ref: 909323e92a4e694bff5908e500d8655ac1bbd932
dir: /sys/src/9/bcm/io.h/
enum { IRQtimer0 = 0, IRQtimer1 = 1, IRQtimer2 = 2, IRQtimer3 = 3, IRQclock = IRQtimer3, IRQusb = 9, IRQdma0 = 16, #define IRQDMA(chan) (IRQdma0+(chan)) IRQaux = 29, IRQi2c = 53, IRQspi = 54, IRQsdhost = 56, IRQuart = 57, IRQmmc = 62, IRQbasic = 64, IRQtimerArm = IRQbasic + 0, IRQlocal = 96, IRQcntps = IRQlocal + 0, IRQcntpns = IRQlocal + 1, IRQmbox0 = IRQlocal + 4, IRQmbox1 = IRQlocal + 5, IRQmbox2 = IRQlocal + 6, IRQmbox3 = IRQlocal + 7, IRQlocaltmr = IRQlocal + 11, IRQfiq = IRQusb, /* only one source can be FIQ */ DmaD2M = 0, /* device to memory */ DmaM2D = 1, /* memory to device */ DmaM2M = 2, /* memory to memory */ DmaChanEmmc = 4, /* can only use 2-5, maybe 0 */ DmaChanSdhost = 5, DmaChanSpiTx= 2, DmaChanSpiRx= 0, DmaDevSpiTx = 6, DmaDevSpiRx = 7, DmaDevEmmc = 11, DmaDevSdhost = 13, PowerSd = 0, PowerUart0, PowerUart1, PowerUsb, PowerI2c0, PowerI2c1, PowerI2c2, PowerSpi, PowerCcp2tx, ClkEmmc = 1, ClkUart, ClkArm, ClkCore, ClkV3d, ClkH264, ClkIsp, ClkSdram, ClkPixel, ClkPwm, /* bcm2711 */ ClkEmmc2 = 12, }; #define BUSUNKNOWN (-1)