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Commit 8b2391b3 authored by patacongo's avatar patacongo
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Add skeleton of GPIO utilities 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2999 42af7a65-404d-4744-a932-0658087f49c3
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arch/avr/src/at91uc3/Make.defs
+ 2
− 2
View file @ 8b2391b3
......@@ -51,8 +51,8 @@ CMN_CSRCS = up_assert.c up_allocateheap.c up_blocktask.c up_copystate.c \
# Required AT91UC3 files
CHIP_ASRCS =
CHIP_CSRCS = at91uc3_clkinit.c at91uc3_irq.c at91uc3_lowconsole.c \
at91uc3_lowinit.c at91uc3_serial.c
CHIP_CSRCS = at91uc3_clkinit.c at91uc3_gpio.c at91uc3_irq.c \
at91uc3_lowconsole.c at91uc3_lowinit.c at91uc3_serial.c
# Configuration-dependent AT91UC3 files
......
arch/avr/src/at91uc3/at91uc3_gpio.c 0 → 100644
+ 115
− 0
View file @ 8b2391b3
/**************************************************************************
* arch/avr/src/at91uc3/at91uc3_gpio.c
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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.
*
**************************************************************************/
/**************************************************************************
* Included Files
**************************************************************************/
#include <nuttx/config.h>
#include <errno.h>
#include "at91uc3_config.h"
#include "up_internal.h"
#include "at91uc3_internal.h"
/**************************************************************************
* Private Definitions
**************************************************************************/
/**************************************************************************
* Private Types
**************************************************************************/
/**************************************************************************
* Private Function Prototypes
**************************************************************************/
/**************************************************************************
* Global Variables
**************************************************************************/
/**************************************************************************
* Private Variables
**************************************************************************/
/**************************************************************************
* Private Functions
**************************************************************************/
/**************************************************************************
* Public Functions
**************************************************************************/
/************************************************************************************
* Name: at91uc3_configgpio
*
* Description:
* Configure a GPIO pin based on bit-encoded description of the pin.
*
************************************************************************************/
int at91uc3_configgpio(uint32_t cfgset)
{
#warning "Not Implemented"
return -ENOSYS;
}
/************************************************************************************
* Name: at91uc3_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
************************************************************************************/
void at91uc3_gpiowrite(uint32_t pinset, bool value)
{
#warning "Not Implemented"
}
/************************************************************************************
* Name: at91uc3_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
************************************************************************************/
bool at91uc3_gpioread(uint32_t pinset)
{
#warning "Not Implemented"
return false;
}
arch/avr/src/at91uc3/at91uc3_internal.h
+ 128
− 5
View file @ 8b2391b3
......@@ -49,16 +49,103 @@
* Pre-processor Definitions
************************************************************************************/
/* Bit-encoded input to at91uc3_configgpio() ****************************************/
/* 32-bit Encoding:
* xxxx xxxx xxxx xxxF MMIU VXXG PPPB BBBB
*/
/* Glitch Filter Enable:
* .... .... .... ...F .... .... .... ....
*/
#define GPIO_GLITCH (1 << 16) /* Bit 16: Glitch filter enable */
/* Interrupt modes (valid only if GPIO_INTR==1)
* .... .... .... .... MM.. .... .... ....
*/
#define GPIO_INTMODE_SHIFT (14) /* Bits 14-15: Interrupt mode */
#define GPIO_INTMODE_MASK (3 << GPIO_INTMODE_SHIFT)
# define GPIO_INTMODE_BOTH (0 << GPIO_INTMODE_SHIFT)
# define GPIO_INTMODE_RISING (1 << GPIO_INTMODE_SHIFT)
# define GPIO_INTMODE_FALLING (2 << GPIO_INTMODE_SHIFT)
/* Interrupt enable
* .... .... .... .... ..I. .... .... ....
*/
#define GPIO_INTR (1 << 13) /* Bit 13: Interrupt enable */
/* Pull-up enable
* .... .... .... .... ...U .... .... ....
*/
#define GPIO_PULLUP (1 << 12) /* Bit 12: Pull-up enable */
/* Output value (Valid only if GPIO_ENABLE==1 and GPIO_OUTPUT==1)
* .... .... .... .... .... V... .... ....
*/
#define GPIO_VALUE (1 << 11) /* Bit 11: Output value */
/* Peripheral MUX setting (valid only if GPIO_PERIPH)
* .... .... .... .... .... .XX. .... ....
*/
#define GPIO_MUX_SHIFT (9) /* Bits 9-10: Peripheral MUX */
#define GPIO_MUX_MASK (3 << GPIO_MUX_SHIFT)
# define GPIO_MUX_0 (0 << GPIO_MUX_SHIFT) /* PMR0=0 PMR1=0 */
# define GPIO_MUX_1 (1 << GPIO_MUX_SHIFT) /* PMR0=1 PMR1=0 */
# define GPIO_MUX_2 (2 << GPIO_MUX_SHIFT) /* PMR0=0 PMR1=1 */
# define GPIO_MUX_3 (3 << GPIO_MUX_SHIFT) /* PMR0=1 PMR1=1 */
/* GPIO Enable (1) or Peripheral Enable (0)
* .... .... .... .... .... ...G .... ....
*/
#define GPIO_ENABLE (1 << 8) /* Bit 8: GPIO enable */
#define GPIO_PERIPH (0)
/* Port Number
* .... .... .... .... .... .... PPP. ....
*/
#define GPIO_PORT_SHIFT (5) /* Bits 5-7: Port number */
#define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT)
/* Pin number:
* .... .... .... .... .... .... ...B BBBB
*/
#define GPIO_PIN_SHIFT (0) /* Bits 0-4: Port number */
#define GPIO_PIN_MASK (0x1f << GPIO_PIN_SHIFT)
/************************************************************************************
* Public Types
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Inline Functions
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Functions
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
......@@ -69,7 +156,7 @@
*
************************************************************************************/
extern void up_clkinitialize(void);
EXTERN void up_clkinitialize(void);
/******************************************************************************
* Name: usart_reset
......@@ -79,7 +166,7 @@ extern void up_clkinitialize(void);
*
******************************************************************************/
extern void usart_reset(uintptr_t usart_base);
EXTERN void usart_reset(uintptr_t usart_base);
/******************************************************************************
* Name: usart_configure
......@@ -102,7 +189,7 @@ void usart_configure(uintptr_t usart_base, uint32_t baud, unsigned int parity,
*
************************************************************************************/
extern void up_consoleinit(void);
EXTERN void up_consoleinit(void);
/************************************************************************************
* Name: up_boardinit
......@@ -113,7 +200,43 @@ extern void up_consoleinit(void);
*
************************************************************************************/
extern void up_boardinitialize(void);
EXTERN void up_boardinitialize(void);
/************************************************************************************
* Name: at91uc3_configgpio
*
* Description:
* Configure a GPIO pin based on bit-encoded description of the pin.
*
************************************************************************************/
EXTERN int at91uc3_configgpio(uint32_t cfgset);
/************************************************************************************
* Name: at91uc3_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
************************************************************************************/
EXTERN void at91uc3_gpiowrite(uint32_t pinset, bool value);
/************************************************************************************
* Name: at91uc3_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
************************************************************************************/
EXTERN bool at91uc3_gpioread(uint32_t pinset);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_AVR_SRC_AVR32_AT91UC3_INTERNAL_H */
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