X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=sound%2Fsoc%2Fsoc-core.c;h=a03bac943aafc8d3ef914f7c558999a1cbc0824d;hb=e200e0ec9148ad2941e30d59b9552973d49a82b6;hp=ad381138fc2e482e0bf0110a96cf32c385ba8c04;hpb=6010b2da1f11752dd58191423fc9878b0ce420c8;p=safe%2Fjmp%2Flinux-2.6 diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index ad38113..a03bac9 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -4,8 +4,7 @@ * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. * - * Author: Liam Girdwood - * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com + * Author: Liam Girdwood * with code, comments and ideas from :- * Richard Purdie * @@ -27,7 +26,9 @@ #include #include #include +#include #include +#include #include #include #include @@ -35,18 +36,22 @@ #include #include -/* debug */ -#define SOC_DEBUG 0 -#if SOC_DEBUG -#define dbg(format, arg...) printk(format, ## arg) -#else -#define dbg(format, arg...) -#endif - static DEFINE_MUTEX(pcm_mutex); -static DEFINE_MUTEX(io_mutex); static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); +#ifdef CONFIG_DEBUG_FS +static struct dentry *debugfs_root; +#endif + +static DEFINE_MUTEX(client_mutex); +static LIST_HEAD(card_list); +static LIST_HEAD(dai_list); +static LIST_HEAD(platform_list); +static LIST_HEAD(codec_list); + +static int snd_soc_register_card(struct snd_soc_card *card); +static int snd_soc_unregister_card(struct snd_soc_card *card); + /* * This is a timeout to do a DAPM powerdown after a stream is closed(). * It can be used to eliminate pops between different playback streams, e.g. @@ -75,6 +80,196 @@ static int run_delayed_work(struct delayed_work *dwork) return ret; } +/* codec register dump */ +static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) +{ + int i, step = 1, count = 0; + + if (!codec->reg_cache_size) + return 0; + + if (codec->reg_cache_step) + step = codec->reg_cache_step; + + count += sprintf(buf, "%s registers\n", codec->name); + for (i = 0; i < codec->reg_cache_size; i += step) { + if (codec->readable_register && !codec->readable_register(i)) + continue; + + count += sprintf(buf + count, "%2x: ", i); + if (count >= PAGE_SIZE - 1) + break; + + if (codec->display_register) + count += codec->display_register(codec, buf + count, + PAGE_SIZE - count, i); + else + count += snprintf(buf + count, PAGE_SIZE - count, + "%4x", codec->read(codec, i)); + + if (count >= PAGE_SIZE - 1) + break; + + count += snprintf(buf + count, PAGE_SIZE - count, "\n"); + if (count >= PAGE_SIZE - 1) + break; + } + + /* Truncate count; min() would cause a warning */ + if (count >= PAGE_SIZE) + count = PAGE_SIZE - 1; + + return count; +} +static ssize_t codec_reg_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_soc_device *devdata = dev_get_drvdata(dev); + return soc_codec_reg_show(devdata->card->codec, buf); +} + +static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); + +static ssize_t pmdown_time_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_soc_device *socdev = dev_get_drvdata(dev); + struct snd_soc_card *card = socdev->card; + + return sprintf(buf, "%ld\n", card->pmdown_time); +} + +static ssize_t pmdown_time_set(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct snd_soc_device *socdev = dev_get_drvdata(dev); + struct snd_soc_card *card = socdev->card; + + strict_strtol(buf, 10, &card->pmdown_time); + + return count; +} + +static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); + +#ifdef CONFIG_DEBUG_FS +static int codec_reg_open_file(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + ssize_t ret; + struct snd_soc_codec *codec = file->private_data; + char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + ret = soc_codec_reg_show(codec, buf); + if (ret >= 0) + ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); + kfree(buf); + return ret; +} + +static ssize_t codec_reg_write_file(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[32]; + int buf_size; + char *start = buf; + unsigned long reg, value; + int step = 1; + struct snd_soc_codec *codec = file->private_data; + + buf_size = min(count, (sizeof(buf)-1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + if (codec->reg_cache_step) + step = codec->reg_cache_step; + + while (*start == ' ') + start++; + reg = simple_strtoul(start, &start, 16); + if ((reg >= codec->reg_cache_size) || (reg % step)) + return -EINVAL; + while (*start == ' ') + start++; + if (strict_strtoul(start, 16, &value)) + return -EINVAL; + codec->write(codec, reg, value); + return buf_size; +} + +static const struct file_operations codec_reg_fops = { + .open = codec_reg_open_file, + .read = codec_reg_read_file, + .write = codec_reg_write_file, +}; + +static void soc_init_codec_debugfs(struct snd_soc_codec *codec) +{ + char codec_root[128]; + + if (codec->dev) + snprintf(codec_root, sizeof(codec_root), + "%s.%s", codec->name, dev_name(codec->dev)); + else + snprintf(codec_root, sizeof(codec_root), + "%s", codec->name); + + codec->debugfs_codec_root = debugfs_create_dir(codec_root, + debugfs_root); + if (!codec->debugfs_codec_root) { + printk(KERN_WARNING + "ASoC: Failed to create codec debugfs directory\n"); + return; + } + + codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, + codec->debugfs_codec_root, + codec, &codec_reg_fops); + if (!codec->debugfs_reg) + printk(KERN_WARNING + "ASoC: Failed to create codec register debugfs file\n"); + + codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, + codec->debugfs_codec_root, + &codec->pop_time); + if (!codec->debugfs_pop_time) + printk(KERN_WARNING + "Failed to create pop time debugfs file\n"); + + codec->debugfs_dapm = debugfs_create_dir("dapm", + codec->debugfs_codec_root); + if (!codec->debugfs_dapm) + printk(KERN_WARNING + "Failed to create DAPM debugfs directory\n"); + + snd_soc_dapm_debugfs_init(codec); +} + +static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) +{ + debugfs_remove_recursive(codec->debugfs_codec_root); +} + +#else + +static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) +{ +} + +static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) +{ +} +#endif + #ifdef CONFIG_SND_SOC_AC97_BUS /* unregister ac97 codec */ static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) @@ -93,11 +288,11 @@ static int soc_ac97_dev_register(struct snd_soc_codec *codec) int err; codec->ac97->dev.bus = &ac97_bus_type; - codec->ac97->dev.parent = NULL; + codec->ac97->dev.parent = codec->card->dev; codec->ac97->dev.release = soc_ac97_device_release; - snprintf(codec->ac97->dev.bus_id, BUS_ID_SIZE, "%d-%d:%s", - codec->card->number, 0, codec->name); + dev_set_name(&codec->ac97->dev, "%d-%d:%s", + codec->card->number, 0, codec->name); err = device_register(&codec->ac97->dev); if (err < 0) { snd_printk(KERN_ERR "Can't register ac97 bus\n"); @@ -108,18 +303,33 @@ static int soc_ac97_dev_register(struct snd_soc_codec *codec) } #endif -static inline const char *get_dai_name(int type) +static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) { - switch (type) { - case SND_SOC_DAI_AC97_BUS: - case SND_SOC_DAI_AC97: - return "AC97"; - case SND_SOC_DAI_I2S: - return "I2S"; - case SND_SOC_DAI_PCM: - return "PCM"; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_card *card = socdev->card; + struct snd_soc_dai_link *machine = rtd->dai; + struct snd_soc_dai *cpu_dai = machine->cpu_dai; + struct snd_soc_dai *codec_dai = machine->codec_dai; + int ret; + + if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates || + machine->symmetric_rates) { + dev_dbg(card->dev, "Symmetry forces %dHz rate\n", + machine->rate); + + ret = snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_RATE, + machine->rate, + machine->rate); + if (ret < 0) { + dev_err(card->dev, + "Unable to apply rate symmetry constraint: %d\n", ret); + return ret; + } } - return NULL; + + return 0; } /* @@ -131,9 +341,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_card *card = socdev->card; struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; int ret = 0; @@ -141,8 +352,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) mutex_lock(&pcm_mutex); /* startup the audio subsystem */ - if (cpu_dai->ops.startup) { - ret = cpu_dai->ops.startup(substream); + if (cpu_dai->ops->startup) { + ret = cpu_dai->ops->startup(substream, cpu_dai); if (ret < 0) { printk(KERN_ERR "asoc: can't open interface %s\n", cpu_dai->name); @@ -158,8 +369,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) } } - if (codec_dai->ops.startup) { - ret = codec_dai->ops.startup(substream); + if (codec_dai->ops->startup) { + ret = codec_dai->ops->startup(substream, codec_dai); if (ret < 0) { printk(KERN_ERR "asoc: can't open codec %s\n", codec_dai->name); @@ -229,12 +440,19 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) goto machine_err; } - dbg("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); - dbg("asoc: rate mask 0x%x\n", runtime->hw.rates); - dbg("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, - runtime->hw.channels_max); - dbg("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, - runtime->hw.rate_max); + /* Symmetry only applies if we've already got an active stream. */ + if (cpu_dai->active || codec_dai->active) { + ret = soc_pcm_apply_symmetry(substream); + if (ret != 0) + goto machine_err; + } + + pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); + pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); + pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, + runtime->hw.channels_max); + pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, + runtime->hw.rate_max); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_dai->playback.active = codec_dai->playback.active = 1; @@ -242,7 +460,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) cpu_dai->capture.active = codec_dai->capture.active = 1; cpu_dai->active = codec_dai->active = 1; cpu_dai->runtime = runtime; - socdev->codec->active++; + card->codec->active++; mutex_unlock(&pcm_mutex); return 0; @@ -255,8 +473,8 @@ codec_dai_err: platform->pcm_ops->close(substream); platform_err: - if (cpu_dai->ops.shutdown) - cpu_dai->ops.shutdown(substream); + if (cpu_dai->ops->shutdown) + cpu_dai->ops->shutdown(substream, cpu_dai); out: mutex_unlock(&pcm_mutex); return ret; @@ -269,9 +487,9 @@ out: */ static void close_delayed_work(struct work_struct *work) { - struct snd_soc_device *socdev = - container_of(work, struct snd_soc_device, delayed_work.work); - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_card *card = container_of(work, struct snd_soc_card, + delayed_work.work); + struct snd_soc_codec *codec = card->codec; struct snd_soc_dai *codec_dai; int i; @@ -279,34 +497,17 @@ static void close_delayed_work(struct work_struct *work) for (i = 0; i < codec->num_dai; i++) { codec_dai = &codec->dai[i]; - dbg("pop wq checking: %s status: %s waiting: %s\n", - codec_dai->playback.stream_name, - codec_dai->playback.active ? "active" : "inactive", - codec_dai->pop_wait ? "yes" : "no"); + pr_debug("pop wq checking: %s status: %s waiting: %s\n", + codec_dai->playback.stream_name, + codec_dai->playback.active ? "active" : "inactive", + codec_dai->pop_wait ? "yes" : "no"); /* are we waiting on this codec DAI stream */ if (codec_dai->pop_wait == 1) { - - /* Reduce power if no longer active */ - if (codec->active == 0) { - dbg("pop wq D1 %s %s\n", codec->name, - codec_dai->playback.stream_name); - snd_soc_dapm_set_bias_level(socdev, - SND_SOC_BIAS_PREPARE); - } - codec_dai->pop_wait = 0; snd_soc_dapm_stream_event(codec, codec_dai->playback.stream_name, SND_SOC_DAPM_STREAM_STOP); - - /* Fall into standby if no longer active */ - if (codec->active == 0) { - dbg("pop wq D3 %s %s\n", codec->name, - codec_dai->playback.stream_name); - snd_soc_dapm_set_bias_level(socdev, - SND_SOC_BIAS_STANDBY); - } } } mutex_unlock(&pcm_mutex); @@ -321,11 +522,12 @@ static int soc_codec_close(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_card *card = socdev->card; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = card->codec; mutex_lock(&pcm_mutex); @@ -346,11 +548,11 @@ static int soc_codec_close(struct snd_pcm_substream *substream) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) snd_soc_dai_digital_mute(codec_dai, 1); - if (cpu_dai->ops.shutdown) - cpu_dai->ops.shutdown(substream); + if (cpu_dai->ops->shutdown) + cpu_dai->ops->shutdown(substream, cpu_dai); - if (codec_dai->ops.shutdown) - codec_dai->ops.shutdown(substream); + if (codec_dai->ops->shutdown) + codec_dai->ops->shutdown(substream, codec_dai); if (machine->ops && machine->ops->shutdown) machine->ops->shutdown(substream); @@ -362,17 +564,13 @@ static int soc_codec_close(struct snd_pcm_substream *substream) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { /* start delayed pop wq here for playback streams */ codec_dai->pop_wait = 1; - schedule_delayed_work(&socdev->delayed_work, - msecs_to_jiffies(pmdown_time)); + schedule_delayed_work(&card->delayed_work, + msecs_to_jiffies(card->pmdown_time)); } else { /* capture streams can be powered down now */ snd_soc_dapm_stream_event(codec, codec_dai->capture.stream_name, SND_SOC_DAPM_STREAM_STOP); - - if (codec->active == 0 && codec_dai->pop_wait == 0) - snd_soc_dapm_set_bias_level(socdev, - SND_SOC_BIAS_STANDBY); } mutex_unlock(&pcm_mutex); @@ -388,11 +586,12 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_card *card = socdev->card; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = card->codec; int ret = 0; mutex_lock(&pcm_mutex); @@ -413,69 +612,40 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) } } - if (codec_dai->ops.prepare) { - ret = codec_dai->ops.prepare(substream); + if (codec_dai->ops->prepare) { + ret = codec_dai->ops->prepare(substream, codec_dai); if (ret < 0) { printk(KERN_ERR "asoc: codec DAI prepare error\n"); goto out; } } - if (cpu_dai->ops.prepare) { - ret = cpu_dai->ops.prepare(substream); + if (cpu_dai->ops->prepare) { + ret = cpu_dai->ops->prepare(substream, cpu_dai); if (ret < 0) { printk(KERN_ERR "asoc: cpu DAI prepare error\n"); goto out; } } - /* we only want to start a DAPM playback stream if we are not waiting - * on an existing one stopping */ - if (codec_dai->pop_wait) { - /* we are waiting for the delayed work to start */ - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) - snd_soc_dapm_stream_event(socdev->codec, - codec_dai->capture.stream_name, - SND_SOC_DAPM_STREAM_START); - else { - codec_dai->pop_wait = 0; - cancel_delayed_work(&socdev->delayed_work); - snd_soc_dai_digital_mute(codec_dai, 0); - } - } else { - /* no delayed work - do we need to power up codec */ - if (codec->bias_level != SND_SOC_BIAS_ON) { - - snd_soc_dapm_set_bias_level(socdev, - SND_SOC_BIAS_PREPARE); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - snd_soc_dapm_stream_event(codec, - codec_dai->playback.stream_name, - SND_SOC_DAPM_STREAM_START); - else - snd_soc_dapm_stream_event(codec, - codec_dai->capture.stream_name, - SND_SOC_DAPM_STREAM_START); - - snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_ON); - snd_soc_dai_digital_mute(codec_dai, 0); - - } else { - /* codec already powered - power on widgets */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - snd_soc_dapm_stream_event(codec, - codec_dai->playback.stream_name, - SND_SOC_DAPM_STREAM_START); - else - snd_soc_dapm_stream_event(codec, - codec_dai->capture.stream_name, - SND_SOC_DAPM_STREAM_START); - - snd_soc_dai_digital_mute(codec_dai, 0); - } + /* cancel any delayed stream shutdown that is pending */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && + codec_dai->pop_wait) { + codec_dai->pop_wait = 0; + cancel_delayed_work(&card->delayed_work); } + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_dapm_stream_event(codec, + codec_dai->playback.stream_name, + SND_SOC_DAPM_STREAM_START); + else + snd_soc_dapm_stream_event(codec, + codec_dai->capture.stream_name, + SND_SOC_DAPM_STREAM_START); + + snd_soc_dai_digital_mute(codec_dai, 0); + out: mutex_unlock(&pcm_mutex); return ret; @@ -492,7 +662,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_card *card = socdev->card; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; int ret = 0; @@ -507,8 +678,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } } - if (codec_dai->ops.hw_params) { - ret = codec_dai->ops.hw_params(substream, params); + if (codec_dai->ops->hw_params) { + ret = codec_dai->ops->hw_params(substream, params, codec_dai); if (ret < 0) { printk(KERN_ERR "asoc: can't set codec %s hw params\n", codec_dai->name); @@ -516,8 +687,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } } - if (cpu_dai->ops.hw_params) { - ret = cpu_dai->ops.hw_params(substream, params); + if (cpu_dai->ops->hw_params) { + ret = cpu_dai->ops->hw_params(substream, params, cpu_dai); if (ret < 0) { printk(KERN_ERR "asoc: interface %s hw params failed\n", cpu_dai->name); @@ -534,17 +705,19 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } } + machine->rate = params_rate(params); + out: mutex_unlock(&pcm_mutex); return ret; platform_err: - if (cpu_dai->ops.hw_free) - cpu_dai->ops.hw_free(substream); + if (cpu_dai->ops->hw_free) + cpu_dai->ops->hw_free(substream, cpu_dai); interface_err: - if (codec_dai->ops.hw_free) - codec_dai->ops.hw_free(substream); + if (codec_dai->ops->hw_free) + codec_dai->ops->hw_free(substream, codec_dai); codec_err: if (machine->ops && machine->ops->hw_free) @@ -562,10 +735,11 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_card *card = socdev->card; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = card->codec; mutex_lock(&pcm_mutex); @@ -582,11 +756,11 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) platform->pcm_ops->hw_free(substream); /* now free hw params for the DAI's */ - if (codec_dai->ops.hw_free) - codec_dai->ops.hw_free(substream); + if (codec_dai->ops->hw_free) + codec_dai->ops->hw_free(substream, codec_dai); - if (cpu_dai->ops.hw_free) - cpu_dai->ops.hw_free(substream); + if (cpu_dai->ops->hw_free) + cpu_dai->ops->hw_free(substream, cpu_dai); mutex_unlock(&pcm_mutex); return 0; @@ -596,14 +770,15 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_card *card= socdev->card; struct snd_soc_dai_link *machine = rtd->dai; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *cpu_dai = machine->cpu_dai; struct snd_soc_dai *codec_dai = machine->codec_dai; int ret; - if (codec_dai->ops.trigger) { - ret = codec_dai->ops.trigger(substream, cmd); + if (codec_dai->ops->trigger) { + ret = codec_dai->ops->trigger(substream, cmd, codec_dai); if (ret < 0) return ret; } @@ -614,8 +789,8 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) return ret; } - if (cpu_dai->ops.trigger) { - ret = cpu_dai->ops.trigger(substream, cmd); + if (cpu_dai->ops->trigger) { + ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai); if (ret < 0) return ret; } @@ -634,15 +809,22 @@ static struct snd_pcm_ops soc_pcm_ops = { #ifdef CONFIG_PM /* powers down audio subsystem for suspend */ -static int soc_suspend(struct platform_device *pdev, pm_message_t state) +static int soc_suspend(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_machine *machine = socdev->machine; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_card *card = socdev->card; + struct snd_soc_platform *platform = card->platform; struct snd_soc_codec_device *codec_dev = socdev->codec_dev; - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = card->codec; int i; + /* If the initialization of this soc device failed, there is no codec + * associated with it. Just bail out in this case. + */ + if (!codec) + return 0; + /* Due to the resume being scheduled into a workqueue we could * suspend before that's finished - wait for it to complete. */ @@ -654,29 +836,29 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state) snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); /* mute any active DAC's */ - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *dai = machine->dai_link[i].codec_dai; - if (dai->dai_ops.digital_mute && dai->playback.active) - dai->dai_ops.digital_mute(dai, 1); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *dai = card->dai_link[i].codec_dai; + if (dai->ops->digital_mute && dai->playback.active) + dai->ops->digital_mute(dai, 1); } /* suspend all pcms */ - for (i = 0; i < machine->num_links; i++) - snd_pcm_suspend_all(machine->dai_link[i].pcm); + for (i = 0; i < card->num_links; i++) + snd_pcm_suspend_all(card->dai_link[i].pcm); - if (machine->suspend_pre) - machine->suspend_pre(pdev, state); + if (card->suspend_pre) + card->suspend_pre(pdev, PMSG_SUSPEND); - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; - if (cpu_dai->suspend && cpu_dai->type != SND_SOC_DAI_AC97) - cpu_dai->suspend(pdev, cpu_dai); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; + if (cpu_dai->suspend && !cpu_dai->ac97_control) + cpu_dai->suspend(cpu_dai); if (platform->suspend) - platform->suspend(pdev, cpu_dai); + platform->suspend(cpu_dai); } /* close any waiting streams and save state */ - run_delayed_work(&socdev->delayed_work); + run_delayed_work(&card->delayed_work); codec->suspend_bias_level = codec->bias_level; for (i = 0; i < codec->num_dai; i++) { @@ -691,16 +873,16 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state) } if (codec_dev->suspend) - codec_dev->suspend(pdev, state); + codec_dev->suspend(pdev, PMSG_SUSPEND); - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; - if (cpu_dai->suspend && cpu_dai->type == SND_SOC_DAI_AC97) - cpu_dai->suspend(pdev, cpu_dai); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; + if (cpu_dai->suspend && cpu_dai->ac97_control) + cpu_dai->suspend(cpu_dai); } - if (machine->suspend_post) - machine->suspend_post(pdev, state); + if (card->suspend_post) + card->suspend_post(pdev, PMSG_SUSPEND); return 0; } @@ -710,13 +892,13 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state) */ static void soc_resume_deferred(struct work_struct *work) { - struct snd_soc_device *socdev = container_of(work, - struct snd_soc_device, - deferred_resume_work); - struct snd_soc_machine *machine = socdev->machine; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_card *card = container_of(work, + struct snd_soc_card, + deferred_resume_work); + struct snd_soc_device *socdev = card->socdev; + struct snd_soc_platform *platform = card->platform; struct snd_soc_codec_device *codec_dev = socdev->codec_dev; - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = card->codec; struct platform_device *pdev = to_platform_device(socdev->dev); int i; @@ -724,15 +906,15 @@ static void soc_resume_deferred(struct work_struct *work) * so userspace apps are blocked from touching us */ - dev_info(socdev->dev, "starting resume work\n"); + dev_dbg(socdev->dev, "starting resume work\n"); - if (machine->resume_pre) - machine->resume_pre(pdev); + if (card->resume_pre) + card->resume_pre(pdev); - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; - if (cpu_dai->resume && cpu_dai->type == SND_SOC_DAI_AC97) - cpu_dai->resume(pdev, cpu_dai); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; + if (cpu_dai->resume && cpu_dai->ac97_control) + cpu_dai->resume(cpu_dai); } if (codec_dev->resume) @@ -750,64 +932,152 @@ static void soc_resume_deferred(struct work_struct *work) } /* unmute any active DACs */ - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *dai = machine->dai_link[i].codec_dai; - if (dai->dai_ops.digital_mute && dai->playback.active) - dai->dai_ops.digital_mute(dai, 0); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *dai = card->dai_link[i].codec_dai; + if (dai->ops->digital_mute && dai->playback.active) + dai->ops->digital_mute(dai, 0); } - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; - if (cpu_dai->resume && cpu_dai->type != SND_SOC_DAI_AC97) - cpu_dai->resume(pdev, cpu_dai); + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; + if (cpu_dai->resume && !cpu_dai->ac97_control) + cpu_dai->resume(cpu_dai); if (platform->resume) - platform->resume(pdev, cpu_dai); + platform->resume(cpu_dai); } - if (machine->resume_post) - machine->resume_post(pdev); + if (card->resume_post) + card->resume_post(pdev); - dev_info(socdev->dev, "resume work completed\n"); + dev_dbg(socdev->dev, "resume work completed\n"); /* userspace can access us now we are back as we were before */ snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); } /* powers up audio subsystem after a suspend */ -static int soc_resume(struct platform_device *pdev) +static int soc_resume(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_card *card = socdev->card; + struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai; - dev_info(socdev->dev, "scheduling resume work\n"); + /* If the initialization of this soc device failed, there is no codec + * associated with it. Just bail out in this case. + */ + if (!card->codec) + return 0; - if (!schedule_work(&socdev->deferred_resume_work)) - dev_err(socdev->dev, "work item may be lost\n"); + /* AC97 devices might have other drivers hanging off them so + * need to resume immediately. Other drivers don't have that + * problem and may take a substantial amount of time to resume + * due to I/O costs and anti-pop so handle them out of line. + */ + if (cpu_dai->ac97_control) { + dev_dbg(socdev->dev, "Resuming AC97 immediately\n"); + soc_resume_deferred(&card->deferred_resume_work); + } else { + dev_dbg(socdev->dev, "Scheduling resume work\n"); + if (!schedule_work(&card->deferred_resume_work)) + dev_err(socdev->dev, "resume work item may be lost\n"); + } return 0; } - #else #define soc_suspend NULL #define soc_resume NULL #endif -/* probes a new socdev */ -static int soc_probe(struct platform_device *pdev) +static struct snd_soc_dai_ops null_dai_ops = { +}; + +static void snd_soc_instantiate_card(struct snd_soc_card *card) { - int ret = 0, i; - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_machine *machine = socdev->machine; - struct snd_soc_platform *platform = socdev->platform; - struct snd_soc_codec_device *codec_dev = socdev->codec_dev; + struct platform_device *pdev = container_of(card->dev, + struct platform_device, + dev); + struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; + struct snd_soc_codec *codec; + struct snd_soc_platform *platform; + struct snd_soc_dai *dai; + int i, found, ret, ac97; + + if (card->instantiated) + return; + + found = 0; + list_for_each_entry(platform, &platform_list, list) + if (card->platform == platform) { + found = 1; + break; + } + if (!found) { + dev_dbg(card->dev, "Platform %s not registered\n", + card->platform->name); + return; + } + + ac97 = 0; + for (i = 0; i < card->num_links; i++) { + found = 0; + list_for_each_entry(dai, &dai_list, list) + if (card->dai_link[i].cpu_dai == dai) { + found = 1; + break; + } + if (!found) { + dev_dbg(card->dev, "DAI %s not registered\n", + card->dai_link[i].cpu_dai->name); + return; + } + + if (card->dai_link[i].cpu_dai->ac97_control) + ac97 = 1; + } - if (machine->probe) { - ret = machine->probe(pdev); + for (i = 0; i < card->num_links; i++) { + if (!card->dai_link[i].codec_dai->ops) + card->dai_link[i].codec_dai->ops = &null_dai_ops; + } + + /* If we have AC97 in the system then don't wait for the + * codec. This will need revisiting if we have to handle + * systems with mixed AC97 and non-AC97 parts. Only check for + * DAIs currently; we can't do this per link since some AC97 + * codecs have non-AC97 DAIs. + */ + if (!ac97) + for (i = 0; i < card->num_links; i++) { + found = 0; + list_for_each_entry(dai, &dai_list, list) + if (card->dai_link[i].codec_dai == dai) { + found = 1; + break; + } + if (!found) { + dev_dbg(card->dev, "DAI %s not registered\n", + card->dai_link[i].codec_dai->name); + return; + } + } + + /* Note that we do not current check for codec components */ + + dev_dbg(card->dev, "All components present, instantiating\n"); + + /* Found everything, bring it up */ + card->pmdown_time = pmdown_time; + + if (card->probe) { + ret = card->probe(pdev); if (ret < 0) - return ret; + return; } - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; if (cpu_dai->probe) { ret = cpu_dai->probe(pdev, cpu_dai); if (ret < 0) @@ -820,6 +1090,7 @@ static int soc_probe(struct platform_device *pdev) if (ret < 0) goto cpu_dai_err; } + codec = card->codec; if (platform->probe) { ret = platform->probe(pdev); @@ -828,13 +1099,78 @@ static int soc_probe(struct platform_device *pdev) } /* DAPM stream work */ - INIT_DELAYED_WORK(&socdev->delayed_work, close_delayed_work); + INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); #ifdef CONFIG_PM /* deferred resume work */ - INIT_WORK(&socdev->deferred_resume_work, soc_resume_deferred); + INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); #endif - return 0; + for (i = 0; i < card->num_links; i++) { + if (card->dai_link[i].init) { + ret = card->dai_link[i].init(codec); + if (ret < 0) { + printk(KERN_ERR "asoc: failed to init %s\n", + card->dai_link[i].stream_name); + continue; + } + } + if (card->dai_link[i].codec_dai->ac97_control) + ac97 = 1; + } + + snprintf(codec->card->shortname, sizeof(codec->card->shortname), + "%s", card->name); + snprintf(codec->card->longname, sizeof(codec->card->longname), + "%s (%s)", card->name, codec->name); + + /* Make sure all DAPM widgets are instantiated */ + snd_soc_dapm_new_widgets(codec); + + ret = snd_card_register(codec->card); + if (ret < 0) { + printk(KERN_ERR "asoc: failed to register soundcard for %s\n", + codec->name); + goto card_err; + } + + mutex_lock(&codec->mutex); +#ifdef CONFIG_SND_SOC_AC97_BUS + /* Only instantiate AC97 if not already done by the adaptor + * for the generic AC97 subsystem. + */ + if (ac97 && strcmp(codec->name, "AC97") != 0) { + ret = soc_ac97_dev_register(codec); + if (ret < 0) { + printk(KERN_ERR "asoc: AC97 device register failed\n"); + snd_card_free(codec->card); + mutex_unlock(&codec->mutex); + goto card_err; + } + } +#endif + + ret = snd_soc_dapm_sys_add(card->socdev->dev); + if (ret < 0) + printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); + + ret = device_create_file(card->socdev->dev, &dev_attr_pmdown_time); + if (ret < 0) + printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); + + ret = device_create_file(card->socdev->dev, &dev_attr_codec_reg); + if (ret < 0) + printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); + + soc_init_codec_debugfs(codec); + mutex_unlock(&codec->mutex); + + card->instantiated = 1; + + return; + +card_err: + if (platform->remove) + platform->remove(pdev); platform_err: if (codec_dev->remove) @@ -842,15 +1178,45 @@ platform_err: cpu_dai_err: for (i--; i >= 0; i--) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; if (cpu_dai->remove) cpu_dai->remove(pdev, cpu_dai); } - if (machine->remove) - machine->remove(pdev); + if (card->remove) + card->remove(pdev); +} - return ret; +/* + * Attempt to initialise any uninitalised cards. Must be called with + * client_mutex. + */ +static void snd_soc_instantiate_cards(void) +{ + struct snd_soc_card *card; + list_for_each_entry(card, &card_list, list) + snd_soc_instantiate_card(card); +} + +/* probes a new socdev */ +static int soc_probe(struct platform_device *pdev) +{ + int ret = 0; + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_card *card = socdev->card; + + /* Bodge while we push things out of socdev */ + card->socdev = socdev; + + /* Bodge while we unpick instantiation */ + card->dev = &pdev->dev; + ret = snd_soc_register_card(card); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to register card\n"); + return ret; + } + + return 0; } /* removes a socdev */ @@ -858,11 +1224,14 @@ static int soc_remove(struct platform_device *pdev) { int i; struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_machine *machine = socdev->machine; - struct snd_soc_platform *platform = socdev->platform; + struct snd_soc_card *card = socdev->card; + struct snd_soc_platform *platform = card->platform; struct snd_soc_codec_device *codec_dev = socdev->codec_dev; - run_delayed_work(&socdev->delayed_work); + if (!card->instantiated) + return 0; + + run_delayed_work(&card->delayed_work); if (platform->remove) platform->remove(pdev); @@ -870,35 +1239,62 @@ static int soc_remove(struct platform_device *pdev) if (codec_dev->remove) codec_dev->remove(pdev); - for (i = 0; i < machine->num_links; i++) { - struct snd_soc_dai *cpu_dai = machine->dai_link[i].cpu_dai; + for (i = 0; i < card->num_links; i++) { + struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; if (cpu_dai->remove) cpu_dai->remove(pdev, cpu_dai); } - if (machine->remove) - machine->remove(pdev); + if (card->remove) + card->remove(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static int soc_poweroff(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_card *card = socdev->card; + + if (!card->instantiated) + return 0; + + /* Flush out pmdown_time work - we actually do want to run it + * now, we're shutting down so no imminent restart. */ + run_delayed_work(&card->delayed_work); + + snd_soc_dapm_shutdown(socdev); return 0; } +static const struct dev_pm_ops soc_pm_ops = { + .suspend = soc_suspend, + .resume = soc_resume, + .poweroff = soc_poweroff, +}; + /* ASoC platform driver */ static struct platform_driver soc_driver = { .driver = { .name = "soc-audio", .owner = THIS_MODULE, + .pm = &soc_pm_ops, }, .probe = soc_probe, .remove = soc_remove, - .suspend = soc_suspend, - .resume = soc_resume, }; /* create a new pcm */ static int soc_new_pcm(struct snd_soc_device *socdev, struct snd_soc_dai_link *dai_link, int num) { - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_card *card = socdev->card; + struct snd_soc_codec *codec = card->codec; + struct snd_soc_platform *platform = card->platform; struct snd_soc_dai *codec_dai = dai_link->codec_dai; struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; struct snd_soc_pcm_runtime *rtd; @@ -912,11 +1308,11 @@ static int soc_new_pcm(struct snd_soc_device *socdev, rtd->dai = dai_link; rtd->socdev = socdev; - codec_dai->codec = socdev->codec; + codec_dai->codec = card->codec; /* check client and interface hw capabilities */ - sprintf(new_name, "%s %s-%s-%d", dai_link->stream_name, codec_dai->name, - get_dai_name(cpu_dai->type), num); + snprintf(new_name, sizeof(new_name), "%s %s-%d", + dai_link->stream_name, codec_dai->name, num); if (codec_dai->playback.channels_min) playback = 1; @@ -934,13 +1330,13 @@ static int soc_new_pcm(struct snd_soc_device *socdev, dai_link->pcm = pcm; pcm->private_data = rtd; - soc_pcm_ops.mmap = socdev->platform->pcm_ops->mmap; - soc_pcm_ops.pointer = socdev->platform->pcm_ops->pointer; - soc_pcm_ops.ioctl = socdev->platform->pcm_ops->ioctl; - soc_pcm_ops.copy = socdev->platform->pcm_ops->copy; - soc_pcm_ops.silence = socdev->platform->pcm_ops->silence; - soc_pcm_ops.ack = socdev->platform->pcm_ops->ack; - soc_pcm_ops.page = socdev->platform->pcm_ops->page; + soc_pcm_ops.mmap = platform->pcm_ops->mmap; + soc_pcm_ops.pointer = platform->pcm_ops->pointer; + soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; + soc_pcm_ops.copy = platform->pcm_ops->copy; + soc_pcm_ops.silence = platform->pcm_ops->silence; + soc_pcm_ops.ack = platform->pcm_ops->ack; + soc_pcm_ops.page = platform->pcm_ops->page; if (playback) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); @@ -948,61 +1344,35 @@ static int soc_new_pcm(struct snd_soc_device *socdev, if (capture) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); - ret = socdev->platform->pcm_new(codec->card, codec_dai, pcm); + ret = platform->pcm_new(codec->card, codec_dai, pcm); if (ret < 0) { printk(KERN_ERR "asoc: platform pcm constructor failed\n"); kfree(rtd); return ret; } - pcm->private_free = socdev->platform->pcm_free; + pcm->private_free = platform->pcm_free; printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, cpu_dai->name); return ret; } -/* codec register dump */ -static ssize_t codec_reg_show(struct device *dev, - struct device_attribute *attr, char *buf) +/** + * snd_soc_codec_volatile_register: Report if a register is volatile. + * + * @codec: CODEC to query. + * @reg: Register to query. + * + * Boolean function indiciating if a CODEC register is volatile. + */ +int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) { - struct snd_soc_device *devdata = dev_get_drvdata(dev); - struct snd_soc_codec *codec = devdata->codec; - int i, step = 1, count = 0; - - if (!codec->reg_cache_size) + if (codec->volatile_register) + return codec->volatile_register(reg); + else return 0; - - if (codec->reg_cache_step) - step = codec->reg_cache_step; - - count += sprintf(buf, "%s registers\n", codec->name); - for (i = 0; i < codec->reg_cache_size; i += step) { - count += sprintf(buf + count, "%2x: ", i); - if (count >= PAGE_SIZE - 1) - break; - - if (codec->display_register) - count += codec->display_register(codec, buf + count, - PAGE_SIZE - count, i); - else - count += snprintf(buf + count, PAGE_SIZE - count, - "%4x", codec->read(codec, i)); - - if (count >= PAGE_SIZE - 1) - break; - - count += snprintf(buf + count, PAGE_SIZE - count, "\n"); - if (count >= PAGE_SIZE - 1) - break; - } - - /* Truncate count; min() would cause a warning */ - if (count >= PAGE_SIZE) - count = PAGE_SIZE - 1; - - return count; } -static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); +EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); /** * snd_soc_new_ac97_codec - initailise AC97 device @@ -1033,6 +1403,7 @@ int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, codec->ac97->bus->ops = ops; codec->ac97->num = num; + codec->dev = &codec->ac97->dev; mutex_unlock(&codec->mutex); return 0; } @@ -1066,24 +1437,47 @@ EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); * Returns 1 for change else 0. */ int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned short mask, unsigned short value) + unsigned int mask, unsigned int value) { int change; - unsigned short old, new; + unsigned int old, new; - mutex_lock(&io_mutex); old = snd_soc_read(codec, reg); new = (old & ~mask) | value; change = old != new; if (change) snd_soc_write(codec, reg, new); - mutex_unlock(&io_mutex); return change; } EXPORT_SYMBOL_GPL(snd_soc_update_bits); /** + * snd_soc_update_bits_locked - update codec register bits + * @codec: audio codec + * @reg: codec register + * @mask: register mask + * @value: new value + * + * Writes new register value, and takes the codec mutex. + * + * Returns 1 for change else 0. + */ +int snd_soc_update_bits_locked(struct snd_soc_codec *codec, + unsigned short reg, unsigned int mask, + unsigned int value) +{ + int change; + + mutex_lock(&codec->mutex); + change = snd_soc_update_bits(codec, reg, mask, value); + mutex_unlock(&codec->mutex); + + return change; +} +EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); + +/** * snd_soc_test_bits - test register for change * @codec: audio codec * @reg: codec register @@ -1096,16 +1490,14 @@ EXPORT_SYMBOL_GPL(snd_soc_update_bits); * Returns 1 for change else 0. */ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned short mask, unsigned short value) + unsigned int mask, unsigned int value) { int change; - unsigned short old, new; + unsigned int old, new; - mutex_lock(&io_mutex); old = snd_soc_read(codec, reg); new = (old & ~mask) | value; change = old != new; - mutex_unlock(&io_mutex); return change; } @@ -1114,6 +1506,8 @@ EXPORT_SYMBOL_GPL(snd_soc_test_bits); /** * snd_soc_new_pcms - create new sound card and pcms * @socdev: the SoC audio device + * @idx: ALSA card index + * @xid: card identification * * Create a new sound card based upon the codec and interface pcms. * @@ -1121,108 +1515,45 @@ EXPORT_SYMBOL_GPL(snd_soc_test_bits); */ int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) { - struct snd_soc_codec *codec = socdev->codec; - struct snd_soc_machine *machine = socdev->machine; - int ret = 0, i; + struct snd_soc_card *card = socdev->card; + struct snd_soc_codec *codec = card->codec; + int ret, i; mutex_lock(&codec->mutex); /* register a sound card */ - codec->card = snd_card_new(idx, xid, codec->owner, 0); - if (!codec->card) { + ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card); + if (ret < 0) { printk(KERN_ERR "asoc: can't create sound card for codec %s\n", codec->name); mutex_unlock(&codec->mutex); - return -ENODEV; + return ret; } + codec->socdev = socdev; codec->card->dev = socdev->dev; codec->card->private_data = codec; strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); /* create the pcms */ - for (i = 0; i < machine->num_links; i++) { - ret = soc_new_pcm(socdev, &machine->dai_link[i], i); + for (i = 0; i < card->num_links; i++) { + ret = soc_new_pcm(socdev, &card->dai_link[i], i); if (ret < 0) { printk(KERN_ERR "asoc: can't create pcm %s\n", - machine->dai_link[i].stream_name); + card->dai_link[i].stream_name); mutex_unlock(&codec->mutex); return ret; } - } - - mutex_unlock(&codec->mutex); - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_new_pcms); - -/** - * snd_soc_register_card - register sound card - * @socdev: the SoC audio device - * - * Register a SoC sound card. Also registers an AC97 device if the - * codec is AC97 for ad hoc devices. - * - * Returns 0 for success, else error. - */ -int snd_soc_register_card(struct snd_soc_device *socdev) -{ - struct snd_soc_codec *codec = socdev->codec; - struct snd_soc_machine *machine = socdev->machine; - int ret = 0, i, ac97 = 0, err = 0; - - for (i = 0; i < machine->num_links; i++) { - if (socdev->machine->dai_link[i].init) { - err = socdev->machine->dai_link[i].init(codec); - if (err < 0) { - printk(KERN_ERR "asoc: failed to init %s\n", - socdev->machine->dai_link[i].stream_name); - continue; - } - } - if (socdev->machine->dai_link[i].codec_dai->type == - SND_SOC_DAI_AC97_BUS) - ac97 = 1; - } - snprintf(codec->card->shortname, sizeof(codec->card->shortname), - "%s", machine->name); - snprintf(codec->card->longname, sizeof(codec->card->longname), - "%s (%s)", machine->name, codec->name); - - ret = snd_card_register(codec->card); - if (ret < 0) { - printk(KERN_ERR "asoc: failed to register soundcard for %s\n", - codec->name); - goto out; - } - - mutex_lock(&codec->mutex); -#ifdef CONFIG_SND_SOC_AC97_BUS - if (ac97) { - ret = soc_ac97_dev_register(codec); - if (ret < 0) { - printk(KERN_ERR "asoc: AC97 device register failed\n"); - snd_card_free(codec->card); - mutex_unlock(&codec->mutex); - goto out; + if (card->dai_link[i].codec_dai->ac97_control) { + snd_ac97_dev_add_pdata(codec->ac97, + card->dai_link[i].cpu_dai->ac97_pdata); } } -#endif - - err = snd_soc_dapm_sys_add(socdev->dev); - if (err < 0) - printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); - - err = device_create_file(socdev->dev, &dev_attr_codec_reg); - if (err < 0) - printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); mutex_unlock(&codec->mutex); - -out: return ret; } -EXPORT_SYMBOL_GPL(snd_soc_register_card); +EXPORT_SYMBOL_GPL(snd_soc_new_pcms); /** * snd_soc_free_pcms - free sound card and pcms @@ -1233,17 +1564,19 @@ EXPORT_SYMBOL_GPL(snd_soc_register_card); */ void snd_soc_free_pcms(struct snd_soc_device *socdev) { - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = socdev->card->codec; #ifdef CONFIG_SND_SOC_AC97_BUS struct snd_soc_dai *codec_dai; int i; #endif mutex_lock(&codec->mutex); + soc_cleanup_codec_debugfs(codec); #ifdef CONFIG_SND_SOC_AC97_BUS for (i = 0; i < codec->num_dai; i++) { codec_dai = &codec->dai[i]; - if (codec_dai->type == SND_SOC_DAI_AC97_BUS && codec->ac97) { + if (codec_dai->ac97_control && codec->ac97 && + strcmp(codec->name, "AC97") != 0) { soc_ac97_dev_unregister(codec); goto free_card; } @@ -1285,7 +1618,7 @@ EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); * snd_soc_cnew - create new control * @_template: control template * @data: control private data - * @lnng_name: control long name + * @long_name: control long name * * Create a new mixer control from a template control. * @@ -1306,6 +1639,37 @@ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, EXPORT_SYMBOL_GPL(snd_soc_cnew); /** + * snd_soc_add_controls - add an array of controls to a codec. + * Convienience function to add a list of controls. Many codecs were + * duplicating this code. + * + * @codec: codec to add controls to + * @controls: array of controls to add + * @num_controls: number of elements in the array + * + * Return 0 for success, else error. + */ +int snd_soc_add_controls(struct snd_soc_codec *codec, + const struct snd_kcontrol_new *controls, int num_controls) +{ + struct snd_card *card = codec->card; + int err, i; + + for (i = 0; i < num_controls; i++) { + const struct snd_kcontrol_new *control = &controls[i]; + err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); + if (err < 0) { + dev_err(codec->dev, "%s: Failed to add %s\n", + codec->name, control->name); + return err; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_add_controls); + +/** * snd_soc_info_enum_double - enumerated double mixer info callback * @kcontrol: mixer control * @uinfo: control element information @@ -1335,7 +1699,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); /** * snd_soc_get_enum_double - enumerated double mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a double enumerated mixer. * @@ -1346,7 +1710,7 @@ int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned short val, bitmask; + unsigned int val, bitmask; for (bitmask = 1; bitmask < e->max; bitmask <<= 1) ; @@ -1364,7 +1728,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); /** * snd_soc_put_enum_double - enumerated double mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a double enumerated mixer. * @@ -1375,8 +1739,8 @@ int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned short val; - unsigned short mask, bitmask; + unsigned int val; + unsigned int mask, bitmask; for (bitmask = 1; bitmask < e->max; bitmask <<= 1) ; @@ -1391,11 +1755,85 @@ int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, mask |= (bitmask - 1) << e->shift_r; } - return snd_soc_update_bits(codec, e->reg, mask, val); + return snd_soc_update_bits_locked(codec, e->reg, mask, val); } EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); /** + * snd_soc_get_value_enum_double - semi enumerated double mixer get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a double semi enumerated mixer. + * + * Semi enumerated mixer: the enumerated items are referred as values. Can be + * used for handling bitfield coded enumeration for example. + * + * Returns 0 for success. + */ +int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int reg_val, val, mux; + + reg_val = snd_soc_read(codec, e->reg); + val = (reg_val >> e->shift_l) & e->mask; + for (mux = 0; mux < e->max; mux++) { + if (val == e->values[mux]) + break; + } + ucontrol->value.enumerated.item[0] = mux; + if (e->shift_l != e->shift_r) { + val = (reg_val >> e->shift_r) & e->mask; + for (mux = 0; mux < e->max; mux++) { + if (val == e->values[mux]) + break; + } + ucontrol->value.enumerated.item[1] = mux; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); + +/** + * snd_soc_put_value_enum_double - semi enumerated double mixer put callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value of a double semi enumerated mixer. + * + * Semi enumerated mixer: the enumerated items are referred as values. Can be + * used for handling bitfield coded enumeration for example. + * + * Returns 0 for success. + */ +int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int val; + unsigned int mask; + + if (ucontrol->value.enumerated.item[0] > e->max - 1) + return -EINVAL; + val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; + mask = e->mask << e->shift_l; + if (e->shift_l != e->shift_r) { + if (ucontrol->value.enumerated.item[1] > e->max - 1) + return -EINVAL; + val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; + mask |= e->mask << e->shift_r; + } + + return snd_soc_update_bits_locked(codec, e->reg, mask, val); +} +EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); + +/** * snd_soc_info_enum_ext - external enumerated single mixer info callback * @kcontrol: mixer control * @uinfo: control element information @@ -1436,7 +1874,7 @@ int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, { int max = kcontrol->private_value; - if (max == 1) + if (max == 1 && !strstr(kcontrol->id.name, " Volume")) uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; else uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; @@ -1463,10 +1901,10 @@ int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int max = mc->max; - unsigned int shift = mc->min; + unsigned int shift = mc->shift; unsigned int rshift = mc->rshift; - if (max == 1) + if (max == 1 && !strstr(kcontrol->id.name, " Volume")) uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; else uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; @@ -1481,7 +1919,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw); /** * snd_soc_get_volsw - single mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a single mixer control. * @@ -1520,7 +1958,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw); /** * snd_soc_put_volsw - single mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a single mixer control. * @@ -1538,7 +1976,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, int max = mc->max; unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; - unsigned short val, val2, val_mask; + unsigned int val, val2, val_mask; val = (ucontrol->value.integer.value[0] & mask); if (invert) @@ -1552,7 +1990,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, val_mask |= mask << rshift; val |= val2 << rshift; } - return snd_soc_update_bits(codec, reg, val_mask, val); + return snd_soc_update_bits_locked(codec, reg, val_mask, val); } EXPORT_SYMBOL_GPL(snd_soc_put_volsw); @@ -1573,7 +2011,7 @@ int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, (struct soc_mixer_control *)kcontrol->private_value; int max = mc->max; - if (max == 1) + if (max == 1 && !strstr(kcontrol->id.name, " Volume")) uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; else uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; @@ -1588,7 +2026,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); /** * snd_soc_get_volsw_2r - double mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a double mixer control that spans 2 registers. * @@ -1604,7 +2042,7 @@ int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, unsigned int reg2 = mc->rreg; unsigned int shift = mc->shift; int max = mc->max; - unsigned int mask = (1<invert; ucontrol->value.integer.value[0] = @@ -1625,7 +2063,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); /** * snd_soc_put_volsw_2r - double mixer set callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a double mixer control that spans 2 registers. * @@ -1644,7 +2082,7 @@ int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; int err; - unsigned short val, val2, val_mask; + unsigned int val, val2, val_mask; val_mask = mask << shift; val = (ucontrol->value.integer.value[0] & mask); @@ -1658,11 +2096,11 @@ int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, val = val << shift; val2 = val2 << shift; - err = snd_soc_update_bits(codec, reg, val_mask, val); + err = snd_soc_update_bits_locked(codec, reg, val_mask, val); if (err < 0) return err; - err = snd_soc_update_bits(codec, reg2, val_mask, val2); + err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); return err; } EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); @@ -1695,7 +2133,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); /** * snd_soc_get_volsw_s8 - signed mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a signed mixer control. * @@ -1722,7 +2160,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); /** * snd_soc_put_volsw_sgn - signed mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a signed mixer control. * @@ -1736,12 +2174,12 @@ int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; int min = mc->min; - unsigned short val; + unsigned int val; val = (ucontrol->value.integer.value[0]+min) & 0xff; val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; - return snd_soc_update_bits(codec, reg, 0xffff, val); + return snd_soc_update_bits_locked(codec, reg, 0xffff, val); } EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); @@ -1757,8 +2195,8 @@ EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { - if (dai->dai_ops.set_sysclk) - return dai->dai_ops.set_sysclk(dai, clk_id, freq, dir); + if (dai->ops && dai->ops->set_sysclk) + return dai->ops->set_sysclk(dai, clk_id, freq, dir); else return -EINVAL; } @@ -1767,7 +2205,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); /** * snd_soc_dai_set_clkdiv - configure DAI clock dividers. * @dai: DAI - * @clk_id: DAI specific clock divider ID + * @div_id: DAI specific clock divider ID * @div: new clock divisor. * * Configures the clock dividers. This is used to derive the best DAI bit and @@ -1777,8 +2215,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div) { - if (dai->dai_ops.set_clkdiv) - return dai->dai_ops.set_clkdiv(dai, div_id, div); + if (dai->ops && dai->ops->set_clkdiv) + return dai->ops->set_clkdiv(dai, div_id, div); else return -EINVAL; } @@ -1788,16 +2226,18 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); * snd_soc_dai_set_pll - configure DAI PLL. * @dai: DAI * @pll_id: DAI specific PLL ID + * @source: DAI specific source for the PLL * @freq_in: PLL input clock frequency in Hz * @freq_out: requested PLL output clock frequency in Hz * * Configures and enables PLL to generate output clock based on input clock. */ -int snd_soc_dai_set_pll(struct snd_soc_dai *dai, - int pll_id, unsigned int freq_in, unsigned int freq_out) +int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out) { - if (dai->dai_ops.set_pll) - return dai->dai_ops.set_pll(dai, pll_id, freq_in, freq_out); + if (dai->ops && dai->ops->set_pll) + return dai->ops->set_pll(dai, pll_id, source, + freq_in, freq_out); else return -EINVAL; } @@ -1806,15 +2246,14 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); /** * snd_soc_dai_set_fmt - configure DAI hardware audio format. * @dai: DAI - * @clk_id: DAI specific clock ID * @fmt: SND_SOC_DAIFMT_ format value. * * Configures the DAI hardware format and clocking. */ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { - if (dai->dai_ops.set_fmt) - return dai->dai_ops.set_fmt(dai, fmt); + if (dai->ops && dai->ops->set_fmt) + return dai->ops->set_fmt(dai, fmt); else return -EINVAL; } @@ -1823,23 +2262,50 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); /** * snd_soc_dai_set_tdm_slot - configure DAI TDM. * @dai: DAI - * @mask: DAI specific mask representing used slots. + * @tx_mask: bitmask representing active TX slots. + * @rx_mask: bitmask representing active RX slots. * @slots: Number of slots in use. + * @slot_width: Width in bits for each slot. * * Configures a DAI for TDM operation. Both mask and slots are codec and DAI * specific. */ int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, - unsigned int mask, int slots) + unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { - if (dai->dai_ops.set_sysclk) - return dai->dai_ops.set_tdm_slot(dai, mask, slots); + if (dai->ops && dai->ops->set_tdm_slot) + return dai->ops->set_tdm_slot(dai, tx_mask, rx_mask, + slots, slot_width); else return -EINVAL; } EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); /** + * snd_soc_dai_set_channel_map - configure DAI audio channel map + * @dai: DAI + * @tx_num: how many TX channels + * @tx_slot: pointer to an array which imply the TX slot number channel + * 0~num-1 uses + * @rx_num: how many RX channels + * @rx_slot: pointer to an array which imply the RX slot number channel + * 0~num-1 uses + * + * configure the relationship between channel number and TDM slot number. + */ +int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, + unsigned int tx_num, unsigned int *tx_slot, + unsigned int rx_num, unsigned int *rx_slot) +{ + if (dai->ops && dai->ops->set_channel_map) + return dai->ops->set_channel_map(dai, tx_num, tx_slot, + rx_num, rx_slot); + else + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); + +/** * snd_soc_dai_set_tristate - configure DAI system or master clock. * @dai: DAI * @tristate: tristate enable @@ -1848,8 +2314,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); */ int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) { - if (dai->dai_ops.set_sysclk) - return dai->dai_ops.set_tristate(dai, tristate); + if (dai->ops && dai->ops->set_tristate) + return dai->ops->set_tristate(dai, tristate); else return -EINVAL; } @@ -1864,21 +2330,285 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); */ int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) { - if (dai->dai_ops.digital_mute) - return dai->dai_ops.digital_mute(dai, mute); + if (dai->ops && dai->ops->digital_mute) + return dai->ops->digital_mute(dai, mute); else return -EINVAL; } EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); -static int __devinit snd_soc_init(void) +/** + * snd_soc_register_card - Register a card with the ASoC core + * + * @card: Card to register + * + * Note that currently this is an internal only function: it will be + * exposed to machine drivers after further backporting of ASoC v2 + * registration APIs. + */ +static int snd_soc_register_card(struct snd_soc_card *card) +{ + if (!card->name || !card->dev) + return -EINVAL; + + INIT_LIST_HEAD(&card->list); + card->instantiated = 0; + + mutex_lock(&client_mutex); + list_add(&card->list, &card_list); + snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); + + dev_dbg(card->dev, "Registered card '%s'\n", card->name); + + return 0; +} + +/** + * snd_soc_unregister_card - Unregister a card with the ASoC core + * + * @card: Card to unregister + * + * Note that currently this is an internal only function: it will be + * exposed to machine drivers after further backporting of ASoC v2 + * registration APIs. + */ +static int snd_soc_unregister_card(struct snd_soc_card *card) +{ + mutex_lock(&client_mutex); + list_del(&card->list); + mutex_unlock(&client_mutex); + + dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); + + return 0; +} + +/** + * snd_soc_register_dai - Register a DAI with the ASoC core + * + * @dai: DAI to register + */ +int snd_soc_register_dai(struct snd_soc_dai *dai) +{ + if (!dai->name) + return -EINVAL; + + /* The device should become mandatory over time */ + if (!dai->dev) + printk(KERN_WARNING "No device for DAI %s\n", dai->name); + + if (!dai->ops) + dai->ops = &null_dai_ops; + + INIT_LIST_HEAD(&dai->list); + + mutex_lock(&client_mutex); + list_add(&dai->list, &dai_list); + snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); + + pr_debug("Registered DAI '%s'\n", dai->name); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_register_dai); + +/** + * snd_soc_unregister_dai - Unregister a DAI from the ASoC core + * + * @dai: DAI to unregister + */ +void snd_soc_unregister_dai(struct snd_soc_dai *dai) +{ + mutex_lock(&client_mutex); + list_del(&dai->list); + mutex_unlock(&client_mutex); + + pr_debug("Unregistered DAI '%s'\n", dai->name); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); + +/** + * snd_soc_register_dais - Register multiple DAIs with the ASoC core + * + * @dai: Array of DAIs to register + * @count: Number of DAIs + */ +int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) +{ + int i, ret; + + for (i = 0; i < count; i++) { + ret = snd_soc_register_dai(&dai[i]); + if (ret != 0) + goto err; + } + + return 0; + +err: + for (i--; i >= 0; i--) + snd_soc_unregister_dai(&dai[i]); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_register_dais); + +/** + * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core + * + * @dai: Array of DAIs to unregister + * @count: Number of DAIs + */ +void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) { - printk(KERN_INFO "ASoC version %s\n", SND_SOC_VERSION); + int i; + + for (i = 0; i < count; i++) + snd_soc_unregister_dai(&dai[i]); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); + +/** + * snd_soc_register_platform - Register a platform with the ASoC core + * + * @platform: platform to register + */ +int snd_soc_register_platform(struct snd_soc_platform *platform) +{ + if (!platform->name) + return -EINVAL; + + INIT_LIST_HEAD(&platform->list); + + mutex_lock(&client_mutex); + list_add(&platform->list, &platform_list); + snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); + + pr_debug("Registered platform '%s'\n", platform->name); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_register_platform); + +/** + * snd_soc_unregister_platform - Unregister a platform from the ASoC core + * + * @platform: platform to unregister + */ +void snd_soc_unregister_platform(struct snd_soc_platform *platform) +{ + mutex_lock(&client_mutex); + list_del(&platform->list); + mutex_unlock(&client_mutex); + + pr_debug("Unregistered platform '%s'\n", platform->name); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); + +static u64 codec_format_map[] = { + SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, + SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, + SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, + SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, + SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, + SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, + SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, + SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, + SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, + SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE + | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, +}; + +/* Fix up the DAI formats for endianness: codecs don't actually see + * the endianness of the data but we're using the CPU format + * definitions which do need to include endianness so we ensure that + * codec DAIs always have both big and little endian variants set. + */ +static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) + if (stream->formats & codec_format_map[i]) + stream->formats |= codec_format_map[i]; +} + +/** + * snd_soc_register_codec - Register a codec with the ASoC core + * + * @codec: codec to register + */ +int snd_soc_register_codec(struct snd_soc_codec *codec) +{ + int i; + + if (!codec->name) + return -EINVAL; + + /* The device should become mandatory over time */ + if (!codec->dev) + printk(KERN_WARNING "No device for codec %s\n", codec->name); + + INIT_LIST_HEAD(&codec->list); + + for (i = 0; i < codec->num_dai; i++) { + fixup_codec_formats(&codec->dai[i].playback); + fixup_codec_formats(&codec->dai[i].capture); + } + + mutex_lock(&client_mutex); + list_add(&codec->list, &codec_list); + snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); + + pr_debug("Registered codec '%s'\n", codec->name); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_register_codec); + +/** + * snd_soc_unregister_codec - Unregister a codec from the ASoC core + * + * @codec: codec to unregister + */ +void snd_soc_unregister_codec(struct snd_soc_codec *codec) +{ + mutex_lock(&client_mutex); + list_del(&codec->list); + mutex_unlock(&client_mutex); + + pr_debug("Unregistered codec '%s'\n", codec->name); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); + +static int __init snd_soc_init(void) +{ +#ifdef CONFIG_DEBUG_FS + debugfs_root = debugfs_create_dir("asoc", NULL); + if (IS_ERR(debugfs_root) || !debugfs_root) { + printk(KERN_WARNING + "ASoC: Failed to create debugfs directory\n"); + debugfs_root = NULL; + } +#endif + return platform_driver_register(&soc_driver); } -static void snd_soc_exit(void) +static void __exit snd_soc_exit(void) { +#ifdef CONFIG_DEBUG_FS + debugfs_remove_recursive(debugfs_root); +#endif platform_driver_unregister(&soc_driver); } @@ -1886,7 +2616,7 @@ module_init(snd_soc_init); module_exit(snd_soc_exit); /* Module information */ -MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com"); +MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); MODULE_DESCRIPTION("ALSA SoC Core"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:soc-audio");