nm_bus_wrapper.h File Reference

This module contains WINC3400 bus wrapper APIs declarations.

Copyright (c) 2017-2019 Microchip Technology Inc. and its subsidiaries.

#include "common/include/nm_common.h"

Data Structures
struct	tstrNmBusCapabilities
	Structure holding bus capabilities information. More...
struct	tstrNmI2cDefault
	Structure holding I2C default operation parameters. More...
struct	tstrNmI2cSpecial
	Structure holding I2C special operation parameters. More...
struct	tstrNmSpiRw
	Structure holding SPI R/W parameters. More...
struct	tstrNmUartDefault
	Structure holding UART default operation parameters. More...

Macros
#define	NM_BUS_IOCTL_R   ((uint8)0)
	IOCTL commands. More...
#define	NM_BUS_IOCTL_RW   ((uint8)3)
#define	NM_BUS_IOCTL_W   ((uint8)1)
#define	NM_BUS_IOCTL_W_SPECIAL   ((uint8)2)
#define	NM_BUS_IOCTL_WR_RESTART   ((uint8)4)
#define	NM_BUS_TYPE_I2C   ((uint8)0)
	BUS Type. More...
#define	NM_BUS_TYPE_SPI   ((uint8)1)
#define	NM_BUS_TYPE_UART   ((uint8)2)

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

Variables
tstrNmBusCapabilities	egstrNmBusCapabilities

#define NM_BUS_IOCTL_R   ((uint8)0)

IOCTL commands.

Read only ==> I2C/UART. Parameter:tstrNmI2cDefault/tstrNmUartDefault

Referenced by nm_bus_ioctl().

#define NM_BUS_IOCTL_RW   ((uint8)3)

Read/Write at the same time ==> SPI only. Parameter:tstrNmSpiRw

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

#define NM_BUS_IOCTL_W   ((uint8)1)

Write only ==> I2C/UART. Parameter type tstrNmI2cDefault/tstrNmUartDefault

Referenced by nm_bus_ioctl().

#define NM_BUS_IOCTL_W_SPECIAL   ((uint8)2)

Write two buffers within the same transaction (same start/stop conditions) ==> I2C only. Parameter:tstrNmI2cSpecial

Referenced by nm_bus_ioctl().

#define NM_BUS_IOCTL_WR_RESTART   ((uint8)4)

Write buffer then made restart condition then read ==> I2C only. parameter:tstrNmI2cSpecial

#define NM_BUS_TYPE_I2C   ((uint8)0)

BUS Type.

#define NM_BUS_TYPE_SPI   ((uint8)1)

#define NM_BUS_TYPE_UART   ((uint8)2)

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 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 *	req_com_port,
		uint32	req_serial_number
	)

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().

sint8 nm_bus_reinit

(

void *

)

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

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().

tstrNmBusCapabilities egstrNmBusCapabilities

Referenced by nm_read_block(), and nm_write_block().