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sadly, that just does not work

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Bill Currie 2001-05-21 06:01:03 +00:00
parent a90f8132a7
commit eb974c6dcb
1 changed files with 3 additions and 9 deletions
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12
source/snd_oss.c
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@ -80,23 +80,17 @@ SNDDMA_Init (void)
struct audio_buf_info info; struct audio_buf_info info;
int caps; int caps;
int retries = 3; int retries = 3;
int omode = O_WRONLY;
int mmmode = PROT_WRITE;
snd_inited = 0; snd_inited = 0;
// open /dev/dsp, confirm capability to mmap, and get size of dma buffer // open /dev/dsp, confirm capability to mmap, and get size of dma buffer
if (COM_CheckParm ("-sndrw")) { audio_fd = open ("/dev/dsp", O_RDWR);
omode = O_RDWR;
mmmode |= PROT_READ;
}
audio_fd = open ("/dev/dsp", omode);
if (audio_fd < 0) { // Failed open, retry up to 3 times if (audio_fd < 0) { // Failed open, retry up to 3 times
// if it's busy // if it's busy
while ((audio_fd < 0) && retries-- && while ((audio_fd < 0) && retries-- &&
((errno == EAGAIN) || (errno == EBUSY))) { ((errno == EAGAIN) || (errno == EBUSY))) {
sleep (1); sleep (1);
audio_fd = open ("/dev/dsp", omode); audio_fd = open ("/dev/dsp", O_RDWR);
} }
if (audio_fd < 0) { if (audio_fd < 0) {
perror ("/dev/dsp"); perror ("/dev/dsp");
@ -183,7 +177,7 @@ SNDDMA_Init (void)
// memory map the dma buffer // memory map the dma buffer
shm->buffer = (unsigned char *) mmap (NULL, info.fragstotal shm->buffer = (unsigned char *) mmap (NULL, info.fragstotal
* info.fragsize, * info.fragsize,
mmmode, PROT_READ | PROT_WRITE,
MAP_FILE | MAP_SHARED, audio_fd, 0); MAP_FILE | MAP_SHARED, audio_fd, 0);
if (shm->buffer == MAP_FAILED) { if (shm->buffer == MAP_FAILED) {