forked from Imagelibrary/rtems
be96cb4345
Move _ISR_Handler() to a separate file since it is now only used if a handler is installed by _CPU_ISR_install_raw_handler(). Statically initialize the traps for external interrupts to use the new _SPARC_Interrupt_trap() which directly dispatches the interrupt handlers installed by rtems_interrupt_handler_install() via the BSP-provided _SPARC_Interrupt_dispatch(). Since the trap table is now fully statically initialized, there is no longer a dependency on the Cache Manager in the default configuration. Update #4458.
183 lines
4.4 KiB
C
183 lines
4.4 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsSPARCERC32
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*
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* @brief Global BSP definitions.
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*/
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/*
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* COPYRIGHT (c) 1989-2007.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*
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* Ported to ERC32 implementation of the SPARC by On-Line Applications
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* Research Corporation (OAR) under contract to the European Space
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* Agency (ESA).
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*
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* ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.
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* European Space Agency.
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*/
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#ifndef LIBBSP_SPARC_ERC32_BSP_H
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#define LIBBSP_SPARC_ERC32_BSP_H
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/**
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* @defgroup RTEMSBSPsSPARCERC32 ERC32
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*
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* @ingroup RTEMSBSPsSPARC
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*
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* @brief ERC32 Board Support Package.
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*
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* @{
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*/
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#include <bspopts.h>
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#include <bsp/default-initial-extension.h>
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#include <rtems.h>
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#include <erc32.h>
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#include <rtems/irq-extension.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BSP_FEATURE_IRQ_EXTENSION
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/*
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* BSP provides its own Idle thread body
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*/
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void *bsp_idle_thread( uintptr_t ignored );
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#define BSP_IDLE_TASK_BODY bsp_idle_thread
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/*
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* Network driver configuration
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*/
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struct rtems_bsdnet_ifconfig;
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extern int rtems_erc32_sonic_driver_attach(
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struct rtems_bsdnet_ifconfig *config
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);
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#define RTEMS_BSP_NETWORK_DRIVER_NAME "sonic1"
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#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_erc32_sonic_driver_attach
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/* Constants */
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/*
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* Information placed in the linkcmds file.
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*/
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extern int RAM_START;
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extern int RAM_END;
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extern int RAM_SIZE;
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extern int PROM_START;
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extern int PROM_END;
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extern int PROM_SIZE;
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extern int CLOCK_SPEED;
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extern int end; /* last address in the program */
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/* functions */
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rtems_isr_entry set_vector( /* returns old vector */
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rtems_isr_entry handler, /* isr routine */
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rtems_vector_number vector, /* vector number */
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int type /* RTEMS or RAW intr */
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);
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void BSP_fatal_exit(uint32_t error);
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/* Interrupt Service Routine (ISR) pointer */
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typedef void (*bsp_shared_isr)(void *arg);
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/* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple
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* interrupt handlers may use the same IRQ number, all ISRs will be called
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* when an interrupt on that line is fired.
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*
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* Arguments
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* irq System IRQ number
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* info Optional Name of IRQ source
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* isr Function pointer to the ISR
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* arg Second argument to function isr
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*/
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static __inline__ int BSP_shared_interrupt_register
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(
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int irq,
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const char *info,
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bsp_shared_isr isr,
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void *arg
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)
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{
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return rtems_interrupt_handler_install(irq, info,
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RTEMS_INTERRUPT_SHARED, isr, arg);
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}
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/* Unregister previously registered shared IRQ handler.
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*
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* Arguments
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* irq System IRQ number
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* isr Function pointer to the ISR
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* arg Second argument to function isr
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*/
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static __inline__ int BSP_shared_interrupt_unregister
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(
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int irq,
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bsp_shared_isr isr,
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void *arg
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)
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{
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return rtems_interrupt_handler_remove(irq, isr, arg);
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}
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/* Clear interrupt pending on IRQ controller, this is typically done on a
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* level triggered interrupt source such as PCI to avoid taking double IRQs.
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* In such a case the interrupt source must be cleared first on LEON, before
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* acknowledging the IRQ with this function.
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*
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* Arguments
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* irq System IRQ number
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*/
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extern void BSP_shared_interrupt_clear(int irq);
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/* Enable Interrupt. This function will unmask the IRQ at the interrupt
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* controller. This is normally done by _register(). Note that this will
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* affect all ISRs on this IRQ.
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*
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* Arguments
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* irq System IRQ number
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*/
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extern void BSP_shared_interrupt_unmask(int irq);
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/* Disable Interrupt. This function will mask one IRQ at the interrupt
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* controller. This is normally done by _unregister(). Note that this will
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* affect all ISRs on this IRQ.
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*
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* Arguments
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* irq System IRQ number
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*/
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extern void BSP_shared_interrupt_mask(int irq);
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/*
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* Delay for the specified number of microseconds.
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*/
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void rtems_bsp_delay(int usecs);
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/*
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* Prototypes for methods used across file boundaries
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*/
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void console_outbyte_polled(int port, unsigned char ch);
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int console_inbyte_nonblocking(int port);
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif
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