Fork of Smoothie to port to mbed non-LPC targets.
Fork of Smoothie by
Diff: libs/LPC17xx/LPC17xxLib/src/lpc17xx_pinsel.c
- Revision:
- 3:f151d08d335c
- Parent:
- 2:1df0b61d3b5a
--- a/libs/LPC17xx/LPC17xxLib/src/lpc17xx_pinsel.c Fri Feb 28 18:52:52 2014 -0800 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,315 +0,0 @@ -#ifdef __LPC17XX__ - -/********************************************************************** -* $Id$ lpc17xx_pinsel.c 2010-05-21 -*//** -* @file lpc17xx_pinsel.c -* @brief Contains all functions support for Pin connect block firmware -* library on LPC17xx -* @version 2.0 -* @date 21. May. 2010 -* @author NXP MCU SW Application Team -* -* Copyright(C) 2010, NXP Semiconductor -* All rights reserved. -* -*********************************************************************** -* Software that is described herein is for illustrative purposes only -* which provides customers with programming information regarding the -* products. This software is supplied "AS IS" without any warranties. -* NXP Semiconductors assumes no responsibility or liability for the -* use of the software, conveys no license or title under any patent, -* copyright, or mask work right to the product. NXP Semiconductors -* reserves the right to make changes in the software without -* notification. NXP Semiconductors also make no representation or -* warranty that such application will be suitable for the specified -* use without further testing or modification. -**********************************************************************/ - -/* Peripheral group ----------------------------------------------------------- */ -/** @addtogroup PINSEL - * @{ - */ - -/* Includes ------------------------------------------------------------------- */ -#include "lpc17xx_pinsel.h" - -/* Public Functions ----------------------------------------------------------- */ - -static void set_PinFunc ( uint8_t portnum, uint8_t pinnum, uint8_t funcnum); -static void set_ResistorMode ( uint8_t portnum, uint8_t pinnum, uint8_t modenum); -static void set_OpenDrainMode( uint8_t portnum, uint8_t pinnum, uint8_t modenum); - -/*********************************************************************//** - * @brief Setup the pin selection function - * @param[in] portnum PORT number, - * should be one of the following: - * - PINSEL_PORT_0 : Port 0 - * - PINSEL_PORT_1 : Port 1 - * - PINSEL_PORT_2 : Port 2 - * - PINSEL_PORT_3 : Port 3 - * - * @param[in] pinnum Pin number, - * should be one of the following: - - PINSEL_PIN_0 : Pin 0 - - PINSEL_PIN_1 : Pin 1 - - PINSEL_PIN_2 : Pin 2 - - PINSEL_PIN_3 : Pin 3 - - PINSEL_PIN_4 : Pin 4 - - PINSEL_PIN_5 : Pin 5 - - PINSEL_PIN_6 : Pin 6 - - PINSEL_PIN_7 : Pin 7 - - PINSEL_PIN_8 : Pin 8 - - PINSEL_PIN_9 : Pin 9 - - PINSEL_PIN_10 : Pin 10 - - PINSEL_PIN_11 : Pin 11 - - PINSEL_PIN_12 : Pin 12 - - PINSEL_PIN_13 : Pin 13 - - PINSEL_PIN_14 : Pin 14 - - PINSEL_PIN_15 : Pin 15 - - PINSEL_PIN_16 : Pin 16 - - PINSEL_PIN_17 : Pin 17 - - PINSEL_PIN_18 : Pin 18 - - PINSEL_PIN_19 : Pin 19 - - PINSEL_PIN_20 : Pin 20 - - PINSEL_PIN_21 : Pin 21 - - PINSEL_PIN_22 : Pin 22 - - PINSEL_PIN_23 : Pin 23 - - PINSEL_PIN_24 : Pin 24 - - PINSEL_PIN_25 : Pin 25 - - PINSEL_PIN_26 : Pin 26 - - PINSEL_PIN_27 : Pin 27 - - PINSEL_PIN_28 : Pin 28 - - PINSEL_PIN_29 : Pin 29 - - PINSEL_PIN_30 : Pin 30 - - PINSEL_PIN_31 : Pin 31 - - * @param[in] funcnum Function number, - * should be one of the following: - * - PINSEL_FUNC_0 : default function - * - PINSEL_FUNC_1 : first alternate function - * - PINSEL_FUNC_2 : second alternate function - * - PINSEL_FUNC_3 : third alternate function - * - * @return None - **********************************************************************/ -static void set_PinFunc ( uint8_t portnum, uint8_t pinnum, uint8_t funcnum) -{ - uint32_t pinnum_t = pinnum; - uint32_t pinselreg_idx = 2 * portnum; - volatile uint32_t *pPinCon = (volatile uint32_t *)&LPC_PINCON->PINSEL0; - - if (pinnum_t >= 16) { - pinnum_t -= 16; - pinselreg_idx++; - } - *(volatile uint32_t *)(pPinCon + pinselreg_idx) &= ~(0x03UL << (pinnum_t * 2)); - *(volatile uint32_t *)(pPinCon + pinselreg_idx) |= ((uint32_t)funcnum) << (pinnum_t * 2); -} - -/*********************************************************************//** - * @brief Setup resistor mode for each pin - * @param[in] portnum PORT number, - * should be one of the following: - * - PINSEL_PORT_0 : Port 0 - * - PINSEL_PORT_1 : Port 1 - * - PINSEL_PORT_2 : Port 2 - * - PINSEL_PORT_3 : Port 3 - * @param[in] pinnum Pin number, - * should be one of the following: - - PINSEL_PIN_0 : Pin 0 - - PINSEL_PIN_1 : Pin 1 - - PINSEL_PIN_2 : Pin 2 - - PINSEL_PIN_3 : Pin 3 - - PINSEL_PIN_4 : Pin 4 - - PINSEL_PIN_5 : Pin 5 - - PINSEL_PIN_6 : Pin 6 - - PINSEL_PIN_7 : Pin 7 - - PINSEL_PIN_8 : Pin 8 - - PINSEL_PIN_9 : Pin 9 - - PINSEL_PIN_10 : Pin 10 - - PINSEL_PIN_11 : Pin 11 - - PINSEL_PIN_12 : Pin 12 - - PINSEL_PIN_13 : Pin 13 - - PINSEL_PIN_14 : Pin 14 - - PINSEL_PIN_15 : Pin 15 - - PINSEL_PIN_16 : Pin 16 - - PINSEL_PIN_17 : Pin 17 - - PINSEL_PIN_18 : Pin 18 - - PINSEL_PIN_19 : Pin 19 - - PINSEL_PIN_20 : Pin 20 - - PINSEL_PIN_21 : Pin 21 - - PINSEL_PIN_22 : Pin 22 - - PINSEL_PIN_23 : Pin 23 - - PINSEL_PIN_24 : Pin 24 - - PINSEL_PIN_25 : Pin 25 - - PINSEL_PIN_26 : Pin 26 - - PINSEL_PIN_27 : Pin 27 - - PINSEL_PIN_28 : Pin 28 - - PINSEL_PIN_29 : Pin 29 - - PINSEL_PIN_30 : Pin 30 - - PINSEL_PIN_31 : Pin 31 - - * @param[in] modenum: Mode number, - * should be one of the following: - - PINSEL_PINMODE_PULLUP : Internal pull-up resistor - - PINSEL_PINMODE_TRISTATE : Tri-state - - PINSEL_PINMODE_PULLDOWN : Internal pull-down resistor - - * @return None - **********************************************************************/ -void set_ResistorMode ( uint8_t portnum, uint8_t pinnum, uint8_t modenum) -{ - uint32_t pinnum_t = pinnum; - uint32_t pinmodereg_idx = 2 * portnum; - volatile uint32_t *pPinCon = (volatile uint32_t *)&LPC_PINCON->PINMODE0; - - if (pinnum_t >= 16) { - pinnum_t -= 16; - pinmodereg_idx++ ; - } - - *(volatile uint32_t *)(pPinCon + pinmodereg_idx) &= ~(0x03UL << (pinnum_t * 2)); - *(volatile uint32_t *)(pPinCon + pinmodereg_idx) |= ((uint32_t)modenum) << (pinnum_t * 2); -} - -/*********************************************************************//** - * @brief Setup Open drain mode for each pin - * @param[in] portnum PORT number, - * should be one of the following: - * - PINSEL_PORT_0 : Port 0 - * - PINSEL_PORT_1 : Port 1 - * - PINSEL_PORT_2 : Port 2 - * - PINSEL_PORT_3 : Port 3 - * - * @param[in] pinnum Pin number, - * should be one of the following: - - PINSEL_PIN_0 : Pin 0 - - PINSEL_PIN_1 : Pin 1 - - PINSEL_PIN_2 : Pin 2 - - PINSEL_PIN_3 : Pin 3 - - PINSEL_PIN_4 : Pin 4 - - PINSEL_PIN_5 : Pin 5 - - PINSEL_PIN_6 : Pin 6 - - PINSEL_PIN_7 : Pin 7 - - PINSEL_PIN_8 : Pin 8 - - PINSEL_PIN_9 : Pin 9 - - PINSEL_PIN_10 : Pin 10 - - PINSEL_PIN_11 : Pin 11 - - PINSEL_PIN_12 : Pin 12 - - PINSEL_PIN_13 : Pin 13 - - PINSEL_PIN_14 : Pin 14 - - PINSEL_PIN_15 : Pin 15 - - PINSEL_PIN_16 : Pin 16 - - PINSEL_PIN_17 : Pin 17 - - PINSEL_PIN_18 : Pin 18 - - PINSEL_PIN_19 : Pin 19 - - PINSEL_PIN_20 : Pin 20 - - PINSEL_PIN_21 : Pin 21 - - PINSEL_PIN_22 : Pin 22 - - PINSEL_PIN_23 : Pin 23 - - PINSEL_PIN_24 : Pin 24 - - PINSEL_PIN_25 : Pin 25 - - PINSEL_PIN_26 : Pin 26 - - PINSEL_PIN_27 : Pin 27 - - PINSEL_PIN_28 : Pin 28 - - PINSEL_PIN_29 : Pin 29 - - PINSEL_PIN_30 : Pin 30 - - PINSEL_PIN_31 : Pin 31 - - * @param[in] modenum Open drain mode number, - * should be one of the following: - * - PINSEL_PINMODE_NORMAL : Pin is in the normal (not open drain) mode - * - PINSEL_PINMODE_OPENDRAIN : Pin is in the open drain mode - * - * @return None - **********************************************************************/ -void set_OpenDrainMode( uint8_t portnum, uint8_t pinnum, uint8_t modenum) -{ - volatile uint32_t *pPinCon = (volatile uint32_t *)&LPC_PINCON->PINMODE_OD0; - - if (modenum == PINSEL_PINMODE_OPENDRAIN){ - *(volatile uint32_t *)(pPinCon + portnum) |= (0x01UL << pinnum); - } else { - *(volatile uint32_t *)(pPinCon + portnum) &= ~(0x01UL << pinnum); - } -} - -/* End of Public Functions ---------------------------------------------------- */ - -/* Public Functions ----------------------------------------------------------- */ -/** @addtogroup PINSEL_Public_Functions - * @{ - */ -/*********************************************************************//** - * @brief Configure trace function - * @param[in] NewState State of the Trace function configuration, - * should be one of the following: - * - ENABLE : Enable Trace Function - * - DISABLE : Disable Trace Function - * - * @return None - **********************************************************************/ -void PINSEL_ConfigTraceFunc(FunctionalState NewState) -{ - if (NewState == ENABLE) { - LPC_PINCON->PINSEL10 |= (0x01UL << 3); - } else if (NewState == DISABLE) { - LPC_PINCON->PINSEL10 &= ~(0x01UL << 3); - } -} - -/*********************************************************************//** - * @brief Setup I2C0 pins - * @param[in] i2cPinMode I2C pin mode, - * should be one of the following: - * - PINSEL_I2C_Normal_Mode : The standard drive mode - * - PINSEL_I2C_Fast_Mode : Fast Mode Plus drive mode - * - * @param[in] filterSlewRateEnable should be: - * - ENABLE: Enable filter and slew rate. - * - DISABLE: Disable filter and slew rate. - * - * @return None - **********************************************************************/ -void PINSEL_SetI2C0Pins(uint8_t i2cPinMode, FunctionalState filterSlewRateEnable) -{ - uint32_t regVal; - - if (i2cPinMode == PINSEL_I2C_Fast_Mode){ - regVal = PINSEL_I2CPADCFG_SCLDRV0 | PINSEL_I2CPADCFG_SDADRV0; - } - - if (filterSlewRateEnable == DISABLE){ - regVal = PINSEL_I2CPADCFG_SCLI2C0 | PINSEL_I2CPADCFG_SDAI2C0; - } - LPC_PINCON->I2CPADCFG = regVal; -} - - -/*********************************************************************//** - * @brief Configure Pin corresponding to specified parameters passed - * in the PinCfg - * @param[in] PinCfg Pointer to a PINSEL_CFG_Type structure - * that contains the configuration information for the - * specified pin. - * @return None - **********************************************************************/ -void PINSEL_ConfigPin(PINSEL_CFG_Type *PinCfg) -{ - set_PinFunc(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Funcnum); - set_ResistorMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Pinmode); - set_OpenDrainMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->OpenDrain); -} - - -/** - * @} - */ - -/** - * @} - */ - -/* --------------------------------- End Of File ------------------------------ */ -#endif /* __LPC17XX__ */