1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
#ifndef __SAA7146_VV__
#define __SAA7146_VV__
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.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 {
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 */
};
/* 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 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 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);
/* 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
|
