2013-04-04 01:47:43 +02:00
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/************************************************************************************
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* arch/arm/src/lpc17xx/lpc178x_gpio.h
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*
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* Copyright (C) 2010, 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_LPC17XX_LPC178X_GPIO_H
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#define __ARCH_ARM_SRC_LPC17XX_LPC178X_GPIO_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Bit-encoded input to lpc17_configgpio() ******************************************/
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/* Encoding: TTTT TTTT FFFF MMOV PPPN NNNN
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*
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* Special Pin Functions: TTTT TTTT
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* Pin Function: FFFF
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* Pin Mode bits: MM
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* Open drain: O (output pins)
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* Initial value: V (output pins)
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* Port number: PPP (0-4)
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* Pin number: NNNNN (0-31)
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*/
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/* Special Pin Functions
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2013-04-05 02:12:44 +02:00
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* For pins that have ADC/DAC, USB, I2C
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*/
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2013-04-13 01:48:50 +02:00
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#define GPIO_INBUFF_SHIFT (16) /* Bit 16: HYSTERESIS: 0-Disable, 1-Enabled */
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#define GPIO_INBUFF_MASK (1 << GPIO_INBUFF_SHIFT)
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# define GPIO_HYSTERESIS (1 << GPIO_INBUFF_SHIFT)
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#define GPIO_INVERT (1 << 17) /* Bit 17: Input: 0-Not Inverted, 1-Inverted */
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#define GPIO_SLEW_SHIFT (18) /* Bit 18: Rate Control: 0-Standard mode, 1-Fast mode */
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#define GPIO_SLEW_MASK (1 << GPIO_SLEW_SHIFT)
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# define GPIO_SLEW_NORMAL (0 << GPIO_SLEW_SHIFT)
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# define GPIO_SLEW_FAST (1 << GPIO_SLEW_SHIFT)
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#define GPIO_ADMODE_SHIFT (19) /* Bit 19: A/D Modes: 0-Analog, 1-Digital */
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#define GPIO_ADMODE_MASK (1 << GPIO_ADMODE_SHIFT)
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# define GPIO_MODE_DIGITAL (0 << GPIO_ADMODE_SHIFT)
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# define GPIO_MODE_ANALOG (1 << GPIO_ADMODE_SHIFT)
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#define GPIO_FILTER_SHIFT (20) /* Bit 20: Filter: 0-Off, 1-ON */
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#define GPIO_FILTER_MASK (1 << GPIO_FILTER_SHIFT)
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# define GPIO_FILTER_OFF (0 << GPIO_FILTER_SHIFT)
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# define GPIO_FILTER_ON (1 << GPIO_FILTER_SHIFT)
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#define GPIO_DACEN (1 << 21) /* Bit 21: DAC: 0-Disabled, 1-Enabled, P0:26 only */
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#define GPIO_I2CMODE_SHIFT (22) /* Bits 22-23: I2C mode */
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#define GPIO_I2CMODE_MASK (3 << GPIO_I2CMODE_SHIFT)
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# define GPIO_I2CHS (1 << 22) /* Bit 22: Filter and Rate Control: 0-Enabled, 1-Disabled */
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# define GPIO_HIDRIVE (1 << 23) /* Bit 23: Current Sink: 0-4mA, 1-20mA P5:2 and P5:3 only,*/
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2013-04-04 01:47:43 +02:00
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/* Pin Function bits: FFFF
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* Only meaningful when the GPIO function is GPIO_PIN
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*/
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2013-04-13 01:48:50 +02:00
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#define GPIO_FUNC_SHIFT (12) /* Bits 12-15: GPIO mode */
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#define GPIO_FUNC_MASK (15 << GPIO_FUNC_SHIFT)
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# define GPIO_INPUT (0 << GPIO_FUNC_SHIFT) /* 0000 GPIO input pin */
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# define GPIO_INTFE (1 << GPIO_FUNC_SHIFT) /* 0001 GPIO interrupt falling edge */
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# define GPIO_INTRE (2 << GPIO_FUNC_SHIFT) /* 0010 GPIO interrupt rising edge */
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# define GPIO_INTBOTH (3 << GPIO_FUNC_SHIFT) /* 0011 GPIO interrupt both edges */
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# define GPIO_OUTPUT (4 << GPIO_FUNC_SHIFT) /* 0100 GPIO outpout pin */
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# define GPIO_ALT1 (5 << GPIO_FUNC_SHIFT) /* 0101 Alternate function 1 */
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# define GPIO_ALT2 (6 << GPIO_FUNC_SHIFT) /* 0110 Alternate function 2 */
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# define GPIO_ALT3 (7 << GPIO_FUNC_SHIFT) /* 0111 Alternate function 3 */
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# define GPIO_ALT4 (8 << GPIO_FUNC_SHIFT) /* 1000 Alternate function 4 */
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# define GPIO_ALT5 (9 << GPIO_FUNC_SHIFT) /* 1001 Alternate function 5 */
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# define GPIO_ALT6 (10 << GPIO_FUNC_SHIFT) /* 1010 Alternate function 6 */
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# define GPIO_ALT7 (11 << GPIO_FUNC_SHIFT) /* 1011 Alternate function 7 */
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2013-04-13 01:48:50 +02:00
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#define GPIO_EDGE_SHIFT (12) /* Bits 12-13: Interrupt edge bits */
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#define GPIO_EDGE_MASK (3 << GPIO_EDGE_SHIFT)
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#define GPIO_INOUT_MASK GPIO_OUTPUT
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#define GPIO_FE_MASK GPIO_INTFE
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#define GPIO_RE_MASK GPIO_INTRE
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#define GPIO_ISGPIO(ps) ((uint16_t(ps) & GPIO_FUNC_MASK) <= GPIO_OUTPUT)
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#define GPIO_ISALT(ps) ((uint16_t(ps) & GPIO_FUNC_MASK) > GPIO_OUTPUT)
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#define GPIO_ISINPUT(ps) (((ps) & GPIO_FUNC_MASK) == GPIO_INPUT)
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#define GPIO_ISOUTPUT(ps) (((ps) & GPIO_FUNC_MASK) == GPIO_OUTPUT)
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#define GPIO_ISINORINT(ps) (((ps) & GPIO_INOUT_MASK) == 0)
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#define GPIO_ISOUTORALT(ps) (((ps) & GPIO_INOUT_MASK) != 0)
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#define GPIO_ISINTERRUPT(ps) (GPIO_ISOUTPUT(ps) && !GPIO_ISINPUT(ps))
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#define GPIO_ISFE(ps) (((ps) & GPIO_FE_MASK) != 0)
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#define GPIO_ISRE(ps) (((ps) & GPIO_RE_MASK) != 0)
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/* Pin Mode: MM */
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#define GPIO_PUMODE_SHIFT (10) /* Bits 10-11: Pin pull-up mode */
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#define GPIO_PUMODE_MASK (3 << GPIO_PUMODE_SHIFT)
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# define GPIO_FLOAT (0 << GPIO_PUMODE_SHIFT) /* Neither pull-up nor -down */
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# define GPIO_PULLDN (1 << GPIO_PUMODE_SHIFT) /* Pull-down resistor enabled */
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# define GPIO_PULLUP (2 << GPIO_PUMODE_SHIFT) /* Pull-up resistor enabled */
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# define GPIO_REPEATER (3 << GPIO_PUMODE_SHIFT) /* Repeater mode enabled */
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/* Open drain: O */
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#define GPIO_OPEN_DRAIN (1 << 9) /* Bit 9: Open drain mode */
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/* Initial value: V */
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#define GPIO_VALUE (1 << 8) /* Bit 8: Initial GPIO output value */
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# define GPIO_VALUE_ONE GPIO_VALUE
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# define GPIO_VALUE_ZERO (0)
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/* Port number: PPP (0-5) */
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#define GPIO_PORT_SHIFT (5) /* Bit 5-7: Port number */
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#define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT)
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# define GPIO_PORT0 (0 << GPIO_PORT_SHIFT)
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# define GPIO_PORT1 (1 << GPIO_PORT_SHIFT)
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# define GPIO_PORT2 (2 << GPIO_PORT_SHIFT)
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# define GPIO_PORT3 (3 << GPIO_PORT_SHIFT)
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# define GPIO_PORT4 (4 << GPIO_PORT_SHIFT)
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# define GPIO_PORT5 (5 << GPIO_PORT_SHIFT)
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#define GPIO_NPORTS 6
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/* Pin number: NNNNN (0-31) */
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2013-04-13 01:48:50 +02:00
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#define GPIO_PIN_SHIFT 0 /* Bits 0-4: GPIO number: 0-31 */
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#define GPIO_PIN_MASK (31 << GPIO_PIN_SHIFT)
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# define GPIO_PIN0 (0 << GPIO_PIN_SHIFT)
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# define GPIO_PIN1 (1 << GPIO_PIN_SHIFT)
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# define GPIO_PIN2 (2 << GPIO_PIN_SHIFT)
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# define GPIO_PIN3 (3 << GPIO_PIN_SHIFT)
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# define GPIO_PIN4 (4 << GPIO_PIN_SHIFT)
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# define GPIO_PIN5 (5 << GPIO_PIN_SHIFT)
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# define GPIO_PIN6 (6 << GPIO_PIN_SHIFT)
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# define GPIO_PIN7 (7 << GPIO_PIN_SHIFT)
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# define GPIO_PIN8 (8 << GPIO_PIN_SHIFT)
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# define GPIO_PIN9 (9 << GPIO_PIN_SHIFT)
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# define GPIO_PIN10 (10 << GPIO_PIN_SHIFT)
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# define GPIO_PIN11 (11 << GPIO_PIN_SHIFT)
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# define GPIO_PIN12 (12 << GPIO_PIN_SHIFT)
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# define GPIO_PIN13 (13 << GPIO_PIN_SHIFT)
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# define GPIO_PIN14 (14 << GPIO_PIN_SHIFT)
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# define GPIO_PIN15 (15 << GPIO_PIN_SHIFT)
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# define GPIO_PIN16 (16 << GPIO_PIN_SHIFT)
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# define GPIO_PIN17 (17 << GPIO_PIN_SHIFT)
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# define GPIO_PIN18 (18 << GPIO_PIN_SHIFT)
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# define GPIO_PIN19 (19 << GPIO_PIN_SHIFT)
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# define GPIO_PIN20 (20 << GPIO_PIN_SHIFT)
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# define GPIO_PIN21 (21 << GPIO_PIN_SHIFT)
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# define GPIO_PIN22 (22 << GPIO_PIN_SHIFT)
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# define GPIO_PIN23 (23 << GPIO_PIN_SHIFT)
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# define GPIO_PIN24 (24 << GPIO_PIN_SHIFT)
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# define GPIO_PIN25 (25 << GPIO_PIN_SHIFT)
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# define GPIO_PIN26 (26 << GPIO_PIN_SHIFT)
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# define GPIO_PIN27 (27 << GPIO_PIN_SHIFT)
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# define GPIO_PIN28 (28 << GPIO_PIN_SHIFT)
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# define GPIO_PIN29 (29 << GPIO_PIN_SHIFT)
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# define GPIO_PIN30 (30 << GPIO_PIN_SHIFT)
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# define GPIO_PIN31 (31 << GPIO_PIN_SHIFT)
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/************************************************************************************
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* Public Types
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************************************************************************************/
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typedef uint32_t lpc17_pinset_t;
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_LPC17XX_LPC178X_GPIO_H */
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