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Work on CPU GPIO #1696

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merged 7 commits into from
Sep 8, 2020
Merged

Work on CPU GPIO #1696

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66c7a29
Work on CPU GPIO
josesimoes Sep 8, 2020
f813d3c
Code style fixes (#30)
nfbot Sep 8, 2020
65b01a7
Fix pointer name for coherence with other platforms
josesimoes Sep 8, 2020
fbecc61
Code style fixes (#31)
nfbot Sep 8, 2020
00e0701
Remove unnecessary array
josesimoes Sep 8, 2020
300e98e
Code style fixes (#32)
nfbot Sep 8, 2020
ec8a9dc
Remove wrong call.
josesimoes Sep 8, 2020
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83 changes: 40 additions & 43 deletions src/PAL/Include/CPU_GPIO_decl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -7,19 +7,18 @@
#ifndef _DRIVERS_GPIO_DECL_H_
#define _DRIVERS_GPIO_DECL_H_ 1

#if defined (__GNUC__)
#if defined(__GNUC__)
#define __int64 long long
#endif
typedef unsigned __int64 CLR_UINT64;

#define GPIO_PIN_NONE 0xFFFFFFFF

#define GPIO_ATTRIBUTE_NONE 0x00
#define GPIO_ATTRIBUTE_INPUT 0x01
#define GPIO_ATTRIBUTE_OUTPUT 0x02
#define GPIO_ATTRIBUTE_ALTERNATE_A 0x04
#define GPIO_ATTRIBUTE_ALTERNATE_B 0x08
#define GPIO_PIN_NONE 0xFFFFFFFF

#define GPIO_ATTRIBUTE_NONE 0x00
#define GPIO_ATTRIBUTE_INPUT 0x01
#define GPIO_ATTRIBUTE_OUTPUT 0x02
#define GPIO_ATTRIBUTE_ALTERNATE_A 0x04
#define GPIO_ATTRIBUTE_ALTERNATE_B 0x08

// from declaration at src\Windows.Devices.Gpio\win_dev_gpio_native.h
typedef enum __nfpack GpioPinDriveMode
Expand All @@ -43,12 +42,12 @@ typedef enum __nfpack GpioPinValue

enum GPIO_INT_EDGE
{
GPIO_INT_NONE = 0,
GPIO_INT_EDGE_LOW = 1,
GPIO_INT_EDGE_HIGH = 2,
GPIO_INT_EDGE_BOTH = 3,
GPIO_INT_NONE = 0,
GPIO_INT_EDGE_LOW = 1,
GPIO_INT_EDGE_HIGH = 2,
GPIO_INT_EDGE_BOTH = 3,
GPIO_INT_LEVEL_HIGH = 4,
GPIO_INT_LEVEL_LOW = 5
GPIO_INT_LEVEL_LOW = 5
};

// struct GPIO_FLAG_RESISTOR
Expand All @@ -58,21 +57,19 @@ enum GPIO_INT_EDGE
// GPIO_RESISTOR Resistor;
// };

typedef void (*GPIO_INTERRUPT_SERVICE_ROUTINE)(GPIO_PIN pin, bool pinState);

typedef void (*GPIO_INTERRUPT_SERVICE_ROUTINE)( GPIO_PIN Pin, bool PinState, void* Param );

bool CPU_GPIO_Initialize ();
bool CPU_GPIO_Uninitialize ();

bool CPU_GPIO_Initialize();
bool CPU_GPIO_Uninitialize();

void CPU_GPIO_DisablePin ( GPIO_PIN Pin, GpioPinDriveMode driveMode, uint32_t alternateFunction);
void CPU_GPIO_DisablePin(GPIO_PIN Pin, GpioPinDriveMode driveMode, uint32_t alternateFunction);

//
// CPU_GPIO_EnableOutputPin
//
// Parameters :-
//
// Pin
// Pin
// The number of the input pin to be enabled.
// InitialState
// Inial value of pin
Expand All @@ -82,14 +79,14 @@ void CPU_GPIO_DisablePin ( GPIO_PIN Pin, GpioPinDriveMode driveMode, uint3
// Return Value
// true if the specified pin was successfully enabled as output; otherwise, false.
//
bool CPU_GPIO_EnableOutputPin( GPIO_PIN Pin, GpioPinValue InitialState, GpioPinDriveMode driveMode );
bool CPU_GPIO_EnableOutputPin(GPIO_PIN Pin, GpioPinValue InitialState, GpioPinDriveMode driveMode);

//
// CPU_GPIO_EnableInputPin
//
// Parameters :-
//
// pinNumber
// pinNumber
// The number of the input pin to be enabled.
// Debounce milisecs
// A value you can set to greater than 0 to enable glitch filtering (debouncing) for the number of millissecs
Expand All @@ -104,32 +101,35 @@ bool CPU_GPIO_EnableOutputPin( GPIO_PIN Pin, GpioPinValue InitialState, GpioPi
// Return Value
// true if the specified pin was successfully enabled; otherwise, false.
//
bool CPU_GPIO_EnableInputPin( GPIO_PIN pinNumber, CLR_UINT64 debounceTimeMilliseconds, GPIO_INTERRUPT_SERVICE_ROUTINE pin_ISR, void* isr_Param, GPIO_INT_EDGE intEdge, GpioPinDriveMode driveMode );
bool CPU_GPIO_EnableInputPin(
GPIO_PIN pinNumber,
CLR_UINT64 debounceTimeMilliseconds,
GPIO_INTERRUPT_SERVICE_ROUTINE pin_ISR,
void *isr_Param,
GPIO_INT_EDGE intEdge,
GpioPinDriveMode driveMode);

// Return current gpio pin state
GpioPinValue CPU_GPIO_GetPinState ( GPIO_PIN Pin );
GpioPinValue CPU_GPIO_GetPinState(GPIO_PIN Pin);

// Set state of output gpio pin
void CPU_GPIO_SetPinState ( GPIO_PIN Pin, GpioPinValue PinState );
void CPU_GPIO_SetPinState(GPIO_PIN Pin, GpioPinValue PinState);

// Check if pin is already reserved
// Returns true if pin is already reserved
bool CPU_GPIO_PinIsBusy ( GPIO_PIN Pin );
bool CPU_GPIO_PinIsBusy(GPIO_PIN Pin);

// Reserved or Unreserve gpio pin
// if clearing reserve always return true
// If reserving pin then return false if already reserved
bool CPU_GPIO_ReservePin ( GPIO_PIN Pin, bool fReserve );

// If reserving pin then return false if already reserved
bool CPU_GPIO_ReservePin(GPIO_PIN Pin, bool fReserve);

// Return count of gpio pins avaiable
int32_t CPU_GPIO_GetPinCount ();

int32_t CPU_GPIO_GetPinCount();

// Get / Set the pin debounce time in millisecs
uint32_t CPU_GPIO_GetPinDebounce(GPIO_PIN Pin);
bool CPU_GPIO_SetPinDebounce(GPIO_PIN pinNumber, CLR_UINT64 debounceTimeMilliseconds);

bool CPU_GPIO_SetPinDebounce(GPIO_PIN pinNumber, CLR_UINT64 debounceTimeMilliseconds);

// Validate pin and set drive mode
// return true if pin ok
Expand All @@ -139,20 +139,17 @@ bool CPU_GPIO_SetDriveMode(GPIO_PIN pinNumber, GpioPinDriveMode driveMode);
// return true if drive mode supported
bool CPU_GPIO_DriveModeSupported(GPIO_PIN pinNumber, GpioPinDriveMode driveMode);


// ==== Not implemented/used ====
// Retrieves an array containing the attributes of all the GPIO pins.
// Retrieves an array containing the attributes of all the GPIO pins.
// void CPU_GPIO_GetPinsMap(uint8_t* pins, size_t size);

// Retrieves the resistor modes supported by a designated GPIO pin.
//uint8_t CPU_GPIO_GetSupportedResistorModes(GPIO_PIN pin);
// Retrieves the resistor modes supported by a designated GPIO pin.
// uint8_t CPU_GPIO_GetSupportedResistorModes(GPIO_PIN pin);

// Retrieves the interrupt edge modes supported by a designated GPIO pin.
//uint8_t CPU_GPIO_GetSupportedInterruptModes(GPIO_PIN pin);

//Retrieves the GPIO attributes of a specified pin. ( none=0, input=1, output=2, altA=4, altB=8 etc )
//uint32_t CPU_GPIO_Attributes(GPIO_PIN Pin);
// Retrieves the interrupt edge modes supported by a designated GPIO pin.
// uint8_t CPU_GPIO_GetSupportedInterruptModes(GPIO_PIN pin);

// Retrieves the GPIO attributes of a specified pin. ( none=0, input=1, output=2, altA=4, altB=8 etc )
// uint32_t CPU_GPIO_Attributes(GPIO_PIN Pin);

#endif // _DRIVERS_GPIO_DECL_H_

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