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-rw-r--r--sound/soc/blackfin/bf5xx-i2s.c197
1 files changed, 94 insertions, 103 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index 3e6ada0dd1c4..00cc3e00b2fe 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -42,7 +42,6 @@
42#include <linux/gpio.h> 42#include <linux/gpio.h>
43 43
44#include "bf5xx-sport.h" 44#include "bf5xx-sport.h"
45#include "bf5xx-i2s.h"
46 45
47struct bf5xx_i2s_port { 46struct bf5xx_i2s_port {
48 u16 tcr1; 47 u16 tcr1;
@@ -52,59 +51,24 @@ struct bf5xx_i2s_port {
52 int configured; 51 int configured;
53}; 52};
54 53
55static struct bf5xx_i2s_port bf5xx_i2s;
56static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
57
58static struct sport_param sport_params[2] = {
59 {
60 .dma_rx_chan = CH_SPORT0_RX,
61 .dma_tx_chan = CH_SPORT0_TX,
62 .err_irq = IRQ_SPORT0_ERROR,
63 .regs = (struct sport_register *)SPORT0_TCR1,
64 },
65 {
66 .dma_rx_chan = CH_SPORT1_RX,
67 .dma_tx_chan = CH_SPORT1_TX,
68 .err_irq = IRQ_SPORT1_ERROR,
69 .regs = (struct sport_register *)SPORT1_TCR1,
70 }
71};
72
73/*
74 * Setting the TFS pin selector for SPORT 0 based on whether the selected
75 * port id F or G. If the port is F then no conflict should exist for the
76 * TFS. When Port G is selected and EMAC then there is a conflict between
77 * the PHY interrupt line and TFS. Current settings prevent the conflict
78 * by ignoring the TFS pin when Port G is selected. This allows both
79 * codecs and EMAC using Port G concurrently.
80 */
81#ifdef CONFIG_BF527_SPORT0_PORTG
82#define LOCAL_SPORT0_TFS (0)
83#else
84#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
85#endif
86
87static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
88 P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0},
89 {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI,
90 P_SPORT1_RSCLK, P_SPORT1_TFS, 0} };
91
92static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai, 54static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
93 unsigned int fmt) 55 unsigned int fmt)
94{ 56{
57 struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
58 struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
95 int ret = 0; 59 int ret = 0;
96 60
97 /* interface format:support I2S,slave mode */ 61 /* interface format:support I2S,slave mode */
98 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 62 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
99 case SND_SOC_DAIFMT_I2S: 63 case SND_SOC_DAIFMT_I2S:
100 bf5xx_i2s.tcr1 |= TFSR | TCKFE; 64 bf5xx_i2s->tcr1 |= TFSR | TCKFE;
101 bf5xx_i2s.rcr1 |= RFSR | RCKFE; 65 bf5xx_i2s->rcr1 |= RFSR | RCKFE;
102 bf5xx_i2s.tcr2 |= TSFSE; 66 bf5xx_i2s->tcr2 |= TSFSE;
103 bf5xx_i2s.rcr2 |= RSFSE; 67 bf5xx_i2s->rcr2 |= RSFSE;
104 break; 68 break;
105 case SND_SOC_DAIFMT_DSP_A: 69 case SND_SOC_DAIFMT_DSP_A:
106 bf5xx_i2s.tcr1 |= TFSR; 70 bf5xx_i2s->tcr1 |= TFSR;
107 bf5xx_i2s.rcr1 |= RFSR; 71 bf5xx_i2s->rcr1 |= RFSR;
108 break; 72 break;
109 case SND_SOC_DAIFMT_LEFT_J: 73 case SND_SOC_DAIFMT_LEFT_J:
110 ret = -EINVAL; 74 ret = -EINVAL;
@@ -136,29 +100,35 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
136 struct snd_pcm_hw_params *params, 100 struct snd_pcm_hw_params *params,
137 struct snd_soc_dai *dai) 101 struct snd_soc_dai *dai)
138{ 102{
103 struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
104 struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
139 int ret = 0; 105 int ret = 0;
140 106
141 bf5xx_i2s.tcr2 &= ~0x1f; 107 bf5xx_i2s->tcr2 &= ~0x1f;
142 bf5xx_i2s.rcr2 &= ~0x1f; 108 bf5xx_i2s->rcr2 &= ~0x1f;
143 switch (params_format(params)) { 109 switch (params_format(params)) {
110 case SNDRV_PCM_FORMAT_S8:
111 bf5xx_i2s->tcr2 |= 7;
112 bf5xx_i2s->rcr2 |= 7;
113 sport_handle->wdsize = 1;
144 case SNDRV_PCM_FORMAT_S16_LE: 114 case SNDRV_PCM_FORMAT_S16_LE:
145 bf5xx_i2s.tcr2 |= 15; 115 bf5xx_i2s->tcr2 |= 15;
146 bf5xx_i2s.rcr2 |= 15; 116 bf5xx_i2s->rcr2 |= 15;
147 sport_handle->wdsize = 2; 117 sport_handle->wdsize = 2;
148 break; 118 break;
149 case SNDRV_PCM_FORMAT_S24_LE: 119 case SNDRV_PCM_FORMAT_S24_LE:
150 bf5xx_i2s.tcr2 |= 23; 120 bf5xx_i2s->tcr2 |= 23;
151 bf5xx_i2s.rcr2 |= 23; 121 bf5xx_i2s->rcr2 |= 23;
152 sport_handle->wdsize = 3; 122 sport_handle->wdsize = 3;
153 break; 123 break;
154 case SNDRV_PCM_FORMAT_S32_LE: 124 case SNDRV_PCM_FORMAT_S32_LE:
155 bf5xx_i2s.tcr2 |= 31; 125 bf5xx_i2s->tcr2 |= 31;
156 bf5xx_i2s.rcr2 |= 31; 126 bf5xx_i2s->rcr2 |= 31;
157 sport_handle->wdsize = 4; 127 sport_handle->wdsize = 4;
158 break; 128 break;
159 } 129 }
160 130
161 if (!bf5xx_i2s.configured) { 131 if (!bf5xx_i2s->configured) {
162 /* 132 /*
163 * TX and RX are not independent,they are enabled at the 133 * TX and RX are not independent,they are enabled at the
164 * same time, even if only one side is running. So, we 134 * same time, even if only one side is running. So, we
@@ -167,16 +137,16 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
167 * 137 *
168 * CPU DAI:slave mode. 138 * CPU DAI:slave mode.
169 */ 139 */
170 bf5xx_i2s.configured = 1; 140 bf5xx_i2s->configured = 1;
171 ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1, 141 ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
172 bf5xx_i2s.rcr2, 0, 0); 142 bf5xx_i2s->rcr2, 0, 0);
173 if (ret) { 143 if (ret) {
174 pr_err("SPORT is busy!\n"); 144 pr_err("SPORT is busy!\n");
175 return -EBUSY; 145 return -EBUSY;
176 } 146 }
177 147
178 ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1, 148 ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
179 bf5xx_i2s.tcr2, 0, 0); 149 bf5xx_i2s->tcr2, 0, 0);
180 if (ret) { 150 if (ret) {
181 pr_err("SPORT is busy!\n"); 151 pr_err("SPORT is busy!\n");
182 return -EBUSY; 152 return -EBUSY;
@@ -189,67 +159,46 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
189static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream, 159static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
190 struct snd_soc_dai *dai) 160 struct snd_soc_dai *dai)
191{ 161{
162 struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
163 struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
164
192 pr_debug("%s enter\n", __func__); 165 pr_debug("%s enter\n", __func__);
193 /* No active stream, SPORT is allowed to be configured again. */ 166 /* No active stream, SPORT is allowed to be configured again. */
194 if (!dai->active) 167 if (!dai->active)
195 bf5xx_i2s.configured = 0; 168 bf5xx_i2s->configured = 0;
196}
197
198static int bf5xx_i2s_probe(struct platform_device *pdev,
199 struct snd_soc_dai *dai)
200{
201 pr_debug("%s enter\n", __func__);
202 if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) {
203 pr_err("Requesting Peripherals failed\n");
204 return -EFAULT;
205 }
206
207 /* request DMA for SPORT */
208 sport_handle = sport_init(&sport_params[sport_num], 4, \
209 2 * sizeof(u32), NULL);
210 if (!sport_handle) {
211 peripheral_free_list(&sport_req[sport_num][0]);
212 return -ENODEV;
213 }
214
215 return 0;
216}
217
218static void bf5xx_i2s_remove(struct platform_device *pdev,
219 struct snd_soc_dai *dai)
220{
221 pr_debug("%s enter\n", __func__);
222 peripheral_free_list(&sport_req[sport_num][0]);
223} 169}
224 170
225#ifdef CONFIG_PM 171#ifdef CONFIG_PM
226static int bf5xx_i2s_suspend(struct snd_soc_dai *dai) 172static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
227{ 173{
174 struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
228 175
229 pr_debug("%s : sport %d\n", __func__, dai->id); 176 pr_debug("%s : sport %d\n", __func__, dai->id);
230 177
231 if (dai->capture.active) 178 if (dai->capture_active)
232 sport_rx_stop(sport_handle); 179 sport_rx_stop(sport_handle);
233 if (dai->playback.active) 180 if (dai->playback_active)
234 sport_tx_stop(sport_handle); 181 sport_tx_stop(sport_handle);
235 return 0; 182 return 0;
236} 183}
237 184
238static int bf5xx_i2s_resume(struct snd_soc_dai *dai) 185static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
239{ 186{
187 struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
188 struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
240 int ret; 189 int ret;
241 190
242 pr_debug("%s : sport %d\n", __func__, dai->id); 191 pr_debug("%s : sport %d\n", __func__, dai->id);
243 192
244 ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1, 193 ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
245 bf5xx_i2s.rcr2, 0, 0); 194 bf5xx_i2s->rcr2, 0, 0);
246 if (ret) { 195 if (ret) {
247 pr_err("SPORT is busy!\n"); 196 pr_err("SPORT is busy!\n");
248 return -EBUSY; 197 return -EBUSY;
249 } 198 }
250 199
251 ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1, 200 ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
252 bf5xx_i2s.tcr2, 0, 0); 201 bf5xx_i2s->tcr2, 0, 0);
253 if (ret) { 202 if (ret) {
254 pr_err("SPORT is busy!\n"); 203 pr_err("SPORT is busy!\n");
255 return -EBUSY; 204 return -EBUSY;
@@ -268,8 +217,11 @@ static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
268 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ 217 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
269 SNDRV_PCM_RATE_96000) 218 SNDRV_PCM_RATE_96000)
270 219
271#define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\ 220#define BF5XX_I2S_FORMATS \
272 SNDRV_PCM_FMTBIT_S32_LE) 221 (SNDRV_PCM_FMTBIT_S8 | \
222 SNDRV_PCM_FMTBIT_S16_LE | \
223 SNDRV_PCM_FMTBIT_S24_LE | \
224 SNDRV_PCM_FMTBIT_S32_LE)
273 225
274static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = { 226static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
275 .shutdown = bf5xx_i2s_shutdown, 227 .shutdown = bf5xx_i2s_shutdown,
@@ -277,11 +229,7 @@ static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
277 .set_fmt = bf5xx_i2s_set_dai_fmt, 229 .set_fmt = bf5xx_i2s_set_dai_fmt,
278}; 230};
279 231
280struct snd_soc_dai bf5xx_i2s_dai = { 232static struct snd_soc_dai_driver bf5xx_i2s_dai = {
281 .name = "bf5xx-i2s",
282 .id = 0,
283 .probe = bf5xx_i2s_probe,
284 .remove = bf5xx_i2s_remove,
285 .suspend = bf5xx_i2s_suspend, 233 .suspend = bf5xx_i2s_suspend,
286 .resume = bf5xx_i2s_resume, 234 .resume = bf5xx_i2s_resume,
287 .playback = { 235 .playback = {
@@ -296,18 +244,61 @@ struct snd_soc_dai bf5xx_i2s_dai = {
296 .formats = BF5XX_I2S_FORMATS,}, 244 .formats = BF5XX_I2S_FORMATS,},
297 .ops = &bf5xx_i2s_dai_ops, 245 .ops = &bf5xx_i2s_dai_ops,
298}; 246};
299EXPORT_SYMBOL_GPL(bf5xx_i2s_dai); 247
248static int __devinit bf5xx_i2s_probe(struct platform_device *pdev)
249{
250 struct sport_device *sport_handle;
251 int ret;
252
253 /* configure SPORT for I2S */
254 sport_handle = sport_init(pdev, 4, 2 * sizeof(u32),
255 sizeof(struct bf5xx_i2s_port));
256 if (!sport_handle)
257 return -ENODEV;
258
259 /* register with the ASoC layers */
260 ret = snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai);
261 if (ret) {
262 pr_err("Failed to register DAI: %d\n", ret);
263 sport_done(sport_handle);
264 return ret;
265 }
266
267 return 0;
268}
269
270static int __devexit bf5xx_i2s_remove(struct platform_device *pdev)
271{
272 struct sport_device *sport_handle = platform_get_drvdata(pdev);
273
274 pr_debug("%s enter\n", __func__);
275
276 snd_soc_unregister_dai(&pdev->dev);
277 sport_done(sport_handle);
278
279 return 0;
280}
281
282static struct platform_driver bfin_i2s_driver = {
283 .probe = bf5xx_i2s_probe,
284 .remove = __devexit_p(bf5xx_i2s_remove),
285 .driver = {
286 .name = "bfin-i2s",
287 .owner = THIS_MODULE,
288 },
289};
300 290
301static int __init bfin_i2s_init(void) 291static int __init bfin_i2s_init(void)
302{ 292{
303 return snd_soc_register_dai(&bf5xx_i2s_dai); 293 return platform_driver_register(&bfin_i2s_driver);
304} 294}
305module_init(bfin_i2s_init);
306 295
307static void __exit bfin_i2s_exit(void) 296static void __exit bfin_i2s_exit(void)
308{ 297{
309 snd_soc_unregister_dai(&bf5xx_i2s_dai); 298 platform_driver_unregister(&bfin_i2s_driver);
310} 299}
300
301module_init(bfin_i2s_init);
311module_exit(bfin_i2s_exit); 302module_exit(bfin_i2s_exit);
312 303
313/* Module information */ 304/* Module information */