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 | ||
112225b1 | 49 | static int debug; |
228426ed | 50 | static int 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 KL |
65 | { |
66 | int result; | |
5d44b361 | 67 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 68 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 69 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 70 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
71 | swiState, /* __u16 value */ |
72 | 0, /* __u16 index */ | |
73 | NULL, /* void *data */ | |
74 | 0, /* __u16 size */ | |
75 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
76 | return result; |
77 | } | |
78 | ||
228426ed | 79 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
80 | { |
81 | int result; | |
5d44b361 | 82 | dev_dbg(&udev->dev, "%s\n", __func__); |
228426ed KL |
83 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
84 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 85 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
86 | enable, /* __u16 value */ |
87 | 0x0000, /* __u16 index */ | |
88 | NULL, /* void *data */ | |
89 | 0, /* __u16 size */ | |
90 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
91 | return result; | |
92 | } | |
93 | ||
94 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
95 | { | |
9636b683 EP |
96 | int num_ports = 0; |
97 | u8 ifnum, numendpoints; | |
228426ed | 98 | |
9636b683 | 99 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
228426ed | 100 | |
9636b683 EP |
101 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
102 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 103 | |
9636b683 EP |
104 | /* Dummy interface present on some SKUs should be ignored */ |
105 | if (ifnum == 0x99) | |
106 | num_ports = 0; | |
107 | else if (numendpoints <= 3) | |
108 | num_ports = 1; | |
109 | else | |
110 | num_ports = (numendpoints-1)/2; | |
111 | return num_ports; | |
228426ed KL |
112 | } |
113 | ||
4db2299d EP |
114 | static int is_blacklisted(const u8 ifnum, |
115 | const struct sierra_iface_info *blacklist) | |
116 | { | |
117 | const u8 *info; | |
118 | int i; | |
119 | ||
120 | if (blacklist) { | |
121 | info = blacklist->ifaceinfo; | |
122 | ||
123 | for (i = 0; i < blacklist->infolen; i++) { | |
124 | if (info[i] == ifnum) | |
125 | return 1; | |
126 | } | |
127 | } | |
128 | return 0; | |
129 | } | |
130 | ||
3a2b808e EP |
131 | static int is_himemory(const u8 ifnum, |
132 | const struct sierra_iface_info *himemorylist) | |
133 | { | |
134 | const u8 *info; | |
135 | int i; | |
136 | ||
137 | if (himemorylist) { | |
138 | info = himemorylist->ifaceinfo; | |
139 | ||
140 | for (i=0; i < himemorylist->infolen; i++) { | |
141 | if (info[i] == ifnum) | |
142 | return 1; | |
143 | } | |
144 | } | |
145 | return 0; | |
146 | } | |
147 | ||
7106967e KL |
148 | static int sierra_calc_interface(struct usb_serial *serial) |
149 | { | |
4e0fee82 KL |
150 | int interface; |
151 | struct usb_interface *p_interface; | |
152 | struct usb_host_interface *p_host_interface; | |
5d44b361 | 153 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
7106967e | 154 | |
4e0fee82 KL |
155 | /* Get the interface structure pointer from the serial struct */ |
156 | p_interface = serial->interface; | |
7106967e | 157 | |
4e0fee82 KL |
158 | /* Get a pointer to the host interface structure */ |
159 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 160 | |
4e0fee82 KL |
161 | /* read the interface descriptor for this active altsetting |
162 | * to find out the interface number we are on | |
163 | */ | |
164 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 165 | |
4e0fee82 | 166 | return interface; |
7106967e KL |
167 | } |
168 | ||
228426ed KL |
169 | static int sierra_probe(struct usb_serial *serial, |
170 | const struct usb_device_id *id) | |
171 | { | |
172 | int result = 0; | |
112225b1 | 173 | struct usb_device *udev; |
e6929a90 | 174 | struct sierra_intf_private *data; |
228426ed | 175 | u8 ifnum; |
112225b1 | 176 | |
228426ed | 177 | udev = serial->dev; |
9636b683 | 178 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 179 | |
e3173b22 | 180 | ifnum = sierra_calc_interface(serial); |
e3173b22 KL |
181 | /* |
182 | * If this interface supports more than 1 alternate | |
183 | * select the 2nd one | |
184 | */ | |
185 | if (serial->interface->num_altsetting == 2) { | |
186 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
187 | ifnum); | |
188 | /* We know the alternate setting is 1 for the MC8785 */ | |
189 | usb_set_interface(udev, ifnum, 1); | |
190 | } | |
7106967e | 191 | |
4db2299d EP |
192 | /* ifnum could have changed - by calling usb_set_interface */ |
193 | ifnum = sierra_calc_interface(serial); | |
194 | ||
195 | if (is_blacklisted(ifnum, | |
196 | (struct sierra_iface_info *)id->driver_info)) { | |
197 | dev_dbg(&serial->dev->dev, | |
198 | "Ignoring blacklisted interface #%d\n", ifnum); | |
199 | return -ENODEV; | |
200 | } | |
201 | ||
e6929a90 ON |
202 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
203 | if (!data) | |
204 | return -ENOMEM; | |
205 | spin_lock_init(&data->susp_lock); | |
206 | ||
228426ed | 207 | return result; |
112225b1 | 208 | } |
033a3fb9 | 209 | |
3a2b808e EP |
210 | /* interfaces with higher memory requirements */ |
211 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
212 | static const struct sierra_iface_info typeA_interface_list = { | |
213 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
214 | .ifaceinfo = hi_memory_typeA_ifaces, | |
215 | }; | |
216 | ||
217 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
218 | static const struct sierra_iface_info typeB_interface_list = { | |
219 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
220 | .ifaceinfo = hi_memory_typeB_ifaces, | |
221 | }; | |
222 | ||
223 | /* 'blacklist' of interfaces not served by this driver */ | |
4db2299d EP |
224 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; |
225 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
226 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
227 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
228 | }; | |
229 | ||
7d40d7e8 | 230 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
231 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
232 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 233 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
234 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
235 | ||
e43062dd | 236 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 237 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 238 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 239 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 240 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
241 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
242 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
243 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 244 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 245 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 246 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 247 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
c5f3d87d | 248 | /* Sierra Wireless C597 */ |
4e0fee82 | 249 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 250 | /* Sierra Wireless T598 */ |
e3173b22 | 251 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
252 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
253 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
254 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
255 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 256 | |
69de51fd KL |
257 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
258 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
259 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
260 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
261 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
262 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 263 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 264 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 265 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 266 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 267 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 268 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 269 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
270 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
271 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
272 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
273 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
274 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
275 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 276 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 277 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
278 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
279 | { USB_DEVICE(0x1199, 0x683C) }, | |
280 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
281 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
282 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
283 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
284 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
285 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
286 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 287 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 288 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
289 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
290 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
291 | /* Sierra Wireless C885 */ | |
292 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 293 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 294 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 295 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 296 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 297 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 298 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 299 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
300 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
301 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
302 | }, | |
1ebca9da | 303 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 304 | |
033a3fb9 KL |
305 | { } |
306 | }; | |
964ee1de | 307 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 308 | |
033a3fb9 | 309 | |
033a3fb9 | 310 | struct sierra_port_private { |
17c23274 GKH |
311 | spinlock_t lock; /* lock the structure */ |
312 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
313 | struct usb_anchor active; |
314 | struct usb_anchor delayed; | |
17c23274 | 315 | |
3a2b808e EP |
316 | int num_out_urbs; |
317 | int num_in_urbs; | |
4f4f9c53 | 318 | /* Input endpoints and buffers for this port */ |
3a2b808e | 319 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
320 | |
321 | /* Settings for the port */ | |
322 | int rts_state; /* Handshaking pins (outputs) */ | |
323 | int dtr_state; | |
324 | int cts_state; /* Handshaking pins (inputs) */ | |
325 | int dsr_state; | |
326 | int dcd_state; | |
327 | int ri_state; | |
e6929a90 | 328 | unsigned int opened:1; |
033a3fb9 KL |
329 | }; |
330 | ||
335f8514 | 331 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 332 | { |
964ee1de GKH |
333 | struct usb_serial *serial = port->serial; |
334 | struct sierra_port_private *portdata; | |
228426ed | 335 | __u16 interface = 0; |
335f8514 | 336 | int val = 0; |
3c77d513 EP |
337 | int do_send = 0; |
338 | int retval; | |
033a3fb9 | 339 | |
5d44b361 | 340 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 341 | |
964ee1de | 342 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 343 | |
335f8514 AC |
344 | if (portdata->dtr_state) |
345 | val |= 0x01; | |
346 | if (portdata->rts_state) | |
347 | val |= 0x02; | |
348 | ||
349 | /* If composite device then properly report interface */ | |
00b040de | 350 | if (serial->num_ports == 1) { |
335f8514 | 351 | interface = sierra_calc_interface(serial); |
00b040de AC |
352 | /* Control message is sent only to interfaces with |
353 | * interrupt_in endpoints | |
354 | */ | |
355 | if (port->interrupt_in_urb) { | |
356 | /* send control message */ | |
3c77d513 | 357 | do_send = 1; |
00b040de AC |
358 | } |
359 | } | |
335f8514 AC |
360 | |
361 | /* Otherwise the need to do non-composite mapping */ | |
362 | else { | |
363 | if (port->bulk_out_endpointAddress == 2) | |
364 | interface = 0; | |
365 | else if (port->bulk_out_endpointAddress == 4) | |
366 | interface = 1; | |
367 | else if (port->bulk_out_endpointAddress == 5) | |
368 | interface = 2; | |
3c77d513 EP |
369 | |
370 | do_send = 1; | |
00b040de | 371 | } |
3c77d513 EP |
372 | if (!do_send) |
373 | return 0; | |
374 | ||
375 | usb_autopm_get_interface(serial->interface); | |
376 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
377 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
378 | usb_autopm_put_interface(serial->interface); | |
379 | ||
380 | return retval; | |
69de51fd KL |
381 | } |
382 | ||
95da310e AC |
383 | static void sierra_set_termios(struct tty_struct *tty, |
384 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 385 | { |
5d44b361 | 386 | dev_dbg(&port->dev, "%s\n", __func__); |
95da310e | 387 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 388 | sierra_send_setup(port); |
033a3fb9 KL |
389 | } |
390 | ||
95da310e | 391 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 392 | { |
95da310e | 393 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
394 | unsigned int value; |
395 | struct sierra_port_private *portdata; | |
396 | ||
5d44b361 | 397 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 KL |
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 | ||
95da310e | 410 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
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) { | |
434 | port = urb->context; | |
435 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
436 | kfree(urb->transfer_buffer); | |
437 | usb_free_urb(urb); | |
438 | } | |
439 | } | |
440 | ||
17c23274 GKH |
441 | static void sierra_outdat_callback(struct urb *urb) |
442 | { | |
443 | struct usb_serial_port *port = urb->context; | |
444 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 445 | struct sierra_intf_private *intfdata; |
17c23274 | 446 | int status = urb->status; |
17c23274 | 447 | |
5d44b361 | 448 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
e6929a90 | 449 | intfdata = port->serial->private; |
17c23274 GKH |
450 | |
451 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
452 | kfree(urb->transfer_buffer); | |
e6929a90 | 453 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 454 | if (status) |
7384a922 | 455 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 456 | "received: %d\n", __func__, status); |
17c23274 | 457 | |
e6929a90 | 458 | spin_lock(&portdata->lock); |
17c23274 | 459 | --portdata->outstanding_urbs; |
e6929a90 ON |
460 | spin_unlock(&portdata->lock); |
461 | spin_lock(&intfdata->susp_lock); | |
462 | --intfdata->in_flight; | |
463 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
464 | |
465 | usb_serial_port_softint(port); | |
466 | } | |
467 | ||
033a3fb9 | 468 | /* Write */ |
95da310e AC |
469 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
470 | const unsigned char *buf, int count) | |
033a3fb9 | 471 | { |
a45a1e07 | 472 | struct sierra_port_private *portdata; |
e6929a90 | 473 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
474 | struct usb_serial *serial = port->serial; |
475 | unsigned long flags; | |
476 | unsigned char *buffer; | |
477 | struct urb *urb; | |
40d2ff32 EP |
478 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
479 | int retval = 0; | |
480 | ||
481 | /* verify that we actually have some data to write */ | |
482 | if (count == 0) | |
483 | return 0; | |
033a3fb9 KL |
484 | |
485 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 486 | intfdata = serial->private; |
033a3fb9 | 487 | |
0b10395a | 488 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 489 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
490 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
491 | portdata->outstanding_urbs); | |
3a2b808e | 492 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 493 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 494 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
495 | return 0; |
496 | } | |
497 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
498 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
499 | portdata->outstanding_urbs); | |
17c23274 GKH |
500 | spin_unlock_irqrestore(&portdata->lock, flags); |
501 | ||
e6929a90 ON |
502 | retval = usb_autopm_get_interface_async(serial->interface); |
503 | if (retval < 0) { | |
504 | spin_lock_irqsave(&portdata->lock, flags); | |
505 | portdata->outstanding_urbs--; | |
506 | spin_unlock_irqrestore(&portdata->lock, flags); | |
507 | goto error_simple; | |
508 | } | |
509 | ||
40d2ff32 | 510 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
511 | if (!buffer) { |
512 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 513 | retval = -ENOMEM; |
17c23274 GKH |
514 | goto error_no_buffer; |
515 | } | |
033a3fb9 | 516 | |
17c23274 GKH |
517 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
518 | if (!urb) { | |
519 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 520 | retval = -ENOMEM; |
17c23274 GKH |
521 | goto error_no_urb; |
522 | } | |
033a3fb9 | 523 | |
40d2ff32 | 524 | memcpy(buffer, buf, writesize); |
033a3fb9 | 525 | |
40d2ff32 | 526 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
527 | |
528 | usb_fill_bulk_urb(urb, serial->dev, | |
529 | usb_sndbulkpipe(serial->dev, | |
530 | port->bulk_out_endpointAddress), | |
40d2ff32 | 531 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 532 | |
238ebd13 EP |
533 | /* Handle the need to send a zero length packet */ |
534 | urb->transfer_flags |= URB_ZERO_PACKET; | |
535 | ||
e6929a90 ON |
536 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
537 | ||
538 | if (intfdata->suspended) { | |
539 | usb_anchor_urb(urb, &portdata->delayed); | |
540 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
541 | goto skip_power; | |
542 | } else { | |
543 | usb_anchor_urb(urb, &portdata->active); | |
544 | } | |
17c23274 | 545 | /* send it down the pipe */ |
40d2ff32 EP |
546 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
547 | if (retval) { | |
e6929a90 ON |
548 | usb_unanchor_urb(urb); |
549 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 550 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 551 | "with status = %d\n", __func__, retval); |
17c23274 | 552 | goto error; |
e6929a90 ON |
553 | } else { |
554 | intfdata->in_flight++; | |
555 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
556 | } |
557 | ||
e6929a90 | 558 | skip_power: |
17c23274 GKH |
559 | /* we are done with this urb, so let the host driver |
560 | * really free it when it is finished with it */ | |
561 | usb_free_urb(urb); | |
562 | ||
40d2ff32 | 563 | return writesize; |
17c23274 GKH |
564 | error: |
565 | usb_free_urb(urb); | |
566 | error_no_urb: | |
567 | kfree(buffer); | |
568 | error_no_buffer: | |
569 | spin_lock_irqsave(&portdata->lock, flags); | |
570 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
571 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
572 | portdata->outstanding_urbs); | |
17c23274 | 573 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
574 | usb_autopm_put_interface_async(serial->interface); |
575 | error_simple: | |
40d2ff32 | 576 | return retval; |
033a3fb9 KL |
577 | } |
578 | ||
579 | static void sierra_indat_callback(struct urb *urb) | |
580 | { | |
581 | int err; | |
582 | int endpoint; | |
583 | struct usb_serial_port *port; | |
584 | struct tty_struct *tty; | |
585 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 586 | int status = urb->status; |
033a3fb9 | 587 | |
033a3fb9 | 588 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
589 | port = urb->context; |
590 | ||
591 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
033a3fb9 | 592 | |
17dd2215 | 593 | if (status) { |
7384a922 | 594 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 595 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 596 | } else { |
033a3fb9 | 597 | if (urb->actual_length) { |
d95186d1 | 598 | tty = tty_port_tty_get(&port->port); |
b87c6e86 | 599 | if (tty) { |
b87c6e86 EP |
600 | tty_insert_flip_string(tty, data, |
601 | urb->actual_length); | |
602 | tty_flip_buffer_push(tty); | |
603 | ||
604 | tty_kref_put(tty); | |
605 | usb_serial_debug_data(debug, &port->dev, | |
606 | __func__, urb->actual_length, data); | |
607 | } | |
b0cda8c5 | 608 | } else { |
7384a922 | 609 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 610 | " received\n", __func__); |
033a3fb9 KL |
611 | } |
612 | } | |
b0cda8c5 EP |
613 | |
614 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 615 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 616 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 617 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 618 | if (err && err != -EPERM) |
b0cda8c5 EP |
619 | dev_err(&port->dev, "resubmit read urb failed." |
620 | "(%d)\n", err); | |
621 | } | |
622 | ||
033a3fb9 KL |
623 | return; |
624 | } | |
625 | ||
033a3fb9 KL |
626 | static void sierra_instat_callback(struct urb *urb) |
627 | { | |
628 | int err; | |
17dd2215 | 629 | int status = urb->status; |
cdc97792 | 630 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
631 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
632 | struct usb_serial *serial = port->serial; | |
633 | ||
5d44b361 | 634 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 635 | urb, port, portdata); |
033a3fb9 | 636 | |
17dd2215 | 637 | if (status == 0) { |
033a3fb9 KL |
638 | struct usb_ctrlrequest *req_pkt = |
639 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
640 | ||
641 | if (!req_pkt) { | |
7384a922 KL |
642 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
643 | __func__); | |
033a3fb9 KL |
644 | return; |
645 | } | |
646 | if ((req_pkt->bRequestType == 0xA1) && | |
647 | (req_pkt->bRequest == 0x20)) { | |
648 | int old_dcd_state; | |
649 | unsigned char signals = *((unsigned char *) | |
650 | urb->transfer_buffer + | |
651 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 652 | struct tty_struct *tty; |
033a3fb9 | 653 | |
5d44b361 | 654 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 655 | signals); |
033a3fb9 KL |
656 | |
657 | old_dcd_state = portdata->dcd_state; | |
658 | portdata->cts_state = 1; | |
659 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
660 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
661 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
662 | ||
4a90f09b AC |
663 | tty = tty_port_tty_get(&port->port); |
664 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 665 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
666 | tty_hangup(tty); |
667 | tty_kref_put(tty); | |
033a3fb9 | 668 | } else { |
5d44b361 | 669 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
670 | __func__, req_pkt->bRequestType, |
671 | req_pkt->bRequest); | |
033a3fb9 KL |
672 | } |
673 | } else | |
5d44b361 | 674 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
675 | |
676 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 677 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 678 | usb_mark_last_busy(serial->dev); |
033a3fb9 KL |
679 | urb->dev = serial->dev; |
680 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1f87158e | 681 | if (err && err != -EPERM) |
c76a23da EP |
682 | dev_err(&port->dev, "%s: resubmit intr urb " |
683 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
684 | } |
685 | } | |
686 | ||
95da310e | 687 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 688 | { |
95da310e | 689 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
690 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
691 | unsigned long flags; | |
033a3fb9 | 692 | |
5d44b361 | 693 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
033a3fb9 | 694 | |
17c23274 GKH |
695 | /* try to give a good number back based on if we have any free urbs at |
696 | * this point in time */ | |
697 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 698 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 699 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 700 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 701 | return 0; |
033a3fb9 | 702 | } |
17c23274 | 703 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 704 | |
17c23274 | 705 | return 2048; |
033a3fb9 KL |
706 | } |
707 | ||
b9a44bc1 | 708 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 709 | { |
9e85c5f6 | 710 | int i; |
b9a44bc1 | 711 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 712 | |
3a2b808e | 713 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 714 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 715 | |
b9a44bc1 EP |
716 | usb_kill_urb(port->interrupt_in_urb); |
717 | } | |
033a3fb9 | 718 | |
b9a44bc1 EP |
719 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
720 | { | |
721 | int ok_cnt; | |
722 | int err = -EINVAL; | |
723 | int i; | |
724 | struct urb *urb; | |
725 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 726 | |
b9a44bc1 | 727 | ok_cnt = 0; |
3a2b808e | 728 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 729 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 730 | if (!urb) |
033a3fb9 | 731 | continue; |
b9a44bc1 EP |
732 | err = usb_submit_urb(urb, mem_flags); |
733 | if (err) { | |
734 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
735 | __func__, err); | |
736 | } else { | |
737 | ok_cnt++; | |
033a3fb9 | 738 | } |
b9a44bc1 | 739 | } |
033a3fb9 | 740 | |
b9a44bc1 EP |
741 | if (ok_cnt && port->interrupt_in_urb) { |
742 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
743 | if (err) { | |
744 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
745 | __func__, err); | |
033a3fb9 KL |
746 | } |
747 | } | |
748 | ||
b9a44bc1 EP |
749 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
750 | return 0; | |
751 | else | |
752 | return err; | |
753 | } | |
754 | ||
755 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
756 | int dir, void *ctx, int len, | |
757 | gfp_t mem_flags, | |
758 | usb_complete_t callback) | |
759 | { | |
760 | struct urb *urb; | |
761 | u8 *buf; | |
762 | ||
763 | if (endpoint == -1) | |
764 | return NULL; | |
033a3fb9 | 765 | |
b9a44bc1 EP |
766 | urb = usb_alloc_urb(0, mem_flags); |
767 | if (urb == NULL) { | |
768 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
769 | __func__, endpoint); | |
770 | return NULL; | |
9e85c5f6 | 771 | } |
b9a44bc1 EP |
772 | |
773 | buf = kmalloc(len, mem_flags); | |
774 | if (buf) { | |
775 | /* Fill URB using supplied data */ | |
776 | usb_fill_bulk_urb(urb, serial->dev, | |
777 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
778 | buf, len, callback, ctx); | |
779 | ||
780 | /* debug */ | |
781 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
782 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
783 | } else { | |
784 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
785 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
786 | ||
787 | sierra_release_urb(urb); | |
788 | urb = NULL; | |
789 | } | |
790 | ||
791 | return urb; | |
033a3fb9 KL |
792 | } |
793 | ||
b9a44bc1 | 794 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 795 | { |
b9a44bc1 | 796 | int i; |
033a3fb9 KL |
797 | struct usb_serial *serial = port->serial; |
798 | struct sierra_port_private *portdata; | |
e6929a90 ON |
799 | struct sierra_intf_private *intfdata = port->serial->private; |
800 | ||
033a3fb9 | 801 | |
b9a44bc1 | 802 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 803 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
804 | |
805 | portdata->rts_state = 0; | |
806 | portdata->dtr_state = 0; | |
033a3fb9 KL |
807 | |
808 | if (serial->dev) { | |
e33fe4d8 | 809 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
810 | if (!serial->disconnected) { |
811 | serial->interface->needs_remote_wakeup = 0; | |
812 | usb_autopm_get_interface(serial->interface); | |
335f8514 | 813 | sierra_send_setup(port); |
b64dc0a5 | 814 | } |
e33fe4d8 | 815 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
816 | spin_lock_irq(&intfdata->susp_lock); |
817 | portdata->opened = 0; | |
818 | spin_unlock_irq(&intfdata->susp_lock); | |
819 | ||
b9a44bc1 EP |
820 | |
821 | /* Stop reading urbs */ | |
822 | sierra_stop_rx_urbs(port); | |
823 | /* .. and release them */ | |
3a2b808e | 824 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
825 | sierra_release_urb(portdata->in_urbs[i]); |
826 | portdata->in_urbs[i] = NULL; | |
827 | } | |
335f8514 AC |
828 | } |
829 | } | |
830 | ||
a509a7e4 | 831 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 832 | { |
b9a44bc1 EP |
833 | struct sierra_port_private *portdata; |
834 | struct usb_serial *serial = port->serial; | |
e6929a90 | 835 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 836 | int i; |
b9a44bc1 EP |
837 | int err; |
838 | int endpoint; | |
839 | struct urb *urb; | |
840 | ||
841 | portdata = usb_get_serial_port_data(port); | |
842 | ||
5d44b361 | 843 | dev_dbg(&port->dev, "%s\n", __func__); |
b9a44bc1 EP |
844 | |
845 | /* Set some sane defaults */ | |
846 | portdata->rts_state = 1; | |
847 | portdata->dtr_state = 1; | |
848 | ||
849 | ||
850 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 851 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
852 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
853 | IN_BUFLEN, GFP_KERNEL, | |
854 | sierra_indat_callback); | |
855 | portdata->in_urbs[i] = urb; | |
856 | } | |
857 | /* clear halt condition */ | |
858 | usb_clear_halt(serial->dev, | |
859 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
860 | ||
861 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
862 | if (err) { | |
863 | /* get rid of everything as in close */ | |
864 | sierra_close(port); | |
b64dc0a5 EP |
865 | /* restore balance for autopm */ |
866 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
867 | return err; |
868 | } | |
869 | sierra_send_setup(port); | |
870 | ||
e6929a90 ON |
871 | serial->interface->needs_remote_wakeup = 1; |
872 | spin_lock_irq(&intfdata->susp_lock); | |
873 | portdata->opened = 1; | |
874 | spin_unlock_irq(&intfdata->susp_lock); | |
875 | usb_autopm_put_interface(serial->interface); | |
876 | ||
b9a44bc1 EP |
877 | return 0; |
878 | } | |
879 | ||
880 | ||
881 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
882 | { | |
335f8514 AC |
883 | struct usb_serial *serial = port->serial; |
884 | struct sierra_port_private *portdata; | |
033a3fb9 | 885 | |
335f8514 | 886 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
887 | portdata->rts_state = on; |
888 | portdata->dtr_state = on; | |
335f8514 AC |
889 | |
890 | if (serial->dev) { | |
b9a44bc1 EP |
891 | mutex_lock(&serial->disc_mutex); |
892 | if (!serial->disconnected) | |
893 | sierra_send_setup(port); | |
894 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 895 | } |
033a3fb9 KL |
896 | } |
897 | ||
033a3fb9 KL |
898 | static int sierra_startup(struct usb_serial *serial) |
899 | { | |
033a3fb9 KL |
900 | struct usb_serial_port *port; |
901 | struct sierra_port_private *portdata; | |
3a2b808e | 902 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 903 | int i; |
3a2b808e | 904 | u8 ifnum; |
033a3fb9 | 905 | |
5d44b361 | 906 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 907 | |
228426ed | 908 | /* Set Device mode to D0 */ |
112225b1 KL |
909 | sierra_set_power_state(serial->dev, 0x0000); |
910 | ||
228426ed KL |
911 | /* Check NMEA and set */ |
912 | if (nmea) | |
913 | sierra_vsc_set_nmea(serial->dev, 1); | |
914 | ||
033a3fb9 KL |
915 | /* Now setup per port private data */ |
916 | for (i = 0; i < serial->num_ports; i++) { | |
917 | port = serial->port[i]; | |
918 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
919 | if (!portdata) { | |
7384a922 | 920 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 921 | "sierra_port_private (%d) failed!\n", |
7384a922 | 922 | __func__, i); |
17c23274 | 923 | return -ENOMEM; |
033a3fb9 | 924 | } |
17c23274 | 925 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
926 | init_usb_anchor(&portdata->active); |
927 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
928 | ifnum = i; |
929 | /* Assume low memory requirements */ | |
930 | portdata->num_out_urbs = N_OUT_URB; | |
931 | portdata->num_in_urbs = N_IN_URB; | |
932 | ||
933 | /* Determine actual memory requirements */ | |
934 | if (serial->num_ports == 1) { | |
935 | /* Get interface number for composite device */ | |
936 | ifnum = sierra_calc_interface(serial); | |
937 | himemoryp = | |
938 | (struct sierra_iface_info *)&typeB_interface_list; | |
939 | if (is_himemory(ifnum, himemoryp)) { | |
940 | portdata->num_out_urbs = N_OUT_URB_HM; | |
941 | portdata->num_in_urbs = N_IN_URB_HM; | |
942 | } | |
943 | } | |
944 | else { | |
945 | himemoryp = | |
946 | (struct sierra_iface_info *)&typeA_interface_list; | |
947 | if (is_himemory(i, himemoryp)) { | |
948 | portdata->num_out_urbs = N_OUT_URB_HM; | |
949 | portdata->num_in_urbs = N_IN_URB_HM; | |
950 | } | |
951 | } | |
952 | dev_dbg(&serial->dev->dev, | |
953 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
954 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 955 | /* Set the port private data pointer */ |
033a3fb9 | 956 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
957 | } |
958 | ||
17c23274 | 959 | return 0; |
033a3fb9 KL |
960 | } |
961 | ||
7bae0a07 | 962 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 963 | { |
b9a44bc1 | 964 | int i; |
033a3fb9 KL |
965 | struct usb_serial_port *port; |
966 | struct sierra_port_private *portdata; | |
967 | ||
5d44b361 | 968 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 969 | |
033a3fb9 KL |
970 | for (i = 0; i < serial->num_ports; ++i) { |
971 | port = serial->port[i]; | |
f094e4f3 GKH |
972 | if (!port) |
973 | continue; | |
033a3fb9 | 974 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
975 | if (!portdata) |
976 | continue; | |
9e85c5f6 | 977 | kfree(portdata); |
033a3fb9 KL |
978 | } |
979 | } | |
980 | ||
cd604513 | 981 | #ifdef CONFIG_PM |
e6929a90 ON |
982 | static void stop_read_write_urbs(struct usb_serial *serial) |
983 | { | |
b64dc0a5 | 984 | int i; |
e6929a90 ON |
985 | struct usb_serial_port *port; |
986 | struct sierra_port_private *portdata; | |
987 | ||
988 | /* Stop reading/writing urbs */ | |
989 | for (i = 0; i < serial->num_ports; ++i) { | |
990 | port = serial->port[i]; | |
991 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 992 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
993 | usb_kill_anchored_urbs(&portdata->active); |
994 | } | |
995 | } | |
996 | ||
997 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
998 | { | |
999 | struct sierra_intf_private *intfdata; | |
1000 | int b; | |
1001 | ||
fb34d537 | 1002 | if (message.event & PM_EVENT_AUTO) { |
e6929a90 ON |
1003 | intfdata = serial->private; |
1004 | spin_lock_irq(&intfdata->susp_lock); | |
1005 | b = intfdata->in_flight; | |
1006 | ||
1007 | if (b) { | |
1008 | spin_unlock_irq(&intfdata->susp_lock); | |
1009 | return -EBUSY; | |
1010 | } else { | |
1011 | intfdata->suspended = 1; | |
1012 | spin_unlock_irq(&intfdata->susp_lock); | |
1013 | } | |
1014 | } | |
1015 | stop_read_write_urbs(serial); | |
1016 | ||
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | static int sierra_resume(struct usb_serial *serial) | |
1021 | { | |
1022 | struct usb_serial_port *port; | |
1023 | struct sierra_intf_private *intfdata = serial->private; | |
1024 | struct sierra_port_private *portdata; | |
1025 | struct urb *urb; | |
1026 | int ec = 0; | |
1027 | int i, err; | |
1028 | ||
1029 | spin_lock_irq(&intfdata->susp_lock); | |
1030 | for (i = 0; i < serial->num_ports; i++) { | |
1031 | port = serial->port[i]; | |
1032 | portdata = usb_get_serial_port_data(port); | |
1033 | ||
1034 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1035 | usb_anchor_urb(urb, &portdata->active); | |
1036 | intfdata->in_flight++; | |
1037 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1038 | if (err < 0) { | |
1039 | intfdata->in_flight--; | |
1040 | usb_unanchor_urb(urb); | |
1041 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1042 | break; | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | if (portdata->opened) { | |
1047 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1048 | if (err) | |
1049 | ec++; | |
1050 | } | |
1051 | } | |
1052 | intfdata->suspended = 0; | |
1053 | spin_unlock_irq(&intfdata->susp_lock); | |
1054 | ||
1055 | return ec ? -EIO : 0; | |
1056 | } | |
7650cd96 EP |
1057 | |
1058 | static int sierra_reset_resume(struct usb_interface *intf) | |
1059 | { | |
1060 | struct usb_serial *serial = usb_get_intfdata(intf); | |
1061 | dev_err(&serial->dev->dev, "%s\n", __func__); | |
1062 | return usb_serial_resume(intf); | |
1063 | } | |
cd604513 AM |
1064 | #else |
1065 | #define sierra_suspend NULL | |
1066 | #define sierra_resume NULL | |
7650cd96 | 1067 | #define sierra_reset_resume NULL |
cd604513 | 1068 | #endif |
e6929a90 | 1069 | |
7650cd96 EP |
1070 | static struct usb_driver sierra_driver = { |
1071 | .name = "sierra", | |
1072 | .probe = usb_serial_probe, | |
1073 | .disconnect = usb_serial_disconnect, | |
1074 | .suspend = usb_serial_suspend, | |
1075 | .resume = usb_serial_resume, | |
1076 | .reset_resume = sierra_reset_resume, | |
1077 | .id_table = id_table, | |
1078 | .no_dynamic_id = 1, | |
1079 | .supports_autosuspend = 1, | |
1080 | }; | |
1081 | ||
228426ed | 1082 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1083 | .driver = { |
1084 | .owner = THIS_MODULE, | |
4e0fee82 | 1085 | .name = "sierra", |
964ee1de | 1086 | }, |
228426ed KL |
1087 | .description = "Sierra USB modem", |
1088 | .id_table = id_table, | |
d9b1b787 | 1089 | .usb_driver = &sierra_driver, |
228426ed KL |
1090 | .calc_num_ports = sierra_calc_num_ports, |
1091 | .probe = sierra_probe, | |
964ee1de GKH |
1092 | .open = sierra_open, |
1093 | .close = sierra_close, | |
335f8514 | 1094 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1095 | .write = sierra_write, |
1096 | .write_room = sierra_write_room, | |
964ee1de | 1097 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1098 | .tiocmget = sierra_tiocmget, |
1099 | .tiocmset = sierra_tiocmset, | |
1100 | .attach = sierra_startup, | |
7bae0a07 | 1101 | .release = sierra_release, |
e6929a90 ON |
1102 | .suspend = sierra_suspend, |
1103 | .resume = sierra_resume, | |
964ee1de GKH |
1104 | .read_int_callback = sierra_instat_callback, |
1105 | }; | |
1106 | ||
1107 | /* Functions used by new usb-serial code. */ | |
1108 | static int __init sierra_init(void) | |
1109 | { | |
1110 | int retval; | |
228426ed | 1111 | retval = usb_serial_register(&sierra_device); |
964ee1de | 1112 | if (retval) |
228426ed | 1113 | goto failed_device_register; |
964ee1de GKH |
1114 | |
1115 | ||
1116 | retval = usb_register(&sierra_driver); | |
1117 | if (retval) | |
1118 | goto failed_driver_register; | |
1119 | ||
c197a8db GKH |
1120 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
1121 | DRIVER_DESC "\n"); | |
964ee1de GKH |
1122 | |
1123 | return 0; | |
1124 | ||
1125 | failed_driver_register: | |
228426ed KL |
1126 | usb_serial_deregister(&sierra_device); |
1127 | failed_device_register: | |
964ee1de GKH |
1128 | return retval; |
1129 | } | |
1130 | ||
1131 | static void __exit sierra_exit(void) | |
1132 | { | |
9660ea36 | 1133 | usb_deregister(&sierra_driver); |
228426ed | 1134 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
1135 | } |
1136 | ||
1137 | module_init(sierra_init); | |
1138 | module_exit(sierra_exit); | |
1139 | ||
033a3fb9 KL |
1140 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1141 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1142 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1143 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1144 | |
4e0fee82 | 1145 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1146 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1147 | ||
033a3fb9 KL |
1148 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1149 | MODULE_PARM_DESC(debug, "Debug messages"); |