FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/spi/spi_process.h @ 261:841a848ba762
SPI SWE: clear any pending boot-time interrupts in spi_init()
Charger plug/unplug hw logic in the Iota ABB has no built-in debouncing,
thus electrical contact bounce on the charging power connection interface
produces a lot of charger plug/unplug interrupts. When we boot in
charging mode (charging power present at boot time and is presumably
the cause of Switch-ON), some bounce may occur between the initial
Iota Switch-ON action and Calypso firmware booting. By clearing any
accumulated ITSTATREG interrupts on boot, we prevent these pre-boot
interrupts from generating charger plug/unplug events to FCHG, which
would upset smooth from-boot charging.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 14 May 2021 02:49:05 +0000 |
parents | 34b7059b9337 |
children |
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/*****************************************************************************/ /* */ /* Name spi_process.h */ /* */ /* Function this file contains the spi_process function prototype, */ /* used to handle messages received in the SPI task mailbox. */ /* */ /* Version 0.1 */ /* */ /* Date Modification */ /* ------------------------------------ */ /* */ /* Author Candice Bazanegue */ /* */ /* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved */ /*****************************************************************************/ #ifndef __SPI_PROCESS_H__ #define __SPI_PROCESS_H__ #define SPI_ABB_READ_EVT 1 #define SPI_ABB_WRITE_EVT 2 #define SPI_ABB_CONF_ADC_EVT 3 #define SPI_ABB_READ_ADC_EVT 4 #define ABB_EXT_IRQ_EVT 5 /* Prototypes */ /******************************************************************************* ** Function spi_process ** ** Description It is called by the spi task core to handle the access to ** the ABB through the SPI in a non-preemptive way. ** *******************************************************************************/ UINT8 spi_process(T_RV_HDR * msg_ptr); #endif /* __SPI_PROCESS_H__ */