diff options
Diffstat (limited to 'nuttx/arch/pjrc-8051/src/up_timerisr.c')
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_timerisr.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/nuttx/arch/pjrc-8051/src/up_timerisr.c b/nuttx/arch/pjrc-8051/src/up_timerisr.c new file mode 100644 index 000000000..a270da15c --- /dev/null +++ b/nuttx/arch/pjrc-8051/src/up_timerisr.c @@ -0,0 +1,91 @@ +/************************************************************ + * up_timerisr.c + * + * Copyright (C) 2007 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 Gregory Nutt 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 <debug.h> +#include <nuttx/arch.h> +#include "clock_internal.h" +#include "up_internal.h" + +/************************************************************ + * Definitions + ************************************************************/ + +/************************************************************ + * Private Types + ************************************************************/ + +/************************************************************ + * Private Function Prototypes + ************************************************************/ + +/************************************************************ + * Global Functions + ************************************************************/ + +/************************************************************ + * Function: timer_isr + * + * Description: + * The timer ISR will perform a variety of services for + * various portions of the systems. + * + ************************************************************/ + +int up_timerisr(int irq, FAR ubyte *frame) +{ + /* Process timer interrupt */ + + sched_process_timer(); + return 0; +} + +void up_timerinit(void) +{ + up_disable_irq(TIMER2_IRQ); + +#warning "Missing TIMER2 setup logic here" + + /* Attach and enable the timer interrupt */ + + irq_attach(TIMER2_IRQ, (xcpt_t)up_timerisr); + up_enable_irq(TIMER2_IRQ); +} + |