FreeCalypso > hg > fc-tourmaline
view src/condat/com/src/driver/light.c @ 72:7bf39f5e834d
backlight control on Luna: switch PWL instead of LEDB
This change is preliminary toward upcoming rework of backlight control
logic in our UI firmware. LEDB does not exist on Tango-based platforms
(it is not brought out on Tango modules), thus turning it on and off
produces absolutely no effect beyond making L1 disable deep sleep
when LEDB is turned on. However, both iWOW DSK and our upcoming
FC Caramel2 boards have a PWL LED, so let's switch that LED on and off
to indicate the state of the UI firmware's backlight control.
Note that we are NOT switching the actual Luna LCD backlight here,
even though it is trivially controlled with a GPIO. The reason for
this seemingly strange choice is that we don't want to turn this
development board LCD backlight off until we bring the higher-level
backlight control logic up to par, including new logic to "swallow"
the first keypress that turns on the darkened LCD.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 24 Oct 2020 07:39:54 +0000 |
parents | 4e78acac3d88 |
children | 8697f358f505 |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS | Modul : DRV_LT +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This Module defines the G23 light emitting driver. +----------------------------------------------------------------------------- Apr 26, 2005 REF : CRR 30627 xpradipg Bug : Replace the ABB APIs with Audio Service APIs Fix : Remove the LT_ function calls *******************************************************************************/ /* June 03, 2005 REF: GSM-ENH-31636 xpradipg Description: Change the board ID for Isample to 71 and add new defination for the CALLISTO with baord ID 70 Solution: Add the definition of ALLISTO with board ID 70 and change the board Id to 71 for Isample CRR 28825: xpradipg - 11 Feb 2005 Description:Extension of GDI-for display of ISample and code cleanup Solution: The code replication for D_Sample and E_sample are removed and a new flag is added for the ISample currently the BOARD ID is set to 60 for ISample. */ #ifndef DRV_LT_C #define DRV_LT_C #endif /*==== INCLUDES ===================================================*/ #if defined (NEW_FRAME) #include <string.h> #include "typedefs.h" #include "gdi.h" #include "light.h" #else #include <string.h> #include "stddefs.h" #include "gdi.h" #include "light.h" #endif #include "main/sys_types.h" #include "fc-target.h" #include "armio.h" /*==== EXPORT =====================================================*/ /*==== VARIABLES ==================================================*/ UBYTE backlight_status = LIGHT_STATUS_OFF; /*==== FUNCTIONS ==================================================*/ #if defined (_TMS470) #ifndef FF_MMI_SERVICES_MIGRATION EXTERN void LT_Disable (void); EXTERN void LT_Enable (void); EXTERN void LT_Level (UBYTE level); #endif #else LOCAL void LT_Disable (void); LOCAL void LT_Enable (void); LOCAL void LT_Level (UBYTE level); #endif /*==== CONSTANTS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6103) MODULE : DRV_LT | | STATE : code ROUTINE : light_Init | +--------------------------------------------------------------------+ PURPOSE : The function initializes the internal data of the driver. The function returns DRV_INITIALIZED if the driver has already been initialized and is ready to be used or is already in use. In case of an initialization failure, i.e. the driver cannot be used, the function returns DRV_INITFAILURE. */ GLOBAL UBYTE light_Init (void) { backlight_status = LIGHT_STATUS_OFF; #ifdef CONFIG_TARGET_LUNA /* PWL module clock enable */ *(volatile SYS_UWORD8 *)0xFFFE8001 = 0x01; #endif return DRV_OK; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6103) MODULE : DRV_LT | | STATE : code ROUTINE : light_Exit | +--------------------------------------------------------------------+ PURPOSE : The function is called when the driver functionality is not longer needed. The function de-allocates the resources. */ GLOBAL void light_Exit (void) { backlight_status = LIGHT_STATUS_OFF; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6103) MODULE : DRV_LT | | STATE : code ROUTINE : light_SetStatus | +--------------------------------------------------------------------+ PURPOSE : This function is used to change the status of a specific light emitting device supported by this driver. The device is identified by the parameter in_DeviceID. Depending on the capabilities of the device, the parameter in_NewStatus has different meanings. */ GLOBAL UBYTE light_SetStatus (UBYTE in_DeviceID, UBYTE in_NewStatus) { if (in_DeviceID EQ LIGHT_DEVICE_BACKLIGHT) { backlight_status = in_NewStatus; switch (in_NewStatus) { case LIGHT_STATUS_OFF: light_setBacklightOff(); /* ancient code for C-Sample and earlier removed in FreeCalypso */ #if 0 LT_Disable (); #endif break; default: light_setBacklightOn(); #if 0 LT_Enable (); LT_Level (255); #endif break; } return DRV_OK; } else return DRV_INVALID_PARAMS; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6103) MODULE : DRV_LT | | STATE : code ROUTINE : light_GetStatus | +--------------------------------------------------------------------+ PURPOSE : This function retrieves the status of a specific light emitting device supported by the driver. If the status of a specified device could be retrieved, the function returns DRV_OK. If the specified device is unknown, the function returns DRV_INVALID_PARAMS. */ GLOBAL UBYTE light_GetStatus (UBYTE in_DeviceID, UBYTE * in_StatusPtr) { if (in_DeviceID EQ LIGHT_DEVICE_BACKLIGHT) { *in_StatusPtr = backlight_status; return DRV_OK; } else return DRV_INVALID_PARAMS; } #if defined (WIN32) LOCAL void LT_Disable (void) { } LOCAL void LT_Enable (void) { } LOCAL void LT_Level (UBYTE level) { } #endif /******************************************************************************* Code below added for D-sample backlight *******************************************************************************/ //June 03, 2005 REF: GSM-ENH-31636 xpradipg //CRR 28825: xpradipg - 11 Feb 2005 #if ((BOARD == 40) || (BOARD == 41) || (BOARD == 43) || (BOARD == 70) || (BOARD == 71)) #define DSAMPLE_COLOUR #include "lls/lls_api.h" #else /* Procedure stiubs added instead of disabling calls to the procedures. */ /* So we will get duplicate procedures if the actual LLS procedures are present */ #define LLS_BACKLIGHT 0x02 int lls_switch_off(unsigned char equipment) { } int lls_switch_on(unsigned char equipment) { } #endif enum { BACKLIGHT_OFF, BACKLIGHT_ON, BACKLIGHT_IDLE1 }; UBYTE backLightState= BACKLIGHT_OFF; /******************************************************************************* $Function: setBacklightOn $Description: switches backlight on. Called on powerup or on a key press. Should also be called on incoming call, SMS etc ? $Returns: none. $Arguments: none. *******************************************************************************/ void light_setBacklightOn( void ) { if (backLightState == BACKLIGHT_OFF) { #ifdef CONFIG_TARGET_LUNA /* turn on PWL */ *(volatile SYS_UWORD8 *)0xFFFE8000 = 255; #else #ifdef CONFIG_TARGET_C139 AI_SetBit(1); #endif lls_switch_on(LLS_BACKLIGHT); //Switch backlight on #endif } backLightState = BACKLIGHT_ON; } /******************************************************************************* $Function: setBacklightOff $Description: switches backlight off. $Returns: none. $Arguments: none. *******************************************************************************/ void light_setBacklightOff( void ) { if ((backLightState == BACKLIGHT_ON) || (backLightState == BACKLIGHT_IDLE1)) { backLightState = BACKLIGHT_OFF; #ifdef CONFIG_TARGET_LUNA /* turn off PWL */ *(volatile SYS_UWORD8 *)0xFFFE8000 = 0; #else #ifdef CONFIG_TARGET_C139 AI_ResetBit(1); #endif lls_switch_off(LLS_BACKLIGHT); //Switch backlight off #endif } } /******************************************************************************* $Function: setBacklightIdle $Description: switches backlight off (on second call). Called when the 1 minute timer expires. If no key press since the last call, the backlight is switched off. $Returns: none. $Arguments: none. *******************************************************************************/ void light_setBacklightIdle( void ) { if (backLightState == BACKLIGHT_ON) { backLightState = BACKLIGHT_IDLE1; } else { light_setBacklightOff(); } }