forked from luck/tmp_suning_uos_patched
pm2fb: panning and hardware cursor fixes
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>
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2a36f9c497
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1ddc28d7e7
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@ -66,7 +66,7 @@
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/*
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* Driver data
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*/
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static int hwcursor;
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static int hwcursor = 1;
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static char *mode __devinitdata;
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/*
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@ -587,6 +587,11 @@ static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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return -EINVAL;
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}
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/* permedia cannot blit over 2048 */
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if (var->yres_virtual > 2047) {
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var->yres_virtual = 2047;
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}
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if (var->xoffset) {
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DPRINTK("xoffset not supported\n");
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return -EINVAL;
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@ -1258,12 +1263,21 @@ static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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{
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struct pm2fb_par *par = info->par;
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u8 mode = PM2F_CURSORMODE_TYPE_X;
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int x = cursor->image.dx - info->var.xoffset;
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int y = cursor->image.dy - info->var.yoffset;
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if (cursor->enable)
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mode |= PM2F_CURSORMODE_CURSOR_ENABLE;
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode);
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if (!cursor->enable)
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x = 2047; /* push it outside display */
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
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/*
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* If the cursor is not be changed this means either we want the
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* current cursor state (if enable is set) or we want to query what
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@ -1272,16 +1286,6 @@ static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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if (!cursor->set)
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return 0;
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if (cursor->set & FB_CUR_SETPOS) {
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int x = cursor->image.dx - info->var.xoffset;
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int y = cursor->image.dy - info->var.yoffset;
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
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}
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if (cursor->set & FB_CUR_SETHOT) {
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pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT,
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cursor->hot.x & 0x3f);
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@ -1373,7 +1377,7 @@ static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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if (par->type == PM2_TYPE_PERMEDIA2V)
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return pm2vfb_cursor(info, cursor);
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mode = 0;
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mode = 0x40;
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if (cursor->enable)
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mode = 0x43;
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@ -1388,10 +1392,9 @@ static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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return 0;
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if (cursor->set & FB_CUR_SETPOS) {
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int x, y;
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int x = cursor->image.dx - info->var.xoffset + 63;
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int y = cursor->image.dy - info->var.yoffset + 63;
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x = cursor->image.dx + 63;
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y = cursor->image.dy + 63;
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WAIT_FIFO(par, 4);
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pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff);
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pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7);
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@ -1838,7 +1841,7 @@ module_param(noaccel, bool, 0);
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MODULE_PARM_DESC(noaccel, "Disable acceleration");
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module_param(hwcursor, int, 0644);
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MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
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"(1=enable, 0=disable, default=0)");
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"(1=enable, 0=disable, default=1)");
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#ifdef CONFIG_MTRR
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module_param(nomtrr, bool, 0);
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MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
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