diff options
Diffstat (limited to 'linux-core/drm_crtc_helper.c')
| -rw-r--r-- | linux-core/drm_crtc_helper.c | 833 |
1 files changed, 0 insertions, 833 deletions
diff --git a/linux-core/drm_crtc_helper.c b/linux-core/drm_crtc_helper.c deleted file mode 100644 index ebb44794..00000000 --- a/linux-core/drm_crtc_helper.c +++ /dev/null @@ -1,833 +0,0 @@ -/* (c) 2006-2007 Intel Corporation - * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> - * - * DRM core CRTC related functions - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that copyright - * notice and this permission notice appear in supporting documentation, and - * that the name of the copyright holders not be used in advertising or - * publicity pertaining to distribution of the software without specific, - * written prior permission. The copyright holders make no representations - * about the suitability of this software for any purpose. It is provided "as - * is" without express or implied warranty. - * - * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - * - * Authors: - * Keith Packard - * Eric Anholt <eric@anholt.net> - * Dave Airlie <airlied@linux.ie> - * Jesse Barnes <jesse.barnes@intel.com> - */ - -#include "drmP.h" -#include "drm_crtc.h" -#include "drm_crtc_helper.h" - -/* - * Detailed mode info for a standard 640x480@60Hz monitor - */ -static struct drm_display_mode std_mode[] = { - { DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656, - 752, 800, 0, 480, 490, 492, 525, 0, - DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */ -}; - -/** - * drm_helper_probe_connector_modes - get complete set of display modes - * @dev: DRM device - * @maxX: max width for modes - * @maxY: max height for modes - * - * LOCKING: - * Caller must hold mode config lock. - * - * Based on @dev's mode_config layout, scan all the connectors and try to detect - * modes on them. Modes will first be added to the connector's probed_modes - * list, then culled (based on validity and the @maxX, @maxY parameters) and - * put into the normal modes list. - * - * Intended to be used either at bootup time or when major configuration - * changes have occurred. - * - * FIXME: take into account monitor limits - */ -void drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY) -{ - struct drm_device *dev = connector->dev; - struct drm_display_mode *mode, *t; - struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; - int ret; - - DRM_DEBUG("%s\n", drm_get_connector_name(connector)); - /* set all modes to the unverified state */ - list_for_each_entry_safe(mode, t, &connector->modes, head) - mode->status = MODE_UNVERIFIED; - - connector->status = (*connector->funcs->detect)(connector); - - if (connector->status == connector_status_disconnected) { - DRM_DEBUG("%s is disconnected\n", drm_get_connector_name(connector)); - /* TODO set EDID to NULL */ - return; - } - - ret = (*connector_funcs->get_modes)(connector); - - if (ret) { - drm_mode_connector_list_update(connector); - } - - if (maxX && maxY) - drm_mode_validate_size(dev, &connector->modes, maxX, - maxY, 0); - list_for_each_entry_safe(mode, t, &connector->modes, head) { - if (mode->status == MODE_OK) - mode->status = (*connector_funcs->mode_valid)(connector,mode); - } - - - drm_mode_prune_invalid(dev, &connector->modes, true); - - if (list_empty(&connector->modes)) { - struct drm_display_mode *stdmode; - - DRM_DEBUG("No valid modes on %s\n", drm_get_connector_name(connector)); - - /* Should we do this here ??? - * When no valid EDID modes are available we end up - * here and bailed in the past, now we add a standard - * 640x480@60Hz mode and carry on. - */ - stdmode = drm_mode_duplicate(dev, &std_mode[0]); - drm_mode_probed_add(connector, stdmode); - drm_mode_list_concat(&connector->probed_modes, - &connector->modes); - - DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n", - drm_get_connector_name(connector)); - } - - drm_mode_sort(&connector->modes); - - DRM_DEBUG("Probed modes for %s\n", drm_get_connector_name(connector)); - list_for_each_entry_safe(mode, t, &connector->modes, head) { - mode->vrefresh = drm_mode_vrefresh(mode); - - drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); - drm_mode_debug_printmodeline(mode); - } -} -EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); - -void drm_helper_probe_connector_modes(struct drm_device *dev, uint32_t maxX, uint32_t maxY) -{ - struct drm_connector *connector; - - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - drm_helper_probe_single_connector_modes(connector, maxX, maxY); - } -} -EXPORT_SYMBOL(drm_helper_probe_connector_modes); - - -/** - * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config - * @crtc: CRTC to check - * - * LOCKING: - * Caller must hold mode config lock. - * - * Walk @crtc's DRM device's mode_config and see if it's in use. - * - * RETURNS: - * True if @crtc is part of the mode_config, false otherwise. - */ -bool drm_helper_crtc_in_use(struct drm_crtc *crtc) -{ - struct drm_encoder *encoder; - struct drm_device *dev = crtc->dev; - /* FIXME: Locking around list access? */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) - if (encoder->crtc == crtc) - return true; - return false; -} -EXPORT_SYMBOL(drm_helper_crtc_in_use); - -/** - * drm_disable_unused_functions - disable unused objects - * @dev: DRM device - * - * LOCKING: - * Caller must hold mode config lock. - * - * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled - * by calling its dpms function, which should power it off. - */ -void drm_helper_disable_unused_functions(struct drm_device *dev) -{ - struct drm_encoder *encoder; - struct drm_encoder_helper_funcs *encoder_funcs; - struct drm_crtc *crtc; - - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - encoder_funcs = encoder->helper_private; - if (!encoder->crtc) - (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); - } - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - crtc->enabled = drm_helper_crtc_in_use(crtc); - if (!crtc->enabled) { - crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); - crtc->fb = NULL; - } - } -} -EXPORT_SYMBOL(drm_helper_disable_unused_functions); - -static struct drm_display_mode *drm_has_preferred_mode(struct drm_connector *connector, int width, int height) -{ - struct drm_display_mode *mode; - - list_for_each_entry(mode, &connector->modes, head) { - if (drm_mode_width(mode) > width || - drm_mode_height(mode) > height) - continue; - if (mode->type & DRM_MODE_TYPE_PREFERRED) - return mode; - } - return NULL; -} - -static bool drm_connector_enabled(struct drm_connector *connector, bool strict) -{ - bool enable; - - if (strict) { - enable = connector->status == connector_status_connected; - } else { - enable = connector->status != connector_status_disconnected; - } - return enable; -} - -static void drm_enable_connectors(struct drm_device *dev, bool *enabled) -{ - bool any_enabled = false; - struct drm_connector *connector; - int i = 0; - - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - any_enabled |= enabled[i] = drm_connector_enabled(connector, true); - i++; - } - - if (!any_enabled) { - i = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - enabled[i] = drm_connector_enabled(connector, false); - i++; - } - } -} - -static bool drm_target_preferred(struct drm_device *dev, struct drm_display_mode **modes, - bool *enabled, int width, int height) -{ - struct drm_connector *connector; - struct drm_display_mode *preferred; - int i = 0; - - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - - if (enabled[i] == false) { - i++; - continue; - } - - modes[i] = drm_has_preferred_mode(connector, width, height); - if (!modes[i]) { - list_for_each_entry(modes[i], &connector->modes, head) - break; - } - i++; - } - return true; -} - -static int drm_pick_crtcs(struct drm_device *dev, - struct drm_crtc **best_crtcs, - struct drm_display_mode **modes, - int n, int width, int height) -{ - int c, o; - struct drm_connector *connector; - struct drm_connector_helper_funcs *connector_funcs; - struct drm_encoder *encoder; - struct drm_crtc *best_crtc; - int my_score, best_score, score; - struct drm_crtc **crtcs, *crtc; - - if (n == dev->mode_config.num_connector) - return 0; - c = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (c == n) - break; - c++; - } - - best_crtcs[n] = NULL; - best_crtc = NULL; - best_score = drm_pick_crtcs(dev, best_crtcs, modes, n+1, width, height); - if (modes[n] == NULL) - return best_score; - - crtcs = kmalloc(dev->mode_config.num_connector * sizeof(struct drm_crtc *), GFP_KERNEL); - if (!crtcs) - return best_score; - - my_score = 1; - if (connector->status == connector_status_connected) - my_score++; - if (drm_has_preferred_mode(connector, width, height)) - my_score++; - - connector_funcs = connector->helper_private; - encoder = connector_funcs->best_encoder(connector); - if (!encoder) - goto out; - - connector->encoder = encoder; - - /* select a crtc for this connector and then attempt to configure - remaining connectors */ - c = 0; - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - - if ((connector->encoder->possible_crtcs & (1 << c)) == 0) { - c++; - continue; - } - - for (o = 0; o < n; o++) - if (best_crtcs[o] == crtc) - break; - - if (o < n) { - /* ignore cloning for now */ - c++; - continue; - } - - crtcs[n] = crtc; - memcpy(crtcs, best_crtcs, n * sizeof(struct drm_crtc *)); - score = my_score + drm_pick_crtcs(dev, crtcs, modes, n + 1, width, height); - if (score > best_score) { - best_crtc = crtc; - best_score = score; - memcpy(best_crtcs, crtcs, dev->mode_config.num_connector * sizeof(struct drm_crtc *)); - } - c++; - } -out: - kfree(crtcs); - return best_score; -} - -static void drm_setup_crtcs(struct drm_device *dev) -{ - struct drm_crtc **crtcs; - struct drm_display_mode **modes; - struct drm_encoder *encoder; - struct drm_connector *connector; - bool *enabled; - int width, height; - int i, ret; - - width = dev->mode_config.max_width; - height = dev->mode_config.max_height; - - /* clean out all the encoder/crtc combos */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - encoder->crtc = NULL; - } - - crtcs = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_crtc *), GFP_KERNEL); - modes = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_display_mode *), GFP_KERNEL); - enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool), GFP_KERNEL); - - drm_enable_connectors(dev, enabled); - - ret = drm_target_preferred(dev, modes, enabled, width, height); - if (!ret) - DRM_ERROR("Unable to find initial modes\n"); - - drm_pick_crtcs(dev, crtcs, modes, 0, width, height); - - i = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - struct drm_display_mode *mode = modes[i]; - struct drm_crtc *crtc = crtcs[i]; - - if (connector->encoder == NULL) { - i++; - continue; - } - - if (mode && crtc) { - crtc->desired_mode = mode; - connector->encoder->crtc = crtc; - } else - connector->encoder->crtc = NULL; - i++; - } - - kfree(crtcs); - kfree(modes); - kfree(enabled); -} -/** - * drm_crtc_set_mode - set a mode - * @crtc: CRTC to program - * @mode: mode to use - * @x: width of mode - * @y: height of mode - * - * LOCKING: - * Caller must hold mode config lock. - * - * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance - * to fixup or reject the mode prior to trying to set it. - * - * RETURNS: - * True if the mode was set successfully, or false otherwise. - */ -bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, - int x, int y) -{ - struct drm_device *dev = crtc->dev; - struct drm_display_mode *adjusted_mode, saved_mode; - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - struct drm_encoder_helper_funcs *encoder_funcs; - int saved_x, saved_y; - struct drm_encoder *encoder; - bool ret = true; - - adjusted_mode = drm_mode_duplicate(dev, mode); - - crtc->enabled = drm_helper_crtc_in_use(crtc); - - if (!crtc->enabled) - return true; - - saved_mode = crtc->mode; - saved_x = crtc->x; - saved_y = crtc->y; - - /* Update crtc values up front so the driver can rely on them for mode - * setting. - */ - crtc->mode = *mode; - crtc->x = x; - crtc->y = y; - - if (drm_mode_equal(&saved_mode, &crtc->mode)) { - if (saved_x != crtc->x || saved_y != crtc->y) { - crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y); - goto done; - } - } - - /* Pass our mode to the connectors and the CRTC to give them a chance to - * adjust it according to limitations or connector properties, and also - * a chance to reject the mode entirely. - */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - - if (encoder->crtc != crtc) - continue; - encoder_funcs = encoder->helper_private; - if (!(ret = encoder_funcs->mode_fixup(encoder, mode, adjusted_mode))) { - goto done; - } - } - - if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) { - goto done; - } - - /* Prepare the encoders and CRTCs before setting the mode. */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - - if (encoder->crtc != crtc) - continue; - encoder_funcs = encoder->helper_private; - /* Disable the encoders as the first thing we do. */ - encoder_funcs->prepare(encoder); - } - - crtc_funcs->prepare(crtc); - - /* Set up the DPLL and any encoders state that needs to adjust or depend - * on the DPLL. - */ - crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y); - - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - - if (encoder->crtc != crtc) - continue; - - DRM_INFO("%s: set mode %s %x\n", drm_get_encoder_name(encoder), mode->name, mode->base.id); - encoder_funcs = encoder->helper_private; - encoder_funcs->mode_set(encoder, mode, adjusted_mode); - } - - /* Now, enable the clocks, plane, pipe, and connectors that we set up. */ - crtc_funcs->commit(crtc); - - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - - if (encoder->crtc != crtc) - continue; - - encoder_funcs = encoder->helper_private; - encoder_funcs->commit(encoder); - - } - - /* XXX free adjustedmode */ - drm_mode_destroy(dev, adjusted_mode); - /* TODO */ -// if (scrn->pScreen) -// drm_crtc_set_screen_sub_pixel_order(dev); - -done: - if (!ret) { - crtc->mode = saved_mode; - crtc->x = saved_x; - crtc->y = saved_y; - } - - return ret; -} -EXPORT_SYMBOL(drm_crtc_helper_set_mode); - - -/** - * drm_crtc_helper_set_config - set a new config from userspace - * @crtc: CRTC to setup - * @crtc_info: user provided configuration - * @new_mode: new mode to set - * @connector_set: set of connectors for the new config - * @fb: new framebuffer - * - * LOCKING: - * Caller must hold mode config lock. - * - * Setup a new configuration, provided by the user in @crtc_info, and enable - * it. - * - * RETURNS: - * Zero. (FIXME) - */ -int drm_crtc_helper_set_config(struct drm_mode_set *set) -{ - struct drm_device *dev; - struct drm_crtc **save_crtcs, *new_crtc; - struct drm_encoder **save_encoders, *new_encoder; - bool save_enabled; - bool changed = false; - bool flip_or_move = false; - struct drm_connector *connector; - int count = 0, ro, fail = 0; - struct drm_crtc_helper_funcs *crtc_funcs; - int ret = 0; - - DRM_DEBUG("\n"); - - if (!set) - return -EINVAL; - - if (!set->crtc) - return -EINVAL; - - if (!set->crtc->helper_private) - return -EINVAL; - - crtc_funcs = set->crtc->helper_private; - - DRM_DEBUG("crtc: %p %d fb: %p connectors: %p num_connectors: %i (x, y) (%i, %i)\n", set->crtc, set->crtc->base.id, set->fb, set->connectors, set->num_connectors, set->x, set->y); - - dev = set->crtc->dev; - - /* save previous config */ - save_enabled = set->crtc->enabled; - - /* this is meant to be num_connector not num_crtc */ - save_crtcs = kzalloc(dev->mode_config.num_connector * sizeof(struct drm_crtc *), GFP_KERNEL); - if (!save_crtcs) - return -ENOMEM; - - save_encoders = kzalloc(dev->mode_config.num_connector * sizeof(struct drm_encoders *), GFP_KERNEL); - if (!save_encoders) { - kfree(save_crtcs); - return -ENOMEM; - } - - /* We should be able to check here if the fb has the same properties - * and then just flip_or_move it */ - if (set->crtc->fb != set->fb) { - /* if we have no fb then its a change not a flip */ - if (set->crtc->fb == NULL) - changed = true; - else - flip_or_move = true; - } - - if (set->x != set->crtc->x || set->y != set->crtc->y) - flip_or_move = true; - - if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { - DRM_DEBUG("modes are different\n"); - drm_mode_debug_printmodeline(&set->crtc->mode); - drm_mode_debug_printmodeline(set->mode); - changed = true; - } - - /* a) traverse passed in connector list and get encoders for them */ - count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; - save_encoders[count++] = connector->encoder; - new_encoder = connector->encoder; - for (ro = 0; ro < set->num_connectors; ro++) { - if (set->connectors[ro] == connector) { - new_encoder = connector_funcs->best_encoder(connector); - /* if we can't get an encoder for a connector - we are setting now - then fail */ - if (new_encoder == NULL) - /* don't break so fail path works correct */ - fail = 1; - break; - } - } - - if (new_encoder != connector->encoder) { - changed = true; - connector->encoder = new_encoder; - } - } - - if (fail) { - ret = -EINVAL; - goto fail_no_encoder; - } - - count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (!connector->encoder) - continue; - - save_crtcs[count++] = connector->encoder->crtc; - - if (connector->encoder->crtc == set->crtc) - new_crtc = NULL; - else - new_crtc = connector->encoder->crtc; - - for (ro = 0; ro < set->num_connectors; ro++) { - if (set->connectors[ro] == connector) - new_crtc = set->crtc; - } - if (new_crtc != connector->encoder->crtc) { - changed = true; - connector->encoder->crtc = new_crtc; - } - } - - /* mode_set_base is not a required function */ - if (flip_or_move && !crtc_funcs->mode_set_base) - changed = true; - - if (changed) { - set->crtc->fb = set->fb; - set->crtc->enabled = (set->mode != NULL); - if (set->mode != NULL) { - DRM_DEBUG("attempting to set mode from userspace\n"); - drm_mode_debug_printmodeline(set->mode); - if (!drm_crtc_helper_set_mode(set->crtc, set->mode, set->x, - set->y)) { - ret = -EINVAL; - goto fail_set_mode; - } - /* TODO are these needed? */ - set->crtc->desired_x = set->x; - set->crtc->desired_y = set->y; - set->crtc->desired_mode = set->mode; - } - drm_helper_disable_unused_functions(dev); - } else if (flip_or_move) { - if (set->crtc->fb != set->fb) - set->crtc->fb = set->fb; - crtc_funcs->mode_set_base(set->crtc, set->x, set->y); - set->crtc->x = set->x; - set->crtc->y = set->y; - } - - kfree(save_encoders); - kfree(save_crtcs); - return 0; - -fail_set_mode: - set->crtc->enabled = save_enabled; - count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) - connector->encoder->crtc = save_crtcs[count++]; -fail_no_encoder: - kfree(save_crtcs); - count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - connector->encoder = save_encoders[count++]; - } - kfree(save_encoders); - return ret; - - -} -EXPORT_SYMBOL(drm_crtc_helper_set_config); - -bool drm_helper_plugged_event(struct drm_device *dev) -{ - DRM_DEBUG("\n"); - - drm_helper_probe_connector_modes(dev, dev->mode_config.max_width, dev->mode_config.max_height); - - drm_setup_crtcs(dev); - - /* alert the driver fb layer */ - dev->mode_config.funcs->fb_changed(dev); - - drm_helper_disable_unused_functions(dev); - - drm_sysfs_hotplug_event(dev); - return true; -} -/** - * drm_initial_config - setup a sane initial connector configuration - * @dev: DRM device - * @can_grow: this configuration is growable - * - * LOCKING: - * Called at init time, must take mode config lock. - * - * Scan the CRTCs and connectors and try to put together an initial setup. - * At the moment, this is a cloned configuration across all heads with - * a new framebuffer object as the backing store. - * - * RETURNS: - * Zero if everything went ok, nonzero otherwise. - */ -bool drm_helper_initial_config(struct drm_device *dev, bool can_grow) -{ - int ret = false; - - drm_helper_plugged_event(dev); - return ret; -} -EXPORT_SYMBOL(drm_helper_initial_config); - -/** - * drm_hotplug_stage_two - * @dev DRM device - * @connector hotpluged connector - * - * LOCKING. - * Caller must hold mode config lock, function might grab struct lock. - * - * Stage two of a hotplug. - * - * RETURNS: - * Zero on success, errno on failure. - */ -int drm_helper_hotplug_stage_two(struct drm_device *dev) -{ - dev->mode_config.hotplug_counter++; - - drm_helper_plugged_event(dev); - - return 0; -} -EXPORT_SYMBOL(drm_helper_hotplug_stage_two); - -int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, - struct drm_mode_fb_cmd *mode_cmd) -{ - fb->width = mode_cmd->width; - fb->height = mode_cmd->height; - fb->pitch = mode_cmd->pitch; - fb->bits_per_pixel = mode_cmd->bpp; - fb->depth = mode_cmd->depth; - - return 0; -} -EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct); - -int drm_helper_resume_force_mode(struct drm_device *dev) -{ - struct drm_crtc *crtc; - int ret; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - - if (!crtc->enabled) - continue; - - ret = drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x, - crtc->y); - - if (ret == false) - DRM_ERROR("failed to set mode on crtc %p\n", crtc); - } - return 0; -} -EXPORT_SYMBOL(drm_helper_resume_force_mode); - -void drm_helper_set_connector_dpms(struct drm_connector *connector, - int dpms_mode) -{ - int i = 0; - struct drm_encoder *encoder; - struct drm_encoder_helper_funcs *encoder_funcs; - struct drm_mode_object *obj; - - for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { - if (connector->encoder_ids[i] == 0) - break; - - obj = drm_mode_object_find(connector->dev, - connector->encoder_ids[i], - DRM_MODE_OBJECT_ENCODER); - if (!obj) - continue; - - encoder = obj_to_encoder(obj); - encoder_funcs = encoder->helper_private; - if (encoder_funcs->dpms) - encoder_funcs->dpms(encoder, dpms_mode); - - } -} -EXPORT_SYMBOL(drm_helper_set_connector_dpms); |