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milan-avb: milan: adding set/get clock-source for a clock-domain
This commit is contained in:
hackerman-kl
Wim Taymans
parent
bb1ef8ea5e
commit
6f1938d501
4 changed files with 163 additions and 0 deletions
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@ -738,6 +738,7 @@ if build_module_avb
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'module-avb/aecp-aem.c',
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'module-avb/aecp-aem-cmds-resps/cmd-available.c',
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'module-avb/aecp-aem-cmds-resps/cmd-get-set-name.c',
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'module-avb/aecp-aem-cmds-resps/cmd-get-set-clock-source.c',
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'module-avb/aecp-aem-cmds-resps/cmd-register-unsolicited-notifications.c',
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'module-avb/aecp-aem-cmds-resps/cmd-deregister-unsolicited-notifications.c',
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'module-avb/aecp-aem-cmds-resps/cmd-register-unsolicited-notifications.c',
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@ -0,0 +1,141 @@
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/* AVB support */
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/* SPDX-FileCopyrightText: Copyright © 2025 Kebag-Logic */
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/* SPDX-FileCopyrightText: Copyright © 2025 Alexandre Malki <alexandre.malki@kebag-logic.com> */
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/* SPDX-License-Identifier: MIT */
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#include <stdint.h>
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#include <stdbool.h>
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#include "../aecp-aem-state.h"
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#include "../descriptors.h"
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#include "../aecp-aem-types.h"
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#include "cmd-resp-helpers.h"
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#include "reply-unsol-helpers.h"
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#include "cmd-get-set-clock-source.h"
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static int reply_invalid_clock_source(struct aecp *aecp,
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struct avb_aem_desc_clock_domain *desc, const void *m, int len)
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{
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uint8_t buf[128];
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struct avb_ethernet_header *h = (struct avb_ethernet_header *)buf;
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struct avb_packet_aecp_aem *p = SPA_PTROFF(h, sizeof(*h), void);
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struct avb_packet_aecp_aem_setget_clock_source *sclk_source;
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memcpy(buf, m, len);
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sclk_source =
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(struct avb_packet_aecp_aem_setget_clock_source *) p->payload;
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/** The descriptor keep the network endianess */
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sclk_source->clock_source_index = desc->clock_source_index;
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// Reply success with the old value which is the current if it fails.
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return reply_success(aecp, buf, len);
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}
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static int handle_unsol_set_clock_source(struct aecp *aecp, struct descriptor *desc,
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const void *m, int len, uint64_t ctrler_id)
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{
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uint8_t buf[128];
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struct aecp_aem_base_info bi = { 0 };
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int rc;
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memcpy(buf, m, len);
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bi.controller_entity_id = htobe64(ctrler_id);
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bi.expire_timeout = INT64_MAX;
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rc = reply_unsolicited_notifications(aecp, &bi, buf, len, false);
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return rc;
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}
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/**
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* \see IEEE 1722.1-2021, 7.4.24. SET_CLOCK_SOURCE Command
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* \see Milan V1.2 5.4.2.15
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* \todo verify if this is valid for AVB
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*/
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int handle_cmd_get_clock_source_milan_v12(struct aecp *aecp, int64_t now,
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const void *m, int len)
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{
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uint8_t buf[128];
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struct avb_ethernet_header *h = (struct avb_ethernet_header *) buf;
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struct avb_packet_aecp_aem *p = SPA_PTROFF(h, sizeof(*h), void);
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struct avb_packet_aecp_aem_setget_clock_source *sclk_source;
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struct avb_aem_desc_clock_domain* dclk_domain;
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struct descriptor *desc;
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uint16_t desc_index;
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uint16_t desc_type;
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memcpy(buf, m, len);
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sclk_source =
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(struct avb_packet_aecp_aem_setget_clock_source *) p->payload;
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desc_index = htons(sclk_source->descriptor_id);
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desc_type = htons(sclk_source->descriptor_id);
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desc = server_find_descriptor(aecp->server, desc_type, desc_index);
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if (desc == NULL)
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return reply_status(aecp,
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AVB_AECP_AEM_STATUS_NO_SUCH_DESCRIPTOR, m, len);
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dclk_domain = (struct avb_aem_desc_clock_domain*) desc->ptr;
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/** Descriptors always keep the network endianness */
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sclk_source->clock_source_index = dclk_domain->clock_source_index;
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len = sizeof(*p) + sizeof(*sclk_source) + sizeof(*h);
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return reply_success(aecp, m, len);
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}
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/**
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* \see IEEE 1722.1-2021, 7.4.23. SET_CLOCK_SOURCE Command
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* \see Milan V1.2 5.4.2.15
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* \todo verify if this is valid for AVB
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*/
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int handle_cmd_set_clock_source_milan_v12(struct aecp *aecp, int64_t now,
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const void *m, int len)
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{
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int rc;
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struct server *server = aecp->server;
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const struct avb_ethernet_header *h = m;
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const struct avb_packet_aecp_aem *p = SPA_PTROFF(h, sizeof(*h), void);
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struct avb_packet_aecp_aem_setget_clock_source *sclk_source;
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/** Information in the packet */
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uint16_t desc_type;
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uint16_t desc_index;
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uint16_t clock_src_index;
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uint64_t ctrlr_id;
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/*Information about the system */
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struct descriptor *desc;
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struct avb_aem_desc_clock_domain* dclk_domain;
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sclk_source =
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(struct avb_packet_aecp_aem_setget_clock_source *) p->payload;
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desc_type = ntohs(sclk_source->descriptor_type);
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desc_index = ntohs(sclk_source->descriptor_id);
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clock_src_index = ntohs(sclk_source->clock_source_index);
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ctrlr_id = htobe64(p->aecp.controller_guid);
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/** Retrieve the descriptor */
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desc = server_find_descriptor(server, desc_type, desc_index);
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if (desc == NULL)
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return reply_status(aecp,
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AVB_AECP_AEM_STATUS_NO_SUCH_DESCRIPTOR, m, len);
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dclk_domain = (struct avb_aem_desc_clock_domain *) desc->ptr;
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if (clock_src_index >= dclk_domain->clock_sources_count) {
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return reply_invalid_clock_source(aecp, dclk_domain, m, len);
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}
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/** Descriptor always keep the network endianness */
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dclk_domain->clock_source_index = htons(clock_src_index);
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rc = reply_success(aecp, m, len);
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if (rc) {
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pw_log_error("Reply failed for set_clock_source\n");
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return -1;
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}
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return handle_unsol_set_clock_source(aecp, desc, m, len, ctrlr_id);
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}
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@ -0,0 +1,14 @@
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/* AVB support */
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/* SPDX-FileCopyrightText: Copyright © 2025 Kebag-Logic */
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/* SPDX-FileCopyrightText: Copyright © 2025 Alexandre Malki <alexandre.malki@kebag-logic.com> */
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/* SPDX-License-Identifier: MIT */
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#ifndef __AVB_AECP_AEM_CMD_GET_SET_CLOCK_SOURCE_H__
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#define __AVB_AECP_AEM_CMD_GET_SET_CLOCK_SOURCE_H__
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#include <stdint.h>
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int handle_cmd_set_clock_source_milan_v12(struct aecp *aecp, int64_t now, const void *m, int len);
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int handle_cmd_get_clock_source_milan_v12(struct aecp *aecp, int64_t now, const void *m, int len);
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#endif /* __AVB_AECP_AEM_CMD_GET_SET_CLOCK_SOURCE_H__ */
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@ -16,6 +16,7 @@
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#include "aecp-aem-cmds-resps/cmd-deregister-unsolicited-notifications.h"
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#include "aecp-aem-cmds-resps/cmd-get-set-name.h"
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#include "aecp-aem-cmds-resps/cmd-get-set-stream-format.h"
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#include "aecp-aem-cmds-resps/cmd-get-set-clock-source.h"
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#include "aecp-aem-cmds-resps/cmd-lock-entity.h"
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@ -328,6 +329,12 @@ static const struct cmd_info cmd_info_milan_v12[] = {
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AECP_AEM_HANDLE_CMD(AVB_AECP_AEM_CMD_GET_NAME, true,
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handle_cmd_get_name_common),
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AECP_AEM_HANDLE_CMD(AVB_AECP_AEM_CMD_SET_CLOCK_SOURCE, false,
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handle_cmd_set_clock_source_milan_v12),
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AECP_AEM_HANDLE_CMD(AVB_AECP_AEM_CMD_GET_CLOCK_SOURCE, true,
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handle_cmd_get_clock_source_milan_v12),
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};
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static const struct {
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