drivers/media/usb/as102/as102_drv.h

   1 /*
   2  * Abilis Systems Single DVB-T Receiver
   3  * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef _AS102_DRV_H
  17 #define _AS102_DRV_H
  18 #include <linux/usb.h>
  19 #include <dvb_demux.h>
  20 #include <dvb_frontend.h>
  21 #include <dmxdev.h>
  22 #include "as10x_handle.h"
  23 #include "as10x_cmd.h"
  24 #include "as102_usb_drv.h"
  25
  26 #define DRIVER_FULL_NAME "Abilis Systems as10x usb driver"
  27 #define DRIVER_NAME "as10x_usb"
  28
  29 #define debug   as102_debug
  30 extern struct usb_driver as102_usb_driver;
  31 extern int elna_enable;
  32
  33 #define AS102_DEVICE_MAJOR      192
  34
  35 #define AS102_USB_BUF_SIZE      512
  36 #define MAX_STREAM_URB          32
  37
  38 struct as10x_bus_adapter_t {
  39         struct usb_device *usb_dev;
  40         /* bus token lock */
  41         struct mutex lock;
  42         /* low level interface for bus adapter */
  43         union as10x_bus_token_t {
  44                 /* usb token */
  45                 struct as10x_usb_token_cmd_t usb;
  46         } token;
  47
  48         /* token cmd xfer id */
  49         uint16_t cmd_xid;
  50
  51         /* as10x command and response for dvb interface*/
  52         struct as10x_cmd_t *cmd, *rsp;
  53
  54         /* bus adapter private ops callback */
  55         const struct as102_priv_ops_t *ops;
  56 };
  57
  58 struct as102_dev_t {
  59         const char *name;
  60         struct as10x_bus_adapter_t bus_adap;
  61         struct list_head device_entry;
  62         struct kref kref;
  63         uint8_t elna_cfg;
  64
  65         struct dvb_adapter dvb_adap;
  66         struct dvb_frontend *dvb_fe;
  67         struct dvb_demux dvb_dmx;
  68         struct dmxdev dvb_dmxdev;
  69
  70         /* timer handle to trig ts stream download */
  71         struct timer_list timer_handle;
  72
  73         struct mutex sem;
  74         dma_addr_t dma_addr;
  75         void *stream;
  76         int streaming;
  77         struct urb *stream_urb[MAX_STREAM_URB];
  78 };
  79
  80 int as102_dvb_register(struct as102_dev_t *dev);
  81 void as102_dvb_unregister(struct as102_dev_t *dev);
  82
  83 #endif