--- /dev/null
+/*
+ * 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/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.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 <asm/system.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+#include "savagefb.h"
+
+
+#define SAVAGEFB_VERSION "0.4.0_2.6"
+
+/* --------------------------------------------------------------------- */
+
+
+static char *mode_option __initdata = NULL;
+static int paletteEnabled = 0;
+
+#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); /* Synchronous Reset */
+ else
+ VGAwSEQ (0x00, 0x03); /* 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);
+
+ vgaHWSeqReset (par, 1); /* start synchronous reset */
+ VGAwSEQ (0x01, tmp | 0x20); /* disable the display */
+
+ VGAenablePalette();
+ } else {
+ /*
+ * Reenable sequencer, then turn on screen.
+ */
+
+ tmp = VGArSEQ (0x01);
+
+ VGAwSEQ (0x01, tmp & ~0x20); /* reenable display */
+ vgaHWSeqReset (par, 0); /* clear synchronous reset */
+
+ VGAdisablePalette();
+ }
+}
+
+static void vgaHWRestore (struct savagefb_par *par)
+{
+ int i;
+
+ VGAwMISC (par->MiscOutReg);
+
+ for (i = 1; i < 5; i++)
+ VGAwSEQ (i, par->Sequencer[i]);
+
+ /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
+ CRTC[17] */
+ VGAwCR (17, par->CRTC[17] & ~0x80);
+
+ for (i = 0; i < 25; i++)
+ VGAwCR (i, par->CRTC[i]);
+
+ for (i = 0; i < 9; i++)
+ VGAwGR (i, par->Graphics[i]);
+
+ VGAenablePalette();
+
+ for (i = 0; i < 21; i++)
+ VGAwATTR (i, par->Attribute[i]);
+
+ VGAdisablePalette();
+}
+
+static void vgaHWInit (struct fb_var_screeninfo *var,
+ struct savagefb_par *par,
+ struct xtimings *timings)
+{
+ par->MiscOutReg = 0x23;
+
+ if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
+ par->MiscOutReg |= 0x40;
+
+ if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
+ par->MiscOutReg |= 0x80;
+
+ /*
+ * Time Sequencer
+ */
+ par->Sequencer[0x00] = 0x00;
+ par->Sequencer[0x01] = 0x01;
+ par->Sequencer[0x02] = 0x0F;
+ par->Sequencer[0x03] = 0x00; /* Font select */
+ par->Sequencer[0x04] = 0x0E; /* Misc */
+
+ /*
+ * CRTC Controller
+ */
+ par->CRTC[0x00] = (timings->HTotal >> 3) - 5;
+ par->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
+ par->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
+ par->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
+ par->CRTC[0x04] = (timings->HSyncStart >> 3);
+ par->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
+ (((timings->HSyncEnd >> 3)) & 0x1f);
+ par->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
+ par->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);
+ par->CRTC[0x08] = 0x00;
+ par->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
+
+ if (timings->dblscan)
+ par->CRTC[0x09] |= 0x80;
+
+ par->CRTC[0x0a] = 0x00;
+ par->CRTC[0x0b] = 0x00;
+ par->CRTC[0x0c] = 0x00;
+ par->CRTC[0x0d] = 0x00;
+ par->CRTC[0x0e] = 0x00;
+ par->CRTC[0x0f] = 0x00;
+ par->CRTC[0x10] = timings->VSyncStart & 0xff;
+ par->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
+ par->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
+ par->CRTC[0x13] = var->xres_virtual >> 4;
+ par->CRTC[0x14] = 0x00;
+ par->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
+ par->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
+ par->CRTC[0x17] = 0xc3;
+ par->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
+ */
+ par->Graphics[0x00] = 0x00;
+ par->Graphics[0x01] = 0x00;
+ par->Graphics[0x02] = 0x00;
+ par->Graphics[0x03] = 0x00;
+ par->Graphics[0x04] = 0x00;
+ par->Graphics[0x05] = 0x40;
+ par->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
+ par->Graphics[0x07] = 0x0F;
+ par->Graphics[0x08] = 0xFF;
+
+
+ par->Attribute[0x00] = 0x00; /* standard colormap translation */
+ par->Attribute[0x01] = 0x01;
+ par->Attribute[0x02] = 0x02;
+ par->Attribute[0x03] = 0x03;
+ par->Attribute[0x04] = 0x04;
+ par->Attribute[0x05] = 0x05;
+ par->Attribute[0x06] = 0x06;
+ par->Attribute[0x07] = 0x07;
+ par->Attribute[0x08] = 0x08;
+ par->Attribute[0x09] = 0x09;
+ par->Attribute[0x0a] = 0x0A;
+ par->Attribute[0x0b] = 0x0B;
+ par->Attribute[0x0c] = 0x0C;
+ par->Attribute[0x0d] = 0x0D;
+ par->Attribute[0x0e] = 0x0E;
+ par->Attribute[0x0f] = 0x0F;
+ par->Attribute[0x10] = 0x41;
+ par->Attribute[0x11] = 0xFF;
+ par->Attribute[0x12] = 0x0F;
+ par->Attribute[0x13] = 0x00;
+ par->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) & 0x0000ffff) > slots);
+}
+
+static void
+savage4_waitfifo(struct savagefb_par *par, int space)
+{
+ int slots = MAXFIFO - space;
+
+ while ((savage_in32(0x48C60) & 0x001fffff) > slots);
+}
+
+static void
+savage2000_waitfifo(struct savagefb_par *par, int space)
+{
+ int slots = MAXFIFO - space;
+
+ while ((savage_in32(0x48C60) & 0x0000ffff) > slots);
+}
+
+/* Wait for idle accelerator */
+static void
+savage3D_waitidle(struct savagefb_par *par)
+{
+ while ((savage_in32(0x48C00) & 0x0008ffff) != 0x80000);
+}
+
+static void
+savage4_waitidle(struct savagefb_par *par)
+{
+ while ((savage_in32(0x48C60) & 0x00a00000) != 0x00a00000);
+}
+
+static void
+savage2000_waitidle(struct savagefb_par *par)
+{
+ while ((savage_in32(0x48C60) & 0x009fffff));
+}
+
+
+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) & 0x3FF0);
+ /* Setup BCI command overflow buffer */
+ savage_out32(0x48C14, (par->cob_offset >> 11) | (par->cob_index << 29));
+ /* Program shadow status update. */
+ savage_out32(0x48C10, 0x78207220);
+ savage_out32(0x48C0C, 0);
+ /* Enable BCI and command overflow buffer */
+ savage_out32(0x48C18, savage_in32(0x48C18) | 0x0C);
+ break;
+ case S3_SAVAGE4:
+ case S3_PROSAVAGE:
+ case S3_SUPERSAVAGE:
+ /* Disable BCI */
+ savage_out32(0x48C18, savage_in32(0x48C18) & 0x3FF0);
+ /* Program shadow status update */
+ savage_out32(0x48C10, 0x00700040);
+ savage_out32(0x48C0C, 0);
+ /* Enable BCI without the COB */
+ savage_out32(0x48C18, savage_in32(0x48C18) | 0x08);
+ break;
+ case S3_SAVAGE2000:
+ /* Disable BCI */
+ savage_out32(0x48C18, 0);
+ /* Setup BCI command overflow buffer */
+ savage_out32(0x48C18, (par->cob_offset >> 7) | (par->cob_index));
+ /* Disable shadow status update */
+ savage_out32(0x48A30, 0);
+ /* Enable BCI and command overflow buffer */
+ savage_out32(0x48C18, savage_in32(0x48C18) | 0x00280000 );
+ break;
+ default:
+ break;
+ }
+ /* Turn on 16-bit register access. */
+ vga_out8(0x3d4, 0x31);
+ vga_out8(0x3d5, 0x0c);
+
+ /* Set stride to use GBD. */
+ vga_out8 (0x3d4, 0x50);
+ vga_out8 (0x3d5, vga_in8 (0x3d5 ) | 0xC1);
+
+ /* Enable 2D engine. */
+ vga_out8 (0x3d4, 0x40 );
+ vga_out8 (0x3d5, 0x01 );
+
+ savage_out32 (MONO_PAT_0, ~0);
+ savage_out32 (MONO_PAT_1, ~0);
+
+ /* Setup plane masks */
+ savage_out32 (0x8128, ~0 ); /* enable all write planes */
+ savage_out32 (0x812C, ~0 ); /* enable all read planes */
+ savage_out16 (0x8134, 0x27 );
+ savage_out16 (0x8136, 0x07 );
+
+ /* 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 );
+}
+
+
+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(void)
+{
+ 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 );
+ printk(KERN_DEBUG " %02x", vga_in8(0x3c5) );
+ }
+
+ 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 );
+ printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg) );
+ }
+
+ printk(KERN_DEBUG "\n\n");
+}
+#endif
+
+/* --------------------------------------------------------------------- */
+
+static void savage_get_default_par(struct savagefb_par *par)
+{
+ unsigned char cr3a, cr53, cr66;
+
+ vga_out16 (0x3d4, 0x4838);
+ vga_out16 (0x3d4, 0xa039);
+ vga_out16 (0x3c4, 0x0608);
+
+ vga_out8 (0x3d4, 0x66);
+ cr66 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr66 | 0x80);
+ vga_out8 (0x3d4, 0x3a);
+ cr3a = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr3a | 0x80);
+ vga_out8 (0x3d4, 0x53);
+ cr53 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr53 & 0x7f);
+
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, cr66);
+ vga_out8 (0x3d4, 0x3a);
+ vga_out8 (0x3d5, cr3a);
+
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, cr66);
+ vga_out8 (0x3d4, 0x3a);
+ vga_out8 (0x3d5, cr3a);
+
+ /* unlock extended seq regs */
+ vga_out8 (0x3c4, 0x08);
+ par->SR08 = vga_in8 (0x3c5);
+ vga_out8 (0x3c5, 0x06);
+
+ /* now save all the extended regs we need */
+ vga_out8 (0x3d4, 0x31);
+ par->CR31 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x32);
+ par->CR32 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x34);
+ par->CR34 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x36);
+ par->CR36 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x3a);
+ par->CR3A = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x40);
+ par->CR40 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x42);
+ par->CR42 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x45);
+ par->CR45 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x50);
+ par->CR50 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x51);
+ par->CR51 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x53);
+ par->CR53 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x58);
+ par->CR58 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x60);
+ par->CR60 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x66);
+ par->CR66 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x67);
+ par->CR67 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x68);
+ par->CR68 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x69);
+ par->CR69 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x6f);
+ par->CR6F = vga_in8 (0x3d5);
+
+ vga_out8 (0x3d4, 0x33);
+ par->CR33 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x86);
+ par->CR86 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x88);
+ par->CR88 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x90);
+ par->CR90 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x91);
+ par->CR91 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0xb0);
+ par->CRB0 = vga_in8 (0x3d5) | 0x80;
+
+ /* extended mode timing regs */
+ vga_out8 (0x3d4, 0x3b);
+ par->CR3B = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x3c);
+ par->CR3C = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x43);
+ par->CR43 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x5d);
+ par->CR5D = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x5e);
+ par->CR5E = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x65);
+ par->CR65 = vga_in8 (0x3d5);
+
+ /* save seq extended regs for DCLK PLL programming */
+ vga_out8 (0x3c4, 0x0e);
+ par->SR0E = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x0f);
+ par->SR0F = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x10);
+ par->SR10 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x11);
+ par->SR11 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x12);
+ par->SR12 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x13);
+ par->SR13 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x29);
+ par->SR29 = vga_in8 (0x3c5);
+
+ vga_out8 (0x3c4, 0x15);
+ par->SR15 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x30);
+ par->SR30 = vga_in8 (0x3c5);
+ vga_out8 (0x3c4, 0x18);
+ par->SR18 = vga_in8 (0x3c5);
+
+ /* Save flat panel expansion regsters. */
+ if (par->chip == S3_SAVAGE_MX) {
+ int i;
+
+ for (i = 0; i < 8; i++) {
+ vga_out8 (0x3c4, 0x54+i);
+ par->SR54[i] = vga_in8 (0x3c5);
+ }
+ }
+
+ vga_out8 (0x3d4, 0x66);
+ cr66 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr66 | 0x80);
+ vga_out8 (0x3d4, 0x3a);
+ cr3a = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr3a | 0x80);
+
+ /* now save MIU regs */
+ if (par->chip != S3_SAVAGE_MX) {
+ par->MMPR0 = savage_in32(FIFO_CONTROL_REG);
+ par->MMPR1 = savage_in32(MIU_CONTROL_REG);
+ par->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG);
+ par->MMPR3 = savage_in32(MISC_TIMEOUT_REG);
+ }
+
+ vga_out8 (0x3d4, 0x3a);
+ vga_out8 (0x3d5, cr3a);
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, cr66);
+}
+
+static void savage_update_var(struct fb_var_screeninfo *var, 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 = (struct savagefb_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) {
+ 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 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);
+
+ /* We need to set CR67 whether or not we use the BIOS. */
+
+ dclk = timings.Clock;
+ par->CR67 = 0x00;
+
+ switch( var->bits_per_pixel ) {
+ case 8:
+ if( (par->chip == S3_SAVAGE2000) && (dclk >= 230000) )
+ par->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
+ else
+ par->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
+ break;
+ case 15:
+ if ( S3_SAVAGE_MOBILE_SERIES(par->chip) ||
+ ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) )
+ par->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
+ else
+ par->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
+ break;
+ case 16:
+ if( S3_SAVAGE_MOBILE_SERIES(par->chip) ||
+ ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) )
+ par->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
+ else
+ par->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
+ break;
+ case 24:
+ par->CR67 = 0x70;
+ break;
+ case 32:
+ par->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);
+ tmp = vga_in8 (0x3d5);
+ if (1 /*FIXME:psav->pci_burst*/)
+ par->CR3A = (tmp & 0x7f) | 0x15;
+ else
+ par->CR3A = tmp | 0x95;
+
+ par->CR53 = 0x00;
+ par->CR31 = 0x8c;
+ par->CR66 = 0x89;
+
+ vga_out8 (0x3d4, 0x58);
+ par->CR58 = vga_in8 (0x3d5) & 0x80;
+ par->CR58 |= 0x13;
+
+ par->SR15 = 0x03 | 0x80;
+ par->SR18 = 0x00;
+ par->CR43 = par->CR45 = par->CR65 = 0x00;
+
+ vga_out8 (0x3d4, 0x40);
+ par->CR40 = vga_in8 (0x3d5) & ~0x01;
+
+ par->MMPR0 = 0x010400;
+ par->MMPR1 = 0x00;
+ par->MMPR2 = 0x0808;
+ par->MMPR3 = 0x08080810;
+
+ SavageCalcClock (dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
+ /* m = 107; n = 4; r = 2; */
+
+ if (par->MCLK <= 0) {
+ par->SR10 = 255;
+ par->SR11 = 255;
+ } else {
+ common_calc_clock (par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
+ &par->SR11, &par->SR10);
+ /* par->SR10 = 80; // MCLK == 286000 */
+ /* par->SR11 = 125; */
+ }
+
+ par->SR12 = (r << 6) | (n & 0x3f);
+ par->SR13 = m & 0xff;
+ par->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
+
+ if (var->bits_per_pixel < 24)
+ par->MMPR0 -= 0x8000;
+ else
+ par->MMPR0 -= 0x4000;
+
+ if (timings.interlaced)
+ par->CR42 = 0x20;
+ else
+ par->CR42 = 0x00;
+
+ par->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 = (par->CRTC[0] + ((i & 0x01) << 8) +
+ par->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
+
+ if (j - (par->CRTC[4] + ((i & 0x10) << 4)) < 4) {
+ if (par->CRTC[4] + ((i & 0x10) << 4) + 4 <=
+ par->CRTC[0] + ((i & 0x01) << 8))
+ j = par->CRTC[4] + ((i & 0x10) << 4) + 4;
+ else
+ j = par->CRTC[0] + ((i & 0x01) << 8) + 1;
+ }
+
+ par->CR3B = j & 0xff;
+ i |= (j & 0x100) >> 2;
+ par->CR3C = (par->CRTC[0] + ((i & 0x01) << 8)) / 2;
+ par->CR5D = i;
+ par->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;
+ par->CR91 = par->CRTC[19] = 0xff & width;
+ par->CR51 = (0x300 & width) >> 4;
+ par->CR90 = 0x80 | (width >> 8);
+ par->MiscOutReg |= 0x0c;
+
+ /* Set frame buffer description. */
+
+ if (var->bits_per_pixel <= 8)
+ par->CR50 = 0;
+ else if (var->bits_per_pixel <= 16)
+ par->CR50 = 0x10;
+ else
+ par->CR50 = 0x30;
+
+ if (var->xres_virtual <= 640)
+ par->CR50 |= 0x40;
+ else if (var->xres_virtual == 800)
+ par->CR50 |= 0x80;
+ else if (var->xres_virtual == 1024)
+ par->CR50 |= 0x00;
+ else if (var->xres_virtual == 1152)
+ par->CR50 |= 0x01;
+ else if (var->xres_virtual == 1280)
+ par->CR50 |= 0xc0;
+ else if (var->xres_virtual == 1600)
+ par->CR50 |= 0x81;
+ else
+ par->CR50 |= 0xc1; /* Use GBD */
+
+ if( par->chip == S3_SAVAGE2000 )
+ par->CR33 = 0x08;
+ else
+ par->CR33 = 0x20;
+
+ par->CRTC[0x17] = 0xeb;
+
+ par->CR67 |= 1;
+
+ vga_out8(0x3d4, 0x36);
+ par->CR36 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x68);
+ par->CR68 = vga_in8 (0x3d5);
+ par->CR69 = 0;
+ vga_out8 (0x3d4, 0x6f);
+ par->CR6F = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x86);
+ par->CR86 = vga_in8 (0x3d5);
+ vga_out8 (0x3d4, 0x88);
+ par->CR88 = vga_in8 (0x3d5) | 0x08;
+ vga_out8 (0x3d4, 0xb0);
+ par->CRB0 = vga_in8 (0x3d5) | 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 = (struct savagefb_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);
+
+ vga_out8 (0x3c9, red >> 10);
+ vga_out8 (0x3c9, green >> 10);
+ vga_out8 (0x3c9, blue >> 10);
+ 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)
+{
+ unsigned char tmp, cr3a, cr66, cr67;
+
+ DBG ("savagefb_set_par_int");
+
+ par->SavageWaitIdle (par);
+
+ vga_out8 (0x3c2, 0x23);
+
+ vga_out16 (0x3d4, 0x4838);
+ vga_out16 (0x3d4, 0xa539);
+ vga_out16 (0x3c4, 0x0608);
+
+ 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();
+ vga_out8 (0x3d4, 0x67);
+ cr67 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr67/*par->CR67*/ & ~0x0c); /* no STREAMS yet */
+
+ vga_out8 (0x3d4, 0x23);
+ vga_out8 (0x3d5, 0x00);
+ vga_out8 (0x3d4, 0x26);
+ vga_out8 (0x3d5, 0x00);
+
+ /* restore extended regs */
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, par->CR66);
+ vga_out8 (0x3d4, 0x3a);
+ vga_out8 (0x3d5, par->CR3A);
+ vga_out8 (0x3d4, 0x31);
+ vga_out8 (0x3d5, par->CR31);
+ vga_out8 (0x3d4, 0x32);
+ vga_out8 (0x3d5, par->CR32);
+ vga_out8 (0x3d4, 0x58);
+ vga_out8 (0x3d5, par->CR58);
+ vga_out8 (0x3d4, 0x53);
+ vga_out8 (0x3d5, par->CR53 & 0x7f);
+
+ vga_out16 (0x3c4, 0x0608);
+
+ /* Restore DCLK registers. */
+
+ vga_out8 (0x3c4, 0x0e);
+ vga_out8 (0x3c5, par->SR0E);
+ vga_out8 (0x3c4, 0x0f);
+ vga_out8 (0x3c5, par->SR0F);
+ vga_out8 (0x3c4, 0x29);
+ vga_out8 (0x3c5, par->SR29);
+ vga_out8 (0x3c4, 0x15);
+ vga_out8 (0x3c5, par->SR15);
+
+ /* Restore flat panel expansion regsters. */
+ if( par->chip == S3_SAVAGE_MX ) {
+ int i;
+
+ for( i = 0; i < 8; i++ ) {
+ vga_out8 (0x3c4, 0x54+i);
+ vga_out8 (0x3c5, par->SR54[i]);
+ }
+ }
+
+ vgaHWRestore (par);
+
+ /* extended mode timing registers */
+ vga_out8 (0x3d4, 0x53);
+ vga_out8 (0x3d5, par->CR53);
+ vga_out8 (0x3d4, 0x5d);
+ vga_out8 (0x3d5, par->CR5D);
+ vga_out8 (0x3d4, 0x5e);
+ vga_out8 (0x3d5, par->CR5E);
+ vga_out8 (0x3d4, 0x3b);
+ vga_out8 (0x3d5, par->CR3B);
+ vga_out8 (0x3d4, 0x3c);
+ vga_out8 (0x3d5, par->CR3C);
+ vga_out8 (0x3d4, 0x43);
+ vga_out8 (0x3d5, par->CR43);
+ vga_out8 (0x3d4, 0x65);
+ vga_out8 (0x3d5, par->CR65);
+
+ /* restore the desired video mode with cr67 */
+ vga_out8 (0x3d4, 0x67);
+ /* following part not present in X11 driver */
+ cr67 = vga_in8 (0x3d5) & 0xf;
+ vga_out8 (0x3d5, 0x50 | cr67);
+ udelay (10000);
+ vga_out8 (0x3d4, 0x67);
+ /* end of part */
+ vga_out8 (0x3d5, par->CR67 & ~0x0c);
+
+ /* other mode timing and extended regs */
+ vga_out8 (0x3d4, 0x34);
+ vga_out8 (0x3d5, par->CR34);
+ vga_out8 (0x3d4, 0x40);
+ vga_out8 (0x3d5, par->CR40);
+ vga_out8 (0x3d4, 0x42);
+ vga_out8 (0x3d5, par->CR42);
+ vga_out8 (0x3d4, 0x45);
+ vga_out8 (0x3d5, par->CR45);
+ vga_out8 (0x3d4, 0x50);
+ vga_out8 (0x3d5, par->CR50);
+ vga_out8 (0x3d4, 0x51);
+ vga_out8 (0x3d5, par->CR51);
+
+ /* memory timings */
+ vga_out8 (0x3d4, 0x36);
+ vga_out8 (0x3d5, par->CR36);
+ vga_out8 (0x3d4, 0x60);
+ vga_out8 (0x3d5, par->CR60);
+ vga_out8 (0x3d4, 0x68);
+ vga_out8 (0x3d5, par->CR68);
+ vga_out8 (0x3d4, 0x69);
+ vga_out8 (0x3d5, par->CR69);
+ vga_out8 (0x3d4, 0x6f);
+ vga_out8 (0x3d5, par->CR6F);
+
+ vga_out8 (0x3d4, 0x33);
+ vga_out8 (0x3d5, par->CR33);
+ vga_out8 (0x3d4, 0x86);
+ vga_out8 (0x3d5, par->CR86);
+ vga_out8 (0x3d4, 0x88);
+ vga_out8 (0x3d5, par->CR88);
+ vga_out8 (0x3d4, 0x90);
+ vga_out8 (0x3d5, par->CR90);
+ vga_out8 (0x3d4, 0x91);
+ vga_out8 (0x3d5, par->CR91);
+
+ if (par->chip == S3_SAVAGE4) {
+ vga_out8 (0x3d4, 0xb0);
+ vga_out8 (0x3d5, par->CRB0);
+ }
+
+ vga_out8 (0x3d4, 0x32);
+ vga_out8 (0x3d5, par->CR32);
+
+ /* unlock extended seq regs */
+ vga_out8 (0x3c4, 0x08);
+ vga_out8 (0x3c5, 0x06);
+
+ /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
+ * that we should leave the default SR10 and SR11 values there.
+ */
+ if (par->SR10 != 255) {
+ vga_out8 (0x3c4, 0x10);
+ vga_out8 (0x3c5, par->SR10);
+ vga_out8 (0x3c4, 0x11);
+ vga_out8 (0x3c5, par->SR11);
+ }
+
+ /* restore extended seq regs for dclk */
+ vga_out8 (0x3c4, 0x0e);
+ vga_out8 (0x3c5, par->SR0E);
+ vga_out8 (0x3c4, 0x0f);
+ vga_out8 (0x3c5, par->SR0F);
+ vga_out8 (0x3c4, 0x12);
+ vga_out8 (0x3c5, par->SR12);
+ vga_out8 (0x3c4, 0x13);
+ vga_out8 (0x3c5, par->SR13);
+ vga_out8 (0x3c4, 0x29);
+ vga_out8 (0x3c5, par->SR29);
+
+ vga_out8 (0x3c4, 0x18);
+ vga_out8 (0x3c5, par->SR18);
+
+ /* load new m, n pll values for dclk & mclk */
+ vga_out8 (0x3c4, 0x15);
+ tmp = vga_in8 (0x3c5) & ~0x21;
+
+ vga_out8 (0x3c5, tmp | 0x03);
+ vga_out8 (0x3c5, tmp | 0x23);
+ vga_out8 (0x3c5, tmp | 0x03);
+ vga_out8 (0x3c5, par->SR15);
+ udelay (100);
+
+ vga_out8 (0x3c4, 0x30);
+ vga_out8 (0x3c5, par->SR30);
+ vga_out8 (0x3c4, 0x08);
+ vga_out8 (0x3c5, par->SR08);
+
+ /* now write out cr67 in full, possibly starting STREAMS */
+ VerticalRetraceWait();
+ vga_out8 (0x3d4, 0x67);
+ vga_out8 (0x3d5, par->CR67);
+
+ vga_out8 (0x3d4, 0x66);
+ cr66 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr66 | 0x80);
+ vga_out8 (0x3d4, 0x3a);
+ cr3a = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr3a | 0x80);
+
+ if (par->chip != S3_SAVAGE_MX) {
+ VerticalRetraceWait();
+ savage_out32 (FIFO_CONTROL_REG, par->MMPR0);
+ par->SavageWaitIdle (par);
+ savage_out32 (MIU_CONTROL_REG, par->MMPR1);
+ par->SavageWaitIdle (par);
+ savage_out32 (STREAMS_TIMEOUT_REG, par->MMPR2);
+ par->SavageWaitIdle (par);
+ savage_out32 (MISC_TIMEOUT_REG, par->MMPR3);
+ }
+
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, cr66);
+ vga_out8 (0x3d4, 0x3a);
+ vga_out8 (0x3d5, cr3a);
+
+ SavageSetup2DEngine (par);
+ vgaHWProtect (par, 0);
+}
+
+static void savagefb_update_start (struct savagefb_par *par,
+ struct fb_var_screeninfo *var)
+{
+ int base;
+
+ base = ((var->yoffset * var->xres_virtual + (var->xoffset & ~1))
+ * ((var->bits_per_pixel+7) / 8)) >> 2;
+
+ /* now program the start address registers */
+ vga_out16(0x3d4, (base & 0x00ff00) | 0x0c);
+ vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d);
+ vga_out8 (0x3d4, 0x69);
+ vga_out8 (0x3d5, (base & 0x7f0000) >> 16);
+}
+
+
+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;
+ else
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+}
+
+#if defined(CONFIG_FB_SAVAGE_ACCEL)
+static void savagefb_set_clip(struct fb_info *info)
+{
+ struct savagefb_par *par = (struct savagefb_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));
+}
+#endif
+
+static int savagefb_set_par (struct fb_info *info)
+{
+ struct savagefb_par *par = (struct savagefb_par *)info->par;
+ struct fb_var_screeninfo *var = &info->var;
+ int err;
+
+ DBG("savagefb_set_par");
+ err = savagefb_decode_var (var, par);
+ 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);
+ savagefb_update_start (par, var);
+ fb_set_cmap (&info->cmap, info);
+ savagefb_set_fix(info);
+ savagefb_set_clip(info);
+
+ SavagePrintRegs();
+ 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 = (struct savagefb_par *)info->par;
+ u_int y_bottom;
+
+ y_bottom = var->yoffset;
+
+ if (!(var->vmode & FB_VMODE_YWRAP))
+ y_bottom += var->yres;
+
+ if (var->xoffset > (var->xres_virtual - var->xres))
+ return -EINVAL;
+ if (y_bottom > info->var.yres_virtual)
+ return -EINVAL;
+
+ savagefb_update_start (par, var);
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
+ else
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+
+ return 0;
+}
+
+
+static struct fb_ops savagefb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = savagefb_check_var,
+ .fb_set_par = savagefb_set_par,
+ .fb_setcolreg = savagefb_setcolreg,
+ .fb_pan_display = savagefb_pan_display,
+#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
+ .fb_cursor = soft_cursor,
+};
+
+/* --------------------------------------------------------------------- */
+
+static struct fb_var_screeninfo __devinitdata 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);
+ vga_out8 (0x3c3, val | 0x01);
+ val = vga_in8 (0x3cc);
+ vga_out8 (0x3c2, val | 0x01);
+
+ if (par->chip >= S3_SAVAGE4) {
+ vga_out8 (0x3d4, 0x40);
+ val = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, val | 1);
+ }
+}
+
+
+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);
+ val = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, val | 1);
+ }
+}
+
+
+static int __devinit savage_map_mmio (struct fb_info *info)
+{
+ struct savagefb_par *par = (struct savagefb_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 __devinit savage_unmap_mmio (struct fb_info *info)
+{
+ struct savagefb_par *par = (struct savagefb_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 __devinit savage_map_video (struct fb_info *info,
+ int video_len)
+{
+ struct savagefb_par *par = (struct savagefb_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 (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;
+
+#ifdef CONFIG_MTRR
+ par->video.mtrr = mtrr_add (par->video.pbase, video_len,
+ MTRR_TYPE_WRCOMB, 1);
+#endif
+
+ /* Clear framebuffer, it's all white in memory after boot */
+ memset_io (par->video.vbase, 0, par->video.len);
+
+ return 0;
+}
+
+static void __devinit savage_unmap_video (struct fb_info *info)
+{
+ struct savagefb_par *par = (struct savagefb_par *)info->par;
+
+ DBG("savage_unmap_video");
+
+ if (par->video.vbase) {
+#ifdef CONFIG_MTRR
+ mtrr_del (par->video.mtrr, par->video.pbase, par->video.len);
+#endif
+
+ iounmap (par->video.vbase);
+ par->video.vbase = NULL;
+ info->screen_base = NULL;
+ }
+}
+
+static int __devinit 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;
+
+ DBG("savage_init_hw");
+
+ /* unprotect CRTC[0-7] */
+ vga_out8(0x3d4, 0x11);
+ tmp = vga_in8(0x3d5);
+ vga_out8(0x3d5, tmp & 0x7f);
+
+ /* unlock extended regs */
+ vga_out16(0x3d4, 0x4838);
+ vga_out16(0x3d4, 0xa039);
+ vga_out16(0x3c4, 0x0608);
+
+ vga_out8(0x3d4, 0x40);
+ tmp = vga_in8(0x3d5);
+ vga_out8(0x3d5, tmp & ~0x01);
+
+ /* unlock sys regs */
+ vga_out8(0x3d4, 0x38);
+ vga_out8(0x3d5, 0x48);
+
+ /* Unlock system registers. */
+ vga_out16(0x3d4, 0x4838);
+
+ /* Next go on to detect amount of installed ram */
+
+ vga_out8(0x3d4, 0x36); /* for register CR36 (CONFG_REG1), */
+ config1 = vga_in8(0x3d5); /* 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); /* memory control 1 */
+ if( (vga_in8(0x3d5) & 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:
+ 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);
+ cr66 = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr66 | 0x02);
+ udelay (10000);
+
+ vga_out8 (0x3d4, 0x66);
+ vga_out8 (0x3d5, cr66 & ~0x02); /* clear reset flag */
+ udelay (10000);
+
+
+ /*
+ * reset memory interface, 3D engine, AGP master, PCI master,
+ * master engine unit, motion compensation/LPB
+ */
+ vga_out8 (0x3d4, 0x3f);
+ cr3f = vga_in8 (0x3d5);
+ vga_out8 (0x3d5, cr3f | 0x08);
+ udelay (10000);
+
+ vga_out8 (0x3d4, 0x3f);
+ vga_out8 (0x3d5, cr3f & ~0x08); /* clear reset flags */
+ udelay (10000);
+
+ /* 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);
+ sr8 = vga_in8(0x3c5);
+ vga_out8(0x3c5, 0x06);
+ vga_out8(0x3c4, 0x10);
+ n = vga_in8(0x3c5);
+ vga_out8(0x3c4, 0x11);
+ m = vga_in8(0x3c5);
+ vga_out8(0x3c4, 0x08);
+ vga_out8(0x3c5, sr8);
+ 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 LCD panel parrmation */
+
+ if (par->chip == S3_SAVAGE_MX) {
+ unsigned char cr6b = VGArCR( 0x6b );
+
+ int panelX = (VGArSEQ (0x61) +
+ ((VGArSEQ (0x66) & 0x02) << 7) + 1) * 8;
+ int panelY = (VGArSEQ (0x69) +
+ ((VGArSEQ (0x6e) & 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) & 0x03) == 0) {
+ sTechnology = "TFT";
+ } else if ((VGArSEQ (0x30) & 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;
+
+ }
+ }
+
+ savage_get_default_par (par);
+
+ 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 __devinit savage_init_fb_info (struct fb_info *info,
+ struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ struct savagefb_par *par = (struct savagefb_par *)info->par;
+ int err = 0;
+
+ par->pcidev = dev;
+
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.type_aux = 0;
+ info->fix.xpanstep = 2;
+ 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_PROSAVAGE;
+ snprintf (info->fix.id, 16, "TwisterP");
+ break;
+ case FB_ACCEL_S3TWISTER_K:
+ par->chip = S3_PROSAVAGE;
+ snprintf (info->fix.id, 16, "TwisterK");
+ break;
+ case FB_ACCEL_PROSAVAGE_DDR:
+ par->chip = S3_PROSAVAGE;
+ snprintf (info->fix.id, 16, "ProSavageDDR");
+ break;
+ case FB_ACCEL_PROSAVAGE_DDRK:
+ par->chip = S3_PROSAVAGE;
+ 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 = kmalloc(8*1024, GFP_KERNEL);
+
+ err = -ENOMEM;
+ if (info->pixmap.addr) {
+ memset(info->pixmap.addr, 0, 8*1024);
+ info->pixmap.size = 8*1024;
+ info->pixmap.scan_align = 4;
+ info->pixmap.buf_align = 4;
+ info->pixmap.access_align = 4;
+
+ fb_alloc_cmap (&info->cmap, NR_PALETTE, 0);
+ info->flags |= FBINFO_HWACCEL_COPYAREA |
+ FBINFO_HWACCEL_FILLRECT |
+ FBINFO_HWACCEL_IMAGEBLIT;
+
+ err = 0;
+ }
+#endif
+ return err;
+}
+
+/* --------------------------------------------------------------------- */
+
+static int __devinit 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");
+ SavagePrintRegs();
+
+ info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
+ if (!info)
+ return -ENOMEM;
+ par = info->par;
+ err = pci_enable_device(dev);
+ if (err)
+ goto failed_enable;
+
+ if (pci_request_regions(dev, "savagefb")) {
+ printk(KERN_ERR "cannot request PCI regions\n");
+ goto failed_enable;
+ }
+
+ err = -ENOMEM;
+
+ if (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);
+ 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(par, &par->edid);
+ fb_edid_to_monspecs(par->edid, &info->monspecs);
+ fb_videomode_to_modelist(info->monspecs.modedb,
+ info->monspecs.modedb_len,
+ &info->modelist);
+#endif
+ 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) {
+ struct fb_monspecs *specs = &info->monspecs;
+ struct fb_videomode modedb;
+
+ if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
+ int i;
+
+ for (i = 0; i < specs->modedb_len; i++) {
+ if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
+ modedb = specs->modedb[i];
+ break;
+ }
+ }
+ } else {
+ /* otherwise, get first mode in database */
+ modedb = specs->modedb[0];
+ }
+
+ savage_update_var(&info->var, &modedb);
+ }
+
+ /* 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)
+ 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 __devexit savagefb_remove (struct pci_dev *dev)
+{
+ struct fb_info *info =
+ (struct fb_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);
+
+ /*
+ * Ensure that the driver data is no longer
+ * valid.
+ */
+ pci_set_drvdata(dev, NULL);
+ }
+}
+
+static int savagefb_suspend (struct pci_dev* dev, pm_message_t state)
+{
+ struct fb_info *info =
+ (struct fb_info *)pci_get_drvdata(dev);
+ struct savagefb_par *par = (struct savagefb_par *)info->par;
+
+ DBG("savagefb_suspend");
+ printk(KERN_DEBUG "state: %u\n", state);
+
+ acquire_console_sem();
+ fb_set_suspend(info, state);
+ savage_disable_mmio(par);
+ release_console_sem();
+
+ pci_disable_device(dev);
+ pci_set_power_state(dev, pci_choose_state(dev, state));
+
+ return 0;
+}
+
+static int savagefb_resume (struct pci_dev* dev)
+{
+ struct fb_info *info =
+ (struct fb_info *)pci_get_drvdata(dev);
+ struct savagefb_par *par = (struct savagefb_par *)info->par;
+
+ DBG("savage_resume");
+
+ pci_set_power_state(dev, 0);
+ pci_restore_state(dev);
+ if(pci_enable_device(dev))
+ DBG("err");
+
+ SavagePrintRegs();
+
+ acquire_console_sem();
+
+ savage_enable_mmio(par);
+ savage_init_hw(par);
+ savagefb_set_par (info);
+
+ fb_set_suspend (info, 0);
+ release_console_sem();
+
+ return 0;
+}
+
+
+static struct pci_device_id savagefb_devices[] __devinitdata = {
+ {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 = __devexit_p(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);
git://git.onelab.eu / linux-2.6.git / blobdiff