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61 lines
1.4 KiB
61 lines
1.4 KiB
4 months ago
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/*
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* Copyright (c) Hisilicon Technologies Co., Ltd.. 2021-2021. All rights reserved.
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* Description:
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "uapi_gpio.h"
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#include "uapi_system.h"
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td_s32 main(int argc, char *argv[])
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{
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td_s32 ret;
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td_u32 group;
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td_u32 bit;
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td_bool value;
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if (argc < 3) { /* argc must equal 3 */
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printf("./sample_gpio_read Group | Bit \n");
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return TD_FAILURE;
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}
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if (argv == TD_NULL) {
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printf("para argv is NULL.\n");
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return TD_FAILURE;
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}
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group = (td_u32)strtol(argv[1], NULL, 0); /* index 1 means Group */
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bit = (td_u32)strtol(argv[2], NULL, 0); /* index 2 means Bit */
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if (bit >= 8) { /* bit must less than 8 */
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printf("Bit must be 0 - 7!\n");
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return TD_FAILURE;
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}
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(td_void)uapi_sys_init();
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ret = uapi_gpio_init();
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if (ret != TD_SUCCESS) {
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printf("%s: %d ErrorCode=0x%x\n", __FILE__, __LINE__, ret);
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goto ERR0;
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}
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ret = uapi_gpio_read(group, bit, &value);
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if (ret != TD_SUCCESS) {
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printf("%s: %d ErrorCode=0x%x\n", __FILE__, __LINE__, ret);
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goto ERR1;
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} else {
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printf("gpio value =0x%x\n", value);
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}
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ERR1:
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ret = uapi_gpio_deinit();
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if (ret != TD_SUCCESS) {
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printf("%s: %d ErrorCode=0x%x\n", __FILE__, __LINE__, ret);
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}
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ERR0:
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(td_void)uapi_sys_deinit();
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return ret;
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}
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