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 30 extern int as102_debug; 31 #define debug as102_debug 32 extern struct usb_driver as102_usb_driver; 33 extern 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 #ifdef TRACE 42 #define ENTER() pr_debug(">> enter %s\n", __func__) 43 #define LEAVE() pr_debug("<< leave %s\n", __func__) 44 #else 45 #define ENTER() 46 #define LEAVE() 47 #endif 48 49 #define AS102_DEVICE_MAJOR 192 50 51 #define AS102_USB_BUF_SIZE 512 52 #define MAX_STREAM_URB 32 53 54 struct as10x_bus_adapter_t { 55 struct usb_device *usb_dev; 56 /* bus token lock */ 57 struct mutex lock; 58 /* low level interface for bus adapter */ 59 union as10x_bus_token_t { 60 /* usb token */ 61 struct as10x_usb_token_cmd_t usb; 62 } token; 63 64 /* token cmd xfer id */ 65 uint16_t cmd_xid; 66 67 /* as10x command and response for dvb interface*/ 68 struct as10x_cmd_t *cmd, *rsp; 69 70 /* bus adapter private ops callback */ 71 struct as102_priv_ops_t *ops; 72 }; 73 74 struct as102_dev_t { 75 const char *name; 76 struct as10x_bus_adapter_t bus_adap; 77 struct list_head device_entry; 78 struct kref kref; 79 uint8_t elna_cfg; 80 81 struct dvb_adapter dvb_adap; 82 struct dvb_frontend dvb_fe; 83 struct dvb_demux dvb_dmx; 84 struct dmxdev dvb_dmxdev; 85 86 /* demodulator stats */ 87 struct as10x_demod_stats demod_stats; 88 /* signal strength */ 89 uint16_t signal_strength; 90 /* bit error rate */ 91 uint32_t ber; 92 93 /* timer handle to trig ts stream download */ 94 struct timer_list timer_handle; 95 96 struct mutex sem; 97 dma_addr_t dma_addr; 98 void *stream; 99 int streaming; 100 struct urb *stream_urb[MAX_STREAM_URB]; 101 }; 102 103 int as102_dvb_register(struct as102_dev_t *dev); 104 void as102_dvb_unregister(struct as102_dev_t *dev); 105 106 int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe); 107 int as102_dvb_unregister_fe(struct dvb_frontend *dev); 108