diff options
Diffstat (limited to 'nuttx/arch/arm/src/lm3s/lm3s_irq.c')
-rw-r--r-- | nuttx/arch/arm/src/lm3s/lm3s_irq.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/lm3s/lm3s_irq.c b/nuttx/arch/arm/src/lm3s/lm3s_irq.c new file mode 100644 index 000000000..31da0754d --- /dev/null +++ b/nuttx/arch/arm/src/lm3s/lm3s_irq.c @@ -0,0 +1,235 @@ +/**************************************************************************** + * arch/arm/src/lm3s/lm3s_irq.c + * arch/arm/src/chip/lm3s_irq.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <nuttx/irq.h> + +#include "up_arch.h" +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +uint32 *current_regs; + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Funtions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_irqinitialize + ****************************************************************************/ + +void up_irqinitialize(void) +{ + /* Clear, disable and configure all interrupts. */ + +# warning "Missing logic" + + /* currents_regs is non-NULL only while processing an interrupt */ + + current_regs = NULL; + + /* Attach all processor exceptions (except reset and sys tick) */ + +#ifdef CONFIG_DEBUG + irq_attach(LMSB_IRQ_NMI, lm3s_nmi); + irq_attach(LMSB_IRQ_HARDFAULT, lm3s_hardfault); + irq_attach(LMSB_IRQ_MPU, lm3s_mpu); + irq_attach(LMSB_IRQ_BUSFAULT, lm3s_busfault); + irq_attach(LMSB_IRQ_USAGEFAULT, lm3s_usagefault); + irq_attach(LMSB_IRQ_SVCALL, lm3s_svcall); + irq_attach(LMSB_IRQ_DBGMONITOR, lm3s_dbgmonitor); + irq_attach(LMSB_IRQ_PENDSV, lm3s_pendsv); + irq_attach(LMSB_IRQ_RESERVED, lm3s_reserved); +#endif + +#ifndef CONFIG_SUPPRESS_INTERRUPTS + + /* Initialize FIQs */ + +#ifdef CONFIG_ARCH_FIQ + up_fiqinitialize(); +#endif + + /* And finally, enable interrupts */ + + irqrestore(0); +#endif +} + +/**************************************************************************** + * Name: up_disable_irq + * + * Description: + * Disable the IRQ specified by 'irq' + * + ****************************************************************************/ + +void up_disable_irq(int irq) +{ +# warning "Missing logic" +} + +/**************************************************************************** + * Name: up_enable_irq + * + * Description: + * Enable the IRQ specified by 'irq' + * + ****************************************************************************/ + +void up_enable_irq(int irq) +{ +# warning "Missing logic" +} + +/**************************************************************************** + * Name: up_maskack_irq + * + * Description: + * Mask the IRQ and acknowledge it + * + ****************************************************************************/ + +void up_maskack_irq(int irq) +{ +# warning "Missing logic" +} + + +/**************************************************************************** + * Name: lm3s_nmi, lm3s_hardfault, lm3s_mpu, lm3s_busfault, lm3s_usagefault, + * lm3s_svcall, lm3s_dbgmonitor, lm3s_pendsv, lm3s_reserved + * + * Description: + * Handlers for various execptions. None are handler and all are fatal + * error conditions. + * + ****************************************************************************/ + +#ifdef CONFIG_DEBUG +int lm3s_nmi(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! NMI received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_hardfault(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! Hard fault received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_mpu(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! MPU interrupt received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_busfault(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! Bus fault recived\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_usagefault(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! Usage fault received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_svcall(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! SVCALL received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_dbgmonitor(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! Debug Monitor receieved\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_pendsv(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! PendSV received\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} + +int lm3s_reserved(int irq, FAR void *context) +{ + (void)irqsave(); + dbg("PANIC!!! Reserved interrupt\n"); + PANIC(OSERR_UNEXPECTEDISR); + return 0; +} +#endif
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