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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 15:31:38 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/svgalib.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/svgalib.c')
-rw-r--r--drivers/video/svgalib.c672
1 files changed, 0 insertions, 672 deletions
diff --git a/drivers/video/svgalib.c b/drivers/video/svgalib.c
deleted file mode 100644
index 9e01322fabe3..000000000000
--- a/drivers/video/svgalib.c
+++ /dev/null
@@ -1,672 +0,0 @@
-/*
- * Common utility functions for VGA-based graphics cards.
- *
- * Copyright (c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- * Some parts are based on David Boucher's viafb (http://davesdomain.org.uk/viafb/)
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fb.h>
-#include <linux/svga.h>
-#include <asm/types.h>
-#include <asm/io.h>
-
-
-/* Write a CRT register value spread across multiple registers */
-void svga_wcrt_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value)
-{
- u8 regval, bitval, bitnum;
-
- while (regset->regnum != VGA_REGSET_END_VAL) {
- regval = vga_rcrt(regbase, regset->regnum);
- bitnum = regset->lowbit;
- while (bitnum <= regset->highbit) {
- bitval = 1 << bitnum;
- regval = regval & ~bitval;
- if (value & 1) regval = regval | bitval;
- bitnum ++;
- value = value >> 1;
- }
- vga_wcrt(regbase, regset->regnum, regval);
- regset ++;
- }
-}
-
-/* Write a sequencer register value spread across multiple registers */
-void svga_wseq_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value)
-{
- u8 regval, bitval, bitnum;
-
- while (regset->regnum != VGA_REGSET_END_VAL) {
- regval = vga_rseq(regbase, regset->regnum);
- bitnum = regset->lowbit;
- while (bitnum <= regset->highbit) {
- bitval = 1 << bitnum;
- regval = regval & ~bitval;
- if (value & 1) regval = regval | bitval;
- bitnum ++;
- value = value >> 1;
- }
- vga_wseq(regbase, regset->regnum, regval);
- regset ++;
- }
-}
-
-static unsigned int svga_regset_size(const struct vga_regset *regset)
-{
- u8 count = 0;
-
- while (regset->regnum != VGA_REGSET_END_VAL) {
- count += regset->highbit - regset->lowbit + 1;
- regset ++;
- }
- return 1 << count;
-}
-
-
-/* ------------------------------------------------------------------------- */
-
-
-/* Set graphics controller registers to sane values */
-void svga_set_default_gfx_regs(void __iomem *regbase)
-{
- /* All standard GFX registers (GR00 - GR08) */
- vga_wgfx(regbase, VGA_GFX_SR_VALUE, 0x00);
- vga_wgfx(regbase, VGA_GFX_SR_ENABLE, 0x00);
- vga_wgfx(regbase, VGA_GFX_COMPARE_VALUE, 0x00);
- vga_wgfx(regbase, VGA_GFX_DATA_ROTATE, 0x00);
- vga_wgfx(regbase, VGA_GFX_PLANE_READ, 0x00);
- vga_wgfx(regbase, VGA_GFX_MODE, 0x00);
-/* vga_wgfx(regbase, VGA_GFX_MODE, 0x20); */
-/* vga_wgfx(regbase, VGA_GFX_MODE, 0x40); */
- vga_wgfx(regbase, VGA_GFX_MISC, 0x05);
-/* vga_wgfx(regbase, VGA_GFX_MISC, 0x01); */
- vga_wgfx(regbase, VGA_GFX_COMPARE_MASK, 0x0F);
- vga_wgfx(regbase, VGA_GFX_BIT_MASK, 0xFF);
-}
-
-/* Set attribute controller registers to sane values */
-void svga_set_default_atc_regs(void __iomem *regbase)
-{
- u8 count;
-
- vga_r(regbase, 0x3DA);
- vga_w(regbase, VGA_ATT_W, 0x00);
-
- /* All standard ATC registers (AR00 - AR14) */
- for (count = 0; count <= 0xF; count ++)
- svga_wattr(regbase, count, count);
-
- svga_wattr(regbase, VGA_ATC_MODE, 0x01);
-/* svga_wattr(regbase, VGA_ATC_MODE, 0x41); */
- svga_wattr(regbase, VGA_ATC_OVERSCAN, 0x00);
- svga_wattr(regbase, VGA_ATC_PLANE_ENABLE, 0x0F);
- svga_wattr(regbase, VGA_ATC_PEL, 0x00);
- svga_wattr(regbase, VGA_ATC_COLOR_PAGE, 0x00);
-
- vga_r(regbase, 0x3DA);
- vga_w(regbase, VGA_ATT_W, 0x20);
-}
-
-/* Set sequencer registers to sane values */
-void svga_set_default_seq_regs(void __iomem *regbase)
-{
- /* Standard sequencer registers (SR01 - SR04), SR00 is not set */
- vga_wseq(regbase, VGA_SEQ_CLOCK_MODE, VGA_SR01_CHAR_CLK_8DOTS);
- vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, VGA_SR02_ALL_PLANES);
- vga_wseq(regbase, VGA_SEQ_CHARACTER_MAP, 0x00);
-/* vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, VGA_SR04_EXT_MEM | VGA_SR04_SEQ_MODE | VGA_SR04_CHN_4M); */
- vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, VGA_SR04_EXT_MEM | VGA_SR04_SEQ_MODE);
-}
-
-/* Set CRTC registers to sane values */
-void svga_set_default_crt_regs(void __iomem *regbase)
-{
- /* Standard CRT registers CR03 CR08 CR09 CR14 CR17 */
- svga_wcrt_mask(regbase, 0x03, 0x80, 0x80); /* Enable vertical retrace EVRA */
- vga_wcrt(regbase, VGA_CRTC_PRESET_ROW, 0);
- svga_wcrt_mask(regbase, VGA_CRTC_MAX_SCAN, 0, 0x1F);
- vga_wcrt(regbase, VGA_CRTC_UNDERLINE, 0);
- vga_wcrt(regbase, VGA_CRTC_MODE, 0xE3);
-}
-
-void svga_set_textmode_vga_regs(void __iomem *regbase)
-{
- /* svga_wseq_mask(regbase, 0x1, 0x00, 0x01); */ /* Switch 8/9 pixel per char */
- vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, VGA_SR04_EXT_MEM);
- vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, 0x03);
-
- vga_wcrt(regbase, VGA_CRTC_MAX_SCAN, 0x0f); /* 0x4f */
- vga_wcrt(regbase, VGA_CRTC_UNDERLINE, 0x1f);
- svga_wcrt_mask(regbase, VGA_CRTC_MODE, 0x23, 0x7f);
-
- vga_wcrt(regbase, VGA_CRTC_CURSOR_START, 0x0d);
- vga_wcrt(regbase, VGA_CRTC_CURSOR_END, 0x0e);
- vga_wcrt(regbase, VGA_CRTC_CURSOR_HI, 0x00);
- vga_wcrt(regbase, VGA_CRTC_CURSOR_LO, 0x00);
-
- vga_wgfx(regbase, VGA_GFX_MODE, 0x10); /* Odd/even memory mode */
- vga_wgfx(regbase, VGA_GFX_MISC, 0x0E); /* Misc graphics register - text mode enable */
- vga_wgfx(regbase, VGA_GFX_COMPARE_MASK, 0x00);
-
- vga_r(regbase, 0x3DA);
- vga_w(regbase, VGA_ATT_W, 0x00);
-
- svga_wattr(regbase, 0x10, 0x0C); /* Attribute Mode Control Register - text mode, blinking and line graphics */
- svga_wattr(regbase, 0x13, 0x08); /* Horizontal Pixel Panning Register */
-
- vga_r(regbase, 0x3DA);
- vga_w(regbase, VGA_ATT_W, 0x20);
-}
-
-#if 0
-void svga_dump_var(struct fb_var_screeninfo *var, int node)
-{
- pr_debug("fb%d: var.vmode : 0x%X\n", node, var->vmode);
- pr_debug("fb%d: var.xres : %d\n", node, var->xres);
- pr_debug("fb%d: var.yres : %d\n", node, var->yres);
- pr_debug("fb%d: var.bits_per_pixel: %d\n", node, var->bits_per_pixel);
- pr_debug("fb%d: var.xres_virtual : %d\n", node, var->xres_virtual);
- pr_debug("fb%d: var.yres_virtual : %d\n", node, var->yres_virtual);
- pr_debug("fb%d: var.left_margin : %d\n", node, var->left_margin);
- pr_debug("fb%d: var.right_margin : %d\n", node, var->right_margin);
- pr_debug("fb%d: var.upper_margin : %d\n", node, var->upper_margin);
- pr_debug("fb%d: var.lower_margin : %d\n", node, var->lower_margin);
- pr_debug("fb%d: var.hsync_len : %d\n", node, var->hsync_len);
- pr_debug("fb%d: var.vsync_len : %d\n", node, var->vsync_len);
- pr_debug("fb%d: var.sync : 0x%X\n", node, var->sync);
- pr_debug("fb%d: var.pixclock : %d\n\n", node, var->pixclock);
-}
-#endif /* 0 */
-
-
-/* ------------------------------------------------------------------------- */
-
-
-void svga_settile(struct fb_info *info, struct fb_tilemap *map)
-{
- const u8 *font = map->data;
- u8 __iomem *fb = (u8 __iomem *)info->screen_base;
- int i, c;
-
- if ((map->width != 8) || (map->height != 16) ||
- (map->depth != 1) || (map->length != 256)) {
- fb_err(info, "unsupported font parameters: width %d, height %d, depth %d, length %d\n",
- map->width, map->height, map->depth, map->length);
- return;
- }
-
- fb += 2;
- for (c = 0; c < map->length; c++) {
- for (i = 0; i < map->height; i++) {
- fb_writeb(font[i], fb + i * 4);
-// fb[i * 4] = font[i];
- }
- fb += 128;
- font += map->height;
- }
-}
-
-/* Copy area in text (tileblit) mode */
-void svga_tilecopy(struct fb_info *info, struct fb_tilearea *area)
-{
- int dx, dy;
- /* colstride is halved in this function because u16 are used */
- int colstride = 1 << (info->fix.type_aux & FB_AUX_TEXT_SVGA_MASK);
- int rowstride = colstride * (info->var.xres_virtual / 8);
- u16 __iomem *fb = (u16 __iomem *) info->screen_base;
- u16 __iomem *src, *dst;
-
- if ((area->sy > area->dy) ||
- ((area->sy == area->dy) && (area->sx > area->dx))) {
- src = fb + area->sx * colstride + area->sy * rowstride;
- dst = fb + area->dx * colstride + area->dy * rowstride;
- } else {
- src = fb + (area->sx + area->width - 1) * colstride
- + (area->sy + area->height - 1) * rowstride;
- dst = fb + (area->dx + area->width - 1) * colstride
- + (area->dy + area->height - 1) * rowstride;
-
- colstride = -colstride;
- rowstride = -rowstride;
- }
-
- for (dy = 0; dy < area->height; dy++) {
- u16 __iomem *src2 = src;
- u16 __iomem *dst2 = dst;
- for (dx = 0; dx < area->width; dx++) {
- fb_writew(fb_readw(src2), dst2);
-// *dst2 = *src2;
- src2 += colstride;
- dst2 += colstride;
- }
- src += rowstride;
- dst += rowstride;
- }
-}
-
-/* Fill area in text (tileblit) mode */
-void svga_tilefill(struct fb_info *info, struct fb_tilerect *rect)
-{
- int dx, dy;
- int colstride = 2 << (info->fix.type_aux & FB_AUX_TEXT_SVGA_MASK);
- int rowstride = colstride * (info->var.xres_virtual / 8);
- int attr = (0x0F & rect->bg) << 4 | (0x0F & rect->fg);
- u8 __iomem *fb = (u8 __iomem *)info->screen_base;
- fb += rect->sx * colstride + rect->sy * rowstride;
-
- for (dy = 0; dy < rect->height; dy++) {
- u8 __iomem *fb2 = fb;
- for (dx = 0; dx < rect->width; dx++) {
- fb_writeb(rect->index, fb2);
- fb_writeb(attr, fb2 + 1);
- fb2 += colstride;
- }
- fb += rowstride;
- }
-}
-
-/* Write text in text (tileblit) mode */
-void svga_tileblit(struct fb_info *info, struct fb_tileblit *blit)
-{
- int dx, dy, i;
- int colstride = 2 << (info->fix.type_aux & FB_AUX_TEXT_SVGA_MASK);
- int rowstride = colstride * (info->var.xres_virtual / 8);
- int attr = (0x0F & blit->bg) << 4 | (0x0F & blit->fg);
- u8 __iomem *fb = (u8 __iomem *)info->screen_base;
- fb += blit->sx * colstride + blit->sy * rowstride;
-
- i=0;
- for (dy=0; dy < blit->height; dy ++) {
- u8 __iomem *fb2 = fb;
- for (dx = 0; dx < blit->width; dx ++) {
- fb_writeb(blit->indices[i], fb2);
- fb_writeb(attr, fb2 + 1);
- fb2 += colstride;
- i ++;
- if (i == blit->length) return;
- }
- fb += rowstride;
- }
-
-}
-
-/* Set cursor in text (tileblit) mode */
-void svga_tilecursor(void __iomem *regbase, struct fb_info *info, struct fb_tilecursor *cursor)
-{
- u8 cs = 0x0d;
- u8 ce = 0x0e;
- u16 pos = cursor->sx + (info->var.xoffset / 8)
- + (cursor->sy + (info->var.yoffset / 16))
- * (info->var.xres_virtual / 8);
-
- if (! cursor -> mode)
- return;
-
- svga_wcrt_mask(regbase, 0x0A, 0x20, 0x20); /* disable cursor */
-
- if (cursor -> shape == FB_TILE_CURSOR_NONE)
- return;
-
- switch (cursor -> shape) {
- case FB_TILE_CURSOR_UNDERLINE:
- cs = 0x0d;
- break;
- case FB_TILE_CURSOR_LOWER_THIRD:
- cs = 0x09;
- break;
- case FB_TILE_CURSOR_LOWER_HALF:
- cs = 0x07;
- break;
- case FB_TILE_CURSOR_TWO_THIRDS:
- cs = 0x05;
- break;
- case FB_TILE_CURSOR_BLOCK:
- cs = 0x01;
- break;
- }
-
- /* set cursor position */
- vga_wcrt(regbase, 0x0E, pos >> 8);
- vga_wcrt(regbase, 0x0F, pos & 0xFF);
-
- vga_wcrt(regbase, 0x0B, ce); /* set cursor end */
- vga_wcrt(regbase, 0x0A, cs); /* set cursor start and enable it */
-}
-
-int svga_get_tilemax(struct fb_info *info)
-{
- return 256;
-}
-
-/* Get capabilities of accelerator based on the mode */
-
-void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps,
- struct fb_var_screeninfo *var)
-{
- if (var->bits_per_pixel == 0) {
- /* can only support 256 8x16 bitmap */
- caps->x = 1 << (8 - 1);
- caps->y = 1 << (16 - 1);
- caps->len = 256;
- } else {
- caps->x = (var->bits_per_pixel == 4) ? 1 << (8 - 1) : ~(u32)0;
- caps->y = ~(u32)0;
- caps->len = ~(u32)0;
- }
-}
-EXPORT_SYMBOL(svga_get_caps);
-
-/* ------------------------------------------------------------------------- */
-
-
-/*
- * Compute PLL settings (M, N, R)
- * F_VCO = (F_BASE * M) / N
- * F_OUT = F_VCO / (2^R)
- */
-
-static inline u32 abs_diff(u32 a, u32 b)
-{
- return (a > b) ? (a - b) : (b - a);
-}
-
-int svga_compute_pll(const struct svga_pll *pll, u32 f_wanted, u16 *m, u16 *n, u16 *r, int node)
-{
- u16 am, an, ar;
- u32 f_vco, f_current, delta_current, delta_best;
-
- pr_debug("fb%d: ideal frequency: %d kHz\n", node, (unsigned int) f_wanted);
-
- ar = pll->r_max;
- f_vco = f_wanted << ar;
-
- /* overflow check */
- if ((f_vco >> ar) != f_wanted)
- return -EINVAL;
-
- /* It is usually better to have greater VCO clock
- because of better frequency stability.
- So first try r_max, then r smaller. */
- while ((ar > pll->r_min) && (f_vco > pll->f_vco_max)) {
- ar--;
- f_vco = f_vco >> 1;
- }
-
- /* VCO bounds check */
- if ((f_vco < pll->f_vco_min) || (f_vco > pll->f_vco_max))
- return -EINVAL;
-
- delta_best = 0xFFFFFFFF;
- *m = 0;
- *n = 0;
- *r = ar;
-
- am = pll->m_min;
- an = pll->n_min;
-
- while ((am <= pll->m_max) && (an <= pll->n_max)) {
- f_current = (pll->f_base * am) / an;
- delta_current = abs_diff (f_current, f_vco);
-
- if (delta_current < delta_best) {
- delta_best = delta_current;
- *m = am;
- *n = an;
- }
-
- if (f_current <= f_vco) {
- am ++;
- } else {
- an ++;
- }
- }
-
- f_current = (pll->f_base * *m) / *n;
- pr_debug("fb%d: found frequency: %d kHz (VCO %d kHz)\n", node, (int) (f_current >> ar), (int) f_current);
- pr_debug("fb%d: m = %d n = %d r = %d\n", node, (unsigned int) *m, (unsigned int) *n, (unsigned int) *r);
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------- */
-
-
-/* Check CRT timing values */
-int svga_check_timings(const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, int node)
-{
- u32 value;
-
- var->xres = (var->xres+7)&~7;
- var->left_margin = (var->left_margin+7)&~7;
- var->right_margin = (var->right_margin+7)&~7;
- var->hsync_len = (var->hsync_len+7)&~7;
-
- /* Check horizontal total */
- value = var->xres + var->left_margin + var->right_margin + var->hsync_len;
- if (((value / 8) - 5) >= svga_regset_size (tm->h_total_regs))
- return -EINVAL;
-
- /* Check horizontal display and blank start */
- value = var->xres;
- if (((value / 8) - 1) >= svga_regset_size (tm->h_display_regs))
- return -EINVAL;
- if (((value / 8) - 1) >= svga_regset_size (tm->h_blank_start_regs))
- return -EINVAL;
-
- /* Check horizontal sync start */
- value = var->xres + var->right_margin;
- if (((value / 8) - 1) >= svga_regset_size (tm->h_sync_start_regs))
- return -EINVAL;
-
- /* Check horizontal blank end (or length) */
- value = var->left_margin + var->right_margin + var->hsync_len;
- if ((value == 0) || ((value / 8) >= svga_regset_size (tm->h_blank_end_regs)))
- return -EINVAL;
-
- /* Check horizontal sync end (or length) */
- value = var->hsync_len;
- if ((value == 0) || ((value / 8) >= svga_regset_size (tm->h_sync_end_regs)))
- return -EINVAL;
-
- /* Check vertical total */
- value = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
- if ((value - 1) >= svga_regset_size(tm->v_total_regs))
- return -EINVAL;
-
- /* Check vertical display and blank start */
- value = var->yres;
- if ((value - 1) >= svga_regset_size(tm->v_display_regs))
- return -EINVAL;
- if ((value - 1) >= svga_regset_size(tm->v_blank_start_regs))
- return -EINVAL;
-
- /* Check vertical sync start */
- value = var->yres + var->lower_margin;
- if ((value - 1) >= svga_regset_size(tm->v_sync_start_regs))
- return -EINVAL;
-
- /* Check vertical blank end (or length) */
- value = var->upper_margin + var->lower_margin + var->vsync_len;
- if ((value == 0) || (value >= svga_regset_size (tm->v_blank_end_regs)))
- return -EINVAL;
-
- /* Check vertical sync end (or length) */
- value = var->vsync_len;
- if ((value == 0) || (value >= svga_regset_size (tm->v_sync_end_regs)))
- return -EINVAL;
-
- return 0;
-}
-
-/* Set CRT timing registers */
-void svga_set_timings(void __iomem *regbase, const struct svga_timing_regs *tm,
- struct fb_var_screeninfo *var,
- u32 hmul, u32 hdiv, u32 vmul, u32 vdiv, u32 hborder, int node)
-{
- u8 regval;
- u32 value;
-
- value = var->xres + var->left_margin + var->right_margin + var->hsync_len;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal total : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_total_regs, (value / 8) - 5);
-
- value = var->xres;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal display : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_display_regs, (value / 8) - 1);
-
- value = var->xres;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal blank start: %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_blank_start_regs, (value / 8) - 1 + hborder);
-
- value = var->xres + var->left_margin + var->right_margin + var->hsync_len;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal blank end : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_blank_end_regs, (value / 8) - 1 - hborder);
-
- value = var->xres + var->right_margin;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal sync start : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_sync_start_regs, (value / 8));
-
- value = var->xres + var->right_margin + var->hsync_len;
- value = (value * hmul) / hdiv;
- pr_debug("fb%d: horizontal sync end : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->h_sync_end_regs, (value / 8));
-
- value = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical total : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_total_regs, value - 2);
-
- value = var->yres;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical display : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_display_regs, value - 1);
-
- value = var->yres;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical blank start : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_blank_start_regs, value);
-
- value = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical blank end : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_blank_end_regs, value - 2);
-
- value = var->yres + var->lower_margin;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical sync start : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_sync_start_regs, value);
-
- value = var->yres + var->lower_margin + var->vsync_len;
- value = (value * vmul) / vdiv;
- pr_debug("fb%d: vertical sync end : %d\n", node, value);
- svga_wcrt_multi(regbase, tm->v_sync_end_regs, value);
-
- /* Set horizontal and vertical sync pulse polarity in misc register */
-
- regval = vga_r(regbase, VGA_MIS_R);
- if (var->sync & FB_SYNC_HOR_HIGH_ACT) {
- pr_debug("fb%d: positive horizontal sync\n", node);
- regval = regval & ~0x80;
- } else {
- pr_debug("fb%d: negative horizontal sync\n", node);
- regval = regval | 0x80;
- }
- if (var->sync & FB_SYNC_VERT_HIGH_ACT) {
- pr_debug("fb%d: positive vertical sync\n", node);
- regval = regval & ~0x40;
- } else {
- pr_debug("fb%d: negative vertical sync\n\n", node);
- regval = regval | 0x40;
- }
- vga_w(regbase, VGA_MIS_W, regval);
-}
-
-
-/* ------------------------------------------------------------------------- */
-
-
-static inline int match_format(const struct svga_fb_format *frm,
- struct fb_var_screeninfo *var)
-{
- int i = 0;
- int stored = -EINVAL;
-
- while (frm->bits_per_pixel != SVGA_FORMAT_END_VAL)
- {
- if ((var->bits_per_pixel == frm->bits_per_pixel) &&
- (var->red.length <= frm->red.length) &&
- (var->green.length <= frm->green.length) &&
- (var->blue.length <= frm->blue.length) &&
- (var->transp.length <= frm->transp.length) &&
- (var->nonstd == frm->nonstd))
- return i;
- if (var->bits_per_pixel == frm->bits_per_pixel)
- stored = i;
- i++;
- frm++;
- }
- return stored;
-}
-
-int svga_match_format(const struct svga_fb_format *frm,
- struct fb_var_screeninfo *var,
- struct fb_fix_screeninfo *fix)
-{
- int i = match_format(frm, var);
-
- if (i >= 0) {
- var->bits_per_pixel = frm[i].bits_per_pixel;
- var->red = frm[i].red;
- var->green = frm[i].green;
- var->blue = frm[i].blue;
- var->transp = frm[i].transp;
- var->nonstd = frm[i].nonstd;
- if (fix != NULL) {
- fix->type = frm[i].type;
- fix->type_aux = frm[i].type_aux;
- fix->visual = frm[i].visual;
- fix->xpanstep = frm[i].xpanstep;
- }
- }
-
- return i;
-}
-
-
-EXPORT_SYMBOL(svga_wcrt_multi);
-EXPORT_SYMBOL(svga_wseq_multi);
-
-EXPORT_SYMBOL(svga_set_default_gfx_regs);
-EXPORT_SYMBOL(svga_set_default_atc_regs);
-EXPORT_SYMBOL(svga_set_default_seq_regs);
-EXPORT_SYMBOL(svga_set_default_crt_regs);
-EXPORT_SYMBOL(svga_set_textmode_vga_regs);
-
-EXPORT_SYMBOL(svga_settile);
-EXPORT_SYMBOL(svga_tilecopy);
-EXPORT_SYMBOL(svga_tilefill);
-EXPORT_SYMBOL(svga_tileblit);
-EXPORT_SYMBOL(svga_tilecursor);
-EXPORT_SYMBOL(svga_get_tilemax);
-
-EXPORT_SYMBOL(svga_compute_pll);
-EXPORT_SYMBOL(svga_check_timings);
-EXPORT_SYMBOL(svga_set_timings);
-EXPORT_SYMBOL(svga_match_format);
-
-MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>");
-MODULE_DESCRIPTION("Common utility functions for VGA-based graphics cards");
-MODULE_LICENSE("GPL");