161 lines
5.8 KiB
C
161 lines
5.8 KiB
C
/*
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* pinmux.c
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*
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* configure the device pins for different peripheral signals
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*
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* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* This file was automatically generated on 7/21/2014 at 3:06:20 PM
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* by TI PinMux version 3.0.334
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* (Then modified to meet Zephyr coding style)
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*/
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/*
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* TI Recommends use of the PinMux utility to ensure consistent configuration
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* of pins: http://processors.wiki.ti.com/index.php/TI_PinMux_Tool
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*
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* Zephyr GPIO API however allows runtime configuration by applications.
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*
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* For the TI CC32XX port we leverage this output file
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* from the PinMux tool, and guard sections based on Kconfig variables.
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*
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* The individual (uart/gpio) driver init/configuration functions
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* therefore assume pinmux initialization is done here rather in the drivers
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* at runtime.
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*/
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#include <init.h>
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#include <drivers/pinmux.h>
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#include <inc/hw_types.h>
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#include <inc/hw_memmap.h>
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#include <inc/hw_gpio.h>
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#include <driverlib/pin.h>
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#include <driverlib/rom.h>
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#include <driverlib/rom_map.h>
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#include <driverlib/gpio.h>
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#include <driverlib/prcm.h>
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#include <driverlib/i2c.h>
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/* Defines taken from SimpleLink SDK's I2CCC32XX.h: */
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/*
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* Macros defining possible I2C signal pin mux options
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*
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* The bits in the pin mode macros are as follows:
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* The lower 8 bits of the macro refer to the pin, offset by 1, to match
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* driverlib pin defines. For example, I2C_CC32XX_PIN_01_I2C_SCL & 0xff = 0,
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* which equals PIN_01 in driverlib pin.h. By matching the PIN_xx defines in
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* driverlib pin.h, we can pass the pin directly to the driverlib functions.
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* The upper 8 bits of the macro correspond to the pin mux confg mode
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* value for the pin to operate in the I2C mode. For example, pin 1 is
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* configured with mode 1 to operate as I2C_SCL.
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*/
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#define I2C_CC32XX_PIN_01_I2C_SCL 0x100 /*!< PIN 1 is used for I2C_SCL */
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#define I2C_CC32XX_PIN_02_I2C_SDA 0x101 /*!< PIN 2 is used for I2C_SDA */
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#define I2C_CC32XX_PIN_03_I2C_SCL 0x502 /*!< PIN 3 is used for I2C_SCL */
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#define I2C_CC32XX_PIN_04_I2C_SDA 0x503 /*!< PIN 4 is used for I2C_SDA */
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#define I2C_CC32XX_PIN_05_I2C_SCL 0x504 /*!< PIN 5 is used for I2C_SCL */
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#define I2C_CC32XX_PIN_06_I2C_SDA 0x505 /*!< PIN 6 is used for I2C_SDA */
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#define I2C_CC32XX_PIN_16_I2C_SCL 0x90F /*!< PIN 16 is used for I2C_SCL */
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#define I2C_CC32XX_PIN_17_I2C_SDA 0x910 /*!< PIN 17 is used for I2C_SDA */
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int pinmux_initialize(const struct device *port)
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{
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ARG_UNUSED(port);
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#ifdef CONFIG_UART_CC32XX
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/* Configure PIN_55 for UART0 UART0_TX */
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MAP_PinTypeUART(PIN_55, PIN_MODE_3);
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/* Configure PIN_57 for UART0 UART0_RX */
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MAP_PinTypeUART(PIN_57, PIN_MODE_3);
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#endif
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/* Enable Peripheral Clocks */
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MAP_PRCMPeripheralClkEnable(PRCM_GPIOA1, PRCM_RUN_MODE_CLK);
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/* The following enables the 3 LEDs for the blinking samples */
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/* Configure PIN_64 for GPIOOutput */
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MAP_PinTypeGPIO(PIN_64, PIN_MODE_0, false);
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MAP_GPIODirModeSet(GPIOA1_BASE, 0x2, GPIO_DIR_MODE_OUT);
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/* Configure PIN_01 for GPIOOutput */
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MAP_PinTypeGPIO(PIN_01, PIN_MODE_0, false);
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MAP_GPIODirModeSet(GPIOA1_BASE, 0x4, GPIO_DIR_MODE_OUT);
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/* Configure PIN_02 for GPIOOutput */
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MAP_PinTypeGPIO(PIN_02, PIN_MODE_0, false);
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MAP_GPIODirModeSet(GPIOA1_BASE, 0x8, GPIO_DIR_MODE_OUT);
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/* SW3: Configure PIN_04 (GPIO13) for GPIOInput */
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MAP_PinTypeGPIO(PIN_04, PIN_MODE_0, false);
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MAP_GPIODirModeSet(GPIOA1_BASE, 0x20, GPIO_DIR_MODE_IN);
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MAP_PRCMPeripheralClkEnable(PRCM_GPIOA2, PRCM_RUN_MODE_CLK);
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/* SW2: Configure PIN_15 (GPIO22) for GPIOInput */
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MAP_PinTypeGPIO(PIN_15, PIN_MODE_0, false);
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MAP_GPIODirModeSet(GPIOA2_BASE, 0x40, GPIO_DIR_MODE_IN);
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MAP_PRCMPeripheralClkEnable(PRCM_GPIOA3, PRCM_RUN_MODE_CLK);
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#ifdef CONFIG_I2C_CC32XX
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{
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unsigned long pin;
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unsigned long mode;
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/* Enable the I2C module clocks and wait for completion:*/
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MAP_PRCMPeripheralClkEnable(PRCM_I2CA0,
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PRCM_RUN_MODE_CLK |
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PRCM_SLP_MODE_CLK);
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while (!MAP_PRCMPeripheralStatusGet(PRCM_I2CA0)) {
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}
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pin = I2C_CC32XX_PIN_01_I2C_SCL & 0xff;
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mode = (I2C_CC32XX_PIN_01_I2C_SCL >> 8) & 0xff;
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MAP_PinTypeI2C(pin, mode);
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pin = I2C_CC32XX_PIN_02_I2C_SDA & 0xff;
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mode = (I2C_CC32XX_PIN_02_I2C_SDA >> 8) & 0xff;
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MAP_PinTypeI2C(pin, mode);
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}
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#endif
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return 0;
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}
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SYS_INIT(pinmux_initialize, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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