From 45129b2bc88efa65f9a0c5ea175e2a7b6ee7934c Mon Sep 17 00:00:00 2001
From: Ilya Guterman <amfernusus@gmail.com>
Date: Thu, 1 Dec 2016 01:24:28 +0200
Subject: [PATCH] hidpp20: define internal LED structure

---
 src/hidpp20.c |  9 ++-------
 src/hidpp20.h | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/src/hidpp20.c b/src/hidpp20.c
index 316e2e37..1cbbaf8b 100644
--- a/src/hidpp20.c
+++ b/src/hidpp20.c
@@ -1653,11 +1653,7 @@ union hidpp20_internal_profile {
 		uint8_t default_dpi;
 		uint8_t switched_dpi;
 		uint16_t dpi[5];
-		struct {
-			uint8_t red;
-			uint8_t green;
-			uint8_t blue;
-		} profile_color;
+		struct hidpp20_color profile_color;
 		uint8_t power_mode;
 		uint8_t angle_snapping;
 		uint8_t reserved[14];
@@ -1667,8 +1663,7 @@ union hidpp20_internal_profile {
 			char txt[16 * 3];
 			uint8_t raw[16 * 3];
 		} name;
-		uint8_t logo_effect[11]; /* G303 only */
-		uint8_t side_effects[11]; /* G303 only */
+		struct hidpp20_internal_led leds[2]; /* G303, g502, g900 only */
 		uint8_t free[24];
 		uint16_t crc;
 	} __attribute__((packed)) profile;
diff --git a/src/hidpp20.h b/src/hidpp20.h
index 42f2db6a..e54ba234 100644
--- a/src/hidpp20.h
+++ b/src/hidpp20.h
@@ -317,6 +317,36 @@ union hidpp20_button_binding {
 } __attribute__((packed));
 _Static_assert(sizeof(union hidpp20_button_binding) == 4, "Invalid size");
 
+struct hidpp20_color {
+	uint8_t red;
+	uint8_t green;
+	uint8_t blue;
+} __attribute__((packed));
+_Static_assert(sizeof(struct hidpp20_color) == 3, "Invalid size");
+
+struct hidpp20_internal_led {
+	uint8_t mode; /* 00 - off; 01 - on; 03 - cycle; 0a - breath */
+	struct hidpp20_color color;
+	union {
+		struct hidpp20_led_cycle {
+			uint16_t pad_1;
+			uint16_t rate;  /* 16000 - 20000Hz */
+			uint8_t brightness; /* 0 - 100 percent */
+			uint16_t pad_2;
+		} __attribute__((packed)) cycle;
+		struct hidpp20_led_breath {
+			uint16_t rate;
+			uint8_t pad_1;
+			uint8_t brightness;
+			uint8_t pad_2;
+			uint16_t pad_3;
+		} __attribute__((packed)) breath;
+	} __attribute__((packed)) effect;
+};
+_Static_assert(sizeof(struct hidpp20_led_cycle) == 7, "Invalid size");
+_Static_assert(sizeof(struct hidpp20_led_breath) == 7, "Invalid size");
+_Static_assert(sizeof(struct hidpp20_internal_led) == 11, "Invalid size");
+
 #define HIDPP20_MACRO_NOOP			0x01
 #define HIDPP20_MACRO_DELAY			0x40
 #define HIDPP20_MACRO_KEY_PRESS			0x43