diff options
Diffstat (limited to 'drivers/video/fbdev/wmt_ge_rops.c')
| -rw-r--r-- | drivers/video/fbdev/wmt_ge_rops.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/video/fbdev/wmt_ge_rops.c b/drivers/video/fbdev/wmt_ge_rops.c index 42255d27a1db..2bd26bfb2b46 100644 --- a/drivers/video/fbdev/wmt_ge_rops.c +++ b/drivers/video/fbdev/wmt_ge_rops.c @@ -7,10 +7,12 @@ * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com> */ +#include <linux/export.h> #include <linux/module.h> #include <linux/fb.h> +#include <linux/io.h> #include <linux/platform_device.h> -#include "core/fb_draw.h" + #include "wmt_ge_rops.h" #define GE_COMMAND_OFF 0x00 @@ -39,6 +41,33 @@ static void __iomem *regbase; +/* from the spec it seems more like depth than bits per pixel */ +static inline unsigned long pixel_to_pat(u32 depth, u32 pixel, struct fb_info *p) +{ + switch (depth) { + case 1: + return ~0ul*pixel; + case 2: + return ~0ul/3*pixel; + case 4: + return ~0ul/15*pixel; + case 8: + return ~0ul/255*pixel; + case 12: + case 15: + case 16: + return ~0ul/0xffff*pixel; + case 18: + case 24: + return 0x1000001ul*pixel; + case 32: + return pixel; + default: + fb_warn_once(p, "%s: unsupported pixelformat %d\n", __func__, depth); + return 0; + } +} + void wmt_ge_fillrect(struct fb_info *p, const struct fb_fillrect *rect) { unsigned long fg, pat; @@ -52,7 +81,7 @@ void wmt_ge_fillrect(struct fb_info *p, const struct fb_fillrect *rect) else fg = rect->color; - pat = pixel_to_pat(p->var.bits_per_pixel, fg); + pat = pixel_to_pat(p->var.bits_per_pixel, fg, p); if (p->fbops->fb_sync) p->fbops->fb_sync(p); @@ -145,10 +174,9 @@ static int wmt_ge_rops_probe(struct platform_device *pdev) return 0; } -static int wmt_ge_rops_remove(struct platform_device *pdev) +static void wmt_ge_rops_remove(struct platform_device *pdev) { iounmap(regbase); - return 0; } static const struct of_device_id wmt_dt_ids[] = { @@ -170,5 +198,4 @@ module_platform_driver(wmt_ge_rops_driver); MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>"); MODULE_DESCRIPTION("Accelerators for raster operations using " "WonderMedia Graphics Engine"); -MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, wmt_dt_ids); |