1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _DVB_USB_CXUSB_H_
3 #define _DVB_USB_CXUSB_H_
4
5 #include <linux/completion.h>
6 #include <linux/i2c.h>
7 #include <linux/list.h>
8 #include <linux/mutex.h>
9 #include <linux/usb.h>
10 #include <linux/workqueue.h>
11 #include <media/v4l2-common.h>
12 #include <media/v4l2-dev.h>
13 #include <media/v4l2-device.h>
14 #include <media/videobuf2-core.h>
15 #include <media/videobuf2-v4l2.h>
16
17 #define DVB_USB_LOG_PREFIX "cxusb"
18 #include "dvb-usb.h"
19
20 #define CXUSB_VIDEO_URBS (5)
21 #define CXUSB_VIDEO_URB_MAX_SIZE (512 * 1024)
22
23 #define CXUSB_VIDEO_PKT_SIZE 3030
24 #define CXUSB_VIDEO_MAX_FRAME_PKTS 346
25 #define CXUSB_VIDEO_MAX_FRAME_SIZE (CXUSB_VIDEO_MAX_FRAME_PKTS * \
26 CXUSB_VIDEO_PKT_SIZE)
27
28 /* usb commands - some of it are guesses, don't have a reference yet */
29 #define CMD_BLUEBIRD_GPIO_RW 0x05
30
31 #define CMD_I2C_WRITE 0x08
32 #define CMD_I2C_READ 0x09
33
34 #define CMD_GPIO_READ 0x0d
35 #define CMD_GPIO_WRITE 0x0e
36 #define GPIO_TUNER 0x02
37
38 #define CMD_POWER_OFF 0xdc
39 #define CMD_POWER_ON 0xde
40
41 #define CMD_STREAMING_ON 0x36
42 #define CMD_STREAMING_OFF 0x37
43
44 #define CMD_AVER_STREAM_ON 0x18
45 #define CMD_AVER_STREAM_OFF 0x19
46
47 #define CMD_GET_IR_CODE 0x47
48
49 #define CMD_ANALOG 0x50
50 #define CMD_DIGITAL 0x51
51
52 #define CXUSB_BT656_PREAMBLE ((const u8 *)"\xff\x00\x00")
53
54 #define CXUSB_BT656_FIELD_MASK BIT(6)
55 #define CXUSB_BT656_FIELD_1 0
56 #define CXUSB_BT656_FIELD_2 BIT(6)
57
58 #define CXUSB_BT656_VBI_MASK BIT(5)
59 #define CXUSB_BT656_VBI_ON BIT(5)
60 #define CXUSB_BT656_VBI_OFF 0
61
62 #define CXUSB_BT656_SEAV_MASK BIT(4)
63 #define CXUSB_BT656_SEAV_EAV BIT(4)
64 #define CXUSB_BT656_SEAV_SAV 0
65
66 /* Max transfer size done by I2C transfer functions */
67 #define MAX_XFER_SIZE 80
68
69 struct cxusb_state {
70 u8 gpio_write_state[3];
71 bool gpio_write_refresh[3];
72 struct i2c_client *i2c_client_demod;
73 struct i2c_client *i2c_client_tuner;
74
75 unsigned char data[MAX_XFER_SIZE];
76
77 struct mutex stream_mutex;
78 u8 last_lock;
79 int (*fe_read_status)(struct dvb_frontend *fe,
80 enum fe_status *status);
81 };
82
83 enum cxusb_open_type {
84 CXUSB_OPEN_INIT,
85 CXUSB_OPEN_NONE,
86 CXUSB_OPEN_ANALOG,
87 CXUSB_OPEN_DIGITAL
88 };
89
90 struct cxusb_medion_auxbuf {
91 u8 *buf;
92 unsigned int len;
93 unsigned int paylen;
94 };
95
96 enum cxusb_bt656_mode {
97 NEW_FRAME, FIRST_FIELD, SECOND_FIELD
98 };
99
100 enum cxusb_bt656_fmode {
101 START_SEARCH, LINE_SAMPLES, VBI_SAMPLES
102 };
103
104 struct cxusb_bt656_params {
105 enum cxusb_bt656_mode mode;
106 enum cxusb_bt656_fmode fmode;
107 unsigned int pos;
108 unsigned int line;
109 unsigned int linesamples;
110 u8 *buf;
111 };
112
113 struct cxusb_medion_dev {
114 /* has to be the first one */
115 struct cxusb_state state;
116
117 struct dvb_usb_device *dvbdev;
118
119 enum cxusb_open_type open_type;
120 unsigned int open_ctr;
121 struct mutex open_lock;
122
123 #ifdef CONFIG_DVB_USB_CXUSB_ANALOG
124 struct v4l2_device v4l2dev;
125 struct v4l2_subdev *cx25840;
126 struct v4l2_subdev *tuner;
127 struct v4l2_subdev *tda9887;
128 struct video_device *videodev, *radiodev;
129 struct mutex dev_lock;
130
131 struct vb2_queue videoqueue;
132 u32 input;
133 bool stop_streaming;
134 u32 width, height;
135 u32 field_order;
136 struct cxusb_medion_auxbuf auxbuf;
137 v4l2_std_id norm;
138
139 struct urb *streamurbs[CXUSB_VIDEO_URBS];
140 unsigned long urbcomplete;
141 struct work_struct urbwork;
142 unsigned int nexturb;
143
144 struct cxusb_bt656_params bt656;
145 struct cxusb_medion_vbuffer *vbuf;
146 __u32 vbuf_sequence;
147
148 struct list_head buflist;
149
150 struct completion v4l2_release;
151 #endif
152 };
153
154 struct cxusb_medion_vbuffer {
155 struct vb2_v4l2_buffer vb2;
156 struct list_head list;
157 };
158
159 /* defines for "debug" module parameter */
160 #define CXUSB_DBG_RC BIT(0)
161 #define CXUSB_DBG_I2C BIT(1)
162 #define CXUSB_DBG_MISC BIT(2)
163 #define CXUSB_DBG_BT656 BIT(3)
164 #define CXUSB_DBG_URB BIT(4)
165 #define CXUSB_DBG_OPS BIT(5)
166 #define CXUSB_DBG_AUXB BIT(6)
167
168 extern int dvb_usb_cxusb_debug;
169
170 #define cxusb_vprintk(dvbdev, lvl, ...) do { \
171 struct cxusb_medion_dev *_cxdev = (dvbdev)->priv; \
172 if (dvb_usb_cxusb_debug & CXUSB_DBG_##lvl) \
173 v4l2_printk(KERN_DEBUG, \
174 &_cxdev->v4l2dev, __VA_ARGS__); \
175 } while (0)
176
177 int cxusb_ctrl_msg(struct dvb_usb_device *d,
178 u8 cmd, const u8 *wbuf, int wlen, u8 *rbuf, int rlen);
179
180 #ifdef CONFIG_DVB_USB_CXUSB_ANALOG
181 int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev);
182 int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev);
183 void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev);
184 #else
cxusb_medion_analog_init(struct dvb_usb_device * dvbdev)185 static inline int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev)
186 {
187 return -EINVAL;
188 }
189
cxusb_medion_register_analog(struct dvb_usb_device * dvbdev)190 static inline int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev)
191 {
192 return 0;
193 }
194
cxusb_medion_unregister_analog(struct dvb_usb_device * dvbdev)195 static inline void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev)
196 {
197 }
198 #endif
199
200 int cxusb_medion_get(struct dvb_usb_device *dvbdev,
201 enum cxusb_open_type open_type);
202 void cxusb_medion_put(struct dvb_usb_device *dvbdev);
203
204 #endif
205