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Diffstat (limited to '')
| -rw-r--r-- | src/modules/module-avb/msrp.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/modules/module-avb/msrp.h b/src/modules/module-avb/msrp.h new file mode 100644 index 0000000..0922e6b --- /dev/null +++ b/src/modules/module-avb/msrp.h @@ -0,0 +1,134 @@ +/* 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 AVB_MSRP_H +#define AVB_MSRP_H + +#include "internal.h" +#include "mrp.h" + +#define AVB_MSRP_ETH 0x22ea +#define AVB_MSRP_MAC { 0x01, 0x80, 0xc2, 0x00, 0x00, 0xe }; + +#define AVB_MSRP_ATTRIBUTE_TYPE_TALKER_ADVERTISE 1 +#define AVB_MSRP_ATTRIBUTE_TYPE_TALKER_FAILED 2 +#define AVB_MSRP_ATTRIBUTE_TYPE_LISTENER 3 +#define AVB_MSRP_ATTRIBUTE_TYPE_DOMAIN 4 +#define AVB_MSRP_ATTRIBUTE_TYPE_VALID(t) ((t)>=1 && (t)<=4) + +struct avb_packet_msrp_msg { + uint8_t attribute_type; + uint8_t attribute_length; + uint16_t attribute_list_length; + uint8_t attribute_list[0]; +} __attribute__ ((__packed__)); + +#define AVB_MSRP_TSPEC_MAX_INTERVAL_FRAMES_DEFAULT 1 +#define AVB_MSRP_RANK_DEFAULT 1 +#define AVB_MSRP_PRIORITY_DEFAULT 3 + +struct avb_packet_msrp_talker { + uint64_t stream_id; + uint8_t dest_addr[6]; + uint16_t vlan_id; + uint16_t tspec_max_frame_size; + uint16_t tspec_max_interval_frames; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned priority:3; + unsigned rank:1; + unsigned reserved:4; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned reserved:4; + unsigned rank:1; + unsigned priority:3; +#endif + uint32_t accumulated_latency; +} __attribute__ ((__packed__)); + +/* failure codes */ +#define AVB_MRP_FAIL_BANDWIDTH 1 +#define AVB_MRP_FAIL_BRIDGE 2 +#define AVB_MRP_FAIL_TC_BANDWIDTH 3 +#define AVB_MRP_FAIL_ID_BUSY 4 +#define AVB_MRP_FAIL_DSTADDR_BUSY 5 +#define AVB_MRP_FAIL_PREEMPTED 6 +#define AVB_MRP_FAIL_LATENCY_CHNG 7 +#define AVB_MRP_FAIL_PORT_NOT_AVB 8 +#define AVB_MRP_FAIL_DSTADDR_FULL 9 +#define AVB_MRP_FAIL_AVB_MRP_RESOURCE 10 +#define AVB_MRP_FAIL_MMRP_RESOURCE 11 +#define AVB_MRP_FAIL_DSTADDR_FAIL 12 +#define AVB_MRP_FAIL_PRIO_NOT_SR 13 +#define AVB_MRP_FAIL_FRAME_SIZE 14 +#define AVB_MRP_FAIL_FANIN_EXCEED 15 +#define AVB_MRP_FAIL_STREAM_CHANGE 16 +#define AVB_MRP_FAIL_VLAN_BLOCKED 17 +#define AVB_MRP_FAIL_VLAN_DISABLED 18 +#define AVB_MRP_FAIL_SR_PRIO_ERR 19 + +struct avb_packet_msrp_talker_fail { + struct avb_packet_msrp_talker talker; + uint64_t bridge_id; + uint8_t failure_code; +} __attribute__ ((__packed__)); + +struct avb_packet_msrp_listener { + uint64_t stream_id; +} __attribute__ ((__packed__)); + +/* domain discovery */ +#define AVB_MSRP_CLASS_ID_DEFAULT 6 +#define AVB_DEFAULT_VLAN 2 + +struct avb_packet_msrp_domain { + uint8_t sr_class_id; + uint8_t sr_class_priority; + uint16_t sr_class_vid; +} __attribute__ ((__packed__)); + +#define AVB_MSRP_LISTENER_PARAM_IGNORE 0 +#define AVB_MSRP_LISTENER_PARAM_ASKING_FAILED 1 +#define AVB_MSRP_LISTENER_PARAM_READY 2 +#define AVB_MSRP_LISTENER_PARAM_READY_FAILED 3 + +struct avb_msrp_attribute { + struct avb_mrp_attribute *mrp; + uint8_t type; + uint8_t param; + union { + struct avb_packet_msrp_talker talker; + struct avb_packet_msrp_talker_fail talker_fail; + struct avb_packet_msrp_listener listener; + struct avb_packet_msrp_domain domain; + } attr; +}; + +struct avb_msrp; + +struct avb_msrp_attribute *avb_msrp_attribute_new(struct avb_msrp *msrp, + uint8_t type); + +struct avb_msrp *avb_msrp_register(struct server *server); + +#endif /* AVB_MSRP_H */ |