Simon Wilson | 42fc2d3 | 2012-12-03 11:18:57 -0800 | [diff] [blame] | 1 | /* tinypcminfo.c |
| 2 | ** |
| 3 | ** Copyright 2012, The Android Open Source Project |
| 4 | ** |
| 5 | ** Redistribution and use in source and binary forms, with or without |
| 6 | ** modification, are permitted provided that the following conditions are met: |
| 7 | ** * Redistributions of source code must retain the above copyright |
| 8 | ** notice, this list of conditions and the following disclaimer. |
| 9 | ** * Redistributions in binary form must reproduce the above copyright |
| 10 | ** notice, this list of conditions and the following disclaimer in the |
| 11 | ** documentation and/or other materials provided with the distribution. |
| 12 | ** * Neither the name of The Android Open Source Project nor the names of |
| 13 | ** its contributors may be used to endorse or promote products derived |
| 14 | ** from this software without specific prior written permission. |
| 15 | ** |
| 16 | ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND |
| 17 | ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE |
| 20 | ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 22 | ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 23 | ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| 26 | ** DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <tinyalsa/asoundlib.h> |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <string.h> |
| 33 | |
Andy Hung | a5b44d9 | 2014-03-10 18:08:15 -0700 | [diff] [blame] | 34 | #ifndef ARRAY_SIZE |
| 35 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0])) |
| 36 | #endif |
| 37 | |
| 38 | /* The format_lookup is in order of SNDRV_PCM_FORMAT_##index and |
| 39 | * matches the grouping in sound/asound.h. Note this is not |
| 40 | * continuous and has an empty gap from (25 - 30). |
| 41 | */ |
| 42 | static const char *format_lookup[] = { |
| 43 | /*[0] =*/ "S8", |
| 44 | "U8", |
| 45 | "S16_LE", |
| 46 | "S16_BE", |
| 47 | "U16_LE", |
| 48 | "U16_BE", |
| 49 | "S24_LE", |
| 50 | "S24_BE", |
| 51 | "U24_LE", |
| 52 | "U24_BE", |
| 53 | "S32_LE", |
| 54 | "S32_BE", |
| 55 | "U32_LE", |
| 56 | "U32_BE", |
| 57 | "FLOAT_LE", |
| 58 | "FLOAT_BE", |
| 59 | "FLOAT64_LE", |
| 60 | "FLOAT64_BE", |
| 61 | "IEC958_SUBFRAME_LE", |
| 62 | "IEC958_SUBFRAME_BE", |
| 63 | "MU_LAW", |
| 64 | "A_LAW", |
| 65 | "IMA_ADPCM", |
| 66 | "MPEG", |
| 67 | /*[24] =*/ "GSM", |
| 68 | [31] = "SPECIAL", |
| 69 | "S24_3LE", |
| 70 | "S24_3BE", |
| 71 | "U24_3LE", |
| 72 | "U24_3BE", |
| 73 | "S20_3LE", |
| 74 | "S20_3BE", |
| 75 | "U20_3LE", |
| 76 | "U20_3BE", |
| 77 | "S18_3LE", |
| 78 | "S18_3BE", |
| 79 | "U18_3LE", |
| 80 | /*[43] =*/ "U18_3BE", |
| 81 | #if 0 |
| 82 | /* recent additions, may not be present on local asound.h */ |
| 83 | "G723_24", |
| 84 | "G723_24_1B", |
| 85 | "G723_40", |
| 86 | "G723_40_1B", |
| 87 | "DSD_U8", |
| 88 | "DSD_U16_LE", |
| 89 | #endif |
| 90 | }; |
| 91 | |
| 92 | /* Returns a human readable name for the format associated with bit_index, |
| 93 | * NULL if bit_index is not known. |
| 94 | */ |
| 95 | inline const char *pcm_get_format_name(unsigned bit_index) |
| 96 | { |
| 97 | return bit_index < ARRAY_SIZE(format_lookup) ? format_lookup[bit_index] : NULL; |
| 98 | } |
| 99 | |
Simon Wilson | 42fc2d3 | 2012-12-03 11:18:57 -0800 | [diff] [blame] | 100 | int main(int argc, char **argv) |
| 101 | { |
| 102 | unsigned int device = 0; |
| 103 | unsigned int card = 0; |
| 104 | int i; |
| 105 | |
| 106 | if (argc < 3) { |
| 107 | fprintf(stderr, "Usage: %s -D card -d device\n", argv[0]); |
| 108 | return 1; |
| 109 | } |
| 110 | |
| 111 | /* parse command line arguments */ |
| 112 | argv += 1; |
| 113 | while (*argv) { |
| 114 | if (strcmp(*argv, "-D") == 0) { |
| 115 | argv++; |
| 116 | if (*argv) |
| 117 | card = atoi(*argv); |
| 118 | } |
| 119 | if (strcmp(*argv, "-d") == 0) { |
| 120 | argv++; |
| 121 | if (*argv) |
| 122 | device = atoi(*argv); |
| 123 | } |
| 124 | if (*argv) |
| 125 | argv++; |
| 126 | } |
| 127 | |
| 128 | printf("Info for card %d, device %d:\n", card, device); |
| 129 | |
| 130 | for (i = 0; i < 2; i++) { |
| 131 | struct pcm_params *params; |
Andy Hung | a5b44d9 | 2014-03-10 18:08:15 -0700 | [diff] [blame] | 132 | struct pcm_mask *m; |
Simon Wilson | 42fc2d3 | 2012-12-03 11:18:57 -0800 | [diff] [blame] | 133 | unsigned int min; |
| 134 | unsigned int max; |
| 135 | |
| 136 | printf("\nPCM %s:\n", i == 0 ? "out" : "in"); |
| 137 | |
| 138 | params = pcm_params_get(card, device, i == 0 ? PCM_OUT : PCM_IN); |
| 139 | if (params == NULL) { |
| 140 | printf("Device does not exist.\n"); |
| 141 | continue; |
| 142 | } |
| 143 | |
Andy Hung | a5b44d9 | 2014-03-10 18:08:15 -0700 | [diff] [blame] | 144 | m = pcm_params_get_mask(params, PCM_PARAM_ACCESS); |
| 145 | if (m) { /* bitmask, refer to SNDRV_PCM_ACCESS_*, generally interleaved */ |
| 146 | printf(" Access:\t%#08x\n", m->bits[0]); |
| 147 | } |
| 148 | m = pcm_params_get_mask(params, PCM_PARAM_FORMAT); |
| 149 | if (m) { /* bitmask, refer to: SNDRV_PCM_FORMAT_* */ |
| 150 | unsigned j, k, count = 0; |
| 151 | const unsigned bitcount = sizeof(m->bits[0]) * 8; |
| 152 | |
| 153 | /* we only check first two format masks (out of 8) - others are zero. */ |
| 154 | printf(" Format[0]:\t%#08x\n", m->bits[0]); |
| 155 | printf(" Format[1]:\t%#08x\n", m->bits[1]); |
| 156 | |
| 157 | /* print friendly format names, if they exist */ |
| 158 | for (k = 0; k < 2; ++k) { |
| 159 | for (j = 0; j < bitcount; ++j) { |
| 160 | const char *name; |
| 161 | |
| 162 | if (m->bits[k] & (1 << j)) { |
| 163 | name = pcm_get_format_name(j + k*bitcount); |
| 164 | if (name) { |
| 165 | if (count++ == 0) { |
| 166 | printf(" Format Name:\t"); |
| 167 | } else { |
| 168 | printf (", "); |
| 169 | } |
| 170 | printf("%s", name); |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | if (count) { |
| 176 | printf("\n"); |
| 177 | } |
| 178 | } |
| 179 | m = pcm_params_get_mask(params, PCM_PARAM_SUBFORMAT); |
| 180 | if (m) { /* bitmask, should be 1: SNDRV_PCM_SUBFORMAT_STD */ |
| 181 | printf(" Subformat:\t%#08x\n", m->bits[0]); |
| 182 | } |
Simon Wilson | 42fc2d3 | 2012-12-03 11:18:57 -0800 | [diff] [blame] | 183 | min = pcm_params_get_min(params, PCM_PARAM_RATE); |
| 184 | max = pcm_params_get_max(params, PCM_PARAM_RATE); |
| 185 | printf(" Rate:\tmin=%uHz\tmax=%uHz\n", min, max); |
| 186 | min = pcm_params_get_min(params, PCM_PARAM_CHANNELS); |
| 187 | max = pcm_params_get_max(params, PCM_PARAM_CHANNELS); |
| 188 | printf(" Channels:\tmin=%u\t\tmax=%u\n", min, max); |
| 189 | min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS); |
| 190 | max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS); |
| 191 | printf(" Sample bits:\tmin=%u\t\tmax=%u\n", min, max); |
| 192 | min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE); |
| 193 | max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE); |
| 194 | printf(" Period size:\tmin=%u\t\tmax=%u\n", min, max); |
| 195 | min = pcm_params_get_min(params, PCM_PARAM_PERIODS); |
| 196 | max = pcm_params_get_max(params, PCM_PARAM_PERIODS); |
| 197 | printf("Period count:\tmin=%u\t\tmax=%u\n", min, max); |
| 198 | |
| 199 | pcm_params_free(params); |
| 200 | } |
| 201 | |
| 202 | return 0; |
| 203 | } |