/* ffb.c: Creator/Elite3D frame buffer driver * * Copyright (C) 2003 David S. Miller (davem@redhat.com) * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@ultra.linux.cz) * * Driver layout based loosely on tgafb.c, see that file for credits. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/fb.h> #include <linux/mm.h> #include <linux/timer.h> #include <asm/io.h> #include <asm/upa.h> #include <asm/oplib.h> #include <asm/fbio.h> #include "sbuslib.h" /* * Local functions. */ static int ffb_setcolreg(unsigned, unsigned, unsigned, unsigned, unsigned, struct fb_info *); static int ffb_blank(int, struct fb_info *); static void ffb_init_fix(struct fb_info *); static void ffb_imageblit(struct fb_info *, const struct fb_image *); static void ffb_fillrect(struct fb_info *, const struct fb_fillrect *); static void ffb_copyarea(struct fb_info *, const struct fb_copyarea *); static int ffb_sync(struct fb_info *); static int ffb_mmap(struct fb_info *, struct vm_area_struct *); static int ffb_ioctl(struct fb_info *, unsigned int, unsigned long); static int ffb_pan_display(struct fb_var_screeninfo *, struct fb_info *); /* * Frame buffer operations */ static struct fb_ops ffb_ops = { .owner = THIS_MODULE, .fb_setcolreg = ffb_setcolreg, .fb_blank = ffb_blank, .fb_pan_display = ffb_pan_display, .fb_fillrect = ffb_fillrect, .fb_copyarea = ffb_copyarea, .fb_imageblit = ffb_imageblit, .fb_sync = ffb_sync, .fb_mmap = ffb_mmap, .fb_ioctl = ffb_ioctl, #ifdef CONFIG_COMPAT .fb_compat_ioctl = sbusfb_compat_ioctl, #endif }; /* Register layout and definitions */ #define FFB_SFB8R_VOFF 0x00000000 #define FFB_SFB8G_VOFF 0x00400000 #define FFB_SFB8B_VOFF 0x00800000 #define FFB_SFB8X_VOFF 0x00c00000 #define FFB_SFB32_VOFF 0x01000000 #define FFB_SFB64_VOFF 0x02000000 #define FFB_FBC_REGS_VOFF 0x04000000 #define FFB_BM_FBC_REGS_VOFF 0x04002000 #define FFB_DFB8R_VOFF 0x04004000 #define FFB_DFB8G_VOFF 0x04404000 #define FFB_DFB8B_VOFF 0x04804000 #define FFB_DFB8X_VOFF 0x04c04000 #define FFB_DFB24_VOFF 0x05004000 #define FFB_DFB32_VOFF 0x06004000 #define FFB_DFB422A_VOFF 0x07004000 /* DFB 422 mode write to A */ #define FFB_DFB422AD_VOFF 0x07804000 /* DFB 422 mode with line doubling */ #define FFB_DFB24B_VOFF 0x08004000 /* DFB 24bit mode write to B */ #define FFB_DFB422B_VOFF 0x09004000 /* DFB 422 mode write to B */ #define FFB_DFB422BD_VOFF 0x09804000 /* DFB 422 mode with line doubling */ #define FFB_SFB16Z_VOFF 0x0a004000 /* 16bit mode Z planes */ #define FFB_SFB8Z_VOFF 0x0a404000 /* 8bit mode Z planes */ #define FFB_SFB422_VOFF 0x0ac04000 /* SFB 422 mode write to A/B */ #define FFB_SFB422D_VOFF 0x0b404000 /* SFB 422 mode with line doubling */ #define FFB_FBC_KREGS_VOFF 0x0bc04000 #define FFB_DAC_VOFF 0x0bc06000 #define FFB_PROM_VOFF 0x0bc08000 #define FFB_EXP_VOFF 0x0bc18000 #define FFB_SFB8R_POFF 0x04000000UL #define FFB_SFB8G_POFF 0x04400000UL #define FFB_SFB8B_POFF 0x04800000UL #define FFB_SFB8X_POFF 0x04c00000UL #define FFB_SFB32_POFF 0x05000000UL #define FFB_SFB64_POFF 0x06000000UL #define FFB_FBC_REGS_POFF 0x00600000UL #define FFB_BM_FBC_REGS_POFF 0x00600000UL #define FFB_DFB8R_POFF 0x01000000UL #define FFB_DFB8G_POFF 0x01400000UL #define FFB_DFB8B_POFF 0x01800000UL #define FFB_DFB8X_POFF 0x01c00000UL #define FFB_DFB24_POFF 0x02000000UL #define FFB_DFB32_POFF 0x03000000UL #define FFB_FBC_KREGS_POFF 0x00610000UL #define FFB_DAC_POFF 0x00400000UL #define FFB_PROM_POFF 0x00000000UL #define FFB_EXP_POFF 0x00200000UL #define FFB_DFB422A_POFF 0x09000000UL #define FFB_DFB422AD_POFF 0x09800000UL #define FFB_DFB24B_POFF 0x0a000000UL #define FFB_DFB422B_POFF 0x0b000000UL #define FFB_DFB422BD_POFF 0x0b800000UL #define FFB_SFB16Z_POFF 0x0c800000UL #define FFB_SFB8Z_POFF 0x0c000000UL #define FFB_SFB422_POFF 0x0d000000UL #define FFB_SFB422D_POFF 0x0d800000UL /* Draw operations */ #define FFB_DRAWOP_DOT 0x00 #define FFB_DRAWOP_AADOT 0x01 #define FFB_DRAWOP_BRLINECAP 0x02 #define FFB_DRAWOP_BRLINEOPEN 0x03 #define FFB_DRAWOP_DDLINE 0x04 #define FFB_DRAWOP_AALINE 0x05 #define FFB_DRAWOP_TRIANGLE 0x06 #define FFB_DRAWOP_POLYGON 0x07 #define FFB_DRAWOP_RECTANGLE 0x08 #define FFB_DRAWOP_FASTFILL 0x09 #define FFB_DRAWOP_BCOPY 0x0a #define FFB_DRAWOP_VSCROLL 0x0b /* Pixel processor control */ /* Force WID */ #define FFB_PPC_FW_DISABLE 0x800000 #define FFB_PPC_FW_ENABLE 0xc00000 /* Auxiliary clip */ #define FFB_PPC_ACE_DISABLE 0x040000 #define FFB_PPC_ACE_AUX_SUB 0x080000 #define FFB_PPC_ACE_AUX_ADD 0x0c0000 /* Depth cue */ #define FFB_PPC_DCE_DISABLE 0x020000 #define FFB_PPC_DCE_ENABLE 0x030000 /* Alpha blend */ #define FFB_PPC_ABE_DISABLE 0x008000 #define FFB_PPC_ABE_ENABLE 0x00c000 /* View clip */ #define FFB_PPC_VCE_DISABLE 0x001000 #define FFB_PPC_VCE_2D 0x002000 #define FFB_PPC_VCE_3D 0x003000 /* Area pattern */ #define FFB_PPC_APE_DISABLE 0x000800 #define FFB_PPC_APE_ENABLE 0x000c00 /* Transparent background */ #define FFB_PPC_TBE_OPAQUE 0x000200 #define FFB_PPC_TBE_TRANSPARENT 0x000300 /* Z source */ #define FFB_PPC_ZS_VAR 0x000080 #define FFB_PPC_ZS_CONST 0x0000c0 /* Y source */ #define FFB_PPC_YS_VAR 0x000020 #define FFB_PPC_YS_CONST 0x000030 /* X source */ #define FFB_PPC_XS_WID 0x000004 #define FFB_PPC_XS_VAR 0x000008 #define FFB_PPC_XS_CONST 0x00000c /* Color (BGR) source */ #define FFB_PPC_CS_VAR 0x000002 #define FFB_PPC_CS_CONST 0x000003 #define FFB_ROP_NEW 0x83 #define FFB_ROP_OLD 0x85 #define FFB_ROP_NEW_XOR_OLD 0x86 #define FFB_UCSR_FIFO_MASK 0x00000fff #define FFB_UCSR_FB_BUSY 0x01000000 #define FFB_UCSR_RP_BUSY 0x02000000 #define FFB_UCSR_ALL_BUSY (FFB_UCSR_RP_BUSY|FFB_UCSR_FB_BUSY) #define FFB_UCSR_READ_ERR 0x40000000 #define FFB_UCSR_FIFO_OVFL 0x80000000 #define FFB_UCSR_ALL_ERRORS (FFB_UCSR_READ_ERR|FFB_UCSR_FIFO_OVFL) struct ffb_fbc { /* Next vertex registers */ u32 xxx1[3]; volatile u32 alpha; volatile u32 red; volatile u32 green; volatile u32 blue; volatile u32 depth; volatile u32 y; volatile u32 x; u32 xxx2[2]; volatile u32 ryf; volatile u32 rxf; u32 xxx3[2]; volatile u32 dmyf; volatile u32 dmxf; u32 xxx4[2]; volatile u32 ebyi; volatile u32 ebxi; u32 xxx5[2]; volatile u32 by; volatile u32 bx; u32 dy; u32 dx; volatile u32 bh; volatile u32 bw; u32 xxx6[2]; u32 xxx7[32]; /* Setup unit vertex state register */ volatile u32 suvtx; u32 xxx8[63]; /* Control registers */ volatile u32 ppc; volatile u32 wid; volatile u32 fg; volatile u32 bg; volatile u32 consty; volatile u32 constz; volatile u32 xclip; volatile u32 dcss; volatile u32 vclipmin; volatile u32 vclipmax; volatile u32 vclipzmin; volatile u32 vclipzmax; volatile u32 dcsf; volatile u32 dcsb; volatile u32 dczf; volatile u32 dczb; u32 xxx9; volatile u32 blendc; volatile u32 blendc1; volatile u32 blendc2; volatile u32 fbramitc; volatile u32 fbc; volatile u32 rop; volatile u32 cmp; volatile u32 matchab; volatile u32 matchc; volatile u32 magnab; volatile u32 magnc; volatile u32 fbcfg0; volatile u32 fbcfg1; volatile u32 fbcfg2; volatile u32 fbcfg3; u32 ppcfg; volatile u32 pick; volatile u32 fillmode; volatile u32 fbramwac; volatile u32 pmask; volatile u32 xpmask; volatile u32 ypmask; volatile u32 zpmask; volatile u32 clip0min; volatile u32 clip0max; volatile u32 clip1min; volatile u32 clip1max; volatile u32 clip2min; volatile u32 clip2max; volatile u32 clip3min; volatile u32 clip3max; /* New 3dRAM III support regs */ volatile u32 rawblend2; volatile u32 rawpreblend; volatile u32 rawstencil; volatile u32 rawstencilctl; volatile u32 threedram1; volatile u32 threedram2; volatile u32 passin; volatile u32 rawclrdepth; volatile u32 rawpmask; volatile u32 rawcsrc; volatile u32 rawmatch; volatile u32 rawmagn; volatile u32 rawropblend; volatile u32 rawcmp; volatile u32 rawwac; volatile u32 fbramid; volatile u32 drawop; u32 xxx10[2]; volatile u32 fontlpat; u32 xxx11; volatile u32 fontxy; volatile u32 fontw; volatile u32 fontinc; volatile u32 font; u32 xxx12[3]; volatile u32 blend2; volatile u32 preblend; volatile u32 stencil; volatile u32 stencilctl; u32 xxx13[4]; volatile u32 dcss1; volatile u32 dcss2; volatile u32 dcss3; volatile u32 widpmask; volatile u32 dcs2; volatile u32 dcs3; volatile u32 dcs4; u32 xxx14; volatile u32 dcd2; volatile u32 dcd3; volatile u32 dcd4; u32 xxx15; volatile u32 pattern[32]; u32 xxx16[256]; volatile u32 devid; u32 xxx17[63]; volatile u32 ucsr; u32 xxx18[31]; volatile u32 mer; }; struct ffb_dac { volatile u32 type; volatile u32 value; volatile u32 type2; volatile u32 value2; }; struct ffb_par { spinlock_t lock; struct ffb_fbc *fbc; struct ffb_dac *dac; u32 flags; #define FFB_FLAG_AFB 0x00000001 #define FFB_FLAG_BLANKED 0x00000002 u32 fg_cache __attribute__((aligned (8))); u32 bg_cache; u32 rop_cache; int fifo_cache; unsigned long physbase; unsigned long fbsize; char name[64]; int prom_node; int prom_parent_node; int dac_rev; int board_type; }; static void FFBFifo(struct ffb_par *par, int n) { struct ffb_fbc *fbc; int cache = par->fifo_cache; if (cache - n < 0) { fbc = par->fbc; do { cache = (upa_readl(&fbc->ucsr) & FFB_UCSR_FIFO_MASK) - 8; } while (cache - n < 0); } par->fifo_cache = cache - n; } static void FFBWait(struct ffb_par *par) { struct ffb_fbc *fbc; int limit = 10000; fbc = par->fbc; do { if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_BUSY) == 0) break; if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_ERRORS) != 0) { upa_writel(FFB_UCSR_ALL_ERRORS, &fbc->ucsr); } udelay(10); } while(--limit > 0); } static int ffb_sync(struct fb_info *p) { struct ffb_par *par = (struct ffb_par *) p->par; FFBWait(par); return 0; } static __inline__ void ffb_rop(struct ffb_par *par, u32 rop) { if (par->rop_cache != rop) { FFBFifo(par, 1); upa_writel(rop, &par->fbc->rop); par->rop_cache = rop; } } static void ffb_switch_from_graph(struct ffb_par *par) { struct ffb_fbc *fbc = par->fbc; struct ffb_dac *dac = par->dac; unsigned long flags; spin_lock_irqsave(&par->lock, flags); FFBWait(par); par->fifo_cache = 0; FFBFifo(par, 7); upa_writel(FFB_PPC_VCE_DISABLE|FFB_PPC_TBE_OPAQUE| FFB_PPC_APE_DISABLE|FFB_PPC_CS_CONST, &fbc->ppc); upa_writel(0x2000707f, &fbc->fbc); upa_writel(par->rop_cache, &fbc->rop); upa_writel(0xffffffff, &fbc->pmask); upa_writel((1 << 16) | (0 << 0), &fbc->fontinc); upa_writel(par->fg_cache, &fbc->fg); upa_writel(par->bg_cache, &fbc->bg); FFBWait(par); /* Disable cursor. */ upa_writel(0x100, &dac->type2); if (par->dac_rev <= 2) upa_writel(0, &dac->value2); else upa_writel(3, &dac->value2); spin_unlock_irqrestore(&par->lock, flags); } static int ffb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { struct ffb_par *par = (struct ffb_par *) info->par; /* We just use this to catch switches out of * graphics mode. */ ffb_switch_from_graph(par); if (var->xoffset || var->yoffset || var->vmode) return -EINVAL; return 0; } /** * ffb_fillrect - REQUIRED function. Can use generic routines if * non acclerated hardware and packed pixel based. * Draws a rectangle on the screen. * * @info: frame buffer structure that represents a single frame buffer * @rect: structure defining the rectagle and operation. */ static void ffb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { struct ffb_par *par = (struct ffb_par *) info->par; struct ffb_fbc *fbc = par->fbc; unsigned long flags; u32 fg; if (rect->rop != ROP_COPY && rect->rop != ROP_XOR) BUG(); fg = ((u32 *)info->pseudo_palette)[rect->color]; spin_lock_irqsave(&par->lock, flags); if (fg != par->fg_cache) { FFBFifo(par, 1); upa_writel(fg, &fbc->fg); par->fg_cache = fg; } ffb_rop(par, (rect->rop == ROP_COPY ? FFB_ROP_NEW : FFB_ROP_NEW_XOR_OLD)); FFBFifo(par, 5); upa_writel(FFB_DRAWOP_RECTANGLE, &fbc->drawop); upa_writel(rect->dy, &fbc->by); upa_writel(rect->dx, &fbc->bx); upa_writel(rect->height, &fbc->bh); upa_writel(rect->width, &fbc->bw); spin_unlock_irqrestore(&par->lock, flags); } /** * ffb_copyarea - REQUIRED function. Can use generic routines if * non acclerated hardware and packed pixel based. * Copies on area of the screen to another area. * * @info: frame buffer structure that represents a single frame buffer * @area: structure defining the source and destination. */ static void ffb_copyarea(struct fb_info *info, const struct fb_copyarea *area) { struct ffb_par *par = (struct ffb_par *) info->par; struct ffb_fbc *fbc = par->fbc; unsigned long flags; if (area->dx != area->sx || area->dy == area->sy) { cfb_copyarea(info, area); return; } spin_lock_irqsave(&par->lock, flags); ffb_rop(par, FFB_ROP_OLD); FFBFifo(par, 7); upa_writel(FFB_DRAWOP_VSCROLL, &fbc->drawop); upa_writel(area->sy, &fbc->by); upa_writel(area->sx, &fbc->bx); upa_writel(area->dy, &fbc->dy); upa_writel(area->dx, &fbc->dx); upa_writel(area->height, &fbc->bh); upa_writel(area->width, &fbc->bw); spin_unlock_irqrestore(&par->lock, flags); } /** * ffb_imageblit - REQUIRED function. Can use generic routines if * non acclerated hardware and packed pixel based. * Copies a image from system memory to the screen. * * @info: frame buffer structure that represents a single frame buffer * @image: structure defining the image. */ static void ffb_imageblit(struct fb_info *info, const struct fb_image *image) { struct ffb_par *par = (struct ffb_par *) info->par; struct ffb_fbc *fbc = par->fbc; const u8 *data = image->data; unsigned long flags; u32 fg, bg, xy; u64 fgbg; int i, width, stride; if (image->depth > 1) { cfb_imageblit(info, image); return; } fg = ((u32 *)info->pseudo_palette)[image->fg_color]; bg = ((u32 *)info->pseudo_palette)[image->bg_color]; fgbg = ((u64) fg << 32) | (u64) bg; xy = (image->dy << 16) | image->dx; width = image->width; stride = ((width + 7) >> 3); spin_lock_irqsave(&par->lock, flags); if (fgbg != *(u64 *)&par->fg_cache) { FFBFifo(par, 2); upa_writeq(fgbg, &fbc->fg); *(u64 *)&par->fg_cache = fgbg; } if (width >= 32) { FFBFifo(par, 1); upa_writel(32, &fbc->fontw); } while (width >= 32) { const u8 *next_data = data + 4; FFBFifo(par, 1); upa_writel(xy, &fbc->fontxy); xy += (32 << 0); for (i = 0; i < image->height; i++) { u32 val = (((u32)data[0] << 24) | ((u32)data[1] << 16) | ((u32)data[2] << 8) | ((u32)data[3] << 0)); FFBFifo(par, 1); upa_writel(val, &fbc->font); data += stride; } data = next_data; width -= 32; } if (width) { FFBFifo(par, 2); upa_writel(width, &fbc->fontw); upa_writel(xy, &fbc->fontxy); for (i = 0; i < image->height; i++) { u32 val = (((u32)data[0] << 24) | ((u32)data[1] << 16) | ((u32)data[2] << 8) | ((u32)data[3] << 0)); FFBFifo(par, 1); upa_writel(val, &fbc->font); data += stride; } } spin_unlock_irqrestore(&par->lock, flags); } static void ffb_fixup_var_rgb(struct fb_var_screeninfo *var) { var->red.offset = 0; var->red.length = 8; var->green.offset = 8; var->green.length = 8; var->blue.offset = 16; var->blue.length = 8; var->transp.offset = 0; var->transp.length = 0; } /** * ffb_setcolreg - Optional function. Sets a color register. * @regno: boolean, 0 copy local, 1 get_user() function * @red: frame buffer colormap structure * @green: The green value which can be up to 16 bits wide * @blue: The blue value which can be up to 16 bits wide. * @transp: If supported the alpha value which can be up to 16 bits wide. * @info: frame buffer info structure */ static int ffb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) { u32 value; if (regno >= 256) return 1; red >>= 8; green >>= 8; blue >>= 8; value = (blue << 16) | (green << 8) | red; ((u32 *)info->pseudo_palette)[regno] = value; return 0; } /** * ffb_blank - Optional function. Blanks the display. * @blank_mode: the blank mode we want. * @info: frame buffer structure that represents a single frame buffer */ static int ffb_blank(int blank, struct fb_info *info) { struct ffb_par *par = (struct ffb_par *) info->par; struct ffb_dac *dac = par->dac; unsigned long flags; u32 tmp; spin_lock_irqsave(&par->lock, flags); FFBWait(par); switch (blank) { case FB_BLANK_UNBLANK: /* Unblanking */ upa_writel(0x6000, &dac->type); tmp = (upa_readl(&dac->value) | 0x1); upa_writel(0x6000, &dac->type); upa_writel(tmp, &dac->value); par->flags &= ~FFB_FLAG_BLANKED; break; case FB_BLANK_NORMAL: /* Normal blanking */ case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ case FB_BLANK_POWERDOWN: /* Poweroff */ upa_writel(0x6000, &dac->type); tmp = (upa_readl(&dac->value) & ~0x1); upa_writel(0x6000, &dac->type); upa_writel(tmp, &dac->value); par->flags |= FFB_FLAG_BLANKED; break; } spin_unlock_irqrestore(&par->lock, flags); return 0; } static struct sbus_mmap_map ffb_mmap_map[] = { { .voff = FFB_SFB8R_VOFF, .poff = FFB_SFB8R_POFF, .size = 0x0400000 }, { .voff = FFB_SFB8G_VOFF, .poff = FFB_SFB8G_POFF, .size = 0x0400000 }, { .voff = FFB_SFB8B_VOFF, .poff = FFB_SFB8B_POFF, .size = 0x0400000 }, { .voff = FFB_SFB8X_VOFF, .poff = FFB_SFB8X_POFF, .size = 0x0400000 }, { .voff = FFB_SFB32_VOFF, .poff = FFB_SFB32_POFF, .size = 0x1000000 }, { .voff = FFB_SFB64_VOFF, .poff = FFB_SFB64_POFF, .size = 0x2000000 }, { .voff = FFB_FBC_REGS_VOFF, .poff = FFB_FBC_REGS_POFF, .size = 0x0002000 }, { .voff = FFB_BM_FBC_REGS_VOFF, .poff = FFB_BM_FBC_REGS_POFF, .size = 0x0002000 }, { .voff = FFB_DFB8R_VOFF, .poff = FFB_DFB8R_POFF, .size = 0x0400000 }, { .voff = FFB_DFB8G_VOFF, .poff = FFB_DFB8G_POFF, .size = 0x0400000 }, { .voff = FFB_DFB8B_VOFF, .poff = FFB_DFB8B_POFF, .size = 0x0400000 }, { .voff = FFB_DFB8X_VOFF, .poff = FFB_DFB8X_POFF, .size = 0x0400000 }, { .voff = FFB_DFB24_VOFF, .poff = FFB_DFB24_POFF, .size = 0x1000000 }, { .voff = FFB_DFB32_VOFF, .poff = FFB_DFB32_POFF, .size = 0x1000000 }, { .voff = FFB_FBC_KREGS_VOFF, .poff = FFB_FBC_KREGS_POFF, .size = 0x0002000 }, { .voff = FFB_DAC_VOFF, .poff = FFB_DAC_POFF, .size = 0x0002000 }, { .voff = FFB_PROM_VOFF, .poff = FFB_PROM_POFF, .size = 0x0010000 }, { .voff = FFB_EXP_VOFF, .poff = FFB_EXP_POFF, .size = 0x0002000 }, { .voff = FFB_DFB422A_VOFF, .poff = FFB_DFB422A_POFF, .size = 0x0800000 }, { .voff = FFB_DFB422AD_VOFF, .poff = FFB_DFB422AD_POFF, .size = 0x0800000 }, { .voff = FFB_DFB24B_VOFF, .poff = FFB_DFB24B_POFF, .size = 0x1000000 }, { .voff = FFB_DFB422B_VOFF, .poff = FFB_DFB422B_POFF, .size = 0x0800000 }, { .voff = FFB_DFB422BD_VOFF, .poff = FFB_DFB422BD_POFF, .size = 0x0800000 }, { .voff = FFB_SFB16Z_VOFF, .poff = FFB_SFB16Z_POFF, .size = 0x0800000 }, { .voff = FFB_SFB8Z_VOFF, .poff = FFB_SFB8Z_POFF, .size = 0x0800000 }, { .voff = FFB_SFB422_VOFF, .poff = FFB_SFB422_POFF, .size = 0x0800000 }, { .voff = FFB_SFB422D_VOFF, .poff = FFB_SFB422D_POFF, .size = 0x0800000 }, { .size = 0 } }; static int ffb_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct ffb_par *par = (struct ffb_par *)info->par; return sbusfb_mmap_helper(ffb_mmap_map, par->physbase, par->fbsize, 0, vma); } static int ffb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct ffb_par *par = (struct ffb_par *) info->par; return sbusfb_ioctl_helper(cmd, arg, info, FBTYPE_CREATOR, 24, par->fbsize); } /* * Initialisation */ static void ffb_init_fix(struct fb_info *info) { struct ffb_par *par = (struct ffb_par *)info->par; const char *ffb_type_name; if (!(par->flags & FFB_FLAG_AFB)) { if ((par->board_type & 0x7) == 0x3) ffb_type_name = "Creator 3D"; else ffb_type_name = "Creator"; } else ffb_type_name = "Elite 3D"; strlcpy(info->fix.id, ffb_type_name, sizeof(info->fix.id)); info->fix.type = FB_TYPE_PACKED_PIXELS; info->fix.visual = FB_VISUAL_TRUECOLOR; /* Framebuffer length is the same regardless of resolution. */ info->fix.line_length = 8192; info->fix.accel = FB_ACCEL_SUN_CREATOR; } static int ffb_apply_upa_parent_ranges(int parent, struct linux_prom64_registers *regs) { struct linux_prom64_ranges ranges[PROMREG_MAX]; char name[128]; int len, i; prom_getproperty(parent, "name", name, sizeof(name)); if (strcmp(name, "upa") != 0) return 0; len = prom_getproperty(parent, "ranges", (void *) ranges, sizeof(ranges)); if (len <= 0) return 1; len /= sizeof(struct linux_prom64_ranges); for (i = 0; i < len; i++) { struct linux_prom64_ranges *rng = &ranges[i]; u64 phys_addr = regs->phys_addr; if (phys_addr >= rng->ot_child_base && phys_addr < (rng->ot_child_base + rng->or_size)) { regs->phys_addr -= rng->ot_child_base; regs->phys_addr += rng->ot_parent_base; return 0; } } return 1; } struct all_info { struct fb_info info; struct ffb_par par; u32 pseudo_palette[256]; struct list_head list; }; static LIST_HEAD(ffb_list); static void ffb_init_one(int node, int parent) { struct linux_prom64_registers regs[2*PROMREG_MAX]; struct ffb_fbc *fbc; struct ffb_dac *dac; struct all_info *all; if (prom_getproperty(node, "reg", (void *) regs, sizeof(regs)) <= 0) { printk("ffb: Cannot get reg device node property.\n"); return; } if (ffb_apply_upa_parent_ranges(parent, ®s[0])) { printk("ffb: Cannot apply parent ranges to regs.\n"); return; } all = kmalloc(sizeof(*all), GFP_KERNEL); if (!all) { printk(KERN_ERR "ffb: Cannot allocate memory.\n"); return; } memset(all, 0, sizeof(*all)); INIT_LIST_HEAD(&all->list); spin_lock_init(&all->par.lock); all->par.fbc = (struct ffb_fbc *)(regs[0].phys_addr + FFB_FBC_REGS_POFF); all->par.dac = (struct ffb_dac *)(regs[0].phys_addr + FFB_DAC_POFF); all->par.rop_cache = FFB_ROP_NEW; all->par.physbase = regs[0].phys_addr; all->par.prom_node = node; all->par.prom_parent_node = parent; /* Don't mention copyarea, so SCROLL_REDRAW is always * used. It is the fastest on this chip. */ all->info.flags = (FBINFO_DEFAULT | /* FBINFO_HWACCEL_COPYAREA | */ FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT); all->info.fbops = &ffb_ops; all->info.screen_base = (char *) all->par.physbase + FFB_DFB24_POFF; all->info.par = &all->par; all->info.pseudo_palette = all->pseudo_palette; sbusfb_fill_var(&all->info.var, all->par.prom_node, 32); all->par.fbsize = PAGE_ALIGN(all->info.var.xres * all->info.var.yres * 4); ffb_fixup_var_rgb(&all->info.var); all->info.var.accel_flags = FB_ACCELF_TEXT; prom_getstring(node, "name", all->par.name, sizeof(all->par.name)); if (!strcmp(all->par.name, "SUNW,afb")) all->par.flags |= FFB_FLAG_AFB; all->par.board_type = prom_getintdefault(node, "board_type", 0); fbc = all->par.fbc; if((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_ERRORS) != 0) upa_writel(FFB_UCSR_ALL_ERRORS, &fbc->ucsr); ffb_switch_from_graph(&all->par); dac = all->par.dac; upa_writel(0x8000, &dac->type); all->par.dac_rev = upa_readl(&dac->value) >> 0x1c; /* Elite3D has different DAC revision numbering, and no DAC revisions * have the reversed meaning of cursor enable. */ if (all->par.flags & FFB_FLAG_AFB) all->par.dac_rev = 10; /* Unblank it just to be sure. When there are multiple * FFB/AFB cards in the system, or it is not the OBP * chosen console, it will have video outputs off in * the DAC. */ ffb_blank(0, &all->info); if (fb_alloc_cmap(&all->info.cmap, 256, 0)) { printk(KERN_ERR "ffb: Could not allocate color map.\n"); kfree(all); return; } ffb_init_fix(&all->info); if (register_framebuffer(&all->info) < 0) { printk(KERN_ERR "ffb: Could not register framebuffer.\n"); fb_dealloc_cmap(&all->info.cmap); kfree(all); return; } list_add(&all->list, &ffb_list); printk("ffb: %s at %016lx type %d DAC %d\n", ((all->par.flags & FFB_FLAG_AFB) ? "AFB" : "FFB"), regs[0].phys_addr, all->par.board_type, all->par.dac_rev); } static void ffb_scan_siblings(int root) { int node, child; child = prom_getchild(root); for (node = prom_searchsiblings(child, "SUNW,ffb"); node; node = prom_searchsiblings(prom_getsibling(node), "SUNW,ffb")) ffb_init_one(node, root); for (node = prom_searchsiblings(child, "SUNW,afb"); node; node = prom_searchsiblings(prom_getsibling(node), "SUNW,afb")) ffb_init_one(node, root); } int __init ffb_init(void) { int root; if (fb_get_options("ffb", NULL)) return -ENODEV; ffb_scan_siblings(prom_root_node); root = prom_getchild(prom_root_node); for (root = prom_searchsiblings(root, "upa"); root; root = prom_searchsiblings(prom_getsibling(root), "upa")) ffb_scan_siblings(root); return 0; } void __exit ffb_exit(void) { struct list_head *pos, *tmp; list_for_each_safe(pos, tmp, &ffb_list) { struct all_info *all = list_entry(pos, typeof(*all), list); unregister_framebuffer(&all->info); fb_dealloc_cmap(&all->info.cmap); kfree(all); } } int __init ffb_setup(char *arg) { /* No cmdline options yet... */ return 0; } module_init(ffb_init); #ifdef MODULE module_exit(ffb_exit); #endif MODULE_DESCRIPTION("framebuffer driver for Creator/Elite3D chipsets"); MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); MODULE_LICENSE("GPL");