| // SPDX-License-Identifier: (GPL-2.0+ OR MIT) |
| /* |
| * Copyright (c) 2019 Amlogic, Inc. All rights reserved. |
| */ |
| |
| #include <dm.h> |
| #include <asm/io.h> |
| #include <common.h> |
| #include <command.h> |
| #include <errno.h> |
| #include <misc.h> |
| |
| #define KEY_PARAMS_NUM 10 |
| #define OTHER_PARAMS_NUM 1 |
| |
| extern uint32_t get_time(void); |
| |
| static int do_irkey(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| uint32_t key_buf[KEY_PARAMS_NUM]; |
| uint32_t time_out = 0; |
| uint32_t time_base = 0; |
| struct udevice *ir_devp; |
| uint32_t key; |
| char *endp; |
| char str[16] = {0}; |
| u8 i; |
| |
| /*at least set a key*/ |
| if (argc < 3) |
| return -EINVAL; |
| |
| /*obtain timeout time*/ |
| time_out = simple_strtoul(argv[1], &endp, 0); |
| printf("time_out = %d\n",time_out); |
| if (*argv[1] == 0 || *endp != 0) |
| return -EINVAL; |
| |
| /*obtain IR keys value which need to detect*/ |
| for (i=2; i<argc; i++) { |
| key_buf[i-2] = simple_strtoul(argv[i], &endp, 0); |
| printf("key[%d] = %x\n",i-2, key_buf[i-2]); |
| if (*argv[i] == 0 || *endp != 0) |
| return -EINVAL; |
| } |
| |
| if (uclass_get_device_by_name(UCLASS_MISC, "meson-ir", &ir_devp)) { |
| printf("failed to get ir udevice\n"); |
| return -EINVAL; |
| } |
| |
| time_base = get_time(); |
| |
| while ((get_time() - time_base) < time_out) |
| { |
| if (misc_read(ir_devp, 0, &key, 1)) |
| continue; |
| |
| printf("keycode = %x\n",key); |
| for (i=2; i<argc; i++) { |
| if (key == key_buf[i-2]) { |
| snprintf(str, sizeof(str), "0x%x", key); |
| env_set("irkey_value", str); |
| return 0; |
| } |
| } |
| } |
| |
| return -EINVAL; |
| } |
| /*Maxium key arguments: 10*/ |
| U_BOOT_CMD( |
| irkey, (KEY_PARAMS_NUM + OTHER_PARAMS_NUM + 1), 0, do_irkey, |
| "irkey <timeout> <key1> ...<keyN> - maximum value of N: 10", |
| NULL |
| ); |