LXR linux/drivers/media/video/au0828/au0828.h

   1/*
   2 *  Driver for the Auvitek AU0828 USB bridge
   3 *
   4 *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *
  15 *  GNU General Public License for more details.
  16 *
  17 *  You should have received a copy of the GNU General Public License
  18 *  along with this program; if not, write to the Free Software
  19 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22#include <linux/usb.h>
  23#include <linux/i2c.h>
  24#include <linux/i2c-algo-bit.h>
  25#include <media/tveeprom.h>
  26
  27/* Analog */
  28#include <linux/videodev2.h>
  29#include <media/videobuf-vmalloc.h>
  30#include <media/v4l2-device.h>
  31
  32/* DVB */
  33#include "demux.h"
  34#include "dmxdev.h"
  35#include "dvb_demux.h"
  36#include "dvb_frontend.h"
  37#include "dvb_net.h"
  38#include "dvbdev.h"
  39
  40#include "au0828-reg.h"
  41#include "au0828-cards.h"
  42
  43#define DRIVER_NAME "au0828"
  44#define URB_COUNT   16
  45#define URB_BUFSIZE (0xe522)
  46
  47/* Analog constants */
  48#define NTSC_STD_W      720
  49#define NTSC_STD_H      480
  50
  51#define AU0828_INTERLACED_DEFAULT       1
  52#define V4L2_CID_PRIVATE_SHARPNESS  (V4L2_CID_PRIVATE_BASE + 0)
  53
  54/* Defination for AU0828 USB transfer */
  55#define AU0828_MAX_ISO_BUFS    12  /* maybe resize this value in the future */
  56#define AU0828_ISO_PACKETS_PER_URB      128
  57
  58#define AU0828_MIN_BUF 4
  59#define AU0828_DEF_BUF 8
  60
  61#define AU0828_MAX_INPUT        4
  62
  63/* au0828 resource types (used for res_get/res_lock etc */
  64#define AU0828_RESOURCE_VIDEO 0x01
  65#define AU0828_RESOURCE_VBI   0x02
  66
  67enum au0828_itype {
  68        AU0828_VMUX_UNDEFINED = 0,
  69        AU0828_VMUX_COMPOSITE,
  70        AU0828_VMUX_SVIDEO,
  71        AU0828_VMUX_CABLE,
  72        AU0828_VMUX_TELEVISION,
  73        AU0828_VMUX_DVB,
  74        AU0828_VMUX_DEBUG
  75};
  76
  77struct au0828_input {
  78        enum au0828_itype type;
  79        unsigned int vmux;
  80        unsigned int amux;
  81        void (*audio_setup) (void *priv, int enable);
  82};
  83
  84struct au0828_board {
  85        char *name;
  86        unsigned int tuner_type;
  87        unsigned char tuner_addr;
  88        unsigned char i2c_clk_divider;
  89        struct au0828_input input[AU0828_MAX_INPUT];
  90
  91};
  92
  93struct au0828_dvb {
  94        struct mutex lock;
  95        struct dvb_adapter adapter;
  96        struct dvb_frontend *frontend;
  97        struct dvb_demux demux;
  98        struct dmxdev dmxdev;
  99        struct dmx_frontend fe_hw;
 100        struct dmx_frontend fe_mem;
 101        struct dvb_net net;
 102        int feeding;
 103};
 104
 105enum au0828_stream_state {
 106        STREAM_OFF,
 107        STREAM_INTERRUPT,
 108        STREAM_ON
 109};
 110
 111#define AUVI_INPUT(nr) (dev->board.input[nr])
 112
 113/* device state */
 114enum au0828_dev_state {
 115        DEV_INITIALIZED = 0x01,
 116        DEV_DISCONNECTED = 0x02,
 117        DEV_MISCONFIGURED = 0x04
 118};
 119
 120struct au0828_fh {
 121        struct au0828_dev *dev;
 122        unsigned int  resources;
 123
 124        struct videobuf_queue        vb_vidq;
 125        struct videobuf_queue        vb_vbiq;
 126        enum v4l2_buf_type           type;
 127};
 128
 129struct au0828_usb_isoc_ctl {
 130                /* max packet size of isoc transaction */
 131        int                             max_pkt_size;
 132
 133                /* number of allocated urbs */
 134        int                             num_bufs;
 135
 136                /* urb for isoc transfers */
 137        struct urb                      **urb;
 138
 139                /* transfer buffers for isoc transfer */
 140        char                            **transfer_buffer;
 141
 142                /* Last buffer command and region */
 143        u8                              cmd;
 144        int                             pos, size, pktsize;
 145
 146                /* Last field: ODD or EVEN? */
 147        int                             field;
 148
 149                /* Stores incomplete commands */
 150        u32                             tmp_buf;
 151        int                             tmp_buf_len;
 152
 153                /* Stores already requested buffers */
 154        struct au0828_buffer            *buf;
 155        struct au0828_buffer            *vbi_buf;
 156
 157                /* Stores the number of received fields */
 158        int                             nfields;
 159
 160                /* isoc urb callback */
 161        int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
 162
 163};
 164
 165/* buffer for one video frame */
 166struct au0828_buffer {
 167        /* common v4l buffer stuff -- must be first */
 168        struct videobuf_buffer vb;
 169
 170        struct list_head frame;
 171        int top_field;
 172        int receiving;
 173};
 174
 175struct au0828_dmaqueue {
 176        struct list_head       active;
 177        struct list_head       queued;
 178
 179        wait_queue_head_t          wq;
 180
 181        /* Counters to control buffer fill */
 182        int                        pos;
 183};
 184
 185struct au0828_dev {
 186        struct mutex mutex;
 187        struct usb_device       *usbdev;
 188        int                     boardnr;
 189        struct au0828_board     board;
 190        u8                      ctrlmsg[64];
 191
 192        /* I2C */
 193        struct i2c_adapter              i2c_adap;
 194        struct i2c_algorithm            i2c_algo;
 195        struct i2c_client               i2c_client;
 196        u32                             i2c_rc;
 197
 198        /* Digital */
 199        struct au0828_dvb               dvb;
 200
 201        /* Analog */
 202        struct v4l2_device v4l2_dev;
 203        int users;
 204        unsigned int resources; /* resources in use */
 205        struct video_device *vdev;
 206        struct video_device *vbi_dev;
 207        struct timer_list vid_timeout;
 208        int vid_timeout_running;
 209        struct timer_list vbi_timeout;
 210        int vbi_timeout_running;
 211        int width;
 212        int height;
 213        int vbi_width;
 214        int vbi_height;
 215        u32 vbi_read;
 216        u32 field_size;
 217        u32 frame_size;
 218        u32 bytesperline;
 219        int type;
 220        u8 ctrl_ainput;
 221        __u8 isoc_in_endpointaddr;
 222        u8 isoc_init_ok;
 223        int greenscreen_detected;
 224        unsigned int frame_count;
 225        int ctrl_freq;
 226        int input_type;
 227        unsigned int ctrl_input;
 228        enum au0828_dev_state dev_state;
 229        enum au0828_stream_state stream_state;
 230        wait_queue_head_t open;
 231
 232        struct mutex lock;
 233
 234        /* Isoc control struct */
 235        struct au0828_dmaqueue vidq;
 236        struct au0828_dmaqueue vbiq;
 237        struct au0828_usb_isoc_ctl isoc_ctl;
 238        spinlock_t slock;
 239
 240        /* usb transfer */
 241        int alt;                /* alternate */
 242        int max_pkt_size;       /* max packet size of isoc transaction */
 243        int num_alt;            /* Number of alternative settings */
 244        unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 245        struct urb *urb[AU0828_MAX_ISO_BUFS];   /* urb for isoc transfers */
 246        char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
 247                                                   transfer */
 248
 249        /* USB / URB Related */
 250        int             urb_streaming;
 251        struct urb      *urbs[URB_COUNT];
 252};
 253
 254/* ----------------------------------------------------------- */
 255#define au0828_read(dev, reg) au0828_readreg(dev, reg)
 256#define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
 257#define au0828_andor(dev, reg, mask, value)                             \
 258         au0828_writereg(dev, reg,                                      \
 259        (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
 260
 261#define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
 262#define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
 263
 264/* ----------------------------------------------------------- */
 265/* au0828-core.c */
 266extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
 267extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
 268extern int au0828_debug;
 269
 270/* ----------------------------------------------------------- */
 271/* au0828-cards.c */
 272extern struct au0828_board au0828_boards[];
 273extern struct usb_device_id au0828_usb_id_table[];
 274extern void au0828_gpio_setup(struct au0828_dev *dev);
 275extern int au0828_tuner_callback(void *priv, int component,
 276                                 int command, int arg);
 277extern void au0828_card_setup(struct au0828_dev *dev);
 278
 279/* ----------------------------------------------------------- */
 280/* au0828-i2c.c */
 281extern int au0828_i2c_register(struct au0828_dev *dev);
 282extern int au0828_i2c_unregister(struct au0828_dev *dev);
 283
 284/* ----------------------------------------------------------- */
 285/* au0828-video.c */
 286int au0828_analog_register(struct au0828_dev *dev,
 287                           struct usb_interface *interface);
 288int au0828_analog_stream_disable(struct au0828_dev *d);
 289void au0828_analog_unregister(struct au0828_dev *dev);
 290
 291/* ----------------------------------------------------------- */
 292/* au0828-dvb.c */
 293extern int au0828_dvb_register(struct au0828_dev *dev);
 294extern void au0828_dvb_unregister(struct au0828_dev *dev);
 295
 296/* au0828-vbi.c */
 297extern struct videobuf_queue_ops au0828_vbi_qops;
 298
 299#define dprintk(level, fmt, arg...)\
 300        do { if (au0828_debug & level)\
 301                printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\
 302        } while (0)
 303