drivers/media/usb/dvb-usb/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
  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
 185 static inline int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev)
 186 {
 187         return -EINVAL;
 188 }
 189
 190 static inline int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev)
 191 {
 192         return 0;
 193 }
 194
 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