2 * Copyright (C) ST-Ericsson SA 2012
4 * Author: Ola Lilja <ola.o.lilja@stericsson.com>,
5 * Kristoffer Karlsson <kristoffer.karlsson@stericsson.com>
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.
15 #include <linux/module.h>
16 #include <linux/device.h>
18 #include <linux/clk.h>
19 #include <linux/mutex.h>
21 #include <sound/soc.h>
22 #include <sound/soc-dapm.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
26 #include "ux500_pcm.h"
27 #include "ux500_msp_dai.h"
28 #include "mop500_ab8500.h"
29 #include "../codecs/ab8500-codec.h"
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
38 #define DEF_TX_SLOTS TX_SLOT_STEREO
39 #define DEF_RX_SLOTS RX_SLOT_MONO
41 #define DRIVERMODE_NORMAL 0
42 #define DRIVERMODE_CODEC_ONLY 1
44 /* Slot configuration */
45 static unsigned int tx_slots = DEF_TX_SLOTS;
46 static unsigned int rx_slots = DEF_RX_SLOTS;
48 /* Configuration consistency parameters */
49 static DEFINE_MUTEX(mop500_ab8500_params_lock);
50 static unsigned long mop500_ab8500_usage;
51 static int mop500_ab8500_rate;
52 static int mop500_ab8500_channels;
55 static const char * const enum_mclk[] = {
64 static SOC_ENUM_SINGLE_EXT_DECL(soc_enum_mclk, enum_mclk);
66 /* Private data for machine-part MOP500<->AB8500 */
67 struct mop500_ab8500_drvdata {
70 struct clk *clk_ptr_intclk;
71 struct clk *clk_ptr_sysclk;
72 struct clk *clk_ptr_ulpclk;
75 static inline const char *get_mclk_str(enum mclk mclk_sel)
87 static int mop500_ab8500_set_mclk(struct device *dev,
88 struct mop500_ab8500_drvdata *drvdata)
93 if (IS_ERR(drvdata->clk_ptr_intclk)) {
95 "%s: ERROR: intclk not initialized!\n", __func__);
99 switch (drvdata->mclk_sel) {
101 clk_ptr = drvdata->clk_ptr_sysclk;
104 clk_ptr = drvdata->clk_ptr_ulpclk;
110 if (IS_ERR(clk_ptr)) {
111 dev_err(dev, "%s: ERROR: %s not initialized!\n", __func__,
112 get_mclk_str(drvdata->mclk_sel));
116 status = clk_set_parent(drvdata->clk_ptr_intclk, clk_ptr);
119 "%s: ERROR: Setting intclk parent to %s failed (ret = %d)!",
120 __func__, get_mclk_str(drvdata->mclk_sel), status);
123 "%s: intclk parent changed to %s.\n",
124 __func__, get_mclk_str(drvdata->mclk_sel));
133 static int mclk_input_control_get(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
136 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
137 struct mop500_ab8500_drvdata *drvdata =
138 snd_soc_card_get_drvdata(card);
140 ucontrol->value.enumerated.item[0] = drvdata->mclk_sel;
145 static int mclk_input_control_put(struct snd_kcontrol *kcontrol,
146 struct snd_ctl_elem_value *ucontrol)
148 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
149 struct mop500_ab8500_drvdata *drvdata =
150 snd_soc_card_get_drvdata(card);
151 unsigned int val = ucontrol->value.enumerated.item[0];
153 if (val > (unsigned int)MCLK_ULPCLK)
155 if (drvdata->mclk_sel == val)
158 drvdata->mclk_sel = val;
167 static struct snd_kcontrol_new mop500_ab8500_ctrls[] = {
168 SOC_ENUM_EXT("Master Clock Select",
170 mclk_input_control_get, mclk_input_control_put),
171 SOC_DAPM_PIN_SWITCH("Headset Left"),
172 SOC_DAPM_PIN_SWITCH("Headset Right"),
173 SOC_DAPM_PIN_SWITCH("Earpiece"),
174 SOC_DAPM_PIN_SWITCH("Speaker Left"),
175 SOC_DAPM_PIN_SWITCH("Speaker Right"),
176 SOC_DAPM_PIN_SWITCH("LineOut Left"),
177 SOC_DAPM_PIN_SWITCH("LineOut Right"),
178 SOC_DAPM_PIN_SWITCH("Vibra 1"),
179 SOC_DAPM_PIN_SWITCH("Vibra 2"),
180 SOC_DAPM_PIN_SWITCH("Mic 1"),
181 SOC_DAPM_PIN_SWITCH("Mic 2"),
182 SOC_DAPM_PIN_SWITCH("LineIn Left"),
183 SOC_DAPM_PIN_SWITCH("LineIn Right"),
184 SOC_DAPM_PIN_SWITCH("DMic 1"),
185 SOC_DAPM_PIN_SWITCH("DMic 2"),
186 SOC_DAPM_PIN_SWITCH("DMic 3"),
187 SOC_DAPM_PIN_SWITCH("DMic 4"),
188 SOC_DAPM_PIN_SWITCH("DMic 5"),
189 SOC_DAPM_PIN_SWITCH("DMic 6"),
194 static int mop500_ab8500_startup(struct snd_pcm_substream *substream)
196 struct snd_soc_pcm_runtime *rtd = substream->private_data;
198 /* Set audio-clock source */
199 return mop500_ab8500_set_mclk(rtd->card->dev,
200 snd_soc_card_get_drvdata(rtd->card));
203 static void mop500_ab8500_shutdown(struct snd_pcm_substream *substream)
205 struct snd_soc_pcm_runtime *rtd = substream->private_data;
206 struct device *dev = rtd->card->dev;
208 dev_dbg(dev, "%s: Enter\n", __func__);
210 /* Reset slots configuration to default(s) */
211 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
212 tx_slots = DEF_TX_SLOTS;
214 rx_slots = DEF_RX_SLOTS;
217 static int mop500_ab8500_hw_params(struct snd_pcm_substream *substream,
218 struct snd_pcm_hw_params *params)
220 struct snd_soc_pcm_runtime *rtd = substream->private_data;
221 struct snd_soc_dai *codec_dai = rtd->codec_dai;
222 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
223 struct device *dev = rtd->card->dev;
225 int channels, ret = 0, driver_mode, slots;
226 unsigned int sw_codec, sw_cpu;
229 dev_dbg(dev, "%s: Enter\n", __func__);
231 dev_dbg(dev, "%s: substream->pcm->name = %s\n"
232 "substream->pcm->id = %s.\n"
233 "substream->name = %s.\n"
234 "substream->number = %d.\n",
236 substream->pcm->name,
241 /* Ensure configuration consistency between DAIs */
242 mutex_lock(&mop500_ab8500_params_lock);
243 if (mop500_ab8500_usage) {
244 if (mop500_ab8500_rate != params_rate(params) ||
245 mop500_ab8500_channels != params_channels(params)) {
246 mutex_unlock(&mop500_ab8500_params_lock);
250 mop500_ab8500_rate = params_rate(params);
251 mop500_ab8500_channels = params_channels(params);
253 __set_bit(cpu_dai->id, &mop500_ab8500_usage);
254 mutex_unlock(&mop500_ab8500_params_lock);
256 channels = params_channels(params);
258 switch (params_format(params)) {
259 case SNDRV_PCM_FORMAT_S32_LE:
263 case SNDRV_PCM_FORMAT_S16_LE:
271 /* Setup codec depending on driver-mode */
273 driver_mode = DRIVERMODE_CODEC_ONLY;
275 driver_mode = DRIVERMODE_NORMAL;
276 dev_dbg(dev, "%s: Driver-mode: %s.\n", __func__,
277 (driver_mode == DRIVERMODE_NORMAL) ? "NORMAL" : "CODEC_ONLY");
281 if (driver_mode == DRIVERMODE_NORMAL) {
282 fmt = SND_SOC_DAIFMT_DSP_A |
283 SND_SOC_DAIFMT_CBM_CFM |
284 SND_SOC_DAIFMT_NB_NF |
287 fmt = SND_SOC_DAIFMT_DSP_A |
288 SND_SOC_DAIFMT_CBM_CFM |
289 SND_SOC_DAIFMT_NB_NF |
290 SND_SOC_DAIFMT_GATED;
293 ret = snd_soc_dai_set_fmt(codec_dai, fmt);
296 "%s: ERROR: snd_soc_dai_set_fmt failed for codec_dai (ret = %d)!\n",
301 ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
304 "%s: ERROR: snd_soc_dai_set_fmt failed for cpu_dai (ret = %d)!\n",
309 /* Setup TDM-slots */
311 is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
315 tx_slots = (is_playback) ? TX_SLOT_MONO : 0;
316 rx_slots = (is_playback) ? 0 : RX_SLOT_MONO;
320 tx_slots = (is_playback) ? TX_SLOT_STEREO : 0;
321 rx_slots = (is_playback) ? 0 : RX_SLOT_STEREO;
325 tx_slots = (is_playback) ? TX_SLOT_8CH : 0;
326 rx_slots = (is_playback) ? 0 : RX_SLOT_8CH;
332 if (driver_mode == DRIVERMODE_NORMAL)
337 dev_dbg(dev, "%s: CPU-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__,
339 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_slots, rx_slots, slots,
344 dev_dbg(dev, "%s: CODEC-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__,
346 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_slots, rx_slots, slots,
354 static int mop500_ab8500_hw_free(struct snd_pcm_substream *substream)
356 struct snd_soc_pcm_runtime *rtd = substream->private_data;
357 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
359 mutex_lock(&mop500_ab8500_params_lock);
360 __clear_bit(cpu_dai->id, &mop500_ab8500_usage);
361 mutex_unlock(&mop500_ab8500_params_lock);
366 struct snd_soc_ops mop500_ab8500_ops[] = {
368 .hw_params = mop500_ab8500_hw_params,
369 .hw_free = mop500_ab8500_hw_free,
370 .startup = mop500_ab8500_startup,
371 .shutdown = mop500_ab8500_shutdown,
375 int mop500_ab8500_machine_init(struct snd_soc_pcm_runtime *rtd)
377 struct snd_soc_codec *codec = rtd->codec;
378 struct device *dev = rtd->card->dev;
379 struct mop500_ab8500_drvdata *drvdata;
382 dev_dbg(dev, "%s Enter.\n", __func__);
384 /* Create driver private-data struct */
385 drvdata = devm_kzalloc(dev, sizeof(struct mop500_ab8500_drvdata),
387 snd_soc_card_set_drvdata(rtd->card, drvdata);
391 drvdata->clk_ptr_sysclk = clk_get(dev, "sysclk");
392 if (IS_ERR(drvdata->clk_ptr_sysclk))
393 dev_warn(dev, "%s: WARNING: clk_get failed for 'sysclk'!\n",
395 drvdata->clk_ptr_ulpclk = clk_get(dev, "ulpclk");
396 if (IS_ERR(drvdata->clk_ptr_ulpclk))
397 dev_warn(dev, "%s: WARNING: clk_get failed for 'ulpclk'!\n",
399 drvdata->clk_ptr_intclk = clk_get(dev, "intclk");
400 if (IS_ERR(drvdata->clk_ptr_intclk))
401 dev_warn(dev, "%s: WARNING: clk_get failed for 'intclk'!\n",
404 /* Set intclk default parent to ulpclk */
405 drvdata->mclk_sel = MCLK_ULPCLK;
406 ret = mop500_ab8500_set_mclk(dev, drvdata);
408 dev_warn(dev, "%s: WARNING: mop500_ab8500_set_mclk!\n",
411 drvdata->mclk_sel = MCLK_ULPCLK;
414 ret = snd_soc_add_card_controls(rtd->card, mop500_ab8500_ctrls,
415 ARRAY_SIZE(mop500_ab8500_ctrls));
417 pr_err("%s: Failed to add machine-controls (%d)!\n",
422 ret = snd_soc_dapm_disable_pin(&codec->dapm, "Earpiece");
423 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Left");
424 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Right");
425 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Left");
426 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Right");
427 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 1");
428 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 2");
429 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 1");
430 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 2");
431 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Left");
432 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Right");
433 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 1");
434 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 2");
435 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 3");
436 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 4");
437 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 5");
438 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 6");
443 void mop500_ab8500_remove(struct snd_soc_card *card)
445 struct mop500_ab8500_drvdata *drvdata = snd_soc_card_get_drvdata(card);
447 if (drvdata->clk_ptr_sysclk != NULL)
448 clk_put(drvdata->clk_ptr_sysclk);
449 if (drvdata->clk_ptr_ulpclk != NULL)
450 clk_put(drvdata->clk_ptr_ulpclk);
451 if (drvdata->clk_ptr_intclk != NULL)
452 clk_put(drvdata->clk_ptr_intclk);
454 snd_soc_card_set_drvdata(card, drvdata);