diff options
Diffstat (limited to 'sound/soc/tegra/tegra_max98088.c')
| -rw-r--r--[-rwxr-xr-x] | sound/soc/tegra/tegra_max98088.c | 145 |
1 files changed, 143 insertions, 2 deletions
diff --git a/sound/soc/tegra/tegra_max98088.c b/sound/soc/tegra/tegra_max98088.c index 9bb958fbda4a..acb278d1608a 100755..100644 --- a/sound/soc/tegra/tegra_max98088.c +++ b/sound/soc/tegra/tegra_max98088.c @@ -51,6 +51,11 @@ #include "tegra_pcm.h" #include "tegra_asoc_utils.h" +#ifndef CONFIG_ARCH_TEGRA_2x_SOC +#include "tegra30_ahub.h" +#include "tegra30_i2s.h" +#include "tegra30_dam.h" +#endif #define DRV_NAME "tegra-snd-max98088" @@ -63,8 +68,28 @@ struct tegra_max98088 { struct tegra_asoc_utils_data util_data; struct tegra_max98088_platform_data *pdata; int gpio_requested; + bool init_done; }; +#ifndef CONFIG_ARCH_TEGRA_2x_SOC +static int tegra_max98088_set_dam_cif(int dam_ifc, int srate, + int channels, int bit_size) +{ + tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHOUT, + srate); + tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHIN1, + srate); + tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHIN1, + channels, bit_size, channels, + bit_size); + tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHOUT, + channels, bit_size, channels, + bit_size); + + return 0; +} +#endif + static int tegra_max98088_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -74,9 +99,20 @@ static int tegra_max98088_hw_params(struct snd_pcm_substream *substream, struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = codec->card; struct tegra_max98088 *machine = snd_soc_card_get_drvdata(card); - int srate, mclk; +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); +#endif + int srate, mclk, sample_size; int err; + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + sample_size = 16; + break; + default: + return -EINVAL; + } + srate = params_rate(params); switch (srate) { case 8000: @@ -136,6 +172,12 @@ static int tegra_max98088_hw_params(struct snd_pcm_substream *substream, return err; } +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra_max98088_set_dam_cif(i2s->dam_ifc, srate, + params_channels(params), sample_size); +#endif + return 0; } @@ -188,9 +230,20 @@ static int tegra_bt_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(rtd->cpu_dai); +#endif struct snd_soc_card *card = rtd->card; struct tegra_max98088 *machine = snd_soc_card_get_drvdata(card); - int err, srate, mclk, min_mclk; + int err, srate, mclk, min_mclk, sample_size; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + sample_size = 16; + break; + default: + return -EINVAL; + } srate = params_rate(params); switch (srate) { @@ -234,6 +287,12 @@ static int tegra_bt_hw_params(struct snd_pcm_substream *substream, return err; } +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + tegra_max98088_set_dam_cif(i2s->dam_ifc, params_rate(params), + params_channels(params), sample_size); +#endif + return 0; } @@ -247,9 +306,81 @@ static void tegra_hw_free(struct snd_pcm_substream *substream) return 0; } +#ifndef CONFIG_ARCH_TEGRA_2x_SOC +static int tegra_max98088_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); + + if ((substream->stream != SNDRV_PCM_STREAM_PLAYBACK) || + !(i2s->is_dam_used)) + return 0; + + /*dam configuration*/ + if (!i2s->dam_ch_refcount) + i2s->dam_ifc = tegra30_dam_allocate_controller(); + + tegra30_dam_allocate_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1); + i2s->dam_ch_refcount++; + tegra30_dam_enable_clock(i2s->dam_ifc); + tegra30_dam_set_gain(i2s->dam_ifc, TEGRA30_DAM_CHIN1, 0x1000); + + tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 + + (i2s->dam_ifc*2), i2s->txcif); + + /* + *make the dam tx to i2s rx connection if this is the only client + *using i2s for playback + */ + if (i2s->playback_ref_count == 1) + tegra30_ahub_set_rx_cif_source( + TEGRA30_AHUB_RXCIF_I2S0_RX0 + i2s->id, + TEGRA30_AHUB_TXCIF_DAM0_TX0 + i2s->dam_ifc); + + /* enable the dam*/ + tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_ENABLE, + TEGRA30_DAM_CHIN1); + + return 0; +} + +static int tegra_max98088_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); + + if ((substream->stream != SNDRV_PCM_STREAM_PLAYBACK) || + !(i2s->is_dam_used)) + return 0; + + /* disable the dam*/ + tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_DISABLE, + TEGRA30_DAM_CHIN1); + + /* disconnect the ahub connections*/ + tegra30_ahub_unset_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 + + (i2s->dam_ifc*2)); + + /* disable the dam and free the controller */ + tegra30_dam_disable_clock(i2s->dam_ifc); + tegra30_dam_free_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1); + i2s->dam_ch_refcount--; + if (!i2s->dam_ch_refcount) + tegra30_dam_free_controller(i2s->dam_ifc); + + return 0; +} +#endif + static struct snd_soc_ops tegra_max98088_ops = { .hw_params = tegra_max98088_hw_params, .hw_free = tegra_hw_free, +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + .startup = tegra_max98088_startup, + .shutdown = tegra_max98088_shutdown, +#endif }; static struct snd_soc_ops tegra_spdif_ops = { @@ -260,6 +391,10 @@ static struct snd_soc_ops tegra_spdif_ops = { static struct snd_soc_ops tegra_bt_ops = { .hw_params = tegra_bt_hw_params, .hw_free = tegra_hw_free, +#ifndef CONFIG_ARCH_TEGRA_2x_SOC + .startup = tegra_max98088_startup, + .shutdown = tegra_max98088_shutdown, +#endif }; static struct snd_soc_jack tegra_max98088_hp_jack; @@ -381,6 +516,11 @@ static int tegra_max98088_init(struct snd_soc_pcm_runtime *rtd) struct tegra_max98088_platform_data *pdata = machine->pdata; int ret; + if (machine->init_done) + return 0; + + machine->init_done = true; + if (gpio_is_valid(pdata->gpio_spkr_en)) { ret = gpio_request(pdata->gpio_spkr_en, "spkr_en"); if (ret) { @@ -491,6 +631,7 @@ static struct snd_soc_dai_link tegra_max98088_dai[] = { .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra30-i2s.3", .codec_dai_name = "dit-hifi", + .init = tegra_max98088_init, .ops = &tegra_bt_ops, }, }; |