blob: f350835ade96cced97ae9815de8d71a09e3cf86b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Routines for control of the AK4117 via 4-wire serial interface
3 * IEC958 (S/PDIF) receiver by Asahi Kasei
Jaroslav Kyselac1017a42007-10-15 09:50:19 +02004 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <linux/slab.h>
24#include <linux/delay.h>
25#include <sound/core.h>
26#include <sound/control.h>
27#include <sound/pcm.h>
28#include <sound/ak4117.h>
29#include <sound/asoundef.h>
30
Jaroslav Kyselac1017a42007-10-15 09:50:19 +020031MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
Linus Torvalds1da177e2005-04-16 15:20:36 -070032MODULE_DESCRIPTION("AK4117 IEC958 (S/PDIF) receiver by Asahi Kasei");
33MODULE_LICENSE("GPL");
34
35#define AK4117_ADDR 0x00 /* fixed address */
36
37static void snd_ak4117_timer(unsigned long data);
38
Takashi Iwai97f02e02005-11-17 14:17:19 +010039static void reg_write(struct ak4117 *ak4117, unsigned char reg, unsigned char val)
Linus Torvalds1da177e2005-04-16 15:20:36 -070040{
41 ak4117->write(ak4117->private_data, reg, val);
42 if (reg < sizeof(ak4117->regmap))
43 ak4117->regmap[reg] = val;
44}
45
Takashi Iwai97f02e02005-11-17 14:17:19 +010046static inline unsigned char reg_read(struct ak4117 *ak4117, unsigned char reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070047{
48 return ak4117->read(ak4117->private_data, reg);
49}
50
51#if 0
Takashi Iwai97f02e02005-11-17 14:17:19 +010052static void reg_dump(struct ak4117 *ak4117)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053{
54 int i;
55
Takashi Iwai99b359b2005-10-20 18:26:44 +020056 printk(KERN_DEBUG "AK4117 REG DUMP:\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 for (i = 0; i < 0x1b; i++)
Takashi Iwai99b359b2005-10-20 18:26:44 +020058 printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4117, i), i < sizeof(ak4117->regmap) ? ak4117->regmap[i] : 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -070059}
60#endif
61
Takashi Iwai97f02e02005-11-17 14:17:19 +010062static void snd_ak4117_free(struct ak4117 *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -070063{
64 del_timer(&chip->timer);
65 kfree(chip);
66}
67
Takashi Iwai97f02e02005-11-17 14:17:19 +010068static int snd_ak4117_dev_free(struct snd_device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -070069{
Takashi Iwai97f02e02005-11-17 14:17:19 +010070 struct ak4117 *chip = device->device_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 snd_ak4117_free(chip);
72 return 0;
73}
74
Takashi Iwai97f02e02005-11-17 14:17:19 +010075int snd_ak4117_create(struct snd_card *card, ak4117_read_t *read, ak4117_write_t *write,
Takashi Iwai517400c2007-01-29 15:27:56 +010076 const unsigned char pgm[5], void *private_data, struct ak4117 **r_ak4117)
Linus Torvalds1da177e2005-04-16 15:20:36 -070077{
Takashi Iwai97f02e02005-11-17 14:17:19 +010078 struct ak4117 *chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 int err = 0;
80 unsigned char reg;
Takashi Iwai97f02e02005-11-17 14:17:19 +010081 static struct snd_device_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 .dev_free = snd_ak4117_dev_free,
83 };
84
Takashi Iwai561b2202005-09-09 14:22:34 +020085 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 if (chip == NULL)
87 return -ENOMEM;
88 spin_lock_init(&chip->lock);
89 chip->card = card;
90 chip->read = read;
91 chip->write = write;
92 chip->private_data = private_data;
93 init_timer(&chip->timer);
94 chip->timer.data = (unsigned long)chip;
95 chip->timer.function = snd_ak4117_timer;
96
97 for (reg = 0; reg < 5; reg++)
98 chip->regmap[reg] = pgm[reg];
99 snd_ak4117_reinit(chip);
100
101 chip->rcs0 = reg_read(chip, AK4117_REG_RCS0) & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
102 chip->rcs1 = reg_read(chip, AK4117_REG_RCS1);
103 chip->rcs2 = reg_read(chip, AK4117_REG_RCS2);
104
105 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops)) < 0)
106 goto __fail;
107
108 if (r_ak4117)
109 *r_ak4117 = chip;
110 return 0;
111
112 __fail:
113 snd_ak4117_free(chip);
114 return err < 0 ? err : -EIO;
115}
116
Takashi Iwai97f02e02005-11-17 14:17:19 +0100117void snd_ak4117_reg_write(struct ak4117 *chip, unsigned char reg, unsigned char mask, unsigned char val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118{
119 if (reg >= 5)
120 return;
121 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
122}
123
Takashi Iwai97f02e02005-11-17 14:17:19 +0100124void snd_ak4117_reinit(struct ak4117 *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125{
126 unsigned char old = chip->regmap[AK4117_REG_PWRDN], reg;
127
128 del_timer(&chip->timer);
129 chip->init = 1;
130 /* bring the chip to reset state and powerdown state */
131 reg_write(chip, AK4117_REG_PWRDN, 0);
132 udelay(200);
133 /* release reset, but leave powerdown */
134 reg_write(chip, AK4117_REG_PWRDN, (old | AK4117_RST) & ~AK4117_PWN);
135 udelay(200);
136 for (reg = 1; reg < 5; reg++)
137 reg_write(chip, reg, chip->regmap[reg]);
138 /* release powerdown, everything is initialized now */
139 reg_write(chip, AK4117_REG_PWRDN, old | AK4117_RST | AK4117_PWN);
140 chip->init = 0;
141 chip->timer.expires = 1 + jiffies;
142 add_timer(&chip->timer);
143}
144
145static unsigned int external_rate(unsigned char rcs1)
146{
147 switch (rcs1 & (AK4117_FS0|AK4117_FS1|AK4117_FS2|AK4117_FS3)) {
148 case AK4117_FS_32000HZ: return 32000;
149 case AK4117_FS_44100HZ: return 44100;
150 case AK4117_FS_48000HZ: return 48000;
151 case AK4117_FS_88200HZ: return 88200;
152 case AK4117_FS_96000HZ: return 96000;
153 case AK4117_FS_176400HZ: return 176400;
154 case AK4117_FS_192000HZ: return 192000;
155 default: return 0;
156 }
157}
158
Takashi Iwai97f02e02005-11-17 14:17:19 +0100159static int snd_ak4117_in_error_info(struct snd_kcontrol *kcontrol,
160 struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
163 uinfo->count = 1;
164 uinfo->value.integer.min = 0;
165 uinfo->value.integer.max = LONG_MAX;
166 return 0;
167}
168
Takashi Iwai97f02e02005-11-17 14:17:19 +0100169static int snd_ak4117_in_error_get(struct snd_kcontrol *kcontrol,
170 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100172 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 long *ptr;
174
175 spin_lock_irq(&chip->lock);
176 ptr = (long *)(((char *)chip) + kcontrol->private_value);
177 ucontrol->value.integer.value[0] = *ptr;
178 *ptr = 0;
179 spin_unlock_irq(&chip->lock);
180 return 0;
181}
182
Takashi Iwaia5ce8892007-07-23 15:42:26 +0200183#define snd_ak4117_in_bit_info snd_ctl_boolean_mono_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184
Takashi Iwai97f02e02005-11-17 14:17:19 +0100185static int snd_ak4117_in_bit_get(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100188 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 unsigned char reg = kcontrol->private_value & 0xff;
190 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
191 unsigned char inv = (kcontrol->private_value >> 31) & 1;
192
193 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
194 return 0;
195}
196
Takashi Iwai97f02e02005-11-17 14:17:19 +0100197static int snd_ak4117_rx_info(struct snd_kcontrol *kcontrol,
198 struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199{
200 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
201 uinfo->count = 1;
202 uinfo->value.integer.min = 0;
203 uinfo->value.integer.max = 1;
204 return 0;
205}
206
Takashi Iwai97f02e02005-11-17 14:17:19 +0100207static int snd_ak4117_rx_get(struct snd_kcontrol *kcontrol,
208 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100210 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211
212 ucontrol->value.integer.value[0] = (chip->regmap[AK4117_REG_IO] & AK4117_IPS) ? 1 : 0;
213 return 0;
214}
215
Takashi Iwai97f02e02005-11-17 14:17:19 +0100216static int snd_ak4117_rx_put(struct snd_kcontrol *kcontrol,
217 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100219 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 int change;
221 u8 old_val;
222
223 spin_lock_irq(&chip->lock);
224 old_val = chip->regmap[AK4117_REG_IO];
225 change = !!ucontrol->value.integer.value[0] != ((old_val & AK4117_IPS) ? 1 : 0);
226 if (change)
227 reg_write(chip, AK4117_REG_IO, (old_val & ~AK4117_IPS) | (ucontrol->value.integer.value[0] ? AK4117_IPS : 0));
228 spin_unlock_irq(&chip->lock);
229 return change;
230}
231
Takashi Iwai97f02e02005-11-17 14:17:19 +0100232static int snd_ak4117_rate_info(struct snd_kcontrol *kcontrol,
233 struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234{
235 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
236 uinfo->count = 1;
237 uinfo->value.integer.min = 0;
238 uinfo->value.integer.max = 192000;
239 return 0;
240}
241
Takashi Iwai97f02e02005-11-17 14:17:19 +0100242static int snd_ak4117_rate_get(struct snd_kcontrol *kcontrol,
243 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100245 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
247 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4117_REG_RCS1));
248 return 0;
249}
250
Takashi Iwai97f02e02005-11-17 14:17:19 +0100251static int snd_ak4117_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252{
253 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
254 uinfo->count = 1;
255 return 0;
256}
257
Takashi Iwai97f02e02005-11-17 14:17:19 +0100258static int snd_ak4117_spdif_get(struct snd_kcontrol *kcontrol,
259 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100261 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 unsigned i;
263
264 for (i = 0; i < AK4117_REG_RXCSB_SIZE; i++)
265 ucontrol->value.iec958.status[i] = reg_read(chip, AK4117_REG_RXCSB0 + i);
266 return 0;
267}
268
Takashi Iwai97f02e02005-11-17 14:17:19 +0100269static int snd_ak4117_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270{
271 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
272 uinfo->count = 1;
273 return 0;
274}
275
Takashi Iwai97f02e02005-11-17 14:17:19 +0100276static int snd_ak4117_spdif_mask_get(struct snd_kcontrol *kcontrol,
277 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278{
279 memset(ucontrol->value.iec958.status, 0xff, AK4117_REG_RXCSB_SIZE);
280 return 0;
281}
282
Takashi Iwai97f02e02005-11-17 14:17:19 +0100283static int snd_ak4117_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284{
285 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
286 uinfo->value.integer.min = 0;
287 uinfo->value.integer.max = 0xffff;
288 uinfo->count = 4;
289 return 0;
290}
291
Takashi Iwai97f02e02005-11-17 14:17:19 +0100292static int snd_ak4117_spdif_pget(struct snd_kcontrol *kcontrol,
293 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100295 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 unsigned short tmp;
297
298 ucontrol->value.integer.value[0] = 0xf8f2;
299 ucontrol->value.integer.value[1] = 0x4e1f;
300 tmp = reg_read(chip, AK4117_REG_Pc0) | (reg_read(chip, AK4117_REG_Pc1) << 8);
301 ucontrol->value.integer.value[2] = tmp;
302 tmp = reg_read(chip, AK4117_REG_Pd0) | (reg_read(chip, AK4117_REG_Pd1) << 8);
303 ucontrol->value.integer.value[3] = tmp;
304 return 0;
305}
306
Takashi Iwai97f02e02005-11-17 14:17:19 +0100307static int snd_ak4117_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308{
309 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
310 uinfo->count = AK4117_REG_QSUB_SIZE;
311 return 0;
312}
313
Takashi Iwai97f02e02005-11-17 14:17:19 +0100314static int snd_ak4117_spdif_qget(struct snd_kcontrol *kcontrol,
315 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100317 struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 unsigned i;
319
320 for (i = 0; i < AK4117_REG_QSUB_SIZE; i++)
321 ucontrol->value.bytes.data[i] = reg_read(chip, AK4117_REG_QSUB_ADDR + i);
322 return 0;
323}
324
325/* Don't forget to change AK4117_CONTROLS define!!! */
Takashi Iwai97f02e02005-11-17 14:17:19 +0100326static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327{
328 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
329 .name = "IEC958 Parity Errors",
330 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
331 .info = snd_ak4117_in_error_info,
332 .get = snd_ak4117_in_error_get,
Takashi Iwai97f02e02005-11-17 14:17:19 +0100333 .private_value = offsetof(struct ak4117, parity_errors),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334},
335{
336 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
337 .name = "IEC958 V-Bit Errors",
338 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
339 .info = snd_ak4117_in_error_info,
340 .get = snd_ak4117_in_error_get,
Takashi Iwai97f02e02005-11-17 14:17:19 +0100341 .private_value = offsetof(struct ak4117, v_bit_errors),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342},
343{
344 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
345 .name = "IEC958 C-CRC Errors",
346 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
347 .info = snd_ak4117_in_error_info,
348 .get = snd_ak4117_in_error_get,
Takashi Iwai97f02e02005-11-17 14:17:19 +0100349 .private_value = offsetof(struct ak4117, ccrc_errors),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350},
351{
352 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
353 .name = "IEC958 Q-CRC Errors",
354 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
355 .info = snd_ak4117_in_error_info,
356 .get = snd_ak4117_in_error_get,
Takashi Iwai97f02e02005-11-17 14:17:19 +0100357 .private_value = offsetof(struct ak4117, qcrc_errors),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358},
359{
360 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
361 .name = "IEC958 External Rate",
362 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
363 .info = snd_ak4117_rate_info,
364 .get = snd_ak4117_rate_get,
365},
366{
367 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
368 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
369 .access = SNDRV_CTL_ELEM_ACCESS_READ,
370 .info = snd_ak4117_spdif_mask_info,
371 .get = snd_ak4117_spdif_mask_get,
372},
373{
374 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
375 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
376 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
377 .info = snd_ak4117_spdif_info,
378 .get = snd_ak4117_spdif_get,
379},
380{
381 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
382 .name = "IEC958 Preample Capture Default",
383 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
384 .info = snd_ak4117_spdif_pinfo,
385 .get = snd_ak4117_spdif_pget,
386},
387{
388 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
389 .name = "IEC958 Q-subcode Capture Default",
390 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
391 .info = snd_ak4117_spdif_qinfo,
392 .get = snd_ak4117_spdif_qget,
393},
394{
395 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
396 .name = "IEC958 Audio",
397 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
398 .info = snd_ak4117_in_bit_info,
399 .get = snd_ak4117_in_bit_get,
400 .private_value = (1<<31) | (3<<8) | AK4117_REG_RCS0,
401},
402{
403 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
404 .name = "IEC958 Non-PCM Bitstream",
405 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
406 .info = snd_ak4117_in_bit_info,
407 .get = snd_ak4117_in_bit_get,
408 .private_value = (5<<8) | AK4117_REG_RCS1,
409},
410{
411 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
412 .name = "IEC958 DTS Bitstream",
413 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
414 .info = snd_ak4117_in_bit_info,
415 .get = snd_ak4117_in_bit_get,
416 .private_value = (6<<8) | AK4117_REG_RCS1,
417},
418{
419 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
420 .name = "AK4117 Input Select",
421 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
422 .info = snd_ak4117_rx_info,
423 .get = snd_ak4117_rx_get,
424 .put = snd_ak4117_rx_put,
425}
426};
427
Takashi Iwai97f02e02005-11-17 14:17:19 +0100428int snd_ak4117_build(struct ak4117 *ak4117, struct snd_pcm_substream *cap_substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100430 struct snd_kcontrol *kctl;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 unsigned int idx;
432 int err;
433
434 snd_assert(cap_substream, return -EINVAL);
435 ak4117->substream = cap_substream;
436 for (idx = 0; idx < AK4117_CONTROLS; idx++) {
437 kctl = snd_ctl_new1(&snd_ak4117_iec958_controls[idx], ak4117);
438 if (kctl == NULL)
439 return -ENOMEM;
440 kctl->id.device = cap_substream->pcm->device;
441 kctl->id.subdevice = cap_substream->number;
442 err = snd_ctl_add(ak4117->card, kctl);
443 if (err < 0)
444 return err;
445 ak4117->kctls[idx] = kctl;
446 }
447 return 0;
448}
449
Takashi Iwai97f02e02005-11-17 14:17:19 +0100450int snd_ak4117_external_rate(struct ak4117 *ak4117)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451{
452 unsigned char rcs1;
453
454 rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
455 return external_rate(rcs1);
456}
457
Takashi Iwai97f02e02005-11-17 14:17:19 +0100458int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100460 struct snd_pcm_runtime *runtime = ak4117->substream ? ak4117->substream->runtime : NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 unsigned long _flags;
462 int res = 0;
463 unsigned char rcs0, rcs1, rcs2;
464 unsigned char c0, c1;
465
466 rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
467 if (flags & AK4117_CHECK_NO_STAT)
468 goto __rate;
469 rcs0 = reg_read(ak4117, AK4117_REG_RCS0);
470 rcs2 = reg_read(ak4117, AK4117_REG_RCS2);
Takashi Iwai99b359b2005-10-20 18:26:44 +0200471 // printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 spin_lock_irqsave(&ak4117->lock, _flags);
473 if (rcs0 & AK4117_PAR)
474 ak4117->parity_errors++;
475 if (rcs0 & AK4117_V)
476 ak4117->v_bit_errors++;
477 if (rcs2 & AK4117_CCRC)
478 ak4117->ccrc_errors++;
479 if (rcs2 & AK4117_QCRC)
480 ak4117->qcrc_errors++;
481 c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^
482 (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK));
483 c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^
484 (rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f));
485 ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
486 ak4117->rcs1 = rcs1;
487 ak4117->rcs2 = rcs2;
488 spin_unlock_irqrestore(&ak4117->lock, _flags);
489
490 if (rcs0 & AK4117_PAR)
491 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id);
492 if (rcs0 & AK4117_V)
493 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id);
494 if (rcs2 & AK4117_CCRC)
495 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id);
496 if (rcs2 & AK4117_QCRC)
497 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id);
498
499 /* rate change */
500 if (c1 & 0x0f)
501 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id);
502
503 if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT))
504 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id);
505 if (c0 & AK4117_QINT)
506 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id);
507
508 if (c0 & AK4117_AUDION)
509 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id);
510 if (c1 & AK4117_NPCM)
511 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id);
512 if (c1 & AK4117_DTSCD)
513 snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id);
514
515 if (ak4117->change_callback && (c0 | c1) != 0)
516 ak4117->change_callback(ak4117, c0, c1);
517
518 __rate:
519 /* compare rate */
520 res = external_rate(rcs1);
521 if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) {
522 snd_pcm_stream_lock_irqsave(ak4117->substream, _flags);
523 if (snd_pcm_running(ak4117->substream)) {
Takashi Iwai99b359b2005-10-20 18:26:44 +0200524 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING);
526 wake_up(&runtime->sleep);
527 res = 1;
528 }
529 snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags);
530 }
531 return res;
532}
533
534static void snd_ak4117_timer(unsigned long data)
535{
Takashi Iwai97f02e02005-11-17 14:17:19 +0100536 struct ak4117 *chip = (struct ak4117 *)data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
538 if (chip->init)
539 return;
540 snd_ak4117_check_rate_and_errors(chip, 0);
541 chip->timer.expires = 1 + jiffies;
542 add_timer(&chip->timer);
543}
544
545EXPORT_SYMBOL(snd_ak4117_create);
546EXPORT_SYMBOL(snd_ak4117_reg_write);
547EXPORT_SYMBOL(snd_ak4117_reinit);
548EXPORT_SYMBOL(snd_ak4117_build);
549EXPORT_SYMBOL(snd_ak4117_external_rate);
550EXPORT_SYMBOL(snd_ak4117_check_rate_and_errors);