Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1 | /* |
| 2 | * soc-core.c -- ALSA SoC Audio Layer |
| 3 | * |
| 4 | * Copyright 2005 Wolfson Microelectronics PLC. |
Liam Girdwood | 0664d88 | 2006-12-18 14:39:02 +0100 | [diff] [blame] | 5 | * Copyright 2005 Openedhand Ltd. |
| 6 | * |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 7 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
Liam Girdwood | 0664d88 | 2006-12-18 14:39:02 +0100 | [diff] [blame] | 8 | * with code, comments and ideas from :- |
| 9 | * Richard Purdie <richard@openedhand.com> |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your |
| 14 | * option) any later version. |
| 15 | * |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 16 | * TODO: |
| 17 | * o Add hw rules to enforce rates, etc. |
| 18 | * o More testing with other codecs/machines. |
| 19 | * o Add more codecs and platforms to ensure good API coverage. |
| 20 | * o Support TDM on PCM and I2S |
| 21 | */ |
| 22 | |
| 23 | #include <linux/module.h> |
| 24 | #include <linux/moduleparam.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/delay.h> |
| 27 | #include <linux/pm.h> |
| 28 | #include <linux/bitops.h> |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 29 | #include <linux/debugfs.h> |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 30 | #include <linux/platform_device.h> |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 31 | #include <sound/core.h> |
| 32 | #include <sound/pcm.h> |
| 33 | #include <sound/pcm_params.h> |
| 34 | #include <sound/soc.h> |
| 35 | #include <sound/soc-dapm.h> |
| 36 | #include <sound/initval.h> |
| 37 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 38 | static DEFINE_MUTEX(pcm_mutex); |
| 39 | static DEFINE_MUTEX(io_mutex); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 40 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
| 41 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 42 | /* |
| 43 | * This is a timeout to do a DAPM powerdown after a stream is closed(). |
| 44 | * It can be used to eliminate pops between different playback streams, e.g. |
| 45 | * between two audio tracks. |
| 46 | */ |
| 47 | static int pmdown_time = 5000; |
| 48 | module_param(pmdown_time, int, 0); |
| 49 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); |
| 50 | |
Liam Girdwood | 965ac42 | 2007-01-31 14:14:57 +0100 | [diff] [blame] | 51 | /* |
| 52 | * This function forces any delayed work to be queued and run. |
| 53 | */ |
| 54 | static int run_delayed_work(struct delayed_work *dwork) |
| 55 | { |
| 56 | int ret; |
| 57 | |
| 58 | /* cancel any work waiting to be queued. */ |
| 59 | ret = cancel_delayed_work(dwork); |
| 60 | |
| 61 | /* if there was any work waiting then we run it now and |
| 62 | * wait for it's completion */ |
| 63 | if (ret) { |
| 64 | schedule_delayed_work(dwork, 0); |
| 65 | flush_scheduled_work(); |
| 66 | } |
| 67 | return ret; |
| 68 | } |
| 69 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 70 | #ifdef CONFIG_SND_SOC_AC97_BUS |
| 71 | /* unregister ac97 codec */ |
| 72 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) |
| 73 | { |
| 74 | if (codec->ac97->dev.bus) |
| 75 | device_unregister(&codec->ac97->dev); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | /* stop no dev release warning */ |
| 80 | static void soc_ac97_device_release(struct device *dev){} |
| 81 | |
| 82 | /* register ac97 codec to bus */ |
| 83 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) |
| 84 | { |
| 85 | int err; |
| 86 | |
| 87 | codec->ac97->dev.bus = &ac97_bus_type; |
| 88 | codec->ac97->dev.parent = NULL; |
| 89 | codec->ac97->dev.release = soc_ac97_device_release; |
| 90 | |
Kay Sievers | bb072bf | 2008-11-02 03:50:35 +0100 | [diff] [blame] | 91 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
| 92 | codec->card->number, 0, codec->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 93 | err = device_register(&codec->ac97->dev); |
| 94 | if (err < 0) { |
| 95 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); |
| 96 | codec->ac97->dev.bus = NULL; |
| 97 | return err; |
| 98 | } |
| 99 | return 0; |
| 100 | } |
| 101 | #endif |
| 102 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 103 | /* |
| 104 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is |
| 105 | * then initialized and any private data can be allocated. This also calls |
| 106 | * startup for the cpu DAI, platform, machine and codec DAI. |
| 107 | */ |
| 108 | static int soc_pcm_open(struct snd_pcm_substream *substream) |
| 109 | { |
| 110 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 111 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 112 | struct snd_soc_card *card = socdev->card; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 113 | struct snd_pcm_runtime *runtime = substream->runtime; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 114 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 115 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 116 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 117 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 118 | int ret = 0; |
| 119 | |
| 120 | mutex_lock(&pcm_mutex); |
| 121 | |
| 122 | /* startup the audio subsystem */ |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 123 | if (cpu_dai->ops.startup) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 124 | ret = cpu_dai->ops.startup(substream, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 125 | if (ret < 0) { |
| 126 | printk(KERN_ERR "asoc: can't open interface %s\n", |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 127 | cpu_dai->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 128 | goto out; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | if (platform->pcm_ops->open) { |
| 133 | ret = platform->pcm_ops->open(substream); |
| 134 | if (ret < 0) { |
| 135 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); |
| 136 | goto platform_err; |
| 137 | } |
| 138 | } |
| 139 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 140 | if (codec_dai->ops.startup) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 141 | ret = codec_dai->ops.startup(substream, codec_dai); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 142 | if (ret < 0) { |
| 143 | printk(KERN_ERR "asoc: can't open codec %s\n", |
| 144 | codec_dai->name); |
| 145 | goto codec_dai_err; |
| 146 | } |
| 147 | } |
| 148 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 149 | if (machine->ops && machine->ops->startup) { |
| 150 | ret = machine->ops->startup(substream); |
| 151 | if (ret < 0) { |
| 152 | printk(KERN_ERR "asoc: %s startup failed\n", machine->name); |
| 153 | goto machine_err; |
| 154 | } |
| 155 | } |
| 156 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 157 | /* Check that the codec and cpu DAI's are compatible */ |
| 158 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 159 | runtime->hw.rate_min = |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 160 | max(codec_dai->playback.rate_min, |
| 161 | cpu_dai->playback.rate_min); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 162 | runtime->hw.rate_max = |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 163 | min(codec_dai->playback.rate_max, |
| 164 | cpu_dai->playback.rate_max); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 165 | runtime->hw.channels_min = |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 166 | max(codec_dai->playback.channels_min, |
| 167 | cpu_dai->playback.channels_min); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 168 | runtime->hw.channels_max = |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 169 | min(codec_dai->playback.channels_max, |
| 170 | cpu_dai->playback.channels_max); |
| 171 | runtime->hw.formats = |
| 172 | codec_dai->playback.formats & cpu_dai->playback.formats; |
| 173 | runtime->hw.rates = |
| 174 | codec_dai->playback.rates & cpu_dai->playback.rates; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 175 | } else { |
| 176 | runtime->hw.rate_min = |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 177 | max(codec_dai->capture.rate_min, |
| 178 | cpu_dai->capture.rate_min); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 179 | runtime->hw.rate_max = |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 180 | min(codec_dai->capture.rate_max, |
| 181 | cpu_dai->capture.rate_max); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 182 | runtime->hw.channels_min = |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 183 | max(codec_dai->capture.channels_min, |
| 184 | cpu_dai->capture.channels_min); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 185 | runtime->hw.channels_max = |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 186 | min(codec_dai->capture.channels_max, |
| 187 | cpu_dai->capture.channels_max); |
| 188 | runtime->hw.formats = |
| 189 | codec_dai->capture.formats & cpu_dai->capture.formats; |
| 190 | runtime->hw.rates = |
| 191 | codec_dai->capture.rates & cpu_dai->capture.rates; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | snd_pcm_limit_hw_rates(runtime); |
| 195 | if (!runtime->hw.rates) { |
| 196 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 197 | codec_dai->name, cpu_dai->name); |
| 198 | goto machine_err; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 199 | } |
| 200 | if (!runtime->hw.formats) { |
| 201 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 202 | codec_dai->name, cpu_dai->name); |
| 203 | goto machine_err; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 204 | } |
| 205 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { |
| 206 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 207 | codec_dai->name, cpu_dai->name); |
| 208 | goto machine_err; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 209 | } |
| 210 | |
Mark Brown | f24368c | 2008-10-21 21:45:08 +0100 | [diff] [blame] | 211 | pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); |
| 212 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
| 213 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, |
| 214 | runtime->hw.channels_max); |
| 215 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, |
| 216 | runtime->hw.rate_max); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 217 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 218 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 219 | cpu_dai->playback.active = codec_dai->playback.active = 1; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 220 | else |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 221 | cpu_dai->capture.active = codec_dai->capture.active = 1; |
| 222 | cpu_dai->active = codec_dai->active = 1; |
| 223 | cpu_dai->runtime = runtime; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 224 | socdev->codec->active++; |
| 225 | mutex_unlock(&pcm_mutex); |
| 226 | return 0; |
| 227 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 228 | machine_err: |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 229 | if (machine->ops && machine->ops->shutdown) |
| 230 | machine->ops->shutdown(substream); |
| 231 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 232 | codec_dai_err: |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 233 | if (platform->pcm_ops->close) |
| 234 | platform->pcm_ops->close(substream); |
| 235 | |
| 236 | platform_err: |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 237 | if (cpu_dai->ops.shutdown) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 238 | cpu_dai->ops.shutdown(substream, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 239 | out: |
| 240 | mutex_unlock(&pcm_mutex); |
| 241 | return ret; |
| 242 | } |
| 243 | |
| 244 | /* |
Robert P. J. Day | 3a4fa0a | 2007-10-19 23:10:43 +0200 | [diff] [blame] | 245 | * Power down the audio subsystem pmdown_time msecs after close is called. |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 246 | * This is to ensure there are no pops or clicks in between any music tracks |
| 247 | * due to DAPM power cycling. |
| 248 | */ |
Andrew Morton | 4484bb2 | 2006-12-15 09:30:07 +0100 | [diff] [blame] | 249 | static void close_delayed_work(struct work_struct *work) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 250 | { |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 251 | struct snd_soc_card *card = container_of(work, struct snd_soc_card, |
| 252 | delayed_work.work); |
| 253 | struct snd_soc_device *socdev = card->socdev; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 254 | struct snd_soc_codec *codec = socdev->codec; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 255 | struct snd_soc_dai *codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 256 | int i; |
| 257 | |
| 258 | mutex_lock(&pcm_mutex); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 259 | for (i = 0; i < codec->num_dai; i++) { |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 260 | codec_dai = &codec->dai[i]; |
| 261 | |
Mark Brown | f24368c | 2008-10-21 21:45:08 +0100 | [diff] [blame] | 262 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", |
| 263 | codec_dai->playback.stream_name, |
| 264 | codec_dai->playback.active ? "active" : "inactive", |
| 265 | codec_dai->pop_wait ? "yes" : "no"); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 266 | |
| 267 | /* are we waiting on this codec DAI stream */ |
| 268 | if (codec_dai->pop_wait == 1) { |
| 269 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 270 | /* Reduce power if no longer active */ |
Liam Girdwood | 3c1c47e | 2008-01-10 14:38:24 +0100 | [diff] [blame] | 271 | if (codec->active == 0) { |
Mark Brown | f24368c | 2008-10-21 21:45:08 +0100 | [diff] [blame] | 272 | pr_debug("pop wq D1 %s %s\n", codec->name, |
| 273 | codec_dai->playback.stream_name); |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 274 | snd_soc_dapm_set_bias_level(socdev, |
| 275 | SND_SOC_BIAS_PREPARE); |
Liam Girdwood | 3c1c47e | 2008-01-10 14:38:24 +0100 | [diff] [blame] | 276 | } |
| 277 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 278 | codec_dai->pop_wait = 0; |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 279 | snd_soc_dapm_stream_event(codec, |
| 280 | codec_dai->playback.stream_name, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 281 | SND_SOC_DAPM_STREAM_STOP); |
| 282 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 283 | /* Fall into standby if no longer active */ |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 284 | if (codec->active == 0) { |
Mark Brown | f24368c | 2008-10-21 21:45:08 +0100 | [diff] [blame] | 285 | pr_debug("pop wq D3 %s %s\n", codec->name, |
| 286 | codec_dai->playback.stream_name); |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 287 | snd_soc_dapm_set_bias_level(socdev, |
| 288 | SND_SOC_BIAS_STANDBY); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | } |
| 292 | mutex_unlock(&pcm_mutex); |
| 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Called by ALSA when a PCM substream is closed. Private data can be |
| 297 | * freed here. The cpu DAI, codec DAI, machine and platform are also |
| 298 | * shutdown. |
| 299 | */ |
| 300 | static int soc_codec_close(struct snd_pcm_substream *substream) |
| 301 | { |
| 302 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 303 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 304 | struct snd_soc_card *card = socdev->card; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 305 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 306 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 307 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 308 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 309 | struct snd_soc_codec *codec = socdev->codec; |
| 310 | |
| 311 | mutex_lock(&pcm_mutex); |
| 312 | |
| 313 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 314 | cpu_dai->playback.active = codec_dai->playback.active = 0; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 315 | else |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 316 | cpu_dai->capture.active = codec_dai->capture.active = 0; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 317 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 318 | if (codec_dai->playback.active == 0 && |
| 319 | codec_dai->capture.active == 0) { |
| 320 | cpu_dai->active = codec_dai->active = 0; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 321 | } |
| 322 | codec->active--; |
| 323 | |
Mark Brown | 6010b2d | 2008-09-06 18:33:24 +0100 | [diff] [blame] | 324 | /* Muting the DAC suppresses artifacts caused during digital |
| 325 | * shutdown, for example from stopping clocks. |
| 326 | */ |
| 327 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 328 | snd_soc_dai_digital_mute(codec_dai, 1); |
| 329 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 330 | if (cpu_dai->ops.shutdown) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 331 | cpu_dai->ops.shutdown(substream, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 332 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 333 | if (codec_dai->ops.shutdown) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 334 | codec_dai->ops.shutdown(substream, codec_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 335 | |
| 336 | if (machine->ops && machine->ops->shutdown) |
| 337 | machine->ops->shutdown(substream); |
| 338 | |
| 339 | if (platform->pcm_ops->close) |
| 340 | platform->pcm_ops->close(substream); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 341 | cpu_dai->runtime = NULL; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 342 | |
| 343 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 344 | /* start delayed pop wq here for playback streams */ |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 345 | codec_dai->pop_wait = 1; |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 346 | schedule_delayed_work(&card->delayed_work, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 347 | msecs_to_jiffies(pmdown_time)); |
| 348 | } else { |
| 349 | /* capture streams can be powered down now */ |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 350 | snd_soc_dapm_stream_event(codec, |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 351 | codec_dai->capture.stream_name, |
| 352 | SND_SOC_DAPM_STREAM_STOP); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 353 | |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 354 | if (codec->active == 0 && codec_dai->pop_wait == 0) |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 355 | snd_soc_dapm_set_bias_level(socdev, |
| 356 | SND_SOC_BIAS_STANDBY); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | mutex_unlock(&pcm_mutex); |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | /* |
| 364 | * Called by ALSA when the PCM substream is prepared, can set format, sample |
| 365 | * rate, etc. This function is non atomic and can be called multiple times, |
| 366 | * it can refer to the runtime info. |
| 367 | */ |
| 368 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) |
| 369 | { |
| 370 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 371 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 372 | struct snd_soc_card *card = socdev->card; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 373 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 374 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 375 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 376 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 377 | struct snd_soc_codec *codec = socdev->codec; |
| 378 | int ret = 0; |
| 379 | |
| 380 | mutex_lock(&pcm_mutex); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 381 | |
| 382 | if (machine->ops && machine->ops->prepare) { |
| 383 | ret = machine->ops->prepare(substream); |
| 384 | if (ret < 0) { |
| 385 | printk(KERN_ERR "asoc: machine prepare error\n"); |
| 386 | goto out; |
| 387 | } |
| 388 | } |
| 389 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 390 | if (platform->pcm_ops->prepare) { |
| 391 | ret = platform->pcm_ops->prepare(substream); |
Liam Girdwood | a71a468 | 2006-10-19 20:35:56 +0200 | [diff] [blame] | 392 | if (ret < 0) { |
| 393 | printk(KERN_ERR "asoc: platform prepare error\n"); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 394 | goto out; |
Liam Girdwood | a71a468 | 2006-10-19 20:35:56 +0200 | [diff] [blame] | 395 | } |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 396 | } |
| 397 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 398 | if (codec_dai->ops.prepare) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 399 | ret = codec_dai->ops.prepare(substream, codec_dai); |
Liam Girdwood | a71a468 | 2006-10-19 20:35:56 +0200 | [diff] [blame] | 400 | if (ret < 0) { |
| 401 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 402 | goto out; |
Liam Girdwood | a71a468 | 2006-10-19 20:35:56 +0200 | [diff] [blame] | 403 | } |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 404 | } |
| 405 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 406 | if (cpu_dai->ops.prepare) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 407 | ret = cpu_dai->ops.prepare(substream, cpu_dai); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 408 | if (ret < 0) { |
| 409 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); |
| 410 | goto out; |
| 411 | } |
| 412 | } |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 413 | |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 414 | /* cancel any delayed stream shutdown that is pending */ |
| 415 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && |
| 416 | codec_dai->pop_wait) { |
| 417 | codec_dai->pop_wait = 0; |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 418 | cancel_delayed_work(&card->delayed_work); |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | /* do we need to power up codec */ |
| 422 | if (codec->bias_level != SND_SOC_BIAS_ON) { |
| 423 | snd_soc_dapm_set_bias_level(socdev, |
| 424 | SND_SOC_BIAS_PREPARE); |
| 425 | |
| 426 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 427 | snd_soc_dapm_stream_event(codec, |
| 428 | codec_dai->playback.stream_name, |
| 429 | SND_SOC_DAPM_STREAM_START); |
| 430 | else |
| 431 | snd_soc_dapm_stream_event(codec, |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 432 | codec_dai->capture.stream_name, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 433 | SND_SOC_DAPM_STREAM_START); |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 434 | |
| 435 | snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_ON); |
| 436 | snd_soc_dai_digital_mute(codec_dai, 0); |
| 437 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 438 | } else { |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 439 | /* codec already powered - power on widgets */ |
| 440 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 441 | snd_soc_dapm_stream_event(codec, |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 442 | codec_dai->playback.stream_name, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 443 | SND_SOC_DAPM_STREAM_START); |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 444 | else |
| 445 | snd_soc_dapm_stream_event(codec, |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 446 | codec_dai->capture.stream_name, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 447 | SND_SOC_DAPM_STREAM_START); |
| 448 | |
Mark Brown | d45f621 | 2008-10-14 13:58:36 +0100 | [diff] [blame] | 449 | snd_soc_dai_digital_mute(codec_dai, 0); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 450 | } |
| 451 | |
| 452 | out: |
| 453 | mutex_unlock(&pcm_mutex); |
| 454 | return ret; |
| 455 | } |
| 456 | |
| 457 | /* |
| 458 | * Called by ALSA when the hardware params are set by application. This |
| 459 | * function can also be called multiple times and can allocate buffers |
| 460 | * (using snd_pcm_lib_* ). It's non-atomic. |
| 461 | */ |
| 462 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, |
| 463 | struct snd_pcm_hw_params *params) |
| 464 | { |
| 465 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 466 | struct snd_soc_device *socdev = rtd->socdev; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 467 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 468 | struct snd_soc_card *card = socdev->card; |
| 469 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 470 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 471 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 472 | int ret = 0; |
| 473 | |
| 474 | mutex_lock(&pcm_mutex); |
| 475 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 476 | if (machine->ops && machine->ops->hw_params) { |
| 477 | ret = machine->ops->hw_params(substream, params); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 478 | if (ret < 0) { |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 479 | printk(KERN_ERR "asoc: machine hw_params failed\n"); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 480 | goto out; |
| 481 | } |
| 482 | } |
| 483 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 484 | if (codec_dai->ops.hw_params) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 485 | ret = codec_dai->ops.hw_params(substream, params, codec_dai); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 486 | if (ret < 0) { |
| 487 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", |
| 488 | codec_dai->name); |
| 489 | goto codec_err; |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | if (cpu_dai->ops.hw_params) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 494 | ret = cpu_dai->ops.hw_params(substream, params, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 495 | if (ret < 0) { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 496 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 497 | cpu_dai->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 498 | goto interface_err; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | if (platform->pcm_ops->hw_params) { |
| 503 | ret = platform->pcm_ops->hw_params(substream, params); |
| 504 | if (ret < 0) { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 505 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 506 | platform->name); |
| 507 | goto platform_err; |
| 508 | } |
| 509 | } |
| 510 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 511 | out: |
| 512 | mutex_unlock(&pcm_mutex); |
| 513 | return ret; |
| 514 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 515 | platform_err: |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 516 | if (cpu_dai->ops.hw_free) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 517 | cpu_dai->ops.hw_free(substream, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 518 | |
| 519 | interface_err: |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 520 | if (codec_dai->ops.hw_free) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 521 | codec_dai->ops.hw_free(substream, codec_dai); |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 522 | |
| 523 | codec_err: |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 524 | if (machine->ops && machine->ops->hw_free) |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 525 | machine->ops->hw_free(substream); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 526 | |
| 527 | mutex_unlock(&pcm_mutex); |
| 528 | return ret; |
| 529 | } |
| 530 | |
| 531 | /* |
| 532 | * Free's resources allocated by hw_params, can be called multiple times |
| 533 | */ |
| 534 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) |
| 535 | { |
| 536 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 537 | struct snd_soc_device *socdev = rtd->socdev; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 538 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 539 | struct snd_soc_card *card = socdev->card; |
| 540 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 541 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 542 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 543 | struct snd_soc_codec *codec = socdev->codec; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 544 | |
| 545 | mutex_lock(&pcm_mutex); |
| 546 | |
| 547 | /* apply codec digital mute */ |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 548 | if (!codec->active) |
| 549 | snd_soc_dai_digital_mute(codec_dai, 1); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 550 | |
| 551 | /* free any machine hw params */ |
| 552 | if (machine->ops && machine->ops->hw_free) |
| 553 | machine->ops->hw_free(substream); |
| 554 | |
| 555 | /* free any DMA resources */ |
| 556 | if (platform->pcm_ops->hw_free) |
| 557 | platform->pcm_ops->hw_free(substream); |
| 558 | |
| 559 | /* now free hw params for the DAI's */ |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 560 | if (codec_dai->ops.hw_free) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 561 | codec_dai->ops.hw_free(substream, codec_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 562 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 563 | if (cpu_dai->ops.hw_free) |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 564 | cpu_dai->ops.hw_free(substream, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 565 | |
| 566 | mutex_unlock(&pcm_mutex); |
| 567 | return 0; |
| 568 | } |
| 569 | |
| 570 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| 571 | { |
| 572 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 573 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 574 | struct snd_soc_card *card= socdev->card; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 575 | struct snd_soc_dai_link *machine = rtd->dai; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 576 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 577 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
| 578 | struct snd_soc_dai *codec_dai = machine->codec_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 579 | int ret; |
| 580 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 581 | if (codec_dai->ops.trigger) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 582 | ret = codec_dai->ops.trigger(substream, cmd, codec_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 583 | if (ret < 0) |
| 584 | return ret; |
| 585 | } |
| 586 | |
| 587 | if (platform->pcm_ops->trigger) { |
| 588 | ret = platform->pcm_ops->trigger(substream, cmd); |
| 589 | if (ret < 0) |
| 590 | return ret; |
| 591 | } |
| 592 | |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 593 | if (cpu_dai->ops.trigger) { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 594 | ret = cpu_dai->ops.trigger(substream, cmd, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 595 | if (ret < 0) |
| 596 | return ret; |
| 597 | } |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | /* ASoC PCM operations */ |
| 602 | static struct snd_pcm_ops soc_pcm_ops = { |
| 603 | .open = soc_pcm_open, |
| 604 | .close = soc_codec_close, |
| 605 | .hw_params = soc_pcm_hw_params, |
| 606 | .hw_free = soc_pcm_hw_free, |
| 607 | .prepare = soc_pcm_prepare, |
| 608 | .trigger = soc_pcm_trigger, |
| 609 | }; |
| 610 | |
| 611 | #ifdef CONFIG_PM |
| 612 | /* powers down audio subsystem for suspend */ |
| 613 | static int soc_suspend(struct platform_device *pdev, pm_message_t state) |
| 614 | { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 615 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 616 | struct snd_soc_card *card = socdev->card; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 617 | struct snd_soc_platform *platform = card->platform; |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 618 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 619 | struct snd_soc_codec *codec = socdev->codec; |
| 620 | int i; |
| 621 | |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 622 | /* Due to the resume being scheduled into a workqueue we could |
| 623 | * suspend before that's finished - wait for it to complete. |
| 624 | */ |
| 625 | snd_power_lock(codec->card); |
| 626 | snd_power_wait(codec->card, SNDRV_CTL_POWER_D0); |
| 627 | snd_power_unlock(codec->card); |
| 628 | |
| 629 | /* we're going to block userspace touching us until resume completes */ |
| 630 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); |
| 631 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 632 | /* mute any active DAC's */ |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 633 | for (i = 0; i < card->num_links; i++) { |
| 634 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; |
| 635 | if (dai->ops.digital_mute && dai->playback.active) |
| 636 | dai->ops.digital_mute(dai, 1); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 637 | } |
| 638 | |
Liam Girdwood | 4ccab3e | 2008-01-10 14:39:01 +0100 | [diff] [blame] | 639 | /* suspend all pcms */ |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 640 | for (i = 0; i < card->num_links; i++) |
| 641 | snd_pcm_suspend_all(card->dai_link[i].pcm); |
Liam Girdwood | 4ccab3e | 2008-01-10 14:39:01 +0100 | [diff] [blame] | 642 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 643 | if (card->suspend_pre) |
| 644 | card->suspend_pre(pdev, state); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 645 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 646 | for (i = 0; i < card->num_links; i++) { |
| 647 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 648 | if (cpu_dai->suspend && !cpu_dai->ac97_control) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 649 | cpu_dai->suspend(pdev, cpu_dai); |
| 650 | if (platform->suspend) |
| 651 | platform->suspend(pdev, cpu_dai); |
| 652 | } |
| 653 | |
| 654 | /* close any waiting streams and save state */ |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 655 | run_delayed_work(&card->delayed_work); |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 656 | codec->suspend_bias_level = codec->bias_level; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 657 | |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 658 | for (i = 0; i < codec->num_dai; i++) { |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 659 | char *stream = codec->dai[i].playback.stream_name; |
| 660 | if (stream != NULL) |
| 661 | snd_soc_dapm_stream_event(codec, stream, |
| 662 | SND_SOC_DAPM_STREAM_SUSPEND); |
| 663 | stream = codec->dai[i].capture.stream_name; |
| 664 | if (stream != NULL) |
| 665 | snd_soc_dapm_stream_event(codec, stream, |
| 666 | SND_SOC_DAPM_STREAM_SUSPEND); |
| 667 | } |
| 668 | |
| 669 | if (codec_dev->suspend) |
| 670 | codec_dev->suspend(pdev, state); |
| 671 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 672 | for (i = 0; i < card->num_links; i++) { |
| 673 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 674 | if (cpu_dai->suspend && cpu_dai->ac97_control) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 675 | cpu_dai->suspend(pdev, cpu_dai); |
| 676 | } |
| 677 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 678 | if (card->suspend_post) |
| 679 | card->suspend_post(pdev, state); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 680 | |
| 681 | return 0; |
| 682 | } |
| 683 | |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 684 | /* deferred resume work, so resume can complete before we finished |
| 685 | * setting our codec back up, which can be very slow on I2C |
| 686 | */ |
| 687 | static void soc_resume_deferred(struct work_struct *work) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 688 | { |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 689 | struct snd_soc_card *card = container_of(work, |
| 690 | struct snd_soc_card, |
| 691 | deferred_resume_work); |
| 692 | struct snd_soc_device *socdev = card->socdev; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 693 | struct snd_soc_platform *platform = card->platform; |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 694 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 695 | struct snd_soc_codec *codec = socdev->codec; |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 696 | struct platform_device *pdev = to_platform_device(socdev->dev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 697 | int i; |
| 698 | |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 699 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
| 700 | * so userspace apps are blocked from touching us |
| 701 | */ |
| 702 | |
Mark Brown | fde22f2 | 2008-11-24 18:08:18 +0000 | [diff] [blame] | 703 | dev_dbg(socdev->dev, "starting resume work\n"); |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 704 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 705 | if (card->resume_pre) |
| 706 | card->resume_pre(pdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 707 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 708 | for (i = 0; i < card->num_links; i++) { |
| 709 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 710 | if (cpu_dai->resume && cpu_dai->ac97_control) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 711 | cpu_dai->resume(pdev, cpu_dai); |
| 712 | } |
| 713 | |
| 714 | if (codec_dev->resume) |
| 715 | codec_dev->resume(pdev); |
| 716 | |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 717 | for (i = 0; i < codec->num_dai; i++) { |
| 718 | char *stream = codec->dai[i].playback.stream_name; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 719 | if (stream != NULL) |
| 720 | snd_soc_dapm_stream_event(codec, stream, |
| 721 | SND_SOC_DAPM_STREAM_RESUME); |
| 722 | stream = codec->dai[i].capture.stream_name; |
| 723 | if (stream != NULL) |
| 724 | snd_soc_dapm_stream_event(codec, stream, |
| 725 | SND_SOC_DAPM_STREAM_RESUME); |
| 726 | } |
| 727 | |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 728 | /* unmute any active DACs */ |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 729 | for (i = 0; i < card->num_links; i++) { |
| 730 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; |
| 731 | if (dai->ops.digital_mute && dai->playback.active) |
| 732 | dai->ops.digital_mute(dai, 0); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 733 | } |
| 734 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 735 | for (i = 0; i < card->num_links; i++) { |
| 736 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 737 | if (cpu_dai->resume && !cpu_dai->ac97_control) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 738 | cpu_dai->resume(pdev, cpu_dai); |
| 739 | if (platform->resume) |
| 740 | platform->resume(pdev, cpu_dai); |
| 741 | } |
| 742 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 743 | if (card->resume_post) |
| 744 | card->resume_post(pdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 745 | |
Mark Brown | fde22f2 | 2008-11-24 18:08:18 +0000 | [diff] [blame] | 746 | dev_dbg(socdev->dev, "resume work completed\n"); |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 747 | |
| 748 | /* userspace can access us now we are back as we were before */ |
| 749 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); |
| 750 | } |
| 751 | |
| 752 | /* powers up audio subsystem after a suspend */ |
| 753 | static int soc_resume(struct platform_device *pdev) |
| 754 | { |
| 755 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 756 | struct snd_soc_card *card = socdev->card; |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 757 | |
Mark Brown | fde22f2 | 2008-11-24 18:08:18 +0000 | [diff] [blame] | 758 | dev_dbg(socdev->dev, "scheduling resume work\n"); |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 759 | |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 760 | if (!schedule_work(&card->deferred_resume_work)) |
Mark Brown | fde22f2 | 2008-11-24 18:08:18 +0000 | [diff] [blame] | 761 | dev_err(socdev->dev, "resume work item may be lost\n"); |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 762 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 763 | return 0; |
| 764 | } |
| 765 | |
| 766 | #else |
| 767 | #define soc_suspend NULL |
| 768 | #define soc_resume NULL |
| 769 | #endif |
| 770 | |
| 771 | /* probes a new socdev */ |
| 772 | static int soc_probe(struct platform_device *pdev) |
| 773 | { |
| 774 | int ret = 0, i; |
| 775 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 776 | struct snd_soc_card *card = socdev->card; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 777 | struct snd_soc_platform *platform = card->platform; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 778 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
| 779 | |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 780 | /* Bodge while we push things out of socdev */ |
| 781 | card->socdev = socdev; |
| 782 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 783 | if (card->probe) { |
| 784 | ret = card->probe(pdev); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 785 | if (ret < 0) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 786 | return ret; |
| 787 | } |
| 788 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 789 | for (i = 0; i < card->num_links; i++) { |
| 790 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 791 | if (cpu_dai->probe) { |
Mark Brown | bdb9287 | 2008-06-11 13:47:10 +0100 | [diff] [blame] | 792 | ret = cpu_dai->probe(pdev, cpu_dai); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 793 | if (ret < 0) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 794 | goto cpu_dai_err; |
| 795 | } |
| 796 | } |
| 797 | |
| 798 | if (codec_dev->probe) { |
| 799 | ret = codec_dev->probe(pdev); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 800 | if (ret < 0) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 801 | goto cpu_dai_err; |
| 802 | } |
| 803 | |
| 804 | if (platform->probe) { |
| 805 | ret = platform->probe(pdev); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 806 | if (ret < 0) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 807 | goto platform_err; |
| 808 | } |
| 809 | |
| 810 | /* DAPM stream work */ |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 811 | INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); |
Randy Dunlap | 1301a96 | 2008-06-17 19:19:34 +0100 | [diff] [blame] | 812 | #ifdef CONFIG_PM |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 813 | /* deferred resume work */ |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 814 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); |
Randy Dunlap | 1301a96 | 2008-06-17 19:19:34 +0100 | [diff] [blame] | 815 | #endif |
Andy Green | 6ed2597 | 2008-06-13 16:24:05 +0100 | [diff] [blame] | 816 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 817 | return 0; |
| 818 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 819 | platform_err: |
| 820 | if (codec_dev->remove) |
| 821 | codec_dev->remove(pdev); |
| 822 | |
| 823 | cpu_dai_err: |
Liam Girdwood | 18b9b3d | 2007-01-30 17:18:45 +0100 | [diff] [blame] | 824 | for (i--; i >= 0; i--) { |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 825 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 826 | if (cpu_dai->remove) |
Mark Brown | bdb9287 | 2008-06-11 13:47:10 +0100 | [diff] [blame] | 827 | cpu_dai->remove(pdev, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 828 | } |
| 829 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 830 | if (card->remove) |
| 831 | card->remove(pdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 832 | |
| 833 | return ret; |
| 834 | } |
| 835 | |
| 836 | /* removes a socdev */ |
| 837 | static int soc_remove(struct platform_device *pdev) |
| 838 | { |
| 839 | int i; |
| 840 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 841 | struct snd_soc_card *card = socdev->card; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 842 | struct snd_soc_platform *platform = card->platform; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 843 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
| 844 | |
Mark Brown | 6308419 | 2008-12-02 15:08:03 +0000 | [diff] [blame] | 845 | run_delayed_work(&card->delayed_work); |
Liam Girdwood | 965ac42 | 2007-01-31 14:14:57 +0100 | [diff] [blame] | 846 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 847 | if (platform->remove) |
| 848 | platform->remove(pdev); |
| 849 | |
| 850 | if (codec_dev->remove) |
| 851 | codec_dev->remove(pdev); |
| 852 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 853 | for (i = 0; i < card->num_links; i++) { |
| 854 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 855 | if (cpu_dai->remove) |
Mark Brown | bdb9287 | 2008-06-11 13:47:10 +0100 | [diff] [blame] | 856 | cpu_dai->remove(pdev, cpu_dai); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 857 | } |
| 858 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 859 | if (card->remove) |
| 860 | card->remove(pdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 861 | |
| 862 | return 0; |
| 863 | } |
| 864 | |
| 865 | /* ASoC platform driver */ |
| 866 | static struct platform_driver soc_driver = { |
| 867 | .driver = { |
| 868 | .name = "soc-audio", |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 869 | .owner = THIS_MODULE, |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 870 | }, |
| 871 | .probe = soc_probe, |
| 872 | .remove = soc_remove, |
| 873 | .suspend = soc_suspend, |
| 874 | .resume = soc_resume, |
| 875 | }; |
| 876 | |
| 877 | /* create a new pcm */ |
| 878 | static int soc_new_pcm(struct snd_soc_device *socdev, |
| 879 | struct snd_soc_dai_link *dai_link, int num) |
| 880 | { |
| 881 | struct snd_soc_codec *codec = socdev->codec; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 882 | struct snd_soc_card *card = socdev->card; |
| 883 | struct snd_soc_platform *platform = card->platform; |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 884 | struct snd_soc_dai *codec_dai = dai_link->codec_dai; |
| 885 | struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 886 | struct snd_soc_pcm_runtime *rtd; |
| 887 | struct snd_pcm *pcm; |
| 888 | char new_name[64]; |
| 889 | int ret = 0, playback = 0, capture = 0; |
| 890 | |
| 891 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); |
| 892 | if (rtd == NULL) |
| 893 | return -ENOMEM; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 894 | |
| 895 | rtd->dai = dai_link; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 896 | rtd->socdev = socdev; |
Liam Girdwood | cb666e5 | 2007-02-02 17:13:49 +0100 | [diff] [blame] | 897 | codec_dai->codec = socdev->codec; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 898 | |
| 899 | /* check client and interface hw capabilities */ |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 900 | sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name, |
| 901 | num); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 902 | |
| 903 | if (codec_dai->playback.channels_min) |
| 904 | playback = 1; |
| 905 | if (codec_dai->capture.channels_min) |
| 906 | capture = 1; |
| 907 | |
| 908 | ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback, |
| 909 | capture, &pcm); |
| 910 | if (ret < 0) { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 911 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", |
| 912 | codec->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 913 | kfree(rtd); |
| 914 | return ret; |
| 915 | } |
| 916 | |
Liam Girdwood | 4ccab3e | 2008-01-10 14:39:01 +0100 | [diff] [blame] | 917 | dai_link->pcm = pcm; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 918 | pcm->private_data = rtd; |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 919 | soc_pcm_ops.mmap = platform->pcm_ops->mmap; |
| 920 | soc_pcm_ops.pointer = platform->pcm_ops->pointer; |
| 921 | soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; |
| 922 | soc_pcm_ops.copy = platform->pcm_ops->copy; |
| 923 | soc_pcm_ops.silence = platform->pcm_ops->silence; |
| 924 | soc_pcm_ops.ack = platform->pcm_ops->ack; |
| 925 | soc_pcm_ops.page = platform->pcm_ops->page; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 926 | |
| 927 | if (playback) |
| 928 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); |
| 929 | |
| 930 | if (capture) |
| 931 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); |
| 932 | |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 933 | ret = platform->pcm_new(codec->card, codec_dai, pcm); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 934 | if (ret < 0) { |
| 935 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); |
| 936 | kfree(rtd); |
| 937 | return ret; |
| 938 | } |
| 939 | |
Mark Brown | 87689d5 | 2008-12-02 16:01:14 +0000 | [diff] [blame^] | 940 | pcm->private_free = platform->pcm_free; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 941 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
| 942 | cpu_dai->name); |
| 943 | return ret; |
| 944 | } |
| 945 | |
| 946 | /* codec register dump */ |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 947 | static ssize_t soc_codec_reg_show(struct snd_soc_device *devdata, char *buf) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 948 | { |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 949 | struct snd_soc_codec *codec = devdata->codec; |
| 950 | int i, step = 1, count = 0; |
| 951 | |
| 952 | if (!codec->reg_cache_size) |
| 953 | return 0; |
| 954 | |
| 955 | if (codec->reg_cache_step) |
| 956 | step = codec->reg_cache_step; |
| 957 | |
| 958 | count += sprintf(buf, "%s registers\n", codec->name); |
Mark Brown | 58cd33c | 2008-07-29 11:42:25 +0100 | [diff] [blame] | 959 | for (i = 0; i < codec->reg_cache_size; i += step) { |
| 960 | count += sprintf(buf + count, "%2x: ", i); |
| 961 | if (count >= PAGE_SIZE - 1) |
| 962 | break; |
| 963 | |
| 964 | if (codec->display_register) |
| 965 | count += codec->display_register(codec, buf + count, |
| 966 | PAGE_SIZE - count, i); |
| 967 | else |
| 968 | count += snprintf(buf + count, PAGE_SIZE - count, |
| 969 | "%4x", codec->read(codec, i)); |
| 970 | |
| 971 | if (count >= PAGE_SIZE - 1) |
| 972 | break; |
| 973 | |
| 974 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); |
| 975 | if (count >= PAGE_SIZE - 1) |
| 976 | break; |
| 977 | } |
| 978 | |
| 979 | /* Truncate count; min() would cause a warning */ |
| 980 | if (count >= PAGE_SIZE) |
| 981 | count = PAGE_SIZE - 1; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 982 | |
| 983 | return count; |
| 984 | } |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 985 | static ssize_t codec_reg_show(struct device *dev, |
| 986 | struct device_attribute *attr, char *buf) |
| 987 | { |
| 988 | struct snd_soc_device *devdata = dev_get_drvdata(dev); |
| 989 | return soc_codec_reg_show(devdata, buf); |
| 990 | } |
| 991 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 992 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); |
| 993 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 994 | #ifdef CONFIG_DEBUG_FS |
| 995 | static int codec_reg_open_file(struct inode *inode, struct file *file) |
| 996 | { |
| 997 | file->private_data = inode->i_private; |
| 998 | return 0; |
| 999 | } |
| 1000 | |
| 1001 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
| 1002 | size_t count, loff_t *ppos) |
| 1003 | { |
| 1004 | ssize_t ret; |
| 1005 | struct snd_soc_device *devdata = file->private_data; |
| 1006 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
| 1007 | if (!buf) |
| 1008 | return -ENOMEM; |
| 1009 | ret = soc_codec_reg_show(devdata, buf); |
| 1010 | if (ret >= 0) |
| 1011 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
| 1012 | kfree(buf); |
| 1013 | return ret; |
| 1014 | } |
| 1015 | |
| 1016 | static ssize_t codec_reg_write_file(struct file *file, |
| 1017 | const char __user *user_buf, size_t count, loff_t *ppos) |
| 1018 | { |
| 1019 | char buf[32]; |
| 1020 | int buf_size; |
| 1021 | char *start = buf; |
| 1022 | unsigned long reg, value; |
| 1023 | int step = 1; |
| 1024 | struct snd_soc_device *devdata = file->private_data; |
| 1025 | struct snd_soc_codec *codec = devdata->codec; |
| 1026 | |
| 1027 | buf_size = min(count, (sizeof(buf)-1)); |
| 1028 | if (copy_from_user(buf, user_buf, buf_size)) |
| 1029 | return -EFAULT; |
| 1030 | buf[buf_size] = 0; |
| 1031 | |
| 1032 | if (codec->reg_cache_step) |
| 1033 | step = codec->reg_cache_step; |
| 1034 | |
| 1035 | while (*start == ' ') |
| 1036 | start++; |
| 1037 | reg = simple_strtoul(start, &start, 16); |
| 1038 | if ((reg >= codec->reg_cache_size) || (reg % step)) |
| 1039 | return -EINVAL; |
| 1040 | while (*start == ' ') |
| 1041 | start++; |
| 1042 | if (strict_strtoul(start, 16, &value)) |
| 1043 | return -EINVAL; |
| 1044 | codec->write(codec, reg, value); |
| 1045 | return buf_size; |
| 1046 | } |
| 1047 | |
| 1048 | static const struct file_operations codec_reg_fops = { |
| 1049 | .open = codec_reg_open_file, |
| 1050 | .read = codec_reg_read_file, |
| 1051 | .write = codec_reg_write_file, |
| 1052 | }; |
| 1053 | |
| 1054 | static void soc_init_debugfs(struct snd_soc_device *socdev) |
| 1055 | { |
| 1056 | struct dentry *root, *file; |
| 1057 | struct snd_soc_codec *codec = socdev->codec; |
| 1058 | root = debugfs_create_dir(dev_name(socdev->dev), NULL); |
| 1059 | if (IS_ERR(root) || !root) |
| 1060 | goto exit1; |
| 1061 | |
| 1062 | file = debugfs_create_file("codec_reg", 0644, |
| 1063 | root, socdev, &codec_reg_fops); |
| 1064 | if (!file) |
| 1065 | goto exit2; |
| 1066 | |
| 1067 | file = debugfs_create_u32("dapm_pop_time", 0744, |
| 1068 | root, &codec->pop_time); |
| 1069 | if (!file) |
| 1070 | goto exit2; |
| 1071 | socdev->debugfs_root = root; |
| 1072 | return; |
| 1073 | exit2: |
| 1074 | debugfs_remove_recursive(root); |
| 1075 | exit1: |
| 1076 | dev_err(socdev->dev, "debugfs is not available\n"); |
| 1077 | } |
| 1078 | |
| 1079 | static void soc_cleanup_debugfs(struct snd_soc_device *socdev) |
| 1080 | { |
| 1081 | debugfs_remove_recursive(socdev->debugfs_root); |
| 1082 | socdev->debugfs_root = NULL; |
| 1083 | } |
| 1084 | |
| 1085 | #else |
| 1086 | |
| 1087 | static inline void soc_init_debugfs(struct snd_soc_device *socdev) |
| 1088 | { |
| 1089 | } |
| 1090 | |
| 1091 | static inline void soc_cleanup_debugfs(struct snd_soc_device *socdev) |
| 1092 | { |
| 1093 | } |
| 1094 | #endif |
| 1095 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1096 | /** |
| 1097 | * snd_soc_new_ac97_codec - initailise AC97 device |
| 1098 | * @codec: audio codec |
| 1099 | * @ops: AC97 bus operations |
| 1100 | * @num: AC97 codec number |
| 1101 | * |
| 1102 | * Initialises AC97 codec resources for use by ad-hoc devices only. |
| 1103 | */ |
| 1104 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, |
| 1105 | struct snd_ac97_bus_ops *ops, int num) |
| 1106 | { |
| 1107 | mutex_lock(&codec->mutex); |
| 1108 | |
| 1109 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); |
| 1110 | if (codec->ac97 == NULL) { |
| 1111 | mutex_unlock(&codec->mutex); |
| 1112 | return -ENOMEM; |
| 1113 | } |
| 1114 | |
| 1115 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); |
| 1116 | if (codec->ac97->bus == NULL) { |
| 1117 | kfree(codec->ac97); |
| 1118 | codec->ac97 = NULL; |
| 1119 | mutex_unlock(&codec->mutex); |
| 1120 | return -ENOMEM; |
| 1121 | } |
| 1122 | |
| 1123 | codec->ac97->bus->ops = ops; |
| 1124 | codec->ac97->num = num; |
| 1125 | mutex_unlock(&codec->mutex); |
| 1126 | return 0; |
| 1127 | } |
| 1128 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); |
| 1129 | |
| 1130 | /** |
| 1131 | * snd_soc_free_ac97_codec - free AC97 codec device |
| 1132 | * @codec: audio codec |
| 1133 | * |
| 1134 | * Frees AC97 codec device resources. |
| 1135 | */ |
| 1136 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) |
| 1137 | { |
| 1138 | mutex_lock(&codec->mutex); |
| 1139 | kfree(codec->ac97->bus); |
| 1140 | kfree(codec->ac97); |
| 1141 | codec->ac97 = NULL; |
| 1142 | mutex_unlock(&codec->mutex); |
| 1143 | } |
| 1144 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); |
| 1145 | |
| 1146 | /** |
| 1147 | * snd_soc_update_bits - update codec register bits |
| 1148 | * @codec: audio codec |
| 1149 | * @reg: codec register |
| 1150 | * @mask: register mask |
| 1151 | * @value: new value |
| 1152 | * |
| 1153 | * Writes new register value. |
| 1154 | * |
| 1155 | * Returns 1 for change else 0. |
| 1156 | */ |
| 1157 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, |
| 1158 | unsigned short mask, unsigned short value) |
| 1159 | { |
| 1160 | int change; |
| 1161 | unsigned short old, new; |
| 1162 | |
| 1163 | mutex_lock(&io_mutex); |
| 1164 | old = snd_soc_read(codec, reg); |
| 1165 | new = (old & ~mask) | value; |
| 1166 | change = old != new; |
| 1167 | if (change) |
| 1168 | snd_soc_write(codec, reg, new); |
| 1169 | |
| 1170 | mutex_unlock(&io_mutex); |
| 1171 | return change; |
| 1172 | } |
| 1173 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); |
| 1174 | |
| 1175 | /** |
| 1176 | * snd_soc_test_bits - test register for change |
| 1177 | * @codec: audio codec |
| 1178 | * @reg: codec register |
| 1179 | * @mask: register mask |
| 1180 | * @value: new value |
| 1181 | * |
| 1182 | * Tests a register with a new value and checks if the new value is |
| 1183 | * different from the old value. |
| 1184 | * |
| 1185 | * Returns 1 for change else 0. |
| 1186 | */ |
| 1187 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, |
| 1188 | unsigned short mask, unsigned short value) |
| 1189 | { |
| 1190 | int change; |
| 1191 | unsigned short old, new; |
| 1192 | |
| 1193 | mutex_lock(&io_mutex); |
| 1194 | old = snd_soc_read(codec, reg); |
| 1195 | new = (old & ~mask) | value; |
| 1196 | change = old != new; |
| 1197 | mutex_unlock(&io_mutex); |
| 1198 | |
| 1199 | return change; |
| 1200 | } |
| 1201 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); |
| 1202 | |
| 1203 | /** |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1204 | * snd_soc_new_pcms - create new sound card and pcms |
| 1205 | * @socdev: the SoC audio device |
| 1206 | * |
| 1207 | * Create a new sound card based upon the codec and interface pcms. |
| 1208 | * |
| 1209 | * Returns 0 for success, else error. |
| 1210 | */ |
Liam Girdwood | bc7320c | 2007-02-01 12:26:07 +0100 | [diff] [blame] | 1211 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1212 | { |
| 1213 | struct snd_soc_codec *codec = socdev->codec; |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1214 | struct snd_soc_card *card = socdev->card; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1215 | int ret = 0, i; |
| 1216 | |
| 1217 | mutex_lock(&codec->mutex); |
| 1218 | |
| 1219 | /* register a sound card */ |
| 1220 | codec->card = snd_card_new(idx, xid, codec->owner, 0); |
| 1221 | if (!codec->card) { |
| 1222 | printk(KERN_ERR "asoc: can't create sound card for codec %s\n", |
| 1223 | codec->name); |
| 1224 | mutex_unlock(&codec->mutex); |
| 1225 | return -ENODEV; |
| 1226 | } |
| 1227 | |
| 1228 | codec->card->dev = socdev->dev; |
| 1229 | codec->card->private_data = codec; |
| 1230 | strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); |
| 1231 | |
| 1232 | /* create the pcms */ |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1233 | for (i = 0; i < card->num_links; i++) { |
| 1234 | ret = soc_new_pcm(socdev, &card->dai_link[i], i); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1235 | if (ret < 0) { |
| 1236 | printk(KERN_ERR "asoc: can't create pcm %s\n", |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1237 | card->dai_link[i].stream_name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1238 | mutex_unlock(&codec->mutex); |
| 1239 | return ret; |
| 1240 | } |
| 1241 | } |
| 1242 | |
| 1243 | mutex_unlock(&codec->mutex); |
| 1244 | return ret; |
| 1245 | } |
| 1246 | EXPORT_SYMBOL_GPL(snd_soc_new_pcms); |
| 1247 | |
| 1248 | /** |
Mark Brown | 968a602 | 2008-11-28 11:49:07 +0000 | [diff] [blame] | 1249 | * snd_soc_init_card - register sound card |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1250 | * @socdev: the SoC audio device |
| 1251 | * |
| 1252 | * Register a SoC sound card. Also registers an AC97 device if the |
| 1253 | * codec is AC97 for ad hoc devices. |
| 1254 | * |
| 1255 | * Returns 0 for success, else error. |
| 1256 | */ |
Mark Brown | 968a602 | 2008-11-28 11:49:07 +0000 | [diff] [blame] | 1257 | int snd_soc_init_card(struct snd_soc_device *socdev) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1258 | { |
| 1259 | struct snd_soc_codec *codec = socdev->codec; |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1260 | struct snd_soc_card *card = socdev->card; |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1261 | int ret = 0, i, ac97 = 0, err = 0; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1262 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1263 | for (i = 0; i < card->num_links; i++) { |
| 1264 | if (card->dai_link[i].init) { |
| 1265 | err = card->dai_link[i].init(codec); |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1266 | if (err < 0) { |
| 1267 | printk(KERN_ERR "asoc: failed to init %s\n", |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1268 | card->dai_link[i].stream_name); |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1269 | continue; |
| 1270 | } |
| 1271 | } |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 1272 | if (card->dai_link[i].codec_dai->ac97_control) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1273 | ac97 = 1; |
| 1274 | } |
| 1275 | snprintf(codec->card->shortname, sizeof(codec->card->shortname), |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1276 | "%s", card->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1277 | snprintf(codec->card->longname, sizeof(codec->card->longname), |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1278 | "%s (%s)", card->name, codec->name); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1279 | |
| 1280 | ret = snd_card_register(codec->card); |
| 1281 | if (ret < 0) { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1282 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1283 | codec->name); |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1284 | goto out; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1285 | } |
| 1286 | |
Mark Brown | 08c8efe | 2008-01-21 14:33:37 +0100 | [diff] [blame] | 1287 | mutex_lock(&codec->mutex); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1288 | #ifdef CONFIG_SND_SOC_AC97_BUS |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1289 | if (ac97) { |
| 1290 | ret = soc_ac97_dev_register(codec); |
| 1291 | if (ret < 0) { |
| 1292 | printk(KERN_ERR "asoc: AC97 device register failed\n"); |
| 1293 | snd_card_free(codec->card); |
Mark Brown | 08c8efe | 2008-01-21 14:33:37 +0100 | [diff] [blame] | 1294 | mutex_unlock(&codec->mutex); |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1295 | goto out; |
| 1296 | } |
| 1297 | } |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1298 | #endif |
| 1299 | |
Liam Girdwood | 12e74f7 | 2006-10-16 21:19:48 +0200 | [diff] [blame] | 1300 | err = snd_soc_dapm_sys_add(socdev->dev); |
| 1301 | if (err < 0) |
| 1302 | printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); |
| 1303 | |
| 1304 | err = device_create_file(socdev->dev, &dev_attr_codec_reg); |
| 1305 | if (err < 0) |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1306 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); |
Mark Brown | 08c8efe | 2008-01-21 14:33:37 +0100 | [diff] [blame] | 1307 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 1308 | soc_init_debugfs(socdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1309 | mutex_unlock(&codec->mutex); |
Mark Brown | 08c8efe | 2008-01-21 14:33:37 +0100 | [diff] [blame] | 1310 | |
| 1311 | out: |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1312 | return ret; |
| 1313 | } |
Mark Brown | 968a602 | 2008-11-28 11:49:07 +0000 | [diff] [blame] | 1314 | EXPORT_SYMBOL_GPL(snd_soc_init_card); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1315 | |
| 1316 | /** |
| 1317 | * snd_soc_free_pcms - free sound card and pcms |
| 1318 | * @socdev: the SoC audio device |
| 1319 | * |
| 1320 | * Frees sound card and pcms associated with the socdev. |
| 1321 | * Also unregister the codec if it is an AC97 device. |
| 1322 | */ |
| 1323 | void snd_soc_free_pcms(struct snd_soc_device *socdev) |
| 1324 | { |
| 1325 | struct snd_soc_codec *codec = socdev->codec; |
Liam Girdwood | a68660e | 2007-05-10 19:27:27 +0200 | [diff] [blame] | 1326 | #ifdef CONFIG_SND_SOC_AC97_BUS |
Liam Girdwood | 3c4b266 | 2008-07-07 16:07:17 +0100 | [diff] [blame] | 1327 | struct snd_soc_dai *codec_dai; |
Liam Girdwood | a68660e | 2007-05-10 19:27:27 +0200 | [diff] [blame] | 1328 | int i; |
| 1329 | #endif |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1330 | |
| 1331 | mutex_lock(&codec->mutex); |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 1332 | soc_cleanup_debugfs(socdev); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1333 | #ifdef CONFIG_SND_SOC_AC97_BUS |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1334 | for (i = 0; i < codec->num_dai; i++) { |
Liam Girdwood | a68660e | 2007-05-10 19:27:27 +0200 | [diff] [blame] | 1335 | codec_dai = &codec->dai[i]; |
Mark Brown | 3ba9e10 | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 1336 | if (codec_dai->ac97_control && codec->ac97) { |
Liam Girdwood | a68660e | 2007-05-10 19:27:27 +0200 | [diff] [blame] | 1337 | soc_ac97_dev_unregister(codec); |
| 1338 | goto free_card; |
| 1339 | } |
| 1340 | } |
| 1341 | free_card: |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1342 | #endif |
| 1343 | |
| 1344 | if (codec->card) |
| 1345 | snd_card_free(codec->card); |
| 1346 | device_remove_file(socdev->dev, &dev_attr_codec_reg); |
| 1347 | mutex_unlock(&codec->mutex); |
| 1348 | } |
| 1349 | EXPORT_SYMBOL_GPL(snd_soc_free_pcms); |
| 1350 | |
| 1351 | /** |
| 1352 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters |
| 1353 | * @substream: the pcm substream |
| 1354 | * @hw: the hardware parameters |
| 1355 | * |
| 1356 | * Sets the substream runtime hardware parameters. |
| 1357 | */ |
| 1358 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, |
| 1359 | const struct snd_pcm_hardware *hw) |
| 1360 | { |
| 1361 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1362 | runtime->hw.info = hw->info; |
| 1363 | runtime->hw.formats = hw->formats; |
| 1364 | runtime->hw.period_bytes_min = hw->period_bytes_min; |
| 1365 | runtime->hw.period_bytes_max = hw->period_bytes_max; |
| 1366 | runtime->hw.periods_min = hw->periods_min; |
| 1367 | runtime->hw.periods_max = hw->periods_max; |
| 1368 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; |
| 1369 | runtime->hw.fifo_size = hw->fifo_size; |
| 1370 | return 0; |
| 1371 | } |
| 1372 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); |
| 1373 | |
| 1374 | /** |
| 1375 | * snd_soc_cnew - create new control |
| 1376 | * @_template: control template |
| 1377 | * @data: control private data |
| 1378 | * @lnng_name: control long name |
| 1379 | * |
| 1380 | * Create a new mixer control from a template control. |
| 1381 | * |
| 1382 | * Returns 0 for success, else error. |
| 1383 | */ |
| 1384 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, |
| 1385 | void *data, char *long_name) |
| 1386 | { |
| 1387 | struct snd_kcontrol_new template; |
| 1388 | |
| 1389 | memcpy(&template, _template, sizeof(template)); |
| 1390 | if (long_name) |
| 1391 | template.name = long_name; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1392 | template.index = 0; |
| 1393 | |
| 1394 | return snd_ctl_new1(&template, data); |
| 1395 | } |
| 1396 | EXPORT_SYMBOL_GPL(snd_soc_cnew); |
| 1397 | |
| 1398 | /** |
| 1399 | * snd_soc_info_enum_double - enumerated double mixer info callback |
| 1400 | * @kcontrol: mixer control |
| 1401 | * @uinfo: control element information |
| 1402 | * |
| 1403 | * Callback to provide information about a double enumerated |
| 1404 | * mixer control. |
| 1405 | * |
| 1406 | * Returns 0 for success. |
| 1407 | */ |
| 1408 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, |
| 1409 | struct snd_ctl_elem_info *uinfo) |
| 1410 | { |
| 1411 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1412 | |
| 1413 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| 1414 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1415 | uinfo->value.enumerated.items = e->max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1416 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1417 | if (uinfo->value.enumerated.item > e->max - 1) |
| 1418 | uinfo->value.enumerated.item = e->max - 1; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1419 | strcpy(uinfo->value.enumerated.name, |
| 1420 | e->texts[uinfo->value.enumerated.item]); |
| 1421 | return 0; |
| 1422 | } |
| 1423 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); |
| 1424 | |
| 1425 | /** |
| 1426 | * snd_soc_get_enum_double - enumerated double mixer get callback |
| 1427 | * @kcontrol: mixer control |
| 1428 | * @uinfo: control element information |
| 1429 | * |
| 1430 | * Callback to get the value of a double enumerated mixer. |
| 1431 | * |
| 1432 | * Returns 0 for success. |
| 1433 | */ |
| 1434 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, |
| 1435 | struct snd_ctl_elem_value *ucontrol) |
| 1436 | { |
| 1437 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1438 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1439 | unsigned short val, bitmask; |
| 1440 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1441 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1442 | ; |
| 1443 | val = snd_soc_read(codec, e->reg); |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1444 | ucontrol->value.enumerated.item[0] |
| 1445 | = (val >> e->shift_l) & (bitmask - 1); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1446 | if (e->shift_l != e->shift_r) |
| 1447 | ucontrol->value.enumerated.item[1] = |
| 1448 | (val >> e->shift_r) & (bitmask - 1); |
| 1449 | |
| 1450 | return 0; |
| 1451 | } |
| 1452 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); |
| 1453 | |
| 1454 | /** |
| 1455 | * snd_soc_put_enum_double - enumerated double mixer put callback |
| 1456 | * @kcontrol: mixer control |
| 1457 | * @uinfo: control element information |
| 1458 | * |
| 1459 | * Callback to set the value of a double enumerated mixer. |
| 1460 | * |
| 1461 | * Returns 0 for success. |
| 1462 | */ |
| 1463 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, |
| 1464 | struct snd_ctl_elem_value *ucontrol) |
| 1465 | { |
| 1466 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1467 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1468 | unsigned short val; |
| 1469 | unsigned short mask, bitmask; |
| 1470 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1471 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1472 | ; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1473 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1474 | return -EINVAL; |
| 1475 | val = ucontrol->value.enumerated.item[0] << e->shift_l; |
| 1476 | mask = (bitmask - 1) << e->shift_l; |
| 1477 | if (e->shift_l != e->shift_r) { |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1478 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1479 | return -EINVAL; |
| 1480 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; |
| 1481 | mask |= (bitmask - 1) << e->shift_r; |
| 1482 | } |
| 1483 | |
| 1484 | return snd_soc_update_bits(codec, e->reg, mask, val); |
| 1485 | } |
| 1486 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); |
| 1487 | |
| 1488 | /** |
| 1489 | * snd_soc_info_enum_ext - external enumerated single mixer info callback |
| 1490 | * @kcontrol: mixer control |
| 1491 | * @uinfo: control element information |
| 1492 | * |
| 1493 | * Callback to provide information about an external enumerated |
| 1494 | * single mixer. |
| 1495 | * |
| 1496 | * Returns 0 for success. |
| 1497 | */ |
| 1498 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, |
| 1499 | struct snd_ctl_elem_info *uinfo) |
| 1500 | { |
| 1501 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1502 | |
| 1503 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| 1504 | uinfo->count = 1; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1505 | uinfo->value.enumerated.items = e->max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1506 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1507 | if (uinfo->value.enumerated.item > e->max - 1) |
| 1508 | uinfo->value.enumerated.item = e->max - 1; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1509 | strcpy(uinfo->value.enumerated.name, |
| 1510 | e->texts[uinfo->value.enumerated.item]); |
| 1511 | return 0; |
| 1512 | } |
| 1513 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); |
| 1514 | |
| 1515 | /** |
| 1516 | * snd_soc_info_volsw_ext - external single mixer info callback |
| 1517 | * @kcontrol: mixer control |
| 1518 | * @uinfo: control element information |
| 1519 | * |
| 1520 | * Callback to provide information about a single external mixer control. |
| 1521 | * |
| 1522 | * Returns 0 for success. |
| 1523 | */ |
| 1524 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, |
| 1525 | struct snd_ctl_elem_info *uinfo) |
| 1526 | { |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1527 | int max = kcontrol->private_value; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1528 | |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1529 | if (max == 1) |
| 1530 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1531 | else |
| 1532 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 1533 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1534 | uinfo->count = 1; |
| 1535 | uinfo->value.integer.min = 0; |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1536 | uinfo->value.integer.max = max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1537 | return 0; |
| 1538 | } |
| 1539 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); |
| 1540 | |
| 1541 | /** |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1542 | * snd_soc_info_volsw - single mixer info callback |
| 1543 | * @kcontrol: mixer control |
| 1544 | * @uinfo: control element information |
| 1545 | * |
| 1546 | * Callback to provide information about a single mixer control. |
| 1547 | * |
| 1548 | * Returns 0 for success. |
| 1549 | */ |
| 1550 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, |
| 1551 | struct snd_ctl_elem_info *uinfo) |
| 1552 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1553 | struct soc_mixer_control *mc = |
| 1554 | (struct soc_mixer_control *)kcontrol->private_value; |
| 1555 | int max = mc->max; |
Mark Brown | 762b8df | 2008-10-30 12:37:08 +0000 | [diff] [blame] | 1556 | unsigned int shift = mc->shift; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1557 | unsigned int rshift = mc->rshift; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1558 | |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1559 | if (max == 1) |
| 1560 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1561 | else |
| 1562 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 1563 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1564 | uinfo->count = shift == rshift ? 1 : 2; |
| 1565 | uinfo->value.integer.min = 0; |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1566 | uinfo->value.integer.max = max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1567 | return 0; |
| 1568 | } |
| 1569 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); |
| 1570 | |
| 1571 | /** |
| 1572 | * snd_soc_get_volsw - single mixer get callback |
| 1573 | * @kcontrol: mixer control |
| 1574 | * @uinfo: control element information |
| 1575 | * |
| 1576 | * Callback to get the value of a single mixer control. |
| 1577 | * |
| 1578 | * Returns 0 for success. |
| 1579 | */ |
| 1580 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, |
| 1581 | struct snd_ctl_elem_value *ucontrol) |
| 1582 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1583 | struct soc_mixer_control *mc = |
| 1584 | (struct soc_mixer_control *)kcontrol->private_value; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1585 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1586 | unsigned int reg = mc->reg; |
| 1587 | unsigned int shift = mc->shift; |
| 1588 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1589 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1590 | unsigned int mask = (1 << fls(max)) - 1; |
| 1591 | unsigned int invert = mc->invert; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1592 | |
| 1593 | ucontrol->value.integer.value[0] = |
| 1594 | (snd_soc_read(codec, reg) >> shift) & mask; |
| 1595 | if (shift != rshift) |
| 1596 | ucontrol->value.integer.value[1] = |
| 1597 | (snd_soc_read(codec, reg) >> rshift) & mask; |
| 1598 | if (invert) { |
| 1599 | ucontrol->value.integer.value[0] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1600 | max - ucontrol->value.integer.value[0]; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1601 | if (shift != rshift) |
| 1602 | ucontrol->value.integer.value[1] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1603 | max - ucontrol->value.integer.value[1]; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1604 | } |
| 1605 | |
| 1606 | return 0; |
| 1607 | } |
| 1608 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); |
| 1609 | |
| 1610 | /** |
| 1611 | * snd_soc_put_volsw - single mixer put callback |
| 1612 | * @kcontrol: mixer control |
| 1613 | * @uinfo: control element information |
| 1614 | * |
| 1615 | * Callback to set the value of a single mixer control. |
| 1616 | * |
| 1617 | * Returns 0 for success. |
| 1618 | */ |
| 1619 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, |
| 1620 | struct snd_ctl_elem_value *ucontrol) |
| 1621 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1622 | struct soc_mixer_control *mc = |
| 1623 | (struct soc_mixer_control *)kcontrol->private_value; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1624 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1625 | unsigned int reg = mc->reg; |
| 1626 | unsigned int shift = mc->shift; |
| 1627 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1628 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1629 | unsigned int mask = (1 << fls(max)) - 1; |
| 1630 | unsigned int invert = mc->invert; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1631 | unsigned short val, val2, val_mask; |
| 1632 | |
| 1633 | val = (ucontrol->value.integer.value[0] & mask); |
| 1634 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1635 | val = max - val; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1636 | val_mask = mask << shift; |
| 1637 | val = val << shift; |
| 1638 | if (shift != rshift) { |
| 1639 | val2 = (ucontrol->value.integer.value[1] & mask); |
| 1640 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1641 | val2 = max - val2; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1642 | val_mask |= mask << rshift; |
| 1643 | val |= val2 << rshift; |
| 1644 | } |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1645 | return snd_soc_update_bits(codec, reg, val_mask, val); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1646 | } |
| 1647 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
| 1648 | |
| 1649 | /** |
| 1650 | * snd_soc_info_volsw_2r - double mixer info callback |
| 1651 | * @kcontrol: mixer control |
| 1652 | * @uinfo: control element information |
| 1653 | * |
| 1654 | * Callback to provide information about a double mixer control that |
| 1655 | * spans 2 codec registers. |
| 1656 | * |
| 1657 | * Returns 0 for success. |
| 1658 | */ |
| 1659 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, |
| 1660 | struct snd_ctl_elem_info *uinfo) |
| 1661 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1662 | struct soc_mixer_control *mc = |
| 1663 | (struct soc_mixer_control *)kcontrol->private_value; |
| 1664 | int max = mc->max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1665 | |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1666 | if (max == 1) |
| 1667 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1668 | else |
| 1669 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 1670 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1671 | uinfo->count = 2; |
| 1672 | uinfo->value.integer.min = 0; |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1673 | uinfo->value.integer.max = max; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1674 | return 0; |
| 1675 | } |
| 1676 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); |
| 1677 | |
| 1678 | /** |
| 1679 | * snd_soc_get_volsw_2r - double mixer get callback |
| 1680 | * @kcontrol: mixer control |
| 1681 | * @uinfo: control element information |
| 1682 | * |
| 1683 | * Callback to get the value of a double mixer control that spans 2 registers. |
| 1684 | * |
| 1685 | * Returns 0 for success. |
| 1686 | */ |
| 1687 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, |
| 1688 | struct snd_ctl_elem_value *ucontrol) |
| 1689 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1690 | struct soc_mixer_control *mc = |
| 1691 | (struct soc_mixer_control *)kcontrol->private_value; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1692 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1693 | unsigned int reg = mc->reg; |
| 1694 | unsigned int reg2 = mc->rreg; |
| 1695 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1696 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1697 | unsigned int mask = (1<<fls(max))-1; |
| 1698 | unsigned int invert = mc->invert; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1699 | |
| 1700 | ucontrol->value.integer.value[0] = |
| 1701 | (snd_soc_read(codec, reg) >> shift) & mask; |
| 1702 | ucontrol->value.integer.value[1] = |
| 1703 | (snd_soc_read(codec, reg2) >> shift) & mask; |
| 1704 | if (invert) { |
| 1705 | ucontrol->value.integer.value[0] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1706 | max - ucontrol->value.integer.value[0]; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1707 | ucontrol->value.integer.value[1] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1708 | max - ucontrol->value.integer.value[1]; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1709 | } |
| 1710 | |
| 1711 | return 0; |
| 1712 | } |
| 1713 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); |
| 1714 | |
| 1715 | /** |
| 1716 | * snd_soc_put_volsw_2r - double mixer set callback |
| 1717 | * @kcontrol: mixer control |
| 1718 | * @uinfo: control element information |
| 1719 | * |
| 1720 | * Callback to set the value of a double mixer control that spans 2 registers. |
| 1721 | * |
| 1722 | * Returns 0 for success. |
| 1723 | */ |
| 1724 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, |
| 1725 | struct snd_ctl_elem_value *ucontrol) |
| 1726 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1727 | struct soc_mixer_control *mc = |
| 1728 | (struct soc_mixer_control *)kcontrol->private_value; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1729 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1730 | unsigned int reg = mc->reg; |
| 1731 | unsigned int reg2 = mc->rreg; |
| 1732 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1733 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1734 | unsigned int mask = (1 << fls(max)) - 1; |
| 1735 | unsigned int invert = mc->invert; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1736 | int err; |
| 1737 | unsigned short val, val2, val_mask; |
| 1738 | |
| 1739 | val_mask = mask << shift; |
| 1740 | val = (ucontrol->value.integer.value[0] & mask); |
| 1741 | val2 = (ucontrol->value.integer.value[1] & mask); |
| 1742 | |
| 1743 | if (invert) { |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1744 | val = max - val; |
| 1745 | val2 = max - val2; |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1746 | } |
| 1747 | |
| 1748 | val = val << shift; |
| 1749 | val2 = val2 << shift; |
| 1750 | |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1751 | err = snd_soc_update_bits(codec, reg, val_mask, val); |
| 1752 | if (err < 0) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1753 | return err; |
| 1754 | |
| 1755 | err = snd_soc_update_bits(codec, reg2, val_mask, val2); |
| 1756 | return err; |
| 1757 | } |
| 1758 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); |
| 1759 | |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1760 | /** |
| 1761 | * snd_soc_info_volsw_s8 - signed mixer info callback |
| 1762 | * @kcontrol: mixer control |
| 1763 | * @uinfo: control element information |
| 1764 | * |
| 1765 | * Callback to provide information about a signed mixer control. |
| 1766 | * |
| 1767 | * Returns 0 for success. |
| 1768 | */ |
| 1769 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, |
| 1770 | struct snd_ctl_elem_info *uinfo) |
| 1771 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1772 | struct soc_mixer_control *mc = |
| 1773 | (struct soc_mixer_control *)kcontrol->private_value; |
| 1774 | int max = mc->max; |
| 1775 | int min = mc->min; |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1776 | |
| 1777 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 1778 | uinfo->count = 2; |
| 1779 | uinfo->value.integer.min = 0; |
| 1780 | uinfo->value.integer.max = max-min; |
| 1781 | return 0; |
| 1782 | } |
| 1783 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); |
| 1784 | |
| 1785 | /** |
| 1786 | * snd_soc_get_volsw_s8 - signed mixer get callback |
| 1787 | * @kcontrol: mixer control |
| 1788 | * @uinfo: control element information |
| 1789 | * |
| 1790 | * Callback to get the value of a signed mixer control. |
| 1791 | * |
| 1792 | * Returns 0 for success. |
| 1793 | */ |
| 1794 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, |
| 1795 | struct snd_ctl_elem_value *ucontrol) |
| 1796 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1797 | struct soc_mixer_control *mc = |
| 1798 | (struct soc_mixer_control *)kcontrol->private_value; |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1799 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1800 | unsigned int reg = mc->reg; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1801 | int min = mc->min; |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1802 | int val = snd_soc_read(codec, reg); |
| 1803 | |
| 1804 | ucontrol->value.integer.value[0] = |
| 1805 | ((signed char)(val & 0xff))-min; |
| 1806 | ucontrol->value.integer.value[1] = |
| 1807 | ((signed char)((val >> 8) & 0xff))-min; |
| 1808 | return 0; |
| 1809 | } |
| 1810 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); |
| 1811 | |
| 1812 | /** |
| 1813 | * snd_soc_put_volsw_sgn - signed mixer put callback |
| 1814 | * @kcontrol: mixer control |
| 1815 | * @uinfo: control element information |
| 1816 | * |
| 1817 | * Callback to set the value of a signed mixer control. |
| 1818 | * |
| 1819 | * Returns 0 for success. |
| 1820 | */ |
| 1821 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, |
| 1822 | struct snd_ctl_elem_value *ucontrol) |
| 1823 | { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1824 | struct soc_mixer_control *mc = |
| 1825 | (struct soc_mixer_control *)kcontrol->private_value; |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1826 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1827 | unsigned int reg = mc->reg; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1828 | int min = mc->min; |
Mark Brown | e13ac2e | 2008-05-28 17:58:05 +0100 | [diff] [blame] | 1829 | unsigned short val; |
| 1830 | |
| 1831 | val = (ucontrol->value.integer.value[0]+min) & 0xff; |
| 1832 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; |
| 1833 | |
| 1834 | return snd_soc_update_bits(codec, reg, 0xffff, val); |
| 1835 | } |
| 1836 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); |
| 1837 | |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1838 | /** |
| 1839 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. |
| 1840 | * @dai: DAI |
| 1841 | * @clk_id: DAI specific clock ID |
| 1842 | * @freq: new clock frequency in Hz |
| 1843 | * @dir: new clock direction - input/output. |
| 1844 | * |
| 1845 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. |
| 1846 | */ |
| 1847 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, |
| 1848 | unsigned int freq, int dir) |
| 1849 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1850 | if (dai->ops.set_sysclk) |
| 1851 | return dai->ops.set_sysclk(dai, clk_id, freq, dir); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1852 | else |
| 1853 | return -EINVAL; |
| 1854 | } |
| 1855 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); |
| 1856 | |
| 1857 | /** |
| 1858 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. |
| 1859 | * @dai: DAI |
| 1860 | * @clk_id: DAI specific clock divider ID |
| 1861 | * @div: new clock divisor. |
| 1862 | * |
| 1863 | * Configures the clock dividers. This is used to derive the best DAI bit and |
| 1864 | * frame clocks from the system or master clock. It's best to set the DAI bit |
| 1865 | * and frame clocks as low as possible to save system power. |
| 1866 | */ |
| 1867 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, |
| 1868 | int div_id, int div) |
| 1869 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1870 | if (dai->ops.set_clkdiv) |
| 1871 | return dai->ops.set_clkdiv(dai, div_id, div); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1872 | else |
| 1873 | return -EINVAL; |
| 1874 | } |
| 1875 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); |
| 1876 | |
| 1877 | /** |
| 1878 | * snd_soc_dai_set_pll - configure DAI PLL. |
| 1879 | * @dai: DAI |
| 1880 | * @pll_id: DAI specific PLL ID |
| 1881 | * @freq_in: PLL input clock frequency in Hz |
| 1882 | * @freq_out: requested PLL output clock frequency in Hz |
| 1883 | * |
| 1884 | * Configures and enables PLL to generate output clock based on input clock. |
| 1885 | */ |
| 1886 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, |
| 1887 | int pll_id, unsigned int freq_in, unsigned int freq_out) |
| 1888 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1889 | if (dai->ops.set_pll) |
| 1890 | return dai->ops.set_pll(dai, pll_id, freq_in, freq_out); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1891 | else |
| 1892 | return -EINVAL; |
| 1893 | } |
| 1894 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); |
| 1895 | |
| 1896 | /** |
| 1897 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. |
| 1898 | * @dai: DAI |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1899 | * @fmt: SND_SOC_DAIFMT_ format value. |
| 1900 | * |
| 1901 | * Configures the DAI hardware format and clocking. |
| 1902 | */ |
| 1903 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| 1904 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1905 | if (dai->ops.set_fmt) |
| 1906 | return dai->ops.set_fmt(dai, fmt); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1907 | else |
| 1908 | return -EINVAL; |
| 1909 | } |
| 1910 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); |
| 1911 | |
| 1912 | /** |
| 1913 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. |
| 1914 | * @dai: DAI |
| 1915 | * @mask: DAI specific mask representing used slots. |
| 1916 | * @slots: Number of slots in use. |
| 1917 | * |
| 1918 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI |
| 1919 | * specific. |
| 1920 | */ |
| 1921 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, |
| 1922 | unsigned int mask, int slots) |
| 1923 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1924 | if (dai->ops.set_sysclk) |
| 1925 | return dai->ops.set_tdm_slot(dai, mask, slots); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1926 | else |
| 1927 | return -EINVAL; |
| 1928 | } |
| 1929 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); |
| 1930 | |
| 1931 | /** |
| 1932 | * snd_soc_dai_set_tristate - configure DAI system or master clock. |
| 1933 | * @dai: DAI |
| 1934 | * @tristate: tristate enable |
| 1935 | * |
| 1936 | * Tristates the DAI so that others can use it. |
| 1937 | */ |
| 1938 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) |
| 1939 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1940 | if (dai->ops.set_sysclk) |
| 1941 | return dai->ops.set_tristate(dai, tristate); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1942 | else |
| 1943 | return -EINVAL; |
| 1944 | } |
| 1945 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); |
| 1946 | |
| 1947 | /** |
| 1948 | * snd_soc_dai_digital_mute - configure DAI system or master clock. |
| 1949 | * @dai: DAI |
| 1950 | * @mute: mute enable |
| 1951 | * |
| 1952 | * Mutes the DAI DAC. |
| 1953 | */ |
| 1954 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) |
| 1955 | { |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 1956 | if (dai->ops.digital_mute) |
| 1957 | return dai->ops.digital_mute(dai, mute); |
Liam Girdwood | 8c6529d | 2008-07-08 13:19:13 +0100 | [diff] [blame] | 1958 | else |
| 1959 | return -EINVAL; |
| 1960 | } |
| 1961 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); |
| 1962 | |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1963 | static int __devinit snd_soc_init(void) |
| 1964 | { |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1965 | return platform_driver_register(&soc_driver); |
| 1966 | } |
| 1967 | |
Mark Brown | 7d8c16a | 2008-11-30 22:11:24 +0000 | [diff] [blame] | 1968 | static void __exit snd_soc_exit(void) |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1969 | { |
Mark Brown | 3ff3f64 | 2008-05-19 12:32:25 +0200 | [diff] [blame] | 1970 | platform_driver_unregister(&soc_driver); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1971 | } |
| 1972 | |
| 1973 | module_init(snd_soc_init); |
| 1974 | module_exit(snd_soc_exit); |
| 1975 | |
| 1976 | /* Module information */ |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 1977 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
Frank Mandarino | db2a416 | 2006-10-06 18:31:09 +0200 | [diff] [blame] | 1978 | MODULE_DESCRIPTION("ALSA SoC Core"); |
| 1979 | MODULE_LICENSE("GPL"); |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 1980 | MODULE_ALIAS("platform:soc-audio"); |