| 3514 |
miho |
1 |
// ====================================================================== |
|
|
2 |
// Common definitions for the USB driver |
|
|
3 |
// |
|
|
4 |
// Copyright (C) 2006 Dick Streefland |
|
|
5 |
// |
|
|
6 |
// This is free software, licensed under the terms of the GNU General |
|
|
7 |
// Public License as published by the Free Software Foundation. |
|
|
8 |
// ====================================================================== |
|
|
9 |
|
|
|
10 |
#ifdef __ASSEMBLER__ |
|
|
11 |
#define __SFR_OFFSET 0 |
|
|
12 |
#endif |
|
|
13 |
#include <avr/io.h> |
|
|
14 |
#include "usbtiny.h" |
|
|
15 |
|
|
|
16 |
// Preprocessor magic |
|
|
17 |
#define CAT2(a,b) CAT2EXP(a, b) |
|
|
18 |
#define CAT2EXP(a,b) a ## b |
|
|
19 |
#define CAT3(a,b,c) CAT3EXP(a, b, c) |
|
|
20 |
#define CAT3EXP(a,b,c) a ## b ## c |
|
|
21 |
|
|
|
22 |
// I/O Ports |
|
|
23 |
#define USB_IN CAT2(PIN, USBTINY_PORT) |
|
|
24 |
#define USB_OUT CAT2(PORT, USBTINY_PORT) |
|
|
25 |
#define USB_DDR CAT2(DDR, USBTINY_PORT) |
|
|
26 |
|
|
|
27 |
// I/O bit masks |
|
|
28 |
#define USB_MASK_DMINUS (1 << (USBTINY_DMINUS)) |
|
|
29 |
#define USB_MASK_DPLUS (1 << (USBTINY_DPLUS)) |
|
|
30 |
#define USB_MASK (USB_MASK_DMINUS | USB_MASK_DPLUS) |
|
|
31 |
|
|
|
32 |
// Interrupt configuration |
|
|
33 |
#if defined EICRA |
|
|
34 |
# define USB_INT_CONFIG EICRA |
|
|
35 |
#else |
|
|
36 |
# define USB_INT_CONFIG MCUCR |
|
|
37 |
#endif |
|
|
38 |
#define USB_INT_CONFIG_SET ((1 << CAT3(ISC,USBTINY_INT,1)) | (1 << CAT3(ISC,USBTINY_INT,0))) |
|
|
39 |
#if defined SIG_INT0 |
|
|
40 |
# define USB_INT_VECTOR CAT2(SIG_INT, USBTINY_INT) |
|
|
41 |
#else |
|
|
42 |
# define USB_INT_VECTOR CAT2(SIG_INTERRUPT, USBTINY_INT) |
|
|
43 |
#endif |
|
|
44 |
|
|
|
45 |
// Interrupt enable |
|
|
46 |
#if defined GIMSK |
|
|
47 |
# define USB_INT_ENABLE GIMSK |
|
|
48 |
#elif defined EIMSK |
|
|
49 |
# define USB_INT_ENABLE EIMSK |
|
|
50 |
#else |
|
|
51 |
# define USB_INT_ENABLE GICR |
|
|
52 |
#endif |
|
|
53 |
#define USB_INT_ENABLE_BIT CAT2(INT,USBTINY_INT) |
|
|
54 |
|
|
|
55 |
// Interrupt pending bit |
|
|
56 |
#if defined EIFR |
|
|
57 |
# define USB_INT_PENDING EIFR |
|
|
58 |
#else |
|
|
59 |
# define USB_INT_PENDING GIFR |
|
|
60 |
#endif |
|
|
61 |
#define USB_INT_PENDING_BIT CAT2(INTF,USBTINY_INT) |
|
|
62 |
|
|
|
63 |
// USB PID values |
|
|
64 |
#define USB_PID_SETUP 0x2d |
|
|
65 |
#define USB_PID_OUT 0xe1 |
|
|
66 |
#define USB_PID_IN 0x69 |
|
|
67 |
#define USB_PID_DATA0 0xc3 |
|
|
68 |
#define USB_PID_DATA1 0x4b |
|
|
69 |
#define USB_PID_ACK 0xd2 |
|
|
70 |
#define USB_PID_NAK 0x5a |
|
|
71 |
#define USB_PID_STALL 0x1e |
|
|
72 |
|
|
|
73 |
// Various constants |
|
|
74 |
#define USB_BUFSIZE 11 // PID + data + CRC |