_BCMSDHOST_HOST Struct Reference

#include <bcmsdhost.h>

Data Fields
SDHCI_HOST	sdhci
uint32_t	irq
	The IRQ number for this device.
SPIN_HANDLE	lock
	Host lock (Differs from lock in Host portion) (Spin lock due to use by interrupt handler).
LONGBOOL	enablefiq
	Use FIQ instead of IRQ.
uint32_t	gpiofirst
	The starting pin number for GPIO assignments (or GPIO_PIN_UNKNOWN if externally configured).
uint32_t	gpiolast
	The ending pin number for GPIO assignments (or GPIO_PIN_UNKNOWN if externally configured).
uint32_t	gpiofunction
	The function number for GPIO assignments (or GPIO_FUNCTION_UNKNOWN if externally configured).
uint32_t	clockdivider
	Cached Clock Divider (CDIV) register.
uint32_t	hostconfiguration
	Cached Host Configuration (HCFG) register.
LONGBOOL	firmwaresetsclockdivider
	True if the firmware controls the clock divider.
uint32_t	commandquickpollretries
uint32_t	nanosecondsperfifoword
LONGBOOL	allowdma
	Allow DMA to be used for data transfers.
LONGBOOL	resetclock
	Reset the clock for the next request.
uint32_t	maxdelay
	Maximum length of time spent waiting (in Milliseconds).
int64_t	stoptime
	When the last stop was issued (in Clock Ticks).
uint32_t	drainwords
	Last words of FIFO to drain on DMA read.
uint32_t	drainoffset
	Offset for data during FIFO drain on DMA read.
LONGBOOL	usesbc
	Use CMD23 (Set Block Count) for the current transfer.
LONGBOOL	usebusy
	Wait for busy interrupt on current command.
uint32_t	delayafterstop
	Minimum time between stop and subsequent data transfer (in Microseconds).
uint32_t	delayafterthisstop
	Minimum time between this stop and subsequent data transfer (in Microseconds).
uint32_t	useroverclock50
	User's preferred frequency to use when 50MHz is requested (in MHz).
uint32_t	overclock50
	Frequency to use when 50MHz is requested (in MHz).
uint32_t	overclock
	Current frequency if overclocked, else zero (in Hz).
uint32_t	piolimit
	Maximum block count for PIO (0 = always DMA / 0x7FFFFFF = always PIO).
uint32_t	piotimeout
	PIO Read or Write block timeout (in milliseconds).

Field Documentation

sdhci

SDHCI_HOST sdhci

irq

uint32_t irq

The IRQ number for this device.

lock

SPIN_HANDLE lock

Host lock (Differs from lock in Host portion) (Spin lock due to use by interrupt handler).

enablefiq

LONGBOOL enablefiq

Use FIQ instead of IRQ.

gpiofirst

uint32_t gpiofirst

The starting pin number for GPIO assignments (or GPIO_PIN_UNKNOWN if externally configured).

gpiolast

uint32_t gpiolast

The ending pin number for GPIO assignments (or GPIO_PIN_UNKNOWN if externally configured).

gpiofunction

uint32_t gpiofunction

The function number for GPIO assignments (or GPIO_FUNCTION_UNKNOWN if externally configured).

clockdivider

uint32_t clockdivider

Cached Clock Divider (CDIV) register.

hostconfiguration

uint32_t hostconfiguration

Cached Host Configuration (HCFG) register.

firmwaresetsclockdivider

LONGBOOL firmwaresetsclockdivider

True if the firmware controls the clock divider.

commandquickpollretries

uint32_t commandquickpollretries

nanosecondsperfifoword

uint32_t nanosecondsperfifoword

allowdma

LONGBOOL allowdma

Allow DMA to be used for data transfers.

resetclock

LONGBOOL resetclock

Reset the clock for the next request.

maxdelay

uint32_t maxdelay

Maximum length of time spent waiting (in Milliseconds).

stoptime

int64_t stoptime

When the last stop was issued (in Clock Ticks).

drainwords

uint32_t drainwords

Last words of FIFO to drain on DMA read.

drainoffset

uint32_t drainoffset

Offset for data during FIFO drain on DMA read.

usesbc

LONGBOOL usesbc

Use CMD23 (Set Block Count) for the current transfer.

usebusy

LONGBOOL usebusy

Wait for busy interrupt on current command.

delayafterstop

uint32_t delayafterstop

Minimum time between stop and subsequent data transfer (in Microseconds).

delayafterthisstop

uint32_t delayafterthisstop

Minimum time between this stop and subsequent data transfer (in Microseconds).

useroverclock50

uint32_t useroverclock50

User's preferred frequency to use when 50MHz is requested (in MHz).

overclock50

uint32_t overclock50

Frequency to use when 50MHz is requested (in MHz).

overclock

uint32_t overclock

Current frequency if overclocked, else zero (in Hz).

piolimit

uint32_t piolimit

Maximum block count for PIO (0 = always DMA / 0x7FFFFFF = always PIO).

piotimeout

uint32_t piotimeout

PIO Read or Write block timeout (in milliseconds).

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The documentation for this struct was generated from the following file:

• ultibo/drivers/bcmsdhost.h