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-rw-r--r--drivers/video/cirrusfb.c79
1 files changed, 44 insertions, 35 deletions
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index 6603273f4ce5..65a1831ddd0d 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -95,10 +95,10 @@
/* board types */
enum cirrus_board {
BT_NONE = 0,
- BT_SD64,
- BT_PICCOLO,
- BT_PICASSO,
- BT_SPECTRUM,
+ BT_SD64, /* GD5434 */
+ BT_PICCOLO, /* GD5426 */
+ BT_PICASSO, /* GD5426 or GD5428 */
+ BT_SPECTRUM, /* GD5426 or GD5428 */
BT_PICASSO4, /* GD5446 */
BT_ALPINE, /* GD543x/4x */
BT_GD5480,
@@ -488,7 +488,7 @@ static int cirrusfb_check_pixclock(const struct fb_var_screeninfo *var,
* the VCLK is double the pixel clock. */
switch (var->bits_per_pixel) {
case 16:
- case 32:
+ case 24:
if (var->xres <= 800)
/* Xbh has this type of clock for 32-bit */
freq /= 2;
@@ -535,11 +535,11 @@ static int cirrusfb_check_var(struct fb_var_screeninfo *var,
var->blue.length = 5;
break;
- case 32:
+ case 24:
if (isPReP) {
- var->red.offset = 8;
- var->green.offset = 16;
- var->blue.offset = 24;
+ var->red.offset = 0;
+ var->green.offset = 8;
+ var->blue.offset = 16;
} else {
var->red.offset = 16;
var->green.offset = 8;
@@ -670,7 +670,7 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
break;
case 16:
- case 32:
+ case 24:
info->fix.line_length = var->xres_virtual *
var->bits_per_pixel >> 3;
info->fix.visual = FB_VISUAL_TRUECOLOR;
@@ -813,6 +813,9 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
vga_wcrt(regbase, CL_CRT1A, tmp);
freq = PICOS2KHZ(var->pixclock);
+ if (cinfo->btype == BT_ALPINE && var->bits_per_pixel == 24)
+ freq *= 3;
+
bestclock(freq, &nom, &den, &div);
dev_dbg(info->device, "VCLK freq: %ld kHz nom: %d den: %d div: %d\n",
@@ -1140,16 +1143,16 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
/******************************************************
*
- * 32 bpp
+ * 24 bpp
*
*/
- else if (var->bits_per_pixel == 32) {
- dev_dbg(info->device, "preparing for 32 bit deep display\n");
+ else if (var->bits_per_pixel == 24) {
+ dev_dbg(info->device, "preparing for 24 bit deep display\n");
switch (cinfo->btype) {
case BT_SD64:
/* Extended Sequencer Mode: 256c col. mode */
- vga_wseq(regbase, CL_SEQR7, 0xf9);
+ vga_wseq(regbase, CL_SEQR7, 0xf5);
/* MCLK select */
vga_wseq(regbase, CL_SEQR1F, 0x1e);
break;
@@ -1173,11 +1176,11 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
case BT_PICASSO4:
case BT_ALPINE:
- vga_wseq(regbase, CL_SEQR7, 0xa9);
+ vga_wseq(regbase, CL_SEQR7, 0xa5);
break;
case BT_GD5480:
- vga_wseq(regbase, CL_SEQR7, 0x19);
+ vga_wseq(regbase, CL_SEQR7, 0x15);
/* We already set SRF and SR1F */
break;
@@ -1185,8 +1188,8 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
case BT_LAGUNAB:
vga_wseq(regbase, CL_SEQR7,
vga_rseq(regbase, CL_SEQR7) & ~0x01);
- control |= 0x6000;
- format |= 0x3400;
+ control |= 0x4000;
+ format |= 0x2400;
threshold |= 0x20;
break;
@@ -1385,9 +1388,6 @@ static int cirrusfb_pan_display(struct fb_var_screeninfo *var,
if (info->var.bits_per_pixel == 1)
vga_wattr(cinfo->regbase, CL_AR33, xpix);
- if (!is_laguna(cinfo))
- cirrusfb_WaitBLT(cinfo->regbase);
-
return 0;
}
@@ -1492,22 +1492,18 @@ static void init_vgachip(struct fb_info *info)
/* disable flickerfixer */
vga_wcrt(cinfo->regbase, CL_CRT51, 0x00);
mdelay(100);
- /* from Klaus' NetBSD driver: */
- vga_wgfx(cinfo->regbase, CL_GR2F, 0x00);
- /* put blitter into 542x compat */
- vga_wgfx(cinfo->regbase, CL_GR33, 0x00);
/* mode */
vga_wgfx(cinfo->regbase, CL_GR31, 0x00);
- break;
-
- case BT_GD5480:
+ case BT_GD5480: /* fall through */
/* from Klaus' NetBSD driver: */
vga_wgfx(cinfo->regbase, CL_GR2F, 0x00);
+ case BT_ALPINE: /* fall through */
+ /* put blitter into 542x compat */
+ vga_wgfx(cinfo->regbase, CL_GR33, 0x00);
break;
case BT_LAGUNA:
case BT_LAGUNAB:
- case BT_ALPINE:
/* Nothing to do to reset the board. */
break;
@@ -1831,10 +1827,13 @@ static void cirrusfb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct cirrusfb_info *cinfo = info->par;
+ unsigned char op = (info->var.bits_per_pixel == 24) ? 0xc : 0x4;
if (info->state != FBINFO_STATE_RUNNING)
return;
- if (info->flags & FBINFO_HWACCEL_DISABLED)
+ /* Alpine acceleration does not work at 24bpp ?!? */
+ if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1 ||
+ (cinfo->btype == BT_ALPINE && op == 0xc))
cfb_imageblit(info, image);
else {
unsigned size = ((image->width + 7) >> 3) * image->height;
@@ -1848,15 +1847,22 @@ static void cirrusfb_imageblit(struct fb_info *info,
fg = ((u32 *)(info->pseudo_palette))[image->fg_color];
bg = ((u32 *)(info->pseudo_palette))[image->bg_color];
}
- cirrusfb_WaitBLT(cinfo->regbase);
- /* byte rounded scanlines */
- vga_wgfx(cinfo->regbase, CL_GR33, 0x00);
+ if (info->var.bits_per_pixel == 24) {
+ /* clear background first */
+ cirrusfb_RectFill(cinfo->regbase,
+ info->var.bits_per_pixel,
+ (image->dx * m) / 8, image->dy,
+ (image->width * m) / 8,
+ image->height,
+ bg, bg,
+ info->fix.line_length, 0x40);
+ }
cirrusfb_RectFill(cinfo->regbase,
info->var.bits_per_pixel,
(image->dx * m) / 8, image->dy,
(image->width * m) / 8, image->height,
fg, bg,
- info->fix.line_length, 0x04);
+ info->fix.line_length, op);
memcpy(info->screen_base, image->data, size);
}
}
@@ -2743,9 +2749,12 @@ static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel,
vga_wgfx(regbase, CL_GR11, fg_color >> 8);
op = 0x90;
}
- if (bits_per_pixel == 32) {
+ if (bits_per_pixel >= 24) {
vga_wgfx(regbase, CL_GR12, bg_color >> 16);
vga_wgfx(regbase, CL_GR13, fg_color >> 16);
+ op = 0xa0;
+ }
+ if (bits_per_pixel == 32) {
vga_wgfx(regbase, CL_GR14, bg_color >> 24);
vga_wgfx(regbase, CL_GR15, fg_color >> 24);
op = 0xb0;
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