cxusb.h

  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
 69struct 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
 83enum cxusb_open_type {
 84	CXUSB_OPEN_INIT,
 85	CXUSB_OPEN_NONE,
 86	CXUSB_OPEN_ANALOG,
 87	CXUSB_OPEN_DIGITAL
 88};
 89
 90struct cxusb_medion_auxbuf {
 91	u8 *buf;
 92	unsigned int len;
 93	unsigned int paylen;
 94};
 95
 96enum cxusb_bt656_mode {
 97	NEW_FRAME, FIRST_FIELD, SECOND_FIELD
 98};
 99
100enum cxusb_bt656_fmode {
101	START_SEARCH, LINE_SAMPLES, VBI_SAMPLES
102};
103
104struct 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
113struct 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
154struct 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
168extern 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
177int 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
181int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev);
182int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev);
183void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev);
184#else
185static inline int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev)
186{
187	return -EINVAL;
188}
189
190static inline int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev)
191{
192	return 0;
193}
194
195static inline void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev)
196{
197}
198#endif
199
200int cxusb_medion_get(struct dvb_usb_device *dvbdev,
201		     enum cxusb_open_type open_type);
202void cxusb_medion_put(struct dvb_usb_device *dvbdev);
203
204#endif