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102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/* Copyright 2018-2021 James Laird-Wah, Islam Sharabash
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "quantum.h"
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#include "i2c_master.h"
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#include "led_tables.h"
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#include "rgb_matrix.h"
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#include <string.h>
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#include "raise.h"
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#include "wire-protocol-constants.h"
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#include "print.h"
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#include "leds.h"
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struct __attribute__((packed)) cRGB {
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uint8_t r;
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uint8_t g;
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uint8_t b;
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};
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#define LEDS_PER_HAND 72
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#define LED_BANKS 9
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#define LEDS_PER_BANK 8
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#define LED_BYTES_PER_BANK (sizeof(cRGB) * LEDS_PER_BANK)
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// shifting << 1 is because drivers/chibios/i2c_master.h expects the address
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// shifted.
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// 0x58 and 0x59 are the addresses defined in dygma/raise/Hand.h
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#define I2C_ADDR_LEFT (0x58 << 1)
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#define I2C_ADDR_RIGHT (0x59 << 1)
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#define I2C_ADDR(hand) ((hand) ? I2C_ADDR_RIGHT : I2C_ADDR_LEFT)
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#define LEFT 0
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#define RIGHT 1
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static cRGB led_state[2 * LEDS_PER_HAND];
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void set_all_leds_to(uint8_t r, uint8_t g, uint8_t b) {
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uint8_t buf[] = {TWI_CMD_LED_SET_ALL_TO, b, g, r};
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i2c_transmit(I2C_ADDR(LEFT), buf, sizeof(buf), I2C_TIMEOUT);
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wait_us(10);
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i2c_transmit(I2C_ADDR(RIGHT), buf, sizeof(buf), I2C_TIMEOUT);
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wait_us(10);
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}
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void set_led_to(int led, uint8_t r, uint8_t g, uint8_t b) {
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int sled = led_map[led];
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uint8_t buf[] = {TWI_CMD_LED_SET_ONE_TO, sled & 0x1f, b, g, r};
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int hand = (sled >= LEDS_PER_HAND) ? RIGHT : LEFT;
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i2c_transmit(I2C_ADDR(hand), buf, sizeof(buf), I2C_TIMEOUT);
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wait_us(10);
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}
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static void set_color(int index, uint8_t r, uint8_t g, uint8_t b) {
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int sled = led_map[index];
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led_state[sled].r = r;
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led_state[sled].g = g;
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led_state[sled].b = b;
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}
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static void set_color_all(uint8_t r, uint8_t g, uint8_t b) {
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for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) set_color(i, r, g, b);
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}
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static void init(void) {}
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static void flush(void) {
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uint8_t command[1 + LED_BYTES_PER_BANK];
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// SUBTLE(ibash) alternate hands when transmitting led data, otherwise the
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// mcu in the hand seems to have trouble keeping up with the i2c
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// transmission
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for (int bank = 0; bank < LED_BANKS; bank++) {
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for (int hand = 0; hand < 2; hand++) {
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int addr = I2C_ADDR(hand);
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int i = (hand * LEDS_PER_HAND) + (bank * LEDS_PER_BANK);
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uint8_t *bank_data = (uint8_t *)&led_state[i];
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command[0] = TWI_CMD_LED_BASE + bank;
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memcpy(&command[1], bank_data, LED_BYTES_PER_BANK);
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i2c_transmit(addr, command, sizeof(command), I2C_TIMEOUT);
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// delay to prevent issues with the i2c bus
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wait_us(10);
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}
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}
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}
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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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