1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
4 | * Routines for control of ESS ES1688/688/488 chip |
5 | */ |
6 | |
7 | #include <linux/init.h> |
8 | #include <linux/interrupt.h> |
9 | #include <linux/delay.h> |
10 | #include <linux/slab.h> |
11 | #include <linux/ioport.h> |
12 | #include <linux/module.h> |
13 | #include <linux/io.h> |
14 | #include <sound/core.h> |
15 | #include <sound/es1688.h> |
16 | #include <sound/initval.h> |
17 | |
18 | #include <asm/dma.h> |
19 | |
20 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>" ); |
21 | MODULE_DESCRIPTION("ESS ESx688 lowlevel module" ); |
22 | MODULE_LICENSE("GPL" ); |
23 | |
24 | static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val) |
25 | { |
26 | int i; |
27 | |
28 | for (i = 10000; i; i--) |
29 | if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) { |
30 | outb(value: val, ES1688P(chip, COMMAND)); |
31 | return 1; |
32 | } |
33 | #ifdef CONFIG_SND_DEBUG |
34 | printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n" , val); |
35 | #endif |
36 | return 0; |
37 | } |
38 | |
39 | static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip) |
40 | { |
41 | int i; |
42 | |
43 | for (i = 1000; i; i--) |
44 | if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) |
45 | return inb(ES1688P(chip, READ)); |
46 | snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n" , ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL))); |
47 | return -ENODEV; |
48 | } |
49 | |
50 | static int snd_es1688_write(struct snd_es1688 *chip, |
51 | unsigned char reg, unsigned char data) |
52 | { |
53 | if (!snd_es1688_dsp_command(chip, val: reg)) |
54 | return 0; |
55 | return snd_es1688_dsp_command(chip, val: data); |
56 | } |
57 | |
58 | static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg) |
59 | { |
60 | /* Read a byte from an extended mode register of ES1688 */ |
61 | if (!snd_es1688_dsp_command(chip, val: 0xc0)) |
62 | return -1; |
63 | if (!snd_es1688_dsp_command(chip, val: reg)) |
64 | return -1; |
65 | return snd_es1688_dsp_get_byte(chip); |
66 | } |
67 | |
68 | void snd_es1688_mixer_write(struct snd_es1688 *chip, |
69 | unsigned char reg, unsigned char data) |
70 | { |
71 | outb(value: reg, ES1688P(chip, MIXER_ADDR)); |
72 | udelay(10); |
73 | outb(value: data, ES1688P(chip, MIXER_DATA)); |
74 | udelay(10); |
75 | } |
76 | |
77 | static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg) |
78 | { |
79 | unsigned char result; |
80 | |
81 | outb(value: reg, ES1688P(chip, MIXER_ADDR)); |
82 | udelay(10); |
83 | result = inb(ES1688P(chip, MIXER_DATA)); |
84 | udelay(10); |
85 | return result; |
86 | } |
87 | |
88 | int snd_es1688_reset(struct snd_es1688 *chip) |
89 | { |
90 | int i; |
91 | |
92 | outb(value: 3, ES1688P(chip, RESET)); /* valid only for ESS chips, SB -> 1 */ |
93 | udelay(10); |
94 | outb(value: 0, ES1688P(chip, RESET)); |
95 | udelay(30); |
96 | for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++); |
97 | if (inb(ES1688P(chip, READ)) != 0xaa) { |
98 | snd_printd("ess_reset at 0x%lx: failed!!!\n" , chip->port); |
99 | return -ENODEV; |
100 | } |
101 | snd_es1688_dsp_command(chip, val: 0xc6); /* enable extended mode */ |
102 | return 0; |
103 | } |
104 | EXPORT_SYMBOL(snd_es1688_reset); |
105 | |
106 | static int snd_es1688_probe(struct snd_es1688 *chip) |
107 | { |
108 | unsigned long flags; |
109 | unsigned short major, minor; |
110 | int i; |
111 | |
112 | /* |
113 | * initialization sequence |
114 | */ |
115 | |
116 | spin_lock_irqsave(&chip->reg_lock, flags); /* Some ESS1688 cards need this */ |
117 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
118 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
119 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
120 | inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */ |
121 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
122 | inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */ |
123 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
124 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
125 | inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */ |
126 | inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */ |
127 | inb(ES1688P(chip, ENABLE0)); /* ENABLE0 */ |
128 | |
129 | if (snd_es1688_reset(chip) < 0) { |
130 | snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n" , chip->port, inb(ES1688P(chip, READ))); |
131 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
132 | return -ENODEV; |
133 | } |
134 | snd_es1688_dsp_command(chip, val: 0xe7); /* return identification */ |
135 | |
136 | for (i = 1000, major = minor = 0; i; i--) { |
137 | if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) { |
138 | if (major == 0) { |
139 | major = inb(ES1688P(chip, READ)); |
140 | } else { |
141 | minor = inb(ES1688P(chip, READ)); |
142 | } |
143 | } |
144 | } |
145 | |
146 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
147 | |
148 | snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n" , chip->port, major, minor); |
149 | |
150 | chip->version = (major << 8) | minor; |
151 | if (!chip->version) |
152 | return -ENODEV; /* probably SB */ |
153 | |
154 | switch (chip->version & 0xfff0) { |
155 | case 0x4880: |
156 | snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, " |
157 | "but driver is in another place\n" , chip->port); |
158 | return -ENODEV; |
159 | case 0x6880: |
160 | break; |
161 | default: |
162 | snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip " |
163 | "with version 0x%x (Jazz16 soundcard?)\n" , |
164 | chip->port, chip->version); |
165 | return -ENODEV; |
166 | } |
167 | |
168 | spin_lock_irqsave(&chip->reg_lock, flags); |
169 | snd_es1688_write(chip, reg: 0xb1, data: 0x10); /* disable IRQ */ |
170 | snd_es1688_write(chip, reg: 0xb2, data: 0x00); /* disable DMA */ |
171 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
172 | |
173 | /* enable joystick, but disable OPL3 */ |
174 | spin_lock_irqsave(&chip->mixer_lock, flags); |
175 | snd_es1688_mixer_write(chip, reg: 0x40, data: 0x01); |
176 | spin_unlock_irqrestore(lock: &chip->mixer_lock, flags); |
177 | |
178 | return 0; |
179 | } |
180 | |
181 | static int snd_es1688_init(struct snd_es1688 * chip, int enable) |
182 | { |
183 | static const int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1}; |
184 | unsigned long flags; |
185 | int cfg, irq_bits, dma, dma_bits, tmp, tmp1; |
186 | |
187 | /* ok.. setup MPU-401 port and joystick and OPL3 */ |
188 | cfg = 0x01; /* enable joystick, but disable OPL3 */ |
189 | if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) { |
190 | tmp = (chip->mpu_port & 0x0f0) >> 4; |
191 | if (tmp <= 3) { |
192 | switch (chip->mpu_irq) { |
193 | case 9: |
194 | tmp1 = 4; |
195 | break; |
196 | case 5: |
197 | tmp1 = 5; |
198 | break; |
199 | case 7: |
200 | tmp1 = 6; |
201 | break; |
202 | case 10: |
203 | tmp1 = 7; |
204 | break; |
205 | default: |
206 | tmp1 = 0; |
207 | } |
208 | if (tmp1) { |
209 | cfg |= (tmp << 3) | (tmp1 << 5); |
210 | } |
211 | } |
212 | } |
213 | #if 0 |
214 | snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n" , cfg); |
215 | #endif |
216 | spin_lock_irqsave(&chip->reg_lock, flags); |
217 | snd_es1688_mixer_write(chip, reg: 0x40, data: cfg); |
218 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
219 | /* --- */ |
220 | spin_lock_irqsave(&chip->reg_lock, flags); |
221 | snd_es1688_read(chip, reg: 0xb1); |
222 | snd_es1688_read(chip, reg: 0xb2); |
223 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
224 | if (enable) { |
225 | cfg = 0xf0; /* enable only DMA counter interrupt */ |
226 | irq_bits = irqs[chip->irq & 0x0f]; |
227 | if (irq_bits < 0) { |
228 | snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d " |
229 | "for ES1688 chip!!\n" , |
230 | chip->port, chip->irq); |
231 | #if 0 |
232 | irq_bits = 0; |
233 | cfg = 0x10; |
234 | #endif |
235 | return -EINVAL; |
236 | } |
237 | spin_lock_irqsave(&chip->reg_lock, flags); |
238 | snd_es1688_write(chip, reg: 0xb1, data: cfg | (irq_bits << 2)); |
239 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
240 | cfg = 0xf0; /* extended mode DMA enable */ |
241 | dma = chip->dma8; |
242 | if (dma > 3 || dma == 2) { |
243 | snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d " |
244 | "for ES1688 chip!!\n" , chip->port, dma); |
245 | #if 0 |
246 | dma_bits = 0; |
247 | cfg = 0x00; /* disable all DMA */ |
248 | #endif |
249 | return -EINVAL; |
250 | } else { |
251 | dma_bits = dma; |
252 | if (dma != 3) |
253 | dma_bits++; |
254 | } |
255 | spin_lock_irqsave(&chip->reg_lock, flags); |
256 | snd_es1688_write(chip, reg: 0xb2, data: cfg | (dma_bits << 2)); |
257 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
258 | } else { |
259 | spin_lock_irqsave(&chip->reg_lock, flags); |
260 | snd_es1688_write(chip, reg: 0xb1, data: 0x10); /* disable IRQ */ |
261 | snd_es1688_write(chip, reg: 0xb2, data: 0x00); /* disable DMA */ |
262 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
263 | } |
264 | spin_lock_irqsave(&chip->reg_lock, flags); |
265 | snd_es1688_read(chip, reg: 0xb1); |
266 | snd_es1688_read(chip, reg: 0xb2); |
267 | snd_es1688_reset(chip); |
268 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
269 | return 0; |
270 | } |
271 | |
272 | /* |
273 | |
274 | */ |
275 | |
276 | static const struct snd_ratnum clocks[2] = { |
277 | { |
278 | .num = 795444, |
279 | .den_min = 1, |
280 | .den_max = 128, |
281 | .den_step = 1, |
282 | }, |
283 | { |
284 | .num = 397722, |
285 | .den_min = 1, |
286 | .den_max = 128, |
287 | .den_step = 1, |
288 | } |
289 | }; |
290 | |
291 | static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = { |
292 | .nrats = 2, |
293 | .rats = clocks, |
294 | }; |
295 | |
296 | static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream) |
297 | { |
298 | struct snd_pcm_runtime *runtime = substream->runtime; |
299 | unsigned int bits, divider; |
300 | |
301 | if (runtime->rate_num == clocks[0].num) |
302 | bits = 256 - runtime->rate_den; |
303 | else |
304 | bits = 128 - runtime->rate_den; |
305 | /* set filter register */ |
306 | divider = 256 - 7160000*20/(8*82*runtime->rate); |
307 | /* write result to hardware */ |
308 | snd_es1688_write(chip, reg: 0xa1, data: bits); |
309 | snd_es1688_write(chip, reg: 0xa2, data: divider); |
310 | } |
311 | |
312 | static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value) |
313 | { |
314 | int val; |
315 | |
316 | if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
317 | value = 0x00; |
318 | } else if (cmd != SNDRV_PCM_TRIGGER_START) { |
319 | return -EINVAL; |
320 | } |
321 | spin_lock(lock: &chip->reg_lock); |
322 | chip->trigger_value = value; |
323 | val = snd_es1688_read(chip, reg: 0xb8); |
324 | if ((val < 0) || (val & 0x0f) == value) { |
325 | spin_unlock(lock: &chip->reg_lock); |
326 | return -EINVAL; /* something is wrong */ |
327 | } |
328 | #if 0 |
329 | printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n" , val, value); |
330 | printk(KERN_DEBUG "trigger: pointer = 0x%x\n" , |
331 | snd_dma_pointer(chip->dma8, chip->dma_size)); |
332 | #endif |
333 | snd_es1688_write(chip, reg: 0xb8, data: (val & 0xf0) | value); |
334 | spin_unlock(lock: &chip->reg_lock); |
335 | return 0; |
336 | } |
337 | |
338 | static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream) |
339 | { |
340 | unsigned long flags; |
341 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
342 | struct snd_pcm_runtime *runtime = substream->runtime; |
343 | unsigned int size = snd_pcm_lib_buffer_bytes(substream); |
344 | unsigned int count = snd_pcm_lib_period_bytes(substream); |
345 | |
346 | chip->dma_size = size; |
347 | spin_lock_irqsave(&chip->reg_lock, flags); |
348 | snd_es1688_reset(chip); |
349 | snd_es1688_set_rate(chip, substream); |
350 | snd_es1688_write(chip, reg: 0xb8, data: 4); /* auto init DMA mode */ |
351 | snd_es1688_write(chip, reg: 0xa8, data: (snd_es1688_read(chip, reg: 0xa8) & ~0x03) | (3 - runtime->channels)); |
352 | snd_es1688_write(chip, reg: 0xb9, data: 2); /* demand mode (4 bytes/request) */ |
353 | if (runtime->channels == 1) { |
354 | if (snd_pcm_format_width(format: runtime->format) == 8) { |
355 | /* 8. bit mono */ |
356 | snd_es1688_write(chip, reg: 0xb6, data: 0x80); |
357 | snd_es1688_write(chip, reg: 0xb7, data: 0x51); |
358 | snd_es1688_write(chip, reg: 0xb7, data: 0xd0); |
359 | } else { |
360 | /* 16. bit mono */ |
361 | snd_es1688_write(chip, reg: 0xb6, data: 0x00); |
362 | snd_es1688_write(chip, reg: 0xb7, data: 0x71); |
363 | snd_es1688_write(chip, reg: 0xb7, data: 0xf4); |
364 | } |
365 | } else { |
366 | if (snd_pcm_format_width(format: runtime->format) == 8) { |
367 | /* 8. bit stereo */ |
368 | snd_es1688_write(chip, reg: 0xb6, data: 0x80); |
369 | snd_es1688_write(chip, reg: 0xb7, data: 0x51); |
370 | snd_es1688_write(chip, reg: 0xb7, data: 0x98); |
371 | } else { |
372 | /* 16. bit stereo */ |
373 | snd_es1688_write(chip, reg: 0xb6, data: 0x00); |
374 | snd_es1688_write(chip, reg: 0xb7, data: 0x71); |
375 | snd_es1688_write(chip, reg: 0xb7, data: 0xbc); |
376 | } |
377 | } |
378 | snd_es1688_write(chip, reg: 0xb1, data: (snd_es1688_read(chip, reg: 0xb1) & 0x0f) | 0x50); |
379 | snd_es1688_write(chip, reg: 0xb2, data: (snd_es1688_read(chip, reg: 0xb2) & 0x0f) | 0x50); |
380 | snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON); |
381 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
382 | /* --- */ |
383 | count = -count; |
384 | snd_dma_program(dma: chip->dma8, addr: runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT); |
385 | spin_lock_irqsave(&chip->reg_lock, flags); |
386 | snd_es1688_write(chip, reg: 0xa4, data: (unsigned char) count); |
387 | snd_es1688_write(chip, reg: 0xa5, data: (unsigned char) (count >> 8)); |
388 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
389 | return 0; |
390 | } |
391 | |
392 | static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream, |
393 | int cmd) |
394 | { |
395 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
396 | return snd_es1688_trigger(chip, cmd, value: 0x05); |
397 | } |
398 | |
399 | static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream) |
400 | { |
401 | unsigned long flags; |
402 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
403 | struct snd_pcm_runtime *runtime = substream->runtime; |
404 | unsigned int size = snd_pcm_lib_buffer_bytes(substream); |
405 | unsigned int count = snd_pcm_lib_period_bytes(substream); |
406 | |
407 | chip->dma_size = size; |
408 | spin_lock_irqsave(&chip->reg_lock, flags); |
409 | snd_es1688_reset(chip); |
410 | snd_es1688_set_rate(chip, substream); |
411 | snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF); |
412 | snd_es1688_write(chip, reg: 0xb8, data: 0x0e); /* auto init DMA mode */ |
413 | snd_es1688_write(chip, reg: 0xa8, data: (snd_es1688_read(chip, reg: 0xa8) & ~0x03) | (3 - runtime->channels)); |
414 | snd_es1688_write(chip, reg: 0xb9, data: 2); /* demand mode (4 bytes/request) */ |
415 | if (runtime->channels == 1) { |
416 | if (snd_pcm_format_width(format: runtime->format) == 8) { |
417 | /* 8. bit mono */ |
418 | snd_es1688_write(chip, reg: 0xb7, data: 0x51); |
419 | snd_es1688_write(chip, reg: 0xb7, data: 0xd0); |
420 | } else { |
421 | /* 16. bit mono */ |
422 | snd_es1688_write(chip, reg: 0xb7, data: 0x71); |
423 | snd_es1688_write(chip, reg: 0xb7, data: 0xf4); |
424 | } |
425 | } else { |
426 | if (snd_pcm_format_width(format: runtime->format) == 8) { |
427 | /* 8. bit stereo */ |
428 | snd_es1688_write(chip, reg: 0xb7, data: 0x51); |
429 | snd_es1688_write(chip, reg: 0xb7, data: 0x98); |
430 | } else { |
431 | /* 16. bit stereo */ |
432 | snd_es1688_write(chip, reg: 0xb7, data: 0x71); |
433 | snd_es1688_write(chip, reg: 0xb7, data: 0xbc); |
434 | } |
435 | } |
436 | snd_es1688_write(chip, reg: 0xb1, data: (snd_es1688_read(chip, reg: 0xb1) & 0x0f) | 0x50); |
437 | snd_es1688_write(chip, reg: 0xb2, data: (snd_es1688_read(chip, reg: 0xb2) & 0x0f) | 0x50); |
438 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
439 | /* --- */ |
440 | count = -count; |
441 | snd_dma_program(dma: chip->dma8, addr: runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT); |
442 | spin_lock_irqsave(&chip->reg_lock, flags); |
443 | snd_es1688_write(chip, reg: 0xa4, data: (unsigned char) count); |
444 | snd_es1688_write(chip, reg: 0xa5, data: (unsigned char) (count >> 8)); |
445 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
446 | return 0; |
447 | } |
448 | |
449 | static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream, |
450 | int cmd) |
451 | { |
452 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
453 | return snd_es1688_trigger(chip, cmd, value: 0x0f); |
454 | } |
455 | |
456 | static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id) |
457 | { |
458 | struct snd_es1688 *chip = dev_id; |
459 | |
460 | if (chip->trigger_value == 0x05) /* ok.. playback is active */ |
461 | snd_pcm_period_elapsed(substream: chip->playback_substream); |
462 | if (chip->trigger_value == 0x0f) /* ok.. capture is active */ |
463 | snd_pcm_period_elapsed(substream: chip->capture_substream); |
464 | |
465 | inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */ |
466 | return IRQ_HANDLED; |
467 | } |
468 | |
469 | static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream) |
470 | { |
471 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
472 | size_t ptr; |
473 | |
474 | if (chip->trigger_value != 0x05) |
475 | return 0; |
476 | ptr = snd_dma_pointer(dma: chip->dma8, size: chip->dma_size); |
477 | return bytes_to_frames(runtime: substream->runtime, size: ptr); |
478 | } |
479 | |
480 | static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream) |
481 | { |
482 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
483 | size_t ptr; |
484 | |
485 | if (chip->trigger_value != 0x0f) |
486 | return 0; |
487 | ptr = snd_dma_pointer(dma: chip->dma8, size: chip->dma_size); |
488 | return bytes_to_frames(runtime: substream->runtime, size: ptr); |
489 | } |
490 | |
491 | /* |
492 | |
493 | */ |
494 | |
495 | static const struct snd_pcm_hardware snd_es1688_playback = |
496 | { |
497 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
498 | SNDRV_PCM_INFO_MMAP_VALID), |
499 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
500 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
501 | .rate_min = 4000, |
502 | .rate_max = 48000, |
503 | .channels_min = 1, |
504 | .channels_max = 2, |
505 | .buffer_bytes_max = 65536, |
506 | .period_bytes_min = 64, |
507 | .period_bytes_max = 65536, |
508 | .periods_min = 1, |
509 | .periods_max = 1024, |
510 | .fifo_size = 0, |
511 | }; |
512 | |
513 | static const struct snd_pcm_hardware snd_es1688_capture = |
514 | { |
515 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
516 | SNDRV_PCM_INFO_MMAP_VALID), |
517 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
518 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
519 | .rate_min = 4000, |
520 | .rate_max = 48000, |
521 | .channels_min = 1, |
522 | .channels_max = 2, |
523 | .buffer_bytes_max = 65536, |
524 | .period_bytes_min = 64, |
525 | .period_bytes_max = 65536, |
526 | .periods_min = 1, |
527 | .periods_max = 1024, |
528 | .fifo_size = 0, |
529 | }; |
530 | |
531 | /* |
532 | |
533 | */ |
534 | |
535 | static int snd_es1688_playback_open(struct snd_pcm_substream *substream) |
536 | { |
537 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
538 | struct snd_pcm_runtime *runtime = substream->runtime; |
539 | |
540 | if (chip->capture_substream != NULL) |
541 | return -EAGAIN; |
542 | chip->playback_substream = substream; |
543 | runtime->hw = snd_es1688_playback; |
544 | snd_pcm_hw_constraint_ratnums(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
545 | r: &hw_constraints_clocks); |
546 | return 0; |
547 | } |
548 | |
549 | static int snd_es1688_capture_open(struct snd_pcm_substream *substream) |
550 | { |
551 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
552 | struct snd_pcm_runtime *runtime = substream->runtime; |
553 | |
554 | if (chip->playback_substream != NULL) |
555 | return -EAGAIN; |
556 | chip->capture_substream = substream; |
557 | runtime->hw = snd_es1688_capture; |
558 | snd_pcm_hw_constraint_ratnums(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
559 | r: &hw_constraints_clocks); |
560 | return 0; |
561 | } |
562 | |
563 | static int snd_es1688_playback_close(struct snd_pcm_substream *substream) |
564 | { |
565 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
566 | |
567 | chip->playback_substream = NULL; |
568 | return 0; |
569 | } |
570 | |
571 | static int snd_es1688_capture_close(struct snd_pcm_substream *substream) |
572 | { |
573 | struct snd_es1688 *chip = snd_pcm_substream_chip(substream); |
574 | |
575 | chip->capture_substream = NULL; |
576 | return 0; |
577 | } |
578 | |
579 | static int snd_es1688_free(struct snd_es1688 *chip) |
580 | { |
581 | if (chip->hardware != ES1688_HW_UNDEF) |
582 | snd_es1688_init(chip, enable: 0); |
583 | release_and_free_resource(res: chip->res_port); |
584 | if (chip->irq >= 0) |
585 | free_irq(chip->irq, (void *) chip); |
586 | if (chip->dma8 >= 0) { |
587 | disable_dma(dmanr: chip->dma8); |
588 | free_dma(dmanr: chip->dma8); |
589 | } |
590 | return 0; |
591 | } |
592 | |
593 | static int snd_es1688_dev_free(struct snd_device *device) |
594 | { |
595 | struct snd_es1688 *chip = device->device_data; |
596 | return snd_es1688_free(chip); |
597 | } |
598 | |
599 | static const char *snd_es1688_chip_id(struct snd_es1688 *chip) |
600 | { |
601 | static char tmp[16]; |
602 | sprintf(buf: tmp, fmt: "ES%s688 rev %i" , chip->hardware == ES1688_HW_688 ? "" : "1" , chip->version & 0x0f); |
603 | return tmp; |
604 | } |
605 | |
606 | int snd_es1688_create(struct snd_card *card, |
607 | struct snd_es1688 *chip, |
608 | unsigned long port, |
609 | unsigned long mpu_port, |
610 | int irq, |
611 | int mpu_irq, |
612 | int dma8, |
613 | unsigned short hardware) |
614 | { |
615 | static const struct snd_device_ops ops = { |
616 | .dev_free = snd_es1688_dev_free, |
617 | }; |
618 | |
619 | int err; |
620 | |
621 | if (chip == NULL) |
622 | return -ENOMEM; |
623 | chip->irq = -1; |
624 | chip->dma8 = -1; |
625 | chip->hardware = ES1688_HW_UNDEF; |
626 | |
627 | chip->res_port = request_region(port + 4, 12, "ES1688" ); |
628 | if (chip->res_port == NULL) { |
629 | snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n" , port + 4); |
630 | err = -EBUSY; |
631 | goto exit; |
632 | } |
633 | |
634 | err = request_irq(irq, handler: snd_es1688_interrupt, flags: 0, name: "ES1688" , dev: (void *) chip); |
635 | if (err < 0) { |
636 | snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n" , irq); |
637 | goto exit; |
638 | } |
639 | |
640 | chip->irq = irq; |
641 | card->sync_irq = chip->irq; |
642 | err = request_dma(dmanr: dma8, device_id: "ES1688" ); |
643 | |
644 | if (err < 0) { |
645 | snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n" , dma8); |
646 | goto exit; |
647 | } |
648 | chip->dma8 = dma8; |
649 | |
650 | spin_lock_init(&chip->reg_lock); |
651 | spin_lock_init(&chip->mixer_lock); |
652 | chip->port = port; |
653 | mpu_port &= ~0x000f; |
654 | if (mpu_port < 0x300 || mpu_port > 0x330) |
655 | mpu_port = 0; |
656 | chip->mpu_port = mpu_port; |
657 | chip->mpu_irq = mpu_irq; |
658 | chip->hardware = hardware; |
659 | |
660 | err = snd_es1688_probe(chip); |
661 | if (err < 0) |
662 | goto exit; |
663 | |
664 | err = snd_es1688_init(chip, enable: 1); |
665 | if (err < 0) |
666 | goto exit; |
667 | |
668 | /* Register device */ |
669 | err = snd_device_new(card, type: SNDRV_DEV_LOWLEVEL, device_data: chip, ops: &ops); |
670 | exit: |
671 | if (err) |
672 | snd_es1688_free(chip); |
673 | return err; |
674 | } |
675 | |
676 | static const struct snd_pcm_ops snd_es1688_playback_ops = { |
677 | .open = snd_es1688_playback_open, |
678 | .close = snd_es1688_playback_close, |
679 | .prepare = snd_es1688_playback_prepare, |
680 | .trigger = snd_es1688_playback_trigger, |
681 | .pointer = snd_es1688_playback_pointer, |
682 | }; |
683 | |
684 | static const struct snd_pcm_ops snd_es1688_capture_ops = { |
685 | .open = snd_es1688_capture_open, |
686 | .close = snd_es1688_capture_close, |
687 | .prepare = snd_es1688_capture_prepare, |
688 | .trigger = snd_es1688_capture_trigger, |
689 | .pointer = snd_es1688_capture_pointer, |
690 | }; |
691 | |
692 | int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device) |
693 | { |
694 | struct snd_pcm *pcm; |
695 | int err; |
696 | |
697 | err = snd_pcm_new(card, id: "ESx688" , device, playback_count: 1, capture_count: 1, rpcm: &pcm); |
698 | if (err < 0) |
699 | return err; |
700 | |
701 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, ops: &snd_es1688_playback_ops); |
702 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_es1688_capture_ops); |
703 | |
704 | pcm->private_data = chip; |
705 | pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX; |
706 | strcpy(p: pcm->name, q: snd_es1688_chip_id(chip)); |
707 | chip->pcm = pcm; |
708 | |
709 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: card->dev, |
710 | size: 64*1024, max: 64*1024); |
711 | return 0; |
712 | } |
713 | |
714 | /* |
715 | * MIXER part |
716 | */ |
717 | |
718 | static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
719 | { |
720 | static const char * const texts[8] = { |
721 | "Mic" , "Mic Master" , "CD" , "AOUT" , |
722 | "Mic1" , "Mix" , "Line" , "Master" |
723 | }; |
724 | |
725 | return snd_ctl_enum_info(info: uinfo, channels: 1, items: 8, names: texts); |
726 | } |
727 | |
728 | static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
729 | { |
730 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
731 | ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7; |
732 | return 0; |
733 | } |
734 | |
735 | static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
736 | { |
737 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
738 | unsigned long flags; |
739 | unsigned char oval, nval; |
740 | int change; |
741 | |
742 | if (ucontrol->value.enumerated.item[0] > 8) |
743 | return -EINVAL; |
744 | spin_lock_irqsave(&chip->reg_lock, flags); |
745 | oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV); |
746 | nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15); |
747 | change = nval != oval; |
748 | if (change) |
749 | snd_es1688_mixer_write(chip, ES1688_REC_DEV, data: nval); |
750 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
751 | return change; |
752 | } |
753 | |
754 | #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \ |
755 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ |
756 | .info = snd_es1688_info_single, \ |
757 | .get = snd_es1688_get_single, .put = snd_es1688_put_single, \ |
758 | .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } |
759 | |
760 | static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
761 | { |
762 | int mask = (kcontrol->private_value >> 16) & 0xff; |
763 | |
764 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; |
765 | uinfo->count = 1; |
766 | uinfo->value.integer.min = 0; |
767 | uinfo->value.integer.max = mask; |
768 | return 0; |
769 | } |
770 | |
771 | static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
772 | { |
773 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
774 | unsigned long flags; |
775 | int reg = kcontrol->private_value & 0xff; |
776 | int shift = (kcontrol->private_value >> 8) & 0xff; |
777 | int mask = (kcontrol->private_value >> 16) & 0xff; |
778 | int invert = (kcontrol->private_value >> 24) & 0xff; |
779 | |
780 | spin_lock_irqsave(&chip->reg_lock, flags); |
781 | ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask; |
782 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
783 | if (invert) |
784 | ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; |
785 | return 0; |
786 | } |
787 | |
788 | static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
789 | { |
790 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
791 | unsigned long flags; |
792 | int reg = kcontrol->private_value & 0xff; |
793 | int shift = (kcontrol->private_value >> 8) & 0xff; |
794 | int mask = (kcontrol->private_value >> 16) & 0xff; |
795 | int invert = (kcontrol->private_value >> 24) & 0xff; |
796 | int change; |
797 | unsigned char oval, nval; |
798 | |
799 | nval = (ucontrol->value.integer.value[0] & mask); |
800 | if (invert) |
801 | nval = mask - nval; |
802 | nval <<= shift; |
803 | spin_lock_irqsave(&chip->reg_lock, flags); |
804 | oval = snd_es1688_mixer_read(chip, reg); |
805 | nval = (oval & ~(mask << shift)) | nval; |
806 | change = nval != oval; |
807 | if (change) |
808 | snd_es1688_mixer_write(chip, reg, data: nval); |
809 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
810 | return change; |
811 | } |
812 | |
813 | #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \ |
814 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ |
815 | .info = snd_es1688_info_double, \ |
816 | .get = snd_es1688_get_double, .put = snd_es1688_put_double, \ |
817 | .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) } |
818 | |
819 | static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
820 | { |
821 | int mask = (kcontrol->private_value >> 24) & 0xff; |
822 | |
823 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; |
824 | uinfo->count = 2; |
825 | uinfo->value.integer.min = 0; |
826 | uinfo->value.integer.max = mask; |
827 | return 0; |
828 | } |
829 | |
830 | static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
831 | { |
832 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
833 | unsigned long flags; |
834 | int left_reg = kcontrol->private_value & 0xff; |
835 | int right_reg = (kcontrol->private_value >> 8) & 0xff; |
836 | int shift_left = (kcontrol->private_value >> 16) & 0x07; |
837 | int shift_right = (kcontrol->private_value >> 19) & 0x07; |
838 | int mask = (kcontrol->private_value >> 24) & 0xff; |
839 | int invert = (kcontrol->private_value >> 22) & 1; |
840 | unsigned char left, right; |
841 | |
842 | spin_lock_irqsave(&chip->reg_lock, flags); |
843 | if (left_reg < 0xa0) |
844 | left = snd_es1688_mixer_read(chip, reg: left_reg); |
845 | else |
846 | left = snd_es1688_read(chip, reg: left_reg); |
847 | if (left_reg != right_reg) { |
848 | if (right_reg < 0xa0) |
849 | right = snd_es1688_mixer_read(chip, reg: right_reg); |
850 | else |
851 | right = snd_es1688_read(chip, reg: right_reg); |
852 | } else |
853 | right = left; |
854 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
855 | ucontrol->value.integer.value[0] = (left >> shift_left) & mask; |
856 | ucontrol->value.integer.value[1] = (right >> shift_right) & mask; |
857 | if (invert) { |
858 | ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; |
859 | ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; |
860 | } |
861 | return 0; |
862 | } |
863 | |
864 | static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
865 | { |
866 | struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol); |
867 | unsigned long flags; |
868 | int left_reg = kcontrol->private_value & 0xff; |
869 | int right_reg = (kcontrol->private_value >> 8) & 0xff; |
870 | int shift_left = (kcontrol->private_value >> 16) & 0x07; |
871 | int shift_right = (kcontrol->private_value >> 19) & 0x07; |
872 | int mask = (kcontrol->private_value >> 24) & 0xff; |
873 | int invert = (kcontrol->private_value >> 22) & 1; |
874 | int change; |
875 | unsigned char val1, val2, oval1, oval2; |
876 | |
877 | val1 = ucontrol->value.integer.value[0] & mask; |
878 | val2 = ucontrol->value.integer.value[1] & mask; |
879 | if (invert) { |
880 | val1 = mask - val1; |
881 | val2 = mask - val2; |
882 | } |
883 | val1 <<= shift_left; |
884 | val2 <<= shift_right; |
885 | spin_lock_irqsave(&chip->reg_lock, flags); |
886 | if (left_reg != right_reg) { |
887 | if (left_reg < 0xa0) |
888 | oval1 = snd_es1688_mixer_read(chip, reg: left_reg); |
889 | else |
890 | oval1 = snd_es1688_read(chip, reg: left_reg); |
891 | if (right_reg < 0xa0) |
892 | oval2 = snd_es1688_mixer_read(chip, reg: right_reg); |
893 | else |
894 | oval2 = snd_es1688_read(chip, reg: right_reg); |
895 | val1 = (oval1 & ~(mask << shift_left)) | val1; |
896 | val2 = (oval2 & ~(mask << shift_right)) | val2; |
897 | change = val1 != oval1 || val2 != oval2; |
898 | if (change) { |
899 | if (left_reg < 0xa0) |
900 | snd_es1688_mixer_write(chip, reg: left_reg, data: val1); |
901 | else |
902 | snd_es1688_write(chip, reg: left_reg, data: val1); |
903 | if (right_reg < 0xa0) |
904 | snd_es1688_mixer_write(chip, reg: right_reg, data: val1); |
905 | else |
906 | snd_es1688_write(chip, reg: right_reg, data: val1); |
907 | } |
908 | } else { |
909 | if (left_reg < 0xa0) |
910 | oval1 = snd_es1688_mixer_read(chip, reg: left_reg); |
911 | else |
912 | oval1 = snd_es1688_read(chip, reg: left_reg); |
913 | val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; |
914 | change = val1 != oval1; |
915 | if (change) { |
916 | if (left_reg < 0xa0) |
917 | snd_es1688_mixer_write(chip, reg: left_reg, data: val1); |
918 | else |
919 | snd_es1688_write(chip, reg: left_reg, data: val1); |
920 | } |
921 | |
922 | } |
923 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
924 | return change; |
925 | } |
926 | |
927 | static const struct snd_kcontrol_new snd_es1688_controls[] = { |
928 | ES1688_DOUBLE("Master Playback Volume" , 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0), |
929 | ES1688_DOUBLE("PCM Playback Volume" , 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0), |
930 | ES1688_DOUBLE("Line Playback Volume" , 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0), |
931 | ES1688_DOUBLE("CD Playback Volume" , 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0), |
932 | ES1688_DOUBLE("FM Playback Volume" , 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0), |
933 | ES1688_DOUBLE("Mic Playback Volume" , 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0), |
934 | ES1688_DOUBLE("Aux Playback Volume" , 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0), |
935 | ES1688_SINGLE("Beep Playback Volume" , 0, ES1688_SPEAKER_DEV, 0, 7, 0), |
936 | ES1688_DOUBLE("Capture Volume" , 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0), |
937 | ES1688_SINGLE("Capture Switch" , 0, ES1688_REC_DEV, 4, 1, 1), |
938 | { |
939 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
940 | .name = "Capture Source" , |
941 | .info = snd_es1688_info_mux, |
942 | .get = snd_es1688_get_mux, |
943 | .put = snd_es1688_put_mux, |
944 | }, |
945 | }; |
946 | |
947 | #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2) |
948 | |
949 | static const unsigned char snd_es1688_init_table[][2] = { |
950 | { ES1688_MASTER_DEV, 0 }, |
951 | { ES1688_PCM_DEV, 0 }, |
952 | { ES1688_LINE_DEV, 0 }, |
953 | { ES1688_CD_DEV, 0 }, |
954 | { ES1688_FM_DEV, 0 }, |
955 | { ES1688_MIC_DEV, 0 }, |
956 | { ES1688_AUX_DEV, 0 }, |
957 | { ES1688_SPEAKER_DEV, 0 }, |
958 | { ES1688_RECLEV_DEV, 0 }, |
959 | { ES1688_REC_DEV, 0x17 } |
960 | }; |
961 | |
962 | int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip) |
963 | { |
964 | unsigned int idx; |
965 | int err; |
966 | unsigned char reg, val; |
967 | |
968 | if (snd_BUG_ON(!chip || !card)) |
969 | return -EINVAL; |
970 | |
971 | strcpy(p: card->mixername, q: snd_es1688_chip_id(chip)); |
972 | |
973 | for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) { |
974 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1(kcontrolnew: &snd_es1688_controls[idx], private_data: chip)); |
975 | if (err < 0) |
976 | return err; |
977 | } |
978 | for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) { |
979 | reg = snd_es1688_init_table[idx][0]; |
980 | val = snd_es1688_init_table[idx][1]; |
981 | if (reg < 0xa0) |
982 | snd_es1688_mixer_write(chip, reg, data: val); |
983 | else |
984 | snd_es1688_write(chip, reg, data: val); |
985 | } |
986 | return 0; |
987 | } |
988 | |
989 | EXPORT_SYMBOL(snd_es1688_mixer_write); |
990 | EXPORT_SYMBOL(snd_es1688_create); |
991 | EXPORT_SYMBOL(snd_es1688_pcm); |
992 | EXPORT_SYMBOL(snd_es1688_mixer); |
993 | |