diff options
| -rw-r--r-- | linux-core/intel_fb.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/linux-core/intel_fb.c b/linux-core/intel_fb.c index 16788411..0780aae7 100644 --- a/linux-core/intel_fb.c +++ b/linux-core/intel_fb.c @@ -525,6 +525,92 @@ static int intelfb_pan_display(struct fb_var_screeninfo *var, return ret; } +static void intelfb_on(struct fb_info *info) +{ + struct intelfb_par *par = info->par; + struct drm_device *dev = par->dev; + struct drm_crtc *crtc; + struct drm_encoder *encoder; + int i; + + /* + * For each CRTC in this fb, find all associated encoders + * and turn them off, then turn off the CRTC. + */ + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + + for (i = 0; i < par->crtc_count; i++) + if (crtc->base.id == par->crtc_ids[i]) + break; + + crtc_funcs->dpms(crtc, DPMSModeOn); + + /* Found a CRTC on this fb, now find encoders */ + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc == crtc) { + struct drm_encoder_helper_funcs *encoder_funcs; + encoder_funcs = encoder->helper_private; + encoder_funcs->dpms(encoder, DPMSModeOn); + } + } + } +} + +static void intelfb_off(struct fb_info *info, int dpms_mode) +{ + struct intelfb_par *par = info->par; + struct drm_device *dev = par->dev; + struct drm_crtc *crtc; + struct drm_encoder *encoder; + int i; + + /* + * For each CRTC in this fb, find all associated encoders + * and turn them off, then turn off the CRTC. + */ + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + + for (i = 0; i < par->crtc_count; i++) + if (crtc->base.id == par->crtc_ids[i]) + break; + + /* Found a CRTC on this fb, now find encoders */ + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc == crtc) { + struct drm_encoder_helper_funcs *encoder_funcs; + encoder_funcs = encoder->helper_private; + encoder_funcs->dpms(encoder, dpms_mode); + } + } + if (dpms_mode == DPMSModeOff) + crtc_funcs->dpms(crtc, dpms_mode); + } +} + +int intelfb_blank(int blank, struct fb_info *info) +{ + switch (blank) { + case FB_BLANK_UNBLANK: + intelfb_on(info); + break; + case FB_BLANK_NORMAL: + intelfb_off(info, DPMSModeStandby); + break; + case FB_BLANK_HSYNC_SUSPEND: + intelfb_off(info, DPMSModeStandby); + break; + case FB_BLANK_VSYNC_SUSPEND: + intelfb_off(info, DPMSModeSuspend); + break; + case FB_BLANK_POWERDOWN: + intelfb_off(info, DPMSModeOff); + break; + } + return 0; +} + static struct fb_ops intelfb_ops = { .owner = THIS_MODULE, //.fb_open = intelfb_open, @@ -539,6 +625,7 @@ static struct fb_ops intelfb_ops = { .fb_copyarea = cfb_copyarea, //intelfb_copyarea, .fb_imageblit = cfb_imageblit, //intelfb_imageblit, .fb_pan_display = intelfb_pan_display, + .fb_blank = intelfb_blank, }; /** |