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 /* vbi capture */ 112 struct saa7146_dmaqueue vbi_q; 113 /* vbi workaround interrupt queue */ 114 wait_queue_head_t vbi_wq; 115 int vbi_fieldcount; 116 struct saa7146_fh *vbi_streaming; 117 118 int video_status; 119 struct saa7146_fh *video_fh; 120 121 /* video overlay */ 122 struct v4l2_framebuffer ov_fb; 123 struct saa7146_format *ov_fmt; 124 struct saa7146_overlay *ov_data; 125 struct saa7146_fh *ov_suspend; 126 127 /* video capture */ 128 struct saa7146_dmaqueue video_q; 129 enum v4l2_field last_field; 130 131 /* common: fixme? shouldn't this be in saa7146_fh? 132 (this leads to a more complicated question: shall the driver 133 store the different settings (for example S_INPUT) for every open 134 and restore it appropriately, or should all settings be common for 135 all opens? currently, we do the latter, like all other 136 drivers do... */ 137 struct saa7146_standard *standard; 138 139 int vflip; 140 int hflip; 141 int current_hps_source; 142 int current_hps_sync; 143 144 struct saa7146_dma d_clipping; /* pointer to clipping memory */ 145 146 unsigned int resources; /* resource management for device */ 147 }; 148 149 /* flags */ 150 #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ 151 152 struct saa7146_ext_vv 153 { 154 /* informations about the video capabilities of the device */ 155 int inputs; 156 int audios; 157 u32 capabilities; 158 int flags; 159 160 /* additionally supported transmission standards */ 161 struct saa7146_standard *stds; 162 int num_stds; 163 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); 164 165 /* the extension can override this */ 166 struct v4l2_ioctl_ops ops; 167 /* pointer to the saa7146 core ops */ 168 const struct v4l2_ioctl_ops *core_ops; 169 170 struct v4l2_file_operations vbi_fops; 171 }; 172 173 struct saa7146_use_ops { 174 void (*init)(struct saa7146_dev *, struct saa7146_vv *); 175 int(*open)(struct saa7146_dev *, struct file *); 176 void (*release)(struct saa7146_dev *, struct file *); 177 void (*irq_done)(struct saa7146_dev *, unsigned long status); 178 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); 179 }; 180 181 /* from saa7146_fops.c */ 182 int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type); 183 int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev); 184 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state); 185 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi); 186 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf); 187 void saa7146_buffer_timeout(unsigned long data); 188 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q, 189 struct saa7146_buf *buf); 190 191 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv); 192 int saa7146_vv_release(struct saa7146_dev* dev); 193 194 /* from saa7146_hlp.c */ 195 int saa7146_enable_overlay(struct saa7146_fh *fh); 196 void saa7146_disable_overlay(struct saa7146_fh *fh); 197 198 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); 199 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ; 200 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync); 201 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data); 202 203 /* from saa7146_video.c */ 204 extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops; 205 extern struct saa7146_use_ops saa7146_video_uops; 206 int saa7146_start_preview(struct saa7146_fh *fh); 207 int saa7146_stop_preview(struct saa7146_fh *fh); 208 long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg); 209 210 /* from saa7146_vbi.c */ 211 extern struct saa7146_use_ops saa7146_vbi_uops; 212 213 /* resource management functions */ 214 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit); 215 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); 216 217 #define RESOURCE_DMA1_HPS 0x1 218 #define RESOURCE_DMA2_CLP 0x2 219 #define RESOURCE_DMA3_BRS 0x4 220 221 /* saa7146 source inputs */ 222 #define SAA7146_HPS_SOURCE_PORT_A 0x00 223 #define SAA7146_HPS_SOURCE_PORT_B 0x01 224 #define SAA7146_HPS_SOURCE_YPB_CPA 0x02 225 #define SAA7146_HPS_SOURCE_YPA_CPB 0x03 226 227 /* sync inputs */ 228 #define SAA7146_HPS_SYNC_PORT_A 0x00 229 #define SAA7146_HPS_SYNC_PORT_B 0x01 230 231 /* some memory sizes */ 232 /* max. 16 clipping rectangles */ 233 #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) 234 235 /* some defines for the various clipping-modes */ 236 #define SAA7146_CLIPPING_RECT 0x4 237 #define SAA7146_CLIPPING_RECT_INVERTED 0x5 238 #define SAA7146_CLIPPING_MASK 0x6 239 #define SAA7146_CLIPPING_MASK_INVERTED 0x7 240 241 /* output formats: each entry holds four informations */ 242 #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */ 243 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */ 244 #define RGB15_COMPOSED 0x0213 245 #define RGB16_COMPOSED 0x0210 246 #define RGB24_COMPOSED 0x0201 247 #define RGB32_COMPOSED 0x0202 248 249 #define Y8 0x0006 250 #define YUV411_COMPOSED 0x0003 251 #define YUV422_COMPOSED 0x0000 252 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */ 253 #define YUV411_DECOMPOSED 0x100b 254 #define YUV422_DECOMPOSED 0x1009 255 #define YUV420_DECOMPOSED 0x100a 256 257 #define IS_PLANAR(x) (x & 0xf000) 258 259 /* misc defines */ 260 #define SAA7146_NO_SWAP (0x0) 261 #define SAA7146_TWO_BYTE_SWAP (0x1) 262 #define SAA7146_FOUR_BYTE_SWAP (0x2) 263 264 #endif 265