369 lines
9.2 KiB
C
369 lines
9.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Copyright (C) STMicroelectronics SA 2014
|
||
|
|
* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
|
||
|
|
* Fabien Dessenne <fabien.dessenne@st.com>
|
||
|
|
* for STMicroelectronics.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/clk.h>
|
||
|
|
|
||
|
|
#include <drm/drm_atomic.h>
|
||
|
|
#include <drm/drm_atomic_helper.h>
|
||
|
|
#include <drm/drm_device.h>
|
||
|
|
#include <drm/drm_print.h>
|
||
|
|
#include <drm/drm_probe_helper.h>
|
||
|
|
#include <drm/drm_vblank.h>
|
||
|
|
|
||
|
|
#include "sti_compositor.h"
|
||
|
|
#include "sti_crtc.h"
|
||
|
|
#include "sti_drv.h"
|
||
|
|
#include "sti_vid.h"
|
||
|
|
#include "sti_vtg.h"
|
||
|
|
|
||
|
|
static void sti_crtc_atomic_enable(struct drm_crtc *crtc,
|
||
|
|
struct drm_atomic_state *state)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("\n");
|
||
|
|
|
||
|
|
mixer->status = STI_MIXER_READY;
|
||
|
|
|
||
|
|
drm_crtc_vblank_on(crtc);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sti_crtc_atomic_disable(struct drm_crtc *crtc,
|
||
|
|
struct drm_atomic_state *state)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("\n");
|
||
|
|
|
||
|
|
mixer->status = STI_MIXER_DISABLING;
|
||
|
|
|
||
|
|
drm_crtc_wait_one_vblank(crtc);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
sti_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
struct device *dev = mixer->dev;
|
||
|
|
struct sti_compositor *compo = dev_get_drvdata(dev);
|
||
|
|
struct clk *compo_clk, *pix_clk;
|
||
|
|
int rate = mode->clock * 1000;
|
||
|
|
|
||
|
|
DRM_DEBUG_KMS("CRTC:%d (%s) mode: (%s)\n",
|
||
|
|
crtc->base.id, sti_mixer_to_str(mixer), mode->name);
|
||
|
|
|
||
|
|
DRM_DEBUG_KMS(DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
|
||
|
|
|
||
|
|
if (mixer->id == STI_MIXER_MAIN) {
|
||
|
|
compo_clk = compo->clk_compo_main;
|
||
|
|
pix_clk = compo->clk_pix_main;
|
||
|
|
} else {
|
||
|
|
compo_clk = compo->clk_compo_aux;
|
||
|
|
pix_clk = compo->clk_pix_aux;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Prepare and enable the compo IP clock */
|
||
|
|
if (clk_prepare_enable(compo_clk)) {
|
||
|
|
DRM_INFO("Failed to prepare/enable compositor clk\n");
|
||
|
|
goto compo_error;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set rate and prepare/enable pixel clock */
|
||
|
|
if (clk_set_rate(pix_clk, rate) < 0) {
|
||
|
|
DRM_ERROR("Cannot set rate (%dHz) for pix clk\n", rate);
|
||
|
|
goto pix_error;
|
||
|
|
}
|
||
|
|
if (clk_prepare_enable(pix_clk)) {
|
||
|
|
DRM_ERROR("Failed to prepare/enable pix clk\n");
|
||
|
|
goto pix_error;
|
||
|
|
}
|
||
|
|
|
||
|
|
sti_vtg_set_config(compo->vtg[mixer->id], &crtc->mode);
|
||
|
|
|
||
|
|
if (sti_mixer_active_video_area(mixer, &crtc->mode)) {
|
||
|
|
DRM_ERROR("Can't set active video area\n");
|
||
|
|
goto mixer_error;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
mixer_error:
|
||
|
|
clk_disable_unprepare(pix_clk);
|
||
|
|
pix_error:
|
||
|
|
clk_disable_unprepare(compo_clk);
|
||
|
|
compo_error:
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sti_crtc_disable(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
struct device *dev = mixer->dev;
|
||
|
|
struct sti_compositor *compo = dev_get_drvdata(dev);
|
||
|
|
|
||
|
|
DRM_DEBUG_KMS("CRTC:%d (%s)\n", crtc->base.id, sti_mixer_to_str(mixer));
|
||
|
|
|
||
|
|
/* Disable Background */
|
||
|
|
sti_mixer_set_background_status(mixer, false);
|
||
|
|
|
||
|
|
drm_crtc_vblank_off(crtc);
|
||
|
|
|
||
|
|
/* Disable pixel clock and compo IP clocks */
|
||
|
|
if (mixer->id == STI_MIXER_MAIN) {
|
||
|
|
clk_disable_unprepare(compo->clk_pix_main);
|
||
|
|
clk_disable_unprepare(compo->clk_compo_main);
|
||
|
|
} else {
|
||
|
|
clk_disable_unprepare(compo->clk_pix_aux);
|
||
|
|
clk_disable_unprepare(compo->clk_compo_aux);
|
||
|
|
}
|
||
|
|
|
||
|
|
mixer->status = STI_MIXER_DISABLED;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
sti_crtc_mode_set_nofb(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
sti_crtc_mode_set(crtc, &crtc->state->adjusted_mode);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
|
||
|
|
struct drm_atomic_state *state)
|
||
|
|
{
|
||
|
|
struct drm_device *drm_dev = crtc->dev;
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
|
||
|
|
struct drm_plane *p;
|
||
|
|
struct drm_pending_vblank_event *event;
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("\n");
|
||
|
|
|
||
|
|
/* perform plane actions */
|
||
|
|
list_for_each_entry(p, &drm_dev->mode_config.plane_list, head) {
|
||
|
|
struct sti_plane *plane = to_sti_plane(p);
|
||
|
|
|
||
|
|
switch (plane->status) {
|
||
|
|
case STI_PLANE_UPDATED:
|
||
|
|
/* ignore update for other CRTC */
|
||
|
|
if (p->state->crtc != crtc)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/* update planes tag as updated */
|
||
|
|
DRM_DEBUG_DRIVER("update plane %s\n",
|
||
|
|
sti_plane_to_str(plane));
|
||
|
|
|
||
|
|
if (sti_mixer_set_plane_depth(mixer, plane)) {
|
||
|
|
DRM_ERROR("Cannot set plane %s depth\n",
|
||
|
|
sti_plane_to_str(plane));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (sti_mixer_set_plane_status(mixer, plane, true)) {
|
||
|
|
DRM_ERROR("Cannot enable plane %s at mixer\n",
|
||
|
|
sti_plane_to_str(plane));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* if plane is HQVDP_0 then commit the vid[0] */
|
||
|
|
if (plane->desc == STI_HQVDP_0)
|
||
|
|
sti_vid_commit(compo->vid[0], p->state);
|
||
|
|
|
||
|
|
plane->status = STI_PLANE_READY;
|
||
|
|
|
||
|
|
break;
|
||
|
|
case STI_PLANE_DISABLING:
|
||
|
|
/* disabling sequence for planes tag as disabling */
|
||
|
|
DRM_DEBUG_DRIVER("disable plane %s from mixer\n",
|
||
|
|
sti_plane_to_str(plane));
|
||
|
|
|
||
|
|
if (sti_mixer_set_plane_status(mixer, plane, false)) {
|
||
|
|
DRM_ERROR("Cannot disable plane %s at mixer\n",
|
||
|
|
sti_plane_to_str(plane));
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (plane->desc == STI_CURSOR)
|
||
|
|
/* tag plane status for disabled */
|
||
|
|
plane->status = STI_PLANE_DISABLED;
|
||
|
|
else
|
||
|
|
/* tag plane status for flushing */
|
||
|
|
plane->status = STI_PLANE_FLUSHING;
|
||
|
|
|
||
|
|
/* if plane is HQVDP_0 then disable the vid[0] */
|
||
|
|
if (plane->desc == STI_HQVDP_0)
|
||
|
|
sti_vid_disable(compo->vid[0]);
|
||
|
|
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
/* Other status case are not handled */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
event = crtc->state->event;
|
||
|
|
if (event) {
|
||
|
|
crtc->state->event = NULL;
|
||
|
|
|
||
|
|
spin_lock_irqsave(&crtc->dev->event_lock, flags);
|
||
|
|
if (drm_crtc_vblank_get(crtc) == 0)
|
||
|
|
drm_crtc_arm_vblank_event(crtc, event);
|
||
|
|
else
|
||
|
|
drm_crtc_send_vblank_event(crtc, event);
|
||
|
|
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct drm_crtc_helper_funcs sti_crtc_helper_funcs = {
|
||
|
|
.mode_set_nofb = sti_crtc_mode_set_nofb,
|
||
|
|
.atomic_flush = sti_crtc_atomic_flush,
|
||
|
|
.atomic_enable = sti_crtc_atomic_enable,
|
||
|
|
.atomic_disable = sti_crtc_atomic_disable,
|
||
|
|
};
|
||
|
|
|
||
|
|
static void sti_crtc_destroy(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
DRM_DEBUG_KMS("\n");
|
||
|
|
drm_crtc_cleanup(crtc);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sti_crtc_set_property(struct drm_crtc *crtc,
|
||
|
|
struct drm_property *property,
|
||
|
|
uint64_t val)
|
||
|
|
{
|
||
|
|
DRM_DEBUG_KMS("\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int sti_crtc_vblank_cb(struct notifier_block *nb,
|
||
|
|
unsigned long event, void *data)
|
||
|
|
{
|
||
|
|
struct sti_compositor *compo;
|
||
|
|
struct drm_crtc *crtc = data;
|
||
|
|
struct sti_mixer *mixer;
|
||
|
|
unsigned int pipe;
|
||
|
|
|
||
|
|
pipe = drm_crtc_index(crtc);
|
||
|
|
compo = container_of(nb, struct sti_compositor, vtg_vblank_nb[pipe]);
|
||
|
|
mixer = compo->mixer[pipe];
|
||
|
|
|
||
|
|
if ((event != VTG_TOP_FIELD_EVENT) &&
|
||
|
|
(event != VTG_BOTTOM_FIELD_EVENT)) {
|
||
|
|
DRM_ERROR("unknown event: %lu\n", event);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
drm_crtc_handle_vblank(crtc);
|
||
|
|
|
||
|
|
if (mixer->status == STI_MIXER_DISABLING) {
|
||
|
|
struct drm_plane *p;
|
||
|
|
|
||
|
|
/* Disable mixer only if all overlay planes (GDP and VDP)
|
||
|
|
* are disabled */
|
||
|
|
list_for_each_entry(p, &crtc->dev->mode_config.plane_list,
|
||
|
|
head) {
|
||
|
|
struct sti_plane *plane = to_sti_plane(p);
|
||
|
|
|
||
|
|
if ((plane->desc & STI_PLANE_TYPE_MASK) <= STI_VDP)
|
||
|
|
if (plane->status != STI_PLANE_DISABLED)
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
sti_crtc_disable(crtc);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sti_crtc_enable_vblank(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = crtc->dev;
|
||
|
|
unsigned int pipe = crtc->index;
|
||
|
|
struct sti_private *dev_priv = dev->dev_private;
|
||
|
|
struct sti_compositor *compo = dev_priv->compo;
|
||
|
|
struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
|
||
|
|
struct sti_vtg *vtg = compo->vtg[pipe];
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("\n");
|
||
|
|
|
||
|
|
if (sti_vtg_register_client(vtg, vtg_vblank_nb, crtc)) {
|
||
|
|
DRM_ERROR("Cannot register VTG notifier\n");
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void sti_crtc_disable_vblank(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
struct drm_device *drm_dev = crtc->dev;
|
||
|
|
unsigned int pipe = crtc->index;
|
||
|
|
struct sti_private *priv = drm_dev->dev_private;
|
||
|
|
struct sti_compositor *compo = priv->compo;
|
||
|
|
struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
|
||
|
|
struct sti_vtg *vtg = compo->vtg[pipe];
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("\n");
|
||
|
|
|
||
|
|
if (sti_vtg_unregister_client(vtg, vtg_vblank_nb))
|
||
|
|
DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sti_crtc_late_register(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
|
||
|
|
|
||
|
|
if (drm_crtc_index(crtc) == 0)
|
||
|
|
sti_compositor_debugfs_init(compo, crtc->dev->primary);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct drm_crtc_funcs sti_crtc_funcs = {
|
||
|
|
.set_config = drm_atomic_helper_set_config,
|
||
|
|
.page_flip = drm_atomic_helper_page_flip,
|
||
|
|
.destroy = sti_crtc_destroy,
|
||
|
|
.set_property = sti_crtc_set_property,
|
||
|
|
.reset = drm_atomic_helper_crtc_reset,
|
||
|
|
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
|
||
|
|
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
|
||
|
|
.late_register = sti_crtc_late_register,
|
||
|
|
.enable_vblank = sti_crtc_enable_vblank,
|
||
|
|
.disable_vblank = sti_crtc_disable_vblank,
|
||
|
|
};
|
||
|
|
|
||
|
|
bool sti_crtc_is_main(struct drm_crtc *crtc)
|
||
|
|
{
|
||
|
|
struct sti_mixer *mixer = to_sti_mixer(crtc);
|
||
|
|
|
||
|
|
if (mixer->id == STI_MIXER_MAIN)
|
||
|
|
return true;
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
int sti_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
|
||
|
|
struct drm_plane *primary, struct drm_plane *cursor)
|
||
|
|
{
|
||
|
|
struct drm_crtc *crtc = &mixer->drm_crtc;
|
||
|
|
int res;
|
||
|
|
|
||
|
|
res = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
|
||
|
|
&sti_crtc_funcs, NULL);
|
||
|
|
if (res) {
|
||
|
|
DRM_ERROR("Can't initialize CRTC\n");
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
drm_crtc_helper_add(crtc, &sti_crtc_helper_funcs);
|
||
|
|
|
||
|
|
DRM_DEBUG_DRIVER("drm CRTC:%d mapped to %s\n",
|
||
|
|
crtc->base.id, sti_mixer_to_str(mixer));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|