From 3c7ed6b8cd505f696c9c2b6d90723094f334b348 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 6 Jul 2005 18:46:04 +0000 Subject: 2005-07-06 Markku Puro * .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac, clock/clockdrv.c, console/conio.c, console/console.c, console/defaultfont.c, include/arm_mode_bits.h, include/asm_macros.h, include/bsp.h, include/bspopts.h.in, include/conio.h, include/gba.h, include/gba_registers.h, include/tm27.h, irq/bsp_irq_asm.S, irq/bsp_irq_init.c, irq/irq.c, irq/irq.h, irq/irq_asm.S, irq/irq_init.c, start/logo.S, start/start.S, startup/bspstart.c, startup/cpu.c, startup/cpu_asm.S, startup/exit.c, startup/linkcmds, timer/timer.c: New files. --- c/src/lib/libbsp/arm/gba/irq/irq_init.c | 71 +++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 c/src/lib/libbsp/arm/gba/irq/irq_init.c (limited to 'c/src/lib/libbsp/arm/gba/irq/irq_init.c') diff --git a/c/src/lib/libbsp/arm/gba/irq/irq_init.c b/c/src/lib/libbsp/arm/gba/irq/irq_init.c new file mode 100644 index 0000000000..c2b5c1da03 --- /dev/null +++ b/c/src/lib/libbsp/arm/gba/irq/irq_init.c @@ -0,0 +1,71 @@ +/** + * @file irq_init.c + * + * This file contains the implementation of rtems initialization + * related to interrupt handling. + */ +/* + * RTEMS GBA BSP + * + * CopyRight (C) 2000 Canon Research Centre France SA. + * Emmanuel Raguet, mailto:raguet@crf.canon.fr + * + * Copyright (c) 2004 Markku Puro + * + * The license and distribution terms for this file may be + * found in found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ +#include +#include +#include +#include + +/** default int vector */ +extern void _ISR_Handler(void); + +/** max number of vectors, defined in linkcmds */ +extern void _irq_max_vector; + +/** + * @brief default_int_handler BSP routine is default int_handler + * + * @param None + * @return None + */ +void default_int_handler(void) +{ + printk("raw_idt_notify has been called \n"); +} + +/** + * @brief rtems_irq_mngt_init BSP routine initialize rtems_irq_mngt + * + * @param None + * @return None + */ +void rtems_irq_mngt_init(void) +{ + int i; + uint32_t *vectorTable; + rtems_interrupt_level level; + + vectorTable = (uint32_t *)VECTOR_TABLE; + + _CPU_ISR_Disable(level); + + /* @todo Can't use exception vectors in GBA because they are already in GBA ROM BIOS */ + /* First, connect the ISR_Handler for IRQ and FIQ interrupts */ + /*_CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, _ISR_Handler, NULL);*/ + /*_CPU_ISR_install_vector(ARM_EXCEPTION_FIQ, _ISR_Handler, NULL);*/ + + /* Initialize the vector table contents with default handler */ + for (i=0 ; i < (uint32_t)&_irq_max_vector ; i++) { + *(vectorTable + i) = (uint32_t)(default_int_handler); + } + /* Initialize the INT at the BSP level */ + BSP_rtems_irq_mngt_init(); +} + -- cgit v1.2.3