diff options
Diffstat (limited to 'xf86drmMode.c')
| -rw-r--r-- | xf86drmMode.c | 1884 |
1 files changed, 1884 insertions, 0 deletions
diff --git a/xf86drmMode.c b/xf86drmMode.c new file mode 100644 index 0000000..a4873a0 --- /dev/null +++ b/xf86drmMode.c @@ -0,0 +1,1884 @@ +/* + * \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. + * + */ + +#include <assert.h> +#include <limits.h> +#include <stdint.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#if HAVE_SYS_SYSCTL_H +#ifdef __FreeBSD__ +#include <sys/types.h> +#endif +#include <sys/sysctl.h> +#endif +#include <stdio.h> +#include <stdbool.h> + +#include "libdrm_macros.h" +#include "xf86drmMode.h" +#include "xf86drm.h" +#include <drm.h> +#include <drm_fourcc.h> +#include <string.h> +#include <dirent.h> +#include <unistd.h> +#include <errno.h> + +#define memclear(s) memset(&s, 0, sizeof(s)) + +#define U642VOID(x) ((void *)(unsigned long)(x)) +#define VOID2U64(x) ((uint64_t)(unsigned long)(x)) + +static inline int DRM_IOCTL(int fd, unsigned long cmd, void *arg) +{ + int ret = drmIoctl(fd, cmd, arg); + return ret < 0 ? -errno : ret; +} + +/* + * Util functions + */ + +static void* drmAllocCpy(char *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. + */ + +drm_public void drmModeFreeModeInfo(drmModeModeInfoPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr); +} + +drm_public void drmModeFreeResources(drmModeResPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->fbs); + drmFree(ptr->crtcs); + drmFree(ptr->connectors); + drmFree(ptr->encoders); + drmFree(ptr); +} + +drm_public void drmModeFreeFB(drmModeFBPtr ptr) +{ + if (!ptr) + return; + + /* we might add more frees later. */ + drmFree(ptr); +} + +drm_public void drmModeFreeCrtc(drmModeCrtcPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr); +} + +drm_public void drmModeFreeConnector(drmModeConnectorPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->encoders); + drmFree(ptr->prop_values); + drmFree(ptr->props); + drmFree(ptr->modes); + drmFree(ptr); +} + +drm_public void drmModeFreeEncoder(drmModeEncoderPtr ptr) +{ + drmFree(ptr); +} + +/* + * ModeSetting functions. + */ + +drm_public int drmIsKMS(int fd) +{ + struct drm_mode_card_res res = {0}; + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res) != 0) + return 0; + + return res.count_crtcs > 0 && res.count_connectors > 0 && res.count_encoders > 0; +} + +drm_public drmModeResPtr drmModeGetResources(int fd) +{ + struct drm_mode_card_res res, counts; + drmModeResPtr r = 0; + +retry: + memclear(res); + if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) + return 0; + + counts = res; + + if (res.count_fbs) { + res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t))); + if (!res.fb_id_ptr) + goto err_allocs; + } + if (res.count_crtcs) { + res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t))); + if (!res.crtc_id_ptr) + goto err_allocs; + } + if (res.count_connectors) { + res.connector_id_ptr = VOID2U64(drmMalloc(res.count_connectors*sizeof(uint32_t))); + if (!res.connector_id_ptr) + goto err_allocs; + } + if (res.count_encoders) { + res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t))); + if (!res.encoder_id_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) + goto err_allocs; + + /* The number of available connectors and etc may have changed with a + * hotplug event in between the ioctls, in which case the field is + * silently ignored by the kernel. + */ + if (counts.count_fbs < res.count_fbs || + counts.count_crtcs < res.count_crtcs || + counts.count_connectors < res.count_connectors || + counts.count_encoders < res.count_encoders) + { + drmFree(U642VOID(res.fb_id_ptr)); + drmFree(U642VOID(res.crtc_id_ptr)); + drmFree(U642VOID(res.connector_id_ptr)); + drmFree(U642VOID(res.encoder_id_ptr)); + + goto retry; + } + + /* + * return + */ + if (!(r = drmMalloc(sizeof(*r)))) + goto err_allocs; + + 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; + + 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)); + if ((res.count_fbs && !r->fbs) || + (res.count_crtcs && !r->crtcs) || + (res.count_connectors && !r->connectors) || + (res.count_encoders && !r->encoders)) + { + drmFree(r->fbs); + drmFree(r->crtcs); + drmFree(r->connectors); + drmFree(r->encoders); + drmFree(r); + r = 0; + } + +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; +} + + +drm_public 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; + + memclear(f); + f.width = width; + f.height = height; + f.pitch = pitch; + f.bpp = bpp; + f.depth = depth; + f.handle = bo_handle; + + if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB, &f))) + return ret; + + *buf_id = f.fb_id; + return 0; +} + +drm_public int drmModeAddFB2WithModifiers(int fd, uint32_t width, + uint32_t height, uint32_t pixel_format, const uint32_t bo_handles[4], + const uint32_t pitches[4], const uint32_t offsets[4], + const uint64_t modifier[4], uint32_t *buf_id, uint32_t flags) +{ + struct drm_mode_fb_cmd2 f; + int ret; + + memclear(f); + f.width = width; + f.height = height; + f.pixel_format = pixel_format; + f.flags = flags; + memcpy(f.handles, bo_handles, 4 * sizeof(bo_handles[0])); + memcpy(f.pitches, pitches, 4 * sizeof(pitches[0])); + memcpy(f.offsets, offsets, 4 * sizeof(offsets[0])); + if (modifier) + memcpy(f.modifier, modifier, 4 * sizeof(modifier[0])); + + if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB2, &f))) + return ret; + + *buf_id = f.fb_id; + return 0; +} + +drm_public int drmModeAddFB2(int fd, uint32_t width, uint32_t height, + uint32_t pixel_format, const uint32_t bo_handles[4], + const uint32_t pitches[4], const uint32_t offsets[4], + uint32_t *buf_id, uint32_t flags) +{ + return drmModeAddFB2WithModifiers(fd, width, height, + pixel_format, bo_handles, + pitches, offsets, NULL, + buf_id, flags); +} + +drm_public int drmModeRmFB(int fd, uint32_t bufferId) +{ + return DRM_IOCTL(fd, DRM_IOCTL_MODE_RMFB, &bufferId); +} + +drm_public int drmModeCloseFB(int fd, uint32_t buffer_id) +{ + struct drm_mode_closefb closefb; + + memclear(closefb); + closefb.fb_id = buffer_id; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_CLOSEFB, &closefb); +} + +drm_public drmModeFBPtr drmModeGetFB(int fd, uint32_t buf) +{ + struct drm_mode_fb_cmd info; + drmModeFBPtr r; + + memclear(info); + 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; +} + +drm_public int drmModeDirtyFB(int fd, uint32_t bufferId, + drmModeClipPtr clips, uint32_t num_clips) +{ + struct drm_mode_fb_dirty_cmd dirty; + + memclear(dirty); + dirty.fb_id = bufferId; + dirty.clips_ptr = VOID2U64(clips); + dirty.num_clips = num_clips; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_DIRTYFB, &dirty); +} + +/* + * Crtc functions + */ + +drm_public drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId) +{ + struct drm_mode_crtc crtc; + drmModeCrtcPtr r; + + memclear(crtc); + 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->width = crtc.mode.hdisplay; + r->height = crtc.mode.vdisplay; + } + r->buffer_id = crtc.fb_id; + r->gamma_size = crtc.gamma_size; + return r; +} + +drm_public 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; + + memclear(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; + } + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETCRTC, &crtc); +} + +/* + * Cursor manipulation + */ + +drm_public int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, + uint32_t width, uint32_t height) +{ + struct drm_mode_cursor arg; + + memclear(arg); + arg.flags = DRM_MODE_CURSOR_BO; + arg.crtc_id = crtcId; + arg.width = width; + arg.height = height; + arg.handle = bo_handle; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg); +} + +drm_public int drmModeSetCursor2(int fd, uint32_t crtcId, uint32_t bo_handle, + uint32_t width, uint32_t height, int32_t hot_x, + int32_t hot_y) +{ + struct drm_mode_cursor2 arg; + + memclear(arg); + arg.flags = DRM_MODE_CURSOR_BO; + arg.crtc_id = crtcId; + arg.width = width; + arg.height = height; + arg.handle = bo_handle; + arg.hot_x = hot_x; + arg.hot_y = hot_y; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR2, &arg); +} + +drm_public int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y) +{ + struct drm_mode_cursor arg; + + memclear(arg); + arg.flags = DRM_MODE_CURSOR_MOVE; + arg.crtc_id = crtcId; + arg.x = x; + arg.y = y; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg); +} + +/* + * Encoder get + */ +drm_public drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id) +{ + struct drm_mode_get_encoder enc; + drmModeEncoderPtr r = NULL; + + memclear(enc); + enc.encoder_id = encoder_id; + + 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 + */ +static drmModeConnectorPtr +_drmModeGetConnector(int fd, uint32_t connector_id, int probe) +{ + struct drm_mode_get_connector conn, counts; + drmModeConnectorPtr r = NULL; + struct drm_mode_modeinfo stack_mode; + + memclear(conn); + conn.connector_id = connector_id; + if (!probe) { + conn.count_modes = 1; + conn.modes_ptr = VOID2U64(&stack_mode); + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) + return 0; + +retry: + counts = conn; + + if (conn.count_props) { + conn.props_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint32_t))); + if (!conn.props_ptr) + goto err_allocs; + conn.prop_values_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint64_t))); + if (!conn.prop_values_ptr) + goto err_allocs; + } + + if (conn.count_modes) { + conn.modes_ptr = VOID2U64(drmMalloc(conn.count_modes*sizeof(struct drm_mode_modeinfo))); + if (!conn.modes_ptr) + goto err_allocs; + } else { + conn.count_modes = 1; + conn.modes_ptr = VOID2U64(&stack_mode); + } + + if (conn.count_encoders) { + conn.encoders_ptr = VOID2U64(drmMalloc(conn.count_encoders*sizeof(uint32_t))); + if (!conn.encoders_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) + goto err_allocs; + + /* The number of available connectors and etc may have changed with a + * hotplug event in between the ioctls, in which case the field is + * silently ignored by the kernel. + */ + if (counts.count_props < conn.count_props || + counts.count_modes < conn.count_modes || + counts.count_encoders < conn.count_encoders) { + drmFree(U642VOID(conn.props_ptr)); + drmFree(U642VOID(conn.prop_values_ptr)); + if (U642VOID(conn.modes_ptr) != &stack_mode) + drmFree(U642VOID(conn.modes_ptr)); + drmFree(U642VOID(conn.encoders_ptr)); + + goto retry; + } + + 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; + 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->count_props && !r->props) || + (r->count_props && !r->prop_values) || + (r->count_modes && !r->modes) || + (r->count_encoders && !r->encoders)) { + drmFree(r->props); + drmFree(r->prop_values); + drmFree(r->modes); + drmFree(r->encoders); + drmFree(r); + r = 0; + } + +err_allocs: + drmFree(U642VOID(conn.prop_values_ptr)); + drmFree(U642VOID(conn.props_ptr)); + if (U642VOID(conn.modes_ptr) != &stack_mode) + drmFree(U642VOID(conn.modes_ptr)); + drmFree(U642VOID(conn.encoders_ptr)); + + return r; +} + +drm_public drmModeConnectorPtr drmModeGetConnector(int fd, uint32_t connector_id) +{ + return _drmModeGetConnector(fd, connector_id, 1); +} + +drm_public drmModeConnectorPtr drmModeGetConnectorCurrent(int fd, uint32_t connector_id) +{ + return _drmModeGetConnector(fd, connector_id, 0); +} + +drm_public uint32_t drmModeConnectorGetPossibleCrtcs(int fd, + const drmModeConnector *connector) +{ + drmModeEncoder *encoder; + int i; + uint32_t possible_crtcs; + + possible_crtcs = 0; + for (i = 0; i < connector->count_encoders; i++) { + encoder = drmModeGetEncoder(fd, connector->encoders[i]); + if (!encoder) { + return 0; + } + + possible_crtcs |= encoder->possible_crtcs; + drmModeFreeEncoder(encoder); + } + + if (possible_crtcs == 0) + errno = ENOENT; + return possible_crtcs; +} + +drm_public int drmModeAttachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) +{ + struct drm_mode_mode_cmd res; + + memclear(res); + memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); + res.connector_id = connector_id; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_ATTACHMODE, &res); +} + +drm_public int drmModeDetachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) +{ + struct drm_mode_mode_cmd res; + + memclear(res); + memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); + res.connector_id = connector_id; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_DETACHMODE, &res); +} + +drm_public drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id) +{ + struct drm_mode_get_property prop; + drmModePropertyPtr r; + + memclear(prop); + prop.prop_id = property_id; + + 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 | DRM_MODE_PROP_BITMASK))) + 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)))) + goto err_allocs; + + 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 | DRM_MODE_PROP_BITMASK)) { + 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; +} + +drm_public void drmModeFreeProperty(drmModePropertyPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->values); + drmFree(ptr->enums); + drmFree(ptr->blob_ids); + drmFree(ptr); +} + +drm_public drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, + uint32_t blob_id) +{ + struct drm_mode_get_blob blob; + drmModePropertyBlobPtr r; + + memclear(blob); + 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)))) + goto err_allocs; + + 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; +} + +static inline const uint32_t * +get_formats_ptr(const struct drm_format_modifier_blob *blob) +{ + return (const uint32_t *)(((uint8_t *)blob) + blob->formats_offset); +} + +static inline const struct drm_format_modifier * +get_modifiers_ptr(const struct drm_format_modifier_blob *blob) +{ + return (const struct drm_format_modifier *)(((uint8_t *)blob) + + blob->modifiers_offset); +} + +static bool _drmModeFormatModifierGetNext(const drmModePropertyBlobRes *blob, + drmModeFormatModifierIterator *iter) +{ + const struct drm_format_modifier *blob_modifiers, *mod; + const struct drm_format_modifier_blob *fmt_mod_blob; + const uint32_t *blob_formats; + + assert(blob && iter); + + fmt_mod_blob = blob->data; + blob_modifiers = get_modifiers_ptr(fmt_mod_blob); + blob_formats = get_formats_ptr(fmt_mod_blob); + + /* fmt_idx and mod_idx designate the number of processed formats + * and modifiers. + */ + if (iter->fmt_idx >= fmt_mod_blob->count_formats || + iter->mod_idx >= fmt_mod_blob->count_modifiers) + return false; + + iter->fmt = blob_formats[iter->fmt_idx]; + iter->mod = DRM_FORMAT_MOD_INVALID; + + /* From the latest valid found, get the next valid modifier */ + while (iter->mod_idx < fmt_mod_blob->count_modifiers) { + mod = &blob_modifiers[iter->mod_idx++]; + + /* Check if the format that fmt_idx designates, belongs to + * this modifier 64-bit window selected via mod->offset. + */ + if (iter->fmt_idx < mod->offset || + iter->fmt_idx >= mod->offset + 64) + continue; + if (!(mod->formats & (1 << (iter->fmt_idx - mod->offset)))) + continue; + + iter->mod = mod->modifier; + break; + } + + if (iter->mod_idx == fmt_mod_blob->count_modifiers) { + iter->mod_idx = 0; + iter->fmt_idx++; + } + + /* Since mod_idx reset, in order for the caller to iterate over + * the last modifier of the last format, always return true here + * and early return from the next call. + */ + return true; +} + +/** + * Iterate over formats first and then over modifiers. On each call, iter->fmt + * is retained until all associated modifiers are returned. Then, either update + * iter->fmt with the next format, or exit if there aren't any left. + * + * NOTE: clients should not make any assumption on mod_idx and fmt_idx values + * + * @blob: valid kernel blob holding formats and modifiers + * @iter: input and output iterator data. Iter data must be initialised to zero + * @return: false, on error or there aren't any further formats or modifiers left. + * true, on success and there are more formats or modifiers. + */ +drm_public bool drmModeFormatModifierBlobIterNext(const drmModePropertyBlobRes *blob, + drmModeFormatModifierIterator *iter) +{ + drmModeFormatModifierIterator tmp; + bool has_fmt; + + if (!blob || !iter) + return false; + + tmp.fmt_idx = iter->fmt_idx; + tmp.mod_idx = iter->mod_idx; + + /* With the current state of things, DRM/KMS drivers are allowed to + * construct blobs having formats and no modifiers. Userspace can't + * legitimately abort in such cases. + * + * While waiting for the kernel to perhaps disallow formats with no + * modifiers in IN_FORMATS blobs, skip the format altogether. + */ + do { + has_fmt = _drmModeFormatModifierGetNext(blob, &tmp); + if (has_fmt && tmp.mod != DRM_FORMAT_MOD_INVALID) + *iter = tmp; + + } while (has_fmt && tmp.mod == DRM_FORMAT_MOD_INVALID); + + return has_fmt; +} + +drm_public void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->data); + drmFree(ptr); +} + +drm_public int drmModeConnectorSetProperty(int fd, uint32_t connector_id, + uint32_t property_id, + uint64_t value) +{ + struct drm_mode_connector_set_property osp; + + memclear(osp); + osp.connector_id = connector_id; + osp.prop_id = property_id; + osp.value = value; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp); +} + +/* + * 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 +*/ +drm_public int drmCheckModesettingSupported(const char *busid) +{ +#if defined (__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; +#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__) + char sbusid[1024]; + char oid[128]; + int i, modesetting, ret; + size_t len; + + /* How many GPUs do we expect in the machine ? */ + for (i = 0; i < 10; i++) { + snprintf(oid, sizeof(oid), "hw.dri.%d.busid", i); + len = sizeof(sbusid); + ret = sysctlbyname(oid, sbusid, &len, NULL, 0); + if (ret == -1) { + if (errno == ENOENT) + continue; + return -EINVAL; + } + if (strcmp(sbusid, busid) != 0) + continue; + snprintf(oid, sizeof(oid), "hw.dri.%d.modesetting", i); + len = sizeof(modesetting); + ret = sysctlbyname(oid, &modesetting, &len, NULL, 0); + if (ret == -1 || len != sizeof(modesetting)) + return -EINVAL; + return (modesetting ? 0 : -ENOSYS); + } +#elif defined(__DragonFly__) + return 0; +#elif defined(__OpenBSD__) + int fd; + struct drm_mode_card_res res; + drmModeResPtr r = 0; + + if ((fd = drmOpen(NULL, busid)) < 0) + return -EINVAL; + + memset(&res, 0, sizeof(struct drm_mode_card_res)); + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) { + drmClose(fd); + return -errno; + } + + drmClose(fd); + return 0; +#endif + return -ENOSYS; +} + +drm_public int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size, + uint16_t *red, uint16_t *green, + uint16_t *blue) +{ + struct drm_mode_crtc_lut l; + + memclear(l); + l.crtc_id = crtc_id; + l.gamma_size = size; + l.red = VOID2U64(red); + l.green = VOID2U64(green); + l.blue = VOID2U64(blue); + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_GETGAMMA, &l); +} + +drm_public int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size, + const uint16_t *red, const uint16_t *green, + const uint16_t *blue) +{ + struct drm_mode_crtc_lut l; + + memclear(l); + l.crtc_id = crtc_id; + l.gamma_size = size; + l.red = VOID2U64(red); + l.green = VOID2U64(green); + l.blue = VOID2U64(blue); + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETGAMMA, &l); +} + +drm_public int drmHandleEvent(int fd, drmEventContextPtr evctx) +{ + char buffer[1024]; + int len, i; + struct drm_event *e; + struct drm_event_vblank *vblank; + struct drm_event_crtc_sequence *seq; + void *user_data; + + /* The DRM read semantics guarantees that we always get only + * complete events. */ + + len = read(fd, buffer, sizeof buffer); + if (len == 0) + return 0; + if (len < (int)sizeof *e) + return -1; + + i = 0; + while (i < len) { + e = (struct drm_event *)(buffer + i); + switch (e->type) { + case DRM_EVENT_VBLANK: + if (evctx->version < 1 || + evctx->vblank_handler == NULL) + break; + vblank = (struct drm_event_vblank *) e; + evctx->vblank_handler(fd, + vblank->sequence, + vblank->tv_sec, + vblank->tv_usec, + U642VOID (vblank->user_data)); + break; + case DRM_EVENT_FLIP_COMPLETE: + vblank = (struct drm_event_vblank *) e; + user_data = U642VOID (vblank->user_data); + + if (evctx->version >= 3 && evctx->page_flip_handler2) + evctx->page_flip_handler2(fd, + vblank->sequence, + vblank->tv_sec, + vblank->tv_usec, + vblank->crtc_id, + user_data); + else if (evctx->version >= 2 && evctx->page_flip_handler) + evctx->page_flip_handler(fd, + vblank->sequence, + vblank->tv_sec, + vblank->tv_usec, + user_data); + break; + case DRM_EVENT_CRTC_SEQUENCE: + seq = (struct drm_event_crtc_sequence *) e; + if (evctx->version >= 4 && evctx->sequence_handler) + evctx->sequence_handler(fd, + seq->sequence, + seq->time_ns, + seq->user_data); + break; + default: + break; + } + i += e->length; + } + + return 0; +} + +drm_public int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id, + uint32_t flags, void *user_data) +{ + struct drm_mode_crtc_page_flip flip; + + memclear(flip); + flip.fb_id = fb_id; + flip.crtc_id = crtc_id; + flip.user_data = VOID2U64(user_data); + flip.flags = flags; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_PAGE_FLIP, &flip); +} + +drm_public int drmModePageFlipTarget(int fd, uint32_t crtc_id, uint32_t fb_id, + uint32_t flags, void *user_data, + uint32_t target_vblank) +{ + struct drm_mode_crtc_page_flip_target flip_target; + + memclear(flip_target); + flip_target.fb_id = fb_id; + flip_target.crtc_id = crtc_id; + flip_target.user_data = VOID2U64(user_data); + flip_target.flags = flags; + flip_target.sequence = target_vblank; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_PAGE_FLIP, &flip_target); +} + +drm_public int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id, + uint32_t fb_id, uint32_t flags, + int32_t crtc_x, int32_t crtc_y, + uint32_t crtc_w, uint32_t crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + struct drm_mode_set_plane s; + + memclear(s); + s.plane_id = plane_id; + s.crtc_id = crtc_id; + s.fb_id = fb_id; + s.flags = flags; + s.crtc_x = crtc_x; + s.crtc_y = crtc_y; + s.crtc_w = crtc_w; + s.crtc_h = crtc_h; + s.src_x = src_x; + s.src_y = src_y; + s.src_w = src_w; + s.src_h = src_h; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPLANE, &s); +} + +drm_public drmModePlanePtr drmModeGetPlane(int fd, uint32_t plane_id) +{ + struct drm_mode_get_plane ovr, counts; + drmModePlanePtr r = 0; + +retry: + memclear(ovr); + ovr.plane_id = plane_id; + if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr)) + return 0; + + counts = ovr; + + if (ovr.count_format_types) { + ovr.format_type_ptr = VOID2U64(drmMalloc(ovr.count_format_types * + sizeof(uint32_t))); + if (!ovr.format_type_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr)) + goto err_allocs; + + if (counts.count_format_types < ovr.count_format_types) { + drmFree(U642VOID(ovr.format_type_ptr)); + goto retry; + } + + if (!(r = drmMalloc(sizeof(*r)))) + goto err_allocs; + + r->count_formats = ovr.count_format_types; + r->plane_id = ovr.plane_id; + r->crtc_id = ovr.crtc_id; + r->fb_id = ovr.fb_id; + r->possible_crtcs = ovr.possible_crtcs; + r->gamma_size = ovr.gamma_size; + r->formats = drmAllocCpy(U642VOID(ovr.format_type_ptr), + ovr.count_format_types, sizeof(uint32_t)); + if (ovr.count_format_types && !r->formats) { + drmFree(r->formats); + drmFree(r); + r = 0; + } + +err_allocs: + drmFree(U642VOID(ovr.format_type_ptr)); + + return r; +} + +drm_public void drmModeFreePlane(drmModePlanePtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->formats); + drmFree(ptr); +} + +drm_public drmModePlaneResPtr drmModeGetPlaneResources(int fd) +{ + struct drm_mode_get_plane_res res, counts; + drmModePlaneResPtr r = 0; + +retry: + memclear(res); + if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res)) + return 0; + + counts = res; + + if (res.count_planes) { + res.plane_id_ptr = VOID2U64(drmMalloc(res.count_planes * + sizeof(uint32_t))); + if (!res.plane_id_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res)) + goto err_allocs; + + if (counts.count_planes < res.count_planes) { + drmFree(U642VOID(res.plane_id_ptr)); + goto retry; + } + + if (!(r = drmMalloc(sizeof(*r)))) + goto err_allocs; + + r->count_planes = res.count_planes; + r->planes = drmAllocCpy(U642VOID(res.plane_id_ptr), + res.count_planes, sizeof(uint32_t)); + if (res.count_planes && !r->planes) { + drmFree(r->planes); + drmFree(r); + r = 0; + } + +err_allocs: + drmFree(U642VOID(res.plane_id_ptr)); + + return r; +} + +drm_public void drmModeFreePlaneResources(drmModePlaneResPtr ptr) +{ + if (!ptr) + return; + + drmFree(ptr->planes); + drmFree(ptr); +} + +drm_public drmModeObjectPropertiesPtr drmModeObjectGetProperties(int fd, + uint32_t object_id, + uint32_t object_type) +{ + struct drm_mode_obj_get_properties properties; + drmModeObjectPropertiesPtr ret = NULL; + uint32_t count; + +retry: + memclear(properties); + properties.obj_id = object_id; + properties.obj_type = object_type; + + if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties)) + return 0; + + count = properties.count_props; + + if (count) { + properties.props_ptr = VOID2U64(drmMalloc(count * + sizeof(uint32_t))); + if (!properties.props_ptr) + goto err_allocs; + properties.prop_values_ptr = VOID2U64(drmMalloc(count * + sizeof(uint64_t))); + if (!properties.prop_values_ptr) + goto err_allocs; + } + + if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties)) + goto err_allocs; + + if (count < properties.count_props) { + drmFree(U642VOID(properties.props_ptr)); + drmFree(U642VOID(properties.prop_values_ptr)); + goto retry; + } + count = properties.count_props; + + ret = drmMalloc(sizeof(*ret)); + if (!ret) + goto err_allocs; + + ret->count_props = count; + ret->props = drmAllocCpy(U642VOID(properties.props_ptr), + count, sizeof(uint32_t)); + ret->prop_values = drmAllocCpy(U642VOID(properties.prop_values_ptr), + count, sizeof(uint64_t)); + if (ret->count_props && (!ret->props || !ret->prop_values)) { + drmFree(ret->props); + drmFree(ret->prop_values); + drmFree(ret); + ret = NULL; + } + +err_allocs: + drmFree(U642VOID(properties.props_ptr)); + drmFree(U642VOID(properties.prop_values_ptr)); + return ret; +} + +drm_public void drmModeFreeObjectProperties(drmModeObjectPropertiesPtr ptr) +{ + if (!ptr) + return; + drmFree(ptr->props); + drmFree(ptr->prop_values); + drmFree(ptr); +} + +drm_public int drmModeObjectSetProperty(int fd, uint32_t object_id, uint32_t object_type, + uint32_t property_id, uint64_t value) +{ + struct drm_mode_obj_set_property prop; + + memclear(prop); + prop.value = value; + prop.prop_id = property_id; + prop.obj_id = object_id; + prop.obj_type = object_type; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_OBJ_SETPROPERTY, &prop); +} + +typedef struct _drmModeAtomicReqItem drmModeAtomicReqItem, *drmModeAtomicReqItemPtr; + +struct _drmModeAtomicReqItem { + uint32_t object_id; + uint32_t property_id; + uint64_t value; + uint32_t cursor; +}; + +struct _drmModeAtomicReq { + uint32_t cursor; + uint32_t size_items; + drmModeAtomicReqItemPtr items; +}; + +drm_public drmModeAtomicReqPtr drmModeAtomicAlloc(void) +{ + drmModeAtomicReqPtr req; + + req = drmMalloc(sizeof *req); + if (!req) + return NULL; + + req->items = NULL; + req->cursor = 0; + req->size_items = 0; + + return req; +} + +drm_public drmModeAtomicReqPtr drmModeAtomicDuplicate(const drmModeAtomicReqPtr old) +{ + drmModeAtomicReqPtr new; + + if (!old) + return NULL; + + new = drmMalloc(sizeof *new); + if (!new) + return NULL; + + new->cursor = old->cursor; + new->size_items = old->size_items; + + if (old->size_items) { + new->items = drmMalloc(old->size_items * sizeof(*new->items)); + if (!new->items) { + free(new); + return NULL; + } + memcpy(new->items, old->items, + old->cursor * sizeof(*new->items)); + } else { + new->items = NULL; + } + + return new; +} + +drm_public int drmModeAtomicMerge(drmModeAtomicReqPtr base, + const drmModeAtomicReqPtr augment) +{ + uint32_t i; + + if (!base) + return -EINVAL; + + if (!augment || augment->cursor == 0) + return 0; + + if (base->cursor + augment->cursor >= base->size_items) { + drmModeAtomicReqItemPtr new; + int saved_size = base->size_items; + + base->size_items = base->cursor + augment->cursor; + new = realloc(base->items, + base->size_items * sizeof(*base->items)); + if (!new) { + base->size_items = saved_size; + return -ENOMEM; + } + base->items = new; + } + + memcpy(&base->items[base->cursor], augment->items, + augment->cursor * sizeof(*augment->items)); + for (i = base->cursor; i < base->cursor + augment->cursor; i++) + base->items[i].cursor = i; + base->cursor += augment->cursor; + + return 0; +} + +drm_public int drmModeAtomicGetCursor(const drmModeAtomicReqPtr req) +{ + if (!req) + return -EINVAL; + return req->cursor; +} + +drm_public void drmModeAtomicSetCursor(drmModeAtomicReqPtr req, int cursor) +{ + if (req) + req->cursor = cursor; +} + +drm_public int drmModeAtomicAddProperty(drmModeAtomicReqPtr req, + uint32_t object_id, + uint32_t property_id, + uint64_t value) +{ + if (!req) + return -EINVAL; + + if (object_id == 0 || property_id == 0) + return -EINVAL; + + if (req->cursor >= req->size_items) { + const uint32_t item_size_inc = getpagesize() / sizeof(*req->items); + drmModeAtomicReqItemPtr new; + + req->size_items += item_size_inc; + new = realloc(req->items, req->size_items * sizeof(*req->items)); + if (!new) { + req->size_items -= item_size_inc; + return -ENOMEM; + } + req->items = new; + } + + req->items[req->cursor].object_id = object_id; + req->items[req->cursor].property_id = property_id; + req->items[req->cursor].value = value; + req->items[req->cursor].cursor = req->cursor; + req->cursor++; + + return req->cursor; +} + +drm_public void drmModeAtomicFree(drmModeAtomicReqPtr req) +{ + if (!req) + return; + + if (req->items) + drmFree(req->items); + drmFree(req); +} + +static int sort_req_list(const void *misc, const void *other) +{ + const drmModeAtomicReqItem *first = misc; + const drmModeAtomicReqItem *second = other; + + if (first->object_id != second->object_id) + return first->object_id - second->object_id; + else if (first->property_id != second->property_id) + return first->property_id - second->property_id; + else + return first->cursor - second->cursor; +} + +drm_public int drmModeAtomicCommit(int fd, const drmModeAtomicReqPtr req, + uint32_t flags, void *user_data) +{ + drmModeAtomicReqPtr sorted; + struct drm_mode_atomic atomic; + uint32_t *objs_ptr = NULL; + uint32_t *count_props_ptr = NULL; + uint32_t *props_ptr = NULL; + uint64_t *prop_values_ptr = NULL; + uint32_t last_obj_id = 0; + uint32_t i; + int obj_idx = -1; + int ret = -1; + + if (!req) + return -EINVAL; + + if (req->cursor == 0) + return 0; + + sorted = drmModeAtomicDuplicate(req); + if (sorted == NULL) + return -ENOMEM; + + memclear(atomic); + + /* Sort the list by object ID, then by property ID. */ + qsort(sorted->items, sorted->cursor, sizeof(*sorted->items), + sort_req_list); + + /* Now the list is sorted, eliminate duplicate property sets. */ + for (i = 0; i < sorted->cursor; i++) { + if (sorted->items[i].object_id != last_obj_id) { + atomic.count_objs++; + last_obj_id = sorted->items[i].object_id; + } + + if (i == sorted->cursor - 1) + continue; + + if (sorted->items[i].object_id != sorted->items[i + 1].object_id || + sorted->items[i].property_id != sorted->items[i + 1].property_id) + continue; + + memmove(&sorted->items[i], &sorted->items[i + 1], + (sorted->cursor - i - 1) * sizeof(*sorted->items)); + sorted->cursor--; + } + + for (i = 0; i < sorted->cursor; i++) + sorted->items[i].cursor = i; + + objs_ptr = drmMalloc(atomic.count_objs * sizeof objs_ptr[0]); + if (!objs_ptr) { + errno = ENOMEM; + goto out; + } + + count_props_ptr = drmMalloc(atomic.count_objs * sizeof count_props_ptr[0]); + if (!count_props_ptr) { + errno = ENOMEM; + goto out; + } + + props_ptr = drmMalloc(sorted->cursor * sizeof props_ptr[0]); + if (!props_ptr) { + errno = ENOMEM; + goto out; + } + + prop_values_ptr = drmMalloc(sorted->cursor * sizeof prop_values_ptr[0]); + if (!prop_values_ptr) { + errno = ENOMEM; + goto out; + } + + for (i = 0, last_obj_id = 0; i < sorted->cursor; i++) { + if (sorted->items[i].object_id != last_obj_id) { + obj_idx++; + objs_ptr[obj_idx] = sorted->items[i].object_id; + last_obj_id = objs_ptr[obj_idx]; + } + + count_props_ptr[obj_idx]++; + props_ptr[i] = sorted->items[i].property_id; + prop_values_ptr[i] = sorted->items[i].value; + + } + + atomic.flags = flags; + atomic.objs_ptr = VOID2U64(objs_ptr); + atomic.count_props_ptr = VOID2U64(count_props_ptr); + atomic.props_ptr = VOID2U64(props_ptr); + atomic.prop_values_ptr = VOID2U64(prop_values_ptr); + atomic.user_data = VOID2U64(user_data); + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ATOMIC, &atomic); + +out: + drmFree(objs_ptr); + drmFree(count_props_ptr); + drmFree(props_ptr); + drmFree(prop_values_ptr); + drmModeAtomicFree(sorted); + + return ret; +} + +drm_public int +drmModeCreatePropertyBlob(int fd, const void *data, size_t length, + uint32_t *id) +{ + struct drm_mode_create_blob create; + int ret; + + if (length >= 0xffffffff) + return -ERANGE; + + memclear(create); + + create.length = length; + create.data = (uintptr_t) data; + create.blob_id = 0; + *id = 0; + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &create); + if (ret != 0) + return ret; + + *id = create.blob_id; + return 0; +} + +drm_public int +drmModeDestroyPropertyBlob(int fd, uint32_t id) +{ + struct drm_mode_destroy_blob destroy; + + memclear(destroy); + destroy.blob_id = id; + return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy); +} + +drm_public int +drmModeCreateLease(int fd, const uint32_t *objects, int num_objects, int flags, + uint32_t *lessee_id) +{ + struct drm_mode_create_lease create; + int ret; + + memclear(create); + create.object_ids = (uintptr_t) objects; + create.object_count = num_objects; + create.flags = flags; + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATE_LEASE, &create); + if (ret == 0) { + *lessee_id = create.lessee_id; + return create.fd; + } + return -errno; +} + +drm_public drmModeLesseeListPtr +drmModeListLessees(int fd) +{ + struct drm_mode_list_lessees list; + uint32_t count; + drmModeLesseeListPtr ret; + + memclear(list); + + if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list)) + return NULL; + + count = list.count_lessees; + ret = drmMalloc(sizeof (drmModeLesseeListRes) + count * sizeof (ret->lessees[0])); + if (!ret) + return NULL; + + list.lessees_ptr = VOID2U64(&ret->lessees[0]); + if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list)) { + drmFree(ret); + return NULL; + } + + ret->count = count; + return ret; +} + +drm_public drmModeObjectListPtr +drmModeGetLease(int fd) +{ + struct drm_mode_get_lease get; + uint32_t count; + drmModeObjectListPtr ret; + + memclear(get); + + if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get)) + return NULL; + + count = get.count_objects; + ret = drmMalloc(sizeof (drmModeObjectListRes) + count * sizeof (ret->objects[0])); + if (!ret) + return NULL; + + get.objects_ptr = VOID2U64(&ret->objects[0]); + if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get)) { + drmFree(ret); + return NULL; + } + + ret->count = count; + return ret; +} + +drm_public int +drmModeRevokeLease(int fd, uint32_t lessee_id) +{ + struct drm_mode_revoke_lease revoke; + int ret; + + memclear(revoke); + + revoke.lessee_id = lessee_id; + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_REVOKE_LEASE, &revoke); + if (ret == 0) + return 0; + return -errno; +} + +drm_public drmModeFB2Ptr +drmModeGetFB2(int fd, uint32_t fb_id) +{ + struct drm_mode_fb_cmd2 get = { + .fb_id = fb_id, + }; + drmModeFB2Ptr ret; + int err; + + err = DRM_IOCTL(fd, DRM_IOCTL_MODE_GETFB2, &get); + if (err != 0) + return NULL; + + ret = drmMalloc(sizeof(drmModeFB2)); + if (!ret) + return NULL; + + ret->fb_id = fb_id; + ret->width = get.width; + ret->height = get.height; + ret->pixel_format = get.pixel_format; + ret->flags = get.flags; + ret->modifier = get.modifier[0]; + memcpy(ret->handles, get.handles, sizeof(uint32_t) * 4); + memcpy(ret->pitches, get.pitches, sizeof(uint32_t) * 4); + memcpy(ret->offsets, get.offsets, sizeof(uint32_t) * 4); + + return ret; +} + +drm_public void drmModeFreeFB2(drmModeFB2Ptr ptr) +{ + drmFree(ptr); +} + +drm_public const char * +drmModeGetConnectorTypeName(uint32_t connector_type) +{ + /* Keep the strings in sync with the kernel's drm_connector_enum_list in + * drm_connector.c. */ + switch (connector_type) { + case DRM_MODE_CONNECTOR_Unknown: + return "Unknown"; + case DRM_MODE_CONNECTOR_VGA: + return "VGA"; + case DRM_MODE_CONNECTOR_DVII: + return "DVI-I"; + case DRM_MODE_CONNECTOR_DVID: + return "DVI-D"; + case DRM_MODE_CONNECTOR_DVIA: + return "DVI-A"; + case DRM_MODE_CONNECTOR_Composite: + return "Composite"; + case DRM_MODE_CONNECTOR_SVIDEO: + return "SVIDEO"; + case DRM_MODE_CONNECTOR_LVDS: + return "LVDS"; + case DRM_MODE_CONNECTOR_Component: + return "Component"; + case DRM_MODE_CONNECTOR_9PinDIN: + return "DIN"; + case DRM_MODE_CONNECTOR_DisplayPort: + return "DP"; + case DRM_MODE_CONNECTOR_HDMIA: + return "HDMI-A"; + case DRM_MODE_CONNECTOR_HDMIB: + return "HDMI-B"; + case DRM_MODE_CONNECTOR_TV: + return "TV"; + case DRM_MODE_CONNECTOR_eDP: + return "eDP"; + case DRM_MODE_CONNECTOR_VIRTUAL: + return "Virtual"; + case DRM_MODE_CONNECTOR_DSI: + return "DSI"; + case DRM_MODE_CONNECTOR_DPI: + return "DPI"; + case DRM_MODE_CONNECTOR_WRITEBACK: + return "Writeback"; + case DRM_MODE_CONNECTOR_SPI: + return "SPI"; + case DRM_MODE_CONNECTOR_USB: + return "USB"; + default: + return NULL; + } +} + +drm_public int +drmModeCreateDumbBuffer(int fd, uint32_t width, uint32_t height, uint32_t bpp, + uint32_t flags, uint32_t *handle, uint32_t *pitch, + uint64_t *size) +{ + int ret; + struct drm_mode_create_dumb create = { + .width = width, + .height = height, + .bpp = bpp, + .flags = flags, + }; + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATE_DUMB, &create); + if (ret != 0) + return ret; + + *handle = create.handle; + *pitch = create.pitch; + *size = create.size; + return 0; +} + +drm_public int +drmModeDestroyDumbBuffer(int fd, uint32_t handle) +{ + struct drm_mode_destroy_dumb destroy = { + .handle = handle, + }; + + return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy); +} + +drm_public int +drmModeMapDumbBuffer(int fd, uint32_t handle, uint64_t *offset) +{ + int ret; + struct drm_mode_map_dumb map = { + .handle = handle, + }; + + ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_MAP_DUMB, &map); + if (ret != 0) + return ret; + + *offset = map.offset; + return 0; +} |