pi.h

#define BUS_PERIPHERAL_BASE 0x20000000
#define PERIPHERAL_RANGE     0x00300000

// Add this to a peripheral bus address to get the physical address
#define PERI_PHYS_OFFSET 0x5E000000
// Add this to a RAM address to get the L2 coherent physical address
#define RAM_PHYS_OFFSET  0x40000000

#ifndef PERIPHERAL_BASE
#define PERIPHERAL_BASE BUS_PERIPHERAL_BASE
#endif

#define ACCESS_PERI(offset) *((unsigned int volatile*)(PERIPHERAL_BASE + offset))

#define DMA0_CS         ACCESS_PERI(0x007000)
#define DMA0_CONBLK_AD  ACCESS_PERI(0x007004)

#define GPFSEL0     ACCESS_PERI(0x200000)
#define GPFSEL1     ACCESS_PERI(0x200004)
#define GPFSEL2     ACCESS_PERI(0x200008)
#define GPFSEL3     ACCESS_PERI(0x20000C)
#define GPFSEL4     ACCESS_PERI(0x200010)
#define GPSET0      ACCESS_PERI(0x20001C)
#define GPSET1      ACCESS_PERI(0x200020)
#define GPCLR0      ACCESS_PERI(0x200028)
#define GPCLR1      ACCESS_PERI(0x20002C)
#define GPLEV0      ACCESS_PERI(0x200034)
#define GPLEV1      ACCESS_PERI(0x200038)
#define GPEDS0      ACCESS_PERI(0x200040)
#define GPREN0      ACCESS_PERI(0x20004C)
#define GPFEN0      ACCESS_PERI(0x200058)
#define GPHEN0      ACCESS_PERI(0x200064)
#define GPLEN0      ACCESS_PERI(0x200070)
#define GPLEN1      ACCESS_PERI(0x200074)
#define GPAREN0     ACCESS_PERI(0x20007C)
#define GPAFEN0     ACCESS_PERI(0x200088)
#define GPPUD       ACCESS_PERI(0x200094)
#define GPPUDCLK0   ACCESS_PERI(0x200098)
#define GPPUDCLK1   ACCESS_PERI(0x20009C)

#define PWM_CONTROL ACCESS_PERI(0x20C000)
#define PWM_STATUS  ACCESS_PERI(0x20C004)
#define PWM_DMAC    ACCESS_PERI(0x20C008)
#define PWM0_RANGE  ACCESS_PERI(0x20C010)
#define PWM0_DATA   ACCESS_PERI(0x20C014)
#define PWM_FIFO    ACCESS_PERI(0x20C018)
#define PWM1_RANGE  ACCESS_PERI(0x20C020)
#define PWM1_DATA   ACCESS_PERI(0x20C024)

#define PWMCLK_CNTL ACCESS_PERI(0x1010A0)
#define PWMCLK_DIV  ACCESS_PERI(0x1010A4)

#define INTEN1      ACCESS_PERI(0x00B210)
// In the manual this register is called "interrupt enable register 2"
#define INTEN2      ACCESS_PERI(0x00B214)
#define INTEN_BASIC ACCESS_PERI(0x00B218)