3c4fdcfb29
This removes the requirement for user space to pin a buffer before setting a mode that is backed by the pixels from that buffer. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@linux.ie>
125 lines
4.7 KiB
C
125 lines
4.7 KiB
C
/*
|
|
* Copyright © 2006 Keith Packard
|
|
* Copyright © 2007-2008 Dave Airlie
|
|
* Copyright © 2007-2008 Intel Corporation
|
|
* Jesse Barnes <jesse.barnes@intel.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* The DRM mode setting helper functions are common code for drivers to use if
|
|
* they wish. Drivers are not forced to use this code in their
|
|
* implementations but it would be useful if they code they do use at least
|
|
* provides a consistent interface and operation to userspace
|
|
*/
|
|
|
|
#ifndef __DRM_CRTC_HELPER_H__
|
|
#define __DRM_CRTC_HELPER_H__
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/types.h>
|
|
#include <linux/idr.h>
|
|
|
|
#include <linux/fb.h>
|
|
|
|
struct drm_crtc_helper_funcs {
|
|
/*
|
|
* Control power levels on the CRTC. If the mode passed in is
|
|
* unsupported, the provider must use the next lowest power level.
|
|
*/
|
|
void (*dpms)(struct drm_crtc *crtc, int mode);
|
|
void (*prepare)(struct drm_crtc *crtc);
|
|
void (*commit)(struct drm_crtc *crtc);
|
|
|
|
/* Provider can fixup or change mode timings before modeset occurs */
|
|
bool (*mode_fixup)(struct drm_crtc *crtc,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode);
|
|
/* Actually set the mode */
|
|
void (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode, int x, int y,
|
|
struct drm_framebuffer *old_fb);
|
|
|
|
/* Move the crtc on the current fb to the given position *optional* */
|
|
void (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
|
|
struct drm_framebuffer *old_fb);
|
|
};
|
|
|
|
struct drm_encoder_helper_funcs {
|
|
void (*dpms)(struct drm_encoder *encoder, int mode);
|
|
void (*save)(struct drm_encoder *encoder);
|
|
void (*restore)(struct drm_encoder *encoder);
|
|
|
|
bool (*mode_fixup)(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode);
|
|
void (*prepare)(struct drm_encoder *encoder);
|
|
void (*commit)(struct drm_encoder *encoder);
|
|
void (*mode_set)(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode);
|
|
/* detect for DAC style encoders */
|
|
enum drm_connector_status (*detect)(struct drm_encoder *encoder,
|
|
struct drm_connector *connector);
|
|
};
|
|
|
|
struct drm_connector_helper_funcs {
|
|
int (*get_modes)(struct drm_connector *connector);
|
|
int (*mode_valid)(struct drm_connector *connector,
|
|
struct drm_display_mode *mode);
|
|
struct drm_encoder *(*best_encoder)(struct drm_connector *connector);
|
|
};
|
|
|
|
extern void drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY);
|
|
extern void drm_helper_disable_unused_functions(struct drm_device *dev);
|
|
extern int drm_helper_hotplug_stage_two(struct drm_device *dev);
|
|
extern bool drm_helper_initial_config(struct drm_device *dev, bool can_grow);
|
|
extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
|
|
extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
|
|
struct drm_display_mode *mode,
|
|
int x, int y,
|
|
struct drm_framebuffer *old_fb);
|
|
extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
|
|
|
|
extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
|
|
struct drm_mode_fb_cmd *mode_cmd);
|
|
|
|
static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
|
|
const struct drm_crtc_helper_funcs *funcs)
|
|
{
|
|
crtc->helper_private = (void *)funcs;
|
|
}
|
|
|
|
static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
|
|
const struct drm_encoder_helper_funcs *funcs)
|
|
{
|
|
encoder->helper_private = (void *)funcs;
|
|
}
|
|
|
|
static inline void drm_connector_helper_add(struct drm_connector *connector,
|
|
const struct drm_connector_helper_funcs *funcs)
|
|
{
|
|
connector->helper_private = (void *)funcs;
|
|
}
|
|
|
|
extern int drm_helper_resume_force_mode(struct drm_device *dev);
|
|
#endif
|