| /* |
| * Copyright 2020 The Hafnium Authors. |
| * |
| * 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 |
| * |
| * https://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 "hf/plat/console.h" |
| |
| #include "test/hftest.h" |
| |
| /* clang-format off */ |
| #define CMD_GET_COMMAND_LINE "[hftest_ctrl:get_command_line]\n" |
| #define CMD_FINISHED "[hftest_ctrl:finished]\n" |
| /* clang-format on */ |
| |
| static char command_line[128]; |
| |
| static void write(const char *str) |
| { |
| while (*str != '\0') { |
| plat_console_putchar(*str); |
| str++; |
| } |
| } |
| |
| static bool read(char *buf, size_t max_len, struct memiter *str) |
| { |
| char c; |
| size_t len = 0; |
| |
| while (true) { |
| c = plat_console_getchar(); |
| if (c == '\r' || c == '\n') { |
| memiter_init(str, buf, len); |
| return true; |
| } |
| |
| if (len < max_len) { |
| buf[len++] = c; |
| } else { |
| return false; |
| } |
| } |
| } |
| |
| bool hftest_ctrl_start(const struct fdt *fdt, struct memiter *cmd) |
| { |
| (void)fdt; |
| |
| /* Let the console driver map its memory as device memory. */ |
| plat_console_mm_init(hftest_mm_get_stage1(), hftest_mm_get_ppool()); |
| |
| /* Initialize the console */ |
| plat_console_init(); |
| |
| /* Inform the host that we are ready to receive the command line. */ |
| write(CMD_GET_COMMAND_LINE); |
| |
| /* Read command line from the console. */ |
| read(command_line, ARRAY_SIZE(command_line), cmd); |
| |
| return true; |
| } |
| |
| void hftest_ctrl_finish(void) |
| { |
| /* |
| * Inform the host that this test has finished running and all |
| * subsequent logs belong to the next run. |
| */ |
| write(CMD_FINISHED); |
| |
| /* Reboot the device. */ |
| hftest_device_reboot(); |
| } |