1 #ifndef __SAA7146_VV__ 2 #define __SAA7146_VV__ 3 4 #include <media/v4l2-common.h> 5 #include <media/v4l2-ioctl.h> 6 #include <media/saa7146.h> 7 #include <media/videobuf-dma-sg.h> 8 9 #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ 10 #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ 11 12 #define WRITE_RPS0(x) do { \ 13 dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \ 14 } while (0); 15 16 #define WRITE_RPS1(x) do { \ 17 dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \ 18 } while (0); 19 20 struct saa7146_video_dma { 21 u32 base_odd; 22 u32 base_even; 23 u32 prot_addr; 24 u32 pitch; 25 u32 base_page; 26 u32 num_line_byte; 27 }; 28 29 #define FORMAT_BYTE_SWAP 0x1 30 #define FORMAT_IS_PLANAR 0x2 31 32 struct saa7146_format { 33 char *name; 34 u32 pixelformat; 35 u32 trans; 36 u8 depth; 37 u8 flags; 38 u8 swap; 39 }; 40 41 struct saa7146_standard 42 { 43 char *name; 44 v4l2_std_id id; 45 46 int v_offset; /* number of lines of vertical offset before processing */ 47 int v_field; /* number of lines in a field for HPS to process */ 48 49 int h_offset; /* horizontal offset of processing window */ 50 int h_pixels; /* number of horizontal pixels to process */ 51 52 int v_max_out; 53 int h_max_out; 54 }; 55 56 /* buffer for one video/vbi frame */ 57 struct saa7146_buf { 58 /* common v4l buffer stuff -- must be first */ 59 struct videobuf_buffer vb; 60 61 /* saa7146 specific */ 62 struct v4l2_pix_format *fmt; 63 int (*activate)(struct saa7146_dev *dev, 64 struct saa7146_buf *buf, 65 struct saa7146_buf *next); 66 67 /* page tables */ 68 struct saa7146_pgtable pt[3]; 69 }; 70 71 struct saa7146_dmaqueue { 72 struct saa7146_dev *dev; 73 struct saa7146_buf *curr; 74 struct list_head queue; 75 struct timer_list timeout; 76 }; 77 78 struct saa7146_overlay { 79 struct saa7146_fh *fh; 80 struct v4l2_window win; 81 struct v4l2_clip clips[16]; 82 int nclips; 83 }; 84 85 /* per open data */ 86 struct saa7146_fh { 87 struct saa7146_dev *dev; 88 /* if this is a vbi or capture open */ 89 enum v4l2_buf_type type; 90 91 /* video overlay */ 92 struct saa7146_overlay ov; 93 94 /* video capture */ 95 struct videobuf_queue video_q; 96 struct v4l2_pix_format video_fmt; 97 98 /* vbi capture */ 99 struct videobuf_queue vbi_q; 100 struct v4l2_vbi_format vbi_fmt; 101 struct timer_list vbi_read_timeout; 102 103 unsigned int resources; /* resource management for device open */ 104 }; 105 106 #define STATUS_OVERLAY 0x01 107 #define STATUS_CAPTURE 0x02 108 109 struct saa7146_vv 110 { 111 int vbi_minor; 112 113 /* vbi capture */ 114 struct saa7146_dmaqueue vbi_q; 115 /* vbi workaround interrupt queue */ 116 wait_queue_head_t vbi_wq; 117 int vbi_fieldcount; 118 struct saa7146_fh *vbi_streaming; 119 120 int video_minor; 121 122 int video_status; 123 struct saa7146_fh *video_fh; 124 125 /* video overlay */ 126 struct v4l2_framebuffer ov_fb; 127 struct saa7146_format *ov_fmt; 128 struct saa7146_overlay *ov_data; 129 struct saa7146_fh *ov_suspend; 130 131 /* video capture */ 132 struct saa7146_dmaqueue video_q; 133 enum v4l2_field last_field; 134 135 /* common: fixme? shouldn't this be in saa7146_fh? 136 (this leads to a more complicated question: shall the driver 137 store the different settings (for example S_INPUT) for every open 138 and restore it appropriately, or should all settings be common for 139 all opens? currently, we do the latter, like all other 140 drivers do... */ 141 struct saa7146_standard *standard; 142 143 int vflip; 144 int hflip; 145 int current_hps_source; 146 int current_hps_sync; 147 148 struct saa7146_dma d_clipping; /* pointer to clipping memory */ 149 150 unsigned int resources; /* resource management for device */ 151 }; 152 153 #define SAA7146_EXCLUSIVE 0x1 154 #define SAA7146_BEFORE 0x2 155 #define SAA7146_AFTER 0x4 156 157 struct saa7146_extension_ioctls 158 { 159 unsigned int cmd; 160 int flags; 161 }; 162 163 /* flags */ 164 #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ 165 166 struct saa7146_ext_vv 167 { 168 /* informations about the video capabilities of the device */ 169 int inputs; 170 int audios; 171 u32 capabilities; 172 int flags; 173 174 /* additionally supported transmission standards */ 175 struct saa7146_standard *stds; 176 int num_stds; 177 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); 178 179 struct saa7146_extension_ioctls *ioctls; 180 long (*ioctl)(struct saa7146_fh *, unsigned int cmd, void *arg); 181 182 struct v4l2_file_operations vbi_fops; 183 }; 184 185 struct saa7146_use_ops { 186 void (*init)(struct saa7146_dev *, struct saa7146_vv *); 187 int(*open)(struct saa7146_dev *, struct file *); 188 void (*release)(struct saa7146_dev *, struct file *); 189 void (*irq_done)(struct saa7146_dev *, unsigned long status); 190 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); 191 }; 192 193 /* from saa7146_fops.c */ 194 int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type); 195 int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev); 196 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state); 197 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi); 198 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf); 199 void saa7146_buffer_timeout(unsigned long data); 200 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q, 201 struct saa7146_buf *buf); 202 203 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv); 204 int saa7146_vv_release(struct saa7146_dev* dev); 205 206 /* from saa7146_hlp.c */ 207 int saa7146_enable_overlay(struct saa7146_fh *fh); 208 void saa7146_disable_overlay(struct saa7146_fh *fh); 209 210 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); 211 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ; 212 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync); 213 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data); 214 215 /* from saa7146_video.c */ 216 extern struct saa7146_use_ops saa7146_video_uops; 217 int saa7146_start_preview(struct saa7146_fh *fh); 218 int saa7146_stop_preview(struct saa7146_fh *fh); 219 long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg); 220 221 /* from saa7146_vbi.c */ 222 extern struct saa7146_use_ops saa7146_vbi_uops; 223 224 /* resource management functions */ 225 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit); 226 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); 227 228 #define RESOURCE_DMA1_HPS 0x1 229 #define RESOURCE_DMA2_CLP 0x2 230 #define RESOURCE_DMA3_BRS 0x4 231 232 /* saa7146 source inputs */ 233 #define SAA7146_HPS_SOURCE_PORT_A 0x00 234 #define SAA7146_HPS_SOURCE_PORT_B 0x01 235 #define SAA7146_HPS_SOURCE_YPB_CPA 0x02 236 #define SAA7146_HPS_SOURCE_YPA_CPB 0x03 237 238 /* sync inputs */ 239 #define SAA7146_HPS_SYNC_PORT_A 0x00 240 #define SAA7146_HPS_SYNC_PORT_B 0x01 241 242 /* some memory sizes */ 243 /* max. 16 clipping rectangles */ 244 #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) 245 246 /* some defines for the various clipping-modes */ 247 #define SAA7146_CLIPPING_RECT 0x4 248 #define SAA7146_CLIPPING_RECT_INVERTED 0x5 249 #define SAA7146_CLIPPING_MASK 0x6 250 #define SAA7146_CLIPPING_MASK_INVERTED 0x7 251 252 /* output formats: each entry holds four informations */ 253 #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */ 254 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */ 255 #define RGB15_COMPOSED 0x0213 256 #define RGB16_COMPOSED 0x0210 257 #define RGB24_COMPOSED 0x0201 258 #define RGB32_COMPOSED 0x0202 259 260 #define Y8 0x0006 261 #define YUV411_COMPOSED 0x0003 262 #define YUV422_COMPOSED 0x0000 263 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */ 264 #define YUV411_DECOMPOSED 0x100b 265 #define YUV422_DECOMPOSED 0x1009 266 #define YUV420_DECOMPOSED 0x100a 267 268 #define IS_PLANAR(x) (x & 0xf000) 269 270 /* misc defines */ 271 #define SAA7146_NO_SWAP (0x0) 272 #define SAA7146_TWO_BYTE_SWAP (0x1) 273 #define SAA7146_FOUR_BYTE_SWAP (0x2) 274 275 #endif 276