/* * pinmux.c * * configure the device pins for different peripheral signals * * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ * * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Texas Instruments Incorporated 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 * OWNER 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. */ /* * This file was automatically generated on 7/21/2014 at 3:06:20 PM * by TI PinMux version 3.0.334 * (Then modified to meet Zephyr coding style) */ /* * TI Recommends use of the PinMux utility to ensure consistent configuration * of pins: http://processors.wiki.ti.com/index.php/TI_PinMux_Tool * * Zephyr GPIO API however allows runtime configuration by applications. * * For the TI CC32XX port we leverage this output file * from the PinMux tool, and guard sections based on Kconfig variables. * * The individual (uart/gpio) driver init/configuration functions * therefore assume pinmux initialization is done here rather in the drivers * at runtime. */ #include #include "pinmux.h" #include #include #include #include #include #include #include #include #include /* Defines taken from SimpleLink SDK's I2CCC32XX.h: */ /* * Macros defining possible I2C signal pin mux options * * The bits in the pin mode macros are as follows: * The lower 8 bits of the macro refer to the pin, offset by 1, to match * driverlib pin defines. For example, I2C_CC32XX_PIN_01_I2C_SCL & 0xff = 0, * which equals PIN_01 in driverlib pin.h. By matching the PIN_xx defines in * driverlib pin.h, we can pass the pin directly to the driverlib functions. * The upper 8 bits of the macro correspond to the pin mux confg mode * value for the pin to operate in the I2C mode. For example, pin 1 is * configured with mode 1 to operate as I2C_SCL. */ #define I2C_CC32XX_PIN_01_I2C_SCL 0x100 /*!< PIN 1 is used for I2C_SCL */ #define I2C_CC32XX_PIN_02_I2C_SDA 0x101 /*!< PIN 2 is used for I2C_SDA */ #define I2C_CC32XX_PIN_03_I2C_SCL 0x502 /*!< PIN 3 is used for I2C_SCL */ #define I2C_CC32XX_PIN_04_I2C_SDA 0x503 /*!< PIN 4 is used for I2C_SDA */ #define I2C_CC32XX_PIN_05_I2C_SCL 0x504 /*!< PIN 5 is used for I2C_SCL */ #define I2C_CC32XX_PIN_06_I2C_SDA 0x505 /*!< PIN 6 is used for I2C_SDA */ #define I2C_CC32XX_PIN_16_I2C_SCL 0x90F /*!< PIN 16 is used for I2C_SCL */ #define I2C_CC32XX_PIN_17_I2C_SDA 0x910 /*!< PIN 17 is used for I2C_SDA */ int pinmux_initialize(struct device *port) { ARG_UNUSED(port); #ifdef CONFIG_UART_CC32XX /* Configure PIN_55 for UART0 UART0_TX */ MAP_PinTypeUART(PIN_55, PIN_MODE_3); /* Configure PIN_57 for UART0 UART0_RX */ MAP_PinTypeUART(PIN_57, PIN_MODE_3); #endif #ifdef CONFIG_GPIO_CC32XX_A1 /* Enable Peripheral Clocks */ MAP_PRCMPeripheralClkEnable(PRCM_GPIOA1, PRCM_RUN_MODE_CLK); /* The following enables the 3 LEDs for the blinking samples */ /* Configure PIN_64 for GPIOOutput */ MAP_PinTypeGPIO(PIN_64, PIN_MODE_0, false); MAP_GPIODirModeSet(GPIOA1_BASE, 0x2, GPIO_DIR_MODE_OUT); /* Configure PIN_01 for GPIOOutput */ MAP_PinTypeGPIO(PIN_01, PIN_MODE_0, false); MAP_GPIODirModeSet(GPIOA1_BASE, 0x4, GPIO_DIR_MODE_OUT); /* Configure PIN_02 for GPIOOutput */ MAP_PinTypeGPIO(PIN_02, PIN_MODE_0, false); MAP_GPIODirModeSet(GPIOA1_BASE, 0x8, GPIO_DIR_MODE_OUT); /* SW3: Configure PIN_04 (GPIO13) for GPIOInput */ MAP_PinTypeGPIO(PIN_04, PIN_MODE_0, false); MAP_GPIODirModeSet(GPIOA1_BASE, 0x20, GPIO_DIR_MODE_IN); #endif #ifdef CONFIG_GPIO_CC32XX_A2 MAP_PRCMPeripheralClkEnable(PRCM_GPIOA2, PRCM_RUN_MODE_CLK); /* SW2: Configure PIN_15 (GPIO22) for GPIOInput */ MAP_PinTypeGPIO(PIN_15, PIN_MODE_0, false); MAP_GPIODirModeSet(GPIOA2_BASE, 0x40, GPIO_DIR_MODE_IN); #endif #ifdef CONFIG_GPIO_CC32XX_A3 MAP_PRCMPeripheralClkEnable(PRCM_GPIOA3, PRCM_RUN_MODE_CLK); #endif #ifdef CONFIG_I2C_CC32XX { unsigned long pin; unsigned long mode; /* Enable the I2C module clocks and wait for completion:*/ MAP_PRCMPeripheralClkEnable(PRCM_I2CA0, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK); while (!MAP_PRCMPeripheralStatusGet(PRCM_I2CA0)) { } pin = I2C_CC32XX_PIN_01_I2C_SCL & 0xff; mode = (I2C_CC32XX_PIN_01_I2C_SCL >> 8) & 0xff; MAP_PinTypeI2C(pin, mode); pin = I2C_CC32XX_PIN_02_I2C_SDA & 0xff; mode = (I2C_CC32XX_PIN_02_I2C_SDA >> 8) & 0xff; MAP_PinTypeI2C(pin, mode); } #endif return 0; } SYS_INIT(pinmux_initialize, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);