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 
snd_ac97_proc_read_functions(struct snd_ac97 * ac97,struct snd_info_buffer * buffer)37 static 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 
71 static 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 
snd_ac97_proc_read_main(struct snd_ac97 * ac97,struct snd_info_buffer * buffer,int subidx)107 static 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 
snd_ac97_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)343 static 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 */
snd_ac97_proc_regs_write(struct snd_info_entry * entry,struct snd_info_buffer * buffer)378 static 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 
snd_ac97_proc_regs_read_main(struct snd_ac97 * ac97,struct snd_info_buffer * buffer,int subidx)395 static 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 
snd_ac97_proc_regs_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)405 static 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 
snd_ac97_proc_init(struct snd_ac97 * ac97)429 void 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 
snd_ac97_proc_done(struct snd_ac97 * ac97)462 void 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 
snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)470 void 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 
snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)486 void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
487 {
488 	snd_info_free_entry(bus->proc);
489 	bus->proc = NULL;
490 }
491