diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2010-04-30 13:15:49 +0000 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2010-04-30 13:15:49 +0000 |
commit | f4dc319a8f92190c6efac916fb8b9b651d89df7c (patch) | |
tree | 13fc80d373ab83ea5a7111ae927bc8815e9f4fca /c/src/lib/libcpu/arm/lpc22xx/irq/irq.c | |
parent | 2010-04-30 Sebastian Huber <sebastian.huber@embedded-brains.de> (diff) | |
download | rtems-f4dc319a8f92190c6efac916fb8b9b651d89df7c.tar.bz2 |
2010-04-30 Sebastian Huber <sebastian.huber@embedded-brains.de>
* at91rm9200/irq/irq.c, at91rm9200/irq/irq.h, lpc22xx/irq/irq.c,
lpc22xx/irq/irq.h, mc9328mxl/irq/irq.c, mc9328mxl/irq/irq.h,
pxa255/irq/irq.c, pxa255/irq/irq.h, s3c24xx/irq/irq.c,
s3c24xx/irq/irq.h: The previous interrupt warning fix changed the
interrupt handler API. To fix this problem the generic interrupt
support framework will be used now. This eliminates a lot of copy and
paste code. The interrupt header file is now <bsp/irq.h>.
* at91rm9200/clock/clock.c, lpc22xx/clock/clockdrv.c,
mc9328mxl/clock/clockdrv.c, pxa255/clock/clock.c,
s3c24xx/clock/clockdrv.c: Include <bsp/irq.h> instead of <irq.h>.
* at91rm9200/irq/bsp_irq_asm.S, at91rm9200/irq/bsp_irq_init.c,
mc9328mxl/irq/bsp_irq_asm.S, mc9328mxl/irq/bsp_irq_init.c,
s3c24xx/irq/bsp_irq_asm.S, s3c24xx/irq/bsp_irq_init.c: Removed files.
* Makefile.am, preinstall.am: Reflect changes above.
Diffstat (limited to 'c/src/lib/libcpu/arm/lpc22xx/irq/irq.c')
-rw-r--r-- | c/src/lib/libcpu/arm/lpc22xx/irq/irq.c | 135 |
1 files changed, 44 insertions, 91 deletions
diff --git a/c/src/lib/libcpu/arm/lpc22xx/irq/irq.c b/c/src/lib/libcpu/arm/lpc22xx/irq/irq.c index dfc97f9135..2c5f392cb7 100644 --- a/c/src/lib/libcpu/arm/lpc22xx/irq/irq.c +++ b/c/src/lib/libcpu/arm/lpc22xx/irq/irq.c @@ -1,6 +1,8 @@ /* * Philps LPC22XX Interrupt handler * + * Copyright (c) 2010 embedded brains GmbH. + * * Copyright (c) 2006 by Ray<rayx.cn@gmail.com> to support LPC ARM * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at @@ -9,117 +11,68 @@ * * $Id$ */ + #include <bsp.h> -#include <irq.h> -#include <rtems/score/thread.h> -#include <rtems/score/apiext.h> +#include <bsp/irq.h> +#include <bsp/irq-generic.h> + #include <lpc22xx.h> -/* - * This function check that the value given for the irq line - * is valid. - */ -static int isValidInterrupt(int irq) +void bsp_interrupt_dispatch(void) { - if ( (irq < 0) || (irq >= BSP_MAX_INT)) - return 0; - return 1; + rtems_vector_number vector = 31 - __builtin_clz(VICIRQStatus); + + bsp_interrupt_handler_dispatch(vector); + + VICVectAddr = 0; } -/* - * Installs the interrupt handler. - * - * You should only have to add the code to unmask the interrupt. - * - */ -int BSP_install_rtems_irq_handler (const rtems_irq_connect_data* irq) +rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector) { - rtems_interrupt_level level; - rtems_irq_hdl *bsp_tbl; - int *vic_cntl; + VICIntEnable |= 1 << vector; - bsp_tbl = (rtems_irq_hdl *)VICVectAddrBase; + return RTEMS_SUCCESSFUL; +} - vic_cntl=(int *)VICVectCntlBase; +rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector) +{ + VICIntEnClr = 1 << vector; - if (!isValidInterrupt(irq->name)) { - return 0; - } + return RTEMS_SUCCESSFUL; +} - /* - * Check if default handler is actually connected. If not issue an error. - */ +rtems_status_code bsp_interrupt_facility_initialize(void) +{ + volatile uint32_t *ctrl = (volatile uint32_t *) VICVectCntlBase; + size_t i = 0; - if (bsp_tbl[irq->name] != default_int_handler) { - return 0; - } + /* Disable all interrupts */ + VICIntEnClr = 0xffffffff; - rtems_interrupt_disable(level); + /* Use IRQ category */ + VICIntSelect = 0; - /* - * store the new handler - */ - bsp_tbl[irq->name] = irq->hdl; - /* *(volatile unsigned long*)(VICVectAddr0+(irq->name * 4)&0x7c )= (uint32_t) irq->hdl;*/ - /* - * Enable interrupt on device - */ - vic_cntl[irq->name] = 0x20 | irq->name; + /* Enable access in USER mode */ + VICProtection = 0; - VICIntEnable |= 1 << irq->name; + for (i = 0; i < 16; ++i) { + /* Disable vector mode */ + ctrl [i] = 0; - if(irq->on) - { - irq->on(irq); - } + /* Acknowledge interrupts for all priorities */ + VICVectAddr = 0; + } + /* Acknowledge interrupts for all priorities */ + VICVectAddr = 0; - rtems_interrupt_enable(level); + /* Install the IRQ exception handler */ + _CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, arm_exc_interrupt, NULL); - return 1; + return RTEMS_SUCCESSFUL; } -/* - * Remove and interrupt handler - * - * You should only have to add the code to mask the interrupt. - * - */ -int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data* irq) +void bsp_interrupt_handler_default(rtems_vector_number vector) { - rtems_interrupt_level level; - rtems_irq_hdl *bsp_tbl; - - bsp_tbl = (rtems_irq_hdl *)&VICVectAddr0; - - if (!isValidInterrupt(irq->name)) { - return 0; - } - /* - * Check if the handler is actually connected. If not issue an error. - */ - if (bsp_tbl[irq->name] != irq->hdl) { - return 0; - } - - rtems_interrupt_disable(level); - - VICIntEnClr = 1 << irq->name; - - /* - * Disable interrupt on device - */ - if(irq->off) { - irq->off(irq); - } - /* - * restore the default irq value - */ - bsp_tbl[irq->name] = default_int_handler; - - rtems_interrupt_enable(level); - - return 1; + printk("spurious interrupt: %u\n", vector); } - - |