1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
--- a/sound/soc/s3c24xx/Kconfig
+++ b/sound/soc/s3c24xx/Kconfig
@@ -42,10 +42,20 @@ config SND_S3C24XX_SOC_JIVE_WM8750
tristate "SoC I2S Audio support for Jive"
depends on SND_S3C24XX_SOC && MACH_JIVE
select SND_SOC_WM8750
+ select SND_SOC_WM8750_SPI
select SND_S3C2412_SOC_I2S
help
Sat Y if you want to add support for SoC audio on the Jive.
+config SND_S3C24XX_SOC_NEO1973_GTA02_WM8753
+ tristate "SoC I2S Audio support for Openmoko Freerunner - WM8753"
+ depends on SND_S3C24XX_SOC && MACH_NEO1973_GTA02
+ select SND_S3C24XX_SOC_I2S
+ select SND_SOC_WM8753
+ help
+ Say Y if you want to add support for SoC audio on Openmoko Freerunner
+ with the WM8753 codec
+
config SND_S3C24XX_SOC_SMDK2443_WM9710
tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
depends on SND_S3C24XX_SOC && MACH_SMDK2443
--- a/sound/soc/s3c24xx/Makefile
+++ b/sound/soc/s3c24xx/Makefile
@@ -19,9 +19,11 @@ snd-soc-neo1973-wm8753-objs := neo1973_w
snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
+snd-soc-neo1973-gta02-wm8753-objs := gta02_wm8753.o
obj-$(CONFIG_SND_S3C24XX_SOC_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
obj-$(CONFIG_SND_S3C24XX_SOC_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
+obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
+++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
@@ -284,11 +284,14 @@ static int s3c24xx_i2s_trigger(struct sn
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!s3c24xx_snd_is_clkmaster()) {
- ret = s3c24xx_snd_lrsync();
- if (ret)
- goto exit_err;
- }
+ if (!s3c24xx_snd_is_clkmaster())
+ /* we ignore the return code, if it sync'd then fine,
+ * if it didn't sync, which happens after resume the
+ * first time when there was a live stream at suspend,
+ * just let it timeout, the stream picks up OK after
+ * that and LRCK is evidently working again.
+ */
+ s3c24xx_snd_lrsync();
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
s3c24xx_snd_rxctrl(1);
@@ -308,7 +311,6 @@ static int s3c24xx_i2s_trigger(struct sn
break;
}
-exit_err:
return ret;
}
--- a/sound/soc/s3c24xx/s3c24xx-pcm.c
+++ b/sound/soc/s3c24xx/s3c24xx-pcm.c
@@ -75,11 +75,18 @@ static void s3c24xx_pcm_enqueue(struct s
{
struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
dma_addr_t pos = prtd->dma_pos;
+ unsigned int limit;
int ret;
pr_debug("Entered %s\n", __func__);
- while (prtd->dma_loaded < prtd->dma_limit) {
+ if (s3c_dma_has_circular()) {
+ limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
+ } else
+ limit = prtd->dma_limit;
+
+
+ while (prtd->dma_loaded < limit) {
unsigned long len = prtd->dma_period;
pr_debug("dma_loaded: %d\n", prtd->dma_loaded);
@@ -123,7 +130,7 @@ static void s3c24xx_audio_buffdone(struc
snd_pcm_period_elapsed(substream);
spin_lock(&prtd->lock);
- if (prtd->state & ST_RUNNING) {
+ if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
prtd->dma_loaded--;
s3c24xx_pcm_enqueue(substream);
}
@@ -164,6 +171,11 @@ static int s3c24xx_pcm_hw_params(struct
printk(KERN_ERR "failed to get dma channel\n");
return ret;
}
+
+ /* use the circular buffering if we have it available. */
+ if (s3c_dma_has_circular())
+ s3c2410_dma_setflags(prtd->params->channel,
+ S3C2410_DMAF_CIRCULAR);
}
s3c2410_dma_set_buffdone_fn(prtd->params->channel,
@@ -218,24 +230,17 @@ static int s3c24xx_pcm_prepare(struct sn
* sync to pclk, half-word transfers to the IIS-FIFO. */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
- S3C2410_DISRCC_APB, prtd->params->dma_addr);
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_SYNC_PCLK |
- S3C2410_DCON_HANDSHAKE);
+ S3C2410_DMASRC_MEM,
+ prtd->params->dma_addr);
} else {
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_HANDSHAKE |
- S3C2410_DCON_SYNC_PCLK);
-
s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW, 0x3,
- prtd->params->dma_addr);
+ S3C2410_DMASRC_HW,
+ prtd->params->dma_addr);
}
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size);
+
/* flush the DMA channel */
s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
prtd->dma_loaded = 0;
|
