gspx-pxa.c

Wince BSP 下的Wifi 驱动 基于PXA270 CPU

void	pxa_gspi_deinit(PSSP_HARDWARE_CONTEXT	pDC)
{
	PSSP_HARDWARE_CONTEXT	pHC = (PSSP_HARDWARE_CONTEXT)pDC;
	EnterCriticalSection(&pHC->SSPCrit); 

	CloseHandle(pHC->waitqueue);
	gspx_power_down(pHC);
	ssp_deinit_hw(pHC);
	
	LeaveCriticalSection(&pHC->SSPCrit); 
	DeleteCriticalSection(&(pHC->SSPCrit));

	if (LocalFree(pHC))
	{
		DEBUGMSG(ZONE_ERROR, (TEXT("pxa_gspi_deinit: free pHC error!\n")));
	}

	return;
}


BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
					 )
{
    switch (ul_reason_for_call)
	{
		case DLL_PROCESS_ATTACH:
			DEBUGREGISTER(hModule);
            DEBUG_INIT();
		    DEBUGMSG(ZONE_INIT, (TEXT("GSPX DllMain: DLL_PROCESS_ATTACH\n")));
		    DEBUGMSG(ZONE_INIT, (TEXT("Build date: ")TEXT(__DATE__)TEXT(" ")TEXT(__TIME__)TEXT("\n")));
		    DisableThreadLibraryCalls((HMODULE) hModule);
			break;
        case DLL_THREAD_ATTACH:
			break;
		case DLL_THREAD_DETACH:
			break;
		case DLL_PROCESS_DETACH:
		    DEBUGMSG(ZONE_INIT, (TEXT("GSPX DllMain: DLL_PROCESS_DETACH\n")));
            DEBUG_HALT();
			break;
    }
    return TRUE;
}

int gspx_read_intstate(PVOID hDC)
{
	PSSP_HARDWARE_CONTEXT	pHC;
	DWORD			gplr, gedr;
	DWORD			resval;

	if (hDC == NULL) {
		resval = 0;
		goto funcfinal;
	}
	pHC = (PSSP_HARDWARE_CONTEXT) hDC;

	gedr = pHC->pGPIORegs->GEDR0;
	gplr = pHC->pGPIORegs->GPLR0;
	GSPIMSG(1, (L"(GPLR0, GEDR): (%08xh, %08xh) \n", gplr, gedr));
	resval = (gplr >> SSP_INTR)&1;
funcfinal:
	return resval;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_read_reg8
// Description:
// Parameters:
// Return:
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_read_reg8(PVOID hDC, WORD reg, BYTE *data)
{
	GSPI_STATUS status;	
	WORD	regdata;
	status = ssp_read_register(hDC, &regdata, reg);
	///ssp_read_data_direct(ssphc, &regdata, reg, 1, g_spi_dummy_clk_reg);
	*data = (BYTE)regdata;
	return (status == GSPI_SUCCESS);
}

#endif

/*******************************************************************************
	Customer Section:
 
	gspx_ section: user customizes following functions
 
	fucntions are used by outside the controller
 *******************************************************************************/
///////////////////////////////////////////////////////////////////////////////
// Function: gspx_init
// Description:
//     Initializes a GSPI host controller so that the other required API 
//     functions can be implemented. The initialization typically includes 
//     memory mapping, interrupt, GPIO pin initialization, etc
// Parameters:
//     None
// Return:
//	   Pointer to the OEM defined GSPI host device context on success, and 
//     NULL on failure. The returned device context is passed back to the DLL 
//     in subsequent calls to the DLL.
///////////////////////////////////////////////////////////////////////////////
PVOID gspx_init(VOID)
{
	PVOID handle;

    DEBUGMSG(ZONE_FUNC, (TEXT("GSPX_init(): PXA270\n")));
	handle = pxa_gspi_Init();
	///crlo:verion-check ++
	if (handle== 0) {
		handle = NULL;
		goto funcFinal;
	}
	///crlo:verion-check --
//###xlin moveed to gspx_set_callback pxa_gspi_register_isr(handle, pSpiParam, (ISRFUNC)SPINdisInterruptCallback);
	///crlo:verion-check ++
funcFinal:
	return handle;
	///crlo:verion-check --
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_deinit
// Description:
//     Deinitializes the GSPI controller initialized by gspx_init(). This 
//     typically includes unmapping memories, unallocating interrupt, freeing 
//     critical sections, and other resources allocated by the DLL. 
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
// Return:
//	   None
///////////////////////////////////////////////////////////////////////////////
//BOOL pxa_gspi_Deinit(PVOID hDC)
VOID gspx_deinit(PVOID hDC)
{
	BOOL	result = TRUE;
	PSSP_HARDWARE_CONTEXT	pHC = (PSSP_HARDWARE_CONTEXT)hDC;

  	DEBUGMSG(ZONE_FUNC, (TEXT("GSPX_deinit(): PXA270\n")));
	//ENTERFUNC();
	if (pHC == NULL) {
		GSPIMSG(ERRMSG, (TEXT("Allocate SSP_HARDWARE_CONTEXT FAILED")));
		result = FALSE;
		goto funcFinal;
	}
	pxa_gspi_deinit(pHC);
funcFinal:
	GSPIMSG(PROGFLOW, (TEXT("Exit %s (%xh) \n"), TEXT(__FUNCTION__), result));
	return; //result;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_set_ist_callback
// Description:
//     The WLAN calls this function to setup a callback to process the WLAN 
//     interrupts
// Parameters:
//     pHC     - Pointer to the device context returned by gspx_init().
//     cb      - Pointer to the callback function in the WLAN driver.
//     context - The WLAN driver supplied context data which is passed back
//               as the function parameter
// Return:
//     The ID of the system interrupt allocated by gspx_init()
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_set_ist_callback(PVOID pHC, PVOID cb, PVOID context)
{
	pxa_gspi_register_isr(pHC, context, cb);
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_get_clock_rate
// Description:
//     Gets the current GSPI host controller clock speed
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
// Return:
//     The host controller clock speed in Hz
///////////////////////////////////////////////////////////////////////////////
UINT32 gspx_get_clock_rate(PVOID pHC)
{
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_set_clock_rate
// Description:
//     Sets the GSPI host controller's clock speed. If the controller does not
//     support the exact speed requested, the speed shall be set to the next 
//     lower speed supported.
// Parameters:
//     pHC  - Pointer to the device context returned by gspx_init().
//     rate - Clock rate to set to in Hz.
// Return:
//     TRUE on success, and FALSE on failure.     
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_set_clock_rate(PVOID pHC, UINT32 rate)
{
	if(rate != GSPI_BUS_CLK_RATE)
		return FALSE;
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_set_clocking_edge
// Description:
//     Sets the host to use rising or falling edge to clock data in.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
//     rise_fall - 1 for rising edge, and 0 for falling edge
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_set_clocking_edge(PVOID pHC, BOOL raise_fall)
{
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_set_read_delay
// Description:
//     Sets register read delay in number of clocks
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
//     reg - Read Register delay in multiple of 16 clocks.
//     io  - Port Register delay in multiple of 16 clocks.
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_set_read_delay(PVOID pHC, UINT16 reg, UINT16 io)
{
	g_spi_dummy_clk_reg  = reg;
	g_spi_dummy_clk_data = io;
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_reset_module
// Description:
//     Resets the WLAN module by resting the RESET pin on the WLAN module.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
// Return:
//     None
///////////////////////////////////////////////////////////////////////////////
VOID gspx_reset_module(PVOID pHC)
{
	PSSP_HARDWARE_CONTEXT pContext = (PSSP_HARDWARE_CONTEXT) pHC;
    DEBUGMSG(ZONE_FUNC, (TEXT("+gspx_reset_module()\n")));
	EnterCriticalSection(&pContext->SSPCrit);  //JKU
	set_GPIO_signal(pContext->pGPIORegs, SSP_RST, SIG_UP);
	udelay(pContext->pOSTRegs, 5000);
	set_GPIO_signal(pContext->pGPIORegs, SSP_RST, SIG_DOWN);  //JKU: pin 11 to reset
	udelay(pContext->pOSTRegs, 5000);
	set_GPIO_signal(pContext->pGPIORegs, SSP_RST, SIG_UP);
	udelay(pContext->pOSTRegs, 10000);
	LeaveCriticalSection(&pContext->SSPCrit);  //JKU
    DEBUGMSG(ZONE_FUNC, (TEXT("-gspx_reset_module()\n")));
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_read_reg16
// Description:
//     Reads a 16-bit value from a single register.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
//     reg - Register address to read from.
//     data - A 16-bit value read from the register.
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_read_reg16(PVOID pHC, UINT16 reg, UINT16 *data)
{
	GSPI_STATUS status;	
	status = ssp_read_register(pHC, data, reg);
	return (status == GSPI_SUCCESS);
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_write_reg16
// Description:
//     Writes to a single register a 16-bit value.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
//     reg - Register address to write to.
//     data - A 16-bit value to write.
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_write_reg16(PVOID pHC, UINT16 regaddr, UINT16 regdata)
{
	GSPI_STATUS status;
	WORD word = regdata;
	status = ssp_write_register(pHC, regaddr, &word);
	return (status == GSPI_SUCCESS);
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_read_reg32
// Description:
//      Reads a 32-bit value from a single register.
// Parameters:
//      pHC - Pointer to the device context returned by gspx_init().
//      reg - Register address to read from.
//      data - A 32-bit value read from the register.
// Return:
//      TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_read_reg32(PVOID pHC, UINT16 reg, UINT32 *data)
{
	GSPI_STATUS status;	
	WORD	*regaddr = (WORD	*)reg;
	WORD	*regdatPt = (WORD*)data;

	status = ssp_read_register(pHC, regdatPt, (WORD)regaddr);
	status = ssp_read_register(pHC, (regdatPt+1), (WORD)(regaddr+1));
	return (status == GSPI_SUCCESS);
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_write_reg32
// Description:
//     Writes to a single register a 32-bit value.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
//     reg - Register address to write to.
//     data - A 32-bit value to write
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_write_reg32(PVOID pHC, UINT16 reg, UINT32 data)
{
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_read_mem
// Description:
//     Reads a buffer from the port on the WLAN module.
// Parameters:
//     pHC   - Pointer to the device context returned by gspx_init().
//     reg   - Address to read from.
//     nword - Number of 16-bit values to read.
//     datPt - Caller supplied buffer for storing the data read.
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_read_mem(PVOID pHC,UINT16 reg, UINT16 nword, UINT16* datPt)
{
	GSPI_STATUS status;	
	status = ssp_read_data(pHC, datPt, reg, nword);
	return (status == GSPI_SUCCESS);
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_write_mem
// Description:
//     Writes a buffer to the port on the WLAN module.
// Parameters:
//     pHC   - Pointer to the device context returned by gspx_init().
//     reg   - Address to write to.
//     nword - Number of 16-bit values to write.
//     datPt - Pointer to the data buffer to write.
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL gspx_write_mem(PVOID pHC, UINT16 regaddr, UINT16 nword, UINT16* datPt)
{
	GSPI_STATUS status;
	status = ssp_write_data(pHC,datPt,regaddr,nword);
	return (status == GSPI_SUCCESS);
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_power_up
// Description:
//     Power up the WLAN module.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_power_up(PVOID pHC)
{
	PSSP_HARDWARE_CONTEXT pContext = (PSSP_HARDWARE_CONTEXT) pHC;
	set_GPIO_signal(pContext->pGPIORegs, SSP_RST, SIG_UP);
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// Function: gspx_power_down
// Description:
//     Power down the WLAN module.
// Parameters:
//     pHC - Pointer to the device context returned by gspx_init().
// Return:
//     TRUE on success, and FALSE on failure.
///////////////////////////////////////////////////////////////////////////////
BOOL  gspx_power_down(PVOID pHC)
{
	PSSP_HARDWARE_CONTEXT pContext = (PSSP_HARDWARE_CONTEXT) pHC;
	set_GPIO_signal(pContext->pGPIORegs, SSP_RST, SIG_DOWN);
	return TRUE;
}