sanguino/firmwares/arduino-usbdfu/Arduino-usbdfu.h

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1 /*
2 LUFA Library
3 Copyright (C) Dean Camera, 2010.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.fourwalledcubicle.com
7 */
8
9 /*
10 Copyright 2010 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 Arduino-usbdfu.c.
34 */
35
36 #ifndef _ARDUINO_USB_DFU_BOOTLOADER_H_
37 #define _ARDUINO_USB_DFU_BOOTLOADER_H_
38
39 /* Includes: */
40 #include <avr/io.h>
41 #include <avr/wdt.h>
42 #include <avr/boot.h>
43 #include <avr/pgmspace.h>
44 #include <avr/eeprom.h>
45 #include <avr/power.h>
46 #include <avr/interrupt.h>
47 #include <stdbool.h>
48
49 #include "Descriptors.h"
50
51 #include <LUFA/Drivers/Board/LEDs.h>
52 #include <LUFA/Drivers/USB/USB.h>
53
54 /* Macros: */
55 /** LED mask for the library LED driver, to indicate TX activity. */
56 #define LEDMASK_TX LEDS_LED1
57
58 /** LED mask for the library LED driver, to indicate RX activity. */
59 #define LEDMASK_RX LEDS_LED2
60
61 /** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
62 #define LEDMASK_ERROR (LEDS_LED1 | LEDS_LED2)
63
64 /** LED mask for the library LED driver, to indicate that the USB interface is busy. */
65 #define LEDMASK_BUSY (LEDS_LED1 | LEDS_LED2)
66
67 /** Configuration define. Define this token to true to case the bootloader to reject all memory commands
68 * until a memory erase has been performed. When used in conjunction with the lockbits of the AVR, this
69 * can protect the AVR's firmware from being dumped from a secured AVR. When false, memory operations are
70 * allowed at any time.
71 */
72 // #define SECURE_MODE false
73
74 /** Major bootloader version number. */
75 #define BOOTLOADER_VERSION_MINOR 2
76
77 /** Minor bootloader version number. */
78 #define BOOTLOADER_VERSION_REV 0
79
80 /** Complete bootloader version number expressed as a packed byte, constructed from the
81 * two individual bootloader version macros.
82 */
83 #define BOOTLOADER_VERSION ((BOOTLOADER_VERSION_MINOR << 4) | BOOTLOADER_VERSION_REV)
84
85 /** First byte of the bootloader identification bytes, used to identify a device's bootloader. */
86 #define BOOTLOADER_ID_BYTE1 0xDC
87
88 /** Second byte of the bootloader identification bytes, used to identify a device's bootloader. */
89 #define BOOTLOADER_ID_BYTE2 0xFB
90
91 /** Convenience macro, used to determine if the issued command is the given one-byte long command.
92 *
93 * \param[in] dataarr Command byte array to check against
94 * \param[in] cb1 First command byte to check
95 */
96 #define IS_ONEBYTE_COMMAND(dataarr, cb1) (dataarr[0] == (cb1))
97
98 /** Convenience macro, used to determine if the issued command is the given two-byte long command.
99 *
100 * \param[in] dataarr Command byte array to check against
101 * \param[in] cb1 First command byte to check
102 * \param[in] cb2 Second command byte to check
103 */
104 #define IS_TWOBYTE_COMMAND(dataarr, cb1, cb2) ((dataarr[0] == (cb1)) && (dataarr[1] == (cb2)))
105
106 /** Length of the DFU file suffix block, appended to the end of each complete memory write command.
107 * The DFU file suffix is currently unused (but is designed to give extra file information, such as
108 * a CRC of the complete firmware for error checking) and so is discarded.
109 */
110 #define DFU_FILE_SUFFIX_SIZE 16
111
112 /** Length of the DFU file filler block, appended to the start of each complete memory write command.
113 * Filler bytes are added to the start of each complete memory write command, and must be discarded.
114 */
115 #define DFU_FILLER_BYTES_SIZE 26
116
117 /** DFU class command request to detach from the host. */
118 #define DFU_DETATCH 0x00
119
120 /** DFU class command request to send data from the host to the bootloader. */
121 #define DFU_DNLOAD 0x01
122
123 /** DFU class command request to send data from the bootloader to the host. */
124 #define DFU_UPLOAD 0x02
125
126 /** DFU class command request to get the current DFU status and state from the bootloader. */
127 #define DFU_GETSTATUS 0x03
128
129 /** DFU class command request to reset the current DFU status and state variables to their defaults. */
130 #define DFU_CLRSTATUS 0x04
131
132 /** DFU class command request to get the current DFU state of the bootloader. */
133 #define DFU_GETSTATE 0x05
134
135 /** DFU class command request to abort the current multi-request transfer and return to the dfuIDLE state. */
136 #define DFU_ABORT 0x06
137
138 /** DFU command to begin programming the device's memory. */
139 #define COMMAND_PROG_START 0x01
140
141 /** DFU command to begin reading the device's memory. */
142 #define COMMAND_DISP_DATA 0x03
143
144 /** DFU command to issue a write command. */
145 #define COMMAND_WRITE 0x04
146
147 /** DFU command to issue a read command. */
148 #define COMMAND_READ 0x05
149
150 /** DFU command to issue a memory base address change command, to set the current 64KB flash page
151 * that subsequent flash operations should use. */
152 #define COMMAND_CHANGE_BASE_ADDR 0x06
153
154 /* Type Defines: */
155 /** Type define for a non-returning function pointer to the loaded application. */
156 typedef void (*AppPtr_t)(void) ATTR_NO_RETURN;
157
158 /** Type define for a structure containing a complete DFU command issued by the host. */
159 typedef struct
160 {
161 uint8_t Command; /**< Single byte command to perform, one of the COMMAND_* macro values */
162 uint8_t Data[5]; /**< Command parameters */
163 uint16_t DataSize; /**< Size of the command parameters */
164 } DFU_Command_t;
165
166 /* Enums: */
167 /** DFU bootloader states. Refer to the DFU class specification for information on each state. */
168 enum DFU_State_t
169 {
170 appIDLE = 0,
171 appDETACH = 1,
172 dfuIDLE = 2,
173 dfuDNLOAD_SYNC = 3,
174 dfuDNBUSY = 4,
175 dfuDNLOAD_IDLE = 5,
176 dfuMANIFEST_SYNC = 6,
177 dfuMANIFEST = 7,
178 dfuMANIFEST_WAIT_RESET = 8,
179 dfuUPLOAD_IDLE = 9,
180 dfuERROR = 10
181 };
182
183 /** DFU command status error codes. Refer to the DFU class specification for information on each error code. */
184 enum DFU_Status_t
185 {
186 OK = 0,
187 errTARGET = 1,
188 errFILE = 2,
189 errWRITE = 3,
190 errERASE = 4,
191 errCHECK_ERASED = 5,
192 errPROG = 6,
193 errVERIFY = 7,
194 errADDRESS = 8,
195 errNOTDONE = 9,
196 errFIRMWARE = 10,
197 errVENDOR = 11,
198 errUSBR = 12,
199 errPOR = 13,
200 errUNKNOWN = 14,
201 errSTALLEDPKT = 15
202 };
203
204 /* Function Prototypes: */
205 void SetupHardware(void);
206 void ResetHardware(void);
207
208 void EVENT_USB_Device_UnhandledControlRequest(void);
209
210 #if defined(INCLUDE_FROM_BOOTLOADER_C)
211 static void DiscardFillerBytes(uint8_t NumberOfBytes);
212 static void ProcessBootloaderCommand(void);
213 static void LoadStartEndAddresses(void);
214 static void ProcessMemProgCommand(void);
215 static void ProcessMemReadCommand(void);
216 static void ProcessWriteCommand(void);
217 static void ProcessReadCommand(void);
218 #endif
219
220 #endif /* _ARDUINO_USB_DFU_BOOTLOADER_H_ */

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