1 // SPDX-License-Identifier: GPL-2.0-only 1
2 /*
3 * linux/sound/pxa2xx-ac97.c -- AC97 support f
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 Regis
27 #define MODR 0x0140 /* Modem FIFO Data Reg
28 #define MCDR 0x0060 /* Mic-in FIFO Data Re
29
30 static void pxa2xx_ac97_warm_reset(struct ac97
31 {
32 pxa2xx_ac97_try_warm_reset();
33
34 pxa2xx_ac97_finish_reset();
35 }
36
37 static void pxa2xx_ac97_cold_reset(struct ac97
38 {
39 pxa2xx_ac97_try_cold_reset();
40
41 pxa2xx_ac97_finish_reset();
42 }
43
44 static int pxa2xx_ac97_read_actrl(struct ac97_
45 unsigned sho
46 {
47 return pxa2xx_ac97_read(slot, reg);
48 }
49
50 static int pxa2xx_ac97_write_actrl(struct ac97
51 unsigned sh
52 {
53 return pxa2xx_ac97_write(slot, reg, va
54 }
55
56 static struct ac97_controller_ops pxa2xx_ac97_
57 .read = pxa2xx_ac97_read_actrl,
58 .write = pxa2xx_ac97_write_actrl,
59 .warm_reset = pxa2xx_ac97_warm_res
60 .reset = pxa2xx_ac97_cold_reset,
61 };
62
63 static struct snd_dmaengine_dai_dma_data pxa2x
64 .addr_width = DMA_SLAVE_BUSWIDTH_4
65 .chan_name = "pcm_pcm_stereo_in",
66 .maxburst = 32,
67 };
68
69 static struct snd_dmaengine_dai_dma_data pxa2x
70 .addr_width = DMA_SLAVE_BUSWIDTH_4
71 .chan_name = "pcm_pcm_stereo_out"
72 .maxburst = 32,
73 };
74
75 static struct snd_dmaengine_dai_dma_data pxa2x
76 .addr_width = DMA_SLAVE_BUSWIDTH_2
77 .chan_name = "pcm_aux_mono_out",
78 .maxburst = 16,
79 };
80
81 static struct snd_dmaengine_dai_dma_data pxa2x
82 .addr_width = DMA_SLAVE_BUSWIDTH_2
83 .chan_name = "pcm_aux_mono_in",
84 .maxburst = 16,
85 };
86
87 static struct snd_dmaengine_dai_dma_data pxa2x
88 .addr_width = DMA_SLAVE_BUSWIDTH_2
89 .chan_name = "pcm_aux_mic_mono",
90 .maxburst = 16,
91 };
92
93 static int pxa2xx_ac97_hifi_startup(struct snd
94 struct snd
95 {
96 struct snd_dmaengine_dai_dma_data *dma
97
98 if (substream->stream == SNDRV_PCM_STR
99 dma_data = &pxa2xx_ac97_pcm_st
100 else
101 dma_data = &pxa2xx_ac97_pcm_st
102
103 snd_soc_dai_set_dma_data(cpu_dai, subs
104
105 return 0;
106 }
107
108 static int pxa2xx_ac97_aux_startup(struct snd_
109 struct snd_
110 {
111 struct snd_dmaengine_dai_dma_data *dma
112
113 if (substream->stream == SNDRV_PCM_STR
114 dma_data = &pxa2xx_ac97_pcm_au
115 else
116 dma_data = &pxa2xx_ac97_pcm_au
117
118 snd_soc_dai_set_dma_data(cpu_dai, subs
119
120 return 0;
121 }
122
123 static int pxa2xx_ac97_mic_startup(struct snd_
124 struct snd_
125 {
126 if (substream->stream == SNDRV_PCM_STR
127 return -ENODEV;
128 snd_soc_dai_set_dma_data(cpu_dai, subs
129 &pxa2xx_ac97_
130
131 return 0;
132 }
133
134 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000
135 SNDRV_PCM_RATE_16000 | SNDRV_P
136 SNDRV_PCM_RATE_48000)
137
138 static const struct snd_soc_dai_ops pxa_ac97_h
139 .startup = pxa2xx_ac97_hifi_sta
140 };
141
142 static const struct snd_soc_dai_ops pxa_ac97_a
143 .startup = pxa2xx_ac97_aux_star
144 };
145
146 static const struct snd_soc_dai_ops pxa_ac97_m
147 .startup = pxa2xx_ac97_mic_star
148 };
149
150 /*
151 * There is only 1 physical AC97 interface for
152 * has extra fifo's that can be used for aux D
153 */
154 static struct snd_soc_dai_driver pxa_ac97_dai_
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_S1
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_S1
169 .ops = &pxa_ac97_hifi_dai_ops,
170 },
171 {
172 .name = "pxa2xx-ac97-aux",
173 .playback = {
174 .stream_name = "AC97 Aux Playb
175 .channels_min = 1,
176 .channels_max = 1,
177 .rates = PXA2XX_AC97_RATES,
178 .formats = SNDRV_PCM_FMTBIT_S1
179 .capture = {
180 .stream_name = "AC97 Aux Captu
181 .channels_min = 1,
182 .channels_max = 1,
183 .rates = PXA2XX_AC97_RATES,
184 .formats = SNDRV_PCM_FMTBIT_S1
185 .ops = &pxa_ac97_aux_dai_ops,
186 },
187 {
188 .name = "pxa2xx-ac97-mic",
189 .capture = {
190 .stream_name = "AC97 Mic Captu
191 .channels_min = 1,
192 .channels_max = 1,
193 .rates = PXA2XX_AC97_RATES,
194 .formats = SNDRV_PCM_FMTBIT_S1
195 .ops = &pxa_ac97_mic_dai_ops,
196 },
197 };
198
199 static const struct snd_soc_component_driver p
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_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
221 static int pxa2xx_ac97_dev_probe(struct platfo
222 {
223 int ret;
224 struct ac97_controller *ctrl;
225 pxa2xx_audio_ops_t *pdata = pdev->dev.
226 struct resource *regs;
227 void **codecs_pdata;
228
229 if (pdev->id != -1) {
230 dev_err(&pdev->dev, "PXA2xx ha
231 return -ENXIO;
232 }
233
234 regs = platform_get_resource(pdev, IOR
235 if (!regs)
236 return -ENXIO;
237
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 }
249
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
259 * driver to do interesting things wit
260 * and running.
261 */
262 return devm_snd_soc_register_component
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 }
273
274 static int pxa2xx_ac97_dev_suspend(struct devi
275 {
276 return pxa2xx_ac97_hw_suspend();
277 }
278
279 static int pxa2xx_ac97_dev_resume(struct devic
280 {
281 return pxa2xx_ac97_hw_resume();
282 }
283
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
288 .probe = pxa2xx_ac97_dev_prob
289 .remove = pxa2xx_ac97_dev_remo
290 .driver = {
291 .name = "pxa2xx-ac97",
292 .pm = &pxa2xx_ac97_pm_ops,
293 .of_match_table = of_match_ptr
294 },
295 };
296
297 module_platform_driver(pxa2xx_ac97_driver);
298
299 MODULE_AUTHOR("Nicolas Pitre");
300 MODULE_DESCRIPTION("AC97 driver for the Intel
301 MODULE_LICENSE("GPL");
302 MODULE_ALIAS("platform:pxa2xx-ac97");
303
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