diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/csb337/clock/clock.c')
-rw-r--r-- | c/src/lib/libbsp/arm/csb337/clock/clock.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/c/src/lib/libbsp/arm/csb337/clock/clock.c b/c/src/lib/libbsp/arm/csb337/clock/clock.c deleted file mode 100644 index f231a04697..0000000000 --- a/c/src/lib/libbsp/arm/csb337/clock/clock.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * AT91RM9200 clock specific using the System Timer - */ - -/* - * Copyright (c) 2003 by Cogent Computer Systems - * Written by Mike Kelly <mike@cogcomp.com> - * and Jay Monkman <jtm@lopingdog.com> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <rtems.h> -#include <rtems/clockdrv.h> -#include <rtems/libio.h> - -#include <stdlib.h> -#include <bsp.h> -#include <bsp/irq.h> -#include <at91rm9200.h> -#include <at91rm9200_pmc.h> - -/** - * Enables clock interrupt. - * - * If the interrupt is always on, this can be a NOP. - */ -static void clock_isr_on(const rtems_irq_connect_data *unused) -{ - /* enable timer interrupt */ - ST_REG(ST_IER) = ST_SR_PITS; -} - -/** - * Disables clock interrupts - * - * If the interrupt is always on, this can be a NOP. - */ -static void clock_isr_off(const rtems_irq_connect_data *unused) -{ - /* disable timer interrupt */ - ST_REG(ST_IDR) = ST_SR_PITS; -} - -/** - * Tests to see if clock interrupt is enabled, and returns 1 if so. - * If interrupt is not enabled, returns 0. - * - * If the interrupt is always on, this always returns 1. - */ -static int clock_isr_is_on(const rtems_irq_connect_data *irq) -{ - /* check timer interrupt */ - return ST_REG(ST_IMR) & ST_SR_PITS; -} - -void Clock_isr(rtems_irq_hdl_param arg); - -/* Replace the first value with the clock's interrupt name. */ -rtems_irq_connect_data clock_isr_data = { - .name = AT91RM9200_INT_SYSIRQ, - .hdl = Clock_isr, - .handle = NULL, - .on = clock_isr_on, - .off = clock_isr_off, - .isOn = clock_isr_is_on, -}; - - -#define Clock_driver_support_install_isr( _new ) \ - BSP_install_rtems_irq_handler(&clock_isr_data) - -static void Clock_driver_support_initialize_hardware(void) -{ - uint32_t st_str; - int slck; - unsigned long value; - - /* the system timer is driven from SLCK */ - slck = at91rm9200_get_slck(); - value = (((rtems_configuration_get_microseconds_per_tick() * slck) + - (1000000/2))/ 1000000); - - /* read the status to clear the int */ - st_str = ST_REG(ST_SR); - (void) st_str; /* avoid set but not used warning */ \ - - /* set priority */ - AIC_SMR_REG(AIC_SMR_SYSIRQ) = AIC_SMR_PRIOR(0x7); - - /* set the timer value */ - ST_REG(ST_PIMR) = value; -} - -#define Clock_driver_support_at_tick() \ - do { \ - uint32_t st_str; \ - \ - /* read the status to clear the int */ \ - st_str = ST_REG(ST_SR); \ - (void) st_str; /* avoid set but not used warning */ \ - } while (0) - -#define Clock_driver_support_shutdown_hardware() \ - do { \ - BSP_remove_rtems_irq_handler(&clock_isr_data); \ - } while (0) - -#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER - -#include "../../../../libbsp/shared/clockdrv_shell.h" |