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e149ca29 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
3917da94 TI |
2 | // |
3 | // ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with | |
4 | // CX2072X codec | |
5 | // | |
6 | ||
7 | #include <linux/acpi.h> | |
8 | #include <linux/device.h> | |
2838bf94 | 9 | #include <linux/gpio/consumer.h> |
3917da94 TI |
10 | #include <linux/module.h> |
11 | #include <linux/platform_device.h> | |
12 | #include <linux/slab.h> | |
3917da94 TI |
13 | #include <sound/pcm.h> |
14 | #include <sound/pcm_params.h> | |
15 | #include <sound/jack.h> | |
16 | #include <sound/soc.h> | |
17 | #include <sound/soc-acpi.h> | |
18 | #include "../../codecs/cx2072x.h" | |
19 | #include "../atom/sst-atom-controls.h" | |
20 | ||
21 | static const struct snd_soc_dapm_widget byt_cht_cx2072x_widgets[] = { | |
22 | SND_SOC_DAPM_HP("Headphone", NULL), | |
23 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
24 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
25 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
26 | }; | |
27 | ||
28 | static const struct snd_soc_dapm_route byt_cht_cx2072x_audio_map[] = { | |
29 | /* External Speakers: HFL, HFR */ | |
30 | {"Headphone", NULL, "PORTA"}, | |
31 | {"Ext Spk", NULL, "PORTG"}, | |
32 | {"PORTC", NULL, "Int Mic"}, | |
33 | {"PORTD", NULL, "Headset Mic"}, | |
34 | ||
35 | {"Playback", NULL, "ssp2 Tx"}, | |
36 | {"ssp2 Tx", NULL, "codec_out0"}, | |
37 | {"ssp2 Tx", NULL, "codec_out1"}, | |
38 | {"codec_in0", NULL, "ssp2 Rx"}, | |
39 | {"codec_in1", NULL, "ssp2 Rx"}, | |
40 | {"ssp2 Rx", NULL, "Capture"}, | |
41 | }; | |
42 | ||
43 | static const struct snd_kcontrol_new byt_cht_cx2072x_controls[] = { | |
44 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
45 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
46 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
47 | SOC_DAPM_PIN_SWITCH("Ext Spk"), | |
48 | }; | |
49 | ||
50 | static struct snd_soc_jack byt_cht_cx2072x_headset; | |
51 | ||
52 | /* Headset jack detection DAPM pins */ | |
53 | static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = { | |
54 | { | |
55 | .pin = "Headset Mic", | |
56 | .mask = SND_JACK_MICROPHONE, | |
57 | }, | |
58 | { | |
59 | .pin = "Headphone", | |
60 | .mask = SND_JACK_HEADPHONE, | |
61 | }, | |
62 | }; | |
63 | ||
64 | static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios; | |
65 | static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = { | |
66 | { "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 }, | |
67 | {}, | |
68 | }; | |
69 | ||
70 | static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd) | |
71 | { | |
72 | struct snd_soc_card *card = rtd->card; | |
0d1571c1 | 73 | struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component; |
3917da94 TI |
74 | int ret; |
75 | ||
76 | if (devm_acpi_dev_add_driver_gpios(codec->dev, | |
77 | byt_cht_cx2072x_acpi_gpios)) | |
78 | dev_warn(rtd->dev, "Unable to add GPIO mapping table\n"); | |
79 | ||
80 | card->dapm.idle_bias_off = true; | |
81 | ||
82 | /* set the default PLL rate, the clock is handled by the codec driver */ | |
0d1571c1 | 83 | ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), CX2072X_MCLK_EXTERNAL_PLL, |
3917da94 TI |
84 | 19200000, SND_SOC_CLOCK_IN); |
85 | if (ret) { | |
86 | dev_err(rtd->dev, "Could not set sysclk\n"); | |
87 | return ret; | |
88 | } | |
89 | ||
90 | ret = snd_soc_card_jack_new(card, "Headset", | |
91 | SND_JACK_HEADSET | SND_JACK_BTN_0, | |
92 | &byt_cht_cx2072x_headset, | |
93 | byt_cht_cx2072x_headset_pins, | |
94 | ARRAY_SIZE(byt_cht_cx2072x_headset_pins)); | |
95 | if (ret) | |
96 | return ret; | |
97 | ||
98 | snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL); | |
99 | ||
0d1571c1 | 100 | snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), 50); |
3917da94 TI |
101 | |
102 | return ret; | |
103 | } | |
104 | ||
105 | static int byt_cht_cx2072x_fixup(struct snd_soc_pcm_runtime *rtd, | |
106 | struct snd_pcm_hw_params *params) | |
107 | { | |
108 | struct snd_interval *rate = | |
109 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); | |
110 | struct snd_interval *channels = | |
111 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
112 | int ret; | |
113 | ||
114 | /* The DSP will covert the FE rate to 48k, stereo, 24bits */ | |
115 | rate->min = rate->max = 48000; | |
116 | channels->min = channels->max = 2; | |
117 | ||
118 | /* set SSP2 to 24-bit */ | |
119 | params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); | |
120 | ||
121 | /* | |
122 | * Default mode for SSP configuration is TDM 4 slot, override config | |
123 | * with explicit setting to I2S 2ch 24-bit. The word length is set with | |
124 | * dai_set_tdm_slot() since there is no other API exposed | |
125 | */ | |
0d1571c1 | 126 | ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), |
3917da94 TI |
127 | SND_SOC_DAIFMT_I2S | |
128 | SND_SOC_DAIFMT_NB_NF | | |
129 | SND_SOC_DAIFMT_CBS_CFS); | |
130 | if (ret < 0) { | |
131 | dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); | |
132 | return ret; | |
133 | } | |
134 | ||
0d1571c1 | 135 | ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 24); |
3917da94 TI |
136 | if (ret < 0) { |
137 | dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); | |
138 | return ret; | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | static int byt_cht_cx2072x_aif1_startup(struct snd_pcm_substream *substream) | |
145 | { | |
146 | return snd_pcm_hw_constraint_single(substream->runtime, | |
147 | SNDRV_PCM_HW_PARAM_RATE, 48000); | |
148 | } | |
149 | ||
150 | static struct snd_soc_ops byt_cht_cx2072x_aif1_ops = { | |
151 | .startup = byt_cht_cx2072x_aif1_startup, | |
152 | }; | |
153 | ||
196c52e1 KM |
154 | SND_SOC_DAILINK_DEF(dummy, |
155 | DAILINK_COMP_ARRAY(COMP_DUMMY())); | |
156 | ||
157 | SND_SOC_DAILINK_DEF(media, | |
158 | DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); | |
159 | ||
160 | SND_SOC_DAILINK_DEF(deepbuffer, | |
161 | DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); | |
162 | ||
163 | SND_SOC_DAILINK_DEF(ssp2, | |
164 | DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); | |
165 | ||
166 | SND_SOC_DAILINK_DEF(cx2072x, | |
167 | DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi"))); | |
168 | ||
169 | SND_SOC_DAILINK_DEF(platform, | |
170 | DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); | |
171 | ||
3917da94 TI |
172 | static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = { |
173 | [MERR_DPCM_AUDIO] = { | |
174 | .name = "Audio Port", | |
175 | .stream_name = "Audio", | |
3917da94 TI |
176 | .nonatomic = true, |
177 | .dynamic = 1, | |
178 | .dpcm_playback = 1, | |
179 | .dpcm_capture = 1, | |
180 | .ops = &byt_cht_cx2072x_aif1_ops, | |
196c52e1 | 181 | SND_SOC_DAILINK_REG(media, dummy, platform), |
3917da94 TI |
182 | }, |
183 | [MERR_DPCM_DEEP_BUFFER] = { | |
184 | .name = "Deep-Buffer Audio Port", | |
185 | .stream_name = "Deep-Buffer Audio", | |
3917da94 TI |
186 | .nonatomic = true, |
187 | .dynamic = 1, | |
188 | .dpcm_playback = 1, | |
189 | .ops = &byt_cht_cx2072x_aif1_ops, | |
196c52e1 | 190 | SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), |
3917da94 TI |
191 | }, |
192 | /* back ends */ | |
193 | { | |
194 | .name = "SSP2-Codec", | |
195 | .id = 0, | |
3917da94 | 196 | .no_pcm = 1, |
3917da94 TI |
197 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
198 | | SND_SOC_DAIFMT_CBS_CFS, | |
199 | .init = byt_cht_cx2072x_init, | |
200 | .be_hw_params_fixup = byt_cht_cx2072x_fixup, | |
201 | .nonatomic = true, | |
202 | .dpcm_playback = 1, | |
203 | .dpcm_capture = 1, | |
196c52e1 | 204 | SND_SOC_DAILINK_REG(ssp2, cx2072x, platform), |
3917da94 TI |
205 | }, |
206 | }; | |
207 | ||
b4ecd58b PLB |
208 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) |
209 | /* use space before codec name to simplify card ID, and simplify driver name */ | |
210 | #define CARD_NAME "bytcht cx2072x" /* card name will be 'sof-bytcht cx2072x' */ | |
211 | #define DRIVER_NAME "SOF" | |
212 | #else | |
213 | #define CARD_NAME "bytcht-cx2072x" | |
214 | #define DRIVER_NAME NULL /* card name will be used for driver name */ | |
215 | #endif | |
216 | ||
3917da94 TI |
217 | /* SoC card */ |
218 | static struct snd_soc_card byt_cht_cx2072x_card = { | |
b4ecd58b PLB |
219 | .name = CARD_NAME, |
220 | .driver_name = DRIVER_NAME, | |
3917da94 TI |
221 | .owner = THIS_MODULE, |
222 | .dai_link = byt_cht_cx2072x_dais, | |
223 | .num_links = ARRAY_SIZE(byt_cht_cx2072x_dais), | |
224 | .dapm_widgets = byt_cht_cx2072x_widgets, | |
225 | .num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets), | |
226 | .dapm_routes = byt_cht_cx2072x_audio_map, | |
227 | .num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map), | |
228 | .controls = byt_cht_cx2072x_controls, | |
229 | .num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls), | |
230 | }; | |
231 | ||
232 | static char codec_name[SND_ACPI_I2C_ID_LEN]; | |
233 | ||
234 | static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev) | |
235 | { | |
236 | struct snd_soc_acpi_mach *mach; | |
237 | struct acpi_device *adev; | |
238 | int dai_index = 0; | |
239 | int i, ret; | |
240 | ||
241 | byt_cht_cx2072x_card.dev = &pdev->dev; | |
242 | mach = dev_get_platdata(&pdev->dev); | |
243 | ||
244 | /* fix index of codec dai */ | |
245 | for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) { | |
196c52e1 | 246 | if (!strcmp(byt_cht_cx2072x_dais[i].codecs->name, |
3917da94 TI |
247 | "i2c-14F10720:00")) { |
248 | dai_index = i; | |
249 | break; | |
250 | } | |
251 | } | |
252 | ||
253 | /* fixup codec name based on HID */ | |
254 | adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); | |
255 | if (adev) { | |
256 | snprintf(codec_name, sizeof(codec_name), "i2c-%s", | |
257 | acpi_dev_name(adev)); | |
258 | put_device(&adev->dev); | |
196c52e1 | 259 | byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name; |
3917da94 TI |
260 | } |
261 | ||
262 | /* override plaform name, if required */ | |
263 | ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card, | |
264 | mach->mach_params.platform); | |
265 | if (ret) | |
266 | return ret; | |
267 | ||
268 | return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card); | |
269 | } | |
270 | ||
271 | static struct platform_driver snd_byt_cht_cx2072x_driver = { | |
272 | .driver = { | |
273 | .name = "bytcht_cx2072x", | |
68224376 PLB |
274 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) |
275 | .pm = &snd_soc_pm_ops, | |
276 | #endif | |
3917da94 TI |
277 | }, |
278 | .probe = snd_byt_cht_cx2072x_probe, | |
279 | }; | |
280 | module_platform_driver(snd_byt_cht_cx2072x_driver); | |
281 | ||
282 | MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver"); | |
283 | MODULE_LICENSE("GPL v2"); | |
284 | MODULE_ALIAS("platform:bytcht_cx2072x"); |