diff options
| -rw-r--r-- | Android.mk | 9 | ||||
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | tinypcminfo.c | 97 |
3 files changed, 110 insertions, 1 deletions
@@ -36,3 +36,12 @@ LOCAL_SHARED_LIBRARIES:= libcutils libutils libtinyalsa LOCAL_MODULE_TAGS := optional include $(BUILD_EXECUTABLE) + +include $(CLEAR_VARS) +LOCAL_C_INCLUDES:= external/tinyalsa/include +LOCAL_SRC_FILES:= tinypcminfo.c +LOCAL_MODULE := tinypcminfo +LOCAL_SHARED_LIBRARIES:= libcutils libutils libtinyalsa +LOCAL_MODULE_TAGS := optional + +include $(BUILD_EXECUTABLE) @@ -4,7 +4,7 @@ OBJECTS = mixer.o pcm.o LIB = libtinyalsa.so CROSS_COMPILE = -all: $(LIB) tinyplay tinycap tinymix +all: $(LIB) tinyplay tinycap tinymix tinypcminfo tinyplay: $(LIB) tinyplay.o $(CROSS_COMPILE)gcc tinyplay.o -L. -ltinyalsa -o tinyplay @@ -15,6 +15,9 @@ tinycap: $(LIB) tinycap.o tinymix: $(LIB) tinymix.o $(CROSS_COMPILE)gcc tinymix.o -L. -ltinyalsa -o tinymix +tinypcminfo: $(LIB) tinypcminfo.o + $(CROSS_COMPILE)gcc tinypcminfo.o -L. -ltinyalsa -o tinypcminfo + $(LIB): $(OBJECTS) $(CROSS_COMPILE)gcc -shared $(OBJECTS) -o $(LIB) diff --git a/tinypcminfo.c b/tinypcminfo.c new file mode 100644 index 0000000..3282186 --- /dev/null +++ b/tinypcminfo.c @@ -0,0 +1,97 @@ +/* tinypcminfo.c +** +** Copyright 2012, The Android Open Source Project +** +** Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in the +** documentation and/or other materials provided with the distribution. +** * Neither the name of The Android Open Source Project nor the names of +** its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND +** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE +** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH +** DAMAGE. +*/ + +#include <tinyalsa/asoundlib.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +int main(int argc, char **argv) +{ + unsigned int device = 0; + unsigned int card = 0; + int i; + + if (argc < 3) { + fprintf(stderr, "Usage: %s -D card -d device\n", argv[0]); + return 1; + } + + /* parse command line arguments */ + argv += 1; + while (*argv) { + if (strcmp(*argv, "-D") == 0) { + argv++; + if (*argv) + card = atoi(*argv); + } + if (strcmp(*argv, "-d") == 0) { + argv++; + if (*argv) + device = atoi(*argv); + } + if (*argv) + argv++; + } + + printf("Info for card %d, device %d:\n", card, device); + + for (i = 0; i < 2; i++) { + struct pcm_params *params; + unsigned int min; + unsigned int max; + + printf("\nPCM %s:\n", i == 0 ? "out" : "in"); + + params = pcm_params_get(card, device, i == 0 ? PCM_OUT : PCM_IN); + if (params == NULL) { + printf("Device does not exist.\n"); + continue; + } + + min = pcm_params_get_min(params, PCM_PARAM_RATE); + max = pcm_params_get_max(params, PCM_PARAM_RATE); + printf(" Rate:\tmin=%uHz\tmax=%uHz\n", min, max); + min = pcm_params_get_min(params, PCM_PARAM_CHANNELS); + max = pcm_params_get_max(params, PCM_PARAM_CHANNELS); + printf(" Channels:\tmin=%u\t\tmax=%u\n", min, max); + min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS); + max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS); + printf(" Sample bits:\tmin=%u\t\tmax=%u\n", min, max); + min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE); + max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE); + printf(" Period size:\tmin=%u\t\tmax=%u\n", min, max); + min = pcm_params_get_min(params, PCM_PARAM_PERIODS); + max = pcm_params_get_max(params, PCM_PARAM_PERIODS); + printf("Period count:\tmin=%u\t\tmax=%u\n", min, max); + + pcm_params_free(params); + } + + return 0; +} |