static LIST_HEAD(kernel_fb_helper_list);
-static struct slow_work_ops output_status_change_ops;
-
/* simple single crtc case helper function */
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
{
int drm_fb_helper_init(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
- int crtc_count, int max_conn_count,
- bool polled)
+ int crtc_count, int max_conn_count)
{
struct drm_crtc *crtc;
int ret = 0;
int i;
fb_helper->dev = dev;
- fb_helper->poll_enabled = polled;
-
- slow_work_register_user(THIS_MODULE);
- delayed_slow_work_init(&fb_helper->output_status_change_slow_work,
- &output_status_change_ops);
INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
drm_fb_helper_crtc_free(fb_helper);
- delayed_slow_work_cancel(&fb_helper->output_status_change_slow_work);
- slow_work_unregister_user(THIS_MODULE);
}
EXPORT_SYMBOL(drm_fb_helper_fini);
if (fb_helper->delayed_hotplug) {
fb_helper->delayed_hotplug = false;
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 0);
+ drm_fb_helper_hotplug_event(fb_helper);
}
return 0;
}
if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {
/* hmm everyone went away - assume VGA cable just fell out
and will come back later. */
- DRM_ERROR("Cannot find any crtc or sizes - going 1024x768\n");
+ DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n");
sizes.fb_width = sizes.surface_width = 1024;
sizes.fb_height = sizes.surface_height = 768;
}
}
}
+static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ int count, i, j;
+ bool can_clone = false;
+ struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_display_mode *dmt_mode, *mode;
+
+ /* only contemplate cloning in the single crtc case */
+ if (fb_helper->crtc_count > 1)
+ return false;
+
+ count = 0;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (enabled[i])
+ count++;
+ }
+
+ /* only contemplate cloning if more than one connector is enabled */
+ if (count <= 1)
+ return false;
+
+ /* check the command line or if nothing common pick 1024x768 */
+ can_clone = true;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (!enabled[i])
+ continue;
+ fb_helper_conn = fb_helper->connector_info[i];
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ can_clone = false;
+ break;
+ }
+ for (j = 0; j < i; j++) {
+ if (!enabled[j])
+ continue;
+ if (!drm_mode_equal(modes[j], modes[i]))
+ can_clone = false;
+ }
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using command line\n");
+ return true;
+ }
+
+ /* try and find a 1024x768 mode on each connector */
+ can_clone = true;
+ dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60);
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+
+ if (!enabled[i])
+ continue;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ if (drm_mode_equal(mode, dmt_mode))
+ modes[i] = mode;
+ }
+ if (!modes[i])
+ can_clone = false;
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using 1024x768\n");
+ return true;
+ }
+ DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
+ return false;
+}
+
static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
struct drm_display_mode **modes,
bool *enabled, int width, int height)
break;
if (o < n) {
- /* ignore cloning for now */
- continue;
+ /* ignore cloning unless only a single crtc */
+ if (fb_helper->crtc_count > 1)
+ continue;
+
+ if (!drm_mode_equal(modes[o], modes[n]))
+ continue;
}
crtcs[n] = crtc;
drm_enable_connectors(fb_helper, enabled);
- ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
- if (!ret)
- DRM_ERROR("Unable to find initial modes\n");
+ ret = drm_target_cloned(fb_helper, modes, enabled, width, height);
+ if (!ret) {
+ ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
+ if (!ret)
+ DRM_ERROR("Unable to find initial modes\n");
+ }
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height);
* we shouldn't end up with no modes here.
*/
if (count == 0) {
- if (fb_helper->poll_enabled) {
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work,
- 5*HZ);
- printk(KERN_INFO "No connectors reported connected with modes - started polling\n");
- } else
- printk(KERN_INFO "No connectors reported connected with modes\n");
+ printk(KERN_INFO "No connectors reported connected with modes\n");
}
drm_setup_crtcs(fb_helper);
}
EXPORT_SYMBOL(drm_fb_helper_initial_config);
-/* we got a hotplug irq - need to update fbcon */
-void drm_helper_fb_hpd_irq_event(struct drm_fb_helper *fb_helper)
-{
- /* if we don't have the fbdev registered yet do nothing */
- if (!fb_helper->fbdev)
- return;
-
- /* schedule a slow work asap */
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 0);
-}
-EXPORT_SYMBOL(drm_helper_fb_hpd_irq_event);
-
-bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, bool polled)
+bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
{
int count = 0;
- int ret;
u32 max_width, max_height, bpp_sel;
-
- if (!fb_helper->fb)
- return false;
- DRM_DEBUG_KMS("\n");
-
- max_width = fb_helper->fb->width;
- max_height = fb_helper->fb->height;
- bpp_sel = fb_helper->fb->bits_per_pixel;
-
- count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
- max_height);
- if (fb_helper->poll_enabled && !polled) {
- if (count) {
- delayed_slow_work_cancel(&fb_helper->output_status_change_slow_work);
- } else {
- ret = delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 5*HZ);
- }
- }
- drm_setup_crtcs(fb_helper);
-
- return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
-}
-EXPORT_SYMBOL(drm_helper_fb_hotplug_event);
-
-/*
- * delayed work queue execution function
- * - check if fbdev is actually in use on the gpu
- * - if not set delayed flag and repoll if necessary
- * - check for connector status change
- * - repoll if 0 modes found
- *- call driver output status changed notifier
- */
-static void output_status_change_execute(struct slow_work *work)
-{
- struct delayed_slow_work *delayed_work = container_of(work, struct delayed_slow_work, work);
- struct drm_fb_helper *fb_helper = container_of(delayed_work, struct drm_fb_helper, output_status_change_slow_work);
- struct drm_connector *connector;
- enum drm_connector_status old_status, status;
- bool repoll, changed = false;
- int ret;
- int i;
bool bound = false, crtcs_bound = false;
struct drm_crtc *crtc;
- repoll = fb_helper->poll_enabled;
+ if (!fb_helper->fb)
+ return false;
- /* first of all check the fbcon framebuffer is actually bound to any crtc */
- /* take into account that no crtc at all maybe bound */
list_for_each_entry(crtc, &fb_helper->dev->mode_config.crtc_list, head) {
if (crtc->fb)
crtcs_bound = true;
bound = true;
}
- if (bound == false && crtcs_bound) {
+ if (!bound && crtcs_bound) {
fb_helper->delayed_hotplug = true;
- goto requeue;
+ return false;
}
+ DRM_DEBUG_KMS("\n");
- for (i = 0; i < fb_helper->connector_count; i++) {
- connector = fb_helper->connector_info[i]->connector;
- old_status = connector->status;
- status = connector->funcs->detect(connector);
- if (old_status != status) {
- changed = true;
- }
- if (status == connector_status_connected && repoll) {
- DRM_DEBUG("%s is connected - stop polling\n", drm_get_connector_name(connector));
- repoll = false;
- }
- }
+ max_width = fb_helper->fb->width;
+ max_height = fb_helper->fb->height;
+ bpp_sel = fb_helper->fb->bits_per_pixel;
- if (changed) {
- if (fb_helper->funcs->fb_output_status_changed)
- fb_helper->funcs->fb_output_status_changed(fb_helper);
- }
+ count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
+ max_height);
+ drm_setup_crtcs(fb_helper);
-requeue:
- if (repoll) {
- ret = delayed_slow_work_enqueue(delayed_work, 5*HZ);
- if (ret)
- DRM_ERROR("delayed enqueue failed %d\n", ret);
- }
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
}
-
-static struct slow_work_ops output_status_change_ops = {
- .execute = output_status_change_execute,
-};
+EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
git.openpandora.org / pandora-kernel.git / blobdiff