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   1 /*
   2    tm6000.h - driver for TM5600/TM6000 USB video capture devices
   3
   4    Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
   5
   6    Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
   7         - DVB-T support
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation version 2
  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    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 // Use the tm6000-hack, instead of the proper initialization code
  24 //#define HACK 1
  25
  26 #include <linux/videodev2.h>
  27 #include <media/v4l2-common.h>
  28 #include <media/videobuf-vmalloc.h>
  29 #include "tm6000-usb-isoc.h"
  30 #include <linux/i2c.h>
  31 #include <linux/mutex.h>
  32
  33 #include <linux/dvb/frontend.h>
  34 #include "dvb_demux.h"
  35 #include "dvb_frontend.h"
  36 #include "dmxdev.h"
  37
  38 #define TM6000_VERSION KERNEL_VERSION(0, 0, 1)
  39
  40 /* Inputs */
  41
  42 enum tm6000_itype {
  43         TM6000_INPUT_TV = 0,
  44         TM6000_INPUT_COMPOSITE,
  45         TM6000_INPUT_SVIDEO,
  46 };
  47
  48
  49 /* ------------------------------------------------------------------
  50         Basic structures
  51    ------------------------------------------------------------------*/
  52
  53 struct tm6000_fmt {
  54         char  *name;
  55         u32   fourcc;          /* v4l2 format id */
  56         int   depth;
  57 };
  58
  59 /* buffer for one video frame */
  60 struct tm6000_buffer {
  61         /* common v4l buffer stuff -- must be first */
  62         struct videobuf_buffer vb;
  63
  64         struct tm6000_fmt      *fmt;
  65 };
  66
  67 struct tm6000_dmaqueue {
  68         struct list_head       active;
  69         struct list_head       queued;
  70         struct timer_list      timeout;
  71
  72         /* thread for generating video stream*/
  73         struct task_struct         *kthread;
  74         wait_queue_head_t          wq;
  75         /* Counters to control fps rate */
  76         int                        frame;
  77         int                        ini_jiffies;
  78 };
  79
  80 /* device states */
  81 enum tm6000_core_state {
  82         DEV_INITIALIZED   = 0x01,
  83         DEV_DISCONNECTED  = 0x02,
  84         DEV_MISCONFIGURED = 0x04,
  85 };
  86
  87 /* io methods */
  88 enum tm6000_io_method {
  89         IO_NONE,
  90         IO_READ,
  91         IO_MMAP,
  92 };
  93
  94 enum tm6000_mode {
  95         TM6000_MODE_UNKNOWN=0,
  96         TM6000_MODE_ANALOG,
  97         TM6000_MODE_DIGITAL,
  98 };
  99
 100 struct tm6000_capabilities {
 101         unsigned int    has_tuner:1;
 102         unsigned int    has_tda9874:1;
 103         unsigned int    has_dvb:1;
 104         unsigned int    has_zl10353:1;
 105         unsigned int    has_eeprom:1;
 106         unsigned int    has_remote:1;
 107 };
 108
 109 struct tm6000_dvb {
 110         struct dvb_adapter      adapter;
 111         struct dvb_demux        demux;
 112         struct dvb_frontend     *frontend;
 113         struct dmxdev           dmxdev;
 114         unsigned int            streams;
 115         struct urb              *bulk_urb;
 116         struct mutex            mutex;
 117 };
 118
 119 struct tm6000_core {
 120         /* generic device properties */
 121         char                            name[30];       /* name (including minor) of the device */
 122         int                             model;          /* index in the device_data struct */
 123         int                             devno;          /* marks the number of this device */
 124
 125         v4l2_std_id                     norm;           /* Current norm */
 126         int                             width,height;   /* Selected resolution */
 127
 128         enum tm6000_core_state          state;
 129
 130         /* Device Capabilities*/
 131         struct tm6000_capabilities      caps;
 132
 133         /* Tuner configuration */
 134         int                             tuner_type;             /* type of the tuner */
 135         int                             tuner_addr;             /* tuner address */
 136         int                             tuner_reset_gpio;       /* GPIO used for tuner reset */
 137
 138         /* Demodulator configuration */
 139         int                             demod_addr;     /* demodulator address */
 140
 141         int                             audio_bitrate;
 142         /* i2c i/o */
 143         struct i2c_adapter              i2c_adap;
 144         struct i2c_client               i2c_client;
 145
 146         /* video for linux */
 147         struct list_head                tm6000_corelist;
 148         int                             users;
 149
 150         /* various device info */
 151         unsigned int                    resources;
 152         struct video_device             *vfd;
 153         struct tm6000_dmaqueue          vidq;
 154
 155         int                             input;
 156         int                             freq;
 157         unsigned int                    fourcc;
 158
 159         enum tm6000_mode                mode;
 160
 161         /* DVB-T support */
 162         struct tm6000_dvb               *dvb;
 163
 164         /* locks */
 165         struct mutex                    lock;
 166
 167         /* usb transfer */
 168         struct usb_device               *udev;          /* the usb device */
 169
 170         struct usb_host_endpoint        *bulk_in, *bulk_out, *isoc_in, *isoc_out;
 171         unsigned int                    max_bulk_in, max_bulk_out;
 172         unsigned int                    max_isoc_in, max_isoc_out;
 173
 174         /* scaler!=0 if scaler is active*/
 175         int                             scaler;
 176
 177                 /* Isoc control struct */
 178         struct usb_isoc_ctl          isoc_ctl;
 179
 180         spinlock_t                   slock;
 181 };
 182
 183 struct tm6000_fh {
 184         struct tm6000_core           *dev;
 185
 186         /* video capture */
 187         struct tm6000_fmt            *fmt;
 188         unsigned int                 width,height;
 189         struct videobuf_queue        vb_vidq;
 190
 191         enum v4l2_buf_type           type;
 192 };
 193
 194 #define TM6000_STD      V4L2_STD_PAL|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|    \
 195                         V4L2_STD_PAL_M|V4L2_STD_PAL_60|V4L2_STD_NTSC_M| \
 196                         V4L2_STD_NTSC_M_JP|V4L2_STD_SECAM
 197
 198 /* In tm6000-core.c */
 199 extern unsigned long tm6000_devused;
 200
 201 int tm6000_read_write_usb (struct tm6000_core *dev, u8 reqtype, u8 req,
 202                            u16 value, u16 index, u8 *buf, u16 len);
 203 int tm6000_get_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index);
 204 int tm6000_set_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index);
 205 int tm6000_init (struct tm6000_core *dev);
 206 int tm6000_init_after_firmware (struct tm6000_core *dev);
 207
 208 int tm6000_init_analog_mode (struct tm6000_core *dev);
 209 int tm6000_init_digital_mode (struct tm6000_core *dev);
 210 void tm6000_get_std_res(struct tm6000_core *dev);
 211 int tm6000_set_standard (struct tm6000_core *dev, v4l2_std_id *norm);
 212 int tm6000_set_audio_bitrate (struct tm6000_core *dev, int bitrate);
 213
 214 int tm6000_dvb_register(struct tm6000_core *dev);
 215 void tm6000_dvb_unregister(struct tm6000_core *dev);
 216
 217 int tm6000_v4l2_register(struct tm6000_core *dev);
 218 int tm6000_v4l2_unregister(struct tm6000_core *dev);
 219 int tm6000_v4l2_exit(void);
 220 void tm6000_set_fourcc_format(struct tm6000_core *dev);
 221
 222 /* In tm6000-i2c.c */
 223 int tm6000_i2c_register(struct tm6000_core *dev);
 224 int tm6000_i2c_unregister(struct tm6000_core *dev);
 225 void tm6000_i2c_call_clients(struct tm6000_core *dev, unsigned int cmd,
 226                              void *arg);
 227
 228 /* In tm6000-queue.c */
 229
 230 int tm6000_v4l2_mmap(struct file *filp, struct vm_area_struct *vma);
 231
 232 int tm6000_vidioc_streamon(struct file *file, void *priv,
 233                            enum v4l2_buf_type i);
 234 int tm6000_vidioc_streamoff(struct file *file, void *priv,
 235                             enum v4l2_buf_type i);
 236 int tm6000_vidioc_reqbufs (struct file *file, void *priv,
 237                            struct v4l2_requestbuffers *rb);
 238 int tm6000_vidioc_querybuf (struct file *file, void *priv,
 239                             struct v4l2_buffer *b);
 240 int tm6000_vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *b);
 241 int tm6000_vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *b);
 242 ssize_t tm6000_v4l2_read(struct file *filp, char __user * buf, size_t count,
 243                          loff_t * f_pos);
 244 unsigned int tm6000_v4l2_poll(struct file *file,
 245                               struct poll_table_struct *wait);
 246 int tm6000_queue_init(struct tm6000_core *dev);
 247
 248 /* Debug stuff */
 249
 250 extern int tm6000_debug;
 251
 252 #define dprintk(dev, level, fmt, arg...) do {\
 253         if (tm6000_debug & level) \
 254                 printk(KERN_INFO "(%lu) %s %s :"fmt, jiffies,           \
 255                          dev->name, __FUNCTION__ , ##arg); } while (0)
 256
 257 #define V4L2_DEBUG_REG          0x0004
 258 #define V4L2_DEBUG_I2C          0x0008
 259 #define V4L2_DEBUG_QUEUE        0x0010
 260 #define V4L2_DEBUG_ISOC         0x0020
 261 #define V4L2_DEBUG_RES_LOCK     0x0040  /* Resource locking */
 262 #define V4L2_DEBUG_OPEN         0x0080  /* video open/close debug */
 263
 264 #define tm6000_err(fmt, arg...) do {\
 265         printk(KERN_ERR "tm6000 %s :"fmt, \
 266                 __FUNCTION__ , ##arg); } while (0)
 267
 268