diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/cg6.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c index 9eaa63ab08fa..940ec04f0f1b 100644 --- a/drivers/video/cg6.c +++ b/drivers/video/cg6.c @@ -34,10 +34,11 @@ static int cg6_blank(int, struct fb_info *); static void cg6_imageblit(struct fb_info *, const struct fb_image *); static void cg6_fillrect(struct fb_info *, const struct fb_fillrect *); +static void cg6_copyarea(struct fb_info *info, const struct fb_copyarea *area); static int cg6_sync(struct fb_info *); static int cg6_mmap(struct fb_info *, struct vm_area_struct *); static int cg6_ioctl(struct fb_info *, unsigned int, unsigned long); -static void cg6_copyarea(struct fb_info *info, const struct fb_copyarea *area); +static int cg6_pan_display(struct fb_var_screeninfo *, struct fb_info *); /* * Frame buffer operations @@ -47,6 +48,7 @@ static struct fb_ops cg6_ops = { .owner = THIS_MODULE, .fb_setcolreg = cg6_setcolreg, .fb_blank = cg6_blank, + .fb_pan_display = cg6_pan_display, .fb_fillrect = cg6_fillrect, .fb_copyarea = cg6_copyarea, .fb_imageblit = cg6_imageblit, @@ -161,6 +163,7 @@ static struct fb_ops cg6_ops = { #define CG6_THC_MISC_INT_ENAB (1 << 5) #define CG6_THC_MISC_INT (1 << 4) #define CG6_THC_MISC_INIT 0x9f +#define CG6_THC_CURSOFF ((65536-32) | ((65536-32) << 16)) /* The contents are unknown */ struct cg6_tec { @@ -280,6 +283,33 @@ static int cg6_sync(struct fb_info *info) return 0; } +static void cg6_switch_from_graph(struct cg6_par *par) +{ + struct cg6_thc __iomem *thc = par->thc; + unsigned long flags; + + spin_lock_irqsave(&par->lock, flags); + + /* Hide the cursor. */ + sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy); + + spin_unlock_irqrestore(&par->lock, flags); +} + +static int cg6_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) +{ + struct cg6_par *par = (struct cg6_par *)info->par; + + /* We just use this to catch switches out of + * graphics mode. + */ + cg6_switch_from_graph(par); + + if (var->xoffset || var->yoffset || var->vmode) + return -EINVAL; + return 0; +} + /** * cg6_fillrect - Draws a rectangle on the screen. * @@ -643,9 +673,13 @@ static void __devinit cg6_chip_init(struct fb_info *info) struct cg6_par *par = (struct cg6_par *)info->par; struct cg6_tec __iomem *tec = par->tec; struct cg6_fbc __iomem *fbc = par->fbc; + struct cg6_thc __iomem *thc = par->thc; u32 rev, conf, mode; int i; + /* Hide the cursor. */ + sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy); + /* Turn off stuff in the Transform Engine. */ sbus_writel(0, &tec->tec_matrix); sbus_writel(0, &tec->tec_clip); |