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[protocol] Add the implementation of get mauv #246

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Merged
esnguyen merged 1 commit into from
Apr 23, 2026
Merged

[protocol] Add the implementation of get mauv #246

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32 changes: 29 additions & 3 deletions protocol/mauv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,35 @@

#include "mauv.h"

int libhoth_get_mauv(struct libhoth_device* dev, uint8_t state,
uint8_t category, struct hoth_response_mauv* mauv) {
// TODO: implement this later. For now just return a dummy value.
#include <stddef.h>
#include <stdint.h>

#include "protocol/host_cmd.h"

int libhoth_fetch_mauv(struct libhoth_device* dev, uint8_t state,
uint8_t category, struct hoth_response_mauv* mauv) {
struct mauv_request request = {
.category = category,
.state = state,
.reserved_0 = 0,
};

size_t rlen = 0;
int ret = libhoth_hostcmd_exec(
dev, HOTH_CMD_BOARD_SPECIFIC_BASE + EC_PRV_CMD_HAVEN_MAUV, 0, &request,
sizeof(request), mauv, sizeof(*mauv), &rlen);
if (ret != 0) {
return ret;
}

if (rlen == sizeof(uint32_t)) {
// Old version response: only returns the version number.
return 0;
}

if (rlen != sizeof(struct hoth_response_mauv)) {
return -1;
}

return 0;
}
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