2 * Driver for the Conexant CX25821 PCIe bridge
4 * Copyright (C) 2009 Conexant Systems Inc.
5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
6 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
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.
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
17 * GNU General Public License for more details.
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.
24 #ifndef CX25821_VIDEO_H_
25 #define CX25821_VIDEO_H_
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>
40 #include <media/v4l2-common.h>
41 #include <media/v4l2-ioctl.h>
43 #ifdef CONFIG_VIDEO_V4L1_COMPAT
44 /* Include V4L1 specific functions. Should be removed soon */
45 #include <linux/videodev.h>
52 #define dprintk(level, fmt, arg...) \
54 if (VIDEO_DEBUG >= level) \
55 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg); \
58 /* For IOCTL to identify running upstream */
59 #define UPSTREAM_START_VIDEO 700
60 #define UPSTREAM_STOP_VIDEO 701
61 #define UPSTREAM_START_AUDIO 702
62 #define UPSTREAM_STOP_AUDIO 703
63 #define UPSTREAM_DUMP_REGISTERS 702
64 #define SET_VIDEO_STD 800
65 #define SET_PIXEL_FORMAT 1000
66 #define ENABLE_CIF_RESOLUTION 1001
70 #define MEDUSA_READ 910
71 #define MEDUSA_WRITE 911
73 extern struct sram_channel *channel0;
74 extern struct sram_channel *channel1;
75 extern struct sram_channel *channel2;
76 extern struct sram_channel *channel3;
77 extern struct sram_channel *channel4;
78 extern struct sram_channel *channel5;
79 extern struct sram_channel *channel6;
80 extern struct sram_channel *channel7;
81 extern struct sram_channel *channel9;
82 extern struct sram_channel *channel10;
83 extern struct sram_channel *channel11;
84 extern struct video_device cx25821_videoioctl_template;
85 /* extern const u32 *ctrl_classes[]; */
87 extern unsigned int vid_limit;
89 #define FORMAT_FLAGS_PACKED 0x01
90 extern struct cx25821_fmt formats[];
91 extern struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc);
92 extern struct cx25821_data timeout_data[MAX_VID_CHANNEL_NUM];
94 extern void cx25821_dump_video_queue(struct cx25821_dev *dev,
95 struct cx25821_dmaqueue *q);
96 extern void cx25821_video_wakeup(struct cx25821_dev *dev,
97 struct cx25821_dmaqueue *q, u32 count);
100 extern int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm);
103 extern int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
105 extern int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit);
106 extern int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit);
107 extern void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
109 extern int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input);
110 extern int cx25821_start_video_dma(struct cx25821_dev *dev,
111 struct cx25821_dmaqueue *q,
112 struct cx25821_buffer *buf,
113 struct sram_channel *channel);
115 extern int cx25821_set_scale(struct cx25821_dev *dev, unsigned int width,
116 unsigned int height, enum v4l2_field field);
117 extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
118 extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
119 extern int cx25821_video_register(struct cx25821_dev *dev);
120 extern int cx25821_get_format_size(void);
122 extern int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
124 extern int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
125 enum v4l2_field field);
126 extern void cx25821_buffer_release(struct videobuf_queue *q,
127 struct videobuf_buffer *vb);
128 extern struct videobuf_queue *get_queue(struct cx25821_fh *fh);
129 extern int cx25821_get_resource(struct cx25821_fh *fh, int resource);
130 extern int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma);
131 extern int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
132 struct v4l2_format *f);
133 extern int cx25821_vidioc_querycap(struct file *file, void *priv,
134 struct v4l2_capability *cap);
135 extern int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
136 struct v4l2_fmtdesc *f);
137 extern int cx25821_vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf);
138 extern int cx25821_vidioc_reqbufs(struct file *file, void *priv,
139 struct v4l2_requestbuffers *p);
140 extern int cx25821_vidioc_querybuf(struct file *file, void *priv,
141 struct v4l2_buffer *p);
142 extern int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p);
143 extern int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms);
144 extern int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i);
145 extern int cx25821_vidioc_enum_input(struct file *file, void *priv,
146 struct v4l2_input *i);
147 extern int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i);
148 extern int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i);
149 extern int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
150 struct v4l2_control *ctl);
151 extern int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
152 struct v4l2_format *f);
153 extern int cx25821_vidioc_g_frequency(struct file *file, void *priv,
154 struct v4l2_frequency *f);
155 extern int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f);
156 extern int cx25821_vidioc_s_frequency(struct file *file, void *priv,
157 struct v4l2_frequency *f);
158 extern int cx25821_vidioc_g_register(struct file *file, void *fh,
159 struct v4l2_dbg_register *reg);
160 extern int cx25821_vidioc_s_register(struct file *file, void *fh,
161 struct v4l2_dbg_register *reg);
162 extern int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
163 extern int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
165 extern int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm);
166 extern int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm);
168 extern int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p);
169 extern int cx25821_vidioc_s_priority(struct file *file, void *f,
170 enum v4l2_priority prio);
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);
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, struct v4l2_crop *crop);
180 extern int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop);
182 extern int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm);