cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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saa7146_vv.h (7743B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __SAA7146_VV__
      3#define __SAA7146_VV__
      4
      5#include <media/v4l2-common.h>
      6#include <media/v4l2-ioctl.h>
      7#include <media/v4l2-fh.h>
      8#include <media/drv-intf/saa7146.h>
      9#include <media/videobuf-dma-sg.h>
     10
     11#define MAX_SAA7146_CAPTURE_BUFFERS	32	/* arbitrary */
     12#define BUFFER_TIMEOUT     (HZ/2)  /* 0.5 seconds */
     13
     14#define WRITE_RPS0(x) do { \
     15	dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
     16	} while (0);
     17
     18#define WRITE_RPS1(x) do { \
     19	dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
     20	} while (0);
     21
     22struct	saa7146_video_dma {
     23	u32 base_odd;
     24	u32 base_even;
     25	u32 prot_addr;
     26	u32 pitch;
     27	u32 base_page;
     28	u32 num_line_byte;
     29};
     30
     31#define FORMAT_BYTE_SWAP	0x1
     32#define FORMAT_IS_PLANAR	0x2
     33
     34struct saa7146_format {
     35	u32	pixelformat;
     36	u32	trans;
     37	u8	depth;
     38	u8	flags;
     39	u8	swap;
     40};
     41
     42struct saa7146_standard
     43{
     44	char          *name;
     45	v4l2_std_id   id;
     46
     47	int v_offset;	/* number of lines of vertical offset before processing */
     48	int v_field;	/* number of lines in a field for HPS to process */
     49
     50	int h_offset;	/* horizontal offset of processing window */
     51	int h_pixels;	/* number of horizontal pixels to process */
     52
     53	int v_max_out;
     54	int h_max_out;
     55};
     56
     57/* buffer for one video/vbi frame */
     58struct saa7146_buf {
     59	/* common v4l buffer stuff -- must be first */
     60	struct videobuf_buffer vb;
     61
     62	/* saa7146 specific */
     63	struct v4l2_pix_format  *fmt;
     64	int (*activate)(struct saa7146_dev *dev,
     65			struct saa7146_buf *buf,
     66			struct saa7146_buf *next);
     67
     68	/* page tables */
     69	struct saa7146_pgtable  pt[3];
     70};
     71
     72struct saa7146_dmaqueue {
     73	struct saa7146_dev	*dev;
     74	struct saa7146_buf	*curr;
     75	struct list_head	queue;
     76	struct timer_list	timeout;
     77};
     78
     79struct saa7146_overlay {
     80	struct saa7146_fh	*fh;
     81	struct v4l2_window	win;
     82	struct v4l2_clip	clips[16];
     83	int			nclips;
     84};
     85
     86/* per open data */
     87struct saa7146_fh {
     88	/* Must be the first field! */
     89	struct v4l2_fh		fh;
     90	struct saa7146_dev	*dev;
     91
     92	/* video capture */
     93	struct videobuf_queue	video_q;
     94
     95	/* vbi capture */
     96	struct videobuf_queue	vbi_q;
     97
     98	unsigned int resources;	/* resource management for device open */
     99};
    100
    101#define STATUS_OVERLAY	0x01
    102#define STATUS_CAPTURE	0x02
    103
    104struct saa7146_vv
    105{
    106	/* vbi capture */
    107	struct saa7146_dmaqueue		vbi_dmaq;
    108	struct v4l2_vbi_format		vbi_fmt;
    109	struct timer_list		vbi_read_timeout;
    110	struct file			*vbi_read_timeout_file;
    111	/* vbi workaround interrupt queue */
    112	wait_queue_head_t		vbi_wq;
    113	int				vbi_fieldcount;
    114	struct saa7146_fh		*vbi_streaming;
    115
    116	int				video_status;
    117	struct saa7146_fh		*video_fh;
    118
    119	/* video overlay */
    120	struct saa7146_overlay		ov;
    121	struct v4l2_framebuffer		ov_fb;
    122	struct saa7146_format		*ov_fmt;
    123	struct saa7146_fh		*ov_suspend;
    124
    125	/* video capture */
    126	struct saa7146_dmaqueue		video_dmaq;
    127	struct v4l2_pix_format		video_fmt;
    128	enum v4l2_field			last_field;
    129
    130	/* common: fixme? shouldn't this be in saa7146_fh?
    131	   (this leads to a more complicated question: shall the driver
    132	   store the different settings (for example S_INPUT) for every open
    133	   and restore it appropriately, or should all settings be common for
    134	   all opens? currently, we do the latter, like all other
    135	   drivers do... */
    136	struct saa7146_standard	*standard;
    137
    138	int	vflip;
    139	int	hflip;
    140	int	current_hps_source;
    141	int	current_hps_sync;
    142
    143	struct saa7146_dma	d_clipping;	/* pointer to clipping memory */
    144
    145	unsigned int resources;	/* resource management for device */
    146};
    147
    148/* flags */
    149#define SAA7146_USE_PORT_B_FOR_VBI	0x2     /* use input port b for vbi hardware bug workaround */
    150
    151struct saa7146_ext_vv
    152{
    153	/* information about the video capabilities of the device */
    154	int	inputs;
    155	int	audios;
    156	u32	capabilities;
    157	int	flags;
    158
    159	/* additionally supported transmission standards */
    160	struct saa7146_standard *stds;
    161	int num_stds;
    162	int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
    163
    164	/* the extension can override this */
    165	struct v4l2_ioctl_ops vid_ops;
    166	struct v4l2_ioctl_ops vbi_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
    173struct 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 */
    182int saa7146_register_device(struct video_device *vid, struct saa7146_dev *dev, char *name, int type);
    183int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev *dev);
    184void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
    185void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
    186int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
    187void saa7146_buffer_timeout(struct timer_list *t);
    188void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
    189						struct saa7146_buf *buf);
    190
    191int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
    192int saa7146_vv_release(struct saa7146_dev* dev);
    193
    194/* from saa7146_hlp.c */
    195int saa7146_enable_overlay(struct saa7146_fh *fh);
    196void saa7146_disable_overlay(struct saa7146_fh *fh);
    197
    198void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
    199void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
    200void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
    201void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
    202
    203/* from saa7146_video.c */
    204extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
    205extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
    206extern const struct saa7146_use_ops saa7146_video_uops;
    207int saa7146_start_preview(struct saa7146_fh *fh);
    208int saa7146_stop_preview(struct saa7146_fh *fh);
    209long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
    210int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
    211
    212/* from saa7146_vbi.c */
    213extern const struct saa7146_use_ops saa7146_vbi_uops;
    214
    215/* resource management functions */
    216int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
    217void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
    218
    219#define RESOURCE_DMA1_HPS	0x1
    220#define RESOURCE_DMA2_CLP	0x2
    221#define RESOURCE_DMA3_BRS	0x4
    222
    223/* saa7146 source inputs */
    224#define SAA7146_HPS_SOURCE_PORT_A	0x00
    225#define SAA7146_HPS_SOURCE_PORT_B	0x01
    226#define SAA7146_HPS_SOURCE_YPB_CPA	0x02
    227#define SAA7146_HPS_SOURCE_YPA_CPB	0x03
    228
    229/* sync inputs */
    230#define SAA7146_HPS_SYNC_PORT_A		0x00
    231#define SAA7146_HPS_SYNC_PORT_B		0x01
    232
    233/* some memory sizes */
    234/* max. 16 clipping rectangles */
    235#define SAA7146_CLIPPING_MEM	(16 * 4 * sizeof(u32))
    236
    237/* some defines for the various clipping-modes */
    238#define SAA7146_CLIPPING_RECT		0x4
    239#define SAA7146_CLIPPING_RECT_INVERTED	0x5
    240#define SAA7146_CLIPPING_MASK		0x6
    241#define SAA7146_CLIPPING_MASK_INVERTED	0x7
    242
    243/* output formats: each entry holds four information */
    244#define RGB08_COMPOSED	0x0217 /* composed is used in the sense of "not-planar" */
    245/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
    246#define RGB15_COMPOSED	0x0213
    247#define RGB16_COMPOSED	0x0210
    248#define RGB24_COMPOSED	0x0201
    249#define RGB32_COMPOSED	0x0202
    250
    251#define Y8			0x0006
    252#define YUV411_COMPOSED		0x0003
    253#define YUV422_COMPOSED		0x0000
    254/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
    255#define YUV411_DECOMPOSED	0x100b
    256#define YUV422_DECOMPOSED	0x1009
    257#define YUV420_DECOMPOSED	0x100a
    258
    259#define IS_PLANAR(x) (x & 0xf000)
    260
    261/* misc defines */
    262#define SAA7146_NO_SWAP		(0x0)
    263#define SAA7146_TWO_BYTE_SWAP	(0x1)
    264#define SAA7146_FOUR_BYTE_SWAP	(0x2)
    265
    266#endif