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cx25821-video.h
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1 /*
2  * Driver for the Conexant CX25821 PCIe bridge
3  *
4  * Copyright (C) 2009 Conexant Systems Inc.
5  * Authors <[email protected]>, <[email protected]>
6  * Based on Steven Toth <[email protected]> cx23885 driver
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  *
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22  */
23 
24 #ifndef CX25821_VIDEO_H_
25 #define CX25821_VIDEO_H_
26 
27 #include <linux/init.h>
28 #include <linux/list.h>
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/kmod.h>
32 #include <linux/kernel.h>
33 #include <linux/slab.h>
34 #include <linux/interrupt.h>
35 #include <linux/delay.h>
36 #include <linux/kthread.h>
37 #include <asm/div64.h>
38 
39 #include "cx25821.h"
40 #include <media/v4l2-common.h>
41 #include <media/v4l2-ioctl.h>
42 
43 #define TUNER_FLAG
44 
45 #define VIDEO_DEBUG 0
46 
47 #define dprintk(level, fmt, arg...) \
48 do { \
49  if (VIDEO_DEBUG >= level) \
50  printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg); \
51 } while (0)
52 
53 /* For IOCTL to identify running upstream */
54 #define UPSTREAM_START_VIDEO 700
55 #define UPSTREAM_STOP_VIDEO 701
56 #define UPSTREAM_START_AUDIO 702
57 #define UPSTREAM_STOP_AUDIO 703
58 #define UPSTREAM_DUMP_REGISTERS 702
59 #define SET_VIDEO_STD 800
60 #define SET_PIXEL_FORMAT 1000
61 #define ENABLE_CIF_RESOLUTION 1001
62 
63 #define REG_READ 900
64 #define REG_WRITE 901
65 #define MEDUSA_READ 910
66 #define MEDUSA_WRITE 911
67 
68 extern struct sram_channel *channel0;
69 extern struct sram_channel *channel1;
70 extern struct sram_channel *channel2;
71 extern struct sram_channel *channel3;
72 extern struct sram_channel *channel4;
73 extern struct sram_channel *channel5;
74 extern struct sram_channel *channel6;
75 extern struct sram_channel *channel7;
76 extern struct sram_channel *channel9;
77 extern struct sram_channel *channel10;
78 extern struct sram_channel *channel11;
79 extern struct video_device cx25821_videoioctl_template;
80 /* extern const u32 *ctrl_classes[]; */
81 
82 extern unsigned int vid_limit;
83 
84 #define FORMAT_FLAGS_PACKED 0x01
85 extern struct cx25821_fmt formats[];
86 extern struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc);
87 extern struct cx25821_data timeout_data[MAX_VID_CHANNEL_NUM];
88 
89 extern void cx25821_video_wakeup(struct cx25821_dev *dev,
90  struct cx25821_dmaqueue *q, u32 count);
91 
92 #ifdef TUNER_FLAG
93 extern int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm);
94 #endif
95 
96 extern int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
97  unsigned int bit);
98 extern int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit);
99 extern int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit);
100 extern void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
101  unsigned int bits);
102 extern int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input);
103 extern int cx25821_start_video_dma(struct cx25821_dev *dev,
104  struct cx25821_dmaqueue *q,
105  struct cx25821_buffer *buf,
106  struct sram_channel *channel);
107 
108 extern int cx25821_set_scale(struct cx25821_dev *dev, unsigned int width,
109  unsigned int height, enum v4l2_field field);
110 extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
111 extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
112 extern int cx25821_video_register(struct cx25821_dev *dev);
113 extern int cx25821_get_format_size(void);
114 
115 extern int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
116  unsigned int *size);
117 extern int cx25821_buffer_prepare(struct videobuf_queue *q,
118  struct videobuf_buffer *vb,
119  enum v4l2_field field);
120 extern void cx25821_buffer_release(struct videobuf_queue *q,
121  struct videobuf_buffer *vb);
122 extern struct videobuf_queue *get_queue(struct cx25821_fh *fh);
123 extern int cx25821_get_resource(struct cx25821_fh *fh, int resource);
124 extern int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma);
125 extern int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
126  struct v4l2_format *f);
127 extern int cx25821_vidioc_querycap(struct file *file, void *priv,
128  struct v4l2_capability *cap);
129 extern int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
130  struct v4l2_fmtdesc *f);
131 extern int cx25821_vidioc_reqbufs(struct file *file, void *priv,
132  struct v4l2_requestbuffers *p);
133 extern int cx25821_vidioc_querybuf(struct file *file, void *priv,
134  struct v4l2_buffer *p);
135 extern int cx25821_vidioc_qbuf(struct file *file, void *priv,
136  struct v4l2_buffer *p);
137 extern int cx25821_vidioc_s_std(struct file *file, void *priv,
138  v4l2_std_id *tvnorms);
139 extern int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i);
140 extern int cx25821_vidioc_enum_input(struct file *file, void *priv,
141  struct v4l2_input *i);
142 extern int cx25821_vidioc_g_input(struct file *file, void *priv,
143  unsigned int *i);
144 extern int cx25821_vidioc_s_input(struct file *file, void *priv,
145  unsigned int i);
146 extern int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
147  struct v4l2_control *ctl);
148 extern int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
149  struct v4l2_format *f);
150 extern int cx25821_vidioc_g_frequency(struct file *file, void *priv,
151  struct v4l2_frequency *f);
152 extern int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f);
153 extern int cx25821_vidioc_s_frequency(struct file *file, void *priv,
154  struct v4l2_frequency *f);
155 extern int cx25821_vidioc_g_register(struct file *file, void *fh,
156  struct v4l2_dbg_register *reg);
157 extern int cx25821_vidioc_s_register(struct file *file, void *fh,
158  struct v4l2_dbg_register *reg);
159 extern int cx25821_vidioc_g_tuner(struct file *file, void *priv,
160  struct v4l2_tuner *t);
161 extern int cx25821_vidioc_s_tuner(struct file *file, void *priv,
162  struct v4l2_tuner *t);
163 
164 extern int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm);
165 extern int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm);
166 
167 extern int cx25821_vidioc_g_priority(struct file *file, void *f,
168  enum v4l2_priority *p);
169 extern int cx25821_vidioc_s_priority(struct file *file, void *f,
170  enum v4l2_priority prio);
171 
172 extern int cx25821_vidioc_queryctrl(struct file *file, void *priv,
173  struct v4l2_queryctrl *qctrl);
174 extern int cx25821_set_control(struct cx25821_dev *dev,
175  struct v4l2_control *ctrl, int chan_num);
176 
177 extern int cx25821_vidioc_cropcap(struct file *file, void *fh,
178  struct v4l2_cropcap *cropcap);
179 extern int cx25821_vidioc_s_crop(struct file *file, void *priv,
180  const struct v4l2_crop *crop);
181 extern int cx25821_vidioc_g_crop(struct file *file, void *priv,
182  struct v4l2_crop *crop);
183 
184 extern int cx25821_vidioc_querystd(struct file *file, void *priv,
185  v4l2_std_id *norm);
186 #endif
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