Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[safe/jmp/linux-2.6] / drivers / net / wireless / ath / ar9170 / usb.c
index e0138ac..8663660 100644 (file)
  */
 
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/usb.h>
 #include <linux/firmware.h>
 #include <linux/etherdevice.h>
+#include <linux/device.h>
 #include <net/mac80211.h>
 #include "ar9170.h"
 #include "cmd.h"
@@ -64,22 +66,38 @@ static struct usb_device_id ar9170_usb_ids[] = {
        { USB_DEVICE(0x0cf3, 0x9170) },
        /* Atheros TG121N */
        { USB_DEVICE(0x0cf3, 0x1001) },
+       /* TP-Link TL-WN821N v2 */
+       { USB_DEVICE(0x0cf3, 0x1002) },
+       /* 3Com Dual Band 802.11n USB Adapter */
+       { USB_DEVICE(0x0cf3, 0x1010) },
+       /* H3C Dual Band 802.11n USB Adapter */
+       { USB_DEVICE(0x0cf3, 0x1011) },
        /* Cace Airpcap NX */
        { USB_DEVICE(0xcace, 0x0300) },
-       /* D-Link DWA 160A */
+       /* D-Link DWA 160 A1 */
        { USB_DEVICE(0x07d1, 0x3c10) },
+       /* D-Link DWA 160 A2 */
+       { USB_DEVICE(0x07d1, 0x3a09) },
+       /* Netgear WNA1000 */
+       { USB_DEVICE(0x0846, 0x9040) },
        /* Netgear WNDA3100 */
        { USB_DEVICE(0x0846, 0x9010) },
        /* Netgear WN111 v2 */
        { USB_DEVICE(0x0846, 0x9001) },
        /* Zydas ZD1221 */
        { USB_DEVICE(0x0ace, 0x1221) },
+       /* Proxim ORiNOCO 802.11n USB */
+       { USB_DEVICE(0x1435, 0x0804) },
+       /* WNC Generic 11n USB Dongle */
+       { USB_DEVICE(0x1435, 0x0326) },
        /* ZyXEL NWD271N */
        { USB_DEVICE(0x0586, 0x3417) },
        /* Z-Com UB81 BG */
        { USB_DEVICE(0x0cde, 0x0023) },
        /* Z-Com UB82 ABG */
        { USB_DEVICE(0x0cde, 0x0026) },
+       /* Sphairon Homelink 1202 */
+       { USB_DEVICE(0x0cde, 0x0027) },
        /* Arcadyan WN7512 */
        { USB_DEVICE(0x083a, 0xf522) },
        /* Planex GWUS300 */
@@ -88,6 +106,8 @@ static struct usb_device_id ar9170_usb_ids[] = {
        { USB_DEVICE(0x04bb, 0x093f) },
        /* AVM FRITZ!WLAN USB Stick N */
        { USB_DEVICE(0x057C, 0x8401) },
+       /* NEC WL300NU-G */
+       { USB_DEVICE(0x0409, 0x0249) },
        /* AVM FRITZ!WLAN USB Stick N 2.4 */
        { USB_DEVICE(0x057C, 0x8402), .driver_info = AR9170_REQ_FW1_ONLY },
 
@@ -106,15 +126,15 @@ static void ar9170_usb_submit_urb(struct ar9170_usb *aru)
                return ;
 
        spin_lock_irqsave(&aru->tx_urb_lock, flags);
-       if (aru->tx_submitted_urbs >= AR9170_NUM_TX_URBS) {
+       if (atomic_read(&aru->tx_submitted_urbs) >= AR9170_NUM_TX_URBS) {
                spin_unlock_irqrestore(&aru->tx_urb_lock, flags);
                return ;
        }
-       aru->tx_submitted_urbs++;
+       atomic_inc(&aru->tx_submitted_urbs);
 
        urb = usb_get_from_anchor(&aru->tx_pending);
        if (!urb) {
-               aru->tx_submitted_urbs--;
+               atomic_dec(&aru->tx_submitted_urbs);
                spin_unlock_irqrestore(&aru->tx_urb_lock, flags);
 
                return ;
@@ -131,7 +151,7 @@ static void ar9170_usb_submit_urb(struct ar9170_usb *aru)
                                err);
 
                usb_unanchor_urb(urb);
-               aru->tx_submitted_urbs--;
+               atomic_dec(&aru->tx_submitted_urbs);
                ar9170_tx_callback(&aru->common, urb->context);
        }
 
@@ -149,7 +169,7 @@ static void ar9170_usb_tx_urb_complete_frame(struct urb *urb)
                return ;
        }
 
-       aru->tx_submitted_urbs--;
+       atomic_dec(&aru->tx_submitted_urbs);
 
        ar9170_tx_callback(&aru->common, skb);
 
@@ -410,7 +430,7 @@ static int ar9170_usb_exec_cmd(struct ar9170 *ar, enum ar9170_cmd cmd,
        spin_unlock_irqrestore(&aru->common.cmdlock, flags);
 
        usb_fill_int_urb(urb, aru->udev,
-                        usb_sndbulkpipe(aru->udev, AR9170_EP_CMD),
+                        usb_sndintpipe(aru->udev, AR9170_EP_CMD),
                         aru->common.cmdbuf, plen + 4,
                         ar9170_usb_tx_urb_complete, NULL, 1);
 
@@ -576,43 +596,6 @@ 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);
@@ -751,6 +734,109 @@ err_out:
        return err;
 }
 
+static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
+{
+       struct device *parent = aru->udev->dev.parent;
+
+       complete(&aru->firmware_loading_complete);
+
+       /* unbind anything failed */
+       if (parent)
+               device_lock(parent);
+       device_release_driver(&aru->udev->dev);
+       if (parent)
+               device_unlock(parent);
+
+       usb_put_dev(aru->udev);
+}
+
+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;
+
+       complete(&aru->firmware_loading_complete);
+       usb_put_dev(aru->udev);
+       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)
@@ -789,10 +875,11 @@ static int ar9170_usb_probe(struct usb_interface *intf,
        init_usb_anchor(&aru->tx_pending);
        init_usb_anchor(&aru->tx_submitted);
        init_completion(&aru->cmd_wait);
+       init_completion(&aru->firmware_loading_complete);
        spin_lock_init(&aru->tx_urb_lock);
 
        aru->tx_pending_urbs = 0;
-       aru->tx_submitted_urbs = 0;
+       atomic_set(&aru->tx_submitted_urbs, 0);
 
        aru->common.stop = ar9170_usb_stop;
        aru->common.flush = ar9170_usb_flush;
@@ -808,33 +895,10 @@ 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);
-
+       usb_get_dev(aru->udev);
+       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);
@@ -851,15 +915,18 @@ static void ar9170_usb_disconnect(struct usb_interface *intf)
                return;
 
        aru->common.state = AR9170_IDLE;
+
+       wait_for_completion(&aru->firmware_loading_complete);
+
        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