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TOMOYO Linux Cross Reference
Linux/sound/isa/es1688/es1688_lib.c

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  1 /*
  2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  3  *  Routines for control of ESS ES1688/688/488 chip
  4  *
  5  *
  6  *   This program is free software; you can redistribute it and/or modify
  7  *   it under the terms of the GNU General Public License as published by
  8  *   the Free Software Foundation; either version 2 of the License, or
  9  *   (at your option) any later version.
 10  *
 11  *   This program is distributed in the hope that it will be useful,
 12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  *   GNU General Public License for more details.
 15  *
 16  *   You should have received a copy of the GNU General Public License
 17  *   along with this program; if not, write to the Free Software
 18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 19  *
 20  */
 21 
 22 #include <linux/init.h>
 23 #include <linux/interrupt.h>
 24 #include <linux/delay.h>
 25 #include <linux/slab.h>
 26 #include <linux/ioport.h>
 27 #include <linux/module.h>
 28 #include <linux/io.h>
 29 #include <sound/core.h>
 30 #include <sound/es1688.h>
 31 #include <sound/initval.h>
 32 
 33 #include <asm/dma.h>
 34 
 35 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
 37 MODULE_LICENSE("GPL");
 38 
 39 static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
 40 {
 41         int i;
 42 
 43         for (i = 10000; i; i--)
 44                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
 45                         outb(val, ES1688P(chip, COMMAND));
 46                         return 1;
 47                 }
 48 #ifdef CONFIG_SND_DEBUG
 49         printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
 50 #endif
 51         return 0;
 52 }
 53 
 54 static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
 55 {
 56         int i;
 57 
 58         for (i = 1000; i; i--)
 59                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
 60                         return inb(ES1688P(chip, READ));
 61         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
 62         return -ENODEV;
 63 }
 64 
 65 static int snd_es1688_write(struct snd_es1688 *chip,
 66                             unsigned char reg, unsigned char data)
 67 {
 68         if (!snd_es1688_dsp_command(chip, reg))
 69                 return 0;
 70         return snd_es1688_dsp_command(chip, data);
 71 }
 72 
 73 static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
 74 {
 75         /* Read a byte from an extended mode register of ES1688 */
 76         if (!snd_es1688_dsp_command(chip, 0xc0))
 77                 return -1;
 78         if (!snd_es1688_dsp_command(chip, reg))
 79                 return -1;
 80         return snd_es1688_dsp_get_byte(chip);
 81 }
 82 
 83 void snd_es1688_mixer_write(struct snd_es1688 *chip,
 84                             unsigned char reg, unsigned char data)
 85 {
 86         outb(reg, ES1688P(chip, MIXER_ADDR));
 87         udelay(10);
 88         outb(data, ES1688P(chip, MIXER_DATA));
 89         udelay(10);
 90 }
 91 
 92 static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
 93 {
 94         unsigned char result;
 95 
 96         outb(reg, ES1688P(chip, MIXER_ADDR));
 97         udelay(10);
 98         result = inb(ES1688P(chip, MIXER_DATA));
 99         udelay(10);
100         return result;
101 }
102 
103 int snd_es1688_reset(struct snd_es1688 *chip)
104 {
105         int i;
106 
107         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
108         udelay(10);
109         outb(0, ES1688P(chip, RESET));
110         udelay(30);
111         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
112         if (inb(ES1688P(chip, READ)) != 0xaa) {
113                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
114                 return -ENODEV;
115         }
116         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
117         return 0;
118 }
119 EXPORT_SYMBOL(snd_es1688_reset);
120 
121 static int snd_es1688_probe(struct snd_es1688 *chip)
122 {
123         unsigned long flags;
124         unsigned short major, minor, hw;
125         int i;
126 
127         /*
128          *  initialization sequence
129          */
130 
131         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
133         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
134         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
135         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
136         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
137         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
138         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
139         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
140         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
141         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
142         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
143 
144         if (snd_es1688_reset(chip) < 0) {
145                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
146                 spin_unlock_irqrestore(&chip->reg_lock, flags);
147                 return -ENODEV;
148         }
149         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
150 
151         for (i = 1000, major = minor = 0; i; i--) {
152                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
153                         if (major == 0) {
154                                 major = inb(ES1688P(chip, READ));
155                         } else {
156                                 minor = inb(ES1688P(chip, READ));
157                         }
158                 }
159         }
160 
161         spin_unlock_irqrestore(&chip->reg_lock, flags);
162 
163         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
164 
165         chip->version = (major << 8) | minor;
166         if (!chip->version)
167                 return -ENODEV; /* probably SB */
168 
169         hw = ES1688_HW_AUTO;
170         switch (chip->version & 0xfff0) {
171         case 0x4880:
172                 snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
173                            "but driver is in another place\n", chip->port);
174                 return -ENODEV;
175         case 0x6880:
176                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
177                 break;
178         default:
179                 snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
180                            "with version 0x%x (Jazz16 soundcard?)\n",
181                            chip->port, chip->version);
182                 return -ENODEV;
183         }
184 
185         spin_lock_irqsave(&chip->reg_lock, flags);
186         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
187         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
188         spin_unlock_irqrestore(&chip->reg_lock, flags);
189 
190         /* enable joystick, but disable OPL3 */
191         spin_lock_irqsave(&chip->mixer_lock, flags);
192         snd_es1688_mixer_write(chip, 0x40, 0x01);
193         spin_unlock_irqrestore(&chip->mixer_lock, flags);
194 
195         return 0;
196 }
197 
198 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
199 {
200         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
201         unsigned long flags;
202         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
203 
204         /* ok.. setup MPU-401 port and joystick and OPL3 */
205         cfg = 0x01;             /* enable joystick, but disable OPL3 */
206         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
207                 tmp = (chip->mpu_port & 0x0f0) >> 4;
208                 if (tmp <= 3) {
209                         switch (chip->mpu_irq) {
210                         case 9:
211                                 tmp1 = 4;
212                                 break;
213                         case 5:
214                                 tmp1 = 5;
215                                 break;
216                         case 7:
217                                 tmp1 = 6;
218                                 break;
219                         case 10:
220                                 tmp1 = 7;
221                                 break;
222                         default:
223                                 tmp1 = 0;
224                         }
225                         if (tmp1) {
226                                 cfg |= (tmp << 3) | (tmp1 << 5);
227                         }
228                 }
229         }
230 #if 0
231         snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
232 #endif
233         spin_lock_irqsave(&chip->reg_lock, flags);
234         snd_es1688_mixer_write(chip, 0x40, cfg);
235         spin_unlock_irqrestore(&chip->reg_lock, flags);
236         /* --- */
237         spin_lock_irqsave(&chip->reg_lock, flags);
238         snd_es1688_read(chip, 0xb1);
239         snd_es1688_read(chip, 0xb2);
240         spin_unlock_irqrestore(&chip->reg_lock, flags);
241         if (enable) {
242                 cfg = 0xf0;     /* enable only DMA counter interrupt */
243                 irq_bits = irqs[chip->irq & 0x0f];
244                 if (irq_bits < 0) {
245                         snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
246                                    "for ES1688 chip!!\n",
247                                    chip->port, chip->irq);
248 #if 0
249                         irq_bits = 0;
250                         cfg = 0x10;
251 #endif
252                         return -EINVAL;
253                 }
254                 spin_lock_irqsave(&chip->reg_lock, flags);
255                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
256                 spin_unlock_irqrestore(&chip->reg_lock, flags);
257                 cfg = 0xf0;     /* extended mode DMA enable */
258                 dma = chip->dma8;
259                 if (dma > 3 || dma == 2) {
260                         snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
261                                    "for ES1688 chip!!\n", chip->port, dma);
262 #if 0
263                         dma_bits = 0;
264                         cfg = 0x00;     /* disable all DMA */
265 #endif
266                         return -EINVAL;
267                 } else {
268                         dma_bits = dma;
269                         if (dma != 3)
270                                 dma_bits++;
271                 }
272                 spin_lock_irqsave(&chip->reg_lock, flags);
273                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
274                 spin_unlock_irqrestore(&chip->reg_lock, flags);
275         } else {
276                 spin_lock_irqsave(&chip->reg_lock, flags);
277                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
278                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
279                 spin_unlock_irqrestore(&chip->reg_lock, flags);
280         }
281         spin_lock_irqsave(&chip->reg_lock, flags);
282         snd_es1688_read(chip, 0xb1);
283         snd_es1688_read(chip, 0xb2);
284         snd_es1688_reset(chip);
285         spin_unlock_irqrestore(&chip->reg_lock, flags);
286         return 0;
287 }
288 
289 /*
290 
291  */
292 
293 static struct snd_ratnum clocks[2] = {
294         {
295                 .num = 795444,
296                 .den_min = 1,
297                 .den_max = 128,
298                 .den_step = 1,
299         },
300         {
301                 .num = 397722,
302                 .den_min = 1,
303                 .den_max = 128,
304                 .den_step = 1,
305         }
306 };
307 
308 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
309         .nrats = 2,
310         .rats = clocks,
311 };
312 
313 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
314 {
315         struct snd_pcm_runtime *runtime = substream->runtime;
316         unsigned int bits, divider;
317 
318         if (runtime->rate_num == clocks[0].num)
319                 bits = 256 - runtime->rate_den;
320         else
321                 bits = 128 - runtime->rate_den;
322         /* set filter register */
323         divider = 256 - 7160000*20/(8*82*runtime->rate);
324         /* write result to hardware */
325         snd_es1688_write(chip, 0xa1, bits);
326         snd_es1688_write(chip, 0xa2, divider);
327 }
328 
329 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
330                             unsigned int cmd, void *arg)
331 {
332         return snd_pcm_lib_ioctl(substream, cmd, arg);
333 }
334 
335 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
336 {
337         int val;
338 
339         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
340                 value = 0x00;
341         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
342                 return -EINVAL;
343         }
344         spin_lock(&chip->reg_lock);
345         chip->trigger_value = value;
346         val = snd_es1688_read(chip, 0xb8);
347         if ((val < 0) || (val & 0x0f) == value) {
348                 spin_unlock(&chip->reg_lock);
349                 return -EINVAL; /* something is wrong */
350         }
351 #if 0
352         printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
353         printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
354                snd_dma_pointer(chip->dma8, chip->dma_size));
355 #endif
356         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
357         spin_unlock(&chip->reg_lock);
358         return 0;
359 }
360 
361 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
362                                 struct snd_pcm_hw_params *hw_params)
363 {
364         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
365 }
366 
367 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
368 {
369         return snd_pcm_lib_free_pages(substream);
370 }
371 
372 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
373 {
374         unsigned long flags;
375         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
376         struct snd_pcm_runtime *runtime = substream->runtime;
377         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
378         unsigned int count = snd_pcm_lib_period_bytes(substream);
379 
380         chip->dma_size = size;
381         spin_lock_irqsave(&chip->reg_lock, flags);
382         snd_es1688_reset(chip);
383         snd_es1688_set_rate(chip, substream);
384         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
385         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
386         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
387         if (runtime->channels == 1) {
388                 if (snd_pcm_format_width(runtime->format) == 8) {
389                         /* 8. bit mono */
390                         snd_es1688_write(chip, 0xb6, 0x80);
391                         snd_es1688_write(chip, 0xb7, 0x51);
392                         snd_es1688_write(chip, 0xb7, 0xd0);
393                 } else {
394                         /* 16. bit mono */
395                         snd_es1688_write(chip, 0xb6, 0x00);
396                         snd_es1688_write(chip, 0xb7, 0x71);
397                         snd_es1688_write(chip, 0xb7, 0xf4);
398                 }
399         } else {
400                 if (snd_pcm_format_width(runtime->format) == 8) {
401                         /* 8. bit stereo */
402                         snd_es1688_write(chip, 0xb6, 0x80);
403                         snd_es1688_write(chip, 0xb7, 0x51);
404                         snd_es1688_write(chip, 0xb7, 0x98);
405                 } else {
406                         /* 16. bit stereo */
407                         snd_es1688_write(chip, 0xb6, 0x00);
408                         snd_es1688_write(chip, 0xb7, 0x71);
409                         snd_es1688_write(chip, 0xb7, 0xbc);
410                 }
411         }
412         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
413         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
414         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
415         spin_unlock_irqrestore(&chip->reg_lock, flags);
416         /* --- */
417         count = -count;
418         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
419         spin_lock_irqsave(&chip->reg_lock, flags);
420         snd_es1688_write(chip, 0xa4, (unsigned char) count);
421         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
422         spin_unlock_irqrestore(&chip->reg_lock, flags);
423         return 0;
424 }
425 
426 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
427                                        int cmd)
428 {
429         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
430         return snd_es1688_trigger(chip, cmd, 0x05);
431 }
432 
433 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
434 {
435         unsigned long flags;
436         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
437         struct snd_pcm_runtime *runtime = substream->runtime;
438         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
439         unsigned int count = snd_pcm_lib_period_bytes(substream);
440 
441         chip->dma_size = size;
442         spin_lock_irqsave(&chip->reg_lock, flags);
443         snd_es1688_reset(chip);
444         snd_es1688_set_rate(chip, substream);
445         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
446         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
447         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
448         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
449         if (runtime->channels == 1) {
450                 if (snd_pcm_format_width(runtime->format) == 8) {
451                         /* 8. bit mono */
452                         snd_es1688_write(chip, 0xb7, 0x51);
453                         snd_es1688_write(chip, 0xb7, 0xd0);
454                 } else {
455                         /* 16. bit mono */
456                         snd_es1688_write(chip, 0xb7, 0x71);
457                         snd_es1688_write(chip, 0xb7, 0xf4);
458                 }
459         } else {
460                 if (snd_pcm_format_width(runtime->format) == 8) {
461                         /* 8. bit stereo */
462                         snd_es1688_write(chip, 0xb7, 0x51);
463                         snd_es1688_write(chip, 0xb7, 0x98);
464                 } else {
465                         /* 16. bit stereo */
466                         snd_es1688_write(chip, 0xb7, 0x71);
467                         snd_es1688_write(chip, 0xb7, 0xbc);
468                 }
469         }
470         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
471         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
472         spin_unlock_irqrestore(&chip->reg_lock, flags);
473         /* --- */
474         count = -count;
475         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
476         spin_lock_irqsave(&chip->reg_lock, flags);
477         snd_es1688_write(chip, 0xa4, (unsigned char) count);
478         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
479         spin_unlock_irqrestore(&chip->reg_lock, flags);
480         return 0;
481 }
482 
483 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
484                                       int cmd)
485 {
486         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
487         return snd_es1688_trigger(chip, cmd, 0x0f);
488 }
489 
490 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
491 {
492         struct snd_es1688 *chip = dev_id;
493 
494         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
495                 snd_pcm_period_elapsed(chip->playback_substream);
496         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
497                 snd_pcm_period_elapsed(chip->capture_substream);
498 
499         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
500         return IRQ_HANDLED;
501 }
502 
503 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
504 {
505         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
506         size_t ptr;
507         
508         if (chip->trigger_value != 0x05)
509                 return 0;
510         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
511         return bytes_to_frames(substream->runtime, ptr);
512 }
513 
514 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
515 {
516         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
517         size_t ptr;
518         
519         if (chip->trigger_value != 0x0f)
520                 return 0;
521         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
522         return bytes_to_frames(substream->runtime, ptr);
523 }
524 
525 /*
526 
527  */
528 
529 static struct snd_pcm_hardware snd_es1688_playback =
530 {
531         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
532                                  SNDRV_PCM_INFO_MMAP_VALID),
533         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
534         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
535         .rate_min =             4000,
536         .rate_max =             48000,
537         .channels_min =         1,
538         .channels_max =         2,
539         .buffer_bytes_max =     65536,
540         .period_bytes_min =     64,
541         .period_bytes_max =     65536,
542         .periods_min =          1,
543         .periods_max =          1024,
544         .fifo_size =            0,
545 };
546 
547 static struct snd_pcm_hardware snd_es1688_capture =
548 {
549         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
550                                  SNDRV_PCM_INFO_MMAP_VALID),
551         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
552         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
553         .rate_min =             4000,
554         .rate_max =             48000,
555         .channels_min =         1,
556         .channels_max =         2,
557         .buffer_bytes_max =     65536,
558         .period_bytes_min =     64,
559         .period_bytes_max =     65536,
560         .periods_min =          1,
561         .periods_max =          1024,
562         .fifo_size =            0,
563 };
564 
565 /*
566 
567  */
568 
569 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
570 {
571         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
572         struct snd_pcm_runtime *runtime = substream->runtime;
573 
574         if (chip->capture_substream != NULL)
575                 return -EAGAIN;
576         chip->playback_substream = substream;
577         runtime->hw = snd_es1688_playback;
578         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
579                                       &hw_constraints_clocks);
580         return 0;
581 }
582 
583 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
584 {
585         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
586         struct snd_pcm_runtime *runtime = substream->runtime;
587 
588         if (chip->playback_substream != NULL)
589                 return -EAGAIN;
590         chip->capture_substream = substream;
591         runtime->hw = snd_es1688_capture;
592         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
593                                       &hw_constraints_clocks);
594         return 0;
595 }
596 
597 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
598 {
599         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
600 
601         chip->playback_substream = NULL;
602         return 0;
603 }
604 
605 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
606 {
607         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
608 
609         chip->capture_substream = NULL;
610         return 0;
611 }
612 
613 static int snd_es1688_free(struct snd_es1688 *chip)
614 {
615         if (chip->hardware != ES1688_HW_UNDEF)
616                 snd_es1688_init(chip, 0);
617         release_and_free_resource(chip->res_port);
618         if (chip->irq >= 0)
619                 free_irq(chip->irq, (void *) chip);
620         if (chip->dma8 >= 0) {
621                 disable_dma(chip->dma8);
622                 free_dma(chip->dma8);
623         }
624         return 0;
625 }
626 
627 static int snd_es1688_dev_free(struct snd_device *device)
628 {
629         struct snd_es1688 *chip = device->device_data;
630         return snd_es1688_free(chip);
631 }
632 
633 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
634 {
635         static char tmp[16];
636         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
637         return tmp;
638 }
639 
640 int snd_es1688_create(struct snd_card *card,
641                       struct snd_es1688 *chip,
642                       unsigned long port,
643                       unsigned long mpu_port,
644                       int irq,
645                       int mpu_irq,
646                       int dma8,
647                       unsigned short hardware)
648 {
649         static struct snd_device_ops ops = {
650                 .dev_free =     snd_es1688_dev_free,
651         };
652                                 
653         int err;
654 
655         if (chip == NULL)
656                 return -ENOMEM;
657         chip->irq = -1;
658         chip->dma8 = -1;
659         chip->hardware = ES1688_HW_UNDEF;
660         
661         chip->res_port = request_region(port + 4, 12, "ES1688");
662         if (chip->res_port == NULL) {
663                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
664                 err = -EBUSY;
665                 goto exit;
666         }
667 
668         err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip);
669         if (err < 0) {
670                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
671                 goto exit;
672         }
673 
674         chip->irq = irq;
675         err = request_dma(dma8, "ES1688");
676 
677         if (err < 0) {
678                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
679                 goto exit;
680         }
681         chip->dma8 = dma8;
682 
683         spin_lock_init(&chip->reg_lock);
684         spin_lock_init(&chip->mixer_lock);
685         chip->port = port;
686         mpu_port &= ~0x000f;
687         if (mpu_port < 0x300 || mpu_port > 0x330)
688                 mpu_port = 0;
689         chip->mpu_port = mpu_port;
690         chip->mpu_irq = mpu_irq;
691         chip->hardware = hardware;
692 
693         err = snd_es1688_probe(chip);
694         if (err < 0)
695                 goto exit;
696 
697         err = snd_es1688_init(chip, 1);
698         if (err < 0)
699                 goto exit;
700 
701         /* Register device */
702         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
703 exit:
704         if (err)
705                 snd_es1688_free(chip);
706         return err;
707 }
708 
709 static struct snd_pcm_ops snd_es1688_playback_ops = {
710         .open =                 snd_es1688_playback_open,
711         .close =                snd_es1688_playback_close,
712         .ioctl =                snd_es1688_ioctl,
713         .hw_params =            snd_es1688_hw_params,
714         .hw_free =              snd_es1688_hw_free,
715         .prepare =              snd_es1688_playback_prepare,
716         .trigger =              snd_es1688_playback_trigger,
717         .pointer =              snd_es1688_playback_pointer,
718 };
719 
720 static struct snd_pcm_ops snd_es1688_capture_ops = {
721         .open =                 snd_es1688_capture_open,
722         .close =                snd_es1688_capture_close,
723         .ioctl =                snd_es1688_ioctl,
724         .hw_params =            snd_es1688_hw_params,
725         .hw_free =              snd_es1688_hw_free,
726         .prepare =              snd_es1688_capture_prepare,
727         .trigger =              snd_es1688_capture_trigger,
728         .pointer =              snd_es1688_capture_pointer,
729 };
730 
731 int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device)
732 {
733         struct snd_pcm *pcm;
734         int err;
735 
736         err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
737         if (err < 0)
738                 return err;
739 
740         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
741         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
742 
743         pcm->private_data = chip;
744         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
745         sprintf(pcm->name, snd_es1688_chip_id(chip));
746         chip->pcm = pcm;
747 
748         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
749                                               snd_dma_isa_data(),
750                                               64*1024, 64*1024);
751         return 0;
752 }
753 
754 /*
755  *  MIXER part
756  */
757 
758 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
759 {
760         static const char * const texts[8] = {
761                 "Mic", "Mic Master", "CD", "AOUT",
762                 "Mic1", "Mix", "Line", "Master"
763         };
764 
765         return snd_ctl_enum_info(uinfo, 1, 8, texts);
766 }
767 
768 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
769 {
770         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
771         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
772         return 0;
773 }
774 
775 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
776 {
777         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
778         unsigned long flags;
779         unsigned char oval, nval;
780         int change;
781         
782         if (ucontrol->value.enumerated.item[0] > 8)
783                 return -EINVAL;
784         spin_lock_irqsave(&chip->reg_lock, flags);
785         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
786         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
787         change = nval != oval;
788         if (change)
789                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
790         spin_unlock_irqrestore(&chip->reg_lock, flags);
791         return change;
792 }
793 
794 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
795 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
796   .info = snd_es1688_info_single, \
797   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
798   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
799 
800 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
801 {
802         int mask = (kcontrol->private_value >> 16) & 0xff;
803 
804         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
805         uinfo->count = 1;
806         uinfo->value.integer.min = 0;
807         uinfo->value.integer.max = mask;
808         return 0;
809 }
810 
811 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
812 {
813         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
814         unsigned long flags;
815         int reg = kcontrol->private_value & 0xff;
816         int shift = (kcontrol->private_value >> 8) & 0xff;
817         int mask = (kcontrol->private_value >> 16) & 0xff;
818         int invert = (kcontrol->private_value >> 24) & 0xff;
819         
820         spin_lock_irqsave(&chip->reg_lock, flags);
821         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
822         spin_unlock_irqrestore(&chip->reg_lock, flags);
823         if (invert)
824                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
825         return 0;
826 }
827 
828 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
829 {
830         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
831         unsigned long flags;
832         int reg = kcontrol->private_value & 0xff;
833         int shift = (kcontrol->private_value >> 8) & 0xff;
834         int mask = (kcontrol->private_value >> 16) & 0xff;
835         int invert = (kcontrol->private_value >> 24) & 0xff;
836         int change;
837         unsigned char oval, nval;
838         
839         nval = (ucontrol->value.integer.value[0] & mask);
840         if (invert)
841                 nval = mask - nval;
842         nval <<= shift;
843         spin_lock_irqsave(&chip->reg_lock, flags);
844         oval = snd_es1688_mixer_read(chip, reg);
845         nval = (oval & ~(mask << shift)) | nval;
846         change = nval != oval;
847         if (change)
848                 snd_es1688_mixer_write(chip, reg, nval);
849         spin_unlock_irqrestore(&chip->reg_lock, flags);
850         return change;
851 }
852 
853 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
854 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
855   .info = snd_es1688_info_double, \
856   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
857   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
858 
859 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
860 {
861         int mask = (kcontrol->private_value >> 24) & 0xff;
862 
863         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
864         uinfo->count = 2;
865         uinfo->value.integer.min = 0;
866         uinfo->value.integer.max = mask;
867         return 0;
868 }
869 
870 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
871 {
872         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
873         unsigned long flags;
874         int left_reg = kcontrol->private_value & 0xff;
875         int right_reg = (kcontrol->private_value >> 8) & 0xff;
876         int shift_left = (kcontrol->private_value >> 16) & 0x07;
877         int shift_right = (kcontrol->private_value >> 19) & 0x07;
878         int mask = (kcontrol->private_value >> 24) & 0xff;
879         int invert = (kcontrol->private_value >> 22) & 1;
880         unsigned char left, right;
881         
882         spin_lock_irqsave(&chip->reg_lock, flags);
883         if (left_reg < 0xa0)
884                 left = snd_es1688_mixer_read(chip, left_reg);
885         else
886                 left = snd_es1688_read(chip, left_reg);
887         if (left_reg != right_reg) {
888                 if (right_reg < 0xa0) 
889                         right = snd_es1688_mixer_read(chip, right_reg);
890                 else
891                         right = snd_es1688_read(chip, right_reg);
892         } else
893                 right = left;
894         spin_unlock_irqrestore(&chip->reg_lock, flags);
895         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
896         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
897         if (invert) {
898                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
899                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
900         }
901         return 0;
902 }
903 
904 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
905 {
906         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
907         unsigned long flags;
908         int left_reg = kcontrol->private_value & 0xff;
909         int right_reg = (kcontrol->private_value >> 8) & 0xff;
910         int shift_left = (kcontrol->private_value >> 16) & 0x07;
911         int shift_right = (kcontrol->private_value >> 19) & 0x07;
912         int mask = (kcontrol->private_value >> 24) & 0xff;
913         int invert = (kcontrol->private_value >> 22) & 1;
914         int change;
915         unsigned char val1, val2, oval1, oval2;
916         
917         val1 = ucontrol->value.integer.value[0] & mask;
918         val2 = ucontrol->value.integer.value[1] & mask;
919         if (invert) {
920                 val1 = mask - val1;
921                 val2 = mask - val2;
922         }
923         val1 <<= shift_left;
924         val2 <<= shift_right;
925         spin_lock_irqsave(&chip->reg_lock, flags);
926         if (left_reg != right_reg) {
927                 if (left_reg < 0xa0)
928                         oval1 = snd_es1688_mixer_read(chip, left_reg);
929                 else
930                         oval1 = snd_es1688_read(chip, left_reg);
931                 if (right_reg < 0xa0)
932                         oval2 = snd_es1688_mixer_read(chip, right_reg);
933                 else
934                         oval2 = snd_es1688_read(chip, right_reg);
935                 val1 = (oval1 & ~(mask << shift_left)) | val1;
936                 val2 = (oval2 & ~(mask << shift_right)) | val2;
937                 change = val1 != oval1 || val2 != oval2;
938                 if (change) {
939                         if (left_reg < 0xa0)
940                                 snd_es1688_mixer_write(chip, left_reg, val1);
941                         else
942                                 snd_es1688_write(chip, left_reg, val1);
943                         if (right_reg < 0xa0)
944                                 snd_es1688_mixer_write(chip, right_reg, val1);
945                         else
946                                 snd_es1688_write(chip, right_reg, val1);
947                 }
948         } else {
949                 if (left_reg < 0xa0)
950                         oval1 = snd_es1688_mixer_read(chip, left_reg);
951                 else
952                         oval1 = snd_es1688_read(chip, left_reg);
953                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
954                 change = val1 != oval1;
955                 if (change) {
956                         if (left_reg < 0xa0)
957                                 snd_es1688_mixer_write(chip, left_reg, val1);
958                         else
959                                 snd_es1688_write(chip, left_reg, val1);
960                 }
961                         
962         }
963         spin_unlock_irqrestore(&chip->reg_lock, flags);
964         return change;
965 }
966 
967 static struct snd_kcontrol_new snd_es1688_controls[] = {
968 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
969 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
970 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
971 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
972 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
973 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
974 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
975 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
976 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
977 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
978 {
979         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
980         .name = "Capture Source",
981         .info = snd_es1688_info_mux,
982         .get = snd_es1688_get_mux,
983         .put = snd_es1688_put_mux,
984 },
985 };
986 
987 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
988 
989 static unsigned char snd_es1688_init_table[][2] = {
990         { ES1688_MASTER_DEV, 0 },
991         { ES1688_PCM_DEV, 0 },
992         { ES1688_LINE_DEV, 0 },
993         { ES1688_CD_DEV, 0 },
994         { ES1688_FM_DEV, 0 },
995         { ES1688_MIC_DEV, 0 },
996         { ES1688_AUX_DEV, 0 },
997         { ES1688_SPEAKER_DEV, 0 },
998         { ES1688_RECLEV_DEV, 0 },
999         { ES1688_REC_DEV, 0x17 }
1000 };
1001                                         
1002 int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
1003 {
1004         unsigned int idx;
1005         int err;
1006         unsigned char reg, val;
1007 
1008         if (snd_BUG_ON(!chip || !card))
1009                 return -EINVAL;
1010 
1011         strcpy(card->mixername, snd_es1688_chip_id(chip));
1012 
1013         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1014                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1015                         return err;
1016         }
1017         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1018                 reg = snd_es1688_init_table[idx][0];
1019                 val = snd_es1688_init_table[idx][1];
1020                 if (reg < 0xa0)
1021                         snd_es1688_mixer_write(chip, reg, val);
1022                 else
1023                         snd_es1688_write(chip, reg, val);
1024         }
1025         return 0;
1026 }
1027 
1028 EXPORT_SYMBOL(snd_es1688_mixer_write);
1029 EXPORT_SYMBOL(snd_es1688_create);
1030 EXPORT_SYMBOL(snd_es1688_pcm);
1031 EXPORT_SYMBOL(snd_es1688_mixer);
1032 
1033 /*
1034  *  INIT part
1035  */
1036 
1037 static int __init alsa_es1688_init(void)
1038 {
1039         return 0;
1040 }
1041 
1042 static void __exit alsa_es1688_exit(void)
1043 {
1044 }
1045 
1046 module_init(alsa_es1688_init)
1047 module_exit(alsa_es1688_exit)
1048 

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