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qmk_firmware/keyboards/orthodox/matrix.c

343 lines
8.5 KiB
C

add support for Orthodox keyboard (#1436) * Added orthodox * Modified readme * Modified readme * Modified readme * Updated makefile * Fixed keymap issues * Modified serial communications to allow for over 8 columns * Fixed sizeof command * Fixed some typing issues * Testing issue #1191 (n-column split i2c slave) Based on initial OrthoDox (serial) config by @reddragond and others, this attempts to add TWI (I2C) support. Relevant: <https://github.com/qmk/qmk_firmware/issues/1191> - per @ahtn recommendation, using memcpy for moving slave matrix into slave sending buffer - slave buffer has been enlarged using sizeof(matrix_row_t) - note: i2c.h now includes matrix.h - note: matrix.c includes <string.h> * Added i2c keymap - right col still not working * orthodox: re-added i2c keymap, based on serial * orthodox / issue #1191: trying 9-bit serial - orthodox serial protocol now sends 9 bits per row, instead of 16. Technically it's using MATRIX_COLS, so it might work generically. - ROW_MASK is #defined in serial.c to truncate the checksums to prevent overflows causing false errors. This macro should be renamed if it's kept. * Revert "Fixed sizeof command" This reverts commit f62a5b9939d6a9c0e442ec403de00c14431a55f9. Changes had been made to the lets_split serial driver for testing which mirrored the multi-byte-row changes made to support the orthodox. As the lets_split does not require these changes, and new improvements had been added to the orthodox port only, this commit reverts them. Because the new code could potentially reduce latency over the serial transport, it may be desirable to re-add in the future, by backporting the current working orthodox code. * orthodox: default serial keymap improvements - formatting has been improved - a few keys have been shifted, mainly in Raise and Lower layers, to be more like the default Planck layout - Now available: F12, Home, End, PgUp, PgDn, Media-Next, Media-Play Still To Do: - duplicate for TWI - Alt modifier - GUI modifier * orthodox: failed attempt at 16b/row TWI - duplicated updated serial keymap for "i2c" - removed string.h/memcpy, instead - hardcoded copying of six bytes per update - still doesn't work; master reports interconnect errors on txled * orthodox: adjusted default keymap - this is applied to both 'serial' and 'i2c' keymaps - Alt and GUI have been added, as they were missing - comma and period persist across more layers; Home/PgUp and End/PgDn have been moved slightly to accommodate * orthodox: revert TWI support to minimum to debug - disabled ssd1306 and hardware locking in build configuration - increased TWI buffer from 0x10 to 0x20 bytes - decreased TWI clock from 400000 to 100000 - removed hardcoded TWI multi-byte sending/receiving An 'i2c' build of this was found to work on a rev1 Orthodox, although slave-side col9 was understandably not working. When testing-time permits, features will be gradually re-enabled towards getting the full matrix supported over TWI. * orthodox: TWI (i2c) is working, kludge for col9 The TWI interconnect ("i2c" in directories and build config) is now working for the Orthodox, including the slave half's column #9. This is intended as an interim solution, as it's a kludge, not a fix. Rather than a working multi-byte implementation, the two col9 keys' bits are packed-into and unpacked-from the two unused bits in row1. Furthermore, the TWI clock constant has been reduced to 100000 from 400000, as testing revealed the higher value just didn't work. Testing also found that (with this kludge) increasing the TWI buffer was not necessary. This commit leaves many commented-out lines in matrix.c from previous testing, which will be removed in a future commit once the interconnects' multi-byte problems have been debugged more thoroughly. * orthodox: updated readme.md The readme for the Orthodox now includes a description of the keyboard, allusions to its author and availability, a linked photo, and links to the evolving build guide and the current keymap on KLE. This update has been prepared with /u/Deductivemonkee's assistance.
7 years ago
/*
Copyright 2012 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>
#ifdef USE_I2C
// provides memcpy for copying TWI slave buffer
// #include <string.h>
#endif
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "split_util.h"
#include "pro_micro.h"
#include "config.h"
#ifdef USE_I2C
# include "i2c.h"
#else // USE_SERIAL
# include "serial.h"
#endif
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
#define ERROR_DISCONNECT_COUNT 5
static uint8_t debouncing = DEBOUNCE;
static const int ROWS_PER_HAND = MATRIX_ROWS/2;
static uint8_t error_count = 0;
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
static matrix_row_t read_cols(void);
static void init_cols(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
__attribute__ ((weak))
void matrix_init_kb(void) {
matrix_init_user();
}
__attribute__ ((weak))
void matrix_scan_kb(void) {
matrix_scan_user();
}
__attribute__ ((weak))
void matrix_init_user(void) {
}
__attribute__ ((weak))
void matrix_scan_user(void) {
}
inline
uint8_t matrix_rows(void)
{
return MATRIX_ROWS;
}
inline
uint8_t matrix_cols(void)
{
return MATRIX_COLS;
}
void matrix_init(void)
{
debug_enable = true;
debug_matrix = true;
debug_mouse = true;
// initialize row and col
unselect_rows();
init_cols();
TX_RX_LED_INIT;
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
matrix_init_quantum();
}
uint8_t _matrix_scan(void)
{
// Right hand is stored after the left in the matrix so, we need to offset it
int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
select_row(i);
_delay_us(30); // without this wait read unstable value.
matrix_row_t cols = read_cols();
if (matrix_debouncing[i+offset] != cols) {
matrix_debouncing[i+offset] = cols;
debouncing = DEBOUNCE;
}
unselect_rows();
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
matrix[i+offset] = matrix_debouncing[i+offset];
}
}
}
return 1;
}
#ifdef USE_I2C
// Get rows from other half over i2c
int i2c_transaction(void) {
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
if (err) goto i2c_error;
// start of matrix stored at 0x00
err = i2c_master_write(0x00);
if (err) goto i2c_error;
// Start read
err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
if (err) goto i2c_error;
if (!err) {
/*
// read from TWI byte-by-byte into matrix_row_t memory space
size_t i;
for (i = 0; i < SLAVE_BUFFER_SIZE-1; ++i) {
*((uint8_t*)&matrix[slaveOffset]+i) = i2c_master_read(I2C_ACK);
}
// last byte to be read / end of chunk
*((uint8_t*)&matrix[slaveOffset]+i) = i2c_master_read(I2C_NACK);
*/
// kludge for column #9: unpack bits for keys (2,9) and (3,9) from (1,7) and (1,8)
// i2c_master_read(I2C_ACK);
matrix[slaveOffset+0] = i2c_master_read(I2C_ACK);
// i2c_master_read(I2C_ACK);
matrix[slaveOffset+1] = (matrix_row_t)i2c_master_read(I2C_ACK)\
| (matrix[slaveOffset+0]&0x40U)<<2;
// i2c_master_read(I2C_ACK);
matrix[slaveOffset+2] = (matrix_row_t)i2c_master_read(I2C_NACK)\
| (matrix[slaveOffset+0]&0x80U)<<1;
// clear highest two bits on row 1, where the col9 bits were transported
matrix[slaveOffset+0] &= 0x3F;
i2c_master_stop();
} else {
i2c_error: // the cable is disconnected, or something else went wrong
i2c_reset_state();
return err;
}
return 0;
}
#else // USE_SERIAL
int serial_transaction(void) {
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
if (serial_update_buffers()) {
return 1;
}
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[slaveOffset+i] = serial_slave_buffer[i];
}
return 0;
}
#endif
uint8_t matrix_scan(void)
{
int ret = _matrix_scan();
#ifdef USE_I2C
if( i2c_transaction() ) {
#else // USE_SERIAL
if( serial_transaction() ) {
#endif
// turn on the indicator led when halves are disconnected
TXLED1;
error_count++;
if (error_count > ERROR_DISCONNECT_COUNT) {
// reset other half if disconnected
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[slaveOffset+i] = 0;
}
}
} else {
// turn off the indicator led on no error
TXLED0;
error_count = 0;
}
matrix_scan_quantum();
return ret;
}
void matrix_slave_scan(void) {
_matrix_scan();
int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
#ifdef USE_I2C
// SLAVE_BUFFER_SIZE is from i2c.h
// (MATRIX_ROWS/2*sizeof(matrix_row_t))
// memcpy((void*)i2c_slave_buffer, (const void*)&matrix[offset], (ROWS_PER_HAND*sizeof(matrix_row_t)));
// kludge for column #9: put bits for keys (2,9) and (3,9) into (1,7) and (1,8)
i2c_slave_buffer[0] = (uint8_t)(matrix[offset+0])\
| (matrix[offset+1]&0x100U)>>2\
| (matrix[offset+2]&0x100U)>>1;
i2c_slave_buffer[1] = (uint8_t)(matrix[offset+1]);
i2c_slave_buffer[2] = (uint8_t)(matrix[offset+2]);
// note: looks like a possible operator-precedence bug here, in last version?
/*
i2c_slave_buffer[1] = (uint8_t)matrix[offset+0];
i2c_slave_buffer[2] = (uint8_t)(matrix[offset+1]>>8);
i2c_slave_buffer[3] = (uint8_t)(matrix[offset+1]>>8);
i2c_slave_buffer[4] = (uint8_t)(matrix[offset+2]>>8);
i2c_slave_buffer[5] = (uint8_t)matrix[offset+2];
*/
#else // USE_SERIAL
for (int i = 0; i < ROWS_PER_HAND; ++i) {
serial_slave_buffer[i] = matrix[offset+i];
}
#endif
}
bool matrix_is_modified(void)
{
if (debouncing) return false;
return true;
}
inline
bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[row] & ((matrix_row_t)1<<col));
}
inline
matrix_row_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
void matrix_print(void)
{
print("\nr/c 0123456789ABCDEF\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
phex(row); print(": ");
pbin_reverse16(matrix_get_row(row));
print("\n");
}
}
uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
count += bitpop16(matrix[i]);
}
return count;
}
static void init_cols(void)
{
for(int x = 0; x < MATRIX_COLS; x++) {
_SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF);
_SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
}
}
static matrix_row_t read_cols(void)
{
matrix_row_t result = 0;
for(int x = 0; x < MATRIX_COLS; x++) {
result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
}
return result;
}
static void unselect_rows(void)
{
for(int x = 0; x < ROWS_PER_HAND; x++) {
_SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF);
_SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
}
}
static void select_row(uint8_t row)
{
_SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF);
_SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
}