nm_bus_wrapper_same70.c File Reference

This module contains NMC1000 bus wrapper APIs implementation.

Copyright (c) 2018-2019 Microchip Technology Inc. and its subsidiaries.

#include <stdio.h>
#include "bsp/include/nm_bsp.h"
#include "common/include/nm_common.h"
#include "bus_wrapper/include/nm_bus_wrapper.h"
#include "asf.h"
#include "conf_winc.h"

Macros
#define	NM_BUS_MAX_TRX_SZ   4096
#define	SPI0_XDMAC_RX_CH_NUM   2
#define	SPI0_XDMAC_TX_CH_NUM   1
	XDMAC channel HW Interface number for SPI0,refer to datasheet. More...
#define	SPI_ASSERT_CS()   do {p_pio->PIO_CODR = 1 << (CONF_WINC_SPI_CS_GPIO & 0x1F);}while(0)
#define	SPI_DEASSERT_CS()   do {p_pio->PIO_SODR = 1 << (CONF_WINC_SPI_CS_GPIO & 0x1F);}while(0)
#define	XDMAC_RX_CH   1
#define	XDMAC_TX_CH   0
	XDMAC channel used in this example. More...
#define	xSPI_ASSERT_CS()   {gpio_set_pin_low(CONF_WINC_SPI_CS_GPIO);}
#define	xSPI_DEASSERT_CS()   {gpio_set_pin_high(CONF_WINC_SPI_CS_GPIO);}

Functions
sint8	nm_bus_deinit (void)
	De-initialize the bus wrapper. More...
sint8	nm_bus_init (uint8_t *pvinit, uint32 req_serial_number)
sint8	nm_bus_ioctl (uint8 u8Cmd, void *pvParameter)
static sint8	spi_rw (uint8 *pu8Mosi, uint8 *pu8Miso, uint16 u16Sz)
static sint8	spi_xdmac_configure (Spi *const pspi, uint8 *u8Mosi, uint8 *u8Miso, uint16 pu16Sz)
sint8	spi_xdmac_init ()
void	XDMAC_Handler (void)

Variables
uint16_t	check [100]
	XDMAC interrupt handler. More...
uint8_t	dummy [1500]
tstrNmBusCapabilities	egstrNmBusCapabilities
Pio *	p_pio
	configure xdmac for spi and ready to transfer/receive. More...
Pio *	p_pio_cs
	PIO instance used by CS. More...
volatile uint8_t	rx_irq_complete
volatile uint8_t	tx_irq_complete
volatile uint8_t	xdma_irq_complete = 0
static xdmac_channel_config_t	xdmac_rx_cfg
static xdmac_channel_config_t	xdmac_tx_cfg
	XDMAC channel configuration. More...

#define NM_BUS_MAX_TRX_SZ   4096

#define SPI0_XDMAC_RX_CH_NUM   2

Referenced by spi_xdmac_init().

#define SPI0_XDMAC_TX_CH_NUM   1

XDMAC channel HW Interface number for SPI0,refer to datasheet.

Referenced by spi_xdmac_init().

#define SPI_ASSERT_CS

(

)

do {p_pio->PIO_CODR = 1 << (CONF_WINC_SPI_CS_GPIO & 0x1F);}while(0)

Referenced by spi_rw(), and spi_xdmac_configure().

#define SPI_DEASSERT_CS

(

)

do {p_pio->PIO_SODR = 1 << (CONF_WINC_SPI_CS_GPIO & 0x1F);}while(0)

Referenced by nm_bus_init(), spi_rw(), and spi_xdmac_configure().

#define XDMAC_RX_CH   1

Referenced by spi_xdmac_configure(), spi_xdmac_init(), and XDMAC_Handler().

#define XDMAC_TX_CH   0

XDMAC channel used in this example.

Referenced by spi_xdmac_configure(), spi_xdmac_init(), and XDMAC_Handler().

#define xSPI_ASSERT_CS

(

)

{gpio_set_pin_low(CONF_WINC_SPI_CS_GPIO);}

#define xSPI_DEASSERT_CS

(

)

{gpio_set_pin_high(CONF_WINC_SPI_CS_GPIO);}

nm_bus_deinit

(

void

)

De-initialize the bus wrapper.

Returns

ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure

References CONF_WINC_SPI, CONF_WINC_SPI_CLK_GPIO, CONF_WINC_SPI_CS_GPIO, CONF_WINC_SPI_MISO_GPIO, CONF_WINC_SPI_MOSI_GPIO, IOPORT_DIR_INPUT, ioport_set_pin_dir(), M2M_SUCCESS, and spi_disable().

Referenced by nm_bus_iface_deinit().

sint8 nm_bus_init	(	uint8_t *	pvinit,
		uint32	req_serial_number
	)

References CONF_WINC_SPI, CONF_WINC_SPI_CLK_FLAGS, CONF_WINC_SPI_CLK_GPIO, CONF_WINC_SPI_CLOCK, CONF_WINC_SPI_CS_FLAGS, CONF_WINC_SPI_CS_GPIO, CONF_WINC_SPI_DLYBCT, CONF_WINC_SPI_DLYBS, CONF_WINC_SPI_MISO_FLAGS, CONF_WINC_SPI_MISO_GPIO, CONF_WINC_SPI_MOSI_FLAGS, CONF_WINC_SPI_MOSI_GPIO, CONF_WINC_SPI_NPCS, CONF_WINC_SPI_PHA, CONF_WINC_SPI_POL, IOPORT_DIR_OUTPUT, ioport_disable_pin(), ioport_enable_pin(), ioport_set_pin_dir(), ioport_set_pin_mode(), M2M_SUCCESS, nm_bsp_reset(), p_pio_cs, PIO_DELTA, SPI_DEASSERT_CS, spi_disable(), spi_disable_mode_fault_detect(), spi_enable(), spi_enable_clock(), spi_reset(), spi_set_baudrate_div(), spi_set_bits_per_transfer(), spi_set_clock_phase(), spi_set_clock_polarity(), spi_set_master_mode(), spi_set_peripheral_chip_select_value(), spi_set_transfer_delay(), and sysclk_get_peripheral_hz().

Referenced by nm_bus_iface_init().

sint8 nm_bus_ioctl	(	uint8	u8Cmd,
		void *	pvParameter
	)

References M2M_ERR, NM_BUS_IOCTL_R, NM_BUS_IOCTL_RW, NM_BUS_IOCTL_W, NM_BUS_IOCTL_W_SPECIAL, tstrNmI2cDefault::pu8Buf, tstrNmI2cSpecial::pu8Buf1, tstrNmI2cSpecial::pu8Buf2, tstrNmSpiRw::pu8InBuf, tstrNmSpiRw::pu8OutBuf, spi_rw(), spi_xdmac_configure(), tstrNmI2cDefault::u16Sz, tstrNmSpiRw::u16Sz, tstrNmI2cSpecial::u16Sz1, and tstrNmI2cSpecial::u16Sz2.

Referenced by nmi_spi_read(), and nmi_spi_write().

static sint8 spi_rw ( uint8 *  pu8Mosi, uint8 *  pu8Miso, uint16  u16Sz  )

static

References CONF_WINC_SPI, CONF_WINC_SPI_CS_GPIO, M2M_ERR_BUS_FAIL, M2M_SUCCESS, NULL, p_pio, PIO_DELTA, SPI_ASSERT_CS, SPI_DEASSERT_CS, spi_read(), and spi_write().

Referenced by nm_bus_ioctl().

static sint8 spi_xdmac_configure ( Spi *const  pspi, uint8 *  u8Mosi, uint8 *  u8Miso, uint16  pu16Sz  )

static

References dummy, M2M_ERR_BUS_FAIL, M2M_SUCCESS, xdmac_channel_config_t::mbr_da, xdmac_channel_config_t::mbr_sa, xdmac_channel_config_t::mbr_ubc, rx_irq_complete, SPI_ASSERT_CS, SPI_DEASSERT_CS, tx_irq_complete, xdmac_channel_enable(), xdmac_configure_transfer(), XDMAC_RX_CH, and XDMAC_TX_CH.

Referenced by nm_bus_ioctl().

sint8 spi_xdmac_init

(

)

References CONF_WINC_SPI, xdmac_channel_config_t::mbr_bc, xdmac_channel_config_t::mbr_cfg, xdmac_channel_config_t::mbr_da, xdmac_channel_config_t::mbr_ds, xdmac_channel_config_t::mbr_dus, xdmac_channel_config_t::mbr_sa, xdmac_channel_config_t::mbr_sus, pmc_enable_periph_clk(), SPI0_XDMAC_RX_CH_NUM, SPI0_XDMAC_TX_CH_NUM, xdmac_channel_enable_interrupt(), xdmac_channel_set_descriptor_control(), xdmac_enable_interrupt(), XDMAC_RX_CH, and XDMAC_TX_CH.

Referenced by main().

void XDMAC_Handler

(

void

)

References rx_irq_complete, tx_irq_complete, xdma_irq_complete, xdmac_channel_disable(), xdmac_channel_get_interrupt_status(), XDMAC_RX_CH, and XDMAC_TX_CH.

uint16_t check[100]

XDMAC interrupt handler.

uint8_t dummy[1500]

Referenced by spi_xdmac_configure().

tstrNmBusCapabilities egstrNmBusCapabilities

Initial value:

=
{
    NM_BUS_MAX_TRX_SZ
}

Referenced by nm_read_block(), and nm_write_block().

Pio* p_pio

configure xdmac for spi and ready to transfer/receive.

Parameters

pspi	Base address of the SPI

Referenced by pio_configure_pin(), pio_disable_pin_interrupt(), pio_enable_pin_interrupt(), pio_get_pin_group(), pio_get_pin_value(), pio_set_pin_high(), pio_set_pin_low(), pio_toggle_pin(), and spi_rw().

Pio* p_pio_cs

PIO instance used by CS.

Referenced by nm_bus_init().

volatile uint8_t rx_irq_complete

Referenced by spi_xdmac_configure(), and XDMAC_Handler().

volatile uint8_t tx_irq_complete

Referenced by spi_xdmac_configure(), and XDMAC_Handler().

volatile uint8_t xdma_irq_complete = 0

Referenced by XDMAC_Handler().

xdmac_channel_config_t xdmac_rx_cfg

static

xdmac_channel_config_t xdmac_tx_cfg

static

XDMAC channel configuration.