spi.c File Reference

#include <spi.h>
#include <hal.h>

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Macros
#define	BR_CLEAR_MASK   0xFFC7

Functions
void	spi_init (const spi_dev *dev)
	Initialize and reset a SPI device. More...
void	spi_foreach (void(*fn)(const spi_dev *))
	Call a function on each SPI port. More...
void	spi_gpio_master_cfg (const spi_dev *dev, const gpio_dev *comm_dev, uint8_t sck_bit, uint8_t miso_bit, uint8_t mosi_bit)
	Configure and enable a SPI device as bus master. More...
void	spi_gpio_slave_cfg (const spi_dev *dev, const gpio_dev *comm_dev, uint8_t sck_bit, uint8_t miso_bit, uint8_t mosi_bit)
void	spi_reconfigure (const spi_dev *dev, uint8_t ismaster, uint16_t baudPrescaler, uint16_t bitorder, uint8_t mode)
void	spi_set_speed (const spi_dev *dev, uint16_t baudPrescaler)
int	spimaster_transfer (const spi_dev *dev, const uint8_t *txbuf, uint16_t txcount, uint8_t *rxbuf, uint16_t rxcount)
static void	isr_handler (const spi_dev *dev)
void	SPI1_IRQHandler ()
void	SPI2_IRQHandler ()
void	SPI3_IRQHandler ()

Variables
static spi_state spi1_state	IN_CCM
static const spi_dev	spi1
const spi_dev *const	_SPI1 = &spi1
static const spi_dev	spi2
const spi_dev *const	_SPI2 = &spi2
static const spi_dev	spi3
const spi_dev *const	_SPI3 = &spi3

Macro Definition Documentation

BR_CLEAR_MASK

#define BR_CLEAR_MASK   0xFFC7

Referenced by spi_set_speed().

Function Documentation

isr_handler()

static void isr_handler ( const spi_dev *  dev )

static

Definition at line 265 of file spi.c.

Referenced by SPI1_IRQHandler(), SPI2_IRQHandler(), and SPI3_IRQHandler().

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SPI1_IRQHandler()

void SPI1_IRQHandler

(

)

Definition at line 277 of file spi.c.

Referenced by isr_handler().

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SPI2_IRQHandler()

void SPI2_IRQHandler

(

)

Definition at line 281 of file spi.c.

Referenced by isr_handler().

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SPI3_IRQHandler()

void SPI3_IRQHandler

(

)

Definition at line 285 of file spi.c.

Referenced by isr_handler().

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spi_foreach()

void spi_foreach

(

void(*)(const spi_dev *)

fn

)

Call a function on each SPI port.

Parameters

fn	Function to call.

Definition at line 84 of file spi.c.

Referenced by spi_master_enable(), and spi_peripheral_disable_all().

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spi_gpio_master_cfg()

void spi_gpio_master_cfg	(	const spi_dev *	dev,
		const gpio_dev *	comm_dev,
		uint8_t	sck_bit,
		uint8_t	miso_bit,
		uint8_t	mosi_bit
	)

Configure and enable a SPI device as bus master.

The device's peripheral will be disabled before being reconfigured.

Parameters

dev	Device to configure as bus master
baud	Bus baud rate
mode	SPI mode
flags	Logical OR of spi_cfg_flag values.

See also

spi_cfg_flag

Definition at line 92 of file spi.c.

Referenced by F4Light::SPIDevice::init(), and spi_master_enable().

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spi_gpio_slave_cfg()

void spi_gpio_slave_cfg	(	const spi_dev *	dev,
		const gpio_dev *	comm_dev,
		uint8_t	sck_bit,
		uint8_t	miso_bit,
		uint8_t	mosi_bit
	)

Definition at line 115 of file spi.c.

Referenced by spi_master_enable().

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spi_init()

void spi_init

(

const spi_dev *

dev

)

Initialize and reset a SPI device.

Parameters

dev	Device to initialize and reset.

Definition at line 57 of file spi.c.

Referenced by F4Light::SPIDevice::init(), setup(), spi_peripheral_disable(), and spi_reconfigure().

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spi_reconfigure()

void spi_reconfigure	(	const spi_dev *	dev,
		uint8_t	ismaster,
		uint16_t	baudPrescaler,
		uint16_t	bitorder,
		uint8_t	mode
	)

Definition at line 132 of file spi.c.

Referenced by spi_master_enable(), and spi_peripheral_disable().

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spi_set_speed()

void spi_set_speed	(	const spi_dev *	dev,
		uint16_t	baudPrescaler
	)

Definition at line 205 of file spi.c.

Referenced by F4Light::SPIDevice::apply_speed(), spi_master_enable(), F4Light::SPIDevice::transfer(), and F4Light::SPIDevice::transfer_fullduplex().

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spimaster_transfer()

int spimaster_transfer	(	const spi_dev *	dev,
		const uint8_t *	txbuf,
		uint16_t	txcount,
		uint8_t *	rxbuf,
		uint16_t	rxcount
	)

Definition at line 219 of file spi.c.

Referenced by spi_master_enable(), and F4Light::SPIDevice::transfer().

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Variable Documentation

_SPI1

const spi_dev* const _SPI1 = &spi1

SPI device 1

Definition at line 32 of file spi.c.

_SPI2

const spi_dev* const _SPI2 = &spi2

SPI device 2

Definition at line 43 of file spi.c.

_SPI3

const spi_dev* const _SPI3 = &spi3

SPI device 3

Definition at line 54 of file spi.c.

IN_CCM

spi_state spi3_state IN_CCM

static

Definition at line 19 of file spi.c.

spi1

const spi_dev spi1

static

Initial value:

= {
    .SPIx     = SPI1,
    .afio     = GPIO_AF_SPI1,
    .irq      = SPI1_IRQn,
    .clock    = RCC_APB2Periph_SPI1,
    .dma      = { DMA_CR_CH3, DMA2_STREAM2, DMA2_STREAM3 }, 
    .state    = &spi1_state,
}

Definition at line 23 of file spi.c.

spi2

const spi_dev spi2

static

Initial value:

= {
    .SPIx     = SPI2,
    .afio     = GPIO_AF_SPI2,
    .irq      = SPI2_IRQn,
    .clock    = RCC_APB1Periph_SPI2,
    .dma      = { DMA_CR_CH0, DMA1_STREAM3, DMA1_STREAM4 }, 
    .state    = &spi2_state,
}

Definition at line 34 of file spi.c.

spi3

const spi_dev spi3

static

Initial value:

= {
    .SPIx     = SPI3,
    .afio     = GPIO_AF_SPI3,
    .irq      = SPI3_IRQn,
    .clock    = RCC_APB1Periph_SPI3,
    .dma      = { DMA_CR_CH0, DMA1_STREAM2, DMA1_STREAM5 }, 
    .state    = &spi3_state,
}

Definition at line 45 of file spi.c.