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> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
033a3fb9 | 30 | #include <linux/tty_flip.h> |
69de51fd KL |
31 | #include <linux/module.h> |
32 | #include <linux/usb.h> | |
a969888c | 33 | #include <linux/usb/serial.h> |
69de51fd | 34 | |
228426ed KL |
35 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
36 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 37 | |
3a2b808e EP |
38 | #define N_IN_URB_HM 8 |
39 | #define N_OUT_URB_HM 64 | |
40 | #define N_IN_URB 4 | |
41 | #define N_OUT_URB 4 | |
112225b1 KL |
42 | #define IN_BUFLEN 4096 |
43 | ||
40d2ff32 EP |
44 | #define MAX_TRANSFER (PAGE_SIZE - 512) |
45 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
46 | allocations > PAGE_SIZE and the number of packets in a page | |
47 | is an integer 512 is the largest possible packet on EHCI */ | |
48 | ||
90ab5ee9 RR |
49 | static bool debug; |
50 | static bool nmea; | |
112225b1 | 51 | |
4db2299d EP |
52 | /* Used in interface blacklisting */ |
53 | struct sierra_iface_info { | |
54 | const u32 infolen; /* number of interface numbers on blacklist */ | |
55 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
56 | }; | |
57 | ||
e6929a90 ON |
58 | struct sierra_intf_private { |
59 | spinlock_t susp_lock; | |
60 | unsigned int suspended:1; | |
61 | int in_flight; | |
62 | }; | |
63 | ||
82a24e68 | 64 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 | 65 | { |
64318a52 | 66 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 67 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 68 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
69 | swiState, /* __u16 value */ |
70 | 0, /* __u16 index */ | |
71 | NULL, /* void *data */ | |
72 | 0, /* __u16 size */ | |
73 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
74 | } |
75 | ||
228426ed | 76 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 | 77 | { |
64318a52 | 78 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 79 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ |
f3564de4 | 80 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
81 | enable, /* __u16 value */ |
82 | 0x0000, /* __u16 index */ | |
83 | NULL, /* void *data */ | |
84 | 0, /* __u16 size */ | |
85 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
228426ed KL |
86 | } |
87 | ||
88 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
89 | { | |
9636b683 EP |
90 | int num_ports = 0; |
91 | u8 ifnum, numendpoints; | |
228426ed | 92 | |
9636b683 EP |
93 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
94 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 95 | |
9636b683 EP |
96 | /* Dummy interface present on some SKUs should be ignored */ |
97 | if (ifnum == 0x99) | |
98 | num_ports = 0; | |
99 | else if (numendpoints <= 3) | |
100 | num_ports = 1; | |
101 | else | |
102 | num_ports = (numendpoints-1)/2; | |
103 | return num_ports; | |
228426ed KL |
104 | } |
105 | ||
4db2299d EP |
106 | static int is_blacklisted(const u8 ifnum, |
107 | const struct sierra_iface_info *blacklist) | |
108 | { | |
109 | const u8 *info; | |
110 | int i; | |
111 | ||
112 | if (blacklist) { | |
113 | info = blacklist->ifaceinfo; | |
114 | ||
115 | for (i = 0; i < blacklist->infolen; i++) { | |
116 | if (info[i] == ifnum) | |
117 | return 1; | |
118 | } | |
119 | } | |
120 | return 0; | |
121 | } | |
122 | ||
3a2b808e EP |
123 | static int is_himemory(const u8 ifnum, |
124 | const struct sierra_iface_info *himemorylist) | |
125 | { | |
126 | const u8 *info; | |
127 | int i; | |
128 | ||
129 | if (himemorylist) { | |
130 | info = himemorylist->ifaceinfo; | |
131 | ||
132 | for (i=0; i < himemorylist->infolen; i++) { | |
133 | if (info[i] == ifnum) | |
134 | return 1; | |
135 | } | |
136 | } | |
137 | return 0; | |
138 | } | |
139 | ||
7106967e KL |
140 | static int sierra_calc_interface(struct usb_serial *serial) |
141 | { | |
4e0fee82 KL |
142 | int interface; |
143 | struct usb_interface *p_interface; | |
144 | struct usb_host_interface *p_host_interface; | |
7106967e | 145 | |
4e0fee82 KL |
146 | /* Get the interface structure pointer from the serial struct */ |
147 | p_interface = serial->interface; | |
7106967e | 148 | |
4e0fee82 KL |
149 | /* Get a pointer to the host interface structure */ |
150 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 151 | |
4e0fee82 KL |
152 | /* read the interface descriptor for this active altsetting |
153 | * to find out the interface number we are on | |
154 | */ | |
155 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 156 | |
4e0fee82 | 157 | return interface; |
7106967e KL |
158 | } |
159 | ||
228426ed KL |
160 | static int sierra_probe(struct usb_serial *serial, |
161 | const struct usb_device_id *id) | |
162 | { | |
163 | int result = 0; | |
112225b1 | 164 | struct usb_device *udev; |
e6929a90 | 165 | struct sierra_intf_private *data; |
228426ed | 166 | u8 ifnum; |
112225b1 | 167 | |
228426ed | 168 | udev = serial->dev; |
e3173b22 | 169 | ifnum = sierra_calc_interface(serial); |
64318a52 | 170 | |
e3173b22 KL |
171 | /* |
172 | * If this interface supports more than 1 alternate | |
173 | * select the 2nd one | |
174 | */ | |
175 | if (serial->interface->num_altsetting == 2) { | |
176 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
177 | ifnum); | |
178 | /* We know the alternate setting is 1 for the MC8785 */ | |
179 | usb_set_interface(udev, ifnum, 1); | |
180 | } | |
7106967e | 181 | |
4db2299d EP |
182 | /* ifnum could have changed - by calling usb_set_interface */ |
183 | ifnum = sierra_calc_interface(serial); | |
184 | ||
185 | if (is_blacklisted(ifnum, | |
186 | (struct sierra_iface_info *)id->driver_info)) { | |
187 | dev_dbg(&serial->dev->dev, | |
188 | "Ignoring blacklisted interface #%d\n", ifnum); | |
189 | return -ENODEV; | |
190 | } | |
191 | ||
e6929a90 ON |
192 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
193 | if (!data) | |
194 | return -ENOMEM; | |
195 | spin_lock_init(&data->susp_lock); | |
196 | ||
228426ed | 197 | return result; |
112225b1 | 198 | } |
033a3fb9 | 199 | |
3a2b808e EP |
200 | /* interfaces with higher memory requirements */ |
201 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
202 | static const struct sierra_iface_info typeA_interface_list = { | |
203 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
204 | .ifaceinfo = hi_memory_typeA_ifaces, | |
205 | }; | |
206 | ||
207 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
208 | static const struct sierra_iface_info typeB_interface_list = { | |
209 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
210 | .ifaceinfo = hi_memory_typeB_ifaces, | |
211 | }; | |
212 | ||
213 | /* 'blacklist' of interfaces not served by this driver */ | |
749541d1 | 214 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; |
4db2299d EP |
215 | static const struct sierra_iface_info direct_ip_interface_blacklist = { |
216 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
217 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
218 | }; | |
219 | ||
7d40d7e8 | 220 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
221 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
222 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 223 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
224 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
225 | ||
e43062dd | 226 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 227 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 228 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 229 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 230 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
231 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
232 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
233 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 234 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 235 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 236 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 237 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
9d72c81d | 238 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ |
c5f3d87d | 239 | /* Sierra Wireless C597 */ |
4e0fee82 | 240 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 241 | /* Sierra Wireless T598 */ |
e3173b22 | 242 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
243 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
244 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
245 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
246 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 247 | |
69de51fd KL |
248 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
249 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
250 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
251 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
252 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
253 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 254 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 255 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 256 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 257 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 258 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 259 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 260 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
261 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
262 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
263 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
264 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
265 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
266 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 267 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 268 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
269 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
270 | { USB_DEVICE(0x1199, 0x683C) }, | |
271 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
272 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
273 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
274 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
275 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
276 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
277 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 278 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 279 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
280 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
281 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
282 | /* Sierra Wireless C885 */ | |
283 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 284 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 285 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 286 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 287 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 288 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 289 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 290 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
749541d1 BM |
291 | { USB_DEVICE(0x1199, 0x68A2), /* Sierra Wireless MC77xx in QMI mode */ |
292 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
293 | }, | |
4db2299d EP |
294 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
295 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
19a3dd15 TC |
296 | }, |
297 | /* AT&T Direct IP LTE modems */ | |
298 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
299 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 300 | }, |
e1dc5157 JT |
301 | { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */ |
302 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
303 | }, | |
1ebca9da | 304 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 305 | |
033a3fb9 KL |
306 | { } |
307 | }; | |
964ee1de | 308 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 309 | |
033a3fb9 | 310 | |
033a3fb9 | 311 | struct sierra_port_private { |
17c23274 GKH |
312 | spinlock_t lock; /* lock the structure */ |
313 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
314 | struct usb_anchor active; |
315 | struct usb_anchor delayed; | |
17c23274 | 316 | |
3a2b808e EP |
317 | int num_out_urbs; |
318 | int num_in_urbs; | |
4f4f9c53 | 319 | /* Input endpoints and buffers for this port */ |
3a2b808e | 320 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
321 | |
322 | /* Settings for the port */ | |
323 | int rts_state; /* Handshaking pins (outputs) */ | |
324 | int dtr_state; | |
325 | int cts_state; /* Handshaking pins (inputs) */ | |
326 | int dsr_state; | |
327 | int dcd_state; | |
328 | int ri_state; | |
e6929a90 | 329 | unsigned int opened:1; |
033a3fb9 KL |
330 | }; |
331 | ||
335f8514 | 332 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 333 | { |
964ee1de GKH |
334 | struct usb_serial *serial = port->serial; |
335 | struct sierra_port_private *portdata; | |
228426ed | 336 | __u16 interface = 0; |
335f8514 | 337 | int val = 0; |
3c77d513 EP |
338 | int do_send = 0; |
339 | int retval; | |
033a3fb9 | 340 | |
964ee1de | 341 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 342 | |
335f8514 AC |
343 | if (portdata->dtr_state) |
344 | val |= 0x01; | |
345 | if (portdata->rts_state) | |
346 | val |= 0x02; | |
347 | ||
348 | /* If composite device then properly report interface */ | |
00b040de | 349 | if (serial->num_ports == 1) { |
335f8514 | 350 | interface = sierra_calc_interface(serial); |
00b040de AC |
351 | /* Control message is sent only to interfaces with |
352 | * interrupt_in endpoints | |
353 | */ | |
354 | if (port->interrupt_in_urb) { | |
355 | /* send control message */ | |
3c77d513 | 356 | do_send = 1; |
00b040de AC |
357 | } |
358 | } | |
335f8514 AC |
359 | |
360 | /* Otherwise the need to do non-composite mapping */ | |
361 | else { | |
362 | if (port->bulk_out_endpointAddress == 2) | |
363 | interface = 0; | |
364 | else if (port->bulk_out_endpointAddress == 4) | |
365 | interface = 1; | |
366 | else if (port->bulk_out_endpointAddress == 5) | |
367 | interface = 2; | |
3c77d513 EP |
368 | |
369 | do_send = 1; | |
00b040de | 370 | } |
3c77d513 EP |
371 | if (!do_send) |
372 | return 0; | |
373 | ||
5b7c1178 ON |
374 | retval = usb_autopm_get_interface(serial->interface); |
375 | if (retval < 0) | |
376 | return retval; | |
377 | ||
3c77d513 EP |
378 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
379 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
380 | usb_autopm_put_interface(serial->interface); | |
381 | ||
382 | return retval; | |
69de51fd KL |
383 | } |
384 | ||
95da310e AC |
385 | static void sierra_set_termios(struct tty_struct *tty, |
386 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 387 | { |
95da310e | 388 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 389 | sierra_send_setup(port); |
033a3fb9 KL |
390 | } |
391 | ||
60b33c13 | 392 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 393 | { |
95da310e | 394 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
395 | unsigned int value; |
396 | struct sierra_port_private *portdata; | |
397 | ||
398 | portdata = usb_get_serial_port_data(port); | |
399 | ||
400 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
401 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
402 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
403 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
404 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
405 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
406 | ||
407 | return value; | |
408 | } | |
409 | ||
20b9d177 | 410 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
411 | unsigned int set, unsigned int clear) |
412 | { | |
95da310e | 413 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
414 | struct sierra_port_private *portdata; |
415 | ||
416 | portdata = usb_get_serial_port_data(port); | |
417 | ||
418 | if (set & TIOCM_RTS) | |
419 | portdata->rts_state = 1; | |
420 | if (set & TIOCM_DTR) | |
421 | portdata->dtr_state = 1; | |
422 | ||
423 | if (clear & TIOCM_RTS) | |
424 | portdata->rts_state = 0; | |
425 | if (clear & TIOCM_DTR) | |
426 | portdata->dtr_state = 0; | |
335f8514 | 427 | return sierra_send_setup(port); |
033a3fb9 KL |
428 | } |
429 | ||
b9a44bc1 EP |
430 | static void sierra_release_urb(struct urb *urb) |
431 | { | |
432 | struct usb_serial_port *port; | |
433 | if (urb) { | |
64318a52 | 434 | port = urb->context; |
b9a44bc1 EP |
435 | kfree(urb->transfer_buffer); |
436 | usb_free_urb(urb); | |
437 | } | |
438 | } | |
439 | ||
17c23274 GKH |
440 | static void sierra_outdat_callback(struct urb *urb) |
441 | { | |
442 | struct usb_serial_port *port = urb->context; | |
443 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 444 | struct sierra_intf_private *intfdata; |
17c23274 | 445 | int status = urb->status; |
17c23274 | 446 | |
e6929a90 | 447 | intfdata = port->serial->private; |
17c23274 GKH |
448 | |
449 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
450 | kfree(urb->transfer_buffer); | |
e6929a90 | 451 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 452 | if (status) |
7384a922 | 453 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 454 | "received: %d\n", __func__, status); |
17c23274 | 455 | |
e6929a90 | 456 | spin_lock(&portdata->lock); |
17c23274 | 457 | --portdata->outstanding_urbs; |
e6929a90 ON |
458 | spin_unlock(&portdata->lock); |
459 | spin_lock(&intfdata->susp_lock); | |
460 | --intfdata->in_flight; | |
461 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
462 | |
463 | usb_serial_port_softint(port); | |
464 | } | |
465 | ||
033a3fb9 | 466 | /* Write */ |
95da310e AC |
467 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
468 | const unsigned char *buf, int count) | |
033a3fb9 | 469 | { |
a45a1e07 | 470 | struct sierra_port_private *portdata; |
e6929a90 | 471 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
472 | struct usb_serial *serial = port->serial; |
473 | unsigned long flags; | |
474 | unsigned char *buffer; | |
475 | struct urb *urb; | |
40d2ff32 EP |
476 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
477 | int retval = 0; | |
478 | ||
479 | /* verify that we actually have some data to write */ | |
480 | if (count == 0) | |
481 | return 0; | |
033a3fb9 KL |
482 | |
483 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 484 | intfdata = serial->private; |
033a3fb9 | 485 | |
0b10395a | 486 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 487 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
488 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
489 | portdata->outstanding_urbs); | |
3a2b808e | 490 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 491 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 492 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
493 | return 0; |
494 | } | |
495 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
496 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
497 | portdata->outstanding_urbs); | |
17c23274 GKH |
498 | spin_unlock_irqrestore(&portdata->lock, flags); |
499 | ||
e6929a90 ON |
500 | retval = usb_autopm_get_interface_async(serial->interface); |
501 | if (retval < 0) { | |
502 | spin_lock_irqsave(&portdata->lock, flags); | |
503 | portdata->outstanding_urbs--; | |
504 | spin_unlock_irqrestore(&portdata->lock, flags); | |
505 | goto error_simple; | |
506 | } | |
507 | ||
40d2ff32 | 508 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
509 | if (!buffer) { |
510 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 511 | retval = -ENOMEM; |
17c23274 GKH |
512 | goto error_no_buffer; |
513 | } | |
033a3fb9 | 514 | |
17c23274 GKH |
515 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
516 | if (!urb) { | |
517 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 518 | retval = -ENOMEM; |
17c23274 GKH |
519 | goto error_no_urb; |
520 | } | |
033a3fb9 | 521 | |
40d2ff32 | 522 | memcpy(buffer, buf, writesize); |
033a3fb9 | 523 | |
40d2ff32 | 524 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
525 | |
526 | usb_fill_bulk_urb(urb, serial->dev, | |
527 | usb_sndbulkpipe(serial->dev, | |
528 | port->bulk_out_endpointAddress), | |
40d2ff32 | 529 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 530 | |
238ebd13 EP |
531 | /* Handle the need to send a zero length packet */ |
532 | urb->transfer_flags |= URB_ZERO_PACKET; | |
533 | ||
e6929a90 ON |
534 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
535 | ||
536 | if (intfdata->suspended) { | |
537 | usb_anchor_urb(urb, &portdata->delayed); | |
538 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
539 | goto skip_power; | |
540 | } else { | |
541 | usb_anchor_urb(urb, &portdata->active); | |
542 | } | |
17c23274 | 543 | /* send it down the pipe */ |
40d2ff32 EP |
544 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
545 | if (retval) { | |
e6929a90 ON |
546 | usb_unanchor_urb(urb); |
547 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 548 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 549 | "with status = %d\n", __func__, retval); |
17c23274 | 550 | goto error; |
e6929a90 ON |
551 | } else { |
552 | intfdata->in_flight++; | |
553 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
554 | } |
555 | ||
e6929a90 | 556 | skip_power: |
17c23274 GKH |
557 | /* we are done with this urb, so let the host driver |
558 | * really free it when it is finished with it */ | |
559 | usb_free_urb(urb); | |
560 | ||
40d2ff32 | 561 | return writesize; |
17c23274 GKH |
562 | error: |
563 | usb_free_urb(urb); | |
564 | error_no_urb: | |
565 | kfree(buffer); | |
566 | error_no_buffer: | |
567 | spin_lock_irqsave(&portdata->lock, flags); | |
568 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
569 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
570 | portdata->outstanding_urbs); | |
17c23274 | 571 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
572 | usb_autopm_put_interface_async(serial->interface); |
573 | error_simple: | |
40d2ff32 | 574 | return retval; |
033a3fb9 KL |
575 | } |
576 | ||
577 | static void sierra_indat_callback(struct urb *urb) | |
578 | { | |
579 | int err; | |
580 | int endpoint; | |
581 | struct usb_serial_port *port; | |
582 | struct tty_struct *tty; | |
583 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 584 | int status = urb->status; |
033a3fb9 | 585 | |
033a3fb9 | 586 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
587 | port = urb->context; |
588 | ||
17dd2215 | 589 | if (status) { |
7384a922 | 590 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 591 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 592 | } else { |
033a3fb9 | 593 | if (urb->actual_length) { |
d95186d1 | 594 | tty = tty_port_tty_get(&port->port); |
b87c6e86 | 595 | if (tty) { |
b87c6e86 EP |
596 | tty_insert_flip_string(tty, data, |
597 | urb->actual_length); | |
598 | tty_flip_buffer_push(tty); | |
599 | ||
600 | tty_kref_put(tty); | |
601 | usb_serial_debug_data(debug, &port->dev, | |
602 | __func__, urb->actual_length, data); | |
603 | } | |
b0cda8c5 | 604 | } else { |
7384a922 | 605 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 606 | " received\n", __func__); |
033a3fb9 KL |
607 | } |
608 | } | |
b0cda8c5 EP |
609 | |
610 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 611 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 612 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 613 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 614 | if (err && err != -EPERM) |
b0cda8c5 EP |
615 | dev_err(&port->dev, "resubmit read urb failed." |
616 | "(%d)\n", err); | |
617 | } | |
033a3fb9 KL |
618 | } |
619 | ||
033a3fb9 KL |
620 | static void sierra_instat_callback(struct urb *urb) |
621 | { | |
622 | int err; | |
17dd2215 | 623 | int status = urb->status; |
cdc97792 | 624 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
625 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
626 | struct usb_serial *serial = port->serial; | |
627 | ||
5d44b361 | 628 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 629 | urb, port, portdata); |
033a3fb9 | 630 | |
17dd2215 | 631 | if (status == 0) { |
033a3fb9 KL |
632 | struct usb_ctrlrequest *req_pkt = |
633 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
634 | ||
635 | if (!req_pkt) { | |
7384a922 KL |
636 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
637 | __func__); | |
033a3fb9 KL |
638 | return; |
639 | } | |
640 | if ((req_pkt->bRequestType == 0xA1) && | |
641 | (req_pkt->bRequest == 0x20)) { | |
642 | int old_dcd_state; | |
643 | unsigned char signals = *((unsigned char *) | |
644 | urb->transfer_buffer + | |
645 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 646 | struct tty_struct *tty; |
033a3fb9 | 647 | |
5d44b361 | 648 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 649 | signals); |
033a3fb9 KL |
650 | |
651 | old_dcd_state = portdata->dcd_state; | |
652 | portdata->cts_state = 1; | |
653 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
654 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
655 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
656 | ||
4a90f09b AC |
657 | tty = tty_port_tty_get(&port->port); |
658 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 659 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
660 | tty_hangup(tty); |
661 | tty_kref_put(tty); | |
033a3fb9 | 662 | } else { |
5d44b361 | 663 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
664 | __func__, req_pkt->bRequestType, |
665 | req_pkt->bRequest); | |
033a3fb9 KL |
666 | } |
667 | } else | |
5d44b361 | 668 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
669 | |
670 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 671 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 672 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 673 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 674 | if (err && err != -EPERM) |
c76a23da EP |
675 | dev_err(&port->dev, "%s: resubmit intr urb " |
676 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
677 | } |
678 | } | |
679 | ||
95da310e | 680 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 681 | { |
95da310e | 682 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
683 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
684 | unsigned long flags; | |
033a3fb9 | 685 | |
17c23274 GKH |
686 | /* try to give a good number back based on if we have any free urbs at |
687 | * this point in time */ | |
688 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 689 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 690 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 691 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 692 | return 0; |
033a3fb9 | 693 | } |
17c23274 | 694 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 695 | |
17c23274 | 696 | return 2048; |
033a3fb9 KL |
697 | } |
698 | ||
b9a44bc1 | 699 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 700 | { |
9e85c5f6 | 701 | int i; |
b9a44bc1 | 702 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 703 | |
3a2b808e | 704 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 705 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 706 | |
b9a44bc1 EP |
707 | usb_kill_urb(port->interrupt_in_urb); |
708 | } | |
033a3fb9 | 709 | |
b9a44bc1 EP |
710 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
711 | { | |
712 | int ok_cnt; | |
713 | int err = -EINVAL; | |
714 | int i; | |
715 | struct urb *urb; | |
716 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 717 | |
b9a44bc1 | 718 | ok_cnt = 0; |
3a2b808e | 719 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 720 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 721 | if (!urb) |
033a3fb9 | 722 | continue; |
b9a44bc1 EP |
723 | err = usb_submit_urb(urb, mem_flags); |
724 | if (err) { | |
725 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
726 | __func__, err); | |
727 | } else { | |
728 | ok_cnt++; | |
033a3fb9 | 729 | } |
b9a44bc1 | 730 | } |
033a3fb9 | 731 | |
b9a44bc1 EP |
732 | if (ok_cnt && port->interrupt_in_urb) { |
733 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
734 | if (err) { | |
735 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
736 | __func__, err); | |
033a3fb9 KL |
737 | } |
738 | } | |
739 | ||
b9a44bc1 EP |
740 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
741 | return 0; | |
742 | else | |
743 | return err; | |
744 | } | |
745 | ||
746 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
747 | int dir, void *ctx, int len, | |
748 | gfp_t mem_flags, | |
749 | usb_complete_t callback) | |
750 | { | |
751 | struct urb *urb; | |
752 | u8 *buf; | |
753 | ||
754 | if (endpoint == -1) | |
755 | return NULL; | |
033a3fb9 | 756 | |
b9a44bc1 EP |
757 | urb = usb_alloc_urb(0, mem_flags); |
758 | if (urb == NULL) { | |
759 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
760 | __func__, endpoint); | |
761 | return NULL; | |
9e85c5f6 | 762 | } |
b9a44bc1 EP |
763 | |
764 | buf = kmalloc(len, mem_flags); | |
765 | if (buf) { | |
766 | /* Fill URB using supplied data */ | |
767 | usb_fill_bulk_urb(urb, serial->dev, | |
768 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
769 | buf, len, callback, ctx); | |
770 | ||
771 | /* debug */ | |
772 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
773 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
774 | } else { | |
775 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
776 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
777 | ||
778 | sierra_release_urb(urb); | |
779 | urb = NULL; | |
780 | } | |
781 | ||
782 | return urb; | |
033a3fb9 KL |
783 | } |
784 | ||
b9a44bc1 | 785 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 786 | { |
b9a44bc1 | 787 | int i; |
033a3fb9 KL |
788 | struct usb_serial *serial = port->serial; |
789 | struct sierra_port_private *portdata; | |
e6929a90 ON |
790 | struct sierra_intf_private *intfdata = port->serial->private; |
791 | ||
033a3fb9 | 792 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
793 | |
794 | portdata->rts_state = 0; | |
795 | portdata->dtr_state = 0; | |
033a3fb9 KL |
796 | |
797 | if (serial->dev) { | |
e33fe4d8 | 798 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
799 | if (!serial->disconnected) { |
800 | serial->interface->needs_remote_wakeup = 0; | |
5b7c1178 ON |
801 | /* odd error handling due to pm counters */ |
802 | if (!usb_autopm_get_interface(serial->interface)) | |
803 | sierra_send_setup(port); | |
804 | else | |
805 | usb_autopm_get_interface_no_resume(serial->interface); | |
806 | ||
b64dc0a5 | 807 | } |
e33fe4d8 | 808 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
809 | spin_lock_irq(&intfdata->susp_lock); |
810 | portdata->opened = 0; | |
811 | spin_unlock_irq(&intfdata->susp_lock); | |
812 | ||
b9a44bc1 EP |
813 | |
814 | /* Stop reading urbs */ | |
815 | sierra_stop_rx_urbs(port); | |
816 | /* .. and release them */ | |
3a2b808e | 817 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
818 | sierra_release_urb(portdata->in_urbs[i]); |
819 | portdata->in_urbs[i] = NULL; | |
820 | } | |
335f8514 AC |
821 | } |
822 | } | |
823 | ||
a509a7e4 | 824 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 825 | { |
b9a44bc1 EP |
826 | struct sierra_port_private *portdata; |
827 | struct usb_serial *serial = port->serial; | |
e6929a90 | 828 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 829 | int i; |
b9a44bc1 EP |
830 | int err; |
831 | int endpoint; | |
832 | struct urb *urb; | |
833 | ||
834 | portdata = usb_get_serial_port_data(port); | |
835 | ||
b9a44bc1 EP |
836 | /* Set some sane defaults */ |
837 | portdata->rts_state = 1; | |
838 | portdata->dtr_state = 1; | |
839 | ||
840 | ||
841 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 842 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
843 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
844 | IN_BUFLEN, GFP_KERNEL, | |
845 | sierra_indat_callback); | |
846 | portdata->in_urbs[i] = urb; | |
847 | } | |
848 | /* clear halt condition */ | |
849 | usb_clear_halt(serial->dev, | |
850 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
851 | ||
852 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
853 | if (err) { | |
854 | /* get rid of everything as in close */ | |
855 | sierra_close(port); | |
b64dc0a5 | 856 | /* restore balance for autopm */ |
5b7c1178 ON |
857 | if (!serial->disconnected) |
858 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
859 | return err; |
860 | } | |
861 | sierra_send_setup(port); | |
862 | ||
e6929a90 ON |
863 | serial->interface->needs_remote_wakeup = 1; |
864 | spin_lock_irq(&intfdata->susp_lock); | |
865 | portdata->opened = 1; | |
866 | spin_unlock_irq(&intfdata->susp_lock); | |
867 | usb_autopm_put_interface(serial->interface); | |
868 | ||
b9a44bc1 EP |
869 | return 0; |
870 | } | |
871 | ||
872 | ||
873 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
874 | { | |
335f8514 AC |
875 | struct usb_serial *serial = port->serial; |
876 | struct sierra_port_private *portdata; | |
033a3fb9 | 877 | |
335f8514 | 878 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
879 | portdata->rts_state = on; |
880 | portdata->dtr_state = on; | |
335f8514 AC |
881 | |
882 | if (serial->dev) { | |
b9a44bc1 EP |
883 | mutex_lock(&serial->disc_mutex); |
884 | if (!serial->disconnected) | |
885 | sierra_send_setup(port); | |
886 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 887 | } |
033a3fb9 KL |
888 | } |
889 | ||
033a3fb9 KL |
890 | static int sierra_startup(struct usb_serial *serial) |
891 | { | |
033a3fb9 KL |
892 | struct usb_serial_port *port; |
893 | struct sierra_port_private *portdata; | |
3a2b808e | 894 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 895 | int i; |
3a2b808e | 896 | u8 ifnum; |
033a3fb9 | 897 | |
228426ed | 898 | /* Set Device mode to D0 */ |
112225b1 KL |
899 | sierra_set_power_state(serial->dev, 0x0000); |
900 | ||
228426ed KL |
901 | /* Check NMEA and set */ |
902 | if (nmea) | |
903 | sierra_vsc_set_nmea(serial->dev, 1); | |
904 | ||
033a3fb9 KL |
905 | /* Now setup per port private data */ |
906 | for (i = 0; i < serial->num_ports; i++) { | |
907 | port = serial->port[i]; | |
908 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
909 | if (!portdata) { | |
7384a922 | 910 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 911 | "sierra_port_private (%d) failed!\n", |
7384a922 | 912 | __func__, i); |
17c23274 | 913 | return -ENOMEM; |
033a3fb9 | 914 | } |
17c23274 | 915 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
916 | init_usb_anchor(&portdata->active); |
917 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
918 | ifnum = i; |
919 | /* Assume low memory requirements */ | |
920 | portdata->num_out_urbs = N_OUT_URB; | |
921 | portdata->num_in_urbs = N_IN_URB; | |
922 | ||
923 | /* Determine actual memory requirements */ | |
924 | if (serial->num_ports == 1) { | |
925 | /* Get interface number for composite device */ | |
926 | ifnum = sierra_calc_interface(serial); | |
927 | himemoryp = | |
928 | (struct sierra_iface_info *)&typeB_interface_list; | |
929 | if (is_himemory(ifnum, himemoryp)) { | |
930 | portdata->num_out_urbs = N_OUT_URB_HM; | |
931 | portdata->num_in_urbs = N_IN_URB_HM; | |
932 | } | |
933 | } | |
934 | else { | |
935 | himemoryp = | |
936 | (struct sierra_iface_info *)&typeA_interface_list; | |
937 | if (is_himemory(i, himemoryp)) { | |
938 | portdata->num_out_urbs = N_OUT_URB_HM; | |
939 | portdata->num_in_urbs = N_IN_URB_HM; | |
940 | } | |
941 | } | |
942 | dev_dbg(&serial->dev->dev, | |
943 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
944 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 945 | /* Set the port private data pointer */ |
033a3fb9 | 946 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
947 | } |
948 | ||
17c23274 | 949 | return 0; |
033a3fb9 KL |
950 | } |
951 | ||
7bae0a07 | 952 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 953 | { |
b9a44bc1 | 954 | int i; |
033a3fb9 KL |
955 | struct usb_serial_port *port; |
956 | struct sierra_port_private *portdata; | |
957 | ||
033a3fb9 KL |
958 | for (i = 0; i < serial->num_ports; ++i) { |
959 | port = serial->port[i]; | |
f094e4f3 GKH |
960 | if (!port) |
961 | continue; | |
033a3fb9 | 962 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
963 | if (!portdata) |
964 | continue; | |
9e85c5f6 | 965 | kfree(portdata); |
033a3fb9 KL |
966 | } |
967 | } | |
968 | ||
cd604513 | 969 | #ifdef CONFIG_PM |
e6929a90 ON |
970 | static void stop_read_write_urbs(struct usb_serial *serial) |
971 | { | |
b64dc0a5 | 972 | int i; |
e6929a90 ON |
973 | struct usb_serial_port *port; |
974 | struct sierra_port_private *portdata; | |
975 | ||
976 | /* Stop reading/writing urbs */ | |
977 | for (i = 0; i < serial->num_ports; ++i) { | |
978 | port = serial->port[i]; | |
979 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 980 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
981 | usb_kill_anchored_urbs(&portdata->active); |
982 | } | |
983 | } | |
984 | ||
985 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
986 | { | |
987 | struct sierra_intf_private *intfdata; | |
988 | int b; | |
989 | ||
5b1b0b81 | 990 | if (PMSG_IS_AUTO(message)) { |
e6929a90 ON |
991 | intfdata = serial->private; |
992 | spin_lock_irq(&intfdata->susp_lock); | |
993 | b = intfdata->in_flight; | |
994 | ||
995 | if (b) { | |
996 | spin_unlock_irq(&intfdata->susp_lock); | |
997 | return -EBUSY; | |
998 | } else { | |
999 | intfdata->suspended = 1; | |
1000 | spin_unlock_irq(&intfdata->susp_lock); | |
1001 | } | |
1002 | } | |
1003 | stop_read_write_urbs(serial); | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static int sierra_resume(struct usb_serial *serial) | |
1009 | { | |
1010 | struct usb_serial_port *port; | |
1011 | struct sierra_intf_private *intfdata = serial->private; | |
1012 | struct sierra_port_private *portdata; | |
1013 | struct urb *urb; | |
1014 | int ec = 0; | |
1015 | int i, err; | |
1016 | ||
1017 | spin_lock_irq(&intfdata->susp_lock); | |
1018 | for (i = 0; i < serial->num_ports; i++) { | |
1019 | port = serial->port[i]; | |
1020 | portdata = usb_get_serial_port_data(port); | |
1021 | ||
1022 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1023 | usb_anchor_urb(urb, &portdata->active); | |
1024 | intfdata->in_flight++; | |
1025 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1026 | if (err < 0) { | |
1027 | intfdata->in_flight--; | |
1028 | usb_unanchor_urb(urb); | |
1029 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (portdata->opened) { | |
1035 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1036 | if (err) | |
1037 | ec++; | |
1038 | } | |
1039 | } | |
1040 | intfdata->suspended = 0; | |
1041 | spin_unlock_irq(&intfdata->susp_lock); | |
1042 | ||
1043 | return ec ? -EIO : 0; | |
1044 | } | |
7650cd96 | 1045 | |
cd604513 AM |
1046 | #else |
1047 | #define sierra_suspend NULL | |
1048 | #define sierra_resume NULL | |
1049 | #endif | |
e6929a90 | 1050 | |
228426ed | 1051 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1052 | .driver = { |
1053 | .owner = THIS_MODULE, | |
4e0fee82 | 1054 | .name = "sierra", |
964ee1de | 1055 | }, |
228426ed KL |
1056 | .description = "Sierra USB modem", |
1057 | .id_table = id_table, | |
228426ed KL |
1058 | .calc_num_ports = sierra_calc_num_ports, |
1059 | .probe = sierra_probe, | |
964ee1de GKH |
1060 | .open = sierra_open, |
1061 | .close = sierra_close, | |
335f8514 | 1062 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1063 | .write = sierra_write, |
1064 | .write_room = sierra_write_room, | |
964ee1de | 1065 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1066 | .tiocmget = sierra_tiocmget, |
1067 | .tiocmset = sierra_tiocmset, | |
1068 | .attach = sierra_startup, | |
7bae0a07 | 1069 | .release = sierra_release, |
e6929a90 ON |
1070 | .suspend = sierra_suspend, |
1071 | .resume = sierra_resume, | |
964ee1de GKH |
1072 | .read_int_callback = sierra_instat_callback, |
1073 | }; | |
1074 | ||
d860322f AS |
1075 | static struct usb_serial_driver * const serial_drivers[] = { |
1076 | &sierra_device, NULL | |
1077 | }; | |
1078 | ||
68e24113 | 1079 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1080 | |
033a3fb9 KL |
1081 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1082 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1083 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1084 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1085 | |
4e0fee82 | 1086 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1087 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1088 | ||
033a3fb9 KL |
1089 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1090 | MODULE_PARM_DESC(debug, "Debug messages"); |