diff options
Diffstat (limited to 'modules/usbaudio/format.c')
| -rw-r--r-- | modules/usbaudio/format.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/modules/usbaudio/format.c b/modules/usbaudio/format.c deleted file mode 100644 index 6aac1d3..0000000 --- a/modules/usbaudio/format.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define LOG_TAG "usb_profile" -/*#define LOG_NDEBUG 0*/ - -#include "format.h" - -#include <tinyalsa/asoundlib.h> - -#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) - -/* - * Maps from bit position in pcm_mask to AUDIO_ format constants. - */ -static audio_format_t const format_value_map[] = { - AUDIO_FORMAT_PCM_8_BIT, /* 00 - SNDRV_PCM_FORMAT_S8 */ - AUDIO_FORMAT_PCM_8_BIT, /* 01 - SNDRV_PCM_FORMAT_U8 */ - AUDIO_FORMAT_PCM_16_BIT, /* 02 - SNDRV_PCM_FORMAT_S16_LE */ - AUDIO_FORMAT_INVALID, /* 03 - SNDRV_PCM_FORMAT_S16_BE */ - AUDIO_FORMAT_INVALID, /* 04 - SNDRV_PCM_FORMAT_U16_LE */ - AUDIO_FORMAT_INVALID, /* 05 - SNDRV_PCM_FORMAT_U16_BE */ - AUDIO_FORMAT_INVALID, /* 06 - SNDRV_PCM_FORMAT_S24_LE */ - AUDIO_FORMAT_INVALID, /* 07 - SNDRV_PCM_FORMAT_S24_BE */ - AUDIO_FORMAT_INVALID, /* 08 - SNDRV_PCM_FORMAT_U24_LE */ - AUDIO_FORMAT_INVALID, /* 09 - SNDRV_PCM_FORMAT_U24_BE */ - AUDIO_FORMAT_PCM_32_BIT, /* 10 - SNDRV_PCM_FORMAT_S32_LE */ - AUDIO_FORMAT_INVALID, /* 11 - SNDRV_PCM_FORMAT_S32_BE */ - AUDIO_FORMAT_INVALID, /* 12 - SNDRV_PCM_FORMAT_U32_LE */ - AUDIO_FORMAT_INVALID, /* 13 - SNDRV_PCM_FORMAT_U32_BE */ - AUDIO_FORMAT_PCM_FLOAT, /* 14 - SNDRV_PCM_FORMAT_FLOAT_LE */ - AUDIO_FORMAT_INVALID, /* 15 - SNDRV_PCM_FORMAT_FLOAT_BE */ - AUDIO_FORMAT_INVALID, /* 16 - SNDRV_PCM_FORMAT_FLOAT64_LE */ - AUDIO_FORMAT_INVALID, /* 17 - SNDRV_PCM_FORMAT_FLOAT64_BE */ - AUDIO_FORMAT_INVALID, /* 18 - SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE */ - AUDIO_FORMAT_INVALID, /* 19 - SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE */ - AUDIO_FORMAT_INVALID, /* 20 - SNDRV_PCM_FORMAT_MU_LAW */ - AUDIO_FORMAT_INVALID, /* 21 - SNDRV_PCM_FORMAT_A_LAW */ - AUDIO_FORMAT_INVALID, /* 22 - SNDRV_PCM_FORMAT_IMA_ADPCM */ - AUDIO_FORMAT_INVALID, /* 23 - SNDRV_PCM_FORMAT_MPEG */ - AUDIO_FORMAT_INVALID, /* 24 - SNDRV_PCM_FORMAT_GSM */ - AUDIO_FORMAT_INVALID, /* 25 -> 30 (not assigned) */ - AUDIO_FORMAT_INVALID, - AUDIO_FORMAT_INVALID, - AUDIO_FORMAT_INVALID, - AUDIO_FORMAT_INVALID, - AUDIO_FORMAT_INVALID, - AUDIO_FORMAT_INVALID, /* 31 - SNDRV_PCM_FORMAT_SPECIAL */ - AUDIO_FORMAT_PCM_24_BIT_PACKED, /* 32 - SNDRV_PCM_FORMAT_S24_3LE */ - AUDIO_FORMAT_INVALID, /* 33 - SNDRV_PCM_FORMAT_S24_3BE */ - AUDIO_FORMAT_INVALID, /* 34 - SNDRV_PCM_FORMAT_U24_3LE */ - AUDIO_FORMAT_INVALID, /* 35 - SNDRV_PCM_FORMAT_U24_3BE */ - AUDIO_FORMAT_INVALID, /* 36 - SNDRV_PCM_FORMAT_S20_3LE */ - AUDIO_FORMAT_INVALID, /* 37 - SNDRV_PCM_FORMAT_S20_3BE */ - AUDIO_FORMAT_INVALID, /* 38 - SNDRV_PCM_FORMAT_U20_3LE */ - AUDIO_FORMAT_INVALID, /* 39 - SNDRV_PCM_FORMAT_U20_3BE */ - AUDIO_FORMAT_INVALID, /* 40 - SNDRV_PCM_FORMAT_S18_3LE */ - AUDIO_FORMAT_INVALID, /* 41 - SNDRV_PCM_FORMAT_S18_3BE */ - AUDIO_FORMAT_INVALID, /* 42 - SNDRV_PCM_FORMAT_U18_3LE */ - AUDIO_FORMAT_INVALID, /* 43 - SNDRV_PCM_FORMAT_U18_3BE */ - AUDIO_FORMAT_INVALID, /* 44 - SNDRV_PCM_FORMAT_G723_24 */ - AUDIO_FORMAT_INVALID, /* 45 - SNDRV_PCM_FORMAT_G723_24_1B */ - AUDIO_FORMAT_INVALID, /* 46 - SNDRV_PCM_FORMAT_G723_40 */ - AUDIO_FORMAT_INVALID, /* 47 - SNDRV_PCM_FORMAT_G723_40_1B */ - AUDIO_FORMAT_INVALID, /* 48 - SNDRV_PCM_FORMAT_DSD_U8 */ - AUDIO_FORMAT_INVALID /* 49 - SNDRV_PCM_FORMAT_DSD_U16_LE */ -}; - -audio_format_t get_format_for_mask(struct pcm_mask* mask) -{ - int num_slots = sizeof(mask->bits) / sizeof(mask->bits[0]); - int bits_per_slot = sizeof(mask->bits[0]) * 8; - - int table_size = sizeof(format_value_map) / sizeof(format_value_map[0]); - - int slot_index, bit_index, table_index; - table_index = 0; - int num_written = 0; - for (slot_index = 0; slot_index < num_slots; slot_index++) { - unsigned bit_mask = 1; - for (bit_index = 0; bit_index < bits_per_slot; bit_index++) { - /* don't return b-bit formats even if they are supported */ - if (table_index >= 2 && (mask->bits[slot_index] & bit_mask) != 0) { - /* just return the first one */ - return table_index < table_size - ? format_value_map[table_index] - : AUDIO_FORMAT_INVALID; - } - bit_mask <<= 1; - table_index++; - } - } - - return AUDIO_FORMAT_INVALID; -} - -/* - * Maps from bit position in pcm_mask to PCM_ format constants. - */ -int8_t const pcm_format_value_map[50] = { - PCM_FORMAT_S8, /* 00 - SNDRV_PCM_FORMAT_S8 */ - PCM_FORMAT_INVALID, /* 01 - SNDRV_PCM_FORMAT_U8 */ - PCM_FORMAT_S16_LE, /* 02 - SNDRV_PCM_FORMAT_S16_LE */ - PCM_FORMAT_INVALID, /* 03 - SNDRV_PCM_FORMAT_S16_BE */ - PCM_FORMAT_INVALID, /* 04 - SNDRV_PCM_FORMAT_U16_LE */ - PCM_FORMAT_INVALID, /* 05 - SNDRV_PCM_FORMAT_U16_BE */ - PCM_FORMAT_S24_3LE, /* 06 - SNDRV_PCM_FORMAT_S24_LE */ - PCM_FORMAT_INVALID, /* 07 - SNDRV_PCM_FORMAT_S24_BE */ - PCM_FORMAT_INVALID, /* 08 - SNDRV_PCM_FORMAT_U24_LE */ - PCM_FORMAT_INVALID, /* 09 - SNDRV_PCM_FORMAT_U24_BE */ - PCM_FORMAT_S32_LE, /* 10 - SNDRV_PCM_FORMAT_S32_LE */ - PCM_FORMAT_INVALID, /* 11 - SNDRV_PCM_FORMAT_S32_BE */ - PCM_FORMAT_INVALID, /* 12 - SNDRV_PCM_FORMAT_U32_LE */ - PCM_FORMAT_INVALID, /* 13 - SNDRV_PCM_FORMAT_U32_BE */ - PCM_FORMAT_INVALID, /* 14 - SNDRV_PCM_FORMAT_FLOAT_LE */ - PCM_FORMAT_INVALID, /* 15 - SNDRV_PCM_FORMAT_FLOAT_BE */ - PCM_FORMAT_INVALID, /* 16 - SNDRV_PCM_FORMAT_FLOAT64_LE */ - PCM_FORMAT_INVALID, /* 17 - SNDRV_PCM_FORMAT_FLOAT64_BE */ - PCM_FORMAT_INVALID, /* 18 - SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE */ - PCM_FORMAT_INVALID, /* 19 - SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE */ - PCM_FORMAT_INVALID, /* 20 - SNDRV_PCM_FORMAT_MU_LAW */ - PCM_FORMAT_INVALID, /* 21 - SNDRV_PCM_FORMAT_A_LAW */ - PCM_FORMAT_INVALID, /* 22 - SNDRV_PCM_FORMAT_IMA_ADPCM */ - PCM_FORMAT_INVALID, /* 23 - SNDRV_PCM_FORMAT_MPEG */ - PCM_FORMAT_INVALID, /* 24 - SNDRV_PCM_FORMAT_GSM */ - PCM_FORMAT_INVALID, /* 25 -> 30 (not assigned) */ - PCM_FORMAT_INVALID, - PCM_FORMAT_INVALID, - PCM_FORMAT_INVALID, - PCM_FORMAT_INVALID, - PCM_FORMAT_INVALID, - PCM_FORMAT_INVALID, /* 31 - SNDRV_PCM_FORMAT_SPECIAL */ - PCM_FORMAT_S24_3LE, /* 32 - SNDRV_PCM_FORMAT_S24_3LE */ /* ??? */ - PCM_FORMAT_INVALID, /* 33 - SNDRV_PCM_FORMAT_S24_3BE */ - PCM_FORMAT_INVALID, /* 34 - SNDRV_PCM_FORMAT_U24_3LE */ - PCM_FORMAT_INVALID, /* 35 - SNDRV_PCM_FORMAT_U24_3BE */ - PCM_FORMAT_INVALID, /* 36 - SNDRV_PCM_FORMAT_S20_3LE */ - PCM_FORMAT_INVALID, /* 37 - SNDRV_PCM_FORMAT_S20_3BE */ - PCM_FORMAT_INVALID, /* 38 - SNDRV_PCM_FORMAT_U20_3LE */ - PCM_FORMAT_INVALID, /* 39 - SNDRV_PCM_FORMAT_U20_3BE */ - PCM_FORMAT_INVALID, /* 40 - SNDRV_PCM_FORMAT_S18_3LE */ - PCM_FORMAT_INVALID, /* 41 - SNDRV_PCM_FORMAT_S18_3BE */ - PCM_FORMAT_INVALID, /* 42 - SNDRV_PCM_FORMAT_U18_3LE */ - PCM_FORMAT_INVALID, /* 43 - SNDRV_PCM_FORMAT_U18_3BE */ - PCM_FORMAT_INVALID, /* 44 - SNDRV_PCM_FORMAT_G723_24 */ - PCM_FORMAT_INVALID, /* 45 - SNDRV_PCM_FORMAT_G723_24_1B */ - PCM_FORMAT_INVALID, /* 46 - SNDRV_PCM_FORMAT_G723_40 */ - PCM_FORMAT_INVALID, /* 47 - SNDRV_PCM_FORMAT_G723_40_1B */ - PCM_FORMAT_INVALID, /* 48 - SNDRV_PCM_FORMAT_DSD_U8 */ - PCM_FORMAT_INVALID /* 49 - SNDRV_PCM_FORMAT_DSD_U16_LE */ -}; - -/* - * Scans the provided format mask and returns the first non-8 bit sample - * format supported by the devices. - */ -enum pcm_format get_pcm_format_for_mask(struct pcm_mask* mask) -{ - int num_slots = ARRAY_SIZE(mask->bits); - int bits_per_slot = sizeof(mask->bits[0]) * 8; - - int table_size = ARRAY_SIZE(pcm_format_value_map); - - int slot_index, bit_index, table_index; - table_index = 0; - int num_written = 0; - for (slot_index = 0; slot_index < num_slots && table_index < table_size; slot_index++) { - unsigned bit_mask = 1; - for (bit_index = 0; bit_index < bits_per_slot && table_index < table_size; bit_index++) { - /* skip any 8-bit formats */ - if (table_index >= 2 && (mask->bits[slot_index] & bit_mask) != 0) { - /* just return the first one which will be at least 16-bit */ - return (int)pcm_format_value_map[table_index]; - } - bit_mask <<= 1; - table_index++; - } - } - - return PCM_FORMAT_INVALID; -} |