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more WIP on blobs.. 

I'm going to pass back a list of blob ids and lengths in the getproperty.
will need another ioctl to return the blob data as it is variable length.
main
Dave Airlie 2007-12-05 16:31:35 +10:00
parent 1a6c95ef71
commit c9cda51af5
4 changed files with 68 additions and 39 deletions
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20
libdrm/xf86drmMode.c
View File

@ -406,7 +406,8 @@ drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
{
struct drm_mode_get_property prop;
drmModePropertyPtr r;
struct drm_mode_property_blob *blob_tmp;
int i;
prop.prop_id = property_id;
prop.count_enum_blobs = 0;
prop.count_values = 0;
@ -420,9 +421,14 @@ drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
if (prop.count_values)
prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t)));
if (prop.count_enum_blobs)
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 (ioctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) {
r = NULL;
goto err_allocs;
@ -433,10 +439,18 @@ drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
r->prop_id = prop.prop_id;
r->count_values = prop.count_values;
r->count_enums = prop.count_enum_blobs;
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_ENUM) {
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;

11
libdrm/xf86drmMode.h
View File

@ -69,15 +69,22 @@ typedef struct _drmModeRes {
typedef struct drm_mode_fb_cmd drmModeFB, *drmModeFBPtr;
typedef struct _drmModePropertyBlob {
uint32_t id;
uint32_t length;
void *data;
} drmModePropertyBlobRes, *drmModePropertyBlobPtr;
typedef struct _drmModeProperty {
unsigned int prop_id;
unsigned int flags;
unsigned char name[DRM_PROP_NAME_LEN];
int count_values;
uint64_t *values;
uint64_t *values; // store the blob lengths
int count_enums;
struct drm_mode_property_enum *enums;
int count_blobs;
uint32_t *blob_ids; // store the blob IDs
} drmModePropertyRes, *drmModePropertyPtr;
typedef struct _drmModeCrtc {

25
linux-core/drm_crtc.c
View File

@ -1968,7 +1968,9 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
struct drm_property_enum *prop_enum;
struct drm_property_enum __user *enum_ptr;
struct drm_property_blob *prop_blob;
uint32_t *blob_id_ptr;
uint64_t __user *values_ptr;
uint32_t __user *blob_length_ptr;
mutex_lock(&dev->mode_config.mutex);
property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id);
@ -2002,7 +2004,8 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
}
out_resp->count_values = value_count;
if ((out_resp->count_enum_blobs >= enum_count) && enum_count && (property->flags & DRM_MODE_PROP_ENUM)) {
if (property->flags & DRM_MODE_PROP_ENUM) {
if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
copied = 0;
enum_ptr = (struct drm_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
@ -2020,26 +2023,30 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
}
}
out_resp->count_enum_blobs = enum_count;
}
#if 0
if ((out_resp->count_blobs >= enum_count) && blob_count && (property->flags & DRM_MODE_PROP_BLOB)) {
if (property->flags & DRM_MODE_PROP_BLOB) {
if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
copied = 0;
list_for_each_entry(prop_blob, &property->enum_list, head) {
if (put_user(prop_enum->value, &out_resp->blobs[copied].value)) {
blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
if (put_user(prop_blob->id, blob_id_ptr + copied)) {
ret = -EFAULT;
goto done;
}
if (copy_to_user(&out_resp->enums[copied].name,
prop_enum->name, DRM_PROP_NAME_LEN)) {
if (put_user(prop_blob->length, blob_length_ptr + copied)) {
ret = -EFAULT;
goto done;
}
copied++;
}
}
out_resp->count_enums = enum_count;
#endif
out_resp->count_enum_blobs = enum_count;
}
done:
mutex_unlock(&dev->mode_config.mutex);
return ret;

5
shared-core/drm.h
View File

@ -981,12 +981,13 @@ struct drm_mode_property_enum {
};
struct drm_mode_property_blob {
uint64_t data_ptr;
uint32_t length;
};
struct drm_mode_get_property {
uint64_t values_ptr;
uint64_t enum_blob_ptr;
uint64_t values_ptr; /* values and blob lengths */
uint64_t enum_blob_ptr; /* enum and blob id ptrs */
unsigned int prop_id;
unsigned int flags;