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Diffstat (limited to 'sound/soc/ux500/mop500_ab8500.c')
-rw-r--r--sound/soc/ux500/mop500_ab8500.c431
1 files changed, 431 insertions, 0 deletions
diff --git a/sound/soc/ux500/mop500_ab8500.c b/sound/soc/ux500/mop500_ab8500.c
new file mode 100644
index 000000000000..78cce236693e
--- /dev/null
+++ b/sound/soc/ux500/mop500_ab8500.c
@@ -0,0 +1,431 @@
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
20#include <mach/hardware.h>
21
22#include <sound/soc.h>
23#include <sound/soc-dapm.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26
27#include "ux500_pcm.h"
28#include "ux500_msp_dai.h"
29#include "../codecs/ab8500-codec.h"
30
31#define TX_SLOT_MONO 0x0008
32#define TX_SLOT_STEREO 0x000a
33#define RX_SLOT_MONO 0x0001
34#define RX_SLOT_STEREO 0x0003
35#define TX_SLOT_8CH 0x00FF
36#define RX_SLOT_8CH 0x00FF
37
38#define DEF_TX_SLOTS TX_SLOT_STEREO
39#define DEF_RX_SLOTS RX_SLOT_MONO
40
41#define DRIVERMODE_NORMAL 0
42#define DRIVERMODE_CODEC_ONLY 1
43
44/* Slot configuration */
45static unsigned int tx_slots = DEF_TX_SLOTS;
46static unsigned int rx_slots = DEF_RX_SLOTS;
47
48/* Clocks */
49static const char * const enum_mclk[] = {
50 "SYSCLK",
51 "ULPCLK"
52};
53enum mclk {
54 MCLK_SYSCLK,
55 MCLK_ULPCLK,
56};
57
58static SOC_ENUM_SINGLE_EXT_DECL(soc_enum_mclk, enum_mclk);
59
60/* Private data for machine-part MOP500<->AB8500 */
61struct mop500_ab8500_drvdata {
62 /* Clocks */
63 enum mclk mclk_sel;
64 struct clk *clk_ptr_intclk;
65 struct clk *clk_ptr_sysclk;
66 struct clk *clk_ptr_ulpclk;
67};
68
69static inline const char *get_mclk_str(enum mclk mclk_sel)
70{
71 switch (mclk_sel) {
72 case MCLK_SYSCLK:
73 return "SYSCLK";
74 case MCLK_ULPCLK:
75 return "ULPCLK";
76 default:
77 return "Unknown";
78 }
79}
80
81static int mop500_ab8500_set_mclk(struct device *dev,
82 struct mop500_ab8500_drvdata *drvdata)
83{
84 int status;
85 struct clk *clk_ptr;
86
87 if (IS_ERR(drvdata->clk_ptr_intclk)) {
88 dev_err(dev,
89 "%s: ERROR: intclk not initialized!\n", __func__);
90 return -EIO;
91 }
92
93 switch (drvdata->mclk_sel) {
94 case MCLK_SYSCLK:
95 clk_ptr = drvdata->clk_ptr_sysclk;
96 break;
97 case MCLK_ULPCLK:
98 clk_ptr = drvdata->clk_ptr_ulpclk;
99 break;
100 default:
101 return -EINVAL;
102 }
103
104 if (IS_ERR(clk_ptr)) {
105 dev_err(dev, "%s: ERROR: %s not initialized!\n", __func__,
106 get_mclk_str(drvdata->mclk_sel));
107 return -EIO;
108 }
109
110 status = clk_set_parent(drvdata->clk_ptr_intclk, clk_ptr);
111 if (status)
112 dev_err(dev,
113 "%s: ERROR: Setting intclk parent to %s failed (ret = %d)!",
114 __func__, get_mclk_str(drvdata->mclk_sel), status);
115 else
116 dev_dbg(dev,
117 "%s: intclk parent changed to %s.\n",
118 __func__, get_mclk_str(drvdata->mclk_sel));
119
120 return status;
121}
122
123/*
124 * Control-events
125 */
126
127static int mclk_input_control_get(struct snd_kcontrol *kcontrol,
128 struct snd_ctl_elem_value *ucontrol)
129{
130 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
131 struct mop500_ab8500_drvdata *drvdata =
132 snd_soc_card_get_drvdata(codec->card);
133
134 ucontrol->value.enumerated.item[0] = drvdata->mclk_sel;
135
136 return 0;
137}
138
139static int mclk_input_control_put(struct snd_kcontrol *kcontrol,
140 struct snd_ctl_elem_value *ucontrol)
141{
142 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
143 struct mop500_ab8500_drvdata *drvdata =
144 snd_soc_card_get_drvdata(codec->card);
145 unsigned int val = ucontrol->value.enumerated.item[0];
146
147 if (val > (unsigned int)MCLK_ULPCLK)
148 return -EINVAL;
149 if (drvdata->mclk_sel == val)
150 return 0;
151
152 drvdata->mclk_sel = val;
153
154 return 1;
155}
156
157/*
158 * Controls
159 */
160
161static struct snd_kcontrol_new mop500_ab8500_ctrls[] = {
162 SOC_ENUM_EXT("Master Clock Select",
163 soc_enum_mclk,
164 mclk_input_control_get, mclk_input_control_put),
165 /* Digital interface - Clocks */
166 SOC_SINGLE("Digital Interface Master Generator Switch",
167 AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENMASTGEN,
168 1, 0),
169 SOC_SINGLE("Digital Interface 0 Bit-clock Switch",
170 AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK0,
171 1, 0),
172 SOC_SINGLE("Digital Interface 1 Bit-clock Switch",
173 AB8500_DIGIFCONF1, AB8500_DIGIFCONF1_ENFSBITCLK1,
174 1, 0),
175 SOC_DAPM_PIN_SWITCH("Headset Left"),
176 SOC_DAPM_PIN_SWITCH("Headset Right"),
177 SOC_DAPM_PIN_SWITCH("Earpiece"),
178 SOC_DAPM_PIN_SWITCH("Speaker Left"),
179 SOC_DAPM_PIN_SWITCH("Speaker Right"),
180 SOC_DAPM_PIN_SWITCH("LineOut Left"),
181 SOC_DAPM_PIN_SWITCH("LineOut Right"),
182 SOC_DAPM_PIN_SWITCH("Vibra 1"),
183 SOC_DAPM_PIN_SWITCH("Vibra 2"),
184 SOC_DAPM_PIN_SWITCH("Mic 1"),
185 SOC_DAPM_PIN_SWITCH("Mic 2"),
186 SOC_DAPM_PIN_SWITCH("LineIn Left"),
187 SOC_DAPM_PIN_SWITCH("LineIn Right"),
188 SOC_DAPM_PIN_SWITCH("DMic 1"),
189 SOC_DAPM_PIN_SWITCH("DMic 2"),
190 SOC_DAPM_PIN_SWITCH("DMic 3"),
191 SOC_DAPM_PIN_SWITCH("DMic 4"),
192 SOC_DAPM_PIN_SWITCH("DMic 5"),
193 SOC_DAPM_PIN_SWITCH("DMic 6"),
194};
195
196/* ASoC */
197
198int mop500_ab8500_startup(struct snd_pcm_substream *substream)
199{
200 struct snd_soc_pcm_runtime *rtd = substream->private_data;
201
202 /* Set audio-clock source */
203 return mop500_ab8500_set_mclk(rtd->card->dev,
204 snd_soc_card_get_drvdata(rtd->card));
205}
206
207void mop500_ab8500_shutdown(struct snd_pcm_substream *substream)
208{
209 struct snd_soc_pcm_runtime *rtd = substream->private_data;
210 struct device *dev = rtd->card->dev;
211
212 dev_dbg(dev, "%s: Enter\n", __func__);
213
214 /* Reset slots configuration to default(s) */
215 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
216 tx_slots = DEF_TX_SLOTS;
217 else
218 rx_slots = DEF_RX_SLOTS;
219}
220
221int mop500_ab8500_hw_params(struct snd_pcm_substream *substream,
222 struct snd_pcm_hw_params *params)
223{
224 struct snd_soc_pcm_runtime *rtd = substream->private_data;
225 struct snd_soc_dai *codec_dai = rtd->codec_dai;
226 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
227 struct device *dev = rtd->card->dev;
228 unsigned int fmt;
229 int channels, ret = 0, driver_mode, slots;
230 unsigned int sw_codec, sw_cpu;
231 bool is_playback;
232
233 dev_dbg(dev, "%s: Enter\n", __func__);
234
235 dev_dbg(dev, "%s: substream->pcm->name = %s\n"
236 "substream->pcm->id = %s.\n"
237 "substream->name = %s.\n"
238 "substream->number = %d.\n",
239 __func__,
240 substream->pcm->name,
241 substream->pcm->id,
242 substream->name,
243 substream->number);
244
245 channels = params_channels(params);
246
247 switch (params_format(params)) {
248 case SNDRV_PCM_FORMAT_S32_LE:
249 sw_cpu = 32;
250 break;
251
252 case SNDRV_PCM_FORMAT_S16_LE:
253 sw_cpu = 16;
254 break;
255
256 default:
257 return -EINVAL;
258 }
259
260 /* Setup codec depending on driver-mode */
261 if (channels == 8)
262 driver_mode = DRIVERMODE_CODEC_ONLY;
263 else
264 driver_mode = DRIVERMODE_NORMAL;
265 dev_dbg(dev, "%s: Driver-mode: %s.\n", __func__,
266 (driver_mode == DRIVERMODE_NORMAL) ? "NORMAL" : "CODEC_ONLY");
267
268 /* Setup format */
269
270 if (driver_mode == DRIVERMODE_NORMAL) {
271 fmt = SND_SOC_DAIFMT_DSP_A |
272 SND_SOC_DAIFMT_CBM_CFM |
273 SND_SOC_DAIFMT_NB_NF |
274 SND_SOC_DAIFMT_CONT;
275 } else {
276 fmt = SND_SOC_DAIFMT_DSP_A |
277 SND_SOC_DAIFMT_CBM_CFM |
278 SND_SOC_DAIFMT_NB_NF |
279 SND_SOC_DAIFMT_GATED;
280 }
281
282 ret = snd_soc_dai_set_fmt(codec_dai, fmt);
283 if (ret < 0) {
284 dev_err(dev,
285 "%s: ERROR: snd_soc_dai_set_fmt failed for codec_dai (ret = %d)!\n",
286 __func__, ret);
287 return ret;
288 }
289
290 ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
291 if (ret < 0) {
292 dev_err(dev,
293 "%s: ERROR: snd_soc_dai_set_fmt failed for cpu_dai (ret = %d)!\n",
294 __func__, ret);
295 return ret;
296 }
297
298 /* Setup TDM-slots */
299
300 is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
301 switch (channels) {
302 case 1:
303 slots = 16;
304 tx_slots = (is_playback) ? TX_SLOT_MONO : 0;
305 rx_slots = (is_playback) ? 0 : RX_SLOT_MONO;
306 break;
307 case 2:
308 slots = 16;
309 tx_slots = (is_playback) ? TX_SLOT_STEREO : 0;
310 rx_slots = (is_playback) ? 0 : RX_SLOT_STEREO;
311 break;
312 case 8:
313 slots = 16;
314 tx_slots = (is_playback) ? TX_SLOT_8CH : 0;
315 rx_slots = (is_playback) ? 0 : RX_SLOT_8CH;
316 break;
317 default:
318 return -EINVAL;
319 }
320
321 if (driver_mode == DRIVERMODE_NORMAL)
322 sw_codec = sw_cpu;
323 else
324 sw_codec = 20;
325
326 dev_dbg(dev, "%s: CPU-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__,
327 tx_slots, rx_slots);
328 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_slots, rx_slots, slots,
329 sw_cpu);
330 if (ret)
331 return ret;
332
333 dev_dbg(dev, "%s: CODEC-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__,
334 tx_slots, rx_slots);
335 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_slots, rx_slots, slots,
336 sw_codec);
337 if (ret)
338 return ret;
339
340 return 0;
341}
342
343struct snd_soc_ops mop500_ab8500_ops[] = {
344 {
345 .hw_params = mop500_ab8500_hw_params,
346 .startup = mop500_ab8500_startup,
347 .shutdown = mop500_ab8500_shutdown,
348 }
349};
350
351int mop500_ab8500_machine_init(struct snd_soc_pcm_runtime *rtd)
352{
353 struct snd_soc_codec *codec = rtd->codec;
354 struct device *dev = rtd->card->dev;
355 struct mop500_ab8500_drvdata *drvdata;
356 int ret;
357
358 dev_dbg(dev, "%s Enter.\n", __func__);
359
360 /* Create driver private-data struct */
361 drvdata = devm_kzalloc(dev, sizeof(struct mop500_ab8500_drvdata),
362 GFP_KERNEL);
363 snd_soc_card_set_drvdata(rtd->card, drvdata);
364
365 /* Setup clocks */
366
367 drvdata->clk_ptr_sysclk = clk_get(dev, "sysclk");
368 if (IS_ERR(drvdata->clk_ptr_sysclk))
369 dev_warn(dev, "%s: WARNING: clk_get failed for 'sysclk'!\n",
370 __func__);
371 drvdata->clk_ptr_ulpclk = clk_get(dev, "ulpclk");
372 if (IS_ERR(drvdata->clk_ptr_ulpclk))
373 dev_warn(dev, "%s: WARNING: clk_get failed for 'ulpclk'!\n",
374 __func__);
375 drvdata->clk_ptr_intclk = clk_get(dev, "intclk");
376 if (IS_ERR(drvdata->clk_ptr_intclk))
377 dev_warn(dev, "%s: WARNING: clk_get failed for 'intclk'!\n",
378 __func__);
379
380 /* Set intclk default parent to ulpclk */
381 drvdata->mclk_sel = MCLK_ULPCLK;
382 ret = mop500_ab8500_set_mclk(dev, drvdata);
383 if (ret < 0)
384 dev_warn(dev, "%s: WARNING: mop500_ab8500_set_mclk!\n",
385 __func__);
386
387 drvdata->mclk_sel = MCLK_ULPCLK;
388
389 /* Add controls */
390 ret = snd_soc_add_codec_controls(codec, mop500_ab8500_ctrls,
391 ARRAY_SIZE(mop500_ab8500_ctrls));
392 if (ret < 0) {
393 pr_err("%s: Failed to add machine-controls (%d)!\n",
394 __func__, ret);
395 return ret;
396 }
397
398 ret = snd_soc_dapm_disable_pin(&codec->dapm, "Earpiece");
399 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Left");
400 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Right");
401 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Left");
402 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Right");
403 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 1");
404 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 2");
405 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 1");
406 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 2");
407 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Left");
408 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Right");
409 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 1");
410 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 2");
411 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 3");
412 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 4");
413 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 5");
414 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 6");
415
416 return ret;
417}
418
419void mop500_ab8500_remove(struct snd_soc_card *card)
420{
421 struct mop500_ab8500_drvdata *drvdata = snd_soc_card_get_drvdata(card);
422
423 if (drvdata->clk_ptr_sysclk != NULL)
424 clk_put(drvdata->clk_ptr_sysclk);
425 if (drvdata->clk_ptr_ulpclk != NULL)
426 clk_put(drvdata->clk_ptr_ulpclk);
427 if (drvdata->clk_ptr_intclk != NULL)
428 clk_put(drvdata->clk_ptr_intclk);
429
430 snd_soc_card_set_drvdata(card, drvdata);
431}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 02:00:26 -0500