FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/lcc/lcc_modulate.h @ 281:a75eefbf8be4
Phone boot with PWON: weed out short button presses
Every standard end user phone has a design provision, most naturally
implemented in firmware, whereby the PWON button effects a boot only
if it is held down long enough - short presses of this PWON button
are detected, assumed to be spurious and cause the fw to power back off
instead of proceeding with boot. The present change introduces this
standard function in FreeCalypso.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 24 Sep 2021 02:03:08 +0000 |
| parents | 4e78acac3d88 |
| children |
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/****************************************************************************** * Power Task (pwr) * Design and coding by Svend Kristian Lindholm, skl@ti.com * * PWR SW Modulation * * $Id: pwr_modulate.h 1.1 Wed, 20 Aug 2003 10:22:37 +0200 skl $ * ******************************************************************************/ #ifndef __LCC_MODULATE_H__ #define __LCC_MODULATE_H__ #include "lcc/lcc.h" #include "lcc/lcc_cfg.h" // SW modulation using the following addresses #if (USE_PWL_AS_MODULATOR == 1) // D-Sample - no modulation - just envelope function to simulate GPIO 6 #define PWL_LEVEL_REG (*(volatile unsigned char*) 0xFFFE8000) #define PWL_CTRL_REG (*(volatile unsigned char*) 0xFFFE8001) #define BUZZ_LIGHT_REG (*(volatile short*) 0xFFFE480E) // Enable buzzer (bit 0) and PWL (bit 1) #endif /****************************************************************************** * Function prototypes ******************************************************************************/ void pwr_modulate_init(void); void pwr_modulate_on(void); void pwr_modulate_off(void); #endif