LXR linux/drivers/media/usb/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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  23
  24#include <linux/bitops.h>
  25#include <linux/usb.h>
  26#include <linux/i2c.h>
  27#include <linux/i2c-algo-bit.h>
  28#include <media/tveeprom.h>
  29
  30/* Analog */
  31#include <linux/videodev2.h>
  32#include <media/videobuf2-v4l2.h>
  33#include <media/videobuf2-vmalloc.h>
  34#include <media/v4l2-device.h>
  35#include <media/v4l2-ctrls.h>
  36#include <media/v4l2-fh.h>
  37#include <media/media-device.h>
  38
  39/* DVB */
  40#include "demux.h"
  41#include "dmxdev.h"
  42#include "dvb_demux.h"
  43#include "dvb_frontend.h"
  44#include "dvb_net.h"
  45#include "dvbdev.h"
  46
  47#include "au0828-reg.h"
  48#include "au0828-cards.h"
  49
  50#define URB_COUNT   16
  51#define URB_BUFSIZE (0xe522)
  52
  53/* Analog constants */
  54#define NTSC_STD_W      720
  55#define NTSC_STD_H      480
  56
  57#define AU0828_INTERLACED_DEFAULT       1
  58
  59/* Defination for AU0828 USB transfer */
  60#define AU0828_MAX_ISO_BUFS    12  /* maybe resize this value in the future */
  61#define AU0828_ISO_PACKETS_PER_URB      128
  62
  63#define AU0828_MIN_BUF 4
  64#define AU0828_DEF_BUF 8
  65
  66#define AU0828_MAX_INPUT        4
  67
  68/* au0828 resource types (used for res_get/res_lock etc */
  69#define AU0828_RESOURCE_VIDEO 0x01
  70#define AU0828_RESOURCE_VBI   0x02
  71
  72enum au0828_itype {
  73        AU0828_VMUX_UNDEFINED = 0,
  74        AU0828_VMUX_COMPOSITE,
  75        AU0828_VMUX_SVIDEO,
  76        AU0828_VMUX_CABLE,
  77        AU0828_VMUX_TELEVISION,
  78        AU0828_VMUX_DVB,
  79};
  80
  81struct au0828_input {
  82        enum au0828_itype type;
  83        unsigned int vmux;
  84        unsigned int amux;
  85        void (*audio_setup) (void *priv, int enable);
  86};
  87
  88struct au0828_board {
  89        char *name;
  90        unsigned int tuner_type;
  91        unsigned char tuner_addr;
  92        unsigned char i2c_clk_divider;
  93        unsigned char has_ir_i2c:1;
  94        unsigned char has_analog:1;
  95        struct au0828_input input[AU0828_MAX_INPUT];
  96};
  97
  98struct au0828_dvb {
  99        struct mutex lock;
 100        struct dvb_adapter adapter;
 101        struct dvb_frontend *frontend;
 102        struct dvb_demux demux;
 103        struct dmxdev dmxdev;
 104        struct dmx_frontend fe_hw;
 105        struct dmx_frontend fe_mem;
 106        struct dvb_net net;
 107        int feeding;
 108        int start_count;
 109        int stop_count;
 110
 111        int (*set_frontend)(struct dvb_frontend *fe);
 112};
 113
 114enum au0828_stream_state {
 115        STREAM_OFF,
 116        STREAM_INTERRUPT,
 117        STREAM_ON
 118};
 119
 120#define AUVI_INPUT(nr) (dev->board.input[nr])
 121
 122/* device state */
 123enum au0828_dev_state {
 124        DEV_INITIALIZED = 0,
 125        DEV_DISCONNECTED = 1,
 126        DEV_MISCONFIGURED = 2
 127};
 128
 129struct au0828_dev;
 130
 131struct au0828_usb_isoc_ctl {
 132                /* max packet size of isoc transaction */
 133        int                             max_pkt_size;
 134
 135                /* number of allocated urbs */
 136        int                             num_bufs;
 137
 138                /* urb for isoc transfers */
 139        struct urb                      **urb;
 140
 141                /* transfer buffers for isoc transfer */
 142        char                            **transfer_buffer;
 143
 144                /* Last buffer command and region */
 145        u8                              cmd;
 146        int                             pos, size, pktsize;
 147
 148                /* Last field: ODD or EVEN? */
 149        int                             field;
 150
 151                /* Stores incomplete commands */
 152        u32                             tmp_buf;
 153        int                             tmp_buf_len;
 154
 155                /* Stores already requested buffers */
 156        struct au0828_buffer            *buf;
 157        struct au0828_buffer            *vbi_buf;
 158
 159                /* Stores the number of received fields */
 160        int                             nfields;
 161
 162                /* isoc urb callback */
 163        int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
 164
 165};
 166
 167/* buffer for one video frame */
 168struct au0828_buffer {
 169        /* common v4l buffer stuff -- must be first */
 170        struct vb2_v4l2_buffer vb;
 171        struct list_head list;
 172
 173        void *mem;
 174        unsigned long length;
 175        int top_field;
 176        /* pointer to vmalloc memory address in vb */
 177        char *vb_buf;
 178};
 179
 180struct au0828_dmaqueue {
 181        struct list_head       active;
 182        /* Counters to control buffer fill */
 183        int                    pos;
 184};
 185
 186struct au0828_dev {
 187        struct mutex mutex;
 188        struct usb_device       *usbdev;
 189        int                     boardnr;
 190        struct au0828_board     board;
 191        u8                      ctrlmsg[64];
 192
 193        /* I2C */
 194        struct i2c_adapter              i2c_adap;
 195        struct i2c_algorithm            i2c_algo;
 196        struct i2c_client               i2c_client;
 197        u32                             i2c_rc;
 198
 199        /* Digital */
 200        struct au0828_dvb               dvb;
 201        struct work_struct              restart_streaming;
 202
 203#ifdef CONFIG_VIDEO_AU0828_V4L2
 204        /* Analog */
 205        struct v4l2_device v4l2_dev;
 206        struct v4l2_ctrl_handler v4l2_ctrl_hdl;
 207#endif
 208#ifdef CONFIG_VIDEO_AU0828_RC
 209        struct au0828_rc *ir;
 210#endif
 211
 212        struct video_device vdev;
 213        struct video_device vbi_dev;
 214
 215        /* Videobuf2 */
 216        struct vb2_queue vb_vidq;
 217        struct vb2_queue vb_vbiq;
 218        struct mutex vb_queue_lock;
 219        struct mutex vb_vbi_queue_lock;
 220
 221        unsigned int frame_count;
 222        unsigned int vbi_frame_count;
 223
 224        struct timer_list vid_timeout;
 225        int vid_timeout_running;
 226        struct timer_list vbi_timeout;
 227        int vbi_timeout_running;
 228
 229        int users;
 230        int streaming_users;
 231
 232        int width;
 233        int height;
 234        int vbi_width;
 235        int vbi_height;
 236        u32 vbi_read;
 237        v4l2_std_id std;
 238        u32 field_size;
 239        u32 frame_size;
 240        u32 bytesperline;
 241        int type;
 242        u8 ctrl_ainput;
 243        __u8 isoc_in_endpointaddr;
 244        u8 isoc_init_ok;
 245        int greenscreen_detected;
 246        int ctrl_freq;
 247        int input_type;
 248        int std_set_in_tuner_core;
 249        unsigned int ctrl_input;
 250        long unsigned int dev_state; /* defined at enum au0828_dev_state */;
 251        enum au0828_stream_state stream_state;
 252        wait_queue_head_t open;
 253
 254        struct mutex lock;
 255
 256        /* Isoc control struct */
 257        struct au0828_dmaqueue vidq;
 258        struct au0828_dmaqueue vbiq;
 259        struct au0828_usb_isoc_ctl isoc_ctl;
 260        spinlock_t slock;
 261
 262        /* usb transfer */
 263        int alt;                /* alternate */
 264        int max_pkt_size;       /* max packet size of isoc transaction */
 265        int num_alt;            /* Number of alternative settings */
 266        unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 267        struct urb *urb[AU0828_MAX_ISO_BUFS];   /* urb for isoc transfers */
 268        char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
 269                                                   transfer */
 270
 271        /* DVB USB / URB Related */
 272        bool            urb_streaming, need_urb_start;
 273        struct urb      *urbs[URB_COUNT];
 274
 275        /* Preallocated transfer digital transfer buffers */
 276
 277        char *dig_transfer_buffer[URB_COUNT];
 278
 279#ifdef CONFIG_MEDIA_CONTROLLER
 280        struct media_device *media_dev;
 281        struct media_pad video_pad, vbi_pad;
 282        struct media_entity *decoder;
 283        struct media_entity input_ent[AU0828_MAX_INPUT];
 284        struct media_pad input_pad[AU0828_MAX_INPUT];
 285        struct media_entity_notify entity_notify;
 286        struct media_entity *tuner;
 287        struct media_link *active_link;
 288        struct media_entity *active_link_owner;
 289        struct media_entity *active_source;
 290        struct media_entity *active_sink;
 291#endif
 292};
 293
 294
 295/* ----------------------------------------------------------- */
 296#define au0828_read(dev, reg) au0828_readreg(dev, reg)
 297#define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
 298#define au0828_andor(dev, reg, mask, value)                             \
 299         au0828_writereg(dev, reg,                                      \
 300        (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
 301
 302#define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
 303#define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
 304
 305/* ----------------------------------------------------------- */
 306/* au0828-core.c */
 307extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
 308extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
 309extern void au0828_usb_release(struct au0828_dev *dev);
 310extern int au0828_debug;
 311
 312/* ----------------------------------------------------------- */
 313/* au0828-cards.c */
 314extern struct au0828_board au0828_boards[];
 315extern struct usb_device_id au0828_usb_id_table[];
 316extern void au0828_gpio_setup(struct au0828_dev *dev);
 317extern int au0828_tuner_callback(void *priv, int component,
 318                                 int command, int arg);
 319extern void au0828_card_setup(struct au0828_dev *dev);
 320
 321/* ----------------------------------------------------------- */
 322/* au0828-i2c.c */
 323extern int au0828_i2c_register(struct au0828_dev *dev);
 324extern int au0828_i2c_unregister(struct au0828_dev *dev);
 325
 326/* ----------------------------------------------------------- */
 327/* au0828-video.c */
 328extern int au0828_start_analog_streaming(struct vb2_queue *vq,
 329                                                unsigned int count);
 330extern void au0828_stop_vbi_streaming(struct vb2_queue *vq);
 331#ifdef CONFIG_VIDEO_AU0828_V4L2
 332extern int au0828_v4l2_device_register(struct usb_interface *interface,
 333                                      struct au0828_dev *dev);
 334
 335extern int au0828_analog_register(struct au0828_dev *dev,
 336                           struct usb_interface *interface);
 337extern int au0828_analog_unregister(struct au0828_dev *dev);
 338extern void au0828_usb_v4l2_media_release(struct au0828_dev *dev);
 339extern void au0828_v4l2_suspend(struct au0828_dev *dev);
 340extern void au0828_v4l2_resume(struct au0828_dev *dev);
 341#else
 342static inline int au0828_v4l2_device_register(struct usb_interface *interface,
 343                                              struct au0828_dev *dev)
 344{ return 0; };
 345static inline int au0828_analog_register(struct au0828_dev *dev,
 346                                     struct usb_interface *interface)
 347{ return 0; };
 348static inline int au0828_analog_unregister(struct au0828_dev *dev)
 349{ return 0; };
 350static inline void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { };
 351static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { };
 352static inline void au0828_v4l2_resume(struct au0828_dev *dev) { };
 353#endif
 354
 355/* ----------------------------------------------------------- */
 356/* au0828-dvb.c */
 357extern int au0828_dvb_register(struct au0828_dev *dev);
 358extern void au0828_dvb_unregister(struct au0828_dev *dev);
 359void au0828_dvb_suspend(struct au0828_dev *dev);
 360void au0828_dvb_resume(struct au0828_dev *dev);
 361
 362/* au0828-vbi.c */
 363extern struct vb2_ops au0828_vbi_qops;
 364
 365#define dprintk(level, fmt, arg...)\
 366        do { if (au0828_debug & level)\
 367                printk(KERN_DEBUG pr_fmt(fmt), ## arg);\
 368        } while (0)
 369
 370/* au0828-input.c */
 371#ifdef CONFIG_VIDEO_AU0828_RC
 372extern int au0828_rc_register(struct au0828_dev *dev);
 373extern void au0828_rc_unregister(struct au0828_dev *dev);
 374extern int au0828_rc_suspend(struct au0828_dev *dev);
 375extern int au0828_rc_resume(struct au0828_dev *dev);
 376#else
 377static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; }
 378static inline void au0828_rc_unregister(struct au0828_dev *dev) { }
 379static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; }
 380static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; }
 381#endif
 382