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authorDean Camera <dean@fourwalledcubicle.com>2010-05-08 03:12:14 +0000
committerDean Camera <dean@fourwalledcubicle.com>2010-05-08 03:12:14 +0000
commit071e02c6b6b4837fa9cf0b6d4c749994e02638d7 (patch)
tree960446788703b69f0bb285450be80c5b3d8cc22c /Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
parente331b531c6e6d93eb0eee42b9002074e8090ad18 (diff)
downloadlufa-071e02c6b6b4837fa9cf0b6d4c749994e02638d7.tar.gz
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Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style.
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c')
-rw-r--r--Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c476
1 files changed, 238 insertions, 238 deletions
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
index 817f22347..f9815043f 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
@@ -1,238 +1,238 @@
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Target-related functions for the TINY target's NVM module.
- */
-
-#define INCLUDE_FROM_TINYNVM_C
-#include "TINYNVM.h"
-
-#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
-
-/** Sends the given pointer address to the target's TPI pointer register */
-static void TINYNVM_SendPointerAddress(const uint16_t AbsoluteAddress)
-{
- /* Send the given 16-bit address to the target, LSB first */
- XPROGTarget_SendByte(TPI_CMD_SSTPR | 0);
- XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[0]);
- XPROGTarget_SendByte(TPI_CMD_SSTPR | 1);
- XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[1]);
-}
-
-/** Sends a SIN command to the target with the specified I/O address, ready for the data byte to be written.
- *
- * \param[in] Address 6-bit I/O address to write to in the target's I/O memory space
- */
-static void TINYNVM_SendReadNVMRegister(const uint8_t Address)
-{
- /* The TPI command for reading from the I/O space uses strange addressing, where the I/O address's upper
- * two bits of the 6-bit address are shifted left once */
- XPROGTarget_SendByte(TPI_CMD_SIN | ((Address & 0x30) << 1) | (Address & 0x0F));
-}
-
-/** Sends a SOUT command to the target with the specified I/O address, ready for the data byte to be read.
- *
- * \param[in] Address 6-bit I/O address to read from in the target's I/O memory space
- */
-static void TINYNVM_SendWriteNVMRegister(const uint8_t Address)
-{
- /* The TPI command for reading from the I/O space uses strange addressing, where the I/O address's upper
- * two bits of the 6-bit address are shifted left once */
- XPROGTarget_SendByte(TPI_CMD_SOUT | ((Address & 0x30) << 1) | (Address & 0x0F));
-}
-
-/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.
- *
- * \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
- */
-bool TINYNVM_WaitWhileNVMBusBusy(void)
-{
- /* Poll the STATUS register to check to see if NVM access has been enabled */
- while (TimeoutMSRemaining)
- {
- /* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */
- XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
-
- uint8_t StatusRegister = XPROGTarget_ReceiveByte();
-
- /* We might have timed out waiting for the status register read response, check here */
- if (!(TimeoutMSRemaining))
- return false;
-
- /* Check the status register read response to see if the NVM bus is enabled */
- if (StatusRegister & TPI_STATUS_NVM)
- {
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
- return true;
- }
- }
-
- return false;
-}
-
-/** Waits while the target's NVM controller is busy performing an operation, exiting if the
- * timeout period expires.
- *
- * \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
- */
-bool TINYNVM_WaitWhileNVMControllerBusy(void)
-{
- /* Poll the STATUS register to check to see if NVM access has been enabled */
- while (TimeoutMSRemaining)
- {
- /* Send the SIN command to read the TPI STATUS register to see the NVM bus is busy */
- TINYNVM_SendReadNVMRegister(XPROG_Param_NVMCSRRegAddr);
-
- uint8_t StatusRegister = XPROGTarget_ReceiveByte();
-
- /* We might have timed out waiting for the status register read response, check here */
- if (!(TimeoutMSRemaining))
- return false;
-
- /* Check to see if the BUSY flag is still set */
- if (!(StatusRegister & (1 << 7)))
- {
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
- return true;
- }
- }
-
- return false;
-}
-
-/** Reads memory from the target's memory spaces.
- *
- * \param[in] ReadAddress Start address to read from within the target's address space
- * \param[out] ReadBuffer Buffer to store read data into
- * \param[in] ReadSize Length of the data to read from the device
- *
- * \return Boolean true if the command sequence complete successfully
- */
-bool TINYNVM_ReadMemory(const uint16_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize)
-{
- /* Wait until the NVM controller is no longer busy */
- if (!(TINYNVM_WaitWhileNVMControllerBusy()))
- return false;
-
- /* Set the NVM control register to the NO OP command for memory reading */
- TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
- XPROGTarget_SendByte(TINY_NVM_CMD_NOOP);
-
- /* Send the address of the location to read from */
- TINYNVM_SendPointerAddress(ReadAddress);
-
- while (ReadSize-- && TimeoutMSRemaining)
- {
- /* Read the byte of data from the target */
- XPROGTarget_SendByte(TPI_CMD_SLD | TPI_POINTER_INDIRECT_PI);
- *(ReadBuffer++) = XPROGTarget_ReceiveByte();
- }
-
- return (TimeoutMSRemaining != 0);
-}
-
-/** Writes word addressed memory to the target's memory spaces.
- *
- * \param[in] WriteAddress Start address to write to within the target's address space
- * \param[in] WriteBuffer Buffer to source data from
- * \param[in] WriteLength Total number of bytes to write to the device (must be an integer multiple of 2)
- *
- * \return Boolean true if the command sequence complete successfully
- */
-bool TINYNVM_WriteMemory(const uint16_t WriteAddress, uint8_t* WriteBuffer, uint16_t WriteLength)
-{
- /* Wait until the NVM controller is no longer busy */
- if (!(TINYNVM_WaitWhileNVMControllerBusy()))
- return false;
-
- /* Must have an integer number of words to write - if extra byte, word-align via a dummy high byte */
- if (WriteLength & 0x01)
- WriteBuffer[WriteLength++] = 0xFF;
-
- /* Set the NVM control register to the WORD WRITE command for memory reading */
- TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
- XPROGTarget_SendByte(TINY_NVM_CMD_WORDWRITE);
-
- /* Send the address of the location to write to */
- TINYNVM_SendPointerAddress(WriteAddress);
-
- while (WriteLength)
- {
- /* Wait until the NVM controller is no longer busy */
- if (!(TINYNVM_WaitWhileNVMControllerBusy()))
- return false;
-
- /* Write the low byte of data to the target */
- XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);
- XPROGTarget_SendByte(*(WriteBuffer++));
-
- /* Write the high byte of data to the target */
- XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);
- XPROGTarget_SendByte(*(WriteBuffer++));
-
- /* Need to decrement the write length twice, since we read out a whole word */
- WriteLength -= 2;
- }
-
- return true;
-}
-
-/** Erases the target's memory space.
- *
- * \param[in] EraseCommand NVM erase command to send to the device
- * \param[in] Address Address inside the memory space to erase
- *
- * \return Boolean true if the command sequence complete successfully
- */
-bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint16_t Address)
-{
- /* Wait until the NVM controller is no longer busy */
- if (!(TINYNVM_WaitWhileNVMControllerBusy()))
- return false;
-
- /* Set the NVM control register to the target memory erase command */
- TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
- XPROGTarget_SendByte(EraseCommand);
-
- /* Write to a high byte location within the target address space to start the erase process */
- TINYNVM_SendPointerAddress(Address | 0x0001);
- XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT);
- XPROGTarget_SendByte(0x00);
-
- /* Wait until the NVM controller is no longer busy */
- if (!(TINYNVM_WaitWhileNVMControllerBusy()))
- return false;
-
- return true;
-}
-
-#endif
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Target-related functions for the TINY target's NVM module.
+ */
+
+#define INCLUDE_FROM_TINYNVM_C
+#include "TINYNVM.h"
+
+#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
+
+/** Sends the given pointer address to the target's TPI pointer register */
+static void TINYNVM_SendPointerAddress(const uint16_t AbsoluteAddress)
+{
+ /* Send the given 16-bit address to the target, LSB first */
+ XPROGTarget_SendByte(TPI_CMD_SSTPR | 0);
+ XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[0]);
+ XPROGTarget_SendByte(TPI_CMD_SSTPR | 1);
+ XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[1]);
+}
+
+/** Sends a SIN command to the target with the specified I/O address, ready for the data byte to be written.
+ *
+ * \param[in] Address 6-bit I/O address to write to in the target's I/O memory space
+ */
+static void TINYNVM_SendReadNVMRegister(const uint8_t Address)
+{
+ /* The TPI command for reading from the I/O space uses strange addressing, where the I/O address's upper
+ * two bits of the 6-bit address are shifted left once */
+ XPROGTarget_SendByte(TPI_CMD_SIN | ((Address & 0x30) << 1) | (Address & 0x0F));
+}
+
+/** Sends a SOUT command to the target with the specified I/O address, ready for the data byte to be read.
+ *
+ * \param[in] Address 6-bit I/O address to read from in the target's I/O memory space
+ */
+static void TINYNVM_SendWriteNVMRegister(const uint8_t Address)
+{
+ /* The TPI command for reading from the I/O space uses strange addressing, where the I/O address's upper
+ * two bits of the 6-bit address are shifted left once */
+ XPROGTarget_SendByte(TPI_CMD_SOUT | ((Address & 0x30) << 1) | (Address & 0x0F));
+}
+
+/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.
+ *
+ * \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
+ */
+bool TINYNVM_WaitWhileNVMBusBusy(void)
+{
+ /* Poll the STATUS register to check to see if NVM access has been enabled */
+ while (TimeoutMSRemaining)
+ {
+ /* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */
+ XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
+
+ uint8_t StatusRegister = XPROGTarget_ReceiveByte();
+
+ /* We might have timed out waiting for the status register read response, check here */
+ if (!(TimeoutMSRemaining))
+ return false;
+
+ /* Check the status register read response to see if the NVM bus is enabled */
+ if (StatusRegister & TPI_STATUS_NVM)
+ {
+ TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/** Waits while the target's NVM controller is busy performing an operation, exiting if the
+ * timeout period expires.
+ *
+ * \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
+ */
+bool TINYNVM_WaitWhileNVMControllerBusy(void)
+{
+ /* Poll the STATUS register to check to see if NVM access has been enabled */
+ while (TimeoutMSRemaining)
+ {
+ /* Send the SIN command to read the TPI STATUS register to see the NVM bus is busy */
+ TINYNVM_SendReadNVMRegister(XPROG_Param_NVMCSRRegAddr);
+
+ uint8_t StatusRegister = XPROGTarget_ReceiveByte();
+
+ /* We might have timed out waiting for the status register read response, check here */
+ if (!(TimeoutMSRemaining))
+ return false;
+
+ /* Check to see if the BUSY flag is still set */
+ if (!(StatusRegister & (1 << 7)))
+ {
+ TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/** Reads memory from the target's memory spaces.
+ *
+ * \param[in] ReadAddress Start address to read from within the target's address space
+ * \param[out] ReadBuffer Buffer to store read data into
+ * \param[in] ReadSize Length of the data to read from the device
+ *
+ * \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_ReadMemory(const uint16_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize)
+{
+ /* Wait until the NVM controller is no longer busy */
+ if (!(TINYNVM_WaitWhileNVMControllerBusy()))
+ return false;
+
+ /* Set the NVM control register to the NO OP command for memory reading */
+ TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
+ XPROGTarget_SendByte(TINY_NVM_CMD_NOOP);
+
+ /* Send the address of the location to read from */
+ TINYNVM_SendPointerAddress(ReadAddress);
+
+ while (ReadSize-- && TimeoutMSRemaining)
+ {
+ /* Read the byte of data from the target */
+ XPROGTarget_SendByte(TPI_CMD_SLD | TPI_POINTER_INDIRECT_PI);
+ *(ReadBuffer++) = XPROGTarget_ReceiveByte();
+ }
+
+ return (TimeoutMSRemaining != 0);
+}
+
+/** Writes word addressed memory to the target's memory spaces.
+ *
+ * \param[in] WriteAddress Start address to write to within the target's address space
+ * \param[in] WriteBuffer Buffer to source data from
+ * \param[in] WriteLength Total number of bytes to write to the device (must be an integer multiple of 2)
+ *
+ * \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_WriteMemory(const uint16_t WriteAddress, uint8_t* WriteBuffer, uint16_t WriteLength)
+{
+ /* Wait until the NVM controller is no longer busy */
+ if (!(TINYNVM_WaitWhileNVMControllerBusy()))
+ return false;
+
+ /* Must have an integer number of words to write - if extra byte, word-align via a dummy high byte */
+ if (WriteLength & 0x01)
+ WriteBuffer[WriteLength++] = 0xFF;
+
+ /* Set the NVM control register to the WORD WRITE command for memory reading */
+ TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
+ XPROGTarget_SendByte(TINY_NVM_CMD_WORDWRITE);
+
+ /* Send the address of the location to write to */
+ TINYNVM_SendPointerAddress(WriteAddress);
+
+ while (WriteLength)
+ {
+ /* Wait until the NVM controller is no longer busy */
+ if (!(TINYNVM_WaitWhileNVMControllerBusy()))
+ return false;
+
+ /* Write the low byte of data to the target */
+ XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);
+ XPROGTarget_SendByte(*(WriteBuffer++));
+
+ /* Write the high byte of data to the target */
+ XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);
+ XPROGTarget_SendByte(*(WriteBuffer++));
+
+ /* Need to decrement the write length twice, since we read out a whole word */
+ WriteLength -= 2;
+ }
+
+ return true;
+}
+
+/** Erases the target's memory space.
+ *
+ * \param[in] EraseCommand NVM erase command to send to the device
+ * \param[in] Address Address inside the memory space to erase
+ *
+ * \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint16_t Address)
+{
+ /* Wait until the NVM controller is no longer busy */
+ if (!(TINYNVM_WaitWhileNVMControllerBusy()))
+ return false;
+
+ /* Set the NVM control register to the target memory erase command */
+ TINYNVM_SendWriteNVMRegister(XPROG_Param_NVMCMDRegAddr);
+ XPROGTarget_SendByte(EraseCommand);
+
+ /* Write to a high byte location within the target address space to start the erase process */
+ TINYNVM_SendPointerAddress(Address | 0x0001);
+ XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT);
+ XPROGTarget_SendByte(0x00);
+
+ /* Wait until the NVM controller is no longer busy */
+ if (!(TINYNVM_WaitWhileNVMControllerBusy()))
+ return false;
+
+ return true;
+}
+
+#endif