mirror of
https://github.com/openstenoproject/qmk
synced 2024-11-10 10:39:09 +00:00
7780fd1c01
Adding the makefile options ADB_MOUSE_ENABLE and ADB_MOUSE_ACCMAX. Might have gone overboard with comments, and tried but failed at not adding more than necessary outside the converter/adb_usb/ folder.
296 lines
7.4 KiB
C
296 lines
7.4 KiB
C
/*
|
|
Copyright 2011 Jun Wako <wakojun@gmail.com>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*
|
|
* scan matrix
|
|
*/
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <avr/io.h>
|
|
#include <util/delay.h>
|
|
#include "print.h"
|
|
#include "util.h"
|
|
#include "debug.h"
|
|
#include "adb.h"
|
|
#include "matrix.h"
|
|
#include "report.h"
|
|
#include "host.h"
|
|
|
|
|
|
#if (MATRIX_COLS > 16)
|
|
# error "MATRIX_COLS must not exceed 16"
|
|
#endif
|
|
#if (MATRIX_ROWS > 255)
|
|
# error "MATRIX_ROWS must not exceed 255"
|
|
#endif
|
|
|
|
|
|
static bool is_modified = false;
|
|
static report_mouse_t mouse_report = {};
|
|
|
|
// matrix state buffer(1:on, 0:off)
|
|
#if (MATRIX_COLS <= 8)
|
|
static uint8_t matrix[MATRIX_ROWS];
|
|
#else
|
|
static uint16_t matrix[MATRIX_ROWS];
|
|
#endif
|
|
|
|
#ifdef MATRIX_HAS_GHOST
|
|
static bool matrix_has_ghost_in_row(uint8_t row);
|
|
#endif
|
|
static void register_key(uint8_t key);
|
|
|
|
|
|
inline
|
|
uint8_t matrix_rows(void)
|
|
{
|
|
return MATRIX_ROWS;
|
|
}
|
|
|
|
inline
|
|
uint8_t matrix_cols(void)
|
|
{
|
|
return MATRIX_COLS;
|
|
}
|
|
|
|
void matrix_init(void)
|
|
{
|
|
adb_host_init();
|
|
// wait for keyboard to boot up and receive command
|
|
_delay_ms(1000);
|
|
// Enable keyboard left/right modifier distinction
|
|
// Addr:Keyboard(0010), Cmd:Listen(10), Register3(11)
|
|
// upper byte: reserved bits 0000, device address 0010
|
|
// lower byte: device handler 00000011
|
|
adb_host_listen(0x2B,0x02,0x03);
|
|
|
|
// initialize matrix state: all keys off
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
|
|
|
|
debug_enable = true;
|
|
//debug_matrix = true;
|
|
//debug_keyboard = true;
|
|
//debug_mouse = true;
|
|
print("debug enabled.\n");
|
|
return;
|
|
}
|
|
|
|
#ifdef ADB_MOUSE_ENABLE
|
|
|
|
#ifdef MAX
|
|
#undef MAX
|
|
#endif
|
|
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
|
|
|
|
void adb_mouse_task(void)
|
|
{
|
|
uint16_t codes;
|
|
int16_t x, y;
|
|
static int8_t mouseacc;
|
|
_delay_ms(12); // delay for preventing overload of poor ADB keyboard controller
|
|
codes = adb_host_mouse_recv();
|
|
// If nothing received reset mouse acceleration, and quit.
|
|
if (!codes) {
|
|
mouseacc = 1;
|
|
return;
|
|
};
|
|
// Bit sixteen is button.
|
|
if (~codes & (1 << 15))
|
|
mouse_report.buttons |= MOUSE_BTN1;
|
|
if (codes & (1 << 15))
|
|
mouse_report.buttons &= ~MOUSE_BTN1;
|
|
// lower seven bits are movement, as signed int_7.
|
|
// low byte is X-axis, high byte is Y.
|
|
y = (codes>>8 & 0x3F);
|
|
x = (codes>>0 & 0x3F);
|
|
// bit seven and fifteen is negative
|
|
// usb does not use int_8, but int_7 (measuring distance) with sign-bit.
|
|
if (codes & (1 << 6))
|
|
x = (x-0x40);
|
|
if (codes & (1 << 14))
|
|
y = (y-0x40);
|
|
// Accelerate mouse. (They weren't meant to be used on screens larger than 320x200).
|
|
x *= mouseacc;
|
|
y *= mouseacc;
|
|
// Cap our two bytes per axis to one byte.
|
|
// Easier with a MIN-function, but since -MAX(-a,-b) = MIN(a,b)...
|
|
// I.E. MIN(MAX(x,-127),127) = -MAX(-MAX(x, -127), -127) = MIN(-MIN(-x,127),127)
|
|
mouse_report.x = -MAX(-MAX(x, -127), -127);
|
|
mouse_report.y = -MAX(-MAX(y, -127), -127);
|
|
if (debug_mouse) {
|
|
print("adb_host_mouse_recv: "); print_bin16(codes); print("\n");
|
|
print("adb_mouse raw: [");
|
|
phex(mouseacc); print(" ");
|
|
phex(mouse_report.buttons); print("|");
|
|
print_decs(mouse_report.x); print(" ");
|
|
print_decs(mouse_report.y); print("]\n");
|
|
}
|
|
// Send result by usb.
|
|
host_mouse_send(&mouse_report);
|
|
// increase acceleration of mouse
|
|
mouseacc += ( mouseacc < ADB_MOUSE_MAXACC ? 1 : 0 );
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
uint8_t matrix_scan(void)
|
|
{
|
|
/* extra_key is volatile and more convoluted than necessary because gcc refused
|
|
to generate valid code otherwise. Making extra_key uint8_t and constructing codes
|
|
here via codes = extra_key<<8 | 0xFF; would consistently fail to even LOAD
|
|
extra_key from memory, and leave garbage in the high byte of codes. I tried
|
|
dozens of code variations and it kept generating broken assembly output. So
|
|
beware if attempting to make extra_key code more logical and efficient. */
|
|
static volatile uint16_t extra_key = 0xFFFF;
|
|
uint16_t codes;
|
|
uint8_t key0, key1;
|
|
|
|
is_modified = false;
|
|
|
|
codes = extra_key;
|
|
extra_key = 0xFFFF;
|
|
|
|
if ( codes == 0xFFFF )
|
|
{
|
|
_delay_ms(12); // delay for preventing overload of poor ADB keyboard controller
|
|
codes = adb_host_kbd_recv();
|
|
}
|
|
key0 = codes>>8;
|
|
key1 = codes&0xFF;
|
|
|
|
if (debug_matrix && codes) {
|
|
print("adb_host_kbd_recv: "); phex16(codes); print("\n");
|
|
}
|
|
|
|
if (codes == 0) { // no keys
|
|
return 0;
|
|
} else if (codes == 0x7F7F) { // power key press
|
|
register_key(0x7F);
|
|
} else if (codes == 0xFFFF) { // power key release
|
|
register_key(0xFF);
|
|
} else if (key0 == 0xFF) { // error
|
|
xprintf("adb_host_kbd_recv: ERROR(%d)\n", codes);
|
|
return key1;
|
|
} else {
|
|
register_key(key0);
|
|
if (key1 != 0xFF) // key1 is 0xFF when no second key.
|
|
extra_key = key1<<8 | 0xFF; // process in a separate call
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
bool matrix_is_modified(void)
|
|
{
|
|
return is_modified;
|
|
}
|
|
|
|
inline
|
|
bool matrix_has_ghost(void)
|
|
{
|
|
#ifdef MATRIX_HAS_GHOST
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
if (matrix_has_ghost_in_row(i))
|
|
return true;
|
|
}
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
inline
|
|
bool matrix_is_on(uint8_t row, uint8_t col)
|
|
{
|
|
return (matrix[row] & (1<<col));
|
|
}
|
|
|
|
inline
|
|
#if (MATRIX_COLS <= 8)
|
|
uint8_t matrix_get_row(uint8_t row)
|
|
#else
|
|
uint16_t matrix_get_row(uint8_t row)
|
|
#endif
|
|
{
|
|
return matrix[row];
|
|
}
|
|
|
|
void matrix_print(void)
|
|
{
|
|
if (!debug_matrix) return;
|
|
#if (MATRIX_COLS <= 8)
|
|
print("r/c 01234567\n");
|
|
#else
|
|
print("r/c 0123456789ABCDEF\n");
|
|
#endif
|
|
for (uint8_t row = 0; row < matrix_rows(); row++) {
|
|
phex(row); print(": ");
|
|
#if (MATRIX_COLS <= 8)
|
|
pbin_reverse(matrix_get_row(row));
|
|
#else
|
|
pbin_reverse16(matrix_get_row(row));
|
|
#endif
|
|
#ifdef MATRIX_HAS_GHOST
|
|
if (matrix_has_ghost_in_row(row)) {
|
|
print(" <ghost");
|
|
}
|
|
#endif
|
|
print("\n");
|
|
}
|
|
}
|
|
|
|
uint8_t matrix_key_count(void)
|
|
{
|
|
uint8_t count = 0;
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
#if (MATRIX_COLS <= 8)
|
|
count += bitpop(matrix[i]);
|
|
#else
|
|
count += bitpop16(matrix[i]);
|
|
#endif
|
|
}
|
|
return count;
|
|
}
|
|
|
|
#ifdef MATRIX_HAS_GHOST
|
|
inline
|
|
static bool matrix_has_ghost_in_row(uint8_t row)
|
|
{
|
|
// no ghost exists in case less than 2 keys on
|
|
if (((matrix[row] - 1) & matrix[row]) == 0)
|
|
return false;
|
|
|
|
// ghost exists in case same state as other row
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
|
if (i != row && (matrix[i] & matrix[row]) == matrix[row])
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
inline
|
|
static void register_key(uint8_t key)
|
|
{
|
|
uint8_t col, row;
|
|
col = key&0x07;
|
|
row = (key>>3)&0x0F;
|
|
if (key&0x80) {
|
|
matrix[row] &= ~(1<<col);
|
|
} else {
|
|
matrix[row] |= (1<<col);
|
|
}
|
|
is_modified = true;
|
|
}
|