Unit BCM2837

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See: BCM2835-ARM-Peripherals.pdf

`BCM2837_VCBUS_0_ALIAS = $00000000;`	0 Alias - L1 and L2 cached
`BCM2837_VCBUS_4_ALIAS = $40000000;`	4 Alias - L2 cache coherent (non allocating)
`BCM2837_VCBUS_8_ALIAS = $80000000;`	8 Alias - L2 cached (only)
`BCM2837_VCBUS_C_ALIAS = $C0000000;`	C Alias - Direct uncached (Suitable for RPi 2/3 Model A/B/A+/B+)

BCM2837 peripherals BCM2837_PERIPHERALS_*

See: BCM2835-ARM-Peripherals.pdf

`BCM2837_PERIPHERALS_BASE = $3F000000;`	Mapped to VC address 7E000000
`BCM2837_PERIPHERALS_SIZE = SIZE_16M;`

BCM2837 interrupt controller 0 BCM2837_IC0_REGS_*

`BCM2837_IC0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $2000;`

BCM2837 system timer BCM2837_SYSTEM_TIMER_*

See Section 12

`BCM2837_SYSTEM_TIMER_REGS_BASE = BCM2837_PERIPHERALS_BASE + $3000;`

BCM2837 message based parallel host interface BCM2837_MPHI_REGS_*

`BCM2837_MPHI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $6000;`

BCM2837 DMA controller BCM2837_DMA*

Channels 0 to 14 (See Section 4)

`BCM2837_DMA0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7000;`
`BCM2837_DMA1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7100;`
`BCM2837_DMA2_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7200;`
`BCM2837_DMA3_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7300;`
`BCM2837_DMA4_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7400;`
`BCM2837_DMA5_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7500;`
`BCM2837_DMA6_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7600;`
`BCM2837_DMA7_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7700;`
`BCM2837_DMA8_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7800;`
`BCM2837_DMA9_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7900;`
`BCM2837_DMA10_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7A00;`
`BCM2837_DMA11_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7B00;`
`BCM2837_DMA12_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7C00;`
`BCM2837_DMA13_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7D00;`
`BCM2837_DMA14_REGS_BASE = BCM2837_PERIPHERALS_BASE + $7E00;`

`BCM2837_DMA_INT_STATUS_BASE = BCM2837_PERIPHERALS_BASE + $7FE0;`
`BCM2837_DMA_ENABLE_BASE = BCM2837_PERIPHERALS_BASE + $7FF0;`

BCM2837 ARM interrupt controller BCM2837_INTERRUPT_*

See Section 7

`BCM2837_INTERRUPT_REGS_BASE = BCM2837_PERIPHERALS_BASE + $B200;`	Note: Broadcom states 0xB000 but the offsets begin at 0x200 so 0xB200 will be correct

BCM2837 ARM timer BCM2837_TIMER_*

See Section 14

`BCM2837_TIMER_REGS_BASE = BCM2837_PERIPHERALS_BASE + $B400;`	Note: Broadcom states 0xB000 but the offsets begin at 0x400 so 0xB400 will be correct

BCM2837 ARM doorbell BCM2837_DOORBELL_*

`BCM2837_DOORBELL_REGS_BASE = BCM2837_PERIPHERALS_BASE + $B840;`

BCM2837 ARM mailbox 0 BCM2837_MAILBOX0_*

`BCM2837_MAILBOX0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $B880;`

BCM2837 ARM mailbox 1 BCM2837_MAILBOX1_*

`BCM2837_MAILBOX1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $B8A0;`

BCM2837 power management, reset controller and watchdog BCM2837_PM_*

`BCM2837_PM_REGS_BASE = BCM2837_PERIPHERALS_BASE + $100000;`

BCM2837 clock management BCM2837_CM_*

`BCM2837_CM_REGS_BASE = BCM2837_PERIPHERALS_BASE + $101000;`

BCM2837 PCM clock BCM2837_PCM_CLOCK_*

`BCM2837_PCM_CLOCK_BASE = BCM2837_PERIPHERALS_BASE + $101098;`

BCM2837 random number generator BCM2837_RNG_*

`BCM2837_RNG_REGS_BASE = BCM2837_PERIPHERALS_BASE + $104000;`

BCM2837 GPIO BCM2837_GPIO_*

See Section 6

`BCM2837_GPIO_REGS_BASE = BCM2837_PERIPHERALS_BASE + $200000;`

BCM2837 UART0 (PL011) BCM2837_PL011_*

See Section 13

`BCM2837_PL011_REGS_BASE = BCM2837_PERIPHERALS_BASE + $201000;`

BCM2837 MMCI0 BCM2837_MMCI0_*

`BCM2837_MMCI0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $202000;`
`BCM2837_SDHOST_REGS_BASE = BCM2837_MMCI0_REGS_BASE;`

BCM2837 PCM/I2S audio BCM2837_PCM_*

See Section 8

`BCM2837_PCM_REGS_BASE = BCM2837_PERIPHERALS_BASE + $203000;`

BCM2837 SPI0 BCM2837_SPI0_*

See Section 10

`BCM2837_SPI0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $204000;`

BCM2837 BSC0 (I2C) BCM2837_BSC0_*

See Section 3

`BCM2837_BSC0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $205000;`

BCM2837 pixel valve 0 BCM2837_PIXELVALVE0_*

`BCM2837_PIXELVALVE0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $206000;`

BCM2837 pixel valve 1 BCM2837_PIXELVALVE1_*

`BCM2837_PIXELVALVE1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $207000;`

BCM2837 DPI (Display Parallel Interface) BCM2837_DPI_*

`BCM2837_DPI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $208000;`

BCM2837 DSI0 (Display Serial Interface) BCM2837_DSI0_*

`BCM2837_DSI0_REGS_BASE = BCM2837_PERIPHERALS_BASE + $209000;`

BCM2837 PWM BCM2837_PWM_*

See Section 9

`BCM2837_PWM_REGS_BASE = BCM2837_PERIPHERALS_BASE + $20C000;`

BCM2837 I2C/SPI slave BCM2837_I2CSPI_*

See Section 11

`BCM2837_I2CSPI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $214000;`

BCM2837 AUX BCM2837_AUX_*

See Section 2

`BCM2837_AUX_REGS_BASE = BCM2837_PERIPHERALS_BASE + $215000;`

BCM2837 UART1 BCM2837_UART1_*

`BCM2837_UART1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $215040;`

BCM2837 SPI1 BCM2837_SPI1_*

`BCM2837_SPI1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $215080;`

BCM2837 SPI2 BCM2837_SPI2_*

`BCM2837_SPI2_REGS_BASE = BCM2837_PERIPHERALS_BASE + $2150C0;`

BCM2837 SD host controller BCM2837_SDHCI_*

See Section 5

`BCM2837_SDHCI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $300000;`

BCM2837 HVS BCM2837_HVS_*

`BCM2837_HVS_REGS_BASE = BCM2837_PERIPHERALS_BASE + $400000;`

BCM2837 SMI BCM2837_SMI_*

`BCM2837_SMI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $600000;`

BCM2837 DSI1 (Display Serial Interface) BCM2837_DSI1_*

`BCM2837_DSI1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $700000;`

BCM2837 BSC1 (I2C) BCM2837_BSC1_*

See Section 3

`BCM2837_BSC1_REGS_BASE = BCM2837_PERIPHERALS_BASE + $804000;`

BCM2837 BSC2 (I2C) BCM2837_BSC2_*

See Section 3
Note: BSC2 master is used dedicated with the HDMI interface and should not be used

`BCM2837_BSC2_REGS_BASE = BCM2837_PERIPHERALS_BASE + $805000;`

BCM2837 VEC BCM2837_VEC_*

`BCM2837_VEC_REGS_BASE = BCM2837_PERIPHERALS_BASE + $806000;`

BCM2837 pixel valve 2 BCM2837_PIXELVALVE2_*

`BCM2837_PIXELVALVE2_REGS_BASE = BCM2837_PERIPHERALS_BASE + $807000;`

BCM2837 HDMI BCM2837_HDMI_*

`BCM2837_HDMI_REGS_BASE = BCM2837_PERIPHERALS_BASE + $902000;`

BCM2837 USB BCM2837_USB_*

See Section 15

`BCM2837_USB_REGS_BASE = BCM2837_PERIPHERALS_BASE + $980000;`

BCM2837 V3D BCM2837_V3D_*

`BCM2837_V3D_REGS_BASE = BCM2837_PERIPHERALS_BASE + $C00000;`

BCM2837 DMA controller BCM2837_DMA15_*

Channel 15 (See Section 4)

`BCM2837_DMA15_REGS_BASE = BCM2837_PERIPHERALS_BASE + $E05000;`

BCM2837 IRQ peripheral BCM2837_IRQ_*

IRQs 0-63 are those shared between the GPU and CPU, IRQs 64-95 are CPU-specific
IRQs 0 to 31 appear in the IRQ_pending_1 register

System Timer
`BCM2837_IRQ_SYSTEM_TIMER_0 = 0;`	Already used by the VideoCore GPU (Do not use)
`BCM2837_IRQ_SYSTEM_TIMER_1 = 1;`
`BCM2837_IRQ_SYSTEM_TIMER_2 = 2;`	Already used by the VideoCore GPU (Do not use)
`BCM2837_IRQ_SYSTEM_TIMER_3 = 3;`
Codec
`BCM2837_IRQ_CODEC0 = 4;`
`BCM2837_IRQ_CODEC1 = 5;`
`BCM2837_IRQ_CODEC2 = 6;`
JPEG
`BCM2837_IRQ_JPEG = 7;`	Also available as IRQ 74 in the IRQ_basic_pending register
ISP
`BCM2837_IRQ_ISP = 8;`
USB (Synopsys DesignWare Hi-Speed USB 2.0 On-The-Go Controller)
`BCM2837_IRQ_USB = 9;`	Also available as IRQ 75 in the IRQ_basic_pending register
3D
`BCM2837_IRQ_3D = 10;`	Also available as IRQ 76 in the IRQ_basic_pending register
Transposer
`BCM2837_IRQ_TRANSPOSER = 11;`
Multicore Sync
`BCM2837_IRQ_MULTICORESYNC0 = 12;`
`BCM2837_IRQ_MULTICORESYNC1 = 13;`
`BCM2837_IRQ_MULTICORESYNC2 = 14;`
`BCM2837_IRQ_MULTICORESYNC3 = 15;`
DMA
`BCM2837_IRQ_DMA0 = 16;`
`BCM2837_IRQ_DMA1 = 17;`
`BCM2837_IRQ_DMA2 = 18;`	Also available as IRQ 77 in the IRQ_basic_pending register
`BCM2837_IRQ_DMA3 = 19;`	Also available as IRQ 78 in the IRQ_basic_pending register
`BCM2837_IRQ_DMA4 = 20;`
`BCM2837_IRQ_DMA5 = 21;`
`BCM2837_IRQ_DMA6 = 22;`
`BCM2837_IRQ_DMA7 = 23;`
`BCM2837_IRQ_DMA8 = 24;`
`BCM2837_IRQ_DMA9 = 25;`
`BCM2837_IRQ_DMA10 = 26;`
`BCM2837_IRQ_DMA11_14 = 27;`	BCM2837_IRQ_DMA11 This IRQ is actually shared between DMA channels 11, 12, 13 and 14
`BCM2837_IRQ_DMA_ALL = 28;`	BCM2837_IRQ_DMA12 This IRQ is triggered by any DMA channel (all channels interrupt to allow DMA FIQ)
AUX (UART1, SPI1 and SPI2)
`BCM2837_IRQ_AUX = 29;`
ARM
`BCM2837_IRQ_ARM = 30;`
GPUDMA
`BCM2837_IRQ_GPUDMA = 31;`
IRQs 32 to 63 appear in the IRQ_pending_2 register

Hostport
`BCM2837_IRQ_HOSTPORT = 32;`
Videoscaler
`BCM2837_IRQ_VIDEOSCALER = 33;`
CCP2TX
`BCM2837_IRQ_CCP2TX = 34;`
SDC
`BCM2837_IRQ_SDC = 35;`
DSI0
`BCM2837_IRQ_DSI0 = 36;`
AVE
`BCM2837_IRQ_AVE = 37;`
CAM
`BCM2837_IRQ_CAM0 = 38;`
`BCM2837_IRQ_CAM1 = 39;`
HDMI
`BCM2837_IRQ_HDMI0 = 40;`
`BCM2837_IRQ_HDMI1 = 41;`
Pixelvalve
`BCM2837_IRQ_PIXELVALVE1 = 42;`
I2C/SPI Slave
`BCM2837_IRQ_I2CSPI = 43;`
DSI1
`BCM2837_IRQ_DSI1 = 44;`
PWA
`BCM2837_IRQ_PWA0 = 45;`
`BCM2837_IRQ_PWA1 = 46;`
CPR
`BCM2837_IRQ_CPR = 47;`
SMI
`BCM2837_IRQ_SMI = 48;`
GPIO
`BCM2837_IRQ_GPIO_0 = 49;`	Bank0
`BCM2837_IRQ_GPIO_1 = 50;`	Bank1
`BCM2837_IRQ_GPIO_2 = 51;`	Bank2 (Non existent in BCM2837)
`BCM2837_IRQ_GPIO_ALL = 52;`	BCM2837_IRQ_GPIO_3 Any Bank (all banks interrupt to allow GPIO FIQ)
I2C
`BCM2837_IRQ_I2C = 53;`	Also available as IRQ 79 in the IRQ_basic_pending register
SPI
`BCM2837_IRQ_SPI = 54;`	Also available as IRQ 80 in the IRQ_basic_pending register
I2S PCM sound
`BCM2837_IRQ_I2SPCM = 55;`	Also available as IRQ 81 in the IRQ_basic_pending register
SDHOST
`BCM2837_IRQ_SDHOST = 56;`	Also available as IRQ 82 in the IRQ_basic_pending register
PL011 UART
`BCM2837_IRQ_PL011 = 57;`	Also available as IRQ 83 in the IRQ_basic_pending register
Slimbus
`BCM2837_IRQ_SLIMBUS = 58;`
VEC
`BCM2837_IRQ_VEC = 59;`
CPG
`BCM2837_IRQ_CPG = 60;`
RNG
`BCM2837_IRQ_RNG = 61;`
SD card host controller (EMMC)
`BCM2837_IRQ_SDHCI = 62;`	Also available as IRQ 84 in the IRQ_basic_pending register
AVSPMON
`BCM2837_IRQ_AVSPMON = 63;`
IRQs 64 to 95 appear in the IRQ_basic_pending register

ARM Timer
`BCM2837_IRQ_ARM_TIMER = 64;`	ARM IRQ 0
ARM Mailbox
`BCM2837_IRQ_ARM_MAILBOX = 65;`	ARM IRQ 1
ARM Doorbell
`BCM2837_IRQ_ARM_DOORBELL0 = 66;`	ARM IRQ 2
`BCM2837_IRQ_ARM_DOORBELL1 = 67;`	ARM IRQ 3
ARM GPU Halted
`BCM2837_IRQ_ARM_GPU0HALTED = 68;`	ARM IRQ 4
`BCM2837_IRQ_ARM_GPU1HALTED = 69;`	ARM IRQ 5
ARM Illegal Access
`BCM2837_IRQ_ARM_ILLEGALTYPE0 = 70;`	ARM IRQ 6
`BCM2837_IRQ_ARM_ILLEGALTYPE1 = 71;`	ARM IRQ 7
ARM Pending
`BCM2837_IRQ_ARM_PENDING0 = 72;`	ARM IRQ 8
`BCM2837_IRQ_ARM_PENDING1 = 73;`	ARM IRQ 9
ARM JPEG
`BCM2837_IRQ_ARM_JPEG = 74;`	ARM IRQ 10
ARM USB
`BCM2837_IRQ_ARM_USB = 75;`	ARM IRQ 11
ARM 3D
`BCM2837_IRQ_ARM_3D = 76;`	ARM IRQ 12
ARM DMA
`BCM2837_IRQ_ARM_DMA2 = 77;`	ARM IRQ 13
`BCM2837_IRQ_ARM_DMA3 = 78;`	ARM IRQ 14
ARM I2C
`BCM2837_IRQ_ARM_I2C = 79;`	ARM IRQ 15
ARM SPI
`BCM2837_IRQ_ARM_SPI = 80;`	ARM IRQ 16
ARM I2SPCM
`BCM2837_IRQ_ARM_I2SPCM = 81;`	ARM IRQ 17
ARM SDHOST
`BCM2837_IRQ_ARM_SDHOST = 82;`	ARM IRQ 18
ARM PL011 UART
`BCM2837_IRQ_ARM_PL011 = 83;`	ARM IRQ 19
ARM SDHCI
`BCM2837_IRQ_ARM_SDHCI = 84;`	ARM IRQ 20
IRQs 85 to 95 (ARM IRQs 21 to 31) are not assigned

Number of IRQs shared between the GPU and ARM (These correspond to the IRQs that show up in the IRQ_pending_1 and IRQ_pending_2 registers)
`BCM2837_GPU_IRQ_COUNT = 64;`
Number of ARM specific IRQs (These correspond to IRQs that show up in the first 8 bits of the IRQ_basic_pending register)
`BCM2837_ARM_IRQ_COUNT = 32;`
Number of ARM local IRQs (These correspond to the IRQs that show up in the IRQPending register of the ARM Local registers)
`BCM2837_ARM_LOCAL_IRQ_COUNT = 32;`
Total number of IRQs available
`BCM2837_IRQ_COUNT = BCM2837_GPU_IRQ_COUNT + BCM2837_ARM_IRQ_COUNT + BCM2837_ARM_LOCAL_IRQ_COUNT;`	128
Total number of FIQs available
`BCM2837_FIQ_COUNT = 1;`	This relates only to the shared FIQs, there are more ARM Local FIQs available.

BCM2837 system timer frequency BCM2837_SYSTEM_TIMER_FREQUENCY*

`BCM2837_SYSTEM_TIMER_FREQUENCY = 1000000;`	Default clock frequency of the BCM2837 System Timer (1MHz)

BCM2837 system timer control/status BCM2837_SYSTEM_TIMER_CS_*

See Section 12

`BCM2837_SYSTEM_TIMER_CS_0 = (1 shl 0);`	Already used by the VideoCore GPU (Do not use)
`BCM2837_SYSTEM_TIMER_CS_1 = (1 shl 1);`
`BCM2837_SYSTEM_TIMER_CS_2 = (1 shl 2);`	Already used by the VideoCore GPU (Do not use)
`BCM2837_SYSTEM_TIMER_CS_3 = (1 shl 3);`

BCM2837 DMA control and status BCM2837_DMA_CS_*

See Section 4

`BCM2837_DMA_CS_ACTIVE = (1 shl 0);`	Activate the DMA (This bit enables the DMA. The DMA will start if this bit is set and the CB_ADDR is non zero. The DMA transfer can be paused and resumed by clearing, then setting it again.)
`BCM2837_DMA_CS_END = (1 shl 1);`	DMA End Flag (Set when the transfer described by the current control block is complete. Write 1 to clear.)
`BCM2837_DMA_CS_INT = (1 shl 2);`	Interrupt Status (This is set when the transfer for the CB ends and INTEN is set to 1. Write 1 to clear.)
`BCM2837_DMA_CS_DREQ = (1 shl 3);`	DREQ State (Indicates the state of the selected DREQ (Data Request) signal, ie. the DREQ selected by the PERMAP field of the transfer info.)
`BCM2837_DMA_CS_PAUSED = (1 shl 4);`	DMA Paused State (Indicates if the DMA is currently paused and not transferring data)
`BCM2837_DMA_CS_DREQ_PAUSED = (1 shl 5);`	DMA Paused by DREQ State (Indicates if the DMA is currently paused and not transferring data due to the DREQ being inactive)
`BCM2837_DMA_CS_WAITING_FOR_OUTSTANDING_WRITES = (1 shl 6);`	DMA is Waiting for the Last Write to be Received (Indicates if the DMA is currently waiting for any outstanding writes to be received, and is not transferring data)
Bit 7 Reserved - Write as 0, read as don't care
`BCM2837_DMA_CS_ERROR = (1 shl 8);`	DMA Error (Indicates if the DMA has detected an error)
Bits 9:15 Reserved - Write as 0, read as don't care
`BCM2837_DMA_CS_PRIORITY = ($F shl 16);`	AXI Priority Level (Sets the priority of normal AXI bus transactions. Zero is the lowest priority.)
`BCM2837_DMA_CS_PANIC_PRIORITY = ($F shl 20);`	AXI Panic Priority Level (Sets the priority of panicking AXI bus transactions)
Bits 24:27 Reserved - Write as 0, read as don't care
`BCM2837_DMA_CS_WAIT_FOR_OUTSTANDING_WRITES = (1 shl 28);`	Wait for outstanding writes (When set to 1, the DMA will keep a tally of the AXI writes going out and the write responses coming in.)
`BCM2837_DMA_CS_DISDEBUG = (1 shl 29);`	Disable debug pause signal (When set to 1, the DMA will not stop when the debug pause signal is asserted.)
`BCM2837_DMA_CS_ABORT = (1 shl 30);`	Abort DMA (Writing a 1 to this bit will abort the current DMA CB. The DMA will load the next CB and attempt to continue. The bit cannot be read, and will self clear.)
`BCM2837_DMA_CS_RESET = (1 shl 31);`	DMA Channel Reset (Writing a 1 to this bit will reset the DMA. The bit cannot be read, and will self clear.)

`BCM2837_DMA_CS_PRIORITY_SHIFT = 16;`
`BCM2837_DMA_CS_PANIC_PRIORITY_SHIFT = 20;`

`BCM2837_DMA_CS_PRIORITY_DEFAULT = 0;`
`BCM2837_DMA_CS_PRIORITY_MAX = 15;`

BCM2837 DMA transfer information BCM2837_DMA_TI_*

See Section 4

`BCM2837_DMA_TI_INTEN = (1 shl 0);`	Interrupt Enable (1 = Generate an interrupt when the transfer described by the current Control Block completes)
`BCM2837_DMA_TI_2DMODE = (1 shl 1);`	2D Mode (1 = 2D mode interpret the TXFR_LEN register as YLENGTH number of transfers each of XLENGTH, and add the strides to the address after each transfer)
Bit 2 Reserved - Write as 0, read as don't care
`BCM2837_DMA_TI_WAIT_RESP = (1 shl 3);`	Wait for a Write Response (When set this makes the DMA wait until it receives the AXI write response for each write. This ensures that multiple writes cannot get stacked in the AXI bus pipeline.)
`BCM2837_DMA_TI_DEST_INC = (1 shl 4);`	Destination Address Increment (1 = Destination address increments after each write The address will increment by 4, if DEST_WIDTH=0 else by 32
`BCM2837_DMA_TI_DEST_WIDTH = (1 shl 5);`	Destination Transfer Width (1 = Use 128-bit destination write width. 0 = Use 32-bit destination write width.)
`BCM2837_DMA_TI_DEST_DREQ = (1 shl 6);`	Control Destination Writes with DREQ (1 = The DREQ selected by PERMAP will gate the destination writes)
`BCM2837_DMA_TI_DEST_IGNORE = (1 shl 7);`	Ignore Writes (1 = Do not perform destination writes. 0 = Write data to destination.)
`BCM2837_DMA_TI_SRC_INC = (1 shl 8);`	Source Address Increment (1 = Source address increments after each read. The address will increment by 4, if S_WIDTH=0 else by 32.)
`BCM2837_DMA_TI_SRC_WIDTH = (1 shl 9);`	Source Transfer Width (1 = Use 128-bit source read width. 0 = Use 32-bit source read width.)
`BCM2837_DMA_TI_SRC_DREQ = (1 shl 10);`	Control Source Reads with DREQ (1 = The DREQ selected by PERMAP will gate the source reads)
`BCM2837_DMA_TI_SRC_IGNORE = (1 shl 11);`	Ignore Reads (1 = Do not perform source reads. In addition, destination writes will zero all the write strobes. This is used for fast cache fill operations.)
`BCM2837_DMA_TI_BURST_LENGTH = ($F shl 12);`	Burst Transfer Length (Indicates the burst length of the DMA transfers)
`BCM2837_DMA_TI_PERMAP = ($1F shl 16);`	Peripheral Mapping (Indicates the peripheral number (1-31) whose ready signal shall be used to control the rate of the transfers)
`BCM2837_DMA_TI_WAITS = ($3E shl 21);`	Add Wait Cycles (This slows down the DMA throughput by setting the number of dummy cycles burnt after each DMA read or write operation is completed)
`BCM2837_DMA_TI_NO_WIDE_BURSTS = (1 shl 26);`	Don't Do wide writes as a 2 beat burst (This prevents the DMA from issuing wide writes as 2 beat AXI bursts. This is an inefficient access mode, so the default is to use the bursts.)
Bits 27:31 Reserved - Write as 0, read as don't care

Note: BCM2837_DMA_TI_2DMODE, BCM2837_DMA_TI_DEST_IGNORE, BCM2837_DMA_TI_SRC_IGNORE and BCM2837_DMA_TI_NO_WIDE_BURSTS not available on DMA Lite channels

`BCM2837_DMA_TI_PERMAP_SHIFT = 16;`
`BCM2837_DMA_TI_BURST_LENGTH_SHIFT = 12;`

`BCM2837_DMA_TI_BURST_LENGTH_DEFAULT = 0;`
`BCM2837_DMA_TI_BURST_LENGTH_MAX = 15;`

BCM2837 DMA transfer length BCM2837_DMA_TXFR_LEN_*

See Section 4

`BCM2837_DMA_TXFR_LEN_XLENGTH = ($FFFF shl 0);`	Transfer Length in bytes
`BCM2837_DMA_TXFR_LEN_YLENGTH = ($3FFF shl 16);`	When in 2D mode, This is the Y transfer length, indicating how many xlength transfers are performed. When in normal linear mode this becomes the top bits of the XLENGTH.

Note: BCM2837_DMA_TXFR_LEN_YLENGTH not available on DMA Lite channels

BCM2837 DMA 2D stride BCM2837_DMA_STRIDE_*

See Section 4

`BCM2837_DMA_STRIDE_S_STRIDE = ($FFFF shl 0);`	Destination Stride (2D Mode) (Signed (2 s complement) byte increment to apply to the destination address at the end of each row in 2D mode)
`BCM2837_DMA_STRIDE_D_STRIDE = ($FFFF shl 16);`	Source Stride (2D Mode) (Signed (2 s complement) byte increment to apply to the source address at the end of each row in 2D mode)

Note: BCM2837_DMA_STRIDE_S_STRIDE and BCM2837_DMA_STRIDE_D_STRIDE not available on DMA Lite channels

BCM2837 DMA debug BCM2837_DMA_DEBUG_*

See Section 4

`BCM2837_DMA_DEBUG_READ_LAST_NOT_SET_ERROR = (1 shl 0);`	Read Last Not Set Error
`BCM2837_DMA_DEBUG_FIFO_ERROR = (1 shl 1);`	Fifo Error
`BCM2837_DMA_DEBUG_READ_ERROR = (1 shl 2);`	Slave Read Response Error
Bit 3 Reserved - Write as 0, read as don't care
`BCM2837_DMA_DEBUG_OUTSTANDING_WRITES = ($F shl 4);`	DMA Outstanding Writes Counter
`BCM2837_DMA_DEBUG_DMA_ID = ($FF shl 8);`	DMA Id
`BCM2837_DMA_DEBUG_DMA_STATE = ($1FF shl 16);`	DMA State Machine State
`BCM2837_DMA_DEBUG_VERSION = (7 shl 25);`	DMA Version
`BCM2837_DMA_DEBUG_LITE = (1 shl 28);`	DMA Lite
Bits 29:31 Reserved - Write as 0, read as don't care

BCM2837 DMA engine interrupt status BCM2837_DMA_INT_STATUS_*

See Section 4

`BCM2837_DMA_INT_STATUS_0 = (1 shl 0);`
`BCM2837_DMA_INT_STATUS_1 = (1 shl 1);`
`BCM2837_DMA_INT_STATUS_2 = (1 shl 2);`
`BCM2837_DMA_INT_STATUS_3 = (1 shl 3);`
`BCM2837_DMA_INT_STATUS_4 = (1 shl 4);`
`BCM2837_DMA_INT_STATUS_5 = (1 shl 5);`
`BCM2837_DMA_INT_STATUS_6 = (1 shl 6);`
`BCM2837_DMA_INT_STATUS_7 = (1 shl 7);`
`BCM2837_DMA_INT_STATUS_8 = (1 shl 8);`
`BCM2837_DMA_INT_STATUS_9 = (1 shl 9);`
`BCM2837_DMA_INT_STATUS_10 = (1 shl 10);`
`BCM2837_DMA_INT_STATUS_11 = (1 shl 11);`
`BCM2837_DMA_INT_STATUS_12 = (1 shl 12);`
`BCM2837_DMA_INT_STATUS_13 = (1 shl 13);`
`BCM2837_DMA_INT_STATUS_14 = (1 shl 14);`
`BCM2837_DMA_INT_STATUS_15 = (1 shl 15);`

BCM2837 DMA engine enable BCM2837_DMA_ENABLE_*

See Section 4

`BCM2837_DMA_ENABLE_0 = (1 shl 0);`
`BCM2837_DMA_ENABLE_1 = (1 shl 1);`
`BCM2837_DMA_ENABLE_2 = (1 shl 2);`
`BCM2837_DMA_ENABLE_3 = (1 shl 3);`
`BCM2837_DMA_ENABLE_4 = (1 shl 4);`
`BCM2837_DMA_ENABLE_5 = (1 shl 5);`
`BCM2837_DMA_ENABLE_6 = (1 shl 6);`
`BCM2837_DMA_ENABLE_7 = (1 shl 7);`
`BCM2837_DMA_ENABLE_8 = (1 shl 8);`
`BCM2837_DMA_ENABLE_9 = (1 shl 9);`
`BCM2837_DMA_ENABLE_10 = (1 shl 10);`
`BCM2837_DMA_ENABLE_11 = (1 shl 11);`
`BCM2837_DMA_ENABLE_12 = (1 shl 12);`
`BCM2837_DMA_ENABLE_13 = (1 shl 13);`
`BCM2837_DMA_ENABLE_14 = (1 shl 14);`

BCM2837 DMA engine DREQ peripheral BCM2837_DMA_DREQ_*

See Section 4

`BCM2837_DMA_DREQ_NONE = 0;`
`BCM2837_DMA_DREQ_DSI0 = 1;`
`BCM2837_DMA_DREQ_PCMTX = 2;`
`BCM2837_DMA_DREQ_PCMRX = 3;`
`BCM2837_DMA_DREQ_SMI = 4;`
`BCM2837_DMA_DREQ_PWM = 5;`
`BCM2837_DMA_DREQ_SPITX = 6;`
`BCM2837_DMA_DREQ_SPIRX = 7;`
`BCM2837_DMA_DREQ_BSCSPITX = 8;`	BSC/SPI Slave
`BCM2837_DMA_DREQ_BSCSPIRX = 9;`	BSC/SPI Slave
`BCM2837_DMA_DREQ_RESERVED1 = 10;`
`BCM2837_DMA_DREQ_EMMC = 11;`	SDHCI
`BCM2837_DMA_DREQ_UARTTX = 12;`
`BCM2837_DMA_DREQ_SDHOST = 13;`	SDHOST
`BCM2837_DMA_DREQ_UARTRX = 14;`
`BCM2837_DMA_DREQ_DSI1 = 15;`
`BCM2837_DMA_DREQ_SLIMBUS_MCTX = 16;`
`BCM2837_DMA_DREQ_HDMI = 17;`
`BCM2837_DMA_DREQ_SLIMBUS_MCRX = 18;`
`BCM2837_DMA_DREQ_SLIMBUS_DC0 = 19;`
`BCM2837_DMA_DREQ_SLIMBUS_DC1 = 20;`
`BCM2837_DMA_DREQ_SLIMBUS_DC2 = 21;`
`BCM2837_DMA_DREQ_SLIMBUS_DC3 = 22;`
`BCM2837_DMA_DREQ_SLIMBUS_DC4 = 23;`
`BCM2837_DMA_DREQ_SCALER_FIFO0 = 24;`
`BCM2837_DMA_DREQ_SCALER_FIFO1 = 25;`
`BCM2837_DMA_DREQ_SCALER_FIFO2 = 26;`
`BCM2837_DMA_DREQ_SLIMBUS_DC5 = 27;`
`BCM2837_DMA_DREQ_SLIMBUS_DC6 = 28;`
`BCM2837_DMA_DREQ_SLIMBUS_DC7 = 29;`
`BCM2837_DMA_DREQ_SLIMBUS_DC8 = 30;`
`BCM2837_DMA_DREQ_SLIMBUS_DC9 = 31;`

BCM2837 BSC (I2C0/1/2) control BCM2837_BSC_C_*

See Section 3.2

`BCM2837_BSC_C_I2CEN = (1 shl 15);`	I2C Enable (0 = BSC controller is disabled/1 = BSC controller is enabled)
`BCM2837_BSC_C_INTR = (1 shl 10);`	INTR Interrupt on RX (0 = Don't generate interrupts on RXR condition/1 = Generate interrupt while RXR = 1)
`BCM2837_BSC_C_INTT = (1 shl 9);`	INTT Interrupt on TX (0 = Don't generate interrupts on TXW condition/1 = Generate interrupt while TXW = 1)
`BCM2837_BSC_C_INTD = (1 shl 8);`	INTD Interrupt on DONE (0 = Don't generate interrupts on DONE condition/1 = Generate interrupt while DONE = 1)
`BCM2837_BSC_C_ST = (1 shl 7);`	ST Start Transfer (0 = No action/1 = Start a new transfer. One shot operation. Read back as 0)
`BCM2837_BSC_C_CLEAR = (1 shl 5);`	CLEAR FIFO Clear (00 = No action/x1 = Clear FIFO. One shot operation/1x = Clear FIFO. One shot operation)
`BCM2837_BSC_C_READ = (1 shl 0);`	READ Read Transfer (0 = Write Packet Transfer/1 = Read Packet Transfer)

BCM2837 BSC (I2C0/1/2) status BCM2837_BSC_S_*

See Section 3.2

`BCM2837_BSC_S_CLKT = (1 shl 9);`	CLKT Clock Stretch Timeout (0 = No errors detected. 1 = Slave has held the SCL signal low (clock stretching) for longer and that specified in the I2CCLKT register Cleared by writing 1 to the field)
`BCM2837_BSC_S_ERR = (1 shl 8);`	ERR ACK Error (0 = No errors detected. 1 = Slave has not acknowledged its address. Cleared by writing 1 to the field.)
`BCM2837_BSC_S_RXF = (1 shl 7);`	RXF - FIFO Full (0 = FIFO is not full. 1 = FIFO is full. If a read is underway, no further serial data will be received until data is read from FIFO.)
`BCM2837_BSC_S_TXE = (1 shl 6);`	TXE - FIFO Empty (0 = FIFO is not empty. 1 = FIFO is empty. If a write is underway, no further serial data can be transmitted until data is written to the FIFO.)
`BCM2837_BSC_S_RXD = (1 shl 5);`	RXD - FIFO contains Data (0 = FIFO is empty. 1 = FIFO contains at least 1 byte. Cleared by reading sufficient data from FIFO.)
`BCM2837_BSC_S_TXD = (1 shl 4);`	TXD - FIFO can accept Data (0 = FIFO is full. The FIFO cannot accept more data. 1 = FIFO has space for at least 1 byte.)
`BCM2837_BSC_S_RXR = (1 shl 3);`	RXR - FIFO needs Reading (full) (0 = FIFO is less than full and a read is underway. 1 = FIFO is or more full and a read is underway. Cleared by reading sufficient data from the FIFO.)
`BCM2837_BSC_S_TXW = (1 shl 2);`	TXW - FIFO needs Writing (full) (0 = FIFO is at least full and a write is underway (or sufficient data to send). 1 = FIFO is less then full and a write is underway. Cleared by writing sufficient data to the FIFO.)
`BCM2837_BSC_S_DONE = (1 shl 1);`	DONE Transfer Done (0 = Transfer not completed. 1 = Transfer complete. Cleared by writing 1 to the field.)
`BCM2837_BSC_S_TA = (1 shl 0);`	TA Transfer Active (0 = Transfer not active. 1 = Transfer active.)

BCM2837 BSC (I2C0/1/2) data length BCM2837_BSC_DLEN_*

See Section 3.2

`BCM2837_BSC_DLEN_MASK = $FFFF;`	Data Length. (Writing to DLEN specifies the number of bytes to be transmitted/received. Reading from DLEN when TA = 1 or DONE = 1, returns the number of bytes still to be transmitted or received.)

BCM2837 BSC (I2C0/1/2) slave address BCM2837_BSC_A_*

See Section 3.2

`BCM2837_BSC_A_MASK = $7F;`	Slave Address

BCM2837 BSC (I2C0/1/2) data FIFO BCM2837_BSC_FIFO_*

See Section 3.2

`BCM2837_BSC_FIFO_MASK = $FF;`	Writes to the register write transmit data to the FIFO. Reads from register reads received data from the FIFO.
`BCM2837_BSC_FIFO_SIZE = 16;`

BCM2837 BSC (I2C0/1/2) clock divider BCM2837_BSC_CDIV_*

See Section 3.2

`BCM2837_BSC_CDIV_MASK = $FFFF;`	Clock Divider (SCL = core clock/CDIV) (CDIV is always rounded down to an even number)

BCM2837 BSC (I2C0/1/2) data delay BCM2837_BSC_DEL_*

See Section 3.2

`BCM2837_BSC_DEL_FEDL_MASK = ($FFFF shl 16);`	FEDL Falling Edge Delay (Number of core clock cycles to wait after the falling edge of SCL before outputting next bit of data)
`BCM2837_BSC_DEL_REDL_MASK = ($FFFF shl 0);`	REDL Rising Edge Delay (Number of core clock cycles to wait after the rising edge of SCL before reading the next bit of data)
`BCM2837_BSC_DEL_FEDL_SHIFT = 16;`
`BCM2837_BSC_DEL_REDL_SHIFT = 0;`

BCM2837 BSC (I2C0/1/2) clock stretch timeout BCM2837_BSC_CLKT_TOUT_*

See Section 3.2

`BCM2837_BSC_CLKT_TOUT_MASK = $FFFF;`	TOUT Clock Stretch Timeout Value (Number of SCL clock cycles to wait after the rising edge of SCL before deciding that the slave is not responding)

BCM2837 SPI0 BCM2837_SPI0_CS_*

See Section 10.5

`BCM2837_SPI0_CS_LEN_LONG = (1 shl 25);`	Enable Long data word in Lossi mode if DMA_LEN is set (0 = writing to the FIFO will write a single byte/1 = writing to the FIFO will write a 32 bit word)
`BCM2837_SPI0_CS_DMA_LEN = (1 shl 24);`	Enable DMA mode in Lossi mode
`BCM2837_SPI0_CS_CSPOL2 = (1 shl 23);`	Chip Select 2 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2837_SPI0_CS_CSPOL1 = (1 shl 22);`	Chip Select 1 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2837_SPI0_CS_CSPOL0 = (1 shl 21);`	Chip Select 0 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2837_SPI0_CS_RXF = (1 shl 20);`	RXF - RX FIFO Full (0 = RXFIFO is not full/1 = RX FIFO is full. No further serial data will be sent/received until data is read from FIFO.)
`BCM2837_SPI0_CS_RXR = (1 shl 19);`	RXR RX FIFO needs Reading (full) (0 = RX FIFO is less than full (or not active TA = 0)/1 = RX FIFO is or more full. Cleared by reading sufficient data from the RX FIFO or setting TA to 0.)
`BCM2837_SPI0_CS_TXD = (1 shl 18);`	TXD TX FIFO can accept Data (0 = TX FIFO is full and so cannot accept more data/1 = TX FIFO has space for at least 1 byte)
`BCM2837_SPI0_CS_RXD = (1 shl 17);`	RXD RX FIFO contains Data (0 = RX FIFO is empty/1 = RX FIFO contains at least 1 byte)
`BCM2837_SPI0_CS_DONE = (1 shl 16);`	DONE Transfer Done (0 = Transfer is in progress (or not active TA = 0)/1 = Transfer is complete. Cleared by writing more data to the TX FIFO or setting TA to 0.
`BCM2837_SPI0_CS_TE_EN = (1 shl 15);`	Unused
`BCM2837_SPI0_CS_LMONO = (1 shl 14);`	Unused
`BCM2837_SPI0_CS_LEN = (1 shl 13);`	LEN LoSSI enable (0 = The serial interface will behave as an SPI master/1 = The serial interface will behave as a LoSSI master)
`BCM2837_SPI0_CS_REN = (1 shl 12);`	REN Read Enable. If this bit is set, the SPI peripheral will be able to send data to this device (0 = We intend to write to the SPI peripheral/1 = We intend to read from the SPI peripheral)
`BCM2837_SPI0_CS_ADCS = (1 shl 11);`	ADCS Automatically Deassert Chip Select (0 = Don't automatically deassert chip select at the end of a DMA transfer chip select is manually controlled by software/1 = Automatically deassert chip select at the end of a DMA transfer as determined by SPIDLEN)
`BCM2837_SPI0_CS_INTR = (1 shl 10);`	INTR Interrupt on RXR (0 = Don't generate interrupts on RX FIFO condition/1 = Generate interrupt while RXR = 1)
`BCM2837_SPI0_CS_INTD = (1 shl 9);`	INTD Interrupt on Done (0 = Don't generate interrupt on transfer complete/1 = Generate interrupt when DONE = 1)
`BCM2837_SPI0_CS_DMAEN = (1 shl 8);`	DMAEN DMA Enable (0 = No DMA requests will be issued/1 = Enable DMA operation. Peripheral generates data requests. These will be taken in four-byte words until the SPIDLEN has been reached.
`BCM2837_SPI0_CS_TA = (1 shl 7);`	Transfer Active (0 = Transfer not active/1 = Transfer active)
`BCM2837_SPI0_CS_CSPOL = (1 shl 6);`	Chip Select Polarity (0 = Chip select lines are active low/1 = Chip select lines are active high
`BCM2837_SPI0_CS_CLEAR_RX = (1 shl 5);`	CLEAR FIFO Clear (00 = No action/x1 = Clear TX FIFO. One shot operation/1x = Clear RX FIFO. One shot operation.)
`BCM2837_SPI0_CS_CLEAR_TX = (1 shl 4);`	As above
`BCM2837_SPI0_CS_CPOL = (1 shl 3);`	Clock Polarity (0 = Rest state of clock = low/1 = Rest state of clock = high)
`BCM2837_SPI0_CS_CPHA = (1 shl 2);`	Clock Phase (0 = First SCLK transition at middle of data bit/1 = First SCLK transition at beginning of data bit)
`BCM2837_SPI0_CS_CS_0 = (0 shl 0);`	Chip Select (00 = Chip select 0/01 = Chip select 1/10 = Chip select 2/11 = Reserved
`BCM2837_SPI0_CS_CS_1 = (1 shl 0);`	As above
`BCM2837_SPI0_CS_CS_2 = (2 shl 0);`	As above

`BCM2837_SPI0_CS_CS_MASK = (3 shl 0);`

`BCM2837_SPI0_FIFO_DMA_DATA = $FFFFFFFF;`	DMA Mode (DMAEN set) If TA is clear, the first 32-bit write to this register will control SPIDLEN and SPICS. Subsequent reads and writes will be taken as four-byte data words to be read/written to the FIFO.s
`BCM2837_SPI0_FIFO_IRQ_DATA = $000000FF;`	Poll/Interrupt Mode (DMAEN clear, TA set) Writes to the register write bytes to TX FIFO. Reads from register read bytes from the RX FIFO.

`BCM2837_SPI0_CLK_CDIV = $0000FFFF;`	Clock Divider (SCLK = Core Clock/CDIV) If CDIV is set to 0, the divisor is 65536. The divisor must be a multiple of 2. Odd numbers rounded down. The maximum SPI clock rate is of the APB clock.

`BCM2837_SPI0_DLEN_LEN = $0000FFFF;`	Data Length. The number of bytes to transfer. This field is only valid for DMA mode (DMAEN set) and controls how many bytes to transmit (and therefore receive).

`BCM2837_SPI0_LTOH_TOH = $0000000F;`	This sets the Output Hold delay in APB clocks (A value of 0 causes a 1 clock delay)

`BCM2837_SPI0_DC_RPANIC = ($FF shl 24);`	DMA Read Panic Threshold (Generate the Panic signal to the RX DMA engine whenever the RX FIFO level is greater than this amount)
`BCM2837_SPI0_DC_RDREQ = ($FF shl 16);`	DMA Read Request Threshold (Generate A DREQ to the RX DMA engine whenever the RX FIFO level is greater than this amount) (RX DREQ is also generated if the transfer has finished but the RXFIFO isn't empty)
`BCM2837_SPI0_DC_TPANIC = ($FF shl 8);`	DMA Write Panic Threshold (Generate the Panic signal to the TX DMA engine whenever the TX FIFO level is less than or equal to this amount)
`BCM2837_SPI0_DC_TDREQ = ($FF shl 0);`	DMA Write Request Threshold (Generate a DREQ signal to the TX DMA engine whenever the TX FIFO level is less than or equal to this amount)

I2C/SPI slave DR (Data) register BCM2837_I2CSPI_DR_*

See Section 11.2

`BCM2837_I2CSPI_DR_RXFLEVEL_MASK = ($1F shl 27);`	RX FIFO Level
`BCM2837_I2CSPI_DR_RXFLEVEL_SHIFT = 27;`
`BCM2837_I2CSPI_DR_TXFLEVEL_MASK = ($1F shl 22);`	TX FIFO Level
`BCM2837_I2CSPI_DR_TXFLEVEL_SHIFT = 22;`
`BCM2837_I2CSPI_DR_RXBUSY = (1 shl 21);`	Receive Busy
`BCM2837_I2CSPI_DR_TXFE = (1 shl 20);`	TX FIFO Empty
`BCM2837_I2CSPI_DR_RXFF = (1 shl 19);`	RX FIFO Full
`BCM2837_I2CSPI_DR_TXFF = (1 shl 18);`	TX FIFO Full
`BCM2837_I2CSPI_DR_RXFE = (1 shl 17);`	RX FIFO Empty
`BCM2837_I2CSPI_DR_TXBUSY = (1 shl 16);`	Transmit Busy
`BCM2837_I2CSPI_DR_UE = (1 shl 9);`	TX Underrun Error
`BCM2837_I2CSPI_DR_OE = (1 shl 8);`	RX Overrun Error
`BCM2837_I2CSPI_DR_DATA_MASK = ($FF shl 0);`	Received/Transferred data

I2C/SPI slave RSR (Status) register BCM2837_I2CSPI_RSR_*

See Section 11.2

`BCM2837_I2CSPI_RSR_UE = (1 shl 1);`	TX Underrun Error
`BCM2837_I2CSPI_RSR_OE = (1 shl 0);`	RX Overrun Error

I2C/SPI slave SLV (Slave) register BCM2837_I2CSPI_SLV_*

See Section 11.2

`BCM2837_I2CSPI_SLV_ADDR_MASK = ($7F shl 0);`	I2C Slave Address

I2C/SPI slave CR (Control) register BCM2837_I2CSPI_CR_*

See Section 11.2

`BCM2837_I2CSPI_CR_INV_TXF = (1 shl 13);`	Inverse TX status flags
`BCM2837_I2CSPI_CR_TESTFIFO = (1 shl 11);`	TEST FIFO
`BCM2837_I2CSPI_CR_INV_RXF = (1 shl 10);`	Inverse RX status flags
`BCM2837_I2CSPI_CR_RXE = (1 shl 9);`	Receive Enable
`BCM2837_I2CSPI_CR_TXE = (1 shl 8);`	Transmit Enable
`BCM2837_I2CSPI_CR_TXE = (1 shl 8);`	Transmit Enable
`BCM2837_I2CSPI_CR_CPOL = (1 shl 4);`	Clock Polarity
`BCM2837_I2CSPI_CR_CPHA = (1 shl 3);`	Clock Phase
`BCM2837_I2CSPI_CR_I2C = (1 shl 2);`	I2C Enable
`BCM2837_I2CSPI_CR_SPI = (1 shl 1);`	SPI Enable
`BCM2837_I2CSPI_CR_EN = (1 shl 0);`	Enable Device

I2C/SPI slave FR (Flags) register BCM2837_I2CSPI_FR_*

See Section 11.2

`BCM2837_I2CSPI_RXFLEVEL_MASK = ($1F shl 11);`	RX FIFO Level
`BCM2837_I2CSPI_RXFLEVEL_SHIFT = 11;`
`BCM2837_I2CSPI_TXFLEVEL_MASK = ($1F shl 6);`	TX FIFO Level
`BCM2837_I2CSPI_TXFLEVEL_SHIFT = 6;`
`BCM2837_I2CSPI_FR_RXBUSY = (1 shl 5);`	Receive Busy
`BCM2837_I2CSPI_FR_TXFE = (1 shl 4);`	TX FIFO Empty
`BCM2837_I2CSPI_FR_RXFF = (1 shl 3);`	RX FIFO Full
`BCM2837_I2CSPI_FR_TXFF = (1 shl 2);`	TX FIFO Full
`BCM2837_I2CSPI_FR_RXFE = (1 shl 1);`	RX FIFO Empty
`BCM2837_I2CSPI_FR_TXBUSY = (1 shl 0);`	Transmit Busy

I2C/SPI slave IFLS (Interrupt FIFO Level Select) register BCM2837_I2CSPI_IFLS_*

See Section 11.2

`BCM2837_I2CSPI_IFLS_RXIFLSEL_MASK = (7 shl 3);`	RX Interrupt FIFO Level Select
`BCM2837_I2CSPI_IFLS_RXIFLSEL_SHIFT = 3;`
`BCM2837_I2CSPI_IFLS_RXIFLSEL1_8 = (0 shl 3);`	000 RX FIFO gets 1/8 full
`BCM2837_I2CSPI_IFLS_RXIFLSEL1_4 = (1 shl 3);`	001 RX FIFO gets 1/4 full
`BCM2837_I2CSPI_IFLS_RXIFLSEL1_2 = (2 shl 3);`	010 RX FIFO gets 1/2 full
`BCM2837_I2CSPI_IFLS_RXIFLSEL3_4 = (3 shl 3);`	011 RX FIFO gets 3/4 full
`BCM2837_I2CSPI_IFLS_RXIFLSEL7_8 = (4 shl 3);`	100 RX FIFO gets 7/8 full
`BCM2837_I2CSPI_IFLS_TXIFLSEL_MASK = (7 shl 0);`	TX Interrupt FIFO Level Select
`BCM2837_I2CSPI_IFLS_TXIFLSEL_SHIFT = 0;`
`BCM2837_I2CSPI_IFLS_TXIFLSEL1_8 = (0 shl 0);`	000 TX FIFO gets 1/8 full
`BCM2837_I2CSPI_IFLS_TXIFLSEL1_4 = (1 shl 0);`	001 TX FIFO gets 1/4 full
`BCM2837_I2CSPI_IFLS_TXIFLSEL1_2 = (2 shl 0);`	010 TX FIFO gets 1/2 full
`BCM2837_I2CSPI_IFLS_TXIFLSEL3_4 = (3 shl 0);`	011 TX FIFO gets 3/4 full
`BCM2837_I2CSPI_IFLS_TXIFLSEL3_4 = (3 shl 0);`	011 TX FIFO gets 3/4 full

I2C/SPI slave IMSC (Interrupt Mask Set Clear) register BCM2837_I2CSPI_IMSC_*

See Section 11.2

`BCM2837_I2CSPI_IMSC_OEIM = (1 shl 3);`	Overrun error interrupt mask
`BCM2837_I2CSPI_IMSC_BEIM = (1 shl 2);`	Break error interrupt mask
`BCM2837_I2CSPI_IMSC_TXIM = (1 shl 1);`	Transmit interrupt mask
`BCM2837_I2CSPI_IMSC_RXIM = (1 shl 0);`	Receive interrupt mask

I2C/SPI slave RIS (Raw Interrupt Status) register BCM2837_I2CSPI_RIS_*

See Section 11.2

`BCM2837_I2CSPI_RIS_OERIS = (1 shl 3);`	Overrun error interrupt status
`BCM2837_I2CSPI_RIS_BERIS = (1 shl 2);`	Break error interrupt status
`BCM2837_I2CSPI_RIS_TXRIS = (1 shl 1);`	Transmit interrupt status
`BCM2837_I2CSPI_RIS_RXRIS = (1 shl 0);`	Receive interrupt status

I2C/SPI slave MIS (Masked Interrupt Status) register BCM2837_I2CSPI_MIS_*

See Section 11.2

`BCM2837_I2CSPI_MIS_OEMIS = (1 shl 3);`	Overrun error masked interrupt status
`BCM2837_I2CSPI_MIS_BEMIS = (1 shl 2);`	Break error masked interrupt status
`BCM2837_I2CSPI_MIS_TXMIS = (1 shl 1);`	Transmit masked interrupt status
`BCM2837_I2CSPI_MIS_RXMIS = (1 shl 0);`	Receive masked interrupt status

I2C/SPI slave ICR (Interrupt Clear Register) register BCM2837_I2CSPI_ICR_*

See Section 11.2

`BCM2837_I2CSPI_ICR_OEIC = (1 shl 3);`	Overrun error interrupt clear
`BCM2837_I2CSPI_ICR_BEIC = (1 shl 2);`	Break error interrupt clear
`BCM2837_I2CSPI_ICR_TXIC = (1 shl 1);`	Transmit interrupt clear
`BCM2837_I2CSPI_ICR_RXIC = (1 shl 0);`	Receive interrupt clear

BCM2837 PWM control BCM2837_PWM_CTL_*

See Section 9.6

`BCM2837_PWM_CTL_MSEN2 = (1 shl 15);`	Channel 2 M/S Enable (0: PWM algorithm is used/1: M/S transmission is used)
Bit 14 Reserved - Write as 0, read as don't care
`BCM2837_PWM_CTL_USEF2 = (1 shl 13);`	Channel 2 Use Fifo (0: Data register is transmitted/1: Fifo is used for transmission)
`BCM2837_PWM_CTL_POLA2 = (1 shl 12);`	Channel 2 Polarity (0 : 0=low 1=high/1: 1=low 0=high)
`BCM2837_PWM_CTL_SBIT2 = (1 shl 11);`	Channel 2 Silence Bit (Defines the state of the output when no transmission takes place)
`BCM2837_PWM_CTL_RPTL2 = (1 shl 10);`	Channel 2 Repeat Last Data (0: Transmission interrupts when FIFO is empty/1: Last data in FIFO is transmitted repetedly until FIFO is not empty)
`BCM2837_PWM_CTL_MODE2 = (1 shl 9);`	Channel 2 Mode (0: PWM mode/1: Serialiser mode)
`BCM2837_PWM_CTL_PWEN2 = (1 shl 8);`	Channel 2 Enable (0: Channel is disabled/1: Channel is enabled)
`BCM2837_PWM_CTL_MSEN1 = (1 shl 7);`	Channel 1 M/S Enable (0: PWM algorithm is used/1: M/S transmission is used)
`BCM2837_PWM_CTL_CLRF1 = (1 shl 6);`	Clear Fifo (1: Clears FIFO/0: Has no effect) (This is a single shot operation. This bit always reads 0)
`BCM2837_PWM_CTL_USEF1 = (1 shl 5);`	Channel 1 Use Fifo (0: Data register is transmitted/1: Fifo is used for transmission)
`BCM2837_PWM_CTL_POLA1 = (1 shl 4);`	Channel 1 Polarity (0 : 0=low 1=high/1: 1=low 0=high)
`BCM2837_PWM_CTL_SBIT1 = (1 shl 3);`	Channel 1 Silence Bit (Defines the state of the output when no transmission takes place)
`BCM2837_PWM_CTL_RPTL1 = (1 shl 2);`	Channel 1 Repeat Last Data (0: Transmission interrupts when FIFO is empty/1: Last data in FIFO is transmitted repetedly until FIFO is not empty)
`BCM2837_PWM_CTL_MODE1 = (1 shl 1);`	Channel 1 Mode (0: PWM mode/1: Serialiser mode)
`BCM2837_PWM_CTL_PWEN1 = (1 shl 0);`	Channel 1 Enable (0: Channel is disabled/1: Channel is enabled)

BCM2837 PWM status BCM2837_PWM_STA_*

See Section 9.6

`BCM2837_PWM_STA_STA4 = (1 shl 12);`	Channel 4 State
`BCM2837_PWM_STA_STA3 = (1 shl 11);`	Channel 3 State
`BCM2837_PWM_STA_STA2 = (1 shl 10);`	Channel 2 State
`BCM2837_PWM_STA_STA1 = (1 shl 9);`	Channel 1 State
`BCM2837_PWM_STA_BERR = (1 shl 8);`	Bus Error Flag
`BCM2837_PWM_STA_GAPO4 = (1 shl 7);`	Channel 4 Gap Occurred Flag
`BCM2837_PWM_STA_GAPO3 = (1 shl 6);`	Channel 3 Gap Occurred Flag
`BCM2837_PWM_STA_GAPO2 = (1 shl 5);`	Channel 2 Gap Occurred Flag
`BCM2837_PWM_STA_GAPO1 = (1 shl 4);`	Channel 1 Gap Occurred Flag
`BCM2837_PWM_STA_RERR1 = (1 shl 3);`	Fifo Read Error Flag
`BCM2837_PWM_STA_WERR1 = (1 shl 2);`	Fifo Write Error Flag
`BCM2837_PWM_STA_EMPT1 = (1 shl 1);`	Fifo Empty Flag
`BCM2837_PWM_STA_FULL1 = (1 shl 0);`	Fifo Full Flag

BCM2837 PWM DMA configuration BCM2837_PWM_DMAC_*

See Section 9.6

`BCM2837_PWM_DMAC_ENAB = (1 shl 31);`	DMA Enable (0: DMA disabled/1: DMA enabled)
`BCM2837_PWM_DMAC_PANIC = ($FF shl 8);`	DMA Threshold for PANIC signal (Default: 0x7)
`BCM2837_PWM_DMAC_DREQ = ($FF shl 0);`	DMA Threshold for DREQ signal (Default: 0x7)

BCM2837 PWM BCM2837_PWM_*

`BCM2837_PWM_CTL = $00000000;`	PWM Control
`BCM2837_PWM_STA = $00000004;`	PWM Status
`BCM2837_PWM_DMAC = $00000008;`	PWM DMA Configuration
`BCM2837_PWM_RNG1 = $00000010;`	PWM Channel 1 Range
`BCM2837_PWM_DAT1 = $00000014;`	PWM Channel 1 Data
`BCM2837_PWM_FIF1 = $00000018;`	PWM FIFO Input
`BCM2837_PWM_RNG2 = $00000020;`	PWM Channel 2 Range
`BCM2837_PWM_DAT2 = $00000024;`	PWM Channel 2 Data

BCM2837 PL011 UART data BCM2837_PL011_DR_*

See Section 13.4

`BCM2837_PL011_DR_OE = (1 shl 11);`	Overrun error
`BCM2837_PL011_DR_BE = (1 shl 10);`	Break error
`BCM2837_PL011_DR_PE = (1 shl 9);`	Parity error
`BCM2837_PL011_DR_FE = (1 shl 8);`	Framing error
`BCM2837_PL011_DR_DATA = ($FF shl 0);`	Receive/Transmit data
`BCM2837_PL011_DR_ERROR = BCM2837_PL011_DR_OE or BCM2837_PL011_DR_BE or BCM2837_PL011_DR_PE or BCM2837_PL011_DR_FE;`

BCM2837 PL011 UART receive status/error clear BCM2837_PL011_RSRECR_*

See Section 13.4

`BCM2837_PL011_RSRECR_OE = (1 shl 3);`	Overrun error
`BCM2837_PL011_RSRECR_BE = (1 shl 2);`	Break error
`BCM2837_PL011_RSRECR_PE = (1 shl 1);`	Parity error
`BCM2837_PL011_RSRECR_FE = (1 shl 0);`	Framing error

BCM2837 PL011 UART flag BCM2837_PL011_FR_*

See Section 13.4

`BCM2837_PL011_FR_RI = (1 shl 8);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_FR_TXFE = (1 shl 7);`	Transmit FIFO empty
`BCM2837_PL011_FR_RXFF = (1 shl 6);`	Receive FIFO full
`BCM2837_PL011_FR_TXFF = (1 shl 5);`	Transmit FIFO full
`BCM2837_PL011_FR_RXFE = (1 shl 4);`	Receive FIFO empty
`BCM2837_PL011_FR_BUSY = (1 shl 3);`	UART busy
`BCM2837_PL011_FR_DCD = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_FR_DSR = (1 shl 1);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_FR_CTS = (1 shl 0);`	Clear to send (This bit is the complement of the UART clear to send, nUARTCTS, modem status input. That is, the bit is 1 when nUARTCTS is LOW.)

BCM2837 PL011 UART IrDA

See Section 13.4

This register is disabled, writing to it has no effect and reading returns 0

BCM2837 PL011 UART integer baud rate divisor BCM2837_PL011_IBRD_*

See Section 13.4

`BCM2837_PL011_IBRD_MASK = ($FFFF shl 0);`

BCM2837 PL011 UART fractional baud rate divisor BCM2837_PL011_FBRD_*

See Section 13.4

`BCM2837_PL011_FBRD_MASK = ($3F shl 0);`

BCM2837 PL011 UART line control BCM2837_PL011_LCRH_*

See Section 13.4

`BCM2837_PL011_LCRH_SPS = (1 shl 7);`	Stick parity select
`BCM2837_PL011_LCRH_WLEN = (3 shl 5);`	Word length
`BCM2837_PL011_LCRH_WLEN8 = (3 shl 5);`	8 bits
`BCM2837_PL011_LCRH_WLEN7 = (2 shl 5);`	7 bits
`BCM2837_PL011_LCRH_WLEN6 = (1 shl 5);`	6 bits
`BCM2837_PL011_LCRH_WLEN5 = (0 shl 5);`	5 bits
`BCM2837_PL011_LCRH_FEN = (1 shl 4);`	Enable FIFOs
`BCM2837_PL011_LCRH_STP2 = (1 shl 3);`	Two stop bits select
`BCM2837_PL011_LCRH_EPS = (1 shl 2);`	Even parity select (0 = odd parity/1 = even parity)
`BCM2837_PL011_LCRH_PEN = (1 shl 1);`	Parity enable
`BCM2837_PL011_LCRH_BRK = (1 shl 0);`	Send break

BCM2837 PL011 UART control BCM2837_PL011_CR_*

See Section 13.4

`BCM2837_PL011_CR_CTSEN = (1 shl 15);`	CTS hardware flow control enable (If this bit is set to 1 data is only transmitted when the nUARTCTS signal is asserted)
`BCM2837_PL011_CR_RTSEN = (1 shl 14);`	RTS hardware flow control enable (If this bit is set to 1 data is only requested when there is space in the receive FIFO for it to be received)
`BCM2837_PL011_CR_OUT2 = (1 shl 13);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_CR_OUT1 = (1 shl 12);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_CR_RTS = (1 shl 11);`	Request to send (This bit is the complement of the UART request to send, nUARTRTS, modem status output. That is, when the bit is programmed to a 1 then nUARTRTS is LOW.)
`BCM2837_PL011_CR_DTR = (1 shl 10);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_CR_RXE = (1 shl 9);`	Receive enable
`BCM2837_PL011_CR_TXE = (1 shl 8);`	Transmit enable
`BCM2837_PL011_CR_LBE = (1 shl 7);`	Loopback enable
Bits 6:3 Reserved - Write as 0, read as don't care
`BCM2837_PL011_CR_SIRLP = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_CR_SIREN = (1 shl 1);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_CR_UARTEN = (1 shl 0);`	UART enable

BCM2837 PL011 UART interrupt FIFO level select BCM2837_PL011_IFLS_*

See Section 13.4

`BCM2837_PL011_IFLS_RXIFPSEL = (7 shl 9);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_IFLS_TXIFPSEL = (7 shl 6);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_IFLS_RXIFLSEL = (7 shl 3);`	Receive interrupt FIFO level select
`BCM2837_PL011_IFLS_RXIFLSEL1_8 = (0 shl 3);`	b000 = Receive FIFO becomes >= 1/8 full
`BCM2837_PL011_IFLS_RXIFLSEL1_4 = (1 shl 3);`	b001 = Receive FIFO becomes >= 1/4 full
`BCM2837_PL011_IFLS_RXIFLSEL1_2 = (2 shl 3);`	b010 = Receive FIFO becomes >= 1/2 full
`BCM2837_PL011_IFLS_RXIFLSEL3_4 = (3 shl 3);`	b011 = Receive FIFO becomes >= 3/4 full
`BCM2837_PL011_IFLS_RXIFLSEL7_8 = (4 shl 3);`	b100 = Receive FIFO becomes >= 7/8 full
`BCM2837_PL011_IFLS_TXIFLSEL = (7 shl 0);`	Transmit interrupt FIFO level select
`BCM2837_PL011_IFLS_TXIFLSEL1_8 = (0 shl 0);`	b000 = Transmit FIFO becomes <= 1/8 full
`BCM2837_PL011_IFLS_TXIFLSEL1_4 = (1 shl 0);`	b001 = Transmit FIFO becomes <= 1/4 full
`BCM2837_PL011_IFLS_TXIFLSEL1_2 = (2 shl 0);`	b010 = Transmit FIFO becomes <= 1/2 full
`BCM2837_PL011_IFLS_TXIFLSEL3_4 = (3 shl 0);`	b011 = Transmit FIFO becomes <= 3/4 full
`BCM2837_PL011_IFLS_TXIFLSEL7_8 = (4 shl 0);`	b100 = Transmit FIFO becomes <= 7/8 full

BCM2837 PL011 UART interrupt mask set/clear BCM2837_PL011_IMSC_*

See Section 13.4

`BCM2837_PL011_IMSC_OEIM = (1 shl 10);`	Overrun error interrupt mask
`BCM2837_PL011_IMSC_BEIM = (1 shl 9);`	Break error interrupt mask
`BCM2837_PL011_IMSC_PEIM = (1 shl 8);`	Parity error interrupt mask
`BCM2837_PL011_IMSC_FEIM = (1 shl 7);`	Framing error interrupt mask
`BCM2837_PL011_IMSC_RTIM = (1 shl 6);`	Receive timeout interrupt mask
`BCM2837_PL011_IMSC_TXIM = (1 shl 5);`	Transmit interrupt mask
`BCM2837_PL011_IMSC_RXIM = (1 shl 4);`	Receive interrupt mask
`BCM2837_PL011_IMSC_DSRMIM = (1 shl 3);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_IMSC_DCDMIM = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_IMSC_CTSMIM = (1 shl 1);`	nUARTCTS modem interrupt mask
`BCM2837_PL011_IMSC_RIMIM = (1 shl 0);`	Unsupported, write zero, read as don't care.

BCM2837 PL011 UART raw interrupt status BCM2837_PL011_RIS_*

See Section 13.4

`BCM2837_PL011_RIS_OERIS = (1 shl 10);`	Overrun error interrupt status
`BCM2837_PL011_RIS_BERIS = (1 shl 9);`	Break error interrupt status
`BCM2837_PL011_RIS_PERIS = (1 shl 8);`	Parity error interrupt status
`BCM2837_PL011_RIS_FERIS = (1 shl 7);`	Framing error interrupt status
`BCM2837_PL011_RIS_RTRIS = (1 shl 6);`	Receive timeout interrupt status
`BCM2837_PL011_RIS_TXRIS = (1 shl 5);`	Transmit interrupt status
`BCM2837_PL011_RIS_RXRIS = (1 shl 4);`	Receive interrupt status
`BCM2837_PL011_RIS_DSRMRIS = (1 shl 3);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_RIS_DCDMRIS = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_RIS_CTSMRIS = (1 shl 1);`	nUARTCTS modem interrupt status
`BCM2837_PL011_RIS_RIMRIS = (1 shl 0);`	Unsupported, write zero, read as don't care.

BCM2837 PL011 UART masked interrupt status BCM2837_PL011_MIS_*

See Section 13.4

`BCM2837_PL011_MIS_OEMIS = (1 shl 10);`	Overrun error masked interrupt status
`BCM2837_PL011_MIS_BEMIS = (1 shl 9);`	Break error masked interrupt status
`BCM2837_PL011_MIS_PEMIS = (1 shl 8);`	Parity error masked interrupt status
`BCM2837_PL011_MIS_FEMIS = (1 shl 7);`	Framing error masked interrupt status
`BCM2837_PL011_MIS_RTMIS = (1 shl 6);`	Receive timeout masked interrupt status
`BCM2837_PL011_MIS_TXMIS = (1 shl 5);`	Transmit masked interrupt status
`BCM2837_PL011_MIS_RXMIS = (1 shl 4);`	Receive masked interrupt status
`BCM2837_PL011_MIS_DSRMMIS = (1 shl 3);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_MIS_DCDMMIS = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_MIS_CTSMMIS = (1 shl 1);`	nUARTCTS modem masked interrupt status
`BCM2837_PL011_MIS_RIMMIS = (1 shl 0);`	Unsupported, write zero, read as don't care.

BCM2837 PL011 UART interrupt clear BCM2837_PL011_ICR_*

See Section 13.4

`BCM2837_PL011_ICR_OEIC = (1 shl 10);`	Overrun error interrupt clear
`BCM2837_PL011_ICR_BEIC = (1 shl 9);`	Break error interrupt clear
`BCM2837_PL011_ICR_PEIC = (1 shl 8);`	Parity error interrupt clear
`BCM2837_PL011_ICR_FEIC = (1 shl 7);`	Framing error interrupt clear
`BCM2837_PL011_ICR_RTIC = (1 shl 6);`	Receive timeout interrupt clear
`BCM2837_PL011_ICR_TXIC = (1 shl 5);`	Transmit interrupt clear
`BCM2837_PL011_ICR_RXIC = (1 shl 4);`	Receive interrupt clear
`BCM2837_PL011_ICR_DSRMIC = (1 shl 3);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_ICR_DCDMIC = (1 shl 2);`	Unsupported, write zero, read as don't care.
`BCM2837_PL011_ICR_CTSMIC = (1 shl 1);`	nUARTCTS modem interrupt clear
`BCM2837_PL011_ICR_RIMIC = (1 shl 0);`	Unsupported, write zero, read as don't care.

BCM2837 PL011 UART DMA Control

See Section 13.4

This register is disabled, writing to it has no effect and reading returns 0

BCM2837 ARM interrupt controller registers BCM2837_ARM_INTERRUPT_*

See Section 7.5

`BCM2837_ARM_INTERRUPT_BASIC_PENDING = $00000000;`	IRQ basic pending
`BCM2837_ARM_INTERRUPT_IRQ_PENDING1 = $00000004;`	IRQ pending 1
`BCM2837_ARM_INTERRUPT_IRQ_PENDING2 = $00000008;`	IRQ pending 2
`BCM2837_ARM_INTERRUPT_FIQ_CONTROL = $0000000C;`	FIQ control
`BCM2837_ARM_INTERRUPT_IRQ_ENABLE1 = $00000010;`	Enable IRQs 1
`BCM2837_ARM_INTERRUPT_IRQ_ENABLE2 = $00000014;`	Enable IRQs 2
`BCM2837_ARM_INTERRUPT_BASIC_ENABLE = $00000018;`	Enable Basic IRQs
`BCM2837_ARM_INTERRUPT_IRQ_DISABLE1 = $0000001C;`	Disable IRQs 1
`BCM2837_ARM_INTERRUPT_IRQ_DISABLE2 = $00000020;`	Disable IRQs 2
`BCM2837_ARM_INTERRUPT_BASIC_DISABLE = $00000024;`	Disable Basic IRQs

BCM2837 ARM interrupt controller register bits BCM2837_ARM_INTERRUPT_FIQ_*

See Section 7.5

`BCM2837_ARM_INTERRUPT_FIQ_ENABLE = (1 shl 7);`	FIQ enable (Set this bit to 1 to enable FIQ generation. If set to 0 bits 6:0 are don't care.)
`BCM2837_ARM_INTERRUPT_FIQ_SOURCE = ($7F shl 0);`	Select FIQ Source (0..127)

BCM2837 ARM timer BCM2837_ARM_TIMER_CONTROL_*

See Section 14.2

`BCM2837_ARM_TIMER_CONTROL_COUNTER_PRESCALE = ($FF shl 16);`	Free running counter pre-scaler (Freq is sys_clk/(prescale+1))
`BCM2837_ARM_TIMER_CONTROL_COUNTER_ENABLED = (1 shl 9);`	0 : Free running counter Disabled/1 : Free running counter Enabled
`BCM2837_ARM_TIMER_CONTROL_DEBUG_HALT = (1 shl 8);`	0 : Timers keeps running if ARM is in debug halted mode/1 : Timers halted if ARM is in debug halted mode
`BCM2837_ARM_TIMER_CONTROL_TIMER_ENABLED = (1 shl 7);`	0 : Timer disabled/1 : Timer enabled
`BCM2837_ARM_TIMER_CONTROL_INT_ENABLED = (1 shl 5);`	0 : Timer interrupt disabled/1 : Timer interrupt enabled
`BCM2837_ARM_TIMER_CONTROL_PRESCALE = (3 shl 2);`	Pre-scale bits: 00 : pre-scale is clock/1 (No pre-scale)/01 : pre-scale is clock/16/10 : pre-scale is clock/256/11 : pre-scale is clock/1
`BCM2837_ARM_TIMER_CONTROL_32BIT = (1 shl 1);`	0 : 16-bit counters/1 : 32-bit counter
`BCM2837_ARM_TIMER_CONTROL_ONESHOT = (1 shl 0);`	0 = wrapping mode (default)/1 = one-shot mode (Not supported by BCM2837)

`BCM2837_ARM_TIMER_RAW_IRQ_PENDING = (1 shl 0);`	0 : The interrupt pending bits is clear/1 : The interrupt pending bit is set

`BCM2837_ARM_TIMER_MASKED_IRQ_PENDING = (1 shl 0);`	0 : Interrupt line not asserted/1 :Interrupt line is asserted, (the interrupt pending and the interrupt enable bit are set)

`BCM2837_ARM_TIMER_PREDIVIDER_MASK = ($3FF shl 0);`	Pre-divider value (timer_clock = apb_clock/(pre_divider+1))

BCM2837 power management, reset controller and watchdog BCM2837_PM_*

`BCM2837_PM_PASSWORD = $5A000000;`

`BCM2837_PM_RSTC_WRCFG_CLR = $FFFFFFCF;`
`BCM2837_PM_RSTC_WRCFG_SET = $00000030;`
`BCM2837_PM_RSTC_WRCFG_FULL_RESET = $00000020;`
`BCM2837_PM_RSTC_RESET = $00000102;`

`BCM2837_PM_RSTS_HADPOR_SET = $00001000;`
`BCM2837_PM_RSTS_HADSRH_SET = $00000400;`
`BCM2837_PM_RSTS_HADSRF_SET = $00000200;`
`BCM2837_PM_RSTS_HADSRQ_SET = $00000100;`
`BCM2837_PM_RSTS_HADWRH_SET = $00000040;`
`BCM2837_PM_RSTS_HADWRF_SET = $00000020;`
`BCM2837_PM_RSTS_HADWRQ_SET = $00000010;`
`BCM2837_PM_RSTS_HADDRH_SET = $00000004;`
`BCM2837_PM_RSTS_HADDRF_SET = $00000002;`
`BCM2837_PM_RSTS_HADDRQ_SET = $00000001;`

`BCM2837_PM_RSTS_RASPBERRYPI_HALT = $00000555;`	Special value to tell the Raspberry Pi firmware not to reboot, sets Boot Partition to 63 (0x3f).

`BCM2837_PM_WDOG_RESET = $00000000;`
`BCM2837_PM_WDOG_TIME_MASK = $000FFFFF;`

`BCM2837_PM_WDOG_TICKS_PER_SECOND = (1 shl 16);`
`BCM2837_PM_WDOG_TICKS_PER_MILLISECOND = (BCM2837_PM_WDOG_TICKS_PER_SECOND div 1000);`

BCM2837 random number generator BCM2837_RANDOM_*

`BCM2837_RANDOM_DISABLE = $00000000;`	Disable Random Number Generator
`BCM2837_RANDOM_ENABLE = $00000001;`	Enable Random Number Generator
`BCM2837_RANDOM_DOUBLE_SPEED = $00000002;`	Double Speed Mode (Less Random)

BCM2837 clock management BCM2837_CM_*

See Section 6

`BCM2837_CM_PASSWORD = $5A000000;`

BCM2837 clock manager control BCM2837_CM_CTL_*

See Section 6.3

`BCM2837_CM_CTL_MASH_0 = (0 shl 9);`	MASH control - 0 = integer division
`BCM2837_CM_CTL_MASH_1 = (1 shl 9);`	MASH control - 1 = 1-stage MASH (equivalent to non-MASH dividers)
`BCM2837_CM_CTL_MASH_2 = (2 shl 9);`	MASH control - 2 = 2-stage MASH
`BCM2837_CM_CTL_MASH_3 = (3 shl 9);`	MASH control - 3 = 3-stage MASH (To avoid lock-ups and glitches do not change this control while BUSY=1 and do not change this control at the same time as asserting ENAB)
`BCM2837_CM_CTL_FLIP = (1 shl 8);`	MASH control - Invert the clock generator output (To avoid output glitches do not switch this control while BUSY=1)
`BCM2837_CM_CTL_BUSY = (1 shl 7);`	Clock generator is running (To avoid glitches and lock-ups, clock sources and setups must not be changed while this flag is set)
`BCM2837_CM_CTL_GATE = (1 shl 6);`	Unused
`BCM2837_CM_CTL_KILL = (1 shl 5);`	Kill the clock generator (0 = no action/1 = stop and reset the clock generator) (This is intended for test/debug only)
`BCM2837_CM_CTL_ENAB = (1 shl 4);`	Enable the clock generator

`BCM2837_CM_CTL_SRC_GND = (0 shl 0);`	Clock source - 0 Hz GND
`BCM2837_CM_CTL_SRC_OSC = (1 shl 0);`	Clock source - 19.2 MHz Oscillator
`BCM2837_CM_CTL_SRC_TESTDEBUG0 = (2 shl 0);`	Clock source - 0 Hz Testdebug0
`BCM2837_CM_CTL_SRC_TESTDEBUG1 = (3 shl 0);`	Clock source - 0 Hz Testdebug1
`BCM2837_CM_CTL_SRC_PLLA = (4 shl 0);`	Clock source - 0 Hz PLLA
`BCM2837_CM_CTL_SRC_PLLC = (5 shl 0);`	Clock source - 1000 MHz PLLC (changes with overclock settings)
`BCM2837_CM_CTL_SRC_PLLD = (6 shl 0);`	Clock source - 500 MHz PLLD
`BCM2837_CM_CTL_SRC_HDMI = (7 shl 0);`	Clock source - 216 MHz HDMI auxiliary

BCM2837 clock manager divisor BCM2837_CM_DIV_*

See Section 6.3

`BCM2837_CM_DIV_INT_MASK = $00FFF000;`	Integer part of divisor (This value has a minimum limit determined by the MASH setting) (To avoid lock-ups and glitches do not change this control while BUSY=1)
`BCM2837_CM_DIV_FRAC_MASK = $00000FFF;`	Fractional part of divisor (To avoid lock-ups and glitches do not change this control while BUSY=1)

BCM2837 clock manager BCM2837_CM_*

`BCM2837_CM_GNRICCTL = $00000000;`	Generic Clock Control
`BCM2837_CM_GNRICDIV = $00000004;`	Generic Clock Divisor
`BCM2837_CM_VPUCTL = $00000008;`	VPU Clock Control
`BCM2837_CM_VPUDIV = $0000000C;`	VPU Clock Divisor
`BCM2837_CM_SYSCTL = $00000010;`	System Clock Control
`BCM2837_CM_SYSDIV = $00000014;`	System Clock Divisor
`BCM2837_CM_PERIACTL = $00000018;`	PERIA Clock Control
`BCM2837_CM_PERIADIV = $0000001C;`	PERIA Clock Divisor
`BCM2837_CM_PERIICTL = $00000020;`	PERII Clock Control
`BCM2837_CM_PERIIDIV = $00000024;`	PERII Clock Divisor
`BCM2837_CM_H264CTL = $00000028;`	H264 Clock Control
`BCM2837_CM_H264DIV = $0000002C;`	H264 Clock Divisor
`BCM2837_CM_ISPCTL = $00000030;`	ISP Clock Control
`BCM2837_CM_ISPDIV = $00000034;`	ISP Clock Divisor
`BCM2837_CM_V3DCTL = $00000038;`	V3D Clock Control
`BCM2837_CM_V3DDIV = $0000003C;`	V3D Clock Divisor
`BCM2837_CM_CAM0CTL = $00000040;`	Camera 0 Clock Control
`BCM2837_CM_CAM0DIV = $00000044;`	Camera 0 Clock Divisor
`BCM2837_CM_CAM1CTL = $00000048;`	Camera 1 Clock Control
`BCM2837_CM_CAM1DIV = $0000004C;`	Camera 1 Clock Divisor
`BCM2837_CM_CCP2CTL = $00000050;`	CCP2 Clock Control
`BCM2837_CM_CCP2DIV = $00000054;`	CCP2 Clock Divisor
`BCM2837_CM_DSI0ECTL = $00000058;`	DSI0E Clock Control
`BCM2837_CM_DSI0EDIV = $0000005C;`	DSI0E Clock Divisor
`BCM2837_CM_DSI0PCTL = $00000060;`	DSI0P Clock Control
`BCM2837_CM_DSI0PDIV = $00000064;`	DSI0P Clock Divisor
`BCM2837_CM_DPICTL = $00000068;`	DPI Clock Control
`BCM2837_CM_DPIDIV = $0000006C;`	DPI Clock Divisor
`BCM2837_CM_GP0CTL = $00000070;`	General Purpose 0 Clock Control
`BCM2837_CM_GP0DIV = $00000074;`	General Purpose 0 Clock Divisor
`BCM2837_CM_GP1CTL = $00000078;`	General Purpose 1 Clock Control
`BCM2837_CM_GP1DIV = $0000007C;`	General Purpose 1 Clock Divisor
`BCM2837_CM_GP2CTL = $00000080;`	General Purpose 2 Clock Control
`BCM2837_CM_GP2DIV = $00000084;`	General Purpose 2 Clock Divisor
`BCM2837_CM_HSMCTL = $00000088;`	HSM Clock Control
`BCM2837_CM_HSMDIV = $0000008C;`	HSM Clock Divisor
`BCM2837_CM_OTPCTL = $00000090;`	OTP Clock Control
`BCM2837_CM_OTPDIV = $00000094;`	OTP Clock Divisor
`BCM2837_CM_PCMCTL = $00000098;`	PCM/I2S Clock Control
`BCM2837_CM_PCMDIV = $0000009C;`	PCM/I2S Clock Divisor
`BCM2837_CM_PWMCTL = $000000A0;`	PWM Clock Control
`BCM2837_CM_PWMDIV = $000000A4;`	PWM Clock Divisor
`BCM2837_CM_SLIMCTL = $000000A8;`	SLIM Clock Control
`BCM2837_CM_SLIMDIV = $000000AC;`	SLIM Clock Divisor
`BCM2837_CM_SMICTL = $000000B0;`	SMI Clock Control
`BCM2837_CM_SMIDIV = $000000B4;`	SMI Clock Divisor
`BCM2837_CM_TCNTCTL = $000000C0;`	TCNT Clock Control
`BCM2837_CM_TCNTDIV = $000000C4;`	TCNT Clock Divisor
`BCM2837_CM_TECCTL = $000000C8;`	TEC Clock Control
`BCM2837_CM_TECDIV = $000000CC;`	TEC Clock Divisor
`BCM2837_CM_TD0CTL = $000000D0;`	TD0 Clock Control
`BCM2837_CM_TD0DIV = $000000D4;`	TD0 Clock Divisor
`BCM2837_CM_TD1CTL = $000000D8;`	TD1 Clock Control
`BCM2837_CM_TD1DIV = $000000DC;`	TD1 Clock Divisor
`BCM2837_CM_TSENSCTL = $000000E0;`	TSENS Clock Control
`BCM2837_CM_TSENSDIV = $000000E4;`	TSENS Clock Divisor
`BCM2837_CM_TIMERCTL = $000000E8;`	Timer Clock Control
`BCM2837_CM_TIMERDIV = $000000EC;`	Timer Clock Divisor
`BCM2837_CM_UARTCTL = $000000F0;`	UART Clock Control
`BCM2837_CM_UARTDIV = $000000F4;`	UART Clock Divisor
`BCM2837_CM_VECCTL = $000000F8;`	VEC Clock Control
`BCM2837_CM_VECDIV = $000000FC;`	VEC Clock Divisor

`BCM2837_CM_OSCCOUNT = $00000100;`	Oscillator Count
`BCM2837_CM_PLLA = $00000104;`	PLLA
`BCM2837_CM_PLLC = $00000108;`	PLLC
`BCM2837_CM_PLLD = $0000010C;`	PLLD
`BCM2837_CM_PLLH = $00000110;`	PLLH
`BCM2837_CM_LOCK = $00000114;`	Lock
`BCM2837_CM_EVENT = $00000118;`	Event
`BCM2837_CM_INTEN = $00000118;`	INTEN
`BCM2837_CM_DSI0HSCK = $00000120;`	DSI0HSCK
`BCM2837_CM_CKSM = $00000124;`	CKSM
`BCM2837_CM_OSCFREQI = $00000128;`	Oscillator Frequency Integer
`BCM2837_CM_OSCFREQF = $0000012C;`	Oscillator Frequency Fraction
`BCM2837_CM_PLLTCTL = $00000130;`	PLLT Control
`BCM2837_CM_PLLTCNT0 = $00000134;`	PLLT0 Count
`BCM2837_CM_PLLTCNT1 = $00000138;`	PLLT1 Count
`BCM2837_CM_PLLTCNT2 = $0000013C;`	PLLT2 Count
`BCM2837_CM_PLLTCNT3 = $00000140;`	PLLT3 Count
`BCM2837_CM_TDCLKEN = $00000144;`	TD Clock Enable
`BCM2837_CM_BURSTCTL = $00000148;`	Burst Control
`BCM2837_CM_BURSTCNT = $0000014C;`	Burst Count
`BCM2837_CM_DSI1ECTL = $00000158;`	DSI1E Clock Control
`BCM2837_CM_DSI1EDIV = $0000015C;`	DSI1E Clock Divisor
`BCM2837_CM_DSI1PCTL = $00000160;`	DSI1P Clock Control
`BCM2837_CM_DSI1PDIV = $00000164;`	DSI1P Clock Divisor
`BCM2837_CM_DFTCTL = $00000168;`	DFT Clock Control
`BCM2837_CM_DFTDIV $0000016C;`	DFT Clock Divisor
`BCM2837_CM_PLLB = $00000170;`	PLLB

`BCM2837_CM_PULSECTL = $00000190;`	Pulse Clock Control
`BCM2837_CM_PULSEDIV = $00000194;`	Pulse Clock Divisor
`BCM2837_CM_SDCCTL = $000001A8;`	SDC Clock Control
`BCM2837_CM_SDCDIV = $000001AC;`	SDC Clock Divisor
`BCM2837_CM_ARMCTL = $000001B0;`	ARM Clock Control
`BCM2837_CM_ARMDIV = $000001B4;`	ARM Clock Divisor
`BCM2837_CM_AVEOCTL = $000001B8;`	AVEO Clock Control
`BCM2837_CM_AVEODIV = $000001BC;`	AVEO Clock Divisor
`BCM2837_CM_EMMCCTL = $000001C0;`	EMMC Clock Control
`BCM2837_CM_EMMCDIV = $000001C4;`	EMMC Clock Divisor

BCM2837 mailbox BCM2837_MAILBOX_*

`BCM2837_MAILBOX_0 = 0;`
`BCM2837_MAILBOX_1 = 1;`

BCM2837 mailbox 0 channel BCM2837_MAILBOX0_CHANNEL_*

See https://github.com/raspberrypi/firmware/wiki/Mailboxes

`BCM2837_MAILBOX0_CHANNEL_POWER_MGMT = 0;`
`BCM2837_MAILBOX0_CHANNEL_FRAMEBUFFER = 1;`
`BCM2837_MAILBOX0_CHANNEL_UART = 2;`
`BCM2837_MAILBOX0_CHANNEL_VCHIQ = 3;`
`BCM2837_MAILBOX0_CHANNEL_LEDS = 4;`
`BCM2837_MAILBOX0_CHANNEL_BUTTONS = 5;`
`BCM2837_MAILBOX0_CHANNEL_TOUCHSCREEN = 6;`
`BCM2837_MAILBOX0_CHANNEL_UNKNOWN = 7;`
`BCM2837_MAILBOX0_CHANNEL_PROPERTYTAGS_ARMVC = 8;`
`BCM2837_MAILBOX0_CHANNEL_PROPERTYTAGS_VCARM = 9;`

BCM2837 mailbox 1 channel BCM2837_MAILBOX_*_MASK

See https://github.com/raspberrypi/firmware/wiki/Mailboxes
Currently unknown

The BCM2837 mailboxes pass 28-bit messages (The low 4 bits of the 32-bit value are used to specify the channel)
`BCM2837_MAILBOX_CHANNEL_MASK = $0000000F;`
`BCM2837_MAILBOX_DATA_MASK = $FFFFFFF0;`

BCM2837 mailbox status flag BCM2837_MAILBOX_STATUS_*

`BCM2837_MAILBOX_STATUS_FULL = $80000000;`
`BCM2837_MAILBOX_STATUS_EMPTY = $40000000;`

BCM2837 mailbox configuration flag BCM2837_MAILBOX_CONFIG_*

`BCM2837_MAILBOX_CONFIG_IRQENABLE = $00000001;`

BCM2837 mailbox property tag BCM2837_MBOX_TAG_GET_*

See https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface or \include\soc\bcm2835\raspberrypi-firmware.h

VideoCore
`BCM2837_MBOX_TAG_GET_FIRMWARE_REV = $00000001;`
Hardware
`BCM2837_MBOX_TAG_GET_BOARD_MODEL = $00010001;`
`BCM2837_MBOX_TAG_GET_BOARD_REV = $00010002;`

`BCM2837_MBOX_TAG_GET_MAC_ADDRESS = $00010003;`

`BCM2837_MBOX_TAG_GET_BOARD_SERIAL = $00010004;`

`BCM2837_MBOX_TAG_GET_ARM_MEMORY = $00010005;`
`BCM2837_MBOX_TAG_GET_VC_MEMORY = $00010006;`

`BCM2837_MBOX_TAG_GET_CLOCKS = $00010007;`
Shared Resource Management
`BCM2837_MBOX_TAG_GET_POWER_STATE = $00020001;`	Response indicates current state
`BCM2837_MBOX_TAG_GET_TIMING = $00020002;`	Response indicates wait time required after turning a device on before power is stable
`BCM2837_MBOX_TAG_SET_POWER_STATE = $00028001;`	Response indicates new state, with/without waiting for the power to become stable.

`BCM2837_MBOX_TAG_GET_CLOCK_STATE = $00030001;`
`BCM2837_MBOX_TAG_SET_CLOCK_STATE = $00038001;`

`BCM2837_MBOX_TAG_GET_CLOCK_RATE = $00030002;`
`BCM2837_MBOX_TAG_SET_CLOCK_RATE = $00038002;`

`BCM2837_MBOX_TAG_GET_CLOCK_MAX_RATE = $00030004;`	Return the maximum supported clock rate for the given clock. Clocks should not be set higher than this.
`BCM2837_MBOX_TAG_GET_CLOCK_MIN_RATE = $00030007;`	Return the minimum supported clock rate for the given clock. This may be used when idle.

`BCM2837_MBOX_TAG_GET_TURBO = $00030009;`	Get the turbo state for index Id. Id should be 0. level will be zero for non-turbo and one for turbo.
`BCM2837_MBOX_TAG_SET_TURBO = $00038009;`	Set the turbo state for index Id. Id should be zero. level will be zero for non-turbo and one for turbo. This will cause GPU clocks to be set to maximum when enabled and minimum when disabled.

`BCM2837_MBOX_TAG_GET_STC = $0003000b;`
Voltage
`BCM2837_MBOX_TAG_GET_VOLTAGE = $00030003;`	The voltage value may be clamped to the supported range. A value of 0x80000000 means the Id was not valid.
`BCM2837_MBOX_TAG_SET_VOLTAGE = $00038003;`	The voltage value may be clamped to the supported range. A value of 0x80000000 means the Id was not valid.

`BCM2837_MBOX_TAG_GET_MAX_VOLTAGE = $00030005;`	Return the maximum supported voltage rate for the given Id. Voltages should not be set higher than this.
`BCM2837_MBOX_TAG_GET_MIN_VOLTAGE = $00030008;`	Return the minimum supported voltage rate for the given Id. This may be used when idle.

`BCM2837_MBOX_TAG_GET_TEMP = $00030006;`	Return the temperature of the SoC in thousandths of a degree C. Id should be zero.
`BCM2837_MBOX_TAG_GET_MAX_TEMP = $0003000a;`	Return the maximum safe temperature of the SoC in thousandths of a degree C. Id should be zero. Overclock may be disabled above this temperature.
GPU
`BCM2837_MBOX_TAG_ALLOCATE_MEMORY = $0003000c;`	Allocates contiguous memory on the GPU. Size and alignment are in bytes.
`BCM2837_MBOX_TAG_LOCK_MEMORY = $0003000d;`	Lock buffer in place, and return a bus address. Must be done before memory can be accessed.
`BCM2837_MBOX_TAG_UNLOCK_MEMORY = $0003000e;`	Unlock buffer. It retains contents, but may move. Needs to be locked before next use. status=0 is success.
`BCM2837_MBOX_TAG_RELEASE_MEMORY = $0003000f;`	Free the memory buffer. status=0 is success.

`BCM2837_MBOX_TAG_EXECUTE_CODE = $00030010;`	Calls the function at given (bus) address and with arguments given. E.g. r0 = fn(r0, r1, r2, r3, r4, r5); It blocks until call completes.
`BCM2837_MBOX_TAG_EXECUTE_QPU = $00030011;`	Execute an assembled block of code using one or more Quad Processing Units (QPUs)
`BCM2837_MBOX_TAG_ENABLE_QPU = $00030012;`	Enable the Quad Processing Units (QPUs)

`BCM2837_MBOX_TAG_GET_DISPMANX_HANDLE = $00030014;`	Gets the mem_handle associated with a created dispmanx resource. This can be locked and the memory directly written from the arm to avoid having to copy the image data to GPU.
`BCM2837_MBOX_TAG_GET_EDID_BLOCK = $00030020;`	This reads the specified EDID block from attached HDMI/DVI device. There will always be at least one block of 128 bytes, but there may be additional blocks. You should keep requesting blocks (starting from 0) until the status returned is non-zero.

`BCM2837_MBOX_TAG_GET_CUSTOMER_OTP = $00030021;`
`BCM2837_MBOX_TAG_SET_CUSTOMER_OTP = $00038021;`

`BCM2837_MBOX_TAG_GET_DOMAIN_STATE = $00030030;`
`BCM2837_MBOX_TAG_SET_DOMAIN_STATE = $00038030;`

`BCM2837_MBOX_TAG_GET_GPIO_STATE = $00030041;`	Get the current state of a GPIO expander pin
`BCM2837_MBOX_TAG_SET_GPIO_STATE = $00038041;`	Set the current state of a GPIO expander pin

`BCM2837_MBOX_TAG_SET_SDHOST_CLOCK = $00038042;`	Tell the firmware the SD Host clock setting so it will be adjusted for changes in core frequency

`BCM2837_MBOX_TAG_GET_GPIO_CONFIG = $00030043;`	Get the current configuration of a GPIO expander pin
`BCM2837_MBOX_TAG_SET_GPIO_CONFIG = $00038043;`	Set the current configuration of a GPIO expander pin

`BCM2837_MBOX_TAG_GET_THROTTLED = $00030046;`

`BCM2837_MBOX_TAG_GET_CLOCK_MEASURED = $00030047;`

`BCM2837_MBOX_TAG_GET_PERIPH_REG = $00030045;`
`BCM2837_MBOX_TAG_SET_PERIPH_REG = $00038045;`

`BCM2837_MBOX_TAG_GET_POE_HAT_VAL = $00030049;`
`BCM2837_MBOX_TAG_SET_POE_HAT_VAL = $00038049;`

`BCM2837_MBOX_TAG_NOTIFY_REBOOT = $00030048;`
`BCM2837_MBOX_TAG_NOTIFY_XHCI_RESET = $00030058;`

`BCM2837_MBOX_TAG_GET_BOOT_MODE = $0003005b;`	Get the boot mode that was used by the firmware to load the kernel (1 = SD, 4 = MSD etc)

`BCM2837_MBOX_TAG_GET_REBOOT_FLAGS = $00030064;`
`BCM2837_MBOX_TAG_SET_REBOOT_FLAGS = $00038064;`

`BCM2837_MBOX_TAG_NOTIFY_DISPLAY_DONE = $00030066;`
Frame Buffer
`BCM2837_MBOX_TAG_ALLOCATE_BUFFER = $00040001;`	If the requested alignment is unsupported then the current base and size (which may be 0 if not allocated) is returned and no change occurs
`BCM2837_MBOX_TAG_RELEASE_BUFFER = $00048001;`	Releases and disables the frame buffer

`BCM2837_MBOX_TAG_SET_BLANK_SCREEN = $00040002;`
`BCM2837_MBOX_TAG_TEST_BLANK_SCREEN = $00044002;`	Previously BCM2837_MBOX_TAG_TST_BLANK_SCREEN

`BCM2837_MBOX_TAG_GET_PHYSICAL_W_H= $00040003;`	Note that the "physical (display)" size is the size of the allocated buffer in memory, not the resolution of the video signal sent to the display device.
`BCM2837_MBOX_TAG_TEST_PHYSICAL_W_H = $00044003;`
`BCM2837_MBOX_TAG_SET_PHYSICAL_W_H = $00048003;`

`BCM2837_MBOX_TAG_GET_VIRTUAL_W_H = $00040004;`	Note that the "virtual (buffer)" size is the portion of buffer that is sent to the display device, not the resolution the buffer itself. This may be smaller than the allocated buffer size in order to implement panning.
`BCM2837_MBOX_TAG_TEST_VIRTUAL_W_H = $00044004;`
`BCM2837_MBOX_TAG_SET_VIRTUAL_W_H = $00048004;`

`BCM2837_MBOX_TAG_GET_DEPTH = $00040005;`
`BCM2837_MBOX_TAG_TEST_DEPTH = $00044005;`
`BCM2837_MBOX_TAG_SET_DEPTH = $00048005;`

`BCM2837_MBOX_TAG_GET_PIXEL_ORDER = $00040006;`
`BCM2837_MBOX_TAG_TEST_PIXEL_ORDER = $00044006;`
`BCM2837_MBOX_TAG_SET_PIXEL_ORDER = $00048006;`

`BCM2837_MBOX_TAG_GET_ALPHA_MODE = $00040007;`
`BCM2837_MBOX_TAG_TEST_ALPHA_MODE = $00044007;`
`BCM2837_MBOX_TAG_SET_ALPHA_MODE = $00048007;`

`BCM2837_MBOX_TAG_GET_PITCH = $00040008;`
`BCM2837_MBOX_TAG_TEST_PITCH;`	Previously BCM2837_MBOX_TAG_TST_PITCH
`BCM2837_MBOX_TAG_SET_PITCH = $00048008;`

`BCM2837_MBOX_TAG_GET_VIRTUAL_OFFSET = $00040009;`	Offset of physical display window within virtual buffer
`BCM2837_MBOX_TAG_TEST_VIRTUAL_OFFSET = $00044009;`
`BCM2837_MBOX_TAG_SET_VIRTUAL_OFFSET = $00048009;`

`BCM2837_MBOX_TAG_GET_OVERSCAN = $0004000a;`
`BCM2837_MBOX_TAG_TEST_OVERSCAN = $0004400a;`
`BCM2837_MBOX_TAG_SET_OVERSCAN = $0004800a;`

`BCM2837_MBOX_TAG_GET_PALETTE = $0004000b;`
`BCM2837_MBOX_TAG_TEST_PALETTE = $0004400b;`
`BCM2837_MBOX_TAG_SET_PALETTE = $0004800b;`

`BCM2837_MBOX_TAG_GET_LAYER = $0004000c;`
`BCM2837_MBOX_TAG_TEST_LAYER = $0004400c;`	Previously BCM2837_MBOX_TAG_TST_LAYER
`BCM2837_MBOX_TAG_SET_LAYER = $0004800c;`

`BCM2837_MBOX_TAG_GET_TRANSFORM = $0004000d;`
`BCM2837_MBOX_TAG_TEST_TRANSFORM = $0004400d;`	Previously BCM2837_MBOX_TAG_TST_TRANSFORM
`BCM2837_MBOX_TAG_SET_TRANSFORM = $0004800d;`

`BCM2837_MBOX_TAG_TEST_VSYNC = $0004400e;`	Previously BCM2837_MBOX_TAG_TST_VSYNC
`BCM2837_MBOX_TAG_SET_VSYNC = $0004800e;`

`BCM2837_MBOX_TAG_SET_BACKLIGHT = $0004800f;`

`BCM2837_MBOX_TAG_GET_TOUCHBUF = $0004000f;`
`BCM2837_MBOX_TAG_SET_TOUCHBUF = $0004801f;`

`BCM2837_MBOX_TAG_GET_GPIOVIRTBUF = $00040010;`
`BCM2837_MBOX_TAG_SET_GPIOVIRTBUF = $00048020;`

`BCM2837_MBOX_TAG_GET_DISPLAY_ID = $00040016;`
`BCM2837_MBOX_TAG_SET_DISPLAY_NUM = $00048013;`
`BCM2837_MBOX_TAG_GET_NUM_DISPLAYS = $00040013;`
`BCM2837_MBOX_TAG_GET_DISPLAY_SETTINGS = $00040014;`

`BCM2837_MBOX_TAG_SET_PLANE = $00048015`
`BCM2837_MBOX_TAG_GET_DISPLAY_TIMING = $00040017;`
`BCM2837_MBOX_TAG_SET_TIMING = $00048017;`
`BCM2837_MBOX_TAG_GET_DISPLAY_CFG = $00040018;`
`BCM2837_MBOX_TAG_SET_DISPLAY_POWER = $00048019;`

`BCM2837_MBOX_TAG_SET_CURSOR_INFO = $00008010;`	00008011 These were reversed in the documentation, see Linux \include\soc\bcm2835\raspberrypi-firmware.h
`BCM2837_MBOX_TAG_SET_CURSOR_STATE = $00008011;`	00008010
VCHIQ
`BCM2837_MBOX_TAG_VCHIQ_INIT = $00048010;`
Config
`BCM2837_MBOX_TAG_GET_COMMAND_LINE = $00050001;`
Shared Resource Management
`BCM2837_MBOX_TAG_GET_DMA_CHANNELS = $00060001;`	Caller assumes that the VC has enabled all the usable DMA channels
End
`BCM2837_MBOX_TAG_END = $00000000;`

BCM2837 mailbox board revision value BCM2837_BOARD_REV_*

See: http://elinux.org/RPi_HardwareHistory

`BCM2837_BOARD_REV_2B_1 = $00A01041;`
`BCM2837_BOARD_REV_2B_2 = $00A21041;`
`BCM2837_BOARD_REV_2B_3 = $00A22042;`

`BCM2837_BOARD_REV_3B_1 = $00A02082;`
`BCM2837_BOARD_REV_3B_2 = $00A22082;`
`BCM2837_BOARD_REV_3B_3 = $00A32082;`

`BCM2837_BOARD_REV_CM3_1 = $00A020A0;`
`BCM2837_BOARD_REV_CM3_2 = $00A220A0;`

`BCM2837_BOARD_REV_MASK = $00FFFFFF;`	Mask off the warranty bit

BCM2837 mailbox board revision BCM2837_BOARD_REVISION_*

See: https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md

`BCM2837_BOARD_REVISION_PCB_MASK = ($F shl 0);`	PCB Revision Number

`BCM2837_BOARD_REVISION_MODEL_MASK = ($FF shl 4);`	Model Number
`BCM2837_BOARD_REVISION_MODEL_A = (0 shl 4);`	Model A (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_B = (1 shl 4);`	Model B (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_APLUS = (2 shl 4);`	Model A+ (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_BPLUS = (3 shl 4);`	Model B+ (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_2B = (4 shl 4);`	Model 2B
`BCM2837_BOARD_REVISION_MODEL_ALPHA = (5 shl 4);`	Unknown
`BCM2837_BOARD_REVISION_MODEL_COMPUTE = (6 shl 4);`	Compute Module (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_UNKNOWN = (7 shl 4);`	Unknown
`BCM2837_BOARD_REVISION_MODEL_3B = (8 shl 4);`	Model 3B
`BCM2837_BOARD_REVISION_MODEL_ZERO = (9 shl 4);`	Model Zero (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_COMPUTE3 = (10 shl 4);`	Compute Module 3
`BCM2837_BOARD_REVISION_MODEL_UNKNOWN_2 = (11 shl 4);`	Unknown
`BCM2837_BOARD_REVISION_MODEL_ZERO_W = (12 shl 4);`	Model Zero W (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_3BPLUS = (13 shl 4);`	Model 3B+
`BCM2837_BOARD_REVISION_MODEL_3APLUS = (14 shl 4);`	Model 3A+
`BCM2837_BOARD_REVISION_MODEL_COMPUTE3PLUS = (16 shl 4);`	Compute Module 3+
`BCM2837_BOARD_REVISION_MODEL_4B = (17 shl 4);`	Model 4B (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_ZERO2_W = (18 shl 4);`	Model Zero 2 W
`BCM2837_BOARD_REVISION_MODEL_400 = (19 shl 4);`	Pi 400 (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_CM4 = (20 shl 4);`	Compute Module 4 (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_MODEL_CM4S = (21 shl 4);`	Compute Module 4S (Cannot occur on BCM2837)

`BCM2837_BOARD_REVISION_PROCESSOR_MASK = ($F shl 12);`	Processor Type
`BCM2837_BOARD_REVISION_PROCESSOR_BCM2835 = (0 shl 12);`	BCM2835 (Cannot occur on BCM2837)
`BCM2837_BOARD_REVISION_PROCESSOR_BCM2836 = (1 shl 12);`	BCM2836
`BCM2837_BOARD_REVISION_PROCESSOR_BCM2837 = (2 shl 12);`	BCM2837
`BCM2837_BOARD_REVISION_PROCESSOR_BCM2838 = (3 shl 12);`	BCM2838 (Cannot occur on BCM2837)

`BCM2837_BOARD_REVISION_MANUFACTURER_MASK = ($F shl 16);`	Manufacturer
`BCM2837_BOARD_REVISION_MANUFACTURER_SONY = (0 shl 16);`	Sony
`BCM2837_BOARD_REVISION_MANUFACTURER_EGOMAN = (1 shl 16);`	Egoman
`BCM2837_BOARD_REVISION_MANUFACTURER_EMBEST = (2 shl 16);`	Embest
`BCM2837_BOARD_REVISION_MANUFACTURER_SONY_JAPAN = (3 shl 16);`	Sony (Japan)
`BCM2837_BOARD_REVISION_MANUFACTURER_EMBEST2 = (4 shl 16);`	Embest
`BCM2837_BOARD_REVISION_MANUFACTURER_STADIUM = (5 shl 16);`	Stadium

`BCM2837_BOARD_REVISION_MEMORY_MASK = ($7 shl 20);`	Memory Size
`BCM2837_BOARD_REVISION_MEMORY_256M = (0 shl 20);`	256M
`BCM2837_BOARD_REVISION_MEMORY_512M = (1 shl 20);`	512M
`BCM2837_BOARD_REVISION_MEMORY_1024M = (2 shl 20);`	1024M
`BCM2837_BOARD_REVISION_MEMORY_2048M = (3 shl 20);`	2048M
`BCM2837_BOARD_REVISION_MEMORY_4096M = (4 shl 20);`	4096M
`BCM2837_BOARD_REVISION_MEMORY_8192M = (5 shl 20);`	8192M

`BCM2837_BOARD_REVISION_ENCODED_FLAG = (1 shl 23);`	Encoded Flag, if set then revision uses this encoding

`BCM2837_BOARD_REVISION_MASK = $00FFFFFF;`	Mask off the warranty bits

BCM2837 mailbox power state device BCM2837_MBOX_POWER_DEVID_*

`BCM2837_MBOX_POWER_DEVID_SDHCI = 0;`
`BCM2837_MBOX_POWER_DEVID_UART0 = 1;`
`BCM2837_MBOX_POWER_DEVID_UART1 = 2;`
`BCM2837_MBOX_POWER_DEVID_USB_HCD = 3;`
`BCM2837_MBOX_POWER_DEVID_I2C0 = 4;`
`BCM2837_MBOX_POWER_DEVID_I2C1 = 5;`
`BCM2837_MBOX_POWER_DEVID_I2C2 = 6;`
`BCM2837_MBOX_POWER_DEVID_SPI = 7;`
`BCM2837_MBOX_POWER_DEVID_CCP2TX = 8;`

`BCM2837_MBOX_POWER_DEVID_UNKNOWN = $FFFFFFFF;`

BCM2837 mailbox power state request BCM2837_MBOX_SET_POWER_STATE_REQ_*

`BCM2837_MBOX_SET_POWER_STATE_REQ_OFF = (0 shl 0);`
`BCM2837_MBOX_SET_POWER_STATE_REQ_ON = (1 shl 0);`
`BCM2837_MBOX_SET_POWER_STATE_REQ_WAIT = (1 shl 1);`

BCM2837 mailbox power state response BCM2837_MBOX_POWER_STATE_RESP_*

`BCM2837_MBOX_POWER_STATE_RESP_OFF = (0 shl 0);`
`BCM2837_MBOX_POWER_STATE_RESP_ON = (1 shl 0);`
`BCM2837_MBOX_POWER_STATE_RESP_NODEV = (1 shl 1);`	Device doesn't exist

BCM2837 mailbox clock state/rate Id BCM2837_MBOX_CLOCK_ID_*

`BCM2837_MBOX_CLOCK_ID_RESERVED = 0;`
`BCM2837_MBOX_CLOCK_ID_EMMC = 1;`
`BCM2837_MBOX_CLOCK_ID_UART = 2;`
`BCM2837_MBOX_CLOCK_ID_ARM = 3;`
`BCM2837_MBOX_CLOCK_ID_CORE = 4;`
`BCM2837_MBOX_CLOCK_ID_V3D = 5;`
`BCM2837_MBOX_CLOCK_ID_H264 = 6;`
`BCM2837_MBOX_CLOCK_ID_ISP = 7;`
`BCM2837_MBOX_CLOCK_ID_SDRAM = 8;`
`BCM2837_MBOX_CLOCK_ID_PIXEL = 9;`
`BCM2837_MBOX_CLOCK_ID_PWM = 10;`

`BCM2837_MBOX_CLOCK_ID_UNKNOWN = $FFFFFFFF;`

BCM2837 mailbox clock state BCM2837_MBOX_SET_CLOCK_STATE_REQ_*

`BCM2837_MBOX_SET_CLOCK_STATE_REQ_OFF = (0 shl 0);`
`BCM2837_MBOX_SET_CLOCK_STATE_REQ_ON = (1 shl 0);`
`BCM2837_MBOX_SET_CLOCK_STATE_REQ_NOCLOCK = (1 shl 1);`	Clock doesn't exist

BCM2837 mailbox clock state response BCM2837_MBOX_CLOCK_STATE_RESP_*

`BCM2837_MBOX_CLOCK_STATE_RESP_OFF = (0 shl 0);`
`BCM2837_MBOX_CLOCK_STATE_RESP_ON = (1 shl 0);`
`BCM2837_MBOX_CLOCK_STATE_RESP_NOCLOCK= (1 shl 1);`	Clock doesn't exist

BCM2837 mailbox clock rate turbo BCM2837_MBOX_CLOCK_RATE_*

`BCM2837_MBOX_CLOCK_RATE_REQ_SKIP_TURBO = (1 shl 0);`

BCM2837 mailbox voltage Id BCM2837_MBOX_VOLTAGE_ID_*

`BCM2837_MBOX_VOLTAGE_ID_RESERVED = $00000000;`
`BCM2837_MBOX_VOLTAGE_ID_CORE = $00000001;`
`BCM2837_MBOX_VOLTAGE_ID_SDRAM_C = $00000002;`
`BCM2837_MBOX_VOLTAGE_ID_SDRAM_P = $00000003;`
`BCM2837_MBOX_VOLTAGE_ID_SDRAM_I = $00000004;`

BCM2837 mailbox voltage BCM2837_MBOX_VOLTAGE_*

`BCM2837_MBOX_VOLTAGE_INVALID = $80000000;`	A value of 0x80000000 means the Id was not valid

BCM2837 mailbox temperature Id BCM2837_MBOX_TEMP_ID_*

`BCM2837_MBOX_TEMP_ID_SOC = 0;`

BCM2837 mailbox display Id BCM2837_MBOX_DISPLAY_ID_*

Note: These are compatible with the DISPMANX_ID_* values

`BCM2837_MBOX_DISPLAY_ID_MAIN_LCD = 0;`
`BCM2837_MBOX_DISPLAY_ID_AUX_LCD = 1;`
`BCM2837_MBOX_DISPLAY_ID_HDMI0 = 2;`
`BCM2837_MBOX_DISPLAY_ID_SDTV = 3;`
`BCM2837_MBOX_DISPLAY_ID_FORCE_LCD = 4;`
`BCM2837_MBOX_DISPLAY_ID_FORCE_TV = 5;`
`BCM2837_MBOX_DISPLAY_ID_FORCE_OTHER = 6;`	Non-default display
`BCM2837_MBOX_DISPLAY_ID_HDMI1 = 7;`	Not applicable on BCM2837
`BCM2837_MBOX_DISPLAY_ID_FORCE_TV2 = 8;`	Not applicable on BCM2837

BCM2837 mailbox memory flag BCM2837_MBOX_MEM_FLAG_*

`BCM2837_MBOX_MEM_FLAG_DISCARDABLE = (1 shl 0);`	Can be resized to 0 at any time. Use for cached data.
`BCM2837_MBOX_MEM_FLAG_NORMAL = (0 shl 2);`	Normal allocating alias. Don't use from ARM.
`BCM2837_MBOX_MEM_FLAG_DIRECT = (1 shl 2);`	0xC alias uncached
`BCM2837_MBOX_MEM_FLAG_COHERENT = (2 shl 2);`	0x8 alias. Non-allocating in L2 but coherent.
`BCM2837_MBOX_MEM_FLAG_L1_NONALLOCATING = (BCM2837_MBOX_MEM_FLAG_DIRECT or BCM2837_MBOX_MEM_FLAG_COHERENT);`	Allocating in L2
`BCM2837_MBOX_MEM_FLAG_ZERO = (1 shl 4);`	Initialise buffer to all zeros
`BCM2837_MBOX_MEM_FLAG_NO_INIT = (1 shl 5);`	Don't initialise (default is initialise to all ones)
`BCM2837_MBOX_MEM_FLAG_HINT_PERMALOCK = (1 shl 6);`	Likely to be locked for long periods of time

BCM2837 mailbox blank screen BCM2837_MBOX_BLANK_SCREEN_*

`BCM2837_MBOX_BLANK_SCREEN_REQ_ON = (1 shl 0);`

BCM2837 mailbox pixel order BCM2837_MBOX_PIXEL_ORDER_*

`BCM2837_MBOX_PIXEL_ORDER_BGR = 0;`
`BCM2837_MBOX_PIXEL_ORDER_RGB = 1;`

BCM2837 mailbox alpha mode BCM2837_MBOX_ALPHA_MODE_*

`BCM2837_MBOX_ALPHA_MODE_0_OPAQUE = 0;`
`BCM2837_MBOX_ALPHA_MODE_0_TRANSPARENT = 1;`
`BCM2837_MBOX_ALPHA_MODE_IGNORED = 2;`

BCM2837 mailbox palette BCM2837_MBOX_PALETTE_*

`BCM2837_MBOX_PALETTE_INVALID = $00000001;`

BCM2837 mailbox cursor state BCM2837_MBOX_CURSOR_*

`BCM2837_MBOX_CURSOR_INVISIBLE = 0;`
`BCM2837_MBOX_CURSOR_VISIBLE = 1;`

BCM2837 mailbox cursor state flag BCM2837_MBOX_CURSOR_STATE_*

`BCM2837_MBOX_CURSOR_STATE_DISPLAY_COORDS = (0 shl 0);`
`BCM2837_MBOX_CURSOR_STATE_FRAMEBUFFER_COORDS = (1 shl 0);`

BCM2837 mailbox cursor BCM2837_MBOX_CURSOR_*

`BCM2837_MBOX_CURSOR_INVALID = $00000001;`

BCM2837 mailbox request BCM2837_MBOX_REQUEST_*

`BCM2837_MBOX_REQUEST_CODE = $00000000;`
`BCM2837_MBOX_RESPONSE_CODE_SUCCESS = $80000000;`
`BCM2837_MBOX_RESPONSE_CODE_ERROR = $80000001;`

BCM2837 mailbox tag request BCM2837_MBOX_TAG_REQUEST_*

`BCM2837_MBOX_TAG_REQUEST_CODE = $00000000;`
`BCM2837_MBOX_TAG_RESPONSE_CODE = $80000000;`

BCM2837 GPIO BCM2837_GPIO_*

`BCM2837_GPIO_PIN_COUNT = 54;`
`BCM2837_GPIO_BANK_COUNT = 2;`

`BCM2837_GPIO_SIGNATURE = $6770696F;`	The ASCII value 'GPIO' returned when reading from a write only register

BCM2837 virtual GPIO BCM2837_VIRTUAL_GPIO_*

`BCM2837_VIRTUAL_GPIO_PIN_COUNT = 2;`	Raspberry Pi 3B only

BCM2837 function select register BCM2837_GP*

`BCM2837_GPFSEL0 = $00000000;`	GPIO Function Select 0
`BCM2837_GPFSEL1 = $00000004;`	GPIO Function Select 1
`BCM2837_GPFSEL2 = $00000008;`	GPIO Function Select 2
`BCM2837_GPFSEL3 = $0000000C;`	GPIO Function Select 3
`BCM2837_GPFSEL4 = $00000010;`	GPIO Function Select 4
`BCM2837_GPFSEL5 = $00000014;`	GPIO Function Select 5

Pin Output Set Registers
`BCM2837_GPSET0 = $0000001C;`	GPIO Pin Output Set 0
`BCM2837_GPSET1 = $00000020;`	GPIO Pin Output Set 1

Pin Output Clear Registers
`BCM2837_GPCLR0 = $00000028;`	GPIO Pin Output Clear 0
`BCM2837_GPCLR1 = $0000002C;`	GPIO Pin Output Clear 1

Pin Level Registers
`BCM2837_GPLEV0 = $00000034;`	GPIO Pin Level 0
`BCM2837_GPLEV1 = $00000038;`	GPIO Pin Level 1

Pin Event Detect Status Registers
`BCM2837_GPEDS0 = $00000040;`	GPIO Pin Event Detect Status 0
`BCM2837_GPEDS1 = $00000044;`	GPIO Pin Event Detect Status 1

Pin Rising Edge Detect Enable Registers
`BCM2837_GPREN0 = $0000004c;`	GPIO Pin Rising Edge Detect Enable 0
`BCM2837_GPREN1 = $00000050;`	GPIO Pin Rising Edge Detect Enable 1

Pin Falling Edge Detect Enable Registers
`BCM2837_GPFEN0 = $00000058;`	GPIO Pin Falling Edge Detect Enable 0
`BCM2837_GPFEN1 = $0000005c;`	GPIO Pin Falling Edge Detect Enable 1

Pin High Detect Enable Registers
`BCM2837_GPHEN0 = $00000064;`	GPIO Pin High Detect Enable 0
`BCM2837_GPHEN1 = $00000068;`	GPIO Pin High Detect Enable 1

Pin Low Detect Enable Registers
`BCM2837_GPLEN0 = $00000070;`	GPIO Pin Low Detect Enable 0
`BCM2837_GPLEN1 = $00000074;`	GPIO Pin Low Detect Enable

Pin Async. Rising Edge Detect Registers
`BCM2837_GPAREN0 = $0000007c;`	GPIO Pin Async. Rising Edge Detect 0
`BCM2837_GPAREN1 = $00000080;`	GPIO Pin Async. Rising Edge Detect 1

Pin Async. Falling Edge Detect Registers
`BCM2837_GPAFEN0 = $00000088;`	GPIO Pin Async. Falling Edge Detect 0
`BCM2837_GPAFEN1 = $0000008c;`	GPIO Pin Async. Falling Edge Detect 1

Pin Pull-up/down Enable Registers
`BCM2837_GPPUD = $00000094;`	GPIO Pin Pull-up/down Enable

Pin Pull-up/down Enable Clock Registers
`BCM2837_GPPUDCLK0 = $00000098;`	GPIO Pin Pull-up/down Enable Clock 0
`BCM2837_GPPUDCLK1 = $0000009C;`	GPIO Pin Pull-up/down Enable Clock 1

Function Select Mask
`BCM2837_GPFSEL_MASK = 7;`

Function Select Values
`BCM2837_GPFSEL_IN = 0;`
`BCM2837_GPFSEL_OUT = 1;`
`BCM2837_GPFSEL_ALT0 = 4;`
`BCM2837_GPFSEL_ALT1 = 5;`
`BCM2837_GPFSEL_ALT2 = 6;`
`BCM2837_GPFSEL_ALT3 = 7;`
`BCM2837_GPFSEL_ALT4 = 3;`
`BCM2837_GPFSEL_ALT5 = 2;`

Pin Output Set Mask
`BCM2837_GPSET_MASK = 1;`

Pin Output Clear Mask
`BCM2837_GPCLR_MASK = 1;`

Pin Level Mask
`BCM2837_GPLEV_MASK = 1;`

Pin Event Detect Status Mask
`BCM2837_GPEDS_MASK = 1;`

Pin Rising Edge Detect Enable Mask
`BCM2837_GPREN_MASK = 1;`

Pin Falling Edge Detect Enable Mask
`BCM2837_GPFEN_MASK = 1;`

Pin High Detect Enable Mask
`BCM2837_GPHEN_MASK = 1;`

Pin Low Detect Enable Mask
`BCM2837_GPLEN_MASK = 1;`

Pin Async. Rising Edge Detect Mask
`BCM2837_GPAREN_MASK = 1;`

Pin Async. Falling Edge Detect Mask
`BCM2837_GPAFEN_MASK = 1;`

Pull-up/down Enable Mask
`BCM2837_GPPUD_MASK = 3;`

Pull-up/down Enable Values
`BCM2837_GPPUD_NONE = 0;`
`BCM2837_GPPUD_DOWN = 1;`
`BCM2837_GPPUD_UP = 2;`

Pin Pull-up/down Enable Clock Mask
`BCM2837_GPPUDCLK_MASK = 1;`

BCM2837 ARM local BCM2837_ARM_LOCAL_*

See: QA7 Rev3.4.pdf

`BCM2837_ARM_LOCAL_BASE = $40000000;`
`BCM2837_ARM_LOCAL_SIZE = SIZE_256K;`

BCM2837 ARM local peripheral BCM2837_ARM_LOCAL_REGS_*

See: QA7 Rev3.4.pdf

`BCM2837_ARM_LOCAL_REGS_BASE = (BCM2837_ARM_LOCAL_BASE + $0000);`

BCM2837 IRQ local ARM peripheral BCM2837_IRQ_LOCAL_ARM_*

See: QA7 Rev3.4.pdf
IRQs 96 to 127 appear in the IRQPending register

ARM Generic Timers
`BCM2837_IRQ_LOCAL_ARM_CNTPSIRQ = 96;`	ARM Local IRQ 0
`BCM2837_IRQ_LOCAL_ARM_CNTPNSIRQ = 97;`	ARM Local IRQ 1
`BCM2837_IRQ_LOCAL_ARM_CNTHPIRQ = 98;`	ARM Local IRQ 2
`BCM2837_IRQ_LOCAL_ARM_CNTVIRQ = 99;`	ARM Local IRQ 3
ARM Malboxes0-3
`BCM2837_IRQ_LOCAL_ARM_MAILBOX0 = 100;`	ARM Local IRQ 4
`BCM2837_IRQ_LOCAL_ARM_MAILBOX1 = 101;`	ARM Local IRQ 5
`BCM2837_IRQ_LOCAL_ARM_MAILBOX2 = 102;`	ARM Local IRQ 6
`BCM2837_IRQ_LOCAL_ARM_MAILBOX3 = 103;`	ARM Local IRQ 7
GPU Int Routing
`BCM2837_IRQ_LOCAL_ARM_GPU = 104;`	ARM Local IRQ 8
ARM Performance Monitoring
`BCM2837_IRQ_LOCAL_ARM_PMU = 105;`	ARM Local IRQ 9
AXI Outstanding
`BCM2837_IRQ_LOCAL_ARM_AXI = 106;`	ARM Local IRQ 10
ARM Local Timer
`BCM2837_IRQ_LOCAL_ARM_TIMER= 107;`	ARM Local IRQ 11
ARM Local Peripherals 1-15 (Not Used)
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL1 = 108;`	ARM Local IRQ 12
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL2 = 109;`	ARM Local IRQ 13
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL3 = 110;`	ARM Local IRQ 14
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL4 = 111;`	ARM Local IRQ 15
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL5 = 112;`	ARM Local IRQ 16
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL6 = 113;`	ARM Local IRQ 17
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL7 = 114;`	ARM Local IRQ 18
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL8 = 115;`	ARM Local IRQ 19
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL9 = 116;`	ARM Local IRQ 20
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL10 = 117;`	ARM Local IRQ 21
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL11 = 118;`	ARM Local IRQ 22
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL12 = 119;`	ARM Local IRQ 23
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL13 = 120;`	ARM Local IRQ 24
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL14 = 121;`	ARM Local IRQ 25
`BCM2837_IRQ_LOCAL_ARM_PERIPHERAL15 = 122;`	ARM Local IRQ 26

IRQs 123 to 127 (ARM Local IRQs 27 to 31) are not assigned

BCM2837 ARM local control BCM2837_ARM_LOCAL_CONTROL_*

See Section 4.2

`BCM2837_ARM_LOCAL_CONTROL_APB_CLOCK = (1 shl 8);`	64-bit Core timer runs from the APB clock
`BCM2837_ARM_LOCAL_CONTROL_CRYSTAL_CLOCK = (0 shl 8);`	64-bit Core timer runs from the Crystal clock
`BCM2837_ARM_LOCAL_CONTROL_INCREMENT_2 = (1 shl 9);`	64-bit Core timer increments by 2
`BCM2837_ARM_LOCAL_CONTROL_INCREMENT_1 = (0 shl 9);`	64-bit Core timer increments by 1

BCM2837 ARM local GPU interrupt routing BCM2837_ARM_LOCAL_GPU_INT_ROUTING_*

See Section 4.4

`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_IRQ0 = (0 shl 0);`	GPU IRQ goes to IRQ input of core 0
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_IRQ1 = (1 shl 0);`	GPU IRQ goes to IRQ input of core 1
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_IRQ2 = (2 shl 0);`	GPU IRQ goes to IRQ input of core 2
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_IRQ3 = (3 shl 0);`	GPU IRQ goes to IRQ input of core 3
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_FIQ0 = (0 shl 2);`	GPU FIQ goes to FIQ input of core 0
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_FIQ1 = (1 shl 2);`	GPU FIQ goes to FIQ input of core 1
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_FIQ2 = (2 shl 2);`	GPU FIQ goes to FIQ input of core 2
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_FIQ3 = (3 shl 2);`	GPU FIQ goes to FIQ input of core 3

`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_IRQ_MASK = (3 shl 0);`
`BCM2837_ARM_LOCAL_GPU_INT_ROUTING_FIQ_MASK = (3 shl 2);`

BCM2837 ARM local PM interrupt routing set/clear BCM2837_ARM_LOCAL_PM_INT_ROUTING_*

See Section 4.5

`BCM2837_ARM_LOCAL_PM_INT_ROUTING_IRQ0 = (1 shl 0);`	Core 0 PM IRQ Enable (This bit is only valid if bit 4 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_IRQ1 = (1 shl 1);`	Core 1 PM IRQ Enable (This bit is only valid if bit 5 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_IRQ2 = (1 shl 2);`	Core 2 PM IRQ Enable (This bit is only valid if bit 6 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_IRQ3 = (1 shl 3);`	Core 3 PM IRQ Enable (This bit is only valid if bit 7 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_FIQ0 = (1 shl 4);`	Core 0 PM FIQ Enable (If set, this bit overrides the IRQ bit 0)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_FIQ1 = (1 shl 5);`	Core 1 PM FIQ Enable (If set, this bit overrides the IRQ bit 1)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_FIQ2 = (1 shl 6);`	Core 2 PM FIQ Enable (If set, this bit overrides the IRQ bit 2)
`BCM2837_ARM_LOCAL_PM_INT_ROUTING_FIQ3 = (1 shl 7);`	Core 3 PM FIQ Enable (If set, this bit overrides the IRQ bit 3)

BCM2837 ARM local interrupt routing0 (0-7) BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_*

See Section 4.11

`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_IRQ0 = (0 shl 0);`	Local timer interrupt goes to Core 0 IRQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_IRQ1 = (1 shl 0);`	Local timer interrupt goes to Core 1 IRQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_IRQ2 = (2 shl 0);`	Local timer interrupt goes to Core 2 IRQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_IRQ3 = (3 shl 0);`	Local timer interrupt goes to Core 3 IRQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_FIQ0 = (4 shl 0);`	Local timer interrupt goes to Core 0 FIQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_FIQ1 = (5 shl 0);`	Local timer interrupt goes to Core 1 FIQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_FIQ2 = (6 shl 0);`	Local timer interrupt goes to Core 2 FIQ
`BCM2837_ARM_LOCAL_INT_ROUTING0_TIMER_FIQ3 = (7 shl 0);`	Local timer interrupt goes to Core 3 FIQ

BCM2837 ARM local AXI outstanding count BCM2837_ARM_LOCAL_AXI_COUNT_*

See Section 4.9

`BCM2837_ARM_LOCAL_AXI_COUNT_READ_MASK = ($3FF shl 0);`	Outstanding reads counter
`BCM2837_ARM_LOCAL_AXI_COUNT_WRITE_MASK = ($3FF shl 16);`	Outstanding writes counter

BCM2837 ARM local AXI outstanding IRQ BCM2837_ARM_LOCAL_AXI_IRQ_*

See Section 4.9
Core 0 Only

`BCM2837_ARM_LOCAL_AXI_IRQ_ENABLE = (1 shl 20);`
`BCM2837_ARM_LOCAL_AXI_IRQ_TIMEOUT = ($FFFFF shl 0);`

BCM2837 ARM local timer control BCM2837_ARM_LOCAL_TIMER_CONTROL_*

See Section 4.11

`BCM2837_ARM_LOCAL_TIMER_CONTROL_INT_STATUS = (1 shl 31);`	Interrupt flag (Read Only)
`BCM2837_ARM_LOCAL_TIMER_CONTROL_INT_ENABLE = (1 shl 29);`	Interrupt enable (1= enabled)
`BCM2837_ARM_LOCAL_TIMER_CONTROL_ENABLE = (1 shl 28);`	Timer enable (1 = enabled)
`BCM2837_ARM_LOCAL_TIMER_CONTROL_VALUE_MASK = ($0FFFFFFF shl 0);`	Re-load value

BCM2837 ARM local timer clear reload BCM2837_ARM_LOCAL_TIMER_CLEAR_*

See Section 4.11
Write Only

`BCM2837_ARM_LOCAL_TIMER_CLEAR_INT = (1 shl 31);`	Interrupt flag clear when written as 1 (Write Only)
`BCM2837_ARM_LOCAL_TIMER_CLEAR_RELOAD = (1 shl 30);`	Local timer reloaded when written as 1 (Write Only)

BCM2837 ARM local timer interrupt control BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_*

See Section 4.6
Note: These are the ARM Generic Timers (See ARM Architecture Reference Manual)

`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTPSIRQ = (1 shl 0);`	Physical Secure Timer IRQ Enable (This bit is only valid if bit 4 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTPNSIRQ = (1 shl 1);`	Physical Non Secure Timer IRQ Enable (This bit is only valid if bit 5 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTHPIRQ = (1 shl 2);`	Hypervisor Timer IRQ Enable (This bit is only valid if bit 6 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTVIRQ = (1 shl 3);`	Virtual Timer IRQ Enable (This bit is only valid if bit 7 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTPSFIQ = (1 shl 4);`	Physical Secure Timer FIQ Enable (If set, this bit overrides the IRQ bit 0)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTPNSFIQ = (1 shl 5);`	Physical Non Secure Timer FIQ Enable (If set, this bit overrides the IRQ bit 1)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTHPFIQ = (1 shl 6);`	Hypervisor Timer FIQ Enable (If set, this bit overrides the IRQ bit 2)
`BCM2837_ARM_LOCAL_TIMER_INT_CONTROL_CNTVFIQ = (1 shl 7);`	Virtual Timer FIQ Enable (If set, this bit overrides the IRQ bit 3)

BCM2837 ARM local mailbox interrupt control BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_*

See Section 4.7

`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX0IRQ = (1 shl 0);`	Mailbox-0 IRQ Enable (This bit is only valid if bit 4 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX1IRQ = (1 shl 1);`	Mailbox-1 IRQ Enable (This bit is only valid if bit 5 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX2IRQ = (1 shl 2);`	Mailbox-2 IRQ Enable (This bit is only valid if bit 6 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX3IRQ = (1 shl 3);`	Mailbox-3 IRQ Enable (This bit is only valid if bit 7 is clear otherwise it is ignored)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX0FIQ = (1 shl 0);`	Mailbox-0 FIQ Enable (If set, this bit overrides the IRQ bit 0)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX1FIQ = (1 shl 0);`	Mailbox-1 FIQ Enable (If set, this bit overrides the IRQ bit 1)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX2FIQ = (1 shl 0);`	Mailbox-2 FIQ Enable (If set, this bit overrides the IRQ bit 2)
`BCM2837_ARM_LOCAL_MAILBOX_INT_CONTROL_MAILBOX3FIQ = (1 shl 0);`	Mailbox-3 FIQ Enable (If set, this bit overrides the IRQ bit 3)

BCM2837 ARM local IRQ pending BCM2837_ARM_LOCAL_IRQ_PENDING_*

See Section 4.10

`BCM2837_ARM_LOCAL_IRQ_PENDING_CNTPSIRQ = (1 shl 0);`	Physical Secure Timer Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_CNTPNSIRQ = (1 shl 1);`	Physical Non Secure Timer Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_CNTHPIRQ = (1 shl 2);`	Hypervisor Timer Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_CNTVIRQ = (1 shl 3);`	Virtual Timer Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_MAILBOX0 = (1 shl 4);`	Mailbox 0 Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_MAILBOX1 = (1 shl 5);`	Mailbox 1 Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_MAILBOX2 = (1 shl 6);`	Mailbox 2 Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_MAILBOX3 = (1 shl 7);`	Mailbox 3 Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_GPU = (1 shl 8);`	GPU Routed Interrupt (Can only be assigned to one core)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PMU = (1 shl 9);`	Performance Monitor Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_AXI = (1 shl 10);`	AXI Outstanding Interrupt (Core 0 Only)
`BCM2837_ARM_LOCAL_IRQ_PENDING_TIMER = (1 shl 11);`	Local Timer Interrupt
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL1 = (1 shl 12);`	Local Peripheral 1 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL2 = (1 shl 13);`	Local Peripheral 2 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL3 = (1 shl 14);`	Local Peripheral 3 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL4 = (1 shl 15);`	Local Peripheral 4 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL5 = (1 shl 16);`	Local Peripheral 5 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL6 = (1 shl 17);`	Local Peripheral 6 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL7 = (1 shl 18);`	Local Peripheral 7 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL8 = (1 shl 19);`	Local Peripheral 8 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL9 = (1 shl 20);`	Local Peripheral 9 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL10 = (1 shl 21);`	Local Peripheral 10 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL11 = (1 shl 22);`	Local Peripheral 11 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL12 = (1 shl 23);`	Local Peripheral 12 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL13 = (1 shl 24);`	Local Peripheral 13 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL14 = (1 shl 25);`	Local Peripheral 14 Interrupt (Not Used)
`BCM2837_ARM_LOCAL_IRQ_PENDING_PERIPHERAL15 = (1 shl 26);`	Local Peripheral 15 Interrupt (Not Used)

BCM2837 ARM local FIQ pending BCM2837_ARM_LOCAL_FIQ_PENDING_*

See Section 4.10

`BCM2837_ARM_LOCAL_FIQ_PENDING_CNTPSIRQ = (1 shl 0);`	Physical Secure Timer Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_CNTPNSIRQ = (1 shl 1);`	Physical Non Secure Timer Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_CNTHPIRQ = (1 shl 2);`	Hypervisor Timer Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_CNTVIRQ = (1 shl 3);`	Virtual Timer Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_MAILBOX0 = (1 shl 4);`	Mailbox 0 Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_MAILBOX1 = (1 shl 5);`	Mailbox 1 Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_MAILBOX2 = (1 shl 6);`	Mailbox 2 Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_MAILBOX3 = (1 shl 7);`	Mailbox 3 Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_GPU = (1 shl 8);`	GPU Routed Fast Interrupt (Can only be assigned to one core)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PMU = (1 shl 9);`	Performance Monitor Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_TIMER = (1 shl 11);`	Local Timer Fast Interrupt
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL1 = (1 shl 12);`	Local Peripheral 1 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL2 = (1 shl 13);`	Local Peripheral 2 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL3 = (1 shl 14);`	Local Peripheral 3 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL4 = (1 shl 15);`	Local Peripheral 4 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL5 = (1 shl 16);`	Local Peripheral 5 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL6 = (1 shl 17);`	Local Peripheral 6 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL7 = (1 shl 18);`	Local Peripheral 7 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL8 = (1 shl 19);`	Local Peripheral 8 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL9 = (1 shl 20);`	Local Peripheral 9 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL10 = (1 shl 21);`	Local Peripheral 10 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL11 = (1 shl 22);`	Local Peripheral 11 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL12 = (1 shl 23);`	Local Peripheral 12 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL13 = (1 shl 24);`	Local Peripheral 13 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL14 = (1 shl 25);`	Local Peripheral 14 Fast Interrupt (Not Used)
`BCM2837_ARM_LOCAL_FIQ_PENDING_PERIPHERAL15 = (1 shl 26);`	Local Peripheral 15 Fast Interrupt (Not Used)

Type definitions

BCM2837 interrupt controller registers

PBCM2837InterruptRegisters = ^TBCM2837InterruptRegisters;

TBCM2837InterruptRegisters = record

Note: Layout of the BCM2837 Interrupt Controller registers (See 7.5)
`IRQ_basic_pending:LongWord;`
`IRQ_pending_1:LongWord;`
`IRQ_pending_2:LongWord;`
`FIQ_control:LongWord;`
`Enable_IRQs_1:LongWord;`
`Enable_IRQs_2:LongWord;`
`Enable_Basic_IRQs:LongWord;`
`Disable_IRQs_1:LongWord;`
`Disable_IRQs_2:LongWord;`
`Disable_Basic_IRQs:LongWord;`

BCM2837 system timer registers

PBCM2837SystemTimerRegisters = ^TBCM2837SystemTimerRegisters;

TBCM2837SystemTimerRegisters = record

Note: Layout of the BCM2837 System Timer registers (See 12.1)
`CS:LongWord;`	System Timer Control/Status
`CLO:LongWord;`	System Timer Counter Lower 32 bits
`CHI:LongWord;`	System Timer Counter Higher 32 bits
`C0:LongWord;`	System Timer Compare 0. Already used by the VideoCore GPU (Do not use)
`C1:LongWord;`	System Timer Compare 1
`C2:LongWord;`	System Timer Compare 2. Already used by the VideoCore GPU (Do not use)
`C3:LongWord;`	System Timer Compare 3

BCM2837 DMA channel registers

PBCM2837DMARegisters = ^TBCM2837DMARegisters;

TBCM2837DMARegisters = record

Note: Layout of the BCM2837 DMA Channel registers (See 4.2.1.2)
`CS:LongWord;`	DMA Channel Control and Status
`CONBLK_AD:LongWord;`	DMA Channel Control Block Address
`TI:LongWord;`	DMA Channel CB Word 0 (Transfer Information)
`SOURCE_AD:LongWord;`	DMA Channel CB Word 1 (Source Address)
`DEST_AD:LongWord;`	DMA Channel CB Word 2 (Destination Address)
`TXFR_LEN:LongWord;`	DMA Channel CB Word 3 (Transfer Length)
`STRIDE:LongWord;`	DMA Channel CB Word 4 (2D Stride)
`NEXTCONBK:LongWord;`	DMA Channel CB Word 5 (Next CB Address)
`DEBUG:LongWord;`	DMA Channel Debug

BCM2837 DMA control block structure

PBCM2837DMAControlBlock = ^TBCM2837DMAControlBlock;

TBCM2837DMAControlBlock = record

Note: Layout of BCM2837 DMA Control Block structure (See 4.2.1.1) Must be 32byte (256bit) aligned
`TransferInformation:LongWord;`
`SourceAddress:LongWord;`
`DestinationAddress:LongWord;`
`TransferLength:LongWord;`
`ModeStride:LongWord;`
`NextControlBlockAddress:LongWord;`
`Reserved1:LongWord;`
`Reserved2:LongWord;`

BCM2837 BSC (I2C) registers

PBCM2837BSCRegisters = ^TBCM2837BSCRegisters;

TBCM2837BSCRegisters = record

Note: Layout of the BCM2837 BSC (I2C) registers (See 3.2)
`C:LongWord;`	Control
`S:LongWord;`	Status
`DLEN:LongWord;`	Data Length
`A:LongWord;`	Slave Address
`FIFO:LongWord;`	Data FIFO
`CDIV:LongWord;`	Clock Divider
`DEL:LongWord;`	Data Delay
`CLKT:LongWord;`	Clock Stretch Timeout

BCM2837 SPI0 registers

PBCM2837SPI0Registers = ^TBCM2837SPI0Registers;

TBCM2837SPI0Registers = record

Note: Layout of the BCM2837 SPI0 registers (See 10.5)
`CS:LongWord;`	SPI Master Control and Status
`FIFO:LongWord;`	SPI Master TX and RX FIFOs
`CLK:LongWord;`	SPI Master Clock Divider
`DLEN:LongWord;`	SPI Master Data Length
`LTOH:LongWord;`	SPI LOSSI mode TOH
`DC:LongWord;`	SPI DMA DREQ Controls

BCM2837 I2C/SPI slave registers

PBCM2837I2CSPIRegisters = ^TBCM2837I2CSPIRegisters;

TBCM2837I2CSPIRegisters = record

Note: Layout of the BCM2837 I2C/SPI Slave registers (See 11.2)
`DR:LongWord;`	Data Register
`RSR:LongWord;`	Operation status register and error clear register
`SLV:LongWord;`	I2C SPI Address Register holds the I2C slave address value
`CR:LongWord;`	Control register is used to configure the I2C or SPI operation
`FR:LongWord;`	Flag register
`IFLS:LongWord;`	Interrupt fifo level select register
`IMSC:LongWord;`	Interrupt Mask Set Clear Register
`RIS:LongWord;`	Raw Interrupt Status Register
`MIS:LongWord;`	Masked Interrupt Status Register
`ICR:LongWord;`	Interrupt Clear Register
`DMACR:LongWord;`	DMA Control Register
`TDR:LongWord;`	FIFO Test Data Register
`GPUSTAT:LongWord;`	GPU Status Register
`HCTRL:LongWord;`	Host Control Register
`DEBUG1:LongWord;`	I2C Debug Register
`DEBUG2:LongWord;`	SPI Debug Register

BCM2837 AUX (UART1, SPI1 and SPI2) registers

PBCM2837AUXRegisters = ^TBCM2837AUXRegisters;

TBCM2837AUXRegisters = record

Note: Layout of the BCM2837 AUX (UART1, SPI1 and SPI2) registers (See 2.1)
`AUX_IRQ:LongWord;`	Auxiliary Interrupt status
`AUX_ENABLE:LongWord;`	Auxiliary enables
`Reserved01:LongWord;`
`Reserved02:LongWord;`
`Reserved03:LongWord;`
`Reserved04:LongWord;`
`Reserved05:LongWord;`
`Reserved06:LongWord;`
`Reserved07:LongWord;`
`Reserved08:LongWord;`
`Reserved09:LongWord;`
`Reserved0A:LongWord;`
`Reserved0B:LongWord;`
`Reserved0C:LongWord;`
`Reserved0D:LongWord;`
`Reserved0E:LongWord;`
`AUX_MU_IO:LongWord;`	Mini Uart I/O Data
`AUX_MU_IER:LongWord;`	Mini Uart Interrupt Enable
`AUX_MU_IIR:LongWord;`	Mini Uart Interrupt Identify
`AUX_MU_LCR:LongWord;`	Mini Uart Line Control
`AUX_MU_MCR:LongWord;`	Mini Uart Modem Control
`AUX_MU_LSR:LongWord;`	Mini Uart Line Status
`AUX_MU_MSR:LongWord;`	Mini Uart Modem Status
`AUX_MU_SCRATCH:LongWord;`	Mini Uart Scratch
`AUX_MU_CNTL:LongWord;`	Mini Uart Extra Control
`AUX_MU_STAT:LongWord;`	Mini Uart Extra Status
`AUX_MU_BAUD:LongWord;`	Mini Uart Baudrate
`Reserved11:LongWord;`
`Reserved12:LongWord;`
`Reserved13:LongWord;`
`Reserved14:LongWord;`
`Reserved15:LongWord;`
`AUX_SPI1_CNTL0:LongWord;`	SPI 1 Control register 0
`AUX_SPI1_CNTL1:LongWord;`	SPI 1 Control register 1
`AUX_SPI1_STAT:LongWord;`	SPI 1 Status
`Reserved21:LongWord;`
`AUX_SPI1_IO:LongWord;`	SPI 1 Data
`AUX_SPI1_PEEK:LongWord;`	SPI 1 Peek
`Reserved31:LongWord;`
`Reserved32:LongWord;`
`Reserved33:LongWord;`
`Reserved34:LongWord;`
`Reserved35:LongWord;`
`Reserved36:LongWord;`
`Reserved37:LongWord;`
`Reserved38:LongWord;`
`Reserved39:LongWord;`
`Reserved3A:LongWord;`
`AUX_SPI2_CNTL0:LongWord;`	SPI 2 Control register 0
`AUX_SPI2_CNTL1:LongWord;`	SPI 2 Control register 1
`AUX_SPI2_STAT:LongWord;`	SPI 2 Status
`Reserved40:LongWord;`
`AUX_SPI2_IO:LongWord;`	SPI 2 Data
`AUX_SPI2_PEEK:LongWord;`	SPI 2 Peek

BCM2837 PCM/I2S registers

PBCM2837PCMRegisters = ^TBCM2837PCMRegisters;

TBCM2837PCMRegisters = record

Note: Layout of the BCM2837 PCM/I2S registers (See 8.8)
`CS_A:LongWord;`	PCM Control and Status
`FIFO_A:LongWord;`	PCM FIFO Data
`MODE_A:LongWord;`	PCM Mode
`RXC_A:LongWord;`	PCM Receive Configuration
`TXC_A:LongWord;`	PCM Transmit Configuration
`DREQ_A:LongWord;`	PCM DMA Request Level
`INTEN_A:LongWord;`	PCM Interrupt Enables
`INTSTC_A:LongWord;`	PCM Interrupt Status & Clear
`GRAY:LongWord;`	PCM Gray Mode Control

BCM2837 pulse width modulator (PWM) registers

PBCM2837PWMRegisters = ^TBCM2837PWMRegisters;

TBCM2837PWMRegisters = record

Note: Layout of the BCM2837 Pulse Width Modulator (PWM) registers (See 9.6)
`CTL:LongWord;`	PWM Control
`STA:LongWord;`	PWM Status
`DMAC:LongWord;`	PWM DMA Configuration
`Reserved1:LongWord;`
`RNG1:LongWord;`	PWM Channel 1 Range
`DAT1:LongWord;`	PWM Channel 1 Data
`FIF1:LongWord;`	PWM FIFO Input
`Reserved2:LongWord;`
`RNG2:LongWord;`	PWM Channel 2 Range
`DAT2:LongWord;`	PWM Channel 2 Data

BCM2837 PL011 UART registers

PBCM2837PL011Registers = ^TBCM2837PL011Registers;

TBCM2837PL011Registers = record

Note: Layout of the BCM2837 PL011 UART registers (See 13.4)
`DR:LongWord;`	Data Register
`RSRECR:LongWord;`	Receive Status Register/Error Clear Register
`Reserved01:LongWord;`
`Reserved02:LongWord;`
`Reserved03:LongWord;`
`Reserved04:LongWord;`
`FR:LongWord;`	Flag register
`Reserved05:LongWord;`
`ILPR:LongWord;`	Not in use
`IBRD:LongWord;`	Integer Baud rate divisor
`FBRD:LongWord;`	Fractional Baud rate divisor
`LCRH:LongWord;`	Line Control register
`CR:LongWord;`	Control register
`IFLS:LongWord;`	Interrupt FIFO Level Select Register
`IMSC:LongWord;`	Interrupt Mask Set Clear Register
`RIS:LongWord;`	Raw Interrupt Status Register
`MIS:LongWord;`	Masked Interrupt Status Register
`ICR:LongWord;`	Interrupt Clear Register
`DMACR:LongWord;`	DMA Control Register
`Reserved11:LongWord;`
`Reserved12:LongWord;`
`Reserved13:LongWord;`
`Reserved14:LongWord;`
`Reserved15:LongWord;`
`Reserved16:LongWord;`
`Reserved17:LongWord;`
`Reserved18:LongWord;`
`Reserved19:LongWord;`
`Reserved1A:LongWord;`
`Reserved1B:LongWord;`
`Reserved1C:LongWord;`
`Reserved1D:LongWord;`
`ITCR:LongWord;`	Test Control Register
`ITIP:LongWord;`	Integration Test Input Register
`ITOP:LongWord;`	Integration Test Output Register
`TDR:LongWord;`	Test Data Register

BCM2837 ARM timer registers

PBCM2837ARMTimerRegisters = ^TBCM2837ARMTimerRegisters;

TBCM2837ARMTimerRegisters = record

Note: Layout of the BCM2837 ARM Timer registers (See 14.2)
`Load:LongWord;`	Timer Load register
`Value:LongWord;`	Timer Value register
`Control:LongWord;`	Timer control register
`IRQClear:LongWord;`	Timer IRQ clear register
`RawIRQ:LongWord;`	Timer Raw IRQ register
`MaskedIRQ:LongWord;`	Timer Masked IRQ register
`Reload:LongWord;`	Timer Reload register
`Predivider:LongWord;`	The timer pre-divider register
`Counter:LongWord;`	Free running counter

BCM2837 power management watchdog registers

PBCM2837PMWatchdogRegisters = ^TBCM2837PMWatchdogRegisters;

TBCM2837PMWatchdogRegisters = record

Note: Layout of the BCM2837 Power Management Watchdog registers
`Reserved1:LongWord;`
`Reserved2:LongWord;`
`Reserved3:LongWord;`
`Reserved4:LongWord;`
`Reserved5:LongWord;`
`Reserved6:LongWord;`
`Reserved7:LongWord;`
`RSTC:LongWord;`
`RSTS:LongWord;`
`WDOG:LongWord;`

BCM2837 random number generator registers

PBCM2837RNGRegisters = ^TBCM2837RNGRegisters;

TBCM2837RNGRegisters = record

Note: Layout of the BCM2837 Random Number Generator registers
`Control:LongWord;`
`Status:LongWord;`
`Data:LongWord;`
`FFThreshold:LongWord;`

BCM2837 GPIO registers

PBCM2837GPIORegisters = ^TBCM2837GPIORegisters;

TBCM2837GPIORegisters = record

Note: Layout of the BCM2837 GPIO registers (See 6.1)
`GPFSEL0:LongWord;`	GPIO Function Select 0
`GPFSEL1:LongWord;`	GPIO Function Select 1
`GPFSEL2:LongWord;`	GPIO Function Select 2
`GPFSEL3:LongWord;`	GPIO Function Select 3
`GPFSEL4:LongWord;`	GPIO Function Select 4
`GPFSEL5:LongWord;`	GPIO Function Select 5
`Reserved1:LongWord;`
`GPSET0:LongWord;`	GPIO Pin Output Set 0
`GPSET1:LongWord;`	GPIO Pin Output Set 1
`Reserved2:LongWord;`
`GPCLR0:LongWord;`	GPIO Pin Output Clear 0
`GPCLR1:LongWord;`	GPIO Pin Output Clear 1
`Reserved3:LongWord;`
`GPLEV0:LongWord;`	GPIO Pin Level 0
`GPLEV1:LongWord;`	GPIO Pin Level 1
`Reserved4:LongWord;`
`GPEDS0:LongWord;`	GPIO Pin Event Detect Status 0
`GPEDS1:LongWord;`	GPIO Pin Event Detect Status 1
`Reserved5:LongWord;`
`GPREN0:LongWord;`	GPIO Pin Rising Edge Detect Enable 0
`GPREN1:LongWord;`	GPIO Pin Rising Edge Detect Enable 1
`Reserved6:LongWord;`
`GPFEN0:LongWord;`	GPIO Pin Falling Edge Detect Enable 0
`GPFEN1:LongWord;`	GPIO Pin Falling Edge Detect Enable 1
`Reserved7:LongWord;`
`GPHEN0:LongWord;`	GPIO Pin High Detect Enable 0
`GPHEN1:LongWord;`	GPIO Pin High Detect Enable 1
`Reserved8:LongWord;`
`GPLEN0:LongWord;`	GPIO Pin Low Detect Enable 0
`GPLEN1:LongWord;`	GPIO Pin Low Detect Enable 1
`Reserved9:LongWord;`
`GPAREN0:LongWord;`	GPIO Pin Async. Rising Edge Detect 0
`GPAREN1:LongWord;`	GPIO Pin Async. Rising Edge Detect 1
`Reserved10:LongWord;`
`GPAFEN0:LongWord;`	GPIO Pin Async. Falling Edge Detect 0
`GPAFEN1:LongWord;`	GPIO Pin Async. Falling Edge Detect 1
`Reserved11:LongWord;`
`GPPUD:LongWord;`	GPIO Pin Pull-up/down Enable
`GPPUDCLK0:LongWord;`	GPIO Pin Pull-up/down Enable Clock 0
`GPPUDCLK1:LongWord;`	GPIO Pin Pull-up/down Enable Clock 1
`Reserved12:LongWord;`
`Test:LongWord;`	Test

BCM2837 mailbox0 registers

PBCM2837Mailbox0Registers = ^TBCM2837Mailbox0Registers;

TBCM2837Mailbox0Registers = record

Note: Layout of the BCM2837 Mailbox0 registers (See https://github.com/raspberrypi/firmware/wiki/Mailboxes)
`Read:LongWord;`	Offset 0x00 (The read register for mailbox 0)
`Reserved1:LongWord;`	Offset 0x04
`Reserved2:LongWord;`	Offset 0x08
`Reserved3:LongWord;`	Offset 0x0C
`Peek:LongWord;`	Offset 0x10 (Read from the mailbox without removing data from it)
`Sender:LongWord;`	Offset 0x14 (Sender Id (bottom 2 bits only))
`Status:LongWord;`	Offset 0x18 (The status register for mailbox 0)
`Config:LongWord;`	Offset 0x1C (The configuration register for mailbox 0)

BCM2837 mailbox1 registers

PBCM2837Mailbox1Registers = ^TBCM2837Mailbox1Registers;

TBCM2837Mailbox1Registers = record

Note: Layout of the BCM2837 Mailbox1 registers (See https://github.com/raspberrypi/firmware/wiki/Mailboxes)
`Write:LongWord;`	Offset 0x00 (The write register for mailbox 0) (Also the read register for mailbox 1)
`Reserved1:LongWord;`	Offset 0x04
`Reserved2:LongWord;`	Offset 0x08
`Reserved3:LongWord;`	Offset 0x0C
`Reserved4:LongWord;`	Offset 0x10
`Reserved5:LongWord;`	Offset 0x14
`Status:LongWord;`	Offset 0x18 (The status register for mailbox 1}
`Config:LongWord;`	Offset 0x1C (The configuration register for mailbox 1)

BCM2837 mailbox framebuffer request

PBCM2837MailboxFramebuffer = ^TBCM2837MailboxFramebuffer;

TBCM2837MailboxFramebuffer = record

Note: Layout of the BCM2837 Mailbox Framebuffer request (This structure must be 16 byte aligned when passed to the GPU)
`PhysicalWidth:LongWord;`	Requested width of Physical Framebuffer
`PhysicalHeight:LongWord;`	Requested height of Physical Framebuffer
`VirtualWidth:LongWord;`	Requested width of Virtual Display
`VirtualHeight:LongWord;`	Requested height of Virtual Display
`Pitch:LongWord;`	Zero on request, Number of Bytes per Row in response
`Depth:LongWord;`	Requested Colour Depth in Bits per Pixel
`OffsetX:LongWord;`	Requested X offset of Virtual Framebuffer
`OffsetY:LongWord;`	Requested Y offset of Virtual Framebuffer
`Address:LongWord;`	Framebuffer address (Zero on request, Failure if zero in response)
`Size:LongWord;`	Framebuffer size (Zero on request, Size in bytes in response)

BCM2837 mailbox header property tags

PBCM2837MailboxHeader = ^TBCM2837MailboxHeader;

TBCM2837MailboxHeader = record

Note: Layout of the BCM2837 Mailbox Property tags (These structures must be 16 byte aligned when passed to the GPU)
Header
`Size:LongWord;`	Total buffer size in bytes (including the header values, the end tag and padding)
`Code:LongWord;`	Request/response code

BCM2837 mailbox footer property tags

PBCM2837MailboxFooter = ^TBCM2837MailboxFooter;

TBCM2837MailboxFooter = record

Footer
`Tag:LongWord;`	BCM2837_MBOX_TAG_END

BCM2837 mailbox tag headers

PBCM2837MailboxTagHeader = ^TBCM2837MailboxTagHeader;

TBCM2837MailboxTagHeader = record

Tag Header
`Tag:LongWord;`	Tag identifier
`Size:LongWord;`	Value buffer size in bytes
`Length:LongWord;`	1 bit (MSB) request/response indicator (0=request, 1=response), 31 bits (LSB) value length in bytes

BCM2837 mailbox tag no request

PBCM2837MailboxTagNoRequest = ^TBCM2837MailboxTagNoRequest;

TBCM2837MailboxTagNoRequest = record

Tag No Request

BCM2837 mailbox tag no response

PBCM2837MailboxTagNoResponse = ^TBCM2837MailboxTagNoResponse;

TBCM2837MailboxTagNoResponse = record

Tag No Response

BCM2837 mailbox tag firmware revision response

TBCM2837MailboxTagFirmwareRevisionResponse = record

Get Firmware Revision
`Revision:LongWord;`

BCM2837 mailbox tag get firmware revision

PBCM2837MailboxTagGetFirmwareRevision = ^TBCM2837MailboxTagGetFirmwareRevision;

TBCM2837MailboxTagGetFirmwareRevision = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagFirmwareRevisionResponse);`

BCM2837 mailbox tag board model response

TBCM2837MailboxTagBoardModelResponse = record

Get Board Model
`Model:LongWord;`

BCM2837 mailbox tag get board model

PBCM2837MailboxTagGetBoardModel = ^TBCM2837MailboxTagGetBoardModel;

TBCM2837MailboxTagGetBoardModel = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagBoardModelResponse);`

BCM2837 mailbox tag get board revision response

TBCM2837MailboxTagBoardRevisionResponse = record

Get Board Revision
`Revision:LongWord;`

BCM2837 mailbox tag get board revision

PBCM2837MailboxTagGetBoardRevision = ^TBCM2837MailboxTagGetBoardRevision;

TBCM2837MailboxTagGetBoardRevision = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagBoardRevisionResponse);`

BCM2837 mailbox tag MAC address response

TBCM2837MailboxTagMACAddressResponse = record

Get MAC Address
`MAC:array[0..5] of Byte;`	MAC address in network byte order
`Padding:Word;`

BCM2837 mailbox tag get MAC address

PBCM2837MailboxTagGetMACAddress = ^TBCM2837MailboxTagGetMACAddress;

TBCM2837MailboxTagGetMACAddress = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagMACAddressResponse);`

BCM2837 mailbox tag board serial response

TBCM2837MailboxTagBoardSerialResponse = record

Get Board Serial
`Serial:Int64;`

BCM2837 mailbox tag get board serial

PBCM2837MailboxTagGetBoardSerial = ^TBCM2837MailboxTagGetBoardSerial;

TBCM2837MailboxTagGetBoardSerial = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagBoardSerialResponse);`

BCM2837 mailbox tag ARM memory response

TBCM2837MailboxTagARMMemoryResponse = record

Get ARM Memory
`Address:LongWord;`	Base address in bytes
`Size:LongWord;`	Size in bytes

BCM2837 mailbox tag get ARM memory

PBCM2837MailboxTagGetARMMemory = ^TBCM2837MailboxTagGetARMMemory;

TBCM2837MailboxTagGetARMMemory = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagARMMemoryResponse);`

BCM2837 mailbox tag VC memory response

TBCM2837MailboxTagVCMemoryResponse = record

Get VC Memory
`Address:LongWord;`	Base address in bytes
`Size:LongWord;`	Size in bytes

BCM2837 mailbox tag get VC memory

PBCM2837MailboxTagGetVCMemory = ^TBCM2837MailboxTagGetVCMemory;

TBCM2837MailboxTagGetVCMemory = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagVCMemoryResponse);`

BCM2837 mailbox tag clock response

TBCM2837MailboxTagClockResponse = record

Get Clocks
`ParentId:LongWord;`
`ClockId:LongWord;`

BCM2837 mailbox tag clocks response

TBCM2837MailboxTagClocksResponse = record

`Clocks:array[0..255] of TBCM2837MailboxTagClockResponse;`

BCM2837 mailbox tag get clocks

PBCM2837MailboxTagGetClocks = ^TBCM2837MailboxTagGetClocks;

TBCM2837MailboxTagGetClocks = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagClocksResponse);`

BCM2837 mailbox tag get power state request

TBCM2837MailboxTagGetPowerStateRequest = record

Get Power State
`DeviceId:LongWord;`

BCM2837 mailbox tag power state response

TBCM2837MailboxTagPowerStateResponse = record

`DeviceId:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag get power state

PBCM2837MailboxTagGetPowerState = ^TBCM2837MailboxTagGetPowerState;

TBCM2837MailboxTagGetPowerState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetPowerStateRequest);`
`1:(Response:TBCM2837MailboxTagPowerStateResponse);`

BCM2837 mailbox tag timimg request

TBCM2837MailboxTagTimingRequest = record

Get Timing
`DeviceId:LongWord;`

BCM2837 mailbox tag timing response

TBCM2837MailboxTagTimingResponse = record

`DeviceId:LongWord;`
`Wait:LongWord;`	Enable wait time in microseconds

BCM2837 mailbox tag get timing

PBCM2837MailboxTagGetTiming = ^TBCM2837MailboxTagGetTiming;

TBCM2837MailboxTagGetTiming = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagTimingRequest);`
`1:(Response:TBCM2837MailboxTagTimingResponse);`

BCM2837 mailbox tag set power state request

TBCM2837MailboxTagSetPowerStateRequest = record

Set Power State
`DeviceId:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag set power state

PBCM2837MailboxTagSetPowerState = ^TBCM2837MailboxTagSetPowerState;

TBCM2837MailboxTagSetPowerState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetPowerStateRequest);`
`1:(Response:TBCM2837MailboxTagPowerStateResponse);`

BCM2837 mailbox tag get clock state request

TBCM2837MailboxTagGetClockStateRequest = record

Get Clock State
`ClockId:LongWord;`

BCM2837 mailbox tag clock state response

TBCM2837MailboxTagClockStateResponse = record

`ClockId:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag get clock state

PBCM2837MailboxTagGetClockState = ^TBCM2837MailboxTagGetClockState;

TBCM2837MailboxTagGetClockState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetClockStateRequest);`
`1:(Response:TBCM2837MailboxTagClockStateResponse);`

BCM2837 mailbox tag set clock state request

TBCM2837MailboxTagSetClockStateRequest = record

Set Clock State
`ClockId:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag set clock state

PBCM2837MailboxTagSetClockState = ^TBCM2837MailboxTagSetClockState;

TBCM2837MailboxTagSetClockState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetClockStateRequest);`
`1:(Response:TBCM2837MailboxTagClockStateResponse);`

BCM2837 mailbox tag get clock rate request

TBCM2837MailboxTagGetClockRateRequest = record

Get Clock Rate
`ClockId:LongWord;`

BCM2837 mailbox tag clock rate response

TBCM2837MailboxTagClockRateResponse = record

`ClockId:LongWord;`
`Rate:LongWord;`	In Hz

BCM2837 mailbox tag get clock rate

PBCM2837MailboxTagGetClockRate = ^TBCM2837MailboxTagGetClockRate;

TBCM2837MailboxTagGetClockRate = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetClockRateRequest);`
`1:(Response:TBCM2837MailboxTagClockRateResponse);`

BCM2837 mailbox tag set clock rate request

TBCM2837MailboxTagSetClockRateRequest = record

Set Clock Rate
`ClockId:LongWord;`
`Rate:LongWord;`
`SkipTurbo:LongWord;`	In Hz

BCM2837 mailbox tag set clock rate

PBCM2837MailboxTagSetClockRate = ^TBCM2837MailboxTagSetClockRate;

TBCM2837MailboxTagSetClockRate = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetClockRateRequest);`
`1:(Response:TBCM2837MailboxTagClockRateResponse);`

BCM2837 mailbox tag get clock max rate request

TBCM2837MailboxTagGetClockMaxRateRequest = record

Get Clock Max Rate
`ClockId:LongWord;`

BCM2837 mailbox tag get clock max rate response

TBCM2837MailboxTagGetClockMaxRateResponse = record

`ClockId:LongWord;`
`Rate:LongWord;`	In Hz

BCM2837 mailbox tag get clock max rate

PBCM2837MailboxTagGetClockMaxRate = ^TBCM2837MailboxTagGetClockMaxRate;

TBCM2837MailboxTagGetClockMaxRate = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetClockMaxRateRequest);`
`1:(Response:TBCM2837MailboxTagGetClockMaxRateResponse);`

BCM2837 mailbox tag get clock min rate

PBCM2837MailboxTagGetClockMinRate = ^TBCM2837MailboxTagGetClockMinRate;

TBCM2837MailboxTagGetClockMinRate = record

Get Clock Min Rate
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetClockMaxRateRequest);`
`1:(Response:TBCM2837MailboxTagGetClockMaxRateResponse);`

BCM2837 mailbox tag get turbo request

TBCM2837MailboxTagGetTurboRequest = record

Get Turbo
`Id:LongWord;`

BCM2837 mailbox tag turbo response

TBCM2837MailboxTagTurboResponse = record

`Id:LongWord;`
`Level:LongWord;`

BCM2837 mailbox tag get turbo

PBCM2837MailboxTagGetTurbo = ^TBCM2837MailboxTagGetTurbo;

TBCM2837MailboxTagGetTurbo = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetTurboRequest);`
`1:(Response:TBCM2837MailboxTagTurboResponse);`

BCM2837 mailbox tag set turbo request

TBCM2837MailboxTagSetTurboRequest = record

Set Turbo
`Id:LongWord;`
`Level:LongWord;`

BCM2837 mailbox tag set turbo

PBCM2837MailboxTagSetTurbo = ^TBCM2837MailboxTagSetTurbo;

TBCM2837MailboxTagSetTurbo = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetTurboRequest);`
`1:(Response:TBCM2837MailboxTagTurboResponse);`

BCM2837 mailbox tag get voltage request

TBCM2837MailboxTagGetVoltageRequest = record

Get Voltage
`VoltageId:LongWord;`

BCM2837 mailbox tag voltage response

TBCM2837MailboxTagVoltageResponse = record

`VoltageId:LongWord;`
`Value:LongWord;`	Offset from 1.2V in units of 0.025V

BCM2837 mailbox tag get voltage

PBCM2837MailboxTagGetVoltage = ^TBCM2837MailboxTagGetVoltage;

TBCM2837MailboxTagGetVoltage = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2837MailboxTagVoltageResponse);`

BCM2837 mailbox tag set voltage request

TBCM2837MailboxTagSetVoltageRequest = record

Set Voltage
`VoltageId:LongWord;`
`Value:LongWord;`	Offset from 1.2V in units of 0.025V

BCM2837 mailbox tag set voltage

PBCM2837MailboxTagSetVoltage = ^TBCM2837MailboxTagSetVoltage;

TBCM2837MailboxTagSetVoltage = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetVoltageRequest);`
`1:(Response:TBCM2837MailboxTagVoltageResponse);`

BCM2837 mailbox tag get max voltage

PBCM2837MailboxTagGetMaxVoltage = ^TBCM2837MailboxTagGetMaxVoltage;

TBCM2837MailboxTagGetMaxVoltage = record

Get Max Voltage
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2837MailboxTagVoltageResponse);`

BCM2837 mailbox tag get min voltage

PBCM2837MailboxTagGetMinVoltage = ^TBCM2837MailboxTagGetMinVoltage;

TBCM2837MailboxTagGetMinVoltage = record

Get Min Voltage
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2837MailboxTagVoltageResponse);`

BCM2837 mailbox tag temperature request

TBCM2837MailboxTagTemperatureRequest = record

Get Temperature
`TemperatureId:LongWord;`

BCM2837 mailbox tag temperature response

TBCM2837MailboxTagTemperatureResponse = record

`TemperatureId:LongWord;`	Should be zero
`Temperature:LongWord;`	Return the temperature of the SoC in thousandths of a degree C

BCM2837 mailbox tag get temperature

PBCM2837MailboxTagGetTemperature = ^TBCM2837MailboxTagGetTemperature;

TBCM2837MailboxTagGetTemperature = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagTemperatureRequest);`
`1:(Response:TBCM2837MailboxTagTemperatureResponse);`

BCM2837 mailbox tag get max temperature

PBCM2837MailboxTagGetMaxTemperature = ^TBCM2837MailboxTagGetMaxTemperature;

TBCM2837MailboxTagGetMaxTemperature = record

Get Max Temp
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagTemperatureRequest);`
`1:(Response:TBCM2837MailboxTagTemperatureResponse);`

BCM2837 mailbox tag allocate memory request

TBCM2837MailboxTagAllocateMemoryRequest = record

Allocate Memory
`Size:LongWord;`
`Alignment:LongWord;`
`Flags:LongWord;`

BCM2837 mailbox tag allocate memory response

TBCM2837MailboxTagAllocateMemoryResponse = record

`Handle:THandle;`

BCM2837 mailbox tag allocate memory

PBCM2837MailboxTagAllocateMemory = ^TBCM2837MailboxTagAllocateMemory;

TBCM2837MailboxTagAllocateMemory = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagAllocateMemoryRequest);`
`1:(Response:TBCM2837MailboxTagAllocateMemoryResponse);`

BCM2837 mailbox tag lock memory request

TBCM2837MailboxTagLockMemoryRequest = record

Lock Memory
`Handle:THandle;`

BCM2837 mailbox tag lock memory response

TBCM2837MailboxTagLockMemoryResponse = record

`Address:LongWord;`	Bus Address

BCM2837 mailbox tag lock memory

PBCM2837MailboxTagLockMemory = ^TBCM2837MailboxTagLockMemory;

TBCM2837MailboxTagLockMemory = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2837MailboxTagLockMemoryResponse);`

BCM2837 mailbox tag unlock memory response

TBCM2837MailboxTagUnlockMemoryResponse = record

Unlock Memory
`Status:LongWord;`	0 is Success

BCM2837 mailbox tag unlock memory

PBCM2837MailboxTagUnlockMemory = ^TBCM2837MailboxTagUnlockMemory;

TBCM2837MailboxTagUnlockMemory = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2837MailboxTagUnlockMemoryResponse);`

BCM2837 mailbox tag release memory

PBCM2837MailboxTagReleaseMemory = ^TBCM2837MailboxTagReleaseMemory;

TBCM2837MailboxTagReleaseMemory = record

Release Memory
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2837MailboxTagUnlockMemoryResponse);`

BCM2837 mailbox tag execute code request

TBCM2837MailboxTagExecuteCodeRequest = record

Execute Code
`Address:Pointer;`	Bus Address
`R0:LongWord;`
`R1:LongWord;`
`R2:LongWord;`
`R3:LongWord;`
`R4:LongWord;`
`R5:LongWord;`

BCM2837 mailbox tag execute code response

TBCM2837MailboxTagExecuteCodeResponse = record

`R0:LongWord;`

BCM2837 mailbox tag execute code

PBCM2837MailboxTagExecuteCode = ^TBCM2837MailboxTagExecuteCode;

TBCM2837MailboxTagExecuteCode = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagExecuteCodeRequest);`
`1:(Response:TBCM2837MailboxTagExecuteCodeResponse);`

BCM2837 mailbox tag execute QPU request

TBCM2837MailboxTagExecuteQPURequest = record

`NumQPUs:LongWord;`
`Control:LongWord;`
`NoFlush:LongWord;`
`Timeout:LongWord;`	Milliseconds

BCM2837 mailbox tag execute QPU response

TBCM2837MailboxTagExecuteQPUResponse = record

`Status:LongWord;`	0 is Success / 0x80000000 is Timeout

BCM2837 mailbox tag execute QPU

PBCM2837MailboxTagExecuteQPU = ^TBCM2837MailboxTagExecuteQPU;

TBCM2837MailboxTagExecuteQPU = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagExecuteQPURequest);`
`1:(Response:TBCM2837MailboxTagExecuteQPUResponse);`

BCM2837 mailbox tag enable QPU request

TBCM2837MailboxTagEnableQPURequest = record

`Enable:LongWord;`

BCM2837 mailbox tag enable QPU response

TBCM2837MailboxTagEnableQPUResponse = record

`Status:LongWord;`	0 is Success

BCM2837 mailbox tag enable QPU

PBCM2837MailboxTagEnableQPU = ^TBCM2837MailboxTagEnableQPU;

TBCM2837MailboxTagEnableQPU = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagEnableQPURequest);`
`1:(Response:TBCM2837MailboxTagEnableQPUResponse);`

BCM2837 mailbox tag get dispmanx handle request

TBCM2837MailboxTagGetDispmanxHandleRequest = record

Get Dispmanx Handle
`Resource:THandle;`

BCM2837 mailbox tag get dispmanx handle response

TBCM2837MailboxTagGetDispmanxHandleResponse = record

`Status:LongWord;`	0 is Success
`Memory:THandle;`

BCM2837 mailbox tag get dispmanx handle

PBCM2837MailboxTagGetDispmanxHandle = ^TBCM2837MailboxTagGetDispmanxHandle;

TBCM2837MailboxTagGetDispmanxHandle = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetDispmanxHandleRequest);`
`1:(Response:TBCM2837MailboxTagGetDispmanxHandleResponse);`

BCM2837 mailbox tag get EDID block request

TBCM2837MailboxTagGetEDIDBlockRequest = record

Get EDID Block
`Block:LongWord;`	Starting from 0

BCM2837 mailbox tag get EDID block response

TBCM2837MailboxTagGetEDIDBlockResponse = record

`Block:LongWord;`	Starting from 0
`Status:LongWord;`	0 is Success
`EDID:array[0..127] of Byte;`

BCM2837 mailbox tag get EDID block

PBCM2837MailboxTagGetEDIDBlock = ^TBCM2837MailboxTagGetEDIDBlock;

TBCM2837MailboxTagGetEDIDBlock = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetEDIDBlockRequest);`
`1:(Response:TBCM2837MailboxTagGetEDIDBlockResponse);`

BCM2837 mailbox tag GPIO state request

TBCM2837MailboxTagGPIOStateRequest = record

`GPIO:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag GPIO state response

TBCM2837MailboxTagGPIOStateResponse = record

`GPIO:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag get GPIO state

PBCM2837MailboxTagGetGPIOState = ^TBCM2837MailboxTagGetGPIOState;

TBCM2837MailboxTagGetGPIOState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGPIOStateRequest);`
`1:(Response:TBCM2837MailboxTagGPIOStateResponse);`

BCM2837 mailbox tag set GPIO state

PBCM2837MailboxTagSetGPIOState = ^TBCM2837MailboxTagSetGPIOState;

TBCM2837MailboxTagSetGPIOState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGPIOStateRequest);`
`1:(Response:TBCM2837MailboxTagGPIOStateResponse);`

BCM2837 mailbox tag get GPIO config request

TBCM2837MailboxTagGetGPIOConfigRequest = record

`GPIO:LongWord;`
`Direction:LongWord;`
`Polarity:LongWord;`
`Terminator:LongWord;`
`PullUp:LongWord;`

BCM2837 mailbox tag get GPIO config response

TBCM2837MailboxTagGetGPIOConfigResponse = record

`GPIO:LongWord;`
`Direction:LongWord;`
`Polarity:LongWord;`
`Terminator:LongWord;`
`PullUp:LongWord;`

BCM2837 mailbox tag get GPIO config

PBCM2837MailboxTagGetGPIOConfig = ^TBCM2837MailboxTagGetGPIOConfig;

TBCM2837MailboxTagGetGPIOConfig = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetGPIOConfigRequest);`
`1:(Response:TBCM2837MailboxTagGetGPIOConfigResponse);`

BCM2837 mailbox tag set GPIO config request

TBCM2837MailboxTagSetGPIOConfigRequest = record

`GPIO:LongWord;`
`Direction:LongWord;`
`Polarity:LongWord;`
`Terminator:LongWord;`
`PullUp:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag set GPIO config response

TBCM2837MailboxTagSetGPIOConfigResponse = record

`GPIO:LongWord;`
`Direction:LongWord;`
`Polarity:LongWord;`
`Terminator:LongWord;`
`PullUp:LongWord;`
`State:LongWord;`

BCM2837 mailbox tag set GPIO config

PBCM2837MailboxTagSetGPIOConfig = ^TBCM2837MailboxTagSetGPIOConfig;

TBCM2837MailboxTagSetGPIOConfig = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetGPIOConfigRequest);`
`1:(Response:TBCM2837MailboxTagSetGPIOConfigResponse);`

BCM2837 mailbox tag get throttled request

TBCM2837MailboxTagGetThrottledRequest = record

Get Throttled
`Value:LongWord;`

BCM2837 mailbox tag get throttled response

TBCM2837MailboxTagGetThrottledResponse = record

`Value:LongWord;`

BCM2837 mailbox tag get throttled

PBCM2837MailboxTagGetThrottled = ^TBCM2837MailboxTagGetThrottled;

TBCM2837MailboxTagGetThrottled = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetThrottledRequest);`
`1:(Response:TBCM2837MailboxTagGetThrottledResponse);`

BCM2837 mailbox tag get boot mode response

TBCM2837MailboxTagGetBootModeResponse = record

`BootMode:LongWord;`
`SignedBoot:LongWord;`

BCM2837 mailbox tag get boot mode

PBCM2837MailboxTagGetBootMode = ^TBCM2837MailboxTagGetBootMode;

TBCM2837MailboxTagGetBootMode = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagGetBootModeResponse);`

BCM2837 mailbox tag allocate buffer request

TBCM2837MailboxTagAllocateBufferRequest = record

Allocate Buffer
`Alignment:LongWord;`	Bytes

BCM2837 mailbox tag buffer response

TBCM2837MailboxTagAllocateBufferResponse = record

`Address:LongWord;`	Base Address in Bytes
`Size:LongWord;`	Size in Bytes

BCM2837 mailbox tag allocate buffer

PBCM2837MailboxTagAllocateBuffer = ^TBCM2837MailboxTagAllocateBuffer;

TBCM2837MailboxTagAllocateBuffer = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagAllocateBufferRequest);`
`1:(Response:TBCM2837MailboxTagAllocateBufferResponse);`

BCM2837 mailbox tag release buffer

PBCM2837MailboxTagReleaseBuffer = ^TBCM2837MailboxTagReleaseBuffer;

TBCM2837MailboxTagReleaseBuffer = record

Release Buffer
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagNoResponse);`

BCM2837 mailbox tag blank screen request

TBCM2837MailboxTagBlankScreenRequest = record

Blank Screen
`State:LongWord;`

BCM2837 mailbox tag blank screen response

TBCM2837MailboxTagBlankScreenResponse = record

`State:LongWord;`

BCM2837 mailbox tag blank screen

PBCM2837MailboxTagBlankScreen = ^TBCM2837MailboxTagBlankScreen;

TBCM2837MailboxTagBlankScreen = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagBlankScreenRequest);`
`1:(Response:TBCM2837MailboxTagBlankScreenResponse);`

BCM2837 mailbox tag physical request

TBCM2837MailboxTagPhysicalRequest = record

Get Physical
`Width:LongWord;`	Pixels
`Height:Longword;`	Pixels

BCM2837 mailbox tag physical response

TBCM2837MailboxTagPhysicalResponse = record

`Width:LongWord;`	Pixels
`Height:Longword;`	Pixels

BCM2837 mailbox tag get physical

PBCM2837MailboxTagGetPhysical = ^TBCM2837MailboxTagGetPhysical;

TBCM2837MailboxTagGetPhysical = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagPhysicalResponse);`

BCM2837 mailbox tag test physical

PBCM2837MailboxTagTestPhysical = ^TBCM2837MailboxTagTestPhysical;

TBCM2837MailboxTagTestPhysical = record

Test Physical
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPhysicalRequest);`
`1:(Response:TBCM2837MailboxTagPhysicalResponse);`

BCM2837 mailbox tag set physical

PBCM2837MailboxTagSetPhysical = ^TBCM2837MailboxTagSetPhysical;

TBCM2837MailboxTagSetPhysical = record

Set Physical
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPhysicalRequest);`
`1:(Response:TBCM2837MailboxTagPhysicalResponse);`

BCM2837 mailbox tag virtual request

TBCM2837MailboxTagVirtualRequest = record

Get Virtual
`Width:LongWord;`	Pixels
`Height:Longword;`	Pixels

BCM2837 mailbox tag virtual response

TBCM2837MailboxTagVirtualResponse = record

`Width:LongWord;`	Pixels
`Height:Longword;`	Pixels

BCM2837 mailbox tag get virtual

PBCM2837MailboxTagGetVirtual = ^TBCM2837MailboxTagGetVirtual;

TBCM2837MailboxTagGetVirtual = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagVirtualResponse);`

BCM2837 mailbox tag test virtual

PBCM2837MailboxTagTestVirtual = ^TBCM2837MailboxTagTestVirtual;

TBCM2837MailboxTagTestVirtual = record

Test Virtual
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagVirtualRequest);`
`1:(Response:TBCM2837MailboxTagVirtualResponse);`

BCM2837 mailbox tag set virtual

PBCM2837MailboxTagSetVirtual = ^TBCM2837MailboxTagSetVirtual;

TBCM2837MailboxTagSetVirtual = record

Set Virtual
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagVirtualRequest);`
`1:(Response:TBCM2837MailboxTagVirtualResponse);`

BCM2837 mailbox tag depth request

TBCM2837MailboxTagDepthRequest = record

Get Depth
`Depth:LongWord;`	Bits per pixel

BCM2837 mailbox tag depth response

TBCM2837MailboxTagDepthResponse = record

`Depth:LongWord;`	Bits per pixel

BCM2837 mailbox tag get depth

PBCM2837MailboxTagGetDepth = ^TBCM2837MailboxTagGetDepth;

TBCM2837MailboxTagGetDepth = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagDepthResponse);`

BCM2837 mailbox tag test depth

PBCM2837MailboxTagTestDepth = ^TBCM2837MailboxTagTestDepth;

TBCM2837MailboxTagTestDepth = record

Test Depth
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagDepthRequest);`
`1:(Response:TBCM2837MailboxTagDepthResponse);`

BCM2837 mailbox tag set depth

PBCM2837MailboxTagSetDepth = ^TBCM2837MailboxTagSetDepth;

TBCM2837MailboxTagSetDepth = record

Set Depth
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagDepthRequest);`
`1:(Response:TBCM2837MailboxTagDepthResponse);`

BCM2837 mailbox tag pixel order request

TBCM2837MailboxTagPixelOrderRequest = record

Get Pixel Order
`Order:LongWord;`

BCM2837 mailbox tag pixel order response

TBCM2837MailboxTagPixelOrderResponse = record

`Order:LongWord;`

BCM2837 mailbox tag get pixel order

PBCM2837MailboxTagGetPixelOrder = ^TBCM2837MailboxTagGetPixelOrder;

TBCM2837MailboxTagGetPixelOrder = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagPixelOrderResponse);`

BCM2837 mailbox tag test pixel order

PBCM2837MailboxTagTestPixelOrder = ^TBCM2837MailboxTagTestPixelOrder;

TBCM2837MailboxTagTestPixelOrder = record

Test Pixel Order
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPixelOrderRequest);`
`1:(Response:TBCM2837MailboxTagPixelOrderResponse);`

BCM2837 mailbox tag set pixel order

PBCM2837MailboxTagSetPixelOrder = ^TBCM2837MailboxTagSetPixelOrder;

TBCM2837MailboxTagSetPixelOrder = record

Set Pixel Order
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPixelOrderRequest);`
`1:(Response:TBCM2837MailboxTagPixelOrderResponse);`

BCM2837 mailbox tag alpha mode request

TBCM2837MailboxTagAlphaModeRequest = record

Get Alpha Mode
`Mode:LongWord;`

BCM2837 mailbox tag alpha mode response

TBCM2837MailboxTagAlphaModeResponse = record

`Mode:LongWord;`

BCM2837 mailbox tag get alpha mode

PBCM2837MailboxTagGetAlphaMode = ^TBCM2837MailboxTagGetAlphaMode;

TBCM2837MailboxTagGetAlphaMode = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagAlphaModeResponse);`

BCM2837 mailbox tag test alpha mode

PBCM2837MailboxTagTestAlphaMode = ^TBCM2837MailboxTagTestAlphaMode;

TBCM2837MailboxTagTestAlphaMode = record

Test Alpha Mode
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagAlphaModeRequest);`
`1:(Response:TBCM2837MailboxTagAlphaModeResponse);`

BCM2837 mailbox tag set alpha mode

PBCM2837MailboxTagSetAlphaMode = ^TBCM2837MailboxTagSetAlphaMode;

TBCM2837MailboxTagSetAlphaMode = record

Set Alpha Mode
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagAlphaModeRequest);`
`1:(Response:TBCM2837MailboxTagAlphaModeResponse);`

BCM2837 mailbox tag pitch response

TBCM2837MailboxTagPitchResponse = record

Get Pitch
`Pitch:LongWord;`	Bytes per line

BCM2837 mailbox tag get pitch

PBCM2837MailboxTagGetPitch = ^TBCM2837MailboxTagGetPitch;

TBCM2837MailboxTagGetPitch = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagPitchResponse);`

BCM2837 mailbox tag virtual offset request

TBCM2837MailboxTagVirtualOffsetRequest = record

Get Virtual Offset
`X:LongWord;`	Pixels
`Y:LongWord;`	Pixels

BCM2837 mailbox tag virtual offset response

TBCM2837MailboxTagVirtualOffsetResponse = record

`X:LongWord;`	Pixels
`Y:LongWord;`	Pixels

BCM2837 mailbox tag get virtual offset

PBCM2837MailboxTagGetVirtualOffset = ^TBCM2837MailboxTagGetVirtualOffset;

TBCM2837MailboxTagGetVirtualOffset = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagVirtualOffsetResponse);`

BCM2837 mailbox tag test virtual offset

PBCM2837MailboxTagTestVirtualOffset = ^TBCM2837MailboxTagTestVirtualOffset;

TBCM2837MailboxTagTestVirtualOffset = record

Test Virtual Offset
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagVirtualOffsetRequest);`
`1:(Response:TBCM2837MailboxTagVirtualOffsetResponse);`

BCM2837 mailbox tag set virtual offset

PBCM2837MailboxTagSetVirtualOffset = ^TBCM2837MailboxTagSetVirtualOffset;

TBCM2837MailboxTagSetVirtualOffset = record

Set Virtual Offset
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagVirtualOffsetRequest);`
`1:(Response:TBCM2837MailboxTagVirtualOffsetResponse);`

BCM2837 mailbox tag overscan request

TBCM2837MailboxTagOverscanRequest = record

Get Overscan
`Top:LongWord;`	Pixels
`Bottom:LongWord;`	Pixels
`Left:LongWord;`	Pixels
`Right:LongWord;`	Pixels

BCM2837 mailbox tag overscan response

TBCM2837MailboxTagOverscanResponse = record

`Top:LongWord;`	Pixels
`Bottom:LongWord;`	Pixels
`Left:LongWord;`	Pixels
`Right:LongWord;`	Pixels

BCM2837 mailbox tag get overscan

PBCM2837MailboxTagGetOverscan = ^TBCM2837MailboxTagGetOverscan;

TBCM2837MailboxTagGetOverscan = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagOverscanResponse);`

BCM2837 mailbox tag test overscan

PBCM2837MailboxTagTestOverscan = ^TBCM2837MailboxTagTestOverscan;

TBCM2837MailboxTagTestOverscan = record

Test Overscan
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagOverscanRequest);`
`1:(Response:TBCM2837MailboxTagOverscanResponse);`

BCM2837 mailbox tag set overscan

PBCM2837MailboxTagSetOverscan = ^TBCM2837MailboxTagSetOverscan;

TBCM2837MailboxTagSetOverscan = record

Set Overscan
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagOverscanRequest);`
`1:(Response:TBCM2837MailboxTagOverscanResponse);`

BCM2837 mailbox tag get palette response

TBCM2837MailboxTagGetPaletteResponse = record

Get Palette
`Values:array[0..255] of LongWord;`	RGBA Palette Values

BCM2837 mailbox tag get palette

PBCM2837MailboxTagGetPalette = ^TBCM2837MailboxTagGetPalette;

TBCM2837MailboxTagGetPalette = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagGetPaletteResponse);`

BCM2837 mailbox tag palette request

TBCM2837MailboxTagPaletteRequest = record

Test Palette
`Offset:LongWord;`	First palette index to set (0-255)
`Length:LongWord;`	Number of palette entries to set (1-256)
`Values:array[0..255] of LongWord;`	RGBA Palette Values

BCM2837 mailbox tag palette response

TBCM2837MailboxTagPaletteResponse = record

`Status:LongWord;`

BCM2837 mailbox tag test palette

PBCM2837MailboxTagTestPalette = ^TBCM2837MailboxTagTestPalette;

TBCM2837MailboxTagTestPalette = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPaletteRequest);`
`1:(Response:TBCM2837MailboxTagPaletteResponse);`

BCM2837 mailbox tag set palette

PBCM2837MailboxTagSetPalette = ^TBCM2837MailboxTagSetPalette;

TBCM2837MailboxTagSetPalette = record

Set Palette
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagPaletteRequest);`
`1:(Response:TBCM2837MailboxTagPaletteResponse);`

BCM2837 mailbox tag layer request

TBCM2837MailboxTagLayerRequest = record

Get Layer
`Layer:LongInt;`

BCM2837 mailbox tag layer response

TBCM2837MailboxTagLayerResponse = record

`Layer:LongInt;`

BCM2837 mailbox tag get layer

PBCM2837MailboxTagGetLayer = ^TBCM2837MailboxTagGetLayer;

TBCM2837MailboxTagGetLayer = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagLayerResponse);`

BCM2837 mailbox tag test layer

PBCM2837MailboxTagTestLayer = ^TBCM2837MailboxTagTestLayer;

TBCM2837MailboxTagTestLayer = record

Test layer
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagLayerRequest);`
`1:(Response:TBCM2837MailboxTagLayerResponse);`

BCM2837 mailbox tag set layer

PBCM2837MailboxTagSetLayer = ^TBCM2837MailboxTagSetLayer;

TBCM2837MailboxTagSetLayer = record

Set layer
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagLayerRequest);`
`1:(Response:TBCM2837MailboxTagLayerResponse);`

BCM2837 mailbox tag get touch response

TBCM2837MailboxTagGetTouchResponse = record

Get Touch Buffer
`Address:LongWord;`

BCM2837 mailbox tag get touch

PBCM2837MailboxTagGetTouch = ^TBCM2837MailboxTagGetTouch;

TBCM2837MailboxTagGetTouch = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagGetTouchResponse);`

BCM2837 mailbox tag set touch request

TBCM2837MailboxTagSetTouchRequest = record

`Address:LongWord;`

BCM2837 mailbox tag set touch response

TBCM2837MailboxTagSetTouchResponse = record

`Status:LongWord;`

BCM2837 mailbox tag set touch

PBCM2837MailboxTagSetTouch = ^TBCM2837MailboxTagSetTouch;

TBCM2837MailboxTagSetTouch = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetTouchRequest);`
`1:(Response:TBCM2837MailboxTagSetTouchResponse);`

BCM2837 mailbox tag get virtual GPIO response

TBCM2837MailboxTagGetVirtualGPIOResponse = record

Get Virtual GPIO Buffer
`Address:LongWord;`

BCM2837 mailbox tag get virtual GPIO

PBCM2837MailboxTagGetVirtualGPIO = ^TBCM2837MailboxTagGetVirtualGPIO;

TBCM2837MailboxTagGetVirtualGPIO = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagGetVirtualGPIOResponse);`

BCM2837 mailbox tag set virtual GPIO request

TBCM2837MailboxTagSetVirtualGPIORequest = record

`Address:LongWord;`

BCM2837 mailbox tag set virtual GPIO response

TBCM2876MailboxTagSetVirtualGPIOResponse = record

`Status:LongWord;`

BCM2837 mailbox tag set virtual GPIO

PBCM2837MailboxTagSetVirtualGPIO = ^TBCM2837MailboxTagSetVirtualGPIO;

TBCM2837MailboxTagSetVirtualGPIO = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetVirtualGPIORequest);`
`1:(Response:TBCM2876MailboxTagSetVirtualGPIOResponse);`

BCM2837 mailbox tag test vsync

PBCM2837MailboxTagTestVsync = ^TBCM2837MailboxTagTestVsync;

TBCM2837MailboxTagTestVsync = record

Test Vsync
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagNoResponse);`

BCM2837 mailbox tag set vsync

PBCM2837MailboxTagSetVsync = ^TBCM2837MailboxTagSetVsync;

TBCM2837MailboxTagSetVsync = record

Set Vsync
`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagNoResponse);`

BCM2837 mailbox tag set backlight request

TBCM2837MailboxTagSetBacklightRequest = record

Set Backlight
`Brightness:LongWord;`

BCM2837 mailbox tag set backlight response

TBCM2837MailboxTagSetBacklightResponse = record

`Brightness:LongWord;`

BCM2837 mailbox tag set backlight

PBCM2837MailboxTagSetBacklight = ^TBCM2837MailboxTagSetBacklight;

TBCM2837MailboxTagSetBacklight = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetBacklightRequest);`
`1:(Response:TBCM2837MailboxTagSetBacklightResponse);`

BCM2837 mailbox tag get display count request

TBCM2837MailboxTagGetDisplayCountRequest = record

`Dummy:LongWord;`

BCM2837 mailbox tag get display count response

TBCM2837MailboxTagGetDisplayCountResponse = record

`DisplayCount:LongWord;`

BCM2837 mailbox tag get display count

PBCM2837MailboxTagGetDisplayCount = ^TBCM2837MailboxTagGetDisplayCount;

TBCM2837MailboxTagGetDisplayCount = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetDisplayCountRequest);`
`1:(Response:TBCM2837MailboxTagGetDisplayCountResponse);`

BCM2837 mailbox tag get display settings request

TBCM2837MailboxTagGetDisplaySettingsRequest = record

`DisplayNumber:LongWord;`
`Width:LongWord;`
`Height:LongWord;`
`Pitch:LongWord;`
`Depth:LongWord;`
`VirtualWidth:LongWord;`
`VirtualHeight:LongWord;`
`VirtualOffsetX:LongWord;`
`VirtualOffsetY:LongWord;`
`Address:LongWord;`	Framebuffer Bus Address

BCM2837 mailbox tag get display settings

PBCM2837MailboxTagGetDisplaySettings = ^TBCM2837MailboxTagGetDisplaySettings;

TBCM2837MailboxTagGetDisplaySettings = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagGetDisplaySettingsRequest);`
`1:(Response:TBCM2837MailboxTagGetDisplaySettingsResponse);`

BCM2837 mailbox tag set display number request

TBCM2837MailboxTagSetDisplayNumberRequest = record

`DisplayNumber:LongWord;`

BCM2837 mailbox tag set display number response

TBCM2837MailboxTagSetDisplayNumberResponse = record

`Dummy:LongWord;`

BCM2837 mailbox tag set display number

PBCM2837MailboxTagSetDisplayNumber = ^TBCM2837MailboxTagSetDisplayNumber;

TBCM2837MailboxTagSetDisplayNumber = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetDisplayNumberRequest);`
`1:(Response:TBCM2837MailboxTagSetDisplayNumberResponse);`

BCM2837 mailbox tag set cursor info request

TBCM2837MailboxTagSetCursorInfoRequest = record

Set Cursor Info
`Width:LongWord;`	Pixels
`Height:LongWord;`	Pixels
`Reserved:LongWord;`
`Pixels:Pointer;`	Format is 32bpp (ARGB) (Width and Height should be >= 16 and (Width * Height) <= 64)
`HotspotX:LongWord;`
`HotspotY:LongWord;`

BCM2837 mailbox tag cursor response

TBCM2837MailboxTagCursorResponse = record

`Status:LongWord;`

BCM2837 mailbox tag set cursor info

PBCM2837MailboxTagSetCursorInfo = ^TBCM2837MailboxTagSetCursorInfo;

TBCM2837MailboxTagSetCursorInfo = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetCursorInfoRequest);`
`1:(Response:TBCM2837MailboxTagCursorResponse);`

BCM2837 mailbox tag set cursor state request

TBCM2837MailboxTagSetCursorStateRequest = record

Set Cursor State
`Enable:LongWord;`
`X:LongWord;`	Pixels
`Y:LongWord;`	Pixels
`Flags:LongWord;`

BCM2837 mailbox tag set cursor state

PBCM2837MailboxTagSetCursorState = ^TBCM2837MailboxTagSetCursorState;

TBCM2837MailboxTagSetCursorState = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagSetCursorStateRequest);`
`1:(Response:TBCM2837MailboxTagCursorResponse);`

BCM2837 mailbox tag VCHIQ init request

TBCM2837MailboxTagVCHIQInitRequest = record

`Address:LongWord;`

BCM2837 mailbox tag VCHIQ init response

TBCM2837MailboxTagVCHIQInitResponse = record

`Status:LongWord;`	0 is Success

BCM2837 mailbox tag VCHIQ init

PBCM2837MailboxTagVCHIQInit = ^TBCM2837MailboxTagVCHIQInit;

TBCM2837MailboxTagVCHIQInit = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagVCHIQInitRequest);`
`1:(Response:TBCM2837MailboxTagVCHIQInitResponse);`

BCM2837 mailbox tag command line response

TBCM2837MailboxTagCommandLineResponse = record

Get Command Line
`CommandLine:array[0..1023] of Char;`

BCM2837 mailbox tag get command line

PBCM2837MailboxTagGetCommandLine = ^TBCM2837MailboxTagGetCommandLine;

TBCM2837MailboxTagGetCommandLine = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagCommandLineResponse);`

BCM2837 mailbox tag DMA channels response

TBCM2837MailboxTagDMAChannelsResponse = record

Get DMA Channels
`Channels:LongWord;`

BCM2837 mailbox tag get DMA channels

PBCM2837MailboxTagGetDMAChannels = ^TBCM2837MailboxTagGetDMAChannels;

TBCM2837MailboxTagGetDMAChannels = record

`Header:TBCM2837MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2837MailboxTagNoRequest);`
`1:(Response:TBCM2837MailboxTagDMAChannelsResponse);`

BCM2837 mailbox tag create buffer

PBCM2837MailboxTagCreateBuffer = ^TBCM2837MailboxTagCreateBuffer;

TBCM2837MailboxTagCreateBuffer = record

Note: A combination tag to allocate and configure a framebuffer in one request
Create Buffer
`Physical:TBCM2837MailboxTagSetPhysical;`
`Vertual:TBCM2837MailboxTagSetVirtual;`
`Depth:TBCM2837MailboxTagSetDepth;`
`Order:TBCM2837MailboxTagSetPixelOrder;`
`Mode:TBCM2837MailboxTagSetAlphaMode;`
`Offset:TBCM2837MailboxTagSetVirtualOffset;`
`Overscan:TBCM2837MailboxTagSetOverscan;`
`Allocate:TBCM2837MailboxTagAllocateBuffer;`
`Pitch:TBCM2837MailboxTagGetPitch;`

BCM2837 mailbox tag query buffer

PBCM2837MailboxTagQueryBuffer = ^TBCM2837MailboxTagQueryBuffer;

TBCM2837MailboxTagQueryBuffer = record

Note: A combination tag to query all framebuffer properties in one request
Query Buffer
`Physical:TBCM2837MailboxTagGetPhysical;`
`Vertual:TBCM2837MailboxTagGetVirtual;`
`Depth:TBCM2837MailboxTagGetDepth;`
`Order:TBCM2837MailboxTagGetPixelOrder;`
`Mode:TBCM2837MailboxTagGetAlphaMode;`
`Offset:TBCM2837MailboxTagGetVirtualOffset;`
`Overscan:TBCM2837MailboxTagGetOverscan;`
`Pitch:TBCM2837MailboxTagGetPitch;`

BCM2837 ARM local mailbox write registers

PBCM2837ARMLocalMailboxWriteRegisters = ^TBCM2837ARMLocalMailboxWriteRegisters;

TBCM2837ARMLocalMailboxWriteRegisters = record

Note: BCM2837 ARM local structures (See: QA7 Rev3.4.pdf)
`Mailbox0Write:LongWord;`	Mailbox 0 write-set (WO)
`Mailbox1Write:LongWord;`	Mailbox 1 write-set (WO)
`Mailbox2Write:LongWord;`	Mailbox 2 write-set (WO)
`Mailbox3Write:LongWord;`	Mailbox 3 write-set (WO)

BCM2837 ARM local mailbox read clear registers

PBCM2837ARMLocalMailboxReadClearRegisters = ^TBCM2837ARMLocalMailboxReadClearRegisters;

TBCM2837ARMLocalMailboxReadClearRegisters = record

`Mailbox0ReadClear:LongWord;`	Mailbox 0 read & write-high-to-clear
`Mailbox1ReadClear:LongWord;`	Mailbox 1 read & write-high-to-clear
`Mailbox2ReadClear:LongWord;`	Mailbox 2 read & write-high-to-clear
`Mailbox3ReadClear:LongWord;`	Mailbox 3 read & write-high-to-clear

BCM2837 ARM local registers

PBCM2837ARMLocalRegisters = ^TBCM2837ARMLocalRegisters;

TBCM2837ARMLocalRegisters = record

`Control:LongWord;`	Control register $0000
`Reserved1:LongWord;`	Unused $0004
`CoreTimerPrescaler:LongWord;`	Core timer prescaler $0008
`GPUInterruptRouting:LongWord;`	GPU interrupts routing $000C
`PMInterruptRoutingSet:LongWord;`	Performance Monitor Interrupts routing-set $0010
`PMInterruptRoutingClear:LongWord;`	Performance Monitor Interrupts routing-clear $0014
`Reserved2:LongWord;`	Unused $0018
`CoreTimerLow:LongWord;`	Core timer access LS 32 bits $001C
`CoreTimerHigh:LongWord;`	Core timer access MS 32 bits $0020
`LocalIntRouting0:LongWord;`	Local Interrupts 0-7 routing (1 to 7 Unused) $0024
`LocalIntRouting1:LongWord;`	Local Interrupts 8-15 routing (Unused) $0028
`AXIOutstandingCount:LongWord;`	AXI outstanding counters $002C
`AXIOutstandingIRQ:LongWord;`	AXI outstanding IRQ $0030
`LocalTimerControl:LongWord;`	Local timer control & status $0034
`LocalTimerClearReload:LongWord;`	Local timer IRQ clear & reload $0038
`Reserved3:LongWord;`	Unused $003C
`TimersIntControl:array[0..BCM2837_CPU_COUNT - 1] of LongWord;`	Core0-3 Timers Interrupt control $0040-004C
`MailboxIntControl:array[0..BCM2837_CPU_COUNT - 1] of LongWord;`	Core0-3 Mailboxes Interrupt control $0050-005C
`IRQPending:array[0..BCM2837_CPU_COUNT - 1] of LongWord;`	Core0-3 IRQ Source $0060-006C
`FIQPending:array[0..BCM2837_CPU_COUNT - 1] of LongWord;`	Core0-3 FIQ Source $0070-007C
`MailboxWrite:array[0..BCM2837_CPU_COUNT - 1] of TBCM2837ARMLocalMailboxWriteRegisters;`	Core0-3 Mailbox 0-3 write-set (WO) $0080-00BC
`MailboxReadClear:array[0..BCM2837_CPU_COUNT - 1] of TBCM2837ARMLocalMailboxReadClearRegisters;`	Core0-3 Mailbox 0-3 read & write-high-to-clear $00C0-00FC

BCM2837 virtual GPIO buffer

PBCM2837VirtualGPIOBuffer = ^TBCM2837VirtualGPIOBuffer;

TBCM2837VirtualGPIOBuffer = record

`Buffer:Pointer;`
`Address:LongWord;`
`CachedBuffer:LongBool;`
`EnableDisable:array[0..BCM2837_VIRTUAL_GPIO_PIN_COUNT - 1] of LongWord;`	Two packed 16-bit counts of enabled and disabled/Allows host to detect a brief enable that was missed

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Function declarations

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Unit BCM2837

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See: BCM2835-ARM-Peripherals.pdf

`BCM2837_VCIO_ALIAS = $7E000000;`