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Linux/sound/isa/sb/sb16_csp.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
  4  *                        Takashi Iwai <tiwai@suse.de>
  5  *
  6  *  SB16ASP/AWE32 CSP control
  7  *
  8  *  CSP microcode loader:
  9  *   alsa-tools/sb16_csp/ 
 10  */
 11 
 12 #include <linux/delay.h>
 13 #include <linux/init.h>
 14 #include <linux/slab.h>
 15 #include <linux/module.h>
 16 #include <sound/core.h>
 17 #include <sound/control.h>
 18 #include <sound/info.h>
 19 #include <sound/sb16_csp.h>
 20 #include <sound/initval.h>
 21 
 22 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
 23 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
 24 MODULE_LICENSE("GPL");
 25 MODULE_FIRMWARE("sb16/mulaw_main.csp");
 26 MODULE_FIRMWARE("sb16/alaw_main.csp");
 27 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
 28 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
 29 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
 30 
 31 #ifdef SNDRV_LITTLE_ENDIAN
 32 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
 33 #else
 34 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
 35 #endif
 36 
 37 #define RIFF_HEADER     CSP_HDR_VALUE('R', 'I', 'F', 'F')
 38 #define CSP__HEADER     CSP_HDR_VALUE('C', 'S', 'P', ' ')
 39 #define LIST_HEADER     CSP_HDR_VALUE('L', 'I', 'S', 'T')
 40 #define FUNC_HEADER     CSP_HDR_VALUE('f', 'u', 'n', 'c')
 41 #define CODE_HEADER     CSP_HDR_VALUE('c', 'o', 'd', 'e')
 42 #define INIT_HEADER     CSP_HDR_VALUE('i', 'n', 'i', 't')
 43 #define MAIN_HEADER     CSP_HDR_VALUE('m', 'a', 'i', 'n')
 44 
 45 /*
 46  * RIFF data format
 47  */
 48 struct riff_header {
 49         __le32 name;
 50         __le32 len;
 51 };
 52 
 53 struct desc_header {
 54         struct riff_header info;
 55         __le16 func_nr;
 56         __le16 VOC_type;
 57         __le16 flags_play_rec;
 58         __le16 flags_16bit_8bit;
 59         __le16 flags_stereo_mono;
 60         __le16 flags_rates;
 61 };
 62 
 63 /*
 64  * prototypes
 65  */
 66 static void snd_sb_csp_free(struct snd_hwdep *hw);
 67 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
 68 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
 69 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
 70 
 71 static int csp_detect(struct snd_sb *chip, int *version);
 72 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
 73 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
 74 static int read_register(struct snd_sb *chip, unsigned char reg);
 75 static int set_mode_register(struct snd_sb *chip, unsigned char mode);
 76 static int get_version(struct snd_sb *chip);
 77 
 78 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
 79                                 struct snd_sb_csp_microcode __user * code);
 80 static int snd_sb_csp_unload(struct snd_sb_csp * p);
 81 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
 82 static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);
 83 static int snd_sb_csp_check_version(struct snd_sb_csp * p);
 84 
 85 static int snd_sb_csp_use(struct snd_sb_csp * p);
 86 static int snd_sb_csp_unuse(struct snd_sb_csp * p);
 87 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
 88 static int snd_sb_csp_stop(struct snd_sb_csp * p);
 89 static int snd_sb_csp_pause(struct snd_sb_csp * p);
 90 static int snd_sb_csp_restart(struct snd_sb_csp * p);
 91 
 92 static int snd_sb_qsound_build(struct snd_sb_csp * p);
 93 static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
 94 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
 95 
 96 static int init_proc_entry(struct snd_sb_csp * p, int device);
 97 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
 98 
 99 /*
100  * Detect CSP chip and create a new instance
101  */
102 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
103 {
104         struct snd_sb_csp *p;
105         int uninitialized_var(version);
106         int err;
107         struct snd_hwdep *hw;
108 
109         if (rhwdep)
110                 *rhwdep = NULL;
111 
112         if (csp_detect(chip, &version))
113                 return -ENODEV;
114 
115         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
116                 return err;
117 
118         if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
119                 snd_device_free(chip->card, hw);
120                 return -ENOMEM;
121         }
122         p->chip = chip;
123         p->version = version;
124 
125         /* CSP operators */
126         p->ops.csp_use = snd_sb_csp_use;
127         p->ops.csp_unuse = snd_sb_csp_unuse;
128         p->ops.csp_autoload = snd_sb_csp_autoload;
129         p->ops.csp_start = snd_sb_csp_start;
130         p->ops.csp_stop = snd_sb_csp_stop;
131         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
132 
133         mutex_init(&p->access_mutex);
134         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
135         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
136         hw->private_data = p;
137         hw->private_free = snd_sb_csp_free;
138 
139         /* operators - only write/ioctl */
140         hw->ops.open = snd_sb_csp_open;
141         hw->ops.ioctl = snd_sb_csp_ioctl;
142         hw->ops.release = snd_sb_csp_release;
143 
144         /* create a proc entry */
145         init_proc_entry(p, device);
146         if (rhwdep)
147                 *rhwdep = hw;
148         return 0;
149 }
150 
151 /*
152  * free_private for hwdep instance
153  */
154 static void snd_sb_csp_free(struct snd_hwdep *hwdep)
155 {
156         int i;
157         struct snd_sb_csp *p = hwdep->private_data;
158         if (p) {
159                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
160                         snd_sb_csp_stop(p);
161                 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
162                         release_firmware(p->csp_programs[i]);
163                 kfree(p);
164         }
165 }
166 
167 /* ------------------------------ */
168 
169 /*
170  * open the device exclusively
171  */
172 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
173 {
174         struct snd_sb_csp *p = hw->private_data;
175         return (snd_sb_csp_use(p));
176 }
177 
178 /*
179  * ioctl for hwdep device:
180  */
181 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
182 {
183         struct snd_sb_csp *p = hw->private_data;
184         struct snd_sb_csp_info info;
185         struct snd_sb_csp_start start_info;
186         int err;
187 
188         if (snd_BUG_ON(!p))
189                 return -EINVAL;
190 
191         if (snd_sb_csp_check_version(p))
192                 return -ENODEV;
193 
194         switch (cmd) {
195                 /* get information */
196         case SNDRV_SB_CSP_IOCTL_INFO:
197                 memset(&info, 0, sizeof(info));
198                 *info.codec_name = *p->codec_name;
199                 info.func_nr = p->func_nr;
200                 info.acc_format = p->acc_format;
201                 info.acc_channels = p->acc_channels;
202                 info.acc_width = p->acc_width;
203                 info.acc_rates = p->acc_rates;
204                 info.csp_mode = p->mode;
205                 info.run_channels = p->run_channels;
206                 info.run_width = p->run_width;
207                 info.version = p->version;
208                 info.state = p->running;
209                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
210                         err = -EFAULT;
211                 else
212                         err = 0;
213                 break;
214 
215                 /* load CSP microcode */
216         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
217                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
218                        -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
219                 break;
220         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
221                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
222                        -EBUSY : snd_sb_csp_unload(p));
223                 break;
224 
225                 /* change CSP running state */
226         case SNDRV_SB_CSP_IOCTL_START:
227                 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
228                         err = -EFAULT;
229                 else
230                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
231                 break;
232         case SNDRV_SB_CSP_IOCTL_STOP:
233                 err = snd_sb_csp_stop(p);
234                 break;
235         case SNDRV_SB_CSP_IOCTL_PAUSE:
236                 err = snd_sb_csp_pause(p);
237                 break;
238         case SNDRV_SB_CSP_IOCTL_RESTART:
239                 err = snd_sb_csp_restart(p);
240                 break;
241         default:
242                 err = -ENOTTY;
243                 break;
244         }
245 
246         return err;
247 }
248 
249 /*
250  * close the device
251  */
252 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
253 {
254         struct snd_sb_csp *p = hw->private_data;
255         return (snd_sb_csp_unuse(p));
256 }
257 
258 /* ------------------------------ */
259 
260 /*
261  * acquire device
262  */
263 static int snd_sb_csp_use(struct snd_sb_csp * p)
264 {
265         mutex_lock(&p->access_mutex);
266         if (p->used) {
267                 mutex_unlock(&p->access_mutex);
268                 return -EAGAIN;
269         }
270         p->used++;
271         mutex_unlock(&p->access_mutex);
272 
273         return 0;
274 
275 }
276 
277 /*
278  * release device
279  */
280 static int snd_sb_csp_unuse(struct snd_sb_csp * p)
281 {
282         mutex_lock(&p->access_mutex);
283         p->used--;
284         mutex_unlock(&p->access_mutex);
285 
286         return 0;
287 }
288 
289 /*
290  * load microcode via ioctl: 
291  * code is user-space pointer
292  */
293 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
294                                 struct snd_sb_csp_microcode __user * mcode)
295 {
296         struct snd_sb_csp_mc_header info;
297 
298         unsigned char __user *data_ptr;
299         unsigned char __user *data_end;
300         unsigned short func_nr = 0;
301 
302         struct riff_header file_h, item_h, code_h;
303         __le32 item_type;
304         struct desc_header funcdesc_h;
305 
306         unsigned long flags;
307         int err;
308 
309         if (copy_from_user(&info, mcode, sizeof(info)))
310                 return -EFAULT;
311         data_ptr = mcode->data;
312 
313         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
314                 return -EFAULT;
315         if ((le32_to_cpu(file_h.name) != RIFF_HEADER) ||
316             (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
317                 snd_printd("%s: Invalid RIFF header\n", __func__);
318                 return -EINVAL;
319         }
320         data_ptr += sizeof(file_h);
321         data_end = data_ptr + le32_to_cpu(file_h.len);
322 
323         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
324                 return -EFAULT;
325         if (le32_to_cpu(item_type) != CSP__HEADER) {
326                 snd_printd("%s: Invalid RIFF file type\n", __func__);
327                 return -EINVAL;
328         }
329         data_ptr += sizeof (item_type);
330 
331         for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
332                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
333                         return -EFAULT;
334                 data_ptr += sizeof(item_h);
335                 if (le32_to_cpu(item_h.name) != LIST_HEADER)
336                         continue;
337 
338                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
339                          return -EFAULT;
340                 switch (le32_to_cpu(item_type)) {
341                 case FUNC_HEADER:
342                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
343                                 return -EFAULT;
344                         func_nr = le16_to_cpu(funcdesc_h.func_nr);
345                         break;
346                 case CODE_HEADER:
347                         if (func_nr != info.func_req)
348                                 break;  /* not required function, try next */
349                         data_ptr += sizeof(item_type);
350 
351                         /* destroy QSound mixer element */
352                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
353                                 snd_sb_qsound_destroy(p);
354                         }
355                         /* Clear all flags */
356                         p->running = 0;
357                         p->mode = 0;
358 
359                         /* load microcode blocks */
360                         for (;;) {
361                                 if (data_ptr >= data_end)
362                                         return -EINVAL;
363                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
364                                         return -EFAULT;
365 
366                                 /* init microcode blocks */
367                                 if (le32_to_cpu(code_h.name) != INIT_HEADER)
368                                         break;
369                                 data_ptr += sizeof(code_h);
370                                 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
371                                                       SNDRV_SB_CSP_LOAD_INITBLOCK);
372                                 if (err)
373                                         return err;
374                                 data_ptr += le32_to_cpu(code_h.len);
375                         }
376                         /* main microcode block */
377                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
378                                 return -EFAULT;
379 
380                         if (le32_to_cpu(code_h.name) != MAIN_HEADER) {
381                                 snd_printd("%s: Missing 'main' microcode\n", __func__);
382                                 return -EINVAL;
383                         }
384                         data_ptr += sizeof(code_h);
385                         err = snd_sb_csp_load_user(p, data_ptr,
386                                                    le32_to_cpu(code_h.len), 0);
387                         if (err)
388                                 return err;
389 
390                         /* fill in codec header */
391                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
392                         p->func_nr = func_nr;
393                         p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
394                         switch (le16_to_cpu(funcdesc_h.VOC_type)) {
395                         case 0x0001:    /* QSound decoder */
396                                 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
397                                         if (snd_sb_qsound_build(p) == 0)
398                                                 /* set QSound flag and clear all other mode flags */
399                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
400                                 }
401                                 p->acc_format = 0;
402                                 break;
403                         case 0x0006:    /* A Law codec */
404                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
405                                 break;
406                         case 0x0007:    /* Mu Law codec */
407                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
408                                 break;
409                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
410                         case 0x0200:    /* Creative ADPCM codec */
411                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
412                                 break;
413                         case    201:    /* Text 2 Speech decoder */
414                                 /* TODO: Text2Speech handling routines */
415                                 p->acc_format = 0;
416                                 break;
417                         case 0x0202:    /* Fast Speech 8 codec */
418                         case 0x0203:    /* Fast Speech 10 codec */
419                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
420                                 break;
421                         default:        /* other codecs are unsupported */
422                                 p->acc_format = p->acc_width = p->acc_rates = 0;
423                                 p->mode = 0;
424                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
425                                            __func__,
426                                            le16_to_cpu(funcdesc_h.VOC_type));
427                                 return -EINVAL;
428                         }
429                         p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
430                         p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
431                         p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
432 
433                         /* Decouple CSP from IRQ and DMAREQ lines */
434                         spin_lock_irqsave(&p->chip->reg_lock, flags);
435                         set_mode_register(p->chip, 0xfc);
436                         set_mode_register(p->chip, 0x00);
437                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
438 
439                         /* finished loading successfully */
440                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
441                         return 0;
442                 }
443         }
444         snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
445         return -EINVAL;
446 }
447 
448 /*
449  * unload CSP microcode
450  */
451 static int snd_sb_csp_unload(struct snd_sb_csp * p)
452 {
453         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
454                 return -EBUSY;
455         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
456                 return -ENXIO;
457 
458         /* clear supported formats */
459         p->acc_format = 0;
460         p->acc_channels = p->acc_width = p->acc_rates = 0;
461         /* destroy QSound mixer element */
462         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
463                 snd_sb_qsound_destroy(p);
464         }
465         /* clear all flags */
466         p->running = 0;
467         p->mode = 0;
468         return 0;
469 }
470 
471 /*
472  * send command sequence to DSP
473  */
474 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
475 {
476         int i;
477         for (i = 0; i < size; i++) {
478                 if (!snd_sbdsp_command(chip, seq[i]))
479                         return -EIO;
480         }
481         return 0;
482 }
483 
484 /*
485  * set CSP codec parameter
486  */
487 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
488 {
489         unsigned char dsp_cmd[3];
490 
491         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
492         dsp_cmd[1] = val;       /* Parameter value */
493         dsp_cmd[2] = par;       /* Parameter */
494         command_seq(chip, dsp_cmd, 3);
495         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
496         if (snd_sbdsp_get_byte(chip) != par)
497                 return -EIO;
498         return 0;
499 }
500 
501 /*
502  * set CSP register
503  */
504 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
505 {
506         unsigned char dsp_cmd[3];
507 
508         dsp_cmd[0] = 0x0e;      /* CSP set register */
509         dsp_cmd[1] = reg;       /* CSP Register */
510         dsp_cmd[2] = val;       /* value */
511         return command_seq(chip, dsp_cmd, 3);
512 }
513 
514 /*
515  * read CSP register
516  * return < 0 -> error
517  */
518 static int read_register(struct snd_sb *chip, unsigned char reg)
519 {
520         unsigned char dsp_cmd[2];
521 
522         dsp_cmd[0] = 0x0f;      /* CSP read register */
523         dsp_cmd[1] = reg;       /* CSP Register */
524         command_seq(chip, dsp_cmd, 2);
525         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
526 }
527 
528 /*
529  * set CSP mode register
530  */
531 static int set_mode_register(struct snd_sb *chip, unsigned char mode)
532 {
533         unsigned char dsp_cmd[2];
534 
535         dsp_cmd[0] = 0x04;      /* CSP set mode register */
536         dsp_cmd[1] = mode;      /* mode */
537         return command_seq(chip, dsp_cmd, 2);
538 }
539 
540 /*
541  * Detect CSP
542  * return 0 if CSP exists.
543  */
544 static int csp_detect(struct snd_sb *chip, int *version)
545 {
546         unsigned char csp_test1, csp_test2;
547         unsigned long flags;
548         int result = -ENODEV;
549 
550         spin_lock_irqsave(&chip->reg_lock, flags);
551 
552         set_codec_parameter(chip, 0x00, 0x00);
553         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
554 
555         csp_test1 = read_register(chip, 0x83);
556         set_register(chip, 0x83, ~csp_test1);
557         csp_test2 = read_register(chip, 0x83);
558         if (csp_test2 != (csp_test1 ^ 0xff))
559                 goto __fail;
560 
561         set_register(chip, 0x83, csp_test1);
562         csp_test2 = read_register(chip, 0x83);
563         if (csp_test2 != csp_test1)
564                 goto __fail;
565 
566         set_mode_register(chip, 0x00);          /* 0x00 = ? */
567 
568         *version = get_version(chip);
569         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
570         if (*version >= 0x10 && *version <= 0x1f)
571                 result = 0;             /* valid version id */
572 
573       __fail:
574         spin_unlock_irqrestore(&chip->reg_lock, flags);
575         return result;
576 }
577 
578 /*
579  * get CSP version number
580  */
581 static int get_version(struct snd_sb *chip)
582 {
583         unsigned char dsp_cmd[2];
584 
585         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
586         dsp_cmd[1] = 0x03;      /* get chip version id? */
587         command_seq(chip, dsp_cmd, 2);
588 
589         return (snd_sbdsp_get_byte(chip));
590 }
591 
592 /*
593  * check if the CSP version is valid
594  */
595 static int snd_sb_csp_check_version(struct snd_sb_csp * p)
596 {
597         if (p->version < 0x10 || p->version > 0x1f) {
598                 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
599                 return 1;
600         }
601         return 0;
602 }
603 
604 /*
605  * download microcode to CSP (microcode should have one "main" block).
606  */
607 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
608 {
609         int status, i;
610         int err;
611         int result = -EIO;
612         unsigned long flags;
613 
614         spin_lock_irqsave(&p->chip->reg_lock, flags);
615         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
616         if (snd_sbdsp_get_byte(p->chip)) {
617                 snd_printd("%s: Download command failed\n", __func__);
618                 goto __fail;
619         }
620         /* Send CSP low byte (size - 1) */
621         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
622         /* Send high byte */
623         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
624         /* send microcode sequence */
625         /* load from kernel space */
626         while (size--) {
627                 if (!snd_sbdsp_command(p->chip, *buf++))
628                         goto __fail;
629         }
630         if (snd_sbdsp_get_byte(p->chip))
631                 goto __fail;
632 
633         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
634                 i = 0;
635                 /* some codecs (FastSpeech) take some time to initialize */
636                 while (1) {
637                         snd_sbdsp_command(p->chip, 0x03);
638                         status = snd_sbdsp_get_byte(p->chip);
639                         if (status == 0x55 || ++i >= 10)
640                                 break;
641                         udelay (10);
642                 }
643                 if (status != 0x55) {
644                         snd_printd("%s: Microcode initialization failed\n", __func__);
645                         goto __fail;
646                 }
647         } else {
648                 /*
649                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
650                  * Start CSP chip if no 16bit DMA channel is set - some kind
651                  * of autorun or perhaps a bugfix?
652                  */
653                 spin_lock(&p->chip->mixer_lock);
654                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
655                 spin_unlock(&p->chip->mixer_lock);
656                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
657                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
658                                set_codec_parameter(p->chip, 0xff, 0x00));
659                         snd_sbdsp_reset(p->chip);               /* really! */
660                         if (err)
661                                 goto __fail;
662                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
663                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
664                 }
665         }
666         result = 0;
667 
668       __fail:
669         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
670         return result;
671 }
672  
673 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
674 {
675         int err;
676         unsigned char *kbuf;
677 
678         kbuf = memdup_user(buf, size);
679         if (IS_ERR(kbuf))
680                 return PTR_ERR(kbuf);
681 
682         err = snd_sb_csp_load(p, kbuf, size, load_flags);
683 
684         kfree(kbuf);
685         return err;
686 }
687 
688 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
689 {
690         static const char *const names[] = {
691                 "sb16/mulaw_main.csp",
692                 "sb16/alaw_main.csp",
693                 "sb16/ima_adpcm_init.csp",
694                 "sb16/ima_adpcm_playback.csp",
695                 "sb16/ima_adpcm_capture.csp",
696         };
697         const struct firmware *program;
698 
699         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
700         program = p->csp_programs[index];
701         if (!program) {
702                 int err = request_firmware(&program, names[index],
703                                        p->chip->card->dev);
704                 if (err < 0)
705                         return err;
706                 p->csp_programs[index] = program;
707         }
708         return snd_sb_csp_load(p, program->data, program->size, flags);
709 }
710 
711 /*
712  * autoload hardware codec if necessary
713  * return 0 if CSP is loaded and ready to run (p->running != 0)
714  */
715 static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode)
716 {
717         unsigned long flags;
718         int err = 0;
719 
720         /* if CSP is running or manually loaded then exit */
721         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) 
722                 return -EBUSY;
723 
724         /* autoload microcode only if requested hardware codec is not already loaded */
725         if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
726                 p->running = SNDRV_SB_CSP_ST_AUTO;
727         } else {
728                 switch (pcm_sfmt) {
729                 case SNDRV_PCM_FORMAT_MU_LAW:
730                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
731                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
732                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
733                         break;
734                 case SNDRV_PCM_FORMAT_A_LAW:
735                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
736                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
737                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
738                         break;
739                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
740                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
741                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
742                         if (err)
743                                 break;
744                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
745                                 err = snd_sb_csp_firmware_load
746                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
747                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
748                         } else {
749                                 err = snd_sb_csp_firmware_load
750                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
751                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
752                         }
753                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
754                         break;                            
755                 default:
756                         /* Decouple CSP from IRQ and DMAREQ lines */
757                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
758                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
759                                 set_mode_register(p->chip, 0xfc);
760                                 set_mode_register(p->chip, 0x00);
761                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
762                                 p->running = 0;                 /* clear autoloaded flag */
763                         }
764                         return -EINVAL;
765                 }
766                 if (err) {
767                         p->acc_format = 0;
768                         p->acc_channels = p->acc_width = p->acc_rates = 0;
769 
770                         p->running = 0;                         /* clear autoloaded flag */
771                         p->mode = 0;
772                         return (err);
773                 } else {
774                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
775                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
776                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
777                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
778                 }   
779 
780         }
781         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
782 }
783 
784 /*
785  * start CSP
786  */
787 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
788 {
789         unsigned char s_type;   /* sample type */
790         unsigned char mixL, mixR;
791         int result = -EIO;
792         unsigned long flags;
793 
794         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
795                 snd_printd("%s: Microcode not loaded\n", __func__);
796                 return -ENXIO;
797         }
798         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
799                 snd_printd("%s: CSP already running\n", __func__);
800                 return -EBUSY;
801         }
802         if (!(sample_width & p->acc_width)) {
803                 snd_printd("%s: Unsupported PCM sample width\n", __func__);
804                 return -EINVAL;
805         }
806         if (!(channels & p->acc_channels)) {
807                 snd_printd("%s: Invalid number of channels\n", __func__);
808                 return -EINVAL;
809         }
810 
811         /* Mute PCM volume */
812         spin_lock_irqsave(&p->chip->mixer_lock, flags);
813         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
814         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
815         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
816         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
817 
818         spin_lock(&p->chip->reg_lock);
819         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
820         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
821 
822         s_type = 0x00;
823         if (channels == SNDRV_SB_CSP_MONO)
824                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
825         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
826                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
827 
828         if (set_codec_parameter(p->chip, 0x81, s_type)) {
829                 snd_printd("%s: Set sample type command failed\n", __func__);
830                 goto __fail;
831         }
832         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
833                 snd_printd("%s: Codec start command failed\n", __func__);
834                 goto __fail;
835         }
836         p->run_width = sample_width;
837         p->run_channels = channels;
838 
839         p->running |= SNDRV_SB_CSP_ST_RUNNING;
840 
841         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
842                 set_codec_parameter(p->chip, 0xe0, 0x01);
843                 /* enable QSound decoder */
844                 set_codec_parameter(p->chip, 0x00, 0xff);
845                 set_codec_parameter(p->chip, 0x01, 0xff);
846                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
847                 /* set QSound startup value */
848                 snd_sb_csp_qsound_transfer(p);
849         }
850         result = 0;
851 
852       __fail:
853         spin_unlock(&p->chip->reg_lock);
854 
855         /* restore PCM volume */
856         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
857         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
858         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
859 
860         return result;
861 }
862 
863 /*
864  * stop CSP
865  */
866 static int snd_sb_csp_stop(struct snd_sb_csp * p)
867 {
868         int result;
869         unsigned char mixL, mixR;
870         unsigned long flags;
871 
872         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
873                 return 0;
874 
875         /* Mute PCM volume */
876         spin_lock_irqsave(&p->chip->mixer_lock, flags);
877         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
878         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
879         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
880         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
881 
882         spin_lock(&p->chip->reg_lock);
883         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
884                 set_codec_parameter(p->chip, 0xe0, 0x01);
885                 /* disable QSound decoder */
886                 set_codec_parameter(p->chip, 0x00, 0x00);
887                 set_codec_parameter(p->chip, 0x01, 0x00);
888 
889                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
890         }
891         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
892         spin_unlock(&p->chip->reg_lock);
893 
894         /* restore PCM volume */
895         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
896         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
897         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
898 
899         if (!(result))
900                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
901         return result;
902 }
903 
904 /*
905  * pause CSP codec and hold DMA transfer
906  */
907 static int snd_sb_csp_pause(struct snd_sb_csp * p)
908 {
909         int result;
910         unsigned long flags;
911 
912         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
913                 return -EBUSY;
914 
915         spin_lock_irqsave(&p->chip->reg_lock, flags);
916         result = set_codec_parameter(p->chip, 0x80, 0xff);
917         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
918         if (!(result))
919                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
920 
921         return result;
922 }
923 
924 /*
925  * restart CSP codec and resume DMA transfer
926  */
927 static int snd_sb_csp_restart(struct snd_sb_csp * p)
928 {
929         int result;
930         unsigned long flags;
931 
932         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
933                 return -EBUSY;
934 
935         spin_lock_irqsave(&p->chip->reg_lock, flags);
936         result = set_codec_parameter(p->chip, 0x80, 0x00);
937         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
938         if (!(result))
939                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
940 
941         return result;
942 }
943 
944 /* ------------------------------ */
945 
946 /*
947  * QSound mixer control for PCM
948  */
949 
950 #define snd_sb_qsound_switch_info       snd_ctl_boolean_mono_info
951 
952 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
953 {
954         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
955         
956         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
957         return 0;
958 }
959 
960 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
961 {
962         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
963         unsigned long flags;
964         int change;
965         unsigned char nval;
966         
967         nval = ucontrol->value.integer.value[0] & 0x01;
968         spin_lock_irqsave(&p->q_lock, flags);
969         change = p->q_enabled != nval;
970         p->q_enabled = nval;
971         spin_unlock_irqrestore(&p->q_lock, flags);
972         return change;
973 }
974 
975 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
976 {
977         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
978         uinfo->count = 2;
979         uinfo->value.integer.min = 0;
980         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
981         return 0;
982 }
983 
984 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
985 {
986         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
987         unsigned long flags;
988         
989         spin_lock_irqsave(&p->q_lock, flags);
990         ucontrol->value.integer.value[0] = p->qpos_left;
991         ucontrol->value.integer.value[1] = p->qpos_right;
992         spin_unlock_irqrestore(&p->q_lock, flags);
993         return 0;
994 }
995 
996 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
997 {
998         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
999         unsigned long flags;
1000         int change;
1001         unsigned char nval1, nval2;
1002         
1003         nval1 = ucontrol->value.integer.value[0];
1004         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1005                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1006         nval2 = ucontrol->value.integer.value[1];
1007         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1008                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1009         spin_lock_irqsave(&p->q_lock, flags);
1010         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1011         p->qpos_left = nval1;
1012         p->qpos_right = nval2;
1013         p->qpos_changed = change;
1014         spin_unlock_irqrestore(&p->q_lock, flags);
1015         return change;
1016 }
1017 
1018 static const struct snd_kcontrol_new snd_sb_qsound_switch = {
1019         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1020         .name = "3D Control - Switch",
1021         .info = snd_sb_qsound_switch_info,
1022         .get = snd_sb_qsound_switch_get,
1023         .put = snd_sb_qsound_switch_put
1024 };
1025 
1026 static const struct snd_kcontrol_new snd_sb_qsound_space = {
1027         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1028         .name = "3D Control - Space",
1029         .info = snd_sb_qsound_space_info,
1030         .get = snd_sb_qsound_space_get,
1031         .put = snd_sb_qsound_space_put
1032 };
1033 
1034 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1035 {
1036         struct snd_card *card;
1037         int err;
1038 
1039         if (snd_BUG_ON(!p))
1040                 return -EINVAL;
1041 
1042         card = p->chip->card;
1043         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1044         p->qpos_changed = 0;
1045 
1046         spin_lock_init(&p->q_lock);
1047 
1048         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1049                 goto __error;
1050         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1051                 goto __error;
1052 
1053         return 0;
1054 
1055      __error:
1056         snd_sb_qsound_destroy(p);
1057         return err;
1058 }
1059 
1060 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1061 {
1062         struct snd_card *card;
1063         unsigned long flags;
1064 
1065         if (snd_BUG_ON(!p))
1066                 return;
1067 
1068         card = p->chip->card;   
1069         
1070         down_write(&card->controls_rwsem);
1071         if (p->qsound_switch)
1072                 snd_ctl_remove(card, p->qsound_switch);
1073         if (p->qsound_space)
1074                 snd_ctl_remove(card, p->qsound_space);
1075         up_write(&card->controls_rwsem);
1076 
1077         /* cancel pending transfer of QSound parameters */
1078         spin_lock_irqsave (&p->q_lock, flags);
1079         p->qpos_changed = 0;
1080         spin_unlock_irqrestore (&p->q_lock, flags);
1081 }
1082 
1083 /*
1084  * Transfer qsound parameters to CSP,
1085  * function should be called from interrupt routine
1086  */
1087 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1088 {
1089         int err = -ENXIO;
1090 
1091         spin_lock(&p->q_lock);
1092         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1093                 set_codec_parameter(p->chip, 0xe0, 0x01);
1094                 /* left channel */
1095                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1096                 set_codec_parameter(p->chip, 0x02, 0x00);
1097                 /* right channel */
1098                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1099                 set_codec_parameter(p->chip, 0x03, 0x00);
1100                 err = 0;
1101         }
1102         p->qpos_changed = 0;
1103         spin_unlock(&p->q_lock);
1104         return err;
1105 }
1106 
1107 /* ------------------------------ */
1108 
1109 /*
1110  * proc interface
1111  */
1112 static int init_proc_entry(struct snd_sb_csp * p, int device)
1113 {
1114         char name[16];
1115 
1116         sprintf(name, "cspD%d", device);
1117         snd_card_ro_proc_new(p->chip->card, name, p, info_read);
1118         return 0;
1119 }
1120 
1121 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1122 {
1123         struct snd_sb_csp *p = entry->private_data;
1124 
1125         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1126         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1127                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1128                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1129                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1130         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1131                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1132                 snd_iprintf(buffer, "Sample rates: ");
1133                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1134                         snd_iprintf(buffer, "All\n");
1135                 } else {
1136                         snd_iprintf(buffer, "%s%s%s%s\n",
1137                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1138                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1139                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1140                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1141                 }
1142                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1143                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1144                                     p->q_enabled ? "en" : "dis");
1145                 } else {
1146                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1147                                     p->acc_format,
1148                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1149                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1150                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1151                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1152                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1153                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1154                 }
1155         }
1156         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1157                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1158         }
1159         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1160                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1161                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1162                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1163         }
1164         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1165                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1166                             p->qpos_left, p->qpos_right);
1167         }
1168 }
1169 
1170 /* */
1171 
1172 EXPORT_SYMBOL(snd_sb_csp_new);
1173 

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