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 
snd_ac97_proc_read_functions(struct snd_ac97 * ac97,struct snd_info_buffer * buffer)22 static 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 
56 static 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 
snd_ac97_proc_read_main(struct snd_ac97 * ac97,struct snd_info_buffer * buffer,int subidx)92 static 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 
snd_ac97_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)328 static 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 */
snd_ac97_proc_regs_write(struct snd_info_entry * entry,struct snd_info_buffer * buffer)363 static 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 
snd_ac97_proc_regs_read_main(struct snd_ac97 * ac97,struct snd_info_buffer * buffer,int subidx)380 static 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 
snd_ac97_proc_regs_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)390 static 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 
snd_ac97_proc_init(struct snd_ac97 * ac97)414 void 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 
snd_ac97_proc_done(struct snd_ac97 * ac97)442 void 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 
snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)450 void 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 
snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)463 void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
464 {
465 	snd_info_free_entry(bus->proc);
466 	bus->proc = NULL;
467 }
468