mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 00:42:16 +00:00
ec66841e49
These are the files which should be available to subdevices compiled outside of drivers/video/via. Cc: ScottFang@viatech.com.cn Cc: JosephChan@via.com.tw Cc: Harald Welte <laforge@gnumonks.org> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/*
|
|
* 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 <linux/via-core.h>
|
|
#include "via_modesetting.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);
|
|
}
|