.flash_state = IA_CSS_FRAME_FLASH_STATE_NONE, \
}
-/* @brief Fill a frame with zeros
- *
- * @param frame The frame.
- * @return None
- *
- * Fill a frame with pixel values of zero
- */
-void ia_css_frame_zero(struct ia_css_frame *frame);
-
/* @brief Allocate a CSS frame structure
*
* @param frame The allocated frame.
void
ia_css_frame_free(struct ia_css_frame *frame);
-/* @brief Allocate a CSS frame structure using a frame info structure.
- *
- * @param frame The allocated frame.
- * @param[in] info The frame info structure.
- * @return The error code.
- *
- * Allocate an empty CSS frame with no data buffer using the parameters
- * in the frame info.
- */
-int
-ia_css_frame_create_from_info(struct ia_css_frame **frame,
- const struct ia_css_frame_info *info);
-
-/* @brief Set a mapped data buffer to a CSS frame
- *
- * @param[in] frame Valid CSS frame pointer
- * @param[in] mapped_data Mapped data buffer to be assigned to the CSS frame
- * @param[in] data_size_bytes Size of the mapped_data in bytes
- * @return The error code.
- *
- * Sets a mapped data buffer to this frame. This function can be called multiple
- * times with different buffers or NULL to reset the data pointer. This API
- * would not try free the mapped_data and its the callers responsiblity to
- * free the mapped_data buffer. However if ia_css_frame_free() is called and
- * the frame had a valid data buffer, it would be freed along with the frame.
- */
-int
-ia_css_frame_set_data(struct ia_css_frame *frame,
- const ia_css_ptr mapped_data,
- size_t data_size_bytes);
-
-/* @brief Map an existing frame data pointer to a CSS frame.
- *
- * @param frame Pointer to the frame to be initialized
- * @param[in] info The frame info.
- * @param[in] data Pointer to the allocated frame data.
- * @param[in] attribute Attributes to be passed to mmgr_mmap.
- * @param[in] context Pointer to the a context to be passed to mmgr_mmap.
- * @return The allocated frame structure.
- *
- * This function maps a pre-allocated pointer into a CSS frame. This can be
- * used when an upper software layer is responsible for allocating the frame
- * data and it wants to share that frame pointer with the CSS code.
- * This function will fill the CSS frame structure just like
- * ia_css_frame_allocate() does, but instead of allocating the memory, it will
- * map the pre-allocated memory into the CSS address space.
- */
-int
-ia_css_frame_map(struct ia_css_frame **frame,
- const struct ia_css_frame_info *info,
- const void __user *data,
- unsigned int pgnr);
-
-/* @brief Unmap a CSS frame structure.
- *
- * @param[in] frame Pointer to the CSS frame.
- * @return None
- *
- * This function unmaps the frame data pointer within a CSS frame and
- * then frees the CSS frame structure. Use this for frame pointers created
- * using ia_css_frame_map().
- */
-void
-ia_css_frame_unmap(struct ia_css_frame *frame);
-
static inline const struct ia_css_frame_info *
ia_css_frame_get_info(const struct ia_css_frame *frame)
{
** CSS API functions, exposed by ia_css.h
**************************************************************************/
-void ia_css_frame_zero(struct ia_css_frame *frame)
-{
- assert(frame);
- hmm_set(frame->data, 0, frame->data_bytes);
-}
-
int ia_css_frame_allocate_from_info(struct ia_css_frame **frame,
const struct ia_css_frame_info *info)
{
return err;
}
-int ia_css_frame_map(struct ia_css_frame **frame,
- const struct ia_css_frame_info *info,
- const void __user *data,
- unsigned int pgnr)
-{
- int err = 0;
- struct ia_css_frame *me;
-
- assert(frame);
-
- /* Create the frame structure */
- err = ia_css_frame_create_from_info(&me, info);
-
- if (err)
- return err;
-
- if (pgnr < ((PAGE_ALIGN(me->data_bytes)) >> PAGE_SHIFT)) {
- dev_err(atomisp_dev,
- "user space memory size is less than the expected size..\n");
- err = -ENOMEM;
- goto error;
- } else if (pgnr > ((PAGE_ALIGN(me->data_bytes)) >> PAGE_SHIFT)) {
- dev_err(atomisp_dev,
- "user space memory size is large than the expected size..\n");
- err = -ENOMEM;
- goto error;
- }
-
- me->data = hmm_create_from_userdata(me->data_bytes, data);
- if (me->data == mmgr_NULL)
- err = -EINVAL;
-
-error:
- if (err) {
- kvfree(me);
- me = NULL;
- }
-
- *frame = me;
-
- return err;
-}
-
-int ia_css_frame_create_from_info(struct ia_css_frame **frame,
- const struct ia_css_frame_info *info)
-{
- int err = 0;
- struct ia_css_frame *me;
-
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_create_from_info() enter:\n");
- if (!frame || !info) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_create_from_info() leave: invalid arguments\n");
- return -EINVAL;
- }
-
- me = frame_create(info->res.width,
- info->res.height,
- info->format,
- info->padded_width,
- info->raw_bit_depth,
- false);
- if (!me) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_create_from_info() leave: frame create failed\n");
- return -ENOMEM;
- }
-
- err = ia_css_frame_init_planes(me);
-
- if (err) {
- kvfree(me);
- me = NULL;
- }
-
- *frame = me;
-
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_create_from_info() leave:\n");
-
- return err;
-}
-
-int ia_css_frame_set_data(struct ia_css_frame *frame,
- const ia_css_ptr mapped_data,
- size_t data_bytes)
-{
- int err = 0;
-
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_set_data() enter:\n");
- if (!frame) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_set_data() leave: NULL frame\n");
- return -EINVAL;
- }
-
- /* If we are setting a valid data.
- * Make sure that there is enough
- * room for the expected frame format
- */
- if ((mapped_data != mmgr_NULL) && (frame->data_bytes > data_bytes)) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- "ia_css_frame_set_data() leave: invalid arguments\n");
- return -EINVAL;
- }
-
- frame->data = mapped_data;
-
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_frame_set_data() leave:\n");
-
- return err;
-}
-
void ia_css_frame_free(struct ia_css_frame *frame)
{
IA_CSS_ENTER_PRIVATE("frame = %p", frame);
projects / platform / kernel / linux-starfive.git / commitdiff