Edit File: saa7146_vv.h
#ifndef __SAA7146_VV__ #define __SAA7146_VV__ #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-fh.h> #include <media/saa7146.h> #include <media/videobuf-dma-sg.h> #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ #define WRITE_RPS0(x) do { \ dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \ } while (0); #define WRITE_RPS1(x) do { \ dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \ } while (0); struct saa7146_video_dma { u32 base_odd; u32 base_even; u32 prot_addr; u32 pitch; u32 base_page; u32 num_line_byte; }; #define FORMAT_BYTE_SWAP 0x1 #define FORMAT_IS_PLANAR 0x2 struct saa7146_format { char *name; u32 pixelformat; u32 trans; u8 depth; u8 flags; u8 swap; }; struct saa7146_standard { char *name; v4l2_std_id id; int v_offset; /* number of lines of vertical offset before processing */ int v_field; /* number of lines in a field for HPS to process */ int h_offset; /* horizontal offset of processing window */ int h_pixels; /* number of horizontal pixels to process */ int v_max_out; int h_max_out; }; /* buffer for one video/vbi frame */ struct saa7146_buf { /* common v4l buffer stuff -- must be first */ struct videobuf_buffer vb; /* saa7146 specific */ struct v4l2_pix_format *fmt; int (*activate)(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); /* page tables */ struct saa7146_pgtable pt[3]; }; struct saa7146_dmaqueue { struct saa7146_dev *dev; struct saa7146_buf *curr; struct list_head queue; struct timer_list timeout; }; struct saa7146_overlay { struct saa7146_fh *fh; struct v4l2_window win; struct v4l2_clip clips[16]; int nclips; }; /* per open data */ struct saa7146_fh { /* Must be the first field! */ struct v4l2_fh fh; struct saa7146_dev *dev; /* video capture */ struct videobuf_queue video_q; /* vbi capture */ struct videobuf_queue vbi_q; unsigned int resources; /* resource management for device open */ }; #define STATUS_OVERLAY 0x01 #define STATUS_CAPTURE 0x02 struct saa7146_vv { /* vbi capture */ struct saa7146_dmaqueue vbi_dmaq; struct v4l2_vbi_format vbi_fmt; struct timer_list vbi_read_timeout; /* vbi workaround interrupt queue */ wait_queue_head_t vbi_wq; int vbi_fieldcount; struct saa7146_fh *vbi_streaming; int video_status; struct saa7146_fh *video_fh; /* video overlay */ struct saa7146_overlay ov; struct v4l2_framebuffer ov_fb; struct saa7146_format *ov_fmt; struct saa7146_fh *ov_suspend; /* video capture */ struct saa7146_dmaqueue video_dmaq; struct v4l2_pix_format video_fmt; enum v4l2_field last_field; /* common: fixme? shouldn't this be in saa7146_fh? (this leads to a more complicated question: shall the driver store the different settings (for example S_INPUT) for every open and restore it appropriately, or should all settings be common for all opens? currently, we do the latter, like all other drivers do... */ struct saa7146_standard *standard; int vflip; int hflip; int current_hps_source; int current_hps_sync; struct saa7146_dma d_clipping; /* pointer to clipping memory */ unsigned int resources; /* resource management for device */ }; /* flags */ #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ struct saa7146_ext_vv { /* informations about the video capabilities of the device */ int inputs; int audios; u32 capabilities; int flags; /* additionally supported transmission standards */ struct saa7146_standard *stds; int num_stds; int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); /* the extension can override this */ struct v4l2_ioctl_ops vid_ops; struct v4l2_ioctl_ops vbi_ops; /* pointer to the saa7146 core ops */ const struct v4l2_ioctl_ops *core_ops; struct v4l2_file_operations vbi_fops; }; struct saa7146_use_ops { void (*init)(struct saa7146_dev *, struct saa7146_vv *); int(*open)(struct saa7146_dev *, struct file *); void (*release)(struct saa7146_dev *, struct file *); void (*irq_done)(struct saa7146_dev *, unsigned long status); ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); }; /* from saa7146_fops.c */ int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type); int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev); void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state); void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi); int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf); void saa7146_buffer_timeout(unsigned long data); void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q, struct saa7146_buf *buf); int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv); int saa7146_vv_release(struct saa7146_dev* dev); /* from saa7146_hlp.c */ int saa7146_enable_overlay(struct saa7146_fh *fh); void saa7146_disable_overlay(struct saa7146_fh *fh); void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ; void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync); void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data); /* from saa7146_video.c */ extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops; extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops; extern struct saa7146_use_ops saa7146_video_uops; int saa7146_start_preview(struct saa7146_fh *fh); int saa7146_stop_preview(struct saa7146_fh *fh); long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg); int saa7146_s_ctrl(struct v4l2_ctrl *ctrl); /* from saa7146_vbi.c */ extern struct saa7146_use_ops saa7146_vbi_uops; /* resource management functions */ int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit); void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); #define RESOURCE_DMA1_HPS 0x1 #define RESOURCE_DMA2_CLP 0x2 #define RESOURCE_DMA3_BRS 0x4 /* saa7146 source inputs */ #define SAA7146_HPS_SOURCE_PORT_A 0x00 #define SAA7146_HPS_SOURCE_PORT_B 0x01 #define SAA7146_HPS_SOURCE_YPB_CPA 0x02 #define SAA7146_HPS_SOURCE_YPA_CPB 0x03 /* sync inputs */ #define SAA7146_HPS_SYNC_PORT_A 0x00 #define SAA7146_HPS_SYNC_PORT_B 0x01 /* some memory sizes */ /* max. 16 clipping rectangles */ #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) /* some defines for the various clipping-modes */ #define SAA7146_CLIPPING_RECT 0x4 #define SAA7146_CLIPPING_RECT_INVERTED 0x5 #define SAA7146_CLIPPING_MASK 0x6 #define SAA7146_CLIPPING_MASK_INVERTED 0x7 /* output formats: each entry holds four informations */ #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */ /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */ #define RGB15_COMPOSED 0x0213 #define RGB16_COMPOSED 0x0210 #define RGB24_COMPOSED 0x0201 #define RGB32_COMPOSED 0x0202 #define Y8 0x0006 #define YUV411_COMPOSED 0x0003 #define YUV422_COMPOSED 0x0000 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */ #define YUV411_DECOMPOSED 0x100b #define YUV422_DECOMPOSED 0x1009 #define YUV420_DECOMPOSED 0x100a #define IS_PLANAR(x) (x & 0xf000) /* misc defines */ #define SAA7146_NO_SWAP (0x0) #define SAA7146_TWO_BYTE_SWAP (0x1) #define SAA7146_FOUR_BYTE_SWAP (0x2) #endif