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Forgot usb support files
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William Toohey
parent
9880107af5
commit
9425b66779
145
Firmware/Keyboard/asciihid.h
Normal file
145
Firmware/Keyboard/asciihid.h
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// https://github.com/SFE-Chris/UNO-HIDKeyboard-Library/blob/master/HIDKeyboard.h
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#include <avr/pgmspace.h>
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// HID Values of Function Keys
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#define F1 0x3a
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#define F2 0x3b
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#define F3 0x3c
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#define F4 0x3d
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#define F5 0x3e
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#define F6 0x3f
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#define F7 0x40
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#define F8 0x41
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#define F9 0x42
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#define F10 0x43
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#define F11 0x44
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#define F12 0x45
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// HID Values of Special Keys
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#define ENTER 0x28
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#define ESCAPE 0x29
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#define BACKSPACE 0x2a
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#define TAB 0x2b
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#define SPACEBAR 0x2c
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#define CAPSLOCK 0x39
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#define PRINTSCREEN 0x46
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#define SCROLLLOCK 0x47
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#define PAUSE 0x48
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#define INSERT 0x49
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#define HOME 0x4a
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#define PAGEUP 0x4b
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#define DELETE 0x4c
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#define END 0x4d
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#define PAGEDOWN 0x4e
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#define RIGHTARROW 0x4f
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#define LEFTARROW 0x50
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#define DOWNARROW 0x51
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#define UPARROW 0x52
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// HID Values of Keypad Keys
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#define NUMLOCK 0x53
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#define KEYPADSLASH 0x54
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#define KEYPADSTAR 0x55
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#define KEYPADMINUS 0x56
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#define KEYPADPLUS 0x57
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#define KEYPADENTER 0x58
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#define KEYPAD1 0x59
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#define KEYPAD2 0x5a
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#define KEYPAD3 0x5b
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#define KEYPAD4 0x5c
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#define KEYPAD5 0x5d
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#define KEYPAD6 0x5e
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#define KEYPAD7 0x5f
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#define KEYPAD8 0x60
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#define KEYPAD9 0x61
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#define KEYPAD0 0x62
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#define KEYPADPERIOD 0x63
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// HID Values of System Keys
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#define KEYBOARDAPPLICATION 0x65
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#define KEYBOARDPOWER 0x66
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#define VOLUMEMUTE 0x7f
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#define VOLUMEUP 0x80
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#define VOLUMEDOWN 0x81
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// Common-use modifiers
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#define CTRL 0x01
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#define SHIFT 0x02
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#define ALT 0x04
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#define GUI 0x08
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/****************************************************************************
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*
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* ASCII->HID LOOKUP TABLE
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*
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* Taken from the HID Table definition at
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* http://www.usb.org/developers/devclass_docs/Hut1_11.pdf
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*
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* This array maps the ASCII value of a type-able character to its
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* corresponding HID value.
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*
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* Example:
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* 'a' = ASCII value 97 = HID value 0x04
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* HIDTable['a'] = HIDTable[97] = 0x04
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*
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* NOTE:
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* "Shift Modified" HID values are the same as the non Shift-Modified values
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* for any given character, e.g. the HID value for '2' is equal to the
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* HID value for '@'. The Shift-Modified value is sent by setting the
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* modifier value (buf[0]) to the corresponding modifier value in the
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* modifier table.
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*
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****************************************************************************/
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PROGMEM uint8_t HIDTable[] = {
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0x00, // 0
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2A, 0x00, 0x28, // 10
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0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 20
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, // 30
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0x00, 0x2c, 0x1e, 0x34, 0x20, 0x21, 0x22, 0x24, 0x34, 0x26, // 40
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0x27, 0x25, 0x2e, 0x36, 0x2d, 0x37, 0x38, 0x27, 0x1e, 0x1f, // 50
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x33, 0x33, 0x36, // 60
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0x2e, 0x37, 0x38, 0x1f, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, // 70
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0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, // 80
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0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, // 90
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0x2f, 0x31, 0x30, 0x23, 0x2d, 0x35, 0x04, 0x05, 0x06, 0x07, // 100
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, // 110
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0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, // 120
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0x1c, 0x1d, 0x2f, 0x31, 0x30, 0x35, 127 // 127
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};
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/****************************************************************************
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*
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* ASCII->MODIFIER LOOKUP TABLE
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*
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* Looks up whether or not the HID report should use the SHIFT modifier.
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*
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* Example:
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* The character '2' and the character '@' have different ASCII values but
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* the same HID value. This table uses the ASCII value to determine if
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* we should hold shift while sending the key. e.g.:
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*
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* HIDTable['2'] = 0x1f and modifierTable['2'] = 0
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* HIDTable['@'] = 0x1f and modifierTable['@'] = SHIFT
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*
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* There's probaly a better way to do this, but it's functional.
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*
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****************************************************************************/
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PROGMEM uint8_t modifierTable[] = {
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0x00, // 0
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 10
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 20
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 30
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0x00, 0x00, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, // 40
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SHIFT, 0x00, SHIFT, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 50
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, SHIFT, 0x00, SHIFT, // 60
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0x00, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, // 70
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SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, // 80
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SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, SHIFT, // 90
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0x00, 0x00, 0x00, SHIFT, SHIFT, 0x00, 0x00, 0x00, 0x00, 0x00, // 100
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 110
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 120
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0x00, 0x00, SHIFT, SHIFT, SHIFT, SHIFT, 0x00 // 127
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};
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119
Firmware/Keyboard/usbio.c
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119
Firmware/Keyboard/usbio.c
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/*
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* FILE: serialio.c
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*
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* Written by Peter Sutton.
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*
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* Module to allow standard output routines to be used via
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* USB keyboard typing. The init_serial_stdio() method must be called before
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* any standard IO methods (e.g. printf). We use a circular buffer to
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* store output messages. (This allows us
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* to print many characters at once to the buffer and have them
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* output by the UART as speed permits.)
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*/
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#include <usbio.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <asciihid.h>
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/* Global variables */
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/* Circular buffer to hold outgoing characters. The insert_pos variable
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* keeps track of the position (0 to OUTPUT_BUFFER_SIZE-1) that the next
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* outgoing character should be written to. bytes_in_buffer keeps
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* count of the number of characters currently stored in the buffer
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* (ranging from 0 to OUTPUT_BUFFER_SIZE). This number of bytes immediately
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* prior to the current insert_pos are the bytes waiting to be output.
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* If the insert_pos reaches the end of the buffer it will wrap around
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* to the beginning (assuming those bytes have been output).
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* NOTE - OUTPUT_BUFFER_SIZE can not be larger than 255 without changing
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* the type of the variables below.
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*/
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#define OUTPUT_BUFFER_SIZE 255
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char out_buffer[OUTPUT_BUFFER_SIZE];
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uint8_t out_insert_pos;
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uint8_t bytes_in_out_buffer;
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// Whether we should be depressing or releasing a key
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uint8_t liftoff = 0;
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static int usb_put_char(char, FILE*);
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/* Setup a stream that uses the uart get and put functions. We will
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* make standard input and output use this stream below.
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*/
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static FILE myStream = FDEV_SETUP_STREAM(usb_put_char, NULL,
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_FDEV_SETUP_WRITE);
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void init_usb_stdio(void) {
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/*
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* Initialise our buffers
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*/
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out_insert_pos = 0;
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bytes_in_out_buffer = 0;
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/* Set up our stream so the put function below is used
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* to write characters via the USB port when we use
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* stdio functions
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*/
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stdout = &myStream;
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}
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static int usb_put_char(char c, FILE* stream) {
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/* Add the character to the buffer for transmission if there
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* is space to do so. We advance the insert_pos to the next
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* character position. If this is beyond the end of the buffer
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* we wrap around back to the beginning of the buffer
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* NOTE: we disable interrupts before modifying the buffer. This
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* prevents the ISR from modifying the buffer at the same time.
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* We reenable them if they were enabled when we entered the
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* function.
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*/
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// Drop overrun
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if(bytes_in_out_buffer >= OUTPUT_BUFFER_SIZE) {
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return 0;
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}
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out_buffer[out_insert_pos++] = c;
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bytes_in_out_buffer++;
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if(out_insert_pos == OUTPUT_BUFFER_SIZE) {
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/* Wrap around buffer pointer if necessary */
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out_insert_pos = 0;
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}
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return 0;
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}
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int make_report(USB_KeyboardReport_Data_t *KeyboardReport) {
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if(liftoff) {
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liftoff = 0;
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return 1;
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} else {
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/* Check if we have data in our buffer */
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if(bytes_in_out_buffer > 0) {
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/* Yes we do - remove the pending byte and output it
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* via the USB. The pending byte (character) is the
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* one which is "bytes_in_buffer" characters before the
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* insert_pos (taking into account that we may
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* need to wrap around to the end of the buffer).
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*/
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char c;
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if(out_insert_pos - bytes_in_out_buffer < 0) {
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/* Need to wrap around */
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c = out_buffer[out_insert_pos - bytes_in_out_buffer
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+ OUTPUT_BUFFER_SIZE];
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} else {
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c = out_buffer[out_insert_pos - bytes_in_out_buffer];
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}
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/* Decrement our count of the number of bytes in the
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* buffer
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*/
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bytes_in_out_buffer--;
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/* Output the character via USB, converting to scancode */
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KeyboardReport->KeyCode[0] = pgm_read_byte(&HIDTable[c]);
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KeyboardReport->Modifier = pgm_read_byte(&modifierTable[c]);
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liftoff = 1;
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return 1;
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} else {
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return 0;
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}
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}
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}
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20
Firmware/Keyboard/usbio.h
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20
Firmware/Keyboard/usbio.h
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@ -0,0 +1,20 @@
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/*
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* serialio.h
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*
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* Author: Peter Sutton
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*
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* Modified by William Toohey
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*/
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#ifndef SERIALIO_H_
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#define SERIALIO_H_
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#include <stdint.h>
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#include <LUFA/Drivers/USB/USB.h>
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/* Initialise IO using USB.
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*/
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void init_usb_stdio(void);
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int make_report(USB_KeyboardReport_Data_t*);
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#endif /* SERIALIO_H_ */
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