diff options
Diffstat (limited to 'sound/soc/tegra/tegra_asoc_utils.c')
| -rw-r--r-- | sound/soc/tegra/tegra_asoc_utils.c | 138 |
1 files changed, 137 insertions, 1 deletions
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c index b134f0808afa..6ab5b2d46a1f 100644 --- a/sound/soc/tegra/tegra_asoc_utils.c +++ b/sound/soc/tegra/tegra_asoc_utils.c @@ -27,11 +27,14 @@ #include <mach/clk.h> +#include <sound/soc.h> + +#include "tegra_pcm.h" #include "tegra_asoc_utils.h" int g_is_call_mode; -bool tegra_is_voice_call_active() +bool tegra_is_voice_call_active(void) { if (g_is_call_mode) return true; @@ -40,6 +43,115 @@ bool tegra_is_voice_call_active() } EXPORT_SYMBOL_GPL(tegra_is_voice_call_active); +static int tegra_get_avp_device(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tegra_asoc_utils_data *data = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = data->avp_device_id; + return 0; +} + +static int tegra_set_avp_device(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tegra_asoc_utils_data *data = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = data->card; + struct snd_soc_pcm_runtime *rtd; + struct snd_pcm_substream *substream; + struct tegra_runtime_data *prtd; + int id, old_id = data->avp_device_id; + + id = ucontrol->value.integer.value[0]; + if ((id >= card->num_rtd) || (id < 0)) + id = -1; + + if (old_id >= 0) { + rtd = &card->rtd[old_id]; + substream = + rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + if (substream && substream->runtime) { + prtd = substream->runtime->private_data; + if (prtd->running) + return -EBUSY; + if (prtd) + prtd->disable_intr = false; + } + } + + if (id >= 0) { + rtd = &card->rtd[id]; + substream = + rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + if (substream && substream->runtime) { + prtd = substream->runtime->private_data; + if (prtd->running) + return -EBUSY; + if (prtd) + prtd->disable_intr = true; + } + } + data->avp_device_id = id; + return 1; +} + +static int tegra_get_dma_ch_id(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tegra_asoc_utils_data *data = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = data->card; + struct snd_soc_pcm_runtime *rtd; + struct snd_pcm_substream *substream; + struct tegra_runtime_data *prtd; + + ucontrol->value.integer.value[0] = -1; + if (data->avp_device_id < 0) + return 0; + + rtd = &card->rtd[data->avp_device_id]; + substream = rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + if (!substream || !substream->runtime) + return 0; + + prtd = substream->runtime->private_data; + if (!prtd || !prtd->dma_chan) + return 0; + + ucontrol->value.integer.value[0] = + tegra_dma_get_channel_id(prtd->dma_chan); + return 0; +} + +static int tegra_get_dma_addr(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tegra_asoc_utils_data *data = snd_kcontrol_chip(kcontrol); + struct snd_soc_card *card = data->card; + struct snd_soc_pcm_runtime *rtd; + struct snd_pcm_substream *substream; + + ucontrol->value.integer.value[0] = 0; + if (data->avp_device_id < 0) + return 0; + + rtd = &card->rtd[data->avp_device_id]; + substream = rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + if (!substream || !substream->runtime) + return 0; + + ucontrol->value.integer.value[0] = substream->runtime->dma_addr; + return 0; +} + +struct snd_kcontrol_new tegra_avp_controls[] = { + SOC_SINGLE_EXT("AVP alsa device select", 0, 0, TEGRA_ALSA_MAX_DEVICES, \ + 0, tegra_get_avp_device, tegra_set_avp_device), + SOC_SINGLE_EXT("AVP DMA channel id", 0, 0, TEGRA_DMA_MAX_CHANNELS, \ + 0, tegra_get_dma_ch_id, NULL), + SOC_SINGLE_EXT("AVP DMA address", 0, 0, 0xFFFFFFFF, \ + 0, tegra_get_dma_addr, NULL), +}; + int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate, int mclk) { @@ -152,6 +264,26 @@ int tegra_asoc_utils_clk_disable(struct tegra_asoc_utils_data *data) } EXPORT_SYMBOL_GPL(tegra_asoc_utils_clk_disable); +int tegra_asoc_utils_register_ctls(struct tegra_asoc_utils_data *data) +{ + int i; + int ret = 0; + + /* Add AVP related alsa controls */ + data->avp_device_id = -1; + for (i = 0; i < ARRAY_SIZE(tegra_avp_controls); i++) { + ret = snd_ctl_add(data->card->snd_card, + snd_ctl_new1(&tegra_avp_controls[i], data)); + if (ret < 0) { + dev_err(data->dev, "Can't add avp alsa controls"); + return ret; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(tegra_asoc_utils_register_ctls); + int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data, struct device *dev, struct snd_soc_card *card) { @@ -276,6 +408,10 @@ void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data) clk_put(data->clk_out1); clk_put(data->clk_cdev1); + /* Just to make sure that clk_cdev1 should turn off in case if it is + * switched on by some codec whose hw switch is not registered.*/ + if (tegra_is_clk_enabled(data->clk_cdev1)) + clk_disable(data->clk_cdev1); if (!IS_ERR(data->clk_pll_a_out0)) clk_put(data->clk_pll_a_out0); |