diff options
Diffstat (limited to 'include/drm/drm_modes.h')
| -rw-r--r-- | include/drm/drm_modes.h | 77 |
1 files changed, 72 insertions, 5 deletions
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h index cdf2a299ccd4..b9bb92e4b029 100644 --- a/include/drm/drm_modes.h +++ b/include/drm/drm_modes.h @@ -139,6 +139,35 @@ enum drm_mode_status { .vscan = (vs), .flags = (f) /** + * DRM_MODE_RES_MM - Calculates the display size from resolution and DPI + * @res: The resolution in pixel + * @dpi: The number of dots per inch + */ +#define DRM_MODE_RES_MM(res, dpi) \ + (((res) * 254ul) / ((dpi) * 10ul)) + +#define __DRM_MODE_INIT(pix, hd, vd, hd_mm, vd_mm) \ + .type = DRM_MODE_TYPE_DRIVER, .clock = (pix), \ + .hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \ + .htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \ + .vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \ + .height_mm = (vd_mm) + +/** + * DRM_MODE_INIT - Initialize display mode + * @hz: Vertical refresh rate in Hertz + * @hd: Horizontal resolution, width + * @vd: Vertical resolution, height + * @hd_mm: Display width in millimeters + * @vd_mm: Display height in millimeters + * + * This macro initializes a &drm_display_mode that contains information about + * refresh rate, resolution and physical size. + */ +#define DRM_MODE_INIT(hz, hd, vd, hd_mm, vd_mm) \ + __DRM_MODE_INIT((hd) * (vd) * (hz) / 1000 /* kHz */, hd, vd, hd_mm, vd_mm) + +/** * DRM_SIMPLE_MODE - Simple display mode * @hd: Horizontal resolution, width * @vd: Vertical resolution, height @@ -149,11 +178,7 @@ enum drm_mode_status { * resolution and physical size. */ #define DRM_SIMPLE_MODE(hd, vd, hd_mm, vd_mm) \ - .type = DRM_MODE_TYPE_DRIVER, .clock = 1 /* pass validation */, \ - .hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \ - .htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \ - .vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \ - .height_mm = (vd_mm) + __DRM_MODE_INIT(1 /* pass validation */, hd, vd, hd_mm, vd_mm) #define CRTC_INTERLACE_HALVE_V (1 << 0) /* halve V values for interlacing */ #define CRTC_STEREO_DOUBLE (1 << 1) /* adjust timings for stereo modes */ @@ -195,6 +220,9 @@ enum drm_mode_status { * @crtc_vsync_end: hardware mode vertical sync end * @crtc_vtotal: hardware mode vertical total size * + * This is the kernel API display mode information structure. For the + * user-space version see struct drm_mode_modeinfo. + * * The horizontal and vertical timings are defined per the following diagram. * * :: @@ -439,6 +467,25 @@ bool drm_mode_is_420_also(const struct drm_display_info *display, const struct drm_display_mode *mode); bool drm_mode_is_420(const struct drm_display_info *display, const struct drm_display_mode *mode); +void drm_set_preferred_mode(struct drm_connector *connector, + int hpref, int vpref); + +struct drm_display_mode *drm_analog_tv_mode(struct drm_device *dev, + enum drm_connector_tv_mode mode, + unsigned long pixel_clock_hz, + unsigned int hdisplay, + unsigned int vdisplay, + bool interlace); + +static inline struct drm_display_mode *drm_mode_analog_ntsc_480i(struct drm_device *dev) +{ + return drm_analog_tv_mode(dev, DRM_MODE_TV_MODE_NTSC, 13500000, 720, 480, true); +} + +static inline struct drm_display_mode *drm_mode_analog_pal_576i(struct drm_device *dev) +{ + return drm_analog_tv_mode(dev, DRM_MODE_TV_MODE_PAL, 13500000, 720, 576, true); +} struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh, @@ -458,9 +505,27 @@ void drm_display_mode_from_videomode(const struct videomode *vm, void drm_display_mode_to_videomode(const struct drm_display_mode *dmode, struct videomode *vm); void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags); + +#if defined(CONFIG_OF) int of_get_drm_display_mode(struct device_node *np, struct drm_display_mode *dmode, u32 *bus_flags, int index); +int of_get_drm_panel_display_mode(struct device_node *np, + struct drm_display_mode *dmode, u32 *bus_flags); +#else +static inline int of_get_drm_display_mode(struct device_node *np, + struct drm_display_mode *dmode, + u32 *bus_flags, int index) +{ + return -EINVAL; +} + +static inline int of_get_drm_panel_display_mode(struct device_node *np, + struct drm_display_mode *dmode, u32 *bus_flags) +{ + return -EINVAL; +} +#endif void drm_mode_set_name(struct drm_display_mode *mode); int drm_mode_vrefresh(const struct drm_display_mode *mode); @@ -471,6 +536,8 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags); void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src); +void drm_mode_init(struct drm_display_mode *dst, + const struct drm_display_mode *src); struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, const struct drm_display_mode *mode); bool drm_mode_match(const struct drm_display_mode *mode1, |