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c1f27190 AK |
1 | /* |
2 | * ALSA SoC TLV320AIC23 codec driver | |
3 | * | |
4 | * Author: Arun KS, <arunks@mistralsolutions.com> | |
5 | * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., | |
6 | * | |
7 | * Based on sound/soc/codecs/wm8731.c by Richard Purdie | |
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 version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * Notes: | |
14 | * The AIC23 is a driver for a low power stereo audio | |
15 | * codec tlv320aic23 | |
16 | * | |
17 | * The machine layer should disable unsupported inputs/outputs by | |
18 | * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/moduleparam.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/pm.h> | |
26 | #include <linux/i2c.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <sound/core.h> | |
29 | #include <sound/pcm.h> | |
30 | #include <sound/pcm_params.h> | |
31 | #include <sound/soc.h> | |
32 | #include <sound/soc-dapm.h> | |
33 | #include <sound/tlv.h> | |
34 | #include <sound/initval.h> | |
35 | ||
36 | #include "tlv320aic23.h" | |
37 | ||
c1f27190 AK |
38 | #define AIC23_VERSION "0.1" |
39 | ||
40 | struct tlv320aic23_srate_reg_info { | |
41 | u32 sample_rate; | |
42 | u8 control; /* SR3, SR2, SR1, SR0 and BOSR */ | |
43 | u8 divider; /* if 0 CLKIN = MCLK, if 1 CLKIN = MCLK/2 */ | |
44 | }; | |
45 | ||
46 | /* | |
47 | * AIC23 register cache | |
48 | */ | |
49 | static const u16 tlv320aic23_reg[] = { | |
50 | 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */ | |
51 | 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */ | |
52 | 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */ | |
53 | 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */ | |
54 | }; | |
55 | ||
56 | /* | |
57 | * read tlv320aic23 register cache | |
58 | */ | |
59 | static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec | |
60 | *codec, unsigned int reg) | |
61 | { | |
62 | u16 *cache = codec->reg_cache; | |
63 | if (reg >= ARRAY_SIZE(tlv320aic23_reg)) | |
64 | return -1; | |
65 | return cache[reg]; | |
66 | } | |
67 | ||
68 | /* | |
69 | * write tlv320aic23 register cache | |
70 | */ | |
71 | static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec, | |
72 | u8 reg, u16 value) | |
73 | { | |
74 | u16 *cache = codec->reg_cache; | |
75 | if (reg >= ARRAY_SIZE(tlv320aic23_reg)) | |
76 | return; | |
77 | cache[reg] = value; | |
78 | } | |
79 | ||
80 | /* | |
81 | * write to the tlv320aic23 register space | |
82 | */ | |
83 | static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg, | |
84 | unsigned int value) | |
85 | { | |
86 | ||
4aa02396 | 87 | u8 data[2]; |
c1f27190 AK |
88 | |
89 | /* TLV320AIC23 has 7 bit address and 9 bits of data | |
90 | * so we need to switch one data bit into reg and rest | |
91 | * of data into val | |
92 | */ | |
93 | ||
94 | if ((reg < 0 || reg > 9) && (reg != 15)) { | |
95 | printk(KERN_WARNING "%s Invalid register R%d\n", __func__, reg); | |
96 | return -1; | |
97 | } | |
98 | ||
4aa02396 AK |
99 | data[0] = (reg << 1) | (value >> 8 & 0x01); |
100 | data[1] = value & 0xff; | |
c1f27190 AK |
101 | |
102 | tlv320aic23_write_reg_cache(codec, reg, value); | |
103 | ||
4aa02396 | 104 | if (codec->hw_write(codec->control_data, data, 2) == 2) |
c1f27190 AK |
105 | return 0; |
106 | ||
107 | printk(KERN_ERR "%s cannot write %03x to register R%d\n", __func__, | |
108 | value, reg); | |
109 | ||
110 | return -EIO; | |
111 | } | |
112 | ||
113 | static const char *rec_src_text[] = { "Line", "Mic" }; | |
114 | static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
c1f27190 AK |
115 | |
116 | static const struct soc_enum rec_src_enum = | |
117 | SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); | |
118 | ||
119 | static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = | |
120 | SOC_DAPM_ENUM("Input Select", rec_src_enum); | |
121 | ||
122 | static const struct soc_enum tlv320aic23_rec_src = | |
123 | SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); | |
124 | static const struct soc_enum tlv320aic23_deemph = | |
125 | SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text); | |
c1f27190 AK |
126 | |
127 | static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); | |
128 | static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); | |
df91ddf1 AK |
129 | static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); |
130 | ||
131 | static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, | |
132 | struct snd_ctl_elem_value *ucontrol) | |
133 | { | |
134 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
135 | u16 val, reg; | |
136 | ||
137 | val = (ucontrol->value.integer.value[0] & 0x07); | |
138 | ||
139 | /* linear conversion to userspace | |
140 | * 000 = -6db | |
141 | * 001 = -9db | |
142 | * 010 = -12db | |
143 | * 011 = -18db (Min) | |
144 | * 100 = 0db (Max) | |
145 | */ | |
146 | val = (val >= 4) ? 4 : (3 - val); | |
147 | ||
148 | reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0); | |
149 | tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); | |
150 | ||
151 | return 0; | |
152 | } | |
153 | ||
154 | static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, | |
155 | struct snd_ctl_elem_value *ucontrol) | |
156 | { | |
157 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
158 | u16 val; | |
159 | ||
160 | val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0); | |
161 | val = val >> 6; | |
162 | val = (val >= 4) ? 4 : (3 - val); | |
163 | ucontrol->value.integer.value[0] = val; | |
164 | return 0; | |
165 | ||
166 | } | |
167 | ||
168 | #define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ | |
169 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
170 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ | |
171 | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ | |
172 | .tlv.p = (tlv_array), \ | |
173 | .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\ | |
174 | .put = snd_soc_tlv320aic23_put_volsw, \ | |
175 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } | |
c1f27190 AK |
176 | |
177 | static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { | |
178 | SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, | |
179 | TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv), | |
180 | SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1), | |
181 | SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL, | |
182 | TLV320AIC23_RINVOL, 7, 1, 0), | |
183 | SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL, | |
184 | TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), | |
185 | SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), | |
186 | SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), | |
df91ddf1 AK |
187 | SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG, |
188 | 6, 4, 0, sidetone_vol_tlv), | |
c1f27190 AK |
189 | SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), |
190 | }; | |
191 | ||
192 | /* add non dapm controls */ | |
193 | static int tlv320aic23_add_controls(struct snd_soc_codec *codec) | |
194 | { | |
195 | ||
196 | int err, i; | |
197 | ||
198 | for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) { | |
199 | err = snd_ctl_add(codec->card, | |
200 | snd_soc_cnew(&tlv320aic23_snd_controls[i], | |
201 | codec, NULL)); | |
202 | if (err < 0) | |
203 | return err; | |
204 | } | |
205 | ||
206 | return 0; | |
207 | ||
208 | } | |
209 | ||
210 | /* PGA Mixer controls for Line and Mic switch */ | |
211 | static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = { | |
212 | SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0), | |
213 | SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0), | |
214 | SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0), | |
215 | }; | |
216 | ||
217 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { | |
218 | SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1), | |
219 | SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1), | |
220 | SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, | |
221 | &tlv320aic23_rec_src_mux_controls), | |
222 | SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1, | |
223 | &tlv320aic23_output_mixer_controls[0], | |
224 | ARRAY_SIZE(tlv320aic23_output_mixer_controls)), | |
225 | SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0), | |
226 | SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0), | |
227 | ||
228 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
229 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
230 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
231 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
232 | ||
233 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
234 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
235 | ||
236 | SND_SOC_DAPM_INPUT("MICIN"), | |
237 | }; | |
238 | ||
239 | static const struct snd_soc_dapm_route intercon[] = { | |
240 | /* Output Mixer */ | |
241 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
242 | {"Output Mixer", "Playback Switch", "DAC"}, | |
243 | {"Output Mixer", "Mic Sidetone Switch", "Mic Input"}, | |
244 | ||
245 | /* Outputs */ | |
246 | {"RHPOUT", NULL, "Output Mixer"}, | |
247 | {"LHPOUT", NULL, "Output Mixer"}, | |
248 | {"LOUT", NULL, "Output Mixer"}, | |
249 | {"ROUT", NULL, "Output Mixer"}, | |
250 | ||
251 | /* Inputs */ | |
252 | {"Line Input", "NULL", "LLINEIN"}, | |
253 | {"Line Input", "NULL", "RLINEIN"}, | |
254 | ||
255 | {"Mic Input", "NULL", "MICIN"}, | |
256 | ||
257 | /* input mux */ | |
258 | {"Capture Source", "Line", "Line Input"}, | |
259 | {"Capture Source", "Mic", "Mic Input"}, | |
260 | {"ADC", NULL, "Capture Source"}, | |
261 | ||
262 | }; | |
263 | ||
264 | /* tlv320aic23 related */ | |
265 | static const struct tlv320aic23_srate_reg_info srate_reg_info[] = { | |
266 | {4000, 0x06, 1}, /* 4000 */ | |
267 | {8000, 0x06, 0}, /* 8000 */ | |
268 | {16000, 0x0C, 1}, /* 16000 */ | |
269 | {22050, 0x11, 1}, /* 22050 */ | |
270 | {24000, 0x00, 1}, /* 24000 */ | |
271 | {32000, 0x0C, 0}, /* 32000 */ | |
272 | {44100, 0x11, 0}, /* 44100 */ | |
273 | {48000, 0x00, 0}, /* 48000 */ | |
274 | {88200, 0x1F, 0}, /* 88200 */ | |
275 | {96000, 0x0E, 0}, /* 96000 */ | |
276 | }; | |
277 | ||
278 | static int tlv320aic23_add_widgets(struct snd_soc_codec *codec) | |
279 | { | |
280 | snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets, | |
281 | ARRAY_SIZE(tlv320aic23_dapm_widgets)); | |
282 | ||
283 | /* set up audio path interconnects */ | |
284 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); | |
285 | ||
286 | snd_soc_dapm_new_widgets(codec); | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, | |
291 | struct snd_pcm_hw_params *params) | |
292 | { | |
293 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
294 | struct snd_soc_device *socdev = rtd->socdev; | |
295 | struct snd_soc_codec *codec = socdev->codec; | |
296 | u16 iface_reg, data; | |
297 | u8 count = 0; | |
298 | ||
299 | iface_reg = | |
300 | tlv320aic23_read_reg_cache(codec, | |
301 | TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); | |
302 | ||
303 | /* Search for the right sample rate */ | |
304 | /* Verify what happens if the rate is not supported | |
305 | * now it goes to 96Khz */ | |
306 | while ((srate_reg_info[count].sample_rate != params_rate(params)) && | |
307 | (count < ARRAY_SIZE(srate_reg_info))) { | |
308 | count++; | |
309 | } | |
310 | ||
311 | data = (srate_reg_info[count].divider << TLV320AIC23_CLKIN_SHIFT) | | |
312 | (srate_reg_info[count]. control << TLV320AIC23_BOSR_SHIFT) | | |
313 | TLV320AIC23_USB_CLK_ON; | |
314 | ||
315 | tlv320aic23_write(codec, TLV320AIC23_SRATE, data); | |
316 | ||
317 | switch (params_format(params)) { | |
318 | case SNDRV_PCM_FORMAT_S16_LE: | |
319 | break; | |
320 | case SNDRV_PCM_FORMAT_S20_3LE: | |
321 | iface_reg |= (0x01 << 2); | |
322 | break; | |
323 | case SNDRV_PCM_FORMAT_S24_LE: | |
324 | iface_reg |= (0x02 << 2); | |
325 | break; | |
326 | case SNDRV_PCM_FORMAT_S32_LE: | |
327 | iface_reg |= (0x03 << 2); | |
328 | break; | |
329 | } | |
330 | tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream) | |
336 | { | |
337 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
338 | struct snd_soc_device *socdev = rtd->socdev; | |
339 | struct snd_soc_codec *codec = socdev->codec; | |
340 | ||
341 | /* set active */ | |
342 | tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001); | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static void tlv320aic23_shutdown(struct snd_pcm_substream *substream) | |
348 | { | |
349 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
350 | struct snd_soc_device *socdev = rtd->socdev; | |
351 | struct snd_soc_codec *codec = socdev->codec; | |
352 | ||
353 | /* deactivate */ | |
354 | if (!codec->active) { | |
355 | udelay(50); | |
356 | tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); | |
357 | } | |
358 | } | |
359 | ||
360 | static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) | |
361 | { | |
362 | struct snd_soc_codec *codec = dai->codec; | |
363 | u16 reg; | |
364 | ||
365 | reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT); | |
366 | if (mute) | |
367 | reg |= TLV320AIC23_DACM_MUTE; | |
368 | ||
369 | else | |
370 | reg &= ~TLV320AIC23_DACM_MUTE; | |
371 | ||
372 | tlv320aic23_write(codec, TLV320AIC23_DIGT, reg); | |
373 | ||
374 | return 0; | |
375 | } | |
376 | ||
377 | static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
378 | unsigned int fmt) | |
379 | { | |
380 | struct snd_soc_codec *codec = codec_dai->codec; | |
381 | u16 iface_reg; | |
382 | ||
383 | iface_reg = | |
384 | tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03); | |
385 | ||
386 | /* set master/slave audio interface */ | |
387 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
388 | case SND_SOC_DAIFMT_CBM_CFM: | |
389 | iface_reg |= TLV320AIC23_MS_MASTER; | |
390 | break; | |
391 | case SND_SOC_DAIFMT_CBS_CFS: | |
392 | break; | |
393 | default: | |
394 | return -EINVAL; | |
395 | ||
396 | } | |
397 | ||
398 | /* interface format */ | |
399 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
400 | case SND_SOC_DAIFMT_I2S: | |
401 | iface_reg |= TLV320AIC23_FOR_I2S; | |
402 | break; | |
403 | case SND_SOC_DAIFMT_DSP_A: | |
404 | iface_reg |= TLV320AIC23_FOR_DSP; | |
405 | break; | |
406 | case SND_SOC_DAIFMT_RIGHT_J: | |
407 | break; | |
408 | case SND_SOC_DAIFMT_LEFT_J: | |
409 | iface_reg |= TLV320AIC23_FOR_LJUST; | |
410 | break; | |
411 | default: | |
412 | return -EINVAL; | |
413 | ||
414 | } | |
415 | ||
416 | tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
422 | int clk_id, unsigned int freq, int dir) | |
423 | { | |
424 | struct snd_soc_codec *codec = codec_dai->codec; | |
425 | ||
426 | switch (freq) { | |
427 | case 12000000: | |
428 | return 0; | |
429 | } | |
430 | return -EINVAL; | |
431 | } | |
432 | ||
433 | static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, | |
434 | enum snd_soc_bias_level level) | |
435 | { | |
436 | u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f; | |
437 | ||
438 | switch (level) { | |
439 | case SND_SOC_BIAS_ON: | |
440 | /* vref/mid, osc on, dac unmute */ | |
441 | tlv320aic23_write(codec, TLV320AIC23_PWR, reg); | |
442 | break; | |
443 | case SND_SOC_BIAS_PREPARE: | |
444 | break; | |
445 | case SND_SOC_BIAS_STANDBY: | |
446 | /* everything off except vref/vmid, */ | |
447 | tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040); | |
448 | break; | |
449 | case SND_SOC_BIAS_OFF: | |
450 | /* everything off, dac mute, inactive */ | |
451 | tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); | |
452 | tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff); | |
453 | break; | |
454 | } | |
455 | codec->bias_level = level; | |
456 | return 0; | |
457 | } | |
458 | ||
459 | #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 | |
460 | #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
461 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) | |
462 | ||
463 | struct snd_soc_dai tlv320aic23_dai = { | |
464 | .name = "tlv320aic23", | |
465 | .playback = { | |
466 | .stream_name = "Playback", | |
467 | .channels_min = 2, | |
468 | .channels_max = 2, | |
469 | .rates = AIC23_RATES, | |
470 | .formats = AIC23_FORMATS,}, | |
471 | .capture = { | |
472 | .stream_name = "Capture", | |
473 | .channels_min = 2, | |
474 | .channels_max = 2, | |
475 | .rates = AIC23_RATES, | |
476 | .formats = AIC23_FORMATS,}, | |
477 | .ops = { | |
478 | .prepare = tlv320aic23_pcm_prepare, | |
479 | .hw_params = tlv320aic23_hw_params, | |
480 | .shutdown = tlv320aic23_shutdown, | |
481 | }, | |
482 | .dai_ops = { | |
483 | .digital_mute = tlv320aic23_mute, | |
484 | .set_fmt = tlv320aic23_set_dai_fmt, | |
485 | .set_sysclk = tlv320aic23_set_dai_sysclk, | |
486 | } | |
487 | }; | |
488 | EXPORT_SYMBOL_GPL(tlv320aic23_dai); | |
489 | ||
490 | static int tlv320aic23_suspend(struct platform_device *pdev, | |
491 | pm_message_t state) | |
492 | { | |
493 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
494 | struct snd_soc_codec *codec = socdev->codec; | |
495 | ||
496 | tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); | |
497 | tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static int tlv320aic23_resume(struct platform_device *pdev) | |
503 | { | |
504 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
505 | struct snd_soc_codec *codec = socdev->codec; | |
506 | int i; | |
507 | u16 reg; | |
508 | ||
509 | /* Sync reg_cache with the hardware */ | |
510 | for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) { | |
511 | u16 val = tlv320aic23_read_reg_cache(codec, reg); | |
512 | tlv320aic23_write(codec, reg, val); | |
513 | } | |
514 | ||
515 | tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
516 | tlv320aic23_set_bias_level(codec, codec->suspend_bias_level); | |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | /* | |
522 | * initialise the AIC23 driver | |
523 | * register the mixer and dsp interfaces with the kernel | |
524 | */ | |
525 | static int tlv320aic23_init(struct snd_soc_device *socdev) | |
526 | { | |
527 | struct snd_soc_codec *codec = socdev->codec; | |
528 | int ret = 0; | |
529 | u16 reg; | |
530 | ||
531 | codec->name = "tlv320aic23"; | |
532 | codec->owner = THIS_MODULE; | |
533 | codec->read = tlv320aic23_read_reg_cache; | |
534 | codec->write = tlv320aic23_write; | |
535 | codec->set_bias_level = tlv320aic23_set_bias_level; | |
536 | codec->dai = &tlv320aic23_dai; | |
537 | codec->num_dai = 1; | |
538 | codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg); | |
539 | codec->reg_cache = | |
540 | kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL); | |
541 | if (codec->reg_cache == NULL) | |
542 | return -ENOMEM; | |
543 | ||
544 | /* Reset codec */ | |
545 | tlv320aic23_write(codec, TLV320AIC23_RESET, 0); | |
546 | ||
547 | /* register pcms */ | |
548 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
549 | if (ret < 0) { | |
550 | printk(KERN_ERR "tlv320aic23: failed to create pcms\n"); | |
551 | goto pcm_err; | |
552 | } | |
553 | ||
554 | /* power on device */ | |
555 | tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
556 | ||
557 | tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); | |
558 | ||
559 | /* Unmute input */ | |
560 | reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL); | |
561 | tlv320aic23_write(codec, TLV320AIC23_LINVOL, | |
562 | (reg & (~TLV320AIC23_LIM_MUTED)) | | |
563 | (TLV320AIC23_LRS_ENABLED)); | |
564 | ||
565 | reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL); | |
566 | tlv320aic23_write(codec, TLV320AIC23_RINVOL, | |
567 | (reg & (~TLV320AIC23_LIM_MUTED)) | | |
568 | TLV320AIC23_LRS_ENABLED); | |
569 | ||
570 | reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG); | |
571 | tlv320aic23_write(codec, TLV320AIC23_ANLG, | |
572 | (reg) & (~TLV320AIC23_BYPASS_ON) & | |
573 | (~TLV320AIC23_MICM_MUTED)); | |
574 | ||
575 | /* Default output volume */ | |
576 | tlv320aic23_write(codec, TLV320AIC23_LCHNVOL, | |
577 | TLV320AIC23_DEFAULT_OUT_VOL & | |
578 | TLV320AIC23_OUT_VOL_MASK); | |
579 | tlv320aic23_write(codec, TLV320AIC23_RCHNVOL, | |
580 | TLV320AIC23_DEFAULT_OUT_VOL & | |
581 | TLV320AIC23_OUT_VOL_MASK); | |
582 | ||
583 | tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1); | |
584 | ||
585 | tlv320aic23_add_controls(codec); | |
586 | tlv320aic23_add_widgets(codec); | |
587 | ret = snd_soc_register_card(socdev); | |
588 | if (ret < 0) { | |
589 | printk(KERN_ERR "tlv320aic23: failed to register card\n"); | |
590 | goto card_err; | |
591 | } | |
592 | ||
593 | return ret; | |
594 | ||
595 | card_err: | |
596 | snd_soc_free_pcms(socdev); | |
597 | snd_soc_dapm_free(socdev); | |
598 | pcm_err: | |
599 | kfree(codec->reg_cache); | |
600 | return ret; | |
601 | } | |
602 | static struct snd_soc_device *tlv320aic23_socdev; | |
603 | ||
604 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
605 | /* | |
606 | * If the i2c layer weren't so broken, we could pass this kind of data | |
607 | * around | |
608 | */ | |
609 | static int tlv320aic23_codec_probe(struct i2c_client *i2c, | |
610 | const struct i2c_device_id *i2c_id) | |
611 | { | |
612 | struct snd_soc_device *socdev = tlv320aic23_socdev; | |
613 | struct snd_soc_codec *codec = socdev->codec; | |
614 | int ret; | |
615 | ||
616 | if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
617 | return -EINVAL; | |
618 | ||
619 | i2c_set_clientdata(i2c, codec); | |
620 | codec->control_data = i2c; | |
621 | ||
622 | ret = tlv320aic23_init(socdev); | |
623 | if (ret < 0) { | |
624 | printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n"); | |
625 | goto err; | |
626 | } | |
627 | return ret; | |
628 | ||
629 | err: | |
630 | kfree(codec); | |
631 | kfree(i2c); | |
632 | return ret; | |
633 | } | |
634 | static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c) | |
635 | { | |
636 | put_device(&i2c->dev); | |
637 | return 0; | |
638 | } | |
639 | ||
640 | static const struct i2c_device_id tlv320aic23_id[] = { | |
641 | {"tlv320aic23", 0}, | |
642 | {} | |
643 | }; | |
644 | ||
645 | MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); | |
646 | ||
647 | static struct i2c_driver tlv320aic23_i2c_driver = { | |
648 | .driver = { | |
649 | .name = "tlv320aic23", | |
650 | }, | |
651 | .probe = tlv320aic23_codec_probe, | |
652 | .remove = __exit_p(tlv320aic23_i2c_remove), | |
653 | .id_table = tlv320aic23_id, | |
654 | }; | |
655 | ||
656 | #endif | |
657 | ||
658 | static int tlv320aic23_probe(struct platform_device *pdev) | |
659 | { | |
660 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
661 | struct snd_soc_codec *codec; | |
662 | int ret = 0; | |
663 | ||
664 | printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION); | |
665 | ||
666 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
667 | if (codec == NULL) | |
668 | return -ENOMEM; | |
669 | ||
670 | socdev->codec = codec; | |
671 | mutex_init(&codec->mutex); | |
672 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
673 | INIT_LIST_HEAD(&codec->dapm_paths); | |
674 | ||
675 | tlv320aic23_socdev = socdev; | |
676 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
4aa02396 | 677 | codec->hw_write = (hw_write_t) i2c_master_send; |
c1f27190 AK |
678 | codec->hw_read = NULL; |
679 | ret = i2c_add_driver(&tlv320aic23_i2c_driver); | |
680 | if (ret != 0) | |
681 | printk(KERN_ERR "can't add i2c driver"); | |
682 | #endif | |
683 | return ret; | |
684 | } | |
685 | ||
686 | static int tlv320aic23_remove(struct platform_device *pdev) | |
687 | { | |
688 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
689 | struct snd_soc_codec *codec = socdev->codec; | |
690 | ||
691 | if (codec->control_data) | |
692 | tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
693 | ||
694 | snd_soc_free_pcms(socdev); | |
695 | snd_soc_dapm_free(socdev); | |
696 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
697 | i2c_del_driver(&tlv320aic23_i2c_driver); | |
698 | #endif | |
699 | kfree(codec->reg_cache); | |
700 | kfree(codec); | |
701 | ||
702 | return 0; | |
703 | } | |
704 | struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = { | |
705 | .probe = tlv320aic23_probe, | |
706 | .remove = tlv320aic23_remove, | |
707 | .suspend = tlv320aic23_suspend, | |
708 | .resume = tlv320aic23_resume, | |
709 | }; | |
710 | EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23); | |
711 | ||
712 | MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); | |
713 | MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); | |
714 | MODULE_LICENSE("GPL"); |