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TOMOYO Linux Cross Reference
Linux/sound/pci/asihpi/asihpi.c

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  Asihpi soundcard
  3  *  Copyright (c) by AudioScience Inc <alsa@audioscience.com>
  4  *
  5  *   This program is free software; you can redistribute it and/or modify
  6  *   it under the terms of version 2 of the GNU General Public License as
  7  *   published by the Free Software Foundation;
  8  *
  9  *   This program is distributed in the hope that it will be useful,
 10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  *   GNU General Public License for more details.
 13  *
 14  *   You should have received a copy of the GNU General Public License
 15  *   along with this program; if not, write to the Free Software
 16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 17  *
 18  *
 19  *  The following is not a condition of use, merely a request:
 20  *  If you modify this program, particularly if you fix errors, AudioScience Inc
 21  *  would appreciate it if you grant us the right to use those modifications
 22  *  for any purpose including commercial applications.
 23  */
 24 
 25 #include "hpi_internal.h"
 26 #include "hpi_version.h"
 27 #include "hpimsginit.h"
 28 #include "hpioctl.h"
 29 #include "hpicmn.h"
 30 
 31 
 32 #include <linux/pci.h>
 33 #include <linux/init.h>
 34 #include <linux/jiffies.h>
 35 #include <linux/slab.h>
 36 #include <linux/time.h>
 37 #include <linux/wait.h>
 38 #include <linux/module.h>
 39 #include <sound/core.h>
 40 #include <sound/control.h>
 41 #include <sound/pcm.h>
 42 #include <sound/pcm_params.h>
 43 #include <sound/info.h>
 44 #include <sound/initval.h>
 45 #include <sound/tlv.h>
 46 #include <sound/hwdep.h>
 47 
 48 MODULE_LICENSE("GPL");
 49 MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
 50 MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx "
 51                         HPI_VER_STRING);
 52 
 53 #if defined CONFIG_SND_DEBUG_VERBOSE
 54 /**
 55  * snd_printddd - very verbose debug printk
 56  * @format: format string
 57  *
 58  * Works like snd_printk() for debugging purposes.
 59  * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
 60  * Must set snd module debug parameter to 3 to enable at runtime.
 61  */
 62 #define snd_printddd(format, args...) \
 63         __snd_printk(3, __FILE__, __LINE__, format, ##args)
 64 #else
 65 #define snd_printddd(format, args...) do { } while (0)
 66 #endif
 67 
 68 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* index 0-MAX */
 69 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 70 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 71 static bool enable_hpi_hwdep = 1;
 72 
 73 module_param_array(index, int, NULL, S_IRUGO);
 74 MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
 75 
 76 module_param_array(id, charp, NULL, S_IRUGO);
 77 MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
 78 
 79 module_param_array(enable, bool, NULL, S_IRUGO);
 80 MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
 81 
 82 module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
 83 MODULE_PARM_DESC(enable_hpi_hwdep,
 84                 "ALSA enable HPI hwdep for AudioScience soundcard ");
 85 
 86 /* identify driver */
 87 #ifdef KERNEL_ALSA_BUILD
 88 static char *build_info = "Built using headers from kernel source";
 89 module_param(build_info, charp, S_IRUGO);
 90 MODULE_PARM_DESC(build_info, "built using headers from kernel source");
 91 #else
 92 static char *build_info = "Built within ALSA source";
 93 module_param(build_info, charp, S_IRUGO);
 94 MODULE_PARM_DESC(build_info, "built within ALSA source");
 95 #endif
 96 
 97 /* set to 1 to dump every control from adapter to log */
 98 static const int mixer_dump;
 99 
100 #define DEFAULT_SAMPLERATE 44100
101 static int adapter_fs = DEFAULT_SAMPLERATE;
102 
103 /* defaults */
104 #define PERIODS_MIN 2
105 #define PERIOD_BYTES_MIN  2048
106 #define BUFFER_BYTES_MAX (512 * 1024)
107 
108 #define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
109 
110 struct clk_source {
111         int source;
112         int index;
113         char *name;
114 };
115 
116 struct clk_cache {
117         int count;
118         int has_local;
119         struct clk_source s[MAX_CLOCKSOURCES];
120 };
121 
122 /* Per card data */
123 struct snd_card_asihpi {
124         struct snd_card *card;
125         struct pci_dev *pci;
126         struct hpi_adapter *hpi;
127 
128         u32 h_mixer;
129         struct clk_cache cc;
130 
131         u16 can_dma;
132         u16 support_grouping;
133         u16 support_mrx;
134         u16 update_interval_frames;
135         u16 in_max_chans;
136         u16 out_max_chans;
137         u16 in_min_chans;
138         u16 out_min_chans;
139 };
140 
141 /* Per stream data */
142 struct snd_card_asihpi_pcm {
143         struct timer_list timer;
144         unsigned int respawn_timer;
145         unsigned int hpi_buffer_attached;
146         unsigned int buffer_bytes;
147         unsigned int period_bytes;
148         unsigned int bytes_per_sec;
149         unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
150         unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
151         unsigned int pcm_buf_elapsed_dma_ofs;   /* DMA R/W offset in buffer */
152         unsigned int drained_count;
153         struct snd_pcm_substream *substream;
154         u32 h_stream;
155         struct hpi_format format;
156 };
157 
158 /* universal stream verbs work with out or in stream handles */
159 
160 /* Functions to allow driver to give a buffer to HPI for busmastering */
161 
162 static u16 hpi_stream_host_buffer_attach(
163         u32 h_stream,   /* handle to outstream. */
164         u32 size_in_bytes, /* size in bytes of bus mastering buffer */
165         u32 pci_address
166 )
167 {
168         struct hpi_message hm;
169         struct hpi_response hr;
170         unsigned int obj = hpi_handle_object(h_stream);
171 
172         if (!h_stream)
173                 return HPI_ERROR_INVALID_OBJ;
174         hpi_init_message_response(&hm, &hr, obj,
175                         obj == HPI_OBJ_OSTREAM ?
176                                 HPI_OSTREAM_HOSTBUFFER_ALLOC :
177                                 HPI_ISTREAM_HOSTBUFFER_ALLOC);
178 
179         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
180                                 &hm.obj_index);
181 
182         hm.u.d.u.buffer.buffer_size = size_in_bytes;
183         hm.u.d.u.buffer.pci_address = pci_address;
184         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
185         hpi_send_recv(&hm, &hr);
186         return hr.error;
187 }
188 
189 static u16 hpi_stream_host_buffer_detach(u32  h_stream)
190 {
191         struct hpi_message hm;
192         struct hpi_response hr;
193         unsigned int obj = hpi_handle_object(h_stream);
194 
195         if (!h_stream)
196                 return HPI_ERROR_INVALID_OBJ;
197 
198         hpi_init_message_response(&hm, &hr,  obj,
199                         obj == HPI_OBJ_OSTREAM ?
200                                 HPI_OSTREAM_HOSTBUFFER_FREE :
201                                 HPI_ISTREAM_HOSTBUFFER_FREE);
202 
203         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
204                                 &hm.obj_index);
205         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
206         hpi_send_recv(&hm, &hr);
207         return hr.error;
208 }
209 
210 static inline u16 hpi_stream_start(u32 h_stream)
211 {
212         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
213                 return hpi_outstream_start(h_stream);
214         else
215                 return hpi_instream_start(h_stream);
216 }
217 
218 static inline u16 hpi_stream_stop(u32 h_stream)
219 {
220         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
221                 return hpi_outstream_stop(h_stream);
222         else
223                 return hpi_instream_stop(h_stream);
224 }
225 
226 static inline u16 hpi_stream_get_info_ex(
227     u32 h_stream,
228     u16        *pw_state,
229     u32        *pbuffer_size,
230     u32        *pdata_in_buffer,
231     u32        *psample_count,
232     u32        *pauxiliary_data
233 )
234 {
235         u16 e;
236         if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
237                 e = hpi_outstream_get_info_ex(h_stream, pw_state,
238                                         pbuffer_size, pdata_in_buffer,
239                                         psample_count, pauxiliary_data);
240         else
241                 e = hpi_instream_get_info_ex(h_stream, pw_state,
242                                         pbuffer_size, pdata_in_buffer,
243                                         psample_count, pauxiliary_data);
244         return e;
245 }
246 
247 static inline u16 hpi_stream_group_add(
248                                         u32 h_master,
249                                         u32 h_stream)
250 {
251         if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
252                 return hpi_outstream_group_add(h_master, h_stream);
253         else
254                 return hpi_instream_group_add(h_master, h_stream);
255 }
256 
257 static inline u16 hpi_stream_group_reset(u32 h_stream)
258 {
259         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
260                 return hpi_outstream_group_reset(h_stream);
261         else
262                 return hpi_instream_group_reset(h_stream);
263 }
264 
265 static inline u16 hpi_stream_group_get_map(
266                                 u32 h_stream, u32 *mo, u32 *mi)
267 {
268         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
269                 return hpi_outstream_group_get_map(h_stream, mo, mi);
270         else
271                 return hpi_instream_group_get_map(h_stream, mo, mi);
272 }
273 
274 static u16 handle_error(u16 err, int line, char *filename)
275 {
276         if (err)
277                 printk(KERN_WARNING
278                         "in file %s, line %d: HPI error %d\n",
279                         filename, line, err);
280         return err;
281 }
282 
283 #define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
284 
285 /***************************** GENERAL PCM ****************/
286 
287 static void print_hwparams(struct snd_pcm_substream *substream,
288                                 struct snd_pcm_hw_params *p)
289 {
290         char name[16];
291         snd_pcm_debug_name(substream, name, sizeof(name));
292         snd_printd("%s HWPARAMS\n", name);
293         snd_printd(" samplerate %d Hz\n", params_rate(p));
294         snd_printd(" channels %d\n", params_channels(p));
295         snd_printd(" format %d\n", params_format(p));
296         snd_printd(" subformat %d\n", params_subformat(p));
297         snd_printd(" buffer %d B\n", params_buffer_bytes(p));
298         snd_printd(" period %d B\n", params_period_bytes(p));
299         snd_printd(" access %d\n", params_access(p));
300         snd_printd(" period_size %d\n", params_period_size(p));
301         snd_printd(" periods %d\n", params_periods(p));
302         snd_printd(" buffer_size %d\n", params_buffer_size(p));
303         snd_printd(" %d B/s\n", params_rate(p) *
304                 params_channels(p) *
305                 snd_pcm_format_width(params_format(p)) / 8);
306 
307 }
308 
309 static snd_pcm_format_t hpi_to_alsa_formats[] = {
310         -1,                     /* INVALID */
311         SNDRV_PCM_FORMAT_U8,    /* HPI_FORMAT_PCM8_UNSIGNED        1 */
312         SNDRV_PCM_FORMAT_S16,   /* HPI_FORMAT_PCM16_SIGNED         2 */
313         -1,                     /* HPI_FORMAT_MPEG_L1              3 */
314         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L2              4 */
315         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L3              5 */
316         -1,                     /* HPI_FORMAT_DOLBY_AC2            6 */
317         -1,                     /* HPI_FORMAT_DOLBY_AC3            7 */
318         SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN      8 */
319         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS       9 */
320         -1,                     /* HPI_FORMAT_AA_TAGIT1_INSERTS   10 */
321         SNDRV_PCM_FORMAT_S32,   /* HPI_FORMAT_PCM32_SIGNED        11 */
322         -1,                     /* HPI_FORMAT_RAW_BITSTREAM       12 */
323         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS_EX1  13 */
324         SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT         14 */
325 #if 1
326         /* ALSA can't handle 3 byte sample size together with power-of-2
327          *  constraint on buffer_bytes, so disable this format
328          */
329         -1
330 #else
331         /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
332 #endif
333 };
334 
335 
336 static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
337                                            u16 *hpi_format)
338 {
339         u16 format;
340 
341         for (format = HPI_FORMAT_PCM8_UNSIGNED;
342              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
343                 if (hpi_to_alsa_formats[format] == alsa_format) {
344                         *hpi_format = format;
345                         return 0;
346                 }
347         }
348 
349         snd_printd(KERN_WARNING "failed match for alsa format %d\n",
350                    alsa_format);
351         *hpi_format = 0;
352         return -EINVAL;
353 }
354 
355 static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
356                                          struct snd_pcm_hardware *pcmhw)
357 {
358         u16 err;
359         u32 h_control;
360         u32 sample_rate;
361         int idx;
362         unsigned int rate_min = 200000;
363         unsigned int rate_max = 0;
364         unsigned int rates = 0;
365 
366         if (asihpi->support_mrx) {
367                 rates |= SNDRV_PCM_RATE_CONTINUOUS;
368                 rates |= SNDRV_PCM_RATE_8000_96000;
369                 rate_min = 8000;
370                 rate_max = 100000;
371         } else {
372                 /* on cards without SRC,
373                    valid rates are determined by sampleclock */
374                 err = hpi_mixer_get_control(asihpi->h_mixer,
375                                           HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
376                                           HPI_CONTROL_SAMPLECLOCK, &h_control);
377                 if (err) {
378                         snd_printk(KERN_ERR
379                                 "No local sampleclock, err %d\n", err);
380                 }
381 
382                 for (idx = -1; idx < 100; idx++) {
383                         if (idx == -1) {
384                                 if (hpi_sample_clock_get_sample_rate(h_control,
385                                                                 &sample_rate))
386                                         continue;
387                         } else if (hpi_sample_clock_query_local_rate(h_control,
388                                                         idx, &sample_rate)) {
389                                 break;
390                         }
391 
392                         rate_min = min(rate_min, sample_rate);
393                         rate_max = max(rate_max, sample_rate);
394 
395                         switch (sample_rate) {
396                         case 5512:
397                                 rates |= SNDRV_PCM_RATE_5512;
398                                 break;
399                         case 8000:
400                                 rates |= SNDRV_PCM_RATE_8000;
401                                 break;
402                         case 11025:
403                                 rates |= SNDRV_PCM_RATE_11025;
404                                 break;
405                         case 16000:
406                                 rates |= SNDRV_PCM_RATE_16000;
407                                 break;
408                         case 22050:
409                                 rates |= SNDRV_PCM_RATE_22050;
410                                 break;
411                         case 32000:
412                                 rates |= SNDRV_PCM_RATE_32000;
413                                 break;
414                         case 44100:
415                                 rates |= SNDRV_PCM_RATE_44100;
416                                 break;
417                         case 48000:
418                                 rates |= SNDRV_PCM_RATE_48000;
419                                 break;
420                         case 64000:
421                                 rates |= SNDRV_PCM_RATE_64000;
422                                 break;
423                         case 88200:
424                                 rates |= SNDRV_PCM_RATE_88200;
425                                 break;
426                         case 96000:
427                                 rates |= SNDRV_PCM_RATE_96000;
428                                 break;
429                         case 176400:
430                                 rates |= SNDRV_PCM_RATE_176400;
431                                 break;
432                         case 192000:
433                                 rates |= SNDRV_PCM_RATE_192000;
434                                 break;
435                         default: /* some other rate */
436                                 rates |= SNDRV_PCM_RATE_KNOT;
437                         }
438                 }
439         }
440 
441         pcmhw->rates = rates;
442         pcmhw->rate_min = rate_min;
443         pcmhw->rate_max = rate_max;
444 }
445 
446 static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
447                                          struct snd_pcm_hw_params *params)
448 {
449         struct snd_pcm_runtime *runtime = substream->runtime;
450         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
451         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
452         int err;
453         u16 format;
454         int width;
455         unsigned int bytes_per_sec;
456 
457         print_hwparams(substream, params);
458         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
459         if (err < 0)
460                 return err;
461         err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
462         if (err)
463                 return err;
464 
465         hpi_handle_error(hpi_format_create(&dpcm->format,
466                         params_channels(params),
467                         format, params_rate(params), 0, 0));
468 
469         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
470                 if (hpi_instream_reset(dpcm->h_stream) != 0)
471                         return -EINVAL;
472 
473                 if (hpi_instream_set_format(
474                         dpcm->h_stream, &dpcm->format) != 0)
475                         return -EINVAL;
476         }
477 
478         dpcm->hpi_buffer_attached = 0;
479         if (card->can_dma) {
480                 err = hpi_stream_host_buffer_attach(dpcm->h_stream,
481                         params_buffer_bytes(params),  runtime->dma_addr);
482                 if (err == 0) {
483                         snd_printdd(
484                                 "stream_host_buffer_attach succeeded %u %lu\n",
485                                 params_buffer_bytes(params),
486                                 (unsigned long)runtime->dma_addr);
487                 } else {
488                         snd_printd("stream_host_buffer_attach error %d\n",
489                                         err);
490                         return -ENOMEM;
491                 }
492 
493                 err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
494                                                 &dpcm->hpi_buffer_attached,
495                                                 NULL, NULL, NULL);
496 
497                 snd_printdd("stream_host_buffer_attach status 0x%x\n",
498                                 dpcm->hpi_buffer_attached);
499 
500         }
501         bytes_per_sec = params_rate(params) * params_channels(params);
502         width = snd_pcm_format_width(params_format(params));
503         bytes_per_sec *= width;
504         bytes_per_sec /= 8;
505         if (width < 0 || bytes_per_sec == 0)
506                 return -EINVAL;
507 
508         dpcm->bytes_per_sec = bytes_per_sec;
509         dpcm->buffer_bytes = params_buffer_bytes(params);
510         dpcm->period_bytes = params_period_bytes(params);
511 
512         return 0;
513 }
514 
515 static int
516 snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
517 {
518         struct snd_pcm_runtime *runtime = substream->runtime;
519         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
520         if (dpcm->hpi_buffer_attached)
521                 hpi_stream_host_buffer_detach(dpcm->h_stream);
522 
523         snd_pcm_lib_free_pages(substream);
524         return 0;
525 }
526 
527 static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
528 {
529         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
530         kfree(dpcm);
531 }
532 
533 static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
534                                             substream)
535 {
536         struct snd_pcm_runtime *runtime = substream->runtime;
537         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
538         int expiry;
539 
540         expiry = HZ / 200;
541         /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
542         expiry = max(expiry, 1); /* don't let it be zero! */
543         dpcm->timer.expires = jiffies + expiry;
544         dpcm->respawn_timer = 1;
545         add_timer(&dpcm->timer);
546 }
547 
548 static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
549 {
550         struct snd_pcm_runtime *runtime = substream->runtime;
551         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
552 
553         dpcm->respawn_timer = 0;
554         del_timer(&dpcm->timer);
555 }
556 
557 static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
558                                            int cmd)
559 {
560         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
561         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
562         struct snd_pcm_substream *s;
563         u16 e;
564         char name[16];
565 
566         snd_pcm_debug_name(substream, name, sizeof(name));
567         snd_printdd("%s trigger\n", name);
568 
569         switch (cmd) {
570         case SNDRV_PCM_TRIGGER_START:
571                 snd_pcm_group_for_each_entry(s, substream) {
572                         struct snd_pcm_runtime *runtime = s->runtime;
573                         struct snd_card_asihpi_pcm *ds = runtime->private_data;
574 
575                         if (snd_pcm_substream_chip(s) != card)
576                                 continue;
577 
578                         /* don't link Cap and Play */
579                         if (substream->stream != s->stream)
580                                 continue;
581 
582                         ds->drained_count = 0;
583                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
584                                 /* How do I know how much valid data is present
585                                 * in buffer? Must be at least one period!
586                                 * Guessing 2 periods, but if
587                                 * buffer is bigger it may contain even more
588                                 * data??
589                                 */
590                                 unsigned int preload = ds->period_bytes * 1;
591                                 snd_printddd("%d preload x%x\n", s->number, preload);
592                                 hpi_handle_error(hpi_outstream_write_buf(
593                                                 ds->h_stream,
594                                                 &runtime->dma_area[0],
595                                                 preload,
596                                                 &ds->format));
597                                 ds->pcm_buf_host_rw_ofs = preload;
598                         }
599 
600                         if (card->support_grouping) {
601                                 snd_printdd("%d group\n", s->number);
602                                 e = hpi_stream_group_add(
603                                         dpcm->h_stream,
604                                         ds->h_stream);
605                                 if (!e) {
606                                         snd_pcm_trigger_done(s, substream);
607                                 } else {
608                                         hpi_handle_error(e);
609                                         break;
610                                 }
611                         } else
612                                 break;
613                 }
614                 snd_printdd("start\n");
615                 /* start the master stream */
616                 snd_card_asihpi_pcm_timer_start(substream);
617                 if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
618                         !card->can_dma)
619                         hpi_handle_error(hpi_stream_start(dpcm->h_stream));
620                 break;
621 
622         case SNDRV_PCM_TRIGGER_STOP:
623                 snd_card_asihpi_pcm_timer_stop(substream);
624                 snd_pcm_group_for_each_entry(s, substream) {
625                         if (snd_pcm_substream_chip(s) != card)
626                                 continue;
627                         /* don't link Cap and Play */
628                         if (substream->stream != s->stream)
629                                 continue;
630 
631                         /*? workaround linked streams don't
632                         transition to SETUP 20070706*/
633                         s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
634 
635                         if (card->support_grouping) {
636                                 snd_printdd("%d group\n", s->number);
637                                 snd_pcm_trigger_done(s, substream);
638                         } else
639                                 break;
640                 }
641                 snd_printdd("stop\n");
642 
643                 /* _prepare and _hwparams reset the stream */
644                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
645                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
646                         hpi_handle_error(
647                                 hpi_outstream_reset(dpcm->h_stream));
648 
649                 if (card->support_grouping)
650                         hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
651                 break;
652 
653         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
654                 snd_printdd("pause release\n");
655                 hpi_handle_error(hpi_stream_start(dpcm->h_stream));
656                 snd_card_asihpi_pcm_timer_start(substream);
657                 break;
658         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
659                 snd_printdd("pause\n");
660                 snd_card_asihpi_pcm_timer_stop(substream);
661                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
662                 break;
663         default:
664                 snd_printd(KERN_ERR "\tINVALID\n");
665                 return -EINVAL;
666         }
667 
668         return 0;
669 }
670 
671 /*algorithm outline
672  Without linking degenerates to getting single stream pos etc
673  Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
674 */
675 /*
676 pcm_buf_dma_ofs=get_buf_pos(s);
677 for_each_linked_stream(s) {
678         pcm_buf_dma_ofs=get_buf_pos(s);
679         min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
680         new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
681 }
682 timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
683 for_each_linked_stream(s) {
684         s->pcm_buf_dma_ofs = min_buf_pos;
685         if (new_data > period_bytes) {
686                 if (mmap) {
687                         irq_pos = (irq_pos + period_bytes) % buffer_bytes;
688                         if (playback) {
689                                 write(period_bytes);
690                         } else {
691                                 read(period_bytes);
692                         }
693                 }
694                 snd_pcm_period_elapsed(s);
695         }
696 }
697 */
698 
699 /** Minimum of 2 modulo values.  Works correctly when the difference between
700 * the values is less than half the modulus
701 */
702 static inline unsigned int modulo_min(unsigned int a, unsigned int b,
703                                         unsigned long int modulus)
704 {
705         unsigned int result;
706         if (((a-b) % modulus) < (modulus/2))
707                 result = b;
708         else
709                 result = a;
710 
711         return result;
712 }
713 
714 /** Timer function, equivalent to interrupt service routine for cards
715 */
716 static void snd_card_asihpi_timer_function(unsigned long data)
717 {
718         struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
719         struct snd_pcm_substream *substream = dpcm->substream;
720         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
721         struct snd_pcm_runtime *runtime;
722         struct snd_pcm_substream *s;
723         unsigned int newdata = 0;
724         unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
725         unsigned int remdata, xfercount, next_jiffies;
726         int first = 1;
727         int loops = 0;
728         u16 state;
729         u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
730         char name[16];
731 
732         snd_pcm_debug_name(substream, name, sizeof(name));
733 
734         snd_printdd("%s snd_card_asihpi_timer_function\n", name);
735 
736         /* find minimum newdata and buffer pos in group */
737         snd_pcm_group_for_each_entry(s, substream) {
738                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
739                 runtime = s->runtime;
740 
741                 if (snd_pcm_substream_chip(s) != card)
742                         continue;
743 
744                 /* don't link Cap and Play */
745                 if (substream->stream != s->stream)
746                         continue;
747 
748                 hpi_handle_error(hpi_stream_get_info_ex(
749                                         ds->h_stream, &state,
750                                         &buffer_size, &bytes_avail,
751                                         &samples_played, &on_card_bytes));
752 
753                 /* number of bytes in on-card buffer */
754                 runtime->delay = on_card_bytes;
755 
756                 if (!card->can_dma)
757                         on_card_bytes = bytes_avail;
758 
759                 if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
760                         pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
761                         if (state == HPI_STATE_STOPPED) {
762                                 if (bytes_avail == 0) {
763                                         hpi_handle_error(hpi_stream_start(ds->h_stream));
764                                         snd_printdd("P%d start\n", s->number);
765                                         ds->drained_count = 0;
766                                 }
767                         } else if (state == HPI_STATE_DRAINED) {
768                                 snd_printd(KERN_WARNING "P%d drained\n",
769                                                 s->number);
770                                 ds->drained_count++;
771                                 if (ds->drained_count > 20) {
772                                         unsigned long flags;
773                                         snd_pcm_stream_lock_irqsave(s, flags);
774                                         snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
775                                         snd_pcm_stream_unlock_irqrestore(s, flags);
776                                         continue;
777                                 }
778                         } else {
779                                 ds->drained_count = 0;
780                         }
781                 } else
782                         pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
783 
784                 if (first) {
785                         /* can't statically init min when wrap is involved */
786                         min_buf_pos = pcm_buf_dma_ofs;
787                         newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
788                         first = 0;
789                 } else {
790                         min_buf_pos =
791                                 modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
792                         newdata = min(
793                                 (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
794                                 newdata);
795                 }
796 
797                 snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
798                         (unsigned long)frames_to_bytes(runtime,
799                                                 runtime->status->hw_ptr),
800                         (unsigned long)frames_to_bytes(runtime,
801                                                 runtime->control->appl_ptr));
802 
803                 snd_printdd("%d S=%d, "
804                         "rw=0x%04X, dma=0x%04X, left=0x%04X, "
805                         "aux=0x%04X space=0x%04X\n",
806                         s->number, state,
807                         ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
808                         (int)bytes_avail,
809                         (int)on_card_bytes, buffer_size-bytes_avail);
810                 loops++;
811         }
812         pcm_buf_dma_ofs = min_buf_pos;
813 
814         remdata = newdata % dpcm->period_bytes;
815         xfercount = newdata - remdata; /* a multiple of period_bytes */
816         /* come back when on_card_bytes has decreased enough to allow
817            write to happen, or when data has been consumed to make another
818            period
819         */
820         if (xfercount && (on_card_bytes  > dpcm->period_bytes))
821                 next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
822         else
823                 next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
824 
825         next_jiffies = max(next_jiffies, 1U);
826         dpcm->timer.expires = jiffies + next_jiffies;
827         snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
828                         next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
829 
830         snd_pcm_group_for_each_entry(s, substream) {
831                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
832 
833                 /* don't link Cap and Play */
834                 if (substream->stream != s->stream)
835                         continue;
836 
837                 ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
838 
839                 if (xfercount &&
840                         /* Limit use of on card fifo for playback */
841                         ((on_card_bytes <= ds->period_bytes) ||
842                         (s->stream == SNDRV_PCM_STREAM_CAPTURE)))
843 
844                 {
845 
846                         unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes;
847                         unsigned int xfer1, xfer2;
848                         char *pd = &s->runtime->dma_area[buf_ofs];
849 
850                         if (card->can_dma) { /* buffer wrap is handled at lower level */
851                                 xfer1 = xfercount;
852                                 xfer2 = 0;
853                         } else {
854                                 xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs);
855                                 xfer2 = xfercount - xfer1;
856                         }
857 
858                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
859                                 snd_printddd("P%d write1 0x%04X 0x%04X\n",
860                                         s->number, xfer1, buf_ofs);
861                                 hpi_handle_error(
862                                         hpi_outstream_write_buf(
863                                                 ds->h_stream, pd, xfer1,
864                                                 &ds->format));
865 
866                                 if (xfer2) {
867                                         pd = s->runtime->dma_area;
868 
869                                         snd_printddd("P%d write2 0x%04X 0x%04X\n",
870                                                         s->number,
871                                                         xfercount - xfer1, buf_ofs);
872                                         hpi_handle_error(
873                                                 hpi_outstream_write_buf(
874                                                         ds->h_stream, pd,
875                                                         xfercount - xfer1,
876                                                         &ds->format));
877                                 }
878                         } else {
879                                 snd_printddd("C%d read1 0x%04x\n",
880                                         s->number, xfer1);
881                                 hpi_handle_error(
882                                         hpi_instream_read_buf(
883                                                 ds->h_stream,
884                                                 pd, xfer1));
885                                 if (xfer2) {
886                                         pd = s->runtime->dma_area;
887                                         snd_printddd("C%d read2 0x%04x\n",
888                                                 s->number, xfer2);
889                                         hpi_handle_error(
890                                                 hpi_instream_read_buf(
891                                                         ds->h_stream,
892                                                         pd, xfer2));
893                                 }
894                         }
895                         ds->pcm_buf_host_rw_ofs += xfercount;
896                         ds->pcm_buf_elapsed_dma_ofs += xfercount;
897                         snd_pcm_period_elapsed(s);
898                 }
899         }
900 
901         if (dpcm->respawn_timer)
902                 add_timer(&dpcm->timer);
903 }
904 
905 /***************************** PLAYBACK OPS ****************/
906 static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
907                                           unsigned int cmd, void *arg)
908 {
909         char name[16];
910         snd_pcm_debug_name(substream, name, sizeof(name));
911         snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd);
912         return snd_pcm_lib_ioctl(substream, cmd, arg);
913 }
914 
915 static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
916                                             substream)
917 {
918         struct snd_pcm_runtime *runtime = substream->runtime;
919         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
920 
921         snd_printdd("P%d prepare\n", substream->number);
922 
923         hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
924         dpcm->pcm_buf_host_rw_ofs = 0;
925         dpcm->pcm_buf_dma_ofs = 0;
926         dpcm->pcm_buf_elapsed_dma_ofs = 0;
927         return 0;
928 }
929 
930 static snd_pcm_uframes_t
931 snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
932 {
933         struct snd_pcm_runtime *runtime = substream->runtime;
934         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
935         snd_pcm_uframes_t ptr;
936         char name[16];
937         snd_pcm_debug_name(substream, name, sizeof(name));
938 
939         ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
940         snd_printddd("%s pointer = 0x%04lx\n", name, (unsigned long)ptr);
941         return ptr;
942 }
943 
944 static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi,
945                                                 u32 h_stream)
946 {
947         struct hpi_format hpi_format;
948         u16 format;
949         u16 err;
950         u32 h_control;
951         u32 sample_rate = 48000;
952         u64 formats = 0;
953 
954         /* on cards without SRC, must query at valid rate,
955         * maybe set by external sync
956         */
957         err = hpi_mixer_get_control(asihpi->h_mixer,
958                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
959                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
960 
961         if (!err)
962                 err = hpi_sample_clock_get_sample_rate(h_control,
963                                 &sample_rate);
964 
965         for (format = HPI_FORMAT_PCM8_UNSIGNED;
966              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
967                 err = hpi_format_create(&hpi_format, asihpi->out_max_chans,
968                                         format, sample_rate, 128000, 0);
969                 if (!err)
970                         err = hpi_outstream_query_format(h_stream, &hpi_format);
971                 if (!err && (hpi_to_alsa_formats[format] != -1))
972                         formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
973         }
974         return formats;
975 }
976 
977 static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
978 {
979         struct snd_pcm_runtime *runtime = substream->runtime;
980         struct snd_card_asihpi_pcm *dpcm;
981         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
982         struct snd_pcm_hardware snd_card_asihpi_playback;
983         int err;
984 
985         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
986         if (dpcm == NULL)
987                 return -ENOMEM;
988 
989         err = hpi_outstream_open(card->hpi->adapter->index,
990                               substream->number, &dpcm->h_stream);
991         hpi_handle_error(err);
992         if (err)
993                 kfree(dpcm);
994         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
995                 return -EBUSY;
996         if (err)
997                 return -EIO;
998 
999         /*? also check ASI5000 samplerate source
1000             If external, only support external rate.
1001             If internal and other stream playing, can't switch
1002         */
1003 
1004         init_timer(&dpcm->timer);
1005         dpcm->timer.data = (unsigned long) dpcm;
1006         dpcm->timer.function = snd_card_asihpi_timer_function;
1007         dpcm->substream = substream;
1008         runtime->private_data = dpcm;
1009         runtime->private_free = snd_card_asihpi_runtime_free;
1010 
1011         memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback));
1012         snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
1013         snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
1014         /*?snd_card_asihpi_playback.period_bytes_min =
1015         card->out_max_chans * 4096; */
1016         snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1017         snd_card_asihpi_playback.periods_min = PERIODS_MIN;
1018         snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1019         /* snd_card_asihpi_playback.fifo_size = 0; */
1020         snd_card_asihpi_playback.channels_max = card->out_max_chans;
1021         snd_card_asihpi_playback.channels_min = card->out_min_chans;
1022         snd_card_asihpi_playback.formats =
1023                         snd_card_asihpi_playback_formats(card, dpcm->h_stream);
1024 
1025         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_playback);
1026 
1027         snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
1028                                         SNDRV_PCM_INFO_DOUBLE |
1029                                         SNDRV_PCM_INFO_BATCH |
1030                                         SNDRV_PCM_INFO_BLOCK_TRANSFER |
1031                                         SNDRV_PCM_INFO_PAUSE |
1032                                         SNDRV_PCM_INFO_MMAP |
1033                                         SNDRV_PCM_INFO_MMAP_VALID;
1034 
1035         if (card->support_grouping) {
1036                 snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
1037                 snd_pcm_set_sync(substream);
1038         }
1039 
1040         /* struct is copied, so can create initializer dynamically */
1041         runtime->hw = snd_card_asihpi_playback;
1042 
1043         if (card->can_dma)
1044                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1045                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1046         if (err < 0)
1047                 return err;
1048 
1049         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1050                 card->update_interval_frames);
1051 
1052         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1053                 card->update_interval_frames * 2, UINT_MAX);
1054 
1055         snd_printdd("playback open\n");
1056 
1057         return 0;
1058 }
1059 
1060 static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
1061 {
1062         struct snd_pcm_runtime *runtime = substream->runtime;
1063         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1064 
1065         hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1066         snd_printdd("playback close\n");
1067 
1068         return 0;
1069 }
1070 
1071 static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
1072         .open = snd_card_asihpi_playback_open,
1073         .close = snd_card_asihpi_playback_close,
1074         .ioctl = snd_card_asihpi_playback_ioctl,
1075         .hw_params = snd_card_asihpi_pcm_hw_params,
1076         .hw_free = snd_card_asihpi_hw_free,
1077         .prepare = snd_card_asihpi_playback_prepare,
1078         .trigger = snd_card_asihpi_trigger,
1079         .pointer = snd_card_asihpi_playback_pointer,
1080 };
1081 
1082 /***************************** CAPTURE OPS ****************/
1083 static snd_pcm_uframes_t
1084 snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
1085 {
1086         struct snd_pcm_runtime *runtime = substream->runtime;
1087         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1088 
1089         snd_printddd("capture pointer %d=%d\n",
1090                         substream->number, dpcm->pcm_buf_dma_ofs);
1091         /* NOTE Unlike playback can't use actual samples_played
1092                 for the capture position, because those samples aren't yet in
1093                 the local buffer available for reading.
1094         */
1095         return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1096 }
1097 
1098 static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
1099                                          unsigned int cmd, void *arg)
1100 {
1101         return snd_pcm_lib_ioctl(substream, cmd, arg);
1102 }
1103 
1104 static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
1105 {
1106         struct snd_pcm_runtime *runtime = substream->runtime;
1107         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1108 
1109         hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1110         dpcm->pcm_buf_host_rw_ofs = 0;
1111         dpcm->pcm_buf_dma_ofs = 0;
1112         dpcm->pcm_buf_elapsed_dma_ofs = 0;
1113 
1114         snd_printdd("Capture Prepare %d\n", substream->number);
1115         return 0;
1116 }
1117 
1118 
1119 
1120 static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
1121                                         u32 h_stream)
1122 {
1123   struct hpi_format hpi_format;
1124         u16 format;
1125         u16 err;
1126         u32 h_control;
1127         u32 sample_rate = 48000;
1128         u64 formats = 0;
1129 
1130         /* on cards without SRC, must query at valid rate,
1131                 maybe set by external sync */
1132         err = hpi_mixer_get_control(asihpi->h_mixer,
1133                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
1134                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
1135 
1136         if (!err)
1137                 err = hpi_sample_clock_get_sample_rate(h_control,
1138                         &sample_rate);
1139 
1140         for (format = HPI_FORMAT_PCM8_UNSIGNED;
1141                 format <= HPI_FORMAT_PCM24_SIGNED; format++) {
1142 
1143                 err = hpi_format_create(&hpi_format, asihpi->in_max_chans,
1144                                         format, sample_rate, 128000, 0);
1145                 if (!err)
1146                         err = hpi_instream_query_format(h_stream, &hpi_format);
1147                 if (!err && (hpi_to_alsa_formats[format] != -1))
1148                         formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
1149         }
1150         return formats;
1151 }
1152 
1153 static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
1154 {
1155         struct snd_pcm_runtime *runtime = substream->runtime;
1156         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1157         struct snd_card_asihpi_pcm *dpcm;
1158         struct snd_pcm_hardware snd_card_asihpi_capture;
1159         int err;
1160 
1161         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1162         if (dpcm == NULL)
1163                 return -ENOMEM;
1164 
1165         snd_printdd("capture open adapter %d stream %d\n",
1166                         card->hpi->adapter->index, substream->number);
1167 
1168         err = hpi_handle_error(
1169             hpi_instream_open(card->hpi->adapter->index,
1170                              substream->number, &dpcm->h_stream));
1171         if (err)
1172                 kfree(dpcm);
1173         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1174                 return -EBUSY;
1175         if (err)
1176                 return -EIO;
1177 
1178         init_timer(&dpcm->timer);
1179         dpcm->timer.data = (unsigned long) dpcm;
1180         dpcm->timer.function = snd_card_asihpi_timer_function;
1181         dpcm->substream = substream;
1182         runtime->private_data = dpcm;
1183         runtime->private_free = snd_card_asihpi_runtime_free;
1184 
1185         memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture));
1186         snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
1187         snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
1188         snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1189         snd_card_asihpi_capture.periods_min = PERIODS_MIN;
1190         snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1191         /* snd_card_asihpi_capture.fifo_size = 0; */
1192         snd_card_asihpi_capture.channels_max = card->in_max_chans;
1193         snd_card_asihpi_capture.channels_min = card->in_min_chans;
1194         snd_card_asihpi_capture.formats =
1195                 snd_card_asihpi_capture_formats(card, dpcm->h_stream);
1196         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1197         snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
1198                                         SNDRV_PCM_INFO_MMAP |
1199                                         SNDRV_PCM_INFO_MMAP_VALID;
1200 
1201         if (card->support_grouping)
1202                 snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
1203 
1204         runtime->hw = snd_card_asihpi_capture;
1205 
1206         if (card->can_dma)
1207                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1208                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1209         if (err < 0)
1210                 return err;
1211 
1212         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1213                 card->update_interval_frames);
1214         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1215                 card->update_interval_frames * 2, UINT_MAX);
1216 
1217         snd_pcm_set_sync(substream);
1218 
1219         return 0;
1220 }
1221 
1222 static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
1223 {
1224         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
1225 
1226         hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1227         return 0;
1228 }
1229 
1230 static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
1231         .open = snd_card_asihpi_capture_open,
1232         .close = snd_card_asihpi_capture_close,
1233         .ioctl = snd_card_asihpi_capture_ioctl,
1234         .hw_params = snd_card_asihpi_pcm_hw_params,
1235         .hw_free = snd_card_asihpi_hw_free,
1236         .prepare = snd_card_asihpi_capture_prepare,
1237         .trigger = snd_card_asihpi_trigger,
1238         .pointer = snd_card_asihpi_capture_pointer,
1239 };
1240 
1241 static int snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, int device)
1242 {
1243         struct snd_pcm *pcm;
1244         int err;
1245         u16 num_instreams, num_outstreams, x16;
1246         u32 x32;
1247 
1248         err = hpi_adapter_get_info(asihpi->hpi->adapter->index,
1249                         &num_outstreams, &num_instreams,
1250                         &x16, &x32, &x16);
1251 
1252         err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1253                         num_outstreams, num_instreams, &pcm);
1254         if (err < 0)
1255                 return err;
1256         /* pointer to ops struct is stored, dont change ops afterwards! */
1257                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1258                                 &snd_card_asihpi_playback_mmap_ops);
1259                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1260                                 &snd_card_asihpi_capture_mmap_ops);
1261 
1262         pcm->private_data = asihpi;
1263         pcm->info_flags = 0;
1264         strcpy(pcm->name, "Asihpi PCM");
1265 
1266         /*? do we want to emulate MMAP for non-BBM cards?
1267         Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
1268         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1269                                                 snd_dma_pci_data(asihpi->pci),
1270                                                 64*1024, BUFFER_BYTES_MAX);
1271 
1272         return 0;
1273 }
1274 
1275 /***************************** MIXER CONTROLS ****************/
1276 struct hpi_control {
1277         u32 h_control;
1278         u16 control_type;
1279         u16 src_node_type;
1280         u16 src_node_index;
1281         u16 dst_node_type;
1282         u16 dst_node_index;
1283         u16 band;
1284         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* copied to snd_ctl_elem_id.name[44]; */
1285 };
1286 
1287 static const char * const asihpi_tuner_band_names[] = {
1288         "invalid",
1289         "AM",
1290         "FM mono",
1291         "TV NTSC-M",
1292         "FM stereo",
1293         "AUX",
1294         "TV PAL BG",
1295         "TV PAL I",
1296         "TV PAL DK",
1297         "TV SECAM",
1298 };
1299 
1300 compile_time_assert(
1301         (ARRAY_SIZE(asihpi_tuner_band_names) ==
1302                 (HPI_TUNER_BAND_LAST+1)),
1303         assert_tuner_band_names_size);
1304 
1305 static const char * const asihpi_src_names[] = {
1306         "no source",
1307         "PCM",
1308         "Line",
1309         "Digital",
1310         "Tuner",
1311         "RF",
1312         "Clock",
1313         "Bitstream",
1314         "Mic",
1315         "Net",
1316         "Analog",
1317         "Adapter",
1318         "RTP",
1319         "Internal"
1320 };
1321 
1322 compile_time_assert(
1323         (ARRAY_SIZE(asihpi_src_names) ==
1324                 (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1325         assert_src_names_size);
1326 
1327 static const char * const asihpi_dst_names[] = {
1328         "no destination",
1329         "PCM",
1330         "Line",
1331         "Digital",
1332         "RF",
1333         "Speaker",
1334         "Net",
1335         "Analog",
1336         "RTP",
1337 };
1338 
1339 compile_time_assert(
1340         (ARRAY_SIZE(asihpi_dst_names) ==
1341                 (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1342         assert_dst_names_size);
1343 
1344 static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
1345                                 struct snd_card_asihpi *asihpi)
1346 {
1347         int err;
1348 
1349         err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
1350         if (err < 0)
1351                 return err;
1352         else if (mixer_dump)
1353                 snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
1354 
1355         return 0;
1356 }
1357 
1358 /* Convert HPI control name and location into ALSA control name */
1359 static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
1360                                 struct hpi_control *hpi_ctl,
1361                                 char *name)
1362 {
1363         char *dir;
1364         memset(snd_control, 0, sizeof(*snd_control));
1365         snd_control->name = hpi_ctl->name;
1366         snd_control->private_value = hpi_ctl->h_control;
1367         snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1368         snd_control->index = 0;
1369 
1370         if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE)
1371                 dir = ""; /* clock is neither capture nor playback */
1372         else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
1373                 dir = "Capture ";  /* On or towards a PCM capture destination*/
1374         else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1375                 (!hpi_ctl->dst_node_type))
1376                 dir = "Capture "; /* On a source node that is not PCM playback */
1377         else if (hpi_ctl->src_node_type &&
1378                 (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1379                 (hpi_ctl->dst_node_type))
1380                 dir = "Monitor Playback "; /* Between an input and an output */
1381         else
1382                 dir = "Playback "; /* PCM Playback source, or  output node */
1383 
1384         if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1385                 sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1386                         asihpi_src_names[hpi_ctl->src_node_type],
1387                         hpi_ctl->src_node_index,
1388                         asihpi_dst_names[hpi_ctl->dst_node_type],
1389                         hpi_ctl->dst_node_index,
1390                         dir, name);
1391         else if (hpi_ctl->dst_node_type) {
1392                 sprintf(hpi_ctl->name, "%s %d %s%s",
1393                 asihpi_dst_names[hpi_ctl->dst_node_type],
1394                 hpi_ctl->dst_node_index,
1395                 dir, name);
1396         } else {
1397                 sprintf(hpi_ctl->name, "%s %d %s%s",
1398                 asihpi_src_names[hpi_ctl->src_node_type],
1399                 hpi_ctl->src_node_index,
1400                 dir, name);
1401         }
1402         /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
1403                 hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1404 }
1405 
1406 /*------------------------------------------------------------
1407    Volume controls
1408  ------------------------------------------------------------*/
1409 #define VOL_STEP_mB 1
1410 static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
1411                                   struct snd_ctl_elem_info *uinfo)
1412 {
1413         u32 h_control = kcontrol->private_value;
1414         u32 count;
1415         u16 err;
1416         /* native gains are in millibels */
1417         short min_gain_mB;
1418         short max_gain_mB;
1419         short step_gain_mB;
1420 
1421         err = hpi_volume_query_range(h_control,
1422                         &min_gain_mB, &max_gain_mB, &step_gain_mB);
1423         if (err) {
1424                 max_gain_mB = 0;
1425                 min_gain_mB = -10000;
1426                 step_gain_mB = VOL_STEP_mB;
1427         }
1428 
1429         err = hpi_meter_query_channels(h_control, &count);
1430         if (err)
1431                 count = HPI_MAX_CHANNELS;
1432 
1433         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1434         uinfo->count = count;
1435         uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
1436         uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
1437         uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
1438         return 0;
1439 }
1440 
1441 static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
1442                                  struct snd_ctl_elem_value *ucontrol)
1443 {
1444         u32 h_control = kcontrol->private_value;
1445         short an_gain_mB[HPI_MAX_CHANNELS];
1446 
1447         hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1448         ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
1449         ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
1450 
1451         return 0;
1452 }
1453 
1454 static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
1455                                  struct snd_ctl_elem_value *ucontrol)
1456 {
1457         int change;
1458         u32 h_control = kcontrol->private_value;
1459         short an_gain_mB[HPI_MAX_CHANNELS];
1460 
1461         an_gain_mB[0] =
1462             (ucontrol->value.integer.value[0]) * VOL_STEP_mB;
1463         an_gain_mB[1] =
1464             (ucontrol->value.integer.value[1]) * VOL_STEP_mB;
1465         /*  change = asihpi->mixer_volume[addr][0] != left ||
1466            asihpi->mixer_volume[addr][1] != right;
1467          */
1468         change = 1;
1469         hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1470         return change;
1471 }
1472 
1473 static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
1474 
1475 #define snd_asihpi_volume_mute_info     snd_ctl_boolean_mono_info
1476 
1477 static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol,
1478                                  struct snd_ctl_elem_value *ucontrol)
1479 {
1480         u32 h_control = kcontrol->private_value;
1481         u32 mute;
1482 
1483         hpi_handle_error(hpi_volume_get_mute(h_control, &mute));
1484         ucontrol->value.integer.value[0] = mute ? 0 : 1;
1485 
1486         return 0;
1487 }
1488 
1489 static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol,
1490                                  struct snd_ctl_elem_value *ucontrol)
1491 {
1492         u32 h_control = kcontrol->private_value;
1493         int change = 1;
1494         /* HPI currently only supports all or none muting of multichannel volume
1495         ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted
1496         */
1497         int mute =  ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS;
1498         hpi_handle_error(hpi_volume_set_mute(h_control, mute));
1499         return change;
1500 }
1501 
1502 static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
1503                                  struct hpi_control *hpi_ctl)
1504 {
1505         struct snd_card *card = asihpi->card;
1506         struct snd_kcontrol_new snd_control;
1507         int err;
1508         u32 mute;
1509 
1510         asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1511         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1512                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1513         snd_control.info = snd_asihpi_volume_info;
1514         snd_control.get = snd_asihpi_volume_get;
1515         snd_control.put = snd_asihpi_volume_put;
1516         snd_control.tlv.p = db_scale_100;
1517 
1518         err = ctl_add(card, &snd_control, asihpi);
1519         if (err)
1520                 return err;
1521 
1522         if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) {
1523                 asihpi_ctl_init(&snd_control, hpi_ctl, "Switch");
1524                 snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1525                 snd_control.info = snd_asihpi_volume_mute_info;
1526                 snd_control.get = snd_asihpi_volume_mute_get;
1527                 snd_control.put = snd_asihpi_volume_mute_put;
1528                 err = ctl_add(card, &snd_control, asihpi);
1529         }
1530         return err;
1531 }
1532 
1533 /*------------------------------------------------------------
1534    Level controls
1535  ------------------------------------------------------------*/
1536 static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
1537                                  struct snd_ctl_elem_info *uinfo)
1538 {
1539         u32 h_control = kcontrol->private_value;
1540         u16 err;
1541         short min_gain_mB;
1542         short max_gain_mB;
1543         short step_gain_mB;
1544 
1545         err =
1546             hpi_level_query_range(h_control, &min_gain_mB,
1547                                &max_gain_mB, &step_gain_mB);
1548         if (err) {
1549                 max_gain_mB = 2400;
1550                 min_gain_mB = -1000;
1551                 step_gain_mB = 100;
1552         }
1553 
1554         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1555         uinfo->count = 2;
1556         uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
1557         uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
1558         uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
1559         return 0;
1560 }
1561 
1562 static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
1563                                 struct snd_ctl_elem_value *ucontrol)
1564 {
1565         u32 h_control = kcontrol->private_value;
1566         short an_gain_mB[HPI_MAX_CHANNELS];
1567 
1568         hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1569         ucontrol->value.integer.value[0] =
1570             an_gain_mB[0] / HPI_UNITS_PER_dB;
1571         ucontrol->value.integer.value[1] =
1572             an_gain_mB[1] / HPI_UNITS_PER_dB;
1573 
1574         return 0;
1575 }
1576 
1577 static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
1578                                 struct snd_ctl_elem_value *ucontrol)
1579 {
1580         int change;
1581         u32 h_control = kcontrol->private_value;
1582         short an_gain_mB[HPI_MAX_CHANNELS];
1583 
1584         an_gain_mB[0] =
1585             (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1586         an_gain_mB[1] =
1587             (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
1588         /*  change = asihpi->mixer_level[addr][0] != left ||
1589            asihpi->mixer_level[addr][1] != right;
1590          */
1591         change = 1;
1592         hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1593         return change;
1594 }
1595 
1596 static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
1597 
1598 static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
1599                                 struct hpi_control *hpi_ctl)
1600 {
1601         struct snd_card *card = asihpi->card;
1602         struct snd_kcontrol_new snd_control;
1603 
1604         /* can't use 'volume' cos some nodes have volume as well */
1605         asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1606         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1607                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1608         snd_control.info = snd_asihpi_level_info;
1609         snd_control.get = snd_asihpi_level_get;
1610         snd_control.put = snd_asihpi_level_put;
1611         snd_control.tlv.p = db_scale_level;
1612 
1613         return ctl_add(card, &snd_control, asihpi);
1614 }
1615 
1616 /*------------------------------------------------------------
1617    AESEBU controls
1618  ------------------------------------------------------------*/
1619 
1620 /* AESEBU format */
1621 static const char * const asihpi_aesebu_format_names[] = {
1622         "N/A", "S/PDIF", "AES/EBU" };
1623 
1624 static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
1625                                   struct snd_ctl_elem_info *uinfo)
1626 {
1627         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1628         uinfo->count = 1;
1629         uinfo->value.enumerated.items = 3;
1630 
1631         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1632                 uinfo->value.enumerated.item =
1633                         uinfo->value.enumerated.items - 1;
1634 
1635         strcpy(uinfo->value.enumerated.name,
1636                 asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
1637 
1638         return 0;
1639 }
1640 
1641 static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
1642                         struct snd_ctl_elem_value *ucontrol,
1643                         u16 (*func)(u32, u16 *))
1644 {
1645         u32 h_control = kcontrol->private_value;
1646         u16 source, err;
1647 
1648         err = func(h_control, &source);
1649 
1650         /* default to N/A */
1651         ucontrol->value.enumerated.item[0] = 0;
1652         /* return success but set the control to N/A */
1653         if (err)
1654                 return 0;
1655         if (source == HPI_AESEBU_FORMAT_SPDIF)
1656                 ucontrol->value.enumerated.item[0] = 1;
1657         if (source == HPI_AESEBU_FORMAT_AESEBU)
1658                 ucontrol->value.enumerated.item[0] = 2;
1659 
1660         return 0;
1661 }
1662 
1663 static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
1664                         struct snd_ctl_elem_value *ucontrol,
1665                          u16 (*func)(u32, u16))
1666 {
1667         u32 h_control = kcontrol->private_value;
1668 
1669         /* default to S/PDIF */
1670         u16 source = HPI_AESEBU_FORMAT_SPDIF;
1671 
1672         if (ucontrol->value.enumerated.item[0] == 1)
1673                 source = HPI_AESEBU_FORMAT_SPDIF;
1674         if (ucontrol->value.enumerated.item[0] == 2)
1675                 source = HPI_AESEBU_FORMAT_AESEBU;
1676 
1677         if (func(h_control, source) != 0)
1678                 return -EINVAL;
1679 
1680         return 1;
1681 }
1682 
1683 static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
1684                                  struct snd_ctl_elem_value *ucontrol) {
1685         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1686                                         hpi_aesebu_receiver_get_format);
1687 }
1688 
1689 static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
1690                                  struct snd_ctl_elem_value *ucontrol) {
1691         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1692                                         hpi_aesebu_receiver_set_format);
1693 }
1694 
1695 static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
1696                                   struct snd_ctl_elem_info *uinfo)
1697 {
1698         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1699         uinfo->count = 1;
1700 
1701         uinfo->value.integer.min = 0;
1702         uinfo->value.integer.max = 0X1F;
1703         uinfo->value.integer.step = 1;
1704 
1705         return 0;
1706 }
1707 
1708 static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
1709                                  struct snd_ctl_elem_value *ucontrol) {
1710 
1711         u32 h_control = kcontrol->private_value;
1712         u16 status;
1713 
1714         hpi_handle_error(hpi_aesebu_receiver_get_error_status(
1715                                          h_control, &status));
1716         ucontrol->value.integer.value[0] = status;
1717         return 0;
1718 }
1719 
1720 static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
1721                                     struct hpi_control *hpi_ctl)
1722 {
1723         struct snd_card *card = asihpi->card;
1724         struct snd_kcontrol_new snd_control;
1725 
1726         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1727         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1728         snd_control.info = snd_asihpi_aesebu_format_info;
1729         snd_control.get = snd_asihpi_aesebu_rx_format_get;
1730         snd_control.put = snd_asihpi_aesebu_rx_format_put;
1731 
1732 
1733         if (ctl_add(card, &snd_control, asihpi) < 0)
1734                 return -EINVAL;
1735 
1736         asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1737         snd_control.access =
1738             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
1739         snd_control.info = snd_asihpi_aesebu_rxstatus_info;
1740         snd_control.get = snd_asihpi_aesebu_rxstatus_get;
1741 
1742         return ctl_add(card, &snd_control, asihpi);
1743 }
1744 
1745 static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
1746                                  struct snd_ctl_elem_value *ucontrol) {
1747         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1748                                         hpi_aesebu_transmitter_get_format);
1749 }
1750 
1751 static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
1752                                  struct snd_ctl_elem_value *ucontrol) {
1753         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1754                                         hpi_aesebu_transmitter_set_format);
1755 }
1756 
1757 
1758 static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
1759                                     struct hpi_control *hpi_ctl)
1760 {
1761         struct snd_card *card = asihpi->card;
1762         struct snd_kcontrol_new snd_control;
1763 
1764         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1765         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1766         snd_control.info = snd_asihpi_aesebu_format_info;
1767         snd_control.get = snd_asihpi_aesebu_tx_format_get;
1768         snd_control.put = snd_asihpi_aesebu_tx_format_put;
1769 
1770         return ctl_add(card, &snd_control, asihpi);
1771 }
1772 
1773 /*------------------------------------------------------------
1774    Tuner controls
1775  ------------------------------------------------------------*/
1776 
1777 /* Gain */
1778 
1779 static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
1780                                   struct snd_ctl_elem_info *uinfo)
1781 {
1782         u32 h_control = kcontrol->private_value;
1783         u16 err;
1784         short idx;
1785         u16 gain_range[3];
1786 
1787         for (idx = 0; idx < 3; idx++) {
1788                 err = hpi_tuner_query_gain(h_control,
1789                                           idx, &gain_range[idx]);
1790                 if (err != 0)
1791                         return err;
1792         }
1793 
1794         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1795         uinfo->count = 1;
1796         uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
1797         uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
1798         uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
1799         return 0;
1800 }
1801 
1802 static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
1803                                  struct snd_ctl_elem_value *ucontrol)
1804 {
1805         /*
1806         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1807         */
1808         u32 h_control = kcontrol->private_value;
1809         short gain;
1810 
1811         hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1812         ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
1813 
1814         return 0;
1815 }
1816 
1817 static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
1818                                  struct snd_ctl_elem_value *ucontrol)
1819 {
1820         /*
1821         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1822         */
1823         u32 h_control = kcontrol->private_value;
1824         short gain;
1825 
1826         gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1827         hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1828 
1829         return 1;
1830 }
1831 
1832 /* Band  */
1833 
1834 static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
1835                                         u16 *band_list, u32 len) {
1836         u32 h_control = kcontrol->private_value;
1837         u16 err = 0;
1838         u32 i;
1839 
1840         for (i = 0; i < len; i++) {
1841                 err = hpi_tuner_query_band(
1842                                 h_control, i, &band_list[i]);
1843                 if (err != 0)
1844                         break;
1845         }
1846 
1847         if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
1848                 return -EIO;
1849 
1850         return i;
1851 }
1852 
1853 static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
1854                                   struct snd_ctl_elem_info *uinfo)
1855 {
1856         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1857         int num_bands = 0;
1858 
1859         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1860                                 HPI_TUNER_BAND_LAST);
1861 
1862         if (num_bands < 0)
1863                 return num_bands;
1864 
1865         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1866         uinfo->count = 1;
1867         uinfo->value.enumerated.items = num_bands;
1868 
1869         if (num_bands > 0) {
1870                 if (uinfo->value.enumerated.item >=
1871                                         uinfo->value.enumerated.items)
1872                         uinfo->value.enumerated.item =
1873                                 uinfo->value.enumerated.items - 1;
1874 
1875                 strcpy(uinfo->value.enumerated.name,
1876                         asihpi_tuner_band_names[
1877                                 tuner_bands[uinfo->value.enumerated.item]]);
1878 
1879         }
1880         return 0;
1881 }
1882 
1883 static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
1884                                  struct snd_ctl_elem_value *ucontrol)
1885 {
1886         u32 h_control = kcontrol->private_value;
1887         /*
1888         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1889         */
1890         u16 band, idx;
1891         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1892         u32 num_bands = 0;
1893 
1894         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1895                                 HPI_TUNER_BAND_LAST);
1896 
1897         hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1898 
1899         ucontrol->value.enumerated.item[0] = -1;
1900         for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
1901                 if (tuner_bands[idx] == band) {
1902                         ucontrol->value.enumerated.item[0] = idx;
1903                         break;
1904                 }
1905 
1906         return 0;
1907 }
1908 
1909 static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
1910                                  struct snd_ctl_elem_value *ucontrol)
1911 {
1912         /*
1913         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1914         */
1915         u32 h_control = kcontrol->private_value;
1916         unsigned int idx;
1917         u16 band;
1918         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1919         u32 num_bands = 0;
1920 
1921         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1922                         HPI_TUNER_BAND_LAST);
1923 
1924         idx = ucontrol->value.enumerated.item[0];
1925         if (idx >= ARRAY_SIZE(tuner_bands))
1926                 idx = ARRAY_SIZE(tuner_bands) - 1;
1927         band = tuner_bands[idx];
1928         hpi_handle_error(hpi_tuner_set_band(h_control, band));
1929 
1930         return 1;
1931 }
1932 
1933 /* Freq */
1934 
1935 static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol,
1936                                   struct snd_ctl_elem_info *uinfo)
1937 {
1938         u32 h_control = kcontrol->private_value;
1939         u16 err;
1940         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1941         u16 num_bands = 0, band_iter, idx;
1942         u32 freq_range[3], temp_freq_range[3];
1943 
1944         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1945                         HPI_TUNER_BAND_LAST);
1946 
1947         freq_range[0] = INT_MAX;
1948         freq_range[1] = 0;
1949         freq_range[2] = INT_MAX;
1950 
1951         for (band_iter = 0; band_iter < num_bands; band_iter++) {
1952                 for (idx = 0; idx < 3; idx++) {
1953                         err = hpi_tuner_query_frequency(h_control,
1954                                 idx, tuner_bands[band_iter],
1955                                 &temp_freq_range[idx]);
1956                         if (err != 0)
1957                                 return err;
1958                 }
1959 
1960                 /* skip band with bogus stepping */
1961                 if (temp_freq_range[2] <= 0)
1962                         continue;
1963 
1964                 if (temp_freq_range[0] < freq_range[0])
1965                         freq_range[0] = temp_freq_range[0];
1966                 if (temp_freq_range[1] > freq_range[1])
1967                         freq_range[1] = temp_freq_range[1];
1968                 if (temp_freq_range[2] < freq_range[2])
1969                         freq_range[2] = temp_freq_range[2];
1970         }
1971 
1972         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1973         uinfo->count = 1;
1974         uinfo->value.integer.min = ((int)freq_range[0]);
1975         uinfo->value.integer.max = ((int)freq_range[1]);
1976         uinfo->value.integer.step = ((int)freq_range[2]);
1977         return 0;
1978 }
1979 
1980 static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol,
1981                                  struct snd_ctl_elem_value *ucontrol)
1982 {
1983         u32 h_control = kcontrol->private_value;
1984         u32 freq;
1985 
1986         hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
1987         ucontrol->value.integer.value[0] = freq;
1988 
1989         return 0;
1990 }
1991 
1992 static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
1993                                  struct snd_ctl_elem_value *ucontrol)
1994 {
1995         u32 h_control = kcontrol->private_value;
1996         u32 freq;
1997 
1998         freq = ucontrol->value.integer.value[0];
1999         hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
2000 
2001         return 1;
2002 }
2003 
2004 /* Tuner control group initializer  */
2005 static int snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
2006                                 struct hpi_control *hpi_ctl)
2007 {
2008         struct snd_card *card = asihpi->card;
2009         struct snd_kcontrol_new snd_control;
2010 
2011         snd_control.private_value = hpi_ctl->h_control;
2012         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2013 
2014         if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
2015                 asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
2016                 snd_control.info = snd_asihpi_tuner_gain_info;
2017                 snd_control.get = snd_asihpi_tuner_gain_get;
2018                 snd_control.put = snd_asihpi_tuner_gain_put;
2019 
2020                 if (ctl_add(card, &snd_control, asihpi) < 0)
2021                         return -EINVAL;
2022         }
2023 
2024         asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
2025         snd_control.info = snd_asihpi_tuner_band_info;
2026         snd_control.get = snd_asihpi_tuner_band_get;
2027         snd_control.put = snd_asihpi_tuner_band_put;
2028 
2029         if (ctl_add(card, &snd_control, asihpi) < 0)
2030                 return -EINVAL;
2031 
2032         asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
2033         snd_control.info = snd_asihpi_tuner_freq_info;
2034         snd_control.get = snd_asihpi_tuner_freq_get;
2035         snd_control.put = snd_asihpi_tuner_freq_put;
2036 
2037         return ctl_add(card, &snd_control, asihpi);
2038 }
2039 
2040 /*------------------------------------------------------------
2041    Meter controls
2042  ------------------------------------------------------------*/
2043 static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,
2044                                  struct snd_ctl_elem_info *uinfo)
2045 {
2046         u32 h_control = kcontrol->private_value;
2047         u32 count;
2048         u16 err;
2049         err = hpi_meter_query_channels(h_control, &count);
2050         if (err)
2051                 count = HPI_MAX_CHANNELS;
2052 
2053         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2054         uinfo->count = count;
2055         uinfo->value.integer.min = 0;
2056         uinfo->value.integer.max = 0x7FFFFFFF;
2057         return 0;
2058 }
2059 
2060 /* linear values for 10dB steps */
2061 static int log2lin[] = {
2062         0x7FFFFFFF, /* 0dB */
2063         679093956,
2064         214748365,
2065          67909396,
2066          21474837,
2067           6790940,
2068           2147484, /* -60dB */
2069            679094,
2070            214748, /* -80 */
2071             67909,
2072             21475, /* -100 */
2073              6791,
2074              2147,
2075               679,
2076               214,
2077                68,
2078                21,
2079                 7,
2080                 2
2081 };
2082 
2083 static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
2084                                 struct snd_ctl_elem_value *ucontrol)
2085 {
2086         u32 h_control = kcontrol->private_value;
2087         short an_gain_mB[HPI_MAX_CHANNELS], i;
2088         u16 err;
2089 
2090         err = hpi_meter_get_peak(h_control, an_gain_mB);
2091 
2092         for (i = 0; i < HPI_MAX_CHANNELS; i++) {
2093                 if (err) {
2094                         ucontrol->value.integer.value[i] = 0;
2095                 } else if (an_gain_mB[i] >= 0) {
2096                         ucontrol->value.integer.value[i] =
2097                                 an_gain_mB[i] << 16;
2098                 } else {
2099                         /* -ve is log value in millibels < -60dB,
2100                         * convert to (roughly!) linear,
2101                         */
2102                         ucontrol->value.integer.value[i] =
2103                                         log2lin[an_gain_mB[i] / -1000];
2104                 }
2105         }
2106         return 0;
2107 }
2108 
2109 static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
2110                                 struct hpi_control *hpi_ctl, int subidx)
2111 {
2112         struct snd_card *card = asihpi->card;
2113         struct snd_kcontrol_new snd_control;
2114 
2115         asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2116         snd_control.access =
2117             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2118         snd_control.info = snd_asihpi_meter_info;
2119         snd_control.get = snd_asihpi_meter_get;
2120 
2121         snd_control.index = subidx;
2122 
2123         return ctl_add(card, &snd_control, asihpi);
2124 }
2125 
2126 /*------------------------------------------------------------
2127    Multiplexer controls
2128  ------------------------------------------------------------*/
2129 static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
2130 {
2131         u32 h_control = snd_control->private_value;
2132         struct hpi_control hpi_ctl;
2133         int s, err;
2134         for (s = 0; s < 32; s++) {
2135                 err = hpi_multiplexer_query_source(h_control, s,
2136                                                   &hpi_ctl.
2137                                                   src_node_type,
2138                                                   &hpi_ctl.
2139                                                   src_node_index);
2140                 if (err)
2141                         break;
2142         }
2143         return s;
2144 }
2145 
2146 static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
2147                                struct snd_ctl_elem_info *uinfo)
2148 {
2149         int err;
2150         u16 src_node_type, src_node_index;
2151         u32 h_control = kcontrol->private_value;
2152 
2153         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2154         uinfo->count = 1;
2155         uinfo->value.enumerated.items =
2156             snd_card_asihpi_mux_count_sources(kcontrol);
2157 
2158         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2159                 uinfo->value.enumerated.item =
2160                     uinfo->value.enumerated.items - 1;
2161 
2162         err =
2163             hpi_multiplexer_query_source(h_control,
2164                                         uinfo->value.enumerated.item,
2165                                         &src_node_type, &src_node_index);
2166 
2167         sprintf(uinfo->value.enumerated.name, "%s %d",
2168                 asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2169                 src_node_index);
2170         return 0;
2171 }
2172 
2173 static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
2174                               struct snd_ctl_elem_value *ucontrol)
2175 {
2176         u32 h_control = kcontrol->private_value;
2177         u16 source_type, source_index;
2178         u16 src_node_type, src_node_index;
2179         int s;
2180 
2181         hpi_handle_error(hpi_multiplexer_get_source(h_control,
2182                                 &source_type, &source_index));
2183         /* Should cache this search result! */
2184         for (s = 0; s < 256; s++) {
2185                 if (hpi_multiplexer_query_source(h_control, s,
2186                                             &src_node_type, &src_node_index))
2187                         break;
2188 
2189                 if ((source_type == src_node_type)
2190                     && (source_index == src_node_index)) {
2191                         ucontrol->value.enumerated.item[0] = s;
2192                         return 0;
2193                 }
2194         }
2195         snd_printd(KERN_WARNING
2196                 "Control %x failed to match mux source %hu %hu\n",
2197                 h_control, source_type, source_index);
2198         ucontrol->value.enumerated.item[0] = 0;
2199         return 0;
2200 }
2201 
2202 static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
2203                               struct snd_ctl_elem_value *ucontrol)
2204 {
2205         int change;
2206         u32 h_control = kcontrol->private_value;
2207         u16 source_type, source_index;
2208         u16 e;
2209 
2210         change = 1;
2211 
2212         e = hpi_multiplexer_query_source(h_control,
2213                                     ucontrol->value.enumerated.item[0],
2214                                     &source_type, &source_index);
2215         if (!e)
2216                 hpi_handle_error(
2217                         hpi_multiplexer_set_source(h_control,
2218                                                 source_type, source_index));
2219         return change;
2220 }
2221 
2222 
2223 static int  snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
2224                                struct hpi_control *hpi_ctl)
2225 {
2226         struct snd_card *card = asihpi->card;
2227         struct snd_kcontrol_new snd_control;
2228 
2229         asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2230         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2231         snd_control.info = snd_asihpi_mux_info;
2232         snd_control.get = snd_asihpi_mux_get;
2233         snd_control.put = snd_asihpi_mux_put;
2234 
2235         return ctl_add(card, &snd_control, asihpi);
2236 
2237 }
2238 
2239 /*------------------------------------------------------------
2240    Channel mode controls
2241  ------------------------------------------------------------*/
2242 static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
2243                                  struct snd_ctl_elem_info *uinfo)
2244 {
2245         static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
2246                 "invalid",
2247                 "Normal", "Swap",
2248                 "From Left", "From Right",
2249                 "To Left", "To Right"
2250         };
2251 
2252         u32 h_control = kcontrol->private_value;
2253         u16 mode;
2254         int i;
2255         u16 mode_map[6];
2256         int valid_modes = 0;
2257 
2258         /* HPI channel mode values can be from 1 to 6
2259         Some adapters only support a contiguous subset
2260         */
2261         for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
2262                 if (!hpi_channel_mode_query_mode(
2263                         h_control, i, &mode)) {
2264                         mode_map[valid_modes] = mode;
2265                         valid_modes++;
2266                         }
2267 
2268         if (!valid_modes)
2269                 return -EINVAL;
2270 
2271         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2272         uinfo->count = 1;
2273         uinfo->value.enumerated.items = valid_modes;
2274 
2275         if (uinfo->value.enumerated.item >= valid_modes)
2276                 uinfo->value.enumerated.item = valid_modes - 1;
2277 
2278         strcpy(uinfo->value.enumerated.name,
2279                mode_names[mode_map[uinfo->value.enumerated.item]]);
2280 
2281         return 0;
2282 }
2283 
2284 static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
2285                                 struct snd_ctl_elem_value *ucontrol)
2286 {
2287         u32 h_control = kcontrol->private_value;
2288         u16 mode;
2289 
2290         if (hpi_channel_mode_get(h_control, &mode))
2291                 mode = 1;
2292 
2293         ucontrol->value.enumerated.item[0] = mode - 1;
2294 
2295         return 0;
2296 }
2297 
2298 static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
2299                                 struct snd_ctl_elem_value *ucontrol)
2300 {
2301         int change;
2302         u32 h_control = kcontrol->private_value;
2303 
2304         change = 1;
2305 
2306         hpi_handle_error(hpi_channel_mode_set(h_control,
2307                            ucontrol->value.enumerated.item[0] + 1));
2308         return change;
2309 }
2310 
2311 
2312 static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
2313                                 struct hpi_control *hpi_ctl)
2314 {
2315         struct snd_card *card = asihpi->card;
2316         struct snd_kcontrol_new snd_control;
2317 
2318         asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2319         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2320         snd_control.info = snd_asihpi_cmode_info;
2321         snd_control.get = snd_asihpi_cmode_get;
2322         snd_control.put = snd_asihpi_cmode_put;
2323 
2324         return ctl_add(card, &snd_control, asihpi);
2325 }
2326 
2327 /*------------------------------------------------------------
2328    Sampleclock source  controls
2329  ------------------------------------------------------------*/
2330 static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
2331         "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
2332         "SMPTE", "Digital1", "Auto", "Network", "Invalid",
2333         "Prev Module",
2334         "Digital2", "Digital3", "Digital4", "Digital5",
2335         "Digital6", "Digital7", "Digital8"};
2336 
2337 static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
2338                                   struct snd_ctl_elem_info *uinfo)
2339 {
2340         struct snd_card_asihpi *asihpi =
2341                         (struct snd_card_asihpi *)(kcontrol->private_data);
2342         struct clk_cache *clkcache = &asihpi->cc;
2343         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2344         uinfo->count = 1;
2345         uinfo->value.enumerated.items = clkcache->count;
2346 
2347         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2348                 uinfo->value.enumerated.item =
2349                                 uinfo->value.enumerated.items - 1;
2350 
2351         strcpy(uinfo->value.enumerated.name,
2352                clkcache->s[uinfo->value.enumerated.item].name);
2353         return 0;
2354 }
2355 
2356 static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
2357                                  struct snd_ctl_elem_value *ucontrol)
2358 {
2359         struct snd_card_asihpi *asihpi =
2360                         (struct snd_card_asihpi *)(kcontrol->private_data);
2361         struct clk_cache *clkcache = &asihpi->cc;
2362         u32 h_control = kcontrol->private_value;
2363         u16 source, srcindex = 0;
2364         int i;
2365 
2366         ucontrol->value.enumerated.item[0] = 0;
2367         if (hpi_sample_clock_get_source(h_control, &source))
2368                 source = 0;
2369 
2370         if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2371                 if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2372                         srcindex = 0;
2373 
2374         for (i = 0; i < clkcache->count; i++)
2375                 if ((clkcache->s[i].source == source) &&
2376                         (clkcache->s[i].index == srcindex))
2377                         break;
2378 
2379         ucontrol->value.enumerated.item[0] = i;
2380 
2381         return 0;
2382 }
2383 
2384 static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
2385                                  struct snd_ctl_elem_value *ucontrol)
2386 {
2387         struct snd_card_asihpi *asihpi =
2388                         (struct snd_card_asihpi *)(kcontrol->private_data);
2389         struct clk_cache *clkcache = &asihpi->cc;
2390         unsigned int item;
2391         int change;
2392         u32 h_control = kcontrol->private_value;
2393 
2394         change = 1;
2395         item = ucontrol->value.enumerated.item[0];
2396         if (item >= clkcache->count)
2397                 item = clkcache->count-1;
2398 
2399         hpi_handle_error(hpi_sample_clock_set_source(
2400                                 h_control, clkcache->s[item].source));
2401 
2402         if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2403                 hpi_handle_error(hpi_sample_clock_set_source_index(
2404                                 h_control, clkcache->s[item].index));
2405         return change;
2406 }
2407 
2408 /*------------------------------------------------------------
2409    Clkrate controls
2410  ------------------------------------------------------------*/
2411 /* Need to change this to enumerated control with list of rates */
2412 static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
2413                                    struct snd_ctl_elem_info *uinfo)
2414 {
2415         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2416         uinfo->count = 1;
2417         uinfo->value.integer.min = 8000;
2418         uinfo->value.integer.max = 192000;
2419         uinfo->value.integer.step = 100;
2420 
2421         return 0;
2422 }
2423 
2424 static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
2425                                   struct snd_ctl_elem_value *ucontrol)
2426 {
2427         u32 h_control = kcontrol->private_value;
2428         u32 rate;
2429         u16 e;
2430 
2431         e = hpi_sample_clock_get_local_rate(h_control, &rate);
2432         if (!e)
2433                 ucontrol->value.integer.value[0] = rate;
2434         else
2435                 ucontrol->value.integer.value[0] = 0;
2436         return 0;
2437 }
2438 
2439 static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
2440                                   struct snd_ctl_elem_value *ucontrol)
2441 {
2442         int change;
2443         u32 h_control = kcontrol->private_value;
2444 
2445         /*  change = asihpi->mixer_clkrate[addr][0] != left ||
2446            asihpi->mixer_clkrate[addr][1] != right;
2447          */
2448         change = 1;
2449         hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2450                                       ucontrol->value.integer.value[0]));
2451         return change;
2452 }
2453 
2454 static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
2455                                    struct snd_ctl_elem_info *uinfo)
2456 {
2457         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2458         uinfo->count = 1;
2459         uinfo->value.integer.min = 8000;
2460         uinfo->value.integer.max = 192000;
2461         uinfo->value.integer.step = 100;
2462 
2463         return 0;
2464 }
2465 
2466 static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
2467                                   struct snd_ctl_elem_value *ucontrol)
2468 {
2469         u32 h_control = kcontrol->private_value;
2470         u32 rate;
2471         u16 e;
2472 
2473         e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2474         if (!e)
2475                 ucontrol->value.integer.value[0] = rate;
2476         else
2477                 ucontrol->value.integer.value[0] = 0;
2478         return 0;
2479 }
2480 
2481 static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
2482                                       struct hpi_control *hpi_ctl)
2483 {
2484         struct snd_card *card = asihpi->card;
2485         struct snd_kcontrol_new snd_control;
2486 
2487         struct clk_cache *clkcache = &asihpi->cc;
2488         u32 hSC =  hpi_ctl->h_control;
2489         int has_aes_in = 0;
2490         int i, j;
2491         u16 source;
2492 
2493         snd_control.private_value = hpi_ctl->h_control;
2494 
2495         clkcache->has_local = 0;
2496 
2497         for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2498                 if  (hpi_sample_clock_query_source(hSC,
2499                                 i, &source))
2500                         break;
2501                 clkcache->s[i].source = source;
2502                 clkcache->s[i].index = 0;
2503                 clkcache->s[i].name = sampleclock_sources[source];
2504                 if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2505                         has_aes_in = 1;
2506                 if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
2507                         clkcache->has_local = 1;
2508         }
2509         if (has_aes_in)
2510                 /* already will have picked up index 0 above */
2511                 for (j = 1; j < 8; j++) {
2512                         if (hpi_sample_clock_query_source_index(hSC,
2513                                 j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
2514                                 &source))
2515                                 break;
2516                         clkcache->s[i].source =
2517                                 HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
2518                         clkcache->s[i].index = j;
2519                         clkcache->s[i].name = sampleclock_sources[
2520                                         j+HPI_SAMPLECLOCK_SOURCE_LAST];
2521                         i++;
2522                 }
2523         clkcache->count = i;
2524 
2525         asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2526         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2527         snd_control.info = snd_asihpi_clksrc_info;
2528         snd_control.get = snd_asihpi_clksrc_get;
2529         snd_control.put = snd_asihpi_clksrc_put;
2530         if (ctl_add(card, &snd_control, asihpi) < 0)
2531                 return -EINVAL;
2532 
2533 
2534         if (clkcache->has_local) {
2535                 asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2536                 snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2537                 snd_control.info = snd_asihpi_clklocal_info;
2538                 snd_control.get = snd_asihpi_clklocal_get;
2539                 snd_control.put = snd_asihpi_clklocal_put;
2540 
2541 
2542                 if (ctl_add(card, &snd_control, asihpi) < 0)
2543                         return -EINVAL;
2544         }
2545 
2546         asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2547         snd_control.access =
2548             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2549         snd_control.info = snd_asihpi_clkrate_info;
2550         snd_control.get = snd_asihpi_clkrate_get;
2551 
2552         return ctl_add(card, &snd_control, asihpi);
2553 }
2554 /*------------------------------------------------------------
2555    Mixer
2556  ------------------------------------------------------------*/
2557 
2558 static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
2559 {
2560         struct snd_card *card;
2561         unsigned int idx = 0;
2562         unsigned int subindex = 0;
2563         int err;
2564         struct hpi_control hpi_ctl, prev_ctl;
2565 
2566         if (snd_BUG_ON(!asihpi))
2567                 return -EINVAL;
2568         card = asihpi->card;
2569         strcpy(card->mixername, "Asihpi Mixer");
2570 
2571         err =
2572             hpi_mixer_open(asihpi->hpi->adapter->index,
2573                           &asihpi->h_mixer);
2574         hpi_handle_error(err);
2575         if (err)
2576                 return -err;
2577 
2578         memset(&prev_ctl, 0, sizeof(prev_ctl));
2579         prev_ctl.control_type = -1;
2580 
2581         for (idx = 0; idx < 2000; idx++) {
2582                 err = hpi_mixer_get_control_by_index(
2583                                 asihpi->h_mixer,
2584                                 idx,
2585                                 &hpi_ctl.src_node_type,
2586                                 &hpi_ctl.src_node_index,
2587                                 &hpi_ctl.dst_node_type,
2588                                 &hpi_ctl.dst_node_index,
2589                                 &hpi_ctl.control_type,
2590                                 &hpi_ctl.h_control);
2591                 if (err) {
2592                         if (err == HPI_ERROR_CONTROL_DISABLED) {
2593                                 if (mixer_dump)
2594                                         snd_printk(KERN_INFO
2595                                                    "Disabled HPI Control(%d)\n",
2596                                                    idx);
2597                                 continue;
2598                         } else
2599                                 break;
2600 
2601                 }
2602 
2603                 hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
2604                 hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2605 
2606                 /* ASI50xx in SSX mode has multiple meters on the same node.
2607                    Use subindex to create distinct ALSA controls
2608                    for any duplicated controls.
2609                 */
2610                 if ((hpi_ctl.control_type == prev_ctl.control_type) &&
2611                     (hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
2612                     (hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
2613                     (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
2614                     (hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
2615                         subindex++;
2616                 else
2617                         subindex = 0;
2618 
2619                 prev_ctl = hpi_ctl;
2620 
2621                 switch (hpi_ctl.control_type) {
2622                 case HPI_CONTROL_VOLUME:
2623                         err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
2624                         break;
2625                 case HPI_CONTROL_LEVEL:
2626                         err = snd_asihpi_level_add(asihpi, &hpi_ctl);
2627                         break;
2628                 case HPI_CONTROL_MULTIPLEXER:
2629                         err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
2630                         break;
2631                 case HPI_CONTROL_CHANNEL_MODE:
2632                         err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
2633                         break;
2634                 case HPI_CONTROL_METER:
2635                         err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
2636                         break;
2637                 case HPI_CONTROL_SAMPLECLOCK:
2638                         err = snd_asihpi_sampleclock_add(
2639                                                 asihpi, &hpi_ctl);
2640                         break;
2641                 case HPI_CONTROL_CONNECTION:    /* ignore these */
2642                         continue;
2643                 case HPI_CONTROL_TUNER:
2644                         err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
2645                         break;
2646                 case HPI_CONTROL_AESEBU_TRANSMITTER:
2647                         err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
2648                         break;
2649                 case HPI_CONTROL_AESEBU_RECEIVER:
2650                         err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
2651                         break;
2652                 case HPI_CONTROL_VOX:
2653                 case HPI_CONTROL_BITSTREAM:
2654                 case HPI_CONTROL_MICROPHONE:
2655                 case HPI_CONTROL_PARAMETRIC_EQ:
2656                 case HPI_CONTROL_COMPANDER:
2657                 default:
2658                         if (mixer_dump)
2659                                 snd_printk(KERN_INFO
2660                                         "Untranslated HPI Control"
2661                                         "(%d) %d %d %d %d %d\n",
2662                                         idx,
2663                                         hpi_ctl.control_type,
2664                                         hpi_ctl.src_node_type,
2665                                         hpi_ctl.src_node_index,
2666                                         hpi_ctl.dst_node_type,
2667                                         hpi_ctl.dst_node_index);
2668                         continue;
2669                 }
2670                 if (err < 0)
2671                         return err;
2672         }
2673         if (HPI_ERROR_INVALID_OBJ_INDEX != err)
2674                 hpi_handle_error(err);
2675 
2676         snd_printk(KERN_INFO "%d mixer controls found\n", idx);
2677 
2678         return 0;
2679 }
2680 
2681 /*------------------------------------------------------------
2682    /proc interface
2683  ------------------------------------------------------------*/
2684 
2685 static void
2686 snd_asihpi_proc_read(struct snd_info_entry *entry,
2687                         struct snd_info_buffer *buffer)
2688 {
2689         struct snd_card_asihpi *asihpi = entry->private_data;
2690         u32 h_control;
2691         u32 rate = 0;
2692         u16 source = 0;
2693 
2694         u16 num_outstreams;
2695         u16 num_instreams;
2696         u16 version;
2697         u32 serial_number;
2698         u16 type;
2699 
2700         int err;
2701 
2702         snd_iprintf(buffer, "ASIHPI driver proc file\n");
2703 
2704         hpi_handle_error(hpi_adapter_get_info(asihpi->hpi->adapter->index,
2705                         &num_outstreams, &num_instreams,
2706                         &version, &serial_number, &type));
2707 
2708         snd_iprintf(buffer,
2709                         "Adapter type ASI%4X\nHardware Index %d\n"
2710                         "%d outstreams\n%d instreams\n",
2711                         type, asihpi->hpi->adapter->index,
2712                         num_outstreams, num_instreams);
2713 
2714         snd_iprintf(buffer,
2715                 "Serial#%d\nHardware version %c%d\nDSP code version %03d\n",
2716                 serial_number, ((version >> 3) & 0xf) + 'A', version & 0x7,
2717                 ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2718 
2719         err = hpi_mixer_get_control(asihpi->h_mixer,
2720                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2721                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2722 
2723         if (!err) {
2724                 err = hpi_sample_clock_get_sample_rate(h_control, &rate);
2725                 err += hpi_sample_clock_get_source(h_control, &source);
2726 
2727                 if (!err)
2728                         snd_iprintf(buffer, "Sample Clock %dHz, source %s\n",
2729                         rate, sampleclock_sources[source]);
2730         }
2731 }
2732 
2733 static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
2734 {
2735         struct snd_info_entry *entry;
2736 
2737         if (!snd_card_proc_new(asihpi->card, "info", &entry))
2738                 snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
2739 }
2740 
2741 /*------------------------------------------------------------
2742    HWDEP
2743  ------------------------------------------------------------*/
2744 
2745 static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
2746 {
2747         if (enable_hpi_hwdep)
2748                 return 0;
2749         else
2750                 return -ENODEV;
2751 
2752 }
2753 
2754 static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
2755 {
2756         if (enable_hpi_hwdep)
2757                 return asihpi_hpi_release(file);
2758         else
2759                 return -ENODEV;
2760 }
2761 
2762 static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
2763                                 unsigned int cmd, unsigned long arg)
2764 {
2765         if (enable_hpi_hwdep)
2766                 return asihpi_hpi_ioctl(file, cmd, arg);
2767         else
2768                 return -ENODEV;
2769 }
2770 
2771 
2772 /* results in /dev/snd/hwC#D0 file for each card with index #
2773    also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
2774 */
2775 static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
2776                               int device, struct snd_hwdep **rhwdep)
2777 {
2778         struct snd_hwdep *hw;
2779         int err;
2780 
2781         if (rhwdep)
2782                 *rhwdep = NULL;
2783         err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
2784         if (err < 0)
2785                 return err;
2786         strcpy(hw->name, "asihpi (HPI)");
2787         hw->iface = SNDRV_HWDEP_IFACE_LAST;
2788         hw->ops.open = snd_asihpi_hpi_open;
2789         hw->ops.ioctl = snd_asihpi_hpi_ioctl;
2790         hw->ops.release = snd_asihpi_hpi_release;
2791         hw->private_data = asihpi;
2792         if (rhwdep)
2793                 *rhwdep = hw;
2794         return 0;
2795 }
2796 
2797 /*------------------------------------------------------------
2798    CARD
2799  ------------------------------------------------------------*/
2800 static int snd_asihpi_probe(struct pci_dev *pci_dev,
2801                             const struct pci_device_id *pci_id)
2802 {
2803         int err;
2804         struct hpi_adapter *hpi;
2805         struct snd_card *card;
2806         struct snd_card_asihpi *asihpi;
2807 
2808         u32 h_control;
2809         u32 h_stream;
2810         u32 adapter_index;
2811 
2812         static int dev;
2813         if (dev >= SNDRV_CARDS)
2814                 return -ENODEV;
2815 
2816         /* Should this be enable[hpi->index] ? */
2817         if (!enable[dev]) {
2818                 dev++;
2819                 return -ENOENT;
2820         }
2821 
2822         /* Initialise low-level HPI driver */
2823         err = asihpi_adapter_probe(pci_dev, pci_id);
2824         if (err < 0)
2825                 return err;
2826 
2827         hpi = pci_get_drvdata(pci_dev);
2828         adapter_index = hpi->adapter->index;
2829         /* first try to give the card the same index as its hardware index */
2830         err = snd_card_create(adapter_index,
2831                               id[adapter_index], THIS_MODULE,
2832                               sizeof(struct snd_card_asihpi),
2833                               &card);
2834         if (err < 0) {
2835                 /* if that fails, try the default index==next available */
2836                 err =
2837                     snd_card_create(index[dev], id[dev],
2838                                     THIS_MODULE,
2839                                     sizeof(struct snd_card_asihpi),
2840                                     &card);
2841                 if (err < 0)
2842                         return err;
2843                 snd_printk(KERN_WARNING
2844                         "**** WARNING **** Adapter index %d->ALSA index %d\n",
2845                         adapter_index, card->number);
2846         }
2847 
2848         snd_card_set_dev(card, &pci_dev->dev);
2849 
2850         asihpi = card->private_data;
2851         asihpi->card = card;
2852         asihpi->pci = pci_dev;
2853         asihpi->hpi = hpi;
2854 
2855         snd_printk(KERN_INFO "adapter ID=%4X index=%d\n",
2856                         asihpi->hpi->adapter->type, adapter_index);
2857 
2858         err = hpi_adapter_get_property(adapter_index,
2859                 HPI_ADAPTER_PROPERTY_CAPS1,
2860                 NULL, &asihpi->support_grouping);
2861         if (err)
2862                 asihpi->support_grouping = 0;
2863 
2864         err = hpi_adapter_get_property(adapter_index,
2865                 HPI_ADAPTER_PROPERTY_CAPS2,
2866                 &asihpi->support_mrx, NULL);
2867         if (err)
2868                 asihpi->support_mrx = 0;
2869 
2870         err = hpi_adapter_get_property(adapter_index,
2871                 HPI_ADAPTER_PROPERTY_INTERVAL,
2872                 NULL, &asihpi->update_interval_frames);
2873         if (err)
2874                 asihpi->update_interval_frames = 512;
2875 
2876         if (!asihpi->can_dma)
2877                 asihpi->update_interval_frames *= 2;
2878 
2879         hpi_handle_error(hpi_instream_open(adapter_index,
2880                              0, &h_stream));
2881 
2882         err = hpi_instream_host_buffer_free(h_stream);
2883         asihpi->can_dma = (!err);
2884 
2885         hpi_handle_error(hpi_instream_close(h_stream));
2886 
2887         err = hpi_adapter_get_property(adapter_index,
2888                 HPI_ADAPTER_PROPERTY_CURCHANNELS,
2889                 &asihpi->in_max_chans, &asihpi->out_max_chans);
2890         if (err) {
2891                 asihpi->in_max_chans = 2;
2892                 asihpi->out_max_chans = 2;
2893         }
2894 
2895         if (asihpi->out_max_chans > 2) { /* assume LL mode */
2896                 asihpi->out_min_chans = asihpi->out_max_chans;
2897                 asihpi->in_min_chans = asihpi->in_max_chans;
2898                 asihpi->support_grouping = 0;
2899         } else {
2900                 asihpi->out_min_chans = 1;
2901                 asihpi->in_min_chans = 1;
2902         }
2903 
2904         snd_printk(KERN_INFO "Has dma:%d, grouping:%d, mrx:%d\n",
2905                         asihpi->can_dma,
2906                         asihpi->support_grouping,
2907                         asihpi->support_mrx
2908               );
2909 
2910         err = snd_card_asihpi_pcm_new(asihpi, 0);
2911         if (err < 0) {
2912                 snd_printk(KERN_ERR "pcm_new failed\n");
2913                 goto __nodev;
2914         }
2915         err = snd_card_asihpi_mixer_new(asihpi);
2916         if (err < 0) {
2917                 snd_printk(KERN_ERR "mixer_new failed\n");
2918                 goto __nodev;
2919         }
2920 
2921         err = hpi_mixer_get_control(asihpi->h_mixer,
2922                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2923                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2924 
2925         if (!err)
2926                 err = hpi_sample_clock_set_local_rate(
2927                         h_control, adapter_fs);
2928 
2929         snd_asihpi_proc_init(asihpi);
2930 
2931         /* always create, can be enabled or disabled dynamically
2932             by enable_hwdep  module param*/
2933         snd_asihpi_hpi_new(asihpi, 0, NULL);
2934 
2935         strcpy(card->driver, "ASIHPI");
2936 
2937         sprintf(card->shortname, "AudioScience ASI%4X",
2938                         asihpi->hpi->adapter->type);
2939         sprintf(card->longname, "%s %i",
2940                         card->shortname, adapter_index);
2941         err = snd_card_register(card);
2942 
2943         if (!err) {
2944                 hpi->snd_card = card;
2945                 dev++;
2946                 return 0;
2947         }
2948 __nodev:
2949         snd_card_free(card);
2950         snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
2951         return err;
2952 
2953 }
2954 
2955 static void snd_asihpi_remove(struct pci_dev *pci_dev)
2956 {
2957         struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
2958         snd_card_free(hpi->snd_card);
2959         hpi->snd_card = NULL;
2960         asihpi_adapter_remove(pci_dev);
2961 }
2962 
2963 static DEFINE_PCI_DEVICE_TABLE(asihpi_pci_tbl) = {
2964         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
2965                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2966                 (kernel_ulong_t)HPI_6205},
2967         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
2968                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2969                 (kernel_ulong_t)HPI_6000},
2970         {0,}
2971 };
2972 MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
2973 
2974 static struct pci_driver driver = {
2975         .name = KBUILD_MODNAME,
2976         .id_table = asihpi_pci_tbl,
2977         .probe = snd_asihpi_probe,
2978         .remove = snd_asihpi_remove,
2979 #ifdef CONFIG_PM_SLEEP
2980 /*      .suspend = snd_asihpi_suspend,
2981         .resume = snd_asihpi_resume, */
2982 #endif
2983 };
2984 
2985 static int __init snd_asihpi_init(void)
2986 {
2987         asihpi_init();
2988         return pci_register_driver(&driver);
2989 }
2990 
2991 static void __exit snd_asihpi_exit(void)
2992 {
2993 
2994         pci_unregister_driver(&driver);
2995         asihpi_exit();
2996 }
2997 
2998 module_init(snd_asihpi_init)
2999 module_exit(snd_asihpi_exit)
3000 
3001 

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