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Nut/OS
4.10.3
API Reference
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Nut/OS
4.10.3
API Reference
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General AVR32 SPI bus controller routines. More...
#include <cfg/spi.h>#include <sys/timer.h>#include <sys/nutdebug.h>#include <stdlib.h>#include <memdebug.h>#include <dev/spibus_avr32.h>#include <avr32/io.h>
Go to the source code of this file.
Functions | |
| int | Avr32SpiSetup (NUTSPINODE *node) |
| Update SPI shadow registers. | |
| int | Avr32SpiBusNodeInit (NUTSPINODE *node) |
| Initialize an SPI bus node. | |
| int | Avr32SpiBusWait (NUTSPINODE *node, uint32_t tmo) |
| Wait until all SPI bus transfers are done. | |
General AVR32 SPI bus controller routines.
Copyright (C) 2001-2010 by egnite Software GmbH
All rights reserved.
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* $Id: spibus.c,v 1.3 2009/02/13 14:52:05 haraldkipp Exp $ *
Definition in file spibus.c.
| int Avr32SpiSetup | ( | NUTSPINODE * | node | ) |
Update SPI shadow registers.
| node | Specifies the SPI bus node. |
Definition at line 75 of file spibus.c.
References _NUTSPIBUS::bus_base, _AVR32SPIREG::csr, _AVR32SPIREG::mr, _NUTSPINODE::node_bits, _NUTSPINODE::node_bus, _NUTSPINODE::node_mode, _NUTSPINODE::node_rate, _NUTSPINODE::node_stat, NUT_HWCLK_PERIPHERAL_A, NUTASSERT, NutClockGet, SPI_MODE_CPHA, SPI_MODE_CPOL, SPI_MODE_CSKEEP, SPI_MODE_FAULT, SPI_MODE_LOOPBACK, and SPI_MODE_UPDATE.
Referenced by Avr32SpiBus0Select(), Avr32SpiBus1Select(), and Avr32SpiBusNodeInit().
| int Avr32SpiBusNodeInit | ( | NUTSPINODE * | node | ) |
Initialize an SPI bus node.
This routine is called for each SPI node, which is registered via NutRegisterSpiDevice().
| node | Specifies the SPI bus node. |
Definition at line 145 of file spibus.c.
References Avr32Spi0ChipSelect(), Avr32Spi1ChipSelect(), Avr32SpiBus0Interrupt(), Avr32SpiBus1Interrupt(), Avr32SpiSetup(), _NUTSPIBUS::bus_base, _NUTSPIBUS::bus_ready, _NUTSPIBUS::bus_sig, _AVR32SPIREG::csr, malloc(), _AVR32SPIREG::mr, _NUTSPINODE::node_bus, _NUTSPINODE::node_cs, _NUTSPINODE::node_mode, _NUTSPINODE::node_stat, NUTASSERT, NutIrqEnable(), NutRegisterIrqHandler(), outr, and SPI_MODE_CSHIGH.
| int Avr32SpiBusWait | ( | NUTSPINODE * | node, |
| uint32_t | tmo | ||
| ) |
Wait until all SPI bus transfers are done.
| node | Specifies the SPI bus node. |
| tmo | Timeout in milliseconds. To disable timeout, set this parameter to NUT_WAIT_INFINITE. |
Definition at line 294 of file spibus.c.
References _NUTSPIBUS::bus_base, _NUTSPIBUS::bus_ready, inr, _NUTSPINODE::node_bus, and NutEventWait().
Referenced by Avr32SpiBus0Deselect(), and Avr32SpiBus1Deselect().
