aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/usb
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2013-10-07 10:43:04 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-10-07 10:43:04 -0400
commita56e74f546b64be93731e42d83baf5b538cc1b11 (patch)
tree18f6dee45d801e57ac9db2a31664b0d5c0762c50 /drivers/net/usb
parentd08e2e09042bd3f7ef66a35cb4bb92794ab26bb2 (diff)
parente4e7f10bfc4069925e99cc4b428c3434e30b6c3f (diff)
Merge branch 'arm-aesbs' of git://git.linaro.org/people/ardbiesheuvel/linux-arm into devel-stable
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/cdc_ether.c115
1 files changed, 42 insertions, 73 deletions
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 03ad4dc293aa..2023f3ea891e 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -33,7 +33,7 @@
33#include <linux/usb/usbnet.h> 33#include <linux/usb/usbnet.h>
34 34
35 35
36#if defined(CONFIG_USB_NET_RNDIS_HOST) || defined(CONFIG_USB_NET_RNDIS_HOST_MODULE) 36#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
37 37
38static int is_rndis(struct usb_interface_descriptor *desc) 38static int is_rndis(struct usb_interface_descriptor *desc)
39{ 39{
@@ -69,8 +69,7 @@ static const u8 mbm_guid[16] = {
69 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a, 69 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
70}; 70};
71 71
72/* 72/* probes control interface, claims data interface, collects the bulk
73 * probes control interface, claims data interface, collects the bulk
74 * endpoints, activates data interface (if needed), maybe sets MTU. 73 * endpoints, activates data interface (if needed), maybe sets MTU.
75 * all pure cdc, except for certain firmware workarounds, and knowing 74 * all pure cdc, except for certain firmware workarounds, and knowing
76 * that rndis uses one different rule. 75 * that rndis uses one different rule.
@@ -88,7 +87,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
88 struct usb_cdc_mdlm_desc *desc = NULL; 87 struct usb_cdc_mdlm_desc *desc = NULL;
89 struct usb_cdc_mdlm_detail_desc *detail = NULL; 88 struct usb_cdc_mdlm_detail_desc *detail = NULL;
90 89
91 if (sizeof dev->data < sizeof *info) 90 if (sizeof(dev->data) < sizeof(*info))
92 return -EDOM; 91 return -EDOM;
93 92
94 /* expect strict spec conformance for the descriptors, but 93 /* expect strict spec conformance for the descriptors, but
@@ -126,10 +125,10 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
126 is_activesync(&intf->cur_altsetting->desc) || 125 is_activesync(&intf->cur_altsetting->desc) ||
127 is_wireless_rndis(&intf->cur_altsetting->desc)); 126 is_wireless_rndis(&intf->cur_altsetting->desc));
128 127
129 memset(info, 0, sizeof *info); 128 memset(info, 0, sizeof(*info));
130 info->control = intf; 129 info->control = intf;
131 while (len > 3) { 130 while (len > 3) {
132 if (buf [1] != USB_DT_CS_INTERFACE) 131 if (buf[1] != USB_DT_CS_INTERFACE)
133 goto next_desc; 132 goto next_desc;
134 133
135 /* use bDescriptorSubType to identify the CDC descriptors. 134 /* use bDescriptorSubType to identify the CDC descriptors.
@@ -139,14 +138,14 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
139 * in favor of a complicated OID-based RPC scheme doing what 138 * in favor of a complicated OID-based RPC scheme doing what
140 * CDC Ethernet achieves with a simple descriptor. 139 * CDC Ethernet achieves with a simple descriptor.
141 */ 140 */
142 switch (buf [2]) { 141 switch (buf[2]) {
143 case USB_CDC_HEADER_TYPE: 142 case USB_CDC_HEADER_TYPE:
144 if (info->header) { 143 if (info->header) {
145 dev_dbg(&intf->dev, "extra CDC header\n"); 144 dev_dbg(&intf->dev, "extra CDC header\n");
146 goto bad_desc; 145 goto bad_desc;
147 } 146 }
148 info->header = (void *) buf; 147 info->header = (void *) buf;
149 if (info->header->bLength != sizeof *info->header) { 148 if (info->header->bLength != sizeof(*info->header)) {
150 dev_dbg(&intf->dev, "CDC header len %u\n", 149 dev_dbg(&intf->dev, "CDC header len %u\n",
151 info->header->bLength); 150 info->header->bLength);
152 goto bad_desc; 151 goto bad_desc;
@@ -175,7 +174,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
175 goto bad_desc; 174 goto bad_desc;
176 } 175 }
177 info->u = (void *) buf; 176 info->u = (void *) buf;
178 if (info->u->bLength != sizeof *info->u) { 177 if (info->u->bLength != sizeof(*info->u)) {
179 dev_dbg(&intf->dev, "CDC union len %u\n", 178 dev_dbg(&intf->dev, "CDC union len %u\n",
180 info->u->bLength); 179 info->u->bLength);
181 goto bad_desc; 180 goto bad_desc;
@@ -233,7 +232,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
233 goto bad_desc; 232 goto bad_desc;
234 } 233 }
235 info->ether = (void *) buf; 234 info->ether = (void *) buf;
236 if (info->ether->bLength != sizeof *info->ether) { 235 if (info->ether->bLength != sizeof(*info->ether)) {
237 dev_dbg(&intf->dev, "CDC ether len %u\n", 236 dev_dbg(&intf->dev, "CDC ether len %u\n",
238 info->ether->bLength); 237 info->ether->bLength);
239 goto bad_desc; 238 goto bad_desc;
@@ -274,8 +273,8 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
274 break; 273 break;
275 } 274 }
276next_desc: 275next_desc:
277 len -= buf [0]; /* bLength */ 276 len -= buf[0]; /* bLength */
278 buf += buf [0]; 277 buf += buf[0];
279 } 278 }
280 279
281 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 280 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
@@ -379,9 +378,7 @@ void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
379} 378}
380EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 379EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
381 380
382/*------------------------------------------------------------------------- 381/* Communications Device Class, Ethernet Control model
383 *
384 * Communications Device Class, Ethernet Control model
385 * 382 *
386 * Takes two interfaces. The DATA interface is inactive till an altsetting 383 * Takes two interfaces. The DATA interface is inactive till an altsetting
387 * is selected. Configuration data includes class descriptors. There's 384 * is selected. Configuration data includes class descriptors. There's
@@ -389,8 +386,7 @@ EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
389 * 386 *
390 * This should interop with whatever the 2.4 "CDCEther.c" driver 387 * This should interop with whatever the 2.4 "CDCEther.c" driver
391 * (by Brad Hards) talked with, with more functionality. 388 * (by Brad Hards) talked with, with more functionality.
392 * 389 */
393 *-------------------------------------------------------------------------*/
394 390
395static void dumpspeed(struct usbnet *dev, __le32 *speeds) 391static void dumpspeed(struct usbnet *dev, __le32 *speeds)
396{ 392{
@@ -404,7 +400,7 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
404{ 400{
405 struct usb_cdc_notification *event; 401 struct usb_cdc_notification *event;
406 402
407 if (urb->actual_length < sizeof *event) 403 if (urb->actual_length < sizeof(*event))
408 return; 404 return;
409 405
410 /* SPEED_CHANGE can get split into two 8-byte packets */ 406 /* SPEED_CHANGE can get split into two 8-byte packets */
@@ -423,7 +419,7 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
423 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 419 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
424 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 420 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
425 urb->actual_length); 421 urb->actual_length);
426 if (urb->actual_length != (sizeof *event + 8)) 422 if (urb->actual_length != (sizeof(*event) + 8))
427 set_bit(EVENT_STS_SPLIT, &dev->flags); 423 set_bit(EVENT_STS_SPLIT, &dev->flags);
428 else 424 else
429 dumpspeed(dev, (__le32 *) &event[1]); 425 dumpspeed(dev, (__le32 *) &event[1]);
@@ -469,7 +465,6 @@ EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
469static const struct driver_info cdc_info = { 465static const struct driver_info cdc_info = {
470 .description = "CDC Ethernet Device", 466 .description = "CDC Ethernet Device",
471 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 467 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
472 // .check_connect = cdc_check_connect,
473 .bind = usbnet_cdc_bind, 468 .bind = usbnet_cdc_bind,
474 .unbind = usbnet_cdc_unbind, 469 .unbind = usbnet_cdc_unbind,
475 .status = usbnet_cdc_status, 470 .status = usbnet_cdc_status,
@@ -493,9 +488,8 @@ static const struct driver_info wwan_info = {
493#define DELL_VENDOR_ID 0x413C 488#define DELL_VENDOR_ID 0x413C
494#define REALTEK_VENDOR_ID 0x0bda 489#define REALTEK_VENDOR_ID 0x0bda
495 490
496static const struct usb_device_id products [] = { 491static const struct usb_device_id products[] = {
497/* 492/* BLACKLIST !!
498 * BLACKLIST !!
499 * 493 *
500 * First blacklist any products that are egregiously nonconformant 494 * First blacklist any products that are egregiously nonconformant
501 * with the CDC Ethernet specs. Minor braindamage we cope with; when 495 * with the CDC Ethernet specs. Minor braindamage we cope with; when
@@ -542,7 +536,7 @@ static const struct usb_device_id products [] = {
542 .driver_info = 0, 536 .driver_info = 0,
543}, { 537}, {
544 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 538 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
545 | USB_DEVICE_ID_MATCH_DEVICE, 539 | USB_DEVICE_ID_MATCH_DEVICE,
546 .idVendor = 0x04DD, 540 .idVendor = 0x04DD,
547 .idProduct = 0x8007, /* C-700 */ 541 .idProduct = 0x8007, /* C-700 */
548 ZAURUS_MASTER_INTERFACE, 542 ZAURUS_MASTER_INTERFACE,
@@ -659,8 +653,7 @@ static const struct usb_device_id products [] = {
659 .driver_info = 0, 653 .driver_info = 0,
660}, 654},
661 655
662/* 656/* WHITELIST!!!
663 * WHITELIST!!!
664 * 657 *
665 * CDC Ether uses two interfaces, not necessarily consecutive. 658 * CDC Ether uses two interfaces, not necessarily consecutive.
666 * We match the main interface, ignoring the optional device 659 * We match the main interface, ignoring the optional device
@@ -672,60 +665,40 @@ static const struct usb_device_id products [] = {
672 */ 665 */
673{ 666{
674 /* ZTE (Vodafone) K3805-Z */ 667 /* ZTE (Vodafone) K3805-Z */
675 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 668 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
676 | USB_DEVICE_ID_MATCH_PRODUCT 669 USB_CDC_SUBCLASS_ETHERNET,
677 | USB_DEVICE_ID_MATCH_INT_INFO, 670 USB_CDC_PROTO_NONE),
678 .idVendor = ZTE_VENDOR_ID,
679 .idProduct = 0x1003,
680 .bInterfaceClass = USB_CLASS_COMM,
681 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
682 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
683 .driver_info = (unsigned long)&wwan_info, 671 .driver_info = (unsigned long)&wwan_info,
684}, { 672}, {
685 /* ZTE (Vodafone) K3806-Z */ 673 /* ZTE (Vodafone) K3806-Z */
686 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 674 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
687 | USB_DEVICE_ID_MATCH_PRODUCT 675 USB_CDC_SUBCLASS_ETHERNET,
688 | USB_DEVICE_ID_MATCH_INT_INFO, 676 USB_CDC_PROTO_NONE),
689 .idVendor = ZTE_VENDOR_ID,
690 .idProduct = 0x1015,
691 .bInterfaceClass = USB_CLASS_COMM,
692 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
693 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
694 .driver_info = (unsigned long)&wwan_info, 677 .driver_info = (unsigned long)&wwan_info,
695}, { 678}, {
696 /* ZTE (Vodafone) K4510-Z */ 679 /* ZTE (Vodafone) K4510-Z */
697 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 680 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
698 | USB_DEVICE_ID_MATCH_PRODUCT 681 USB_CDC_SUBCLASS_ETHERNET,
699 | USB_DEVICE_ID_MATCH_INT_INFO, 682 USB_CDC_PROTO_NONE),
700 .idVendor = ZTE_VENDOR_ID,
701 .idProduct = 0x1173,
702 .bInterfaceClass = USB_CLASS_COMM,
703 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
704 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
705 .driver_info = (unsigned long)&wwan_info, 683 .driver_info = (unsigned long)&wwan_info,
706}, { 684}, {
707 /* ZTE (Vodafone) K3770-Z */ 685 /* ZTE (Vodafone) K3770-Z */
708 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 686 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
709 | USB_DEVICE_ID_MATCH_PRODUCT 687 USB_CDC_SUBCLASS_ETHERNET,
710 | USB_DEVICE_ID_MATCH_INT_INFO, 688 USB_CDC_PROTO_NONE),
711 .idVendor = ZTE_VENDOR_ID,
712 .idProduct = 0x1177,
713 .bInterfaceClass = USB_CLASS_COMM,
714 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
715 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
716 .driver_info = (unsigned long)&wwan_info, 689 .driver_info = (unsigned long)&wwan_info,
717}, { 690}, {
718 /* ZTE (Vodafone) K3772-Z */ 691 /* ZTE (Vodafone) K3772-Z */
719 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 692 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
720 | USB_DEVICE_ID_MATCH_PRODUCT 693 USB_CDC_SUBCLASS_ETHERNET,
721 | USB_DEVICE_ID_MATCH_INT_INFO, 694 USB_CDC_PROTO_NONE),
722 .idVendor = ZTE_VENDOR_ID,
723 .idProduct = 0x1181,
724 .bInterfaceClass = USB_CLASS_COMM,
725 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
726 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
727 .driver_info = (unsigned long)&wwan_info, 695 .driver_info = (unsigned long)&wwan_info,
728}, { 696}, {
697 /* Telit modules */
698 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
699 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
700 .driver_info = (kernel_ulong_t) &wwan_info,
701}, {
729 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 702 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
730 USB_CDC_PROTO_NONE), 703 USB_CDC_PROTO_NONE),
731 .driver_info = (unsigned long) &cdc_info, 704 .driver_info = (unsigned long) &cdc_info,
@@ -736,15 +709,11 @@ static const struct usb_device_id products [] = {
736 709
737}, { 710}, {
738 /* Various Huawei modems with a network port like the UMG1831 */ 711 /* Various Huawei modems with a network port like the UMG1831 */
739 .match_flags = USB_DEVICE_ID_MATCH_VENDOR 712 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
740 | USB_DEVICE_ID_MATCH_INT_INFO, 713 USB_CDC_SUBCLASS_ETHERNET, 255),
741 .idVendor = HUAWEI_VENDOR_ID,
742 .bInterfaceClass = USB_CLASS_COMM,
743 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
744 .bInterfaceProtocol = 255,
745 .driver_info = (unsigned long)&wwan_info, 714 .driver_info = (unsigned long)&wwan_info,
746}, 715},
747 { }, // END 716 { }, /* END */
748}; 717};
749MODULE_DEVICE_TABLE(usb, products); 718MODULE_DEVICE_TABLE(usb, products);
750 719