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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
4 *
5 * Author: Nicolas Pitre
6 * Created: Dec 02, 2004
7 * Copyright: MontaVista Software Inc.
8 */
9
10#include <linux/init.h>
11#include <linux/io.h>
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/dmaengine.h>
15#include <linux/dma/pxa-dma.h>
16
17#include <sound/ac97/controller.h>
18#include <sound/core.h>
19#include <sound/ac97_codec.h>
20#include <sound/soc.h>
21#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 Register */
27#define MODR 0x0140 /* Modem FIFO Data Register */
28#define MCDR 0x0060 /* Mic-in FIFO Data Register */
29
30static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
31{
32 pxa2xx_ac97_try_warm_reset();
33
34 pxa2xx_ac97_finish_reset();
35}
36
37static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
38{
39 pxa2xx_ac97_try_cold_reset();
40
41 pxa2xx_ac97_finish_reset();
42}
43
44static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
45 unsigned short reg)
46{
47 return pxa2xx_ac97_read(slot, reg);
48}
49
50static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
51 unsigned short reg, unsigned short val)
52{
53 return pxa2xx_ac97_write(slot, reg, val);
54}
55
56static struct ac97_controller_ops pxa2xx_ac97_ops = {
57 .read = pxa2xx_ac97_read_actrl,
58 .write = pxa2xx_ac97_write_actrl,
59 .warm_reset = pxa2xx_ac97_warm_reset,
60 .reset = pxa2xx_ac97_cold_reset,
61};
62
63static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
64 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
65 .chan_name = "pcm_pcm_stereo_in",
66 .maxburst = 32,
67};
68
69static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
70 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
71 .chan_name = "pcm_pcm_stereo_out",
72 .maxburst = 32,
73};
74
75static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
76 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
77 .chan_name = "pcm_aux_mono_out",
78 .maxburst = 16,
79};
80
81static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
82 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
83 .chan_name = "pcm_aux_mono_in",
84 .maxburst = 16,
85};
86
87static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
88 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
89 .chan_name = "pcm_aux_mic_mono",
90 .maxburst = 16,
91};
92
93static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
94 struct snd_soc_dai *cpu_dai)
95{
96 struct snd_dmaengine_dai_dma_data *dma_data;
97
98 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
99 dma_data = &pxa2xx_ac97_pcm_stereo_out;
100 else
101 dma_data = &pxa2xx_ac97_pcm_stereo_in;
102
103 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
104
105 return 0;
106}
107
108static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
109 struct snd_soc_dai *cpu_dai)
110{
111 struct snd_dmaengine_dai_dma_data *dma_data;
112
113 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
114 dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
115 else
116 dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
117
118 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
119
120 return 0;
121}
122
123static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
124 struct snd_soc_dai *cpu_dai)
125{
126 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
127 return -ENODEV;
128 snd_soc_dai_set_dma_data(cpu_dai, substream,
129 &pxa2xx_ac97_pcm_mic_mono_in);
130
131 return 0;
132}
133
134#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
135 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
136 SNDRV_PCM_RATE_48000)
137
138static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
139 .startup = pxa2xx_ac97_hifi_startup,
140};
141
142static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
143 .startup = pxa2xx_ac97_aux_startup,
144};
145
146static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
147 .startup = pxa2xx_ac97_mic_startup,
148};
149
150/*
151 * There is only 1 physical AC97 interface for pxa2xx, but it
152 * has extra fifo's that can be used for aux DACs and ADCs.
153 */
154static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
155{
156 .name = "pxa2xx-ac97",
157 .playback = {
158 .stream_name = "AC97 Playback",
159 .channels_min = 2,
160 .channels_max = 2,
161 .rates = PXA2XX_AC97_RATES,
162 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
163 .capture = {
164 .stream_name = "AC97 Capture",
165 .channels_min = 2,
166 .channels_max = 2,
167 .rates = PXA2XX_AC97_RATES,
168 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
169 .ops = &pxa_ac97_hifi_dai_ops,
170},
171{
172 .name = "pxa2xx-ac97-aux",
173 .playback = {
174 .stream_name = "AC97 Aux Playback",
175 .channels_min = 1,
176 .channels_max = 1,
177 .rates = PXA2XX_AC97_RATES,
178 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
179 .capture = {
180 .stream_name = "AC97 Aux Capture",
181 .channels_min = 1,
182 .channels_max = 1,
183 .rates = PXA2XX_AC97_RATES,
184 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
185 .ops = &pxa_ac97_aux_dai_ops,
186},
187{
188 .name = "pxa2xx-ac97-mic",
189 .capture = {
190 .stream_name = "AC97 Mic Capture",
191 .channels_min = 1,
192 .channels_max = 1,
193 .rates = PXA2XX_AC97_RATES,
194 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
195 .ops = &pxa_ac97_mic_dai_ops,
196},
197};
198
199static const struct snd_soc_component_driver pxa_ac97_component = {
200 .name = "pxa-ac97",
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_params,
205 .prepare = pxa2xx_soc_pcm_prepare,
206 .trigger = pxa2xx_soc_pcm_trigger,
207 .pointer = pxa2xx_soc_pcm_pointer,
208};
209
210#ifdef CONFIG_OF
211static const struct of_device_id pxa2xx_ac97_dt_ids[] = {
212 { .compatible = "marvell,pxa250-ac97", },
213 { .compatible = "marvell,pxa270-ac97", },
214 { .compatible = "marvell,pxa300-ac97", },
215 { }
216};
217MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids);
218
219#endif
220
221static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
222{
223 int ret;
224 struct ac97_controller *ctrl;
225 pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
226 struct resource *regs;
227 void **codecs_pdata;
228
229 if (pdev->id != -1) {
230 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
231 return -ENXIO;
232 }
233
234 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
235 if (!regs)
236 return -ENXIO;
237
238 pxa2xx_ac97_pcm_stereo_in.addr = regs->start + PCDR;
239 pxa2xx_ac97_pcm_stereo_out.addr = regs->start + PCDR;
240 pxa2xx_ac97_pcm_aux_mono_out.addr = regs->start + MODR;
241 pxa2xx_ac97_pcm_aux_mono_in.addr = regs->start + MODR;
242 pxa2xx_ac97_pcm_mic_mono_in.addr = regs->start + MCDR;
243
244 ret = pxa2xx_ac97_hw_probe(pdev);
245 if (ret) {
246 dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
247 return ret;
248 }
249
250 codecs_pdata = pdata ? pdata->codec_pdata : NULL;
251 ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
252 AC97_SLOTS_AVAILABLE_ALL,
253 codecs_pdata);
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 probe; we may need the machine
259 * driver to do interesting things with the clocking to get us up
260 * and running.
261 */
262 return devm_snd_soc_register_component(&pdev->dev, &pxa_ac97_component,
263 pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver));
264}
265
266static void pxa2xx_ac97_dev_remove(struct platform_device *pdev)
267{
268 struct ac97_controller *ctrl = platform_get_drvdata(pdev);
269
270 snd_ac97_controller_unregister(ctrl);
271 pxa2xx_ac97_hw_remove(pdev);
272}
273
274static int pxa2xx_ac97_dev_suspend(struct device *dev)
275{
276 return pxa2xx_ac97_hw_suspend();
277}
278
279static int pxa2xx_ac97_dev_resume(struct device *dev)
280{
281 return pxa2xx_ac97_hw_resume();
282}
283
284static DEFINE_SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
285 pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
286
287static struct platform_driver pxa2xx_ac97_driver = {
288 .probe = pxa2xx_ac97_dev_probe,
289 .remove = pxa2xx_ac97_dev_remove,
290 .driver = {
291 .name = "pxa2xx-ac97",
292 .pm = &pxa2xx_ac97_pm_ops,
293 .of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids),
294 },
295};
296
297module_platform_driver(pxa2xx_ac97_driver);
298
299MODULE_AUTHOR("Nicolas Pitre");
300MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
301MODULE_LICENSE("GPL");
302MODULE_ALIAS("platform:pxa2xx-ac97");
1/*
2 * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
3 *
4 * Author: Nicolas Pitre
5 * Created: Dec 02, 2004
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.
11 */
12
13#include <linux/init.h>
14#include <linux/io.h>
15#include <linux/module.h>
16#include <linux/platform_device.h>
17#include <linux/dmaengine.h>
18#include <linux/dma/pxa-dma.h>
19
20#include <sound/core.h>
21#include <sound/ac97_codec.h>
22#include <sound/soc.h>
23#include <sound/pxa2xx-lib.h>
24#include <sound/dmaengine_pcm.h>
25
26#include <mach/hardware.h>
27#include <mach/regs-ac97.h>
28#include <mach/audio.h>
29
30#include "pxa2xx-ac97.h"
31
32static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
33{
34 pxa2xx_ac97_try_warm_reset(ac97);
35
36 pxa2xx_ac97_finish_reset(ac97);
37}
38
39static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
40{
41 pxa2xx_ac97_try_cold_reset(ac97);
42
43 pxa2xx_ac97_finish_reset(ac97);
44}
45
46static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
47 .read = pxa2xx_ac97_read,
48 .write = pxa2xx_ac97_write,
49 .warm_reset = pxa2xx_ac97_warm_reset,
50 .reset = pxa2xx_ac97_cold_reset,
51};
52
53static struct pxad_param pxa2xx_ac97_pcm_stereo_in_req = {
54 .prio = PXAD_PRIO_LOWEST,
55 .drcmr = 11,
56};
57
58static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
59 .addr = __PREG(PCDR),
60 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
61 .maxburst = 32,
62 .filter_data = &pxa2xx_ac97_pcm_stereo_in_req,
63};
64
65static struct pxad_param pxa2xx_ac97_pcm_stereo_out_req = {
66 .prio = PXAD_PRIO_LOWEST,
67 .drcmr = 12,
68};
69
70static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
71 .addr = __PREG(PCDR),
72 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
73 .maxburst = 32,
74 .filter_data = &pxa2xx_ac97_pcm_stereo_out_req,
75};
76
77static struct pxad_param pxa2xx_ac97_pcm_aux_mono_out_req = {
78 .prio = PXAD_PRIO_LOWEST,
79 .drcmr = 10,
80};
81static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
82 .addr = __PREG(MODR),
83 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
84 .maxburst = 16,
85 .filter_data = &pxa2xx_ac97_pcm_aux_mono_out_req,
86};
87
88static struct pxad_param pxa2xx_ac97_pcm_aux_mono_in_req = {
89 .prio = PXAD_PRIO_LOWEST,
90 .drcmr = 9,
91};
92static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
93 .addr = __PREG(MODR),
94 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
95 .maxburst = 16,
96 .filter_data = &pxa2xx_ac97_pcm_aux_mono_in_req,
97};
98
99static struct pxad_param pxa2xx_ac97_pcm_aux_mic_mono_req = {
100 .prio = PXAD_PRIO_LOWEST,
101 .drcmr = 8,
102};
103static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
104 .addr = __PREG(MCDR),
105 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
106 .maxburst = 16,
107 .filter_data = &pxa2xx_ac97_pcm_aux_mic_mono_req,
108};
109
110static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
111 struct snd_soc_dai *cpu_dai)
112{
113 struct snd_dmaengine_dai_dma_data *dma_data;
114
115 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
116 dma_data = &pxa2xx_ac97_pcm_stereo_out;
117 else
118 dma_data = &pxa2xx_ac97_pcm_stereo_in;
119
120 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
121
122 return 0;
123}
124
125static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
126 struct snd_soc_dai *cpu_dai)
127{
128 struct snd_dmaengine_dai_dma_data *dma_data;
129
130 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
131 dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
132 else
133 dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
134
135 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
136
137 return 0;
138}
139
140static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
141 struct snd_soc_dai *cpu_dai)
142{
143 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
144 return -ENODEV;
145 else
146 snd_soc_dai_set_dma_data(cpu_dai, substream,
147 &pxa2xx_ac97_pcm_mic_mono_in);
148
149 return 0;
150}
151
152#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
153 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
154 SNDRV_PCM_RATE_48000)
155
156static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
157 .startup = pxa2xx_ac97_hifi_startup,
158};
159
160static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
161 .startup = pxa2xx_ac97_aux_startup,
162};
163
164static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
165 .startup = pxa2xx_ac97_mic_startup,
166};
167
168/*
169 * There is only 1 physical AC97 interface for pxa2xx, but it
170 * has extra fifo's that can be used for aux DACs and ADCs.
171 */
172static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
173{
174 .name = "pxa2xx-ac97",
175 .bus_control = true,
176 .playback = {
177 .stream_name = "AC97 Playback",
178 .channels_min = 2,
179 .channels_max = 2,
180 .rates = PXA2XX_AC97_RATES,
181 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
182 .capture = {
183 .stream_name = "AC97 Capture",
184 .channels_min = 2,
185 .channels_max = 2,
186 .rates = PXA2XX_AC97_RATES,
187 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
188 .ops = &pxa_ac97_hifi_dai_ops,
189},
190{
191 .name = "pxa2xx-ac97-aux",
192 .bus_control = true,
193 .playback = {
194 .stream_name = "AC97 Aux Playback",
195 .channels_min = 1,
196 .channels_max = 1,
197 .rates = PXA2XX_AC97_RATES,
198 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
199 .capture = {
200 .stream_name = "AC97 Aux Capture",
201 .channels_min = 1,
202 .channels_max = 1,
203 .rates = PXA2XX_AC97_RATES,
204 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
205 .ops = &pxa_ac97_aux_dai_ops,
206},
207{
208 .name = "pxa2xx-ac97-mic",
209 .bus_control = true,
210 .capture = {
211 .stream_name = "AC97 Mic Capture",
212 .channels_min = 1,
213 .channels_max = 1,
214 .rates = PXA2XX_AC97_RATES,
215 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
216 .ops = &pxa_ac97_mic_dai_ops,
217},
218};
219
220static const struct snd_soc_component_driver pxa_ac97_component = {
221 .name = "pxa-ac97",
222};
223
224static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
225{
226 int ret;
227
228 if (pdev->id != -1) {
229 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
230 return -ENXIO;
231 }
232
233 ret = pxa2xx_ac97_hw_probe(pdev);
234 if (ret) {
235 dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
236 return ret;
237 }
238
239 ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
240 if (ret != 0)
241 return ret;
242
243 /* Punt most of the init to the SoC probe; we may need the machine
244 * driver to do interesting things with the clocking to get us up
245 * and running.
246 */
247 return snd_soc_register_component(&pdev->dev, &pxa_ac97_component,
248 pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver));
249}
250
251static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
252{
253 snd_soc_unregister_component(&pdev->dev);
254 snd_soc_set_ac97_ops(NULL);
255 pxa2xx_ac97_hw_remove(pdev);
256 return 0;
257}
258
259#ifdef CONFIG_PM_SLEEP
260static int pxa2xx_ac97_dev_suspend(struct device *dev)
261{
262 return pxa2xx_ac97_hw_suspend();
263}
264
265static int pxa2xx_ac97_dev_resume(struct device *dev)
266{
267 return pxa2xx_ac97_hw_resume();
268}
269
270static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
271 pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
272#endif
273
274static struct platform_driver pxa2xx_ac97_driver = {
275 .probe = pxa2xx_ac97_dev_probe,
276 .remove = pxa2xx_ac97_dev_remove,
277 .driver = {
278 .name = "pxa2xx-ac97",
279#ifdef CONFIG_PM_SLEEP
280 .pm = &pxa2xx_ac97_pm_ops,
281#endif
282 },
283};
284
285module_platform_driver(pxa2xx_ac97_driver);
286
287MODULE_AUTHOR("Nicolas Pitre");
288MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
289MODULE_LICENSE("GPL");