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linux/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
Kees Cook a641261e99 video: fbdev: matroxfb: use designated initializers 
Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. These were identified during
allyesconfig builds of x86, arm, and arm64, with most initializer fixes
extracted from grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-01-11 17:09:50 +01:00

749 lines
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/*
*
* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
*
* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
*
* Portions Copyright (c) 2001 Matrox Graphics Inc.
*
* Version: 1.65 2002/08/14
*
* MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
*
* Contributors: "menion?" <menion@mindless.com>
* Betatesting, fixes, ideas
*
* "Kurt Garloff" <garloff@suse.de>
* Betatesting, fixes, ideas, videomodes, videomodes timmings
*
* "Tom Rini" <trini@kernel.crashing.org>
* MTRR stuff, PPC cleanups, betatesting, fixes, ideas
*
* "Bibek Sahu" <scorpio@dodds.net>
* Access device through readb|w|l and write b|w|l
* Extensive debugging stuff
*
* "Daniel Haun" <haund@usa.net>
* Testing, hardware cursor fixes
*
* "Scott Wood" <sawst46+@pitt.edu>
* Fixes
*
* "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
* Betatesting
*
* "Kelly French" <targon@hazmat.com>
* "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
* Betatesting, bug reporting
*
* "Pablo Bianucci" <pbian@pccp.com.ar>
* Fixes, ideas, betatesting
*
* "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
* Fixes, enhandcements, ideas, betatesting
*
* "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
* PPC betatesting, PPC support, backward compatibility
*
* "Paul Womar" <Paul@pwomar.demon.co.uk>
* "Owen Waller" <O.Waller@ee.qub.ac.uk>
* PPC betatesting
*
* "Thomas Pornin" <pornin@bolet.ens.fr>
* Alpha betatesting
*
* "Pieter van Leuven" <pvl@iae.nl>
* "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
* G100 testing
*
* "H. Peter Arvin" <hpa@transmeta.com>
* Ideas
*
* "Cort Dougan" <cort@cs.nmt.edu>
* CHRP fixes and PReP cleanup
*
* "Mark Vojkovich" <mvojkovi@ucsd.edu>
* G400 support
*
* (following author is not in any relation with this code, but his code
* is included in this driver)
*
* Based on framebuffer driver for VBE 2.0 compliant graphic boards
* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
*
* (following author is not in any relation with this code, but his ideas
* were used when writing this driver)
*
* FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
*
*/
#include "matroxfb_Ti3026.h"
#include "matroxfb_misc.h"
#include "matroxfb_accel.h"
#include <linux/matroxfb.h>
#ifdef CONFIG_FB_MATROX_MILLENIUM
#define outTi3026 matroxfb_DAC_out
#define inTi3026 matroxfb_DAC_in
#define TVP3026_INDEX 0x00
#define TVP3026_PALWRADD 0x00
#define TVP3026_PALDATA 0x01
#define TVP3026_PIXRDMSK 0x02
#define TVP3026_PALRDADD 0x03
#define TVP3026_CURCOLWRADD 0x04
#define TVP3026_CLOVERSCAN 0x00
#define TVP3026_CLCOLOR0 0x01
#define TVP3026_CLCOLOR1 0x02
#define TVP3026_CLCOLOR2 0x03
#define TVP3026_CURCOLDATA 0x05
#define TVP3026_CURCOLRDADD 0x07
#define TVP3026_CURCTRL 0x09
#define TVP3026_X_DATAREG 0x0A
#define TVP3026_CURRAMDATA 0x0B
#define TVP3026_CURPOSXL 0x0C
#define TVP3026_CURPOSXH 0x0D
#define TVP3026_CURPOSYL 0x0E
#define TVP3026_CURPOSYH 0x0F
#define TVP3026_XSILICONREV 0x01
#define TVP3026_XCURCTRL 0x06
#define TVP3026_XCURCTRL_DIS 0x00 /* transparent, transparent, transparent, transparent */
#define TVP3026_XCURCTRL_3COLOR 0x01 /* transparent, 0, 1, 2 */
#define TVP3026_XCURCTRL_XGA 0x02 /* 0, 1, transparent, complement */
#define TVP3026_XCURCTRL_XWIN 0x03 /* transparent, transparent, 0, 1 */
#define TVP3026_XCURCTRL_BLANK2048 0x00
#define TVP3026_XCURCTRL_BLANK4096 0x10
#define TVP3026_XCURCTRL_INTERLACED 0x20
#define TVP3026_XCURCTRL_ODD 0x00 /* ext.signal ODD/\EVEN */
#define TVP3026_XCURCTRL_EVEN 0x40 /* ext.signal EVEN/\ODD */
#define TVP3026_XCURCTRL_INDIRECT 0x00
#define TVP3026_XCURCTRL_DIRECT 0x80
#define TVP3026_XLATCHCTRL 0x0F
#define TVP3026_XLATCHCTRL_1_1 0x06
#define TVP3026_XLATCHCTRL_2_1 0x07
#define TVP3026_XLATCHCTRL_4_1 0x06
#define TVP3026_XLATCHCTRL_8_1 0x06
#define TVP3026_XLATCHCTRL_16_1 0x06
#define TVP3026A_XLATCHCTRL_4_3 0x06 /* ??? do not understand... but it works... !!! */
#define TVP3026A_XLATCHCTRL_8_3 0x07
#define TVP3026B_XLATCHCTRL_4_3 0x08
#define TVP3026B_XLATCHCTRL_8_3 0x06 /* ??? do not understand... but it works... !!! */
#define TVP3026_XTRUECOLORCTRL 0x18
#define TVP3026_XTRUECOLORCTRL_VRAM_SHIFT_ACCEL 0x00
#define TVP3026_XTRUECOLORCTRL_VRAM_SHIFT_TVP 0x20
#define TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR 0x80
#define TVP3026_XTRUECOLORCTRL_TRUECOLOR 0x40 /* paletized */
#define TVP3026_XTRUECOLORCTRL_DIRECTCOLOR 0x00
#define TVP3026_XTRUECOLORCTRL_24_ALTERNATE 0x08 /* 5:4/5:2 instead of 4:3/8:3 */
#define TVP3026_XTRUECOLORCTRL_RGB_888 0x16 /* 4:3/8:3 (or 5:4/5:2) */
#define TVP3026_XTRUECOLORCTRL_BGR_888 0x17
#define TVP3026_XTRUECOLORCTRL_ORGB_8888 0x06
#define TVP3026_XTRUECOLORCTRL_BGRO_8888 0x07
#define TVP3026_XTRUECOLORCTRL_RGB_565 0x05
#define TVP3026_XTRUECOLORCTRL_ORGB_1555 0x04
#define TVP3026_XTRUECOLORCTRL_RGB_664 0x03
#define TVP3026_XTRUECOLORCTRL_RGBO_4444 0x01
#define TVP3026_XMUXCTRL 0x19
#define TVP3026_XMUXCTRL_MEMORY_8BIT 0x01 /* - */
#define TVP3026_XMUXCTRL_MEMORY_16BIT 0x02 /* - */
#define TVP3026_XMUXCTRL_MEMORY_32BIT 0x03 /* 2MB RAM, 512K * 4 */
#define TVP3026_XMUXCTRL_MEMORY_64BIT 0x04 /* >2MB RAM, 512K * 8 & more */
#define TVP3026_XMUXCTRL_PIXEL_4BIT 0x40 /* L0,H0,L1,H1... */
#define TVP3026_XMUXCTRL_PIXEL_4BIT_SWAPPED 0x60 /* H0,L0,H1,L1... */
#define TVP3026_XMUXCTRL_PIXEL_8BIT 0x48
#define TVP3026_XMUXCTRL_PIXEL_16BIT 0x50
#define TVP3026_XMUXCTRL_PIXEL_32BIT 0x58
#define TVP3026_XMUXCTRL_VGA 0x98 /* VGA MEMORY, 8BIT PIXEL */
#define TVP3026_XCLKCTRL 0x1A
#define TVP3026_XCLKCTRL_DIV1 0x00
#define TVP3026_XCLKCTRL_DIV2 0x10
#define TVP3026_XCLKCTRL_DIV4 0x20
#define TVP3026_XCLKCTRL_DIV8 0x30
#define TVP3026_XCLKCTRL_DIV16 0x40
#define TVP3026_XCLKCTRL_DIV32 0x50
#define TVP3026_XCLKCTRL_DIV64 0x60
#define TVP3026_XCLKCTRL_CLKSTOPPED 0x70
#define TVP3026_XCLKCTRL_SRC_CLK0 0x00
#define TVP3026_XCLKCTRL_SRC_CLK1 0x01
#define TVP3026_XCLKCTRL_SRC_CLK2 0x02 /* CLK2 is TTL source*/
#define TVP3026_XCLKCTRL_SRC_NCLK2 0x03 /* not CLK2 is TTL source */
#define TVP3026_XCLKCTRL_SRC_ECLK2 0x04 /* CLK2 and not CLK2 is ECL source */
#define TVP3026_XCLKCTRL_SRC_PLL 0x05
#define TVP3026_XCLKCTRL_SRC_DIS 0x06 /* disable & poweroff internal clock */
#define TVP3026_XCLKCTRL_SRC_CLK0VGA 0x07
#define TVP3026_XPALETTEPAGE 0x1C
#define TVP3026_XGENCTRL 0x1D
#define TVP3026_XGENCTRL_HSYNC_POS 0x00
#define TVP3026_XGENCTRL_HSYNC_NEG 0x01
#define TVP3026_XGENCTRL_VSYNC_POS 0x00
#define TVP3026_XGENCTRL_VSYNC_NEG 0x02
#define TVP3026_XGENCTRL_LITTLE_ENDIAN 0x00
#define TVP3026_XGENCTRL_BIG_ENDIAN 0x08
#define TVP3026_XGENCTRL_BLACK_0IRE 0x00
#define TVP3026_XGENCTRL_BLACK_75IRE 0x10
#define TVP3026_XGENCTRL_NO_SYNC_ON_GREEN 0x00
#define TVP3026_XGENCTRL_SYNC_ON_GREEN 0x20
#define TVP3026_XGENCTRL_OVERSCAN_DIS 0x00
#define TVP3026_XGENCTRL_OVERSCAN_EN 0x40
#define TVP3026_XMISCCTRL 0x1E
#define TVP3026_XMISCCTRL_DAC_PUP 0x00
#define TVP3026_XMISCCTRL_DAC_PDOWN 0x01
#define TVP3026_XMISCCTRL_DAC_EXT 0x00 /* or 8, bit 3 is ignored */
#define TVP3026_XMISCCTRL_DAC_6BIT 0x04
#define TVP3026_XMISCCTRL_DAC_8BIT 0x0C
#define TVP3026_XMISCCTRL_PSEL_DIS 0x00
#define TVP3026_XMISCCTRL_PSEL_EN 0x10
#define TVP3026_XMISCCTRL_PSEL_LOW 0x00 /* PSEL high selects directcolor */
#define TVP3026_XMISCCTRL_PSEL_HIGH 0x20 /* PSEL high selects truecolor or pseudocolor */
#define TVP3026_XGENIOCTRL 0x2A
#define TVP3026_XGENIODATA 0x2B
#define TVP3026_XPLLADDR 0x2C
#define TVP3026_XPLLADDR_X(LOOP,MCLK,PIX) (((LOOP)<<4) | ((MCLK)<<2) | (PIX))
#define TVP3026_XPLLDATA_N 0x00
#define TVP3026_XPLLDATA_M 0x01
#define TVP3026_XPLLDATA_P 0x02
#define TVP3026_XPLLDATA_STAT 0x03
#define TVP3026_XPIXPLLDATA 0x2D
#define TVP3026_XMEMPLLDATA 0x2E
#define TVP3026_XLOOPPLLDATA 0x2F
#define TVP3026_XCOLKEYOVRMIN 0x30
#define TVP3026_XCOLKEYOVRMAX 0x31
#define TVP3026_XCOLKEYREDMIN 0x32
#define TVP3026_XCOLKEYREDMAX 0x33
#define TVP3026_XCOLKEYGREENMIN 0x34
#define TVP3026_XCOLKEYGREENMAX 0x35
#define TVP3026_XCOLKEYBLUEMIN 0x36
#define TVP3026_XCOLKEYBLUEMAX 0x37
#define TVP3026_XCOLKEYCTRL 0x38
#define TVP3026_XCOLKEYCTRL_OVR_EN 0x01
#define TVP3026_XCOLKEYCTRL_RED_EN 0x02
#define TVP3026_XCOLKEYCTRL_GREEN_EN 0x04
#define TVP3026_XCOLKEYCTRL_BLUE_EN 0x08
#define TVP3026_XCOLKEYCTRL_NEGATE 0x10
#define TVP3026_XCOLKEYCTRL_ZOOM1 0x00
#define TVP3026_XCOLKEYCTRL_ZOOM2 0x20
#define TVP3026_XCOLKEYCTRL_ZOOM4 0x40
#define TVP3026_XCOLKEYCTRL_ZOOM8 0x60
#define TVP3026_XCOLKEYCTRL_ZOOM16 0x80
#define TVP3026_XCOLKEYCTRL_ZOOM32 0xA0
#define TVP3026_XMEMPLLCTRL 0x39
#define TVP3026_XMEMPLLCTRL_DIV(X) (((X)-1)>>1) /* 2,4,6,8,10,12,14,16, division applied to LOOP PLL after divide by 2^P */
#define TVP3026_XMEMPLLCTRL_STROBEMKC4 0x08
#define TVP3026_XMEMPLLCTRL_MCLK_DOTCLOCK 0x00 /* MKC4 */
#define TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL 0x10 /* MKC4 */
#define TVP3026_XMEMPLLCTRL_RCLK_PIXPLL 0x00
#define TVP3026_XMEMPLLCTRL_RCLK_LOOPPLL 0x20
#define TVP3026_XMEMPLLCTRL_RCLK_DOTDIVN 0x40 /* dot clock divided by loop pclk N prescaler */
#define TVP3026_XSENSETEST 0x3A
#define TVP3026_XTESTMODEDATA 0x3B
#define TVP3026_XCRCREML 0x3C
#define TVP3026_XCRCREMH 0x3D
#define TVP3026_XCRCBITSEL 0x3E
#define TVP3026_XID 0x3F
static const unsigned char DACseq[] =
{ TVP3026_XLATCHCTRL, TVP3026_XTRUECOLORCTRL,
TVP3026_XMUXCTRL, TVP3026_XCLKCTRL,
TVP3026_XPALETTEPAGE,
TVP3026_XGENCTRL,
TVP3026_XMISCCTRL,
TVP3026_XGENIOCTRL,
TVP3026_XGENIODATA,
TVP3026_XCOLKEYOVRMIN, TVP3026_XCOLKEYOVRMAX, TVP3026_XCOLKEYREDMIN, TVP3026_XCOLKEYREDMAX,
TVP3026_XCOLKEYGREENMIN, TVP3026_XCOLKEYGREENMAX, TVP3026_XCOLKEYBLUEMIN, TVP3026_XCOLKEYBLUEMAX,
TVP3026_XCOLKEYCTRL,
TVP3026_XMEMPLLCTRL, TVP3026_XSENSETEST, TVP3026_XCURCTRL };
#define POS3026_XLATCHCTRL 0
#define POS3026_XTRUECOLORCTRL 1
#define POS3026_XMUXCTRL 2
#define POS3026_XCLKCTRL 3
#define POS3026_XGENCTRL 5
#define POS3026_XMISCCTRL 6
#define POS3026_XMEMPLLCTRL 18
#define POS3026_XCURCTRL 20
static const unsigned char MGADACbpp32[] =
{ TVP3026_XLATCHCTRL_2_1, TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_ORGB_8888,
0x00, TVP3026_XCLKCTRL_DIV1 | TVP3026_XCLKCTRL_SRC_PLL,
0x00,
TVP3026_XGENCTRL_HSYNC_POS | TVP3026_XGENCTRL_VSYNC_POS | TVP3026_XGENCTRL_LITTLE_ENDIAN | TVP3026_XGENCTRL_BLACK_0IRE | TVP3026_XGENCTRL_NO_SYNC_ON_GREEN | TVP3026_XGENCTRL_OVERSCAN_DIS,
TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_HIGH,
0x00,
0x1E,
0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF,
TVP3026_XCOLKEYCTRL_ZOOM1,
0x00, 0x00, TVP3026_XCURCTRL_DIS };
static int Ti3026_calcclock(const struct matrox_fb_info *minfo,
unsigned int freq, unsigned int fmax, int *in,
int *feed, int *post)
{
unsigned int fvco;
unsigned int lin, lfeed, lpost;
DBG(__func__)
fvco = PLL_calcclock(minfo, freq, fmax, &lin, &lfeed, &lpost);
fvco >>= (*post = lpost);
*in = 64 - lin;
*feed = 64 - lfeed;
return fvco;
}
static int Ti3026_setpclk(struct matrox_fb_info *minfo, int clk)
{
unsigned int f_pll;
unsigned int pixfeed, pixin, pixpost;
struct matrox_hw_state *hw = &minfo->hw;
DBG(__func__)
f_pll = Ti3026_calcclock(minfo, clk, minfo->max_pixel_clock, &pixin, &pixfeed, &pixpost);
hw->DACclk[0] = pixin | 0xC0;
hw->DACclk[1] = pixfeed;
hw->DACclk[2] = pixpost | 0xB0;
{
unsigned int loopfeed, loopin, looppost, loopdiv, z;
unsigned int Bpp;
Bpp = minfo->curr.final_bppShift;
if (minfo->fbcon.var.bits_per_pixel == 24) {
loopfeed = 3; /* set lm to any possible value */
loopin = 3 * 32 / Bpp;
} else {
loopfeed = 4;
loopin = 4 * 32 / Bpp;
}
z = (110000 * loopin) / (f_pll * loopfeed);
loopdiv = 0; /* div 2 */
if (z < 2)
looppost = 0;
else if (z < 4)
looppost = 1;
else if (z < 8)
looppost = 2;
else {
looppost = 3;
loopdiv = z/16;
}
if (minfo->fbcon.var.bits_per_pixel == 24) {
hw->DACclk[3] = ((65 - loopin) & 0x3F) | 0xC0;
hw->DACclk[4] = (65 - loopfeed) | 0x80;
if (minfo->accel.ramdac_rev > 0x20) {
if (isInterleave(minfo))
hw->DACreg[POS3026_XLATCHCTRL] = TVP3026B_XLATCHCTRL_8_3;
else {
hw->DACclk[4] &= ~0xC0;
hw->DACreg[POS3026_XLATCHCTRL] = TVP3026B_XLATCHCTRL_4_3;
}
} else {
if (isInterleave(minfo))
; /* default... */
else {
hw->DACclk[4] ^= 0xC0; /* change from 0x80 to 0x40 */
hw->DACreg[POS3026_XLATCHCTRL] = TVP3026A_XLATCHCTRL_4_3;
}
}
hw->DACclk[5] = looppost | 0xF8;
if (minfo->devflags.mga_24bpp_fix)
hw->DACclk[5] ^= 0x40;
} else {
hw->DACclk[3] = ((65 - loopin) & 0x3F) | 0xC0;
hw->DACclk[4] = 65 - loopfeed;
hw->DACclk[5] = looppost | 0xF0;
}
hw->DACreg[POS3026_XMEMPLLCTRL] = loopdiv | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL | TVP3026_XMEMPLLCTRL_RCLK_LOOPPLL;
}
return 0;
}
static int Ti3026_init(struct matrox_fb_info *minfo, struct my_timming *m)
{
u_int8_t muxctrl = isInterleave(minfo) ? TVP3026_XMUXCTRL_MEMORY_64BIT : TVP3026_XMUXCTRL_MEMORY_32BIT;
struct matrox_hw_state *hw = &minfo->hw;
DBG(__func__)
memcpy(hw->DACreg, MGADACbpp32, sizeof(MGADACbpp32));
switch (minfo->fbcon.var.bits_per_pixel) {
case 4: hw->DACreg[POS3026_XLATCHCTRL] = TVP3026_XLATCHCTRL_16_1; /* or _8_1, they are same */
hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR;
hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_4BIT;
hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV8;
hw->DACreg[POS3026_XMISCCTRL] = TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_LOW;
break;
case 8: hw->DACreg[POS3026_XLATCHCTRL] = TVP3026_XLATCHCTRL_8_1; /* or _4_1, they are same */
hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR;
hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_8BIT;
hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV4;
hw->DACreg[POS3026_XMISCCTRL] = TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_LOW;
break;
case 16:
/* XLATCHCTRL should be _4_1 / _2_1... Why is not? (_2_1 is used every time) */
hw->DACreg[POS3026_XTRUECOLORCTRL] = (minfo->fbcon.var.green.length == 5) ? (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_ORGB_1555) : (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_RGB_565);
hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_16BIT;
hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV2;
break;
case 24:
/* XLATCHCTRL is: for (A) use _4_3 (?_8_3 is same? TBD), for (B) it is set in setpclk */
hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_RGB_888;
hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_32BIT;
hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV4;
break;
case 32:
/* XLATCHCTRL should be _2_1 / _1_1... Why is not? (_2_1 is used every time) */
hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_32BIT;
break;
default:
return 1; /* TODO: failed */
}
if (matroxfb_vgaHWinit(minfo, m)) return 1;
/* set SYNC */
hw->MiscOutReg = 0xCB;
if (m->sync & FB_SYNC_HOR_HIGH_ACT)
hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_HSYNC_NEG;
if (m->sync & FB_SYNC_VERT_HIGH_ACT)
hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_VSYNC_NEG;
if (m->sync & FB_SYNC_ON_GREEN)
hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_SYNC_ON_GREEN;
/* set DELAY */
if (minfo->video.len < 0x400000)
hw->CRTCEXT[3] |= 0x08;
else if (minfo->video.len > 0x400000)
hw->CRTCEXT[3] |= 0x10;
/* set HWCURSOR */
if (m->interlaced) {
hw->DACreg[POS3026_XCURCTRL] |= TVP3026_XCURCTRL_INTERLACED;
}
if (m->HTotal >= 1536)
hw->DACreg[POS3026_XCURCTRL] |= TVP3026_XCURCTRL_BLANK4096;
/* set interleaving */
hw->MXoptionReg &= ~0x00001000;
if (isInterleave(minfo)) hw->MXoptionReg |= 0x00001000;
/* set DAC */
Ti3026_setpclk(minfo, m->pixclock);
return 0;
}
static void ti3026_setMCLK(struct matrox_fb_info *minfo, int fout)
{
unsigned int f_pll;
unsigned int pclk_m, pclk_n, pclk_p;
unsigned int mclk_m, mclk_n, mclk_p;
unsigned int rfhcnt, mclk_ctl;
int tmout;
DBG(__func__)
f_pll = Ti3026_calcclock(minfo, fout, minfo->max_pixel_clock, &mclk_n, &mclk_m, &mclk_p);
/* save pclk */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
pclk_n = inTi3026(minfo, TVP3026_XPIXPLLDATA);
outTi3026(minfo, TVP3026_XPLLADDR, 0xFD);
pclk_m = inTi3026(minfo, TVP3026_XPIXPLLDATA);
outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
pclk_p = inTi3026(minfo, TVP3026_XPIXPLLDATA);
/* stop pclk */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);
/* set pclk to new mclk */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_n | 0xC0);
outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_m);
outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_p | 0xB0);
/* wait for PLL to lock */
for (tmout = 500000; tmout; tmout--) {
if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
break;
udelay(10);
}
if (!tmout)
printk(KERN_ERR "matroxfb: Temporary pixel PLL not locked after 5 secs\n");
/* output pclk on mclk pin */
mclk_ctl = inTi3026(minfo, TVP3026_XMEMPLLCTRL);
outTi3026(minfo, TVP3026_XMEMPLLCTRL, mclk_ctl & 0xE7);
outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl & 0xE7) | TVP3026_XMEMPLLCTRL_STROBEMKC4);
/* stop MCLK */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFB);
outTi3026(minfo, TVP3026_XMEMPLLDATA, 0x00);
/* set mclk to new freq */
outTi3026(minfo, TVP3026_XPLLADDR, 0xF3);
outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_n | 0xC0);
outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_m);
outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_p | 0xB0);
/* wait for PLL to lock */
for (tmout = 500000; tmout; tmout--) {
if (inTi3026(minfo, TVP3026_XMEMPLLDATA) & 0x40)
break;
udelay(10);
}
if (!tmout)
printk(KERN_ERR "matroxfb: Memory PLL not locked after 5 secs\n");
f_pll = f_pll * 333 / (10000 << mclk_p);
if (isMilleniumII(minfo)) {
rfhcnt = (f_pll - 128) / 256;
if (rfhcnt > 15)
rfhcnt = 15;
} else {
rfhcnt = (f_pll - 64) / 128;
if (rfhcnt > 15)
rfhcnt = 0;
}
minfo->hw.MXoptionReg = (minfo->hw.MXoptionReg & ~0x000F0000) | (rfhcnt << 16);
pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, minfo->hw.MXoptionReg);
/* output MCLK to MCLK pin */
outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl & 0xE7) | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL);
outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl ) | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL | TVP3026_XMEMPLLCTRL_STROBEMKC4);
/* stop PCLK */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);
/* restore pclk */
outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_n);
outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_m);
outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_p);
/* wait for PLL to lock */
for (tmout = 500000; tmout; tmout--) {
if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
break;
udelay(10);
}
if (!tmout)
printk(KERN_ERR "matroxfb: Pixel PLL not locked after 5 secs\n");
}
static void ti3026_ramdac_init(struct matrox_fb_info *minfo)
{
DBG(__func__)
minfo->features.pll.vco_freq_min = 110000;
minfo->features.pll.ref_freq = 114545;
minfo->features.pll.feed_div_min = 2;
minfo->features.pll.feed_div_max = 24;
minfo->features.pll.in_div_min = 2;
minfo->features.pll.in_div_max = 63;
minfo->features.pll.post_shift_max = 3;
if (minfo->devflags.noinit)
return;
ti3026_setMCLK(minfo, 60000);
}
static void Ti3026_restore(struct matrox_fb_info *minfo)
{
int i;
unsigned char progdac[6];
struct matrox_hw_state *hw = &minfo->hw;
CRITFLAGS
DBG(__func__)
#ifdef DEBUG
dprintk(KERN_INFO "EXTVGA regs: ");
for (i = 0; i < 6; i++)
dprintk("%02X:", hw->CRTCEXT[i]);
dprintk("\n");
#endif
CRITBEGIN
pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, hw->MXoptionReg);
CRITEND
matroxfb_vgaHWrestore(minfo);
CRITBEGIN
minfo->crtc1.panpos = -1;
for (i = 0; i < 6; i++)
mga_setr(M_EXTVGA_INDEX, i, hw->CRTCEXT[i]);
for (i = 0; i < 21; i++) {
outTi3026(minfo, DACseq[i], hw->DACreg[i]);
}
outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
progdac[0] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
progdac[3] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);
outTi3026(minfo, TVP3026_XPLLADDR, 0x15);
progdac[1] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
progdac[4] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);
outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
progdac[2] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
progdac[5] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);
CRITEND
if (memcmp(hw->DACclk, progdac, 6)) {
/* agrhh... setting up PLL is very slow on Millennium... */
/* Mystique PLL is locked in few ms, but Millennium PLL lock takes about 0.15 s... */
/* Maybe even we should call schedule() ? */
CRITBEGIN
outTi3026(minfo, TVP3026_XCLKCTRL, hw->DACreg[POS3026_XCLKCTRL]);
outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
outTi3026(minfo, TVP3026_XLOOPPLLDATA, 0);
outTi3026(minfo, TVP3026_XPIXPLLDATA, 0);
outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
for (i = 0; i < 3; i++)
outTi3026(minfo, TVP3026_XPIXPLLDATA, hw->DACclk[i]);
/* wait for PLL only if PLL clock requested (always for PowerMode, never for VGA) */
if (hw->MiscOutReg & 0x08) {
int tmout;
outTi3026(minfo, TVP3026_XPLLADDR, 0x3F);
for (tmout = 500000; tmout; --tmout) {
if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
break;
udelay(10);
}
CRITEND
if (!tmout)
printk(KERN_ERR "matroxfb: Pixel PLL not locked after 5 secs\n");
else
dprintk(KERN_INFO "PixelPLL: %d\n", 500000-tmout);
CRITBEGIN
}
outTi3026(minfo, TVP3026_XMEMPLLCTRL, hw->DACreg[POS3026_XMEMPLLCTRL]);
outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
for (i = 3; i < 6; i++)
outTi3026(minfo, TVP3026_XLOOPPLLDATA, hw->DACclk[i]);
CRITEND
if ((hw->MiscOutReg & 0x08) && ((hw->DACclk[5] & 0x80) == 0x80)) {
int tmout;
CRITBEGIN
outTi3026(minfo, TVP3026_XPLLADDR, 0x3F);
for (tmout = 500000; tmout; --tmout) {
if (inTi3026(minfo, TVP3026_XLOOPPLLDATA) & 0x40)
break;
udelay(10);
}
CRITEND
if (!tmout)
printk(KERN_ERR "matroxfb: Loop PLL not locked after 5 secs\n");
else
dprintk(KERN_INFO "LoopPLL: %d\n", 500000-tmout);
}
}
#ifdef DEBUG
dprintk(KERN_DEBUG "3026DACregs ");
for (i = 0; i < 21; i++) {
dprintk("R%02X=%02X ", DACseq[i], hw->DACreg[i]);
if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... ");
}
dprintk(KERN_DEBUG "DACclk ");
for (i = 0; i < 6; i++)
dprintk("C%02X=%02X ", i, hw->DACclk[i]);
dprintk("\n");
#endif
}
static void Ti3026_reset(struct matrox_fb_info *minfo)
{
DBG(__func__)
ti3026_ramdac_init(minfo);
}
static struct matrox_altout ti3026_output = {
.name = "Primary output",
};
static int Ti3026_preinit(struct matrox_fb_info *minfo)
{
static const int vxres_mill2[] = { 512, 640, 768, 800, 832, 960,
1024, 1152, 1280, 1600, 1664, 1920,
2048, 0};
static const int vxres_mill1[] = { 640, 768, 800, 960,
1024, 1152, 1280, 1600, 1920,
2048, 0};
struct matrox_hw_state *hw = &minfo->hw;
DBG(__func__)
minfo->millenium = 1;
minfo->milleniumII = (minfo->pcidev->device != PCI_DEVICE_ID_MATROX_MIL);
minfo->capable.cfb4 = 1;
minfo->capable.text = 1; /* isMilleniumII(minfo); */
minfo->capable.vxres = isMilleniumII(minfo) ? vxres_mill2 : vxres_mill1;
minfo->outputs[0].data = minfo;
minfo->outputs[0].output = &ti3026_output;
minfo->outputs[0].src = minfo->outputs[0].default_src;
minfo->outputs[0].mode = MATROXFB_OUTPUT_MODE_MONITOR;
if (minfo->devflags.noinit)
return 0;
/* preserve VGA I/O, BIOS and PPC */
hw->MXoptionReg &= 0xC0000100;
hw->MXoptionReg |= 0x002C0000;
if (minfo->devflags.novga)
hw->MXoptionReg &= ~0x00000100;
if (minfo->devflags.nobios)
hw->MXoptionReg &= ~0x40000000;
if (minfo->devflags.nopciretry)
hw->MXoptionReg |= 0x20000000;
pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, hw->MXoptionReg);
minfo->accel.ramdac_rev = inTi3026(minfo, TVP3026_XSILICONREV);
outTi3026(minfo, TVP3026_XCLKCTRL, TVP3026_XCLKCTRL_SRC_CLK0VGA | TVP3026_XCLKCTRL_CLKSTOPPED);
outTi3026(minfo, TVP3026_XTRUECOLORCTRL, TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR);
outTi3026(minfo, TVP3026_XMUXCTRL, TVP3026_XMUXCTRL_VGA);
outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
outTi3026(minfo, TVP3026_XLOOPPLLDATA, 0x00);
outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);
mga_outb(M_MISC_REG, 0x67);
outTi3026(minfo, TVP3026_XMEMPLLCTRL, TVP3026_XMEMPLLCTRL_STROBEMKC4 | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL);
mga_outl(M_RESET, 1);
udelay(250);
mga_outl(M_RESET, 0);
udelay(250);
mga_outl(M_MACCESS, 0x00008000);
udelay(10);
return 0;
}
struct matrox_switch matrox_millennium = {
.preinit = Ti3026_preinit,
.reset = Ti3026_reset,
.init = Ti3026_init,
.restore = Ti3026_restore
};
EXPORT_SYMBOL(matrox_millennium);
#endif
MODULE_LICENSE("GPL");
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