winc1500/host_drv/bus_wrapper/source/nm_bus_wrapper_sam4s.c File Reference

This module contains NMC1000 bus wrapper APIs implementation.

Copyright (c) 2016-2021 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	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	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 (void *pvinit)
sint8	nm_bus_ioctl (uint8 u8Cmd, void *pvParameter)

Variables
tstrNmBusCapabilities	egstrNmBusCapabilities

#define NM_BUS_MAX_TRX_SZ   4096

#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)

Referenced by nm_bus_init().

#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);}

sint8 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 M2M_SUCCESS.

sint8 nm_bus_init

(

void *

pvinit

)

References g_p_spim_pdc, gpio_configure_pin, M2M_ERR_INIT, M2M_SUCCESS, nm_bsp_reset(), nm_bsp_sleep(), pdc_disable_transfer(), 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_fixed_peripheral_select(), spi_set_master_mode(), spi_set_peripheral_chip_select_value(), spi_set_transfer_delay(), and sysclk_get_cpu_hz().

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, tstrNmI2cDefault::u16Sz, tstrNmSpiRw::u16Sz, tstrNmI2cSpecial::u16Sz1, and tstrNmI2cSpecial::u16Sz2.

tstrNmBusCapabilities egstrNmBusCapabilities

Initial value:

=
{
    NM_BUS_MAX_TRX_SZ
}

< Bus capabilities. This structure must be declared at platform specific bus wrapper