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// SPDX-License-Identifier: GPL-2.0-only
/**************************************************************************
* Copyright (c) 2007-2011, Intel Corporation.
* All Rights Reserved.
*
**************************************************************************/
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_modeset_helper.h>
#include "framebuffer.h"
#include "psb_drv.h"
static const struct drm_framebuffer_funcs psb_fb_funcs = {
.destroy = drm_gem_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
};
/**
* psb_framebuffer_init - initialize a framebuffer
* @dev: our DRM device
* @fb: framebuffer to set up
* @mode_cmd: mode description
* @obj: backing object
*
* Configure and fill in the boilerplate for our frame buffer. Return
* 0 on success or an error code if we fail.
*/
static int psb_framebuffer_init(struct drm_device *dev,
struct drm_framebuffer *fb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
{
const struct drm_format_info *info;
int ret;
/*
* Reject unknown formats, YUV formats, and formats with more than
* 4 bytes per pixel.
*/
info = drm_get_format_info(dev, mode_cmd);
if (!info || !info->depth || info->cpp[0] > 4)
return -EINVAL;
if (mode_cmd->pitches[0] & 63)
return -EINVAL;
drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
fb->obj[0] = obj;
ret = drm_framebuffer_init(dev, fb, &psb_fb_funcs);
if (ret) {
dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
return ret;
}
return 0;
}
/**
* psb_framebuffer_create - create a framebuffer backed by gt
* @dev: our DRM device
* @mode_cmd: the description of the requested mode
* @obj: the backing object
*
* Create a framebuffer object backed by the gt, and fill in the
* boilerplate required
*
* TODO: review object references
*/
struct drm_framebuffer *psb_framebuffer_create(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
{
struct drm_framebuffer *fb;
int ret;
fb = kzalloc(sizeof(*fb), GFP_KERNEL);
if (!fb)
return ERR_PTR(-ENOMEM);
ret = psb_framebuffer_init(dev, fb, mode_cmd, obj);
if (ret) {
kfree(fb);
return ERR_PTR(ret);
}
return fb;
}
/**
* psb_user_framebuffer_create - create framebuffer
* @dev: our DRM device
* @filp: client file
* @cmd: mode request
*
* Create a new framebuffer backed by a userspace GEM object
*/
static struct drm_framebuffer *psb_user_framebuffer_create
(struct drm_device *dev, struct drm_file *filp,
const struct drm_mode_fb_cmd2 *cmd)
{
struct drm_gem_object *obj;
struct drm_framebuffer *fb;
/*
* Find the GEM object and thus the gtt range object that is
* to back this space
*/
obj = drm_gem_object_lookup(filp, cmd->handles[0]);
if (obj == NULL)
return ERR_PTR(-ENOENT);
/* Let the core code do all the work */
fb = psb_framebuffer_create(dev, cmd, obj);
if (IS_ERR(fb))
drm_gem_object_put(obj);
return fb;
}
static const struct drm_mode_config_funcs psb_mode_funcs = {
.fb_create = psb_user_framebuffer_create,
};
static void psb_setup_outputs(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
struct drm_connector_list_iter conn_iter;
struct drm_connector *connector;
drm_mode_create_scaling_mode_property(dev);
/* It is ok for this to fail - we just don't get backlight control */
if (!dev_priv->backlight_property)
dev_priv->backlight_property = drm_property_create_range(dev, 0,
"backlight", 0, 100);
dev_priv->ops->output_init(dev);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
struct drm_encoder *encoder = &gma_encoder->base;
int crtc_mask = 0, clone_mask = 0;
/* valid crtcs */
switch (gma_encoder->type) {
case INTEL_OUTPUT_ANALOG:
crtc_mask = (1 << 0);
clone_mask = (1 << INTEL_OUTPUT_ANALOG);
break;
case INTEL_OUTPUT_SDVO:
crtc_mask = dev_priv->ops->sdvo_mask;
clone_mask = 0;
break;
case INTEL_OUTPUT_LVDS:
crtc_mask = dev_priv->ops->lvds_mask;
clone_mask = 0;
break;
case INTEL_OUTPUT_MIPI:
crtc_mask = (1 << 0);
clone_mask = 0;
break;
case INTEL_OUTPUT_MIPI2:
crtc_mask = (1 << 2);
clone_mask = 0;
break;
case INTEL_OUTPUT_HDMI:
crtc_mask = dev_priv->ops->hdmi_mask;
clone_mask = (1 << INTEL_OUTPUT_HDMI);
break;
case INTEL_OUTPUT_DISPLAYPORT:
crtc_mask = (1 << 0) | (1 << 1);
clone_mask = 0;
break;
case INTEL_OUTPUT_EDP:
crtc_mask = (1 << 1);
clone_mask = 0;
}
encoder->possible_crtcs = crtc_mask;
encoder->possible_clones =
gma_connector_clones(dev, clone_mask);
}
drm_connector_list_iter_end(&conn_iter);
}
void psb_modeset_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
int i;
if (drmm_mode_config_init(dev))
return;
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
dev->mode_config.funcs = &psb_mode_funcs;
/* num pipes is 2 for PSB but 1 for Mrst */
for (i = 0; i < dev_priv->num_pipe; i++)
psb_intel_crtc_init(dev, i, mode_dev);
dev->mode_config.max_width = 4096;
dev->mode_config.max_height = 4096;
psb_setup_outputs(dev);
if (dev_priv->ops->errata)
dev_priv->ops->errata(dev);
dev_priv->modeset = true;
}
void psb_modeset_cleanup(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
if (dev_priv->modeset) {
drm_kms_helper_poll_fini(dev);
}
}
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