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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
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 77 additions and 168 deletions
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73
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);
return true;
}
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) {
}