1 files changed, 93 insertions, 0 deletions
diff --git a/src/savage_i2c.c b/src/savage_i2c.c
new file mode 100644
index 0000000..01ac3e2
--- /dev/null
+++ b/src/savage_i2c.c
@@ -0,0 +1,93 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/savage/savage_i2c.c,v 1.3 2002/10/02 20:39:55 alanh Exp $ */
+
+/*
+Copyright (C) 1994-2000 The XFree86 Project, Inc.  All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
+NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the XFree86 Project shall not
+be used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the XFree86 Project.
+*/
+
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "compiler.h"
+
+#include "xf86Pci.h"
+#include "xf86PciInfo.h"
+
+#include "vgaHW.h"
+
+#include "savage_driver.h"
+
+static void
+SavageI2CPutBits(I2CBusPtr b, int clock,  int data)
+{
+    ScrnInfoPtr pScrn = (ScrnInfoPtr)(xf86Screens[b->scrnIndex]);
+    SavagePtr psav = SAVPTR(pScrn);
+    unsigned char reg = 0x10;
+
+    if(clock) reg |= 0x1;
+    if(data)  reg |= 0x2;
+
+    OutI2CREG(psav,reg);
+    /*ErrorF("SavageI2CPutBits: %d %d\n", clock, data); */
+}
+
+static void
+SavageI2CGetBits(I2CBusPtr b, int *clock, int *data)
+{
+    ScrnInfoPtr pScrn = (ScrnInfoPtr)(xf86Screens[b->scrnIndex]);
+    SavagePtr psav = SAVPTR(pScrn);
+    unsigned char reg = 0x10;
+
+    InI2CREG(psav,reg);
+
+    *clock = reg & 0x4;
+    *data = reg & 0x8;
+    
+    /*ErrorF("SavageI2CGetBits: %d %d\n", *clock, *data); */
+}
+
+Bool 
+SavageI2CInit(ScrnInfoPtr pScrn)
+{
+    SavagePtr psav = SAVPTR(pScrn);
+    I2CBusPtr I2CPtr;
+
+    I2CPtr = xf86CreateI2CBusRec();
+    if(!I2CPtr) return FALSE;
+
+    psav->I2C = I2CPtr;
+
+    I2CPtr->BusName    = "I2C bus";
+    I2CPtr->scrnIndex  = pScrn->scrnIndex;
+    I2CPtr->I2CPutBits = SavageI2CPutBits;
+    I2CPtr->I2CGetBits = SavageI2CGetBits;
+
+    if (!xf86I2CBusInit(I2CPtr))
+	return FALSE;
+
+    return TRUE;
+}
+
+
+