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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| # This file is part of Xpra. | ||
| # Copyright (C) 2022 Antoine Martin <antoine@xpra.org> | ||
| # Xpra is released under the terms of the GNU GPL v2, or, at your option, any | ||
| # later version. See the file COPYING for details. | ||
|
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| #cython: wraparound=False | ||
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| from xpra.os_util import bytestostr | ||
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| from xpra.log import Logger | ||
| log = Logger("encoder", "evdi") | ||
|
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| cdef extern from "drm/drm.h": | ||
| ctypedef unsigned int __kernel_size_t | ||
| ctypedef struct drm_version: | ||
| int version_major | ||
| int version_minor | ||
| int version_patchlevel | ||
| __kernel_size_t name_len | ||
| char *name | ||
| __kernel_size_t date_len | ||
| char *date | ||
| __kernel_size_t desc_len | ||
| char *desc | ||
| ctypedef drm_version* drmVersionPtr | ||
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| cdef extern from "xf86drm.h": | ||
| int DRM_NODE_PRIMARY | ||
| ctypedef struct drmDevice: | ||
| char **nodes #DRM_NODE_MAX sized array | ||
| int available_nodes #DRM_NODE_* bitmask | ||
| int bustype | ||
| #union { | ||
| #drmPciBusInfoPtr pci | ||
| #drmUsbBusInfoPtr usb | ||
| #drmPlatformBusInfoPtr platform | ||
| #drmHost1xBusInfoPtr host1x | ||
| #} businfo; | ||
| #union { | ||
| #drmPciDeviceInfoPtr pci | ||
| #drmUsbDeviceInfoPtr usb | ||
| #drmPlatformDeviceInfoPtr platform | ||
| #drmHost1xDeviceInfoPtr host1x | ||
| #} deviceinfo; | ||
| ctypedef drmDevice* drmDevicePtr | ||
|
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| drmVersionPtr drmGetVersion(int fd) | ||
| void drmFreeVersion(drmVersionPtr ver) | ||
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| int drmGetDevices(drmDevicePtr devices[], int max_devices) | ||
| void drmFreeDevices(drmDevicePtr devices[], int count) | ||
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| cdef extern from "xf86drmMode.h": | ||
| #drmModeResPtr drmModeGetResources(int fd) | ||
| int drmIsKMS(int fd) | ||
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| def query(): | ||
| info = {} | ||
| cdef int count = drmGetDevices(NULL, 16) | ||
| if count<0: | ||
| log.error(f"Error querying drm devices: {count}") | ||
| return info | ||
| if count==0: | ||
| log.warn("Warning: no drm devices found") | ||
| return info | ||
| cdef drmDevicePtr[16] devices | ||
| count = drmGetDevices(devices, 16) | ||
| assert 0<count<16 | ||
| log(f"{count} drm devices found") | ||
| cdef char *path | ||
| cdef int fd | ||
| cdef drmVersionPtr version | ||
| for i in range(count): | ||
| if not devices[i].available_nodes & (1 << DRM_NODE_PRIMARY): | ||
| log(f"{i} is not primary") | ||
| continue | ||
| dev_info = info.setdefault(i, {}) | ||
| path = devices[i].nodes[DRM_NODE_PRIMARY] | ||
| log(f"{i} at {path}") | ||
| dev_info["path"] = bytestostr(path) | ||
| with open(path, "rb") as drm_device: | ||
| fd = drm_device.fileno() | ||
| kms = bool(drmIsKMS(fd)) | ||
| dev_info["kms"] = kms | ||
| version = drmGetVersion(fd) | ||
| if version: | ||
| dev_info.update({ | ||
| "version" : (version.version_major, version.version_minor, version.version_patchlevel), | ||
| "name" : bytestostr(version.name[:version.name_len]), | ||
| "date" : bytestostr(version.date[:version.date_len]), | ||
| "desc" : bytestostr(version.desc[:version.desc_len]), | ||
| }) | ||
| drmFreeVersion(version) | ||
| #drmModeGetResources | ||
| drmFreeDevices(devices, count) | ||
| return info |