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14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/i2c.h>
17#include <linux/regmap.h>
18#include <sound/soc.h>
19#include <sound/tlv.h>
20#include <sound/pcm_params.h>
21
22#include "tfa9879.h"
23
24struct tfa9879_priv {
25 struct regmap *regmap;
26 int lsb_justified;
27};
28
29static int tfa9879_hw_params(struct snd_pcm_substream *substream,
30 struct snd_pcm_hw_params *params,
31 struct snd_soc_dai *dai)
32{
33 struct snd_soc_component *component = dai->component;
34 struct tfa9879_priv *tfa9879 = snd_soc_component_get_drvdata(component);
35 int fs;
36 int i2s_set = 0;
37
38 switch (params_rate(params)) {
39 case 8000:
40 fs = TFA9879_I2S_FS_8000;
41 break;
42 case 11025:
43 fs = TFA9879_I2S_FS_11025;
44 break;
45 case 12000:
46 fs = TFA9879_I2S_FS_12000;
47 break;
48 case 16000:
49 fs = TFA9879_I2S_FS_16000;
50 break;
51 case 22050:
52 fs = TFA9879_I2S_FS_22050;
53 break;
54 case 24000:
55 fs = TFA9879_I2S_FS_24000;
56 break;
57 case 32000:
58 fs = TFA9879_I2S_FS_32000;
59 break;
60 case 44100:
61 fs = TFA9879_I2S_FS_44100;
62 break;
63 case 48000:
64 fs = TFA9879_I2S_FS_48000;
65 break;
66 case 64000:
67 fs = TFA9879_I2S_FS_64000;
68 break;
69 case 88200:
70 fs = TFA9879_I2S_FS_88200;
71 break;
72 case 96000:
73 fs = TFA9879_I2S_FS_96000;
74 break;
75 default:
76 return -EINVAL;
77 }
78
79 switch (params_width(params)) {
80 case 16:
81 i2s_set = TFA9879_I2S_SET_LSB_J_16;
82 break;
83 case 24:
84 i2s_set = TFA9879_I2S_SET_LSB_J_24;
85 break;
86 default:
87 return -EINVAL;
88 }
89
90 if (tfa9879->lsb_justified)
91 snd_soc_component_update_bits(component, TFA9879_SERIAL_INTERFACE_1,
92 TFA9879_I2S_SET_MASK,
93 i2s_set << TFA9879_I2S_SET_SHIFT);
94
95 snd_soc_component_update_bits(component, TFA9879_SERIAL_INTERFACE_1,
96 TFA9879_I2S_FS_MASK,
97 fs << TFA9879_I2S_FS_SHIFT);
98 return 0;
99}
100
101static int tfa9879_digital_mute(struct snd_soc_dai *dai, int mute)
102{
103 struct snd_soc_component *component = dai->component;
104
105 snd_soc_component_update_bits(component, TFA9879_MISC_CONTROL,
106 TFA9879_S_MUTE_MASK,
107 !!mute << TFA9879_S_MUTE_SHIFT);
108
109 return 0;
110}
111
112static int tfa9879_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
113{
114 struct snd_soc_component *component = dai->component;
115 struct tfa9879_priv *tfa9879 = snd_soc_component_get_drvdata(component);
116 int i2s_set;
117 int sck_pol;
118
119 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
120 case SND_SOC_DAIFMT_CBS_CFS:
121 break;
122 default:
123 return -EINVAL;
124 }
125
126 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
127 case SND_SOC_DAIFMT_NB_NF:
128 sck_pol = TFA9879_SCK_POL_NORMAL;
129 break;
130 case SND_SOC_DAIFMT_IB_NF:
131 sck_pol = TFA9879_SCK_POL_INVERSE;
132 break;
133 default:
134 return -EINVAL;
135 }
136
137 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
138 case SND_SOC_DAIFMT_I2S:
139 tfa9879->lsb_justified = 0;
140 i2s_set = TFA9879_I2S_SET_I2S_24;
141 break;
142 case SND_SOC_DAIFMT_LEFT_J:
143 tfa9879->lsb_justified = 0;
144 i2s_set = TFA9879_I2S_SET_MSB_J_24;
145 break;
146 case SND_SOC_DAIFMT_RIGHT_J:
147 tfa9879->lsb_justified = 1;
148 i2s_set = TFA9879_I2S_SET_LSB_J_24;
149 break;
150 default:
151 return -EINVAL;
152 }
153
154 snd_soc_component_update_bits(component, TFA9879_SERIAL_INTERFACE_1,
155 TFA9879_SCK_POL_MASK,
156 sck_pol << TFA9879_SCK_POL_SHIFT);
157 snd_soc_component_update_bits(component, TFA9879_SERIAL_INTERFACE_1,
158 TFA9879_I2S_SET_MASK,
159 i2s_set << TFA9879_I2S_SET_SHIFT);
160 return 0;
161}
162
163static const struct reg_default tfa9879_regs[] = {
164 { TFA9879_DEVICE_CONTROL, 0x0000 },
165 { TFA9879_SERIAL_INTERFACE_1, 0x0a18 },
166 { TFA9879_PCM_IOM2_FORMAT_1, 0x0007 },
167 { TFA9879_SERIAL_INTERFACE_2, 0x0a18 },
168 { TFA9879_PCM_IOM2_FORMAT_2, 0x0007 },
169 { TFA9879_EQUALIZER_A1, 0x59dd },
170 { TFA9879_EQUALIZER_A2, 0xc63e },
171 { TFA9879_EQUALIZER_B1, 0x651a },
172 { TFA9879_EQUALIZER_B2, 0xe53e },
173 { TFA9879_EQUALIZER_C1, 0x4616 },
174 { TFA9879_EQUALIZER_C2, 0xd33e },
175 { TFA9879_EQUALIZER_D1, 0x4df3 },
176 { TFA9879_EQUALIZER_D2, 0xea3e },
177 { TFA9879_EQUALIZER_E1, 0x5ee0 },
178 { TFA9879_EQUALIZER_E2, 0xf93e },
179 { TFA9879_BYPASS_CONTROL, 0x0093 },
180 { TFA9879_DYNAMIC_RANGE_COMPR, 0x92ba },
181 { TFA9879_BASS_TREBLE, 0x12a5 },
182 { TFA9879_HIGH_PASS_FILTER, 0x0004 },
183 { TFA9879_VOLUME_CONTROL, 0x10bd },
184 { TFA9879_MISC_CONTROL, 0x0000 },
185};
186
187static bool tfa9879_volatile_reg(struct device *dev, unsigned int reg)
188{
189 return reg == TFA9879_MISC_STATUS;
190}
191
192static const DECLARE_TLV_DB_SCALE(volume_tlv, -7050, 50, 1);
193static const DECLARE_TLV_DB_SCALE(tb_gain_tlv, -1800, 200, 0);
194static const char * const tb_freq_text[] = {
195 "Low", "Mid", "High"
196};
197static const struct soc_enum treble_freq_enum =
198 SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_TRBLE_SHIFT,
199 ARRAY_SIZE(tb_freq_text), tb_freq_text);
200static const struct soc_enum bass_freq_enum =
201 SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_BASS_SHIFT,
202 ARRAY_SIZE(tb_freq_text), tb_freq_text);
203
204static const struct snd_kcontrol_new tfa9879_controls[] = {
205 SOC_SINGLE_TLV("PCM Playback Volume", TFA9879_VOLUME_CONTROL,
206 TFA9879_VOL_SHIFT, 0xbd, 1, volume_tlv),
207 SOC_SINGLE_TLV("Treble Volume", TFA9879_BASS_TREBLE,
208 TFA9879_G_TRBLE_SHIFT, 18, 0, tb_gain_tlv),
209 SOC_SINGLE_TLV("Bass Volume", TFA9879_BASS_TREBLE,
210 TFA9879_G_BASS_SHIFT, 18, 0, tb_gain_tlv),
211 SOC_ENUM("Treble Corner Freq", treble_freq_enum),
212 SOC_ENUM("Bass Corner Freq", bass_freq_enum),
213};
214
215static const struct snd_soc_dapm_widget tfa9879_dapm_widgets[] = {
216SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
217SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
218SND_SOC_DAPM_DAC("DAC", NULL, TFA9879_DEVICE_CONTROL, TFA9879_OPMODE_SHIFT, 0),
219SND_SOC_DAPM_OUTPUT("LINEOUT"),
220SND_SOC_DAPM_SUPPLY("POWER", TFA9879_DEVICE_CONTROL, TFA9879_POWERUP_SHIFT, 0,
221 NULL, 0),
222};
223
224static const struct snd_soc_dapm_route tfa9879_dapm_routes[] = {
225 { "DAC", NULL, "AIFINL" },
226 { "DAC", NULL, "AIFINR" },
227
228 { "LINEOUT", NULL, "DAC" },
229
230 { "DAC", NULL, "POWER" },
231};
232
233static const struct snd_soc_component_driver tfa9879_component = {
234 .controls = tfa9879_controls,
235 .num_controls = ARRAY_SIZE(tfa9879_controls),
236 .dapm_widgets = tfa9879_dapm_widgets,
237 .num_dapm_widgets = ARRAY_SIZE(tfa9879_dapm_widgets),
238 .dapm_routes = tfa9879_dapm_routes,
239 .num_dapm_routes = ARRAY_SIZE(tfa9879_dapm_routes),
240 .idle_bias_on = 1,
241 .use_pmdown_time = 1,
242 .endianness = 1,
243 .non_legacy_dai_naming = 1,
244};
245
246static const struct regmap_config tfa9879_regmap = {
247 .reg_bits = 8,
248 .val_bits = 16,
249
250 .volatile_reg = tfa9879_volatile_reg,
251 .max_register = TFA9879_MISC_STATUS,
252 .reg_defaults = tfa9879_regs,
253 .num_reg_defaults = ARRAY_SIZE(tfa9879_regs),
254 .cache_type = REGCACHE_RBTREE,
255};
256
257static const struct snd_soc_dai_ops tfa9879_dai_ops = {
258 .hw_params = tfa9879_hw_params,
259 .digital_mute = tfa9879_digital_mute,
260 .set_fmt = tfa9879_set_fmt,
261};
262
263#define TFA9879_RATES SNDRV_PCM_RATE_8000_96000
264
265#define TFA9879_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
266 SNDRV_PCM_FMTBIT_S24_LE)
267
268static struct snd_soc_dai_driver tfa9879_dai = {
269 .name = "tfa9879-hifi",
270 .playback = {
271 .stream_name = "Playback",
272 .channels_min = 2,
273 .channels_max = 2,
274 .rates = TFA9879_RATES,
275 .formats = TFA9879_FORMATS, },
276 .ops = &tfa9879_dai_ops,
277};
278
279static int tfa9879_i2c_probe(struct i2c_client *i2c,
280 const struct i2c_device_id *id)
281{
282 struct tfa9879_priv *tfa9879;
283 int i;
284
285 tfa9879 = devm_kzalloc(&i2c->dev, sizeof(*tfa9879), GFP_KERNEL);
286 if (!tfa9879)
287 return -ENOMEM;
288
289 i2c_set_clientdata(i2c, tfa9879);
290
291 tfa9879->regmap = devm_regmap_init_i2c(i2c, &tfa9879_regmap);
292 if (IS_ERR(tfa9879->regmap))
293 return PTR_ERR(tfa9879->regmap);
294
295
296 for (i = 0; i < ARRAY_SIZE(tfa9879_regs); i++)
297 regmap_write(tfa9879->regmap,
298 tfa9879_regs[i].reg, tfa9879_regs[i].def);
299
300 return devm_snd_soc_register_component(&i2c->dev, &tfa9879_component,
301 &tfa9879_dai, 1);
302}
303
304static const struct i2c_device_id tfa9879_i2c_id[] = {
305 { "tfa9879", 0 },
306 { }
307};
308MODULE_DEVICE_TABLE(i2c, tfa9879_i2c_id);
309
310static const struct of_device_id tfa9879_of_match[] = {
311 { .compatible = "nxp,tfa9879", },
312 { }
313};
314MODULE_DEVICE_TABLE(of, tfa9879_of_match);
315
316static struct i2c_driver tfa9879_i2c_driver = {
317 .driver = {
318 .name = "tfa9879",
319 .of_match_table = tfa9879_of_match,
320 },
321 .probe = tfa9879_i2c_probe,
322 .id_table = tfa9879_i2c_id,
323};
324
325module_i2c_driver(tfa9879_i2c_driver);
326
327MODULE_DESCRIPTION("ASoC NXP Semiconductors TFA9879 driver");
328MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
329MODULE_LICENSE("GPL");
330
