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Diffstat (limited to 'sound/soc/s3c24xx/s3c64xx-i2s.c')
-rw-r--r--sound/soc/s3c24xx/s3c64xx-i2s.c242
1 files changed, 0 insertions, 242 deletions
diff --git a/sound/soc/s3c24xx/s3c64xx-i2s.c b/sound/soc/s3c24xx/s3c64xx-i2s.c
deleted file mode 100644
index ae7acb6c4f1..00000000000
--- a/sound/soc/s3c24xx/s3c64xx-i2s.c
+++ /dev/null
@@ -1,242 +0,0 @@
1/* sound/soc/s3c24xx/s3c64xx-i2s.c
2 *
3 * ALSA SoC Audio Layer - S3C64XX I2S driver
4 *
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
7 * Ben Dooks <ben@simtec.co.uk>
8 * http://armlinux.simtec.co.uk/
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/module.h>
16#include <linux/clk.h>
17#include <linux/gpio.h>
18#include <linux/io.h>
19#include <linux/slab.h>
20
21#include <sound/soc.h>
22
23#include <plat/audio.h>
24
25#include <mach/map.h>
26#include <mach/dma.h>
27
28#include "s3c-dma.h"
29#include "regs-i2s-v2.h"
30#include "s3c64xx-i2s.h"
31
32/* The value should be set to maximum of the total number
33 * of I2Sv3 controllers that any supported SoC has.
34 */
35#define MAX_I2SV3 2
36
37static struct s3c2410_dma_client s3c64xx_dma_client_out = {
38 .name = "I2S PCM Stereo out"
39};
40
41static struct s3c2410_dma_client s3c64xx_dma_client_in = {
42 .name = "I2S PCM Stereo in"
43};
44
45static struct s3c_dma_params s3c64xx_i2s_pcm_stereo_out[MAX_I2SV3];
46static struct s3c_dma_params s3c64xx_i2s_pcm_stereo_in[MAX_I2SV3];
47static struct s3c_i2sv2_info s3c64xx_i2s[MAX_I2SV3];
48
49struct clk *s3c64xx_i2s_get_clock(struct snd_soc_dai *dai)
50{
51 struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(dai);
52 u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
53
54 if (iismod & S3C2412_IISMOD_IMS_SYSMUX)
55 return i2s->iis_cclk;
56 else
57 return i2s->iis_pclk;
58}
59EXPORT_SYMBOL_GPL(s3c64xx_i2s_get_clock);
60
61static int s3c64xx_i2s_probe(struct snd_soc_dai *dai)
62{
63 struct s3c_i2sv2_info *i2s;
64 int ret;
65
66 if (dai->id >= MAX_I2SV3) {
67 dev_err(dai->dev, "id %d out of range\n", dai->id);
68 return -EINVAL;
69 }
70
71 i2s = &s3c64xx_i2s[dai->id];
72 snd_soc_dai_set_drvdata(dai, i2s);
73
74 i2s->iis_cclk = clk_get(dai->dev, "audio-bus");
75 if (IS_ERR(i2s->iis_cclk)) {
76 dev_err(dai->dev, "failed to get audio-bus\n");
77 ret = PTR_ERR(i2s->iis_cclk);
78 goto err;
79 }
80
81 clk_enable(i2s->iis_cclk);
82
83 ret = s3c_i2sv2_probe(dai, i2s, i2s->base);
84 if (ret)
85 goto err_clk;
86
87 return 0;
88
89err_clk:
90 clk_disable(i2s->iis_cclk);
91 clk_put(i2s->iis_cclk);
92err:
93 kfree(i2s);
94 return ret;
95}
96
97static int s3c64xx_i2s_remove(struct snd_soc_dai *dai)
98{
99 struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(dai);
100
101 clk_disable(i2s->iis_cclk);
102 clk_put(i2s->iis_cclk);
103 kfree(i2s);
104 return 0;
105}
106
107static struct snd_soc_dai_ops s3c64xx_i2s_dai_ops;
108
109static struct snd_soc_dai_driver s3c64xx_i2s_dai[MAX_I2SV3] = {
110{
111 .name = "s3c64xx-i2s-0",
112 .probe = s3c64xx_i2s_probe,
113 .remove = s3c64xx_i2s_remove,
114 .playback = {
115 .channels_min = 2,
116 .channels_max = 2,
117 .rates = S3C64XX_I2S_RATES,
118 .formats = S3C64XX_I2S_FMTS,},
119 .capture = {
120 .channels_min = 2,
121 .channels_max = 2,
122 .rates = S3C64XX_I2S_RATES,
123 .formats = S3C64XX_I2S_FMTS,},
124 .ops = &s3c64xx_i2s_dai_ops,
125 .symmetric_rates = 1,
126}, {
127 .name = "s3c64xx-i2s-1",
128 .probe = s3c64xx_i2s_probe,
129 .remove = s3c64xx_i2s_remove,
130 .playback = {
131 .channels_min = 2,
132 .channels_max = 2,
133 .rates = S3C64XX_I2S_RATES,
134 .formats = S3C64XX_I2S_FMTS,},
135 .capture = {
136 .channels_min = 2,
137 .channels_max = 2,
138 .rates = S3C64XX_I2S_RATES,
139 .formats = S3C64XX_I2S_FMTS,},
140 .ops = &s3c64xx_i2s_dai_ops,
141 .symmetric_rates = 1,
142},};
143
144static __devinit int s3c64xx_iis_dev_probe(struct platform_device *pdev)
145{
146 struct s3c_audio_pdata *i2s_pdata;
147 struct s3c_i2sv2_info *i2s;
148 struct resource *res;
149 int i, ret;
150
151 if (pdev->id >= MAX_I2SV3) {
152 dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
153 return -EINVAL;
154 }
155
156 i2s = &s3c64xx_i2s[pdev->id];
157
158 i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
159 i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
160
161 res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
162 if (!res) {
163 dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
164 return -ENXIO;
165 }
166 i2s->dma_playback->channel = res->start;
167
168 res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
169 if (!res) {
170 dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
171 return -ENXIO;
172 }
173 i2s->dma_capture->channel = res->start;
174
175 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
176 if (!res) {
177 dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
178 return -ENXIO;
179 }
180
181 if (!request_mem_region(res->start, resource_size(res),
182 "s3c64xx-i2s")) {
183 dev_err(&pdev->dev, "Unable to request SFR region\n");
184 return -EBUSY;
185 }
186 i2s->base = res->start;
187
188 i2s_pdata = pdev->dev.platform_data;
189 if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
190 dev_err(&pdev->dev, "Unable to configure gpio\n");
191 return -EINVAL;
192 }
193 i2s->dma_capture->dma_addr = res->start + S3C2412_IISRXD;
194 i2s->dma_playback->dma_addr = res->start + S3C2412_IISTXD;
195
196 i2s->dma_capture->client = &s3c64xx_dma_client_in;
197 i2s->dma_capture->dma_size = 4;
198 i2s->dma_playback->client = &s3c64xx_dma_client_out;
199 i2s->dma_playback->dma_size = 4;
200
201 for (i = 0; i < ARRAY_SIZE(s3c64xx_i2s_dai); i++) {
202 ret = s3c_i2sv2_register_dai(&pdev->dev, i,
203 &s3c64xx_i2s_dai[i]);
204 if (ret != 0)
205 return ret;
206 }
207
208 return 0;
209}
210
211static __devexit int s3c64xx_iis_dev_remove(struct platform_device *pdev)
212{
213 snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(s3c64xx_i2s_dai));
214 return 0;
215}
216
217static struct platform_driver s3c64xx_iis_driver = {
218 .probe = s3c64xx_iis_dev_probe,
219 .remove = s3c64xx_iis_dev_remove,
220 .driver = {
221 .name = "s3c64xx-iis",
222 .owner = THIS_MODULE,
223 },
224};
225
226static int __init s3c64xx_i2s_init(void)
227{
228 return platform_driver_register(&s3c64xx_iis_driver);
229}
230module_init(s3c64xx_i2s_init);
231
232static void __exit s3c64xx_i2s_exit(void)
233{
234 platform_driver_unregister(&s3c64xx_iis_driver);
235}
236module_exit(s3c64xx_i2s_exit);
237
238/* Module information */
239MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
240MODULE_DESCRIPTION("S3C64XX I2S SoC Interface");
241MODULE_LICENSE("GPL");
242MODULE_ALIAS("platform:s3c64xx-iis");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-05 16:23:34 -0500