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path: root/drivers/video/tridentfb.c
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-rw-r--r--drivers/video/tridentfb.c1294
1 files changed, 1294 insertions, 0 deletions
diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
new file mode 100644
index 00000000000..da8004e5d03
--- /dev/null
+++ b/drivers/video/tridentfb.c
@@ -0,0 +1,1294 @@
+/*
+ * Frame buffer driver for Trident Blade and Image series
+ *
+ * Copyright 2001,2002 - Jani Monoses <jani@iv.ro>
+ *
+ *
+ * CREDITS:(in order of appearance)
+ * skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
+ * Special thanks ;) to Mattia Crivellini <tia@mclink.it>
+ * much inspired by the XFree86 4.x Trident driver sources by Alan Hourihane
+ * the FreeVGA project
+ * Francesco Salvestrini <salvestrini@users.sf.net> XP support,code,suggestions
+ * TODO:
+ * timing value tweaking so it looks good on every monitor in every mode
+ * TGUI acceleration
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <linux/delay.h>
+#include <video/trident.h>
+
+#define VERSION "0.7.8-NEWAPI"
+
+struct tridentfb_par {
+ int vclk; //in MHz
+ void __iomem * io_virt; //iospace virtual memory address
+};
+
+static unsigned char eng_oper; //engine operation...
+static struct fb_ops tridentfb_ops;
+
+static struct tridentfb_par default_par;
+
+/* FIXME:kmalloc these 3 instead */
+static struct fb_info fb_info;
+static u32 pseudo_pal[16];
+
+
+static struct fb_var_screeninfo default_var;
+
+static struct fb_fix_screeninfo tridentfb_fix = {
+ .id = "Trident",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .ypanstep = 1,
+ .visual = FB_VISUAL_PSEUDOCOLOR,
+ .accel = FB_ACCEL_NONE,
+};
+
+static int chip_id;
+
+static int defaultaccel;
+static int displaytype;
+
+
+/* defaults which are normally overriden by user values */
+
+/* video mode */
+static char * mode = "640x480";
+static int bpp = 8;
+
+static int noaccel;
+
+static int center;
+static int stretch;
+
+static int fp;
+static int crt;
+
+static int memsize;
+static int memdiff;
+static int nativex;
+
+
+module_param(mode, charp, 0);
+module_param(bpp, int, 0);
+module_param(center, int, 0);
+module_param(stretch, int, 0);
+module_param(noaccel, int, 0);
+module_param(memsize, int, 0);
+module_param(memdiff, int, 0);
+module_param(nativex, int, 0);
+module_param(fp, int, 0);
+module_param(crt, int, 0);
+
+
+static int chip3D;
+static int chipcyber;
+
+static int is3Dchip(int id)
+{
+ return ((id == BLADE3D) || (id == CYBERBLADEE4) ||
+ (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
+ (id == CYBER9397) || (id == CYBER9397DVD) ||
+ (id == CYBER9520) || (id == CYBER9525DVD) ||
+ (id == IMAGE975) || (id == IMAGE985) ||
+ (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
+ (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
+ (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
+ (id == CYBERBLADEXPAi1));
+}
+
+static int iscyber(int id)
+{
+ switch (id) {
+ case CYBER9388:
+ case CYBER9382:
+ case CYBER9385:
+ case CYBER9397:
+ case CYBER9397DVD:
+ case CYBER9520:
+ case CYBER9525DVD:
+ case CYBERBLADEE4:
+ case CYBERBLADEi7D:
+ case CYBERBLADEi1:
+ case CYBERBLADEi1D:
+ case CYBERBLADEAi1:
+ case CYBERBLADEAi1D:
+ case CYBERBLADEXPAi1:
+ return 1;
+
+ case CYBER9320:
+ case TGUI9660:
+ case IMAGE975:
+ case IMAGE985:
+ case BLADE3D:
+ case CYBERBLADEi7: /* VIA MPV4 integrated version */
+
+ default:
+ /* case CYBERBLDAEXPm8: Strange */
+ /* case CYBERBLDAEXPm16: Strange */
+ return 0;
+ }
+}
+
+#define CRT 0x3D0 //CRTC registers offset for color display
+
+#ifndef TRIDENT_MMIO
+ #define TRIDENT_MMIO 1
+#endif
+
+#if TRIDENT_MMIO
+ #define t_outb(val,reg) writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg)
+ #define t_inb(reg) readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg)
+#else
+ #define t_outb(val,reg) outb(val,reg)
+ #define t_inb(reg) inb(reg)
+#endif
+
+
+static struct accel_switch {
+ void (*init_accel)(int,int);
+ void (*wait_engine)(void);
+ void (*fill_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
+ void (*copy_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
+} *acc;
+
+#define writemmr(r,v) writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r)
+#define readmmr(r) readl(((struct tridentfb_par *)fb_info.par)->io_virt + r)
+
+
+
+/*
+ * Blade specific acceleration.
+ */
+
+#define point(x,y) ((y)<<16|(x))
+#define STA 0x2120
+#define CMD 0x2144
+#define ROP 0x2148
+#define CLR 0x2160
+#define SR1 0x2100
+#define SR2 0x2104
+#define DR1 0x2108
+#define DR2 0x210C
+
+#define ROP_S 0xCC
+
+static void blade_init_accel(int pitch,int bpp)
+{
+ int v1 = (pitch>>3)<<20;
+ int tmp = 0,v2;
+ switch (bpp) {
+ case 8:tmp = 0;break;
+ case 15:tmp = 5;break;
+ case 16:tmp = 1;break;
+ case 24:
+ case 32:tmp = 2;break;
+ }
+ v2 = v1 | (tmp<<29);
+ writemmr(0x21C0,v2);
+ writemmr(0x21C4,v2);
+ writemmr(0x21B8,v2);
+ writemmr(0x21BC,v2);
+ writemmr(0x21D0,v1);
+ writemmr(0x21D4,v1);
+ writemmr(0x21C8,v1);
+ writemmr(0x21CC,v1);
+ writemmr(0x216C,0);
+}
+
+static void blade_wait_engine(void)
+{
+ while(readmmr(STA) & 0xFA800000);
+}
+
+static void blade_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
+{
+ writemmr(CLR,c);
+ writemmr(ROP,rop ? 0x66:ROP_S);
+ writemmr(CMD,0x20000000|1<<19|1<<4|2<<2);
+
+ writemmr(DR1,point(x,y));
+ writemmr(DR2,point(x+w-1,y+h-1));
+}
+
+static void blade_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
+{
+ __u32 s1,s2,d1,d2;
+ int direction = 2;
+ s1 = point(x1,y1);
+ s2 = point(x1+w-1,y1+h-1);
+ d1 = point(x2,y2);
+ d2 = point(x2+w-1,y2+h-1);
+
+ if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
+ direction = 0;
+
+
+ writemmr(ROP,ROP_S);
+ writemmr(CMD,0xE0000000|1<<19|1<<4|1<<2|direction);
+
+ writemmr(SR1,direction?s2:s1);
+ writemmr(SR2,direction?s1:s2);
+ writemmr(DR1,direction?d2:d1);
+ writemmr(DR2,direction?d1:d2);
+}
+
+static struct accel_switch accel_blade = {
+ blade_init_accel,
+ blade_wait_engine,
+ blade_fill_rect,
+ blade_copy_rect,
+};
+
+
+/*
+ * BladeXP specific acceleration functions
+ */
+
+#define ROP_P 0xF0
+#define masked_point(x,y) ((y & 0xffff)<<16|(x & 0xffff))
+
+static void xp_init_accel(int pitch,int bpp)
+{
+ int tmp = 0,v1;
+ unsigned char x = 0;
+
+ switch (bpp) {
+ case 8: x = 0; break;
+ case 16: x = 1; break;
+ case 24: x = 3; break;
+ case 32: x = 2; break;
+ }
+
+ switch (pitch << (bpp >> 3)) {
+ case 8192:
+ case 512: x |= 0x00; break;
+ case 1024: x |= 0x04; break;
+ case 2048: x |= 0x08; break;
+ case 4096: x |= 0x0C; break;
+ }
+
+ t_outb(x,0x2125);
+
+ eng_oper = x | 0x40;
+
+ switch (bpp) {
+ case 8: tmp = 18; break;
+ case 15:
+ case 16: tmp = 19; break;
+ case 24:
+ case 32: tmp = 20; break;
+ }
+
+ v1 = pitch << tmp;
+
+ writemmr(0x2154,v1);
+ writemmr(0x2150,v1);
+ t_outb(3,0x2126);
+}
+
+static void xp_wait_engine(void)
+{
+ int busy;
+ int count, timeout;
+
+ count = 0;
+ timeout = 0;
+ for (;;) {
+ busy = t_inb(STA) & 0x80;
+ if (busy != 0x80)
+ return;
+ count++;
+ if (count == 10000000) {
+ /* Timeout */
+ count = 9990000;
+ timeout++;
+ if (timeout == 8) {
+ /* Reset engine */
+ t_outb(0x00, 0x2120);
+ return;
+ }
+ }
+ }
+}
+
+static void xp_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
+{
+ writemmr(0x2127,ROP_P);
+ writemmr(0x2158,c);
+ writemmr(0x2128,0x4000);
+ writemmr(0x2140,masked_point(h,w));
+ writemmr(0x2138,masked_point(y,x));
+ t_outb(0x01,0x2124);
+ t_outb(eng_oper,0x2125);
+}
+
+static void xp_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
+{
+ int direction;
+ __u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
+
+ direction = 0x0004;
+
+ if ((x1 < x2) && (y1 == y2)) {
+ direction |= 0x0200;
+ x1_tmp = x1 + w - 1;
+ x2_tmp = x2 + w - 1;
+ } else {
+ x1_tmp = x1;
+ x2_tmp = x2;
+ }
+
+ if (y1 < y2) {
+ direction |= 0x0100;
+ y1_tmp = y1 + h - 1;
+ y2_tmp = y2 + h - 1;
+ } else {
+ y1_tmp = y1;
+ y2_tmp = y2;
+ }
+
+ writemmr(0x2128,direction);
+ t_outb(ROP_S,0x2127);
+ writemmr(0x213C,masked_point(y1_tmp,x1_tmp));
+ writemmr(0x2138,masked_point(y2_tmp,x2_tmp));
+ writemmr(0x2140,masked_point(h,w));
+ t_outb(0x01,0x2124);
+}
+
+static struct accel_switch accel_xp = {
+ xp_init_accel,
+ xp_wait_engine,
+ xp_fill_rect,
+ xp_copy_rect,
+};
+
+
+/*
+ * Image specific acceleration functions
+ */
+static void image_init_accel(int pitch,int bpp)
+{
+ int tmp = 0;
+ switch (bpp) {
+ case 8:tmp = 0;break;
+ case 15:tmp = 5;break;
+ case 16:tmp = 1;break;
+ case 24:
+ case 32:tmp = 2;break;
+ }
+ writemmr(0x2120, 0xF0000000);
+ writemmr(0x2120, 0x40000000|tmp);
+ writemmr(0x2120, 0x80000000);
+ writemmr(0x2144, 0x00000000);
+ writemmr(0x2148, 0x00000000);
+ writemmr(0x2150, 0x00000000);
+ writemmr(0x2154, 0x00000000);
+ writemmr(0x2120, 0x60000000|(pitch<<16) |pitch);
+ writemmr(0x216C, 0x00000000);
+ writemmr(0x2170, 0x00000000);
+ writemmr(0x217C, 0x00000000);
+ writemmr(0x2120, 0x10000000);
+ writemmr(0x2130, (2047 << 16) | 2047);
+}
+
+static void image_wait_engine(void)
+{
+ while(readmmr(0x2164) & 0xF0000000);
+}
+
+static void image_fill_rect(__u32 x, __u32 y, __u32 w, __u32 h, __u32 c, __u32 rop)
+{
+ writemmr(0x2120,0x80000000);
+ writemmr(0x2120,0x90000000|ROP_S);
+
+ writemmr(0x2144,c);
+
+ writemmr(DR1,point(x,y));
+ writemmr(DR2,point(x+w-1,y+h-1));
+
+ writemmr(0x2124,0x80000000|3<<22|1<<10|1<<9);
+}
+
+static void image_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
+{
+ __u32 s1,s2,d1,d2;
+ int direction = 2;
+ s1 = point(x1,y1);
+ s2 = point(x1+w-1,y1+h-1);
+ d1 = point(x2,y2);
+ d2 = point(x2+w-1,y2+h-1);
+
+ if ((y1 > y2) || ((y1 == y2) && (x1 >x2)))
+ direction = 0;
+
+ writemmr(0x2120,0x80000000);
+ writemmr(0x2120,0x90000000|ROP_S);
+
+ writemmr(SR1,direction?s2:s1);
+ writemmr(SR2,direction?s1:s2);
+ writemmr(DR1,direction?d2:d1);
+ writemmr(DR2,direction?d1:d2);
+ writemmr(0x2124,0x80000000|1<<22|1<<10|1<<7|direction);
+}
+
+
+static struct accel_switch accel_image = {
+ image_init_accel,
+ image_wait_engine,
+ image_fill_rect,
+ image_copy_rect,
+};
+
+/*
+ * Accel functions called by the upper layers
+ */
+#ifdef CONFIG_FB_TRIDENT_ACCEL
+static void tridentfb_fillrect(struct fb_info * info, const struct fb_fillrect *fr)
+{
+ int bpp = info->var.bits_per_pixel;
+ int col;
+
+ switch (bpp) {
+ default:
+ case 8: col = fr->color;
+ break;
+ case 16: col = ((u32 *)(info->pseudo_palette))[fr->color];
+ break;
+ case 32: col = ((u32 *)(info->pseudo_palette))[fr->color];
+ break;
+ }
+
+ acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop);
+ acc->wait_engine();
+}
+static void tridentfb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
+{
+ acc->copy_rect(ca->sx,ca->sy,ca->dx,ca->dy,ca->width,ca->height);
+ acc->wait_engine();
+}
+#else /* !CONFIG_FB_TRIDENT_ACCEL */
+#define tridentfb_fillrect cfb_fillrect
+#define tridentfb_copyarea cfb_copyarea
+#endif /* CONFIG_FB_TRIDENT_ACCEL */
+
+
+/*
+ * Hardware access functions
+ */
+
+static inline unsigned char read3X4(int reg)
+{
+ struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
+ writeb(reg, par->io_virt + CRT + 4);
+ return readb( par->io_virt + CRT + 5);
+}
+
+static inline void write3X4(int reg, unsigned char val)
+{
+ struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
+ writeb(reg, par->io_virt + CRT + 4);
+ writeb(val, par->io_virt + CRT + 5);
+}
+
+static inline unsigned char read3C4(int reg)
+{
+ t_outb(reg, 0x3C4);
+ return t_inb(0x3C5);
+}
+
+static inline void write3C4(int reg, unsigned char val)
+{
+ t_outb(reg, 0x3C4);
+ t_outb(val, 0x3C5);
+}
+
+static inline unsigned char read3CE(int reg)
+{
+ t_outb(reg, 0x3CE);
+ return t_inb(0x3CF);
+}
+
+static inline void writeAttr(int reg, unsigned char val)
+{
+ readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A); //flip-flop to index
+ t_outb(reg, 0x3C0);
+ t_outb(val, 0x3C0);
+}
+
+static inline void write3CE(int reg, unsigned char val)
+{
+ t_outb(reg, 0x3CE);
+ t_outb(val, 0x3CF);
+}
+
+static inline void enable_mmio(void)
+{
+ /* Goto New Mode */
+ outb(0x0B, 0x3C4);
+ inb(0x3C5);
+
+ /* Unprotect registers */
+ outb(NewMode1, 0x3C4);
+ outb(0x80, 0x3C5);
+
+ /* Enable MMIO */
+ outb(PCIReg, 0x3D4);
+ outb(inb(0x3D5) | 0x01, 0x3D5);
+}
+
+
+#define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
+
+/* Return flat panel's maximum x resolution */
+static int __init get_nativex(void)
+{
+ int x,y,tmp;
+
+ if (nativex)
+ return nativex;
+
+ tmp = (read3CE(VertStretch) >> 4) & 3;
+
+ switch (tmp) {
+ case 0: x = 1280; y = 1024; break;
+ case 2: x = 1024; y = 768; break;
+ case 3: x = 800; y = 600; break;
+ case 4: x = 1400; y = 1050; break;
+ case 1:
+ default:x = 640; y = 480; break;
+ }
+
+ output("%dx%d flat panel found\n", x, y);
+ return x;
+}
+
+/* Set pitch */
+static void set_lwidth(int width)
+{
+ write3X4(Offset, width & 0xFF);
+ write3X4(AddColReg, (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >>4));
+}
+
+/* For resolutions smaller than FP resolution stretch */
+static void screen_stretch(void)
+{
+ if (chip_id != CYBERBLADEXPAi1)
+ write3CE(BiosReg,0);
+ else
+ write3CE(BiosReg,8);
+ write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 1);
+ write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 1);
+}
+
+/* For resolutions smaller than FP resolution center */
+static void screen_center(void)
+{
+ write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 0x80);
+ write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 0x80);
+}
+
+/* Address of first shown pixel in display memory */
+static void set_screen_start(int base)
+{
+ write3X4(StartAddrLow, base & 0xFF);
+ write3X4(StartAddrHigh, (base & 0xFF00) >> 8);
+ write3X4(CRTCModuleTest, (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11));
+ write3X4(CRTHiOrd, (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17));
+}
+
+/* Use 20.12 fixed-point for NTSC value and frequency calculation */
+#define calc_freq(n,m,k) ( ((unsigned long)0xE517 * (n+8) / ((m+2)*(1<<k))) >> 12 )
+
+/* Set dotclock frequency */
+static void set_vclk(int freq)
+{
+ int m,n,k;
+ int f,fi,d,di;
+ unsigned char lo=0,hi=0;
+
+ d = 20;
+ for(k = 2;k>=0;k--)
+ for(m = 0;m<63;m++)
+ for(n = 0;n<128;n++) {
+ fi = calc_freq(n,m,k);
+ if ((di = abs(fi - freq)) < d) {
+ d = di;
+ f = fi;
+ lo = n;
+ hi = (k<<6) | m;
+ }
+ }
+ if (chip3D) {
+ write3C4(ClockHigh,hi);
+ write3C4(ClockLow,lo);
+ } else {
+ outb(lo,0x43C8);
+ outb(hi,0x43C9);
+ }
+ debug("VCLK = %X %X\n",hi,lo);
+}
+
+/* Set number of lines for flat panels*/
+static void set_number_of_lines(int lines)
+{
+ int tmp = read3CE(CyberEnhance) & 0x8F;
+ if (lines > 1024)
+ tmp |= 0x50;
+ else if (lines > 768)
+ tmp |= 0x30;
+ else if (lines > 600)
+ tmp |= 0x20;
+ else if (lines > 480)
+ tmp |= 0x10;
+ write3CE(CyberEnhance, tmp);
+}
+
+/*
+ * If we see that FP is active we assume we have one.
+ * Otherwise we have a CRT display.User can override.
+ */
+static unsigned int __init get_displaytype(void)
+{
+ if (fp)
+ return DISPLAY_FP;
+ if (crt || !chipcyber)
+ return DISPLAY_CRT;
+ return (read3CE(FPConfig) & 0x10)?DISPLAY_FP:DISPLAY_CRT;
+}
+
+/* Try detecting the video memory size */
+static unsigned int __init get_memsize(void)
+{
+ unsigned char tmp, tmp2;
+ unsigned int k;
+
+ /* If memory size provided by user */
+ if (memsize)
+ k = memsize * Kb;
+ else
+ switch (chip_id) {
+ case CYBER9525DVD: k = 2560 * Kb; break;
+ default:
+ tmp = read3X4(SPR) & 0x0F;
+ switch (tmp) {
+
+ case 0x01: k = 512; break;
+ case 0x02: k = 6 * Mb; break; /* XP */
+ case 0x03: k = 1 * Mb; break;
+ case 0x04: k = 8 * Mb; break;
+ case 0x06: k = 10 * Mb; break; /* XP */
+ case 0x07: k = 2 * Mb; break;
+ case 0x08: k = 12 * Mb; break; /* XP */
+ case 0x0A: k = 14 * Mb; break; /* XP */
+ case 0x0C: k = 16 * Mb; break; /* XP */
+ case 0x0E: /* XP */
+
+ tmp2 = read3C4(0xC1);
+ switch (tmp2) {
+ case 0x00: k = 20 * Mb; break;
+ case 0x01: k = 24 * Mb; break;
+ case 0x10: k = 28 * Mb; break;
+ case 0x11: k = 32 * Mb; break;
+ default: k = 1 * Mb; break;
+ }
+ break;
+
+ case 0x0F: k = 4 * Mb; break;
+ default: k = 1 * Mb;
+ }
+ }
+
+ k -= memdiff * Kb;
+ output("framebuffer size = %d Kb\n", k/Kb);
+ return k;
+}
+
+/* See if we can handle the video mode described in var */
+static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ int bpp = var->bits_per_pixel;
+ debug("enter\n");
+
+ /* check color depth */
+ if (bpp == 24 )
+ bpp = var->bits_per_pixel = 32;
+ /* check whether resolution fits on panel and in memory*/
+ if (flatpanel && nativex && var->xres > nativex)
+ return -EINVAL;
+ if (var->xres * var->yres_virtual * bpp/8 > info->fix.smem_len)
+ return -EINVAL;
+
+ switch (bpp) {
+ case 8:
+ var->red.offset = 0;
+ var->green.offset = 0;
+ var->blue.offset = 0;
+ var->red.length = 6;
+ var->green.length = 6;
+ var->blue.length = 6;
+ break;
+ case 16:
+ var->red.offset = 11;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 6;
+ var->blue.length = 5;
+ break;
+ case 32:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+ debug("exit\n");
+
+ return 0;
+
+}
+/* Pan the display */
+static int tridentfb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ unsigned int offset;
+
+ debug("enter\n");
+ offset = (var->xoffset + (var->yoffset * var->xres))
+ * var->bits_per_pixel/32;
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+ set_screen_start(offset);
+ debug("exit\n");
+ return 0;
+}
+
+#define shadowmode_on() write3CE(CyberControl,read3CE(CyberControl) | 0x81)
+#define shadowmode_off() write3CE(CyberControl,read3CE(CyberControl) & 0x7E)
+
+/* Set the hardware to the requested video mode */
+static int tridentfb_set_par(struct fb_info *info)
+{
+ struct tridentfb_par * par = (struct tridentfb_par *)(info->par);
+ u32 htotal,hdispend,hsyncstart,hsyncend,hblankstart,hblankend,
+ vtotal,vdispend,vsyncstart,vsyncend,vblankstart,vblankend;
+ struct fb_var_screeninfo *var = &info->var;
+ int bpp = var->bits_per_pixel;
+ unsigned char tmp;
+ debug("enter\n");
+ htotal = (var->xres + var->left_margin + var->right_margin + var->hsync_len)/8 - 10;
+ hdispend = var->xres/8 - 1;
+ hsyncstart = (var->xres + var->right_margin)/8;
+ hsyncend = var->hsync_len/8;
+ hblankstart = hdispend + 1;
+ hblankend = htotal + 5;
+
+ vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len - 2;
+ vdispend = var->yres - 1;
+ vsyncstart = var->yres + var->lower_margin;
+ vsyncend = var->vsync_len;
+ vblankstart = var->yres;
+ vblankend = vtotal + 2;
+
+ enable_mmio();
+ crtc_unlock();
+ write3CE(CyberControl,8);
+
+ if (flatpanel && var->xres < nativex) {
+ /*
+ * on flat panels with native size larger
+ * than requested resolution decide whether
+ * we stretch or center
+ */
+ t_outb(0xEB,0x3C2);
+
+ shadowmode_on();
+
+ if (center)
+ screen_center();
+ else if (stretch)
+ screen_stretch();
+
+ } else {
+ t_outb(0x2B,0x3C2);
+ write3CE(CyberControl,8);
+ }
+
+ /* vertical timing values */
+ write3X4(CRTVTotal, vtotal & 0xFF);
+ write3X4(CRTVDispEnd, vdispend & 0xFF);
+ write3X4(CRTVSyncStart, vsyncstart & 0xFF);
+ write3X4(CRTVSyncEnd, (vsyncend & 0x0F));
+ write3X4(CRTVBlankStart, vblankstart & 0xFF);
+ write3X4(CRTVBlankEnd, 0/*p->vblankend & 0xFF*/);
+
+ /* horizontal timing values */
+ write3X4(CRTHTotal, htotal & 0xFF);
+ write3X4(CRTHDispEnd, hdispend & 0xFF);
+ write3X4(CRTHSyncStart, hsyncstart & 0xFF);
+ write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20)<<2));
+ write3X4(CRTHBlankStart, hblankstart & 0xFF);
+ write3X4(CRTHBlankEnd, 0/*(p->hblankend & 0x1F)*/);
+
+ /* higher bits of vertical timing values */
+ tmp = 0x10;
+ if (vtotal & 0x100) tmp |= 0x01;
+ if (vdispend & 0x100) tmp |= 0x02;
+ if (vsyncstart & 0x100) tmp |= 0x04;
+ if (vblankstart & 0x100) tmp |= 0x08;
+
+ if (vtotal & 0x200) tmp |= 0x20;
+ if (vdispend & 0x200) tmp |= 0x40;
+ if (vsyncstart & 0x200) tmp |= 0x80;
+ write3X4(CRTOverflow, tmp);
+
+ tmp = read3X4(CRTHiOrd) | 0x08; //line compare bit 10
+ if (vtotal & 0x400) tmp |= 0x80;
+ if (vblankstart & 0x400) tmp |= 0x40;
+ if (vsyncstart & 0x400) tmp |= 0x20;
+ if (vdispend & 0x400) tmp |= 0x10;
+ write3X4(CRTHiOrd, tmp);
+
+ tmp = 0;
+ if (htotal & 0x800) tmp |= 0x800 >> 11;
+ if (hblankstart & 0x800) tmp |= 0x800 >> 7;
+ write3X4(HorizOverflow, tmp);
+
+ tmp = 0x40;
+ if (vblankstart & 0x200) tmp |= 0x20;
+//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; //double scan for 200 line modes
+ write3X4(CRTMaxScanLine, tmp);
+
+ write3X4(CRTLineCompare,0xFF);
+ write3X4(CRTPRowScan,0);
+ write3X4(CRTModeControl,0xC3);
+
+ write3X4(LinearAddReg,0x20); //enable linear addressing
+
+ tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84:0x80;
+ write3X4(CRTCModuleTest,tmp); //enable access extended memory
+
+ write3X4(GraphEngReg, 0x80); //enable GE for text acceleration
+
+// if (info->var.accel_flags & FB_ACCELF_TEXT)
+//FIXME acc->init_accel(info->var.xres,bpp);
+
+ switch (bpp) {
+ case 8: tmp = 0x00; break;
+ case 16: tmp = 0x05; break;
+ case 24: tmp = 0x29; break;
+ case 32: tmp = 0x09;
+ }
+
+ write3X4(PixelBusReg, tmp);
+
+ tmp = 0x10;
+ if (chipcyber)
+ tmp |= 0x20;
+ write3X4(DRAMControl, tmp); //both IO,linear enable
+
+ write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40);
+ write3X4(Performance,0x20);
+ write3X4(PCIReg,0x07); //MMIO & PCI read and write burst enable
+
+ /* convert from picoseconds to MHz */
+ par->vclk = 1000000/info->var.pixclock;
+ if (bpp == 32)
+ par->vclk *=2;
+ set_vclk(par->vclk);
+
+ write3C4(0,3);
+ write3C4(1,1); //set char clock 8 dots wide
+ write3C4(2,0x0F); //enable 4 maps because needed in chain4 mode
+ write3C4(3,0);
+ write3C4(4,0x0E); //memory mode enable bitmaps ??
+
+ write3CE(MiscExtFunc,(bpp==32)?0x1A:0x12); //divide clock by 2 if 32bpp
+ //chain4 mode display and CPU path
+ write3CE(0x5,0x40); //no CGA compat,allow 256 col
+ write3CE(0x6,0x05); //graphics mode
+ write3CE(0x7,0x0F); //planes?
+
+ if (chip_id == CYBERBLADEXPAi1) {
+ /* This fixes snow-effect in 32 bpp */
+ write3X4(CRTHSyncStart,0x84);
+ }
+
+ writeAttr(0x10,0x41); //graphics mode and support 256 color modes
+ writeAttr(0x12,0x0F); //planes
+ writeAttr(0x13,0); //horizontal pel panning
+
+ //colors
+ for(tmp = 0;tmp < 0x10;tmp++)
+ writeAttr(tmp,tmp);
+ readb(par->io_virt + CRT + 0x0A); //flip-flop to index
+ t_outb(0x20, 0x3C0); //enable attr
+
+ switch (bpp) {
+ case 8: tmp = 0;break; //256 colors
+ case 15: tmp = 0x10;break;
+ case 16: tmp = 0x30;break; //hicolor
+ case 24: //truecolor
+ case 32: tmp = 0xD0;break;
+ }
+
+ t_inb(0x3C8);
+ t_inb(0x3C6);
+ t_inb(0x3C6);
+ t_inb(0x3C6);
+ t_inb(0x3C6);
+ t_outb(tmp,0x3C6);
+ t_inb(0x3C8);
+
+ if (flatpanel)
+ set_number_of_lines(info->var.yres);
+ set_lwidth(info->var.xres * bpp/(4*16));
+ info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+ info->fix.line_length = info->var.xres * (bpp >> 3);
+ info->cmap.len = (bpp == 8) ? 256: 16;
+ debug("exit\n");
+ return 0;
+}
+
+/* Set one color register */
+static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ int bpp = info->var.bits_per_pixel;
+
+ if (regno >= info->cmap.len)
+ return 1;
+
+
+ if (bpp==8) {
+ t_outb(0xFF,0x3C6);
+ t_outb(regno,0x3C8);
+
+ t_outb(red>>10,0x3C9);
+ t_outb(green>>10,0x3C9);
+ t_outb(blue>>10,0x3C9);
+
+ } else
+ if (bpp == 16) /* RGB 565 */
+ ((u32*)info->pseudo_palette)[regno] = (red & 0xF800) |
+ ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
+ else
+ if (bpp == 32) /* ARGB 8888 */
+ ((u32*)info->pseudo_palette)[regno] =
+ ((transp & 0xFF00) <<16) |
+ ((red & 0xFF00) << 8) |
+ ((green & 0xFF00)) |
+ ((blue & 0xFF00)>>8);
+
+// debug("exit\n");
+ return 0;
+}
+
+/* Try blanking the screen.For flat panels it does nothing */
+static int tridentfb_blank(int blank_mode, struct fb_info *info)
+{
+ unsigned char PMCont,DPMSCont;
+
+ debug("enter\n");
+ if (flatpanel)
+ return 0;
+ t_outb(0x04,0x83C8); /* Read DPMS Control */
+ PMCont = t_inb(0x83C6) & 0xFC;
+ DPMSCont = read3CE(PowerStatus) & 0xFC;
+ switch (blank_mode)
+ {
+ case FB_BLANK_UNBLANK:
+ /* Screen: On, HSync: On, VSync: On */
+ case FB_BLANK_NORMAL:
+ /* Screen: Off, HSync: On, VSync: On */
+ PMCont |= 0x03;
+ DPMSCont |= 0x00;
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ /* Screen: Off, HSync: Off, VSync: On */
+ PMCont |= 0x02;
+ DPMSCont |= 0x01;
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ /* Screen: Off, HSync: On, VSync: Off */
+ PMCont |= 0x02;
+ DPMSCont |= 0x02;
+ break;
+ case FB_BLANK_POWERDOWN:
+ /* Screen: Off, HSync: Off, VSync: Off */
+ PMCont |= 0x00;
+ DPMSCont |= 0x03;
+ break;
+ }
+
+ write3CE(PowerStatus,DPMSCont);
+ t_outb(4,0x83C8);
+ t_outb(PMCont,0x83C6);
+
+ debug("exit\n");
+
+ /* let fbcon do a softblank for us */
+ return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
+}
+
+static int __devinit trident_pci_probe(struct pci_dev * dev, const struct pci_device_id * id)
+{
+ int err;
+ unsigned char revision;
+
+ err = pci_enable_device(dev);
+ if (err)
+ return err;
+
+ chip_id = id->device;
+
+ /* If PCI id is 0x9660 then further detect chip type */
+
+ if (chip_id == TGUI9660) {
+ outb(RevisionID,0x3C4);
+ revision = inb(0x3C5);
+
+ switch (revision) {
+ case 0x22:
+ case 0x23: chip_id = CYBER9397;break;
+ case 0x2A: chip_id = CYBER9397DVD;break;
+ case 0x30:
+ case 0x33:
+ case 0x34:
+ case 0x35:
+ case 0x38:
+ case 0x3A:
+ case 0xB3: chip_id = CYBER9385;break;
+ case 0x40 ... 0x43: chip_id = CYBER9382;break;
+ case 0x4A: chip_id = CYBER9388;break;
+ default:break;
+ }
+ }
+
+ chip3D = is3Dchip(chip_id);
+ chipcyber = iscyber(chip_id);
+
+ if (is_xp(chip_id)) {
+ acc = &accel_xp;
+ } else
+ if (is_blade(chip_id)) {
+ acc = &accel_blade;
+ } else {
+ acc = &accel_image;
+ }
+
+ /* acceleration is on by default for 3D chips */
+ defaultaccel = chip3D && !noaccel;
+
+ fb_info.par = &default_par;
+
+ /* setup MMIO region */
+ tridentfb_fix.mmio_start = pci_resource_start(dev,1);
+ tridentfb_fix.mmio_len = chip3D ? 0x20000:0x10000;
+
+ if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
+ debug("request_region failed!\n");
+ return -1;
+ }
+
+ default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+
+ if (!default_par.io_virt) {
+ release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+ debug("ioremap failed\n");
+ return -1;
+ }
+
+ enable_mmio();
+
+ /* setup framebuffer memory */
+ tridentfb_fix.smem_start = pci_resource_start(dev,0);
+ tridentfb_fix.smem_len = get_memsize();
+
+ if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
+ debug("request_mem_region failed!\n");
+ return -1;
+ }
+
+ fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
+ tridentfb_fix.smem_len);
+
+ if (!fb_info.screen_base) {
+ release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
+ debug("ioremap failed\n");
+ return -1;
+ }
+
+ output("%s board found\n", pci_name(dev));
+#if 0
+ output("Trident board found : mem = %X,io = %X, mem_v = %X, io_v = %X\n",
+ tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt);
+#endif
+ displaytype = get_displaytype();
+
+ if(flatpanel)
+ nativex = get_nativex();
+
+ fb_info.fix = tridentfb_fix;
+ fb_info.fbops = &tridentfb_ops;
+
+
+ fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
+#ifdef CONFIG_FB_TRIDENT_ACCEL
+ fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
+#endif
+ fb_info.pseudo_palette = pseudo_pal;
+
+ if (!fb_find_mode(&default_var,&fb_info,mode,NULL,0,NULL,bpp))
+ return -EINVAL;
+ fb_alloc_cmap(&fb_info.cmap,256,0);
+ if (defaultaccel && acc)
+ default_var.accel_flags |= FB_ACCELF_TEXT;
+ else
+ default_var.accel_flags &= ~FB_ACCELF_TEXT;
+ default_var.activate |= FB_ACTIVATE_NOW;
+ fb_info.var = default_var;
+ fb_info.device = &dev->dev;
+ if (register_framebuffer(&fb_info) < 0) {
+ printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
+ return -EINVAL;
+ }
+ output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
+ fb_info.node, fb_info.fix.id,default_var.xres,
+ default_var.yres,default_var.bits_per_pixel);
+ return 0;
+}
+
+static void __devexit trident_pci_remove(struct pci_dev * dev)
+{
+ struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par;
+ unregister_framebuffer(&fb_info);
+ iounmap(par->io_virt);
+ iounmap(fb_info.screen_base);
+ release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
+ release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+}
+
+/* List of boards that we are trying to support */
+static struct pci_device_id trident_devices[] = {
+ {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci,trident_devices);
+
+static struct pci_driver tridentfb_pci_driver = {
+ .name = "tridentfb",
+ .id_table = trident_devices,
+ .probe = trident_pci_probe,
+ .remove = __devexit_p(trident_pci_remove)
+};
+
+/*
+ * Parse user specified options (`video=trident:')
+ * example:
+ * video=trident:800x600,bpp=16,noaccel
+ */
+#ifndef MODULE
+static int tridentfb_setup(char *options)
+{
+ char * opt;
+ if (!options || !*options)
+ return 0;
+ while((opt = strsep(&options,",")) != NULL ) {
+ if (!*opt) continue;
+ if (!strncmp(opt,"noaccel",7))
+ noaccel = 1;
+ else if (!strncmp(opt,"fp",2))
+ displaytype = DISPLAY_FP;
+ else if (!strncmp(opt,"crt",3))
+ displaytype = DISPLAY_CRT;
+ else if (!strncmp(opt,"bpp=",4))
+ bpp = simple_strtoul(opt+4,NULL,0);
+ else if (!strncmp(opt,"center",6))
+ center = 1;
+ else if (!strncmp(opt,"stretch",7))
+ stretch = 1;
+ else if (!strncmp(opt,"memsize=",8))
+ memsize = simple_strtoul(opt+8,NULL,0);
+ else if (!strncmp(opt,"memdiff=",8))
+ memdiff = simple_strtoul(opt+8,NULL,0);
+ else if (!strncmp(opt,"nativex=",8))
+ nativex = simple_strtoul(opt+8,NULL,0);
+ else
+ mode = opt;
+ }
+ return 0;
+}
+#endif
+
+static int __init tridentfb_init(void)
+{
+#ifndef MODULE
+ char *option = NULL;
+
+ if (fb_get_options("tridentfb", &option))
+ return -ENODEV;
+ tridentfb_setup(option);
+#endif
+ output("Trident framebuffer %s initializing\n", VERSION);
+ return pci_register_driver(&tridentfb_pci_driver);
+}
+
+static void __exit tridentfb_exit(void)
+{
+ pci_unregister_driver(&tridentfb_pci_driver);
+}
+
+static struct fb_ops tridentfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_setcolreg = tridentfb_setcolreg,
+ .fb_pan_display = tridentfb_pan_display,
+ .fb_blank = tridentfb_blank,
+ .fb_check_var = tridentfb_check_var,
+ .fb_set_par = tridentfb_set_par,
+ .fb_fillrect = tridentfb_fillrect,
+ .fb_copyarea= tridentfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = soft_cursor,
+};
+
+module_init(tridentfb_init);
+module_exit(tridentfb_exit);
+
+MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
+MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
+MODULE_LICENSE("GPL");
+
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-13 21:14:58 +0000