1 /*
2 * SoC audio for HTC Magician
3 *
4 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
5 *
6 * based on spitz.c,
7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8 * Richard Purdie <richard@openedhand.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17 #include <linux/module.h>
18 #include <linux/timer.h>
19 #include <linux/interrupt.h>
20 #include <linux/platform_device.h>
21 #include <linux/delay.h>
22 #include <linux/gpio.h>
23 #include <linux/i2c.h>
24
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/uda1380.h>
30
31 #include <mach/magician.h>
32 #include <asm/mach-types.h>
33 #include "../codecs/uda1380.h"
34 #include "pxa2xx-i2s.h"
35 #include "pxa-ssp.h"
36
37 #define MAGICIAN_MIC 0
38 #define MAGICIAN_MIC_EXT 1
39
40 static int magician_hp_switch;
41 static int magician_spk_switch = 1;
42 static int magician_in_sel = MAGICIAN_MIC;
43
magician_ext_control(struct snd_soc_dapm_context * dapm)44 static void magician_ext_control(struct snd_soc_dapm_context *dapm)
45 {
46
47 snd_soc_dapm_mutex_lock(dapm);
48
49 if (magician_spk_switch)
50 snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
51 else
52 snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
53 if (magician_hp_switch)
54 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
55 else
56 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
57
58 switch (magician_in_sel) {
59 case MAGICIAN_MIC:
60 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
61 snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
62 break;
63 case MAGICIAN_MIC_EXT:
64 snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
65 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
66 break;
67 }
68
69 snd_soc_dapm_sync_unlocked(dapm);
70
71 snd_soc_dapm_mutex_unlock(dapm);
72 }
73
magician_startup(struct snd_pcm_substream * substream)74 static int magician_startup(struct snd_pcm_substream *substream)
75 {
76 struct snd_soc_pcm_runtime *rtd = substream->private_data;
77
78 /* check the jack status at stream startup */
79 magician_ext_control(&rtd->card->dapm);
80
81 return 0;
82 }
83
84 /*
85 * Magician uses SSP port for playback.
86 */
magician_playback_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)87 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
88 struct snd_pcm_hw_params *params)
89 {
90 struct snd_soc_pcm_runtime *rtd = substream->private_data;
91 struct snd_soc_dai *codec_dai = rtd->codec_dai;
92 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
93 unsigned int width;
94 int ret = 0;
95
96 /* set codec DAI configuration */
97 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
98 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
99 if (ret < 0)
100 return ret;
101
102 /* set cpu DAI configuration */
103 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
104 SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
105 if (ret < 0)
106 return ret;
107
108 width = snd_pcm_format_physical_width(params_format(params));
109 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
110 if (ret < 0)
111 return ret;
112
113 /* set audio clock as clock source */
114 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
115 SND_SOC_CLOCK_OUT);
116 if (ret < 0)
117 return ret;
118
119 return 0;
120 }
121
122 /*
123 * Magician uses I2S for capture.
124 */
magician_capture_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)125 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
126 struct snd_pcm_hw_params *params)
127 {
128 struct snd_soc_pcm_runtime *rtd = substream->private_data;
129 struct snd_soc_dai *codec_dai = rtd->codec_dai;
130 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
131 int ret = 0;
132
133 /* set codec DAI configuration */
134 ret = snd_soc_dai_set_fmt(codec_dai,
135 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
136 SND_SOC_DAIFMT_CBS_CFS);
137 if (ret < 0)
138 return ret;
139
140 /* set cpu DAI configuration */
141 ret = snd_soc_dai_set_fmt(cpu_dai,
142 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
143 SND_SOC_DAIFMT_CBS_CFS);
144 if (ret < 0)
145 return ret;
146
147 /* set the I2S system clock as output */
148 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
149 SND_SOC_CLOCK_OUT);
150 if (ret < 0)
151 return ret;
152
153 return 0;
154 }
155
156 static const struct snd_soc_ops magician_capture_ops = {
157 .startup = magician_startup,
158 .hw_params = magician_capture_hw_params,
159 };
160
161 static const struct snd_soc_ops magician_playback_ops = {
162 .startup = magician_startup,
163 .hw_params = magician_playback_hw_params,
164 };
165
magician_get_hp(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)166 static int magician_get_hp(struct snd_kcontrol *kcontrol,
167 struct snd_ctl_elem_value *ucontrol)
168 {
169 ucontrol->value.integer.value[0] = magician_hp_switch;
170 return 0;
171 }
172
magician_set_hp(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)173 static int magician_set_hp(struct snd_kcontrol *kcontrol,
174 struct snd_ctl_elem_value *ucontrol)
175 {
176 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
177
178 if (magician_hp_switch == ucontrol->value.integer.value[0])
179 return 0;
180
181 magician_hp_switch = ucontrol->value.integer.value[0];
182 magician_ext_control(&card->dapm);
183 return 1;
184 }
185
magician_get_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)186 static int magician_get_spk(struct snd_kcontrol *kcontrol,
187 struct snd_ctl_elem_value *ucontrol)
188 {
189 ucontrol->value.integer.value[0] = magician_spk_switch;
190 return 0;
191 }
192
magician_set_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)193 static int magician_set_spk(struct snd_kcontrol *kcontrol,
194 struct snd_ctl_elem_value *ucontrol)
195 {
196 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
197
198 if (magician_spk_switch == ucontrol->value.integer.value[0])
199 return 0;
200
201 magician_spk_switch = ucontrol->value.integer.value[0];
202 magician_ext_control(&card->dapm);
203 return 1;
204 }
205
magician_get_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)206 static int magician_get_input(struct snd_kcontrol *kcontrol,
207 struct snd_ctl_elem_value *ucontrol)
208 {
209 ucontrol->value.enumerated.item[0] = magician_in_sel;
210 return 0;
211 }
212
magician_set_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)213 static int magician_set_input(struct snd_kcontrol *kcontrol,
214 struct snd_ctl_elem_value *ucontrol)
215 {
216 if (magician_in_sel == ucontrol->value.enumerated.item[0])
217 return 0;
218
219 magician_in_sel = ucontrol->value.enumerated.item[0];
220
221 switch (magician_in_sel) {
222 case MAGICIAN_MIC:
223 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
224 break;
225 case MAGICIAN_MIC_EXT:
226 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
227 }
228
229 return 1;
230 }
231
magician_spk_power(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)232 static int magician_spk_power(struct snd_soc_dapm_widget *w,
233 struct snd_kcontrol *k, int event)
234 {
235 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
236 return 0;
237 }
238
magician_hp_power(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)239 static int magician_hp_power(struct snd_soc_dapm_widget *w,
240 struct snd_kcontrol *k, int event)
241 {
242 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
243 return 0;
244 }
245
magician_mic_bias(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)246 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
247 struct snd_kcontrol *k, int event)
248 {
249 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
250 return 0;
251 }
252
253 /* magician machine dapm widgets */
254 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
255 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
256 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
257 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
258 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
259 };
260
261 /* magician machine audio_map */
262 static const struct snd_soc_dapm_route audio_map[] = {
263
264 /* Headphone connected to VOUTL, VOUTR */
265 {"Headphone Jack", NULL, "VOUTL"},
266 {"Headphone Jack", NULL, "VOUTR"},
267
268 /* Speaker connected to VOUTL, VOUTR */
269 {"Speaker", NULL, "VOUTL"},
270 {"Speaker", NULL, "VOUTR"},
271
272 /* Mics are connected to VINM */
273 {"VINM", NULL, "Headset Mic"},
274 {"VINM", NULL, "Call Mic"},
275 };
276
277 static const char * const input_select[] = {"Call Mic", "Headset Mic"};
278 static const struct soc_enum magician_in_sel_enum =
279 SOC_ENUM_SINGLE_EXT(2, input_select);
280
281 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
282 SOC_SINGLE_BOOL_EXT("Headphone Switch",
283 (unsigned long)&magician_hp_switch,
284 magician_get_hp, magician_set_hp),
285 SOC_SINGLE_BOOL_EXT("Speaker Switch",
286 (unsigned long)&magician_spk_switch,
287 magician_get_spk, magician_set_spk),
288 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
289 magician_get_input, magician_set_input),
290 };
291
292 /* magician digital audio interface glue - connects codec <--> CPU */
293 static struct snd_soc_dai_link magician_dai[] = {
294 {
295 .name = "uda1380",
296 .stream_name = "UDA1380 Playback",
297 .cpu_dai_name = "pxa-ssp-dai.0",
298 .codec_dai_name = "uda1380-hifi-playback",
299 .platform_name = "pxa-pcm-audio",
300 .codec_name = "uda1380-codec.0-0018",
301 .ops = &magician_playback_ops,
302 },
303 {
304 .name = "uda1380",
305 .stream_name = "UDA1380 Capture",
306 .cpu_dai_name = "pxa2xx-i2s",
307 .codec_dai_name = "uda1380-hifi-capture",
308 .platform_name = "pxa-pcm-audio",
309 .codec_name = "uda1380-codec.0-0018",
310 .ops = &magician_capture_ops,
311 }
312 };
313
314 /* magician audio machine driver */
315 static struct snd_soc_card snd_soc_card_magician = {
316 .name = "Magician",
317 .owner = THIS_MODULE,
318 .dai_link = magician_dai,
319 .num_links = ARRAY_SIZE(magician_dai),
320
321 .controls = uda1380_magician_controls,
322 .num_controls = ARRAY_SIZE(uda1380_magician_controls),
323 .dapm_widgets = uda1380_dapm_widgets,
324 .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
325 .dapm_routes = audio_map,
326 .num_dapm_routes = ARRAY_SIZE(audio_map),
327 .fully_routed = true,
328 };
329
330 static struct platform_device *magician_snd_device;
331
332 /*
333 * FIXME: move into magician board file once merged into the pxa tree
334 */
335 static struct uda1380_platform_data uda1380_info = {
336 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
337 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
338 .dac_clk = UDA1380_DAC_CLK_WSPLL,
339 };
340
341 static struct i2c_board_info i2c_board_info[] = {
342 {
343 I2C_BOARD_INFO("uda1380", 0x18),
344 .platform_data = &uda1380_info,
345 },
346 };
347
magician_init(void)348 static int __init magician_init(void)
349 {
350 int ret;
351 struct i2c_adapter *adapter;
352 struct i2c_client *client;
353
354 if (!machine_is_magician())
355 return -ENODEV;
356
357 adapter = i2c_get_adapter(0);
358 if (!adapter)
359 return -ENODEV;
360 client = i2c_new_device(adapter, i2c_board_info);
361 i2c_put_adapter(adapter);
362 if (!client)
363 return -ENODEV;
364
365 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
366 if (ret)
367 goto err_request_spk;
368 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
369 if (ret)
370 goto err_request_ep;
371 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
372 if (ret)
373 goto err_request_mic;
374 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
375 if (ret)
376 goto err_request_in_sel0;
377 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
378 if (ret)
379 goto err_request_in_sel1;
380
381 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
382
383 magician_snd_device = platform_device_alloc("soc-audio", -1);
384 if (!magician_snd_device) {
385 ret = -ENOMEM;
386 goto err_pdev;
387 }
388
389 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
390 ret = platform_device_add(magician_snd_device);
391 if (ret) {
392 platform_device_put(magician_snd_device);
393 goto err_pdev;
394 }
395
396 return 0;
397
398 err_pdev:
399 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
400 err_request_in_sel1:
401 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
402 err_request_in_sel0:
403 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
404 err_request_mic:
405 gpio_free(EGPIO_MAGICIAN_EP_POWER);
406 err_request_ep:
407 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
408 err_request_spk:
409 return ret;
410 }
411
magician_exit(void)412 static void __exit magician_exit(void)
413 {
414 platform_device_unregister(magician_snd_device);
415
416 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
417 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
418 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
419
420 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
421 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
422 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
423 gpio_free(EGPIO_MAGICIAN_EP_POWER);
424 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
425 }
426
427 module_init(magician_init);
428 module_exit(magician_exit);
429
430 MODULE_AUTHOR("Philipp Zabel");
431 MODULE_DESCRIPTION("ALSA SoC Magician");
432 MODULE_LICENSE("GPL");
433
