Publish LumaOps source

2026-09-03 01:18:36 +02:00
commit 7f1c0e5f71
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+/*---------------------------------------------------------*\
+| i2c_smbus_piix4.h                                         |
+|                                                           |
+|   PIIX4 SMBUS driver for MacOS                            |
+|                                                           |
+|   Adam Honse (CalcProgrammer1)                08 Aug 2018 |
+|   Portions based on Linux source code                     |
+|                                                           |
+|   This file is part of the OpenRGB project                |
+|   SPDX-License-Identifier: GPL-2.0-or-later               |
+\*---------------------------------------------------------*/
+
+#pragma once
+
+#include "i2c_smbus.h"
+
+// PIIX4 SMBus address offsets
+#define SMBHSTSTS (0 + piix4_smba)
+#define SMBHSLVSTS (1 + piix4_smba)
+#define SMBHSTCNT (2 + piix4_smba)
+#define SMBHSTCMD (3 + piix4_smba)
+#define SMBHSTADD (4 + piix4_smba)
+#define SMBHSTDAT0 (5 + piix4_smba)
+#define SMBHSTDAT1 (6 + piix4_smba)
+#define SMBBLKDAT (7 + piix4_smba)
+#define SMBSLVCNT (8 + piix4_smba)
+#define SMBSHDWCMD (9 + piix4_smba)
+#define SMBSLVEVT (0xA + piix4_smba)
+#define SMBSLVDAT (0xC + piix4_smba)
+
+#define MAX_TIMEOUT     5000
+#define RETRY_DELAY_US  250
+
+// PIIX4 constants
+#define PIIX4_QUICK             0x00
+#define PIIX4_BYTE              0x04
+#define PIIX4_BYTE_DATA         0x08
+#define PIIX4_WORD_DATA         0x0C
+#define PIIX4_BLOCK_DATA        0x14
+
+class i2c_smbus_piix4 : public i2c_smbus_interface
+{
+public:
+	u16 piix4_smba = 0x0B00;
+    i2c_smbus_piix4();
+    ~i2c_smbus_piix4();
+
+private:
+    int piix4_transaction();
+    s32 piix4_access(u16 addr, char read_write, u8 command, int size, i2c_smbus_data *data);
+    s32 i2c_smbus_xfer(u8 addr, char read_write, u8 command, int size, i2c_smbus_data* data);
+    s32 i2c_xfer(u8 addr, char read_write, int* size, u8* data);
+
+    bool delay_timer;
+};