viafb: move some modesetting functions to a seperate file

viafb: move some modesetting functions to a seperate file

This patch moves the modesetting functions which are already cleaned up
to a seperate file.
Just the beginning to bring some structure in this mess.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

5 files changed, 166 insertions, 102 deletions

diff --git a/drivers/video/via/Makefile b/drivers/video/via/Makefile
index 8c42a42c3db..d496adb0f83 100644
--- a/drivers/video/via/Makefile
+++ b/drivers/video/via/Makefile
@@ -6,5 +6,4 @@ obj-$(CONFIG_FB_VIA) += viafb.o
 
 viafb-y	:=viafbdev.o hw.o via_i2c.o dvi.o lcd.o ioctl.o accel.o \
 	via_utility.o vt1636.o global.o tblDPASetting.o viamode.o tbl1636.o \
-	via-core.o via-gpio.o
-
+	via-core.o via-gpio.o via_modesetting.o
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index 1628a5f93dc..d474fbee335 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -624,102 +624,6 @@ void viafb_set_iga_path(void)
 	}
 }
 
-void via_set_primary_address(u32 addr)
-{
-	DEBUG_MSG(KERN_DEBUG "via_set_primary_address(0x%08X)\n", addr);
-	via_write_reg(VIACR, 0x0D, addr & 0xFF);
-	via_write_reg(VIACR, 0x0C, (addr >> 8) & 0xFF);
-	via_write_reg(VIACR, 0x34, (addr >> 16) & 0xFF);
-	via_write_reg_mask(VIACR, 0x48, (addr >> 24) & 0x1F, 0x1F);
-}
-
-void via_set_secondary_address(u32 addr)
-{
-	DEBUG_MSG(KERN_DEBUG "via_set_secondary_address(0x%08X)\n", addr);
-	/* secondary display supports only quadword aligned memory */
-	via_write_reg_mask(VIACR, 0x62, (addr >> 2) & 0xFE, 0xFE);
-	via_write_reg(VIACR, 0x63, (addr >> 10) & 0xFF);
-	via_write_reg(VIACR, 0x64, (addr >> 18) & 0xFF);
-	via_write_reg_mask(VIACR, 0xA3, (addr >> 26) & 0x07, 0x07);
-}
-
-void via_set_primary_pitch(u32 pitch)
-{
-	DEBUG_MSG(KERN_DEBUG "via_set_primary_pitch(0x%08X)\n", pitch);
-	/* spec does not say that first adapter skips 3 bits but old
-	 * code did it and seems to be reasonable in analogy to 2nd adapter
-	 */
-	pitch = pitch >> 3;
-	via_write_reg(VIACR, 0x13, pitch & 0xFF);
-	via_write_reg_mask(VIACR, 0x35, (pitch >> (8 - 5)) & 0xE0, 0xE0);
-}
-
-void via_set_secondary_pitch(u32 pitch)
-{
-	DEBUG_MSG(KERN_DEBUG "via_set_secondary_pitch(0x%08X)\n", pitch);
-	pitch = pitch >> 3;
-	via_write_reg(VIACR, 0x66, pitch & 0xFF);
-	via_write_reg_mask(VIACR, 0x67, (pitch >> 8) & 0x03, 0x03);
-	via_write_reg_mask(VIACR, 0x71, (pitch >> (10 - 7)) & 0x80, 0x80);
-}
-
-void via_set_primary_color_depth(u8 depth)
-{
-	u8 value;
-
-	DEBUG_MSG(KERN_DEBUG "via_set_primary_color_depth(%d)\n", depth);
-	switch (depth) {
-	case 8:
-		value = 0x00;
-		break;
-	case 15:
-		value = 0x04;
-		break;
-	case 16:
-		value = 0x14;
-		break;
-	case 24:
-		value = 0x0C;
-		break;
-	case 30:
-		value = 0x08;
-		break;
-	default:
-		printk(KERN_WARNING "via_set_primary_color_depth: "
-			"Unsupported depth: %d\n", depth);
-		return;
-	}
-
-	via_write_reg_mask(VIASR, 0x15, value, 0x1C);
-}
-
-void via_set_secondary_color_depth(u8 depth)
-{
-	u8 value;
-
-	DEBUG_MSG(KERN_DEBUG "via_set_secondary_color_depth(%d)\n", depth);
-	switch (depth) {
-	case 8:
-		value = 0x00;
-		break;
-	case 16:
-		value = 0x40;
-		break;
-	case 24:
-		value = 0xC0;
-		break;
-	case 30:
-		value = 0x80;
-		break;
-	default:
-		printk(KERN_WARNING "via_set_secondary_color_depth: "
-			"Unsupported depth: %d\n", depth);
-		return;
-	}
-
-	via_write_reg_mask(VIACR, 0x67, value, 0xC0);
-}
-
 static void set_color_register(u8 index, u8 red, u8 green, u8 blue)
 {
 	outb(0xFF, 0x3C6); /* bit mask of palette */
diff --git a/drivers/video/via/hw.h b/drivers/video/via/hw.h
index 641a5fa4bd3..a58701f3bf7 100644
--- a/drivers/video/via/hw.h
+++ b/drivers/video/via/hw.h
@@ -25,6 +25,7 @@
 #include "viamode.h"
 #include "global.h"
 #include "via_io.h"
+#include "via_modesetting.h"
 
 #define viafb_read_reg(p, i)			via_read_reg(p, i)
 #define viafb_write_reg(i, p, d)		via_write_reg(p, i, d)
@@ -910,10 +911,6 @@ void viafb_update_device_setting(int hres, int vres, int bpp,
 			   int vmode_refresh, int flag);
 
 void viafb_set_iga_path(void);
-void via_set_primary_address(u32 addr);
-void via_set_secondary_address(u32 addr);
-void via_set_primary_pitch(u32 pitch);
-void via_set_secondary_pitch(u32 pitch);
 void viafb_set_primary_color_register(u8 index, u8 red, u8 green, u8 blue);
 void viafb_set_secondary_color_register(u8 index, u8 red, u8 green, u8 blue);
 void viafb_get_fb_info(unsigned int *fb_base, unsigned int *fb_len);
diff --git a/drivers/video/via/via_modesetting.c b/drivers/video/via/via_modesetting.c
new file mode 100644
index 00000000000..69ff2857500
--- /dev/null
+++ b/drivers/video/via/via_modesetting.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
+ * Copyright 2010 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
+ *
+ * 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.
+ */
+/*
+ * basic modesetting functions
+ */
+
+#include <linux/kernel.h>
+#include "via_modesetting.h"
+#include "via_io.h"
+#include "share.h"
+#include "debug.h"
+
+void via_set_primary_address(u32 addr)
+{
+	DEBUG_MSG(KERN_DEBUG "via_set_primary_address(0x%08X)\n", addr);
+	via_write_reg(VIACR, 0x0D, addr & 0xFF);
+	via_write_reg(VIACR, 0x0C, (addr >> 8) & 0xFF);
+	via_write_reg(VIACR, 0x34, (addr >> 16) & 0xFF);
+	via_write_reg_mask(VIACR, 0x48, (addr >> 24) & 0x1F, 0x1F);
+}
+
+void via_set_secondary_address(u32 addr)
+{
+	DEBUG_MSG(KERN_DEBUG "via_set_secondary_address(0x%08X)\n", addr);
+	/* secondary display supports only quadword aligned memory */
+	via_write_reg_mask(VIACR, 0x62, (addr >> 2) & 0xFE, 0xFE);
+	via_write_reg(VIACR, 0x63, (addr >> 10) & 0xFF);
+	via_write_reg(VIACR, 0x64, (addr >> 18) & 0xFF);
+	via_write_reg_mask(VIACR, 0xA3, (addr >> 26) & 0x07, 0x07);
+}
+
+void via_set_primary_pitch(u32 pitch)
+{
+	DEBUG_MSG(KERN_DEBUG "via_set_primary_pitch(0x%08X)\n", pitch);
+	/* spec does not say that first adapter skips 3 bits but old
+	 * code did it and seems to be reasonable in analogy to 2nd adapter
+	 */
+	pitch = pitch >> 3;
+	via_write_reg(VIACR, 0x13, pitch & 0xFF);
+	via_write_reg_mask(VIACR, 0x35, (pitch >> (8 - 5)) & 0xE0, 0xE0);
+}
+
+void via_set_secondary_pitch(u32 pitch)
+{
+	DEBUG_MSG(KERN_DEBUG "via_set_secondary_pitch(0x%08X)\n", pitch);
+	pitch = pitch >> 3;
+	via_write_reg(VIACR, 0x66, pitch & 0xFF);
+	via_write_reg_mask(VIACR, 0x67, (pitch >> 8) & 0x03, 0x03);
+	via_write_reg_mask(VIACR, 0x71, (pitch >> (10 - 7)) & 0x80, 0x80);
+}
+
+void via_set_primary_color_depth(u8 depth)
+{
+	u8 value;
+
+	DEBUG_MSG(KERN_DEBUG "via_set_primary_color_depth(%d)\n", depth);
+	switch (depth) {
+	case 8:
+		value = 0x00;
+		break;
+	case 15:
+		value = 0x04;
+		break;
+	case 16:
+		value = 0x14;
+		break;
+	case 24:
+		value = 0x0C;
+		break;
+	case 30:
+		value = 0x08;
+		break;
+	default:
+		printk(KERN_WARNING "via_set_primary_color_depth: "
+			"Unsupported depth: %d\n", depth);
+		return;
+	}
+
+	via_write_reg_mask(VIASR, 0x15, value, 0x1C);
+}
+
+void via_set_secondary_color_depth(u8 depth)
+{
+	u8 value;
+
+	DEBUG_MSG(KERN_DEBUG "via_set_secondary_color_depth(%d)\n", depth);
+	switch (depth) {
+	case 8:
+		value = 0x00;
+		break;
+	case 16:
+		value = 0x40;
+		break;
+	case 24:
+		value = 0xC0;
+		break;
+	case 30:
+		value = 0x80;
+		break;
+	default:
+		printk(KERN_WARNING "via_set_secondary_color_depth: "
+			"Unsupported depth: %d\n", depth);
+		return;
+	}
+
+	via_write_reg_mask(VIACR, 0x67, value, 0xC0);
+}
diff --git a/drivers/video/via/via_modesetting.h b/drivers/video/via/via_modesetting.h
new file mode 100644
index 00000000000..ae35cfdeb37
--- /dev/null
+++ b/drivers/video/via/via_modesetting.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
+ * Copyright 2010 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
+ *
+ * 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.
+ */
+/*
+ * basic modesetting functions
+ */
+
+#ifndef __VIA_MODESETTING_H__
+#define __VIA_MODESETTING_H__
+
+#include <linux/types.h>
+
+void via_set_primary_address(u32 addr);
+void via_set_secondary_address(u32 addr);
+void via_set_primary_pitch(u32 pitch);
+void via_set_secondary_pitch(u32 pitch);
+void via_set_primary_color_depth(u8 depth);
+void via_set_secondary_color_depth(u8 depth);
+
+#endif /* __VIA_MODESETTING_H__ */