diff options
author | David S. Miller <davem@davemloft.net> | 2008-06-10 01:54:31 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-06-10 01:54:31 -0700 |
commit | 788c0a53164c05c5ccdb1472474372b72ba74644 (patch) | |
tree | 5f274102e3dc4bcca6cb3a695aa2c8228ad5fc4f /drivers/net/wireless/zd1211rw | |
parent | e64bda89b8fe81cce9b4a20885d2c204c2d52532 (diff) | |
parent | 78cf07472f0ede8394bacc4bc02354505080cfe1 (diff) | |
download | op-kernel-dev-788c0a53164c05c5ccdb1472474372b72ba74644.zip op-kernel-dev-788c0a53164c05c5ccdb1472474372b72ba74644.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:
drivers/net/ps3_gelic_wireless.c
drivers/net/wireless/libertas/main.c
Diffstat (limited to 'drivers/net/wireless/zd1211rw')
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 161 | ||||
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.h | 16 | ||||
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_usb.c | 29 |
3 files changed, 64 insertions, 142 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index c99d4a4..d2378d0 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -224,36 +224,6 @@ out: return r; } -/** - * clear_tx_skb_control_block - clears the control block of tx skbuffs - * @skb: a &struct sk_buff pointer - * - * This clears the control block of skbuff buffers, which were transmitted to - * the device. Notify that the function is not thread-safe, so prevent - * multiple calls. - */ -static void clear_tx_skb_control_block(struct sk_buff *skb) -{ - struct zd_tx_skb_control_block *cb = - (struct zd_tx_skb_control_block *)skb->cb; - - kfree(cb->control); - cb->control = NULL; -} - -/** - * kfree_tx_skb - frees a tx skbuff - * @skb: a &struct sk_buff pointer - * - * Frees the tx skbuff. Frees also the allocated control structure in the - * control block if necessary. - */ -static void kfree_tx_skb(struct sk_buff *skb) -{ - clear_tx_skb_control_block(skb); - dev_kfree_skb_any(skb); -} - static void zd_op_stop(struct ieee80211_hw *hw) { struct zd_mac *mac = zd_hw_mac(hw); @@ -276,40 +246,15 @@ static void zd_op_stop(struct ieee80211_hw *hw) while ((skb = skb_dequeue(ack_wait_queue))) - kfree_tx_skb(skb); -} - -/** - * init_tx_skb_control_block - initializes skb control block - * @skb: a &sk_buff pointer - * @dev: pointer to the mac80221 device - * @control: mac80211 tx control applying for the frame in @skb - * - * Initializes the control block of the skbuff to be transmitted. - */ -static int init_tx_skb_control_block(struct sk_buff *skb, - struct ieee80211_hw *hw, - struct ieee80211_tx_control *control) -{ - struct zd_tx_skb_control_block *cb = - (struct zd_tx_skb_control_block *)skb->cb; - - ZD_ASSERT(sizeof(*cb) <= sizeof(skb->cb)); - memset(cb, 0, sizeof(*cb)); - cb->hw= hw; - cb->control = kmalloc(sizeof(*control), GFP_ATOMIC); - if (cb->control == NULL) - return -ENOMEM; - memcpy(cb->control, control, sizeof(*control)); - - return 0; + dev_kfree_skb_any(skb); } /** * tx_status - reports tx status of a packet if required * @hw - a &struct ieee80211_hw pointer * @skb - a sk-buffer - * @status - the tx status of the packet without control information + * @flags: extra flags to set in the TX status info + * @ackssi: ACK signal strength * @success - True for successfull transmission of the frame * * This information calls ieee80211_tx_status_irqsafe() if required by the @@ -319,18 +264,17 @@ static int init_tx_skb_control_block(struct sk_buff *skb, * If no status information has been requested, the skb is freed. */ static void tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_status *status, - bool success) + u32 flags, int ackssi, bool success) { - struct zd_tx_skb_control_block *cb = (struct zd_tx_skb_control_block *) - skb->cb; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + memset(&info->status, 0, sizeof(info->status)); - ZD_ASSERT(cb->control != NULL); - memcpy(&status->control, cb->control, sizeof(status->control)); if (!success) - status->excessive_retries = 1; - clear_tx_skb_control_block(skb); - ieee80211_tx_status_irqsafe(hw, skb, status); + info->status.excessive_retries = 1; + info->flags |= flags; + info->status.ack_signal = ackssi; + ieee80211_tx_status_irqsafe(hw, skb); } /** @@ -345,15 +289,12 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) { struct sk_buff_head *q = &zd_hw_mac(hw)->ack_wait_queue; struct sk_buff *skb; - struct ieee80211_tx_status status; skb = skb_dequeue(q); if (skb == NULL) return; - memset(&status, 0, sizeof(status)); - - tx_status(hw, skb, &status, 0); + tx_status(hw, skb, 0, 0, 0); } /** @@ -368,28 +309,20 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) */ void zd_mac_tx_to_dev(struct sk_buff *skb, int error) { - struct zd_tx_skb_control_block *cb = - (struct zd_tx_skb_control_block *)skb->cb; - struct ieee80211_hw *hw = cb->hw; - - if (likely(cb->control)) { - skb_pull(skb, sizeof(struct zd_ctrlset)); - if (unlikely(error || - (cb->control->flags & IEEE80211_TXCTL_NO_ACK))) - { - struct ieee80211_tx_status status; - memset(&status, 0, sizeof(status)); - tx_status(hw, skb, &status, !error); - } else { - struct sk_buff_head *q = - &zd_hw_mac(hw)->ack_wait_queue; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hw *hw = info->driver_data[0]; - skb_queue_tail(q, skb); - while (skb_queue_len(q) > ZD_MAC_MAX_ACK_WAITERS) - zd_mac_tx_failed(hw); - } + skb_pull(skb, sizeof(struct zd_ctrlset)); + if (unlikely(error || + (info->flags & IEEE80211_TX_CTL_NO_ACK))) { + tx_status(hw, skb, 0, 0, !error); } else { - kfree_tx_skb(skb); + struct sk_buff_head *q = + &zd_hw_mac(hw)->ack_wait_queue; + + skb_queue_tail(q, skb); + while (skb_queue_len(q) > ZD_MAC_MAX_ACK_WAITERS) + zd_mac_tx_failed(hw); } } @@ -454,7 +387,7 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, cs->control = 0; /* First fragment */ - if (flags & IEEE80211_TXCTL_FIRST_FRAGMENT) + if (flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) cs->control |= ZD_CS_NEED_RANDOM_BACKOFF; /* Multicast */ @@ -466,10 +399,10 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, (IEEE80211_FTYPE_CTL|IEEE80211_STYPE_PSPOLL)) cs->control |= ZD_CS_PS_POLL_FRAME; - if (flags & IEEE80211_TXCTL_USE_RTS_CTS) + if (flags & IEEE80211_TX_CTL_USE_RTS_CTS) cs->control |= ZD_CS_RTS; - if (flags & IEEE80211_TXCTL_USE_CTS_PROTECT) + if (flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) cs->control |= ZD_CS_SELF_CTS; /* FIXME: Management frame? */ @@ -516,25 +449,28 @@ void zd_mac_config_beacon(struct ieee80211_hw *hw, struct sk_buff *beacon) } static int fill_ctrlset(struct zd_mac *mac, - struct sk_buff *skb, - struct ieee80211_tx_control *control) + struct sk_buff *skb) { int r; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; unsigned int frag_len = skb->len + FCS_LEN; unsigned int packet_length; + struct ieee80211_rate *txrate; struct zd_ctrlset *cs = (struct zd_ctrlset *) skb_push(skb, sizeof(struct zd_ctrlset)); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); ZD_ASSERT(frag_len <= 0xffff); - cs->modulation = control->tx_rate->hw_value; - if (control->flags & IEEE80211_TXCTL_SHORT_PREAMBLE) - cs->modulation = control->tx_rate->hw_value_short; + txrate = ieee80211_get_tx_rate(mac->hw, info); + + cs->modulation = txrate->hw_value; + if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + cs->modulation = txrate->hw_value_short; cs->tx_length = cpu_to_le16(frag_len); - cs_set_control(mac, cs, hdr, control->flags); + cs_set_control(mac, cs, hdr, info->flags); packet_length = frag_len + sizeof(struct zd_ctrlset) + 10; ZD_ASSERT(packet_length <= 0xffff); @@ -579,24 +515,21 @@ static int fill_ctrlset(struct zd_mac *mac, * control block of the skbuff will be initialized. If necessary the incoming * mac80211 queues will be stopped. */ -static int zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control) +static int zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct zd_mac *mac = zd_hw_mac(hw); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int r; - r = fill_ctrlset(mac, skb, control); + r = fill_ctrlset(mac, skb); if (r) return r; - r = init_tx_skb_control_block(skb, hw, control); - if (r) - return r; + info->driver_data[0] = hw; + r = zd_usb_tx(&mac->chip.usb, skb); - if (r) { - clear_tx_skb_control_block(skb); + if (r) return r; - } return 0; } @@ -634,13 +567,8 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr, tx_hdr = (struct ieee80211_hdr *)skb->data; if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1))) { - struct ieee80211_tx_status status; - - memset(&status, 0, sizeof(status)); - status.flags = IEEE80211_TX_STATUS_ACK; - status.ack_signal = stats->signal; __skb_unlink(skb, q); - tx_status(hw, skb, &status, 1); + tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1); goto out; } } @@ -944,8 +872,7 @@ static void zd_op_bss_info_changed(struct ieee80211_hw *hw, } static int zd_op_beacon_update(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_control *ctl) + struct sk_buff *skb) { struct zd_mac *mac = zd_hw_mac(hw); zd_mac_config_beacon(hw, skb); diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h index 7117024..18c1d56 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.h +++ b/drivers/net/wireless/zd1211rw/zd_mac.h @@ -149,22 +149,6 @@ struct housekeeping { struct delayed_work link_led_work; }; -/** - * struct zd_tx_skb_control_block - control block for tx skbuffs - * @control: &struct ieee80211_tx_control pointer - * @context: context pointer - * - * This structure is used to fill the cb field in an &sk_buff to transmit. - * The control field is NULL, if there is no requirement from the mac80211 - * stack to report about the packet ACK. This is the case if the flag - * IEEE80211_TXCTL_NO_ACK is not set in &struct ieee80211_tx_control. - */ -struct zd_tx_skb_control_block { - struct ieee80211_tx_control *control; - struct ieee80211_hw *hw; - void *context; -}; - #define ZD_MAC_STATS_BUFFER_SIZE 16 #define ZD_MAC_MAX_ACK_WAITERS 10 diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index 8941f5e..1ccff24 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -169,10 +169,11 @@ static int upload_code(struct usb_device *udev, if (flags & REBOOT) { u8 ret; + /* Use "DMA-aware" buffer. */ r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), USB_REQ_FIRMWARE_CONFIRM, USB_DIR_IN | USB_TYPE_VENDOR, - 0, 0, &ret, sizeof(ret), 5000 /* ms */); + 0, 0, p, sizeof(ret), 5000 /* ms */); if (r != sizeof(ret)) { dev_err(&udev->dev, "control request firmeware confirmation failed." @@ -181,6 +182,7 @@ static int upload_code(struct usb_device *udev, r = -ENODEV; goto error; } + ret = p[0]; if (ret & 0x80) { dev_err(&udev->dev, "Internal error while downloading." @@ -312,22 +314,31 @@ int zd_usb_read_fw(struct zd_usb *usb, zd_addr_t addr, u8 *data, u16 len) { int r; struct usb_device *udev = zd_usb_to_usbdev(usb); + u8 *buf; + /* Use "DMA-aware" buffer. */ + buf = kmalloc(len, GFP_KERNEL); + if (!buf) + return -ENOMEM; r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), USB_REQ_FIRMWARE_READ_DATA, USB_DIR_IN | 0x40, addr, 0, - data, len, 5000); + buf, len, 5000); if (r < 0) { dev_err(&udev->dev, "read over firmware interface failed: %d\n", r); - return r; + goto exit; } else if (r != len) { dev_err(&udev->dev, "incomplete read over firmware interface: %d/%d\n", r, len); - return -EIO; + r = -EIO; + goto exit; } - - return 0; + r = 0; + memcpy(data, buf, len); +exit: + kfree(buf); + return r; } #define urb_dev(urb) (&(urb)->dev->dev) @@ -869,7 +880,7 @@ static void tx_urb_complete(struct urb *urb) { int r; struct sk_buff *skb; - struct zd_tx_skb_control_block *cb; + struct ieee80211_tx_info *info; struct zd_usb *usb; switch (urb->status) { @@ -893,8 +904,8 @@ free_urb: * grab 'usb' pointer before handing off the skb (since * it might be freed by zd_mac_tx_to_dev or mac80211) */ - cb = (struct zd_tx_skb_control_block *)skb->cb; - usb = &zd_hw_mac(cb->hw)->chip.usb; + info = IEEE80211_SKB_CB(skb); + usb = &zd_hw_mac(info->driver_data[0])->chip.usb; zd_mac_tx_to_dev(skb, urb->status); free_tx_urb(usb, urb); tx_dec_submitted_urbs(usb); |