Reduce bootloader magic key to 16 bits to save FLASH space.
[pub/USBasp.git] / Bootloaders / CDC / BootloaderCDC.h
1 /*
2 LUFA Library
3 Copyright (C) Dean Camera, 2012.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.lufa-lib.org
7 */
8
9 /*
10 Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
11
12 Permission to use, copy, modify, distribute, and sell this
13 software and its documentation for any purpose is hereby granted
14 without fee, provided that the above copyright notice appear in
15 all copies and that both that the copyright notice and this
16 permission notice and warranty disclaimer appear in supporting
17 documentation, and that the name of the author not be used in
18 advertising or publicity pertaining to distribution of the
19 software without specific, written prior permission.
20
21 The author disclaim all warranties with regard to this
22 software, including all implied warranties of merchantability
23 and fitness. In no event shall the author be liable for any
24 special, indirect or consequential damages or any damages
25 whatsoever resulting from loss of use, data or profits, whether
26 in an action of contract, negligence or other tortious action,
27 arising out of or in connection with the use or performance of
28 this software.
29 */
30
31 /** \file
32 *
33 * Header file for BootloaderCDC.c.
34 */
35
36 #ifndef _CDC_H_
37 #define _CDC_H_
38
39 /* Includes: */
40 #include <avr/io.h>
41 #include <avr/wdt.h>
42 #include <avr/boot.h>
43 #include <avr/eeprom.h>
44 #include <avr/power.h>
45 #include <avr/interrupt.h>
46 #include <stdbool.h>
47
48 #include "Descriptors.h"
49 #include "BootloaderAPI.h"
50 #include "Config/AppConfig.h"
51
52 #include <LUFA/Drivers/USB/USB.h>
53 #include <LUFA/Drivers/Board/LEDs.h>
54
55 /* Macros: */
56 /** Version major of the CDC bootloader. */
57 #define BOOTLOADER_VERSION_MAJOR 0x01
58
59 /** Version minor of the CDC bootloader. */
60 #define BOOTLOADER_VERSION_MINOR 0x00
61
62 /** Hardware version major of the CDC bootloader. */
63 #define BOOTLOADER_HWVERSION_MAJOR 0x01
64
65 /** Hardware version minor of the CDC bootloader. */
66 #define BOOTLOADER_HWVERSION_MINOR 0x00
67
68 /** Eight character bootloader firmware identifier reported to the host when requested */
69 #define SOFTWARE_IDENTIFIER "LUFACDC"
70
71 /** Magic bootloader key to unlock forced application start mode. */
72 #define MAGIC_BOOT_KEY 0xDC42
73
74 /* Type Defines: */
75 /** Type define for a non-returning pointer to the start of the loaded application in flash memory. */
76 typedef void (*AppPtr_t)(void) ATTR_NO_RETURN;
77
78 /* Function Prototypes: */
79 static void CDC_Task(void);
80 static void SetupHardware(void);
81
82 void Application_Jump_Check(void) ATTR_INIT_SECTION(3);
83
84 void EVENT_USB_Device_ConfigurationChanged(void);
85
86 #if defined(INCLUDE_FROM_BOOTLOADERCDC_C) || defined(__DOXYGEN__)
87 #if !defined(NO_BLOCK_SUPPORT)
88 static void ReadWriteMemoryBlock(const uint8_t Command);
89 #endif
90 static uint8_t FetchNextCommandByte(void);
91 static void WriteNextResponseByte(const uint8_t Response);
92 #endif
93
94 #endif
95