viafb: via_i2c.c, via_i2c.h, viamode.c, viamode.h

via_i2c.c, via_i2c.h: Implement i2c specification.
viamode.c, viamode.c: all support modes information.

Signed-off-by: Joseph Chan <josephchan@via.com.tw>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/drivers/video/via/via_i2c.h b/drivers/video/via/via_i2c.h
new file mode 100644
index 000000000000..3a13242a3152
--- /dev/null
+++ b/drivers/video/via/via_i2c.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
+
+ * 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, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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, write to the Free Software
+ * Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#ifndef __VIA_I2C_H__
+#define __VIA_I2C_H__
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+struct via_i2c_stuff {
+        u16 i2c_port;                   /* GPIO or I2C port */
+        struct i2c_adapter adapter;
+        struct i2c_algo_bit_data algo;
+};
+
+#define I2CPORT           0x3c4
+#define I2CPORTINDEX      0x31
+#define GPIOPORT          0x3C4
+#define GPIOPORTINDEX     0x2C
+#define I2C_BUS             1
+#define GPIO_BUS            2
+#define DELAYPORT           0x3C3
+
+int viafb_i2c_readbyte(u8 slave_addr, u8 index, u8 *pdata);
+int viafb_i2c_writebyte(u8 slave_addr, u8 index, u8 data);
+int viafb_i2c_readbytes(u8 slave_addr, u8 index, u8 *buff, int buff_len);
+int viafb_create_i2c_bus(void *par);
+void viafb_delete_i2c_buss(void *par);
+#endif /* __VIA_I2C_H__ */