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63b1711021
The FastRPC implementation is loosely related to the sensor shell. It is useful to provide interfaces over FastRPC for sensor DSP firmware, and enables the sensor shell to provide most physical sensors. However, the FastRPC implementation has no meaningful connection with the sensor shell in terms of code. Move the FastRPC implementation to the project root to make it more intuitive to install and use and to separate it from a distinct project.
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/*
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* CHRE client daemon entry point
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*
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* Copyright (C) 2023 The Sensor Shell Contributors
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*
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* This file is part of sensh.
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*
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* Sensh is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <libhexagonrpc/fastrpc.h>
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#include <libhexagonrpc/interfaces/remotectl.def>
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#include <libhexagonrpc/session.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "interfaces/chre_slpi.def"
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/* TODO move these to libhexagonrpc since most clients use them */
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static int remotectl_open(int fd, char *name, struct fastrpc_context **ctx, void (*err_cb)(const char *err))
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{
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uint32_t handle;
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int32_t dlret;
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char err[256];
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int ret;
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ret = fastrpc2(&remotectl_open_def, fd, REMOTECTL_HANDLE,
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strlen(name) + 1, name,
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&handle,
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&dlret,
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256, err);
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if (ret == -1) {
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err_cb(strerror(errno));
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return ret;
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}
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if (dlret == -5) {
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err_cb(err);
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return dlret;
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}
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*ctx = fastrpc_create_context(fd, handle);
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return ret;
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}
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static int remotectl_close(struct fastrpc_context *ctx, void (*err_cb)(const char *err))
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{
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uint32_t dlret;
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char err[256];
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int ret;
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ret = fastrpc2(&remotectl_close_def, ctx->fd, REMOTECTL_HANDLE,
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ctx->handle,
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&dlret,
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256, err);
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if (ret == -1) {
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err_cb(strerror(errno));
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return ret;
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}
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fastrpc_destroy_context(ctx);
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return ret;
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}
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static void remotectl_err(const char *err)
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{
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fprintf(stderr, "Could not remotectl: %s\n", err);
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}
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static int chre_slpi_start_thread(struct fastrpc_context *ctx)
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{
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return fastrpc(&chre_slpi_start_thread_def, ctx);
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}
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static int chre_slpi_wait_on_thread_exit(struct fastrpc_context *ctx)
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{
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return fastrpc(&chre_slpi_wait_on_thread_exit_def, ctx);
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}
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int main()
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{
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struct fastrpc_context *ctx;
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int fd, ret;
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fd = hexagonrpc_fd_from_env();
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if (fd == -1)
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return 1;
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ret = remotectl_open(fd, "chre_slpi", &ctx, remotectl_err);
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if (ret)
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return 1;
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ret = chre_slpi_start_thread(ctx);
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if (ret) {
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fprintf(stderr, "Could not start CHRE\n");
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goto err;
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}
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ret = chre_slpi_wait_on_thread_exit(ctx);
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if (ret) {
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fprintf(stderr, "Could not wait for CHRE thread\n");
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goto err;
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}
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err:
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remotectl_close(ctx, remotectl_err);
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}
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