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kernel-ark/include/drm/drm_crtc.h
Ville Syrjälä ac235dafb6 drm: Fix drm_mode_attachmode_crtc() 
Change drm_mode_attachmode_crtc() to take an "all or nothing" approach.
If an error is returned, there are no side effects visible.

Also change the function to always duplicate the mode passed in.

Also change the function to not give up when it finds the first
connector without and encoder.

A simpler approach would be to just remove the function completely as
it's unused currently.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-15 09:51:42 +00:00

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/*
* 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.
*/
#ifndef __DRM_CRTC_H__
#define __DRM_CRTC_H__
#include <linux/i2c.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/idr.h>
#include <linux/fb.h>
#include <drm/drm_fourcc.h>
struct drm_device;
struct drm_mode_set;
struct drm_framebuffer;
#define DRM_MODE_OBJECT_CRTC 0xcccccccc
#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
#define DRM_MODE_OBJECT_MODE 0xdededede
#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
#define DRM_MODE_OBJECT_FB 0xfbfbfbfb
#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
struct drm_mode_object {
uint32_t id;
uint32_t type;
};
/*
* Note on terminology: here, for brevity and convenience, we refer to connector
* control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS,
* DVI, etc. And 'screen' refers to the whole of the visible display, which
* may span multiple monitors (and therefore multiple CRTC and connector
* structures).
*/
enum drm_mode_status {
MODE_OK = 0, /* Mode OK */
MODE_HSYNC, /* hsync out of range */
MODE_VSYNC, /* vsync out of range */
MODE_H_ILLEGAL, /* mode has illegal horizontal timings */
MODE_V_ILLEGAL, /* mode has illegal horizontal timings */
MODE_BAD_WIDTH, /* requires an unsupported linepitch */
MODE_NOMODE, /* no mode with a matching name */
MODE_NO_INTERLACE, /* interlaced mode not supported */
MODE_NO_DBLESCAN, /* doublescan mode not supported */
MODE_NO_VSCAN, /* multiscan mode not supported */
MODE_MEM, /* insufficient video memory */
MODE_VIRTUAL_X, /* mode width too large for specified virtual size */
MODE_VIRTUAL_Y, /* mode height too large for specified virtual size */
MODE_MEM_VIRT, /* insufficient video memory given virtual size */
MODE_NOCLOCK, /* no fixed clock available */
MODE_CLOCK_HIGH, /* clock required is too high */
MODE_CLOCK_LOW, /* clock required is too low */
MODE_CLOCK_RANGE, /* clock/mode isn't in a ClockRange */
MODE_BAD_HVALUE, /* horizontal timing was out of range */
MODE_BAD_VVALUE, /* vertical timing was out of range */
MODE_BAD_VSCAN, /* VScan value out of range */
MODE_HSYNC_NARROW, /* horizontal sync too narrow */
MODE_HSYNC_WIDE, /* horizontal sync too wide */
MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
MODE_HBLANK_WIDE, /* horizontal blanking too wide */
MODE_VSYNC_NARROW, /* vertical sync too narrow */
MODE_VSYNC_WIDE, /* vertical sync too wide */
MODE_VBLANK_NARROW, /* vertical blanking too narrow */
MODE_VBLANK_WIDE, /* vertical blanking too wide */
MODE_PANEL, /* exceeds panel dimensions */
MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
MODE_ONE_WIDTH, /* only one width is supported */
MODE_ONE_HEIGHT, /* only one height is supported */
MODE_ONE_SIZE, /* only one resolution is supported */
MODE_NO_REDUCED, /* monitor doesn't accept reduced blanking */
MODE_UNVERIFIED = -3, /* mode needs to reverified */
MODE_BAD = -2, /* unspecified reason */
MODE_ERROR = -1 /* error condition */
};
#define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
DRM_MODE_TYPE_CRTC_C)
#define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
.name = nm, .status = 0, .type = (t), .clock = (c), \
.hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
.htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
.vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
.vscan = (vs), .flags = (f), .vrefresh = 0
#define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
struct drm_display_mode {
/* Header */
struct list_head head;
struct drm_mode_object base;
char name[DRM_DISPLAY_MODE_LEN];
enum drm_mode_status status;
unsigned int type;
/* Proposed mode values */
int clock; /* in kHz */
int hdisplay;
int hsync_start;
int hsync_end;
int htotal;
int hskew;
int vdisplay;
int vsync_start;
int vsync_end;
int vtotal;
int vscan;
unsigned int flags;
/* Addressable image size (may be 0 for projectors, etc.) */
int width_mm;
int height_mm;
/* Actual mode we give to hw */
int clock_index;
int synth_clock;
int crtc_hdisplay;
int crtc_hblank_start;
int crtc_hblank_end;
int crtc_hsync_start;
int crtc_hsync_end;
int crtc_htotal;
int crtc_hskew;
int crtc_vdisplay;
int crtc_vblank_start;
int crtc_vblank_end;
int crtc_vsync_start;
int crtc_vsync_end;
int crtc_vtotal;
int crtc_hadjusted;
int crtc_vadjusted;
/* Driver private mode info */
int private_size;
int *private;
int private_flags;
int vrefresh; /* in Hz */
int hsync; /* in kHz */
};
enum drm_connector_status {
connector_status_connected = 1,
connector_status_disconnected = 2,
connector_status_unknown = 3,
};
enum subpixel_order {
SubPixelUnknown = 0,
SubPixelHorizontalRGB,
SubPixelHorizontalBGR,
SubPixelVerticalRGB,
SubPixelVerticalBGR,
SubPixelNone,
};
#define DRM_COLOR_FORMAT_RGB444 (1<<0)
#define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
#define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
/*
* Describes a given display (e.g. CRT or flat panel) and its limitations.
*/
struct drm_display_info {
char name[DRM_DISPLAY_INFO_LEN];
/* Physical size */
unsigned int width_mm;
unsigned int height_mm;
/* Clock limits FIXME: storage format */
unsigned int min_vfreq, max_vfreq;
unsigned int min_hfreq, max_hfreq;
unsigned int pixel_clock;
unsigned int bpc;
enum subpixel_order subpixel_order;
u32 color_formats;
u8 cea_rev;
char *raw_edid; /* if any */
};
struct drm_framebuffer_funcs {
void (*destroy)(struct drm_framebuffer *framebuffer);
int (*create_handle)(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle);
/**
* Optinal callback for the dirty fb ioctl.
*
* Userspace can notify the driver via this callback
* that a area of the framebuffer has changed and should
* be flushed to the display hardware.
*
* See documentation in drm_mode.h for the struct
* drm_mode_fb_dirty_cmd for more information as all
* the semantics and arguments have a one to one mapping
* on this function.
*/
int (*dirty)(struct drm_framebuffer *framebuffer,
struct drm_file *file_priv, unsigned flags,
unsigned color, struct drm_clip_rect *clips,
unsigned num_clips);
};
struct drm_framebuffer {
struct drm_device *dev;
struct list_head head;
struct drm_mode_object base;
const struct drm_framebuffer_funcs *funcs;
unsigned int pitches[4];
unsigned int offsets[4];
unsigned int width;
unsigned int height;
/* depth can be 15 or 16 */
unsigned int depth;
int bits_per_pixel;
int flags;
uint32_t pixel_format; /* fourcc format */
struct list_head filp_head;
/* if you are using the helper */
void *helper_private;
};
struct drm_property_blob {
struct drm_mode_object base;
struct list_head head;
unsigned int length;
void *data;
};
struct drm_property_enum {
uint64_t value;
struct list_head head;
char name[DRM_PROP_NAME_LEN];
};
struct drm_property {
struct list_head head;
struct drm_mode_object base;
uint32_t flags;
char name[DRM_PROP_NAME_LEN];
uint32_t num_values;
uint64_t *values;
struct list_head enum_blob_list;
};
struct drm_crtc;
struct drm_connector;
struct drm_encoder;
struct drm_pending_vblank_event;
struct drm_plane;
/**
* drm_crtc_funcs - control CRTCs for a given device
* @reset: reset CRTC after state has been invalidate (e.g. resume)
* @dpms: control display power levels
* @save: save CRTC state
* @resore: restore CRTC state
* @lock: lock the CRTC
* @unlock: unlock the CRTC
* @shadow_allocate: allocate shadow pixmap
* @shadow_create: create shadow pixmap for rotation support
* @shadow_destroy: free shadow pixmap
* @mode_fixup: fixup proposed mode
* @mode_set: set the desired mode on the CRTC
* @gamma_set: specify color ramp for CRTC
* @destroy: deinit and free object.
*
* The drm_crtc_funcs structure is the central CRTC management structure
* in the DRM. Each CRTC controls one or more connectors (note that the name
* CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
* connectors, not just CRTs).
*
* Each driver is responsible for filling out this structure at startup time,
* in addition to providing other modesetting features, like i2c and DDC
* bus accessors.
*/
struct drm_crtc_funcs {
/* Save CRTC state */
void (*save)(struct drm_crtc *crtc); /* suspend? */
/* Restore CRTC state */
void (*restore)(struct drm_crtc *crtc); /* resume? */
/* Reset CRTC state */
void (*reset)(struct drm_crtc *crtc);
/* cursor controls */
int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height);
int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
/* Set gamma on the CRTC */
void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
uint32_t start, uint32_t size);
/* Object destroy routine */
void (*destroy)(struct drm_crtc *crtc);
int (*set_config)(struct drm_mode_set *set);
/*
* Flip to the given framebuffer. This implements the page
* flip ioctl described in drm_mode.h, specifically, the
* implementation must return immediately and block all
* rendering to the current fb until the flip has completed.
* If userspace set the event flag in the ioctl, the event
* argument will point to an event to send back when the flip
* completes, otherwise it will be NULL.
*/
int (*page_flip)(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event);
};
/**
* drm_crtc - central CRTC control structure
* @dev: parent DRM device
* @head: list management
* @base: base KMS object for ID tracking etc.
* @enabled: is this CRTC enabled?
* @mode: current mode timings
* @hwmode: mode timings as programmed to hw regs
* @x: x position on screen
* @y: y position on screen
* @funcs: CRTC control functions
* @gamma_size: size of gamma ramp
* @gamma_store: gamma ramp values
* @framedur_ns: precise frame timing
* @framedur_ns: precise line timing
* @pixeldur_ns: precise pixel timing
* @helper_private: mid-layer private data
*
* Each CRTC may have one or more connectors associated with it. This structure
* allows the CRTC to be controlled.
*/
struct drm_crtc {
struct drm_device *dev;
struct list_head head;
struct drm_mode_object base;
/* framebuffer the connector is currently bound to */
struct drm_framebuffer *fb;
bool enabled;
/* Requested mode from modesetting. */
struct drm_display_mode mode;
/* Programmed mode in hw, after adjustments for encoders,
* crtc, panel scaling etc. Needed for timestamping etc.
*/
struct drm_display_mode hwmode;
int x, y;
const struct drm_crtc_funcs *funcs;
/* CRTC gamma size for reporting to userspace */
uint32_t gamma_size;
uint16_t *gamma_store;
/* Constants needed for precise vblank and swap timestamping. */
s64 framedur_ns, linedur_ns, pixeldur_ns;
/* if you are using the helper */
void *helper_private;
};
/**
* drm_connector_funcs - control connectors on a given device
* @dpms: set power state (see drm_crtc_funcs above)
* @save: save connector state
* @restore: restore connector state
* @reset: reset connector after state has been invalidate (e.g. resume)
* @mode_valid: is this mode valid on the given connector?
* @mode_fixup: try to fixup proposed mode for this connector
* @mode_set: set this mode
* @detect: is this connector active?
* @get_modes: get mode list for this connector
* @set_property: property for this connector may need update
* @destroy: make object go away
* @force: notify the driver the connector is forced on
*
* Each CRTC may have one or more connectors attached to it. The functions
* below allow the core DRM code to control connectors, enumerate available modes,
* etc.
*/
struct drm_connector_funcs {
void (*dpms)(struct drm_connector *connector, int mode);
void (*save)(struct drm_connector *connector);
void (*restore)(struct drm_connector *connector);
void (*reset)(struct drm_connector *connector);
/* Check to see if anything is attached to the connector.
* @force is set to false whilst polling, true when checking the
* connector due to user request. @force can be used by the driver
* to avoid expensive, destructive operations during automated
* probing.
*/
enum drm_connector_status (*detect)(struct drm_connector *connector,
bool force);
int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
int (*set_property)(struct drm_connector *connector, struct drm_property *property,
uint64_t val);
void (*destroy)(struct drm_connector *connector);
void (*force)(struct drm_connector *connector);
};
/**
* drm_encoder_funcs - encoder controls
* @reset: reset state (e.g. at init or resume time)
* @destroy: cleanup and free associated data
*
* Encoders sit between CRTCs and connectors.
*/
struct drm_encoder_funcs {
void (*reset)(struct drm_encoder *encoder);
void (*destroy)(struct drm_encoder *encoder);
};
#define DRM_CONNECTOR_MAX_UMODES 16
#define DRM_CONNECTOR_MAX_PROPERTY 16
#define DRM_CONNECTOR_LEN 32
#define DRM_CONNECTOR_MAX_ENCODER 3
/**
* drm_encoder - central DRM encoder structure
* @dev: parent DRM device
* @head: list management
* @base: base KMS object
* @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
* @possible_crtcs: bitmask of potential CRTC bindings
* @possible_clones: bitmask of potential sibling encoders for cloning
* @crtc: currently bound CRTC
* @funcs: control functions
* @helper_private: mid-layer private data
*
* CRTCs drive pixels to encoders, which convert them into signals
* appropriate for a given connector or set of connectors.
*/
struct drm_encoder {
struct drm_device *dev;
struct list_head head;
struct drm_mode_object base;
int encoder_type;
uint32_t possible_crtcs;
uint32_t possible_clones;
struct drm_crtc *crtc;
const struct drm_encoder_funcs *funcs;
void *helper_private;
};
enum drm_connector_force {
DRM_FORCE_UNSPECIFIED,
DRM_FORCE_OFF,
DRM_FORCE_ON, /* force on analog part normally */
DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
};
/* should we poll this connector for connects and disconnects */
/* hot plug detectable */
#define DRM_CONNECTOR_POLL_HPD (1 << 0)
/* poll for connections */
#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
/* can cleanly poll for disconnections without flickering the screen */
/* DACs should rarely do this without a lot of testing */
#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
#define MAX_ELD_BYTES 128
/**
* drm_connector - central DRM connector control structure
* @dev: parent DRM device
* @kdev: kernel device for sysfs attributes
* @attr: sysfs attributes
* @head: list management
* @base: base KMS object
* @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
* @connector_type_id: index into connector type enum
* @interlace_allowed: can this connector handle interlaced modes?
* @doublescan_allowed: can this connector handle doublescan?
* @modes: modes available on this connector (from fill_modes() + user)
* @status: one of the drm_connector_status enums (connected, not, or unknown)
* @probed_modes: list of modes derived directly from the display
* @display_info: information about attached display (e.g. from EDID)
* @funcs: connector control functions
* @user_modes: user added mode list
* @edid_blob_ptr: DRM property containing EDID if present
* @property_ids: property tracking for this connector
* @property_values: value pointers or data for properties
* @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
* @dpms: current dpms state
* @helper_private: mid-layer private data
* @force: a %DRM_FORCE_<foo> state for forced mode sets
* @encoder_ids: valid encoders for this connector
* @encoder: encoder driving this connector, if any
* @eld: EDID-like data, if present
* @dvi_dual: dual link DVI, if found
* @max_tmds_clock: max clock rate, if found
* @latency_present: AV delay info from ELD, if found
* @video_latency: video latency info from ELD, if found
* @audio_latency: audio latency info from ELD, if found
* @null_edid_counter: track sinks that give us all zeros for the EDID
*
* Each connector may be connected to one or more CRTCs, or may be clonable by
* another connector if they can share a CRTC. Each connector also has a specific
* position in the broader display (referred to as a 'screen' though it could
* span multiple monitors).
*/
struct drm_connector {
struct drm_device *dev;
struct device kdev;
struct device_attribute *attr;
struct list_head head;
struct drm_mode_object base;
int connector_type;
int connector_type_id;
bool interlace_allowed;
bool doublescan_allowed;
struct list_head modes; /* list of modes on this connector */
enum drm_connector_status status;
/* these are modes added by probing with DDC or the BIOS */
struct list_head probed_modes;
struct drm_display_info display_info;
const struct drm_connector_funcs *funcs;
struct list_head user_modes;
struct drm_property_blob *edid_blob_ptr;
u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
uint8_t polled; /* DRM_CONNECTOR_POLL_* */
/* requested DPMS state */
int dpms;
void *helper_private;
/* forced on connector */
enum drm_connector_force force;
uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
struct drm_encoder *encoder; /* currently active encoder */
/* EDID bits */
uint8_t eld[MAX_ELD_BYTES];
bool dvi_dual;
int max_tmds_clock; /* in MHz */
bool latency_present[2];
int video_latency[2]; /* [0]: progressive, [1]: interlaced */
int audio_latency[2];
int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
};
/**
* drm_plane_funcs - driver plane control functions
* @update_plane: update the plane configuration
* @disable_plane: shut down the plane
* @destroy: clean up plane resources
*/
struct drm_plane_funcs {
int (*update_plane)(struct drm_plane *plane,
struct drm_crtc *crtc, struct drm_framebuffer *fb,
int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h);
int (*disable_plane)(struct drm_plane *plane);
void (*destroy)(struct drm_plane *plane);
};
/**
* drm_plane - central DRM plane control structure
* @dev: DRM device this plane belongs to
* @head: for list management
* @base: base mode object
* @possible_crtcs: pipes this plane can be bound to
* @format_types: array of formats supported by this plane
* @format_count: number of formats supported
* @crtc: currently bound CRTC
* @fb: currently bound fb
* @gamma_size: size of gamma table
* @gamma_store: gamma correction table
* @enabled: enabled flag
* @funcs: helper functions
* @helper_private: storage for drver layer
*/
struct drm_plane {
struct drm_device *dev;
struct list_head head;
struct drm_mode_object base;
uint32_t possible_crtcs;
uint32_t *format_types;
uint32_t format_count;
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
/* CRTC gamma size for reporting to userspace */
uint32_t gamma_size;
uint16_t *gamma_store;
bool enabled;
const struct drm_plane_funcs *funcs;
void *helper_private;
};
/**
* drm_mode_set - new values for a CRTC config change
* @head: list management
* @fb: framebuffer to use for new config
* @crtc: CRTC whose configuration we're about to change
* @mode: mode timings to use
* @x: position of this CRTC relative to @fb
* @y: position of this CRTC relative to @fb
* @connectors: array of connectors to drive with this CRTC if possible
* @num_connectors: size of @connectors array
*
* Represents a single crtc the connectors that it drives with what mode
* and from which framebuffer it scans out from.
*
* This is used to set modes.
*/
struct drm_mode_set {
struct list_head head;
struct drm_framebuffer *fb;
struct drm_crtc *crtc;
struct drm_display_mode *mode;
uint32_t x;
uint32_t y;
struct drm_connector **connectors;
size_t num_connectors;
};
/**
* struct drm_mode_config_funcs - basic driver provided mode setting functions
* @fb_create: create a new framebuffer object
* @output_poll_changed: function to handle output configuration changes
*
* Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
* involve drivers.
*/
struct drm_mode_config_funcs {
struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
struct drm_file *file_priv,
struct drm_mode_fb_cmd2 *mode_cmd);
void (*output_poll_changed)(struct drm_device *dev);
};
/**
* drm_mode_group - group of mode setting resources for potential sub-grouping
* @num_crtcs: CRTC count
* @num_encoders: encoder count
* @num_connectors: connector count
* @id_list: list of KMS object IDs in this group
*
* Currently this simply tracks the global mode setting state. But in the
* future it could allow groups of objects to be set aside into independent
* control groups for use by different user level processes (e.g. two X servers
* running simultaneously on different heads, each with their own mode
* configuration and freedom of mode setting).
*/
struct drm_mode_group {
uint32_t num_crtcs;
uint32_t num_encoders;
uint32_t num_connectors;
/* list of object IDs for this group */
uint32_t *id_list;
};
/**
* drm_mode_config - Mode configuration control structure
* @mutex: mutex protecting KMS related lists and structures
* @idr_mutex: mutex for KMS ID allocation and management
* @crtc_idr: main KMS ID tracking object
* @num_fb: number of fbs available
* @fb_list: list of framebuffers available
* @num_connector: number of connectors on this device
* @connector_list: list of connector objects
* @num_encoder: number of encoders on this device
* @encoder_list: list of encoder objects
* @num_crtc: number of CRTCs on this device
* @crtc_list: list of CRTC objects
* @min_width: minimum pixel width on this device
* @min_height: minimum pixel height on this device
* @max_width: maximum pixel width on this device
* @max_height: maximum pixel height on this device
* @funcs: core driver provided mode setting functions
* @fb_base: base address of the framebuffer
* @poll_enabled: track polling status for this device
* @output_poll_work: delayed work for polling in process context
* @*_property: core property tracking
*
* Core mode resource tracking structure. All CRTC, encoders, and connectors
* enumerated by the driver are added here, as are global properties. Some
* global restrictions are also here, e.g. dimension restrictions.
*/
struct drm_mode_config {
struct mutex mutex; /* protects configuration (mode lists etc.) */
struct mutex idr_mutex; /* for IDR management */
struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
/* this is limited to one for now */
int num_fb;
struct list_head fb_list;
int num_connector;
struct list_head connector_list;
int num_encoder;
struct list_head encoder_list;
int num_plane;
struct list_head plane_list;
int num_crtc;
struct list_head crtc_list;
struct list_head property_list;
int min_width, min_height;
int max_width, max_height;
struct drm_mode_config_funcs *funcs;
resource_size_t fb_base;
/* output poll support */
bool poll_enabled;
struct delayed_work output_poll_work;
/* pointers to standard properties */
struct list_head property_blob_list;
struct drm_property *edid_property;
struct drm_property *dpms_property;
/* DVI-I properties */
struct drm_property *dvi_i_subconnector_property;
struct drm_property *dvi_i_select_subconnector_property;
/* TV properties */
struct drm_property *tv_subconnector_property;
struct drm_property *tv_select_subconnector_property;
struct drm_property *tv_mode_property;
struct drm_property *tv_left_margin_property;
struct drm_property *tv_right_margin_property;
struct drm_property *tv_top_margin_property;
struct drm_property *tv_bottom_margin_property;
struct drm_property *tv_brightness_property;
struct drm_property *tv_contrast_property;
struct drm_property *tv_flicker_reduction_property;
struct drm_property *tv_overscan_property;
struct drm_property *tv_saturation_property;
struct drm_property *tv_hue_property;
/* Optional properties */
struct drm_property *scaling_mode_property;
struct drm_property *dithering_mode_property;
struct drm_property *dirty_info_property;
/* dumb ioctl parameters */
uint32_t preferred_depth, prefer_shadow;
};
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
#define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
#define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
#define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
#define obj_to_property(x) container_of(x, struct drm_property, base)
#define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
#define obj_to_plane(x) container_of(x, struct drm_plane, base)
struct drm_prop_enum_list {
int type;
char *name;
};
extern void drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
extern void drm_connector_init(struct drm_device *dev,
struct drm_connector *connector,
const struct drm_connector_funcs *funcs,
int connector_type);
extern void drm_connector_cleanup(struct drm_connector *connector);
extern void drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type);
extern int drm_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats, uint32_t format_count,
bool priv);
extern void drm_plane_cleanup(struct drm_plane *plane);
extern void drm_encoder_cleanup(struct drm_encoder *encoder);
extern char *drm_get_connector_name(struct drm_connector *connector);
extern char *drm_get_dpms_name(int val);
extern char *drm_get_dvi_i_subconnector_name(int val);
extern char *drm_get_dvi_i_select_name(int val);
extern char *drm_get_tv_subconnector_name(int val);
extern char *drm_get_tv_select_name(int val);
extern void drm_fb_release(struct drm_file *file_priv);
extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
extern struct edid *drm_get_edid(struct drm_connector *connector,
struct i2c_adapter *adapter);
extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
const struct drm_display_mode *mode);
extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
extern void drm_mode_config_init(struct drm_device *dev);
extern void drm_mode_config_reset(struct drm_device *dev);
extern void drm_mode_config_cleanup(struct drm_device *dev);
extern void drm_mode_set_name(struct drm_display_mode *mode);
extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
extern int drm_mode_width(struct drm_display_mode *mode);
extern int drm_mode_height(struct drm_display_mode *mode);
/* for us by fb module */
extern int drm_mode_attachmode_crtc(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_display_mode *mode);
extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
extern void drm_mode_list_concat(struct list_head *head,
struct list_head *new);
extern void drm_mode_validate_size(struct drm_device *dev,
struct list_head *mode_list,
int maxX, int maxY, int maxPitch);
extern void drm_mode_prune_invalid(struct drm_device *dev,
struct list_head *mode_list, bool verbose);
extern void drm_mode_sort(struct list_head *mode_list);
extern int drm_mode_hsync(const struct drm_display_mode *mode);
extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
int adjust_flags);
extern void drm_mode_connector_list_update(struct drm_connector *connector);
extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
struct edid *edid);
extern int drm_connector_property_set_value(struct drm_connector *connector,
struct drm_property *property,
uint64_t value);
extern int drm_connector_property_get_value(struct drm_connector *connector,
struct drm_property *property,
uint64_t *value);
extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
extern void drm_framebuffer_set_object(struct drm_device *dev,
unsigned long handle);
extern int drm_framebuffer_init(struct drm_device *dev,
struct drm_framebuffer *fb,
const struct drm_framebuffer_funcs *funcs);
extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
extern bool drm_crtc_in_use(struct drm_crtc *crtc);
extern int drm_connector_attach_property(struct drm_connector *connector,
struct drm_property *property, uint64_t init_val);
extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
const char *name, int num_values);
extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
const char *name,
const struct drm_prop_enum_list *props,
int num_values);
struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
const char *name,
uint64_t min, uint64_t max);
extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
extern int drm_property_add_enum(struct drm_property *property, int index,
uint64_t value, const char *name);
extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
char *formats[]);
extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
extern int drm_mode_create_dithering_property(struct drm_device *dev);
extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
extern char *drm_get_encoder_name(struct drm_encoder *encoder);
extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
int gamma_size);
extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
uint32_t id, uint32_t type);
/* IOCTLs */
extern int drm_mode_getresources(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_mode_getcrtc(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getconnector(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_setcrtc(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getplane(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_setplane(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_cursor_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_addfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_addfb2(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
extern int drm_mode_rmfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_addmode_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_replacefb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getencoder(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern u8 *drm_find_cea_extension(struct edid *edid);
extern bool drm_detect_hdmi_monitor(struct edid *edid);
extern bool drm_detect_monitor_audio(struct edid *edid);
extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
int hdisplay, int vdisplay, int vrefresh,
bool reduced, bool interlaced, bool margins);
extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
int hdisplay, int vdisplay, int vrefresh,
bool interlaced, int margins);
extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
int hdisplay, int vdisplay, int vrefresh,
bool interlaced, int margins, int GTF_M,
int GTF_2C, int GTF_K, int GTF_2J);
extern int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay);
extern int drm_edid_header_is_valid(const u8 *raw_edid);
extern bool drm_edid_is_valid(struct edid *edid);
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
int hsize, int vsize, int fresh);
extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
int *bpp);
#endif /* __DRM_CRTC_H__ */
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