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Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libcpu/arm/s3c2400/clock/clockdrv.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/c/src/lib/libcpu/arm/s3c2400/clock/clockdrv.c b/c/src/lib/libcpu/arm/s3c2400/clock/clockdrv.c deleted file mode 100644 index 8de0864d73..0000000000 --- a/c/src/lib/libcpu/arm/s3c2400/clock/clockdrv.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * S3C2400 clock specific using the System Timer - * - * This is hardware specific part of the clock driver. At the end of this - * file, the generic part of the driver is #included. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * - * http://www.rtems.com/license/LICENSE. - * - * - * $Id$ -*/ -#include <rtems.h> -#include <irq.h> -#include <bsp.h> -#include <s3c2400.h> - -/* this is defined in ../../../shared/clockdrv_shell.h */ -rtems_isr Clock_isr(rtems_vector_number vector); -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 = {BSP_INT_TIMER4, - (rtems_irq_hdl)Clock_isr, - clock_isr_on, - clock_isr_off, - clock_isr_is_on, - 3, /* unused for ARM cpus */ - 0 }; /* unused for ARM cpus */ - -/* If you follow the code, this is never used, so any value - * should work - */ -#define CLOCK_VECTOR 0 - -/** - * Return the nanoseconds since last tick - */ -uint32_t clock_driver_get_nanoseconds_since_last_tick(void) -{ - return 0; -} - -#define Clock_driver_nanoseconds_since_last_tick \ - clock_driver_get_nanoseconds_since_last_tick - -/** - * When we get the clock interrupt - * - clear the interrupt bit? - * - restart the timer? - */ -#define Clock_driver_support_at_tick() \ - do { \ - ClearPending(BIT_TIMER4); \ - } while(0) - - -/** - * Installs the clock ISR. You shouldn't need to change this. - */ -#define Clock_driver_support_install_isr( _new, _old ) \ - do { \ - _old = NULL; \ - BSP_install_rtems_irq_handler(&clock_isr_data); \ - } while(0) - - -/** - * 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 { \ - uint32_t cr; \ - uint32_t freq,m,p,s; \ - /* set MUX for Timer4 to 1/16 */ \ - cr=rTCFG1 & 0xFFF0FFFF; \ - rTCFG1=(cr | (3<<16)); \ - freq = get_PCLK(); \ - /* set TIMER4 counter, input freq=PLCK/16/16Mhz*/ \ - freq = (freq /16)/16; \ - rTCNTB4 = ((freq / 1000) * rtems_configuration_get_microseconds_per_tick()) / 1000; \ - /*unmask TIMER4 irq*/ \ - rINTMSK&=~BIT_TIMER4; \ - /* start TIMER4 with autoreload */ \ - cr=rTCON & 0xFF8FFFFF; \ - rTCON=(cr|(0x6<<20)); \ - rTCON=(cr|(0x5<<20)); \ - } 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 */ \ - 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) -{ - return; -} - -/** - * 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) -{ - return; -} - -/** - * 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 1; -} - - -/* Make sure to include this, and only at the end of the file */ -#include "../../../../libbsp/shared/clockdrv_shell.h" |