Lines Matching +full:timing +full:-
4 * Copyright (C) 1999 Silicon Graphics, Inc. - Jeffrey Newquist
5 * Copyright (C) 2002 Vivien Chappelier <vivien.chappelier@linux-mips.org>
14 #include <linux/dma-mapping.h>
37 struct gbe_timing_info timing; member
44 /* macro for fastest write-though access to the framebuffer */
63 #define TILE_MASK (TILE_SIZE - 1)
87 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
102 .height = -1,
103 .width = -1,
133 .height = -1,
134 .width = -1,
148 /* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
186 gbe->ctrlstat = 0x300aa000; in gbe_reset()
206 val = gbe->vt_xy; in gbe_turn_off()
211 val = gbe->ovr_control; in gbe_turn_off()
213 gbe->ovr_control = val; in gbe_turn_off()
215 val = gbe->frm_control; in gbe_turn_off()
217 gbe->frm_control = val; in gbe_turn_off()
219 val = gbe->did_control; in gbe_turn_off()
221 gbe->did_control = val; in gbe_turn_off()
227 val = gbe->frm_inhwctrl; in gbe_turn_off()
231 val = gbe->ovr_inhwctrl; in gbe_turn_off()
235 val = gbe->did_inhwctrl; in gbe_turn_off()
247 val = gbe->vt_vpixen; in gbe_turn_off()
251 val = gbe->vt_xy; in gbe_turn_off()
262 val = gbe->vt_xy; in gbe_turn_off()
275 gbe->vt_xy = val; in gbe_turn_off()
278 val = gbe->vt_xy; in gbe_turn_off()
288 val = gbe->dotclock; in gbe_turn_off()
290 gbe->dotclock = val; in gbe_turn_off()
293 val = gbe->dotclock; in gbe_turn_off()
303 val = gbe->frm_size_tile; in gbe_turn_off()
305 gbe->frm_size_tile = val; in gbe_turn_off()
307 gbe->frm_size_tile = val; in gbe_turn_off()
319 val = gbe->vt_xy; in gbe_turn_on()
325 val = gbe->dotclock; in gbe_turn_on()
327 gbe->dotclock = val; in gbe_turn_on()
330 val = gbe->dotclock; in gbe_turn_on()
342 gbe->vt_xy = val; in gbe_turn_on()
345 val = gbe->vt_xy; in gbe_turn_on()
355 val = gbe->frm_control; in gbe_turn_on()
357 gbe->frm_control = val; in gbe_turn_on()
360 val = gbe->frm_inhwctrl; in gbe_turn_on()
377 for (j = 0; j < 1000 && gbe->cm_fifo >= 63; j++) in gbe_loadcmap()
382 gbe->cmap[i] = gbe_cmap[i]; in gbe_loadcmap()
412 static void gbefb_setup_flatpanel(struct gbe_timing_info *timing) in gbefb_setup_flatpanel() argument
418 (timing->flags & FB_SYNC_HOR_HIGH_ACT) ? 0 : 1); in gbefb_setup_flatpanel()
420 (timing->flags & FB_SYNC_VERT_HIGH_ACT) ? 0 : 1); in gbefb_setup_flatpanel()
421 gbe->vt_flags = outputVal; in gbefb_setup_flatpanel()
428 timing->pll_m = 4; in gbefb_setup_flatpanel()
429 timing->pll_n = 1; in gbefb_setup_flatpanel()
430 timing->pll_p = 0; in gbefb_setup_flatpanel()
435 gbe->fp_de = outputVal; in gbefb_setup_flatpanel()
438 gbe->fp_hdrv = outputVal; in gbefb_setup_flatpanel()
442 gbe->fp_vdrv = outputVal; in gbefb_setup_flatpanel()
457 struct gbe_timing_info *timing) in compute_gbe_timing() argument
468 /* Determine valid resolution and timing in compute_gbe_timing()
478 pixclock = (1000000 / gbe_pll->clock_rate) * in compute_gbe_timing()
481 error = var->pixclock - pixclock; in compute_gbe_timing()
484 error = -error; in compute_gbe_timing()
488 gbe_pll->fvco_min / gbe_pll->clock_rate && in compute_gbe_timing()
490 gbe_pll->fvco_max / gbe_pll->clock_rate) { in compute_gbe_timing()
499 return -EINVAL; /* Resolution to high */ in compute_gbe_timing()
501 pixclock = (1000000 / gbe_pll->clock_rate) * in compute_gbe_timing()
504 /* set video timing information */ in compute_gbe_timing()
505 if (timing) { in compute_gbe_timing()
506 timing->width = var->xres; in compute_gbe_timing()
507 timing->height = var->yres; in compute_gbe_timing()
508 timing->pll_m = best_m; in compute_gbe_timing()
509 timing->pll_n = best_n; in compute_gbe_timing()
510 timing->pll_p = best_p; in compute_gbe_timing()
511 timing->cfreq = gbe_pll->clock_rate * 1000 * timing->pll_m / in compute_gbe_timing()
512 (timing->pll_n << timing->pll_p); in compute_gbe_timing()
513 timing->htotal = var->left_margin + var->xres + in compute_gbe_timing()
514 var->right_margin + var->hsync_len; in compute_gbe_timing()
515 timing->vtotal = var->upper_margin + var->yres + in compute_gbe_timing()
516 var->lower_margin + var->vsync_len; in compute_gbe_timing()
517 timing->fields_sec = 1000 * timing->cfreq / timing->htotal * in compute_gbe_timing()
518 1000 / timing->vtotal; in compute_gbe_timing()
519 timing->hblank_start = var->xres; in compute_gbe_timing()
520 timing->vblank_start = var->yres; in compute_gbe_timing()
521 timing->hblank_end = timing->htotal; in compute_gbe_timing()
522 timing->hsync_start = var->xres + var->right_margin + 1; in compute_gbe_timing()
523 timing->hsync_end = timing->hsync_start + var->hsync_len; in compute_gbe_timing()
524 timing->vblank_end = timing->vtotal; in compute_gbe_timing()
525 timing->vsync_start = var->yres + var->lower_margin + 1; in compute_gbe_timing()
526 timing->vsync_end = timing->vsync_start + var->vsync_len; in compute_gbe_timing()
532 static void gbe_set_timing_info(struct gbe_timing_info *timing) in gbe_set_timing_info() argument
539 SET_GBE_FIELD(DOTCLK, M, val, timing->pll_m - 1); in gbe_set_timing_info()
540 SET_GBE_FIELD(DOTCLK, N, val, timing->pll_n - 1); in gbe_set_timing_info()
541 SET_GBE_FIELD(DOTCLK, P, val, timing->pll_p); in gbe_set_timing_info()
543 gbe->dotclock = val; in gbe_set_timing_info()
548 SET_GBE_FIELD(VT_XYMAX, MAXX, val, timing->htotal); in gbe_set_timing_info()
549 SET_GBE_FIELD(VT_XYMAX, MAXY, val, timing->vtotal); in gbe_set_timing_info()
550 gbe->vt_xymax = val; in gbe_set_timing_info()
552 /* setup video timing signals */ in gbe_set_timing_info()
554 SET_GBE_FIELD(VT_VSYNC, VSYNC_ON, val, timing->vsync_start); in gbe_set_timing_info()
555 SET_GBE_FIELD(VT_VSYNC, VSYNC_OFF, val, timing->vsync_end); in gbe_set_timing_info()
556 gbe->vt_vsync = val; in gbe_set_timing_info()
558 SET_GBE_FIELD(VT_HSYNC, HSYNC_ON, val, timing->hsync_start); in gbe_set_timing_info()
559 SET_GBE_FIELD(VT_HSYNC, HSYNC_OFF, val, timing->hsync_end); in gbe_set_timing_info()
560 gbe->vt_hsync = val; in gbe_set_timing_info()
562 SET_GBE_FIELD(VT_VBLANK, VBLANK_ON, val, timing->vblank_start); in gbe_set_timing_info()
563 SET_GBE_FIELD(VT_VBLANK, VBLANK_OFF, val, timing->vblank_end); in gbe_set_timing_info()
564 gbe->vt_vblank = val; in gbe_set_timing_info()
567 timing->hblank_start - 5); in gbe_set_timing_info()
569 timing->hblank_end - 3); in gbe_set_timing_info()
570 gbe->vt_hblank = val; in gbe_set_timing_info()
572 /* setup internal timing signals */ in gbe_set_timing_info()
574 SET_GBE_FIELD(VT_VCMAP, VCMAP_ON, val, timing->vblank_start); in gbe_set_timing_info()
575 SET_GBE_FIELD(VT_VCMAP, VCMAP_OFF, val, timing->vblank_end); in gbe_set_timing_info()
576 gbe->vt_vcmap = val; in gbe_set_timing_info()
578 SET_GBE_FIELD(VT_HCMAP, HCMAP_ON, val, timing->hblank_start); in gbe_set_timing_info()
579 SET_GBE_FIELD(VT_HCMAP, HCMAP_OFF, val, timing->hblank_end); in gbe_set_timing_info()
580 gbe->vt_hcmap = val; in gbe_set_timing_info()
583 temp = timing->vblank_start - timing->vblank_end - 1; in gbe_set_timing_info()
585 temp = -temp; in gbe_set_timing_info()
588 gbefb_setup_flatpanel(timing); in gbe_set_timing_info()
591 if (timing->hblank_end >= 20) in gbe_set_timing_info()
593 timing->hblank_end - 20); in gbe_set_timing_info()
596 timing->htotal - (20 - timing->hblank_end)); in gbe_set_timing_info()
597 gbe->did_start_xy = val; in gbe_set_timing_info()
601 if (timing->hblank_end >= GBE_CRS_MAGIC) in gbe_set_timing_info()
603 timing->hblank_end - GBE_CRS_MAGIC); in gbe_set_timing_info()
606 timing->htotal - (GBE_CRS_MAGIC - in gbe_set_timing_info()
607 timing->hblank_end)); in gbe_set_timing_info()
608 gbe->crs_start_xy = val; in gbe_set_timing_info()
612 SET_GBE_FIELD(VC_START_XY, VC_STARTX, val, timing->hblank_end - 4); in gbe_set_timing_info()
613 gbe->vc_start_xy = val; in gbe_set_timing_info()
616 temp = timing->hblank_end - GBE_PIXEN_MAGIC_ON; in gbe_set_timing_info()
618 temp += timing->htotal; /* allow blank to wrap around */ in gbe_set_timing_info()
622 ((temp + timing->width - in gbe_set_timing_info()
623 GBE_PIXEN_MAGIC_OFF) % timing->htotal)); in gbe_set_timing_info()
624 gbe->vt_hpixen = val; in gbe_set_timing_info()
627 SET_GBE_FIELD(VT_VPIXEN, VPIXEN_ON, val, timing->vblank_end); in gbe_set_timing_info()
628 SET_GBE_FIELD(VT_VPIXEN, VPIXEN_OFF, val, timing->vblank_start); in gbe_set_timing_info()
629 gbe->vt_vpixen = val; in gbe_set_timing_info()
634 gbe->vt_flags = val; in gbe_set_timing_info()
649 struct gbefb_par *par = (struct gbefb_par *) info->par; in gbefb_set_par()
651 compute_gbe_timing(&info->var, &par->timing); in gbefb_set_par()
653 bytesPerPixel = info->var.bits_per_pixel / 8; in gbefb_set_par()
654 info->fix.line_length = info->var.xres_virtual * bytesPerPixel; in gbefb_set_par()
655 xpmax = par->timing.width; in gbefb_set_par()
656 ypmax = par->timing.height; in gbefb_set_par()
661 /* set timing info */ in gbefb_set_par()
662 gbe_set_timing_info(&par->timing); in gbefb_set_par()
669 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; in gbefb_set_par()
673 info->fix.visual = FB_VISUAL_TRUECOLOR; in gbefb_set_par()
677 info->fix.visual = FB_VISUAL_TRUECOLOR; in gbefb_set_par()
683 gbe->mode_regs[i] = val; in gbefb_set_par()
686 gbe->vt_intr01 = 0xffffffff; in gbefb_set_par()
687 gbe->vt_intr23 = 0xffffffff; in gbefb_set_par()
696 <-------- 640 -----> in gbefb_set_par()
697 <---- 512 ----><128|384 offscreen> in gbefb_set_par()
722 GBE -> tile list framebuffer TLB <------------ CPU in gbefb_set_par()
723 [ tile 0 ] -> [ 64KB ] <- [ 16x 4KB page entries ] ^ in gbefb_set_par()
725 [ tile n ] -> [ 64KB ] <- [ 16x 4KB page entries ] v in gbefb_set_par()
753 /* tile_ptr -> [ tile 1 ] -> FB mem */ in gbefb_set_par()
754 /* [ tile 2 ] -> FB mem */ in gbefb_set_par()
760 gbe->frm_control = val; in gbefb_set_par()
785 gbe->frm_size_tile = val; in gbefb_set_par()
792 gbe->frm_size_pixel = val; in gbefb_set_par()
795 gbe->did_control = 0; in gbefb_set_par()
796 gbe->ovr_width_tile = 0; in gbefb_set_par()
799 gbe->crs_ctl = 0; in gbefb_set_par()
807 gbe->gmap[i] = (i << 24) | (i << 16) | (i << 8); in gbefb_set_par()
822 strcpy(fix->id, "SGI GBE"); in gbefb_encode_fix()
823 fix->smem_start = (unsigned long) gbe_mem; in gbefb_encode_fix()
824 fix->smem_len = gbe_mem_size; in gbefb_encode_fix()
825 fix->type = FB_TYPE_PACKED_PIXELS; in gbefb_encode_fix()
826 fix->type_aux = 0; in gbefb_encode_fix()
827 fix->accel = FB_ACCEL_NONE; in gbefb_encode_fix()
828 switch (var->bits_per_pixel) { in gbefb_encode_fix()
830 fix->visual = FB_VISUAL_PSEUDOCOLOR; in gbefb_encode_fix()
833 fix->visual = FB_VISUAL_TRUECOLOR; in gbefb_encode_fix()
836 fix->ywrapstep = 0; in gbefb_encode_fix()
837 fix->xpanstep = 0; in gbefb_encode_fix()
838 fix->ypanstep = 0; in gbefb_encode_fix()
839 fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; in gbefb_encode_fix()
840 fix->mmio_start = GBE_BASE; in gbefb_encode_fix()
841 fix->mmio_len = sizeof(struct sgi_gbe); in gbefb_encode_fix()
862 if (info->var.bits_per_pixel <= 8) { in gbefb_setcolreg()
866 for (i = 0; i < 1000 && gbe->cm_fifo >= 63; i++) in gbefb_setcolreg()
872 gbe->cmap[regno] = gbe_cmap[regno]; in gbefb_setcolreg()
875 switch (info->var.bits_per_pixel) { in gbefb_setcolreg()
882 (red << info->var.red.offset) | in gbefb_setcolreg()
883 (green << info->var.green.offset) | in gbefb_setcolreg()
884 (blue << info->var.blue.offset); in gbefb_setcolreg()
888 (red << info->var.red.offset) | in gbefb_setcolreg()
889 (green << info->var.green.offset) | in gbefb_setcolreg()
890 (blue << info->var.blue.offset); in gbefb_setcolreg()
904 struct gbe_timing_info timing; in gbefb_check_var() local
908 if (var->bits_per_pixel <= 8) in gbefb_check_var()
909 var->bits_per_pixel = 8; in gbefb_check_var()
910 else if (var->bits_per_pixel <= 16) in gbefb_check_var()
911 var->bits_per_pixel = 16; in gbefb_check_var()
912 else if (var->bits_per_pixel <= 32) in gbefb_check_var()
913 var->bits_per_pixel = 32; in gbefb_check_var()
915 return -EINVAL; in gbefb_check_var()
919 if ((var->xres * var->yres * var->bits_per_pixel) & 4095) in gbefb_check_var()
920 return -EINVAL; in gbefb_check_var()
922 var->grayscale = 0; /* No grayscale for now */ in gbefb_check_var()
924 ret = compute_gbe_timing(var, &timing); in gbefb_check_var()
925 var->pixclock = ret; in gbefb_check_var()
927 return -EINVAL; in gbefb_check_var()
930 if (var->xres > var->xres_virtual || (!ywrap && !ypan)) in gbefb_check_var()
931 var->xres_virtual = var->xres; in gbefb_check_var()
932 if (var->yres > var->yres_virtual || (!ywrap && !ypan)) in gbefb_check_var()
933 var->yres_virtual = var->yres; in gbefb_check_var()
935 if (var->vmode & FB_VMODE_CONUPDATE) { in gbefb_check_var()
936 var->vmode |= FB_VMODE_YWRAP; in gbefb_check_var()
937 var->xoffset = info->var.xoffset; in gbefb_check_var()
938 var->yoffset = info->var.yoffset; in gbefb_check_var()
942 var->grayscale = 0; in gbefb_check_var()
945 line_length = var->xres_virtual * var->bits_per_pixel / 8; in gbefb_check_var()
946 if (line_length * var->yres_virtual > gbe_mem_size) in gbefb_check_var()
947 return -ENOMEM; /* Virtual resolution too high */ in gbefb_check_var()
949 switch (var->bits_per_pixel) { in gbefb_check_var()
951 var->red.offset = 0; in gbefb_check_var()
952 var->red.length = 8; in gbefb_check_var()
953 var->green.offset = 0; in gbefb_check_var()
954 var->green.length = 8; in gbefb_check_var()
955 var->blue.offset = 0; in gbefb_check_var()
956 var->blue.length = 8; in gbefb_check_var()
957 var->transp.offset = 0; in gbefb_check_var()
958 var->transp.length = 0; in gbefb_check_var()
961 var->red.offset = 10; in gbefb_check_var()
962 var->red.length = 5; in gbefb_check_var()
963 var->green.offset = 5; in gbefb_check_var()
964 var->green.length = 5; in gbefb_check_var()
965 var->blue.offset = 0; in gbefb_check_var()
966 var->blue.length = 5; in gbefb_check_var()
967 var->transp.offset = 0; in gbefb_check_var()
968 var->transp.length = 0; in gbefb_check_var()
971 var->red.offset = 24; in gbefb_check_var()
972 var->red.length = 8; in gbefb_check_var()
973 var->green.offset = 16; in gbefb_check_var()
974 var->green.length = 8; in gbefb_check_var()
975 var->blue.offset = 8; in gbefb_check_var()
976 var->blue.length = 8; in gbefb_check_var()
977 var->transp.offset = 0; in gbefb_check_var()
978 var->transp.length = 8; in gbefb_check_var()
981 var->red.msb_right = 0; in gbefb_check_var()
982 var->green.msb_right = 0; in gbefb_check_var()
983 var->blue.msb_right = 0; in gbefb_check_var()
984 var->transp.msb_right = 0; in gbefb_check_var()
986 var->left_margin = timing.htotal - timing.hsync_end; in gbefb_check_var()
987 var->right_margin = timing.hsync_start - timing.width; in gbefb_check_var()
988 var->upper_margin = timing.vtotal - timing.vsync_end; in gbefb_check_var()
989 var->lower_margin = timing.vsync_start - timing.height; in gbefb_check_var()
990 var->hsync_len = timing.hsync_end - timing.hsync_start; in gbefb_check_var()
991 var->vsync_len = timing.vsync_end - timing.vsync_start; in gbefb_check_var()
999 unsigned long size = vma->vm_end - vma->vm_start; in gbefb_mmap()
1000 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; in gbefb_mmap()
1006 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) in gbefb_mmap()
1007 return -EINVAL; in gbefb_mmap()
1009 return -EINVAL; in gbefb_mmap()
1010 if (offset > gbe_mem_size - size) in gbefb_mmap()
1011 return -EINVAL; in gbefb_mmap()
1013 /* remap using the fastest write-through mode on architecture */ in gbefb_mmap()
1016 pgprot_val(vma->vm_page_prot) = in gbefb_mmap()
1017 pgprot_fb(pgprot_val(vma->vm_page_prot)); in gbefb_mmap()
1023 addr = vma->vm_start; in gbefb_mmap()
1032 phys_size = TILE_SIZE - offset; in gbefb_mmap()
1035 phys_size, vma->vm_page_prot)) in gbefb_mmap()
1036 return -EAGAIN; in gbefb_mmap()
1039 size -= phys_size; in gbefb_mmap()
1133 info = framebuffer_alloc(sizeof(struct gbefb_par), &p_dev->dev); in gbefb_probe()
1135 return -ENOMEM; in gbefb_probe()
1139 ret = -ENODEV; in gbefb_probe()
1147 ret = -EBUSY; in gbefb_probe()
1151 gbe = (struct sgi_gbe *) devm_ioremap(&p_dev->dev, GBE_BASE, in gbefb_probe()
1155 ret = -ENXIO; in gbefb_probe()
1158 gbe_revision = gbe->ctrlstat & 15; in gbefb_probe()
1160 gbe_tiles.cpu = dmam_alloc_coherent(&p_dev->dev, in gbefb_probe()
1165 ret = -ENOMEM; in gbefb_probe()
1171 gbe_mem = devm_ioremap_wc(&p_dev->dev, gbe_mem_phys, in gbefb_probe()
1175 ret = -ENOMEM; in gbefb_probe()
1183 gbe_mem = dmam_alloc_attrs(&p_dev->dev, gbe_mem_size, in gbefb_probe()
1188 ret = -ENOMEM; in gbefb_probe()
1195 par = info->par; in gbefb_probe()
1196 par->wc_cookie = arch_phys_wc_add(gbe_mem_phys, gbe_mem_size); in gbefb_probe()
1202 info->fbops = &gbefb_ops; in gbefb_probe()
1203 info->pseudo_palette = pseudo_palette; in gbefb_probe()
1204 info->flags = FBINFO_DEFAULT; in gbefb_probe()
1205 info->screen_base = gbe_mem; in gbefb_probe()
1206 fb_alloc_cmap(&info->cmap, 256, 0); in gbefb_probe()
1212 if (fb_find_mode(&par->var, info, mode_option, NULL, 0, in gbefb_probe()
1214 par->var = *default_var; in gbefb_probe()
1215 info->var = par->var; in gbefb_probe()
1216 gbefb_check_var(&par->var, info); in gbefb_probe()
1217 gbefb_encode_fix(&info->fix, &info->var); in gbefb_probe()
1221 ret = -ENXIO; in gbefb_probe()
1226 gbefb_create_sysfs(&p_dev->dev); in gbefb_probe()
1229 info->fix.id, gbe_revision, (unsigned)GBE_BASE, in gbefb_probe()
1235 arch_phys_wc_del(par->wc_cookie); in gbefb_probe()
1247 struct gbefb_par *par = info->par; in gbefb_remove()
1251 arch_phys_wc_del(par->wc_cookie); in gbefb_remove()
1253 gbefb_remove_sysfs(&p_dev->dev); in gbefb_remove()
1277 ret = -ENOMEM; in gbefb_init()