diff options
Diffstat (limited to 'drivers/media/video/tiler/_tiler.h')
| -rw-r--r-- | drivers/media/video/tiler/_tiler.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/media/video/tiler/_tiler.h b/drivers/media/video/tiler/_tiler.h new file mode 100644 index 00000000000..aeec9f6de6e --- /dev/null +++ b/drivers/media/video/tiler/_tiler.h @@ -0,0 +1,148 @@ +/* + * _tiler.h + * + * TI TILER driver internal shared definitions. + * + * Author: Lajos Molnar <molnar@ti.com> + * + * Copyright (C) 2009-2010 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef _TILER_H +#define _TILER_H + +#include <linux/kernel.h> +#include <mach/tiler.h> +#include "tcm.h" + +#define TILER_FORMATS (TILFMT_MAX - TILFMT_MIN + 1) + +/* per process (thread group) info */ +struct process_info { + struct list_head list; /* other processes */ + struct list_head groups; /* my groups */ + struct list_head bufs; /* my registered buffers */ + pid_t pid; /* really: thread group ID */ + u32 refs; /* open tiler devices, 0 for processes + tracked via kernel APIs */ + bool kernel; /* tracking kernel objects */ +}; + +/* per group info (within a process) */ +struct gid_info { + struct list_head by_pid; /* other groups */ + struct list_head areas; /* all areas in this pid/gid */ + struct list_head reserved; /* areas pre-reserved */ + struct list_head onedim; /* all 1D areas in this pid/gid */ + u32 gid; /* group ID */ + int refs; /* instances directly using this ptr */ + struct process_info *pi; /* parent */ +}; + +/* info for an area reserved from a container */ +struct area_info { + struct list_head by_gid; /* areas in this pid/gid */ + struct list_head blocks; /* blocks in this area */ + u32 nblocks; /* # of blocks in this area */ + + struct tcm_area area; /* area details */ + struct gid_info *gi; /* link to parent, if still alive */ +}; + +/* info for a block */ +struct mem_info { + struct list_head global; /* reserved / global blocks */ + struct tiler_block_t blk; /* block info */ + u32 num_pg; /* number of pages in page-list */ + u32 usr; /* user space address */ + u32 *pg_ptr; /* list of mapped struct page ptrs */ + struct tcm_area area; + u32 *mem; /* list of alloced phys addresses */ + int refs; /* number of times referenced */ + bool alloced; /* still alloced */ + + struct list_head by_area; /* blocks in the same area / 1D */ + void *parent; /* area info for 2D, else group info */ +}; + +/* tiler geometry information */ +struct tiler_geom { + u32 x_shft; /* unused X-bits (as part of bpp) */ + u32 y_shft; /* unused Y-bits (as part of bpp) */ + u32 bpp; /* bytes per pixel */ + u32 slot_w; /* width of each slot (in pixels) */ + u32 slot_h; /* height of each slot (in pixels) */ + u32 bpp_m; /* modified bytes per pixel (=1 for page mode) */ +}; + +/* methods and variables shared between source files */ +struct tiler_ops { + /* block operations */ + s32 (*alloc) (enum tiler_fmt fmt, u32 width, u32 height, + u32 align, u32 offs, u32 key, + u32 gid, struct process_info *pi, + struct mem_info **info); + s32 (*map) (enum tiler_fmt fmt, u32 width, u32 height, + u32 key, u32 gid, struct process_info *pi, + struct mem_info **info, u32 usr_addr); + void (*reserve_nv12) (u32 n, u32 width, u32 height, u32 align, u32 offs, + u32 gid, struct process_info *pi); + void (*reserve) (u32 n, enum tiler_fmt fmt, u32 width, u32 height, + u32 align, u32 offs, u32 gid, struct process_info *pi); + void (*unreserve) (u32 gid, struct process_info *pi); + + /* block access operations */ + struct mem_info * (*lock) (u32 key, u32 id, struct gid_info *gi); + struct mem_info * (*lock_by_ssptr) (u32 sys_addr); + void (*describe) (struct mem_info *i, struct tiler_block_info *blk); + void (*unlock_free) (struct mem_info *mi, bool free); + + s32 (*lay_2d) (enum tiler_fmt fmt, u16 n, u16 w, u16 h, u16 band, + u16 align, u16 offs, struct gid_info *gi, + struct list_head *pos); + s32 (*lay_nv12) (int n, u16 w, u16 w1, u16 h, struct gid_info *gi, + u8 *p); + /* group operations */ + struct gid_info * (*get_gi) (struct process_info *pi, u32 gid); + void (*release_gi) (struct gid_info *gi); + void (*destroy_group) (struct gid_info *pi); + + /* group access operations */ + void (*add_reserved) (struct list_head *reserved, struct gid_info *gi); + void (*release) (struct list_head *reserved); + + /* area operations */ + s32 (*analize) (enum tiler_fmt fmt, u32 width, u32 height, + u16 *x_area, u16 *y_area, u16 *band, + u16 *align, u16 *offs, u16 *in_offs); + + /* process operations */ + void (*cleanup) (void); + + /* geometry operations */ + void (*xy) (u32 ssptr, u32 *x, u32 *y); + u32 (*addr) (enum tiler_fmt fmt, u32 x, u32 y); + const struct tiler_geom * (*geom) (enum tiler_fmt fmt); + + /* additional info */ + const struct file_operations *fops; + + bool nv12_packed; /* whether NV12 is packed into same container */ + u32 page; /* page size */ + u32 width; /* container width */ + u32 height; /* container height */ +}; + +void tiler_iface_init(struct tiler_ops *tiler); +void tiler_geom_init(struct tiler_ops *tiler); +void tiler_reserve_init(struct tiler_ops *tiler); + +#endif |