diff options
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r-- | sound/soc/soc-dapm.c | 189 |
1 files changed, 88 insertions, 101 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 81c4052..8564717 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -322,45 +322,6 @@ static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, return -ENODEV; } -/* update dapm codec register bits */ -static int dapm_update_bits(struct snd_soc_dapm_widget *widget) -{ - int change, power; - unsigned int old, new; - struct snd_soc_codec *codec = widget->codec; - struct snd_soc_dapm_context *dapm = widget->dapm; - struct snd_soc_card *card = dapm->card; - - /* check for valid widgets */ - if (widget->reg < 0 || widget->id == snd_soc_dapm_input || - widget->id == snd_soc_dapm_output || - widget->id == snd_soc_dapm_hp || - widget->id == snd_soc_dapm_mic || - widget->id == snd_soc_dapm_line || - widget->id == snd_soc_dapm_spk) - return 0; - - power = widget->power; - if (widget->invert) - power = (power ? 0:1); - - old = snd_soc_read(codec, widget->reg); - new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); - - change = old != new; - if (change) { - pop_dbg(dapm->dev, card->pop_time, - "pop test %s : %s in %d ms\n", - widget->name, widget->power ? "on" : "off", - card->pop_time); - pop_wait(card->pop_time); - snd_soc_write(codec, widget->reg, new); - } - dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, - old, new, change); - return change; -} - /* create new dapm mixer control */ static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, struct snd_soc_dapm_widget *w) @@ -644,57 +605,6 @@ int dapm_reg_event(struct snd_soc_dapm_widget *w, } EXPORT_SYMBOL_GPL(dapm_reg_event); -/* Standard power change method, used to apply power changes to most - * widgets. - */ -static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) -{ - int ret; - - /* call any power change event handlers */ - if (w->event) - dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", - w->power ? "on" : "off", - w->name, w->event_flags); - - /* power up pre event */ - if (w->power && w->event && - (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { - ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); - if (ret < 0) - return ret; - } - - /* power down pre event */ - if (!w->power && w->event && - (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { - ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); - if (ret < 0) - return ret; - } - - dapm_update_bits(w); - - /* power up post event */ - if (w->power && w->event && - (w->event_flags & SND_SOC_DAPM_POST_PMU)) { - ret = w->event(w, - NULL, SND_SOC_DAPM_POST_PMU); - if (ret < 0) - return ret; - } - - /* power down post event */ - if (!w->power && w->event && - (w->event_flags & SND_SOC_DAPM_POST_PMD)) { - ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); - if (ret < 0) - return ret; - } - - return 0; -} - /* Generic check to see if a widget should be powered. */ static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) @@ -981,16 +891,6 @@ static void dapm_seq_run(struct snd_soc_dapm_context *dapm, NULL, SND_SOC_DAPM_POST_PMD); break; - case snd_soc_dapm_input: - case snd_soc_dapm_output: - case snd_soc_dapm_hp: - case snd_soc_dapm_mic: - case snd_soc_dapm_line: - case snd_soc_dapm_spk: - /* No register support currently */ - ret = dapm_generic_apply_power(w); - break; - default: /* Queue it up for application */ cur_sort = sort[w->id]; @@ -1201,6 +1101,15 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) } } + /* Force all contexts in the card to the same bias state */ + power = 0; + list_for_each_entry(d, &card->dapm_list, list) + if (d->dev_power) + power = 1; + list_for_each_entry(d, &card->dapm_list, list) + d->dev_power = power; + + /* Run all the bias changes in parallel */ list_for_each_entry(d, &dapm->card->dapm_list, list) async_schedule_domain(dapm_pre_sequence_async, d, @@ -1304,6 +1213,47 @@ static const struct file_operations dapm_widget_power_fops = { .llseek = default_llseek, }; +static int dapm_bias_open_file(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct snd_soc_dapm_context *dapm = file->private_data; + char *level; + + switch (dapm->bias_level) { + case SND_SOC_BIAS_ON: + level = "On\n"; + break; + case SND_SOC_BIAS_PREPARE: + level = "Prepare\n"; + break; + case SND_SOC_BIAS_STANDBY: + level = "Standby\n"; + break; + case SND_SOC_BIAS_OFF: + level = "Off\n"; + break; + default: + BUG(); + level = "Unknown\n"; + break; + } + + return simple_read_from_buffer(user_buf, count, ppos, level, + strlen(level)); +} + +static const struct file_operations dapm_bias_fops = { + .open = dapm_bias_open_file, + .read = dapm_bias_read_file, + .llseek = default_llseek, +}; + void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) { struct snd_soc_dapm_widget *w; @@ -1312,6 +1262,13 @@ void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) if (!dapm->debugfs_dapm) return; + d = debugfs_create_file("bias_level", 0444, + dapm->debugfs_dapm, dapm, + &dapm_bias_fops); + if (!d) + dev_warn(dapm->dev, + "ASoC: Failed to create bias level debugfs file\n"); + list_for_each_entry(w, &dapm->card->widgets, list) { if (!w->name || w->dapm != dapm) continue; @@ -1520,6 +1477,19 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, } } + /* Try again in other contexts */ + list_for_each_entry(w, &dapm->card->widgets, list) { + if (!strcmp(w->name, pin)) { + dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", + pin, status); + w->connected = status; + /* Allow disabling of forced pins */ + if (status == 0) + w->force = 0; + return 0; + } + } + dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); return -EINVAL; } @@ -1627,7 +1597,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, } /* connect dynamic paths */ - switch(wsink->id) { + switch (wsink->id) { case snd_soc_dapm_adc: case snd_soc_dapm_dac: case snd_soc_dapm_pga: @@ -2360,6 +2330,17 @@ int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, } } + /* Try again with other contexts */ + list_for_each_entry(w, &dapm->card->widgets, list) { + if (!strcmp(w->name, pin)) { + dev_dbg(w->dapm->dev, + "dapm: force enable pin %s\n", pin); + w->connected = 1; + w->force = 1; + return 0; + } + } + dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); return -EINVAL; } @@ -2422,6 +2403,12 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, return w->connected; } + /* Try again in other contexts */ + list_for_each_entry(w, &dapm->card->widgets, list) { + if (!strcmp(w->name, pin)) + return w->connected; + } + return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |