FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_core/timer/timer.h @ 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 |
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/******************************************************************************* TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION Property of Texas Instruments -- For Unrestricted Internal Use Only Unauthorized reproduction and/or distribution is strictly prohibited. This product is protected under copyright law and trade secret law as an unpublished work. Created 1987, (C) Copyright 1997 Texas Instruments. All rights reserved. Filename : timer.h Description : timer.c header Project : drivers Author : pmonteil@tif.ti.com Patrice Monteil. Version number : 1.3 Date and time : 07/23/98 16:25:53 Previous delta : 07/23/98 16:25:52 SCCS file : /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release1.5/mod/emu/EMU_MCMP/eva3_drivers/source/SCCS/s.timer.h Sccs Id (SID) : '@(#) timer.h 1.3 07/23/98 16:25:53 ' *****************************************************************************/ #include "l1sw.cfg" #if (OP_L1_STANDALONE == 0) #include "main/sys_types.h" #else #include "sys_types.h" #endif #define TIMER_CNTL_REG MEM_TIMER_ADDR /* watchdog Control Timer register */ #define TIMER_ST 0x0080 #define TIMER_AR 0x0100 #define TIMER_PTV 0x0e00 #define TIMER_CNTL_MASK 0x0f80 #define TIMER_MODE_MASK 0x80ff #define TIMER_LOAD_REG (MEM_TIMER_ADDR + 0x02) /* Timer load register */ #define TIMER_READ_REG (MEM_TIMER_ADDR + 0x02) /* Timer read register */ #define TIMER_MODE_REG (MEM_TIMER_ADDR + 0x04) /* Timer mode register */ #define TIMER_WDOG 0x8000 /* watch dog */ #define START_STOP 1 /*to start or stop a timer */ #define AR 0x0002 #define PTV 0x001c #define TIMER_CLK_EN 0x0020 #define TIMER1_CNTL (MEM_TIMER1 + 0x00) #define TIMER1_LOAD_TIM (MEM_TIMER1 + 0x02) #define TIMER1_READ_TIM (MEM_TIMER1 + 0x04) #define TIMER2_CNTL (MEM_TIMER2 + 0x00) #define TIMER2_LOAD_TIM (MEM_TIMER2 + 0x02) #define TIMER2_READ_TIM (MEM_TIMER2 + 0x04) /*-------------------------------------------------------------- * TIMER_START_STOP () *-------------------------------------------------------------- * Parameters : start or stop command * Return : none * Functionality : Start or Stop the timer *--------------------------------------------------------------*/ #define TIMER_START_STOP(startStop) ((startStop) ? ((* (volatile SYS_UWORD16 *) TIMER_CNTL_REG) |= TIMER_ST) : \ ((* (volatile SYS_UWORD16 *) TIMER_CNTL_REG) &= ~TIMER_ST)) /* Prototype of the functions */ void TM_ResetTimer (SYS_UWORD16 timerNum, SYS_UWORD16 countValue, SYS_UWORD16 autoReload, SYS_UWORD16 clockScale); void TM_StopTimer (int timerNum); void TM_StartTimer (int timerNum); SYS_UWORD16 TM_ReadTimer (int timerNum); void TM_DisableWatchdog(void); void TM_EnableWatchdog(void); void TM_ResetWatchdog(SYS_UWORD16 cnt); void TM_EnableTimer (int timerNum); void TM_DisableTimer (int timerNum); SYS_UWORD16 TIMER_Read (unsigned short); void TIMER_WriteValue (SYS_UWORD16); unsigned short TIMER_ReadValue (void);