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 | 49 | static bool 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 | 64 | { |
64318a52 | 65 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 66 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 67 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
68 | swiState, /* __u16 value */ |
69 | 0, /* __u16 index */ | |
70 | NULL, /* void *data */ | |
71 | 0, /* __u16 size */ | |
72 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
73 | } |
74 | ||
228426ed | 75 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 | 76 | { |
64318a52 | 77 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 78 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ |
f3564de4 | 79 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
80 | enable, /* __u16 value */ |
81 | 0x0000, /* __u16 index */ | |
82 | NULL, /* void *data */ | |
83 | 0, /* __u16 size */ | |
84 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
228426ed KL |
85 | } |
86 | ||
87 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
88 | { | |
9636b683 EP |
89 | int num_ports = 0; |
90 | u8 ifnum, numendpoints; | |
228426ed | 91 | |
9636b683 EP |
92 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
93 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 94 | |
9636b683 EP |
95 | /* Dummy interface present on some SKUs should be ignored */ |
96 | if (ifnum == 0x99) | |
97 | num_ports = 0; | |
98 | else if (numendpoints <= 3) | |
99 | num_ports = 1; | |
100 | else | |
101 | num_ports = (numendpoints-1)/2; | |
102 | return num_ports; | |
228426ed KL |
103 | } |
104 | ||
4db2299d EP |
105 | static int is_blacklisted(const u8 ifnum, |
106 | const struct sierra_iface_info *blacklist) | |
107 | { | |
108 | const u8 *info; | |
109 | int i; | |
110 | ||
111 | if (blacklist) { | |
112 | info = blacklist->ifaceinfo; | |
113 | ||
114 | for (i = 0; i < blacklist->infolen; i++) { | |
115 | if (info[i] == ifnum) | |
116 | return 1; | |
117 | } | |
118 | } | |
119 | return 0; | |
120 | } | |
121 | ||
3a2b808e EP |
122 | static int is_himemory(const u8 ifnum, |
123 | const struct sierra_iface_info *himemorylist) | |
124 | { | |
125 | const u8 *info; | |
126 | int i; | |
127 | ||
128 | if (himemorylist) { | |
129 | info = himemorylist->ifaceinfo; | |
130 | ||
131 | for (i=0; i < himemorylist->infolen; i++) { | |
132 | if (info[i] == ifnum) | |
133 | return 1; | |
134 | } | |
135 | } | |
136 | return 0; | |
137 | } | |
138 | ||
7106967e KL |
139 | static int sierra_calc_interface(struct usb_serial *serial) |
140 | { | |
4e0fee82 KL |
141 | int interface; |
142 | struct usb_interface *p_interface; | |
143 | struct usb_host_interface *p_host_interface; | |
7106967e | 144 | |
4e0fee82 KL |
145 | /* Get the interface structure pointer from the serial struct */ |
146 | p_interface = serial->interface; | |
7106967e | 147 | |
4e0fee82 KL |
148 | /* Get a pointer to the host interface structure */ |
149 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 150 | |
4e0fee82 KL |
151 | /* read the interface descriptor for this active altsetting |
152 | * to find out the interface number we are on | |
153 | */ | |
154 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 155 | |
4e0fee82 | 156 | return interface; |
7106967e KL |
157 | } |
158 | ||
228426ed KL |
159 | static int sierra_probe(struct usb_serial *serial, |
160 | const struct usb_device_id *id) | |
161 | { | |
162 | int result = 0; | |
112225b1 | 163 | struct usb_device *udev; |
e6929a90 | 164 | struct sierra_intf_private *data; |
228426ed | 165 | u8 ifnum; |
112225b1 | 166 | |
228426ed | 167 | udev = serial->dev; |
e3173b22 | 168 | ifnum = sierra_calc_interface(serial); |
64318a52 | 169 | |
e3173b22 KL |
170 | /* |
171 | * If this interface supports more than 1 alternate | |
172 | * select the 2nd one | |
173 | */ | |
174 | if (serial->interface->num_altsetting == 2) { | |
175 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
176 | ifnum); | |
177 | /* We know the alternate setting is 1 for the MC8785 */ | |
178 | usb_set_interface(udev, ifnum, 1); | |
179 | } | |
7106967e | 180 | |
4db2299d EP |
181 | /* ifnum could have changed - by calling usb_set_interface */ |
182 | ifnum = sierra_calc_interface(serial); | |
183 | ||
184 | if (is_blacklisted(ifnum, | |
185 | (struct sierra_iface_info *)id->driver_info)) { | |
186 | dev_dbg(&serial->dev->dev, | |
187 | "Ignoring blacklisted interface #%d\n", ifnum); | |
188 | return -ENODEV; | |
189 | } | |
190 | ||
e6929a90 ON |
191 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
192 | if (!data) | |
193 | return -ENOMEM; | |
194 | spin_lock_init(&data->susp_lock); | |
195 | ||
228426ed | 196 | return result; |
112225b1 | 197 | } |
033a3fb9 | 198 | |
3a2b808e EP |
199 | /* interfaces with higher memory requirements */ |
200 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
201 | static const struct sierra_iface_info typeA_interface_list = { | |
202 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
203 | .ifaceinfo = hi_memory_typeA_ifaces, | |
204 | }; | |
205 | ||
206 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
207 | static const struct sierra_iface_info typeB_interface_list = { | |
208 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
209 | .ifaceinfo = hi_memory_typeB_ifaces, | |
210 | }; | |
211 | ||
212 | /* 'blacklist' of interfaces not served by this driver */ | |
749541d1 | 213 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; |
4db2299d EP |
214 | static const struct sierra_iface_info direct_ip_interface_blacklist = { |
215 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
216 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
217 | }; | |
218 | ||
7d40d7e8 | 219 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
220 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
221 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 222 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
223 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
224 | ||
e43062dd | 225 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 226 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 227 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 228 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 229 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
230 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
231 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
232 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 233 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 234 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 235 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 236 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
9d72c81d | 237 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ |
c5f3d87d | 238 | /* Sierra Wireless C597 */ |
4e0fee82 | 239 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 240 | /* Sierra Wireless T598 */ |
e3173b22 | 241 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
242 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
243 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
244 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
245 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 246 | |
69de51fd KL |
247 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
248 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
249 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
250 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
251 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
252 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 253 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 254 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 255 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 256 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 257 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 258 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 259 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
260 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
261 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
262 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
263 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
264 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
265 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 266 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 267 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
268 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
269 | { USB_DEVICE(0x1199, 0x683C) }, | |
270 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
271 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
272 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
273 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
274 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
275 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
276 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 277 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 278 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
279 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
280 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
281 | /* Sierra Wireless C885 */ | |
282 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 283 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 284 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 285 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 286 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 287 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 288 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 289 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
290 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
291 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
19a3dd15 TC |
292 | }, |
293 | /* AT&T Direct IP LTE modems */ | |
294 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
295 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 296 | }, |
e1dc5157 JT |
297 | { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */ |
298 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
299 | }, | |
1ebca9da | 300 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 301 | |
033a3fb9 KL |
302 | { } |
303 | }; | |
964ee1de | 304 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 305 | |
033a3fb9 | 306 | |
033a3fb9 | 307 | struct sierra_port_private { |
17c23274 GKH |
308 | spinlock_t lock; /* lock the structure */ |
309 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
310 | struct usb_anchor active; |
311 | struct usb_anchor delayed; | |
17c23274 | 312 | |
3a2b808e EP |
313 | int num_out_urbs; |
314 | int num_in_urbs; | |
4f4f9c53 | 315 | /* Input endpoints and buffers for this port */ |
3a2b808e | 316 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
317 | |
318 | /* Settings for the port */ | |
319 | int rts_state; /* Handshaking pins (outputs) */ | |
320 | int dtr_state; | |
321 | int cts_state; /* Handshaking pins (inputs) */ | |
322 | int dsr_state; | |
323 | int dcd_state; | |
324 | int ri_state; | |
e6929a90 | 325 | unsigned int opened:1; |
033a3fb9 KL |
326 | }; |
327 | ||
335f8514 | 328 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 329 | { |
964ee1de GKH |
330 | struct usb_serial *serial = port->serial; |
331 | struct sierra_port_private *portdata; | |
228426ed | 332 | __u16 interface = 0; |
335f8514 | 333 | int val = 0; |
3c77d513 EP |
334 | int do_send = 0; |
335 | int retval; | |
033a3fb9 | 336 | |
964ee1de | 337 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 338 | |
335f8514 AC |
339 | if (portdata->dtr_state) |
340 | val |= 0x01; | |
341 | if (portdata->rts_state) | |
342 | val |= 0x02; | |
343 | ||
344 | /* If composite device then properly report interface */ | |
00b040de | 345 | if (serial->num_ports == 1) { |
335f8514 | 346 | interface = sierra_calc_interface(serial); |
00b040de AC |
347 | /* Control message is sent only to interfaces with |
348 | * interrupt_in endpoints | |
349 | */ | |
350 | if (port->interrupt_in_urb) { | |
351 | /* send control message */ | |
3c77d513 | 352 | do_send = 1; |
00b040de AC |
353 | } |
354 | } | |
335f8514 AC |
355 | |
356 | /* Otherwise the need to do non-composite mapping */ | |
357 | else { | |
358 | if (port->bulk_out_endpointAddress == 2) | |
359 | interface = 0; | |
360 | else if (port->bulk_out_endpointAddress == 4) | |
361 | interface = 1; | |
362 | else if (port->bulk_out_endpointAddress == 5) | |
363 | interface = 2; | |
3c77d513 EP |
364 | |
365 | do_send = 1; | |
00b040de | 366 | } |
3c77d513 EP |
367 | if (!do_send) |
368 | return 0; | |
369 | ||
5b7c1178 ON |
370 | retval = usb_autopm_get_interface(serial->interface); |
371 | if (retval < 0) | |
372 | return retval; | |
373 | ||
3c77d513 EP |
374 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
375 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
376 | usb_autopm_put_interface(serial->interface); | |
377 | ||
378 | return retval; | |
69de51fd KL |
379 | } |
380 | ||
95da310e AC |
381 | static void sierra_set_termios(struct tty_struct *tty, |
382 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 383 | { |
adc8d746 | 384 | tty_termios_copy_hw(&tty->termios, old_termios); |
335f8514 | 385 | sierra_send_setup(port); |
033a3fb9 KL |
386 | } |
387 | ||
60b33c13 | 388 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 389 | { |
95da310e | 390 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
391 | unsigned int value; |
392 | struct sierra_port_private *portdata; | |
393 | ||
394 | portdata = usb_get_serial_port_data(port); | |
395 | ||
396 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
397 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
398 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
399 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
400 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
401 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
402 | ||
403 | return value; | |
404 | } | |
405 | ||
20b9d177 | 406 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
407 | unsigned int set, unsigned int clear) |
408 | { | |
95da310e | 409 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
410 | struct sierra_port_private *portdata; |
411 | ||
412 | portdata = usb_get_serial_port_data(port); | |
413 | ||
414 | if (set & TIOCM_RTS) | |
415 | portdata->rts_state = 1; | |
416 | if (set & TIOCM_DTR) | |
417 | portdata->dtr_state = 1; | |
418 | ||
419 | if (clear & TIOCM_RTS) | |
420 | portdata->rts_state = 0; | |
421 | if (clear & TIOCM_DTR) | |
422 | portdata->dtr_state = 0; | |
335f8514 | 423 | return sierra_send_setup(port); |
033a3fb9 KL |
424 | } |
425 | ||
b9a44bc1 EP |
426 | static void sierra_release_urb(struct urb *urb) |
427 | { | |
428 | struct usb_serial_port *port; | |
429 | if (urb) { | |
64318a52 | 430 | port = urb->context; |
b9a44bc1 EP |
431 | kfree(urb->transfer_buffer); |
432 | usb_free_urb(urb); | |
433 | } | |
434 | } | |
435 | ||
17c23274 GKH |
436 | static void sierra_outdat_callback(struct urb *urb) |
437 | { | |
438 | struct usb_serial_port *port = urb->context; | |
439 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 440 | struct sierra_intf_private *intfdata; |
17c23274 | 441 | int status = urb->status; |
17c23274 | 442 | |
e6929a90 | 443 | intfdata = port->serial->private; |
17c23274 GKH |
444 | |
445 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
446 | kfree(urb->transfer_buffer); | |
e6929a90 | 447 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 448 | if (status) |
7384a922 | 449 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 450 | "received: %d\n", __func__, status); |
17c23274 | 451 | |
e6929a90 | 452 | spin_lock(&portdata->lock); |
17c23274 | 453 | --portdata->outstanding_urbs; |
e6929a90 ON |
454 | spin_unlock(&portdata->lock); |
455 | spin_lock(&intfdata->susp_lock); | |
456 | --intfdata->in_flight; | |
457 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
458 | |
459 | usb_serial_port_softint(port); | |
460 | } | |
461 | ||
033a3fb9 | 462 | /* Write */ |
95da310e AC |
463 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
464 | const unsigned char *buf, int count) | |
033a3fb9 | 465 | { |
a45a1e07 | 466 | struct sierra_port_private *portdata; |
e6929a90 | 467 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
468 | struct usb_serial *serial = port->serial; |
469 | unsigned long flags; | |
470 | unsigned char *buffer; | |
471 | struct urb *urb; | |
40d2ff32 EP |
472 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
473 | int retval = 0; | |
474 | ||
475 | /* verify that we actually have some data to write */ | |
476 | if (count == 0) | |
477 | return 0; | |
033a3fb9 KL |
478 | |
479 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 480 | intfdata = serial->private; |
033a3fb9 | 481 | |
0b10395a | 482 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 483 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
484 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
485 | portdata->outstanding_urbs); | |
3a2b808e | 486 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 487 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 488 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
489 | return 0; |
490 | } | |
491 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
492 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
493 | portdata->outstanding_urbs); | |
17c23274 GKH |
494 | spin_unlock_irqrestore(&portdata->lock, flags); |
495 | ||
e6929a90 ON |
496 | retval = usb_autopm_get_interface_async(serial->interface); |
497 | if (retval < 0) { | |
498 | spin_lock_irqsave(&portdata->lock, flags); | |
499 | portdata->outstanding_urbs--; | |
500 | spin_unlock_irqrestore(&portdata->lock, flags); | |
501 | goto error_simple; | |
502 | } | |
503 | ||
40d2ff32 | 504 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
505 | if (!buffer) { |
506 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 507 | retval = -ENOMEM; |
17c23274 GKH |
508 | goto error_no_buffer; |
509 | } | |
033a3fb9 | 510 | |
17c23274 GKH |
511 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
512 | if (!urb) { | |
513 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 514 | retval = -ENOMEM; |
17c23274 GKH |
515 | goto error_no_urb; |
516 | } | |
033a3fb9 | 517 | |
40d2ff32 | 518 | memcpy(buffer, buf, writesize); |
033a3fb9 | 519 | |
59d33f2f | 520 | usb_serial_debug_data(&port->dev, __func__, writesize, buffer); |
17c23274 GKH |
521 | |
522 | usb_fill_bulk_urb(urb, serial->dev, | |
523 | usb_sndbulkpipe(serial->dev, | |
524 | port->bulk_out_endpointAddress), | |
40d2ff32 | 525 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 526 | |
238ebd13 EP |
527 | /* Handle the need to send a zero length packet */ |
528 | urb->transfer_flags |= URB_ZERO_PACKET; | |
529 | ||
e6929a90 ON |
530 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
531 | ||
532 | if (intfdata->suspended) { | |
533 | usb_anchor_urb(urb, &portdata->delayed); | |
534 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
535 | goto skip_power; | |
536 | } else { | |
537 | usb_anchor_urb(urb, &portdata->active); | |
538 | } | |
17c23274 | 539 | /* send it down the pipe */ |
40d2ff32 EP |
540 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
541 | if (retval) { | |
e6929a90 ON |
542 | usb_unanchor_urb(urb); |
543 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 544 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 545 | "with status = %d\n", __func__, retval); |
17c23274 | 546 | goto error; |
e6929a90 ON |
547 | } else { |
548 | intfdata->in_flight++; | |
549 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
550 | } |
551 | ||
e6929a90 | 552 | skip_power: |
17c23274 GKH |
553 | /* we are done with this urb, so let the host driver |
554 | * really free it when it is finished with it */ | |
555 | usb_free_urb(urb); | |
556 | ||
40d2ff32 | 557 | return writesize; |
17c23274 GKH |
558 | error: |
559 | usb_free_urb(urb); | |
560 | error_no_urb: | |
561 | kfree(buffer); | |
562 | error_no_buffer: | |
563 | spin_lock_irqsave(&portdata->lock, flags); | |
564 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
565 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
566 | portdata->outstanding_urbs); | |
17c23274 | 567 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
568 | usb_autopm_put_interface_async(serial->interface); |
569 | error_simple: | |
40d2ff32 | 570 | return retval; |
033a3fb9 KL |
571 | } |
572 | ||
573 | static void sierra_indat_callback(struct urb *urb) | |
574 | { | |
575 | int err; | |
576 | int endpoint; | |
577 | struct usb_serial_port *port; | |
578 | struct tty_struct *tty; | |
579 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 580 | int status = urb->status; |
033a3fb9 | 581 | |
033a3fb9 | 582 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
583 | port = urb->context; |
584 | ||
17dd2215 | 585 | if (status) { |
7384a922 | 586 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 587 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 588 | } else { |
033a3fb9 | 589 | if (urb->actual_length) { |
d95186d1 | 590 | tty = tty_port_tty_get(&port->port); |
b87c6e86 | 591 | if (tty) { |
b87c6e86 EP |
592 | tty_insert_flip_string(tty, data, |
593 | urb->actual_length); | |
594 | tty_flip_buffer_push(tty); | |
595 | ||
596 | tty_kref_put(tty); | |
59d33f2f GKH |
597 | usb_serial_debug_data(&port->dev, __func__, |
598 | urb->actual_length, data); | |
b87c6e86 | 599 | } |
b0cda8c5 | 600 | } else { |
7384a922 | 601 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 602 | " received\n", __func__); |
033a3fb9 KL |
603 | } |
604 | } | |
b0cda8c5 EP |
605 | |
606 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 607 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 608 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 609 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 610 | if (err && err != -EPERM) |
b0cda8c5 EP |
611 | dev_err(&port->dev, "resubmit read urb failed." |
612 | "(%d)\n", err); | |
613 | } | |
033a3fb9 KL |
614 | } |
615 | ||
033a3fb9 KL |
616 | static void sierra_instat_callback(struct urb *urb) |
617 | { | |
618 | int err; | |
17dd2215 | 619 | int status = urb->status; |
cdc97792 | 620 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
621 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
622 | struct usb_serial *serial = port->serial; | |
623 | ||
5d44b361 | 624 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 625 | urb, port, portdata); |
033a3fb9 | 626 | |
17dd2215 | 627 | if (status == 0) { |
033a3fb9 KL |
628 | struct usb_ctrlrequest *req_pkt = |
629 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
630 | ||
631 | if (!req_pkt) { | |
7384a922 KL |
632 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
633 | __func__); | |
033a3fb9 KL |
634 | return; |
635 | } | |
636 | if ((req_pkt->bRequestType == 0xA1) && | |
637 | (req_pkt->bRequest == 0x20)) { | |
638 | int old_dcd_state; | |
639 | unsigned char signals = *((unsigned char *) | |
640 | urb->transfer_buffer + | |
641 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 642 | struct tty_struct *tty; |
033a3fb9 | 643 | |
5d44b361 | 644 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 645 | signals); |
033a3fb9 KL |
646 | |
647 | old_dcd_state = portdata->dcd_state; | |
648 | portdata->cts_state = 1; | |
649 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
650 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
651 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
652 | ||
4a90f09b AC |
653 | tty = tty_port_tty_get(&port->port); |
654 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 655 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
656 | tty_hangup(tty); |
657 | tty_kref_put(tty); | |
033a3fb9 | 658 | } else { |
5d44b361 | 659 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
660 | __func__, req_pkt->bRequestType, |
661 | req_pkt->bRequest); | |
033a3fb9 KL |
662 | } |
663 | } else | |
5d44b361 | 664 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
665 | |
666 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 667 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 668 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 669 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 670 | if (err && err != -EPERM) |
c76a23da EP |
671 | dev_err(&port->dev, "%s: resubmit intr urb " |
672 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
673 | } |
674 | } | |
675 | ||
95da310e | 676 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 677 | { |
95da310e | 678 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
679 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
680 | unsigned long flags; | |
033a3fb9 | 681 | |
17c23274 GKH |
682 | /* try to give a good number back based on if we have any free urbs at |
683 | * this point in time */ | |
684 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 685 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 686 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 687 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 688 | return 0; |
033a3fb9 | 689 | } |
17c23274 | 690 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 691 | |
17c23274 | 692 | return 2048; |
033a3fb9 KL |
693 | } |
694 | ||
b9a44bc1 | 695 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 696 | { |
9e85c5f6 | 697 | int i; |
b9a44bc1 | 698 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 699 | |
3a2b808e | 700 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 701 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 702 | |
b9a44bc1 EP |
703 | usb_kill_urb(port->interrupt_in_urb); |
704 | } | |
033a3fb9 | 705 | |
b9a44bc1 EP |
706 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
707 | { | |
708 | int ok_cnt; | |
709 | int err = -EINVAL; | |
710 | int i; | |
711 | struct urb *urb; | |
712 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 713 | |
b9a44bc1 | 714 | ok_cnt = 0; |
3a2b808e | 715 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 716 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 717 | if (!urb) |
033a3fb9 | 718 | continue; |
b9a44bc1 EP |
719 | err = usb_submit_urb(urb, mem_flags); |
720 | if (err) { | |
721 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
722 | __func__, err); | |
723 | } else { | |
724 | ok_cnt++; | |
033a3fb9 | 725 | } |
b9a44bc1 | 726 | } |
033a3fb9 | 727 | |
b9a44bc1 EP |
728 | if (ok_cnt && port->interrupt_in_urb) { |
729 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
730 | if (err) { | |
731 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
732 | __func__, err); | |
033a3fb9 KL |
733 | } |
734 | } | |
735 | ||
b9a44bc1 EP |
736 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
737 | return 0; | |
738 | else | |
739 | return err; | |
740 | } | |
741 | ||
742 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
743 | int dir, void *ctx, int len, | |
744 | gfp_t mem_flags, | |
745 | usb_complete_t callback) | |
746 | { | |
747 | struct urb *urb; | |
748 | u8 *buf; | |
749 | ||
750 | if (endpoint == -1) | |
751 | return NULL; | |
033a3fb9 | 752 | |
b9a44bc1 EP |
753 | urb = usb_alloc_urb(0, mem_flags); |
754 | if (urb == NULL) { | |
755 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
756 | __func__, endpoint); | |
757 | return NULL; | |
9e85c5f6 | 758 | } |
b9a44bc1 EP |
759 | |
760 | buf = kmalloc(len, mem_flags); | |
761 | if (buf) { | |
762 | /* Fill URB using supplied data */ | |
763 | usb_fill_bulk_urb(urb, serial->dev, | |
764 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
765 | buf, len, callback, ctx); | |
766 | ||
b9a44bc1 EP |
767 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, |
768 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
769 | } else { | |
770 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
771 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
772 | ||
773 | sierra_release_urb(urb); | |
774 | urb = NULL; | |
775 | } | |
776 | ||
777 | return urb; | |
033a3fb9 KL |
778 | } |
779 | ||
b9a44bc1 | 780 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 781 | { |
b9a44bc1 | 782 | int i; |
033a3fb9 KL |
783 | struct usb_serial *serial = port->serial; |
784 | struct sierra_port_private *portdata; | |
e6929a90 ON |
785 | struct sierra_intf_private *intfdata = port->serial->private; |
786 | ||
033a3fb9 | 787 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
788 | |
789 | portdata->rts_state = 0; | |
790 | portdata->dtr_state = 0; | |
033a3fb9 KL |
791 | |
792 | if (serial->dev) { | |
e33fe4d8 | 793 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
794 | if (!serial->disconnected) { |
795 | serial->interface->needs_remote_wakeup = 0; | |
5b7c1178 ON |
796 | /* odd error handling due to pm counters */ |
797 | if (!usb_autopm_get_interface(serial->interface)) | |
798 | sierra_send_setup(port); | |
799 | else | |
800 | usb_autopm_get_interface_no_resume(serial->interface); | |
801 | ||
b64dc0a5 | 802 | } |
e33fe4d8 | 803 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
804 | spin_lock_irq(&intfdata->susp_lock); |
805 | portdata->opened = 0; | |
806 | spin_unlock_irq(&intfdata->susp_lock); | |
807 | ||
b9a44bc1 EP |
808 | |
809 | /* Stop reading urbs */ | |
810 | sierra_stop_rx_urbs(port); | |
811 | /* .. and release them */ | |
3a2b808e | 812 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
813 | sierra_release_urb(portdata->in_urbs[i]); |
814 | portdata->in_urbs[i] = NULL; | |
815 | } | |
335f8514 AC |
816 | } |
817 | } | |
818 | ||
a509a7e4 | 819 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 820 | { |
b9a44bc1 EP |
821 | struct sierra_port_private *portdata; |
822 | struct usb_serial *serial = port->serial; | |
e6929a90 | 823 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 824 | int i; |
b9a44bc1 EP |
825 | int err; |
826 | int endpoint; | |
827 | struct urb *urb; | |
828 | ||
829 | portdata = usb_get_serial_port_data(port); | |
830 | ||
b9a44bc1 EP |
831 | /* Set some sane defaults */ |
832 | portdata->rts_state = 1; | |
833 | portdata->dtr_state = 1; | |
834 | ||
835 | ||
836 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 837 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
838 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
839 | IN_BUFLEN, GFP_KERNEL, | |
840 | sierra_indat_callback); | |
841 | portdata->in_urbs[i] = urb; | |
842 | } | |
843 | /* clear halt condition */ | |
844 | usb_clear_halt(serial->dev, | |
845 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
846 | ||
847 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
848 | if (err) { | |
849 | /* get rid of everything as in close */ | |
850 | sierra_close(port); | |
b64dc0a5 | 851 | /* restore balance for autopm */ |
5b7c1178 ON |
852 | if (!serial->disconnected) |
853 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
854 | return err; |
855 | } | |
856 | sierra_send_setup(port); | |
857 | ||
e6929a90 ON |
858 | serial->interface->needs_remote_wakeup = 1; |
859 | spin_lock_irq(&intfdata->susp_lock); | |
860 | portdata->opened = 1; | |
861 | spin_unlock_irq(&intfdata->susp_lock); | |
862 | usb_autopm_put_interface(serial->interface); | |
863 | ||
b9a44bc1 EP |
864 | return 0; |
865 | } | |
866 | ||
867 | ||
868 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
869 | { | |
335f8514 AC |
870 | struct usb_serial *serial = port->serial; |
871 | struct sierra_port_private *portdata; | |
033a3fb9 | 872 | |
335f8514 | 873 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
874 | portdata->rts_state = on; |
875 | portdata->dtr_state = on; | |
335f8514 AC |
876 | |
877 | if (serial->dev) { | |
b9a44bc1 EP |
878 | mutex_lock(&serial->disc_mutex); |
879 | if (!serial->disconnected) | |
880 | sierra_send_setup(port); | |
881 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 882 | } |
033a3fb9 KL |
883 | } |
884 | ||
033a3fb9 KL |
885 | static int sierra_startup(struct usb_serial *serial) |
886 | { | |
033a3fb9 KL |
887 | struct usb_serial_port *port; |
888 | struct sierra_port_private *portdata; | |
3a2b808e | 889 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 890 | int i; |
3a2b808e | 891 | u8 ifnum; |
033a3fb9 | 892 | |
228426ed | 893 | /* Set Device mode to D0 */ |
112225b1 KL |
894 | sierra_set_power_state(serial->dev, 0x0000); |
895 | ||
228426ed KL |
896 | /* Check NMEA and set */ |
897 | if (nmea) | |
898 | sierra_vsc_set_nmea(serial->dev, 1); | |
899 | ||
033a3fb9 KL |
900 | /* Now setup per port private data */ |
901 | for (i = 0; i < serial->num_ports; i++) { | |
902 | port = serial->port[i]; | |
903 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
904 | if (!portdata) { | |
7384a922 | 905 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 906 | "sierra_port_private (%d) failed!\n", |
7384a922 | 907 | __func__, i); |
17c23274 | 908 | return -ENOMEM; |
033a3fb9 | 909 | } |
17c23274 | 910 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
911 | init_usb_anchor(&portdata->active); |
912 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
913 | ifnum = i; |
914 | /* Assume low memory requirements */ | |
915 | portdata->num_out_urbs = N_OUT_URB; | |
916 | portdata->num_in_urbs = N_IN_URB; | |
917 | ||
918 | /* Determine actual memory requirements */ | |
919 | if (serial->num_ports == 1) { | |
920 | /* Get interface number for composite device */ | |
921 | ifnum = sierra_calc_interface(serial); | |
922 | himemoryp = | |
923 | (struct sierra_iface_info *)&typeB_interface_list; | |
924 | if (is_himemory(ifnum, himemoryp)) { | |
925 | portdata->num_out_urbs = N_OUT_URB_HM; | |
926 | portdata->num_in_urbs = N_IN_URB_HM; | |
927 | } | |
928 | } | |
929 | else { | |
930 | himemoryp = | |
931 | (struct sierra_iface_info *)&typeA_interface_list; | |
932 | if (is_himemory(i, himemoryp)) { | |
933 | portdata->num_out_urbs = N_OUT_URB_HM; | |
934 | portdata->num_in_urbs = N_IN_URB_HM; | |
935 | } | |
936 | } | |
937 | dev_dbg(&serial->dev->dev, | |
938 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
939 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 940 | /* Set the port private data pointer */ |
033a3fb9 | 941 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
942 | } |
943 | ||
17c23274 | 944 | return 0; |
033a3fb9 KL |
945 | } |
946 | ||
7bae0a07 | 947 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 948 | { |
b9a44bc1 | 949 | int i; |
033a3fb9 KL |
950 | struct usb_serial_port *port; |
951 | struct sierra_port_private *portdata; | |
952 | ||
033a3fb9 KL |
953 | for (i = 0; i < serial->num_ports; ++i) { |
954 | port = serial->port[i]; | |
f094e4f3 GKH |
955 | if (!port) |
956 | continue; | |
033a3fb9 | 957 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
958 | if (!portdata) |
959 | continue; | |
9e85c5f6 | 960 | kfree(portdata); |
033a3fb9 KL |
961 | } |
962 | } | |
963 | ||
cd604513 | 964 | #ifdef CONFIG_PM |
e6929a90 ON |
965 | static void stop_read_write_urbs(struct usb_serial *serial) |
966 | { | |
b64dc0a5 | 967 | int i; |
e6929a90 ON |
968 | struct usb_serial_port *port; |
969 | struct sierra_port_private *portdata; | |
970 | ||
971 | /* Stop reading/writing urbs */ | |
972 | for (i = 0; i < serial->num_ports; ++i) { | |
973 | port = serial->port[i]; | |
974 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 975 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
976 | usb_kill_anchored_urbs(&portdata->active); |
977 | } | |
978 | } | |
979 | ||
980 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
981 | { | |
982 | struct sierra_intf_private *intfdata; | |
983 | int b; | |
984 | ||
5b1b0b81 | 985 | if (PMSG_IS_AUTO(message)) { |
e6929a90 ON |
986 | intfdata = serial->private; |
987 | spin_lock_irq(&intfdata->susp_lock); | |
988 | b = intfdata->in_flight; | |
989 | ||
990 | if (b) { | |
991 | spin_unlock_irq(&intfdata->susp_lock); | |
992 | return -EBUSY; | |
993 | } else { | |
994 | intfdata->suspended = 1; | |
995 | spin_unlock_irq(&intfdata->susp_lock); | |
996 | } | |
997 | } | |
998 | stop_read_write_urbs(serial); | |
999 | ||
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | static int sierra_resume(struct usb_serial *serial) | |
1004 | { | |
1005 | struct usb_serial_port *port; | |
1006 | struct sierra_intf_private *intfdata = serial->private; | |
1007 | struct sierra_port_private *portdata; | |
1008 | struct urb *urb; | |
1009 | int ec = 0; | |
1010 | int i, err; | |
1011 | ||
1012 | spin_lock_irq(&intfdata->susp_lock); | |
1013 | for (i = 0; i < serial->num_ports; i++) { | |
1014 | port = serial->port[i]; | |
1015 | portdata = usb_get_serial_port_data(port); | |
1016 | ||
1017 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1018 | usb_anchor_urb(urb, &portdata->active); | |
1019 | intfdata->in_flight++; | |
1020 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1021 | if (err < 0) { | |
1022 | intfdata->in_flight--; | |
1023 | usb_unanchor_urb(urb); | |
1024 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1025 | break; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | if (portdata->opened) { | |
1030 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1031 | if (err) | |
1032 | ec++; | |
1033 | } | |
1034 | } | |
1035 | intfdata->suspended = 0; | |
1036 | spin_unlock_irq(&intfdata->susp_lock); | |
1037 | ||
1038 | return ec ? -EIO : 0; | |
1039 | } | |
7650cd96 | 1040 | |
cd604513 AM |
1041 | #else |
1042 | #define sierra_suspend NULL | |
1043 | #define sierra_resume NULL | |
1044 | #endif | |
e6929a90 | 1045 | |
228426ed | 1046 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1047 | .driver = { |
1048 | .owner = THIS_MODULE, | |
4e0fee82 | 1049 | .name = "sierra", |
964ee1de | 1050 | }, |
228426ed KL |
1051 | .description = "Sierra USB modem", |
1052 | .id_table = id_table, | |
228426ed KL |
1053 | .calc_num_ports = sierra_calc_num_ports, |
1054 | .probe = sierra_probe, | |
964ee1de GKH |
1055 | .open = sierra_open, |
1056 | .close = sierra_close, | |
335f8514 | 1057 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1058 | .write = sierra_write, |
1059 | .write_room = sierra_write_room, | |
964ee1de | 1060 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1061 | .tiocmget = sierra_tiocmget, |
1062 | .tiocmset = sierra_tiocmset, | |
1063 | .attach = sierra_startup, | |
7bae0a07 | 1064 | .release = sierra_release, |
e6929a90 ON |
1065 | .suspend = sierra_suspend, |
1066 | .resume = sierra_resume, | |
964ee1de GKH |
1067 | .read_int_callback = sierra_instat_callback, |
1068 | }; | |
1069 | ||
d860322f AS |
1070 | static struct usb_serial_driver * const serial_drivers[] = { |
1071 | &sierra_device, NULL | |
1072 | }; | |
1073 | ||
68e24113 | 1074 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1075 | |
033a3fb9 KL |
1076 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1077 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1078 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1079 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1080 | |
4e0fee82 | 1081 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed | 1082 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |