Commit | Line | Data |
---|---|---|
69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
40d2ff32 EP |
4 | Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>, |
5 | ||
6 | Copyright (C) 2008, 2009 Elina Pasheva, Matthew Safar, Rory Filer | |
7 | <linux@sierrawireless.com> | |
033a3fb9 KL |
8 | |
9 | IMPORTANT DISCLAIMER: This driver is not commercially supported by | |
10 | Sierra Wireless. Use at your own risk. | |
11 | ||
12 | This driver is free software; you can redistribute it and/or modify | |
13 | it under the terms of Version 2 of the GNU General Public License as | |
14 | published by the Free Software Foundation. | |
15 | ||
16 | Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de> | |
17 | Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> | |
033a3fb9 | 18 | */ |
3a2b808e EP |
19 | /* Uncomment to log function calls */ |
20 | /* #define DEBUG */ | |
21 | #define DRIVER_VERSION "v.1.7.16" | |
40d2ff32 | 22 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" |
033a3fb9 | 23 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
24 | |
25 | #include <linux/kernel.h> | |
033a3fb9 KL |
26 | #include <linux/jiffies.h> |
27 | #include <linux/errno.h> | |
69de51fd | 28 | #include <linux/tty.h> |
033a3fb9 | 29 | #include <linux/tty_flip.h> |
69de51fd KL |
30 | #include <linux/module.h> |
31 | #include <linux/usb.h> | |
a969888c | 32 | #include <linux/usb/serial.h> |
69de51fd | 33 | |
228426ed KL |
34 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
35 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 36 | |
3a2b808e EP |
37 | #define N_IN_URB_HM 8 |
38 | #define N_OUT_URB_HM 64 | |
39 | #define N_IN_URB 4 | |
40 | #define N_OUT_URB 4 | |
112225b1 KL |
41 | #define IN_BUFLEN 4096 |
42 | ||
40d2ff32 EP |
43 | #define MAX_TRANSFER (PAGE_SIZE - 512) |
44 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
45 | allocations > PAGE_SIZE and the number of packets in a page | |
46 | is an integer 512 is the largest possible packet on EHCI */ | |
47 | ||
112225b1 | 48 | static int debug; |
228426ed | 49 | static int nmea; |
112225b1 | 50 | |
4db2299d EP |
51 | /* Used in interface blacklisting */ |
52 | struct sierra_iface_info { | |
53 | const u32 infolen; /* number of interface numbers on blacklist */ | |
54 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
55 | }; | |
56 | ||
e6929a90 ON |
57 | struct sierra_intf_private { |
58 | spinlock_t susp_lock; | |
59 | unsigned int suspended:1; | |
60 | int in_flight; | |
61 | }; | |
62 | ||
82a24e68 | 63 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
64 | { |
65 | int result; | |
5d44b361 | 66 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 67 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 68 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 69 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
70 | swiState, /* __u16 value */ |
71 | 0, /* __u16 index */ | |
72 | NULL, /* void *data */ | |
73 | 0, /* __u16 size */ | |
74 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
75 | return result; |
76 | } | |
77 | ||
228426ed | 78 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
79 | { |
80 | int result; | |
5d44b361 | 81 | dev_dbg(&udev->dev, "%s\n", __func__); |
228426ed KL |
82 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
83 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 84 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
85 | enable, /* __u16 value */ |
86 | 0x0000, /* __u16 index */ | |
87 | NULL, /* void *data */ | |
88 | 0, /* __u16 size */ | |
89 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
90 | return result; | |
91 | } | |
92 | ||
93 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
94 | { | |
9636b683 EP |
95 | int num_ports = 0; |
96 | u8 ifnum, numendpoints; | |
228426ed | 97 | |
9636b683 | 98 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
228426ed | 99 | |
9636b683 EP |
100 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
101 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 102 | |
9636b683 EP |
103 | /* Dummy interface present on some SKUs should be ignored */ |
104 | if (ifnum == 0x99) | |
105 | num_ports = 0; | |
106 | else if (numendpoints <= 3) | |
107 | num_ports = 1; | |
108 | else | |
109 | num_ports = (numendpoints-1)/2; | |
110 | return num_ports; | |
228426ed KL |
111 | } |
112 | ||
4db2299d EP |
113 | static int is_blacklisted(const u8 ifnum, |
114 | const struct sierra_iface_info *blacklist) | |
115 | { | |
116 | const u8 *info; | |
117 | int i; | |
118 | ||
119 | if (blacklist) { | |
120 | info = blacklist->ifaceinfo; | |
121 | ||
122 | for (i = 0; i < blacklist->infolen; i++) { | |
123 | if (info[i] == ifnum) | |
124 | return 1; | |
125 | } | |
126 | } | |
127 | return 0; | |
128 | } | |
129 | ||
3a2b808e EP |
130 | static int is_himemory(const u8 ifnum, |
131 | const struct sierra_iface_info *himemorylist) | |
132 | { | |
133 | const u8 *info; | |
134 | int i; | |
135 | ||
136 | if (himemorylist) { | |
137 | info = himemorylist->ifaceinfo; | |
138 | ||
139 | for (i=0; i < himemorylist->infolen; i++) { | |
140 | if (info[i] == ifnum) | |
141 | return 1; | |
142 | } | |
143 | } | |
144 | return 0; | |
145 | } | |
146 | ||
7106967e KL |
147 | static int sierra_calc_interface(struct usb_serial *serial) |
148 | { | |
4e0fee82 KL |
149 | int interface; |
150 | struct usb_interface *p_interface; | |
151 | struct usb_host_interface *p_host_interface; | |
5d44b361 | 152 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
7106967e | 153 | |
4e0fee82 KL |
154 | /* Get the interface structure pointer from the serial struct */ |
155 | p_interface = serial->interface; | |
7106967e | 156 | |
4e0fee82 KL |
157 | /* Get a pointer to the host interface structure */ |
158 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 159 | |
4e0fee82 KL |
160 | /* read the interface descriptor for this active altsetting |
161 | * to find out the interface number we are on | |
162 | */ | |
163 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 164 | |
4e0fee82 | 165 | return interface; |
7106967e KL |
166 | } |
167 | ||
228426ed KL |
168 | static int sierra_probe(struct usb_serial *serial, |
169 | const struct usb_device_id *id) | |
170 | { | |
171 | int result = 0; | |
112225b1 | 172 | struct usb_device *udev; |
e6929a90 | 173 | struct sierra_intf_private *data; |
228426ed | 174 | u8 ifnum; |
112225b1 | 175 | |
228426ed | 176 | udev = serial->dev; |
9636b683 | 177 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 178 | |
e3173b22 | 179 | ifnum = sierra_calc_interface(serial); |
e3173b22 KL |
180 | /* |
181 | * If this interface supports more than 1 alternate | |
182 | * select the 2nd one | |
183 | */ | |
184 | if (serial->interface->num_altsetting == 2) { | |
185 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
186 | ifnum); | |
187 | /* We know the alternate setting is 1 for the MC8785 */ | |
188 | usb_set_interface(udev, ifnum, 1); | |
189 | } | |
7106967e | 190 | |
4db2299d EP |
191 | /* ifnum could have changed - by calling usb_set_interface */ |
192 | ifnum = sierra_calc_interface(serial); | |
193 | ||
194 | if (is_blacklisted(ifnum, | |
195 | (struct sierra_iface_info *)id->driver_info)) { | |
196 | dev_dbg(&serial->dev->dev, | |
197 | "Ignoring blacklisted interface #%d\n", ifnum); | |
198 | return -ENODEV; | |
199 | } | |
200 | ||
e6929a90 ON |
201 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
202 | if (!data) | |
203 | return -ENOMEM; | |
204 | spin_lock_init(&data->susp_lock); | |
205 | ||
228426ed | 206 | return result; |
112225b1 | 207 | } |
033a3fb9 | 208 | |
3a2b808e EP |
209 | /* interfaces with higher memory requirements */ |
210 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
211 | static const struct sierra_iface_info typeA_interface_list = { | |
212 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
213 | .ifaceinfo = hi_memory_typeA_ifaces, | |
214 | }; | |
215 | ||
216 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
217 | static const struct sierra_iface_info typeB_interface_list = { | |
218 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
219 | .ifaceinfo = hi_memory_typeB_ifaces, | |
220 | }; | |
221 | ||
222 | /* 'blacklist' of interfaces not served by this driver */ | |
4db2299d EP |
223 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; |
224 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
225 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
226 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
227 | }; | |
228 | ||
69de51fd | 229 | static struct usb_device_id id_table [] = { |
c5f3d87d EP |
230 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
231 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
232 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ | |
233 | ||
e43062dd | 234 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 235 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 236 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 237 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 238 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
239 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
240 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
241 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 242 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 243 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 244 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 245 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
c5f3d87d | 246 | /* Sierra Wireless C597 */ |
4e0fee82 | 247 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 248 | /* Sierra Wireless T598 */ |
e3173b22 | 249 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
250 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
251 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
252 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
253 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 254 | |
69de51fd KL |
255 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
256 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
257 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
258 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
259 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
260 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 261 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 262 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 263 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 264 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 265 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 266 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 267 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
268 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
269 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
270 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
271 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
272 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
273 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 274 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 275 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
276 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
277 | { USB_DEVICE(0x1199, 0x683C) }, | |
278 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
279 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
280 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
281 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
282 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
283 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
284 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 285 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 286 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
287 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
288 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
289 | /* Sierra Wireless C885 */ | |
290 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 291 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 292 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 293 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 294 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 295 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 296 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 297 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
298 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
299 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
300 | }, | |
1ebca9da | 301 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 302 | |
033a3fb9 KL |
303 | { } |
304 | }; | |
964ee1de | 305 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 306 | |
69de51fd | 307 | static struct usb_driver sierra_driver = { |
033a3fb9 | 308 | .name = "sierra", |
228426ed | 309 | .probe = usb_serial_probe, |
033a3fb9 | 310 | .disconnect = usb_serial_disconnect, |
e6929a90 ON |
311 | .suspend = usb_serial_suspend, |
312 | .resume = usb_serial_resume, | |
033a3fb9 | 313 | .id_table = id_table, |
964ee1de | 314 | .no_dynamic_id = 1, |
e6929a90 | 315 | .supports_autosuspend = 1, |
033a3fb9 KL |
316 | }; |
317 | ||
033a3fb9 | 318 | struct sierra_port_private { |
17c23274 GKH |
319 | spinlock_t lock; /* lock the structure */ |
320 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
321 | struct usb_anchor active; |
322 | struct usb_anchor delayed; | |
17c23274 | 323 | |
3a2b808e EP |
324 | int num_out_urbs; |
325 | int num_in_urbs; | |
4f4f9c53 | 326 | /* Input endpoints and buffers for this port */ |
3a2b808e | 327 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
328 | |
329 | /* Settings for the port */ | |
330 | int rts_state; /* Handshaking pins (outputs) */ | |
331 | int dtr_state; | |
332 | int cts_state; /* Handshaking pins (inputs) */ | |
333 | int dsr_state; | |
334 | int dcd_state; | |
335 | int ri_state; | |
e6929a90 | 336 | unsigned int opened:1; |
033a3fb9 KL |
337 | }; |
338 | ||
335f8514 | 339 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 340 | { |
964ee1de GKH |
341 | struct usb_serial *serial = port->serial; |
342 | struct sierra_port_private *portdata; | |
228426ed | 343 | __u16 interface = 0; |
335f8514 | 344 | int val = 0; |
3c77d513 EP |
345 | int do_send = 0; |
346 | int retval; | |
033a3fb9 | 347 | |
5d44b361 | 348 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 349 | |
964ee1de | 350 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 351 | |
335f8514 AC |
352 | if (portdata->dtr_state) |
353 | val |= 0x01; | |
354 | if (portdata->rts_state) | |
355 | val |= 0x02; | |
356 | ||
357 | /* If composite device then properly report interface */ | |
00b040de | 358 | if (serial->num_ports == 1) { |
335f8514 | 359 | interface = sierra_calc_interface(serial); |
00b040de AC |
360 | /* Control message is sent only to interfaces with |
361 | * interrupt_in endpoints | |
362 | */ | |
363 | if (port->interrupt_in_urb) { | |
364 | /* send control message */ | |
3c77d513 | 365 | do_send = 1; |
00b040de AC |
366 | } |
367 | } | |
335f8514 AC |
368 | |
369 | /* Otherwise the need to do non-composite mapping */ | |
370 | else { | |
371 | if (port->bulk_out_endpointAddress == 2) | |
372 | interface = 0; | |
373 | else if (port->bulk_out_endpointAddress == 4) | |
374 | interface = 1; | |
375 | else if (port->bulk_out_endpointAddress == 5) | |
376 | interface = 2; | |
3c77d513 EP |
377 | |
378 | do_send = 1; | |
00b040de | 379 | } |
3c77d513 EP |
380 | if (!do_send) |
381 | return 0; | |
382 | ||
383 | usb_autopm_get_interface(serial->interface); | |
384 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
385 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
386 | usb_autopm_put_interface(serial->interface); | |
387 | ||
388 | return retval; | |
69de51fd KL |
389 | } |
390 | ||
95da310e AC |
391 | static void sierra_set_termios(struct tty_struct *tty, |
392 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 393 | { |
5d44b361 | 394 | dev_dbg(&port->dev, "%s\n", __func__); |
95da310e | 395 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 396 | sierra_send_setup(port); |
033a3fb9 KL |
397 | } |
398 | ||
95da310e | 399 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 400 | { |
95da310e | 401 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
402 | unsigned int value; |
403 | struct sierra_port_private *portdata; | |
404 | ||
5d44b361 | 405 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 KL |
406 | portdata = usb_get_serial_port_data(port); |
407 | ||
408 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
409 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
410 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
411 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
412 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
413 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
414 | ||
415 | return value; | |
416 | } | |
417 | ||
95da310e | 418 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
419 | unsigned int set, unsigned int clear) |
420 | { | |
95da310e | 421 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
422 | struct sierra_port_private *portdata; |
423 | ||
424 | portdata = usb_get_serial_port_data(port); | |
425 | ||
426 | if (set & TIOCM_RTS) | |
427 | portdata->rts_state = 1; | |
428 | if (set & TIOCM_DTR) | |
429 | portdata->dtr_state = 1; | |
430 | ||
431 | if (clear & TIOCM_RTS) | |
432 | portdata->rts_state = 0; | |
433 | if (clear & TIOCM_DTR) | |
434 | portdata->dtr_state = 0; | |
335f8514 | 435 | return sierra_send_setup(port); |
033a3fb9 KL |
436 | } |
437 | ||
b9a44bc1 EP |
438 | static void sierra_release_urb(struct urb *urb) |
439 | { | |
440 | struct usb_serial_port *port; | |
441 | if (urb) { | |
442 | port = urb->context; | |
443 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
444 | kfree(urb->transfer_buffer); | |
445 | usb_free_urb(urb); | |
446 | } | |
447 | } | |
448 | ||
17c23274 GKH |
449 | static void sierra_outdat_callback(struct urb *urb) |
450 | { | |
451 | struct usb_serial_port *port = urb->context; | |
452 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 453 | struct sierra_intf_private *intfdata; |
17c23274 | 454 | int status = urb->status; |
17c23274 | 455 | |
5d44b361 | 456 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
e6929a90 | 457 | intfdata = port->serial->private; |
17c23274 GKH |
458 | |
459 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
460 | kfree(urb->transfer_buffer); | |
e6929a90 | 461 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 462 | if (status) |
7384a922 | 463 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 464 | "received: %d\n", __func__, status); |
17c23274 | 465 | |
e6929a90 | 466 | spin_lock(&portdata->lock); |
17c23274 | 467 | --portdata->outstanding_urbs; |
e6929a90 ON |
468 | spin_unlock(&portdata->lock); |
469 | spin_lock(&intfdata->susp_lock); | |
470 | --intfdata->in_flight; | |
471 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
472 | |
473 | usb_serial_port_softint(port); | |
474 | } | |
475 | ||
033a3fb9 | 476 | /* Write */ |
95da310e AC |
477 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
478 | const unsigned char *buf, int count) | |
033a3fb9 | 479 | { |
17c23274 | 480 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
e6929a90 | 481 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
482 | struct usb_serial *serial = port->serial; |
483 | unsigned long flags; | |
484 | unsigned char *buffer; | |
485 | struct urb *urb; | |
40d2ff32 EP |
486 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
487 | int retval = 0; | |
488 | ||
489 | /* verify that we actually have some data to write */ | |
490 | if (count == 0) | |
491 | return 0; | |
033a3fb9 KL |
492 | |
493 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 494 | intfdata = serial->private; |
033a3fb9 | 495 | |
0b10395a | 496 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 497 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
498 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
499 | portdata->outstanding_urbs); | |
3a2b808e | 500 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 501 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 502 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
503 | return 0; |
504 | } | |
505 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
506 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
507 | portdata->outstanding_urbs); | |
17c23274 GKH |
508 | spin_unlock_irqrestore(&portdata->lock, flags); |
509 | ||
e6929a90 ON |
510 | retval = usb_autopm_get_interface_async(serial->interface); |
511 | if (retval < 0) { | |
512 | spin_lock_irqsave(&portdata->lock, flags); | |
513 | portdata->outstanding_urbs--; | |
514 | spin_unlock_irqrestore(&portdata->lock, flags); | |
515 | goto error_simple; | |
516 | } | |
517 | ||
40d2ff32 | 518 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
519 | if (!buffer) { |
520 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 521 | retval = -ENOMEM; |
17c23274 GKH |
522 | goto error_no_buffer; |
523 | } | |
033a3fb9 | 524 | |
17c23274 GKH |
525 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
526 | if (!urb) { | |
527 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 528 | retval = -ENOMEM; |
17c23274 GKH |
529 | goto error_no_urb; |
530 | } | |
033a3fb9 | 531 | |
40d2ff32 | 532 | memcpy(buffer, buf, writesize); |
033a3fb9 | 533 | |
40d2ff32 | 534 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
535 | |
536 | usb_fill_bulk_urb(urb, serial->dev, | |
537 | usb_sndbulkpipe(serial->dev, | |
538 | port->bulk_out_endpointAddress), | |
40d2ff32 | 539 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 540 | |
238ebd13 EP |
541 | /* Handle the need to send a zero length packet */ |
542 | urb->transfer_flags |= URB_ZERO_PACKET; | |
543 | ||
e6929a90 ON |
544 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
545 | ||
546 | if (intfdata->suspended) { | |
547 | usb_anchor_urb(urb, &portdata->delayed); | |
548 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
549 | goto skip_power; | |
550 | } else { | |
551 | usb_anchor_urb(urb, &portdata->active); | |
552 | } | |
17c23274 | 553 | /* send it down the pipe */ |
40d2ff32 EP |
554 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
555 | if (retval) { | |
e6929a90 ON |
556 | usb_unanchor_urb(urb); |
557 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 558 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 559 | "with status = %d\n", __func__, retval); |
17c23274 | 560 | goto error; |
e6929a90 ON |
561 | } else { |
562 | intfdata->in_flight++; | |
563 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
564 | } |
565 | ||
e6929a90 | 566 | skip_power: |
17c23274 GKH |
567 | /* we are done with this urb, so let the host driver |
568 | * really free it when it is finished with it */ | |
569 | usb_free_urb(urb); | |
570 | ||
40d2ff32 | 571 | return writesize; |
17c23274 GKH |
572 | error: |
573 | usb_free_urb(urb); | |
574 | error_no_urb: | |
575 | kfree(buffer); | |
576 | error_no_buffer: | |
577 | spin_lock_irqsave(&portdata->lock, flags); | |
578 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
579 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
580 | portdata->outstanding_urbs); | |
17c23274 | 581 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
582 | usb_autopm_put_interface_async(serial->interface); |
583 | error_simple: | |
40d2ff32 | 584 | return retval; |
033a3fb9 KL |
585 | } |
586 | ||
587 | static void sierra_indat_callback(struct urb *urb) | |
588 | { | |
589 | int err; | |
590 | int endpoint; | |
591 | struct usb_serial_port *port; | |
592 | struct tty_struct *tty; | |
593 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 594 | int status = urb->status; |
033a3fb9 | 595 | |
033a3fb9 | 596 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
597 | port = urb->context; |
598 | ||
599 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
033a3fb9 | 600 | |
17dd2215 | 601 | if (status) { |
7384a922 | 602 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 603 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 604 | } else { |
033a3fb9 | 605 | if (urb->actual_length) { |
d95186d1 | 606 | tty = tty_port_tty_get(&port->port); |
b0cda8c5 | 607 | |
033a3fb9 KL |
608 | tty_buffer_request_room(tty, urb->actual_length); |
609 | tty_insert_flip_string(tty, data, urb->actual_length); | |
610 | tty_flip_buffer_push(tty); | |
b0cda8c5 | 611 | |
4a90f09b | 612 | tty_kref_put(tty); |
b0cda8c5 EP |
613 | usb_serial_debug_data(debug, &port->dev, __func__, |
614 | urb->actual_length, data); | |
615 | } else { | |
7384a922 | 616 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 617 | " received\n", __func__); |
033a3fb9 KL |
618 | } |
619 | } | |
b0cda8c5 EP |
620 | |
621 | /* Resubmit urb so we continue receiving */ | |
622 | if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { | |
e6929a90 | 623 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 EP |
624 | err = usb_submit_urb(urb, GFP_ATOMIC); |
625 | if (err) | |
626 | dev_err(&port->dev, "resubmit read urb failed." | |
627 | "(%d)\n", err); | |
628 | } | |
629 | ||
033a3fb9 KL |
630 | return; |
631 | } | |
632 | ||
033a3fb9 KL |
633 | static void sierra_instat_callback(struct urb *urb) |
634 | { | |
635 | int err; | |
17dd2215 | 636 | int status = urb->status; |
cdc97792 | 637 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
638 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
639 | struct usb_serial *serial = port->serial; | |
640 | ||
5d44b361 | 641 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 642 | urb, port, portdata); |
033a3fb9 | 643 | |
17dd2215 | 644 | if (status == 0) { |
033a3fb9 KL |
645 | struct usb_ctrlrequest *req_pkt = |
646 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
647 | ||
648 | if (!req_pkt) { | |
7384a922 KL |
649 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
650 | __func__); | |
033a3fb9 KL |
651 | return; |
652 | } | |
653 | if ((req_pkt->bRequestType == 0xA1) && | |
654 | (req_pkt->bRequest == 0x20)) { | |
655 | int old_dcd_state; | |
656 | unsigned char signals = *((unsigned char *) | |
657 | urb->transfer_buffer + | |
658 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 659 | struct tty_struct *tty; |
033a3fb9 | 660 | |
5d44b361 | 661 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 662 | signals); |
033a3fb9 KL |
663 | |
664 | old_dcd_state = portdata->dcd_state; | |
665 | portdata->cts_state = 1; | |
666 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
667 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
668 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
669 | ||
4a90f09b AC |
670 | tty = tty_port_tty_get(&port->port); |
671 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 672 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
673 | tty_hangup(tty); |
674 | tty_kref_put(tty); | |
033a3fb9 | 675 | } else { |
5d44b361 | 676 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
677 | __func__, req_pkt->bRequestType, |
678 | req_pkt->bRequest); | |
033a3fb9 KL |
679 | } |
680 | } else | |
5d44b361 | 681 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
682 | |
683 | /* Resubmit urb so we continue receiving IRQ data */ | |
c76a23da | 684 | if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 685 | usb_mark_last_busy(serial->dev); |
033a3fb9 KL |
686 | urb->dev = serial->dev; |
687 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
688 | if (err) | |
c76a23da EP |
689 | dev_err(&port->dev, "%s: resubmit intr urb " |
690 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
691 | } |
692 | } | |
693 | ||
95da310e | 694 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 695 | { |
95da310e | 696 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
697 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
698 | unsigned long flags; | |
033a3fb9 | 699 | |
5d44b361 | 700 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
033a3fb9 | 701 | |
17c23274 GKH |
702 | /* try to give a good number back based on if we have any free urbs at |
703 | * this point in time */ | |
704 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 705 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 706 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 707 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 708 | return 0; |
033a3fb9 | 709 | } |
17c23274 | 710 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 711 | |
17c23274 | 712 | return 2048; |
033a3fb9 KL |
713 | } |
714 | ||
b9a44bc1 | 715 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 716 | { |
9e85c5f6 | 717 | int i; |
b9a44bc1 | 718 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 719 | |
3a2b808e | 720 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 721 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 722 | |
b9a44bc1 EP |
723 | usb_kill_urb(port->interrupt_in_urb); |
724 | } | |
033a3fb9 | 725 | |
b9a44bc1 EP |
726 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
727 | { | |
728 | int ok_cnt; | |
729 | int err = -EINVAL; | |
730 | int i; | |
731 | struct urb *urb; | |
732 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 733 | |
b9a44bc1 | 734 | ok_cnt = 0; |
3a2b808e | 735 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 736 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 737 | if (!urb) |
033a3fb9 | 738 | continue; |
b9a44bc1 EP |
739 | err = usb_submit_urb(urb, mem_flags); |
740 | if (err) { | |
741 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
742 | __func__, err); | |
743 | } else { | |
744 | ok_cnt++; | |
033a3fb9 | 745 | } |
b9a44bc1 | 746 | } |
033a3fb9 | 747 | |
b9a44bc1 EP |
748 | if (ok_cnt && port->interrupt_in_urb) { |
749 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
750 | if (err) { | |
751 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
752 | __func__, err); | |
033a3fb9 KL |
753 | } |
754 | } | |
755 | ||
b9a44bc1 EP |
756 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
757 | return 0; | |
758 | else | |
759 | return err; | |
760 | } | |
761 | ||
762 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
763 | int dir, void *ctx, int len, | |
764 | gfp_t mem_flags, | |
765 | usb_complete_t callback) | |
766 | { | |
767 | struct urb *urb; | |
768 | u8 *buf; | |
769 | ||
770 | if (endpoint == -1) | |
771 | return NULL; | |
033a3fb9 | 772 | |
b9a44bc1 EP |
773 | urb = usb_alloc_urb(0, mem_flags); |
774 | if (urb == NULL) { | |
775 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
776 | __func__, endpoint); | |
777 | return NULL; | |
9e85c5f6 | 778 | } |
b9a44bc1 EP |
779 | |
780 | buf = kmalloc(len, mem_flags); | |
781 | if (buf) { | |
782 | /* Fill URB using supplied data */ | |
783 | usb_fill_bulk_urb(urb, serial->dev, | |
784 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
785 | buf, len, callback, ctx); | |
786 | ||
787 | /* debug */ | |
788 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
789 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
790 | } else { | |
791 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
792 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
793 | ||
794 | sierra_release_urb(urb); | |
795 | urb = NULL; | |
796 | } | |
797 | ||
798 | return urb; | |
033a3fb9 KL |
799 | } |
800 | ||
b9a44bc1 | 801 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 802 | { |
b9a44bc1 | 803 | int i; |
033a3fb9 KL |
804 | struct usb_serial *serial = port->serial; |
805 | struct sierra_port_private *portdata; | |
e6929a90 ON |
806 | struct sierra_intf_private *intfdata = port->serial->private; |
807 | ||
033a3fb9 | 808 | |
b9a44bc1 | 809 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 810 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
811 | |
812 | portdata->rts_state = 0; | |
813 | portdata->dtr_state = 0; | |
033a3fb9 KL |
814 | |
815 | if (serial->dev) { | |
e33fe4d8 | 816 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
817 | if (!serial->disconnected) { |
818 | serial->interface->needs_remote_wakeup = 0; | |
819 | usb_autopm_get_interface(serial->interface); | |
335f8514 | 820 | sierra_send_setup(port); |
b64dc0a5 | 821 | } |
e33fe4d8 | 822 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
823 | spin_lock_irq(&intfdata->susp_lock); |
824 | portdata->opened = 0; | |
825 | spin_unlock_irq(&intfdata->susp_lock); | |
826 | ||
b9a44bc1 EP |
827 | |
828 | /* Stop reading urbs */ | |
829 | sierra_stop_rx_urbs(port); | |
830 | /* .. and release them */ | |
3a2b808e | 831 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
832 | sierra_release_urb(portdata->in_urbs[i]); |
833 | portdata->in_urbs[i] = NULL; | |
834 | } | |
335f8514 AC |
835 | } |
836 | } | |
837 | ||
a509a7e4 | 838 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 839 | { |
b9a44bc1 EP |
840 | struct sierra_port_private *portdata; |
841 | struct usb_serial *serial = port->serial; | |
e6929a90 | 842 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 843 | int i; |
b9a44bc1 EP |
844 | int err; |
845 | int endpoint; | |
846 | struct urb *urb; | |
847 | ||
848 | portdata = usb_get_serial_port_data(port); | |
849 | ||
5d44b361 | 850 | dev_dbg(&port->dev, "%s\n", __func__); |
b9a44bc1 EP |
851 | |
852 | /* Set some sane defaults */ | |
853 | portdata->rts_state = 1; | |
854 | portdata->dtr_state = 1; | |
855 | ||
856 | ||
857 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 858 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
859 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
860 | IN_BUFLEN, GFP_KERNEL, | |
861 | sierra_indat_callback); | |
862 | portdata->in_urbs[i] = urb; | |
863 | } | |
864 | /* clear halt condition */ | |
865 | usb_clear_halt(serial->dev, | |
866 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
867 | ||
868 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
869 | if (err) { | |
870 | /* get rid of everything as in close */ | |
871 | sierra_close(port); | |
b64dc0a5 EP |
872 | /* restore balance for autopm */ |
873 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
874 | return err; |
875 | } | |
876 | sierra_send_setup(port); | |
877 | ||
e6929a90 ON |
878 | serial->interface->needs_remote_wakeup = 1; |
879 | spin_lock_irq(&intfdata->susp_lock); | |
880 | portdata->opened = 1; | |
881 | spin_unlock_irq(&intfdata->susp_lock); | |
882 | usb_autopm_put_interface(serial->interface); | |
883 | ||
b9a44bc1 EP |
884 | return 0; |
885 | } | |
886 | ||
887 | ||
888 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
889 | { | |
335f8514 AC |
890 | struct usb_serial *serial = port->serial; |
891 | struct sierra_port_private *portdata; | |
033a3fb9 | 892 | |
335f8514 | 893 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
894 | portdata->rts_state = on; |
895 | portdata->dtr_state = on; | |
335f8514 AC |
896 | |
897 | if (serial->dev) { | |
b9a44bc1 EP |
898 | mutex_lock(&serial->disc_mutex); |
899 | if (!serial->disconnected) | |
900 | sierra_send_setup(port); | |
901 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 902 | } |
033a3fb9 KL |
903 | } |
904 | ||
033a3fb9 KL |
905 | static int sierra_startup(struct usb_serial *serial) |
906 | { | |
033a3fb9 KL |
907 | struct usb_serial_port *port; |
908 | struct sierra_port_private *portdata; | |
3a2b808e | 909 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 910 | int i; |
3a2b808e | 911 | u8 ifnum; |
033a3fb9 | 912 | |
5d44b361 | 913 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 914 | |
228426ed | 915 | /* Set Device mode to D0 */ |
112225b1 KL |
916 | sierra_set_power_state(serial->dev, 0x0000); |
917 | ||
228426ed KL |
918 | /* Check NMEA and set */ |
919 | if (nmea) | |
920 | sierra_vsc_set_nmea(serial->dev, 1); | |
921 | ||
033a3fb9 KL |
922 | /* Now setup per port private data */ |
923 | for (i = 0; i < serial->num_ports; i++) { | |
924 | port = serial->port[i]; | |
925 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
926 | if (!portdata) { | |
7384a922 | 927 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 928 | "sierra_port_private (%d) failed!\n", |
7384a922 | 929 | __func__, i); |
17c23274 | 930 | return -ENOMEM; |
033a3fb9 | 931 | } |
17c23274 | 932 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
933 | init_usb_anchor(&portdata->active); |
934 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
935 | ifnum = i; |
936 | /* Assume low memory requirements */ | |
937 | portdata->num_out_urbs = N_OUT_URB; | |
938 | portdata->num_in_urbs = N_IN_URB; | |
939 | ||
940 | /* Determine actual memory requirements */ | |
941 | if (serial->num_ports == 1) { | |
942 | /* Get interface number for composite device */ | |
943 | ifnum = sierra_calc_interface(serial); | |
944 | himemoryp = | |
945 | (struct sierra_iface_info *)&typeB_interface_list; | |
946 | if (is_himemory(ifnum, himemoryp)) { | |
947 | portdata->num_out_urbs = N_OUT_URB_HM; | |
948 | portdata->num_in_urbs = N_IN_URB_HM; | |
949 | } | |
950 | } | |
951 | else { | |
952 | himemoryp = | |
953 | (struct sierra_iface_info *)&typeA_interface_list; | |
954 | if (is_himemory(i, himemoryp)) { | |
955 | portdata->num_out_urbs = N_OUT_URB_HM; | |
956 | portdata->num_in_urbs = N_IN_URB_HM; | |
957 | } | |
958 | } | |
959 | dev_dbg(&serial->dev->dev, | |
960 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
961 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 962 | /* Set the port private data pointer */ |
033a3fb9 | 963 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
964 | } |
965 | ||
17c23274 | 966 | return 0; |
033a3fb9 KL |
967 | } |
968 | ||
7bae0a07 | 969 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 970 | { |
b9a44bc1 | 971 | int i; |
033a3fb9 KL |
972 | struct usb_serial_port *port; |
973 | struct sierra_port_private *portdata; | |
974 | ||
5d44b361 | 975 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 976 | |
033a3fb9 KL |
977 | for (i = 0; i < serial->num_ports; ++i) { |
978 | port = serial->port[i]; | |
f094e4f3 GKH |
979 | if (!port) |
980 | continue; | |
033a3fb9 | 981 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
982 | if (!portdata) |
983 | continue; | |
9e85c5f6 | 984 | kfree(portdata); |
033a3fb9 KL |
985 | } |
986 | } | |
987 | ||
cd604513 | 988 | #ifdef CONFIG_PM |
e6929a90 ON |
989 | static void stop_read_write_urbs(struct usb_serial *serial) |
990 | { | |
b64dc0a5 | 991 | int i; |
e6929a90 ON |
992 | struct usb_serial_port *port; |
993 | struct sierra_port_private *portdata; | |
994 | ||
995 | /* Stop reading/writing urbs */ | |
996 | for (i = 0; i < serial->num_ports; ++i) { | |
997 | port = serial->port[i]; | |
998 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 999 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
1000 | usb_kill_anchored_urbs(&portdata->active); |
1001 | } | |
1002 | } | |
1003 | ||
1004 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
1005 | { | |
1006 | struct sierra_intf_private *intfdata; | |
1007 | int b; | |
1008 | ||
fb34d537 | 1009 | if (message.event & PM_EVENT_AUTO) { |
e6929a90 ON |
1010 | intfdata = serial->private; |
1011 | spin_lock_irq(&intfdata->susp_lock); | |
1012 | b = intfdata->in_flight; | |
1013 | ||
1014 | if (b) { | |
1015 | spin_unlock_irq(&intfdata->susp_lock); | |
1016 | return -EBUSY; | |
1017 | } else { | |
1018 | intfdata->suspended = 1; | |
1019 | spin_unlock_irq(&intfdata->susp_lock); | |
1020 | } | |
1021 | } | |
1022 | stop_read_write_urbs(serial); | |
1023 | ||
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | static int sierra_resume(struct usb_serial *serial) | |
1028 | { | |
1029 | struct usb_serial_port *port; | |
1030 | struct sierra_intf_private *intfdata = serial->private; | |
1031 | struct sierra_port_private *portdata; | |
1032 | struct urb *urb; | |
1033 | int ec = 0; | |
1034 | int i, err; | |
1035 | ||
1036 | spin_lock_irq(&intfdata->susp_lock); | |
1037 | for (i = 0; i < serial->num_ports; i++) { | |
1038 | port = serial->port[i]; | |
1039 | portdata = usb_get_serial_port_data(port); | |
1040 | ||
1041 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1042 | usb_anchor_urb(urb, &portdata->active); | |
1043 | intfdata->in_flight++; | |
1044 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1045 | if (err < 0) { | |
1046 | intfdata->in_flight--; | |
1047 | usb_unanchor_urb(urb); | |
1048 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1049 | break; | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | if (portdata->opened) { | |
1054 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1055 | if (err) | |
1056 | ec++; | |
1057 | } | |
1058 | } | |
1059 | intfdata->suspended = 0; | |
1060 | spin_unlock_irq(&intfdata->susp_lock); | |
1061 | ||
1062 | return ec ? -EIO : 0; | |
1063 | } | |
cd604513 AM |
1064 | #else |
1065 | #define sierra_suspend NULL | |
1066 | #define sierra_resume NULL | |
1067 | #endif | |
e6929a90 | 1068 | |
228426ed | 1069 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1070 | .driver = { |
1071 | .owner = THIS_MODULE, | |
4e0fee82 | 1072 | .name = "sierra", |
964ee1de | 1073 | }, |
228426ed KL |
1074 | .description = "Sierra USB modem", |
1075 | .id_table = id_table, | |
d9b1b787 | 1076 | .usb_driver = &sierra_driver, |
228426ed KL |
1077 | .calc_num_ports = sierra_calc_num_ports, |
1078 | .probe = sierra_probe, | |
964ee1de GKH |
1079 | .open = sierra_open, |
1080 | .close = sierra_close, | |
335f8514 | 1081 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1082 | .write = sierra_write, |
1083 | .write_room = sierra_write_room, | |
964ee1de | 1084 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1085 | .tiocmget = sierra_tiocmget, |
1086 | .tiocmset = sierra_tiocmset, | |
1087 | .attach = sierra_startup, | |
7bae0a07 | 1088 | .release = sierra_release, |
e6929a90 ON |
1089 | .suspend = sierra_suspend, |
1090 | .resume = sierra_resume, | |
964ee1de GKH |
1091 | .read_int_callback = sierra_instat_callback, |
1092 | }; | |
1093 | ||
1094 | /* Functions used by new usb-serial code. */ | |
1095 | static int __init sierra_init(void) | |
1096 | { | |
1097 | int retval; | |
228426ed | 1098 | retval = usb_serial_register(&sierra_device); |
964ee1de | 1099 | if (retval) |
228426ed | 1100 | goto failed_device_register; |
964ee1de GKH |
1101 | |
1102 | ||
1103 | retval = usb_register(&sierra_driver); | |
1104 | if (retval) | |
1105 | goto failed_driver_register; | |
1106 | ||
c197a8db GKH |
1107 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
1108 | DRIVER_DESC "\n"); | |
964ee1de GKH |
1109 | |
1110 | return 0; | |
1111 | ||
1112 | failed_driver_register: | |
228426ed KL |
1113 | usb_serial_deregister(&sierra_device); |
1114 | failed_device_register: | |
964ee1de GKH |
1115 | return retval; |
1116 | } | |
1117 | ||
1118 | static void __exit sierra_exit(void) | |
1119 | { | |
9660ea36 | 1120 | usb_deregister(&sierra_driver); |
228426ed | 1121 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
1122 | } |
1123 | ||
1124 | module_init(sierra_init); | |
1125 | module_exit(sierra_exit); | |
1126 | ||
033a3fb9 KL |
1127 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1128 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1129 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1130 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1131 | |
4e0fee82 | 1132 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1133 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1134 | ||
033a3fb9 KL |
1135 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1136 | MODULE_PARM_DESC(debug, "Debug messages"); |