tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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/videobuf2-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 vb2_v4l2_buffer vb;
61 struct list_head list;
62
63 /* saa7146 specific */
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 struct vb2_queue q;
78};
79
80struct saa7146_vv
81{
82 /* vbi capture */
83 struct saa7146_dmaqueue vbi_dmaq;
84 struct v4l2_vbi_format vbi_fmt;
85 struct timer_list vbi_read_timeout;
86 /* vbi workaround interrupt queue */
87 wait_queue_head_t vbi_wq;
88
89 /* video capture */
90 struct saa7146_dmaqueue video_dmaq;
91 struct v4l2_pix_format video_fmt;
92 enum v4l2_field last_field;
93 u32 seqnr;
94
95 /* common: fixme? shouldn't this be in saa7146_fh?
96 (this leads to a more complicated question: shall the driver
97 store the different settings (for example S_INPUT) for every open
98 and restore it appropriately, or should all settings be common for
99 all opens? currently, we do the latter, like all other
100 drivers do... */
101 struct saa7146_standard *standard;
102
103 int vflip;
104 int hflip;
105 int current_hps_source;
106 int current_hps_sync;
107
108 unsigned int resources; /* resource management for device */
109};
110
111/* flags */
112#define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */
113
114struct saa7146_ext_vv
115{
116 /* information about the video capabilities of the device */
117 int inputs;
118 int audios;
119 u32 capabilities;
120 int flags;
121
122 /* additionally supported transmission standards */
123 struct saa7146_standard *stds;
124 int num_stds;
125 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
126
127 /* the extension can override this */
128 struct v4l2_ioctl_ops vid_ops;
129 struct v4l2_ioctl_ops vbi_ops;
130 /* pointer to the saa7146 core ops */
131 const struct v4l2_ioctl_ops *core_ops;
132
133 ssize_t (*vbi_write)(struct file *file, const char __user *data,
134 size_t count, loff_t *ppos);
135};
136
137struct saa7146_use_ops {
138 void (*init)(struct saa7146_dev *, struct saa7146_vv *);
139 void (*irq_done)(struct saa7146_dev *, unsigned long status);
140};
141
142/* from saa7146_fops.c */
143int saa7146_register_device(struct video_device *vid, struct saa7146_dev *dev, char *name, int type);
144int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev *dev);
145void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
146void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
147int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
148void saa7146_buffer_timeout(struct timer_list *t);
149
150int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
151int saa7146_vv_release(struct saa7146_dev* dev);
152
153/* from saa7146_hlp.c */
154void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
155void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
156void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
157void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
158
159/* from saa7146_video.c */
160extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
161extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
162extern const struct saa7146_use_ops saa7146_video_uops;
163extern const struct vb2_ops video_qops;
164long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
165int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
166
167/* from saa7146_vbi.c */
168extern const struct saa7146_use_ops saa7146_vbi_uops;
169extern const struct vb2_ops vbi_qops;
170
171/* resource management functions */
172int saa7146_res_get(struct saa7146_dev *dev, unsigned int bit);
173void saa7146_res_free(struct saa7146_dev *dev, unsigned int bits);
174
175#define RESOURCE_DMA1_HPS 0x1
176#define RESOURCE_DMA2_CLP 0x2
177#define RESOURCE_DMA3_BRS 0x4
178
179/* saa7146 source inputs */
180#define SAA7146_HPS_SOURCE_PORT_A 0x00
181#define SAA7146_HPS_SOURCE_PORT_B 0x01
182#define SAA7146_HPS_SOURCE_YPB_CPA 0x02
183#define SAA7146_HPS_SOURCE_YPA_CPB 0x03
184
185/* sync inputs */
186#define SAA7146_HPS_SYNC_PORT_A 0x00
187#define SAA7146_HPS_SYNC_PORT_B 0x01
188
189/* some memory sizes */
190/* max. 16 clipping rectangles */
191#define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32))
192
193/* some defines for the various clipping-modes */
194#define SAA7146_CLIPPING_RECT 0x4
195#define SAA7146_CLIPPING_RECT_INVERTED 0x5
196#define SAA7146_CLIPPING_MASK 0x6
197#define SAA7146_CLIPPING_MASK_INVERTED 0x7
198
199/* output formats: each entry holds four information */
200#define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */
201/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
202#define RGB15_COMPOSED 0x0213
203#define RGB16_COMPOSED 0x0210
204#define RGB24_COMPOSED 0x0201
205#define RGB32_COMPOSED 0x0202
206
207#define Y8 0x0006
208#define YUV411_COMPOSED 0x0003
209#define YUV422_COMPOSED 0x0000
210/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
211#define YUV411_DECOMPOSED 0x100b
212#define YUV422_DECOMPOSED 0x1009
213#define YUV420_DECOMPOSED 0x100a
214
215#define IS_PLANAR(x) (x & 0xf000)
216
217/* misc defines */
218#define SAA7146_NO_SWAP (0x0)
219#define SAA7146_TWO_BYTE_SWAP (0x1)
220#define SAA7146_FOUR_BYTE_SWAP (0x2)
221
222#endif