Commit | Line | Data |
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776338e1 JS |
1 | /* |
2 | * DVB USB library - provides a generic interface for a DVB USB device driver. | |
3 | * | |
4 | * dvb-usb-init.c | |
5 | * | |
6 | * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation, version 2. | |
11 | * | |
12 | * see Documentation/dvb/README.dvb-usb for more information | |
13 | */ | |
14 | #include "dvb-usb-common.h" | |
15 | ||
16 | /* debug */ | |
17 | int dvb_usb_debug; | |
18 | module_param_named(debug,dvb_usb_debug, int, 0644); | |
19 | MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64 (or-able))." DVB_USB_DEBUG_STATUS); | |
20 | ||
c9b06fa4 PB |
21 | int dvb_usb_disable_rc_polling; |
22 | module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644); | |
23 | MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0)."); | |
24 | ||
776338e1 | 25 | /* general initialization functions */ |
15ac8e66 | 26 | static int dvb_usb_exit(struct dvb_usb_device *d) |
776338e1 JS |
27 | { |
28 | deb_info("state before exiting everything: %x\n",d->state); | |
29 | dvb_usb_remote_exit(d); | |
30 | dvb_usb_fe_exit(d); | |
31 | dvb_usb_i2c_exit(d); | |
32 | dvb_usb_dvb_exit(d); | |
33 | dvb_usb_urb_exit(d); | |
34 | deb_info("state should be zero now: %x\n",d->state); | |
35 | d->state = DVB_USB_STATE_INIT; | |
36 | kfree(d->priv); | |
37 | kfree(d); | |
38 | return 0; | |
39 | } | |
40 | ||
41 | static int dvb_usb_init(struct dvb_usb_device *d) | |
42 | { | |
43 | int ret = 0; | |
44 | ||
45 | sema_init(&d->usb_sem, 1); | |
46 | sema_init(&d->i2c_sem, 1); | |
47 | ||
48 | d->state = DVB_USB_STATE_INIT; | |
49 | ||
50 | /* check the capabilites and set appropriate variables */ | |
51 | ||
52 | /* speed - when running at FULL speed we need a HW PID filter */ | |
53 | if (d->udev->speed == USB_SPEED_FULL && !(d->props.caps & DVB_USB_HAS_PID_FILTER)) { | |
8df3d460 | 54 | err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)"); |
776338e1 JS |
55 | return -ENODEV; |
56 | } | |
57 | ||
58 | if ((d->udev->speed == USB_SPEED_FULL && d->props.caps & DVB_USB_HAS_PID_FILTER) || | |
59 | (d->props.caps & DVB_USB_NEED_PID_FILTERING)) { | |
8df3d460 | 60 | info("will use the device's hardware PID filter (table count: %d).",d->props.pid_filter_count); |
776338e1 JS |
61 | d->pid_filtering = 1; |
62 | d->max_feed_count = d->props.pid_filter_count; | |
63 | } else { | |
8df3d460 | 64 | info("will pass the complete MPEG2 transport stream to the software demuxer."); |
776338e1 JS |
65 | d->pid_filtering = 0; |
66 | d->max_feed_count = 255; | |
67 | } | |
68 | ||
69 | if (d->props.power_ctrl) | |
70 | d->props.power_ctrl(d,1); | |
71 | ||
72 | if ((ret = dvb_usb_urb_init(d)) || | |
73 | (ret = dvb_usb_dvb_init(d)) || | |
74 | (ret = dvb_usb_i2c_init(d)) || | |
75 | (ret = dvb_usb_fe_init(d))) { | |
76 | dvb_usb_exit(d); | |
77 | return ret; | |
78 | } | |
79 | ||
80 | if ((ret = dvb_usb_remote_init(d))) | |
81 | err("could not initialize remote control."); | |
82 | ||
83 | if (d->props.power_ctrl) | |
84 | d->props.power_ctrl(d,0); | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | /* determine the name and the state of the just found USB device */ | |
90 | static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device *udev,struct dvb_usb_properties *props, int *cold) | |
91 | { | |
92 | int i,j; | |
93 | struct dvb_usb_device_description *desc = NULL; | |
94 | *cold = -1; | |
95 | ||
96 | for (i = 0; i < props->num_device_descs; i++) { | |
97 | ||
98 | for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) { | |
99 | deb_info("check for cold %x %x\n",props->devices[i].cold_ids[j]->idVendor, props->devices[i].cold_ids[j]->idProduct); | |
100 | if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && | |
101 | props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { | |
102 | *cold = 1; | |
103 | desc = &props->devices[i]; | |
104 | break; | |
105 | } | |
106 | } | |
107 | ||
108 | if (desc != NULL) | |
109 | break; | |
110 | ||
111 | for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) { | |
112 | deb_info("check for warm %x %x\n",props->devices[i].warm_ids[j]->idVendor, props->devices[i].warm_ids[j]->idProduct); | |
113 | if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && | |
114 | props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { | |
115 | *cold = 0; | |
116 | desc = &props->devices[i]; | |
117 | break; | |
118 | } | |
119 | } | |
120 | } | |
121 | ||
122 | if (desc != NULL && props->identify_state != NULL) | |
123 | props->identify_state(udev,props,&desc,cold); | |
124 | ||
125 | return desc; | |
126 | } | |
127 | ||
128 | /* | |
129 | * USB | |
130 | */ | |
47dc3d68 PB |
131 | |
132 | int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_properties | |
133 | *props, struct module *owner,struct dvb_usb_device **du) | |
776338e1 JS |
134 | { |
135 | struct usb_device *udev = interface_to_usbdev(intf); | |
136 | struct dvb_usb_device *d = NULL; | |
137 | struct dvb_usb_device_description *desc = NULL; | |
138 | ||
139 | int ret = -ENOMEM,cold=0; | |
140 | ||
141 | if ((desc = dvb_usb_find_device(udev,props,&cold)) == NULL) { | |
142 | deb_err("something went very wrong, device was not found in current device list - let's see what comes next.\n"); | |
143 | return -ENODEV; | |
144 | } | |
145 | ||
146 | if (cold) { | |
147 | info("found a '%s' in cold state, will try to load a firmware",desc->name); | |
d3707add PB |
148 | ret = dvb_usb_download_firmware(udev,props); |
149 | if (!props->no_reconnect) | |
776338e1 | 150 | return ret; |
d3707add PB |
151 | } |
152 | ||
153 | info("found a '%s' in warm state.",desc->name); | |
154 | d = kmalloc(sizeof(struct dvb_usb_device),GFP_KERNEL); | |
155 | if (d == NULL) { | |
156 | err("no memory for 'struct dvb_usb_device'"); | |
157 | return ret; | |
158 | } | |
159 | memset(d,0,sizeof(struct dvb_usb_device)); | |
160 | ||
161 | d->udev = udev; | |
162 | memcpy(&d->props,props,sizeof(struct dvb_usb_properties)); | |
163 | d->desc = desc; | |
164 | d->owner = owner; | |
165 | ||
166 | if (d->props.size_of_priv > 0) { | |
167 | d->priv = kmalloc(d->props.size_of_priv,GFP_KERNEL); | |
168 | if (d->priv == NULL) { | |
169 | err("no memory for priv in 'struct dvb_usb_device'"); | |
170 | kfree(d); | |
171 | return -ENOMEM; | |
776338e1 | 172 | } |
d3707add PB |
173 | memset(d->priv,0,d->props.size_of_priv); |
174 | } | |
776338e1 | 175 | |
d3707add | 176 | usb_set_intfdata(intf, d); |
776338e1 | 177 | |
d3707add PB |
178 | if (du != NULL) |
179 | *du = d; | |
47dc3d68 | 180 | |
d3707add | 181 | ret = dvb_usb_init(d); |
776338e1 JS |
182 | |
183 | if (ret == 0) | |
184 | info("%s successfully initialized and connected.",desc->name); | |
185 | else | |
186 | info("%s error while loading driver (%d)",desc->name,ret); | |
187 | return ret; | |
188 | } | |
189 | EXPORT_SYMBOL(dvb_usb_device_init); | |
190 | ||
191 | void dvb_usb_device_exit(struct usb_interface *intf) | |
192 | { | |
193 | struct dvb_usb_device *d = usb_get_intfdata(intf); | |
194 | const char *name = "generic DVB-USB module"; | |
195 | ||
196 | usb_set_intfdata(intf,NULL); | |
197 | if (d != NULL && d->desc != NULL) { | |
198 | name = d->desc->name; | |
199 | dvb_usb_exit(d); | |
200 | } | |
201 | info("%s successfully deinitialized and disconnected.",name); | |
202 | ||
203 | } | |
204 | EXPORT_SYMBOL(dvb_usb_device_exit); | |
205 | ||
776338e1 JS |
206 | MODULE_VERSION("0.3"); |
207 | MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); | |
208 | MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices"); | |
209 | MODULE_LICENSE("GPL"); |