97->ext_id & AC97_EI_DRA)
186		snd_iprintf(buffer, "Double rate slots: %s\n",
187			    double_rate_slots[(val >> 10) & 3]);
188
189	ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
190	if (ext == 0)
191		goto __modem;
192
193	snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
194			(ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
195			(ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
196			ext & AC97_EI_AMAP ? " AMAP" : "",
197			ext & AC97_EI_LDAC ? " LDAC" : "",
198			ext & AC97_EI_SDAC ? " SDAC" : "",
199			ext & AC97_EI_CDAC ? " CDAC" : "",
200			(ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
201			ext & AC97_EI_VRM ? " VRM" : "",
202			ext & AC97_EI_SPDIF ? " SPDIF" : "",
203			ext & AC97_EI_DRA ? " DRA" : "",
204			ext & AC97_EI_VRA ? " VRA" : "");
205	val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
206	snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
207			val & AC97_EA_PRL ? " PRL" : "",
208			val & AC97_EA_PRK ? " PRK" : "",
209			val & AC97_EA_PRJ ? " PRJ" : "",
210			val & AC97_EA_PRI ? " PRI" : "",
211			val & AC97_EA_SPCV ? " SPCV" : "",
212			val & AC97_EA_MDAC ? " MADC" : "",
213			val & AC97_EA_LDAC ? " LDAC" : "",
214			val & AC97_EA_SDAC ? " SDAC" : "",
215			val & AC97_EA_CDAC ? " CDAC" : "",
216			ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
217			val & AC97_EA_VRM ? " VRM" : "",
218			val & AC97_EA_SPDIF ? " SPDIF" : "",
219			val & AC97_EA_DRA ? " DRA" : "",
220			val & AC97_EA_VRA ? " VRA" : "");
221	if (ext & AC97_EI_VRA) {	/* VRA */
222		val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
223		snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
224		if (ext & AC97_EI_SDAC) {
225			val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
226			snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
227		}
228		if (ext & AC97_EI_LDAC) {
229			val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
230			snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
231		}
232		val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
233		snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
234	}
235	if (ext & AC97_EI_VRM) {
236		val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
237		snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
238	}
239	if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
240	    (ac97->id == AC97_ID_YMF743)) {
241	        if (ac97->flags & AC97_CS_SPDIF)
242			val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
243		else if (ac97->id == AC97_ID_YMF743) {
244			val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
245			val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
246		} else
247			val = snd_ac97_read(ac97, AC97_SPDIF);
248
249		snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
250			val & AC97_SC_PRO ? " PRO" : " Consumer",
251			val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
252			val & AC97_SC_COPY ? "" : " Copyright",
253			val & AC97_SC_PRE ? " Preemph50/15" : "",
254			(val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
255			(val & AC97_SC_L) >> 11,
256			(ac97->flags & AC97_CS_SPDIF) ?
257			    spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
258			    spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
259			(ac97->flags & AC97_CS_SPDIF) ?
260			    (val & AC97_SC_DRS ? " Validity" : "") :
261			    (val & AC97_SC_DRS ? " DRS" : ""),
262			(ac97->flags & AC97_CS_SPDIF) ?
263			    (val & AC97_SC_V ? " Enabled" : "") :
264			    (val & AC97_SC_V ? " Validity" : ""));
265		/* ALC650 specific*/
266		if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
267		    (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
268			val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
269			if (val & AC97_ALC650_CLOCK_LOCK) {
270				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
271				snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
272					    val & AC97_ALC650_PRO ? " PRO" : " Consumer",
273					    val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
274					    val & AC97_ALC650_COPY ? "" : " Copyright",
275					    val & AC97_ALC650_PRE ? " Preemph50/15" : "",
276					    (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
277					    (val & AC97_ALC650_L) >> 15);
278				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
279				snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
280					    spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
281					    (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
282					    (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
283					    (val & AC97_ALC650_V ? " Validity?" : ""));
284			} else {
285				snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
286			}
287		}
288	}
289	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
290		val = snd_ac97_read(ac97, AC97_INT_PAGING);
291		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
292				     AC97_PAGE_MASK, AC97_PAGE_1);
293		snd_ac97_proc_read_functions(ac97, buffer);
294		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
295				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
296	}
297
298
299      __modem:
300	mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
301	if (mext == 0)
302		return;
303
304	snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
305			(mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
306			mext & AC97_MEI_CID2 ? " CID2" : "",
307			mext & AC97_MEI_CID1 ? " CID1" : "",
308			mext & AC97_MEI_HANDSET ? " HSET" : "",
309			mext & AC97_MEI_LINE2 ? " LIN2" : "",
310			mext & AC97_MEI_LINE1 ? " LIN1" : "");
311	val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
312	snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
313			val & AC97_MEA_GPIO ? " GPIO" : "",
314			val & AC97_MEA_MREF ? " MREF" : "",
315			val & AC97_MEA_ADC1 ? " ADC1" : "",
316			val & AC97_MEA_DAC1 ? " DAC1" : "",
317			val & AC97_MEA_ADC2 ? " ADC2" : "",
318			val & AC97_MEA_DAC2 ? " DAC2" : "",
319			val & AC97_MEA_HADC ? " HADC" : "",
320			val & AC97_MEA_HDAC ? " HDAC" : "",
321			val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
322			val & AC97_MEA_PRB ? " PRB(res)" : "",
323			val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
324			val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
325			val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
326			val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
327			val & AC97_MEA_PRG ? " PRG(HADC)" : "",
328			val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
329	if (mext & AC97_MEI_LINE1) {
330		val = snd_ac97_read(ac97, AC97_LINE1_RATE);
331		snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
332	}
333	if (mext & AC97_MEI_LINE2) {
334		val = snd_ac97_read(ac97, AC97_LINE2_RATE);
335		snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
336	}
337	if (mext & AC97_MEI_HANDSET) {
338		val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
339		snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
340	}
341}
342
343static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
344{
345	struct snd_ac97 *ac97 = entry->private_data;
346
347	mutex_lock(&ac97->page_mutex);
348	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
349		int idx;
350		for (idx = 0; idx < 3; idx++)
351			if (ac97->spec.ad18xx.id[idx]) {
352				/* select single codec */
353				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
354						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
355				snd_ac97_proc_read_main(ac97, buffer, idx);
356				snd_iprintf(buffer, "\n\n");
357			}
358		/* select all codecs */
359		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
360
361		snd_iprintf(buffer, "\nAD18XX configuration\n");
362		snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
363			ac97->spec.ad18xx.unchained[0],
364			ac97->spec.ad18xx.unchained[1],
365			ac97->spec.ad18xx.unchained[2]);
366		snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
367			ac97->spec.ad18xx.chained[0],
368			ac97->spec.ad18xx.chained[1],
369			ac97->spec.ad18xx.chained[2]);
370	} else {
371		snd_ac97_proc_read_main(ac97, buffer, 0);
372	}
373	mutex_unlock(&ac97->page_mutex);
374}
375
376#ifdef CONFIG_SND_DEBUG
377/* direct register write for debugging */
378static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
379{
380	struct snd_ac97 *ac97 = entry->private_data;
381	char line[64];
382	unsigned int reg, val;
383	mutex_lock(&ac97->page_mutex);
384	while (!snd_info_get_line(buffer, line, sizeof(line))) {
385		if (sscanf(line, "%x %x", &reg, &val) != 2)
386			continue;
387		/* register must be even */
388		if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
389			snd_ac97_write_cache(ac97, reg, val);
390	}
391	mutex_unlock(&ac97->page_mutex);
392}
393#endif
394
395static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
396{
397	int reg, val;
398
399	for (reg = 0; reg < 0x80; reg += 2) {
400		val = snd_ac97_read(ac97, reg);
401		snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
402	}
403}
404
405static void snd_ac97_proc_regs_read(struct snd_info_entry *entry,
406				    struct snd_info_buffer *buffer)
407{
408	struct snd_ac97 *ac97 = entry->private_data;
409
410	mutex_lock(&ac97->page_mutex);
411	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
412
413		int idx;
414		for (idx = 0; idx < 3; idx++)
415			if (ac97->spec.ad18xx.id[idx]) {
416				/* select single codec */
417				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
418						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
419				snd_ac97_proc_regs_read_main(ac97, buffer, idx);
420			}
421		/* select all codecs */
422		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
423	} else {
424		snd_ac97_proc_regs_read_main(ac97, buffer, 0);
425	}
426	mutex_unlock(&ac97->page_mutex);
427}
428
429void snd_ac97_proc_init(struct snd_ac97 * ac97)
430{
431	struct snd_info_entry *entry;
432	char name[32];
433	const char *prefix;
434
435	if (ac97->bus->proc == NULL)
436		return;
437	prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
438	sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
439	if ((entry = snd_info_create_card_entry(ac97->bus->card, name, ac97->bus->proc)) != NULL) {
440		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
441		if (snd_info_register(entry) < 0) {
442			snd_info_free_entry(entry);
443			entry = NULL;
444		}
445	}
446	ac97->proc = entry;
447	sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
448	if ((entry = snd_info_create_card_entry(ac97->bus->card, name, ac97->bus->proc)) != NULL) {
449		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
450#ifdef CONFIG_SND_DEBUG
451		entry->mode |= S_IWUSR;
452		entry->c.text.write = snd_ac97_proc_regs_write;
453#endif
454		if (snd_info_register(entry) < 0) {
455			snd_info_free_entry(entry);
456			entry = NULL;
457		}
458	}
459	ac97->proc_regs = entry;
460}
461
462void snd_ac97_proc_done(struct snd_ac97 * ac97)
463{
464	snd_info_free_entry(ac97->proc_regs);
465	ac97->proc_regs = NULL;
466	snd_info_free_entry(ac97->proc);
467	ac97->proc = NULL;
468}
469
470void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
471{
472	struct snd_info_entry *entry;
473	char name[32];
474
475	sprintf(name, "codec97#%d", bus->num);
476	if ((entry = snd_info_create_card_entry(bus->card, name, bus->card->proc_root)) != NULL) {
477		entry->mode = S_IFDIR | S_IRUGO | S_IXUGO;
478		if (snd_info_register(entry) < 0) {
479			snd_info_free_entry(entry);
480			entry = NULL;
481		}
482	}
483	bus->proc = entry;
484}
485
486void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
487{
488	snd_info_free_entry(bus->proc);
489	bus->proc = NULL;
490}
491