2 * uda1380.c - Philips UDA1380 ALSA SoC audio driver
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * Copyright (c) 2007 Philipp Zabel <philipp.zabel@gmail.com>
9 * Improved support for DAPM and audio routing/mixing capabilities,
12 * Modified by Richard Purdie <richard@openedhand.com> to fit into SoC
15 * Copyright (c) 2005 Giorgio Padrin <giorgio@mandarinlogiq.org>
16 * Copyright 2005 Openedhand Ltd.
19 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/types.h>
22 #include <linux/string.h>
23 #include <linux/slab.h>
24 #include <linux/errno.h>
25 #include <linux/ioctl.h>
26 #include <linux/delay.h>
27 #include <linux/i2c.h>
28 #include <sound/core.h>
29 #include <sound/control.h>
30 #include <sound/initval.h>
31 #include <sound/info.h>
32 #include <sound/soc.h>
33 #include <sound/soc-dapm.h>
34 #include <sound/tlv.h>
38 #define UDA1380_VERSION "0.6"
41 * uda1380 register cache
43 static const u16 uda1380_reg[UDA1380_CACHEREGNUM] = {
44 0x0502, 0x0000, 0x0000, 0x3f3f,
45 0x0202, 0x0000, 0x0000, 0x0000,
46 0x0000, 0x0000, 0x0000, 0x0000,
47 0x0000, 0x0000, 0x0000, 0x0000,
48 0x0000, 0xff00, 0x0000, 0x4800,
49 0x0000, 0x0000, 0x0000, 0x0000,
50 0x0000, 0x0000, 0x0000, 0x0000,
51 0x0000, 0x0000, 0x0000, 0x0000,
52 0x0000, 0x8000, 0x0002, 0x0000,
56 * read uda1380 register cache
58 static inline unsigned int uda1380_read_reg_cache(struct snd_soc_codec *codec,
61 u16 *cache = codec->reg_cache;
62 if (reg == UDA1380_RESET)
64 if (reg >= UDA1380_CACHEREGNUM)
70 * write uda1380 register cache
72 static inline void uda1380_write_reg_cache(struct snd_soc_codec *codec,
73 u16 reg, unsigned int value)
75 u16 *cache = codec->reg_cache;
76 if (reg >= UDA1380_CACHEREGNUM)
82 * write to the UDA1380 register space
84 static int uda1380_write(struct snd_soc_codec *codec, unsigned int reg,
90 * data[0] is register offset
95 data[1] = (value & 0xff00) >> 8;
96 data[2] = value & 0x00ff;
98 uda1380_write_reg_cache(codec, reg, value);
100 /* the interpolator & decimator regs must only be written when the
101 * codec DAI is active.
103 if (!codec->active && (reg >= UDA1380_MVOL))
105 pr_debug("uda1380: hw write %x val %x\n", reg, value);
106 if (codec->hw_write(codec->control_data, data, 3) == 3) {
108 i2c_master_send(codec->control_data, data, 1);
109 i2c_master_recv(codec->control_data, data, 2);
110 val = (data[0]<<8) | data[1];
112 pr_debug("uda1380: READ BACK VAL %x\n",
113 (data[0]<<8) | data[1]);
121 #define uda1380_reset(c) uda1380_write(c, UDA1380_RESET, 0)
123 /* declarations of ALSA reg_elem_REAL controls */
124 static const char *uda1380_deemp[] = {
131 static const char *uda1380_input_sel[] = {
137 static const char *uda1380_output_sel[] = {
141 static const char *uda1380_spf_mode[] = {
147 static const char *uda1380_capture_sel[] = {
151 static const char *uda1380_sel_ns[] = {
155 static const char *uda1380_mix_control[] = {
158 "before sound processing",
159 "after sound processing"
161 static const char *uda1380_sdet_setting[] = {
167 static const char *uda1380_os_setting[] = {
169 "double-speed (no mixing)",
170 "quad-speed (no mixing)"
173 static const struct soc_enum uda1380_deemp_enum[] = {
174 SOC_ENUM_SINGLE(UDA1380_DEEMP, 8, 5, uda1380_deemp),
175 SOC_ENUM_SINGLE(UDA1380_DEEMP, 0, 5, uda1380_deemp),
177 static const struct soc_enum uda1380_input_sel_enum =
178 SOC_ENUM_SINGLE(UDA1380_ADC, 2, 4, uda1380_input_sel); /* SEL_MIC, SEL_LNA */
179 static const struct soc_enum uda1380_output_sel_enum =
180 SOC_ENUM_SINGLE(UDA1380_PM, 7, 2, uda1380_output_sel); /* R02_EN_AVC */
181 static const struct soc_enum uda1380_spf_enum =
182 SOC_ENUM_SINGLE(UDA1380_MODE, 14, 4, uda1380_spf_mode); /* M */
183 static const struct soc_enum uda1380_capture_sel_enum =
184 SOC_ENUM_SINGLE(UDA1380_IFACE, 6, 2, uda1380_capture_sel); /* SEL_SOURCE */
185 static const struct soc_enum uda1380_sel_ns_enum =
186 SOC_ENUM_SINGLE(UDA1380_MIXER, 14, 2, uda1380_sel_ns); /* SEL_NS */
187 static const struct soc_enum uda1380_mix_enum =
188 SOC_ENUM_SINGLE(UDA1380_MIXER, 12, 4, uda1380_mix_control); /* MIX, MIX_POS */
189 static const struct soc_enum uda1380_sdet_enum =
190 SOC_ENUM_SINGLE(UDA1380_MIXER, 4, 4, uda1380_sdet_setting); /* SD_VALUE */
191 static const struct soc_enum uda1380_os_enum =
192 SOC_ENUM_SINGLE(UDA1380_MIXER, 0, 3, uda1380_os_setting); /* OS */
195 * from -48 dB in 1.5 dB steps (mute instead of -49.5 dB)
197 static DECLARE_TLV_DB_SCALE(amix_tlv, -4950, 150, 1);
200 * from -78 dB in 1 dB steps (3 dB steps, really. LSB are ignored),
201 * from -66 dB in 0.5 dB steps (2 dB steps, really) and
202 * from -52 dB in 0.25 dB steps
204 static const unsigned int mvol_tlv[] = {
205 TLV_DB_RANGE_HEAD(3),
206 0, 15, TLV_DB_SCALE_ITEM(-8200, 100, 1),
207 16, 43, TLV_DB_SCALE_ITEM(-6600, 50, 0),
208 44, 252, TLV_DB_SCALE_ITEM(-5200, 25, 0),
212 * from -72 dB in 1.5 dB steps (6 dB steps really),
213 * from -66 dB in 0.75 dB steps (3 dB steps really),
214 * from -60 dB in 0.5 dB steps (2 dB steps really) and
215 * from -46 dB in 0.25 dB steps
217 static const unsigned int vc_tlv[] = {
218 TLV_DB_RANGE_HEAD(4),
219 0, 7, TLV_DB_SCALE_ITEM(-7800, 150, 1),
220 8, 15, TLV_DB_SCALE_ITEM(-6600, 75, 0),
221 16, 43, TLV_DB_SCALE_ITEM(-6000, 50, 0),
222 44, 228, TLV_DB_SCALE_ITEM(-4600, 25, 0),
225 /* from 0 to 6 dB in 2 dB steps if SPF mode != flat */
226 static DECLARE_TLV_DB_SCALE(tr_tlv, 0, 200, 0);
228 /* from 0 to 24 dB in 2 dB steps, if SPF mode == maximum, otherwise cuts
229 * off at 18 dB max) */
230 static DECLARE_TLV_DB_SCALE(bb_tlv, 0, 200, 0);
232 /* from -63 to 24 dB in 0.5 dB steps (-128...48) */
233 static DECLARE_TLV_DB_SCALE(dec_tlv, -6400, 50, 1);
235 /* from 0 to 24 dB in 3 dB steps */
236 static DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
238 /* from 0 to 30 dB in 2 dB steps */
239 static DECLARE_TLV_DB_SCALE(vga_tlv, 0, 200, 0);
241 static const struct snd_kcontrol_new uda1380_snd_controls[] = {
242 SOC_DOUBLE_TLV("Analog Mixer Volume", UDA1380_AMIX, 0, 8, 44, 1, amix_tlv), /* AVCR, AVCL */
243 SOC_DOUBLE_TLV("Master Playback Volume", UDA1380_MVOL, 0, 8, 252, 1, mvol_tlv), /* MVCL, MVCR */
244 SOC_SINGLE_TLV("ADC Playback Volume", UDA1380_MIXVOL, 8, 228, 1, vc_tlv), /* VC2 */
245 SOC_SINGLE_TLV("PCM Playback Volume", UDA1380_MIXVOL, 0, 228, 1, vc_tlv), /* VC1 */
246 SOC_ENUM("Sound Processing Filter", uda1380_spf_enum), /* M */
247 SOC_DOUBLE_TLV("Tone Control - Treble", UDA1380_MODE, 4, 12, 3, 0, tr_tlv), /* TRL, TRR */
248 SOC_DOUBLE_TLV("Tone Control - Bass", UDA1380_MODE, 0, 8, 15, 0, bb_tlv), /* BBL, BBR */
249 /**/ SOC_SINGLE("Master Playback Switch", UDA1380_DEEMP, 14, 1, 1), /* MTM */
250 SOC_SINGLE("ADC Playback Switch", UDA1380_DEEMP, 11, 1, 1), /* MT2 from decimation filter */
251 SOC_ENUM("ADC Playback De-emphasis", uda1380_deemp_enum[0]), /* DE2 */
252 SOC_SINGLE("PCM Playback Switch", UDA1380_DEEMP, 3, 1, 1), /* MT1, from digital data input */
253 SOC_ENUM("PCM Playback De-emphasis", uda1380_deemp_enum[1]), /* DE1 */
254 SOC_SINGLE("DAC Polarity inverting Switch", UDA1380_MIXER, 15, 1, 0), /* DA_POL_INV */
255 SOC_ENUM("Noise Shaper", uda1380_sel_ns_enum), /* SEL_NS */
256 SOC_ENUM("Digital Mixer Signal Control", uda1380_mix_enum), /* MIX_POS, MIX */
257 SOC_SINGLE("Silence Switch", UDA1380_MIXER, 7, 1, 0), /* SILENCE, force DAC output to silence */
258 SOC_SINGLE("Silence Detector Switch", UDA1380_MIXER, 6, 1, 0), /* SDET_ON */
259 SOC_ENUM("Silence Detector Setting", uda1380_sdet_enum), /* SD_VALUE */
260 SOC_ENUM("Oversampling Input", uda1380_os_enum), /* OS */
261 SOC_DOUBLE_S8_TLV("ADC Capture Volume", UDA1380_DEC, -128, 48, dec_tlv), /* ML_DEC, MR_DEC */
262 /**/ SOC_SINGLE("ADC Capture Switch", UDA1380_PGA, 15, 1, 1), /* MT_ADC */
263 SOC_DOUBLE_TLV("Line Capture Volume", UDA1380_PGA, 0, 8, 8, 0, pga_tlv), /* PGA_GAINCTRLL, PGA_GAINCTRLR */
264 SOC_SINGLE("ADC Polarity inverting Switch", UDA1380_ADC, 12, 1, 0), /* ADCPOL_INV */
265 SOC_SINGLE_TLV("Mic Capture Volume", UDA1380_ADC, 8, 15, 0, vga_tlv), /* VGA_CTRL */
266 SOC_SINGLE("DC Filter Bypass Switch", UDA1380_ADC, 1, 1, 0), /* SKIP_DCFIL (before decimator) */
267 SOC_SINGLE("DC Filter Enable Switch", UDA1380_ADC, 0, 1, 0), /* EN_DCFIL (at output of decimator) */
268 SOC_SINGLE("AGC Timing", UDA1380_AGC, 8, 7, 0), /* TODO: enum, see table 62 */
269 SOC_SINGLE("AGC Target level", UDA1380_AGC, 2, 3, 1), /* AGC_LEVEL */
270 /* -5.5, -8, -11.5, -14 dBFS */
271 SOC_SINGLE("AGC Switch", UDA1380_AGC, 0, 1, 0),
274 /* add non dapm controls */
275 static int uda1380_add_controls(struct snd_soc_codec *codec)
279 for (i = 0; i < ARRAY_SIZE(uda1380_snd_controls); i++) {
280 err = snd_ctl_add(codec->card,
281 snd_soc_cnew(&uda1380_snd_controls[i], codec, NULL));
290 static const struct snd_kcontrol_new uda1380_input_mux_control =
291 SOC_DAPM_ENUM("Route", uda1380_input_sel_enum);
294 static const struct snd_kcontrol_new uda1380_output_mux_control =
295 SOC_DAPM_ENUM("Route", uda1380_output_sel_enum);
298 static const struct snd_kcontrol_new uda1380_capture_mux_control =
299 SOC_DAPM_ENUM("Route", uda1380_capture_sel_enum);
302 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
303 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
304 &uda1380_input_mux_control),
305 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 0, 0,
306 &uda1380_output_mux_control),
307 SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0,
308 &uda1380_capture_mux_control),
309 SND_SOC_DAPM_PGA("Left PGA", UDA1380_PM, 3, 0, NULL, 0),
310 SND_SOC_DAPM_PGA("Right PGA", UDA1380_PM, 1, 0, NULL, 0),
311 SND_SOC_DAPM_PGA("Mic LNA", UDA1380_PM, 4, 0, NULL, 0),
312 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", UDA1380_PM, 2, 0),
313 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", UDA1380_PM, 0, 0),
314 SND_SOC_DAPM_INPUT("VINM"),
315 SND_SOC_DAPM_INPUT("VINL"),
316 SND_SOC_DAPM_INPUT("VINR"),
317 SND_SOC_DAPM_MIXER("Analog Mixer", UDA1380_PM, 6, 0, NULL, 0),
318 SND_SOC_DAPM_OUTPUT("VOUTLHP"),
319 SND_SOC_DAPM_OUTPUT("VOUTRHP"),
320 SND_SOC_DAPM_OUTPUT("VOUTL"),
321 SND_SOC_DAPM_OUTPUT("VOUTR"),
322 SND_SOC_DAPM_DAC("DAC", "Playback", UDA1380_PM, 10, 0),
323 SND_SOC_DAPM_PGA("HeadPhone Driver", UDA1380_PM, 13, 0, NULL, 0),
326 static const struct snd_soc_dapm_route audio_map[] = {
329 {"HeadPhone Driver", NULL, "Output Mux"},
330 {"VOUTR", NULL, "Output Mux"},
331 {"VOUTL", NULL, "Output Mux"},
333 {"Analog Mixer", NULL, "VINR"},
334 {"Analog Mixer", NULL, "VINL"},
335 {"Analog Mixer", NULL, "DAC"},
337 {"Output Mux", "DAC", "DAC"},
338 {"Output Mux", "Analog Mixer", "Analog Mixer"},
340 /* {"DAC", "Digital Mixer", "I2S" } */
342 /* headphone driver */
343 {"VOUTLHP", NULL, "HeadPhone Driver"},
344 {"VOUTRHP", NULL, "HeadPhone Driver"},
347 {"Left ADC", NULL, "Input Mux"},
348 {"Input Mux", "Mic", "Mic LNA"},
349 {"Input Mux", "Mic + Line R", "Mic LNA"},
350 {"Input Mux", "Line L", "Left PGA"},
351 {"Input Mux", "Line", "Left PGA"},
354 {"Right ADC", "Mic + Line R", "Right PGA"},
355 {"Right ADC", "Line", "Right PGA"},
358 {"Mic LNA", NULL, "VINM"},
359 {"Left PGA", NULL, "VINL"},
360 {"Right PGA", NULL, "VINR"},
363 static int uda1380_add_widgets(struct snd_soc_codec *codec)
365 snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
366 ARRAY_SIZE(uda1380_dapm_widgets));
368 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
370 snd_soc_dapm_new_widgets(codec);
374 static int uda1380_set_dai_fmt(struct snd_soc_dai *codec_dai,
377 struct snd_soc_codec *codec = codec_dai->codec;
380 /* set up DAI based upon fmt */
381 iface = uda1380_read_reg_cache(codec, UDA1380_IFACE);
382 iface &= ~(R01_SFORI_MASK | R01_SIM | R01_SFORO_MASK);
384 /* FIXME: how to select I2S for DATAO and MSB for DATAI correctly? */
385 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
386 case SND_SOC_DAIFMT_I2S:
387 iface |= R01_SFORI_I2S | R01_SFORO_I2S;
389 case SND_SOC_DAIFMT_LSB:
390 iface |= R01_SFORI_LSB16 | R01_SFORO_I2S;
392 case SND_SOC_DAIFMT_MSB:
393 iface |= R01_SFORI_MSB | R01_SFORO_I2S;
396 if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) == SND_SOC_DAIFMT_CBM_CFM)
399 uda1380_write(codec, UDA1380_IFACE, iface);
406 * We can only write the interpolator and decimator registers
407 * when the DAI is being clocked by the CPU DAI. It's up to the
408 * machine and cpu DAI driver to do this before we are called.
410 static int uda1380_pcm_prepare(struct snd_pcm_substream *substream,
411 struct snd_soc_dai *dai)
413 struct snd_soc_pcm_runtime *rtd = substream->private_data;
414 struct snd_soc_device *socdev = rtd->socdev;
415 struct snd_soc_codec *codec = socdev->codec;
416 int reg, reg_start, reg_end, clk;
418 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
419 reg_start = UDA1380_MVOL;
420 reg_end = UDA1380_MIXER;
422 reg_start = UDA1380_DEC;
423 reg_end = UDA1380_AGC;
426 /* FIXME disable DAC_CLK */
427 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
428 uda1380_write(codec, UDA1380_CLK, clk & ~R00_DAC_CLK);
430 for (reg = reg_start; reg <= reg_end; reg++) {
431 pr_debug("uda1380: flush reg %x val %x:", reg,
432 uda1380_read_reg_cache(codec, reg));
433 uda1380_write(codec, reg, uda1380_read_reg_cache(codec, reg));
436 /* FIXME enable DAC_CLK */
437 uda1380_write(codec, UDA1380_CLK, clk | R00_DAC_CLK);
442 static int uda1380_pcm_hw_params(struct snd_pcm_substream *substream,
443 struct snd_pcm_hw_params *params,
444 struct snd_soc_dai *dai)
446 struct snd_soc_pcm_runtime *rtd = substream->private_data;
447 struct snd_soc_device *socdev = rtd->socdev;
448 struct snd_soc_codec *codec = socdev->codec;
449 u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
451 /* set WSPLL power and divider if running from this clock */
452 if (clk & R00_DAC_CLK) {
453 int rate = params_rate(params);
454 u16 pm = uda1380_read_reg_cache(codec, UDA1380_PM);
455 clk &= ~0x3; /* clear SEL_LOOP_DIV */
460 case 12501 ... 25000:
463 case 25001 ... 50000:
466 case 50001 ... 100000:
470 uda1380_write(codec, UDA1380_PM, R02_PON_PLL | pm);
473 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
474 clk |= R00_EN_DAC | R00_EN_INT;
476 clk |= R00_EN_ADC | R00_EN_DEC;
478 uda1380_write(codec, UDA1380_CLK, clk);
482 static void uda1380_pcm_shutdown(struct snd_pcm_substream *substream,
483 struct snd_soc_dai *dai)
485 struct snd_soc_pcm_runtime *rtd = substream->private_data;
486 struct snd_soc_device *socdev = rtd->socdev;
487 struct snd_soc_codec *codec = socdev->codec;
488 u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
490 /* shut down WSPLL power if running from this clock */
491 if (clk & R00_DAC_CLK) {
492 u16 pm = uda1380_read_reg_cache(codec, UDA1380_PM);
493 uda1380_write(codec, UDA1380_PM, ~R02_PON_PLL & pm);
496 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
497 clk &= ~(R00_EN_DAC | R00_EN_INT);
499 clk &= ~(R00_EN_ADC | R00_EN_DEC);
501 uda1380_write(codec, UDA1380_CLK, clk);
504 static int uda1380_mute(struct snd_soc_dai *codec_dai, int mute)
506 struct snd_soc_codec *codec = codec_dai->codec;
507 u16 mute_reg = uda1380_read_reg_cache(codec, UDA1380_DEEMP) & ~R13_MTM;
509 /* FIXME: mute(codec,0) is called when the magician clock is already
510 * set to WSPLL, but for some unknown reason writing to interpolator
511 * registers works only when clocked by SYSCLK */
512 u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
513 uda1380_write(codec, UDA1380_CLK, ~R00_DAC_CLK & clk);
515 uda1380_write(codec, UDA1380_DEEMP, mute_reg | R13_MTM);
517 uda1380_write(codec, UDA1380_DEEMP, mute_reg);
518 uda1380_write(codec, UDA1380_CLK, clk);
522 static int uda1380_set_bias_level(struct snd_soc_codec *codec,
523 enum snd_soc_bias_level level)
525 int pm = uda1380_read_reg_cache(codec, UDA1380_PM);
528 case SND_SOC_BIAS_ON:
529 case SND_SOC_BIAS_PREPARE:
530 uda1380_write(codec, UDA1380_PM, R02_PON_BIAS | pm);
532 case SND_SOC_BIAS_STANDBY:
533 uda1380_write(codec, UDA1380_PM, R02_PON_BIAS);
535 case SND_SOC_BIAS_OFF:
536 uda1380_write(codec, UDA1380_PM, 0x0);
539 codec->bias_level = level;
543 #define UDA1380_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
544 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
545 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
547 struct snd_soc_dai uda1380_dai[] = {
551 .stream_name = "Playback",
554 .rates = UDA1380_RATES,
555 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
557 .stream_name = "Capture",
560 .rates = UDA1380_RATES,
561 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
563 .hw_params = uda1380_pcm_hw_params,
564 .shutdown = uda1380_pcm_shutdown,
565 .prepare = uda1380_pcm_prepare,
566 .digital_mute = uda1380_mute,
567 .set_fmt = uda1380_set_dai_fmt,
570 { /* playback only - dual interface */
573 .stream_name = "Playback",
576 .rates = UDA1380_RATES,
577 .formats = SNDRV_PCM_FMTBIT_S16_LE,
580 .hw_params = uda1380_pcm_hw_params,
581 .shutdown = uda1380_pcm_shutdown,
582 .prepare = uda1380_pcm_prepare,
583 .digital_mute = uda1380_mute,
584 .set_fmt = uda1380_set_dai_fmt,
587 { /* capture only - dual interface*/
590 .stream_name = "Capture",
593 .rates = UDA1380_RATES,
594 .formats = SNDRV_PCM_FMTBIT_S16_LE,
597 .hw_params = uda1380_pcm_hw_params,
598 .shutdown = uda1380_pcm_shutdown,
599 .prepare = uda1380_pcm_prepare,
600 .set_fmt = uda1380_set_dai_fmt,
604 EXPORT_SYMBOL_GPL(uda1380_dai);
606 static int uda1380_suspend(struct platform_device *pdev, pm_message_t state)
608 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
609 struct snd_soc_codec *codec = socdev->codec;
611 uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF);
615 static int uda1380_resume(struct platform_device *pdev)
617 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
618 struct snd_soc_codec *codec = socdev->codec;
621 u16 *cache = codec->reg_cache;
623 /* Sync reg_cache with the hardware */
624 for (i = 0; i < ARRAY_SIZE(uda1380_reg); i++) {
625 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
626 data[1] = cache[i] & 0x00ff;
627 codec->hw_write(codec->control_data, data, 2);
629 uda1380_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
630 uda1380_set_bias_level(codec, codec->suspend_bias_level);
635 * initialise the UDA1380 driver
636 * register mixer and dsp interfaces with the kernel
638 static int uda1380_init(struct snd_soc_device *socdev, int dac_clk)
640 struct snd_soc_codec *codec = socdev->codec;
643 codec->name = "UDA1380";
644 codec->owner = THIS_MODULE;
645 codec->read = uda1380_read_reg_cache;
646 codec->write = uda1380_write;
647 codec->set_bias_level = uda1380_set_bias_level;
648 codec->dai = uda1380_dai;
649 codec->num_dai = ARRAY_SIZE(uda1380_dai);
650 codec->reg_cache = kmemdup(uda1380_reg, sizeof(uda1380_reg),
652 if (codec->reg_cache == NULL)
654 codec->reg_cache_size = ARRAY_SIZE(uda1380_reg);
655 codec->reg_cache_step = 1;
656 uda1380_reset(codec);
659 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
661 pr_err("uda1380: failed to create pcms\n");
665 /* power on device */
666 uda1380_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
667 /* set clock input */
669 case UDA1380_DAC_CLK_SYSCLK:
670 uda1380_write(codec, UDA1380_CLK, 0);
672 case UDA1380_DAC_CLK_WSPLL:
673 uda1380_write(codec, UDA1380_CLK, R00_DAC_CLK);
678 uda1380_add_controls(codec);
679 uda1380_add_widgets(codec);
680 ret = snd_soc_init_card(socdev);
682 pr_err("uda1380: failed to register card\n");
689 snd_soc_free_pcms(socdev);
690 snd_soc_dapm_free(socdev);
692 kfree(codec->reg_cache);
696 static struct snd_soc_device *uda1380_socdev;
698 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
700 static int uda1380_i2c_probe(struct i2c_client *i2c,
701 const struct i2c_device_id *id)
703 struct snd_soc_device *socdev = uda1380_socdev;
704 struct uda1380_setup_data *setup = socdev->codec_data;
705 struct snd_soc_codec *codec = socdev->codec;
708 i2c_set_clientdata(i2c, codec);
709 codec->control_data = i2c;
711 ret = uda1380_init(socdev, setup->dac_clk);
713 pr_err("uda1380: failed to initialise UDA1380\n");
718 static int uda1380_i2c_remove(struct i2c_client *client)
720 struct snd_soc_codec *codec = i2c_get_clientdata(client);
721 kfree(codec->reg_cache);
725 static const struct i2c_device_id uda1380_i2c_id[] = {
729 MODULE_DEVICE_TABLE(i2c, uda1380_i2c_id);
731 static struct i2c_driver uda1380_i2c_driver = {
733 .name = "UDA1380 I2C Codec",
734 .owner = THIS_MODULE,
736 .probe = uda1380_i2c_probe,
737 .remove = uda1380_i2c_remove,
738 .id_table = uda1380_i2c_id,
741 static int uda1380_add_i2c_device(struct platform_device *pdev,
742 const struct uda1380_setup_data *setup)
744 struct i2c_board_info info;
745 struct i2c_adapter *adapter;
746 struct i2c_client *client;
749 ret = i2c_add_driver(&uda1380_i2c_driver);
751 dev_err(&pdev->dev, "can't add i2c driver\n");
755 memset(&info, 0, sizeof(struct i2c_board_info));
756 info.addr = setup->i2c_address;
757 strlcpy(info.type, "uda1380", I2C_NAME_SIZE);
759 adapter = i2c_get_adapter(setup->i2c_bus);
761 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
766 client = i2c_new_device(adapter, &info);
767 i2c_put_adapter(adapter);
769 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
770 (unsigned int)info.addr);
777 i2c_del_driver(&uda1380_i2c_driver);
782 static int uda1380_probe(struct platform_device *pdev)
784 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
785 struct uda1380_setup_data *setup;
786 struct snd_soc_codec *codec;
789 pr_info("UDA1380 Audio Codec %s", UDA1380_VERSION);
791 setup = socdev->codec_data;
792 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
796 socdev->codec = codec;
797 mutex_init(&codec->mutex);
798 INIT_LIST_HEAD(&codec->dapm_widgets);
799 INIT_LIST_HEAD(&codec->dapm_paths);
801 uda1380_socdev = socdev;
804 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
805 if (setup->i2c_address) {
806 codec->hw_write = (hw_write_t)i2c_master_send;
807 ret = uda1380_add_i2c_device(pdev, setup);
816 /* power down chip */
817 static int uda1380_remove(struct platform_device *pdev)
819 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
820 struct snd_soc_codec *codec = socdev->codec;
822 if (codec->control_data)
823 uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF);
825 snd_soc_free_pcms(socdev);
826 snd_soc_dapm_free(socdev);
827 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
828 i2c_unregister_device(codec->control_data);
829 i2c_del_driver(&uda1380_i2c_driver);
836 struct snd_soc_codec_device soc_codec_dev_uda1380 = {
837 .probe = uda1380_probe,
838 .remove = uda1380_remove,
839 .suspend = uda1380_suspend,
840 .resume = uda1380_resume,
842 EXPORT_SYMBOL_GPL(soc_codec_dev_uda1380);
844 static int __devinit uda1380_modinit(void)
846 return snd_soc_register_dais(uda1380_dai, ARRAY_SIZE(uda1380_dai));
848 module_init(uda1380_modinit);
850 static void __exit uda1380_exit(void)
852 snd_soc_unregister_dais(uda1380_dai, ARRAY_SIZE(uda1380_dai));
854 module_exit(uda1380_exit);
856 MODULE_AUTHOR("Giorgio Padrin");
857 MODULE_DESCRIPTION("Audio support for codec Philips UDA1380");
858 MODULE_LICENSE("GPL");