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e0690385 OL |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2012 | |
3 | * | |
4 | * Author: Ola Lilja <ola.o.lilja@stericsson.com>, | |
5 | * Kristoffer Karlsson <kristoffer.karlsson@stericsson.com> | |
6 | * for ST-Ericsson. | |
7 | * | |
8 | * License terms: | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as published | |
12 | * by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/clk.h> | |
19 | ||
e0690385 OL |
20 | #include <sound/soc.h> |
21 | #include <sound/soc-dapm.h> | |
22 | #include <sound/pcm.h> | |
23 | #include <sound/pcm_params.h> | |
24 | ||
25 | #include "ux500_pcm.h" | |
26 | #include "ux500_msp_dai.h" | |
27 | #include "../codecs/ab8500-codec.h" | |
28 | ||
29 | #define TX_SLOT_MONO 0x0008 | |
30 | #define TX_SLOT_STEREO 0x000a | |
31 | #define RX_SLOT_MONO 0x0001 | |
32 | #define RX_SLOT_STEREO 0x0003 | |
33 | #define TX_SLOT_8CH 0x00FF | |
34 | #define RX_SLOT_8CH 0x00FF | |
35 | ||
36 | #define DEF_TX_SLOTS TX_SLOT_STEREO | |
37 | #define DEF_RX_SLOTS RX_SLOT_MONO | |
38 | ||
39 | #define DRIVERMODE_NORMAL 0 | |
40 | #define DRIVERMODE_CODEC_ONLY 1 | |
41 | ||
42 | /* Slot configuration */ | |
43 | static unsigned int tx_slots = DEF_TX_SLOTS; | |
44 | static unsigned int rx_slots = DEF_RX_SLOTS; | |
45 | ||
46 | /* Clocks */ | |
47 | static const char * const enum_mclk[] = { | |
48 | "SYSCLK", | |
49 | "ULPCLK" | |
50 | }; | |
51 | enum mclk { | |
52 | MCLK_SYSCLK, | |
53 | MCLK_ULPCLK, | |
54 | }; | |
55 | ||
56 | static SOC_ENUM_SINGLE_EXT_DECL(soc_enum_mclk, enum_mclk); | |
57 | ||
58 | /* Private data for machine-part MOP500<->AB8500 */ | |
59 | struct mop500_ab8500_drvdata { | |
60 | /* Clocks */ | |
61 | enum mclk mclk_sel; | |
62 | struct clk *clk_ptr_intclk; | |
63 | struct clk *clk_ptr_sysclk; | |
64 | struct clk *clk_ptr_ulpclk; | |
65 | }; | |
66 | ||
67 | static inline const char *get_mclk_str(enum mclk mclk_sel) | |
68 | { | |
69 | switch (mclk_sel) { | |
70 | case MCLK_SYSCLK: | |
71 | return "SYSCLK"; | |
72 | case MCLK_ULPCLK: | |
73 | return "ULPCLK"; | |
74 | default: | |
75 | return "Unknown"; | |
76 | } | |
77 | } | |
78 | ||
79 | static int mop500_ab8500_set_mclk(struct device *dev, | |
80 | struct mop500_ab8500_drvdata *drvdata) | |
81 | { | |
82 | int status; | |
83 | struct clk *clk_ptr; | |
84 | ||
85 | if (IS_ERR(drvdata->clk_ptr_intclk)) { | |
86 | dev_err(dev, | |
87 | "%s: ERROR: intclk not initialized!\n", __func__); | |
88 | return -EIO; | |
89 | } | |
90 | ||
91 | switch (drvdata->mclk_sel) { | |
92 | case MCLK_SYSCLK: | |
93 | clk_ptr = drvdata->clk_ptr_sysclk; | |
94 | break; | |
95 | case MCLK_ULPCLK: | |
96 | clk_ptr = drvdata->clk_ptr_ulpclk; | |
97 | break; | |
98 | default: | |
99 | return -EINVAL; | |
100 | } | |
101 | ||
102 | if (IS_ERR(clk_ptr)) { | |
103 | dev_err(dev, "%s: ERROR: %s not initialized!\n", __func__, | |
104 | get_mclk_str(drvdata->mclk_sel)); | |
105 | return -EIO; | |
106 | } | |
107 | ||
108 | status = clk_set_parent(drvdata->clk_ptr_intclk, clk_ptr); | |
109 | if (status) | |
110 | dev_err(dev, | |
111 | "%s: ERROR: Setting intclk parent to %s failed (ret = %d)!", | |
112 | __func__, get_mclk_str(drvdata->mclk_sel), status); | |
113 | else | |
114 | dev_dbg(dev, | |
115 | "%s: intclk parent changed to %s.\n", | |
116 | __func__, get_mclk_str(drvdata->mclk_sel)); | |
117 | ||
118 | return status; | |
119 | } | |
120 | ||
121 | /* | |
122 | * Control-events | |
123 | */ | |
124 | ||
125 | static int mclk_input_control_get(struct snd_kcontrol *kcontrol, | |
126 | struct snd_ctl_elem_value *ucontrol) | |
127 | { | |
128 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
129 | struct mop500_ab8500_drvdata *drvdata = | |
130 | snd_soc_card_get_drvdata(codec->card); | |
131 | ||
132 | ucontrol->value.enumerated.item[0] = drvdata->mclk_sel; | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | static int mclk_input_control_put(struct snd_kcontrol *kcontrol, | |
138 | struct snd_ctl_elem_value *ucontrol) | |
139 | { | |
140 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
141 | struct mop500_ab8500_drvdata *drvdata = | |
142 | snd_soc_card_get_drvdata(codec->card); | |
143 | unsigned int val = ucontrol->value.enumerated.item[0]; | |
144 | ||
145 | if (val > (unsigned int)MCLK_ULPCLK) | |
146 | return -EINVAL; | |
147 | if (drvdata->mclk_sel == val) | |
148 | return 0; | |
149 | ||
150 | drvdata->mclk_sel = val; | |
151 | ||
152 | return 1; | |
153 | } | |
154 | ||
155 | /* | |
156 | * Controls | |
157 | */ | |
158 | ||
159 | static struct snd_kcontrol_new mop500_ab8500_ctrls[] = { | |
160 | SOC_ENUM_EXT("Master Clock Select", | |
161 | soc_enum_mclk, | |
162 | mclk_input_control_get, mclk_input_control_put), | |
163 | /* Digital interface - Clocks */ | |
164 | SOC_SINGLE("Digital Interface Master Generator Switch", | |
165 | AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENMASTGEN, | |
166 | 1, 0), | |
167 | SOC_SINGLE("Digital Interface 0 Bit-clock Switch", | |
168 | AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK0, | |
169 | 1, 0), | |
170 | SOC_SINGLE("Digital Interface 1 Bit-clock Switch", | |
171 | AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK1, | |
172 | 1, 0), | |
173 | SOC_DAPM_PIN_SWITCH("Headset Left"), | |
174 | SOC_DAPM_PIN_SWITCH("Headset Right"), | |
175 | SOC_DAPM_PIN_SWITCH("Earpiece"), | |
176 | SOC_DAPM_PIN_SWITCH("Speaker Left"), | |
177 | SOC_DAPM_PIN_SWITCH("Speaker Right"), | |
178 | SOC_DAPM_PIN_SWITCH("LineOut Left"), | |
179 | SOC_DAPM_PIN_SWITCH("LineOut Right"), | |
180 | SOC_DAPM_PIN_SWITCH("Vibra 1"), | |
181 | SOC_DAPM_PIN_SWITCH("Vibra 2"), | |
182 | SOC_DAPM_PIN_SWITCH("Mic 1"), | |
183 | SOC_DAPM_PIN_SWITCH("Mic 2"), | |
184 | SOC_DAPM_PIN_SWITCH("LineIn Left"), | |
185 | SOC_DAPM_PIN_SWITCH("LineIn Right"), | |
186 | SOC_DAPM_PIN_SWITCH("DMic 1"), | |
187 | SOC_DAPM_PIN_SWITCH("DMic 2"), | |
188 | SOC_DAPM_PIN_SWITCH("DMic 3"), | |
189 | SOC_DAPM_PIN_SWITCH("DMic 4"), | |
190 | SOC_DAPM_PIN_SWITCH("DMic 5"), | |
191 | SOC_DAPM_PIN_SWITCH("DMic 6"), | |
192 | }; | |
193 | ||
194 | /* ASoC */ | |
195 | ||
196 | int mop500_ab8500_startup(struct snd_pcm_substream *substream) | |
197 | { | |
198 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
199 | ||
200 | /* Set audio-clock source */ | |
201 | return mop500_ab8500_set_mclk(rtd->card->dev, | |
202 | snd_soc_card_get_drvdata(rtd->card)); | |
203 | } | |
204 | ||
205 | void mop500_ab8500_shutdown(struct snd_pcm_substream *substream) | |
206 | { | |
207 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
208 | struct device *dev = rtd->card->dev; | |
209 | ||
210 | dev_dbg(dev, "%s: Enter\n", __func__); | |
211 | ||
212 | /* Reset slots configuration to default(s) */ | |
213 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
214 | tx_slots = DEF_TX_SLOTS; | |
215 | else | |
216 | rx_slots = DEF_RX_SLOTS; | |
217 | } | |
218 | ||
219 | int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, | |
220 | struct snd_pcm_hw_params *params) | |
221 | { | |
222 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
223 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
224 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
225 | struct device *dev = rtd->card->dev; | |
226 | unsigned int fmt; | |
227 | int channels, ret = 0, driver_mode, slots; | |
228 | unsigned int sw_codec, sw_cpu; | |
229 | bool is_playback; | |
230 | ||
231 | dev_dbg(dev, "%s: Enter\n", __func__); | |
232 | ||
233 | dev_dbg(dev, "%s: substream->pcm->name = %s\n" | |
234 | "substream->pcm->id = %s.\n" | |
235 | "substream->name = %s.\n" | |
236 | "substream->number = %d.\n", | |
237 | __func__, | |
238 | substream->pcm->name, | |
239 | substream->pcm->id, | |
240 | substream->name, | |
241 | substream->number); | |
242 | ||
243 | channels = params_channels(params); | |
244 | ||
245 | switch (params_format(params)) { | |
246 | case SNDRV_PCM_FORMAT_S32_LE: | |
247 | sw_cpu = 32; | |
248 | break; | |
249 | ||
250 | case SNDRV_PCM_FORMAT_S16_LE: | |
251 | sw_cpu = 16; | |
252 | break; | |
253 | ||
254 | default: | |
255 | return -EINVAL; | |
256 | } | |
257 | ||
258 | /* Setup codec depending on driver-mode */ | |
259 | if (channels == 8) | |
260 | driver_mode = DRIVERMODE_CODEC_ONLY; | |
261 | else | |
262 | driver_mode = DRIVERMODE_NORMAL; | |
263 | dev_dbg(dev, "%s: Driver-mode: %s.\n", __func__, | |
264 | (driver_mode == DRIVERMODE_NORMAL) ? "NORMAL" : "CODEC_ONLY"); | |
265 | ||
266 | /* Setup format */ | |
267 | ||
268 | if (driver_mode == DRIVERMODE_NORMAL) { | |
269 | fmt = SND_SOC_DAIFMT_DSP_A | | |
270 | SND_SOC_DAIFMT_CBM_CFM | | |
271 | SND_SOC_DAIFMT_NB_NF | | |
272 | SND_SOC_DAIFMT_CONT; | |
273 | } else { | |
274 | fmt = SND_SOC_DAIFMT_DSP_A | | |
275 | SND_SOC_DAIFMT_CBM_CFM | | |
276 | SND_SOC_DAIFMT_NB_NF | | |
277 | SND_SOC_DAIFMT_GATED; | |
278 | } | |
279 | ||
280 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); | |
281 | if (ret < 0) { | |
282 | dev_err(dev, | |
283 | "%s: ERROR: snd_soc_dai_set_fmt failed for codec_dai (ret = %d)!\n", | |
284 | __func__, ret); | |
285 | return ret; | |
286 | } | |
287 | ||
288 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); | |
289 | if (ret < 0) { | |
290 | dev_err(dev, | |
291 | "%s: ERROR: snd_soc_dai_set_fmt failed for cpu_dai (ret = %d)!\n", | |
292 | __func__, ret); | |
293 | return ret; | |
294 | } | |
295 | ||
296 | /* Setup TDM-slots */ | |
297 | ||
298 | is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); | |
299 | switch (channels) { | |
300 | case 1: | |
301 | slots = 16; | |
302 | tx_slots = (is_playback) ? TX_SLOT_MONO : 0; | |
303 | rx_slots = (is_playback) ? 0 : RX_SLOT_MONO; | |
304 | break; | |
305 | case 2: | |
306 | slots = 16; | |
307 | tx_slots = (is_playback) ? TX_SLOT_STEREO : 0; | |
308 | rx_slots = (is_playback) ? 0 : RX_SLOT_STEREO; | |
309 | break; | |
310 | case 8: | |
311 | slots = 16; | |
312 | tx_slots = (is_playback) ? TX_SLOT_8CH : 0; | |
313 | rx_slots = (is_playback) ? 0 : RX_SLOT_8CH; | |
314 | break; | |
315 | default: | |
316 | return -EINVAL; | |
317 | } | |
318 | ||
319 | if (driver_mode == DRIVERMODE_NORMAL) | |
320 | sw_codec = sw_cpu; | |
321 | else | |
322 | sw_codec = 20; | |
323 | ||
324 | dev_dbg(dev, "%s: CPU-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__, | |
325 | tx_slots, rx_slots); | |
326 | ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_slots, rx_slots, slots, | |
327 | sw_cpu); | |
328 | if (ret) | |
329 | return ret; | |
330 | ||
331 | dev_dbg(dev, "%s: CODEC-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__, | |
332 | tx_slots, rx_slots); | |
333 | ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_slots, rx_slots, slots, | |
334 | sw_codec); | |
335 | if (ret) | |
336 | return ret; | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | struct snd_soc_ops mop500_ab8500_ops[] = { | |
342 | { | |
343 | .hw_params = mop500_ab8500_hw_params, | |
344 | .startup = mop500_ab8500_startup, | |
345 | .shutdown = mop500_ab8500_shutdown, | |
346 | } | |
347 | }; | |
348 | ||
349 | int mop500_ab8500_machine_init(struct snd_soc_pcm_runtime *rtd) | |
350 | { | |
351 | struct snd_soc_codec *codec = rtd->codec; | |
352 | struct device *dev = rtd->card->dev; | |
353 | struct mop500_ab8500_drvdata *drvdata; | |
354 | int ret; | |
355 | ||
356 | dev_dbg(dev, "%s Enter.\n", __func__); | |
357 | ||
358 | /* Create driver private-data struct */ | |
359 | drvdata = devm_kzalloc(dev, sizeof(struct mop500_ab8500_drvdata), | |
360 | GFP_KERNEL); | |
361 | snd_soc_card_set_drvdata(rtd->card, drvdata); | |
362 | ||
363 | /* Setup clocks */ | |
364 | ||
365 | drvdata->clk_ptr_sysclk = clk_get(dev, "sysclk"); | |
366 | if (IS_ERR(drvdata->clk_ptr_sysclk)) | |
367 | dev_warn(dev, "%s: WARNING: clk_get failed for 'sysclk'!\n", | |
368 | __func__); | |
369 | drvdata->clk_ptr_ulpclk = clk_get(dev, "ulpclk"); | |
370 | if (IS_ERR(drvdata->clk_ptr_ulpclk)) | |
371 | dev_warn(dev, "%s: WARNING: clk_get failed for 'ulpclk'!\n", | |
372 | __func__); | |
373 | drvdata->clk_ptr_intclk = clk_get(dev, "intclk"); | |
374 | if (IS_ERR(drvdata->clk_ptr_intclk)) | |
375 | dev_warn(dev, "%s: WARNING: clk_get failed for 'intclk'!\n", | |
376 | __func__); | |
377 | ||
378 | /* Set intclk default parent to ulpclk */ | |
379 | drvdata->mclk_sel = MCLK_ULPCLK; | |
380 | ret = mop500_ab8500_set_mclk(dev, drvdata); | |
381 | if (ret < 0) | |
382 | dev_warn(dev, "%s: WARNING: mop500_ab8500_set_mclk!\n", | |
383 | __func__); | |
384 | ||
385 | drvdata->mclk_sel = MCLK_ULPCLK; | |
386 | ||
387 | /* Add controls */ | |
388 | ret = snd_soc_add_codec_controls(codec, mop500_ab8500_ctrls, | |
389 | ARRAY_SIZE(mop500_ab8500_ctrls)); | |
390 | if (ret < 0) { | |
391 | pr_err("%s: Failed to add machine-controls (%d)!\n", | |
392 | __func__, ret); | |
393 | return ret; | |
394 | } | |
395 | ||
396 | ret = snd_soc_dapm_disable_pin(&codec->dapm, "Earpiece"); | |
397 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Left"); | |
398 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Right"); | |
399 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Left"); | |
400 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Right"); | |
401 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 1"); | |
402 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 2"); | |
403 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 1"); | |
404 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 2"); | |
405 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Left"); | |
406 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Right"); | |
407 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 1"); | |
408 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 2"); | |
409 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 3"); | |
410 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 4"); | |
411 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 5"); | |
412 | ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 6"); | |
413 | ||
414 | return ret; | |
415 | } | |
416 | ||
417 | void mop500_ab8500_remove(struct snd_soc_card *card) | |
418 | { | |
419 | struct mop500_ab8500_drvdata *drvdata = snd_soc_card_get_drvdata(card); | |
420 | ||
421 | if (drvdata->clk_ptr_sysclk != NULL) | |
422 | clk_put(drvdata->clk_ptr_sysclk); | |
423 | if (drvdata->clk_ptr_ulpclk != NULL) | |
424 | clk_put(drvdata->clk_ptr_ulpclk); | |
425 | if (drvdata->clk_ptr_intclk != NULL) | |
426 | clk_put(drvdata->clk_ptr_intclk); | |
427 | ||
428 | snd_soc_card_set_drvdata(card, drvdata); | |
429 | } |