| /* |
| * Copyright (c) 2020-2022 Arm Limited. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Licensed under the Apache License, Version 2.0 (the License); you may |
| * not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <uapi/ethosu.h> |
| |
| #include <ethosu.hpp> |
| #include <exception> |
| #include <iostream> |
| |
| #include <fcntl.h> |
| #include <poll.h> |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| #include <unistd.h> |
| |
| namespace EthosU { |
| int eopen(const char *p, int) { |
| std::cout << "Opened filedescriptor for " << p; |
| return 1; |
| } |
| |
| int eclose(int) { |
| return 0; |
| } |
| |
| void *emmap(void *, size_t length, int, int, int, off_t) { |
| void *d = malloc(length); |
| return d; |
| } |
| |
| int emunmap(void *addr, size_t) { |
| free(addr); |
| return 0; |
| } |
| |
| int eioctl(int, unsigned long cmd, void *) { |
| int result = 0; |
| using namespace EthosU; |
| |
| switch (cmd) { |
| case ETHOSU_IOCTL_PING: |
| return result; |
| case ETHOSU_IOCTL_VERSION_REQ: |
| return result; |
| case ETHOSU_IOCTL_CAPABILITIES_REQ: |
| return result; |
| case ETHOSU_IOCTL_BUFFER_CREATE: |
| return result; |
| case ETHOSU_IOCTL_BUFFER_SET: |
| return result; |
| case ETHOSU_IOCTL_BUFFER_GET: |
| return result; |
| case ETHOSU_IOCTL_NETWORK_CREATE: |
| return result; |
| case ETHOSU_IOCTL_INFERENCE_CREATE: |
| return result; |
| case ETHOSU_IOCTL_INFERENCE_STATUS: |
| return result; |
| default: |
| throw EthosU::Exception("Unknown IOCTL"); |
| } |
| } |
| |
| int eppoll(struct pollfd *, nfds_t, const struct timespec *tmo_p, const sigset_t *) { |
| if (tmo_p == NULL) { |
| // sleep one second |
| usleep(1000000ul); |
| } else { |
| unsigned long t = tmo_p->tv_sec / 2; // sleep half of the time |
| t = t * 1000ul * 1000ul; // sec to microsec |
| usleep(t); |
| } |
| return 1; |
| } |
| } // namespace EthosU |