diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_plane.c')
| -rw-r--r-- | drivers/staging/omapdrm/omap_plane.c | 450 |
1 files changed, 0 insertions, 450 deletions
diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c deleted file mode 100644 index bb989d7f026d..000000000000 --- a/drivers/staging/omapdrm/omap_plane.c +++ /dev/null @@ -1,450 +0,0 @@ -/* - * drivers/staging/omapdrm/omap_plane.c - * - * Copyright (C) 2011 Texas Instruments - * Author: Rob Clark <rob.clark@linaro.org> - * - * 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 <linux/kfifo.h> - -#include "omap_drv.h" -#include "omap_dmm_tiler.h" - -/* some hackery because omapdss has an 'enum omap_plane' (which would be - * better named omap_plane_id).. and compiler seems unhappy about having - * both a 'struct omap_plane' and 'enum omap_plane' - */ -#define omap_plane _omap_plane - -/* - * plane funcs - */ - -struct callback { - void (*fxn)(void *); - void *arg; -}; - -#define to_omap_plane(x) container_of(x, struct omap_plane, base) - -struct omap_plane { - struct drm_plane base; - int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */ - const char *name; - struct omap_overlay_info info; - struct omap_drm_apply apply; - - /* position/orientation of scanout within the fb: */ - struct omap_drm_window win; - bool enabled; - - /* last fb that we pinned: */ - struct drm_framebuffer *pinned_fb; - - uint32_t nformats; - uint32_t formats[32]; - - struct omap_drm_irq error_irq; - - /* set of bo's pending unpin until next post_apply() */ - DECLARE_KFIFO_PTR(unpin_fifo, struct drm_gem_object *); - - // XXX maybe get rid of this and handle vblank in crtc too? - struct callback apply_done_cb; -}; - -static void unpin(void *arg, struct drm_gem_object *bo) -{ - struct drm_plane *plane = arg; - struct omap_plane *omap_plane = to_omap_plane(plane); - - if (kfifo_put(&omap_plane->unpin_fifo, - (const struct drm_gem_object **)&bo)) { - /* also hold a ref so it isn't free'd while pinned */ - drm_gem_object_reference(bo); - } else { - dev_err(plane->dev->dev, "unpin fifo full!\n"); - omap_gem_put_paddr(bo); - } -} - -/* update which fb (if any) is pinned for scanout */ -static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb; - - if (pinned_fb != fb) { - int ret; - - DBG("%p -> %p", pinned_fb, fb); - - if (fb) - drm_framebuffer_reference(fb); - - ret = omap_framebuffer_replace(pinned_fb, fb, plane, unpin); - - if (pinned_fb) - drm_framebuffer_unreference(pinned_fb); - - if (ret) { - dev_err(plane->dev->dev, "could not swap %p -> %p\n", - omap_plane->pinned_fb, fb); - if (fb) - drm_framebuffer_unreference(fb); - omap_plane->pinned_fb = NULL; - return ret; - } - - omap_plane->pinned_fb = fb; - } - - return 0; -} - -static void omap_plane_pre_apply(struct omap_drm_apply *apply) -{ - struct omap_plane *omap_plane = - container_of(apply, struct omap_plane, apply); - struct omap_drm_window *win = &omap_plane->win; - struct drm_plane *plane = &omap_plane->base; - struct drm_device *dev = plane->dev; - struct omap_overlay_info *info = &omap_plane->info; - struct drm_crtc *crtc = plane->crtc; - enum omap_channel channel; - bool enabled = omap_plane->enabled && crtc; - bool ilace, replication; - int ret; - - DBG("%s, enabled=%d", omap_plane->name, enabled); - - /* if fb has changed, pin new fb: */ - update_pin(plane, enabled ? plane->fb : NULL); - - if (!enabled) { - dispc_ovl_enable(omap_plane->id, false); - return; - } - - channel = omap_crtc_channel(crtc); - - /* update scanout: */ - omap_framebuffer_update_scanout(plane->fb, win, info); - - DBG("%dx%d -> %dx%d (%d)", info->width, info->height, - info->out_width, info->out_height, - info->screen_width); - DBG("%d,%d %08x %08x", info->pos_x, info->pos_y, - info->paddr, info->p_uv_addr); - - /* TODO: */ - ilace = false; - replication = false; - - /* and finally, update omapdss: */ - ret = dispc_ovl_setup(omap_plane->id, info, - replication, omap_crtc_timings(crtc), false); - if (ret) { - dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret); - return; - } - - dispc_ovl_enable(omap_plane->id, true); - dispc_ovl_set_channel_out(omap_plane->id, channel); -} - -static void omap_plane_post_apply(struct omap_drm_apply *apply) -{ - struct omap_plane *omap_plane = - container_of(apply, struct omap_plane, apply); - struct drm_plane *plane = &omap_plane->base; - struct omap_overlay_info *info = &omap_plane->info; - struct drm_gem_object *bo = NULL; - struct callback cb; - - cb = omap_plane->apply_done_cb; - omap_plane->apply_done_cb.fxn = NULL; - - while (kfifo_get(&omap_plane->unpin_fifo, &bo)) { - omap_gem_put_paddr(bo); - drm_gem_object_unreference_unlocked(bo); - } - - if (cb.fxn) - cb.fxn(cb.arg); - - if (omap_plane->enabled) { - omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y, - info->out_width, info->out_height); - } -} - -static int apply(struct drm_plane *plane) -{ - if (plane->crtc) { - struct omap_plane *omap_plane = to_omap_plane(plane); - return omap_crtc_apply(plane->crtc, &omap_plane->apply); - } - return 0; -} - -int omap_plane_mode_set(struct drm_plane *plane, - struct drm_crtc *crtc, struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - void (*fxn)(void *), void *arg) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_drm_window *win = &omap_plane->win; - - win->crtc_x = crtc_x; - win->crtc_y = crtc_y; - win->crtc_w = crtc_w; - win->crtc_h = crtc_h; - - /* src values are in Q16 fixed point, convert to integer: */ - win->src_x = src_x >> 16; - win->src_y = src_y >> 16; - win->src_w = src_w >> 16; - win->src_h = src_h >> 16; - - if (fxn) { - /* omap_crtc should ensure that a new page flip - * isn't permitted while there is one pending: - */ - BUG_ON(omap_plane->apply_done_cb.fxn); - - omap_plane->apply_done_cb.fxn = fxn; - omap_plane->apply_done_cb.arg = arg; - } - - plane->fb = fb; - plane->crtc = crtc; - - return apply(plane); -} - -static int omap_plane_update(struct drm_plane *plane, - struct drm_crtc *crtc, struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - omap_plane->enabled = true; - return omap_plane_mode_set(plane, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - src_x, src_y, src_w, src_h, - NULL, NULL); -} - -static int omap_plane_disable(struct drm_plane *plane) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - omap_plane->win.rotation = BIT(DRM_ROTATE_0); - return omap_plane_dpms(plane, DRM_MODE_DPMS_OFF); -} - -static void omap_plane_destroy(struct drm_plane *plane) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - - DBG("%s", omap_plane->name); - - omap_irq_unregister(plane->dev, &omap_plane->error_irq); - - omap_plane_disable(plane); - drm_plane_cleanup(plane); - - WARN_ON(!kfifo_is_empty(&omap_plane->unpin_fifo)); - kfifo_free(&omap_plane->unpin_fifo); - - kfree(omap_plane); -} - -int omap_plane_dpms(struct drm_plane *plane, int mode) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - bool enabled = (mode == DRM_MODE_DPMS_ON); - int ret = 0; - - if (enabled != omap_plane->enabled) { - omap_plane->enabled = enabled; - ret = apply(plane); - } - - return ret; -} - -/* helper to install properties which are common to planes and crtcs */ -void omap_plane_install_properties(struct drm_plane *plane, - struct drm_mode_object *obj) -{ - struct drm_device *dev = plane->dev; - struct omap_drm_private *priv = dev->dev_private; - struct drm_property *prop; - - if (priv->has_dmm) { - prop = priv->rotation_prop; - if (!prop) { - const struct drm_prop_enum_list props[] = { - { DRM_ROTATE_0, "rotate-0" }, - { DRM_ROTATE_90, "rotate-90" }, - { DRM_ROTATE_180, "rotate-180" }, - { DRM_ROTATE_270, "rotate-270" }, - { DRM_REFLECT_X, "reflect-x" }, - { DRM_REFLECT_Y, "reflect-y" }, - }; - prop = drm_property_create_bitmask(dev, 0, "rotation", - props, ARRAY_SIZE(props)); - if (prop == NULL) - return; - priv->rotation_prop = prop; - } - drm_object_attach_property(obj, prop, 0); - } - - prop = priv->zorder_prop; - if (!prop) { - prop = drm_property_create_range(dev, 0, "zorder", 0, 3); - if (prop == NULL) - return; - priv->zorder_prop = prop; - } - drm_object_attach_property(obj, prop, 0); -} - -int omap_plane_set_property(struct drm_plane *plane, - struct drm_property *property, uint64_t val) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_drm_private *priv = plane->dev->dev_private; - int ret = -EINVAL; - - if (property == priv->rotation_prop) { - DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val); - omap_plane->win.rotation = val; - ret = apply(plane); - } else if (property == priv->zorder_prop) { - DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val); - omap_plane->info.zorder = val; - ret = apply(plane); - } - - return ret; -} - -static const struct drm_plane_funcs omap_plane_funcs = { - .update_plane = omap_plane_update, - .disable_plane = omap_plane_disable, - .destroy = omap_plane_destroy, - .set_property = omap_plane_set_property, -}; - -static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus) -{ - struct omap_plane *omap_plane = - container_of(irq, struct omap_plane, error_irq); - DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus); -} - -static const char *plane_names[] = { - [OMAP_DSS_GFX] = "gfx", - [OMAP_DSS_VIDEO1] = "vid1", - [OMAP_DSS_VIDEO2] = "vid2", - [OMAP_DSS_VIDEO3] = "vid3", -}; - -static const uint32_t error_irqs[] = { - [OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW, - [OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW, - [OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW, - [OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW, -}; - -/* initialize plane */ -struct drm_plane *omap_plane_init(struct drm_device *dev, - int id, bool private_plane) -{ - struct omap_drm_private *priv = dev->dev_private; - struct drm_plane *plane = NULL; - struct omap_plane *omap_plane; - struct omap_overlay_info *info; - int ret; - - DBG("%s: priv=%d", plane_names[id], private_plane); - - omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL); - if (!omap_plane) { - dev_err(dev->dev, "could not allocate plane\n"); - goto fail; - } - - ret = kfifo_alloc(&omap_plane->unpin_fifo, 16, GFP_KERNEL); - if (ret) { - dev_err(dev->dev, "could not allocate unpin FIFO\n"); - goto fail; - } - - omap_plane->nformats = omap_framebuffer_get_formats( - omap_plane->formats, ARRAY_SIZE(omap_plane->formats), - dss_feat_get_supported_color_modes(id)); - omap_plane->id = id; - omap_plane->name = plane_names[id]; - - plane = &omap_plane->base; - - omap_plane->apply.pre_apply = omap_plane_pre_apply; - omap_plane->apply.post_apply = omap_plane_post_apply; - - omap_plane->error_irq.irqmask = error_irqs[id]; - omap_plane->error_irq.irq = omap_plane_error_irq; - omap_irq_register(dev, &omap_plane->error_irq); - - drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &omap_plane_funcs, - omap_plane->formats, omap_plane->nformats, private_plane); - - omap_plane_install_properties(plane, &plane->base); - - /* get our starting configuration, set defaults for parameters - * we don't currently use, etc: - */ - info = &omap_plane->info; - info->rotation_type = OMAP_DSS_ROT_DMA; - info->rotation = OMAP_DSS_ROT_0; - info->global_alpha = 0xff; - info->mirror = 0; - - /* Set defaults depending on whether we are a CRTC or overlay - * layer. - * TODO add ioctl to give userspace an API to change this.. this - * will come in a subsequent patch. - */ - if (private_plane) - omap_plane->info.zorder = 0; - else - omap_plane->info.zorder = id; - - return plane; - -fail: - if (plane) - omap_plane_destroy(plane); - - return NULL; -} |