1 files changed, 100 insertions, 0 deletions
diff --git a/keyboards/matrix/abelx/aw9523b.c b/keyboards/matrix/abelx/aw9523b.c
new file mode 100644
index 0000000000..8c6e8eaccf
--- /dev/null
+++ b/keyboards/matrix/abelx/aw9523b.c
@@ -0,0 +1,100 @@
+/**
+ * @file aw9523b.c
+ * @brief driver implementation of aw9523b
+ * 
+ * Copyright 2020 astro <yuleiz@gmail.com>
+ *
+ * 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 <stdbool.h>
+#include "aw9523b.h"
+#include "wait.h"
+#include "i2c_master.h"
+
+#define AW9523B_P0_INPUT    0x00
+#define AW9523B_P1_INPUT    0x01
+#define AW9523B_P0_OUTPUT   0x02
+#define AW9523B_P1_OUTPUT   0x03
+#define AW9523B_P0_CONF     0x04
+#define AW9523B_P1_CONF     0x05
+#define AW9523B_P0_INT      0x06
+#define AW9523B_P1_INT      0x07
+
+#define AW9523B_ID          0x10
+#define AW9523B_CTL         0x11
+#define AW9523B_P0_LED      0x12
+#define AW9523B_P1_LED      0x13
+
+
+#define AW9523B_RESET       0x7F
+
+#define TIMEOUT             100
+
+#define PWM2BUF(x) ((x) - AW9523B_PWM_BASE)
+static uint8_t aw9523b_pwm_buf[AW9523B_PWM_SIZE];
+static bool    aw9523b_pwm_dirty = false;
+
+void aw9523b_init(uint8_t addr)
+{
+    i2c_init();
+    // reset chip
+    uint8_t data = 0;
+    i2c_writeReg(addr, AW9523B_RESET, &data, 1, TIMEOUT);
+    wait_ms(1);
+    // set max led current
+    data = 0x03; // 37mA/4
+    i2c_writeReg(addr, AW9523B_CTL, &data, 1, TIMEOUT);
+    // set port to led mode
+    data = 0;
+    i2c_writeReg(addr, AW9523B_P0_LED, &data, 1, TIMEOUT);
+    i2c_writeReg(addr, AW9523B_P1_LED, &data, 1, TIMEOUT);
+    // clear pwm buff
+    for (uint8_t i = 0; i < 16; i++) {
+        aw9523b_pwm_buf[i] = 0;
+    }
+    aw9523b_pwm_dirty = false;
+}
+
+void aw9523b_set_color(int index, uint8_t red, uint8_t green, uint8_t blue)
+{
+    if (index >= AW9523B_RGB_NUM) return;
+
+    aw9523b_led led = g_aw9523b_leds[index];
+    aw9523b_pwm_buf[PWM2BUF(led.r)] = red;
+    aw9523b_pwm_buf[PWM2BUF(led.g)] = green;
+    aw9523b_pwm_buf[PWM2BUF(led.b)] = blue;
+    aw9523b_pwm_dirty = true;
+}
+
+void aw9523b_set_color_all(uint8_t red, uint8_t green, uint8_t blue)
+{
+    for (uint8_t i = 0; i < AW9523B_RGB_NUM; i++) {
+        aw9523b_set_color(i, red, green, blue);
+    }
+    aw9523b_pwm_dirty = true;
+}
+
+void aw9523b_update_pwm_buffers(uint8_t addr)
+{
+    if (aw9523b_pwm_dirty) {
+        for (uint8_t i = 0; i < AW9523B_RGB_NUM; i++){
+            aw9523b_led led = g_aw9523b_leds[i];
+            i2c_writeReg(addr, led.r, &aw9523b_pwm_buf[PWM2BUF(led.r)], 1, TIMEOUT);
+            i2c_writeReg(addr, led.g, &aw9523b_pwm_buf[PWM2BUF(led.g)], 1, TIMEOUT);
+            i2c_writeReg(addr, led.b, &aw9523b_pwm_buf[PWM2BUF(led.b)], 1, TIMEOUT);
+        }
+        aw9523b_pwm_dirty = false;
+    }
+}