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#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
54struct 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
74struct 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
103int as102_dvb_register(struct as102_dev_t *dev);
104void as102_dvb_unregister(struct as102_dev_t *dev);
105
106int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe);
107int as102_dvb_unregister_fe(struct dvb_frontend *dev);
108