diff options
Diffstat (limited to 'sound/soc/soc-dapm.c')
| -rw-r--r-- | sound/soc/soc-dapm.c | 197 |
1 files changed, 194 insertions, 3 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 6c79ca6..ad0d801 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -53,13 +53,15 @@ /* dapm power sequences - make this per codec in the future */ static int dapm_up_seq[] = { snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic, - snd_soc_dapm_mux, snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_pga, - snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post + snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_dac, + snd_soc_dapm_mixer, snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp, + snd_soc_dapm_spk, snd_soc_dapm_post }; static int dapm_down_seq[] = { snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_pga, snd_soc_dapm_mixer, snd_soc_dapm_dac, snd_soc_dapm_mic, - snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_post + snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_value_mux, + snd_soc_dapm_post }; static int dapm_status = 1; @@ -134,6 +136,25 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, } } break; + case snd_soc_dapm_value_mux: { + struct soc_value_enum *e = (struct soc_value_enum *) + w->kcontrols[i].private_value; + int val, item; + + val = snd_soc_read(w->codec, e->reg); + val = (val >> e->shift_l) & e->mask; + for (item = 0; item < e->max; item++) { + if (val == e->values[item]) + break; + } + + p->connect = 0; + for (i = 0; i < e->max; i++) { + if (!(strcmp(p->name, e->texts[i])) && item == i) + p->connect = 1; + } + } + break; /* does not effect routing - always connected */ case snd_soc_dapm_pga: case snd_soc_dapm_output: @@ -179,6 +200,30 @@ static int dapm_connect_mux(struct snd_soc_codec *codec, return -ENODEV; } +/* connect value_mux widget to it's interconnecting audio paths */ +static int dapm_connect_value_mux(struct snd_soc_codec *codec, + struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, + struct snd_soc_dapm_path *path, const char *control_name, + const struct snd_kcontrol_new *kcontrol) +{ + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + int i; + + for (i = 0; i < e->max; i++) { + if (!(strcmp(control_name, e->texts[i]))) { + list_add(&path->list, &codec->dapm_paths); + list_add(&path->list_sink, &dest->sources); + list_add(&path->list_source, &src->sinks); + path->name = (char *)e->texts[i]; + dapm_set_path_status(dest, path, 0); + return 0; + } + } + + return -ENODEV; +} + /* connect mixer widget to it's interconnecting audio paths */ static int dapm_connect_mixer(struct snd_soc_codec *codec, struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, @@ -653,6 +698,7 @@ static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action) case snd_soc_dapm_vmid: continue; case snd_soc_dapm_mux: + case snd_soc_dapm_value_mux: case snd_soc_dapm_output: case snd_soc_dapm_input: case snd_soc_dapm_switch: @@ -728,6 +774,45 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, return 0; } +/* test and update the power status of a value_mux widget */ +static int dapm_value_mux_update_power(struct snd_soc_dapm_widget *widget, + struct snd_kcontrol *kcontrol, int mask, + int mux, int val, struct soc_value_enum *e) +{ + struct snd_soc_dapm_path *path; + int found = 0; + + if (widget->id != snd_soc_dapm_value_mux) + return -ENODEV; + + if (!snd_soc_test_bits(widget->codec, e->reg, mask, val)) + return 0; + + /* find dapm widget path assoc with kcontrol */ + list_for_each_entry(path, &widget->codec->dapm_paths, list) { + if (path->kcontrol != kcontrol) + continue; + + if (!path->name || !e->texts[mux]) + continue; + + found = 1; + /* we now need to match the string in the enum to the path */ + if (!(strcmp(path->name, e->texts[mux]))) + path->connect = 1; /* new connection */ + else + path->connect = 0; /* old connection must be + powered down */ + } + + if (found) { + dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); + dump_dapm(widget->codec, "mux power update"); + } + + return 0; +} + /* test and update the power status of a mixer or switch widget */ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, struct snd_kcontrol *kcontrol, int reg, @@ -965,6 +1050,12 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, if (ret != 0) goto err; break; + case snd_soc_dapm_value_mux: + ret = dapm_connect_value_mux(codec, wsource, wsink, path, + control, &wsink->kcontrols[0]); + if (ret != 0) + goto err; + break; case snd_soc_dapm_switch: case snd_soc_dapm_mixer: ret = dapm_connect_mixer(codec, wsource, wsink, path, control); @@ -1047,6 +1138,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec) dapm_new_mixer(codec, w); break; case snd_soc_dapm_mux: + case snd_soc_dapm_value_mux: dapm_new_mux(codec, w); break; case snd_soc_dapm_adc: @@ -1274,6 +1366,105 @@ out: EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); /** + * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get + * callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a dapm semi enumerated double mixer control. + * + * 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_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + unsigned short reg_val, val, mux; + + reg_val = snd_soc_read(widget->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_dapm_get_value_enum_double); + +/** + * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set + * callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value of a dapm semi enumerated double mixer control. + * + * 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_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + unsigned short val, mux; + unsigned short mask; + int ret = 0; + + if (ucontrol->value.enumerated.item[0] > e->max - 1) + return -EINVAL; + mux = ucontrol->value.enumerated.item[0]; + 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; + } + + mutex_lock(&widget->codec->mutex); + widget->value = val; + dapm_value_mux_update_power(widget, kcontrol, mask, mux, val, e); + if (widget->event) { + if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { + ret = widget->event(widget, + kcontrol, SND_SOC_DAPM_PRE_REG); + if (ret < 0) + goto out; + } + ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); + if (widget->event_flags & SND_SOC_DAPM_POST_REG) + ret = widget->event(widget, + kcontrol, SND_SOC_DAPM_POST_REG); + } else + ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); + +out: + mutex_unlock(&widget->codec->mutex); + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); + +/** * snd_soc_dapm_new_control - create new dapm control * @codec: audio codec * @widget: widget template |
