diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-13 14:50:18 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-13 14:50:18 -0800 |
commit | d89b218b801fd93ea95880f1c7fde348cbcc51c5 (patch) | |
tree | cd3c34e1811f9b2bc10ecfb957bf26cbd04c677e /drivers/net/wireless/ath/ar9170 | |
parent | 80a186074e72e2cd61f6716d90cf32ce54981a56 (diff) | |
parent | bec68ff1637ca00bb1585a03a7be8a13380084de (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (108 commits)
bridge: ensure to unlock in error path in br_multicast_query().
drivers/net/tulip/eeprom.c: fix bogus "(null)" in tulip init messages
sky2: Avoid rtnl_unlock without rtnl_lock
ipv6: Send netlink notification when DAD fails
drivers/net/tg3.c: change the field used with the TG3_FLAG_10_100_ONLY constant
ipconfig: Handle devices which take some time to come up.
mac80211: Fix memory leak in ieee80211_if_write()
mac80211: Fix (dynamic) power save entry
ipw2200: use kmalloc for large local variables
ath5k: read eeprom IQ calibration values correctly for G mode
ath5k: fix I/Q calibration (for real)
ath5k: fix TSF reset
ath5k: use fixed antenna for tx descriptors
libipw: split ieee->networks into small pieces
mac80211: Fix sta_mtx unlocking on insert STA failure path
rt2x00: remove KSEG1ADDR define from rt2x00soc.h
net: add ColdFire support to the smc91x driver
asix: fix setting mac address for AX88772
ipv6 ip6_tunnel: eliminate unused recursion field from ip6_tnl{}.
net: Fix dev_mc_add()
...
Diffstat (limited to 'drivers/net/wireless/ath/ar9170')
-rw-r--r-- | drivers/net/wireless/ath/ar9170/ar9170.h | 1 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/main.c | 10 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/usb.c | 170 |
3 files changed, 111 insertions, 70 deletions
diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h index 8c8ce67971e..dc662b76a1c 100644 --- a/drivers/net/wireless/ath/ar9170/ar9170.h +++ b/drivers/net/wireless/ath/ar9170/ar9170.h @@ -166,6 +166,7 @@ struct ar9170 { struct ath_common common; struct mutex mutex; enum ar9170_device_state state; + bool registered; unsigned long bad_hw_nagger; int (*open)(struct ar9170 *); diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c index 08dc42da0f6..257c734733d 100644 --- a/drivers/net/wireless/ath/ar9170/main.c +++ b/drivers/net/wireless/ath/ar9170/main.c @@ -2701,7 +2701,8 @@ int ar9170_register(struct ar9170 *ar, struct device *pdev) dev_info(pdev, "Atheros AR9170 is registered as '%s'\n", wiphy_name(ar->hw->wiphy)); - return err; + ar->registered = true; + return 0; err_unreg: ieee80211_unregister_hw(ar->hw); @@ -2712,11 +2713,14 @@ err_out: void ar9170_unregister(struct ar9170 *ar) { + if (ar->registered) { #ifdef CONFIG_AR9170_LEDS - ar9170_unregister_leds(ar); + ar9170_unregister_leds(ar); #endif /* CONFIG_AR9170_LEDS */ - kfree_skb(ar->rx_failover); ieee80211_unregister_hw(ar->hw); + } + + kfree_skb(ar->rx_failover); mutex_destroy(&ar->mutex); } diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c index 0f361186b78..4e30197afff 100644 --- a/drivers/net/wireless/ath/ar9170/usb.c +++ b/drivers/net/wireless/ath/ar9170/usb.c @@ -582,43 +582,6 @@ static int ar9170_usb_upload(struct ar9170_usb *aru, const void *data, return 0; } -static int ar9170_usb_request_firmware(struct ar9170_usb *aru) -{ - int err = 0; - - err = request_firmware(&aru->firmware, "ar9170.fw", - &aru->udev->dev); - if (!err) { - aru->init_values = NULL; - return 0; - } - - if (aru->req_one_stage_fw) { - dev_err(&aru->udev->dev, "ar9170.fw firmware file " - "not found and is required for this device\n"); - return -EINVAL; - } - - dev_err(&aru->udev->dev, "ar9170.fw firmware file " - "not found, trying old firmware...\n"); - - err = request_firmware(&aru->init_values, "ar9170-1.fw", - &aru->udev->dev); - if (err) { - dev_err(&aru->udev->dev, "file with init values not found.\n"); - return err; - } - - err = request_firmware(&aru->firmware, "ar9170-2.fw", &aru->udev->dev); - if (err) { - release_firmware(aru->init_values); - dev_err(&aru->udev->dev, "firmware file not found.\n"); - return err; - } - - return err; -} - static int ar9170_usb_reset(struct ar9170_usb *aru) { int ret, lock = (aru->intf->condition != USB_INTERFACE_BINDING); @@ -757,6 +720,103 @@ err_out: return err; } +static void ar9170_usb_firmware_failed(struct ar9170_usb *aru) +{ + struct device *parent = aru->udev->dev.parent; + + /* unbind anything failed */ + if (parent) + down(&parent->sem); + device_release_driver(&aru->udev->dev); + if (parent) + up(&parent->sem); +} + +static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context) +{ + struct ar9170_usb *aru = context; + int err; + + aru->firmware = fw; + + if (!fw) { + dev_err(&aru->udev->dev, "firmware file not found.\n"); + goto err_freefw; + } + + err = ar9170_usb_init_device(aru); + if (err) + goto err_freefw; + + err = ar9170_usb_open(&aru->common); + if (err) + goto err_unrx; + + err = ar9170_register(&aru->common, &aru->udev->dev); + + ar9170_usb_stop(&aru->common); + if (err) + goto err_unrx; + + return; + + err_unrx: + ar9170_usb_cancel_urbs(aru); + + err_freefw: + ar9170_usb_firmware_failed(aru); +} + +static void ar9170_usb_firmware_inits(const struct firmware *fw, + void *context) +{ + struct ar9170_usb *aru = context; + int err; + + if (!fw) { + dev_err(&aru->udev->dev, "file with init values not found.\n"); + ar9170_usb_firmware_failed(aru); + return; + } + + aru->init_values = fw; + + /* ok so we have the init values -- get code for two-stage */ + + err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-2.fw", + &aru->udev->dev, GFP_KERNEL, aru, + ar9170_usb_firmware_finish); + if (err) + ar9170_usb_firmware_failed(aru); +} + +static void ar9170_usb_firmware_step2(const struct firmware *fw, void *context) +{ + struct ar9170_usb *aru = context; + int err; + + if (fw) { + ar9170_usb_firmware_finish(fw, context); + return; + } + + if (aru->req_one_stage_fw) { + dev_err(&aru->udev->dev, "ar9170.fw firmware file " + "not found and is required for this device\n"); + ar9170_usb_firmware_failed(aru); + return; + } + + dev_err(&aru->udev->dev, "ar9170.fw firmware file " + "not found, trying old firmware...\n"); + + err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-1.fw", + &aru->udev->dev, GFP_KERNEL, aru, + ar9170_usb_firmware_inits); + if (err) + ar9170_usb_firmware_failed(aru); +} + static bool ar9170_requires_one_stage(const struct usb_device_id *id) { if (!id->driver_info) @@ -814,33 +874,9 @@ static int ar9170_usb_probe(struct usb_interface *intf, if (err) goto err_freehw; - err = ar9170_usb_request_firmware(aru); - if (err) - goto err_freehw; - - err = ar9170_usb_init_device(aru); - if (err) - goto err_freefw; - - err = ar9170_usb_open(ar); - if (err) - goto err_unrx; - - err = ar9170_register(ar, &udev->dev); - - ar9170_usb_stop(ar); - if (err) - goto err_unrx; - - return 0; - -err_unrx: - ar9170_usb_cancel_urbs(aru); - -err_freefw: - release_firmware(aru->init_values); - release_firmware(aru->firmware); - + return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw", + &aru->udev->dev, GFP_KERNEL, aru, + ar9170_usb_firmware_step2); err_freehw: usb_set_intfdata(intf, NULL); usb_put_dev(udev); @@ -860,12 +896,12 @@ static void ar9170_usb_disconnect(struct usb_interface *intf) ar9170_unregister(&aru->common); ar9170_usb_cancel_urbs(aru); - release_firmware(aru->init_values); - release_firmware(aru->firmware); - usb_put_dev(aru->udev); usb_set_intfdata(intf, NULL); ieee80211_free_hw(aru->common.hw); + + release_firmware(aru->init_values); + release_firmware(aru->firmware); } #ifdef CONFIG_PM |