271 lines
11 KiB
C
271 lines
11 KiB
C
|
/************************************************************************************
|
||
|
|
* arch/arm/src/stm32/stm32_internal.h
|
||
|
|
*
|
||
|
|
* Copyright (C) 2009 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.
|
||
|
|
*
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
#ifndef __ARCH_ARM_SRC_STM32_STM32_INTERNAL_H
|
||
|
|
#define __ARCH_ARM_SRC_STM32_STM32_INTERNAL_H
|
||
|
|
|
||
|
|
/************************************************************************************
|
||
|
|
* Included Files
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
#include <nuttx/config.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#include "up_internal.h"
|
||
|
|
#include "chip.h"
|
||
|
|
|
||
|
|
/************************************************************************************
|
||
|
|
* Definitions
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
/* Bit-encoded input to stm32_configgpio() *******************************************/
|
||
|
|
|
||
|
|
/* Encoding:
|
||
|
|
* FFFn nPPP IIIn nnnn nnnn nnnn VPPP BBBB
|
||
|
|
*
|
||
|
|
* These bits set the primary function of the pin:
|
||
|
|
* FFFn nnnn nnnn nnnn nnnn nnnn nnnn nnnn
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GPIO_FUNC_SHIFT 29 /* Bit 31-29: GPIO function */
|
||
|
|
#define GPIO_FUNC_MASK (7 << GPIO_FUNC_SHIFT)
|
||
|
|
#define GPIO_FUNC_INFLOAT (0 << GPIO_FUNC_SHIFT) /* Input floating */
|
||
|
|
#define GPIO_FUNC_INPULLUP (1 << GPIO_FUNC_SHIFT) /* Input pull-up */
|
||
|
|
#define GPIO_FUNC_INPULLDWN (2 << GPIO_FUNC_SHIFT) /* Input pull-down */
|
||
|
|
#define GPIO_FUNC_ANALOGIN (3 << GPIO_FUNC_SHIFT) /* Analog input */
|
||
|
|
#define GPIO_FUNC_OUTOD (4 << GPIO_FUNC_SHIFT) /* Output open-drain */
|
||
|
|
#define GPIO_FUNC_OUTPP (5 << GPIO_FUNC_SHIFT) /* Output push-pull */
|
||
|
|
#define GPIO_FUNC_AFPP (6 << GPIO_FUNC_SHIFT) /* Altnernate function push-pull */
|
||
|
|
#define GPIO_FUNC_AFOD (7 << GPIO_FUNC_SHIFT) /* Altnernate function open-drain */
|
||
|
|
|
||
|
|
/* If the pin is an GPIO digital output, then this identifies the initial output value:
|
||
|
|
* nnnn nnnn nnnn nnnn nnnn nnnn Vnnn nnnn
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GPIO_VALUE_SHIFT 7 /* Bit 7: If output, inital value of output */
|
||
|
|
#define GPIO_VALUE_MASK (1 << GPIO_VALUE_SHIFT)
|
||
|
|
#define GPIO_VALUE_ZERO (0 << GPIO_VALUE_SHIFT) /* Initial value is zero */
|
||
|
|
#define GPIO_VALUE_ONE (1 << GPIO_VALUE_SHIFT) /* Initial value is one */
|
||
|
|
|
||
|
|
/* This identifies the GPIO port:
|
||
|
|
* nnnn nnnn nnnn nnnn nnnn nnnn nPPP nnnn
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GPIO_PORT_SHIFT 4 /* Bit 4-6: Port number */
|
||
|
|
#define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT)
|
||
|
|
#define GPIO_PORTA (0 << GPIO_PORT_SHIFT) /* GPIOA */
|
||
|
|
#define GPIO_PORTB (1 << GPIO_PORT_SHIFT) /* GPIOB */
|
||
|
|
#define GPIO_PORTC (2 << GPIO_PORT_SHIFT) /* GPIOC */
|
||
|
|
#define GPIO_PORTD (3 << GPIO_PORT_SHIFT) /* GPIOD */
|
||
|
|
#define GPIO_PORTE (4 << GPIO_PORT_SHIFT) /* GPIOE */
|
||
|
|
#define GPIO_PORTF (5 << GPIO_PORT_SHIFT) /* GPIOF */
|
||
|
|
#define GPIO_PORTG (6 << GPIO_PORT_SHIFT) /* GPIOG */
|
||
|
|
|
||
|
|
/* This identifies the bit in the port:
|
||
|
|
* nnnn nnnn nnnn nnnn nnnn nnnn nnnn BBBB
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GPIO_NUMBER_SHIFT 0 /* Bits 0-3: GPIO number: 0-15 */
|
||
|
|
#define GPIO_NUMBER_MASK (15 << GPIO_NUMBER_SHIFT)
|
||
|
|
|
||
|
|
/************************************************************************************
|
||
|
|
* Public Types
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************************
|
||
|
|
* Inline Functions
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
/************************************************************************************
|
||
|
|
* Public Data
|
||
|
|
************************************************************************************/
|
||
|
|
|
||
|
|
#undef EXTERN
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
#define EXTERN extern "C"
|
||
|
|
extern "C" {
|
||
|
|
#else
|
||
|
|
#define EXTERN extern
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Public Function Prototypes
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: up_lowsetup
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Called at the very beginning of _start. Performs low level initialization.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN void up_lowsetup(void);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: stm32_clockconfig
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Called to change to new clock based on desired rcc and rcc2 settings.
|
||
|
|
* This is use to set up the initial clocking but can be used later to
|
||
|
|
* support slow clocked, low power consumption modes.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN void stm32_clockconfig(uint32 newrcc, uint32 newrcc2);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: up_clockconfig
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Called early in the bootsequence (before .data and .bss are available)
|
||
|
|
* in order to configure initial clocking.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN void up_clockconfig(void);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: stm32_configgpio
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Configure a GPIO pin based on bit-encoded description of the pin.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN int stm32_configgpio(uint32 cfgset);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: stm32_gpiowrite
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Write one or zero to the selected GPIO pin
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN void stm32_gpiowrite(uint32 pinset, boolean value);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: stm32_gpioread
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Read one or zero from the selected GPIO pin
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN boolean stm32_gpioread(uint32 pinset, boolean value);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Function: stm32_dumpgpio
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Dump all GPIO registers associated with the provided base address
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN int stm32_dumpgpio(uint32 pinset, const char *msg);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: gpio_irqinitialize
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Initialize all vectors to the unexpected interrupt handler
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
EXTERN int weak_function gpio_irqinitialize(void);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Function: stm32_ethinitialize
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Initialize the Ethernet driver for one interface. If the STM32 chip
|
||
|
|
* supports multiple Ethernet controllers, then bould specific logic
|
||
|
|
* must implement up_netinitialize() and call this function to initialize
|
||
|
|
* the desiresed interfaces.
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
* Returned Value:
|
||
|
|
* OK on success; Negated errno on failure.
|
||
|
|
*
|
||
|
|
* Assumptions:
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#if STM32_NTHERNET > 1
|
||
|
|
EXTERN int stm32_ethinitialize(int intf);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* The external functions, stm32_spi1/2select and stm32_spi1/2status must be
|
||
|
|
* provided by board-specific logic. They are implementations of the select
|
||
|
|
* and status methods of the SPI interface defined by struct spi_ops_s (see
|
||
|
|
* include/nuttx/spi.h). All other methods (including up_spiinitialize())
|
||
|
|
* are provided by common STM32 logic. To use this common SPI logic on your
|
||
|
|
* board:
|
||
|
|
*
|
||
|
|
* 1. Provide logic in stm32_boardinitialize() to configure SPI chip select
|
||
|
|
* pins.
|
||
|
|
* 2. Provide stm32_spi1/2select() and stm32_spi1/2status() functions in your
|
||
|
|
* board-specific logic. These functions will perform chip selection and
|
||
|
|
* status operations using GPIOs in the way your board is configured.
|
||
|
|
* 3. Add a calls to up_spiinitialize() in your low level application
|
||
|
|
* initialization logic
|
||
|
|
* 4. The handle returned by up_spiinitialize() may then be used to bind the
|
||
|
|
* SPI driver to higher level logic (e.g., calling
|
||
|
|
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
|
||
|
|
* the SPI MMC/SD driver).
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
struct spi_dev_s;
|
||
|
|
enum spi_dev_e;
|
||
|
|
EXTERN void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, boolean selected);
|
||
|
|
EXTERN ubyte stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
|
||
|
|
EXTERN void stm32_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, boolean selected);
|
||
|
|
EXTERN ubyte stm32_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
|
||
|
|
|
||
|
|
#undef EXTERN
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __ASSEMBLY__ */
|
||
|
|
#endif /* __ARCH_ARM_SRC_STM32_STM32_INTERNAL_H */
|