| Message ID | 1359104515-8907-5-git-send-email-s.trumtrar@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Friday, January 25, 2013 6:02 PM, Steffen Trumtrar wrote > > Add a function to convert from the generic videomode to a fb_videomode. > > Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> > Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> > Acked-by: Thierry Reding <thierry.reding@avionic-design.de> > Tested-by: Thierry Reding <thierry.reding@avionic-design.de> > Tested-by: Philipp Zabel <p.zabel@pengutronix.de> > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Tested-by: Afzal Mohammed <Afzal@ti.com> > Tested-by: Rob Clark <robclark@gmail.com> > Tested-by: Leela Krishna Amudala <leelakrishna.a@gmail.com> > --- > drivers/video/fbmon.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/fb.h | 4 ++++ > 2 files changed, 56 insertions(+) > > diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c > index cef6557..17ce135 100644 > --- a/drivers/video/fbmon.c > +++ b/drivers/video/fbmon.c > @@ -31,6 +31,7 @@ > #include <linux/pci.h> > #include <linux/slab.h> > #include <video/edid.h> > +#include <video/videomode.h> > #ifdef CONFIG_PPC_OF > #include <asm/prom.h> > #include <asm/pci-bridge.h> > @@ -1373,6 +1374,57 @@ 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 fb_videomode_from_videomode(const struct videomode *vm, > + struct fb_videomode *fbmode) > +{ > + unsigned int htotal, vtotal; > + > + 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; > + > + /* prevent division by zero in KHZ2PICOS macro */ > + fbmode->pixclock = vm->pixelclock ? > + KHZ2PICOS(vm->pixelclock / 1000) : 0; > + > + fbmode->sync = 0; > + fbmode->vmode = 0; > + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) > + fbmode->sync |= FB_SYNC_HOR_HIGH_ACT; > + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) Hi Steffen Trumtrar, Um, it seems to be a type. 'H'SYNC -> 'V'SYNC Thus, it would be changed as below: VESA_DMT_HSYNC_HIGH -> VESA_DMT_VSYNC_HIGH Best regards, Jingoo Han > + fbmode->sync |= FB_SYNC_VERT_HIGH_ACT; > + if (vm->data_flags & DISPLAY_FLAGS_INTERLACED) > + fbmode->vmode |= FB_VMODE_INTERLACED; > + if (vm->data_flags & DISPLAY_FLAGS_DOUBLESCAN) > + fbmode->vmode |= FB_VMODE_DOUBLE; > + fbmode->flag = 0; > + > + htotal = vm->hactive + vm->hfront_porch + vm->hback_porch + > + vm->hsync_len; > + vtotal = vm->vactive + vm->vfront_porch + vm->vback_porch + > + vm->vsync_len; > + /* prevent division by zero */ > + if (htotal && vtotal) { > + fbmode->refresh = vm->pixelclock / (htotal * vtotal); > + /* a mode must have htotal and vtotal != 0 or it is invalid */ > + } else { > + fbmode->refresh = 0; > + return -EINVAL; > + } > + > + return 0; > +} > +EXPORT_SYMBOL_GPL(fb_videomode_from_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..100a176 100644 > --- a/include/linux/fb.h > +++ b/include/linux/fb.h > @@ -19,6 +19,7 @@ struct vm_area_struct; > struct fb_info; > struct device; > struct file; > +struct videomode; > > /* Definitions below are used in the parsed monitor specs */ > #define FB_DPMS_ACTIVE_OFF 1 > @@ -714,6 +715,9 @@ 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 fb_videomode_from_videomode(const 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 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi! On Fri, Feb 01, 2013 at 06:29:50PM +0900, Jingoo Han wrote: > On Friday, January 25, 2013 6:02 PM, Steffen Trumtrar wrote > > > > + fbmode->sync = 0; > > + fbmode->vmode = 0; > > + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) > > + fbmode->sync |= FB_SYNC_HOR_HIGH_ACT; > > + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) > > Um, it seems to be a type. 'H'SYNC -> 'V'SYNC > Thus, it would be changed as below: > > VESA_DMT_HSYNC_HIGH -> VESA_DMT_VSYNC_HIGH Damn. You are right, that is a typo. But I guess some maintainer (Dave) really, really wants to take the series now and this can wait for an -rc. No?! ;-) Thanks, Steffen > > > + fbmode->sync |= FB_SYNC_VERT_HIGH_ACT; > > + if (vm->data_flags & DISPLAY_FLAGS_INTERLACED) > > + fbmode->vmode |= FB_VMODE_INTERLACED; > > + if (vm->data_flags & DISPLAY_FLAGS_DOUBLESCAN) > > + fbmode->vmode |= FB_VMODE_DOUBLE; > > + fbmode->flag = 0; > > +
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c index cef6557..17ce135 100644 --- a/drivers/video/fbmon.c +++ b/drivers/video/fbmon.c @@ -31,6 +31,7 @@ #include <linux/pci.h> #include <linux/slab.h> #include <video/edid.h> +#include <video/videomode.h> #ifdef CONFIG_PPC_OF #include <asm/prom.h> #include <asm/pci-bridge.h> @@ -1373,6 +1374,57 @@ 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 fb_videomode_from_videomode(const struct videomode *vm, + struct fb_videomode *fbmode) +{ + unsigned int htotal, vtotal; + + 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; + + /* prevent division by zero in KHZ2PICOS macro */ + fbmode->pixclock = vm->pixelclock ? + KHZ2PICOS(vm->pixelclock / 1000) : 0; + + fbmode->sync = 0; + fbmode->vmode = 0; + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) + fbmode->sync |= FB_SYNC_HOR_HIGH_ACT; + if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) + fbmode->sync |= FB_SYNC_VERT_HIGH_ACT; + if (vm->data_flags & DISPLAY_FLAGS_INTERLACED) + fbmode->vmode |= FB_VMODE_INTERLACED; + if (vm->data_flags & DISPLAY_FLAGS_DOUBLESCAN) + fbmode->vmode |= FB_VMODE_DOUBLE; + fbmode->flag = 0; + + htotal = vm->hactive + vm->hfront_porch + vm->hback_porch + + vm->hsync_len; + vtotal = vm->vactive + vm->vfront_porch + vm->vback_porch + + vm->vsync_len; + /* prevent division by zero */ + if (htotal && vtotal) { + fbmode->refresh = vm->pixelclock / (htotal * vtotal); + /* a mode must have htotal and vtotal != 0 or it is invalid */ + } else { + fbmode->refresh = 0; + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(fb_videomode_from_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..100a176 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -19,6 +19,7 @@ struct vm_area_struct; struct fb_info; struct device; struct file; +struct videomode; /* Definitions below are used in the parsed monitor specs */ #define FB_DPMS_ACTIVE_OFF 1 @@ -714,6 +715,9 @@ 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 fb_videomode_from_videomode(const 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,