diff options
| -rw-r--r-- | drivers/video/tgafb.c | 157 |
1 files changed, 113 insertions, 44 deletions
diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c index 5345fe03cdf..f0fde6ea7c3 100644 --- a/drivers/video/tgafb.c +++ b/drivers/video/tgafb.c @@ -59,6 +59,7 @@ static void tgafb_init_fix(struct fb_info *); static void tgafb_imageblit(struct fb_info *, const struct fb_image *); static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *); static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *); +static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info); static int __devinit tgafb_register(struct device *dev); static void __devexit tgafb_unregister(struct device *dev); @@ -81,6 +82,7 @@ static struct fb_ops tgafb_ops = { .fb_set_par = tgafb_set_par, .fb_setcolreg = tgafb_setcolreg, .fb_blank = tgafb_blank, + .fb_pan_display = tgafb_pan_display, .fb_fillrect = tgafb_fillrect, .fb_copyarea = tgafb_copyarea, .fb_imageblit = tgafb_imageblit, @@ -319,21 +321,7 @@ tgafb_set_par(struct fb_info *info) BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE); TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG); -#ifdef CONFIG_HW_CONSOLE - for (i = 0; i < 16; i++) { - int j = color_table[i]; - - TGA_WRITE_REG(par, default_red[j]|(BT485_DATA_PAL<<8), - TGA_RAMDAC_REG); - TGA_WRITE_REG(par, default_grn[j]|(BT485_DATA_PAL<<8), - TGA_RAMDAC_REG); - TGA_WRITE_REG(par, default_blu[j]|(BT485_DATA_PAL<<8), - TGA_RAMDAC_REG); - } - for (i = 0; i < 240 * 3; i += 4) { -#else for (i = 0; i < 256 * 3; i += 4) { -#endif TGA_WRITE_REG(par, 0x55 | (BT485_DATA_PAL << 8), TGA_RAMDAC_REG); TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8), @@ -358,18 +346,7 @@ tgafb_set_par(struct fb_info *info) BT459_LOAD_ADDR(par, 0x0000); TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG); -#ifdef CONFIG_HW_CONSOLE - for (i = 0; i < 16; i++) { - int j = color_table[i]; - - TGA_WRITE_REG(par, default_red[j], TGA_RAMDAC_REG); - TGA_WRITE_REG(par, default_grn[j], TGA_RAMDAC_REG); - TGA_WRITE_REG(par, default_blu[j], TGA_RAMDAC_REG); - } - for (i = 0; i < 240 * 3; i += 4) { -#else for (i = 0; i < 256 * 3; i += 4) { -#endif TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG); TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); @@ -646,16 +623,8 @@ tgafb_blank(int blank, struct fb_info *info) * Acceleration. */ -/** - * tgafb_imageblit - REQUIRED function. Can use generic routines if - * non acclerated hardware and packed pixel based. - * Copies a image from system memory to the screen. - * - * @info: frame buffer structure that represents a single frame buffer - * @image: structure defining the image. - */ static void -tgafb_imageblit(struct fb_info *info, const struct fb_image *image) +tgafb_mono_imageblit(struct fb_info *info, const struct fb_image *image) { struct tga_par *par = (struct tga_par *) info->par; u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask; @@ -665,6 +634,17 @@ tgafb_imageblit(struct fb_info *info, const struct fb_image *image) void __iomem *regs_base; void __iomem *fb_base; + is8bpp = info->var.bits_per_pixel == 8; + + /* For copies that aren't pixel expansion, there's little we + can do better than the generic code. */ + /* ??? There is a DMA write mode; I wonder if that could be + made to pull the data from the image buffer... */ + if (image->depth > 1) { + cfb_imageblit(info, image); + return; + } + dx = image->dx; dy = image->dy; width = image->width; @@ -682,18 +662,8 @@ tgafb_imageblit(struct fb_info *info, const struct fb_image *image) if (dy + height > vyres) height = vyres - dy; - /* For copies that aren't pixel expansion, there's little we - can do better than the generic code. */ - /* ??? There is a DMA write mode; I wonder if that could be - made to pull the data from the image buffer... */ - if (image->depth > 1) { - cfb_imageblit(info, image); - return; - } - regs_base = par->tga_regs_base; fb_base = par->tga_fb_base; - is8bpp = info->var.bits_per_pixel == 8; /* Expand the color values to fill 32-bits. */ /* ??? Would be nice to notice colour changes elsewhere, so @@ -871,6 +841,85 @@ tgafb_imageblit(struct fb_info *info, const struct fb_image *image) regs_base + TGA_MODE_REG); } +static void +tgafb_clut_imageblit(struct fb_info *info, const struct fb_image *image) +{ + struct tga_par *par = (struct tga_par *) info->par; + u32 color, dx, dy, width, height, vxres, vyres; + u32 *palette = ((u32 *)info->pseudo_palette); + unsigned long pos, line_length, i, j; + const unsigned char *data; + void *regs_base, *fb_base; + + dx = image->dx; + dy = image->dy; + width = image->width; + height = image->height; + vxres = info->var.xres_virtual; + vyres = info->var.yres_virtual; + line_length = info->fix.line_length; + + /* Crop the image to the screen. */ + if (dx > vxres || dy > vyres) + return; + if (dx + width > vxres) + width = vxres - dx; + if (dy + height > vyres) + height = vyres - dy; + + regs_base = par->tga_regs_base; + fb_base = par->tga_fb_base; + + pos = dy * line_length + (dx * 4); + data = image->data; + + /* Now copy the image, color_expanding via the palette. */ + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) { + color = palette[*data++]; + __raw_writel(color, fb_base + pos + j*4); + } + pos += line_length; + } +} + +/** + * tgafb_imageblit - REQUIRED function. Can use generic routines if + * non acclerated hardware and packed pixel based. + * Copies a image from system memory to the screen. + * + * @info: frame buffer structure that represents a single frame buffer + * @image: structure defining the image. + */ +static void +tgafb_imageblit(struct fb_info *info, const struct fb_image *image) +{ + unsigned int is8bpp = info->var.bits_per_pixel == 8; + + /* If a mono image, regardless of FB depth, go do it. */ + if (image->depth == 1) { + tgafb_mono_imageblit(info, image); + return; + } + + /* For copies that aren't pixel expansion, there's little we + can do better than the generic code. */ + /* ??? There is a DMA write mode; I wonder if that could be + made to pull the data from the image buffer... */ + if (image->depth == info->var.bits_per_pixel) { + cfb_imageblit(info, image); + return; + } + + /* If 24-plane FB and the image is 8-plane with CLUT, we can do it. */ + if (!is8bpp && image->depth == 8) { + tgafb_clut_imageblit(info, image); + return; + } + + /* Silently return... */ +} + /** * tgafb_fillrect - REQUIRED function. Can use generic routines if * non acclerated hardware and packed pixel based. @@ -1480,6 +1529,26 @@ tgafb_init_fix(struct fb_info *info) info->fix.ywrapstep = 0; info->fix.accel = FB_ACCEL_DEC_TGA; + + /* + * These are needed by fb_set_logo_truepalette(), so we + * set them here for 24-plane cards. + */ + if (tga_type != TGA_TYPE_8PLANE) { + info->var.red.length = 8; + info->var.green.length = 8; + info->var.blue.length = 8; + info->var.red.offset = 16; + info->var.green.offset = 8; + info->var.blue.offset = 0; + } +} + +static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) +{ + /* We just use this to catch switches out of graphics mode. */ + tgafb_set_par(info); /* A bit of overkill for BASE_ADDR reset. */ + return 0; } static int __devinit |