/*****************************************************************************\ File Name: keypad.c Description: This module contains KEYPAD device specific functions. Copyright(c) 2007 Analog Devices Incorporated. All Rights Reserved. Revision History: \*****************************************************************************/ /*****************************************************************************\ Includes: \*****************************************************************************/ #include /* system service includes */ #include #include #include "adi_ssl_init.h" #include "mediaplayer.h" #include /* Keypad driver includes */ /*****************************************************************************\ Defines: \*****************************************************************************/ #define KEYPAD_ARR_SIZE (10) /* number of KEYPAD commands that can be buffered */ /*#define USE_DEFERRED_CALLBACKS - be sure to not install DCB at IVG14 - IVG14 reserved by uCOS */ /*****************************************************************************\ Declarations: \*****************************************************************************/ /* handle to the driver*/ static ADI_DEV_DEVICE_HANDLE KeypadDriverHandle = NULL; OS_EVENT *keypad_Q; /* queue to hold KEYPAD commands */ void* keypad_arr[KEYPAD_ARR_SIZE]; /* Empty void* array to hold Q messages */ OS_EVENT *keypad_event; /* Lookup table for the Keypad */ u8 KeyTable[4][4] = { { 'F','E','D','C'}, { 'B','A','9','8'}, { '7','6','5','4'}, { '3','2','1','0'}, }; ADI_KPAD_KEY_PRESSED_RESULT KpadResult; section("sdram0_bank2_stack") static OS_STK stack[THRD_STACKSIZE * sizeof(OS_STK)]; /*****************************************************************************\ Externs: \*****************************************************************************/ extern OS_EVENT *mgr_application_Q; /*****************************************************************************\ Function Prototypes: \*****************************************************************************/ static void callback_keypad( void *AppHandle, u32 Event, void *pArg ); void thread_keypad(void *pInParam); u8 MapKey(u8 mode,u16 keycode); void launch_thread_keypad(void); int init_keypad_548(void); int close_keypad_548(void); /********************************************************************* Function: KeypadCallback Description: Ez-Kit callback service routine for KeyPad Events *********************************************************************/ section ("callback_code") static void callback_keypad(void *AppHandle,u32 Event,void *pArg ) { ADI_KPAD_KEY_PRESSED_RESULT *pResult; /* Case of (event type) */ switch (Event) { case ADI_KPAD_EVENT_KEYPRESSED: /* get the address of key pressed results buffer */ pResult = (ADI_KPAD_KEY_PRESSED_RESULT *)pArg; KpadResult.rowcolpos = pResult->rowcolpos; KpadResult.mrowcol = pResult->mrowcol; if(OSQPost(keypad_Q, &KpadResult)!= OS_NO_ERR) ezErrorCheck(1); /* wait for help */ break; default: /* other events */ break; } } /********************************************************************* Function: Init_Keypad Description: Initializes the keypad. *********************************************************************/ int init_keypad_548(void) { u32 Result = 0 ;/* assume success */ if((Result = adi_dev_Open( adi_dev_ManagerHandle, /* Dev manager Handle */ &ADIKPADEntryPoint, /* Device Entry point */ 0, /* Device number */ NULL, /* No client handle */ &KeypadDriverHandle, /* DevMgr handle for this device */ ADI_DEV_DIRECTION_UNDEFINED, /* data direction not used */ NULL, /* Handle to DMA Manager */ adi_dcb_QueueHandle, /* Handle to callback manager */ callback_keypad)) /* Callback Function */ != ADI_DEV_RESULT_SUCCESS) { if(APP_TRACE_LEVEL) { APP_TRACE("Open Keypad driver Failed!, Error Code: 0x%08X\n",Result); } return (Result); } ADI_DEV_CMD_VALUE_PAIR KeypadConfig[]= { { ADI_KPAD_CMD_SET_ROW_NUMBER, (void *)3 }, /* Enable Row 0-3 */ { ADI_KPAD_CMD_SET_COLUMN_NUMBER, (void *)3 }, /* Enable Column 0-3 */ { ADI_KPAD_CMD_SET_IRQMODE, (void *)2 }, /* Enable single & multiple key press interrupt */ { ADI_KPAD_CMD_SET_DBON_COLDRV_TIME,(void *)8 }, /* Set de-bounce time delay as 8ms */ { ADI_DEV_CMD_END, NULL } /* Terminate config table */ }; if((Result = adi_dev_Control(KeypadDriverHandle, ADI_DEV_CMD_TABLE, (void *)KeypadConfig))!= ADI_DEV_RESULT_SUCCESS) { if(APP_TRACE_LEVEL) { APP_TRACE("Failed to configure Kepad controller registers, Error Code: 0x%08X\n",Result); } return (Result); } /**************** Enable Keypad ****************/ if((Result = adi_dev_Control(KeypadDriverHandle, ADI_KPAD_CMD_SET_KPAD_ENABLE, (void *)TRUE))!= ADI_DEV_RESULT_SUCCESS) { if(APP_TRACE_LEVEL) { APP_TRACE("Failed to enable Keypad, Error Code: 0x%08X\n",Result); } return (Result); } /* launch the KPAD handle thread */ launch_thread_keypad(); return (Result); } /********************************************************************* Function: close_keypad Description: close the keypad. *********************************************************************/ int close_keypad_548(void) { u32 Result= ADI_DEV_RESULT_SUCCESS; /* disable Keypad */ if (Result == ADI_DEV_RESULT_SUCCESS) Result = adi_dev_Control(KeypadDriverHandle, ADI_KPAD_CMD_SET_KPAD_ENABLE, (void *)FALSE); if (Result == ADI_DEV_RESULT_SUCCESS) Result = adi_dev_Close(KeypadDriverHandle); return (Result); } /********************************************************************* Function: launch_thread_keypad Parameters: None Return: None Description: Launches the KEYPAD handle thread which handles all KEYPAD input keys *********************************************************************/ void launch_thread_keypad(void) { /*OS_STK *stack;*/ int Result; INT32U i; /* Create KEYPAD command Queue */ keypad_Q = OSQCreate(keypad_arr, KEYPAD_ARR_SIZE); keypad_event = keypad_Q; Result = OSTaskCreateExt(thread_keypad, (void *)keypad_event, &stack[THRD_STACKSIZE -1], THRD_PRIORITY_KPAD, THRD_PRIORITY_KPAD, &stack[0], THRD_STACKSIZE , (void *)0, OS_TASK_OPT_STK_CHK ); if(Result && APP_TRACE_LEVEL) { APP_TRACE("OSTaskCreateExt:thread_keypad failed %d\n",Result); ezErrorCheck(1); /* wait for help */ } }/* end of launch_thread_keypad */ /***************************************************************************** Function: MapKey Description: Maps key(s) pressed to the Keypad lookup table *****************************************************************************/ u8 MapKey(u8 mode,u16 keycode) { u8 Col, Row, key; key = 0; /* IF (single key pressed) */ if (mode == 1) { /*get the column position*/ Col = (u8)((keycode & 0x0f00) >> 9); if(Col > 3) { Col = 3; /* column limit */ } /*get the row position*/ Row = (u8)((keycode & 0x000f) >> 1); if(Row > 3) { Row = 3; /* row limit */ } key = KeyTable[Col][Row]; } return key; } /***************************************************************************** Function: thread_keypad Description: Keypad Thread task *****************************************************************************/ void thread_keypad(void *pInParam) { INT8U err; ADI_KPAD_KEY_PRESSED_RESULT *pResult; MPPMESSAGE MessageToApp; u8 key; bool validKey; OS_EVENT *queue; queue = keypad_event; while(1) { /* pend on message queue */ pResult = (ADI_KPAD_KEY_PRESSED_RESULT *) OSQPend (queue, 0, &err); if (err && APP_TRACE_LEVEL) { APP_TRACE("KPAD OSQPend error:%d\n",err); } /* Map this key press to the lookup table */ key = MapKey(pResult->mrowcol,pResult->rowcolpos); /* assume valid key */ validKey = TRUE; switch(key) { case 0x33:/* '0' = previous */ MessageToApp.uMID = MSGID_PREV_ENTRY; break; case 0x31:/* '1' = play/pause */ MessageToApp.uMID = MSGID_PLAYER_PLAY; break; case 0x32:/* '2' = stop */ MessageToApp.uMID = MSGID_PLAYER_STOP; break; case 0x37:/* '3' = next */ MessageToApp.uMID = MSGID_NEXT_ENTRY; break; case 0x44:/* 'D' = down */ MessageToApp.uMID = MSGID_VOLUME_DN; break; case 0x45:/* 'E' = up */ MessageToApp.uMID = MSGID_VOLUME_UP; break; case 0x42:/* 'B' = terminate */ MessageToApp.uMID = MSGID_TERMINATE_MPP; break; case 0x38:/* 'B' = connect */ MessageToApp.uMID = MSGID_TEST; break; default:/* any other key */ validKey = FALSE; break; }/* end of switch statement */ if (validKey) { err = OSQPost(mgr_application_Q, &MessageToApp); if(err && APP_TRACE_LEVEL) { APP_TRACE("KPAD OSQPost error%d\n",err); } } } }