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/* Copyright 2018-2021 James Laird-Wah, Islam Sharabash
*
* 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/>.
*/
#include "quantum.h"
#include "i2c_master.h"
#include "led_tables.h"
#include "rgb_matrix.h"
#include <string.h>
#include "raise.h"
#include "wire-protocol-constants.h"
#include "print.h"
#include "leds.h"
// Color order of LEDs is Green, Red, Blue.
typedef struct PACKED {
uint8_t r;
uint8_t g;
uint8_t b;
} raiseRGB;
#define LEDS_PER_HAND 72
#define LED_BANKS 9
#define LEDS_PER_BANK 8
#define LED_BYTES_PER_BANK (sizeof(raiseRGB) * LEDS_PER_BANK)
// shifting << 1 is because drivers/chibios/i2c_master.h expects the address
// shifted.
// 0x58 and 0x59 are the addresses defined in dygma/raise/Hand.h
#define I2C_ADDR_LEFT (0x58 << 1)
#define I2C_ADDR_RIGHT (0x59 << 1)
#define I2C_ADDR(hand) ((hand) ? I2C_ADDR_RIGHT : I2C_ADDR_LEFT)
#define LEFT 0
#define RIGHT 1
static raiseRGB led_pending[2 * LEDS_PER_HAND];
static raiseRGB led_state[2 * LEDS_PER_HAND];
static void set_color(int index, uint8_t r, uint8_t g, uint8_t b) {
int sled = led_map[index];
// The red component of the LED is apparently stronger than the others.
// From: https://github.com/keyboardio/Kaleidoscope/blob/aba8c9ee66bbb5ded15135618d2b2964ee82b2cc/plugins/Kaleidoscope-Hardware-Dygma-Raise/src/kaleidoscope/device/dygma/raise/RaiseSide.cpp#L235-L242
if (r >= 26) {
r -= 26;
}
led_pending[sled].r = r;
led_pending[sled].g = g;
led_pending[sled].b = b;
}
static void set_color_all(uint8_t r, uint8_t g, uint8_t b) {
for (int i = 0; i < DRIVER_LED_TOTAL; i++) set_color(i, r, g, b);
}
static void init(void) {
set_color_all(0,0,0);
}
static void flush(void) {
uint8_t command[1 + LED_BYTES_PER_BANK];
// SUBTLE(ibash) alternate hands when transmitting led data, otherwise the
// mcu in the hand seems to have trouble keeping up with the i2c
// transmission
for (int bank = 0; bank < LED_BANKS; bank++) {
for (int hand = 0; hand < 2; hand++) {
int addr = I2C_ADDR(hand);
int i = (hand * LEDS_PER_HAND) + (bank * LEDS_PER_BANK);
if (memcmp(&led_state[i], &led_pending[i], LED_BYTES_PER_BANK) == 0) {
// No change.
continue;
}
// Update LED state
memcpy(&led_state[i], &led_pending[i], LED_BYTES_PER_BANK);
command[0] = TWI_CMD_LED_BASE + bank;
memcpy(&command[1], &led_pending[i], LED_BYTES_PER_BANK);
i2c_transmit(addr, command, sizeof(command), I2C_TIMEOUT);
// delay to prevent issues with the i2c bus
wait_us(10);
}
}
}
const rgb_matrix_driver_t rgb_matrix_driver = {.init = init, .flush = flush, .set_color = set_color, .set_color_all = set_color_all};
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