/*
* Copyright (c) 2008 NVIDIA, Corporation
*
* 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.
*/
#define _GNU_SOURCE 1
#include <string.h>
#define NEED_REPLIES
#include <stdlib.h>
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#include "va_nvctrl.h"
#define NV_CONTROL_ERRORS 0
#define NV_CONTROL_EVENTS 5
#define NV_CONTROL_NAME "NV-CONTROL"
#define NV_CTRL_TARGET_TYPE_X_SCREEN 0
#define NV_CTRL_TARGET_TYPE_GPU 1
#define NV_CTRL_TARGET_TYPE_FRAMELOCK 2
#define NV_CTRL_TARGET_TYPE_VCSC 3 /* Visual Computing System */
#define NV_CTRL_STRING_NVIDIA_DRIVER_VERSION 3 /* R--G */
#define X_nvCtrlQueryExtension 0
#define X_nvCtrlIsNv 1
#define X_nvCtrlQueryStringAttribute 4
typedef struct {
CARD8 reqType;
CARD8 nvReqType;
CARD16 length B16;
} xnvCtrlQueryExtensionReq;
#define sz_xnvCtrlQueryExtensionReq 4
typedef struct {
BYTE type; /* X_Reply */
CARD8 padb1;
CARD16 sequenceNumber B16;
CARD32 length B32;
CARD16 major B16;
CARD16 minor B16;
CARD32 padl4 B32;
CARD32 padl5 B32;
CARD32 padl6 B32;
CARD32 padl7 B32;
CARD32 padl8 B32;
} xnvCtrlQueryExtensionReply;
#define sz_xnvCtrlQueryExtensionReply 32
typedef struct {
CARD8 reqType;
CARD8 nvReqType;
CARD16 length B16;
CARD32 screen B32;
} xnvCtrlIsNvReq;
#define sz_xnvCtrlIsNvReq 8
typedef struct {
BYTE type; /* X_Reply */
CARD8 padb1;
CARD16 sequenceNumber B16;
CARD32 length B32;
CARD32 isnv B32;
CARD32 padl4 B32;
CARD32 padl5 B32;
CARD32 padl6 B32;
CARD32 padl7 B32;
CARD32 padl8 B32;
} xnvCtrlIsNvReply;
#define sz_xnvCtrlIsNvReply 32
typedef struct {
CARD8 reqType;
CARD8 nvReqType;
CARD16 length B16;
CARD16 target_id B16; /* X screen number or GPU number */
CARD16 target_type B16; /* X screen or GPU */
CARD32 display_mask B32;
CARD32 attribute B32;
} xnvCtrlQueryStringAttributeReq;
#define sz_xnvCtrlQueryStringAttributeReq 16
typedef struct {
BYTE type;
BYTE pad0;
CARD16 sequenceNumber B16;
CARD32 length B32;
CARD32 flags B32;
CARD32 n B32; /* Length of string */
CARD32 pad4 B32;
CARD32 pad5 B32;
CARD32 pad6 B32;
CARD32 pad7 B32;
} xnvCtrlQueryStringAttributeReply;
#define sz_xnvCtrlQueryStringAttributeReply 32
#define NVCTRL_EXT_NEED_CHECK (XPointer)(~0)
#define NVCTRL_EXT_NEED_NOTHING (XPointer)(0)
#define NVCTRL_EXT_NEED_TARGET_SWAP (XPointer)(1)
static XExtensionInfo _nvctrl_ext_info_data;
static XExtensionInfo *nvctrl_ext_info = &_nvctrl_ext_info_data;
static /* const */ char *nvctrl_extension_name = NV_CONTROL_NAME;
#define XNVCTRLCheckExtension(dpy,i,val) \
XextCheckExtension (dpy, i, nvctrl_extension_name, val)
#define XNVCTRLSimpleCheckExtension(dpy,i) \
XextSimpleCheckExtension (dpy, i, nvctrl_extension_name)
static int close_display();
static /* const */ XExtensionHooks nvctrl_extension_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
NULL, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
NULL, /* error_string */
};
static XEXT_GENERATE_FIND_DISPLAY (find_display, nvctrl_ext_info,
nvctrl_extension_name,
&nvctrl_extension_hooks,
NV_CONTROL_EVENTS, NVCTRL_EXT_NEED_CHECK)
static XEXT_GENERATE_CLOSE_DISPLAY (close_display, nvctrl_ext_info)
static Bool XNVCTRLQueryVersion (Display *dpy, int *major, int *minor);
/*
* NV-CONTROL versions 1.8 and 1.9 pack the target_type and target_id
* fields in reversed order. In order to talk to one of these servers,
* we need to swap these fields.
*/
static void XNVCTRLCheckTargetData(Display *dpy, XExtDisplayInfo *info,
int *target_type, int *target_id)
{
/* Find out what the server's NV-CONTROL version is and
* setup for swapping if we need to.
*/
if (info->data == NVCTRL_EXT_NEED_CHECK) {
int major, minor;
if (XNVCTRLQueryVersion(dpy, &major, &minor)) {
if (major == 1 &&
(minor == 8 || minor == 9)) {
info->data = NVCTRL_EXT_NEED_TARGET_SWAP;
} else {
info->data = NVCTRL_EXT_NEED_NOTHING;
}
} else {
info->data = NVCTRL_EXT_NEED_NOTHING;
}
}
/* We need to swap the target_type and target_id */
if (info->data == NVCTRL_EXT_NEED_TARGET_SWAP) {
int tmp;
tmp = *target_type;
*target_type = *target_id;
*target_id = tmp;
}
}
static Bool XNVCTRLQueryExtension (
Display *dpy,
int *event_basep,
int *error_basep
){
XExtDisplayInfo *info = find_display (dpy);
if (XextHasExtension(info)) {
if (event_basep) *event_basep = info->codes->first_event;
if (error_basep) *error_basep = info->codes->first_error;
return True;
} else {
return False;
}
}
static Bool XNVCTRLQueryVersion (
Display *dpy,
int *major,
int *minor
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryExtensionReply rep;
xnvCtrlQueryExtensionReq *req;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlQueryExtension, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryExtension;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
if (major) *major = rep.major;
if (minor) *minor = rep.minor;
UnlockDisplay (dpy);
SyncHandle ();
return True;
}
static Bool XNVCTRLIsNvScreen (
Display *dpy,
int screen
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlIsNvReply rep;
xnvCtrlIsNvReq *req;
Bool isnv;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlIsNv, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlIsNv;
req->screen = screen;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
isnv = rep.isnv;
UnlockDisplay (dpy);
SyncHandle ();
return isnv;
}
static Bool XNVCTRLQueryTargetStringAttribute (
Display *dpy,
int target_type,
int target_id,
unsigned int display_mask,
unsigned int attribute,
char **ptr
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryStringAttributeReply rep;
xnvCtrlQueryStringAttributeReq *req;
Bool exists;
int length, numbytes, slop;
if (!ptr) return False;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
XNVCTRLCheckTargetData(dpy, info, &target_type, &target_id);
LockDisplay (dpy);
GetReq (nvCtrlQueryStringAttribute, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryStringAttribute;
req->target_type = target_type;
req->target_id = target_id;
req->display_mask = display_mask;
req->attribute = attribute;
if (!_XReply (dpy, (xReply *) &rep, 0, False)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
length = rep.length;
numbytes = rep.n;
slop = numbytes & 3;
*ptr = (char *) Xmalloc(numbytes);
if (! *ptr) {
_XEatData(dpy, length);
UnlockDisplay (dpy);
SyncHandle ();
return False;
} else {
_XRead(dpy, (char *) *ptr, numbytes);
if (slop) _XEatData(dpy, 4-slop);
}
exists = rep.flags;
UnlockDisplay (dpy);
SyncHandle ();
return exists;
}
static Bool XNVCTRLQueryStringAttribute (
Display *dpy,
int screen,
unsigned int display_mask,
unsigned int attribute,
char **ptr
){
return XNVCTRLQueryTargetStringAttribute(dpy, NV_CTRL_TARGET_TYPE_X_SCREEN,
screen, display_mask,
attribute, ptr);
}
Bool VA_NVCTRLQueryDirectRenderingCapable( Display *dpy, int screen,
Bool *isCapable )
{
int event_base;
int error_base;
if (isCapable)
*isCapable = False;
if (!XNVCTRLQueryExtension(dpy, &event_base, &error_base))
return False;
if (isCapable && XNVCTRLIsNvScreen(dpy, screen))
*isCapable = True;
return True;
}
Bool VA_NVCTRLGetClientDriverName( Display *dpy, int screen,
int *ddxDriverMajorVersion, int *ddxDriverMinorVersion,
int *ddxDriverPatchVersion, char **clientDriverName )
{
if (ddxDriverMajorVersion)
*ddxDriverMajorVersion = 0;
if (ddxDriverMinorVersion)
*ddxDriverMinorVersion = 0;
if (ddxDriverPatchVersion)
*ddxDriverPatchVersion = 0;
if (clientDriverName)
*clientDriverName = NULL;
char *nvidia_driver_version = NULL;
if (!XNVCTRLQueryStringAttribute(dpy, screen, 0, NV_CTRL_STRING_NVIDIA_DRIVER_VERSION, &nvidia_driver_version))
return False;
char *end, *str = nvidia_driver_version;
unsigned long v = strtoul(str, &end, 10);
if (end && end != str) {
if (ddxDriverMajorVersion)
*ddxDriverMajorVersion = v;
if (*(str = end) == '.') {
v = strtoul(str + 1, &end, 10);
if (end && end != str && (*end == '.' || *end == '\0')) {
if (ddxDriverMinorVersion)
*ddxDriverMinorVersion = v;
if (*(str = end) == '.') {
v = strtoul(str + 1, &end, 10);
if (end && end != str && *end == '\0') {
if (ddxDriverPatchVersion)
*ddxDriverPatchVersion = v;
}
}
}
}
}
Xfree(nvidia_driver_version);
if (clientDriverName)
*clientDriverName = strdup("nvidia");
return True;
}