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Rewrite the Bathroom Epiphanies Frosty Flake matrix and LED handling (#8243)

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* Keyboard: revamp frosty-flake leds

This commit transitions bpiphany/frosty_flake to led_update_{kb,user}
and rewrites the AVR bit twiddling logic to use the standard QMK GPIO
API.

* Keyboard: rewrite frosty_flake's matrix reader to be a lite custom matrix

This commit replaces frosty_flake's custom matrix and debounce logic
with a "lite" custom matrix. In addition to being somewhat clearer, this
allows a consumer of the flake board to choose their own debouncing
algorithm. The one closest to the implementation originally in use is
sym_g, but this opens us up to supporting eager_pk and eager_pr.

The original matrix code was 18 columns for 8 rows, but using a single
row read and unpacking the bits into individual columns. To simplify,
I've changed the key layout to be 8C 18R instead of 18C 8R: this lets us
use a single read directly into the matrix _and_ drop down to a uint8_t
instead of a uint32_t for matrix_row_t.

Since we're no longer implementing our own debouncing and row unpacking,
we save ~400 bytes on the final firmware image.

Fully tested against a CM Storm QFR hosting the flake -- this commit
message was written using the new matrix code.

Firmware Sizes (assuming stock configuration as of 42d6270f2)

Matrix+Debounce     Size (bytes)
---------------     ------------
original            17740
new + sym_g         17284
new + eager_pr      18106
new + eager_pk      18204

I expect that there are some scanning speed benefits as well.

* Keyboard: update frosty_flake's UNUSED_PINS

* Keyboard: Remove meaningless weak redefinitions from frosty

These are not necessary (and all of them already live somewhere in
Quantum).
This commit is contained in:
Dustin L. Howett 2020-03-01 21:17:09 -08:00 committed by GitHub
parent 78069d4826
commit b72a1aa3fe
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
5 changed files with 77 additions and 168 deletions
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6
keyboards/bpiphany/frosty_flake/config.h
View file

@ -36,13 +36,13 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* key matrix size */
#define MATRIX_ROWS 8 // Row0 - Row7 in the schematic
#define MATRIX_COLS 18 // ColA - ColR in the schematic
#define MATRIX_ROWS 18 // ColA - ColR in the schematic
#define MATRIX_COLS 8 // Row0 - Row7 in the schematic
/*
* Keyboard Matrix Assignments
*/
#define UNUSED_PINS { B0, C4, D3 }
#define UNUSED_PINS { C0, C1, C2, C3, C4, D2, D7 }
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
#define DEBOUNCE 5

69
keyboards/bpiphany/frosty_flake/frosty_flake.c
View file

@ -1,63 +1,24 @@
#include "frosty_flake.h"
void matrix_init_kb(void) {
// put your keyboard start-up code here
// runs once when the firmware starts up
void keyboard_pre_init_kb() {
setPinOutput(B7); // num lock
writePinHigh(B7);
setPinOutput(C5); // caps lock
writePinHigh(C7);
setPinOutput(C6); // scroll lock
writePinHigh(C6);
matrix_init_user();
keyboard_pre_init_user();
}
void matrix_scan_kb(void) {
// put your looping keyboard code here
// runs every cycle (a lot)
bool led_update_kb(led_t usb_led) {
// user requests no further processing
if (!led_update_user(usb_led))
return true;
matrix_scan_user();
}
writePin(C5, !usb_led.caps_lock);
writePin(B7, !usb_led.num_lock);
writePin(C6, !usb_led.scroll_lock);
bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
// put your per-action keyboard code here
// runs for every action, just before processing by the firmware
return process_record_user(keycode, record);
}
void led_set_kb(uint8_t usb_led) {
DDRB |= (1<<7);
DDRC |= (1<<5) | (1<<6);
print_dec(usb_led);
if (usb_led & (1<<USB_LED_CAPS_LOCK))
PORTC &= ~(1<<5);
else
PORTC |= (1<<5);
if (usb_led & (1<<USB_LED_NUM_LOCK))
PORTB &= ~(1<<7);
else
PORTB |= (1<<7);
if (usb_led & (1<<USB_LED_SCROLL_LOCK))
PORTC &= ~(1<<6);
else
PORTC |= (1<<6);
led_set_user(usb_led);
}
__attribute__ ((weak))
void matrix_init_user(void) {
}
__attribute__ ((weak))
void matrix_scan_user(void) {
}
__attribute__ ((weak))
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
return true;
}
__attribute__ ((weak))
void led_set_user(uint8_t usb_led) {
}

58
keyboards/bpiphany/frosty_flake/frosty_flake.h
View file

@ -34,16 +34,25 @@
KA4, KP2, KC6, KK6, KC0, KM3, KD0, KA1, KO0, KK0, KL0, KL6, KQ6 \
) \
{ \
/* Columns and rows need to be swapped in the below definition */ \
/* A B C D E F G H I J K L M N O P Q R */ \
/* 0 */ { KC_NO, KB0, KC0, KD0, KC_NO, KF0, KG0, KC_NO, KC_NO, KC_NO, KK0, KL0, KC_NO, KC_NO, KO0, KC_NO, KQ0, KR0 }, \
/* 1 */ { KA1, KB1, KC_NO, KD1, KE1, KF1, KG1, KH1, KI1, KJ1, KK1, KL1, KC_NO, KC_NO, KC_NO, KC_NO, KQ1, KC_NO }, \
/* 2 */ { KC_NO, KB2, KC_NO, KD2, KE2, KF2, KG2, KH2, KI2, KJ2, KK2, KL2, KC_NO, KN2, KC_NO, KP2, KQ2, KR2 }, \
/* 3 */ { KC_NO, KB3, KC_NO, KD3, KE3, KF3, KG3, KH3, KI3, KJ3, KK3, KL3, KM3, KN3, KO3, KC_NO, KQ3, KR3 }, \
/* 4 */ { KA4, KB4, KC_NO, KD4, KE4, KF4, KG4, KH4, KI4, KJ4, KK4, KL4, KC_NO, KC_NO, KO4, KC_NO, KQ4, KR4 }, \
/* 5 */ { KA5, KC_NO, KC5, KD5, KE5, KF5, KG5, KH5, KI5, KJ5, KK5, KL5, KC_NO, KC_NO, KO5, KC_NO, KQ5, KR5 }, \
/* 6 */ { KC_NO, KB6, KC6, KC_NO, KE6, KF6, KG6, KH6, KI6, KJ6, KK6, KL6, KC_NO, KC_NO, KO6, KC_NO, KQ6, KR6 }, \
/* 7 */ { KA7, KB7, KC7, KD7, KE7, KF7, KG7, KH7, KI7, KJ7, KC_NO, KC_NO, KC_NO, KC_NO, KO7, KC_NO, KQ7, KR7 } \
/* 0 1 2 3 4 5 6 7 */ \
/* A */ { KC_NO, KA1, KC_NO, KC_NO, KA4, KA5, KC_NO, KA7, }, \
/* B */ { KB0, KB1, KB2, KB3, KB4, KC_NO, KB6, KB7, }, \
/* C */ { KC0, KC_NO, KC_NO, KC_NO, KC_NO, KC5, KC6, KC7, }, \
/* D */ { KD0, KD1, KD2, KD3, KD4, KD5, KC_NO, KD7, }, \
/* E */ { KC_NO, KE1, KE2, KE3, KE4, KE5, KE6, KE7, }, \
/* F */ { KF0, KF1, KF2, KF3, KF4, KF5, KF6, KF7, }, \
/* G */ { KG0, KG1, KG2, KG3, KG4, KG5, KG6, KG7, }, \
/* H */ { KC_NO, KH1, KH2, KH3, KH4, KH5, KH6, KH7, }, \
/* I */ { KC_NO, KI1, KI2, KI3, KI4, KI5, KI6, KI7, }, \
/* J */ { KC_NO, KJ1, KJ2, KJ3, KJ4, KJ5, KJ6, KJ7, }, \
/* K */ { KK0, KK1, KK2, KK3, KK4, KK5, KK6, KC_NO, }, \
/* L */ { KL0, KL1, KL2, KL3, KL4, KL5, KL6, KC_NO, }, \
/* M */ { KC_NO, KC_NO, KC_NO, KM3, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* N */ { KC_NO, KC_NO, KN2, KN3, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* O */ { KO0, KC_NO, KC_NO, KO3, KO4, KO5, KO6, KO7, }, \
/* P */ { KC_NO, KC_NO, KP2, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* Q */ { KQ0, KQ1, KQ2, KQ3, KQ4, KQ5, KQ6, KQ7, }, \
/* R */ { KR0, KC_NO, KR2, KR3, KR4, KR5, KR6, KR7, }, \
}
/*
@ -74,16 +83,25 @@
KA4, KP2, KC6, KK6, KC0, KM3, KD0, KA1, KO0, KK0, KL0 \
) \
{ \
/* Columns and rows need to be swapped in the below definition */ \
/* A B C D E F G H I J K L M N O P Q R */ \
/* 0 */ { KC_NO, KB0, KC0, KD0, KC_NO, KF0, KG0, KC_NO, KC_NO, KC_NO, KK0, KL0, KC_NO, KC_NO, KO0, KC_NO, KC_NO, KR0 }, \
/* 1 */ { KA1, KB1, KC_NO, KD1, KE1, KF1, KG1, KH1, KI1, KJ1, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO }, \
/* 2 */ { KC_NO, KB2, KC_NO, KD2, KE2, KF2, KG2, KH2, KI2, KJ2, KC_NO, KC_NO, KC_NO, KN2, KC_NO, KP2, KC_NO, KR2 }, \
/* 3 */ { KC_NO, KB3, KC_NO, KD3, KE3, KF3, KG3, KH3, KI3, KJ3, KC_NO, KC_NO, KM3, KN3, KC_NO, KC_NO, KC_NO, KR3 }, \
/* 4 */ { KA4, KB4, KC_NO, KD4, KE4, KF4, KG4, KH4, KI4, KJ4, KK4, KL4, KC_NO, KC_NO, KO4, KC_NO, KQ4, KR4 }, \
/* 5 */ { KA5, KC_NO, KC5, KD5, KE5, KF5, KG5, KH5, KI5, KJ5, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KR5 }, \
/* 6 */ { KC_NO, KB6, KC6, KC_NO, KE6, KF6, KG6, KH6, KI6, KJ6, KK6, KC_NO, KC_NO, KC_NO, KO6, KC_NO, KC_NO, KR6 }, \
/* 7 */ { KA7, KB7, KC7, KD7, KE7, KF7, KG7, KH7, KI7, KJ7, KC_NO, KC_NO, KC_NO, KC_NO, KO7, KC_NO, KQ7, KR7 } \
/* 0 1 2 3 4 5 6 7 */ \
/* A */ { KC_NO, KA1, KC_NO, KC_NO, KA4, KA5, KC_NO, KA7, }, \
/* B */ { KB0, KB1, KB2, KB3, KB4, KC_NO, KB6, KB7, }, \
/* C */ { KC0, KC_NO, KC_NO, KC_NO, KC_NO, KC5, KC6, KC7, }, \
/* D */ { KD0, KD1, KD2, KD3, KD4, KD5, KC_NO, KD7, }, \
/* E */ { KC_NO, KE1, KE2, KE3, KE4, KE5, KE6, KE7, }, \
/* F */ { KF0, KF1, KF2, KF3, KF4, KF5, KF6, KF7, }, \
/* G */ { KG0, KG1, KG2, KG3, KG4, KG5, KG6, KG7, }, \
/* H */ { KC_NO, KH1, KH2, KH3, KH4, KH5, KH6, KH7, }, \
/* I */ { KC_NO, KI1, KI2, KI3, KI4, KI5, KI6, KI7, }, \
/* J */ { KC_NO, KJ1, KJ2, KJ3, KJ4, KJ5, KJ6, KJ7, }, \
/* K */ { KK0, KC_NO, KC_NO, KC_NO, KK4, KC_NO, KK6, KC_NO, }, \
/* L */ { KL0, KC_NO, KC_NO, KC_NO, KL4, KC_NO, KC_NO, KC_NO, }, \
/* M */ { KC_NO, KC_NO, KC_NO, KM3, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* N */ { KC_NO, KC_NO, KN2, KN3, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* O */ { KO0, KC_NO, KC_NO, KC_NO, KO4, KC_NO, KO6, KO7, }, \
/* P */ { KC_NO, KC_NO, KP2, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, }, \
/* Q */ { KC_NO, KC_NO, KC_NO, KC_NO, KQ4, KC_NO, KC_NO, KQ7, }, \
/* R */ { KR0, KC_NO, KR2, KR3, KR4, KR5, KR6, KR7, }, \
}
#define LAYOUT_tkl_ansi( \

106
keyboards/bpiphany/frosty_flake/matrix.c
View file

@ -15,42 +15,15 @@
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <util/delay.h>
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
static uint8_t debouncing = DEBOUNCE;
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
__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) {
}
static matrix_row_t scan_col(void) {
// Each of the 8 columns is read off pins as below
// 7 6 5 4 3 2 1 0
// ,--,--,--,--,--,--,--,--,
// |B0|B3|B2|B1|B6|B4|B5|C7|
// `--`--`--`--`--`--`--`--`
return (
(PINC&(1<<7) ? 0 : ((matrix_row_t)1<<0)) |
(PINB&(1<<5) ? 0 : ((matrix_row_t)1<<1)) |
@ -63,8 +36,8 @@ static matrix_row_t scan_col(void) {
);
}
static void select_col(uint8_t col) {
switch (col) {
static void select_row(uint8_t row) {
switch (row) {
case 0: PORTD = (PORTD & ~0b01111011) | 0b00011011; break;
case 1: PORTD = (PORTD & ~0b01111011) | 0b01000011; break;
case 2: PORTD = (PORTD & ~0b01111011) | 0b01101010; break;
@ -86,7 +59,7 @@ static void select_col(uint8_t col) {
}
}
void matrix_init(void) {
void matrix_init_custom(void) {
/* Row output pins */
DDRD |= 0b01111011;
/* Column input pins */
@ -94,62 +67,19 @@ void matrix_init(void) {
DDRB &= ~0b01111111;
PORTC |= 0b10000000;
PORTB |= 0b01111111;
for (uint8_t i=0; i < MATRIX_ROWS; i++)
matrix[i] = matrix_debouncing[i] = 0;
matrix_init_quantum();
}
uint8_t matrix_scan(void) {
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
select_col(col);
// matrix is 18 uint8_t.
// we select the row (one of 18), then read the column
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
bool has_changed = false;
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
matrix_row_t orig = current_matrix[row];
select_row(row);
_delay_us(3);
matrix_row_t col_scan = scan_col();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = col_scan & (1<<row);
if (prev_bit != curr_bit) {
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
debouncing = DEBOUNCE;
}
}
current_matrix[row] = scan_col();
has_changed |= (orig != current_matrix[row]);
}
if (debouncing) {
if (--debouncing)
_delay_ms(1);
else
for (uint8_t i = 0; i < MATRIX_ROWS; i++)
matrix[i] = matrix_debouncing[i];
}
matrix_scan_quantum();
return 1;
}
inline matrix_row_t matrix_get_row(uint8_t row) {
return matrix[row];
}
void matrix_print(void) {
#ifndef NO_PRINT
print("\nr\\c ABCDEFGHIJKLMNOPQR\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
matrix_row_t matrix_row = matrix_get_row(row);
xprintf("%02X: ", row);
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
bool curr_bit = matrix_row & (1<<col);
xprintf("%c", curr_bit ? '*' : '.');
}
print("\n");
}
#endif
}
uint8_t matrix_key_count(void) {
uint8_t count = 0;
for (uint8_t row = 0; row < MATRIX_ROWS; row++)
count += bitpop32(matrix[row]);
return count;
return has_changed;
}

2
keyboards/bpiphany/frosty_flake/rules.mk
View file

@ -30,7 +30,7 @@ BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no # Audio output on port C6
FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
CUSTOM_MATRIX = yes
CUSTOM_MATRIX = lite
SRC += matrix.c
LAYOUTS = tkl_ansi