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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /sound/soc/imx
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'sound/soc/imx')
-rw-r--r--sound/soc/imx/Kconfig59
-rw-r--r--sound/soc/imx/Makefile19
-rw-r--r--sound/soc/imx/eukrea-tlv320.c131
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c341
-rw-r--r--sound/soc/imx/imx-pcm-fiq.c346
-rw-r--r--sound/soc/imx/imx-ssi.c778
-rw-r--r--sound/soc/imx/imx-ssi.h236
-rw-r--r--sound/soc/imx/mx27vis-aic32x4.c137
-rw-r--r--sound/soc/imx/phycore-ac97.c99
-rw-r--r--sound/soc/imx/wm1133-ev1.c303
10 files changed, 2449 insertions, 0 deletions
diff --git a/sound/soc/imx/Kconfig b/sound/soc/imx/Kconfig
new file mode 100644
index 00000000000..bb699bb55a5
--- /dev/null
+++ b/sound/soc/imx/Kconfig
@@ -0,0 +1,59 @@
1menuconfig SND_IMX_SOC
2 tristate "SoC Audio for Freescale i.MX CPUs"
3 depends on ARCH_MXC
4 select SND_PCM
5 select FIQ
6 select SND_SOC_AC97_BUS
7 help
8 Say Y or M if you want to add support for codecs attached to
9 the i.MX SSI interface.
10
11
12if SND_IMX_SOC
13
14config SND_MXC_SOC_FIQ
15 tristate
16
17config SND_MXC_SOC_MX2
18 tristate
19
20config SND_MXC_SOC_WM1133_EV1
21 tristate "Audio on the the i.MX31ADS with WM1133-EV1 fitted"
22 depends on MACH_MX31ADS_WM1133_EV1 && EXPERIMENTAL
23 select SND_SOC_WM8350
24 select SND_MXC_SOC_FIQ
25 help
26 Enable support for audio on the i.MX31ADS with the WM1133-EV1
27 PMIC board with WM8835x fitted.
28
29config SND_SOC_MX27VIS_AIC32X4
30 tristate "SoC audio support for Visstrim M10 boards"
31 depends on MACH_IMX27_VISSTRIM_M10
32 select SND_SOC_TVL320AIC32X4
33 select SND_MXC_SOC_MX2
34 help
35 Say Y if you want to add support for SoC audio on Visstrim SM10
36 board with TLV320AIC32X4 codec.
37
38config SND_SOC_PHYCORE_AC97
39 tristate "SoC Audio support for Phytec phyCORE (and phyCARD) boards"
40 depends on MACH_PCM043 || MACH_PCA100
41 select SND_SOC_WM9712
42 select SND_MXC_SOC_FIQ
43 help
44 Say Y if you want to add support for SoC audio on Phytec phyCORE
45 and phyCARD boards in AC97 mode
46
47config SND_SOC_EUKREA_TLV320
48 tristate "Eukrea TLV320"
49 depends on MACH_EUKREA_MBIMX27_BASEBOARD \
50 || MACH_EUKREA_MBIMXSD25_BASEBOARD \
51 || MACH_EUKREA_MBIMXSD35_BASEBOARD \
52 || MACH_EUKREA_MBIMXSD51_BASEBOARD
53 select SND_SOC_TLV320AIC23
54 select SND_MXC_SOC_FIQ
55 help
56 Enable I2S based access to the TLV320AIC23B codec attached
57 to the SSI interface
58
59endif # SND_IMX_SOC
diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile
new file mode 100644
index 00000000000..d6d609ba7e2
--- /dev/null
+++ b/sound/soc/imx/Makefile
@@ -0,0 +1,19 @@
1# i.MX Platform Support
2snd-soc-imx-objs := imx-ssi.o
3snd-soc-imx-fiq-objs := imx-pcm-fiq.o
4snd-soc-imx-mx2-objs := imx-pcm-dma-mx2.o
5
6obj-$(CONFIG_SND_IMX_SOC) += snd-soc-imx.o
7obj-$(CONFIG_SND_MXC_SOC_FIQ) += snd-soc-imx-fiq.o
8obj-$(CONFIG_SND_MXC_SOC_MX2) += snd-soc-imx-mx2.o
9
10# i.MX Machine Support
11snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
12snd-soc-phycore-ac97-objs := phycore-ac97.o
13snd-soc-mx27vis-aic32x4-objs := mx27vis-aic32x4.o
14snd-soc-wm1133-ev1-objs := wm1133-ev1.o
15
16obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
17obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
18obj-$(CONFIG_SND_SOC_MX27VIS_AIC32X4) += snd-soc-mx27vis-aic32x4.o
19obj-$(CONFIG_SND_MXC_SOC_WM1133_EV1) += snd-soc-wm1133-ev1.o
diff --git a/sound/soc/imx/eukrea-tlv320.c b/sound/soc/imx/eukrea-tlv320.c
new file mode 100644
index 00000000000..75fb4b83548
--- /dev/null
+++ b/sound/soc/imx/eukrea-tlv320.c
@@ -0,0 +1,131 @@
1/*
2 * eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode
3 *
4 * Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
5 *
6 * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
7 * which is Copyright 2009 Simtec Electronics
8 * and on sound/soc/imx/phycore-ac97.c which is
9 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 */
17
18#include <linux/module.h>
19#include <linux/moduleparam.h>
20#include <linux/device.h>
21#include <linux/i2c.h>
22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/soc.h>
25#include <asm/mach-types.h>
26
27#include "../codecs/tlv320aic23.h"
28#include "imx-ssi.h"
29
30#define CODEC_CLOCK 12000000
31
32static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
33 struct snd_pcm_hw_params *params)
34{
35 struct snd_soc_pcm_runtime *rtd = substream->private_data;
36 struct snd_soc_dai *codec_dai = rtd->codec_dai;
37 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
38 int ret;
39
40 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
41 SND_SOC_DAIFMT_NB_NF |
42 SND_SOC_DAIFMT_CBM_CFM);
43 if (ret) {
44 pr_err("%s: failed set cpu dai format\n", __func__);
45 return ret;
46 }
47
48 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
49 SND_SOC_DAIFMT_NB_NF |
50 SND_SOC_DAIFMT_CBM_CFM);
51 if (ret) {
52 pr_err("%s: failed set codec dai format\n", __func__);
53 return ret;
54 }
55
56 ret = snd_soc_dai_set_sysclk(codec_dai, 0,
57 CODEC_CLOCK, SND_SOC_CLOCK_OUT);
58 if (ret) {
59 pr_err("%s: failed setting codec sysclk\n", __func__);
60 return ret;
61 }
62 snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
63
64 ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
65 SND_SOC_CLOCK_IN);
66 if (ret) {
67 pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
68 return ret;
69 }
70
71 return 0;
72}
73
74static struct snd_soc_ops eukrea_tlv320_snd_ops = {
75 .hw_params = eukrea_tlv320_hw_params,
76};
77
78static struct snd_soc_dai_link eukrea_tlv320_dai = {
79 .name = "tlv320aic23",
80 .stream_name = "TLV320AIC23",
81 .codec_dai_name = "tlv320aic23-hifi",
82 .platform_name = "imx-fiq-pcm-audio.0",
83 .codec_name = "tlv320aic23-codec.0-001a",
84 .cpu_dai_name = "imx-ssi.0",
85 .ops = &eukrea_tlv320_snd_ops,
86};
87
88static struct snd_soc_card eukrea_tlv320 = {
89 .name = "cpuimx-audio",
90 .dai_link = &eukrea_tlv320_dai,
91 .num_links = 1,
92};
93
94static struct platform_device *eukrea_tlv320_snd_device;
95
96static int __init eukrea_tlv320_init(void)
97{
98 int ret;
99
100 if (!machine_is_eukrea_cpuimx27() && !machine_is_eukrea_cpuimx25sd()
101 && !machine_is_eukrea_cpuimx35sd()
102 && !machine_is_eukrea_cpuimx51sd())
103 /* return happy. We might run on a totally different machine */
104 return 0;
105
106 eukrea_tlv320_snd_device = platform_device_alloc("soc-audio", -1);
107 if (!eukrea_tlv320_snd_device)
108 return -ENOMEM;
109
110 platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320);
111 ret = platform_device_add(eukrea_tlv320_snd_device);
112
113 if (ret) {
114 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
115 platform_device_put(eukrea_tlv320_snd_device);
116 }
117
118 return ret;
119}
120
121static void __exit eukrea_tlv320_exit(void)
122{
123 platform_device_unregister(eukrea_tlv320_snd_device);
124}
125
126module_init(eukrea_tlv320_init);
127module_exit(eukrea_tlv320_exit);
128
129MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
130MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
131MODULE_LICENSE("GPL");
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
new file mode 100644
index 00000000000..43fdc24f7e8
--- /dev/null
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -0,0 +1,341 @@
1/*
2 * imx-pcm-dma-mx2.c -- ALSA Soc Audio Layer
3 *
4 * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
5 *
6 * This code is based on code copyrighted by Freescale,
7 * Liam Girdwood, Javier Martin and probably others.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14#include <linux/clk.h>
15#include <linux/delay.h>
16#include <linux/device.h>
17#include <linux/dma-mapping.h>
18#include <linux/init.h>
19#include <linux/interrupt.h>
20#include <linux/module.h>
21#include <linux/platform_device.h>
22#include <linux/slab.h>
23#include <linux/dmaengine.h>
24
25#include <sound/core.h>
26#include <sound/initval.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/soc.h>
30
31#include <mach/dma.h>
32
33#include "imx-ssi.h"
34
35struct imx_pcm_runtime_data {
36 int period_bytes;
37 int periods;
38 int dma;
39 unsigned long offset;
40 unsigned long size;
41 void *buf;
42 int period_time;
43 struct dma_async_tx_descriptor *desc;
44 struct dma_chan *dma_chan;
45 struct imx_dma_data dma_data;
46};
47
48static void audio_dma_irq(void *data)
49{
50 struct snd_pcm_substream *substream = (struct snd_pcm_substream *)data;
51 struct snd_pcm_runtime *runtime = substream->runtime;
52 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
53
54 iprtd->offset += iprtd->period_bytes;
55 iprtd->offset %= iprtd->period_bytes * iprtd->periods;
56
57 snd_pcm_period_elapsed(substream);
58}
59
60static bool filter(struct dma_chan *chan, void *param)
61{
62 struct imx_pcm_runtime_data *iprtd = param;
63
64 if (!imx_dma_is_general_purpose(chan))
65 return false;
66
67 chan->private = &iprtd->dma_data;
68
69 return true;
70}
71
72static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
74{
75 struct snd_soc_pcm_runtime *rtd = substream->private_data;
76 struct imx_pcm_dma_params *dma_params;
77 struct snd_pcm_runtime *runtime = substream->runtime;
78 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
79 struct dma_slave_config slave_config;
80 dma_cap_mask_t mask;
81 enum dma_slave_buswidth buswidth;
82 int ret;
83
84 dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
85
86 iprtd->dma_data.peripheral_type = IMX_DMATYPE_SSI;
87 iprtd->dma_data.priority = DMA_PRIO_HIGH;
88 iprtd->dma_data.dma_request = dma_params->dma;
89
90 /* Try to grab a DMA channel */
91 dma_cap_zero(mask);
92 dma_cap_set(DMA_SLAVE, mask);
93 iprtd->dma_chan = dma_request_channel(mask, filter, iprtd);
94 if (!iprtd->dma_chan)
95 return -EINVAL;
96
97 switch (params_format(params)) {
98 case SNDRV_PCM_FORMAT_S16_LE:
99 buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
100 break;
101 case SNDRV_PCM_FORMAT_S20_3LE:
102 case SNDRV_PCM_FORMAT_S24_LE:
103 buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
104 break;
105 default:
106 return 0;
107 }
108
109 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
110 slave_config.direction = DMA_TO_DEVICE;
111 slave_config.dst_addr = dma_params->dma_addr;
112 slave_config.dst_addr_width = buswidth;
113 slave_config.dst_maxburst = dma_params->burstsize;
114 } else {
115 slave_config.direction = DMA_FROM_DEVICE;
116 slave_config.src_addr = dma_params->dma_addr;
117 slave_config.src_addr_width = buswidth;
118 slave_config.src_maxburst = dma_params->burstsize;
119 }
120
121 ret = dmaengine_slave_config(iprtd->dma_chan, &slave_config);
122 if (ret)
123 return ret;
124
125 return 0;
126}
127
128static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
129 struct snd_pcm_hw_params *params)
130{
131 struct snd_soc_pcm_runtime *rtd = substream->private_data;
132 struct snd_pcm_runtime *runtime = substream->runtime;
133 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
134 unsigned long dma_addr;
135 struct dma_chan *chan;
136 struct imx_pcm_dma_params *dma_params;
137 int ret;
138
139 dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
140 ret = imx_ssi_dma_alloc(substream, params);
141 if (ret)
142 return ret;
143 chan = iprtd->dma_chan;
144
145 iprtd->size = params_buffer_bytes(params);
146 iprtd->periods = params_periods(params);
147 iprtd->period_bytes = params_period_bytes(params);
148 iprtd->offset = 0;
149 iprtd->period_time = HZ / (params_rate(params) /
150 params_period_size(params));
151
152 snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
153
154 dma_addr = runtime->dma_addr;
155
156 iprtd->buf = (unsigned int *)substream->dma_buffer.area;
157
158 iprtd->desc = chan->device->device_prep_dma_cyclic(chan, dma_addr,
159 iprtd->period_bytes * iprtd->periods,
160 iprtd->period_bytes,
161 substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
162 DMA_TO_DEVICE : DMA_FROM_DEVICE);
163 if (!iprtd->desc) {
164 dev_err(&chan->dev->device, "cannot prepare slave dma\n");
165 return -EINVAL;
166 }
167
168 iprtd->desc->callback = audio_dma_irq;
169 iprtd->desc->callback_param = substream;
170
171 return 0;
172}
173
174static int snd_imx_pcm_hw_free(struct snd_pcm_substream *substream)
175{
176 struct snd_pcm_runtime *runtime = substream->runtime;
177 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
178
179 if (iprtd->dma_chan) {
180 dma_release_channel(iprtd->dma_chan);
181 iprtd->dma_chan = NULL;
182 }
183
184 return 0;
185}
186
187static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
188{
189 struct snd_soc_pcm_runtime *rtd = substream->private_data;
190 struct imx_pcm_dma_params *dma_params;
191
192 dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
193
194 return 0;
195}
196
197static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
198{
199 struct snd_pcm_runtime *runtime = substream->runtime;
200 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
201
202 switch (cmd) {
203 case SNDRV_PCM_TRIGGER_START:
204 case SNDRV_PCM_TRIGGER_RESUME:
205 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
206 dmaengine_submit(iprtd->desc);
207
208 break;
209
210 case SNDRV_PCM_TRIGGER_STOP:
211 case SNDRV_PCM_TRIGGER_SUSPEND:
212 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
213 dmaengine_terminate_all(iprtd->dma_chan);
214
215 break;
216 default:
217 return -EINVAL;
218 }
219
220 return 0;
221}
222
223static snd_pcm_uframes_t snd_imx_pcm_pointer(struct snd_pcm_substream *substream)
224{
225 struct snd_pcm_runtime *runtime = substream->runtime;
226 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
227
228 pr_debug("%s: %ld %ld\n", __func__, iprtd->offset,
229 bytes_to_frames(substream->runtime, iprtd->offset));
230
231 return bytes_to_frames(substream->runtime, iprtd->offset);
232}
233
234static struct snd_pcm_hardware snd_imx_hardware = {
235 .info = SNDRV_PCM_INFO_INTERLEAVED |
236 SNDRV_PCM_INFO_BLOCK_TRANSFER |
237 SNDRV_PCM_INFO_MMAP |
238 SNDRV_PCM_INFO_MMAP_VALID |
239 SNDRV_PCM_INFO_PAUSE |
240 SNDRV_PCM_INFO_RESUME,
241 .formats = SNDRV_PCM_FMTBIT_S16_LE,
242 .rate_min = 8000,
243 .channels_min = 2,
244 .channels_max = 2,
245 .buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
246 .period_bytes_min = 128,
247 .period_bytes_max = 65535, /* Limited by SDMA engine */
248 .periods_min = 2,
249 .periods_max = 255,
250 .fifo_size = 0,
251};
252
253static int snd_imx_open(struct snd_pcm_substream *substream)
254{
255 struct snd_pcm_runtime *runtime = substream->runtime;
256 struct imx_pcm_runtime_data *iprtd;
257 int ret;
258
259 iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
260 if (iprtd == NULL)
261 return -ENOMEM;
262 runtime->private_data = iprtd;
263
264 ret = snd_pcm_hw_constraint_integer(substream->runtime,
265 SNDRV_PCM_HW_PARAM_PERIODS);
266 if (ret < 0) {
267 kfree(iprtd);
268 return ret;
269 }
270
271 snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
272
273 return 0;
274}
275
276static int snd_imx_close(struct snd_pcm_substream *substream)
277{
278 struct snd_pcm_runtime *runtime = substream->runtime;
279 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
280
281 kfree(iprtd);
282
283 return 0;
284}
285
286static struct snd_pcm_ops imx_pcm_ops = {
287 .open = snd_imx_open,
288 .close = snd_imx_close,
289 .ioctl = snd_pcm_lib_ioctl,
290 .hw_params = snd_imx_pcm_hw_params,
291 .hw_free = snd_imx_pcm_hw_free,
292 .prepare = snd_imx_pcm_prepare,
293 .trigger = snd_imx_pcm_trigger,
294 .pointer = snd_imx_pcm_pointer,
295 .mmap = snd_imx_pcm_mmap,
296};
297
298static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
299 .ops = &imx_pcm_ops,
300 .pcm_new = imx_pcm_new,
301 .pcm_free = imx_pcm_free,
302};
303
304static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
305{
306 struct imx_ssi *ssi = platform_get_drvdata(pdev);
307
308 ssi->dma_params_tx.burstsize = 6;
309 ssi->dma_params_rx.burstsize = 4;
310
311 return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
312}
313
314static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
315{
316 snd_soc_unregister_platform(&pdev->dev);
317 return 0;
318}
319
320static struct platform_driver imx_pcm_driver = {
321 .driver = {
322 .name = "imx-pcm-audio",
323 .owner = THIS_MODULE,
324 },
325 .probe = imx_soc_platform_probe,
326 .remove = __devexit_p(imx_soc_platform_remove),
327};
328
329static int __init snd_imx_pcm_init(void)
330{
331 return platform_driver_register(&imx_pcm_driver);
332}
333module_init(snd_imx_pcm_init);
334
335static void __exit snd_imx_pcm_exit(void)
336{
337 platform_driver_unregister(&imx_pcm_driver);
338}
339module_exit(snd_imx_pcm_exit);
340MODULE_LICENSE("GPL");
341MODULE_ALIAS("platform:imx-pcm-audio");
diff --git a/sound/soc/imx/imx-pcm-fiq.c b/sound/soc/imx/imx-pcm-fiq.c
new file mode 100644
index 00000000000..7945625e0e0
--- /dev/null
+++ b/sound/soc/imx/imx-pcm-fiq.c
@@ -0,0 +1,346 @@
1/*
2 * imx-pcm-fiq.c -- ALSA Soc Audio Layer
3 *
4 * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
5 *
6 * This code is based on code copyrighted by Freescale,
7 * Liam Girdwood, Javier Martin and probably others.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14#include <linux/clk.h>
15#include <linux/delay.h>
16#include <linux/device.h>
17#include <linux/dma-mapping.h>
18#include <linux/init.h>
19#include <linux/interrupt.h>
20#include <linux/module.h>
21#include <linux/platform_device.h>
22#include <linux/slab.h>
23
24#include <sound/core.h>
25#include <sound/initval.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29
30#include <asm/fiq.h>
31
32#include <mach/ssi.h>
33
34#include "imx-ssi.h"
35
36struct imx_pcm_runtime_data {
37 int period;
38 int periods;
39 unsigned long offset;
40 unsigned long last_offset;
41 unsigned long size;
42 struct hrtimer hrt;
43 int poll_time_ns;
44 struct snd_pcm_substream *substream;
45 atomic_t running;
46};
47
48static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
49{
50 struct imx_pcm_runtime_data *iprtd =
51 container_of(hrt, struct imx_pcm_runtime_data, hrt);
52 struct snd_pcm_substream *substream = iprtd->substream;
53 struct snd_pcm_runtime *runtime = substream->runtime;
54 struct pt_regs regs;
55 unsigned long delta;
56
57 if (!atomic_read(&iprtd->running))
58 return HRTIMER_NORESTART;
59
60 get_fiq_regs(&regs);
61
62 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
63 iprtd->offset = regs.ARM_r8 & 0xffff;
64 else
65 iprtd->offset = regs.ARM_r9 & 0xffff;
66
67 /* How much data have we transferred since the last period report? */
68 if (iprtd->offset >= iprtd->last_offset)
69 delta = iprtd->offset - iprtd->last_offset;
70 else
71 delta = runtime->buffer_size + iprtd->offset
72 - iprtd->last_offset;
73
74 /* If we've transferred at least a period then report it and
75 * reset our poll time */
76 if (delta >= iprtd->period) {
77 snd_pcm_period_elapsed(substream);
78 iprtd->last_offset = iprtd->offset;
79 }
80
81 hrtimer_forward_now(hrt, ns_to_ktime(iprtd->poll_time_ns));
82
83 return HRTIMER_RESTART;
84}
85
86static struct fiq_handler fh = {
87 .name = DRV_NAME,
88};
89
90static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
91 struct snd_pcm_hw_params *params)
92{
93 struct snd_pcm_runtime *runtime = substream->runtime;
94 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
95
96 iprtd->size = params_buffer_bytes(params);
97 iprtd->periods = params_periods(params);
98 iprtd->period = params_period_bytes(params) ;
99 iprtd->offset = 0;
100 iprtd->last_offset = 0;
101 iprtd->poll_time_ns = 1000000000 / params_rate(params) *
102 params_period_size(params);
103 snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
104
105 return 0;
106}
107
108static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
109{
110 struct snd_pcm_runtime *runtime = substream->runtime;
111 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
112 struct pt_regs regs;
113
114 get_fiq_regs(&regs);
115 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
116 regs.ARM_r8 = (iprtd->period * iprtd->periods - 1) << 16;
117 else
118 regs.ARM_r9 = (iprtd->period * iprtd->periods - 1) << 16;
119
120 set_fiq_regs(&regs);
121
122 return 0;
123}
124
125static int fiq_enable;
126static int imx_pcm_fiq;
127
128static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
129{
130 struct snd_pcm_runtime *runtime = substream->runtime;
131 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
132
133 switch (cmd) {
134 case SNDRV_PCM_TRIGGER_START:
135 case SNDRV_PCM_TRIGGER_RESUME:
136 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
137 atomic_set(&iprtd->running, 1);
138 hrtimer_start(&iprtd->hrt, ns_to_ktime(iprtd->poll_time_ns),
139 HRTIMER_MODE_REL);
140 if (++fiq_enable == 1)
141 enable_fiq(imx_pcm_fiq);
142
143 break;
144
145 case SNDRV_PCM_TRIGGER_STOP:
146 case SNDRV_PCM_TRIGGER_SUSPEND:
147 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
148 atomic_set(&iprtd->running, 0);
149
150 if (--fiq_enable == 0)
151 disable_fiq(imx_pcm_fiq);
152
153 break;
154 default:
155 return -EINVAL;
156 }
157
158 return 0;
159}
160
161static snd_pcm_uframes_t snd_imx_pcm_pointer(struct snd_pcm_substream *substream)
162{
163 struct snd_pcm_runtime *runtime = substream->runtime;
164 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
165
166 return bytes_to_frames(substream->runtime, iprtd->offset);
167}
168
169static struct snd_pcm_hardware snd_imx_hardware = {
170 .info = SNDRV_PCM_INFO_INTERLEAVED |
171 SNDRV_PCM_INFO_BLOCK_TRANSFER |
172 SNDRV_PCM_INFO_MMAP |
173 SNDRV_PCM_INFO_MMAP_VALID |
174 SNDRV_PCM_INFO_PAUSE |
175 SNDRV_PCM_INFO_RESUME,
176 .formats = SNDRV_PCM_FMTBIT_S16_LE,
177 .rate_min = 8000,
178 .channels_min = 2,
179 .channels_max = 2,
180 .buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
181 .period_bytes_min = 128,
182 .period_bytes_max = 16 * 1024,
183 .periods_min = 4,
184 .periods_max = 255,
185 .fifo_size = 0,
186};
187
188static int snd_imx_open(struct snd_pcm_substream *substream)
189{
190 struct snd_pcm_runtime *runtime = substream->runtime;
191 struct imx_pcm_runtime_data *iprtd;
192 int ret;
193
194 iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
195 if (iprtd == NULL)
196 return -ENOMEM;
197 runtime->private_data = iprtd;
198
199 iprtd->substream = substream;
200
201 atomic_set(&iprtd->running, 0);
202 hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
203 iprtd->hrt.function = snd_hrtimer_callback;
204
205 ret = snd_pcm_hw_constraint_integer(substream->runtime,
206 SNDRV_PCM_HW_PARAM_PERIODS);
207 if (ret < 0) {
208 kfree(iprtd);
209 return ret;
210 }
211
212 snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
213 return 0;
214}
215
216static int snd_imx_close(struct snd_pcm_substream *substream)
217{
218 struct snd_pcm_runtime *runtime = substream->runtime;
219 struct imx_pcm_runtime_data *iprtd = runtime->private_data;
220
221 hrtimer_cancel(&iprtd->hrt);
222
223 kfree(iprtd);
224
225 return 0;
226}
227
228static struct snd_pcm_ops imx_pcm_ops = {
229 .open = snd_imx_open,
230 .close = snd_imx_close,
231 .ioctl = snd_pcm_lib_ioctl,
232 .hw_params = snd_imx_pcm_hw_params,
233 .prepare = snd_imx_pcm_prepare,
234 .trigger = snd_imx_pcm_trigger,
235 .pointer = snd_imx_pcm_pointer,
236 .mmap = snd_imx_pcm_mmap,
237};
238
239static int ssi_irq = 0;
240
241static int imx_pcm_fiq_new(struct snd_soc_pcm_runtime *rtd)
242{
243 struct snd_soc_dai *dai = rtd->cpu_dai;
244 struct snd_pcm *pcm = rtd->pcm;
245 int ret;
246
247 ret = imx_pcm_new(rtd);
248 if (ret)
249 return ret;
250
251 if (dai->driver->playback.channels_min) {
252 struct snd_pcm_substream *substream =
253 pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
254 struct snd_dma_buffer *buf = &substream->dma_buffer;
255
256 imx_ssi_fiq_tx_buffer = (unsigned long)buf->area;
257 }
258
259 if (dai->driver->capture.channels_min) {
260 struct snd_pcm_substream *substream =
261 pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
262 struct snd_dma_buffer *buf = &substream->dma_buffer;
263
264 imx_ssi_fiq_rx_buffer = (unsigned long)buf->area;
265 }
266
267 set_fiq_handler(&imx_ssi_fiq_start,
268 &imx_ssi_fiq_end - &imx_ssi_fiq_start);
269
270 return 0;
271}
272
273static void imx_pcm_fiq_free(struct snd_pcm *pcm)
274{
275 mxc_set_irq_fiq(ssi_irq, 0);
276 release_fiq(&fh);
277 imx_pcm_free(pcm);
278}
279
280static struct snd_soc_platform_driver imx_soc_platform_fiq = {
281 .ops = &imx_pcm_ops,
282 .pcm_new = imx_pcm_fiq_new,
283 .pcm_free = imx_pcm_fiq_free,
284};
285
286static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
287{
288 struct imx_ssi *ssi = platform_get_drvdata(pdev);
289 int ret;
290
291 ret = claim_fiq(&fh);
292 if (ret) {
293 dev_err(&pdev->dev, "failed to claim fiq: %d", ret);
294 return ret;
295 }
296
297 mxc_set_irq_fiq(ssi->irq, 1);
298 ssi_irq = ssi->irq;
299
300 imx_pcm_fiq = ssi->irq;
301
302 imx_ssi_fiq_base = (unsigned long)ssi->base;
303
304 ssi->dma_params_tx.burstsize = 4;
305 ssi->dma_params_rx.burstsize = 6;
306
307 ret = snd_soc_register_platform(&pdev->dev, &imx_soc_platform_fiq);
308 if (ret)
309 goto failed_register;
310
311 return 0;
312
313failed_register:
314 mxc_set_irq_fiq(ssi_irq, 0);
315 release_fiq(&fh);
316
317 return ret;
318}
319
320static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
321{
322 snd_soc_unregister_platform(&pdev->dev);
323 return 0;
324}
325
326static struct platform_driver imx_pcm_driver = {
327 .driver = {
328 .name = "imx-fiq-pcm-audio",
329 .owner = THIS_MODULE,
330 },
331
332 .probe = imx_soc_platform_probe,
333 .remove = __devexit_p(imx_soc_platform_remove),
334};
335
336static int __init snd_imx_pcm_init(void)
337{
338 return platform_driver_register(&imx_pcm_driver);
339}
340module_init(snd_imx_pcm_init);
341
342static void __exit snd_imx_pcm_exit(void)
343{
344 platform_driver_unregister(&imx_pcm_driver);
345}
346module_exit(snd_imx_pcm_exit);
diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
new file mode 100644
index 00000000000..10a8e278375
--- /dev/null
+++ b/sound/soc/imx/imx-ssi.c
@@ -0,0 +1,778 @@
1/*
2 * imx-ssi.c -- ALSA Soc Audio Layer
3 *
4 * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
5 *
6 * This code is based on code copyrighted by Freescale,
7 * Liam Girdwood, Javier Martin and probably others.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 *
15 * The i.MX SSI core has some nasty limitations in AC97 mode. While most
16 * sane processor vendors have a FIFO per AC97 slot, the i.MX has only
17 * one FIFO which combines all valid receive slots. We cannot even select
18 * which slots we want to receive. The WM9712 with which this driver
19 * was developed with always sends GPIO status data in slot 12 which
20 * we receive in our (PCM-) data stream. The only chance we have is to
21 * manually skip this data in the FIQ handler. With sampling rates different
22 * from 48000Hz not every frame has valid receive data, so the ratio
23 * between pcm data and GPIO status data changes. Our FIQ handler is not
24 * able to handle this, hence this driver only works with 48000Hz sampling
25 * rate.
26 * Reading and writing AC97 registers is another challenge. The core
27 * provides us status bits when the read register is updated with *another*
28 * value. When we read the same register two times (and the register still
29 * contains the same value) these status bits are not set. We work
30 * around this by not polling these bits but only wait a fixed delay.
31 *
32 */
33
34#include <linux/clk.h>
35#include <linux/delay.h>
36#include <linux/device.h>
37#include <linux/dma-mapping.h>
38#include <linux/init.h>
39#include <linux/interrupt.h>
40#include <linux/module.h>
41#include <linux/platform_device.h>
42#include <linux/slab.h>
43
44#include <sound/core.h>
45#include <sound/initval.h>
46#include <sound/pcm.h>
47#include <sound/pcm_params.h>
48#include <sound/soc.h>
49
50#include <mach/ssi.h>
51#include <mach/hardware.h>
52
53#include "imx-ssi.h"
54
55#define SSI_SACNT_DEFAULT (SSI_SACNT_AC97EN | SSI_SACNT_FV)
56
57/*
58 * SSI Network Mode or TDM slots configuration.
59 * Should only be called when port is inactive (i.e. SSIEN = 0).
60 */
61static int imx_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
62 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
63{
64 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
65 u32 sccr;
66
67 sccr = readl(ssi->base + SSI_STCCR);
68 sccr &= ~SSI_STCCR_DC_MASK;
69 sccr |= SSI_STCCR_DC(slots - 1);
70 writel(sccr, ssi->base + SSI_STCCR);
71
72 sccr = readl(ssi->base + SSI_SRCCR);
73 sccr &= ~SSI_STCCR_DC_MASK;
74 sccr |= SSI_STCCR_DC(slots - 1);
75 writel(sccr, ssi->base + SSI_SRCCR);
76
77 writel(tx_mask, ssi->base + SSI_STMSK);
78 writel(rx_mask, ssi->base + SSI_SRMSK);
79
80 return 0;
81}
82
83/*
84 * SSI DAI format configuration.
85 * Should only be called when port is inactive (i.e. SSIEN = 0).
86 */
87static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
88{
89 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
90 u32 strcr = 0, scr;
91
92 scr = readl(ssi->base + SSI_SCR) & ~(SSI_SCR_SYN | SSI_SCR_NET);
93
94 /* DAI mode */
95 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
96 case SND_SOC_DAIFMT_I2S:
97 /* data on rising edge of bclk, frame low 1clk before data */
98 strcr |= SSI_STCR_TFSI | SSI_STCR_TEFS | SSI_STCR_TXBIT0;
99 scr |= SSI_SCR_NET;
100 if (ssi->flags & IMX_SSI_USE_I2S_SLAVE) {
101 scr &= ~SSI_I2S_MODE_MASK;
102 scr |= SSI_SCR_I2S_MODE_SLAVE;
103 }
104 break;
105 case SND_SOC_DAIFMT_LEFT_J:
106 /* data on rising edge of bclk, frame high with data */
107 strcr |= SSI_STCR_TXBIT0;
108 break;
109 case SND_SOC_DAIFMT_DSP_B:
110 /* data on rising edge of bclk, frame high with data */
111 strcr |= SSI_STCR_TFSL | SSI_STCR_TXBIT0;
112 break;
113 case SND_SOC_DAIFMT_DSP_A:
114 /* data on rising edge of bclk, frame high 1clk before data */
115 strcr |= SSI_STCR_TFSL | SSI_STCR_TEFS;
116 break;
117 }
118
119 /* DAI clock inversion */
120 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
121 case SND_SOC_DAIFMT_IB_IF:
122 strcr |= SSI_STCR_TFSI;
123 strcr &= ~SSI_STCR_TSCKP;
124 break;
125 case SND_SOC_DAIFMT_IB_NF:
126 strcr &= ~(SSI_STCR_TSCKP | SSI_STCR_TFSI);
127 break;
128 case SND_SOC_DAIFMT_NB_IF:
129 strcr |= SSI_STCR_TFSI | SSI_STCR_TSCKP;
130 break;
131 case SND_SOC_DAIFMT_NB_NF:
132 strcr &= ~SSI_STCR_TFSI;
133 strcr |= SSI_STCR_TSCKP;
134 break;
135 }
136
137 /* DAI clock master masks */
138 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
139 case SND_SOC_DAIFMT_CBM_CFM:
140 break;
141 default:
142 /* Master mode not implemented, needs handling of clocks. */
143 return -EINVAL;
144 }
145
146 strcr |= SSI_STCR_TFEN0;
147
148 if (ssi->flags & IMX_SSI_NET)
149 scr |= SSI_SCR_NET;
150 if (ssi->flags & IMX_SSI_SYN)
151 scr |= SSI_SCR_SYN;
152
153 writel(strcr, ssi->base + SSI_STCR);
154 writel(strcr, ssi->base + SSI_SRCR);
155 writel(scr, ssi->base + SSI_SCR);
156
157 return 0;
158}
159
160/*
161 * SSI system clock configuration.
162 * Should only be called when port is inactive (i.e. SSIEN = 0).
163 */
164static int imx_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
165 int clk_id, unsigned int freq, int dir)
166{
167 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
168 u32 scr;
169
170 scr = readl(ssi->base + SSI_SCR);
171
172 switch (clk_id) {
173 case IMX_SSP_SYS_CLK:
174 if (dir == SND_SOC_CLOCK_OUT)
175 scr |= SSI_SCR_SYS_CLK_EN;
176 else
177 scr &= ~SSI_SCR_SYS_CLK_EN;
178 break;
179 default:
180 return -EINVAL;
181 }
182
183 writel(scr, ssi->base + SSI_SCR);
184
185 return 0;
186}
187
188/*
189 * SSI Clock dividers
190 * Should only be called when port is inactive (i.e. SSIEN = 0).
191 */
192static int imx_ssi_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
193 int div_id, int div)
194{
195 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
196 u32 stccr, srccr;
197
198 stccr = readl(ssi->base + SSI_STCCR);
199 srccr = readl(ssi->base + SSI_SRCCR);
200
201 switch (div_id) {
202 case IMX_SSI_TX_DIV_2:
203 stccr &= ~SSI_STCCR_DIV2;
204 stccr |= div;
205 break;
206 case IMX_SSI_TX_DIV_PSR:
207 stccr &= ~SSI_STCCR_PSR;
208 stccr |= div;
209 break;
210 case IMX_SSI_TX_DIV_PM:
211 stccr &= ~0xff;
212 stccr |= SSI_STCCR_PM(div);
213 break;
214 case IMX_SSI_RX_DIV_2:
215 stccr &= ~SSI_STCCR_DIV2;
216 stccr |= div;
217 break;
218 case IMX_SSI_RX_DIV_PSR:
219 stccr &= ~SSI_STCCR_PSR;
220 stccr |= div;
221 break;
222 case IMX_SSI_RX_DIV_PM:
223 stccr &= ~0xff;
224 stccr |= SSI_STCCR_PM(div);
225 break;
226 default:
227 return -EINVAL;
228 }
229
230 writel(stccr, ssi->base + SSI_STCCR);
231 writel(srccr, ssi->base + SSI_SRCCR);
232
233 return 0;
234}
235
236/*
237 * Should only be called when port is inactive (i.e. SSIEN = 0),
238 * although can be called multiple times by upper layers.
239 */
240static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
241 struct snd_pcm_hw_params *params,
242 struct snd_soc_dai *cpu_dai)
243{
244 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
245 struct imx_pcm_dma_params *dma_data;
246 u32 reg, sccr;
247
248 /* Tx/Rx config */
249 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
250 reg = SSI_STCCR;
251 dma_data = &ssi->dma_params_tx;
252 } else {
253 reg = SSI_SRCCR;
254 dma_data = &ssi->dma_params_rx;
255 }
256
257 if (ssi->flags & IMX_SSI_SYN)
258 reg = SSI_STCCR;
259
260 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
261
262 sccr = readl(ssi->base + reg) & ~SSI_STCCR_WL_MASK;
263
264 /* DAI data (word) size */
265 switch (params_format(params)) {
266 case SNDRV_PCM_FORMAT_S16_LE:
267 sccr |= SSI_SRCCR_WL(16);
268 break;
269 case SNDRV_PCM_FORMAT_S20_3LE:
270 sccr |= SSI_SRCCR_WL(20);
271 break;
272 case SNDRV_PCM_FORMAT_S24_LE:
273 sccr |= SSI_SRCCR_WL(24);
274 break;
275 }
276
277 writel(sccr, ssi->base + reg);
278
279 return 0;
280}
281
282static int imx_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
283 struct snd_soc_dai *dai)
284{
285 struct imx_ssi *ssi = snd_soc_dai_get_drvdata(dai);
286 unsigned int sier_bits, sier;
287 unsigned int scr;
288
289 scr = readl(ssi->base + SSI_SCR);
290 sier = readl(ssi->base + SSI_SIER);
291
292 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
293 if (ssi->flags & IMX_SSI_DMA)
294 sier_bits = SSI_SIER_TDMAE;
295 else
296 sier_bits = SSI_SIER_TIE | SSI_SIER_TFE0_EN;
297 } else {
298 if (ssi->flags & IMX_SSI_DMA)
299 sier_bits = SSI_SIER_RDMAE;
300 else
301 sier_bits = SSI_SIER_RIE | SSI_SIER_RFF0_EN;
302 }
303
304 switch (cmd) {
305 case SNDRV_PCM_TRIGGER_START:
306 case SNDRV_PCM_TRIGGER_RESUME:
307 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
308 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
309 scr |= SSI_SCR_TE;
310 else
311 scr |= SSI_SCR_RE;
312 sier |= sier_bits;
313
314 if (++ssi->enabled == 1)
315 scr |= SSI_SCR_SSIEN;
316
317 break;
318
319 case SNDRV_PCM_TRIGGER_STOP:
320 case SNDRV_PCM_TRIGGER_SUSPEND:
321 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
322 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
323 scr &= ~SSI_SCR_TE;
324 else
325 scr &= ~SSI_SCR_RE;
326 sier &= ~sier_bits;
327
328 if (--ssi->enabled == 0)
329 scr &= ~SSI_SCR_SSIEN;
330
331 break;
332 default:
333 return -EINVAL;
334 }
335
336 if (!(ssi->flags & IMX_SSI_USE_AC97))
337 /* rx/tx are always enabled to access ac97 registers */
338 writel(scr, ssi->base + SSI_SCR);
339
340 writel(sier, ssi->base + SSI_SIER);
341
342 return 0;
343}
344
345static struct snd_soc_dai_ops imx_ssi_pcm_dai_ops = {
346 .hw_params = imx_ssi_hw_params,
347 .set_fmt = imx_ssi_set_dai_fmt,
348 .set_clkdiv = imx_ssi_set_dai_clkdiv,
349 .set_sysclk = imx_ssi_set_dai_sysclk,
350 .set_tdm_slot = imx_ssi_set_dai_tdm_slot,
351 .trigger = imx_ssi_trigger,
352};
353
354int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
355 struct vm_area_struct *vma)
356{
357 struct snd_pcm_runtime *runtime = substream->runtime;
358 int ret;
359
360 ret = dma_mmap_coherent(NULL, vma, runtime->dma_area,
361 runtime->dma_addr, runtime->dma_bytes);
362
363 pr_debug("%s: ret: %d %p 0x%08x 0x%08x\n", __func__, ret,
364 runtime->dma_area,
365 runtime->dma_addr,
366 runtime->dma_bytes);
367 return ret;
368}
369EXPORT_SYMBOL_GPL(snd_imx_pcm_mmap);
370
371static int imx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
372{
373 struct snd_pcm_substream *substream = pcm->streams[stream].substream;
374 struct snd_dma_buffer *buf = &substream->dma_buffer;
375 size_t size = IMX_SSI_DMABUF_SIZE;
376
377 buf->dev.type = SNDRV_DMA_TYPE_DEV;
378 buf->dev.dev = pcm->card->dev;
379 buf->private_data = NULL;
380 buf->area = dma_alloc_writecombine(pcm->card->dev, size,
381 &buf->addr, GFP_KERNEL);
382 if (!buf->area)
383 return -ENOMEM;
384 buf->bytes = size;
385
386 return 0;
387}
388
389static u64 imx_pcm_dmamask = DMA_BIT_MASK(32);
390
391int imx_pcm_new(struct snd_soc_pcm_runtime *rtd)
392{
393 struct snd_card *card = rtd->card->snd_card;
394 struct snd_soc_dai *dai = rtd->cpu_dai;
395 struct snd_pcm *pcm = rtd->pcm;
396 int ret = 0;
397
398 if (!card->dev->dma_mask)
399 card->dev->dma_mask = &imx_pcm_dmamask;
400 if (!card->dev->coherent_dma_mask)
401 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
402 if (dai->driver->playback.channels_min) {
403 ret = imx_pcm_preallocate_dma_buffer(pcm,
404 SNDRV_PCM_STREAM_PLAYBACK);
405 if (ret)
406 goto out;
407 }
408
409 if (dai->driver->capture.channels_min) {
410 ret = imx_pcm_preallocate_dma_buffer(pcm,
411 SNDRV_PCM_STREAM_CAPTURE);
412 if (ret)
413 goto out;
414 }
415
416out:
417 return ret;
418}
419EXPORT_SYMBOL_GPL(imx_pcm_new);
420
421void imx_pcm_free(struct snd_pcm *pcm)
422{
423 struct snd_pcm_substream *substream;
424 struct snd_dma_buffer *buf;
425 int stream;
426
427 for (stream = 0; stream < 2; stream++) {
428 substream = pcm->streams[stream].substream;
429 if (!substream)
430 continue;
431
432 buf = &substream->dma_buffer;
433 if (!buf->area)
434 continue;
435
436 dma_free_writecombine(pcm->card->dev, buf->bytes,
437 buf->area, buf->addr);
438 buf->area = NULL;
439 }
440}
441EXPORT_SYMBOL_GPL(imx_pcm_free);
442
443static int imx_ssi_dai_probe(struct snd_soc_dai *dai)
444{
445 struct imx_ssi *ssi = dev_get_drvdata(dai->dev);
446 uint32_t val;
447
448 snd_soc_dai_set_drvdata(dai, ssi);
449
450 val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.burstsize) |
451 SSI_SFCSR_RFWM0(ssi->dma_params_rx.burstsize);
452 writel(val, ssi->base + SSI_SFCSR);
453
454 return 0;
455}
456
457static struct snd_soc_dai_driver imx_ssi_dai = {
458 .probe = imx_ssi_dai_probe,
459 .playback = {
460 .channels_min = 1,
461 .channels_max = 2,
462 .rates = SNDRV_PCM_RATE_8000_96000,
463 .formats = SNDRV_PCM_FMTBIT_S16_LE,
464 },
465 .capture = {
466 .channels_min = 1,
467 .channels_max = 2,
468 .rates = SNDRV_PCM_RATE_8000_96000,
469 .formats = SNDRV_PCM_FMTBIT_S16_LE,
470 },
471 .ops = &imx_ssi_pcm_dai_ops,
472};
473
474static struct snd_soc_dai_driver imx_ac97_dai = {
475 .probe = imx_ssi_dai_probe,
476 .ac97_control = 1,
477 .playback = {
478 .stream_name = "AC97 Playback",
479 .channels_min = 2,
480 .channels_max = 2,
481 .rates = SNDRV_PCM_RATE_48000,
482 .formats = SNDRV_PCM_FMTBIT_S16_LE,
483 },
484 .capture = {
485 .stream_name = "AC97 Capture",
486 .channels_min = 2,
487 .channels_max = 2,
488 .rates = SNDRV_PCM_RATE_48000,
489 .formats = SNDRV_PCM_FMTBIT_S16_LE,
490 },
491 .ops = &imx_ssi_pcm_dai_ops,
492};
493
494static void setup_channel_to_ac97(struct imx_ssi *imx_ssi)
495{
496 void __iomem *base = imx_ssi->base;
497
498 writel(0x0, base + SSI_SCR);
499 writel(0x0, base + SSI_STCR);
500 writel(0x0, base + SSI_SRCR);
501
502 writel(SSI_SCR_SYN | SSI_SCR_NET, base + SSI_SCR);
503
504 writel(SSI_SFCSR_RFWM0(8) |
505 SSI_SFCSR_TFWM0(8) |
506 SSI_SFCSR_RFWM1(8) |
507 SSI_SFCSR_TFWM1(8), base + SSI_SFCSR);
508
509 writel(SSI_STCCR_WL(16) | SSI_STCCR_DC(12), base + SSI_STCCR);
510 writel(SSI_STCCR_WL(16) | SSI_STCCR_DC(12), base + SSI_SRCCR);
511
512 writel(SSI_SCR_SYN | SSI_SCR_NET | SSI_SCR_SSIEN, base + SSI_SCR);
513 writel(SSI_SOR_WAIT(3), base + SSI_SOR);
514
515 writel(SSI_SCR_SYN | SSI_SCR_NET | SSI_SCR_SSIEN |
516 SSI_SCR_TE | SSI_SCR_RE,
517 base + SSI_SCR);
518
519 writel(SSI_SACNT_DEFAULT, base + SSI_SACNT);
520 writel(0xff, base + SSI_SACCDIS);
521 writel(0x300, base + SSI_SACCEN);
522}
523
524static struct imx_ssi *ac97_ssi;
525
526static void imx_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
527 unsigned short val)
528{
529 struct imx_ssi *imx_ssi = ac97_ssi;
530 void __iomem *base = imx_ssi->base;
531 unsigned int lreg;
532 unsigned int lval;
533
534 if (reg > 0x7f)
535 return;
536
537 pr_debug("%s: 0x%02x 0x%04x\n", __func__, reg, val);
538
539 lreg = reg << 12;
540 writel(lreg, base + SSI_SACADD);
541
542 lval = val << 4;
543 writel(lval , base + SSI_SACDAT);
544
545 writel(SSI_SACNT_DEFAULT | SSI_SACNT_WR, base + SSI_SACNT);
546 udelay(100);
547}
548
549static unsigned short imx_ssi_ac97_read(struct snd_ac97 *ac97,
550 unsigned short reg)
551{
552 struct imx_ssi *imx_ssi = ac97_ssi;
553 void __iomem *base = imx_ssi->base;
554
555 unsigned short val = -1;
556 unsigned int lreg;
557
558 lreg = (reg & 0x7f) << 12 ;
559 writel(lreg, base + SSI_SACADD);
560 writel(SSI_SACNT_DEFAULT | SSI_SACNT_RD, base + SSI_SACNT);
561
562 udelay(100);
563
564 val = (readl(base + SSI_SACDAT) >> 4) & 0xffff;
565
566 pr_debug("%s: 0x%02x 0x%04x\n", __func__, reg, val);
567
568 return val;
569}
570
571static void imx_ssi_ac97_reset(struct snd_ac97 *ac97)
572{
573 struct imx_ssi *imx_ssi = ac97_ssi;
574
575 if (imx_ssi->ac97_reset)
576 imx_ssi->ac97_reset(ac97);
577}
578
579static void imx_ssi_ac97_warm_reset(struct snd_ac97 *ac97)
580{
581 struct imx_ssi *imx_ssi = ac97_ssi;
582
583 if (imx_ssi->ac97_warm_reset)
584 imx_ssi->ac97_warm_reset(ac97);
585}
586
587struct snd_ac97_bus_ops soc_ac97_ops = {
588 .read = imx_ssi_ac97_read,
589 .write = imx_ssi_ac97_write,
590 .reset = imx_ssi_ac97_reset,
591 .warm_reset = imx_ssi_ac97_warm_reset
592};
593EXPORT_SYMBOL_GPL(soc_ac97_ops);
594
595static int imx_ssi_probe(struct platform_device *pdev)
596{
597 struct resource *res;
598 struct imx_ssi *ssi;
599 struct imx_ssi_platform_data *pdata = pdev->dev.platform_data;
600 int ret = 0;
601 struct snd_soc_dai_driver *dai;
602
603 ssi = kzalloc(sizeof(*ssi), GFP_KERNEL);
604 if (!ssi)
605 return -ENOMEM;
606 dev_set_drvdata(&pdev->dev, ssi);
607
608 if (pdata) {
609 ssi->ac97_reset = pdata->ac97_reset;
610 ssi->ac97_warm_reset = pdata->ac97_warm_reset;
611 ssi->flags = pdata->flags;
612 }
613
614 ssi->irq = platform_get_irq(pdev, 0);
615
616 ssi->clk = clk_get(&pdev->dev, NULL);
617 if (IS_ERR(ssi->clk)) {
618 ret = PTR_ERR(ssi->clk);
619 dev_err(&pdev->dev, "Cannot get the clock: %d\n",
620 ret);
621 goto failed_clk;
622 }
623 clk_enable(ssi->clk);
624
625 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
626 if (!res) {
627 ret = -ENODEV;
628 goto failed_get_resource;
629 }
630
631 if (!request_mem_region(res->start, resource_size(res), DRV_NAME)) {
632 dev_err(&pdev->dev, "request_mem_region failed\n");
633 ret = -EBUSY;
634 goto failed_get_resource;
635 }
636
637 ssi->base = ioremap(res->start, resource_size(res));
638 if (!ssi->base) {
639 dev_err(&pdev->dev, "ioremap failed\n");
640 ret = -ENODEV;
641 goto failed_ioremap;
642 }
643
644 if (ssi->flags & IMX_SSI_USE_AC97) {
645 if (ac97_ssi) {
646 ret = -EBUSY;
647 goto failed_ac97;
648 }
649 ac97_ssi = ssi;
650 setup_channel_to_ac97(ssi);
651 dai = &imx_ac97_dai;
652 } else
653 dai = &imx_ssi_dai;
654
655 writel(0x0, ssi->base + SSI_SIER);
656
657 ssi->dma_params_rx.dma_addr = res->start + SSI_SRX0;
658 ssi->dma_params_tx.dma_addr = res->start + SSI_STX0;
659
660 ssi->dma_params_tx.burstsize = 4;
661 ssi->dma_params_rx.burstsize = 4;
662
663 res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0");
664 if (res)
665 ssi->dma_params_tx.dma = res->start;
666
667 res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx0");
668 if (res)
669 ssi->dma_params_rx.dma = res->start;
670
671 platform_set_drvdata(pdev, ssi);
672
673 ret = snd_soc_register_dai(&pdev->dev, dai);
674 if (ret) {
675 dev_err(&pdev->dev, "register DAI failed\n");
676 goto failed_register;
677 }
678
679 ssi->soc_platform_pdev_fiq = platform_device_alloc("imx-fiq-pcm-audio", pdev->id);
680 if (!ssi->soc_platform_pdev_fiq) {
681 ret = -ENOMEM;
682 goto failed_pdev_fiq_alloc;
683 }
684
685 platform_set_drvdata(ssi->soc_platform_pdev_fiq, ssi);
686 ret = platform_device_add(ssi->soc_platform_pdev_fiq);
687 if (ret) {
688 dev_err(&pdev->dev, "failed to add platform device\n");
689 goto failed_pdev_fiq_add;
690 }
691
692 ssi->soc_platform_pdev = platform_device_alloc("imx-pcm-audio", pdev->id);
693 if (!ssi->soc_platform_pdev) {
694 ret = -ENOMEM;
695 goto failed_pdev_alloc;
696 }
697
698 platform_set_drvdata(ssi->soc_platform_pdev, ssi);
699 ret = platform_device_add(ssi->soc_platform_pdev);
700 if (ret) {
701 dev_err(&pdev->dev, "failed to add platform device\n");
702 goto failed_pdev_add;
703 }
704
705 return 0;
706
707failed_pdev_add:
708 platform_device_put(ssi->soc_platform_pdev);
709failed_pdev_alloc:
710 platform_device_del(ssi->soc_platform_pdev_fiq);
711failed_pdev_fiq_add:
712 platform_device_put(ssi->soc_platform_pdev_fiq);
713failed_pdev_fiq_alloc:
714 snd_soc_unregister_dai(&pdev->dev);
715failed_register:
716failed_ac97:
717 iounmap(ssi->base);
718failed_ioremap:
719 release_mem_region(res->start, resource_size(res));
720failed_get_resource:
721 clk_disable(ssi->clk);
722 clk_put(ssi->clk);
723failed_clk:
724 kfree(ssi);
725
726 return ret;
727}
728
729static int __devexit imx_ssi_remove(struct platform_device *pdev)
730{
731 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
732 struct imx_ssi *ssi = platform_get_drvdata(pdev);
733
734 platform_device_unregister(ssi->soc_platform_pdev);
735 platform_device_unregister(ssi->soc_platform_pdev_fiq);
736
737 snd_soc_unregister_dai(&pdev->dev);
738
739 if (ssi->flags & IMX_SSI_USE_AC97)
740 ac97_ssi = NULL;
741
742 iounmap(ssi->base);
743 release_mem_region(res->start, resource_size(res));
744 clk_disable(ssi->clk);
745 clk_put(ssi->clk);
746 kfree(ssi);
747
748 return 0;
749}
750
751static struct platform_driver imx_ssi_driver = {
752 .probe = imx_ssi_probe,
753 .remove = __devexit_p(imx_ssi_remove),
754
755 .driver = {
756 .name = "imx-ssi",
757 .owner = THIS_MODULE,
758 },
759};
760
761static int __init imx_ssi_init(void)
762{
763 return platform_driver_register(&imx_ssi_driver);
764}
765
766static void __exit imx_ssi_exit(void)
767{
768 platform_driver_unregister(&imx_ssi_driver);
769}
770
771module_init(imx_ssi_init);
772module_exit(imx_ssi_exit);
773
774/* Module information */
775MODULE_AUTHOR("Sascha Hauer, <s.hauer@pengutronix.de>");
776MODULE_DESCRIPTION("i.MX I2S/ac97 SoC Interface");
777MODULE_LICENSE("GPL");
778MODULE_ALIAS("platform:imx-ssi");
diff --git a/sound/soc/imx/imx-ssi.h b/sound/soc/imx/imx-ssi.h
new file mode 100644
index 00000000000..0a84cec3599
--- /dev/null
+++ b/sound/soc/imx/imx-ssi.h
@@ -0,0 +1,236 @@
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 _IMX_SSI_H
8#define _IMX_SSI_H
9
10#define SSI_STX0 0x00
11#define SSI_STX1 0x04
12#define SSI_SRX0 0x08
13#define SSI_SRX1 0x0c
14
15#define SSI_SCR 0x10
16#define SSI_SCR_CLK_IST (1 << 9)
17#define SSI_SCR_CLK_IST_SHIFT 9
18#define SSI_SCR_TCH_EN (1 << 8)
19#define SSI_SCR_SYS_CLK_EN (1 << 7)
20#define SSI_SCR_I2S_MODE_NORM (0 << 5)
21#define SSI_SCR_I2S_MODE_MSTR (1 << 5)
22#define SSI_SCR_I2S_MODE_SLAVE (2 << 5)
23#define SSI_I2S_MODE_MASK (3 << 5)
24#define SSI_SCR_SYN (1 << 4)
25#define SSI_SCR_NET (1 << 3)
26#define SSI_SCR_RE (1 << 2)
27#define SSI_SCR_TE (1 << 1)
28#define SSI_SCR_SSIEN (1 << 0)
29
30#define SSI_SISR 0x14
31#define SSI_SISR_MASK ((1 << 19) - 1)
32#define SSI_SISR_CMDAU (1 << 18)
33#define SSI_SISR_CMDDU (1 << 17)
34#define SSI_SISR_RXT (1 << 16)
35#define SSI_SISR_RDR1 (1 << 15)
36#define SSI_SISR_RDR0 (1 << 14)
37#define SSI_SISR_TDE1 (1 << 13)
38#define SSI_SISR_TDE0 (1 << 12)
39#define SSI_SISR_ROE1 (1 << 11)
40#define SSI_SISR_ROE0 (1 << 10)
41#define SSI_SISR_TUE1 (1 << 9)
42#define SSI_SISR_TUE0 (1 << 8)
43#define SSI_SISR_TFS (1 << 7)
44#define SSI_SISR_RFS (1 << 6)
45#define SSI_SISR_TLS (1 << 5)
46#define SSI_SISR_RLS (1 << 4)
47#define SSI_SISR_RFF1 (1 << 3)
48#define SSI_SISR_RFF0 (1 << 2)
49#define SSI_SISR_TFE1 (1 << 1)
50#define SSI_SISR_TFE0 (1 << 0)
51
52#define SSI_SIER 0x18
53#define SSI_SIER_RDMAE (1 << 22)
54#define SSI_SIER_RIE (1 << 21)
55#define SSI_SIER_TDMAE (1 << 20)
56#define SSI_SIER_TIE (1 << 19)
57#define SSI_SIER_CMDAU_EN (1 << 18)
58#define SSI_SIER_CMDDU_EN (1 << 17)
59#define SSI_SIER_RXT_EN (1 << 16)
60#define SSI_SIER_RDR1_EN (1 << 15)
61#define SSI_SIER_RDR0_EN (1 << 14)
62#define SSI_SIER_TDE1_EN (1 << 13)
63#define SSI_SIER_TDE0_EN (1 << 12)
64#define SSI_SIER_ROE1_EN (1 << 11)
65#define SSI_SIER_ROE0_EN (1 << 10)
66#define SSI_SIER_TUE1_EN (1 << 9)
67#define SSI_SIER_TUE0_EN (1 << 8)
68#define SSI_SIER_TFS_EN (1 << 7)
69#define SSI_SIER_RFS_EN (1 << 6)
70#define SSI_SIER_TLS_EN (1 << 5)
71#define SSI_SIER_RLS_EN (1 << 4)
72#define SSI_SIER_RFF1_EN (1 << 3)
73#define SSI_SIER_RFF0_EN (1 << 2)
74#define SSI_SIER_TFE1_EN (1 << 1)
75#define SSI_SIER_TFE0_EN (1 << 0)
76
77#define SSI_STCR 0x1c
78#define SSI_STCR_TXBIT0 (1 << 9)
79#define SSI_STCR_TFEN1 (1 << 8)
80#define SSI_STCR_TFEN0 (1 << 7)
81#define SSI_FIFO_ENABLE_0_SHIFT 7
82#define SSI_STCR_TFDIR (1 << 6)
83#define SSI_STCR_TXDIR (1 << 5)
84#define SSI_STCR_TSHFD (1 << 4)
85#define SSI_STCR_TSCKP (1 << 3)
86#define SSI_STCR_TFSI (1 << 2)
87#define SSI_STCR_TFSL (1 << 1)
88#define SSI_STCR_TEFS (1 << 0)
89
90#define SSI_SRCR 0x20
91#define SSI_SRCR_RXBIT0 (1 << 9)
92#define SSI_SRCR_RFEN1 (1 << 8)
93#define SSI_SRCR_RFEN0 (1 << 7)
94#define SSI_FIFO_ENABLE_0_SHIFT 7
95#define SSI_SRCR_RFDIR (1 << 6)
96#define SSI_SRCR_RXDIR (1 << 5)
97#define SSI_SRCR_RSHFD (1 << 4)
98#define SSI_SRCR_RSCKP (1 << 3)
99#define SSI_SRCR_RFSI (1 << 2)
100#define SSI_SRCR_RFSL (1 << 1)
101#define SSI_SRCR_REFS (1 << 0)
102
103#define SSI_SRCCR 0x28
104#define SSI_SRCCR_DIV2 (1 << 18)
105#define SSI_SRCCR_PSR (1 << 17)
106#define SSI_SRCCR_WL(x) ((((x) - 2) >> 1) << 13)
107#define SSI_SRCCR_DC(x) (((x) & 0x1f) << 8)
108#define SSI_SRCCR_PM(x) (((x) & 0xff) << 0)
109#define SSI_SRCCR_WL_MASK (0xf << 13)
110#define SSI_SRCCR_DC_MASK (0x1f << 8)
111#define SSI_SRCCR_PM_MASK (0xff << 0)
112
113#define SSI_STCCR 0x24
114#define SSI_STCCR_DIV2 (1 << 18)
115#define SSI_STCCR_PSR (1 << 17)
116#define SSI_STCCR_WL(x) ((((x) - 2) >> 1) << 13)
117#define SSI_STCCR_DC(x) (((x) & 0x1f) << 8)
118#define SSI_STCCR_PM(x) (((x) & 0xff) << 0)
119#define SSI_STCCR_WL_MASK (0xf << 13)
120#define SSI_STCCR_DC_MASK (0x1f << 8)
121#define SSI_STCCR_PM_MASK (0xff << 0)
122
123#define SSI_SFCSR 0x2c
124#define SSI_SFCSR_RFCNT1(x) (((x) & 0xf) << 28)
125#define SSI_RX_FIFO_1_COUNT_SHIFT 28
126#define SSI_SFCSR_TFCNT1(x) (((x) & 0xf) << 24)
127#define SSI_TX_FIFO_1_COUNT_SHIFT 24
128#define SSI_SFCSR_RFWM1(x) (((x) & 0xf) << 20)
129#define SSI_SFCSR_TFWM1(x) (((x) & 0xf) << 16)
130#define SSI_SFCSR_RFCNT0(x) (((x) & 0xf) << 12)
131#define SSI_RX_FIFO_0_COUNT_SHIFT 12
132#define SSI_SFCSR_TFCNT0(x) (((x) & 0xf) << 8)
133#define SSI_TX_FIFO_0_COUNT_SHIFT 8
134#define SSI_SFCSR_RFWM0(x) (((x) & 0xf) << 4)
135#define SSI_SFCSR_TFWM0(x) (((x) & 0xf) << 0)
136#define SSI_SFCSR_RFWM0_MASK (0xf << 4)
137#define SSI_SFCSR_TFWM0_MASK (0xf << 0)
138
139#define SSI_STR 0x30
140#define SSI_STR_TEST (1 << 15)
141#define SSI_STR_RCK2TCK (1 << 14)
142#define SSI_STR_RFS2TFS (1 << 13)
143#define SSI_STR_RXSTATE(x) (((x) & 0xf) << 8)
144#define SSI_STR_TXD2RXD (1 << 7)
145#define SSI_STR_TCK2RCK (1 << 6)
146#define SSI_STR_TFS2RFS (1 << 5)
147#define SSI_STR_TXSTATE(x) (((x) & 0xf) << 0)
148
149#define SSI_SOR 0x34
150#define SSI_SOR_CLKOFF (1 << 6)
151#define SSI_SOR_RX_CLR (1 << 5)
152#define SSI_SOR_TX_CLR (1 << 4)
153#define SSI_SOR_INIT (1 << 3)
154#define SSI_SOR_WAIT(x) (((x) & 0x3) << 1)
155#define SSI_SOR_WAIT_MASK (0x3 << 1)
156#define SSI_SOR_SYNRST (1 << 0)
157
158#define SSI_SACNT 0x38
159#define SSI_SACNT_FRDIV(x) (((x) & 0x3f) << 5)
160#define SSI_SACNT_WR (1 << 4)
161#define SSI_SACNT_RD (1 << 3)
162#define SSI_SACNT_TIF (1 << 2)
163#define SSI_SACNT_FV (1 << 1)
164#define SSI_SACNT_AC97EN (1 << 0)
165
166#define SSI_SACADD 0x3c
167#define SSI_SACDAT 0x40
168#define SSI_SATAG 0x44
169#define SSI_STMSK 0x48
170#define SSI_SRMSK 0x4c
171#define SSI_SACCST 0x50
172#define SSI_SACCEN 0x54
173#define SSI_SACCDIS 0x58
174
175/* SSI clock sources */
176#define IMX_SSP_SYS_CLK 0
177
178/* SSI audio dividers */
179#define IMX_SSI_TX_DIV_2 0
180#define IMX_SSI_TX_DIV_PSR 1
181#define IMX_SSI_TX_DIV_PM 2
182#define IMX_SSI_RX_DIV_2 3
183#define IMX_SSI_RX_DIV_PSR 4
184#define IMX_SSI_RX_DIV_PM 5
185
186#define DRV_NAME "imx-ssi"
187
188#include <linux/dmaengine.h>
189#include <mach/dma.h>
190
191struct imx_pcm_dma_params {
192 int dma;
193 unsigned long dma_addr;
194 int burstsize;
195};
196
197struct imx_ssi {
198 struct platform_device *ac97_dev;
199
200 struct snd_soc_dai *imx_ac97;
201 struct clk *clk;
202 void __iomem *base;
203 int irq;
204 int fiq_enable;
205 unsigned int offset;
206
207 unsigned int flags;
208
209 void (*ac97_reset) (struct snd_ac97 *ac97);
210 void (*ac97_warm_reset)(struct snd_ac97 *ac97);
211
212 struct imx_pcm_dma_params dma_params_rx;
213 struct imx_pcm_dma_params dma_params_tx;
214
215 int enabled;
216
217 struct platform_device *soc_platform_pdev;
218 struct platform_device *soc_platform_pdev_fiq;
219};
220
221struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev,
222 struct imx_ssi *ssi);
223void imx_ssi_fiq_exit(struct platform_device *pdev, struct imx_ssi *ssi);
224struct snd_soc_platform *imx_ssi_dma_mx2_init(struct platform_device *pdev,
225 struct imx_ssi *ssi);
226
227int snd_imx_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
228int imx_pcm_new(struct snd_soc_pcm_runtime *rtd);
229void imx_pcm_free(struct snd_pcm *pcm);
230
231/*
232 * Do not change this as the FIQ handler depends on this size
233 */
234#define IMX_SSI_DMABUF_SIZE (64 * 1024)
235
236#endif /* _IMX_SSI_H */
diff --git a/sound/soc/imx/mx27vis-aic32x4.c b/sound/soc/imx/mx27vis-aic32x4.c
new file mode 100644
index 00000000000..054110b91d4
--- /dev/null
+++ b/sound/soc/imx/mx27vis-aic32x4.c
@@ -0,0 +1,137 @@
1/*
2 * mx27vis-aic32x4.c
3 *
4 * Copyright 2011 Vista Silicon S.L.
5 *
6 * Author: Javier Martin <javier.martin@vista-silicon.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301, USA.
22 */
23
24#include <linux/module.h>
25#include <linux/moduleparam.h>
26#include <linux/device.h>
27#include <linux/i2c.h>
28#include <sound/core.h>
29#include <sound/pcm.h>
30#include <sound/soc.h>
31#include <sound/soc-dapm.h>
32#include <asm/mach-types.h>
33#include <mach/audmux.h>
34
35#include "../codecs/tlv320aic32x4.h"
36#include "imx-ssi.h"
37
38static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
39 struct snd_pcm_hw_params *params)
40{
41 struct snd_soc_pcm_runtime *rtd = substream->private_data;
42 struct snd_soc_dai *codec_dai = rtd->codec_dai;
43 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
44 int ret;
45 u32 dai_format;
46
47 dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
48 SND_SOC_DAIFMT_CBM_CFM;
49
50 /* set codec DAI configuration */
51 snd_soc_dai_set_fmt(codec_dai, dai_format);
52
53 /* set cpu DAI configuration */
54 snd_soc_dai_set_fmt(cpu_dai, dai_format);
55
56 ret = snd_soc_dai_set_sysclk(codec_dai, 0,
57 25000000, SND_SOC_CLOCK_OUT);
58 if (ret) {
59 pr_err("%s: failed setting codec sysclk\n", __func__);
60 return ret;
61 }
62
63 ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
64 SND_SOC_CLOCK_IN);
65 if (ret) {
66 pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
67 return ret;
68 }
69
70 return 0;
71}
72
73static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
74 .hw_params = mx27vis_aic32x4_hw_params,
75};
76
77static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
78 .name = "tlv320aic32x4",
79 .stream_name = "TLV320AIC32X4",
80 .codec_dai_name = "tlv320aic32x4-hifi",
81 .platform_name = "imx-pcm-audio.0",
82 .codec_name = "tlv320aic32x4.0-0018",
83 .cpu_dai_name = "imx-ssi.0",
84 .ops = &mx27vis_aic32x4_snd_ops,
85};
86
87static struct snd_soc_card mx27vis_aic32x4 = {
88 .name = "visstrim_m10-audio",
89 .dai_link = &mx27vis_aic32x4_dai,
90 .num_links = 1,
91};
92
93static struct platform_device *mx27vis_aic32x4_snd_device;
94
95static int __init mx27vis_aic32x4_init(void)
96{
97 int ret;
98
99 mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
100 if (!mx27vis_aic32x4_snd_device)
101 return -ENOMEM;
102
103 platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
104 ret = platform_device_add(mx27vis_aic32x4_snd_device);
105
106 if (ret) {
107 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
108 platform_device_put(mx27vis_aic32x4_snd_device);
109 }
110
111 /* Connect SSI0 as clock slave to SSI1 external pins */
112 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
113 MXC_AUDMUX_V1_PCR_SYN |
114 MXC_AUDMUX_V1_PCR_TFSDIR |
115 MXC_AUDMUX_V1_PCR_TCLKDIR |
116 MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
117 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
118 );
119 mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
120 MXC_AUDMUX_V1_PCR_SYN |
121 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
122 );
123
124 return ret;
125}
126
127static void __exit mx27vis_aic32x4_exit(void)
128{
129 platform_device_unregister(mx27vis_aic32x4_snd_device);
130}
131
132module_init(mx27vis_aic32x4_init);
133module_exit(mx27vis_aic32x4_exit);
134
135MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
136MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
137MODULE_LICENSE("GPL");
diff --git a/sound/soc/imx/phycore-ac97.c b/sound/soc/imx/phycore-ac97.c
new file mode 100644
index 00000000000..a7deb5cb243
--- /dev/null
+++ b/sound/soc/imx/phycore-ac97.c
@@ -0,0 +1,99 @@
1/*
2 * phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
3 *
4 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 */
12
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/device.h>
16#include <linux/i2c.h>
17#include <sound/core.h>
18#include <sound/pcm.h>
19#include <sound/soc.h>
20#include <asm/mach-types.h>
21
22static struct snd_soc_card imx_phycore;
23
24static struct snd_soc_ops imx_phycore_hifi_ops = {
25};
26
27static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
28 {
29 .name = "HiFi",
30 .stream_name = "HiFi",
31 .codec_dai_name = "wm9712-hifi",
32 .codec_name = "wm9712-codec",
33 .cpu_dai_name = "imx-ssi.0",
34 .platform_name = "imx-fiq-pcm-audio.0",
35 .ops = &imx_phycore_hifi_ops,
36 },
37};
38
39static struct snd_soc_card imx_phycore = {
40 .name = "PhyCORE-ac97-audio",
41 .dai_link = imx_phycore_dai_ac97,
42 .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
43};
44
45static struct platform_device *imx_phycore_snd_ac97_device;
46static struct platform_device *imx_phycore_snd_device;
47
48static int __init imx_phycore_init(void)
49{
50 int ret;
51
52 if (!machine_is_pcm043() && !machine_is_pca100())
53 /* return happy. We might run on a totally different machine */
54 return 0;
55
56 imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
57 if (!imx_phycore_snd_ac97_device)
58 return -ENOMEM;
59
60 platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
61 ret = platform_device_add(imx_phycore_snd_ac97_device);
62 if (ret)
63 goto fail1;
64
65 imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
66 if (!imx_phycore_snd_device) {
67 ret = -ENOMEM;
68 goto fail2;
69 }
70 ret = platform_device_add(imx_phycore_snd_device);
71
72 if (ret) {
73 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
74 goto fail3;
75 }
76
77 return 0;
78
79fail3:
80 platform_device_put(imx_phycore_snd_device);
81fail2:
82 platform_device_del(imx_phycore_snd_ac97_device);
83fail1:
84 platform_device_put(imx_phycore_snd_ac97_device);
85 return ret;
86}
87
88static void __exit imx_phycore_exit(void)
89{
90 platform_device_unregister(imx_phycore_snd_device);
91 platform_device_unregister(imx_phycore_snd_ac97_device);
92}
93
94late_initcall(imx_phycore_init);
95module_exit(imx_phycore_exit);
96
97MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
98MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
99MODULE_LICENSE("GPL");
diff --git a/sound/soc/imx/wm1133-ev1.c b/sound/soc/imx/wm1133-ev1.c
new file mode 100644
index 00000000000..75b4c72787e
--- /dev/null
+++ b/sound/soc/imx/wm1133-ev1.c
@@ -0,0 +1,303 @@
1/*
2 * wm1133-ev1.c - Audio for WM1133-EV1 on i.MX31ADS
3 *
4 * Copyright (c) 2010 Wolfson Microelectronics plc
5 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
6 *
7 * Based on an earlier driver for the same hardware by Liam Girdwood.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
15#include <linux/platform_device.h>
16#include <linux/clk.h>
17#include <sound/core.h>
18#include <sound/jack.h>
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22
23#include <mach/audmux.h>
24
25#include "imx-ssi.h"
26#include "../codecs/wm8350.h"
27
28/* There is a silicon mic on the board optionally connected via a solder pad
29 * SP1. Define this to enable it.
30 */
31#undef USE_SIMIC
32
33struct _wm8350_audio {
34 unsigned int channels;
35 snd_pcm_format_t format;
36 unsigned int rate;
37 unsigned int sysclk;
38 unsigned int bclkdiv;
39 unsigned int clkdiv;
40 unsigned int lr_rate;
41};
42
43/* in order of power consumption per rate (lowest first) */
44static const struct _wm8350_audio wm8350_audio[] = {
45 /* 16bit mono modes */
46 {1, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000 >> 1,
47 WM8350_BCLK_DIV_48, WM8350_DACDIV_3, 16,},
48
49 /* 16 bit stereo modes */
50 {2, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000,
51 WM8350_BCLK_DIV_48, WM8350_DACDIV_6, 32,},
52 {2, SNDRV_PCM_FORMAT_S16_LE, 16000, 12288000,
53 WM8350_BCLK_DIV_24, WM8350_DACDIV_3, 32,},
54 {2, SNDRV_PCM_FORMAT_S16_LE, 32000, 12288000,
55 WM8350_BCLK_DIV_12, WM8350_DACDIV_1_5, 32,},
56 {2, SNDRV_PCM_FORMAT_S16_LE, 48000, 12288000,
57 WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
58 {2, SNDRV_PCM_FORMAT_S16_LE, 96000, 24576000,
59 WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
60 {2, SNDRV_PCM_FORMAT_S16_LE, 11025, 11289600,
61 WM8350_BCLK_DIV_32, WM8350_DACDIV_4, 32,},
62 {2, SNDRV_PCM_FORMAT_S16_LE, 22050, 11289600,
63 WM8350_BCLK_DIV_16, WM8350_DACDIV_2, 32,},
64 {2, SNDRV_PCM_FORMAT_S16_LE, 44100, 11289600,
65 WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
66 {2, SNDRV_PCM_FORMAT_S16_LE, 88200, 22579200,
67 WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
68
69 /* 24bit stereo modes */
70 {2, SNDRV_PCM_FORMAT_S24_LE, 48000, 12288000,
71 WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
72 {2, SNDRV_PCM_FORMAT_S24_LE, 96000, 24576000,
73 WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
74 {2, SNDRV_PCM_FORMAT_S24_LE, 44100, 11289600,
75 WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
76 {2, SNDRV_PCM_FORMAT_S24_LE, 88200, 22579200,
77 WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
78};
79
80static int wm1133_ev1_hw_params(struct snd_pcm_substream *substream,
81 struct snd_pcm_hw_params *params)
82{
83 struct snd_soc_pcm_runtime *rtd = substream->private_data;
84 struct snd_soc_dai *codec_dai = rtd->codec_dai;
85 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
86 int i, found = 0;
87 snd_pcm_format_t format = params_format(params);
88 unsigned int rate = params_rate(params);
89 unsigned int channels = params_channels(params);
90 u32 dai_format;
91
92 /* find the correct audio parameters */
93 for (i = 0; i < ARRAY_SIZE(wm8350_audio); i++) {
94 if (rate == wm8350_audio[i].rate &&
95 format == wm8350_audio[i].format &&
96 channels == wm8350_audio[i].channels) {
97 found = 1;
98 break;
99 }
100 }
101 if (!found)
102 return -EINVAL;
103
104 /* codec FLL input is 14.75 MHz from MCLK */
105 snd_soc_dai_set_pll(codec_dai, 0, 0, 14750000, wm8350_audio[i].sysclk);
106
107 dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
108 SND_SOC_DAIFMT_CBM_CFM;
109
110 /* set codec DAI configuration */
111 snd_soc_dai_set_fmt(codec_dai, dai_format);
112
113 /* set cpu DAI configuration */
114 snd_soc_dai_set_fmt(cpu_dai, dai_format);
115
116 /* TODO: The SSI driver should figure this out for us */
117 switch (channels) {
118 case 2:
119 snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
120 break;
121 case 1:
122 snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffe, 0xffffffe, 1, 0);
123 break;
124 default:
125 return -EINVAL;
126 }
127
128 /* set MCLK as the codec system clock for DAC and ADC */
129 snd_soc_dai_set_sysclk(codec_dai, WM8350_MCLK_SEL_PLL_MCLK,
130 wm8350_audio[i].sysclk, SND_SOC_CLOCK_IN);
131
132 /* set codec BCLK division for sample rate */
133 snd_soc_dai_set_clkdiv(codec_dai, WM8350_BCLK_CLKDIV,
134 wm8350_audio[i].bclkdiv);
135
136 /* DAI is synchronous and clocked with DAC LRCLK & ADC LRC */
137 snd_soc_dai_set_clkdiv(codec_dai,
138 WM8350_DACLR_CLKDIV, wm8350_audio[i].lr_rate);
139 snd_soc_dai_set_clkdiv(codec_dai,
140 WM8350_ADCLR_CLKDIV, wm8350_audio[i].lr_rate);
141
142 /* now configure DAC and ADC clocks */
143 snd_soc_dai_set_clkdiv(codec_dai,
144 WM8350_DAC_CLKDIV, wm8350_audio[i].clkdiv);
145
146 snd_soc_dai_set_clkdiv(codec_dai,
147 WM8350_ADC_CLKDIV, wm8350_audio[i].clkdiv);
148
149 return 0;
150}
151
152static struct snd_soc_ops wm1133_ev1_ops = {
153 .hw_params = wm1133_ev1_hw_params,
154};
155
156static const struct snd_soc_dapm_widget wm1133_ev1_widgets[] = {
157#ifdef USE_SIMIC
158 SND_SOC_DAPM_MIC("SiMIC", NULL),
159#endif
160 SND_SOC_DAPM_MIC("Mic1 Jack", NULL),
161 SND_SOC_DAPM_MIC("Mic2 Jack", NULL),
162 SND_SOC_DAPM_LINE("Line In Jack", NULL),
163 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
164 SND_SOC_DAPM_HP("Headphone Jack", NULL),
165};
166
167/* imx32ads soc_card audio map */
168static const struct snd_soc_dapm_route wm1133_ev1_map[] = {
169
170#ifdef USE_SIMIC
171 /* SiMIC --> IN1LN (with automatic bias) via SP1 */
172 { "IN1LN", NULL, "Mic Bias" },
173 { "Mic Bias", NULL, "SiMIC" },
174#endif
175
176 /* Mic 1 Jack --> IN1LN and IN1LP (with automatic bias) */
177 { "IN1LN", NULL, "Mic Bias" },
178 { "IN1LP", NULL, "Mic1 Jack" },
179 { "Mic Bias", NULL, "Mic1 Jack" },
180
181 /* Mic 2 Jack --> IN1RN and IN1RP (with automatic bias) */
182 { "IN1RN", NULL, "Mic Bias" },
183 { "IN1RP", NULL, "Mic2 Jack" },
184 { "Mic Bias", NULL, "Mic2 Jack" },
185
186 /* Line in Jack --> AUX (L+R) */
187 { "IN3R", NULL, "Line In Jack" },
188 { "IN3L", NULL, "Line In Jack" },
189
190 /* Out1 --> Headphone Jack */
191 { "Headphone Jack", NULL, "OUT1R" },
192 { "Headphone Jack", NULL, "OUT1L" },
193
194 /* Out1 --> Line Out Jack */
195 { "Line Out Jack", NULL, "OUT2R" },
196 { "Line Out Jack", NULL, "OUT2L" },
197};
198
199static struct snd_soc_jack hp_jack;
200
201static struct snd_soc_jack_pin hp_jack_pins[] = {
202 { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE },
203};
204
205static struct snd_soc_jack mic_jack;
206
207static struct snd_soc_jack_pin mic_jack_pins[] = {
208 { .pin = "Mic1 Jack", .mask = SND_JACK_MICROPHONE },
209 { .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE },
210};
211
212static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd)
213{
214 struct snd_soc_codec *codec = rtd->codec;
215 struct snd_soc_dapm_context *dapm = &codec->dapm;
216
217 snd_soc_dapm_new_controls(dapm, wm1133_ev1_widgets,
218 ARRAY_SIZE(wm1133_ev1_widgets));
219
220 snd_soc_dapm_add_routes(dapm, wm1133_ev1_map,
221 ARRAY_SIZE(wm1133_ev1_map));
222
223 /* Headphone jack detection */
224 snd_soc_jack_new(codec, "Headphone", SND_JACK_HEADPHONE, &hp_jack);
225 snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
226 hp_jack_pins);
227 wm8350_hp_jack_detect(codec, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE);
228
229 /* Microphone jack detection */
230 snd_soc_jack_new(codec, "Microphone",
231 SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack);
232 snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
233 mic_jack_pins);
234 wm8350_mic_jack_detect(codec, &mic_jack, SND_JACK_MICROPHONE,
235 SND_JACK_BTN_0);
236
237 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
238
239 return 0;
240}
241
242
243static struct snd_soc_dai_link wm1133_ev1_dai = {
244 .name = "WM1133-EV1",
245 .stream_name = "Audio",
246 .cpu_dai_name = "imx-ssi.0",
247 .codec_dai_name = "wm8350-hifi",
248 .platform_name = "imx-fiq-pcm-audio.0",
249 .codec_name = "wm8350-codec.0-0x1a",
250 .init = wm1133_ev1_init,
251 .ops = &wm1133_ev1_ops,
252 .symmetric_rates = 1,
253};
254
255static struct snd_soc_card wm1133_ev1 = {
256 .name = "WM1133-EV1",
257 .dai_link = &wm1133_ev1_dai,
258 .num_links = 1,
259};
260
261static struct platform_device *wm1133_ev1_snd_device;
262
263static int __init wm1133_ev1_audio_init(void)
264{
265 int ret;
266 unsigned int ptcr, pdcr;
267
268 /* SSI0 mastered by port 5 */
269 ptcr = MXC_AUDMUX_V2_PTCR_SYN |
270 MXC_AUDMUX_V2_PTCR_TFSDIR |
271 MXC_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT5_SSI_PINS_5) |
272 MXC_AUDMUX_V2_PTCR_TCLKDIR |
273 MXC_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
274 pdcr = MXC_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
275 mxc_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0, ptcr, pdcr);
276
277 ptcr = MXC_AUDMUX_V2_PTCR_SYN;
278 pdcr = MXC_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0);
279 mxc_audmux_v2_configure_port(MX31_AUDMUX_PORT5_SSI_PINS_5, ptcr, pdcr);
280
281 wm1133_ev1_snd_device = platform_device_alloc("soc-audio", -1);
282 if (!wm1133_ev1_snd_device)
283 return -ENOMEM;
284
285 platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1);
286 ret = platform_device_add(wm1133_ev1_snd_device);
287
288 if (ret)
289 platform_device_put(wm1133_ev1_snd_device);
290
291 return ret;
292}
293module_init(wm1133_ev1_audio_init);
294
295static void __exit wm1133_ev1_audio_exit(void)
296{
297 platform_device_unregister(wm1133_ev1_snd_device);
298}
299module_exit(wm1133_ev1_audio_exit);
300
301MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
302MODULE_DESCRIPTION("Audio for WM1133-EV1 on i.MX31ADS");
303MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-14 11:27:23 -0500