1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 *  Universal interface for Audio Codec '97
5 *
6 *  For more details look to AC '97 component specification revision 2.2
7 *  by Intel Corporation (http://developer.intel.com).
8 */
9
10#include <linux/mutex.h>
11
12#include <sound/core.h>
13#include <sound/ac97_codec.h>
14#include <sound/asoundef.h>
15#include "ac97_local.h"
16#include "ac97_id.h"
17
18/*
19 * proc interface
20 */
21
22static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
23{
24	int header = 0, function;
25	unsigned short info, sense_info;
26	static const char *function_names[12] = {
27		"Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
28		"Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
29		"Aux In", "Mono Out"
30	};
31	static const char *locations[8] = {
32		"Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
33		"reserved", "reserved", "reserved", "NC/unused"
34	};
35
36	for (function = 0; function < 12; ++function) {
37		snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
38		info = snd_ac97_read(ac97, AC97_FUNC_INFO);
39		if (!(info & 0x0001))
40			continue;
41		if (!header) {
42			snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
43			header = 1;
44		}
45		sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
46		snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
47			    function_names[function],
48			    (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
49			    ((info & 0x0800) >> 11) * 5,
50			    info & 0x0400 ? 'X' : '-',
51			    (info & 0x03e0) >> 5,
52			    locations[sense_info >> 13]);
53	}
54}
55
56static const char *snd_ac97_stereo_enhancements[] =
57{
58  /*   0 */ "No 3D Stereo Enhancement",
59  /*   1 */ "Analog Devices Phat Stereo",
60  /*   2 */ "Creative Stereo Enhancement",
61  /*   3 */ "National Semi 3D Stereo Enhancement",
62  /*   4 */ "YAMAHA Ymersion",
63  /*   5 */ "BBE 3D Stereo Enhancement",
64  /*   6 */ "Crystal Semi 3D Stereo Enhancement",
65  /*   7 */ "Qsound QXpander",
66  /*   8 */ "Spatializer 3D Stereo Enhancement",
67  /*   9 */ "SRS 3D Stereo Enhancement",
68  /*  10 */ "Platform Tech 3D Stereo Enhancement",
69  /*  11 */ "AKM 3D Audio",
70  /*  12 */ "Aureal Stereo Enhancement",
71  /*  13 */ "Aztech 3D Enhancement",
72  /*  14 */ "Binaura 3D Audio Enhancement",
73  /*  15 */ "ESS Technology Stereo Enhancement",
74  /*  16 */ "Harman International VMAx",
75  /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
76  /*  18 */ "Philips Incredible Sound",
77  /*  19 */ "Texas Instruments 3D Stereo Enhancement",
78  /*  20 */ "VLSI Technology 3D Stereo Enhancement",
79  /*  21 */ "TriTech 3D Stereo Enhancement",
80  /*  22 */ "Realtek 3D Stereo Enhancement",
81  /*  23 */ "Samsung 3D Stereo Enhancement",
82  /*  24 */ "Wolfson Microelectronics 3D Enhancement",
83  /*  25 */ "Delta Integration 3D Enhancement",
84  /*  26 */ "SigmaTel 3D Enhancement",
85  /*  27 */ "IC Ensemble/KS Waves",
86  /*  28 */ "Rockwell 3D Stereo Enhancement",
87  /*  29 */ "Reserved 29",
88  /*  30 */ "Reserved 30",
89  /*  31 */ "Reserved 31"
90};
91
92static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
93{
94	char name[64];
95	unsigned short val, tmp, ext, mext;
96	static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
97	static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
98	static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
99	static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
100
101	snd_ac97_get_name(NULL, ac97->id, name, 0);
102	snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
103
104	if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
105		goto __modem;
106
107        snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
108	            ac97->subsystem_vendor);
109        snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
110                    ac97->subsystem_device);
111
112	snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
113
114	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
115		val = snd_ac97_read(ac97, AC97_INT_PAGING);
116		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
117				     AC97_PAGE_MASK, AC97_PAGE_1);
118		tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
119		snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
120		snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
121		snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
122			    snd_ac97_read(ac97, AC97_PCI_SVID));
123		snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
124			    snd_ac97_read(ac97, AC97_PCI_SID));
125		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
126				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
127	}
128
129	// val = snd_ac97_read(ac97, AC97_RESET);
130	val = ac97->caps;
131	snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
132	    	    val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
133		    val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
134		    val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
135		    val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
136		    val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
137		    val & AC97_BC_LOUDNESS ? " -loudness-" : "");
138	tmp = ac97->caps & AC97_BC_DAC_MASK;
139	snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
140		    tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
141		    tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
142		    tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
143		    tmp == AC97_BC_DAC_MASK ? "???" : "");
144	tmp = ac97->caps & AC97_BC_ADC_MASK;
145	snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
146		    tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
147		    tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
148		    tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
149		    tmp == AC97_BC_ADC_MASK ? "???" : "");
150	snd_iprintf(buffer, "3D enhancement   : %s\n",
151		snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
152	snd_iprintf(buffer, "\nCurrent setup\n");
153	val = snd_ac97_read(ac97, AC97_MIC);
154	snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
155	val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
156	snd_iprintf(buffer, "POP path         : %s 3D\n"
157		    "Sim. stereo      : %s\n"
158		    "3D enhancement   : %s\n"
159		    "Loudness         : %s\n"
160		    "Mono output      : %s\n"
161		    "Mic select       : %s\n"
162		    "ADC/DAC loopback : %s\n",
163		    val & 0x8000 ? "post" : "pre",
164		    val & 0x4000 ? "on" : "off",
165		    val & 0x2000 ? "on" : "off",
166		    val & 0x1000 ? "on" : "off",
167		    val & 0x0200 ? "Mic" : "MIX",
168		    val & 0x0100 ? "Mic2" : "Mic1",
169		    val & 0x0080 ? "on" : "off");
170	if (ac97->ext_id & AC97_EI_DRA)
171		snd_iprintf(buffer, "Double rate slots: %s\n",
172			    double_rate_slots[(val >> 10) & 3]);
173
174	ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
175	if (ext == 0)
176		goto __modem;
177
178	snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
179			(ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
180			(ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
181			ext & AC97_EI_AMAP ? " AMAP" : "",
182			ext & AC97_EI_LDAC ? " LDAC" : "",
183			ext & AC97_EI_SDAC ? " SDAC" : "",
184			ext & AC97_EI_CDAC ? " CDAC" : "",
185			(ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
186			ext & AC97_EI_VRM ? " VRM" : "",
187			ext & AC97_EI_SPDIF ? " SPDIF" : "",
188			ext & AC97_EI_DRA ? " DRA" : "",
189			ext & AC97_EI_VRA ? " VRA" : "");
190	val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
191	snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
192			val & AC97_EA_PRL ? " PRL" : "",
193			val & AC97_EA_PRK ? " PRK" : "",
194			val & AC97_EA_PRJ ? " PRJ" : "",
195			val & AC97_EA_PRI ? " PRI" : "",
196			val & AC97_EA_SPCV ? " SPCV" : "",
197			val & AC97_EA_MDAC ? " MADC" : "",
198			val & AC97_EA_LDAC ? " LDAC" : "",
199			val & AC97_EA_SDAC ? " SDAC" : "",
200			val & AC97_EA_CDAC ? " CDAC" : "",
201			ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
202			val & AC97_EA_VRM ? " VRM" : "",
203			val & AC97_EA_SPDIF ? " SPDIF" : "",
204			val & AC97_EA_DRA ? " DRA" : "",
205			val & AC97_EA_VRA ? " VRA" : "");
206	if (ext & AC97_EI_VRA) {	/* VRA */
207		val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
208		snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
209		if (ext & AC97_EI_SDAC) {
210			val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
211			snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
212		}
213		if (ext & AC97_EI_LDAC) {
214			val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
215			snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
216		}
217		val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
218		snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
219	}
220	if (ext & AC97_EI_VRM) {
221		val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
222		snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
223	}
224	if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
225	    (ac97->id == AC97_ID_YMF743)) {
226	        if (ac97->flags & AC97_CS_SPDIF)
227			val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
228		else if (ac97->id == AC97_ID_YMF743) {
229			val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
230			val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
231		} else
232			val = snd_ac97_read(ac97, AC97_SPDIF);
233
234		snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
235			val & AC97_SC_PRO ? " PRO" : " Consumer",
236			val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
237			val & AC97_SC_COPY ? "" : " Copyright",
238			val & AC97_SC_PRE ? " Preemph50/15" : "",
239			(val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
240			(val & AC97_SC_L) >> 11,
241			(ac97->flags & AC97_CS_SPDIF) ?
242			    spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
243			    spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
244			(ac97->flags & AC97_CS_SPDIF) ?
245			    (val & AC97_SC_DRS ? " Validity" : "") :
246			    (val & AC97_SC_DRS ? " DRS" : ""),
247			(ac97->flags & AC97_CS_SPDIF) ?
248			    (val & AC97_SC_V ? " Enabled" : "") :
249			    (val & AC97_SC_V ? " Validity" : ""));
250		/* ALC650 specific*/
251		if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
252		    (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
253			val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
254			if (val & AC97_ALC650_CLOCK_LOCK) {
255				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
256				snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
257					    val & AC97_ALC650_PRO ? " PRO" : " Consumer",
258					    val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
259					    val & AC97_ALC650_COPY ? "" : " Copyright",
260					    val & AC97_ALC650_PRE ? " Preemph50/15" : "",
261					    (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
262					    (val & AC97_ALC650_L) >> 15);
263				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
264				snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
265					    spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
266					    (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
267					    (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
268					    (val & AC97_ALC650_V ? " Validity?" : ""));
269			} else {
270				snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
271			}
272		}
273	}
274	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
275		val = snd_ac97_read(ac97, AC97_INT_PAGING);
276		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
277				     AC97_PAGE_MASK, AC97_PAGE_1);
278		snd_ac97_proc_read_functions(ac97, buffer);
279		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
280				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
281	}
282
283
284      __modem:
285	mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
286	if (mext == 0)
287		return;
288
289	snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
290			(mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
291			mext & AC97_MEI_CID2 ? " CID2" : "",
292			mext & AC97_MEI_CID1 ? " CID1" : "",
293			mext & AC97_MEI_HANDSET ? " HSET" : "",
294			mext & AC97_MEI_LINE2 ? " LIN2" : "",
295			mext & AC97_MEI_LINE1 ? " LIN1" : "");
296	val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
297	snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
298			val & AC97_MEA_GPIO ? " GPIO" : "",
299			val & AC97_MEA_MREF ? " MREF" : "",
300			val & AC97_MEA_ADC1 ? " ADC1" : "",
301			val & AC97_MEA_DAC1 ? " DAC1" : "",
302			val & AC97_MEA_ADC2 ? " ADC2" : "",
303			val & AC97_MEA_DAC2 ? " DAC2" : "",
304			val & AC97_MEA_HADC ? " HADC" : "",
305			val & AC97_MEA_HDAC ? " HDAC" : "",
306			val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
307			val & AC97_MEA_PRB ? " PRB(res)" : "",
308			val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
309			val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
310			val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
311			val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
312			val & AC97_MEA_PRG ? " PRG(HADC)" : "",
313			val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
314	if (mext & AC97_MEI_LINE1) {
315		val = snd_ac97_read(ac97, AC97_LINE1_RATE);
316		snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
317	}
318	if (mext & AC97_MEI_LINE2) {
319		val = snd_ac97_read(ac97, AC97_LINE2_RATE);
320		snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
321	}
322	if (mext & AC97_MEI_HANDSET) {
323		val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
324		snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
325	}
326}
327
328static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
329{
330	struct snd_ac97 *ac97 = entry->private_data;
331
332	mutex_lock(&ac97->page_mutex);
333	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
334		int idx;
335		for (idx = 0; idx < 3; idx++)
336			if (ac97->spec.ad18xx.id[idx]) {
337				/* select single codec */
338				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
339						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
340				snd_ac97_proc_read_main(ac97, buffer, idx);
341				snd_iprintf(buffer, "\n\n");
342			}
343		/* select all codecs */
344		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
345
346		snd_iprintf(buffer, "\nAD18XX configuration\n");
347		snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
348			ac97->spec.ad18xx.unchained[0],
349			ac97->spec.ad18xx.unchained[1],
350			ac97->spec.ad18xx.unchained[2]);
351		snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
352			ac97->spec.ad18xx.chained[0],
353			ac97->spec.ad18xx.chained[1],
354			ac97->spec.ad18xx.chained[2]);
355	} else {
356		snd_ac97_proc_read_main(ac97, buffer, 0);
357	}
358	mutex_unlock(&ac97->page_mutex);
359}
360
361#ifdef CONFIG_SND_DEBUG
362/* direct register write for debugging */
363static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
364{
365	struct snd_ac97 *ac97 = entry->private_data;
366	char line[64];
367	unsigned int reg, val;
368	mutex_lock(&ac97->page_mutex);
369	while (!snd_info_get_line(buffer, line, sizeof(line))) {
370		if (sscanf(line, "%x %x", &reg, &val) != 2)
371			continue;
372		/* register must be even */
373		if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
374			snd_ac97_write_cache(ac97, reg, val);
375	}
376	mutex_unlock(&ac97->page_mutex);
377}
378#endif
379
380static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
381{
382	int reg, val;
383
384	for (reg = 0; reg < 0x80; reg += 2) {
385		val = snd_ac97_read(ac97, reg);
386		snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
387	}
388}
389
390static void snd_ac97_proc_regs_read(struct snd_info_entry *entry,
391				    struct snd_info_buffer *buffer)
392{
393	struct snd_ac97 *ac97 = entry->private_data;
394
395	mutex_lock(&ac97->page_mutex);
396	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
397
398		int idx;
399		for (idx = 0; idx < 3; idx++)
400			if (ac97->spec.ad18xx.id[idx]) {
401				/* select single codec */
402				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
403						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
404				snd_ac97_proc_regs_read_main(ac97, buffer, idx);
405			}
406		/* select all codecs */
407		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
408	} else {
409		snd_ac97_proc_regs_read_main(ac97, buffer, 0);
410	}
411	mutex_unlock(&ac97->page_mutex);
412}
413
414void snd_ac97_proc_init(struct snd_ac97 * ac97)
415{
416	struct snd_info_entry *entry;
417	char name[32];
418	const char *prefix;
419
420	if (ac97->bus->proc == NULL)
421		return;
422	prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
423	sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
424	entry = snd_info_create_card_entry(ac97->bus->card, name,
425					   ac97->bus->proc);
426	if (entry)
427		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
428	ac97->proc = entry;
429	sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
430	entry = snd_info_create_card_entry(ac97->bus->card, name,
431					   ac97->bus->proc);
432	if (entry) {
433		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
434#ifdef CONFIG_SND_DEBUG
435		entry->mode |= 0200;
436		entry->c.text.write = snd_ac97_proc_regs_write;
437#endif
438	}
439	ac97->proc_regs = entry;
440}
441
442void snd_ac97_proc_done(struct snd_ac97 * ac97)
443{
444	snd_info_free_entry(ac97->proc_regs);
445	ac97->proc_regs = NULL;
446	snd_info_free_entry(ac97->proc);
447	ac97->proc = NULL;
448}
449
450void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
451{
452	struct snd_info_entry *entry;
453	char name[32];
454
455	sprintf(name, "codec97#%d", bus->num);
456	entry = snd_info_create_card_entry(bus->card, name,
457					   bus->card->proc_root);
458	if (entry)
459		entry->mode = S_IFDIR | 0555;
460	bus->proc = entry;
461}
462
463void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
464{
465	snd_info_free_entry(bus->proc);
466	bus->proc = NULL;
467}
468