Commit | Line | Data |
---|---|---|
a8bf1ba1 SW |
1 | /* |
2 | * harmony.c - Harmony machine ASoC driver | |
3 | * | |
4 | * Author: Stephen Warren <swarren@nvidia.com> | |
72de2b1a | 5 | * Copyright (C) 2010-2011 - NVIDIA, Inc. |
a8bf1ba1 SW |
6 | * |
7 | * Based on code copyright/by: | |
8 | * | |
9 | * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. | |
10 | * | |
11 | * Copyright 2007 Wolfson Microelectronics PLC. | |
12 | * Author: Graeme Gregory | |
13 | * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or | |
16 | * modify it under the terms of the GNU General Public License | |
17 | * version 2 as published by the Free Software Foundation. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, but | |
20 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
22 | * General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
27 | * 02110-1301 USA | |
28 | * | |
29 | */ | |
30 | ||
31 | #include <asm/mach-types.h> | |
72de2b1a | 32 | |
a8bf1ba1 | 33 | #include <linux/module.h> |
72de2b1a SW |
34 | #include <linux/platform_device.h> |
35 | #include <linux/slab.h> | |
6e267645 SW |
36 | #include <linux/gpio.h> |
37 | ||
4651d556 | 38 | #include <mach/tegra_wm8903_pdata.h> |
72de2b1a | 39 | |
a8bf1ba1 | 40 | #include <sound/core.h> |
f7d3e403 | 41 | #include <sound/jack.h> |
a8bf1ba1 SW |
42 | #include <sound/pcm.h> |
43 | #include <sound/pcm_params.h> | |
44 | #include <sound/soc.h> | |
45 | ||
41b5f9b3 SW |
46 | #include "../codecs/wm8903.h" |
47 | ||
a8bf1ba1 SW |
48 | #include "tegra_das.h" |
49 | #include "tegra_i2s.h" | |
50 | #include "tegra_pcm.h" | |
51 | #include "tegra_asoc_utils.h" | |
52 | ||
72de2b1a | 53 | #define DRV_NAME "tegra-snd-harmony" |
a8bf1ba1 | 54 | |
bf1b1328 SW |
55 | #define GPIO_SPKR_EN BIT(0) |
56 | #define GPIO_INT_MIC_EN BIT(1) | |
57 | #define GPIO_EXT_MIC_EN BIT(2) | |
58 | ||
72de2b1a | 59 | struct tegra_harmony { |
d64e57ce | 60 | struct tegra_asoc_utils_data util_data; |
4651d556 | 61 | struct tegra_wm8903_platform_data *pdata; |
bf1b1328 | 62 | int gpio_requested; |
72de2b1a | 63 | }; |
a8bf1ba1 SW |
64 | |
65 | static int harmony_asoc_hw_params(struct snd_pcm_substream *substream, | |
66 | struct snd_pcm_hw_params *params) | |
67 | { | |
68 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
69 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
70 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
c244d477 SW |
71 | struct snd_soc_codec *codec = rtd->codec; |
72 | struct snd_soc_card *card = codec->card; | |
d64e57ce | 73 | struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card); |
a8bf1ba1 SW |
74 | int srate, mclk, mclk_change; |
75 | int err; | |
76 | ||
77 | srate = params_rate(params); | |
78 | switch (srate) { | |
79 | case 64000: | |
80 | case 88200: | |
81 | case 96000: | |
82 | mclk = 128 * srate; | |
83 | break; | |
84 | default: | |
85 | mclk = 256 * srate; | |
86 | break; | |
87 | } | |
88 | /* FIXME: Codec only requires >= 3MHz if OSR==0 */ | |
89 | while (mclk < 6000000) | |
90 | mclk *= 2; | |
91 | ||
d64e57ce SW |
92 | err = tegra_asoc_utils_set_rate(&harmony->util_data, srate, mclk, |
93 | &mclk_change); | |
a8bf1ba1 | 94 | if (err < 0) { |
c244d477 | 95 | dev_err(card->dev, "Can't configure clocks\n"); |
a8bf1ba1 SW |
96 | return err; |
97 | } | |
98 | ||
99 | err = snd_soc_dai_set_fmt(codec_dai, | |
100 | SND_SOC_DAIFMT_I2S | | |
101 | SND_SOC_DAIFMT_NB_NF | | |
102 | SND_SOC_DAIFMT_CBS_CFS); | |
103 | if (err < 0) { | |
c244d477 | 104 | dev_err(card->dev, "codec_dai fmt not set\n"); |
a8bf1ba1 SW |
105 | return err; |
106 | } | |
107 | ||
108 | err = snd_soc_dai_set_fmt(cpu_dai, | |
109 | SND_SOC_DAIFMT_I2S | | |
110 | SND_SOC_DAIFMT_NB_NF | | |
111 | SND_SOC_DAIFMT_CBS_CFS); | |
112 | if (err < 0) { | |
c244d477 | 113 | dev_err(card->dev, "cpu_dai fmt not set\n"); |
a8bf1ba1 SW |
114 | return err; |
115 | } | |
116 | ||
117 | if (mclk_change) { | |
bc72fe0c SW |
118 | err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
119 | SND_SOC_CLOCK_IN); | |
120 | if (err < 0) { | |
c244d477 | 121 | dev_err(card->dev, "codec_dai clock not set\n"); |
bc72fe0c SW |
122 | return err; |
123 | } | |
a8bf1ba1 SW |
124 | } |
125 | ||
126 | return 0; | |
127 | } | |
128 | ||
129 | static struct snd_soc_ops harmony_asoc_ops = { | |
130 | .hw_params = harmony_asoc_hw_params, | |
131 | }; | |
132 | ||
f7d3e403 SW |
133 | static struct snd_soc_jack harmony_hp_jack; |
134 | ||
135 | static struct snd_soc_jack_pin harmony_hp_jack_pins[] = { | |
136 | { | |
137 | .pin = "Headphone Jack", | |
138 | .mask = SND_JACK_HEADPHONE, | |
139 | }, | |
140 | }; | |
141 | ||
142 | static struct snd_soc_jack_gpio harmony_hp_jack_gpios[] = { | |
143 | { | |
144 | .name = "headphone detect", | |
145 | .report = SND_JACK_HEADPHONE, | |
146 | .debounce_time = 150, | |
147 | .invert = 1, | |
148 | } | |
149 | }; | |
150 | ||
41b5f9b3 SW |
151 | static struct snd_soc_jack harmony_mic_jack; |
152 | ||
153 | static struct snd_soc_jack_pin harmony_mic_jack_pins[] = { | |
154 | { | |
155 | .pin = "Mic Jack", | |
156 | .mask = SND_JACK_MICROPHONE, | |
157 | }, | |
158 | }; | |
159 | ||
6e267645 SW |
160 | static int harmony_event_int_spk(struct snd_soc_dapm_widget *w, |
161 | struct snd_kcontrol *k, int event) | |
162 | { | |
163 | struct snd_soc_codec *codec = w->codec; | |
164 | struct snd_soc_card *card = codec->card; | |
165 | struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card); | |
4651d556 | 166 | struct tegra_wm8903_platform_data *pdata = harmony->pdata; |
6e267645 SW |
167 | |
168 | gpio_set_value_cansleep(pdata->gpio_spkr_en, | |
f9eabc3d | 169 | SND_SOC_DAPM_EVENT_ON(event)); |
6e267645 SW |
170 | |
171 | return 0; | |
172 | } | |
173 | ||
62ffac4d | 174 | static const struct snd_soc_dapm_widget harmony_dapm_widgets[] = { |
6e267645 | 175 | SND_SOC_DAPM_SPK("Int Spk", harmony_event_int_spk), |
62ffac4d SW |
176 | SND_SOC_DAPM_HP("Headphone Jack", NULL), |
177 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
178 | }; | |
179 | ||
180 | static const struct snd_soc_dapm_route harmony_audio_map[] = { | |
181 | {"Headphone Jack", NULL, "HPOUTR"}, | |
182 | {"Headphone Jack", NULL, "HPOUTL"}, | |
6e267645 SW |
183 | {"Int Spk", NULL, "ROP"}, |
184 | {"Int Spk", NULL, "RON"}, | |
185 | {"Int Spk", NULL, "LOP"}, | |
186 | {"Int Spk", NULL, "LON"}, | |
62ffac4d SW |
187 | {"Mic Bias", NULL, "Mic Jack"}, |
188 | {"IN1L", NULL, "Mic Bias"}, | |
189 | }; | |
190 | ||
3d8bc390 SW |
191 | static const struct snd_kcontrol_new harmony_controls[] = { |
192 | SOC_DAPM_PIN_SWITCH("Int Spk"), | |
193 | }; | |
194 | ||
62ffac4d SW |
195 | static int harmony_asoc_init(struct snd_soc_pcm_runtime *rtd) |
196 | { | |
197 | struct snd_soc_codec *codec = rtd->codec; | |
198 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
6e267645 SW |
199 | struct snd_soc_card *card = codec->card; |
200 | struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card); | |
4651d556 | 201 | struct tegra_wm8903_platform_data *pdata = harmony->pdata; |
6e267645 SW |
202 | int ret; |
203 | ||
204 | ret = gpio_request(pdata->gpio_spkr_en, "spkr_en"); | |
205 | if (ret) { | |
206 | dev_err(card->dev, "cannot get spkr_en gpio\n"); | |
207 | return ret; | |
208 | } | |
bf1b1328 | 209 | harmony->gpio_requested |= GPIO_SPKR_EN; |
6e267645 SW |
210 | |
211 | gpio_direction_output(pdata->gpio_spkr_en, 0); | |
62ffac4d | 212 | |
bf1b1328 SW |
213 | ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en"); |
214 | if (ret) { | |
215 | dev_err(card->dev, "cannot get int_mic_en gpio\n"); | |
216 | return ret; | |
217 | } | |
218 | harmony->gpio_requested |= GPIO_INT_MIC_EN; | |
219 | ||
220 | /* Disable int mic; enable signal is active-high */ | |
221 | gpio_direction_output(pdata->gpio_int_mic_en, 0); | |
222 | ||
223 | ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en"); | |
224 | if (ret) { | |
225 | dev_err(card->dev, "cannot get ext_mic_en gpio\n"); | |
226 | return ret; | |
227 | } | |
228 | harmony->gpio_requested |= GPIO_EXT_MIC_EN; | |
229 | ||
230 | /* Enable ext mic; enable signal is active-low */ | |
231 | gpio_direction_output(pdata->gpio_ext_mic_en, 0); | |
232 | ||
3d8bc390 SW |
233 | ret = snd_soc_add_controls(codec, harmony_controls, |
234 | ARRAY_SIZE(harmony_controls)); | |
235 | if (ret < 0) | |
236 | return ret; | |
237 | ||
62ffac4d SW |
238 | snd_soc_dapm_new_controls(dapm, harmony_dapm_widgets, |
239 | ARRAY_SIZE(harmony_dapm_widgets)); | |
240 | ||
241 | snd_soc_dapm_add_routes(dapm, harmony_audio_map, | |
242 | ARRAY_SIZE(harmony_audio_map)); | |
243 | ||
f7d3e403 SW |
244 | harmony_hp_jack_gpios[0].gpio = pdata->gpio_hp_det; |
245 | snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE, | |
246 | &harmony_hp_jack); | |
247 | snd_soc_jack_add_pins(&harmony_hp_jack, | |
248 | ARRAY_SIZE(harmony_hp_jack_pins), | |
249 | harmony_hp_jack_pins); | |
250 | snd_soc_jack_add_gpios(&harmony_hp_jack, | |
251 | ARRAY_SIZE(harmony_hp_jack_gpios), | |
252 | harmony_hp_jack_gpios); | |
253 | ||
41b5f9b3 SW |
254 | snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE, |
255 | &harmony_mic_jack); | |
256 | snd_soc_jack_add_pins(&harmony_mic_jack, | |
257 | ARRAY_SIZE(harmony_mic_jack_pins), | |
258 | harmony_mic_jack_pins); | |
259 | wm8903_mic_detect(codec, &harmony_mic_jack, SND_JACK_MICROPHONE, 0); | |
260 | ||
261 | snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); | |
262 | ||
0d6cdca7 SW |
263 | snd_soc_dapm_nc_pin(dapm, "IN3L"); |
264 | snd_soc_dapm_nc_pin(dapm, "IN3R"); | |
265 | snd_soc_dapm_nc_pin(dapm, "LINEOUTL"); | |
266 | snd_soc_dapm_nc_pin(dapm, "LINEOUTR"); | |
267 | ||
41b5f9b3 SW |
268 | snd_soc_dapm_sync(dapm); |
269 | ||
62ffac4d SW |
270 | return 0; |
271 | } | |
272 | ||
a8bf1ba1 SW |
273 | static struct snd_soc_dai_link harmony_wm8903_dai = { |
274 | .name = "WM8903", | |
275 | .stream_name = "WM8903 PCM", | |
4b592c91 | 276 | .codec_name = "wm8903.0-001a", |
a8bf1ba1 SW |
277 | .platform_name = "tegra-pcm-audio", |
278 | .cpu_dai_name = "tegra-i2s.0", | |
279 | .codec_dai_name = "wm8903-hifi", | |
62ffac4d | 280 | .init = harmony_asoc_init, |
a8bf1ba1 SW |
281 | .ops = &harmony_asoc_ops, |
282 | }; | |
283 | ||
284 | static struct snd_soc_card snd_soc_harmony = { | |
285 | .name = "tegra-harmony", | |
286 | .dai_link = &harmony_wm8903_dai, | |
287 | .num_links = 1, | |
288 | }; | |
289 | ||
72de2b1a | 290 | static __devinit int tegra_snd_harmony_probe(struct platform_device *pdev) |
a8bf1ba1 | 291 | { |
72de2b1a SW |
292 | struct snd_soc_card *card = &snd_soc_harmony; |
293 | struct tegra_harmony *harmony; | |
4651d556 | 294 | struct tegra_wm8903_platform_data *pdata; |
a8bf1ba1 SW |
295 | int ret; |
296 | ||
297 | if (!machine_is_harmony()) { | |
72de2b1a | 298 | dev_err(&pdev->dev, "Not running on Tegra Harmony!\n"); |
a8bf1ba1 SW |
299 | return -ENODEV; |
300 | } | |
301 | ||
6e267645 SW |
302 | pdata = pdev->dev.platform_data; |
303 | if (!pdata) { | |
304 | dev_err(&pdev->dev, "no platform data supplied\n"); | |
305 | return -EINVAL; | |
306 | } | |
307 | ||
72de2b1a SW |
308 | harmony = kzalloc(sizeof(struct tegra_harmony), GFP_KERNEL); |
309 | if (!harmony) { | |
310 | dev_err(&pdev->dev, "Can't allocate tegra_harmony\n"); | |
311 | return -ENOMEM; | |
a8bf1ba1 SW |
312 | } |
313 | ||
6e267645 SW |
314 | harmony->pdata = pdata; |
315 | ||
d64e57ce | 316 | ret = tegra_asoc_utils_init(&harmony->util_data, &pdev->dev); |
72de2b1a SW |
317 | if (ret) |
318 | goto err_free_harmony; | |
a8bf1ba1 | 319 | |
72de2b1a SW |
320 | card->dev = &pdev->dev; |
321 | platform_set_drvdata(pdev, card); | |
322 | snd_soc_card_set_drvdata(card, harmony); | |
a8bf1ba1 | 323 | |
72de2b1a | 324 | ret = snd_soc_register_card(card); |
a8bf1ba1 | 325 | if (ret) { |
72de2b1a | 326 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", |
a8bf1ba1 | 327 | ret); |
72de2b1a | 328 | goto err_clear_drvdata; |
a8bf1ba1 SW |
329 | } |
330 | ||
331 | return 0; | |
332 | ||
72de2b1a SW |
333 | err_clear_drvdata: |
334 | snd_soc_card_set_drvdata(card, NULL); | |
335 | platform_set_drvdata(pdev, NULL); | |
336 | card->dev = NULL; | |
d64e57ce | 337 | tegra_asoc_utils_fini(&harmony->util_data); |
72de2b1a SW |
338 | err_free_harmony: |
339 | kfree(harmony); | |
a8bf1ba1 SW |
340 | return ret; |
341 | } | |
a8bf1ba1 | 342 | |
72de2b1a | 343 | static int __devexit tegra_snd_harmony_remove(struct platform_device *pdev) |
a8bf1ba1 | 344 | { |
72de2b1a SW |
345 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
346 | struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card); | |
4651d556 | 347 | struct tegra_wm8903_platform_data *pdata = harmony->pdata; |
72de2b1a SW |
348 | |
349 | snd_soc_unregister_card(card); | |
350 | ||
351 | snd_soc_card_set_drvdata(card, NULL); | |
352 | platform_set_drvdata(pdev, NULL); | |
353 | card->dev = NULL; | |
a8bf1ba1 | 354 | |
d64e57ce | 355 | tegra_asoc_utils_fini(&harmony->util_data); |
72de2b1a | 356 | |
bf1b1328 SW |
357 | if (harmony->gpio_requested & GPIO_EXT_MIC_EN) |
358 | gpio_free(pdata->gpio_ext_mic_en); | |
359 | if (harmony->gpio_requested & GPIO_INT_MIC_EN) | |
360 | gpio_free(pdata->gpio_int_mic_en); | |
361 | if (harmony->gpio_requested & GPIO_SPKR_EN) | |
6e267645 SW |
362 | gpio_free(pdata->gpio_spkr_en); |
363 | ||
72de2b1a SW |
364 | kfree(harmony); |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
369 | static struct platform_driver tegra_snd_harmony_driver = { | |
370 | .driver = { | |
371 | .name = DRV_NAME, | |
372 | .owner = THIS_MODULE, | |
373 | }, | |
374 | .probe = tegra_snd_harmony_probe, | |
375 | .remove = __devexit_p(tegra_snd_harmony_remove), | |
376 | }; | |
377 | ||
378 | static int __init snd_tegra_harmony_init(void) | |
379 | { | |
380 | return platform_driver_register(&tegra_snd_harmony_driver); | |
381 | } | |
382 | module_init(snd_tegra_harmony_init); | |
383 | ||
384 | static void __exit snd_tegra_harmony_exit(void) | |
385 | { | |
386 | platform_driver_unregister(&tegra_snd_harmony_driver); | |
a8bf1ba1 | 387 | } |
72de2b1a | 388 | module_exit(snd_tegra_harmony_exit); |
a8bf1ba1 SW |
389 | |
390 | MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); | |
391 | MODULE_DESCRIPTION("Harmony machine ASoC driver"); | |
392 | MODULE_LICENSE("GPL"); | |
8eb34207 | 393 | MODULE_ALIAS("platform:" DRV_NAME); |