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19#define pr_fmt(fmt) KBUILD_MODNAME ":%s:%d: " fmt, __func__, __LINE__
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/of_device.h>
28#include <linux/of_gpio.h>
29#include <linux/regmap.h>
30#include <linux/regulator/consumer.h>
31#include <linux/gpio/consumer.h>
32#include <linux/slab.h>
33#include <linux/workqueue.h>
34#include <sound/core.h>
35#include <sound/pcm.h>
36#include <sound/pcm_params.h>
37#include <sound/soc.h>
38#include <sound/soc-dapm.h>
39#include <sound/initval.h>
40#include <sound/tlv.h>
41
42#include <sound/sta32x.h>
43#include "sta32x.h"
44
45#define STA32X_RATES (SNDRV_PCM_RATE_32000 | \
46 SNDRV_PCM_RATE_44100 | \
47 SNDRV_PCM_RATE_48000 | \
48 SNDRV_PCM_RATE_88200 | \
49 SNDRV_PCM_RATE_96000 | \
50 SNDRV_PCM_RATE_176400 | \
51 SNDRV_PCM_RATE_192000)
52
53#define STA32X_FORMATS \
54 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \
55 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \
56 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
57 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | \
58 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | \
59 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE)
60
61
62static const struct reg_default sta32x_regs[] = {
63 { 0x0, 0x63 },
64 { 0x1, 0x80 },
65 { 0x2, 0xc2 },
66 { 0x3, 0x40 },
67 { 0x4, 0xc2 },
68 { 0x5, 0x5c },
69 { 0x6, 0x10 },
70 { 0x7, 0xff },
71 { 0x8, 0x60 },
72 { 0x9, 0x60 },
73 { 0xa, 0x60 },
74 { 0xb, 0x80 },
75 { 0xc, 0x00 },
76 { 0xd, 0x00 },
77 { 0xe, 0x00 },
78 { 0xf, 0x40 },
79 { 0x10, 0x80 },
80 { 0x11, 0x77 },
81 { 0x12, 0x6a },
82 { 0x13, 0x69 },
83 { 0x14, 0x6a },
84 { 0x15, 0x69 },
85 { 0x16, 0x00 },
86 { 0x17, 0x00 },
87 { 0x18, 0x00 },
88 { 0x19, 0x00 },
89 { 0x1a, 0x00 },
90 { 0x1b, 0x00 },
91 { 0x1c, 0x00 },
92 { 0x1d, 0x00 },
93 { 0x1e, 0x00 },
94 { 0x1f, 0x00 },
95 { 0x20, 0x00 },
96 { 0x21, 0x00 },
97 { 0x22, 0x00 },
98 { 0x23, 0x00 },
99 { 0x24, 0x00 },
100 { 0x25, 0x00 },
101 { 0x26, 0x00 },
102 { 0x27, 0x2d },
103 { 0x28, 0xc0 },
104 { 0x2b, 0x00 },
105 { 0x2c, 0x0c },
106};
107
108static const struct regmap_range sta32x_write_regs_range[] = {
109 regmap_reg_range(STA32X_CONFA, STA32X_FDRC2),
110};
111
112static const struct regmap_range sta32x_read_regs_range[] = {
113 regmap_reg_range(STA32X_CONFA, STA32X_FDRC2),
114};
115
116static const struct regmap_range sta32x_volatile_regs_range[] = {
117 regmap_reg_range(STA32X_CFADDR2, STA32X_CFUD),
118};
119
120static const struct regmap_access_table sta32x_write_regs = {
121 .yes_ranges = sta32x_write_regs_range,
122 .n_yes_ranges = ARRAY_SIZE(sta32x_write_regs_range),
123};
124
125static const struct regmap_access_table sta32x_read_regs = {
126 .yes_ranges = sta32x_read_regs_range,
127 .n_yes_ranges = ARRAY_SIZE(sta32x_read_regs_range),
128};
129
130static const struct regmap_access_table sta32x_volatile_regs = {
131 .yes_ranges = sta32x_volatile_regs_range,
132 .n_yes_ranges = ARRAY_SIZE(sta32x_volatile_regs_range),
133};
134
135
136static const char *sta32x_supply_names[] = {
137 "Vdda",
138 "Vdd3",
139 "Vcc"
140};
141
142
143struct sta32x_priv {
144 struct regmap *regmap;
145 struct regulator_bulk_data supplies[ARRAY_SIZE(sta32x_supply_names)];
146 struct snd_soc_codec *codec;
147 struct sta32x_platform_data *pdata;
148
149 unsigned int mclk;
150 unsigned int format;
151
152 u32 coef_shadow[STA32X_COEF_COUNT];
153 struct delayed_work watchdog_work;
154 int shutdown;
155 struct gpio_desc *gpiod_nreset;
156 struct mutex coeff_lock;
157};
158
159static const DECLARE_TLV_DB_SCALE(mvol_tlv, -12700, 50, 1);
160static const DECLARE_TLV_DB_SCALE(chvol_tlv, -7950, 50, 1);
161static const DECLARE_TLV_DB_SCALE(tone_tlv, -120, 200, 0);
162
163static const char *sta32x_drc_ac[] = {
164 "Anti-Clipping", "Dynamic Range Compression" };
165static const char *sta32x_auto_eq_mode[] = {
166 "User", "Preset", "Loudness" };
167static const char *sta32x_auto_gc_mode[] = {
168 "User", "AC no clipping", "AC limited clipping (10%)",
169 "DRC nighttime listening mode" };
170static const char *sta32x_auto_xo_mode[] = {
171 "User", "80Hz", "100Hz", "120Hz", "140Hz", "160Hz", "180Hz", "200Hz",
172 "220Hz", "240Hz", "260Hz", "280Hz", "300Hz", "320Hz", "340Hz", "360Hz" };
173static const char *sta32x_preset_eq_mode[] = {
174 "Flat", "Rock", "Soft Rock", "Jazz", "Classical", "Dance", "Pop", "Soft",
175 "Hard", "Party", "Vocal", "Hip-Hop", "Dialog", "Bass-boost #1",
176 "Bass-boost #2", "Bass-boost #3", "Loudness 1", "Loudness 2",
177 "Loudness 3", "Loudness 4", "Loudness 5", "Loudness 6", "Loudness 7",
178 "Loudness 8", "Loudness 9", "Loudness 10", "Loudness 11", "Loudness 12",
179 "Loudness 13", "Loudness 14", "Loudness 15", "Loudness 16" };
180static const char *sta32x_limiter_select[] = {
181 "Limiter Disabled", "Limiter #1", "Limiter #2" };
182static const char *sta32x_limiter_attack_rate[] = {
183 "3.1584", "2.7072", "2.2560", "1.8048", "1.3536", "0.9024",
184 "0.4512", "0.2256", "0.1504", "0.1123", "0.0902", "0.0752",
185 "0.0645", "0.0564", "0.0501", "0.0451" };
186static const char *sta32x_limiter_release_rate[] = {
187 "0.5116", "0.1370", "0.0744", "0.0499", "0.0360", "0.0299",
188 "0.0264", "0.0208", "0.0198", "0.0172", "0.0147", "0.0137",
189 "0.0134", "0.0117", "0.0110", "0.0104" };
190static DECLARE_TLV_DB_RANGE(sta32x_limiter_ac_attack_tlv,
191 0, 7, TLV_DB_SCALE_ITEM(-1200, 200, 0),
192 8, 16, TLV_DB_SCALE_ITEM(300, 100, 0),
193);
194
195static DECLARE_TLV_DB_RANGE(sta32x_limiter_ac_release_tlv,
196 0, 0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
197 1, 1, TLV_DB_SCALE_ITEM(-2900, 0, 0),
198 2, 2, TLV_DB_SCALE_ITEM(-2000, 0, 0),
199 3, 8, TLV_DB_SCALE_ITEM(-1400, 200, 0),
200 8, 16, TLV_DB_SCALE_ITEM(-700, 100, 0),
201);
202
203static DECLARE_TLV_DB_RANGE(sta32x_limiter_drc_attack_tlv,
204 0, 7, TLV_DB_SCALE_ITEM(-3100, 200, 0),
205 8, 13, TLV_DB_SCALE_ITEM(-1600, 100, 0),
206 14, 16, TLV_DB_SCALE_ITEM(-1000, 300, 0),
207);
208
209static DECLARE_TLV_DB_RANGE(sta32x_limiter_drc_release_tlv,
210 0, 0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
211 1, 2, TLV_DB_SCALE_ITEM(-3800, 200, 0),
212 3, 4, TLV_DB_SCALE_ITEM(-3300, 200, 0),
213 5, 12, TLV_DB_SCALE_ITEM(-3000, 200, 0),
214 13, 16, TLV_DB_SCALE_ITEM(-1500, 300, 0),
215);
216
217static SOC_ENUM_SINGLE_DECL(sta32x_drc_ac_enum,
218 STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
219 sta32x_drc_ac);
220static SOC_ENUM_SINGLE_DECL(sta32x_auto_eq_enum,
221 STA32X_AUTO1, STA32X_AUTO1_AMEQ_SHIFT,
222 sta32x_auto_eq_mode);
223static SOC_ENUM_SINGLE_DECL(sta32x_auto_gc_enum,
224 STA32X_AUTO1, STA32X_AUTO1_AMGC_SHIFT,
225 sta32x_auto_gc_mode);
226static SOC_ENUM_SINGLE_DECL(sta32x_auto_xo_enum,
227 STA32X_AUTO2, STA32X_AUTO2_XO_SHIFT,
228 sta32x_auto_xo_mode);
229static SOC_ENUM_SINGLE_DECL(sta32x_preset_eq_enum,
230 STA32X_AUTO3, STA32X_AUTO3_PEQ_SHIFT,
231 sta32x_preset_eq_mode);
232static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch1_enum,
233 STA32X_C1CFG, STA32X_CxCFG_LS_SHIFT,
234 sta32x_limiter_select);
235static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch2_enum,
236 STA32X_C2CFG, STA32X_CxCFG_LS_SHIFT,
237 sta32x_limiter_select);
238static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch3_enum,
239 STA32X_C3CFG, STA32X_CxCFG_LS_SHIFT,
240 sta32x_limiter_select);
241static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_attack_rate_enum,
242 STA32X_L1AR, STA32X_LxA_SHIFT,
243 sta32x_limiter_attack_rate);
244static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_attack_rate_enum,
245 STA32X_L2AR, STA32X_LxA_SHIFT,
246 sta32x_limiter_attack_rate);
247static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_release_rate_enum,
248 STA32X_L1AR, STA32X_LxR_SHIFT,
249 sta32x_limiter_release_rate);
250static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_release_rate_enum,
251 STA32X_L2AR, STA32X_LxR_SHIFT,
252 sta32x_limiter_release_rate);
253
254
255
256
257
258
259
260
261static int sta32x_coefficient_info(struct snd_kcontrol *kcontrol,
262 struct snd_ctl_elem_info *uinfo)
263{
264 int numcoef = kcontrol->private_value >> 16;
265 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
266 uinfo->count = 3 * numcoef;
267 return 0;
268}
269
270static int sta32x_coefficient_get(struct snd_kcontrol *kcontrol,
271 struct snd_ctl_elem_value *ucontrol)
272{
273 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
274 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
275 int numcoef = kcontrol->private_value >> 16;
276 int index = kcontrol->private_value & 0xffff;
277 unsigned int cfud, val;
278 int i, ret = 0;
279
280 mutex_lock(&sta32x->coeff_lock);
281
282
283 regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
284 cfud &= 0xf0;
285
286
287
288
289 regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
290
291 regmap_write(sta32x->regmap, STA32X_CFADDR2, index);
292 if (numcoef == 1) {
293 regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x04);
294 } else if (numcoef == 5) {
295 regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x08);
296 } else {
297 ret = -EINVAL;
298 goto exit_unlock;
299 }
300
301 for (i = 0; i < 3 * numcoef; i++) {
302 regmap_read(sta32x->regmap, STA32X_B1CF1 + i, &val);
303 ucontrol->value.bytes.data[i] = val;
304 }
305
306exit_unlock:
307 mutex_unlock(&sta32x->coeff_lock);
308
309 return ret;
310}
311
312static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol,
313 struct snd_ctl_elem_value *ucontrol)
314{
315 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
316 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
317 int numcoef = kcontrol->private_value >> 16;
318 int index = kcontrol->private_value & 0xffff;
319 unsigned int cfud;
320 int i;
321
322
323 regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
324 cfud &= 0xf0;
325
326
327
328
329 regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
330
331 regmap_write(sta32x->regmap, STA32X_CFADDR2, index);
332 for (i = 0; i < numcoef && (index + i < STA32X_COEF_COUNT); i++)
333 sta32x->coef_shadow[index + i] =
334 (ucontrol->value.bytes.data[3 * i] << 16)
335 | (ucontrol->value.bytes.data[3 * i + 1] << 8)
336 | (ucontrol->value.bytes.data[3 * i + 2]);
337 for (i = 0; i < 3 * numcoef; i++)
338 regmap_write(sta32x->regmap, STA32X_B1CF1 + i,
339 ucontrol->value.bytes.data[i]);
340 if (numcoef == 1)
341 regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x01);
342 else if (numcoef == 5)
343 regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x02);
344 else
345 return -EINVAL;
346
347 return 0;
348}
349
350static int sta32x_sync_coef_shadow(struct snd_soc_codec *codec)
351{
352 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
353 unsigned int cfud;
354 int i;
355
356
357 regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
358 cfud &= 0xf0;
359
360 for (i = 0; i < STA32X_COEF_COUNT; i++) {
361 regmap_write(sta32x->regmap, STA32X_CFADDR2, i);
362 regmap_write(sta32x->regmap, STA32X_B1CF1,
363 (sta32x->coef_shadow[i] >> 16) & 0xff);
364 regmap_write(sta32x->regmap, STA32X_B1CF2,
365 (sta32x->coef_shadow[i] >> 8) & 0xff);
366 regmap_write(sta32x->regmap, STA32X_B1CF3,
367 (sta32x->coef_shadow[i]) & 0xff);
368
369
370
371
372 regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
373 regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x01);
374 }
375 return 0;
376}
377
378static int sta32x_cache_sync(struct snd_soc_codec *codec)
379{
380 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
381 unsigned int mute;
382 int rc;
383
384
385 regmap_read(sta32x->regmap, STA32X_MMUTE, &mute);
386 regmap_write(sta32x->regmap, STA32X_MMUTE, mute | STA32X_MMUTE_MMUTE);
387 sta32x_sync_coef_shadow(codec);
388 rc = regcache_sync(sta32x->regmap);
389 regmap_write(sta32x->regmap, STA32X_MMUTE, mute);
390 return rc;
391}
392
393
394static void sta32x_watchdog(struct work_struct *work)
395{
396 struct sta32x_priv *sta32x = container_of(work, struct sta32x_priv,
397 watchdog_work.work);
398 struct snd_soc_codec *codec = sta32x->codec;
399 unsigned int confa, confa_cached;
400
401
402 confa_cached = snd_soc_read(codec, STA32X_CONFA);
403 regcache_cache_bypass(sta32x->regmap, true);
404 confa = snd_soc_read(codec, STA32X_CONFA);
405 regcache_cache_bypass(sta32x->regmap, false);
406 if (confa != confa_cached) {
407 regcache_mark_dirty(sta32x->regmap);
408 sta32x_cache_sync(codec);
409 }
410
411 if (!sta32x->shutdown)
412 queue_delayed_work(system_power_efficient_wq,
413 &sta32x->watchdog_work,
414 round_jiffies_relative(HZ));
415}
416
417static void sta32x_watchdog_start(struct sta32x_priv *sta32x)
418{
419 if (sta32x->pdata->needs_esd_watchdog) {
420 sta32x->shutdown = 0;
421 queue_delayed_work(system_power_efficient_wq,
422 &sta32x->watchdog_work,
423 round_jiffies_relative(HZ));
424 }
425}
426
427static void sta32x_watchdog_stop(struct sta32x_priv *sta32x)
428{
429 if (sta32x->pdata->needs_esd_watchdog) {
430 sta32x->shutdown = 1;
431 cancel_delayed_work_sync(&sta32x->watchdog_work);
432 }
433}
434
435#define SINGLE_COEF(xname, index) \
436{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
437 .info = sta32x_coefficient_info, \
438 .get = sta32x_coefficient_get,\
439 .put = sta32x_coefficient_put, \
440 .private_value = index | (1 << 16) }
441
442#define BIQUAD_COEFS(xname, index) \
443{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
444 .info = sta32x_coefficient_info, \
445 .get = sta32x_coefficient_get,\
446 .put = sta32x_coefficient_put, \
447 .private_value = index | (5 << 16) }
448
449static const struct snd_kcontrol_new sta32x_snd_controls[] = {
450SOC_SINGLE_TLV("Master Volume", STA32X_MVOL, 0, 0xff, 1, mvol_tlv),
451SOC_SINGLE("Master Switch", STA32X_MMUTE, 0, 1, 1),
452SOC_SINGLE("Ch1 Switch", STA32X_MMUTE, 1, 1, 1),
453SOC_SINGLE("Ch2 Switch", STA32X_MMUTE, 2, 1, 1),
454SOC_SINGLE("Ch3 Switch", STA32X_MMUTE, 3, 1, 1),
455SOC_SINGLE_TLV("Ch1 Volume", STA32X_C1VOL, 0, 0xff, 1, chvol_tlv),
456SOC_SINGLE_TLV("Ch2 Volume", STA32X_C2VOL, 0, 0xff, 1, chvol_tlv),
457SOC_SINGLE_TLV("Ch3 Volume", STA32X_C3VOL, 0, 0xff, 1, chvol_tlv),
458SOC_SINGLE("De-emphasis Filter Switch", STA32X_CONFD, STA32X_CONFD_DEMP_SHIFT, 1, 0),
459SOC_ENUM("Compressor/Limiter Switch", sta32x_drc_ac_enum),
460SOC_SINGLE("Miami Mode Switch", STA32X_CONFD, STA32X_CONFD_MME_SHIFT, 1, 0),
461SOC_SINGLE("Zero Cross Switch", STA32X_CONFE, STA32X_CONFE_ZCE_SHIFT, 1, 0),
462SOC_SINGLE("Soft Ramp Switch", STA32X_CONFE, STA32X_CONFE_SVE_SHIFT, 1, 0),
463SOC_SINGLE("Auto-Mute Switch", STA32X_CONFF, STA32X_CONFF_IDE_SHIFT, 1, 0),
464SOC_ENUM("Automode EQ", sta32x_auto_eq_enum),
465SOC_ENUM("Automode GC", sta32x_auto_gc_enum),
466SOC_ENUM("Automode XO", sta32x_auto_xo_enum),
467SOC_ENUM("Preset EQ", sta32x_preset_eq_enum),
468SOC_SINGLE("Ch1 Tone Control Bypass Switch", STA32X_C1CFG, STA32X_CxCFG_TCB_SHIFT, 1, 0),
469SOC_SINGLE("Ch2 Tone Control Bypass Switch", STA32X_C2CFG, STA32X_CxCFG_TCB_SHIFT, 1, 0),
470SOC_SINGLE("Ch1 EQ Bypass Switch", STA32X_C1CFG, STA32X_CxCFG_EQBP_SHIFT, 1, 0),
471SOC_SINGLE("Ch2 EQ Bypass Switch", STA32X_C2CFG, STA32X_CxCFG_EQBP_SHIFT, 1, 0),
472SOC_SINGLE("Ch1 Master Volume Bypass Switch", STA32X_C1CFG, STA32X_CxCFG_VBP_SHIFT, 1, 0),
473SOC_SINGLE("Ch2 Master Volume Bypass Switch", STA32X_C1CFG, STA32X_CxCFG_VBP_SHIFT, 1, 0),
474SOC_SINGLE("Ch3 Master Volume Bypass Switch", STA32X_C1CFG, STA32X_CxCFG_VBP_SHIFT, 1, 0),
475SOC_ENUM("Ch1 Limiter Select", sta32x_limiter_ch1_enum),
476SOC_ENUM("Ch2 Limiter Select", sta32x_limiter_ch2_enum),
477SOC_ENUM("Ch3 Limiter Select", sta32x_limiter_ch3_enum),
478SOC_SINGLE_TLV("Bass Tone Control", STA32X_TONE, STA32X_TONE_BTC_SHIFT, 15, 0, tone_tlv),
479SOC_SINGLE_TLV("Treble Tone Control", STA32X_TONE, STA32X_TONE_TTC_SHIFT, 15, 0, tone_tlv),
480SOC_ENUM("Limiter1 Attack Rate (dB/ms)", sta32x_limiter1_attack_rate_enum),
481SOC_ENUM("Limiter2 Attack Rate (dB/ms)", sta32x_limiter2_attack_rate_enum),
482SOC_ENUM("Limiter1 Release Rate (dB/ms)", sta32x_limiter1_release_rate_enum),
483SOC_ENUM("Limiter2 Release Rate (dB/ms)", sta32x_limiter2_release_rate_enum),
484
485
486
487
488SOC_SINGLE_TLV("Limiter1 Attack Threshold (AC Mode)", STA32X_L1ATRT, STA32X_LxA_SHIFT,
489 16, 0, sta32x_limiter_ac_attack_tlv),
490SOC_SINGLE_TLV("Limiter2 Attack Threshold (AC Mode)", STA32X_L2ATRT, STA32X_LxA_SHIFT,
491 16, 0, sta32x_limiter_ac_attack_tlv),
492SOC_SINGLE_TLV("Limiter1 Release Threshold (AC Mode)", STA32X_L1ATRT, STA32X_LxR_SHIFT,
493 16, 0, sta32x_limiter_ac_release_tlv),
494SOC_SINGLE_TLV("Limiter2 Release Threshold (AC Mode)", STA32X_L2ATRT, STA32X_LxR_SHIFT,
495 16, 0, sta32x_limiter_ac_release_tlv),
496SOC_SINGLE_TLV("Limiter1 Attack Threshold (DRC Mode)", STA32X_L1ATRT, STA32X_LxA_SHIFT,
497 16, 0, sta32x_limiter_drc_attack_tlv),
498SOC_SINGLE_TLV("Limiter2 Attack Threshold (DRC Mode)", STA32X_L2ATRT, STA32X_LxA_SHIFT,
499 16, 0, sta32x_limiter_drc_attack_tlv),
500SOC_SINGLE_TLV("Limiter1 Release Threshold (DRC Mode)", STA32X_L1ATRT, STA32X_LxR_SHIFT,
501 16, 0, sta32x_limiter_drc_release_tlv),
502SOC_SINGLE_TLV("Limiter2 Release Threshold (DRC Mode)", STA32X_L2ATRT, STA32X_LxR_SHIFT,
503 16, 0, sta32x_limiter_drc_release_tlv),
504
505BIQUAD_COEFS("Ch1 - Biquad 1", 0),
506BIQUAD_COEFS("Ch1 - Biquad 2", 5),
507BIQUAD_COEFS("Ch1 - Biquad 3", 10),
508BIQUAD_COEFS("Ch1 - Biquad 4", 15),
509BIQUAD_COEFS("Ch2 - Biquad 1", 20),
510BIQUAD_COEFS("Ch2 - Biquad 2", 25),
511BIQUAD_COEFS("Ch2 - Biquad 3", 30),
512BIQUAD_COEFS("Ch2 - Biquad 4", 35),
513BIQUAD_COEFS("High-pass", 40),
514BIQUAD_COEFS("Low-pass", 45),
515SINGLE_COEF("Ch1 - Prescale", 50),
516SINGLE_COEF("Ch2 - Prescale", 51),
517SINGLE_COEF("Ch1 - Postscale", 52),
518SINGLE_COEF("Ch2 - Postscale", 53),
519SINGLE_COEF("Ch3 - Postscale", 54),
520SINGLE_COEF("Thermal warning - Postscale", 55),
521SINGLE_COEF("Ch1 - Mix 1", 56),
522SINGLE_COEF("Ch1 - Mix 2", 57),
523SINGLE_COEF("Ch2 - Mix 1", 58),
524SINGLE_COEF("Ch2 - Mix 2", 59),
525SINGLE_COEF("Ch3 - Mix 1", 60),
526SINGLE_COEF("Ch3 - Mix 2", 61),
527};
528
529static const struct snd_soc_dapm_widget sta32x_dapm_widgets[] = {
530SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
531SND_SOC_DAPM_OUTPUT("LEFT"),
532SND_SOC_DAPM_OUTPUT("RIGHT"),
533SND_SOC_DAPM_OUTPUT("SUB"),
534};
535
536static const struct snd_soc_dapm_route sta32x_dapm_routes[] = {
537 { "LEFT", NULL, "DAC" },
538 { "RIGHT", NULL, "DAC" },
539 { "SUB", NULL, "DAC" },
540};
541
542
543static struct {
544 int fs;
545 int ir;
546} interpolation_ratios[] = {
547 { 32000, 0 },
548 { 44100, 0 },
549 { 48000, 0 },
550 { 88200, 1 },
551 { 96000, 1 },
552 { 176400, 2 },
553 { 192000, 2 },
554};
555
556
557static int mcs_ratio_table[3][7] = {
558 { 768, 512, 384, 256, 128, 576, 0 },
559 { 384, 256, 192, 128, 64, 0 },
560 { 384, 256, 192, 128, 64, 0 },
561};
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582static int sta32x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
583 int clk_id, unsigned int freq, int dir)
584{
585 struct snd_soc_codec *codec = codec_dai->codec;
586 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
587
588 dev_dbg(codec->dev, "mclk=%u\n", freq);
589 sta32x->mclk = freq;
590
591 return 0;
592}
593
594
595
596
597
598
599
600
601
602static int sta32x_set_dai_fmt(struct snd_soc_dai *codec_dai,
603 unsigned int fmt)
604{
605 struct snd_soc_codec *codec = codec_dai->codec;
606 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
607 u8 confb = 0;
608
609 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
610 case SND_SOC_DAIFMT_CBS_CFS:
611 break;
612 default:
613 return -EINVAL;
614 }
615
616 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
617 case SND_SOC_DAIFMT_I2S:
618 case SND_SOC_DAIFMT_RIGHT_J:
619 case SND_SOC_DAIFMT_LEFT_J:
620 sta32x->format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
621 break;
622 default:
623 return -EINVAL;
624 }
625
626 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
627 case SND_SOC_DAIFMT_NB_NF:
628 confb |= STA32X_CONFB_C2IM;
629 break;
630 case SND_SOC_DAIFMT_NB_IF:
631 confb |= STA32X_CONFB_C1IM;
632 break;
633 default:
634 return -EINVAL;
635 }
636
637 return regmap_update_bits(sta32x->regmap, STA32X_CONFB,
638 STA32X_CONFB_C1IM | STA32X_CONFB_C2IM, confb);
639}
640
641
642
643
644
645
646
647
648
649
650static int sta32x_hw_params(struct snd_pcm_substream *substream,
651 struct snd_pcm_hw_params *params,
652 struct snd_soc_dai *dai)
653{
654 struct snd_soc_codec *codec = dai->codec;
655 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
656 int i, mcs = -EINVAL, ir = -EINVAL;
657 unsigned int confa, confb;
658 unsigned int rate, ratio;
659 int ret;
660
661 if (!sta32x->mclk) {
662 dev_err(codec->dev,
663 "sta32x->mclk is unset. Unable to determine ratio\n");
664 return -EIO;
665 }
666
667 rate = params_rate(params);
668 ratio = sta32x->mclk / rate;
669 dev_dbg(codec->dev, "rate: %u, ratio: %u\n", rate, ratio);
670
671 for (i = 0; i < ARRAY_SIZE(interpolation_ratios); i++) {
672 if (interpolation_ratios[i].fs == rate) {
673 ir = interpolation_ratios[i].ir;
674 break;
675 }
676 }
677
678 if (ir < 0) {
679 dev_err(codec->dev, "Unsupported samplerate: %u\n", rate);
680 return -EINVAL;
681 }
682
683 for (i = 0; i < 6; i++) {
684 if (mcs_ratio_table[ir][i] == ratio) {
685 mcs = i;
686 break;
687 }
688 }
689
690 if (mcs < 0) {
691 dev_err(codec->dev, "Unresolvable ratio: %u\n", ratio);
692 return -EINVAL;
693 }
694
695 confa = (ir << STA32X_CONFA_IR_SHIFT) |
696 (mcs << STA32X_CONFA_MCS_SHIFT);
697 confb = 0;
698
699 switch (params_width(params)) {
700 case 24:
701 dev_dbg(codec->dev, "24bit\n");
702
703 case 32:
704 dev_dbg(codec->dev, "24bit or 32bit\n");
705 switch (sta32x->format) {
706 case SND_SOC_DAIFMT_I2S:
707 confb |= 0x0;
708 break;
709 case SND_SOC_DAIFMT_LEFT_J:
710 confb |= 0x1;
711 break;
712 case SND_SOC_DAIFMT_RIGHT_J:
713 confb |= 0x2;
714 break;
715 }
716
717 break;
718 case 20:
719 dev_dbg(codec->dev, "20bit\n");
720 switch (sta32x->format) {
721 case SND_SOC_DAIFMT_I2S:
722 confb |= 0x4;
723 break;
724 case SND_SOC_DAIFMT_LEFT_J:
725 confb |= 0x5;
726 break;
727 case SND_SOC_DAIFMT_RIGHT_J:
728 confb |= 0x6;
729 break;
730 }
731
732 break;
733 case 18:
734 dev_dbg(codec->dev, "18bit\n");
735 switch (sta32x->format) {
736 case SND_SOC_DAIFMT_I2S:
737 confb |= 0x8;
738 break;
739 case SND_SOC_DAIFMT_LEFT_J:
740 confb |= 0x9;
741 break;
742 case SND_SOC_DAIFMT_RIGHT_J:
743 confb |= 0xa;
744 break;
745 }
746
747 break;
748 case 16:
749 dev_dbg(codec->dev, "16bit\n");
750 switch (sta32x->format) {
751 case SND_SOC_DAIFMT_I2S:
752 confb |= 0x0;
753 break;
754 case SND_SOC_DAIFMT_LEFT_J:
755 confb |= 0xd;
756 break;
757 case SND_SOC_DAIFMT_RIGHT_J:
758 confb |= 0xe;
759 break;
760 }
761
762 break;
763 default:
764 return -EINVAL;
765 }
766
767 ret = regmap_update_bits(sta32x->regmap, STA32X_CONFA,
768 STA32X_CONFA_MCS_MASK | STA32X_CONFA_IR_MASK,
769 confa);
770 if (ret < 0)
771 return ret;
772
773 ret = regmap_update_bits(sta32x->regmap, STA32X_CONFB,
774 STA32X_CONFB_SAI_MASK | STA32X_CONFB_SAIFB,
775 confb);
776 if (ret < 0)
777 return ret;
778
779 return 0;
780}
781
782static int sta32x_startup_sequence(struct sta32x_priv *sta32x)
783{
784 if (sta32x->gpiod_nreset) {
785 gpiod_set_value(sta32x->gpiod_nreset, 0);
786 mdelay(1);
787 gpiod_set_value(sta32x->gpiod_nreset, 1);
788 mdelay(1);
789 }
790
791 return 0;
792}
793
794
795
796
797
798
799
800
801
802
803static int sta32x_set_bias_level(struct snd_soc_codec *codec,
804 enum snd_soc_bias_level level)
805{
806 int ret;
807 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
808
809 dev_dbg(codec->dev, "level = %d\n", level);
810 switch (level) {
811 case SND_SOC_BIAS_ON:
812 break;
813
814 case SND_SOC_BIAS_PREPARE:
815
816 regmap_update_bits(sta32x->regmap, STA32X_CONFF,
817 STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
818 STA32X_CONFF_PWDN | STA32X_CONFF_EAPD);
819 break;
820
821 case SND_SOC_BIAS_STANDBY:
822 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
823 ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
824 sta32x->supplies);
825 if (ret != 0) {
826 dev_err(codec->dev,
827 "Failed to enable supplies: %d\n", ret);
828 return ret;
829 }
830
831 sta32x_startup_sequence(sta32x);
832 sta32x_cache_sync(codec);
833 sta32x_watchdog_start(sta32x);
834 }
835
836
837 regmap_update_bits(sta32x->regmap, STA32X_CONFF,
838 STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
839 0);
840
841 break;
842
843 case SND_SOC_BIAS_OFF:
844
845 regmap_update_bits(sta32x->regmap, STA32X_CONFF,
846 STA32X_CONFF_PWDN | STA32X_CONFF_EAPD, 0);
847 msleep(300);
848 sta32x_watchdog_stop(sta32x);
849
850 if (sta32x->gpiod_nreset)
851 gpiod_set_value(sta32x->gpiod_nreset, 0);
852
853 regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies),
854 sta32x->supplies);
855 break;
856 }
857 return 0;
858}
859
860static const struct snd_soc_dai_ops sta32x_dai_ops = {
861 .hw_params = sta32x_hw_params,
862 .set_sysclk = sta32x_set_dai_sysclk,
863 .set_fmt = sta32x_set_dai_fmt,
864};
865
866static struct snd_soc_dai_driver sta32x_dai = {
867 .name = "sta32x-hifi",
868 .playback = {
869 .stream_name = "Playback",
870 .channels_min = 2,
871 .channels_max = 2,
872 .rates = STA32X_RATES,
873 .formats = STA32X_FORMATS,
874 },
875 .ops = &sta32x_dai_ops,
876};
877
878static int sta32x_probe(struct snd_soc_codec *codec)
879{
880 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
881 struct sta32x_platform_data *pdata = sta32x->pdata;
882 int i, ret = 0, thermal = 0;
883 ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
884 sta32x->supplies);
885 if (ret != 0) {
886 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
887 return ret;
888 }
889
890 ret = sta32x_startup_sequence(sta32x);
891 if (ret < 0) {
892 dev_err(codec->dev, "Failed to startup device\n");
893 return ret;
894 }
895
896
897 if (!pdata->thermal_warning_recovery)
898 thermal |= STA32X_CONFA_TWAB;
899 if (!pdata->thermal_warning_adjustment)
900 thermal |= STA32X_CONFA_TWRB;
901 if (!pdata->fault_detect_recovery)
902 thermal |= STA32X_CONFA_FDRB;
903 regmap_update_bits(sta32x->regmap, STA32X_CONFA,
904 STA32X_CONFA_TWAB | STA32X_CONFA_TWRB |
905 STA32X_CONFA_FDRB,
906 thermal);
907
908
909 regmap_update_bits(sta32x->regmap, STA32X_CONFC,
910 STA32X_CONFC_CSZ_MASK,
911 pdata->drop_compensation_ns
912 << STA32X_CONFC_CSZ_SHIFT);
913
914
915 regmap_update_bits(sta32x->regmap, STA32X_CONFE,
916 STA32X_CONFE_MPCV,
917 pdata->max_power_use_mpcc ?
918 STA32X_CONFE_MPCV : 0);
919 regmap_update_bits(sta32x->regmap, STA32X_CONFE,
920 STA32X_CONFE_MPC,
921 pdata->max_power_correction ?
922 STA32X_CONFE_MPC : 0);
923 regmap_update_bits(sta32x->regmap, STA32X_CONFE,
924 STA32X_CONFE_AME,
925 pdata->am_reduction_mode ?
926 STA32X_CONFE_AME : 0);
927 regmap_update_bits(sta32x->regmap, STA32X_CONFE,
928 STA32X_CONFE_PWMS,
929 pdata->odd_pwm_speed_mode ?
930 STA32X_CONFE_PWMS : 0);
931
932
933 regmap_update_bits(sta32x->regmap, STA32X_CONFF,
934 STA32X_CONFF_IDE,
935 pdata->invalid_input_detect_mute ?
936 STA32X_CONFF_IDE : 0);
937
938
939 regmap_update_bits(sta32x->regmap, STA32X_CONFF,
940 STA32X_CONFF_OCFG_MASK,
941 pdata->output_conf
942 << STA32X_CONFF_OCFG_SHIFT);
943
944
945 regmap_update_bits(sta32x->regmap, STA32X_C1CFG,
946 STA32X_CxCFG_OM_MASK,
947 pdata->ch1_output_mapping
948 << STA32X_CxCFG_OM_SHIFT);
949 regmap_update_bits(sta32x->regmap, STA32X_C2CFG,
950 STA32X_CxCFG_OM_MASK,
951 pdata->ch2_output_mapping
952 << STA32X_CxCFG_OM_SHIFT);
953 regmap_update_bits(sta32x->regmap, STA32X_C3CFG,
954 STA32X_CxCFG_OM_MASK,
955 pdata->ch3_output_mapping
956 << STA32X_CxCFG_OM_SHIFT);
957
958
959 for (i = 4; i <= 49; i += 5)
960 sta32x->coef_shadow[i] = 0x400000;
961 for (i = 50; i <= 54; i++)
962 sta32x->coef_shadow[i] = 0x7fffff;
963 sta32x->coef_shadow[55] = 0x5a9df7;
964 sta32x->coef_shadow[56] = 0x7fffff;
965 sta32x->coef_shadow[59] = 0x7fffff;
966 sta32x->coef_shadow[60] = 0x400000;
967 sta32x->coef_shadow[61] = 0x400000;
968
969 if (sta32x->pdata->needs_esd_watchdog)
970 INIT_DELAYED_WORK(&sta32x->watchdog_work, sta32x_watchdog);
971
972 snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
973
974 regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
975
976 return 0;
977}
978
979static int sta32x_remove(struct snd_soc_codec *codec)
980{
981 struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
982
983 sta32x_watchdog_stop(sta32x);
984 regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
985
986 return 0;
987}
988
989static const struct snd_soc_codec_driver sta32x_codec = {
990 .probe = sta32x_probe,
991 .remove = sta32x_remove,
992 .set_bias_level = sta32x_set_bias_level,
993 .suspend_bias_off = true,
994 .component_driver = {
995 .controls = sta32x_snd_controls,
996 .num_controls = ARRAY_SIZE(sta32x_snd_controls),
997 .dapm_widgets = sta32x_dapm_widgets,
998 .num_dapm_widgets = ARRAY_SIZE(sta32x_dapm_widgets),
999 .dapm_routes = sta32x_dapm_routes,
1000 .num_dapm_routes = ARRAY_SIZE(sta32x_dapm_routes),
1001 },
1002};
1003
1004static const struct regmap_config sta32x_regmap = {
1005 .reg_bits = 8,
1006 .val_bits = 8,
1007 .max_register = STA32X_FDRC2,
1008 .reg_defaults = sta32x_regs,
1009 .num_reg_defaults = ARRAY_SIZE(sta32x_regs),
1010 .cache_type = REGCACHE_RBTREE,
1011 .wr_table = &sta32x_write_regs,
1012 .rd_table = &sta32x_read_regs,
1013 .volatile_table = &sta32x_volatile_regs,
1014};
1015
1016#ifdef CONFIG_OF
1017static const struct of_device_id st32x_dt_ids[] = {
1018 { .compatible = "st,sta32x", },
1019 { }
1020};
1021MODULE_DEVICE_TABLE(of, st32x_dt_ids);
1022
1023static int sta32x_probe_dt(struct device *dev, struct sta32x_priv *sta32x)
1024{
1025 struct device_node *np = dev->of_node;
1026 struct sta32x_platform_data *pdata;
1027 u16 tmp;
1028
1029 pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
1030 if (!pdata)
1031 return -ENOMEM;
1032
1033 of_property_read_u8(np, "st,output-conf",
1034 &pdata->output_conf);
1035 of_property_read_u8(np, "st,ch1-output-mapping",
1036 &pdata->ch1_output_mapping);
1037 of_property_read_u8(np, "st,ch2-output-mapping",
1038 &pdata->ch2_output_mapping);
1039 of_property_read_u8(np, "st,ch3-output-mapping",
1040 &pdata->ch3_output_mapping);
1041
1042 if (of_get_property(np, "st,thermal-warning-recovery", NULL))
1043 pdata->thermal_warning_recovery = 1;
1044 if (of_get_property(np, "st,thermal-warning-adjustment", NULL))
1045 pdata->thermal_warning_adjustment = 1;
1046 if (of_get_property(np, "st,needs_esd_watchdog", NULL))
1047 pdata->needs_esd_watchdog = 1;
1048
1049 tmp = 140;
1050 of_property_read_u16(np, "st,drop-compensation-ns", &tmp);
1051 pdata->drop_compensation_ns = clamp_t(u16, tmp, 0, 300) / 20;
1052
1053
1054 if (of_get_property(np, "st,max-power-use-mpcc", NULL))
1055 pdata->max_power_use_mpcc = 1;
1056
1057 if (of_get_property(np, "st,max-power-correction", NULL))
1058 pdata->max_power_correction = 1;
1059
1060 if (of_get_property(np, "st,am-reduction-mode", NULL))
1061 pdata->am_reduction_mode = 1;
1062
1063 if (of_get_property(np, "st,odd-pwm-speed-mode", NULL))
1064 pdata->odd_pwm_speed_mode = 1;
1065
1066
1067 if (of_get_property(np, "st,invalid-input-detect-mute", NULL))
1068 pdata->invalid_input_detect_mute = 1;
1069
1070 sta32x->pdata = pdata;
1071
1072 return 0;
1073}
1074#endif
1075
1076static int sta32x_i2c_probe(struct i2c_client *i2c,
1077 const struct i2c_device_id *id)
1078{
1079 struct device *dev = &i2c->dev;
1080 struct sta32x_priv *sta32x;
1081 int ret, i;
1082
1083 sta32x = devm_kzalloc(&i2c->dev, sizeof(struct sta32x_priv),
1084 GFP_KERNEL);
1085 if (!sta32x)
1086 return -ENOMEM;
1087
1088 mutex_init(&sta32x->coeff_lock);
1089 sta32x->pdata = dev_get_platdata(dev);
1090
1091#ifdef CONFIG_OF
1092 if (dev->of_node) {
1093 ret = sta32x_probe_dt(dev, sta32x);
1094 if (ret < 0)
1095 return ret;
1096 }
1097#endif
1098
1099
1100 sta32x->gpiod_nreset = devm_gpiod_get_optional(dev, "reset",
1101 GPIOD_OUT_LOW);
1102 if (IS_ERR(sta32x->gpiod_nreset))
1103 return PTR_ERR(sta32x->gpiod_nreset);
1104
1105
1106 for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)
1107 sta32x->supplies[i].supply = sta32x_supply_names[i];
1108
1109 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(sta32x->supplies),
1110 sta32x->supplies);
1111 if (ret != 0) {
1112 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
1113 return ret;
1114 }
1115
1116 sta32x->regmap = devm_regmap_init_i2c(i2c, &sta32x_regmap);
1117 if (IS_ERR(sta32x->regmap)) {
1118 ret = PTR_ERR(sta32x->regmap);
1119 dev_err(dev, "Failed to init regmap: %d\n", ret);
1120 return ret;
1121 }
1122
1123 i2c_set_clientdata(i2c, sta32x);
1124
1125 ret = snd_soc_register_codec(dev, &sta32x_codec, &sta32x_dai, 1);
1126 if (ret < 0)
1127 dev_err(dev, "Failed to register codec (%d)\n", ret);
1128
1129 return ret;
1130}
1131
1132static int sta32x_i2c_remove(struct i2c_client *client)
1133{
1134 snd_soc_unregister_codec(&client->dev);
1135 return 0;
1136}
1137
1138static const struct i2c_device_id sta32x_i2c_id[] = {
1139 { "sta326", 0 },
1140 { "sta328", 0 },
1141 { "sta329", 0 },
1142 { }
1143};
1144MODULE_DEVICE_TABLE(i2c, sta32x_i2c_id);
1145
1146static struct i2c_driver sta32x_i2c_driver = {
1147 .driver = {
1148 .name = "sta32x",
1149 .of_match_table = of_match_ptr(st32x_dt_ids),
1150 },
1151 .probe = sta32x_i2c_probe,
1152 .remove = sta32x_i2c_remove,
1153 .id_table = sta32x_i2c_id,
1154};
1155
1156module_i2c_driver(sta32x_i2c_driver);
1157
1158MODULE_DESCRIPTION("ASoC STA32X driver");
1159MODULE_AUTHOR("Johannes Stezenbach <js@sig21.net>");
1160MODULE_LICENSE("GPL");
1161
