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-rw-r--r--LUFA/Drivers/Board/Dataflash.h4
-rw-r--r--LUFA/Drivers/Board/Temperature.h2
-rw-r--r--LUFA/Drivers/Misc/RingBuffer.h8
-rw-r--r--LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h115
-rw-r--r--LUFA/Drivers/Peripheral/TWI.c84
-rw-r--r--LUFA/Drivers/USB/Class/Common/CDC.h6
-rw-r--r--LUFA/Drivers/USB/LowLevel/Host.h4
-rw-r--r--LUFA/Drivers/USB/LowLevel/USBController.h2
8 files changed, 187 insertions, 38 deletions
diff --git a/LUFA/Drivers/Board/Dataflash.h b/LUFA/Drivers/Board/Dataflash.h
index 69ffdcb82..852d81977 100644
--- a/LUFA/Drivers/Board/Dataflash.h
+++ b/LUFA/Drivers/Board/Dataflash.h
@@ -87,13 +87,13 @@
* for (uint16_t i = 0; i < DATAFLASH_PAGE_SIZE; i++)
* Dataflash_SendByte(WriteBuffer[i]);
*
- * // Commit the Dataflash's first memory buffer to the non-voltatile FLASH memory
+ * // Commit the Dataflash's first memory buffer to the non-volatile FLASH memory
* printf("Committing page to non-volatile memory page index 5:\r\n");
* Dataflash_SendByte(DF_CMD_BUFF1TOMAINMEMWITHERASE);
* Dataflash_SendAddressBytes(5, 0);
* Dataflash_WaitWhileBusy();
*
- * // Read the page from non-voltatile FLASH memory into the Dataflash's second memory buffer
+ * // Read the page from non-volatile FLASH memory into the Dataflash's second memory buffer
* printf("Reading data into second dataflash buffer:\r\n");
* Dataflash_SendByte(DF_CMD_MAINMEMTOBUFF2);
* Dataflash_SendAddressBytes(5, 0);
diff --git a/LUFA/Drivers/Board/Temperature.h b/LUFA/Drivers/Board/Temperature.h
index 29775b4af..a87327571 100644
--- a/LUFA/Drivers/Board/Temperature.h
+++ b/LUFA/Drivers/Board/Temperature.h
@@ -56,7 +56,7 @@
* ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
* Temperature_Init();
*
- * // Display converted temperature in degrees Celcius
+ * // Display converted temperature in degrees Celsius
* printf("Current Temperature: %d Degrees\r\n", Temperature_GetTemperature());
* \endcode
*
diff --git a/LUFA/Drivers/Misc/RingBuffer.h b/LUFA/Drivers/Misc/RingBuffer.h
index 4b2b9b22c..37e8a1ba5 100644
--- a/LUFA/Drivers/Misc/RingBuffer.h
+++ b/LUFA/Drivers/Misc/RingBuffer.h
@@ -35,9 +35,9 @@
* different sizes to suit different needs.
*
* Note that for each buffer, insertion and removal operations may occur at the same time (via
- * a multithreaded ISR based system) however the same kind of operation (two or more insertions
+ * a multi-threaded ISR based system) however the same kind of operation (two or more insertions
* or deletions) must not overlap. If there is possibility of two or more of the same kind of
- * operating occuring at the same point in time, atomic (mutex) locking should be used.
+ * operating occurring at the same point in time, atomic (mutex) locking should be used.
*/
/** \ingroup Group_MiscDrivers
@@ -52,9 +52,9 @@
* different sizes to suit different needs.
*
* Note that for each buffer, insertion and removal operations may occur at the same time (via
- * a multithreaded ISR based system) however the same kind of operation (two or more insertions
+ * a multi-threaded ISR based system) however the same kind of operation (two or more insertions
* or deletions) must not overlap. If there is possibility of two or more of the same kind of
- * operating occuring at the same point in time, atomic (mutex) locking should be used.
+ * operating occurring at the same point in time, atomic (mutex) locking should be used.
*
* \section Sec_ExampleUsage Example Usage
* The following snippet is an example of how this module may be used within a typical
diff --git a/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h b/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
index 2408ad15f..499fc4d99 100644
--- a/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
+++ b/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
@@ -49,13 +49,16 @@
* The following snippet is an example of how this module may be used within a typical
* application.
*
+ * <b>Low Level API Example:</b>
* \code
* // Initialise the TWI driver before first use
* TWI_Init();
*
- * // Start a write session to device at address 0xA0 with a 10ms timeout
+ * // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
* if (TWI_StartTransmission(0xA0 | TWI_ADDRESS_WRITE, 10))
* {
+ * TWI_SendByte(0xDC);
+ *
* TWI_SendByte(0x01);
* TWI_SendByte(0x02);
* TWI_SendByte(0x03);
@@ -64,21 +67,47 @@
* TWI_StopTransmission();
* }
*
- * // Start a read session to device at address 0xA0 with a 10ms timeout
- * if (TWI_StartTransmission(0xA0 | TWI_ADDRESS_READ, 10))
+ * // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout
+ * if (TWI_StartTransmission(0xA0 | TWI_ADDRESS_WRITE, 10))
* {
- * uint8_t Byte1, Byte2, Byte3;
+ * TWI_SendByte(0xDC);
+ * TWI_StopTransmission();
*
- * // Read three bytes, acknowledge after the third byte is received
- * TWI_ReceiveByte(&Byte1, false);
- * TWI_ReceiveByte(&Byte2, false);
- * TWI_ReceiveByte(&Byte3, true);
+ * if (TWI_StartTransmission(0xA0 | TWI_ADDRESS_READ, 10))
+ * {
+ * uint8_t Byte1, Byte2, Byte3;
*
- * // Must stop transmission afterwards to release the bus
- * TWI_StopTransmission();
+ * // Read three bytes, acknowledge after the third byte is received
+ * TWI_ReceiveByte(&Byte1, false);
+ * TWI_ReceiveByte(&Byte2, false);
+ * TWI_ReceiveByte(&Byte3, true);
+ *
+ * // Must stop transmission afterwards to release the bus
+ * TWI_StopTransmission();
+ * }
* }
* \endcode
*
+ * <b>High Level API Example:</b>
+ * \code
+ * // Initialise the TWI driver before first use
+ * TWI_Init();
+ *
+ * // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
+ * uint8_t InternalWriteAddress = 0xDC;
+ * uint8_t WritePacket[3] = {0x01, 0x02, 0x03};
+ *
+ * TWI_WritePacket(0xA0, 10, &InternalWriteAddress, sizeof(InternalWriteAddress),
+ * &WritePacket, sizeof(WritePacket);
+ *
+ * // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout
+ * uint8_t InternalReadAddress = 0xDC;
+ * uint8_t ReadPacket[3];
+ *
+ * TWI_ReadPacket(0xA0, 10, &InternalReadAddress, sizeof(InternalReadAddress),
+ * &ReadPacket, sizeof(ReadPacket);
+ * \endcode
+ *
* @{
*/
@@ -90,6 +119,7 @@
#include <avr/io.h>
#include <stdbool.h>
+ #include <stdio.h>
#include <util/twi.h>
#include <util/delay.h>
@@ -108,12 +138,29 @@
/** TWI slave device address mask for a read session. Mask with a slave device base address to obtain
* the correct TWI bus address for the slave device when reading data from it.
*/
- #define TWI_ADDRESS_READ 0x00
+ #define TWI_ADDRESS_READ 0x00
/** TWI slave device address mask for a write session. Mask with a slave device base address to obtain
* the correct TWI bus address for the slave device when writing data to it.
*/
- #define TWI_ADDRESS_WRITE 0x01
+ #define TWI_ADDRESS_WRITE 0x01
+
+ /** Mask to retrieve the base address for a TWI device, which can then be ORed with \ref TWI_ADDRESS_READ
+ * or \ref TWI_ADDRESS_WRITE to obtain the device's read and write address respectively.
+ */
+ #define TWI_DEVICE_ADDRESS_MASK 0xFE
+
+ /* Enums: */
+ /** Enum for the possible return codes of the TWI transfer start routine and other dependant TWI functions. */
+ enum TWI_ErrorCodes_t
+ {
+ TWI_ERROR_NoError = 0, /**< Indicates that the command completed sucessfully. */
+ TWI_ERROR_BusFault = 1, /**< A TWI bus fault occurred while attempting to capture the bus. */
+ TWI_ERROR_BusCaptureTimeout = 2, /**< A timeout occurred whilst waiting for the bus to be ready. */
+ TWI_ERROR_SlaveResponseTimeout = 3, /**< No ACK received at the nominated slave address within the timeout period. */
+ TWI_ERROR_SlaveNotReady = 4, /**< Slave NAKed the TWI bus START condition. */
+ TWI_ERROR_SlaveNAK = 5, /**< Slave NAKed whilst attempting to send data to the device. */
+ };
/* Inline Functions: */
/** Initialises the TWI hardware into master mode, ready for data transmission and reception. This must be
@@ -163,8 +210,8 @@
*
* \return Boolean \c true if the byte reception successfully completed, \c false otherwise
*/
- static inline bool TWI_ReceiveByte(uint8_t* const Byte,
- const bool LastByte)
+ static inline uint8_t TWI_ReceiveByte(uint8_t* const Byte,
+ const bool LastByte)
{
uint8_t TWCRMask = ((1 << TWINT) | (1 << TWEN));
@@ -184,10 +231,44 @@
* \param[in] SlaveAddress Address of the slave TWI device to communicate with
* \param[in] TimeoutMS Timeout period within which the slave must respond, in milliseconds
*
- * \return Boolean \c true if the device is ready for data, \c false otherwise
+ * \return A value from the \ref TWI_ErrorCodes_t enum
+ */
+ uint8_t TWI_StartTransmission(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS);
+
+ /** High level function to perform a complete packet transfer over the TWI bus to the specified
+ * device.
+ *
+ * \param[in] SlaveAddress Base address of the TWI slave device to communicate with
+ * \param[in] TimeoutMS Timeout for bus capture and slave START ACK, in milliseconds
+ * \param[in] InternalAddress Pointer to a location where the internal slave read start address is stored
+ * \param[in] InternalAddressLen Size of the internal device address, in bytes
+ * \param[in] Buffer Pointer to a buffer where the read packet data is to be stored
+ * \param[in] Length Size of the packet to read, in bytes
+ */
+ uint8_t TWI_ReadPacket(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS,
+ const uint8_t* InternalAddress,
+ uint8_t InternalAddressLen,
+ uint8_t* Buffer,
+ uint8_t Length);
+
+ /** High level function to perform a complete packet transfer over the TWI bus from the specified
+ * device.
+ *
+ * \param[in] SlaveAddress Base address of the TWI slave device to communicate with
+ * \param[in] TimeoutMS Timeout for bus capture and slave START ACK, in milliseconds
+ * \param[in] InternalAddress Pointer to a location where the internal slave write start address is stored
+ * \param[in] InternalAddressLen Size of the internal device address, in bytes
+ * \param[in] Buffer Pointer to a buffer where the packet data to send is stored
+ * \param[in] Length Size of the packet to send, in bytes
*/
- bool TWI_StartTransmission(const uint8_t SlaveAddress,
- const uint8_t TimeoutMS);
+ uint8_t TWI_WritePacket(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS,
+ const uint8_t* InternalAddress,
+ uint8_t InternalAddressLen,
+ const uint8_t* Buffer,
+ uint8_t Length);
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)
diff --git a/LUFA/Drivers/Peripheral/TWI.c b/LUFA/Drivers/Peripheral/TWI.c
index 6aaf19219..2f4e4ed42 100644
--- a/LUFA/Drivers/Peripheral/TWI.c
+++ b/LUFA/Drivers/Peripheral/TWI.c
@@ -7,8 +7,8 @@
#include "TWI.h"
-bool TWI_StartTransmission(const uint8_t SlaveAddress,
- const uint8_t TimeoutMS)
+uint8_t TWI_StartTransmission(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS)
{
for (;;)
{
@@ -33,17 +33,17 @@ bool TWI_StartTransmission(const uint8_t SlaveAddress,
continue;
default:
TWCR = (1 << TWEN);
- return false;
+ return TWI_ERROR_BusFault;
}
}
_delay_us(10);
}
- if (!(BusCaptured))
+ if (!(TimeoutRemaining))
{
TWCR = (1 << TWEN);
- return false;
+ return TWI_ERROR_BusCaptureTimeout;
}
TWDR = SlaveAddress;
@@ -59,17 +59,85 @@ bool TWI_StartTransmission(const uint8_t SlaveAddress,
}
if (!(TimeoutRemaining))
- return false;
+ return TWI_ERROR_SlaveResponseTimeout;
switch (TWSR & TW_STATUS_MASK)
{
case TW_MT_SLA_ACK:
case TW_MR_SLA_ACK:
- return true;
+ return TWI_ERROR_NoError;
default:
TWCR = ((1 << TWINT) | (1 << TWSTO) | (1 << TWEN));
- return false;
+ return TWI_ERROR_SlaveNotReady;
+ }
+ }
+}
+
+uint8_t TWI_ReadPacket(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS,
+ const uint8_t* InternalAddress,
+ uint8_t InternalAddressLen,
+ uint8_t* Buffer,
+ uint8_t Length)
+{
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = TWI_WritePacket(SlaveAddress, TimeoutMS, InternalAddress, InternalAddressLen,
+ NULL, 0)) != TWI_ERROR_NoError)
+ {
+ return ErrorCode;
+ }
+
+ if ((ErrorCode = TWI_StartTransmission((SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_READ,
+ TimeoutMS)) == TWI_ERROR_NoError)
+ {
+ while (Length--)
+ {
+ if (!(TWI_ReceiveByte(Buffer++, (Length == 0))))
+ {
+ ErrorCode = TWI_ERROR_SlaveNAK;
+ break;
+ }
}
+
+ TWI_StopTransmission();
}
+
+ return ErrorCode;
}
+uint8_t TWI_WritePacket(const uint8_t SlaveAddress,
+ const uint8_t TimeoutMS,
+ const uint8_t* InternalAddress,
+ uint8_t InternalAddressLen,
+ const uint8_t* Buffer,
+ uint8_t Length)
+{
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = TWI_StartTransmission((SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE,
+ TimeoutMS)) == TWI_ERROR_NoError)
+ {
+ while (InternalAddressLen--)
+ {
+ if (!(TWI_SendByte(*(InternalAddress++))))
+ {
+ ErrorCode = TWI_ERROR_SlaveNAK;
+ break;
+ }
+ }
+
+ while (Length--)
+ {
+ if (!(TWI_SendByte(*(Buffer++))))
+ {
+ ErrorCode = TWI_ERROR_SlaveNAK;
+ break;
+ }
+ }
+
+ TWI_StopTransmission();
+ }
+
+ return ErrorCode;
+}
diff --git a/LUFA/Drivers/USB/Class/Common/CDC.h b/LUFA/Drivers/USB/Class/Common/CDC.h
index 06efb51d4..52107d6a8 100644
--- a/LUFA/Drivers/USB/Class/Common/CDC.h
+++ b/LUFA/Drivers/USB/Class/Common/CDC.h
@@ -189,7 +189,7 @@
enum CDC_DescriptorSubtypes_t
{
CDC_DSUBTYPE_CSInterface_Header = 0x00, /**< CDC class-specific Header functional descriptor. */
- CDC_DSUBTYPE_CSInterface_CallManagement = 0x01, /**< CDC class-specific Call Managment functional descriptor. */
+ CDC_DSUBTYPE_CSInterface_CallManagement = 0x01, /**< CDC class-specific Call Management functional descriptor. */
CDC_DSUBTYPE_CSInterface_ACM = 0x02, /**< CDC class-specific Abstract Control Model functional descriptor. */
CDC_DSUBTYPE_CSInterface_DirectLine = 0x03, /**< CDC class-specific Direct Line functional descriptor. */
CDC_DSUBTYPE_CSInterface_TelephoneRinger = 0x04, /**< CDC class-specific Telephone Ringer functional descriptor. */
@@ -280,7 +280,7 @@
* must be \ref CDC_DSUBTYPE_CSInterface_ACM.
*/
uint8_t Capabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
- * this should be set to a fixed value of 0x06 - for other capabiltiies, refer
+ * this should be set to a fixed value of 0x06 - for other capabilities, refer
* to the CDC ACM specification.
*/
} USB_CDC_Descriptor_FunctionalACM_t;
@@ -303,7 +303,7 @@
* must be \ref CDC_DSUBTYPE_CSInterface_ACM.
*/
uint8_t bmCapabilities; /**< Capabilities of the ACM interface, given as a bit mask. For most devices,
- * this should be set to a fixed value of 0x06 - for other capabiltiies, refer
+ * this should be set to a fixed value of 0x06 - for other capabilities, refer
* to the CDC ACM specification.
*/
} USB_CDC_StdDescriptor_FunctionalACM_t;
diff --git a/LUFA/Drivers/USB/LowLevel/Host.h b/LUFA/Drivers/USB/LowLevel/Host.h
index 48d7926f3..92a4cb9c5 100644
--- a/LUFA/Drivers/USB/LowLevel/Host.h
+++ b/LUFA/Drivers/USB/LowLevel/Host.h
@@ -95,8 +95,8 @@
* after connection before the enumeration process can start or incorrect operation will
* occur.
*
- * The default delay value may be overridden in the user project makefile by definining the
- * \c HOST_DEVICE_SETTLE_DELAY_MS token to tbe required delay in milliseconds, and passed to the
+ * The default delay value may be overridden in the user project makefile by defining the
+ * \c HOST_DEVICE_SETTLE_DELAY_MS token to the required delay in milliseconds, and passed to the
* compiler using the -D switch.
*/
#define HOST_DEVICE_SETTLE_DELAY_MS 1000
diff --git a/LUFA/Drivers/USB/LowLevel/USBController.h b/LUFA/Drivers/USB/LowLevel/USBController.h
index ea3d8fa99..5511fa573 100644
--- a/LUFA/Drivers/USB/LowLevel/USBController.h
+++ b/LUFA/Drivers/USB/LowLevel/USBController.h
@@ -308,7 +308,7 @@
* changed in value.
* \n\n
*
- * \note When the controller is initialized into UID autodetection mode, this variable will hold the
+ * \note When the controller is initialized into UID auto-detection mode, this variable will hold the
* currently selected USB mode (i.e. \ref USB_MODE_Device or \ref USB_MODE_Host). If the controller
* is fixed into a specific mode (either through the \c USB_DEVICE_ONLY or \c USB_HOST_ONLY compile time
* options, or a limitation of the USB controller in the chosen device model) this will evaluate to
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 12:47:40 +0000