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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 | /* * Copyright (c) 2019 Piotr Mienkowski * * SPDX-License-Identifier: Apache-2.0 */ /** * @addtogroup t_gpio_api * @{ * @defgroup t_gpio_api_pin test_gpio_api_pin * @brief TestPurpose: verify all gpio pin functions using single pin configured * as input/output. * @} */ #include <limits.h> #include <sys/util.h> #include "test_gpio_api.h" static void pin_get_raw_and_verify(struct device *port, unsigned int pin, int val_expected, int idx) { int val_actual; val_actual = gpio_pin_get_raw(port, pin); zassert_true(val_actual >= 0, "Test point %d: failed to get physical pin value", idx); zassert_equal(val_expected, val_actual, "Test point %d: invalid physical pin get value", idx); } static void pin_get_and_verify(struct device *port, unsigned int pin, int val_expected, int idx) { int val_actual; val_actual = gpio_pin_get(port, pin); zassert_true(val_actual >= 0, "Test point %d: failed to get logical pin value", idx); zassert_equal(val_expected, val_actual, "Test point %d: invalid logical pin get value", idx); } static void pin_set_raw_and_verify(struct device *port, unsigned int pin, int val, int idx) { zassert_equal(gpio_pin_set_raw(port, pin, val), 0, "Test point %d: failed to set physical pin value", idx); k_busy_wait(TEST_GPIO_MAX_RISE_FALL_TIME_US); } static void pin_set_and_verify(struct device *port, unsigned int pin, int val, int idx) { zassert_equal(gpio_pin_set(port, pin, val), 0, "Test point %d: failed to set logical pin value", idx); k_busy_wait(TEST_GPIO_MAX_RISE_FALL_TIME_US); } /** @brief Verify gpio_pin_toggle function. * * - Verify that gpio_pin_toggle function changes pin state from active to * inactive and vice versa. */ void test_gpio_pin_toggle(void) { struct device *port; int val_expected; int ret; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | GPIO_INPUT); if (ret == -ENOTSUP) { TC_PRINT("Simultaneous pin in/out mode is not supported.\n"); ztest_test_skip(); return; } zassert_equal(ret, 0, "Failed to configure the pin"); pin_set_raw_and_verify(port, TEST_PIN, 1, 0); for (int i = 0; i < 5; i++) { ret = gpio_pin_toggle(port, TEST_PIN); zassert_equal(ret, 0, "Failed to toggle pin value"); k_busy_wait(TEST_GPIO_MAX_RISE_FALL_TIME_US); val_expected = i % 2; pin_get_raw_and_verify(port, TEST_PIN, val_expected, i); } } /** @brief Verify visually gpio_pin_toggle function. * * This test configures the pin using board DTS flags which should * correctly set pin active state via GPIO_ACTIVE_LOW/_HIGH flags. * It is possible to do a visual check to confirm that "LED ON", "LED OFF" * messages correspond to the LED being turned ON or OFF. * * - Verify visually that gpio_pin_toggle function changes pin state from active * to inactive and vice versa. */ void test_gpio_pin_toggle_visual(void) { struct device *port; int val_expected; int ret; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | TEST_PIN_DTS_FLAGS); zassert_equal(ret, 0, "Failed to configure the pin"); pin_set_and_verify(port, TEST_PIN, 1, 0); TC_PRINT("LED ON\n"); for (int i = 0; i < 3; i++) { k_sleep(K_SECONDS(2)); ret = gpio_pin_toggle(port, TEST_PIN); zassert_equal(ret, 0, "Failed to toggle pin value"); k_busy_wait(TEST_GPIO_MAX_RISE_FALL_TIME_US); val_expected = i % 2; TC_PRINT("LED %s\n", val_expected == 1 ? "ON" : "OFF"); } } /** @brief Verify gpio_pin_set_raw, gpio_pin_get_raw functions. * * - Verify that gpio_pin_get_raw reads the same value as set by * gpio_pin_set_raw function. */ void test_gpio_pin_set_get_raw(void) { struct device *port; int val_expected; int ret; const int test_vector[] = { 4, 1, 45, 0, 0, -7, 0, 0, 0, INT_MAX, INT_MIN, 0 }; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | GPIO_INPUT); if (ret == -ENOTSUP) { TC_PRINT("Simultaneous pin in/out mode is not supported.\n"); ztest_test_skip(); return; } zassert_equal(ret, 0, "Failed to configure the pin"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_raw_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = test_vector[i] != 0 ? 1 : 0; pin_get_raw_and_verify(port, TEST_PIN, val_expected, i); } } /** @brief Verify gpio_pin_set, gpio_pin_get functions. * * - Verify that gpio_pin_get reads the same value as set by gpio_pin_set * function. */ void test_gpio_pin_set_get(void) { struct device *port; int val_expected; int ret; const int test_vector[] = { 1, 2, 3, 0, 4, 0, 0, 0, 17, INT_MAX, INT_MIN, 0 }; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | GPIO_INPUT); if (ret == -ENOTSUP) { TC_PRINT("Simultaneous pin in/out mode is not supported.\n"); ztest_test_skip(); return; } zassert_equal(ret, 0, "Failed to configure the pin"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = test_vector[i] != 0 ? 1 : 0; pin_get_and_verify(port, TEST_PIN, val_expected, i); } } /** @brief Verify GPIO_ACTIVE_HIGH flag. * * - Verify that there is no functional difference between gpio_pin_set_raw and * gpio_pin_set functions if the pin is configured as Active High. * - Verify that there is no functional difference between gpio_pin_get_raw and * gpio_pin_get functions if the pin is configured as Active High. */ void test_gpio_pin_set_get_active_high(void) { struct device *port; int val_expected; int ret; const int test_vector[] = {0, 2, 0, 9, -1, 0, 0, 1, INT_MAX, INT_MIN}; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | GPIO_INPUT | GPIO_ACTIVE_HIGH); if (ret == -ENOTSUP) { TC_PRINT("Simultaneous pin in/out mode is not supported.\n"); ztest_test_skip(); return; } zassert_equal(ret, 0, "Failed to configure the pin"); TC_PRINT("Step 1: Set logical, get logical and physical pin value\n"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = test_vector[i] != 0 ? 1 : 0; pin_get_and_verify(port, TEST_PIN, val_expected, i); pin_get_raw_and_verify(port, TEST_PIN, val_expected, i); } TC_PRINT("Step 2: Set physical, get logical and physical pin value\n"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_raw_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = test_vector[i] != 0 ? 1 : 0; pin_get_and_verify(port, TEST_PIN, val_expected, i); pin_get_raw_and_verify(port, TEST_PIN, val_expected, i); } } /** @brief Verify GPIO_ACTIVE_LOW flag. * * - Verify that value set by gpio_pin_set function is inverted compared to * gpio_pin_set_raw if the pin is configured as Active Low. * - Verify that value read by gpio_pin_get function is inverted compared to * gpio_pin_get_raw if the pin is configured as Active Low. */ void test_gpio_pin_set_get_active_low(void) { struct device *port; int val_expected, val_raw_expected; int ret; const int test_vector[] = {0, 4, 0, 0, 1, 8, -3, -12, 0}; port = device_get_binding(TEST_DEV); zassert_not_null(port, "device " TEST_DEV " not found"); TC_PRINT("Running test on port=%s, pin=%d\n", TEST_DEV, TEST_PIN); ret = gpio_pin_configure(port, TEST_PIN, GPIO_OUTPUT | GPIO_INPUT | GPIO_ACTIVE_LOW); if (ret == -ENOTSUP) { TC_PRINT("Simultaneous pin in/out mode is not supported.\n"); ztest_test_skip(); return; } zassert_equal(ret, 0, "Failed to configure the pin"); TC_PRINT("Step 1: Set logical, get logical and physical pin value\n"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = (test_vector[i] != 0) ? 1 : 0; val_raw_expected = (val_expected != 0) ? 0 : 1; pin_get_and_verify(port, TEST_PIN, val_expected, i); pin_get_raw_and_verify(port, TEST_PIN, val_raw_expected, i); } TC_PRINT("Step 2: Set physical, get logical and physical pin value\n"); for (int i = 0; i < ARRAY_SIZE(test_vector); i++) { pin_set_raw_and_verify(port, TEST_PIN, test_vector[i], i); val_expected = (test_vector[i] != 0) ? 0 : 1; val_raw_expected = (val_expected != 0) ? 0 : 1; pin_get_and_verify(port, TEST_PIN, val_expected, i); pin_get_raw_and_verify(port, TEST_PIN, val_raw_expected, i); } } |