07676200496ae607313354d886378b4f549af4e4
[linux-2.6.git] / sound / isa / es1688 / es1688_lib.c
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 <sound/core.h>
28 #include <sound/es1688.h>
29 #include <sound/initval.h>
30
31 #include <asm/io.h>
32 #include <asm/dma.h>
33
34 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
35 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
36 MODULE_LICENSE("GPL");
37
38 static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
39 {
40         int i;
41
42         for (i = 10000; i; i--)
43                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
44                         outb(val, ES1688P(chip, COMMAND));
45                         return 1;
46                 }
47 #ifdef CONFIG_SND_DEBUG
48         printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
49 #endif
50         return 0;
51 }
52
53 static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
54 {
55         int i;
56
57         for (i = 1000; i; i--)
58                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
59                         return inb(ES1688P(chip, READ));
60         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
61         return -ENODEV;
62 }
63
64 static int snd_es1688_write(struct snd_es1688 *chip,
65                             unsigned char reg, unsigned char data)
66 {
67         if (!snd_es1688_dsp_command(chip, reg))
68                 return 0;
69         return snd_es1688_dsp_command(chip, data);
70 }
71
72 static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
73 {
74         /* Read a byte from an extended mode register of ES1688 */
75         if (!snd_es1688_dsp_command(chip, 0xc0))
76                 return -1;
77         if (!snd_es1688_dsp_command(chip, reg))
78                 return -1;
79         return snd_es1688_dsp_get_byte(chip);
80 }
81
82 void snd_es1688_mixer_write(struct snd_es1688 *chip,
83                             unsigned char reg, unsigned char data)
84 {
85         outb(reg, ES1688P(chip, MIXER_ADDR));
86         udelay(10);
87         outb(data, ES1688P(chip, MIXER_DATA));
88         udelay(10);
89 }
90
91 static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
92 {
93         unsigned char result;
94
95         outb(reg, ES1688P(chip, MIXER_ADDR));
96         udelay(10);
97         result = inb(ES1688P(chip, MIXER_DATA));
98         udelay(10);
99         return result;
100 }
101
102 int snd_es1688_reset(struct snd_es1688 *chip)
103 {
104         int i;
105
106         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
107         udelay(10);
108         outb(0, ES1688P(chip, RESET));
109         udelay(30);
110         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
111         if (inb(ES1688P(chip, READ)) != 0xaa) {
112                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
113                 return -ENODEV;
114         }
115         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
116         return 0;
117 }
118 EXPORT_SYMBOL(snd_es1688_reset);
119
120 static int snd_es1688_probe(struct snd_es1688 *chip)
121 {
122         unsigned long flags;
123         unsigned short major, minor, hw;
124         int i;
125
126         /*
127          *  initialization sequence
128          */
129
130         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
131         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
133         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
134         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
135         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
136         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
137         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
138         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
139         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
140         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
141         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
142
143         if (snd_es1688_reset(chip) < 0) {
144                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
145                 spin_unlock_irqrestore(&chip->reg_lock, flags);
146                 return -ENODEV;
147         }
148         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
149
150         for (i = 1000, major = minor = 0; i; i--) {
151                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
152                         if (major == 0) {
153                                 major = inb(ES1688P(chip, READ));
154                         } else {
155                                 minor = inb(ES1688P(chip, READ));
156                         }
157                 }
158         }
159
160         spin_unlock_irqrestore(&chip->reg_lock, flags);
161
162         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
163
164         chip->version = (major << 8) | minor;
165         if (!chip->version)
166                 return -ENODEV; /* probably SB */
167
168         hw = ES1688_HW_AUTO;
169         switch (chip->version & 0xfff0) {
170         case 0x4880:
171                 snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
172                            "but driver is in another place\n", chip->port);
173                 return -ENODEV;
174         case 0x6880:
175                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
176                 break;
177         default:
178                 snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
179                            "with version 0x%x (Jazz16 soundcard?)\n",
180                            chip->port, chip->version);
181                 return -ENODEV;
182         }
183
184         spin_lock_irqsave(&chip->reg_lock, flags);
185         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
186         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
187         spin_unlock_irqrestore(&chip->reg_lock, flags);
188
189         /* enable joystick, but disable OPL3 */
190         spin_lock_irqsave(&chip->mixer_lock, flags);
191         snd_es1688_mixer_write(chip, 0x40, 0x01);
192         spin_unlock_irqrestore(&chip->mixer_lock, flags);
193
194         return 0;
195 }
196
197 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
198 {
199         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
200         unsigned long flags;
201         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
202
203         /* ok.. setup MPU-401 port and joystick and OPL3 */
204         cfg = 0x01;             /* enable joystick, but disable OPL3 */
205         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
206                 tmp = (chip->mpu_port & 0x0f0) >> 4;
207                 if (tmp <= 3) {
208                         switch (chip->mpu_irq) {
209                         case 9:
210                                 tmp1 = 4;
211                                 break;
212                         case 5:
213                                 tmp1 = 5;
214                                 break;
215                         case 7:
216                                 tmp1 = 6;
217                                 break;
218                         case 10:
219                                 tmp1 = 7;
220                                 break;
221                         default:
222                                 tmp1 = 0;
223                         }
224                         if (tmp1) {
225                                 cfg |= (tmp << 3) | (tmp1 << 5);
226                         }
227                 }
228         }
229 #if 0
230         snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
231 #endif
232         spin_lock_irqsave(&chip->reg_lock, flags);
233         snd_es1688_mixer_write(chip, 0x40, cfg);
234         spin_unlock_irqrestore(&chip->reg_lock, flags);
235         /* --- */
236         spin_lock_irqsave(&chip->reg_lock, flags);
237         snd_es1688_read(chip, 0xb1);
238         snd_es1688_read(chip, 0xb2);
239         spin_unlock_irqrestore(&chip->reg_lock, flags);
240         if (enable) {
241                 cfg = 0xf0;     /* enable only DMA counter interrupt */
242                 irq_bits = irqs[chip->irq & 0x0f];
243                 if (irq_bits < 0) {
244                         snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
245                                    "for ES1688 chip!!\n",
246                                    chip->port, chip->irq);
247 #if 0
248                         irq_bits = 0;
249                         cfg = 0x10;
250 #endif
251                         return -EINVAL;
252                 }
253                 spin_lock_irqsave(&chip->reg_lock, flags);
254                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
255                 spin_unlock_irqrestore(&chip->reg_lock, flags);
256                 cfg = 0xf0;     /* extended mode DMA enable */
257                 dma = chip->dma8;
258                 if (dma > 3 || dma == 2) {
259                         snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
260                                    "for ES1688 chip!!\n", chip->port, dma);
261 #if 0
262                         dma_bits = 0;
263                         cfg = 0x00;     /* disable all DMA */
264 #endif
265                         return -EINVAL;
266                 } else {
267                         dma_bits = dma;
268                         if (dma != 3)
269                                 dma_bits++;
270                 }
271                 spin_lock_irqsave(&chip->reg_lock, flags);
272                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
273                 spin_unlock_irqrestore(&chip->reg_lock, flags);
274         } else {
275                 spin_lock_irqsave(&chip->reg_lock, flags);
276                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
277                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
278                 spin_unlock_irqrestore(&chip->reg_lock, flags);
279         }
280         spin_lock_irqsave(&chip->reg_lock, flags);
281         snd_es1688_read(chip, 0xb1);
282         snd_es1688_read(chip, 0xb2);
283         snd_es1688_reset(chip);
284         spin_unlock_irqrestore(&chip->reg_lock, flags);
285         return 0;
286 }
287
288 /*
289
290  */
291
292 static struct snd_ratnum clocks[2] = {
293         {
294                 .num = 795444,
295                 .den_min = 1,
296                 .den_max = 128,
297                 .den_step = 1,
298         },
299         {
300                 .num = 397722,
301                 .den_min = 1,
302                 .den_max = 128,
303                 .den_step = 1,
304         }
305 };
306
307 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
308         .nrats = 2,
309         .rats = clocks,
310 };
311
312 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
313 {
314         struct snd_pcm_runtime *runtime = substream->runtime;
315         unsigned int bits, divider;
316
317         if (runtime->rate_num == clocks[0].num)
318                 bits = 256 - runtime->rate_den;
319         else
320                 bits = 128 - runtime->rate_den;
321         /* set filter register */
322         divider = 256 - 7160000*20/(8*82*runtime->rate);
323         /* write result to hardware */
324         snd_es1688_write(chip, 0xa1, bits);
325         snd_es1688_write(chip, 0xa2, divider);
326 }
327
328 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
329                             unsigned int cmd, void *arg)
330 {
331         return snd_pcm_lib_ioctl(substream, cmd, arg);
332 }
333
334 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
335 {
336         int val;
337
338         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
339                 value = 0x00;
340         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
341                 return -EINVAL;
342         }
343         spin_lock(&chip->reg_lock);
344         chip->trigger_value = value;
345         val = snd_es1688_read(chip, 0xb8);
346         if ((val < 0) || (val & 0x0f) == value) {
347                 spin_unlock(&chip->reg_lock);
348                 return -EINVAL; /* something is wrong */
349         }
350 #if 0
351         printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
352         printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
353                snd_dma_pointer(chip->dma8, chip->dma_size));
354 #endif
355         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
356         spin_unlock(&chip->reg_lock);
357         return 0;
358 }
359
360 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
361                                 struct snd_pcm_hw_params *hw_params)
362 {
363         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
364 }
365
366 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
367 {
368         return snd_pcm_lib_free_pages(substream);
369 }
370
371 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
372 {
373         unsigned long flags;
374         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
375         struct snd_pcm_runtime *runtime = substream->runtime;
376         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
377         unsigned int count = snd_pcm_lib_period_bytes(substream);
378
379         chip->dma_size = size;
380         spin_lock_irqsave(&chip->reg_lock, flags);
381         snd_es1688_reset(chip);
382         snd_es1688_set_rate(chip, substream);
383         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
384         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
385         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
386         if (runtime->channels == 1) {
387                 if (snd_pcm_format_width(runtime->format) == 8) {
388                         /* 8. bit mono */
389                         snd_es1688_write(chip, 0xb6, 0x80);
390                         snd_es1688_write(chip, 0xb7, 0x51);
391                         snd_es1688_write(chip, 0xb7, 0xd0);
392                 } else {
393                         /* 16. bit mono */
394                         snd_es1688_write(chip, 0xb6, 0x00);
395                         snd_es1688_write(chip, 0xb7, 0x71);
396                         snd_es1688_write(chip, 0xb7, 0xf4);
397                 }
398         } else {
399                 if (snd_pcm_format_width(runtime->format) == 8) {
400                         /* 8. bit stereo */
401                         snd_es1688_write(chip, 0xb6, 0x80);
402                         snd_es1688_write(chip, 0xb7, 0x51);
403                         snd_es1688_write(chip, 0xb7, 0x98);
404                 } else {
405                         /* 16. bit stereo */
406                         snd_es1688_write(chip, 0xb6, 0x00);
407                         snd_es1688_write(chip, 0xb7, 0x71);
408                         snd_es1688_write(chip, 0xb7, 0xbc);
409                 }
410         }
411         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
412         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
413         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
414         spin_unlock_irqrestore(&chip->reg_lock, flags);
415         /* --- */
416         count = -count;
417         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
418         spin_lock_irqsave(&chip->reg_lock, flags);
419         snd_es1688_write(chip, 0xa4, (unsigned char) count);
420         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
421         spin_unlock_irqrestore(&chip->reg_lock, flags);
422         return 0;
423 }
424
425 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
426                                        int cmd)
427 {
428         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
429         return snd_es1688_trigger(chip, cmd, 0x05);
430 }
431
432 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
433 {
434         unsigned long flags;
435         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
436         struct snd_pcm_runtime *runtime = substream->runtime;
437         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
438         unsigned int count = snd_pcm_lib_period_bytes(substream);
439
440         chip->dma_size = size;
441         spin_lock_irqsave(&chip->reg_lock, flags);
442         snd_es1688_reset(chip);
443         snd_es1688_set_rate(chip, substream);
444         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
445         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
446         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
447         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
448         if (runtime->channels == 1) {
449                 if (snd_pcm_format_width(runtime->format) == 8) {
450                         /* 8. bit mono */
451                         snd_es1688_write(chip, 0xb7, 0x51);
452                         snd_es1688_write(chip, 0xb7, 0xd0);
453                 } else {
454                         /* 16. bit mono */
455                         snd_es1688_write(chip, 0xb7, 0x71);
456                         snd_es1688_write(chip, 0xb7, 0xf4);
457                 }
458         } else {
459                 if (snd_pcm_format_width(runtime->format) == 8) {
460                         /* 8. bit stereo */
461                         snd_es1688_write(chip, 0xb7, 0x51);
462                         snd_es1688_write(chip, 0xb7, 0x98);
463                 } else {
464                         /* 16. bit stereo */
465                         snd_es1688_write(chip, 0xb7, 0x71);
466                         snd_es1688_write(chip, 0xb7, 0xbc);
467                 }
468         }
469         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
470         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
471         spin_unlock_irqrestore(&chip->reg_lock, flags);
472         /* --- */
473         count = -count;
474         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
475         spin_lock_irqsave(&chip->reg_lock, flags);
476         snd_es1688_write(chip, 0xa4, (unsigned char) count);
477         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
478         spin_unlock_irqrestore(&chip->reg_lock, flags);
479         return 0;
480 }
481
482 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
483                                       int cmd)
484 {
485         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
486         return snd_es1688_trigger(chip, cmd, 0x0f);
487 }
488
489 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
490 {
491         struct snd_es1688 *chip = dev_id;
492
493         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
494                 snd_pcm_period_elapsed(chip->playback_substream);
495         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
496                 snd_pcm_period_elapsed(chip->capture_substream);
497
498         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
499         return IRQ_HANDLED;
500 }
501
502 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
503 {
504         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
505         size_t ptr;
506         
507         if (chip->trigger_value != 0x05)
508                 return 0;
509         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
510         return bytes_to_frames(substream->runtime, ptr);
511 }
512
513 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
514 {
515         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
516         size_t ptr;
517         
518         if (chip->trigger_value != 0x0f)
519                 return 0;
520         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
521         return bytes_to_frames(substream->runtime, ptr);
522 }
523
524 /*
525
526  */
527
528 static struct snd_pcm_hardware snd_es1688_playback =
529 {
530         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
531                                  SNDRV_PCM_INFO_MMAP_VALID),
532         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
533         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
534         .rate_min =             4000,
535         .rate_max =             48000,
536         .channels_min =         1,
537         .channels_max =         2,
538         .buffer_bytes_max =     65536,
539         .period_bytes_min =     64,
540         .period_bytes_max =     65536,
541         .periods_min =          1,
542         .periods_max =          1024,
543         .fifo_size =            0,
544 };
545
546 static struct snd_pcm_hardware snd_es1688_capture =
547 {
548         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
549                                  SNDRV_PCM_INFO_MMAP_VALID),
550         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
551         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
552         .rate_min =             4000,
553         .rate_max =             48000,
554         .channels_min =         1,
555         .channels_max =         2,
556         .buffer_bytes_max =     65536,
557         .period_bytes_min =     64,
558         .period_bytes_max =     65536,
559         .periods_min =          1,
560         .periods_max =          1024,
561         .fifo_size =            0,
562 };
563
564 /*
565
566  */
567
568 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
569 {
570         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
571         struct snd_pcm_runtime *runtime = substream->runtime;
572
573         if (chip->capture_substream != NULL)
574                 return -EAGAIN;
575         chip->playback_substream = substream;
576         runtime->hw = snd_es1688_playback;
577         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
578                                       &hw_constraints_clocks);
579         return 0;
580 }
581
582 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
583 {
584         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
585         struct snd_pcm_runtime *runtime = substream->runtime;
586
587         if (chip->playback_substream != NULL)
588                 return -EAGAIN;
589         chip->capture_substream = substream;
590         runtime->hw = snd_es1688_capture;
591         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
592                                       &hw_constraints_clocks);
593         return 0;
594 }
595
596 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
597 {
598         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
599
600         chip->playback_substream = NULL;
601         return 0;
602 }
603
604 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
605 {
606         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
607
608         chip->capture_substream = NULL;
609         return 0;
610 }
611
612 static int snd_es1688_free(struct snd_es1688 *chip)
613 {
614         if (chip->res_port) {
615                 snd_es1688_init(chip, 0);
616                 release_and_free_resource(chip->res_port);
617         }
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         
660         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
661                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
662                 return -EBUSY;
663         }
664         if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
665                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
666                 return -EBUSY;
667         }
668         chip->irq = irq;
669         if (request_dma(dma8, "ES1688")) {
670                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
671                 return -EBUSY;
672         }
673         chip->dma8 = dma8;
674
675         spin_lock_init(&chip->reg_lock);
676         spin_lock_init(&chip->mixer_lock);
677         chip->port = port;
678         mpu_port &= ~0x000f;
679         if (mpu_port < 0x300 || mpu_port > 0x330)
680                 mpu_port = 0;
681         chip->mpu_port = mpu_port;
682         chip->mpu_irq = mpu_irq;
683         chip->hardware = hardware;
684
685         err = snd_es1688_probe(chip);
686         if (err < 0)
687                 return err;
688
689         err = snd_es1688_init(chip, 1);
690         if (err < 0)
691                 return err;
692
693         /* Register device */
694         return snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
695 }
696
697 static struct snd_pcm_ops snd_es1688_playback_ops = {
698         .open =                 snd_es1688_playback_open,
699         .close =                snd_es1688_playback_close,
700         .ioctl =                snd_es1688_ioctl,
701         .hw_params =            snd_es1688_hw_params,
702         .hw_free =              snd_es1688_hw_free,
703         .prepare =              snd_es1688_playback_prepare,
704         .trigger =              snd_es1688_playback_trigger,
705         .pointer =              snd_es1688_playback_pointer,
706 };
707
708 static struct snd_pcm_ops snd_es1688_capture_ops = {
709         .open =                 snd_es1688_capture_open,
710         .close =                snd_es1688_capture_close,
711         .ioctl =                snd_es1688_ioctl,
712         .hw_params =            snd_es1688_hw_params,
713         .hw_free =              snd_es1688_hw_free,
714         .prepare =              snd_es1688_capture_prepare,
715         .trigger =              snd_es1688_capture_trigger,
716         .pointer =              snd_es1688_capture_pointer,
717 };
718
719 int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip,
720                    int device, struct snd_pcm **rpcm)
721 {
722         struct snd_pcm *pcm;
723         int err;
724
725         err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
726         if (err < 0)
727                 return err;
728
729         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
730         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
731
732         pcm->private_data = chip;
733         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
734         sprintf(pcm->name, snd_es1688_chip_id(chip));
735         chip->pcm = pcm;
736
737         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
738                                               snd_dma_isa_data(),
739                                               64*1024, 64*1024);
740
741         if (rpcm)
742                 *rpcm = pcm;
743         return 0;
744 }
745
746 /*
747  *  MIXER part
748  */
749
750 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
751 {
752         static char *texts[9] = {
753                 "Mic", "Mic Master", "CD", "AOUT",
754                 "Mic1", "Mix", "Line", "Master"
755         };
756
757         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
758         uinfo->count = 1;
759         uinfo->value.enumerated.items = 8;
760         if (uinfo->value.enumerated.item > 7)
761                 uinfo->value.enumerated.item = 7;
762         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
763         return 0;
764 }
765
766 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
767 {
768         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
769         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
770         return 0;
771 }
772
773 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
774 {
775         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
776         unsigned long flags;
777         unsigned char oval, nval;
778         int change;
779         
780         if (ucontrol->value.enumerated.item[0] > 8)
781                 return -EINVAL;
782         spin_lock_irqsave(&chip->reg_lock, flags);
783         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
784         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
785         change = nval != oval;
786         if (change)
787                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
788         spin_unlock_irqrestore(&chip->reg_lock, flags);
789         return change;
790 }
791
792 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
793 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
794   .info = snd_es1688_info_single, \
795   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
796   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
797
798 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
799 {
800         int mask = (kcontrol->private_value >> 16) & 0xff;
801
802         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
803         uinfo->count = 1;
804         uinfo->value.integer.min = 0;
805         uinfo->value.integer.max = mask;
806         return 0;
807 }
808
809 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
810 {
811         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
812         unsigned long flags;
813         int reg = kcontrol->private_value & 0xff;
814         int shift = (kcontrol->private_value >> 8) & 0xff;
815         int mask = (kcontrol->private_value >> 16) & 0xff;
816         int invert = (kcontrol->private_value >> 24) & 0xff;
817         
818         spin_lock_irqsave(&chip->reg_lock, flags);
819         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
820         spin_unlock_irqrestore(&chip->reg_lock, flags);
821         if (invert)
822                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
823         return 0;
824 }
825
826 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
827 {
828         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
829         unsigned long flags;
830         int reg = kcontrol->private_value & 0xff;
831         int shift = (kcontrol->private_value >> 8) & 0xff;
832         int mask = (kcontrol->private_value >> 16) & 0xff;
833         int invert = (kcontrol->private_value >> 24) & 0xff;
834         int change;
835         unsigned char oval, nval;
836         
837         nval = (ucontrol->value.integer.value[0] & mask);
838         if (invert)
839                 nval = mask - nval;
840         nval <<= shift;
841         spin_lock_irqsave(&chip->reg_lock, flags);
842         oval = snd_es1688_mixer_read(chip, reg);
843         nval = (oval & ~(mask << shift)) | nval;
844         change = nval != oval;
845         if (change)
846                 snd_es1688_mixer_write(chip, reg, nval);
847         spin_unlock_irqrestore(&chip->reg_lock, flags);
848         return change;
849 }
850
851 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
852 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
853   .info = snd_es1688_info_double, \
854   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
855   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
856
857 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
858 {
859         int mask = (kcontrol->private_value >> 24) & 0xff;
860
861         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
862         uinfo->count = 2;
863         uinfo->value.integer.min = 0;
864         uinfo->value.integer.max = mask;
865         return 0;
866 }
867
868 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
869 {
870         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
871         unsigned long flags;
872         int left_reg = kcontrol->private_value & 0xff;
873         int right_reg = (kcontrol->private_value >> 8) & 0xff;
874         int shift_left = (kcontrol->private_value >> 16) & 0x07;
875         int shift_right = (kcontrol->private_value >> 19) & 0x07;
876         int mask = (kcontrol->private_value >> 24) & 0xff;
877         int invert = (kcontrol->private_value >> 22) & 1;
878         unsigned char left, right;
879         
880         spin_lock_irqsave(&chip->reg_lock, flags);
881         if (left_reg < 0xa0)
882                 left = snd_es1688_mixer_read(chip, left_reg);
883         else
884                 left = snd_es1688_read(chip, left_reg);
885         if (left_reg != right_reg) {
886                 if (right_reg < 0xa0) 
887                         right = snd_es1688_mixer_read(chip, right_reg);
888                 else
889                         right = snd_es1688_read(chip, right_reg);
890         } else
891                 right = left;
892         spin_unlock_irqrestore(&chip->reg_lock, flags);
893         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
894         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
895         if (invert) {
896                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
897                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
898         }
899         return 0;
900 }
901
902 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
903 {
904         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
905         unsigned long flags;
906         int left_reg = kcontrol->private_value & 0xff;
907         int right_reg = (kcontrol->private_value >> 8) & 0xff;
908         int shift_left = (kcontrol->private_value >> 16) & 0x07;
909         int shift_right = (kcontrol->private_value >> 19) & 0x07;
910         int mask = (kcontrol->private_value >> 24) & 0xff;
911         int invert = (kcontrol->private_value >> 22) & 1;
912         int change;
913         unsigned char val1, val2, oval1, oval2;
914         
915         val1 = ucontrol->value.integer.value[0] & mask;
916         val2 = ucontrol->value.integer.value[1] & mask;
917         if (invert) {
918                 val1 = mask - val1;
919                 val2 = mask - val2;
920         }
921         val1 <<= shift_left;
922         val2 <<= shift_right;
923         spin_lock_irqsave(&chip->reg_lock, flags);
924         if (left_reg != right_reg) {
925                 if (left_reg < 0xa0)
926                         oval1 = snd_es1688_mixer_read(chip, left_reg);
927                 else
928                         oval1 = snd_es1688_read(chip, left_reg);
929                 if (right_reg < 0xa0)
930                         oval2 = snd_es1688_mixer_read(chip, right_reg);
931                 else
932                         oval2 = snd_es1688_read(chip, right_reg);
933                 val1 = (oval1 & ~(mask << shift_left)) | val1;
934                 val2 = (oval2 & ~(mask << shift_right)) | val2;
935                 change = val1 != oval1 || val2 != oval2;
936                 if (change) {
937                         if (left_reg < 0xa0)
938                                 snd_es1688_mixer_write(chip, left_reg, val1);
939                         else
940                                 snd_es1688_write(chip, left_reg, val1);
941                         if (right_reg < 0xa0)
942                                 snd_es1688_mixer_write(chip, right_reg, val1);
943                         else
944                                 snd_es1688_write(chip, right_reg, val1);
945                 }
946         } else {
947                 if (left_reg < 0xa0)
948                         oval1 = snd_es1688_mixer_read(chip, left_reg);
949                 else
950                         oval1 = snd_es1688_read(chip, left_reg);
951                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
952                 change = val1 != oval1;
953                 if (change) {
954                         if (left_reg < 0xa0)
955                                 snd_es1688_mixer_write(chip, left_reg, val1);
956                         else
957                                 snd_es1688_write(chip, left_reg, val1);
958                 }
959                         
960         }
961         spin_unlock_irqrestore(&chip->reg_lock, flags);
962         return change;
963 }
964
965 static struct snd_kcontrol_new snd_es1688_controls[] = {
966 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
967 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
968 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
969 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
970 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
971 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
972 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
973 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
974 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
975 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
976 {
977         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
978         .name = "Capture Source",
979         .info = snd_es1688_info_mux,
980         .get = snd_es1688_get_mux,
981         .put = snd_es1688_put_mux,
982 },
983 };
984
985 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
986
987 static unsigned char snd_es1688_init_table[][2] = {
988         { ES1688_MASTER_DEV, 0 },
989         { ES1688_PCM_DEV, 0 },
990         { ES1688_LINE_DEV, 0 },
991         { ES1688_CD_DEV, 0 },
992         { ES1688_FM_DEV, 0 },
993         { ES1688_MIC_DEV, 0 },
994         { ES1688_AUX_DEV, 0 },
995         { ES1688_SPEAKER_DEV, 0 },
996         { ES1688_RECLEV_DEV, 0 },
997         { ES1688_REC_DEV, 0x17 }
998 };
999                                         
1000 int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
1001 {
1002         unsigned int idx;
1003         int err;
1004         unsigned char reg, val;
1005
1006         if (snd_BUG_ON(!chip || !card))
1007                 return -EINVAL;
1008
1009         strcpy(card->mixername, snd_es1688_chip_id(chip));
1010
1011         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1012                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1013                         return err;
1014         }
1015         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1016                 reg = snd_es1688_init_table[idx][0];
1017                 val = snd_es1688_init_table[idx][1];
1018                 if (reg < 0xa0)
1019                         snd_es1688_mixer_write(chip, reg, val);
1020                 else
1021                         snd_es1688_write(chip, reg, val);
1022         }
1023         return 0;
1024 }
1025
1026 EXPORT_SYMBOL(snd_es1688_mixer_write);
1027 EXPORT_SYMBOL(snd_es1688_create);
1028 EXPORT_SYMBOL(snd_es1688_pcm);
1029 EXPORT_SYMBOL(snd_es1688_mixer);
1030
1031 /*
1032  *  INIT part
1033  */
1034
1035 static int __init alsa_es1688_init(void)
1036 {
1037         return 0;
1038 }
1039
1040 static void __exit alsa_es1688_exit(void)
1041 {
1042 }
1043
1044 module_init(alsa_es1688_init)
1045 module_exit(alsa_es1688_exit)