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72ed5a8c | 1 | /* |
2 | * cs42l51.c | |
3 | * | |
4 | * ASoC Driver for Cirrus Logic CS42L51 codecs | |
5 | * | |
6 | * Copyright (c) 2010 Arnaud Patard <apatard@mandriva.com> | |
7 | * | |
8 | * Based on cs4270.c - Copyright (c) Freescale Semiconductor | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
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 | * For now: | |
20 | * - Only I2C is support. Not SPI | |
21 | * - master mode *NOT* supported | |
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
72ed5a8c | 25 | #include <linux/slab.h> |
26 | #include <sound/core.h> | |
27 | #include <sound/soc.h> | |
72ed5a8c | 28 | #include <sound/tlv.h> |
29 | #include <sound/initval.h> | |
30 | #include <sound/pcm_params.h> | |
31 | #include <sound/pcm.h> | |
32 | #include <linux/i2c.h> | |
33 | ||
34 | #include "cs42l51.h" | |
35 | ||
36 | enum master_slave_mode { | |
37 | MODE_SLAVE, | |
38 | MODE_SLAVE_AUTO, | |
39 | MODE_MASTER, | |
40 | }; | |
41 | ||
42 | struct cs42l51_private { | |
f0fba2ad | 43 | enum snd_soc_control_type control_type; |
72ed5a8c | 44 | unsigned int mclk; |
45 | unsigned int audio_mode; /* The mode (I2S or left-justified) */ | |
46 | enum master_slave_mode func; | |
72ed5a8c | 47 | }; |
48 | ||
72ed5a8c | 49 | #define CS42L51_FORMATS ( \ |
50 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \ | |
51 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \ | |
52 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \ | |
53 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE) | |
54 | ||
55 | static int cs42l51_fill_cache(struct snd_soc_codec *codec) | |
56 | { | |
57 | u8 *cache = codec->reg_cache + 1; | |
6d4f7097 | 58 | struct i2c_client *i2c_client = to_i2c_client(codec->dev); |
72ed5a8c | 59 | s32 length; |
60 | ||
61 | length = i2c_smbus_read_i2c_block_data(i2c_client, | |
62 | CS42L51_FIRSTREG | 0x80, CS42L51_NUMREGS, cache); | |
63 | if (length != CS42L51_NUMREGS) { | |
64 | dev_err(&i2c_client->dev, | |
65 | "I2C read failure, addr=0x%x (ret=%d vs %d)\n", | |
66 | i2c_client->addr, length, CS42L51_NUMREGS); | |
67 | return -EIO; | |
68 | } | |
69 | ||
70 | return 0; | |
71 | } | |
72 | ||
72ed5a8c | 73 | static int cs42l51_get_chan_mix(struct snd_kcontrol *kcontrol, |
74 | struct snd_ctl_elem_value *ucontrol) | |
75 | { | |
76 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
77 | unsigned long value = snd_soc_read(codec, CS42L51_PCM_MIXER)&3; | |
78 | ||
79 | switch (value) { | |
80 | default: | |
81 | case 0: | |
82 | ucontrol->value.integer.value[0] = 0; | |
83 | break; | |
84 | /* same value : (L+R)/2 and (R+L)/2 */ | |
85 | case 1: | |
86 | case 2: | |
87 | ucontrol->value.integer.value[0] = 1; | |
88 | break; | |
89 | case 3: | |
90 | ucontrol->value.integer.value[0] = 2; | |
91 | break; | |
92 | } | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | #define CHAN_MIX_NORMAL 0x00 | |
98 | #define CHAN_MIX_BOTH 0x55 | |
99 | #define CHAN_MIX_SWAP 0xFF | |
100 | ||
101 | static int cs42l51_set_chan_mix(struct snd_kcontrol *kcontrol, | |
102 | struct snd_ctl_elem_value *ucontrol) | |
103 | { | |
104 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
105 | unsigned char val; | |
106 | ||
107 | switch (ucontrol->value.integer.value[0]) { | |
108 | default: | |
109 | case 0: | |
110 | val = CHAN_MIX_NORMAL; | |
111 | break; | |
112 | case 1: | |
113 | val = CHAN_MIX_BOTH; | |
114 | break; | |
115 | case 2: | |
116 | val = CHAN_MIX_SWAP; | |
117 | break; | |
118 | } | |
119 | ||
120 | snd_soc_write(codec, CS42L51_PCM_MIXER, val); | |
121 | ||
122 | return 1; | |
123 | } | |
124 | ||
125 | static const DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -5150, 50, 0); | |
126 | static const DECLARE_TLV_DB_SCALE(tone_tlv, -1050, 150, 0); | |
127 | /* This is a lie. after -102 db, it stays at -102 */ | |
128 | /* maybe a range would be better */ | |
129 | static const DECLARE_TLV_DB_SCALE(aout_tlv, -11550, 50, 0); | |
130 | ||
131 | static const DECLARE_TLV_DB_SCALE(boost_tlv, 1600, 1600, 0); | |
132 | static const char *chan_mix[] = { | |
133 | "L R", | |
134 | "L+R", | |
135 | "R L", | |
136 | }; | |
137 | ||
138 | static const struct soc_enum cs42l51_chan_mix = | |
139 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(chan_mix), chan_mix); | |
140 | ||
141 | static const struct snd_kcontrol_new cs42l51_snd_controls[] = { | |
142 | SOC_DOUBLE_R_SX_TLV("PCM Playback Volume", | |
143 | CS42L51_PCMA_VOL, CS42L51_PCMB_VOL, | |
1d99f243 | 144 | 6, 0x19, 0x7F, adc_pcm_tlv), |
72ed5a8c | 145 | SOC_DOUBLE_R("PCM Playback Switch", |
146 | CS42L51_PCMA_VOL, CS42L51_PCMB_VOL, 7, 1, 1), | |
147 | SOC_DOUBLE_R_SX_TLV("Analog Playback Volume", | |
148 | CS42L51_AOUTA_VOL, CS42L51_AOUTB_VOL, | |
1d99f243 | 149 | 0, 0x34, 0xE4, aout_tlv), |
72ed5a8c | 150 | SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume", |
151 | CS42L51_ADCA_VOL, CS42L51_ADCB_VOL, | |
1d99f243 | 152 | 6, 0x19, 0x7F, adc_pcm_tlv), |
72ed5a8c | 153 | SOC_DOUBLE_R("ADC Mixer Switch", |
154 | CS42L51_ADCA_VOL, CS42L51_ADCB_VOL, 7, 1, 1), | |
155 | SOC_SINGLE("Playback Deemphasis Switch", CS42L51_DAC_CTL, 3, 1, 0), | |
156 | SOC_SINGLE("Auto-Mute Switch", CS42L51_DAC_CTL, 2, 1, 0), | |
157 | SOC_SINGLE("Soft Ramp Switch", CS42L51_DAC_CTL, 1, 1, 0), | |
158 | SOC_SINGLE("Zero Cross Switch", CS42L51_DAC_CTL, 0, 0, 0), | |
159 | SOC_DOUBLE_TLV("Mic Boost Volume", | |
160 | CS42L51_MIC_CTL, 0, 1, 1, 0, boost_tlv), | |
161 | SOC_SINGLE_TLV("Bass Volume", CS42L51_TONE_CTL, 0, 0xf, 1, tone_tlv), | |
162 | SOC_SINGLE_TLV("Treble Volume", CS42L51_TONE_CTL, 4, 0xf, 1, tone_tlv), | |
163 | SOC_ENUM_EXT("PCM channel mixer", | |
164 | cs42l51_chan_mix, | |
165 | cs42l51_get_chan_mix, cs42l51_set_chan_mix), | |
166 | }; | |
167 | ||
168 | /* | |
169 | * to power down, one must: | |
170 | * 1.) Enable the PDN bit | |
171 | * 2.) enable power-down for the select channels | |
172 | * 3.) disable the PDN bit. | |
173 | */ | |
174 | static int cs42l51_pdn_event(struct snd_soc_dapm_widget *w, | |
175 | struct snd_kcontrol *kcontrol, int event) | |
176 | { | |
72ed5a8c | 177 | switch (event) { |
178 | case SND_SOC_DAPM_PRE_PMD: | |
e94de1e8 AL |
179 | snd_soc_update_bits(w->codec, CS42L51_POWER_CTL1, |
180 | CS42L51_POWER_CTL1_PDN, | |
181 | CS42L51_POWER_CTL1_PDN); | |
72ed5a8c | 182 | break; |
183 | default: | |
184 | case SND_SOC_DAPM_POST_PMD: | |
e94de1e8 AL |
185 | snd_soc_update_bits(w->codec, CS42L51_POWER_CTL1, |
186 | CS42L51_POWER_CTL1_PDN, 0); | |
72ed5a8c | 187 | break; |
188 | } | |
72ed5a8c | 189 | |
190 | return 0; | |
191 | } | |
192 | ||
193 | static const char *cs42l51_dac_names[] = {"Direct PCM", | |
194 | "DSP PCM", "ADC"}; | |
195 | static const struct soc_enum cs42l51_dac_mux_enum = | |
196 | SOC_ENUM_SINGLE(CS42L51_DAC_CTL, 6, 3, cs42l51_dac_names); | |
197 | static const struct snd_kcontrol_new cs42l51_dac_mux_controls = | |
198 | SOC_DAPM_ENUM("Route", cs42l51_dac_mux_enum); | |
199 | ||
200 | static const char *cs42l51_adcl_names[] = {"AIN1 Left", "AIN2 Left", | |
201 | "MIC Left", "MIC+preamp Left"}; | |
202 | static const struct soc_enum cs42l51_adcl_mux_enum = | |
203 | SOC_ENUM_SINGLE(CS42L51_ADC_INPUT, 4, 4, cs42l51_adcl_names); | |
204 | static const struct snd_kcontrol_new cs42l51_adcl_mux_controls = | |
205 | SOC_DAPM_ENUM("Route", cs42l51_adcl_mux_enum); | |
206 | ||
207 | static const char *cs42l51_adcr_names[] = {"AIN1 Right", "AIN2 Right", | |
208 | "MIC Right", "MIC+preamp Right"}; | |
209 | static const struct soc_enum cs42l51_adcr_mux_enum = | |
210 | SOC_ENUM_SINGLE(CS42L51_ADC_INPUT, 6, 4, cs42l51_adcr_names); | |
211 | static const struct snd_kcontrol_new cs42l51_adcr_mux_controls = | |
212 | SOC_DAPM_ENUM("Route", cs42l51_adcr_mux_enum); | |
213 | ||
214 | static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { | |
215 | SND_SOC_DAPM_MICBIAS("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1), | |
216 | SND_SOC_DAPM_PGA_E("Left PGA", CS42L51_POWER_CTL1, 3, 1, NULL, 0, | |
217 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
218 | SND_SOC_DAPM_PGA_E("Right PGA", CS42L51_POWER_CTL1, 4, 1, NULL, 0, | |
219 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
220 | SND_SOC_DAPM_ADC_E("Left ADC", "Left HiFi Capture", | |
221 | CS42L51_POWER_CTL1, 1, 1, | |
222 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
223 | SND_SOC_DAPM_ADC_E("Right ADC", "Right HiFi Capture", | |
224 | CS42L51_POWER_CTL1, 2, 1, | |
225 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
226 | SND_SOC_DAPM_DAC_E("Left DAC", "Left HiFi Playback", | |
227 | CS42L51_POWER_CTL1, 5, 1, | |
228 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
229 | SND_SOC_DAPM_DAC_E("Right DAC", "Right HiFi Playback", | |
230 | CS42L51_POWER_CTL1, 6, 1, | |
231 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), | |
232 | ||
233 | /* analog/mic */ | |
234 | SND_SOC_DAPM_INPUT("AIN1L"), | |
235 | SND_SOC_DAPM_INPUT("AIN1R"), | |
236 | SND_SOC_DAPM_INPUT("AIN2L"), | |
237 | SND_SOC_DAPM_INPUT("AIN2R"), | |
238 | SND_SOC_DAPM_INPUT("MICL"), | |
239 | SND_SOC_DAPM_INPUT("MICR"), | |
240 | ||
241 | SND_SOC_DAPM_MIXER("Mic Preamp Left", | |
242 | CS42L51_MIC_POWER_CTL, 2, 1, NULL, 0), | |
243 | SND_SOC_DAPM_MIXER("Mic Preamp Right", | |
244 | CS42L51_MIC_POWER_CTL, 3, 1, NULL, 0), | |
245 | ||
246 | /* HP */ | |
247 | SND_SOC_DAPM_OUTPUT("HPL"), | |
248 | SND_SOC_DAPM_OUTPUT("HPR"), | |
249 | ||
250 | /* mux */ | |
251 | SND_SOC_DAPM_MUX("DAC Mux", SND_SOC_NOPM, 0, 0, | |
252 | &cs42l51_dac_mux_controls), | |
253 | SND_SOC_DAPM_MUX("PGA-ADC Mux Left", SND_SOC_NOPM, 0, 0, | |
254 | &cs42l51_adcl_mux_controls), | |
255 | SND_SOC_DAPM_MUX("PGA-ADC Mux Right", SND_SOC_NOPM, 0, 0, | |
256 | &cs42l51_adcr_mux_controls), | |
257 | }; | |
258 | ||
259 | static const struct snd_soc_dapm_route cs42l51_routes[] = { | |
260 | {"HPL", NULL, "Left DAC"}, | |
261 | {"HPR", NULL, "Right DAC"}, | |
262 | ||
263 | {"Left ADC", NULL, "Left PGA"}, | |
264 | {"Right ADC", NULL, "Right PGA"}, | |
265 | ||
266 | {"Mic Preamp Left", NULL, "MICL"}, | |
267 | {"Mic Preamp Right", NULL, "MICR"}, | |
268 | ||
269 | {"PGA-ADC Mux Left", "AIN1 Left", "AIN1L" }, | |
270 | {"PGA-ADC Mux Left", "AIN2 Left", "AIN2L" }, | |
271 | {"PGA-ADC Mux Left", "MIC Left", "MICL" }, | |
272 | {"PGA-ADC Mux Left", "MIC+preamp Left", "Mic Preamp Left" }, | |
273 | {"PGA-ADC Mux Right", "AIN1 Right", "AIN1R" }, | |
274 | {"PGA-ADC Mux Right", "AIN2 Right", "AIN2R" }, | |
275 | {"PGA-ADC Mux Right", "MIC Right", "MICR" }, | |
276 | {"PGA-ADC Mux Right", "MIC+preamp Right", "Mic Preamp Right" }, | |
277 | ||
278 | {"Left PGA", NULL, "PGA-ADC Mux Left"}, | |
279 | {"Right PGA", NULL, "PGA-ADC Mux Right"}, | |
280 | }; | |
281 | ||
282 | static int cs42l51_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
283 | unsigned int format) | |
284 | { | |
285 | struct snd_soc_codec *codec = codec_dai->codec; | |
286 | struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); | |
72ed5a8c | 287 | |
288 | switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { | |
289 | case SND_SOC_DAIFMT_I2S: | |
290 | case SND_SOC_DAIFMT_LEFT_J: | |
291 | case SND_SOC_DAIFMT_RIGHT_J: | |
292 | cs42l51->audio_mode = format & SND_SOC_DAIFMT_FORMAT_MASK; | |
293 | break; | |
294 | default: | |
295 | dev_err(codec->dev, "invalid DAI format\n"); | |
ac60155f | 296 | return -EINVAL; |
72ed5a8c | 297 | } |
298 | ||
299 | switch (format & SND_SOC_DAIFMT_MASTER_MASK) { | |
300 | case SND_SOC_DAIFMT_CBM_CFM: | |
301 | cs42l51->func = MODE_MASTER; | |
302 | break; | |
303 | case SND_SOC_DAIFMT_CBS_CFS: | |
304 | cs42l51->func = MODE_SLAVE_AUTO; | |
305 | break; | |
306 | default: | |
ac60155f AL |
307 | dev_err(codec->dev, "Unknown master/slave configuration\n"); |
308 | return -EINVAL; | |
72ed5a8c | 309 | } |
310 | ||
ac60155f | 311 | return 0; |
72ed5a8c | 312 | } |
313 | ||
314 | struct cs42l51_ratios { | |
315 | unsigned int ratio; | |
316 | unsigned char speed_mode; | |
317 | unsigned char mclk; | |
318 | }; | |
319 | ||
320 | static struct cs42l51_ratios slave_ratios[] = { | |
321 | { 512, CS42L51_QSM_MODE, 0 }, { 768, CS42L51_QSM_MODE, 0 }, | |
322 | { 1024, CS42L51_QSM_MODE, 0 }, { 1536, CS42L51_QSM_MODE, 0 }, | |
323 | { 2048, CS42L51_QSM_MODE, 0 }, { 3072, CS42L51_QSM_MODE, 0 }, | |
324 | { 256, CS42L51_HSM_MODE, 0 }, { 384, CS42L51_HSM_MODE, 0 }, | |
325 | { 512, CS42L51_HSM_MODE, 0 }, { 768, CS42L51_HSM_MODE, 0 }, | |
326 | { 1024, CS42L51_HSM_MODE, 0 }, { 1536, CS42L51_HSM_MODE, 0 }, | |
327 | { 128, CS42L51_SSM_MODE, 0 }, { 192, CS42L51_SSM_MODE, 0 }, | |
328 | { 256, CS42L51_SSM_MODE, 0 }, { 384, CS42L51_SSM_MODE, 0 }, | |
329 | { 512, CS42L51_SSM_MODE, 0 }, { 768, CS42L51_SSM_MODE, 0 }, | |
330 | { 128, CS42L51_DSM_MODE, 0 }, { 192, CS42L51_DSM_MODE, 0 }, | |
331 | { 256, CS42L51_DSM_MODE, 0 }, { 384, CS42L51_DSM_MODE, 0 }, | |
332 | }; | |
333 | ||
334 | static struct cs42l51_ratios slave_auto_ratios[] = { | |
335 | { 1024, CS42L51_QSM_MODE, 0 }, { 1536, CS42L51_QSM_MODE, 0 }, | |
336 | { 2048, CS42L51_QSM_MODE, 1 }, { 3072, CS42L51_QSM_MODE, 1 }, | |
337 | { 512, CS42L51_HSM_MODE, 0 }, { 768, CS42L51_HSM_MODE, 0 }, | |
338 | { 1024, CS42L51_HSM_MODE, 1 }, { 1536, CS42L51_HSM_MODE, 1 }, | |
339 | { 256, CS42L51_SSM_MODE, 0 }, { 384, CS42L51_SSM_MODE, 0 }, | |
340 | { 512, CS42L51_SSM_MODE, 1 }, { 768, CS42L51_SSM_MODE, 1 }, | |
341 | { 128, CS42L51_DSM_MODE, 0 }, { 192, CS42L51_DSM_MODE, 0 }, | |
342 | { 256, CS42L51_DSM_MODE, 1 }, { 384, CS42L51_DSM_MODE, 1 }, | |
343 | }; | |
344 | ||
345 | static int cs42l51_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
346 | int clk_id, unsigned int freq, int dir) | |
347 | { | |
348 | struct snd_soc_codec *codec = codec_dai->codec; | |
349 | struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); | |
72ed5a8c | 350 | |
351 | cs42l51->mclk = freq; | |
72ed5a8c | 352 | return 0; |
353 | } | |
354 | ||
355 | static int cs42l51_hw_params(struct snd_pcm_substream *substream, | |
356 | struct snd_pcm_hw_params *params, | |
357 | struct snd_soc_dai *dai) | |
358 | { | |
e6968a17 | 359 | struct snd_soc_codec *codec = dai->codec; |
72ed5a8c | 360 | struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); |
361 | int ret; | |
362 | unsigned int i; | |
363 | unsigned int rate; | |
364 | unsigned int ratio; | |
365 | struct cs42l51_ratios *ratios = NULL; | |
366 | int nr_ratios = 0; | |
367 | int intf_ctl, power_ctl, fmt; | |
368 | ||
369 | switch (cs42l51->func) { | |
370 | case MODE_MASTER: | |
371 | return -EINVAL; | |
372 | case MODE_SLAVE: | |
373 | ratios = slave_ratios; | |
374 | nr_ratios = ARRAY_SIZE(slave_ratios); | |
375 | break; | |
376 | case MODE_SLAVE_AUTO: | |
377 | ratios = slave_auto_ratios; | |
378 | nr_ratios = ARRAY_SIZE(slave_auto_ratios); | |
379 | break; | |
380 | } | |
381 | ||
382 | /* Figure out which MCLK/LRCK ratio to use */ | |
383 | rate = params_rate(params); /* Sampling rate, in Hz */ | |
384 | ratio = cs42l51->mclk / rate; /* MCLK/LRCK ratio */ | |
385 | for (i = 0; i < nr_ratios; i++) { | |
386 | if (ratios[i].ratio == ratio) | |
387 | break; | |
388 | } | |
389 | ||
390 | if (i == nr_ratios) { | |
391 | /* We did not find a matching ratio */ | |
392 | dev_err(codec->dev, "could not find matching ratio\n"); | |
393 | return -EINVAL; | |
394 | } | |
395 | ||
396 | intf_ctl = snd_soc_read(codec, CS42L51_INTF_CTL); | |
397 | power_ctl = snd_soc_read(codec, CS42L51_MIC_POWER_CTL); | |
398 | ||
399 | intf_ctl &= ~(CS42L51_INTF_CTL_MASTER | CS42L51_INTF_CTL_ADC_I2S | |
400 | | CS42L51_INTF_CTL_DAC_FORMAT(7)); | |
401 | power_ctl &= ~(CS42L51_MIC_POWER_CTL_SPEED(3) | |
402 | | CS42L51_MIC_POWER_CTL_MCLK_DIV2); | |
403 | ||
404 | switch (cs42l51->func) { | |
405 | case MODE_MASTER: | |
406 | intf_ctl |= CS42L51_INTF_CTL_MASTER; | |
407 | power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); | |
408 | break; | |
409 | case MODE_SLAVE: | |
410 | power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); | |
411 | break; | |
412 | case MODE_SLAVE_AUTO: | |
413 | power_ctl |= CS42L51_MIC_POWER_CTL_AUTO; | |
414 | break; | |
415 | } | |
416 | ||
417 | switch (cs42l51->audio_mode) { | |
418 | case SND_SOC_DAIFMT_I2S: | |
419 | intf_ctl |= CS42L51_INTF_CTL_ADC_I2S; | |
420 | intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(CS42L51_DAC_DIF_I2S); | |
421 | break; | |
422 | case SND_SOC_DAIFMT_LEFT_J: | |
423 | intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(CS42L51_DAC_DIF_LJ24); | |
424 | break; | |
425 | case SND_SOC_DAIFMT_RIGHT_J: | |
1b6b0dfa MB |
426 | switch (params_width(params)) { |
427 | case 16: | |
72ed5a8c | 428 | fmt = CS42L51_DAC_DIF_RJ16; |
429 | break; | |
1b6b0dfa | 430 | case 18: |
72ed5a8c | 431 | fmt = CS42L51_DAC_DIF_RJ18; |
432 | break; | |
1b6b0dfa | 433 | case 20: |
72ed5a8c | 434 | fmt = CS42L51_DAC_DIF_RJ20; |
435 | break; | |
1b6b0dfa | 436 | case 24: |
72ed5a8c | 437 | fmt = CS42L51_DAC_DIF_RJ24; |
438 | break; | |
439 | default: | |
440 | dev_err(codec->dev, "unknown format\n"); | |
441 | return -EINVAL; | |
442 | } | |
443 | intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(fmt); | |
444 | break; | |
445 | default: | |
446 | dev_err(codec->dev, "unknown format\n"); | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
450 | if (ratios[i].mclk) | |
451 | power_ctl |= CS42L51_MIC_POWER_CTL_MCLK_DIV2; | |
452 | ||
453 | ret = snd_soc_write(codec, CS42L51_INTF_CTL, intf_ctl); | |
454 | if (ret < 0) | |
455 | return ret; | |
456 | ||
457 | ret = snd_soc_write(codec, CS42L51_MIC_POWER_CTL, power_ctl); | |
458 | if (ret < 0) | |
459 | return ret; | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute) | |
465 | { | |
466 | struct snd_soc_codec *codec = dai->codec; | |
467 | int reg; | |
468 | int mask = CS42L51_DAC_OUT_CTL_DACA_MUTE|CS42L51_DAC_OUT_CTL_DACB_MUTE; | |
469 | ||
470 | reg = snd_soc_read(codec, CS42L51_DAC_OUT_CTL); | |
471 | ||
472 | if (mute) | |
473 | reg |= mask; | |
474 | else | |
475 | reg &= ~mask; | |
476 | ||
477 | return snd_soc_write(codec, CS42L51_DAC_OUT_CTL, reg); | |
478 | } | |
479 | ||
85e7652d | 480 | static const struct snd_soc_dai_ops cs42l51_dai_ops = { |
72ed5a8c | 481 | .hw_params = cs42l51_hw_params, |
482 | .set_sysclk = cs42l51_set_dai_sysclk, | |
483 | .set_fmt = cs42l51_set_dai_fmt, | |
484 | .digital_mute = cs42l51_dai_mute, | |
485 | }; | |
486 | ||
f0fba2ad LG |
487 | static struct snd_soc_dai_driver cs42l51_dai = { |
488 | .name = "cs42l51-hifi", | |
72ed5a8c | 489 | .playback = { |
490 | .stream_name = "Playback", | |
491 | .channels_min = 1, | |
492 | .channels_max = 2, | |
493 | .rates = SNDRV_PCM_RATE_8000_96000, | |
494 | .formats = CS42L51_FORMATS, | |
495 | }, | |
496 | .capture = { | |
497 | .stream_name = "Capture", | |
498 | .channels_min = 1, | |
499 | .channels_max = 2, | |
500 | .rates = SNDRV_PCM_RATE_8000_96000, | |
501 | .formats = CS42L51_FORMATS, | |
502 | }, | |
503 | .ops = &cs42l51_dai_ops, | |
504 | }; | |
72ed5a8c | 505 | |
f0fba2ad | 506 | static int cs42l51_probe(struct snd_soc_codec *codec) |
72ed5a8c | 507 | { |
f0fba2ad LG |
508 | struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); |
509 | int ret, reg; | |
72ed5a8c | 510 | |
f0fba2ad LG |
511 | ret = cs42l51_fill_cache(codec); |
512 | if (ret < 0) { | |
513 | dev_err(codec->dev, "failed to fill register cache\n"); | |
514 | return ret; | |
515 | } | |
72ed5a8c | 516 | |
f0fba2ad | 517 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, cs42l51->control_type); |
72ed5a8c | 518 | if (ret < 0) { |
f0fba2ad | 519 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); |
72ed5a8c | 520 | return ret; |
521 | } | |
522 | ||
f0fba2ad LG |
523 | /* |
524 | * DAC configuration | |
525 | * - Use signal processor | |
526 | * - auto mute | |
527 | * - vol changes immediate | |
528 | * - no de-emphasize | |
529 | */ | |
530 | reg = CS42L51_DAC_CTL_DATA_SEL(1) | |
531 | | CS42L51_DAC_CTL_AMUTE | CS42L51_DAC_CTL_DACSZ(0); | |
532 | ret = snd_soc_write(codec, CS42L51_DAC_CTL, reg); | |
533 | if (ret < 0) | |
534 | return ret; | |
535 | ||
72ed5a8c | 536 | return 0; |
537 | } | |
538 | ||
f0fba2ad | 539 | static struct snd_soc_codec_driver soc_codec_device_cs42l51 = { |
3f7cec04 | 540 | .probe = cs42l51_probe, |
b284362b | 541 | .reg_cache_size = CS42L51_NUMREGS + 1, |
f0fba2ad | 542 | .reg_word_size = sizeof(u8), |
3f7cec04 AL |
543 | |
544 | .controls = cs42l51_snd_controls, | |
545 | .num_controls = ARRAY_SIZE(cs42l51_snd_controls), | |
546 | .dapm_widgets = cs42l51_dapm_widgets, | |
547 | .num_dapm_widgets = ARRAY_SIZE(cs42l51_dapm_widgets), | |
548 | .dapm_routes = cs42l51_routes, | |
549 | .num_dapm_routes = ARRAY_SIZE(cs42l51_routes), | |
f0fba2ad | 550 | }; |
72ed5a8c | 551 | |
f0fba2ad LG |
552 | static int cs42l51_i2c_probe(struct i2c_client *i2c_client, |
553 | const struct i2c_device_id *id) | |
72ed5a8c | 554 | { |
f0fba2ad LG |
555 | struct cs42l51_private *cs42l51; |
556 | int ret; | |
72ed5a8c | 557 | |
f0fba2ad LG |
558 | /* Verify that we have a CS42L51 */ |
559 | ret = i2c_smbus_read_byte_data(i2c_client, CS42L51_CHIP_REV_ID); | |
560 | if (ret < 0) { | |
561 | dev_err(&i2c_client->dev, "failed to read I2C\n"); | |
562 | goto error; | |
563 | } | |
564 | ||
565 | if ((ret != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_A)) && | |
566 | (ret != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_B))) { | |
567 | dev_err(&i2c_client->dev, "Invalid chip id\n"); | |
568 | ret = -ENODEV; | |
569 | goto error; | |
570 | } | |
571 | ||
572 | dev_info(&i2c_client->dev, "found device cs42l51 rev %d\n", | |
573 | ret & 7); | |
574 | ||
021b918e AL |
575 | cs42l51 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l51_private), |
576 | GFP_KERNEL); | |
f0fba2ad LG |
577 | if (!cs42l51) { |
578 | dev_err(&i2c_client->dev, "could not allocate codec\n"); | |
579 | return -ENOMEM; | |
580 | } | |
581 | ||
582 | i2c_set_clientdata(i2c_client, cs42l51); | |
f0fba2ad | 583 | cs42l51->control_type = SND_SOC_I2C; |
72ed5a8c | 584 | |
f0fba2ad LG |
585 | ret = snd_soc_register_codec(&i2c_client->dev, |
586 | &soc_codec_device_cs42l51, &cs42l51_dai, 1); | |
f0fba2ad LG |
587 | error: |
588 | return ret; | |
589 | } | |
590 | ||
591 | static int cs42l51_i2c_remove(struct i2c_client *client) | |
592 | { | |
f0fba2ad | 593 | snd_soc_unregister_codec(&client->dev); |
72ed5a8c | 594 | return 0; |
595 | } | |
596 | ||
f0fba2ad LG |
597 | static const struct i2c_device_id cs42l51_id[] = { |
598 | {"cs42l51", 0}, | |
599 | {} | |
600 | }; | |
601 | MODULE_DEVICE_TABLE(i2c, cs42l51_id); | |
602 | ||
603 | static struct i2c_driver cs42l51_i2c_driver = { | |
604 | .driver = { | |
c88e7b93 | 605 | .name = "cs42l51-codec", |
f0fba2ad LG |
606 | .owner = THIS_MODULE, |
607 | }, | |
608 | .id_table = cs42l51_id, | |
609 | .probe = cs42l51_i2c_probe, | |
610 | .remove = cs42l51_i2c_remove, | |
72ed5a8c | 611 | }; |
72ed5a8c | 612 | |
cee4fcfa | 613 | module_i2c_driver(cs42l51_i2c_driver); |
72ed5a8c | 614 | |
69737897 | 615 | MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); |
72ed5a8c | 616 | MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver"); |
617 | MODULE_LICENSE("GPL"); |