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Merge pull request #6182 from haukepetersen/opt_cc2538_gpio

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cpu/cc2538: reworked GPIO driver
This commit is contained in:
Francisco Acosta 2017-01-11 17:21:49 +01:00 committed by GitHub
commit cfa788a823
20 changed files with 196 additions and 1086 deletions
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22
boards/cc2538dk/board.c
View File

@ -1,5 +1,6 @@
/*
* Copyright (C) 2014 Loci Controls Inc.
* 2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
@ -14,6 +15,9 @@
* @brief Board specific implementations for the CC2538DK board
*
* @author Ian Martin <ian@locicontrols.com>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
@ -21,14 +25,6 @@
#include "board.h"
#include "cpu.h"
static void led_init_helper(int gpio_num) {
gpio_software_control(gpio_num);
gpio_dir_output(gpio_num);
/* Enable output without any internal pull resistors: */
IOC_PXX_OVER[gpio_num] = IOC_OVERRIDE_OE;
}
/**
* @brief Initialize the SmartRF06 board
*/
@ -38,10 +34,8 @@ void board_init(void)
cpu_init();
/* initialize the boards LEDs */
led_init_helper(LED0_GPIO);
led_init_helper(LED1_GPIO);
led_init_helper(LED2_GPIO);
led_init_helper(LED3_GPIO);
gpio_init(LED0_PIN, GPIO_OUT);
gpio_init(LED1_PIN, GPIO_OUT);
gpio_init(LED2_PIN, GPIO_OUT);
gpio_init(LED3_PIN, GPIO_OUT);
}
/** @} */

33
boards/cc2538dk/include/board.h
View File

@ -36,26 +36,27 @@ extern "C" {
#define LED2_PIN GPIO_PIN(2, 2)
#define LED3_PIN GPIO_PIN(2, 3)
#define LED0_GPIO GPIO_PC0 /**< red LED */
#define LED1_GPIO GPIO_PC1 /**< yellow LED */
#define LED2_GPIO GPIO_PC2 /**< green LED */
#define LED3_GPIO GPIO_PC3 /**< orange LED */
#define LED_PORT GPIO_C
#define LED0_BIT (1 << 0) /**< red LED */
#define LED1_BIT (1 << 1) /**< yellow LED */
#define LED2_BIT (1 << 2) /**< green LED */
#define LED3_BIT (1 << 3) /**< orange LED */
#define LED0_ON cc2538_gpio_set(LED0_GPIO)
#define LED0_OFF cc2538_gpio_clear(LED0_GPIO)
#define LED0_TOGGLE cc2538_gpio_toggle(LED0_GPIO)
#define LED0_ON (LED_PORT->DATA |= LED0_BIT)
#define LED0_OFF (LED_PORT->DATA &= ~LED0_BIT)
#define LED0_TOGGLE (LED_PORT->DATA ^= LED0_BIT)
#define LED1_ON cc2538_gpio_set(LED1_GPIO)
#define LED1_OFF cc2538_gpio_clear(LED1_GPIO)
#define LED1_TOGGLE cc2538_gpio_toggle(LED1_GPIO)
#define LED1_ON (LED_PORT->DATA |= LED1_BIT)
#define LED1_OFF (LED_PORT->DATA &= ~LED1_BIT)
#define LED1_TOGGLE (LED_PORT->DATA ^= LED1_BIT)
#define LED2_ON cc2538_gpio_set(LED2_GPIO)
#define LED2_OFF cc2538_gpio_clear(LED2_GPIO)
#define LED2_TOGGLE cc2538_gpio_toggle(LED2_GPIO)
#define LED2_ON (LED_PORT->DATA |= LED2_BIT)
#define LED2_OFF (LED_PORT->DATA &= ~LED2_BIT)
#define LED2_TOGGLE (LED_PORT->DATA ^= LED2_BIT)
#define LED3_ON cc2538_gpio_set(LED3_GPIO)
#define LED3_OFF cc2538_gpio_clear(LED3_GPIO)
#define LED3_TOGGLE cc2538_gpio_toggle(LED3_GPIO)
#define LED3_ON (LED_PORT->DATA |= LED3_BIT)
#define LED3_OFF (LED_PORT->DATA &= ~LED3_BIT)
#define LED3_TOGGLE (LED_PORT->DATA ^= LED3_BIT)
/** @} */
/**

77
boards/cc2538dk/include/periph_conf.h
View File

@ -119,7 +119,6 @@ static const i2c_conf_t i2c_config[I2C_NUMOF] = {
#define SPI_NUMOF 1
#define SPI_0_EN 1
#ifdef HAVE_PERIPH_SPI_CONF_T
static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
{
.dev = SSI0,
@ -129,82 +128,6 @@ static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
.cs_pin = GPIO_PD0,
},
};
#endif
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_IRQ_PRIO 1
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_12_EN 1
#define GPIO_13_EN 1
#define GPIO_14_EN 1
#define GPIO_15_EN 1
#define GPIO_16_EN 1
#define GPIO_17_EN 1
#define GPIO_18_EN 1
#define GPIO_19_EN 1
#define GPIO_20_EN 1
#define GPIO_21_EN 1
#define GPIO_22_EN 1
#define GPIO_23_EN 1
#define GPIO_24_EN 1
#define GPIO_25_EN 1
#define GPIO_26_EN 1
#define GPIO_27_EN 1
#define GPIO_28_EN 1
#define GPIO_29_EN 1
#define GPIO_30_EN 1
#define GPIO_31_EN 1
/* GPIO channel configuration */
#define GPIO_0_PIN GPIO_PA0
#define GPIO_1_PIN GPIO_PA1
#define GPIO_2_PIN GPIO_PA2
#define GPIO_3_PIN GPIO_PA3
#define GPIO_4_PIN GPIO_PA4
#define GPIO_5_PIN GPIO_PA5
#define GPIO_6_PIN GPIO_PA6
#define GPIO_7_PIN GPIO_PA7
#define GPIO_8_PIN GPIO_PB0
#define GPIO_9_PIN GPIO_PB1
#define GPIO_10_PIN GPIO_PB2
#define GPIO_11_PIN GPIO_PB3
#define GPIO_12_PIN GPIO_PB4
#define GPIO_13_PIN GPIO_PB5
#define GPIO_14_PIN GPIO_PB6
#define GPIO_15_PIN GPIO_PB7
#define GPIO_16_PIN GPIO_PC0
#define GPIO_17_PIN GPIO_PC1
#define GPIO_18_PIN GPIO_PC2
#define GPIO_19_PIN GPIO_PC3
#define GPIO_20_PIN GPIO_PC4
#define GPIO_21_PIN GPIO_PC5
#define GPIO_22_PIN GPIO_PC6
#define GPIO_23_PIN GPIO_PC7
#define GPIO_24_PIN GPIO_PD0
#define GPIO_25_PIN GPIO_PD1
#define GPIO_26_PIN GPIO_PD2
#define GPIO_27_PIN GPIO_PD3
#define GPIO_28_PIN GPIO_PD4
#define GPIO_29_PIN GPIO_PD5
#define GPIO_30_PIN GPIO_PD6
#define GPIO_31_PIN GPIO_PD7
/** @} */
/**

75
boards/openmote-cc2538/include/periph_conf.h
View File

@ -120,81 +120,6 @@ static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
.cs_pin = GPIO_PA3,
},
};
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_IRQ_PRIO 1
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_12_EN 1
#define GPIO_13_EN 1
#define GPIO_14_EN 1
#define GPIO_15_EN 1
#define GPIO_16_EN 1
#define GPIO_17_EN 1
#define GPIO_18_EN 1
#define GPIO_19_EN 1
#define GPIO_20_EN 1
#define GPIO_21_EN 1
#define GPIO_22_EN 1
#define GPIO_23_EN 1
#define GPIO_24_EN 1
#define GPIO_25_EN 1
#define GPIO_26_EN 1
#define GPIO_27_EN 1
#define GPIO_28_EN 1
#define GPIO_29_EN 1
#define GPIO_30_EN 1
#define GPIO_31_EN 1
/* GPIO channel configuration */
#define GPIO_0_PIN GPIO_PA0
#define GPIO_1_PIN GPIO_PA1
#define GPIO_2_PIN GPIO_PA2
#define GPIO_3_PIN GPIO_PA3
#define GPIO_4_PIN GPIO_PA4
#define GPIO_5_PIN GPIO_PA5
#define GPIO_6_PIN GPIO_PA6
#define GPIO_7_PIN GPIO_PA7
#define GPIO_8_PIN GPIO_PB0
#define GPIO_9_PIN GPIO_PB1
#define GPIO_10_PIN GPIO_PB2
#define GPIO_11_PIN GPIO_PB3
#define GPIO_12_PIN GPIO_PB4
#define GPIO_13_PIN GPIO_PB5
#define GPIO_14_PIN GPIO_PB6
#define GPIO_15_PIN GPIO_PB7
#define GPIO_16_PIN GPIO_PC0
#define GPIO_17_PIN GPIO_PC1
#define GPIO_18_PIN GPIO_PC2
#define GPIO_19_PIN GPIO_PC3
#define GPIO_20_PIN GPIO_PC4
#define GPIO_21_PIN GPIO_PC5
#define GPIO_22_PIN GPIO_PC6
#define GPIO_23_PIN GPIO_PC7
#define GPIO_24_PIN GPIO_PD0
#define GPIO_25_PIN GPIO_PD1
#define GPIO_26_PIN GPIO_PD2
#define GPIO_27_PIN GPIO_PD3
#define GPIO_28_PIN GPIO_PD4
#define GPIO_29_PIN GPIO_PD5
#define GPIO_30_PIN GPIO_PD6
#define GPIO_31_PIN GPIO_PD7
/** @} */
/**

2
boards/remote-pa/board.c
View File

@ -60,7 +60,7 @@ static void rf_switch_init(void)
RF_SWITCH_PORT->DIR |= (1 << RF_SWITCH_PIN);
/* configure io-mux for used pins */
IOC->PC_OVER[RF_SWITCH_PIN] = IOC_OVERRIDE_OE;
IOC->OVER[RF_SWITCH_PIN] = IOC_OVERRIDE_OE;
/* Set to default */
RF_SWITCH_INTERNAL;

2
boards/remote-pa/include/board.h
View File

@ -60,7 +60,7 @@
* @name User button pin definition
* @{
*/
#define BUTTON_GPIO GPIO_9_PIN
#define BTN0_PIN GPIO_PIN(0, 3)
/** @} */
/**

2
boards/remote-pa/include/gpio_params.h
View File

@ -48,7 +48,7 @@ static const saul_gpio_params_t saul_gpio_params[] =
},
{
.name = "Button(User)",
.pin = BUTTON_GPIO,
.pin = BTN0_PIN,
.mode = GPIO_IN_PU
},
};

92
boards/remote-pa/include/periph_conf.h
View File

@ -78,7 +78,6 @@ static const i2c_conf_t i2c_config[I2C_NUMOF] = {
#define SPI_0_EN 1
#define SPI_1_EN 1
#ifdef HAVE_PERIPH_SPI_CONF_T
static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
{
.dev = SSI0,
@ -94,97 +93,6 @@ static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
.sck_pin = GPIO_PB5,
},
};
#endif
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_IRQ_PRIO 1
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_12_EN 1
#define GPIO_13_EN 1
#define GPIO_14_EN 1
#define GPIO_15_EN 1
#define GPIO_16_EN 1
#define GPIO_17_EN 1
#define GPIO_18_EN 1
#define GPIO_19_EN 1
#define GPIO_20_EN 1
#define GPIO_21_EN 1
#define GPIO_22_EN 1
#define GPIO_23_EN 1
#define GPIO_24_EN 1
/**
* @brief Port config
*
* These defines configures the port settings
*/
/* GPIO 0 configuration - LED1 Green */
#define GPIO_0_PIN GPIO_PD5
/* GPIO 1 configuration - LED2 Blue */
#define GPIO_1_PIN GPIO_PC3
/* GPIO 2 configuration - LED3 Red */
#define GPIO_2_PIN GPIO_PD2
/* GPIO 3 configuration - UART0 RX */
#define GPIO_3_PIN GPIO_PA0
/* GPIO 4 configuration - UART0 TX */
#define GPIO_4_PIN GPIO_PA1
/* GPIO 5 configuration - UART1 TX */
#define GPIO_5_PIN GPIO_PC5
/* GPIO 6 configuration - UART1 RX */
#define GPIO_6_PIN GPIO_PC6
/* GPIO 7 configuration - UART1 CTS */
#define GPIO_7_PIN GPIO_PC1
/* GPIO 8 configuration - UART RTS */
#define GPIO_8_PIN GPIO_PC2
/* GPIO 9 configuration - User button/Bootloader */
#define GPIO_9_PIN GPIO_PA3
/* GPIO 10 configuration - ADC2 */
#define GPIO_10_PIN GPIO_PA6
/* GPIO 11 configuration - ADC3 */
#define GPIO_11_PIN GPIO_PA7
/* GPIO 12 configuration - SSI0 CC1120 CLK */
#define GPIO_12_PIN GPIO_PD1
/* GPIO 13 configuration - SSI0 CC1120 MOSI */
#define GPIO_13_PIN GPIO_PD0
/* GPIO 14 configuration - SSI0 CC1120 MISO */
#define GPIO_14_PIN GPIO_PC4
/* GPIO 15 configuration - I2C SCL */
#define GPIO_15_PIN GPIO_PB1
/* GPIO 16 configuration - I2C SDA */
#define GPIO_16_PIN GPIO_PB0
/* GPIO 17 configuration - RF SWITCH */
#define GPIO_17_PIN GPIO_PD4
/* GPIO 18 configuration - SSI1 MicroSD CLK */
#define GPIO_18_PIN GPIO_PB5
/* GPIO 19 configuration - SSI1 MicroSD MOSI */
#define GPIO_19_PIN GPIO_PC7
/* GPIO 20 configuration - SSI1 MicroSD MISO */
#define GPIO_20_PIN GPIO_PA4
/* GPIO 21 configuration - CC1120 CSn */
#define GPIO_21_PIN GPIO_PD3
/* GPIO 22 configuration - CC1120 GDO0 */
#define GPIO_22_PIN GPIO_PB4
/* GPIO 23 configuration - CC1120 GDO2 */
#define GPIO_23_PIN GPIO_PB3
/* GPIO 24 configuration - CC1120 Reset */
#define GPIO_24_PIN GPIO_PB2
/** @} */
#ifdef __cplusplus

3
boards/remote-reva/include/board.h
View File

@ -60,8 +60,9 @@
* @name User button pin definition
* @{
*/
#define BUTTON_GPIO GPIO_3_PIN
#define BTN0_PIN GPIO_PIN(0, 3)
/** @} */
/**
* @name RF switch controlled by SW
* @brief Controls which RF interface goes to the RP-SMA external antenna

2
boards/remote-reva/include/gpio_params.h
View File

@ -48,7 +48,7 @@ static const saul_gpio_params_t saul_gpio_params[] =
},
{
.name = "Button(User)",
.pin = BUTTON_GPIO,
.pin = BTN0_PIN,
.mode = GPIO_IN_PU
},
};

108
boards/remote-reva/include/periph_conf.h
View File

@ -78,7 +78,6 @@ static const i2c_conf_t i2c_config[I2C_NUMOF] = {
#define SPI_0_EN 1
#define SPI_1_EN 1
#ifdef HAVE_PERIPH_SPI_CONF_T
static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
{
.dev = SSI0,
@ -95,113 +94,6 @@ static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
.cs_pin = GPIO_PA7,
},
};
#endif
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_IRQ_PRIO 1
/* Enable only up to PD5 as PD6-PD7 are used with the 32KHz XOSC */
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_12_EN 1
#define GPIO_13_EN 1
#define GPIO_14_EN 1
#define GPIO_15_EN 1
#define GPIO_16_EN 1
#define GPIO_17_EN 1
#define GPIO_18_EN 1
#define GPIO_19_EN 1
#define GPIO_20_EN 1
#define GPIO_21_EN 1
#define GPIO_22_EN 1
#define GPIO_23_EN 1
#define GPIO_24_EN 1
#define GPIO_25_EN 1
#define GPIO_26_EN 1
#define GPIO_27_EN 1
#define GPIO_28_EN 1
#define GPIO_29_EN 1
/**
* @brief Port config
*
* These defines configures the port settings
*/
/* UART0 RX */
#define GPIO_0_PIN GPIO_PA0
/* UART0 TX */
#define GPIO_1_PIN GPIO_PA1
/* ADC3 */
#define GPIO_2_PIN GPIO_PA2
/* User button/Bootloader */
#define GPIO_3_PIN GPIO_PA3
/* ADC2 */
#define GPIO_4_PIN GPIO_PA4
/* ADC1 */
#define GPIO_5_PIN GPIO_PA5
/* SEL MicroSD */
#define GPIO_6_PIN GPIO_PA6
/* CSn MicroSD (shared with ADC extRef) */
#define GPIO_7_PIN GPIO_PA7
/* CC1200 GDO2 */
#define GPIO_8_PIN GPIO_PB0
/* SSI0 CC1200 MOSI */
#define GPIO_9_PIN GPIO_PB1
/* SSI0 CC1200 CLK */
#define GPIO_10_PIN GPIO_PB2
/* SSI0 CC1200 MISO */
#define GPIO_11_PIN GPIO_PB3
/* CC1200 GDO0 */
#define GPIO_12_PIN GPIO_PB4
/* CC1200 CSn */
#define GPIO_13_PIN GPIO_PB5
/* JTAG TDI */
#define GPIO_14_PIN GPIO_PB6
/* JTAG TDO */
#define GPIO_15_PIN GPIO_PB7
/* UART1 TX */
#define GPIO_16_PIN GPIO_PC0
/* UART1 RX */
#define GPIO_17_PIN GPIO_PC1
/* I2C SDA */
#define GPIO_18_PIN GPIO_PC2
/* I2C SCL */
#define GPIO_19_PIN GPIO_PC3
/* SSI1 MicroSD CLK */
#define GPIO_20_PIN GPIO_PC4
/* SSI1 MicroSD MOSI */
#define GPIO_21_PIN GPIO_PC5
/* SSI1 MicroSD MISO */
#define GPIO_22_PIN GPIO_PC6
/* CC1200 Reset */
#define GPIO_23_PIN GPIO_PC7
/* Power Management (shutdown) */
#define GPIO_24_PIN GPIO_PD0
/* Power Management (done) */
#define GPIO_25_PIN GPIO_PD1
/* RF SWITCH */
#define GPIO_26_PIN GPIO_PD2
/* LED2 Blue/UART1 RTS */
#define GPIO_27_PIN GPIO_PD3
/* LED1 Green/UART1 CTS */
#define GPIO_28_PIN GPIO_PD4
/* LED3 Red */
#define GPIO_29_PIN GPIO_PD5
/** @} */
#ifdef __cplusplus

2
boards/remote-revb/include/board.h
View File

@ -60,7 +60,7 @@
* @name User button pin definition
* @{
*/
#define BUTTON_GPIO GPIO_3_PIN
#define BTN0_PIN GPIO_PIN(0, 3)
/** @} */
/**

2
boards/remote-revb/include/gpio_params.h
View File

@ -48,7 +48,7 @@ static const saul_gpio_params_t saul_gpio_params[] =
},
{
.name = "Button(User)",
.pin = BUTTON_GPIO,
.pin = BTN0_PIN,
.mode = GPIO_IN_PU
},
};

108
boards/remote-revb/include/periph_conf.h
View File

@ -78,7 +78,6 @@ static const i2c_conf_t i2c_config[I2C_NUMOF] = {
#define SPI_0_EN 1
#define SPI_1_EN 1
#ifdef HAVE_PERIPH_SPI_CONF_T
static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
{
.dev = SSI0,
@ -95,113 +94,6 @@ static const periph_spi_conf_t spi_config[SPI_NUMOF] = {
.cs_pin = GPIO_PA7,
},
};
#endif
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_IRQ_PRIO 1
/* Enable only up to PD5 as PD6-PD7 are used with the 32KHz XOSC */
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_12_EN 1
#define GPIO_13_EN 1
#define GPIO_14_EN 1
#define GPIO_15_EN 1
#define GPIO_16_EN 1
#define GPIO_17_EN 1
#define GPIO_18_EN 1
#define GPIO_19_EN 1
#define GPIO_20_EN 1
#define GPIO_21_EN 1
#define GPIO_22_EN 1
#define GPIO_23_EN 1
#define GPIO_24_EN 1
#define GPIO_25_EN 1
#define GPIO_26_EN 1
#define GPIO_27_EN 1
#define GPIO_28_EN 1
#define GPIO_29_EN 1
/**
* @brief Port config
*
* These defines configures the port settings
*/
/* UART0 RX */
#define GPIO_0_PIN GPIO_PA0
/* UART0 TX */
#define GPIO_1_PIN GPIO_PA1
/* ADC3 */
#define GPIO_2_PIN GPIO_PA2
/* User button/Bootloader */
#define GPIO_3_PIN GPIO_PA3
/* ADC2 */
#define GPIO_4_PIN GPIO_PA4
/* ADC1 */
#define GPIO_5_PIN GPIO_PA5
/* SEL MicroSD or AIN6/ADC4 */
#define GPIO_6_PIN GPIO_PA6
/* CSn MicroSD or AIN7/ADC5 */
#define GPIO_7_PIN GPIO_PA7
/* CC1200 GDO2 */
#define GPIO_8_PIN GPIO_PB0
/* SSI0 CC1200 MOSI */
#define GPIO_9_PIN GPIO_PB1
/* SSI0 CC1200 CLK */
#define GPIO_10_PIN GPIO_PB2
/* SSI0 CC1200 MISO */
#define GPIO_11_PIN GPIO_PB3
/* CC1200 GDO0 */
#define GPIO_12_PIN GPIO_PB4
/* CC1200 CSn */
#define GPIO_13_PIN GPIO_PB5
/* JTAG TDI & LED3 */
#define GPIO_14_PIN GPIO_PB6
/* JTAG TDO & LED2 */
#define GPIO_15_PIN GPIO_PB7
/* UART1 TX */
#define GPIO_16_PIN GPIO_PC0
/* UART1 RX */
#define GPIO_17_PIN GPIO_PC1
/* I2C SDA */
#define GPIO_18_PIN GPIO_PC2
/* I2C SCL */
#define GPIO_19_PIN GPIO_PC3
/* SSI1 MicroSD CLK */
#define GPIO_20_PIN GPIO_PC4
/* SSI1 MicroSD MOSI */
#define GPIO_21_PIN GPIO_PC5
/* SSI1 MicroSD MISO */
#define GPIO_22_PIN GPIO_PC6
/* CC1200 Reset */
#define GPIO_23_PIN GPIO_PC7
/* GPIO */
#define GPIO_24_PIN GPIO_PD0
/* Power Management enable */
#define GPIO_25_PIN GPIO_PD1
/* RF SWITCH */
#define GPIO_26_PIN GPIO_PD2
/* RTCC INT1 */
#define GPIO_27_PIN GPIO_PD3
/* LED1 */
#define GPIO_28_PIN GPIO_PD4
/* External WDT */
#define GPIO_29_PIN GPIO_PD5
/** @} */
#ifdef __cplusplus

38
cpu/cc2538/cc2538-gpio.c
View File

@ -1,38 +0,0 @@
/*
* Copyright (C) 2015 Loci Controls Inc.
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @addtogroup cpu_cc2538
* @{
*
* @file cc2538-gpio.c
* @brief cc2538 GPIO controller driver implementation
*
* @author Ian Martin <ian@locicontrols.com>
* @{
*/
#include "cc2538_gpio.h"
void cc2538_gpio_port_init(cc2538_gpio_t* gpio_port) {
/* Disable power-up interrupts */
gpio_port->PI_IEN = 0;
/* Disable normal interrupts */
gpio_port->IE = 0;
/* Clear any pending interrupts */
gpio_port->IC = 0xff;
}
void cc2538_gpio_init(void) {
cc2538_gpio_port_init(GPIO_A);
cc2538_gpio_port_init(GPIO_B);
cc2538_gpio_port_init(GPIO_C);
cc2538_gpio_port_init(GPIO_D);
}

2
cpu/cc2538/cpu.c
View File

@ -47,8 +47,6 @@ void cpu_init(void)
SYS_CTRL->I_MAP = 1;
/* initialize the clock system */
cpu_clock_init();
/* initialize the GPIO controller */
cc2538_gpio_init();
}
/**

28
cpu/cc2538/include/cc2538_gpio.h
View File

@ -122,6 +122,11 @@ enum {
*/
#define gpio_dir_input(gpio_num) ( GPIO_NUM_TO_DEV(gpio_num)->DIR &= ~GPIO_PIN_MASK(GPIO_BIT_NUM(gpio_num)) )
/**
* @brief Read the value of the given pin
*
* @param[in] gpio_num GPIO number (0-31)
*/
#define cc2538_gpio_read(gpio_num) ( (GPIO_NUM_TO_DEV(gpio_num)->DATA >> GPIO_BIT_NUM(gpio_num)) & 1 )
/**
@ -218,14 +223,8 @@ typedef struct {
* @brief IOC port component registers
*/
typedef struct {
cc2538_reg_t PA_SEL[8]; /**< Port A SEL register */
cc2538_reg_t PB_SEL[8]; /**< Port B SEL register */
cc2538_reg_t PC_SEL[8]; /**< Port C SEL register */
cc2538_reg_t PD_SEL[8]; /**< Port D SEL register */
cc2538_reg_t PA_OVER[8]; /**< Port A OVER register */
cc2538_reg_t PB_OVER[8]; /**< Port B OVER register */
cc2538_reg_t PC_OVER[8]; /**< Port C OVER register */
cc2538_reg_t PD_OVER[8]; /**< Port D OVER register */
cc2538_reg_t SEL[32]; /**< Port A to D SEL registers */
cc2538_reg_t OVER[32]; /**< Port A OVER register */
} cc2538_ioc_t;
/**
@ -283,19 +282,6 @@ typedef struct {
#define IOC ((cc2538_ioc_t *)0x400d4000) /**< IOC instance */
/** @} */
/**
* @brief Initialize a GPIO port.
* @details Initializes the port to a default state, disables interrupts and
* clears any pending interrupts.
* @param[in] gpio_port A pointer to the port's instance, e.g. "GPIO_A".
*/
void cc2538_gpio_port_init(cc2538_gpio_t* gpio_port);
/**
* @brief Initialize all four GPIO ports.
*/
void cc2538_gpio_init(void);
#ifdef __cplusplus
} /* end extern "C" */
#endif

3
cpu/cc2538/include/cc2538_gptimer.h
View File

@ -117,6 +117,9 @@ typedef struct {
cc2538_reg_t SYNC; /**< GPTIMER Synchronize */
cc2538_reg_t RESERVED2; /**< Reserved word */
/**
* @brief Interrupt mask control
*/
union {
cc2538_reg_t IMR; /**< GPTIMER Interrupt Mask */
struct {

32
cpu/cc2538/include/periph_cpu.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2015 Freie Universität Berlin
* Copyright (C) 2015-2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
@ -40,14 +40,15 @@ extern "C" {
*/
#define HAVE_GPIO_T
typedef uint32_t gpio_t;
#define GPIO_PIN(port_num, bit_num) GPIO_PXX_TO_NUM(port_num, bit_num)
/** @} */
/**
* @brief Definition of a fitting UNDEF value
* @brief Define a custom GPIO_PIN macro
*
* For the CC2538, we use OR the gpio ports base register address with the
* actual pin number.
*/
#define GPIO_UNDEF (0xffffffff)
#define GPIO_PIN(port, pin) (gpio_t)(((uint32_t)GPIO_A + (port << 12)) | pin)
/**
* @brief declare needed generic SPI functions
@ -57,6 +58,24 @@ typedef uint32_t gpio_t;
#define PERIPH_SPI_NEEDS_TRANSFER_REGS
/** @} */
/**
* @brief Override the default GPIO mode settings
* @{
*/
#define HAVE_GPIO_MODE_T
typedef enum {
GPIO_IN = ((uint8_t)0x00), /**< input, no pull */
GPIO_IN_PD = ((uint8_t)IOC_OVERRIDE_PDE), /**< input, pull-down */
GPIO_IN_PU = ((uint8_t)IOC_OVERRIDE_PUE), /**< input, pull-up */
GPIO_OUT = ((uint8_t)IOC_OVERRIDE_OE), /**< output */
GPIO_OD = (0xff), /**< not supported */
GPIO_OD_PU = (0xff) /**< not supported */
} gpio_mode_t;
/** @} */
/**
* @brief I2C configuration options
*/
typedef struct {
gpio_t scl_pin; /**< pin used for SCL */
gpio_t sda_pin; /**< pin used for SDA */
@ -64,8 +83,8 @@ typedef struct {
/**
* @brief SPI configuration data structure
* @{
*/
#define HAVE_PERIPH_SPI_CONF_T
typedef struct {
cc2538_ssi_t *dev; /**< SSI device */
gpio_t mosi_pin; /**< pin used for MOSI */
@ -73,6 +92,7 @@ typedef struct {
gpio_t sck_pin; /**< pin used for SCK */
gpio_t cs_pin; /**< pin used for CS */
} periph_spi_conf_t;
/** @} */
/**
* @brief Timer configuration data

649
cpu/cc2538/periph/gpio.c
View File

@ -1,19 +1,21 @@
/*
* Copyright (C) 2014 Loci Controls Inc.
* 2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup driver_periph
* @ingroup cpu_cc2538
* @{
*
* @file
* @brief Low-level GPIO driver implementation
*
* @author Ian Martin <ian@locicontrols.com>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
@ -22,584 +24,187 @@
#include "cpu.h"
#include "periph/gpio.h"
#include "periph_conf.h"
/**
* @brief Generate a bit mask in which only the specified bit is high.
*
* @param[in] n Number of the bit to set high in the mask.
*
* @return A bit mask in which bit n is high.
*/
#define BIT(n) ( 1 << (n) )
#define GPIO_MASK (0xfffff000)
#define PORTNUM_MASK (0x00007000)
#define PORTNUM_SHIFT (12U)
#define PIN_MASK (0x00000007)
#define MODE_NOTSUP (0xff)
/**
* @brief Checks a bit in enable_lut to determine if a GPIO is enabled
*
* @param[in] dev RIOT GPIO device number
*
* @return 0 or 1 indicating if the specified GPIO is enabled
*/
#define gpio_enabled(dev) ( (enable_lut >> (dev)) & 1 )
static gpio_isr_ctx_t gpio_config[GPIO_NUMOF];
const uint32_t enable_lut = 0
#if GPIO_0_EN
| BIT(0)
#endif
#if GPIO_1_EN
| BIT(1)
#endif
#if GPIO_2_EN
| BIT(2)
#endif
#if GPIO_3_EN
| BIT(3)
#endif
#if GPIO_4_EN
| BIT(4)
#endif
#if GPIO_5_EN
| BIT(5)
#endif
#if GPIO_6_EN
| BIT(6)
#endif
#if GPIO_7_EN
| BIT(7)
#endif
#if GPIO_8_EN
| BIT(8)
#endif
#if GPIO_9_EN
| BIT(9)
#endif
#if GPIO_10_EN
| BIT(10)
#endif
#if GPIO_11_EN
| BIT(11)
#endif
#if GPIO_12_EN
| BIT(12)
#endif
#if GPIO_13_EN
| BIT(13)
#endif
#if GPIO_14_EN
| BIT(14)
#endif
#if GPIO_15_EN
| BIT(15)
#endif
#if GPIO_16_EN
| BIT(16)
#endif
#if GPIO_17_EN
| BIT(17)
#endif
#if GPIO_18_EN
| BIT(18)
#endif
#if GPIO_19_EN
| BIT(19)
#endif
#if GPIO_20_EN
| BIT(20)
#endif
#if GPIO_21_EN
| BIT(21)
#endif
#if GPIO_22_EN
| BIT(22)
#endif
#if GPIO_23_EN
| BIT(23)
#endif
#if GPIO_24_EN
| BIT(24)
#endif
#if GPIO_25_EN
| BIT(25)
#endif
#if GPIO_26_EN
| BIT(26)
#endif
#if GPIO_27_EN
| BIT(27)
#endif
#if GPIO_28_EN
| BIT(28)
#endif
#if GPIO_29_EN
| BIT(29)
#endif
#if GPIO_30_EN
| BIT(30)
#endif
#if GPIO_31_EN
| BIT(31)
#endif
;
const unsigned int pin_lut[] = {
#if GPIO_0_EN
[ 0] = GPIO_0_PIN,
#endif
#if GPIO_1_EN
[ 1] = GPIO_1_PIN,
#endif
#if GPIO_2_EN
[ 2] = GPIO_2_PIN,
#endif
#if GPIO_3_EN
[ 3] = GPIO_3_PIN,
#endif
#if GPIO_4_EN
[ 4] = GPIO_4_PIN,
#endif
#if GPIO_5_EN
[ 5] = GPIO_5_PIN,
#endif
#if GPIO_6_EN
[ 6] = GPIO_6_PIN,
#endif
#if GPIO_7_EN
[ 7] = GPIO_7_PIN,
#endif
#if GPIO_8_EN
[ 8] = GPIO_8_PIN,
#endif
#if GPIO_9_EN
[ 9] = GPIO_9_PIN,
#endif
#if GPIO_10_EN
[10] = GPIO_10_PIN,
#endif
#if GPIO_11_EN
[11] = GPIO_11_PIN,
#endif
#if GPIO_12_EN
[12] = GPIO_12_PIN,
#endif
#if GPIO_13_EN
[13] = GPIO_13_PIN,
#endif
#if GPIO_14_EN
[14] = GPIO_14_PIN,
#endif
#if GPIO_15_EN
[15] = GPIO_15_PIN,
#endif
#if GPIO_16_EN
[16] = GPIO_16_PIN,
#endif
#if GPIO_17_EN
[17] = GPIO_17_PIN,
#endif
#if GPIO_18_EN
[18] = GPIO_18_PIN,
#endif
#if GPIO_19_EN
[19] = GPIO_19_PIN,
#endif
#if GPIO_20_EN
[20] = GPIO_20_PIN,
#endif
#if GPIO_21_EN
[21] = GPIO_21_PIN,
#endif
#if GPIO_22_EN
[22] = GPIO_22_PIN,
#endif
#if GPIO_23_EN
[23] = GPIO_23_PIN,
#endif
#if GPIO_24_EN
[24] = GPIO_24_PIN,
#endif
#if GPIO_25_EN
[25] = GPIO_25_PIN,
#endif
#if GPIO_26_EN
[26] = GPIO_26_PIN,
#endif
#if GPIO_27_EN
[27] = GPIO_27_PIN,
#endif
#if GPIO_28_EN
[28] = GPIO_28_PIN,
#endif
#if GPIO_29_EN
[29] = GPIO_29_PIN,
#endif
#if GPIO_30_EN
[30] = GPIO_30_PIN,
#endif
#if GPIO_31_EN
[31] = GPIO_31_PIN,
#endif
};
static const uint8_t reverse_pin_lut[] = {
#if GPIO_0_EN
[GPIO_0_PIN] = 0,
#endif
#if GPIO_1_EN
[GPIO_1_PIN] = 1,
#endif
#if GPIO_2_EN
[GPIO_2_PIN] = 2,
#endif
#if GPIO_3_EN
[GPIO_3_PIN] = 3,
#endif
#if GPIO_4_EN
[GPIO_4_PIN] = 4,
#endif
#if GPIO_5_EN
[GPIO_5_PIN] = 5,
#endif
#if GPIO_6_EN
[GPIO_6_PIN] = 6,
#endif
#if GPIO_7_EN
[GPIO_7_PIN] = 7,
#endif
#if GPIO_8_EN
[GPIO_8_PIN] = 8,
#endif
#if GPIO_9_EN
[GPIO_9_PIN] = 9,
#endif
#if GPIO_10_EN
[GPIO_10_PIN] = 10,
#endif
#if GPIO_11_EN
[GPIO_11_PIN] = 11,
#endif
#if GPIO_12_EN
[GPIO_12_PIN] = 12,
#endif
#if GPIO_13_EN
[GPIO_13_PIN] = 13,
#endif
#if GPIO_14_EN
[GPIO_14_PIN] = 14,
#endif
#if GPIO_15_EN
[GPIO_15_PIN] = 15,
#endif
#if GPIO_16_EN
[GPIO_16_PIN] = 16,
#endif
#if GPIO_17_EN
[GPIO_17_PIN] = 17,
#endif
#if GPIO_18_EN
[GPIO_18_PIN] = 18,
#endif
#if GPIO_19_EN
[GPIO_19_PIN] = 19,
#endif
#if GPIO_20_EN
[GPIO_20_PIN] = 20,
#endif
#if GPIO_21_EN
[GPIO_21_PIN] = 21,
#endif
#if GPIO_22_EN
[GPIO_22_PIN] = 22,
#endif
#if GPIO_23_EN
[GPIO_23_PIN] = 23,
#endif
#if GPIO_24_EN
[GPIO_24_PIN] = 24,
#endif
#if GPIO_25_EN
[GPIO_25_PIN] = 25,
#endif
#if GPIO_26_EN
[GPIO_26_PIN] = 26,
#endif
#if GPIO_27_EN
[GPIO_27_PIN] = 27,
#endif
#if GPIO_28_EN
[GPIO_28_PIN] = 28,
#endif
#if GPIO_29_EN
[GPIO_29_PIN] = 29,
#endif
#if GPIO_30_EN
[GPIO_30_PIN] = 30,
#endif
#if GPIO_31_EN
[GPIO_31_PIN] = 31,
#endif
};
int gpio_init(gpio_t dev, gpio_mode_t mode)
static inline cc2538_gpio_t *gpio(gpio_t pin)
{
int pin;
return (cc2538_gpio_t *)(pin & GPIO_MASK);
}
if (!gpio_enabled(dev)) {
static inline int port_num(gpio_t pin)
{
return (int)((pin & PORTNUM_MASK) >> PORTNUM_SHIFT) - 1;
}
static inline int pin_num(gpio_t pin)
{
return (int)(pin & PIN_MASK);
}
static inline uint32_t pin_mask(gpio_t pin)
{
return (1 << (pin & PIN_MASK));
}
static inline int pp_num(gpio_t pin)
{
return (port_num(pin) * 8) + pin_num(pin);
}
static gpio_isr_ctx_t isr_ctx[4][8];
int gpio_init(gpio_t pin, gpio_mode_t mode)
{
/* check if mode is valid */
if (mode == MODE_NOTSUP) {
return -1;
}
pin = pin_lut[dev];
gpio_software_control(pin);
switch (mode) {
case GPIO_IN:
gpio_dir_input(pin);
/* configure the pin's pull resistor state */
IOC_PXX_OVER[pin] = (IOC_OVERRIDE_DIS);
/* disable any alternate function and any eventual interrupts */
gpio(pin)->IE &= ~pin_mask(pin);
gpio(pin)->AFSEL &= ~pin_mask(pin);
/* configure pull configuration */
IOC->OVER[pp_num(pin)] = mode;
/* set pin direction */
if (mode == IOC_OVERRIDE_OE) {
gpio(pin)->DIR |= pin_mask(pin);
}
else {
gpio(pin)->DIR &= ~pin_mask(pin);
}
/* clear pin */
gpio(pin)->DATA &= ~pin_mask(pin);
return 0;
}
int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
gpio_cb_t cb, void *arg)
{
if (gpio_init(pin, mode) != 0) {
return -1;
}
/* store the callback information for later: */
isr_ctx[port_num(pin)][pin_num(pin)].cb = cb;
isr_ctx[port_num(pin)][pin_num(pin)].arg = arg;
/* enable power-up interrupts for this GPIO port: */
SYS_CTRL->IWE |= port_num(pin);
/* configure the active flank(s) */
gpio(pin)->IS &= ~pin_mask(pin);
switch(flank) {
case GPIO_FALLING:
gpio(pin)->IBE &= ~pin_mask(pin);
gpio(pin)->IEV &= ~pin_mask(pin);
gpio(pin)->P_EDGE_CTRL |= (1 << pp_num(pin));
break;
case GPIO_IN_PD:
gpio_dir_input(pin);
/* configure the pin's pull resistor state */
IOC_PXX_OVER[pin] = (IOC_OVERRIDE_PDE);
case GPIO_RISING:
gpio(pin)->IBE &= ~pin_mask(pin);
gpio(pin)->IEV |= pin_mask(pin);
gpio(pin)->P_EDGE_CTRL &= (1 << pp_num(pin));
break;
case GPIO_IN_PU:
gpio_dir_input(pin);
/* configure the pin's pull resistor state */
IOC_PXX_OVER[pin] = (IOC_OVERRIDE_PUE);
break;
case GPIO_OUT:
gpio_dir_output(pin);
/* configure the pin's pull resistor state */
IOC_PXX_OVER[pin] = (IOC_OVERRIDE_OE);
case GPIO_BOTH:
gpio(pin)->IBE |= pin_mask(pin);
break;
default:
return -1;
}
return 0;
}
int gpio_init_int(gpio_t dev, gpio_mode_t mode, gpio_flank_t flank,
gpio_cb_t cb, void *arg)
{
int res, pin, irq_num;
uint32_t mask;
cc2538_gpio_t* instance;
/* Note: gpio_init() also checks if the gpio is enabled. */
res = gpio_init(dev, mode);
if (res < 0) {
return res;
}
/* Store the callback information for later: */
gpio_config[dev].cb = cb;
gpio_config[dev].arg = arg;
pin = pin_lut[dev];
mask = GPIO_PIN_MASK(GPIO_BIT_NUM(pin));
instance = GPIO_NUM_TO_DEV(pin);
/* Enable power-up interrupts for this GPIO port: */
SYS_CTRL_IWE |= BIT(GPIO_NUM_TO_PORT_NUM(pin));
switch(flank) {
case GPIO_FALLING:
instance->IBE &= ~mask; /**< Not both edges */
instance->IEV &= ~mask; /**< Falling edge */
instance->P_EDGE_CTRL |= BIT(pin); /**< Falling edge power-up interrupt */
break;
case GPIO_RISING:
instance->IBE &= ~mask; /**< Not both edges */
instance->IEV |= mask; /**< Rising edge */
instance->P_EDGE_CTRL &= ~BIT(pin); /**< Rising edge power-up interrupt */
break;
case GPIO_BOTH:
instance->IBE = mask; /**< Both edges */
break;
}
instance->IS &= ~mask; /**< Edge triggered (as opposed to level-triggered) */
instance->IC |= mask; /**< Clear any preexisting interrupt state */
instance->PI_IEN |= BIT(pin); /**< Enable power-up interrupts for this pin */
/* Set interrupt priority for the whole GPIO port: */
irq_num = GPIO_PORT_A_IRQn + GPIO_NUM_TO_PORT_NUM(pin);
NVIC_SetPriority(irq_num, GPIO_IRQ_PRIO);
/* Enable interrupts for the whole GPIO port: */
NVIC_EnableIRQ(irq_num);
/* Enable interrupts for the specific pin: */
instance->IE |= mask;
/* reset interrupt status */
gpio(pin)->IC = pin_mask(pin);
gpio(pin)->PI_IEN |= (1 << pp_num(pin));
/* enable global interrupt for the selected GPIO port */
NVIC_EnableIRQ(GPIO_PORT_A_IRQn + port_num(pin));
/* unmask pin interrupt */
gpio(pin)->IE |= pin_mask(pin);
return 0;
}
void gpio_irq_enable(gpio_t dev)
void gpio_irq_enable(gpio_t pin)
{
if (gpio_enabled(dev)) {
int pin = pin_lut[dev];
GPIO_NUM_TO_DEV(pin)->IE |= GPIO_PIN_MASK(GPIO_BIT_NUM(pin));
}
gpio(pin)->IE |= pin_mask(pin);
}
void gpio_irq_disable(gpio_t dev)
void gpio_irq_disable(gpio_t pin)
{
if (gpio_enabled(dev)) {
int pin = pin_lut[dev];
GPIO_NUM_TO_DEV(pin)->IE &= ~GPIO_PIN_MASK(GPIO_BIT_NUM(pin));
}
gpio(pin)->IE &= ~pin_mask(pin);
}
int gpio_read(gpio_t dev)
int gpio_read(gpio_t pin)
{
int pin;
if (!gpio_enabled(dev)) {
return -1;
}
pin = pin_lut[dev];
return (GPIO_NUM_TO_DEV(pin)->DATA >> GPIO_BIT_NUM(pin)) & 1;
return (int)(gpio(pin)->DATA & pin_mask(pin));
}
void gpio_set(gpio_t dev)
void gpio_set(gpio_t pin)
{
int pin;
if (!gpio_enabled(dev)) {
return;
}
pin = pin_lut[dev];
GPIO_NUM_TO_DEV(pin)->DATA |= GPIO_PIN_MASK(GPIO_BIT_NUM(pin));
gpio(pin)->DATA |= pin_mask(pin);
}
void gpio_clear(gpio_t dev)
void gpio_clear(gpio_t pin)
{
int pin;
if (!gpio_enabled(dev)) {
return;
}
pin = pin_lut[dev];
GPIO_NUM_TO_DEV(pin)->DATA &= ~GPIO_PIN_MASK(GPIO_BIT_NUM(pin));
gpio(pin)->DATA &= ~pin_mask(pin);
}
void gpio_toggle(gpio_t dev)
void gpio_toggle(gpio_t pin)
{
if (gpio_read(dev)) {
gpio_clear(dev);
}
else {
gpio_set(dev);
}
gpio(pin)->DATA ^= pin_mask(pin);
}
void gpio_write(gpio_t dev, int value)
void gpio_write(gpio_t pin, int value)
{
if (value) {
gpio_set(dev);
gpio(pin)->DATA |= pin_mask(pin);
}
else {
gpio_clear(dev);
gpio(pin)->DATA &= ~pin_mask(pin);
}
}
static inline void handle_isr(cc2538_gpio_t *gpio, int port_num)
{
uint32_t state = gpio->MIS;
gpio->IC = 0x000000ff;
gpio->IRQ_DETECT_ACK = 0x000000ff;
for (int i = 0; i < GPIO_BITS_PER_PORT; i++) {
if (state & (1 << i)) {
isr_ctx[port_num][i].cb(isr_ctx[port_num][i].arg);
}
}
cortexm_isr_end();
}
/** @brief Interrupt service routine for Port A */
void isr_gpioa(void)
{
int mis, bit;
gpio_isr_ctx_t* state;
/* Latch and clear the interrupt status early on: */
mis = GPIO_A->MIS;
GPIO_A->IC = 0x000000ff;
GPIO_A->IRQ_DETECT_ACK = 0x000000ff;
for (bit = 0; bit < GPIO_BITS_PER_PORT; bit++) {
if (mis & 1) {
state = gpio_config + reverse_pin_lut[GPIO_PXX_TO_NUM(PORT_A, bit)];
state->cb(state->arg);
}
mis >>= 1;
}
cortexm_isr_end();
handle_isr(GPIO_A, 0);
}
/** @brief Interrupt service routine for Port B */
void isr_gpiob(void)
{
int mis, bit;
gpio_isr_ctx_t* state;
/* Latch and clear the interrupt status early on: */
mis = GPIO_B->MIS;
GPIO_B->IC = 0x000000ff;
GPIO_B->IRQ_DETECT_ACK = 0x0000ff00;
for (bit = 0; bit < GPIO_BITS_PER_PORT; bit++) {
if (mis & 1) {
state = gpio_config + reverse_pin_lut[GPIO_PXX_TO_NUM(PORT_B, bit)];
state->cb(state->arg);
}
mis >>= 1;
}
cortexm_isr_end();
handle_isr(GPIO_B, 1);
}
/** @brief Interrupt service routine for Port C */
void isr_gpioc(void)
{
int mis, bit;
gpio_isr_ctx_t* state;
/* Latch and clear the interrupt status early on: */
mis = GPIO_C->MIS;
GPIO_C->IC = 0x000000ff;
GPIO_C->IRQ_DETECT_ACK = 0x00ff0000;
for (bit = 0; bit < GPIO_BITS_PER_PORT; bit++) {
if (mis & 1) {
state = gpio_config + reverse_pin_lut[GPIO_PXX_TO_NUM(PORT_C, bit)];
state->cb(state->arg);
}
mis >>= 1;
}
cortexm_isr_end();
handle_isr(GPIO_C, 2);
}
/** @brief Interrupt service routine for Port D */
void isr_gpiod(void)
{
int mis, bit;
gpio_isr_ctx_t* state;
/* Latch and clear the interrupt status early on: */
mis = GPIO_D->MIS;
GPIO_D->IC = 0x000000ff;
GPIO_D->IRQ_DETECT_ACK = 0xff000000;
for (bit = 0; bit < GPIO_BITS_PER_PORT; bit++) {
if (mis & 1) {
state = gpio_config + reverse_pin_lut[GPIO_PXX_TO_NUM(PORT_D, bit)];
state->cb(state->arg);
}
mis >>= 1;
}
cortexm_isr_end();
handle_isr(GPIO_D, 3);
}