Data Structures
struct	GpioRegistration

Typedefs
typedef struct GpioRegistration	GpioRegistration

Enumerations
enum	{ GPIO_NUM_PORTS = GPIO_NUMBER_OF_PORTS, GPIO_MAX_NUM_PINS_PER_PORT = GPIO_MAX_PINS_PER_PORT, GPIO_NUM_PINS = GPIO_NUMBER_OF_PINS }
	Defines a GPIO driver class. More...

enum	{ GPIO_PIN_P0 = 0, GPIO_PIN_P1, GPIO_PIN_P2, GPIO_PIN_P3, GPIO_PIN_P4, GPIO_PIN_P5, GPIO_PIN_P6, GPIO_PIN_P7, GPIO_PIN_P8, GPIO_PIN_P9, GPIO_PIN_P10, GPIO_PIN_P11, GPIO_PIN_P12, GPIO_PIN_P13, GPIO_PIN_P14, GPIO_PIN_P15, GPIO_PIN_P16, GPIO_PIN_P17, GPIO_PIN_P18, GPIO_PIN_P19, GPIO_PIN_P20, GPIO_PIN_P21, GPIO_PIN_P22, GPIO_PIN_P23, GPIO_PIN_P24, GPIO_PIN_P25, GPIO_PIN_P26, GPIO_PIN_P27, GPIO_PIN_P28, GPIO_PIN_P29, GPIO_PIN_P30, GPIO_PIN_P31, GPIO_PIN_P32, GPIO_PIN_P33, GPIO_PIN_P34, GPIO_PIN_P35, GPIO_PIN_P36, GPIO_PIN_P37, GPIO_PIN_P38, GPIO_PIN_P39 }
	GPIO Logical pin numbers.

enum	{ GPIO_EDGE_TRIGGER_MASK = 0x0001, GPIO_EDGE_TRIGGER = 0x0001, GPIO_LEVEL_TRIGGER = 0x0000, GPIO_TRIGGER_POLARITY_MASK = 0x0002, GPIO_TRIGGER_NEG = 0x0002, GPIO_DUAL_EDGE_TRIGGER_MASK = 0x0004, GPIO_EDGE_TRIGGER_BOTH = 0x0004, GPIO_EDGE_TRIGGER_SINGLE = 0x0000, GPIO_INTERRUPT_ENABLE_MASK = 0x0008, GPIO_INTERRUPT_ENABLE = 0x0008, GPIO_INTERRUPT_DISABLE = 0x0000, GPIO_EN_INT_MASK = GPIO_EDGE_TRIGGER_MASK \| GPIO_TRIGGER_POLARITY_MASK \| GPIO_DUAL_EDGE_TRIGGER_MASK \| GPIO_INTERRUPT_ENABLE_MASK, GPIO_EN_INT_LEVEL_HIGH = GPIO_INTERRUPT_ENABLE \| GPIO_LEVEL_TRIGGER, GPIO_EN_INT_LEVEL_LOW = GPIO_INTERRUPT_ENABLE \| GPIO_LEVEL_TRIGGER \| GPIO_TRIGGER_NEG, GPIO_EN_INT_RISING_EDGE = GPIO_INTERRUPT_ENABLE \| GPIO_EDGE_TRIGGER, GPIO_EN_INT_FALLING_EDGE = GPIO_INTERRUPT_ENABLE \| GPIO_EDGE_TRIGGER \| GPIO_TRIGGER_NEG, GPIO_EN_INT_BOTH_EDGE = GPIO_INTERRUPT_ENABLE \| GPIO_EDGE_TRIGGER \| GPIO_EDGE_TRIGGER_BOTH, GPIO_INPUT_ENABLE = 0x0000, GPIO_OUTPUT_DISABLE = 0x0000, GPIO_OUTPUT_ENABLE = 0x4000, GPIO_KS_OUTPUT_ENABLE = 0x0010, GPIO_OUTPUT_FN_SEL_MASK = 0x0030, GPIO_OUTPUT_FN_SEL_SHIFT = 4, GPIO_GLOBAL_INPUT_ENABLE = 0x0000, GPIO_GLOBAL_INPUT_DISABLE = 0x0040, GPIO_PULL_UP_DOWN_NONE = 0x0000, GPIO_PULL_UP = 0x0400, GPIO_PULL_DOWN = 0x0200, GPIO_INPUT_DISABLE = 0x0600, GPIO_DRIVE_SEL_MASK = 0x0800, GPIO_DRIVE_SEL_LOWEST = 0x0000, GPIO_DRIVE_SEL_MIDDLE_0 = 0x0000, GPIO_DRIVE_SEL_MIDDLE_1 = 0x0800, GPIO_DRIVE_SEL_HIGHEST = 0x0800, GPIO_HYSTERESIS_MASK = 0x2000, GPIO_HYSTERESIS_ON = 0x2000, GPIO_HYSTERESIS_OFF = 0x0000 }
	The following enum defines the constant values for the GPIO driver. More...

enum	tGPIO_PIN_OUTPUT_CONFIG { GPIO_PIN_OUTPUT_LOW, GPIO_PIN_OUTPUT_HIGH }
	Pin output config.

enum	tGPIO_PIN_INPUT_VALUE { GPIO_PIN_INPUT_LOW, GPIO_PIN_INPUT_HIGH }
	Pin input values.

Functions
void	gpio_init (void)

void	gpio_configurePin (BYTE port, BYTE pin, UINT16 config, BYTE outputVal)
	ConfigurePin maps a GPIO pin to a config value.

void	gpio_configurePinWithSingleBytePortPinNum (BYTE gpio, UINT16 config, BYTE outputVal)

void	gpio_configureAll (void)
	Configures all GPIO pins according to the values from the configuration record.

UINT16	gpio_getPinConfig (BYTE port, BYTE pin)
	Retrieve the configuration of the specified pin.

void	gpio_setPinOutput (BYTE port, BYTE pin, BYTE val)
	Set pin output for a specific pin.

void	gpio_lhlInterrupt (void)

void	gpio_registerForInterrupt (UINT16 masks[], void(userfn)(void , UINT8), void *userdata)

BOOL32	gpio_validatePortPin (BYTE port, BYTE pin)

BYTE	gpio_getPinOutput (BYTE port, BYTE pin)
	Get the programmed output value of a pin. More...

BYTE	gpio_getPinInput (BYTE port, BYTE pin)
	Read the current value at a pin. More...

BYTE	gpio_getPinInterruptStatus (BYTE port, BYTE pin)
	Get the interrupt status of a pin.

void	gpio_clearPinInterruptStatus (BYTE port, BYTE pin)
	Clear the interrupt status of a pin.

UINT16	gpio_getPortOutput (BYTE port)
	Get the programmed output value of a port. More...

void	gpio_setPortOutput (BYTE port, UINT16 val)
	Set the output value of a port. More...

UINT16	gpio_getPortInput (BYTE port)
	Read the current value at a port. More...

UINT16	gpio_getPortInterruptStatus (BYTE port)
	Get the interrupt status of a port. More...

void	gpio_clearPortInterruptStatus (BYTE port, UINT16 mask)
	Clear the interrupt status of multiple bits in a port. More...

void	gpio_configurePortPins (BYTE port, BYTE startPin, BYTE endPin, UINT16 Config, BYTE outputVal)

void	gpio_inputDisableAll (void)

Detailed Description

Enumeration Type Documentation

anonymous enum

Defines a GPIO driver class.

Applications use this driver to obtain the status from and control the behavior of the GPIO driver.GPIO port and pin number constraints expressed in values.

anonymous enum

The following enum defines the constant values for the GPIO driver.

The first twelve entries are the configuration masks for GPIO. A combination of them might be used together; for example a value INPUT_DISABLE_MASK|OUTPUT_ENABLE_MASK can be used to set a pin. The "configValue" of the struct "GpioConfigEntry" can be set using that value (the logical or of configuration options). Each of the pin can be configured in a specific way [using the value].

Enumerator
GPIO_EDGE_TRIGGER_MASK	iocfg_p::_adr ; = [0,1,2....37,38,39] Each GPIO has a set of configuration signals in one register ; iocfg_p::_adr[0] = "edge_trigger" GPIO configuration bit 0, Interrupt type defines Comments from User Guide: none
GPIO_TRIGGER_POLARITY_MASK	iocfg_p::_adr[1] = "neg_edge" GPIO configuration bit 1, Interrupt polarity defines Comments from User Guide: none
GPIO_DUAL_EDGE_TRIGGER_MASK	iocfg_p::_adr[2] = "dual_edge" GPIO configuration bit 2, single/dual edge defines Comments from User Guide: none
GPIO_INTERRUPT_ENABLE_MASK	iocfg_p::_adr[3] = "interrupt_en" GPIO configuration bit 3, interrupt enable/disable defines Comments from User Guide: This bit is used to mask GPIO asynch wake up (to Baseband PMU) and synchronous interrupt status - gpio_int_st_px
GPIO_EN_INT_MASK	iocfg_p::_adr[0:3] GPIO configuration bit 0:3, Summary of Interrupt enabling type
GPIO_INPUT_ENABLE	iocfg_p::_adr[4:5] = "GPIO o/p buffer control" AND iocfg_p::_adr[14] = "o/p value multiplexing control" GPIO configuration bit 4:5,and 14 output enable control and muxing control Comments from the User Guide : none
GPIO_GLOBAL_INPUT_ENABLE	iocfg_p::_adr[6] GPIO configuration bit 6, "Global_input_disable" Disable bit This bit when set to "1" , P0 input_disable signal will control ALL GPIOs. Default value (after power up or a reset event) is "0".
GPIO_PULL_UP_DOWN_NONE	iocfg_p::_adr[7] GPIO configuration bit 7, reserved iocfg_p::_adr[8] GPIO configuration bit 8, reserved iocfg_p::_adr[10:9] = "pullup/pulldown" GPIO configuration bit 9 and bit 10, pull- up and pull-down enable Comments from the User Guide: default value is [0,0] , means no pull resistor.
GPIO_DRIVE_SEL_MASK	iocfg_p::_adr[11] = GPIO configuration bit 11, iocfg_p0[11] controls the drive strength of the following GPIOs p[0:25], p[30:39]; iocfg_p26[11] controls the drive strength of the GPIOs p[26:29]
GPIO_HYSTERESIS_MASK	iocfg_p::_adr[12] GPIO configuration bit 12, reserved iocfg_p::_adr[13] = "Input Hysteresis" GPIO configuration bit 13, hysteresis control iocfg_p0[13] controls the hysteresis of the following GPIOs p[0:25], p[30:39]; iocfg_p26[13] controls the hysteresis of the GPIOs p[26:29]

Function Documentation

void gpio_clearPortInterruptStatus	(	BYTE	port,
		UINT16	mask
	)

Clear the interrupt status of multiple bits in a port.

The mask defines which interrupt bits are cleared. Only bits that are used for edge/level detection/interrupt should be cleared. Other bits should be left alone.

Parameters

port	- port id(0-4). Must be in range or results are undefined.
mask	- mask of which bits are cleared

BYTE gpio_getPinInput	(	BYTE	port,
		BYTE	pin
	)

Read the current value at a pin.

Note that for this to be valid, the pin must be configured with input enabled.

BYTE gpio_getPinOutput	(	BYTE	port,
		BYTE	pin
	)

Get the programmed output value of a pin.

Note that this does not return the current pin value. It returns the value that the pin would attempt to drive if it is configured as output.

UINT16 gpio_getPortInput ( BYTE port )

Read the current value at a port.

For this to be valid, the pins must be configured with input enabled. Pins which are configured with input disabled will always return the same value (0 or 1) but the value is not specified.

Parameters

port	- port id(0-1). Must be in range or results are undefined.

Returns: Port input value.

UINT16 gpio_getPortInterruptStatus ( BYTE port )

Get the interrupt status of a port.

Pins which are not used for interrupts and do not have input disabled may report interrupts. Its the user's responsibility to mask out these bits.

Parameters

port	- port id(0-4). Must be in range or results are undefined.

Returns: Interrupt status for the port.

UINT16 gpio_getPortOutput ( BYTE port )

Get the programmed output value of a port.

Parameters

port	- port id(0-4). Must be in range or results are undefined.

Returns: Returns the value that the pins on the port would attempt to drive if they are configured as outputs. It does not return the current port value.

void gpio_setPortOutput	(	BYTE	port,
		UINT16	val
	)

Set the output value of a port.

This only affects pins which are configured as outputs. Pins which are not outputs will still get the specified value written in the output register, but since they are not configured as utputs, the value will not be driven out on the pin.

Parameters

port	- port id(0-3). Must be in range or results are undefined.
val	- value to be set


			AIROC^™ BTSDK v4.6 - Documentation

Data Structures

Typedefs

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

= [0,1,2....37,38,39]

Function Documentation