LXR linux/drivers/staging/media/as102/as102

   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 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20#include <linux/usb.h>
  21#include <dvb_demux.h>
  22#include <dvb_frontend.h>
  23#include <dmxdev.h>
  24#include "as10x_cmd.h"
  25#include "as102_usb_drv.h"
  26
  27#define DRIVER_FULL_NAME "Abilis Systems as10x usb driver"
  28#define DRIVER_NAME "as10x_usb"
  29
  30extern int as102_debug;
  31#define debug   as102_debug
  32extern struct usb_driver as102_usb_driver;
  33extern int elna_enable;
  34
  35#define dprintk(debug, args...) \
  36        do { if (debug) {       \
  37                pr_debug("%s: ", __func__);     \
  38                printk(args);   \
  39        } } while (0)
  40
  41#define AS102_DEVICE_MAJOR      192
  42
  43#define AS102_USB_BUF_SIZE      512
  44#define MAX_STREAM_URB          32
  45
  46struct as10x_bus_adapter_t {
  47        struct usb_device *usb_dev;
  48        /* bus token lock */
  49        struct mutex lock;
  50        /* low level interface for bus adapter */
  51        union as10x_bus_token_t {
  52                /* usb token */
  53                struct as10x_usb_token_cmd_t usb;
  54        } token;
  55
  56        /* token cmd xfer id */
  57        uint16_t cmd_xid;
  58
  59        /* as10x command and response for dvb interface*/
  60        struct as10x_cmd_t *cmd, *rsp;
  61
  62        /* bus adapter private ops callback */
  63        struct as102_priv_ops_t *ops;
  64};
  65
  66struct as102_dev_t {
  67        const char *name;
  68        struct as10x_bus_adapter_t bus_adap;
  69        struct list_head device_entry;
  70        struct kref kref;
  71        uint8_t elna_cfg;
  72
  73        struct dvb_adapter dvb_adap;
  74        struct dvb_frontend dvb_fe;
  75        struct dvb_demux dvb_dmx;
  76        struct dmxdev dvb_dmxdev;
  77
  78        /* demodulator stats */
  79        struct as10x_demod_stats demod_stats;
  80        /* signal strength */
  81        uint16_t signal_strength;
  82        /* bit error rate */
  83        uint32_t ber;
  84
  85        /* timer handle to trig ts stream download */
  86        struct timer_list timer_handle;
  87
  88        struct mutex sem;
  89        dma_addr_t dma_addr;
  90        void *stream;
  91        int streaming;
  92        struct urb *stream_urb[MAX_STREAM_URB];
  93};
  94
  95int as102_dvb_register(struct as102_dev_t *dev);
  96void as102_dvb_unregister(struct as102_dev_t *dev);
  97
  98int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe);
  99int as102_dvb_unregister_fe(struct dvb_frontend *dev);
 100