diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/host/whci/asl.c | 9 | ||||
-rw-r--r-- | drivers/usb/host/whci/hw.c | 15 | ||||
-rw-r--r-- | drivers/usb/host/whci/pzl.c | 9 | ||||
-rw-r--r-- | drivers/usb/host/whci/whcd.h | 1 | ||||
-rw-r--r-- | drivers/usb/wusbcore/devconnect.c | 1 | ||||
-rw-r--r-- | drivers/usb/wusbcore/rh.c | 3 | ||||
-rw-r--r-- | drivers/uwb/allocator.c | 1 | ||||
-rw-r--r-- | drivers/uwb/drp.c | 4 | ||||
-rw-r--r-- | drivers/uwb/rsv.c | 21 |
9 files changed, 51 insertions, 13 deletions
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c index 577c0d2..2291c5f 100644 --- a/drivers/usb/host/whci/asl.c +++ b/drivers/usb/host/whci/asl.c @@ -170,12 +170,17 @@ void asl_stop(struct whc *whc) void asl_update(struct whc *whc, uint32_t wusbcmd) { struct wusbhc *wusbhc = &whc->wusbhc; + long t; mutex_lock(&wusbhc->mutex); if (wusbhc->active) { whc_write_wusbcmd(whc, wusbcmd, wusbcmd); - wait_event(whc->async_list_wq, - (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0); + t = wait_event_timeout( + whc->async_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0, + msecs_to_jiffies(1000)); + if (t == 0) + whc_hw_error(whc, "ASL update timeout"); } mutex_unlock(&wusbhc->mutex); } diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c index d498e72..6afa2e3 100644 --- a/drivers/usb/host/whci/hw.c +++ b/drivers/usb/host/whci/hw.c @@ -87,3 +87,18 @@ out: return ret; } + +/** + * whc_hw_error - recover from a hardware error + * @whc: the WHCI HC that broke. + * @reason: a description of the failure. + * + * Recover from broken hardware with a full reset. + */ +void whc_hw_error(struct whc *whc, const char *reason) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + + dev_err(&whc->umc->dev, "hardware error: %s\n", reason); + wusbhc_reset_all(wusbhc); +} diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index 2ae5abf..7dc85a0 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -183,12 +183,17 @@ void pzl_stop(struct whc *whc) void pzl_update(struct whc *whc, uint32_t wusbcmd) { struct wusbhc *wusbhc = &whc->wusbhc; + long t; mutex_lock(&wusbhc->mutex); if (wusbhc->active) { whc_write_wusbcmd(whc, wusbcmd, wusbcmd); - wait_event(whc->periodic_list_wq, - (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0); + t = wait_event_timeout( + whc->periodic_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0, + msecs_to_jiffies(1000)); + if (t == 0) + whc_hw_error(whc, "PZL update timeout"); } mutex_unlock(&wusbhc->mutex); } diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h index 0f3540f..d3543a1 100644 --- a/drivers/usb/host/whci/whcd.h +++ b/drivers/usb/host/whci/whcd.h @@ -137,6 +137,7 @@ void whc_clean_up(struct whc *whc); /* hw.c */ void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val); int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len); +void whc_hw_error(struct whc *whc, const char *reason); /* wusb.c */ int whc_wusbhc_start(struct wusbhc *wusbhc); diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index e2e7e4b..8e18141 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -386,6 +386,7 @@ static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc, | USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED); port->change |= USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE; if (wusb_dev) { + dev_dbg(wusbhc->dev, "disconnecting device from port %d\n", wusb_dev->port_idx); if (!list_empty(&wusb_dev->cack_node)) list_del_init(&wusb_dev->cack_node); /* For the one in cack_add() */ diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c index 3937bf6..9fe4246 100644 --- a/drivers/usb/wusbcore/rh.c +++ b/drivers/usb/wusbcore/rh.c @@ -100,6 +100,9 @@ static int wusbhc_rh_port_reset(struct wusbhc *wusbhc, u8 port_idx) struct wusb_port *port = wusb_port_by_idx(wusbhc, port_idx); struct wusb_dev *wusb_dev = port->wusb_dev; + if (wusb_dev == NULL) + return -ENOTCONN; + port->status |= USB_PORT_STAT_RESET; port->change |= USB_PORT_STAT_C_RESET; diff --git a/drivers/uwb/allocator.c b/drivers/uwb/allocator.c index c8185e6..c13cec7 100644 --- a/drivers/uwb/allocator.c +++ b/drivers/uwb/allocator.c @@ -15,7 +15,6 @@ * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/version.h> #include <linux/kernel.h> #include <linux/uwb.h> diff --git a/drivers/uwb/drp.c b/drivers/uwb/drp.c index 2b4f940..4f5ca99 100644 --- a/drivers/uwb/drp.c +++ b/drivers/uwb/drp.c @@ -66,14 +66,14 @@ static void uwb_rc_set_drp_cmd_done(struct uwb_rc *rc, void *arg, } else dev_err(&rc->uwb_dev.dev, "SET-DRP-IE: timeout\n"); - spin_lock(&rc->rsvs_lock); + spin_lock_bh(&rc->rsvs_lock); if (rc->set_drp_ie_pending > 1) { rc->set_drp_ie_pending = 0; uwb_rsv_queue_update(rc); } else { rc->set_drp_ie_pending = 0; } - spin_unlock(&rc->rsvs_lock); + spin_unlock_bh(&rc->rsvs_lock); } /** diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c index ec6eecb..6b76f4b 100644 --- a/drivers/uwb/rsv.c +++ b/drivers/uwb/rsv.c @@ -114,7 +114,8 @@ void uwb_rsv_dump(char *text, struct uwb_rsv *rsv) devaddr = rsv->target.devaddr; uwb_dev_addr_print(target, sizeof(target), &devaddr); - dev_dbg(dev, "rsv %s -> %s: %s\n", owner, target, uwb_rsv_state_str(rsv->state)); + dev_dbg(dev, "rsv %s %s -> %s: %s\n", + text, owner, target, uwb_rsv_state_str(rsv->state)); } static void uwb_rsv_release(struct kref *kref) @@ -511,8 +512,7 @@ void uwb_rsv_remove(struct uwb_rsv *rsv) if (uwb_rsv_is_owner(rsv)) uwb_rsv_put_stream(rsv); - - del_timer_sync(&rsv->timer); + uwb_dev_put(rsv->owner); if (rsv->target.type == UWB_RSV_TARGET_DEV) uwb_dev_put(rsv->target.dev); @@ -870,7 +870,7 @@ void uwb_rsv_queue_update(struct uwb_rc *rc) */ void uwb_rsv_sched_update(struct uwb_rc *rc) { - spin_lock(&rc->rsvs_lock); + spin_lock_bh(&rc->rsvs_lock); if (!delayed_work_pending(&rc->rsv_update_work)) { if (rc->set_drp_ie_pending > 0) { rc->set_drp_ie_pending++; @@ -879,7 +879,7 @@ void uwb_rsv_sched_update(struct uwb_rc *rc) uwb_rsv_queue_update(rc); } unlock: - spin_unlock(&rc->rsvs_lock); + spin_unlock_bh(&rc->rsvs_lock); } /* @@ -943,13 +943,22 @@ void uwb_rsv_remove_all(struct uwb_rc *rc) mutex_lock(&rc->rsvs_mutex); list_for_each_entry_safe(rsv, t, &rc->reservations, rc_node) { - uwb_rsv_remove(rsv); + if (rsv->state != UWB_RSV_STATE_NONE) + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + del_timer_sync(&rsv->timer); } /* Cancel any postponed update. */ rc->set_drp_ie_pending = 0; mutex_unlock(&rc->rsvs_mutex); cancel_delayed_work_sync(&rc->rsv_update_work); + flush_workqueue(rc->rsv_workq); + + mutex_lock(&rc->rsvs_mutex); + list_for_each_entry_safe(rsv, t, &rc->reservations, rc_node) { + uwb_rsv_remove(rsv); + } + mutex_unlock(&rc->rsvs_mutex); } void uwb_rsv_init(struct uwb_rc *rc) |