diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_connector.c')
| -rw-r--r-- | drivers/staging/omapdrm/omap_connector.c | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c deleted file mode 100644 index 91edb3f96972..000000000000 --- a/drivers/staging/omapdrm/omap_connector.c +++ /dev/null @@ -1,389 +0,0 @@ -/* - * drivers/staging/omapdrm/omap_connector.c - * - * Copyright (C) 2011 Texas Instruments - * Author: Rob Clark <rob@ti.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "omap_drv.h" - -#include "drm_crtc.h" -#include "drm_crtc_helper.h" - -/* - * connector funcs - */ - -#define to_omap_connector(x) container_of(x, struct omap_connector, base) - -struct omap_connector { - struct drm_connector base; - struct omap_dss_device *dssdev; -}; - -static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, - struct omap_video_timings *timings) -{ - mode->clock = timings->pixel_clock; - - mode->hdisplay = timings->x_res; - mode->hsync_start = mode->hdisplay + timings->hfp; - mode->hsync_end = mode->hsync_start + timings->hsw; - mode->htotal = mode->hsync_end + timings->hbp; - - mode->vdisplay = timings->y_res; - mode->vsync_start = mode->vdisplay + timings->vfp; - mode->vsync_end = mode->vsync_start + timings->vsw; - mode->vtotal = mode->vsync_end + timings->vbp; - - mode->flags = 0; - - if (timings->interlace) - mode->flags |= DRM_MODE_FLAG_INTERLACE; - - if (timings->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH) - mode->flags |= DRM_MODE_FLAG_PHSYNC; - else - mode->flags |= DRM_MODE_FLAG_NHSYNC; - - if (timings->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH) - mode->flags |= DRM_MODE_FLAG_PVSYNC; - else - mode->flags |= DRM_MODE_FLAG_NVSYNC; -} - -static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, - struct drm_display_mode *mode) -{ - timings->pixel_clock = mode->clock; - - timings->x_res = mode->hdisplay; - timings->hfp = mode->hsync_start - mode->hdisplay; - timings->hsw = mode->hsync_end - mode->hsync_start; - timings->hbp = mode->htotal - mode->hsync_end; - - timings->y_res = mode->vdisplay; - timings->vfp = mode->vsync_start - mode->vdisplay; - timings->vsw = mode->vsync_end - mode->vsync_start; - timings->vbp = mode->vtotal - mode->vsync_end; - - timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); - - if (mode->flags & DRM_MODE_FLAG_PHSYNC) - timings->hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; - else - timings->hsync_level = OMAPDSS_SIG_ACTIVE_LOW; - - if (mode->flags & DRM_MODE_FLAG_PVSYNC) - timings->vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; - else - timings->vsync_level = OMAPDSS_SIG_ACTIVE_LOW; - - timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; - timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH; - timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; -} - -static void omap_connector_dpms(struct drm_connector *connector, int mode) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - int old_dpms; - - DBG("%s: %d", dssdev->name, mode); - - old_dpms = connector->dpms; - - /* from off to on, do from crtc to connector */ - if (mode < old_dpms) - drm_helper_connector_dpms(connector, mode); - - if (mode == DRM_MODE_DPMS_ON) { - /* store resume info for suspended displays */ - switch (dssdev->state) { - case OMAP_DSS_DISPLAY_SUSPENDED: - dssdev->activate_after_resume = true; - break; - case OMAP_DSS_DISPLAY_DISABLED: { - int ret = dssdev->driver->enable(dssdev); - if (ret) { - DBG("%s: failed to enable: %d", - dssdev->name, ret); - dssdev->driver->disable(dssdev); - } - break; - } - default: - break; - } - } else { - /* TODO */ - } - - /* from on to off, do from connector to crtc */ - if (mode > old_dpms) - drm_helper_connector_dpms(connector, mode); -} - -enum drm_connector_status omap_connector_detect( - struct drm_connector *connector, bool force) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - struct omap_dss_driver *dssdrv = dssdev->driver; - enum drm_connector_status ret; - - if (dssdrv->detect) { - if (dssdrv->detect(dssdev)) - ret = connector_status_connected; - else - ret = connector_status_disconnected; - } else { - ret = connector_status_unknown; - } - - VERB("%s: %d (force=%d)", omap_connector->dssdev->name, ret, force); - - return ret; -} - -static void omap_connector_destroy(struct drm_connector *connector) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - - dssdev->driver->disable(dssdev); - - DBG("%s", omap_connector->dssdev->name); - drm_sysfs_connector_remove(connector); - drm_connector_cleanup(connector); - kfree(omap_connector); - - omap_dss_put_device(dssdev); -} - -#define MAX_EDID 512 - -static int omap_connector_get_modes(struct drm_connector *connector) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - struct omap_dss_driver *dssdrv = dssdev->driver; - struct drm_device *dev = connector->dev; - int n = 0; - - DBG("%s", omap_connector->dssdev->name); - - /* if display exposes EDID, then we parse that in the normal way to - * build table of supported modes.. otherwise (ie. fixed resolution - * LCD panels) we just return a single mode corresponding to the - * currently configured timings: - */ - if (dssdrv->read_edid) { - void *edid = kzalloc(MAX_EDID, GFP_KERNEL); - - if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) && - drm_edid_is_valid(edid)) { - drm_mode_connector_update_edid_property( - connector, edid); - n = drm_add_edid_modes(connector, edid); - } else { - drm_mode_connector_update_edid_property( - connector, NULL); - } - kfree(edid); - } else { - struct drm_display_mode *mode = drm_mode_create(dev); - struct omap_video_timings timings = {0}; - - dssdrv->get_timings(dssdev, &timings); - - copy_timings_omap_to_drm(mode, &timings); - - mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; - drm_mode_set_name(mode); - drm_mode_probed_add(connector, mode); - - n = 1; - } - - return n; -} - -static int omap_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings = {0}; - struct drm_device *dev = connector->dev; - struct drm_display_mode *new_mode; - int ret = MODE_BAD; - - copy_timings_drm_to_omap(&timings, mode); - mode->vrefresh = drm_mode_vrefresh(mode); - - if (!dssdrv->check_timings(dssdev, &timings)) { - /* check if vrefresh is still valid */ - new_mode = drm_mode_duplicate(dev, mode); - new_mode->clock = timings.pixel_clock; - new_mode->vrefresh = 0; - if (mode->vrefresh == drm_mode_vrefresh(new_mode)) - ret = MODE_OK; - drm_mode_destroy(dev, new_mode); - } - - DBG("connector: mode %s: " - "%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", - (ret == MODE_OK) ? "valid" : "invalid", - mode->base.id, mode->name, mode->vrefresh, mode->clock, - mode->hdisplay, mode->hsync_start, - mode->hsync_end, mode->htotal, - mode->vdisplay, mode->vsync_start, - mode->vsync_end, mode->vtotal, mode->type, mode->flags); - - return ret; -} - -struct drm_encoder *omap_connector_attached_encoder( - struct drm_connector *connector) -{ - int i; - struct omap_connector *omap_connector = to_omap_connector(connector); - - for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { - struct drm_mode_object *obj; - - if (connector->encoder_ids[i] == 0) - break; - - obj = drm_mode_object_find(connector->dev, - connector->encoder_ids[i], - DRM_MODE_OBJECT_ENCODER); - - if (obj) { - struct drm_encoder *encoder = obj_to_encoder(obj); - struct omap_overlay_manager *mgr = - omap_encoder_get_manager(encoder); - DBG("%s: found %s", omap_connector->dssdev->name, - mgr->name); - return encoder; - } - } - - DBG("%s: no encoder", omap_connector->dssdev->name); - - return NULL; -} - -static const struct drm_connector_funcs omap_connector_funcs = { - .dpms = omap_connector_dpms, - .detect = omap_connector_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = omap_connector_destroy, -}; - -static const struct drm_connector_helper_funcs omap_connector_helper_funcs = { - .get_modes = omap_connector_get_modes, - .mode_valid = omap_connector_mode_valid, - .best_encoder = omap_connector_attached_encoder, -}; - -/* called from encoder when mode is set, to propagate settings to the dssdev */ -void omap_connector_mode_set(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct drm_device *dev = connector->dev; - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings = {0}; - - copy_timings_drm_to_omap(&timings, mode); - - DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", - omap_connector->dssdev->name, - mode->base.id, mode->name, mode->vrefresh, mode->clock, - mode->hdisplay, mode->hsync_start, - mode->hsync_end, mode->htotal, - mode->vdisplay, mode->vsync_start, - mode->vsync_end, mode->vtotal, mode->type, mode->flags); - - if (dssdrv->check_timings(dssdev, &timings)) { - dev_err(dev->dev, "could not set timings\n"); - return; - } - - dssdrv->set_timings(dssdev, &timings); -} - -/* flush an area of the framebuffer (in case of manual update display that - * is not automatically flushed) - */ -void omap_connector_flush(struct drm_connector *connector, - int x, int y, int w, int h) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - - /* TODO: enable when supported in dss */ - VERB("%s: %d,%d, %dx%d", omap_connector->dssdev->name, x, y, w, h); -} - -/* initialize connector */ -struct drm_connector *omap_connector_init(struct drm_device *dev, - int connector_type, struct omap_dss_device *dssdev) -{ - struct drm_connector *connector = NULL; - struct omap_connector *omap_connector; - - DBG("%s", dssdev->name); - - omap_dss_get_device(dssdev); - - omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL); - if (!omap_connector) { - dev_err(dev->dev, "could not allocate connector\n"); - goto fail; - } - - omap_connector->dssdev = dssdev; - connector = &omap_connector->base; - - drm_connector_init(dev, connector, &omap_connector_funcs, - connector_type); - drm_connector_helper_add(connector, &omap_connector_helper_funcs); - -#if 0 /* enable when dss2 supports hotplug */ - if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD) - connector->polled = 0; - else -#endif - connector->polled = DRM_CONNECTOR_POLL_CONNECT | - DRM_CONNECTOR_POLL_DISCONNECT; - - connector->interlace_allowed = 1; - connector->doublescan_allowed = 0; - - drm_sysfs_connector_add(connector); - - return connector; - -fail: - if (connector) - omap_connector_destroy(connector); - - return NULL; -} |