Vaibhav Hiremath | 5c7ab63 | 2010-04-11 10:41:49 -0300 | [diff] [blame] | 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 | |
Tomi Valkeinen | a0b38cc | 2011-05-11 14:05:07 +0300 | [diff] [blame] | 14 | #include <video/omapdss.h> |
Vaibhav Hiremath | 5c7ab63 | 2010-04-11 10:41:49 -0300 | [diff] [blame] | 15 | |
| 16 | #define YUYV_BPP 2 |
| 17 | #define RGB565_BPP 2 |
| 18 | #define RGB24_BPP 3 |
| 19 | #define RGB32_BPP 4 |
| 20 | #define TILE_SIZE 32 |
| 21 | #define YUYV_VRFB_BPP 2 |
| 22 | #define RGB_VRFB_BPP 1 |
| 23 | #define MAX_CID 3 |
| 24 | #define MAC_VRFB_CTXS 4 |
| 25 | #define MAX_VOUT_DEV 2 |
| 26 | #define MAX_OVLS 3 |
| 27 | #define MAX_DISPLAYS 3 |
| 28 | #define MAX_MANAGERS 3 |
| 29 | |
archit taneja | a137ac8 | 2011-06-14 03:54:45 -0300 | [diff] [blame] | 30 | #define QQVGA_WIDTH 160 |
| 31 | #define QQVGA_HEIGHT 120 |
| 32 | |
| 33 | /* Max Resolution supported by the driver */ |
| 34 | #define VID_MAX_WIDTH 1280 /* Largest width */ |
| 35 | #define VID_MAX_HEIGHT 720 /* Largest height */ |
| 36 | |
| 37 | /* Mimimum requirement is 2x2 for DSS */ |
| 38 | #define VID_MIN_WIDTH 2 |
| 39 | #define VID_MIN_HEIGHT 2 |
| 40 | |
| 41 | /* 2048 x 2048 is max res supported by OMAP display controller */ |
| 42 | #define MAX_PIXELS_PER_LINE 2048 |
| 43 | |
| 44 | #define VRFB_TX_TIMEOUT 1000 |
| 45 | #define VRFB_NUM_BUFS 4 |
| 46 | |
| 47 | /* Max buffer size tobe allocated during init */ |
| 48 | #define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4) |
| 49 | |
| 50 | enum dma_channel_state { |
| 51 | DMA_CHAN_NOT_ALLOTED, |
| 52 | DMA_CHAN_ALLOTED, |
| 53 | }; |
| 54 | |
Vaibhav Hiremath | 5c7ab63 | 2010-04-11 10:41:49 -0300 | [diff] [blame] | 55 | /* Enum for Rotation |
| 56 | * DSS understands rotation in 0, 1, 2, 3 context |
| 57 | * while V4L2 driver understands it as 0, 90, 180, 270 |
| 58 | */ |
| 59 | enum dss_rotation { |
| 60 | dss_rotation_0_degree = 0, |
| 61 | dss_rotation_90_degree = 1, |
| 62 | dss_rotation_180_degree = 2, |
| 63 | dss_rotation_270_degree = 3, |
| 64 | }; |
| 65 | /* |
| 66 | * This structure is used to store the DMA transfer parameters |
| 67 | * for VRFB hidden buffer |
| 68 | */ |
| 69 | struct vid_vrfb_dma { |
| 70 | int dev_id; |
| 71 | int dma_ch; |
| 72 | int req_status; |
| 73 | int tx_status; |
| 74 | wait_queue_head_t wait; |
| 75 | }; |
| 76 | |
| 77 | struct omapvideo_info { |
| 78 | int id; |
| 79 | int num_overlays; |
| 80 | struct omap_overlay *overlays[MAX_OVLS]; |
| 81 | }; |
| 82 | |
| 83 | struct omap2video_device { |
| 84 | struct mutex mtx; |
| 85 | |
| 86 | int state; |
| 87 | |
| 88 | struct v4l2_device v4l2_dev; |
| 89 | struct omap_vout_device *vouts[MAX_VOUT_DEV]; |
| 90 | |
| 91 | int num_displays; |
| 92 | struct omap_dss_device *displays[MAX_DISPLAYS]; |
| 93 | int num_overlays; |
| 94 | struct omap_overlay *overlays[MAX_OVLS]; |
| 95 | int num_managers; |
| 96 | struct omap_overlay_manager *managers[MAX_MANAGERS]; |
| 97 | }; |
| 98 | |
| 99 | /* per-device data structure */ |
| 100 | struct omap_vout_device { |
| 101 | |
| 102 | struct omapvideo_info vid_info; |
| 103 | struct video_device *vfd; |
| 104 | struct omap2video_device *vid_dev; |
| 105 | int vid; |
| 106 | int opened; |
| 107 | |
| 108 | /* we don't allow to change image fmt/size once buffer has |
| 109 | * been allocated |
| 110 | */ |
| 111 | int buffer_allocated; |
| 112 | /* allow to reuse previously allocated buffer which is big enough */ |
| 113 | int buffer_size; |
| 114 | /* keep buffer info across opens */ |
| 115 | unsigned long buf_virt_addr[VIDEO_MAX_FRAME]; |
| 116 | unsigned long buf_phy_addr[VIDEO_MAX_FRAME]; |
| 117 | enum omap_color_mode dss_mode; |
| 118 | |
| 119 | /* we don't allow to request new buffer when old buffers are |
| 120 | * still mmaped |
| 121 | */ |
| 122 | int mmap_count; |
| 123 | |
| 124 | spinlock_t vbq_lock; /* spinlock for videobuf queues */ |
| 125 | unsigned long field_count; /* field counter for videobuf_buffer */ |
| 126 | |
| 127 | /* non-NULL means streaming is in progress. */ |
| 128 | bool streaming; |
| 129 | |
| 130 | struct v4l2_pix_format pix; |
| 131 | struct v4l2_rect crop; |
| 132 | struct v4l2_window win; |
| 133 | struct v4l2_framebuffer fbuf; |
| 134 | |
| 135 | /* Lock to protect the shared data structures in ioctl */ |
| 136 | struct mutex lock; |
| 137 | |
| 138 | /* V4L2 control structure for different control id */ |
| 139 | struct v4l2_control control[MAX_CID]; |
| 140 | enum dss_rotation rotation; |
| 141 | bool mirror; |
| 142 | int flicker_filter; |
| 143 | /* V4L2 control structure for different control id */ |
| 144 | |
| 145 | int bpp; /* bytes per pixel */ |
| 146 | int vrfb_bpp; /* bytes per pixel with respect to VRFB */ |
| 147 | |
| 148 | struct vid_vrfb_dma vrfb_dma_tx; |
| 149 | unsigned int smsshado_phy_addr[MAC_VRFB_CTXS]; |
| 150 | unsigned int smsshado_virt_addr[MAC_VRFB_CTXS]; |
| 151 | struct vrfb vrfb_context[MAC_VRFB_CTXS]; |
| 152 | bool vrfb_static_allocation; |
| 153 | unsigned int smsshado_size; |
| 154 | unsigned char pos; |
| 155 | |
| 156 | int ps, vr_ps, line_length, first_int, field_id; |
| 157 | enum v4l2_memory memory; |
| 158 | struct videobuf_buffer *cur_frm, *next_frm; |
| 159 | struct list_head dma_queue; |
| 160 | u8 *queued_buf_addr[VIDEO_MAX_FRAME]; |
| 161 | u32 cropped_offset; |
| 162 | s32 tv_field1_offset; |
| 163 | void *isr_handle; |
| 164 | |
| 165 | /* Buffer queue variables */ |
| 166 | struct omap_vout_device *vout; |
| 167 | enum v4l2_buf_type type; |
| 168 | struct videobuf_queue vbq; |
| 169 | int io_allowed; |
| 170 | |
| 171 | }; |
archit taneja | a137ac8 | 2011-06-14 03:54:45 -0300 | [diff] [blame] | 172 | |
| 173 | /* |
| 174 | * Return true if rotation is 90 or 270 |
| 175 | */ |
archit taneja | b366888 | 2011-06-14 03:54:46 -0300 | [diff] [blame^] | 176 | static inline int is_rotation_90_or_270(const struct omap_vout_device *vout) |
archit taneja | a137ac8 | 2011-06-14 03:54:45 -0300 | [diff] [blame] | 177 | { |
| 178 | return (vout->rotation == dss_rotation_90_degree || |
| 179 | vout->rotation == dss_rotation_270_degree); |
| 180 | } |
| 181 | |
| 182 | /* |
| 183 | * Return true if rotation is enabled |
| 184 | */ |
archit taneja | b366888 | 2011-06-14 03:54:46 -0300 | [diff] [blame^] | 185 | static inline int is_rotation_enabled(const struct omap_vout_device *vout) |
archit taneja | a137ac8 | 2011-06-14 03:54:45 -0300 | [diff] [blame] | 186 | { |
| 187 | return vout->rotation || vout->mirror; |
| 188 | } |
| 189 | |
| 190 | /* |
| 191 | * Reverse the rotation degree if mirroring is enabled |
| 192 | */ |
| 193 | static inline int calc_rotation(const struct omap_vout_device *vout) |
| 194 | { |
| 195 | if (!vout->mirror) |
| 196 | return vout->rotation; |
| 197 | |
| 198 | switch (vout->rotation) { |
| 199 | case dss_rotation_90_degree: |
| 200 | return dss_rotation_270_degree; |
| 201 | case dss_rotation_270_degree: |
| 202 | return dss_rotation_90_degree; |
| 203 | case dss_rotation_180_degree: |
| 204 | return dss_rotation_0_degree; |
| 205 | default: |
| 206 | return dss_rotation_180_degree; |
| 207 | } |
| 208 | } |
Vaibhav Hiremath | 5c7ab63 | 2010-04-11 10:41:49 -0300 | [diff] [blame] | 209 | #endif /* ifndef OMAP_VOUTDEF_H */ |