forked from KolibriOS/kolibrios
141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/**************************************************************************
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*
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* Copyright 2012 Francisco Jerez
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* \file Library that provides device enumeration and creation of
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* winsys/pipe_screen instances.
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*/
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#ifndef PIPE_LOADER_H
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#define PIPE_LOADER_H
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#include "pipe/p_compiler.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct pipe_screen;
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enum pipe_loader_device_type {
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PIPE_LOADER_DEVICE_SOFTWARE,
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PIPE_LOADER_DEVICE_PCI,
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NUM_PIPE_LOADER_DEVICE_TYPES
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};
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/**
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* A device known to the pipe loader.
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*/
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struct pipe_loader_device {
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enum pipe_loader_device_type type;
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union {
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struct {
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int vendor_id;
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int chip_id;
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} pci;
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} u; /**< Discriminated by \a type */
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const char *driver_name;
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const struct pipe_loader_ops *ops;
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};
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/**
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* Get a list of known devices.
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*
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* \param devs Array that will be filled with pointers to the devices
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* available in the system.
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* \param ndev Maximum number of devices to return.
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* \return Number of devices available in the system.
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*/
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int
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pipe_loader_probe(struct pipe_loader_device **devs, int ndev);
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/**
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* Create a pipe_screen for the specified device.
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*
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* \param dev Device the screen will be created for.
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* \param library_paths Colon-separated list of filesystem paths that
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* will be used to look for the pipe driver
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* module that handles this device.
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*/
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struct pipe_screen *
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pipe_loader_create_screen(struct pipe_loader_device *dev,
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const char *library_paths);
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/**
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* Release resources allocated for a list of devices.
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*
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* Should be called when the specified devices are no longer in use to
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* release any resources allocated by pipe_loader_probe.
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*
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* \param devs Devices to release.
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* \param ndev Number of devices to release.
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*/
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void
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pipe_loader_release(struct pipe_loader_device **devs, int ndev);
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/**
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* Get a list of known software devices.
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*
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* This function is platform-specific.
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*
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* \sa pipe_loader_probe
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*/
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int
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pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev);
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#ifdef HAVE_PIPE_LOADER_DRM
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/**
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* Get a list of known DRM devices.
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*
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* This function is platform-specific.
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*
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* \sa pipe_loader_probe
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*/
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int
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pipe_loader_drm_probe(struct pipe_loader_device **devs, int ndev);
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/**
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* Initialize a DRM device in an already opened fd.
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*
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* This function is platform-specific.
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*
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* \sa pipe_loader_probe
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*/
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boolean
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pipe_loader_drm_probe_fd(struct pipe_loader_device **dev, int fd);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* PIPE_LOADER_H */
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