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-rw-r--r--drivers/block/ub.c20
-rw-r--r--drivers/isdn/hisax/st5481_usb.c9
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c1
-rw-r--r--drivers/usb/class/cdc-wdm.c2
-rw-r--r--drivers/usb/core/devio.c2
-rw-r--r--drivers/usb/core/hcd.c26
-rw-r--r--drivers/usb/core/hcd.h14
-rw-r--r--drivers/usb/core/message.c58
-rw-r--r--drivers/usb/core/usb.c2
-rw-r--r--drivers/usb/gadget/u_ether.c8
-rw-r--r--drivers/usb/host/whci/asl.c15
-rw-r--r--drivers/usb/host/whci/hcd.c23
-rw-r--r--drivers/usb/host/whci/pzl.c16
-rw-r--r--drivers/usb/host/whci/qset.c24
-rw-r--r--drivers/usb/host/whci/whcd.h1
-rw-r--r--drivers/usb/host/whci/whci-hc.h1
-rw-r--r--drivers/usb/musb/cppi_dma.c23
-rw-r--r--drivers/usb/musb/musb_core.c12
-rw-r--r--drivers/usb/musb/musb_gadget.c33
-rw-r--r--drivers/usb/musb/musb_host.c406
-rw-r--r--drivers/usb/musb/musbhsdma.c66
-rw-r--r--drivers/usb/serial/ftdi_sio.c1
-rw-r--r--drivers/usb/serial/ftdi_sio.h7
-rw-r--r--drivers/usb/serial/moto_modem.c1
-rw-r--r--drivers/usb/serial/option.c5
-rw-r--r--drivers/usb/serial/qcserial.c21
-rw-r--r--drivers/usb/storage/Makefile3
-rw-r--r--drivers/usb/storage/transport.c4
-rw-r--r--drivers/usb/storage/unusual_devs.h14
-rw-r--r--drivers/usb/wusbcore/devconnect.c21
-rw-r--r--drivers/usb/wusbcore/wusbhc.c32
-rw-r--r--include/linux/usb.h9
32 files changed, 532 insertions, 348 deletions
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 69b7f8e77596..689cd27ac890 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1025,6 +1025,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1025{ 1025{
1026 struct urb *urb = &sc->work_urb; 1026 struct urb *urb = &sc->work_urb;
1027 struct bulk_cs_wrap *bcs; 1027 struct bulk_cs_wrap *bcs;
1028 int endp;
1028 int len; 1029 int len;
1029 int rc; 1030 int rc;
1030 1031
@@ -1033,6 +1034,10 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1033 return; 1034 return;
1034 } 1035 }
1035 1036
1037 endp = usb_pipeendpoint(sc->last_pipe);
1038 if (usb_pipein(sc->last_pipe))
1039 endp |= USB_DIR_IN;
1040
1036 if (cmd->state == UB_CMDST_CLEAR) { 1041 if (cmd->state == UB_CMDST_CLEAR) {
1037 if (urb->status == -EPIPE) { 1042 if (urb->status == -EPIPE) {
1038 /* 1043 /*
@@ -1048,9 +1053,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1048 * We ignore the result for the halt clear. 1053 * We ignore the result for the halt clear.
1049 */ 1054 */
1050 1055
1051 /* reset the endpoint toggle */ 1056 usb_reset_endpoint(sc->dev, endp);
1052 usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
1053 usb_pipeout(sc->last_pipe), 0);
1054 1057
1055 ub_state_sense(sc, cmd); 1058 ub_state_sense(sc, cmd);
1056 1059
@@ -1065,9 +1068,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1065 * We ignore the result for the halt clear. 1068 * We ignore the result for the halt clear.
1066 */ 1069 */
1067 1070
1068 /* reset the endpoint toggle */ 1071 usb_reset_endpoint(sc->dev, endp);
1069 usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
1070 usb_pipeout(sc->last_pipe), 0);
1071 1072
1072 ub_state_stat(sc, cmd); 1073 ub_state_stat(sc, cmd);
1073 1074
@@ -1082,9 +1083,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1082 * We ignore the result for the halt clear. 1083 * We ignore the result for the halt clear.
1083 */ 1084 */
1084 1085
1085 /* reset the endpoint toggle */ 1086 usb_reset_endpoint(sc->dev, endp);
1086 usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
1087 usb_pipeout(sc->last_pipe), 0);
1088 1087
1089 ub_state_stat_counted(sc, cmd); 1088 ub_state_stat_counted(sc, cmd);
1090 1089
@@ -2119,8 +2118,7 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
2119 del_timer_sync(&timer); 2118 del_timer_sync(&timer);
2120 usb_kill_urb(&sc->work_urb); 2119 usb_kill_urb(&sc->work_urb);
2121 2120
2122 /* reset the endpoint toggle */ 2121 usb_reset_endpoint(sc->dev, endp);
2123 usb_settoggle(sc->dev, endp, usb_pipeout(sc->last_pipe), 0);
2124 2122
2125 return 0; 2123 return 0;
2126} 2124}
diff --git a/drivers/isdn/hisax/st5481_usb.c b/drivers/isdn/hisax/st5481_usb.c
index ec3c0e507669..2b3a055059ea 100644
--- a/drivers/isdn/hisax/st5481_usb.c
+++ b/drivers/isdn/hisax/st5481_usb.c
@@ -149,14 +149,7 @@ static void usb_ctrl_complete(struct urb *urb)
149 if (ctrl_msg->dr.bRequest == USB_REQ_CLEAR_FEATURE) { 149 if (ctrl_msg->dr.bRequest == USB_REQ_CLEAR_FEATURE) {
150 /* Special case handling for pipe reset */ 150 /* Special case handling for pipe reset */
151 le16_to_cpus(&ctrl_msg->dr.wIndex); 151 le16_to_cpus(&ctrl_msg->dr.wIndex);
152 152 usb_reset_endpoint(adapter->usb_dev, ctrl_msg->dr.wIndex);
153 /* toggle is reset on clear */
154 usb_settoggle(adapter->usb_dev,
155 ctrl_msg->dr.wIndex & ~USB_DIR_IN,
156 (ctrl_msg->dr.wIndex & USB_DIR_IN) == 0,
157 0);
158
159
160 } 153 }
161 154
162 if (ctrl_msg->complete) 155 if (ctrl_msg->complete)
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index d9d974a8f52a..add3395d3248 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -1461,7 +1461,6 @@ static int pvr2_upload_firmware1(struct pvr2_hdw *hdw)
1461 return ret; 1461 return ret;
1462 } 1462 }
1463 1463
1464 usb_settoggle(hdw->usb_dev, 0 & 0xf, !(0 & USB_DIR_IN), 0);
1465 usb_clear_halt(hdw->usb_dev, usb_sndbulkpipe(hdw->usb_dev, 0 & 0x7f)); 1464 usb_clear_halt(hdw->usb_dev, usb_sndbulkpipe(hdw->usb_dev, 0 & 0x7f));
1466 1465
1467 pipe = usb_sndctrlpipe(hdw->usb_dev, 0); 1466 pipe = usb_sndctrlpipe(hdw->usb_dev, 0);
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 3771d6e6d0cc..34e6108e1d42 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -652,7 +652,7 @@ next_desc:
652 652
653 iface = &intf->altsetting[0]; 653 iface = &intf->altsetting[0];
654 ep = &iface->endpoint[0].desc; 654 ep = &iface->endpoint[0].desc;
655 if (!usb_endpoint_is_int_in(ep)) { 655 if (!ep || !usb_endpoint_is_int_in(ep)) {
656 rv = -EINVAL; 656 rv = -EINVAL;
657 goto err; 657 goto err;
658 } 658 }
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index df3c539f652a..308609039c73 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -841,7 +841,7 @@ static int proc_resetep(struct dev_state *ps, void __user *arg)
841 ret = checkintf(ps, ret); 841 ret = checkintf(ps, ret);
842 if (ret) 842 if (ret)
843 return ret; 843 return ret;
844 usb_settoggle(ps->dev, ep & 0xf, !(ep & USB_DIR_IN), 0); 844 usb_reset_endpoint(ps->dev, ep);
845 return 0; 845 return 0;
846} 846}
847 847
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 81fa8506825d..42b93da1085d 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1539,6 +1539,32 @@ void usb_hcd_disable_endpoint(struct usb_device *udev,
1539 hcd->driver->endpoint_disable(hcd, ep); 1539 hcd->driver->endpoint_disable(hcd, ep);
1540} 1540}
1541 1541
1542/**
1543 * usb_hcd_reset_endpoint - reset host endpoint state
1544 * @udev: USB device.
1545 * @ep: the endpoint to reset.
1546 *
1547 * Resets any host endpoint state such as the toggle bit, sequence
1548 * number and current window.
1549 */
1550void usb_hcd_reset_endpoint(struct usb_device *udev,
1551 struct usb_host_endpoint *ep)
1552{
1553 struct usb_hcd *hcd = bus_to_hcd(udev->bus);
1554
1555 if (hcd->driver->endpoint_reset)
1556 hcd->driver->endpoint_reset(hcd, ep);
1557 else {
1558 int epnum = usb_endpoint_num(&ep->desc);
1559 int is_out = usb_endpoint_dir_out(&ep->desc);
1560 int is_control = usb_endpoint_xfer_control(&ep->desc);
1561
1562 usb_settoggle(udev, epnum, is_out, 0);
1563 if (is_control)
1564 usb_settoggle(udev, epnum, !is_out, 0);
1565 }
1566}
1567
1542/* Protect against drivers that try to unlink URBs after the device 1568/* Protect against drivers that try to unlink URBs after the device
1543 * is gone, by waiting until all unlinks for @udev are finished. 1569 * is gone, by waiting until all unlinks for @udev are finished.
1544 * Since we don't currently track URBs by device, simply wait until 1570 * Since we don't currently track URBs by device, simply wait until
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index f750eb1ab595..e7d4479de41c 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -206,6 +206,11 @@ struct hc_driver {
206 void (*endpoint_disable)(struct usb_hcd *hcd, 206 void (*endpoint_disable)(struct usb_hcd *hcd,
207 struct usb_host_endpoint *ep); 207 struct usb_host_endpoint *ep);
208 208
209 /* (optional) reset any endpoint state such as sequence number
210 and current window */
211 void (*endpoint_reset)(struct usb_hcd *hcd,
212 struct usb_host_endpoint *ep);
213
209 /* root hub support */ 214 /* root hub support */
210 int (*hub_status_data) (struct usb_hcd *hcd, char *buf); 215 int (*hub_status_data) (struct usb_hcd *hcd, char *buf);
211 int (*hub_control) (struct usb_hcd *hcd, 216 int (*hub_control) (struct usb_hcd *hcd,
@@ -234,6 +239,8 @@ extern void usb_hcd_flush_endpoint(struct usb_device *udev,
234 struct usb_host_endpoint *ep); 239 struct usb_host_endpoint *ep);
235extern void usb_hcd_disable_endpoint(struct usb_device *udev, 240extern void usb_hcd_disable_endpoint(struct usb_device *udev,
236 struct usb_host_endpoint *ep); 241 struct usb_host_endpoint *ep);
242extern void usb_hcd_reset_endpoint(struct usb_device *udev,
243 struct usb_host_endpoint *ep);
237extern void usb_hcd_synchronize_unlinks(struct usb_device *udev); 244extern void usb_hcd_synchronize_unlinks(struct usb_device *udev);
238extern int usb_hcd_get_frame_number(struct usb_device *udev); 245extern int usb_hcd_get_frame_number(struct usb_device *udev);
239 246
@@ -279,6 +286,13 @@ extern irqreturn_t usb_hcd_irq(int irq, void *__hcd);
279extern void usb_hc_died(struct usb_hcd *hcd); 286extern void usb_hc_died(struct usb_hcd *hcd);
280extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd); 287extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
281 288
289/* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */
290#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1)
291#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep)))
292#define usb_settoggle(dev, ep, out, bit) \
293 ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \
294 ((bit) << (ep)))
295
282/* -------------------------------------------------------------------------- */ 296/* -------------------------------------------------------------------------- */
283 297
284/* Enumeration is only for the hub driver, or HCD virtual root hubs */ 298/* Enumeration is only for the hub driver, or HCD virtual root hubs */
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 30a0690f3683..b62628377654 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1002,8 +1002,7 @@ int usb_clear_halt(struct usb_device *dev, int pipe)
1002 * the copy in usb-storage, for as long as we need two copies. 1002 * the copy in usb-storage, for as long as we need two copies.
1003 */ 1003 */
1004 1004
1005 /* toggle was reset by the clear */ 1005 usb_reset_endpoint(dev, endp);
1006 usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0);
1007 1006
1008 return 0; 1007 return 0;
1009} 1008}
@@ -1076,6 +1075,30 @@ void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
1076} 1075}
1077 1076
1078/** 1077/**
1078 * usb_reset_endpoint - Reset an endpoint's state.
1079 * @dev: the device whose endpoint is to be reset
1080 * @epaddr: the endpoint's address. Endpoint number for output,
1081 * endpoint number + USB_DIR_IN for input
1082 *
1083 * Resets any host-side endpoint state such as the toggle bit,
1084 * sequence number or current window.
1085 */
1086void usb_reset_endpoint(struct usb_device *dev, unsigned int epaddr)
1087{
1088 unsigned int epnum = epaddr & USB_ENDPOINT_NUMBER_MASK;
1089 struct usb_host_endpoint *ep;
1090
1091 if (usb_endpoint_out(epaddr))
1092 ep = dev->ep_out[epnum];
1093 else
1094 ep = dev->ep_in[epnum];
1095 if (ep)
1096 usb_hcd_reset_endpoint(dev, ep);
1097}
1098EXPORT_SYMBOL_GPL(usb_reset_endpoint);
1099
1100
1101/**
1079 * usb_disable_interface -- Disable all endpoints for an interface 1102 * usb_disable_interface -- Disable all endpoints for an interface
1080 * @dev: the device whose interface is being disabled 1103 * @dev: the device whose interface is being disabled
1081 * @intf: pointer to the interface descriptor 1104 * @intf: pointer to the interface descriptor
@@ -1117,7 +1140,6 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
1117 usb_disable_endpoint(dev, i, true); 1140 usb_disable_endpoint(dev, i, true);
1118 usb_disable_endpoint(dev, i + USB_DIR_IN, true); 1141 usb_disable_endpoint(dev, i + USB_DIR_IN, true);
1119 } 1142 }
1120 dev->toggle[0] = dev->toggle[1] = 0;
1121 1143
1122 /* getting rid of interfaces will disconnect 1144 /* getting rid of interfaces will disconnect
1123 * any drivers bound to them (a key side effect) 1145 * any drivers bound to them (a key side effect)
@@ -1154,28 +1176,24 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
1154 * usb_enable_endpoint - Enable an endpoint for USB communications 1176 * usb_enable_endpoint - Enable an endpoint for USB communications
1155 * @dev: the device whose interface is being enabled 1177 * @dev: the device whose interface is being enabled
1156 * @ep: the endpoint 1178 * @ep: the endpoint
1157 * @reset_toggle: flag to set the endpoint's toggle back to 0 1179 * @reset_ep: flag to reset the endpoint state
1158 * 1180 *
1159 * Resets the endpoint toggle if asked, and sets dev->ep_{in,out} pointers. 1181 * Resets the endpoint state if asked, and sets dev->ep_{in,out} pointers.
1160 * For control endpoints, both the input and output sides are handled. 1182 * For control endpoints, both the input and output sides are handled.
1161 */ 1183 */
1162void usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep, 1184void usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep,
1163 bool reset_toggle) 1185 bool reset_ep)
1164{ 1186{
1165 int epnum = usb_endpoint_num(&ep->desc); 1187 int epnum = usb_endpoint_num(&ep->desc);
1166 int is_out = usb_endpoint_dir_out(&ep->desc); 1188 int is_out = usb_endpoint_dir_out(&ep->desc);
1167 int is_control = usb_endpoint_xfer_control(&ep->desc); 1189 int is_control = usb_endpoint_xfer_control(&ep->desc);
1168 1190
1169 if (is_out || is_control) { 1191 if (reset_ep)
1170 if (reset_toggle) 1192 usb_hcd_reset_endpoint(dev, ep);
1171 usb_settoggle(dev, epnum, 1, 0); 1193 if (is_out || is_control)
1172 dev->ep_out[epnum] = ep; 1194 dev->ep_out[epnum] = ep;
1173 } 1195 if (!is_out || is_control)
1174 if (!is_out || is_control) {
1175 if (reset_toggle)
1176 usb_settoggle(dev, epnum, 0, 0);
1177 dev->ep_in[epnum] = ep; 1196 dev->ep_in[epnum] = ep;
1178 }
1179 ep->enabled = 1; 1197 ep->enabled = 1;
1180} 1198}
1181 1199
@@ -1183,18 +1201,18 @@ void usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep,
1183 * usb_enable_interface - Enable all the endpoints for an interface 1201 * usb_enable_interface - Enable all the endpoints for an interface
1184 * @dev: the device whose interface is being enabled 1202 * @dev: the device whose interface is being enabled
1185 * @intf: pointer to the interface descriptor 1203 * @intf: pointer to the interface descriptor
1186 * @reset_toggles: flag to set the endpoints' toggles back to 0 1204 * @reset_eps: flag to reset the endpoints' state
1187 * 1205 *
1188 * Enables all the endpoints for the interface's current altsetting. 1206 * Enables all the endpoints for the interface's current altsetting.
1189 */ 1207 */
1190void usb_enable_interface(struct usb_device *dev, 1208void usb_enable_interface(struct usb_device *dev,
1191 struct usb_interface *intf, bool reset_toggles) 1209 struct usb_interface *intf, bool reset_eps)
1192{ 1210{
1193 struct usb_host_interface *alt = intf->cur_altsetting; 1211 struct usb_host_interface *alt = intf->cur_altsetting;
1194 int i; 1212 int i;
1195 1213
1196 for (i = 0; i < alt->desc.bNumEndpoints; ++i) 1214 for (i = 0; i < alt->desc.bNumEndpoints; ++i)
1197 usb_enable_endpoint(dev, &alt->endpoint[i], reset_toggles); 1215 usb_enable_endpoint(dev, &alt->endpoint[i], reset_eps);
1198} 1216}
1199 1217
1200/** 1218/**
@@ -1335,7 +1353,7 @@ EXPORT_SYMBOL_GPL(usb_set_interface);
1335 * This issues a standard SET_CONFIGURATION request to the device using 1353 * This issues a standard SET_CONFIGURATION request to the device using
1336 * the current configuration. The effect is to reset most USB-related 1354 * the current configuration. The effect is to reset most USB-related
1337 * state in the device, including interface altsettings (reset to zero), 1355 * state in the device, including interface altsettings (reset to zero),
1338 * endpoint halts (cleared), and data toggle (only for bulk and interrupt 1356 * endpoint halts (cleared), and endpoint state (only for bulk and interrupt
1339 * endpoints). Other usbcore state is unchanged, including bindings of 1357 * endpoints). Other usbcore state is unchanged, including bindings of
1340 * usb device drivers to interfaces. 1358 * usb device drivers to interfaces.
1341 * 1359 *
@@ -1343,7 +1361,7 @@ EXPORT_SYMBOL_GPL(usb_set_interface);
1343 * (multi-interface) devices. Instead, the driver for each interface may 1361 * (multi-interface) devices. Instead, the driver for each interface may
1344 * use usb_set_interface() on the interfaces it claims. Be careful though; 1362 * use usb_set_interface() on the interfaces it claims. Be careful though;
1345 * some devices don't support the SET_INTERFACE request, and others won't 1363 * some devices don't support the SET_INTERFACE request, and others won't
1346 * reset all the interface state (notably data toggles). Resetting the whole 1364 * reset all the interface state (notably endpoint state). Resetting the whole
1347 * configuration would affect other drivers' interfaces. 1365 * configuration would affect other drivers' interfaces.
1348 * 1366 *
1349 * The caller must own the device lock. 1367 * The caller must own the device lock.
@@ -1376,8 +1394,6 @@ int usb_reset_configuration(struct usb_device *dev)
1376 if (retval < 0) 1394 if (retval < 0)
1377 return retval; 1395 return retval;
1378 1396
1379 dev->toggle[0] = dev->toggle[1] = 0;
1380
1381 /* re-init hc/hcd interface/endpoint state */ 1397 /* re-init hc/hcd interface/endpoint state */
1382 for (i = 0; i < config->desc.bNumInterfaces; i++) { 1398 for (i = 0; i < config->desc.bNumInterfaces; i++) {
1383 struct usb_interface *intf = config->interface[i]; 1399 struct usb_interface *intf = config->interface[i];
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index dcfc072630c1..7eee400d3e32 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -362,7 +362,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
362 dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE; 362 dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
363 dev->ep0.desc.bDescriptorType = USB_DT_ENDPOINT; 363 dev->ep0.desc.bDescriptorType = USB_DT_ENDPOINT;
364 /* ep0 maxpacket comes later, from device descriptor */ 364 /* ep0 maxpacket comes later, from device descriptor */
365 usb_enable_endpoint(dev, &dev->ep0, true); 365 usb_enable_endpoint(dev, &dev->ep0, false);
366 dev->can_submit = 1; 366 dev->can_submit = 1;
367 367
368 /* Save readable and stable topology id, distinguishing devices 368 /* Save readable and stable topology id, distinguishing devices
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 96d65ca06ecd..4007770f7ed2 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -175,12 +175,6 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
175 strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info); 175 strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info);
176} 176}
177 177
178static u32 eth_get_link(struct net_device *net)
179{
180 struct eth_dev *dev = netdev_priv(net);
181 return dev->gadget->speed != USB_SPEED_UNKNOWN;
182}
183
184/* REVISIT can also support: 178/* REVISIT can also support:
185 * - WOL (by tracking suspends and issuing remote wakeup) 179 * - WOL (by tracking suspends and issuing remote wakeup)
186 * - msglevel (implies updated messaging) 180 * - msglevel (implies updated messaging)
@@ -189,7 +183,7 @@ static u32 eth_get_link(struct net_device *net)
189 183
190static struct ethtool_ops ops = { 184static struct ethtool_ops ops = {
191 .get_drvinfo = eth_get_drvinfo, 185 .get_drvinfo = eth_get_drvinfo,
192 .get_link = eth_get_link 186 .get_link = ethtool_op_get_link,
193}; 187};
194 188
195static void defer_kevent(struct eth_dev *dev, int flag) 189static void defer_kevent(struct eth_dev *dev, int flag)
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c
index 958751ccea43..c2050785a819 100644
--- a/drivers/usb/host/whci/asl.c
+++ b/drivers/usb/host/whci/asl.c
@@ -122,7 +122,8 @@ static uint32_t process_qset(struct whc *whc, struct whc_qset *qset)
122 process_inactive_qtd(whc, qset, td); 122 process_inactive_qtd(whc, qset, td);
123 } 123 }
124 124
125 update |= qset_add_qtds(whc, qset); 125 if (!qset->remove)
126 update |= qset_add_qtds(whc, qset);
126 127
127done: 128done:
128 /* 129 /*
@@ -254,23 +255,29 @@ int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags)
254 255
255 spin_lock_irqsave(&whc->lock, flags); 256 spin_lock_irqsave(&whc->lock, flags);
256 257
258 err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
259 if (err < 0) {
260 spin_unlock_irqrestore(&whc->lock, flags);
261 return err;
262 }
263
257 qset = get_qset(whc, urb, GFP_ATOMIC); 264 qset = get_qset(whc, urb, GFP_ATOMIC);
258 if (qset == NULL) 265 if (qset == NULL)
259 err = -ENOMEM; 266 err = -ENOMEM;
260 else 267 else
261 err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); 268 err = qset_add_urb(whc, qset, urb, GFP_ATOMIC);
262 if (!err) { 269 if (!err) {
263 usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
264 if (!qset->in_sw_list) 270 if (!qset->in_sw_list)
265 asl_qset_insert_begin(whc, qset); 271 asl_qset_insert_begin(whc, qset);
266 } 272 } else
273 usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb);
267 274
268 spin_unlock_irqrestore(&whc->lock, flags); 275 spin_unlock_irqrestore(&whc->lock, flags);
269 276
270 if (!err) 277 if (!err)
271 queue_work(whc->workqueue, &whc->async_work); 278 queue_work(whc->workqueue, &whc->async_work);
272 279
273 return 0; 280 return err;
274} 281}
275 282
276/** 283/**
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index 1569afd6245b..e019a5058ab8 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -186,6 +186,28 @@ static void whc_endpoint_disable(struct usb_hcd *usb_hcd,
186 } 186 }
187} 187}
188 188
189static void whc_endpoint_reset(struct usb_hcd *usb_hcd,
190 struct usb_host_endpoint *ep)
191{
192 struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
193 struct whc *whc = wusbhc_to_whc(wusbhc);
194 struct whc_qset *qset;
195
196 qset = ep->hcpriv;
197 if (qset) {
198 qset->remove = 1;
199
200 if (usb_endpoint_xfer_bulk(&ep->desc)
201 || usb_endpoint_xfer_control(&ep->desc))
202 queue_work(whc->workqueue, &whc->async_work);
203 else
204 queue_work(whc->workqueue, &whc->periodic_work);
205
206 qset_reset(whc, qset);
207 }
208}
209
210
189static struct hc_driver whc_hc_driver = { 211static struct hc_driver whc_hc_driver = {
190 .description = "whci-hcd", 212 .description = "whci-hcd",
191 .product_desc = "Wireless host controller", 213 .product_desc = "Wireless host controller",
@@ -200,6 +222,7 @@ static struct hc_driver whc_hc_driver = {
200 .urb_enqueue = whc_urb_enqueue, 222 .urb_enqueue = whc_urb_enqueue,
201 .urb_dequeue = whc_urb_dequeue, 223 .urb_dequeue = whc_urb_dequeue,
202 .endpoint_disable = whc_endpoint_disable, 224 .endpoint_disable = whc_endpoint_disable,
225 .endpoint_reset = whc_endpoint_reset,
203 226
204 .hub_status_data = wusbhc_rh_status_data, 227 .hub_status_data = wusbhc_rh_status_data,
205 .hub_control = wusbhc_rh_control, 228 .hub_control = wusbhc_rh_control,
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c
index df8b85f07092..ff4ef9e910d9 100644
--- a/drivers/usb/host/whci/pzl.c
+++ b/drivers/usb/host/whci/pzl.c
@@ -128,7 +128,8 @@ static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset)
128 process_inactive_qtd(whc, qset, td); 128 process_inactive_qtd(whc, qset, td);
129 } 129 }
130 130
131 update |= qset_add_qtds(whc, qset); 131 if (!qset->remove)
132 update |= qset_add_qtds(whc, qset);
132 133
133done: 134done:
134 /* 135 /*
@@ -282,23 +283,29 @@ int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags)
282 283
283 spin_lock_irqsave(&whc->lock, flags); 284 spin_lock_irqsave(&whc->lock, flags);
284 285
286 err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
287 if (err < 0) {
288 spin_unlock_irqrestore(&whc->lock, flags);
289 return err;
290 }
291
285 qset = get_qset(whc, urb, GFP_ATOMIC); 292 qset = get_qset(whc, urb, GFP_ATOMIC);
286 if (qset == NULL) 293 if (qset == NULL)
287 err = -ENOMEM; 294 err = -ENOMEM;
288 else 295 else
289 err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); 296 err = qset_add_urb(whc, qset, urb, GFP_ATOMIC);
290 if (!err) { 297 if (!err) {
291 usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
292 if (!qset->in_sw_list) 298 if (!qset->in_sw_list)
293 qset_insert_in_sw_list(whc, qset); 299 qset_insert_in_sw_list(whc, qset);
294 } 300 } else
301 usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb);
295 302
296 spin_unlock_irqrestore(&whc->lock, flags); 303 spin_unlock_irqrestore(&whc->lock, flags);
297 304
298 if (!err) 305 if (!err)
299 queue_work(whc->workqueue, &whc->periodic_work); 306 queue_work(whc->workqueue, &whc->periodic_work);
300 307
301 return 0; 308 return err;
302} 309}
303 310
304/** 311/**
@@ -353,7 +360,6 @@ void pzl_qset_delete(struct whc *whc, struct whc_qset *qset)
353 qset_delete(whc, qset); 360 qset_delete(whc, qset);
354} 361}
355 362
356
357/** 363/**
358 * pzl_init - initialize the periodic zone list 364 * pzl_init - initialize the periodic zone list
359 * @whc: the WHCI host controller 365 * @whc: the WHCI host controller
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 7be74314ee12..640b38fbd051 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -89,11 +89,16 @@ static void qset_fill_qh(struct whc_qset *qset, struct urb *urb)
89 QH_INFO3_TX_RATE_53_3 89 QH_INFO3_TX_RATE_53_3
90 | QH_INFO3_TX_PWR(0) /* 0 == max power */ 90 | QH_INFO3_TX_PWR(0) /* 0 == max power */
91 ); 91 );
92
93 qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
92} 94}
93 95
94/** 96/**
95 * qset_clear - clear fields in a qset so it may be reinserted into a 97 * qset_clear - clear fields in a qset so it may be reinserted into a
96 * schedule 98 * schedule.
99 *
100 * The sequence number and current window are not cleared (see
101 * qset_reset()).
97 */ 102 */
98void qset_clear(struct whc *whc, struct whc_qset *qset) 103void qset_clear(struct whc *whc, struct whc_qset *qset)
99{ 104{
@@ -101,9 +106,8 @@ void qset_clear(struct whc *whc, struct whc_qset *qset)
101 qset->remove = 0; 106 qset->remove = 0;
102 107
103 qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T); 108 qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T);
104 qset->qh.status = cpu_to_le16(QH_STATUS_ICUR(qset->td_start)); 109 qset->qh.status = qset->qh.status & QH_STATUS_SEQ_MASK;
105 qset->qh.err_count = 0; 110 qset->qh.err_count = 0;
106 qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
107 qset->qh.scratch[0] = 0; 111 qset->qh.scratch[0] = 0;
108 qset->qh.scratch[1] = 0; 112 qset->qh.scratch[1] = 0;
109 qset->qh.scratch[2] = 0; 113 qset->qh.scratch[2] = 0;
@@ -114,6 +118,20 @@ void qset_clear(struct whc *whc, struct whc_qset *qset)
114} 118}
115 119
116/** 120/**
121 * qset_reset - reset endpoint state in a qset.
122 *
123 * Clears the sequence number and current window. This qset must not
124 * be in the ASL or PZL.
125 */
126void qset_reset(struct whc *whc, struct whc_qset *qset)
127{
128 wait_for_completion(&qset->remove_complete);
129
130 qset->qh.status &= ~QH_STATUS_SEQ_MASK;
131 qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
132}
133
134/**
117 * get_qset - get the qset for an async endpoint 135 * get_qset - get the qset for an async endpoint
118 * 136 *
119 * A new qset is created if one does not already exist. 137 * A new qset is created if one does not already exist.
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h
index d3543a181dc9..24e94d983c5e 100644
--- a/drivers/usb/host/whci/whcd.h
+++ b/drivers/usb/host/whci/whcd.h
@@ -184,6 +184,7 @@ void qset_free(struct whc *whc, struct whc_qset *qset);
184struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags); 184struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags);
185void qset_delete(struct whc *whc, struct whc_qset *qset); 185void qset_delete(struct whc *whc, struct whc_qset *qset);
186void qset_clear(struct whc *whc, struct whc_qset *qset); 186void qset_clear(struct whc *whc, struct whc_qset *qset);
187void qset_reset(struct whc *whc, struct whc_qset *qset);
187int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, 188int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb,
188 gfp_t mem_flags); 189 gfp_t mem_flags);
189void qset_free_std(struct whc *whc, struct whc_std *std); 190void qset_free_std(struct whc *whc, struct whc_std *std);
diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h
index 51df7e313b38..794dba0d0f0a 100644
--- a/drivers/usb/host/whci/whci-hc.h
+++ b/drivers/usb/host/whci/whci-hc.h
@@ -185,6 +185,7 @@ struct whc_qhead {
185#define QH_STATUS_FLOW_CTRL (1 << 15) 185#define QH_STATUS_FLOW_CTRL (1 << 15)
186#define QH_STATUS_ICUR(i) ((i) << 5) 186#define QH_STATUS_ICUR(i) ((i) << 5)
187#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7) 187#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7)
188#define QH_STATUS_SEQ_MASK 0x1f
188 189
189/** 190/**
190 * usb_pipe_to_qh_type - USB core pipe type to QH transfer type 191 * usb_pipe_to_qh_type - USB core pipe type to QH transfer type
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 569ef0fed0f6..1976e9b41800 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -579,6 +579,7 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx)
579 * trigger the "send a ZLP?" confusion. 579 * trigger the "send a ZLP?" confusion.
580 */ 580 */
581 rndis = (maxpacket & 0x3f) == 0 581 rndis = (maxpacket & 0x3f) == 0
582 && length > maxpacket
582 && length < 0xffff 583 && length < 0xffff
583 && (length % maxpacket) != 0; 584 && (length % maxpacket) != 0;
584 585
@@ -1228,27 +1229,7 @@ void cppi_completion(struct musb *musb, u32 rx, u32 tx)
1228 1229
1229 hw_ep = tx_ch->hw_ep; 1230 hw_ep = tx_ch->hw_ep;
1230 1231
1231 /* Peripheral role never repurposes the 1232 musb_dma_completion(musb, index + 1, 1);
1232 * endpoint, so immediate completion is
1233 * safe. Host role waits for the fifo
1234 * to empty (TXPKTRDY irq) before going
1235 * to the next queued bulk transfer.
1236 */
1237 if (is_host_active(cppi->musb)) {
1238#if 0
1239 /* WORKAROUND because we may
1240 * not always get TXKPTRDY ...
1241 */
1242 int csr;
1243
1244 csr = musb_readw(hw_ep->regs,
1245 MUSB_TXCSR);
1246 if (csr & MUSB_TXCSR_TXPKTRDY)
1247#endif
1248 completed = false;
1249 }
1250 if (completed)
1251 musb_dma_completion(musb, index + 1, 1);
1252 1233
1253 } else { 1234 } else {
1254 /* Bigger transfer than we could fit in 1235 /* Bigger transfer than we could fit in
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 338cd1611ab3..0112353ec97d 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2170,26 +2170,22 @@ static int musb_suspend(struct platform_device *pdev, pm_message_t message)
2170 return 0; 2170 return 0;
2171} 2171}
2172 2172
2173static int musb_resume(struct platform_device *pdev) 2173static int musb_resume_early(struct platform_device *pdev)
2174{ 2174{
2175 unsigned long flags;
2176 struct musb *musb = dev_to_musb(&pdev->dev); 2175 struct musb *musb = dev_to_musb(&pdev->dev);
2177 2176
2178 if (!musb->clock) 2177 if (!musb->clock)
2179 return 0; 2178 return 0;
2180 2179
2181 spin_lock_irqsave(&musb->lock, flags);
2182
2183 if (musb->set_clock) 2180 if (musb->set_clock)
2184 musb->set_clock(musb->clock, 1); 2181 musb->set_clock(musb->clock, 1);
2185 else 2182 else
2186 clk_enable(musb->clock); 2183 clk_enable(musb->clock);
2187 2184
2188 /* for static cmos like DaVinci, register values were preserved 2185 /* for static cmos like DaVinci, register values were preserved
2189 * unless for some reason the whole soc powered down and we're 2186 * unless for some reason the whole soc powered down or the USB
2190 * not treating that as a whole-system restart (e.g. swsusp) 2187 * module got reset through the PSC (vs just being disabled).
2191 */ 2188 */
2192 spin_unlock_irqrestore(&musb->lock, flags);
2193 return 0; 2189 return 0;
2194} 2190}
2195 2191
@@ -2207,7 +2203,7 @@ static struct platform_driver musb_driver = {
2207 .remove = __devexit_p(musb_remove), 2203 .remove = __devexit_p(musb_remove),
2208 .shutdown = musb_shutdown, 2204 .shutdown = musb_shutdown,
2209 .suspend = musb_suspend, 2205 .suspend = musb_suspend,
2210 .resume = musb_resume, 2206 .resume_early = musb_resume_early,
2211}; 2207};
2212 2208
2213/*-------------------------------------------------------------------------*/ 2209/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index c7ebd0867fcc..f79440cdfe7e 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -165,9 +165,15 @@ static void nuke(struct musb_ep *ep, const int status)
165 if (is_dma_capable() && ep->dma) { 165 if (is_dma_capable() && ep->dma) {
166 struct dma_controller *c = ep->musb->dma_controller; 166 struct dma_controller *c = ep->musb->dma_controller;
167 int value; 167 int value;
168
168 if (ep->is_in) { 169 if (ep->is_in) {
170 /*
171 * The programming guide says that we must not clear
172 * the DMAMODE bit before DMAENAB, so we only
173 * clear it in the second write...
174 */
169 musb_writew(epio, MUSB_TXCSR, 175 musb_writew(epio, MUSB_TXCSR,
170 0 | MUSB_TXCSR_FLUSHFIFO); 176 MUSB_TXCSR_DMAMODE | MUSB_TXCSR_FLUSHFIFO);
171 musb_writew(epio, MUSB_TXCSR, 177 musb_writew(epio, MUSB_TXCSR,
172 0 | MUSB_TXCSR_FLUSHFIFO); 178 0 | MUSB_TXCSR_FLUSHFIFO);
173 } else { 179 } else {
@@ -230,7 +236,7 @@ static inline int max_ep_writesize(struct musb *musb, struct musb_ep *ep)
230 | IN token(s) are recd from Host. 236 | IN token(s) are recd from Host.
231 | -> DMA interrupt on completion 237 | -> DMA interrupt on completion
232 | calls TxAvail. 238 | calls TxAvail.
233 | -> stop DMA, ~DmaEenab, 239 | -> stop DMA, ~DMAENAB,
234 | -> set TxPktRdy for last short pkt or zlp 240 | -> set TxPktRdy for last short pkt or zlp
235 | -> Complete Request 241 | -> Complete Request
236 | -> Continue next request (call txstate) 242 | -> Continue next request (call txstate)
@@ -315,9 +321,17 @@ static void txstate(struct musb *musb, struct musb_request *req)
315 request->dma, request_size); 321 request->dma, request_size);
316 if (use_dma) { 322 if (use_dma) {
317 if (musb_ep->dma->desired_mode == 0) { 323 if (musb_ep->dma->desired_mode == 0) {
318 /* ASSERT: DMAENAB is clear */ 324 /*
319 csr &= ~(MUSB_TXCSR_AUTOSET | 325 * We must not clear the DMAMODE bit
320 MUSB_TXCSR_DMAMODE); 326 * before the DMAENAB bit -- and the
327 * latter doesn't always get cleared
328 * before we get here...
329 */
330 csr &= ~(MUSB_TXCSR_AUTOSET
331 | MUSB_TXCSR_DMAENAB);
332 musb_writew(epio, MUSB_TXCSR, csr
333 | MUSB_TXCSR_P_WZC_BITS);
334 csr &= ~MUSB_TXCSR_DMAMODE;
321 csr |= (MUSB_TXCSR_DMAENAB | 335 csr |= (MUSB_TXCSR_DMAENAB |
322 MUSB_TXCSR_MODE); 336 MUSB_TXCSR_MODE);
323 /* against programming guide */ 337 /* against programming guide */
@@ -334,10 +348,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
334 348
335#elif defined(CONFIG_USB_TI_CPPI_DMA) 349#elif defined(CONFIG_USB_TI_CPPI_DMA)
336 /* program endpoint CSR first, then setup DMA */ 350 /* program endpoint CSR first, then setup DMA */
337 csr &= ~(MUSB_TXCSR_AUTOSET 351 csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY);
338 | MUSB_TXCSR_DMAMODE
339 | MUSB_TXCSR_P_UNDERRUN
340 | MUSB_TXCSR_TXPKTRDY);
341 csr |= MUSB_TXCSR_MODE | MUSB_TXCSR_DMAENAB; 352 csr |= MUSB_TXCSR_MODE | MUSB_TXCSR_DMAENAB;
342 musb_writew(epio, MUSB_TXCSR, 353 musb_writew(epio, MUSB_TXCSR,
343 (MUSB_TXCSR_P_WZC_BITS & ~MUSB_TXCSR_P_UNDERRUN) 354 (MUSB_TXCSR_P_WZC_BITS & ~MUSB_TXCSR_P_UNDERRUN)
@@ -364,8 +375,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
364 if (!use_dma) { 375 if (!use_dma) {
365 c->channel_release(musb_ep->dma); 376 c->channel_release(musb_ep->dma);
366 musb_ep->dma = NULL; 377 musb_ep->dma = NULL;
367 /* ASSERT: DMAENAB clear */ 378 csr &= ~MUSB_TXCSR_DMAENAB;
368 csr &= ~(MUSB_TXCSR_DMAMODE | MUSB_TXCSR_MODE); 379 musb_writew(epio, MUSB_TXCSR, csr);
369 /* invariant: prequest->buf is non-null */ 380 /* invariant: prequest->buf is non-null */
370 } 381 }
371#elif defined(CONFIG_USB_TUSB_OMAP_DMA) 382#elif defined(CONFIG_USB_TUSB_OMAP_DMA)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 499c431a6d62..db1b57415ec7 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -4,6 +4,7 @@
4 * Copyright 2005 Mentor Graphics Corporation 4 * Copyright 2005 Mentor Graphics Corporation
5 * Copyright (C) 2005-2006 by Texas Instruments 5 * Copyright (C) 2005-2006 by Texas Instruments
6 * Copyright (C) 2006-2007 Nokia Corporation 6 * Copyright (C) 2006-2007 Nokia Corporation
7 * Copyright (C) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
7 * 8 *
8 * This program is free software; you can redistribute it and/or 9 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License 10 * modify it under the terms of the GNU General Public License
@@ -96,8 +97,8 @@
96 97
97 98
98static void musb_ep_program(struct musb *musb, u8 epnum, 99static void musb_ep_program(struct musb *musb, u8 epnum,
99 struct urb *urb, unsigned int nOut, 100 struct urb *urb, int is_out,
100 u8 *buf, u32 len); 101 u8 *buf, u32 offset, u32 len);
101 102
102/* 103/*
103 * Clear TX fifo. Needed to avoid BABBLE errors. 104 * Clear TX fifo. Needed to avoid BABBLE errors.
@@ -125,6 +126,29 @@ static void musb_h_tx_flush_fifo(struct musb_hw_ep *ep)
125 } 126 }
126} 127}
127 128
129static void musb_h_ep0_flush_fifo(struct musb_hw_ep *ep)
130{
131 void __iomem *epio = ep->regs;
132 u16 csr;
133 int retries = 5;
134
135 /* scrub any data left in the fifo */
136 do {
137 csr = musb_readw(epio, MUSB_TXCSR);
138 if (!(csr & (MUSB_CSR0_TXPKTRDY | MUSB_CSR0_RXPKTRDY)))
139 break;
140 musb_writew(epio, MUSB_TXCSR, MUSB_CSR0_FLUSHFIFO);
141 csr = musb_readw(epio, MUSB_TXCSR);
142 udelay(10);
143 } while (--retries);
144
145 WARN(!retries, "Could not flush host TX%d fifo: csr: %04x\n",
146 ep->epnum, csr);
147
148 /* and reset for the next transfer */
149 musb_writew(epio, MUSB_TXCSR, 0);
150}
151
128/* 152/*
129 * Start transmit. Caller is responsible for locking shared resources. 153 * Start transmit. Caller is responsible for locking shared resources.
130 * musb must be locked. 154 * musb must be locked.
@@ -145,13 +169,15 @@ static inline void musb_h_tx_start(struct musb_hw_ep *ep)
145 169
146} 170}
147 171
148static inline void cppi_host_txdma_start(struct musb_hw_ep *ep) 172static inline void musb_h_tx_dma_start(struct musb_hw_ep *ep)
149{ 173{
150 u16 txcsr; 174 u16 txcsr;
151 175
152 /* NOTE: no locks here; caller should lock and select EP */ 176 /* NOTE: no locks here; caller should lock and select EP */
153 txcsr = musb_readw(ep->regs, MUSB_TXCSR); 177 txcsr = musb_readw(ep->regs, MUSB_TXCSR);
154 txcsr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_H_WZC_BITS; 178 txcsr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_H_WZC_BITS;
179 if (is_cppi_enabled())
180 txcsr |= MUSB_TXCSR_DMAMODE;
155 musb_writew(ep->regs, MUSB_TXCSR, txcsr); 181 musb_writew(ep->regs, MUSB_TXCSR, txcsr);
156} 182}
157 183
@@ -166,9 +192,10 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
166{ 192{
167 u16 frame; 193 u16 frame;
168 u32 len; 194 u32 len;
169 void *buf;
170 void __iomem *mbase = musb->mregs; 195 void __iomem *mbase = musb->mregs;
171 struct urb *urb = next_urb(qh); 196 struct urb *urb = next_urb(qh);
197 void *buf = urb->transfer_buffer;
198 u32 offset = 0;
172 struct musb_hw_ep *hw_ep = qh->hw_ep; 199 struct musb_hw_ep *hw_ep = qh->hw_ep;
173 unsigned pipe = urb->pipe; 200 unsigned pipe = urb->pipe;
174 u8 address = usb_pipedevice(pipe); 201 u8 address = usb_pipedevice(pipe);
@@ -191,7 +218,7 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
191 case USB_ENDPOINT_XFER_ISOC: 218 case USB_ENDPOINT_XFER_ISOC:
192 qh->iso_idx = 0; 219 qh->iso_idx = 0;
193 qh->frame = 0; 220 qh->frame = 0;
194 buf = urb->transfer_buffer + urb->iso_frame_desc[0].offset; 221 offset = urb->iso_frame_desc[0].offset;
195 len = urb->iso_frame_desc[0].length; 222 len = urb->iso_frame_desc[0].length;
196 break; 223 break;
197 default: /* bulk, interrupt */ 224 default: /* bulk, interrupt */
@@ -209,14 +236,14 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
209 case USB_ENDPOINT_XFER_ISOC: s = "-iso"; break; 236 case USB_ENDPOINT_XFER_ISOC: s = "-iso"; break;
210 default: s = "-intr"; break; 237 default: s = "-intr"; break;
211 }; s; }), 238 }; s; }),
212 epnum, buf, len); 239 epnum, buf + offset, len);
213 240
214 /* Configure endpoint */ 241 /* Configure endpoint */
215 if (is_in || hw_ep->is_shared_fifo) 242 if (is_in || hw_ep->is_shared_fifo)
216 hw_ep->in_qh = qh; 243 hw_ep->in_qh = qh;
217 else 244 else
218 hw_ep->out_qh = qh; 245 hw_ep->out_qh = qh;
219 musb_ep_program(musb, epnum, urb, !is_in, buf, len); 246 musb_ep_program(musb, epnum, urb, !is_in, buf, offset, len);
220 247
221 /* transmit may have more work: start it when it is time */ 248 /* transmit may have more work: start it when it is time */
222 if (is_in) 249 if (is_in)
@@ -227,7 +254,6 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
227 case USB_ENDPOINT_XFER_ISOC: 254 case USB_ENDPOINT_XFER_ISOC:
228 case USB_ENDPOINT_XFER_INT: 255 case USB_ENDPOINT_XFER_INT:
229 DBG(3, "check whether there's still time for periodic Tx\n"); 256 DBG(3, "check whether there's still time for periodic Tx\n");
230 qh->iso_idx = 0;
231 frame = musb_readw(mbase, MUSB_FRAME); 257 frame = musb_readw(mbase, MUSB_FRAME);
232 /* FIXME this doesn't implement that scheduling policy ... 258 /* FIXME this doesn't implement that scheduling policy ...
233 * or handle framecounter wrapping 259 * or handle framecounter wrapping
@@ -256,7 +282,7 @@ start:
256 if (!hw_ep->tx_channel) 282 if (!hw_ep->tx_channel)
257 musb_h_tx_start(hw_ep); 283 musb_h_tx_start(hw_ep);
258 else if (is_cppi_enabled() || tusb_dma_omap()) 284 else if (is_cppi_enabled() || tusb_dma_omap())
259 cppi_host_txdma_start(hw_ep); 285 musb_h_tx_dma_start(hw_ep);
260 } 286 }
261} 287}
262 288
@@ -567,10 +593,17 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
567 csr = musb_readw(ep->regs, MUSB_TXCSR); 593 csr = musb_readw(ep->regs, MUSB_TXCSR);
568 if (csr & MUSB_TXCSR_MODE) { 594 if (csr & MUSB_TXCSR_MODE) {
569 musb_h_tx_flush_fifo(ep); 595 musb_h_tx_flush_fifo(ep);
596 csr = musb_readw(ep->regs, MUSB_TXCSR);
570 musb_writew(ep->regs, MUSB_TXCSR, 597 musb_writew(ep->regs, MUSB_TXCSR,
571 MUSB_TXCSR_FRCDATATOG); 598 csr | MUSB_TXCSR_FRCDATATOG);
572 } 599 }
573 /* clear mode (and everything else) to enable Rx */ 600
601 /*
602 * Clear the MODE bit (and everything else) to enable Rx.
603 * NOTE: we mustn't clear the DMAMODE bit before DMAENAB.
604 */
605 if (csr & MUSB_TXCSR_DMAMODE)
606 musb_writew(ep->regs, MUSB_TXCSR, MUSB_TXCSR_DMAMODE);
574 musb_writew(ep->regs, MUSB_TXCSR, 0); 607 musb_writew(ep->regs, MUSB_TXCSR, 0);
575 608
576 /* scrub all previous state, clearing toggle */ 609 /* scrub all previous state, clearing toggle */
@@ -601,14 +634,68 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
601 ep->rx_reinit = 0; 634 ep->rx_reinit = 0;
602} 635}
603 636
637static bool musb_tx_dma_program(struct dma_controller *dma,
638 struct musb_hw_ep *hw_ep, struct musb_qh *qh,
639 struct urb *urb, u32 offset, u32 length)
640{
641 struct dma_channel *channel = hw_ep->tx_channel;
642 void __iomem *epio = hw_ep->regs;
643 u16 pkt_size = qh->maxpacket;
644 u16 csr;
645 u8 mode;
646
647#ifdef CONFIG_USB_INVENTRA_DMA
648 if (length > channel->max_len)
649 length = channel->max_len;
650
651 csr = musb_readw(epio, MUSB_TXCSR);
652 if (length > pkt_size) {
653 mode = 1;
654 csr |= MUSB_TXCSR_AUTOSET
655 | MUSB_TXCSR_DMAMODE
656 | MUSB_TXCSR_DMAENAB;
657 } else {
658 mode = 0;
659 csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE);
660 csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */
661 }
662 channel->desired_mode = mode;
663 musb_writew(epio, MUSB_TXCSR, csr);
664#else
665 if (!is_cppi_enabled() && !tusb_dma_omap())
666 return false;
667
668 channel->actual_len = 0;
669
670 /*
671 * TX uses "RNDIS" mode automatically but needs help
672 * to identify the zero-length-final-packet case.
673 */
674 mode = (urb->transfer_flags & URB_ZERO_PACKET) ? 1 : 0;
675#endif
676
677 qh->segsize = length;
678
679 if (!dma->channel_program(channel, pkt_size, mode,
680 urb->transfer_dma + offset, length)) {
681 dma->channel_release(channel);
682 hw_ep->tx_channel = NULL;
683
684 csr = musb_readw(epio, MUSB_TXCSR);
685 csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAENAB);
686 musb_writew(epio, MUSB_TXCSR, csr | MUSB_TXCSR_H_WZC_BITS);
687 return false;
688 }
689 return true;
690}
604 691
605/* 692/*
606 * Program an HDRC endpoint as per the given URB 693 * Program an HDRC endpoint as per the given URB
607 * Context: irqs blocked, controller lock held 694 * Context: irqs blocked, controller lock held
608 */ 695 */
609static void musb_ep_program(struct musb *musb, u8 epnum, 696static void musb_ep_program(struct musb *musb, u8 epnum,
610 struct urb *urb, unsigned int is_out, 697 struct urb *urb, int is_out,
611 u8 *buf, u32 len) 698 u8 *buf, u32 offset, u32 len)
612{ 699{
613 struct dma_controller *dma_controller; 700 struct dma_controller *dma_controller;
614 struct dma_channel *dma_channel; 701 struct dma_channel *dma_channel;
@@ -667,12 +754,17 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
667 754
668 /* general endpoint setup */ 755 /* general endpoint setup */
669 if (epnum) { 756 if (epnum) {
670 /* ASSERT: TXCSR_DMAENAB was already cleared */
671
672 /* flush all old state, set default */ 757 /* flush all old state, set default */
673 musb_h_tx_flush_fifo(hw_ep); 758 musb_h_tx_flush_fifo(hw_ep);
759
760 /*
761 * We must not clear the DMAMODE bit before or in
762 * the same cycle with the DMAENAB bit, so we clear
763 * the latter first...
764 */
674 csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT 765 csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT
675 | MUSB_TXCSR_DMAMODE 766 | MUSB_TXCSR_AUTOSET
767 | MUSB_TXCSR_DMAENAB
676 | MUSB_TXCSR_FRCDATATOG 768 | MUSB_TXCSR_FRCDATATOG
677 | MUSB_TXCSR_H_RXSTALL 769 | MUSB_TXCSR_H_RXSTALL
678 | MUSB_TXCSR_H_ERROR 770 | MUSB_TXCSR_H_ERROR
@@ -680,24 +772,20 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
680 ); 772 );
681 csr |= MUSB_TXCSR_MODE; 773 csr |= MUSB_TXCSR_MODE;
682 774
683 if (usb_gettoggle(urb->dev, 775 if (usb_gettoggle(urb->dev, qh->epnum, 1))
684 qh->epnum, 1))
685 csr |= MUSB_TXCSR_H_WR_DATATOGGLE 776 csr |= MUSB_TXCSR_H_WR_DATATOGGLE
686 | MUSB_TXCSR_H_DATATOGGLE; 777 | MUSB_TXCSR_H_DATATOGGLE;
687 else 778 else
688 csr |= MUSB_TXCSR_CLRDATATOG; 779 csr |= MUSB_TXCSR_CLRDATATOG;
689 780
690 /* twice in case of double packet buffering */
691 musb_writew(epio, MUSB_TXCSR, csr); 781 musb_writew(epio, MUSB_TXCSR, csr);
692 /* REVISIT may need to clear FLUSHFIFO ... */ 782 /* REVISIT may need to clear FLUSHFIFO ... */
783 csr &= ~MUSB_TXCSR_DMAMODE;
693 musb_writew(epio, MUSB_TXCSR, csr); 784 musb_writew(epio, MUSB_TXCSR, csr);
694 csr = musb_readw(epio, MUSB_TXCSR); 785 csr = musb_readw(epio, MUSB_TXCSR);
695 } else { 786 } else {
696 /* endpoint 0: just flush */ 787 /* endpoint 0: just flush */
697 musb_writew(epio, MUSB_CSR0, 788 musb_h_ep0_flush_fifo(hw_ep);
698 csr | MUSB_CSR0_FLUSHFIFO);
699 musb_writew(epio, MUSB_CSR0,
700 csr | MUSB_CSR0_FLUSHFIFO);
701 } 789 }
702 790
703 /* target addr and (for multipoint) hub addr/port */ 791 /* target addr and (for multipoint) hub addr/port */
@@ -734,113 +822,14 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
734 else 822 else
735 load_count = min((u32) packet_sz, len); 823 load_count = min((u32) packet_sz, len);
736 824
737#ifdef CONFIG_USB_INVENTRA_DMA 825 if (dma_channel && musb_tx_dma_program(dma_controller,
738 if (dma_channel) { 826 hw_ep, qh, urb, offset, len))
739 827 load_count = 0;
740 /* clear previous state */
741 csr = musb_readw(epio, MUSB_TXCSR);
742 csr &= ~(MUSB_TXCSR_AUTOSET
743 | MUSB_TXCSR_DMAMODE
744 | MUSB_TXCSR_DMAENAB);
745 csr |= MUSB_TXCSR_MODE;
746 musb_writew(epio, MUSB_TXCSR,
747 csr | MUSB_TXCSR_MODE);
748
749 qh->segsize = min(len, dma_channel->max_len);
750
751 if (qh->segsize <= packet_sz)
752 dma_channel->desired_mode = 0;
753 else
754 dma_channel->desired_mode = 1;
755
756
757 if (dma_channel->desired_mode == 0) {
758 csr &= ~(MUSB_TXCSR_AUTOSET
759 | MUSB_TXCSR_DMAMODE);
760 csr |= (MUSB_TXCSR_DMAENAB);
761 /* against programming guide */
762 } else
763 csr |= (MUSB_TXCSR_AUTOSET
764 | MUSB_TXCSR_DMAENAB
765 | MUSB_TXCSR_DMAMODE);
766
767 musb_writew(epio, MUSB_TXCSR, csr);
768
769 dma_ok = dma_controller->channel_program(
770 dma_channel, packet_sz,
771 dma_channel->desired_mode,
772 urb->transfer_dma,
773 qh->segsize);
774 if (dma_ok) {
775 load_count = 0;
776 } else {
777 dma_controller->channel_release(dma_channel);
778 if (is_out)
779 hw_ep->tx_channel = NULL;
780 else
781 hw_ep->rx_channel = NULL;
782 dma_channel = NULL;
783 }
784 }
785#endif
786
787 /* candidate for DMA */
788 if ((is_cppi_enabled() || tusb_dma_omap()) && dma_channel) {
789
790 /* program endpoint CSRs first, then setup DMA.
791 * assume CPPI setup succeeds.
792 * defer enabling dma.
793 */
794 csr = musb_readw(epio, MUSB_TXCSR);
795 csr &= ~(MUSB_TXCSR_AUTOSET
796 | MUSB_TXCSR_DMAMODE
797 | MUSB_TXCSR_DMAENAB);
798 csr |= MUSB_TXCSR_MODE;
799 musb_writew(epio, MUSB_TXCSR,
800 csr | MUSB_TXCSR_MODE);
801
802 dma_channel->actual_len = 0L;
803 qh->segsize = len;
804
805 /* TX uses "rndis" mode automatically, but needs help
806 * to identify the zero-length-final-packet case.
807 */
808 dma_ok = dma_controller->channel_program(
809 dma_channel, packet_sz,
810 (urb->transfer_flags
811 & URB_ZERO_PACKET)
812 == URB_ZERO_PACKET,
813 urb->transfer_dma,
814 qh->segsize);
815 if (dma_ok) {
816 load_count = 0;
817 } else {
818 dma_controller->channel_release(dma_channel);
819 hw_ep->tx_channel = NULL;
820 dma_channel = NULL;
821
822 /* REVISIT there's an error path here that
823 * needs handling: can't do dma, but
824 * there's no pio buffer address...
825 */
826 }
827 }
828 828
829 if (load_count) { 829 if (load_count) {
830 /* ASSERT: TXCSR_DMAENAB was already cleared */
831
832 /* PIO to load FIFO */ 830 /* PIO to load FIFO */
833 qh->segsize = load_count; 831 qh->segsize = load_count;
834 musb_write_fifo(hw_ep, load_count, buf); 832 musb_write_fifo(hw_ep, load_count, buf);
835 csr = musb_readw(epio, MUSB_TXCSR);
836 csr &= ~(MUSB_TXCSR_DMAENAB
837 | MUSB_TXCSR_DMAMODE
838 | MUSB_TXCSR_AUTOSET);
839 /* write CSR */
840 csr |= MUSB_TXCSR_MODE;
841
842 if (epnum)
843 musb_writew(epio, MUSB_TXCSR, csr);
844 } 833 }
845 834
846 /* re-enable interrupt */ 835 /* re-enable interrupt */
@@ -895,7 +884,7 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
895 dma_channel, packet_sz, 884 dma_channel, packet_sz,
896 !(urb->transfer_flags 885 !(urb->transfer_flags
897 & URB_SHORT_NOT_OK), 886 & URB_SHORT_NOT_OK),
898 urb->transfer_dma, 887 urb->transfer_dma + offset,
899 qh->segsize); 888 qh->segsize);
900 if (!dma_ok) { 889 if (!dma_ok) {
901 dma_controller->channel_release( 890 dma_controller->channel_release(
@@ -1063,11 +1052,7 @@ irqreturn_t musb_h_ep0_irq(struct musb *musb)
1063 csr &= ~MUSB_CSR0_H_NAKTIMEOUT; 1052 csr &= ~MUSB_CSR0_H_NAKTIMEOUT;
1064 musb_writew(epio, MUSB_CSR0, csr); 1053 musb_writew(epio, MUSB_CSR0, csr);
1065 } else { 1054 } else {
1066 csr |= MUSB_CSR0_FLUSHFIFO; 1055 musb_h_ep0_flush_fifo(hw_ep);
1067 musb_writew(epio, MUSB_CSR0, csr);
1068 musb_writew(epio, MUSB_CSR0, csr);
1069 csr &= ~MUSB_CSR0_H_NAKTIMEOUT;
1070 musb_writew(epio, MUSB_CSR0, csr);
1071 } 1056 }
1072 1057
1073 musb_writeb(epio, MUSB_NAKLIMIT0, 0); 1058 musb_writeb(epio, MUSB_NAKLIMIT0, 0);
@@ -1081,10 +1066,7 @@ irqreturn_t musb_h_ep0_irq(struct musb *musb)
1081 * SHOULD NEVER HAPPEN! */ 1066 * SHOULD NEVER HAPPEN! */
1082 ERR("no URB for end 0\n"); 1067 ERR("no URB for end 0\n");
1083 1068
1084 musb_writew(epio, MUSB_CSR0, MUSB_CSR0_FLUSHFIFO); 1069 musb_h_ep0_flush_fifo(hw_ep);
1085 musb_writew(epio, MUSB_CSR0, MUSB_CSR0_FLUSHFIFO);
1086 musb_writew(epio, MUSB_CSR0, 0);
1087
1088 goto done; 1070 goto done;
1089 } 1071 }
1090 1072
@@ -1145,8 +1127,8 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1145 int pipe; 1127 int pipe;
1146 bool done = false; 1128 bool done = false;
1147 u16 tx_csr; 1129 u16 tx_csr;
1148 size_t wLength = 0; 1130 size_t length = 0;
1149 u8 *buf = NULL; 1131 size_t offset = 0;
1150 struct urb *urb; 1132 struct urb *urb;
1151 struct musb_hw_ep *hw_ep = musb->endpoints + epnum; 1133 struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
1152 void __iomem *epio = hw_ep->regs; 1134 void __iomem *epio = hw_ep->regs;
@@ -1164,7 +1146,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1164 /* with CPPI, DMA sometimes triggers "extra" irqs */ 1146 /* with CPPI, DMA sometimes triggers "extra" irqs */
1165 if (!urb) { 1147 if (!urb) {
1166 DBG(4, "extra TX%d ready, csr %04x\n", epnum, tx_csr); 1148 DBG(4, "extra TX%d ready, csr %04x\n", epnum, tx_csr);
1167 goto finish; 1149 return;
1168 } 1150 }
1169 1151
1170 pipe = urb->pipe; 1152 pipe = urb->pipe;
@@ -1201,7 +1183,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1201 musb_writew(epio, MUSB_TXCSR, 1183 musb_writew(epio, MUSB_TXCSR,
1202 MUSB_TXCSR_H_WZC_BITS 1184 MUSB_TXCSR_H_WZC_BITS
1203 | MUSB_TXCSR_TXPKTRDY); 1185 | MUSB_TXCSR_TXPKTRDY);
1204 goto finish; 1186 return;
1205 } 1187 }
1206 1188
1207 if (status) { 1189 if (status) {
@@ -1233,29 +1215,89 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1233 /* second cppi case */ 1215 /* second cppi case */
1234 if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) { 1216 if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
1235 DBG(4, "extra TX%d ready, csr %04x\n", epnum, tx_csr); 1217 DBG(4, "extra TX%d ready, csr %04x\n", epnum, tx_csr);
1236 goto finish; 1218 return;
1219 }
1220
1221 if (is_dma_capable() && dma && !status) {
1222 /*
1223 * DMA has completed. But if we're using DMA mode 1 (multi
1224 * packet DMA), we need a terminal TXPKTRDY interrupt before
1225 * we can consider this transfer completed, lest we trash
1226 * its last packet when writing the next URB's data. So we
1227 * switch back to mode 0 to get that interrupt; we'll come
1228 * back here once it happens.
1229 */
1230 if (tx_csr & MUSB_TXCSR_DMAMODE) {
1231 /*
1232 * We shouldn't clear DMAMODE with DMAENAB set; so
1233 * clear them in a safe order. That should be OK
1234 * once TXPKTRDY has been set (and I've never seen
1235 * it being 0 at this moment -- DMA interrupt latency
1236 * is significant) but if it hasn't been then we have
1237 * no choice but to stop being polite and ignore the
1238 * programmer's guide... :-)
1239 *
1240 * Note that we must write TXCSR with TXPKTRDY cleared
1241 * in order not to re-trigger the packet send (this bit
1242 * can't be cleared by CPU), and there's another caveat:
1243 * TXPKTRDY may be set shortly and then cleared in the
1244 * double-buffered FIFO mode, so we do an extra TXCSR
1245 * read for debouncing...
1246 */
1247 tx_csr &= musb_readw(epio, MUSB_TXCSR);
1248 if (tx_csr & MUSB_TXCSR_TXPKTRDY) {
1249 tx_csr &= ~(MUSB_TXCSR_DMAENAB |
1250 MUSB_TXCSR_TXPKTRDY);
1251 musb_writew(epio, MUSB_TXCSR,
1252 tx_csr | MUSB_TXCSR_H_WZC_BITS);
1253 }
1254 tx_csr &= ~(MUSB_TXCSR_DMAMODE |
1255 MUSB_TXCSR_TXPKTRDY);
1256 musb_writew(epio, MUSB_TXCSR,
1257 tx_csr | MUSB_TXCSR_H_WZC_BITS);
1258
1259 /*
1260 * There is no guarantee that we'll get an interrupt
1261 * after clearing DMAMODE as we might have done this
1262 * too late (after TXPKTRDY was cleared by controller).
1263 * Re-read TXCSR as we have spoiled its previous value.
1264 */
1265 tx_csr = musb_readw(epio, MUSB_TXCSR);
1266 }
1237 1267
1268 /*
1269 * We may get here from a DMA completion or TXPKTRDY interrupt.
1270 * In any case, we must check the FIFO status here and bail out
1271 * only if the FIFO still has data -- that should prevent the
1272 * "missed" TXPKTRDY interrupts and deal with double-buffered
1273 * FIFO mode too...
1274 */
1275 if (tx_csr & (MUSB_TXCSR_FIFONOTEMPTY | MUSB_TXCSR_TXPKTRDY)) {
1276 DBG(2, "DMA complete but packet still in FIFO, "
1277 "CSR %04x\n", tx_csr);
1278 return;
1279 }
1238 } 1280 }
1239 1281
1240 /* REVISIT this looks wrong... */
1241 if (!status || dma || usb_pipeisoc(pipe)) { 1282 if (!status || dma || usb_pipeisoc(pipe)) {
1242 if (dma) 1283 if (dma)
1243 wLength = dma->actual_len; 1284 length = dma->actual_len;
1244 else 1285 else
1245 wLength = qh->segsize; 1286 length = qh->segsize;
1246 qh->offset += wLength; 1287 qh->offset += length;
1247 1288
1248 if (usb_pipeisoc(pipe)) { 1289 if (usb_pipeisoc(pipe)) {
1249 struct usb_iso_packet_descriptor *d; 1290 struct usb_iso_packet_descriptor *d;
1250 1291
1251 d = urb->iso_frame_desc + qh->iso_idx; 1292 d = urb->iso_frame_desc + qh->iso_idx;
1252 d->actual_length = qh->segsize; 1293 d->actual_length = length;
1294 d->status = status;
1253 if (++qh->iso_idx >= urb->number_of_packets) { 1295 if (++qh->iso_idx >= urb->number_of_packets) {
1254 done = true; 1296 done = true;
1255 } else { 1297 } else {
1256 d++; 1298 d++;
1257 buf = urb->transfer_buffer + d->offset; 1299 offset = d->offset;
1258 wLength = d->length; 1300 length = d->length;
1259 } 1301 }
1260 } else if (dma) { 1302 } else if (dma) {
1261 done = true; 1303 done = true;
@@ -1268,10 +1310,8 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1268 & URB_ZERO_PACKET)) 1310 & URB_ZERO_PACKET))
1269 done = true; 1311 done = true;
1270 if (!done) { 1312 if (!done) {
1271 buf = urb->transfer_buffer 1313 offset = qh->offset;
1272 + qh->offset; 1314 length = urb->transfer_buffer_length - offset;
1273 wLength = urb->transfer_buffer_length
1274 - qh->offset;
1275 } 1315 }
1276 } 1316 }
1277 } 1317 }
@@ -1290,28 +1330,31 @@ void musb_host_tx(struct musb *musb, u8 epnum)
1290 urb->status = status; 1330 urb->status = status;
1291 urb->actual_length = qh->offset; 1331 urb->actual_length = qh->offset;
1292 musb_advance_schedule(musb, urb, hw_ep, USB_DIR_OUT); 1332 musb_advance_schedule(musb, urb, hw_ep, USB_DIR_OUT);
1333 return;
1334 } else if (usb_pipeisoc(pipe) && dma) {
1335 if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb,
1336 offset, length))
1337 return;
1338 } else if (tx_csr & MUSB_TXCSR_DMAENAB) {
1339 DBG(1, "not complete, but DMA enabled?\n");
1340 return;
1341 }
1293 1342
1294 } else if (!(tx_csr & MUSB_TXCSR_DMAENAB)) { 1343 /*
1295 /* WARN_ON(!buf); */ 1344 * PIO: start next packet in this URB.
1296 1345 *
1297 /* REVISIT: some docs say that when hw_ep->tx_double_buffered, 1346 * REVISIT: some docs say that when hw_ep->tx_double_buffered,
1298 * (and presumably, fifo is not half-full) we should write TWO 1347 * (and presumably, FIFO is not half-full) we should write *two*
1299 * packets before updating TXCSR ... other docs disagree ... 1348 * packets before updating TXCSR; other docs disagree...
1300 */ 1349 */
1301 /* PIO: start next packet in this URB */ 1350 if (length > qh->maxpacket)
1302 if (wLength > qh->maxpacket) 1351 length = qh->maxpacket;
1303 wLength = qh->maxpacket; 1352 musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
1304 musb_write_fifo(hw_ep, wLength, buf); 1353 qh->segsize = length;
1305 qh->segsize = wLength;
1306
1307 musb_ep_select(mbase, epnum);
1308 musb_writew(epio, MUSB_TXCSR,
1309 MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
1310 } else
1311 DBG(1, "not complete, but dma enabled?\n");
1312 1354
1313finish: 1355 musb_ep_select(mbase, epnum);
1314 return; 1356 musb_writew(epio, MUSB_TXCSR,
1357 MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
1315} 1358}
1316 1359
1317 1360
@@ -1841,7 +1884,7 @@ static int musb_urb_enqueue(
1841 unsigned long flags; 1884 unsigned long flags;
1842 struct musb *musb = hcd_to_musb(hcd); 1885 struct musb *musb = hcd_to_musb(hcd);
1843 struct usb_host_endpoint *hep = urb->ep; 1886 struct usb_host_endpoint *hep = urb->ep;
1844 struct musb_qh *qh = hep->hcpriv; 1887 struct musb_qh *qh;
1845 struct usb_endpoint_descriptor *epd = &hep->desc; 1888 struct usb_endpoint_descriptor *epd = &hep->desc;
1846 int ret; 1889 int ret;
1847 unsigned type_reg; 1890 unsigned type_reg;
@@ -1853,22 +1896,21 @@ static int musb_urb_enqueue(
1853 1896
1854 spin_lock_irqsave(&musb->lock, flags); 1897 spin_lock_irqsave(&musb->lock, flags);
1855 ret = usb_hcd_link_urb_to_ep(hcd, urb); 1898 ret = usb_hcd_link_urb_to_ep(hcd, urb);
1899 qh = ret ? NULL : hep->hcpriv;
1900 if (qh)
1901 urb->hcpriv = qh;
1856 spin_unlock_irqrestore(&musb->lock, flags); 1902 spin_unlock_irqrestore(&musb->lock, flags);
1857 if (ret)
1858 return ret;
1859 1903
1860 /* DMA mapping was already done, if needed, and this urb is on 1904 /* DMA mapping was already done, if needed, and this urb is on
1861 * hep->urb_list ... so there's little to do unless hep wasn't 1905 * hep->urb_list now ... so we're done, unless hep wasn't yet
1862 * yet scheduled onto a live qh. 1906 * scheduled onto a live qh.
1863 * 1907 *
1864 * REVISIT best to keep hep->hcpriv valid until the endpoint gets 1908 * REVISIT best to keep hep->hcpriv valid until the endpoint gets
1865 * disabled, testing for empty qh->ring and avoiding qh setup costs 1909 * disabled, testing for empty qh->ring and avoiding qh setup costs
1866 * except for the first urb queued after a config change. 1910 * except for the first urb queued after a config change.
1867 */ 1911 */
1868 if (qh) { 1912 if (qh || ret)
1869 urb->hcpriv = qh; 1913 return ret;
1870 return 0;
1871 }
1872 1914
1873 /* Allocate and initialize qh, minimizing the work done each time 1915 /* Allocate and initialize qh, minimizing the work done each time
1874 * hw_ep gets reprogrammed, or with irqs blocked. Then schedule it. 1916 * hw_ep gets reprogrammed, or with irqs blocked. Then schedule it.
@@ -2044,7 +2086,7 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh, int is_in)
2044 * endpoint's irq status here to avoid bogus irqs. 2086 * endpoint's irq status here to avoid bogus irqs.
2045 * clearing that status is platform-specific... 2087 * clearing that status is platform-specific...
2046 */ 2088 */
2047 } else { 2089 } else if (ep->epnum) {
2048 musb_h_tx_flush_fifo(ep); 2090 musb_h_tx_flush_fifo(ep);
2049 csr = musb_readw(epio, MUSB_TXCSR); 2091 csr = musb_readw(epio, MUSB_TXCSR);
2050 csr &= ~(MUSB_TXCSR_AUTOSET 2092 csr &= ~(MUSB_TXCSR_AUTOSET
@@ -2058,6 +2100,8 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh, int is_in)
2058 musb_writew(epio, MUSB_TXCSR, csr); 2100 musb_writew(epio, MUSB_TXCSR, csr);
2059 /* flush cpu writebuffer */ 2101 /* flush cpu writebuffer */
2060 csr = musb_readw(epio, MUSB_TXCSR); 2102 csr = musb_readw(epio, MUSB_TXCSR);
2103 } else {
2104 musb_h_ep0_flush_fifo(ep);
2061 } 2105 }
2062 if (status == 0) 2106 if (status == 0)
2063 musb_advance_schedule(ep->musb, urb, ep, is_in); 2107 musb_advance_schedule(ep->musb, urb, ep, is_in);
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 8662e9e159c3..5e83f96d6b77 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -195,30 +195,32 @@ static int dma_channel_abort(struct dma_channel *channel)
195 void __iomem *mbase = musb_channel->controller->base; 195 void __iomem *mbase = musb_channel->controller->base;
196 196
197 u8 bchannel = musb_channel->idx; 197 u8 bchannel = musb_channel->idx;
198 int offset;
198 u16 csr; 199 u16 csr;
199 200
200 if (channel->status == MUSB_DMA_STATUS_BUSY) { 201 if (channel->status == MUSB_DMA_STATUS_BUSY) {
201 if (musb_channel->transmit) { 202 if (musb_channel->transmit) {
202 203 offset = MUSB_EP_OFFSET(musb_channel->epnum,
203 csr = musb_readw(mbase, 204 MUSB_TXCSR);
204 MUSB_EP_OFFSET(musb_channel->epnum, 205
205 MUSB_TXCSR)); 206 /*
206 csr &= ~(MUSB_TXCSR_AUTOSET | 207 * The programming guide says that we must clear
207 MUSB_TXCSR_DMAENAB | 208 * the DMAENAB bit before the DMAMODE bit...
208 MUSB_TXCSR_DMAMODE); 209 */
209 musb_writew(mbase, 210 csr = musb_readw(mbase, offset);
210 MUSB_EP_OFFSET(musb_channel->epnum, MUSB_TXCSR), 211 csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAENAB);
211 csr); 212 musb_writew(mbase, offset, csr);
213 csr &= ~MUSB_TXCSR_DMAMODE;
214 musb_writew(mbase, offset, csr);
212 } else { 215 } else {
213 csr = musb_readw(mbase, 216 offset = MUSB_EP_OFFSET(musb_channel->epnum,
214 MUSB_EP_OFFSET(musb_channel->epnum, 217 MUSB_RXCSR);
215 MUSB_RXCSR)); 218
219 csr = musb_readw(mbase, offset);
216 csr &= ~(MUSB_RXCSR_AUTOCLEAR | 220 csr &= ~(MUSB_RXCSR_AUTOCLEAR |
217 MUSB_RXCSR_DMAENAB | 221 MUSB_RXCSR_DMAENAB |
218 MUSB_RXCSR_DMAMODE); 222 MUSB_RXCSR_DMAMODE);
219 musb_writew(mbase, 223 musb_writew(mbase, offset, csr);
220 MUSB_EP_OFFSET(musb_channel->epnum, MUSB_RXCSR),
221 csr);
222 } 224 }
223 225
224 musb_writew(mbase, 226 musb_writew(mbase,
@@ -296,20 +298,28 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data)
296 && ((channel->desired_mode == 0) 298 && ((channel->desired_mode == 0)
297 || (channel->actual_len & 299 || (channel->actual_len &
298 (musb_channel->max_packet_sz - 1))) 300 (musb_channel->max_packet_sz - 1)))
299 ) { 301 ) {
302 u8 epnum = musb_channel->epnum;
303 int offset = MUSB_EP_OFFSET(epnum,
304 MUSB_TXCSR);
305 u16 txcsr;
306
307 /*
308 * The programming guide says that we
309 * must clear DMAENAB before DMAMODE.
310 */
311 musb_ep_select(mbase, epnum);
312 txcsr = musb_readw(mbase, offset);
313 txcsr &= ~(MUSB_TXCSR_DMAENAB
314 | MUSB_TXCSR_AUTOSET);
315 musb_writew(mbase, offset, txcsr);
300 /* Send out the packet */ 316 /* Send out the packet */
301 musb_ep_select(mbase, 317 txcsr &= ~MUSB_TXCSR_DMAMODE;
302 musb_channel->epnum); 318 txcsr |= MUSB_TXCSR_TXPKTRDY;
303 musb_writew(mbase, MUSB_EP_OFFSET( 319 musb_writew(mbase, offset, txcsr);
304 musb_channel->epnum,
305 MUSB_TXCSR),
306 MUSB_TXCSR_TXPKTRDY);
307 } else {
308 musb_dma_completion(
309 musb,
310 musb_channel->epnum,
311 musb_channel->transmit);
312 } 320 }
321 musb_dma_completion(musb, musb_channel->epnum,
322 musb_channel->transmit);
313 } 323 }
314 } 324 }
315 } 325 }
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index dcc87aaa8628..8100f1d25904 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -668,6 +668,7 @@ static struct usb_device_id id_table_combined [] = {
668 { USB_DEVICE(DE_VID, WHT_PID) }, 668 { USB_DEVICE(DE_VID, WHT_PID) },
669 { USB_DEVICE(ADI_VID, ADI_GNICE_PID), 669 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
670 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, 670 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
671 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
671 { }, /* Optional parameter entry */ 672 { }, /* Optional parameter entry */
672 { } /* Terminating entry */ 673 { } /* Terminating entry */
673}; 674};
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index daaf63db0b50..c09f658a448b 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -913,6 +913,13 @@
913#define ADI_GNICE_PID 0xF000 913#define ADI_GNICE_PID 0xF000
914 914
915/* 915/*
916 * JETI SPECTROMETER SPECBOS 1201
917 * http://www.jeti.com/products/sys/scb/scb1201.php
918 */
919#define JETI_VID 0x0c6c
920#define JETI_SPC1201_PID 0x04b2
921
922/*
916 * BmRequestType: 1100 0000b 923 * BmRequestType: 1100 0000b
917 * bRequest: FTDI_E2_READ 924 * bRequest: FTDI_E2_READ
918 * wValue: 0 925 * wValue: 0
diff --git a/drivers/usb/serial/moto_modem.c b/drivers/usb/serial/moto_modem.c
index 2e8e05462ef7..b66b71ccd12b 100644
--- a/drivers/usb/serial/moto_modem.c
+++ b/drivers/usb/serial/moto_modem.c
@@ -25,6 +25,7 @@ static struct usb_device_id id_table [] = {
25 { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */ 25 { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */
26 { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */ 26 { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */
27 { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */ 27 { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */
28 { USB_DEVICE(0x22b8, 0x2c64) }, /* Motorola V950 phone */
28 { }, 29 { },
29}; 30};
30MODULE_DEVICE_TABLE(usb, id_table); 31MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index d560c0b54e6e..47bd070f24b7 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -300,6 +300,10 @@ static int option_resume(struct usb_serial *serial);
300#define BENQ_VENDOR_ID 0x04a5 300#define BENQ_VENDOR_ID 0x04a5
301#define BENQ_PRODUCT_H10 0x4068 301#define BENQ_PRODUCT_H10 0x4068
302 302
303#define DLINK_VENDOR_ID 0x1186
304#define DLINK_PRODUCT_DWM_652 0x3e04
305
306
303static struct usb_device_id option_ids[] = { 307static struct usb_device_id option_ids[] = {
304 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, 308 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
305 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, 309 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -516,6 +520,7 @@ static struct usb_device_id option_ids[] = {
516 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) }, 520 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
517 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) }, 521 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
518 { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) }, 522 { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
523 { USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
519 { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */ 524 { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
520 { } /* Terminating entry */ 525 { } /* Terminating entry */
521}; 526};
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index e6d6b0c17fd9..7528b8d57f1c 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -26,6 +26,27 @@ static struct usb_device_id id_table[] = {
26 {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 26 {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
27 {USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 27 {USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
28 {USB_DEVICE(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ 28 {USB_DEVICE(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
29 {USB_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
30 {USB_DEVICE(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
31 {USB_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
32 {USB_DEVICE(0x413c, 0x8171)}, /* Dell Gobi QDL device */
33 {USB_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
34 {USB_DEVICE(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
35 {USB_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
36 {USB_DEVICE(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
37 {USB_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
38 {USB_DEVICE(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
39 {USB_DEVICE(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
40 {USB_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
41 {USB_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
42 {USB_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
43 {USB_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
44 {USB_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
45 {USB_DEVICE(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
46 {USB_DEVICE(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
47 {USB_DEVICE(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
48 {USB_DEVICE(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
49 {USB_DEVICE(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
29 { } /* Terminating entry */ 50 { } /* Terminating entry */
30}; 51};
31MODULE_DEVICE_TABLE(usb, id_table); 52MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
index 5be54c019662..ef7e5a8ceab5 100644
--- a/drivers/usb/storage/Makefile
+++ b/drivers/usb/storage/Makefile
@@ -17,7 +17,8 @@ usb-storage-objs := scsiglue.o protocol.o transport.o usb.o \
17ifeq ($(CONFIG_USB_LIBUSUAL),) 17ifeq ($(CONFIG_USB_LIBUSUAL),)
18 usb-storage-objs += usual-tables.o 18 usb-storage-objs += usual-tables.o
19else 19else
20 obj-$(CONFIG_USB) += libusual.o usual-tables.o 20 obj-$(CONFIG_USB) += usb-libusual.o
21 usb-libusual-objs := libusual.o usual-tables.o
21endif 22endif
22 23
23obj-$(CONFIG_USB_STORAGE_ALAUDA) += ums-alauda.o 24obj-$(CONFIG_USB_STORAGE_ALAUDA) += ums-alauda.o
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 49aedb36dc19..fcb320217218 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -247,10 +247,8 @@ int usb_stor_clear_halt(struct us_data *us, unsigned int pipe)
247 USB_ENDPOINT_HALT, endp, 247 USB_ENDPOINT_HALT, endp,
248 NULL, 0, 3*HZ); 248 NULL, 0, 3*HZ);
249 249
250 /* reset the endpoint toggle */
251 if (result >= 0) 250 if (result >= 0)
252 usb_settoggle(us->pusb_dev, usb_pipeendpoint(pipe), 251 usb_reset_endpoint(us->pusb_dev, endp);
253 usb_pipeout(pipe), 0);
254 252
255 US_DEBUGP("%s: result = %d\n", __func__, result); 253 US_DEBUGP("%s: result = %d\n", __func__, result);
256 return result; 254 return result;
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 1c1f643e8a78..96db479d1165 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -975,12 +975,14 @@ UNUSUAL_DEV( 0x07c4, 0xa400, 0x0000, 0xffff,
975 US_SC_DEVICE, US_PR_DEVICE, NULL, 975 US_SC_DEVICE, US_PR_DEVICE, NULL,
976 US_FL_FIX_INQUIRY | US_FL_FIX_CAPACITY ), 976 US_FL_FIX_INQUIRY | US_FL_FIX_CAPACITY ),
977 977
978/* Reported by Rauch Wolke <rauchwolke@gmx.net> */ 978/* Reported by Rauch Wolke <rauchwolke@gmx.net>
979 * and augmented by binbin <binbinsh@gmail.com> (Bugzilla #12882)
980 */
979UNUSUAL_DEV( 0x07c4, 0xa4a5, 0x0000, 0xffff, 981UNUSUAL_DEV( 0x07c4, 0xa4a5, 0x0000, 0xffff,
980 "Simple Tech/Datafab", 982 "Simple Tech/Datafab",
981 "CF+SM Reader", 983 "CF+SM Reader",
982 US_SC_DEVICE, US_PR_DEVICE, NULL, 984 US_SC_DEVICE, US_PR_DEVICE, NULL,
983 US_FL_IGNORE_RESIDUE ), 985 US_FL_IGNORE_RESIDUE | US_FL_MAX_SECTORS_64 ),
984 986
985/* Casio QV 2x00/3x00/4000/8000 digital still cameras are not conformant 987/* Casio QV 2x00/3x00/4000/8000 digital still cameras are not conformant
986 * to the USB storage specification in two ways: 988 * to the USB storage specification in two ways:
@@ -1376,6 +1378,14 @@ UNUSUAL_DEV( 0x10d6, 0x2200, 0x0100, 0x0100,
1376 US_SC_DEVICE, US_PR_DEVICE, NULL, 1378 US_SC_DEVICE, US_PR_DEVICE, NULL,
1377 0), 1379 0),
1378 1380
1381/* Reported by Pascal Terjan <pterjan@mandriva.com>
1382 * Ignore driver CD mode and force into modem mode by default.
1383 */
1384UNUSUAL_DEV( 0x1186, 0x3e04, 0x0000, 0x0000,
1385 "D-Link",
1386 "USB Mass Storage",
1387 US_SC_DEVICE, US_PR_DEVICE, option_ms_init, 0),
1388
1379/* Reported by Kevin Lloyd <linux@sierrawireless.com> 1389/* Reported by Kevin Lloyd <linux@sierrawireless.com>
1380 * Entry is needed for the initializer function override, 1390 * Entry is needed for the initializer function override,
1381 * which instructs the device to load as a modem 1391 * which instructs the device to load as a modem
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 386eaa22d215..4ac4300a3f9a 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -267,6 +267,8 @@ static void wusbhc_devconnect_acked_work(struct work_struct *work)
267 mutex_lock(&wusbhc->mutex); 267 mutex_lock(&wusbhc->mutex);
268 wusbhc_devconnect_acked(wusbhc, wusb_dev); 268 wusbhc_devconnect_acked(wusbhc, wusb_dev);
269 mutex_unlock(&wusbhc->mutex); 269 mutex_unlock(&wusbhc->mutex);
270
271 wusb_dev_put(wusb_dev);
270} 272}
271 273
272/* 274/*
@@ -396,7 +398,8 @@ static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc,
396 398
397 /* After a device disconnects, change the GTK (see [WUSB] 399 /* After a device disconnects, change the GTK (see [WUSB]
398 * section 6.2.11.2). */ 400 * section 6.2.11.2). */
399 wusbhc_gtk_rekey(wusbhc); 401 if (wusbhc->active)
402 wusbhc_gtk_rekey(wusbhc);
400 403
401 /* The Wireless USB part has forgotten about the device already; now 404 /* The Wireless USB part has forgotten about the device already; now
402 * khubd's timer will pick up the disconnection and remove the USB 405 * khubd's timer will pick up the disconnection and remove the USB
@@ -1084,15 +1087,21 @@ error_mmcie_set:
1084 * wusbhc_devconnect_stop - stop managing connected devices 1087 * wusbhc_devconnect_stop - stop managing connected devices
1085 * @wusbhc: the WUSB HC 1088 * @wusbhc: the WUSB HC
1086 * 1089 *
1087 * Removes the Host Info IE and stops the keep alives. 1090 * Disconnects any devices still connected, stops the keep alives and
1088 * 1091 * removes the Host Info IE.
1089 * FIXME: should this disconnect all devices?
1090 */ 1092 */
1091void wusbhc_devconnect_stop(struct wusbhc *wusbhc) 1093void wusbhc_devconnect_stop(struct wusbhc *wusbhc)
1092{ 1094{
1093 cancel_delayed_work_sync(&wusbhc->keep_alive_timer); 1095 int i;
1094 WARN_ON(!list_empty(&wusbhc->cack_list));
1095 1096
1097 mutex_lock(&wusbhc->mutex);
1098 for (i = 0; i < wusbhc->ports_max; i++) {
1099 if (wusbhc->port[i].wusb_dev)
1100 __wusbhc_dev_disconnect(wusbhc, &wusbhc->port[i]);
1101 }
1102 mutex_unlock(&wusbhc->mutex);
1103
1104 cancel_delayed_work_sync(&wusbhc->keep_alive_timer);
1096 wusbhc_mmcie_rm(wusbhc, &wusbhc->wuie_host_info->hdr); 1105 wusbhc_mmcie_rm(wusbhc, &wusbhc->wuie_host_info->hdr);
1097 kfree(wusbhc->wuie_host_info); 1106 kfree(wusbhc->wuie_host_info);
1098 wusbhc->wuie_host_info = NULL; 1107 wusbhc->wuie_host_info = NULL;
diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c
index 07c63a31c799..ee6256f23636 100644
--- a/drivers/usb/wusbcore/wusbhc.c
+++ b/drivers/usb/wusbcore/wusbhc.c
@@ -88,33 +88,31 @@ static DEVICE_ATTR(wusb_trust_timeout, 0644, wusb_trust_timeout_show,
88 wusb_trust_timeout_store); 88 wusb_trust_timeout_store);
89 89
90/* 90/*
91 * Show & store the current WUSB CHID 91 * Show the current WUSB CHID.
92 */ 92 */
93static ssize_t wusb_chid_show(struct device *dev, 93static ssize_t wusb_chid_show(struct device *dev,
94 struct device_attribute *attr, char *buf) 94 struct device_attribute *attr, char *buf)
95{ 95{
96 struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); 96 struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev);
97 const struct wusb_ckhdid *chid;
97 ssize_t result = 0; 98 ssize_t result = 0;
98 99
99 if (wusbhc->wuie_host_info != NULL) 100 if (wusbhc->wuie_host_info != NULL)
100 result += ckhdid_printf(buf, PAGE_SIZE, 101 chid = &wusbhc->wuie_host_info->CHID;
101 &wusbhc->wuie_host_info->CHID); 102 else
103 chid = &wusb_ckhdid_zero;
104
105 result += ckhdid_printf(buf, PAGE_SIZE, chid);
106 result += sprintf(buf + result, "\n");
107
102 return result; 108 return result;
103} 109}
104 110
105/* 111/*
106 * Store a new CHID 112 * Store a new CHID.
107 *
108 * This will (FIXME) trigger many changes.
109 *
110 * - Send an all zeros CHID and it will stop the controller
111 * - Send a non-zero CHID and it will start it
112 * (unless it was started, it will just change the CHID,
113 * diconnecting all devices first).
114 * 113 *
115 * So first we scan the MMC we are sent and then we act on it. We 114 * - Write an all zeros CHID and it will stop the controller
116 * read it in the same format as we print it, an ASCII string of 16 115 * - Write a non-zero CHID and it will start it.
117 * hex bytes.
118 * 116 *
119 * See wusbhc_chid_set() for more info. 117 * See wusbhc_chid_set() for more info.
120 */ 118 */
@@ -339,13 +337,15 @@ void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, int status)
339{ 337{
340 struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); 338 struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev);
341 339
342 if (status == 0) { 340 if (status == 0 && wusb_dev) {
343 wusb_dev->entry_ts = jiffies; 341 wusb_dev->entry_ts = jiffies;
344 342
345 /* wusbhc_devconnect_acked() can't be called from from 343 /* wusbhc_devconnect_acked() can't be called from
346 atomic context so defer it to a work queue. */ 344 atomic context so defer it to a work queue. */
347 if (!list_empty(&wusb_dev->cack_node)) 345 if (!list_empty(&wusb_dev->cack_node))
348 queue_work(wusbd, &wusb_dev->devconnect_acked_work); 346 queue_work(wusbd, &wusb_dev->devconnect_acked_work);
347 else
348 wusb_dev_put(wusb_dev);
349 } 349 }
350 350
351 usb_hcd_giveback_urb(&wusbhc->usb_hcd, urb, status); 351 usb_hcd_giveback_urb(&wusbhc->usb_hcd, urb, status);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index c6b2ab41b908..3aa2cd1f8d08 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1387,6 +1387,7 @@ extern int usb_string(struct usb_device *dev, int index,
1387extern int usb_clear_halt(struct usb_device *dev, int pipe); 1387extern int usb_clear_halt(struct usb_device *dev, int pipe);
1388extern int usb_reset_configuration(struct usb_device *dev); 1388extern int usb_reset_configuration(struct usb_device *dev);
1389extern int usb_set_interface(struct usb_device *dev, int ifnum, int alternate); 1389extern int usb_set_interface(struct usb_device *dev, int ifnum, int alternate);
1390extern void usb_reset_endpoint(struct usb_device *dev, unsigned int epaddr);
1390 1391
1391/* this request isn't really synchronous, but it belongs with the others */ 1392/* this request isn't really synchronous, but it belongs with the others */
1392extern int usb_driver_set_configuration(struct usb_device *udev, int config); 1393extern int usb_driver_set_configuration(struct usb_device *udev, int config);
@@ -1491,14 +1492,6 @@ void usb_sg_wait(struct usb_sg_request *io);
1491#define usb_pipecontrol(pipe) (usb_pipetype((pipe)) == PIPE_CONTROL) 1492#define usb_pipecontrol(pipe) (usb_pipetype((pipe)) == PIPE_CONTROL)
1492#define usb_pipebulk(pipe) (usb_pipetype((pipe)) == PIPE_BULK) 1493#define usb_pipebulk(pipe) (usb_pipetype((pipe)) == PIPE_BULK)
1493 1494
1494/* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */
1495#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1)
1496#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep)))
1497#define usb_settoggle(dev, ep, out, bit) \
1498 ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \
1499 ((bit) << (ep)))
1500
1501
1502static inline unsigned int __create_pipe(struct usb_device *dev, 1495static inline unsigned int __create_pipe(struct usb_device *dev,
1503 unsigned int endpoint) 1496 unsigned int endpoint)
1504{ 1497{
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-20 20:46:53 -0500