diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/csb336/clock/clockdrv.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/csb336/clock/clockdrv.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/c/src/lib/libbsp/arm/csb336/clock/clockdrv.c b/c/src/lib/libbsp/arm/csb336/clock/clockdrv.c deleted file mode 100644 index 576a8278d5..0000000000 --- a/c/src/lib/libbsp/arm/csb336/clock/clockdrv.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * MC9328MXL clock specific using the System Timer - */ - -/* - * Copyright (c) 2004 by Cogent Computer Systems - * Written by 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 <bsp.h> -#include <bsp/irq.h> -#include <mc9328mxl.h> -#include <rtems/bspIo.h> /* for printk */ - -/* this is defined in ../../../shared/clockdrv_shell.h */ -void Clock_isr(rtems_irq_hdl_param arg); -static void clock_isr_on(const rtems_irq_connect_data *unused); -static void clock_isr_off(const rtems_irq_connect_data *unused); -static int clock_isr_is_on(const rtems_irq_connect_data *irq); - -/* Replace the first value with the clock's interrupt name. */ -rtems_irq_connect_data clock_isr_data = { - .name = BSP_INT_TIMER1, - .hdl = Clock_isr, - .handle = (void *)BSP_INT_TIMER1, - .on = clock_isr_on, - .off = clock_isr_off, - .isOn = clock_isr_is_on, -}; - -/** - * When we get the clock interrupt - * - clear the interrupt bit? - * - restart the timer? - */ -#define Clock_driver_support_at_tick() \ - do { \ - uint32_t reg; \ - \ - reg = MC9328MXL_TMR1_TSTAT; \ - (void) reg; /* avoid set but not used warning */ \ - MC9328MXL_TMR1_TSTAT = 0; \ - } while(0) - -/** - * Installs the clock ISR. You shouldn't need to change this. - */ -#define Clock_driver_support_install_isr( _new ) \ - BSP_install_rtems_irq_handler(&clock_isr_data) - -/** - * Initialize the hardware for the clock - * - Set the frequency - * - enable it - * - clear any pending interrupts - * - * Since you may want the clock always running, you can - * enable interrupts here. If you do so, the clock_isr_on(), - * clock_isr_off(), and clock_isr_is_on() functions can be - * NOPs. - */ -#define Clock_driver_support_initialize_hardware() \ - do { \ - int freq; \ - int cnt; \ - freq = get_perclk1_freq(); \ - printk("perclk1 freq is %d\n", freq); \ - cnt = ((long long)freq * rtems_configuration_get_microseconds_per_tick() + 500000) / 1000000;\ - printk("cnt freq is %d\n", cnt); \ - MC9328MXL_TMR1_TCMP = cnt; \ - /* use PERCLK1 as input, enable timer */ \ - MC9328MXL_TMR1_TCTL = (MC9328MXL_TMR_TCTL_CLKSRC_PCLK1 | \ - MC9328MXL_TMR_TCTL_TEN | \ - MC9328MXL_TMR_TCTL_IRQEN); \ - /* set prescaler to 1 (register value + 1) */ \ - MC9328MXL_TMR1_TPRER = 0; \ - } while (0) - -/** - * Do whatever you need to shut the clock down and remove the - * interrupt handler. Since this normally only gets called on - * RTEMS shutdown, you may not need to do anything other than - * remove the ISR. - */ -#define Clock_driver_support_shutdown_hardware() \ - do { \ - /* Disable timer */ \ - MC9328MXL_TMR1_TCTL = 0; \ - BSP_remove_rtems_irq_handler(&clock_isr_data); \ - } while (0) - -/** - * 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) -{ - MC9328MXL_TMR1_TCTL |= MC9328MXL_TMR_TCTL_IRQEN; - MC9328MXL_AITC_INTENNUM = MC9328MXL_INT_TIMER1; -} - -/** - * 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) -{ - MC9328MXL_TMR1_TCTL &= ~MC9328MXL_TMR_TCTL_IRQEN; - MC9328MXL_AITC_INTDISNUM = MC9328MXL_INT_TIMER1; -} - -/** - * 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) -{ - return MC9328MXL_TMR1_TCTL & MC9328MXL_TMR_TCTL_IRQEN; -} - -#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER - -/* Make sure to include this, and only at the end of the file */ - -#include "../../../../libbsp/shared/clockdrv_shell.h" |