* // Initialize the SPI driver before first use
* SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING |
* SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
- *
+ *
* // Send several bytes, ignoring the returned data
* SPI_SendByte(0x01);
* SPI_SendByte(0x02);
* SPI_SendByte(0x03);
- *
+ *
* // Receive several bytes, sending a dummy 0x00 byte each time
* uint8_t Byte1 = SPI_ReceiveByte();
* uint8_t Byte2 = SPI_ReceiveByte();
* uint8_t Byte3 = SPI_ReceiveByte();
- *
+ *
* // Send a byte, and store the received byte from the same transaction
* uint8_t ResponseByte = SPI_TransferByte(0xDC);
* \endcode
* \param[in] SPIOptions SPI Options, a mask consisting of one of each of the \c SPI_SPEED_*,
* \c SPI_SCK_*, \c SPI_SAMPLE_*, \c SPI_ORDER_* and \c SPI_MODE_* masks.
*/
+ static inline void SPI_Init(const uint8_t SPIOptions);
static inline void SPI_Init(const uint8_t SPIOptions)
{
/* Prevent high rise times on PB.0 (/SS) from forcing a change to SPI slave mode */
}
/** Turns off the SPI driver, disabling and returning used hardware to their default configuration. */
+ static inline void SPI_Disable(void);
static inline void SPI_Disable(void)
{
DDRB &= ~((1 << 1) | (1 << 2));
* \param[in] Prescale Prescaler to use when determining the bus frequency, a \c TWI_BIT_PRESCALE_* value.
* \param[in] BitLength Length of the bits sent on the bus.
*/
- static inline void TWI_Init(const uint8_t Prescale, const uint8_t BitLength) ATTR_ALWAYS_INLINE;
- static inline void TWI_Init(const uint8_t Prescale, const uint8_t BitLength)
+ static inline void TWI_Init(const uint8_t Prescale,
+ const uint8_t BitLength) ATTR_ALWAYS_INLINE;
+ static inline void TWI_Init(const uint8_t Prescale,
+ const uint8_t BitLength)
{
TWCR |= (1 << TWEN);
TWSR = Prescale;
* SPI_Init(&SPIC,
* SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING |
* SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
- *
+ *
* // Send several bytes, ignoring the returned data
* SPI_SendByte(&SPIC, 0x01);
* SPI_SendByte(&SPIC, 0x02);
* SPI_SendByte(&SPIC, 0x03);
- *
+ *
* // Receive several bytes, sending a dummy 0x00 byte each time
* uint8_t Byte1 = SPI_ReceiveByte(&SPIC);
* uint8_t Byte2 = SPI_ReceiveByte(&SPIC);
* uint8_t Byte3 = SPI_ReceiveByte(&SPIC);
- *
+ *
* // Send a byte, and store the received byte from the same transaction
* uint8_t ResponseByte = SPI_TransferByte(&SPIC, 0xDC);
* \endcode
* \c SPI_SCK_*, \c SPI_SAMPLE_*, \c SPI_ORDER_* and \c SPI_MODE_* masks.
*/
static inline void SPI_Init(SPI_t* const SPI,
+ const uint8_t SPIOptions) ATTR_NON_NULL_PTR_ARG(1);
+ static inline void SPI_Init(SPI_t* const SPI,
const uint8_t SPIOptions)
{
SPI->CTRL = (SPIOptions | SPI_ENABLE_bm);
*
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
*/
+ static inline void SPI_Disable(SPI_t* const SPI) ATTR_NON_NULL_PTR_ARG(1);
static inline void SPI_Disable(SPI_t* const SPI)
{
SPI->CTRL &= ~SPI_ENABLE_bm;
*
* \return \ref SPI_MODE_MASTER if the interface is currently in SPI Master mode, \ref SPI_MODE_SLAVE otherwise
*/
- static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI) ATTR_ALWAYS_INLINE;
+ static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI)
{
return (SPI->CTRL & SPI_MASTER_bm);
* \return Response byte from the attached SPI device.
*/
static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
- const uint8_t Byte) ATTR_ALWAYS_INLINE;
+ const uint8_t Byte) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
const uint8_t Byte)
{
* \param[in] Byte Byte to send through the SPI interface.
*/
static inline void SPI_SendByte(SPI_t* const SPI,
- const uint8_t Byte) ATTR_ALWAYS_INLINE;
+ const uint8_t Byte) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline void SPI_SendByte(SPI_t* const SPI,
const uint8_t Byte)
{
*
* \return The response byte from the attached SPI device.
*/
- static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
+ static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI)
{
SPI->DATA = 0;
* \code
* // Initialize the Master SPI mode USART driver before first use, with 1Mbit baud
* SerialSPI_Init(&USARTD0, (USART_SPI_SCK_LEAD_RISING | USART_SPI_SAMPLE_LEADING | USART_SPI_ORDER_MSB_FIRST), 1000000);
- *
+ *
* // Send several bytes, ignoring the returned data
* SerialSPI_SendByte(&USARTD0, 0x01);
* SerialSPI_SendByte(&USARTD0, 0x02);
* SerialSPI_SendByte(&USARTD0, 0x03);
- *
+ *
* // Receive several bytes, sending a dummy 0x00 byte each time
* uint8_t Byte1 = SerialSPI_ReceiveByte(&USARTD);
* uint8_t Byte2 = SerialSPI_ReceiveByte(&USARTD);
* uint8_t Byte3 = SerialSPI_ReceiveByte(&USARTD);
- *
+ *
* // Send a byte, and store the received byte from the same transaction
* uint8_t ResponseByte = SerialSPI_TransferByte(&USARTD0, 0xDC);
* \endcode
/** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out LSB first. */
#define USART_SPI_ORDER_LSB_FIRST USART_UDORD_bm
- //@}
+ //@}
/* Inline Functions: */
- /** Initialize the USART module in Master SPI mode.
+ /** Initialize the USART module in Master SPI mode.
*
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
* \param[in] SPIOptions USART SPI Options, a mask consisting of one of each of the \c USART_SPI_SCK_*,
*/
static inline void SerialSPI_Init(USART_t* const USART,
const uint8_t SPIOptions,
+ const uint32_t BaudRate) ATTR_NON_NULL_PTR_ARG(1);
+ static inline void SerialSPI_Init(USART_t* const USART,
+ const uint8_t SPIOptions,
const uint32_t BaudRate)
{
uint16_t BaudValue = SERIAL_SPI_UBBRVAL(BaudRate);
-
+
USART->BAUDCTRLB = (BaudValue >> 8);
USART->BAUDCTRLA = (BaudValue & 0xFF);
-
+
USART->CTRLC = (USART_CMODE_MSPI_gc | SPIOptions);
USART->CTRLB = (USART_RXEN_bm | USART_TXEN_bm);
}
-
+
/** Turns off the USART driver, disabling and returning used hardware to their default configuration.
*
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
*/
+ static inline void SerialSPI_Disable(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline void SerialSPI_Disable(USART_t* const USART)
{
USART->CTRLA = 0;
USART->CTRLB = 0;
USART->CTRLC = 0;
}
-
+
/** Sends and receives a byte through the USART SPI interface, blocking until the transfer is complete.
*
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
* \return Response byte from the attached SPI device.
*/
static inline uint8_t SerialSPI_TransferByte(USART_t* const USART,
+ const uint8_t DataByte) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
+ static inline uint8_t SerialSPI_TransferByte(USART_t* const USART,
const uint8_t DataByte)
{
USART->DATA = DataByte;
* \param[in] DataByte Byte to send through the USART SPI interface.
*/
static inline void SerialSPI_SendByte(USART_t* const USART,
+ const uint8_t DataByte) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1)
+ static inline void SerialSPI_SendByte(USART_t* const USART,
const uint8_t DataByte)
{
SerialSPI_TransferByte(USART, DataByte);
*
* \return The response byte from the attached SPI device.
*/
+ static inline uint8_t SerialSPI_ReceiveByte(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
static inline uint8_t SerialSPI_ReceiveByte(USART_t* const USART)
{
return SerialSPI_TransferByte(USART, 0);
}
-
+
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)
}
Serial_SendByte(USART, *((uint8_t*)Buffer++));
}
-void Serial_CreateStream(FILE* Stream)
+void Serial_CreateStream(FILE* const Stream)
{
if (!(Stream))
{
*Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar, _FDEV_SETUP_RW);
}
-void Serial_CreateBlockingStream(FILE* Stream)
+void Serial_CreateBlockingStream(FILE* const Stream)
{
if (!(Stream))
{
* \param[in] Length Length of the data to send, in bytes.
*/
void Serial_SendData(USART_t* const USART,
- const void* Buffer, uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
+ const void* Buffer,
+ uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
/** Creates a standard character stream from the USART so that it can be used with all the regular functions
* in the avr-libc \c <stdio.h> library that accept a \c FILE stream as a destination (e.g. \c fprintf). The created
*
* \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
*/
- void Serial_CreateStream(FILE* Stream);
+ void Serial_CreateStream(FILE* const Stream);
/** Identical to \ref Serial_CreateStream(), except that reads are blocking until the calling stream function terminates
* the transfer.
*
* \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
*/
- void Serial_CreateBlockingStream(FILE* Stream);
+ void Serial_CreateBlockingStream(FILE* const Stream);
/* Inline Functions: */
/** Initializes the USART, ready for serial data transmission and reception. This initializes the interface to
*/
static inline void Serial_Init(USART_t* const USART,
const uint32_t BaudRate,
+ const bool DoubleSpeed) ATTR_NON_NULL_PTR_ARG(1);
+ static inline void Serial_Init(USART_t* const USART,
+ const uint32_t BaudRate,
const bool DoubleSpeed)
{
uint16_t BaudValue = (DoubleSpeed ? SERIAL_2X_UBBRVAL(BaudRate) : SERIAL_UBBRVAL(BaudRate));
*
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
*/
+ static inline void Serial_Disable(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline void Serial_Disable(USART_t* const USART)
{
USART->CTRLA = 0;
*
* \return Boolean \c true if a character has been received, \c false otherwise.
*/
- static inline bool Serial_IsCharReceived(USART_t* const USART) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
+ static inline bool Serial_IsCharReceived(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
static inline bool Serial_IsCharReceived(USART_t* const USART)
{
return ((USART->STATUS & USART_RXCIF_bm) ? true : false);
* \param[in] DataByte Byte to transmit through the USART.
*/
static inline void Serial_SendByte(USART_t* const USART,
- const char DataByte) ATTR_ALWAYS_INLINE;
+ const char DataByte) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline void Serial_SendByte(USART_t* const USART,
const char DataByte)
{
*
* \return Next byte received from the USART, or a negative value if no byte has been received.
*/
- static inline int16_t Serial_ReceiveByte(USART_t* const USART) ATTR_ALWAYS_INLINE;
+ static inline int16_t Serial_ReceiveByte(USART_t* const USART) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
static inline int16_t Serial_ReceiveByte(USART_t* const USART)
{
if (!(Serial_IsCharReceived(USART)))
*
* \return Boolean \c true if a packet is waiting to be read in by the host, \c false otherwise.
*/
- bool RNDIS_Device_IsPacketReceived(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo);
+ bool RNDIS_Device_IsPacketReceived(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Retrieves the next pending packet from the device, discarding the remainder of the RNDIS packet header to leave
* only the packet contents for processing by the device in the nominated buffer.
*/
uint8_t RNDIS_Device_ReadPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
void* Buffer,
- uint16_t* const PacketLength);
+ uint16_t* const PacketLength) ATTR_NON_NULL_PTR_ARG(1);
/** Sends the given packet to the attached RNDIS device, after adding a RNDIS packet message header.
*
*/
uint8_t RNDIS_Device_SendPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
void* Buffer,
- const uint16_t PacketLength);
+ const uint16_t PacketLength) ATTR_NON_NULL_PTR_ARG(1);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
*/
uint8_t AOA_Host_SendData(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const void* const Buffer,
- const uint16_t Length);
+ const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
/** Sends a given null-terminated string to the attached USB device, if connected. If a device is not connected when the
* function is called, the string is discarded. Bytes will be queued for transmission to the device until either the pipe
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed.
*/
void AOA_Host_CreateStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
- FILE* const Stream);
+ FILE* const Stream) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Identical to \ref AOA_Host_CreateStream(), except that reads are blocking until the calling stream function terminates
* the transfer. While blocking, the USB and AOA service tasks are called repeatedly to maintain USB communications.
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed.
*/
void AOA_Host_CreateBlockingStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
- FILE* const Stream);
+ FILE* const Stream) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
*/
uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
const void* const Buffer,
- const uint16_t Length);
+ const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
/** Sends a given null-terminated string to the attached USB device, if connected. If a device is not connected when the
* function is called, the string is discarded. Bytes will be queued for transmission to the device until either the pipe
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed.
*/
void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
- FILE* const Stream);
+ FILE* const Stream) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
/** Identical to \ref CDC_Host_CreateStream(), except that reads are blocking until the calling stream function terminates
* the transfer. While blocking, the USB and CDC service tasks are called repeatedly to maintain USB communications.
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed.
*/
void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
- FILE* const Stream);
+ FILE* const Stream) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
#endif
/** CDC class driver event for a control line state change on a CDC host interface. This event fires each time the device notifies
*
* \return Total number of buffered bytes received from the device.
*/
- uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);
+ uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Reads a byte of data from the device. If no data is waiting to be read of if a USB device is not connected, the function
* returns a negative value. The \ref PRNT_Host_BytesReceived() function may be queried in advance to determine how many bytes
*
* \return Next received byte from the device, or a negative value if no data received.
*/
- int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);
+ int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a
* Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus
* uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
* USB_Descriptor_Configuration_Header_t* ConfigHeaderPtr = DESCRIPTOR_PCAST(CurrDescriptor,
* USB_Descriptor_Configuration_Header_t);
- *
+ *
* // Can now access elements of the configuration header struct using the -> indirection operator
* \endcode
*/
* uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
* USB_Descriptor_Configuration_Header_t ConfigHeader = DESCRIPTOR_CAST(CurrDescriptor,
* USB_Descriptor_Configuration_Header_t);
- *
+ *
* // Can now access elements of the configuration header struct using the . operator
* \endcode
*/
* Usage Example:
* \code
* uint8_t EndpointSearcher(void* CurrentDescriptor); // Comparator Prototype
- *
+ *
* uint8_t EndpointSearcher(void* CurrentDescriptor)
* {
* if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
* else
* return DESCRIPTOR_SEARCH_NotFound;
* }
- *
+ *
* //...
- *
+ *
* // After retrieving configuration descriptor:
* if (USB_Host_GetNextDescriptorComp(&BytesRemaining, &CurrentConfigLoc, EndpointSearcher) ==
* Descriptor_Search_Comp_Found)
*/
uint8_t USB_GetNextDescriptorComp(uint16_t* const BytesRem,
void** const CurrConfigLoc,
- ConfigComparatorPtr_t const ComparatorRoutine);
+ ConfigComparatorPtr_t const ComparatorRoutine) ATTR_NON_NULL_PTR_ARG(1)
+ ATTR_NON_NULL_PTR_ARG(2) ATTR_NON_NULL_PTR_ARG(3);
/* Inline Functions: */
/** Skips over the current sub-descriptor inside the configuration descriptor, so that the pointer then
* Usage Example:
* \code
* #include <LUFA/Platform/XMEGA/ClockManagement.h>
- *
+ *
* void main(void)
* {
* // Start the PLL to multiply the 2MHz RC oscillator to F_CPU and switch the CPU core to run from it
* XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
* XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
- *
+ *
* // Start the 32MHz internal RC oscillator and start the DFLL to increase it to F_USB using the USB SOF as a reference
* XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
* XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
* \param[in] Address Address to write to, a memory address protected by the CCP mechanism
* \param[in] Value Value to write to the protected location
*/
- static inline void XMEGACLK_CCP_Write(volatile void* Address, const uint8_t Value) ATTR_ALWAYS_INLINE;
+ static inline void XMEGACLK_CCP_Write(volatile void* Address, const uint8_t Value) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline void XMEGACLK_CCP_Write(volatile void* Address, const uint8_t Value)
{
__asm__ __volatile__ (
: /* No output operands */
: /* Input operands: */ "m" (RAMPZ), "e" (Address), "m" (CCP), "r" (CCP_IOREG_gc), "r" (Value)
: /* Clobbered registers: */ "r30", "r31"
- );
+ );
}
/** Starts the external oscillator of the XMEGA microcontroller, with the given options. This routine blocks until
if (SourceFreq > Frequency)
return false;
-
+
if (MulFactor > 31)
return false;
projects / pub / lufa.git / commitdiff