diff options
author | Takashi Iwai <tiwai@suse.de> | 2010-05-20 12:00:43 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2010-05-20 12:00:43 +0200 |
commit | d71f4cece4bd97d05592836202fc04ff2e7817e3 (patch) | |
tree | 6c877c7a938758b1323d9c97d46b9c536e618c69 /sound/soc/soc-dapm.c | |
parent | 19008bdacb9f7841166ebafe0aef361ee582ffbf (diff) | |
parent | ad8332c1302bcb4f80d593fd3eb477be9d7f5604 (diff) |
Merge branch 'topic/asoc' into for-linus
Conflicts:
sound/soc/codecs/ad1938.c
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r-- | sound/soc/soc-dapm.c | 217 |
1 files changed, 96 insertions, 121 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 7c28f401f43..03cb7c05ebe 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -98,7 +98,6 @@ static void pop_dbg(u32 pop_time, const char *fmt, ...) if (pop_time) { vprintk(fmt, args); - pop_wait(pop_time); } va_end(args); @@ -315,62 +314,14 @@ static int dapm_update_bits(struct snd_soc_dapm_widget *widget) pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n", widget->name, widget->power ? "on" : "off", codec->pop_time); - snd_soc_write(codec, widget->reg, new); pop_wait(codec->pop_time); + snd_soc_write(codec, widget->reg, new); } pr_debug("reg %x old %x new %x change %d\n", widget->reg, old, new, change); return change; } -/* ramps the volume up or down to minimise pops before or after a - * DAPM power event */ -static int dapm_set_pga(struct snd_soc_dapm_widget *widget, int power) -{ - const struct snd_kcontrol_new *k = widget->kcontrols; - - if (widget->muted && !power) - return 0; - if (!widget->muted && power) - return 0; - - if (widget->num_kcontrols && k) { - struct soc_mixer_control *mc = - (struct soc_mixer_control *)k->private_value; - unsigned int reg = mc->reg; - unsigned int shift = mc->shift; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - - if (power) { - int i; - /* power up has happended, increase volume to last level */ - if (invert) { - for (i = max; i > widget->saved_value; i--) - snd_soc_update_bits(widget->codec, reg, mask, i); - } else { - for (i = 0; i < widget->saved_value; i++) - snd_soc_update_bits(widget->codec, reg, mask, i); - } - widget->muted = 0; - } else { - /* power down is about to occur, decrease volume to mute */ - int val = snd_soc_read(widget->codec, reg); - int i = widget->saved_value = (val >> shift) & mask; - if (invert) { - for (; i < mask; i++) - snd_soc_update_bits(widget->codec, reg, mask, i); - } else { - for (; i > 0; i--) - snd_soc_update_bits(widget->codec, reg, mask, i); - } - widget->muted = 1; - } - } - return 0; -} - /* create new dapm mixer control */ static int dapm_new_mixer(struct snd_soc_codec *codec, struct snd_soc_dapm_widget *w) @@ -465,20 +416,10 @@ err: static int dapm_new_pga(struct snd_soc_codec *codec, struct snd_soc_dapm_widget *w) { - struct snd_kcontrol *kcontrol; - int ret = 0; - - if (!w->num_kcontrols) - return -EINVAL; + if (w->num_kcontrols) + pr_err("asoc: PGA controls not supported: '%s'\n", w->name); - kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); - ret = snd_ctl_add(codec->card, kcontrol); - if (ret < 0) { - printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); - return ret; - } - - return ret; + return 0; } /* reset 'walked' bit for each dapm path */ @@ -490,6 +431,25 @@ static inline void dapm_clear_walk(struct snd_soc_codec *codec) p->walked = 0; } +/* We implement power down on suspend by checking the power state of + * the ALSA card - when we are suspending the ALSA state for the card + * is set to D3. + */ +static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) +{ + struct snd_soc_codec *codec = widget->codec; + + switch (snd_power_get_state(codec->card)) { + case SNDRV_CTL_POWER_D3hot: + case SNDRV_CTL_POWER_D3cold: + if (widget->ignore_suspend) + pr_debug("%s ignoring suspend\n", widget->name); + return widget->ignore_suspend; + default: + return 1; + } +} + /* * Recursively check for a completed path to an active or physically connected * output widget. Returns number of complete paths. @@ -506,7 +466,7 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) case snd_soc_dapm_adc: case snd_soc_dapm_aif_out: if (widget->active) - return 1; + return snd_soc_dapm_suspend_check(widget); default: break; } @@ -514,12 +474,12 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) if (widget->connected) { /* connected pin ? */ if (widget->id == snd_soc_dapm_output && !widget->ext) - return 1; + return snd_soc_dapm_suspend_check(widget); /* connected jack or spk ? */ if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) - return 1; + return snd_soc_dapm_suspend_check(widget); } list_for_each_entry(path, &widget->sinks, list_source) { @@ -552,7 +512,7 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) case snd_soc_dapm_dac: case snd_soc_dapm_aif_in: if (widget->active) - return 1; + return snd_soc_dapm_suspend_check(widget); default: break; } @@ -560,16 +520,16 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) if (widget->connected) { /* connected pin ? */ if (widget->id == snd_soc_dapm_input && !widget->ext) - return 1; + return snd_soc_dapm_suspend_check(widget); /* connected VMID/Bias for lower pops */ if (widget->id == snd_soc_dapm_vmid) - return 1; + return snd_soc_dapm_suspend_check(widget); /* connected jack ? */ if (widget->id == snd_soc_dapm_mic || (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) - return 1; + return snd_soc_dapm_suspend_check(widget); } list_for_each_entry(path, &widget->sources, list_sink) { @@ -634,16 +594,8 @@ static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) return ret; } - /* Lower PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && !w->power) - dapm_set_pga(w, w->power); - dapm_update_bits(w); - /* Raise PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && w->power) - dapm_set_pga(w, w->power); - /* power up post event */ if (w->power && w->event && (w->event_flags & SND_SOC_DAPM_POST_PMU)) { @@ -810,10 +762,6 @@ static void dapm_seq_run_coalesced(struct snd_soc_codec *codec, pr_err("%s: pre event failed: %d\n", w->name, ret); } - - /* Lower PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && !w->power) - dapm_set_pga(w, w->power); } if (reg >= 0) { @@ -825,10 +773,6 @@ static void dapm_seq_run_coalesced(struct snd_soc_codec *codec, } list_for_each_entry(w, pending, power_list) { - /* Raise PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && w->power) - dapm_set_pga(w, w->power); - /* power up post event */ if (w->power && w->event && (w->event_flags & SND_SOC_DAPM_POST_PMU)) { @@ -973,19 +917,12 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) if (!w->power_check) continue; - /* If we're suspending then pull down all the - * power. */ - switch (event) { - case SND_SOC_DAPM_STREAM_SUSPEND: - power = 0; - break; - - default: + if (!w->force) power = w->power_check(w); - if (power) - sys_power = 1; - break; - } + else + power = 1; + if (power) + sys_power = 1; if (w->power == power) continue; @@ -1076,6 +1013,7 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n", codec->pop_time); + pop_wait(codec->pop_time); return 0; } @@ -1338,6 +1276,9 @@ static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec, if (!strcmp(w->name, pin)) { pr_debug("dapm: %s: pin %s\n", codec->name, pin); w->connected = status; + /* Allow disabling of forced pins */ + if (status == 0) + w->force = 0; return 0; } } @@ -1594,12 +1535,6 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, unsigned int invert = mc->invert; unsigned int mask = (1 << fls(max)) - 1; - /* return the saved value if we are powered down */ - if (widget->id == snd_soc_dapm_pga && !widget->power) { - ucontrol->value.integer.value[0] = widget->saved_value; - return 0; - } - ucontrol->value.integer.value[0] = (snd_soc_read(widget->codec, reg) >> shift) & mask; if (shift != rshift) @@ -1659,13 +1594,6 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, mutex_lock(&widget->codec->mutex); widget->value = val; - /* save volume value if the widget is powered down */ - if (widget->id == snd_soc_dapm_pga && !widget->power) { - widget->saved_value = val; - mutex_unlock(&widget->codec->mutex); - return 1; - } - if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { if (val) /* new connection */ @@ -2094,18 +2022,8 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, w->active = 0; break; case SND_SOC_DAPM_STREAM_SUSPEND: - if (w->active) - w->suspend = 1; - w->active = 0; - break; case SND_SOC_DAPM_STREAM_RESUME: - if (w->suspend) { - w->active = 1; - w->suspend = 0; - } - break; case SND_SOC_DAPM_STREAM_PAUSE_PUSH: - break; case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: break; } @@ -2135,6 +2053,36 @@ int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin) EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); /** + * snd_soc_dapm_force_enable_pin - force a pin to be enabled + * @codec: SoC codec + * @pin: pin name + * + * Enables input/output pin regardless of any other state. This is + * intended for use with microphone bias supplies used in microphone + * jack detection. + * + * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to + * do any widget power switching. + */ +int snd_soc_dapm_force_enable_pin(struct snd_soc_codec *codec, const char *pin) +{ + struct snd_soc_dapm_widget *w; + + list_for_each_entry(w, &codec->dapm_widgets, list) { + if (!strcmp(w->name, pin)) { + pr_debug("dapm: %s: pin %s\n", codec->name, pin); + w->connected = 1; + w->force = 1; + return 0; + } + } + + pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin); + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); + +/** * snd_soc_dapm_disable_pin - disable pin. * @codec: SoC codec * @pin: pin name @@ -2192,6 +2140,33 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin) EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); /** + * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint + * @codec: audio codec + * @pin: audio signal pin endpoint (or start point) + * + * Mark the given endpoint or pin as ignoring suspend. When the + * system is disabled a path between two endpoints flagged as ignoring + * suspend will not be disabled. The path must already be enabled via + * normal means at suspend time, it will not be turned on if it was not + * already enabled. + */ +int snd_soc_dapm_ignore_suspend(struct snd_soc_codec *codec, const char *pin) +{ + struct snd_soc_dapm_widget *w; + + list_for_each_entry(w, &codec->dapm_widgets, list) { + if (!strcmp(w->name, pin)) { + w->ignore_suspend = 1; + return 0; + } + } + + pr_err("Unknown DAPM pin: %s\n", pin); + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); + +/** * snd_soc_dapm_free - free dapm resources * @socdev: SoC device * |