Commit | Line | Data |
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776338e1 JS |
1 | /* dvb-usb-urb.c is part of the DVB USB library. |
2 | * | |
4d43e13f | 3 | * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) |
776338e1 JS |
4 | * see dvb-usb-init.c for copyright information. |
5 | * | |
4d43e13f | 6 | * This file keeps functions for initializing and handling the |
776338e1 JS |
7 | * USB and URB stuff. |
8 | */ | |
9 | #include "dvb-usb-common.h" | |
10 | ||
11 | int dvb_usb_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf, | |
12 | u16 rlen, int delay_ms) | |
13 | { | |
14 | int actlen,ret = -ENOMEM; | |
15 | ||
8268c8f5 DB |
16 | if (!d || wbuf == NULL || wlen == 0) |
17 | return -EINVAL; | |
18 | ||
776338e1 JS |
19 | if (d->props.generic_bulk_ctrl_endpoint == 0) { |
20 | err("endpoint for generic control not specified."); | |
21 | return -EINVAL; | |
22 | } | |
23 | ||
3593cab5 | 24 | if ((ret = mutex_lock_interruptible(&d->usb_mutex))) |
776338e1 JS |
25 | return ret; |
26 | ||
7f5fee57 | 27 | deb_xfer(">>> "); |
776338e1 JS |
28 | debug_dump(wbuf,wlen,deb_xfer); |
29 | ||
30 | ret = usb_bulk_msg(d->udev,usb_sndbulkpipe(d->udev, | |
31 | d->props.generic_bulk_ctrl_endpoint), wbuf,wlen,&actlen, | |
e161f817 | 32 | 2000); |
776338e1 JS |
33 | |
34 | if (ret) | |
35 | err("bulk message failed: %d (%d/%d)",ret,wlen,actlen); | |
36 | else | |
37 | ret = actlen != wlen ? -1 : 0; | |
38 | ||
39 | /* an answer is expected, and no error before */ | |
40 | if (!ret && rbuf && rlen) { | |
41 | if (delay_ms) | |
42 | msleep(delay_ms); | |
43 | ||
44 | ret = usb_bulk_msg(d->udev,usb_rcvbulkpipe(d->udev, | |
4605664b MK |
45 | d->props.generic_bulk_ctrl_endpoint_response ? |
46 | d->props.generic_bulk_ctrl_endpoint_response : | |
776338e1 | 47 | d->props.generic_bulk_ctrl_endpoint),rbuf,rlen,&actlen, |
e161f817 | 48 | 2000); |
776338e1 JS |
49 | |
50 | if (ret) | |
51 | err("recv bulk message failed: %d",ret); | |
7f5fee57 PB |
52 | else { |
53 | deb_xfer("<<< "); | |
776338e1 | 54 | debug_dump(rbuf,actlen,deb_xfer); |
7f5fee57 | 55 | } |
776338e1 JS |
56 | } |
57 | ||
3593cab5 | 58 | mutex_unlock(&d->usb_mutex); |
776338e1 JS |
59 | return ret; |
60 | } | |
61 | EXPORT_SYMBOL(dvb_usb_generic_rw); | |
62 | ||
63 | int dvb_usb_generic_write(struct dvb_usb_device *d, u8 *buf, u16 len) | |
64 | { | |
65 | return dvb_usb_generic_rw(d,buf,len,NULL,0,0); | |
66 | } | |
67 | EXPORT_SYMBOL(dvb_usb_generic_write); | |
68 | ||
4d43e13f | 69 | static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buffer, size_t length) |
7f5fee57 | 70 | { |
4d43e13f PB |
71 | struct dvb_usb_adapter *adap = stream->user_priv; |
72 | if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) | |
73 | dvb_dmx_swfilter(&adap->demux, buffer, length); | |
776338e1 JS |
74 | } |
75 | ||
0540c496 PB |
76 | static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buffer, size_t length) |
77 | { | |
78 | struct dvb_usb_adapter *adap = stream->user_priv; | |
79 | if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) | |
80 | dvb_dmx_swfilter_204(&adap->demux, buffer, length); | |
81 | } | |
82 | ||
379aa4d0 MK |
83 | static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, |
84 | u8 *buffer, size_t length) | |
85 | { | |
86 | struct dvb_usb_adapter *adap = stream->user_priv; | |
87 | if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) | |
88 | dvb_dmx_swfilter_raw(&adap->demux, buffer, length); | |
89 | } | |
90 | ||
4d43e13f | 91 | int dvb_usb_adapter_stream_init(struct dvb_usb_adapter *adap) |
7f5fee57 | 92 | { |
77eed219 MK |
93 | int i, ret = 0; |
94 | for (i = 0; i < adap->props.num_frontends; i++) { | |
95 | ||
96 | adap->fe_adap[i].stream.udev = adap->dev->udev; | |
97 | if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_204_BYTE_TS) | |
98 | adap->fe_adap[i].stream.complete = | |
99 | dvb_usb_data_complete_204; | |
100 | else | |
379aa4d0 MK |
101 | if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_RAW_PAYLOAD) |
102 | adap->fe_adap[i].stream.complete = | |
103 | dvb_usb_data_complete_raw; | |
104 | else | |
77eed219 MK |
105 | adap->fe_adap[i].stream.complete = dvb_usb_data_complete; |
106 | adap->fe_adap[i].stream.user_priv = adap; | |
107 | ret = usb_urb_init(&adap->fe_adap[i].stream, | |
108 | &adap->props.fe[i].stream); | |
109 | if (ret < 0) | |
110 | break; | |
111 | } | |
112 | return ret; | |
776338e1 JS |
113 | } |
114 | ||
4d43e13f | 115 | int dvb_usb_adapter_stream_exit(struct dvb_usb_adapter *adap) |
776338e1 | 116 | { |
77eed219 MK |
117 | int i; |
118 | for (i = 0; i < adap->props.num_frontends; i++) | |
119 | usb_urb_exit(&adap->fe_adap[i].stream); | |
120 | return 0; | |
776338e1 | 121 | } |