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
snd_es1688_dsp_command(struct snd_es1688 * chip,unsigned char val)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(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
snd_es1688_dsp_get_byte(struct snd_es1688 * chip)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
snd_es1688_write(struct snd_es1688 * chip,unsigned char reg,unsigned char data)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, reg))
54 return 0;
55 return snd_es1688_dsp_command(chip, data);
56 }
57
snd_es1688_read(struct snd_es1688 * chip,unsigned char reg)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, 0xc0))
62 return -1;
63 if (!snd_es1688_dsp_command(chip, reg))
64 return -1;
65 return snd_es1688_dsp_get_byte(chip);
66 }
67
snd_es1688_mixer_write(struct snd_es1688 * chip,unsigned char reg,unsigned char data)68 void snd_es1688_mixer_write(struct snd_es1688 *chip,
69 unsigned char reg, unsigned char data)
70 {
71 outb(reg, ES1688P(chip, MIXER_ADDR));
72 udelay(10);
73 outb(data, ES1688P(chip, MIXER_DATA));
74 udelay(10);
75 }
76
snd_es1688_mixer_read(struct snd_es1688 * chip,unsigned char reg)77 static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
78 {
79 unsigned char result;
80
81 outb(reg, ES1688P(chip, MIXER_ADDR));
82 udelay(10);
83 result = inb(ES1688P(chip, MIXER_DATA));
84 udelay(10);
85 return result;
86 }
87
snd_es1688_reset(struct snd_es1688 * chip)88 int snd_es1688_reset(struct snd_es1688 *chip)
89 {
90 int i;
91
92 outb(3, ES1688P(chip, RESET)); /* valid only for ESS chips, SB -> 1 */
93 udelay(10);
94 outb(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, 0xc6); /* enable extended mode */
102 return 0;
103 }
104 EXPORT_SYMBOL(snd_es1688_reset);
105
snd_es1688_probe(struct snd_es1688 * chip)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(&chip->reg_lock, flags);
132 return -ENODEV;
133 }
134 snd_es1688_dsp_command(chip, 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(&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, 0xb1, 0x10); /* disable IRQ */
170 snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
171 spin_unlock_irqrestore(&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, 0x40, 0x01);
176 spin_unlock_irqrestore(&chip->mixer_lock, flags);
177
178 return 0;
179 }
180
snd_es1688_init(struct snd_es1688 * chip,int enable)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, 0x40, cfg);
218 spin_unlock_irqrestore(&chip->reg_lock, flags);
219 /* --- */
220 spin_lock_irqsave(&chip->reg_lock, flags);
221 snd_es1688_read(chip, 0xb1);
222 snd_es1688_read(chip, 0xb2);
223 spin_unlock_irqrestore(&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, 0xb1, cfg | (irq_bits << 2));
239 spin_unlock_irqrestore(&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, 0xb2, cfg | (dma_bits << 2));
257 spin_unlock_irqrestore(&chip->reg_lock, flags);
258 } else {
259 spin_lock_irqsave(&chip->reg_lock, flags);
260 snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
261 snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
262 spin_unlock_irqrestore(&chip->reg_lock, flags);
263 }
264 spin_lock_irqsave(&chip->reg_lock, flags);
265 snd_es1688_read(chip, 0xb1);
266 snd_es1688_read(chip, 0xb2);
267 snd_es1688_reset(chip);
268 spin_unlock_irqrestore(&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
snd_es1688_set_rate(struct snd_es1688 * chip,struct snd_pcm_substream * substream)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, 0xa1, bits);
309 snd_es1688_write(chip, 0xa2, divider);
310 }
311
snd_es1688_trigger(struct snd_es1688 * chip,int cmd,unsigned char value)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(&chip->reg_lock);
322 chip->trigger_value = value;
323 val = snd_es1688_read(chip, 0xb8);
324 if ((val < 0) || (val & 0x0f) == value) {
325 spin_unlock(&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, 0xb8, (val & 0xf0) | value);
334 spin_unlock(&chip->reg_lock);
335 return 0;
336 }
337
snd_es1688_playback_prepare(struct snd_pcm_substream * substream)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, 0xb8, 4); /* auto init DMA mode */
351 snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
352 snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
353 if (runtime->channels == 1) {
354 if (snd_pcm_format_width(runtime->format) == 8) {
355 /* 8. bit mono */
356 snd_es1688_write(chip, 0xb6, 0x80);
357 snd_es1688_write(chip, 0xb7, 0x51);
358 snd_es1688_write(chip, 0xb7, 0xd0);
359 } else {
360 /* 16. bit mono */
361 snd_es1688_write(chip, 0xb6, 0x00);
362 snd_es1688_write(chip, 0xb7, 0x71);
363 snd_es1688_write(chip, 0xb7, 0xf4);
364 }
365 } else {
366 if (snd_pcm_format_width(runtime->format) == 8) {
367 /* 8. bit stereo */
368 snd_es1688_write(chip, 0xb6, 0x80);
369 snd_es1688_write(chip, 0xb7, 0x51);
370 snd_es1688_write(chip, 0xb7, 0x98);
371 } else {
372 /* 16. bit stereo */
373 snd_es1688_write(chip, 0xb6, 0x00);
374 snd_es1688_write(chip, 0xb7, 0x71);
375 snd_es1688_write(chip, 0xb7, 0xbc);
376 }
377 }
378 snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
379 snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
380 snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
381 spin_unlock_irqrestore(&chip->reg_lock, flags);
382 /* --- */
383 count = -count;
384 snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
385 spin_lock_irqsave(&chip->reg_lock, flags);
386 snd_es1688_write(chip, 0xa4, (unsigned char) count);
387 snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
388 spin_unlock_irqrestore(&chip->reg_lock, flags);
389 return 0;
390 }
391
snd_es1688_playback_trigger(struct snd_pcm_substream * substream,int cmd)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, 0x05);
397 }
398
snd_es1688_capture_prepare(struct snd_pcm_substream * substream)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, 0xb8, 0x0e); /* auto init DMA mode */
413 snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
414 snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
415 if (runtime->channels == 1) {
416 if (snd_pcm_format_width(runtime->format) == 8) {
417 /* 8. bit mono */
418 snd_es1688_write(chip, 0xb7, 0x51);
419 snd_es1688_write(chip, 0xb7, 0xd0);
420 } else {
421 /* 16. bit mono */
422 snd_es1688_write(chip, 0xb7, 0x71);
423 snd_es1688_write(chip, 0xb7, 0xf4);
424 }
425 } else {
426 if (snd_pcm_format_width(runtime->format) == 8) {
427 /* 8. bit stereo */
428 snd_es1688_write(chip, 0xb7, 0x51);
429 snd_es1688_write(chip, 0xb7, 0x98);
430 } else {
431 /* 16. bit stereo */
432 snd_es1688_write(chip, 0xb7, 0x71);
433 snd_es1688_write(chip, 0xb7, 0xbc);
434 }
435 }
436 snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
437 snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
438 spin_unlock_irqrestore(&chip->reg_lock, flags);
439 /* --- */
440 count = -count;
441 snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
442 spin_lock_irqsave(&chip->reg_lock, flags);
443 snd_es1688_write(chip, 0xa4, (unsigned char) count);
444 snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
445 spin_unlock_irqrestore(&chip->reg_lock, flags);
446 return 0;
447 }
448
snd_es1688_capture_trigger(struct snd_pcm_substream * substream,int cmd)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, 0x0f);
454 }
455
snd_es1688_interrupt(int irq,void * dev_id)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(chip->playback_substream);
462 if (chip->trigger_value == 0x0f) /* ok.. capture is active */
463 snd_pcm_period_elapsed(chip->capture_substream);
464
465 inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
466 return IRQ_HANDLED;
467 }
468
snd_es1688_playback_pointer(struct snd_pcm_substream * substream)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(chip->dma8, chip->dma_size);
477 return bytes_to_frames(substream->runtime, ptr);
478 }
479
snd_es1688_capture_pointer(struct snd_pcm_substream * substream)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(chip->dma8, chip->dma_size);
488 return bytes_to_frames(substream->runtime, 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
snd_es1688_playback_open(struct snd_pcm_substream * substream)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, 0, SNDRV_PCM_HW_PARAM_RATE,
545 &hw_constraints_clocks);
546 return 0;
547 }
548
snd_es1688_capture_open(struct snd_pcm_substream * substream)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, 0, SNDRV_PCM_HW_PARAM_RATE,
559 &hw_constraints_clocks);
560 return 0;
561 }
562
snd_es1688_playback_close(struct snd_pcm_substream * substream)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
snd_es1688_capture_close(struct snd_pcm_substream * substream)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
snd_es1688_free(struct snd_es1688 * chip)579 static int snd_es1688_free(struct snd_es1688 *chip)
580 {
581 if (chip->hardware != ES1688_HW_UNDEF)
582 snd_es1688_init(chip, 0);
583 release_and_free_resource(chip->res_port);
584 if (chip->irq >= 0)
585 free_irq(chip->irq, (void *) chip);
586 if (chip->dma8 >= 0) {
587 disable_dma(chip->dma8);
588 free_dma(chip->dma8);
589 }
590 return 0;
591 }
592
snd_es1688_dev_free(struct snd_device * device)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
snd_es1688_chip_id(struct snd_es1688 * chip)599 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
600 {
601 static char tmp[16];
602 sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
603 return tmp;
604 }
605
snd_es1688_create(struct snd_card * card,struct snd_es1688 * chip,unsigned long port,unsigned long mpu_port,int irq,int mpu_irq,int dma8,unsigned short hardware)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, snd_es1688_interrupt, 0, "ES1688", (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(dma8, "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, 1);
665 if (err < 0)
666 goto exit;
667
668 /* Register device */
669 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &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
snd_es1688_pcm(struct snd_card * card,struct snd_es1688 * chip,int device)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, "ESx688", device, 1, 1, &pcm);
698 if (err < 0)
699 return err;
700
701 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
702 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
703
704 pcm->private_data = chip;
705 pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
706 strcpy(pcm->name, snd_es1688_chip_id(chip));
707 chip->pcm = pcm;
708
709 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, card->dev,
710 64*1024, 64*1024);
711 return 0;
712 }
713
714 /*
715 * MIXER part
716 */
717
snd_es1688_info_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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(uinfo, 1, 8, texts);
726 }
727
snd_es1688_get_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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
snd_es1688_put_mux(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, nval);
750 spin_unlock_irqrestore(&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
snd_es1688_info_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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
snd_es1688_get_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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(&chip->reg_lock, flags);
783 if (invert)
784 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
785 return 0;
786 }
787
snd_es1688_put_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, nval);
809 spin_unlock_irqrestore(&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
snd_es1688_info_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)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
snd_es1688_get_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, left_reg);
845 else
846 left = snd_es1688_read(chip, left_reg);
847 if (left_reg != right_reg) {
848 if (right_reg < 0xa0)
849 right = snd_es1688_mixer_read(chip, right_reg);
850 else
851 right = snd_es1688_read(chip, right_reg);
852 } else
853 right = left;
854 spin_unlock_irqrestore(&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
snd_es1688_put_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)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, left_reg);
889 else
890 oval1 = snd_es1688_read(chip, left_reg);
891 if (right_reg < 0xa0)
892 oval2 = snd_es1688_mixer_read(chip, right_reg);
893 else
894 oval2 = snd_es1688_read(chip, 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, left_reg, val1);
901 else
902 snd_es1688_write(chip, left_reg, val1);
903 if (right_reg < 0xa0)
904 snd_es1688_mixer_write(chip, right_reg, val1);
905 else
906 snd_es1688_write(chip, right_reg, val1);
907 }
908 } else {
909 if (left_reg < 0xa0)
910 oval1 = snd_es1688_mixer_read(chip, left_reg);
911 else
912 oval1 = snd_es1688_read(chip, 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, left_reg, val1);
918 else
919 snd_es1688_write(chip, left_reg, val1);
920 }
921
922 }
923 spin_unlock_irqrestore(&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
snd_es1688_mixer(struct snd_card * card,struct snd_es1688 * chip)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(card->mixername, snd_es1688_chip_id(chip));
972
973 for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
974 err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], 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, val);
983 else
984 snd_es1688_write(chip, reg, 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