/************************************************************************************ * arch/arm/src/lpc17xx_40xx/lpc178x_40xx_gpio.h * * Copyright (C) 2010, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 NuttX 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. * ************************************************************************************/ #ifndef __ARCH_ARM_SRC_LPC17XX_40XX_LPC178X_GPIO_H #define __ARCH_ARM_SRC_LPC17XX_40XX_LPC178X_GPIO_H /************************************************************************************ * Included Files ************************************************************************************/ /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Bit-encoded input to lpc17_40_configgpio() ******************************************/ /* Encoding: TTTT TTTT FFFF MMOV PPPN NNNN * * Special Pin Functions: TTTT TTTT * Pin Function: FFFF * Pin Mode bits: MM * Open drain: O (output pins) * Initial value: V (output pins) * Port number: PPP (0-4) * Pin number: NNNNN (0-31) */ /* Special Pin Functions * For pins that have ADC/DAC, USB, I2C */ #define GPIO_INBUFF_SHIFT (16) /* Bit 16: HYSTERESIS: 0-Disable, 1-Enabled */ #define GPIO_INBUFF_MASK (1 << GPIO_INBUFF_SHIFT) # define GPIO_HYSTERESIS (1 << GPIO_INBUFF_SHIFT) #define GPIO_INVERT (1 << 17) /* Bit 17: Input: 0-Not Inverted, 1-Inverted */ #define GPIO_SLEW_SHIFT (18) /* Bit 18: Rate Control: 0-Standard mode, 1-Fast mode */ #define GPIO_SLEW_MASK (1 << GPIO_SLEW_SHIFT) # define GPIO_SLEW_NORMAL (0 << GPIO_SLEW_SHIFT) # define GPIO_SLEW_FAST (1 << GPIO_SLEW_SHIFT) #define GPIO_ADMODE_SHIFT (19) /* Bit 19: A/D Modes: 0-Analog, 1-Digital */ #define GPIO_ADMODE_MASK (1 << GPIO_ADMODE_SHIFT) # define GPIO_MODE_DIGITAL (0 << GPIO_ADMODE_SHIFT) # define GPIO_MODE_ANALOG (1 << GPIO_ADMODE_SHIFT) #define GPIO_FILTER_SHIFT (20) /* Bit 20: Filter: 0-Off, 1-ON */ #define GPIO_FILTER_MASK (1 << GPIO_FILTER_SHIFT) # define GPIO_FILTER_OFF (0 << GPIO_FILTER_SHIFT) # define GPIO_FILTER_ON (1 << GPIO_FILTER_SHIFT) #define GPIO_DACEN (1 << 21) /* Bit 21: DAC: 0-Disabled, 1-Enabled, P0:26 only */ #define GPIO_I2CMODE_SHIFT (22) /* Bits 22-23: I2C mode */ #define GPIO_I2CMODE_MASK (3 << GPIO_I2CMODE_SHIFT) # define GPIO_I2CHS (1 << 22) /* Bit 22: Filter and Rate Control: 0-Enabled, 1-Disabled */ # define GPIO_HIDRIVE (1 << 23) /* Bit 23: Current Sink: 0-4mA, 1-20mA P5:2 and P5:3 only,*/ /* Pin Function bits: FFFF * Only meaningful when the GPIO function is GPIO_PIN */ #define GPIO_FUNC_SHIFT (12) /* Bits 12-15: GPIO mode */ #define GPIO_FUNC_MASK (15 << GPIO_FUNC_SHIFT) # define GPIO_INPUT (0 << GPIO_FUNC_SHIFT) /* 0000 GPIO input pin */ # define GPIO_INTFE (1 << GPIO_FUNC_SHIFT) /* 0001 GPIO interrupt falling edge */ # define GPIO_INTRE (2 << GPIO_FUNC_SHIFT) /* 0010 GPIO interrupt rising edge */ # define GPIO_INTBOTH (3 << GPIO_FUNC_SHIFT) /* 0011 GPIO interrupt both edges */ # define GPIO_OUTPUT (4 << GPIO_FUNC_SHIFT) /* 0100 GPIO outpout pin */ # define GPIO_ALT1 (5 << GPIO_FUNC_SHIFT) /* 0101 Alternate function 1 */ # define GPIO_ALT2 (6 << GPIO_FUNC_SHIFT) /* 0110 Alternate function 2 */ # define GPIO_ALT3 (7 << GPIO_FUNC_SHIFT) /* 0111 Alternate function 3 */ # define GPIO_ALT4 (8 << GPIO_FUNC_SHIFT) /* 1000 Alternate function 4 */ # define GPIO_ALT5 (9 << GPIO_FUNC_SHIFT) /* 1001 Alternate function 5 */ # define GPIO_ALT6 (10 << GPIO_FUNC_SHIFT) /* 1010 Alternate function 6 */ # define GPIO_ALT7 (11 << GPIO_FUNC_SHIFT) /* 1011 Alternate function 7 */ #define GPIO_EDGE_SHIFT (12) /* Bits 12-13: Interrupt edge bits */ #define GPIO_EDGE_MASK (3 << GPIO_EDGE_SHIFT) #define GPIO_INOUT_MASK GPIO_OUTPUT #define GPIO_FE_MASK GPIO_INTFE #define GPIO_RE_MASK GPIO_INTRE #define GPIO_ISGPIO(ps) ((uint16_t(ps) & GPIO_FUNC_MASK) <= GPIO_OUTPUT) #define GPIO_ISALT(ps) ((uint16_t(ps) & GPIO_FUNC_MASK) > GPIO_OUTPUT) #define GPIO_ISINPUT(ps) (((ps) & GPIO_FUNC_MASK) == GPIO_INPUT) #define GPIO_ISOUTPUT(ps) (((ps) & GPIO_FUNC_MASK) == GPIO_OUTPUT) #define GPIO_ISINORINT(ps) (((ps) & GPIO_INOUT_MASK) == 0) #define GPIO_ISOUTORALT(ps) (((ps) & GPIO_INOUT_MASK) != 0) #define GPIO_ISINTERRUPT(ps) (GPIO_ISOUTPUT(ps) && !GPIO_ISINPUT(ps)) #define GPIO_ISFE(ps) (((ps) & GPIO_FE_MASK) != 0) #define GPIO_ISRE(ps) (((ps) & GPIO_RE_MASK) != 0) /* Pin Mode: MM */ #define GPIO_PUMODE_SHIFT (10) /* Bits 10-11: Pin pull-up mode */ #define GPIO_PUMODE_MASK (3 << GPIO_PUMODE_SHIFT) # define GPIO_FLOAT (0 << GPIO_PUMODE_SHIFT) /* Neither pull-up nor -down */ # define GPIO_PULLDN (1 << GPIO_PUMODE_SHIFT) /* Pull-down resistor enabled */ # define GPIO_PULLUP (2 << GPIO_PUMODE_SHIFT) /* Pull-up resistor enabled */ # define GPIO_REPEATER (3 << GPIO_PUMODE_SHIFT) /* Repeater mode enabled */ /* Open drain: O */ #define GPIO_OPEN_DRAIN (1 << 9) /* Bit 9: Open drain mode */ /* Initial value: V */ #define GPIO_VALUE (1 << 8) /* Bit 8: Initial GPIO output value */ # define GPIO_VALUE_ONE GPIO_VALUE # define GPIO_VALUE_ZERO (0) /* Port number: PPP (0-5) */ #define GPIO_PORT_SHIFT (5) /* Bit 5-7: Port number */ #define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT) # define GPIO_PORT0 (0 << GPIO_PORT_SHIFT) # define GPIO_PORT1 (1 << GPIO_PORT_SHIFT) # define GPIO_PORT2 (2 << GPIO_PORT_SHIFT) # define GPIO_PORT3 (3 << GPIO_PORT_SHIFT) # define GPIO_PORT4 (4 << GPIO_PORT_SHIFT) # define GPIO_PORT5 (5 << GPIO_PORT_SHIFT) #define GPIO_NPORTS 6 /* Pin number: NNNNN (0-31) */ #define GPIO_PIN_SHIFT 0 /* Bits 0-4: GPIO number: 0-31 */ #define GPIO_PIN_MASK (31 << GPIO_PIN_SHIFT) # define GPIO_PIN0 (0 << GPIO_PIN_SHIFT) # define GPIO_PIN1 (1 << GPIO_PIN_SHIFT) # define GPIO_PIN2 (2 << GPIO_PIN_SHIFT) # define GPIO_PIN3 (3 << GPIO_PIN_SHIFT) # define GPIO_PIN4 (4 << GPIO_PIN_SHIFT) # define GPIO_PIN5 (5 << GPIO_PIN_SHIFT) # define GPIO_PIN6 (6 << GPIO_PIN_SHIFT) # define GPIO_PIN7 (7 << GPIO_PIN_SHIFT) # define GPIO_PIN8 (8 << GPIO_PIN_SHIFT) # define GPIO_PIN9 (9 << GPIO_PIN_SHIFT) # define GPIO_PIN10 (10 << GPIO_PIN_SHIFT) # define GPIO_PIN11 (11 << GPIO_PIN_SHIFT) # define GPIO_PIN12 (12 << GPIO_PIN_SHIFT) # define GPIO_PIN13 (13 << GPIO_PIN_SHIFT) # define GPIO_PIN14 (14 << GPIO_PIN_SHIFT) # define GPIO_PIN15 (15 << GPIO_PIN_SHIFT) # define GPIO_PIN16 (16 << GPIO_PIN_SHIFT) # define GPIO_PIN17 (17 << GPIO_PIN_SHIFT) # define GPIO_PIN18 (18 << GPIO_PIN_SHIFT) # define GPIO_PIN19 (19 << GPIO_PIN_SHIFT) # define GPIO_PIN20 (20 << GPIO_PIN_SHIFT) # define GPIO_PIN21 (21 << GPIO_PIN_SHIFT) # define GPIO_PIN22 (22 << GPIO_PIN_SHIFT) # define GPIO_PIN23 (23 << GPIO_PIN_SHIFT) # define GPIO_PIN24 (24 << GPIO_PIN_SHIFT) # define GPIO_PIN25 (25 << GPIO_PIN_SHIFT) # define GPIO_PIN26 (26 << GPIO_PIN_SHIFT) # define GPIO_PIN27 (27 << GPIO_PIN_SHIFT) # define GPIO_PIN28 (28 << GPIO_PIN_SHIFT) # define GPIO_PIN29 (29 << GPIO_PIN_SHIFT) # define GPIO_PIN30 (30 << GPIO_PIN_SHIFT) # define GPIO_PIN31 (31 << GPIO_PIN_SHIFT) /************************************************************************************ * Public Types ************************************************************************************/ typedef uint32_t lpc17_40_pinset_t; /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /**************************************************************************** * Public Functions ****************************************************************************/ #ifdef __cplusplus } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_ARM_SRC_LPC17XX_40XX_LPC178X_GPIO_H */