diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/fbdev/wmt_ge_rops.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-f7018c21350204c4cf628462f229d44d03545254.tar.bz2 |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/fbdev/wmt_ge_rops.c')
-rw-r--r-- | drivers/video/fbdev/wmt_ge_rops.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/video/fbdev/wmt_ge_rops.c b/drivers/video/fbdev/wmt_ge_rops.c new file mode 100644 index 000000000000..b0a9f34b2e01 --- /dev/null +++ b/drivers/video/fbdev/wmt_ge_rops.c @@ -0,0 +1,182 @@ +/* + * linux/drivers/video/wmt_ge_rops.c + * + * Accelerators for raster operations using WonderMedia Graphics Engine + * + * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/fb.h> +#include <linux/platform_device.h> +#include "fb_draw.h" + +#define GE_COMMAND_OFF 0x00 +#define GE_DEPTH_OFF 0x04 +#define GE_HIGHCOLOR_OFF 0x08 +#define GE_ROPCODE_OFF 0x14 +#define GE_FIRE_OFF 0x18 +#define GE_SRCBASE_OFF 0x20 +#define GE_SRCDISPW_OFF 0x24 +#define GE_SRCDISPH_OFF 0x28 +#define GE_SRCAREAX_OFF 0x2c +#define GE_SRCAREAY_OFF 0x30 +#define GE_SRCAREAW_OFF 0x34 +#define GE_SRCAREAH_OFF 0x38 +#define GE_DESTBASE_OFF 0x3c +#define GE_DESTDISPW_OFF 0x40 +#define GE_DESTDISPH_OFF 0x44 +#define GE_DESTAREAX_OFF 0x48 +#define GE_DESTAREAY_OFF 0x4c +#define GE_DESTAREAW_OFF 0x50 +#define GE_DESTAREAH_OFF 0x54 +#define GE_PAT0C_OFF 0x88 /* Pattern 0 color */ +#define GE_ENABLE_OFF 0xec +#define GE_INTEN_OFF 0xf0 +#define GE_STATUS_OFF 0xf8 + +static void __iomem *regbase; + +void wmt_ge_fillrect(struct fb_info *p, const struct fb_fillrect *rect) +{ + unsigned long fg, pat; + + if (p->state != FBINFO_STATE_RUNNING) + return; + + if (p->fix.visual == FB_VISUAL_TRUECOLOR || + p->fix.visual == FB_VISUAL_DIRECTCOLOR) + fg = ((u32 *) (p->pseudo_palette))[rect->color]; + else + fg = rect->color; + + pat = pixel_to_pat(p->var.bits_per_pixel, fg); + + if (p->fbops->fb_sync) + p->fbops->fb_sync(p); + + writel(p->var.bits_per_pixel == 32 ? 3 : + (p->var.bits_per_pixel == 8 ? 0 : 1), regbase + GE_DEPTH_OFF); + writel(p->var.bits_per_pixel == 15 ? 1 : 0, regbase + GE_HIGHCOLOR_OFF); + writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF); + writel(rect->dx, regbase + GE_DESTAREAX_OFF); + writel(rect->dy, regbase + GE_DESTAREAY_OFF); + writel(rect->width - 1, regbase + GE_DESTAREAW_OFF); + writel(rect->height - 1, regbase + GE_DESTAREAH_OFF); + + writel(pat, regbase + GE_PAT0C_OFF); + writel(1, regbase + GE_COMMAND_OFF); + writel(rect->rop == ROP_XOR ? 0x5a : 0xf0, regbase + GE_ROPCODE_OFF); + writel(1, regbase + GE_FIRE_OFF); +} +EXPORT_SYMBOL_GPL(wmt_ge_fillrect); + +void wmt_ge_copyarea(struct fb_info *p, const struct fb_copyarea *area) +{ + if (p->state != FBINFO_STATE_RUNNING) + return; + + if (p->fbops->fb_sync) + p->fbops->fb_sync(p); + + writel(p->var.bits_per_pixel > 16 ? 3 : + (p->var.bits_per_pixel > 8 ? 1 : 0), regbase + GE_DEPTH_OFF); + + writel(p->fix.smem_start, regbase + GE_SRCBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_SRCDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_SRCDISPH_OFF); + writel(area->sx, regbase + GE_SRCAREAX_OFF); + writel(area->sy, regbase + GE_SRCAREAY_OFF); + writel(area->width - 1, regbase + GE_SRCAREAW_OFF); + writel(area->height - 1, regbase + GE_SRCAREAH_OFF); + + writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF); + writel(area->dx, regbase + GE_DESTAREAX_OFF); + writel(area->dy, regbase + GE_DESTAREAY_OFF); + writel(area->width - 1, regbase + GE_DESTAREAW_OFF); + writel(area->height - 1, regbase + GE_DESTAREAH_OFF); + + writel(0xcc, regbase + GE_ROPCODE_OFF); + writel(1, regbase + GE_COMMAND_OFF); + writel(1, regbase + GE_FIRE_OFF); +} +EXPORT_SYMBOL_GPL(wmt_ge_copyarea); + +int wmt_ge_sync(struct fb_info *p) +{ + int loops = 5000000; + while ((readl(regbase + GE_STATUS_OFF) & 4) && --loops) + cpu_relax(); + return loops > 0 ? 0 : -EBUSY; +} +EXPORT_SYMBOL_GPL(wmt_ge_sync); + +static int wmt_ge_rops_probe(struct platform_device *pdev) +{ + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(&pdev->dev, "no I/O memory resource defined\n"); + return -ENODEV; + } + + /* Only one ROP engine is presently supported. */ + if (unlikely(regbase)) { + WARN_ON(1); + return -EBUSY; + } + + regbase = ioremap(res->start, resource_size(res)); + if (regbase == NULL) { + dev_err(&pdev->dev, "failed to map I/O memory\n"); + return -EBUSY; + } + + writel(1, regbase + GE_ENABLE_OFF); + printk(KERN_INFO "Enabled support for WMT GE raster acceleration\n"); + + return 0; +} + +static int wmt_ge_rops_remove(struct platform_device *pdev) +{ + iounmap(regbase); + return 0; +} + +static const struct of_device_id wmt_dt_ids[] = { + { .compatible = "wm,prizm-ge-rops", }, + { /* sentinel */ } +}; + +static struct platform_driver wmt_ge_rops_driver = { + .probe = wmt_ge_rops_probe, + .remove = wmt_ge_rops_remove, + .driver = { + .owner = THIS_MODULE, + .name = "wmt_ge_rops", + .of_match_table = wmt_dt_ids, + }, +}; + +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); |