Add support for framebuffers with noncontiguous horizontal lines. Video drivers can set this value if the hardware requires it. In case a driver does not set it, the current value of xres * (bpp / 8) is used instead. Signed-off-by: Andre Heider <a.heider@xxxxxxxxx> --- drivers/video/fb.c | 11 +++++++++-- include/fb.h | 1 + 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/video/fb.c b/drivers/video/fb.c index 420e4e3..e80fab9 100644 --- a/drivers/video/fb.c +++ b/drivers/video/fb.c @@ -72,12 +72,16 @@ static int fb_setup_mode(struct device_d *dev, struct param_d *param, info->xres = info->mode->xres; info->yres = info->mode->yres; + info->stride = 0; ret = info->fbops->fb_activate_var(info); + if (!info->stride) + info->stride = info->xres * (info->bits_per_pixel >> 3); + if (!ret) { dev->resource[0].start = (resource_size_t)info->screen_base; - info->cdev.size = info->xres * info->yres * (info->bits_per_pixel >> 3); + info->cdev.size = info->stride * info->yres; dev->resource[0].end = dev->resource[0].start + info->cdev.size - 1; dev_param_set_generic(dev, param, val); } else @@ -122,9 +126,12 @@ int register_framebuffer(struct fb_info *info) dev = &info->dev; + if (!info->stride) + info->stride = info->xres * (info->bits_per_pixel >> 3); + info->cdev.ops = &fb_ops; info->cdev.name = asprintf("fb%d", id); - info->cdev.size = info->xres * info->yres * (info->bits_per_pixel >> 3); + info->cdev.size = info->stride * info->yres; info->cdev.dev = dev; info->cdev.priv = info; dev->resource = xzalloc(sizeof(struct resource)); diff --git a/include/fb.h b/include/fb.h index df4ba8e..ba46954 100644 --- a/include/fb.h +++ b/include/fb.h @@ -94,6 +94,7 @@ struct fb_info { u32 xres; /* visible resolution */ u32 yres; u32 bits_per_pixel; /* guess what */ + u32 stride; /* number of bytes in each line */ u32 grayscale; /* != 0 Graylevels instead of colors */ -- 1.8.3.2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox