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Device Driver BSP Functions

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NetDev_WiFi_CfgClkStart()

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This function is called by a device driver’s NetDev_InitStart() to configure a specific network device’s clocks on a specific interfacestart and power up the wireless hardware.

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Files

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Table Row (tr) Table Cell (td) rowspan 2 Anchor 1106794 1106794 static void NetDev_CfgClk WiFi_Start (NET_IF *pifp_if, Anchor 113599111515421135991 1151542 NET_ERR *perrp_err); Table Row (tr)

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Note: since NetDev_CfgClkWiFi_Start() 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’.

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Arguments

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pif p_if

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Pointer to specific interface to configure start device’s clockshardware.

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perr p_err

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Pointer to variable that will receive the return error code from this function:

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NET_DEV_ERR_NONE

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NET_DEV_ERR_FAULT

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This is not an exclusive list of return errors and specific network device’s or device BSP functions may return any other specific errors as required.

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Notes / Warnings

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Each network device’s NetDev_CfgClk() should configure and enable all required clocks for the network device. For example, on some devices it may be necessary to enable clock gating for an embedded Ethernet MAC as well as various GPIO modules in order to configure Ethernet Phy pins for (R)MII mode and interrupts.

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Since each network device requires a unique NetDev_WiFi_CfgClkStart(), it is recommended that each device’s NetDev_WiFi_CfgClkStart() function be named using the following convention:

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NetDev_WiFi_[Device]CfgClk_Start[Number]()

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[Device]

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

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[Number]

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

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For example, the NetDev_WiFi_CfgClkStart() function for the #2 MACB Ethernet controller on an Atmel AT91SAM9263-EK RS9110 wireless devie should be named NetDev_MACBWiFi_RS9110_CfgClk2Start2(), or NetDev_WiFI_MACBRS9110_CfgClkStart_2() with additional underscore optional. Anchor11069141106914 See also Chapter 6, “Network Board Support Package” on page 121.