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f358f5b4 FB |
1 | /* |
2 | * nokia.c -- Nokia Composite Gadget Driver | |
3 | * | |
4 | * Copyright (C) 2008-2010 Nokia Corporation | |
5 | * Contact: Felipe Balbi <felipe.balbi@nokia.com> | |
6 | * | |
7 | * This gadget driver borrows from serial.c which is: | |
8 | * | |
9 | * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) | |
10 | * Copyright (C) 2008 by David Brownell | |
11 | * Copyright (C) 2008 by Nokia Corporation | |
12 | * | |
13 | * This software is distributed under the terms of the GNU General | |
14 | * Public License ("GPL") as published by the Free Software Foundation, | |
15 | * version 2 of that License. | |
16 | */ | |
17 | ||
18 | #include <linux/kernel.h> | |
19 | #include <linux/utsname.h> | |
20 | #include <linux/device.h> | |
21 | ||
22 | #include "u_serial.h" | |
23 | #include "u_ether.h" | |
24 | #include "u_phonet.h" | |
25 | #include "gadget_chips.h" | |
26 | ||
27 | /* Defines */ | |
28 | ||
29 | #define NOKIA_VERSION_NUM 0x0211 | |
30 | #define NOKIA_LONG_NAME "N900 (PC-Suite Mode)" | |
31 | ||
32 | /*-------------------------------------------------------------------------*/ | |
33 | ||
34 | /* | |
35 | * Kbuild is not very cooperative with respect to linking separately | |
36 | * compiled library objects into one module. So for now we won't use | |
37 | * separate compilation ... ensuring init/exit sections work to shrink | |
38 | * the runtime footprint, and giving us at least some parts of what | |
39 | * a "gcc --combine ... part1.c part2.c part3.c ... " build would. | |
40 | */ | |
41 | #include "composite.c" | |
42 | #include "usbstring.c" | |
43 | #include "config.c" | |
44 | #include "epautoconf.c" | |
45 | ||
46 | #include "u_serial.c" | |
47 | #include "f_acm.c" | |
48 | #include "f_ecm.c" | |
49 | #include "f_obex.c" | |
50 | #include "f_serial.c" | |
51 | #include "f_phonet.c" | |
52 | #include "u_ether.c" | |
53 | ||
54 | /*-------------------------------------------------------------------------*/ | |
55 | ||
56 | #define NOKIA_VENDOR_ID 0x0421 /* Nokia */ | |
57 | #define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */ | |
58 | ||
59 | /* string IDs are assigned dynamically */ | |
60 | ||
61 | #define STRING_MANUFACTURER_IDX 0 | |
62 | #define STRING_PRODUCT_IDX 1 | |
63 | #define STRING_DESCRIPTION_IDX 2 | |
64 | ||
65 | static char manufacturer_nokia[] = "Nokia"; | |
66 | static const char product_nokia[] = NOKIA_LONG_NAME; | |
67 | static const char description_nokia[] = "PC-Suite Configuration"; | |
68 | ||
69 | static struct usb_string strings_dev[] = { | |
70 | [STRING_MANUFACTURER_IDX].s = manufacturer_nokia, | |
71 | [STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME, | |
72 | [STRING_DESCRIPTION_IDX].s = description_nokia, | |
73 | { } /* end of list */ | |
74 | }; | |
75 | ||
76 | static struct usb_gadget_strings stringtab_dev = { | |
77 | .language = 0x0409, /* en-us */ | |
78 | .strings = strings_dev, | |
79 | }; | |
80 | ||
81 | static struct usb_gadget_strings *dev_strings[] = { | |
82 | &stringtab_dev, | |
83 | NULL, | |
84 | }; | |
85 | ||
86 | static struct usb_device_descriptor device_desc = { | |
87 | .bLength = USB_DT_DEVICE_SIZE, | |
88 | .bDescriptorType = USB_DT_DEVICE, | |
89 | .bcdUSB = __constant_cpu_to_le16(0x0200), | |
90 | .bDeviceClass = USB_CLASS_COMM, | |
91 | .idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID), | |
92 | .idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID), | |
93 | /* .iManufacturer = DYNAMIC */ | |
94 | /* .iProduct = DYNAMIC */ | |
95 | .bNumConfigurations = 1, | |
96 | }; | |
97 | ||
98 | /*-------------------------------------------------------------------------*/ | |
99 | ||
100 | /* Module */ | |
101 | MODULE_DESCRIPTION("Nokia composite gadget driver for N900"); | |
102 | MODULE_AUTHOR("Felipe Balbi"); | |
103 | MODULE_LICENSE("GPL"); | |
104 | ||
105 | /*-------------------------------------------------------------------------*/ | |
106 | ||
107 | static u8 hostaddr[ETH_ALEN]; | |
108 | ||
109 | static int __init nokia_bind_config(struct usb_configuration *c) | |
110 | { | |
111 | int status = 0; | |
112 | ||
113 | status = phonet_bind_config(c); | |
114 | if (status) | |
115 | printk(KERN_DEBUG "could not bind phonet config\n"); | |
116 | ||
117 | status = obex_bind_config(c, 0); | |
118 | if (status) | |
119 | printk(KERN_DEBUG "could not bind obex config %d\n", 0); | |
120 | ||
121 | status = obex_bind_config(c, 1); | |
122 | if (status) | |
123 | printk(KERN_DEBUG "could not bind obex config %d\n", 0); | |
124 | ||
125 | status = acm_bind_config(c, 2); | |
126 | if (status) | |
127 | printk(KERN_DEBUG "could not bind acm config\n"); | |
128 | ||
129 | status = ecm_bind_config(c, hostaddr); | |
130 | if (status) | |
131 | printk(KERN_DEBUG "could not bind ecm config\n"); | |
132 | ||
133 | return status; | |
134 | } | |
135 | ||
136 | static struct usb_configuration nokia_config_500ma_driver = { | |
137 | .label = "Bus Powered", | |
138 | .bind = nokia_bind_config, | |
139 | .bConfigurationValue = 1, | |
140 | /* .iConfiguration = DYNAMIC */ | |
141 | .bmAttributes = USB_CONFIG_ATT_ONE, | |
142 | .bMaxPower = 250, /* 500mA */ | |
143 | }; | |
144 | ||
145 | static struct usb_configuration nokia_config_100ma_driver = { | |
146 | .label = "Self Powered", | |
147 | .bind = nokia_bind_config, | |
148 | .bConfigurationValue = 2, | |
149 | /* .iConfiguration = DYNAMIC */ | |
150 | .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, | |
151 | .bMaxPower = 50, /* 100 mA */ | |
152 | }; | |
153 | ||
154 | static int __init nokia_bind(struct usb_composite_dev *cdev) | |
155 | { | |
156 | int gcnum; | |
157 | struct usb_gadget *gadget = cdev->gadget; | |
158 | int status; | |
159 | ||
160 | status = gphonet_setup(cdev->gadget); | |
161 | if (status < 0) | |
162 | goto err_phonet; | |
163 | ||
164 | status = gserial_setup(cdev->gadget, 3); | |
165 | if (status < 0) | |
166 | goto err_serial; | |
167 | ||
168 | status = gether_setup(cdev->gadget, hostaddr); | |
169 | if (status < 0) | |
170 | goto err_ether; | |
171 | ||
172 | status = usb_string_id(cdev); | |
173 | if (status < 0) | |
174 | goto err_usb; | |
175 | strings_dev[STRING_MANUFACTURER_IDX].id = status; | |
176 | ||
177 | device_desc.iManufacturer = status; | |
178 | ||
179 | status = usb_string_id(cdev); | |
180 | if (status < 0) | |
181 | goto err_usb; | |
182 | strings_dev[STRING_PRODUCT_IDX].id = status; | |
183 | ||
184 | device_desc.iProduct = status; | |
185 | ||
186 | /* config description */ | |
187 | status = usb_string_id(cdev); | |
188 | if (status < 0) | |
189 | goto err_usb; | |
190 | strings_dev[STRING_DESCRIPTION_IDX].id = status; | |
191 | ||
192 | nokia_config_500ma_driver.iConfiguration = status; | |
193 | nokia_config_100ma_driver.iConfiguration = status; | |
194 | ||
195 | /* set up other descriptors */ | |
196 | gcnum = usb_gadget_controller_number(gadget); | |
197 | if (gcnum >= 0) | |
198 | device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM); | |
199 | else { | |
200 | /* this should only work with hw that supports altsettings | |
201 | * and several endpoints, anything else, panic. | |
202 | */ | |
203 | pr_err("nokia_bind: controller '%s' not recognized\n", | |
204 | gadget->name); | |
205 | goto err_usb; | |
206 | } | |
207 | ||
208 | /* finaly register the configuration */ | |
209 | status = usb_add_config(cdev, &nokia_config_500ma_driver); | |
210 | if (status < 0) | |
211 | goto err_usb; | |
212 | ||
213 | status = usb_add_config(cdev, &nokia_config_100ma_driver); | |
214 | if (status < 0) | |
215 | goto err_usb; | |
216 | ||
217 | dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME); | |
218 | ||
219 | return 0; | |
220 | ||
221 | err_usb: | |
222 | gether_cleanup(); | |
223 | err_ether: | |
224 | gserial_cleanup(); | |
225 | err_serial: | |
226 | gphonet_cleanup(); | |
227 | err_phonet: | |
228 | return status; | |
229 | } | |
230 | ||
231 | static int __exit nokia_unbind(struct usb_composite_dev *cdev) | |
232 | { | |
233 | gphonet_cleanup(); | |
234 | gserial_cleanup(); | |
235 | gether_cleanup(); | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static struct usb_composite_driver nokia_driver = { | |
241 | .name = "g_nokia", | |
242 | .dev = &device_desc, | |
243 | .strings = dev_strings, | |
244 | .bind = nokia_bind, | |
245 | .unbind = __exit_p(nokia_unbind), | |
246 | }; | |
247 | ||
248 | static int __init nokia_init(void) | |
249 | { | |
250 | return usb_composite_register(&nokia_driver); | |
251 | } | |
252 | module_init(nokia_init); | |
253 | ||
254 | static void __exit nokia_cleanup(void) | |
255 | { | |
256 | usb_composite_unregister(&nokia_driver); | |
257 | } | |
258 | module_exit(nokia_cleanup); | |
259 |