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authorDaniel Glöckner <dg@emlix.com>2014-10-18 18:50:50 -0400
committerMark Brown <broonie@kernel.org>2014-10-20 06:03:52 -0400
commit19c768db42fcf1884cb1f9550969d1e9e69aa928 (patch)
tree52aacde220194728e9b8cbea0b6a40d8f1fbbe9b
parenta5448c88b812390a3622e76d774e10c0da1fb970 (diff)
ASoC: s6000: remove driver
The s6000 Xtensa support is removed from the kernel. There are no other chips known to use this I2S controller. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat
-rw-r--r--sound/soc/Kconfig1
-rw-r--r--sound/soc/Makefile1
-rw-r--r--sound/soc/s6000/Kconfig26
-rw-r--r--sound/soc/s6000/Makefile11
-rw-r--r--sound/soc/s6000/s6000-i2s.c617
-rw-r--r--sound/soc/s6000/s6000-i2s.h23
-rw-r--r--sound/soc/s6000/s6000-pcm.c521
-rw-r--r--sound/soc/s6000/s6000-pcm.h33
-rw-r--r--sound/soc/s6000/s6105-ipcam.c221
9 files changed, 0 insertions, 1454 deletions
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 0e9623368ab0..7d5d6444a837 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -49,7 +49,6 @@ source "sound/soc/mxs/Kconfig"
49source "sound/soc/pxa/Kconfig" 49source "sound/soc/pxa/Kconfig"
50source "sound/soc/rockchip/Kconfig" 50source "sound/soc/rockchip/Kconfig"
51source "sound/soc/samsung/Kconfig" 51source "sound/soc/samsung/Kconfig"
52source "sound/soc/s6000/Kconfig"
53source "sound/soc/sh/Kconfig" 52source "sound/soc/sh/Kconfig"
54source "sound/soc/sirf/Kconfig" 53source "sound/soc/sirf/Kconfig"
55source "sound/soc/spear/Kconfig" 54source "sound/soc/spear/Kconfig"
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 534714a1ca44..d88edfced8c4 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_SND_SOC) += kirkwood/
26obj-$(CONFIG_SND_SOC) += pxa/ 26obj-$(CONFIG_SND_SOC) += pxa/
27obj-$(CONFIG_SND_SOC) += rockchip/ 27obj-$(CONFIG_SND_SOC) += rockchip/
28obj-$(CONFIG_SND_SOC) += samsung/ 28obj-$(CONFIG_SND_SOC) += samsung/
29obj-$(CONFIG_SND_SOC) += s6000/
30obj-$(CONFIG_SND_SOC) += sh/ 29obj-$(CONFIG_SND_SOC) += sh/
31obj-$(CONFIG_SND_SOC) += sirf/ 30obj-$(CONFIG_SND_SOC) += sirf/
32obj-$(CONFIG_SND_SOC) += spear/ 31obj-$(CONFIG_SND_SOC) += spear/
diff --git a/sound/soc/s6000/Kconfig b/sound/soc/s6000/Kconfig
deleted file mode 100644
index f244a2566f20..000000000000
--- a/sound/soc/s6000/Kconfig
+++ /dev/null
@@ -1,26 +0,0 @@
1config SND_S6000_SOC
2 tristate "SoC Audio for the Stretch s6000 family"
3 depends on XTENSA_VARIANT_S6000 || COMPILE_TEST
4 depends on HAS_IOMEM
5 select SND_S6000_SOC_PCM if XTENSA_VARIANT_S6000
6 help
7 Say Y or M if you want to add support for codecs attached to
8 s6000 family chips. You will also need to select the platform
9 to support below.
10
11config SND_S6000_SOC_PCM
12 tristate
13
14config SND_S6000_SOC_I2S
15 tristate
16
17config SND_S6000_SOC_S6IPCAM
18 bool "SoC Audio support for Stretch 6105 IP Camera"
19 depends on SND_S6000_SOC=y
20 depends on I2C=y
21 depends on XTENSA_PLATFORM_S6105 || COMPILE_TEST
22 select SND_S6000_SOC_I2S
23 select SND_SOC_TLV320AIC3X
24 help
25 Say Y if you want to add support for SoC audio on the
26 Stretch s6105 IP Camera Reference Design.
diff --git a/sound/soc/s6000/Makefile b/sound/soc/s6000/Makefile
deleted file mode 100644
index 0f0ae2a012aa..000000000000
--- a/sound/soc/s6000/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
1# s6000 Platform Support
2snd-soc-s6000-objs := s6000-pcm.o
3snd-soc-s6000-i2s-objs := s6000-i2s.o
4
5obj-$(CONFIG_SND_S6000_SOC_PCM) += snd-soc-s6000.o
6obj-$(CONFIG_SND_S6000_SOC_I2S) += snd-soc-s6000-i2s.o
7
8# s6105 Machine Support
9snd-soc-s6ipcam-objs := s6105-ipcam.o
10
11obj-$(CONFIG_SND_S6000_SOC_S6IPCAM) += snd-soc-s6ipcam.o
diff --git a/sound/soc/s6000/s6000-i2s.c b/sound/soc/s6000/s6000-i2s.c
deleted file mode 100644
index 1c8d01166e5b..000000000000
--- a/sound/soc/s6000/s6000-i2s.c
+++ /dev/null
@@ -1,617 +0,0 @@
1/*
2 * ALSA SoC I2S Audio Layer for the Stretch S6000 family
3 *
4 * Author: Daniel Gloeckner, <dg@emlix.com>
5 * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/init.h>
13#include <linux/module.h>
14#include <linux/device.h>
15#include <linux/delay.h>
16#include <linux/clk.h>
17#include <linux/interrupt.h>
18#include <linux/io.h>
19#include <linux/slab.h>
20
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/initval.h>
25#include <sound/soc.h>
26
27#include "s6000-i2s.h"
28#include "s6000-pcm.h"
29
30struct s6000_i2s_dev {
31 dma_addr_t sifbase;
32 u8 __iomem *scbbase;
33 unsigned int wide;
34 unsigned int channel_in;
35 unsigned int channel_out;
36 unsigned int lines_in;
37 unsigned int lines_out;
38 struct s6000_pcm_dma_params dma_params;
39};
40
41#define S6_I2S_INTERRUPT_STATUS 0x00
42#define S6_I2S_INT_OVERRUN 1
43#define S6_I2S_INT_UNDERRUN 2
44#define S6_I2S_INT_ALIGNMENT 4
45#define S6_I2S_INTERRUPT_ENABLE 0x04
46#define S6_I2S_INTERRUPT_RAW 0x08
47#define S6_I2S_INTERRUPT_CLEAR 0x0C
48#define S6_I2S_INTERRUPT_SET 0x10
49#define S6_I2S_MODE 0x20
50#define S6_I2S_DUAL 0
51#define S6_I2S_WIDE 1
52#define S6_I2S_TX_DEFAULT 0x24
53#define S6_I2S_DATA_CFG(c) (0x40 + 0x10 * (c))
54#define S6_I2S_IN 0
55#define S6_I2S_OUT 1
56#define S6_I2S_UNUSED 2
57#define S6_I2S_INTERFACE_CFG(c) (0x44 + 0x10 * (c))
58#define S6_I2S_DIV_MASK 0x001fff
59#define S6_I2S_16BIT 0x000000
60#define S6_I2S_20BIT 0x002000
61#define S6_I2S_24BIT 0x004000
62#define S6_I2S_32BIT 0x006000
63#define S6_I2S_BITS_MASK 0x006000
64#define S6_I2S_MEM_16BIT 0x000000
65#define S6_I2S_MEM_32BIT 0x008000
66#define S6_I2S_MEM_MASK 0x008000
67#define S6_I2S_CHANNELS_SHIFT 16
68#define S6_I2S_CHANNELS_MASK 0x030000
69#define S6_I2S_SCK_IN 0x000000
70#define S6_I2S_SCK_OUT 0x040000
71#define S6_I2S_SCK_DIR 0x040000
72#define S6_I2S_WS_IN 0x000000
73#define S6_I2S_WS_OUT 0x080000
74#define S6_I2S_WS_DIR 0x080000
75#define S6_I2S_LEFT_FIRST 0x000000
76#define S6_I2S_RIGHT_FIRST 0x100000
77#define S6_I2S_FIRST 0x100000
78#define S6_I2S_CUR_SCK 0x200000
79#define S6_I2S_CUR_WS 0x400000
80#define S6_I2S_ENABLE(c) (0x48 + 0x10 * (c))
81#define S6_I2S_DISABLE_IF 0x02
82#define S6_I2S_ENABLE_IF 0x03
83#define S6_I2S_IS_BUSY 0x04
84#define S6_I2S_DMA_ACTIVE 0x08
85#define S6_I2S_IS_ENABLED 0x10
86
87#define S6_I2S_NUM_LINES 4
88
89#define S6_I2S_SIF_PORT0 0x0000000
90#define S6_I2S_SIF_PORT1 0x0000080 /* docs say 0x0000010 */
91
92static inline void s6_i2s_write_reg(struct s6000_i2s_dev *dev, int reg, u32 val)
93{
94 writel(val, dev->scbbase + reg);
95}
96
97static inline u32 s6_i2s_read_reg(struct s6000_i2s_dev *dev, int reg)
98{
99 return readl(dev->scbbase + reg);
100}
101
102static inline void s6_i2s_mod_reg(struct s6000_i2s_dev *dev, int reg,
103 u32 mask, u32 val)
104{
105 val ^= s6_i2s_read_reg(dev, reg) & ~mask;
106 s6_i2s_write_reg(dev, reg, val);
107}
108
109static void s6000_i2s_start_channel(struct s6000_i2s_dev *dev, int channel)
110{
111 int i, j, cur, prev;
112
113 /*
114 * Wait for WCLK to toggle 5 times before enabling the channel
115 * s6000 Family Datasheet 3.6.4:
116 * "At least two cycles of WS must occur between commands
117 * to disable or enable the interface"
118 */
119 j = 0;
120 prev = ~S6_I2S_CUR_WS;
121 for (i = 1000000; --i && j < 6; ) {
122 cur = s6_i2s_read_reg(dev, S6_I2S_INTERFACE_CFG(channel))
123 & S6_I2S_CUR_WS;
124 if (prev != cur) {
125 prev = cur;
126 j++;
127 }
128 }
129 if (j < 6)
130 printk(KERN_WARNING "s6000-i2s: timeout waiting for WCLK\n");
131
132 s6_i2s_write_reg(dev, S6_I2S_ENABLE(channel), S6_I2S_ENABLE_IF);
133}
134
135static void s6000_i2s_stop_channel(struct s6000_i2s_dev *dev, int channel)
136{
137 s6_i2s_write_reg(dev, S6_I2S_ENABLE(channel), S6_I2S_DISABLE_IF);
138}
139
140static void s6000_i2s_start(struct snd_pcm_substream *substream)
141{
142 struct snd_soc_pcm_runtime *rtd = substream->private_data;
143 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(rtd->cpu_dai);
144 int channel;
145
146 channel = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
147 dev->channel_out : dev->channel_in;
148
149 s6000_i2s_start_channel(dev, channel);
150}
151
152static void s6000_i2s_stop(struct snd_pcm_substream *substream)
153{
154 struct snd_soc_pcm_runtime *rtd = substream->private_data;
155 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(rtd->cpu_dai);
156 int channel;
157
158 channel = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
159 dev->channel_out : dev->channel_in;
160
161 s6000_i2s_stop_channel(dev, channel);
162}
163
164static int s6000_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
165 int after)
166{
167 switch (cmd) {
168 case SNDRV_PCM_TRIGGER_START:
169 case SNDRV_PCM_TRIGGER_RESUME:
170 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
171 if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ^ !after)
172 s6000_i2s_start(substream);
173 break;
174 case SNDRV_PCM_TRIGGER_STOP:
175 case SNDRV_PCM_TRIGGER_SUSPEND:
176 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
177 if (!after)
178 s6000_i2s_stop(substream);
179 }
180 return 0;
181}
182
183static unsigned int s6000_i2s_int_sources(struct s6000_i2s_dev *dev)
184{
185 unsigned int pending;
186 pending = s6_i2s_read_reg(dev, S6_I2S_INTERRUPT_RAW);
187 pending &= S6_I2S_INT_ALIGNMENT |
188 S6_I2S_INT_UNDERRUN |
189 S6_I2S_INT_OVERRUN;
190 s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_CLEAR, pending);
191
192 return pending;
193}
194
195static unsigned int s6000_i2s_check_xrun(struct snd_soc_dai *cpu_dai)
196{
197 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
198 unsigned int errors;
199 unsigned int ret;
200
201 errors = s6000_i2s_int_sources(dev);
202 if (likely(!errors))
203 return 0;
204
205 ret = 0;
206 if (errors & S6_I2S_INT_ALIGNMENT)
207 printk(KERN_ERR "s6000-i2s: WCLK misaligned\n");
208 if (errors & S6_I2S_INT_UNDERRUN)
209 ret |= 1 << SNDRV_PCM_STREAM_PLAYBACK;
210 if (errors & S6_I2S_INT_OVERRUN)
211 ret |= 1 << SNDRV_PCM_STREAM_CAPTURE;
212 return ret;
213}
214
215static void s6000_i2s_wait_disabled(struct s6000_i2s_dev *dev)
216{
217 int channel;
218 int n = 50;
219 for (channel = 0; channel < 2; channel++) {
220 while (--n >= 0) {
221 int v = s6_i2s_read_reg(dev, S6_I2S_ENABLE(channel));
222 if ((v & S6_I2S_IS_ENABLED)
223 || !(v & (S6_I2S_DMA_ACTIVE | S6_I2S_IS_BUSY)))
224 break;
225 udelay(20);
226 }
227 }
228 if (n < 0)
229 printk(KERN_WARNING "s6000-i2s: timeout disabling interfaces");
230}
231
232static int s6000_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
233 unsigned int fmt)
234{
235 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
236 u32 w;
237
238 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
239 case SND_SOC_DAIFMT_CBM_CFM:
240 w = S6_I2S_SCK_IN | S6_I2S_WS_IN;
241 break;
242 case SND_SOC_DAIFMT_CBS_CFM:
243 w = S6_I2S_SCK_OUT | S6_I2S_WS_IN;
244 break;
245 case SND_SOC_DAIFMT_CBM_CFS:
246 w = S6_I2S_SCK_IN | S6_I2S_WS_OUT;
247 break;
248 case SND_SOC_DAIFMT_CBS_CFS:
249 w = S6_I2S_SCK_OUT | S6_I2S_WS_OUT;
250 break;
251 default:
252 return -EINVAL;
253 }
254
255 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
256 case SND_SOC_DAIFMT_NB_NF:
257 w |= S6_I2S_LEFT_FIRST;
258 break;
259 case SND_SOC_DAIFMT_NB_IF:
260 w |= S6_I2S_RIGHT_FIRST;
261 break;
262 default:
263 return -EINVAL;
264 }
265
266 s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(0),
267 S6_I2S_FIRST | S6_I2S_WS_DIR | S6_I2S_SCK_DIR, w);
268 s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(1),
269 S6_I2S_FIRST | S6_I2S_WS_DIR | S6_I2S_SCK_DIR, w);
270
271 return 0;
272}
273
274static int s6000_i2s_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div)
275{
276 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
277
278 if (!div || (div & 1) || div > (S6_I2S_DIV_MASK + 1) * 2)
279 return -EINVAL;
280
281 s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(div_id),
282 S6_I2S_DIV_MASK, div / 2 - 1);
283 return 0;
284}
285
286static int s6000_i2s_hw_params(struct snd_pcm_substream *substream,
287 struct snd_pcm_hw_params *params,
288 struct snd_soc_dai *dai)
289{
290 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
291 int interf;
292 u32 w = 0;
293
294 if (dev->wide)
295 interf = 0;
296 else {
297 w |= (((params_channels(params) - 2) / 2)
298 << S6_I2S_CHANNELS_SHIFT) & S6_I2S_CHANNELS_MASK;
299 interf = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
300 ? dev->channel_out : dev->channel_in;
301 }
302
303 switch (params_format(params)) {
304 case SNDRV_PCM_FORMAT_S16_LE:
305 w |= S6_I2S_16BIT | S6_I2S_MEM_16BIT;
306 break;
307 case SNDRV_PCM_FORMAT_S32_LE:
308 w |= S6_I2S_32BIT | S6_I2S_MEM_32BIT;
309 break;
310 default:
311 printk(KERN_WARNING "s6000-i2s: unsupported PCM format %x\n",
312 params_format(params));
313 return -EINVAL;
314 }
315
316 if (s6_i2s_read_reg(dev, S6_I2S_INTERFACE_CFG(interf))
317 & S6_I2S_IS_ENABLED) {
318 printk(KERN_ERR "s6000-i2s: interface already enabled\n");
319 return -EBUSY;
320 }
321
322 s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(interf),
323 S6_I2S_CHANNELS_MASK|S6_I2S_MEM_MASK|S6_I2S_BITS_MASK,
324 w);
325
326 return 0;
327}
328
329static int s6000_i2s_dai_probe(struct snd_soc_dai *dai)
330{
331 struct s6000_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
332 struct s6000_snd_platform_data *pdata = dai->dev->platform_data;
333
334 if (!pdata)
335 return -EINVAL;
336
337 dai->capture_dma_data = &dev->dma_params;
338 dai->playback_dma_data = &dev->dma_params;
339
340 dev->wide = pdata->wide;
341 dev->channel_in = pdata->channel_in;
342 dev->channel_out = pdata->channel_out;
343 dev->lines_in = pdata->lines_in;
344 dev->lines_out = pdata->lines_out;
345
346 s6_i2s_write_reg(dev, S6_I2S_MODE,
347 dev->wide ? S6_I2S_WIDE : S6_I2S_DUAL);
348
349 if (dev->wide) {
350 int i;
351
352 if (dev->lines_in + dev->lines_out > S6_I2S_NUM_LINES)
353 return -EINVAL;
354
355 dev->channel_in = 0;
356 dev->channel_out = 1;
357 dai->driver->capture.channels_min = 2 * dev->lines_in;
358 dai->driver->capture.channels_max = dai->driver->capture.channels_min;
359 dai->driver->playback.channels_min = 2 * dev->lines_out;
360 dai->driver->playback.channels_max = dai->driver->playback.channels_min;
361
362 for (i = 0; i < dev->lines_out; i++)
363 s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i), S6_I2S_OUT);
364
365 for (; i < S6_I2S_NUM_LINES - dev->lines_in; i++)
366 s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i),
367 S6_I2S_UNUSED);
368
369 for (; i < S6_I2S_NUM_LINES; i++)
370 s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i), S6_I2S_IN);
371 } else {
372 unsigned int cfg[2] = {S6_I2S_UNUSED, S6_I2S_UNUSED};
373
374 if (dev->lines_in > 1 || dev->lines_out > 1)
375 return -EINVAL;
376
377 dai->driver->capture.channels_min = 2 * dev->lines_in;
378 dai->driver->capture.channels_max = 8 * dev->lines_in;
379 dai->driver->playback.channels_min = 2 * dev->lines_out;
380 dai->driver->playback.channels_max = 8 * dev->lines_out;
381
382 if (dev->lines_in)
383 cfg[dev->channel_in] = S6_I2S_IN;
384 if (dev->lines_out)
385 cfg[dev->channel_out] = S6_I2S_OUT;
386
387 s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(0), cfg[0]);
388 s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(1), cfg[1]);
389 }
390
391 if (dev->lines_out) {
392 if (dev->lines_in) {
393 if (!dev->dma_params.dma_out)
394 return -ENODEV;
395 } else {
396 dev->dma_params.dma_out = dev->dma_params.dma_in;
397 dev->dma_params.dma_in = 0;
398 }
399 }
400 dev->dma_params.sif_in = dev->sifbase + (dev->channel_in ?
401 S6_I2S_SIF_PORT1 : S6_I2S_SIF_PORT0);
402 dev->dma_params.sif_out = dev->sifbase + (dev->channel_out ?
403 S6_I2S_SIF_PORT1 : S6_I2S_SIF_PORT0);
404 dev->dma_params.same_rate = pdata->same_rate | pdata->wide;
405 return 0;
406}
407
408#define S6000_I2S_RATES SNDRV_PCM_RATE_CONTINUOUS
409#define S6000_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
410
411static const struct snd_soc_dai_ops s6000_i2s_dai_ops = {
412 .set_fmt = s6000_i2s_set_dai_fmt,
413 .set_clkdiv = s6000_i2s_set_clkdiv,
414 .hw_params = s6000_i2s_hw_params,
415};
416
417static struct snd_soc_dai_driver s6000_i2s_dai = {
418 .probe = s6000_i2s_dai_probe,
419 .playback = {
420 .channels_min = 2,
421 .channels_max = 8,
422 .formats = S6000_I2S_FORMATS,
423 .rates = S6000_I2S_RATES,
424 .rate_min = 0,
425 .rate_max = 1562500,
426 },
427 .capture = {
428 .channels_min = 2,
429 .channels_max = 8,
430 .formats = S6000_I2S_FORMATS,
431 .rates = S6000_I2S_RATES,
432 .rate_min = 0,
433 .rate_max = 1562500,
434 },
435 .ops = &s6000_i2s_dai_ops,
436};
437
438static const struct snd_soc_component_driver s6000_i2s_component = {
439 .name = "s6000-i2s",
440};
441
442static int s6000_i2s_probe(struct platform_device *pdev)
443{
444 struct s6000_i2s_dev *dev;
445 struct resource *scbmem, *sifmem, *region, *dma1, *dma2;
446 u8 __iomem *mmio;
447 int ret;
448
449 scbmem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
450 if (!scbmem) {
451 dev_err(&pdev->dev, "no mem resource?\n");
452 ret = -ENODEV;
453 goto err_release_none;
454 }
455
456 region = request_mem_region(scbmem->start, resource_size(scbmem),
457 pdev->name);
458 if (!region) {
459 dev_err(&pdev->dev, "I2S SCB region already claimed\n");
460 ret = -EBUSY;
461 goto err_release_none;
462 }
463
464 mmio = ioremap(scbmem->start, resource_size(scbmem));
465 if (!mmio) {
466 dev_err(&pdev->dev, "can't ioremap SCB region\n");
467 ret = -ENOMEM;
468 goto err_release_scb;
469 }
470
471 sifmem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
472 if (!sifmem) {
473 dev_err(&pdev->dev, "no second mem resource?\n");
474 ret = -ENODEV;
475 goto err_release_map;
476 }
477
478 region = request_mem_region(sifmem->start, resource_size(sifmem),
479 pdev->name);
480 if (!region) {
481 dev_err(&pdev->dev, "I2S SIF region already claimed\n");
482 ret = -EBUSY;
483 goto err_release_map;
484 }
485
486 dma1 = platform_get_resource(pdev, IORESOURCE_DMA, 0);
487 if (!dma1) {
488 dev_err(&pdev->dev, "no dma resource?\n");
489 ret = -ENODEV;
490 goto err_release_sif;
491 }
492
493 region = request_mem_region(dma1->start, resource_size(dma1),
494 pdev->name);
495 if (!region) {
496 dev_err(&pdev->dev, "I2S DMA region already claimed\n");
497 ret = -EBUSY;
498 goto err_release_sif;
499 }
500
501 dma2 = platform_get_resource(pdev, IORESOURCE_DMA, 1);
502 if (dma2) {
503 region = request_mem_region(dma2->start, resource_size(dma2),
504 pdev->name);
505 if (!region) {
506 dev_err(&pdev->dev,
507 "I2S DMA region already claimed\n");
508 ret = -EBUSY;
509 goto err_release_dma1;
510 }
511 }
512
513 dev = kzalloc(sizeof(struct s6000_i2s_dev), GFP_KERNEL);
514 if (!dev) {
515 ret = -ENOMEM;
516 goto err_release_dma2;
517 }
518 dev_set_drvdata(&pdev->dev, dev);
519
520 dev->sifbase = sifmem->start;
521 dev->scbbase = mmio;
522
523 s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE, 0);
524 s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_CLEAR,
525 S6_I2S_INT_ALIGNMENT |
526 S6_I2S_INT_UNDERRUN |
527 S6_I2S_INT_OVERRUN);
528
529 s6000_i2s_stop_channel(dev, 0);
530 s6000_i2s_stop_channel(dev, 1);
531 s6000_i2s_wait_disabled(dev);
532
533 dev->dma_params.check_xrun = s6000_i2s_check_xrun;
534 dev->dma_params.trigger = s6000_i2s_trigger;
535 dev->dma_params.dma_in = dma1->start;
536 dev->dma_params.dma_out = dma2 ? dma2->start : 0;
537 dev->dma_params.irq = platform_get_irq(pdev, 0);
538 if (dev->dma_params.irq < 0) {
539 dev_err(&pdev->dev, "no irq resource?\n");
540 ret = -ENODEV;
541 goto err_release_dev;
542 }
543
544 s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE,
545 S6_I2S_INT_ALIGNMENT |
546 S6_I2S_INT_UNDERRUN |
547 S6_I2S_INT_OVERRUN);
548
549 ret = snd_soc_register_component(&pdev->dev, &s6000_i2s_component,
550 &s6000_i2s_dai, 1);
551 if (ret)
552 goto err_release_dev;
553
554 return 0;
555
556err_release_dev:
557 kfree(dev);
558err_release_dma2:
559 if (dma2)
560 release_mem_region(dma2->start, resource_size(dma2));
561err_release_dma1:
562 release_mem_region(dma1->start, resource_size(dma1));
563err_release_sif:
564 release_mem_region(sifmem->start, resource_size(sifmem));
565err_release_map:
566 iounmap(mmio);
567err_release_scb:
568 release_mem_region(scbmem->start, resource_size(scbmem));
569err_release_none:
570 return ret;
571}
572
573static int s6000_i2s_remove(struct platform_device *pdev)
574{
575 struct s6000_i2s_dev *dev = dev_get_drvdata(&pdev->dev);
576 struct resource *region;
577 void __iomem *mmio = dev->scbbase;
578
579 snd_soc_unregister_component(&pdev->dev);
580
581 s6000_i2s_stop_channel(dev, 0);
582 s6000_i2s_stop_channel(dev, 1);
583
584 s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE, 0);
585 kfree(dev);
586
587 region = platform_get_resource(pdev, IORESOURCE_DMA, 0);
588 release_mem_region(region->start, resource_size(region));
589
590 region = platform_get_resource(pdev, IORESOURCE_DMA, 1);
591 if (region)
592 release_mem_region(region->start, resource_size(region));
593
594 region = platform_get_resource(pdev, IORESOURCE_MEM, 0);
595 release_mem_region(region->start, resource_size(region));
596
597 iounmap(mmio);
598 region = platform_get_resource(pdev, IORESOURCE_IO, 0);
599 release_mem_region(region->start, resource_size(region));
600
601 return 0;
602}
603
604static struct platform_driver s6000_i2s_driver = {
605 .probe = s6000_i2s_probe,
606 .remove = s6000_i2s_remove,
607 .driver = {
608 .name = "s6000-i2s",
609 .owner = THIS_MODULE,
610 },
611};
612
613module_platform_driver(s6000_i2s_driver);
614
615MODULE_AUTHOR("Daniel Gloeckner");
616MODULE_DESCRIPTION("Stretch s6000 family I2S SoC Interface");
617MODULE_LICENSE("GPL");
diff --git a/sound/soc/s6000/s6000-i2s.h b/sound/soc/s6000/s6000-i2s.h
deleted file mode 100644
index 86aa1921c89e..000000000000
--- a/sound/soc/s6000/s6000-i2s.h
+++ /dev/null
@@ -1,23 +0,0 @@
1/*
2 * ALSA SoC I2S Audio Layer for the Stretch s6000 family
3 *
4 * Author: Daniel Gloeckner, <dg@emlix.com>
5 * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef _S6000_I2S_H
13#define _S6000_I2S_H
14
15struct s6000_snd_platform_data {
16 int lines_in;
17 int lines_out;
18 int channel_in;
19 int channel_out;
20 int wide;
21 int same_rate;
22};
23#endif
diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
deleted file mode 100644
index fb8461e1b1f6..000000000000
--- a/sound/soc/s6000/s6000-pcm.c
+++ /dev/null
@@ -1,521 +0,0 @@
1/*
2 * ALSA PCM interface for the Stetch s6000 family
3 *
4 * Author: Daniel Gloeckner, <dg@emlix.com>
5 * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/platform_device.h>
15#include <linux/slab.h>
16#include <linux/dma-mapping.h>
17#include <linux/interrupt.h>
18
19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23
24#include <asm/dma.h>
25#include <variant/dmac.h>
26
27#include "s6000-pcm.h"
28
29#define S6_PCM_PREALLOCATE_SIZE (96 * 1024)
30#define S6_PCM_PREALLOCATE_MAX (2048 * 1024)
31
32static struct snd_pcm_hardware s6000_pcm_hardware = {
33 .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
34 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
35 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_JOINT_DUPLEX),
36 .buffer_bytes_max = 0x7ffffff0,
37 .period_bytes_min = 16,
38 .period_bytes_max = 0xfffff0,
39 .periods_min = 2,
40 .periods_max = 1024, /* no limit */
41 .fifo_size = 0,
42};
43
44struct s6000_runtime_data {
45 spinlock_t lock;
46 int period; /* current DMA period */
47};
48
49static void s6000_pcm_enqueue_dma(struct snd_pcm_substream *substream)
50{
51 struct snd_pcm_runtime *runtime = substream->runtime;
52 struct s6000_runtime_data *prtd = runtime->private_data;
53 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
54 struct s6000_pcm_dma_params *par;
55 int channel;
56 unsigned int period_size;
57 unsigned int dma_offset;
58 dma_addr_t dma_pos;
59 dma_addr_t src, dst;
60
61 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
62
63 period_size = snd_pcm_lib_period_bytes(substream);
64 dma_offset = prtd->period * period_size;
65 dma_pos = runtime->dma_addr + dma_offset;
66
67 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
68 src = dma_pos;
69 dst = par->sif_out;
70 channel = par->dma_out;
71 } else {
72 src = par->sif_in;
73 dst = dma_pos;
74 channel = par->dma_in;
75 }
76
77 if (!s6dmac_channel_enabled(DMA_MASK_DMAC(channel),
78 DMA_INDEX_CHNL(channel)))
79 return;
80
81 if (s6dmac_fifo_full(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel))) {
82 printk(KERN_ERR "s6000-pcm: fifo full\n");
83 return;
84 }
85
86 if (WARN_ON(period_size & 15))
87 return;
88 s6dmac_put_fifo(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel),
89 src, dst, period_size);
90
91 prtd->period++;
92 if (unlikely(prtd->period >= runtime->periods))
93 prtd->period = 0;
94}
95
96static irqreturn_t s6000_pcm_irq(int irq, void *data)
97{
98 struct snd_pcm *pcm = data;
99 struct snd_soc_pcm_runtime *runtime = pcm->private_data;
100 struct s6000_runtime_data *prtd;
101 unsigned int has_xrun;
102 int i, ret = IRQ_NONE;
103
104 for (i = 0; i < 2; ++i) {
105 struct snd_pcm_substream *substream = pcm->streams[i].substream;
106 struct s6000_pcm_dma_params *params =
107 snd_soc_dai_get_dma_data(runtime->cpu_dai, substream);
108 u32 channel;
109 unsigned int pending;
110
111 if (substream == SNDRV_PCM_STREAM_PLAYBACK)
112 channel = params->dma_out;
113 else
114 channel = params->dma_in;
115
116 has_xrun = params->check_xrun(runtime->cpu_dai);
117
118 if (!channel)
119 continue;
120
121 if (unlikely(has_xrun & (1 << i)) &&
122 substream->runtime &&
123 snd_pcm_running(substream)) {
124 dev_dbg(pcm->dev, "xrun\n");
125 snd_pcm_stream_lock(substream);
126 snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
127 snd_pcm_stream_unlock(substream);
128 ret = IRQ_HANDLED;
129 }
130
131 pending = s6dmac_int_sources(DMA_MASK_DMAC(channel),
132 DMA_INDEX_CHNL(channel));
133
134 if (pending & 1) {
135 ret = IRQ_HANDLED;
136 if (likely(substream->runtime &&
137 snd_pcm_running(substream))) {
138 snd_pcm_period_elapsed(substream);
139 dev_dbg(pcm->dev, "period elapsed %x %x\n",
140 s6dmac_cur_src(DMA_MASK_DMAC(channel),
141 DMA_INDEX_CHNL(channel)),
142 s6dmac_cur_dst(DMA_MASK_DMAC(channel),
143 DMA_INDEX_CHNL(channel)));
144 prtd = substream->runtime->private_data;
145 spin_lock(&prtd->lock);
146 s6000_pcm_enqueue_dma(substream);
147 spin_unlock(&prtd->lock);
148 }
149 }
150
151 if (unlikely(pending & ~7)) {
152 if (pending & (1 << 3))
153 printk(KERN_WARNING
154 "s6000-pcm: DMA %x Underflow\n",
155 channel);
156 if (pending & (1 << 4))
157 printk(KERN_WARNING
158 "s6000-pcm: DMA %x Overflow\n",
159 channel);
160 if (pending & 0x1e0)
161 printk(KERN_WARNING
162 "s6000-pcm: DMA %x Master Error "
163 "(mask %x)\n",
164 channel, pending >> 5);
165
166 }
167 }
168
169 return ret;
170}
171
172static int s6000_pcm_start(struct snd_pcm_substream *substream)
173{
174 struct s6000_runtime_data *prtd = substream->runtime->private_data;
175 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
176 struct s6000_pcm_dma_params *par;
177 unsigned long flags;
178 int srcinc;
179 u32 dma;
180
181 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
182
183 spin_lock_irqsave(&prtd->lock, flags);
184
185 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
186 srcinc = 1;
187 dma = par->dma_out;
188 } else {
189 srcinc = 0;
190 dma = par->dma_in;
191 }
192 s6dmac_enable_chan(DMA_MASK_DMAC(dma), DMA_INDEX_CHNL(dma),
193 1 /* priority 1 (0 is max) */,
194 0 /* peripheral requests w/o xfer length mode */,
195 srcinc /* source address increment */,
196 srcinc^1 /* destination address increment */,
197 0 /* chunksize 0 (skip impossible on this dma) */,
198 0 /* source skip after chunk (impossible) */,
199 0 /* destination skip after chunk (impossible) */,
200 4 /* 16 byte burst size */,
201 -1 /* don't conserve bandwidth */,
202 0 /* low watermark irq descriptor threshold */,
203 0 /* disable hardware timestamps */,
204 1 /* enable channel */);
205
206 s6000_pcm_enqueue_dma(substream);
207 s6000_pcm_enqueue_dma(substream);
208
209 spin_unlock_irqrestore(&prtd->lock, flags);
210
211 return 0;
212}
213
214static int s6000_pcm_stop(struct snd_pcm_substream *substream)
215{
216 struct s6000_runtime_data *prtd = substream->runtime->private_data;
217 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
218 struct s6000_pcm_dma_params *par;
219 unsigned long flags;
220 u32 channel;
221
222 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
223
224 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
225 channel = par->dma_out;
226 else
227 channel = par->dma_in;
228
229 s6dmac_set_terminal_count(DMA_MASK_DMAC(channel),
230 DMA_INDEX_CHNL(channel), 0);
231
232 spin_lock_irqsave(&prtd->lock, flags);
233
234 s6dmac_disable_chan(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel));
235
236 spin_unlock_irqrestore(&prtd->lock, flags);
237
238 return 0;
239}
240
241static int s6000_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
242{
243 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
244 struct s6000_pcm_dma_params *par;
245 int ret;
246
247 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
248
249 ret = par->trigger(substream, cmd, 0);
250 if (ret < 0)
251 return ret;
252
253 switch (cmd) {
254 case SNDRV_PCM_TRIGGER_START:
255 case SNDRV_PCM_TRIGGER_RESUME:
256 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
257 ret = s6000_pcm_start(substream);
258 break;
259 case SNDRV_PCM_TRIGGER_STOP:
260 case SNDRV_PCM_TRIGGER_SUSPEND:
261 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
262 ret = s6000_pcm_stop(substream);
263 break;
264 default:
265 ret = -EINVAL;
266 }
267 if (ret < 0)
268 return ret;
269
270 return par->trigger(substream, cmd, 1);
271}
272
273static int s6000_pcm_prepare(struct snd_pcm_substream *substream)
274{
275 struct s6000_runtime_data *prtd = substream->runtime->private_data;
276
277 prtd->period = 0;
278
279 return 0;
280}
281
282static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
283{
284 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
285 struct s6000_pcm_dma_params *par;
286 struct snd_pcm_runtime *runtime = substream->runtime;
287 struct s6000_runtime_data *prtd = runtime->private_data;
288 unsigned long flags;
289 unsigned int offset;
290 dma_addr_t count;
291
292 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
293
294 spin_lock_irqsave(&prtd->lock, flags);
295
296 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
297 count = s6dmac_cur_src(DMA_MASK_DMAC(par->dma_out),
298 DMA_INDEX_CHNL(par->dma_out));
299 else
300 count = s6dmac_cur_dst(DMA_MASK_DMAC(par->dma_in),
301 DMA_INDEX_CHNL(par->dma_in));
302
303 count -= runtime->dma_addr;
304
305 spin_unlock_irqrestore(&prtd->lock, flags);
306
307 offset = bytes_to_frames(runtime, count);
308 if (unlikely(offset >= runtime->buffer_size))
309 offset = 0;
310
311 return offset;
312}
313
314static int s6000_pcm_open(struct snd_pcm_substream *substream)
315{
316 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
317 struct s6000_pcm_dma_params *par;
318 struct snd_pcm_runtime *runtime = substream->runtime;
319 struct s6000_runtime_data *prtd;
320 int ret;
321
322 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
323 snd_soc_set_runtime_hwparams(substream, &s6000_pcm_hardware);
324
325 ret = snd_pcm_hw_constraint_step(runtime, 0,
326 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 16);
327 if (ret < 0)
328 return ret;
329 ret = snd_pcm_hw_constraint_step(runtime, 0,
330 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
331 if (ret < 0)
332 return ret;
333 ret = snd_pcm_hw_constraint_integer(runtime,
334 SNDRV_PCM_HW_PARAM_PERIODS);
335 if (ret < 0)
336 return ret;
337
338 if (par->same_rate) {
339 int rate;
340 spin_lock(&par->lock); /* needed? */
341 rate = par->rate;
342 spin_unlock(&par->lock);
343 if (rate != -1) {
344 ret = snd_pcm_hw_constraint_minmax(runtime,
345 SNDRV_PCM_HW_PARAM_RATE,
346 rate, rate);
347 if (ret < 0)
348 return ret;
349 }
350 }
351
352 prtd = kzalloc(sizeof(struct s6000_runtime_data), GFP_KERNEL);
353 if (prtd == NULL)
354 return -ENOMEM;
355
356 spin_lock_init(&prtd->lock);
357
358 runtime->private_data = prtd;
359
360 return 0;
361}
362
363static int s6000_pcm_close(struct snd_pcm_substream *substream)
364{
365 struct snd_pcm_runtime *runtime = substream->runtime;
366 struct s6000_runtime_data *prtd = runtime->private_data;
367
368 kfree(prtd);
369
370 return 0;
371}
372
373static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
374 struct snd_pcm_hw_params *hw_params)
375{
376 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
377 struct s6000_pcm_dma_params *par;
378 int ret;
379 ret = snd_pcm_lib_malloc_pages(substream,
380 params_buffer_bytes(hw_params));
381 if (ret < 0) {
382 printk(KERN_WARNING "s6000-pcm: allocation of memory failed\n");
383 return ret;
384 }
385
386 par = snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
387
388 if (par->same_rate) {
389 spin_lock(&par->lock);
390 if (par->rate == -1 ||
391 !(par->in_use & ~(1 << substream->stream))) {
392 par->rate = params_rate(hw_params);
393 par->in_use |= 1 << substream->stream;
394 } else if (params_rate(hw_params) != par->rate) {
395 snd_pcm_lib_free_pages(substream);
396 par->in_use &= ~(1 << substream->stream);
397 ret = -EBUSY;
398 }
399 spin_unlock(&par->lock);
400 }
401 return ret;
402}
403
404static int s6000_pcm_hw_free(struct snd_pcm_substream *substream)
405{
406 struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
407 struct s6000_pcm_dma_params *par =
408 snd_soc_dai_get_dma_data(soc_runtime->cpu_dai, substream);
409
410 spin_lock(&par->lock);
411 par->in_use &= ~(1 << substream->stream);
412 if (!par->in_use)
413 par->rate = -1;
414 spin_unlock(&par->lock);
415
416 return snd_pcm_lib_free_pages(substream);
417}
418
419static struct snd_pcm_ops s6000_pcm_ops = {
420 .open = s6000_pcm_open,
421 .close = s6000_pcm_close,
422 .ioctl = snd_pcm_lib_ioctl,
423 .hw_params = s6000_pcm_hw_params,
424 .hw_free = s6000_pcm_hw_free,
425 .trigger = s6000_pcm_trigger,
426 .prepare = s6000_pcm_prepare,
427 .pointer = s6000_pcm_pointer,
428};
429
430static void s6000_pcm_free(struct snd_pcm *pcm)
431{
432 struct snd_soc_pcm_runtime *runtime = pcm->private_data;
433 struct s6000_pcm_dma_params *params =
434 snd_soc_dai_get_dma_data(runtime->cpu_dai,
435 pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
436
437 free_irq(params->irq, pcm);
438 snd_pcm_lib_preallocate_free_for_all(pcm);
439}
440
441static int s6000_pcm_new(struct snd_soc_pcm_runtime *runtime)
442{
443 struct snd_card *card = runtime->card->snd_card;
444 struct snd_pcm *pcm = runtime->pcm;
445 struct s6000_pcm_dma_params *params;
446 int res;
447
448 params = snd_soc_dai_get_dma_data(runtime->cpu_dai,
449 pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
450
451 res = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
452 if (res)
453 return res;
454
455 if (params->dma_in) {
456 s6dmac_disable_chan(DMA_MASK_DMAC(params->dma_in),
457 DMA_INDEX_CHNL(params->dma_in));
458 s6dmac_int_sources(DMA_MASK_DMAC(params->dma_in),
459 DMA_INDEX_CHNL(params->dma_in));
460 }
461
462 if (params->dma_out) {
463 s6dmac_disable_chan(DMA_MASK_DMAC(params->dma_out),
464 DMA_INDEX_CHNL(params->dma_out));
465 s6dmac_int_sources(DMA_MASK_DMAC(params->dma_out),
466 DMA_INDEX_CHNL(params->dma_out));
467 }
468
469 res = request_irq(params->irq, s6000_pcm_irq, IRQF_SHARED,
470 "s6000-audio", pcm);
471 if (res) {
472 printk(KERN_ERR "s6000-pcm couldn't get IRQ\n");
473 return res;
474 }
475
476 res = snd_pcm_lib_preallocate_pages_for_all(pcm,
477 SNDRV_DMA_TYPE_DEV,
478 card->dev,
479 S6_PCM_PREALLOCATE_SIZE,
480 S6_PCM_PREALLOCATE_MAX);
481 if (res)
482 printk(KERN_WARNING "s6000-pcm: preallocation failed\n");
483
484 spin_lock_init(&params->lock);
485 params->in_use = 0;
486 params->rate = -1;
487 return 0;
488}
489
490static struct snd_soc_platform_driver s6000_soc_platform = {
491 .ops = &s6000_pcm_ops,
492 .pcm_new = s6000_pcm_new,
493 .pcm_free = s6000_pcm_free,
494};
495
496static int s6000_soc_platform_probe(struct platform_device *pdev)
497{
498 return snd_soc_register_platform(&pdev->dev, &s6000_soc_platform);
499}
500
501static int s6000_soc_platform_remove(struct platform_device *pdev)
502{
503 snd_soc_unregister_platform(&pdev->dev);
504 return 0;
505}
506
507static struct platform_driver s6000_pcm_driver = {
508 .driver = {
509 .name = "s6000-pcm-audio",
510 .owner = THIS_MODULE,
511 },
512
513 .probe = s6000_soc_platform_probe,
514 .remove = s6000_soc_platform_remove,
515};
516
517module_platform_driver(s6000_pcm_driver);
518
519MODULE_AUTHOR("Daniel Gloeckner");
520MODULE_DESCRIPTION("Stretch s6000 family PCM DMA module");
521MODULE_LICENSE("GPL");
diff --git a/sound/soc/s6000/s6000-pcm.h b/sound/soc/s6000/s6000-pcm.h
deleted file mode 100644
index 09d9b883e58b..000000000000
--- a/sound/soc/s6000/s6000-pcm.h
+++ /dev/null
@@ -1,33 +0,0 @@
1/*
2 * ALSA PCM interface for the Stretch s6000 family
3 *
4 * Author: Daniel Gloeckner, <dg@emlix.com>
5 * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef _S6000_PCM_H
13#define _S6000_PCM_H
14
15struct snd_soc_dai;
16struct snd_pcm_substream;
17
18struct s6000_pcm_dma_params {
19 unsigned int (*check_xrun)(struct snd_soc_dai *cpu_dai);
20 int (*trigger)(struct snd_pcm_substream *substream, int cmd, int after);
21 dma_addr_t sif_in;
22 dma_addr_t sif_out;
23 u32 dma_in;
24 u32 dma_out;
25 int irq;
26 int same_rate;
27
28 spinlock_t lock;
29 int in_use;
30 int rate;
31};
32
33#endif
diff --git a/sound/soc/s6000/s6105-ipcam.c b/sound/soc/s6000/s6105-ipcam.c
deleted file mode 100644
index 3510c01f8a6a..000000000000
--- a/sound/soc/s6000/s6105-ipcam.c
+++ /dev/null
@@ -1,221 +0,0 @@
1/*
2 * ASoC driver for Stretch s6105 IP camera platform
3 *
4 * Author: Daniel Gloeckner, <dg@emlix.com>
5 * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/timer.h>
15#include <linux/interrupt.h>
16#include <linux/platform_device.h>
17#include <linux/i2c.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/soc.h>
21
22#include "s6000-pcm.h"
23#include "s6000-i2s.h"
24
25#define S6105_CAM_CODEC_CLOCK 12288000
26
27static int s6105_hw_params(struct snd_pcm_substream *substream,
28 struct snd_pcm_hw_params *params)
29{
30 struct snd_soc_pcm_runtime *rtd = substream->private_data;
31 struct snd_soc_dai *codec_dai = rtd->codec_dai;
32 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
33 int ret = 0;
34
35 /* set codec DAI configuration */
36 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
37 SND_SOC_DAIFMT_CBM_CFM);
38 if (ret < 0)
39 return ret;
40
41 /* set cpu DAI configuration */
42 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM |
43 SND_SOC_DAIFMT_NB_NF);
44 if (ret < 0)
45 return ret;
46
47 /* set the codec system clock */
48 ret = snd_soc_dai_set_sysclk(codec_dai, 0, S6105_CAM_CODEC_CLOCK,
49 SND_SOC_CLOCK_OUT);
50 if (ret < 0)
51 return ret;
52
53 return 0;
54}
55
56static struct snd_soc_ops s6105_ops = {
57 .hw_params = s6105_hw_params,
58};
59
60/* s6105 machine dapm widgets */
61static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
62 SND_SOC_DAPM_LINE("Audio Out Differential", NULL),
63 SND_SOC_DAPM_LINE("Audio Out Stereo", NULL),
64 SND_SOC_DAPM_LINE("Audio In", NULL),
65};
66
67/* s6105 machine audio_mapnections to the codec pins */
68static const struct snd_soc_dapm_route audio_map[] = {
69 /* Audio Out connected to HPLOUT, HPLCOM, HPROUT */
70 {"Audio Out Differential", NULL, "HPLOUT"},
71 {"Audio Out Differential", NULL, "HPLCOM"},
72 {"Audio Out Stereo", NULL, "HPLOUT"},
73 {"Audio Out Stereo", NULL, "HPROUT"},
74
75 /* Audio In connected to LINE1L, LINE1R */
76 {"LINE1L", NULL, "Audio In"},
77 {"LINE1R", NULL, "Audio In"},
78};
79
80static int output_type_info(struct snd_kcontrol *kcontrol,
81 struct snd_ctl_elem_info *uinfo)
82{
83 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
84 uinfo->count = 1;
85 uinfo->value.enumerated.items = 2;
86 if (uinfo->value.enumerated.item) {
87 uinfo->value.enumerated.item = 1;
88 strcpy(uinfo->value.enumerated.name, "HPLOUT/HPROUT");
89 } else {
90 strcpy(uinfo->value.enumerated.name, "HPLOUT/HPLCOM");
91 }
92 return 0;
93}
94
95static int output_type_get(struct snd_kcontrol *kcontrol,
96 struct snd_ctl_elem_value *ucontrol)
97{
98 ucontrol->value.enumerated.item[0] = kcontrol->private_value;
99 return 0;
100}
101
102static int output_type_put(struct snd_kcontrol *kcontrol,
103 struct snd_ctl_elem_value *ucontrol)
104{
105 struct snd_soc_card *card = kcontrol->private_data;
106 struct snd_soc_dapm_context *dapm = &card->dapm;
107 unsigned int val = (ucontrol->value.enumerated.item[0] != 0);
108 char *differential = "Audio Out Differential";
109 char *stereo = "Audio Out Stereo";
110
111 if (kcontrol->private_value == val)
112 return 0;
113 kcontrol->private_value = val;
114 snd_soc_dapm_disable_pin(dapm, val ? differential : stereo);
115 snd_soc_dapm_sync(dapm);
116 snd_soc_dapm_enable_pin(dapm, val ? stereo : differential);
117 snd_soc_dapm_sync(dapm);
118
119 return 1;
120}
121
122static const struct snd_kcontrol_new audio_out_mux = {
123 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
124 .name = "Master Output Mux",
125 .index = 0,
126 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
127 .info = output_type_info,
128 .get = output_type_get,
129 .put = output_type_put,
130 .private_value = 1 /* default to stereo */
131};
132
133/* Logic for a aic3x as connected on the s6105 ip camera ref design */
134static int s6105_aic3x_init(struct snd_soc_pcm_runtime *rtd)
135{
136 struct snd_soc_card *card = rtd->card;
137
138 /* must correspond to audio_out_mux.private_value initializer */
139 snd_soc_dapm_disable_pin(&card->dapm, "Audio Out Differential");
140
141 snd_ctl_add(card->snd_card, snd_ctl_new1(&audio_out_mux, card));
142
143 return 0;
144}
145
146/* s6105 digital audio interface glue - connects codec <--> CPU */
147static struct snd_soc_dai_link s6105_dai = {
148 .name = "TLV320AIC31",
149 .stream_name = "AIC31",
150 .cpu_dai_name = "s6000-i2s",
151 .codec_dai_name = "tlv320aic3x-hifi",
152 .platform_name = "s6000-pcm-audio",
153 .codec_name = "tlv320aic3x-codec.0-001a",
154 .init = s6105_aic3x_init,
155 .ops = &s6105_ops,
156};
157
158/* s6105 audio machine driver */
159static struct snd_soc_card snd_soc_card_s6105 = {
160 .name = "Stretch IP Camera",
161 .owner = THIS_MODULE,
162 .dai_link = &s6105_dai,
163 .num_links = 1,
164
165 .dapm_widgets = aic3x_dapm_widgets,
166 .num_dapm_widgets = ARRAY_SIZE(aic3x_dapm_widgets),
167 .dapm_routes = audio_map,
168 .num_dapm_routes = ARRAY_SIZE(audio_map),
169 .fully_routed = true,
170};
171
172static struct s6000_snd_platform_data s6105_snd_data __initdata = {
173 .wide = 0,
174 .channel_in = 0,
175 .channel_out = 1,
176 .lines_in = 1,
177 .lines_out = 1,
178 .same_rate = 1,
179};
180
181static struct platform_device *s6105_snd_device;
182
183/* temporary i2c device creation until this can be moved into the machine
184 * support file.
185*/
186static struct i2c_board_info i2c_device[] = {
187 { I2C_BOARD_INFO("tlv320aic33", 0x18), }
188};
189
190static int __init s6105_init(void)
191{
192 int ret;
193
194 i2c_register_board_info(0, i2c_device, ARRAY_SIZE(i2c_device));
195
196 s6105_snd_device = platform_device_alloc("soc-audio", -1);
197 if (!s6105_snd_device)
198 return -ENOMEM;
199
200 platform_set_drvdata(s6105_snd_device, &snd_soc_card_s6105);
201 platform_device_add_data(s6105_snd_device, &s6105_snd_data,
202 sizeof(s6105_snd_data));
203
204 ret = platform_device_add(s6105_snd_device);
205 if (ret)
206 platform_device_put(s6105_snd_device);
207
208 return ret;
209}
210
211static void __exit s6105_exit(void)
212{
213 platform_device_unregister(s6105_snd_device);
214}
215
216module_init(s6105_init);
217module_exit(s6105_exit);
218
219MODULE_AUTHOR("Daniel Gloeckner");
220MODULE_DESCRIPTION("Stretch s6105 IP camera ASoC driver");
221MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-28 23:13:06 -0500