diff options
Diffstat (limited to 'drivers/net/wimax/i2400m/usb-fw.c')
| -rw-r--r-- | drivers/net/wimax/i2400m/usb-fw.c | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/drivers/net/wimax/i2400m/usb-fw.c b/drivers/net/wimax/i2400m/usb-fw.c index 5ad287c228b..ce6b9938fde 100644 --- a/drivers/net/wimax/i2400m/usb-fw.c +++ b/drivers/net/wimax/i2400m/usb-fw.c @@ -99,10 +99,10 @@ ssize_t i2400mu_tx_bulk_out(struct i2400mu *i2400mu, void *buf, size_t buf_size) dev_err(dev, "BM-CMD: can't get autopm: %d\n", result); do_autopm = 0; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_BULK_OUT); + epd = usb_get_epd(i2400mu->usb_iface, i2400mu->endpoint_cfg.bulk_out); pipe = usb_sndbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress); retry: - result = usb_bulk_msg(i2400mu->usb_dev, pipe, buf, buf_size, &len, HZ); + result = usb_bulk_msg(i2400mu->usb_dev, pipe, buf, buf_size, &len, 200); switch (result) { case 0: if (len != buf_size) { @@ -113,6 +113,28 @@ retry: } result = len; break; + case -EPIPE: + /* + * Stall -- maybe the device is choking with our + * requests. Clear it and give it some time. If they + * happen to often, it might be another symptom, so we + * reset. + * + * No error handling for usb_clear_halt(0; if it + * works, the retry works; if it fails, this switch + * does the error handling for us. + */ + if (edc_inc(&i2400mu->urb_edc, + 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "BM-CMD: too many stalls in " + "URB; resetting device\n"); + usb_queue_reset_device(i2400mu->usb_iface); + /* fallthrough */ + } else { + usb_clear_halt(i2400mu->usb_dev, pipe); + msleep(10); /* give the device some time */ + goto retry; + } case -EINVAL: /* while removing driver */ case -ENODEV: /* dev disconnect ... */ case -ENOENT: /* just ignore it */ @@ -135,7 +157,6 @@ retry: result); goto retry; } - result = len; if (do_autopm) usb_autopm_put_interface(i2400mu->usb_iface); return result; @@ -172,7 +193,8 @@ ssize_t i2400mu_bus_bm_cmd_send(struct i2400m *i2400m, result = -E2BIG; if (cmd_size > I2400M_BM_CMD_BUF_SIZE) goto error_too_big; - memcpy(i2400m->bm_cmd_buf, _cmd, cmd_size); + if (_cmd != i2400m->bm_cmd_buf) + memmove(i2400m->bm_cmd_buf, _cmd, cmd_size); cmd = i2400m->bm_cmd_buf; if (cmd_size_a > cmd_size) /* Zero pad space */ memset(i2400m->bm_cmd_buf + cmd_size, 0, cmd_size_a - cmd_size); @@ -226,7 +248,8 @@ int i2400mu_notif_submit(struct i2400mu *i2400mu, struct urb *urb, struct usb_endpoint_descriptor *epd; int pipe; - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_NOTIFICATION); + epd = usb_get_epd(i2400mu->usb_iface, + i2400mu->endpoint_cfg.notification); pipe = usb_rcvintpipe(i2400mu->usb_dev, epd->bEndpointAddress); usb_fill_int_urb(urb, i2400mu->usb_dev, pipe, i2400m->bm_ack_buf, I2400M_BM_ACK_BUF_SIZE, @@ -328,8 +351,8 @@ error_dev_gone: out: if (do_autopm) usb_autopm_put_interface(i2400mu->usb_iface); - d_fnend(8, dev, "(i2400m %p ack %p size %zu) = %zd\n", - i2400m, ack, ack_size, result); + d_fnend(8, dev, "(i2400m %p ack %p size %zu) = %ld\n", + i2400m, ack, ack_size, (long) result); return result; error_exceeded: |