spi_slave_hs_arch.c File Reference

Highspeed SPI Slave Interface. More...

#include "spi_slave_hs_arch.h"
#include "mcu_periph/spi.h"
#include <BOARD_CONFIG>
#include "std.h"
#include "mcu.h"
#include "led.h"
#include "LPC21xx.h"
#include "ssp_hw.h"
#include "pprz_debug.h"
#include "armVIC.h"

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Macros
#define	SSP_DDS   0x07 << 0 /* data size : 8 bits */
#define	SSP_FRF   0x00 << 4 /* frame format : SPI */
#define	SSP_CPOL   0x00 << 6 /* clock polarity : data captured on first clock transition */
#define	SSP_CPHA   0x00 << 7 /* clock phase : SCK idles low */
#define	SSP_SCR   0x00 << 8 /* serial clock rate : divide by 1 */
#define	SSPCR0_VAL   (SSP_DDS | SSP_FRF | SSP_CPOL | SSP_CPHA | SSP_SCR )
#define	SSP_LBM   0x00 << 0 /* loopback mode : disabled */
#define	SSP_SSE   0x00 << 1 /* SSP enable : enable later when init ready */
#define	SSP_MS   0x01 << 2 /* master slave mode : slave */
#define	SSP_SOD   0x00 << 3 /* slave output disable : don't care when master */
#define	SSPCR1_VAL   (SSP_LBM | SSP_SSE | SSP_MS | SSP_SOD )
#define	SSP_PINSEL1_SCK   (2<<2)
#define	SSP_PINSEL1_MISO   (2<<4)
#define	SSP_PINSEL1_MOSI   (2<<6)
#define	SSP_PINSEL1_SSEL   (2<<8)
#define	SSP_Write(X)   SSPDR=(X)
#define	SSP_Read()   SSPDR
#define	SSP_Status()   SSPSR
#define	SPI1_VIC_SLOT   7
	default initial settings More...

Functions
static void	SSP_ISR (void)
static int	spi_slave_hs_check_free_space (struct spi_slave_hs *p, long *fd, uint16_t len)
static void	spi_slave_hs_transmit (struct spi_slave_hs *p, long fd, uint8_t byte)
static void	spi_slave_hs_transmit_buffer (struct spi_slave_hs *p, long fd, uint8_t *data, uint16_t len)
static void	spi_slave_hs_send (struct spi_slave_hs *p, long fd)
static int	spi_slave_hs_char_available (struct spi_slave_hs *p)
static uint8_t	spi_slave_hs_getch (struct spi_slave_hs *p)
void	spi_slave_hs_init (void)

Variables
struct spi_slave_hs	spi_slave_hs
uint16_t	spi_slave_hs_rx_insert_idx
uint16_t	spi_slave_hs_rx_extract_idx
uint8_t	spi_slave_hs_rx_buffer [SPI_SLAVE_HS_RX_BUFFER_SIZE]
uint8_t	spi_slave_hs_tx_insert_idx
uint8_t	spi_slave_hs_tx_extract_idx
uint8_t	spi_slave_hs_tx_buffer [SPI_SLAVE_HS_TX_BUFFER_SIZE]

Detailed Description

Highspeed SPI Slave Interface.

Definition in file spi_slave_hs_arch.c.

Macro Definition Documentation

#define SPI1_VIC_SLOT   7

default initial settings

Definition at line 103 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

#define SSP_CPHA   0x00 << 7 /* clock phase : SCK idles low */

Definition at line 57 of file spi_slave_hs_arch.c.

#define SSP_CPOL   0x00 << 6 /* clock polarity : data captured on first clock transition */

Definition at line 56 of file spi_slave_hs_arch.c.

#define SSP_DDS   0x07 << 0 /* data size : 8 bits */

Definition at line 53 of file spi_slave_hs_arch.c.

#define SSP_FRF   0x00 << 4 /* frame format : SPI */

Definition at line 55 of file spi_slave_hs_arch.c.

#define SSP_LBM   0x00 << 0 /* loopback mode : disabled */

Definition at line 63 of file spi_slave_hs_arch.c.

#define SSP_MS   0x01 << 2 /* master slave mode : slave */

Definition at line 65 of file spi_slave_hs_arch.c.

#define SSP_PINSEL1_MISO   (2<<4)

Definition at line 92 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

#define SSP_PINSEL1_MOSI   (2<<6)

Definition at line 93 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

#define SSP_PINSEL1_SCK   (2<<2)

Definition at line 91 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

#define SSP_PINSEL1_SSEL   (2<<8)

Definition at line 94 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

#define SSP_Read

(

)

SSPDR

Definition at line 98 of file spi_slave_hs_arch.c.

Referenced by SSP_ISR().

#define SSP_SCR   0x00 << 8 /* serial clock rate : divide by 1 */

Definition at line 58 of file spi_slave_hs_arch.c.

#define SSP_SOD   0x00 << 3 /* slave output disable : don't care when master */

Definition at line 66 of file spi_slave_hs_arch.c.

#define SSP_SSE   0x00 << 1 /* SSP enable : enable later when init ready */

Definition at line 64 of file spi_slave_hs_arch.c.

#define SSP_Status

(

)

SSPSR

Definition at line 99 of file spi_slave_hs_arch.c.

#define SSP_Write

(

X

)

SSPDR=(X)

Definition at line 97 of file spi_slave_hs_arch.c.

Referenced by SSP_ISR().

#define SSPCR0_VAL   (SSP_DDS | SSP_FRF | SSP_CPOL | SSP_CPHA | SSP_SCR )

Definition at line 60 of file spi_slave_hs_arch.c.

Referenced by max11040_hw_init(), micromag_hw_init(), and spi_slave_hs_init().

#define SSPCR1_VAL   (SSP_LBM | SSP_SSE | SSP_MS | SSP_SOD )

Definition at line 68 of file spi_slave_hs_arch.c.

Referenced by max11040_hw_init(), micromag_hw_init(), and spi_slave_hs_init().

Function Documentation

static int spi_slave_hs_char_available ( struct spi_slave_hs *  p )

static

Definition at line 133 of file spi_slave_hs_arch.c.

References spi_slave_hs_rx_extract_idx, and spi_slave_hs_rx_insert_idx.

Referenced by spi_slave_hs_init().

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static int spi_slave_hs_check_free_space ( struct spi_slave_hs *  p, long *  fd, uint16_t  len  )

static

Definition at line 108 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

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static uint8_t spi_slave_hs_getch ( struct spi_slave_hs *  p )

static

Definition at line 138 of file spi_slave_hs_arch.c.

References spi_slave_hs_rx_buffer, SPI_SLAVE_HS_RX_BUFFER_SIZE, and spi_slave_hs_rx_extract_idx.

Referenced by spi_slave_hs_init().

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void spi_slave_hs_init

(

void

)

Definition at line 145 of file spi_slave_hs_arch.c.

References _VIC_ADDR, _VIC_CNTL, spi_slave_hs::device, PINSEL1, RXIM, SPI1_VIC_SLOT, spi_slave_hs_char_available(), spi_slave_hs_check_free_space(), spi_slave_hs_getch(), spi_slave_hs_send(), spi_slave_hs_transmit(), spi_slave_hs_transmit_buffer(), SSE, SSP_ISR(), SSP_PINSEL1_MISO, SSP_PINSEL1_MOSI, SSP_PINSEL1_SCK, SSP_PINSEL1_SSEL, SSPCPSR, SSPCR0, SSPCR0_VAL, SSPCR1, SSPCR1_VAL, SSPIMSC, VIC_BIT, VIC_ENABLE, VIC_SPI1, VICIntEnable, and VICIntSelect.

Referenced by mcu_init().

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static void spi_slave_hs_send ( struct spi_slave_hs *  p, long  fd  )

static

Definition at line 131 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_init().

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static void spi_slave_hs_transmit ( struct spi_slave_hs *  p, long  fd, uint8_t  byte  )

static

Definition at line 113 of file spi_slave_hs_arch.c.

References byte, spi_slave_hs_tx_buffer, SPI_SLAVE_HS_TX_BUFFER_SIZE, spi_slave_hs_tx_extract_idx, and spi_slave_hs_tx_insert_idx.

Referenced by spi_slave_hs_init(), and spi_slave_hs_transmit_buffer().

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static void spi_slave_hs_transmit_buffer ( struct spi_slave_hs *  p, long  fd, uint8_t *  data, uint16_t  len  )

static

Definition at line 123 of file spi_slave_hs_arch.c.

References p, and spi_slave_hs_transmit().

Referenced by spi_slave_hs_init().

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static void SSP_ISR ( void  )

static

Definition at line 193 of file spi_slave_hs_arch.c.

References ISR_ENTRY, ISR_EXIT, spi_slave_hs_rx_buffer, SPI_SLAVE_HS_RX_BUFFER_SIZE, spi_slave_hs_rx_extract_idx, spi_slave_hs_rx_insert_idx, spi_slave_hs_tx_buffer, SPI_SLAVE_HS_TX_BUFFER_SIZE, spi_slave_hs_tx_extract_idx, spi_slave_hs_tx_insert_idx, SSP_Read, SSP_Write, and VICVectAddr.

Referenced by spi_slave_hs_init().

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Variable Documentation

struct spi_slave_hs spi_slave_hs

Definition at line 41 of file spi_slave_hs_arch.c.

uint8_t spi_slave_hs_rx_buffer[SPI_SLAVE_HS_RX_BUFFER_SIZE]

Definition at line 45 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_getch(), and SSP_ISR().

uint16_t spi_slave_hs_rx_extract_idx

Definition at line 44 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_char_available(), spi_slave_hs_getch(), and SSP_ISR().

uint16_t spi_slave_hs_rx_insert_idx

Definition at line 44 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_char_available(), and SSP_ISR().

uint8_t spi_slave_hs_tx_buffer[SPI_SLAVE_HS_TX_BUFFER_SIZE]

Definition at line 47 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_transmit(), and SSP_ISR().

uint8_t spi_slave_hs_tx_extract_idx

Definition at line 46 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_transmit(), and SSP_ISR().

uint8_t spi_slave_hs_tx_insert_idx

Definition at line 46 of file spi_slave_hs_arch.c.

Referenced by spi_slave_hs_transmit(), and SSP_ISR().