firmware: convert sb16_csp driver to use firmware loader exclusively
[linux-2.6.git] / sound / isa / sb / sb16_csp.c
1 /*
2  *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
3  *                        Takashi Iwai <tiwai@suse.de>
4  *
5  *  SB16ASP/AWE32 CSP control
6  *
7  *  CSP microcode loader:
8  *   alsa-tools/sb16_csp/ 
9  *
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.
14  *
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.
19  *
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
23  *
24  */
25
26 #include <linux/delay.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <sound/core.h>
30 #include <sound/control.h>
31 #include <sound/info.h>
32 #include <sound/sb16_csp.h>
33 #include <sound/initval.h>
34
35 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
36 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
37 MODULE_LICENSE("GPL");
38 MODULE_FIRMWARE("sb16/mulaw_main.csp");
39 MODULE_FIRMWARE("sb16/alaw_main.csp");
40 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
41 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
42 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
43
44 #ifdef SNDRV_LITTLE_ENDIAN
45 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
46 #else
47 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
48 #endif
49
50 #define RIFF_HEADER     CSP_HDR_VALUE('R', 'I', 'F', 'F')
51 #define CSP__HEADER     CSP_HDR_VALUE('C', 'S', 'P', ' ')
52 #define LIST_HEADER     CSP_HDR_VALUE('L', 'I', 'S', 'T')
53 #define FUNC_HEADER     CSP_HDR_VALUE('f', 'u', 'n', 'c')
54 #define CODE_HEADER     CSP_HDR_VALUE('c', 'o', 'd', 'e')
55 #define INIT_HEADER     CSP_HDR_VALUE('i', 'n', 'i', 't')
56 #define MAIN_HEADER     CSP_HDR_VALUE('m', 'a', 'i', 'n')
57
58 /*
59  * RIFF data format
60  */
61 struct riff_header {
62         __u32 name;
63         __u32 len;
64 };
65
66 struct desc_header {
67         struct riff_header info;
68         __u16 func_nr;
69         __u16 VOC_type;
70         __u16 flags_play_rec;
71         __u16 flags_16bit_8bit;
72         __u16 flags_stereo_mono;
73         __u16 flags_rates;
74 };
75
76 /*
77  * prototypes
78  */
79 static void snd_sb_csp_free(struct snd_hwdep *hw);
80 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
81 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
82 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
83
84 static int csp_detect(struct snd_sb *chip, int *version);
85 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
86 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
87 static int read_register(struct snd_sb *chip, unsigned char reg);
88 static int set_mode_register(struct snd_sb *chip, unsigned char mode);
89 static int get_version(struct snd_sb *chip);
90
91 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
92                                 struct snd_sb_csp_microcode __user * code);
93 static int snd_sb_csp_unload(struct snd_sb_csp * p);
94 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
95 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
96 static int snd_sb_csp_check_version(struct snd_sb_csp * p);
97
98 static int snd_sb_csp_use(struct snd_sb_csp * p);
99 static int snd_sb_csp_unuse(struct snd_sb_csp * p);
100 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
101 static int snd_sb_csp_stop(struct snd_sb_csp * p);
102 static int snd_sb_csp_pause(struct snd_sb_csp * p);
103 static int snd_sb_csp_restart(struct snd_sb_csp * p);
104
105 static int snd_sb_qsound_build(struct snd_sb_csp * p);
106 static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
107 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
108
109 static int init_proc_entry(struct snd_sb_csp * p, int device);
110 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
111
112 /*
113  * Detect CSP chip and create a new instance
114  */
115 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
116 {
117         struct snd_sb_csp *p;
118         int uninitialized_var(version);
119         int err;
120         struct snd_hwdep *hw;
121
122         if (rhwdep)
123                 *rhwdep = NULL;
124
125         if (csp_detect(chip, &version))
126                 return -ENODEV;
127
128         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
129                 return err;
130
131         if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
132                 snd_device_free(chip->card, hw);
133                 return -ENOMEM;
134         }
135         p->chip = chip;
136         p->version = version;
137
138         /* CSP operators */
139         p->ops.csp_use = snd_sb_csp_use;
140         p->ops.csp_unuse = snd_sb_csp_unuse;
141         p->ops.csp_autoload = snd_sb_csp_autoload;
142         p->ops.csp_start = snd_sb_csp_start;
143         p->ops.csp_stop = snd_sb_csp_stop;
144         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
145
146         mutex_init(&p->access_mutex);
147         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
148         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
149         hw->private_data = p;
150         hw->private_free = snd_sb_csp_free;
151
152         /* operators - only write/ioctl */
153         hw->ops.open = snd_sb_csp_open;
154         hw->ops.ioctl = snd_sb_csp_ioctl;
155         hw->ops.release = snd_sb_csp_release;
156
157         /* create a proc entry */
158         init_proc_entry(p, device);
159         if (rhwdep)
160                 *rhwdep = hw;
161         return 0;
162 }
163
164 /*
165  * free_private for hwdep instance
166  */
167 static void snd_sb_csp_free(struct snd_hwdep *hwdep)
168 {
169         int i;
170         struct snd_sb_csp *p = hwdep->private_data;
171         if (p) {
172                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
173                         snd_sb_csp_stop(p);
174                 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
175                         release_firmware(p->csp_programs[i]);
176                 kfree(p);
177         }
178 }
179
180 /* ------------------------------ */
181
182 /*
183  * open the device exclusively
184  */
185 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
186 {
187         struct snd_sb_csp *p = hw->private_data;
188         return (snd_sb_csp_use(p));
189 }
190
191 /*
192  * ioctl for hwdep device:
193  */
194 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
195 {
196         struct snd_sb_csp *p = hw->private_data;
197         struct snd_sb_csp_info info;
198         struct snd_sb_csp_start start_info;
199         int err;
200
201         snd_assert(p != NULL, return -EINVAL);
202
203         if (snd_sb_csp_check_version(p))
204                 return -ENODEV;
205
206         switch (cmd) {
207                 /* get information */
208         case SNDRV_SB_CSP_IOCTL_INFO:
209                 *info.codec_name = *p->codec_name;
210                 info.func_nr = p->func_nr;
211                 info.acc_format = p->acc_format;
212                 info.acc_channels = p->acc_channels;
213                 info.acc_width = p->acc_width;
214                 info.acc_rates = p->acc_rates;
215                 info.csp_mode = p->mode;
216                 info.run_channels = p->run_channels;
217                 info.run_width = p->run_width;
218                 info.version = p->version;
219                 info.state = p->running;
220                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
221                         err = -EFAULT;
222                 else
223                         err = 0;
224                 break;
225
226                 /* load CSP microcode */
227         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
228                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
229                        -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
230                 break;
231         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
232                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
233                        -EBUSY : snd_sb_csp_unload(p));
234                 break;
235
236                 /* change CSP running state */
237         case SNDRV_SB_CSP_IOCTL_START:
238                 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
239                         err = -EFAULT;
240                 else
241                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
242                 break;
243         case SNDRV_SB_CSP_IOCTL_STOP:
244                 err = snd_sb_csp_stop(p);
245                 break;
246         case SNDRV_SB_CSP_IOCTL_PAUSE:
247                 err = snd_sb_csp_pause(p);
248                 break;
249         case SNDRV_SB_CSP_IOCTL_RESTART:
250                 err = snd_sb_csp_restart(p);
251                 break;
252         default:
253                 err = -ENOTTY;
254                 break;
255         }
256
257         return err;
258 }
259
260 /*
261  * close the device
262  */
263 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
264 {
265         struct snd_sb_csp *p = hw->private_data;
266         return (snd_sb_csp_unuse(p));
267 }
268
269 /* ------------------------------ */
270
271 /*
272  * acquire device
273  */
274 static int snd_sb_csp_use(struct snd_sb_csp * p)
275 {
276         mutex_lock(&p->access_mutex);
277         if (p->used) {
278                 mutex_unlock(&p->access_mutex);
279                 return -EAGAIN;
280         }
281         p->used++;
282         mutex_unlock(&p->access_mutex);
283
284         return 0;
285
286 }
287
288 /*
289  * release device
290  */
291 static int snd_sb_csp_unuse(struct snd_sb_csp * p)
292 {
293         mutex_lock(&p->access_mutex);
294         p->used--;
295         mutex_unlock(&p->access_mutex);
296
297         return 0;
298 }
299
300 /*
301  * load microcode via ioctl: 
302  * code is user-space pointer
303  */
304 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
305                                 struct snd_sb_csp_microcode __user * mcode)
306 {
307         struct snd_sb_csp_mc_header info;
308
309         unsigned char __user *data_ptr;
310         unsigned char __user *data_end;
311         unsigned short func_nr = 0;
312
313         struct riff_header file_h, item_h, code_h;
314         __u32 item_type;
315         struct desc_header funcdesc_h;
316
317         unsigned long flags;
318         int err;
319
320         if (copy_from_user(&info, mcode, sizeof(info)))
321                 return -EFAULT;
322         data_ptr = mcode->data;
323
324         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
325                 return -EFAULT;
326         if ((file_h.name != RIFF_HEADER) ||
327             (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
328                 snd_printd("%s: Invalid RIFF header\n", __func__);
329                 return -EINVAL;
330         }
331         data_ptr += sizeof(file_h);
332         data_end = data_ptr + le32_to_cpu(file_h.len);
333
334         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
335                 return -EFAULT;
336         if (item_type != CSP__HEADER) {
337                 snd_printd("%s: Invalid RIFF file type\n", __func__);
338                 return -EINVAL;
339         }
340         data_ptr += sizeof (item_type);
341
342         for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
343                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
344                         return -EFAULT;
345                 data_ptr += sizeof(item_h);
346                 if (item_h.name != LIST_HEADER)
347                         continue;
348
349                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
350                          return -EFAULT;
351                 switch (item_type) {
352                 case FUNC_HEADER:
353                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
354                                 return -EFAULT;
355                         func_nr = le16_to_cpu(funcdesc_h.func_nr);
356                         break;
357                 case CODE_HEADER:
358                         if (func_nr != info.func_req)
359                                 break;  /* not required function, try next */
360                         data_ptr += sizeof(item_type);
361
362                         /* destroy QSound mixer element */
363                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
364                                 snd_sb_qsound_destroy(p);
365                         }
366                         /* Clear all flags */
367                         p->running = 0;
368                         p->mode = 0;
369
370                         /* load microcode blocks */
371                         for (;;) {
372                                 if (data_ptr >= data_end)
373                                         return -EINVAL;
374                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
375                                         return -EFAULT;
376
377                                 /* init microcode blocks */
378                                 if (code_h.name != INIT_HEADER)
379                                         break;
380                                 data_ptr += sizeof(code_h);
381                                 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
382                                                       SNDRV_SB_CSP_LOAD_INITBLOCK);
383                                 if (err)
384                                         return err;
385                                 data_ptr += le32_to_cpu(code_h.len);
386                         }
387                         /* main microcode block */
388                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
389                                 return -EFAULT;
390
391                         if (code_h.name != MAIN_HEADER) {
392                                 snd_printd("%s: Missing 'main' microcode\n", __func__);
393                                 return -EINVAL;
394                         }
395                         data_ptr += sizeof(code_h);
396                         err = snd_sb_csp_load_user(p, data_ptr,
397                                                    le32_to_cpu(code_h.len), 0);
398                         if (err)
399                                 return err;
400
401                         /* fill in codec header */
402                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
403                         p->func_nr = func_nr;
404                         p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
405                         switch (le16_to_cpu(funcdesc_h.VOC_type)) {
406                         case 0x0001:    /* QSound decoder */
407                                 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
408                                         if (snd_sb_qsound_build(p) == 0)
409                                                 /* set QSound flag and clear all other mode flags */
410                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
411                                 }
412                                 p->acc_format = 0;
413                                 break;
414                         case 0x0006:    /* A Law codec */
415                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
416                                 break;
417                         case 0x0007:    /* Mu Law codec */
418                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
419                                 break;
420                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
421                         case 0x0200:    /* Creative ADPCM codec */
422                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
423                                 break;
424                         case    201:    /* Text 2 Speech decoder */
425                                 /* TODO: Text2Speech handling routines */
426                                 p->acc_format = 0;
427                                 break;
428                         case 0x0202:    /* Fast Speech 8 codec */
429                         case 0x0203:    /* Fast Speech 10 codec */
430                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
431                                 break;
432                         default:        /* other codecs are unsupported */
433                                 p->acc_format = p->acc_width = p->acc_rates = 0;
434                                 p->mode = 0;
435                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
436                                            __func__,
437                                            le16_to_cpu(funcdesc_h.VOC_type));
438                                 return -EINVAL;
439                         }
440                         p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
441                         p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
442                         p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
443
444                         /* Decouple CSP from IRQ and DMAREQ lines */
445                         spin_lock_irqsave(&p->chip->reg_lock, flags);
446                         set_mode_register(p->chip, 0xfc);
447                         set_mode_register(p->chip, 0x00);
448                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
449
450                         /* finished loading successfully */
451                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
452                         return 0;
453                 }
454         }
455         snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
456         return -EINVAL;
457 }
458
459 /*
460  * unload CSP microcode
461  */
462 static int snd_sb_csp_unload(struct snd_sb_csp * p)
463 {
464         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
465                 return -EBUSY;
466         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
467                 return -ENXIO;
468
469         /* clear supported formats */
470         p->acc_format = 0;
471         p->acc_channels = p->acc_width = p->acc_rates = 0;
472         /* destroy QSound mixer element */
473         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
474                 snd_sb_qsound_destroy(p);
475         }
476         /* clear all flags */
477         p->running = 0;
478         p->mode = 0;
479         return 0;
480 }
481
482 /*
483  * send command sequence to DSP
484  */
485 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
486 {
487         int i;
488         for (i = 0; i < size; i++) {
489                 if (!snd_sbdsp_command(chip, seq[i]))
490                         return -EIO;
491         }
492         return 0;
493 }
494
495 /*
496  * set CSP codec parameter
497  */
498 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
499 {
500         unsigned char dsp_cmd[3];
501
502         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
503         dsp_cmd[1] = val;       /* Parameter value */
504         dsp_cmd[2] = par;       /* Parameter */
505         command_seq(chip, dsp_cmd, 3);
506         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
507         if (snd_sbdsp_get_byte(chip) != par)
508                 return -EIO;
509         return 0;
510 }
511
512 /*
513  * set CSP register
514  */
515 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
516 {
517         unsigned char dsp_cmd[3];
518
519         dsp_cmd[0] = 0x0e;      /* CSP set register */
520         dsp_cmd[1] = reg;       /* CSP Register */
521         dsp_cmd[2] = val;       /* value */
522         return command_seq(chip, dsp_cmd, 3);
523 }
524
525 /*
526  * read CSP register
527  * return < 0 -> error
528  */
529 static int read_register(struct snd_sb *chip, unsigned char reg)
530 {
531         unsigned char dsp_cmd[2];
532
533         dsp_cmd[0] = 0x0f;      /* CSP read register */
534         dsp_cmd[1] = reg;       /* CSP Register */
535         command_seq(chip, dsp_cmd, 2);
536         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
537 }
538
539 /*
540  * set CSP mode register
541  */
542 static int set_mode_register(struct snd_sb *chip, unsigned char mode)
543 {
544         unsigned char dsp_cmd[2];
545
546         dsp_cmd[0] = 0x04;      /* CSP set mode register */
547         dsp_cmd[1] = mode;      /* mode */
548         return command_seq(chip, dsp_cmd, 2);
549 }
550
551 /*
552  * Detect CSP
553  * return 0 if CSP exists.
554  */
555 static int csp_detect(struct snd_sb *chip, int *version)
556 {
557         unsigned char csp_test1, csp_test2;
558         unsigned long flags;
559         int result = -ENODEV;
560
561         spin_lock_irqsave(&chip->reg_lock, flags);
562
563         set_codec_parameter(chip, 0x00, 0x00);
564         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
565
566         csp_test1 = read_register(chip, 0x83);
567         set_register(chip, 0x83, ~csp_test1);
568         csp_test2 = read_register(chip, 0x83);
569         if (csp_test2 != (csp_test1 ^ 0xff))
570                 goto __fail;
571
572         set_register(chip, 0x83, csp_test1);
573         csp_test2 = read_register(chip, 0x83);
574         if (csp_test2 != csp_test1)
575                 goto __fail;
576
577         set_mode_register(chip, 0x00);          /* 0x00 = ? */
578
579         *version = get_version(chip);
580         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
581         if (*version >= 0x10 && *version <= 0x1f)
582                 result = 0;             /* valid version id */
583
584       __fail:
585         spin_unlock_irqrestore(&chip->reg_lock, flags);
586         return result;
587 }
588
589 /*
590  * get CSP version number
591  */
592 static int get_version(struct snd_sb *chip)
593 {
594         unsigned char dsp_cmd[2];
595
596         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
597         dsp_cmd[1] = 0x03;      /* get chip version id? */
598         command_seq(chip, dsp_cmd, 2);
599
600         return (snd_sbdsp_get_byte(chip));
601 }
602
603 /*
604  * check if the CSP version is valid
605  */
606 static int snd_sb_csp_check_version(struct snd_sb_csp * p)
607 {
608         if (p->version < 0x10 || p->version > 0x1f) {
609                 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
610                 return 1;
611         }
612         return 0;
613 }
614
615 /*
616  * download microcode to CSP (microcode should have one "main" block).
617  */
618 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
619 {
620         int status, i;
621         int err;
622         int result = -EIO;
623         unsigned long flags;
624
625         spin_lock_irqsave(&p->chip->reg_lock, flags);
626         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
627         if (snd_sbdsp_get_byte(p->chip)) {
628                 snd_printd("%s: Download command failed\n", __func__);
629                 goto __fail;
630         }
631         /* Send CSP low byte (size - 1) */
632         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
633         /* Send high byte */
634         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
635         /* send microcode sequence */
636         /* load from kernel space */
637         while (size--) {
638                 if (!snd_sbdsp_command(p->chip, *buf++))
639                         goto __fail;
640         }
641         if (snd_sbdsp_get_byte(p->chip))
642                 goto __fail;
643
644         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
645                 i = 0;
646                 /* some codecs (FastSpeech) take some time to initialize */
647                 while (1) {
648                         snd_sbdsp_command(p->chip, 0x03);
649                         status = snd_sbdsp_get_byte(p->chip);
650                         if (status == 0x55 || ++i >= 10)
651                                 break;
652                         udelay (10);
653                 }
654                 if (status != 0x55) {
655                         snd_printd("%s: Microcode initialization failed\n", __func__);
656                         goto __fail;
657                 }
658         } else {
659                 /*
660                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
661                  * Start CSP chip if no 16bit DMA channel is set - some kind
662                  * of autorun or perhaps a bugfix?
663                  */
664                 spin_lock(&p->chip->mixer_lock);
665                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
666                 spin_unlock(&p->chip->mixer_lock);
667                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
668                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
669                                set_codec_parameter(p->chip, 0xff, 0x00));
670                         snd_sbdsp_reset(p->chip);               /* really! */
671                         if (err)
672                                 goto __fail;
673                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
674                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
675                 }
676         }
677         result = 0;
678
679       __fail:
680         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
681         return result;
682 }
683  
684 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
685 {
686         int err = -ENOMEM;
687         unsigned char *kbuf = kmalloc(size, GFP_KERNEL);
688         if (kbuf) {
689                 if (copy_from_user(kbuf, buf, size))
690                         err = -EFAULT;
691                 else
692                         err = snd_sb_csp_load(p, kbuf, size, load_flags);
693                 kfree(kbuf);
694         }
695         return err;
696 }
697
698 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
699 {
700         static const char *const names[] = {
701                 "sb16/mulaw_main.csp",
702                 "sb16/alaw_main.csp",
703                 "sb16/ima_adpcm_init.csp",
704                 "sb16/ima_adpcm_playback.csp",
705                 "sb16/ima_adpcm_capture.csp",
706         };
707         const struct firmware *program;
708
709         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
710         program = p->csp_programs[index];
711         if (!program) {
712                 int err = request_firmware(&program, names[index],
713                                        p->chip->card->dev);
714                 if (err < 0)
715                         return err;
716                 p->csp_programs[index] = program;
717         }
718         return snd_sb_csp_load(p, program->data, program->size, flags);
719 }
720
721 /*
722  * autoload hardware codec if necessary
723  * return 0 if CSP is loaded and ready to run (p->running != 0)
724  */
725 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode)
726 {
727         unsigned long flags;
728         int err = 0;
729
730         /* if CSP is running or manually loaded then exit */
731         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) 
732                 return -EBUSY;
733
734         /* autoload microcode only if requested hardware codec is not already loaded */
735         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
736                 p->running = SNDRV_SB_CSP_ST_AUTO;
737         } else {
738                 switch (pcm_sfmt) {
739                 case SNDRV_PCM_FORMAT_MU_LAW:
740                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
741                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
742                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
743                         break;
744                 case SNDRV_PCM_FORMAT_A_LAW:
745                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
746                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
747                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
748                         break;
749                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
750                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
751                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
752                         if (err)
753                                 break;
754                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
755                                 err = snd_sb_csp_firmware_load
756                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
757                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
758                         } else {
759                                 err = snd_sb_csp_firmware_load
760                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
761                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
762                         }
763                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
764                         break;                            
765                 default:
766                         /* Decouple CSP from IRQ and DMAREQ lines */
767                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
768                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
769                                 set_mode_register(p->chip, 0xfc);
770                                 set_mode_register(p->chip, 0x00);
771                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
772                                 p->running = 0;                 /* clear autoloaded flag */
773                         }
774                         return -EINVAL;
775                 }
776                 if (err) {
777                         p->acc_format = 0;
778                         p->acc_channels = p->acc_width = p->acc_rates = 0;
779
780                         p->running = 0;                         /* clear autoloaded flag */
781                         p->mode = 0;
782                         return (err);
783                 } else {
784                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
785                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
786                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
787                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
788                 }   
789
790         }
791         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
792 }
793
794 /*
795  * start CSP
796  */
797 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
798 {
799         unsigned char s_type;   /* sample type */
800         unsigned char mixL, mixR;
801         int result = -EIO;
802         unsigned long flags;
803
804         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
805                 snd_printd("%s: Microcode not loaded\n", __func__);
806                 return -ENXIO;
807         }
808         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
809                 snd_printd("%s: CSP already running\n", __func__);
810                 return -EBUSY;
811         }
812         if (!(sample_width & p->acc_width)) {
813                 snd_printd("%s: Unsupported PCM sample width\n", __func__);
814                 return -EINVAL;
815         }
816         if (!(channels & p->acc_channels)) {
817                 snd_printd("%s: Invalid number of channels\n", __func__);
818                 return -EINVAL;
819         }
820
821         /* Mute PCM volume */
822         spin_lock_irqsave(&p->chip->mixer_lock, flags);
823         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
824         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
825         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
826         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
827
828         spin_lock(&p->chip->reg_lock);
829         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
830         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
831
832         s_type = 0x00;
833         if (channels == SNDRV_SB_CSP_MONO)
834                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
835         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
836                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
837
838         if (set_codec_parameter(p->chip, 0x81, s_type)) {
839                 snd_printd("%s: Set sample type command failed\n", __func__);
840                 goto __fail;
841         }
842         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
843                 snd_printd("%s: Codec start command failed\n", __func__);
844                 goto __fail;
845         }
846         p->run_width = sample_width;
847         p->run_channels = channels;
848
849         p->running |= SNDRV_SB_CSP_ST_RUNNING;
850
851         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
852                 set_codec_parameter(p->chip, 0xe0, 0x01);
853                 /* enable QSound decoder */
854                 set_codec_parameter(p->chip, 0x00, 0xff);
855                 set_codec_parameter(p->chip, 0x01, 0xff);
856                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
857                 /* set QSound startup value */
858                 snd_sb_csp_qsound_transfer(p);
859         }
860         result = 0;
861
862       __fail:
863         spin_unlock(&p->chip->reg_lock);
864
865         /* restore PCM volume */
866         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
867         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
868         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
869
870         return result;
871 }
872
873 /*
874  * stop CSP
875  */
876 static int snd_sb_csp_stop(struct snd_sb_csp * p)
877 {
878         int result;
879         unsigned char mixL, mixR;
880         unsigned long flags;
881
882         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
883                 return 0;
884
885         /* Mute PCM volume */
886         spin_lock_irqsave(&p->chip->mixer_lock, flags);
887         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
888         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
889         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
890         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
891
892         spin_lock(&p->chip->reg_lock);
893         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
894                 set_codec_parameter(p->chip, 0xe0, 0x01);
895                 /* disable QSound decoder */
896                 set_codec_parameter(p->chip, 0x00, 0x00);
897                 set_codec_parameter(p->chip, 0x01, 0x00);
898
899                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
900         }
901         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
902         spin_unlock(&p->chip->reg_lock);
903
904         /* restore PCM volume */
905         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
906         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
907         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
908
909         if (!(result))
910                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
911         return result;
912 }
913
914 /*
915  * pause CSP codec and hold DMA transfer
916  */
917 static int snd_sb_csp_pause(struct snd_sb_csp * p)
918 {
919         int result;
920         unsigned long flags;
921
922         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
923                 return -EBUSY;
924
925         spin_lock_irqsave(&p->chip->reg_lock, flags);
926         result = set_codec_parameter(p->chip, 0x80, 0xff);
927         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
928         if (!(result))
929                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
930
931         return result;
932 }
933
934 /*
935  * restart CSP codec and resume DMA transfer
936  */
937 static int snd_sb_csp_restart(struct snd_sb_csp * p)
938 {
939         int result;
940         unsigned long flags;
941
942         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
943                 return -EBUSY;
944
945         spin_lock_irqsave(&p->chip->reg_lock, flags);
946         result = set_codec_parameter(p->chip, 0x80, 0x00);
947         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
948         if (!(result))
949                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
950
951         return result;
952 }
953
954 /* ------------------------------ */
955
956 /*
957  * QSound mixer control for PCM
958  */
959
960 #define snd_sb_qsound_switch_info       snd_ctl_boolean_mono_info
961
962 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
963 {
964         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
965         
966         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
967         return 0;
968 }
969
970 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
971 {
972         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
973         unsigned long flags;
974         int change;
975         unsigned char nval;
976         
977         nval = ucontrol->value.integer.value[0] & 0x01;
978         spin_lock_irqsave(&p->q_lock, flags);
979         change = p->q_enabled != nval;
980         p->q_enabled = nval;
981         spin_unlock_irqrestore(&p->q_lock, flags);
982         return change;
983 }
984
985 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
986 {
987         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
988         uinfo->count = 2;
989         uinfo->value.integer.min = 0;
990         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
991         return 0;
992 }
993
994 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
995 {
996         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
997         unsigned long flags;
998         
999         spin_lock_irqsave(&p->q_lock, flags);
1000         ucontrol->value.integer.value[0] = p->qpos_left;
1001         ucontrol->value.integer.value[1] = p->qpos_right;
1002         spin_unlock_irqrestore(&p->q_lock, flags);
1003         return 0;
1004 }
1005
1006 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1007 {
1008         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1009         unsigned long flags;
1010         int change;
1011         unsigned char nval1, nval2;
1012         
1013         nval1 = ucontrol->value.integer.value[0];
1014         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1015                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1016         nval2 = ucontrol->value.integer.value[1];
1017         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1018                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1019         spin_lock_irqsave(&p->q_lock, flags);
1020         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1021         p->qpos_left = nval1;
1022         p->qpos_right = nval2;
1023         p->qpos_changed = change;
1024         spin_unlock_irqrestore(&p->q_lock, flags);
1025         return change;
1026 }
1027
1028 static struct snd_kcontrol_new snd_sb_qsound_switch = {
1029         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1030         .name = "3D Control - Switch",
1031         .info = snd_sb_qsound_switch_info,
1032         .get = snd_sb_qsound_switch_get,
1033         .put = snd_sb_qsound_switch_put
1034 };
1035
1036 static struct snd_kcontrol_new snd_sb_qsound_space = {
1037         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1038         .name = "3D Control - Space",
1039         .info = snd_sb_qsound_space_info,
1040         .get = snd_sb_qsound_space_get,
1041         .put = snd_sb_qsound_space_put
1042 };
1043
1044 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1045 {
1046         struct snd_card *card;
1047         int err;
1048
1049         snd_assert(p != NULL, return -EINVAL);
1050
1051         card = p->chip->card;
1052         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1053         p->qpos_changed = 0;
1054
1055         spin_lock_init(&p->q_lock);
1056
1057         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1058                 goto __error;
1059         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1060                 goto __error;
1061
1062         return 0;
1063
1064      __error:
1065         snd_sb_qsound_destroy(p);
1066         return err;
1067 }
1068
1069 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1070 {
1071         struct snd_card *card;
1072         unsigned long flags;
1073
1074         snd_assert(p != NULL, return);
1075
1076         card = p->chip->card;   
1077         
1078         down_write(&card->controls_rwsem);
1079         if (p->qsound_switch)
1080                 snd_ctl_remove(card, p->qsound_switch);
1081         if (p->qsound_space)
1082                 snd_ctl_remove(card, p->qsound_space);
1083         up_write(&card->controls_rwsem);
1084
1085         /* cancel pending transfer of QSound parameters */
1086         spin_lock_irqsave (&p->q_lock, flags);
1087         p->qpos_changed = 0;
1088         spin_unlock_irqrestore (&p->q_lock, flags);
1089 }
1090
1091 /*
1092  * Transfer qsound parameters to CSP,
1093  * function should be called from interrupt routine
1094  */
1095 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1096 {
1097         int err = -ENXIO;
1098
1099         spin_lock(&p->q_lock);
1100         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1101                 set_codec_parameter(p->chip, 0xe0, 0x01);
1102                 /* left channel */
1103                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1104                 set_codec_parameter(p->chip, 0x02, 0x00);
1105                 /* right channel */
1106                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1107                 set_codec_parameter(p->chip, 0x03, 0x00);
1108                 err = 0;
1109         }
1110         p->qpos_changed = 0;
1111         spin_unlock(&p->q_lock);
1112         return err;
1113 }
1114
1115 /* ------------------------------ */
1116
1117 /*
1118  * proc interface
1119  */
1120 static int init_proc_entry(struct snd_sb_csp * p, int device)
1121 {
1122         char name[16];
1123         struct snd_info_entry *entry;
1124         sprintf(name, "cspD%d", device);
1125         if (! snd_card_proc_new(p->chip->card, name, &entry))
1126                 snd_info_set_text_ops(entry, p, info_read);
1127         return 0;
1128 }
1129
1130 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1131 {
1132         struct snd_sb_csp *p = entry->private_data;
1133
1134         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1135         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1136                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1137                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1138                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1139         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1140                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1141                 snd_iprintf(buffer, "Sample rates: ");
1142                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1143                         snd_iprintf(buffer, "All\n");
1144                 } else {
1145                         snd_iprintf(buffer, "%s%s%s%s\n",
1146                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1147                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1148                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1149                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1150                 }
1151                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1152                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1153                                     p->q_enabled ? "en" : "dis");
1154                 } else {
1155                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1156                                     p->acc_format,
1157                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1158                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1159                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1160                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1161                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1162                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1163                 }
1164         }
1165         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1166                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1167         }
1168         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1169                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1170                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1171                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1172         }
1173         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1174                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1175                             p->qpos_left, p->qpos_right);
1176         }
1177 }
1178
1179 /* */
1180
1181 EXPORT_SYMBOL(snd_sb_csp_new);
1182
1183 /*
1184  * INIT part
1185  */
1186
1187 static int __init alsa_sb_csp_init(void)
1188 {
1189         return 0;
1190 }
1191
1192 static void __exit alsa_sb_csp_exit(void)
1193 {
1194 }
1195
1196 module_init(alsa_sb_csp_init)
1197 module_exit(alsa_sb_csp_exit)