omap_voutdef.h (5264B)
1/* 2 * omap_voutdef.h 3 * 4 * Copyright (C) 2010 Texas Instruments. 5 * 6 * This file is licensed under the terms of the GNU General Public License 7 * version 2. This program is licensed "as is" without any warranty of any 8 * kind, whether express or implied. 9 */ 10 11#ifndef OMAP_VOUTDEF_H 12#define OMAP_VOUTDEF_H 13 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 2 21#define RGB565_BPP 2 22#define RGB24_BPP 3 23#define RGB32_BPP 4 24#define TILE_SIZE 32 25#define YUYV_VRFB_BPP 2 26#define RGB_VRFB_BPP 1 27#define MAX_CID 3 28#define MAC_VRFB_CTXS 4 29#define MAX_VOUT_DEV 2 30#define MAX_OVLS 3 31#define MAX_DISPLAYS 10 32#define MAX_MANAGERS 3 33 34#define QQVGA_WIDTH 160 35#define QQVGA_HEIGHT 120 36 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 2 43#define VID_MIN_HEIGHT 2 44 45/* 2048 x 2048 is max res supported by OMAP display controller */ 46#define MAX_PIXELS_PER_LINE 2048 47 48#define VRFB_TX_TIMEOUT 1000 49#define VRFB_NUM_BUFS 4 50 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 Rotation 60 * DSS understands rotation in 0, 1, 2, 3 context 61 * while V4L2 driver understands it as 0, 90, 180, 270 62 */ 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 vout 71 * DSS2 doesn't understand no rotation as an 72 * option while V4L2 driver doesn't support 73 * rotation in the case where VRFB is not built in 74 * the kernel 75 */ 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 parameters 83 * for VRFB hidden buffer 84 */ 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 270 183 */ 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 enabled 192 */ 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 enabled 200 */ 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 */