87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/* cc2520_frdm_k64f.c - FRDK K64F setup for cc2520 */
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel.h>
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#include <device.h>
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#include <init.h>
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#include <pinmux.h>
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#include <pinmux/pinmux.h>
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#include <fsl_port.h>
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#include <ieee802154/cc2520.h>
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#include <gpio.h>
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#define CC2520_GPIO_DEV_NAME CONFIG_GPIO_MCUX_PORTC_NAME
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#define CC2520_GPIO_VREG_EN 12 /* PTC12 */
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#define CC2520_GPIO_RESET 3 /* PTC3 */
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#define CC2520_GPIO_FIFO 2 /* PTC2 */
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#define CC2520_GPIO_CCA 17 /* PTC17 */
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#define CC2520_GPIO_SFD 16 /* PTC16 */
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#define CC2520_GPIO_FIFOP 4 /* PTC4 */
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static struct cc2520_gpio_configuration cc2520_gpios[CC2520_GPIO_IDX_MAX] = {
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{ .dev = NULL, .pin = CC2520_GPIO_VREG_EN, },
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{ .dev = NULL, .pin = CC2520_GPIO_RESET, },
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{ .dev = NULL, .pin = CC2520_GPIO_FIFO, },
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{ .dev = NULL, .pin = CC2520_GPIO_CCA, },
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{ .dev = NULL, .pin = CC2520_GPIO_SFD, },
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{ .dev = NULL, .pin = CC2520_GPIO_FIFOP, },
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};
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/* CONFIG_PINMUX_INIT_PRIORITY + 1 ! */
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#define CC2520_PINMUX_PRIORITY 46
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struct cc2520_gpio_configuration *cc2520_configure_gpios(void)
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{
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struct device *gpio;
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int i;
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gpio = device_get_binding(CC2520_GPIO_DEV_NAME);
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if (!gpio) {
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return NULL;
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}
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for (i = 0; i < CC2520_GPIO_IDX_MAX; i++) {
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int flags;
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if (i >= 0 && i < CC2520_GPIO_IDX_FIFO) {
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flags = GPIO_DIR_OUT;
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} else if (i < CC2520_GPIO_IDX_SFD) {
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flags = GPIO_DIR_IN;
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} else {
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flags = (GPIO_DIR_IN | GPIO_INT | GPIO_INT_EDGE |
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GPIO_INT_ACTIVE_HIGH | GPIO_INT_DEBOUNCE);
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}
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gpio_pin_configure(gpio, cc2520_gpios[i].pin, flags);
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cc2520_gpios[i].dev = gpio;
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}
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return cc2520_gpios;
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}
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static int fdrm_k64f_cc2520_pinmux_setup(struct device *dev)
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{
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ARG_UNUSED(dev);
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struct device *portc =
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device_get_binding(CONFIG_PINMUX_MCUX_PORTC_NAME);
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pinmux_pin_set(portc, 2, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 3, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 4, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 12, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 16, PORT_PCR_MUX(kPORT_MuxAsGpio));
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pinmux_pin_set(portc, 17, PORT_PCR_MUX(kPORT_MuxAsGpio));
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return 0;
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}
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SYS_INIT(fdrm_k64f_cc2520_pinmux_setup, POST_KERNEL, CC2520_PINMUX_PRIORITY);
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