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Message-Id: <1321908839-11419-3-git-send-email-geert@linux-m68k.org>
Date: Mon, 21 Nov 2011 21:53:54 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Florian Tobias Schandinat <FlorianSchandinat@....de>,
linux-fbdev@...r.kernel.org
Cc: linux-m68k@...r.kernel.org, linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 3/8] fbdev/amifb: Reorder functions to remove forward declarations
No functional changes
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
drivers/video/amifb.c | 2767 ++++++++++++++++++++++++-------------------------
1 files changed, 1356 insertions(+), 1411 deletions(-)
diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c
index 39d211a..d7961bd 100644
--- a/drivers/video/amifb.c
+++ b/drivers/video/amifb.c
@@ -1118,82 +1118,1213 @@ static u_short sprfetchmode[3] = {
};
+/* --------------------------- Hardware routines --------------------------- */
+
/*
- * Interface used by the world
+ * Get the video params out of `var'. If a value doesn't fit, round
+ * it up, if it's too big, return -EINVAL.
*/
-int amifb_setup(char*);
+static int ami_decode_var(struct fb_var_screeninfo *var,
+ struct amifb_par *par)
+{
+ u_short clk_shift, line_shift;
+ u_long maxfetchstop, fstrt, fsize, fconst, xres_n, yres_n;
+ u_int htotal, vtotal;
-static int amifb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info);
-static int amifb_set_par(struct fb_info *info);
-static int amifb_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info);
-static int amifb_blank(int blank, struct fb_info *info);
-static int amifb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info);
-static void amifb_fillrect(struct fb_info *info,
- const struct fb_fillrect *rect);
-static void amifb_copyarea(struct fb_info *info,
- const struct fb_copyarea *region);
-static void amifb_imageblit(struct fb_info *info,
- const struct fb_image *image);
-static int amifb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg);
+ /*
+ * Find a matching Pixel Clock
+ */
+ for (clk_shift = TAG_SHRES; clk_shift <= TAG_LORES; clk_shift++)
+ if (var->pixclock <= pixclock[clk_shift])
+ break;
+ if (clk_shift > TAG_LORES) {
+ DPRINTK("pixclock too high\n");
+ return -EINVAL;
+ }
+ par->clk_shift = clk_shift;
/*
- * Interface to the low level console driver
+ * Check the Geometry Values
*/
-static void amifb_deinit(struct platform_device *pdev);
+ if ((par->xres = var->xres) < 64)
+ par->xres = 64;
+ if ((par->yres = var->yres) < 64)
+ par->yres = 64;
+ if ((par->vxres = var->xres_virtual) < par->xres)
+ par->vxres = par->xres;
+ if ((par->vyres = var->yres_virtual) < par->yres)
+ par->vyres = par->yres;
+
+ par->bpp = var->bits_per_pixel;
+ if (!var->nonstd) {
+ if (par->bpp < 1)
+ par->bpp = 1;
+ if (par->bpp > maxdepth[clk_shift]) {
+ if (round_down_bpp && maxdepth[clk_shift])
+ par->bpp = maxdepth[clk_shift];
+ else {
+ DPRINTK("invalid bpp\n");
+ return -EINVAL;
+ }
+ }
+ } else if (var->nonstd == FB_NONSTD_HAM) {
+ if (par->bpp < 6)
+ par->bpp = 6;
+ if (par->bpp != 6) {
+ if (par->bpp < 8)
+ par->bpp = 8;
+ if (par->bpp != 8 || !IS_AGA) {
+ DPRINTK("invalid bpp for ham mode\n");
+ return -EINVAL;
+ }
+ }
+ } else {
+ DPRINTK("unknown nonstd mode\n");
+ return -EINVAL;
+ }
/*
- * Internal routines
+ * FB_VMODE_SMOOTH_XPAN will be cleared, if one of the folloing
+ * checks failed and smooth scrolling is not possible
*/
-static int flash_cursor(void);
-static irqreturn_t amifb_interrupt(int irq, void *dev_id);
-static u_long chipalloc(u_long size);
-static void chipfree(void);
+ par->vmode = var->vmode | FB_VMODE_SMOOTH_XPAN;
+ switch (par->vmode & FB_VMODE_MASK) {
+ case FB_VMODE_INTERLACED:
+ line_shift = 0;
+ break;
+ case FB_VMODE_NONINTERLACED:
+ line_shift = 1;
+ break;
+ case FB_VMODE_DOUBLE:
+ if (!IS_AGA) {
+ DPRINTK("double mode only possible with aga\n");
+ return -EINVAL;
+ }
+ line_shift = 2;
+ break;
+ default:
+ DPRINTK("unknown video mode\n");
+ return -EINVAL;
+ break;
+ }
+ par->line_shift = line_shift;
/*
- * Hardware routines
+ * Vertical and Horizontal Timings
+ */
+
+ xres_n = par->xres << clk_shift;
+ yres_n = par->yres << line_shift;
+ par->htotal = down8((var->left_margin + par->xres + var->right_margin +
+ var->hsync_len) << clk_shift);
+ par->vtotal =
+ down2(((var->upper_margin + par->yres + var->lower_margin +
+ var->vsync_len) << line_shift) + 1);
+
+ if (IS_AGA)
+ par->bplcon3 = sprpixmode[clk_shift];
+ else
+ par->bplcon3 = 0;
+ if (var->sync & FB_SYNC_BROADCAST) {
+ par->diwstop_h = par->htotal -
+ ((var->right_margin - var->hsync_len) << clk_shift);
+ if (IS_AGA)
+ par->diwstop_h += mod4(var->hsync_len);
+ else
+ par->diwstop_h = down4(par->diwstop_h);
+
+ par->diwstrt_h = par->diwstop_h - xres_n;
+ par->diwstop_v = par->vtotal -
+ ((var->lower_margin - var->vsync_len) << line_shift);
+ par->diwstrt_v = par->diwstop_v - yres_n;
+ if (par->diwstop_h >= par->htotal + 8) {
+ DPRINTK("invalid diwstop_h\n");
+ return -EINVAL;
+ }
+ if (par->diwstop_v > par->vtotal) {
+ DPRINTK("invalid diwstop_v\n");
+ return -EINVAL;
+ }
+
+ if (!IS_OCS) {
+ /* Initialize sync with some reasonable values for pwrsave */
+ par->hsstrt = 160;
+ par->hsstop = 320;
+ par->vsstrt = 30;
+ par->vsstop = 34;
+ } else {
+ par->hsstrt = 0;
+ par->hsstop = 0;
+ par->vsstrt = 0;
+ par->vsstop = 0;
+ }
+ if (par->vtotal > (PAL_VTOTAL + NTSC_VTOTAL) / 2) {
+ /* PAL video mode */
+ if (par->htotal != PAL_HTOTAL) {
+ DPRINTK("htotal invalid for pal\n");
+ return -EINVAL;
+ }
+ if (par->diwstrt_h < PAL_DIWSTRT_H) {
+ DPRINTK("diwstrt_h too low for pal\n");
+ return -EINVAL;
+ }
+ if (par->diwstrt_v < PAL_DIWSTRT_V) {
+ DPRINTK("diwstrt_v too low for pal\n");
+ return -EINVAL;
+ }
+ htotal = PAL_HTOTAL>>clk_shift;
+ vtotal = PAL_VTOTAL>>1;
+ if (!IS_OCS) {
+ par->beamcon0 = BMC0_PAL;
+ par->bplcon3 |= BPC3_BRDRBLNK;
+ } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
+ AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
+ par->beamcon0 = BMC0_PAL;
+ par->hsstop = 1;
+ } else if (amiga_vblank != 50) {
+ DPRINTK("pal not supported by this chipset\n");
+ return -EINVAL;
+ }
+ } else {
+ /* NTSC video mode
+ * In the AGA chipset seems to be hardware bug with BPC3_BRDRBLNK
+ * and NTSC activated, so than better let diwstop_h <= 1812
+ */
+ if (par->htotal != NTSC_HTOTAL) {
+ DPRINTK("htotal invalid for ntsc\n");
+ return -EINVAL;
+ }
+ if (par->diwstrt_h < NTSC_DIWSTRT_H) {
+ DPRINTK("diwstrt_h too low for ntsc\n");
+ return -EINVAL;
+ }
+ if (par->diwstrt_v < NTSC_DIWSTRT_V) {
+ DPRINTK("diwstrt_v too low for ntsc\n");
+ return -EINVAL;
+ }
+ htotal = NTSC_HTOTAL>>clk_shift;
+ vtotal = NTSC_VTOTAL>>1;
+ if (!IS_OCS) {
+ par->beamcon0 = 0;
+ par->bplcon3 |= BPC3_BRDRBLNK;
+ } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
+ AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
+ par->beamcon0 = 0;
+ par->hsstop = 1;
+ } else if (amiga_vblank != 60) {
+ DPRINTK("ntsc not supported by this chipset\n");
+ return -EINVAL;
+ }
+ }
+ if (IS_OCS) {
+ if (par->diwstrt_h >= 1024 || par->diwstop_h < 1024 ||
+ par->diwstrt_v >= 512 || par->diwstop_v < 256) {
+ DPRINTK("invalid position for display on ocs\n");
+ return -EINVAL;
+ }
+ }
+ } else if (!IS_OCS) {
+ /* Programmable video mode */
+ par->hsstrt = var->right_margin << clk_shift;
+ par->hsstop = (var->right_margin + var->hsync_len) << clk_shift;
+ par->diwstop_h = par->htotal - mod8(par->hsstrt) + 8 - (1 << clk_shift);
+ if (!IS_AGA)
+ par->diwstop_h = down4(par->diwstop_h) - 16;
+ par->diwstrt_h = par->diwstop_h - xres_n;
+ par->hbstop = par->diwstrt_h + 4;
+ par->hbstrt = par->diwstop_h + 4;
+ if (par->hbstrt >= par->htotal + 8)
+ par->hbstrt -= par->htotal;
+ par->hcenter = par->hsstrt + (par->htotal >> 1);
+ par->vsstrt = var->lower_margin << line_shift;
+ par->vsstop = (var->lower_margin + var->vsync_len) << line_shift;
+ par->diwstop_v = par->vtotal;
+ if ((par->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
+ par->diwstop_v -= 2;
+ par->diwstrt_v = par->diwstop_v - yres_n;
+ par->vbstop = par->diwstrt_v - 2;
+ par->vbstrt = par->diwstop_v - 2;
+ if (par->vtotal > 2048) {
+ DPRINTK("vtotal too high\n");
+ return -EINVAL;
+ }
+ if (par->htotal > 2048) {
+ DPRINTK("htotal too high\n");
+ return -EINVAL;
+ }
+ par->bplcon3 |= BPC3_EXTBLKEN;
+ par->beamcon0 = BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS |
+ BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARBEAMEN |
+ BMC0_PAL | BMC0_VARCSYEN;
+ if (var->sync & FB_SYNC_HOR_HIGH_ACT)
+ par->beamcon0 |= BMC0_HSYTRUE;
+ if (var->sync & FB_SYNC_VERT_HIGH_ACT)
+ par->beamcon0 |= BMC0_VSYTRUE;
+ if (var->sync & FB_SYNC_COMP_HIGH_ACT)
+ par->beamcon0 |= BMC0_CSYTRUE;
+ htotal = par->htotal>>clk_shift;
+ vtotal = par->vtotal>>1;
+ } else {
+ DPRINTK("only broadcast modes possible for ocs\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Checking the DMA timing
+ */
+
+ fconst = 16 << maxfmode << clk_shift;
+
+ /*
+ * smallest window start value without turn off other dma cycles
+ * than sprite1-7, unless you change min_fstrt
+ */
+
+
+ fsize = ((maxfmode + clk_shift <= 1) ? fconst : 64);
+ fstrt = downx(fconst, par->diwstrt_h - 4) - fsize;
+ if (fstrt < min_fstrt) {
+ DPRINTK("fetch start too low\n");
+ return -EINVAL;
+ }
+
+ /*
+ * smallest window start value where smooth scrolling is possible
+ */
+
+ fstrt = downx(fconst, par->diwstrt_h - fconst + (1 << clk_shift) - 4) -
+ fsize;
+ if (fstrt < min_fstrt)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ maxfetchstop = down16(par->htotal - 80);
+
+ fstrt = downx(fconst, par->diwstrt_h - 4) - 64 - fconst;
+ fsize = upx(fconst, xres_n +
+ modx(fconst, downx(1 << clk_shift, par->diwstrt_h - 4)));
+ if (fstrt + fsize > maxfetchstop)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ fsize = upx(fconst, xres_n);
+ if (fstrt + fsize > maxfetchstop) {
+ DPRINTK("fetch stop too high\n");
+ return -EINVAL;
+ }
+
+ if (maxfmode + clk_shift <= 1) {
+ fsize = up64(xres_n + fconst - 1);
+ if (min_fstrt + fsize - 64 > maxfetchstop)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ fsize = up64(xres_n);
+ if (min_fstrt + fsize - 64 > maxfetchstop) {
+ DPRINTK("fetch size too high\n");
+ return -EINVAL;
+ }
+
+ fsize -= 64;
+ } else
+ fsize -= fconst;
+
+ /*
+ * Check if there is enough time to update the bitplane pointers for ywrap
+ */
+
+ if (par->htotal - fsize - 64 < par->bpp * 64)
+ par->vmode &= ~FB_VMODE_YWRAP;
+
+ /*
+ * Bitplane calculations and check the Memory Requirements
+ */
+
+ if (amifb_ilbm) {
+ par->next_plane = div8(upx(16 << maxfmode, par->vxres));
+ par->next_line = par->bpp * par->next_plane;
+ if (par->next_line * par->vyres > fb_info.fix.smem_len) {
+ DPRINTK("too few video mem\n");
+ return -EINVAL;
+ }
+ } else {
+ par->next_line = div8(upx(16 << maxfmode, par->vxres));
+ par->next_plane = par->vyres * par->next_line;
+ if (par->next_plane * par->bpp > fb_info.fix.smem_len) {
+ DPRINTK("too few video mem\n");
+ return -EINVAL;
+ }
+ }
+
+ /*
+ * Hardware Register Values
+ */
+
+ par->bplcon0 = BPC0_COLOR | bplpixmode[clk_shift];
+ if (!IS_OCS)
+ par->bplcon0 |= BPC0_ECSENA;
+ if (par->bpp == 8)
+ par->bplcon0 |= BPC0_BPU3;
+ else
+ par->bplcon0 |= par->bpp << 12;
+ if (var->nonstd == FB_NONSTD_HAM)
+ par->bplcon0 |= BPC0_HAM;
+ if (var->sync & FB_SYNC_EXT)
+ par->bplcon0 |= BPC0_ERSY;
+
+ if (IS_AGA)
+ par->fmode = bplfetchmode[maxfmode];
+
+ switch (par->vmode & FB_VMODE_MASK) {
+ case FB_VMODE_INTERLACED:
+ par->bplcon0 |= BPC0_LACE;
+ break;
+ case FB_VMODE_DOUBLE:
+ if (IS_AGA)
+ par->fmode |= FMODE_SSCAN2 | FMODE_BSCAN2;
+ break;
+ }
+
+ if (!((par->vmode ^ var->vmode) & FB_VMODE_YWRAP)) {
+ par->xoffset = var->xoffset;
+ par->yoffset = var->yoffset;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if (par->xoffset || par->yoffset < 0 ||
+ par->yoffset >= par->vyres)
+ par->xoffset = par->yoffset = 0;
+ } else {
+ if (par->xoffset < 0 ||
+ par->xoffset > upx(16 << maxfmode, par->vxres - par->xres) ||
+ par->yoffset < 0 || par->yoffset > par->vyres - par->yres)
+ par->xoffset = par->yoffset = 0;
+ }
+ } else
+ par->xoffset = par->yoffset = 0;
+
+ par->crsr.crsr_x = par->crsr.crsr_y = 0;
+ par->crsr.spot_x = par->crsr.spot_y = 0;
+ par->crsr.height = par->crsr.width = 0;
+
+ return 0;
+}
+
+ /*
+ * Fill the `var' structure based on the values in `par' and maybe
+ * other values read out of the hardware.
*/
-static int ami_decode_var(struct fb_var_screeninfo *var,
- struct amifb_par *par);
static int ami_encode_var(struct fb_var_screeninfo *var,
- struct amifb_par *par);
-static void ami_pan_var(struct fb_var_screeninfo *var);
-static int ami_update_par(void);
-static void ami_update_display(void);
-static void ami_init_display(void);
-static void ami_do_blank(void);
-static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix);
-static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data);
-static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data);
-static int ami_get_cursorstate(struct fb_cursorstate *state);
-static int ami_set_cursorstate(struct fb_cursorstate *state);
-static void ami_set_sprite(void);
-static void ami_init_copper(void);
-static void ami_reinit_copper(void);
-static void ami_build_copper(void);
-static void ami_rebuild_copper(void);
+ struct amifb_par *par)
+{
+ u_short clk_shift, line_shift;
+ memset(var, 0, sizeof(struct fb_var_screeninfo));
+
+ clk_shift = par->clk_shift;
+ line_shift = par->line_shift;
+
+ var->xres = par->xres;
+ var->yres = par->yres;
+ var->xres_virtual = par->vxres;
+ var->yres_virtual = par->vyres;
+ var->xoffset = par->xoffset;
+ var->yoffset = par->yoffset;
+
+ var->bits_per_pixel = par->bpp;
+ var->grayscale = 0;
+
+ var->red.offset = 0;
+ var->red.msb_right = 0;
+ var->red.length = par->bpp;
+ if (par->bplcon0 & BPC0_HAM)
+ var->red.length -= 2;
+ var->blue = var->green = var->red;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+
+ if (par->bplcon0 & BPC0_HAM)
+ var->nonstd = FB_NONSTD_HAM;
+ else
+ var->nonstd = 0;
+ var->activate = 0;
+
+ var->height = -1;
+ var->width = -1;
+
+ var->pixclock = pixclock[clk_shift];
+
+ if (IS_AGA && par->fmode & FMODE_BSCAN2)
+ var->vmode = FB_VMODE_DOUBLE;
+ else if (par->bplcon0 & BPC0_LACE)
+ var->vmode = FB_VMODE_INTERLACED;
+ else
+ var->vmode = FB_VMODE_NONINTERLACED;
+
+ if (!IS_OCS && par->beamcon0 & BMC0_VARBEAMEN) {
+ var->hsync_len = (par->hsstop - par->hsstrt)>>clk_shift;
+ var->right_margin = par->hsstrt>>clk_shift;
+ var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
+ var->vsync_len = (par->vsstop - par->vsstrt)>>line_shift;
+ var->lower_margin = par->vsstrt>>line_shift;
+ var->upper_margin = (par->vtotal>>line_shift) - var->yres - var->lower_margin - var->vsync_len;
+ var->sync = 0;
+ if (par->beamcon0 & BMC0_HSYTRUE)
+ var->sync |= FB_SYNC_HOR_HIGH_ACT;
+ if (par->beamcon0 & BMC0_VSYTRUE)
+ var->sync |= FB_SYNC_VERT_HIGH_ACT;
+ if (par->beamcon0 & BMC0_CSYTRUE)
+ var->sync |= FB_SYNC_COMP_HIGH_ACT;
+ } else {
+ var->sync = FB_SYNC_BROADCAST;
+ var->hsync_len = (152>>clk_shift) + mod4(par->diwstop_h);
+ var->right_margin = ((par->htotal - down4(par->diwstop_h))>>clk_shift) + var->hsync_len;
+ var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
+ var->vsync_len = 4>>line_shift;
+ var->lower_margin = ((par->vtotal - par->diwstop_v)>>line_shift) + var->vsync_len;
+ var->upper_margin = (((par->vtotal - 2)>>line_shift) + 1) - var->yres -
+ var->lower_margin - var->vsync_len;
+ }
+
+ if (par->bplcon0 & BPC0_ERSY)
+ var->sync |= FB_SYNC_EXT;
+ if (par->vmode & FB_VMODE_YWRAP)
+ var->vmode |= FB_VMODE_YWRAP;
+
+ return 0;
+}
+
+
+ /*
+ * Update hardware
+ */
+
+static int ami_update_par(void)
+{
+ struct amifb_par *par = ¤tpar;
+ short clk_shift, vshift, fstrt, fsize, fstop, fconst, shift, move, mod;
+
+ clk_shift = par->clk_shift;
+
+ if (!(par->vmode & FB_VMODE_SMOOTH_XPAN))
+ par->xoffset = upx(16 << maxfmode, par->xoffset);
+
+ fconst = 16 << maxfmode << clk_shift;
+ vshift = modx(16 << maxfmode, par->xoffset);
+ fstrt = par->diwstrt_h - (vshift << clk_shift) - 4;
+ fsize = (par->xres + vshift) << clk_shift;
+ shift = modx(fconst, fstrt);
+ move = downx(2 << maxfmode, div8(par->xoffset));
+ if (maxfmode + clk_shift > 1) {
+ fstrt = downx(fconst, fstrt) - 64;
+ fsize = upx(fconst, fsize);
+ fstop = fstrt + fsize - fconst;
+ } else {
+ mod = fstrt = downx(fconst, fstrt) - fconst;
+ fstop = fstrt + upx(fconst, fsize) - 64;
+ fsize = up64(fsize);
+ fstrt = fstop - fsize + 64;
+ if (fstrt < min_fstrt) {
+ fstop += min_fstrt - fstrt;
+ fstrt = min_fstrt;
+ }
+ move = move - div8((mod - fstrt)>>clk_shift);
+ }
+ mod = par->next_line - div8(fsize>>clk_shift);
+ par->ddfstrt = fstrt;
+ par->ddfstop = fstop;
+ par->bplcon1 = hscroll2hw(shift);
+ par->bpl2mod = mod;
+ if (par->bplcon0 & BPC0_LACE)
+ par->bpl2mod += par->next_line;
+ if (IS_AGA && (par->fmode & FMODE_BSCAN2))
+ par->bpl1mod = -div8(fsize>>clk_shift);
+ else
+ par->bpl1mod = par->bpl2mod;
+
+ if (par->yoffset) {
+ par->bplpt0 = fb_info.fix.smem_start +
+ par->next_line * par->yoffset + move;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if (par->yoffset > par->vyres - par->yres) {
+ par->bplpt0wrap = fb_info.fix.smem_start + move;
+ if (par->bplcon0 & BPC0_LACE &&
+ mod2(par->diwstrt_v + par->vyres -
+ par->yoffset))
+ par->bplpt0wrap += par->next_line;
+ }
+ }
+ } else
+ par->bplpt0 = fb_info.fix.smem_start + move;
+
+ if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v))
+ par->bplpt0 += par->next_line;
+
+ return 0;
+}
+
+
+ /*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ * in `var'.
+ */
+
+static void ami_pan_var(struct fb_var_screeninfo *var)
+{
+ struct amifb_par *par = ¤tpar;
+
+ par->xoffset = var->xoffset;
+ par->yoffset = var->yoffset;
+ if (var->vmode & FB_VMODE_YWRAP)
+ par->vmode |= FB_VMODE_YWRAP;
+ else
+ par->vmode &= ~FB_VMODE_YWRAP;
+
+ do_vmode_pan = 0;
+ ami_update_par();
+ do_vmode_pan = 1;
+}
+
+
+static void ami_update_display(void)
+{
+ struct amifb_par *par = ¤tpar;
+
+ custom.bplcon1 = par->bplcon1;
+ custom.bpl1mod = par->bpl1mod;
+ custom.bpl2mod = par->bpl2mod;
+ custom.ddfstrt = ddfstrt2hw(par->ddfstrt);
+ custom.ddfstop = ddfstop2hw(par->ddfstop);
+}
+
+ /*
+ * Change the video mode (called by VBlank interrupt)
+ */
+
+static void ami_init_display(void)
+{
+ struct amifb_par *par = ¤tpar;
+ int i;
+
+ custom.bplcon0 = par->bplcon0 & ~BPC0_LACE;
+ custom.bplcon2 = (IS_OCS ? 0 : BPC2_KILLEHB) | BPC2_PF2P2 | BPC2_PF1P2;
+ if (!IS_OCS) {
+ custom.bplcon3 = par->bplcon3;
+ if (IS_AGA)
+ custom.bplcon4 = BPC4_ESPRM4 | BPC4_OSPRM4;
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ custom.htotal = htotal2hw(par->htotal);
+ custom.hbstrt = hbstrt2hw(par->hbstrt);
+ custom.hbstop = hbstop2hw(par->hbstop);
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.hcenter = hcenter2hw(par->hcenter);
+ custom.vtotal = vtotal2hw(par->vtotal);
+ custom.vbstrt = vbstrt2hw(par->vbstrt);
+ custom.vbstop = vbstop2hw(par->vbstop);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstop2hw(par->vsstop);
+ }
+ }
+ if (!IS_OCS || par->hsstop)
+ custom.beamcon0 = par->beamcon0;
+ if (IS_AGA)
+ custom.fmode = par->fmode;
+
+ /*
+ * The minimum period for audio depends on htotal
+ */
+
+ amiga_audio_min_period = div16(par->htotal);
+
+ is_lace = par->bplcon0 & BPC0_LACE ? 1 : 0;
+#if 1
+ if (is_lace) {
+ i = custom.vposr >> 15;
+ } else {
+ custom.vposw = custom.vposr | 0x8000;
+ i = 1;
+ }
+#else
+ i = 1;
+ custom.vposw = custom.vposr | 0x8000;
+#endif
+ custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][i]);
+}
+
+ /*
+ * (Un)Blank the screen (called by VBlank interrupt)
+ */
+
+static void ami_do_blank(void)
+{
+ struct amifb_par *par = ¤tpar;
+#if defined(CONFIG_FB_AMIGA_AGA)
+ u_short bplcon3 = par->bplcon3;
+#endif
+ u_char red, green, blue;
+
+ if (do_blank > 0) {
+ custom.dmacon = DMAF_RASTER | DMAF_SPRITE;
+ red = green = blue = 0;
+ if (!IS_OCS && do_blank > 1) {
+ switch (do_blank) {
+ case FB_BLANK_VSYNC_SUSPEND:
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.vsstrt = vsstrt2hw(par->vtotal + 4);
+ custom.vsstop = vsstop2hw(par->vtotal + 4);
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ custom.hsstrt = hsstrt2hw(par->htotal + 16);
+ custom.hsstop = hsstop2hw(par->htotal + 16);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstrt2hw(par->vsstop);
+ break;
+ case FB_BLANK_POWERDOWN:
+ custom.hsstrt = hsstrt2hw(par->htotal + 16);
+ custom.hsstop = hsstop2hw(par->htotal + 16);
+ custom.vsstrt = vsstrt2hw(par->vtotal + 4);
+ custom.vsstop = vsstop2hw(par->vtotal + 4);
+ break;
+ }
+ if (!(par->beamcon0 & BMC0_VARBEAMEN)) {
+ custom.htotal = htotal2hw(par->htotal);
+ custom.vtotal = vtotal2hw(par->vtotal);
+ custom.beamcon0 = BMC0_HARDDIS | BMC0_VARBEAMEN |
+ BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARCSYEN;
+ }
+ }
+ } else {
+ custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE;
+ red = red0;
+ green = green0;
+ blue = blue0;
+ if (!IS_OCS) {
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstop2hw(par->vsstop);
+ custom.beamcon0 = par->beamcon0;
+ }
+ }
+#if defined(CONFIG_FB_AMIGA_AGA)
+ if (IS_AGA) {
+ custom.bplcon3 = bplcon3;
+ custom.color[0] = rgb2hw8_high(red, green, blue);
+ custom.bplcon3 = bplcon3 | BPC3_LOCT;
+ custom.color[0] = rgb2hw8_low(red, green, blue);
+ custom.bplcon3 = bplcon3;
+ } else
+#endif
+#if defined(CONFIG_FB_AMIGA_ECS)
+ if (par->bplcon0 & BPC0_SHRES) {
+ u_short color, mask;
+ int i;
+
+ mask = 0x3333;
+ color = rgb2hw2(red, green, blue);
+ for (i = 12; i >= 0; i -= 4)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ mask <<= 2; color >>= 2;
+ for (i = 3; i >= 0; i--)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ } else
+#endif
+ custom.color[0] = rgb2hw4(red, green, blue);
+ is_blanked = do_blank > 0 ? do_blank : 0;
+}
+
+static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix)
+{
+ struct amifb_par *par = ¤tpar;
+
+ fix->crsr_width = fix->crsr_xsize = par->crsr.width;
+ fix->crsr_height = fix->crsr_ysize = par->crsr.height;
+ fix->crsr_color1 = 17;
+ fix->crsr_color2 = 18;
+ return 0;
+}
+
+static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
+{
+ struct amifb_par *par = ¤tpar;
+ register u_short *lspr, *sspr;
+#ifdef __mc68000__
+ register u_long datawords asm ("d2");
+#else
+ register u_long datawords;
+#endif
+ register short delta;
+ register u_char color;
+ short height, width, bits, words;
+ int size, alloc;
+
+ size = par->crsr.height * par->crsr.width;
+ alloc = var->height * var->width;
+ var->height = par->crsr.height;
+ var->width = par->crsr.width;
+ var->xspot = par->crsr.spot_x;
+ var->yspot = par->crsr.spot_y;
+ if (size > var->height * var->width)
+ return -ENAMETOOLONG;
+ if (!access_ok(VERIFY_WRITE, data, size))
+ return -EFAULT;
+ delta = 1 << par->crsr.fmode;
+ lspr = lofsprite + (delta << 1);
+ if (par->bplcon0 & BPC0_LACE)
+ sspr = shfsprite + (delta << 1);
+ else
+ sspr = NULL;
+ for (height = (short)var->height - 1; height >= 0; height--) {
+ bits = 0; words = delta; datawords = 0;
+ for (width = (short)var->width - 1; width >= 0; width--) {
+ if (bits == 0) {
+ bits = 16; --words;
+#ifdef __mc68000__
+ asm volatile ("movew %1@(%3:w:2),%0 ; swap %0 ; movew %1@+,%0"
+ : "=d" (datawords), "=a" (lspr) : "1" (lspr), "d" (delta));
+#else
+ datawords = (*(lspr + delta) << 16) | (*lspr++);
+#endif
+ }
+ --bits;
+#ifdef __mc68000__
+ asm volatile (
+ "clrb %0 ; swap %1 ; lslw #1,%1 ; roxlb #1,%0 ; "
+ "swap %1 ; lslw #1,%1 ; roxlb #1,%0"
+ : "=d" (color), "=d" (datawords) : "1" (datawords));
+#else
+ color = (((datawords >> 30) & 2)
+ | ((datawords >> 15) & 1));
+ datawords <<= 1;
+#endif
+ put_user(color, data++);
+ }
+ if (bits > 0) {
+ --words; ++lspr;
+ }
+ while (--words >= 0)
+ ++lspr;
+#ifdef __mc68000__
+ asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
+ : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
+#else
+ lspr += delta;
+ if (sspr) {
+ u_short *tmp = lspr;
+ lspr = sspr;
+ sspr = tmp;
+ }
+#endif
+ }
+ return 0;
+}
+
+static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
+{
+ struct amifb_par *par = ¤tpar;
+ register u_short *lspr, *sspr;
+#ifdef __mc68000__
+ register u_long datawords asm ("d2");
+#else
+ register u_long datawords;
+#endif
+ register short delta;
+ u_short fmode;
+ short height, width, bits, words;
+
+ if (!var->width)
+ return -EINVAL;
+ else if (var->width <= 16)
+ fmode = TAG_FMODE_1;
+ else if (var->width <= 32)
+ fmode = TAG_FMODE_2;
+ else if (var->width <= 64)
+ fmode = TAG_FMODE_4;
+ else
+ return -EINVAL;
+ if (fmode > maxfmode)
+ return -EINVAL;
+ if (!var->height)
+ return -EINVAL;
+ if (!access_ok(VERIFY_READ, data, var->width * var->height))
+ return -EFAULT;
+ delta = 1 << fmode;
+ lofsprite = shfsprite = (u_short *)spritememory;
+ lspr = lofsprite + (delta << 1);
+ if (par->bplcon0 & BPC0_LACE) {
+ if (((var->height + 4) << fmode << 2) > SPRITEMEMSIZE)
+ return -EINVAL;
+ memset(lspr, 0, (var->height + 4) << fmode << 2);
+ shfsprite += ((var->height + 5)&-2) << fmode;
+ sspr = shfsprite + (delta << 1);
+ } else {
+ if (((var->height + 2) << fmode << 2) > SPRITEMEMSIZE)
+ return -EINVAL;
+ memset(lspr, 0, (var->height + 2) << fmode << 2);
+ sspr = NULL;
+ }
+ for (height = (short)var->height - 1; height >= 0; height--) {
+ bits = 16; words = delta; datawords = 0;
+ for (width = (short)var->width - 1; width >= 0; width--) {
+ unsigned long tdata = 0;
+ get_user(tdata, data);
+ data++;
+#ifdef __mc68000__
+ asm volatile (
+ "lsrb #1,%2 ; roxlw #1,%0 ; swap %0 ; "
+ "lsrb #1,%2 ; roxlw #1,%0 ; swap %0"
+ : "=d" (datawords)
+ : "0" (datawords), "d" (tdata));
+#else
+ datawords = ((datawords << 1) & 0xfffefffe);
+ datawords |= tdata & 1;
+ datawords |= (tdata & 2) << (16 - 1);
+#endif
+ if (--bits == 0) {
+ bits = 16; --words;
+#ifdef __mc68000__
+ asm volatile ("swap %2 ; movew %2,%0@(%3:w:2) ; swap %2 ; movew %2,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta));
+#else
+ *(lspr + delta) = (u_short) (datawords >> 16);
+ *lspr++ = (u_short) (datawords & 0xffff);
+#endif
+ }
+ }
+ if (bits < 16) {
+ --words;
+#ifdef __mc68000__
+ asm volatile (
+ "swap %2 ; lslw %4,%2 ; movew %2,%0@(%3:w:2) ; "
+ "swap %2 ; lslw %4,%2 ; movew %2,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta), "d" (bits));
+#else
+ *(lspr + delta) = (u_short) (datawords >> (16 + bits));
+ *lspr++ = (u_short) ((datawords & 0x0000ffff) >> bits);
+#endif
+ }
+ while (--words >= 0) {
+#ifdef __mc68000__
+ asm volatile ("moveql #0,%%d0 ; movew %%d0,%0@(%2:w:2) ; movew %%d0,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (delta) : "d0");
+#else
+ *(lspr + delta) = 0;
+ *lspr++ = 0;
+#endif
+ }
+#ifdef __mc68000__
+ asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
+ : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
+#else
+ lspr += delta;
+ if (sspr) {
+ u_short *tmp = lspr;
+ lspr = sspr;
+ sspr = tmp;
+ }
+#endif
+ }
+ par->crsr.height = var->height;
+ par->crsr.width = var->width;
+ par->crsr.spot_x = var->xspot;
+ par->crsr.spot_y = var->yspot;
+ par->crsr.fmode = fmode;
+ if (IS_AGA) {
+ par->fmode &= ~(FMODE_SPAGEM | FMODE_SPR32);
+ par->fmode |= sprfetchmode[fmode];
+ custom.fmode = par->fmode;
+ }
+ return 0;
+}
+
+static int ami_get_cursorstate(struct fb_cursorstate *state)
+{
+ struct amifb_par *par = ¤tpar;
+
+ state->xoffset = par->crsr.crsr_x;
+ state->yoffset = par->crsr.crsr_y;
+ state->mode = cursormode;
+ return 0;
+}
+
+static int ami_set_cursorstate(struct fb_cursorstate *state)
+{
+ struct amifb_par *par = ¤tpar;
+
+ par->crsr.crsr_x = state->xoffset;
+ par->crsr.crsr_y = state->yoffset;
+ if ((cursormode = state->mode) == FB_CURSOR_OFF)
+ cursorstate = -1;
+ do_cursor = 1;
+ return 0;
+}
+
+static void ami_set_sprite(void)
+{
+ struct amifb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_short hs, vs, ve;
+ u_long pl, ps, pt;
+ short mx, my;
+
+ cops = copdisplay.list[currentcop][0];
+ copl = copdisplay.list[currentcop][1];
+ ps = pl = ZTWO_PADDR(dummysprite);
+ mx = par->crsr.crsr_x - par->crsr.spot_x;
+ my = par->crsr.crsr_y - par->crsr.spot_y;
+ if (!(par->vmode & FB_VMODE_YWRAP)) {
+ mx -= par->xoffset;
+ my -= par->yoffset;
+ }
+ if (!is_blanked && cursorstate > 0 && par->crsr.height > 0 &&
+ mx > -(short)par->crsr.width && mx < par->xres &&
+ my > -(short)par->crsr.height && my < par->yres) {
+ pl = ZTWO_PADDR(lofsprite);
+ hs = par->diwstrt_h + (mx << par->clk_shift) - 4;
+ vs = par->diwstrt_v + (my << par->line_shift);
+ ve = vs + (par->crsr.height << par->line_shift);
+ if (par->bplcon0 & BPC0_LACE) {
+ ps = ZTWO_PADDR(shfsprite);
+ lofsprite[0] = spr2hw_pos(vs, hs);
+ shfsprite[0] = spr2hw_pos(vs + 1, hs);
+ if (mod2(vs)) {
+ lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
+ shfsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs + 1, hs, ve + 1);
+ pt = pl; pl = ps; ps = pt;
+ } else {
+ lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve + 1);
+ shfsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs + 1, hs, ve);
+ }
+ } else {
+ lofsprite[0] = spr2hw_pos(vs, hs) | (IS_AGA && (par->fmode & FMODE_BSCAN2) ? 0x80 : 0);
+ lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
+ }
+ }
+ copl[cop_spr0ptrh].w[1] = highw(pl);
+ copl[cop_spr0ptrl].w[1] = loww(pl);
+ if (par->bplcon0 & BPC0_LACE) {
+ cops[cop_spr0ptrh].w[1] = highw(ps);
+ cops[cop_spr0ptrl].w[1] = loww(ps);
+ }
+}
+
+
+ /*
+ * Initialise the Copper Initialisation List
+ */
+
+static void __init ami_init_copper(void)
+{
+ copins *cop = copdisplay.init;
+ u_long p;
+ int i;
+
+ if (!IS_OCS) {
+ (cop++)->l = CMOVE(BPC0_COLOR | BPC0_SHRES | BPC0_ECSENA, bplcon0);
+ (cop++)->l = CMOVE(0x0181, diwstrt);
+ (cop++)->l = CMOVE(0x0281, diwstop);
+ (cop++)->l = CMOVE(0x0000, diwhigh);
+ } else
+ (cop++)->l = CMOVE(BPC0_COLOR, bplcon0);
+ p = ZTWO_PADDR(dummysprite);
+ for (i = 0; i < 8; i++) {
+ (cop++)->l = CMOVE(0, spr[i].pos);
+ (cop++)->l = CMOVE(highw(p), sprpt[i]);
+ (cop++)->l = CMOVE2(loww(p), sprpt[i]);
+ }
+
+ (cop++)->l = CMOVE(IF_SETCLR | IF_COPER, intreq);
+ copdisplay.wait = cop;
+ (cop++)->l = CEND;
+ (cop++)->l = CMOVE(0, copjmp2);
+ cop->l = CEND;
+
+ custom.cop1lc = (u_short *)ZTWO_PADDR(copdisplay.init);
+ custom.copjmp1 = 0;
+}
+
+static void ami_reinit_copper(void)
+{
+ struct amifb_par *par = ¤tpar;
+
+ copdisplay.init[cip_bplcon0].w[1] = ~(BPC0_BPU3 | BPC0_BPU2 | BPC0_BPU1 | BPC0_BPU0) & par->bplcon0;
+ copdisplay.wait->l = CWAIT(32, par->diwstrt_v - 4);
+}
+
+
+ /*
+ * Rebuild the Copper List
+ *
+ * We only change the things that are not static
+ */
+
+static void ami_rebuild_copper(void)
+{
+ struct amifb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_short line, h_end1, h_end2;
+ short i;
+ u_long p;
+
+ if (IS_AGA && maxfmode + par->clk_shift == 0)
+ h_end1 = par->diwstrt_h - 64;
+ else
+ h_end1 = par->htotal - 32;
+ h_end2 = par->ddfstop + 64;
+
+ ami_set_sprite();
+
+ copl = copdisplay.rebuild[1];
+ p = par->bplpt0;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if ((par->vyres - par->yoffset) != 1 || !mod2(par->diwstrt_v)) {
+ if (par->yoffset > par->vyres - par->yres) {
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (copl++)->l = CMOVE(highw(p), bplpt[i]);
+ (copl++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ line = par->diwstrt_v + ((par->vyres - par->yoffset) << par->line_shift) - 1;
+ while (line >= 512) {
+ (copl++)->l = CWAIT(h_end1, 510);
+ line -= 512;
+ }
+ if (line >= 510 && IS_AGA && maxfmode + par->clk_shift == 0)
+ (copl++)->l = CWAIT(h_end1, line);
+ else
+ (copl++)->l = CWAIT(h_end2, line);
+ p = par->bplpt0wrap;
+ }
+ } else
+ p = par->bplpt0wrap;
+ }
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (copl++)->l = CMOVE(highw(p), bplpt[i]);
+ (copl++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ copl->l = CEND;
+
+ if (par->bplcon0 & BPC0_LACE) {
+ cops = copdisplay.rebuild[0];
+ p = par->bplpt0;
+ if (mod2(par->diwstrt_v))
+ p -= par->next_line;
+ else
+ p += par->next_line;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if ((par->vyres - par->yoffset) != 1 || mod2(par->diwstrt_v)) {
+ if (par->yoffset > par->vyres - par->yres + 1) {
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (cops++)->l = CMOVE(highw(p), bplpt[i]);
+ (cops++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ line = par->diwstrt_v + ((par->vyres - par->yoffset) << par->line_shift) - 2;
+ while (line >= 512) {
+ (cops++)->l = CWAIT(h_end1, 510);
+ line -= 512;
+ }
+ if (line > 510 && IS_AGA && maxfmode + par->clk_shift == 0)
+ (cops++)->l = CWAIT(h_end1, line);
+ else
+ (cops++)->l = CWAIT(h_end2, line);
+ p = par->bplpt0wrap;
+ if (mod2(par->diwstrt_v + par->vyres -
+ par->yoffset))
+ p -= par->next_line;
+ else
+ p += par->next_line;
+ }
+ } else
+ p = par->bplpt0wrap - par->next_line;
+ }
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (cops++)->l = CMOVE(highw(p), bplpt[i]);
+ (cops++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ cops->l = CEND;
+ }
+}
+
+
+ /*
+ * Build the Copper List
+ */
+
+static void ami_build_copper(void)
+{
+ struct amifb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_long p;
+
+ currentcop = 1 - currentcop;
+
+ copl = copdisplay.list[currentcop][1];
+
+ (copl++)->l = CWAIT(0, 10);
+ (copl++)->l = CMOVE(par->bplcon0, bplcon0);
+ (copl++)->l = CMOVE(0, sprpt[0]);
+ (copl++)->l = CMOVE2(0, sprpt[0]);
+
+ if (par->bplcon0 & BPC0_LACE) {
+ cops = copdisplay.list[currentcop][0];
+
+ (cops++)->l = CWAIT(0, 10);
+ (cops++)->l = CMOVE(par->bplcon0, bplcon0);
+ (cops++)->l = CMOVE(0, sprpt[0]);
+ (cops++)->l = CMOVE2(0, sprpt[0]);
+
+ (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v + 1), diwstrt);
+ (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v + 1), diwstop);
+ (cops++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
+ (cops++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
+ if (!IS_OCS) {
+ (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v + 1,
+ par->diwstop_h, par->diwstop_v + 1), diwhigh);
+ (cops++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
+ par->diwstop_h, par->diwstop_v), diwhigh);
+#if 0
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt + 1), vbstrt);
+ (copl++)->l = CMOVE(vbstop2hw(par->vbstop + 1), vbstop);
+ (cops++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (cops++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
+ (cops++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
+ }
+#endif
+ }
+ p = ZTWO_PADDR(copdisplay.list[currentcop][0]);
+ (copl++)->l = CMOVE(highw(p), cop2lc);
+ (copl++)->l = CMOVE2(loww(p), cop2lc);
+ p = ZTWO_PADDR(copdisplay.list[currentcop][1]);
+ (cops++)->l = CMOVE(highw(p), cop2lc);
+ (cops++)->l = CMOVE2(loww(p), cop2lc);
+ copdisplay.rebuild[0] = cops;
+ } else {
+ (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
+ (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
+ if (!IS_OCS) {
+ (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
+ par->diwstop_h, par->diwstop_v), diwhigh);
+#if 0
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
+ (copl++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
+ }
+#endif
+ }
+ }
+ copdisplay.rebuild[1] = copl;
+
+ ami_update_par();
+ ami_rebuild_copper();
+}
-static struct fb_ops amifb_ops = {
- .owner = THIS_MODULE,
- .fb_check_var = amifb_check_var,
- .fb_set_par = amifb_set_par,
- .fb_setcolreg = amifb_setcolreg,
- .fb_blank = amifb_blank,
- .fb_pan_display = amifb_pan_display,
- .fb_fillrect = amifb_fillrect,
- .fb_copyarea = amifb_copyarea,
- .fb_imageblit = amifb_imageblit,
- .fb_ioctl = amifb_ioctl,
-};
static void __init amifb_setup_mcap(char *spec)
{
@@ -1327,6 +2458,93 @@ static int amifb_set_par(struct fb_info *info)
/*
+ * Set a single color register. The values supplied are already
+ * rounded down to the hardware's capabilities (according to the
+ * entries in the var structure). Return != 0 for invalid regno.
+ */
+
+static int amifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ if (IS_AGA) {
+ if (regno > 255)
+ return 1;
+ } else if (currentpar.bplcon0 & BPC0_SHRES) {
+ if (regno > 3)
+ return 1;
+ } else {
+ if (regno > 31)
+ return 1;
+ }
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+ if (!regno) {
+ red0 = red;
+ green0 = green;
+ blue0 = blue;
+ }
+
+ /*
+ * Update the corresponding Hardware Color Register, unless it's Color
+ * Register 0 and the screen is blanked.
+ *
+ * VBlank is switched off to protect bplcon3 or ecs_palette[] from
+ * being changed by ami_do_blank() during the VBlank.
+ */
+
+ if (regno || !is_blanked) {
+#if defined(CONFIG_FB_AMIGA_AGA)
+ if (IS_AGA) {
+ u_short bplcon3 = currentpar.bplcon3;
+ VBlankOff();
+ custom.bplcon3 = bplcon3 | (regno << 8 & 0xe000);
+ custom.color[regno & 31] = rgb2hw8_high(red, green,
+ blue);
+ custom.bplcon3 = bplcon3 | (regno << 8 & 0xe000) |
+ BPC3_LOCT;
+ custom.color[regno & 31] = rgb2hw8_low(red, green,
+ blue);
+ custom.bplcon3 = bplcon3;
+ VBlankOn();
+ } else
+#endif
+#if defined(CONFIG_FB_AMIGA_ECS)
+ if (currentpar.bplcon0 & BPC0_SHRES) {
+ u_short color, mask;
+ int i;
+
+ mask = 0x3333;
+ color = rgb2hw2(red, green, blue);
+ VBlankOff();
+ for (i = regno + 12; i >= (int)regno; i -= 4)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ mask <<= 2; color >>= 2;
+ regno = down16(regno) + mul4(mod4(regno));
+ for (i = regno + 3; i >= (int)regno; i--)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ VBlankOn();
+ } else
+#endif
+ custom.color[regno] = rgb2hw4(red, green, blue);
+ }
+ return 0;
+}
+
+
+ /*
+ * Blank the display.
+ */
+
+static int amifb_blank(int blank, struct fb_info *info)
+{
+ do_blank = blank ? blank : -1;
+
+ return 0;
+}
+
+
+ /*
* Pan or Wrap the Display
*
* This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
@@ -2232,6 +3450,77 @@ static int amifb_ioctl(struct fb_info *info,
/*
+ * Flash the cursor (called by VBlank interrupt)
+ */
+
+static int flash_cursor(void)
+{
+ static int cursorcount = 1;
+
+ if (cursormode == FB_CURSOR_FLASH) {
+ if (!--cursorcount) {
+ cursorstate = -cursorstate;
+ cursorcount = cursorrate;
+ if (!is_blanked)
+ return 1;
+ }
+ }
+ return 0;
+}
+
+ /*
+ * VBlank Display Interrupt
+ */
+
+static irqreturn_t amifb_interrupt(int irq, void *dev_id)
+{
+ if (do_vmode_pan || do_vmode_full)
+ ami_update_display();
+
+ if (do_vmode_full)
+ ami_init_display();
+
+ if (do_vmode_pan) {
+ flash_cursor();
+ ami_rebuild_copper();
+ do_cursor = do_vmode_pan = 0;
+ } else if (do_cursor) {
+ flash_cursor();
+ ami_set_sprite();
+ do_cursor = 0;
+ } else {
+ if (flash_cursor())
+ ami_set_sprite();
+ }
+
+ if (do_blank) {
+ ami_do_blank();
+ do_blank = 0;
+ }
+
+ if (do_vmode_full) {
+ ami_reinit_copper();
+ do_vmode_full = 0;
+ }
+ return IRQ_HANDLED;
+}
+
+
+static struct fb_ops amifb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = amifb_check_var,
+ .fb_set_par = amifb_set_par,
+ .fb_setcolreg = amifb_setcolreg,
+ .fb_blank = amifb_blank,
+ .fb_pan_display = amifb_pan_display,
+ .fb_fillrect = amifb_fillrect,
+ .fb_copyarea = amifb_copyarea,
+ .fb_imageblit = amifb_imageblit,
+ .fb_ioctl = amifb_ioctl,
+};
+
+
+ /*
* Allocate, Clear and Align a Block of Chip Memory
*/
@@ -2255,6 +3544,17 @@ static inline void chipfree(void)
}
+static void amifb_deinit(struct platform_device *pdev)
+{
+ if (fb_info.cmap.len)
+ fb_dealloc_cmap(&fb_info.cmap);
+ chipfree();
+ if (videomemory)
+ iounmap((void *)videomemory);
+ custom.dmacon = DMAF_ALL | DMAF_MASTER;
+}
+
+
/*
* Initialisation
*/
@@ -2460,1361 +3760,6 @@ amifb_error:
return err;
}
-static void amifb_deinit(struct platform_device *pdev)
-{
- if (fb_info.cmap.len)
- fb_dealloc_cmap(&fb_info.cmap);
- chipfree();
- if (videomemory)
- iounmap((void *)videomemory);
- custom.dmacon = DMAF_ALL | DMAF_MASTER;
-}
-
-
- /*
- * Blank the display.
- */
-
-static int amifb_blank(int blank, struct fb_info *info)
-{
- do_blank = blank ? blank : -1;
-
- return 0;
-}
-
- /*
- * Flash the cursor (called by VBlank interrupt)
- */
-
-static int flash_cursor(void)
-{
- static int cursorcount = 1;
-
- if (cursormode == FB_CURSOR_FLASH) {
- if (!--cursorcount) {
- cursorstate = -cursorstate;
- cursorcount = cursorrate;
- if (!is_blanked)
- return 1;
- }
- }
- return 0;
-}
-
- /*
- * VBlank Display Interrupt
- */
-
-static irqreturn_t amifb_interrupt(int irq, void *dev_id)
-{
- if (do_vmode_pan || do_vmode_full)
- ami_update_display();
-
- if (do_vmode_full)
- ami_init_display();
-
- if (do_vmode_pan) {
- flash_cursor();
- ami_rebuild_copper();
- do_cursor = do_vmode_pan = 0;
- } else if (do_cursor) {
- flash_cursor();
- ami_set_sprite();
- do_cursor = 0;
- } else {
- if (flash_cursor())
- ami_set_sprite();
- }
-
- if (do_blank) {
- ami_do_blank();
- do_blank = 0;
- }
-
- if (do_vmode_full) {
- ami_reinit_copper();
- do_vmode_full = 0;
- }
- return IRQ_HANDLED;
-}
-
-/* --------------------------- Hardware routines --------------------------- */
-
- /*
- * Get the video params out of `var'. If a value doesn't fit, round
- * it up, if it's too big, return -EINVAL.
- */
-
-static int ami_decode_var(struct fb_var_screeninfo *var,
- struct amifb_par *par)
-{
- u_short clk_shift, line_shift;
- u_long maxfetchstop, fstrt, fsize, fconst, xres_n, yres_n;
- u_int htotal, vtotal;
-
- /*
- * Find a matching Pixel Clock
- */
-
- for (clk_shift = TAG_SHRES; clk_shift <= TAG_LORES; clk_shift++)
- if (var->pixclock <= pixclock[clk_shift])
- break;
- if (clk_shift > TAG_LORES) {
- DPRINTK("pixclock too high\n");
- return -EINVAL;
- }
- par->clk_shift = clk_shift;
-
- /*
- * Check the Geometry Values
- */
-
- if ((par->xres = var->xres) < 64)
- par->xres = 64;
- if ((par->yres = var->yres) < 64)
- par->yres = 64;
- if ((par->vxres = var->xres_virtual) < par->xres)
- par->vxres = par->xres;
- if ((par->vyres = var->yres_virtual) < par->yres)
- par->vyres = par->yres;
-
- par->bpp = var->bits_per_pixel;
- if (!var->nonstd) {
- if (par->bpp < 1)
- par->bpp = 1;
- if (par->bpp > maxdepth[clk_shift]) {
- if (round_down_bpp && maxdepth[clk_shift])
- par->bpp = maxdepth[clk_shift];
- else {
- DPRINTK("invalid bpp\n");
- return -EINVAL;
- }
- }
- } else if (var->nonstd == FB_NONSTD_HAM) {
- if (par->bpp < 6)
- par->bpp = 6;
- if (par->bpp != 6) {
- if (par->bpp < 8)
- par->bpp = 8;
- if (par->bpp != 8 || !IS_AGA) {
- DPRINTK("invalid bpp for ham mode\n");
- return -EINVAL;
- }
- }
- } else {
- DPRINTK("unknown nonstd mode\n");
- return -EINVAL;
- }
-
- /*
- * FB_VMODE_SMOOTH_XPAN will be cleared, if one of the folloing
- * checks failed and smooth scrolling is not possible
- */
-
- par->vmode = var->vmode | FB_VMODE_SMOOTH_XPAN;
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- line_shift = 0;
- break;
- case FB_VMODE_NONINTERLACED:
- line_shift = 1;
- break;
- case FB_VMODE_DOUBLE:
- if (!IS_AGA) {
- DPRINTK("double mode only possible with aga\n");
- return -EINVAL;
- }
- line_shift = 2;
- break;
- default:
- DPRINTK("unknown video mode\n");
- return -EINVAL;
- break;
- }
- par->line_shift = line_shift;
-
- /*
- * Vertical and Horizontal Timings
- */
-
- xres_n = par->xres << clk_shift;
- yres_n = par->yres << line_shift;
- par->htotal = down8((var->left_margin + par->xres + var->right_margin +
- var->hsync_len) << clk_shift);
- par->vtotal =
- down2(((var->upper_margin + par->yres + var->lower_margin +
- var->vsync_len) << line_shift) + 1);
-
- if (IS_AGA)
- par->bplcon3 = sprpixmode[clk_shift];
- else
- par->bplcon3 = 0;
- if (var->sync & FB_SYNC_BROADCAST) {
- par->diwstop_h = par->htotal -
- ((var->right_margin - var->hsync_len) << clk_shift);
- if (IS_AGA)
- par->diwstop_h += mod4(var->hsync_len);
- else
- par->diwstop_h = down4(par->diwstop_h);
-
- par->diwstrt_h = par->diwstop_h - xres_n;
- par->diwstop_v = par->vtotal -
- ((var->lower_margin - var->vsync_len) << line_shift);
- par->diwstrt_v = par->diwstop_v - yres_n;
- if (par->diwstop_h >= par->htotal + 8) {
- DPRINTK("invalid diwstop_h\n");
- return -EINVAL;
- }
- if (par->diwstop_v > par->vtotal) {
- DPRINTK("invalid diwstop_v\n");
- return -EINVAL;
- }
-
- if (!IS_OCS) {
- /* Initialize sync with some reasonable values for pwrsave */
- par->hsstrt = 160;
- par->hsstop = 320;
- par->vsstrt = 30;
- par->vsstop = 34;
- } else {
- par->hsstrt = 0;
- par->hsstop = 0;
- par->vsstrt = 0;
- par->vsstop = 0;
- }
- if (par->vtotal > (PAL_VTOTAL + NTSC_VTOTAL) / 2) {
- /* PAL video mode */
- if (par->htotal != PAL_HTOTAL) {
- DPRINTK("htotal invalid for pal\n");
- return -EINVAL;
- }
- if (par->diwstrt_h < PAL_DIWSTRT_H) {
- DPRINTK("diwstrt_h too low for pal\n");
- return -EINVAL;
- }
- if (par->diwstrt_v < PAL_DIWSTRT_V) {
- DPRINTK("diwstrt_v too low for pal\n");
- return -EINVAL;
- }
- htotal = PAL_HTOTAL>>clk_shift;
- vtotal = PAL_VTOTAL>>1;
- if (!IS_OCS) {
- par->beamcon0 = BMC0_PAL;
- par->bplcon3 |= BPC3_BRDRBLNK;
- } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
- AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
- par->beamcon0 = BMC0_PAL;
- par->hsstop = 1;
- } else if (amiga_vblank != 50) {
- DPRINTK("pal not supported by this chipset\n");
- return -EINVAL;
- }
- } else {
- /* NTSC video mode
- * In the AGA chipset seems to be hardware bug with BPC3_BRDRBLNK
- * and NTSC activated, so than better let diwstop_h <= 1812
- */
- if (par->htotal != NTSC_HTOTAL) {
- DPRINTK("htotal invalid for ntsc\n");
- return -EINVAL;
- }
- if (par->diwstrt_h < NTSC_DIWSTRT_H) {
- DPRINTK("diwstrt_h too low for ntsc\n");
- return -EINVAL;
- }
- if (par->diwstrt_v < NTSC_DIWSTRT_V) {
- DPRINTK("diwstrt_v too low for ntsc\n");
- return -EINVAL;
- }
- htotal = NTSC_HTOTAL>>clk_shift;
- vtotal = NTSC_VTOTAL>>1;
- if (!IS_OCS) {
- par->beamcon0 = 0;
- par->bplcon3 |= BPC3_BRDRBLNK;
- } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
- AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
- par->beamcon0 = 0;
- par->hsstop = 1;
- } else if (amiga_vblank != 60) {
- DPRINTK("ntsc not supported by this chipset\n");
- return -EINVAL;
- }
- }
- if (IS_OCS) {
- if (par->diwstrt_h >= 1024 || par->diwstop_h < 1024 ||
- par->diwstrt_v >= 512 || par->diwstop_v < 256) {
- DPRINTK("invalid position for display on ocs\n");
- return -EINVAL;
- }
- }
- } else if (!IS_OCS) {
- /* Programmable video mode */
- par->hsstrt = var->right_margin << clk_shift;
- par->hsstop = (var->right_margin + var->hsync_len) << clk_shift;
- par->diwstop_h = par->htotal - mod8(par->hsstrt) + 8 - (1 << clk_shift);
- if (!IS_AGA)
- par->diwstop_h = down4(par->diwstop_h) - 16;
- par->diwstrt_h = par->diwstop_h - xres_n;
- par->hbstop = par->diwstrt_h + 4;
- par->hbstrt = par->diwstop_h + 4;
- if (par->hbstrt >= par->htotal + 8)
- par->hbstrt -= par->htotal;
- par->hcenter = par->hsstrt + (par->htotal >> 1);
- par->vsstrt = var->lower_margin << line_shift;
- par->vsstop = (var->lower_margin + var->vsync_len) << line_shift;
- par->diwstop_v = par->vtotal;
- if ((par->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
- par->diwstop_v -= 2;
- par->diwstrt_v = par->diwstop_v - yres_n;
- par->vbstop = par->diwstrt_v - 2;
- par->vbstrt = par->diwstop_v - 2;
- if (par->vtotal > 2048) {
- DPRINTK("vtotal too high\n");
- return -EINVAL;
- }
- if (par->htotal > 2048) {
- DPRINTK("htotal too high\n");
- return -EINVAL;
- }
- par->bplcon3 |= BPC3_EXTBLKEN;
- par->beamcon0 = BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS |
- BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARBEAMEN |
- BMC0_PAL | BMC0_VARCSYEN;
- if (var->sync & FB_SYNC_HOR_HIGH_ACT)
- par->beamcon0 |= BMC0_HSYTRUE;
- if (var->sync & FB_SYNC_VERT_HIGH_ACT)
- par->beamcon0 |= BMC0_VSYTRUE;
- if (var->sync & FB_SYNC_COMP_HIGH_ACT)
- par->beamcon0 |= BMC0_CSYTRUE;
- htotal = par->htotal>>clk_shift;
- vtotal = par->vtotal>>1;
- } else {
- DPRINTK("only broadcast modes possible for ocs\n");
- return -EINVAL;
- }
-
- /*
- * Checking the DMA timing
- */
-
- fconst = 16 << maxfmode << clk_shift;
-
- /*
- * smallest window start value without turn off other dma cycles
- * than sprite1-7, unless you change min_fstrt
- */
-
-
- fsize = ((maxfmode + clk_shift <= 1) ? fconst : 64);
- fstrt = downx(fconst, par->diwstrt_h - 4) - fsize;
- if (fstrt < min_fstrt) {
- DPRINTK("fetch start too low\n");
- return -EINVAL;
- }
-
- /*
- * smallest window start value where smooth scrolling is possible
- */
-
- fstrt = downx(fconst, par->diwstrt_h - fconst + (1 << clk_shift) - 4) -
- fsize;
- if (fstrt < min_fstrt)
- par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
-
- maxfetchstop = down16(par->htotal - 80);
-
- fstrt = downx(fconst, par->diwstrt_h - 4) - 64 - fconst;
- fsize = upx(fconst, xres_n +
- modx(fconst, downx(1 << clk_shift, par->diwstrt_h - 4)));
- if (fstrt + fsize > maxfetchstop)
- par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
-
- fsize = upx(fconst, xres_n);
- if (fstrt + fsize > maxfetchstop) {
- DPRINTK("fetch stop too high\n");
- return -EINVAL;
- }
-
- if (maxfmode + clk_shift <= 1) {
- fsize = up64(xres_n + fconst - 1);
- if (min_fstrt + fsize - 64 > maxfetchstop)
- par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
-
- fsize = up64(xres_n);
- if (min_fstrt + fsize - 64 > maxfetchstop) {
- DPRINTK("fetch size too high\n");
- return -EINVAL;
- }
-
- fsize -= 64;
- } else
- fsize -= fconst;
-
- /*
- * Check if there is enough time to update the bitplane pointers for ywrap
- */
-
- if (par->htotal - fsize - 64 < par->bpp * 64)
- par->vmode &= ~FB_VMODE_YWRAP;
-
- /*
- * Bitplane calculations and check the Memory Requirements
- */
-
- if (amifb_ilbm) {
- par->next_plane = div8(upx(16 << maxfmode, par->vxres));
- par->next_line = par->bpp * par->next_plane;
- if (par->next_line * par->vyres > fb_info.fix.smem_len) {
- DPRINTK("too few video mem\n");
- return -EINVAL;
- }
- } else {
- par->next_line = div8(upx(16 << maxfmode, par->vxres));
- par->next_plane = par->vyres * par->next_line;
- if (par->next_plane * par->bpp > fb_info.fix.smem_len) {
- DPRINTK("too few video mem\n");
- return -EINVAL;
- }
- }
-
- /*
- * Hardware Register Values
- */
-
- par->bplcon0 = BPC0_COLOR | bplpixmode[clk_shift];
- if (!IS_OCS)
- par->bplcon0 |= BPC0_ECSENA;
- if (par->bpp == 8)
- par->bplcon0 |= BPC0_BPU3;
- else
- par->bplcon0 |= par->bpp << 12;
- if (var->nonstd == FB_NONSTD_HAM)
- par->bplcon0 |= BPC0_HAM;
- if (var->sync & FB_SYNC_EXT)
- par->bplcon0 |= BPC0_ERSY;
-
- if (IS_AGA)
- par->fmode = bplfetchmode[maxfmode];
-
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- par->bplcon0 |= BPC0_LACE;
- break;
- case FB_VMODE_DOUBLE:
- if (IS_AGA)
- par->fmode |= FMODE_SSCAN2 | FMODE_BSCAN2;
- break;
- }
-
- if (!((par->vmode ^ var->vmode) & FB_VMODE_YWRAP)) {
- par->xoffset = var->xoffset;
- par->yoffset = var->yoffset;
- if (par->vmode & FB_VMODE_YWRAP) {
- if (par->xoffset || par->yoffset < 0 ||
- par->yoffset >= par->vyres)
- par->xoffset = par->yoffset = 0;
- } else {
- if (par->xoffset < 0 ||
- par->xoffset > upx(16 << maxfmode, par->vxres - par->xres) ||
- par->yoffset < 0 || par->yoffset > par->vyres - par->yres)
- par->xoffset = par->yoffset = 0;
- }
- } else
- par->xoffset = par->yoffset = 0;
-
- par->crsr.crsr_x = par->crsr.crsr_y = 0;
- par->crsr.spot_x = par->crsr.spot_y = 0;
- par->crsr.height = par->crsr.width = 0;
-
- return 0;
-}
-
- /*
- * Fill the `var' structure based on the values in `par' and maybe
- * other values read out of the hardware.
- */
-
-static int ami_encode_var(struct fb_var_screeninfo *var,
- struct amifb_par *par)
-{
- u_short clk_shift, line_shift;
-
- memset(var, 0, sizeof(struct fb_var_screeninfo));
-
- clk_shift = par->clk_shift;
- line_shift = par->line_shift;
-
- var->xres = par->xres;
- var->yres = par->yres;
- var->xres_virtual = par->vxres;
- var->yres_virtual = par->vyres;
- var->xoffset = par->xoffset;
- var->yoffset = par->yoffset;
-
- var->bits_per_pixel = par->bpp;
- var->grayscale = 0;
-
- var->red.offset = 0;
- var->red.msb_right = 0;
- var->red.length = par->bpp;
- if (par->bplcon0 & BPC0_HAM)
- var->red.length -= 2;
- var->blue = var->green = var->red;
- var->transp.offset = 0;
- var->transp.length = 0;
- var->transp.msb_right = 0;
-
- if (par->bplcon0 & BPC0_HAM)
- var->nonstd = FB_NONSTD_HAM;
- else
- var->nonstd = 0;
- var->activate = 0;
-
- var->height = -1;
- var->width = -1;
-
- var->pixclock = pixclock[clk_shift];
-
- if (IS_AGA && par->fmode & FMODE_BSCAN2)
- var->vmode = FB_VMODE_DOUBLE;
- else if (par->bplcon0 & BPC0_LACE)
- var->vmode = FB_VMODE_INTERLACED;
- else
- var->vmode = FB_VMODE_NONINTERLACED;
-
- if (!IS_OCS && par->beamcon0 & BMC0_VARBEAMEN) {
- var->hsync_len = (par->hsstop - par->hsstrt)>>clk_shift;
- var->right_margin = par->hsstrt>>clk_shift;
- var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
- var->vsync_len = (par->vsstop - par->vsstrt)>>line_shift;
- var->lower_margin = par->vsstrt>>line_shift;
- var->upper_margin = (par->vtotal>>line_shift) - var->yres - var->lower_margin - var->vsync_len;
- var->sync = 0;
- if (par->beamcon0 & BMC0_HSYTRUE)
- var->sync |= FB_SYNC_HOR_HIGH_ACT;
- if (par->beamcon0 & BMC0_VSYTRUE)
- var->sync |= FB_SYNC_VERT_HIGH_ACT;
- if (par->beamcon0 & BMC0_CSYTRUE)
- var->sync |= FB_SYNC_COMP_HIGH_ACT;
- } else {
- var->sync = FB_SYNC_BROADCAST;
- var->hsync_len = (152>>clk_shift) + mod4(par->diwstop_h);
- var->right_margin = ((par->htotal - down4(par->diwstop_h))>>clk_shift) + var->hsync_len;
- var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
- var->vsync_len = 4>>line_shift;
- var->lower_margin = ((par->vtotal - par->diwstop_v)>>line_shift) + var->vsync_len;
- var->upper_margin = (((par->vtotal - 2)>>line_shift) + 1) - var->yres -
- var->lower_margin - var->vsync_len;
- }
-
- if (par->bplcon0 & BPC0_ERSY)
- var->sync |= FB_SYNC_EXT;
- if (par->vmode & FB_VMODE_YWRAP)
- var->vmode |= FB_VMODE_YWRAP;
-
- return 0;
-}
-
-
- /*
- * Pan or Wrap the Display
- *
- * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
- * in `var'.
- */
-
-static void ami_pan_var(struct fb_var_screeninfo *var)
-{
- struct amifb_par *par = ¤tpar;
-
- par->xoffset = var->xoffset;
- par->yoffset = var->yoffset;
- if (var->vmode & FB_VMODE_YWRAP)
- par->vmode |= FB_VMODE_YWRAP;
- else
- par->vmode &= ~FB_VMODE_YWRAP;
-
- do_vmode_pan = 0;
- ami_update_par();
- do_vmode_pan = 1;
-}
-
- /*
- * Update hardware
- */
-
-static int ami_update_par(void)
-{
- struct amifb_par *par = ¤tpar;
- short clk_shift, vshift, fstrt, fsize, fstop, fconst, shift, move, mod;
-
- clk_shift = par->clk_shift;
-
- if (!(par->vmode & FB_VMODE_SMOOTH_XPAN))
- par->xoffset = upx(16 << maxfmode, par->xoffset);
-
- fconst = 16 << maxfmode << clk_shift;
- vshift = modx(16 << maxfmode, par->xoffset);
- fstrt = par->diwstrt_h - (vshift << clk_shift) - 4;
- fsize = (par->xres + vshift) << clk_shift;
- shift = modx(fconst, fstrt);
- move = downx(2 << maxfmode, div8(par->xoffset));
- if (maxfmode + clk_shift > 1) {
- fstrt = downx(fconst, fstrt) - 64;
- fsize = upx(fconst, fsize);
- fstop = fstrt + fsize - fconst;
- } else {
- mod = fstrt = downx(fconst, fstrt) - fconst;
- fstop = fstrt + upx(fconst, fsize) - 64;
- fsize = up64(fsize);
- fstrt = fstop - fsize + 64;
- if (fstrt < min_fstrt) {
- fstop += min_fstrt - fstrt;
- fstrt = min_fstrt;
- }
- move = move - div8((mod - fstrt)>>clk_shift);
- }
- mod = par->next_line - div8(fsize>>clk_shift);
- par->ddfstrt = fstrt;
- par->ddfstop = fstop;
- par->bplcon1 = hscroll2hw(shift);
- par->bpl2mod = mod;
- if (par->bplcon0 & BPC0_LACE)
- par->bpl2mod += par->next_line;
- if (IS_AGA && (par->fmode & FMODE_BSCAN2))
- par->bpl1mod = -div8(fsize>>clk_shift);
- else
- par->bpl1mod = par->bpl2mod;
-
- if (par->yoffset) {
- par->bplpt0 = fb_info.fix.smem_start +
- par->next_line * par->yoffset + move;
- if (par->vmode & FB_VMODE_YWRAP) {
- if (par->yoffset > par->vyres - par->yres) {
- par->bplpt0wrap = fb_info.fix.smem_start + move;
- if (par->bplcon0 & BPC0_LACE &&
- mod2(par->diwstrt_v + par->vyres -
- par->yoffset))
- par->bplpt0wrap += par->next_line;
- }
- }
- } else
- par->bplpt0 = fb_info.fix.smem_start + move;
-
- if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v))
- par->bplpt0 += par->next_line;
-
- return 0;
-}
-
-
- /*
- * Set a single color register. The values supplied are already
- * rounded down to the hardware's capabilities (according to the
- * entries in the var structure). Return != 0 for invalid regno.
- */
-
-static int amifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
-{
- if (IS_AGA) {
- if (regno > 255)
- return 1;
- } else if (currentpar.bplcon0 & BPC0_SHRES) {
- if (regno > 3)
- return 1;
- } else {
- if (regno > 31)
- return 1;
- }
- red >>= 8;
- green >>= 8;
- blue >>= 8;
- if (!regno) {
- red0 = red;
- green0 = green;
- blue0 = blue;
- }
-
- /*
- * Update the corresponding Hardware Color Register, unless it's Color
- * Register 0 and the screen is blanked.
- *
- * VBlank is switched off to protect bplcon3 or ecs_palette[] from
- * being changed by ami_do_blank() during the VBlank.
- */
-
- if (regno || !is_blanked) {
-#if defined(CONFIG_FB_AMIGA_AGA)
- if (IS_AGA) {
- u_short bplcon3 = currentpar.bplcon3;
- VBlankOff();
- custom.bplcon3 = bplcon3 | (regno << 8 & 0xe000);
- custom.color[regno & 31] = rgb2hw8_high(red, green,
- blue);
- custom.bplcon3 = bplcon3 | (regno << 8 & 0xe000) |
- BPC3_LOCT;
- custom.color[regno & 31] = rgb2hw8_low(red, green,
- blue);
- custom.bplcon3 = bplcon3;
- VBlankOn();
- } else
-#endif
-#if defined(CONFIG_FB_AMIGA_ECS)
- if (currentpar.bplcon0 & BPC0_SHRES) {
- u_short color, mask;
- int i;
-
- mask = 0x3333;
- color = rgb2hw2(red, green, blue);
- VBlankOff();
- for (i = regno + 12; i >= (int)regno; i -= 4)
- custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
- mask <<= 2; color >>= 2;
- regno = down16(regno) + mul4(mod4(regno));
- for (i = regno + 3; i >= (int)regno; i--)
- custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
- VBlankOn();
- } else
-#endif
- custom.color[regno] = rgb2hw4(red, green, blue);
- }
- return 0;
-}
-
-static void ami_update_display(void)
-{
- struct amifb_par *par = ¤tpar;
-
- custom.bplcon1 = par->bplcon1;
- custom.bpl1mod = par->bpl1mod;
- custom.bpl2mod = par->bpl2mod;
- custom.ddfstrt = ddfstrt2hw(par->ddfstrt);
- custom.ddfstop = ddfstop2hw(par->ddfstop);
-}
-
- /*
- * Change the video mode (called by VBlank interrupt)
- */
-
-static void ami_init_display(void)
-{
- struct amifb_par *par = ¤tpar;
- int i;
-
- custom.bplcon0 = par->bplcon0 & ~BPC0_LACE;
- custom.bplcon2 = (IS_OCS ? 0 : BPC2_KILLEHB) | BPC2_PF2P2 | BPC2_PF1P2;
- if (!IS_OCS) {
- custom.bplcon3 = par->bplcon3;
- if (IS_AGA)
- custom.bplcon4 = BPC4_ESPRM4 | BPC4_OSPRM4;
- if (par->beamcon0 & BMC0_VARBEAMEN) {
- custom.htotal = htotal2hw(par->htotal);
- custom.hbstrt = hbstrt2hw(par->hbstrt);
- custom.hbstop = hbstop2hw(par->hbstop);
- custom.hsstrt = hsstrt2hw(par->hsstrt);
- custom.hsstop = hsstop2hw(par->hsstop);
- custom.hcenter = hcenter2hw(par->hcenter);
- custom.vtotal = vtotal2hw(par->vtotal);
- custom.vbstrt = vbstrt2hw(par->vbstrt);
- custom.vbstop = vbstop2hw(par->vbstop);
- custom.vsstrt = vsstrt2hw(par->vsstrt);
- custom.vsstop = vsstop2hw(par->vsstop);
- }
- }
- if (!IS_OCS || par->hsstop)
- custom.beamcon0 = par->beamcon0;
- if (IS_AGA)
- custom.fmode = par->fmode;
-
- /*
- * The minimum period for audio depends on htotal
- */
-
- amiga_audio_min_period = div16(par->htotal);
-
- is_lace = par->bplcon0 & BPC0_LACE ? 1 : 0;
-#if 1
- if (is_lace) {
- i = custom.vposr >> 15;
- } else {
- custom.vposw = custom.vposr | 0x8000;
- i = 1;
- }
-#else
- i = 1;
- custom.vposw = custom.vposr | 0x8000;
-#endif
- custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][i]);
-}
-
- /*
- * (Un)Blank the screen (called by VBlank interrupt)
- */
-
-static void ami_do_blank(void)
-{
- struct amifb_par *par = ¤tpar;
-#if defined(CONFIG_FB_AMIGA_AGA)
- u_short bplcon3 = par->bplcon3;
-#endif
- u_char red, green, blue;
-
- if (do_blank > 0) {
- custom.dmacon = DMAF_RASTER | DMAF_SPRITE;
- red = green = blue = 0;
- if (!IS_OCS && do_blank > 1) {
- switch (do_blank) {
- case FB_BLANK_VSYNC_SUSPEND:
- custom.hsstrt = hsstrt2hw(par->hsstrt);
- custom.hsstop = hsstop2hw(par->hsstop);
- custom.vsstrt = vsstrt2hw(par->vtotal + 4);
- custom.vsstop = vsstop2hw(par->vtotal + 4);
- break;
- case FB_BLANK_HSYNC_SUSPEND:
- custom.hsstrt = hsstrt2hw(par->htotal + 16);
- custom.hsstop = hsstop2hw(par->htotal + 16);
- custom.vsstrt = vsstrt2hw(par->vsstrt);
- custom.vsstop = vsstrt2hw(par->vsstop);
- break;
- case FB_BLANK_POWERDOWN:
- custom.hsstrt = hsstrt2hw(par->htotal + 16);
- custom.hsstop = hsstop2hw(par->htotal + 16);
- custom.vsstrt = vsstrt2hw(par->vtotal + 4);
- custom.vsstop = vsstop2hw(par->vtotal + 4);
- break;
- }
- if (!(par->beamcon0 & BMC0_VARBEAMEN)) {
- custom.htotal = htotal2hw(par->htotal);
- custom.vtotal = vtotal2hw(par->vtotal);
- custom.beamcon0 = BMC0_HARDDIS | BMC0_VARBEAMEN |
- BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARCSYEN;
- }
- }
- } else {
- custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE;
- red = red0;
- green = green0;
- blue = blue0;
- if (!IS_OCS) {
- custom.hsstrt = hsstrt2hw(par->hsstrt);
- custom.hsstop = hsstop2hw(par->hsstop);
- custom.vsstrt = vsstrt2hw(par->vsstrt);
- custom.vsstop = vsstop2hw(par->vsstop);
- custom.beamcon0 = par->beamcon0;
- }
- }
-#if defined(CONFIG_FB_AMIGA_AGA)
- if (IS_AGA) {
- custom.bplcon3 = bplcon3;
- custom.color[0] = rgb2hw8_high(red, green, blue);
- custom.bplcon3 = bplcon3 | BPC3_LOCT;
- custom.color[0] = rgb2hw8_low(red, green, blue);
- custom.bplcon3 = bplcon3;
- } else
-#endif
-#if defined(CONFIG_FB_AMIGA_ECS)
- if (par->bplcon0 & BPC0_SHRES) {
- u_short color, mask;
- int i;
-
- mask = 0x3333;
- color = rgb2hw2(red, green, blue);
- for (i = 12; i >= 0; i -= 4)
- custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
- mask <<= 2; color >>= 2;
- for (i = 3; i >= 0; i--)
- custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
- } else
-#endif
- custom.color[0] = rgb2hw4(red, green, blue);
- is_blanked = do_blank > 0 ? do_blank : 0;
-}
-
-static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix)
-{
- struct amifb_par *par = ¤tpar;
-
- fix->crsr_width = fix->crsr_xsize = par->crsr.width;
- fix->crsr_height = fix->crsr_ysize = par->crsr.height;
- fix->crsr_color1 = 17;
- fix->crsr_color2 = 18;
- return 0;
-}
-
-static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
-{
- struct amifb_par *par = ¤tpar;
- register u_short *lspr, *sspr;
-#ifdef __mc68000__
- register u_long datawords asm ("d2");
-#else
- register u_long datawords;
-#endif
- register short delta;
- register u_char color;
- short height, width, bits, words;
- int size, alloc;
-
- size = par->crsr.height * par->crsr.width;
- alloc = var->height * var->width;
- var->height = par->crsr.height;
- var->width = par->crsr.width;
- var->xspot = par->crsr.spot_x;
- var->yspot = par->crsr.spot_y;
- if (size > var->height * var->width)
- return -ENAMETOOLONG;
- if (!access_ok(VERIFY_WRITE, data, size))
- return -EFAULT;
- delta = 1 << par->crsr.fmode;
- lspr = lofsprite + (delta << 1);
- if (par->bplcon0 & BPC0_LACE)
- sspr = shfsprite + (delta << 1);
- else
- sspr = NULL;
- for (height = (short)var->height - 1; height >= 0; height--) {
- bits = 0; words = delta; datawords = 0;
- for (width = (short)var->width - 1; width >= 0; width--) {
- if (bits == 0) {
- bits = 16; --words;
-#ifdef __mc68000__
- asm volatile ("movew %1@(%3:w:2),%0 ; swap %0 ; movew %1@+,%0"
- : "=d" (datawords), "=a" (lspr) : "1" (lspr), "d" (delta));
-#else
- datawords = (*(lspr + delta) << 16) | (*lspr++);
-#endif
- }
- --bits;
-#ifdef __mc68000__
- asm volatile (
- "clrb %0 ; swap %1 ; lslw #1,%1 ; roxlb #1,%0 ; "
- "swap %1 ; lslw #1,%1 ; roxlb #1,%0"
- : "=d" (color), "=d" (datawords) : "1" (datawords));
-#else
- color = (((datawords >> 30) & 2)
- | ((datawords >> 15) & 1));
- datawords <<= 1;
-#endif
- put_user(color, data++);
- }
- if (bits > 0) {
- --words; ++lspr;
- }
- while (--words >= 0)
- ++lspr;
-#ifdef __mc68000__
- asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
- : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
-#else
- lspr += delta;
- if (sspr) {
- u_short *tmp = lspr;
- lspr = sspr;
- sspr = tmp;
- }
-#endif
- }
- return 0;
-}
-
-static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
-{
- struct amifb_par *par = ¤tpar;
- register u_short *lspr, *sspr;
-#ifdef __mc68000__
- register u_long datawords asm ("d2");
-#else
- register u_long datawords;
-#endif
- register short delta;
- u_short fmode;
- short height, width, bits, words;
-
- if (!var->width)
- return -EINVAL;
- else if (var->width <= 16)
- fmode = TAG_FMODE_1;
- else if (var->width <= 32)
- fmode = TAG_FMODE_2;
- else if (var->width <= 64)
- fmode = TAG_FMODE_4;
- else
- return -EINVAL;
- if (fmode > maxfmode)
- return -EINVAL;
- if (!var->height)
- return -EINVAL;
- if (!access_ok(VERIFY_READ, data, var->width * var->height))
- return -EFAULT;
- delta = 1 << fmode;
- lofsprite = shfsprite = (u_short *)spritememory;
- lspr = lofsprite + (delta << 1);
- if (par->bplcon0 & BPC0_LACE) {
- if (((var->height + 4) << fmode << 2) > SPRITEMEMSIZE)
- return -EINVAL;
- memset(lspr, 0, (var->height + 4) << fmode << 2);
- shfsprite += ((var->height + 5)&-2) << fmode;
- sspr = shfsprite + (delta << 1);
- } else {
- if (((var->height + 2) << fmode << 2) > SPRITEMEMSIZE)
- return -EINVAL;
- memset(lspr, 0, (var->height + 2) << fmode << 2);
- sspr = NULL;
- }
- for (height = (short)var->height - 1; height >= 0; height--) {
- bits = 16; words = delta; datawords = 0;
- for (width = (short)var->width - 1; width >= 0; width--) {
- unsigned long tdata = 0;
- get_user(tdata, data);
- data++;
-#ifdef __mc68000__
- asm volatile (
- "lsrb #1,%2 ; roxlw #1,%0 ; swap %0 ; "
- "lsrb #1,%2 ; roxlw #1,%0 ; swap %0"
- : "=d" (datawords)
- : "0" (datawords), "d" (tdata));
-#else
- datawords = ((datawords << 1) & 0xfffefffe);
- datawords |= tdata & 1;
- datawords |= (tdata & 2) << (16 - 1);
-#endif
- if (--bits == 0) {
- bits = 16; --words;
-#ifdef __mc68000__
- asm volatile ("swap %2 ; movew %2,%0@(%3:w:2) ; swap %2 ; movew %2,%0@+"
- : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta));
-#else
- *(lspr + delta) = (u_short) (datawords >> 16);
- *lspr++ = (u_short) (datawords & 0xffff);
-#endif
- }
- }
- if (bits < 16) {
- --words;
-#ifdef __mc68000__
- asm volatile (
- "swap %2 ; lslw %4,%2 ; movew %2,%0@(%3:w:2) ; "
- "swap %2 ; lslw %4,%2 ; movew %2,%0@+"
- : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta), "d" (bits));
-#else
- *(lspr + delta) = (u_short) (datawords >> (16 + bits));
- *lspr++ = (u_short) ((datawords & 0x0000ffff) >> bits);
-#endif
- }
- while (--words >= 0) {
-#ifdef __mc68000__
- asm volatile ("moveql #0,%%d0 ; movew %%d0,%0@(%2:w:2) ; movew %%d0,%0@+"
- : "=a" (lspr) : "0" (lspr), "d" (delta) : "d0");
-#else
- *(lspr + delta) = 0;
- *lspr++ = 0;
-#endif
- }
-#ifdef __mc68000__
- asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
- : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
-#else
- lspr += delta;
- if (sspr) {
- u_short *tmp = lspr;
- lspr = sspr;
- sspr = tmp;
- }
-#endif
- }
- par->crsr.height = var->height;
- par->crsr.width = var->width;
- par->crsr.spot_x = var->xspot;
- par->crsr.spot_y = var->yspot;
- par->crsr.fmode = fmode;
- if (IS_AGA) {
- par->fmode &= ~(FMODE_SPAGEM | FMODE_SPR32);
- par->fmode |= sprfetchmode[fmode];
- custom.fmode = par->fmode;
- }
- return 0;
-}
-
-static int ami_get_cursorstate(struct fb_cursorstate *state)
-{
- struct amifb_par *par = ¤tpar;
-
- state->xoffset = par->crsr.crsr_x;
- state->yoffset = par->crsr.crsr_y;
- state->mode = cursormode;
- return 0;
-}
-
-static int ami_set_cursorstate(struct fb_cursorstate *state)
-{
- struct amifb_par *par = ¤tpar;
-
- par->crsr.crsr_x = state->xoffset;
- par->crsr.crsr_y = state->yoffset;
- if ((cursormode = state->mode) == FB_CURSOR_OFF)
- cursorstate = -1;
- do_cursor = 1;
- return 0;
-}
-
-static void ami_set_sprite(void)
-{
- struct amifb_par *par = ¤tpar;
- copins *copl, *cops;
- u_short hs, vs, ve;
- u_long pl, ps, pt;
- short mx, my;
-
- cops = copdisplay.list[currentcop][0];
- copl = copdisplay.list[currentcop][1];
- ps = pl = ZTWO_PADDR(dummysprite);
- mx = par->crsr.crsr_x - par->crsr.spot_x;
- my = par->crsr.crsr_y - par->crsr.spot_y;
- if (!(par->vmode & FB_VMODE_YWRAP)) {
- mx -= par->xoffset;
- my -= par->yoffset;
- }
- if (!is_blanked && cursorstate > 0 && par->crsr.height > 0 &&
- mx > -(short)par->crsr.width && mx < par->xres &&
- my > -(short)par->crsr.height && my < par->yres) {
- pl = ZTWO_PADDR(lofsprite);
- hs = par->diwstrt_h + (mx << par->clk_shift) - 4;
- vs = par->diwstrt_v + (my << par->line_shift);
- ve = vs + (par->crsr.height << par->line_shift);
- if (par->bplcon0 & BPC0_LACE) {
- ps = ZTWO_PADDR(shfsprite);
- lofsprite[0] = spr2hw_pos(vs, hs);
- shfsprite[0] = spr2hw_pos(vs + 1, hs);
- if (mod2(vs)) {
- lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
- shfsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs + 1, hs, ve + 1);
- pt = pl; pl = ps; ps = pt;
- } else {
- lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve + 1);
- shfsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs + 1, hs, ve);
- }
- } else {
- lofsprite[0] = spr2hw_pos(vs, hs) | (IS_AGA && (par->fmode & FMODE_BSCAN2) ? 0x80 : 0);
- lofsprite[1 << par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
- }
- }
- copl[cop_spr0ptrh].w[1] = highw(pl);
- copl[cop_spr0ptrl].w[1] = loww(pl);
- if (par->bplcon0 & BPC0_LACE) {
- cops[cop_spr0ptrh].w[1] = highw(ps);
- cops[cop_spr0ptrl].w[1] = loww(ps);
- }
-}
-
-
- /*
- * Initialise the Copper Initialisation List
- */
-
-static void __init ami_init_copper(void)
-{
- copins *cop = copdisplay.init;
- u_long p;
- int i;
-
- if (!IS_OCS) {
- (cop++)->l = CMOVE(BPC0_COLOR | BPC0_SHRES | BPC0_ECSENA, bplcon0);
- (cop++)->l = CMOVE(0x0181, diwstrt);
- (cop++)->l = CMOVE(0x0281, diwstop);
- (cop++)->l = CMOVE(0x0000, diwhigh);
- } else
- (cop++)->l = CMOVE(BPC0_COLOR, bplcon0);
- p = ZTWO_PADDR(dummysprite);
- for (i = 0; i < 8; i++) {
- (cop++)->l = CMOVE(0, spr[i].pos);
- (cop++)->l = CMOVE(highw(p), sprpt[i]);
- (cop++)->l = CMOVE2(loww(p), sprpt[i]);
- }
-
- (cop++)->l = CMOVE(IF_SETCLR | IF_COPER, intreq);
- copdisplay.wait = cop;
- (cop++)->l = CEND;
- (cop++)->l = CMOVE(0, copjmp2);
- cop->l = CEND;
-
- custom.cop1lc = (u_short *)ZTWO_PADDR(copdisplay.init);
- custom.copjmp1 = 0;
-}
-
-static void ami_reinit_copper(void)
-{
- struct amifb_par *par = ¤tpar;
-
- copdisplay.init[cip_bplcon0].w[1] = ~(BPC0_BPU3 | BPC0_BPU2 | BPC0_BPU1 | BPC0_BPU0) & par->bplcon0;
- copdisplay.wait->l = CWAIT(32, par->diwstrt_v - 4);
-}
-
- /*
- * Build the Copper List
- */
-
-static void ami_build_copper(void)
-{
- struct amifb_par *par = ¤tpar;
- copins *copl, *cops;
- u_long p;
-
- currentcop = 1 - currentcop;
-
- copl = copdisplay.list[currentcop][1];
-
- (copl++)->l = CWAIT(0, 10);
- (copl++)->l = CMOVE(par->bplcon0, bplcon0);
- (copl++)->l = CMOVE(0, sprpt[0]);
- (copl++)->l = CMOVE2(0, sprpt[0]);
-
- if (par->bplcon0 & BPC0_LACE) {
- cops = copdisplay.list[currentcop][0];
-
- (cops++)->l = CWAIT(0, 10);
- (cops++)->l = CMOVE(par->bplcon0, bplcon0);
- (cops++)->l = CMOVE(0, sprpt[0]);
- (cops++)->l = CMOVE2(0, sprpt[0]);
-
- (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v + 1), diwstrt);
- (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v + 1), diwstop);
- (cops++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
- (cops++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
- if (!IS_OCS) {
- (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v + 1,
- par->diwstop_h, par->diwstop_v + 1), diwhigh);
- (cops++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
- par->diwstop_h, par->diwstop_v), diwhigh);
-#if 0
- if (par->beamcon0 & BMC0_VARBEAMEN) {
- (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
- (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt + 1), vbstrt);
- (copl++)->l = CMOVE(vbstop2hw(par->vbstop + 1), vbstop);
- (cops++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
- (cops++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
- (cops++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
- }
-#endif
- }
- p = ZTWO_PADDR(copdisplay.list[currentcop][0]);
- (copl++)->l = CMOVE(highw(p), cop2lc);
- (copl++)->l = CMOVE2(loww(p), cop2lc);
- p = ZTWO_PADDR(copdisplay.list[currentcop][1]);
- (cops++)->l = CMOVE(highw(p), cop2lc);
- (cops++)->l = CMOVE2(loww(p), cop2lc);
- copdisplay.rebuild[0] = cops;
- } else {
- (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
- (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
- if (!IS_OCS) {
- (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
- par->diwstop_h, par->diwstop_v), diwhigh);
-#if 0
- if (par->beamcon0 & BMC0_VARBEAMEN) {
- (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
- (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
- (copl++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
- }
-#endif
- }
- }
- copdisplay.rebuild[1] = copl;
-
- ami_update_par();
- ami_rebuild_copper();
-}
-
- /*
- * Rebuild the Copper List
- *
- * We only change the things that are not static
- */
-
-static void ami_rebuild_copper(void)
-{
- struct amifb_par *par = ¤tpar;
- copins *copl, *cops;
- u_short line, h_end1, h_end2;
- short i;
- u_long p;
-
- if (IS_AGA && maxfmode + par->clk_shift == 0)
- h_end1 = par->diwstrt_h - 64;
- else
- h_end1 = par->htotal - 32;
- h_end2 = par->ddfstop + 64;
-
- ami_set_sprite();
-
- copl = copdisplay.rebuild[1];
- p = par->bplpt0;
- if (par->vmode & FB_VMODE_YWRAP) {
- if ((par->vyres - par->yoffset) != 1 || !mod2(par->diwstrt_v)) {
- if (par->yoffset > par->vyres - par->yres) {
- for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
- (copl++)->l = CMOVE(highw(p), bplpt[i]);
- (copl++)->l = CMOVE2(loww(p), bplpt[i]);
- }
- line = par->diwstrt_v + ((par->vyres - par->yoffset) << par->line_shift) - 1;
- while (line >= 512) {
- (copl++)->l = CWAIT(h_end1, 510);
- line -= 512;
- }
- if (line >= 510 && IS_AGA && maxfmode + par->clk_shift == 0)
- (copl++)->l = CWAIT(h_end1, line);
- else
- (copl++)->l = CWAIT(h_end2, line);
- p = par->bplpt0wrap;
- }
- } else
- p = par->bplpt0wrap;
- }
- for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
- (copl++)->l = CMOVE(highw(p), bplpt[i]);
- (copl++)->l = CMOVE2(loww(p), bplpt[i]);
- }
- copl->l = CEND;
-
- if (par->bplcon0 & BPC0_LACE) {
- cops = copdisplay.rebuild[0];
- p = par->bplpt0;
- if (mod2(par->diwstrt_v))
- p -= par->next_line;
- else
- p += par->next_line;
- if (par->vmode & FB_VMODE_YWRAP) {
- if ((par->vyres - par->yoffset) != 1 || mod2(par->diwstrt_v)) {
- if (par->yoffset > par->vyres - par->yres + 1) {
- for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
- (cops++)->l = CMOVE(highw(p), bplpt[i]);
- (cops++)->l = CMOVE2(loww(p), bplpt[i]);
- }
- line = par->diwstrt_v + ((par->vyres - par->yoffset) << par->line_shift) - 2;
- while (line >= 512) {
- (cops++)->l = CWAIT(h_end1, 510);
- line -= 512;
- }
- if (line > 510 && IS_AGA && maxfmode + par->clk_shift == 0)
- (cops++)->l = CWAIT(h_end1, line);
- else
- (cops++)->l = CWAIT(h_end2, line);
- p = par->bplpt0wrap;
- if (mod2(par->diwstrt_v + par->vyres -
- par->yoffset))
- p -= par->next_line;
- else
- p += par->next_line;
- }
- } else
- p = par->bplpt0wrap - par->next_line;
- }
- for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
- (cops++)->l = CMOVE(highw(p), bplpt[i]);
- (cops++)->l = CMOVE2(loww(p), bplpt[i]);
- }
- cops->l = CEND;
- }
-}
static int __exit amifb_remove(struct platform_device *pdev)
{
--
1.7.0.4
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