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path: root/sound/soc/sti/uniperif_player.c
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Diffstat (limited to 'sound/soc/sti/uniperif_player.c')
-rw-r--r--sound/soc/sti/uniperif_player.c182
1 files changed, 131 insertions, 51 deletions
diff --git a/sound/soc/sti/uniperif_player.c b/sound/soc/sti/uniperif_player.c
index 7aca6b92f718..ee1c7c245bc7 100644
--- a/sound/soc/sti/uniperif_player.c
+++ b/sound/soc/sti/uniperif_player.c
@@ -21,23 +21,14 @@
/* sys config registers definitions */
#define SYS_CFG_AUDIO_GLUE 0xA4
-#define SYS_CFG_AUDI0_GLUE_PCM_CLKX 8
/*
* Driver specific types.
*/
-#define UNIPERIF_PLAYER_TYPE_IS_HDMI(p) \
- ((p)->info->player_type == SND_ST_UNIPERIF_PLAYER_TYPE_HDMI)
-#define UNIPERIF_PLAYER_TYPE_IS_PCM(p) \
- ((p)->info->player_type == SND_ST_UNIPERIF_PLAYER_TYPE_PCM)
-#define UNIPERIF_PLAYER_TYPE_IS_SPDIF(p) \
- ((p)->info->player_type == SND_ST_UNIPERIF_PLAYER_TYPE_SPDIF)
-#define UNIPERIF_PLAYER_TYPE_IS_IEC958(p) \
- (UNIPERIF_PLAYER_TYPE_IS_HDMI(p) || \
- UNIPERIF_PLAYER_TYPE_IS_SPDIF(p))
#define UNIPERIF_PLAYER_CLK_ADJ_MIN -999999
#define UNIPERIF_PLAYER_CLK_ADJ_MAX 1000000
+#define UNIPERIF_PLAYER_I2S_OUT 1 /* player id connected to I2S/TDM TX bus */
/*
* Note: snd_pcm_hardware is linked to DMA controller but is declared here to
@@ -444,18 +435,11 @@ static int uni_player_prepare_pcm(struct uniperif *player,
/* Force slot width to 32 in I2S mode (HW constraint) */
if ((player->daifmt & SND_SOC_DAIFMT_FORMAT_MASK) ==
- SND_SOC_DAIFMT_I2S) {
+ SND_SOC_DAIFMT_I2S)
slot_width = 32;
- } else {
- switch (runtime->format) {
- case SNDRV_PCM_FORMAT_S16_LE:
- slot_width = 16;
- break;
- default:
- slot_width = 32;
- break;
- }
- }
+ else
+ slot_width = snd_pcm_format_width(runtime->format);
+
output_frame_size = slot_width * runtime->channels;
clk_div = player->mclk / runtime->rate;
@@ -530,7 +514,6 @@ static int uni_player_prepare_pcm(struct uniperif *player,
SET_UNIPERIF_CONFIG_ONE_BIT_AUD_DISABLE(player);
SET_UNIPERIF_I2S_FMT_ORDER_MSB(player);
- SET_UNIPERIF_I2S_FMT_SCLK_EDGE_FALLING(player);
/* No iec958 formatting as outputting to DAC */
SET_UNIPERIF_CTRL_SPDIF_FMT_OFF(player);
@@ -538,6 +521,55 @@ static int uni_player_prepare_pcm(struct uniperif *player,
return 0;
}
+static int uni_player_prepare_tdm(struct uniperif *player,
+ struct snd_pcm_runtime *runtime)
+{
+ int tdm_frame_size; /* unip tdm frame size in bytes */
+ int user_frame_size; /* user tdm frame size in bytes */
+ /* default unip TDM_WORD_POS_X_Y */
+ unsigned int word_pos[4] = {
+ 0x04060002, 0x0C0E080A, 0x14161012, 0x1C1E181A};
+ int freq, ret;
+
+ tdm_frame_size =
+ sti_uniperiph_get_unip_tdm_frame_size(player);
+ user_frame_size =
+ sti_uniperiph_get_user_frame_size(runtime);
+
+ /* fix 16/0 format */
+ SET_UNIPERIF_CONFIG_MEM_FMT_16_0(player);
+ SET_UNIPERIF_I2S_FMT_DATA_SIZE_32(player);
+
+ /* number of words inserted on the TDM line */
+ SET_UNIPERIF_I2S_FMT_NUM_CH(player, user_frame_size / 4 / 2);
+
+ SET_UNIPERIF_I2S_FMT_ORDER_MSB(player);
+ SET_UNIPERIF_I2S_FMT_ALIGN_LEFT(player);
+
+ /* Enable the tdm functionality */
+ SET_UNIPERIF_TDM_ENABLE_TDM_ENABLE(player);
+
+ /* number of 8 bits timeslots avail in unip tdm frame */
+ SET_UNIPERIF_TDM_FS_REF_DIV_NUM_TIMESLOT(player, tdm_frame_size);
+
+ /* set the timeslot allocation for words in FIFO */
+ sti_uniperiph_get_tdm_word_pos(player, word_pos);
+ SET_UNIPERIF_TDM_WORD_POS(player, 1_2, word_pos[WORD_1_2]);
+ SET_UNIPERIF_TDM_WORD_POS(player, 3_4, word_pos[WORD_3_4]);
+ SET_UNIPERIF_TDM_WORD_POS(player, 5_6, word_pos[WORD_5_6]);
+ SET_UNIPERIF_TDM_WORD_POS(player, 7_8, word_pos[WORD_7_8]);
+
+ /* set unip clk rate (not done vai set_sysclk ops) */
+ freq = runtime->rate * tdm_frame_size * 8;
+ mutex_lock(&player->ctrl_lock);
+ ret = uni_player_clk_set_rate(player, freq);
+ if (!ret)
+ player->mclk = freq;
+ mutex_unlock(&player->ctrl_lock);
+
+ return 0;
+}
+
/*
* ALSA uniperipheral iec958 controls
*/
@@ -668,11 +700,29 @@ static int uni_player_startup(struct snd_pcm_substream *substream,
{
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *player = priv->dai_data.uni;
+ int ret;
+
player->substream = substream;
player->clk_adj = 0;
- return 0;
+ if (!UNIPERIF_TYPE_IS_TDM(player))
+ return 0;
+
+ /* refine hw constraint in tdm mode */
+ ret = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ sti_uniperiph_fix_tdm_chan,
+ player, SNDRV_PCM_HW_PARAM_CHANNELS,
+ -1);
+ if (ret < 0)
+ return ret;
+
+ return snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ sti_uniperiph_fix_tdm_format,
+ player, SNDRV_PCM_HW_PARAM_FORMAT,
+ -1);
}
static int uni_player_set_sysclk(struct snd_soc_dai *dai, int clk_id,
@@ -682,7 +732,7 @@ static int uni_player_set_sysclk(struct snd_soc_dai *dai, int clk_id,
struct uniperif *player = priv->dai_data.uni;
int ret;
- if (dir == SND_SOC_CLOCK_IN)
+ if (UNIPERIF_TYPE_IS_TDM(player) || (dir == SND_SOC_CLOCK_IN))
return 0;
if (clk_id != 0)
@@ -714,7 +764,13 @@ static int uni_player_prepare(struct snd_pcm_substream *substream,
}
/* Calculate transfer size (in fifo cells and bytes) for frame count */
- transfer_size = runtime->channels * UNIPERIF_FIFO_FRAMES;
+ if (player->info->type == SND_ST_UNIPERIF_TYPE_TDM) {
+ /* transfer size = user frame size (in 32 bits FIFO cell) */
+ transfer_size =
+ sti_uniperiph_get_user_frame_size(runtime) / 4;
+ } else {
+ transfer_size = runtime->channels * UNIPERIF_FIFO_FRAMES;
+ }
/* Calculate number of empty cells available before asserting DREQ */
if (player->ver < SND_ST_UNIPERIF_VERSION_UNI_PLR_TOP_1_0) {
@@ -738,16 +794,19 @@ static int uni_player_prepare(struct snd_pcm_substream *substream,
SET_UNIPERIF_CONFIG_DMA_TRIG_LIMIT(player, trigger_limit);
/* Uniperipheral setup depends on player type */
- switch (player->info->player_type) {
- case SND_ST_UNIPERIF_PLAYER_TYPE_HDMI:
+ switch (player->info->type) {
+ case SND_ST_UNIPERIF_TYPE_HDMI:
ret = uni_player_prepare_iec958(player, runtime);
break;
- case SND_ST_UNIPERIF_PLAYER_TYPE_PCM:
+ case SND_ST_UNIPERIF_TYPE_PCM:
ret = uni_player_prepare_pcm(player, runtime);
break;
- case SND_ST_UNIPERIF_PLAYER_TYPE_SPDIF:
+ case SND_ST_UNIPERIF_TYPE_SPDIF:
ret = uni_player_prepare_iec958(player, runtime);
break;
+ case SND_ST_UNIPERIF_TYPE_TDM:
+ ret = uni_player_prepare_tdm(player, runtime);
+ break;
default:
dev_err(player->dev, "invalid player type");
return -EINVAL;
@@ -852,8 +911,8 @@ static int uni_player_start(struct uniperif *player)
* will not take affect and hang the player.
*/
if (player->ver < SND_ST_UNIPERIF_VERSION_UNI_PLR_TOP_1_0)
- if (UNIPERIF_PLAYER_TYPE_IS_IEC958(player))
- SET_UNIPERIF_CTRL_SPDIF_FMT_ON(player);
+ if (UNIPERIF_TYPE_IS_IEC958(player))
+ SET_UNIPERIF_CTRL_SPDIF_FMT_ON(player);
/* Force channel status update (no update if clk disable) */
if (player->ver < SND_ST_UNIPERIF_VERSION_UNI_PLR_TOP_1_0)
@@ -954,27 +1013,30 @@ static void uni_player_shutdown(struct snd_pcm_substream *substream,
player->substream = NULL;
}
-static int uni_player_parse_dt_clk_glue(struct platform_device *pdev,
- struct uniperif *player)
+static int uni_player_parse_dt_audio_glue(struct platform_device *pdev,
+ struct uniperif *player)
{
- int bit_offset;
struct device_node *node = pdev->dev.of_node;
struct regmap *regmap;
-
- bit_offset = SYS_CFG_AUDI0_GLUE_PCM_CLKX + player->info->id;
+ struct reg_field regfield[2] = {
+ /* PCM_CLK_SEL */
+ REG_FIELD(SYS_CFG_AUDIO_GLUE,
+ 8 + player->info->id,
+ 8 + player->info->id),
+ /* PCMP_VALID_SEL */
+ REG_FIELD(SYS_CFG_AUDIO_GLUE, 0, 1)
+ };
regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg");
- if (regmap) {
- struct reg_field regfield =
- REG_FIELD(SYS_CFG_AUDIO_GLUE, bit_offset, bit_offset);
-
- player->clk_sel = regmap_field_alloc(regmap, regfield);
- } else {
+ if (!regmap) {
dev_err(&pdev->dev, "sti-audio-clk-glue syscf not found\n");
return -EINVAL;
}
+ player->clk_sel = regmap_field_alloc(regmap, regfield[0]);
+ player->valid_sel = regmap_field_alloc(regmap, regfield[1]);
+
return 0;
}
@@ -1012,19 +1074,21 @@ static int uni_player_parse_dt(struct platform_device *pdev,
}
if (strcasecmp(mode, "hdmi") == 0)
- info->player_type = SND_ST_UNIPERIF_PLAYER_TYPE_HDMI;
+ info->type = SND_ST_UNIPERIF_TYPE_HDMI;
else if (strcasecmp(mode, "pcm") == 0)
- info->player_type = SND_ST_UNIPERIF_PLAYER_TYPE_PCM;
+ info->type = SND_ST_UNIPERIF_TYPE_PCM;
else if (strcasecmp(mode, "spdif") == 0)
- info->player_type = SND_ST_UNIPERIF_PLAYER_TYPE_SPDIF;
+ info->type = SND_ST_UNIPERIF_TYPE_SPDIF;
+ else if (strcasecmp(mode, "tdm") == 0)
+ info->type = SND_ST_UNIPERIF_TYPE_TDM;
else
- info->player_type = SND_ST_UNIPERIF_PLAYER_TYPE_NONE;
+ info->type = SND_ST_UNIPERIF_TYPE_NONE;
/* Save the info structure */
player->info = info;
- /* Get the PCM_CLK_SEL bit from audio-glue-ctrl SoC register */
- if (uni_player_parse_dt_clk_glue(pdev, player))
+ /* Get PCM_CLK_SEL & PCMP_VALID_SEL from audio-glue-ctrl SoC reg */
+ if (uni_player_parse_dt_audio_glue(pdev, player))
return -EINVAL;
return 0;
@@ -1037,7 +1101,8 @@ static const struct snd_soc_dai_ops uni_player_dai_ops = {
.trigger = uni_player_trigger,
.hw_params = sti_uniperiph_dai_hw_params,
.set_fmt = sti_uniperiph_dai_set_fmt,
- .set_sysclk = uni_player_set_sysclk
+ .set_sysclk = uni_player_set_sysclk,
+ .set_tdm_slot = sti_uniperiph_set_tdm_slot
};
int uni_player_init(struct platform_device *pdev,
@@ -1047,7 +1112,6 @@ int uni_player_init(struct platform_device *pdev,
player->dev = &pdev->dev;
player->state = UNIPERIF_STATE_STOPPED;
- player->hw = &uni_player_pcm_hw;
player->dai_ops = &uni_player_dai_ops;
ret = uni_player_parse_dt(pdev, player);
@@ -1057,6 +1121,11 @@ int uni_player_init(struct platform_device *pdev,
return ret;
}
+ if (UNIPERIF_TYPE_IS_TDM(player))
+ player->hw = &uni_tdm_hw;
+ else
+ player->hw = &uni_player_pcm_hw;
+
/* Get uniperif resource */
player->clk = of_clk_get(pdev->dev.of_node, 0);
if (IS_ERR(player->clk))
@@ -1073,6 +1142,17 @@ int uni_player_init(struct platform_device *pdev,
}
}
+ /* connect to I2S/TDM TX bus */
+ if (player->valid_sel &&
+ (player->info->id == UNIPERIF_PLAYER_I2S_OUT)) {
+ ret = regmap_field_write(player->valid_sel, player->info->id);
+ if (ret) {
+ dev_err(player->dev,
+ "%s: unable to connect to tdm bus", __func__);
+ return ret;
+ }
+ }
+
ret = devm_request_irq(&pdev->dev, player->irq,
uni_player_irq_handler, IRQF_SHARED,
dev_name(&pdev->dev), player);
@@ -1087,7 +1167,7 @@ int uni_player_init(struct platform_device *pdev,
SET_UNIPERIF_CTRL_SPDIF_LAT_OFF(player);
SET_UNIPERIF_CONFIG_IDLE_MOD_DISABLE(player);
- if (UNIPERIF_PLAYER_TYPE_IS_IEC958(player)) {
+ if (UNIPERIF_TYPE_IS_IEC958(player)) {
/* Set default iec958 status bits */
/* Consumer, PCM, copyright, 2ch, mode 0 */