1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Qualcomm Serial USB driver |
4 | * |
5 | * Copyright (c) 2008 QUALCOMM Incorporated. |
6 | * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de> |
7 | * Copyright (c) 2009 Novell Inc. |
8 | */ |
9 | |
10 | #include <linux/tty.h> |
11 | #include <linux/tty_flip.h> |
12 | #include <linux/module.h> |
13 | #include <linux/usb.h> |
14 | #include <linux/usb/serial.h> |
15 | #include <linux/slab.h> |
16 | #include "usb-wwan.h" |
17 | |
18 | #define DRIVER_AUTHOR "Qualcomm Inc" |
19 | #define DRIVER_DESC "Qualcomm USB Serial driver" |
20 | |
21 | #define QUECTEL_EC20_PID 0x9215 |
22 | |
23 | /* standard device layouts supported by this driver */ |
24 | enum qcserial_layouts { |
25 | QCSERIAL_G2K = 0, /* Gobi 2000 */ |
26 | QCSERIAL_G1K = 1, /* Gobi 1000 */ |
27 | QCSERIAL_SWI = 2, /* Sierra Wireless */ |
28 | QCSERIAL_HWI = 3, /* Huawei */ |
29 | }; |
30 | |
31 | #define DEVICE_G1K(v, p) \ |
32 | USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K |
33 | #define DEVICE_SWI(v, p) \ |
34 | USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI |
35 | #define DEVICE_HWI(v, p) \ |
36 | USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI |
37 | |
38 | static const struct usb_device_id id_table[] = { |
39 | /* Gobi 1000 devices */ |
40 | {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ |
41 | {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ |
42 | {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ |
43 | {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ |
44 | {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ |
45 | {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ |
46 | {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */ |
47 | {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */ |
48 | {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ |
49 | {DEVICE_G1K(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ |
50 | {DEVICE_G1K(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ |
51 | {DEVICE_G1K(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ |
52 | {DEVICE_G1K(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ |
53 | {DEVICE_G1K(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ |
54 | {DEVICE_G1K(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ |
55 | {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ |
56 | {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ |
57 | {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ |
58 | {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ |
59 | {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ |
60 | {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ |
61 | {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ |
62 | {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ |
63 | {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ |
64 | {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ |
65 | {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ |
66 | {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ |
67 | {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ |
68 | {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ |
69 | {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ |
70 | {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ |
71 | {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ |
72 | {DEVICE_G1K(0x1bc7, 0x900e)}, /* Telit Gobi QDL device */ |
73 | |
74 | /* Gobi 2000 devices */ |
75 | {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */ |
76 | {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */ |
77 | {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */ |
78 | {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */ |
79 | {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */ |
80 | {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ |
81 | {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ |
82 | {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ |
83 | {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ |
84 | {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ |
85 | {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ |
86 | {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ |
87 | {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ |
88 | {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ |
89 | {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ |
90 | {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ |
91 | {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ |
92 | {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ |
93 | {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ |
94 | {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ |
95 | {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ |
96 | {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ |
97 | {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ |
98 | {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ |
99 | {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
100 | {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
101 | {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
102 | {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
103 | {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
104 | {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
105 | {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
106 | {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
107 | {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
108 | {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
109 | {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ |
110 | {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ |
111 | {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ |
112 | {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ |
113 | {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ |
114 | |
115 | /* Gobi 3000 devices */ |
116 | {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */ |
117 | {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */ |
118 | {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */ |
119 | {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */ |
120 | {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */ |
121 | {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */ |
122 | {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ |
123 | {USB_DEVICE(0x413c, 0x81a6)}, /* Dell DW5570 QDL (MC8805) */ |
124 | {USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */ |
125 | {USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ |
126 | {USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */ |
127 | {USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ |
128 | {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ |
129 | {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ |
130 | {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ |
131 | {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ |
132 | {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ |
133 | {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ |
134 | {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ |
135 | {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ |
136 | {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ |
137 | {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ |
138 | {USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */ |
139 | |
140 | /* non-Gobi Sierra Wireless devices */ |
141 | {DEVICE_SWI(0x03f0, 0x4e1d)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ |
142 | {DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */ |
143 | {DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */ |
144 | {DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */ |
145 | {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */ |
146 | {DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */ |
147 | {DEVICE_SWI(0x1199, 0x901e)}, /* Sierra Wireless EM7355 QDL */ |
148 | {DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */ |
149 | {DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */ |
150 | {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */ |
151 | {DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */ |
152 | {DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */ |
153 | {DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */ |
154 | {DEVICE_SWI(0x1199, 0x9055)}, /* Netgear AirCard 341U */ |
155 | {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */ |
156 | {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */ |
157 | {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */ |
158 | {DEVICE_SWI(0x1199, 0x9062)}, /* Sierra Wireless EM7305 QDL */ |
159 | {DEVICE_SWI(0x1199, 0x9063)}, /* Sierra Wireless EM7305 */ |
160 | {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */ |
161 | {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */ |
162 | {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */ |
163 | {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ |
164 | {DEVICE_SWI(0x1199, 0x907a)}, /* Sierra Wireless EM74xx QDL */ |
165 | {DEVICE_SWI(0x1199, 0x907b)}, /* Sierra Wireless EM74xx */ |
166 | {DEVICE_SWI(0x1199, 0x9090)}, /* Sierra Wireless EM7565 QDL */ |
167 | {DEVICE_SWI(0x1199, 0x9091)}, /* Sierra Wireless EM7565 */ |
168 | {DEVICE_SWI(0x1199, 0x90d2)}, /* Sierra Wireless EM9191 QDL */ |
169 | {DEVICE_SWI(0x1199, 0xc080)}, /* Sierra Wireless EM7590 QDL */ |
170 | {DEVICE_SWI(0x1199, 0xc081)}, /* Sierra Wireless EM7590 */ |
171 | {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ |
172 | {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ |
173 | {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ |
174 | {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ |
175 | {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ |
176 | {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ |
177 | {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ |
178 | {DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */ |
179 | {DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */ |
180 | {DEVICE_SWI(0x413c, 0x81c2)}, /* Dell Wireless 5811e */ |
181 | {DEVICE_SWI(0x413c, 0x81cb)}, /* Dell Wireless 5816e QDL */ |
182 | {DEVICE_SWI(0x413c, 0x81cc)}, /* Dell Wireless 5816e */ |
183 | {DEVICE_SWI(0x413c, 0x81cf)}, /* Dell Wireless 5819 */ |
184 | {DEVICE_SWI(0x413c, 0x81d0)}, /* Dell Wireless 5819 */ |
185 | {DEVICE_SWI(0x413c, 0x81d1)}, /* Dell Wireless 5818 */ |
186 | {DEVICE_SWI(0x413c, 0x81d2)}, /* Dell Wireless 5818 */ |
187 | |
188 | /* Huawei devices */ |
189 | {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ |
190 | |
191 | { } /* Terminating entry */ |
192 | }; |
193 | MODULE_DEVICE_TABLE(usb, id_table); |
194 | |
195 | static int handle_quectel_ec20(struct device *dev, int ifnum) |
196 | { |
197 | int altsetting = 0; |
198 | |
199 | /* |
200 | * Quectel EC20 Mini PCIe LTE module layout: |
201 | * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
202 | * 1: NMEA |
203 | * 2: AT-capable modem port |
204 | * 3: Modem interface |
205 | * 4: NDIS |
206 | */ |
207 | switch (ifnum) { |
208 | case 0: |
209 | dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n" ); |
210 | break; |
211 | case 1: |
212 | dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n" ); |
213 | break; |
214 | case 2: |
215 | case 3: |
216 | dev_dbg(dev, "Quectel EC20 Modem port found\n" ); |
217 | break; |
218 | case 4: |
219 | /* Don't claim the QMI/net interface */ |
220 | altsetting = -1; |
221 | break; |
222 | } |
223 | |
224 | return altsetting; |
225 | } |
226 | |
227 | static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) |
228 | { |
229 | struct usb_host_interface *intf = serial->interface->cur_altsetting; |
230 | struct device *dev = &serial->dev->dev; |
231 | int retval = -ENODEV; |
232 | __u8 nintf; |
233 | __u8 ifnum; |
234 | int altsetting = -1; |
235 | bool sendsetup = false; |
236 | |
237 | /* we only support vendor specific functions */ |
238 | if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) |
239 | goto done; |
240 | |
241 | nintf = serial->dev->actconfig->desc.bNumInterfaces; |
242 | dev_dbg(dev, "Num Interfaces = %d\n" , nintf); |
243 | ifnum = intf->desc.bInterfaceNumber; |
244 | dev_dbg(dev, "This Interface = %d\n" , ifnum); |
245 | |
246 | if (nintf == 1) { |
247 | /* QDL mode */ |
248 | /* Gobi 2000 has a single altsetting, older ones have two */ |
249 | if (serial->interface->num_altsetting == 2) |
250 | intf = usb_altnum_to_altsetting(intf: serial->interface, altnum: 1); |
251 | else if (serial->interface->num_altsetting > 2) |
252 | goto done; |
253 | |
254 | if (intf && intf->desc.bNumEndpoints == 2 && |
255 | usb_endpoint_is_bulk_in(epd: &intf->endpoint[0].desc) && |
256 | usb_endpoint_is_bulk_out(epd: &intf->endpoint[1].desc)) { |
257 | dev_dbg(dev, "QDL port found\n" ); |
258 | |
259 | if (serial->interface->num_altsetting == 1) |
260 | retval = 0; /* Success */ |
261 | else |
262 | altsetting = 1; |
263 | } |
264 | goto done; |
265 | |
266 | } |
267 | |
268 | /* default to enabling interface */ |
269 | altsetting = 0; |
270 | |
271 | /* |
272 | * Composite mode; don't bind to the QMI/net interface as that |
273 | * gets handled by other drivers. |
274 | */ |
275 | |
276 | switch (id->driver_info) { |
277 | case QCSERIAL_G1K: |
278 | /* |
279 | * Gobi 1K USB layout: |
280 | * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
281 | * 1: serial port (doesn't respond) |
282 | * 2: AT-capable modem port |
283 | * 3: QMI/net |
284 | */ |
285 | if (nintf < 3 || nintf > 4) { |
286 | dev_err(dev, "unknown number of interfaces: %d\n" , nintf); |
287 | altsetting = -1; |
288 | goto done; |
289 | } |
290 | |
291 | if (ifnum == 0) { |
292 | dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n" ); |
293 | altsetting = 1; |
294 | } else if (ifnum == 2) |
295 | dev_dbg(dev, "Modem port found\n" ); |
296 | else |
297 | altsetting = -1; |
298 | break; |
299 | case QCSERIAL_G2K: |
300 | /* handle non-standard layouts */ |
301 | if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) { |
302 | altsetting = handle_quectel_ec20(dev, ifnum); |
303 | goto done; |
304 | } |
305 | |
306 | /* |
307 | * Gobi 2K+ USB layout: |
308 | * 0: QMI/net |
309 | * 1: DM/DIAG (use libqcdm from ModemManager for communication) |
310 | * 2: AT-capable modem port |
311 | * 3: NMEA |
312 | */ |
313 | if (nintf < 3 || nintf > 4) { |
314 | dev_err(dev, "unknown number of interfaces: %d\n" , nintf); |
315 | altsetting = -1; |
316 | goto done; |
317 | } |
318 | |
319 | switch (ifnum) { |
320 | case 0: |
321 | /* Don't claim the QMI/net interface */ |
322 | altsetting = -1; |
323 | break; |
324 | case 1: |
325 | dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n" ); |
326 | break; |
327 | case 2: |
328 | dev_dbg(dev, "Modem port found\n" ); |
329 | break; |
330 | case 3: |
331 | /* |
332 | * NMEA (serial line 9600 8N1) |
333 | * # echo "\$GPS_START" > /dev/ttyUSBx |
334 | * # echo "\$GPS_STOP" > /dev/ttyUSBx |
335 | */ |
336 | dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n" ); |
337 | break; |
338 | } |
339 | break; |
340 | case QCSERIAL_SWI: |
341 | /* |
342 | * Sierra Wireless layout: |
343 | * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
344 | * 2: NMEA |
345 | * 3: AT-capable modem port |
346 | * 8: QMI/net |
347 | */ |
348 | switch (ifnum) { |
349 | case 0: |
350 | dev_dbg(dev, "DM/DIAG interface found\n" ); |
351 | break; |
352 | case 2: |
353 | dev_dbg(dev, "NMEA GPS interface found\n" ); |
354 | sendsetup = true; |
355 | break; |
356 | case 3: |
357 | dev_dbg(dev, "Modem port found\n" ); |
358 | sendsetup = true; |
359 | break; |
360 | default: |
361 | /* don't claim any unsupported interface */ |
362 | altsetting = -1; |
363 | break; |
364 | } |
365 | break; |
366 | case QCSERIAL_HWI: |
367 | /* |
368 | * Huawei devices map functions by subclass + protocol |
369 | * instead of interface numbers. The protocol identify |
370 | * a specific function, while the subclass indicate a |
371 | * specific firmware source |
372 | * |
373 | * This is a list of functions known to be non-serial. The rest |
374 | * are assumed to be serial and will be handled by this driver |
375 | */ |
376 | switch (intf->desc.bInterfaceProtocol) { |
377 | /* QMI combined (qmi_wwan) */ |
378 | case 0x07: |
379 | case 0x37: |
380 | case 0x67: |
381 | /* QMI data (qmi_wwan) */ |
382 | case 0x08: |
383 | case 0x38: |
384 | case 0x68: |
385 | /* QMI control (qmi_wwan) */ |
386 | case 0x09: |
387 | case 0x39: |
388 | case 0x69: |
389 | /* NCM like (huawei_cdc_ncm) */ |
390 | case 0x16: |
391 | case 0x46: |
392 | case 0x76: |
393 | altsetting = -1; |
394 | break; |
395 | default: |
396 | dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n" , |
397 | intf->desc.bInterfaceClass, |
398 | intf->desc.bInterfaceSubClass, |
399 | intf->desc.bInterfaceProtocol); |
400 | } |
401 | break; |
402 | default: |
403 | dev_err(dev, "unsupported device layout type: %lu\n" , |
404 | id->driver_info); |
405 | break; |
406 | } |
407 | |
408 | done: |
409 | if (altsetting >= 0) { |
410 | retval = usb_set_interface(dev: serial->dev, ifnum, alternate: altsetting); |
411 | if (retval < 0) { |
412 | dev_err(dev, |
413 | "Could not set interface, error %d\n" , |
414 | retval); |
415 | retval = -ENODEV; |
416 | } |
417 | } |
418 | |
419 | if (!retval) |
420 | usb_set_serial_data(serial, data: (void *)(unsigned long)sendsetup); |
421 | |
422 | return retval; |
423 | } |
424 | |
425 | static int qc_attach(struct usb_serial *serial) |
426 | { |
427 | struct usb_wwan_intf_private *data; |
428 | bool sendsetup; |
429 | |
430 | data = kzalloc(size: sizeof(*data), GFP_KERNEL); |
431 | if (!data) |
432 | return -ENOMEM; |
433 | |
434 | sendsetup = !!(unsigned long)(usb_get_serial_data(serial)); |
435 | if (sendsetup) |
436 | data->use_send_setup = 1; |
437 | |
438 | spin_lock_init(&data->susp_lock); |
439 | |
440 | usb_set_serial_data(serial, data); |
441 | |
442 | return 0; |
443 | } |
444 | |
445 | static void qc_release(struct usb_serial *serial) |
446 | { |
447 | struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); |
448 | |
449 | usb_set_serial_data(serial, NULL); |
450 | kfree(objp: priv); |
451 | } |
452 | |
453 | static struct usb_serial_driver qcdevice = { |
454 | .driver = { |
455 | .owner = THIS_MODULE, |
456 | .name = "qcserial" , |
457 | }, |
458 | .description = "Qualcomm USB modem" , |
459 | .id_table = id_table, |
460 | .num_ports = 1, |
461 | .probe = qcprobe, |
462 | .open = usb_wwan_open, |
463 | .close = usb_wwan_close, |
464 | .dtr_rts = usb_wwan_dtr_rts, |
465 | .write = usb_wwan_write, |
466 | .write_room = usb_wwan_write_room, |
467 | .chars_in_buffer = usb_wwan_chars_in_buffer, |
468 | .tiocmget = usb_wwan_tiocmget, |
469 | .tiocmset = usb_wwan_tiocmset, |
470 | .attach = qc_attach, |
471 | .release = qc_release, |
472 | .port_probe = usb_wwan_port_probe, |
473 | .port_remove = usb_wwan_port_remove, |
474 | #ifdef CONFIG_PM |
475 | .suspend = usb_wwan_suspend, |
476 | .resume = usb_wwan_resume, |
477 | #endif |
478 | }; |
479 | |
480 | static struct usb_serial_driver * const serial_drivers[] = { |
481 | &qcdevice, NULL |
482 | }; |
483 | |
484 | module_usb_serial_driver(serial_drivers, id_table); |
485 | |
486 | MODULE_AUTHOR(DRIVER_AUTHOR); |
487 | MODULE_DESCRIPTION(DRIVER_DESC); |
488 | MODULE_LICENSE("GPL v2" ); |
489 | |