4 * Copyright 2002 Eric Pouech
5 * Copyright 2007 Maarten Lankhorst
7 * This file has a few shared generic subroutines shared among the alsa
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
43 #include "wine/library.h"
44 #include "wine/unicode.h"
45 #include "wine/debug.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(alsa);
48 /* unless someone makes a wineserver kernel module, Unix pipes are faster than win32 events */
52 #define INIT_OMR(omr) do { if (pipe(omr->msg_pipe) < 0) { omr->msg_pipe[0] = omr->msg_pipe[1] = -1; } } while (0)
53 #define CLOSE_OMR(Omr) do { close(omr->msg_pipe[0]); close(omr->msg_pipe[1]); } while (0)
54 #define SIGNAL_OMR(omr) do { int x = 0; write((omr)->msg_pipe[1], &x, sizeof(x)); } while (0)
55 #define CLEAR_OMR(omr) do { int x = 0; read((omr)->msg_pipe[0], &x, sizeof(x)); } while (0)
56 #define RESET_OMR(omr) do { } while (0)
57 #define WAIT_OMR(omr, sleep) \
58 do { struct pollfd pfd; pfd.fd = (omr)->msg_pipe[0]; \
59 pfd.events = POLLIN; poll(&pfd, 1, sleep); } while (0)
61 #define INIT_OMR(omr) do { omr->msg_event = CreateEventW(NULL, FALSE, FALSE, NULL); } while (0)
62 #define CLOSE_OMR(omr) do { CloseHandle(omr->msg_event); } while (0)
63 #define SIGNAL_OMR(omr) do { SetEvent((omr)->msg_event); } while (0)
64 #define CLEAR_OMR(omr) do { } while (0)
65 #define RESET_OMR(omr) do { ResetEvent((omr)->msg_event); } while (0)
66 #define WAIT_OMR(omr, sleep) \
67 do { WaitForSingleObject((omr)->msg_event, sleep); } while (0)
70 #define ALSA_RING_BUFFER_INCREMENT 64
72 /******************************************************************
73 * ALSA_InitRingMessage
75 * Initialize the ring of messages for passing between driver's caller and playback/record
78 int ALSA_InitRingMessage(ALSA_MSG_RING* omr)
83 omr->ring_buffer_size = ALSA_RING_BUFFER_INCREMENT;
84 omr->messages = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,omr->ring_buffer_size * sizeof(ALSA_MSG));
86 InitializeCriticalSection(&omr->msg_crst);
87 omr->msg_crst.DebugInfo->Spare[0] = (DWORD_PTR)"WINEALSA_msg_crst";
91 /******************************************************************
92 * ALSA_DestroyRingMessage
95 int ALSA_DestroyRingMessage(ALSA_MSG_RING* omr)
98 HeapFree(GetProcessHeap(),0,omr->messages);
99 omr->ring_buffer_size = 0;
100 omr->msg_crst.DebugInfo->Spare[0] = 0;
101 DeleteCriticalSection(&omr->msg_crst);
104 /******************************************************************
105 * ALSA_ResetRingMessage
108 void ALSA_ResetRingMessage(ALSA_MSG_RING* omr)
113 /******************************************************************
114 * ALSA_WaitRingMessage
117 void ALSA_WaitRingMessage(ALSA_MSG_RING* omr, DWORD sleep)
119 WAIT_OMR(omr, sleep);
123 /******************************************************************
124 * ALSA_AddRingMessage
126 * Inserts a new message into the ring (should be called from DriverProc derivated routines)
128 int ALSA_AddRingMessage(ALSA_MSG_RING* omr, enum win_wm_message msg, DWORD param, BOOL wait)
130 HANDLE hEvent = INVALID_HANDLE_VALUE;
132 EnterCriticalSection(&omr->msg_crst);
133 if ((omr->msg_toget == ((omr->msg_tosave + 1) % omr->ring_buffer_size)))
135 int old_ring_buffer_size = omr->ring_buffer_size;
136 omr->ring_buffer_size += ALSA_RING_BUFFER_INCREMENT;
137 omr->messages = HeapReAlloc(GetProcessHeap(),0,omr->messages, omr->ring_buffer_size * sizeof(ALSA_MSG));
138 /* Now we need to rearrange the ring buffer so that the new
139 buffers just allocated are in between omr->msg_tosave and
142 if (omr->msg_tosave < omr->msg_toget)
144 memmove(&(omr->messages[omr->msg_toget + ALSA_RING_BUFFER_INCREMENT]),
145 &(omr->messages[omr->msg_toget]),
146 sizeof(ALSA_MSG)*(old_ring_buffer_size - omr->msg_toget)
148 omr->msg_toget += ALSA_RING_BUFFER_INCREMENT;
153 hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
154 if (hEvent == INVALID_HANDLE_VALUE)
156 ERR("can't create event !?\n");
157 LeaveCriticalSection(&omr->msg_crst);
160 if (omr->msg_toget != omr->msg_tosave && omr->messages[omr->msg_toget].msg != WINE_WM_HEADER)
161 FIXME("two fast messages in the queue!!!! toget = %d(%s), tosave=%d(%s)\n",
162 omr->msg_toget,ALSA_getCmdString(omr->messages[omr->msg_toget].msg),
163 omr->msg_tosave,ALSA_getCmdString(omr->messages[omr->msg_tosave].msg));
165 /* fast messages have to be added at the start of the queue */
166 omr->msg_toget = (omr->msg_toget + omr->ring_buffer_size - 1) % omr->ring_buffer_size;
168 omr->messages[omr->msg_toget].msg = msg;
169 omr->messages[omr->msg_toget].param = param;
170 omr->messages[omr->msg_toget].hEvent = hEvent;
174 omr->messages[omr->msg_tosave].msg = msg;
175 omr->messages[omr->msg_tosave].param = param;
176 omr->messages[omr->msg_tosave].hEvent = INVALID_HANDLE_VALUE;
177 omr->msg_tosave = (omr->msg_tosave + 1) % omr->ring_buffer_size;
179 LeaveCriticalSection(&omr->msg_crst);
180 /* signal a new message */
184 /* wait for playback/record thread to have processed the message */
185 WaitForSingleObject(hEvent, INFINITE);
191 /******************************************************************
192 * ALSA_RetrieveRingMessage
194 * Get a message from the ring. Should be called by the playback/record thread.
196 int ALSA_RetrieveRingMessage(ALSA_MSG_RING* omr,
197 enum win_wm_message *msg, DWORD *param, HANDLE *hEvent)
199 EnterCriticalSection(&omr->msg_crst);
201 if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
203 LeaveCriticalSection(&omr->msg_crst);
207 *msg = omr->messages[omr->msg_toget].msg;
208 omr->messages[omr->msg_toget].msg = 0;
209 *param = omr->messages[omr->msg_toget].param;
210 *hEvent = omr->messages[omr->msg_toget].hEvent;
211 omr->msg_toget = (omr->msg_toget + 1) % omr->ring_buffer_size;
213 LeaveCriticalSection(&omr->msg_crst);
217 /******************************************************************
218 * ALSA_PeekRingMessage
220 * Peek at a message from the ring but do not remove it.
221 * Should be called by the playback/record thread.
223 int ALSA_PeekRingMessage(ALSA_MSG_RING* omr,
224 enum win_wm_message *msg,
225 DWORD *param, HANDLE *hEvent)
227 EnterCriticalSection(&omr->msg_crst);
229 if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
231 LeaveCriticalSection(&omr->msg_crst);
235 *msg = omr->messages[omr->msg_toget].msg;
236 *param = omr->messages[omr->msg_toget].param;
237 *hEvent = omr->messages[omr->msg_toget].hEvent;
238 LeaveCriticalSection(&omr->msg_crst);
242 /*======================================================================*
243 * Utility functions *
244 *======================================================================*/
246 /* These strings used only for tracing */
247 const char * ALSA_getCmdString(enum win_wm_message msg)
249 static char unknown[32];
250 #define MSG_TO_STR(x) case x: return #x
252 MSG_TO_STR(WINE_WM_PAUSING);
253 MSG_TO_STR(WINE_WM_RESTARTING);
254 MSG_TO_STR(WINE_WM_RESETTING);
255 MSG_TO_STR(WINE_WM_HEADER);
256 MSG_TO_STR(WINE_WM_UPDATE);
257 MSG_TO_STR(WINE_WM_BREAKLOOP);
258 MSG_TO_STR(WINE_WM_CLOSING);
259 MSG_TO_STR(WINE_WM_STARTING);
260 MSG_TO_STR(WINE_WM_STOPPING);
263 sprintf(unknown, "UNKNOWN(0x%08x)", msg);
267 const char * ALSA_getMessage(UINT msg)
269 static char unknown[32];
270 #define MSG_TO_STR(x) case x: return #x
272 MSG_TO_STR(DRVM_INIT);
273 MSG_TO_STR(DRVM_EXIT);
274 MSG_TO_STR(DRVM_ENABLE);
275 MSG_TO_STR(DRVM_DISABLE);
276 MSG_TO_STR(WIDM_OPEN);
277 MSG_TO_STR(WIDM_CLOSE);
278 MSG_TO_STR(WIDM_ADDBUFFER);
279 MSG_TO_STR(WIDM_PREPARE);
280 MSG_TO_STR(WIDM_UNPREPARE);
281 MSG_TO_STR(WIDM_GETDEVCAPS);
282 MSG_TO_STR(WIDM_GETNUMDEVS);
283 MSG_TO_STR(WIDM_GETPOS);
284 MSG_TO_STR(WIDM_RESET);
285 MSG_TO_STR(WIDM_START);
286 MSG_TO_STR(WIDM_STOP);
287 MSG_TO_STR(WODM_OPEN);
288 MSG_TO_STR(WODM_CLOSE);
289 MSG_TO_STR(WODM_WRITE);
290 MSG_TO_STR(WODM_PAUSE);
291 MSG_TO_STR(WODM_GETPOS);
292 MSG_TO_STR(WODM_BREAKLOOP);
293 MSG_TO_STR(WODM_PREPARE);
294 MSG_TO_STR(WODM_UNPREPARE);
295 MSG_TO_STR(WODM_GETDEVCAPS);
296 MSG_TO_STR(WODM_GETNUMDEVS);
297 MSG_TO_STR(WODM_GETPITCH);
298 MSG_TO_STR(WODM_SETPITCH);
299 MSG_TO_STR(WODM_GETPLAYBACKRATE);
300 MSG_TO_STR(WODM_SETPLAYBACKRATE);
301 MSG_TO_STR(WODM_GETVOLUME);
302 MSG_TO_STR(WODM_SETVOLUME);
303 MSG_TO_STR(WODM_RESTART);
304 MSG_TO_STR(WODM_RESET);
305 MSG_TO_STR(DRV_QUERYDEVICEINTERFACESIZE);
306 MSG_TO_STR(DRV_QUERYDEVICEINTERFACE);
307 MSG_TO_STR(DRV_QUERYDSOUNDIFACE);
308 MSG_TO_STR(DRV_QUERYDSOUNDDESC);
311 sprintf(unknown, "UNKNOWN(0x%04x)", msg);
315 const char * ALSA_getFormat(WORD wFormatTag)
317 static char unknown[32];
318 #define FMT_TO_STR(x) case x: return #x
320 FMT_TO_STR(WAVE_FORMAT_PCM);
321 FMT_TO_STR(WAVE_FORMAT_EXTENSIBLE);
322 FMT_TO_STR(WAVE_FORMAT_MULAW);
323 FMT_TO_STR(WAVE_FORMAT_ALAW);
324 FMT_TO_STR(WAVE_FORMAT_ADPCM);
327 sprintf(unknown, "UNKNOWN(0x%04x)", wFormatTag);
331 /* Allow 1% deviation for sample rates (some ES137x cards) */
332 BOOL ALSA_NearMatch(int rate1, int rate2)
334 return (((100 * (rate1 - rate2)) / rate1) == 0);
337 DWORD ALSA_bytes_to_mmtime(LPMMTIME lpTime, DWORD position, WAVEFORMATPCMEX* format)
339 TRACE("wType=%04X wBitsPerSample=%u nSamplesPerSec=%u nChannels=%u nAvgBytesPerSec=%u\n",
340 lpTime->wType, format->Format.wBitsPerSample, format->Format.nSamplesPerSec,
341 format->Format.nChannels, format->Format.nAvgBytesPerSec);
342 TRACE("Position in bytes=%u\n", position);
344 switch (lpTime->wType) {
346 lpTime->u.sample = position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels);
347 TRACE("TIME_SAMPLES=%u\n", lpTime->u.sample);
350 lpTime->u.ms = 1000.0 * position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels * format->Format.nSamplesPerSec);
351 TRACE("TIME_MS=%u\n", lpTime->u.ms);
354 lpTime->u.smpte.fps = 30;
355 position = position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels);
356 position += (format->Format.nSamplesPerSec / lpTime->u.smpte.fps) - 1; /* round up */
357 lpTime->u.smpte.sec = position / format->Format.nSamplesPerSec;
358 position -= lpTime->u.smpte.sec * format->Format.nSamplesPerSec;
359 lpTime->u.smpte.min = lpTime->u.smpte.sec / 60;
360 lpTime->u.smpte.sec -= 60 * lpTime->u.smpte.min;
361 lpTime->u.smpte.hour = lpTime->u.smpte.min / 60;
362 lpTime->u.smpte.min -= 60 * lpTime->u.smpte.hour;
363 lpTime->u.smpte.fps = 30;
364 lpTime->u.smpte.frame = position * lpTime->u.smpte.fps / format->Format.nSamplesPerSec;
365 TRACE("TIME_SMPTE=%02u:%02u:%02u:%02u\n",
366 lpTime->u.smpte.hour, lpTime->u.smpte.min,
367 lpTime->u.smpte.sec, lpTime->u.smpte.frame);
370 WARN("Format %d not supported, using TIME_BYTES !\n", lpTime->wType);
371 lpTime->wType = TIME_BYTES;
374 lpTime->u.cb = position;
375 TRACE("TIME_BYTES=%u\n", lpTime->u.cb);
378 return MMSYSERR_NOERROR;
381 void ALSA_copyFormat(LPWAVEFORMATEX wf1, LPWAVEFORMATPCMEX wf2)
383 unsigned int iLength;
385 ZeroMemory(wf2, sizeof(wf2));
386 if (wf1->wFormatTag == WAVE_FORMAT_PCM)
387 iLength = sizeof(PCMWAVEFORMAT);
388 else if (wf1->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
389 iLength = sizeof(WAVEFORMATPCMEX);
391 iLength = sizeof(WAVEFORMATEX) + wf1->cbSize;
392 if (iLength > sizeof(WAVEFORMATPCMEX)) {
393 ERR("calculated %u bytes, capping to %u bytes\n", iLength, sizeof(WAVEFORMATPCMEX));
394 iLength = sizeof(WAVEFORMATPCMEX);
396 memcpy(wf2, wf1, iLength);
399 BOOL ALSA_supportedFormat(LPWAVEFORMATEX wf)
403 if (wf->nSamplesPerSec<DSBFREQUENCY_MIN||wf->nSamplesPerSec>DSBFREQUENCY_MAX)
406 if (wf->wFormatTag == WAVE_FORMAT_PCM) {
407 if (wf->nChannels==1||wf->nChannels==2) {
408 if (wf->wBitsPerSample==8||wf->wBitsPerSample==16)
411 } else if (wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE) {
412 WAVEFORMATEXTENSIBLE * wfex = (WAVEFORMATEXTENSIBLE *)wf;
414 if (wf->cbSize == 22 &&
415 (IsEqualGUID(&wfex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM) ||
416 IsEqualGUID(&wfex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))) {
417 if (wf->nChannels>=1 && wf->nChannels<=6) {
418 if (wf->wBitsPerSample==wfex->Samples.wValidBitsPerSample) {
419 if (wf->wBitsPerSample==8||wf->wBitsPerSample==16||
420 wf->wBitsPerSample==24||wf->wBitsPerSample==32) {
424 WARN("wBitsPerSample != wValidBitsPerSample not supported yet\n");
427 WARN("only KSDATAFORMAT_SUBTYPE_PCM and KSDATAFORMAT_SUBTYPE_IEEE_FLOAT "
429 } else if (wf->wFormatTag == WAVE_FORMAT_MULAW || wf->wFormatTag == WAVE_FORMAT_ALAW) {
430 if (wf->wBitsPerSample==8)
433 ERR("WAVE_FORMAT_MULAW and WAVE_FORMAT_ALAW wBitsPerSample must = 8\n");
435 } else if (wf->wFormatTag == WAVE_FORMAT_ADPCM) {
436 if (wf->wBitsPerSample==4)
439 ERR("WAVE_FORMAT_ADPCM wBitsPerSample must = 4\n");
441 WARN("only WAVE_FORMAT_PCM and WAVE_FORMAT_EXTENSIBLE supported\n");
446 /*======================================================================*
447 * Low level WAVE implementation *
448 *======================================================================*/
450 /**************************************************************************
451 * ALSA_CheckSetVolume [internal]
453 * Helper function for Alsa volume queries. This tries to simplify
454 * the process of managing the volume. All parameters are optional
455 * (pass NULL to ignore or not use).
456 * Return values are MMSYSERR_NOERROR on success, or !0 on failure;
457 * error codes are normalized into the possible documented return
458 * values from waveOutGetVolume.
460 int ALSA_CheckSetVolume(snd_hctl_t *hctl, int *out_left, int *out_right,
461 int *out_min, int *out_max, int *out_step,
462 int *new_left, int *new_right)
464 int rc = MMSYSERR_NOERROR;
466 snd_hctl_elem_t * elem = NULL;
467 snd_ctl_elem_info_t * eleminfop = NULL;
468 snd_ctl_elem_value_t * elemvaluep = NULL;
469 snd_ctl_elem_id_t * elemidp = NULL;
472 #define EXIT_ON_ERROR(f,txt,exitcode) do \
475 if ( (err = (f) ) < 0) \
477 ERR(txt " failed: %s\n", snd_strerror(err)); \
484 return MMSYSERR_NOTSUPPORTED;
486 /* Allocate areas to return information about the volume */
487 EXIT_ON_ERROR(snd_ctl_elem_id_malloc(&elemidp), "snd_ctl_elem_id_malloc", MMSYSERR_NOMEM);
488 EXIT_ON_ERROR(snd_ctl_elem_value_malloc (&elemvaluep), "snd_ctl_elem_value_malloc", MMSYSERR_NOMEM);
489 EXIT_ON_ERROR(snd_ctl_elem_info_malloc (&eleminfop), "snd_ctl_elem_info_malloc", MMSYSERR_NOMEM);
490 snd_ctl_elem_id_clear(elemidp);
491 snd_ctl_elem_value_clear(elemvaluep);
492 snd_ctl_elem_info_clear(eleminfop);
494 /* Setup and find an element id that exactly matches the characteristic we want
495 ** FIXME: It is probably short sighted to hard code and fixate on PCM Playback Volume */
496 snd_ctl_elem_id_set_name(elemidp, "PCM Playback Volume");
497 snd_ctl_elem_id_set_interface(elemidp, SND_CTL_ELEM_IFACE_MIXER);
498 elem = snd_hctl_find_elem(hctl, elemidp);
501 /* Read and return volume information */
502 EXIT_ON_ERROR(snd_hctl_elem_info(elem, eleminfop), "snd_hctl_elem_info", MMSYSERR_NOTSUPPORTED);
503 value_count = snd_ctl_elem_info_get_count(eleminfop);
504 if (out_min || out_max || out_step)
506 if (!snd_ctl_elem_info_is_readable(eleminfop))
508 ERR("snd_ctl_elem_info_is_readable returned false; cannot return info\n");
509 rc = MMSYSERR_NOTSUPPORTED;
514 *out_min = snd_ctl_elem_info_get_min(eleminfop);
517 *out_max = snd_ctl_elem_info_get_max(eleminfop);
520 *out_step = snd_ctl_elem_info_get_step(eleminfop);
523 if (out_left || out_right)
525 EXIT_ON_ERROR(snd_hctl_elem_read(elem, elemvaluep), "snd_hctl_elem_read", MMSYSERR_NOTSUPPORTED);
528 *out_left = snd_ctl_elem_value_get_integer(elemvaluep, 0);
532 if (value_count == 1)
533 *out_right = snd_ctl_elem_value_get_integer(elemvaluep, 0);
534 else if (value_count == 2)
535 *out_right = snd_ctl_elem_value_get_integer(elemvaluep, 1);
538 ERR("Unexpected value count %d from snd_ctl_elem_info_get_count while getting volume info\n", value_count);
546 if (new_left || new_right)
548 EXIT_ON_ERROR(snd_hctl_elem_read(elem, elemvaluep), "snd_hctl_elem_read", MMSYSERR_NOTSUPPORTED);
550 snd_ctl_elem_value_set_integer(elemvaluep, 0, *new_left);
553 if (value_count == 1)
554 snd_ctl_elem_value_set_integer(elemvaluep, 0, *new_right);
555 else if (value_count == 2)
556 snd_ctl_elem_value_set_integer(elemvaluep, 1, *new_right);
559 ERR("Unexpected value count %d from snd_ctl_elem_info_get_count while setting volume info\n", value_count);
565 EXIT_ON_ERROR(snd_hctl_elem_write(elem, elemvaluep), "snd_hctl_elem_write", MMSYSERR_NOTSUPPORTED);
570 ERR("Could not find 'PCM Playback Volume' element\n");
571 rc = MMSYSERR_NOTSUPPORTED;
580 snd_ctl_elem_value_free(elemvaluep);
582 snd_ctl_elem_info_free(eleminfop);
584 snd_ctl_elem_id_free(elemidp);
590 /**************************************************************************
591 * ALSA_XRUNRecovery [internal]
593 * used to recovery from XRUN errors (buffer underflow/overflow)
595 int ALSA_XRUNRecovery(WINE_WAVEDEV * wwo, int err)
597 if (err == -EPIPE) { /* under-run */
598 err = snd_pcm_prepare(wwo->pcm);
600 ERR( "underrun recovery failed. prepare failed: %s\n", snd_strerror(err));
602 } else if (err == -ESTRPIPE) {
603 while ((err = snd_pcm_resume(wwo->pcm)) == -EAGAIN)
604 sleep(1); /* wait until the suspend flag is released */
606 err = snd_pcm_prepare(wwo->pcm);
608 ERR("recovery from suspend failed, prepare failed: %s\n", snd_strerror(err));
615 /**************************************************************************
616 * ALSA_TraceParameters [internal]
618 * used to trace format changes, hw and sw parameters
620 void ALSA_TraceParameters(snd_pcm_hw_params_t * hw_params, snd_pcm_sw_params_t * sw, int full)
623 snd_pcm_format_t format;
624 snd_pcm_access_t access;
625 err = snd_pcm_hw_params_get_access(hw_params, &access);
626 err = snd_pcm_hw_params_get_format(hw_params, &format);
628 #define X(x) ((x)? "true" : "false")
630 TRACE("FLAGS: sampleres=%s overrng=%s pause=%s resume=%s syncstart=%s batch=%s block=%s double=%s "
631 "halfd=%s joint=%s\n",
632 X(snd_pcm_hw_params_can_mmap_sample_resolution(hw_params)),
633 X(snd_pcm_hw_params_can_overrange(hw_params)),
634 X(snd_pcm_hw_params_can_pause(hw_params)),
635 X(snd_pcm_hw_params_can_resume(hw_params)),
636 X(snd_pcm_hw_params_can_sync_start(hw_params)),
637 X(snd_pcm_hw_params_is_batch(hw_params)),
638 X(snd_pcm_hw_params_is_block_transfer(hw_params)),
639 X(snd_pcm_hw_params_is_double(hw_params)),
640 X(snd_pcm_hw_params_is_half_duplex(hw_params)),
641 X(snd_pcm_hw_params_is_joint_duplex(hw_params)));
645 TRACE("access=%s\n", snd_pcm_access_name(access));
648 snd_pcm_access_mask_t * acmask;
649 snd_pcm_access_mask_alloca(&acmask);
650 snd_pcm_hw_params_get_access_mask(hw_params, acmask);
651 for ( access = SND_PCM_ACCESS_MMAP_INTERLEAVED; access <= SND_PCM_ACCESS_LAST; access++)
652 if (snd_pcm_access_mask_test(acmask, access))
653 TRACE("access=%s\n", snd_pcm_access_name(access));
658 TRACE("format=%s\n", snd_pcm_format_name(format));
663 snd_pcm_format_mask_t * fmask;
665 snd_pcm_format_mask_alloca(&fmask);
666 snd_pcm_hw_params_get_format_mask(hw_params, fmask);
667 for ( format = SND_PCM_FORMAT_S8; format <= SND_PCM_FORMAT_LAST ; format++)
668 if ( snd_pcm_format_mask_test(fmask, format) )
669 TRACE("format=%s\n", snd_pcm_format_name(format));
675 err = snd_pcm_hw_params_get_channels(hw_params, &val);
677 unsigned int min = 0;
678 unsigned int max = 0;
679 err = snd_pcm_hw_params_get_channels_min(hw_params, &min),
680 err = snd_pcm_hw_params_get_channels_max(hw_params, &max);
681 TRACE("channels_min=%u, channels_min_max=%u\n", min, max);
683 TRACE("channels=%d\n", val);
688 snd_pcm_uframes_t val=0;
689 err = snd_pcm_hw_params_get_buffer_size(hw_params, &val);
691 snd_pcm_uframes_t min = 0;
692 snd_pcm_uframes_t max = 0;
693 err = snd_pcm_hw_params_get_buffer_size_min(hw_params, &min),
694 err = snd_pcm_hw_params_get_buffer_size_max(hw_params, &max);
695 TRACE("buffer_size_min=%lu, buffer_size_min_max=%lu\n", min, max);
697 TRACE("buffer_size=%lu\n", val);
704 unsigned int val=0; \
705 err = snd_pcm_hw_params_get_##x(hw_params,&val, &dir); \
707 unsigned int min = 0; \
708 unsigned int max = 0; \
709 err = snd_pcm_hw_params_get_##x##_min(hw_params, &min, &dir); \
710 err = snd_pcm_hw_params_get_##x##_max(hw_params, &max, &dir); \
711 TRACE(#x "_min=%u " #x "_max=%u\n", min, max); \
713 TRACE(#x "=%d\n", val); \
722 snd_pcm_uframes_t val=0;
723 err = snd_pcm_hw_params_get_period_size(hw_params, &val, &dir);
725 snd_pcm_uframes_t min = 0;
726 snd_pcm_uframes_t max = 0;
727 err = snd_pcm_hw_params_get_period_size_min(hw_params, &min, &dir),
728 err = snd_pcm_hw_params_get_period_size_max(hw_params, &max, &dir);
729 TRACE("period_size_min=%lu, period_size_min_max=%lu\n", min, max);
731 TRACE("period_size=%lu\n", val);
745 /**************************************************************************
746 * DriverProc (WINEALSA.@)
748 LRESULT CALLBACK ALSA_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
749 LPARAM dwParam1, LPARAM dwParam2)
751 /* EPP TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n", */
752 /* EPP dwDevID, hDriv, wMsg, dwParam1, dwParam2); */
756 case DRV_LOAD: ALSA_WaveInit();
759 case DRV_FREE: return 1;
760 case DRV_OPEN: return 1;
761 case DRV_CLOSE: return 1;
762 case DRV_ENABLE: return 1;
763 case DRV_DISABLE: return 1;
764 case DRV_QUERYCONFIGURE: return 1;
765 case DRV_CONFIGURE: MessageBoxA(0, "ALSA MultiMedia Driver !", "ALSA Driver", MB_OK); return 1;
766 case DRV_INSTALL: return DRVCNF_RESTART;
767 case DRV_REMOVE: return DRVCNF_RESTART;
770 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);