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Diffstat (limited to 'sound/soc/s3c24xx/s3c64xx-i2s-v4.c')
-rw-r--r--sound/soc/s3c24xx/s3c64xx-i2s-v4.c230
1 files changed, 0 insertions, 230 deletions
diff --git a/sound/soc/s3c24xx/s3c64xx-i2s-v4.c b/sound/soc/s3c24xx/s3c64xx-i2s-v4.c
deleted file mode 100644
index a9628472ebfe..000000000000
--- a/sound/soc/s3c24xx/s3c64xx-i2s-v4.c
+++ /dev/null
@@ -1,230 +0,0 @@
1/* sound/soc/s3c24xx/s3c64xx-i2s-v4.c
2 *
3 * ALSA SoC Audio Layer - S3C64XX I2Sv4 driver
4 * Copyright (c) 2010 Samsung Electronics Co. Ltd
5 * Author: Jaswinder Singh <jassi.brar@samsung.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/clk.h>
13#include <linux/gpio.h>
14#include <linux/io.h>
15
16#include <sound/soc.h>
17#include <sound/pcm_params.h>
18
19#include <plat/audio.h>
20
21#include <mach/map.h>
22#include <mach/dma.h>
23
24#include "s3c-dma.h"
25#include "regs-i2s-v2.h"
26#include "s3c64xx-i2s.h"
27
28static struct s3c2410_dma_client s3c64xx_dma_client_out = {
29 .name = "I2Sv4 PCM Stereo out"
30};
31
32static struct s3c2410_dma_client s3c64xx_dma_client_in = {
33 .name = "I2Sv4 PCM Stereo in"
34};
35
36static struct s3c_dma_params s3c64xx_i2sv4_pcm_stereo_out;
37static struct s3c_dma_params s3c64xx_i2sv4_pcm_stereo_in;
38static struct s3c_i2sv2_info s3c64xx_i2sv4;
39
40static int s3c64xx_i2sv4_probe(struct snd_soc_dai *dai)
41{
42 struct s3c_i2sv2_info *i2s = &s3c64xx_i2sv4;
43 int ret = 0;
44
45 snd_soc_dai_set_drvdata(dai, i2s);
46
47 ret = s3c_i2sv2_probe(dai, i2s, i2s->base);
48
49 return ret;
50}
51
52static int s3c_i2sv4_hw_params(struct snd_pcm_substream *substream,
53 struct snd_pcm_hw_params *params,
54 struct snd_soc_dai *cpu_dai)
55{
56 struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
57 struct s3c_dma_params *dma_data;
58 u32 iismod;
59
60 dev_dbg(cpu_dai->dev, "Entered %s\n", __func__);
61
62 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
63 dma_data = i2s->dma_playback;
64 else
65 dma_data = i2s->dma_capture;
66
67 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
68
69 iismod = readl(i2s->regs + S3C2412_IISMOD);
70 dev_dbg(cpu_dai->dev, "%s: r: IISMOD: %x\n", __func__, iismod);
71
72 iismod &= ~S3C64XX_IISMOD_BLC_MASK;
73 switch (params_format(params)) {
74 case SNDRV_PCM_FORMAT_S8:
75 iismod |= S3C64XX_IISMOD_BLC_8BIT;
76 break;
77 case SNDRV_PCM_FORMAT_S16_LE:
78 break;
79 case SNDRV_PCM_FORMAT_S24_LE:
80 iismod |= S3C64XX_IISMOD_BLC_24BIT;
81 break;
82 }
83
84 writel(iismod, i2s->regs + S3C2412_IISMOD);
85 dev_dbg(cpu_dai->dev, "%s: w: IISMOD: %x\n", __func__, iismod);
86
87 return 0;
88}
89
90static struct snd_soc_dai_ops s3c64xx_i2sv4_dai_ops = {
91 .hw_params = s3c_i2sv4_hw_params,
92};
93
94static struct snd_soc_dai_driver s3c64xx_i2s_v4_dai = {
95 .symmetric_rates = 1,
96 .playback = {
97 .channels_min = 2,
98 .channels_max = 2,
99 .rates = S3C64XX_I2S_RATES,
100 .formats = S3C64XX_I2S_FMTS,
101 },
102 .capture = {
103 .channels_min = 2,
104 .channels_max = 2,
105 .rates = S3C64XX_I2S_RATES,
106 .formats = S3C64XX_I2S_FMTS,
107 },
108 .probe = s3c64xx_i2sv4_probe,
109 .ops = &s3c64xx_i2sv4_dai_ops,
110};
111
112static __devinit int s3c64xx_i2sv4_dev_probe(struct platform_device *pdev)
113{
114 struct s3c_audio_pdata *i2s_pdata;
115 struct s3c_i2sv2_info *i2s;
116 struct resource *res;
117 int ret;
118
119 i2s = &s3c64xx_i2sv4;
120
121 i2s->feature |= S3C_FEATURE_CDCLKCON;
122
123 i2s->dma_capture = &s3c64xx_i2sv4_pcm_stereo_in;
124 i2s->dma_playback = &s3c64xx_i2sv4_pcm_stereo_out;
125
126 res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
127 if (!res) {
128 dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
129 return -ENXIO;
130 }
131 i2s->dma_playback->channel = res->start;
132
133 res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
134 if (!res) {
135 dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
136 return -ENXIO;
137 }
138 i2s->dma_capture->channel = res->start;
139
140 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
141 if (!res) {
142 dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
143 return -ENXIO;
144 }
145
146 if (!request_mem_region(res->start, resource_size(res),
147 "s3c64xx-i2s-v4")) {
148 dev_err(&pdev->dev, "Unable to request SFR region\n");
149 return -EBUSY;
150 }
151 i2s->dma_capture->dma_addr = res->start + S3C2412_IISRXD;
152 i2s->dma_playback->dma_addr = res->start + S3C2412_IISTXD;
153
154 i2s->dma_capture->client = &s3c64xx_dma_client_in;
155 i2s->dma_capture->dma_size = 4;
156 i2s->dma_playback->client = &s3c64xx_dma_client_out;
157 i2s->dma_playback->dma_size = 4;
158
159 i2s->base = res->start;
160
161 i2s_pdata = pdev->dev.platform_data;
162 if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
163 dev_err(&pdev->dev, "Unable to configure gpio\n");
164 return -EINVAL;
165 }
166
167 i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
168 if (IS_ERR(i2s->iis_cclk)) {
169 dev_err(&pdev->dev, "failed to get audio-bus\n");
170 ret = PTR_ERR(i2s->iis_cclk);
171 goto err;
172 }
173
174 clk_enable(i2s->iis_cclk);
175
176 ret = s3c_i2sv2_register_dai(&pdev->dev, pdev->id, &s3c64xx_i2s_v4_dai);
177 if (ret != 0)
178 goto err_i2sv2;
179
180 return 0;
181
182err_i2sv2:
183 clk_put(i2s->iis_cclk);
184err:
185 return ret;
186}
187
188static __devexit int s3c64xx_i2sv4_dev_remove(struct platform_device *pdev)
189{
190 struct s3c_i2sv2_info *i2s = &s3c64xx_i2sv4;
191 struct resource *res;
192
193 snd_soc_unregister_dai(&pdev->dev);
194 clk_put(i2s->iis_cclk);
195
196 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
197 if (res)
198 release_mem_region(res->start, resource_size(res));
199 else
200 dev_warn(&pdev->dev, "Unable to get I2S SFR address\n");
201
202 return 0;
203}
204
205static struct platform_driver s3c64xx_i2sv4_driver = {
206 .probe = s3c64xx_i2sv4_dev_probe,
207 .remove = s3c64xx_i2sv4_dev_remove,
208 .driver = {
209 .name = "s3c64xx-iis-v4",
210 .owner = THIS_MODULE,
211 },
212};
213
214static int __init s3c64xx_i2sv4_init(void)
215{
216 return platform_driver_register(&s3c64xx_i2sv4_driver);
217}
218module_init(s3c64xx_i2sv4_init);
219
220static void __exit s3c64xx_i2sv4_exit(void)
221{
222 platform_driver_unregister(&s3c64xx_i2sv4_driver);
223}
224module_exit(s3c64xx_i2sv4_exit);
225
226/* Module information */
227MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
228MODULE_DESCRIPTION("S3C64XX I2Sv4 SoC Interface");
229MODULE_LICENSE("GPL");
230MODULE_ALIAS("platform:s3c64xx-iis-v4");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-01 21:21:54 -0500