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pm2fb: panning and hardware cursor fixes

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This patch:
- disallows setting of virtual height above 2048 as it does
  not work for accelerated copyarea and imageblit
- fixes blinking of pm2v cursor by pushing cursor outside
  the display (x=2047)
- fixes hardware cursor position on Permedia 2 chips with
  panning enabled
- enables hardware cursor by default

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt 2007-10-16 01:29:16 -07:00 committed by Linus Torvalds
parent 2a36f9c497
commit 1ddc28d7e7
1 changed files with 19 additions and 16 deletions
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35
drivers/video/pm2fb.c
View file

@ -66,7 +66,7 @@
/*
* Driver data
*/
static int hwcursor;
static int hwcursor = 1;
static char *mode __devinitdata;
/*
@ -587,6 +587,11 @@ static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
return -EINVAL;
}
/* permedia cannot blit over 2048 */
if (var->yres_virtual > 2047) {
var->yres_virtual = 2047;
}
if (var->xoffset) {
DPRINTK("xoffset not supported\n");
return -EINVAL;
@ -1258,12 +1263,21 @@ static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct pm2fb_par *par = info->par;
u8 mode = PM2F_CURSORMODE_TYPE_X;
int x = cursor->image.dx - info->var.xoffset;
int y = cursor->image.dy - info->var.yoffset;
if (cursor->enable)
mode |= PM2F_CURSORMODE_CURSOR_ENABLE;
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode);
if (!cursor->enable)
x = 2047; /* push it outside display */
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
/*
* If the cursor is not be changed this means either we want the
* current cursor state (if enable is set) or we want to query what
@ -1272,16 +1286,6 @@ static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
if (!cursor->set)
return 0;
if (cursor->set & FB_CUR_SETPOS) {
int x = cursor->image.dx - info->var.xoffset;
int y = cursor->image.dy - info->var.yoffset;
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
}
if (cursor->set & FB_CUR_SETHOT) {
pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT,
cursor->hot.x & 0x3f);
@ -1373,7 +1377,7 @@ static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
if (par->type == PM2_TYPE_PERMEDIA2V)
return pm2vfb_cursor(info, cursor);
mode = 0;
mode = 0x40;
if (cursor->enable)
mode = 0x43;
@ -1388,10 +1392,9 @@ static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
return 0;
if (cursor->set & FB_CUR_SETPOS) {
int x, y;
int x = cursor->image.dx - info->var.xoffset + 63;
int y = cursor->image.dy - info->var.yoffset + 63;
x = cursor->image.dx + 63;
y = cursor->image.dy + 63;
WAIT_FIFO(par, 4);
pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff);
pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7);
@ -1838,7 +1841,7 @@ module_param(noaccel, bool, 0);
MODULE_PARM_DESC(noaccel, "Disable acceleration");
module_param(hwcursor, int, 0644);
MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
"(1=enable, 0=disable, default=0)");
"(1=enable, 0=disable, default=1)");
#ifdef CONFIG_MTRR
module_param(nomtrr, bool, 0);
MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");