Commit 100e74a1 authored by Florian Tobias Schandinat's avatar Florian Tobias Schandinat Committed by Jonathan Corbet
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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: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent 2749413d

drivers/video/via/Makefile

+1 −2
Original line number Diff line number Diff line
@@ -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

drivers/video/via/hw.c

+0 −96
Original line number Diff line number Diff line
@@ -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 */

drivers/video/via/hw.h

+1 −4
Original line number Diff line number Diff line
@@ -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);

drivers/video/via/via_modesetting.c

0 → 100644
+126 −0
Original line number Diff line number Diff line 
/*

 * 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);

}

drivers/video/via/via_modesetting.h

0 → 100644
+38 −0
Original line number Diff line number Diff line 
/*

 * 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__ */

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