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266 lines
7.6 KiB
266 lines
7.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __SAA7146_VV__ |
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#define __SAA7146_VV__ |
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#include <media/v4l2-common.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/v4l2-fh.h> |
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#include <media/drv-intf/saa7146.h> |
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#include <media/videobuf-dma-sg.h> |
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#define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ |
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#define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ |
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#define WRITE_RPS0(x) do { \ |
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dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \ |
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} while (0); |
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#define WRITE_RPS1(x) do { \ |
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dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \ |
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} while (0); |
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struct saa7146_video_dma { |
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u32 base_odd; |
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u32 base_even; |
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u32 prot_addr; |
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u32 pitch; |
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u32 base_page; |
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u32 num_line_byte; |
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}; |
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#define FORMAT_BYTE_SWAP 0x1 |
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#define FORMAT_IS_PLANAR 0x2 |
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struct saa7146_format { |
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u32 pixelformat; |
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u32 trans; |
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u8 depth; |
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u8 flags; |
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u8 swap; |
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}; |
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struct saa7146_standard |
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{ |
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char *name; |
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v4l2_std_id id; |
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int v_offset; /* number of lines of vertical offset before processing */ |
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int v_field; /* number of lines in a field for HPS to process */ |
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int h_offset; /* horizontal offset of processing window */ |
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int h_pixels; /* number of horizontal pixels to process */ |
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int v_max_out; |
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int h_max_out; |
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}; |
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/* buffer for one video/vbi frame */ |
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struct saa7146_buf { |
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/* common v4l buffer stuff -- must be first */ |
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struct videobuf_buffer vb; |
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/* saa7146 specific */ |
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struct v4l2_pix_format *fmt; |
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int (*activate)(struct saa7146_dev *dev, |
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struct saa7146_buf *buf, |
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struct saa7146_buf *next); |
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/* page tables */ |
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struct saa7146_pgtable pt[3]; |
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}; |
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struct saa7146_dmaqueue { |
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struct saa7146_dev *dev; |
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struct saa7146_buf *curr; |
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struct list_head queue; |
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struct timer_list timeout; |
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}; |
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struct saa7146_overlay { |
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struct saa7146_fh *fh; |
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struct v4l2_window win; |
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struct v4l2_clip clips[16]; |
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int nclips; |
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}; |
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/* per open data */ |
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struct saa7146_fh { |
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/* Must be the first field! */ |
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struct v4l2_fh fh; |
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struct saa7146_dev *dev; |
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/* video capture */ |
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struct videobuf_queue video_q; |
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/* vbi capture */ |
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struct videobuf_queue vbi_q; |
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unsigned int resources; /* resource management for device open */ |
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}; |
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#define STATUS_OVERLAY 0x01 |
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#define STATUS_CAPTURE 0x02 |
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struct saa7146_vv |
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{ |
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/* vbi capture */ |
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struct saa7146_dmaqueue vbi_dmaq; |
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struct v4l2_vbi_format vbi_fmt; |
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struct timer_list vbi_read_timeout; |
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struct file *vbi_read_timeout_file; |
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/* vbi workaround interrupt queue */ |
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wait_queue_head_t vbi_wq; |
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int vbi_fieldcount; |
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struct saa7146_fh *vbi_streaming; |
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int video_status; |
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struct saa7146_fh *video_fh; |
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/* video overlay */ |
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struct saa7146_overlay ov; |
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struct v4l2_framebuffer ov_fb; |
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struct saa7146_format *ov_fmt; |
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struct saa7146_fh *ov_suspend; |
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/* video capture */ |
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struct saa7146_dmaqueue video_dmaq; |
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struct v4l2_pix_format video_fmt; |
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enum v4l2_field last_field; |
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/* common: fixme? shouldn't this be in saa7146_fh? |
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(this leads to a more complicated question: shall the driver |
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store the different settings (for example S_INPUT) for every open |
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and restore it appropriately, or should all settings be common for |
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all opens? currently, we do the latter, like all other |
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drivers do... */ |
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struct saa7146_standard *standard; |
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int vflip; |
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int hflip; |
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int current_hps_source; |
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int current_hps_sync; |
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struct saa7146_dma d_clipping; /* pointer to clipping memory */ |
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unsigned int resources; /* resource management for device */ |
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}; |
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/* flags */ |
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#define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ |
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struct saa7146_ext_vv |
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{ |
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/* information about the video capabilities of the device */ |
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int inputs; |
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int audios; |
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u32 capabilities; |
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int flags; |
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/* additionally supported transmission standards */ |
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struct saa7146_standard *stds; |
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int num_stds; |
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int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); |
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/* the extension can override this */ |
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struct v4l2_ioctl_ops vid_ops; |
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struct v4l2_ioctl_ops vbi_ops; |
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/* pointer to the saa7146 core ops */ |
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const struct v4l2_ioctl_ops *core_ops; |
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struct v4l2_file_operations vbi_fops; |
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}; |
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struct saa7146_use_ops { |
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void (*init)(struct saa7146_dev *, struct saa7146_vv *); |
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int(*open)(struct saa7146_dev *, struct file *); |
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void (*release)(struct saa7146_dev *, struct file *); |
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void (*irq_done)(struct saa7146_dev *, unsigned long status); |
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ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); |
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}; |
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/* from saa7146_fops.c */ |
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int saa7146_register_device(struct video_device *vid, struct saa7146_dev *dev, char *name, int type); |
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int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev *dev); |
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void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state); |
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void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi); |
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int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf); |
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void saa7146_buffer_timeout(struct timer_list *t); |
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void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q, |
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struct saa7146_buf *buf); |
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int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv); |
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int saa7146_vv_release(struct saa7146_dev* dev); |
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/* from saa7146_hlp.c */ |
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int saa7146_enable_overlay(struct saa7146_fh *fh); |
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void saa7146_disable_overlay(struct saa7146_fh *fh); |
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void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); |
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void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ; |
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void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync); |
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void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data); |
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/* from saa7146_video.c */ |
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extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops; |
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extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops; |
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extern const struct saa7146_use_ops saa7146_video_uops; |
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int saa7146_start_preview(struct saa7146_fh *fh); |
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int saa7146_stop_preview(struct saa7146_fh *fh); |
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long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg); |
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int saa7146_s_ctrl(struct v4l2_ctrl *ctrl); |
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/* from saa7146_vbi.c */ |
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extern const struct saa7146_use_ops saa7146_vbi_uops; |
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/* resource management functions */ |
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int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit); |
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void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); |
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#define RESOURCE_DMA1_HPS 0x1 |
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#define RESOURCE_DMA2_CLP 0x2 |
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#define RESOURCE_DMA3_BRS 0x4 |
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/* saa7146 source inputs */ |
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#define SAA7146_HPS_SOURCE_PORT_A 0x00 |
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#define SAA7146_HPS_SOURCE_PORT_B 0x01 |
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#define SAA7146_HPS_SOURCE_YPB_CPA 0x02 |
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#define SAA7146_HPS_SOURCE_YPA_CPB 0x03 |
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/* sync inputs */ |
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#define SAA7146_HPS_SYNC_PORT_A 0x00 |
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#define SAA7146_HPS_SYNC_PORT_B 0x01 |
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/* some memory sizes */ |
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/* max. 16 clipping rectangles */ |
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#define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) |
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/* some defines for the various clipping-modes */ |
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#define SAA7146_CLIPPING_RECT 0x4 |
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#define SAA7146_CLIPPING_RECT_INVERTED 0x5 |
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#define SAA7146_CLIPPING_MASK 0x6 |
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#define SAA7146_CLIPPING_MASK_INVERTED 0x7 |
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/* output formats: each entry holds four information */ |
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#define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */ |
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/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */ |
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#define RGB15_COMPOSED 0x0213 |
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#define RGB16_COMPOSED 0x0210 |
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#define RGB24_COMPOSED 0x0201 |
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#define RGB32_COMPOSED 0x0202 |
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#define Y8 0x0006 |
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#define YUV411_COMPOSED 0x0003 |
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#define YUV422_COMPOSED 0x0000 |
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/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */ |
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#define YUV411_DECOMPOSED 0x100b |
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#define YUV422_DECOMPOSED 0x1009 |
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#define YUV420_DECOMPOSED 0x100a |
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#define IS_PLANAR(x) (x & 0xf000) |
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/* misc defines */ |
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#define SAA7146_NO_SWAP (0x0) |
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#define SAA7146_TWO_BYTE_SWAP (0x1) |
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#define SAA7146_FOUR_BYTE_SWAP (0x2) |
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#endif
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