UTS6710/drivers/hdmi/533/mhl/cbus_app.c

//***************************************************************************
//!file     app_cbus.c
//!brief    Wraps board and device functions for the CBUS component
//          and the application
//
//***************************************************************************/
#include <linux/kernel.h>  /* printk */
#include <linux/string.h>
#include "drv_types.h"
#include "cbus_app.h"
#include "cbus_mid.h"
#include "cbus_drv.h"
#include <drv2kmf.h>
#include <drv_event.h>
#include "../hdmi_hw.h"
#include "../hdmi_cfg.h"
#include "../../../module_include/drv_hdmi_internal.h"
//#include "../hdmi_hpd.h"
#include "../hdmi_notice.h"
#include "../sysreg.h"
#include "../hdmi_time.h"
#include "../hdmi_processing.h"

//#include <linux/string.h>

//#include "pin_config.h"
#include "../../../module_include/drv_gpio.h"
//#include "drivers/drv_hdmi.h"
//#include "pin_allocator.h"

//------------------------------------------------------------------------------
// Module variables
//------------------------------------------------------------------------------
static CBUS_APP_FSM_STATE_e eCbusAppState = CBUS_APP_FSM_UNATTACHED, eCbusAppNextState = CBUS_APP_FSM_UNATTACHED;
static UINT32 HPDWaitConnectedCnt = 0;
static UINT32 WaitDiscvCnt = 0;


static MHLAppInstanceData_t MHLAppInstanceData=
{
	0,				// statusFlags
	// CBUS App-specific
	FALSE,			// discvDetect;
	FALSE,			//cbusCableSense
	FALSE,			//Cbus connected
};

MHLAppInstanceData_t *pMHLApp = &MHLAppInstanceData;

void CbusAppInitialize(void)
{
	eCbusAppNextState = CBUS_APP_FSM_UNATTACHED;
}

//------------------------------------------------------------------------------
// Function:    CbusAppProcessRecvRcpMsg
// Description: Process the passed RCP message.
// Returns:     The RCPK status code.
//------------------------------------------------------------------------------

static UINT8 CbusAppProcessRecvRcpMsg(MHL_RCP_CMD_e rcpData)
{
	MHL_RCPE_STATUS_e rcpkStatus = MHL_MSC_MSG_RCP_NO_ERROR;

	mhldbg("[%s] RCP Key Code: 0x%02X\n", __FUNCTION__, (INT32)rcpData);

	switch ( rcpData )
	{
		case MHL_RCP_CMD_SELECT:
			printk("[MHL]SELECT received\n" );
			break;
		case MHL_RCP_CMD_UP:
			printk("[MHL]UP received\n" );
			break;
		case MHL_RCP_CMD_DOWN:
			printk("[MHL]DOWN received\n" );
			break;
		case MHL_RCP_CMD_ROOT_MENU:
			printk("[MHL]ROOT_MENU received\n" );
			break;
		case MHL_RCP_CMD_EXIT:
			printk("[MHL]EXIT received\n" );
			break;
		case MHL_RCP_CMD_VOL_UP:
			printk("[MHL]VOL_UP received\n" );
			break;
		case MHL_RCP_CMD_VOL_DOWN:
			printk("[MHL]VOL_DOWN received\n" );
			break;
		default:
			printk("[MHL] un-support RCP key received 0x%x\n", rcpData);
			rcpkStatus = MHL_MSC_MSG_INEFFECTIVE_KEY_CODE;
			break;
	}

	if ( rcpkStatus == MHL_MSC_MSG_RCP_NO_ERROR )
	{
		noticekmf(KMF2UMF_EVID_HDMI, KMF2UMF_EVTYPE_HDMI_MHL_RCP_CMD, (UINT8 *)&rcpData, sizeof(MHL_RCP_CMD_e));			
	}

	return( rcpkStatus );
}

//------------------------------------------------------------------------------
// Function:    CbusAppProcessRecvRapMsg
// Description: Process the passed RAP message.
// Returns:     The RAPK status code.
//------------------------------------------------------------------------------

static MHL_RAPE_STATUS_e CbusAppProcessRecvRapMsg(MHL_RAP_SUBCMD_e rapData)
{
	MHL_RAPE_STATUS_e rapkStatus = MHL_MSC_MSG_RAP_NO_ERROR;

	mhldbg("[%s] RAP Key Code: 0x%02X\n", __FUNCTION__, (INT32)rapData);

	switch ( rapData )
	{
		case MHL_RAP_CMD_POLL:
			mhldbg("POLL received\n" );
			break;
		case MHL_RAP_CONTENT_ON:
			mhldbg("Change TO CONTENT_ON STATE received\n" );
			HDMI_NoticeHandler(HDMINOTICE_MHL_CONTENT_ON, "MHL_RAP_CONTENT_ON");
			break;
		case MHL_RAP_CONTENT_OFF:
			mhldbg("Change TO CONTENT_OFF STATE received\n" );
			HDMI_NoticeHandler(HDMINOTICE_MHL_CONTENT_OFF, "MHL_RAP_CONTENT_OFF");
			break;
		default:
			rapkStatus = MHL_MSC_MSG_RAP_UNRECOGNIZED_ACT_CODE;
			mhldbg("Action Code not recognized !! \n" );
			break;
	}

	return( rapkStatus );
}

//------------------------------------------------------------------------------
// Function:    CbusAppProcessPrivateMessage
// Description: Get the result of the last message sent and use it appropriately
//              or process a request from the connected device.
// Parameters:  channel - CBUS channel that has message data for us.
//------------------------------------------------------------------------------

static void CbusAppProcessPrivateMessage(void)
{
	UINT8     status;
	//cbus_req_t  cmdRequest;
	UINT8 bCmdType, bData;

	//CbusMidRequestDataGet( &cmdRequest);
	if(CbusMidRequestDataGet( &bCmdType, &bData) == ERROR_INVALID)
		return;
	
	//mhldbg("[%s] received 0x%x 0x%x\n", __FUNCTION__, bCmdType, bData);
	switch ( bCmdType )
	{
		case MHL_MSC_MSG_RCP:
			/* Acknowledge receipt of command and process it.  Note that    */
			/* we could send the ack before processing anything, because it */
			/* is an indicator that the command was properly received, not  */
			/* that it was executed, however, we use one function to parse  */
			/* the command for errors AND for processing. The only thing we */
			/* must do is make sure that the processing does not exceed the */
			/* ACK response time limit.                                     */
			status = CbusAppProcessRecvRcpMsg( bData );
			//RCP ACK by HW
			//CbusRcpMessageAck(status, cmdRequest.offsetData );
			break;
		case MHL_MSC_MSG_RCPK:
			break;
		case MHL_MSC_MSG_RCPE:
			break;
		case MHL_MSC_MSG_RAP:
			status = CbusAppProcessRecvRapMsg( bData );
			CbusMidRapMessageAck(status );
			break;
		case MHL_MSC_MSG_RAPK:
			break;
		default:
			break;
	}
}

//------------------------------------------------------------------------------
// Function:    CbusAppDeviceInit
// Description: Perform any board-level initialization required at the same
//              time as CBUS component initialization
// Parameters:  none
// Returns:     none
//------------------------------------------------------------------------------

void CbusAppDeviceInit(void)
{
	mhldbg("[%s]\n", __FUNCTION__);	
	CbusAppInitialize();
	CbusMidInitialize();
	CbusDrvInitialize();
}

void DRV_MHL_GetMHLAppInstanceData(MHLAppInstanceData_t * pMHLdata)
{
	if(NULL == pMHLdata)
		return;

	memset(pMHLdata,0x0,sizeof(MHLAppInstanceData_t));
	memcpy(pMHLdata,pMHLApp,sizeof(MHLAppInstanceData_t));
	
	mhldbg("[%s]  MHLConnected: %d \n", __FUNCTION__,pMHLApp->cbusConnected);	
}

//------------------------------------------------------------------------------
// Function:    CbusAppTask
// Description: Wrapper for the CBUS Component at the application level
// Parameters:  none
// Returns:     none
//------------------------------------------------------------------------------
void CbusAppTask(void)
{
//	UINT8 status;
BOOL fCbusConnected=FALSE;
	// Check for any interrupt.
	CbusDrvProcessInterrupts();
	
	MHLTaskInterruptMonitor();

	/* Monitor all CBUS channels.   */
	CbusMidHandler();     // Monitor CBUS interrupts.

	/* do something at changing state once */
	if(eCbusAppState != eCbusAppNextState)
	{
		mhldbg("[%s] state:%d -> %d\n", __FUNCTION__, eCbusAppState, eCbusAppNextState);
		switch(eCbusAppNextState)
		{
			case CBUS_APP_FSM_UNATTACHED:
				CbusMidInitialize();
				if(GPIOGetValueByPinFunc(GPIO_PIN_MHL_CD_SENSE_DETECT)==0)
				{
					MHLTaskCableDetect(FALSE);
					fCbusConnected=FALSE;
					HPDWaitConnectedCnt=0;
					WaitDiscvCnt =0;
				}
				pMHLApp->cbusConnected =fCbusConnected ;
				noticekmf(KMF2UMF_EVID_HDMI, KMF2UMF_EVTYPE_HDMI_MHL_CONNECTED, &fCbusConnected, sizeof(BOOL));			
				break;
			case CBUS_APP_FSM_ATTATCHED:
				MHLTaskCableDetect(TRUE);
				break;
			case CBUS_APP_FSM_CONNECTED:
				CbusMidSetDevCapReadyBit(FALSE);
				fCbusConnected=TRUE;
				HPDWaitConnectedCnt=0;
				pMHLApp->cbusConnected =fCbusConnected ;
				noticekmf(KMF2UMF_EVID_HDMI, KMF2UMF_EVTYPE_HDMI_MHL_CONNECTED, &fCbusConnected, sizeof(BOOL));			
				mhldbg("[%s] KMF2UMF_EVTYPE_HDMI_MHL_CONNECTED :%d\n", __FUNCTION__ ,fCbusConnected);	
				/* Remove no signal timer */
	        	hdmi_signal_check_stop();
				break;
			case CBUS_APP_FSM_PATH_ENABLED:
				break;
			default:
				break;

		}
		eCbusAppState = eCbusAppNextState;
	}
	if (CbusMidGet_HPD_Status()==FALSE)
	{
		if((eCbusAppState >= CBUS_APP_FSM_CONNECTED) && (pMHLApp->cbusCableSense == TRUE))
		{
			HPDWaitConnectedCnt++;
		}
		if(HPDWaitConnectedCnt>100)// *10ms
		{
			mhldbg("[%s] CbusMidSendCommand(MHL_SET_HPD)\n", __FUNCTION__);	
			CbusMidSendCommand(MHL_SET_HPD);
			HPDWaitConnectedCnt=0;
		}
	}
	else
	{
		HPDWaitConnectedCnt=0;
	}
	/* 1. check status to change state machine 
	     2. check received RCP & RAP after PATH_EN*/
	switch(eCbusAppState)
	{
		case CBUS_APP_FSM_UNATTACHED:
			if(pMHLApp->cbusCableSense == TRUE)
				eCbusAppNextState = CBUS_APP_FSM_ATTATCHED;
			break;
		case CBUS_APP_FSM_ATTATCHED:	//have CD_SENSE
			if(WaitDiscvCnt<=50)// *10ms
			{
				mhldbg("WaitDiscvCnt=%d.\n",WaitDiscvCnt);
				if(WaitDiscvCnt==50)
				{
					mhldbg("WaitDiscvCnt=%d=>TOGGLE MHL_VbusCtrl.\n",WaitDiscvCnt);
					MHL_VbusCtrl(VBUS_DISABLE);
					HDMI_DelayMs(500);
					MHL_VbusCtrl(VBUS_ENABLE);
				}	
				WaitDiscvCnt++;
			}
			break;
		case CBUS_APP_FSM_CONNECTED:	//got discovery pulse
			if(CbusMidSendPathEn_RcvdAck())
			{
				eCbusAppNextState = CBUS_APP_FSM_PATH_ENABLED;
				CbusMidGetSrcDevCap(TRUE);//Get source's device capability
			}	
			else
			{
				if((CbusMidGetDevCapReadyBit() == FALSE) && (DrvHDMIPortSelectBitsGet()==CONFIG_HDMI_MHL_PORT))
					CbusMidSendDcapRdyMsg();	//send DCAP_CHG DCAP_RDY PATH_EN
			}
			break;
		case CBUS_APP_FSM_PATH_ENABLED:	//source sent PATH_EN
			//source's device capability changed, fetch it
			if(CbusDrvDevCapChangedGet() == TRUE)
			{
				CbusMidGetSrcDevCap(TRUE);
			}
			else
			{
				CbusMidGetSrcDevCap(FALSE);
			}
			//process received RCP or RAP command
			CbusAppProcessPrivateMessage();
			break;
		default:
			break;

	}

	if((pMHLApp->discvDetect == TRUE) && (eCbusAppState != CBUS_APP_FSM_UNATTACHED))
	{
		eCbusAppNextState = CBUS_APP_FSM_CONNECTED;
		pMHLApp->discvDetect = FALSE;
	}

	/* if CableDetect is False, change to UNATTACHED state */
	if((eCbusAppState != CBUS_APP_FSM_UNATTACHED) && (pMHLApp->cbusCableSense == FALSE))
		eCbusAppNextState = CBUS_APP_FSM_UNATTACHED;
}

//------------------------------------------------------------------------------
// Function:    MHLTaskCableDetect
// Description: MHLCableDetect at the application level
// Parameters:  none
// Returns:     none
//------------------------------------------------------------------------------
extern BOOL HAVE_MHL_ADOPTER_ID;

void MHLTaskCableDetect(BOOL fCdSense)
{
	if (fCdSense)//(MID_GPIO_GetGPIOInputLevel(GPIO_MHL_CD_SENSE))//Bryan@2013.0403 Need Config GPIO for MHL in IFH118
	{
		mhldbg("MHL cable connect is TRUE.\n");
		mhldbg("Cbus Reset Discovery Logic" );
		//CbusMidSetDevCapReadyBit(FALSE );
		HDMI_MHL_CABLE_IN(TRUE);
		#if 0
		/* Turn VBUS ON  */
		if( MHL_ADOPTER_ID_Check()== FALSE)
		{
			mhldbg("=>TOGGLE MHL_VbusCtrl.\n");
			MHL_VbusCtrl(VBUS_DISABLE);
			HDMI_DelayMs(500);
		}
		#endif
		MHL_VbusCtrl(VBUS_ENABLE);
#ifdef CONFIG_HDMI_MHL_PORT
		if( DrvHDMIPortSelectBitsGet()==CONFIG_HDMI_MHL_PORT)
		{
			//CbusMhlHpdSetState(CbusHPD_TOGGLE);//Bryan@20140506 Marked for MHL CTS 4.3.17.2
			HDMI_MHL_RxSense_Term_Debug(FALSE);	//auto HDMI or MHL mode)
			if(CONFIG_HDMI_MHL_PORT==0)
			{
				//hdmi_set_termination(DRV_HDMI_PORT_A, DRV_HPD_LEVEL_HIGH);
				sysset_HDMI_HPD_1K_OnOff(HDMI_PORT_A, FALSE);
			}
			else if(CONFIG_HDMI_MHL_PORT==1)
			{
				//hdmi_set_termination(DRV_HDMI_PORT_B, DRV_HPD_LEVEL_HIGH);
				sysset_HDMI_HPD_1K_OnOff(HDMI_PORT_B, FALSE);
			}
		}
		else
		{
			HDMI_MHL_RxSense_Term_Debug(TRUE);
		}
#endif
	}
	else
	{
		mhldbg("MHL cable connect is FALSE.\n");
		if(GPIOGetValueByPinFunc(GPIO_PIN_MHL_CD_SENSE_DETECT)==0)
		{
			mhldbg("=>MHL_VbusCtrl(VBUS_DISABLE).\n");
			MHL_VbusCtrl(VBUS_DISABLE);
		}	
		HDMI_MHL_CABLE_IN(FALSE);
#ifdef CONFIG_HDMI_MHL_PORT
		if( DrvHDMIPortSelectBitsGet()==CONFIG_HDMI_MHL_PORT)
		{
			HDMI_Set_PLL_Mode(HDMI_PLL_MODE_HDMI_ENABLE);
			HDMI_MHL_RxSense_Term_Debug(TRUE);	//force HDMI mode for debug(not MHL mode)
			#ifdef HDMI_HPD_USE_1K_OHM	
			if(CONFIG_HDMI_MHL_PORT==0)
			{
				//hdmi_set_termination(DRV_HDMI_PORT_A, DRV_HPD_LEVEL_LOW);
				sysset_HDMI_HPD_1K_OnOff(HDMI_PORT_A, TRUE);
			}
			else if(CONFIG_HDMI_MHL_PORT==1)
			{
				//hdmi_set_termination(DRV_HDMI_PORT_B, DRV_HPD_LEVEL_LOW);
				sysset_HDMI_HPD_1K_OnOff(HDMI_PORT_B, TRUE);
			}
			#endif
		}
#endif
	}
	noticekmf(KMF2UMF_EVID_HDMI, KMF2UMF_EVTYPE_HDMI_MHL_PLUG_STATE, &fCdSense, sizeof(BOOL));			
}



//-------------------------------------------------------------------------------------------------
//! @brief      Monitors interrupts and notifies components that have received
//!             an interrupt.
//-------------------------------------------------------------------------------------------------
void MHLTaskInterruptMonitor(void)
{
	CBUS_DRV_STATUS_e statusFlags;
	statusFlags =CbusDrvStatus();
	if ( statusFlags & CBUS_INT )// CBUS_INT
	{
	
		if ( statusFlags & CBUS_DISCV_INT )// CBUS_DISCV_INT
		{
			printk("[MHL]** CBUS_DISCV_INT  **\n");
			pMHLApp->discvDetect=TRUE;
			eCbusAppState= 0;
		}
		if ( statusFlags & CBUS_ATTACH_INT )// CBUS_ATTACH_INT
		{
			printk("[MHL]** CBUS_ATTACH_INT  **\n");
			pMHLApp->cbusCableSense = TRUE;

		}
		else if ( statusFlags & CBUS_DEATCH_INT )// CBUS_DEATCH_INT
		{
			printk("[MHL]** CBUS_DEATCH_INT  **\n");
			HAVE_MHL_ADOPTER_ID =FALSE;
			pMHLApp->cbusCableSense = FALSE;
		}	
	}

	if((pMHLApp->cbusCableSense = TRUE)&&(GPIOGetValueByPinFunc(GPIO_PIN_MHL_CD_SENSE_DETECT)==0))
	{
		HAVE_MHL_ADOPTER_ID =FALSE;
		pMHLApp->cbusCableSense = FALSE;
	}	
}