renesas/periject.git - Renesas periject clone

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Diffstat (limited to 'wiki/Chat_log/20200319-core-chatlog')

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/* * \file xf86drmMode.c * Header for DRM modesetting interface. * * \author Jakob Bornecrantz <wallbraker@gmail.com> * * \par Acknowledgements: * Feb 2007, Dave Airlie <airlied@linux.ie> */ /* * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas. * Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie> * Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.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 * 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. * */ /* * TODO the types we are after are defined in diffrent headers on diffrent * platforms find which headers to include to get uint32_t */ #include <stdint.h> #include <sys/ioctl.h> #include <stdio.h> #include "xf86drmMode.h" #include "xf86drm.h" #include <drm.h> #include <string.h> #include <dirent.h> #include <errno.h> #define U642VOID(x) ((void *)(unsigned long)(x)) #define VOID2U64(x) ((uint64_t)(unsigned long)(x)) /* * Util functions */ void* drmAllocCpy(void *array, int count, int entry_size) { char *r; int i; if (!count || !array || !entry_size) return 0; if (!(r = drmMalloc(count*entry_size))) return 0; for (i = 0; i < count; i++) memcpy(r+(entry_size*i), array+(entry_size*i), entry_size); return r; } /* * A couple of free functions. */ void drmModeFreeModeInfo(drmModeModeInfoPtr ptr) { if (!ptr) return; drmFree(ptr); } void drmModeFreeResources(drmModeResPtr ptr) { if (!ptr) return; drmFree(ptr); } void drmModeFreeFB(drmModeFBPtr ptr) { if (!ptr) return; /* we might add more frees later. */ drmFree(ptr); } void drmModeFreeCrtc(drmModeCrtcPtr ptr) { if (!ptr) return; drmFree(ptr); } void drmModeFreeConnector(drmModeConnectorPtr ptr) { if (!ptr) return; drmFree(ptr->modes); drmFree(ptr); } void drmModeFreeEncoder(drmModeEncoderPtr ptr) { drmFree(ptr); } /* * ModeSetting functions. */ drmModeResPtr drmModeGetResources(int fd) { struct drm_mode_card_res res; drmModeResPtr r = 0; memset(&res, 0, sizeof(struct drm_mode_card_res)); if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) return 0; if (res.count_fbs) res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t))); if (res.count_crtcs) res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t))); if (res.count_connectors) res.connector_id_ptr = VOID2U64(drmMalloc(res.count_connectors*sizeof(uint32_t))); if (res.count_encoders) res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t))); if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) { r = NULL; goto err_allocs; } /* * return */ if (!(r = drmMalloc(sizeof(*r)))) return 0; r->min_width = res.min_width; r->max_width = res.max_width; r->min_height = res.min_height; r->max_height = res.max_height; r->count_fbs = res.count_fbs; r->count_crtcs = res.count_crtcs; r->count_connectors = res.count_connectors; r->count_encoders = res.count_encoders; /* TODO we realy should test if these allocs fails. */ r->fbs = drmAllocCpy(U642VOID(res.fb_id_ptr), res.count_fbs, sizeof(uint32_t)); r->crtcs = drmAllocCpy(U642VOID(res.crtc_id_ptr), res.count_crtcs, sizeof(uint32_t)); r->connectors = drmAllocCpy(U642VOID(res.connector_id_ptr), res.count_connectors, sizeof(uint32_t)); r->encoders = drmAllocCpy(U642VOID(res.encoder_id_ptr), res.count_encoders, sizeof(uint32_t)); err_allocs: drmFree(U642VOID(res.fb_id_ptr)); drmFree(U642VOID(res.crtc_id_ptr)); drmFree(U642VOID(res.connector_id_ptr)); drmFree(U642VOID(res.encoder_id_ptr)); return r; } int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth, uint8_t bpp, uint32_t pitch, uint32_t bo_handle, uint32_t *buf_id) { struct drm_mode_fb_cmd f; int ret; f.width = width; f.height = height; f.pitch = pitch; f.bpp = bpp; f.depth = depth; f.handle = bo_handle; if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_ADDFB, &f))) return ret; *buf_id = f.fb_id; return 0; } int drmModeRmFB(int fd, uint32_t bufferId) { return drmIoctl(fd, DRM_IOCTL_MODE_RMFB, &bufferId); } drmModeFBPtr drmModeGetFB(int fd, uint32_t buf) { struct drm_mode_fb_cmd info; drmModeFBPtr r; info.fb_id = buf; if (drmIoctl(fd, DRM_IOCTL_MODE_GETFB, &info)) return NULL; if (!(r = drmMalloc(sizeof(*r)))) return NULL; r->fb_id = info.fb_id; r->width = info.width; r->height = info.height; r->pitch = info.pitch; r->bpp = info.bpp; r->handle = info.handle; r->depth = info.depth; return r; } /* * Crtc functions */ drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId) { struct drm_mode_crtc crtc; drmModeCrtcPtr r; crtc.crtc_id = crtcId; if (drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc)) return 0; /* * return */ if (!(r = drmMalloc(sizeof(*r)))) return 0; r->crtc_id = crtc.crtc_id; r->x = crtc.x; r->y = crtc.y; r->mode_valid = crtc.mode_valid; if (r->mode_valid) memcpy(&r->mode, &crtc.mode, sizeof(struct drm_mode_modeinfo)); r->buffer_id = crtc.fb_id; r->gamma_size = crtc.gamma_size; return r; } int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId, uint32_t x, uint32_t y, uint32_t *connectors, int count, drmModeModeInfoPtr mode) { struct drm_mode_crtc crtc; crtc.x = x; crtc.y = y; crtc.crtc_id = crtcId; crtc.fb_id = bufferId; crtc.set_connectors_ptr = VOID2U64(connectors); crtc.count_connectors = count; if (mode) { memcpy(&crtc.mode, mode, sizeof(struct drm_mode_modeinfo)); crtc.mode_valid = 1; } else crtc.mode_valid = 0; return drmIoctl(fd, DRM_IOCTL_MODE_SETCRTC, &crtc); } /* * Cursor manipulation */ int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height) { struct drm_mode_cursor arg; arg.flags = DRM_MODE_CURSOR_BO; arg.crtc_id = crtcId; arg.width = width; arg.height = height; arg.handle = bo_handle; return drmIoctl(fd, DRM_IOCTL_MODE_CURSOR, &arg); } int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y) { struct drm_mode_cursor arg; arg.flags = DRM_MODE_CURSOR_MOVE; arg.crtc_id = crtcId; arg.x = x; arg.y = y; return drmIoctl(fd, DRM_IOCTL_MODE_CURSOR, &arg); } /* * Encoder get */ drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id) { struct drm_mode_get_encoder enc; drmModeEncoderPtr r = NULL; enc.encoder_id = encoder_id; enc.encoder_type = 0; enc.possible_crtcs = 0; enc.possible_clones = 0; if (drmIoctl(fd, DRM_IOCTL_MODE_GETENCODER, &enc)) return 0; if (!(r = drmMalloc(sizeof(*r)))) return 0; r->encoder_id = enc.encoder_id; r->crtc_id = enc.crtc_id; r->encoder_type = enc.encoder_type; r->possible_crtcs = enc.possible_crtcs; r->possible_clones = enc.possible_clones; return r; } /* * Connector manipulation */ drmModeConnectorPtr drmModeGetConnector(int fd, uint32_t connector_id) { struct drm_mode_get_connector conn; drmModeConnectorPtr r = NULL; conn.connector_id = connector_id; conn.connector_type_id = 0; conn.connector_type = 0; conn.count_modes = 0; conn.modes_ptr = 0; conn.count_props = 0; conn.props_ptr = 0; conn.prop_values_ptr = 0; conn.count_encoders = 0; conn.encoders_ptr = 0; if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) return 0; if (conn.count_props) { conn.props_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint32_t))); conn.prop_values_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint64_t))); } if (conn.count_modes) conn.modes_ptr = VOID2U64(drmMalloc(conn.count_modes*sizeof(struct drm_mode_modeinfo))); if (conn.count_encoders) conn.encoders_ptr = VOID2U64(drmMalloc(conn.count_encoders*sizeof(uint32_t))); if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) goto err_allocs; if(!(r = drmMalloc(sizeof(*r)))) { goto err_allocs; } r->connector_id = conn.connector_id; r->encoder_id = conn.encoder_id; r->connection = conn.connection; r->mmWidth = conn.mm_width; r->mmHeight = conn.mm_height; /* convert subpixel from kernel to userspace */ r->subpixel = conn.subpixel + 1; r->count_modes = conn.count_modes; /* TODO we should test if these alloc & cpy fails. */ r->count_props = conn.count_props; r->props = drmAllocCpy(U642VOID(conn.props_ptr), conn.count_props, sizeof(uint32_t)); r->prop_values = drmAllocCpy(U642VOID(conn.prop_values_ptr), conn.count_props, sizeof(uint64_t)); r->modes = drmAllocCpy(U642VOID(conn.modes_ptr), conn.count_modes, sizeof(struct drm_mode_modeinfo)); r->count_encoders = conn.count_encoders; r->encoders = drmAllocCpy(U642VOID(conn.encoders_ptr), conn.count_encoders, sizeof(uint32_t)); r->connector_type = conn.connector_type; r->connector_type_id = conn.connector_type_id; if (!r->props || !r->prop_values || !r->modes || !r->encoders) goto err_allocs; err_allocs: drmFree(U642VOID(conn.prop_values_ptr)); drmFree(U642VOID(conn.props_ptr)); drmFree(U642VOID(conn.modes_ptr)); drmFree(U642VOID(conn.encoders_ptr)); return r; } int drmModeAttachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) { struct drm_mode_mode_cmd res; memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); res.connector_id = connector_id; return drmIoctl(fd, DRM_IOCTL_MODE_ATTACHMODE, &res); } int drmModeDetachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) { struct drm_mode_mode_cmd res; memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); res.connector_id = connector_id; return drmIoctl(fd, DRM_IOCTL_MODE_DETACHMODE, &res); } drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id) { struct drm_mode_get_property prop; drmModePropertyPtr r; prop.prop_id = property_id; prop.count_enum_blobs = 0; prop.count_values = 0; prop.flags = 0; prop.enum_blob_ptr = 0; prop.values_ptr = 0; if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) return 0; if (prop.count_values) prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t))); if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_ENUM)) prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum))); if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_BLOB)) { prop.values_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t))); prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t))); } if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) { r = NULL; goto err_allocs; } if (!(r = drmMalloc(sizeof(*r)))) return NULL; r->prop_id = prop.prop_id; r->count_values = prop.count_values; r->flags = prop.flags; if (prop.count_values) r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_values, sizeof(uint64_t)); if (prop.flags & DRM_MODE_PROP_ENUM) { r->count_enums = prop.count_enum_blobs; r->enums = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(struct drm_mode_property_enum)); } else if (prop.flags & DRM_MODE_PROP_BLOB) { r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_enum_blobs, sizeof(uint32_t)); r->blob_ids = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(uint32_t)); r->count_blobs = prop.count_enum_blobs; } strncpy(r->name, prop.name, DRM_PROP_NAME_LEN); r->name[DRM_PROP_NAME_LEN-1] = 0; err_allocs: drmFree(U642VOID(prop.values_ptr)); drmFree(U642VOID(prop.enum_blob_ptr)); return r; } void drmModeFreeProperty(drmModePropertyPtr ptr) { if (!ptr) return; drmFree(ptr->values); drmFree(ptr->enums); drmFree(ptr); } drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id) { struct drm_mode_get_blob blob; drmModePropertyBlobPtr r; blob.length = 0; blob.data = 0; blob.blob_id = blob_id; if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) return NULL; if (blob.length) blob.data = VOID2U64(drmMalloc(blob.length)); if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) { r = NULL; goto err_allocs; } if (!(r = drmMalloc(sizeof(*r)))) return NULL; r->id = blob.blob_id; r->length = blob.length; r->data = drmAllocCpy(U642VOID(blob.data), 1, blob.length); err_allocs: drmFree(U642VOID(blob.data)); return r; } void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr) { if (!ptr) return; drmFree(ptr->data); drmFree(ptr); } int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id, uint64_t value) { struct drm_mode_connector_set_property osp; int ret; osp.connector_id = connector_id; osp.prop_id = property_id; osp.value = value; if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp))) return ret; return 0; } /* * checks if a modesetting capable driver has attached to the pci id * returns 0 if modesetting supported. * -EINVAL or invalid bus id * -ENOSYS if no modesetting support */ int drmCheckModesettingSupported(const char *busid) { #ifdef __linux__ char pci_dev_dir[1024]; int domain, bus, dev, func; DIR *sysdir; struct dirent *dent; int found = 0, ret; ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev, &func); if (ret != 4) return -EINVAL; sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm", domain, bus, dev, func); sysdir = opendir(pci_dev_dir); if (sysdir) { dent = readdir(sysdir); while (dent) { if (!strncmp(dent->d_name, "controlD", 8)) { found = 1; break; } dent = readdir(sysdir); } closedir(sysdir); if (found) return 0; } sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/", domain, bus, dev, func); sysdir = opendir(pci_dev_dir); if (!sysdir) return -EINVAL; dent = readdir(sysdir); while (dent) { if (!strncmp(dent->d_name, "drm:controlD", 12)) { found = 1; break; } dent = readdir(sysdir); } closedir(sysdir); if (found) return 0; #endif return -ENOSYS; } int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size, uint16_t *red, uint16_t *green, uint16_t *blue) { int ret; struct drm_mode_crtc_lut l; l.crtc_id = crtc_id; l.gamma_size = size; l.red = VOID2U64(red); l.green = VOID2U64(green); l.blue = VOID2U64(blue); if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_GETGAMMA, &l))) return ret; return 0; } int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size, uint16_t *red, uint16_t *green, uint16_t *blue) { int ret; struct drm_mode_crtc_lut l; l.crtc_id = crtc_id; l.gamma_size = size; l.red = VOID2U64(red); l.green = VOID2U64(green); l.blue = VOID2U64(blue); if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_SETGAMMA, &l))) return ret; return 0; }


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