Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | /* * Copyright (c) 2018 Intel Corporation * Copyright (c) 2021 Dennis Ruffer <daruffer@gmail.com> * * SPDX-License-Identifier: Apache-2.0 * * Use "device list" command for GPIO port names */ #include <zephyr/sys/printk.h> #include <zephyr/shell/shell.h> #include <zephyr/init.h> #include <string.h> #include <stdio.h> #include <zephyr/drivers/gpio.h> #include <stdlib.h> #include <ctype.h> #include <zephyr/logging/log.h> #define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL LOG_MODULE_REGISTER(gpio_shell); struct args_index { uint8_t port; uint8_t index; uint8_t mode; uint8_t value; }; static const struct args_index args_indx = { .port = 1, .index = 2, .mode = 3, .value = 3, }; static int cmd_gpio_conf(const struct shell *sh, size_t argc, char **argv) { uint8_t index = 0U; int type = GPIO_OUTPUT; const struct device *dev; if (isdigit((unsigned char)argv[args_indx.index][0]) != 0 && isalpha((unsigned char)argv[args_indx.mode][0]) != 0) { index = (uint8_t)atoi(argv[args_indx.index]); if (!strcmp(argv[args_indx.mode], "in")) { type = GPIO_INPUT; } else if (!strcmp(argv[args_indx.mode], "inu")) { type = GPIO_INPUT | GPIO_PULL_UP; } else if (!strcmp(argv[args_indx.mode], "ind")) { type = GPIO_INPUT | GPIO_PULL_DOWN; } else if (!strcmp(argv[args_indx.mode], "out")) { type = GPIO_OUTPUT; } else { return 0; } } else { shell_error(sh, "Wrong parameters for conf"); return -ENOTSUP; } dev = device_get_binding(argv[args_indx.port]); if (dev != NULL) { index = (uint8_t)atoi(argv[args_indx.index]); shell_print(sh, "Configuring %s pin %d", argv[args_indx.port], index); gpio_pin_configure(dev, index, type); } return 0; } static int cmd_gpio_get(const struct shell *sh, size_t argc, char **argv) { const struct device *dev; uint8_t index = 0U; int rc; if (isdigit((unsigned char)argv[args_indx.index][0]) != 0) { index = (uint8_t)atoi(argv[args_indx.index]); } else { shell_error(sh, "Wrong parameters for get"); return -EINVAL; } dev = device_get_binding(argv[args_indx.port]); if (dev != NULL) { index = (uint8_t)atoi(argv[2]); shell_print(sh, "Reading %s pin %d", argv[args_indx.port], index); rc = gpio_pin_get(dev, index); if (rc >= 0) { shell_print(sh, "Value %d", rc); } else { shell_error(sh, "Error %d reading value", rc); return -EIO; } } return 0; } static int cmd_gpio_set(const struct shell *sh, size_t argc, char **argv) { const struct device *dev; uint8_t index = 0U; uint8_t value = 0U; if (isdigit((unsigned char)argv[args_indx.index][0]) != 0 && isdigit((unsigned char)argv[args_indx.value][0]) != 0) { index = (uint8_t)atoi(argv[args_indx.index]); value = (uint8_t)atoi(argv[args_indx.value]); } else { shell_print(sh, "Wrong parameters for set"); return -EINVAL; } dev = device_get_binding(argv[args_indx.port]); if (dev != NULL) { index = (uint8_t)atoi(argv[2]); shell_print(sh, "Writing to %s pin %d", argv[args_indx.port], index); gpio_pin_set(dev, index, value); } return 0; } /* 500 msec = 1/2 sec */ #define SLEEP_TIME_MS 500 static int cmd_gpio_blink(const struct shell *sh, size_t argc, char **argv) { const struct device *dev; uint8_t index = 0U; uint8_t value = 0U; size_t count = 0; char data; if (isdigit((unsigned char)argv[args_indx.index][0]) != 0) { index = (uint8_t)atoi(argv[args_indx.index]); } else { shell_error(sh, "Wrong parameters for blink"); return -EINVAL; } dev = device_get_binding(argv[args_indx.port]); if (dev != NULL) { index = (uint8_t)atoi(argv[2]); shell_fprintf(sh, SHELL_NORMAL, "Blinking port %s index %d.", argv[1], index); shell_fprintf(sh, SHELL_NORMAL, " Hit any key to exit"); /* dummy read to clear any pending input */ (void)sh->iface->api->read(sh->iface, &data, sizeof(data), &count); while (true) { (void)sh->iface->api->read(sh->iface, &data, sizeof(data), &count); if (count != 0) { break; } gpio_pin_set(dev, index, value); value = !value; k_msleep(SLEEP_TIME_MS); } shell_fprintf(sh, SHELL_NORMAL, "\n"); } return 0; } SHELL_STATIC_SUBCMD_SET_CREATE(sub_gpio, SHELL_CMD_ARG(conf, NULL, "Configure GPIO", cmd_gpio_conf, 4, 0), SHELL_CMD_ARG(get, NULL, "Get GPIO value", cmd_gpio_get, 3, 0), SHELL_CMD_ARG(set, NULL, "Set GPIO", cmd_gpio_set, 4, 0), SHELL_CMD_ARG(blink, NULL, "Blink GPIO", cmd_gpio_blink, 3, 0), SHELL_SUBCMD_SET_END /* Array terminated. */ ); SHELL_CMD_REGISTER(gpio, &sub_gpio, "GPIO commands", NULL); |