rpi4-osdev/part14-spi-ethernet/kernel/kernel.h
Adam Greenwood-Byrne 59b7cc11f0 Updated docs
2021-11-07 20:22:17 +00:00

49 lines
1.2 KiB
C

#define PERIPHERAL_BASE 0xFE000000
#define CLOCKHZ 1000000
struct timer_regs {
volatile unsigned int control_status;
volatile unsigned int counter_lo;
volatile unsigned int counter_hi;
volatile unsigned int compare[4];
};
#define REGS_TIMER ((struct timer_regs *)(PERIPHERAL_BASE + 0x00003000))
struct arm_irq_regs_2711 {
volatile unsigned int irq0_pending_0;
volatile unsigned int irq0_pending_1;
volatile unsigned int irq0_pending_2;
volatile unsigned int res0;
volatile unsigned int irq0_enable_0;
volatile unsigned int irq0_enable_1;
volatile unsigned int irq0_enable_2;
volatile unsigned int res1;
volatile unsigned int irq0_disable_0;
volatile unsigned int irq0_disable_1;
volatile unsigned int irq0_disable_2;
};
typedef struct arm_irq_regs_2711 arm_irq_regs;
#define REGS_IRQ ((arm_irq_regs *)(PERIPHERAL_BASE + 0x0000B200))
enum vc_irqs {
SYS_TIMER_IRQ_0 = 1,
SYS_TIMER_IRQ_1 = 2,
SYS_TIMER_IRQ_2 = 4,
SYS_TIMER_IRQ_3 = 8,
AUX_IRQ = (1 << 29)
};
void irq_init_vectors();
void irq_enable();
void irq_disable();
void enable_interrupt_controller();
void disable_interrupt_controller();
void handle_timer_1();
void handle_timer_3();
void init_network(void);
void arp_test(void);