Unit BCM2835

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See: BCM2835-ARM-Peripherals.pdf

`BCM2835_VCBUS_0_ALIAS = $00000000;`	0 Alias - L1 and L2 cached
`BCM2835_VCBUS_4_ALIAS = $40000000;`	4 Alias - L2 cache coherent (non allocating) Suitable for RPi Model A/B/A+/B+ if disable_l2cache=0 in config.txt (Default)
`BCM2835_VCBUS_8_ALIAS = $80000000;`	8 Alias - L2 cached (only)
`BCM2835_VCBUS_C_ALIAS = $C0000000;`	C Alias - Direct uncached Suitable for RPi Model A/B/A+/B+ only if disable_l2cache=1 in config.txt

BCM2835 peripherals BCM2835_PERIPHERALS_*

See: BCM2835-ARM-Peripherals.pdf

`BCM2835_PERIPHERALS_BASE = $20000000;`	Mapped to VC address 7E000000
`BCM2835_PERIPHERALS_SIZE = SIZE_16M;`

BCM2835 interrupt controller 0 BCM2835_IC0_*

`BCM2835_IC0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $2000;`

BCM2835 system timer BCM2835_SYSTEM_TIMER_*

See Section 12

`BCM2835_SYSTEM_TIMER_REGS_BASE = BCM2835_PERIPHERALS_BASE + $3000;`

BCM2835 message based parallel host interface BCM2835_MPHI_*

`BCM2835_MPHI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $6000;`

BCM2835 DMA controller BCM2835_DMA*

See Section 4

Channels 0 to 14
`BCM2835_DMA0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7000;`
`BCM2835_DMA1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7100;`
`BCM2835_DMA2_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7200;`
`BCM2835_DMA3_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7300;`
`BCM2835_DMA4_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7400;`
`BCM2835_DMA5_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7500;`
`BCM2835_DMA6_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7600;`
`BCM2835_DMA7_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7700;`
`BCM2835_DMA8_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7800;`
`BCM2835_DMA9_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7900;`
`BCM2835_DMA10_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7A00;`
`BCM2835_DMA11_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7B00;`
`BCM2835_DMA12_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7C00;`
`BCM2835_DMA13_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7D00;`
`BCM2835_DMA14_REGS_BASE = BCM2835_PERIPHERALS_BASE + $7E00;`

`BCM2835_DMA_INT_STATUS_BASE = BCM2835_PERIPHERALS_BASE + $7FE0;`
`BCM2835_DMA_ENABLE_BASE = BCM2835_PERIPHERALS_BASE + $7FF0;`

BCM2835 ARM interrupt controller BCM2835_INTERRUPT_*

See Section 7

`BCM2835_INTERRUPT_REGS_BASE = BCM2835_PERIPHERALS_BASE + $B200;`	Note: Broadcom states 0xB000 but the offsets begin at 0x200 so 0xB200 will be correct

BCM2835 ARM timer BCM2835_TIMER_*

See Section 14

`BCM2835_TIMER_REGS_BASE = BCM2835_PERIPHERALS_BASE + $B400;`	Note: Broadcom states 0xB000 but the offsets begin at 0x400 so 0xB400 will be correct

BCM2835 ARM doorbell BCM2835_DOORBELL_*

`BCM2835_DOORBELL_REGS_BASE = BCM2835_PERIPHERALS_BASE + $B840;`

BCM2835 ARM mailbox 0 BCM2835_MAILBOX0_*

`BCM2835_MAILBOX0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $B880;`

BCM2835 ARM mailbox 1 BCM2835_MAILBOX1_*

`BCM2835_MAILBOX1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $B8A0;`

BCM2835 power management, reset controller and watchdog BCM2835_PM_*

`BCM2835_PM_REGS_BASE = BCM2835_PERIPHERALS_BASE + $100000;`

BCM2835 clock management BCM2835_CM_*

`BCM2835_CM_REGS_BASE = BCM2835_PERIPHERALS_BASE + $101000;`

BCM2835 PCM clock BCM2835_PCM_CLOCK_*

`BCM2835_PCM_CLOCK_BASE = BCM2835_PERIPHERALS_BASE + $101098;`

BCM2835 random number generator BCM2835_RNG_*

`BCM2835_RNG_REGS_BASE = BCM2835_PERIPHERALS_BASE + $104000;`

BCM2835 GPIO BCM2835_GPIO_*

See Section 6

`BCM2835_GPIO_REGS_BASE = BCM2835_PERIPHERALS_BASE + $200000;`

BCM2835 UART0 (PL011) BCM2835_PL011_*

See Section 13

`BCM2835_PL011_REGS_BASE = BCM2835_PERIPHERALS_BASE + $201000;`

BCM2835 MMCI0 BCM2835_MMCI0_*

`BCM2835_MMCI0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $202000;`
`BCM2835_SDHOST_REGS_BASE = BCM2835_MMCI0_REGS_BASE;`

BCM2835 PCM/I2S audio BCM2835_PCM_*

See Section 8

`BCM2835_PCM_REGS_BASE = BCM2835_PERIPHERALS_BASE + $203000;`

BCM2835 SPI0 BCM2835_SPI0_*

See Section 10

`BCM2835_SPI0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $204000;`

BCM2835 BSC0 (I2C) BCM2835_BSC0_*

See Section 3

`BCM2835_BSC0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $205000;`

BCM2835 pixel valve 0 BCM2835_PIXELVALVE0_*

`BCM2835_PIXELVALVE0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $206000;`

BCM2835 pixel valve 1 BCM2835_PIXELVALVE1_*

`BCM2835_PIXELVALVE1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $207000;`

BCM2835 DPI (Display Parallel Interface) BCM2835_DPI_*

`BCM2835_DPI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $208000;`

BCM2835 DSI0 (Display Serial Interface) BCM2835_DSI0_*

`BCM2835_DSI0_REGS_BASE = BCM2835_PERIPHERALS_BASE + $209000;`

BCM2835 PWM BCM2835_PWM_*

See Section 9

`BCM2835_PWM_REGS_BASE = BCM2835_PERIPHERALS_BASE + $20C000;`

BCM2835 I2C/SPI slave BCM2835_I2CSPI_*

See Section 11

`BCM2835_I2CSPI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $214000;`

BCM2835 AUX BCM2835_AUX_*

See Section 2

`BCM2835_AUX_REGS_BASE = BCM2835_PERIPHERALS_BASE + $215000;`

BCM2835 UART1 BCM2835_UART1_*

See Section 2

`BCM2835_UART1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $215040;`

BCM2835 SPI1 BCM2835_SPI1_*

See Section 2

`BCM2835_SPI1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $215080;`

BCM2835 SPI2 BCM2835_SPI2_*

See Section 2

`BCM2835_SPI2_REGS_BASE = BCM2835_PERIPHERALS_BASE + $2150C0;`

BCM2835 SD host controller BCM2835_SDHCI_*

See Section 5

`BCM2835_SDHCI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $300000;`

BCM2835 HVS BCM2835_HVS_*

`BCM2835_HVS_REGS_BASE = BCM2835_PERIPHERALS_BASE + $400000;`

BCM2835 SMI BCM2835_SMI_*

`BCM2835_SMI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $600000;`

BCM2835 DSI1 (Display Serial Interface) BCM2835_DSI1_*

`BCM2835_DSI1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $700000;`

BCM2835 BSC1 (I2C) BCM2835_BSC1_*

See Section 3

`BCM2835_BSC1_REGS_BASE = BCM2835_PERIPHERALS_BASE + $804000;`

BCM2835 BSC2 (I2C) BCM2835_BSC2_*

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

`BCM2835_BSC2_REGS_BASE = BCM2835_PERIPHERALS_BASE + $805000;`

BCM2835 VEC BCM2835_VEC_*

`BCM2835_VEC_REGS_BASE = BCM2835_PERIPHERALS_BASE + $806000;`

BCM2835 pixel valve 2 BCM2835_PIXELVALVE2_*

`BCM2835_PIXELVALVE2_REGS_BASE = BCM2835_PERIPHERALS_BASE + $807000;`

BCM2835 HDMI BCM2835_HDMI_*

`BCM2835_HDMI_REGS_BASE = BCM2835_PERIPHERALS_BASE + $902000;`

BCM2835 USB BCM2835_USB_*

See Section 15

`BCM2835_USB_REGS_BASE = BCM2835_PERIPHERALS_BASE + $980000;`

BCM2835 V3D BCM2835_V3D_*

`BCM2835_V3D_REGS_BASE = BCM2835_PERIPHERALS_BASE + $C00000;`

BCM2835 DMA controller BCM2835_DMA15_*

Channel 15 (See Section 4)

`BCM2835_DMA15_REGS_BASE = BCM2835_PERIPHERALS_BASE + $E05000;`

BCM2835 IRQ peripheral BCM2835_IRQ_*

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

System Timer
`BCM2835_IRQ_SYSTEM_TIMER_0 = 0;`	Already used by the VideoCore GPU (Do not use)
`BCM2835_IRQ_SYSTEM_TIMER_1 = 1;`
`BCM2835_IRQ_SYSTEM_TIMER_2 = 2;`	Already used by the VideoCore GPU (Do not use)
`BCM2835_IRQ_SYSTEM_TIMER_3 = 3;`
Codec
`BCM2835_IRQ_CODEC0 = 4;`
`BCM2835_IRQ_CODEC1 = 5;`
`BCM2835_IRQ_CODEC2 = 6;`
JPEG
`BCM2835_IRQ_JPEG = 7;`	Also available as IRQ 74 in the IRQ_basic_pending register
ISP
`BCM2835_IRQ_ISP = 8;`
USB (Synopsys DesignWare Hi-Speed USB 2.0 On-The-Go Controller)
`BCM2835_IRQ_USB = 9;`	Also available as IRQ 75 in the IRQ_basic_pending register
3D
`BCM2835_IRQ_3D = 10;`	Also available as IRQ 76 in the IRQ_basic_pending register
Transposer
`BCM2835_IRQ_TRANSPOSER = 11;`
Multicore Sync
`BCM2835_IRQ_MULTICORESYNC0 = 12;`
`BCM2835_IRQ_MULTICORESYNC1 = 13;`
`BCM2835_IRQ_MULTICORESYNC2 = 14;`
`BCM2835_IRQ_MULTICORESYNC3 = 15;`
DMA
`BCM2835_IRQ_DMA0 = 16;`
`BCM2835_IRQ_DMA1 = 17;`
`BCM2835_IRQ_DMA2 = 18;`	Also available as IRQ 77 in the IRQ_basic_pending register
`BCM2835_IRQ_DMA3 = 19;`	Also available as IRQ 78 in the IRQ_basic_pending register
`BCM2835_IRQ_DMA4 = 20;`
`BCM2835_IRQ_DMA5 = 21;`
`BCM2835_IRQ_DMA6 = 22;`
`BCM2835_IRQ_DMA7 = 23;`
`BCM2835_IRQ_DMA8 = 24;`
`BCM2835_IRQ_DMA9 = 25;`
`BCM2835_IRQ_DMA10 = 26;`
`BCM2835_IRQ_DMA11_14 = 27;`	BCM2835_IRQ_DMA11 This IRQ is actually shared between DMA channels 11, 12, 13 and 14
`BCM2835_IRQ_DMA_ALL = 28;`	BCM2835_IRQ_DMA12 This IRQ is triggered by any DMA channel (all channels interrupt to allow DMA FIQ)
AUX (UART1, SPI1 and SPI2)
`BCM2835_IRQ_AUX = 29;`
ARM
`BCM2835_IRQ_ARM = 30;`
GPUDMA
`BCM2835_IRQ_GPUDMA = 31;`
IRQs 32 to 63 appear in the IRQ_pending_2 register

Hostport
`BCM2835_IRQ_HOSTPORT = 32;`
Videoscaler
`BCM2835_IRQ_VIDEOSCALER = 33;`
CCP2TX
`BCM2835_IRQ_CCP2TX = 34;`
SDC
`BCM2835_IRQ_SDC = 35;`
DSI0
`BCM2835_IRQ_DSI0 = 36;`
AVE
`BCM2835_IRQ_AVE = 37;`
CAM
`BCM2835_IRQ_CAM0 = 38;`
`BCM2835_IRQ_CAM1 = 39;`
HDMI
`BCM2835_IRQ_HDMI0 = 40;`
`BCM2835_IRQ_HDMI1 = 41;`
Pixelvalve
`BCM2835_IRQ_PIXELVALVE1 = 42;`
I2C/SPI Slave
`BCM2835_IRQ_I2CSPI = 43;`
DSI1
`BCM2835_IRQ_DSI1 = 44;`
PWA
`BCM2835_IRQ_PWA0 = 45;`
`BCM2835_IRQ_PWA1 = 46;`
CPR
`BCM2835_IRQ_CPR = 47;`
SMI
`BCM2835_IRQ_SMI = 48;`
GPIO
`BCM2835_IRQ_GPIO_0 = 49;`	Bank0
`BCM2835_IRQ_GPIO_1 = 50;`	Bank1
`BCM2835_IRQ_GPIO_2 = 51;`	Bank2 (Non existent in BCM2835)
`BCM2835_IRQ_GPIO_ALL = 52;`	BCM2835_IRQ_GPIO_3 Any Bank (all banks interrupt to allow GPIO FIQ)
I2C
`BCM2835_IRQ_I2C = 53;`	Also available as IRQ 79 in the IRQ_basic_pending register
SPI
`BCM2835_IRQ_SPI = 54;`	Also available as IRQ 80 in the IRQ_basic_pending register
I2S PCM sound
`BCM2835_IRQ_I2SPCM = 55;`	Also available as IRQ 81 in the IRQ_basic_pending register
SDHOST
`BCM2835_IRQ_SDHOST = 56;`	Also available as IRQ 82 in the IRQ_basic_pending register
PL011 UART
`BCM2835_IRQ_PL011 = 57;`	Also available as IRQ 83 in the IRQ_basic_pending register
Slimbus
`BCM2835_IRQ_SLIMBUS = 58;`
VEC
`BCM2835_IRQ_VEC = 59;`
CPG
`BCM2835_IRQ_CPG = 60;`
RNG
`BCM2835_IRQ_RNG = 61;`
SD card host controller (EMMC)
`BCM2835_IRQ_SDHCI = 62;`	Also available as IRQ 84 in the IRQ_basic_pending register
AVSPMON
`BCM2835_IRQ_AVSPMON = 63;`
IRQs 64 to 84 appear in the IRQ_basic_pending register

ARM Timer
`BCM2835_IRQ_ARM_TIMER = 64;`	ARM IRQ 0
ARM Mailbox
`BCM2835_IRQ_ARM_MAILBOX = 65;`	ARM IRQ 1
ARM Doorbell
`BCM2835_IRQ_ARM_DOORBELL0 = 66;`	ARM IRQ 2
`BCM2835_IRQ_ARM_DOORBELL1 = 67;`	ARM IRQ 3
ARM GPU Halted
`BCM2835_IRQ_ARM_GPU0HALTED = 68;`	ARM IRQ 4
`BCM2835_IRQ_ARM_GPU1HALTED = 69;`	ARM IRQ 5
ARM Illegal Access
`BCM2835_IRQ_ARM_ILLEGALTYPE0 = 70;`	ARM IRQ 6
`BCM2835_IRQ_ARM_ILLEGALTYPE1 = 71;`	ARM IRQ 7
ARM Pending
`BCM2835_IRQ_ARM_PENDING0 = 72;`	ARM IRQ 8
`BCM2835_IRQ_ARM_PENDING1 = 73;`	ARM IRQ 9
ARM JPEG
`BCM2835_IRQ_ARM_JPEG = 74;`	ARM IRQ 10
ARM USB
`BCM2835_IRQ_ARM_USB = 75;`	ARM IRQ 11
ARM 3D
`BCM2835_IRQ_ARM_3D = 76;`	ARM IRQ 12
ARM DMA
`BCM2835_IRQ_ARM_DMA2 = 77;`	ARM IRQ 13
`BCM2835_IRQ_ARM_DMA3 = 78;`	ARM IRQ 14
ARM I2C
`BCM2835_IRQ_ARM_I2C = 79;`	ARM IRQ 15
ARM SPI
`BCM2835_IRQ_ARM_SPI = 80;`	ARM IRQ 16
ARM I2SPCM
`BCM2835_IRQ_ARM_I2SPCM = 81;`	ARM IRQ 17
ARM SDHOST
`BCM2835_IRQ_ARM_SDHOST = 82;`	ARM IRQ 18
ARM PL011 UART
`BCM2835_IRQ_ARM_PL011 = 83;`	ARM IRQ 19
ARM SDHCI
`BCM2835_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)
`BCM2835_GPU_IRQ_COUNT = 64;`
Number of ARM specific IRQs (These correspond to IRQs that show up in the first 8 bits of IRQ_basic_pending)
`BCM2835_ARM_IRQ_COUNT = 32;`	Previously 8
Total number of IRQs available
`BCM2835_IRQ_COUNT = BCM2835_GPU_IRQ_COUNT + BCM2835_ARM_IRQ_COUNT;`	72
Total number of FIQs available
`BCM2835_FIQ_COUNT = 1;`

BCM2835 system timer frequency BCM2835_SYSTEM_TIMER_*

`BCM2835_SYSTEM_TIMER_FREQUENCY = 1000000;`	Default clock frequency of the BCM2835 System Timer (1MHz)

System Timer Control/Status register bits (See Section 12)
`BCM2835_SYSTEM_TIMER_CS_0 = (1 shl 0);`	Already used by the VideoCore GPU (Do not use)
`BCM2835_SYSTEM_TIMER_CS_1 = (1 shl 1);`
`BCM2835_SYSTEM_TIMER_CS_2 = (1 shl 2);`	Already used by the VideoCore GPU (Do not use)
`BCM2835_SYSTEM_TIMER_CS_3 = (1 shl 3);`

BCM2835 DMA control and status BCM2835_DMA_CS_*

See Section 4

`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_DMA_CS_PAUSED = (1 shl 4);`	DMA Paused State (Indicates if the DMA is currently paused and not transferring data)
`BCM2835_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)
`BCM2835_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
`BCM2835_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
`BCM2835_DMA_CS_PRIORITY = ($F shl 16);`	AXI Priority Level (Sets the priority of normal AXI bus transactions. Zero is the lowest priority)
`BCM2835_DMA_CS_PANIC_PRIORITY = ($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
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)

`BCM2835_DMA_CS_PRIORITY_DEFAULT = 0;`

BCM2835 DMA transfer information BCM2835_DMA_TI_*

See Section 4

`BCM2835_DMA_TI_INTEN = (1 shl 0);`	Interrupt Enable (1 = Generate an interrupt when the transfer described by the current Control Block completes)
`BCM2835_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
`BCM2835_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)
`BCM2835_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)
`BCM2835_DMA_TI_DEST_WIDTH = (1 shl 5);`	Destination Transfer Width (1 = Use 128-bit destination write width. 0 = Use 32-bit destination write width)
`BCM2835_DMA_TI_DEST_DREQ = (1 shl 6);`	Control Destination Writes with DREQ (1 = The DREQ selected by PERMAP will gate the destination writes)
`BCM2835_DMA_TI_DEST_IGNORE = (1 shl 7);`	Ignore Writes (1 = Do not perform destination writes. 0 = Write data to destination)
`BCM2835_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)
`BCM2835_DMA_TI_SRC_WIDTH = (1 shl 9);`	Source Transfer Width (1 = Use 128-bit source read width. 0 = Use 32-bit source read width)
`BCM2835_DMA_TI_SRC_DREQ = (1 shl 10);`	Control Source Reads with DREQ (1 = The DREQ selected by PERMAP will gate the source reads)
`BCM2835_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)
`BCM2835_DMA_TI_BURST_LENGTH = ($F shl 12);`	Burst Transfer Length (Indicates the burst length of the DMA transfers)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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: BCM2835_DMA_TI_2DMODE, BCM2835_DMA_TI_DEST_IGNORE, BCM2835_DMA_TI_SRC_IGNORE and BCM2835_DMA_TI_NO_WIDE_BURSTS not available on DMA Lite channels

`BCM2835_DMA_TI_PERMAP_SHIFT = 16;`
`BCM2835_DMA_TI_BURST_LENGTH_SHIFT = 12;`

`BCM2835_DMA_TI_BURST_LENGTH_DEFAULT = 0;`

BCM2835 DMA transfer length BCM2835_DMA_TXFR_LEN_*

See Section 4

`BCM2835_DMA_TXFR_LEN_XLENGTH = ($FFFF shl 0);`	Transfer Length in bytes
`BCM2835_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: BCM2835_DMA_TXFR_LEN_YLENGTH not available on DMA Lite channels

BCM2835 DMA 2D stride BCM2835_DMA_STRIDE_*

See Section 4

`BCM2835_DMA_STRIDE_S_STRIDE = ($FFFF shl 0);`	Destination Stride (2D Mode) (Signed (2 s complement) byte increment to apply to the destination address at the end of each row in 2D mode)
`BCM2835_DMA_STRIDE_D_STRIDE = ($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: BCM2835_DMA_STRIDE_S_STRIDE and BCM2835_DMA_STRIDE_D_STRIDE not available on DMA Lite channels

BCM2835 DMA debug BCM2835_DMA_DEBUG_*

See Section 4

`BCM2835_DMA_DEBUG_READ_LAST_NOT_SET_ERROR = (1 shl 0);`	Read Last Not Set Error
`BCM2835_DMA_DEBUG_FIFO_ERROR = (1 shl 1);`	Fifo Error
`BCM2835_DMA_DEBUG_READ_ERROR = (1 shl 2);`	Slave Read Response Error
Bit 3 Reserved - Write as 0, read as don't care
`BCM2835_DMA_DEBUG_OUTSTANDING_WRITES = ($F shl 4);`	DMA Outstanding Writes Counter
`BCM2835_DMA_DEBUG_DMA_ID = ($FF shl 8);`	DMA Id
`BCM2835_DMA_DEBUG_DMA_STATE = ($1FF shl 16);`	DMA State Machine State
`BCM2835_DMA_DEBUG_VERSION = (7 shl 25);`	DMA Version
`BCM2835_DMA_DEBUG_LITE = (1 shl 28);`	DMA Lite
Bits 29:31 Reserved - Write as 0, read as don't care

BCM2835 DMA engine interrupt status BCM2835_DMA_INT_STATUS_*

See Section 4

`BCM2835_DMA_INT_STATUS_0 = (1 shl 0);`
`BCM2835_DMA_INT_STATUS_1 = (1 shl 1);`
`BCM2835_DMA_INT_STATUS_2 = (1 shl 2);`
`BCM2835_DMA_INT_STATUS_3 = (1 shl 3);`
`BCM2835_DMA_INT_STATUS_4 = (1 shl 4);`
`BCM2835_DMA_INT_STATUS_5 = (1 shl 5);`
`BCM2835_DMA_INT_STATUS_6 = (1 shl 6);`
`BCM2835_DMA_INT_STATUS_7 = (1 shl 7);`
`BCM2835_DMA_INT_STATUS_8 = (1 shl 8);`
`BCM2835_DMA_INT_STATUS_9 = (1 shl 9);`
`BCM2835_DMA_INT_STATUS_10 = (1 shl 10);`
`BCM2835_DMA_INT_STATUS_11 = (1 shl 11);`
`BCM2835_DMA_INT_STATUS_12 = (1 shl 12);`
`BCM2835_DMA_INT_STATUS_13 = (1 shl 13);`
`BCM2835_DMA_INT_STATUS_14 = (1 shl 14);`
`BCM2835_DMA_INT_STATUS_15 = (1 shl 15);`

BCM2835 DMA engine enable BCM2835_DMA_ENABLE_*

See Section 4

`BCM2835_DMA_ENABLE_0 = (1 shl 0);`
`BCM2835_DMA_ENABLE_1 = (1 shl 1);`
`BCM2835_DMA_ENABLE_2 = (1 shl 2);`
`BCM2835_DMA_ENABLE_3 = (1 shl 3);`
`BCM2835_DMA_ENABLE_4 = (1 shl 4);`
`BCM2835_DMA_ENABLE_5 = (1 shl 5);`
`BCM2835_DMA_ENABLE_6 = (1 shl 6);`
`BCM2835_DMA_ENABLE_7 = (1 shl 7);`
`BCM2835_DMA_ENABLE_8 = (1 shl 8);`
`BCM2835_DMA_ENABLE_9 = (1 shl 9);`
`BCM2835_DMA_ENABLE_10 = (1 shl 10);`
`BCM2835_DMA_ENABLE_11 = (1 shl 11);`
`BCM2835_DMA_ENABLE_12 = (1 shl 12);`
`BCM2835_DMA_ENABLE_13 = (1 shl 13);`
`BCM2835_DMA_ENABLE_14 = (1 shl 14);`

BCM2835 DMA engine DREQ peripheral BCM2835_DMA_DREQ_*

See Section 4

`BCM2835_DMA_DREQ_NONE = 0;`
`BCM2835_DMA_DREQ_DSI0 = 1;`
`BCM2835_DMA_DREQ_PCMTX = 2;`
`BCM2835_DMA_DREQ_PCMRX = 3;`
`BCM2835_DMA_DREQ_SMI = 4;`
`BCM2835_DMA_DREQ_PWM = 5;`
`BCM2835_DMA_DREQ_SPITX = 6;`
`BCM2835_DMA_DREQ_SPIRX = 7;`
`BCM2835_DMA_DREQ_BSCSPITX = 8;`
`BCM2835_DMA_DREQ_BSCSPIRX = 9;`
`BCM2835_DMA_DREQ_RESERVED1 = 10;`
`BCM2835_DMA_DREQ_EMMC = 11;`
`BCM2835_DMA_DREQ_UARTTX = 12;`
`BCM2835_DMA_DREQ_SDHOST = 13;`
`BCM2835_DMA_DREQ_UARTRX = 14;`
`BCM2835_DMA_DREQ_DSI1 = 15;`
`BCM2835_DMA_DREQ_SLIMBUS_MCTX = 16;`
`BCM2835_DMA_DREQ_HDMI = 17;`
`BCM2835_DMA_DREQ_SLIMBUS_MCRX = 18;`
`BCM2835_DMA_DREQ_SLIMBUS_DC0 = 19;`
`BCM2835_DMA_DREQ_SLIMBUS_DC1 = 20;`
`BCM2835_DMA_DREQ_SLIMBUS_DC2 = 21;`
`BCM2835_DMA_DREQ_SLIMBUS_DC3 = 22;`
`BCM2835_DMA_DREQ_SLIMBUS_DC4 = 23;`
`BCM2835_DMA_DREQ_SCALER_FIFO0 = 24;`
`BCM2835_DMA_DREQ_SCALER_FIFO1 = 25;`
`BCM2835_DMA_DREQ_SCALER_FIFO2 = 26;`
`BCM2835_DMA_DREQ_SLIMBUS_DC5 = 27;`
`BCM2835_DMA_DREQ_SLIMBUS_DC6 = 28;`
`BCM2835_DMA_DREQ_SLIMBUS_DC7 = 29;`
`BCM2835_DMA_DREQ_SLIMBUS_DC8 = 30;`
`BCM2835_DMA_DREQ_SLIMBUS_DC9 = 31;`

BCM2835 BSC (I2C0/1/2) control BCM2835_BSC_C_*

See Section 3.2

`BCM2835_BSC_C_I2CEN = (1 shl 15);`	I2C Enable (0 = BSC controller is disabled/1 = BSC controller is enabled)
`BCM2835_BSC_C_INTR = (1 shl 10);`	INTR Interrupt on RX (0 = Don't generate interrupts on RXR condition/1 = Generate interrupt while RXR = 1)
`BCM2835_BSC_C_INTT = (1 shl 9);`	INTT Interrupt on TX (0 = Don't generate interrupts on TXW condition/1 = Generate interrupt while TXW = 1)
`BCM2835_BSC_C_INTD = (1 shl 8);`	INTD Interrupt on DONE (0 = Don't generate interrupts on DONE condition/1 = Generate interrupt while DONE = 1)
`BCM2835_BSC_C_ST = (1 shl 7);`	ST Start Transfer (0 = No action/1 = Start a new transfer. One shot operation. Read back as 0)
`BCM2835_BSC_C_CLEAR = (1 shl 5);`	CLEAR FIFO Clear (00 = No action/x1 = Clear FIFO. One shot operation/1x = Clear FIFO. One shot operation)
`BCM2835_BSC_C_READ = (1 shl 0);`	READ Read Transfer (0 = Write Packet Transfer/1 = Read Packet Transfer)

BCM2835 BSC (I2C0/1/2) status BCM2835_BSC_S_*

See Section 3.2

`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_BSC_S_DONE = (1 shl 1);`	DONE Transfer Done (0 = Transfer not completed. 1 = Transfer complete. Cleared by writing 1 to the field)
`BCM2835_BSC_S_TA = (1 shl 0);`	TA Transfer Active (0 = Transfer not active. 1 = Transfer active)

BCM2835 BSC (I2C0/1/2) data length BCM2835_BSC_DLEN_*

See Section 3.2

`BCM2835_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)

BCM2835 BSC (I2C0/1/2) slave address BCM2835_BSC_A_*

See Section 3.2

`BCM2835_BSC_A_MASK = $7F;`	Slave Address

BCM2835 BSC (I2C0/1/2) data FIFO BCM2835_BSC_FIFO_*

See Section 3.2

`BCM2835_BSC_FIFO_MASK = $FF;`	Writes to the register write transmit data to the FIFO. Reads from register reads received data from the FIFO
`BCM2835_BSC_FIFO_SIZE = 16;`

BCM2835 BSC (I2C0/1/2) clock divider BCM2835_BSC_CDIV_*

See Section 3.2

`BCM2835_BSC_CDIV_MASK = $FFFF;`	Clock Divider (SCL = core clock/CDIV) (CDIV is always rounded down to an even number)

BCM2835 BSC (I2C0/1/2) data delay BCM2835_BSC_DEL_*

See Section 3.2

`BCM2835_BSC_DEL_FEDL_MASK = ($FFFF shl 16);`	FEDL Falling Edge Delay (Number of core clock cycles to wait after the falling edge of SCL before outputting next bit of data)
`BCM2835_BSC_DEL_REDL_MASK = ($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)
`BCM2835_BSC_DEL_FEDL_SHIFT = 16;`
`BCM2835_BSC_DEL_REDL_SHIFT = 0;`

BCM2835 BSC (I2C0/1/2) clock stretch timeout BCM2835_BSC_CLKT_TOUT_*

See Section 3.2

`BCM2835_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)

BCM2835 SPI0 BCM2835_SPI0_*

See Section 10.5

`BCM2835_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)
`BCM2835_SPI0_CS_DMA_LEN = (1 shl 24);`	Enable DMA mode in Lossi mode
`BCM2835_SPI0_CS_CSPOL2 = (1 shl 23);`	Chip Select 2 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2835_SPI0_CS_CSPOL1 = (1 shl 22);`	Chip Select 1 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2835_SPI0_CS_CSPOL0 = (1 shl 21);`	Chip Select 0 Polarity (0 = Chip select is active low/1 = Chip select is active high)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_SPI0_CS_RXD = (1 shl 17);`	RXD RX FIFO contains Data (0 = RX FIFO is empty/1 = RX FIFO contains at least 1 byte)
`BCM2835_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)
`BCM2835_SPI0_CS_TE_EN = (1 shl 15);`	Unused
`BCM2835_SPI0_CS_LMONO = (1 shl 14);`	Unused
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_SPI0_CS_INTD = (1 shl 9);`	INTD Interrupt on Done (0 = Don't generate interrupt on transfer complete/1 = Generate interrupt when DONE = 1)
`BCM2835_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
`BCM2835_SPI0_CS_TA = (1 shl 7);`	Transfer Active (0 = Transfer not active/1 = Transfer active)
`BCM2835_SPI0_CS_CSPOL = (1 shl 6);`	Chip Select Polarity (0 = Chip select lines are active low/1 = Chip select lines are active high
`BCM2835_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)
`BCM2835_SPI0_CS_CLEAR_TX = (1 shl 4);`	As above
`BCM2835_SPI0_CS_CPOL = (1 shl 3);`	Clock Polarity (0 = Rest state of clock = low/1 = Rest state of clock = high)
`BCM2835_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)
`BCM2835_SPI0_CS_CS_0 = (0 shl 0);`	Chip Select (00 = Chip select 0/01 = Chip select 1/10 = Chip select 2/11 = Reserved
`BCM2835_SPI0_CS_CS_1 = (1 shl 0);`	As above
`BCM2835_SPI0_CS_CS_2 = (2 shl 0);`	As above

`BCM2835_SPI0_CS_CS_MASK = (3 shl 0);`

`BCM2835_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 FIFOs
`BCM2835_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

`BCM2835_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

`BCM2835_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)

`BCM2835_SPI0_LTOH_TOH = $0000000F;`	This sets the Output Hold delay in APB clocks (A value of 0 causes a 1 clock delay)

`BCM2835_SPI0_DC_RPANIC = ($FF shl 24);`	DMA Read Panic Threshold (Generate the Panic signal to the RX DMA engine whenever the RX FIFO level is greater than this amount)
`BCM2835_SPI0_DC_RDREQ = ($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 thetransfer has finished but the RXFIFO isn't empty)
`BCM2835_SPI0_DC_TPANIC = ($FF shl 8);`	DMA Write Panic Threshold (Generate the Panic signal to the TX DMA engine whenever the TX FIFO level is less than or equal to this amount)
`BCM2835_SPI0_DC_TDREQ = ($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)

BCM2835 PWM control BCM2835_PWM_CTL_*

See Section 9.6

`BCM2835_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
`BCM2835_PWM_CTL_USEF2 = (1 shl 13);`	Channel 2 Use Fifo (0: Data register is transmitted/1: Fifo is used for transmission)
`BCM2835_PWM_CTL_POLA2 = (1 shl 12);`	Channel 2 Polarity (0 : 0=low 1=high/1: 1=low 0=high)
`BCM2835_PWM_CTL_SBIT2 = (1 shl 11);`	Channel 2 Silence Bit (Defines the state of the output when no transmission takes place)
`BCM2835_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)
`BCM2835_PWM_CTL_MODE2 = (1 shl 9);`	Channel 2 Mode (0: PWM mode/1: Serialiser mode)
`BCM2835_PWM_CTL_PWEN2 = (1 shl 8);`	Channel 2 Enable (0: Channel is disabled/1: Channel is enabled)
`BCM2835_PWM_CTL_MSEN1 = (1 shl 7);`	Channel 1 M/S Enable (0: PWM algorithm is used/1: M/S transmission is used)
`BCM2835_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)
`BCM2835_PWM_CTL_USEF1 = (1 shl 5);`	Channel 1 Use Fifo (0: Data register is transmitted/1: Fifo is used for transmission)
`BCM2835_PWM_CTL_POLA1 = (1 shl 4);`	Channel 1 Polarity (0 : 0=low 1=high/1: 1=low 0=high)
`BCM2835_PWM_CTL_SBIT1 = (1 shl 3);`	Channel 1 Silence Bit (Defines the state of the output when no transmission takes place)
`BCM2835_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)
`BCM2835_PWM_CTL_MODE1 = (1 shl 1);`	Channel 1 Mode (0: PWM mode/1: Serialiser mode)
`BCM2835_PWM_CTL_PWEN1 = (1 shl 0);`	Channel 1 Enable (0: Channel is disabled/1: Channel is enabled)

BCM2835 PWM status BCM2835_PWM_STA_*

See Section 9.6

`BCM2835_PWM_STA_STA4 = (1 shl 12);`	Channel 4 State
`BCM2835_PWM_STA_STA3 = (1 shl 11);`	Channel 3 State
`BCM2835_PWM_STA_STA2 = (1 shl 10);`	Channel 2 State
`BCM2835_PWM_STA_STA1 = (1 shl 9);`	Channel 1 State
`BCM2835_PWM_STA_BERR = (1 shl 8);`	Bus Error Flag
`BCM2835_PWM_STA_GAPO4 = (1 shl 7);`	Channel 4 Gap Occurred Flag
`BCM2835_PWM_STA_GAPO3 = (1 shl 6);`	Channel 3 Gap Occurred Flag
`BCM2835_PWM_STA_GAPO2 = (1 shl 5);`	Channel 2 Gap Occurred Flag
`BCM2835_PWM_STA_GAPO1 = (1 shl 4);`	Channel 1 Gap Occurred Flag
`BCM2835_PWM_STA_RERR1 = (1 shl 3);`	Fifo Read Error Flag
`BCM2835_PWM_STA_WERR1 = (1 shl 2);`	Fifo Write Error Flag
`BCM2835_PWM_STA_EMPT1 = (1 shl 1);`	Fifo Empty Flag
`BCM2835_PWM_STA_FULL1 = (1 shl 0);`	Fifo Full Flag

BCM2835 PWM DMA configuration CM2835_PWM_DMAC_*

See Section 9.6

`BCM2835_PWM_DMAC_ENAB = (1 shl 31);`	DMA Enable (0: DMA disabled/1: DMA enabled)
`BCM2835_PWM_DMAC_PANIC = ($FF shl 8);`	DMA Threshold for PANIC signal (Default: 0x7)
`BCM2835_PWM_DMAC_DREQ = ($FF shl 0);`	DMA Threshold for DREQ signal (Default: 0x7)

BCM2835 PWM BCM2835_PWM_*

`BCM2835_PWM_CTL = $00000000;`	PWM Control
`BCM2835_PWM_STA = $00000004;`	PWM Status
`BCM2835_PWM_DMAC = $00000008;`	PWM DMA Configuration
`BCM2835_PWM_RNG1 = $00000010;`	PWM Channel 1 Range
`BCM2835_PWM_DAT1 = $00000014;`	PWM Channel 1 Data
`BCM2835_PWM_FIF1 = $00000018;`	PWM FIFO Input
`BCM2835_PWM_RNG2 = $00000020;`	PWM Channel 2 Range
`BCM2835_PWM_DAT2 = $00000024;`	PWM Channel 2 Data

BCM2835 PL011 UART data BCM2835_PL011_DR_*

See Section 13.4

`BCM2835_PL011_DR_OE = (1 shl 11);`	Overrun error
`BCM2835_PL011_DR_BE = (1 shl 10);`	Break error
`BCM2835_PL011_DR_PE = (1 shl 9);`	Parity error
`BCM2835_PL011_DR_FE = (1 shl 8);`	Framing error
`BCM2835_PL011_DR_DATA = ($FF shl 0);`	Receive/Transmit data
`BCM2835_PL011_DR_ERROR = BCM2835_PL011_DR_OE or BCM2835_PL011_DR_BE or BCM2835_PL011_DR_PE or BCM2835_PL011_DR_FE;`

BCM2835 PL011 UART receive status/error clear BCM2835_PL011_RSRECR_*

See Section 13.4

`BCM2835_PL011_RSRECR_OE = (1 shl 3);`	Overrun error
`BCM2835_PL011_RSRECR_BE = (1 shl 2);`	Break error
`BCM2835_PL011_RSRECR_PE = (1 shl 1);`	Parity error
`BCM2835_PL011_RSRECR_FE = (1 shl 0);`	Framing error

BCM2835 PL011 UART flag BCM2835_PL011_FR_*

See Section13.4

`BCM2835_PL011_FR_RI = (1 shl 8);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_FR_TXFE = (1 shl 7);`	Transmit FIFO empty
`BCM2835_PL011_FR_RXFF = (1 shl 6);`	Receive FIFO full
`BCM2835_PL011_FR_TXFF = (1 shl 5);`	Transmit FIFO full
`BCM2835_PL011_FR_RXFE = (1 shl 4);`	Receive FIFO empty
`BCM2835_PL011_FR_BUSY = (1 shl 3);`	UART busy
`BCM2835_PL011_FR_DCD = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_FR_DSR = (1 shl 1);`	Unsupported, write zero, read as don't care
`BCM2835_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)

BCM2835 PL011 UART IrDA

See Section 13.4

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

BCM2835 PL011 UART integer baud rate divisor BCM2835_PL011_IBRD_*

See Section 13.4

`BCM2835_PL011_IBRD_MASK = ($FFFF shl 0);`

BCM2835 PL011 UART fractional baud rate divisor BCM2835_PL011_FBRD_*

See Section 13.4

`BCM2835_PL011_FBRD_MASK = ($3F shl 0);`

BCM2835 PL011 UART line control BCM2835_PL011_LCRH_*

See Section 13.4

`BCM2835_PL011_LCRH_SPS = (1 shl 7);`	Stick parity select
`BCM2835_PL011_LCRH_WLEN = (3 shl 5);`	Word length
`BCM2835_PL011_LCRH_WLEN8 = (3 shl 5);`	8 bits
`BCM2835_PL011_LCRH_WLEN7 = (2 shl 5);`	7 bits
`BCM2835_PL011_LCRH_WLEN6 = (1 shl 5);`	6 bits
`BCM2835_PL011_LCRH_WLEN5 = (0 shl 5);`	5 bits
`BCM2835_PL011_LCRH_FEN = (1 shl 4);`	Enable FIFOs
`BCM2835_PL011_LCRH_STP2 = (1 shl 3);`	Two stop bits select
`BCM2835_PL011_LCRH_EPS = (1 shl 2);`	Even parity select (0 = odd parity/1 = even parity)
`BCM2835_PL011_LCRH_PEN = (1 shl 1);`	Parity enable
`BCM2835_PL011_LCRH_BRK = (1 shl 0);`	Send break

BCM2835 PL011 UART control BCM2835_PL011_CR_*

See Section 13.4

`BCM2835_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)
`BCM2835_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)
`BCM2835_PL011_CR_OUT2 = (1 shl 13);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_CR_OUT1 = (1 shl 12);`	Unsupported, write zero, read as don't care
`BCM2835_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)
`BCM2835_PL011_CR_DTR = (1 shl 10);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_CR_RXE = (1 shl 9);`	Receive enable
`BCM2835_PL011_CR_TXE = (1 shl 8);`	Transmit enable
`BCM2835_PL011_CR_LBE = (1 shl 7);`	Loopback enable
Bits 6:3 Reserved - Write as 0, read as don't care
`BCM2835_PL011_CR_SIRLP = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_CR_SIREN = (1 shl 1);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_CR_UARTEN = (1 shl 0);`	UART enable

BCM2835 PL011 UART interrupt FIFO level select BCM2835_PL011_IFLS_*

See Section 13.4

`BCM2835_PL011_IFLS_RXIFPSEL = (7 shl 9);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_IFLS_TXIFPSEL = (7 shl 6);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_IFLS_RXIFLSEL = (7 shl 3);`	Receive interrupt FIFO level select
`BCM2835_PL011_IFLS_RXIFLSEL1_8 = (0 shl 3);`	b000 = Receive FIFO becomes >= 1/8 full
`BCM2835_PL011_IFLS_RXIFLSEL1_4 = (1 shl 3);`	b001 = Receive FIFO becomes >= 1/4 full
`BCM2835_PL011_IFLS_RXIFLSEL1_2 = (2 shl 3);`	b010 = Receive FIFO becomes >= 1/2 full
`BCM2835_PL011_IFLS_RXIFLSEL3_4 = (3 shl 3);`	b011 = Receive FIFO becomes >= 3/4 full
`BCM2835_PL011_IFLS_RXIFLSEL7_8 = (4 shl 3);`	b100 = Receive FIFO becomes >= 7/8 full
`BCM2835_PL011_IFLS_TXIFLSEL = (7 shl 0);`	Transmit interrupt FIFO level select
`BCM2835_PL011_IFLS_TXIFLSEL1_8 = (0 shl 0);`	b000 = Transmit FIFO becomes <= 1/8 full
`BCM2835_PL011_IFLS_TXIFLSEL1_4 = (1 shl 0);`	b001 = Transmit FIFO becomes <= 1/4 full
`BCM2835_PL011_IFLS_TXIFLSEL1_2 = (2 shl 0);`	b010 = Transmit FIFO becomes <= 1/2 full
`BCM2835_PL011_IFLS_TXIFLSEL3_4 = (3 shl 0);`	b011 = Transmit FIFO becomes <= 3/4 full
`BCM2835_PL011_IFLS_TXIFLSEL7_8 = (4 shl 0);`	b100 = Transmit FIFO becomes <= 7/8 full

BCM2835 PL011 UART interrupt mask set/clear BCM2835_PL011_IMSC_*

See Section 13.4

`BCM2835_PL011_IMSC_OEIM = (1 shl 10);`	Overrun error interrupt mask
`BCM2835_PL011_IMSC_BEIM = (1 shl 9);`	Break error interrupt mask
`BCM2835_PL011_IMSC_PEIM = (1 shl 8);`	Parity error interrupt mask
`BCM2835_PL011_IMSC_FEIM = (1 shl 7);`	Framing error interrupt mask
`BCM2835_PL011_IMSC_RTIM = (1 shl 6);`	Receive timeout interrupt mask
`BCM2835_PL011_IMSC_TXIM = (1 shl 5);`	Transmit interrupt mask
`BCM2835_PL011_IMSC_RXIM = (1 shl 4);`	Receive interrupt mask
`BCM2835_PL011_IMSC_DSRMIM = (1 shl 3);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_IMSC_DCDMIM = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_IMSC_CTSMIM = (1 shl 1);`	nUARTCTS modem interrupt mask
`BCM2835_PL011_IMSC_RIMIM = (1 shl 0);`	Unsupported, write zero, read as don't care

BCM2835 PL011 UART raw interrupt status BCM2835_PL011_RIS_*

See Section 13.4

`BCM2835_PL011_RIS_OERIS = (1 shl 10);`	Overrun error interrupt status
`BCM2835_PL011_RIS_BERIS = (1 shl 9);`	Break error interrupt status
`BCM2835_PL011_RIS_PERIS = (1 shl 8);`	Parity error interrupt status
`BCM2835_PL011_RIS_FERIS = (1 shl 7);`	Framing error interrupt status
`BCM2835_PL011_RIS_RTRIS = (1 shl 6);`	Receive timeout interrupt status
`BCM2835_PL011_RIS_TXRIS = (1 shl 5);`	Transmit interrupt status
`BCM2835_PL011_RIS_RXRIS = (1 shl 4);`	Receive interrupt status
`BCM2835_PL011_RIS_DSRMRIS = (1 shl 3);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_RIS_DCDMRIS = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_RIS_CTSMRIS = (1 shl 1);`	nUARTCTS modem interrupt status
`BCM2835_PL011_RIS_RIMRIS = (1 shl 0);`	Unsupported, write zero, read as don't care

BCM2835 PL011 UART masked interrupt status BCM2835_PL011_MIS_*

See Section 13.4

`BCM2835_PL011_MIS_OEMIS = (1 shl 10);`	Overrun error masked interrupt status
`BCM2835_PL011_MIS_BEMIS = (1 shl 9);`	Break error masked interrupt status
`BCM2835_PL011_MIS_PEMIS = (1 shl 8);`	Parity error masked interrupt status
`BCM2835_PL011_MIS_FEMIS = (1 shl 7);`	Framing error masked interrupt status
`BCM2835_PL011_MIS_RTMIS = (1 shl 6);`	Receive timeout masked interrupt status
`BCM2835_PL011_MIS_TXMIS = (1 shl 5);`	Transmit masked interrupt status
`BCM2835_PL011_MIS_RXMIS = (1 shl 4);`	Receive masked interrupt status
`BCM2835_PL011_MIS_DSRMMIS = (1 shl 3);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_MIS_DCDMMIS = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_MIS_CTSMMIS = (1 shl 1);`	nUARTCTS modem masked interrupt status
`BCM2835_PL011_MIS_RIMMIS = (1 shl 0);`	Unsupported, write zero, read as don't care

BCM2835 PL011 UART interrupt clear BCM2835_PL011_ICR_*

See Section 13.4

`BCM2835_PL011_ICR_OEIC = (1 shl 10);`	Overrun error interrupt clear
`BCM2835_PL011_ICR_BEIC = (1 shl 9);`	Break error interrupt clear
`BCM2835_PL011_ICR_PEIC = (1 shl 8);`	Parity error interrupt clear
`BCM2835_PL011_ICR_FEIC = (1 shl 7);`	Framing error interrupt clear
`BCM2835_PL011_ICR_RTIC = (1 shl 6);`	Receive timeout interrupt clear
`BCM2835_PL011_ICR_TXIC = (1 shl 5);`	Transmit interrupt clear
`BCM2835_PL011_ICR_RXIC = (1 shl 4);`	Receive interrupt clear
`BCM2835_PL011_ICR_DSRMIC = (1 shl 3);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_ICR_DCDMIC = (1 shl 2);`	Unsupported, write zero, read as don't care
`BCM2835_PL011_ICR_CTSMIC = (1 shl 1);`	nUARTCTS modem interrupt clear
`BCM2835_PL011_ICR_RIMIC = (1 shl 0);`	Unsupported, write zero, read as don't care

BCM2835 PL011 UART DMA control

See Section 13.4

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

BCM2835 ARM interrupt controller registers BCM2835_ARM_INTERRUPT_*

See Section 7.5

`BCM2835_ARM_INTERRUPT_BASIC_PENDING = $00000000;`	IRQ basic pending
`BCM2835_ARM_INTERRUPT_IRQ_PENDING1 = $00000004;`	IRQ pending 1
`BCM2835_ARM_INTERRUPT_IRQ_PENDING2 = $00000008;`	IRQ pending 2
`BCM2835_ARM_INTERRUPT_FIQ_CONTROL = $0000000C;`	FIQ control
`BCM2835_ARM_INTERRUPT_IRQ_ENABLE1 = $00000010;`	Enable IRQs 1
`BCM2835_ARM_INTERRUPT_IRQ_ENABLE2 = $00000014;`	Enable IRQs 2
`BCM2835_ARM_INTERRUPT_BASIC_ENABLE = $00000018;`	Enable Basic IRQs
`BCM2835_ARM_INTERRUPT_IRQ_DISABLE1 = $0000001C;`	Disable IRQs 1
`BCM2835_ARM_INTERRUPT_IRQ_DISABLE2 = $00000020;`	Disable IRQs 2
`BCM2835_ARM_INTERRUPT_BASIC_DISABLE = $00000024;`	Disable Basic IRQs

BCM2835 ARM interrupt controller register bits BCM2835_ARM_INTERRUPT_FIQ_*

See Section 7.5

`BCM2835_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)
`BCM2835_ARM_INTERRUPT_FIQ_SOURCE = ($7F shl 0);`	Select FIQ Source (0..127)

BCM2835 ARM timer BCM2835_ARM_TIMER_*

See Section 14.2

`BCM2835_ARM_TIMER_CONTROL_COUNTER_PRESCALE = ($FF shl 16);`	Free running counter pre-scaler (Freq is sys_clk/(prescale+1))
`BCM2835_ARM_TIMER_CONTROL_COUNTER_ENABLED = (1 shl 9);`	0 : Free running counter Disabled/1 : Free running counter Enabled
`BCM2835_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
`BCM2835_ARM_TIMER_CONTROL_TIMER_ENABLED = (1 shl 7);`	0 : Timer disabled/1 : Timer enabled
`BCM2835_ARM_TIMER_CONTROL_INT_ENABLED = (1 shl 5);`	0 : Timer interrupt disabled/1 : Timer interrupt enabled
`BCM2835_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
`BCM2835_ARM_TIMER_CONTROL_32BIT = (1 shl 1);`	0 : 16-bit counters/1 : 32-bit counter
`BCM2835_ARM_TIMER_CONTROL_ONESHOT = (1 shl 0);`	0 = wrapping mode (default)/1 = one-shot mode (Not supported by BCM2835)

`BCM2835_ARM_TIMER_RAW_IRQ_PENDING = (1 shl 0);`	0 : The interrupt pending bits is clear/1 : The interrupt pending bit is set

`BCM2835_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)

`BCM2835_ARM_TIMER_PREDIVIDER_MASK = ($3FF shl 0);`	Pre-divider value (timer_clock = apb_clock/(pre_divider+1))

BCM2835 power management, reset controller and watchdog BCM2835_PM_*

`BCM2835_PM_PASSWORD = $5A000000;`

`BCM2835_PM_RSTC_WRCFG_CLR = $FFFFFFCF;`
`BCM2835_PM_RSTC_WRCFG_SET = $00000030;`
`BCM2835_PM_RSTC_WRCFG_FULL_RESET = $00000020;`
`BCM2835_PM_RSTC_RESET = $00000102;`

`BCM2835_PM_RSTS_HADPOR_SET = $00001000;`
`BCM2835_PM_RSTS_HADSRH_SET = $00000400;`
`BCM2835_PM_RSTS_HADSRF_SET = $00000200;`
`BCM2835_PM_RSTS_HADSRQ_SET = $00000100;`
`BCM2835_PM_RSTS_HADWRH_SET = $00000040;`
`BCM2835_PM_RSTS_HADWRF_SET = $00000020;`
`BCM2835_PM_RSTS_HADWRQ_SET = $00000010;`
`BCM2835_PM_RSTS_HADDRH_SET = $00000004;`
`BCM2835_PM_RSTS_HADDRF_SET = $00000002;`
`BCM2835_PM_RSTS_HADDRQ_SET = $00000001;`

`BCM2835_PM_RSTS_RASPBERRYPI_HALT = $00000555;`	Special value to tell the Raspberry Pi firmware not to reboot, sets Boot Partition to 63 (0x3f).

`BCM2835_PM_WDOG_RESET = $00000000;`
`BCM2835_PM_WDOG_TIME_MASK = $000FFFFF;`

`BCM2835_PM_WDOG_TICKS_PER_SECOND = (1 shl 16);`
`BCM2835_PM_WDOG_TICKS_PER_MILLISECOND = (BCM2835_PM_WDOG_TICKS_PER_SECOND div 1000);`

BCM2835 random number generator BCM2835_RANDOM_*

`BCM2835_RANDOM_DISABLE = $00000000;`	Disable Random Number Generator
`BCM2835_RANDOM_ENABLE = $00000001;`	Enable Random Number Generator
`BCM2835_RANDOM_DOUBLE_SPEED = $00000002;`	Double Speed Mode (Less Random)

BCM2835 clock management BCM2835_CM_*

See Section 6

`BCM2835_CM_PASSWORD = $5A000000;`

BCM2835 clock manager control BCM2835_CM_CTL_*

See Section 6.3

`BCM2835_CM_CTL_MASH_0 = (0 shl 9);`	MASH control - 0 = integer division
`BCM2835_CM_CTL_MASH_1 = (1 shl 9);`	MASH control - 1 = 1-stage MASH (equivalent to non-MASH dividers)
`BCM2835_CM_CTL_MASH_2 = (2 shl 9);`	MASH control - 2 = 2-stage MASH
`BCM2835_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)
`BCM2835_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)
`BCM2835_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)
`BCM2835_CM_CTL_GATE = (1 shl 6);`	Unused
`BCM2835_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)
`BCM2835_CM_CTL_ENAB = (1 shl 4);`	Enable the clock generator

`BCM2835_CM_CTL_SRC_GND = (0 shl 0);`	Clock source - 0 Hz GND
`BCM2835_CM_CTL_SRC_OSC = (1 shl 0);`	Clock source - 19.2 MHz Oscillator
`BCM2835_CM_CTL_SRC_TESTDEBUG0 = (2 shl 0);`	Clock source - 0 Hz Testdebug0
`BCM2835_CM_CTL_SRC_TESTDEBUG1 = (3 shl 0);`	Clock source - 0 Hz Testdebug1
`BCM2835_CM_CTL_SRC_PLLA = (4 shl 0);`	Clock source - 0 Hz PLLA per
`BCM2835_CM_CTL_SRC_PLLC = (5 shl 0);`	Clock source - 1000 MHz PLLC per (changes with overclock settings)
`BCM2835_CM_CTL_SRC_PLLD = (6 shl 0);`	Clock source - 500 MHz PLLD per
`BCM2835_CM_CTL_SRC_HDMI = (7 shl 0);`	Clock source - 216 MHz HDMI auxiliary

BCM2835 clock manager divisor BCM2835_CM_DIV_*

See Section 6.3

`BCM2835_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)
`BCM2835_CM_DIV_FRAC_MASK = $00000FFF;`	Fractional part of divisor (To avoid lock-ups and glitches do not change this control while BUSY=1)

BCM2835 clock manager BCM2835_CM_*

`BCM2835_CM_GNRICCTL = $00000000;`	Generic Clock Control
`BCM2835_CM_GNRICDIV = $00000004;`	Generic Clock Divisor
`BCM2835_CM_VPUCTL = $00000008;`	VPU Clock Control
`BCM2835_CM_VPUDIV = $0000000C;`	VPU Clock Divisor
`BCM2835_CM_SYSCTL = $00000010;`	System Clock Control
`BCM2835_CM_SYSDIV = $00000014;`	System Clock Divisor
`BCM2835_CM_PERIACTL = $00000018;`	PERIA Clock Control
`BCM2835_CM_PERIADIV = $0000001C;`	PERIA Clock Divisor
`BCM2835_CM_PERIICTL = $00000020;`	PERII Clock Control
`BCM2835_CM_PERIIDIV = $00000024;`	PERII Clock Divisor
`BCM2835_CM_H264CTL = $00000028;`	H264 Clock Control
`BCM2835_CM_H264DIV = $0000002C;`	H264 Clock Divisor
`BCM2835_CM_ISPCTL = $00000030;`	ISP Clock Control
`BCM2835_CM_ISPDIV = $00000034;`	ISP Clock Divisor
`BCM2835_CM_V3DCTL = $00000038;`	V3D Clock Control
`BCM2835_CM_V3DDIV = $0000003C;`	V3D Clock Divisor
`BCM2835_CM_CAM0CTL = $00000040;`	Camera 0 Clock Control
`BCM2835_CM_CAM0DIV = $00000044;`	Camera 0 Clock Divisor
`BCM2835_CM_CAM1CTL = $00000048;`	Camera 1 Clock Control
`BCM2835_CM_CAM1DIV = $0000004C;`	Camera 1 Clock Divisor
`BCM2835_CM_CCP2CTL = $00000050;`	CCP2 Clock Control
`BCM2835_CM_CCP2DIV = $00000054;`	CCP2 Clock Divisor
`BCM2835_CM_DSI0ECTL = $00000058;`	DSI0E Clock Control
`BCM2835_CM_DSI0EDIV = $0000005C;`	DSI0E Clock Divisor
`BCM2835_CM_DSI0PCTL = $00000060;`	DSI0P Clock Control
`BCM2835_CM_DSI0PDIV = $00000064;`	DSI0P Clock Divisor
`BCM2835_CM_DPICTL = $00000068;`	DPI Clock Control
`BCM2835_CM_DPIDIV = $0000006C;`	DPI Clock Control
`BCM2835_CM_GP0CTL = $00000070;`	General Purpose 0 Clock Control
`BCM2835_CM_GP0DIV = $00000074;`	General Purpose 0 Clock Divisor
`BCM2835_CM_GP1CTL = $00000078;`	General Purpose 1 Clock Control
`BCM2835_CM_GP1DIV = $0000007C;`	General Purpose 1 Clock Divisor
`BCM2835_CM_GP2CTL = $00000080;`	General Purpose 2 Clock Control
`BCM2835_CM_GP2DIV = $00000084;`	General Purpose 2 Clock Divisor
`BCM2835_CM_HSMCTL = $00000088;`	HSM Clock Control
`BCM2835_CM_HSMDIV = $0000008C;`	HSM Clock Divisor
`BCM2835_CM_OTPCTL = $00000090;`	OTP Clock Control
`BCM2835_CM_OTPDIV = $00000094;`	OTP Clock Divisor
`BCM2835_CM_PCMCTL = $00000098;`	PCM/I2S Clock Control
`BCM2835_CM_PCMDIV = $0000009C;`	PCM/I2S Clock Divisor
`BCM2835_CM_PWMCTL = $000000A0;`	PWM Clock Control
`BCM2835_CM_PWMDIV = $000000A4;`	PWM Clock Divisor
`BCM2835_CM_SLIMCTL = $000000A8;`	SLIM Clock Control
`BCM2835_CM_SLIMDIV = $000000AC;`	SLIM Clock Divisor
`BCM2835_CM_SMICTL = $000000B0;`	SMI Clock Control
`BCM2835_CM_SMIDIV = $000000B4;`	SMI Clock Divisor
`BCM2835_CM_TCNTCTL = $000000C0;`	TCNT Clock Control
`BCM2835_CM_TCNTDIV = $000000C4;`	TCNT Clock Divisor
`BCM2835_CM_TECCTL = $000000C8;`	TEC Clock Control
`BCM2835_CM_TECDIV = $000000CC;`	TEC Clock Divisor
`BCM2835_CM_TD0CTL = $000000D0;`	TD0 Clock Control
`BCM2835_CM_TD0DIV = $000000D4;`	TD0 Clock Divisor
`BCM2835_CM_TD1CTL = $000000D8;`	TD1 Clock Control
`BCM2835_CM_TD1DIV = $000000DC;`	TD1 Clock Divisor
`BCM2835_CM_TSENSCTL = $000000E0;`	TSENS Clock Control
`BCM2835_CM_TSENSDIV = $000000E4;`	TSENS Clock Divisor
`BCM2835_CM_TIMERCTL = $000000E8;`	Timer Clock Control
`BCM2835_CM_TIMERDIV = $000000EC;`	Timer Clock Divisor
`BCM2835_CM_UARTCTL = $000000F0;`	UART Clock Control
`BCM2835_CM_UARTDIV = $000000F4;`	UART Clock Divisor
`BCM2835_CM_VECCTL = $000000F8;`	VEC Clock Control
`BCM2835_CM_VECDIV = $000000FC;`	VEC Clock Divisor

`BCM2835_CM_OSCCOUNT = $00000100;`	Oscillator Count
`BCM2835_CM_PLLA = $00000104;`	PLLA
`BCM2835_CM_PLLC = $00000108;`	PLLC
`BCM2835_CM_PLLD = $0000010C;`	PLLD
`BCM2835_CM_PLLH = $00000110;`	PLLH
`BCM2835_CM_LOCK = $00000114;`	Lock
`BCM2835_CM_EVENT = $00000118;`	Event
`BCM2835_CM_INTEN = $00000118;`	INTEN
`BCM2835_CM_DSI0HSCK = $00000120;`	DSI0HSCK
`BCM2835_CM_CKSM = $00000124;`	CKSM
`BCM2835_CM_OSCFREQI = $00000128;`	Oscillator Frequency Integer
`BCM2835_CM_OSCFREQF = $0000012C;`	Oscillator Frequency Fraction
`BCM2835_CM_PLLTCTL = $00000130;`	PLLT Control
`BCM2835_CM_PLLTCNT0 = $00000134;`	PLLT0 Count
`BCM2835_CM_PLLTCNT1 = $00000138;`	PLLT1 Count
`BCM2835_CM_PLLTCNT2 = $0000013C;`	PLLT2 Count
`BCM2835_CM_PLLTCNT3 = $00000140;`	PLLT3 Count
`BCM2835_CM_TDCLKEN = $00000144;`	TD Clock Enable
`BCM2835_CM_BURSTCTL = $00000148;`	Burst Control
`BCM2835_CM_BURSTCNT = $0000014C;`	Burst Count
`BCM2835_CM_DSI1ECTL = $00000158;`	DSI1E Clock Control
`BCM2835_CM_DSI1EDIV = $0000015C;`	DSI1E Clock Divisor
`BCM2835_CM_DSI1PCTL = $00000160;`	DSI1P Clock Control
`BCM2835_CM_DSI1PDIV = $00000164;`	DSI1P Clock Divisor
`BCM2835_CM_DFTCTL = $00000168;`	DFT Clock Control
`BCM2835_CM_DFTDIV = $0000016C;`	DFT Clock Divisor
`BCM2835_CM_PLLB = $00000170;`	PLLB

`BCM2835_CM_PULSECTL = $00000190;`	Pulse Clock Control
`BCM2835_CM_PULSEDIV = $00000194;`	Pulse Clock Divisor
`BCM2835_CM_SDCCTL = $000001A8;`	SDC Clock Control
`BCM2835_CM_SDCDIV = $000001AC;`	SDC Clock Divisor
`BCM2835_CM_ARMCTL = $000001B0;`	ARM Clock Control
`BCM2835_CM_ARMDIV = $000001B4;`	ARM Clock Divisor
`BCM2835_CM_AVEOCTL = $000001B8;`	AVEO Clock Control
`BCM2835_CM_AVEODIV = $000001BC;`	AVEO Clock Divisor
`BCM2835_CM_EMMCCTL = $000001C0;`	EMMC Clock Control
`BCM2835_CM_EMMCDIV = $000001C4;`	EMMC Clock Divisor

BCM2835 mailbox BCM2835_MAILBOX_*

`BCM2835_MAILBOX_0 = 0;`
`BCM2835_MAILBOX_1 = 1;`

BCM2835 mailbox 0 channel BCM2835_MAILBOX0_CHANNEL_*

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

`BCM2835_MAILBOX0_CHANNEL_POWER_MGMT = 0;`
`BCM2835_MAILBOX0_CHANNEL_FRAMEBUFFER = 1;`
`BCM2835_MAILBOX0_CHANNEL_UART = 2;`
`BCM2835_MAILBOX0_CHANNEL_VCHIQ = 3;`
`BCM2835_MAILBOX0_CHANNEL_LEDS = 4;`
`BCM2835_MAILBOX0_CHANNEL_BUTTONS = 5;`
`BCM2835_MAILBOX0_CHANNEL_TOUCHSCREEN = 6;`
`BCM2835_MAILBOX0_CHANNEL_UNKNOWN = 7;`
`BCM2835_MAILBOX0_CHANNEL_PROPERTYTAGS_ARMVC = 8;`
`BCM2835_MAILBOX0_CHANNEL_PROPERTYTAGS_VCARM = 9;`

BCM2835 mailbox 1 channel BCM2835_MAILBOX_*

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

The BCM2835 mailboxes pass 28-bit messages (The low 4 bits of the 32-bit value are used to specify the channel)
`BCM2835_MAILBOX_CHANNEL_MASK = $0000000F;`
`BCM2835_MAILBOX_DATA_MASK = $FFFFFFF0;`

BCM2835 mailbox status flag BCM2835_MAILBOX_STATUS_*

`BCM2835_MAILBOX_STATUS_FULL = $80000000;`
`BCM2835_MAILBOX_STATUS_EMPTY = $40000000;`

BCM2835 mailbox configuration flag BCM2835_MAILBOX_CONFIG_*

`BCM2835_MAILBOX_CONFIG_IRQENABLE = $00000001;`

BCM2835 mailbox property tag BCM2835_MBOX_TAG_GET_*

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

VideoCore
`BCM2835_MBOX_TAG_GET_FIRMWARE_REV = $00000001;`
Hardware
`BCM2835_MBOX_TAG_GET_BOARD_MODEL = $00010001;`
`BCM2835_MBOX_TAG_GET_BOARD_REV = $00010002;`

`BCM2835_MBOX_TAG_GET_MAC_ADDRESS = $00010003;`

`BCM2835_MBOX_TAG_GET_BOARD_SERIAL = $00010004;`

`BCM2835_MBOX_TAG_GET_ARM_MEMORY = $00010005;`
`BCM2835_MBOX_TAG_GET_VC_MEMORY = $00010006;`

`BCM2835_MBOX_TAG_GET_CLOCKS = $00010007;`
Shared Resource Management
`BCM2835_MBOX_TAG_GET_POWER_STATE = $00020001;`	Response indicates current state
`BCM2835_MBOX_TAG_GET_TIMING = $00020002;`	Response indicates wait time required after turning a device on before power is stable
`BCM2835_MBOX_TAG_SET_POWER_STATE = $00028001;`	Response indicates new state, with/without waiting for the power to become stable

`BCM2835_MBOX_TAG_GET_CLOCK_STATE = $00030001;`
`BCM2835_MBOX_TAG_SET_CLOCK_STATE = $00038001;`

`BCM2835_MBOX_TAG_GET_CLOCK_RATE = $00030002;`
`BCM2835_MBOX_TAG_SET_CLOCK_RATE = $00038002;`

`BCM2835_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.
`BCM2835_MBOX_TAG_GET_CLOCK_MIN_RATE = $00030007;`	Return the minimum supported clock rate for the given clock. This may be used when idle.

`BCM2835_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.
`BCM2835_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.

`BCM2835_MBOX_TAG_GET_STC = $0003000b;`
Voltage
`BCM2835_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.
`BCM2835_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.

`BCM2835_MBOX_TAG_GET_MAX_VOLTAGE = $00030005;`	Return the maximum supported voltage rate for the given Id. Voltages should not be set higher than this.
`BCM2835_MBOX_TAG_GET_MIN_VOLTAGE = $00030008;`	Return the minimum supported voltage rate for the given Id. This may be used when idle.

`BCM2835_MBOX_TAG_GET_TEMP = $00030006;`	Return the temperature of the SoC in thousandths of a degree C. Id should be zero.
`BCM2835_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
`BCM2835_MBOX_TAG_ALLOCATE_MEMORY = $0003000c;`	Allocates contiguous memory on the GPU. Size and alignment are in bytes.
`BCM2835_MBOX_TAG_LOCK_MEMORY = $0003000d;`	Lock buffer in place, and return a bus address. Must be done before memory can be accessed.
`BCM2835_MBOX_TAG_UNLOCK_MEMORY = $0003000e;`	Unlock buffer. It retains contents, but may move. Needs to be locked before next use. status=0 is success.
`BCM2835_MBOX_TAG_RELEASE_MEMORY = $0003000f;`	Free the memory buffer. status=0 is success

`BCM2835_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
`BCM2835_MBOX_TAG_EXECUTE_QPU = $00030011;`	Execute an assembled block of code using one or more Quad Processing Units (QPUs)
`BCM2835_MBOX_TAG_ENABLE_QPU = $00030012;`	Enable the Quad Processing Units (QPUs)

`BCM2835_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.
`BCM2835_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.

`BCM2835_MBOX_TAG_GET_CUSTOMER_OTP = $00030021;`
`BCM2835_MBOX_TAG_SET_CUSTOMER_OTP = $00038021;`

`BCM2835_MBOX_TAG_GET_DOMAIN_STATE = $00030030;`
`BCM2835_MBOX_TAG_SET_DOMAIN_STATE = $00038030;`

`BCM2835_MBOX_TAG_GET_GPIO_STATE = $00030041;`	Get the current state of a GPIO expander pin (Not applicable on BCM2835)
`BCM2835_MBOX_TAG_SET_GPIO_STATE = $00038041;`	Set the current state of a GPIO expander pin (Not applicable on BCM2835)

`BCM2835_MBOX_TAG_SET_SDHOST_CLOCK = $00038042;`	Tell the firmware the SD Host clock setting so it will be adjusted for changes in core frequency

`BCM2835_MBOX_TAG_GET_GPIO_CONFIG = $00030043;`	Get the current configuration of a GPIO expander pin (Not applicable on BCM2835)
`BCM2835_MBOX_TAG_SET_GPIO_CONFIG = $00038043;`	Set the current configuration of a GPIO expander pin (Not applicable on BCM2835)

`BCM2835_MBOX_TAG_GET_THROTTLED = $00030046;`

`BCM2835_MBOX_TAG_GET_PERIPH_REG = $00030045;`
`BCM2835_MBOX_TAG_SET_PERIPH_REG = $00038045;`

`BCM2835_MBOX_TAG_GET_POE_HAT_VAL = $00030049;`
`BCM2835_MBOX_TAG_SET_POE_HAT_VAL = $00038049;`

`BCM2835_MBOX_TAG_NOTIFY_REBOOT = $00030048;`
`BCM2835_MBOX_TAG_NOTIFY_XHCI_RESET = $00030058;`

`BCM2835_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)

`BCM2835_MBOX_TAG_GET_REBOOT_FLAGS = $00030064;`
`BCM2835_MBOX_TAG_SET_REBOOT_FLAGS = $00038064;`

`BCM2835_MBOX_TAG_NOTIFY_DISPLAY_DONE = $00030066;`
Frame Buffer
`BCM2835_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
`BCM2835_MBOX_TAG_RELEASE_BUFFER = $00048001;`	Releases and disables the frame buffer

`BCM2835_MBOX_TAG_SET_BLANK_SCREEN = $00040002;`
`BCM2835_MBOX_TAG_TEST_BLANK_SCREEN = $00044002;`	Previously BCM2835_MBOX_TAG_TST_BLANK_SCREEN

`BCM2835_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.
`BCM2835_MBOX_TAG_TEST_PHYSICAL_W_H = $00044003;`
`BCM2835_MBOX_TAG_SET_PHYSICAL_W_H = $00048003;`

`BCM2835_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.
`BCM2835_MBOX_TAG_TEST_VIRTUAL_W_H = $00044004;`
`BCM2835_MBOX_TAG_SET_VIRTUAL_W_H = $00048004;`

`BCM2835_MBOX_TAG_GET_DEPTH = $00040005;`
`BCM2835_MBOX_TAG_TEST_DEPTH = $00044005;`
`BCM2835_MBOX_TAG_SET_DEPTH = $00048005;`

`BCM2835_MBOX_TAG_GET_PIXEL_ORDER = $00040006;`
`BCM2835_MBOX_TAG_TEST_PIXEL_ORDER = $00044006;`
`BCM2835_MBOX_TAG_SET_PIXEL_ORDER = $00048006;`

`BCM2835_MBOX_TAG_GET_ALPHA_MODE = $00040007;`
`BCM2835_MBOX_TAG_TEST_ALPHA_MODE = $00044007;`
`BCM2835_MBOX_TAG_SET_ALPHA_MODE = $00048007;`

`BCM2835_MBOX_TAG_GET_PITCH = $00040008;`
`BCM2835_MBOX_TAG_TEST_PITCH = $00044008;`	Previously BCM2835_MBOX_TAG_TST_PITCH
`BCM2835_MBOX_TAG_SET_PITCH = $00048008;`

`BCM2835_MBOX_TAG_GET_VIRTUAL_OFFSET = $00040009;`	Offset of physical display window within virtual buffer
`BCM2835_MBOX_TAG_TEST_VIRTUAL_OFFSET = $00044009;`
`BCM2835_MBOX_TAG_SET_VIRTUAL_OFFSET = $00048009;`

`BCM2835_MBOX_TAG_GET_OVERSCAN = $0004000a;`
`BCM2835_MBOX_TAG_TEST_OVERSCAN = $0004400a;`
`BCM2835_MBOX_TAG_SET_OVERSCAN = $0004800a;`

`BCM2835_MBOX_TAG_GET_PALETTE = $0004000b;`
`BCM2835_MBOX_TAG_TEST_PALETTE = $0004400b;`
`BCM2835_MBOX_TAG_SET_PALETTE = $0004800b;`

`BCM2835_MBOX_TAG_GET_LAYER = $0004000c;`
`BCM2835_MBOX_TAG_TEST_LAYER = $0004400c;`	Previously BCM2835_MBOX_TAG_TST_LAYER
`BCM2835_MBOX_TAG_SET_LAYER = $0004800c;`

`BCM2835_MBOX_TAG_GET_TRANSFORM = $0004000d;`
`BCM2835_MBOX_TAG_TEST_TRANSFORM = $0004400d;`	Previously BCM2835_MBOX_TAG_TST_TRANSFORM
`BCM2835_MBOX_TAG_SET_TRANSFORM = $0004800d;`

`BCM2835_MBOX_TAG_TEST_VSYNC = $0004400e;`	Previously BCM2835_MBOX_TAG_TST_VSYNC
`BCM2835_MBOX_TAG_SET_VSYNC = $0004800e;`

`BCM2835_MBOX_TAG_SET_BACKLIGHT = $0004800f;`

`BCM2835_MBOX_TAG_GET_TOUCHBUF = $0004000f;`
`BCM2835_MBOX_TAG_SET_TOUCHBUF = $0004801f;`

`BCM2835_MBOX_TAG_GET_GPIOVIRTBUF = $00040010;`
`BCM2835_MBOX_TAG_SET_GPIOVIRTBUF = $00048020;`

`BCM2835_MBOX_TAG_GET_DISPLAY_ID = $00040016;`
`BCM2835_MBOX_TAG_SET_DISPLAY_NUM = $00048013;`
`BCM2835_MBOX_TAG_GET_NUM_DISPLAYS = $00040013;`
`BCM2835_MBOX_TAG_GET_DISPLAY_SETTINGS = $00040014;`

`BCM2835_MBOX_TAG_SET_PLANE = $00048015;`
`BCM2835_MBOX_TAG_GET_DISPLAY_TIMING = $00040017;`
`BCM2835_MBOX_TAG_SET_TIMING = $00048017;`
`BCM2835_MBOX_TAG_GET_DISPLAY_CFG = $00040018;`
`BCM2835_MBOX_TAG_SET_DISPLAY_POWER = $00048019;`

`BCM2835_MBOX_TAG_SET_CURSOR_INFO = $00008010;`	00008011 These were reversed in the documentation, see Linux \include\soc\bcm2835\raspberrypi-firmware.h
`BCM2835_MBOX_TAG_SET_CURSOR_STATE = $00008011;`	00008010
VCHIQ
`BCM2835_MBOX_TAG_VCHIQ_INIT = $00048010;`
Config
`BCM2835_MBOX_TAG_GET_COMMAND_LINE = $00050001;`
Shared Resource Management
`BCM2835_MBOX_TAG_GET_DMA_CHANNELS = $00060001;`	Caller assumes that the VC has enabled all the usable DMA channels
End
`BCM2835_MBOX_TAG_END = $00000000;`

BCM2835 mailbox board revision value BCM2835_BOARD_REV_*

See: http://elinux.org/RPi_HardwareHistory

`BCM2835_BOARD_REV_B_I2C0_2 = $00000002;`
`BCM2835_BOARD_REV_B_I2C0_3 = $00000003;`
`BCM2835_BOARD_REV_B_I2C1_4 = $00000004;`
`BCM2835_BOARD_REV_B_I2C1_5 = $00000005;`
`BCM2835_BOARD_REV_B_I2C1_6 = $00000006;`
`BCM2835_BOARD_REV_A_7 = $00000007;`
`BCM2835_BOARD_REV_A_8 = $00000008;`
`BCM2835_BOARD_REV_A_9 = $00000009;`
`BCM2835_BOARD_REV_B_REV2_d = $0000000D;`
`BCM2835_BOARD_REV_B_REV2_e = $0000000E;`
`BCM2835_BOARD_REV_B_REV2_f = $0000000F;`
`BCM2835_BOARD_REV_B_PLUS = $00000010;`
`BCM2835_BOARD_REV_CM = $00000011;`
`BCM2835_BOARD_REV_A_PLUS = $00000012;`
`BCM2835_BOARD_REV_B_PLUS_2 = $00000013;`
`BCM2835_BOARD_REV_CM_2 = $00000014;`
`BCM2835_BOARD_REV_A_PLUS_2 = $00000015;`	512MB version of the A+

`BCM2835_BOARD_REV_APLUS_1 = $00900021;`
`BCM2835_BOARD_REV_ZERO_1 = $00900092;`
`BCM2835_BOARD_REV_ZERO_2 = $00900093;`
`BCM2835_BOARD_REV_ZERO_3 = $00920093;`
`BCM2835_BOARD_REV_ZERO_W_1 = $009000C1;`

`BCM2835_BOARD_REV_MASK = $00FFFFFF;`	Mask off the warranty bit

BCM2835 mailbox board revision BCM2835_BOARD_REVISION_*

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

`BCM2835_BOARD_REVISION_PCB_MASK = ($F shl 0);`	PCB Revision Number

`BCM2835_BOARD_REVISION_MODEL_MASK = ($FF shl 4);`	Model Number
`BCM2835_BOARD_REVISION_MODEL_A = (0 shl 4);`	Model A
`BCM2835_BOARD_REVISION_MODEL_B = (1 shl 4);`	Model B
`BCM2835_BOARD_REVISION_MODEL_APLUS = (2 shl 4);`	Model A+
`BCM2835_BOARD_REVISION_MODEL_BPLUS = (3 shl 4);`	Model B+
`BCM2835_BOARD_REVISION_MODEL_2B = (4 shl 4);`	Model 2B (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_ALPHA = (5 shl 4);`	Unknown
`BCM2835_BOARD_REVISION_MODEL_COMPUTE = (6 shl 4);`	Compute Module
`BCM2835_BOARD_REVISION_MODEL_UNKNOWN = (7 shl 4);`	Unknown
`BCM2835_BOARD_REVISION_MODEL_3B = (8 shl 4);`	Model 3B (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_ZERO = (9 shl 4);`	Model Zero
`BCM2835_BOARD_REVISION_MODEL_COMPUTE3 = (10 shl 4);`	Compute Module 3 (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_UNKNOWN_2 = (11 shl 4);`	Unknown
`BCM2835_BOARD_REVISION_MODEL_ZERO_W = (12 shl 4);`	Model Zero W
`BCM2835_BOARD_REVISION_MODEL_3BPLUS = (13 shl 4);`	Model 3B+ (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_3APLUS = (14 shl 4);`	Model 3A+ (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_COMPUTE3PLUS = (16 shl 4);`	Compute Module 3+ (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_4B = (17 shl 4);`	Model 4B (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_ZERO2_W = (18 shl 4);`	Model Zero 2 W (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_400 = (19 shl 4);`	Pi 400 (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_MODEL_CM4 = (20 shl 4);`	Compute Module 4 (Cannot occur on BCM2835)

`BCM2835_BOARD_REVISION_PROCESSOR_MASK = ($F shl 12);`	Processor Type
`BCM2835_BOARD_REVISION_PROCESSOR_BCM2835 = (0 shl 12);`	BCM2835
`BCM2835_BOARD_REVISION_PROCESSOR_BCM2836 = (1 shl 12);`	BCM2836 (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_PROCESSOR_BCM2837 = (2 shl 12);`	BCM2837 (Cannot occur on BCM2835)
`BCM2835_BOARD_REVISION_PROCESSOR_BCM2838 = (3 shl 12);`	BCM2838 (Cannot occur on BCM2835)

`BCM2835_BOARD_REVISION_MANUFACTURER_MASK = ($F shl 16);`	Manufacturer
`BCM2835_BOARD_REVISION_MANUFACTURER_SONY = (0 shl 16);`	Sony
`BCM2835_BOARD_REVISION_MANUFACTURER_EGOMAN = (1 shl 16);`	Egoman
`BCM2835_BOARD_REVISION_MANUFACTURER_EMBEST = (2 shl 16);`	Embest
`BCM2835_BOARD_REVISION_MANUFACTURER_SONY_JAPAN = (3 shl 16);`	Sony (Japan)
`BCM2835_BOARD_REVISION_MANUFACTURER_EMBEST2 = (4 shl 16);`	Embest
`BCM2835_BOARD_REVISION_MANUFACTURER_STADIUM = (5 shl 16);`	Stadium

`BCM2835_BOARD_REVISION_MEMORY_MASK = ($7 shl 20);`	Memory Size
`BCM2835_BOARD_REVISION_MEMORY_256M = (0 shl 20);`	256M
`BCM2835_BOARD_REVISION_MEMORY_512M = (1 shl 20);`	512M
`BCM2835_BOARD_REVISION_MEMORY_1024M = (2 shl 20);`	1024M
`BCM2835_BOARD_REVISION_MEMORY_2048M = (3 shl 20);`	2048M
`BCM2835_BOARD_REVISION_MEMORY_4096M = (4 shl 20);`	4096M
`BCM2835_BOARD_REVISION_MEMORY_8192M = (5 shl 20);`	8192M

`BCM2835_BOARD_REVISION_ENCODED_FLAG = (1 shl 23);`	Encoded Flag, if set then revision uses this encoding

`BCM2835_BOARD_REVISION_MASK = $00FFFFFF;`	Mask off the warranty bits

BCM2835 mailbox power state device BCM2835_MBOX_POWER_DEVID_*

`BCM2835_MBOX_POWER_DEVID_SDHCI = 0;`
`BCM2835_MBOX_POWER_DEVID_UART0 = 1;`
`BCM2835_MBOX_POWER_DEVID_UART1 = 2;`
`BCM2835_MBOX_POWER_DEVID_USB_HCD = 3;`
`BCM2835_MBOX_POWER_DEVID_I2C0 = 4;`
`BCM2835_MBOX_POWER_DEVID_I2C1 = 5;`
`BCM2835_MBOX_POWER_DEVID_I2C2 = 6;`
`BCM2835_MBOX_POWER_DEVID_SPI = 7;`
`BCM2835_MBOX_POWER_DEVID_CCP2TX = 8;`

`BCM2835_MBOX_POWER_DEVID_UNKNOWN = $FFFFFFFF;`

BCM2835 mailbox power state request BCM2835_MBOX_SET_POWER_STATE_REQ_*

`BCM2835_MBOX_SET_POWER_STATE_REQ_OFF = (0 shl 0);`
`BCM2835_MBOX_SET_POWER_STATE_REQ_ON = (1 shl 0);`
`BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT = (1 shl 1);`

BCM2835 mailbox power state response BCM2835_MBOX_POWER_STATE_RESP_*

`BCM2835_MBOX_POWER_STATE_RESP_OFF = (0 shl 0);`
`BCM2835_MBOX_POWER_STATE_RESP_ON = (1 shl 0);`
`BCM2835_MBOX_POWER_STATE_RESP_NODEV = (1 shl 1);`	Device doesn't exist

BCM2835 mailbox clock state/rate Id BCM2835_MBOX_CLOCK_ID_*

`BCM2835_MBOX_CLOCK_ID_RESERVED = 0;`
`BCM2835_MBOX_CLOCK_ID_EMMC = 1;`
`BCM2835_MBOX_CLOCK_ID_UART = 2;`
`BCM2835_MBOX_CLOCK_ID_ARM = 3;`
`BCM2835_MBOX_CLOCK_ID_CORE = 4;`
`BCM2835_MBOX_CLOCK_ID_V3D = 5;`
`BCM2835_MBOX_CLOCK_ID_H264 = 6;`
`BCM2835_MBOX_CLOCK_ID_ISP = 7;`
`BCM2835_MBOX_CLOCK_ID_SDRAM = 8;`
`BCM2835_MBOX_CLOCK_ID_PIXEL = 9;`
`BCM2835_MBOX_CLOCK_ID_PWM = 10;`

`BCM2835_MBOX_CLOCK_ID_UNKNOWN = $FFFFFFFF;`

BCM2835 mailbox clock state request BCM2835_MBOX_SET_CLOCK_STATE_REQ_*

`BCM2835_MBOX_SET_CLOCK_STATE_REQ_OFF = (0 shl 0);`
`BCM2835_MBOX_SET_CLOCK_STATE_REQ_ON = (1 shl 0);`
`BCM2835_MBOX_SET_CLOCK_STATE_REQ_NOCLOCK = (1 shl 1);`	Clock doesn't exist

BCM2835 mailbox clock state response BCM2835_MBOX_CLOCK_STATE_RESP_*

`BCM2835_MBOX_CLOCK_STATE_RESP_OFF = (0 shl 0);`
`BCM2835_MBOX_CLOCK_STATE_RESP_ON = (1 shl 0);`
`BCM2835_MBOX_CLOCK_STATE_RESP_NOCLOCK = (1 shl 1);`	Clock doesn't exist

BCM2835 mailbox clock rate turbo BCM2835_MBOX_CLOCK_RATE_REQ_*

`BCM2835_MBOX_CLOCK_RATE_REQ_SKIP_TURBO = (1 shl 0);`

BCM2835 mailbox voltage Id BCM2835_MBOX_VOLTAGE_ID_*

`BCM2835_MBOX_VOLTAGE_ID_RESERVED = $00000000;`
`BCM2835_MBOX_VOLTAGE_ID_CORE = $00000001;`
`BCM2835_MBOX_VOLTAGE_ID_SDRAM_C = $00000002;`
`BCM2835_MBOX_VOLTAGE_ID_SDRAM_P = $00000003;`
`BCM2835_MBOX_VOLTAGE_ID_SDRAM_I = $00000004;`

BCM2835 mailbox voltage BCM2835_MBOX_VOLTAGE_*

`BCM2835_MBOX_VOLTAGE_INVALID = $80000000;`	A value of 0x80000000 means the Id was not valid

BCM2835 mailbox temperature Id BCM2835_MBOX_TEMP_ID_*

`BCM2835_MBOX_TEMP_ID_SOC = 0;`

BCM2835 mailbox display Id BCM2835_MBOX_DISPLAY_ID_*

Note: These are compatible with the DISPMANX_ID_* values)
`BCM2835_MBOX_DISPLAY_ID_MAIN_LCD = 0;`
`BCM2835_MBOX_DISPLAY_ID_AUX_LCD = 1;`
`BCM2835_MBOX_DISPLAY_ID_HDMI0 = 2;`
`BCM2835_MBOX_DISPLAY_ID_SDTV = 3;`
`BCM2835_MBOX_DISPLAY_ID_FORCE_LCD = 4;`
`BCM2835_MBOX_DISPLAY_ID_FORCE_TV = 5;`
`BCM2835_MBOX_DISPLAY_ID_FORCE_OTHER = 6;`	Non-default display
`BCM2835_MBOX_DISPLAY_ID_HDMI1 = 7;`	Not applicable on BCM2835
`BCM2835_MBOX_DISPLAY_ID_FORCE_TV2 = 8;`	Not applicable on BCM2835

BCM2835 mailbox memory flag BCM2835_MBOX_MEM_FLAG_*

`BCM2835_MBOX_MEM_FLAG_DISCARDABLE = (1 shl 0);`	Can be resized to 0 at any time. Use for cached data.
`BCM2835_MBOX_MEM_FLAG_NORMAL = (0 shl 2);`	Normal allocating alias. Don't use from ARM.
`BCM2835_MBOX_MEM_FLAG_DIRECT = (1 shl 2);`	0xC alias uncached
`BCM2835_MBOX_MEM_FLAG_COHERENT = (2 shl 2);`	0x8 alias. Non-allocating in L2 but coherent.
`BCM2835_MBOX_MEM_FLAG_L1_NONALLOCATING = (BCM2835_MBOX_MEM_FLAG_DIRECT or BCM2835_MBOX_MEM_FLAG_COHERENT);`	Allocating in L2
`BCM2835_MBOX_MEM_FLAG_ZERO = (1 shl 4);`	Initialise buffer to all zeros
`BCM2835_MBOX_MEM_FLAG_NO_INIT = (1 shl 5);`	Don't initialise (default is initialise to all ones)
`BCM2835_MBOX_MEM_FLAG_HINT_PERMALOCK = (1 shl 6);`	Likely to be locked for long periods of time

BCM2835 mailbox blank screen BCM2835_MBOX_BLANK_SCREEN_*

`BCM2835_MBOX_BLANK_SCREEN_REQ_ON = (1 shl 0);`

BCM2835 mailbox pixel order BCM2835_MBOX_PIXEL_ORDER_*

`BCM2835_MBOX_PIXEL_ORDER_BGR = 0;`
`BCM2835_MBOX_PIXEL_ORDER_RGB = 1;`

BCM2835 mailbox alpha mode BCM2835_MBOX_ALPHA_MODE_*

`BCM2835_MBOX_ALPHA_MODE_0_OPAQUE = 0;`
`BCM2835_MBOX_ALPHA_MODE_0_TRANSPARENT = 1;`
`BCM2835_MBOX_ALPHA_MODE_IGNORED = 2;`

BCM2835 mailbox palette BCM2835_MBOX_PALETTE_*

`BCM2835_MBOX_PALETTE_INVALID = $00000001;`

BCM2835 mailbox cursor state BCM2835_MBOX_CURSOR_*

`BCM2835_MBOX_CURSOR_INVISIBLE = 0;`
`BCM2835_MBOX_CURSOR_VISIBLE = 1;`

BCM2835 mailbox cursor state flag BCM2835_MBOX_CURSOR_STATE_*

`BCM2835_MBOX_CURSOR_STATE_DISPLAY_COORDS = (0 shl 0);`
`BCM2835_MBOX_CURSOR_STATE_FRAMEBUFFER_COORDS = (1 shl 0);`

BCM2835 mailbox cursor BCM2835_MBOX_CURSOR_*

`BCM2835_MBOX_CURSOR_INVALID = $00000001;`

BCM2835 mailbox request BCM2835_MBOX_*

`BCM2835_MBOX_REQUEST_CODE = $00000000;`
`BCM2835_MBOX_RESPONSE_CODE_SUCCESS = $80000000;`
`BCM2835_MBOX_RESPONSE_CODE_ERROR = $80000001;`

BCM2835 mailbox tag request BCM2835_MBOX_TAG_*

`BCM2835_MBOX_TAG_REQUEST_CODE = $00000000;`
`BCM2835_MBOX_TAG_RESPONSE_CODE = $80000000;`

BCM2835 GPIO BCM2835_GPIO_*

`BCM2835_GPIO_PIN_COUNT = 54;`
`BCM2835_GPIO_BANK_COUNT = 2;`

`BCM2835_GPIO_SIGNATURE = $6770696F;`	The ASCII value 'GPIO' returned when reading from a write only register

BCM2835 function select register BCM2835_GP*

`BCM2835_GPFSEL0 = $00000000;`	GPIO Function Select 0
`BCM2835_GPFSEL1 = $00000004;`	GPIO Function Select 1
`BCM2835_GPFSEL2 = $00000008;`	GPIO Function Select 2
`BCM2835_GPFSEL3 = $0000000C;`	GPIO Function Select 3
`BCM2835_GPFSEL4 = $00000010;`	GPIO Function Select 4
`BCM2835_GPFSEL5 = $00000014;`	GPIO Function Select 5

Pin Output Set Registers
`BCM2835_GPSET0 = $0000001C;`	GPIO Pin Output Set 0
`BCM2835_GPSET1 = $00000020;`	GPIO Pin Output Set 1

Pin Output Clear Registers
`BCM2835_GPCLR0 = $00000028;`	GPIO Pin Output Clear 0
`BCM2835_GPCLR1 = $0000002C;`	GPIO Pin Output Clear 1

Pin Level Registers
`BCM2835_GPLEV0 = $00000034;`	GPIO Pin Level 0
`BCM2835_GPLEV1 = $00000038;`	GPIO Pin Level 1

Pin Event Detect Status Registers
`BCM2835_GPEDS0 = $00000040;`	GPIO Pin Event Detect Status 0
`BCM2835_GPEDS1 = $00000044;`	GPIO Pin Event Detect Status 1

Pin Rising Edge Detect Enable Registers
`BCM2835_GPREN0 = $0000004c;`	GPIO Pin Rising Edge Detect Enable 0
`BCM2835_GPREN1 = $00000050;`	GPIO Pin Rising Edge Detect Enable 1

Pin Falling Edge Detect Enable Registers
`BCM2835_GPFEN0 = $00000058;`	GPIO Pin Falling Edge Detect Enable 0
`BCM2835_GPFEN1 = $0000005c;`	GPIO Pin Falling Edge Detect Enable 1

Pin High Detect Enable Registers
`BCM2835_GPHEN0 = $00000064;`	GPIO Pin High Detect Enable 0
`BCM2835_GPHEN1 = $00000068;`	GPIO Pin High Detect Enable 1

Pin Low Detect Enable Registers
`BCM2835_GPLEN0 = $00000070;`	GPIO Pin Low Detect Enable 0
`BCM2835_GPLEN1 = $00000074;`	GPIO Pin Low Detect Enable 1

Pin Async. Rising Edge Detect Registers
`BCM2835_GPAREN0 = $0000007c;`	GPIO Pin Async. Rising Edge Detect 0
`BCM2835_GPAREN1 = $00000080;`	GPIO Pin Async. Rising Edge Detect 1

Pin Async. Falling Edge Detect Registers
`BCM2835_GPAFEN0 = $00000088;`	GPIO Pin Async. Falling Edge Detect 0
`BCM2835_GPAFEN1 = $0000008c;`	GPIO Pin Async. Falling Edge Detect 1

Pin Pull-up/down Enable Registers
`BCM2835_GPPUD = $00000094;`	GPIO Pin Pull-up/down Enable

Pin Pull-up/down Enable Clock Registers
`BCM2835_GPPUDCLK0 = $00000098;`	GPIO Pin Pull-up/down Enable Clock 0
`BCM2835_GPPUDCLK1 = $0000009C;`	GPIO Pin Pull-up/down Enable Clock 1

Function Select Mask
`BCM2835_GPFSEL_MASK = 7;`

Function Select Values
`BCM2835_GPFSEL_IN = 0;`
`BCM2835_GPFSEL_OUT = 1;`
`BCM2835_GPFSEL_ALT0 = 4;`
`BCM2835_GPFSEL_ALT1 = 5;`
`BCM2835_GPFSEL_ALT2 = 6;`
`BCM2835_GPFSEL_ALT3 = 7;`
`BCM2835_GPFSEL_ALT4 = 3;`
`BCM2835_GPFSEL_ALT5 = 2;`

Pin Output Set Mask
`BCM2835_GPSET_MASK = 1;`

Pin Output Clear Mask
`BCM2835_GPCLR_MASK = 1;`

Pin Level Mask
`BCM2835_GPLEV_MASK = 1;`

Pin Event Detect Status Mask
`BCM2835_GPEDS_MASK = 1;`

Pin Rising Edge Detect Enable Mask
`BCM2835_GPREN_MASK = 1;`

Pin Falling Edge Detect Enable Mask
`BCM2835_GPFEN_MASK = 1;`

Pin High Detect Enable Mask
`BCM2835_GPHEN_MASK = 1;`

Pin Low Detect Enable Mask
`BCM2835_GPLEN_MASK = 1;`

Pin Async. Rising Edge Detect Mask
`BCM2835_GPAREN_MASK = 1;`

Pin Async. Falling Edge Detect Mask
`BCM2835_GPAFEN_MASK = 1;`

Pull-up/down Enable Mask
`BCM2835_GPPUD_MASK = 3;`

Pull-up/down Enable Values
`BCM2835_GPPUD_NONE = 0;`
`BCM2835_GPPUD_DOWN = 1;`
`BCM2835_GPPUD_UP = 2;`

Pin Pull-up/down Enable Clock Mask
`BCM2835_GPPUDCLK_MASK = 1;`

Type definitions

BCM2835 interrupt controller registers

PBCM2835InterruptRegisters = ^TBCM2835InterruptRegisters;

TBCM2835InterruptRegisters = record

Note: Layout of the BCM2835 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;`

BCM2835 system timer registers

PBCM2835SystemTimerRegisters = ^TBCM2835SystemTimerRegisters;

TBCM2835SystemTimerRegisters = record

Note: Layout of the BCM2835 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

BCM2835 DMA channel registers

PBCM2835DMARegisters = ^TBCM2835DMARegisters;

TBCM2835DMARegisters = record

Note: Layout of the BCM2835 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

BCM2835 DMA control block structure

PBCM2835DMAControlBlock = ^TBCM2835DMAControlBlock;

TBCM2835DMAControlBlock = record

Note: Layout of BCM2835 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;`

BCM2835 BSC (I2C) registers

PBCM2835BSCRegisters = ^TBCM2835BSCRegisters;

TBCM2835BSCRegisters = record

Note: Layout of the BCM2835 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

BCM2835 SPI0 registers

PBCM2835SPI0Registers = ^TBCM2835SPI0Registers;

TBCM2835SPI0Registers = record

Note: Layout of the BCM2835 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

BCM2835 I2C/SPI slave registers

PBCM2835I2CSPIRegisters = ^TBCM2835I2CSPIRegisters;

TBCM2835I2CSPIRegisters = record

Note: Layout of the BCM2835 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

BCM2835 AUX (UART1, SPI1 and SPI2) registers

PBCM2835AUXRegisters = ^TBCM2835AUXRegisters;

TBCM2835AUXRegisters = record

Note: Layout of the BCM2835 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

BCM2835 PCM/I2S registers

PBCM2835PCMRegisters = ^TBCM2835PCMRegisters;

TBCM2835PCMRegisters = record

Note: Layout of the BCM2835 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

BCM2835 pulse width modulator (PWM) registers

PBCM2835PWMRegisters = ^TBCM2835PWMRegisters;

TBCM2835PWMRegisters = record

Layout of the BCM2835 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

BCM2835 PL011 UART registers

PBCM2835PL011Registers = ^TBCM2835PL011Registers;

TBCM2835PL011Registers = record

Note: Layout of the BCM2835 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

BCM2835 ARM timer registers

PBCM2835ARMTimerRegisters = ^TBCM2835ARMTimerRegisters;

TBCM2835ARMTimerRegisters = record

Note: Layout of the BCM2835 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

BCM2835 power management watchdog registers

PBCM2835PMWatchdogRegisters = ^TBCM2835PMWatchdogRegisters;

TBCM2835PMWatchdogRegisters = record

Note: Layout of the BCM2835 Power Management Watchdog registers
`Reserved1:LongWord;`
`Reserved2:LongWord;`
`Reserved3:LongWord;`
`Reserved4:LongWord;`
`Reserved5:LongWord;`
`Reserved6:LongWord;`
`Reserved7:LongWord;`
`RSTC:LongWord;`
`RSTS:LongWord;`
`WDOG:LongWord;`

BCM2835 random number generator registers

PBCM2835RNGRegisters = ^TBCM2835RNGRegisters;

TBCM2835RNGRegisters = record

Note: Layout of the BCM2835 Random Number Generator registers
`Control:LongWord;`
`Status:LongWord;`
`Data:LongWord;`
`FFThreshold:LongWord;`

BCM2835 GPIO registers

PBCM2835GPIORegisters = ^TBCM2835GPIORegisters;

TBCM2835GPIORegisters = record

Note: Layout of the BCM2835 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

BCM2835 mailbox0 registers

PBCM2835Mailbox0Registers = ^TBCM2835Mailbox0Registers;

TBCM2835Mailbox0Registers = record

Note: Layout of the BCM2835 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)

BCM2835 mailbox1 registers

PBCM2835Mailbox1Registers = ^TBCM2835Mailbox1Registers;

TBCM2835Mailbox1Registers = record

Note: Layout of the BCM2835 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)

BCM2835 mailbox framebuffer request

PBCM2835MailboxFramebuffer = ^TBCM2835MailboxFramebuffer;

TBCM2835MailboxFramebuffer = record

Note: Layout of the BCM2835 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)

BCM2835 mailbox header property tags

PBCM2835MailboxHeader = ^TBCM2835MailboxHeader;

TBCM2835MailboxHeader = record

Note: Layout of the BCM2835 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

BCM2835 mailbox footer property tags

PBCM2835MailboxFooter = ^TBCM2835MailboxFooter;

TBCM2835MailboxFooter = record

Note: Layout of the BCM2835 Mailbox Property tags (These structures must be 16 byte aligned when passed to the GPU)
Footer
`Tag:LongWord;`	BCM2835_MBOX_TAG_END

BCM2835 mailbox tag headers

PBCM2835MailboxTagHeader = ^TBCM2835MailboxTagHeader;

TBCM2835MailboxTagHeader = 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

BCM2835 mailbox tag no request

PBCM2835MailboxTagNoRequest = ^TBCM2835MailboxTagNoRequest;

TBCM2835MailboxTagNoRequest = record

Tag No Request

BCM2835 mailbox tag no response

PBCM2835MailboxTagNoResponse = ^TBCM2835MailboxTagNoResponse;

TBCM2835MailboxTagNoResponse = record

Tag No Response

BCM2835 mailbox tag firmware revision response

TBCM2835MailboxTagFirmwareRevisionResponse = record

Get Firmware Revision
`Revision:LongWord;`

BCM2835 mailbox tag get firmware revision

PBCM2835MailboxTagGetFirmwareRevision = ^TBCM2835MailboxTagGetFirmwareRevision;

TBCM2835MailboxTagGetFirmwareRevision = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagFirmwareRevisionResponse);`

BCM2835 mailbox tag board model response

TBCM2835MailboxTagBoardModelResponse = record

Get Board Model
`Model:LongWord;`

BCM2835 mailbox tag get board model

PBCM2835MailboxTagGetBoardModel = ^TBCM2835MailboxTagGetBoardModel;

TBCM2835MailboxTagGetBoardModel = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagBoardModelResponse);`

BCM2835 mailbox tag board revision response

TBCM2835MailboxTagBoardRevisionResponse = record

Get Board Revision
`Revision:LongWord;`

BCM2835 mailbox tag get board revision

PBCM2835MailboxTagGetBoardRevision = ^TBCM2835MailboxTagGetBoardRevision;

TBCM2835MailboxTagGetBoardRevision = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagBoardRevisionResponse);`

BCM2835 mailbox tag MAC address response

TBCM2835MailboxTagMACAddressResponse = record

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

BCM2835 mailbox tag get MAC address

PBCM2835MailboxTagGetMACAddress = ^TBCM2835MailboxTagGetMACAddress;

TBCM2835MailboxTagGetMACAddress = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagMACAddressResponse);`

BCM2835 mailbox tag board serial response

TBCM2835MailboxTagBoardSerialResponse = record

Get Board Serial
`Serial:Int64;`

BCM2835 mailbox tag get board serial

PBCM2835MailboxTagGetBoardSerial = ^TBCM2835MailboxTagGetBoardSerial;

TBCM2835MailboxTagGetBoardSerial = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagBoardSerialResponse);`

BCM2835 mailbox tag ARM memory response

TBCM2835MailboxTagARMMemoryResponse = record

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

BCM2835 mailbox tag get ARM memory

PBCM2835MailboxTagGetARMMemory = ^TBCM2835MailboxTagGetARMMemory;

TBCM2835MailboxTagGetARMMemory = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagARMMemoryResponse);`

BCM2835 mailbox tag VC memory response

TBCM2835MailboxTagVCMemoryResponse = record

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

BCM2835 mailbox tag get VC memory

PBCM2835MailboxTagGetVCMemory = ^TBCM2835MailboxTagGetVCMemory;

TBCM2835MailboxTagGetVCMemory = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagVCMemoryResponse);`

BCM2835 mailbox tag clock response

TBCM2835MailboxTagClockResponse = record

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

BCM2835 mailbox tag clocks response

TBCM2835MailboxTagClocksResponse = record

`Clocks:array[0..255] of TBCM2835MailboxTagClockResponse;`

BCM2835 mailbox tag get clocks

PBCM2835MailboxTagGetClocks = ^TBCM2835MailboxTagGetClocks;

TBCM2835MailboxTagGetClocks = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagClocksResponse);`

BCM2835 mailbox tag get power state request

TBCM2835MailboxTagGetPowerStateRequest = record

Get Power State
`DeviceId:LongWord;`

BCM2835 mailbox tag power state response

TBCM2835MailboxTagPowerStateResponse = record

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

BCM2835 mailbox tag get power state

PBCM2835MailboxTagGetPowerState = ^TBCM2835MailboxTagGetPowerState;

TBCM2835MailboxTagGetPowerState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetPowerStateRequest);`
`1:(Response:TBCM2835MailboxTagPowerStateResponse);`

BCM2835 mailbox tag timing request

TBCM2835MailboxTagTimingRequest = record

Get Timing
`DeviceId:LongWord;`

BCM2835 mailbox tag timing response

TBCM2835MailboxTagTimingResponse = record

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

BCM2835 mailbox tag get timing

PBCM2835MailboxTagGetTiming = ^TBCM2835MailboxTagGetTiming;

TBCM2835MailboxTagGetTiming = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagTimingRequest);`
`1:(Response:TBCM2835MailboxTagTimingResponse);`

BCM2835 mailbox tag set power state request

TBCM2835MailboxTagSetPowerStateRequest = record

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

BCM2835 mailbox tag set power state

PBCM2835MailboxTagSetPowerState = ^TBCM2835MailboxTagSetPowerState;

TBCM2835MailboxTagSetPowerState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetPowerStateRequest);`
`1:(Response:TBCM2835MailboxTagPowerStateResponse);`

BCM2835 mailbox tag get clock state request

TBCM2835MailboxTagGetClockStateRequest = record

Get Clock State
`ClockId:LongWord;`

BCM2835 mailbox tag clock state response

TBCM2835MailboxTagClockStateResponse = record

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

BCM2835 mailbox tag get clock state

PBCM2835MailboxTagGetClockState = ^TBCM2835MailboxTagGetClockState;

TBCM2835MailboxTagGetClockState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetClockStateRequest);`
`1:(Response:TBCM2835MailboxTagClockStateResponse);`

BCM2835 mailbox tag set clock state request

TBCM2835MailboxTagSetClockStateRequest = record

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

BCM2835 mailbox tag set clock state

PBCM2835MailboxTagSetClockState = ^TBCM2835MailboxTagSetClockState;

TBCM2835MailboxTagSetClockState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetClockStateRequest);`
`1:(Response:TBCM2835MailboxTagClockStateResponse);`

BCM2835 mailbox tag get clock rate request

TBCM2835MailboxTagGetClockRateRequest = record

Get Clock Rate
`ClockId:LongWord;`

BCM2835 mailbox tag clock rate response

TBCM2835MailboxTagClockRateResponse = record

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

BCM2835 mailbox tag get clock rate

PBCM2835MailboxTagGetClockRate = ^TBCM2835MailboxTagGetClockRate;

TBCM2835MailboxTagGetClockRate = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetClockRateRequest);`
`1:(Response:TBCM2835MailboxTagClockRateResponse);`

BCM2835 mailbox tag set clock rate request

TBCM2835MailboxTagSetClockRateRequest = record

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

BCM2835 mailbox tag set clock rate

PBCM2835MailboxTagSetClockRate = ^TBCM2835MailboxTagSetClockRate;

TBCM2835MailboxTagSetClockRate = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetClockRateRequest);`
`1:(Response:TBCM2835MailboxTagClockRateResponse);`

BCM2835 mailbox tag get clock max rate request

TBCM2835MailboxTagGetClockMaxRateRequest = record

Get Clock Max Rate
`ClockId:LongWord;`

BCM2835 mailbox tag get clock max rate response

TBCM2835MailboxTagGetClockMaxRateResponse = record

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

BCM2835 mailbox tag get clock max rate

PBCM2835MailboxTagGetClockMaxRate = ^TBCM2835MailboxTagGetClockMaxRate;

TBCM2835MailboxTagGetClockMaxRate = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetClockMaxRateRequest);`
`1:(Response:TBCM2835MailboxTagGetClockMaxRateResponse);`

BCM2835 mailbox tag get clock min rate

PBCM2835MailboxTagGetClockMinRate = ^TBCM2835MailboxTagGetClockMinRate;

TBCM2835MailboxTagGetClockMinRate = record

Get Clock Min Rate
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetClockMaxRateRequest);`
`1:(Response:TBCM2835MailboxTagGetClockMaxRateResponse);`

BCM2835 mailbox tag get turbo request

TBCM2835MailboxTagGetTurboRequest = record

Get Turbo
`Id:LongWord;`

BCM2835 mailbox tag turbo response

TBCM2835MailboxTagTurboResponse = record

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

BCM2835 mailbox tag get turbo

PBCM2835MailboxTagGetTurbo = ^TBCM2835MailboxTagGetTurbo;

TBCM2835MailboxTagGetTurbo = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetTurboRequest);`
`1:(Response:TBCM2835MailboxTagTurboResponse);`

BCM2835 mailbox tag set turbo request

TBCM2835MailboxTagSetTurboRequest = record

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

BCM2835 mailbox tag set turbo

PBCM2835MailboxTagSetTurbo = ^TBCM2835MailboxTagSetTurbo;

TBCM2835MailboxTagSetTurbo = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetTurboRequest);`
`1:(Response:TBCM2835MailboxTagTurboResponse);`

BCM2835 mailbox tag get voltage request

TBCM2835MailboxTagGetVoltageRequest = record

Get Voltage
`VoltageId:LongWord;`

BCM2835 mailbox tag voltage response

TBCM2835MailboxTagVoltageResponse = record

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

BCM2835 mailbox tag get voltage

PBCM2835MailboxTagGetVoltage = ^TBCM2835MailboxTagGetVoltage;

TBCM2835MailboxTagGetVoltage = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2835MailboxTagVoltageResponse);`

BCM2835 mailbox tag set voltage request

TBCM2835MailboxTagSetVoltageRequest = record

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

BCM2835 mailbox tag set voltage

PBCM2835MailboxTagSetVoltage = ^TBCM2835MailboxTagSetVoltage;

TBCM2835MailboxTagSetVoltage = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetVoltageRequest);`
`1:(Response:TBCM2835MailboxTagVoltageResponse);`

BCM2835 mailbox tag get max voltage

PBCM2835MailboxTagGetMaxVoltage = ^TBCM2835MailboxTagGetMaxVoltage;

TBCM2835MailboxTagGetMaxVoltage = record

Get Max Voltage
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2835MailboxTagVoltageResponse);`

BCM2835 mailbox tag get min voltage

PBCM2835MailboxTagGetMinVoltage = ^TBCM2835MailboxTagGetMinVoltage;

TBCM2835MailboxTagGetMinVoltage = record

Get Min Voltage
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetVoltageRequest);`
`1:(Response:TBCM2835MailboxTagVoltageResponse);`

BCM2835 mailbox tag temperature request

TBCM2835MailboxTagTemperatureRequest = record

Get Temperature
`TemperatureId:LongWord;`

BCM2835 mailbox tag temperature response

TBCM2835MailboxTagTemperatureResponse = record

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

BCM2835 mailbox tag get temperature

PBCM2835MailboxTagGetTemperature = ^TBCM2835MailboxTagGetTemperature;

TBCM2835MailboxTagGetTemperature = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagTemperatureRequest);`
`1:(Response:TBCM2835MailboxTagTemperatureResponse);`

BCM2835 mailbox tag get max temperature

PBCM2835MailboxTagGetMaxTemperature = ^TBCM2835MailboxTagGetMaxTemperature;

TBCM2835MailboxTagGetMaxTemperature = record

Get Max Temp
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagTemperatureRequest);`
`1:(Response:TBCM2835MailboxTagTemperatureResponse);`

BCM2835 mailbox tag allocate memory request

TBCM2835MailboxTagAllocateMemoryRequest = record

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

BCM2835 mailbox tag allocate memory response

TBCM2835MailboxTagAllocateMemoryResponse = record

`Handle:THandle;`

BCM2835 mailbox tag allocate memory

PBCM2835MailboxTagAllocateMemory = ^TBCM2835MailboxTagAllocateMemory;

TBCM2835MailboxTagAllocateMemory = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagAllocateMemoryRequest);`
`1:(Response:TBCM2835MailboxTagAllocateMemoryResponse);`

BCM2835 mailbox tag lock memory request

TBCM2835MailboxTagLockMemoryRequest = record

Lock Memory
`Handle:THandle;`

BCM2835 mailbox tag lock memory response

TBCM2835MailboxTagLockMemoryResponse = record

`Address:LongWord;`	Bus Address

BCM2835 mailbox tag lock memory

PBCM2835MailboxTagLockMemory = ^TBCM2835MailboxTagLockMemory;

TBCM2835MailboxTagLockMemory = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2835MailboxTagLockMemoryResponse);`

BCM2835 mailbox tag unlock memory response

TBCM2835MailboxTagUnlockMemoryResponse = record

Unlock Memory
`Status:LongWord;`	0 is Success

BCM2835 mailbox tag unlock memory

PBCM2835MailboxTagUnlockMemory = ^TBCM2835MailboxTagUnlockMemory;

TBCM2835MailboxTagUnlockMemory = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2835MailboxTagUnlockMemoryResponse);`

BCM2835 mailbox tag release memory

PBCM2835MailboxTagReleaseMemory = ^TBCM2835MailboxTagReleaseMemory;

TBCM2835MailboxTagReleaseMemory = record

Release Memory
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagLockMemoryRequest);`
`1:(Response:TBCM2835MailboxTagUnlockMemoryResponse);`

BCM2835 mailbox tag execute code request

TBCM2835MailboxTagExecuteCodeRequest = record

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

BCM2835 mailbox tag execute code response

TBCM2835MailboxTagExecuteCodeResponse = record

`R0:LongWord;`

BCM2835 mailbox tag execute code

PBCM2835MailboxTagExecuteCode = ^TBCM2835MailboxTagExecuteCode;

TBCM2835MailboxTagExecuteCode = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagExecuteCodeRequest);`
`1:(Response:TBCM2835MailboxTagExecuteCodeResponse);`

BCM2835 mailbox tag execute QPU request

TBCM2835MailboxTagExecuteQPURequest = record

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

BCM2835 mailbox tag execute QPU response

TBCM2835MailboxTagExecuteQPUResponse = record

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

BCM2835 mailbox tag execute QPU

PBCM2835MailboxTagExecuteQPU = ^TBCM2835MailboxTagExecuteQPU;

TBCM2835MailboxTagExecuteQPU = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagExecuteQPURequest);`
`1:(Response:TBCM2835MailboxTagExecuteQPUResponse);`

BCM2835 mailbox tag enable QPU request

TBCM2835MailboxTagEnableQPURequest = record

`Enable:LongWord;`

BCM2835 mailbox tag enable QPU response

TBCM2835MailboxTagEnableQPUResponse = record

`Status:LongWord;`	0 is Success

BCM2835 mailbox tag enable QPU

PBCM2835MailboxTagEnableQPU = ^TBCM2835MailboxTagEnableQPU;

TBCM2835MailboxTagEnableQPU = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagEnableQPURequest);`
`1:(Response:TBCM2835MailboxTagEnableQPUResponse);`

BCM2835 mailbox tag get dispmanx handle request

TBCM2835MailboxTagGetDispmanxHandleRequest = record

Get Dispmanx Handle
`Resource:THandle;`

BCM2835 mailbox tag get dispmanx handle response

TBCM2835MailboxTagGetDispmanxHandleResponse = record

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

BCM2835 mailbox tag get dispmanx handle

PBCM2835MailboxTagGetDispmanxHandle = ^TBCM2835MailboxTagGetDispmanxHandle;

TBCM2835MailboxTagGetDispmanxHandle = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetDispmanxHandleRequest);`
`1:(Response:TBCM2835MailboxTagGetDispmanxHandleResponse);`

BCM2835 mailbox tag get EDID block request

TBCM2835MailboxTagGetEDIDBlockRequest = record

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

BCM2835 mailbox tag get EDID block response

TBCM2835MailboxTagGetEDIDBlockResponse = record

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

BCM2835 mailbox tag get EDID block

PBCM2835MailboxTagGetEDIDBlock = ^TBCM2835MailboxTagGetEDIDBlock;

TBCM2835MailboxTagGetEDIDBlock = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetEDIDBlockRequest);`
`1:(Response:TBCM2835MailboxTagGetEDIDBlockResponse);`

BCM2835 mailbox tag GPIO state request

TBCM2835MailboxTagGPIOStateRequest = record

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

BCM2835 mailbox tag GPIO state response

TBCM2835MailboxTagGPIOStateResponse = record

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

BCM2835 mailbox tag get GPIO state

PBCM2835MailboxTagGetGPIOState = ^TBCM2835MailboxTagGetGPIOState;

TBCM2835MailboxTagGetGPIOState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGPIOStateRequest);`
`1:(Response:TBCM2835MailboxTagGPIOStateResponse);`

BCM2835 mailbox tag set GPIO state

PBCM2835MailboxTagSetGPIOState = ^TBCM2835MailboxTagSetGPIOState;

TBCM2835MailboxTagSetGPIOState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGPIOStateRequest);`
`1:(Response:TBCM2835MailboxTagGPIOStateResponse);`

BCM2835 mailbox tag get GPIO config request

TBCM2835MailboxTagGetGPIOConfigRequest = record

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

BCM2835 mailbox tag get GPIO config response

TBCM2835MailboxTagGetGPIOConfigResponse = record

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

BCM2835 mailbox tag get GPIO config

PBCM2835MailboxTagGetGPIOConfig = ^TBCM2835MailboxTagGetGPIOConfig;

TBCM2835MailboxTagGetGPIOConfig = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetGPIOConfigRequest);`
`1:(Response:TBCM2835MailboxTagGetGPIOConfigResponse);`

BCM2835 mailbox tag set GPIO config request

TBCM2835MailboxTagSetGPIOConfigRequest = record

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

BCM2835 mailbox tag set GPIO config response

TBCM2835MailboxTagSetGPIOConfigResponse = record

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

BCM2835 mailbox tag set GPIO config

PBCM2835MailboxTagSetGPIOConfig = ^TBCM2835MailboxTagSetGPIOConfig;

TBCM2835MailboxTagSetGPIOConfig = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetGPIOConfigRequest);`
`1:(Response:TBCM2835MailboxTagSetGPIOConfigResponse);`

BCM2835 mailbox tag get throttled request

TBCM2835MailboxTagGetThrottledRequest = record

Get Throttled
`Value:LongWord;`

BCM2835 mailbox tag get throttled response

TBCM2835MailboxTagGetThrottledResponse = record

`Value:LongWord;`

BCM2835 mailbox tag get throttled

PBCM2835MailboxTagGetThrottled = ^TBCM2835MailboxTagGetThrottled;

TBCM2835MailboxTagGetThrottled = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetThrottledRequest);`
`1:(Response:TBCM2835MailboxTagGetThrottledResponse);`

BCM2835 mailbox tag get boot mode response

TBCM2835MailboxTagGetBootModeResponse = record

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

BCM2835 mailbox tag get boot mode

PBCM2835MailboxTagGetBootMode = ^TBCM2835MailboxTagGetBootMode;

TBCM2835MailboxTagGetBootMode = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagGetBootModeResponse);`

BCM2835 mailbox tag allocate buffer request

TBCM2835MailboxTagAllocateBufferRequest = record

Allocate Buffer
`Alignment:LongWord;`	Bytes

BCM2835 mailbox tag allocate buffer response

TBCM2835MailboxTagAllocateBufferResponse = record

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

BCM2835 mailbox tag allocate buffer

PBCM2835MailboxTagAllocateBuffer = ^TBCM2835MailboxTagAllocateBuffer;

TBCM2835MailboxTagAllocateBuffer = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagAllocateBufferRequest);`
`1:(Response:TBCM2835MailboxTagAllocateBufferResponse);`

BCM2835 mailbox tag release buffer

PBCM2835MailboxTagReleaseBuffer = ^TBCM2835MailboxTagReleaseBuffer;

TBCM2835MailboxTagReleaseBuffer = record

Release Buffer
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagNoResponse);`

BCM2835 mailbox tag blank screen request

TBCM2835MailboxTagBlankScreenRequest = record

Blank Screen
`State:LongWord;`

BCM2835 mailbox tag blank screen response

TBCM2835MailboxTagBlankScreenResponse = record

`State:LongWord;`

BCM2835 mailbox tag blank screen

PBCM2835MailboxTagBlankScreen = ^TBCM2835MailboxTagBlankScreen;

TBCM2835MailboxTagBlankScreen = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagBlankScreenRequest);`
`1:(Response:TBCM2835MailboxTagBlankScreenResponse);`

BCM2835 mailbox tag physical request

TBCM2835MailboxTagPhysicalRequest = record

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

BCM2835 mailbox tag physical response

TBCM2835MailboxTagPhysicalResponse = record

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

BCM2835 mailbox tag get physical

PBCM2835MailboxTagGetPhysical = ^TBCM2835MailboxTagGetPhysical;

TBCM2835MailboxTagGetPhysical = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagPhysicalResponse);`

BCM2835 mailbox tag test physical

PBCM2835MailboxTagTestPhysical = ^TBCM2835MailboxTagTestPhysical;

TBCM2835MailboxTagTestPhysical = record

Test Physical
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPhysicalRequest);`
`1:(Response:TBCM2835MailboxTagPhysicalResponse);`

BCM2835 mailbox tag set physical

PBCM2835MailboxTagSetPhysical = ^TBCM2835MailboxTagSetPhysical;

TBCM2835MailboxTagSetPhysical = record

Set Physical
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPhysicalRequest);`
`1:(Response:TBCM2835MailboxTagPhysicalResponse);`

BCM2835 mailbox tag virtual request

TBCM2835MailboxTagVirtualRequest = record

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

BCM2835 mailbox tag virtual response

TBCM2835MailboxTagVirtualResponse = record

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

BCM2835 mailbox tag get virtual

PBCM2835MailboxTagGetVirtual = ^TBCM2835MailboxTagGetVirtual;

TBCM2835MailboxTagGetVirtual = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagVirtualResponse);`

BCM2835 mailbox tag test virtual

PBCM2835MailboxTagTestVirtual = ^TBCM2835MailboxTagTestVirtual;

TBCM2835MailboxTagTestVirtual = record

Test Virtual
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagVirtualRequest);`
`1:(Response:TBCM2835MailboxTagVirtualResponse);`

BCM2835 mailbox tag set virtual

PBCM2835MailboxTagSetVirtual = ^TBCM2835MailboxTagSetVirtual;

TBCM2835MailboxTagSetVirtual = record

Set Virtual
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagVirtualRequest);`
`1:(Response:TBCM2835MailboxTagVirtualResponse);`

BCM2835 mailbox tag depth request

TBCM2835MailboxTagDepthRequest = record

Get Depth
`Depth:LongWord;`	Bits per pixel

BCM2835 mailbox tag depth response

TBCM2835MailboxTagDepthResponse = record

`Depth:LongWord;`	Bits per pixel

BCM2835 mailbox tag get depth

PBCM2835MailboxTagGetDepth = ^TBCM2835MailboxTagGetDepth;

TBCM2835MailboxTagGetDepth = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagDepthResponse);`

BCM2835 mailbox tag test depth

PBCM2835MailboxTagTestDepth = ^TBCM2835MailboxTagTestDepth;

TBCM2835MailboxTagTestDepth = record

Test Depth
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagDepthRequest);`
`1:(Response:TBCM2835MailboxTagDepthResponse);`

BCM2835 mailbox tag set depth

PBCM2835MailboxTagSetDepth = ^TBCM2835MailboxTagSetDepth;

TBCM2835MailboxTagSetDepth = record

Set Depth
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagDepthRequest);`
`1:(Response:TBCM2835MailboxTagDepthResponse);`

BCM2835 mailbox tag pixel order request

TBCM2835MailboxTagPixelOrderRequest = record

Get Pixel Order
`Order:LongWord;`

BCM2835 mailbox tag pixel order response

TBCM2835MailboxTagPixelOrderResponse = record

`Order:LongWord;`

BCM2835 mailbox tag get pixel order

PBCM2835MailboxTagGetPixelOrder = ^TBCM2835MailboxTagGetPixelOrder;

TBCM2835MailboxTagGetPixelOrder = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagPixelOrderResponse);`

BCM2835 mailbox tag test pixel order

PBCM2835MailboxTagTestPixelOrder = ^TBCM2835MailboxTagTestPixelOrder;

TBCM2835MailboxTagTestPixelOrder = record

Test Pixel Order
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPixelOrderRequest);`
`1:(Response:TBCM2835MailboxTagPixelOrderResponse);`

BCM2835 mailbox tag set pixel order

PBCM2835MailboxTagSetPixelOrder = ^TBCM2835MailboxTagSetPixelOrder;

TBCM2835MailboxTagSetPixelOrder = record

Set Pixel Order
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPixelOrderRequest);`
`1:(Response:TBCM2835MailboxTagPixelOrderResponse);`

BCM2835 mailbox tag alpha mode request

TBCM2835MailboxTagAlphaModeRequest = record

Get Alpha Mode
`Mode:LongWord;`

BCM2835 mailbox tag alpha mode response

TBCM2835MailboxTagAlphaModeResponse = record

`Mode:LongWord;`

BCM2835 mailbox tag get alpha mode

PBCM2835MailboxTagGetAlphaMode = ^TBCM2835MailboxTagGetAlphaMode;

TBCM2835MailboxTagGetAlphaMode = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagAlphaModeResponse);`

BCM2835 mailbox tag test alpha mode

PBCM2835MailboxTagTestAlphaMode = ^TBCM2835MailboxTagTestAlphaMode;

TBCM2835MailboxTagTestAlphaMode = record

Test Alpha Mode
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagAlphaModeRequest);`
`1:(Response:TBCM2835MailboxTagAlphaModeResponse);`

BCM2835 mailbox tag set alpha mode

PBCM2835MailboxTagSetAlphaMode = ^TBCM2835MailboxTagSetAlphaMode;

TBCM2835MailboxTagSetAlphaMode = record

Set Alpha Mode
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagAlphaModeRequest);`
`1:(Response:TBCM2835MailboxTagAlphaModeResponse);`

BCM2835 mailbox tag pitch response

TBCM2835MailboxTagPitchResponse = record

Get Pitch
`Pitch:LongWord;`	Bytes per line

BCM2835 mailbox tag get pitch

PBCM2835MailboxTagGetPitch = ^TBCM2835MailboxTagGetPitch;

TBCM2835MailboxTagGetPitch = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagPitchResponse);`

BCM2835 mailbox tag virtual offset request

TBCM2835MailboxTagVirtualOffsetRequest = record

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

BCM2835 mailbox tag virtual offset response

TBCM2835MailboxTagVirtualOffsetResponse = record

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

BCM2835 mailbox tag get virtual offset

PBCM2835MailboxTagGetVirtualOffset = ^TBCM2835MailboxTagGetVirtualOffset;

TBCM2835MailboxTagGetVirtualOffset = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagVirtualOffsetResponse);`

BCM2835 mailbox tag test virtual offset

PBCM2835MailboxTagTestVirtualOffset = ^TBCM2835MailboxTagTestVirtualOffset;

TBCM2835MailboxTagTestVirtualOffset = record

Test Virtual Offset
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagVirtualOffsetRequest);`
`1:(Response:TBCM2835MailboxTagVirtualOffsetResponse);`

BCM2835 mailbox tag set virtual offset

PBCM2835MailboxTagSetVirtualOffset = ^TBCM2835MailboxTagSetVirtualOffset;

TBCM2835MailboxTagSetVirtualOffset = record

Set Virtual Offset
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagVirtualOffsetRequest);`
`1:(Response:TBCM2835MailboxTagVirtualOffsetResponse);`

BCM2835 mailbox tag oversan request

TBCM2835MailboxTagOverscanRequest = record

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

BCM2835 mailbox tag overscan response

TBCM2835MailboxTagOverscanResponse = record

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

BCM2835 mailbox tag get overscan

PBCM2835MailboxTagGetOverscan = ^TBCM2835MailboxTagGetOverscan;

TBCM2835MailboxTagGetOverscan = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagOverscanResponse);`

BCM2835 mailbox tag test overscan

PBCM2835MailboxTagTestOverscan = ^TBCM2835MailboxTagTestOverscan;

TBCM2835MailboxTagTestOverscan = record

Test Overscan
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagOverscanRequest);`
`1:(Response:TBCM2835MailboxTagOverscanResponse);`

BCM2835 mailbox tag set overscan

PBCM2835MailboxTagSetOverscan = ^TBCM2835MailboxTagSetOverscan;

TBCM2835MailboxTagSetOverscan = record

Set Overscan
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagOverscanRequest);`
`1:(Response:TBCM2835MailboxTagOverscanResponse);`

BCM2835 mailbox tag get palette response

TBCM2835MailboxTagGetPaletteResponse = record

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

BCM2835 mailbox tag get palette

PBCM2835MailboxTagGetPalette = ^TBCM2835MailboxTagGetPalette;

TBCM2835MailboxTagGetPalette = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagGetPaletteResponse);`

BCM2835 mailbox tag palette request

TBCM2835MailboxTagPaletteRequest = 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

BCM2835 mailbox tag palette response

TBCM2835MailboxTagPaletteResponse = record

`Status:LongWord;`

BCM2835 mailbox tag test palette

PBCM2835MailboxTagTestPalette = ^TBCM2835MailboxTagTestPalette;

TBCM2835MailboxTagTestPalette = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPaletteRequest);`
`1:(Response:TBCM2835MailboxTagPaletteResponse);`

BCM2835 mailbox tag set palette

PBCM2835MailboxTagSetPalette = ^TBCM2835MailboxTagSetPalette;

TBCM2835MailboxTagSetPalette = record

Set Palette
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagPaletteRequest);`
`1:(Response:TBCM2835MailboxTagPaletteResponse);`

BCM2835 mailbox tag layer request

TBCM2835MailboxTagLayerRequest = record

Get Layer
`Layer:LongInt;`

BCM2835 mailbox tag layer response

TBCM2835MailboxTagLayerResponse = record

`Layer:LongInt;`

BCM2835 mailbox tag get layer

PBCM2835MailboxTagGetLayer = ^TBCM2835MailboxTagGetLayer;

TBCM2835MailboxTagGetLayer = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagLayerResponse);`

BCM2835 mailbox tag test layer

PBCM2835MailboxTagTestLayer = ^TBCM2835MailboxTagTestLayer;

TBCM2835MailboxTagTestLayer = record

Test layer
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagLayerRequest);`
`1:(Response:TBCM2835MailboxTagLayerResponse);`

BCM2835 mailbox tag set layer

PBCM2835MailboxTagSetLayer = ^TBCM2835MailboxTagSetLayer;

TBCM2835MailboxTagSetLayer = record

Set layer
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagLayerRequest);`
`1:(Response:TBCM2835MailboxTagLayerResponse);`

BCM2835 mailbox tag get touch response

TBCM2835MailboxTagGetTouchResponse = record

Get Touch Buffer
`Address:LongWord;`

BCM2835 mailbox tag get touch

PBCM2835MailboxTagGetTouch = ^TBCM2835MailboxTagGetTouch;

TBCM2835MailboxTagGetTouch = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagGetTouchResponse);`

BCM2835 mailbox tag set touch request

TBCM2835MailboxTagSetTouchRequest = record

`Address:LongWord;`

BCM2835 mailbox tag set touch response

TBCM2835MailboxTagSetTouchResponse = record

`Status:LongWord;`

BCM2835 mailbox tag set touch

PBCM2835MailboxTagSetTouch = ^TBCM2835MailboxTagSetTouch;

TBCM2835MailboxTagSetTouch = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetTouchRequest);`
`1:(Response:TBCM2835MailboxTagSetTouchResponse);`

BCM2835 mailbox tag get virtual GPIO response

TBCM2835MailboxTagGetVirtualGPIOResponse = record

Get Virtual GPIO Buffer
`Address:LongWord;`

BCM2835 mailbox tag get virtual GPIO

PBCM2835MailboxTagGetVirtualGPIO = ^TBCM2835MailboxTagGetVirtualGPIO;

TBCM2835MailboxTagGetVirtualGPIO = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagGetVirtualGPIOResponse);`

BCM2835 mailbox tag set virtual GPIO request

TBCM2835MailboxTagSetVirtualGPIORequest = record

BCM2835 mailbox tag set virtual GPIO response

TBCM2835MailboxTagSetVirtualGPIOResponse = record

`Status:LongWord;`

BCM2835 mailbox tag set virtual GPIO

PBCM2835MailboxTagSetVirtualGPIO = ^TBCM2835MailboxTagSetVirtualGPIO;

TBCM2835MailboxTagSetVirtualGPIO = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetVirtualGPIORequest);`
`1:(Response:TBCM2835MailboxTagSetVirtualGPIOResponse);`

BCM2835 mailbox tag test vsync

PBCM2835MailboxTagTestVsync = ^TBCM2835MailboxTagTestVsync;

TBCM2835MailboxTagTestVsync = record

Test Vsync
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagNoResponse);`

BCM2835 mailbox tag set vsync

PBCM2835MailboxTagSetVsync = ^TBCM2835MailboxTagSetVsync;

TBCM2835MailboxTagSetVsync = record

Set Vsync
`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagNoResponse);`

BCM2835 mailbox tag set backlight request

TBCM2835MailboxTagSetBacklightRequest = record

Set Backlight
`Brightness:LongWord;`

BCM2835 mailbox tag set backlight response

TBCM2835MailboxTagSetBacklightResponse = record

`Brightness:LongWord;`

BCM2835 mailbox tag set backlight

PBCM2835MailboxTagSetBacklight = ^TBCM2835MailboxTagSetBacklight;

TBCM2835MailboxTagSetBacklight = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetBacklightRequest);`
`1:(Response:TBCM2835MailboxTagSetBacklightResponse);`

BCM2835 mailbox tag get display count request

TBCM2835MailboxTagGetDisplayCountRequest = record

`Dummy:LongWord;`

BCM2835 mailbox tag get display count response

TBCM2835MailboxTagGetDisplayCountResponse = record

`DisplayCount:LongWord;`

BCM2835 mailbox tag get display count

PBCM2835MailboxTagGetDisplayCount = ^TBCM2835MailboxTagGetDisplayCount;

TBCM2835MailboxTagGetDisplayCount = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetDisplayCountRequest);`
`1:(Response:TBCM2835MailboxTagGetDisplayCountResponse);`

BCM2835 mailbox tag get display settings request

TBCM2835MailboxTagGetDisplaySettingsRequest = record

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

BCM2835 mailbox tag get display settings

PBCM2835MailboxTagGetDisplaySettings = ^TBCM2835MailboxTagGetDisplaySettings;

TBCM2835MailboxTagGetDisplaySettings = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagGetDisplaySettingsRequest);`
`1:(Response:TBCM2835MailboxTagGetDisplaySettingsResponse);`

BCM2835 mailbox tag set display number request

TBCM2835MailboxTagSetDisplayNumberRequest = record

`DisplayNumber:LongWord;`

BCM2835 mailbox tag set display number response

TBCM2835MailboxTagSetDisplayNumberResponse = record

`Dummy:LongWord;`

BCM2835 mailbox tag set display number

PBCM2835MailboxTagSetDisplayNumber = ^TBCM2835MailboxTagSetDisplayNumber;

TBCM2835MailboxTagSetDisplayNumber = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetDisplayNumberRequest);`
`1:(Response:TBCM2835MailboxTagSetDisplayNumberResponse);`

BCM2835 mailbox tag set cursor info request

TBCM2835MailboxTagSetCursorInfoRequest = 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;`

BCM2835 mailbox tag cursor response

TBCM2835MailboxTagCursorResponse = record

`Status:LongWord;`

BCM2835 mailbox tag set cursor info

PBCM2835MailboxTagSetCursorInfo = ^TBCM2835MailboxTagSetCursorInfo;

TBCM2835MailboxTagSetCursorInfo = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetCursorInfoRequest);`
`1:(Response:TBCM2835MailboxTagCursorResponse);`

BCM2835 mailbox tag set cursor state request

TBCM2835MailboxTagSetCursorStateRequest = record

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

BCM2835 mailbox tag set cursor state

PBCM2835MailboxTagSetCursorState = ^TBCM2835MailboxTagSetCursorState;

TBCM2835MailboxTagSetCursorState = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagSetCursorStateRequest);`
`1:(Response:TBCM2835MailboxTagCursorResponse);`

BCM2835 mailbox tag VCHIQ init request

TBCM2835MailboxTagVCHIQInitRequest = record

`Address:LongWord;`

BCM2835 mailbox tag VCHIQ init response

TBCM2835MailboxTagVCHIQInitResponse = record

`Status:LongWord;`	0 is Success

BCM2835 mailbox tag VCHIQ init

PBCM2835MailboxTagVCHIQInit = ^TBCM2835MailboxTagVCHIQInit;

TBCM2835MailboxTagVCHIQInit = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagVCHIQInitRequest);`
`1:(Response:TBCM2835MailboxTagVCHIQInitResponse);`

BCM2835 mailbox tag command line response

TBCM2835MailboxTagCommandLineResponse = record

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

BCM2835 mailbox tag get command line

PBCM2835MailboxTagGetCommandLine = ^TBCM2835MailboxTagGetCommandLine;

TBCM2835MailboxTagGetCommandLine = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagCommandLineResponse);`

BCM2835 mailbox tag DMA channels response

TBCM2835MailboxTagDMAChannelsResponse = record

Get DMA Channels
`Channels:LongWord;`

BCM2835 mailbox tag get DMA channels

PBCM2835MailboxTagGetDMAChannels = ^TBCM2835MailboxTagGetDMAChannels;

TBCM2835MailboxTagGetDMAChannels = record

`Header:TBCM2835MailboxTagHeader;`
`case Integer of`
`0:(Request:TBCM2835MailboxTagNoRequest);`
`1:(Response:TBCM2835MailboxTagDMAChannelsResponse);`

BCM2835 mailbox tag create buffer

PBCM2835MailboxTagCreateBuffer = ^TBCM2835MailboxTagCreateBuffer;

TBCM2835MailboxTagCreateBuffer = record

Note: A combination tag to allocate and configure a framebuffer in one request
Create Buffer
`Physical:TBCM2835MailboxTagSetPhysical;`
`Vertual:TBCM2835MailboxTagSetVirtual;`
`Depth:TBCM2835MailboxTagSetDepth;`
`Order:TBCM2835MailboxTagSetPixelOrder;`
`Mode:TBCM2835MailboxTagSetAlphaMode;`
`Offset:TBCM2835MailboxTagSetVirtualOffset;`
`Overscan:TBCM2835MailboxTagSetOverscan;`
`Allocate:TBCM2835MailboxTagAllocateBuffer;`
`Pitch:TBCM2835MailboxTagGetPitch;`

BCM2835 mailbox tag query buffer

PBCM2835MailboxTagQueryBuffer = ^TBCM2835MailboxTagQueryBuffer;

TBCM2835MailboxTagQueryBuffer = record

Note: A combination tag to query all framebuffer properties in one request
Query Buffer
`Physical:TBCM2835MailboxTagGetPhysical;`
`Vertual:TBCM2835MailboxTagGetVirtual;`
`Depth:TBCM2835MailboxTagGetDepth;`
`Order:TBCM2835MailboxTagGetPixelOrder;`
`Mode:TBCM2835MailboxTagGetAlphaMode;`
`Offset:TBCM2835MailboxTagGetVirtualOffset;`
`Overscan:TBCM2835MailboxTagGetOverscan;`
`Pitch:TBCM2835MailboxTagGetPitch;`

Public variables

None defined

Function declarations

None defined

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Unit BCM2835

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See: BCM2835-ARM-Peripherals.pdf

`BCM2835_VCIO_ALIAS = $7E000000;`