int ux500_ab8500_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned int fmt, fmt_if1;
int channels, ret = 0, slots, driver_mode;
unsigned int codec_slot_width, cpu_slot_width;
bool streamIsPlayback;
pr_debug("%s: Enter\n", __func__);
pr_debug("%s: substream->pcm->name = %s\n"
"substream->pcm->id = %s.\n"
"substream->name = %s.\n"
"substream->number = %d.\n",
__func__,
substream->pcm->name,
substream->pcm->id,
substream->name,
substream->number);
channels = params_channels(params);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S32_LE:
cpu_slot_width = 32;
break;
default:
case SNDRV_PCM_FORMAT_S16_LE:
cpu_slot_width = 16;
break;
}
/* Setup codec depending on driver-mode */
driver_mode = (channels == 8) ?
DRIVERMODE_CODEC_ONLY : DRIVERMODE_NORMAL;
pr_debug("%s: Driver-mode: %s.\n",
__func__,
(driver_mode == DRIVERMODE_NORMAL) ? "NORMAL" : "CODEC_ONLY");
ab8500_audio_set_bit_delay(codec_dai, 1);
ux500_msp_dai_set_data_delay(cpu_dai, MSP_DELAY_1);
if (driver_mode == DRIVERMODE_NORMAL) {
codec_slot_width = cpu_slot_width;
ab8500_audio_set_word_length(codec_dai, codec_slot_width);
fmt = SND_SOC_DAIFMT_DSP_A |
SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CONT;
} else {
codec_slot_width = 20;
ab8500_audio_set_word_length(codec_dai, codec_slot_width);
fmt = SND_SOC_DAIFMT_DSP_A |
SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_GATED;
}
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
pr_err("%s: ERROR: snd_soc_dai_set_fmt failed for codec_dai (ret = %d)!\n",
__func__,
ret);
return ret;
}
ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0) {
pr_err("%s: ERROR: snd_soc_dai_set_fmt for cpu_dai (ret = %d)!\n",
__func__,
ret);
return ret;
}
/* Setup TDM-slots */
streamIsPlayback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
switch (channels) {
case 1:
slots = 8;
tx_slots = (streamIsPlayback) ? TX_SLOT_MONO : 0;
rx_slots = (streamIsPlayback) ? 0 : RX_SLOT_MONO;
break;
case 2:
slots = 8;
tx_slots = (streamIsPlayback) ? TX_SLOT_STEREO : 0;
rx_slots = (streamIsPlayback) ? 0 : RX_SLOT_STEREO;
break;
case 8:
slots = 8;
tx_slots = (streamIsPlayback) ? TX_SLOT_8CH : 0;
rx_slots = (streamIsPlayback) ? 0 : RX_SLOT_8CH;
break;
default:
return -EINVAL;
}
pr_debug("%s: CPU-DAI TDM: TX=0x%04X RX=0x%04x\n",
__func__, tx_slots, rx_slots);
ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_slots, rx_slots, slots, cpu_slot_width);
if (ret)
return ret;
pr_debug("%s: CODEC-DAI TDM: TX=0x%04X RX=0x%04x\n",
__func__, tx_slots, rx_slots);
ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_slots, rx_slots, slots, codec_slot_width);
if (ret)
return ret;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
pr_debug("%s: Setup IF1 for FM-radio.\n", __func__);
fmt_if1 = SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_I2S;
ret = ab8500_audio_setup_if1(codec_dai->codec, fmt_if1, 16, 1);
if (ret)
return ret;
}
return 0;
}
int ux500_gen_msp0_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int channels = params_channels(params);
int err = 0;
pr_debug("%s: Enter.\n", __func__);
pr_debug("%s: substream->pcm->name = %s.\n", __func__, substream->pcm->name);
pr_debug("%s: substream->pcm->id = %s.\n", __func__, substream->pcm->id);
pr_debug("%s: substream->name = %s.\n", __func__, substream->name);
pr_debug("%s: substream->number = %d.\n", __func__, substream->number);
pr_debug("%s: channels = %d.\n", __func__, channels);
pr_debug("%s: DAI-index (Platform): %d\n", __func__, cpu_dai->id);
if (channels != 1) {
pr_err("%s: Only 1 channel.\n", __func__);
err = -EINVAL;
goto out_err;
}
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
default:
pr_err("%s: Only S16_LE.\n", __func__);
err = -EINVAL;
goto out_err;
}
err = snd_soc_dai_set_fmt(cpu_dai,
SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBS_CFS |
SND_SOC_DAIFMT_NB_NF);
if (err) {
pr_err("%s: snd_soc_dai_set_fmt(cpu_dai) failed with %d.\n",
__func__,
err);
goto out_err;
}
err = snd_soc_dai_set_sysclk(cpu_dai,
UX500_MSP_MASTER_CLOCK,
19200000,
0);
if (err) {
pr_err("%s: snd_soc_dai_set_sysclk(cpu_dai) failed with %d.\n",
__func__, err);
goto out_err;
}
err = snd_soc_dai_set_tdm_slot(cpu_dai, 0x1, 0x1, 1, 16);
if (err) {
pr_err("%s: cg29xx_set_tdm_slot(cpu_dai) failed with %d.\n",
__func__,
err);
goto out_err;
}
ux500_msp_dai_set_data_delay(cpu_dai, MSP_DELAY_1);
out_err:
return err;
}
