![Ville Syrjälä](/assets/img/avatar_default.png)
Done with coccinelle for the most part. However, it thinks '...' is part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder in its place and got rid of it with sed afterwards. I didn't convert drm_crtc_init() since passing the varargs through would mean either cpp macros or va_list, and I figured we don't care about these legacy functions enough to warrant the extra pain. @@ identifier dev, crtc, primary, cursor, funcs; @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, struct drm_plane *primary, struct drm_plane *cursor, const struct drm_crtc_funcs *funcs + ,const char *name, int DOTDOTDOT ) { ... } @@ identifier dev, crtc, primary, cursor, funcs; @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, struct drm_plane *primary, struct drm_plane *cursor, const struct drm_crtc_funcs *funcs + ,const char *name, int DOTDOTDOT ); @@ expression E1, E2, E3, E4, E5; @@ drm_crtc_init_with_planes(E1, E2, E3, E4, E5 + ,NULL ) v2: Split crtc and plane changes apart Pass NULL for no-name instead of "" Leave drm_crtc_init() alone v3: Add ', or NULL...' to @name kernel doc (Jani) Annotate the function with __printf() attribute (Jani) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
541 lines
14 KiB
C
541 lines
14 KiB
C
/*
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* drivers/gpu/drm/omapdrm/omap_crtc.c
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*
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* Copyright (C) 2011 Texas Instruments
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* Author: Rob Clark <rob@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_mode.h>
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#include <drm/drm_plane_helper.h>
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#include "omap_drv.h"
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#define to_omap_crtc(x) container_of(x, struct omap_crtc, base)
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struct omap_crtc {
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struct drm_crtc base;
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const char *name;
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enum omap_channel channel;
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/*
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* Temporary: eventually this will go away, but it is needed
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* for now to keep the output's happy. (They only need
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* mgr->id.) Eventually this will be replaced w/ something
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* more common-panel-framework-y
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*/
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struct omap_overlay_manager *mgr;
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struct omap_video_timings timings;
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struct omap_drm_irq vblank_irq;
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struct omap_drm_irq error_irq;
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bool ignore_digit_sync_lost;
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bool pending;
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wait_queue_head_t pending_wait;
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};
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/* -----------------------------------------------------------------------------
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* Helper Functions
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*/
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uint32_t pipe2vbl(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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return dispc_mgr_get_vsync_irq(omap_crtc->channel);
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}
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struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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return &omap_crtc->timings;
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}
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enum omap_channel omap_crtc_channel(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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return omap_crtc->channel;
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}
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int omap_crtc_wait_pending(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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return wait_event_timeout(omap_crtc->pending_wait,
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!omap_crtc->pending,
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msecs_to_jiffies(50));
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}
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/* -----------------------------------------------------------------------------
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* DSS Manager Functions
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*/
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/*
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* Manager-ops, callbacks from output when they need to configure
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* the upstream part of the video pipe.
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*
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* Most of these we can ignore until we add support for command-mode
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* panels.. for video-mode the crtc-helpers already do an adequate
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* job of sequencing the setup of the video pipe in the proper order
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*/
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/* ovl-mgr-id -> crtc */
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static struct omap_crtc *omap_crtcs[8];
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/* we can probably ignore these until we support command-mode panels: */
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static int omap_crtc_dss_connect(struct omap_overlay_manager *mgr,
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struct omap_dss_device *dst)
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{
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if (mgr->output)
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return -EINVAL;
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if ((mgr->supported_outputs & dst->id) == 0)
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return -EINVAL;
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dst->manager = mgr;
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mgr->output = dst;
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return 0;
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}
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static void omap_crtc_dss_disconnect(struct omap_overlay_manager *mgr,
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struct omap_dss_device *dst)
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{
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mgr->output->manager = NULL;
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mgr->output = NULL;
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}
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static void omap_crtc_dss_start_update(struct omap_overlay_manager *mgr)
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{
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}
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/* Called only from the encoder enable/disable and suspend/resume handlers. */
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static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
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{
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struct drm_device *dev = crtc->dev;
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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enum omap_channel channel = omap_crtc->channel;
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struct omap_irq_wait *wait;
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u32 framedone_irq, vsync_irq;
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int ret;
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if (dispc_mgr_is_enabled(channel) == enable)
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return;
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if (omap_crtc->channel == OMAP_DSS_CHANNEL_DIGIT) {
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/*
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* Digit output produces some sync lost interrupts during the
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* first frame when enabling, so we need to ignore those.
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*/
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omap_crtc->ignore_digit_sync_lost = true;
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}
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framedone_irq = dispc_mgr_get_framedone_irq(channel);
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vsync_irq = dispc_mgr_get_vsync_irq(channel);
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if (enable) {
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wait = omap_irq_wait_init(dev, vsync_irq, 1);
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} else {
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/*
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* When we disable the digit output, we need to wait for
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* FRAMEDONE to know that DISPC has finished with the output.
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*
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* OMAP2/3 does not have FRAMEDONE irq for digit output, and in
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* that case we need to use vsync interrupt, and wait for both
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* even and odd frames.
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*/
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if (framedone_irq)
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wait = omap_irq_wait_init(dev, framedone_irq, 1);
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else
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wait = omap_irq_wait_init(dev, vsync_irq, 2);
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}
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dispc_mgr_enable(channel, enable);
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ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100));
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if (ret) {
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dev_err(dev->dev, "%s: timeout waiting for %s\n",
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omap_crtc->name, enable ? "enable" : "disable");
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}
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if (omap_crtc->channel == OMAP_DSS_CHANNEL_DIGIT) {
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omap_crtc->ignore_digit_sync_lost = false;
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/* make sure the irq handler sees the value above */
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mb();
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}
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}
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static int omap_crtc_dss_enable(struct omap_overlay_manager *mgr)
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{
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struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
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struct omap_overlay_manager_info info;
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memset(&info, 0, sizeof(info));
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info.default_color = 0x00000000;
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info.trans_key = 0x00000000;
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info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
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info.trans_enabled = false;
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dispc_mgr_setup(omap_crtc->channel, &info);
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dispc_mgr_set_timings(omap_crtc->channel,
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&omap_crtc->timings);
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omap_crtc_set_enabled(&omap_crtc->base, true);
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return 0;
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}
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static void omap_crtc_dss_disable(struct omap_overlay_manager *mgr)
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{
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struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
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omap_crtc_set_enabled(&omap_crtc->base, false);
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}
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static void omap_crtc_dss_set_timings(struct omap_overlay_manager *mgr,
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const struct omap_video_timings *timings)
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{
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struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
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DBG("%s", omap_crtc->name);
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omap_crtc->timings = *timings;
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}
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static void omap_crtc_dss_set_lcd_config(struct omap_overlay_manager *mgr,
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const struct dss_lcd_mgr_config *config)
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{
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struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
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DBG("%s", omap_crtc->name);
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dispc_mgr_set_lcd_config(omap_crtc->channel, config);
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}
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static int omap_crtc_dss_register_framedone(
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struct omap_overlay_manager *mgr,
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void (*handler)(void *), void *data)
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{
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return 0;
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}
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static void omap_crtc_dss_unregister_framedone(
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struct omap_overlay_manager *mgr,
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void (*handler)(void *), void *data)
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{
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}
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static const struct dss_mgr_ops mgr_ops = {
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.connect = omap_crtc_dss_connect,
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.disconnect = omap_crtc_dss_disconnect,
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.start_update = omap_crtc_dss_start_update,
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.enable = omap_crtc_dss_enable,
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.disable = omap_crtc_dss_disable,
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.set_timings = omap_crtc_dss_set_timings,
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.set_lcd_config = omap_crtc_dss_set_lcd_config,
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.register_framedone_handler = omap_crtc_dss_register_framedone,
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.unregister_framedone_handler = omap_crtc_dss_unregister_framedone,
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};
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/* -----------------------------------------------------------------------------
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* Setup, Flush and Page Flip
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*/
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static void omap_crtc_complete_page_flip(struct drm_crtc *crtc)
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{
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struct drm_pending_vblank_event *event;
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struct drm_device *dev = crtc->dev;
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unsigned long flags;
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event = crtc->state->event;
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if (!event)
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return;
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spin_lock_irqsave(&dev->event_lock, flags);
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list_del(&event->base.link);
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/*
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* Queue the event for delivery if it's still linked to a file
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* handle, otherwise just destroy it.
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*/
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if (event->base.file_priv)
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drm_crtc_send_vblank_event(crtc, event);
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else
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event->base.destroy(&event->base);
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spin_unlock_irqrestore(&dev->event_lock, flags);
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}
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static void omap_crtc_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
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{
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struct omap_crtc *omap_crtc =
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container_of(irq, struct omap_crtc, error_irq);
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if (omap_crtc->ignore_digit_sync_lost) {
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irqstatus &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
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if (!irqstatus)
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return;
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}
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DRM_ERROR_RATELIMITED("%s: errors: %08x\n", omap_crtc->name, irqstatus);
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}
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static void omap_crtc_vblank_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
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{
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struct omap_crtc *omap_crtc =
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container_of(irq, struct omap_crtc, vblank_irq);
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struct drm_device *dev = omap_crtc->base.dev;
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if (dispc_mgr_go_busy(omap_crtc->channel))
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return;
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DBG("%s: apply done", omap_crtc->name);
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__omap_irq_unregister(dev, &omap_crtc->vblank_irq);
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rmb();
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WARN_ON(!omap_crtc->pending);
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omap_crtc->pending = false;
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wmb();
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/* wake up userspace */
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omap_crtc_complete_page_flip(&omap_crtc->base);
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/* wake up omap_atomic_complete */
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wake_up(&omap_crtc->pending_wait);
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}
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/* -----------------------------------------------------------------------------
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* CRTC Functions
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*/
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static void omap_crtc_destroy(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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DBG("%s", omap_crtc->name);
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WARN_ON(omap_crtc->vblank_irq.registered);
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omap_irq_unregister(crtc->dev, &omap_crtc->error_irq);
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drm_crtc_cleanup(crtc);
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kfree(omap_crtc);
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}
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static bool omap_crtc_mode_fixup(struct drm_crtc *crtc,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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return true;
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}
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static void omap_crtc_enable(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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DBG("%s", omap_crtc->name);
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rmb();
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WARN_ON(omap_crtc->pending);
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omap_crtc->pending = true;
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wmb();
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omap_irq_register(crtc->dev, &omap_crtc->vblank_irq);
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drm_crtc_vblank_on(crtc);
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}
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static void omap_crtc_disable(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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DBG("%s", omap_crtc->name);
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drm_crtc_vblank_off(crtc);
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}
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static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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struct drm_display_mode *mode = &crtc->state->adjusted_mode;
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DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
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omap_crtc->name, mode->base.id, mode->name,
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mode->vrefresh, mode->clock,
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mode->hdisplay, mode->hsync_start, mode->hsync_end, mode->htotal,
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mode->vdisplay, mode->vsync_start, mode->vsync_end, mode->vtotal,
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mode->type, mode->flags);
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copy_timings_drm_to_omap(&omap_crtc->timings, mode);
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}
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static void omap_crtc_atomic_begin(struct drm_crtc *crtc,
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struct drm_crtc_state *old_crtc_state)
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{
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}
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static void omap_crtc_atomic_flush(struct drm_crtc *crtc,
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struct drm_crtc_state *old_crtc_state)
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{
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struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
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WARN_ON(omap_crtc->vblank_irq.registered);
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if (dispc_mgr_is_enabled(omap_crtc->channel)) {
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DBG("%s: GO", omap_crtc->name);
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rmb();
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WARN_ON(omap_crtc->pending);
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omap_crtc->pending = true;
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wmb();
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dispc_mgr_go(omap_crtc->channel);
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omap_irq_register(crtc->dev, &omap_crtc->vblank_irq);
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}
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}
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static int omap_crtc_atomic_set_property(struct drm_crtc *crtc,
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struct drm_crtc_state *state,
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struct drm_property *property,
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uint64_t val)
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{
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struct drm_plane_state *plane_state;
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struct drm_plane *plane = crtc->primary;
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/*
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* Delegate property set to the primary plane. Get the plane state and
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* set the property directly.
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*/
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plane_state = drm_atomic_get_plane_state(state->state, plane);
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if (!plane_state)
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return -EINVAL;
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return drm_atomic_plane_set_property(plane, plane_state, property, val);
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}
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static int omap_crtc_atomic_get_property(struct drm_crtc *crtc,
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const struct drm_crtc_state *state,
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struct drm_property *property,
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uint64_t *val)
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{
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/*
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* Delegate property get to the primary plane. The
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* drm_atomic_plane_get_property() function isn't exported, but can be
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* called through drm_object_property_get_value() as that will call
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* drm_atomic_get_property() for atomic drivers.
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*/
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return drm_object_property_get_value(&crtc->primary->base, property,
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val);
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}
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static const struct drm_crtc_funcs omap_crtc_funcs = {
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.reset = drm_atomic_helper_crtc_reset,
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.set_config = drm_atomic_helper_set_config,
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.destroy = omap_crtc_destroy,
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.page_flip = drm_atomic_helper_page_flip,
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.set_property = drm_atomic_helper_crtc_set_property,
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.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
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.atomic_set_property = omap_crtc_atomic_set_property,
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.atomic_get_property = omap_crtc_atomic_get_property,
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};
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static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = {
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.mode_fixup = omap_crtc_mode_fixup,
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.mode_set_nofb = omap_crtc_mode_set_nofb,
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.disable = omap_crtc_disable,
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|
.enable = omap_crtc_enable,
|
|
.atomic_begin = omap_crtc_atomic_begin,
|
|
.atomic_flush = omap_crtc_atomic_flush,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Init and Cleanup
|
|
*/
|
|
|
|
static const char *channel_names[] = {
|
|
[OMAP_DSS_CHANNEL_LCD] = "lcd",
|
|
[OMAP_DSS_CHANNEL_DIGIT] = "tv",
|
|
[OMAP_DSS_CHANNEL_LCD2] = "lcd2",
|
|
[OMAP_DSS_CHANNEL_LCD3] = "lcd3",
|
|
};
|
|
|
|
void omap_crtc_pre_init(void)
|
|
{
|
|
dss_install_mgr_ops(&mgr_ops);
|
|
}
|
|
|
|
void omap_crtc_pre_uninit(void)
|
|
{
|
|
dss_uninstall_mgr_ops();
|
|
}
|
|
|
|
/* initialize crtc */
|
|
struct drm_crtc *omap_crtc_init(struct drm_device *dev,
|
|
struct drm_plane *plane, enum omap_channel channel, int id)
|
|
{
|
|
struct drm_crtc *crtc = NULL;
|
|
struct omap_crtc *omap_crtc;
|
|
int ret;
|
|
|
|
DBG("%s", channel_names[channel]);
|
|
|
|
omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL);
|
|
if (!omap_crtc)
|
|
return NULL;
|
|
|
|
crtc = &omap_crtc->base;
|
|
|
|
init_waitqueue_head(&omap_crtc->pending_wait);
|
|
|
|
omap_crtc->channel = channel;
|
|
omap_crtc->name = channel_names[channel];
|
|
|
|
omap_crtc->vblank_irq.irqmask = pipe2vbl(crtc);
|
|
omap_crtc->vblank_irq.irq = omap_crtc_vblank_irq;
|
|
|
|
omap_crtc->error_irq.irqmask =
|
|
dispc_mgr_get_sync_lost_irq(channel);
|
|
omap_crtc->error_irq.irq = omap_crtc_error_irq;
|
|
omap_irq_register(dev, &omap_crtc->error_irq);
|
|
|
|
/* temporary: */
|
|
omap_crtc->mgr = omap_dss_get_overlay_manager(channel);
|
|
|
|
ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
|
|
&omap_crtc_funcs, NULL);
|
|
if (ret < 0) {
|
|
kfree(omap_crtc);
|
|
return NULL;
|
|
}
|
|
|
|
drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs);
|
|
|
|
omap_plane_install_properties(crtc->primary, &crtc->base);
|
|
|
|
omap_crtcs[channel] = omap_crtc;
|
|
|
|
return crtc;
|
|
}
|