1 files changed, 101 insertions, 0 deletions
diff --git a/keyboards/handwired/dygma/raise/leds.c b/keyboards/handwired/dygma/raise/leds.c
new file mode 100644
index 0000000000..3f6037cbfa
--- /dev/null
+++ b/keyboards/handwired/dygma/raise/leds.c
@@ -0,0 +1,101 @@
+/* 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"
+
+struct __attribute__((packed)) cRGB {
+    uint8_t r;
+    uint8_t g;
+    uint8_t b;
+};
+
+#define LEDS_PER_HAND 72
+#define LED_BANKS 9
+#define LEDS_PER_BANK 8
+#define LED_BYTES_PER_BANK (sizeof(cRGB) * 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 cRGB led_state[2 * LEDS_PER_HAND];
+
+void set_all_leds_to(uint8_t r, uint8_t g, uint8_t b) {
+    uint8_t buf[] = {TWI_CMD_LED_SET_ALL_TO, b, g, r};
+    i2c_transmit(I2C_ADDR(LEFT), buf, sizeof(buf), I2C_TIMEOUT);
+    wait_us(10);
+    i2c_transmit(I2C_ADDR(RIGHT), buf, sizeof(buf), I2C_TIMEOUT);
+    wait_us(10);
+}
+
+void set_led_to(int led, uint8_t r, uint8_t g, uint8_t b) {
+    int     sled  = led_map[led];
+    uint8_t buf[] = {TWI_CMD_LED_SET_ONE_TO, sled & 0x1f, b, g, r};
+    int     hand  = (sled >= LEDS_PER_HAND) ? RIGHT : LEFT;
+    i2c_transmit(I2C_ADDR(hand), buf, sizeof(buf), I2C_TIMEOUT);
+    wait_us(10);
+}
+
+static void set_color(int index, uint8_t r, uint8_t g, uint8_t b) {
+    int sled = led_map[index];
+
+    led_state[sled].r = r;
+    led_state[sled].g = g;
+    led_state[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) {}
+
+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);
+            uint8_t *bank_data = (uint8_t *)&led_state[i];
+
+            command[0] = TWI_CMD_LED_BASE + bank;
+            memcpy(&command[1], bank_data, 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};