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