2  * QEMU OSS audio driver
35 #define AUDIO_CAP "oss"
122     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_poll_out()  local
124     qemu_set_fd_handler(oss->fd, NULL, oss_helper_poll_out, hw->s);  in oss_poll_out()
129     OSSVoiceIn *oss = (OSSVoiceIn *) hw;  in oss_poll_in()  local
131     qemu_set_fd_handler(oss->fd, oss_helper_poll_in, NULL, hw->s);  in oss_poll_in()
239         oss_logerr2 (errno, typ, "Failed to get OSS version\n");  in oss_get_version()
249     AudiodevOssOptions *oopts = &dev->u.oss;  in oss_open()
369 static size_t oss_get_available_bytes(OSSVoiceOut *oss)  in oss_get_available_bytes()  argument
373     assert(oss->mmapped);  in oss_get_available_bytes()
375     err = ioctl(oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo);  in oss_get_available_bytes()
381     return audio_ring_dist(cntinfo.ptr, oss->hw.pos_emul, oss->hw.size_emul);  in oss_get_available_bytes()
386     OSSVoiceOut *oss = (OSSVoiceOut *)hw;  in oss_run_buffer_out()  local
388     if (!oss->mmapped) {  in oss_run_buffer_out()
395     OSSVoiceOut *oss = (OSSVoiceOut *)hw;  in oss_buffer_get_free()  local
397     if (oss->mmapped) {  in oss_buffer_get_free()
398         return oss_get_available_bytes(oss);  in oss_buffer_get_free()
406     OSSVoiceOut *oss = (OSSVoiceOut *)hw;  in oss_get_buffer_out()  local
408     if (oss->mmapped) {  in oss_get_buffer_out()
418     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_put_buffer_out()  local
419     if (oss->mmapped) {  in oss_put_buffer_out()
431     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_write()  local
434     if (oss->mmapped) {  in oss_write()
436         len = MIN(len, oss_get_available_bytes(oss));  in oss_write()
455         bytes_written = write(oss->fd, pcm, len);  in oss_write()
476     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_fini_out()  local
479     oss_anal_close (&oss->fd);  in oss_fini_out()
481     if (oss->mmapped && hw->buf_emul) {  in oss_fini_out()
494     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_init_out()  local
502     AudiodevOssOptions *oopts = &dev->u.oss;  in oss_init_out()
504     oss->fd = -1;  in oss_init_out()
526     oss->nfrags = obt.nfrags;  in oss_init_out()
527     oss->fragsize = obt.fragsize;  in oss_init_out()
536     oss->mmapped = 0;  in oss_init_out()
563                     oss->mmapped = 1;  in oss_init_out()
567             if (!oss->mmapped) {  in oss_init_out()
578     oss->fd = fd;  in oss_init_out()
579     oss->dev = dev;  in oss_init_out()
586     OSSVoiceOut *oss = (OSSVoiceOut *) hw;  in oss_enable_out()  local
587     AudiodevOssPerDirectionOptions *opdo = oss->dev->u.oss.out;  in oss_enable_out()
597         if (!oss->mmapped) {  in oss_enable_out()
603         if (ioctl(oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {  in oss_enable_out()
610             qemu_set_fd_handler (oss->fd, NULL, NULL, NULL);  in oss_enable_out()
614         if (!oss->mmapped) {  in oss_enable_out()
620         if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {  in oss_enable_out()
629     OSSVoiceIn *oss = (OSSVoiceIn *) hw;  in oss_init_in()  local
638     oss->fd = -1;  in oss_init_in()
659     oss->nfrags = obt.nfrags;  in oss_init_in()
660     oss->fragsize = obt.fragsize;  in oss_init_in()
669     oss->fd = fd;  in oss_init_in()
670     oss->dev = dev;  in oss_init_in()
676     OSSVoiceIn *oss = (OSSVoiceIn *) hw;  in oss_fini_in()  local
678     oss_anal_close (&oss->fd);  in oss_fini_in()
683     OSSVoiceIn *oss = (OSSVoiceIn *) hw;  in oss_read()  local
690         nread = read(oss->fd, dst, len);  in oss_read()
714     OSSVoiceIn *oss = (OSSVoiceIn *) hw;  in oss_enable_in()  local
715     AudiodevOssPerDirectionOptions *opdo = oss->dev->u.oss.out;  in oss_enable_in()
725             qemu_set_fd_handler (oss->fd, NULL, NULL, NULL);  in oss_enable_in()
744     oopts = &dev->u.oss;  in oss_audio_init()
781     .name           = "oss",
782     .descr          = "OSS http://www.opensound.com",