220 lines · c
1/*2 * omap_voutdef.h3 *4 * Copyright (C) 2010 Texas Instruments.5 *6 * This file is licensed under the terms of the GNU General Public License7 * version 2. This program is licensed "as is" without any warranty of any8 * kind, whether express or implied.9 */10 11#ifndef OMAP_VOUTDEF_H12#define OMAP_VOUTDEF_H13 14#include <media/videobuf2-dma-contig.h>15#include <media/v4l2-ctrls.h>16#include <video/omapfb_dss.h>17#include <video/omapvrfb.h>18#include <linux/dmaengine.h>19 20#define YUYV_BPP 221#define RGB565_BPP 222#define RGB24_BPP 323#define RGB32_BPP 424#define TILE_SIZE 3225#define YUYV_VRFB_BPP 226#define RGB_VRFB_BPP 127#define MAX_CID 328#define MAC_VRFB_CTXS 429#define MAX_VOUT_DEV 230#define MAX_OVLS 331#define MAX_DISPLAYS 1032#define MAX_MANAGERS 333 34#define QQVGA_WIDTH 16035#define QQVGA_HEIGHT 12036 37/* Max Resolution supported by the driver */38#define VID_MAX_WIDTH 1280 /* Largest width */39#define VID_MAX_HEIGHT 720 /* Largest height */40 41/* Minimum requirement is 2x2 for DSS */42#define VID_MIN_WIDTH 243#define VID_MIN_HEIGHT 244 45/* 2048 x 2048 is max res supported by OMAP display controller */46#define MAX_PIXELS_PER_LINE 204847 48#define VRFB_TX_TIMEOUT 100049#define VRFB_NUM_BUFS 450 51/* Max buffer size tobe allocated during init */52#define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4)53 54enum dma_channel_state {55 DMA_CHAN_NOT_ALLOTED,56 DMA_CHAN_ALLOTED,57};58 59/* Enum for Rotation60 * DSS understands rotation in 0, 1, 2, 3 context61 * while V4L2 driver understands it as 0, 90, 180, 27062 */63enum dss_rotation {64 dss_rotation_0_degree = 0,65 dss_rotation_90_degree = 1,66 dss_rotation_180_degree = 2,67 dss_rotation_270_degree = 3,68};69 70/* Enum for choosing rotation type for vout71 * DSS2 doesn't understand no rotation as an72 * option while V4L2 driver doesn't support73 * rotation in the case where VRFB is not built in74 * the kernel75 */76enum vout_rotaion_type {77 VOUT_ROT_NONE = 0,78 VOUT_ROT_VRFB = 1,79};80 81/*82 * This structure is used to store the DMA transfer parameters83 * for VRFB hidden buffer84 */85struct vid_vrfb_dma {86 struct dma_chan *chan;87 struct dma_interleaved_template *xt;88 89 int req_status;90 int tx_status;91 wait_queue_head_t wait;92};93 94struct omapvideo_info {95 int id;96 int num_overlays;97 struct omap_overlay *overlays[MAX_OVLS];98 enum vout_rotaion_type rotation_type;99};100 101struct omap2video_device {102 struct mutex mtx;103 104 int state;105 106 struct v4l2_device v4l2_dev;107 struct omap_vout_device *vouts[MAX_VOUT_DEV];108 109 int num_displays;110 struct omap_dss_device *displays[MAX_DISPLAYS];111 int num_overlays;112 struct omap_overlay *overlays[MAX_OVLS];113 int num_managers;114 struct omap_overlay_manager *managers[MAX_MANAGERS];115};116 117/* buffer for one video frame */118struct omap_vout_buffer {119 /* common v4l buffer stuff -- must be first */120 struct vb2_v4l2_buffer vbuf;121 struct list_head queue;122};123 124static inline struct omap_vout_buffer *vb2_to_omap_vout_buffer(struct vb2_buffer *vb)125{126 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);127 128 return container_of(vbuf, struct omap_vout_buffer, vbuf);129}130 131/* per-device data structure */132struct omap_vout_device {133 134 struct omapvideo_info vid_info;135 struct video_device *vfd;136 struct omap2video_device *vid_dev;137 struct v4l2_ctrl_handler ctrl_handler;138 int vid;139 140 /* allow to reuse previously allocated buffer which is big enough */141 int buffer_size;142 enum omap_color_mode dss_mode;143 144 u32 sequence;145 146 struct v4l2_pix_format pix;147 struct v4l2_rect crop;148 struct v4l2_window win;149 struct v4l2_framebuffer fbuf;150 151 /* Lock to protect the shared data structures in ioctl */152 struct mutex lock;153 154 enum dss_rotation rotation;155 bool mirror;156 int flicker_filter;157 158 int bpp; /* bytes per pixel */159 int vrfb_bpp; /* bytes per pixel with respect to VRFB */160 161 struct vid_vrfb_dma vrfb_dma_tx;162 unsigned int smsshado_phy_addr[MAC_VRFB_CTXS];163 unsigned int smsshado_virt_addr[MAC_VRFB_CTXS];164 struct vrfb vrfb_context[MAC_VRFB_CTXS];165 bool vrfb_static_allocation;166 unsigned int smsshado_size;167 unsigned char pos;168 169 int ps, vr_ps, line_length, first_int, field_id;170 struct omap_vout_buffer *cur_frm, *next_frm;171 spinlock_t vbq_lock; /* spinlock for dma_queue */172 struct list_head dma_queue;173 dma_addr_t queued_buf_addr[VIDEO_MAX_FRAME];174 u32 cropped_offset;175 s32 tv_field1_offset;176 void *isr_handle;177 struct vb2_queue vq;178 179};180 181/*182 * Return true if rotation is 90 or 270183 */184static inline int is_rotation_90_or_270(const struct omap_vout_device *vout)185{186 return (vout->rotation == dss_rotation_90_degree ||187 vout->rotation == dss_rotation_270_degree);188}189 190/*191 * Return true if rotation is enabled192 */193static inline int is_rotation_enabled(const struct omap_vout_device *vout)194{195 return vout->rotation || vout->mirror;196}197 198/*199 * Reverse the rotation degree if mirroring is enabled200 */201static inline int calc_rotation(const struct omap_vout_device *vout)202{203 if (!vout->mirror)204 return vout->rotation;205 206 switch (vout->rotation) {207 case dss_rotation_90_degree:208 return dss_rotation_270_degree;209 case dss_rotation_270_degree:210 return dss_rotation_90_degree;211 case dss_rotation_180_degree:212 return dss_rotation_0_degree;213 default:214 return dss_rotation_180_degree;215 }216}217 218void omap_vout_free_buffers(struct omap_vout_device *vout);219#endif /* ifndef OMAP_VOUTDEF_H */220