Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Routines for control of the AK4117 via 4-wire serial interface | |
3 | * IEC958 (S/PDIF) receiver by Asahi Kasei | |
c1017a4c | 4 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | ||
1da177e4 LT |
23 | #include <linux/slab.h> |
24 | #include <linux/delay.h> | |
da155d5b | 25 | #include <linux/module.h> |
1da177e4 LT |
26 | #include <sound/core.h> |
27 | #include <sound/control.h> | |
28 | #include <sound/pcm.h> | |
29 | #include <sound/ak4117.h> | |
30 | #include <sound/asoundef.h> | |
31 | ||
c1017a4c | 32 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
1da177e4 LT |
33 | MODULE_DESCRIPTION("AK4117 IEC958 (S/PDIF) receiver by Asahi Kasei"); |
34 | MODULE_LICENSE("GPL"); | |
35 | ||
36 | #define AK4117_ADDR 0x00 /* fixed address */ | |
37 | ||
38 | static void snd_ak4117_timer(unsigned long data); | |
39 | ||
97f02e05 | 40 | static void reg_write(struct ak4117 *ak4117, unsigned char reg, unsigned char val) |
1da177e4 LT |
41 | { |
42 | ak4117->write(ak4117->private_data, reg, val); | |
43 | if (reg < sizeof(ak4117->regmap)) | |
44 | ak4117->regmap[reg] = val; | |
45 | } | |
46 | ||
97f02e05 | 47 | static inline unsigned char reg_read(struct ak4117 *ak4117, unsigned char reg) |
1da177e4 LT |
48 | { |
49 | return ak4117->read(ak4117->private_data, reg); | |
50 | } | |
51 | ||
52 | #if 0 | |
97f02e05 | 53 | static void reg_dump(struct ak4117 *ak4117) |
1da177e4 LT |
54 | { |
55 | int i; | |
56 | ||
99b359ba | 57 | printk(KERN_DEBUG "AK4117 REG DUMP:\n"); |
1da177e4 | 58 | for (i = 0; i < 0x1b; i++) |
99b359ba | 59 | printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4117, i), i < sizeof(ak4117->regmap) ? ak4117->regmap[i] : 0); |
1da177e4 LT |
60 | } |
61 | #endif | |
62 | ||
97f02e05 | 63 | static void snd_ak4117_free(struct ak4117 *chip) |
1da177e4 | 64 | { |
115b94d5 | 65 | del_timer_sync(&chip->timer); |
1da177e4 LT |
66 | kfree(chip); |
67 | } | |
68 | ||
97f02e05 | 69 | static int snd_ak4117_dev_free(struct snd_device *device) |
1da177e4 | 70 | { |
97f02e05 | 71 | struct ak4117 *chip = device->device_data; |
1da177e4 LT |
72 | snd_ak4117_free(chip); |
73 | return 0; | |
74 | } | |
75 | ||
97f02e05 | 76 | int snd_ak4117_create(struct snd_card *card, ak4117_read_t *read, ak4117_write_t *write, |
517400cb | 77 | const unsigned char pgm[5], void *private_data, struct ak4117 **r_ak4117) |
1da177e4 | 78 | { |
97f02e05 | 79 | struct ak4117 *chip; |
1da177e4 LT |
80 | int err = 0; |
81 | unsigned char reg; | |
97f02e05 | 82 | static struct snd_device_ops ops = { |
1da177e4 LT |
83 | .dev_free = snd_ak4117_dev_free, |
84 | }; | |
85 | ||
561b220a | 86 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
1da177e4 LT |
87 | if (chip == NULL) |
88 | return -ENOMEM; | |
89 | spin_lock_init(&chip->lock); | |
90 | chip->card = card; | |
91 | chip->read = read; | |
92 | chip->write = write; | |
93 | chip->private_data = private_data; | |
867a0e05 | 94 | setup_timer(&chip->timer, snd_ak4117_timer, (unsigned long)chip); |
1da177e4 LT |
95 | |
96 | for (reg = 0; reg < 5; reg++) | |
97 | chip->regmap[reg] = pgm[reg]; | |
98 | snd_ak4117_reinit(chip); | |
99 | ||
100 | chip->rcs0 = reg_read(chip, AK4117_REG_RCS0) & ~(AK4117_QINT | AK4117_CINT | AK4117_STC); | |
101 | chip->rcs1 = reg_read(chip, AK4117_REG_RCS1); | |
102 | chip->rcs2 = reg_read(chip, AK4117_REG_RCS2); | |
103 | ||
104 | if ((err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops)) < 0) | |
105 | goto __fail; | |
106 | ||
107 | if (r_ak4117) | |
108 | *r_ak4117 = chip; | |
109 | return 0; | |
110 | ||
111 | __fail: | |
112 | snd_ak4117_free(chip); | |
3805e6a1 | 113 | return err; |
1da177e4 LT |
114 | } |
115 | ||
97f02e05 | 116 | void snd_ak4117_reg_write(struct ak4117 *chip, unsigned char reg, unsigned char mask, unsigned char val) |
1da177e4 LT |
117 | { |
118 | if (reg >= 5) | |
119 | return; | |
120 | reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); | |
121 | } | |
122 | ||
97f02e05 | 123 | void snd_ak4117_reinit(struct ak4117 *chip) |
1da177e4 LT |
124 | { |
125 | unsigned char old = chip->regmap[AK4117_REG_PWRDN], reg; | |
126 | ||
127 | del_timer(&chip->timer); | |
128 | chip->init = 1; | |
129 | /* bring the chip to reset state and powerdown state */ | |
130 | reg_write(chip, AK4117_REG_PWRDN, 0); | |
131 | udelay(200); | |
132 | /* release reset, but leave powerdown */ | |
133 | reg_write(chip, AK4117_REG_PWRDN, (old | AK4117_RST) & ~AK4117_PWN); | |
134 | udelay(200); | |
135 | for (reg = 1; reg < 5; reg++) | |
136 | reg_write(chip, reg, chip->regmap[reg]); | |
137 | /* release powerdown, everything is initialized now */ | |
138 | reg_write(chip, AK4117_REG_PWRDN, old | AK4117_RST | AK4117_PWN); | |
139 | chip->init = 0; | |
867a0e05 | 140 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
141 | } |
142 | ||
143 | static unsigned int external_rate(unsigned char rcs1) | |
144 | { | |
145 | switch (rcs1 & (AK4117_FS0|AK4117_FS1|AK4117_FS2|AK4117_FS3)) { | |
146 | case AK4117_FS_32000HZ: return 32000; | |
147 | case AK4117_FS_44100HZ: return 44100; | |
148 | case AK4117_FS_48000HZ: return 48000; | |
149 | case AK4117_FS_88200HZ: return 88200; | |
150 | case AK4117_FS_96000HZ: return 96000; | |
151 | case AK4117_FS_176400HZ: return 176400; | |
152 | case AK4117_FS_192000HZ: return 192000; | |
153 | default: return 0; | |
154 | } | |
155 | } | |
156 | ||
97f02e05 TI |
157 | static int snd_ak4117_in_error_info(struct snd_kcontrol *kcontrol, |
158 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
159 | { |
160 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
161 | uinfo->count = 1; | |
162 | uinfo->value.integer.min = 0; | |
163 | uinfo->value.integer.max = LONG_MAX; | |
164 | return 0; | |
165 | } | |
166 | ||
97f02e05 TI |
167 | static int snd_ak4117_in_error_get(struct snd_kcontrol *kcontrol, |
168 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 169 | { |
97f02e05 | 170 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
171 | |
172 | spin_lock_irq(&chip->lock); | |
239480ab TI |
173 | ucontrol->value.integer.value[0] = |
174 | chip->errors[kcontrol->private_value]; | |
175 | chip->errors[kcontrol->private_value] = 0; | |
1da177e4 LT |
176 | spin_unlock_irq(&chip->lock); |
177 | return 0; | |
178 | } | |
179 | ||
a5ce8890 | 180 | #define snd_ak4117_in_bit_info snd_ctl_boolean_mono_info |
1da177e4 | 181 | |
97f02e05 TI |
182 | static int snd_ak4117_in_bit_get(struct snd_kcontrol *kcontrol, |
183 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 184 | { |
97f02e05 | 185 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
186 | unsigned char reg = kcontrol->private_value & 0xff; |
187 | unsigned char bit = (kcontrol->private_value >> 8) & 0xff; | |
188 | unsigned char inv = (kcontrol->private_value >> 31) & 1; | |
189 | ||
190 | ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; | |
191 | return 0; | |
192 | } | |
193 | ||
97f02e05 TI |
194 | static int snd_ak4117_rx_info(struct snd_kcontrol *kcontrol, |
195 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
196 | { |
197 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
198 | uinfo->count = 1; | |
199 | uinfo->value.integer.min = 0; | |
200 | uinfo->value.integer.max = 1; | |
201 | return 0; | |
202 | } | |
203 | ||
97f02e05 TI |
204 | static int snd_ak4117_rx_get(struct snd_kcontrol *kcontrol, |
205 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 206 | { |
97f02e05 | 207 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
208 | |
209 | ucontrol->value.integer.value[0] = (chip->regmap[AK4117_REG_IO] & AK4117_IPS) ? 1 : 0; | |
210 | return 0; | |
211 | } | |
212 | ||
97f02e05 TI |
213 | static int snd_ak4117_rx_put(struct snd_kcontrol *kcontrol, |
214 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 215 | { |
97f02e05 | 216 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
217 | int change; |
218 | u8 old_val; | |
219 | ||
220 | spin_lock_irq(&chip->lock); | |
221 | old_val = chip->regmap[AK4117_REG_IO]; | |
222 | change = !!ucontrol->value.integer.value[0] != ((old_val & AK4117_IPS) ? 1 : 0); | |
223 | if (change) | |
224 | reg_write(chip, AK4117_REG_IO, (old_val & ~AK4117_IPS) | (ucontrol->value.integer.value[0] ? AK4117_IPS : 0)); | |
225 | spin_unlock_irq(&chip->lock); | |
226 | return change; | |
227 | } | |
228 | ||
97f02e05 TI |
229 | static int snd_ak4117_rate_info(struct snd_kcontrol *kcontrol, |
230 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
231 | { |
232 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
233 | uinfo->count = 1; | |
234 | uinfo->value.integer.min = 0; | |
235 | uinfo->value.integer.max = 192000; | |
236 | return 0; | |
237 | } | |
238 | ||
97f02e05 TI |
239 | static int snd_ak4117_rate_get(struct snd_kcontrol *kcontrol, |
240 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 241 | { |
97f02e05 | 242 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
243 | |
244 | ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4117_REG_RCS1)); | |
245 | return 0; | |
246 | } | |
247 | ||
97f02e05 | 248 | static int snd_ak4117_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
249 | { |
250 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; | |
251 | uinfo->count = 1; | |
252 | return 0; | |
253 | } | |
254 | ||
97f02e05 TI |
255 | static int snd_ak4117_spdif_get(struct snd_kcontrol *kcontrol, |
256 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 257 | { |
97f02e05 | 258 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
259 | unsigned i; |
260 | ||
261 | for (i = 0; i < AK4117_REG_RXCSB_SIZE; i++) | |
262 | ucontrol->value.iec958.status[i] = reg_read(chip, AK4117_REG_RXCSB0 + i); | |
263 | return 0; | |
264 | } | |
265 | ||
97f02e05 | 266 | static int snd_ak4117_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
267 | { |
268 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; | |
269 | uinfo->count = 1; | |
270 | return 0; | |
271 | } | |
272 | ||
97f02e05 TI |
273 | static int snd_ak4117_spdif_mask_get(struct snd_kcontrol *kcontrol, |
274 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 LT |
275 | { |
276 | memset(ucontrol->value.iec958.status, 0xff, AK4117_REG_RXCSB_SIZE); | |
277 | return 0; | |
278 | } | |
279 | ||
97f02e05 | 280 | static int snd_ak4117_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
281 | { |
282 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
283 | uinfo->value.integer.min = 0; | |
284 | uinfo->value.integer.max = 0xffff; | |
285 | uinfo->count = 4; | |
286 | return 0; | |
287 | } | |
288 | ||
97f02e05 TI |
289 | static int snd_ak4117_spdif_pget(struct snd_kcontrol *kcontrol, |
290 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 291 | { |
97f02e05 | 292 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
293 | unsigned short tmp; |
294 | ||
295 | ucontrol->value.integer.value[0] = 0xf8f2; | |
296 | ucontrol->value.integer.value[1] = 0x4e1f; | |
297 | tmp = reg_read(chip, AK4117_REG_Pc0) | (reg_read(chip, AK4117_REG_Pc1) << 8); | |
298 | ucontrol->value.integer.value[2] = tmp; | |
299 | tmp = reg_read(chip, AK4117_REG_Pd0) | (reg_read(chip, AK4117_REG_Pd1) << 8); | |
300 | ucontrol->value.integer.value[3] = tmp; | |
301 | return 0; | |
302 | } | |
303 | ||
97f02e05 | 304 | static int snd_ak4117_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
305 | { |
306 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
307 | uinfo->count = AK4117_REG_QSUB_SIZE; | |
308 | return 0; | |
309 | } | |
310 | ||
97f02e05 TI |
311 | static int snd_ak4117_spdif_qget(struct snd_kcontrol *kcontrol, |
312 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 313 | { |
97f02e05 | 314 | struct ak4117 *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
315 | unsigned i; |
316 | ||
317 | for (i = 0; i < AK4117_REG_QSUB_SIZE; i++) | |
318 | ucontrol->value.bytes.data[i] = reg_read(chip, AK4117_REG_QSUB_ADDR + i); | |
319 | return 0; | |
320 | } | |
321 | ||
322 | /* Don't forget to change AK4117_CONTROLS define!!! */ | |
97f02e05 | 323 | static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { |
1da177e4 LT |
324 | { |
325 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
326 | .name = "IEC958 Parity Errors", | |
327 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
328 | .info = snd_ak4117_in_error_info, | |
329 | .get = snd_ak4117_in_error_get, | |
239480ab | 330 | .private_value = AK4117_PARITY_ERRORS, |
1da177e4 LT |
331 | }, |
332 | { | |
333 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
334 | .name = "IEC958 V-Bit Errors", | |
335 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
336 | .info = snd_ak4117_in_error_info, | |
337 | .get = snd_ak4117_in_error_get, | |
239480ab | 338 | .private_value = AK4117_V_BIT_ERRORS, |
1da177e4 LT |
339 | }, |
340 | { | |
341 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
342 | .name = "IEC958 C-CRC Errors", | |
343 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
344 | .info = snd_ak4117_in_error_info, | |
345 | .get = snd_ak4117_in_error_get, | |
239480ab | 346 | .private_value = AK4117_CCRC_ERRORS, |
1da177e4 LT |
347 | }, |
348 | { | |
349 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
350 | .name = "IEC958 Q-CRC Errors", | |
351 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
352 | .info = snd_ak4117_in_error_info, | |
353 | .get = snd_ak4117_in_error_get, | |
239480ab | 354 | .private_value = AK4117_QCRC_ERRORS, |
1da177e4 LT |
355 | }, |
356 | { | |
357 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
358 | .name = "IEC958 External Rate", | |
359 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
360 | .info = snd_ak4117_rate_info, | |
361 | .get = snd_ak4117_rate_get, | |
362 | }, | |
363 | { | |
364 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
365 | .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK), | |
366 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
367 | .info = snd_ak4117_spdif_mask_info, | |
368 | .get = snd_ak4117_spdif_mask_get, | |
369 | }, | |
370 | { | |
371 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
372 | .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT), | |
373 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
374 | .info = snd_ak4117_spdif_info, | |
375 | .get = snd_ak4117_spdif_get, | |
376 | }, | |
377 | { | |
378 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
ec8f53fb | 379 | .name = "IEC958 Preamble Capture Default", |
1da177e4 LT |
380 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
381 | .info = snd_ak4117_spdif_pinfo, | |
382 | .get = snd_ak4117_spdif_pget, | |
383 | }, | |
384 | { | |
385 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
386 | .name = "IEC958 Q-subcode Capture Default", | |
387 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
388 | .info = snd_ak4117_spdif_qinfo, | |
389 | .get = snd_ak4117_spdif_qget, | |
390 | }, | |
391 | { | |
392 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
393 | .name = "IEC958 Audio", | |
394 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
395 | .info = snd_ak4117_in_bit_info, | |
396 | .get = snd_ak4117_in_bit_get, | |
397 | .private_value = (1<<31) | (3<<8) | AK4117_REG_RCS0, | |
398 | }, | |
399 | { | |
400 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
401 | .name = "IEC958 Non-PCM Bitstream", | |
402 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
403 | .info = snd_ak4117_in_bit_info, | |
404 | .get = snd_ak4117_in_bit_get, | |
405 | .private_value = (5<<8) | AK4117_REG_RCS1, | |
406 | }, | |
407 | { | |
408 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
409 | .name = "IEC958 DTS Bitstream", | |
410 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
411 | .info = snd_ak4117_in_bit_info, | |
412 | .get = snd_ak4117_in_bit_get, | |
413 | .private_value = (6<<8) | AK4117_REG_RCS1, | |
414 | }, | |
415 | { | |
416 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
417 | .name = "AK4117 Input Select", | |
418 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE, | |
419 | .info = snd_ak4117_rx_info, | |
420 | .get = snd_ak4117_rx_get, | |
421 | .put = snd_ak4117_rx_put, | |
422 | } | |
423 | }; | |
424 | ||
97f02e05 | 425 | int snd_ak4117_build(struct ak4117 *ak4117, struct snd_pcm_substream *cap_substream) |
1da177e4 | 426 | { |
97f02e05 | 427 | struct snd_kcontrol *kctl; |
1da177e4 LT |
428 | unsigned int idx; |
429 | int err; | |
430 | ||
5e246b85 TI |
431 | if (snd_BUG_ON(!cap_substream)) |
432 | return -EINVAL; | |
1da177e4 LT |
433 | ak4117->substream = cap_substream; |
434 | for (idx = 0; idx < AK4117_CONTROLS; idx++) { | |
435 | kctl = snd_ctl_new1(&snd_ak4117_iec958_controls[idx], ak4117); | |
436 | if (kctl == NULL) | |
437 | return -ENOMEM; | |
438 | kctl->id.device = cap_substream->pcm->device; | |
439 | kctl->id.subdevice = cap_substream->number; | |
440 | err = snd_ctl_add(ak4117->card, kctl); | |
441 | if (err < 0) | |
442 | return err; | |
443 | ak4117->kctls[idx] = kctl; | |
444 | } | |
445 | return 0; | |
446 | } | |
447 | ||
97f02e05 | 448 | int snd_ak4117_external_rate(struct ak4117 *ak4117) |
1da177e4 LT |
449 | { |
450 | unsigned char rcs1; | |
451 | ||
452 | rcs1 = reg_read(ak4117, AK4117_REG_RCS1); | |
453 | return external_rate(rcs1); | |
454 | } | |
455 | ||
97f02e05 | 456 | int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags) |
1da177e4 | 457 | { |
97f02e05 | 458 | struct snd_pcm_runtime *runtime = ak4117->substream ? ak4117->substream->runtime : NULL; |
1da177e4 LT |
459 | unsigned long _flags; |
460 | int res = 0; | |
461 | unsigned char rcs0, rcs1, rcs2; | |
462 | unsigned char c0, c1; | |
463 | ||
464 | rcs1 = reg_read(ak4117, AK4117_REG_RCS1); | |
465 | if (flags & AK4117_CHECK_NO_STAT) | |
466 | goto __rate; | |
467 | rcs0 = reg_read(ak4117, AK4117_REG_RCS0); | |
468 | rcs2 = reg_read(ak4117, AK4117_REG_RCS2); | |
99b359ba | 469 | // printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2); |
1da177e4 LT |
470 | spin_lock_irqsave(&ak4117->lock, _flags); |
471 | if (rcs0 & AK4117_PAR) | |
239480ab | 472 | ak4117->errors[AK4117_PARITY_ERRORS]++; |
1da177e4 | 473 | if (rcs0 & AK4117_V) |
239480ab | 474 | ak4117->errors[AK4117_V_BIT_ERRORS]++; |
1da177e4 | 475 | if (rcs2 & AK4117_CCRC) |
239480ab | 476 | ak4117->errors[AK4117_CCRC_ERRORS]++; |
1da177e4 | 477 | if (rcs2 & AK4117_QCRC) |
239480ab | 478 | ak4117->errors[AK4117_QCRC_ERRORS]++; |
1da177e4 LT |
479 | c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^ |
480 | (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)); | |
481 | c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^ | |
482 | (rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)); | |
483 | ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC); | |
484 | ak4117->rcs1 = rcs1; | |
485 | ak4117->rcs2 = rcs2; | |
486 | spin_unlock_irqrestore(&ak4117->lock, _flags); | |
487 | ||
488 | if (rcs0 & AK4117_PAR) | |
489 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id); | |
490 | if (rcs0 & AK4117_V) | |
491 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id); | |
492 | if (rcs2 & AK4117_CCRC) | |
493 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id); | |
494 | if (rcs2 & AK4117_QCRC) | |
495 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id); | |
496 | ||
497 | /* rate change */ | |
498 | if (c1 & 0x0f) | |
499 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id); | |
500 | ||
501 | if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT)) | |
502 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id); | |
503 | if (c0 & AK4117_QINT) | |
504 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id); | |
505 | ||
506 | if (c0 & AK4117_AUDION) | |
507 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id); | |
508 | if (c1 & AK4117_NPCM) | |
509 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id); | |
510 | if (c1 & AK4117_DTSCD) | |
511 | snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id); | |
512 | ||
513 | if (ak4117->change_callback && (c0 | c1) != 0) | |
514 | ak4117->change_callback(ak4117, c0, c1); | |
515 | ||
516 | __rate: | |
517 | /* compare rate */ | |
518 | res = external_rate(rcs1); | |
519 | if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) { | |
520 | snd_pcm_stream_lock_irqsave(ak4117->substream, _flags); | |
521 | if (snd_pcm_running(ak4117->substream)) { | |
99b359ba | 522 | // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res); |
1da177e4 LT |
523 | snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING); |
524 | wake_up(&runtime->sleep); | |
525 | res = 1; | |
526 | } | |
527 | snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags); | |
528 | } | |
529 | return res; | |
530 | } | |
531 | ||
532 | static void snd_ak4117_timer(unsigned long data) | |
533 | { | |
97f02e05 | 534 | struct ak4117 *chip = (struct ak4117 *)data; |
1da177e4 LT |
535 | |
536 | if (chip->init) | |
537 | return; | |
538 | snd_ak4117_check_rate_and_errors(chip, 0); | |
867a0e05 | 539 | mod_timer(&chip->timer, 1 + jiffies); |
1da177e4 LT |
540 | } |
541 | ||
542 | EXPORT_SYMBOL(snd_ak4117_create); | |
543 | EXPORT_SYMBOL(snd_ak4117_reg_write); | |
544 | EXPORT_SYMBOL(snd_ak4117_reinit); | |
545 | EXPORT_SYMBOL(snd_ak4117_build); | |
546 | EXPORT_SYMBOL(snd_ak4117_external_rate); | |
547 | EXPORT_SYMBOL(snd_ak4117_check_rate_and_errors); |