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13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/init.h>
16#include <linux/delay.h>
17#include <linux/pm.h>
18#include <linux/clk.h>
19#include <linux/i2c.h>
20#include <linux/slab.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25#include <sound/initval.h>
26#include <sound/tlv.h>
27#include <sound/wm8960.h>
28
29#include "wm8960.h"
30
31
32#define WM8960_VMID_MASK 0x180
33#define WM8960_VREF 0x40
34
35
36#define WM8960_PWR2_LOUT1 0x40
37#define WM8960_PWR2_ROUT1 0x20
38#define WM8960_PWR2_OUT3 0x02
39
40
41#define WM8960_POBCTRL 0x80
42#define WM8960_BUFDCOPEN 0x10
43#define WM8960_BUFIOEN 0x08
44#define WM8960_SOFT_ST 0x04
45#define WM8960_HPSTBY 0x01
46
47
48#define WM8960_DISOP 0x40
49#define WM8960_DRES_MASK 0x30
50
51static bool is_pll_freq_available(unsigned int source, unsigned int target);
52static int wm8960_set_pll(struct snd_soc_component *component,
53 unsigned int freq_in, unsigned int freq_out);
54
55
56
57
58
59static const struct reg_default wm8960_reg_defaults[] = {
60 { 0x0, 0x00a7 },
61 { 0x1, 0x00a7 },
62 { 0x2, 0x0000 },
63 { 0x3, 0x0000 },
64 { 0x4, 0x0000 },
65 { 0x5, 0x0008 },
66 { 0x6, 0x0000 },
67 { 0x7, 0x000a },
68 { 0x8, 0x01c0 },
69 { 0x9, 0x0000 },
70 { 0xa, 0x00ff },
71 { 0xb, 0x00ff },
72
73 { 0x10, 0x0000 },
74 { 0x11, 0x007b },
75 { 0x12, 0x0100 },
76 { 0x13, 0x0032 },
77 { 0x14, 0x0000 },
78 { 0x15, 0x00c3 },
79 { 0x16, 0x00c3 },
80 { 0x17, 0x01c0 },
81 { 0x18, 0x0000 },
82 { 0x19, 0x0000 },
83 { 0x1a, 0x0000 },
84 { 0x1b, 0x0000 },
85 { 0x1c, 0x0000 },
86 { 0x1d, 0x0000 },
87
88 { 0x20, 0x0100 },
89 { 0x21, 0x0100 },
90 { 0x22, 0x0050 },
91
92 { 0x25, 0x0050 },
93 { 0x26, 0x0000 },
94 { 0x27, 0x0000 },
95 { 0x28, 0x0000 },
96 { 0x29, 0x0000 },
97 { 0x2a, 0x0040 },
98 { 0x2b, 0x0000 },
99 { 0x2c, 0x0000 },
100 { 0x2d, 0x0050 },
101 { 0x2e, 0x0050 },
102 { 0x2f, 0x0000 },
103 { 0x30, 0x0002 },
104 { 0x31, 0x0037 },
105
106 { 0x33, 0x0080 },
107 { 0x34, 0x0008 },
108 { 0x35, 0x0031 },
109 { 0x36, 0x0026 },
110 { 0x37, 0x00e9 },
111};
112
113static bool wm8960_volatile(struct device *dev, unsigned int reg)
114{
115 switch (reg) {
116 case WM8960_RESET:
117 return true;
118 default:
119 return false;
120 }
121}
122
123struct wm8960_priv {
124 struct clk *mclk;
125 struct regmap *regmap;
126 int (*set_bias_level)(struct snd_soc_component *,
127 enum snd_soc_bias_level level);
128 struct snd_soc_dapm_widget *lout1;
129 struct snd_soc_dapm_widget *rout1;
130 struct snd_soc_dapm_widget *out3;
131 bool deemph;
132 int lrclk;
133 int bclk;
134 int sysclk;
135 int clk_id;
136 int freq_in;
137 bool is_stream_in_use[2];
138 struct wm8960_data pdata;
139};
140
141#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
142
143
144static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
145 "Right Inverted", "Stereo Inversion"};
146static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
147static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
148static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
149static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
150static const char *wm8960_adc_data_output_sel[] = {
151 "Left Data = Left ADC; Right Data = Right ADC",
152 "Left Data = Left ADC; Right Data = Left ADC",
153 "Left Data = Right ADC; Right Data = Right ADC",
154 "Left Data = Right ADC; Right Data = Left ADC",
155};
156static const char *wm8960_dmonomix[] = {"Stereo", "Mono"};
157
158static const struct soc_enum wm8960_enum[] = {
159 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
160 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
161 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
162 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
163 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
164 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
165 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
166 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
167};
168
169static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
170
171static int wm8960_set_deemph(struct snd_soc_component *component)
172{
173 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
174 int val, i, best;
175
176
177
178
179 if (wm8960->deemph) {
180 best = 1;
181 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
182 if (abs(deemph_settings[i] - wm8960->lrclk) <
183 abs(deemph_settings[best] - wm8960->lrclk))
184 best = i;
185 }
186
187 val = best << 1;
188 } else {
189 val = 0;
190 }
191
192 dev_dbg(component->dev, "Set deemphasis %d\n", val);
193
194 return snd_soc_component_update_bits(component, WM8960_DACCTL1,
195 0x6, val);
196}
197
198static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
200{
201 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
202 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
203
204 ucontrol->value.integer.value[0] = wm8960->deemph;
205 return 0;
206}
207
208static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
209 struct snd_ctl_elem_value *ucontrol)
210{
211 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
212 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
213 unsigned int deemph = ucontrol->value.integer.value[0];
214
215 if (deemph > 1)
216 return -EINVAL;
217
218 wm8960->deemph = deemph;
219
220 return wm8960_set_deemph(component);
221}
222
223static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
224static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
225static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
226static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
227static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
228static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
229static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv,
230 0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0),
231 2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0),
232);
233
234static const struct snd_kcontrol_new wm8960_snd_controls[] = {
235SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
236 0, 63, 0, inpga_tlv),
237SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
238 6, 1, 0),
239SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
240 7, 1, 1),
241
242SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
243 WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
244SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
245 WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
246SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
247 WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
248SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
249 WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
250SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
251 WM8960_RINPATH, 4, 3, 0, micboost_tlv),
252SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
253 WM8960_LINPATH, 4, 3, 0, micboost_tlv),
254
255SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
256 0, 255, 0, dac_tlv),
257
258SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
259 0, 127, 0, out_tlv),
260SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
261 7, 1, 0),
262
263SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
264 0, 127, 0, out_tlv),
265SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
266 7, 1, 0),
267SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
268SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
269
270SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
271SOC_ENUM("ADC Polarity", wm8960_enum[0]),
272SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
273
274SOC_ENUM("DAC Polarity", wm8960_enum[1]),
275SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
276 wm8960_get_deemph, wm8960_put_deemph),
277
278SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
279SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
280SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
281SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
282
283SOC_ENUM("ALC Function", wm8960_enum[4]),
284SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
285SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
286SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
287SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
288SOC_ENUM("ALC Mode", wm8960_enum[5]),
289SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
290SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
291
292SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
293SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
294
295SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
296 0, 255, 0, adc_tlv),
297
298SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
299 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
300SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
301 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
302SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
303 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
304SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
305 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
306
307SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
308SOC_ENUM("DAC Mono Mix", wm8960_enum[7]),
309};
310
311static const struct snd_kcontrol_new wm8960_lin_boost[] = {
312SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
313SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
314SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
315};
316
317static const struct snd_kcontrol_new wm8960_lin[] = {
318SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
319};
320
321static const struct snd_kcontrol_new wm8960_rin_boost[] = {
322SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
323SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
324SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
325};
326
327static const struct snd_kcontrol_new wm8960_rin[] = {
328SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
329};
330
331static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
332SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
333SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
334SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
335};
336
337static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
338SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
339SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
340SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
341};
342
343static const struct snd_kcontrol_new wm8960_mono_out[] = {
344SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
345SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
346};
347
348static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
349SND_SOC_DAPM_INPUT("LINPUT1"),
350SND_SOC_DAPM_INPUT("RINPUT1"),
351SND_SOC_DAPM_INPUT("LINPUT2"),
352SND_SOC_DAPM_INPUT("RINPUT2"),
353SND_SOC_DAPM_INPUT("LINPUT3"),
354SND_SOC_DAPM_INPUT("RINPUT3"),
355
356SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
357
358SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
359 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
360SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
361 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
362
363SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
364 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
365SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
366 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
367
368SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
369SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
370
371SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
372SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
373
374SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
375 &wm8960_loutput_mixer[0],
376 ARRAY_SIZE(wm8960_loutput_mixer)),
377SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
378 &wm8960_routput_mixer[0],
379 ARRAY_SIZE(wm8960_routput_mixer)),
380
381SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
382SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
383
384SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
385SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
386
387SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
388SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
389
390SND_SOC_DAPM_OUTPUT("SPK_LP"),
391SND_SOC_DAPM_OUTPUT("SPK_LN"),
392SND_SOC_DAPM_OUTPUT("HP_L"),
393SND_SOC_DAPM_OUTPUT("HP_R"),
394SND_SOC_DAPM_OUTPUT("SPK_RP"),
395SND_SOC_DAPM_OUTPUT("SPK_RN"),
396SND_SOC_DAPM_OUTPUT("OUT3"),
397};
398
399static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
400SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
401 &wm8960_mono_out[0],
402 ARRAY_SIZE(wm8960_mono_out)),
403};
404
405
406static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
407SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
408};
409
410static const struct snd_soc_dapm_route audio_paths[] = {
411 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
412 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
413 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
414
415 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer" },
416 { "Left Input Mixer", "Boost Switch", "LINPUT1" },
417 { "Left Input Mixer", NULL, "LINPUT2" },
418 { "Left Input Mixer", NULL, "LINPUT3" },
419
420 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
421 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
422 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
423
424 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer" },
425 { "Right Input Mixer", "Boost Switch", "RINPUT1" },
426 { "Right Input Mixer", NULL, "RINPUT2" },
427 { "Right Input Mixer", NULL, "RINPUT3" },
428
429 { "Left ADC", NULL, "Left Input Mixer" },
430 { "Right ADC", NULL, "Right Input Mixer" },
431
432 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
433 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" },
434 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
435
436 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
437 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" },
438 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
439
440 { "LOUT1 PGA", NULL, "Left Output Mixer" },
441 { "ROUT1 PGA", NULL, "Right Output Mixer" },
442
443 { "HP_L", NULL, "LOUT1 PGA" },
444 { "HP_R", NULL, "ROUT1 PGA" },
445
446 { "Left Speaker PGA", NULL, "Left Output Mixer" },
447 { "Right Speaker PGA", NULL, "Right Output Mixer" },
448
449 { "Left Speaker Output", NULL, "Left Speaker PGA" },
450 { "Right Speaker Output", NULL, "Right Speaker PGA" },
451
452 { "SPK_LN", NULL, "Left Speaker Output" },
453 { "SPK_LP", NULL, "Left Speaker Output" },
454 { "SPK_RN", NULL, "Right Speaker Output" },
455 { "SPK_RP", NULL, "Right Speaker Output" },
456};
457
458static const struct snd_soc_dapm_route audio_paths_out3[] = {
459 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
460 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
461
462 { "OUT3", NULL, "Mono Output Mixer", }
463};
464
465static const struct snd_soc_dapm_route audio_paths_capless[] = {
466 { "HP_L", NULL, "OUT3 VMID" },
467 { "HP_R", NULL, "OUT3 VMID" },
468
469 { "OUT3 VMID", NULL, "Left Output Mixer" },
470 { "OUT3 VMID", NULL, "Right Output Mixer" },
471};
472
473static int wm8960_add_widgets(struct snd_soc_component *component)
474{
475 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
476 struct wm8960_data *pdata = &wm8960->pdata;
477 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
478 struct snd_soc_dapm_widget *w;
479
480 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
481 ARRAY_SIZE(wm8960_dapm_widgets));
482
483 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
484
485
486
487
488 if (pdata && pdata->capless) {
489 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
490 ARRAY_SIZE(wm8960_dapm_widgets_capless));
491
492 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
493 ARRAY_SIZE(audio_paths_capless));
494 } else {
495 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
496 ARRAY_SIZE(wm8960_dapm_widgets_out3));
497
498 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
499 ARRAY_SIZE(audio_paths_out3));
500 }
501
502
503
504
505
506
507 list_for_each_entry(w, &component->card->widgets, list) {
508 if (w->dapm != dapm)
509 continue;
510 if (strcmp(w->name, "LOUT1 PGA") == 0)
511 wm8960->lout1 = w;
512 if (strcmp(w->name, "ROUT1 PGA") == 0)
513 wm8960->rout1 = w;
514 if (strcmp(w->name, "OUT3 VMID") == 0)
515 wm8960->out3 = w;
516 }
517
518 return 0;
519}
520
521static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
522 unsigned int fmt)
523{
524 struct snd_soc_component *component = codec_dai->component;
525 u16 iface = 0;
526
527
528 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
529 case SND_SOC_DAIFMT_CBM_CFM:
530 iface |= 0x0040;
531 break;
532 case SND_SOC_DAIFMT_CBS_CFS:
533 break;
534 default:
535 return -EINVAL;
536 }
537
538
539 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
540 case SND_SOC_DAIFMT_I2S:
541 iface |= 0x0002;
542 break;
543 case SND_SOC_DAIFMT_RIGHT_J:
544 break;
545 case SND_SOC_DAIFMT_LEFT_J:
546 iface |= 0x0001;
547 break;
548 case SND_SOC_DAIFMT_DSP_A:
549 iface |= 0x0003;
550 break;
551 case SND_SOC_DAIFMT_DSP_B:
552 iface |= 0x0013;
553 break;
554 default:
555 return -EINVAL;
556 }
557
558
559 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
560 case SND_SOC_DAIFMT_NB_NF:
561 break;
562 case SND_SOC_DAIFMT_IB_IF:
563 iface |= 0x0090;
564 break;
565 case SND_SOC_DAIFMT_IB_NF:
566 iface |= 0x0080;
567 break;
568 case SND_SOC_DAIFMT_NB_IF:
569 iface |= 0x0010;
570 break;
571 default:
572 return -EINVAL;
573 }
574
575
576 snd_soc_component_write(component, WM8960_IFACE1, iface);
577 return 0;
578}
579
580static struct {
581 int rate;
582 unsigned int val;
583} alc_rates[] = {
584 { 48000, 0 },
585 { 44100, 0 },
586 { 32000, 1 },
587 { 22050, 2 },
588 { 24000, 2 },
589 { 16000, 3 },
590 { 11025, 4 },
591 { 12000, 4 },
592 { 8000, 5 },
593};
594
595
596static const int sysclk_divs[] = { 1, -1, 2, -1 };
597
598
599static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
600
601
602static const int bclk_divs[] = {
603 10, 15, 20, 30, 40, 55, 60, 80, 110,
604 120, 160, 220, 240, 320, 320, 320
605};
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629static
630int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
631 int *sysclk_idx, int *dac_idx, int *bclk_idx)
632{
633 int sysclk, bclk, lrclk;
634 int i, j, k;
635 int diff, closest = mclk;
636
637
638 *bclk_idx = -1;
639
640 bclk = wm8960->bclk;
641 lrclk = wm8960->lrclk;
642
643
644 for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
645 if (sysclk_divs[i] == -1)
646 continue;
647 sysclk = mclk / sysclk_divs[i];
648 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
649 if (sysclk != dac_divs[j] * lrclk)
650 continue;
651 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
652 diff = sysclk - bclk * bclk_divs[k] / 10;
653 if (diff == 0) {
654 *sysclk_idx = i;
655 *dac_idx = j;
656 *bclk_idx = k;
657 break;
658 }
659 if (diff > 0 && closest > diff) {
660 *sysclk_idx = i;
661 *dac_idx = j;
662 *bclk_idx = k;
663 closest = diff;
664 }
665 }
666 if (k != ARRAY_SIZE(bclk_divs))
667 break;
668 }
669 if (j != ARRAY_SIZE(dac_divs))
670 break;
671 }
672 return *bclk_idx;
673}
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697static
698int wm8960_configure_pll(struct snd_soc_component *component, int freq_in,
699 int *sysclk_idx, int *dac_idx, int *bclk_idx)
700{
701 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
702 int sysclk, bclk, lrclk, freq_out;
703 int diff, closest, best_freq_out;
704 int i, j, k;
705
706 bclk = wm8960->bclk;
707 lrclk = wm8960->lrclk;
708 closest = freq_in;
709
710 best_freq_out = -EINVAL;
711 *sysclk_idx = *dac_idx = *bclk_idx = -1;
712
713 for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
714 if (sysclk_divs[i] == -1)
715 continue;
716 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
717 sysclk = lrclk * dac_divs[j];
718 freq_out = sysclk * sysclk_divs[i];
719
720 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
721 if (!is_pll_freq_available(freq_in, freq_out))
722 continue;
723
724 diff = sysclk - bclk * bclk_divs[k] / 10;
725 if (diff == 0) {
726 *sysclk_idx = i;
727 *dac_idx = j;
728 *bclk_idx = k;
729 return freq_out;
730 }
731 if (diff > 0 && closest > diff) {
732 *sysclk_idx = i;
733 *dac_idx = j;
734 *bclk_idx = k;
735 closest = diff;
736 best_freq_out = freq_out;
737 }
738 }
739 }
740 }
741
742 return best_freq_out;
743}
744static int wm8960_configure_clocking(struct snd_soc_component *component)
745{
746 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
747 int freq_out, freq_in;
748 u16 iface1 = snd_soc_component_read32(component, WM8960_IFACE1);
749 int i, j, k;
750 int ret;
751
752 if (!(iface1 & (1<<6))) {
753 dev_dbg(component->dev,
754 "Codec is slave mode, no need to configure clock\n");
755 return 0;
756 }
757
758 if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
759 dev_err(component->dev, "No MCLK configured\n");
760 return -EINVAL;
761 }
762
763 freq_in = wm8960->freq_in;
764
765
766
767
768
769
770 if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {
771
772 wm8960_set_pll(component, 0, 0);
773 freq_out = freq_in;
774 } else if (wm8960->sysclk) {
775 freq_out = wm8960->sysclk;
776 } else {
777 dev_err(component->dev, "No SYSCLK configured\n");
778 return -EINVAL;
779 }
780
781 if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
782 ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k);
783 if (ret >= 0) {
784 goto configure_clock;
785 } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
786 dev_err(component->dev, "failed to configure clock\n");
787 return -EINVAL;
788 }
789 }
790
791 freq_out = wm8960_configure_pll(component, freq_in, &i, &j, &k);
792 if (freq_out < 0) {
793 dev_err(component->dev, "failed to configure clock via PLL\n");
794 return freq_out;
795 }
796 wm8960_set_pll(component, freq_in, freq_out);
797
798configure_clock:
799
800 snd_soc_component_update_bits(component, WM8960_CLOCK1, 3 << 1, i << 1);
801
802
803 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 3, j << 3);
804 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 6, j << 6);
805
806
807 snd_soc_component_update_bits(component, WM8960_CLOCK2, 0xf, k);
808
809 return 0;
810}
811
812static int wm8960_hw_params(struct snd_pcm_substream *substream,
813 struct snd_pcm_hw_params *params,
814 struct snd_soc_dai *dai)
815{
816 struct snd_soc_component *component = dai->component;
817 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
818 u16 iface = snd_soc_component_read32(component, WM8960_IFACE1) & 0xfff3;
819 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
820 int i;
821
822 wm8960->bclk = snd_soc_params_to_bclk(params);
823 if (params_channels(params) == 1)
824 wm8960->bclk *= 2;
825
826
827 switch (params_width(params)) {
828 case 16:
829 break;
830 case 20:
831 iface |= 0x0004;
832 break;
833 case 24:
834 iface |= 0x0008;
835 break;
836 case 32:
837
838 if ((iface & 0x3) != 0) {
839 iface |= 0x000c;
840 break;
841 }
842
843 default:
844 dev_err(component->dev, "unsupported width %d\n",
845 params_width(params));
846 return -EINVAL;
847 }
848
849 wm8960->lrclk = params_rate(params);
850
851 if (tx) {
852 wm8960_set_deemph(component);
853 } else {
854 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
855 if (alc_rates[i].rate == params_rate(params))
856 snd_soc_component_update_bits(component,
857 WM8960_ADDCTL3, 0x7,
858 alc_rates[i].val);
859 }
860
861
862 snd_soc_component_write(component, WM8960_IFACE1, iface);
863
864 wm8960->is_stream_in_use[tx] = true;
865
866 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_ON &&
867 !wm8960->is_stream_in_use[!tx])
868 return wm8960_configure_clocking(component);
869
870 return 0;
871}
872
873static int wm8960_hw_free(struct snd_pcm_substream *substream,
874 struct snd_soc_dai *dai)
875{
876 struct snd_soc_component *component = dai->component;
877 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
878 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
879
880 wm8960->is_stream_in_use[tx] = false;
881
882 return 0;
883}
884
885static int wm8960_mute(struct snd_soc_dai *dai, int mute)
886{
887 struct snd_soc_component *component = dai->component;
888
889 if (mute)
890 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0x8);
891 else
892 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0);
893 return 0;
894}
895
896static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
897 enum snd_soc_bias_level level)
898{
899 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
900 u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
901 int ret;
902
903 switch (level) {
904 case SND_SOC_BIAS_ON:
905 break;
906
907 case SND_SOC_BIAS_PREPARE:
908 switch (snd_soc_component_get_bias_level(component)) {
909 case SND_SOC_BIAS_STANDBY:
910 if (!IS_ERR(wm8960->mclk)) {
911 ret = clk_prepare_enable(wm8960->mclk);
912 if (ret) {
913 dev_err(component->dev,
914 "Failed to enable MCLK: %d\n",
915 ret);
916 return ret;
917 }
918 }
919
920 ret = wm8960_configure_clocking(component);
921 if (ret)
922 return ret;
923
924
925 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x80);
926 break;
927
928 case SND_SOC_BIAS_ON:
929
930
931
932
933 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
934 wm8960_set_pll(component, 0, 0);
935
936 if (!IS_ERR(wm8960->mclk))
937 clk_disable_unprepare(wm8960->mclk);
938 break;
939
940 default:
941 break;
942 }
943
944 break;
945
946 case SND_SOC_BIAS_STANDBY:
947 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
948 regcache_sync(wm8960->regmap);
949
950
951 snd_soc_component_write(component, WM8960_APOP1,
952 WM8960_POBCTRL | WM8960_SOFT_ST |
953 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
954
955
956 snd_soc_component_update_bits(component, WM8960_POWER1, 0x80, 0x80);
957 msleep(100);
958
959
960 snd_soc_component_update_bits(component, WM8960_POWER1, WM8960_VREF,
961 WM8960_VREF);
962
963
964 snd_soc_component_write(component, WM8960_APOP1, WM8960_BUFIOEN);
965 }
966
967
968 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x100);
969 break;
970
971 case SND_SOC_BIAS_OFF:
972
973 snd_soc_component_write(component, WM8960_APOP1,
974 WM8960_POBCTRL | WM8960_SOFT_ST |
975 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
976
977
978 snd_soc_component_write(component, WM8960_POWER1, 0);
979 msleep(600);
980 break;
981 }
982
983 return 0;
984}
985
986static int wm8960_set_bias_level_capless(struct snd_soc_component *component,
987 enum snd_soc_bias_level level)
988{
989 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
990 u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
991 int reg, ret;
992
993 switch (level) {
994 case SND_SOC_BIAS_ON:
995 break;
996
997 case SND_SOC_BIAS_PREPARE:
998 switch (snd_soc_component_get_bias_level(component)) {
999 case SND_SOC_BIAS_STANDBY:
1000
1001 snd_soc_component_update_bits(component, WM8960_APOP1,
1002 WM8960_POBCTRL | WM8960_SOFT_ST |
1003 WM8960_BUFDCOPEN,
1004 WM8960_POBCTRL | WM8960_SOFT_ST |
1005 WM8960_BUFDCOPEN);
1006
1007
1008 reg = 0;
1009 if (wm8960->lout1 && wm8960->lout1->power)
1010 reg |= WM8960_PWR2_LOUT1;
1011 if (wm8960->rout1 && wm8960->rout1->power)
1012 reg |= WM8960_PWR2_ROUT1;
1013 if (wm8960->out3 && wm8960->out3->power)
1014 reg |= WM8960_PWR2_OUT3;
1015 snd_soc_component_update_bits(component, WM8960_POWER2,
1016 WM8960_PWR2_LOUT1 |
1017 WM8960_PWR2_ROUT1 |
1018 WM8960_PWR2_OUT3, reg);
1019
1020
1021 snd_soc_component_update_bits(component, WM8960_POWER1,
1022 WM8960_VMID_MASK, 0x80);
1023
1024
1025 msleep(100);
1026
1027
1028 snd_soc_component_update_bits(component, WM8960_POWER1,
1029 WM8960_VREF, WM8960_VREF);
1030
1031 msleep(100);
1032
1033 if (!IS_ERR(wm8960->mclk)) {
1034 ret = clk_prepare_enable(wm8960->mclk);
1035 if (ret) {
1036 dev_err(component->dev,
1037 "Failed to enable MCLK: %d\n",
1038 ret);
1039 return ret;
1040 }
1041 }
1042
1043 ret = wm8960_configure_clocking(component);
1044 if (ret)
1045 return ret;
1046
1047 break;
1048
1049 case SND_SOC_BIAS_ON:
1050
1051
1052
1053
1054 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
1055 wm8960_set_pll(component, 0, 0);
1056
1057 if (!IS_ERR(wm8960->mclk))
1058 clk_disable_unprepare(wm8960->mclk);
1059
1060
1061 snd_soc_component_update_bits(component, WM8960_APOP1,
1062 WM8960_POBCTRL | WM8960_SOFT_ST |
1063 WM8960_BUFDCOPEN,
1064 WM8960_POBCTRL | WM8960_SOFT_ST |
1065 WM8960_BUFDCOPEN);
1066
1067
1068 snd_soc_component_update_bits(component, WM8960_POWER1,
1069 WM8960_VREF | WM8960_VMID_MASK, 0);
1070 break;
1071
1072 case SND_SOC_BIAS_OFF:
1073 regcache_sync(wm8960->regmap);
1074 break;
1075 default:
1076 break;
1077 }
1078 break;
1079
1080 case SND_SOC_BIAS_STANDBY:
1081 switch (snd_soc_component_get_bias_level(component)) {
1082 case SND_SOC_BIAS_PREPARE:
1083
1084 snd_soc_component_update_bits(component, WM8960_APOP2,
1085 WM8960_DISOP | WM8960_DRES_MASK,
1086 0);
1087
1088
1089 snd_soc_component_update_bits(component, WM8960_APOP1,
1090 WM8960_POBCTRL | WM8960_SOFT_ST |
1091 WM8960_BUFDCOPEN,
1092 WM8960_POBCTRL | WM8960_SOFT_ST |
1093 WM8960_BUFDCOPEN);
1094 break;
1095
1096 default:
1097 break;
1098 }
1099 break;
1100
1101 case SND_SOC_BIAS_OFF:
1102 break;
1103 }
1104
1105 return 0;
1106}
1107
1108
1109struct _pll_div {
1110 u32 pre_div:1;
1111 u32 n:4;
1112 u32 k:24;
1113};
1114
1115static bool is_pll_freq_available(unsigned int source, unsigned int target)
1116{
1117 unsigned int Ndiv;
1118
1119 if (source == 0 || target == 0)
1120 return false;
1121
1122
1123 target *= 4;
1124 Ndiv = target / source;
1125
1126 if (Ndiv < 6) {
1127 source >>= 1;
1128 Ndiv = target / source;
1129 }
1130
1131 if ((Ndiv < 6) || (Ndiv > 12))
1132 return false;
1133
1134 return true;
1135}
1136
1137
1138
1139#define FIXED_PLL_SIZE ((1 << 24) * 10)
1140
1141static int pll_factors(unsigned int source, unsigned int target,
1142 struct _pll_div *pll_div)
1143{
1144 unsigned long long Kpart;
1145 unsigned int K, Ndiv, Nmod;
1146
1147 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
1148
1149
1150 target *= 4;
1151
1152 Ndiv = target / source;
1153 if (Ndiv < 6) {
1154 source >>= 1;
1155 pll_div->pre_div = 1;
1156 Ndiv = target / source;
1157 } else
1158 pll_div->pre_div = 0;
1159
1160 if ((Ndiv < 6) || (Ndiv > 12)) {
1161 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
1162 return -EINVAL;
1163 }
1164
1165 pll_div->n = Ndiv;
1166 Nmod = target % source;
1167 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
1168
1169 do_div(Kpart, source);
1170
1171 K = Kpart & 0xFFFFFFFF;
1172
1173
1174 if ((K % 10) >= 5)
1175 K += 5;
1176
1177
1178 K /= 10;
1179
1180 pll_div->k = K;
1181
1182 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
1183 pll_div->n, pll_div->k, pll_div->pre_div);
1184
1185 return 0;
1186}
1187
1188static int wm8960_set_pll(struct snd_soc_component *component,
1189 unsigned int freq_in, unsigned int freq_out)
1190{
1191 u16 reg;
1192 static struct _pll_div pll_div;
1193 int ret;
1194
1195 if (freq_in && freq_out) {
1196 ret = pll_factors(freq_in, freq_out, &pll_div);
1197 if (ret != 0)
1198 return ret;
1199 }
1200
1201
1202
1203 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0);
1204 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0);
1205
1206 if (!freq_in || !freq_out)
1207 return 0;
1208
1209 reg = snd_soc_component_read32(component, WM8960_PLL1) & ~0x3f;
1210 reg |= pll_div.pre_div << 4;
1211 reg |= pll_div.n;
1212
1213 if (pll_div.k) {
1214 reg |= 0x20;
1215
1216 snd_soc_component_write(component, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
1217 snd_soc_component_write(component, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
1218 snd_soc_component_write(component, WM8960_PLL4, pll_div.k & 0xff);
1219 }
1220 snd_soc_component_write(component, WM8960_PLL1, reg);
1221
1222
1223 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0x1);
1224 msleep(250);
1225 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0x1);
1226
1227 return 0;
1228}
1229
1230static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1231 int source, unsigned int freq_in, unsigned int freq_out)
1232{
1233 struct snd_soc_component *component = codec_dai->component;
1234 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1235
1236 wm8960->freq_in = freq_in;
1237
1238 if (pll_id == WM8960_SYSCLK_AUTO)
1239 return 0;
1240
1241 return wm8960_set_pll(component, freq_in, freq_out);
1242}
1243
1244static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1245 int div_id, int div)
1246{
1247 struct snd_soc_component *component = codec_dai->component;
1248 u16 reg;
1249
1250 switch (div_id) {
1251 case WM8960_SYSCLKDIV:
1252 reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1f9;
1253 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1254 break;
1255 case WM8960_DACDIV:
1256 reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1c7;
1257 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1258 break;
1259 case WM8960_OPCLKDIV:
1260 reg = snd_soc_component_read32(component, WM8960_PLL1) & 0x03f;
1261 snd_soc_component_write(component, WM8960_PLL1, reg | div);
1262 break;
1263 case WM8960_DCLKDIV:
1264 reg = snd_soc_component_read32(component, WM8960_CLOCK2) & 0x03f;
1265 snd_soc_component_write(component, WM8960_CLOCK2, reg | div);
1266 break;
1267 case WM8960_TOCLKSEL:
1268 reg = snd_soc_component_read32(component, WM8960_ADDCTL1) & 0x1fd;
1269 snd_soc_component_write(component, WM8960_ADDCTL1, reg | div);
1270 break;
1271 default:
1272 return -EINVAL;
1273 }
1274
1275 return 0;
1276}
1277
1278static int wm8960_set_bias_level(struct snd_soc_component *component,
1279 enum snd_soc_bias_level level)
1280{
1281 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1282
1283 return wm8960->set_bias_level(component, level);
1284}
1285
1286static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1287 unsigned int freq, int dir)
1288{
1289 struct snd_soc_component *component = dai->component;
1290 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1291
1292 switch (clk_id) {
1293 case WM8960_SYSCLK_MCLK:
1294 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1295 0x1, WM8960_SYSCLK_MCLK);
1296 break;
1297 case WM8960_SYSCLK_PLL:
1298 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1299 0x1, WM8960_SYSCLK_PLL);
1300 break;
1301 case WM8960_SYSCLK_AUTO:
1302 break;
1303 default:
1304 return -EINVAL;
1305 }
1306
1307 wm8960->sysclk = freq;
1308 wm8960->clk_id = clk_id;
1309
1310 return 0;
1311}
1312
1313#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1314
1315#define WM8960_FORMATS \
1316 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1317 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1318
1319static const struct snd_soc_dai_ops wm8960_dai_ops = {
1320 .hw_params = wm8960_hw_params,
1321 .hw_free = wm8960_hw_free,
1322 .digital_mute = wm8960_mute,
1323 .set_fmt = wm8960_set_dai_fmt,
1324 .set_clkdiv = wm8960_set_dai_clkdiv,
1325 .set_pll = wm8960_set_dai_pll,
1326 .set_sysclk = wm8960_set_dai_sysclk,
1327};
1328
1329static struct snd_soc_dai_driver wm8960_dai = {
1330 .name = "wm8960-hifi",
1331 .playback = {
1332 .stream_name = "Playback",
1333 .channels_min = 1,
1334 .channels_max = 2,
1335 .rates = WM8960_RATES,
1336 .formats = WM8960_FORMATS,},
1337 .capture = {
1338 .stream_name = "Capture",
1339 .channels_min = 1,
1340 .channels_max = 2,
1341 .rates = WM8960_RATES,
1342 .formats = WM8960_FORMATS,},
1343 .ops = &wm8960_dai_ops,
1344 .symmetric_rates = 1,
1345};
1346
1347static int wm8960_probe(struct snd_soc_component *component)
1348{
1349 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1350 struct wm8960_data *pdata = &wm8960->pdata;
1351
1352 if (pdata->capless)
1353 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1354 else
1355 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1356
1357 snd_soc_add_component_controls(component, wm8960_snd_controls,
1358 ARRAY_SIZE(wm8960_snd_controls));
1359 wm8960_add_widgets(component);
1360
1361 return 0;
1362}
1363
1364static const struct snd_soc_component_driver soc_component_dev_wm8960 = {
1365 .probe = wm8960_probe,
1366 .set_bias_level = wm8960_set_bias_level,
1367 .suspend_bias_off = 1,
1368 .idle_bias_on = 1,
1369 .use_pmdown_time = 1,
1370 .endianness = 1,
1371 .non_legacy_dai_naming = 1,
1372};
1373
1374static const struct regmap_config wm8960_regmap = {
1375 .reg_bits = 7,
1376 .val_bits = 9,
1377 .max_register = WM8960_PLL4,
1378
1379 .reg_defaults = wm8960_reg_defaults,
1380 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1381 .cache_type = REGCACHE_RBTREE,
1382
1383 .volatile_reg = wm8960_volatile,
1384};
1385
1386static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1387 struct wm8960_data *pdata)
1388{
1389 const struct device_node *np = i2c->dev.of_node;
1390
1391 if (of_property_read_bool(np, "wlf,capless"))
1392 pdata->capless = true;
1393
1394 if (of_property_read_bool(np, "wlf,shared-lrclk"))
1395 pdata->shared_lrclk = true;
1396}
1397
1398static int wm8960_i2c_probe(struct i2c_client *i2c,
1399 const struct i2c_device_id *id)
1400{
1401 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1402 struct wm8960_priv *wm8960;
1403 int ret;
1404
1405 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1406 GFP_KERNEL);
1407 if (wm8960 == NULL)
1408 return -ENOMEM;
1409
1410 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1411 if (IS_ERR(wm8960->mclk)) {
1412 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1413 return -EPROBE_DEFER;
1414 }
1415
1416 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1417 if (IS_ERR(wm8960->regmap))
1418 return PTR_ERR(wm8960->regmap);
1419
1420 if (pdata)
1421 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1422 else if (i2c->dev.of_node)
1423 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1424
1425 ret = wm8960_reset(wm8960->regmap);
1426 if (ret != 0) {
1427 dev_err(&i2c->dev, "Failed to issue reset\n");
1428 return ret;
1429 }
1430
1431 if (wm8960->pdata.shared_lrclk) {
1432 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1433 0x4, 0x4);
1434 if (ret != 0) {
1435 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1436 ret);
1437 return ret;
1438 }
1439 }
1440
1441
1442 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1443 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1444 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1445 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1446 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1447 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1448 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1449 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1450 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1451 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1452
1453 i2c_set_clientdata(i2c, wm8960);
1454
1455 ret = devm_snd_soc_register_component(&i2c->dev,
1456 &soc_component_dev_wm8960, &wm8960_dai, 1);
1457
1458 return ret;
1459}
1460
1461static int wm8960_i2c_remove(struct i2c_client *client)
1462{
1463 return 0;
1464}
1465
1466static const struct i2c_device_id wm8960_i2c_id[] = {
1467 { "wm8960", 0 },
1468 { }
1469};
1470MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1471
1472static const struct of_device_id wm8960_of_match[] = {
1473 { .compatible = "wlf,wm8960", },
1474 { }
1475};
1476MODULE_DEVICE_TABLE(of, wm8960_of_match);
1477
1478static struct i2c_driver wm8960_i2c_driver = {
1479 .driver = {
1480 .name = "wm8960",
1481 .of_match_table = wm8960_of_match,
1482 },
1483 .probe = wm8960_i2c_probe,
1484 .remove = wm8960_i2c_remove,
1485 .id_table = wm8960_i2c_id,
1486};
1487
1488module_i2c_driver(wm8960_i2c_driver);
1489
1490MODULE_DESCRIPTION("ASoC WM8960 driver");
1491MODULE_AUTHOR("Liam Girdwood");
1492MODULE_LICENSE("GPL");
1493
