285 lines
12 KiB
C
285 lines
12 KiB
C
/****************************************************************************
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* arch/arm/src/lpc43xx/lpc43_pinconfig.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_PINCONFIG_H
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#define __ARCH_ARM_SRC_LPC43XX_LPC43_PINCONFIG_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/* Include the chip capabilities and SCU definitions file */
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#include "chip.h"
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#include "hardware/lpc43_scu.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Each configurable pin can be individually configured by software in
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* several modes. The following definitions provide the bit encoding that
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* is used to define a pin configuration.
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* Note that these pins do not corresponding GPIO ports and pins.
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*
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* 21-bit Encoding:
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* FFFU UDDI GWSS SSSP PPPP
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*/
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/* Alternate function number:
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* FFF. .... .... .... ....
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*/
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#define PINCONF_FUNC_SHIFT (17) /* Bits 16-18: Alternate function number */
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#define PINCONF_FUNC_MASK (7 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC(n) ((n) << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC0 (0 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC1 (1 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC2 (2 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC3 (3 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC4 (4 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC5 (5 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC6 (6 << PINCONF_FUNC_SHIFT)
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# define PINCONF_FUNC7 (7 << PINCONF_FUNC_SHIFT)
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/* Pull-up/down resisters. These selections are available for all pins but
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* may not make sense for all pins. NOTE: that both pull up and down is
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* not precluded.
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* ...U U... .... .... ....
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*/
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#define PINCONF_PULLUP (1 << 16) /* Bit 16: 1=Pull-up */
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#define PINCONF_PULLDOWN (1 << 15) /* Bit 15: 1=Pull-down */
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#define PINCONF_FLOAT (0) /* Bit 15-16=0 if neither */
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#define PINCONF_IS_PULLUP(p) (((p) & PINCONF_PULLUP) != 0)
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#define PINCONF_IS_PULLDOWN(p) (((p) & PINCONF_PULLDOWN) != 0)
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#define PINCONF_IS_FLOAT(p) (((p) & (PINCONF_PULLUP|PINCONF_PULLDOWN) == 0)
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/* Drive strength. These selections are available only for high-drive pins
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... .DD. .... .... ....
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*/
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#define PINCONF_DRIVE_SHIFT (13) /* Bits 12-13 = Pin drive strength */
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#define PINCONF_DRIVE_MASK (3 << PINCONF_DRIVE_SHIFT)
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# define PINCONF_DRIVE_NORMAL (0 << PINCONF_DRIVE_SHIFT)
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# define PINCONF_DRIVE_MEDIUM (1 << PINCONF_DRIVE_SHIFT)
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# define PINCONF_DRIVE_HIGH (2 << PINCONF_DRIVE_SHIFT)
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# define PINCONF_DRIVE_ULTRA (3 << PINCONF_DRIVE_SHIFT)
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/* Input buffer enable
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... ...I .... .... ....
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*/
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#define PINCONF_INBUFFER (1 << 12) /* Bit 11: 1=Enabled input buffer */
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#define PINCONF_INBUFFER_ENABLED(p) (((p) & PINCONF_INBUFFER) != 0)
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/* Glitch filter enable
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... .... G... .... ....
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*/
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#define PINCONF_GLITCH (1 << 11) /* Bit 10: 1=Glitch filter enable */
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#define PINCONF_GLITCH_ENABLE(p) (((p) & PINCONF_GLITCH) == 0)
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/* Slew rate
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... .... .W.. .... ....
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*/
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#define PINCONF_SLEW_FAST (1 << 10) /* Bit 9: 1=Alternate function */
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#define PINCONF_SLEW_SLOW (0) /* Bit 9: 0=Normal function */
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#define PINCONF_IS_SLEW_FAST(p) (((p) & PINCONF_SLEW_FAST) != 0)
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#define PINCONF_IS_SLOW_SLOW(p) (((p) & PINCONF_SLEW_FAST) == 0)
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/* Pin configuration sets:
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... .... ..SS SSS. ....
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*/
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#define PINCONF_PINS_SHIFT (5) /* Bits 5-9: Pin set */
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#define PINCONF_PINS_MASK (31 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS0 (0 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS1 (1 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS2 (2 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS3 (3 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS4 (4 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS5 (5 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS6 (6 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS7 (7 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS8 (8 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINS9 (9 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSA (10 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSB (11 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSC (12 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSD (13 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSE (14 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSF (15 << PINCONF_PINS_SHIFT)
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# define PINCONF_PINSG (16 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSH (17 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSI (18 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSJ (19 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSK (20 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSL (21 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSM (22 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSN (23 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSO (24 << PINCONF_PINS_SHIFT) /* SFSCLK0 - SFSCLK3 */
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# define PINCONF_PINSP (25 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSQ (26 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSR (27 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSS (28 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINST (29 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSU (30 << PINCONF_PINS_SHIFT) /* Reserved */
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# define PINCONF_PINSV (31 << PINCONF_PINS_SHIFT) /* Reserved */
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/* Pin numbers:
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*
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* 1111 1111 1100 0000 0000
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* 9876 5432 1098 7654 3210
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* ---- ---- ---- ---- ----
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* .... .... .... ...P PPPP
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*/
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#define PINCONF_PIN_SHIFT (0) /* Bits 0-4: Pin number */
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#define PINCONF_PIN_MASK (31 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_0 (0 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_1 (1 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_2 (2 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_3 (3 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_4 (4 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_5 (5 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_6 (6 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_7 (7 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_8 (8 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_9 (9 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_10 (10 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_11 (11 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_12 (12 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_13 (13 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_14 (14 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_15 (15 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_16 (16 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_17 (17 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_18 (18 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_19 (19 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_20 (20 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_21 (21 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_22 (22 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_23 (23 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_24 (24 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_25 (25 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_26 (26 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_27 (27 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_28 (28 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_29 (29 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_30 (30 << PINCONF_PIN_SHIFT)
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# define PINCONF_PIN_31 (31 << PINCONF_PIN_SHIFT)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __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 Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: lpc43_pin_config
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*
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* Description:
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* Configure a pin based on bit-encoded description of the pin.
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*
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* Input Parameters:
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* 20-bit encoded value describing the pin.
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*
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* Returned Value:
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* OK on success; A negated errno value on failure.
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*
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****************************************************************************/
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int lpc43_pin_config(uint32_t pinconf);
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/****************************************************************************
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* Function: lpc43_pin_dump
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*
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* Description:
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* Dump all pin configuration registers associated with the provided pin
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* configuration
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*
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****************************************************************************/
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#ifdef CONFIG_DEBUG_FEATURES
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int lpc43_pin_dump(uint32_t pinconf, const char *msg);
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#else
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# define lpc43_pin_dump(p,m)
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_PINCONFIG_H */
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