diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/smdk2410/clock/clockdrv.c')
-rw-r--r-- | c/src/lib/libbsp/arm/smdk2410/clock/clockdrv.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/c/src/lib/libbsp/arm/smdk2410/clock/clockdrv.c b/c/src/lib/libbsp/arm/smdk2410/clock/clockdrv.c deleted file mode 100644 index 41d61909cb..0000000000 --- a/c/src/lib/libbsp/arm/smdk2410/clock/clockdrv.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * S3C2400 clock specific using the System Timer - */ - -/* - * 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/irq.h> -#include <bsp.h> -#include <s3c24xx.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); - -rtems_irq_connect_data clock_isr_data = { - .name = BSP_INT_TIMER4, - .hdl = Clock_isr, - .handle = NULL, - .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 { \ - ClearPending(BIT_TIMER4); \ - } 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 { \ - uint32_t cr; \ - uint32_t freq; \ - /* 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) -{ -} - -/** - * 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; -} - -#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" |