diff options
Diffstat (limited to 'include/media/saa7146_vv.h')
| -rw-r--r-- | include/media/saa7146_vv.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h new file mode 100644 index 00000000000..f3aa24f8131 --- /dev/null +++ b/include/media/saa7146_vv.h @@ -0,0 +1,270 @@ +#ifndef __SAA7146_VV__ +#define __SAA7146_VV__ + +#include <linux/videodev2.h> + +#include <media/saa7146.h> +#include <media/video-buf.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 { + struct saa7146_dev *dev; + /* if this is a vbi or capture open */ + enum v4l2_buf_type type; + + /* video overlay */ + struct saa7146_overlay ov; + + /* video capture */ + struct videobuf_queue video_q; + struct v4l2_pix_format video_fmt; + + /* vbi capture */ + struct videobuf_queue vbi_q; + struct v4l2_vbi_format vbi_fmt; + struct timer_list vbi_read_timeout; + + unsigned int resources; /* resource management for device open */ +}; + +#define STATUS_OVERLAY 0x01 +#define STATUS_CAPTURE 0x02 + +struct saa7146_vv +{ + int vbi_minor; + + /* vbi capture */ + struct saa7146_dmaqueue vbi_q; + /* vbi workaround interrupt queue */ + wait_queue_head_t vbi_wq; + int vbi_fieldcount; + struct saa7146_fh *vbi_streaming; + + int video_minor; + + int video_status; + struct saa7146_fh *video_fh; + + /* video overlay */ + struct v4l2_framebuffer ov_fb; + struct saa7146_format *ov_fmt; + struct saa7146_overlay *ov_data; + struct saa7146_fh *ov_suspend; + + /* video capture */ + struct saa7146_dmaqueue video_q; + 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 */ +}; + +#define SAA7146_EXCLUSIVE 0x1 +#define SAA7146_BEFORE 0x2 +#define SAA7146_AFTER 0x4 + +struct saa7146_extension_ioctls +{ + unsigned int cmd; + int flags; +}; + +/* 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 *); + + struct saa7146_extension_ioctls *ioctls; + int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg); +}; + +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 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 struct saa7146_use_ops saa7146_video_uops; +int saa7146_start_preview(struct saa7146_fh *fh); +int saa7146_stop_preview(struct saa7146_fh *fh); + +/* 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 */ +#define SAA7146_CLIPPING_MEM (14*PAGE_SIZE) + +/* 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 |