2 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
3 * Takashi Iwai <tiwai@suse.de>
5 * SB16ASP/AWE32 CSP control
7 * CSP microcode loader:
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <sound/driver.h>
27 #include <linux/delay.h>
28 #include <linux/init.h>
29 #include <linux/slab.h>
30 #include <sound/core.h>
31 #include <sound/control.h>
32 #include <sound/info.h>
33 #include <sound/sb16_csp.h>
34 #include <sound/initval.h>
36 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
37 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
38 MODULE_LICENSE("GPL");
40 #ifdef SNDRV_LITTLE_ENDIAN
41 #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
43 #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
46 #define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F')
47 #define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ')
48 #define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T')
49 #define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c')
50 #define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e')
51 #define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't')
52 #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n')
63 struct riff_header info
;
67 __u16 flags_16bit_8bit
;
68 __u16 flags_stereo_mono
;
75 static void snd_sb_csp_free(snd_hwdep_t
*hw
);
76 static int snd_sb_csp_open(snd_hwdep_t
* hw
, struct file
*file
);
77 static int snd_sb_csp_ioctl(snd_hwdep_t
* hw
, struct file
*file
, unsigned int cmd
, unsigned long arg
);
78 static int snd_sb_csp_release(snd_hwdep_t
* hw
, struct file
*file
);
80 static int csp_detect(sb_t
*chip
, int *version
);
81 static int set_codec_parameter(sb_t
*chip
, unsigned char par
, unsigned char val
);
82 static int set_register(sb_t
*chip
, unsigned char reg
, unsigned char val
);
83 static int read_register(sb_t
*chip
, unsigned char reg
);
84 static int set_mode_register(sb_t
*chip
, unsigned char mode
);
85 static int get_version(sb_t
*chip
);
87 static int snd_sb_csp_riff_load(snd_sb_csp_t
* p
, snd_sb_csp_microcode_t __user
* code
);
88 static int snd_sb_csp_unload(snd_sb_csp_t
* p
);
89 static int snd_sb_csp_load_user(snd_sb_csp_t
* p
, const unsigned char __user
*buf
, int size
, int load_flags
);
90 static int snd_sb_csp_autoload(snd_sb_csp_t
* p
, int pcm_sfmt
, int play_rec_mode
);
91 static int snd_sb_csp_check_version(snd_sb_csp_t
* p
);
93 static int snd_sb_csp_use(snd_sb_csp_t
* p
);
94 static int snd_sb_csp_unuse(snd_sb_csp_t
* p
);
95 static int snd_sb_csp_start(snd_sb_csp_t
* p
, int sample_width
, int channels
);
96 static int snd_sb_csp_stop(snd_sb_csp_t
* p
);
97 static int snd_sb_csp_pause(snd_sb_csp_t
* p
);
98 static int snd_sb_csp_restart(snd_sb_csp_t
* p
);
100 static int snd_sb_qsound_build(snd_sb_csp_t
* p
);
101 static void snd_sb_qsound_destroy(snd_sb_csp_t
* p
);
102 static int snd_sb_csp_qsound_transfer(snd_sb_csp_t
* p
);
104 static int init_proc_entry(snd_sb_csp_t
* p
, int device
);
105 static void info_read(snd_info_entry_t
*entry
, snd_info_buffer_t
* buffer
);
108 * Detect CSP chip and create a new instance
110 int snd_sb_csp_new(sb_t
*chip
, int device
, snd_hwdep_t
** rhwdep
)
119 if (csp_detect(chip
, &version
))
122 if ((err
= snd_hwdep_new(chip
->card
, "SB16-CSP", device
, &hw
)) < 0)
125 if ((p
= kzalloc(sizeof(*p
), GFP_KERNEL
)) == NULL
) {
126 snd_device_free(chip
->card
, hw
);
130 p
->version
= version
;
133 p
->ops
.csp_use
= snd_sb_csp_use
;
134 p
->ops
.csp_unuse
= snd_sb_csp_unuse
;
135 p
->ops
.csp_autoload
= snd_sb_csp_autoload
;
136 p
->ops
.csp_start
= snd_sb_csp_start
;
137 p
->ops
.csp_stop
= snd_sb_csp_stop
;
138 p
->ops
.csp_qsound_transfer
= snd_sb_csp_qsound_transfer
;
140 init_MUTEX(&p
->access_mutex
);
141 sprintf(hw
->name
, "CSP v%d.%d", (version
>> 4), (version
& 0x0f));
142 hw
->iface
= SNDRV_HWDEP_IFACE_SB16CSP
;
143 hw
->private_data
= p
;
144 hw
->private_free
= snd_sb_csp_free
;
146 /* operators - only write/ioctl */
147 hw
->ops
.open
= snd_sb_csp_open
;
148 hw
->ops
.ioctl
= snd_sb_csp_ioctl
;
149 hw
->ops
.release
= snd_sb_csp_release
;
151 /* create a proc entry */
152 init_proc_entry(p
, device
);
159 * free_private for hwdep instance
161 static void snd_sb_csp_free(snd_hwdep_t
*hwdep
)
163 snd_sb_csp_t
*p
= hwdep
->private_data
;
165 if (p
->running
& SNDRV_SB_CSP_ST_RUNNING
)
171 /* ------------------------------ */
174 * open the device exclusively
176 static int snd_sb_csp_open(snd_hwdep_t
* hw
, struct file
*file
)
178 snd_sb_csp_t
*p
= hw
->private_data
;
179 return (snd_sb_csp_use(p
));
183 * ioctl for hwdep device:
185 static int snd_sb_csp_ioctl(snd_hwdep_t
* hw
, struct file
*file
, unsigned int cmd
, unsigned long arg
)
187 snd_sb_csp_t
*p
= hw
->private_data
;
188 snd_sb_csp_info_t info
;
189 snd_sb_csp_start_t start_info
;
192 snd_assert(p
!= NULL
, return -EINVAL
);
194 if (snd_sb_csp_check_version(p
))
198 /* get information */
199 case SNDRV_SB_CSP_IOCTL_INFO
:
200 *info
.codec_name
= *p
->codec_name
;
201 info
.func_nr
= p
->func_nr
;
202 info
.acc_format
= p
->acc_format
;
203 info
.acc_channels
= p
->acc_channels
;
204 info
.acc_width
= p
->acc_width
;
205 info
.acc_rates
= p
->acc_rates
;
206 info
.csp_mode
= p
->mode
;
207 info
.run_channels
= p
->run_channels
;
208 info
.run_width
= p
->run_width
;
209 info
.version
= p
->version
;
210 info
.state
= p
->running
;
211 if (copy_to_user((void __user
*)arg
, &info
, sizeof(info
)))
217 /* load CSP microcode */
218 case SNDRV_SB_CSP_IOCTL_LOAD_CODE
:
219 err
= (p
->running
& SNDRV_SB_CSP_ST_RUNNING
?
220 -EBUSY
: snd_sb_csp_riff_load(p
, (snd_sb_csp_microcode_t __user
*) arg
));
222 case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE
:
223 err
= (p
->running
& SNDRV_SB_CSP_ST_RUNNING
?
224 -EBUSY
: snd_sb_csp_unload(p
));
227 /* change CSP running state */
228 case SNDRV_SB_CSP_IOCTL_START
:
229 if (copy_from_user(&start_info
, (void __user
*) arg
, sizeof(start_info
)))
232 err
= snd_sb_csp_start(p
, start_info
.sample_width
, start_info
.channels
);
234 case SNDRV_SB_CSP_IOCTL_STOP
:
235 err
= snd_sb_csp_stop(p
);
237 case SNDRV_SB_CSP_IOCTL_PAUSE
:
238 err
= snd_sb_csp_pause(p
);
240 case SNDRV_SB_CSP_IOCTL_RESTART
:
241 err
= snd_sb_csp_restart(p
);
254 static int snd_sb_csp_release(snd_hwdep_t
* hw
, struct file
*file
)
256 snd_sb_csp_t
*p
= hw
->private_data
;
257 return (snd_sb_csp_unuse(p
));
260 /* ------------------------------ */
265 static int snd_sb_csp_use(snd_sb_csp_t
* p
)
267 down(&p
->access_mutex
);
269 up(&p
->access_mutex
);
273 up(&p
->access_mutex
);
282 static int snd_sb_csp_unuse(snd_sb_csp_t
* p
)
284 down(&p
->access_mutex
);
286 up(&p
->access_mutex
);
292 * load microcode via ioctl:
293 * code is user-space pointer
295 static int snd_sb_csp_riff_load(snd_sb_csp_t
* p
, snd_sb_csp_microcode_t __user
* mcode
)
297 snd_sb_csp_mc_header_t info
;
299 unsigned char __user
*data_ptr
;
300 unsigned char __user
*data_end
;
301 unsigned short func_nr
= 0;
303 struct riff_header file_h
, item_h
, code_h
;
305 struct desc_header funcdesc_h
;
310 if (copy_from_user(&info
, mcode
, sizeof(info
)))
312 data_ptr
= mcode
->data
;
314 if (copy_from_user(&file_h
, data_ptr
, sizeof(file_h
)))
316 if ((file_h
.name
!= RIFF_HEADER
) ||
317 (le32_to_cpu(file_h
.len
) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE
- sizeof(file_h
))) {
318 snd_printd("%s: Invalid RIFF header\n", __FUNCTION__
);
321 data_ptr
+= sizeof(file_h
);
322 data_end
= data_ptr
+ le32_to_cpu(file_h
.len
);
324 if (copy_from_user(&item_type
, data_ptr
, sizeof(item_type
)))
326 if (item_type
!= CSP__HEADER
) {
327 snd_printd("%s: Invalid RIFF file type\n", __FUNCTION__
);
330 data_ptr
+= sizeof (item_type
);
332 for (; data_ptr
< data_end
; data_ptr
+= le32_to_cpu(item_h
.len
)) {
333 if (copy_from_user(&item_h
, data_ptr
, sizeof(item_h
)))
335 data_ptr
+= sizeof(item_h
);
336 if (item_h
.name
!= LIST_HEADER
)
339 if (copy_from_user(&item_type
, data_ptr
, sizeof(item_type
)))
343 if (copy_from_user(&funcdesc_h
, data_ptr
+ sizeof(item_type
), sizeof(funcdesc_h
)))
345 func_nr
= le16_to_cpu(funcdesc_h
.func_nr
);
348 if (func_nr
!= info
.func_req
)
349 break; /* not required function, try next */
350 data_ptr
+= sizeof(item_type
);
352 /* destroy QSound mixer element */
353 if (p
->mode
== SNDRV_SB_CSP_MODE_QSOUND
) {
354 snd_sb_qsound_destroy(p
);
356 /* Clear all flags */
360 /* load microcode blocks */
362 if (data_ptr
>= data_end
)
364 if (copy_from_user(&code_h
, data_ptr
, sizeof(code_h
)))
367 /* init microcode blocks */
368 if (code_h
.name
!= INIT_HEADER
)
370 data_ptr
+= sizeof(code_h
);
371 err
= snd_sb_csp_load_user(p
, data_ptr
, le32_to_cpu(code_h
.len
),
372 SNDRV_SB_CSP_LOAD_INITBLOCK
);
375 data_ptr
+= le32_to_cpu(code_h
.len
);
377 /* main microcode block */
378 if (copy_from_user(&code_h
, data_ptr
, sizeof(code_h
)))
381 if (code_h
.name
!= MAIN_HEADER
) {
382 snd_printd("%s: Missing 'main' microcode\n", __FUNCTION__
);
385 data_ptr
+= sizeof(code_h
);
386 err
= snd_sb_csp_load_user(p
, data_ptr
,
387 le32_to_cpu(code_h
.len
), 0);
391 /* fill in codec header */
392 strlcpy(p
->codec_name
, info
.codec_name
, sizeof(p
->codec_name
));
393 p
->func_nr
= func_nr
;
394 p
->mode
= le16_to_cpu(funcdesc_h
.flags_play_rec
);
395 switch (le16_to_cpu(funcdesc_h
.VOC_type
)) {
396 case 0x0001: /* QSound decoder */
397 if (le16_to_cpu(funcdesc_h
.flags_play_rec
) == SNDRV_SB_CSP_MODE_DSP_WRITE
) {
398 if (snd_sb_qsound_build(p
) == 0)
399 /* set QSound flag and clear all other mode flags */
400 p
->mode
= SNDRV_SB_CSP_MODE_QSOUND
;
404 case 0x0006: /* A Law codec */
405 p
->acc_format
= SNDRV_PCM_FMTBIT_A_LAW
;
407 case 0x0007: /* Mu Law codec */
408 p
->acc_format
= SNDRV_PCM_FMTBIT_MU_LAW
;
410 case 0x0011: /* what Creative thinks is IMA ADPCM codec */
411 case 0x0200: /* Creative ADPCM codec */
412 p
->acc_format
= SNDRV_PCM_FMTBIT_IMA_ADPCM
;
414 case 201: /* Text 2 Speech decoder */
415 /* TODO: Text2Speech handling routines */
418 case 0x0202: /* Fast Speech 8 codec */
419 case 0x0203: /* Fast Speech 10 codec */
420 p
->acc_format
= SNDRV_PCM_FMTBIT_SPECIAL
;
422 default: /* other codecs are unsupported */
423 p
->acc_format
= p
->acc_width
= p
->acc_rates
= 0;
425 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
427 le16_to_cpu(funcdesc_h
.VOC_type
));
430 p
->acc_channels
= le16_to_cpu(funcdesc_h
.flags_stereo_mono
);
431 p
->acc_width
= le16_to_cpu(funcdesc_h
.flags_16bit_8bit
);
432 p
->acc_rates
= le16_to_cpu(funcdesc_h
.flags_rates
);
434 /* Decouple CSP from IRQ and DMAREQ lines */
435 spin_lock_irqsave(&p
->chip
->reg_lock
, flags
);
436 set_mode_register(p
->chip
, 0xfc);
437 set_mode_register(p
->chip
, 0x00);
438 spin_unlock_irqrestore(&p
->chip
->reg_lock
, flags
);
440 /* finished loading successfully */
441 p
->running
= SNDRV_SB_CSP_ST_LOADED
; /* set LOADED flag */
445 snd_printd("%s: Function #%d not found\n", __FUNCTION__
, info
.func_req
);
450 * unload CSP microcode
452 static int snd_sb_csp_unload(snd_sb_csp_t
* p
)
454 if (p
->running
& SNDRV_SB_CSP_ST_RUNNING
)
456 if (!(p
->running
& SNDRV_SB_CSP_ST_LOADED
))
459 /* clear supported formats */
461 p
->acc_channels
= p
->acc_width
= p
->acc_rates
= 0;
462 /* destroy QSound mixer element */
463 if (p
->mode
== SNDRV_SB_CSP_MODE_QSOUND
) {
464 snd_sb_qsound_destroy(p
);
466 /* clear all flags */
473 * send command sequence to DSP
475 static inline int command_seq(sb_t
*chip
, const unsigned char *seq
, int size
)
478 for (i
= 0; i
< size
; i
++) {
479 if (!snd_sbdsp_command(chip
, seq
[i
]))
486 * set CSP codec parameter
488 static int set_codec_parameter(sb_t
*chip
, unsigned char par
, unsigned char val
)
490 unsigned char dsp_cmd
[3];
492 dsp_cmd
[0] = 0x05; /* CSP set codec parameter */
493 dsp_cmd
[1] = val
; /* Parameter value */
494 dsp_cmd
[2] = par
; /* Parameter */
495 command_seq(chip
, dsp_cmd
, 3);
496 snd_sbdsp_command(chip
, 0x03); /* DSP read? */
497 if (snd_sbdsp_get_byte(chip
) != par
)
505 static int set_register(sb_t
*chip
, unsigned char reg
, unsigned char val
)
507 unsigned char dsp_cmd
[3];
509 dsp_cmd
[0] = 0x0e; /* CSP set register */
510 dsp_cmd
[1] = reg
; /* CSP Register */
511 dsp_cmd
[2] = val
; /* value */
512 return command_seq(chip
, dsp_cmd
, 3);
517 * return < 0 -> error
519 static int read_register(sb_t
*chip
, unsigned char reg
)
521 unsigned char dsp_cmd
[2];
523 dsp_cmd
[0] = 0x0f; /* CSP read register */
524 dsp_cmd
[1] = reg
; /* CSP Register */
525 command_seq(chip
, dsp_cmd
, 2);
526 return snd_sbdsp_get_byte(chip
); /* Read DSP value */
530 * set CSP mode register
532 static int set_mode_register(sb_t
*chip
, unsigned char mode
)
534 unsigned char dsp_cmd
[2];
536 dsp_cmd
[0] = 0x04; /* CSP set mode register */
537 dsp_cmd
[1] = mode
; /* mode */
538 return command_seq(chip
, dsp_cmd
, 2);
543 * return 0 if CSP exists.
545 static int csp_detect(sb_t
*chip
, int *version
)
547 unsigned char csp_test1
, csp_test2
;
549 int result
= -ENODEV
;
551 spin_lock_irqsave(&chip
->reg_lock
, flags
);
553 set_codec_parameter(chip
, 0x00, 0x00);
554 set_mode_register(chip
, 0xfc); /* 0xfc = ?? */
556 csp_test1
= read_register(chip
, 0x83);
557 set_register(chip
, 0x83, ~csp_test1
);
558 csp_test2
= read_register(chip
, 0x83);
559 if (csp_test2
!= (csp_test1
^ 0xff))
562 set_register(chip
, 0x83, csp_test1
);
563 csp_test2
= read_register(chip
, 0x83);
564 if (csp_test2
!= csp_test1
)
567 set_mode_register(chip
, 0x00); /* 0x00 = ? */
569 *version
= get_version(chip
);
570 snd_sbdsp_reset(chip
); /* reset DSP after getversion! */
571 if (*version
>= 0x10 && *version
<= 0x1f)
572 result
= 0; /* valid version id */
575 spin_unlock_irqrestore(&chip
->reg_lock
, flags
);
580 * get CSP version number
582 static int get_version(sb_t
*chip
)
584 unsigned char dsp_cmd
[2];
586 dsp_cmd
[0] = 0x08; /* SB_DSP_!something! */
587 dsp_cmd
[1] = 0x03; /* get chip version id? */
588 command_seq(chip
, dsp_cmd
, 2);
590 return (snd_sbdsp_get_byte(chip
));
594 * check if the CSP version is valid
596 static int snd_sb_csp_check_version(snd_sb_csp_t
* p
)
598 if (p
->version
< 0x10 || p
->version
> 0x1f) {
599 snd_printd("%s: Invalid CSP version: 0x%x\n", __FUNCTION__
, p
->version
);
606 * download microcode to CSP (microcode should have one "main" block).
608 static int snd_sb_csp_load(snd_sb_csp_t
* p
, const unsigned char *buf
, int size
, int load_flags
)
615 spin_lock_irqsave(&p
->chip
->reg_lock
, flags
);
616 snd_sbdsp_command(p
->chip
, 0x01); /* CSP download command */
617 if (snd_sbdsp_get_byte(p
->chip
)) {
618 snd_printd("%s: Download command failed\n", __FUNCTION__
);
621 /* Send CSP low byte (size - 1) */
622 snd_sbdsp_command(p
->chip
, (unsigned char)(size
- 1));
624 snd_sbdsp_command(p
->chip
, (unsigned char)((size
- 1) >> 8));
625 /* send microcode sequence */
626 /* load from kernel space */
628 if (!snd_sbdsp_command(p
->chip
, *buf
++))
631 if (snd_sbdsp_get_byte(p
->chip
))
634 if (load_flags
& SNDRV_SB_CSP_LOAD_INITBLOCK
) {
636 /* some codecs (FastSpeech) take some time to initialize */
638 snd_sbdsp_command(p
->chip
, 0x03);
639 status
= snd_sbdsp_get_byte(p
->chip
);
640 if (status
== 0x55 || ++i
>= 10)
644 if (status
!= 0x55) {
645 snd_printd("%s: Microcode initialization failed\n", __FUNCTION__
);
650 * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
651 * Start CSP chip if no 16bit DMA channel is set - some kind
652 * of autorun or perhaps a bugfix?
654 spin_lock(&p
->chip
->mixer_lock
);
655 status
= snd_sbmixer_read(p
->chip
, SB_DSP4_DMASETUP
);
656 spin_unlock(&p
->chip
->mixer_lock
);
657 if (!(status
& (SB_DMASETUP_DMA7
| SB_DMASETUP_DMA6
| SB_DMASETUP_DMA5
))) {
658 err
= (set_codec_parameter(p
->chip
, 0xaa, 0x00) ||
659 set_codec_parameter(p
->chip
, 0xff, 0x00));
660 snd_sbdsp_reset(p
->chip
); /* really! */
663 set_mode_register(p
->chip
, 0xc0); /* c0 = STOP */
664 set_mode_register(p
->chip
, 0x70); /* 70 = RUN */
670 spin_unlock_irqrestore(&p
->chip
->reg_lock
, flags
);
674 static int snd_sb_csp_load_user(snd_sb_csp_t
* p
, const unsigned char __user
*buf
, int size
, int load_flags
)
677 unsigned char *kbuf
= kmalloc(size
, GFP_KERNEL
);
679 if (copy_from_user(kbuf
, buf
, size
))
682 err
= snd_sb_csp_load(p
, kbuf
, size
, load_flags
);
688 #include "sb16_csp_codecs.h"
691 * autoload hardware codec if necessary
692 * return 0 if CSP is loaded and ready to run (p->running != 0)
694 static int snd_sb_csp_autoload(snd_sb_csp_t
* p
, int pcm_sfmt
, int play_rec_mode
)
699 /* if CSP is running or manually loaded then exit */
700 if (p
->running
& (SNDRV_SB_CSP_ST_RUNNING
| SNDRV_SB_CSP_ST_LOADED
))
703 /* autoload microcode only if requested hardware codec is not already loaded */
704 if (((1 << pcm_sfmt
) & p
->acc_format
) && (play_rec_mode
& p
->mode
)) {
705 p
->running
= SNDRV_SB_CSP_ST_AUTO
;
708 case SNDRV_PCM_FORMAT_MU_LAW
:
709 err
= snd_sb_csp_load(p
, &mulaw_main
[0], sizeof(mulaw_main
), 0);
710 p
->acc_format
= SNDRV_PCM_FMTBIT_MU_LAW
;
711 p
->mode
= SNDRV_SB_CSP_MODE_DSP_READ
| SNDRV_SB_CSP_MODE_DSP_WRITE
;
713 case SNDRV_PCM_FORMAT_A_LAW
:
714 err
= snd_sb_csp_load(p
, &alaw_main
[0], sizeof(alaw_main
), 0);
715 p
->acc_format
= SNDRV_PCM_FMTBIT_A_LAW
;
716 p
->mode
= SNDRV_SB_CSP_MODE_DSP_READ
| SNDRV_SB_CSP_MODE_DSP_WRITE
;
718 case SNDRV_PCM_FORMAT_IMA_ADPCM
:
719 err
= snd_sb_csp_load(p
, &ima_adpcm_init
[0], sizeof(ima_adpcm_init
),
720 SNDRV_SB_CSP_LOAD_INITBLOCK
);
723 if (play_rec_mode
== SNDRV_SB_CSP_MODE_DSP_WRITE
) {
724 err
= snd_sb_csp_load(p
, &ima_adpcm_playback
[0],
725 sizeof(ima_adpcm_playback
), 0);
726 p
->mode
= SNDRV_SB_CSP_MODE_DSP_WRITE
;
728 err
= snd_sb_csp_load(p
, &ima_adpcm_capture
[0],
729 sizeof(ima_adpcm_capture
), 0);
730 p
->mode
= SNDRV_SB_CSP_MODE_DSP_READ
;
732 p
->acc_format
= SNDRV_PCM_FMTBIT_IMA_ADPCM
;
735 /* Decouple CSP from IRQ and DMAREQ lines */
736 if (p
->running
& SNDRV_SB_CSP_ST_AUTO
) {
737 spin_lock_irqsave(&p
->chip
->reg_lock
, flags
);
738 set_mode_register(p
->chip
, 0xfc);
739 set_mode_register(p
->chip
, 0x00);
740 spin_unlock_irqrestore(&p
->chip
->reg_lock
, flags
);
741 p
->running
= 0; /* clear autoloaded flag */
747 p
->acc_channels
= p
->acc_width
= p
->acc_rates
= 0;
749 p
->running
= 0; /* clear autoloaded flag */
753 p
->running
= SNDRV_SB_CSP_ST_AUTO
; /* set autoloaded flag */
754 p
->acc_width
= SNDRV_SB_CSP_SAMPLE_16BIT
; /* only 16 bit data */
755 p
->acc_channels
= SNDRV_SB_CSP_MONO
| SNDRV_SB_CSP_STEREO
;
756 p
->acc_rates
= SNDRV_SB_CSP_RATE_ALL
; /* HW codecs accept all rates */
760 return (p
->running
& SNDRV_SB_CSP_ST_AUTO
) ? 0 : -ENXIO
;
766 static int snd_sb_csp_start(snd_sb_csp_t
* p
, int sample_width
, int channels
)
768 unsigned char s_type
; /* sample type */
769 unsigned char mixL
, mixR
;
773 if (!(p
->running
& (SNDRV_SB_CSP_ST_LOADED
| SNDRV_SB_CSP_ST_AUTO
))) {
774 snd_printd("%s: Microcode not loaded\n", __FUNCTION__
);
777 if (p
->running
& SNDRV_SB_CSP_ST_RUNNING
) {
778 snd_printd("%s: CSP already running\n", __FUNCTION__
);
781 if (!(sample_width
& p
->acc_width
)) {
782 snd_printd("%s: Unsupported PCM sample width\n", __FUNCTION__
);
785 if (!(channels
& p
->acc_channels
)) {
786 snd_printd("%s: Invalid number of channels\n", __FUNCTION__
);
790 /* Mute PCM volume */
791 spin_lock_irqsave(&p
->chip
->mixer_lock
, flags
);
792 mixL
= snd_sbmixer_read(p
->chip
, SB_DSP4_PCM_DEV
);
793 mixR
= snd_sbmixer_read(p
->chip
, SB_DSP4_PCM_DEV
+ 1);
794 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
, mixL
& 0x7);
795 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
+ 1, mixR
& 0x7);
797 spin_lock(&p
->chip
->reg_lock
);
798 set_mode_register(p
->chip
, 0xc0); /* c0 = STOP */
799 set_mode_register(p
->chip
, 0x70); /* 70 = RUN */
802 if (channels
== SNDRV_SB_CSP_MONO
)
803 s_type
= 0x11; /* 000n 000n (n = 1 if mono) */
804 if (sample_width
== SNDRV_SB_CSP_SAMPLE_8BIT
)
805 s_type
|= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */
807 if (set_codec_parameter(p
->chip
, 0x81, s_type
)) {
808 snd_printd("%s: Set sample type command failed\n", __FUNCTION__
);
811 if (set_codec_parameter(p
->chip
, 0x80, 0x00)) {
812 snd_printd("%s: Codec start command failed\n", __FUNCTION__
);
815 p
->run_width
= sample_width
;
816 p
->run_channels
= channels
;
818 p
->running
|= SNDRV_SB_CSP_ST_RUNNING
;
820 if (p
->mode
& SNDRV_SB_CSP_MODE_QSOUND
) {
821 set_codec_parameter(p
->chip
, 0xe0, 0x01);
822 /* enable QSound decoder */
823 set_codec_parameter(p
->chip
, 0x00, 0xff);
824 set_codec_parameter(p
->chip
, 0x01, 0xff);
825 p
->running
|= SNDRV_SB_CSP_ST_QSOUND
;
826 /* set QSound startup value */
827 snd_sb_csp_qsound_transfer(p
);
832 spin_unlock(&p
->chip
->reg_lock
);
834 /* restore PCM volume */
835 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
, mixL
);
836 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
+ 1, mixR
);
837 spin_unlock_irqrestore(&p
->chip
->mixer_lock
, flags
);
845 static int snd_sb_csp_stop(snd_sb_csp_t
* p
)
848 unsigned char mixL
, mixR
;
851 if (!(p
->running
& SNDRV_SB_CSP_ST_RUNNING
))
854 /* Mute PCM volume */
855 spin_lock_irqsave(&p
->chip
->mixer_lock
, flags
);
856 mixL
= snd_sbmixer_read(p
->chip
, SB_DSP4_PCM_DEV
);
857 mixR
= snd_sbmixer_read(p
->chip
, SB_DSP4_PCM_DEV
+ 1);
858 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
, mixL
& 0x7);
859 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
+ 1, mixR
& 0x7);
861 spin_lock(&p
->chip
->reg_lock
);
862 if (p
->running
& SNDRV_SB_CSP_ST_QSOUND
) {
863 set_codec_parameter(p
->chip
, 0xe0, 0x01);
864 /* disable QSound decoder */
865 set_codec_parameter(p
->chip
, 0x00, 0x00);
866 set_codec_parameter(p
->chip
, 0x01, 0x00);
868 p
->running
&= ~SNDRV_SB_CSP_ST_QSOUND
;
870 result
= set_mode_register(p
->chip
, 0xc0); /* c0 = STOP */
871 spin_unlock(&p
->chip
->reg_lock
);
873 /* restore PCM volume */
874 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
, mixL
);
875 snd_sbmixer_write(p
->chip
, SB_DSP4_PCM_DEV
+ 1, mixR
);
876 spin_unlock_irqrestore(&p
->chip
->mixer_lock
, flags
);
879 p
->running
&= ~(SNDRV_SB_CSP_ST_PAUSED
| SNDRV_SB_CSP_ST_RUNNING
);
884 * pause CSP codec and hold DMA transfer
886 static int snd_sb_csp_pause(snd_sb_csp_t
* p
)
891 if (!(p
->running
& SNDRV_SB_CSP_ST_RUNNING
))
894 spin_lock_irqsave(&p
->chip
->reg_lock
, flags
);
895 result
= set_codec_parameter(p
->chip
, 0x80, 0xff);
896 spin_unlock_irqrestore(&p
->chip
->reg_lock
, flags
);
898 p
->running
|= SNDRV_SB_CSP_ST_PAUSED
;
904 * restart CSP codec and resume DMA transfer
906 static int snd_sb_csp_restart(snd_sb_csp_t
* p
)
911 if (!(p
->running
& SNDRV_SB_CSP_ST_PAUSED
))
914 spin_lock_irqsave(&p
->chip
->reg_lock
, flags
);
915 result
= set_codec_parameter(p
->chip
, 0x80, 0x00);
916 spin_unlock_irqrestore(&p
->chip
->reg_lock
, flags
);
918 p
->running
&= ~SNDRV_SB_CSP_ST_PAUSED
;
923 /* ------------------------------ */
926 * QSound mixer control for PCM
929 static int snd_sb_qsound_switch_info(snd_kcontrol_t
*kcontrol
, snd_ctl_elem_info_t
* uinfo
)
931 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BOOLEAN
;
933 uinfo
->value
.integer
.min
= 0;
934 uinfo
->value
.integer
.max
= 1;
938 static int snd_sb_qsound_switch_get(snd_kcontrol_t
* kcontrol
, snd_ctl_elem_value_t
* ucontrol
)
940 snd_sb_csp_t
*p
= snd_kcontrol_chip(kcontrol
);
942 ucontrol
->value
.integer
.value
[0] = p
->q_enabled
? 1 : 0;
946 static int snd_sb_qsound_switch_put(snd_kcontrol_t
* kcontrol
, snd_ctl_elem_value_t
* ucontrol
)
948 snd_sb_csp_t
*p
= snd_kcontrol_chip(kcontrol
);
953 nval
= ucontrol
->value
.integer
.value
[0] & 0x01;
954 spin_lock_irqsave(&p
->q_lock
, flags
);
955 change
= p
->q_enabled
!= nval
;
957 spin_unlock_irqrestore(&p
->q_lock
, flags
);
961 static int snd_sb_qsound_space_info(snd_kcontrol_t
*kcontrol
, snd_ctl_elem_info_t
* uinfo
)
963 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
965 uinfo
->value
.integer
.min
= 0;
966 uinfo
->value
.integer
.max
= SNDRV_SB_CSP_QSOUND_MAX_RIGHT
;
970 static int snd_sb_qsound_space_get(snd_kcontrol_t
* kcontrol
, snd_ctl_elem_value_t
* ucontrol
)
972 snd_sb_csp_t
*p
= snd_kcontrol_chip(kcontrol
);
975 spin_lock_irqsave(&p
->q_lock
, flags
);
976 ucontrol
->value
.integer
.value
[0] = p
->qpos_left
;
977 ucontrol
->value
.integer
.value
[1] = p
->qpos_right
;
978 spin_unlock_irqrestore(&p
->q_lock
, flags
);
982 static int snd_sb_qsound_space_put(snd_kcontrol_t
* kcontrol
, snd_ctl_elem_value_t
* ucontrol
)
984 snd_sb_csp_t
*p
= snd_kcontrol_chip(kcontrol
);
987 unsigned char nval1
, nval2
;
989 nval1
= ucontrol
->value
.integer
.value
[0];
990 if (nval1
> SNDRV_SB_CSP_QSOUND_MAX_RIGHT
)
991 nval1
= SNDRV_SB_CSP_QSOUND_MAX_RIGHT
;
992 nval2
= ucontrol
->value
.integer
.value
[1];
993 if (nval2
> SNDRV_SB_CSP_QSOUND_MAX_RIGHT
)
994 nval2
= SNDRV_SB_CSP_QSOUND_MAX_RIGHT
;
995 spin_lock_irqsave(&p
->q_lock
, flags
);
996 change
= p
->qpos_left
!= nval1
|| p
->qpos_right
!= nval2
;
997 p
->qpos_left
= nval1
;
998 p
->qpos_right
= nval2
;
999 p
->qpos_changed
= change
;
1000 spin_unlock_irqrestore(&p
->q_lock
, flags
);
1004 static snd_kcontrol_new_t snd_sb_qsound_switch
= {
1005 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1006 .name
= "3D Control - Switch",
1007 .info
= snd_sb_qsound_switch_info
,
1008 .get
= snd_sb_qsound_switch_get
,
1009 .put
= snd_sb_qsound_switch_put
1012 static snd_kcontrol_new_t snd_sb_qsound_space
= {
1013 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1014 .name
= "3D Control - Space",
1015 .info
= snd_sb_qsound_space_info
,
1016 .get
= snd_sb_qsound_space_get
,
1017 .put
= snd_sb_qsound_space_put
1020 static int snd_sb_qsound_build(snd_sb_csp_t
* p
)
1025 snd_assert(p
!= NULL
, return -EINVAL
);
1027 card
= p
->chip
->card
;
1028 p
->qpos_left
= p
->qpos_right
= SNDRV_SB_CSP_QSOUND_MAX_RIGHT
/ 2;
1029 p
->qpos_changed
= 0;
1031 spin_lock_init(&p
->q_lock
);
1033 if ((err
= snd_ctl_add(card
, p
->qsound_switch
= snd_ctl_new1(&snd_sb_qsound_switch
, p
))) < 0)
1035 if ((err
= snd_ctl_add(card
, p
->qsound_space
= snd_ctl_new1(&snd_sb_qsound_space
, p
))) < 0)
1041 snd_sb_qsound_destroy(p
);
1045 static void snd_sb_qsound_destroy(snd_sb_csp_t
* p
)
1048 unsigned long flags
;
1050 snd_assert(p
!= NULL
, return);
1052 card
= p
->chip
->card
;
1054 down_write(&card
->controls_rwsem
);
1055 if (p
->qsound_switch
)
1056 snd_ctl_remove(card
, p
->qsound_switch
);
1057 if (p
->qsound_space
)
1058 snd_ctl_remove(card
, p
->qsound_space
);
1059 up_write(&card
->controls_rwsem
);
1061 /* cancel pending transfer of QSound parameters */
1062 spin_lock_irqsave (&p
->q_lock
, flags
);
1063 p
->qpos_changed
= 0;
1064 spin_unlock_irqrestore (&p
->q_lock
, flags
);
1068 * Transfer qsound parameters to CSP,
1069 * function should be called from interrupt routine
1071 static int snd_sb_csp_qsound_transfer(snd_sb_csp_t
* p
)
1075 spin_lock(&p
->q_lock
);
1076 if (p
->running
& SNDRV_SB_CSP_ST_QSOUND
) {
1077 set_codec_parameter(p
->chip
, 0xe0, 0x01);
1079 set_codec_parameter(p
->chip
, 0x00, p
->qpos_left
);
1080 set_codec_parameter(p
->chip
, 0x02, 0x00);
1082 set_codec_parameter(p
->chip
, 0x00, p
->qpos_right
);
1083 set_codec_parameter(p
->chip
, 0x03, 0x00);
1086 p
->qpos_changed
= 0;
1087 spin_unlock(&p
->q_lock
);
1091 /* ------------------------------ */
1096 static int init_proc_entry(snd_sb_csp_t
* p
, int device
)
1099 snd_info_entry_t
*entry
;
1100 sprintf(name
, "cspD%d", device
);
1101 if (! snd_card_proc_new(p
->chip
->card
, name
, &entry
))
1102 snd_info_set_text_ops(entry
, p
, 1024, info_read
);
1106 static void info_read(snd_info_entry_t
*entry
, snd_info_buffer_t
* buffer
)
1108 snd_sb_csp_t
*p
= entry
->private_data
;
1110 snd_iprintf(buffer
, "Creative Signal Processor [v%d.%d]\n", (p
->version
>> 4), (p
->version
& 0x0f));
1111 snd_iprintf(buffer
, "State: %cx%c%c%c\n", ((p
->running
& SNDRV_SB_CSP_ST_QSOUND
) ? 'Q' : '-'),
1112 ((p
->running
& SNDRV_SB_CSP_ST_PAUSED
) ? 'P' : '-'),
1113 ((p
->running
& SNDRV_SB_CSP_ST_RUNNING
) ? 'R' : '-'),
1114 ((p
->running
& SNDRV_SB_CSP_ST_LOADED
) ? 'L' : '-'));
1115 if (p
->running
& SNDRV_SB_CSP_ST_LOADED
) {
1116 snd_iprintf(buffer
, "Codec: %s [func #%d]\n", p
->codec_name
, p
->func_nr
);
1117 snd_iprintf(buffer
, "Sample rates: ");
1118 if (p
->acc_rates
== SNDRV_SB_CSP_RATE_ALL
) {
1119 snd_iprintf(buffer
, "All\n");
1121 snd_iprintf(buffer
, "%s%s%s%s\n",
1122 ((p
->acc_rates
& SNDRV_SB_CSP_RATE_8000
) ? "8000Hz " : ""),
1123 ((p
->acc_rates
& SNDRV_SB_CSP_RATE_11025
) ? "11025Hz " : ""),
1124 ((p
->acc_rates
& SNDRV_SB_CSP_RATE_22050
) ? "22050Hz " : ""),
1125 ((p
->acc_rates
& SNDRV_SB_CSP_RATE_44100
) ? "44100Hz" : ""));
1127 if (p
->mode
== SNDRV_SB_CSP_MODE_QSOUND
) {
1128 snd_iprintf(buffer
, "QSound decoder %sabled\n",
1129 p
->q_enabled
? "en" : "dis");
1131 snd_iprintf(buffer
, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1133 ((p
->acc_width
& SNDRV_SB_CSP_SAMPLE_16BIT
) ? "16bit" : "-"),
1134 ((p
->acc_width
& SNDRV_SB_CSP_SAMPLE_8BIT
) ? "8bit" : "-"),
1135 ((p
->acc_channels
& SNDRV_SB_CSP_MONO
) ? "mono" : "-"),
1136 ((p
->acc_channels
& SNDRV_SB_CSP_STEREO
) ? "stereo" : "-"),
1137 ((p
->mode
& SNDRV_SB_CSP_MODE_DSP_WRITE
) ? "playback" : "-"),
1138 ((p
->mode
& SNDRV_SB_CSP_MODE_DSP_READ
) ? "capture" : "-"));
1141 if (p
->running
& SNDRV_SB_CSP_ST_AUTO
) {
1142 snd_iprintf(buffer
, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1144 if (p
->running
& SNDRV_SB_CSP_ST_RUNNING
) {
1145 snd_iprintf(buffer
, "Processing %dbit %s PCM samples\n",
1146 ((p
->run_width
& SNDRV_SB_CSP_SAMPLE_16BIT
) ? 16 : 8),
1147 ((p
->run_channels
& SNDRV_SB_CSP_MONO
) ? "mono" : "stereo"));
1149 if (p
->running
& SNDRV_SB_CSP_ST_QSOUND
) {
1150 snd_iprintf(buffer
, "Qsound position: left = 0x%x, right = 0x%x\n",
1151 p
->qpos_left
, p
->qpos_right
);
1157 EXPORT_SYMBOL(snd_sb_csp_new
);
1163 static int __init
alsa_sb_csp_init(void)
1168 static void __exit
alsa_sb_csp_exit(void)
1172 module_init(alsa_sb_csp_init
)
1173 module_exit(alsa_sb_csp_exit
)