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cc17557e SS |
1 | /* |
2 | * ALSA SoC TWL4030 codec driver | |
3 | * | |
4 | * Author: Steve Sakoman, <steve@sakoman.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/pm.h> | |
27 | #include <linux/i2c.h> | |
28 | #include <linux/platform_device.h> | |
29 | #include <linux/i2c/twl4030.h> | |
30 | #include <sound/core.h> | |
31 | #include <sound/pcm.h> | |
32 | #include <sound/pcm_params.h> | |
33 | #include <sound/soc.h> | |
34 | #include <sound/soc-dapm.h> | |
35 | #include <sound/initval.h> | |
c10b82cf | 36 | #include <sound/tlv.h> |
cc17557e SS |
37 | |
38 | #include "twl4030.h" | |
39 | ||
40 | /* | |
41 | * twl4030 register cache & default register settings | |
42 | */ | |
43 | static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = { | |
44 | 0x00, /* this register not used */ | |
45 | 0x93, /* REG_CODEC_MODE (0x1) */ | |
46 | 0xc3, /* REG_OPTION (0x2) */ | |
47 | 0x00, /* REG_UNKNOWN (0x3) */ | |
48 | 0x00, /* REG_MICBIAS_CTL (0x4) */ | |
49 | 0x24, /* REG_ANAMICL (0x5) */ | |
50 | 0x04, /* REG_ANAMICR (0x6) */ | |
51 | 0x0a, /* REG_AVADC_CTL (0x7) */ | |
52 | 0x00, /* REG_ADCMICSEL (0x8) */ | |
53 | 0x00, /* REG_DIGMIXING (0x9) */ | |
54 | 0x0c, /* REG_ATXL1PGA (0xA) */ | |
55 | 0x0c, /* REG_ATXR1PGA (0xB) */ | |
56 | 0x00, /* REG_AVTXL2PGA (0xC) */ | |
57 | 0x00, /* REG_AVTXR2PGA (0xD) */ | |
58 | 0x01, /* REG_AUDIO_IF (0xE) */ | |
59 | 0x00, /* REG_VOICE_IF (0xF) */ | |
60 | 0x00, /* REG_ARXR1PGA (0x10) */ | |
61 | 0x00, /* REG_ARXL1PGA (0x11) */ | |
62 | 0x6c, /* REG_ARXR2PGA (0x12) */ | |
63 | 0x6c, /* REG_ARXL2PGA (0x13) */ | |
64 | 0x00, /* REG_VRXPGA (0x14) */ | |
65 | 0x00, /* REG_VSTPGA (0x15) */ | |
66 | 0x00, /* REG_VRX2ARXPGA (0x16) */ | |
67 | 0x0c, /* REG_AVDAC_CTL (0x17) */ | |
68 | 0x00, /* REG_ARX2VTXPGA (0x18) */ | |
69 | 0x00, /* REG_ARXL1_APGA_CTL (0x19) */ | |
70 | 0x00, /* REG_ARXR1_APGA_CTL (0x1A) */ | |
71 | 0x4b, /* REG_ARXL2_APGA_CTL (0x1B) */ | |
72 | 0x4b, /* REG_ARXR2_APGA_CTL (0x1C) */ | |
73 | 0x00, /* REG_ATX2ARXPGA (0x1D) */ | |
74 | 0x00, /* REG_BT_IF (0x1E) */ | |
75 | 0x00, /* REG_BTPGA (0x1F) */ | |
76 | 0x00, /* REG_BTSTPGA (0x20) */ | |
77 | 0x00, /* REG_EAR_CTL (0x21) */ | |
78 | 0x24, /* REG_HS_SEL (0x22) */ | |
79 | 0x0a, /* REG_HS_GAIN_SET (0x23) */ | |
80 | 0x00, /* REG_HS_POPN_SET (0x24) */ | |
81 | 0x00, /* REG_PREDL_CTL (0x25) */ | |
82 | 0x00, /* REG_PREDR_CTL (0x26) */ | |
83 | 0x00, /* REG_PRECKL_CTL (0x27) */ | |
84 | 0x00, /* REG_PRECKR_CTL (0x28) */ | |
85 | 0x00, /* REG_HFL_CTL (0x29) */ | |
86 | 0x00, /* REG_HFR_CTL (0x2A) */ | |
87 | 0x00, /* REG_ALC_CTL (0x2B) */ | |
88 | 0x00, /* REG_ALC_SET1 (0x2C) */ | |
89 | 0x00, /* REG_ALC_SET2 (0x2D) */ | |
90 | 0x00, /* REG_BOOST_CTL (0x2E) */ | |
f8d05bdb | 91 | 0x00, /* REG_SOFTVOL_CTL (0x2F) */ |
cc17557e SS |
92 | 0x00, /* REG_DTMF_FREQSEL (0x30) */ |
93 | 0x00, /* REG_DTMF_TONEXT1H (0x31) */ | |
94 | 0x00, /* REG_DTMF_TONEXT1L (0x32) */ | |
95 | 0x00, /* REG_DTMF_TONEXT2H (0x33) */ | |
96 | 0x00, /* REG_DTMF_TONEXT2L (0x34) */ | |
97 | 0x00, /* REG_DTMF_TONOFF (0x35) */ | |
98 | 0x00, /* REG_DTMF_WANONOFF (0x36) */ | |
99 | 0x00, /* REG_I2S_RX_SCRAMBLE_H (0x37) */ | |
100 | 0x00, /* REG_I2S_RX_SCRAMBLE_M (0x38) */ | |
101 | 0x00, /* REG_I2S_RX_SCRAMBLE_L (0x39) */ | |
102 | 0x16, /* REG_APLL_CTL (0x3A) */ | |
103 | 0x00, /* REG_DTMF_CTL (0x3B) */ | |
104 | 0x00, /* REG_DTMF_PGA_CTL2 (0x3C) */ | |
105 | 0x00, /* REG_DTMF_PGA_CTL1 (0x3D) */ | |
106 | 0x00, /* REG_MISC_SET_1 (0x3E) */ | |
107 | 0x00, /* REG_PCMBTMUX (0x3F) */ | |
108 | 0x00, /* not used (0x40) */ | |
109 | 0x00, /* not used (0x41) */ | |
110 | 0x00, /* not used (0x42) */ | |
111 | 0x00, /* REG_RX_PATH_SEL (0x43) */ | |
112 | 0x00, /* REG_VDL_APGA_CTL (0x44) */ | |
113 | 0x00, /* REG_VIBRA_CTL (0x45) */ | |
114 | 0x00, /* REG_VIBRA_SET (0x46) */ | |
115 | 0x00, /* REG_VIBRA_PWM_SET (0x47) */ | |
116 | 0x00, /* REG_ANAMIC_GAIN (0x48) */ | |
117 | 0x00, /* REG_MISC_SET_2 (0x49) */ | |
118 | }; | |
119 | ||
120 | /* | |
121 | * read twl4030 register cache | |
122 | */ | |
123 | static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec, | |
124 | unsigned int reg) | |
125 | { | |
126 | u8 *cache = codec->reg_cache; | |
127 | ||
128 | return cache[reg]; | |
129 | } | |
130 | ||
131 | /* | |
132 | * write twl4030 register cache | |
133 | */ | |
134 | static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec, | |
135 | u8 reg, u8 value) | |
136 | { | |
137 | u8 *cache = codec->reg_cache; | |
138 | ||
139 | if (reg >= TWL4030_CACHEREGNUM) | |
140 | return; | |
141 | cache[reg] = value; | |
142 | } | |
143 | ||
144 | /* | |
145 | * write to the twl4030 register space | |
146 | */ | |
147 | static int twl4030_write(struct snd_soc_codec *codec, | |
148 | unsigned int reg, unsigned int value) | |
149 | { | |
150 | twl4030_write_reg_cache(codec, reg, value); | |
151 | return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg); | |
152 | } | |
153 | ||
154 | static void twl4030_clear_codecpdz(struct snd_soc_codec *codec) | |
155 | { | |
156 | u8 mode; | |
157 | ||
158 | mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE); | |
159 | twl4030_write(codec, TWL4030_REG_CODEC_MODE, | |
160 | mode & ~TWL4030_CODECPDZ); | |
161 | ||
162 | /* REVISIT: this delay is present in TI sample drivers */ | |
163 | /* but there seems to be no TRM requirement for it */ | |
164 | udelay(10); | |
165 | } | |
166 | ||
167 | static void twl4030_set_codecpdz(struct snd_soc_codec *codec) | |
168 | { | |
169 | u8 mode; | |
170 | ||
171 | mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE); | |
172 | twl4030_write(codec, TWL4030_REG_CODEC_MODE, | |
173 | mode | TWL4030_CODECPDZ); | |
174 | ||
175 | /* REVISIT: this delay is present in TI sample drivers */ | |
176 | /* but there seems to be no TRM requirement for it */ | |
177 | udelay(10); | |
178 | } | |
179 | ||
180 | static void twl4030_init_chip(struct snd_soc_codec *codec) | |
181 | { | |
182 | int i; | |
183 | ||
184 | /* clear CODECPDZ prior to setting register defaults */ | |
185 | twl4030_clear_codecpdz(codec); | |
186 | ||
187 | /* set all audio section registers to reasonable defaults */ | |
188 | for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++) | |
189 | twl4030_write(codec, i, twl4030_reg[i]); | |
190 | ||
191 | } | |
192 | ||
c10b82cf PU |
193 | /* |
194 | * FGAIN volume control: | |
195 | * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB) | |
196 | */ | |
197 | static DECLARE_TLV_DB_SCALE(master_tlv, -6300, 100, 1); | |
198 | ||
cc17557e | 199 | static const struct snd_kcontrol_new twl4030_snd_controls[] = { |
c10b82cf | 200 | SOC_DOUBLE_R_TLV("Master Playback Volume", |
cc17557e | 201 | TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA, |
c10b82cf | 202 | 0, 0x3f, 0, master_tlv), |
cc17557e SS |
203 | SOC_DOUBLE_R("Capture Volume", |
204 | TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA, | |
6e5d9db2 | 205 | 0, 0x1f, 0), |
cc17557e SS |
206 | }; |
207 | ||
208 | /* add non dapm controls */ | |
209 | static int twl4030_add_controls(struct snd_soc_codec *codec) | |
210 | { | |
211 | int err, i; | |
212 | ||
213 | for (i = 0; i < ARRAY_SIZE(twl4030_snd_controls); i++) { | |
214 | err = snd_ctl_add(codec->card, | |
215 | snd_soc_cnew(&twl4030_snd_controls[i], | |
216 | codec, NULL)); | |
217 | if (err < 0) | |
218 | return err; | |
219 | } | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = { | |
225 | SND_SOC_DAPM_INPUT("INL"), | |
226 | SND_SOC_DAPM_INPUT("INR"), | |
227 | ||
228 | SND_SOC_DAPM_OUTPUT("OUTL"), | |
229 | SND_SOC_DAPM_OUTPUT("OUTR"), | |
230 | ||
231 | SND_SOC_DAPM_DAC("DACL", "Left Playback", SND_SOC_NOPM, 0, 0), | |
232 | SND_SOC_DAPM_DAC("DACR", "Right Playback", SND_SOC_NOPM, 0, 0), | |
233 | ||
234 | SND_SOC_DAPM_ADC("ADCL", "Left Capture", SND_SOC_NOPM, 0, 0), | |
235 | SND_SOC_DAPM_ADC("ADCR", "Right Capture", SND_SOC_NOPM, 0, 0), | |
236 | }; | |
237 | ||
238 | static const struct snd_soc_dapm_route intercon[] = { | |
239 | /* outputs */ | |
240 | {"OUTL", NULL, "DACL"}, | |
241 | {"OUTR", NULL, "DACR"}, | |
242 | ||
243 | /* inputs */ | |
244 | {"ADCL", NULL, "INL"}, | |
245 | {"ADCR", NULL, "INR"}, | |
246 | }; | |
247 | ||
248 | static int twl4030_add_widgets(struct snd_soc_codec *codec) | |
249 | { | |
250 | snd_soc_dapm_new_controls(codec, twl4030_dapm_widgets, | |
251 | ARRAY_SIZE(twl4030_dapm_widgets)); | |
252 | ||
253 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); | |
254 | ||
255 | snd_soc_dapm_new_widgets(codec); | |
256 | return 0; | |
257 | } | |
258 | ||
259 | static void twl4030_power_up(struct snd_soc_codec *codec) | |
260 | { | |
261 | u8 anamicl, regmisc1, byte, popn, hsgain; | |
262 | int i = 0; | |
263 | ||
264 | /* set CODECPDZ to turn on codec */ | |
265 | twl4030_set_codecpdz(codec); | |
266 | ||
267 | /* initiate offset cancellation */ | |
268 | anamicl = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL); | |
269 | twl4030_write(codec, TWL4030_REG_ANAMICL, | |
270 | anamicl | TWL4030_CNCL_OFFSET_START); | |
271 | ||
272 | /* wait for offset cancellation to complete */ | |
273 | do { | |
274 | /* this takes a little while, so don't slam i2c */ | |
275 | udelay(2000); | |
276 | twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, | |
277 | TWL4030_REG_ANAMICL); | |
278 | } while ((i++ < 100) && | |
279 | ((byte & TWL4030_CNCL_OFFSET_START) == | |
280 | TWL4030_CNCL_OFFSET_START)); | |
281 | ||
282 | /* anti-pop when changing analog gain */ | |
283 | regmisc1 = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1); | |
284 | twl4030_write(codec, TWL4030_REG_MISC_SET_1, | |
285 | regmisc1 | TWL4030_SMOOTH_ANAVOL_EN); | |
286 | ||
287 | /* toggle CODECPDZ as per TRM */ | |
288 | twl4030_clear_codecpdz(codec); | |
289 | twl4030_set_codecpdz(codec); | |
290 | ||
291 | /* program anti-pop with bias ramp delay */ | |
292 | popn = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); | |
293 | popn &= TWL4030_RAMP_DELAY; | |
294 | popn |= TWL4030_RAMP_DELAY_645MS; | |
295 | twl4030_write(codec, TWL4030_REG_HS_POPN_SET, popn); | |
296 | popn |= TWL4030_VMID_EN; | |
297 | twl4030_write(codec, TWL4030_REG_HS_POPN_SET, popn); | |
298 | ||
299 | /* enable output stage and gain setting */ | |
300 | hsgain = TWL4030_HSR_GAIN_0DB | TWL4030_HSL_GAIN_0DB; | |
301 | twl4030_write(codec, TWL4030_REG_HS_GAIN_SET, hsgain); | |
302 | ||
303 | /* enable anti-pop ramp */ | |
304 | popn |= TWL4030_RAMP_EN; | |
305 | twl4030_write(codec, TWL4030_REG_HS_POPN_SET, popn); | |
306 | } | |
307 | ||
308 | static void twl4030_power_down(struct snd_soc_codec *codec) | |
309 | { | |
310 | u8 popn, hsgain; | |
311 | ||
312 | /* disable anti-pop ramp */ | |
313 | popn = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); | |
314 | popn &= ~TWL4030_RAMP_EN; | |
315 | twl4030_write(codec, TWL4030_REG_HS_POPN_SET, popn); | |
316 | ||
317 | /* disable output stage and gain setting */ | |
318 | hsgain = TWL4030_HSR_GAIN_PWR_DOWN | TWL4030_HSL_GAIN_PWR_DOWN; | |
319 | twl4030_write(codec, TWL4030_REG_HS_GAIN_SET, hsgain); | |
320 | ||
321 | /* disable bias out */ | |
322 | popn &= ~TWL4030_VMID_EN; | |
323 | twl4030_write(codec, TWL4030_REG_HS_POPN_SET, popn); | |
324 | ||
325 | /* power down */ | |
326 | twl4030_clear_codecpdz(codec); | |
327 | } | |
328 | ||
329 | static int twl4030_set_bias_level(struct snd_soc_codec *codec, | |
330 | enum snd_soc_bias_level level) | |
331 | { | |
332 | switch (level) { | |
333 | case SND_SOC_BIAS_ON: | |
334 | twl4030_power_up(codec); | |
335 | break; | |
336 | case SND_SOC_BIAS_PREPARE: | |
337 | /* TODO: develop a twl4030_prepare function */ | |
338 | break; | |
339 | case SND_SOC_BIAS_STANDBY: | |
340 | /* TODO: develop a twl4030_standby function */ | |
341 | twl4030_power_down(codec); | |
342 | break; | |
343 | case SND_SOC_BIAS_OFF: | |
344 | twl4030_power_down(codec); | |
345 | break; | |
346 | } | |
347 | codec->bias_level = level; | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | static int twl4030_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
353 | struct snd_pcm_hw_params *params, |
354 | struct snd_soc_dai *dai) | |
cc17557e SS |
355 | { |
356 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
357 | struct snd_soc_device *socdev = rtd->socdev; | |
358 | struct snd_soc_codec *codec = socdev->codec; | |
359 | u8 mode, old_mode, format, old_format; | |
360 | ||
361 | ||
362 | /* bit rate */ | |
363 | old_mode = twl4030_read_reg_cache(codec, | |
364 | TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ; | |
365 | mode = old_mode & ~TWL4030_APLL_RATE; | |
366 | ||
367 | switch (params_rate(params)) { | |
368 | case 8000: | |
369 | mode |= TWL4030_APLL_RATE_8000; | |
370 | break; | |
371 | case 11025: | |
372 | mode |= TWL4030_APLL_RATE_11025; | |
373 | break; | |
374 | case 12000: | |
375 | mode |= TWL4030_APLL_RATE_12000; | |
376 | break; | |
377 | case 16000: | |
378 | mode |= TWL4030_APLL_RATE_16000; | |
379 | break; | |
380 | case 22050: | |
381 | mode |= TWL4030_APLL_RATE_22050; | |
382 | break; | |
383 | case 24000: | |
384 | mode |= TWL4030_APLL_RATE_24000; | |
385 | break; | |
386 | case 32000: | |
387 | mode |= TWL4030_APLL_RATE_32000; | |
388 | break; | |
389 | case 44100: | |
390 | mode |= TWL4030_APLL_RATE_44100; | |
391 | break; | |
392 | case 48000: | |
393 | mode |= TWL4030_APLL_RATE_48000; | |
394 | break; | |
395 | default: | |
396 | printk(KERN_ERR "TWL4030 hw params: unknown rate %d\n", | |
397 | params_rate(params)); | |
398 | return -EINVAL; | |
399 | } | |
400 | ||
401 | if (mode != old_mode) { | |
402 | /* change rate and set CODECPDZ */ | |
403 | twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode); | |
404 | twl4030_set_codecpdz(codec); | |
405 | } | |
406 | ||
407 | /* sample size */ | |
408 | old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); | |
409 | format = old_format; | |
410 | format &= ~TWL4030_DATA_WIDTH; | |
411 | switch (params_format(params)) { | |
412 | case SNDRV_PCM_FORMAT_S16_LE: | |
413 | format |= TWL4030_DATA_WIDTH_16S_16W; | |
414 | break; | |
415 | case SNDRV_PCM_FORMAT_S24_LE: | |
416 | format |= TWL4030_DATA_WIDTH_32S_24W; | |
417 | break; | |
418 | default: | |
419 | printk(KERN_ERR "TWL4030 hw params: unknown format %d\n", | |
420 | params_format(params)); | |
421 | return -EINVAL; | |
422 | } | |
423 | ||
424 | if (format != old_format) { | |
425 | ||
426 | /* clear CODECPDZ before changing format (codec requirement) */ | |
427 | twl4030_clear_codecpdz(codec); | |
428 | ||
429 | /* change format */ | |
430 | twl4030_write(codec, TWL4030_REG_AUDIO_IF, format); | |
431 | ||
432 | /* set CODECPDZ afterwards */ | |
433 | twl4030_set_codecpdz(codec); | |
434 | } | |
435 | return 0; | |
436 | } | |
437 | ||
438 | static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
439 | int clk_id, unsigned int freq, int dir) | |
440 | { | |
441 | struct snd_soc_codec *codec = codec_dai->codec; | |
442 | u8 infreq; | |
443 | ||
444 | switch (freq) { | |
445 | case 19200000: | |
446 | infreq = TWL4030_APLL_INFREQ_19200KHZ; | |
447 | break; | |
448 | case 26000000: | |
449 | infreq = TWL4030_APLL_INFREQ_26000KHZ; | |
450 | break; | |
451 | case 38400000: | |
452 | infreq = TWL4030_APLL_INFREQ_38400KHZ; | |
453 | break; | |
454 | default: | |
455 | printk(KERN_ERR "TWL4030 set sysclk: unknown rate %d\n", | |
456 | freq); | |
457 | return -EINVAL; | |
458 | } | |
459 | ||
460 | infreq |= TWL4030_APLL_EN; | |
461 | twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); | |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
466 | static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
467 | unsigned int fmt) | |
468 | { | |
469 | struct snd_soc_codec *codec = codec_dai->codec; | |
470 | u8 old_format, format; | |
471 | ||
472 | /* get format */ | |
473 | old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); | |
474 | format = old_format; | |
475 | ||
476 | /* set master/slave audio interface */ | |
477 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
478 | case SND_SOC_DAIFMT_CBM_CFM: | |
479 | format &= ~(TWL4030_AIF_SLAVE_EN); | |
e18c94d2 | 480 | format &= ~(TWL4030_CLK256FS_EN); |
cc17557e SS |
481 | break; |
482 | case SND_SOC_DAIFMT_CBS_CFS: | |
cc17557e | 483 | format |= TWL4030_AIF_SLAVE_EN; |
e18c94d2 | 484 | format |= TWL4030_CLK256FS_EN; |
cc17557e SS |
485 | break; |
486 | default: | |
487 | return -EINVAL; | |
488 | } | |
489 | ||
490 | /* interface format */ | |
491 | format &= ~TWL4030_AIF_FORMAT; | |
492 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
493 | case SND_SOC_DAIFMT_I2S: | |
494 | format |= TWL4030_AIF_FORMAT_CODEC; | |
495 | break; | |
496 | default: | |
497 | return -EINVAL; | |
498 | } | |
499 | ||
500 | if (format != old_format) { | |
501 | ||
502 | /* clear CODECPDZ before changing format (codec requirement) */ | |
503 | twl4030_clear_codecpdz(codec); | |
504 | ||
505 | /* change format */ | |
506 | twl4030_write(codec, TWL4030_REG_AUDIO_IF, format); | |
507 | ||
508 | /* set CODECPDZ afterwards */ | |
509 | twl4030_set_codecpdz(codec); | |
510 | } | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
bbba9444 | 515 | #define TWL4030_RATES (SNDRV_PCM_RATE_8000_48000) |
cc17557e SS |
516 | #define TWL4030_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE) |
517 | ||
518 | struct snd_soc_dai twl4030_dai = { | |
519 | .name = "twl4030", | |
520 | .playback = { | |
521 | .stream_name = "Playback", | |
522 | .channels_min = 2, | |
523 | .channels_max = 2, | |
524 | .rates = TWL4030_RATES, | |
525 | .formats = TWL4030_FORMATS,}, | |
526 | .capture = { | |
527 | .stream_name = "Capture", | |
528 | .channels_min = 2, | |
529 | .channels_max = 2, | |
530 | .rates = TWL4030_RATES, | |
531 | .formats = TWL4030_FORMATS,}, | |
532 | .ops = { | |
533 | .hw_params = twl4030_hw_params, | |
cc17557e SS |
534 | .set_sysclk = twl4030_set_dai_sysclk, |
535 | .set_fmt = twl4030_set_dai_fmt, | |
536 | } | |
537 | }; | |
538 | EXPORT_SYMBOL_GPL(twl4030_dai); | |
539 | ||
540 | static int twl4030_suspend(struct platform_device *pdev, pm_message_t state) | |
541 | { | |
542 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
543 | struct snd_soc_codec *codec = socdev->codec; | |
544 | ||
545 | twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | static int twl4030_resume(struct platform_device *pdev) | |
551 | { | |
552 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
553 | struct snd_soc_codec *codec = socdev->codec; | |
554 | ||
555 | twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
556 | twl4030_set_bias_level(codec, codec->suspend_bias_level); | |
557 | return 0; | |
558 | } | |
559 | ||
560 | /* | |
561 | * initialize the driver | |
562 | * register the mixer and dsp interfaces with the kernel | |
563 | */ | |
564 | ||
565 | static int twl4030_init(struct snd_soc_device *socdev) | |
566 | { | |
567 | struct snd_soc_codec *codec = socdev->codec; | |
568 | int ret = 0; | |
569 | ||
570 | printk(KERN_INFO "TWL4030 Audio Codec init \n"); | |
571 | ||
572 | codec->name = "twl4030"; | |
573 | codec->owner = THIS_MODULE; | |
574 | codec->read = twl4030_read_reg_cache; | |
575 | codec->write = twl4030_write; | |
576 | codec->set_bias_level = twl4030_set_bias_level; | |
577 | codec->dai = &twl4030_dai; | |
578 | codec->num_dai = 1; | |
579 | codec->reg_cache_size = sizeof(twl4030_reg); | |
580 | codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg), | |
581 | GFP_KERNEL); | |
582 | if (codec->reg_cache == NULL) | |
583 | return -ENOMEM; | |
584 | ||
585 | /* register pcms */ | |
586 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
587 | if (ret < 0) { | |
588 | printk(KERN_ERR "twl4030: failed to create pcms\n"); | |
589 | goto pcm_err; | |
590 | } | |
591 | ||
592 | twl4030_init_chip(codec); | |
593 | ||
594 | /* power on device */ | |
595 | twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
596 | ||
597 | twl4030_add_controls(codec); | |
598 | twl4030_add_widgets(codec); | |
599 | ||
600 | ret = snd_soc_register_card(socdev); | |
601 | if (ret < 0) { | |
602 | printk(KERN_ERR "twl4030: failed to register card\n"); | |
603 | goto card_err; | |
604 | } | |
605 | ||
606 | return ret; | |
607 | ||
608 | card_err: | |
609 | snd_soc_free_pcms(socdev); | |
610 | snd_soc_dapm_free(socdev); | |
611 | pcm_err: | |
612 | kfree(codec->reg_cache); | |
613 | return ret; | |
614 | } | |
615 | ||
616 | static struct snd_soc_device *twl4030_socdev; | |
617 | ||
618 | static int twl4030_probe(struct platform_device *pdev) | |
619 | { | |
620 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
621 | struct snd_soc_codec *codec; | |
622 | ||
623 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
624 | if (codec == NULL) | |
625 | return -ENOMEM; | |
626 | ||
627 | socdev->codec = codec; | |
628 | mutex_init(&codec->mutex); | |
629 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
630 | INIT_LIST_HEAD(&codec->dapm_paths); | |
631 | ||
632 | twl4030_socdev = socdev; | |
633 | twl4030_init(socdev); | |
634 | ||
635 | return 0; | |
636 | } | |
637 | ||
638 | static int twl4030_remove(struct platform_device *pdev) | |
639 | { | |
640 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
641 | struct snd_soc_codec *codec = socdev->codec; | |
642 | ||
643 | printk(KERN_INFO "TWL4030 Audio Codec remove\n"); | |
644 | kfree(codec); | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | struct snd_soc_codec_device soc_codec_dev_twl4030 = { | |
650 | .probe = twl4030_probe, | |
651 | .remove = twl4030_remove, | |
652 | .suspend = twl4030_suspend, | |
653 | .resume = twl4030_resume, | |
654 | }; | |
655 | EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030); | |
656 | ||
657 | MODULE_DESCRIPTION("ASoC TWL4030 codec driver"); | |
658 | MODULE_AUTHOR("Steve Sakoman"); | |
659 | MODULE_LICENSE("GPL"); |