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Diffstat (limited to 'sound/soc/sh/fsi.c')
-rw-r--r--sound/soc/sh/fsi.c225
1 files changed, 130 insertions, 95 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 2b06402801ef..23c0e83d4c19 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -78,6 +78,8 @@
/* CKG1 */
#define ACKMD_MASK 0x00007000
#define BPFMD_MASK 0x00000700
+#define DIMD (1 << 4)
+#define DOMD (1 << 0)
/* A/B MST_CTLR */
#define BP (1 << 4) /* Fix the signal of Biphase output */
@@ -111,6 +113,8 @@
#define FSI_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
+typedef int (*set_rate_func)(struct device *dev, int is_porta, int rate, int enable);
+
/*
* FSI driver use below type name for variable
*
@@ -128,7 +132,6 @@ struct fsi_stream {
struct snd_pcm_substream *substream;
int fifo_max_num;
- int chan_num;
int buff_offset;
int buff_len;
@@ -143,6 +146,7 @@ struct fsi_priv {
void __iomem *base;
struct fsi_master *master;
+ int chan_num;
struct fsi_stream playback;
struct fsi_stream capture;
@@ -252,9 +256,8 @@ static struct snd_soc_dai *fsi_get_dai(struct snd_pcm_substream *substream)
return rtd->cpu_dai;
}
-static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream)
+static struct fsi_priv *fsi_get_priv_frm_dai(struct snd_soc_dai *dai)
{
- struct snd_soc_dai *dai = fsi_get_dai(substream);
struct fsi_master *master = snd_soc_dai_get_drvdata(dai);
if (dai->id == 0)
@@ -263,11 +266,27 @@ static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream)
return &master->fsib;
}
+static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream)
+{
+ return fsi_get_priv_frm_dai(fsi_get_dai(substream));
+}
+
+static set_rate_func fsi_get_info_set_rate(struct fsi_master *master)
+{
+ if (!master->info)
+ return NULL;
+
+ return master->info->set_rate;
+}
+
static u32 fsi_get_info_flags(struct fsi_priv *fsi)
{
int is_porta = fsi_is_port_a(fsi);
struct fsi_master *master = fsi_get_master(fsi);
+ if (!master->info)
+ return 0;
+
return is_porta ? master->info->porta_flags :
master->info->portb_flags;
}
@@ -288,21 +307,6 @@ static inline struct fsi_stream *fsi_get_stream(struct fsi_priv *fsi,
return is_play ? &fsi->playback : &fsi->capture;
}
-static int fsi_is_master_mode(struct fsi_priv *fsi, int is_play)
-{
- u32 mode;
- u32 flags = fsi_get_info_flags(fsi);
-
- mode = is_play ? SH_FSI_OUT_SLAVE_MODE : SH_FSI_IN_SLAVE_MODE;
-
- /* return
- * 1 : master mode
- * 0 : slave mode
- */
-
- return (mode & flags) != mode;
-}
-
static u32 fsi_get_port_shift(struct fsi_priv *fsi, int is_play)
{
int is_porta = fsi_is_port_a(fsi);
@@ -357,7 +361,6 @@ static void fsi_stream_pop(struct fsi_priv *fsi, int is_play)
static int fsi_get_fifo_data_num(struct fsi_priv *fsi, int is_play)
{
u32 status;
- struct fsi_stream *io = fsi_get_stream(fsi, is_play);
int data_num;
status = is_play ?
@@ -365,7 +368,7 @@ static int fsi_get_fifo_data_num(struct fsi_priv *fsi, int is_play)
fsi_reg_read(fsi, DIFF_ST);
data_num = 0x1ff & (status >> 8);
- data_num *= io->chan_num;
+ data_num *= fsi->chan_num;
return data_num;
}
@@ -387,7 +390,7 @@ static int fsi_get_frame_width(struct fsi_priv *fsi, int is_play)
struct snd_pcm_substream *substream = io->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
- return frames_to_bytes(runtime, 1) / io->chan_num;
+ return frames_to_bytes(runtime, 1) / fsi->chan_num;
}
static void fsi_count_fifo_err(struct fsi_priv *fsi)
@@ -580,10 +583,10 @@ static void fsi_fifo_init(struct fsi_priv *fsi,
* 7 channels: 32 ( 32 x 7 = 224)
* 8 channels: 32 ( 32 x 8 = 256)
*/
- for (i = 1; i < io->chan_num; i <<= 1)
+ for (i = 1; i < fsi->chan_num; i <<= 1)
io->fifo_max_num >>= 1;
dev_dbg(dai->dev, "%d channel %d store\n",
- io->chan_num, io->fifo_max_num);
+ fsi->chan_num, io->fifo_max_num);
/*
* set interrupt generation factor
@@ -659,7 +662,7 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream)
* data_num_max : number of FSI fifo free space
* data_num : number of ALSA residue data
*/
- data_num_max = io->fifo_max_num * io->chan_num;
+ data_num_max = io->fifo_max_num * fsi->chan_num;
data_num_max -= fsi_get_fifo_data_num(fsi, is_play);
data_num = data_residue_num;
@@ -754,25 +757,12 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct fsi_priv *fsi = fsi_get_priv(substream);
- struct fsi_master *master = fsi_get_master(fsi);
- struct fsi_stream *io;
u32 flags = fsi_get_info_flags(fsi);
- u32 fmt;
u32 data;
int is_play = fsi_is_play(substream);
- int is_master;
-
- io = fsi_get_stream(fsi, is_play);
pm_runtime_get_sync(dai->dev);
- /* CKG1 */
- data = is_play ? (1 << 0) : (1 << 4);
- is_master = fsi_is_master_mode(fsi, is_play);
- if (is_master)
- fsi_reg_mask_set(fsi, CKG1, data, data);
- else
- fsi_reg_mask_set(fsi, CKG1, data, 0);
/* clock inversion (CKG2) */
data = 0;
@@ -787,54 +777,6 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream,
fsi_reg_write(fsi, CKG2, data);
- /* do fmt, di fmt */
- data = 0;
- fmt = is_play ? SH_FSI_GET_OFMT(flags) : SH_FSI_GET_IFMT(flags);
- switch (fmt) {
- case SH_FSI_FMT_MONO:
- data = CR_MONO;
- io->chan_num = 1;
- break;
- case SH_FSI_FMT_MONO_DELAY:
- data = CR_MONO_D;
- io->chan_num = 1;
- break;
- case SH_FSI_FMT_PCM:
- data = CR_PCM;
- io->chan_num = 2;
- break;
- case SH_FSI_FMT_I2S:
- data = CR_I2S;
- io->chan_num = 2;
- break;
- case SH_FSI_FMT_TDM:
- io->chan_num = is_play ?
- SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags);
- data = CR_TDM | (io->chan_num - 1);
- break;
- case SH_FSI_FMT_TDM_DELAY:
- io->chan_num = is_play ?
- SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags);
- data = CR_TDM_D | (io->chan_num - 1);
- break;
- case SH_FSI_FMT_SPDIF:
- if (master->core->ver < 2) {
- dev_err(dai->dev, "This FSI can not use SPDIF\n");
- return -EINVAL;
- }
- data = CR_BWS_16 | CR_DTMD_SPDIF_PCM | CR_PCM;
- io->chan_num = 2;
- fsi_spdif_clk_ctrl(fsi, 1);
- fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD);
- break;
- default:
- dev_err(dai->dev, "unknown format.\n");
- return -EINVAL;
- }
- is_play ?
- fsi_reg_write(fsi, DO_FMT, data) :
- fsi_reg_write(fsi, DI_FMT, data);
-
/* irq clear */
fsi_irq_disable(fsi, is_play);
fsi_irq_clear_status(fsi);
@@ -851,12 +793,12 @@ static void fsi_dai_shutdown(struct snd_pcm_substream *substream,
struct fsi_priv *fsi = fsi_get_priv(substream);
int is_play = fsi_is_play(substream);
struct fsi_master *master = fsi_get_master(fsi);
- int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
+ set_rate_func set_rate;
fsi_irq_disable(fsi, is_play);
fsi_clk_ctrl(fsi, 0);
- set_rate = master->info->set_rate;
+ set_rate = fsi_get_info_set_rate(master);
if (set_rate && fsi->rate)
set_rate(dai->dev, fsi_is_port_a(fsi), fsi->rate, 0);
fsi->rate = 0;
@@ -889,18 +831,100 @@ static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
+static int fsi_set_fmt_dai(struct fsi_priv *fsi, unsigned int fmt)
+{
+ u32 data = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ data = CR_I2S;
+ fsi->chan_num = 2;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ data = CR_PCM;
+ fsi->chan_num = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ fsi_reg_write(fsi, DO_FMT, data);
+ fsi_reg_write(fsi, DI_FMT, data);
+
+ return 0;
+}
+
+static int fsi_set_fmt_spdif(struct fsi_priv *fsi)
+{
+ struct fsi_master *master = fsi_get_master(fsi);
+ u32 data = 0;
+
+ if (master->core->ver < 2)
+ return -EINVAL;
+
+ data = CR_BWS_16 | CR_DTMD_SPDIF_PCM | CR_PCM;
+ fsi->chan_num = 2;
+ fsi_spdif_clk_ctrl(fsi, 1);
+ fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD);
+
+ fsi_reg_write(fsi, DO_FMT, data);
+ fsi_reg_write(fsi, DI_FMT, data);
+
+ return 0;
+}
+
+static int fsi_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct fsi_priv *fsi = fsi_get_priv_frm_dai(dai);
+ u32 flags = fsi_get_info_flags(fsi);
+ u32 data = 0;
+ int ret;
+
+ pm_runtime_get_sync(dai->dev);
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ data = DIMD | DOMD;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ ret = -EINVAL;
+ goto set_fmt_exit;
+ }
+ fsi_reg_mask_set(fsi, CKG1, (DIMD | DOMD), data);
+
+ /* set format */
+ switch (flags & SH_FSI_FMT_MASK) {
+ case SH_FSI_FMT_DAI:
+ ret = fsi_set_fmt_dai(fsi, fmt & SND_SOC_DAIFMT_FORMAT_MASK);
+ break;
+ case SH_FSI_FMT_SPDIF:
+ ret = fsi_set_fmt_spdif(fsi);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+set_fmt_exit:
+ pm_runtime_put_sync(dai->dev);
+
+ return ret;
+}
+
static int fsi_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct fsi_priv *fsi = fsi_get_priv(substream);
struct fsi_master *master = fsi_get_master(fsi);
- int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
+ set_rate_func set_rate;
int fsi_ver = master->core->ver;
long rate = params_rate(params);
int ret;
- set_rate = master->info->set_rate;
+ set_rate = fsi_get_info_set_rate(master);
if (!set_rate)
return 0;
@@ -975,6 +999,7 @@ static struct snd_soc_dai_ops fsi_dai_ops = {
.startup = fsi_dai_startup,
.shutdown = fsi_dai_shutdown,
.trigger = fsi_dai_trigger,
+ .set_fmt = fsi_dai_set_fmt,
.hw_params = fsi_dai_hw_params,
};
@@ -1175,10 +1200,11 @@ static int fsi_probe(struct platform_device *pdev)
master->fsib.master = master;
pm_runtime_enable(&pdev->dev);
- pm_runtime_resume(&pdev->dev);
dev_set_drvdata(&pdev->dev, master);
+ pm_runtime_get_sync(&pdev->dev);
fsi_soft_all_reset(master);
+ pm_runtime_put_sync(&pdev->dev);
ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED,
id_entry->name, master);
@@ -1193,8 +1219,17 @@ static int fsi_probe(struct platform_device *pdev)
goto exit_free_irq;
}
- return snd_soc_register_dais(&pdev->dev, fsi_soc_dai, ARRAY_SIZE(fsi_soc_dai));
+ ret = snd_soc_register_dais(&pdev->dev, fsi_soc_dai,
+ ARRAY_SIZE(fsi_soc_dai));
+ if (ret < 0) {
+ dev_err(&pdev->dev, "cannot snd dai register\n");
+ goto exit_snd_soc;
+ }
+ return ret;
+
+exit_snd_soc:
+ snd_soc_unregister_platform(&pdev->dev);
exit_free_irq:
free_irq(irq, master);
exit_iounmap:
@@ -1213,12 +1248,11 @@ static int fsi_remove(struct platform_device *pdev)
master = dev_get_drvdata(&pdev->dev);
- snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(fsi_soc_dai));
- snd_soc_unregister_platform(&pdev->dev);
-
+ free_irq(master->irq, master);
pm_runtime_disable(&pdev->dev);
- free_irq(master->irq, master);
+ snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(fsi_soc_dai));
+ snd_soc_unregister_platform(&pdev->dev);
iounmap(master->base);
kfree(master);
@@ -1296,3 +1330,4 @@ module_exit(fsi_mobile_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SuperH onchip FSI audio driver");
MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");
+MODULE_ALIAS("platform:fsi-pcm-audio");