+++ /dev/null
-/*
- * Frame buffer driver for Trident Cyberblade/i1 graphics core
- *
- * Copyright 2005 Knut Petersen <Knut_Petersen@t-online.de>
- *
- * CREDITS:
- * tridentfb.c by Jani Monoses
- * see files above for further credits
- *
- */
-
-#define CYBLAFB_DEBUG 0
-#define CYBLAFB_KD_GRAPHICS_QUIRK 1
-
-#define CYBLAFB_PIXMAPSIZE 8192
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/types.h>
-#include <video/cyblafb.h>
-
-#define VERSION "0.62"
-
-struct cyblafb_par {
- u32 pseudo_pal[16];
- struct fb_ops ops;
-};
-
-static struct fb_fix_screeninfo cyblafb_fix __devinitdata = {
- .id = "CyBla",
- .type = FB_TYPE_PACKED_PIXELS,
- .xpanstep = 1,
- .ypanstep = 1,
- .ywrapstep = 1,
- .visual = FB_VISUAL_PSEUDOCOLOR,
- .accel = FB_ACCEL_NONE,
-};
-
-static char *mode __devinitdata = NULL;
-static int bpp __devinitdata = 8;
-static int ref __devinitdata = 75;
-static int fp __devinitdata;
-static int crt __devinitdata;
-static int memsize __devinitdata;
-
-static int basestride;
-static int vesafb;
-static int nativex;
-static int center;
-static int stretch;
-static int pciwb = 1;
-static int pcirb = 1;
-static int pciwr = 1;
-static int pcirr = 1;
-static int disabled;
-static int verbosity;
-static int displaytype;
-
-static void __iomem *io_virt; // iospace virtual memory address
-
-module_param(mode, charp, 0);
-module_param(bpp, int, 0);
-module_param(ref, int, 0);
-module_param(fp, int, 0);
-module_param(crt, int, 0);
-module_param(nativex, int, 0);
-module_param(center, int, 0);
-module_param(stretch, int, 0);
-module_param(pciwb, int, 0);
-module_param(pcirb, int, 0);
-module_param(pciwr, int, 0);
-module_param(pcirr, int, 0);
-module_param(memsize, int, 0);
-module_param(verbosity, int, 0);
-
-//=========================================
-//
-// Well, we have to fix the upper layers.
-// Until this has been done, we work around
-// the bugs.
-//
-//=========================================
-
-#if (CYBLAFB_KD_GRAPHICS_QUIRK && CYBLAFB_DEBUG)
- if (disabled) { \
- printk("********\n");\
- dump_stack();\
- return val;\
- }
-
-#elif CYBLAFB_KD_GRAPHICS_QUIRK
-#define KD_GRAPHICS_RETURN(val)\
- if (disabled) {\
- return val;\
- }
-#else
-#define KD_GRAPHICS_RETURN(val)
-#endif
-
-//=========================================
-//
-// Port access macros for memory mapped io
-//
-//=========================================
-
-#define out8(r, v) writeb(v, io_virt + r)
-#define out32(r, v) writel(v, io_virt + r)
-#define in8(r) readb(io_virt + r)
-#define in32(r) readl(io_virt + r)
-
-//======================================
-//
-// Hardware access inline functions
-//
-//======================================
-
-static inline u8 read3X4(u32 reg)
-{
- out8(0x3D4, reg);
- return in8(0x3D5);
-}
-
-static inline u8 read3C4(u32 reg)
-{
- out8(0x3C4, reg);
- return in8(0x3C5);
-}
-
-static inline u8 read3CE(u32 reg)
-{
- out8(0x3CE, reg);
- return in8(0x3CF);
-}
-
-static inline void write3X4(u32 reg, u8 val)
-{
- out8(0x3D4, reg);
- out8(0x3D5, val);
-}
-
-static inline void write3C4(u32 reg, u8 val)
-{
- out8(0x3C4, reg);
- out8(0x3C5, val);
-}
-
-static inline void write3CE(u32 reg, u8 val)
-{
- out8(0x3CE, reg);
- out8(0x3CF, val);
-}
-
-static inline void write3C0(u32 reg, u8 val)
-{
- in8(0x3DA); // read to reset index
- out8(0x3C0, reg);
- out8(0x3C0, val);
-}
-
-//=================================================
-//
-// Enable memory mapped io and unprotect registers
-//
-//=================================================
-
-static void enable_mmio(void)
-{
- u8 tmp;
-
- outb(0x0B, 0x3C4);
- inb(0x3C5); // Set NEW mode
- outb(SR0E, 0x3C4); // write enable a lot of extended ports
- outb(0x80, 0x3C5);
-
- outb(SR11, 0x3C4); // write enable those extended ports that
- outb(0x87, 0x3C5); // are not affected by SR0E_New
-
- outb(CR1E, 0x3d4); // clear write protect bit for port 0x3c2
- tmp = inb(0x3d5) & 0xBF;
- outb(CR1E, 0x3d4);
- outb(tmp, 0x3d5);
-
- outb(CR39, 0x3D4);
- outb(inb(0x3D5) | 0x01, 0x3D5); // Enable mmio
-}
-
-//=================================================
-//
-// Set pixel clock VCLK1
-// - multipliers set elswhere
-// - freq in units of 0.01 MHz
-//
-// Hardware bug: SR18 >= 250 is broken for the
-// cyberblade/i1
-//
-//=================================================
-
-static void set_vclk(struct cyblafb_par *par, int freq)
-{
- u32 m, n, k;
- int f, fi, d, di;
- u8 lo = 0, hi = 0;
-
- d = 2000;
- k = freq >= 10000 ? 0 : freq >= 5000 ? 1 : freq >= 2500 ? 2 : 3;
- for (m = 0; m < 64; m++)
- for (n = 0; n < 250; n++) {
- fi = (int)(((5864727 * (n + 8)) /
- ((m + 2) * (1 << k))) >> 12);
- if ((di = abs(fi - freq)) < d) {
- d = di;
- f = fi;
- lo = (u8) n;
- hi = (u8) ((k << 6) | m);
- }
- }
- write3C4(SR19, hi);
- write3C4(SR18, lo);
- if (verbosity > 0)
- output("pixclock = %d.%02d MHz, k/m/n %x %x %x\n",
- freq / 100, freq % 100, (hi & 0xc0) >> 6, hi & 0x3f, lo);
-}
-
-//================================================
-//
-// Cyberblade specific Graphics Engine (GE) setup
-//
-//================================================
-
-static void cyblafb_setup_GE(int pitch, int bpp)
-{
- KD_GRAPHICS_RETURN();
-
- switch (bpp) {
- case 8:
- basestride = ((pitch >> 3) << 20) | (0 << 29);
- break;
- case 15:
- basestride = ((pitch >> 3) << 20) | (5 << 29);
- break;
- case 16:
- basestride = ((pitch >> 3) << 20) | (1 << 29);
- break;
- case 24:
- case 32:
- basestride = ((pitch >> 3) << 20) | (2 << 29);
- break;
- }
-
- write3X4(CR36, 0x90); // reset GE
- write3X4(CR36, 0x80); // enable GE
- out32(GE24, 1 << 7); // reset all GE pointers by toggling
- out32(GE24, 0); // d7 of GE24
- write3X4(CR2D, 0x00); // GE Timinigs, no delays
- out32(GE6C, 0); // Pattern and Style, p 129, ok
-}
-
-//=====================================================================
-//
-// Cyberblade specific syncing
-//
-// A timeout might be caused by disabled mmio.
-// Cause:
-// - bit CR39 & 1 == 0 upon return, X trident driver bug
-// - kdm bug (KD_GRAPHICS not set on first switch)
-// - kernel design flaw (it believes in the correctness
-// of kdm/X
-// First we try to sync ignoring that problem, as most of the
-// time that will succeed immediately and the enable_mmio()
-// would only degrade performance.
-//
-//=====================================================================
-
-static int cyblafb_sync(struct fb_info *info)
-{
- u32 status, i = 100000;
-
- KD_GRAPHICS_RETURN(0);
-
- while (((status = in32(GE20)) & 0xFe800000) && i != 0)
- i--;
-
- if (i == 0) {
- enable_mmio();
- i = 1000000;
- while (((status = in32(GE20)) & 0xFA800000) && i != 0)
- i--;
- if (i == 0) {
- output("GE Timeout, status: %x\n", status);
- if (status & 0x80000000)
- output("Bresenham Engine : Busy\n");
- if (status & 0x40000000)
- output("Setup Engine : Busy\n");
- if (status & 0x20000000)
- output("SP / DPE : Busy\n");
- if (status & 0x10000000)
- output("Memory Interface : Busy\n");
- if (status & 0x08000000)
- output("Com Lst Proc : Busy\n");
- if (status & 0x04000000)
- output("Block Write : Busy\n");
- if (status & 0x02000000)
- output("Command Buffer : Full\n");
- if (status & 0x01000000)
- output("RESERVED : Busy\n");
- if (status & 0x00800000)
- output("PCI Write Buffer : Busy\n");
- cyblafb_setup_GE(info->var.xres,
- info->var.bits_per_pixel);
- }
- }
-
- return 0;
-}
-
-//==============================
-//
-// Cyberblade specific fillrect
-//
-//==============================
-
-static void cyblafb_fillrect(struct fb_info *info, const struct fb_fillrect *fr)
-{
- u32 bpp = info->var.bits_per_pixel, col, desty, height;
-
- KD_GRAPHICS_RETURN();
-
- switch (bpp) {
- default:
- case 8:
- col = fr->color;
- col |= col << 8;
- col |= col << 16;
- break;
- case 16:
- col = ((u32 *) (info->pseudo_palette))[fr->color];
- col |= col << 16;
- break;
- case 32:
- col = ((u32 *) (info->pseudo_palette))[fr->color];
- break;
- }
-
- desty = fr->dy;
- height = fr->height;
- while (height) {
- out32(GEB8, basestride | ((desty * info->var.xres_virtual *
- bpp) >> 6));
- out32(GE60, col);
- out32(GE48, fr->rop ? 0x66 : ROP_S);
- out32(GE44, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
- out32(GE08, point(fr->dx, 0));
- out32(GE0C, point(fr->dx + fr->width - 1,
- height > 4096 ? 4095 : height - 1));
- if (likely(height <= 4096))
- return;
- desty += 4096;
- height -= 4096;
- }
-}
-
-//================================================
-//
-// Cyberblade specific copyarea
-//
-// This function silently assumes that it never
-// will be called with width or height exceeding
-// 4096.
-//
-//================================================
-
-static void cyblafb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
-{
- u32 s1, s2, d1, d2, direction;
-
- KD_GRAPHICS_RETURN();
-
- s1 = point(ca->sx, 0);
- s2 = point(ca->sx + ca->width - 1, ca->height - 1);
- d1 = point(ca->dx, 0);
- d2 = point(ca->dx + ca->width - 1, ca->height - 1);
-
- if ((ca->sy > ca->dy) || ((ca->sy == ca->dy) && (ca->sx > ca->dx)))
- direction = 0;
- else
- direction = 2;
-
- out32(GEB8, basestride | ((ca->dy * info->var.xres_virtual *
- info->var.bits_per_pixel) >> 6));
- out32(GEC8, basestride | ((ca->sy * info->var.xres_virtual *
- info->var.bits_per_pixel) >> 6));
- out32(GE44, 0xa0000000 | 1 << 19 | 1 << 2 | direction);
- out32(GE00, direction ? s2 : s1);
- out32(GE04, direction ? s1 : s2);
- out32(GE08, direction ? d2 : d1);
- out32(GE0C, direction ? d1 : d2);
-}
-
-//=======================================================================
-//
-// Cyberblade specific imageblit
-//
-// Accelerated for the most usual case, blitting 1 - bit deep
-// character images. Everything else is passed to the generic imageblit
-// unless it is so insane that it is better to printk an alert.
-//
-// Hardware bug: _Never_ blit across pixel column 2048, that will lock
-// the system. We split those blit requests into three blitting
-// operations.
-//
-//=======================================================================
-
-static void cyblafb_imageblit(struct fb_info *info,
- const struct fb_image *image)
-{
- u32 fgcol, bgcol;
- u32 *pd = (u32 *) image->data;
- u32 bpp = info->var.bits_per_pixel;
-
- KD_GRAPHICS_RETURN();
-
- // Used only for drawing the penguine (image->depth > 1)
- if (image->depth != 1) {
- cfb_imageblit(info, image);
- return;
- }
- // That should never happen, but it would be fatal
- if (image->width == 0 || image->height == 0) {
- output("imageblit: width/height 0 detected\n");
- return;
- }
-
- if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
- info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
- fgcol = ((u32 *) (info->pseudo_palette))[image->fg_color];
- bgcol = ((u32 *) (info->pseudo_palette))[image->bg_color];
- } else {
- fgcol = image->fg_color;
- bgcol = image->bg_color;
- }
-
- switch (bpp) {
- case 8:
- fgcol |= fgcol << 8;
- bgcol |= bgcol << 8;
- case 16:
- fgcol |= fgcol << 16;
- bgcol |= bgcol << 16;
- default:
- break;
- }
-
- out32(GEB8, basestride | ((image->dy * info->var.xres_virtual *
- bpp) >> 6));
- out32(GE60, fgcol);
- out32(GE64, bgcol);
-
- if (!(image->dx < 2048 && (image->dx + image->width - 1) >= 2048)) {
- u32 dds = ((image->width + 31) >> 5) * image->height;
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx, 0));
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- while (dds--)
- out32(GE9C, *pd++);
- } else {
- int i, j;
- u32 ddstotal = (image->width + 31) >> 5;
- u32 ddsleft = (2048 - image->dx + 31) >> 5;
- u32 skipleft = ddstotal - ddsleft;
-
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx, 0));
- out32(GE0C, point(2048 - 1, image->height - 1));
- for (i = 0; i < image->height; i++) {
- for (j = 0; j < ddsleft; j++)
- out32(GE9C, *pd++);
- pd += skipleft;
- }
-
- if (image->dx % 32) {
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(2048, 0));
- if (image->width > ddsleft << 5)
- out32(GE0C, point(image->dx + (ddsleft << 5) -
- 1, image->height - 1));
- else
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- pd = ((u32 *) image->data) + ddstotal - skipleft - 1;
- for (i = 0; i < image->height; i++) {
- out32(GE9C, swab32(swab32(*pd) << ((32 -
- (image->dx & 31)) & 31)));
- pd += ddstotal;
- }
- }
-
- if (skipleft) {
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx + (ddsleft << 5), 0));
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- pd = (u32 *) image->data;
- for (i = 0; i < image->height; i++) {
- pd += ddsleft;
- for (j = 0; j < skipleft; j++)
- out32(GE9C, *pd++);
- }
- }
- }
-}
-
-//==========================================================
-//
-// Check if video mode is acceptable. We change var->??? if
-// video mode is slightly off or return error otherwise.
-// info->??? must not be changed!
-//
-//==========================================================
-
-static int cyblafb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- int bpp = var->bits_per_pixel;
-
- //
- // we try to support 8, 16, 24 and 32 bpp modes,
- // default to 8
- //
- // there is a 24 bpp mode, but for now we change requests to 32 bpp
- // (This is what tridentfb does ... will be changed in the future)
- //
- //
- if (bpp % 8 != 0 || bpp < 8 || bpp > 32)
- bpp = 8;
- if (bpp == 24)
- bpp = var->bits_per_pixel = 32;
-
- //
- // interlaced modes are broken, fail if one is requested
- //
- if (var->vmode & FB_VMODE_INTERLACED)
- return -EINVAL;
-
- //
- // fail if requested resolution is higher than physical
- // flatpanel resolution
- //
- if ((displaytype == DISPLAY_FP) && nativex && var->xres > nativex)
- return -EINVAL;
-
- //
- // we do not allow vclk to exceed 230 MHz. If the requested
- // vclk is too high, we default to 200 MHz
- //
- if ((bpp == 32 ? 200000000 : 100000000) / var->pixclock > 23000)
- var->pixclock = (bpp == 32 ? 200000000 : 100000000) / 20000;
-
- //
- // enforce (h|v)sync_len limits
- //
- var->hsync_len &= ~7;
- if(var->hsync_len > 248)
- var->hsync_len = 248;
-
- var->vsync_len &= 15;
-
- //
- // Enforce horizontal and vertical hardware limits.
- // 1600x1200 is mentioned as a maximum, but higher resolutions could
- // work with slow refresh, small margins and short sync.
- //
- var->xres &= ~7;
-
- if (((var->xres + var->left_margin + var->right_margin +
- var->hsync_len) > (bpp == 32 ? 2040 : 4088)) ||
- ((var->yres + var->upper_margin + var->lower_margin +
- var->vsync_len) > 2047))
- return -EINVAL;
-
- if ((var->xres > 1600) || (var->yres > 1200))
- output("Mode %dx%d exceeds documented limits.\n",
- var->xres, var->yres);
- //
- // try to be smart about (x|y)res_virtual problems.
- //
- if (var->xres > var->xres_virtual)
- var->xres_virtual = var->xres;
- if (var->yres > var->yres_virtual)
- var->yres_virtual = var->yres;
-
- if (bpp == 8 || bpp == 16) {
- if (var->xres_virtual > 4088)
- var->xres_virtual = 4088;
- } else {
- if (var->xres_virtual > 2040)
- var->xres_virtual = 2040;
- }
- var->xres_virtual &= ~7;
- while (var->xres_virtual * var->yres_virtual * bpp / 8 >
- info->fix.smem_len) {
- if (var->yres_virtual > var->yres)
- var->yres_virtual--;
- else if (var->xres_virtual > var->xres)
- var->xres_virtual -= 8;
- else
- 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;
- }
-
- return 0;
-}
-
-//=====================================================================
-//
-// Pan the display
-//
-// The datasheets defines crt start address to be 20 bits wide and
-// to be programmed to CR0C, CR0D, CR1E and CR27. Actually there is
-// CR2B[5] as an undocumented extension bit. Epia BIOS 2.07 does use
-// it, so it is also safe to be used here. BTW: datasheet CR0E on page
-// 90 really is CR1E, the real CRE is documented on page 72.
-//
-// BUT:
-//
-// As of internal version 0.60 we do not use vga panning any longer.
-// Vga panning did not allow us the use of all available video memory
-// and thus prevented ywrap scrolling. We do use the "right view"
-// register now.
-//
-//
-//=====================================================================
-
-static int cyblafb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- KD_GRAPHICS_RETURN(0);
-
- info->var.xoffset = var->xoffset;
- info->var.yoffset = var->yoffset;
- out32(GE10, 0x80000000 | ((var->xoffset + (var->yoffset *
- var->xres_virtual)) * var->bits_per_pixel / 32));
- return 0;
-}
-
-//============================================
-//
-// This will really help in case of a bug ...
-// dump most gaphics core registers.
-//
-//============================================
-
-static void regdump(struct cyblafb_par *par)
-{
- int i;
-
- if (verbosity < 2)
- return;
-
- printk("\n");
- for (i = 0; i <= 0xff; i++) {
- outb(i, 0x3d4);
- printk("CR%02x=%02x ", i, inb(0x3d5));
- if (i % 16 == 15)
- printk("\n");
- }
-
- outb(0x30, 0x3ce);
- outb(inb(0x3cf) | 0x40, 0x3cf);
- for (i = 0; i <= 0x1f; i++) {
- if (i == 0 || (i > 2 && i < 8) || i == 0x10 || i == 0x11
- || i == 0x16) {
- outb(i, 0x3d4);
- printk("CR%02x=%02x ", i, inb(0x3d5));
- } else
- printk("------- ");
- if (i % 16 == 15)
- printk("\n");
- }
- outb(0x30, 0x3ce);
- outb(inb(0x3cf) & 0xbf, 0x3cf);
-
- printk("\n");
- for (i = 0; i <= 0x7f; i++) {
- outb(i, 0x3ce);
- printk("GR%02x=%02x ", i, inb(0x3cf));
- if (i % 16 == 15)
- printk("\n");
- }
-
- printk("\n");
- for (i = 0; i <= 0xff; i++) {
- outb(i, 0x3c4);
- printk("SR%02x=%02x ", i, inb(0x3c5));
- if (i % 16 == 15)
- printk("\n");
- }
-
- printk("\n");
- for (i = 0; i <= 0x1F; i++) {
- inb(0x3da); // next access is index!
- outb(i, 0x3c0);
- printk("AR%02x=%02x ", i, inb(0x3c1));
- if (i % 16 == 15)
- printk("\n");
- }
- printk("\n");
-
- inb(0x3DA); // reset internal flag to 3c0 index
- outb(0x20, 0x3C0); // enable attr
-
- return;
-}
-
-//=======================================================================
-//
-// Save State
-//
-// This function is called while a switch to KD_TEXT is in progress,
-// before any of the other functions are called.
-//
-//=======================================================================
-
-static void cyblafb_save_state(struct fb_info *info)
-{
- struct cyblafb_par *par = info->par;
- if (verbosity > 0)
- output("Switching to KD_TEXT\n");
- disabled = 0;
- regdump(par);
- enable_mmio();
- return;
-}
-
-//=======================================================================
-//
-// Restore State
-//
-// This function is called while a switch to KD_GRAPHICS is in progress,
-// We have to turn on vga style panning registers again because the
-// trident driver of X does not know about GE10.
-//
-//=======================================================================
-
-static void cyblafb_restore_state(struct fb_info *info)
-{
- if (verbosity > 0)
- output("Switching to KD_GRAPHICS\n");
- out32(GE10, 0);
- disabled = 1;
- return;
-}
-
-//======================================
-//
-// Set hardware to requested video mode
-//
-//======================================
-
-static int cyblafb_set_par(struct fb_info *info)
-{
- struct cyblafb_par *par = info->par;
- u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart,
- hblankend, preendfetch, vtotal, vdispend, vsyncstart,
- vsyncend, vblankstart, vblankend;
- struct fb_var_screeninfo *var = &info->var;
- int bpp = var->bits_per_pixel;
- int i;
-
- KD_GRAPHICS_RETURN(0);
-
- if (verbosity > 0)
- output("Switching to new mode: "
- "fbset -g %d %d %d %d %d -t %d %d %d %d %d %d %d\n",
- var->xres, var->yres, var->xres_virtual,
- var->yres_virtual, var->bits_per_pixel, var->pixclock,
- var->left_margin, var->right_margin, var->upper_margin,
- var->lower_margin, var->hsync_len, var->vsync_len);
-
- htotal = (var->xres + var->left_margin + var->right_margin +
- var->hsync_len) / 8 - 5;
- hdispend = var->xres / 8 - 1;
- hsyncstart = (var->xres + var->right_margin) / 8;
- hsyncend = var->hsync_len / 8;
- hblankstart = hdispend + 1;
- hblankend = htotal + 3; // should be htotal + 5, bios does it this way
- preendfetch = ((var->xres >> 3) + 1) * ((bpp + 1) >> 3);
-
- vtotal = var->yres + var->upper_margin + var->lower_margin +
- var->vsync_len - 2;
- vdispend = var->yres - 1;
- vsyncstart = var->yres + var->lower_margin;
- vblankstart = var->yres;
- vblankend = vtotal; // should be vtotal + 2, but bios does it this way
- vsyncend = var->vsync_len;
-
- enable_mmio(); // necessary! ... check X ...
-
- write3X4(CR11, read3X4(CR11) & 0x7F); // unlock cr00 .. cr07
-
- write3CE(GR30, 8);
-
- if ((displaytype == DISPLAY_FP) && var->xres < nativex) {
-
- // stretch or center ?
-
- out8(0x3C2, 0xEB);
-
- write3CE(GR30, read3CE(GR30) | 0x81); // shadow mode on
-
- if (center) {
- write3CE(GR52, (read3CE(GR52) & 0x7C) | 0x80);
- write3CE(GR53, (read3CE(GR53) & 0x7C) | 0x80);
- } else if (stretch) {
- write3CE(GR5D, 0);
- write3CE(GR52, (read3CE(GR52) & 0x7C) | 1);
- write3CE(GR53, (read3CE(GR53) & 0x7C) | 1);
- }
-
- } else {
- out8(0x3C2, 0x2B);
- write3CE(GR30, 8);
- }
-
- //
- // Setup CRxx regs
- //
-
- write3X4(CR00, htotal & 0xFF);
- write3X4(CR01, hdispend & 0xFF);
- write3X4(CR02, hblankstart & 0xFF);
- write3X4(CR03, hblankend & 0x1F);
- write3X4(CR04, hsyncstart & 0xFF);
- write3X4(CR05, (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
- write3X4(CR06, vtotal & 0xFF);
- write3X4(CR07, (vtotal & 0x100) >> 8 |
- (vdispend & 0x100) >> 7 |
- (vsyncstart & 0x100) >> 6 |
- (vblankstart & 0x100) >> 5 |
- 0x10 |
- (vtotal & 0x200) >> 4 |
- (vdispend & 0x200) >> 3 | (vsyncstart & 0x200) >> 2);
- write3X4(CR08, 0);
- write3X4(CR09, (vblankstart & 0x200) >> 4 | 0x40 | // FIX !!!
- ((info->var.vmode & FB_VMODE_DOUBLE) ? 0x80 : 0));
- write3X4(CR0A, 0); // Init to some reasonable default
- write3X4(CR0B, 0); // Init to some reasonable default
- write3X4(CR0C, 0); // Offset 0
- write3X4(CR0D, 0); // Offset 0
- write3X4(CR0E, 0); // Init to some reasonable default
- write3X4(CR0F, 0); // Init to some reasonable default
- write3X4(CR10, vsyncstart & 0xFF);
- write3X4(CR11, (vsyncend & 0x0F));
- write3X4(CR12, vdispend & 0xFF);
- write3X4(CR13, ((info->var.xres_virtual * bpp) / (4 * 16)) & 0xFF);
- write3X4(CR14, 0x40); // double word mode
- write3X4(CR15, vblankstart & 0xFF);
- write3X4(CR16, vblankend & 0xFF);
- write3X4(CR17, 0xE3);
- write3X4(CR18, 0xFF);
- // CR19: needed for interlaced modes ... ignore it for now
- write3X4(CR1A, 0x07); // Arbitration Control Counter 1
- write3X4(CR1B, 0x07); // Arbitration Control Counter 2
- write3X4(CR1C, 0x07); // Arbitration Control Counter 3
- write3X4(CR1D, 0x00); // Don't know, doesn't hurt ; -)
- write3X4(CR1E, (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80);
- // CR1F: do not set, contains BIOS info about memsize
- write3X4(CR20, 0x20); // enabe wr buf, disable 16bit planar mode
- write3X4(CR21, 0x20); // enable linear memory access
- // CR22: RO cpu latch readback
- // CR23: ???
- // CR24: RO AR flag state
- // CR25: RAMDAC rw timing, pclk buffer tristate control ????
- // CR26: ???
- write3X4(CR27, (vdispend & 0x400) >> 6 |
- (vsyncstart & 0x400) >> 5 |
- (vblankstart & 0x400) >> 4 |
- (vtotal & 0x400) >> 3 |
- 0x8);
- // CR28: ???
- write3X4(CR29, (read3X4(CR29) & 0xCF) | ((((info->var.xres_virtual *
- bpp) / (4 * 16)) & 0x300) >> 4));
- write3X4(CR2A, read3X4(CR2A) | 0x40);
- write3X4(CR2B, (htotal & 0x100) >> 8 |
- (hdispend & 0x100) >> 7 |
- // (0x00 & 0x100) >> 6 | hinterlace para bit 8 ???
- (hsyncstart & 0x100) >> 5 |
- (hblankstart & 0x100) >> 4);
- // CR2C: ???
- // CR2D: initialized in cyblafb_setup_GE()
- write3X4(CR2F, 0x92); // conservative, better signal quality
- // CR30: reserved
- // CR31: reserved
- // CR32: reserved
- // CR33: reserved
- // CR34: disabled in CR36
- // CR35: disabled in CR36
- // CR36: initialized in cyblafb_setup_GE
- // CR37: i2c, ignore for now
- write3X4(CR38, (bpp == 8) ? 0x00 : //
- (bpp == 16) ? 0x05 : // highcolor
- (bpp == 24) ? 0x29 : // packed 24bit truecolor
- (bpp == 32) ? 0x09 : 0); // truecolor, 16 bit pixelbus
- write3X4(CR39, 0x01 | // MMIO enable
- (pcirb ? 0x02 : 0) | // pci read burst enable
- (pciwb ? 0x04 : 0)); // pci write burst enable
- write3X4(CR55, 0x1F | // pci clocks * 2 for STOP# during 1st data phase
- (pcirr ? 0x40 : 0) | // pci read retry enable
- (pciwr ? 0x80 : 0)); // pci write retry enable
- write3X4(CR56, preendfetch >> 8 < 2 ? (preendfetch >> 8 & 0x01) | 2
- : 0);
- write3X4(CR57, preendfetch >> 8 < 2 ? preendfetch & 0xff : 0);
- write3X4(CR58, 0x82); // Bios does this .... don't know more
- //
- // Setup SRxx regs
- //
- write3C4(SR00, 3);
- write3C4(SR01, 1); //set char clock 8 dots wide
- write3C4(SR02, 0x0F); //enable 4 maps needed in chain4 mode
- write3C4(SR03, 0); //no character map select
- write3C4(SR04, 0x0E); //memory mode: ext mem, even, chain4
-
- out8(0x3C4, 0x0b);
- in8(0x3C5); // Set NEW mode
- write3C4(SR0D, 0x00); // test ... check
-
- set_vclk(par, (bpp == 32 ? 200000000 : 100000000)
- / info->var.pixclock); //SR18, SR19
-
- //
- // Setup GRxx regs
- //
- write3CE(GR00, 0x00); // test ... check
- write3CE(GR01, 0x00); // test ... check
- write3CE(GR02, 0x00); // test ... check
- write3CE(GR03, 0x00); // test ... check
- write3CE(GR04, 0x00); // test ... check
- write3CE(GR05, 0x40); // no CGA compat, allow 256 col
- write3CE(GR06, 0x05); // graphics mode
- write3CE(GR07, 0x0F); // planes?
- write3CE(GR08, 0xFF); // test ... check
- write3CE(GR0F, (bpp == 32) ? 0x1A : 0x12); // vclk / 2 if 32bpp, chain4
- write3CE(GR20, 0xC0); // test ... check
- write3CE(GR2F, 0xA0); // PCLK = VCLK, no skew,
-
- //
- // Setup ARxx regs
- //
- for (i = 0; i < 0x10; i++) // set AR00 .. AR0f
- write3C0(i, i);
- write3C0(AR10, 0x41); // graphics mode and support 256 color modes
- write3C0(AR12, 0x0F); // planes
- write3C0(AR13, 0); // horizontal pel panning
- in8(0x3DA); // reset internal flag to 3c0 index
- out8(0x3C0, 0x20); // enable attr
-
- //
- // Setup hidden RAMDAC command register
- //
- in8(0x3C8); // these reads are
- in8(0x3C6); // necessary to
- in8(0x3C6); // unmask the RAMDAC
- in8(0x3C6); // command reg, otherwise
- in8(0x3C6); // we would write the pixelmask reg!
- out8(0x3C6, (bpp == 8) ? 0x00 : // 256 colors
- (bpp == 15) ? 0x10 : //
- (bpp == 16) ? 0x30 : // hicolor
- (bpp == 24) ? 0xD0 : // truecolor
- (bpp == 32) ? 0xD0 : 0); // truecolor
- in8(0x3C8);
-
- //
- // GR31 is not mentioned in the datasheet
- //
- if (displaytype == DISPLAY_FP)
- write3CE(GR31, (read3CE(GR31) & 0x8F) |
- ((info->var.yres > 1024) ? 0x50 :
- (info->var.yres > 768) ? 0x30 :
- (info->var.yres > 600) ? 0x20 :
- (info->var.yres > 480) ? 0x10 : 0));
-
- info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR
- : FB_VISUAL_TRUECOLOR;
- info->fix.line_length = info->var.xres_virtual * (bpp >> 3);
- info->cmap.len = (bpp == 8) ? 256 : 16;
-
- //
- // init acceleration engine
- //
- cyblafb_setup_GE(info->var.xres_virtual, info->var.bits_per_pixel);
-
- //
- // Set/clear flags to allow proper scroll mode selection.
- //
- if (var->xres == var->xres_virtual)
- info->flags &= ~FBINFO_HWACCEL_XPAN;
- else
- info->flags |= FBINFO_HWACCEL_XPAN;
-
- if (var->yres == var->yres_virtual)
- info->flags &= ~FBINFO_HWACCEL_YPAN;
- else
- info->flags |= FBINFO_HWACCEL_YPAN;
-
- if (info->fix.smem_len !=
- var->xres_virtual * var->yres_virtual * bpp / 8)
- info->flags &= ~FBINFO_HWACCEL_YWRAP;
- else
- info->flags |= FBINFO_HWACCEL_YWRAP;
-
- regdump(par);
-
- return 0;
-}
-
-//========================
-//
-// Set one color register
-//
-//========================
-
-static int cyblafb_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info)
-{
- int bpp = info->var.bits_per_pixel;
-
- KD_GRAPHICS_RETURN(0);
-
- if (regno >= info->cmap.len)
- return 1;
-
- if (bpp == 8) {
- out8(0x3C6, 0xFF);
- out8(0x3C8, regno);
- out8(0x3C9, red >> 10);
- out8(0x3C9, green >> 10);
- out8(0x3C9, blue >> 10);
-
- } else if (regno < 16) {
- 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);
- }
-
- return 0;
-}
-
-//==========================================================
-//
-// Try blanking the screen. For flat panels it does nothing
-//
-//==========================================================
-
-static int cyblafb_blank(int blank_mode, struct fb_info *info)
-{
- unsigned char PMCont, DPMSCont;
-
- KD_GRAPHICS_RETURN(0);
-
- if (displaytype == DISPLAY_FP)
- return 0;
-
- out8(0x83C8, 0x04); // DPMS Control
- PMCont = in8(0x83C6) & 0xFC;
-
- DPMSCont = read3CE(GR23) & 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(GR23, DPMSCont);
- out8(0x83C8, 4);
- out8(0x83C6, PMCont);
- //
- // let fbcon do a softblank for us
- //
- return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
-}
-
-static struct fb_ops cyblafb_ops __devinitdata = {
- .owner = THIS_MODULE,
- .fb_setcolreg = cyblafb_setcolreg,
- .fb_pan_display = cyblafb_pan_display,
- .fb_blank = cyblafb_blank,
- .fb_check_var = cyblafb_check_var,
- .fb_set_par = cyblafb_set_par,
- .fb_fillrect = cyblafb_fillrect,
- .fb_copyarea = cyblafb_copyarea,
- .fb_imageblit = cyblafb_imageblit,
- .fb_sync = cyblafb_sync,
- .fb_restore_state = cyblafb_restore_state,
- .fb_save_state = cyblafb_save_state,
-};
-
-//==========================================================================
-//
-// getstartupmode() decides about the inital video mode
-//
-// There is no reason to use modedb, a lot of video modes there would
-// need altered timings to display correctly. So I decided that it is much
-// better to provide a limited optimized set of modes plus the option of
-// using the mode in effect at startup time (might be selected using the
-// vga=??? parameter). After that the user might use fbset to select any
-// mode he likes, check_var will not try to alter geometry parameters as
-// it would be necessary otherwise.
-//
-//==========================================================================
-
-static int __devinit getstartupmode(struct fb_info *info)
-{
- u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend,
- vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend,
- cr00, cr01, cr02, cr03, cr04, cr05, cr2b,
- cr06, cr07, cr09, cr10, cr11, cr12, cr15, cr16, cr27,
- cr38, sr0d, sr18, sr19, gr0f, fi, pxclkdiv, vclkdiv, tmp, i;
-
- struct modus {
- int xres; int vxres; int yres; int vyres;
- int bpp; int pxclk;
- int left_margin; int right_margin;
- int upper_margin; int lower_margin;
- int hsync_len; int vsync_len;
- } modedb[5] = {
- {
- 0, 2048, 0, 4096, 0, 0, 0, 0, 0, 0, 0, 0}, {
- 640, 2048, 480, 4096, 0, 0, -40, 24, 17, 0, 216, 3}, {
- 800, 2048, 600, 4096, 0, 0, 96, 24, 14, 0, 136, 11}, {
- 1024, 2048, 768, 4096, 0, 0, 144, 24, 29, 0, 120, 3}, {
- 1280, 2048, 1024, 4096, 0, 0, 232, 16, 39, 0, 160, 3}
- };
-
- outb(0x00, 0x3d4); cr00 = inb(0x3d5);
- outb(0x01, 0x3d4); cr01 = inb(0x3d5);
- outb(0x02, 0x3d4); cr02 = inb(0x3d5);
- outb(0x03, 0x3d4); cr03 = inb(0x3d5);
- outb(0x04, 0x3d4); cr04 = inb(0x3d5);
- outb(0x05, 0x3d4); cr05 = inb(0x3d5);
- outb(0x06, 0x3d4); cr06 = inb(0x3d5);
- outb(0x07, 0x3d4); cr07 = inb(0x3d5);
- outb(0x09, 0x3d4); cr09 = inb(0x3d5);
- outb(0x10, 0x3d4); cr10 = inb(0x3d5);
- outb(0x11, 0x3d4); cr11 = inb(0x3d5);
- outb(0x12, 0x3d4); cr12 = inb(0x3d5);
- outb(0x15, 0x3d4); cr15 = inb(0x3d5);
- outb(0x16, 0x3d4); cr16 = inb(0x3d5);
- outb(0x27, 0x3d4); cr27 = inb(0x3d5);
- outb(0x2b, 0x3d4); cr2b = inb(0x3d5);
- outb(0x38, 0x3d4); cr38 = inb(0x3d5);
-
- outb(0x0b, 0x3c4);
- inb(0x3c5);
-
- outb(0x0d, 0x3c4); sr0d = inb(0x3c5);
- outb(0x18, 0x3c4); sr18 = inb(0x3c5);
- outb(0x19, 0x3c4); sr19 = inb(0x3c5);
- outb(0x0f, 0x3ce); gr0f = inb(0x3cf);
-
- htotal = cr00 | (cr2b & 0x01) << 8;
- hdispend = cr01 | (cr2b & 0x02) << 7;
- hblankstart = cr02 | (cr2b & 0x10) << 4;
- hblankend = (cr03 & 0x1f) | (cr05 & 0x80) >> 2;
- hsyncstart = cr04 | (cr2b & 0x08) << 5;
- hsyncend = cr05 & 0x1f;
-
- modedb[0].xres = hblankstart * 8;
- modedb[0].hsync_len = hsyncend * 8;
- modedb[0].right_margin = hsyncstart * 8 - modedb[0].xres;
- modedb[0].left_margin = (htotal + 5) * 8 - modedb[0].xres -
- modedb[0].right_margin - modedb[0].hsync_len;
-
- vtotal = cr06 | (cr07 & 0x01) << 8 | (cr07 & 0x20) << 4
- | (cr27 & 0x80) << 3;
- vdispend = cr12 | (cr07 & 0x02) << 7 | (cr07 & 0x40) << 3
- | (cr27 & 0x10) << 6;
- vsyncstart = cr10 | (cr07 & 0x04) << 6 | (cr07 & 0x80) << 2
- | (cr27 & 0x20) << 5;
- vsyncend = cr11 & 0x0f;
- vblankstart = cr15 | (cr07 & 0x08) << 5 | (cr09 & 0x20) << 4
- | (cr27 & 0x40) << 4;
- vblankend = cr16;
-
- modedb[0].yres = vdispend + 1;
- modedb[0].vsync_len = vsyncend;
- modedb[0].lower_margin = vsyncstart - modedb[0].yres;
- modedb[0].upper_margin = vtotal - modedb[0].yres -
- modedb[0].lower_margin - modedb[0].vsync_len + 2;
-
- tmp = cr38 & 0x3c;
- modedb[0].bpp = tmp == 0 ? 8 : tmp == 4 ? 16 : tmp == 28 ? 24 :
- tmp == 8 ? 32 : 8;
-
- fi = ((5864727 * (sr18 + 8)) /
- (((sr19 & 0x3f) + 2) * (1 << ((sr19 & 0xc0) >> 6)))) >> 12;
- pxclkdiv = ((gr0f & 0x08) >> 3 | (gr0f & 0x40) >> 5) + 1;
- tmp = sr0d & 0x06;
- vclkdiv = tmp == 0 ? 2 : tmp == 2 ? 4 : tmp == 4 ? 8 : 3; // * 2 !
- modedb[0].pxclk = ((100000000 * pxclkdiv * vclkdiv) >> 1) / fi;
-
- if (verbosity > 0)
- output("detected startup mode: "
- "fbset -g %d %d %d ??? %d -t %d %d %d %d %d %d %d\n",
- modedb[0].xres, modedb[0].yres, modedb[0].xres,
- modedb[0].bpp, modedb[0].pxclk, modedb[0].left_margin,
- modedb[0].right_margin, modedb[0].upper_margin,
- modedb[0].lower_margin, modedb[0].hsync_len,
- modedb[0].vsync_len);
-
- //
- // We use this goto target in case of a failed check_var. No, I really
- // do not want to do it in another way!
- //
-
- tryagain:
-
- i = (mode == NULL) ? 0 :
- !strncmp(mode, "640x480", 7) ? 1 :
- !strncmp(mode, "800x600", 7) ? 2 :
- !strncmp(mode, "1024x768", 8) ? 3 :
- !strncmp(mode, "1280x1024", 9) ? 4 : 0;
-
- ref = (ref < 50) ? 50 : (ref > 85) ? 85 : ref;
-
- if (i == 0) {
- info->var.pixclock = modedb[i].pxclk;
- info->var.bits_per_pixel = modedb[i].bpp;
- } else {
- info->var.pixclock = (100000000 /
- ((modedb[i].left_margin +
- modedb[i].xres +
- modedb[i].right_margin +
- modedb[i].hsync_len) *
- (modedb[i].upper_margin +
- modedb[i].yres +
- modedb[i].lower_margin +
- modedb[i].vsync_len) * ref / 10000));
- info->var.bits_per_pixel = bpp;
- }
-
- info->var.left_margin = modedb[i].left_margin;
- info->var.right_margin = modedb[i].right_margin;
- info->var.xres = modedb[i].xres;
- if (!(modedb[i].yres == 1280 && modedb[i].bpp == 32))
- info->var.xres_virtual = modedb[i].vxres;
- else
- info->var.xres_virtual = modedb[i].xres;
- info->var.xoffset = 0;
- info->var.hsync_len = modedb[i].hsync_len;
- info->var.upper_margin = modedb[i].upper_margin;
- info->var.yres = modedb[i].yres;
- info->var.yres_virtual = modedb[i].vyres;
- info->var.yoffset = 0;
- info->var.lower_margin = modedb[i].lower_margin;
- info->var.vsync_len = modedb[i].vsync_len;
- info->var.sync = 0;
- info->var.vmode = FB_VMODE_NONINTERLACED;
-
- if (cyblafb_check_var(&info->var, info)) {
- // 640x480 - 8@75 should really never fail. One case would
- // be fp == 1 and nativex < 640 ... give up then
- if (i == 1 && bpp == 8 && ref == 75) {
- output("Can't find a valid mode :-(\n");
- return -EINVAL;
- }
- // Our detected mode is unlikely to fail. If it does,
- // try 640x480 - 8@75 ...
- if (i == 0) {
- mode = "640x480";
- bpp = 8;
- ref = 75;
- output("Detected mode failed check_var! "
- "Trying 640x480 - 8@75\n");
- goto tryagain;
- }
- // A specified video mode failed for some reason.
- // Try the startup mode first
- output("Specified mode '%s' failed check! "
- "Falling back to startup mode.\n", mode);
- mode = NULL;
- goto tryagain;
- }
-
- return 0;
-}
-
-//========================================================
-//
-// Detect activated memory size. Undefined values require
-// memsize parameter.
-//
-//========================================================
-
-static unsigned int __devinit get_memsize(void)
-{
- unsigned char tmp;
- unsigned int k;
-
- if (memsize)
- k = memsize * Kb;
- else {
- tmp = read3X4(CR1F) & 0x0F;
- switch (tmp) {
- case 0x03:
- k = 1 * 1024 * 1024;
- break;
- case 0x07:
- k = 2 * 1024 * 1024;
- break;
- case 0x0F:
- k = 4 * 1024 * 1024;
- break;
- case 0x04:
- k = 8 * 1024 * 1024;
- break;
- default:
- k = 1 * 1024 * 1024;
- output("Unknown memory size code %x in CR1F."
- " We default to 1 Mb for now, please"
- " do provide a memsize parameter!\n", tmp);
- }
- }
-
- if (verbosity > 0)
- output("framebuffer size = %d Kb\n", k / Kb);
- return k;
-}
-
-//=========================================================
-//
-// Detect if a flat panel monitor connected to the special
-// interface is active. Override is possible by fp and crt
-// parameters.
-//
-//=========================================================
-
-static unsigned int __devinit get_displaytype(void)
-{
- if (fp)
- return DISPLAY_FP;
- if (crt)
- return DISPLAY_CRT;
- return (read3CE(GR33) & 0x10) ? DISPLAY_FP : DISPLAY_CRT;
-}
-
-//=====================================
-//
-// Get native resolution of flat panel
-//
-//=====================================
-
-static int __devinit get_nativex(void)
-{
- int x, y, tmp;
-
- if (nativex)
- return nativex;
-
- tmp = (read3CE(GR52) >> 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;
- }
-
- if (verbosity > 0)
- output("%dx%d flat panel found\n", x, y);
- return x;
-}
-
-static int __devinit cybla_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- struct fb_info *info;
- struct cyblafb_par *par;
-
- info = framebuffer_alloc(sizeof(struct cyblafb_par), &dev->dev);
- if (!info)
- goto errout_alloc_info;
-
- info->pixmap.addr = kzalloc(CYBLAFB_PIXMAPSIZE, GFP_KERNEL);
- if (!info->pixmap.addr) {
- output("allocation of pixmap buffer failed!\n");
- goto errout_alloc_pixmap;
- }
- info->pixmap.size = CYBLAFB_PIXMAPSIZE - 4;
- info->pixmap.buf_align = 4;
- info->pixmap.access_align = 32;
- info->pixmap.flags = FB_PIXMAP_SYSTEM;
- info->pixmap.scan_align = 4;
-
- par = info->par;
- par->ops = cyblafb_ops;
-
- info->fix = cyblafb_fix;
- info->fbops = &par->ops;
- info->fix = cyblafb_fix;
-
- if (pci_enable_device(dev)) {
- output("could not enable device!\n");
- goto errout_enable;
- }
- // might already be requested by vga console or vesafb,
- // so we do care about success
- if (!request_region(0x3c0, 0x20, "cyblafb")) {
- output("region 0x3c0/0x20 already reserved\n");
- vesafb |= 1;
-
- }
- //
- // Graphics Engine Registers
- //
- if (!request_region(GEBase, 0x100, "cyblafb")) {
- output("region %#x/0x100 already reserved\n", GEBase);
- vesafb |= 2;
- }
-
- regdump(par);
-
- enable_mmio();
-
- // setup MMIO region
- info->fix.mmio_start = pci_resource_start(dev, 1);
- info->fix.mmio_len = 0x20000;
-
- if (!request_mem_region(info->fix.mmio_start,
- info->fix.mmio_len, "cyblafb")) {
- output("request_mem_region failed for mmio region!\n");
- goto errout_mmio_reqmem;
- }
-
- io_virt = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
-
- if (!io_virt) {
- output("ioremap failed for mmio region\n");
- goto errout_mmio_remap;
- }
- // setup framebuffer memory ... might already be requested
- // by vesafb. Not to fail in case of an unsuccessful request
- // is useful if both are loaded.
- info->fix.smem_start = pci_resource_start(dev, 0);
- info->fix.smem_len = get_memsize();
-
- if (!request_mem_region(info->fix.smem_start,
- info->fix.smem_len, "cyblafb")) {
- output("region %#lx/%#x already reserved\n",
- info->fix.smem_start, info->fix.smem_len);
- vesafb |= 4;
- }
-
- info->screen_base = ioremap_nocache(info->fix.smem_start,
- info->fix.smem_len);
-
- if (!info->screen_base) {
- output("ioremap failed for smem region\n");
- goto errout_smem_remap;
- }
-
- displaytype = get_displaytype();
-
- if (displaytype == DISPLAY_FP)
- nativex = get_nativex();
-
- info->flags = FBINFO_DEFAULT
- | FBINFO_HWACCEL_COPYAREA
- | FBINFO_HWACCEL_FILLRECT
- | FBINFO_HWACCEL_IMAGEBLIT
- | FBINFO_READS_FAST
-// | FBINFO_PARTIAL_PAN_OK
- | FBINFO_MISC_ALWAYS_SETPAR;
-
- info->pseudo_palette = par->pseudo_pal;
-
- if (getstartupmode(info))
- goto errout_findmode;
-
- fb_alloc_cmap(&info->cmap, 256, 0);
-
- if (register_framebuffer(info)) {
- output("Could not register CyBla framebuffer\n");
- goto errout_register;
- }
-
- pci_set_drvdata(dev, info);
-
- //
- // normal exit and error paths
- //
-
- return 0;
-
- errout_register:
- errout_findmode:
- iounmap(info->screen_base);
- errout_smem_remap:
- if (!(vesafb & 4))
- release_mem_region(info->fix.smem_start, info->fix.smem_len);
- iounmap(io_virt);
- errout_mmio_remap:
- release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
- errout_mmio_reqmem:
- if (!(vesafb & 1))
- release_region(0x3c0, 32);
- errout_enable:
- kfree(info->pixmap.addr);
- errout_alloc_pixmap:
- framebuffer_release(info);
- errout_alloc_info:
- output("CyblaFB version %s aborting init.\n", VERSION);
- return -ENODEV;
-}
-
-static void __devexit cybla_pci_remove(struct pci_dev *dev)
-{
- struct fb_info *info = pci_get_drvdata(dev);
-
- unregister_framebuffer(info);
- iounmap(io_virt);
- iounmap(info->screen_base);
- if (!(vesafb & 4))
- release_mem_region(info->fix.smem_start, info->fix.smem_len);
- release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
- fb_dealloc_cmap(&info->cmap);
- if (!(vesafb & 2))
- release_region(GEBase, 0x100);
- if (!(vesafb & 1))
- release_region(0x3c0, 32);
- kfree(info->pixmap.addr);
- framebuffer_release(info);
- output("CyblaFB version %s normal exit.\n", VERSION);
-}
-
-//
-// List of boards that we are trying to support
-//
-static struct pci_device_id cybla_devices[] = {
- {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, cybla_devices);
-
-static struct pci_driver cyblafb_pci_driver = {
- .name = "cyblafb",
- .id_table = cybla_devices,
- .probe = cybla_pci_probe,
- .remove = __devexit_p(cybla_pci_remove)
-};
-
-//=============================================================
-//
-// kernel command line example:
-//
-// video=cyblafb:1280x1024, bpp=16, ref=50 ...
-//
-// modprobe command line example:
-//
-// modprobe cyblafb mode=1280x1024 bpp=16 ref=50 ...
-//
-//=============================================================
-
-static int __devinit cyblafb_init(void)
-{
-#ifndef MODULE
- char *options = NULL;
- char *opt;
-
- if (fb_get_options("cyblafb", &options))
- return -ENODEV;
-
- if (options && *options)
- while ((opt = strsep(&options, ",")) != NULL) {
- if (!*opt)
- continue;
- else if (!strncmp(opt, "bpp=", 4))
- bpp = simple_strtoul(opt + 4, NULL, 0);
- else if (!strncmp(opt, "ref=", 4))
- ref = simple_strtoul(opt + 4, NULL, 0);
- else if (!strncmp(opt, "fp", 2))
- displaytype = DISPLAY_FP;
- else if (!strncmp(opt, "crt", 3))
- displaytype = DISPLAY_CRT;
- else if (!strncmp(opt, "nativex=", 8))
- nativex = simple_strtoul(opt + 8, NULL, 0);
- else if (!strncmp(opt, "center", 6))
- center = 1;
- else if (!strncmp(opt, "stretch", 7))
- stretch = 1;
- else if (!strncmp(opt, "pciwb=", 6))
- pciwb = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pcirb=", 6))
- pcirb = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pciwr=", 6))
- pciwr = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pcirr=", 6))
- pcirr = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "memsize=", 8))
- memsize = simple_strtoul(opt + 8, NULL, 0);
- else if (!strncmp(opt, "verbosity=", 10))
- verbosity = simple_strtoul(opt + 10, NULL, 0);
- else
- mode = opt;
- }
-#endif
- output("CyblaFB version %s initializing\n", VERSION);
- return pci_register_driver(&cyblafb_pci_driver);
-}
-
-static void __exit cyblafb_exit(void)
-{
- pci_unregister_driver(&cyblafb_pci_driver);
-}
-
-module_init(cyblafb_init);
-module_exit(cyblafb_exit);
-
-MODULE_AUTHOR("Knut Petersen <knut_petersen@t-online.de>");
-MODULE_DESCRIPTION("Framebuffer driver for Cyberblade/i1 graphics core");
-MODULE_LICENSE("GPL");
projects / mirror_ubuntu-eoan-kernel.git / commitdiff