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24#include <linux/delay.h>
25#include <sound/core.h>
26#include <sound/control.h>
27#include <sound/tlv.h>
28#include "wm8766.h"
29
30
31
32static void snd_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data)
33{
34 if (addr < WM8766_REG_COUNT)
35 wm->regs[addr] = data;
36 wm->ops.write(wm, addr, data);
37}
38
39
40
41static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1);
42
43static struct snd_wm8766_ctl snd_wm8766_default_ctl[WM8766_CTL_COUNT] = {
44 [WM8766_CTL_CH1_VOL] = {
45 .name = "Channel 1 Playback Volume",
46 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
47 .tlv = wm8766_tlv,
48 .reg1 = WM8766_REG_DACL1,
49 .reg2 = WM8766_REG_DACR1,
50 .mask1 = WM8766_VOL_MASK,
51 .mask2 = WM8766_VOL_MASK,
52 .max = 0xff,
53 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
54 },
55 [WM8766_CTL_CH2_VOL] = {
56 .name = "Channel 2 Playback Volume",
57 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
58 .tlv = wm8766_tlv,
59 .reg1 = WM8766_REG_DACL2,
60 .reg2 = WM8766_REG_DACR2,
61 .mask1 = WM8766_VOL_MASK,
62 .mask2 = WM8766_VOL_MASK,
63 .max = 0xff,
64 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
65 },
66 [WM8766_CTL_CH3_VOL] = {
67 .name = "Channel 3 Playback Volume",
68 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
69 .tlv = wm8766_tlv,
70 .reg1 = WM8766_REG_DACL3,
71 .reg2 = WM8766_REG_DACR3,
72 .mask1 = WM8766_VOL_MASK,
73 .mask2 = WM8766_VOL_MASK,
74 .max = 0xff,
75 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
76 },
77 [WM8766_CTL_CH1_SW] = {
78 .name = "Channel 1 Playback Switch",
79 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
80 .reg1 = WM8766_REG_DACCTRL2,
81 .mask1 = WM8766_DAC2_MUTE1,
82 .flags = WM8766_FLAG_INVERT,
83 },
84 [WM8766_CTL_CH2_SW] = {
85 .name = "Channel 2 Playback Switch",
86 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
87 .reg1 = WM8766_REG_DACCTRL2,
88 .mask1 = WM8766_DAC2_MUTE2,
89 .flags = WM8766_FLAG_INVERT,
90 },
91 [WM8766_CTL_CH3_SW] = {
92 .name = "Channel 3 Playback Switch",
93 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
94 .reg1 = WM8766_REG_DACCTRL2,
95 .mask1 = WM8766_DAC2_MUTE3,
96 .flags = WM8766_FLAG_INVERT,
97 },
98 [WM8766_CTL_PHASE1_SW] = {
99 .name = "Channel 1 Phase Invert Playback Switch",
100 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
101 .reg1 = WM8766_REG_IFCTRL,
102 .mask1 = WM8766_PHASE_INVERT1,
103 },
104 [WM8766_CTL_PHASE2_SW] = {
105 .name = "Channel 2 Phase Invert Playback Switch",
106 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
107 .reg1 = WM8766_REG_IFCTRL,
108 .mask1 = WM8766_PHASE_INVERT2,
109 },
110 [WM8766_CTL_PHASE3_SW] = {
111 .name = "Channel 3 Phase Invert Playback Switch",
112 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
113 .reg1 = WM8766_REG_IFCTRL,
114 .mask1 = WM8766_PHASE_INVERT3,
115 },
116 [WM8766_CTL_DEEMPH1_SW] = {
117 .name = "Channel 1 Deemphasis Playback Switch",
118 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
119 .reg1 = WM8766_REG_DACCTRL2,
120 .mask1 = WM8766_DAC2_DEEMP1,
121 },
122 [WM8766_CTL_DEEMPH2_SW] = {
123 .name = "Channel 2 Deemphasis Playback Switch",
124 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
125 .reg1 = WM8766_REG_DACCTRL2,
126 .mask1 = WM8766_DAC2_DEEMP2,
127 },
128 [WM8766_CTL_DEEMPH3_SW] = {
129 .name = "Channel 3 Deemphasis Playback Switch",
130 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
131 .reg1 = WM8766_REG_DACCTRL2,
132 .mask1 = WM8766_DAC2_DEEMP3,
133 },
134 [WM8766_CTL_IZD_SW] = {
135 .name = "Infinite Zero Detect Playback Switch",
136 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
137 .reg1 = WM8766_REG_DACCTRL1,
138 .mask1 = WM8766_DAC_IZD,
139 },
140 [WM8766_CTL_ZC_SW] = {
141 .name = "Zero Cross Detect Playback Switch",
142 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
143 .reg1 = WM8766_REG_DACCTRL2,
144 .mask1 = WM8766_DAC2_ZCD,
145 .flags = WM8766_FLAG_INVERT,
146 },
147};
148
149
150
151void snd_wm8766_init(struct snd_wm8766 *wm)
152{
153 int i;
154 static const u16 default_values[] = {
155 0x000, 0x100,
156 0x120, 0x000,
157 0x000, 0x100, 0x000, 0x100, 0x000,
158 0x000, 0x080,
159 };
160
161 memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl));
162
163 snd_wm8766_write(wm, WM8766_REG_RESET, 0x00);
164 udelay(10);
165
166 for (i = 0; i < ARRAY_SIZE(default_values); i++)
167 snd_wm8766_write(wm, i, default_values[i]);
168}
169
170void snd_wm8766_resume(struct snd_wm8766 *wm)
171{
172 int i;
173
174 for (i = 0; i < WM8766_REG_COUNT; i++)
175 snd_wm8766_write(wm, i, wm->regs[i]);
176}
177
178void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac)
179{
180 u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK;
181
182 dac &= WM8766_IF_MASK;
183 snd_wm8766_write(wm, WM8766_REG_IFCTRL, val | dac);
184}
185
186void snd_wm8766_volume_restore(struct snd_wm8766 *wm)
187{
188 u16 val = wm->regs[WM8766_REG_DACR1];
189
190 snd_wm8766_write(wm, WM8766_REG_DACR1, val | WM8766_VOL_UPDATE);
191}
192
193
194
195static int snd_wm8766_volume_info(struct snd_kcontrol *kcontrol,
196 struct snd_ctl_elem_info *uinfo)
197{
198 struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
199 int n = kcontrol->private_value;
200
201 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
202 uinfo->count = (wm->ctl[n].flags & WM8766_FLAG_STEREO) ? 2 : 1;
203 uinfo->value.integer.min = wm->ctl[n].min;
204 uinfo->value.integer.max = wm->ctl[n].max;
205
206 return 0;
207}
208
209static int snd_wm8766_enum_info(struct snd_kcontrol *kcontrol,
210 struct snd_ctl_elem_info *uinfo)
211{
212 struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
213 int n = kcontrol->private_value;
214
215 return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max,
216 wm->ctl[n].enum_names);
217}
218
219static int snd_wm8766_ctl_get(struct snd_kcontrol *kcontrol,
220 struct snd_ctl_elem_value *ucontrol)
221{
222 struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
223 int n = kcontrol->private_value;
224 u16 val1, val2;
225
226 if (wm->ctl[n].get)
227 wm->ctl[n].get(wm, &val1, &val2);
228 else {
229 val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1;
230 val1 >>= __ffs(wm->ctl[n].mask1);
231 if (wm->ctl[n].flags & WM8766_FLAG_STEREO) {
232 val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;
233 val2 >>= __ffs(wm->ctl[n].mask2);
234 if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
235 val2 &= ~WM8766_VOL_UPDATE;
236 }
237 }
238 if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
239 val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
240 if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
241 val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
242 }
243 ucontrol->value.integer.value[0] = val1;
244 if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
245 ucontrol->value.integer.value[1] = val2;
246
247 return 0;
248}
249
250static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol,
251 struct snd_ctl_elem_value *ucontrol)
252{
253 struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
254 int n = kcontrol->private_value;
255 u16 val, regval1, regval2;
256
257
258 regval1 = ucontrol->value.integer.value[0];
259 regval2 = ucontrol->value.integer.value[1];
260 if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
261 regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min);
262 regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min);
263 }
264 if (wm->ctl[n].set)
265 wm->ctl[n].set(wm, regval1, regval2);
266 else {
267 val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1;
268 val |= regval1 << __ffs(wm->ctl[n].mask1);
269
270 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
271 wm->ctl[n].reg1 == wm->ctl[n].reg2) {
272 val &= ~wm->ctl[n].mask2;
273 val |= regval2 << __ffs(wm->ctl[n].mask2);
274 }
275 snd_wm8766_write(wm, wm->ctl[n].reg1, val);
276
277 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
278 wm->ctl[n].reg1 != wm->ctl[n].reg2) {
279 val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2;
280 val |= regval2 << __ffs(wm->ctl[n].mask2);
281 if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
282 val |= WM8766_VOL_UPDATE;
283 snd_wm8766_write(wm, wm->ctl[n].reg2, val);
284 }
285 }
286
287 return 0;
288}
289
290static int snd_wm8766_add_control(struct snd_wm8766 *wm, int num)
291{
292 struct snd_kcontrol_new cont;
293 struct snd_kcontrol *ctl;
294
295 memset(&cont, 0, sizeof(cont));
296 cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
297 cont.private_value = num;
298 cont.name = wm->ctl[num].name;
299 cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
300 if (wm->ctl[num].flags & WM8766_FLAG_LIM ||
301 wm->ctl[num].flags & WM8766_FLAG_ALC)
302 cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
303 cont.tlv.p = NULL;
304 cont.get = snd_wm8766_ctl_get;
305 cont.put = snd_wm8766_ctl_put;
306
307 switch (wm->ctl[num].type) {
308 case SNDRV_CTL_ELEM_TYPE_INTEGER:
309 cont.info = snd_wm8766_volume_info;
310 cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
311 cont.tlv.p = wm->ctl[num].tlv;
312 break;
313 case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
314 wm->ctl[num].max = 1;
315 if (wm->ctl[num].flags & WM8766_FLAG_STEREO)
316 cont.info = snd_ctl_boolean_stereo_info;
317 else
318 cont.info = snd_ctl_boolean_mono_info;
319 break;
320 case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
321 cont.info = snd_wm8766_enum_info;
322 break;
323 default:
324 return -EINVAL;
325 }
326 ctl = snd_ctl_new1(&cont, wm);
327 if (!ctl)
328 return -ENOMEM;
329 wm->ctl[num].kctl = ctl;
330
331 return snd_ctl_add(wm->card, ctl);
332}
333
334int snd_wm8766_build_controls(struct snd_wm8766 *wm)
335{
336 int err, i;
337
338 for (i = 0; i < WM8766_CTL_COUNT; i++)
339 if (wm->ctl[i].name) {
340 err = snd_wm8766_add_control(wm, i);
341 if (err < 0)
342 return err;
343 }
344
345 return 0;
346}
347
