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/*
* Copyright © 2023 Google, Inc.
*
* 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.
*/
/*
* A simple header that either gives you the real libdrm or a no-op shim,
* depending on whether HAVE_LIBDRM is defined. This is intended to avoid
* the proliferation of #ifdef'ery to support environments without libdrm.
*/
#ifndef LIBDRM_H
#define LIBDRM_H
#ifdef HAVE_LIBDRM
#include <xf86drm.h>
#else
#include <errno.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>
#define DRM_NODE_PRIMARY 0
#define DRM_NODE_CONTROL 1
#define DRM_NODE_RENDER 2
#define DRM_NODE_MAX 3
#define DRM_BUS_PCI 0
#define DRM_BUS_USB 1
#define DRM_BUS_PLATFORM 2
#define DRM_BUS_HOST1X 3
typedef unsigned int drm_magic_t;
static int
drmGetMagic(int fd, drm_magic_t * magic)
{
return -EINVAL;
}
typedef struct _drmPciDeviceInfo {
uint16_t vendor_id;
uint16_t device_id;
uint16_t subvendor_id;
uint16_t subdevice_id;
uint8_t revision_id;
} drmPciDeviceInfo, *drmPciDeviceInfoPtr;
#define DRM_PLATFORM_DEVICE_NAME_LEN 512
typedef struct _drmPlatformBusInfo {
char fullname[DRM_PLATFORM_DEVICE_NAME_LEN];
} drmPlatformBusInfo, *drmPlatformBusInfoPtr;
typedef struct _drmPlatformDeviceInfo {
char **compatible; /* NULL terminated list of compatible strings */
} drmPlatformDeviceInfo, *drmPlatformDeviceInfoPtr;
#define DRM_HOST1X_DEVICE_NAME_LEN 512
typedef struct _drmHost1xBusInfo {
char fullname[DRM_HOST1X_DEVICE_NAME_LEN];
} drmHost1xBusInfo, *drmHost1xBusInfoPtr;
typedef struct _drmPciBusInfo {
uint16_t domain;
uint8_t bus;
uint8_t dev;
uint8_t func;
} drmPciBusInfo, *drmPciBusInfoPtr;
typedef struct _drmDevice {
char **nodes; /* DRM_NODE_MAX sized array */
int available_nodes; /* DRM_NODE_* bitmask */
int bustype;
union {
drmPciBusInfoPtr pci;
drmPlatformBusInfoPtr platform;
drmHost1xBusInfoPtr host1x;
} businfo;
union {
drmPciDeviceInfoPtr pci;
} deviceinfo;
/* ... */
} drmDevice, *drmDevicePtr;
#define DRM_DEVICE_GET_PCI_REVISION (1 << 0)
static inline int
drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device)
{
return -ENOENT;
}
static inline int
drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices)
{
return -ENOENT;
}
static inline int
drmGetDeviceFromDevId(dev_t dev_id, uint32_t flags, drmDevicePtr *device)
{
return -ENOENT;
}
static inline void
drmFreeDevice(drmDevicePtr *device) {}
static inline void
drmFreeDevices(drmDevicePtr devices[], int count) {}
static inline char*
drmGetDeviceNameFromFd2(int fd) { return NULL;}
typedef struct _drmVersion {
int version_major; /**< Major version */
int version_minor; /**< Minor version */
int version_patchlevel; /**< Patch level */
int name_len; /**< Length of name buffer */
char *name; /**< Name of driver */
int date_len; /**< Length of date buffer */
char *date; /**< User-space buffer to hold date */
int desc_len; /**< Length of desc buffer */
char *desc; /**< User-space buffer to hold desc */
} drmVersion, *drmVersionPtr;
static inline struct _drmVersion *
drmGetVersion(int fd) { return NULL; }
static inline void
drmFreeVersion(struct _drmVersion *v) {}
#endif
#endif
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