110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <gpio.h>
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static int do_gpio_get_value(int argc, char *argv[])
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{
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int gpio, value;
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if (argc < 2)
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return COMMAND_ERROR_USAGE;
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gpio = simple_strtoul(argv[1], NULL, 0);
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value = gpio_get_value(gpio);
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if (value < 0)
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return 1;
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return value;
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}
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BAREBOX_CMD_START(gpio_get_value)
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.cmd = do_gpio_get_value,
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BAREBOX_CMD_DESC("return value of a GPIO pin")
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BAREBOX_CMD_OPTS("GPIO")
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BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
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BAREBOX_CMD_END
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static int do_gpio_set_value(int argc, char *argv[])
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{
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int gpio, value;
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if (argc < 3)
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return COMMAND_ERROR_USAGE;
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gpio = simple_strtoul(argv[1], NULL, 0);
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value = simple_strtoul(argv[2], NULL, 0);
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gpio_set_value(gpio, value);
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return 0;
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}
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BAREBOX_CMD_START(gpio_set_value)
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.cmd = do_gpio_set_value,
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BAREBOX_CMD_DESC("set a GPIO's output value")
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BAREBOX_CMD_OPTS("GPIO VALUE")
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BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
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BAREBOX_CMD_END
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static int do_gpio_direction_input(int argc, char *argv[])
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{
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int gpio, ret;
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if (argc < 2)
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return COMMAND_ERROR_USAGE;
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gpio = simple_strtoul(argv[1], NULL, 0);
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ret = gpio_direction_input(gpio);
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if (ret)
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return 1;
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return 0;
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}
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BAREBOX_CMD_START(gpio_direction_input)
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.cmd = do_gpio_direction_input,
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BAREBOX_CMD_DESC("set direction of a GPIO pin to input")
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BAREBOX_CMD_OPTS("GPIO")
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BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
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BAREBOX_CMD_END
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static int do_gpio_direction_output(int argc, char *argv[])
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{
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int gpio, value, ret;
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if (argc < 3)
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return COMMAND_ERROR_USAGE;
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gpio = simple_strtoul(argv[1], NULL, 0);
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value = simple_strtoul(argv[2], NULL, 0);
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ret = gpio_direction_output(gpio, value);
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if (ret)
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return 1;
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return 0;
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}
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BAREBOX_CMD_START(gpio_direction_output)
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.cmd = do_gpio_direction_output,
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BAREBOX_CMD_DESC("set direction of a GPIO pin to output")
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BAREBOX_CMD_OPTS("GPIO VALUE")
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BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
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BAREBOX_CMD_END
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