diff options
Diffstat (limited to 'apps/systemcmds')
-rw-r--r-- | apps/systemcmds/mixer/Makefile | 2 | ||||
-rw-r--r-- | apps/systemcmds/mixer/mixer.c | 156 |
2 files changed, 71 insertions, 87 deletions
diff --git a/apps/systemcmds/mixer/Makefile b/apps/systemcmds/mixer/Makefile index a83085bfc..b016ddc57 100644 --- a/apps/systemcmds/mixer/Makefile +++ b/apps/systemcmds/mixer/Makefile @@ -37,6 +37,6 @@ APPNAME = mixer PRIORITY = SCHED_PRIORITY_DEFAULT -STACKSIZE = 2048 +STACKSIZE = 4096 include $(APPDIR)/mk/app.mk diff --git a/apps/systemcmds/mixer/mixer.c b/apps/systemcmds/mixer/mixer.c index c5adf8dbf..bbbe67ff7 100644 --- a/apps/systemcmds/mixer/mixer.c +++ b/apps/systemcmds/mixer/mixer.c @@ -38,9 +38,9 @@ #include <string.h> #include <stdlib.h> #include <stdio.h> -#include <getopt.h> #include <unistd.h> #include <fcntl.h> +#include <errno.h> #include <systemlib/mixer.h> #include <drivers/drv_mixer.h> @@ -48,80 +48,43 @@ __EXPORT int mixer_main(int argc, char *argv[]); -static void usage(void); +static void usage(const char *reason); static void load(const char *devname, const char *fname); static void save(const char *devname, const char *fname); static void show(const char *devname); -enum Operation { - LOAD, - SAVE, - SHOW, - NONE -}; - int mixer_main(int argc, char *argv[]) { - const char *devname = NULL; - const char *fname = NULL; - int ch; - enum Operation todo = NONE; - if (argc < 2) - usage(); + usage("missing command"); if (!strcmp(argv[1], "load")) { - todo = LOAD; + if (argc < 4) + usage("missing device or filename"); + load(argv[2], argv[3]); } else if (!strcmp(argv[1], "save")) { - todo = SAVE; + if (argc < 4) + usage("missing device or filename"); + save(argv[2], argv[3]); } else if (!strcmp(argv[1], "show")) { - todo = SHOW; - } else { - usage(); - } - - while ((ch = getopt(argc, argv, "d:f:")) != EOF) { - switch (ch) { - case 'd': - devname = optarg; - break; - case 'f': - fname = optarg; - break; - default: - usage(); - } - } + if (argc < 3) + usage("missing device name"); + show(argv[2]); - switch (todo) { - case LOAD: - if ((devname == NULL) || (fname == NULL)) - usage(); - load(devname, fname); - break; - - case SAVE: - if ((devname == NULL) || (fname == NULL)) - usage(); - save(devname, fname); - break; - - case SHOW: - if (devname == NULL) - usage(); - show(devname); - break; - default: - exit(1); + } else { + usage("unrecognised command"); } return 0; } static void -usage(void) +usage(const char *reason) { + if (reason) + fprintf(stderr, "%s\n", reason); fprintf(stderr, "usage:\n"); - fprintf(stderr, " mixer {load|save|show} -d <device> [-f <filename>]\n"); + fprintf(stderr, " mixer show <device>\n"); + fprintf(stderr, " mixer {load|save} <device> [<filename>]\n"); exit(1); } @@ -132,7 +95,7 @@ load(const char *devname, const char *fname) int dev = -1; unsigned num_mixers = 0; int ret, result = 1; - struct MixMixer *mixer; + struct MixMixer *mixer = NULL; /* open the device */ if ((dev = open(devname, 0)) < 0) { @@ -156,29 +119,42 @@ load(const char *devname, const char *fname) /* send mixers to the device */ for (unsigned i = 0; i < num_mixers; i++) { ret = mixer_load(defs, &mixer); - if (ret < 0) + if (ret < 0) { + fprintf(stderr, "read for mixer %d failed\n", i); goto out; + } /* end of file? */ if (ret == 0) break; - /* sanity check the mixer */ - if (mixer_check(mixer, NUM_ACTUATOR_CONTROLS)) { - fprintf(stderr, "mixer %u fails sanity check\n", i); - goto out; + if (mixer != NULL) { + /* sanity check the mixer */ + ret = mixer_check(mixer, NUM_ACTUATOR_CONTROLS); + if (ret != 0) { + fprintf(stderr, "mixer %u fails sanity check %d\n", i, ret); + goto out; + } + + /* send the mixer to the device */ + ret = ioctl(dev, MIXERIOCSETMIXER(i), (unsigned long)mixer); + if (ret < 0) { + fprintf(stderr, "mixer %d set failed\n", i); + goto out; + } + + free(mixer); + mixer = NULL; + } else { + /* delete the mixer */ + ret = ioctl(dev, MIXERIOCSETMIXER(i), 0); + if (ret < 0) { + fprintf(stderr, "mixer %d clear failed\n", i); + goto out; + } } - - /* send the mixer to the device */ - ret = ioctl(dev, MIXERIOCSETMIXER(i), (unsigned long)mixer); - if (ret < 0) - goto out; - - free(mixer); - mixer = NULL; } - printf("mixer: loaded %d mixers to %s\n", num_mixers, devname); result = 0; out: @@ -201,18 +177,16 @@ getmixer(int dev, unsigned mixer_number, struct MixInfo **mip) /* first-round initialisation */ if (mi == NULL) { + mi = (struct MixInfo *)malloc(MIXINFO_SIZE(0)); mi->num_controls = 0; - mi = (struct MixInfo *)malloc(MIXINFO_SIZE(mi->num_controls)); } /* loop trying to get the next mixer until the buffer is big enough */ do { /* try to get the mixer into the buffer as it stands */ ret = ioctl(dev, MIXERIOCGETMIXER(mixer_number), (unsigned long)mi); - if (ret < 0) { - fprintf(stderr, "MIXERIOCGETMIXER error\n"); + if (ret < 0) return -1; - } /* did the mixer fit? */ if (mi->mixer.control_count <= mi->num_controls) @@ -262,12 +236,16 @@ save(const char *devname, const char *fname) /* get mixers from the device and save them */ for (unsigned i = 0; i < num_mixers; i++) { + struct MixMixer *mm; ret = getmixer(dev, i, &mi); - if (ret < 0) - goto out; - - ret = mixer_save(defs, &mi->mixer); + mm = &mi->mixer; + if (ret < 0) { + if (errno != ENOENT) + goto out; + mm = NULL; + } + ret = mixer_save(defs, mm); if (ret < 0) goto out; } @@ -289,7 +267,7 @@ out: static void show(const char *devname) { - struct MixInfo *mi; + struct MixInfo *mi = NULL; int dev = -1; unsigned num_mixers = 0; int ret; @@ -311,19 +289,23 @@ show(const char *devname) for (unsigned i = 0; i < num_mixers; i++) { ret = getmixer(dev, i, &mi); - if (ret < 0) - goto out; + if (ret < 0) { + if (errno != ENOENT) + goto out; + continue; + } - printf("mixer %d : %d controls\n", i, mi->mixer.control_count); - printf(" -ve scale +ve scale offset low limit high limit"); - printf("output %f %f %f %f %f\n", + printf("mixer %d:\n", i); + printf(" -ve scale +ve scale offset low limit high limit\n"); + printf("output %8.4f %8.4f %8.4f %8.4f %8.4f\n", mi->mixer.output_scaler.negative_scale, mi->mixer.output_scaler.positive_scale, mi->mixer.output_scaler.offset, mi->mixer.output_scaler.lower_limit, mi->mixer.output_scaler.upper_limit); for (unsigned j = 0; j < mi->mixer.control_count; j++) { - printf("%d: %f %f %f %f %f\n", + printf("%d: %8.4f %8.4f %8.4f %8.4f %8.4f\n", + j, mi->mixer.control_scaler[j].negative_scale, mi->mixer.control_scaler[j].positive_scale, mi->mixer.control_scaler[j].offset, @@ -333,6 +315,8 @@ show(const char *devname) } out: + printf("done\n"); + usleep(100000); /* free the mixinfo */ if (mi != NULL) free(mi); |