diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-07 20:07:31 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-07 20:07:31 -0400 |
commit | faa38b5e0e092914764cdba9f83d31a3f794d182 (patch) | |
tree | b3e5921bdc36378033b4910eb4f29cb0dfc486e0 /sound/soc/jz4740 | |
parent | 78417334b5cb6e1f915b8fdcc4fce3f1a1b4420c (diff) | |
parent | 74bf40f0793fed9e01eb6164c2ce63e8c27ca205 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (214 commits)
ALSA: hda - Add pin-fix for HP dc5750
ALSA: als4000: Fix potentially invalid DMA mode setup
ALSA: als4000: enable burst mode
ALSA: hda - Fix initial capsrc selection in patch_alc269()
ASoC: TWL4030: Capture route runtime DAPM ordering fix
ALSA: hda - Add PC-beep whitelist for an Intel board
ALSA: hda - More relax for pending period handling
ALSA: hda - Define AC_FMT_* constants
ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs
ALSA: hda - Add support for HDMI HBR passthrough
ALSA: hda - Set Stream Type in Stream Format according to AES0
ALSA: hda - Fix Thinkpad X300 so SPDIF is not exposed
ALSA: hda - FIX to not expose SPDIF on Thinkpad X301, since it does not have the ability to use SPDIF
ASoC: wm9081: fix resource reclaim in wm9081_register error path
ASoC: wm8978: fix a memory leak if a wm8978_register fail
ASoC: wm8974: fix a memory leak if another WM8974 is registered
ASoC: wm8961: fix resource reclaim in wm8961_register error path
ASoC: wm8955: fix resource reclaim in wm8955_register error path
ASoC: wm8940: fix a memory leak if wm8940_register return error
ASoC: wm8904: fix resource reclaim in wm8904_register error path
...
Diffstat (limited to 'sound/soc/jz4740')
-rw-r--r-- | sound/soc/jz4740/Kconfig | 23 | ||||
-rw-r--r-- | sound/soc/jz4740/Makefile | 13 | ||||
-rw-r--r-- | sound/soc/jz4740/jz4740-i2s.c | 540 | ||||
-rw-r--r-- | sound/soc/jz4740/jz4740-i2s.h | 18 | ||||
-rw-r--r-- | sound/soc/jz4740/jz4740-pcm.c | 373 | ||||
-rw-r--r-- | sound/soc/jz4740/jz4740-pcm.h | 22 | ||||
-rw-r--r-- | sound/soc/jz4740/qi_lb60.c | 166 |
7 files changed, 1155 insertions, 0 deletions
diff --git a/sound/soc/jz4740/Kconfig b/sound/soc/jz4740/Kconfig new file mode 100644 index 000000000000..5351cba66c9e --- /dev/null +++ b/sound/soc/jz4740/Kconfig | |||
@@ -0,0 +1,23 @@ | |||
1 | config SND_JZ4740_SOC | ||
2 | tristate "SoC Audio for Ingenic JZ4740 SoC" | ||
3 | depends on MACH_JZ4740 && SND_SOC | ||
4 | help | ||
5 | Say Y or M if you want to add support for codecs attached to | ||
6 | the JZ4740 I2S interface. You will also need to select the audio | ||
7 | interfaces to support below. | ||
8 | |||
9 | config SND_JZ4740_SOC_I2S | ||
10 | depends on SND_JZ4740_SOC | ||
11 | tristate "SoC Audio (I2S protocol) for Ingenic JZ4740 SoC" | ||
12 | help | ||
13 | Say Y if you want to use I2S protocol and I2S codec on Ingenic JZ4740 | ||
14 | based boards. | ||
15 | |||
16 | config SND_JZ4740_SOC_QI_LB60 | ||
17 | tristate "SoC Audio support for Qi LB60" | ||
18 | depends on SND_JZ4740_SOC && JZ4740_QI_LB60 | ||
19 | select SND_JZ4740_SOC_I2S | ||
20 | select SND_SOC_JZ4740_CODEC | ||
21 | help | ||
22 | Say Y if you want to add support for ASoC audio on the Qi LB60 board | ||
23 | a.k.a Qi Ben NanoNote. | ||
diff --git a/sound/soc/jz4740/Makefile b/sound/soc/jz4740/Makefile new file mode 100644 index 000000000000..be873c1b0c20 --- /dev/null +++ b/sound/soc/jz4740/Makefile | |||
@@ -0,0 +1,13 @@ | |||
1 | # | ||
2 | # Jz4740 Platform Support | ||
3 | # | ||
4 | snd-soc-jz4740-objs := jz4740-pcm.o | ||
5 | snd-soc-jz4740-i2s-objs := jz4740-i2s.o | ||
6 | |||
7 | obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o | ||
8 | obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o | ||
9 | |||
10 | # Jz4740 Machine Support | ||
11 | snd-soc-qi-lb60-objs := qi_lb60.o | ||
12 | |||
13 | obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o | ||
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c new file mode 100644 index 000000000000..eb518f0c5e01 --- /dev/null +++ b/sound/soc/jz4740/jz4740-i2s.c | |||
@@ -0,0 +1,540 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of the GNU General Public License as published by the | ||
6 | * Free Software Foundation; either version 2 of the License, or (at your | ||
7 | * option) any later version. | ||
8 | * | ||
9 | * You should have received a copy of the GNU General Public License along | ||
10 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
11 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
12 | * | ||
13 | */ | ||
14 | |||
15 | #include <linux/init.h> | ||
16 | #include <linux/io.h> | ||
17 | #include <linux/kernel.h> | ||
18 | #include <linux/module.h> | ||
19 | #include <linux/platform_device.h> | ||
20 | #include <linux/slab.h> | ||
21 | |||
22 | #include <linux/clk.h> | ||
23 | #include <linux/delay.h> | ||
24 | |||
25 | #include <linux/dma-mapping.h> | ||
26 | |||
27 | #include <sound/core.h> | ||
28 | #include <sound/pcm.h> | ||
29 | #include <sound/pcm_params.h> | ||
30 | #include <sound/soc.h> | ||
31 | #include <sound/soc-dapm.h> | ||
32 | #include <sound/initval.h> | ||
33 | |||
34 | #include "jz4740-i2s.h" | ||
35 | #include "jz4740-pcm.h" | ||
36 | |||
37 | #define JZ_REG_AIC_CONF 0x00 | ||
38 | #define JZ_REG_AIC_CTRL 0x04 | ||
39 | #define JZ_REG_AIC_I2S_FMT 0x10 | ||
40 | #define JZ_REG_AIC_FIFO_STATUS 0x14 | ||
41 | #define JZ_REG_AIC_I2S_STATUS 0x1c | ||
42 | #define JZ_REG_AIC_CLK_DIV 0x30 | ||
43 | #define JZ_REG_AIC_FIFO 0x34 | ||
44 | |||
45 | #define JZ_AIC_CONF_FIFO_RX_THRESHOLD_MASK (0xf << 12) | ||
46 | #define JZ_AIC_CONF_FIFO_TX_THRESHOLD_MASK (0xf << 8) | ||
47 | #define JZ_AIC_CONF_OVERFLOW_PLAY_LAST BIT(6) | ||
48 | #define JZ_AIC_CONF_INTERNAL_CODEC BIT(5) | ||
49 | #define JZ_AIC_CONF_I2S BIT(4) | ||
50 | #define JZ_AIC_CONF_RESET BIT(3) | ||
51 | #define JZ_AIC_CONF_BIT_CLK_MASTER BIT(2) | ||
52 | #define JZ_AIC_CONF_SYNC_CLK_MASTER BIT(1) | ||
53 | #define JZ_AIC_CONF_ENABLE BIT(0) | ||
54 | |||
55 | #define JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 12 | ||
56 | #define JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 8 | ||
57 | |||
58 | #define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK (0x7 << 19) | ||
59 | #define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK (0x7 << 16) | ||
60 | #define JZ_AIC_CTRL_ENABLE_RX_DMA BIT(15) | ||
61 | #define JZ_AIC_CTRL_ENABLE_TX_DMA BIT(14) | ||
62 | #define JZ_AIC_CTRL_MONO_TO_STEREO BIT(11) | ||
63 | #define JZ_AIC_CTRL_SWITCH_ENDIANNESS BIT(10) | ||
64 | #define JZ_AIC_CTRL_SIGNED_TO_UNSIGNED BIT(9) | ||
65 | #define JZ_AIC_CTRL_FLUSH BIT(8) | ||
66 | #define JZ_AIC_CTRL_ENABLE_ROR_INT BIT(6) | ||
67 | #define JZ_AIC_CTRL_ENABLE_TUR_INT BIT(5) | ||
68 | #define JZ_AIC_CTRL_ENABLE_RFS_INT BIT(4) | ||
69 | #define JZ_AIC_CTRL_ENABLE_TFS_INT BIT(3) | ||
70 | #define JZ_AIC_CTRL_ENABLE_LOOPBACK BIT(2) | ||
71 | #define JZ_AIC_CTRL_ENABLE_PLAYBACK BIT(1) | ||
72 | #define JZ_AIC_CTRL_ENABLE_CAPTURE BIT(0) | ||
73 | |||
74 | #define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET 19 | ||
75 | #define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET 16 | ||
76 | |||
77 | #define JZ_AIC_I2S_FMT_DISABLE_BIT_CLK BIT(12) | ||
78 | #define JZ_AIC_I2S_FMT_ENABLE_SYS_CLK BIT(4) | ||
79 | #define JZ_AIC_I2S_FMT_MSB BIT(0) | ||
80 | |||
81 | #define JZ_AIC_I2S_STATUS_BUSY BIT(2) | ||
82 | |||
83 | #define JZ_AIC_CLK_DIV_MASK 0xf | ||
84 | |||
85 | struct jz4740_i2s { | ||
86 | struct resource *mem; | ||
87 | void __iomem *base; | ||
88 | dma_addr_t phys_base; | ||
89 | |||
90 | struct clk *clk_aic; | ||
91 | struct clk *clk_i2s; | ||
92 | |||
93 | struct jz4740_pcm_config pcm_config_playback; | ||
94 | struct jz4740_pcm_config pcm_config_capture; | ||
95 | }; | ||
96 | |||
97 | static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s, | ||
98 | unsigned int reg) | ||
99 | { | ||
100 | return readl(i2s->base + reg); | ||
101 | } | ||
102 | |||
103 | static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s, | ||
104 | unsigned int reg, uint32_t value) | ||
105 | { | ||
106 | writel(value, i2s->base + reg); | ||
107 | } | ||
108 | |||
109 | static inline struct jz4740_i2s *jz4740_dai_to_i2s(struct snd_soc_dai *dai) | ||
110 | { | ||
111 | return dai->private_data; | ||
112 | } | ||
113 | |||
114 | static int jz4740_i2s_startup(struct snd_pcm_substream *substream, | ||
115 | struct snd_soc_dai *dai) | ||
116 | { | ||
117 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
118 | uint32_t conf, ctrl; | ||
119 | |||
120 | if (dai->active) | ||
121 | return 0; | ||
122 | |||
123 | ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); | ||
124 | ctrl |= JZ_AIC_CTRL_FLUSH; | ||
125 | jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); | ||
126 | |||
127 | clk_enable(i2s->clk_i2s); | ||
128 | |||
129 | conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); | ||
130 | conf |= JZ_AIC_CONF_ENABLE; | ||
131 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
132 | |||
133 | return 0; | ||
134 | } | ||
135 | |||
136 | static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream, | ||
137 | struct snd_soc_dai *dai) | ||
138 | { | ||
139 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
140 | uint32_t conf; | ||
141 | |||
142 | if (!dai->active) | ||
143 | return; | ||
144 | |||
145 | conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); | ||
146 | conf &= ~JZ_AIC_CONF_ENABLE; | ||
147 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
148 | |||
149 | clk_disable(i2s->clk_i2s); | ||
150 | } | ||
151 | |||
152 | static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd, | ||
153 | struct snd_soc_dai *dai) | ||
154 | { | ||
155 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
156 | |||
157 | uint32_t ctrl; | ||
158 | uint32_t mask; | ||
159 | |||
160 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | ||
161 | mask = JZ_AIC_CTRL_ENABLE_PLAYBACK | JZ_AIC_CTRL_ENABLE_TX_DMA; | ||
162 | else | ||
163 | mask = JZ_AIC_CTRL_ENABLE_CAPTURE | JZ_AIC_CTRL_ENABLE_RX_DMA; | ||
164 | |||
165 | ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); | ||
166 | |||
167 | switch (cmd) { | ||
168 | case SNDRV_PCM_TRIGGER_START: | ||
169 | case SNDRV_PCM_TRIGGER_RESUME: | ||
170 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | ||
171 | ctrl |= mask; | ||
172 | break; | ||
173 | case SNDRV_PCM_TRIGGER_STOP: | ||
174 | case SNDRV_PCM_TRIGGER_SUSPEND: | ||
175 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | ||
176 | ctrl &= ~mask; | ||
177 | break; | ||
178 | default: | ||
179 | return -EINVAL; | ||
180 | } | ||
181 | |||
182 | jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); | ||
183 | |||
184 | return 0; | ||
185 | } | ||
186 | |||
187 | static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | ||
188 | { | ||
189 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
190 | |||
191 | uint32_t format = 0; | ||
192 | uint32_t conf; | ||
193 | |||
194 | conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); | ||
195 | |||
196 | conf &= ~(JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER); | ||
197 | |||
198 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | ||
199 | case SND_SOC_DAIFMT_CBS_CFS: | ||
200 | conf |= JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER; | ||
201 | format |= JZ_AIC_I2S_FMT_ENABLE_SYS_CLK; | ||
202 | break; | ||
203 | case SND_SOC_DAIFMT_CBM_CFS: | ||
204 | conf |= JZ_AIC_CONF_SYNC_CLK_MASTER; | ||
205 | break; | ||
206 | case SND_SOC_DAIFMT_CBS_CFM: | ||
207 | conf |= JZ_AIC_CONF_BIT_CLK_MASTER; | ||
208 | break; | ||
209 | case SND_SOC_DAIFMT_CBM_CFM: | ||
210 | break; | ||
211 | default: | ||
212 | return -EINVAL; | ||
213 | } | ||
214 | |||
215 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | ||
216 | case SND_SOC_DAIFMT_MSB: | ||
217 | format |= JZ_AIC_I2S_FMT_MSB; | ||
218 | break; | ||
219 | case SND_SOC_DAIFMT_I2S: | ||
220 | break; | ||
221 | default: | ||
222 | return -EINVAL; | ||
223 | } | ||
224 | |||
225 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | ||
226 | case SND_SOC_DAIFMT_NB_NF: | ||
227 | break; | ||
228 | default: | ||
229 | return -EINVAL; | ||
230 | } | ||
231 | |||
232 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
233 | jz4740_i2s_write(i2s, JZ_REG_AIC_I2S_FMT, format); | ||
234 | |||
235 | return 0; | ||
236 | } | ||
237 | |||
238 | static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream, | ||
239 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) | ||
240 | { | ||
241 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
242 | enum jz4740_dma_width dma_width; | ||
243 | struct jz4740_pcm_config *pcm_config; | ||
244 | unsigned int sample_size; | ||
245 | uint32_t ctrl; | ||
246 | |||
247 | ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); | ||
248 | |||
249 | switch (params_format(params)) { | ||
250 | case SNDRV_PCM_FORMAT_S8: | ||
251 | sample_size = 0; | ||
252 | dma_width = JZ4740_DMA_WIDTH_8BIT; | ||
253 | break; | ||
254 | case SNDRV_PCM_FORMAT_S16: | ||
255 | sample_size = 1; | ||
256 | dma_width = JZ4740_DMA_WIDTH_16BIT; | ||
257 | break; | ||
258 | default: | ||
259 | return -EINVAL; | ||
260 | } | ||
261 | |||
262 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | ||
263 | ctrl &= ~JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK; | ||
264 | ctrl |= sample_size << JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET; | ||
265 | if (params_channels(params) == 1) | ||
266 | ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO; | ||
267 | else | ||
268 | ctrl &= ~JZ_AIC_CTRL_MONO_TO_STEREO; | ||
269 | |||
270 | pcm_config = &i2s->pcm_config_playback; | ||
271 | pcm_config->dma_config.dst_width = dma_width; | ||
272 | |||
273 | } else { | ||
274 | ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK; | ||
275 | ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET; | ||
276 | |||
277 | pcm_config = &i2s->pcm_config_capture; | ||
278 | pcm_config->dma_config.src_width = dma_width; | ||
279 | } | ||
280 | |||
281 | jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); | ||
282 | |||
283 | snd_soc_dai_set_dma_data(dai, substream, pcm_config); | ||
284 | |||
285 | return 0; | ||
286 | } | ||
287 | |||
288 | static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, | ||
289 | unsigned int freq, int dir) | ||
290 | { | ||
291 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
292 | struct clk *parent; | ||
293 | int ret = 0; | ||
294 | |||
295 | switch (clk_id) { | ||
296 | case JZ4740_I2S_CLKSRC_EXT: | ||
297 | parent = clk_get(NULL, "ext"); | ||
298 | clk_set_parent(i2s->clk_i2s, parent); | ||
299 | break; | ||
300 | case JZ4740_I2S_CLKSRC_PLL: | ||
301 | parent = clk_get(NULL, "pll half"); | ||
302 | clk_set_parent(i2s->clk_i2s, parent); | ||
303 | ret = clk_set_rate(i2s->clk_i2s, freq); | ||
304 | break; | ||
305 | default: | ||
306 | return -EINVAL; | ||
307 | } | ||
308 | clk_put(parent); | ||
309 | |||
310 | return ret; | ||
311 | } | ||
312 | |||
313 | static int jz4740_i2s_suspend(struct snd_soc_dai *dai) | ||
314 | { | ||
315 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
316 | uint32_t conf; | ||
317 | |||
318 | if (dai->active) { | ||
319 | conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); | ||
320 | conf &= ~JZ_AIC_CONF_ENABLE; | ||
321 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
322 | |||
323 | clk_disable(i2s->clk_i2s); | ||
324 | } | ||
325 | |||
326 | clk_disable(i2s->clk_aic); | ||
327 | |||
328 | return 0; | ||
329 | } | ||
330 | |||
331 | static int jz4740_i2s_resume(struct snd_soc_dai *dai) | ||
332 | { | ||
333 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
334 | uint32_t conf; | ||
335 | |||
336 | clk_enable(i2s->clk_aic); | ||
337 | |||
338 | if (dai->active) { | ||
339 | clk_enable(i2s->clk_i2s); | ||
340 | |||
341 | conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); | ||
342 | conf |= JZ_AIC_CONF_ENABLE; | ||
343 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
344 | } | ||
345 | |||
346 | return 0; | ||
347 | } | ||
348 | |||
349 | static int jz4740_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai) | ||
350 | { | ||
351 | struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); | ||
352 | uint32_t conf; | ||
353 | |||
354 | conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) | | ||
355 | (8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) | | ||
356 | JZ_AIC_CONF_OVERFLOW_PLAY_LAST | | ||
357 | JZ_AIC_CONF_I2S | | ||
358 | JZ_AIC_CONF_INTERNAL_CODEC; | ||
359 | |||
360 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, JZ_AIC_CONF_RESET); | ||
361 | jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); | ||
362 | |||
363 | return 0; | ||
364 | } | ||
365 | |||
366 | static struct snd_soc_dai_ops jz4740_i2s_dai_ops = { | ||
367 | .startup = jz4740_i2s_startup, | ||
368 | .shutdown = jz4740_i2s_shutdown, | ||
369 | .trigger = jz4740_i2s_trigger, | ||
370 | .hw_params = jz4740_i2s_hw_params, | ||
371 | .set_fmt = jz4740_i2s_set_fmt, | ||
372 | .set_sysclk = jz4740_i2s_set_sysclk, | ||
373 | }; | ||
374 | |||
375 | #define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \ | ||
376 | SNDRV_PCM_FMTBIT_S16_LE) | ||
377 | |||
378 | struct snd_soc_dai jz4740_i2s_dai = { | ||
379 | .name = "jz4740-i2s", | ||
380 | .probe = jz4740_i2s_probe, | ||
381 | .playback = { | ||
382 | .channels_min = 1, | ||
383 | .channels_max = 2, | ||
384 | .rates = SNDRV_PCM_RATE_8000_48000, | ||
385 | .formats = JZ4740_I2S_FMTS, | ||
386 | }, | ||
387 | .capture = { | ||
388 | .channels_min = 2, | ||
389 | .channels_max = 2, | ||
390 | .rates = SNDRV_PCM_RATE_8000_48000, | ||
391 | .formats = JZ4740_I2S_FMTS, | ||
392 | }, | ||
393 | .symmetric_rates = 1, | ||
394 | .ops = &jz4740_i2s_dai_ops, | ||
395 | .suspend = jz4740_i2s_suspend, | ||
396 | .resume = jz4740_i2s_resume, | ||
397 | }; | ||
398 | EXPORT_SYMBOL_GPL(jz4740_i2s_dai); | ||
399 | |||
400 | static void __devinit jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s) | ||
401 | { | ||
402 | struct jz4740_dma_config *dma_config; | ||
403 | |||
404 | /* Playback */ | ||
405 | dma_config = &i2s->pcm_config_playback.dma_config; | ||
406 | dma_config->src_width = JZ4740_DMA_WIDTH_32BIT, | ||
407 | dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE; | ||
408 | dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT; | ||
409 | dma_config->flags = JZ4740_DMA_SRC_AUTOINC; | ||
410 | dma_config->mode = JZ4740_DMA_MODE_SINGLE; | ||
411 | i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO; | ||
412 | |||
413 | /* Capture */ | ||
414 | dma_config = &i2s->pcm_config_capture.dma_config; | ||
415 | dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT, | ||
416 | dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE; | ||
417 | dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE; | ||
418 | dma_config->flags = JZ4740_DMA_DST_AUTOINC; | ||
419 | dma_config->mode = JZ4740_DMA_MODE_SINGLE; | ||
420 | i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO; | ||
421 | } | ||
422 | |||
423 | static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev) | ||
424 | { | ||
425 | struct jz4740_i2s *i2s; | ||
426 | int ret; | ||
427 | |||
428 | i2s = kzalloc(sizeof(*i2s), GFP_KERNEL); | ||
429 | |||
430 | if (!i2s) | ||
431 | return -ENOMEM; | ||
432 | |||
433 | i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
434 | if (!i2s->mem) { | ||
435 | ret = -ENOENT; | ||
436 | goto err_free; | ||
437 | } | ||
438 | |||
439 | i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem), | ||
440 | pdev->name); | ||
441 | if (!i2s->mem) { | ||
442 | ret = -EBUSY; | ||
443 | goto err_free; | ||
444 | } | ||
445 | |||
446 | i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem)); | ||
447 | if (!i2s->base) { | ||
448 | ret = -EBUSY; | ||
449 | goto err_release_mem_region; | ||
450 | } | ||
451 | |||
452 | i2s->phys_base = i2s->mem->start; | ||
453 | |||
454 | i2s->clk_aic = clk_get(&pdev->dev, "aic"); | ||
455 | if (IS_ERR(i2s->clk_aic)) { | ||
456 | ret = PTR_ERR(i2s->clk_aic); | ||
457 | goto err_iounmap; | ||
458 | } | ||
459 | |||
460 | i2s->clk_i2s = clk_get(&pdev->dev, "i2s"); | ||
461 | if (IS_ERR(i2s->clk_i2s)) { | ||
462 | ret = PTR_ERR(i2s->clk_i2s); | ||
463 | goto err_clk_put_aic; | ||
464 | } | ||
465 | |||
466 | clk_enable(i2s->clk_aic); | ||
467 | |||
468 | jz4740_i2c_init_pcm_config(i2s); | ||
469 | |||
470 | jz4740_i2s_dai.private_data = i2s; | ||
471 | ret = snd_soc_register_dai(&jz4740_i2s_dai); | ||
472 | |||
473 | if (ret) { | ||
474 | dev_err(&pdev->dev, "Failed to register DAI\n"); | ||
475 | goto err_clk_put_i2s; | ||
476 | } | ||
477 | |||
478 | platform_set_drvdata(pdev, i2s); | ||
479 | |||
480 | return 0; | ||
481 | |||
482 | err_clk_put_i2s: | ||
483 | clk_disable(i2s->clk_aic); | ||
484 | clk_put(i2s->clk_i2s); | ||
485 | err_clk_put_aic: | ||
486 | clk_put(i2s->clk_aic); | ||
487 | err_iounmap: | ||
488 | iounmap(i2s->base); | ||
489 | err_release_mem_region: | ||
490 | release_mem_region(i2s->mem->start, resource_size(i2s->mem)); | ||
491 | err_free: | ||
492 | kfree(i2s); | ||
493 | |||
494 | return ret; | ||
495 | } | ||
496 | |||
497 | static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev) | ||
498 | { | ||
499 | struct jz4740_i2s *i2s = platform_get_drvdata(pdev); | ||
500 | |||
501 | snd_soc_unregister_dai(&jz4740_i2s_dai); | ||
502 | |||
503 | clk_disable(i2s->clk_aic); | ||
504 | clk_put(i2s->clk_i2s); | ||
505 | clk_put(i2s->clk_aic); | ||
506 | |||
507 | iounmap(i2s->base); | ||
508 | release_mem_region(i2s->mem->start, resource_size(i2s->mem)); | ||
509 | |||
510 | platform_set_drvdata(pdev, NULL); | ||
511 | kfree(i2s); | ||
512 | |||
513 | return 0; | ||
514 | } | ||
515 | |||
516 | static struct platform_driver jz4740_i2s_driver = { | ||
517 | .probe = jz4740_i2s_dev_probe, | ||
518 | .remove = __devexit_p(jz4740_i2s_dev_remove), | ||
519 | .driver = { | ||
520 | .name = "jz4740-i2s", | ||
521 | .owner = THIS_MODULE, | ||
522 | }, | ||
523 | }; | ||
524 | |||
525 | static int __init jz4740_i2s_init(void) | ||
526 | { | ||
527 | return platform_driver_register(&jz4740_i2s_driver); | ||
528 | } | ||
529 | module_init(jz4740_i2s_init); | ||
530 | |||
531 | static void __exit jz4740_i2s_exit(void) | ||
532 | { | ||
533 | platform_driver_unregister(&jz4740_i2s_driver); | ||
534 | } | ||
535 | module_exit(jz4740_i2s_exit); | ||
536 | |||
537 | MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>"); | ||
538 | MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver"); | ||
539 | MODULE_LICENSE("GPL"); | ||
540 | MODULE_ALIAS("platform:jz4740-i2s"); | ||
diff --git a/sound/soc/jz4740/jz4740-i2s.h b/sound/soc/jz4740/jz4740-i2s.h new file mode 100644 index 000000000000..da22ed88a589 --- /dev/null +++ b/sound/soc/jz4740/jz4740-i2s.h | |||
@@ -0,0 +1,18 @@ | |||
1 | /* | ||
2 | * This program is free software; you can redistribute it and/or modify | ||
3 | * it under the terms of the GNU General Public License version 2 as | ||
4 | * published by the Free Software Foundation. | ||
5 | */ | ||
6 | |||
7 | #ifndef _JZ4740_I2S_H | ||
8 | #define _JZ4740_I2S_H | ||
9 | |||
10 | /* I2S clock source */ | ||
11 | #define JZ4740_I2S_CLKSRC_EXT 0 | ||
12 | #define JZ4740_I2S_CLKSRC_PLL 1 | ||
13 | |||
14 | #define JZ4740_I2S_BIT_CLK 0 | ||
15 | |||
16 | extern struct snd_soc_dai jz4740_i2s_dai; | ||
17 | |||
18 | #endif | ||
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c new file mode 100644 index 000000000000..ee68d850c8dd --- /dev/null +++ b/sound/soc/jz4740/jz4740-pcm.c | |||
@@ -0,0 +1,373 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of the GNU General Public License as published by the | ||
6 | * Free Software Foundation; either version 2 of the License, or (at your | ||
7 | * option) any later version. | ||
8 | * | ||
9 | * You should have received a copy of the GNU General Public License along | ||
10 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
11 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
12 | * | ||
13 | */ | ||
14 | |||
15 | #include <linux/init.h> | ||
16 | #include <linux/interrupt.h> | ||
17 | #include <linux/kernel.h> | ||
18 | #include <linux/module.h> | ||
19 | #include <linux/platform_device.h> | ||
20 | #include <linux/slab.h> | ||
21 | |||
22 | #include <linux/dma-mapping.h> | ||
23 | |||
24 | #include <sound/core.h> | ||
25 | #include <sound/pcm.h> | ||
26 | #include <sound/pcm_params.h> | ||
27 | #include <sound/soc.h> | ||
28 | |||
29 | #include <asm/mach-jz4740/dma.h> | ||
30 | #include "jz4740-pcm.h" | ||
31 | |||
32 | struct jz4740_runtime_data { | ||
33 | unsigned long dma_period; | ||
34 | dma_addr_t dma_start; | ||
35 | dma_addr_t dma_pos; | ||
36 | dma_addr_t dma_end; | ||
37 | |||
38 | struct jz4740_dma_chan *dma; | ||
39 | |||
40 | dma_addr_t fifo_addr; | ||
41 | }; | ||
42 | |||
43 | /* identify hardware playback capabilities */ | ||
44 | static const struct snd_pcm_hardware jz4740_pcm_hardware = { | ||
45 | .info = SNDRV_PCM_INFO_MMAP | | ||
46 | SNDRV_PCM_INFO_MMAP_VALID | | ||
47 | SNDRV_PCM_INFO_INTERLEAVED | | ||
48 | SNDRV_PCM_INFO_BLOCK_TRANSFER, | ||
49 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, | ||
50 | |||
51 | .rates = SNDRV_PCM_RATE_8000_48000, | ||
52 | .channels_min = 1, | ||
53 | .channels_max = 2, | ||
54 | .period_bytes_min = 16, | ||
55 | .period_bytes_max = 2 * PAGE_SIZE, | ||
56 | .periods_min = 2, | ||
57 | .periods_max = 128, | ||
58 | .buffer_bytes_max = 128 * 2 * PAGE_SIZE, | ||
59 | .fifo_size = 32, | ||
60 | }; | ||
61 | |||
62 | static void jz4740_pcm_start_transfer(struct jz4740_runtime_data *prtd, | ||
63 | struct snd_pcm_substream *substream) | ||
64 | { | ||
65 | unsigned long count; | ||
66 | |||
67 | if (prtd->dma_pos == prtd->dma_end) | ||
68 | prtd->dma_pos = prtd->dma_start; | ||
69 | |||
70 | if (prtd->dma_pos + prtd->dma_period > prtd->dma_end) | ||
71 | count = prtd->dma_end - prtd->dma_pos; | ||
72 | else | ||
73 | count = prtd->dma_period; | ||
74 | |||
75 | jz4740_dma_disable(prtd->dma); | ||
76 | |||
77 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | ||
78 | jz4740_dma_set_src_addr(prtd->dma, prtd->dma_pos); | ||
79 | jz4740_dma_set_dst_addr(prtd->dma, prtd->fifo_addr); | ||
80 | } else { | ||
81 | jz4740_dma_set_src_addr(prtd->dma, prtd->fifo_addr); | ||
82 | jz4740_dma_set_dst_addr(prtd->dma, prtd->dma_pos); | ||
83 | } | ||
84 | |||
85 | jz4740_dma_set_transfer_count(prtd->dma, count); | ||
86 | |||
87 | prtd->dma_pos += count; | ||
88 | |||
89 | jz4740_dma_enable(prtd->dma); | ||
90 | } | ||
91 | |||
92 | static void jz4740_pcm_dma_transfer_done(struct jz4740_dma_chan *dma, int err, | ||
93 | void *dev_id) | ||
94 | { | ||
95 | struct snd_pcm_substream *substream = dev_id; | ||
96 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
97 | struct jz4740_runtime_data *prtd = runtime->private_data; | ||
98 | |||
99 | snd_pcm_period_elapsed(substream); | ||
100 | |||
101 | jz4740_pcm_start_transfer(prtd, substream); | ||
102 | } | ||
103 | |||
104 | static int jz4740_pcm_hw_params(struct snd_pcm_substream *substream, | ||
105 | struct snd_pcm_hw_params *params) | ||
106 | { | ||
107 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
108 | struct jz4740_runtime_data *prtd = runtime->private_data; | ||
109 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
110 | struct jz4740_pcm_config *config; | ||
111 | |||
112 | config = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream); | ||
113 | |||
114 | if (!config) | ||
115 | return 0; | ||
116 | |||
117 | if (!prtd->dma) { | ||
118 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) | ||
119 | prtd->dma = jz4740_dma_request(substream, "PCM Capture"); | ||
120 | else | ||
121 | prtd->dma = jz4740_dma_request(substream, "PCM Playback"); | ||
122 | } | ||
123 | |||
124 | if (!prtd->dma) | ||
125 | return -EBUSY; | ||
126 | |||
127 | jz4740_dma_configure(prtd->dma, &config->dma_config); | ||
128 | prtd->fifo_addr = config->fifo_addr; | ||
129 | |||
130 | jz4740_dma_set_complete_cb(prtd->dma, jz4740_pcm_dma_transfer_done); | ||
131 | |||
132 | snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); | ||
133 | runtime->dma_bytes = params_buffer_bytes(params); | ||
134 | |||
135 | prtd->dma_period = params_period_bytes(params); | ||
136 | prtd->dma_start = runtime->dma_addr; | ||
137 | prtd->dma_pos = prtd->dma_start; | ||
138 | prtd->dma_end = prtd->dma_start + runtime->dma_bytes; | ||
139 | |||
140 | return 0; | ||
141 | } | ||
142 | |||
143 | static int jz4740_pcm_hw_free(struct snd_pcm_substream *substream) | ||
144 | { | ||
145 | struct jz4740_runtime_data *prtd = substream->runtime->private_data; | ||
146 | |||
147 | snd_pcm_set_runtime_buffer(substream, NULL); | ||
148 | if (prtd->dma) { | ||
149 | jz4740_dma_free(prtd->dma); | ||
150 | prtd->dma = NULL; | ||
151 | } | ||
152 | |||
153 | return 0; | ||
154 | } | ||
155 | |||
156 | static int jz4740_pcm_prepare(struct snd_pcm_substream *substream) | ||
157 | { | ||
158 | struct jz4740_runtime_data *prtd = substream->runtime->private_data; | ||
159 | |||
160 | if (!prtd->dma) | ||
161 | return -EBUSY; | ||
162 | |||
163 | prtd->dma_pos = prtd->dma_start; | ||
164 | |||
165 | return 0; | ||
166 | } | ||
167 | |||
168 | static int jz4740_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | ||
169 | { | ||
170 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
171 | struct jz4740_runtime_data *prtd = runtime->private_data; | ||
172 | |||
173 | switch (cmd) { | ||
174 | case SNDRV_PCM_TRIGGER_START: | ||
175 | case SNDRV_PCM_TRIGGER_RESUME: | ||
176 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | ||
177 | jz4740_pcm_start_transfer(prtd, substream); | ||
178 | break; | ||
179 | case SNDRV_PCM_TRIGGER_STOP: | ||
180 | case SNDRV_PCM_TRIGGER_SUSPEND: | ||
181 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | ||
182 | jz4740_dma_disable(prtd->dma); | ||
183 | break; | ||
184 | default: | ||
185 | break; | ||
186 | } | ||
187 | |||
188 | return 0; | ||
189 | } | ||
190 | |||
191 | static snd_pcm_uframes_t jz4740_pcm_pointer(struct snd_pcm_substream *substream) | ||
192 | { | ||
193 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
194 | struct jz4740_runtime_data *prtd = runtime->private_data; | ||
195 | unsigned long byte_offset; | ||
196 | snd_pcm_uframes_t offset; | ||
197 | struct jz4740_dma_chan *dma = prtd->dma; | ||
198 | |||
199 | /* prtd->dma_pos points to the end of the current transfer. So by | ||
200 | * subtracting prdt->dma_start we get the offset to the end of the | ||
201 | * current period in bytes. By subtracting the residue of the transfer | ||
202 | * we get the current offset in bytes. */ | ||
203 | byte_offset = prtd->dma_pos - prtd->dma_start; | ||
204 | byte_offset -= jz4740_dma_get_residue(dma); | ||
205 | |||
206 | offset = bytes_to_frames(runtime, byte_offset); | ||
207 | if (offset >= runtime->buffer_size) | ||
208 | offset = 0; | ||
209 | |||
210 | return offset; | ||
211 | } | ||
212 | |||
213 | static int jz4740_pcm_open(struct snd_pcm_substream *substream) | ||
214 | { | ||
215 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
216 | struct jz4740_runtime_data *prtd; | ||
217 | |||
218 | prtd = kzalloc(sizeof(*prtd), GFP_KERNEL); | ||
219 | if (prtd == NULL) | ||
220 | return -ENOMEM; | ||
221 | |||
222 | snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware); | ||
223 | |||
224 | runtime->private_data = prtd; | ||
225 | |||
226 | return 0; | ||
227 | } | ||
228 | |||
229 | static int jz4740_pcm_close(struct snd_pcm_substream *substream) | ||
230 | { | ||
231 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
232 | struct jz4740_runtime_data *prtd = runtime->private_data; | ||
233 | |||
234 | kfree(prtd); | ||
235 | |||
236 | return 0; | ||
237 | } | ||
238 | |||
239 | static int jz4740_pcm_mmap(struct snd_pcm_substream *substream, | ||
240 | struct vm_area_struct *vma) | ||
241 | { | ||
242 | return remap_pfn_range(vma, vma->vm_start, | ||
243 | substream->dma_buffer.addr >> PAGE_SHIFT, | ||
244 | vma->vm_end - vma->vm_start, vma->vm_page_prot); | ||
245 | } | ||
246 | |||
247 | static struct snd_pcm_ops jz4740_pcm_ops = { | ||
248 | .open = jz4740_pcm_open, | ||
249 | .close = jz4740_pcm_close, | ||
250 | .ioctl = snd_pcm_lib_ioctl, | ||
251 | .hw_params = jz4740_pcm_hw_params, | ||
252 | .hw_free = jz4740_pcm_hw_free, | ||
253 | .prepare = jz4740_pcm_prepare, | ||
254 | .trigger = jz4740_pcm_trigger, | ||
255 | .pointer = jz4740_pcm_pointer, | ||
256 | .mmap = jz4740_pcm_mmap, | ||
257 | }; | ||
258 | |||
259 | static int jz4740_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) | ||
260 | { | ||
261 | struct snd_pcm_substream *substream = pcm->streams[stream].substream; | ||
262 | struct snd_dma_buffer *buf = &substream->dma_buffer; | ||
263 | size_t size = jz4740_pcm_hardware.buffer_bytes_max; | ||
264 | |||
265 | buf->dev.type = SNDRV_DMA_TYPE_DEV; | ||
266 | buf->dev.dev = pcm->card->dev; | ||
267 | buf->private_data = NULL; | ||
268 | |||
269 | buf->area = dma_alloc_noncoherent(pcm->card->dev, size, | ||
270 | &buf->addr, GFP_KERNEL); | ||
271 | if (!buf->area) | ||
272 | return -ENOMEM; | ||
273 | |||
274 | buf->bytes = size; | ||
275 | |||
276 | return 0; | ||
277 | } | ||
278 | |||
279 | static void jz4740_pcm_free(struct snd_pcm *pcm) | ||
280 | { | ||
281 | struct snd_pcm_substream *substream; | ||
282 | struct snd_dma_buffer *buf; | ||
283 | int stream; | ||
284 | |||
285 | for (stream = 0; stream < SNDRV_PCM_STREAM_LAST; ++stream) { | ||
286 | substream = pcm->streams[stream].substream; | ||
287 | if (!substream) | ||
288 | continue; | ||
289 | |||
290 | buf = &substream->dma_buffer; | ||
291 | if (!buf->area) | ||
292 | continue; | ||
293 | |||
294 | dma_free_noncoherent(pcm->card->dev, buf->bytes, buf->area, | ||
295 | buf->addr); | ||
296 | buf->area = NULL; | ||
297 | } | ||
298 | } | ||
299 | |||
300 | static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32); | ||
301 | |||
302 | int jz4740_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, | ||
303 | struct snd_pcm *pcm) | ||
304 | { | ||
305 | int ret = 0; | ||
306 | |||
307 | if (!card->dev->dma_mask) | ||
308 | card->dev->dma_mask = &jz4740_pcm_dmamask; | ||
309 | |||
310 | if (!card->dev->coherent_dma_mask) | ||
311 | card->dev->coherent_dma_mask = DMA_BIT_MASK(32); | ||
312 | |||
313 | if (dai->playback.channels_min) { | ||
314 | ret = jz4740_pcm_preallocate_dma_buffer(pcm, | ||
315 | SNDRV_PCM_STREAM_PLAYBACK); | ||
316 | if (ret) | ||
317 | goto err; | ||
318 | } | ||
319 | |||
320 | if (dai->capture.channels_min) { | ||
321 | ret = jz4740_pcm_preallocate_dma_buffer(pcm, | ||
322 | SNDRV_PCM_STREAM_CAPTURE); | ||
323 | if (ret) | ||
324 | goto err; | ||
325 | } | ||
326 | |||
327 | err: | ||
328 | return ret; | ||
329 | } | ||
330 | |||
331 | struct snd_soc_platform jz4740_soc_platform = { | ||
332 | .name = "jz4740-pcm", | ||
333 | .pcm_ops = &jz4740_pcm_ops, | ||
334 | .pcm_new = jz4740_pcm_new, | ||
335 | .pcm_free = jz4740_pcm_free, | ||
336 | }; | ||
337 | EXPORT_SYMBOL_GPL(jz4740_soc_platform); | ||
338 | |||
339 | static int __devinit jz4740_pcm_probe(struct platform_device *pdev) | ||
340 | { | ||
341 | return snd_soc_register_platform(&jz4740_soc_platform); | ||
342 | } | ||
343 | |||
344 | static int __devexit jz4740_pcm_remove(struct platform_device *pdev) | ||
345 | { | ||
346 | snd_soc_unregister_platform(&jz4740_soc_platform); | ||
347 | return 0; | ||
348 | } | ||
349 | |||
350 | static struct platform_driver jz4740_pcm_driver = { | ||
351 | .probe = jz4740_pcm_probe, | ||
352 | .remove = __devexit_p(jz4740_pcm_remove), | ||
353 | .driver = { | ||
354 | .name = "jz4740-pcm", | ||
355 | .owner = THIS_MODULE, | ||
356 | }, | ||
357 | }; | ||
358 | |||
359 | static int __init jz4740_soc_platform_init(void) | ||
360 | { | ||
361 | return platform_driver_register(&jz4740_pcm_driver); | ||
362 | } | ||
363 | module_init(jz4740_soc_platform_init); | ||
364 | |||
365 | static void __exit jz4740_soc_platform_exit(void) | ||
366 | { | ||
367 | return platform_driver_unregister(&jz4740_pcm_driver); | ||
368 | } | ||
369 | module_exit(jz4740_soc_platform_exit); | ||
370 | |||
371 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | ||
372 | MODULE_DESCRIPTION("Ingenic SoC JZ4740 PCM driver"); | ||
373 | MODULE_LICENSE("GPL"); | ||
diff --git a/sound/soc/jz4740/jz4740-pcm.h b/sound/soc/jz4740/jz4740-pcm.h new file mode 100644 index 000000000000..e3f221e2779c --- /dev/null +++ b/sound/soc/jz4740/jz4740-pcm.h | |||
@@ -0,0 +1,22 @@ | |||
1 | /* | ||
2 | * | ||
3 | * This program is free software; you can redistribute it and/or modify | ||
4 | * it under the terms of the GNU General Public License version 2 as | ||
5 | * published by the Free Software Foundation. | ||
6 | */ | ||
7 | |||
8 | #ifndef _JZ4740_PCM_H | ||
9 | #define _JZ4740_PCM_H | ||
10 | |||
11 | #include <linux/dma-mapping.h> | ||
12 | #include <asm/mach-jz4740/dma.h> | ||
13 | |||
14 | /* platform data */ | ||
15 | extern struct snd_soc_platform jz4740_soc_platform; | ||
16 | |||
17 | struct jz4740_pcm_config { | ||
18 | struct jz4740_dma_config dma_config; | ||
19 | phys_addr_t fifo_addr; | ||
20 | }; | ||
21 | |||
22 | #endif | ||
diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c new file mode 100644 index 000000000000..f15f4918f15f --- /dev/null +++ b/sound/soc/jz4740/qi_lb60.c | |||
@@ -0,0 +1,166 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de> | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License version 2 as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * You should have received a copy of the GNU General Public License along | ||
9 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
10 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | #include <linux/module.h> | ||
15 | #include <linux/moduleparam.h> | ||
16 | #include <linux/timer.h> | ||
17 | #include <linux/interrupt.h> | ||
18 | #include <linux/platform_device.h> | ||
19 | #include <sound/core.h> | ||
20 | #include <sound/pcm.h> | ||
21 | #include <sound/soc.h> | ||
22 | #include <sound/soc-dapm.h> | ||
23 | #include <linux/gpio.h> | ||
24 | |||
25 | #include "../codecs/jz4740.h" | ||
26 | #include "jz4740-pcm.h" | ||
27 | #include "jz4740-i2s.h" | ||
28 | |||
29 | |||
30 | #define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29) | ||
31 | #define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4) | ||
32 | |||
33 | static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, | ||
34 | struct snd_kcontrol *ctrl, int event) | ||
35 | { | ||
36 | int on = 0; | ||
37 | if (event & SND_SOC_DAPM_POST_PMU) | ||
38 | on = 1; | ||
39 | else if (event & SND_SOC_DAPM_PRE_PMD) | ||
40 | on = 0; | ||
41 | |||
42 | gpio_set_value(QI_LB60_SND_GPIO, on); | ||
43 | gpio_set_value(QI_LB60_AMP_GPIO, on); | ||
44 | |||
45 | return 0; | ||
46 | } | ||
47 | |||
48 | static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { | ||
49 | SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), | ||
50 | SND_SOC_DAPM_MIC("Mic", NULL), | ||
51 | }; | ||
52 | |||
53 | static const struct snd_soc_dapm_route qi_lb60_routes[] = { | ||
54 | {"Mic", NULL, "MIC"}, | ||
55 | {"Speaker", NULL, "LOUT"}, | ||
56 | {"Speaker", NULL, "ROUT"}, | ||
57 | }; | ||
58 | |||
59 | #define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \ | ||
60 | SND_SOC_DAIFMT_NB_NF | \ | ||
61 | SND_SOC_DAIFMT_CBM_CFM) | ||
62 | |||
63 | static int qi_lb60_codec_init(struct snd_soc_codec *codec) | ||
64 | { | ||
65 | int ret; | ||
66 | struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai; | ||
67 | |||
68 | snd_soc_dapm_nc_pin(codec, "LIN"); | ||
69 | snd_soc_dapm_nc_pin(codec, "RIN"); | ||
70 | |||
71 | ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT); | ||
72 | if (ret < 0) { | ||
73 | dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); | ||
74 | return ret; | ||
75 | } | ||
76 | |||
77 | snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets)); | ||
78 | snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes)); | ||
79 | snd_soc_dapm_sync(codec); | ||
80 | |||
81 | return 0; | ||
82 | } | ||
83 | |||
84 | static struct snd_soc_dai_link qi_lb60_dai = { | ||
85 | .name = "jz4740", | ||
86 | .stream_name = "jz4740", | ||
87 | .cpu_dai = &jz4740_i2s_dai, | ||
88 | .codec_dai = &jz4740_codec_dai, | ||
89 | .init = qi_lb60_codec_init, | ||
90 | }; | ||
91 | |||
92 | static struct snd_soc_card qi_lb60 = { | ||
93 | .name = "QI LB60", | ||
94 | .dai_link = &qi_lb60_dai, | ||
95 | .num_links = 1, | ||
96 | .platform = &jz4740_soc_platform, | ||
97 | }; | ||
98 | |||
99 | static struct snd_soc_device qi_lb60_snd_devdata = { | ||
100 | .card = &qi_lb60, | ||
101 | .codec_dev = &soc_codec_dev_jz4740_codec, | ||
102 | }; | ||
103 | |||
104 | static struct platform_device *qi_lb60_snd_device; | ||
105 | |||
106 | static int __init qi_lb60_init(void) | ||
107 | { | ||
108 | int ret; | ||
109 | |||
110 | qi_lb60_snd_device = platform_device_alloc("soc-audio", -1); | ||
111 | |||
112 | if (!qi_lb60_snd_device) | ||
113 | return -ENOMEM; | ||
114 | |||
115 | ret = gpio_request(QI_LB60_SND_GPIO, "SND"); | ||
116 | if (ret) { | ||
117 | pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n", | ||
118 | QI_LB60_SND_GPIO, ret); | ||
119 | goto err_device_put; | ||
120 | } | ||
121 | |||
122 | ret = gpio_request(QI_LB60_AMP_GPIO, "AMP"); | ||
123 | if (ret) { | ||
124 | pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n", | ||
125 | QI_LB60_AMP_GPIO, ret); | ||
126 | goto err_gpio_free_snd; | ||
127 | } | ||
128 | |||
129 | gpio_direction_output(QI_LB60_SND_GPIO, 0); | ||
130 | gpio_direction_output(QI_LB60_AMP_GPIO, 0); | ||
131 | |||
132 | platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata); | ||
133 | qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev; | ||
134 | |||
135 | ret = platform_device_add(qi_lb60_snd_device); | ||
136 | if (ret) { | ||
137 | pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret); | ||
138 | goto err_unset_pdata; | ||
139 | } | ||
140 | |||
141 | return 0; | ||
142 | |||
143 | err_unset_pdata: | ||
144 | platform_set_drvdata(qi_lb60_snd_device, NULL); | ||
145 | /*err_gpio_free_amp:*/ | ||
146 | gpio_free(QI_LB60_AMP_GPIO); | ||
147 | err_gpio_free_snd: | ||
148 | gpio_free(QI_LB60_SND_GPIO); | ||
149 | err_device_put: | ||
150 | platform_device_put(qi_lb60_snd_device); | ||
151 | |||
152 | return ret; | ||
153 | } | ||
154 | module_init(qi_lb60_init); | ||
155 | |||
156 | static void __exit qi_lb60_exit(void) | ||
157 | { | ||
158 | gpio_free(QI_LB60_AMP_GPIO); | ||
159 | gpio_free(QI_LB60_SND_GPIO); | ||
160 | platform_device_unregister(qi_lb60_snd_device); | ||
161 | } | ||
162 | module_exit(qi_lb60_exit); | ||
163 | |||
164 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | ||
165 | MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); | ||
166 | MODULE_LICENSE("GPL v2"); | ||