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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 20:07:31 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 20:07:31 -0400
commitfaa38b5e0e092914764cdba9f83d31a3f794d182 (patch)
treeb3e5921bdc36378033b4910eb4f29cb0dfc486e0 /sound/soc/jz4740
parent78417334b5cb6e1f915b8fdcc4fce3f1a1b4420c (diff)
parent74bf40f0793fed9e01eb6164c2ce63e8c27ca205 (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/Kconfig23
-rw-r--r--sound/soc/jz4740/Makefile13
-rw-r--r--sound/soc/jz4740/jz4740-i2s.c540
-rw-r--r--sound/soc/jz4740/jz4740-i2s.h18
-rw-r--r--sound/soc/jz4740/jz4740-pcm.c373
-rw-r--r--sound/soc/jz4740/jz4740-pcm.h22
-rw-r--r--sound/soc/jz4740/qi_lb60.c166
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 @@
1config 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
9config 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
16config 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#
4snd-soc-jz4740-objs := jz4740-pcm.o
5snd-soc-jz4740-i2s-objs := jz4740-i2s.o
6
7obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o
8obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o
9
10# Jz4740 Machine Support
11snd-soc-qi-lb60-objs := qi_lb60.o
12
13obj-$(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
85struct 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
97static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,
98 unsigned int reg)
99{
100 return readl(i2s->base + reg);
101}
102
103static 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
109static inline struct jz4740_i2s *jz4740_dai_to_i2s(struct snd_soc_dai *dai)
110{
111 return dai->private_data;
112}
113
114static 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
136static 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
152static 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
187static 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
238static 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
288static 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
313static 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
331static 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
349static 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
366static 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
378struct 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};
398EXPORT_SYMBOL_GPL(jz4740_i2s_dai);
399
400static 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
423static 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
482err_clk_put_i2s:
483 clk_disable(i2s->clk_aic);
484 clk_put(i2s->clk_i2s);
485err_clk_put_aic:
486 clk_put(i2s->clk_aic);
487err_iounmap:
488 iounmap(i2s->base);
489err_release_mem_region:
490 release_mem_region(i2s->mem->start, resource_size(i2s->mem));
491err_free:
492 kfree(i2s);
493
494 return ret;
495}
496
497static 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
516static 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
525static int __init jz4740_i2s_init(void)
526{
527 return platform_driver_register(&jz4740_i2s_driver);
528}
529module_init(jz4740_i2s_init);
530
531static void __exit jz4740_i2s_exit(void)
532{
533 platform_driver_unregister(&jz4740_i2s_driver);
534}
535module_exit(jz4740_i2s_exit);
536
537MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>");
538MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver");
539MODULE_LICENSE("GPL");
540MODULE_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
16extern 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
32struct 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 */
44static 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
62static 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
92static 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
104static 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
143static 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
156static 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
168static 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
191static 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
213static 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
229static 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
239static 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
247static 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
259static 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
279static 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
300static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32);
301
302int 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
327err:
328 return ret;
329}
330
331struct 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};
337EXPORT_SYMBOL_GPL(jz4740_soc_platform);
338
339static int __devinit jz4740_pcm_probe(struct platform_device *pdev)
340{
341 return snd_soc_register_platform(&jz4740_soc_platform);
342}
343
344static int __devexit jz4740_pcm_remove(struct platform_device *pdev)
345{
346 snd_soc_unregister_platform(&jz4740_soc_platform);
347 return 0;
348}
349
350static 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
359static int __init jz4740_soc_platform_init(void)
360{
361 return platform_driver_register(&jz4740_pcm_driver);
362}
363module_init(jz4740_soc_platform_init);
364
365static void __exit jz4740_soc_platform_exit(void)
366{
367 return platform_driver_unregister(&jz4740_pcm_driver);
368}
369module_exit(jz4740_soc_platform_exit);
370
371MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
372MODULE_DESCRIPTION("Ingenic SoC JZ4740 PCM driver");
373MODULE_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 */
15extern struct snd_soc_platform jz4740_soc_platform;
16
17struct 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
33static 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
48static 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
53static 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
63static 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
84static 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
92static 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
99static struct snd_soc_device qi_lb60_snd_devdata = {
100 .card = &qi_lb60,
101 .codec_dev = &soc_codec_dev_jz4740_codec,
102};
103
104static struct platform_device *qi_lb60_snd_device;
105
106static 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
143err_unset_pdata:
144 platform_set_drvdata(qi_lb60_snd_device, NULL);
145/*err_gpio_free_amp:*/
146 gpio_free(QI_LB60_AMP_GPIO);
147err_gpio_free_snd:
148 gpio_free(QI_LB60_SND_GPIO);
149err_device_put:
150 platform_device_put(qi_lb60_snd_device);
151
152 return ret;
153}
154module_init(qi_lb60_init);
155
156static 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}
162module_exit(qi_lb60_exit);
163
164MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
165MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
166MODULE_LICENSE("GPL v2");