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Index: auddev_newpcm.c
===================================================================
RCS file: /cs/research/mice/starship/src/local/CVS_repository/rat/auddev_newpcm.c,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -r1.17 -r1.18
--- rat/auddev_newpcm.c 2001/02/28 20:15:02 1.17
+++ rat/auddev_newpcm.c 2002/02/24 21:13:47 1.18
@@ -9,7 +9,7 @@
#ifndef HIDE_SOURCE_STRINGS
static const char cvsid[] =
-"$Id: auddev_newpcm.c,v 1.17 2001/02/28 20:15:02 ucacoxh Exp $";
+"$Id: auddev_newpcm.c,v 1.18 2002/02/24 21:13:47 ucacoxh Exp $";
#endif /* HIDE_SOURCE_STRINGS */
#include "config_unix.h"
@@ -26,15 +26,32 @@
#include <dirent.h>
#include <errno.h>
+/* #define DEBUG_JUST_NEWPCM if not using debug-enable and want err msgs */
+#ifdef DEBUG_JUST_NEWPCM
+#undef debug_msg
+#define debug_msg(x...) fprintf(stderr, x)
+#endif /* DEBUG_JUST_NEWPCM */
+
static char *port_names[] = SOUND_DEVICE_LABELS;
static int iport, oport, loop;
static snd_chan_param pa;
static struct snd_size sz;
static int audio_fd = -1;
+static int mixer_fd = -1;
#define RAT_TO_DEVICE(x) ((x) * 100 / MAX_AMP)
#define DEVICE_TO_RAT(x) ((x) * MAX_AMP / 100)
+#define MIXER_CHECK0(fd) if ((fd) < 0) { \
+ debug_msg("Failed mixer checked\n"); \
+ return; \
+ }
+
+#define MIXER_CHECK1(fd, err) if ((fd) < 0) { \
+ debug_msg("Failed mixer checked\n"); \
+ return (err); \
+ }
+
#define NEWPCM_AUDIO_IOCTL(fd, cmd, val) \
newpcm_error = 0; \
if (ioctl((fd), (cmd), (val)) < 0) { \
@@ -53,6 +70,7 @@
static audio_format *input_format, *output_format, *tmp_format;
static snd_capabilities soundcaps[NEWPCM_MAX_AUDIO_DEVICES];
+static int newpcm_mixer_open(const char* audiodev);
static void newpcm_mixer_save(int fd);
static void newpcm_mixer_restore(int fd);
static void newpcm_mixer_init(int fd);
@@ -76,17 +94,15 @@
/* Ignore any earlier errors */
newpcm_error = 0;
- newpcm_mixer_save(audio_fd);
-
NEWPCM_AUDIO_IOCTL(audio_fd, AIOGCAP, &soundcaps[ad]);
- debug_msg("soundcaps[%d].rate_min = %d\n", ad, soundcaps[ad].rate_min);
- debug_msg("soundcaps[%d].rate_max = %d\n", ad, soundcaps[ad].rate_max);
+ debug_msg("soundcaps[%d].rate_min = %ld\n", ad, soundcaps[ad].rate_min);
+ debug_msg("soundcaps[%d].rate_max = %ld\n", ad, soundcaps[ad].rate_max);
debug_msg("soundcaps[%d].formats = 0x%08lx\n", ad, soundcaps[ad].formats);
- debug_msg("soundcaps[%d].bufsize = %d\n", ad, soundcaps[ad].bufsize);
+ debug_msg("soundcaps[%d].bufsize = %ld\n", ad, soundcaps[ad].bufsize);
debug_msg("soundcaps[%d].mixers = 0x%08lx\n", ad, soundcaps[ad].mixers);
debug_msg("soundcaps[%d].inputs = 0x%08lx\n", ad, soundcaps[ad].inputs);
- debug_msg("soundcaps[%d].left = 0x%04lx\n", ad, soundcaps[ad].left);
- debug_msg("soundcaps[%d].right = 0x%04lx\n", ad, soundcaps[ad].right);
+ debug_msg("soundcaps[%d].left = 0x%04x\n", ad, soundcaps[ad].left);
+ debug_msg("soundcaps[%d].right = 0x%04x\n", ad, soundcaps[ad].right);
/* Setup input and output format settings */
assert(ofmt->channels == ifmt->channels);
@@ -125,7 +141,7 @@
(IN_RANGE((uint32_t)ifmt->sample_rate,
soundcaps[ad].rate_min,
soundcaps[ad].rate_max) == 0)) {
- debug_msg("(%d or %d) out of range %d -- %d Hz\n",
+ debug_msg("(%d or %d) out of range %ld -- %ld Hz\n",
ofmt->sample_rate,
ifmt->sample_rate,
soundcaps[ad].rate_min,
@@ -190,7 +206,9 @@
}
output_format = tmp_format;
- newpcm_mixer_init(audio_fd);
+ mixer_fd = newpcm_mixer_open(thedev);
+ newpcm_mixer_save(mixer_fd);
+ newpcm_mixer_init(mixer_fd);
/* Turn off loopback from input to output... not fatal so
* after error check.
*/
@@ -224,10 +242,14 @@
if (output_format != NULL) {
audio_format_free(&output_format);
}
- newpcm_mixer_restore(audio_fd);
+
newpcm_audio_drain(audio_fd);
close(audio_fd);
audio_fd = -1;
+
+ newpcm_mixer_restore(mixer_fd);
+ close(mixer_fd);
+ mixer_fd = -1;
}
/* Flush input buffer */
@@ -380,8 +402,9 @@
{
int volume, lgport, op;
- UNUSED(ad); assert(audio_fd > 0);
-
+ MIXER_CHECK0(mixer_fd);
+
+ UNUSED(ad);
vol = RAT_TO_DEVICE(vol);
volume = vol << 8 | vol;
lgport = -1;
@@ -391,7 +414,7 @@
lgport ++;
}
- NEWPCM_AUDIO_IOCTL(audio_fd, MIXER_WRITE(lgport), &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, MIXER_WRITE(lgport), &volume);
}
int
@@ -399,7 +422,8 @@
{
int volume, lgport, op;
- UNUSED(ad); assert(audio_fd > 0);
+ UNUSED(ad);
+ MIXER_CHECK1(mixer_fd, 0);
lgport = -1;
op = oport;
@@ -408,7 +432,7 @@
lgport ++;
}
- NEWPCM_AUDIO_IOCTL(audio_fd, MIXER_READ(lgport), &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, MIXER_READ(lgport), &volume);
volume = DEVICE_TO_RAT(volume & 0xff);
if (volume > 100 || volume < 0) {
debug_msg("gain out of bounds (%08x %d--%d)" \
@@ -468,17 +492,19 @@
int volume = RAT_TO_DEVICE(gain);
volume |= (volume << 8);
- UNUSED(ad); assert(audio_fd > 0);
+ UNUSED(ad);
+ MIXER_CHECK0(mixer_fd);
+
newpcm_audio_loopback_config(gain);
/* Try AC97 */
- NEWPCM_AUDIO_IOCTL(audio_fd, SOUND_MIXER_WRITE_RECLEV, &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, SOUND_MIXER_WRITE_RECLEV, &volume);
if (newpcm_error != 0 && iport != 0) {
/* Fallback to non-ac97 */
int idx = 1;
while ((1 << idx) != iport)
idx++;
- NEWPCM_AUDIO_IOCTL(audio_fd, MIXER_WRITE(idx), &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, MIXER_WRITE(idx), &volume);
}
}
@@ -487,15 +513,17 @@
{
int volume = 0;
- UNUSED(ad); assert(audio_fd > 0);
+ UNUSED(ad);
+ MIXER_CHECK1(mixer_fd, 0);
+
/* Try AC97 */
- NEWPCM_AUDIO_IOCTL(audio_fd, SOUND_MIXER_READ_RECLEV, &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, SOUND_MIXER_READ_RECLEV, &volume);
if (newpcm_error != 0 && iport != 0) {
/* Fallback to non-ac97 */
int idx = 1;
while ((1 << idx) != iport)
idx++;
- NEWPCM_AUDIO_IOCTL(audio_fd, MIXER_READ(idx), &volume);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, MIXER_READ(idx), &volume);
}
volume = DEVICE_TO_RAT(volume & 0xff);
if (volume > 100 || volume < 0) {
@@ -512,6 +540,8 @@
/* Check port is in record mask */
int gain;
+ MIXER_CHECK0(mixer_fd);
+
debug_msg("port 0x%08x recmask 0x%08x\n", port, recmask);
if ((port & recmask) == 0) {
@@ -520,7 +550,7 @@
return;
}
- if (ioctl(audio_fd, SOUND_MIXER_WRITE_RECSRC, &port) < 0) {
+ if (ioctl(mixer_fd, SOUND_MIXER_WRITE_RECSRC, &port) < 0) {
perror("Unable to write record mask\n");
return;
}
@@ -571,6 +601,8 @@
{
int lgport, vol;
+ MIXER_CHECK0(mixer_fd);
+
/* Find current input port id */
lgport = newpcm_get_nth_port_mask(iport, 0);
@@ -580,7 +612,7 @@
vol = 0;
}
- NEWPCM_AUDIO_IOCTL(audio_fd, MIXER_WRITE(lgport), &vol);
+ NEWPCM_AUDIO_IOCTL(mixer_fd, MIXER_WRITE(lgport), &vol);
}
void
@@ -706,6 +738,48 @@
return dummy;
}
return NULL;
+}
+
+/* Mixer open / close related */
+
+static int
+newpcm_mixer_device(const char* audiodev)
+{
+ const char* p = audiodev;
+ int devno = 0;
+
+ /*
+ * Audio device looks like "/dev/fooN" or "dev/foo/N.n"
+ * and we want "N"
+ */
+ while (p && !isnumber(*p))
+ p++;
+ while (p && isnumber(*p)) {
+ devno = devno * 10 + (*p - '0');
+ p++;
+ }
+ assert(devno < 20);
+ return devno;
+}
+
+static int
+newpcm_mixer_open(const char* audiodev)
+{
+ char mixer_name[32] = "/dev/mixerXXX";
+ int m;
+
+#define END_OF_DEV_MIXER 10
+ sprintf(mixer_name + END_OF_DEV_MIXER,
+ "%d", newpcm_mixer_device(audiodev));
+
+ m = open(mixer_name, O_RDWR);
+ if (m < 0) {
+ fprintf(stderr, "Could not open %s (%s): "
+ "mixer operations will not work.\n",
+ mixer_name, strerror(errno));
+ return 0;
+ }
+ return m;
}
/* Functions to save and restore recording source and mixer levels */
|
