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avb: use descriptors for ADP

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Remove some of the json parsing for now, work with descriptors.
Remove some parsing code.
Implement GET_AVB_INFO.
Keep descriptors in a list.
Add some utils.
This commit is contained in:
Wim Taymans 2022-03-18 15:18:11 +01:00
parent b6b8471540
commit 50199c9824
14 changed files with 584 additions and 434 deletions
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66
src/modules/module-avbtp/utils.h Normal file
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/* AVB support
*
* Copyright © 2022 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef AVBTP_UTILS_H
#define AVBTP_UTILS_H
#include "internal.h"
static inline char *avbtp_utils_format_id(char *str, size_t size, const uint64_t id)
{
snprintf(str, size, "%02x:%02x:%02x:%02x:%02x:%02x:%04x",
(uint8_t)(id >> 56),
(uint8_t)(id >> 48),
(uint8_t)(id >> 40),
(uint8_t)(id >> 32),
(uint8_t)(id >> 24),
(uint8_t)(id >> 16),
(uint16_t)(id));
return str;
}
static inline int avbtp_utils_parse_id(const char *str, int len, uint64_t *id)
{
char s[64];
uint8_t v[6];
uint16_t unique_id;
if (spa_json_parse_stringn(str, len, s, sizeof(s)) <= 0)
return -EINVAL;
if (sscanf(s, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx:%hx",
&v[0], &v[1], &v[2], &v[3],
&v[4], &v[5], &unique_id) == 7) {
*id = (uint64_t) v[0] << 56 |
(uint64_t) v[1] << 48 |
(uint64_t) v[2] << 40 |
(uint64_t) v[3] << 32 |
(uint64_t) v[4] << 24 |
(uint64_t) v[5] << 16 |
unique_id;
} else if (!spa_atou64(str, id, 0))
return -EINVAL;
return 0;
}
#endif /* AVBTP_UTILS_H */