216 lines
7.6 KiB
C
216 lines
7.6 KiB
C
/*
|
|
* Copyright (c) 2018, Texas Instruments Incorporated - http://www.ti.com/
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/**
|
|
* \addtogroup cc13xx-cc26xx-gpio-hal
|
|
* @{
|
|
*
|
|
* \file
|
|
* Implementation of the GPIO HAL module for CC13xx/CC26xx. The GPIO
|
|
* HAL module is implemented by using the PINCC26XX module, except
|
|
* for multi-dio functions which use the GPIO driverlib module.
|
|
* \author
|
|
* Edvard Pettersen <e.pettersen@ti.com>
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#include "contiki.h"
|
|
#include "dev/gpio-hal.h"
|
|
/*---------------------------------------------------------------------------*/
|
|
#include <ti/devices/DeviceFamily.h>
|
|
#include DeviceFamily_constructPath(driverlib/gpio.h)
|
|
|
|
#include <ti/drivers/PIN.h>
|
|
#include <ti/drivers/pin/PINCC26XX.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
#include <stdint.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
static PIN_Config pin_config[] = { PIN_TERMINATE };
|
|
static PIN_State pin_state;
|
|
static PIN_Handle pin_handle;
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
from_hal_cfg(gpio_hal_pin_cfg_t cfg, PIN_Config *pin_cfg, PIN_Config *pin_mask)
|
|
{
|
|
/* Pulling config */
|
|
*pin_mask |= PIN_BM_PULLING;
|
|
|
|
switch(cfg & GPIO_HAL_PIN_CFG_PULL_MASK) {
|
|
default: /* Default to no pullup/pulldown */
|
|
case GPIO_HAL_PIN_CFG_PULL_NONE: *pin_cfg |= PIN_NOPULL; break;
|
|
case GPIO_HAL_PIN_CFG_PULL_UP: *pin_cfg |= PIN_PULLUP; break;
|
|
case GPIO_HAL_PIN_CFG_PULL_DOWN: *pin_cfg |= PIN_PULLDOWN; break;
|
|
}
|
|
|
|
/* Hysteresis config */
|
|
*pin_mask |= PIN_BM_HYSTERESIS;
|
|
|
|
if(cfg & GPIO_HAL_PIN_CFG_HYSTERESIS) {
|
|
*pin_cfg |= PIN_HYSTERESIS;
|
|
}
|
|
|
|
/* Interrupt config */
|
|
*pin_mask |= PIN_BM_IRQ;
|
|
|
|
if((cfg & GPIO_HAL_PIN_CFG_INT_MASK) == GPIO_HAL_PIN_CFG_INT_ENABLE) {
|
|
/* Interrupt edge config */
|
|
switch(cfg & GPIO_HAL_PIN_CFG_EDGE_BOTH) {
|
|
case GPIO_HAL_PIN_CFG_EDGE_NONE: *pin_cfg |= PIN_IRQ_DIS; break;
|
|
case GPIO_HAL_PIN_CFG_EDGE_FALLING: *pin_cfg |= PIN_IRQ_NEGEDGE; break;
|
|
case GPIO_HAL_PIN_CFG_EDGE_RISING: *pin_cfg |= PIN_IRQ_POSEDGE; break;
|
|
case GPIO_HAL_PIN_CFG_EDGE_BOTH: *pin_cfg |= PIN_IRQ_BOTHEDGES; break;
|
|
}
|
|
} else {
|
|
*pin_cfg |= PIN_IRQ_DIS;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
to_hal_cfg(PIN_Config pin_cfg, gpio_hal_pin_cfg_t *cfg)
|
|
{
|
|
/* Input config */
|
|
if(pin_cfg & PIN_BM_INPUT_MODE) {
|
|
/* Hysteresis config */
|
|
if((pin_cfg & PIN_BM_HYSTERESIS) == PIN_BM_HYSTERESIS) {
|
|
*cfg |= GPIO_HAL_PIN_CFG_HYSTERESIS;
|
|
}
|
|
|
|
/* Pulling config */
|
|
switch(pin_cfg & PIN_BM_PULLING) {
|
|
case PIN_NOPULL: *cfg |= GPIO_HAL_PIN_CFG_PULL_NONE; break;
|
|
case PIN_PULLUP: *cfg |= GPIO_HAL_PIN_CFG_PULL_UP; break;
|
|
case PIN_PULLDOWN: *cfg |= GPIO_HAL_PIN_CFG_PULL_DOWN; break;
|
|
}
|
|
}
|
|
|
|
/* Interrupt config */
|
|
if(pin_cfg & PIN_BM_IRQ) {
|
|
/* Interrupt edge config */
|
|
switch(pin_cfg & PIN_BM_IRQ) {
|
|
case PIN_IRQ_DIS: *cfg |= GPIO_HAL_PIN_CFG_EDGE_NONE;
|
|
*cfg |= GPIO_HAL_PIN_CFG_INT_DISABLE;
|
|
break;
|
|
case PIN_IRQ_NEGEDGE: *cfg |= GPIO_HAL_PIN_CFG_EDGE_FALLING;
|
|
*cfg |= GPIO_HAL_PIN_CFG_INT_ENABLE;
|
|
break;
|
|
case PIN_IRQ_POSEDGE: *cfg |= GPIO_HAL_PIN_CFG_EDGE_RISING;
|
|
*cfg |= GPIO_HAL_PIN_CFG_INT_ENABLE;
|
|
break;
|
|
case PIN_IRQ_BOTHEDGES: *cfg |= GPIO_HAL_PIN_CFG_EDGE_BOTH;
|
|
*cfg |= GPIO_HAL_PIN_CFG_INT_ENABLE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
gpio_int_cb(PIN_Handle handle, PIN_Id pin_id)
|
|
{
|
|
/* Unused args */
|
|
(void)handle;
|
|
|
|
/* Notify the GPIO HAL driver */
|
|
gpio_hal_event_handler(gpio_hal_pin_to_mask(pin_id));
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
gpio_hal_arch_init(void)
|
|
{
|
|
/* No error checking */
|
|
pin_handle = PIN_open(&pin_state, pin_config);
|
|
PIN_registerIntCb(pin_handle, gpio_int_cb);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
gpio_hal_arch_interrupt_enable(gpio_hal_pin_t pin)
|
|
{
|
|
PIN_Config pin_cfg;
|
|
PIN_Config irq_cfg;
|
|
|
|
pin_cfg = PIN_getConfig(pin);
|
|
PIN_add(pin_handle, pin_cfg);
|
|
|
|
irq_cfg = pin_cfg & PIN_BM_IRQ;
|
|
PIN_setInterrupt(pin_handle, pin | irq_cfg);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
gpio_hal_arch_interrupt_disable(gpio_hal_pin_t pin)
|
|
{
|
|
PIN_add(pin_handle, PIN_getConfig(pin));
|
|
|
|
PIN_setInterrupt(pin_handle, pin | PIN_IRQ_DIS);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
gpio_hal_arch_pin_cfg_set(gpio_hal_pin_t pin, gpio_hal_pin_cfg_t cfg)
|
|
{
|
|
PIN_add(pin_handle, PIN_getConfig(pin));
|
|
|
|
/* Clear settings that we are about to change, keep everything else. */
|
|
PIN_Config pin_cfg = 0;
|
|
PIN_Config pin_mask = 0;
|
|
|
|
from_hal_cfg(cfg, &pin_cfg, &pin_mask);
|
|
|
|
PIN_setConfig(pin_handle, pin_mask, pin | pin_cfg);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
gpio_hal_pin_cfg_t
|
|
gpio_hal_arch_pin_cfg_get(gpio_hal_pin_t pin)
|
|
{
|
|
PIN_Config pin_cfg = PIN_getConfig(pin);
|
|
gpio_hal_pin_cfg_t cfg = 0;
|
|
|
|
to_hal_cfg(pin_cfg, &cfg);
|
|
|
|
return cfg;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
gpio_hal_pin_mask_t
|
|
gpio_hal_arch_read_pins(gpio_hal_pin_mask_t pins)
|
|
{
|
|
/* For pins configured as output we need to read DOUT31_0 */
|
|
gpio_hal_pin_mask_t oe_pins = GPIO_getOutputEnableMultiDio(pins);
|
|
|
|
pins &= ~oe_pins;
|
|
|
|
return (HWREG(GPIO_BASE + GPIO_O_DOUT31_0) & oe_pins) |
|
|
GPIO_readMultiDio(pins);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
uint8_t
|
|
gpio_hal_arch_read_pin(gpio_hal_pin_t pin)
|
|
{
|
|
return (GPIO_getOutputEnableDio(pin))
|
|
? PINCC26XX_getOutputValue(pin)
|
|
: PINCC26XX_getInputValue(pin);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|