zephyr/drivers/pinmux/pinmux_mcux_lpc.c

121 lines
2.6 KiB
C

/*
* Copyright (c) 2017-2020, NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <errno.h>
#include <device.h>
#include <drivers/pinmux.h>
#include <fsl_common.h>
#include <fsl_clock.h>
#include <fsl_device_registers.h>
#define PORT0_IDX 0u
#define PORT1_IDX 1u
struct pinmux_mcux_lpc_config {
clock_ip_name_t clock_ip_name;
#ifdef IOPCTL
IOPCTL_Type *base;
#else
IOCON_Type *base;
#endif
uint32_t port_no;
};
static int pinmux_mcux_lpc_set(struct device *dev, uint32_t pin, uint32_t func)
{
const struct pinmux_mcux_lpc_config *config = dev->config_info;
#ifdef IOPCTL
IOPCTL_Type *base = config->base;
#else
IOCON_Type *base = config->base;
#endif
uint32_t port = config->port_no;
base->PIO[port][pin] = func;
return 0;
}
static int pinmux_mcux_lpc_get(struct device *dev, uint32_t pin, uint32_t *func)
{
const struct pinmux_mcux_lpc_config *config = dev->config_info;
#ifdef IOPCTL
IOPCTL_Type *base = config->base;
#else
IOCON_Type *base = config->base;
#endif
uint32_t port = config->port_no;
*func = base->PIO[port][pin];
return 0;
}
static int pinmux_mcux_lpc_pullup(struct device *dev, uint32_t pin, uint8_t func)
{
return -ENOTSUP;
}
static int pinmux_mcux_lpc_input(struct device *dev, uint32_t pin, uint8_t func)
{
return -ENOTSUP;
}
static int pinmux_mcux_lpc_init(struct device *dev)
{
#ifndef IOPCTL
const struct pinmux_mcux_lpc_config *config = dev->config_info;
CLOCK_EnableClock(config->clock_ip_name);
#endif
return 0;
}
static const struct pinmux_driver_api pinmux_mcux_driver_api = {
.set = pinmux_mcux_lpc_set,
.get = pinmux_mcux_lpc_get,
.pullup = pinmux_mcux_lpc_pullup,
.input = pinmux_mcux_lpc_input,
};
#ifdef CONFIG_PINMUX_MCUX_LPC_PORT0
static const struct pinmux_mcux_lpc_config pinmux_mcux_lpc_port0_config = {
#ifdef IOPCTL
.base = IOPCTL,
#else
.base = IOCON,
.clock_ip_name = kCLOCK_Iocon,
#endif
.port_no = PORT0_IDX,
};
DEVICE_AND_API_INIT(pinmux_port0, CONFIG_PINMUX_MCUX_LPC_PORT0_NAME,
&pinmux_mcux_lpc_init,
NULL, &pinmux_mcux_lpc_port0_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_mcux_driver_api);
#endif /* CONFIG_PINMUX_MCUX_LPC_PORT0 */
#ifdef CONFIG_PINMUX_MCUX_LPC_PORT1
static const struct pinmux_mcux_lpc_config pinmux_mcux_lpc_port1_config = {
#ifdef IOPCTL
.base = IOPCTL,
#else
.base = IOCON,
.clock_ip_name = kCLOCK_Iocon,
#endif
.port_no = PORT1_IDX,
};
DEVICE_AND_API_INIT(pinmux_port1, CONFIG_PINMUX_MCUX_LPC_PORT1_NAME,
&pinmux_mcux_lpc_init,
NULL, &pinmux_mcux_lpc_port1_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_mcux_driver_api);
#endif /* CONFIG_PINMUX_MCUX_LPC_PORT1 */