nm_bus_wrapper_samd21.c File Reference

This module contains WINC3400 bus wrapper APIs implementation.

Copyright (c) 2017-2021 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 "spi.h"
#include "port.h"
#include "conf_winc.h"
#include <asf.h>

Macros
#define	NM_BUS_MAX_TRX_SZ   256

Functions
sint8	nm_bus_deinit (void)
	De-initialize the bus wrapper. More...
sint8	nm_bus_init (uint8 *pvinit, uint32 req_serial_number)
sint8	nm_bus_ioctl (uint8 u8Cmd, void *pvParameter)
sint8	nm_bus_reinit (void *config)
sint8	nm_spi_rw (uint8 *pu8Mosi, uint8 *pu8Miso, uint16 u16Sz)
static sint8	spi_rw_pio (uint8 *pu8Mosi, uint8 *pu8Miso, uint16 u16Sz)

Variables
tstrNmBusCapabilities	egstrNmBusCapabilities
struct spi_module	master
struct spi_slave_inst	slave_inst

#define NM_BUS_MAX_TRX_SZ   256

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_I2C_SCL, CONF_WINC_I2C_SDA, CONF_WINC_SPI_MISO, CONF_WINC_SPI_MOSI, CONF_WINC_SPI_SCK, CONF_WINC_SPI_SS, port_config::direction, port_config::input_pull, M2M_SUCCESS, master, nm_bsp_deinit(), port_get_config_defaults(), PORT_PIN_DIR_INPUT, PORT_PIN_PULL_NONE, port_pin_set_config(), and spi_disable().

Referenced by nm_bus_iface_deinit().

sint8 nm_bus_init	(	uint8 *	pvinit,
		uint32	req_serial_number
	)

References spi_master_config::baudrate, CONF_WINC_SPI_CLOCK, CONF_WINC_SPI_CS_PIN, CONF_WINC_SPI_MODULE, CONF_WINC_SPI_PINMUX_PAD0, CONF_WINC_SPI_PINMUX_PAD1, CONF_WINC_SPI_PINMUX_PAD2, CONF_WINC_SPI_PINMUX_PAD3, CONF_WINC_SPI_SERCOM_MUX, M2M_ERR_BUS_FAIL, M2M_SUCCESS, master, spi_config::master, spi_config::mode_specific, spi_config::mux_setting, nm_bsp_reset(), nm_bsp_sleep(), spi_config::pinmux_pad0, spi_config::pinmux_pad1, spi_config::pinmux_pad2, spi_config::pinmux_pad3, slave_inst, spi_attach_slave(), spi_enable(), spi_get_config_defaults(), spi_init(), spi_slave_inst_get_config_defaults(), spi_slave_inst_config::ss_pin, and STATUS_OK.

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, nm_spi_rw(), tstrNmI2cDefault::pu8Buf, tstrNmI2cSpecial::pu8Buf1, tstrNmI2cSpecial::pu8Buf2, tstrNmSpiRw::pu8InBuf, tstrNmSpiRw::pu8OutBuf, tstrNmI2cDefault::u16Sz, tstrNmSpiRw::u16Sz, tstrNmI2cSpecial::u16Sz1, and tstrNmI2cSpecial::u16Sz2.

sint8 nm_bus_reinit

(

void *

config

)

References M2M_SUCCESS.

sint8 nm_spi_rw	(	uint8 *	pu8Mosi,
		uint8 *	pu8Miso,
		uint16	u16Sz
	)

References spi_rw_pio().

Referenced by nm_bus_ioctl(), nmi_spi_read(), nmi_spi_write(), and nmi_spi_writeread().

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

inlinestatic

References M2M_ERR_BUS_FAIL, M2M_SUCCESS, master, slave_inst, spi_is_ready_to_read(), spi_is_ready_to_write(), spi_is_write_complete(), spi_read(), spi_select_slave(), spi_write(), and STATUS_OK.

Referenced by nm_spi_rw().

tstrNmBusCapabilities egstrNmBusCapabilities

Initial value:

=
{
    NM_BUS_MAX_TRX_SZ
}

Referenced by nm_read_block(), and nm_write_block().

struct spi_module master

Referenced by nm_bus_deinit(), nm_bus_init(), and spi_rw_pio().

struct spi_slave_inst slave_inst

Referenced by nm_bus_init(), and spi_rw_pio().