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This function is called by a device driver to disable the SPI chip select of the wireless device.

Files

net_bsp.c

Prototype

Note that since NetDev_WiFi_SPI_ChipSelDis() is accessed only by function pointer via a BSP interface structure, it doesn’t need to be globally available and should therefore be declared as ‘static’.

Arguments

p_if

Pointer to specific interface to enable the chip select.

Returned Value

None.

Required Configuration

None.

Notes / Warnings

  • 1 NetDev_WiFi_SPI_ChipSelDis() should be called only after the SPI lock has been acquired by calling NetDev_WiFi_SPI_Lock().
  • 2 Since each network device requires a unique NetDev_WiFi_SPI_ChipSelDis(), it is recommended that each device’s NetDev_WiFi_SPI_ChipSelDis() function be named using the following convention:

    • NetDev_WiFi_[Device]SPI_ChipSelDis[Number]()
    [Device]

    Network device name or type, e.g. RS9110 (optional if the development board does not support multiple devices)

    [Number]

    Network device number for each specific instance of device (optional if the development board does not support multiple instances of the specific device)

    For example, the NetDev_WiFi_SPI_ChipSelDis() function for the #2 RS9110 wireless device on an Atmel AT91SAM9263-EK should be named NetDev_WiFi_RS9110_SPI_ChipSelDis2(), or NetDev_WiFi_RS9110_SPI_ChipSelDis_2() with additional underscore optional.

    See also Chapter 6, “Network Board Support Package”.

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