1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * linux/sound/pxa2xx-ac97.c -- AC97 support f 2 * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
4 * 3 *
5 * Author: Nicolas Pitre 4 * Author: Nicolas Pitre
6 * Created: Dec 02, 2004 5 * Created: Dec 02, 2004
7 * Copyright: MontaVista Software Inc. 6 * Copyright: MontaVista Software Inc.
>> 7 *
>> 8 * This program is free software; you can redistribute it and/or modify
>> 9 * it under the terms of the GNU General Public License version 2 as
>> 10 * published by the Free Software Foundation.
8 */ 11 */
9 12
10 #include <linux/init.h> 13 #include <linux/init.h>
11 #include <linux/io.h> <<
12 #include <linux/module.h> 14 #include <linux/module.h>
13 #include <linux/platform_device.h> 15 #include <linux/platform_device.h>
14 #include <linux/dmaengine.h> <<
15 #include <linux/dma/pxa-dma.h> <<
16 16
17 #include <sound/ac97/controller.h> <<
18 #include <sound/core.h> 17 #include <sound/core.h>
19 #include <sound/ac97_codec.h> 18 #include <sound/ac97_codec.h>
20 #include <sound/soc.h> 19 #include <sound/soc.h>
21 #include <sound/pxa2xx-lib.h> 20 #include <sound/pxa2xx-lib.h>
22 #include <sound/dmaengine_pcm.h> <<
23 <<
24 #include <linux/platform_data/asoc-pxa.h> <<
25 <<
26 #define PCDR 0x0040 /* PCM FIFO Data Regis <<
27 #define MODR 0x0140 /* Modem FIFO Data Reg <<
28 #define MCDR 0x0060 /* Mic-in FIFO Data Re <<
29 21
30 static void pxa2xx_ac97_warm_reset(struct ac97 !! 22 #include <mach/hardware.h>
31 { !! 23 #include <mach/regs-ac97.h>
32 pxa2xx_ac97_try_warm_reset(); !! 24 #include <mach/dma.h>
>> 25 #include <mach/audio.h>
33 26
34 pxa2xx_ac97_finish_reset(); !! 27 #include "pxa2xx-pcm.h"
35 } !! 28 #include "pxa2xx-ac97.h"
36 29
37 static void pxa2xx_ac97_cold_reset(struct ac97 !! 30 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
38 { 31 {
39 pxa2xx_ac97_try_cold_reset(); !! 32 pxa2xx_ac97_try_warm_reset(ac97);
40 33
41 pxa2xx_ac97_finish_reset(); !! 34 pxa2xx_ac97_finish_reset(ac97);
42 } 35 }
43 36
44 static int pxa2xx_ac97_read_actrl(struct ac97_ !! 37 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
45 unsigned sho <<
46 { 38 {
47 return pxa2xx_ac97_read(slot, reg); !! 39 pxa2xx_ac97_try_cold_reset(ac97);
48 } <<
49 40
50 static int pxa2xx_ac97_write_actrl(struct ac97 !! 41 pxa2xx_ac97_finish_reset(ac97);
51 unsigned sh <<
52 { <<
53 return pxa2xx_ac97_write(slot, reg, va <<
54 } 42 }
55 43
56 static struct ac97_controller_ops pxa2xx_ac97_ !! 44 struct snd_ac97_bus_ops soc_ac97_ops = {
57 .read = pxa2xx_ac97_read_actrl, !! 45 .read = pxa2xx_ac97_read,
58 .write = pxa2xx_ac97_write_actrl, !! 46 .write = pxa2xx_ac97_write,
59 .warm_reset = pxa2xx_ac97_warm_res 47 .warm_reset = pxa2xx_ac97_warm_reset,
60 .reset = pxa2xx_ac97_cold_reset, 48 .reset = pxa2xx_ac97_cold_reset,
61 }; 49 };
62 50
63 static struct snd_dmaengine_dai_dma_data pxa2x !! 51 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
64 .addr_width = DMA_SLAVE_BUSWIDTH_4 !! 52 .name = "AC97 PCM Stereo out",
65 .chan_name = "pcm_pcm_stereo_in", !! 53 .dev_addr = __PREG(PCDR),
66 .maxburst = 32, !! 54 .drcmr = &DRCMR(12),
>> 55 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
>> 56 DCMD_BURST32 | DCMD_WIDTH4,
>> 57 };
>> 58
>> 59 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
>> 60 .name = "AC97 PCM Stereo in",
>> 61 .dev_addr = __PREG(PCDR),
>> 62 .drcmr = &DRCMR(11),
>> 63 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
>> 64 DCMD_BURST32 | DCMD_WIDTH4,
>> 65 };
>> 66
>> 67 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
>> 68 .name = "AC97 Aux PCM (Slot 5) Mono out",
>> 69 .dev_addr = __PREG(MODR),
>> 70 .drcmr = &DRCMR(10),
>> 71 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
>> 72 DCMD_BURST16 | DCMD_WIDTH2,
>> 73 };
>> 74
>> 75 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
>> 76 .name = "AC97 Aux PCM (Slot 5) Mono in",
>> 77 .dev_addr = __PREG(MODR),
>> 78 .drcmr = &DRCMR(9),
>> 79 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
>> 80 DCMD_BURST16 | DCMD_WIDTH2,
>> 81 };
>> 82
>> 83 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
>> 84 .name = "AC97 Mic PCM (Slot 6) Mono in",
>> 85 .dev_addr = __PREG(MCDR),
>> 86 .drcmr = &DRCMR(8),
>> 87 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
>> 88 DCMD_BURST16 | DCMD_WIDTH2,
67 }; 89 };
68 90
69 static struct snd_dmaengine_dai_dma_data pxa2x !! 91 #ifdef CONFIG_PM
70 .addr_width = DMA_SLAVE_BUSWIDTH_4 !! 92 static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
71 .chan_name = "pcm_pcm_stereo_out" !! 93 {
72 .maxburst = 32, !! 94 return pxa2xx_ac97_hw_suspend();
73 }; !! 95 }
74 96
75 static struct snd_dmaengine_dai_dma_data pxa2x !! 97 static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
76 .addr_width = DMA_SLAVE_BUSWIDTH_2 !! 98 {
77 .chan_name = "pcm_aux_mono_out", !! 99 return pxa2xx_ac97_hw_resume();
78 .maxburst = 16, !! 100 }
79 }; <<
80 101
81 static struct snd_dmaengine_dai_dma_data pxa2x !! 102 #else
82 .addr_width = DMA_SLAVE_BUSWIDTH_2 !! 103 #define pxa2xx_ac97_suspend NULL
83 .chan_name = "pcm_aux_mono_in", !! 104 #define pxa2xx_ac97_resume NULL
84 .maxburst = 16, !! 105 #endif
85 }; <<
86 106
87 static struct snd_dmaengine_dai_dma_data pxa2x !! 107 static int pxa2xx_ac97_probe(struct platform_device *pdev,
88 .addr_width = DMA_SLAVE_BUSWIDTH_2 !! 108 struct snd_soc_dai *dai)
89 .chan_name = "pcm_aux_mic_mono", !! 109 {
90 .maxburst = 16, !! 110 return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev));
91 }; !! 111 }
>> 112
>> 113 static void pxa2xx_ac97_remove(struct platform_device *pdev,
>> 114 struct snd_soc_dai *dai)
>> 115 {
>> 116 pxa2xx_ac97_hw_remove(to_platform_device(dai->dev));
>> 117 }
92 118
93 static int pxa2xx_ac97_hifi_startup(struct snd !! 119 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
94 struct snd !! 120 struct snd_pcm_hw_params *params,
>> 121 struct snd_soc_dai *dai)
95 { 122 {
96 struct snd_dmaengine_dai_dma_data *dma !! 123 struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> 124 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
97 125
98 if (substream->stream == SNDRV_PCM_STR 126 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
99 dma_data = &pxa2xx_ac97_pcm_st !! 127 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
100 else 128 else
101 dma_data = &pxa2xx_ac97_pcm_st !! 129 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
102 <<
103 snd_soc_dai_set_dma_data(cpu_dai, subs <<
104 130
105 return 0; 131 return 0;
106 } 132 }
107 133
108 static int pxa2xx_ac97_aux_startup(struct snd_ !! 134 static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
109 struct snd_ !! 135 struct snd_pcm_hw_params *params,
>> 136 struct snd_soc_dai *dai)
110 { 137 {
111 struct snd_dmaengine_dai_dma_data *dma !! 138 struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> 139 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
112 140
113 if (substream->stream == SNDRV_PCM_STR 141 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
114 dma_data = &pxa2xx_ac97_pcm_au !! 142 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
115 else 143 else
116 dma_data = &pxa2xx_ac97_pcm_au !! 144 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
117 <<
118 snd_soc_dai_set_dma_data(cpu_dai, subs <<
119 145
120 return 0; 146 return 0;
121 } 147 }
122 148
123 static int pxa2xx_ac97_mic_startup(struct snd_ !! 149 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
124 struct snd_ !! 150 struct snd_pcm_hw_params *params,
>> 151 struct snd_soc_dai *dai)
125 { 152 {
>> 153 struct snd_soc_pcm_runtime *rtd = substream->private_data;
>> 154 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
>> 155
126 if (substream->stream == SNDRV_PCM_STR 156 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
127 return -ENODEV; 157 return -ENODEV;
128 snd_soc_dai_set_dma_data(cpu_dai, subs !! 158 else
129 &pxa2xx_ac97_ !! 159 cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
130 160
131 return 0; 161 return 0;
132 } 162 }
133 163
134 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 164 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
135 SNDRV_PCM_RATE_16000 | SNDRV_P 165 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
136 SNDRV_PCM_RATE_48000) 166 SNDRV_PCM_RATE_48000)
137 167
138 static const struct snd_soc_dai_ops pxa_ac97_h !! 168 static struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
139 .startup = pxa2xx_ac97_hifi_sta !! 169 .hw_params = pxa2xx_ac97_hw_params,
140 }; 170 };
141 171
142 static const struct snd_soc_dai_ops pxa_ac97_a !! 172 static struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
143 .startup = pxa2xx_ac97_aux_star !! 173 .hw_params = pxa2xx_ac97_hw_aux_params,
144 }; 174 };
145 175
146 static const struct snd_soc_dai_ops pxa_ac97_m !! 176 static struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
147 .startup = pxa2xx_ac97_mic_star !! 177 .hw_params = pxa2xx_ac97_hw_mic_params,
148 }; 178 };
149 179
150 /* 180 /*
151 * There is only 1 physical AC97 interface for 181 * There is only 1 physical AC97 interface for pxa2xx, but it
152 * has extra fifo's that can be used for aux D 182 * has extra fifo's that can be used for aux DACs and ADCs.
153 */ 183 */
154 static struct snd_soc_dai_driver pxa_ac97_dai_ !! 184 struct snd_soc_dai pxa_ac97_dai[] = {
155 { 185 {
156 .name = "pxa2xx-ac97", 186 .name = "pxa2xx-ac97",
>> 187 .id = 0,
>> 188 .ac97_control = 1,
>> 189 .probe = pxa2xx_ac97_probe,
>> 190 .remove = pxa2xx_ac97_remove,
>> 191 .suspend = pxa2xx_ac97_suspend,
>> 192 .resume = pxa2xx_ac97_resume,
157 .playback = { 193 .playback = {
158 .stream_name = "AC97 Playback" 194 .stream_name = "AC97 Playback",
159 .channels_min = 2, 195 .channels_min = 2,
160 .channels_max = 2, 196 .channels_max = 2,
161 .rates = PXA2XX_AC97_RATES, 197 .rates = PXA2XX_AC97_RATES,
162 .formats = SNDRV_PCM_FMTBIT_S1 198 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
163 .capture = { 199 .capture = {
164 .stream_name = "AC97 Capture", 200 .stream_name = "AC97 Capture",
165 .channels_min = 2, 201 .channels_min = 2,
166 .channels_max = 2, 202 .channels_max = 2,
167 .rates = PXA2XX_AC97_RATES, 203 .rates = PXA2XX_AC97_RATES,
168 .formats = SNDRV_PCM_FMTBIT_S1 204 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
169 .ops = &pxa_ac97_hifi_dai_ops, 205 .ops = &pxa_ac97_hifi_dai_ops,
170 }, 206 },
171 { 207 {
172 .name = "pxa2xx-ac97-aux", 208 .name = "pxa2xx-ac97-aux",
>> 209 .id = 1,
>> 210 .ac97_control = 1,
173 .playback = { 211 .playback = {
174 .stream_name = "AC97 Aux Playb 212 .stream_name = "AC97 Aux Playback",
175 .channels_min = 1, 213 .channels_min = 1,
176 .channels_max = 1, 214 .channels_max = 1,
177 .rates = PXA2XX_AC97_RATES, 215 .rates = PXA2XX_AC97_RATES,
178 .formats = SNDRV_PCM_FMTBIT_S1 216 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
179 .capture = { 217 .capture = {
180 .stream_name = "AC97 Aux Captu 218 .stream_name = "AC97 Aux Capture",
181 .channels_min = 1, 219 .channels_min = 1,
182 .channels_max = 1, 220 .channels_max = 1,
183 .rates = PXA2XX_AC97_RATES, 221 .rates = PXA2XX_AC97_RATES,
184 .formats = SNDRV_PCM_FMTBIT_S1 222 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
185 .ops = &pxa_ac97_aux_dai_ops, 223 .ops = &pxa_ac97_aux_dai_ops,
186 }, 224 },
187 { 225 {
188 .name = "pxa2xx-ac97-mic", 226 .name = "pxa2xx-ac97-mic",
>> 227 .id = 2,
>> 228 .ac97_control = 1,
189 .capture = { 229 .capture = {
190 .stream_name = "AC97 Mic Captu 230 .stream_name = "AC97 Mic Capture",
191 .channels_min = 1, 231 .channels_min = 1,
192 .channels_max = 1, 232 .channels_max = 1,
193 .rates = PXA2XX_AC97_RATES, 233 .rates = PXA2XX_AC97_RATES,
194 .formats = SNDRV_PCM_FMTBIT_S1 234 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
195 .ops = &pxa_ac97_mic_dai_ops, 235 .ops = &pxa_ac97_mic_dai_ops,
196 }, 236 },
197 }; 237 };
198 238
199 static const struct snd_soc_component_driver p !! 239 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
200 .name = "pxa-ac97", !! 240 EXPORT_SYMBOL_GPL(soc_ac97_ops);
201 .pcm_construct = pxa2xx_soc_pcm_new, <<
202 .open = pxa2xx_soc_pcm_open, <<
203 .close = pxa2xx_soc_pcm_close <<
204 .hw_params = pxa2xx_soc_pcm_hw_pa <<
205 .prepare = pxa2xx_soc_pcm_prepa <<
206 .trigger = pxa2xx_soc_pcm_trigg <<
207 .pointer = pxa2xx_soc_pcm_point <<
208 }; <<
209 <<
210 #ifdef CONFIG_OF <<
211 static const struct of_device_id pxa2xx_ac97_d <<
212 { .compatible = "marvell,pxa250-ac97", <<
213 { .compatible = "marvell,pxa270-ac97", <<
214 { .compatible = "marvell,pxa300-ac97", <<
215 { } <<
216 }; <<
217 MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids); <<
218 <<
219 #endif <<
220 241
221 static int pxa2xx_ac97_dev_probe(struct platfo !! 242 static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev)
222 { 243 {
223 int ret; !! 244 int i;
224 struct ac97_controller *ctrl; <<
225 pxa2xx_audio_ops_t *pdata = pdev->dev. 245 pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
226 struct resource *regs; <<
227 void **codecs_pdata; <<
228 246
229 if (pdev->id != -1) { !! 247 if (pdev->id >= 0) {
230 dev_err(&pdev->dev, "PXA2xx ha 248 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
231 return -ENXIO; 249 return -ENXIO;
232 } 250 }
233 251
234 regs = platform_get_resource(pdev, IOR !! 252 for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) {
235 if (!regs) !! 253 pxa_ac97_dai[i].dev = &pdev->dev;
236 return -ENXIO; !! 254 if (pdata && pdata->codec_pdata[0])
237 !! 255 pxa_ac97_dai[i].ac97_pdata = pdata->codec_pdata[0];
238 pxa2xx_ac97_pcm_stereo_in.addr = regs- <<
239 pxa2xx_ac97_pcm_stereo_out.addr = regs <<
240 pxa2xx_ac97_pcm_aux_mono_out.addr = re <<
241 pxa2xx_ac97_pcm_aux_mono_in.addr = reg <<
242 pxa2xx_ac97_pcm_mic_mono_in.addr = reg <<
243 <<
244 ret = pxa2xx_ac97_hw_probe(pdev); <<
245 if (ret) { <<
246 dev_err(&pdev->dev, "PXA2xx AC <<
247 return ret; <<
248 } 256 }
249 257
250 codecs_pdata = pdata ? pdata->codec_pd <<
251 ctrl = snd_ac97_controller_register(&p <<
252 AC <<
253 co <<
254 if (IS_ERR(ctrl)) <<
255 return PTR_ERR(ctrl); <<
256 <<
257 platform_set_drvdata(pdev, ctrl); <<
258 /* Punt most of the init to the SoC pr 258 /* Punt most of the init to the SoC probe; we may need the machine
259 * driver to do interesting things wit 259 * driver to do interesting things with the clocking to get us up
260 * and running. 260 * and running.
261 */ 261 */
262 return devm_snd_soc_register_component !! 262 return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
263 pxa_ <<
264 } <<
265 <<
266 static void pxa2xx_ac97_dev_remove(struct plat <<
267 { <<
268 struct ac97_controller *ctrl = platfor <<
269 <<
270 snd_ac97_controller_unregister(ctrl); <<
271 pxa2xx_ac97_hw_remove(pdev); <<
272 } 263 }
273 264
274 static int pxa2xx_ac97_dev_suspend(struct devi !! 265 static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev)
275 { 266 {
276 return pxa2xx_ac97_hw_suspend(); !! 267 snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
277 } <<
278 268
279 static int pxa2xx_ac97_dev_resume(struct devic !! 269 return 0;
280 { <<
281 return pxa2xx_ac97_hw_resume(); <<
282 } 270 }
283 271
284 static DEFINE_SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm <<
285 pxa2xx_ac97_dev_suspend, pxa2x <<
286 <<
287 static struct platform_driver pxa2xx_ac97_driv 272 static struct platform_driver pxa2xx_ac97_driver = {
288 .probe = pxa2xx_ac97_dev_prob 273 .probe = pxa2xx_ac97_dev_probe,
289 .remove = pxa2xx_ac97_dev_remo !! 274 .remove = __devexit_p(pxa2xx_ac97_dev_remove),
290 .driver = { 275 .driver = {
291 .name = "pxa2xx-ac97", 276 .name = "pxa2xx-ac97",
292 .pm = &pxa2xx_ac97_pm_ops, !! 277 .owner = THIS_MODULE,
293 .of_match_table = of_match_ptr <<
294 }, 278 },
295 }; 279 };
296 280
297 module_platform_driver(pxa2xx_ac97_driver); !! 281 static int __init pxa_ac97_init(void)
>> 282 {
>> 283 return platform_driver_register(&pxa2xx_ac97_driver);
>> 284 }
>> 285 module_init(pxa_ac97_init);
>> 286
>> 287 static void __exit pxa_ac97_exit(void)
>> 288 {
>> 289 platform_driver_unregister(&pxa2xx_ac97_driver);
>> 290 }
>> 291 module_exit(pxa_ac97_exit);
298 292
299 MODULE_AUTHOR("Nicolas Pitre"); 293 MODULE_AUTHOR("Nicolas Pitre");
300 MODULE_DESCRIPTION("AC97 driver for the Intel 294 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
301 MODULE_LICENSE("GPL"); 295 MODULE_LICENSE("GPL");
302 MODULE_ALIAS("platform:pxa2xx-ac97"); <<
303 296
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