1816e55c6edf968cb734b573cb30049715fa37ec
[muen/linux.git] / sound / isa / es1688 / es1688_lib.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4  *  Routines for control of ESS ES1688/688/488 chip
5  */
6
7 #include <linux/init.h>
8 #include <linux/interrupt.h>
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <linux/ioport.h>
12 #include <linux/module.h>
13 #include <linux/io.h>
14 #include <sound/core.h>
15 #include <sound/es1688.h>
16 #include <sound/initval.h>
17
18 #include <asm/dma.h>
19
20 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
21 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
22 MODULE_LICENSE("GPL");
23
24 static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
25 {
26         int i;
27
28         for (i = 10000; i; i--)
29                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
30                         outb(val, ES1688P(chip, COMMAND));
31                         return 1;
32                 }
33 #ifdef CONFIG_SND_DEBUG
34         printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
35 #endif
36         return 0;
37 }
38
39 static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
40 {
41         int i;
42
43         for (i = 1000; i; i--)
44                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
45                         return inb(ES1688P(chip, READ));
46         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
47         return -ENODEV;
48 }
49
50 static int snd_es1688_write(struct snd_es1688 *chip,
51                             unsigned char reg, unsigned char data)
52 {
53         if (!snd_es1688_dsp_command(chip, reg))
54                 return 0;
55         return snd_es1688_dsp_command(chip, data);
56 }
57
58 static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
59 {
60         /* Read a byte from an extended mode register of ES1688 */
61         if (!snd_es1688_dsp_command(chip, 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
563 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
564 {
565         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
566
567         chip->playback_substream = NULL;
568         return 0;
569 }
570
571 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
572 {
573         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
574
575         chip->capture_substream = NULL;
576         return 0;
577 }
578
579 static int snd_es1688_free(struct snd_es1688 *chip)
580 {
581         if (chip->hardware != ES1688_HW_UNDEF)
582                 snd_es1688_init(chip, 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
593 static int snd_es1688_dev_free(struct snd_device *device)
594 {
595         struct snd_es1688 *chip = device->device_data;
596         return snd_es1688_free(chip);
597 }
598
599 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
600 {
601         static char tmp[16];
602         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
603         return tmp;
604 }
605
606 int snd_es1688_create(struct snd_card *card,
607                       struct snd_es1688 *chip,
608                       unsigned long port,
609                       unsigned long mpu_port,
610                       int irq,
611                       int mpu_irq,
612                       int dma8,
613                       unsigned short hardware)
614 {
615         static const struct snd_device_ops ops = {
616                 .dev_free =     snd_es1688_dev_free,
617         };
618                                 
619         int err;
620
621         if (chip == NULL)
622                 return -ENOMEM;
623         chip->irq = -1;
624         chip->dma8 = -1;
625         chip->hardware = ES1688_HW_UNDEF;
626         
627         chip->res_port = request_region(port + 4, 12, "ES1688");
628         if (chip->res_port == NULL) {
629                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
630                 err = -EBUSY;
631                 goto exit;
632         }
633
634         err = request_irq(irq, 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
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
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
728 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
729 {
730         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
731         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
732         return 0;
733 }
734
735 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
736 {
737         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
738         unsigned long flags;
739         unsigned char oval, nval;
740         int change;
741         
742         if (ucontrol->value.enumerated.item[0] > 8)
743                 return -EINVAL;
744         spin_lock_irqsave(&chip->reg_lock, flags);
745         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
746         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
747         change = nval != oval;
748         if (change)
749                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, 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
760 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
761 {
762         int mask = (kcontrol->private_value >> 16) & 0xff;
763
764         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
765         uinfo->count = 1;
766         uinfo->value.integer.min = 0;
767         uinfo->value.integer.max = mask;
768         return 0;
769 }
770
771 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
772 {
773         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
774         unsigned long flags;
775         int reg = kcontrol->private_value & 0xff;
776         int shift = (kcontrol->private_value >> 8) & 0xff;
777         int mask = (kcontrol->private_value >> 16) & 0xff;
778         int invert = (kcontrol->private_value >> 24) & 0xff;
779         
780         spin_lock_irqsave(&chip->reg_lock, flags);
781         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
782         spin_unlock_irqrestore(&chip->reg_lock, flags);
783         if (invert)
784                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
785         return 0;
786 }
787
788 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
789 {
790         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
791         unsigned long flags;
792         int reg = kcontrol->private_value & 0xff;
793         int shift = (kcontrol->private_value >> 8) & 0xff;
794         int mask = (kcontrol->private_value >> 16) & 0xff;
795         int invert = (kcontrol->private_value >> 24) & 0xff;
796         int change;
797         unsigned char oval, nval;
798         
799         nval = (ucontrol->value.integer.value[0] & mask);
800         if (invert)
801                 nval = mask - nval;
802         nval <<= shift;
803         spin_lock_irqsave(&chip->reg_lock, flags);
804         oval = snd_es1688_mixer_read(chip, reg);
805         nval = (oval & ~(mask << shift)) | nval;
806         change = nval != oval;
807         if (change)
808                 snd_es1688_mixer_write(chip, reg, 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
819 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
820 {
821         int mask = (kcontrol->private_value >> 24) & 0xff;
822
823         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
824         uinfo->count = 2;
825         uinfo->value.integer.min = 0;
826         uinfo->value.integer.max = mask;
827         return 0;
828 }
829
830 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
831 {
832         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
833         unsigned long flags;
834         int left_reg = kcontrol->private_value & 0xff;
835         int right_reg = (kcontrol->private_value >> 8) & 0xff;
836         int shift_left = (kcontrol->private_value >> 16) & 0x07;
837         int shift_right = (kcontrol->private_value >> 19) & 0x07;
838         int mask = (kcontrol->private_value >> 24) & 0xff;
839         int invert = (kcontrol->private_value >> 22) & 1;
840         unsigned char left, right;
841         
842         spin_lock_irqsave(&chip->reg_lock, flags);
843         if (left_reg < 0xa0)
844                 left = snd_es1688_mixer_read(chip, 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
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                                         
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                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
975                         return err;
976         }
977         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
978                 reg = snd_es1688_init_table[idx][0];
979                 val = snd_es1688_init_table[idx][1];
980                 if (reg < 0xa0)
981                         snd_es1688_mixer_write(chip, reg, val);
982                 else
983                         snd_es1688_write(chip, reg, val);
984         }
985         return 0;
986 }
987
988 EXPORT_SYMBOL(snd_es1688_mixer_write);
989 EXPORT_SYMBOL(snd_es1688_create);
990 EXPORT_SYMBOL(snd_es1688_pcm);
991 EXPORT_SYMBOL(snd_es1688_mixer);