diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/ia_css_frame_public.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/ia_css_frame_public.h | 108 |
1 files changed, 33 insertions, 75 deletions
diff --git a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h index 514d933f934d..7ba464abf447 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h +++ b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h @@ -20,6 +20,7 @@ * This file contains structs to describe various frame-formats supported by the ISP. */ +#include <media/videobuf2-v4l2.h> #include <type_support.h> #include "ia_css_err.h" #include "ia_css_types.h" @@ -146,7 +147,18 @@ enum ia_css_frame_flash_state { * This is the main structure used for all input and output images. */ struct ia_css_frame { - struct ia_css_frame_info info; /** info struct describing the frame */ + /* + * The videobuf2 core will allocate buffers including room for private + * data (the rest of struct ia_css_frame). The vb2_v4l2_buffer must + * be the first member for this to work! + * Note the atomisp code also uses ia_css_frame-s which are not used + * as v4l2-buffers in some places. In this case the vb2 member will + * be unused. + */ + struct vb2_v4l2_buffer vb; + /* List-head for linking into the activeq or buffers_waiting_for_param list */ + struct list_head queue; + struct ia_css_frame_info frame_info; /** info struct describing the frame */ ia_css_ptr data; /** pointer to start of image data */ unsigned int data_bytes; /** size of image data in bytes */ /* LA: move this to ia_css_buffer */ @@ -183,22 +195,16 @@ struct ia_css_frame { info.format */ }; +#define vb_to_frame(vb2) \ + container_of(to_vb2_v4l2_buffer(vb2), struct ia_css_frame, vb) + #define DEFAULT_FRAME { \ - .info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ + .frame_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ .dynamic_queue_id = SH_CSS_INVALID_QUEUE_ID, \ .buf_type = IA_CSS_BUFFER_TYPE_INVALID, \ .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. @@ -220,6 +226,17 @@ ia_css_frame_allocate(struct ia_css_frame **frame, unsigned int stride, unsigned int raw_bit_depth); +/* @brief Initialize 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. + * + * Initialize a frame using the resolution and format from a frame info struct. + */ +int ia_css_frame_init_from_info(struct ia_css_frame *frame, + const struct ia_css_frame_info *info); + /* @brief Allocate a CSS frame structure using a frame info structure. * * @param frame The allocated frame. @@ -244,69 +261,10 @@ ia_css_frame_allocate_from_info(struct ia_css_frame **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) +{ + return frame ? &frame->frame_info : NULL; +} #endif /* __IA_CSS_FRAME_PUBLIC_H */ |