1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * SoC audio for HTC Magician
4 *
5 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
6 *
7 * based on spitz.c,
8 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
9 * Richard Purdie <richard@openedhand.com>
10 */
11
12 #include <linux/module.h>
13 #include <linux/timer.h>
14 #include <linux/interrupt.h>
15 #include <linux/platform_device.h>
16 #include <linux/delay.h>
17 #include <linux/gpio.h>
18 #include <linux/i2c.h>
19
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/uda1380.h>
25
26 #include <mach/magician.h>
27 #include <asm/mach-types.h>
28 #include "../codecs/uda1380.h"
29 #include "pxa2xx-i2s.h"
30 #include "pxa-ssp.h"
31
32 #define MAGICIAN_MIC 0
33 #define MAGICIAN_MIC_EXT 1
34
35 static int magician_hp_switch;
36 static int magician_spk_switch = 1;
37 static int magician_in_sel = MAGICIAN_MIC;
38
magician_ext_control(struct snd_soc_dapm_context * dapm)39 static void magician_ext_control(struct snd_soc_dapm_context *dapm)
40 {
41
42 snd_soc_dapm_mutex_lock(dapm);
43
44 if (magician_spk_switch)
45 snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
46 else
47 snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
48 if (magician_hp_switch)
49 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
50 else
51 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
52
53 switch (magician_in_sel) {
54 case MAGICIAN_MIC:
55 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
56 snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
57 break;
58 case MAGICIAN_MIC_EXT:
59 snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
60 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
61 break;
62 }
63
64 snd_soc_dapm_sync_unlocked(dapm);
65
66 snd_soc_dapm_mutex_unlock(dapm);
67 }
68
magician_startup(struct snd_pcm_substream * substream)69 static int magician_startup(struct snd_pcm_substream *substream)
70 {
71 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
72
73 /* check the jack status at stream startup */
74 magician_ext_control(&rtd->card->dapm);
75
76 return 0;
77 }
78
79 /*
80 * Magician uses SSP port for playback.
81 */
magician_playback_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)82 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
83 struct snd_pcm_hw_params *params)
84 {
85 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
86 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
87 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
88 unsigned int width;
89 int ret = 0;
90
91 /* set codec DAI configuration */
92 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
93 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
94 if (ret < 0)
95 return ret;
96
97 /* set cpu DAI configuration */
98 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
99 SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
100 if (ret < 0)
101 return ret;
102
103 width = snd_pcm_format_physical_width(params_format(params));
104 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
105 if (ret < 0)
106 return ret;
107
108 /* set audio clock as clock source */
109 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
110 SND_SOC_CLOCK_OUT);
111 if (ret < 0)
112 return ret;
113
114 return 0;
115 }
116
117 /*
118 * Magician uses I2S for capture.
119 */
magician_capture_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)120 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
121 struct snd_pcm_hw_params *params)
122 {
123 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
124 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
125 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
126 int ret = 0;
127
128 /* set codec DAI configuration */
129 ret = snd_soc_dai_set_fmt(codec_dai,
130 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
131 SND_SOC_DAIFMT_CBS_CFS);
132 if (ret < 0)
133 return ret;
134
135 /* set cpu DAI configuration */
136 ret = snd_soc_dai_set_fmt(cpu_dai,
137 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
138 SND_SOC_DAIFMT_CBS_CFS);
139 if (ret < 0)
140 return ret;
141
142 /* set the I2S system clock as output */
143 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
144 SND_SOC_CLOCK_OUT);
145 if (ret < 0)
146 return ret;
147
148 return 0;
149 }
150
151 static const struct snd_soc_ops magician_capture_ops = {
152 .startup = magician_startup,
153 .hw_params = magician_capture_hw_params,
154 };
155
156 static const struct snd_soc_ops magician_playback_ops = {
157 .startup = magician_startup,
158 .hw_params = magician_playback_hw_params,
159 };
160
magician_get_hp(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)161 static int magician_get_hp(struct snd_kcontrol *kcontrol,
162 struct snd_ctl_elem_value *ucontrol)
163 {
164 ucontrol->value.integer.value[0] = magician_hp_switch;
165 return 0;
166 }
167
magician_set_hp(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)168 static int magician_set_hp(struct snd_kcontrol *kcontrol,
169 struct snd_ctl_elem_value *ucontrol)
170 {
171 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
172
173 if (magician_hp_switch == ucontrol->value.integer.value[0])
174 return 0;
175
176 magician_hp_switch = ucontrol->value.integer.value[0];
177 magician_ext_control(&card->dapm);
178 return 1;
179 }
180
magician_get_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)181 static int magician_get_spk(struct snd_kcontrol *kcontrol,
182 struct snd_ctl_elem_value *ucontrol)
183 {
184 ucontrol->value.integer.value[0] = magician_spk_switch;
185 return 0;
186 }
187
magician_set_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)188 static int magician_set_spk(struct snd_kcontrol *kcontrol,
189 struct snd_ctl_elem_value *ucontrol)
190 {
191 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
192
193 if (magician_spk_switch == ucontrol->value.integer.value[0])
194 return 0;
195
196 magician_spk_switch = ucontrol->value.integer.value[0];
197 magician_ext_control(&card->dapm);
198 return 1;
199 }
200
magician_get_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)201 static int magician_get_input(struct snd_kcontrol *kcontrol,
202 struct snd_ctl_elem_value *ucontrol)
203 {
204 ucontrol->value.enumerated.item[0] = magician_in_sel;
205 return 0;
206 }
207
magician_set_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)208 static int magician_set_input(struct snd_kcontrol *kcontrol,
209 struct snd_ctl_elem_value *ucontrol)
210 {
211 if (magician_in_sel == ucontrol->value.enumerated.item[0])
212 return 0;
213
214 magician_in_sel = ucontrol->value.enumerated.item[0];
215
216 switch (magician_in_sel) {
217 case MAGICIAN_MIC:
218 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
219 break;
220 case MAGICIAN_MIC_EXT:
221 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
222 }
223
224 return 1;
225 }
226
magician_spk_power(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)227 static int magician_spk_power(struct snd_soc_dapm_widget *w,
228 struct snd_kcontrol *k, int event)
229 {
230 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
231 return 0;
232 }
233
magician_hp_power(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)234 static int magician_hp_power(struct snd_soc_dapm_widget *w,
235 struct snd_kcontrol *k, int event)
236 {
237 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
238 return 0;
239 }
240
magician_mic_bias(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)241 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
242 struct snd_kcontrol *k, int event)
243 {
244 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
245 return 0;
246 }
247
248 /* magician machine dapm widgets */
249 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
250 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
251 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
252 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
253 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
254 };
255
256 /* magician machine audio_map */
257 static const struct snd_soc_dapm_route audio_map[] = {
258
259 /* Headphone connected to VOUTL, VOUTR */
260 {"Headphone Jack", NULL, "VOUTL"},
261 {"Headphone Jack", NULL, "VOUTR"},
262
263 /* Speaker connected to VOUTL, VOUTR */
264 {"Speaker", NULL, "VOUTL"},
265 {"Speaker", NULL, "VOUTR"},
266
267 /* Mics are connected to VINM */
268 {"VINM", NULL, "Headset Mic"},
269 {"VINM", NULL, "Call Mic"},
270 };
271
272 static const char * const input_select[] = {"Call Mic", "Headset Mic"};
273 static const struct soc_enum magician_in_sel_enum =
274 SOC_ENUM_SINGLE_EXT(2, input_select);
275
276 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
277 SOC_SINGLE_BOOL_EXT("Headphone Switch",
278 (unsigned long)&magician_hp_switch,
279 magician_get_hp, magician_set_hp),
280 SOC_SINGLE_BOOL_EXT("Speaker Switch",
281 (unsigned long)&magician_spk_switch,
282 magician_get_spk, magician_set_spk),
283 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
284 magician_get_input, magician_set_input),
285 };
286
287 /* magician digital audio interface glue - connects codec <--> CPU */
288 SND_SOC_DAILINK_DEFS(playback,
289 DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")),
290 DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
291 "uda1380-hifi-playback")),
292 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
293
294 SND_SOC_DAILINK_DEFS(capture,
295 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
296 DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
297 "uda1380-hifi-capture")),
298 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
299
300 static struct snd_soc_dai_link magician_dai[] = {
301 {
302 .name = "uda1380",
303 .stream_name = "UDA1380 Playback",
304 .ops = &magician_playback_ops,
305 SND_SOC_DAILINK_REG(playback),
306 },
307 {
308 .name = "uda1380",
309 .stream_name = "UDA1380 Capture",
310 .ops = &magician_capture_ops,
311 SND_SOC_DAILINK_REG(capture),
312 }
313 };
314
315 /* magician audio machine driver */
316 static struct snd_soc_card snd_soc_card_magician = {
317 .name = "Magician",
318 .owner = THIS_MODULE,
319 .dai_link = magician_dai,
320 .num_links = ARRAY_SIZE(magician_dai),
321
322 .controls = uda1380_magician_controls,
323 .num_controls = ARRAY_SIZE(uda1380_magician_controls),
324 .dapm_widgets = uda1380_dapm_widgets,
325 .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
326 .dapm_routes = audio_map,
327 .num_dapm_routes = ARRAY_SIZE(audio_map),
328 .fully_routed = true,
329 };
330
331 static struct platform_device *magician_snd_device;
332
333 /*
334 * FIXME: move into magician board file once merged into the pxa tree
335 */
336 static struct uda1380_platform_data uda1380_info = {
337 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
338 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
339 .dac_clk = UDA1380_DAC_CLK_WSPLL,
340 };
341
342 static struct i2c_board_info i2c_board_info[] = {
343 {
344 I2C_BOARD_INFO("uda1380", 0x18),
345 .platform_data = &uda1380_info,
346 },
347 };
348
magician_init(void)349 static int __init magician_init(void)
350 {
351 int ret;
352 struct i2c_adapter *adapter;
353 struct i2c_client *client;
354
355 if (!machine_is_magician())
356 return -ENODEV;
357
358 adapter = i2c_get_adapter(0);
359 if (!adapter)
360 return -ENODEV;
361 client = i2c_new_client_device(adapter, i2c_board_info);
362 i2c_put_adapter(adapter);
363 if (IS_ERR(client))
364 return PTR_ERR(client);
365
366 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
367 if (ret)
368 goto err_request_spk;
369 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
370 if (ret)
371 goto err_request_ep;
372 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
373 if (ret)
374 goto err_request_mic;
375 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
376 if (ret)
377 goto err_request_in_sel0;
378 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
379 if (ret)
380 goto err_request_in_sel1;
381
382 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
383
384 magician_snd_device = platform_device_alloc("soc-audio", -1);
385 if (!magician_snd_device) {
386 ret = -ENOMEM;
387 goto err_pdev;
388 }
389
390 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
391 ret = platform_device_add(magician_snd_device);
392 if (ret) {
393 platform_device_put(magician_snd_device);
394 goto err_pdev;
395 }
396
397 return 0;
398
399 err_pdev:
400 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
401 err_request_in_sel1:
402 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
403 err_request_in_sel0:
404 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
405 err_request_mic:
406 gpio_free(EGPIO_MAGICIAN_EP_POWER);
407 err_request_ep:
408 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
409 err_request_spk:
410 return ret;
411 }
412
magician_exit(void)413 static void __exit magician_exit(void)
414 {
415 platform_device_unregister(magician_snd_device);
416
417 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
418 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
419 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
420
421 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
422 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
423 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
424 gpio_free(EGPIO_MAGICIAN_EP_POWER);
425 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
426 }
427
428 module_init(magician_init);
429 module_exit(magician_exit);
430
431 MODULE_AUTHOR("Philipp Zabel");
432 MODULE_DESCRIPTION("ALSA SoC Magician");
433 MODULE_LICENSE("GPL");
434