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tegrakernel/kernel/kernel-4.9/drivers/video/fbdev/savage/savagefb_driver.c

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initial commit tegra kernel 32.6.1
2022-02-16 09:13:02 -06:00
/*
* linux/drivers/video/savagefb.c -- S3 Savage Framebuffer Driver
*
* Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>
* Sven Neumann <neo@directfb.org>
*
*
* Card specific code is based on XFree86's savage driver.
* Framebuffer framework code is based on code of cyber2000fb and tdfxfb.
*
* 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.
*
* 0.4.0 (neo)
* - hardware accelerated clear and move
*
* 0.3.2 (dok)
* - wait for vertical retrace before writing to cr67
* at the beginning of savagefb_set_par
* - use synchronization registers cr23 and cr26
*
* 0.3.1 (dok)
* - reset 3D engine
* - don't return alpha bits for 32bit format
*
* 0.3.0 (dok)
* - added WaitIdle functions for all Savage types
* - do WaitIdle before mode switching
* - code cleanup
*
* 0.2.0 (dok)
* - first working version
*
*
* TODO
* - clock validations in decode_var
*
* BUGS
* - white margin on bootup
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/console.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pgtable.h>
#include "savagefb.h"
#define SAVAGEFB_VERSION "0.4.0_2.6"
/* --------------------------------------------------------------------- */
static char *mode_option = NULL;
#ifdef MODULE
MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
#endif
/* --------------------------------------------------------------------- */
static void vgaHWSeqReset(struct savagefb_par *par, int start)
{
if (start)
VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
else
VGAwSEQ(0x00, 0x03, par); /* End Reset */
}
static void vgaHWProtect(struct savagefb_par *par, int on)
{
unsigned char tmp;
if (on) {
/*
* Turn off screen and disable sequencer.
*/
tmp = VGArSEQ(0x01, par);
vgaHWSeqReset(par, 1); /* start synchronous reset */
VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
VGAenablePalette(par);
} else {
/*
* Reenable sequencer, then turn on screen.
*/
tmp = VGArSEQ(0x01, par);
VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
vgaHWSeqReset(par, 0); /* clear synchronous reset */
VGAdisablePalette(par);
}
}
static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
{
int i;
VGAwMISC(reg->MiscOutReg, par);
for (i = 1; i < 5; i++)
VGAwSEQ(i, reg->Sequencer[i], par);
/* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
CRTC[17] */
VGAwCR(17, reg->CRTC[17] & ~0x80, par);
for (i = 0; i < 25; i++)
VGAwCR(i, reg->CRTC[i], par);
for (i = 0; i < 9; i++)
VGAwGR(i, reg->Graphics[i], par);
VGAenablePalette(par);
for (i = 0; i < 21; i++)
VGAwATTR(i, reg->Attribute[i], par);
VGAdisablePalette(par);
}
static void vgaHWInit(struct fb_var_screeninfo *var,
struct savagefb_par *par,
struct xtimings *timings,
struct savage_reg *reg)
{
reg->MiscOutReg = 0x23;
if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
reg->MiscOutReg |= 0x40;
if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
reg->MiscOutReg |= 0x80;
/*
* Time Sequencer
*/
reg->Sequencer[0x00] = 0x00;
reg->Sequencer[0x01] = 0x01;
reg->Sequencer[0x02] = 0x0F;
reg->Sequencer[0x03] = 0x00; /* Font select */
reg->Sequencer[0x04] = 0x0E; /* Misc */
/*
* CRTC Controller
*/
reg->CRTC[0x00] = (timings->HTotal >> 3) - 5;
reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
reg->CRTC[0x04] = (timings->HSyncStart >> 3);
reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
(((timings->HSyncEnd >> 3)) & 0x1f);
reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
(((timings->VDisplay - 1) & 0x100) >> 7) |
((timings->VSyncStart & 0x100) >> 6) |
(((timings->VSyncStart - 1) & 0x100) >> 5) |
0x10 |
(((timings->VTotal - 2) & 0x200) >> 4) |
(((timings->VDisplay - 1) & 0x200) >> 3) |
((timings->VSyncStart & 0x200) >> 2);
reg->CRTC[0x08] = 0x00;
reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
if (timings->dblscan)
reg->CRTC[0x09] |= 0x80;
reg->CRTC[0x0a] = 0x00;
reg->CRTC[0x0b] = 0x00;
reg->CRTC[0x0c] = 0x00;
reg->CRTC[0x0d] = 0x00;
reg->CRTC[0x0e] = 0x00;
reg->CRTC[0x0f] = 0x00;
reg->CRTC[0x10] = timings->VSyncStart & 0xff;
reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
reg->CRTC[0x13] = var->xres_virtual >> 4;
reg->CRTC[0x14] = 0x00;
reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
reg->CRTC[0x17] = 0xc3;
reg->CRTC[0x18] = 0xff;
/*
* are these unnecessary?
* vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
* vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
*/
/*
* Graphics Display Controller
*/
reg->Graphics[0x00] = 0x00;
reg->Graphics[0x01] = 0x00;
reg->Graphics[0x02] = 0x00;
reg->Graphics[0x03] = 0x00;
reg->Graphics[0x04] = 0x00;
reg->Graphics[0x05] = 0x40;
reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
reg->Graphics[0x07] = 0x0F;
reg->Graphics[0x08] = 0xFF;
reg->Attribute[0x00] = 0x00; /* standard colormap translation */
reg->Attribute[0x01] = 0x01;
reg->Attribute[0x02] = 0x02;
reg->Attribute[0x03] = 0x03;
reg->Attribute[0x04] = 0x04;
reg->Attribute[0x05] = 0x05;
reg->Attribute[0x06] = 0x06;
reg->Attribute[0x07] = 0x07;
reg->Attribute[0x08] = 0x08;
reg->Attribute[0x09] = 0x09;
reg->Attribute[0x0a] = 0x0A;
reg->Attribute[0x0b] = 0x0B;
reg->Attribute[0x0c] = 0x0C;
reg->Attribute[0x0d] = 0x0D;
reg->Attribute[0x0e] = 0x0E;
reg->Attribute[0x0f] = 0x0F;
reg->Attribute[0x10] = 0x41;
reg->Attribute[0x11] = 0xFF;
reg->Attribute[0x12] = 0x0F;
reg->Attribute[0x13] = 0x00;
reg->Attribute[0x14] = 0x00;
}
/* -------------------- Hardware specific routines ------------------------- */
/*
* Hardware Acceleration for SavageFB
*/
/* Wait for fifo space */
static void
savage3D_waitfifo(struct savagefb_par *par, int space)
{
int slots = MAXFIFO - space;
while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots);
}
static void
savage4_waitfifo(struct savagefb_par *par, int space)
{
int slots = MAXFIFO - space;
while ((savage_in32(0x48C60, par) & 0x001fffff) > slots);
}
static void
savage2000_waitfifo(struct savagefb_par *par, int space)
{
int slots = MAXFIFO - space;
while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots);
}
/* Wait for idle accelerator */
static void
savage3D_waitidle(struct savagefb_par *par)
{
while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000);
}
static void
savage4_waitidle(struct savagefb_par *par)
{
while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000);
}
static void
savage2000_waitidle(struct savagefb_par *par)
{
while ((savage_in32(0x48C60, par) & 0x009fffff));
}
#ifdef CONFIG_FB_SAVAGE_ACCEL
static void
SavageSetup2DEngine(struct savagefb_par *par)
{
unsigned long GlobalBitmapDescriptor;
GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
switch(par->chip) {
case S3_SAVAGE3D:
case S3_SAVAGE_MX:
/* Disable BCI */
savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
/* Setup BCI command overflow buffer */
savage_out32(0x48C14,
(par->cob_offset >> 11) | (par->cob_index << 29),
par);
/* Program shadow status update. */
savage_out32(0x48C10, 0x78207220, par);
savage_out32(0x48C0C, 0, par);
/* Enable BCI and command overflow buffer */
savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par);
break;
case S3_SAVAGE4:
case S3_TWISTER:
case S3_PROSAVAGE:
case S3_PROSAVAGEDDR:
case S3_SUPERSAVAGE:
/* Disable BCI */
savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
/* Program shadow status update */
savage_out32(0x48C10, 0x00700040, par);
savage_out32(0x48C0C, 0, par);
/* Enable BCI without the COB */
savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par);
break;
case S3_SAVAGE2000:
/* Disable BCI */
savage_out32(0x48C18, 0, par);
/* Setup BCI command overflow buffer */
savage_out32(0x48C18,
(par->cob_offset >> 7) | (par->cob_index),
par);
/* Disable shadow status update */
savage_out32(0x48A30, 0, par);
/* Enable BCI and command overflow buffer */
savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000,
par);
break;
default:
break;
}
/* Turn on 16-bit register access. */
vga_out8(0x3d4, 0x31, par);
vga_out8(0x3d5, 0x0c, par);
/* Set stride to use GBD. */
vga_out8(0x3d4, 0x50, par);
vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
/* Enable 2D engine. */
vga_out8(0x3d4, 0x40, par);
vga_out8(0x3d5, 0x01, par);
savage_out32(MONO_PAT_0, ~0, par);
savage_out32(MONO_PAT_1, ~0, par);
/* Setup plane masks */
savage_out32(0x8128, ~0, par); /* enable all write planes */
savage_out32(0x812C, ~0, par); /* enable all read planes */
savage_out16(0x8134, 0x27, par);
savage_out16(0x8136, 0x07, par);
/* Now set the GBD */
par->bci_ptr = 0;
par->SavageWaitFifo(par, 4);
BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
BCI_SEND(0);
BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
BCI_SEND(GlobalBitmapDescriptor);
/*
* I don't know why, sending this twice fixes the initial black screen,
* prevents X from crashing at least in Toshiba laptops with SavageIX.
* --Tony
*/
par->bci_ptr = 0;
par->SavageWaitFifo(par, 4);
BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
BCI_SEND(0);
BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
BCI_SEND(GlobalBitmapDescriptor);
}
static void savagefb_set_clip(struct fb_info *info)
{
struct savagefb_par *par = info->par;
int cmd;
cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
par->bci_ptr = 0;
par->SavageWaitFifo(par,3);
BCI_SEND(cmd);
BCI_SEND(BCI_CLIP_TL(0, 0));
BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
}
#else
static void SavageSetup2DEngine(struct savagefb_par *par) {}
#endif
static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
int min_n2, int max_n2, long freq_min,
long freq_max, unsigned int *mdiv,
unsigned int *ndiv, unsigned int *r)
{
long diff, best_diff;
unsigned int m;
unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2;
if (freq < freq_min / (1 << max_n2)) {
printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
freq = freq_min / (1 << max_n2);
}
if (freq > freq_max / (1 << min_n2)) {
printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
freq = freq_max / (1 << min_n2);
}
/* work out suitable timings */
best_diff = freq;
for (n2=min_n2; n2<=max_n2; n2++) {
for (n1=min_n1+2; n1<=max_n1+2; n1++) {
m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
BASE_FREQ;
if (m < min_m+2 || m > 127+2)
continue;
if ((m * BASE_FREQ >= freq_min * n1) &&
(m * BASE_FREQ <= freq_max * n1)) {
diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
if (diff < 0)
diff = -diff;
if (diff < best_diff) {
best_diff = diff;
best_m = m;
best_n1 = n1;
best_n2 = n2;
}
}
}
}
*ndiv = best_n1 - 2;
*r = best_n2;
*mdiv = best_m - 2;
}
static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
int min_n2, int max_n2, long freq_min,
long freq_max, unsigned char *mdiv,
unsigned char *ndiv)
{
long diff, best_diff;
unsigned int m;
unsigned char n1, n2;
unsigned char best_n1 = 16+2, best_n2 = 2, best_m = 125+2;
best_diff = freq;
for (n2 = min_n2; n2 <= max_n2; n2++) {
for (n1 = min_n1+2; n1 <= max_n1+2; n1++) {
m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
BASE_FREQ;
if (m < min_m + 2 || m > 127+2)
continue;
if ((m * BASE_FREQ >= freq_min * n1) &&
(m * BASE_FREQ <= freq_max * n1)) {
diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
if (diff < 0)
diff = -diff;
if (diff < best_diff) {
best_diff = diff;
best_m = m;
best_n1 = n1;
best_n2 = n2;
}
}
}
}
if (max_n1 == 63)
*ndiv = (best_n1 - 2) | (best_n2 << 6);
else
*ndiv = (best_n1 - 2) | (best_n2 << 5);
*mdiv = best_m - 2;
return 0;
}
#ifdef SAVAGEFB_DEBUG
/* This function is used to debug, it prints out the contents of s3 regs */
static void SavagePrintRegs(struct savagefb_par *par)
{
unsigned char i;
int vgaCRIndex = 0x3d4;
int vgaCRReg = 0x3d5;
printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
"xF");
for (i = 0; i < 0x70; i++) {
if (!(i % 16))
printk(KERN_DEBUG "\nSR%xx ", i >> 4);
vga_out8(0x3c4, i, par);
printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
}
printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
"xD xE xF");
for (i = 0; i < 0xB7; i++) {
if (!(i % 16))
printk(KERN_DEBUG "\nCR%xx ", i >> 4);
vga_out8(vgaCRIndex, i, par);
printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
}
printk(KERN_DEBUG "\n\n");
}
#endif
/* --------------------------------------------------------------------- */
static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
{
unsigned char cr3a, cr53, cr66;
vga_out16(0x3d4, 0x4838, par);
vga_out16(0x3d4, 0xa039, par);
vga_out16(0x3c4, 0x0608, par);
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x80, par);
vga_out8(0x3d4, 0x3a, par);
cr3a = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3a | 0x80, par);
vga_out8(0x3d4, 0x53, par);
cr53 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr53 & 0x7f, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
/* unlock extended seq regs */
vga_out8(0x3c4, 0x08, par);
reg->SR08 = vga_in8(0x3c5, par);
vga_out8(0x3c5, 0x06, par);
/* now save all the extended regs we need */
vga_out8(0x3d4, 0x31, par);
reg->CR31 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x32, par);
reg->CR32 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x34, par);
reg->CR34 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x36, par);
reg->CR36 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x3a, par);
reg->CR3A = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x40, par);
reg->CR40 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x42, par);
reg->CR42 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x45, par);
reg->CR45 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x50, par);
reg->CR50 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x51, par);
reg->CR51 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x53, par);
reg->CR53 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x58, par);
reg->CR58 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x60, par);
reg->CR60 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x66, par);
reg->CR66 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x67, par);
reg->CR67 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x68, par);
reg->CR68 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x69, par);
reg->CR69 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x6f, par);
reg->CR6F = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x33, par);
reg->CR33 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x86, par);
reg->CR86 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x88, par);
reg->CR88 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x90, par);
reg->CR90 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x91, par);
reg->CR91 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0xb0, par);
reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
/* extended mode timing regs */
vga_out8(0x3d4, 0x3b, par);
reg->CR3B = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x3c, par);
reg->CR3C = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x43, par);
reg->CR43 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x5d, par);
reg->CR5D = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x5e, par);
reg->CR5E = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x65, par);
reg->CR65 = vga_in8(0x3d5, par);
/* save seq extended regs for DCLK PLL programming */
vga_out8(0x3c4, 0x0e, par);
reg->SR0E = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x0f, par);
reg->SR0F = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x10, par);
reg->SR10 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x11, par);
reg->SR11 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x12, par);
reg->SR12 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x13, par);
reg->SR13 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x29, par);
reg->SR29 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x15, par);
reg->SR15 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x30, par);
reg->SR30 = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x18, par);
reg->SR18 = vga_in8(0x3c5, par);
/* Save flat panel expansion registers. */
if (par->chip == S3_SAVAGE_MX) {
int i;
for (i = 0; i < 8; i++) {
vga_out8(0x3c4, 0x54+i, par);
reg->SR54[i] = vga_in8(0x3c5, par);
}
}
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x80, par);
vga_out8(0x3d4, 0x3a, par);
cr3a = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3a | 0x80, par);
/* now save MIU regs */
if (par->chip != S3_SAVAGE_MX) {
reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
}
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
}
static void savage_set_default_par(struct savagefb_par *par,
struct savage_reg *reg)
{
unsigned char cr3a, cr53, cr66;
vga_out16(0x3d4, 0x4838, par);
vga_out16(0x3d4, 0xa039, par);
vga_out16(0x3c4, 0x0608, par);
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x80, par);
vga_out8(0x3d4, 0x3a, par);
cr3a = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3a | 0x80, par);
vga_out8(0x3d4, 0x53, par);
cr53 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr53 & 0x7f, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
/* unlock extended seq regs */
vga_out8(0x3c4, 0x08, par);
vga_out8(0x3c5, reg->SR08, par);
vga_out8(0x3c5, 0x06, par);
/* now restore all the extended regs we need */
vga_out8(0x3d4, 0x31, par);
vga_out8(0x3d5, reg->CR31, par);
vga_out8(0x3d4, 0x32, par);
vga_out8(0x3d5, reg->CR32, par);
vga_out8(0x3d4, 0x34, par);
vga_out8(0x3d5, reg->CR34, par);
vga_out8(0x3d4, 0x36, par);
vga_out8(0x3d5,reg->CR36, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, reg->CR3A, par);
vga_out8(0x3d4, 0x40, par);
vga_out8(0x3d5, reg->CR40, par);
vga_out8(0x3d4, 0x42, par);
vga_out8(0x3d5, reg->CR42, par);
vga_out8(0x3d4, 0x45, par);
vga_out8(0x3d5, reg->CR45, par);
vga_out8(0x3d4, 0x50, par);
vga_out8(0x3d5, reg->CR50, par);
vga_out8(0x3d4, 0x51, par);
vga_out8(0x3d5, reg->CR51, par);
vga_out8(0x3d4, 0x53, par);
vga_out8(0x3d5, reg->CR53, par);
vga_out8(0x3d4, 0x58, par);
vga_out8(0x3d5, reg->CR58, par);
vga_out8(0x3d4, 0x60, par);
vga_out8(0x3d5, reg->CR60, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, reg->CR66, par);
vga_out8(0x3d4, 0x67, par);
vga_out8(0x3d5, reg->CR67, par);
vga_out8(0x3d4, 0x68, par);
vga_out8(0x3d5, reg->CR68, par);
vga_out8(0x3d4, 0x69, par);
vga_out8(0x3d5, reg->CR69, par);
vga_out8(0x3d4, 0x6f, par);
vga_out8(0x3d5, reg->CR6F, par);
vga_out8(0x3d4, 0x33, par);
vga_out8(0x3d5, reg->CR33, par);
vga_out8(0x3d4, 0x86, par);
vga_out8(0x3d5, reg->CR86, par);
vga_out8(0x3d4, 0x88, par);
vga_out8(0x3d5, reg->CR88, par);
vga_out8(0x3d4, 0x90, par);
vga_out8(0x3d5, reg->CR90, par);
vga_out8(0x3d4, 0x91, par);
vga_out8(0x3d5, reg->CR91, par);
vga_out8(0x3d4, 0xb0, par);
vga_out8(0x3d5, reg->CRB0, par);
/* extended mode timing regs */
vga_out8(0x3d4, 0x3b, par);
vga_out8(0x3d5, reg->CR3B, par);
vga_out8(0x3d4, 0x3c, par);
vga_out8(0x3d5, reg->CR3C, par);
vga_out8(0x3d4, 0x43, par);
vga_out8(0x3d5, reg->CR43, par);
vga_out8(0x3d4, 0x5d, par);
vga_out8(0x3d5, reg->CR5D, par);
vga_out8(0x3d4, 0x5e, par);
vga_out8(0x3d5, reg->CR5E, par);
vga_out8(0x3d4, 0x65, par);
vga_out8(0x3d5, reg->CR65, par);
/* save seq extended regs for DCLK PLL programming */
vga_out8(0x3c4, 0x0e, par);
vga_out8(0x3c5, reg->SR0E, par);
vga_out8(0x3c4, 0x0f, par);
vga_out8(0x3c5, reg->SR0F, par);
vga_out8(0x3c4, 0x10, par);
vga_out8(0x3c5, reg->SR10, par);
vga_out8(0x3c4, 0x11, par);
vga_out8(0x3c5, reg->SR11, par);
vga_out8(0x3c4, 0x12, par);
vga_out8(0x3c5, reg->SR12, par);
vga_out8(0x3c4, 0x13, par);
vga_out8(0x3c5, reg->SR13, par);
vga_out8(0x3c4, 0x29, par);
vga_out8(0x3c5, reg->SR29, par);
vga_out8(0x3c4, 0x15, par);
vga_out8(0x3c5, reg->SR15, par);
vga_out8(0x3c4, 0x30, par);
vga_out8(0x3c5, reg->SR30, par);
vga_out8(0x3c4, 0x18, par);
vga_out8(0x3c5, reg->SR18, par);
/* Save flat panel expansion registers. */
if (par->chip == S3_SAVAGE_MX) {
int i;
for (i = 0; i < 8; i++) {
vga_out8(0x3c4, 0x54+i, par);
vga_out8(0x3c5, reg->SR54[i], par);
}
}
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x80, par);
vga_out8(0x3d4, 0x3a, par);
cr3a = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3a | 0x80, par);
/* now save MIU regs */
if (par->chip != S3_SAVAGE_MX) {
savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
}
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
}
static void savage_update_var(struct fb_var_screeninfo *var,
const struct fb_videomode *modedb)
{
var->xres = var->xres_virtual = modedb->xres;
var->yres = modedb->yres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
var->xoffset = var->yoffset = 0;
var->pixclock = modedb->pixclock;
var->left_margin = modedb->left_margin;
var->right_margin = modedb->right_margin;
var->upper_margin = modedb->upper_margin;
var->lower_margin = modedb->lower_margin;
var->hsync_len = modedb->hsync_len;
var->vsync_len = modedb->vsync_len;
var->sync = modedb->sync;
var->vmode = modedb->vmode;
}
static int savagefb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct savagefb_par *par = info->par;
int memlen, vramlen, mode_valid = 0;
DBG("savagefb_check_var");
var->transp.offset = 0;
var->transp.length = 0;
switch (var->bits_per_pixel) {
case 8:
var->red.offset = var->green.offset =
var->blue.offset = 0;
var->red.length = var->green.length =
var->blue.length = var->bits_per_pixel;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
break;
case 32:
var->transp.offset = 24;
var->transp.length = 8;
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
break;
default:
return -EINVAL;
}
if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
!info->monspecs.dclkmax || !fb_validate_mode(var, info))
mode_valid = 1;
/* calculate modeline if supported by monitor */
if (!mode_valid && info->monspecs.gtf) {
if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
mode_valid = 1;
}
if (!mode_valid) {
const struct fb_videomode *mode;
mode = fb_find_best_mode(var, &info->modelist);
if (mode) {
savage_update_var(var, mode);
mode_valid = 1;
}
}
if (!mode_valid && info->monspecs.modedb_len)
return -EINVAL;
/* Is the mode larger than the LCD panel? */
if (par->SavagePanelWidth &&
(var->xres > par->SavagePanelWidth ||
var->yres > par->SavagePanelHeight)) {
printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel "
"(%dx%d)\n", var->xres, var->yres,
par->SavagePanelWidth,
par->SavagePanelHeight);
return -1;
}
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
vramlen = info->fix.smem_len;
memlen = var->xres_virtual * var->bits_per_pixel *
var->yres_virtual / 8;
if (memlen > vramlen) {
var->yres_virtual = vramlen * 8 /
(var->xres_virtual * var->bits_per_pixel);
memlen = var->xres_virtual * var->bits_per_pixel *
var->yres_virtual / 8;
}
/* we must round yres/xres down, we already rounded y/xres_virtual up
if it was possible. We should return -EINVAL, but I disagree */
if (var->yres_virtual < var->yres)
var->yres = var->yres_virtual;
if (var->xres_virtual < var->xres)
var->xres = var->xres_virtual;
if (var->xoffset + var->xres > var->xres_virtual)
var->xoffset = var->xres_virtual - var->xres;
if (var->yoffset + var->yres > var->yres_virtual)
var->yoffset = var->yres_virtual - var->yres;
return 0;
}
static int savagefb_decode_var(struct fb_var_screeninfo *var,
struct savagefb_par *par,
struct savage_reg *reg)
{
struct xtimings timings;
int width, dclk, i, j; /*, refresh; */
unsigned int m, n, r;
unsigned char tmp = 0;
unsigned int pixclock = var->pixclock;
DBG("savagefb_decode_var");
memset(&timings, 0, sizeof(timings));
if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */
timings.Clock = 1000000000 / pixclock;
if (timings.Clock < 1) timings.Clock = 1;
timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
timings.HDisplay = var->xres;
timings.HSyncStart = timings.HDisplay + var->right_margin;
timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
timings.HTotal = timings.HSyncEnd + var->left_margin;
timings.VDisplay = var->yres;
timings.VSyncStart = timings.VDisplay + var->lower_margin;
timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
timings.VTotal = timings.VSyncEnd + var->upper_margin;
timings.sync = var->sync;
par->depth = var->bits_per_pixel;
par->vwidth = var->xres_virtual;
if (var->bits_per_pixel == 16 && par->chip == S3_SAVAGE3D) {
timings.HDisplay *= 2;
timings.HSyncStart *= 2;
timings.HSyncEnd *= 2;
timings.HTotal *= 2;
}
/*
* This will allocate the datastructure and initialize all of the
* generic VGA registers.
*/
vgaHWInit(var, par, &timings, reg);
/* We need to set CR67 whether or not we use the BIOS. */
dclk = timings.Clock;
reg->CR67 = 0x00;
switch(var->bits_per_pixel) {
case 8:
if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
else
reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
break;
case 15:
if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
else
reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
break;
case 16:
if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
else
reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
break;
case 24:
reg->CR67 = 0x70;
break;
case 32:
reg->CR67 = 0xd0;
break;
}
/*
* Either BIOS use is disabled, or we failed to find a suitable
* match. Fall back to traditional register-crunching.
*/
vga_out8(0x3d4, 0x3a, par);
tmp = vga_in8(0x3d5, par);
if (1 /*FIXME:psav->pci_burst*/)
reg->CR3A = (tmp & 0x7f) | 0x15;
else
reg->CR3A = tmp | 0x95;
reg->CR53 = 0x00;
reg->CR31 = 0x8c;
reg->CR66 = 0x89;
vga_out8(0x3d4, 0x58, par);
reg->CR58 = vga_in8(0x3d5, par) & 0x80;
reg->CR58 |= 0x13;
reg->SR15 = 0x03 | 0x80;
reg->SR18 = 0x00;
reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
vga_out8(0x3d4, 0x40, par);
reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
reg->MMPR0 = 0x010400;
reg->MMPR1 = 0x00;
reg->MMPR2 = 0x0808;
reg->MMPR3 = 0x08080810;
SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
/* m = 107; n = 4; r = 2; */
if (par->MCLK <= 0) {
reg->SR10 = 255;
reg->SR11 = 255;
} else {
common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
&reg->SR11, &reg->SR10);
/* reg->SR10 = 80; // MCLK == 286000 */
/* reg->SR11 = 125; */
}
reg->SR12 = (r << 6) | (n & 0x3f);
reg->SR13 = m & 0xff;
reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
if (var->bits_per_pixel < 24)
reg->MMPR0 -= 0x8000;
else
reg->MMPR0 -= 0x4000;
if (timings.interlaced)
reg->CR42 = 0x20;
else
reg->CR42 = 0x00;
reg->CR34 = 0x10; /* display fifo */
i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) |
((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) |
((((timings.HSyncStart >> 3) - 1) & 0x100) >> 6) |
((timings.HSyncStart & 0x800) >> 7);
if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 64)
i |= 0x08;
if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32)
i |= 0x20;
j = (reg->CRTC[0] + ((i & 0x01) << 8) +
reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) {
if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <=
reg->CRTC[0] + ((i & 0x01) << 8))
j = reg->CRTC[4] + ((i & 0x10) << 4) + 4;
else
j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
}
reg->CR3B = j & 0xff;
i |= (j & 0x100) >> 2;
reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
reg->CR5D = i;
reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
(((timings.VDisplay - 1) & 0x400) >> 9) |
(((timings.VSyncStart) & 0x400) >> 8) |
(((timings.VSyncStart) & 0x400) >> 6) | 0x40;
width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3;
reg->CR91 = reg->CRTC[19] = 0xff & width;
reg->CR51 = (0x300 & width) >> 4;
reg->CR90 = 0x80 | (width >> 8);
reg->MiscOutReg |= 0x0c;
/* Set frame buffer description. */
if (var->bits_per_pixel <= 8)
reg->CR50 = 0;
else if (var->bits_per_pixel <= 16)
reg->CR50 = 0x10;
else
reg->CR50 = 0x30;
if (var->xres_virtual <= 640)
reg->CR50 |= 0x40;
else if (var->xres_virtual == 800)
reg->CR50 |= 0x80;
else if (var->xres_virtual == 1024)
reg->CR50 |= 0x00;
else if (var->xres_virtual == 1152)
reg->CR50 |= 0x01;
else if (var->xres_virtual == 1280)
reg->CR50 |= 0xc0;
else if (var->xres_virtual == 1600)
reg->CR50 |= 0x81;
else
reg->CR50 |= 0xc1; /* Use GBD */
if (par->chip == S3_SAVAGE2000)
reg->CR33 = 0x08;
else
reg->CR33 = 0x20;
reg->CRTC[0x17] = 0xeb;
reg->CR67 |= 1;
vga_out8(0x3d4, 0x36, par);
reg->CR36 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x68, par);
reg->CR68 = vga_in8(0x3d5, par);
reg->CR69 = 0;
vga_out8(0x3d4, 0x6f, par);
reg->CR6F = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x86, par);
reg->CR86 = vga_in8(0x3d5, par);
vga_out8(0x3d4, 0x88, par);
reg->CR88 = vga_in8(0x3d5, par) | 0x08;
vga_out8(0x3d4, 0xb0, par);
reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
return 0;
}
/* --------------------------------------------------------------------- */
/*
* Set a single color register. Return != 0 for invalid regno.
*/
static int savagefb_setcolreg(unsigned regno,
unsigned red,
unsigned green,
unsigned blue,
unsigned transp,
struct fb_info *info)
{
struct savagefb_par *par = info->par;
if (regno >= NR_PALETTE)
return -EINVAL;
par->palette[regno].red = red;
par->palette[regno].green = green;
par->palette[regno].blue = blue;
par->palette[regno].transp = transp;
switch (info->var.bits_per_pixel) {
case 8:
vga_out8(0x3c8, regno, par);
vga_out8(0x3c9, red >> 10, par);
vga_out8(0x3c9, green >> 10, par);
vga_out8(0x3c9, blue >> 10, par);
break;
case 16:
if (regno < 16)
((u32 *)info->pseudo_palette)[regno] =
((red & 0xf800) ) |
((green & 0xfc00) >> 5) |
((blue & 0xf800) >> 11);
break;
case 24:
if (regno < 16)
((u32 *)info->pseudo_palette)[regno] =
((red & 0xff00) << 8) |
((green & 0xff00) ) |
((blue & 0xff00) >> 8);
break;
case 32:
if (regno < 16)
((u32 *)info->pseudo_palette)[regno] =
((transp & 0xff00) << 16) |
((red & 0xff00) << 8) |
((green & 0xff00) ) |
((blue & 0xff00) >> 8);
break;
default:
return 1;
}
return 0;
}
static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
{
unsigned char tmp, cr3a, cr66, cr67;
DBG("savagefb_set_par_int");
par->SavageWaitIdle(par);
vga_out8(0x3c2, 0x23, par);
vga_out16(0x3d4, 0x4838, par);
vga_out16(0x3d4, 0xa539, par);
vga_out16(0x3c4, 0x0608, par);
vgaHWProtect(par, 1);
/*
* Some Savage/MX and /IX systems go nuts when trying to exit the
* server after WindowMaker has displayed a gradient background. I
* haven't been able to find what causes it, but a non-destructive
* switch to mode 3 here seems to eliminate the issue.
*/
VerticalRetraceWait(par);
vga_out8(0x3d4, 0x67, par);
cr67 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
vga_out8(0x3d4, 0x23, par);
vga_out8(0x3d5, 0x00, par);
vga_out8(0x3d4, 0x26, par);
vga_out8(0x3d5, 0x00, par);
/* restore extended regs */
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, reg->CR66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, reg->CR3A, par);
vga_out8(0x3d4, 0x31, par);
vga_out8(0x3d5, reg->CR31, par);
vga_out8(0x3d4, 0x32, par);
vga_out8(0x3d5, reg->CR32, par);
vga_out8(0x3d4, 0x58, par);
vga_out8(0x3d5, reg->CR58, par);
vga_out8(0x3d4, 0x53, par);
vga_out8(0x3d5, reg->CR53 & 0x7f, par);
vga_out16(0x3c4, 0x0608, par);
/* Restore DCLK registers. */
vga_out8(0x3c4, 0x0e, par);
vga_out8(0x3c5, reg->SR0E, par);
vga_out8(0x3c4, 0x0f, par);
vga_out8(0x3c5, reg->SR0F, par);
vga_out8(0x3c4, 0x29, par);
vga_out8(0x3c5, reg->SR29, par);
vga_out8(0x3c4, 0x15, par);
vga_out8(0x3c5, reg->SR15, par);
/* Restore flat panel expansion registers. */
if (par->chip == S3_SAVAGE_MX) {
int i;
for (i = 0; i < 8; i++) {
vga_out8(0x3c4, 0x54+i, par);
vga_out8(0x3c5, reg->SR54[i], par);
}
}
vgaHWRestore (par, reg);
/* extended mode timing registers */
vga_out8(0x3d4, 0x53, par);
vga_out8(0x3d5, reg->CR53, par);
vga_out8(0x3d4, 0x5d, par);
vga_out8(0x3d5, reg->CR5D, par);
vga_out8(0x3d4, 0x5e, par);
vga_out8(0x3d5, reg->CR5E, par);
vga_out8(0x3d4, 0x3b, par);
vga_out8(0x3d5, reg->CR3B, par);
vga_out8(0x3d4, 0x3c, par);
vga_out8(0x3d5, reg->CR3C, par);
vga_out8(0x3d4, 0x43, par);
vga_out8(0x3d5, reg->CR43, par);
vga_out8(0x3d4, 0x65, par);
vga_out8(0x3d5, reg->CR65, par);
/* restore the desired video mode with cr67 */
vga_out8(0x3d4, 0x67, par);
/* following part not present in X11 driver */
cr67 = vga_in8(0x3d5, par) & 0xf;
vga_out8(0x3d5, 0x50 | cr67, par);
mdelay(10);
vga_out8(0x3d4, 0x67, par);
/* end of part */
vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
/* other mode timing and extended regs */
vga_out8(0x3d4, 0x34, par);
vga_out8(0x3d5, reg->CR34, par);
vga_out8(0x3d4, 0x40, par);
vga_out8(0x3d5, reg->CR40, par);
vga_out8(0x3d4, 0x42, par);
vga_out8(0x3d5, reg->CR42, par);
vga_out8(0x3d4, 0x45, par);
vga_out8(0x3d5, reg->CR45, par);
vga_out8(0x3d4, 0x50, par);
vga_out8(0x3d5, reg->CR50, par);
vga_out8(0x3d4, 0x51, par);
vga_out8(0x3d5, reg->CR51, par);
/* memory timings */
vga_out8(0x3d4, 0x36, par);
vga_out8(0x3d5, reg->CR36, par);
vga_out8(0x3d4, 0x60, par);
vga_out8(0x3d5, reg->CR60, par);
vga_out8(0x3d4, 0x68, par);
vga_out8(0x3d5, reg->CR68, par);
vga_out8(0x3d4, 0x69, par);
vga_out8(0x3d5, reg->CR69, par);
vga_out8(0x3d4, 0x6f, par);
vga_out8(0x3d5, reg->CR6F, par);
vga_out8(0x3d4, 0x33, par);
vga_out8(0x3d5, reg->CR33, par);
vga_out8(0x3d4, 0x86, par);
vga_out8(0x3d5, reg->CR86, par);
vga_out8(0x3d4, 0x88, par);
vga_out8(0x3d5, reg->CR88, par);
vga_out8(0x3d4, 0x90, par);
vga_out8(0x3d5, reg->CR90, par);
vga_out8(0x3d4, 0x91, par);
vga_out8(0x3d5, reg->CR91, par);
if (par->chip == S3_SAVAGE4) {
vga_out8(0x3d4, 0xb0, par);
vga_out8(0x3d5, reg->CRB0, par);
}
vga_out8(0x3d4, 0x32, par);
vga_out8(0x3d5, reg->CR32, par);
/* unlock extended seq regs */
vga_out8(0x3c4, 0x08, par);
vga_out8(0x3c5, 0x06, par);
/* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
* that we should leave the default SR10 and SR11 values there.
*/
if (reg->SR10 != 255) {
vga_out8(0x3c4, 0x10, par);
vga_out8(0x3c5, reg->SR10, par);
vga_out8(0x3c4, 0x11, par);
vga_out8(0x3c5, reg->SR11, par);
}
/* restore extended seq regs for dclk */
vga_out8(0x3c4, 0x0e, par);
vga_out8(0x3c5, reg->SR0E, par);
vga_out8(0x3c4, 0x0f, par);
vga_out8(0x3c5, reg->SR0F, par);
vga_out8(0x3c4, 0x12, par);
vga_out8(0x3c5, reg->SR12, par);
vga_out8(0x3c4, 0x13, par);
vga_out8(0x3c5, reg->SR13, par);
vga_out8(0x3c4, 0x29, par);
vga_out8(0x3c5, reg->SR29, par);
vga_out8(0x3c4, 0x18, par);
vga_out8(0x3c5, reg->SR18, par);
/* load new m, n pll values for dclk & mclk */
vga_out8(0x3c4, 0x15, par);
tmp = vga_in8(0x3c5, par) & ~0x21;
vga_out8(0x3c5, tmp | 0x03, par);
vga_out8(0x3c5, tmp | 0x23, par);
vga_out8(0x3c5, tmp | 0x03, par);
vga_out8(0x3c5, reg->SR15, par);
udelay(100);
vga_out8(0x3c4, 0x30, par);
vga_out8(0x3c5, reg->SR30, par);
vga_out8(0x3c4, 0x08, par);
vga_out8(0x3c5, reg->SR08, par);
/* now write out cr67 in full, possibly starting STREAMS */
VerticalRetraceWait(par);
vga_out8(0x3d4, 0x67, par);
vga_out8(0x3d5, reg->CR67, par);
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x80, par);
vga_out8(0x3d4, 0x3a, par);
cr3a = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3a | 0x80, par);
if (par->chip != S3_SAVAGE_MX) {
VerticalRetraceWait(par);
savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
par->SavageWaitIdle(par);
savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
par->SavageWaitIdle(par);
savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
par->SavageWaitIdle(par);
savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
}
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66, par);
vga_out8(0x3d4, 0x3a, par);
vga_out8(0x3d5, cr3a, par);
SavageSetup2DEngine(par);
vgaHWProtect(par, 0);
}
static void savagefb_update_start(struct savagefb_par *par, int base)
{
/* program the start address registers */
vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
vga_out8(0x3d4, 0x69, par);
vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
}
static void savagefb_set_fix(struct fb_info *info)
{
info->fix.line_length = info->var.xres_virtual *
info->var.bits_per_pixel / 8;
if (info->var.bits_per_pixel == 8) {
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
info->fix.xpanstep = 4;
} else {
info->fix.visual = FB_VISUAL_TRUECOLOR;
info->fix.xpanstep = 2;
}
}
static int savagefb_set_par(struct fb_info *info)
{
struct savagefb_par *par = info->par;
struct fb_var_screeninfo *var = &info->var;
int err;
DBG("savagefb_set_par");
err = savagefb_decode_var(var, par, &par->state);
if (err)
return err;
if (par->dacSpeedBpp <= 0) {
if (var->bits_per_pixel > 24)
par->dacSpeedBpp = par->clock[3];
else if (var->bits_per_pixel >= 24)
par->dacSpeedBpp = par->clock[2];
else if ((var->bits_per_pixel > 8) && (var->bits_per_pixel < 24))
par->dacSpeedBpp = par->clock[1];
else if (var->bits_per_pixel <= 8)
par->dacSpeedBpp = par->clock[0];
}
/* Set ramdac limits */
par->maxClock = par->dacSpeedBpp;
par->minClock = 10000;
savagefb_set_par_int(par, &par->state);
fb_set_cmap(&info->cmap, info);
savagefb_set_fix(info);
savagefb_set_clip(info);
SavagePrintRegs(par);
return 0;
}
/*
* Pan or Wrap the Display
*/
static int savagefb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct savagefb_par *par = info->par;
int base;
base = (var->yoffset * info->fix.line_length
+ (var->xoffset & ~1) * ((info->var.bits_per_pixel+7) / 8)) >> 2;
savagefb_update_start(par, base);
return 0;
}
static int savagefb_blank(int blank, struct fb_info *info)
{
struct savagefb_par *par = info->par;
u8 sr8 = 0, srd = 0;
if (par->display_type == DISP_CRT) {
vga_out8(0x3c4, 0x08, par);
sr8 = vga_in8(0x3c5, par);
sr8 |= 0x06;
vga_out8(0x3c5, sr8, par);
vga_out8(0x3c4, 0x0d, par);
srd = vga_in8(0x3c5, par);
srd &= 0x50;
switch (blank) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
break;
case FB_BLANK_VSYNC_SUSPEND:
srd |= 0x10;
break;
case FB_BLANK_HSYNC_SUSPEND:
srd |= 0x40;
break;
case FB_BLANK_POWERDOWN:
srd |= 0x50;
break;
}
vga_out8(0x3c4, 0x0d, par);
vga_out8(0x3c5, srd, par);
}
if (par->display_type == DISP_LCD ||
par->display_type == DISP_DFP) {
switch(blank) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par);
break;
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
case FB_BLANK_POWERDOWN:
vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par);
break;
}
}
return (blank == FB_BLANK_NORMAL) ? 1 : 0;
}
static int savagefb_open(struct fb_info *info, int user)
{
struct savagefb_par *par = info->par;
mutex_lock(&par->open_lock);
if (!par->open_count) {
memset(&par->vgastate, 0, sizeof(par->vgastate));
par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS |
VGA_SAVE_MODE;
par->vgastate.vgabase = par->mmio.vbase + 0x8000;
save_vga(&par->vgastate);
savage_get_default_par(par, &par->initial);
}
par->open_count++;
mutex_unlock(&par->open_lock);
return 0;
}
static int savagefb_release(struct fb_info *info, int user)
{
struct savagefb_par *par = info->par;
mutex_lock(&par->open_lock);
if (par->open_count == 1) {
savage_set_default_par(par, &par->initial);
restore_vga(&par->vgastate);
}
par->open_count--;
mutex_unlock(&par->open_lock);
return 0;
}
static struct fb_ops savagefb_ops = {
.owner = THIS_MODULE,
.fb_open = savagefb_open,
.fb_release = savagefb_release,
.fb_check_var = savagefb_check_var,
.fb_set_par = savagefb_set_par,
.fb_setcolreg = savagefb_setcolreg,
.fb_pan_display = savagefb_pan_display,
.fb_blank = savagefb_blank,
#if defined(CONFIG_FB_SAVAGE_ACCEL)
.fb_fillrect = savagefb_fillrect,
.fb_copyarea = savagefb_copyarea,
.fb_imageblit = savagefb_imageblit,
.fb_sync = savagefb_sync,
#else
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
#endif
};
/* --------------------------------------------------------------------- */
static const struct fb_var_screeninfo savagefb_var800x600x8 = {
.accel_flags = FB_ACCELF_TEXT,
.xres = 800,
.yres = 600,
.xres_virtual = 800,
.yres_virtual = 600,
.bits_per_pixel = 8,
.pixclock = 25000,
.left_margin = 88,
.right_margin = 40,
.upper_margin = 23,
.lower_margin = 1,
.hsync_len = 128,
.vsync_len = 4,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.vmode = FB_VMODE_NONINTERLACED
};
static void savage_enable_mmio(struct savagefb_par *par)
{
unsigned char val;
DBG("savage_enable_mmio\n");
val = vga_in8(0x3c3, par);
vga_out8(0x3c3, val | 0x01, par);
val = vga_in8(0x3cc, par);
vga_out8(0x3c2, val | 0x01, par);
if (par->chip >= S3_SAVAGE4) {
vga_out8(0x3d4, 0x40, par);
val = vga_in8(0x3d5, par);
vga_out8(0x3d5, val | 1, par);
}
}
static void savage_disable_mmio(struct savagefb_par *par)
{
unsigned char val;
DBG("savage_disable_mmio\n");
if (par->chip >= S3_SAVAGE4) {
vga_out8(0x3d4, 0x40, par);
val = vga_in8(0x3d5, par);
vga_out8(0x3d5, val | 1, par);
}
}
static int savage_map_mmio(struct fb_info *info)
{
struct savagefb_par *par = info->par;
DBG("savage_map_mmio");
if (S3_SAVAGE3D_SERIES(par->chip))
par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
SAVAGE_NEWMMIO_REGBASE_S3;
else
par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
SAVAGE_NEWMMIO_REGBASE_S4;
par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
if (!par->mmio.vbase) {
printk("savagefb: unable to map memory mapped IO\n");
return -ENOMEM;
} else
printk(KERN_INFO "savagefb: mapped io at %p\n",
par->mmio.vbase);
info->fix.mmio_start = par->mmio.pbase;
info->fix.mmio_len = par->mmio.len;
par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
par->bci_ptr = 0;
savage_enable_mmio(par);
return 0;
}
static void savage_unmap_mmio(struct fb_info *info)
{
struct savagefb_par *par = info->par;
DBG("savage_unmap_mmio");
savage_disable_mmio(par);
if (par->mmio.vbase) {
iounmap(par->mmio.vbase);
par->mmio.vbase = NULL;
}
}
static int savage_map_video(struct fb_info *info, int video_len)
{
struct savagefb_par *par = info->par;
int resource;
DBG("savage_map_video");
if (S3_SAVAGE3D_SERIES(par->chip))
resource = 0;
else
resource = 1;
par->video.pbase = pci_resource_start(par->pcidev, resource);
par->video.len = video_len;
par->video.vbase = ioremap_wc(par->video.pbase, par->video.len);
if (!par->video.vbase) {
printk("savagefb: unable to map screen memory\n");
return -ENOMEM;
} else
printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
"pbase == %x\n", par->video.vbase, par->video.pbase);
info->fix.smem_start = par->video.pbase;
info->fix.smem_len = par->video.len - par->cob_size;
info->screen_base = par->video.vbase;
par->video.wc_cookie = arch_phys_wc_add(par->video.pbase, video_len);
/* Clear framebuffer, it's all white in memory after boot */
memset_io(par->video.vbase, 0, par->video.len);
return 0;
}
static void savage_unmap_video(struct fb_info *info)
{
struct savagefb_par *par = info->par;
DBG("savage_unmap_video");
if (par->video.vbase) {
arch_phys_wc_del(par->video.wc_cookie);
iounmap(par->video.vbase);
par->video.vbase = NULL;
info->screen_base = NULL;
}
}
static int savage_init_hw(struct savagefb_par *par)
{
unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
static unsigned char RamSavage3D[] = { 8, 4, 4, 2 };
static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
int videoRam, videoRambytes, dvi;
DBG("savage_init_hw");
/* unprotect CRTC[0-7] */
vga_out8(0x3d4, 0x11, par);
tmp = vga_in8(0x3d5, par);
vga_out8(0x3d5, tmp & 0x7f, par);
/* unlock extended regs */
vga_out16(0x3d4, 0x4838, par);
vga_out16(0x3d4, 0xa039, par);
vga_out16(0x3c4, 0x0608, par);
vga_out8(0x3d4, 0x40, par);
tmp = vga_in8(0x3d5, par);
vga_out8(0x3d5, tmp & ~0x01, par);
/* unlock sys regs */
vga_out8(0x3d4, 0x38, par);
vga_out8(0x3d5, 0x48, par);
/* Unlock system registers. */
vga_out16(0x3d4, 0x4838, par);
/* Next go on to detect amount of installed ram */
vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */
config1 = vga_in8(0x3d5, par); /* get amount of vram installed */
/* Compute the amount of video memory and offscreen memory. */
switch (par->chip) {
case S3_SAVAGE3D:
videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
break;
case S3_SAVAGE4:
/*
* The Savage4 has one ugly special case to consider. On
* systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB
* when it really means 8MB. Why do it the same when you
* can do it different...
*/
vga_out8(0x3d4, 0x68, par); /* memory control 1 */
if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
RamSavage4[1] = 8;
/*FALLTHROUGH*/
case S3_SAVAGE2000:
videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
break;
case S3_SAVAGE_MX:
case S3_SUPERSAVAGE:
videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
break;
case S3_PROSAVAGE:
case S3_PROSAVAGEDDR:
case S3_TWISTER:
videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
break;
default:
/* How did we get here? */
videoRam = 0;
break;
}
videoRambytes = videoRam * 1024;
printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
/* reset graphics engine to avoid memory corruption */
vga_out8(0x3d4, 0x66, par);
cr66 = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr66 | 0x02, par);
mdelay(10);
vga_out8(0x3d4, 0x66, par);
vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
mdelay(10);
/*
* reset memory interface, 3D engine, AGP master, PCI master,
* master engine unit, motion compensation/LPB
*/
vga_out8(0x3d4, 0x3f, par);
cr3f = vga_in8(0x3d5, par);
vga_out8(0x3d5, cr3f | 0x08, par);
mdelay(10);
vga_out8(0x3d4, 0x3f, par);
vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
mdelay(10);
/* Savage ramdac speeds */
par->numClocks = 4;
par->clock[0] = 250000;
par->clock[1] = 250000;
par->clock[2] = 220000;
par->clock[3] = 220000;
/* detect current mclk */
vga_out8(0x3c4, 0x08, par);
sr8 = vga_in8(0x3c5, par);
vga_out8(0x3c5, 0x06, par);
vga_out8(0x3c4, 0x10, par);
n = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x11, par);
m = vga_in8(0x3c5, par);
vga_out8(0x3c4, 0x08, par);
vga_out8(0x3c5, sr8, par);
m &= 0x7f;
n1 = n & 0x1f;
n2 = (n >> 5) & 0x03;
par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
par->MCLK);
/* check for DVI/flat panel */
dvi = 0;
if (par->chip == S3_SAVAGE4) {
unsigned char sr30 = 0x00;
vga_out8(0x3c4, 0x30, par);
/* clear bit 1 */
vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par);
sr30 = vga_in8(0x3c5, par);
if (sr30 & 0x02 /*0x04 */) {
dvi = 1;
printk("savagefb: Digital Flat Panel Detected\n");
}
}
if ((S3_SAVAGE_MOBILE_SERIES(par->chip) ||
S3_MOBILE_TWISTER_SERIES(par->chip)) && !par->crtonly)
par->display_type = DISP_LCD;
else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
par->display_type = DISP_DFP;
else
par->display_type = DISP_CRT;
/* Check LCD panel parrmation */
if (par->display_type == DISP_LCD) {
unsigned char cr6b = VGArCR(0x6b, par);
int panelX = (VGArSEQ(0x61, par) +
((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
int panelY = (VGArSEQ(0x69, par) +
((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
char * sTechnology = "Unknown";
/* OK, I admit it. I don't know how to limit the max dot clock
* for LCD panels of various sizes. I thought I copied the
* formula from the BIOS, but many users have parrmed me of
* my folly.
*
* Instead, I'll abandon any attempt to automatically limit the
* clock, and add an LCDClock option to XF86Config. Some day,
* I should come back to this.
*/
enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */
ActiveCRT = 0x01,
ActiveLCD = 0x02,
ActiveTV = 0x04,
ActiveCRT2 = 0x20,
ActiveDUO = 0x80
};
if ((VGArSEQ(0x39, par) & 0x03) == 0) {
sTechnology = "TFT";
} else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
sTechnology = "DSTN";
} else {
sTechnology = "STN";
}
printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
panelX, panelY, sTechnology,
cr6b & ActiveLCD ? "and active" : "but not active");
if (cr6b & ActiveLCD) {
/*
* If the LCD is active and panel expansion is enabled,
* we probably want to kill the HW cursor.
*/
printk(KERN_INFO "savagefb: Limiting video mode to "
"%dx%d\n", panelX, panelY);
par->SavagePanelWidth = panelX;
par->SavagePanelHeight = panelY;
} else
par->display_type = DISP_CRT;
}
savage_get_default_par(par, &par->state);
par->save = par->state;
if (S3_SAVAGE4_SERIES(par->chip)) {
/*
* The Savage4 and ProSavage have COB coherency bugs which
* render the buffer useless. We disable it.
*/
par->cob_index = 2;
par->cob_size = 0x8000 << par->cob_index;
par->cob_offset = videoRambytes;
} else {
/* We use 128kB for the COB on all chips. */
par->cob_index = 7;
par->cob_size = 0x400 << par->cob_index;
par->cob_offset = videoRambytes - par->cob_size;
}
return videoRambytes;
}
static int savage_init_fb_info(struct fb_info *info, struct pci_dev *dev,
const struct pci_device_id *id)
{
struct savagefb_par *par = info->par;
int err = 0;
par->pcidev = dev;
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.type_aux = 0;
info->fix.ypanstep = 1;
info->fix.ywrapstep = 0;
info->fix.accel = id->driver_data;
switch (info->fix.accel) {
case FB_ACCEL_SUPERSAVAGE:
par->chip = S3_SUPERSAVAGE;
snprintf(info->fix.id, 16, "SuperSavage");
break;
case FB_ACCEL_SAVAGE4:
par->chip = S3_SAVAGE4;
snprintf(info->fix.id, 16, "Savage4");
break;
case FB_ACCEL_SAVAGE3D:
par->chip = S3_SAVAGE3D;
snprintf(info->fix.id, 16, "Savage3D");
break;
case FB_ACCEL_SAVAGE3D_MV:
par->chip = S3_SAVAGE3D;
snprintf(info->fix.id, 16, "Savage3D-MV");
break;
case FB_ACCEL_SAVAGE2000:
par->chip = S3_SAVAGE2000;
snprintf(info->fix.id, 16, "Savage2000");
break;
case FB_ACCEL_SAVAGE_MX_MV:
par->chip = S3_SAVAGE_MX;
snprintf(info->fix.id, 16, "Savage/MX-MV");
break;
case FB_ACCEL_SAVAGE_MX:
par->chip = S3_SAVAGE_MX;
snprintf(info->fix.id, 16, "Savage/MX");
break;
case FB_ACCEL_SAVAGE_IX_MV:
par->chip = S3_SAVAGE_MX;
snprintf(info->fix.id, 16, "Savage/IX-MV");
break;
case FB_ACCEL_SAVAGE_IX:
par->chip = S3_SAVAGE_MX;
snprintf(info->fix.id, 16, "Savage/IX");
break;
case FB_ACCEL_PROSAVAGE_PM:
par->chip = S3_PROSAVAGE;
snprintf(info->fix.id, 16, "ProSavagePM");
break;
case FB_ACCEL_PROSAVAGE_KM:
par->chip = S3_PROSAVAGE;
snprintf(info->fix.id, 16, "ProSavageKM");
break;
case FB_ACCEL_S3TWISTER_P:
par->chip = S3_TWISTER;
snprintf(info->fix.id, 16, "TwisterP");
break;
case FB_ACCEL_S3TWISTER_K:
par->chip = S3_TWISTER;
snprintf(info->fix.id, 16, "TwisterK");
break;
case FB_ACCEL_PROSAVAGE_DDR:
par->chip = S3_PROSAVAGEDDR;
snprintf(info->fix.id, 16, "ProSavageDDR");
break;
case FB_ACCEL_PROSAVAGE_DDRK:
par->chip = S3_PROSAVAGEDDR;
snprintf(info->fix.id, 16, "ProSavage8");
break;
}
if (S3_SAVAGE3D_SERIES(par->chip)) {
par->SavageWaitIdle = savage3D_waitidle;
par->SavageWaitFifo = savage3D_waitfifo;
} else if (S3_SAVAGE4_SERIES(par->chip) ||
S3_SUPERSAVAGE == par->chip) {
par->SavageWaitIdle = savage4_waitidle;
par->SavageWaitFifo = savage4_waitfifo;
} else {
par->SavageWaitIdle = savage2000_waitidle;
par->SavageWaitFifo = savage2000_waitfifo;
}
info->var.nonstd = 0;
info->var.activate = FB_ACTIVATE_NOW;
info->var.width = -1;
info->var.height = -1;
info->var.accel_flags = 0;
info->fbops = &savagefb_ops;
info->flags = FBINFO_DEFAULT |
FBINFO_HWACCEL_YPAN |
FBINFO_HWACCEL_XPAN;
info->pseudo_palette = par->pseudo_palette;
#if defined(CONFIG_FB_SAVAGE_ACCEL)
/* FIFO size + padding for commands */
info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL);
err = -ENOMEM;
if (info->pixmap.addr) {
info->pixmap.size = 8*1024;
info->pixmap.scan_align = 4;
info->pixmap.buf_align = 4;
info->pixmap.access_align = 32;
err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
if (!err)
info->flags |= FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_IMAGEBLIT;
}
#endif
return err;
}
/* --------------------------------------------------------------------- */
static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct fb_info *info;
struct savagefb_par *par;
u_int h_sync, v_sync;
int err, lpitch;
int video_len;
DBG("savagefb_probe");
info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
if (!info)
return -ENOMEM;
par = info->par;
mutex_init(&par->open_lock);
err = pci_enable_device(dev);
if (err)
goto failed_enable;
if ((err = pci_request_regions(dev, "savagefb"))) {
printk(KERN_ERR "cannot request PCI regions\n");
goto failed_enable;
}
err = -ENOMEM;
if ((err = savage_init_fb_info(info, dev, id)))
goto failed_init;
err = savage_map_mmio(info);
if (err)
goto failed_mmio;
video_len = savage_init_hw(par);
/* FIXME: can't be negative */
if (video_len < 0) {
err = video_len;
goto failed_mmio;
}
err = savage_map_video(info, video_len);
if (err)
goto failed_video;
INIT_LIST_HEAD(&info->modelist);
#if defined(CONFIG_FB_SAVAGE_I2C)
savagefb_create_i2c_busses(info);
savagefb_probe_i2c_connector(info, &par->edid);
fb_edid_to_monspecs(par->edid, &info->monspecs);
kfree(par->edid);
fb_videomode_to_modelist(info->monspecs.modedb,
info->monspecs.modedb_len,
&info->modelist);
#endif
info->var = savagefb_var800x600x8;
/* if a panel was detected, default to a CVT mode instead */
if (par->SavagePanelWidth) {
struct fb_videomode cvt_mode;
memset(&cvt_mode, 0, sizeof(cvt_mode));
cvt_mode.xres = par->SavagePanelWidth;
cvt_mode.yres = par->SavagePanelHeight;
cvt_mode.refresh = 60;
/* FIXME: if we know there is only the panel
* we can enable reduced blanking as well */
if (fb_find_mode_cvt(&cvt_mode, 0, 0))
printk(KERN_WARNING "No CVT mode found for panel\n");
else if (fb_find_mode(&info->var, info, NULL, NULL, 0,
&cvt_mode, 0) != 3)
info->var = savagefb_var800x600x8;
}
if (mode_option) {
fb_find_mode(&info->var, info, mode_option,
info->monspecs.modedb, info->monspecs.modedb_len,
NULL, 8);
} else if (info->monspecs.modedb != NULL) {
const struct fb_videomode *mode;
mode = fb_find_best_display(&info->monspecs, &info->modelist);
savage_update_var(&info->var, mode);
}
/* maximize virtual vertical length */
lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3);
info->var.yres_virtual = info->fix.smem_len/lpitch;
if (info->var.yres_virtual < info->var.yres) {
err = -ENOMEM;
goto failed;
}
#if defined(CONFIG_FB_SAVAGE_ACCEL)
/*
* The clipping coordinates are masked with 0xFFF, so limit our
* virtual resolutions to these sizes.
*/
if (info->var.yres_virtual > 0x1000)
info->var.yres_virtual = 0x1000;
if (info->var.xres_virtual > 0x1000)
info->var.xres_virtual = 0x1000;
#endif
savagefb_check_var(&info->var, info);
savagefb_set_fix(info);
/*
* Calculate the hsync and vsync frequencies. Note that
* we split the 1e12 constant up so that we can preserve
* the precision and fit the results into 32-bit registers.
* (1953125000 * 512 = 1e12)
*/
h_sync = 1953125000 / info->var.pixclock;
h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin +
info->var.right_margin +
info->var.hsync_len);
v_sync = h_sync / (info->var.yres + info->var.upper_margin +
info->var.lower_margin + info->var.vsync_len);
printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": "
"%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
info->fix.smem_len >> 10,
info->var.xres, info->var.yres,
h_sync / 1000, h_sync % 1000, v_sync);
fb_destroy_modedb(info->monspecs.modedb);
info->monspecs.modedb = NULL;
err = register_framebuffer(info);
if (err < 0)
goto failed;
printk(KERN_INFO "fb: S3 %s frame buffer device\n",
info->fix.id);
/*
* Our driver data
*/
pci_set_drvdata(dev, info);
return 0;
failed:
#ifdef CONFIG_FB_SAVAGE_I2C
savagefb_delete_i2c_busses(info);
#endif
fb_alloc_cmap(&info->cmap, 0, 0);
savage_unmap_video(info);
failed_video:
savage_unmap_mmio(info);
failed_mmio:
kfree(info->pixmap.addr);
failed_init:
pci_release_regions(dev);
failed_enable:
framebuffer_release(info);
return err;
}
static void savagefb_remove(struct pci_dev *dev)
{
struct fb_info *info = pci_get_drvdata(dev);
DBG("savagefb_remove");
if (info) {
/*
* If unregister_framebuffer fails, then
* we will be leaving hooks that could cause
* oopsen laying around.
*/
if (unregister_framebuffer(info))
printk(KERN_WARNING "savagefb: danger danger! "
"Oopsen imminent!\n");
#ifdef CONFIG_FB_SAVAGE_I2C
savagefb_delete_i2c_busses(info);
#endif
fb_alloc_cmap(&info->cmap, 0, 0);
savage_unmap_video(info);
savage_unmap_mmio(info);
kfree(info->pixmap.addr);
pci_release_regions(dev);
framebuffer_release(info);
}
}
static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
{
struct fb_info *info = pci_get_drvdata(dev);
struct savagefb_par *par = info->par;
DBG("savagefb_suspend");
if (mesg.event == PM_EVENT_PRETHAW)
mesg.event = PM_EVENT_FREEZE;
par->pm_state = mesg.event;
dev->dev.power.power_state = mesg;
/*
* For PM_EVENT_FREEZE, do not power down so the console
* can remain active.
*/
if (mesg.event == PM_EVENT_FREEZE)
return 0;
console_lock();
fb_set_suspend(info, 1);
if (info->fbops->fb_sync)
info->fbops->fb_sync(info);
savagefb_blank(FB_BLANK_POWERDOWN, info);
savage_set_default_par(par, &par->save);
savage_disable_mmio(par);
pci_save_state(dev);
pci_disable_device(dev);
pci_set_power_state(dev, pci_choose_state(dev, mesg));
console_unlock();
return 0;
}
static int savagefb_resume(struct pci_dev* dev)
{
struct fb_info *info = pci_get_drvdata(dev);
struct savagefb_par *par = info->par;
int cur_state = par->pm_state;
DBG("savage_resume");
par->pm_state = PM_EVENT_ON;
/*
* The adapter was not powered down coming back from a
* PM_EVENT_FREEZE.
*/
if (cur_state == PM_EVENT_FREEZE) {
pci_set_power_state(dev, PCI_D0);
return 0;
}
console_lock();
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
if (pci_enable_device(dev))
DBG("err");
pci_set_master(dev);
savage_enable_mmio(par);
savage_init_hw(par);
savagefb_set_par(info);
fb_set_suspend(info, 0);
savagefb_blank(FB_BLANK_UNBLANK, info);
console_unlock();
return 0;
}
static struct pci_device_id savagefb_devices[] = {
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV},
{PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX},
{PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM},
{PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM},
{PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P},
{PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K},
{PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR},
{PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK},
{0, 0, 0, 0, 0, 0, 0}
};
MODULE_DEVICE_TABLE(pci, savagefb_devices);
static struct pci_driver savagefb_driver = {
.name = "savagefb",
.id_table = savagefb_devices,
.probe = savagefb_probe,
.suspend = savagefb_suspend,
.resume = savagefb_resume,
.remove = savagefb_remove,
};
/* **************************** exit-time only **************************** */
static void __exit savage_done(void)
{
DBG("savage_done");
pci_unregister_driver(&savagefb_driver);
}
/* ************************* init in-kernel code ************************** */
static int __init savagefb_setup(char *options)
{
#ifndef MODULE
char *this_opt;
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
mode_option = this_opt;
}
#endif /* !MODULE */
return 0;
}
static int __init savagefb_init(void)
{
char *option;
DBG("savagefb_init");
if (fb_get_options("savagefb", &option))
return -ENODEV;
savagefb_setup(option);
return pci_register_driver(&savagefb_driver);
}
module_init(savagefb_init);
module_exit(savage_done);
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "Specify initial video mode");