tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __SAA7146_VV__
2#define __SAA7146_VV__
3
4#include <linux/videodev.h>
5
6#include <media/saa7146.h>
7#include <media/video-buf.h>
8
9#define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */
10#define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */
11
12#define WRITE_RPS0(x) do { \
13 dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
14 } while (0);
15
16#define WRITE_RPS1(x) do { \
17 dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
18 } while (0);
19
20struct saa7146_video_dma {
21 u32 base_odd;
22 u32 base_even;
23 u32 prot_addr;
24 u32 pitch;
25 u32 base_page;
26 u32 num_line_byte;
27};
28
29#define FORMAT_BYTE_SWAP 0x1
30#define FORMAT_IS_PLANAR 0x2
31
32struct saa7146_format {
33 char *name;
34 u32 pixelformat;
35 u32 trans;
36 u8 depth;
37 u8 flags;
38 u8 swap;
39};
40
41struct saa7146_standard
42{
43 char *name;
44 v4l2_std_id id;
45
46 int v_offset; /* number of lines of vertical offset before processing */
47 int v_field; /* number of lines in a field for HPS to process */
48
49 int h_offset; /* horizontal offset of processing window */
50 int h_pixels; /* number of horizontal pixels to process */
51
52 int v_max_out;
53 int h_max_out;
54};
55
56/* buffer for one video/vbi frame */
57struct saa7146_buf {
58 /* common v4l buffer stuff -- must be first */
59 struct videobuf_buffer vb;
60
61 /* saa7146 specific */
62 struct v4l2_pix_format *fmt;
63 int (*activate)(struct saa7146_dev *dev,
64 struct saa7146_buf *buf,
65 struct saa7146_buf *next);
66
67 /* page tables */
68 struct saa7146_pgtable pt[3];
69};
70
71struct saa7146_dmaqueue {
72 struct saa7146_dev *dev;
73 struct saa7146_buf *curr;
74 struct list_head queue;
75 struct timer_list timeout;
76};
77
78struct saa7146_overlay {
79 struct saa7146_fh *fh;
80 struct v4l2_window win;
81 struct v4l2_clip clips[16];
82 int nclips;
83};
84
85/* per open data */
86struct saa7146_fh {
87 struct saa7146_dev *dev;
88 /* if this is a vbi or capture open */
89 enum v4l2_buf_type type;
90
91 /* video overlay */
92 struct saa7146_overlay ov;
93
94 /* video capture */
95 struct videobuf_queue video_q;
96 struct v4l2_pix_format video_fmt;
97
98 /* vbi capture */
99 struct videobuf_queue vbi_q;
100 struct v4l2_vbi_format vbi_fmt;
101 struct timer_list vbi_read_timeout;
102
103 unsigned int resources; /* resource management for device open */
104};
105
106#define STATUS_OVERLAY 0x01
107#define STATUS_CAPTURE 0x02
108
109struct saa7146_vv
110{
111 int vbi_minor;
112
113 /* vbi capture */
114 struct saa7146_dmaqueue vbi_q;
115 /* vbi workaround interrupt queue */
116 wait_queue_head_t vbi_wq;
117 int vbi_fieldcount;
118 struct saa7146_fh *vbi_streaming;
119
120 int video_minor;
121
122 int video_status;
123 struct saa7146_fh *video_fh;
124
125 /* video overlay */
126 struct v4l2_framebuffer ov_fb;
127 struct saa7146_format *ov_fmt;
128 struct saa7146_overlay *ov_data;
129 struct saa7146_fh *ov_suspend;
130
131 /* video capture */
132 struct saa7146_dmaqueue video_q;
133 enum v4l2_field last_field;
134
135 /* common: fixme? shouldn't this be in saa7146_fh?
136 (this leads to a more complicated question: shall the driver
137 store the different settings (for example S_INPUT) for every open
138 and restore it appropriately, or should all settings be common for
139 all opens? currently, we do the latter, like all other
140 drivers do... */
141 struct saa7146_standard *standard;
142
143 int vflip;
144 int hflip;
145 int current_hps_source;
146 int current_hps_sync;
147
148 struct saa7146_dma d_clipping; /* pointer to clipping memory */
149
150 unsigned int resources; /* resource management for device */
151};
152
153#define SAA7146_EXCLUSIVE 0x1
154#define SAA7146_BEFORE 0x2
155#define SAA7146_AFTER 0x4
156
157struct saa7146_extension_ioctls
158{
159 unsigned int cmd;
160 int flags;
161};
162
163/* flags */
164#define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */
165
166struct saa7146_ext_vv
167{
168 /* informations about the video capabilities of the device */
169 int inputs;
170 int audios;
171 u32 capabilities;
172 int flags;
173
174 /* additionally supported transmission standards */
175 struct saa7146_standard *stds;
176 int num_stds;
177 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
178
179 struct saa7146_extension_ioctls *ioctls;
180 int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
181};
182
183struct saa7146_use_ops {
184 void (*init)(struct saa7146_dev *, struct saa7146_vv *);
185 int(*open)(struct saa7146_dev *, struct file *);
186 void (*release)(struct saa7146_dev *, struct file *);
187 void (*irq_done)(struct saa7146_dev *, unsigned long status);
188 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
189};
190
191/* from saa7146_fops.c */
192int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
193int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
194void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
195void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
196int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
197void saa7146_buffer_timeout(unsigned long data);
198void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf);
199
200int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
201int saa7146_vv_release(struct saa7146_dev* dev);
202
203/* from saa7146_hlp.c */
204int saa7146_enable_overlay(struct saa7146_fh *fh);
205void saa7146_disable_overlay(struct saa7146_fh *fh);
206
207void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
208void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
209void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
210void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
211
212/* from saa7146_video.c */
213extern struct saa7146_use_ops saa7146_video_uops;
214int saa7146_start_preview(struct saa7146_fh *fh);
215int saa7146_stop_preview(struct saa7146_fh *fh);
216
217/* from saa7146_vbi.c */
218extern struct saa7146_use_ops saa7146_vbi_uops;
219
220/* resource management functions */
221int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
222void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
223
224#define RESOURCE_DMA1_HPS 0x1
225#define RESOURCE_DMA2_CLP 0x2
226#define RESOURCE_DMA3_BRS 0x4
227
228/* saa7146 source inputs */
229#define SAA7146_HPS_SOURCE_PORT_A 0x00
230#define SAA7146_HPS_SOURCE_PORT_B 0x01
231#define SAA7146_HPS_SOURCE_YPB_CPA 0x02
232#define SAA7146_HPS_SOURCE_YPA_CPB 0x03
233
234/* sync inputs */
235#define SAA7146_HPS_SYNC_PORT_A 0x00
236#define SAA7146_HPS_SYNC_PORT_B 0x01
237
238/* some memory sizes */
239#define SAA7146_CLIPPING_MEM (14*PAGE_SIZE)
240
241/* some defines for the various clipping-modes */
242#define SAA7146_CLIPPING_RECT 0x4
243#define SAA7146_CLIPPING_RECT_INVERTED 0x5
244#define SAA7146_CLIPPING_MASK 0x6
245#define SAA7146_CLIPPING_MASK_INVERTED 0x7
246
247/* output formats: each entry holds four informations */
248#define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */
249/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
250#define RGB15_COMPOSED 0x0213
251#define RGB16_COMPOSED 0x0210
252#define RGB24_COMPOSED 0x0201
253#define RGB32_COMPOSED 0x0202
254
255#define Y8 0x0006
256#define YUV411_COMPOSED 0x0003
257#define YUV422_COMPOSED 0x0000
258/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
259#define YUV411_DECOMPOSED 0x100b
260#define YUV422_DECOMPOSED 0x1009
261#define YUV420_DECOMPOSED 0x100a
262
263#define IS_PLANAR(x) (x & 0xf000)
264
265/* misc defines */
266#define SAA7146_NO_SWAP (0x0)
267#define SAA7146_TWO_BYTE_SWAP (0x1)
268#define SAA7146_FOUR_BYTE_SWAP (0x2)
269
270#endif