/************************************************************************************
* arch/arm/src/kinetis/kinetis_internal.h
*
* Copyright (C) 2011 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_KINETIS_KINETIS_INTERNAL_H
#define __ARCH_ARM_SRC_KINETIS_KINETIS_INTERNAL_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/irq.h>
#include "up_internal.h"
#include "kinetis_config.h"
#include "chip.h"
#include "kinetis_port.h"
/************************************************************************************
* Definitions
************************************************************************************/
/* Configuration ********************************************************************/
/* Bit-encoded input to kinetis_pinconfig() *****************************************/
/* General form (32-bits, only 22 bits are unused in the encoding):
*
* oooo mmmv iiii ifd- ---- -ppp ---b bbbb
*/
/* Bits 25-31: 7 bits are used to encode the basic pin configuration:
*
* oooo mmm- ---- ---- ---- ---- ---- ----
* oooommm:
* | `--- mmm: mode
* `------- oooo: options (may be combined)
*/
#define _PIN_MODE_SHIFT (25) /* Bits 25-27: Pin mode */
#define _PIN_MODE_MASK (7 << _PIN_MODE_SHIFT)
#define _PIN_OPTIONS_SHIFT (28) /* Bits 28-31: Pin mode options */
#define _PIN_OPTIONS_MASK (15 << _PIN_OPTIONS_SHIFT)
/* Port Modes */
#define _PIN_MODE_ANALOG (0 << _PIN_MODE_SHIFT) /* 000 Pin Disabled (Analog) */
#define _PIN_MODE_GPIO (1 << _PIN_MODE_SHIFT) /* 001 Alternative 1 (GPIO) */
#define _PIN_MODE_ALT2 (2 << _PIN_MODE_SHIFT) /* 010 Alternative 2 */
#define _PIN_MODE_ALT3 (3 << _PIN_MODE_SHIFT) /* 011 Alternative 3 */
#define _PIN_MODE_ALT4 (4 << _PIN_MODE_SHIFT) /* 100 Alternative 4 */
#define _PIN_MODE_ALT5 (5 << _PIN_MODE_SHIFT) /* 101 Alternative 5 */
#define _PIN_MODE_ALT6 (6 << _PIN_MODE_SHIFT) /* 110 Alternative 6 */
#define _PIN_MODE_ALT7 (7 << _PIN_MODE_SHIFT) /* 111 Alternative 7 */
/* Options for all digital modes (Alternatives 1-7). None of the digital
* options apply if the analog mode is selected.
*/
#define _PIN_IO_MASK (1 << _PIN_OPTIONS_SHIFT) /* xxx1 Digital input/output mask */
#define _PIN_INPUT (0 << _PIN_OPTIONS_SHIFT) /* xxx0 Digital input */
#define _PIN_OUTPUT (1 << _PIN_OPTIONS_SHIFT) /* xxx1 Digital output */
#define _PIN_INPUT_PULLMASK (7 << _PIN_OPTIONS_SHIFT) /* x111 Mask for pull-up or -down bits */
#define _PIN_INPUT_PULLDOWN (2 << _PIN_OPTIONS_SHIFT) /* x010 Input with internal pull-down resistor */
#define _PIN_INPUT_PULLUP (6 << _PIN_OPTIONS_SHIFT) /* x110 Input with internal pull-up resistor */
#define _PIN_OUTPUT_SLEW_MASK (3 << _PIN_OPTIONS_SHIFT) /* xx11 Mask to test for slow slew rate */
#define _PIN_OUTPUT_FAST (1 << _PIN_OPTIONS_SHIFT) /* xx01 Output with fast slew rate */
#define _PIN_OUTPUT_SLOW (3 << _PIN_OPTIONS_SHIFT) /* xx11 Output with slow slew rate */
#define _PIN_OUTPUT_OD_MASK (5 << _PIN_OPTIONS_SHIFT) /* x1x1 Mask to test for open drain */
#define _PIN_OUTPUT_OPENDRAIN (5 << _PIN_OPTIONS_SHIFT) /* x1x1 Output with open drain enabled */
#define _PIN_OUTPUT_DRIVE_MASK (9 << _PIN_OPTIONS_SHIFT) /* 1xx1 Mask to test for high drive strengh */
#define _PIN_OUTPUT_LOWDRIVE (1 << _PIN_OPTIONS_SHIFT) /* 0xx1 Output with low drive strength */
#define _PIN_OUTPUT_HIGHDRIVE (9 << _PIN_OPTIONS_SHIFT) /* 1xx1 Output with high drive strength */
/* End-user pin modes and configurations. Notes: (1) None of the digital options
* are available for the analog mode, (2) digital settings may be combined (OR'ed)
* provided that input-only and output-only options are not intermixed.
*/
#define PIN_ANALOG _PIN_MODE_ANALOG
#define GPIO_INPUT (_PIN_MODE_GPIO | _PIN_INPUT)
#define GPIO_PULLDOWN (_PIN_MODE_GPIO | _PIN_INPUT_PULLDOWN)
#define GPIO_PULLUP (_PIN_MODE_GPIO | _PIN_INPUT_PULLUP)
#define GPIO_OUTPUT (_PIN_MODE_GPIO | _PIN_OUTPUT)
#define GPIO_FAST (_PIN_MODE_GPIO | _PIN_OUTPUT_FAST)
#define GPIO_SLOW (_PIN_MODE_GPIO | _PIN_OUTPUT_SLOW)
#define GPIO_OPENDRAIN (_PIN_MODE_GPIO | _PIN_OUTPUT_LOWDRIVE)
#define GPIO_LOWDRIVE (_PIN_MODE_GPIO | _PIN_OUTPUT_OPENDRAIN)
#define GPIO_HIGHDRIVE (_PIN_MODE_GPIO | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT2 _PIN_MODE_ALT2
#define PIN_ALT2_INPUT (_PIN_MODE_ALT2 | _PIN_INPUT)
#define PIN_ALT2_PULLDOWN (_PIN_MODE_ALT2 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT2_PULLUP (_PIN_MODE_ALT2 | _PIN_INPUT_PULLUP)
#define PIN_ALT2_OUTPUT (_PIN_MODE_ALT2 | _PIN_OUTPUT)
#define PIN_ALT2_FAST (_PIN_MODE_ALT2 | _PIN_OUTPUT_FAST)
#define PIN_ALT2_SLOW (_PIN_MODE_ALT2 | _PIN_OUTPUT_SLOW)
#define PIN_ALT2_OPENDRAIN (_PIN_MODE_ALT2 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT2_LOWDRIVE (_PIN_MODE_ALT2 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT2_HIGHDRIVE (_PIN_MODE_ALT2 | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT3 _PIN_MODE_ALT3
#define PIN_ALT3_INPUT (_PIN_MODE_ALT3 | _PIN_INPUT)
#define PIN_ALT3_PULLDOWN (_PIN_MODE_ALT3 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT3_PULLUP (_PIN_MODE_ALT3 | _PIN_INPUT_PULLUP)
#define PIN_ALT3_OUTPUT (_PIN_MODE_ALT3 | _PIN_OUTPUT)
#define PIN_ALT3_FAST (_PIN_MODE_ALT3 | _PIN_OUTPUT_FAST)
#define PIN_ALT3_SLOW (_PIN_MODE_ALT3 | _PIN_OUTPUT_SLOW)
#define PIN_ALT3_OPENDRAIN (_PIN_MODE_ALT3 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT3_LOWDRIVE (_PIN_MODE_ALT3 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT3_HIGHDRIVE (_PIN_MODE_ALT3 | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT4 _PIN_MODE_ALT4
#define PIN_ALT4_INPUT (_PIN_MODE_ALT4 | _PIN_INPUT)
#define PIN_ALT4_PULLDOWN (_PIN_MODE_ALT4 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT4_PULLUP (_PIN_MODE_ALT4 | _PIN_INPUT_PULLUP)
#define PIN_ALT4_OUTPUT (_PIN_MODE_ALT4 | _PIN_OUTPUT)
#define PIN_ALT4_FAST (_PIN_MODE_ALT4 | _PIN_OUTPUT_FAST)
#define PIN_ALT4_SLOW (_PIN_MODE_ALT4 | _PIN_OUTPUT_SLOW)
#define PIN_ALT4_OPENDRAIN (_PIN_MODE_ALT4 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT4_LOWDRIVE (_PIN_MODE_ALT4 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT4_HIGHDRIVE (_PIN_MODE_ALT4 | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT5 _PIN_MODE_ALT5
#define PIN_ALT5_INPUT (_PIN_MODE_ALT5 | _PIN_INPUT)
#define PIN_ALT5_PULLDOWN (_PIN_MODE_ALT5 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT5_PULLUP (_PIN_MODE_ALT5 | _PIN_INPUT_PULLUP)
#define PIN_ALT5_OUTPUT (_PIN_MODE_ALT5 | _PIN_OUTPUT)
#define PIN_ALT5_FAST (_PIN_MODE_ALT5 | _PIN_OUTPUT_FAST)
#define PIN_ALT5_SLOW (_PIN_MODE_ALT5 | _PIN_OUTPUT_SLOW)
#define PIN_ALT5_OPENDRAIN (_PIN_MODE_ALT5 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT5_LOWDRIVE (_PIN_MODE_ALT5 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT5_HIGHDRIVE (_PIN_MODE_ALT5 | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT6 _PIN_MODE_ALT6
#define PIN_ALT6_INPUT (_PIN_MODE_ALT6 | _PIN_INPUT)
#define PIN_ALT6_PULLDOWN (_PIN_MODE_ALT6 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT6_PULLUP (_PIN_MODE_ALT6 | _PIN_INPUT_PULLUP)
#define PIN_ALT6_OUTPUT (_PIN_MODE_ALT6 | _PIN_OUTPUT)
#define PIN_ALT6_FAST (_PIN_MODE_ALT6 | _PIN_OUTPUT_FAST)
#define PIN_ALT6_SLOW (_PIN_MODE_ALT6 | _PIN_OUTPUT_SLOW)
#define PIN_ALT6_OPENDRAIN (_PIN_MODE_ALT6 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT6_LOWDRIVE (_PIN_MODE_ALT6 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT6_HIGHDRIVE (_PIN_MODE_ALT6 | _PIN_OUTPUT_HIGHDRIVE)
#define PIN_ALT7 _PIN_MODE_ALT7
#define PIN_ALT7_INPUT (_PIN_MODE_ALT7 | _PIN_INPUT)
#define PIN_ALT7_PULLDOWN (_PIN_MODE_ALT7 | _PIN_INPUT_PULLDOWN)
#define PIN_ALT7_PULLUP (_PIN_MODE_ALT7 | _PIN_INPUT_PULLUP)
#define PIN_ALT7_OUTPUT (_PIN_MODE_ALT7 | _PIN_OUTPUT)
#define PIN_ALT7_FAST (_PIN_MODE_ALT7 | _PIN_OUTPUT_FAST)
#define PIN_ALT7_SLOW (_PIN_MODE_ALT7 | _PIN_OUTPUT_SLOW)
#define PIN_ALT7_OPENDRAIN (_PIN_MODE_ALT7 | _PIN_OUTPUT_LOWDRIVE)
#define PIN_ALT7_LOWDRIVE (_PIN_MODE_ALT7 | _PIN_OUTPUT_OPENDRAIN)
#define PIN_ALT7_HIGHDRIVE (_PIN_MODE_ALT7 | _PIN_OUTPUT_HIGHDRIVE)
/* The initial value for GPIO (Alternative 1 outputs):
*
* ---- ---v ---- ---- ---- ---- ---- ----
*
* Passive Filter and digital filter enable are valid in all digital pin
* muxing modes.
*/
#define GPIO_OUTPUT_ONE (1 << 24) /* Bit 24: 1:Initial output value=1 */
#define GPIO_OUTPUT_ZER0 (0) /* Bit 24: 0:Initial output value=0 */
/* Five bits are used to incode DMA/interrupt options:
*
* ---- ---- iiii i--- ---- ---- ---- ----
*
* The pin interrupt configuration is valid in all digital pin muxing modes
* (restricted to inputs).
*/
#define _PIN_INT_SHIFT (20)
#define _PIN_INT_MASK (31 << _PIN_INT_SHIFT)
#define _PIN_INTDMA_MASK (3 << _PIN_INT_SHIFT)
#define _PIN_INTDMA_NONE (0 << _PIN_INT_SHIFT)
#define _PIN_DMA (1 << _PIN_INT_SHIFT)
#define _PIN_INTERRUPT (2 << _PIN_INT_SHIFT)
#define PIN_DMA_RISING (5 << _PIN_INT_SHIFT) /* 00101 DMA Request on rising edge */
#define PIN_DMA_FALLING (9 << _PIN_INT_SHIFT) /* 01001 DMA Request on falling edge */
#define PIN_DMA_BOTH (13 << _PIN_INT_SHIFT) /* 01101 DMA Request on either edge */
#define PIN_INT_ZERO (2 << _PIN_INT_SHIFT) /* 00010 Interrupt when logic zero */
#define PIN_INT_RISING (6 << _PIN_INT_SHIFT) /* 00110 Interrupt on rising edge */
#define PIN_INT_FALLING (10 << _PIN_INT_SHIFT) /* 01010 Interrupt on falling edge */
#define PIN_INT_BOTH (14 << _PIN_INT_SHIFT) /* 01110 Interrupt on either edge */
#define PIN_INT_ONE (18 << _PIN_INT_SHIFT) /* 10010 Interrupt when logic one */
/* Two bits is used to enable the filter options:
*
* ---- ---- ---- -fd- ---- ---- ---- ----
*
* Passive Filter and digital filter enable are valid in all digital pin
* muxing modes.
*/
#define PIN_PASV_FILTER (1 << 18) /* Bit 18: Enable passive filter */
#define PIN_DIG_FILTER (1 << 17) /* Bit 17: Enable digital filter */
/* Three bits are used to define the port number:
*
* ---- ---- ---- ---- ---- -ppp ---- ----
*/
#define _PIN_PORT_SHIFT (8) /* Bits 8-10: port number */
#define _PIN_PORT_MASK (7 << _PIN_PORT_SHIFT)
#define PIN_PORTA (KINETIS_PORTA << _PIN_PORT_SHIFT)
#define PIN_PORTB (KINETIS_PORTB << _PIN_PORT_SHIFT)
#define PIN_PORTC (KINETIS_PORTC << _PIN_PORT_SHIFT)
#define PIN_PORTD (KINETIS_PORTD << _PIN_PORT_SHIFT)
#define PIN_PORTE (KINETIS_PORTE << _PIN_PORT_SHIFT)
/* Five bits are used to define the pin number:
*
* ---- ---- ---- ---- ---- ---- ---b bbbb
*/
#define _PIN_SHIFT (0) /* Bits 0-4: port number */
#define _PIN_MASK (31 << _PIN_SHIFT)
#define PIN(n) ((n) << _PIN_SHIFT)
#define PIN0 (0 << _PIN_SHIFT)
#define PIN1 (1 << _PIN_SHIFT)
#define PIN2 (2 << _PIN_SHIFT)
#define PIN3 (3 << _PIN_SHIFT)
#define PIN4 (4 << _PIN_SHIFT)
#define PIN5 (5 << _PIN_SHIFT)
#define PIN6 (6 << _PIN_SHIFT)
#define PIN7 (7 << _PIN_SHIFT)
#define PIN8 (8 << _PIN_SHIFT)
#define PIN9 (9 << _PIN_SHIFT)
#define PIN10 (10 << _PIN_SHIFT)
#define PIN11 (11 << _PIN_SHIFT)
#define PIN12 (12 << _PIN_SHIFT)
#define PIN13 (13 << _PIN_SHIFT)
#define PIN14 (14 << _PIN_SHIFT)
#define PIN15 (15 << _PIN_SHIFT)
#define PIN16 (16 << _PIN_SHIFT)
#define PIN17 (17 << _PIN_SHIFT)
#define PIN18 (18 << _PIN_SHIFT)
#define PIN19 (19 << _PIN_SHIFT)
#define PIN20 (20 << _PIN_SHIFT)
#define PIN21 (21 << _PIN_SHIFT)
#define PIN22 (22 << _PIN_SHIFT)
#define PIN23 (23 << _PIN_SHIFT)
#define PIN24 (24 << _PIN_SHIFT)
#define PIN25 (25 << _PIN_SHIFT)
#define PIN26 (26 << _PIN_SHIFT)
#define PIN27 (27 << _PIN_SHIFT)
#define PIN28 (28 << _PIN_SHIFT)
#define PIN29 (29 << _PIN_SHIFT)
#define PIN30 (30 << _PIN_SHIFT)
#define PIN31 (31 << _PIN_SHIFT)
/************************************************************************************
* Public Types
************************************************************************************/
typedef FAR void *DMA_HANDLE;
typedef void (*dma_callback_t)(DMA_HANDLE handle, void *arg, int result);
/* The following is used for sampling DMA registers when CONFIG DEBUG_DMA is selected */
#ifdef CONFIG_DEBUG_DMA
struct kinetis_dmaglobalregs_s
{
#warning "Missing logic"
/* Global Registers */
};
struct kinetis_dmachanregs_s
{
#warning "Missing logic"
/* Channel Registers */
};
struct kinetis_dmaregs_s
{
/* Global Registers */
struct kinetis_dmaglobalregs_s gbl;
/* Channel Registers */
struct kinetis_dmachanregs_s ch;
};
#endif
/************************************************************************************
* 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: kinetis_clockconfig
*
* Description:
* Called to initialize the Kinetis chip. This does whatever setup is needed to
* put the MCU in a usable state. This includes the initialization of clocking
* using the settings in board.h.
*
************************************************************************************/
EXTERN void kinetis_clockconfig(void);
/************************************************************************************
* Name: kinetis_lowsetup
*
* Description:
* Called at the very beginning of _start. Performs low level initialization
* including setup of the console UART. This UART done early so that the serial
* console is available for debugging very early in the boot sequence.
*
************************************************************************************/
EXTERN void kinetis_lowsetup(void);
/******************************************************************************
* Name: kinetis_uartreset
*
* Description:
* Reset a UART.
*
******************************************************************************/
#ifdef HAVE_UART_DEVICE
EXTERN void kinetis_uartreset(uintptr_t uart_base);
#endif
/******************************************************************************
* Name: kinetis_uartconfigure
*
* Description:
* Configure a UART as a RS-232 UART.
*
******************************************************************************/
#ifdef HAVE_UART_DEVICE
EXTERN void kinetis_uartconfigure(uintptr_t uart_base, uint32_t baud,
uint32_t clock, unsigned int parity,
unsigned int nbits);
#endif
/************************************************************************************
* Name: kinetis_wddisable
*
* Description:
* Disable the watchdog timer
*
************************************************************************************/
EXTERN void kinetis_wddisable(void);
/************************************************************************************
* Name: kinetis_pinconfig
*
* Description:
* Configure a pin based on bit-encoded description of the pin.
*
************************************************************************************/
EXTERN int kinetis_pinconfig(uint32_t cfgset);
/************************************************************************************
* Name: kinetis_pinfilter
*
* Description:
* Configure the digital filter associated with a port. The digital filter
* capabilities of the PORT module are available in all digital pin muxing modes.
*
* Input parmeters:
* port - See KINETIS_PORTn definitions in kinetis_port.h
* lpo - true: Digital Filters are clocked by the bus clock
* false: Digital Filters are clocked by the 1 kHz LPO clock
* width - Filter Length
*
************************************************************************************/
EXTERN int kinetis_pinfilter(unsigned int port, bool lpo, unsigned int width);
/************************************************************************************
* Name: kinetis_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
************************************************************************************/
EXTERN void kinetis_gpiowrite(uint32_t pinset, bool value);
/************************************************************************************
* Name: kinetis_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
************************************************************************************/
EXTERN bool kinetis_gpioread(uint32_t pinset);
/************************************************************************************
* Name: kinetis_pinirqinitialize
*
* Description:
* Initialize logic to support a second level of interrupt decoding for GPIO pins.
*
************************************************************************************/
#ifdef CONFIG_GPIO_IRQ
EXTERN void kinetis_pinirqinitialize(void);
#else
# define kinetis_pinirqinitialize()
#endif
/************************************************************************************
* Name: kinetis_pinirqattach
*
* Description:
* Attach a pin interrupt handler. The normal initalization sequence is:
*
* 1. Call kinetis_pinconfig() to configure the interrupting pin (pin interrupts
* will be disabled.
* 2. Call kinetis_pinirqattach() to attach the pin interrupt handling function.
* 3. Call kinetis_pinirqenable() to enable interrupts on the pin.
*
* Parameters:
* - pinset: Pin configuration
* - pinisr: Pin interrupt service routine
*
* Returns:
* The previous value of the interrupt handler function pointer. This value may,
* for example, be used to restore the previous handler when multiple handlers are
* used.
*
************************************************************************************/
EXTERN xcpt_t kinetis_pinirqattach(uint32_t pinset, xcpt_t pinisr);
/************************************************************************************
* Name: kinetis_pinirqenable
*
* Description:
* Enable the interrupt for specified pin IRQ
*
************************************************************************************/
#ifdef CONFIG_GPIO_IRQ
EXTERN void kinetis_pinirqenable(uint32_t pinset);
#else
# define kinetis_pinirqenable(pinset)
#endif
/************************************************************************************
* Name: kinetis_pinirqdisable
*
* Description:
* Disable the interrupt for specified pin
*
************************************************************************************/
#ifdef CONFIG_GPIO_IRQ
EXTERN void kinetis_pinirqdisable(uint32_t pinset);
#else
# define kinetis_pinirqdisable(pinset)
#endif
/************************************************************************************
* Name: kinetis_pindmaenable
*
* Description:
* Enable DMA for specified pin
*
************************************************************************************/
#ifdef CONFIG_KINETIS_DMA
EXTERN void kinetis_pindmaenable(uint32_t pinset);
#endif
/************************************************************************************
* Name: kinetis_pindmadisable
*
* Description:
* Disable DMA for specified pin
*
************************************************************************************/
#ifdef CONFIG_KINETIS_DMA
EXTERN void kinetis_pindmadisable(uint32_t pinset);
#endif
/************************************************************************************
* Function: kinetis_pindump
*
* Description:
* Dump all GPIO registers associated with the base address of the provided pinset.
*
************************************************************************************/
#ifdef CONFIG_DEBUG_GPIO
EXTERN int kinetis_pindump(uint32_t pinset, const char *msg);
#else
# define kinetis_pindump(p,m)
#endif
/************************************************************************************
* Name: kinetis_clrpend
*
* Description:
* Clear a pending interrupt at the NVIC. This does not seem to be required
* for most interrupts.
*
************************************************************************************/
EXTERN void kinetis_clrpend(int irq);
/************************************************************************************
* Name: kinetis_spi/ssp0/ssp1select, kinetis_spi/ssp0/ssp1status, and
* kinetis_spi/ssp0/ssp1cmddata
*
* Description:
* These external functions must be provided by board-specific logic. They are
* implementations of the select, status, and cmddata 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 Kinetis logic. To use
* this common SPI logic on your board:
*
* 1. Provide logic in kinetis_boardinitialize() to configure SPI/SSP chip select
* pins.
* 2. Provide kinetis_spi/ssp0/ssp1select() and kinetis_spi/ssp0/ssp1status() functions
* in your board-specific logic. These functions will perform chip selection
* and status operations using GPIOs in the way your board is configured.
* 2. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
* kinetis_spi/ssp0/ssp1cmddata() functions in your board-specific logic. These
* functions will perform cmd/data selection operations using GPIOs in the way
* your board is configured.
* 3. Add a call 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;
#ifdef CONFIG_KINETIS_SPI
EXTERN void kinetis_spiselect(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected);
EXTERN uint8_t kinetis_spistatus(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
#ifdef CONFIG_SPI_CMDDATA
EXTERN int kinetis_spicmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd);
#endif
#endif
#ifdef CONFIG_KINETIS_SSP0
EXTERN void kinetis_ssp0select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected);
EXTERN uint8_t kinetis_ssp0status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
#ifdef CONFIG_SPI_CMDDATA
EXTERN int kinetis_ssp0cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd);
#endif
#endif
#ifdef CONFIG_KINETIS_SSP1
EXTERN void kinetis_ssp1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected);
EXTERN uint8_t kinetis_ssp1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid);
#ifdef CONFIG_SPI_CMDDATA
EXTERN int kinetis_ssp1cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd);
#endif
#endif
/****************************************************************************
* Name: ssp_flush
*
* Description:
* Flush and discard any words left in the RX fifo. This can be called
* from ssp0/1select after a device is deselected (if you worry about such
* things).
*
* Input Parameters:
* dev - Device-specific state data
*
* Returned Value:
* None
*
****************************************************************************/
struct spi_dev_s;
#ifdef CONFIG_KINETIS_SPI
EXTERN void spi_flush(FAR struct spi_dev_s *dev);
#endif
#if defined(CONFIG_KINETIS_SSP0) || defined(CONFIG_KINETIS_SSP1)
EXTERN void ssp_flush(FAR struct spi_dev_s *dev);
#endif
/****************************************************************************
* Name: kinetis_dmainitialize
*
* Description:
* Initialize the GPDMA subsystem.
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN void kinetis_dmainitilaize(void);
#endif
/****************************************************************************
* Name: kinetis_dmachannel
*
* Description:
* Allocate a DMA channel. This function sets aside a DMA channel and
* gives the caller exclusive access to the DMA channel.
*
* Returned Value:
* One success, this function returns a non-NULL, void* DMA channel
* handle. NULL is returned on any failure. This function can fail only
* if no DMA channel is available.
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN DMA_HANDLE kinetis_dmachannel(void);
#endif
/****************************************************************************
* Name: kinetis_dmafree
*
* Description:
* Release a DMA channel. NOTE: The 'handle' used in this argument must
* NEVER be used again until kinetis_dmachannel() is called again to re-gain
* a valid handle.
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN void kinetis_dmafree(DMA_HANDLE handle);
#endif
/****************************************************************************
* Name: kinetis_dmasetup
*
* Description:
* Configure DMA for one transfer.
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN int kinetis_dmarxsetup(DMA_HANDLE handle,
uint32_t control, uint32_t config,
uint32_t srcaddr, uint32_t destaddr,
size_t nbytes);
#endif
/****************************************************************************
* Name: kinetis_dmastart
*
* Description:
* Start the DMA transfer
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN int kinetis_dmastart(DMA_HANDLE handle, dma_callback_t callback, void *arg);
#endif
/****************************************************************************
* Name: kinetis_dmastop
*
* Description:
* Cancel the DMA. After kinetis_dmastop() is called, the DMA channel is
* reset and kinetis_dmasetup() must be called before kinetis_dmastart() can be
* called again
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
EXTERN void kinetis_dmastop(DMA_HANDLE handle);
#endif
/****************************************************************************
* Name: kinetis_dmasample
*
* Description:
* Sample DMA register contents
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
#ifdef CONFIG_DEBUG_DMA
EXTERN void kinetis_dmasample(DMA_HANDLE handle, struct kinetis_dmaregs_s *regs);
#else
# define kinetis_dmasample(handle,regs)
#endif
#endif
/****************************************************************************
* Name: kinetis_dmadump
*
* Description:
* Dump previously sampled DMA register contents
*
****************************************************************************/
#ifdef CONFIG_KINETIS_GPDMA
#ifdef CONFIG_DEBUG_DMA
EXTERN void kinetis_dmadump(DMA_HANDLE handle, const struct kinetis_dmaregs_s *regs,
const char *msg);
#else
# define kinetis_dmadump(handle,regs,msg)
#endif
#endif
/****************************************************************************
* Name: sdhc_initialize
*
* Description:
* Initialize SDIO for operation.
*
* Input Parameters:
* slotno - Not used.
*
* Returned Values:
* A reference to an SDIO interface structure. NULL is returned on failures.
*
****************************************************************************/
#ifdef CONFIG_KINETIS_SDHC
struct sdio_dev_s;
EXTERN FAR struct sdio_dev_s *sdhc_initialize(int slotno);
#endif
/****************************************************************************
* Name: sdhc_mediachange
*
* Description:
* Called by board-specific logic -- posssible from an interrupt handler --
* in order to signal to the driver that a card has been inserted or
* removed from the slot
*
* Input Parameters:
* dev - An instance of the SDIO driver device state structure.
* cardinslot - true is a card has been detected in the slot; false if a
* card has been removed from the slot. Only transitions
* (inserted->removed or removed->inserted should be reported)
*
* Returned Values:
* None
*
****************************************************************************/
#ifdef CONFIG_KINETIS_SDHC
EXTERN void sdhc_mediachange(FAR struct sdio_dev_s *dev, bool cardinslot);
#endif
/****************************************************************************
* Name: sdio_wrprotect
*
* Description:
* Called by board-specific logic to report if the card in the slot is
* mechanically write protected.
*
* Input Parameters:
* dev - An instance of the SDIO driver device state structure.
* wrprotect - true is a card is writeprotected.
*
* Returned Values:
* None
*
****************************************************************************/
#ifdef CONFIG_KINETIS_SDHC
EXTERN void sdhc_wrprotect(FAR struct sdio_dev_s *dev, bool wrprotect);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_INTERNAL_H */
