diff options
| -rw-r--r-- | gralloc_drm_kms.c | 194 |
1 files changed, 134 insertions, 60 deletions
diff --git a/gralloc_drm_kms.c b/gralloc_drm_kms.c index 77904cf..d0aacc1 100644 --- a/gralloc_drm_kms.c +++ b/gralloc_drm_kms.c @@ -38,6 +38,61 @@ #include <drm_fourcc.h> +struct uevent { + const char *action; + const char *path; + const char *subsystem; + const char *device_name; + int major; + int minor; + int hotplug; + int switchstate; +}; + +static void parse_event(const char *msg, struct uevent *uevent) +{ + uevent->action = ""; + uevent->path = ""; + uevent->subsystem = ""; + uevent->major = -1; + uevent->minor = -1; + uevent->device_name = ""; + uevent->hotplug = 0; + uevent->switchstate = -1; + + while (*msg) { + if (!strncmp(msg, "ACTION=", 7)) { + msg += 7; + uevent->action = msg; + } else if (!strncmp(msg, "DEVPATH=", 8)) { + msg += 8; + uevent->path = msg; + } else if (!strncmp(msg, "SUBSYSTEM=", 10)) { + msg += 10; + uevent->subsystem = msg; + } else if (!strncmp(msg, "MAJOR=", 6)) { + msg += 6; + uevent->major = atoi(msg); + } else if (!strncmp(msg, "MINOR=", 6)) { + msg += 6; + uevent->minor = atoi(msg); + } else if (!strncmp(msg, "DEVNAME=", 8)) { + msg += 8; + uevent->device_name = msg; + } else if (!strncmp(msg, "HOTPLUG=1", 9)) { + msg += 9; + uevent->hotplug = 1; + } else if (!strncmp(msg, "SWITCH_STATE=", 13)) { + msg += 13; + uevent->switchstate = atoi(msg); + } + + /* advance to after the next \0 */ + while (*msg++) + ; + } +} + /* * Return true if a bo needs fb. */ @@ -381,6 +436,33 @@ int gralloc_drm_set_plane_handle(struct gralloc_drm_t *drm, return -EINVAL; } +static int drm_kms_blit_to_hdmi(struct gralloc_drm_t *drm, struct gralloc_drm_bo_t *bo) +{ + int ret = 0; + if (drm->hdmi.active && drm->hdmi_mode == HDMI_CLONED && drm->hdmi.bo) { + + int dst_x1 = 0, dst_y1 = 0; + + if (drm->hdmi.bo->handle->width > bo->handle->width) + dst_x1 = (drm->hdmi.bo->handle->width - bo->handle->width) / 2; + if (drm->hdmi.bo->handle->height > bo->handle->height) + dst_y1 = (drm->hdmi.bo->handle->height - bo->handle->height) / 2; + + drm->drv->blit(drm->drv, drm->hdmi.bo, bo, + dst_x1, dst_y1, + dst_x1 + bo->handle->width, + dst_y1 + bo->handle->height, + 0, 0, bo->handle->width, bo->handle->height); + + ret = drmModePageFlip(drm->fd, drm->hdmi.crtc_id, drm->hdmi.bo->fb_id, 0, NULL); + if (ret && errno != EBUSY) + ALOGE("failed to perform page flip for hdmi (%s) (crtc %d fb %d))", + strerror(errno), drm->hdmi.crtc_id, drm->hdmi.bo->fb_id); + } + + return ret; +} + /* * Schedule a page flip. */ @@ -406,26 +488,7 @@ static int drm_kms_page_flip(struct gralloc_drm_t *drm, return 0; pthread_mutex_lock(&drm->hdmi_mutex); - if (drm->hdmi.active && drm->hdmi_mode == HDMI_CLONED && drm->hdmi.bo) { - - int dst_x1 = 0, dst_y1 = 0; - - if (drm->hdmi.bo->handle->width > bo->handle->width) - dst_x1 = (drm->hdmi.bo->handle->width - bo->handle->width) / 2; - if (drm->hdmi.bo->handle->height > bo->handle->height) - dst_y1 = (drm->hdmi.bo->handle->height - bo->handle->height) / 2; - - drm->drv->blit(drm->drv, drm->hdmi.bo, bo, - dst_x1, dst_y1, - dst_x1 + bo->handle->width, - dst_y1 + bo->handle->height, - 0, 0, bo->handle->width, bo->handle->height); - - ret = drmModePageFlip(drm->fd, drm->hdmi.crtc_id, drm->hdmi.bo->fb_id, 0, NULL); - if (ret && errno != EBUSY) - ALOGE("failed to perform page flip for hdmi (%s) (crtc %d fb %d))", - strerror(errno), drm->hdmi.crtc_id, drm->hdmi.bo->fb_id); - } + drm_kms_blit_to_hdmi(drm, bo); pthread_mutex_unlock(&drm->hdmi_mutex); /* set planes to be displayed */ @@ -975,7 +1038,7 @@ static drmModeConnectorPtr fetch_connector(struct gralloc_drm_t *drm, * a private framebuffer for it. This is called on startup if * hdmi cable is connected and also on hotplug events. */ -static void init_hdmi_output(struct gralloc_drm_t *drm, +static int init_hdmi_output(struct gralloc_drm_t *drm, drmModeConnectorPtr connector) { drm_kms_init_with_connector(drm, &drm->hdmi, connector); @@ -997,6 +1060,8 @@ static void init_hdmi_output(struct gralloc_drm_t *drm, drm->hdmi_mode = HDMI_CLONED; drm->hdmi.active = 1; + + return 0; } @@ -1009,6 +1074,7 @@ static void *hdmi_observer(void *data) drmModeConnectorPtr hdmi; struct gralloc_drm_t *drm = (struct gralloc_drm_t *) data; + struct uevent event; uevent_init(); @@ -1018,56 +1084,64 @@ static void *hdmi_observer(void *data) /* this polls */ int len = uevent_next_event(uevent_desc, sizeof(uevent_desc) - 2); + if (!len) continue; - if(len && strstr(uevent_desc, "devices/virtual/switch/hdmi")) { + parse_event(uevent_desc, &event); + ALOGD_IF(0, "event { '%s', '%s', '%s', %d, %d, %d, %d }\n", + event.action, event.path, event.subsystem, + event.major, event.minor, + event.switchstate, event.hotplug); - /* check what changed */ - const char *prop = uevent_desc + strlen(uevent_desc) + 1; + if (!strcmp(event.path, "devices/virtual/switch/hdmi")) { + if (event.switchstate != -1) { + pthread_mutex_lock(&drm->hdmi_mutex); - while (*prop) { + if (event.switchstate) { + hdmi = fetch_connector(drm, DRM_MODE_CONNECTOR_HDMIA); + if (hdmi) { + ALOGD("init hdmi on switch_state event"); + init_hdmi_output(drm, hdmi); - const char *state = strstr(prop, "SWITCH_STATE="); - if (state) { - unsigned int value = 0; - state += strlen("SWITCH_STATE="); - value = atoi(state); + /* will trigger modeset */ + drm->first_post = 1; - pthread_mutex_lock(&drm->hdmi_mutex); - - if (value) { - hdmi = fetch_connector(drm, DRM_MODE_CONNECTOR_HDMIA); - if (hdmi) { - - ALOGD("init hdmi on hotplug event"); - init_hdmi_output(drm, hdmi); - - /* will trigger modeset */ - drm->first_post = 1; + drmModeFreeConnector(hdmi); + } + } else { + drm->hdmi.active = 0; - drmModeFreeConnector(hdmi); + ALOGD("destroy hdmi private buffer"); + gralloc_drm_bo_decref(drm->hdmi.bo); + drm->hdmi.bo = NULL; + } - pthread_mutex_unlock(&drm->hdmi_mutex); - } - break; - } else { - drm->hdmi.active = 0; + pthread_mutex_unlock(&drm->hdmi_mutex); + } + } else if (!strcmp(event.subsystem, "drm") && + !strcmp(event.device_name, "dri/card0") && event.hotplug) { + pthread_mutex_lock(&drm->hdmi_mutex); + + hdmi = fetch_connector(drm, DRM_MODE_CONNECTOR_HDMIA); + if (hdmi && !drm->hdmi.active) { + ALOGD("init hdmi on hotplug event"); + if (!init_hdmi_output(drm, hdmi)) { + drm_kms_set_crtc(drm, &drm->hdmi, drm->hdmi.bo->fb_id); + } - ALOGD("destroy hdmi private buffer"); - gralloc_drm_bo_decref(drm->hdmi.bo); - drm->hdmi.bo = NULL; + /* will trigger modeset */ + drm->first_post = 1; + } else if (!hdmi && drm->hdmi.active) { + drm->hdmi.active = 0; - pthread_mutex_unlock(&drm->hdmi_mutex); - break; - } + ALOGD("destroy hdmi private buffer"); + gralloc_drm_bo_decref(drm->hdmi.bo); + drm->hdmi.bo = NULL; + } - pthread_mutex_unlock(&drm->hdmi_mutex); - } + if (hdmi) + drmModeFreeConnector(hdmi); - /* next property/value pair */ - prop += strlen(prop) + 1; - if (prop - uevent_desc >= len) - break; - } + pthread_mutex_unlock(&drm->hdmi_mutex); } } |