XMC4xxx: Add framework and definitions for GPIO support
This commit is contained in:
Gregory Nutt
parent
042b33414a
commit
d2d54b4ae7
@ -1,7 +1,7 @@
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/************************************************************************************
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* arch/arm/src/xmc4/chip/xmc4_ports.h
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*
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* Copyright (C /*2017 Gregory Nutt. All rights reserved.
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Reference: XMC4500 Reference Manual V1.5 2014-07 Microcontrollers.
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@ -27,17 +27,17 @@
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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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* 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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* 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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* May include some logic from sample code provided by Infineon:
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*
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* Copyright (C /*2011-2015 Infineon Technologies AG. All rights reserved.
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* Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
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*
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* Infineon Technologies AG (Infineon /*is supplying this software for use with
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* Infineon Technologies AG (Infineon) is supplying this software for use with
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* Infineon's microcontrollers. This file can be freely distributed within
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* development tools that are supporting such microcontrollers.
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*
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@ -258,18 +258,31 @@
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#define OMR_PR(n) (1 << ((n) + 16))
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/* Basic port input/output field values */
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/* Director Input */
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/* Direct Input */
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#define IOCR_NOPULL 0 /* No internal pull device active */
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#define IOCR_PULLDOWN 1 /* Internal pull-down device active */
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#define IOCR_PULLUP 2 /* Internal pull-down device active */
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#define IOCR_CONT 3 /* No internal pull device active; Pn_OUTx
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#define IOCR_INPUT_NOPULL 0 /* No internal pull device active */
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#define IOCR_INPUT_PULLDOWN 1 /* Internal pull-down device active */
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#define IOCR_INPUT_PULLUP 2 /* Internal pull-down device active */
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#define IOCR_INPUT_CONT 3 /* No internal pull device active; Pn_OUTx
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* continuously samples the input value */
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/* Any of the above may be OR'ed with */
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/* Any of the above input configurations may be OR'ed with */
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/* Inverted Input */
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#define IOCR_INVERT 4 /* Inverted input */
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#define IOCR_INPUT_INVERT 4 /* Inverted input modifier */
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/* Push-pull Output (direct input) */
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#define IOCR_OUTPUT 16 /* General-purpose output */
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#define IOCR_OUTPUT_ALT1 17 /* Alternate output function 1 */
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#define IOCR_OUTPUT_ALT2 18 /* Alternate output function 2 */
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#define IOCR_OUTPUT_ALT3 19 /* Alternate output function 3 */
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#define IOCR_OUTPUT_ALT4 20 /* Alternate output function 4 */
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/* Any of the above may be OR'ed with */
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/* Open drain output */
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#define IOCR_OUTPUT_OPENDRAIN 8 /* Output drain output modifier */
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/* Port Input/Output Control Register 0 */
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@ -0,0 +1,98 @@
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/****************************************************************************
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* arch/arm/src/xmc4/xmc4_gpio.c
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*
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* Copyright (C) 2017 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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <arch/board/board.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/arch.h>
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#include "up_arch.h"
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#include "up_internal.h"
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#include "chip/xmc4_ports.h"
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#include "xmc4_gpio.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: xmc4_gpio_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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* 'pincconfig'.
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*
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****************************************************************************/
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int xmc4_gpio_config(gpioconfig_t pinconfig)
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{
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#warning Missing logic
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return -EINVAL;
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}
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/****************************************************************************
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* Name: xmc4_gpio_write
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*
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* Description:
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* Write one or zero to the PORT pin selected by 'pinconfig'
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*
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****************************************************************************/
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void xmc4_gpio_write(gpioconfig_t pinconfig, bool value)
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{
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#warning Missing logic
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}
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/****************************************************************************
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* Name: xmc4_gpio_read
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*
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* Description:
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* Read one or zero from the PORT pin selected by 'pinconfig'
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*
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****************************************************************************/
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bool xmc4_gpio_read(gpioconfig_t pinconfig)
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{
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#warning Missing logic
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return false;
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}
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@ -0,0 +1,222 @@
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/****************************************************************************
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* arch/arm/src/xmc4/xmc4_gpio.h
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*
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* Copyright (C) 2017 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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "chip/xmc4_ports.h"
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/****************************************************************************
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* Preprocessor Definitions
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****************************************************************************/
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/* 32-bit GIO encoding:
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*
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* .... TTTT TMDD DCC. .... .... PPPP BBBB
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*/
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/* This identifies the GPIO pint type:
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*
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* .... TTTT T... .... .... .... .... ....
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*/
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#define GPIO_PINTYPE_SHIFT (23) /* Bits 23-27: Pin type */
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#define GPIO_PINTYPE_MASK (31 << GPIO_PINTYPE_SHIFT)
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/* See chip/xmc4_ports.h for the IOCR definitions */
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/* Direct input */
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# define GPIO_INPUT_NOPULL (IOCR_INPUT_NOPULL << GPIO_PINTYPE_SHIFT)
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# define GPIO_INPUT_PULLDOWN (IOCR_INPUT_PULLDOWN << GPIO_PINTYPE_SHIFT)
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# define GPIO_INPUT_PULLUP (IOCR_INPUT_PULLUP << GPIO_PINTYPE_SHIFT)
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# define GPIO_INPUT_CONT (IOCR_INPUT_CONT << GPIO_PINTYPE_SHIFT)
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/* Push-pull Output (direct input) */
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# define GPIO_OUTPUT (IOCR_OUTPUT << GPIO_PINTYPE_SHIFT)
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# define GPIO_OUTPUT_ALT1 (IOCR_OUTPUT_ALT1 << GPIO_PINTYPE_SHIFT)
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# define GPIO_OUTPUT_ALT2 (IOCR_OUTPUT_ALT2 << GPIO_PINTYPE_SHIFT)
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# define GPIO_OUTPUT_ALT3 (IOCR_OUTPUT_ALT3 << GPIO_PINTYPE_SHIFT)
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# define GPIO_OUTPUT_ALT4 (IOCR_OUTPUT_ALT4 << GPIO_PINTYPE_SHIFT)
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# define _GPIO_OUTPUT_BIT (16 << GPIO_PINTYPE_SHIFT)
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# define GPIO_ISINPUT(p) (((p) & _GPIO_OUTPUT_BIT) != 0)
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# define GPIO_ISOUTPUT(p) (((p) & _GPIO_OUTPUT_BIT) == 0)
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/* Pin type modifier:
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*
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* .... .... .M.. .... .... .... .... ....
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*/
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#define GPIO_INPUT_INVERT (1 << 22) /* Inverted input modifier */
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#define GPIOS_OUTPUT_OPENDRAIN (1 << 22) /* Output drain output modifier */
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/* Pad driver strength:
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*
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* .... .... ..DD D... .... .... .... ....
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*/
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#define GPIO_PADTYPE_SHIFT (19) /* Bits 19-21: Pad driver strength */
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#define GPIO_PADTYPE_MASK (7 << GPIO_PADTYPE_SHIFT)
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/* See chip/xmc4_ports.h for the PDR definitions */
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/* Pad class A1: */
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# define GPIO_PADA1_MEDIUM (PDR_PADA1_MEDIUM << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA1_WEAK (PDR_PADA1_WEAK << GPIO_PADTYPE_SHIFT)
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/* Pad class A1+: */
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# define GPIO_PADA1P_STRONGSOFT (PDR_PADA1P_STRONGSOFT << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA1P_STRONGSLOW (PDR_PADA1P_STRONGSLOW << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA1P_MEDIUM (PDR_PADA1P_MEDIUM << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA1P_WEAK (PDR_PADA1P_WEAK << GPIO_PADTYPE_SHIFT)
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/* Pad class A2: */
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# define GPIO_PADA2_STRONGSHARP (PDR_PADA2_STRONGSHARP << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA2_STRONGMEDIUM (PDR_PADA2_STRONGMEDIUM << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA2_STRONGSOFT (PDR_PADA2_STRONGSOFT << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA2_MEDIUM (PDR_PADA2_MEDIUM << GPIO_PADTYPE_SHIFT)
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# define GPIO_PADA2_WEAK (PDR_PADA2_WEAK << GPIO_PADTYPE_SHIFT)
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/* Pin control:
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*
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* .... .... .... .CC. .... .... .... ....
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*/
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#define GPIO_PINCTRL_SHIFT (17) /* Bits 17-18: Pad driver strength */
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#define GPIO_PINCTRL_MASK (3 << GPIO_PINCTRL_SHIFT)
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/* See chip/xmc4_ports.h for the PDR definitions */
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# define GPIO_PINCTRL_SOFTWARE (HWSEL_SOFTWARE << GPIO_PINCTRL_SHIFT)
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# define GPIO_PINCTRL_OVERRIDE0 (HWSEL_OVERRIDE0 << GPIO_PINCTRL_SHIFT)
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# define GPIO_PINCTRL_OVERRIDE1 (HWSEL_OVERRIDE1 << GPIO_PINCTRL_SHIFT)
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/* This identifies the GPIO port:
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*
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* .... ... .... .... .... .... PPPP ....
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*/
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#define GPIO_PORT_SHIFT (4) /* Bit 4-7: 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_PORT6 (6 << GPIO_PORT_SHIFT)
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# define GPIO_PORT7 (7 << GPIO_PORT_SHIFT)
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# define GPIO_PORT8 (8 << GPIO_PORT_SHIFT)
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# define GPIO_PORT9 (9 << GPIO_PORT_SHIFT)
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# define GPIO_PORT14 (14 << GPIO_PORT_SHIFT)
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# define GPIO_PORT15 (15 << GPIO_PORT_SHIFT)
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/* This identifies the bit in the port:
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*
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* ... ..... .... .... .... .... .... BBBB
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*/
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#define GPIO_PIN_SHIFT (0) /* Bits 0-3: GPIO pin: 0-15 */
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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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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This is a type large enought to hold all pin configuration bits. */
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typedef uint32_t gpioconfig_t;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: xmc4_gpio_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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* 'pincconfig'.
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*
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****************************************************************************/
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int xmc4_gpio_config(gpioconfig_t pinconfig);
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/****************************************************************************
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* Name: xmc4_gpio_write
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*
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* Description:
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* Write one or zero to the PORT pin selected by 'pinconfig'
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*
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****************************************************************************/
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void xmc4_gpio_write(gpioconfig_t pinconfig, bool value);
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/****************************************************************************
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* Name: xmc4_gpio_read
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*
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* Description:
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* Read one or zero from the PORT pin selected by 'pinconfig'
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*
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****************************************************************************/
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bool xmc4_gpio_read(gpioconfig_t pinconfig);
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@ -48,7 +48,7 @@
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#include "up_arch.h"
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#include "xmc4_config.h"
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#include "chip/xmc4_uart.h"
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#include "chip/xmc4_usic.h"
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#include "chip/xmc4_pinmux.h"
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/****************************************************************************
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@ -59,7 +59,7 @@
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#include "xmc4_config.h"
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#include "chip.h"
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#include "chip/xmc4_uart.h"
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#include "chip/xmc4_usic.h"
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/****************************************************************************
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* Pre-processor Definitions
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@ -46,11 +46,13 @@
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#include <nuttx/init.h>
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#include <arch/board/board.h>
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#include "nvic.h"
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#include "up_arch.h"
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#include "up_internal.h"
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#include "chip/xmc4_flash.h"
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#include "xmc4_userspace.h"
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#include "xmc4_start.h"
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#ifdef CONFIG_ARCH_FPU
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# include "nvic.h"
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