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rt-thread/bsp/msp432e401y-LaunchPad/libraries/Drivers/drv_gpio.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-07-15 yby the first version
*/
#include "drv_gpio.h"
#ifdef RT_USING_PIN
#define _MSP432_PIN(index, gpioport, gpio_index) \
{ \
index, GPIO_PORT##gpioport##_BASE, GPIO_PIN_##gpio_index \
}
static const struct pin_index _msp432_pins[] =
{
/* GPIOA 0~7 */
_MSP432_PIN(0, A, 0),
_MSP432_PIN(1, A, 1),
_MSP432_PIN(2, A, 2),
_MSP432_PIN(3, A, 3),
_MSP432_PIN(4, A, 4),
_MSP432_PIN(5, A, 5),
_MSP432_PIN(6, A, 6),
_MSP432_PIN(7, A, 7),
/* GPIOB 0~5 */
_MSP432_PIN(8, B, 0),
_MSP432_PIN(9, B, 1),
_MSP432_PIN(10, B, 2),
_MSP432_PIN(11, B, 3),
_MSP432_PIN(12, B, 4),
_MSP432_PIN(13, B, 5),
/* GPIOC 0~7 */
_MSP432_PIN(14, C, 0),
_MSP432_PIN(15, C, 1),
_MSP432_PIN(16, C, 2),
_MSP432_PIN(17, C, 3),
_MSP432_PIN(18, C, 4),
_MSP432_PIN(19, C, 5),
_MSP432_PIN(20, C, 6),
_MSP432_PIN(21, C, 7),
/* GPIOD 0~7 */
_MSP432_PIN(22, D, 0),
_MSP432_PIN(23, D, 1),
_MSP432_PIN(24, D, 2),
_MSP432_PIN(25, D, 3),
_MSP432_PIN(26, D, 4),
_MSP432_PIN(27, D, 5),
_MSP432_PIN(28, D, 6),
_MSP432_PIN(29, D, 7),
/* GPIOE 0~5 */
_MSP432_PIN(30, E, 0),
_MSP432_PIN(31, E, 1),
_MSP432_PIN(32, E, 2),
_MSP432_PIN(33, E, 3),
_MSP432_PIN(34, E, 4),
_MSP432_PIN(35, E, 5),
/* GPIOF 0~4 */
_MSP432_PIN(36, F, 0),
_MSP432_PIN(37, F, 1),
_MSP432_PIN(38, F, 2),
_MSP432_PIN(39, F, 3),
_MSP432_PIN(40, F, 4),
/* GPIOG 0~1 */
_MSP432_PIN(41, G, 0),
_MSP432_PIN(42, G, 1),
/* GPIOH 0~3 */
_MSP432_PIN(43, H, 0),
_MSP432_PIN(44, H, 1),
_MSP432_PIN(45, H, 0),
_MSP432_PIN(46, H, 1),
/* GPIOJ 0~1 */
_MSP432_PIN(47, J, 0),
_MSP432_PIN(48, J, 1),
/* GPIOK 0~7 */
_MSP432_PIN(49, K, 0),
_MSP432_PIN(50, K, 1),
_MSP432_PIN(51, K, 2),
_MSP432_PIN(52, K, 3),
_MSP432_PIN(53, K, 4),
_MSP432_PIN(54, K, 5),
_MSP432_PIN(55, K, 6),
_MSP432_PIN(56, K, 7),
/* GPIOL 0~7 */
_MSP432_PIN(57, L, 0),
_MSP432_PIN(58, L, 1),
_MSP432_PIN(59, L, 2),
_MSP432_PIN(60, L, 3),
_MSP432_PIN(61, L, 4),
_MSP432_PIN(62, L, 5),
_MSP432_PIN(63, L, 6),
_MSP432_PIN(64, L, 7),
/* GPIOM 0~7 */
_MSP432_PIN(65, M, 0),
_MSP432_PIN(66, M, 1),
_MSP432_PIN(67, M, 2),
_MSP432_PIN(68, M, 3),
_MSP432_PIN(69, M, 4),
_MSP432_PIN(70, M, 5),
_MSP432_PIN(71, M, 6),
_MSP432_PIN(72, M, 7),
/* GPION 0~5 */
_MSP432_PIN(73, N, 0),
_MSP432_PIN(74, N, 1),
_MSP432_PIN(75, N, 2),
_MSP432_PIN(76, N, 3),
_MSP432_PIN(77, N, 4),
_MSP432_PIN(78, N, 5),
/* GPIOP 0~5 */
_MSP432_PIN(79, P, 0),
_MSP432_PIN(80, P, 1),
_MSP432_PIN(81, P, 2),
_MSP432_PIN(82, P, 3),
_MSP432_PIN(83, P, 4),
_MSP432_PIN(84, P, 5),
/* GPIOQ 0~4 */
_MSP432_PIN(85, Q, 0),
_MSP432_PIN(86, Q, 1),
_MSP432_PIN(87, Q, 2),
_MSP432_PIN(88, Q, 3),
_MSP432_PIN(89, Q, 4)
};
#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
static const struct pin_index *_get_pin(rt_base_t pin)
{
const struct pin_index *index = RT_NULL;
if (pin < ITEM_NUM(_msp432_pins))
{
index = &_msp432_pins[pin];
}
return index;
}
static rt_base_t msp432_pin_get(const char *name)
{
rt_base_t pin = -1;
if ((name[0] == 'P') || (name[2] == '.'))
{
if (name[1] == 'A')
{
pin = name[3] - '0';
}
else if (name[1] == 'B')
{
pin = 8 + name[3] - '0';
}
else if (name[1] == 'C')
{
pin = 14 + name[3] - '0';
}
else if (name[1] == 'D')
{
pin = 22 + name[3] - '0';
}
else if (name[1] == 'E')
{
pin = 30 + name[3] - '0';
}
else if (name[1] == 'F')
{
pin = 36 + name[3] - '0';
}
else if (name[1] == 'G')
{
pin = 41 + name[3] - '0';
}
else if (name[1] == 'H')
{
pin = 43 + name[3] - '0';
}
else if (name[1] == 'J')
{
pin = 47 + name[3] - '0';
}
else if (name[1] == 'K')
{
pin = 49 + name[3] - '0';
}
else if (name[1] == 'L')
{
pin = 57 + name[3] - '0';
}
else if (name[1] == 'M')
{
pin = 65 + name[3] - '0';
}
else if (name[1] == 'N')
{
pin = 73 + name[3] - '0';
}
else if (name[1] == 'P')
{
pin = 79 + name[3] - '0';
}
else if (name[1] == 'Q')
{
pin = 85 + name[3] - '0';
}
else {}
}
return pin;
}
static void msp432_pin_mode(struct rt_device *device, rt_base_t pin, rt_uint8_t mode)
{
const struct pin_index *index = RT_NULL;
index = _get_pin(pin);
if (index != RT_NULL)
{
if (mode == PIN_MODE_INPUT)
{
GPIOPinTypeGPIOInput(index->gpioBaseAddress, index->pin);
}
else if (mode == PIN_MODE_OUTPUT)
{
GPIOPinTypeGPIOOutput(index->gpioBaseAddress, index->pin);
}
else if (mode == PIN_MODE_INPUT_PULLUP)
{
GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
}
else if (mode == PIN_MODE_INPUT_PULLDOWN)
{
GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
}
else if (mode == PIN_MODE_OUTPUT_OD)
{
GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_OD);
GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_OUT);
}
else {}
}
}
static void msp432_pin_write(struct rt_device *device, rt_base_t pin, rt_uint8_t value)
{
const struct pin_index *index = RT_NULL;
index = _get_pin(pin);
if (index != RT_NULL)
{
if (value == PIN_HIGH)
{
GPIOPinWrite(index->gpioBaseAddress, index->pin, index->pin);
}
else
{
GPIOPinWrite(index->gpioBaseAddress, index->pin, 0);
}
}
}
static rt_int8_t msp432_pin_read(struct rt_device *device, rt_base_t pin)
{
const struct pin_index *index = RT_NULL;
rt_int8_t value = -1;
index = _get_pin(pin);
if (index != RT_NULL)
{
value = (rt_int8_t)GPIOPinRead(index->gpioBaseAddress, index->pin);
}
return value;
}
static rt_err_t msp432_pin_attach_irq(struct rt_device *device, rt_base_t pin,
rt_uint8_t mode, void (*hdr)(void *args), void *args)
{
/* this is interface for pin_irq, reserved for update. */
return RT_EOK;
}
static rt_err_t msp432_pin_dettach_irq(struct rt_device *device, rt_base_t pin)
{
/* this is interface for pin_irq, reserved for update. */
return RT_EOK;
}
static rt_err_t msp432_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint8_t enabled)
{
/* this is interface for pin_irq_enable, reserved for update. */
return RT_EOK;
}
const static struct rt_pin_ops _msp432_pin_ops =
{
msp432_pin_mode,
msp432_pin_write,
msp432_pin_read,
msp432_pin_attach_irq,
msp432_pin_dettach_irq,
msp432_pin_irq_enable,
msp432_pin_get,
};
int rt_hw_pin_init(void)
{
int ret = -1;
#if defined(SYSCTL_PERIPH_GPIOA)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
#endif
#if defined(SYSCTL_PERIPH_GPIOB)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
#endif
#if defined(SYSCTL_PERIPH_GPIOC)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
#endif
#if defined(SYSCTL_PERIPH_GPIOD)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
#endif
#if defined(SYSCTL_PERIPH_GPIOE)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
#endif
#if defined(SYSCTL_PERIPH_GPIOF)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
#endif
#if defined(SYSCTL_PERIPH_GPIOG)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
#endif
#if defined(SYSCTL_PERIPH_GPIOH)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);
#endif
#if defined(SYSCTL_PERIPH_GPIOJ)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOJ);
#endif
#if defined(SYSCTL_PERIPH_GPIOK)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);
#endif
#if defined(SYSCTL_PERIPH_GPIOL)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL);
#endif
#if defined(SYSCTL_PERIPH_GPIOM)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOM);
#endif
#if defined(SYSCTL_PERIPH_GPION)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
#endif
#if defined(SYSCTL_PERIPH_GPIOP)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOP);
#endif
#if defined(SYSCTL_PERIPH_GPIOQ)
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOQ);
#endif
ret = rt_device_pin_register("pin", &_msp432_pin_ops, RT_NULL);
return ret;
}
#endif /*RT_USING_PIN*/
/************************** end of file ******************/
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