mirror of
https://github.com/mfulz/qmk_firmware.git
synced 2025-11-04 15:22:41 +01:00
130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2010.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.lufa-lib.org
|
|
*/
|
|
|
|
/*
|
|
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
|
|
*
|
|
* Header file for ISPTarget.c.
|
|
*/
|
|
|
|
#ifndef _ISP_TARGET_
|
|
#define _ISP_TARGET_
|
|
|
|
/* Includes: */
|
|
#include <avr/io.h>
|
|
#include <avr/pgmspace.h>
|
|
#include <util/delay.h>
|
|
|
|
#include <LUFA/Drivers/USB/USB.h>
|
|
#include <LUFA/Drivers/Peripheral/SPI.h>
|
|
|
|
#include "../V2ProtocolParams.h"
|
|
|
|
/* Preprocessor Checks: */
|
|
#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
|
|
#undef ENABLE_ISP_PROTOCOL
|
|
|
|
#if !defined(ENABLE_XPROG_PROTOCOL)
|
|
#define ENABLE_XPROG_PROTOCOL
|
|
#endif
|
|
#endif
|
|
|
|
/* Macros: */
|
|
/** Low level device command to issue an extended FLASH address, for devices with other 128KB of FLASH. */
|
|
#define LOAD_EXTENDED_ADDRESS_CMD 0x4D
|
|
|
|
/** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver. */
|
|
#define TIMER_COMP(freq) (((F_CPU / 8) / 2 / freq) - 1)
|
|
|
|
/** ISP rescue clock speed in Hz, for clocking targets with incorrectly set fuses. */
|
|
#define ISP_RESCUE_CLOCK_SPEED 4000000
|
|
|
|
/* External Variables: */
|
|
extern bool HardwareSPIMode;
|
|
|
|
/* Function Prototypes: */
|
|
void ISPTarget_EnableTargetISP(void);
|
|
void ISPTarget_DisableTargetISP(void);
|
|
void ISPTarget_ConfigureRescueClock(void);
|
|
void ISPTarget_ConfigureSoftwareISP(const uint8_t SCKDuration);
|
|
uint8_t ISPTarget_TransferSoftSPIByte(const uint8_t Byte);
|
|
void ISPTarget_ChangeTargetResetLine(const bool ResetTarget);
|
|
uint8_t ISPTarget_WaitWhileTargetBusy(void);
|
|
void ISPTarget_LoadExtendedAddress(void);
|
|
uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode,
|
|
const uint16_t PollAddress,
|
|
const uint8_t PollValue,
|
|
const uint8_t DelayMS,
|
|
const uint8_t ReadMemCommand);
|
|
|
|
/* Inline Functions: */
|
|
/** Sends a byte of ISP data to the attached target, using the appropriate SPI hardware or
|
|
* software routines depending on the selected ISP speed.
|
|
*
|
|
* \param[in] Byte Byte of data to send to the attached target
|
|
*/
|
|
static inline void ISPTarget_SendByte(const uint8_t Byte)
|
|
{
|
|
if (HardwareSPIMode)
|
|
SPI_SendByte(Byte);
|
|
else
|
|
ISPTarget_TransferSoftSPIByte(Byte);
|
|
}
|
|
|
|
/** Receives a byte of ISP data from the attached target, using the appropriate
|
|
* SPI hardware or software routines depending on the selected ISP speed.
|
|
*
|
|
* \return Received byte of data from the attached target
|
|
*/
|
|
static inline uint8_t ISPTarget_ReceiveByte(void)
|
|
{
|
|
if (HardwareSPIMode)
|
|
return SPI_ReceiveByte();
|
|
else
|
|
return ISPTarget_TransferSoftSPIByte(0x00);
|
|
}
|
|
|
|
/** Sends and receives a byte of ISP data to and from the attached target, using the
|
|
* appropriate SPI hardware or software routines depending on the selected ISP speed.
|
|
*
|
|
* \param[in] Byte Byte of data to send to the attached target
|
|
*
|
|
* \return Received byte of data from the attached target
|
|
*/
|
|
static inline uint8_t ISPTarget_TransferByte(const uint8_t Byte)
|
|
{
|
|
if (HardwareSPIMode)
|
|
return SPI_TransferByte(Byte);
|
|
else
|
|
return ISPTarget_TransferSoftSPIByte(Byte);
|
|
}
|
|
|
|
#endif
|
|
|