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22#include <linux/init.h>
23#include <linux/slab.h>
24#include <linux/module.h>
25#include <linux/kernel.h>
26#include <linux/device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/ac97_codec.h>
30#include <sound/initval.h>
31#include <sound/soc.h>
32
33#include "ad1980.h"
34
35
36
37
38static const u16 ad1980_reg[] = {
39 0x0090, 0x8000, 0x8000, 0x8000,
40 0x0000, 0x0000, 0x8008, 0x8008,
41 0x8808, 0x8808, 0x0000, 0x8808,
42 0x8808, 0x0000, 0x8000, 0x0000,
43 0x0000, 0x0000, 0x0000, 0x0000,
44 0x03c7, 0x0000, 0xbb80, 0xbb80,
45 0xbb80, 0xbb80, 0x0000, 0x8080,
46 0x8080, 0x2000, 0x0000, 0x0000,
47 0x0000, 0x0000, 0x0000, 0x0000,
48 0x0000, 0x0000, 0x0000, 0x0000,
49 0x0000, 0x0000, 0x0000, 0x0000,
50 0x0000, 0x0000, 0x0000, 0x0000,
51 0x8080, 0x0000, 0x0000, 0x0000,
52 0x0000, 0x0000, 0x0000, 0x0000,
53 0x0000, 0x0000, 0x1001, 0x0000,
54 0x0000, 0x0000, 0x4144, 0x5370
55};
56
57static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
58 "Stereo Mix", "Mono Mix", "Phone"};
59
60static const struct soc_enum ad1980_cap_src =
61 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
62
63static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
64SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
65SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
66
67SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
68SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
69
70SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
71SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
72
73SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
74SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
75
76SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
77SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
78
79SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
80SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
81
82SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
83SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
84
85SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
86SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
87
88SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
89SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
90
91SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
92SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
93
94SOC_ENUM("Capture Source", ad1980_cap_src),
95
96SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
97};
98
99static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
100SND_SOC_DAPM_INPUT("MIC1"),
101SND_SOC_DAPM_INPUT("MIC2"),
102SND_SOC_DAPM_INPUT("CD_L"),
103SND_SOC_DAPM_INPUT("CD_R"),
104SND_SOC_DAPM_INPUT("AUX_L"),
105SND_SOC_DAPM_INPUT("AUX_R"),
106SND_SOC_DAPM_INPUT("LINE_IN_L"),
107SND_SOC_DAPM_INPUT("LINE_IN_R"),
108
109SND_SOC_DAPM_OUTPUT("LFE_OUT"),
110SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
111SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
112SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
113SND_SOC_DAPM_OUTPUT("MONO_OUT"),
114SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
115SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
116};
117
118static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
119 { "Capture", NULL, "MIC1" },
120 { "Capture", NULL, "MIC2" },
121 { "Capture", NULL, "CD_L" },
122 { "Capture", NULL, "CD_R" },
123 { "Capture", NULL, "AUX_L" },
124 { "Capture", NULL, "AUX_R" },
125 { "Capture", NULL, "LINE_IN_L" },
126 { "Capture", NULL, "LINE_IN_R" },
127
128 { "LFE_OUT", NULL, "Playback" },
129 { "CENTER_OUT", NULL, "Playback" },
130 { "LINE_OUT_L", NULL, "Playback" },
131 { "LINE_OUT_R", NULL, "Playback" },
132 { "MONO_OUT", NULL, "Playback" },
133 { "HP_OUT_L", NULL, "Playback" },
134 { "HP_OUT_R", NULL, "Playback" },
135};
136
137static unsigned int ac97_read(struct snd_soc_codec *codec,
138 unsigned int reg)
139{
140 u16 *cache = codec->reg_cache;
141
142 switch (reg) {
143 case AC97_RESET:
144 case AC97_INT_PAGING:
145 case AC97_POWERDOWN:
146 case AC97_EXTENDED_STATUS:
147 case AC97_VENDOR_ID1:
148 case AC97_VENDOR_ID2:
149 return soc_ac97_ops->read(codec->ac97, reg);
150 default:
151 reg = reg >> 1;
152
153 if (reg >= ARRAY_SIZE(ad1980_reg))
154 return -EINVAL;
155
156 return cache[reg];
157 }
158}
159
160static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
161 unsigned int val)
162{
163 u16 *cache = codec->reg_cache;
164
165 soc_ac97_ops->write(codec->ac97, reg, val);
166 reg = reg >> 1;
167 if (reg < ARRAY_SIZE(ad1980_reg))
168 cache[reg] = val;
169
170 return 0;
171}
172
173static struct snd_soc_dai_driver ad1980_dai = {
174 .name = "ad1980-hifi",
175 .ac97_control = 1,
176 .playback = {
177 .stream_name = "Playback",
178 .channels_min = 2,
179 .channels_max = 6,
180 .rates = SNDRV_PCM_RATE_48000,
181 .formats = SND_SOC_STD_AC97_FMTS, },
182 .capture = {
183 .stream_name = "Capture",
184 .channels_min = 2,
185 .channels_max = 2,
186 .rates = SNDRV_PCM_RATE_48000,
187 .formats = SND_SOC_STD_AC97_FMTS, },
188};
189
190static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
191{
192 u16 retry_cnt = 0;
193
194retry:
195 if (try_warm && soc_ac97_ops->warm_reset) {
196 soc_ac97_ops->warm_reset(codec->ac97);
197 if (ac97_read(codec, AC97_RESET) == 0x0090)
198 return 1;
199 }
200
201 soc_ac97_ops->reset(codec->ac97);
202
203
204
205 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
206
207 if (ac97_read(codec, AC97_RESET) != 0x0090)
208 goto err;
209 return 0;
210
211err:
212 while (retry_cnt++ < 10)
213 goto retry;
214
215 printk(KERN_ERR "AD1980 AC97 reset failed\n");
216 return -EIO;
217}
218
219static int ad1980_soc_probe(struct snd_soc_codec *codec)
220{
221 int ret;
222 u16 vendor_id2;
223 u16 ext_status;
224
225 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
226
227 ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0);
228 if (ret < 0) {
229 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
230 return ret;
231 }
232
233 ret = ad1980_reset(codec, 0);
234 if (ret < 0) {
235 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
236 goto reset_err;
237 }
238
239
240 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) {
241 ret = -ENODEV;
242 goto reset_err;
243 }
244
245 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
246
247 if (vendor_id2 != 0x5370) {
248 if (vendor_id2 != 0x5374) {
249 ret = -ENODEV;
250 goto reset_err;
251 } else {
252 printk(KERN_WARNING "ad1980: "
253 "Found AD1981 - only 2/2 IN/OUT Channels "
254 "supported\n");
255 }
256 }
257
258
259 ac97_write(codec, AC97_MASTER, 0x0000);
260 ac97_write(codec, AC97_PCM, 0x0000);
261 ac97_write(codec, AC97_REC_GAIN, 0x0000);
262 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
263 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
264
265
266 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
267 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
268
269 snd_soc_add_codec_controls(codec, ad1980_snd_ac97_controls,
270 ARRAY_SIZE(ad1980_snd_ac97_controls));
271
272 return 0;
273
274reset_err:
275 snd_soc_free_ac97_codec(codec);
276 return ret;
277}
278
279static int ad1980_soc_remove(struct snd_soc_codec *codec)
280{
281 snd_soc_free_ac97_codec(codec);
282 return 0;
283}
284
285static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
286 .probe = ad1980_soc_probe,
287 .remove = ad1980_soc_remove,
288 .reg_cache_size = ARRAY_SIZE(ad1980_reg),
289 .reg_word_size = sizeof(u16),
290 .reg_cache_default = ad1980_reg,
291 .reg_cache_step = 2,
292 .write = ac97_write,
293 .read = ac97_read,
294
295 .dapm_widgets = ad1980_dapm_widgets,
296 .num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),
297 .dapm_routes = ad1980_dapm_routes,
298 .num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),
299};
300
301static int ad1980_probe(struct platform_device *pdev)
302{
303 return snd_soc_register_codec(&pdev->dev,
304 &soc_codec_dev_ad1980, &ad1980_dai, 1);
305}
306
307static int ad1980_remove(struct platform_device *pdev)
308{
309 snd_soc_unregister_codec(&pdev->dev);
310 return 0;
311}
312
313static struct platform_driver ad1980_codec_driver = {
314 .driver = {
315 .name = "ad1980",
316 .owner = THIS_MODULE,
317 },
318
319 .probe = ad1980_probe,
320 .remove = ad1980_remove,
321};
322
323module_platform_driver(ad1980_codec_driver);
324
325MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
326MODULE_AUTHOR("Roy Huang, Cliff Cai");
327MODULE_LICENSE("GPL");
328