308 lines
11 KiB
C
308 lines
11 KiB
C
|
/*-*- linux-c -*-
|
||
|
|
* linux/drivers/video/i810_dvt.c -- Intel 810 Discrete Video Timings (Intel)
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001 Antonino Daplas<adaplas@pol.net>
|
||
|
|
* All Rights Reserved
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file COPYING in the main directory of this archive for
|
||
|
|
* more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
|
||
|
|
#include "i810_regs.h"
|
||
|
|
#include "i810.h"
|
||
|
|
|
||
|
|
struct mode_registers std_modes[] = {
|
||
|
|
/* 640x480 @ 60Hz */
|
||
|
|
{ 25000, 0x0013, 0x0003, 0x40, 0x5F, 0x4F, 0x50, 0x82, 0x51, 0x9D,
|
||
|
|
0x0B, 0x10, 0x40, 0xE9, 0x0B, 0xDF, 0x50, 0xE7, 0x04, 0x02,
|
||
|
|
0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22006000,
|
||
|
|
0x22002000, 0x22004000, 0x22006000, 0xC0 },
|
||
|
|
|
||
|
|
/* 640x480 @ 70Hz */
|
||
|
|
{ 28000, 0x0053, 0x0010, 0x40, 0x61, 0x4F, 0x4F, 0x85, 0x52, 0x9A,
|
||
|
|
0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01,
|
||
|
|
0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22005000,
|
||
|
|
0x22002000, 0x22004000, 0x22005000, 0xC0 },
|
||
|
|
|
||
|
|
/* 640x480 @ 72Hz */
|
||
|
|
{ 31000, 0x0013, 0x0002, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x52, 0x97,
|
||
|
|
0x06, 0x0F, 0x40, 0xE8, 0x0B, 0xDF, 0x50, 0xDF, 0x07, 0x02,
|
||
|
|
0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000,
|
||
|
|
0x22003000, 0x22005000, 0x22007000, 0xC0 },
|
||
|
|
|
||
|
|
/* 640x480 @ 75Hz */
|
||
|
|
{ 31000, 0x0013, 0x0002, 0x40, 0x64, 0x4F, 0x4F, 0x88, 0x51, 0x99,
|
||
|
|
0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01,
|
||
|
|
0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000,
|
||
|
|
0x22003000, 0x22005000, 0x22007000, 0xC0 },
|
||
|
|
|
||
|
|
/* 640x480 @ 85Hz */
|
||
|
|
{ 36000, 0x0010, 0x0001, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x56, 0x9D,
|
||
|
|
0xFB, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xFC, 0x01,
|
||
|
|
0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000,
|
||
|
|
0x22003000, 0x22005000, 0x22107000, 0xC0 },
|
||
|
|
|
||
|
|
/* 800x600 @ 56Hz */
|
||
|
|
{ 36000, 0x0010, 0x0001, 0x40, 0x7B, 0x63, 0x63, 0x9F, 0x66, 0x8F,
|
||
|
|
0x6F, 0x10, 0x40, 0x58, 0x0A, 0x57, 0xC8, 0x57, 0x70, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000,
|
||
|
|
0x22003000, 0x22005000, 0x22107000, 0x00 },
|
||
|
|
|
||
|
|
/* 800x600 @ 60Hz */
|
||
|
|
{ 40000, 0x0008, 0x0001, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x68, 0x18,
|
||
|
|
0x72, 0x10, 0x40, 0x58, 0x0C, 0x57, 0xC8, 0x57, 0x73, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x00, 0x22003000, 0x22006000, 0x22108000,
|
||
|
|
0x22003000, 0x22006000, 0x22108000, 0x00 },
|
||
|
|
|
||
|
|
/* 800x600 @ 70Hz */
|
||
|
|
{ 45000, 0x0054, 0x0015, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x68, 0x12,
|
||
|
|
0x6f, 0x10, 0x40, 0x58, 0x0b, 0x57, 0x64, 0x57, 0x70, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000,
|
||
|
|
0x22004000, 0x22007000, 0x2210A000, 0x00 },
|
||
|
|
|
||
|
|
/* 800x600 @ 72Hz */
|
||
|
|
{ 50000, 0x0017, 0x0004, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x6A, 0x19,
|
||
|
|
0x98, 0x10, 0x40, 0x7C, 0x02, 0x57, 0xC8, 0x57, 0x99, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000,
|
||
|
|
0x22004000, 0x22007000, 0x2210A000, 0x00 },
|
||
|
|
|
||
|
|
/* 800x600 @ 75Hz */
|
||
|
|
{ 49000, 0x001F, 0x0006, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x65, 0x0F,
|
||
|
|
0x6F, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x70, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210B000,
|
||
|
|
0x22004000, 0x22007000, 0x2210B000, 0x00 },
|
||
|
|
|
||
|
|
/* 800x600 @ 85Hz */
|
||
|
|
{ 56000, 0x0049, 0x000E, 0x30, 0x7E, 0x63, 0x63, 0x82, 0x67, 0x0F,
|
||
|
|
0x75, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x76, 0x02,
|
||
|
|
0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22108000, 0x2210b000,
|
||
|
|
0x22004000, 0x22108000, 0x2210b000, 0x00 },
|
||
|
|
|
||
|
|
/* 1024x768 @ 60Hz */
|
||
|
|
{ 65000, 0x003F, 0x000A, 0x30, 0xA3, 0x7F, 0x7F, 0x87, 0x83, 0x94,
|
||
|
|
0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03,
|
||
|
|
0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x22109000, 0x2220D000,
|
||
|
|
0x22005000, 0x22109000, 0x2220D000, 0xC0 },
|
||
|
|
|
||
|
|
/* 1024x768 @ 70Hz */
|
||
|
|
{ 75000, 0x0017, 0x0002, 0x30, 0xA1, 0x7F, 0x7F, 0x85, 0x82, 0x93,
|
||
|
|
0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03,
|
||
|
|
0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x2210A000, 0x2220F000,
|
||
|
|
0x22005000, 0x2210A000, 0x2220F000, 0xC0 },
|
||
|
|
|
||
|
|
/* 1024x768 @ 75Hz */
|
||
|
|
{ 78000, 0x0050, 0x0017, 0x20, 0x9F, 0x7F, 0x7F, 0x83, 0x81, 0x8D,
|
||
|
|
0x1E, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x1F, 0x03,
|
||
|
|
0x02, 0x03, 0x02, 0x00, 0x00, 0x22006000, 0x2210B000, 0x22210000,
|
||
|
|
0x22006000, 0x2210B000, 0x22210000, 0x00 },
|
||
|
|
|
||
|
|
/* 1024x768 @ 85Hz */
|
||
|
|
{ 94000, 0x003D, 0x000E, 0x20, 0xA7, 0x7F, 0x7F, 0x8B, 0x85, 0x91,
|
||
|
|
0x26, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x27, 0x03,
|
||
|
|
0x02, 0x03, 0x02, 0x00, 0x00, 0x22007000, 0x2220E000, 0x22212000,
|
||
|
|
0x22007000, 0x2220E000, 0x22212000, 0x00 },
|
||
|
|
|
||
|
|
/* 1152x864 @ 60Hz */
|
||
|
|
{ 80000, 0x0008, 0x0001, 0x20, 0xB3, 0x8F, 0x8F, 0x97, 0x93, 0x9f,
|
||
|
|
0x87, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5f, 0x88, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x00, 0x2220C000, 0x22210000, 0x22415000,
|
||
|
|
0x2220C000, 0x22210000, 0x22415000, 0x00 },
|
||
|
|
|
||
|
|
/* 1152x864 @ 70Hz */
|
||
|
|
{ 96000, 0x000a, 0x0001, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87,
|
||
|
|
0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000,
|
||
|
|
0x22107000, 0x22210000, 0x22415000, 0x00 },
|
||
|
|
|
||
|
|
/* 1152x864 @ 72Hz */
|
||
|
|
{ 99000, 0x001f, 0x0006, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87,
|
||
|
|
0x83, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x84, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000,
|
||
|
|
0x22107000, 0x22210000, 0x22415000, 0x00 },
|
||
|
|
|
||
|
|
/* 1152x864 @ 75Hz */
|
||
|
|
{ 108000, 0x0010, 0x0002, 0x20, 0xC3, 0x8F, 0x8F, 0x87, 0x97, 0x07,
|
||
|
|
0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x01, 0x22107000, 0x22210000, 0x22415000,
|
||
|
|
0x22107000, 0x22210000, 0x22415000, 0x00 },
|
||
|
|
|
||
|
|
/* 1152x864 @ 85Hz */
|
||
|
|
{ 121000, 0x006D, 0x0014, 0x20, 0xc0, 0x8F, 0x8F, 0x84, 0x97, 0x07,
|
||
|
|
0x93, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x94, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x01, 0x2220C000, 0x22210000, 0x22415000,
|
||
|
|
0x2220C000, 0x22210000, 0x22415000, 0x0 },
|
||
|
|
|
||
|
|
/* 1280x960 @ 60Hz */
|
||
|
|
{ 108000, 0x0010, 0x0002, 0x20, 0xDC, 0x9F, 0x9F, 0x80, 0xAB, 0x99,
|
||
|
|
0xE6, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE7, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x22415000,
|
||
|
|
0x2210A000, 0x22210000, 0x22415000, 0x00 },
|
||
|
|
|
||
|
|
/* 1280x960 @ 75Hz */
|
||
|
|
{ 129000, 0x0029, 0x0006, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xaa, 0x1b,
|
||
|
|
0xE8, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE9, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x2241B000,
|
||
|
|
0x2210A000, 0x22210000, 0x2241B000, 0x00 },
|
||
|
|
|
||
|
|
/* 1280x960 @ 85Hz */
|
||
|
|
{ 148000, 0x0042, 0x0009, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xA7, 0x1B,
|
||
|
|
0xF1, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xF2, 0x03,
|
||
|
|
0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22220000, 0x2241D000,
|
||
|
|
0x2210A000, 0x22220000, 0x2241D000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 60Hz */
|
||
|
|
{ 162000, 0x0019, 0x0006, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07,
|
||
|
|
0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04,
|
||
|
|
0x04, 0x04, 0x04, 0x01, 0x00, 0x2210b000, 0x22416000, 0x44419000,
|
||
|
|
0x2210b000, 0x22416000, 0x44419000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 65 Hz */
|
||
|
|
{ 175000, 0x005d, 0x0018, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07,
|
||
|
|
0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04,
|
||
|
|
0x04, 0x04, 0x04, 0x01, 0x00, 0x2210c000, 0x22416000, 0x44419000,
|
||
|
|
0x2210c000, 0x22416000, 0x44419000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 70 Hz */
|
||
|
|
{ 189000, 0x003D, 0x000e, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
|
||
|
|
0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04,
|
||
|
|
0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
|
||
|
|
0x2220e000, 0x22416000, 0x44419000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 72 Hz */
|
||
|
|
{ 195000, 0x003f, 0x000e, 0x10, 0x0b, 0xC7, 0xC7, 0x8f, 0xd5, 0x0b,
|
||
|
|
0xE1, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xe2, 0x04, 0x04,
|
||
|
|
0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
|
||
|
|
0x2220e000, 0x22416000, 0x44419000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 75 Hz */
|
||
|
|
{ 202000, 0x0024, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
|
||
|
|
0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04,
|
||
|
|
0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
|
||
|
|
0x2220e000, 0x22416000, 0x44419000, 0x00 },
|
||
|
|
|
||
|
|
/* 1600x1200 @ 85 Hz */
|
||
|
|
{ 229000, 0x0029, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
|
||
|
|
0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04,
|
||
|
|
0x04, 0x04, 0x01, 0x00, 0x22210000, 0x22416000, 0x0,
|
||
|
|
0x22210000, 0x22416000, 0x0, 0x00 },
|
||
|
|
};
|
||
|
|
|
||
|
|
void round_off_xres(u32 *xres)
|
||
|
|
{
|
||
|
|
if (*xres <= 640)
|
||
|
|
*xres = 640;
|
||
|
|
else if (*xres <= 800)
|
||
|
|
*xres = 800;
|
||
|
|
else if (*xres <= 1024)
|
||
|
|
*xres = 1024;
|
||
|
|
else if (*xres <= 1152)
|
||
|
|
*xres = 1152;
|
||
|
|
else if (*xres <= 1280)
|
||
|
|
*xres = 1280;
|
||
|
|
else
|
||
|
|
*xres = 1600;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void round_off_yres(u32 *xres, u32 *yres)
|
||
|
|
{
|
||
|
|
*yres = (*xres * 3) >> 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
void i810fb_encode_registers(const struct fb_var_screeninfo *var,
|
||
|
|
struct i810fb_par *par, u32 xres, u32 yres)
|
||
|
|
{
|
||
|
|
u32 diff = 0, diff_best = 0xFFFFFFFF, i = 0, i_best = 0;
|
||
|
|
u8 hfl;
|
||
|
|
|
||
|
|
hfl = (u8) ((xres >> 3) - 1);
|
||
|
|
for (i = 0; i < ARRAY_SIZE(std_modes); i++) {
|
||
|
|
if (std_modes[i].cr01 == hfl) {
|
||
|
|
if (std_modes[i].pixclock <= par->regs.pixclock)
|
||
|
|
diff = par->regs.pixclock -
|
||
|
|
std_modes[i].pixclock;
|
||
|
|
if (diff < diff_best) {
|
||
|
|
i_best = i;
|
||
|
|
diff_best = diff;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
par->regs = std_modes[i_best];
|
||
|
|
|
||
|
|
/* overlay */
|
||
|
|
par->ovract = ((xres + var->right_margin + var->hsync_len +
|
||
|
|
var->left_margin - 32) | ((xres - 32) << 16));
|
||
|
|
}
|
||
|
|
|
||
|
|
void i810fb_fill_var_timings(struct fb_var_screeninfo *var)
|
||
|
|
{
|
||
|
|
struct i810fb_par par;
|
||
|
|
u32 total, xres, yres;
|
||
|
|
|
||
|
|
xres = var->xres;
|
||
|
|
yres = var->yres;
|
||
|
|
|
||
|
|
par.regs.pixclock = 1000000000/var->pixclock;
|
||
|
|
i810fb_encode_registers(var, &par, xres, yres);
|
||
|
|
|
||
|
|
total = ((par.regs.cr00 | (par.regs.cr35 & 1) << 8) + 3) << 3;
|
||
|
|
|
||
|
|
var->pixclock = 1000000000/par.regs.pixclock;
|
||
|
|
var->right_margin = (par.regs.cr04 << 3) - xres;
|
||
|
|
var->hsync_len = ((par.regs.cr05 & 0x1F) -
|
||
|
|
(par.regs.cr04 & 0x1F)) << 3;
|
||
|
|
var->left_margin = (total - (xres + var->right_margin +
|
||
|
|
var->hsync_len));
|
||
|
|
var->sync = FB_SYNC_ON_GREEN;
|
||
|
|
if (~(par.regs.msr & (1 << 6)))
|
||
|
|
var->sync |= FB_SYNC_HOR_HIGH_ACT;
|
||
|
|
if (~(par.regs.msr & (1 << 7)))
|
||
|
|
var->sync |= FB_SYNC_VERT_HIGH_ACT;
|
||
|
|
|
||
|
|
|
||
|
|
total = ((par.regs.cr06 | (par.regs.cr30 & 0x0F) << 8)) + 2;
|
||
|
|
var->lower_margin = (par.regs.cr10 |
|
||
|
|
(par.regs.cr32 & 0x0F) << 8) - yres;
|
||
|
|
var->vsync_len = (par.regs.cr11 & 0x0F) - (var->lower_margin & 0x0F);
|
||
|
|
var->upper_margin = total - (yres + var->lower_margin +
|
||
|
|
var->vsync_len);
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 i810_get_watermark(struct fb_var_screeninfo *var,
|
||
|
|
struct i810fb_par *par)
|
||
|
|
{
|
||
|
|
struct mode_registers *params = &par->regs;
|
||
|
|
u32 wmark = 0;
|
||
|
|
|
||
|
|
if (par->mem_freq == 100) {
|
||
|
|
switch (var->bits_per_pixel) {
|
||
|
|
case 8:
|
||
|
|
wmark = params->bpp8_100;
|
||
|
|
break;
|
||
|
|
case 16:
|
||
|
|
wmark = params->bpp16_100;
|
||
|
|
break;
|
||
|
|
case 24:
|
||
|
|
case 32:
|
||
|
|
wmark = params->bpp24_100;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
switch (var->bits_per_pixel) {
|
||
|
|
case 8:
|
||
|
|
wmark = params->bpp8_133;
|
||
|
|
break;
|
||
|
|
case 16:
|
||
|
|
wmark = params->bpp16_133;
|
||
|
|
break;
|
||
|
|
case 24:
|
||
|
|
case 32:
|
||
|
|
wmark = params->bpp24_133;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return wmark;
|
||
|
|
}
|
||
|
|
|