[PATCH v7 5/8] fbmon: add videomode helpers
From: Steffen Trumtrar <hidden>
Date: 2012-10-31 09:28:05
Also in:
dri-devel, linux-fbdev, linux-media
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
Add a function to convert from the generic videomode to a fb_videomode. Signed-off-by: Steffen Trumtrar <redacted> --- drivers/video/fbmon.c | 36 ++++++++++++++++++++++++++++++++++++ include/linux/fb.h | 2 ++ 2 files changed, 38 insertions(+)
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index cef6557..b9e6ab3 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c@@ -1373,6 +1373,42 @@ int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var, struct fb_inf kfree(timings); return err; } + +#if IS_ENABLED(CONFIG_VIDEOMODE) +int videomode_to_fb_videomode(struct videomode *vm, struct fb_videomode *fbmode) +{ + fbmode->xres = vm->hactive; + fbmode->left_margin = vm->hback_porch; + fbmode->right_margin = vm->hfront_porch; + fbmode->hsync_len = vm->hsync_len; + + fbmode->yres = vm->vactive; + fbmode->upper_margin = vm->vback_porch; + fbmode->lower_margin = vm->vfront_porch; + fbmode->vsync_len = vm->vsync_len; + + fbmode->pixclock = KHZ2PICOS(vm->pixelclock / 1000); + + fbmode->sync = 0; + fbmode->vmode = 0; + if (vm->hah) + fbmode->sync |= FB_SYNC_HOR_HIGH_ACT; + if (vm->vah) + fbmode->sync |= FB_SYNC_VERT_HIGH_ACT; + if (vm->interlaced) + fbmode->vmode |= FB_VMODE_INTERLACED; + if (vm->doublescan) + fbmode->vmode |= FB_VMODE_DOUBLE; + + fbmode->refresh = 60; + fbmode->flag = 0; + + return 0; +} +EXPORT_SYMBOL_GPL(videomode_to_fb_videomode); +#endif + + #else int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var) {
diff --git a/include/linux/fb.h b/include/linux/fb.h
index c7a9571..46c665b 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h@@ -714,6 +714,8 @@ extern void fb_destroy_modedb(struct fb_videomode *modedb); extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb); extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter); +extern int videomode_to_fb_videomode(struct videomode *vm, struct fb_videomode *fbmode); + /* drivers/video/modedb.c */ #define VESA_MODEDB_SIZE 34 extern void fb_var_to_videomode(struct fb_videomode *mode,
--
1.7.10.4