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weston/libweston/backend-drm/drm-internal.h
Michael Olbrich 3ac911f69b drm: remove duplicate function declarations 
These functions are all declared twice in the same file. Remove on of the two
declarations.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
2020-08-06 10:22:18 +02:00

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/*
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2011 Intel Corporation
* Copyright © 2017, 2018 Collabora, Ltd.
* Copyright © 2017, 2018 General Electric Company
* Copyright (c) 2018 DisplayLink (UK) Ltd.
*
* 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 (including the
* next paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS
* 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.
*/
#include "config.h"
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/input.h>
#include <linux/vt.h>
#include <assert.h>
#include <sys/mman.h>
#include <time.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <drm_fourcc.h>
#ifdef BUILD_DRM_GBM
#include <gbm.h>
#endif
#include <libudev.h>
#include <libweston/libweston.h>
#include <libweston/backend-drm.h>
#include <libweston/weston-log.h>
#include "shared/helpers.h"
#include "libinput-seat.h"
#include "backend.h"
#include "libweston-internal.h"
#ifndef DRM_CLIENT_CAP_ASPECT_RATIO
#define DRM_CLIENT_CAP_ASPECT_RATIO 4
#endif
#ifndef GBM_BO_USE_CURSOR
#define GBM_BO_USE_CURSOR GBM_BO_USE_CURSOR_64X64
#endif
#ifndef GBM_BO_USE_LINEAR
#define GBM_BO_USE_LINEAR (1 << 4)
#endif
#ifndef DRM_PLANE_ZPOS_INVALID_PLANE
#define DRM_PLANE_ZPOS_INVALID_PLANE 0xffffffffffffffffULL
#endif
/**
* A small wrapper to print information into the 'drm-backend' debug scope.
*
* The following conventions are used to print variables:
*
* - fixed uint32_t values, including Weston object IDs such as weston_output
* IDs, DRM object IDs such as CRTCs or properties, and GBM/DRM formats:
* "%lu (0x%lx)" (unsigned long) value, (unsigned long) value
*
* - fixed uint64_t values, such as DRM property values (including object IDs
* when used as a value):
* "%llu (0x%llx)" (unsigned long long) value, (unsigned long long) value
*
* - non-fixed-width signed int:
* "%d" value
*
* - non-fixed-width unsigned int:
* "%u (0x%x)" value, value
*
* - non-fixed-width unsigned long:
* "%lu (0x%lx)" value, value
*
* Either the integer or hexadecimal forms may be omitted if it is known that
* one representation is not useful (e.g. width/height in hex are rarely what
* you want).
*
* This is to avoid implicit widening or narrowing when we use fixed-size
* types: uint32_t can be resolved by either unsigned int or unsigned long
* on a 32-bit system but only unsigned int on a 64-bit system, with uint64_t
* being unsigned long long on a 32-bit system and unsigned long on a 64-bit
* system. To avoid confusing side effects, we explicitly cast to the widest
* possible type and use a matching format specifier.
*/
#define drm_debug(b, ...) \
weston_log_scope_printf((b)->debug, __VA_ARGS__)
#define MAX_CLONED_CONNECTORS 4
#ifndef DRM_MODE_PICTURE_ASPECT_64_27
#define DRM_MODE_PICTURE_ASPECT_64_27 3
#define DRM_MODE_FLAG_PIC_AR_64_27 \
(DRM_MODE_PICTURE_ASPECT_64_27<<19)
#endif
#ifndef DRM_MODE_PICTURE_ASPECT_256_135
#define DRM_MODE_PICTURE_ASPECT_256_135 4
#define DRM_MODE_FLAG_PIC_AR_256_135 \
(DRM_MODE_PICTURE_ASPECT_256_135<<19)
#endif
/**
* Represents the values of an enum-type KMS property
*/
struct drm_property_enum_info {
const char *name; /**< name as string (static, not freed) */
bool valid; /**< true if value is supported; ignore if false */
uint64_t value; /**< raw value */
};
/**
* Holds information on a DRM property, including its ID and the enum
* values it holds.
*
* DRM properties are allocated dynamically, and maintained as DRM objects
* within the normal object ID space; they thus do not have a stable ID
* to refer to. This includes enum values, which must be referred to by
* integer values, but these are not stable.
*
* drm_property_info allows a cache to be maintained where Weston can use
* enum values internally to refer to properties, with the mapping to DRM
* ID values being maintained internally.
*/
struct drm_property_info {
const char *name; /**< name as string (static, not freed) */
uint32_t prop_id; /**< KMS property object ID */
uint32_t flags;
unsigned int num_enum_values; /**< number of enum values */
struct drm_property_enum_info *enum_values; /**< array of enum values */
unsigned int num_range_values;
uint64_t range_values[2];
};
/**
* List of properties attached to DRM planes
*/
enum wdrm_plane_property {
WDRM_PLANE_TYPE = 0,
WDRM_PLANE_SRC_X,
WDRM_PLANE_SRC_Y,
WDRM_PLANE_SRC_W,
WDRM_PLANE_SRC_H,
WDRM_PLANE_CRTC_X,
WDRM_PLANE_CRTC_Y,
WDRM_PLANE_CRTC_W,
WDRM_PLANE_CRTC_H,
WDRM_PLANE_FB_ID,
WDRM_PLANE_CRTC_ID,
WDRM_PLANE_IN_FORMATS,
WDRM_PLANE_IN_FENCE_FD,
WDRM_PLANE_FB_DAMAGE_CLIPS,
WDRM_PLANE_ZPOS,
WDRM_PLANE__COUNT
};
/**
* Possible values for the WDRM_PLANE_TYPE property.
*/
enum wdrm_plane_type {
WDRM_PLANE_TYPE_PRIMARY = 0,
WDRM_PLANE_TYPE_CURSOR,
WDRM_PLANE_TYPE_OVERLAY,
WDRM_PLANE_TYPE__COUNT
};
/**
* List of properties attached to a DRM connector
*/
enum wdrm_connector_property {
WDRM_CONNECTOR_EDID = 0,
WDRM_CONNECTOR_DPMS,
WDRM_CONNECTOR_CRTC_ID,
WDRM_CONNECTOR_NON_DESKTOP,
WDRM_CONNECTOR_CONTENT_PROTECTION,
WDRM_CONNECTOR_HDCP_CONTENT_TYPE,
WDRM_CONNECTOR_PANEL_ORIENTATION,
WDRM_CONNECTOR__COUNT
};
enum wdrm_content_protection_state {
WDRM_CONTENT_PROTECTION_UNDESIRED = 0,
WDRM_CONTENT_PROTECTION_DESIRED,
WDRM_CONTENT_PROTECTION_ENABLED,
WDRM_CONTENT_PROTECTION__COUNT
};
enum wdrm_hdcp_content_type {
WDRM_HDCP_CONTENT_TYPE0 = 0,
WDRM_HDCP_CONTENT_TYPE1,
WDRM_HDCP_CONTENT_TYPE__COUNT
};
enum wdrm_dpms_state {
WDRM_DPMS_STATE_OFF = 0,
WDRM_DPMS_STATE_ON,
WDRM_DPMS_STATE_STANDBY, /* unused */
WDRM_DPMS_STATE_SUSPEND, /* unused */
WDRM_DPMS_STATE__COUNT
};
enum wdrm_panel_orientation {
WDRM_PANEL_ORIENTATION_NORMAL = 0,
WDRM_PANEL_ORIENTATION_UPSIDE_DOWN,
WDRM_PANEL_ORIENTATION_LEFT_SIDE_UP,
WDRM_PANEL_ORIENTATION_RIGHT_SIDE_UP,
WDRM_PANEL_ORIENTATION__COUNT
};
/**
* List of properties attached to DRM CRTCs
*/
enum wdrm_crtc_property {
WDRM_CRTC_MODE_ID = 0,
WDRM_CRTC_ACTIVE,
WDRM_CRTC__COUNT
};
struct drm_backend {
struct weston_backend base;
struct weston_compositor *compositor;
struct udev *udev;
struct wl_event_source *drm_source;
struct udev_monitor *udev_monitor;
struct wl_event_source *udev_drm_source;
struct {
int id;
int fd;
char *filename;
dev_t devnum;
} drm;
struct gbm_device *gbm;
struct wl_listener session_listener;
uint32_t gbm_format;
/* we need these parameters in order to not fail drmModeAddFB2()
* due to out of bounds dimensions, and then mistakenly set
* sprites_are_broken:
*/
int min_width, max_width;
int min_height, max_height;
struct wl_list plane_list;
void *repaint_data;
bool state_invalid;
/* CRTC IDs not used by any enabled output. */
struct wl_array unused_crtcs;
bool sprites_are_broken;
bool cursors_are_broken;
bool universal_planes;
bool atomic_modeset;
bool use_pixman;
bool use_pixman_shadow;
struct udev_input input;
int32_t cursor_width;
int32_t cursor_height;
uint32_t pageflip_timeout;
bool shutting_down;
bool aspect_ratio_supported;
bool fb_modifiers;
struct weston_log_scope *debug;
};
struct drm_mode {
struct weston_mode base;
drmModeModeInfo mode_info;
uint32_t blob_id;
};
enum drm_fb_type {
BUFFER_INVALID = 0, /**< never used */
BUFFER_CLIENT, /**< directly sourced from client */
BUFFER_DMABUF, /**< imported from linux_dmabuf client */
BUFFER_PIXMAN_DUMB, /**< internal Pixman rendering */
BUFFER_GBM_SURFACE, /**< internal EGL rendering */
BUFFER_CURSOR, /**< internal cursor buffer */
};
struct drm_fb {
enum drm_fb_type type;
int refcnt;
uint32_t fb_id, size;
uint32_t handles[4];
uint32_t strides[4];
uint32_t offsets[4];
int num_planes;
const struct pixel_format_info *format;
uint64_t modifier;
int width, height;
int fd;
struct weston_buffer_reference buffer_ref;
struct weston_buffer_release_reference buffer_release_ref;
/* Used by gbm fbs */
struct gbm_bo *bo;
struct gbm_surface *gbm_surface;
/* Used by dumb fbs */
void *map;
};
struct drm_edid {
char eisa_id[13];
char monitor_name[13];
char pnp_id[5];
char serial_number[13];
};
/**
* Pending state holds one or more drm_output_state structures, collected from
* performing repaint. This pending state is transient, and only lives between
* beginning a repaint group and flushing the results: after flush, each
* output state will complete and be retired separately.
*/
struct drm_pending_state {
struct drm_backend *backend;
struct wl_list output_list;
};
/*
* Output state holds the dynamic state for one Weston output, i.e. a KMS CRTC,
* plus >= 1 each of encoder/connector/plane. Since everything but the planes
* is currently statically assigned per-output, we mainly use this to track
* plane state.
*
* pending_state is set when the output state is owned by a pending_state,
* i.e. when it is being constructed and has not yet been applied. When the
* output state has been applied, the owning pending_state is freed.
*/
struct drm_output_state {
struct drm_pending_state *pending_state;
struct drm_output *output;
struct wl_list link;
enum dpms_enum dpms;
enum weston_hdcp_protection protection;
struct wl_list plane_list;
};
/**
* An instance of this class is created each time we believe we have a plane
* suitable to be used by a view as a direct scan-out. The list is initalized
* and populated locally.
*/
struct drm_plane_zpos {
struct drm_plane *plane;
struct wl_list link; /**< :candidate_plane_zpos_list */
};
/**
* Plane state holds the dynamic state for a plane: where it is positioned,
* and which buffer it is currently displaying.
*
* The plane state is owned by an output state, except when setting an initial
* state. See drm_output_state for notes on state object lifetime.
*/
struct drm_plane_state {
struct drm_plane *plane;
struct drm_output *output;
struct drm_output_state *output_state;
struct drm_fb *fb;
struct weston_view *ev; /**< maintained for drm_assign_planes only */
int32_t src_x, src_y;
uint32_t src_w, src_h;
int32_t dest_x, dest_y;
uint32_t dest_w, dest_h;
uint64_t zpos;
bool complete;
/* We don't own the fd, so we shouldn't close it */
int in_fence_fd;
uint32_t damage_blob_id; /* damage to kernel */
struct wl_list link; /* drm_output_state::plane_list */
};
/**
* A plane represents one buffer, positioned within a CRTC, and stacked
* relative to other planes on the same CRTC.
*
* Each CRTC has a 'primary plane', which use used to display the classic
* framebuffer contents, as accessed through the legacy drmModeSetCrtc
* call (which combines setting the CRTC's actual physical mode, and the
* properties of the primary plane).
*
* The cursor plane also has its own alternate legacy API.
*
* Other planes are used opportunistically to display content we do not
* wish to blit into the primary plane. These non-primary/cursor planes
* are referred to as 'sprites'.
*/
struct drm_plane {
struct weston_plane base;
struct drm_backend *backend;
enum wdrm_plane_type type;
uint32_t possible_crtcs;
uint32_t plane_id;
uint32_t count_formats;
struct drm_property_info props[WDRM_PLANE__COUNT];
/* The last state submitted to the kernel for this plane. */
struct drm_plane_state *state_cur;
uint64_t zpos_min;
uint64_t zpos_max;
struct wl_list link;
struct {
uint32_t format;
uint32_t count_modifiers;
uint64_t *modifiers;
} formats[];
};
struct drm_head {
struct weston_head base;
struct drm_backend *backend;
drmModeConnector *connector;
uint32_t connector_id;
struct drm_edid edid;
/* Holds the properties for the connector */
struct drm_property_info props_conn[WDRM_CONNECTOR__COUNT];
struct backlight *backlight;
drmModeModeInfo inherited_mode; /**< Original mode on the connector */
uint32_t inherited_crtc_id; /**< Original CRTC assignment */
};
struct drm_output {
struct weston_output base;
struct drm_backend *backend;
uint32_t crtc_id; /* object ID to pass to DRM functions */
int pipe; /* index of CRTC in resource array / bitmasks */
/* Holds the properties for the CRTC */
struct drm_property_info props_crtc[WDRM_CRTC__COUNT];
bool page_flip_pending;
bool atomic_complete_pending;
bool destroy_pending;
bool disable_pending;
bool dpms_off_pending;
uint32_t gbm_cursor_handle[2];
struct drm_fb *gbm_cursor_fb[2];
struct drm_plane *cursor_plane;
struct weston_view *cursor_view;
int current_cursor;
struct gbm_surface *gbm_surface;
uint32_t gbm_format;
uint32_t gbm_bo_flags;
/* Plane being displayed directly on the CRTC */
struct drm_plane *scanout_plane;
/* The last state submitted to the kernel for this CRTC. */
struct drm_output_state *state_cur;
/* The previously-submitted state, where the hardware has not
* yet acknowledged completion of state_cur. */
struct drm_output_state *state_last;
struct drm_fb *dumb[2];
pixman_image_t *image[2];
int current_image;
pixman_region32_t previous_damage;
struct vaapi_recorder *recorder;
struct wl_listener recorder_frame_listener;
struct wl_event_source *pageflip_timer;
bool virtual;
submit_frame_cb virtual_submit_frame;
};
static inline struct drm_head *
to_drm_head(struct weston_head *base)
{
return container_of(base, struct drm_head, base);
}
static inline struct drm_output *
to_drm_output(struct weston_output *base)
{
return container_of(base, struct drm_output, base);
}
static inline struct drm_backend *
to_drm_backend(struct weston_compositor *base)
{
return container_of(base->backend, struct drm_backend, base);
}
static inline struct drm_mode *
to_drm_mode(struct weston_mode *base)
{
return container_of(base, struct drm_mode, base);
}
static inline const char *
drm_output_get_plane_type_name(struct drm_plane *p)
{
switch (p->type) {
case WDRM_PLANE_TYPE_PRIMARY:
return "primary";
case WDRM_PLANE_TYPE_CURSOR:
return "cursor";
case WDRM_PLANE_TYPE_OVERLAY:
return "overlay";
default:
assert(0);
break;
}
}
struct drm_output *
drm_output_find_by_crtc(struct drm_backend *b, uint32_t crtc_id);
struct drm_head *
drm_head_find_by_connector(struct drm_backend *backend, uint32_t connector_id);
static inline bool
drm_view_transform_supported(struct weston_view *ev, struct weston_output *output)
{
struct weston_buffer_viewport *viewport = &ev->surface->buffer_viewport;
/* This will incorrectly disallow cases where the combination of
* buffer and view transformations match the output transform.
* Fixing this requires a full analysis of the transformation
* chain. */
if (ev->transform.enabled &&
ev->transform.matrix.type >= WESTON_MATRIX_TRANSFORM_ROTATE)
return false;
if (viewport->buffer.transform != output->transform)
return false;
return true;
}
int
drm_mode_ensure_blob(struct drm_backend *backend, struct drm_mode *mode);
struct drm_mode *
drm_output_choose_mode(struct drm_output *output,
struct weston_mode *target_mode);
void
update_head_from_connector(struct drm_head *head,
drmModeObjectProperties *props);
void
drm_mode_list_destroy(struct drm_backend *backend, struct wl_list *mode_list);
void
drm_output_print_modes(struct drm_output *output);
int
drm_output_set_mode(struct weston_output *base,
enum weston_drm_backend_output_mode mode,
const char *modeline);
void
drm_property_info_populate(struct drm_backend *b,
const struct drm_property_info *src,
struct drm_property_info *info,
unsigned int num_infos,
drmModeObjectProperties *props);
uint64_t
drm_property_get_value(struct drm_property_info *info,
const drmModeObjectProperties *props,
uint64_t def);
uint64_t *
drm_property_get_range_values(struct drm_property_info *info,
const drmModeObjectProperties *props);
int
drm_plane_populate_formats(struct drm_plane *plane, const drmModePlane *kplane,
const drmModeObjectProperties *props);
void
drm_property_info_free(struct drm_property_info *info, int num_props);
extern struct drm_property_enum_info plane_type_enums[];
extern const struct drm_property_info plane_props[];
extern struct drm_property_enum_info dpms_state_enums[];
extern struct drm_property_enum_info content_protection_enums[];
extern struct drm_property_enum_info hdcp_content_type_enums[];
extern const struct drm_property_info connector_props[];
extern const struct drm_property_info crtc_props[];
int
init_kms_caps(struct drm_backend *b);
int
drm_pending_state_test(struct drm_pending_state *pending_state);
int
drm_pending_state_apply(struct drm_pending_state *pending_state);
int
drm_pending_state_apply_sync(struct drm_pending_state *pending_state);
void
drm_output_set_gamma(struct weston_output *output_base,
uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b);
void
drm_output_update_msc(struct drm_output *output, unsigned int seq);
void
drm_output_update_complete(struct drm_output *output, uint32_t flags,
unsigned int sec, unsigned int usec);
int
on_drm_input(int fd, uint32_t mask, void *data);
struct drm_fb *
drm_fb_ref(struct drm_fb *fb);
void
drm_fb_unref(struct drm_fb *fb);
struct drm_fb *
drm_fb_create_dumb(struct drm_backend *b, int width, int height,
uint32_t format);
struct drm_fb *
drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
bool is_opaque, enum drm_fb_type type);
#ifdef BUILD_DRM_GBM
extern struct drm_fb *
drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev);
extern bool
drm_can_scanout_dmabuf(struct weston_compositor *ec,
struct linux_dmabuf_buffer *dmabuf);
#else
static inline struct drm_fb *
drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev)
{
return NULL;
}
static inline bool
drm_can_scanout_dmabuf(struct weston_compositor *ec,
struct linux_dmabuf_buffer *dmabuf)
{
return false;
}
#endif
struct drm_pending_state *
drm_pending_state_alloc(struct drm_backend *backend);
void
drm_pending_state_free(struct drm_pending_state *pending_state);
struct drm_output_state *
drm_pending_state_get_output(struct drm_pending_state *pending_state,
struct drm_output *output);
/**
* Mode for drm_output_state_duplicate.
*/
enum drm_output_state_duplicate_mode {
DRM_OUTPUT_STATE_CLEAR_PLANES, /**< reset all planes to off */
DRM_OUTPUT_STATE_PRESERVE_PLANES, /**< preserve plane state */
};
struct drm_output_state *
drm_output_state_alloc(struct drm_output *output,
struct drm_pending_state *pending_state);
struct drm_output_state *
drm_output_state_duplicate(struct drm_output_state *src,
struct drm_pending_state *pending_state,
enum drm_output_state_duplicate_mode plane_mode);
void
drm_output_state_free(struct drm_output_state *state);
struct drm_plane_state *
drm_output_state_get_plane(struct drm_output_state *state_output,
struct drm_plane *plane);
struct drm_plane_state *
drm_output_state_get_existing_plane(struct drm_output_state *state_output,
struct drm_plane *plane);
struct drm_plane_state *
drm_plane_state_alloc(struct drm_output_state *state_output,
struct drm_plane *plane);
struct drm_plane_state *
drm_plane_state_duplicate(struct drm_output_state *state_output,
struct drm_plane_state *src);
void
drm_plane_state_free(struct drm_plane_state *state, bool force);
void
drm_plane_state_put_back(struct drm_plane_state *state);
bool
drm_plane_state_coords_for_view(struct drm_plane_state *state,
struct weston_view *ev, uint64_t zpos);
void
drm_assign_planes(struct weston_output *output_base, void *repaint_data);
bool
drm_plane_is_available(struct drm_plane *plane, struct drm_output *output);
void
drm_output_render(struct drm_output_state *state, pixman_region32_t *damage);
int
parse_gbm_format(const char *s, uint32_t default_value, uint32_t *gbm_format);
extern struct gl_renderer_interface *gl_renderer;
#ifdef BUILD_DRM_VIRTUAL
extern int
drm_backend_init_virtual_output_api(struct weston_compositor *compositor);
#else
inline static int
drm_backend_init_virtual_output_api(struct weston_compositor *compositor)
{
return 0;
}
#endif
#ifdef BUILD_DRM_GBM
int
init_egl(struct drm_backend *b);
int
drm_output_init_egl(struct drm_output *output, struct drm_backend *b);
void
drm_output_fini_egl(struct drm_output *output);
struct drm_fb *
drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage);
void
renderer_switch_binding(struct weston_keyboard *keyboard,
const struct timespec *time, uint32_t key, void *data);
#else
inline static int
init_egl(struct drm_backend *b)
{
weston_log("Compiled without GBM/EGL support\n");
return -1;
}
inline static int
drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
{
return -1;
}
inline static void
drm_output_fini_egl(struct drm_output *output)
{
}
inline static struct drm_fb *
drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage)
{
return NULL;
}
inline static void
renderer_switch_binding(struct weston_keyboard *keyboard,
const struct timespec *time, uint32_t key, void *data)
{
weston_log("Compiled without GBM/EGL support\n");
}
#endif
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