diff options
Diffstat (limited to 'drivers/net/wireless/ath')
37 files changed, 3020 insertions, 120 deletions
diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig index 09602241901..c25dcf192fe 100644 --- a/drivers/net/wireless/ath/Kconfig +++ b/drivers/net/wireless/ath/Kconfig @@ -26,5 +26,6 @@ source "drivers/net/wireless/ath/ath5k/Kconfig" source "drivers/net/wireless/ath/ath9k/Kconfig" source "drivers/net/wireless/ath/carl9170/Kconfig" source "drivers/net/wireless/ath/ath6kl/Kconfig" +source "drivers/net/wireless/ath/ar5523/Kconfig" endif diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile index d716b748e57..1e18621326d 100644 --- a/drivers/net/wireless/ath/Makefile +++ b/drivers/net/wireless/ath/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_ATH5K) += ath5k/ obj-$(CONFIG_ATH9K_HW) += ath9k/ obj-$(CONFIG_CARL9170) += carl9170/ obj-$(CONFIG_ATH6KL) += ath6kl/ +obj-$(CONFIG_AR5523) += ar5523/ obj-$(CONFIG_ATH_COMMON) += ath.o diff --git a/drivers/net/wireless/ath/ar5523/Kconfig b/drivers/net/wireless/ath/ar5523/Kconfig new file mode 100644 index 00000000000..11d99ee8de5 --- /dev/null +++ b/drivers/net/wireless/ath/ar5523/Kconfig @@ -0,0 +1,7 @@ +config AR5523 + tristate "Atheros AR5523 wireless driver support" + depends on MAC80211 && USB + select FW_LOADER + ---help--- + This module add support for AR5523 based USB dongles such as D-Link + DWL-G132, Netgear WPN111 and many more. diff --git a/drivers/net/wireless/ath/ar5523/Makefile b/drivers/net/wireless/ath/ar5523/Makefile new file mode 100644 index 00000000000..ebf7f3bf0a3 --- /dev/null +++ b/drivers/net/wireless/ath/ar5523/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_AR5523) := ar5523.o diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c new file mode 100644 index 00000000000..f782b6e502b --- /dev/null +++ b/drivers/net/wireless/ath/ar5523/ar5523.c @@ -0,0 +1,1806 @@ +/* + * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> + * Copyright (c) 2006 Sam Leffler, Errno Consulting + * Copyright (c) 2007 Christoph Hellwig <hch@lst.de> + * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org> + * Copyright (c) 2012 Pontus Fuchs <pontus.fuchs@gmail.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This driver is based on the uath driver written by Damien Bergamini for + * OpenBSD, who did black-box analysis of the Windows binary driver to find + * out how the hardware works. It contains a lot magic numbers because of + * that and only has minimal functionality. + */ +#include <linux/compiler.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/completion.h> +#include <linux/firmware.h> +#include <linux/skbuff.h> +#include <linux/usb.h> +#include <net/mac80211.h> + +#include "ar5523.h" +#include "ar5523_hw.h" + +/* + * Various supported device vendors/products. + * UB51: AR5005UG 802.11b/g, UB52: AR5005UX 802.11a/b/g + */ + +static int ar5523_submit_rx_cmd(struct ar5523 *ar); +static void ar5523_data_tx_pkt_put(struct ar5523 *ar); + +static void ar5523_read_reply(struct ar5523 *ar, struct ar5523_cmd_hdr *hdr, + struct ar5523_tx_cmd *cmd) +{ + int dlen, olen; + u32 *rp; + + dlen = hdr->len - sizeof(*hdr); + + if (dlen < 0) { + WARN_ON(1); + goto out; + } + + ar5523_dbg(ar, "Code = %d len = %d\n", hdr->code & 0xff, dlen); + + rp = (u32 *)(hdr + 1); + if (dlen >= sizeof(u32)) { + olen = be32_to_cpu(rp[0]); + dlen -= sizeof(u32); + if (olen == 0) { + /* convention is 0 =>'s one word */ + olen = sizeof(u32); + } + } else + olen = 0; + + if (cmd->odata) { + if (cmd->olen < olen) { + ar5523_err(ar, "olen to small %d < %d\n", + cmd->olen, olen); + cmd->olen = 0; + cmd->res = -EOVERFLOW; + } else { + cmd->olen = olen; + memcpy(cmd->odata, &rp[1], olen); + cmd->res = 0; + } + } + +out: + complete(&cmd->done); +} + +static void ar5523_cmd_rx_cb(struct urb *urb) +{ + struct ar5523 *ar = urb->context; + struct ar5523_tx_cmd *cmd = &ar->tx_cmd; + struct ar5523_cmd_hdr *hdr = ar->rx_cmd_buf; + int dlen; + + if (urb->status) { + if (urb->status != -ESHUTDOWN) + ar5523_err(ar, "RX USB error %d.\n", urb->status); + goto skip; + } + + if (urb->actual_length < sizeof(struct ar5523_cmd_hdr)) { + ar5523_err(ar, "RX USB to short.\n"); + goto skip; + } + + ar5523_dbg(ar, "%s code %02x priv %d\n", __func__, + be32_to_cpu(hdr->code) & 0xff, hdr->priv); + + hdr->code = be32_to_cpu(hdr->code); + hdr->len = be32_to_cpu(hdr->len); + + switch (hdr->code & 0xff) { + default: + /* reply to a read command */ + if (hdr->priv != AR5523_CMD_ID) { + ar5523_err(ar, "Unexpected command id: %02x\n", + hdr->code & 0xff); + goto skip; + } + ar5523_read_reply(ar, hdr, cmd); + break; + + case WDCMSG_DEVICE_AVAIL: + ar5523_dbg(ar, "WDCMSG_DEVICE_AVAIL\n"); + cmd->res = 0; + cmd->olen = 0; + complete(&cmd->done); + break; + + case WDCMSG_SEND_COMPLETE: + ar5523_dbg(ar, "WDCMSG_SEND_COMPLETE: %d pending\n", + atomic_read(&ar->tx_nr_pending)); + if (!test_bit(AR5523_HW_UP, &ar->flags)) + ar5523_dbg(ar, "Unexpected WDCMSG_SEND_COMPLETE\n"); + else { + mod_timer(&ar->tx_wd_timer, + jiffies + AR5523_TX_WD_TIMEOUT); + ar5523_data_tx_pkt_put(ar); + + } + break; + + case WDCMSG_TARGET_START: + /* This command returns a bogus id so it needs special + handling */ + dlen = hdr->len - sizeof(*hdr); + if (dlen != (int)sizeof(u32)) { + ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START"); + return; + } + memcpy(cmd->odata, hdr + 1, sizeof(u32)); + cmd->olen = sizeof(u32); + cmd->res = 0; + complete(&cmd->done); + break; + + case WDCMSG_STATS_UPDATE: + ar5523_dbg(ar, "WDCMSG_STATS_UPDATE\n"); + break; + } + +skip: + ar5523_submit_rx_cmd(ar); +} + +static int ar5523_alloc_rx_cmd(struct ar5523 *ar) +{ + ar->rx_cmd_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ar->rx_cmd_urb) + return -ENOMEM; + + ar->rx_cmd_buf = usb_alloc_coherent(ar->dev, AR5523_MAX_RXCMDSZ, + GFP_KERNEL, + &ar->rx_cmd_urb->transfer_dma); + if (!ar->rx_cmd_buf) { + usb_free_urb(ar->rx_cmd_urb); + return -ENOMEM; + } + return 0; +} + +static void ar5523_cancel_rx_cmd(struct ar5523 *ar) +{ + usb_kill_urb(ar->rx_cmd_urb); +} + +static void ar5523_free_rx_cmd(struct ar5523 *ar) +{ + usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, + ar->rx_cmd_buf, ar->rx_cmd_urb->transfer_dma); + usb_free_urb(ar->rx_cmd_urb); +} + +static int ar5523_submit_rx_cmd(struct ar5523 *ar) +{ + int error; + + usb_fill_bulk_urb(ar->rx_cmd_urb, ar->dev, + ar5523_cmd_rx_pipe(ar->dev), ar->rx_cmd_buf, + AR5523_MAX_RXCMDSZ, ar5523_cmd_rx_cb, ar); + ar->rx_cmd_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + error = usb_submit_urb(ar->rx_cmd_urb, GFP_ATOMIC); + if (error) { + if (error != -ENODEV) + ar5523_err(ar, "error %d when submitting rx urb\n", + error); + return error; + } + return 0; +} + +/* + * Command submitted cb + */ +static void ar5523_cmd_tx_cb(struct urb *urb) +{ + struct ar5523_tx_cmd *cmd = urb->context; + struct ar5523 *ar = cmd->ar; + + if (urb->status) { + ar5523_err(ar, "Failed to TX command. Status = %d\n", + urb->status); + cmd->res = urb->status; + complete(&cmd->done); + return; + } + + if (!(cmd->flags & AR5523_CMD_FLAG_READ)) { + cmd->res = 0; + complete(&cmd->done); + } +} + +static int ar5523_cmd(struct ar5523 *ar, u32 code, const void *idata, + int ilen, void *odata, int olen, int flags) +{ + struct ar5523_cmd_hdr *hdr; + struct ar5523_tx_cmd *cmd = &ar->tx_cmd; + int xferlen, error; + + /* always bulk-out a multiple of 4 bytes */ + xferlen = (sizeof(struct ar5523_cmd_hdr) + ilen + 3) & ~3; + + hdr = (struct ar5523_cmd_hdr *)cmd->buf_tx; + memset(hdr, 0, sizeof(struct ar5523_cmd_hdr)); + hdr->len = cpu_to_be32(xferlen); + hdr->code = cpu_to_be32(code); + hdr->priv = AR5523_CMD_ID; + + if (flags & AR5523_CMD_FLAG_MAGIC) + hdr->magic = cpu_to_be32(1 << 24); + memcpy(hdr + 1, idata, ilen); + + cmd->odata = odata; + cmd->olen = olen; + cmd->flags = flags; + + ar5523_dbg(ar, "do cmd %02x\n", code); + + usb_fill_bulk_urb(cmd->urb_tx, ar->dev, ar5523_cmd_tx_pipe(ar->dev), + cmd->buf_tx, xferlen, ar5523_cmd_tx_cb, cmd); + cmd->urb_tx->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + error = usb_submit_urb(cmd->urb_tx, GFP_KERNEL); + if (error) { + ar5523_err(ar, "could not send command 0x%x, error=%d\n", + code, error); + return error; + } + + if (!wait_for_completion_timeout(&cmd->done, 2 * HZ)) { + cmd->odata = NULL; + ar5523_err(ar, "timeout waiting for command %02x reply\n", + code); + cmd->res = -ETIMEDOUT; + } + return cmd->res; +} + +static int ar5523_cmd_write(struct ar5523 *ar, u32 code, const void *data, + int len, int flags) +{ + flags &= ~AR5523_CMD_FLAG_READ; + return ar5523_cmd(ar, code, data, len, NULL, 0, flags); +} + +static int ar5523_cmd_read(struct ar5523 *ar, u32 code, const void *idata, + int ilen, void *odata, int olen, int flags) +{ + flags |= AR5523_CMD_FLAG_READ; + return ar5523_cmd(ar, code, idata, ilen, odata, olen, flags); +} + +static int ar5523_config(struct ar5523 *ar, u32 reg, u32 val) +{ + struct ar5523_write_mac write; + int error; + + write.reg = cpu_to_be32(reg); + write.len = cpu_to_be32(0); /* 0 = single write */ + *(u32 *)write.data = cpu_to_be32(val); + + error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, + 3 * sizeof(u32), 0); + if (error != 0) + ar5523_err(ar, "could not write register 0x%02x\n", reg); + return error; +} + +static int ar5523_config_multi(struct ar5523 *ar, u32 reg, const void *data, + int len) +{ + struct ar5523_write_mac write; + int error; + + write.reg = cpu_to_be32(reg); + write.len = cpu_to_be32(len); + memcpy(write.data, data, len); + + /* properly handle the case where len is zero (reset) */ + error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, + (len == 0) ? sizeof(u32) : 2 * sizeof(u32) + len, 0); + if (error != 0) + ar5523_err(ar, "could not write %d bytes to register 0x%02x\n", + len, reg); + return error; +} + +static int ar5523_get_status(struct ar5523 *ar, u32 which, void *odata, + int olen) +{ + int error; + + which = cpu_to_be32(which); + error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_STATUS, + &which, sizeof(which), odata, olen, AR5523_CMD_FLAG_MAGIC); + if (error != 0) + ar5523_err(ar, "could not read EEPROM offset 0x%02x\n", + be32_to_cpu(which)); + return error; +} + +static int ar5523_get_capability(struct ar5523 *ar, u32 cap, u32 *val) +{ + int error; + + cap = cpu_to_be32(cap); + error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_CAPABILITY, + &cap, sizeof(cap), val, sizeof(u32), AR5523_CMD_FLAG_MAGIC); + if (error != 0) { + ar5523_err(ar, "could not read capability %u\n", + be32_to_cpu(cap)); + return error; + } + *val = be32_to_cpu(*val); + return error; +} + +static int ar5523_get_devcap(struct ar5523 *ar) +{ +#define GETCAP(x) do { \ + error = ar5523_get_capability(ar, x, &cap); \ + if (error != 0) \ + return error; \ + ar5523_info(ar, "Cap: " \ + "%s=0x%08x\n", #x, cap); \ +} while (0) + int error; + u32 cap; + + /* collect device capabilities */ + GETCAP(CAP_TARGET_VERSION); + GETCAP(CAP_TARGET_REVISION); + GETCAP(CAP_MAC_VERSION); + GETCAP(CAP_MAC_REVISION); + GETCAP(CAP_PHY_REVISION); + GETCAP(CAP_ANALOG_5GHz_REVISION); + GETCAP(CAP_ANALOG_2GHz_REVISION); + + GETCAP(CAP_REG_DOMAIN); + GETCAP(CAP_REG_CAP_BITS); + GETCAP(CAP_WIRELESS_MODES); + GETCAP(CAP_CHAN_SPREAD_SUPPORT); + GETCAP(CAP_COMPRESS_SUPPORT); + GETCAP(CAP_BURST_SUPPORT); + GETCAP(CAP_FAST_FRAMES_SUPPORT); + GETCAP(CAP_CHAP_TUNING_SUPPORT); + GETCAP(CAP_TURBOG_SUPPORT); + GETCAP(CAP_TURBO_PRIME_SUPPORT); + GETCAP(CAP_DEVICE_TYPE); + GETCAP(CAP_WME_SUPPORT); + GETCAP(CAP_TOTAL_QUEUES); + GETCAP(CAP_CONNECTION_ID_MAX); + + GETCAP(CAP_LOW_5GHZ_CHAN); + GETCAP(CAP_HIGH_5GHZ_CHAN); + GETCAP(CAP_LOW_2GHZ_CHAN); + GETCAP(CAP_HIGH_2GHZ_CHAN); + GETCAP(CAP_TWICE_ANTENNAGAIN_5G); + GETCAP(CAP_TWICE_ANTENNAGAIN_2G); + + GETCAP(CAP_CIPHER_AES_CCM); + GETCAP(CAP_CIPHER_TKIP); + GETCAP(CAP_MIC_TKIP); + return 0; +} + +static int ar5523_set_ledsteady(struct ar5523 *ar, int lednum, int ledmode) +{ + struct ar5523_cmd_ledsteady led; + + led.lednum = cpu_to_be32(lednum); + led.ledmode = cpu_to_be32(ledmode); + + ar5523_dbg(ar, "set %s led %s (steady)\n", + (lednum == UATH_LED_LINK) ? "link" : "activity", + ledmode ? "on" : "off"); + return ar5523_cmd_write(ar, WDCMSG_SET_LED_STEADY, &led, sizeof(led), + 0); +} + +static int ar5523_set_rxfilter(struct ar5523 *ar, u32 bits, u32 op) +{ + struct ar5523_cmd_rx_filter rxfilter; + + rxfilter.bits = cpu_to_be32(bits); + rxfilter.op = cpu_to_be32(op); + + ar5523_dbg(ar, "setting Rx filter=0x%x flags=0x%x\n", bits, op); + return ar5523_cmd_write(ar, WDCMSG_RX_FILTER, &rxfilter, + sizeof(rxfilter), 0); +} + +static int ar5523_reset_tx_queues(struct ar5523 *ar) +{ + __be32 qid = cpu_to_be32(0); + + ar5523_dbg(ar, "resetting Tx queue\n"); + return ar5523_cmd_write(ar, WDCMSG_RELEASE_TX_QUEUE, + &qid, sizeof(qid), 0); +} + +static int ar5523_set_chan(struct ar5523 *ar) +{ + struct ieee80211_conf *conf = &ar->hw->conf; + + struct ar5523_cmd_reset reset; + + memset(&reset, 0, sizeof(reset)); + reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ); + reset.flags |= cpu_to_be32(UATH_CHAN_OFDM); + reset.freq = cpu_to_be32(conf->channel->center_freq); + reset.maxrdpower = cpu_to_be32(50); /* XXX */ + reset.channelchange = cpu_to_be32(1); + reset.keeprccontent = cpu_to_be32(0); + + ar5523_dbg(ar, "set chan flags 0x%x freq %d\n", + be32_to_cpu(reset.flags), + conf->channel->center_freq); + return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0); +} + +static int ar5523_queue_init(struct ar5523 *ar) +{ + struct ar5523_cmd_txq_setup qinfo; + + ar5523_dbg(ar, "setting up Tx queue\n"); + qinfo.qid = cpu_to_be32(0); + qinfo.len = cpu_to_be32(sizeof(qinfo.attr)); + qinfo.attr.priority = cpu_to_be32(0); /* XXX */ + qinfo.attr.aifs = cpu_to_be32(3); + qinfo.attr.logcwmin = cpu_to_be32(4); + qinfo.attr.logcwmax = cpu_to_be32(10); + qinfo.attr.bursttime = cpu_to_be32(0); + qinfo.attr.mode = cpu_to_be32(0); + qinfo.attr.qflags = cpu_to_be32(1); /* XXX? */ + return ar5523_cmd_write(ar, WDCMSG_SETUP_TX_QUEUE, &qinfo, + sizeof(qinfo), 0); +} + +static int ar5523_switch_chan(struct ar5523 *ar) +{ + int error; + + error = ar5523_set_chan(ar); + if (error) { + ar5523_err(ar, "could not set chan, error %d\n", error); + goto out_err; + } + + /* reset Tx rings */ + error = ar5523_reset_tx_queues(ar); + if (error) { + ar5523_err(ar, "could not reset Tx queues, error %d\n", + error); + goto out_err; + } + /* set Tx rings WME properties */ + error = ar5523_queue_init(ar); + if (error) + ar5523_err(ar, "could not init wme, error %d\n", error); + +out_err: + return error; +} + +static void ar5523_rx_data_put(struct ar5523 *ar, + struct ar5523_rx_data *data) +{ + unsigned long flags; + spin_lock_irqsave(&ar->rx_data_list_lock, flags); + list_move(&data->list, &ar->rx_data_free); + spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); +} + +static void ar5523_data_rx_cb(struct urb *urb) +{ + struct ar5523_rx_data *data = urb->context; + struct ar5523 *ar = data->ar; + struct ar5523_rx_desc *desc; + struct ar5523_chunk *chunk; + struct ieee80211_hw *hw = ar->hw; + struct ieee80211_rx_status *rx_status; + u32 rxlen; + int usblen = urb->actual_length; + int hdrlen, pad; + + ar5523_dbg(ar, "%s\n", __func__); + /* sync/async unlink faults aren't errors */ + if (urb->status) { + if (urb->status != -ESHUTDOWN) + ar5523_err(ar, "%s: USB err: %d\n", __func__, + urb->status); + goto skip; + } + + if (usblen < AR5523_MIN_RXBUFSZ) { + ar5523_err(ar, "RX: wrong xfer size (usblen=%d)\n", usblen); + goto skip; + } + + chunk = (struct ar5523_chunk *) data->skb->data; + + if (((chunk->flags & UATH_CFLAGS_FINAL) == 0) || + chunk->seqnum != 0) { + ar5523_dbg(ar, "RX: No final flag. s: %d f: %02x l: %d\n", + chunk->seqnum, chunk->flags, + be16_to_cpu(chunk->length)); + goto skip; + } + + /* Rx descriptor is located at the end, 32-bit aligned */ + desc = (struct ar5523_rx_desc *) + (data->skb->data + usblen - sizeof(struct ar5523_rx_desc)); + + rxlen = be32_to_cpu(desc->len); + if (rxlen > ar->rxbufsz) { + ar5523_dbg(ar, "RX: Bad descriptor (len=%d)\n", + be32_to_cpu(desc->len)); + goto skip; + } + + if (!rxlen) { + ar5523_dbg(ar, "RX: rxlen is 0\n"); + goto skip; + } + + if (be32_to_cpu(desc->status) != 0) { + ar5523_dbg(ar, "Bad RX status (0x%x len = %d). Skip\n", + be32_to_cpu(desc->status), be32_to_cpu(desc->len)); + goto skip; + } + + skb_reserve(data->skb, sizeof(*chunk)); + skb_put(data->skb, rxlen - sizeof(struct ar5523_rx_desc)); + + hdrlen = ieee80211_get_hdrlen_from_skb(data->skb); + if (!IS_ALIGNED(hdrlen, 4)) { + ar5523_dbg(ar, "eek, alignment workaround activated\n"); + pad = ALIGN(hdrlen, 4) - hdrlen; + memmove(data->skb->data + pad, data->skb->data, hdrlen); + skb_pull(data->skb, pad); + skb_put(data->skb, pad); + } + + rx_status = IEEE80211_SKB_RXCB(data->skb); + memset(rx_status, 0, sizeof(*rx_status)); + rx_status->freq = be32_to_cpu(desc->channel); + rx_status->band = hw->conf.channel->band; + rx_status->signal = -95 + be32_to_cpu(desc->rssi); + + ieee80211_rx_irqsafe(hw, data->skb); + data->skb = NULL; + +skip: + if (data->skb) { + dev_kfree_skb_irq(data->skb); + data->skb = NULL; + } + + ar5523_rx_data_put(ar, data); + if (atomic_inc_return(&ar->rx_data_free_cnt) >= + AR5523_RX_DATA_REFILL_COUNT && + test_bit(AR5523_HW_UP, &ar->flags)) + queue_work(ar->wq, &ar->rx_refill_work); +} + +static void ar5523_rx_refill_work(struct work_struct *work) +{ + struct ar5523 *ar = container_of(work, struct ar5523, rx_refill_work); + struct ar5523_rx_data *data; + unsigned long flags; + int error; + + ar5523_dbg(ar, "%s\n", __func__); + do { + spin_lock_irqsave(&ar->rx_data_list_lock, flags); + + if (!list_empty(&ar->rx_data_free)) + data = (struct ar5523_rx_data *) ar->rx_data_free.next; + else + data = NULL; + spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); + + if (!data) + goto done; + + data->skb = alloc_skb(ar->rxbufsz, GFP_KERNEL); + if (!data->skb) { + ar5523_err(ar, "could not allocate rx skbuff\n"); + return; + } + + usb_fill_bulk_urb(data->urb, ar->dev, + ar5523_data_rx_pipe(ar->dev), data->skb->data, + ar->rxbufsz, ar5523_data_rx_cb, data); + + spin_lock_irqsave(&ar->rx_data_list_lock, flags); + list_move(&data->list, &ar->rx_data_used); + spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); + atomic_dec(&ar->rx_data_free_cnt); + + error = usb_submit_urb(data->urb, GFP_KERNEL); + if (error) { + kfree_skb(data->skb); + if (error != -ENODEV) + ar5523_err(ar, "Err sending rx data urb %d\n", + error); + ar5523_rx_data_put(ar, data); + atomic_inc(&ar->rx_data_free_cnt); + return; + } + + } while (true); +done: + return; +} + +static void ar5523_cancel_rx_bufs(struct ar5523 *ar) +{ + struct ar5523_rx_data *data; + unsigned long flags; + + do { + spin_lock_irqsave(&ar->rx_data_list_lock, flags); + if (!list_empty(&ar->rx_data_used)) + data = (struct ar5523_rx_data *) ar->rx_data_used.next; + else + data = NULL; + spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); + + if (!data) + break; + + usb_kill_urb(data->urb); + list_move(&data->list, &ar->rx_data_free); + atomic_inc(&ar->rx_data_free_cnt); + } while (data); +} + +static void ar5523_free_rx_bufs(struct ar5523 *ar) +{ + struct ar5523_rx_data *data; + + ar5523_cancel_rx_bufs(ar); + while (!list_empty(&ar->rx_data_free)) { + data = (struct ar5523_rx_data *) ar->rx_data_free.next; + list_del(&data->list); + usb_free_urb(data->urb); + } +} + +static int ar5523_alloc_rx_bufs(struct ar5523 *ar) +{ + int i; + + for (i = 0; i < AR5523_RX_DATA_COUNT; i++) { + struct ar5523_rx_data *data = &ar->rx_data[i]; + + data->ar = ar; + data->urb = usb_alloc_urb(0, GFP_KERNEL); + if (!data->urb) { + ar5523_err(ar, "could not allocate rx data urb\n"); + goto err; + } + list_add_tail(&data->list, &ar->rx_data_free); + atomic_inc(&ar->rx_data_free_cnt); + } + return 0; + +err: + ar5523_free_rx_bufs(ar); + return -ENOMEM; +} + +static void ar5523_data_tx_pkt_put(struct ar5523 *ar) +{ + atomic_dec(&ar->tx_nr_total); + if (!atomic_dec_return(&ar->tx_nr_pending)) { + del_timer(&ar->tx_wd_timer); + wake_up(&ar->tx_flush_waitq); + } + + if (atomic_read(&ar->tx_nr_total) < AR5523_TX_DATA_RESTART_COUNT) { + ar5523_dbg(ar, "restart tx queue\n"); + ieee80211_wake_queues(ar->hw); + } +} + +static void ar5523_data_tx_cb(struct urb *urb) +{ + struct sk_buff *skb = urb->context; + struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); + struct ar5523_tx_data *data = (struct ar5523_tx_data *) + txi->driver_data; + struct ar5523 *ar = data->ar; + unsigned long flags; + + ar5523_dbg(ar, "data tx urb completed: %d\n", urb->status); + + spin_lock_irqsave(&ar->tx_data_list_lock, flags); + list_del(&data->list); + spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); + + if (urb->status) { + ar5523_dbg(ar, "%s: urb status: %d\n", __func__, urb->status); + ar5523_data_tx_pkt_put(ar); + ieee80211_free_txskb(ar->hw, skb); + } else { + skb_pull(skb, sizeof(struct ar5523_tx_desc) + sizeof(__be32)); + ieee80211_tx_status_irqsafe(ar->hw, skb); + } + usb_free_urb(urb); +} + +static void ar5523_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); + struct ar5523_tx_data *data = (struct ar5523_tx_data *) + txi->driver_data; + struct ar5523 *ar = hw->priv; + unsigned long flags; + + ar5523_dbg(ar, "tx called\n"); + if (atomic_inc_return(&ar->tx_nr_total) >= AR5523_TX_DATA_COUNT) { + ar5523_dbg(ar, "tx queue full\n"); + ar5523_dbg(ar, "stop queues (tot %d pend %d)\n", + atomic_read(&ar->tx_nr_total), + atomic_read(&ar->tx_nr_pending)); + ieee80211_stop_queues(hw); + } + + data->skb = skb; + + spin_lock_irqsave(&ar->tx_data_list_lock, flags); + list_add_tail(&data->list, &ar->tx_queue_pending); + spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); + + ieee80211_queue_work(ar->hw, &ar->tx_work); +} + +static void ar5523_tx_work_locked(struct ar5523 *ar) +{ + struct ar5523_tx_data *data; + struct ar5523_tx_desc *desc; + struct ar5523_chunk *chunk; + struct ieee80211_tx_info *txi; + struct urb *urb; + struct sk_buff *skb; + int error = 0, paylen; + u32 txqid; + unsigned long flags; + + BUILD_BUG_ON(sizeof(struct ar5523_tx_data) > + IEEE80211_TX_INFO_DRIVER_DATA_SIZE); + + ar5523_dbg(ar, "%s\n", __func__); + do { + spin_lock_irqsave(&ar->tx_data_list_lock, flags); + if (!list_empty(&ar->tx_queue_pending)) { + data = (struct ar5523_tx_data *) + ar->tx_queue_pending.next; + list_del(&data->list); + } else + data = NULL; + spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); + + if (!data) + break; + + skb = data->skb; + txqid = 0; + txi = IEEE80211_SKB_CB(skb); + paylen = skb->len; + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + ar5523_err(ar, "Failed to allocate TX urb\n"); + ieee80211_free_txskb(ar->hw, skb); + continue; + } + + data->ar = ar; + data->urb = urb; + + desc = (struct ar5523_tx_desc *)skb_push(skb, sizeof(*desc)); + chunk = (struct ar5523_chunk *)skb_push(skb, sizeof(*chunk)); + + chunk->seqnum = 0; + chunk->flags = UATH_CFLAGS_FINAL; + chunk->length = cpu_to_be16(skb->len); + + desc->msglen = cpu_to_be32(skb->len); + desc->msgid = AR5523_DATA_ID; + desc->buflen = cpu_to_be32(paylen); + desc->type = cpu_to_be32(WDCMSG_SEND); + desc->flags = cpu_to_be32(UATH_TX_NOTIFY); + + if (test_bit(AR5523_CONNECTED, &ar->flags)) + desc->connid = cpu_to_be32(AR5523_ID_BSS); + else + desc->connid = cpu_to_be32(AR5523_ID_BROADCAST); + + if (txi->flags & IEEE80211_TX_CTL_USE_MINRATE) + txqid |= UATH_TXQID_MINRATE; + + desc->txqid = cpu_to_be32(txqid); + + urb->transfer_flags = URB_ZERO_PACKET; + usb_fill_bulk_urb(urb, ar->dev, ar5523_data_tx_pipe(ar->dev), + skb->data, skb->len, ar5523_data_tx_cb, skb); + + spin_lock_irqsave(&ar->tx_data_list_lock, flags); + list_add_tail(&data->list, &ar->tx_queue_submitted); + spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); + mod_timer(&ar->tx_wd_timer, jiffies + AR5523_TX_WD_TIMEOUT); + atomic_inc(&ar->tx_nr_pending); + + ar5523_dbg(ar, "TX Frame (%d pending)\n", + atomic_read(&ar->tx_nr_pending)); + error = usb_submit_urb(urb, GFP_KERNEL); + if (error) { + ar5523_err(ar, "error %d when submitting tx urb\n", + error); + spin_lock_irqsave(&ar->tx_data_list_lock, flags); + list_del(&data->list); + spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); + atomic_dec(&ar->tx_nr_pending); + ar5523_data_tx_pkt_put(ar); + usb_free_urb(urb); + ieee80211_free_txskb(ar->hw, skb); + } + } while (true); +} + +static void ar5523_tx_work(struct work_struct *work) +{ + struct ar5523 *ar = container_of(work, struct ar5523, tx_work); + + ar5523_dbg(ar, "%s\n", __func__); + mutex_lock(&ar->mutex); + ar5523_tx_work_locked(ar); + mutex_unlock(&ar->mutex); +} + +static void ar5523_tx_wd_timer(unsigned long arg) +{ + struct ar5523 *ar = (struct ar5523 *) arg; + + ar5523_dbg(ar, "TX watchdog timer triggered\n"); + ieee80211_queue_work(ar->hw, &ar->tx_wd_work); +} + +static void ar5523_tx_wd_work(struct work_struct *work) +{ + struct ar5523 *ar = container_of(work, struct ar5523, tx_wd_work); + + /* Occasionally the TX queues stop responding. The only way to + * recover seems to be to reset the dongle. + */ + + mutex_lock(&ar->mutex); + ar5523_err(ar, "TX queue stuck (tot %d pend %d)\n", + atomic_read(&ar->tx_nr_total), + atomic_read(&ar->tx_nr_pending)); + + ar5523_err(ar, "Will restart dongle.\n"); + ar5523_cmd_write(ar, WDCMSG_TARGET_RESET, NULL, 0, 0); + mutex_unlock(&ar->mutex); +} + +static void ar5523_flush_tx(struct ar5523 *ar) +{ + ar5523_tx_work_locked(ar); + + /* Don't waste time trying to flush if USB is disconnected */ + if (test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) + return; + if (!wait_event_timeout(ar->tx_flush_waitq, + !atomic_read(&ar->tx_nr_pending), AR5523_FLUSH_TIMEOUT)) + ar5523_err(ar, "flush timeout (tot %d pend %d)\n", + atomic_read(&ar->tx_nr_total), + atomic_read(&ar->tx_nr_pending)); +} + +static void ar5523_free_tx_cmd(struct ar5523 *ar) +{ + struct ar5523_tx_cmd *cmd = &ar->tx_cmd; + + usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, cmd->buf_tx, + cmd->urb_tx->transfer_dma); + usb_free_urb(cmd->urb_tx); +} + +static int ar5523_alloc_tx_cmd(struct ar5523 *ar) +{ + struct ar5523_tx_cmd *cmd = &ar->tx_cmd; + + cmd->ar = ar; + init_completion(&cmd->done); + + cmd->urb_tx = usb_alloc_urb(0, GFP_KERNEL); + if (!cmd->urb_tx) { + ar5523_err(ar, "could not allocate urb\n"); + return -ENOMEM; + } + cmd->buf_tx = usb_alloc_coherent(ar->dev, AR5523_MAX_TXCMDSZ, + GFP_KERNEL, + &cmd->urb_tx->transfer_dma); + if (!cmd->buf_tx) { + usb_free_urb(cmd->urb_tx); + return -ENOMEM; + } + return 0; +} + +/* + * This function is called periodically (every second) when associated to + * query device statistics. + */ +static void ar5523_stat_work(struct work_struct *work) +{ + struct ar5523 *ar = container_of(work, struct ar5523, stat_work.work); + int error; + + ar5523_dbg(ar, "%s\n", __func__); + mutex_lock(&ar->mutex); + + /* + * Send request for statistics asynchronously once a second. This + * seems to be important. Throughput is a lot better if this is done. + */ + error = ar5523_cmd_write(ar, WDCMSG_TARGET_GET_STATS, NULL, 0, 0); + if (error) + ar5523_err(ar, "could not query stats, error %d\n", error); + mutex_unlock(&ar->mutex); + ieee80211_queue_delayed_work(ar->hw, &ar->stat_work, HZ); +} + +/* + * Interface routines to the mac80211 stack. + */ +static int ar5523_start(struct ieee80211_hw *hw) +{ + struct ar5523 *ar = hw->priv; + int error; + __be32 val; + + ar5523_dbg(ar, "start called\n"); + + mutex_lock(&ar->mutex); + val = cpu_to_be32(0); + ar5523_cmd_write(ar, WDCMSG_BIND, &val, sizeof(val), 0); + + /* set MAC address */ + ar5523_config_multi(ar, CFG_MAC_ADDR, &ar->hw->wiphy->perm_addr, + ETH_ALEN); + + /* XXX honor net80211 state */ + ar5523_config(ar, CFG_RATE_CONTROL_ENABLE, 0x00000001); + ar5523_config(ar, CFG_DIVERSITY_CTL, 0x00000001); + ar5523_config(ar, CFG_ABOLT, 0x0000003f); + ar5523_config(ar, CFG_WME_ENABLED, 0x00000000); + + ar5523_config(ar, CFG_SERVICE_TYPE, 1); + ar5523_config(ar, CFG_TP_SCALE, 0x00000000); + ar5523_config(ar, CFG_TPC_HALF_DBM5, 0x0000003c); + ar5523_config(ar, CFG_TPC_HALF_DBM2, 0x0000003c); + ar5523_config(ar, CFG_OVERRD_TX_POWER, 0x00000000); + ar5523_config(ar, CFG_GMODE_PROTECTION, 0x00000000); + ar5523_config(ar, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003); + ar5523_config(ar, CFG_PROTECTION_TYPE, 0x00000000); + ar5523_config(ar, CFG_MODE_CTS, 0x00000002); + + error = ar5523_cmd_read(ar, WDCMSG_TARGET_START, NULL, 0, + &val, sizeof(val), AR5523_CMD_FLAG_MAGIC); + if (error) { + ar5523_dbg(ar, "could not start target, error %d\n", error); + goto err; + } + ar5523_dbg(ar, "WDCMSG_TARGET_START returns handle: 0x%x\n", + be32_to_cpu(val)); + + ar5523_switch_chan(ar); + + val = cpu_to_be32(TARGET_DEVICE_AWAKE); + ar5523_cmd_write(ar, WDCMSG_SET_PWR_MODE, &val, sizeof(val), 0); + /* XXX? check */ + ar5523_cmd_write(ar, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0); + + set_bit(AR5523_HW_UP, &ar->flags); + queue_work(ar->wq, &ar->rx_refill_work); + + /* enable Rx */ + ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); + ar5523_set_rxfilter(ar, + UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | + UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON, + UATH_FILTER_OP_SET); + + ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_ON); + ar5523_dbg(ar, "start OK\n"); + +err: + mutex_unlock(&ar->mutex); + return error; +} + +static void ar5523_stop(struct ieee80211_hw *hw) +{ + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "stop called\n"); + + cancel_delayed_work_sync(&ar->stat_work); + mutex_lock(&ar->mutex); + clear_bit(AR5523_HW_UP, &ar->flags); + + ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); + ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_OFF); + + ar5523_cmd_write(ar, WDCMSG_TARGET_STOP, NULL, 0, 0); + + del_timer_sync(&ar->tx_wd_timer); + cancel_work_sync(&ar->tx_wd_work); + cancel_work_sync(&ar->rx_refill_work); + ar5523_cancel_rx_bufs(ar); + mutex_unlock(&ar->mutex); +} + +static int ar5523_set_rts_threshold(struct ieee80211_hw *hw, u32 value) +{ + struct ar5523 *ar = hw->priv; + int ret; + + ar5523_dbg(ar, "set_rts_threshold called\n"); + mutex_lock(&ar->mutex); + + ret = ar5523_config(ar, CFG_USER_RTS_THRESHOLD, value); + + mutex_unlock(&ar->mutex); + return ret; +} + +static void ar5523_flush(struct ieee80211_hw *hw, bool drop) +{ + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "flush called\n"); + ar5523_flush_tx(ar); +} + +static int ar5523_add_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "add interface called\n"); + + if (ar->vif) { + ar5523_dbg(ar, "invalid add_interface\n"); + return -EOPNOTSUPP; + } + + switch (vif->type) { + case NL80211_IFTYPE_STATION: + ar->vif = vif; + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static void ar5523_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "remove interface called\n"); + ar->vif = NULL; +} + +static int ar5523_hwconfig(struct ieee80211_hw *hw, u32 changed) +{ + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "config called\n"); + mutex_lock(&ar->mutex); + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + ar5523_dbg(ar, "Do channel switch\n"); + ar5523_flush_tx(ar); + ar5523_switch_chan(ar); + } + mutex_unlock(&ar->mutex); + return 0; +} + +static int ar5523_get_wlan_mode(struct ar5523 *ar, + struct ieee80211_bss_conf *bss_conf) +{ + struct ieee80211_supported_band *band; + int bit; + struct ieee80211_sta *sta; + u32 sta_rate_set; + + band = ar->hw->wiphy->bands[ar->hw->conf.channel->band]; + sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); + if (!sta) { + ar5523_info(ar, "STA not found!\n"); + return WLAN_MODE_11b; + } + sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band]; + + for (bit = 0; bit < band->n_bitrates; bit++) { + if (sta_rate_set & 1) { + int rate = band->bitrates[bit].bitrate; + switch (rate) { + case 60: + case 90: + case 120: + case 180: + case 240: + case 360: + case 480: + case 540: + return WLAN_MODE_11g; + } + } + sta_rate_set >>= 1; + } + return WLAN_MODE_11b; +} + +static void ar5523_create_rateset(struct ar5523 *ar, + struct ieee80211_bss_conf *bss_conf, + struct ar5523_cmd_rateset *rs, + bool basic) +{ + struct ieee80211_supported_band *band; + struct ieee80211_sta *sta; + int bit, i = 0; + u32 sta_rate_set, basic_rate_set; + + sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); + basic_rate_set = bss_conf->basic_rates; + if (!sta) { + ar5523_info(ar, "STA not found. Cannot set rates\n"); + sta_rate_set = bss_conf->basic_rates; + } + sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band]; + + ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set); + + band = ar->hw->wiphy->bands[ar->hw->conf.channel->band]; + for (bit = 0; bit < band->n_bitrates; bit++) { + BUG_ON(i >= AR5523_MAX_NRATES); + ar5523_dbg(ar, "Considering rate %d : %d\n", + band->bitrates[bit].hw_value, sta_rate_set & 1); + if (sta_rate_set & 1) { + rs->set[i] = band->bitrates[bit].hw_value; + if (basic_rate_set & 1 && basic) + rs->set[i] |= 0x80; + i++; + } + sta_rate_set >>= 1; + basic_rate_set >>= 1; + } + + rs->length = i; +} + +static int ar5523_set_basic_rates(struct ar5523 *ar, + struct ieee80211_bss_conf *bss) +{ + struct ar5523_cmd_rates rates; + + memset(&rates, 0, sizeof(rates)); + rates.connid = cpu_to_be32(2); /* XXX */ + rates.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); + ar5523_create_rateset(ar, bss, &rates.rateset, true); + + return ar5523_cmd_write(ar, WDCMSG_SET_BASIC_RATE, &rates, + sizeof(rates), 0); +} + +static int ar5523_create_connection(struct ar5523 *ar, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss) +{ + struct ar5523_cmd_create_connection create; + int wlan_mode; + + memset(&create, 0, sizeof(create)); + create.connid = cpu_to_be32(2); + create.bssid = cpu_to_be32(0); + /* XXX packed or not? */ + create.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); + + ar5523_create_rateset(ar, bss, &create.connattr.rateset, false); + + wlan_mode = ar5523_get_wlan_mode(ar, bss); + create.connattr.wlanmode = cpu_to_be32(wlan_mode); + + return ar5523_cmd_write(ar, WDCMSG_CREATE_CONNECTION, &create, + sizeof(create), 0); +} + +static int ar5523_write_associd(struct ar5523 *ar, + struct ieee80211_bss_conf *bss) +{ + struct ar5523_cmd_set_associd associd; + + memset(&associd, 0, sizeof(associd)); + associd.defaultrateix = cpu_to_be32(0); /* XXX */ + associd.associd = cpu_to_be32(bss->aid); + associd.timoffset = cpu_to_be32(0x3b); /* XXX */ + memcpy(associd.bssid, bss->bssid, ETH_ALEN); + return ar5523_cmd_write(ar, WDCMSG_WRITE_ASSOCID, &associd, + sizeof(associd), 0); +} + +static void ar5523_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss, + u32 changed) +{ + struct ar5523 *ar = hw->priv; + int error; + + ar5523_dbg(ar, "bss_info_changed called\n"); + mutex_lock(&ar->mutex); + + if (!(changed & BSS_CHANGED_ASSOC)) + goto out_unlock; + + if (bss->assoc) { + error = ar5523_create_connection(ar, vif, bss); + if (error) { + ar5523_err(ar, "could not create connection\n"); + goto out_unlock; + } + + error = ar5523_set_basic_rates(ar, bss); + if (error) { + ar5523_err(ar, "could not set negotiated rate set\n"); + goto out_unlock; + } + + error = ar5523_write_associd(ar, bss); + if (error) { + ar5523_err(ar, "could not set association\n"); + goto out_unlock; + } + + /* turn link LED on */ + ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_ON); + set_bit(AR5523_CONNECTED, &ar->flags); + ieee80211_queue_delayed_work(hw, &ar->stat_work, HZ); + + } else { + cancel_delayed_work(&ar->stat_work); + clear_bit(AR5523_CONNECTED, &ar->flags); + ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); + } + +out_unlock: + mutex_unlock(&ar->mutex); + +} + +#define AR5523_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ + FIF_ALLMULTI | \ + FIF_FCSFAIL | \ + FIF_OTHER_BSS) + +static void ar5523_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, + u64 multicast) +{ + struct ar5523 *ar = hw->priv; + u32 filter = 0; + + ar5523_dbg(ar, "configure_filter called\n"); + mutex_lock(&ar->mutex); + ar5523_flush_tx(ar); + + *total_flags &= AR5523_SUPPORTED_FILTERS; + + /* The filters seems strange. UATH_FILTER_RX_BCAST and + * UATH_FILTER_RX_MCAST does not result in those frames being RXed. + * The only way I have found to get [mb]cast frames seems to be + * to set UATH_FILTER_RX_PROM. */ + filter |= UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | + UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON | + UATH_FILTER_RX_PROM; + + ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); + ar5523_set_rxfilter(ar, filter, UATH_FILTER_OP_SET); + + mutex_unlock(&ar->mutex); +} + +static const struct ieee80211_ops ar5523_ops = { + .start = ar5523_start, + .stop = ar5523_stop, + .tx = ar5523_tx, + .set_rts_threshold = ar5523_set_rts_threshold, + .add_interface = ar5523_add_interface, + .remove_interface = ar5523_remove_interface, + .config = ar5523_hwconfig, + .bss_info_changed = ar5523_bss_info_changed, + .configure_filter = ar5523_configure_filter, + .flush = ar5523_flush, +}; + +static int ar5523_host_available(struct ar5523 *ar) +{ + struct ar5523_cmd_host_available setup; + + /* inform target the host is available */ + setup.sw_ver_major = cpu_to_be32(ATH_SW_VER_MAJOR); + setup.sw_ver_minor = cpu_to_be32(ATH_SW_VER_MINOR); + setup.sw_ver_patch = cpu_to_be32(ATH_SW_VER_PATCH); + setup.sw_ver_build = cpu_to_be32(ATH_SW_VER_BUILD); + return ar5523_cmd_read(ar, WDCMSG_HOST_AVAILABLE, + &setup, sizeof(setup), NULL, 0, 0); +} + +static int ar5523_get_devstatus(struct ar5523 *ar) +{ + u8 macaddr[ETH_ALEN]; + int error; + + /* retrieve MAC address */ + error = ar5523_get_status(ar, ST_MAC_ADDR, macaddr, ETH_ALEN); + if (error) { + ar5523_err(ar, "could not read MAC address\n"); + return error; + } + + SET_IEEE80211_PERM_ADDR(ar->hw, macaddr); + + error = ar5523_get_status(ar, ST_SERIAL_NUMBER, + &ar->serial[0], sizeof(ar->serial)); + if (error) { + ar5523_err(ar, "could not read device serial number\n"); + return error; + } + return 0; +} + +#define AR5523_SANE_RXBUFSZ 2000 + +static int ar5523_get_max_rxsz(struct ar5523 *ar) +{ + int error; + __be32 rxsize; + + /* Get max rx size */ + error = ar5523_get_status(ar, ST_WDC_TRANSPORT_CHUNK_SIZE, &rxsize, + sizeof(rxsize)); + if (error != 0) { + ar5523_err(ar, "could not read max RX size\n"); + return error; + } + + ar->rxbufsz = be32_to_cpu(rxsize); + + if (!ar->rxbufsz || ar->rxbufsz > AR5523_SANE_RXBUFSZ) { + ar5523_err(ar, "Bad rxbufsz from device. Using %d instead\n", + AR5523_SANE_RXBUFSZ); + ar->rxbufsz = AR5523_SANE_RXBUFSZ; + } + + ar5523_dbg(ar, "Max RX buf size: %d\n", ar->rxbufsz); + return 0; +} + +/* + * This is copied from rtl818x, but we should probably move this + * to common code as in OpenBSD. + */ +static const struct ieee80211_rate ar5523_rates[] = { + { .bitrate = 10, .hw_value = 2, }, + { .bitrate = 20, .hw_value = 4 }, + { .bitrate = 55, .hw_value = 11, }, + { .bitrate = 110, .hw_value = 22, }, + { .bitrate = 60, .hw_value = 12, }, + { .bitrate = 90, .hw_value = 18, }, + { .bitrate = 120, .hw_value = 24, }, + { .bitrate = 180, .hw_value = 36, }, + { .bitrate = 240, .hw_value = 48, }, + { .bitrate = 360, .hw_value = 72, }, + { .bitrate = 480, .hw_value = 96, }, + { .bitrate = 540, .hw_value = 108, }, +}; + +static const struct ieee80211_channel ar5523_channels[] = { + { .center_freq = 2412 }, + { .center_freq = 2417 }, + { .center_freq = 2422 }, + { .center_freq = 2427 }, + { .center_freq = 2432 }, + { .center_freq = 2437 }, + { .center_freq = 2442 }, + { .center_freq = 2447 }, + { .center_freq = 2452 }, + { .center_freq = 2457 }, + { .center_freq = 2462 }, + { .center_freq = 2467 }, + { .center_freq = 2472 }, + { .center_freq = 2484 }, +}; + +static int ar5523_init_modes(struct ar5523 *ar) +{ + BUILD_BUG_ON(sizeof(ar->channels) != sizeof(ar5523_channels)); + BUILD_BUG_ON(sizeof(ar->rates) != sizeof(ar5523_rates)); + + memcpy(ar->channels, ar5523_channels, sizeof(ar5523_channels)); + memcpy(ar->rates, ar5523_rates, sizeof(ar5523_rates)); + + ar->band.band = IEEE80211_BAND_2GHZ; + ar->band.channels = ar->channels; + ar->band.n_channels = ARRAY_SIZE(ar5523_channels); + ar->band.bitrates = ar->rates; + ar->band.n_bitrates = ARRAY_SIZE(ar5523_rates); + ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &ar->band; + return 0; +} + +/* + * Load the MIPS R4000 microcode into the device. Once the image is loaded, + * the device will detach itself from the bus and reattach later with a new + * product Id (a la ezusb). + */ +static int ar5523_load_firmware(struct usb_device *dev) +{ + struct ar5523_fwblock *txblock, *rxblock; + const struct firmware *fw; + void *fwbuf; + int len, offset; + int foolen; /* XXX(hch): handle short transfers */ + int error = -ENXIO; + + if (request_firmware(&fw, AR5523_FIRMWARE_FILE, &dev->dev)) { + dev_err(&dev->dev, "no firmware found: %s\n", + AR5523_FIRMWARE_FILE); + return -ENOENT; + } + + txblock = kmalloc(sizeof(*txblock), GFP_KERNEL); + if (!txblock) + goto out; + + rxblock = kmalloc(sizeof(*rxblock), GFP_KERNEL); + if (!rxblock) + goto out_free_txblock; + + fwbuf = kmalloc(AR5523_MAX_FWBLOCK_SIZE, GFP_KERNEL); + if (!fwbuf) + goto out_free_rxblock; + + memset(txblock, 0, sizeof(struct ar5523_fwblock)); + txblock->flags = cpu_to_be32(AR5523_WRITE_BLOCK); + txblock->total = cpu_to_be32(fw->size); + + offset = 0; + len = fw->size; + while (len > 0) { + int mlen = min(len, AR5523_MAX_FWBLOCK_SIZE); + + txblock->remain = cpu_to_be32(len - mlen); + txblock->len = cpu_to_be32(mlen); + + /* send firmware block meta-data */ + error = usb_bulk_msg(dev, ar5523_cmd_tx_pipe(dev), + txblock, sizeof(*txblock), &foolen, + AR5523_CMD_TIMEOUT); + if (error) { + dev_err(&dev->dev, + "could not send firmware block info\n"); + goto out_free_fwbuf; + } + + /* send firmware block data */ + memcpy(fwbuf, fw->data + offset, mlen); + error = usb_bulk_msg(dev, ar5523_data_tx_pipe(dev), + fwbuf, mlen, &foolen, + AR5523_DATA_TIMEOUT); + if (error) { + dev_err(&dev->dev, + "could not send firmware block data\n"); + goto out_free_fwbuf; + } + + /* wait for ack from firmware */ + error = usb_bulk_msg(dev, ar5523_cmd_rx_pipe(dev), + rxblock, sizeof(*rxblock), &foolen, + AR5523_CMD_TIMEOUT); + if (error) { + dev_err(&dev->dev, + "could not read firmware answer\n"); + goto out_free_fwbuf; + } + + len -= mlen; + offset += mlen; + } + + /* + * Set the error to -ENXIO to make sure we continue probing for + * a driver. + */ + error = -ENXIO; + + out_free_fwbuf: + kfree(fwbuf); + out_free_rxblock: + kfree(rxblock); + out_free_txblock: + kfree(txblock); + out: + release_firmware(fw); + return error; +} + +static int ar5523_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct ieee80211_hw *hw; + struct ar5523 *ar; + int error = -ENOMEM; + + /* + * Load firmware if the device requires it. This will return + * -ENXIO on success and we'll get called back afer the usb + * id changes to indicate that the firmware is present. + */ + if (id->driver_info & AR5523_FLAG_PRE_FIRMWARE) + return ar5523_load_firmware(dev); + + + hw = ieee80211_alloc_hw(sizeof(*ar), &ar5523_ops); + if (!hw) + goto out; + SET_IEEE80211_DEV(hw, &intf->dev); + + ar = hw->priv; + ar->hw = hw; + ar->dev = dev; + mutex_init(&ar->mutex); + + INIT_DELAYED_WORK(&ar->stat_work, ar5523_stat_work); + init_timer(&ar->tx_wd_timer); + setup_timer(&ar->tx_wd_timer, ar5523_tx_wd_timer, (unsigned long) ar); + INIT_WORK(&ar->tx_wd_work, ar5523_tx_wd_work); + INIT_WORK(&ar->tx_work, ar5523_tx_work); + INIT_LIST_HEAD(&ar->tx_queue_pending); + INIT_LIST_HEAD(&ar->tx_queue_submitted); + spin_lock_init(&ar->tx_data_list_lock); + atomic_set(&ar->tx_nr_total, 0); + atomic_set(&ar->tx_nr_pending, 0); + init_waitqueue_head(&ar->tx_flush_waitq); + + atomic_set(&ar->rx_data_free_cnt, 0); + INIT_WORK(&ar->rx_refill_work, ar5523_rx_refill_work); + INIT_LIST_HEAD(&ar->rx_data_free); + INIT_LIST_HEAD(&ar->rx_data_used); + spin_lock_init(&ar->rx_data_list_lock); + + ar->wq = create_singlethread_workqueue("ar5523"); + if (!ar->wq) { + ar5523_err(ar, "Could not create wq\n"); + goto out_free_ar; + } + + error = ar5523_alloc_rx_bufs(ar); + if (error) { + ar5523_err(ar, "Could not allocate rx buffers\n"); + goto out_free_wq; + } + + error = ar5523_alloc_rx_cmd(ar); + if (error) { + ar5523_err(ar, "Could not allocate rx command buffers\n"); + goto out_free_rx_bufs; + } + + error = ar5523_alloc_tx_cmd(ar); + if (error) { + ar5523_err(ar, "Could not allocate tx command buffers\n"); + goto out_free_rx_cmd; + } + + error = ar5523_submit_rx_cmd(ar); + if (error) { + ar5523_err(ar, "Failed to submit rx cmd\n"); + goto out_free_tx_cmd; + } + + /* + * We're now ready to send/receive firmware commands. + */ + error = ar5523_host_available(ar); + if (error) { + ar5523_err(ar, "could not initialize adapter\n"); + goto out_cancel_rx_cmd; + } + + error = ar5523_get_max_rxsz(ar); + if (error) { + ar5523_err(ar, "could not get caps from adapter\n"); + goto out_cancel_rx_cmd; + } + + error = ar5523_get_devcap(ar); + if (error) { + ar5523_err(ar, "could not get caps from adapter\n"); + goto out_cancel_rx_cmd; + } + + error = ar5523_get_devstatus(ar); + if (error != 0) { + ar5523_err(ar, "could not get device status\n"); + goto out_cancel_rx_cmd; + } + + ar5523_info(ar, "MAC/BBP AR5523, RF AR%c112\n", + (id->driver_info & AR5523_FLAG_ABG) ? '5' : '2'); + + ar->vif = NULL; + hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | + IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_HAS_RATE_CONTROL; + hw->extra_tx_headroom = sizeof(struct ar5523_tx_desc) + + sizeof(struct ar5523_chunk); + hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + hw->queues = 1; + + error = ar5523_init_modes(ar); + if (error) + goto out_cancel_rx_cmd; + + usb_set_intfdata(intf, hw); + + error = ieee80211_register_hw(hw); + if (error) { + ar5523_err(ar, "could not register device\n"); + goto out_cancel_rx_cmd; + } + + ar5523_info(ar, "Found and initialized AR5523 device\n"); + return 0; + +out_cancel_rx_cmd: + ar5523_cancel_rx_cmd(ar); +out_free_tx_cmd: + ar5523_free_tx_cmd(ar); +out_free_rx_cmd: + ar5523_free_rx_cmd(ar); +out_free_rx_bufs: + ar5523_free_rx_bufs(ar); +out_free_wq: + destroy_workqueue(ar->wq); +out_free_ar: + ieee80211_free_hw(hw); +out: + return error; +} + +static void ar5523_disconnect(struct usb_interface *intf) +{ + struct ieee80211_hw *hw = usb_get_intfdata(intf); + struct ar5523 *ar = hw->priv; + + ar5523_dbg(ar, "detaching\n"); + set_bit(AR5523_USB_DISCONNECTED, &ar->flags); + + ieee80211_unregister_hw(hw); + + ar5523_cancel_rx_cmd(ar); + ar5523_free_tx_cmd(ar); + ar5523_free_rx_cmd(ar); + ar5523_free_rx_bufs(ar); + + destroy_workqueue(ar->wq); + + ieee80211_free_hw(hw); + usb_set_intfdata(intf, NULL); +} + +#define AR5523_DEVICE_UG(vendor, device) \ + { USB_DEVICE((vendor), (device)) }, \ + { USB_DEVICE((vendor), (device) + 1), \ + .driver_info = AR5523_FLAG_PRE_FIRMWARE } +#define AR5523_DEVICE_UX(vendor, device) \ + { USB_DEVICE((vendor), (device)), \ + .driver_info = AR5523_FLAG_ABG }, \ + { USB_DEVICE((vendor), (device) + 1), \ + .driver_info = AR5523_FLAG_ABG|AR5523_FLAG_PRE_FIRMWARE } + +static struct usb_device_id ar5523_id_table[] = { + AR5523_DEVICE_UG(0x168c, 0x0001), /* Atheros / AR5523 */ + AR5523_DEVICE_UG(0x0cf3, 0x0001), /* Atheros2 / AR5523_1 */ + AR5523_DEVICE_UG(0x0cf3, 0x0003), /* Atheros2 / AR5523_2 */ + AR5523_DEVICE_UX(0x0cf3, 0x0005), /* Atheros2 / AR5523_3 */ + AR5523_DEVICE_UG(0x0d8e, 0x7801), /* Conceptronic / AR5523_1 */ + AR5523_DEVICE_UX(0x0d8e, 0x7811), /* Conceptronic / AR5523_2 */ + AR5523_DEVICE_UX(0x2001, 0x3a00), /* Dlink / DWLAG132 */ + AR5523_DEVICE_UG(0x2001, 0x3a02), /* Dlink / DWLG132 */ + AR5523_DEVICE_UX(0x2001, 0x3a04), /* Dlink / DWLAG122 */ + AR5523_DEVICE_UG(0x1690, 0x0712), /* Gigaset / AR5523 */ + AR5523_DEVICE_UG(0x1690, 0x0710), /* Gigaset / SMCWUSBTG */ + AR5523_DEVICE_UG(0x129b, 0x160c), /* Gigaset / USB stick 108 + (CyberTAN Technology) */ + AR5523_DEVICE_UG(0x16ab, 0x7801), /* Globalsun / AR5523_1 */ + AR5523_DEVICE_UX(0x16ab, 0x7811), /* Globalsun / AR5523_2 */ + AR5523_DEVICE_UG(0x0d8e, 0x7802), /* Globalsun / AR5523_3 */ + AR5523_DEVICE_UX(0x0846, 0x4300), /* Netgear / WG111U */ + AR5523_DEVICE_UG(0x0846, 0x4250), /* Netgear / WG111T */ + AR5523_DEVICE_UG(0x0846, 0x5f00), /* Netgear / WPN111 */ + AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / AR5523_1 */ + AR5523_DEVICE_UX(0x157e, 0x3205), /* Umedia / AR5523_2 */ + AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / TEW444UBEU */ + AR5523_DEVICE_UG(0x1435, 0x0826), /* Wistronneweb / AR5523_1 */ + AR5523_DEVICE_UX(0x1435, 0x0828), /* Wistronneweb / AR5523_2 */ + AR5523_DEVICE_UG(0x0cde, 0x0012), /* Zcom / AR5523 */ + AR5523_DEVICE_UG(0x1385, 0x4250), /* Netgear3 / WG111T (2) */ + AR5523_DEVICE_UG(0x1385, 0x5f00), /* Netgear / WPN111 */ + AR5523_DEVICE_UG(0x1385, 0x5f02), /* Netgear / WPN111 */ + { } +}; +MODULE_DEVICE_TABLE(usb, ar5523_id_table); + +static struct usb_driver ar5523_driver = { + .name = "ar5523", + .id_table = ar5523_id_table, + .probe = ar5523_probe, + .disconnect = ar5523_disconnect, +}; + +static int __init ar5523_init(void) +{ + return usb_register(&ar5523_driver); +} + +static void __exit ar5523_exit(void) +{ + usb_deregister(&ar5523_driver); +} + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_FIRMWARE(AR5523_FIRMWARE_FILE); + +module_init(ar5523_init); +module_exit(ar5523_exit); diff --git a/drivers/net/wireless/ath/ar5523/ar5523.h b/drivers/net/wireless/ath/ar5523/ar5523.h new file mode 100644 index 00000000000..00c6fd346d4 --- /dev/null +++ b/drivers/net/wireless/ath/ar5523/ar5523.h @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> + * Copyright (c) 2006 Sam Leffler, Errno Consulting + * Copyright (c) 2007 Christoph Hellwig <hch@lst.de> + * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org> + * Copyright (c) 2012 Pontus Fuchs <pontus.fuchs@gmail.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define AR5523_FLAG_PRE_FIRMWARE (1 << 0) +#define AR5523_FLAG_ABG (1 << 1) + +#define AR5523_FIRMWARE_FILE "ar5523.bin" + +#define AR5523_CMD_TX_PIPE 0x01 +#define AR5523_DATA_TX_PIPE 0x02 +#define AR5523_CMD_RX_PIPE 0x81 +#define AR5523_DATA_RX_PIPE 0x82 + +#define ar5523_cmd_tx_pipe(dev) \ + usb_sndbulkpipe((dev), AR5523_CMD_TX_PIPE) +#define ar5523_data_tx_pipe(dev) \ + usb_sndbulkpipe((dev), AR5523_DATA_TX_PIPE) +#define ar5523_cmd_rx_pipe(dev) \ + usb_rcvbulkpipe((dev), AR5523_CMD_RX_PIPE) +#define ar5523_data_rx_pipe(dev) \ + usb_rcvbulkpipe((dev), AR5523_DATA_RX_PIPE) + +#define AR5523_DATA_TIMEOUT 10000 +#define AR5523_CMD_TIMEOUT 1000 + +#define AR5523_TX_DATA_COUNT 8 +#define AR5523_TX_DATA_RESTART_COUNT 2 +#define AR5523_RX_DATA_COUNT 16 +#define AR5523_RX_DATA_REFILL_COUNT 8 + +#define AR5523_CMD_ID 1 +#define AR5523_DATA_ID 2 + +#define AR5523_TX_WD_TIMEOUT (HZ * 2) +#define AR5523_FLUSH_TIMEOUT (HZ * 3) + +enum AR5523_flags { + AR5523_HW_UP, + AR5523_USB_DISCONNECTED, + AR5523_CONNECTED +}; + +struct ar5523_tx_cmd { + struct ar5523 *ar; + struct urb *urb_tx; + void *buf_tx; + void *odata; + int olen; + int flags; + int res; + struct completion done; +}; + +/* This struct is placed in tx_info->driver_data. It must not be larger + * than IEEE80211_TX_INFO_DRIVER_DATA_SIZE. + */ +struct ar5523_tx_data { + struct list_head list; + struct ar5523 *ar; + struct sk_buff *skb; + struct urb *urb; +}; + +struct ar5523_rx_data { + struct list_head list; + struct ar5523 *ar; + struct urb *urb; + struct sk_buff *skb; +}; + +struct ar5523 { + struct usb_device *dev; + struct ieee80211_hw *hw; + + unsigned long flags; + struct mutex mutex; + struct workqueue_struct *wq; + + struct ar5523_tx_cmd tx_cmd; + + struct delayed_work stat_work; + + struct timer_list tx_wd_timer; + struct work_struct tx_wd_work; + struct work_struct tx_work; + struct list_head tx_queue_pending; + struct list_head tx_queue_submitted; + spinlock_t tx_data_list_lock; + wait_queue_head_t tx_flush_waitq; + + /* Queued + Submitted TX frames */ + atomic_t tx_nr_total; + + /* Submitted TX frames */ + atomic_t tx_nr_pending; + + void *rx_cmd_buf; + struct urb *rx_cmd_urb; + + struct ar5523_rx_data rx_data[AR5523_RX_DATA_COUNT]; + spinlock_t rx_data_list_lock; + struct list_head rx_data_free; + struct list_head rx_data_used; + atomic_t rx_data_free_cnt; + + struct work_struct rx_refill_work; + + unsigned int rxbufsz; + u8 serial[16]; + + struct ieee80211_channel channels[14]; + struct ieee80211_rate rates[12]; + struct ieee80211_supported_band band; + struct ieee80211_vif *vif; +}; + +/* flags for sending firmware commands */ +#define AR5523_CMD_FLAG_READ (1 << 1) +#define AR5523_CMD_FLAG_MAGIC (1 << 2) + +#define ar5523_dbg(ar, format, arg...) \ + dev_dbg(&(ar)->dev->dev, format, ## arg) + +/* On USB hot-unplug there can be a lot of URBs in flight and they'll all + * fail. Instead of dealing with them in every possible place just surpress + * any messages on USB disconnect. + */ +#define ar5523_err(ar, format, arg...) \ +do { \ + if (!test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) { \ + dev_err(&(ar)->dev->dev, format, ## arg); \ + } \ +} while (0) +#define ar5523_info(ar, format, arg...) \ + dev_info(&(ar)->dev->dev, format, ## arg) diff --git a/drivers/net/wireless/ath/ar5523/ar5523_hw.h b/drivers/net/wireless/ath/ar5523/ar5523_hw.h new file mode 100644 index 00000000000..a0e8bf46031 --- /dev/null +++ b/drivers/net/wireless/ath/ar5523/ar5523_hw.h @@ -0,0 +1,431 @@ +/* + * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> + * Copyright (c) 2006 Sam Leffler, Errno Consulting + * Copyright (c) 2007 Christoph Hellwig <hch@lst.de> + * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org> + * Copyright (c) 2012 Pontus Fuchs <pontus.fuchs@gmail.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* all fields are big endian */ +struct ar5523_fwblock { + __be32 flags; +#define AR5523_WRITE_BLOCK (1 << 4) + + __be32 len; +#define AR5523_MAX_FWBLOCK_SIZE 2048 + + __be32 total; + __be32 remain; + __be32 rxtotal; + __be32 pad[123]; +} __packed; + +#define AR5523_MAX_RXCMDSZ 1024 +#define AR5523_MAX_TXCMDSZ 1024 + +struct ar5523_cmd_hdr { + __be32 len; + __be32 code; +/* NB: these are defined for rev 1.5 firmware; rev 1.6 is different */ +/* messages from Host -> Target */ +#define WDCMSG_HOST_AVAILABLE 0x01 +#define WDCMSG_BIND 0x02 +#define WDCMSG_TARGET_RESET 0x03 +#define WDCMSG_TARGET_GET_CAPABILITY 0x04 +#define WDCMSG_TARGET_SET_CONFIG 0x05 +#define WDCMSG_TARGET_GET_STATUS 0x06 +#define WDCMSG_TARGET_GET_STATS 0x07 +#define WDCMSG_TARGET_START 0x08 +#define WDCMSG_TARGET_STOP 0x09 +#define WDCMSG_TARGET_ENABLE 0x0a +#define WDCMSG_TARGET_DISABLE 0x0b +#define WDCMSG_CREATE_CONNECTION 0x0c +#define WDCMSG_UPDATE_CONNECT_ATTR 0x0d +#define WDCMSG_DELETE_CONNECT 0x0e +#define WDCMSG_SEND 0x0f +#define WDCMSG_FLUSH 0x10 +/* messages from Target -> Host */ +#define WDCMSG_STATS_UPDATE 0x11 +#define WDCMSG_BMISS 0x12 +#define WDCMSG_DEVICE_AVAIL 0x13 +#define WDCMSG_SEND_COMPLETE 0x14 +#define WDCMSG_DATA_AVAIL 0x15 +#define WDCMSG_SET_PWR_MODE 0x16 +#define WDCMSG_BMISS_ACK 0x17 +#define WDCMSG_SET_LED_STEADY 0x18 +#define WDCMSG_SET_LED_BLINK 0x19 +/* more messages */ +#define WDCMSG_SETUP_BEACON_DESC 0x1a +#define WDCMSG_BEACON_INIT 0x1b +#define WDCMSG_RESET_KEY_CACHE 0x1c +#define WDCMSG_RESET_KEY_CACHE_ENTRY 0x1d +#define WDCMSG_SET_KEY_CACHE_ENTRY 0x1e +#define WDCMSG_SET_DECOMP_MASK 0x1f +#define WDCMSG_SET_REGULATORY_DOMAIN 0x20 +#define WDCMSG_SET_LED_STATE 0x21 +#define WDCMSG_WRITE_ASSOCID 0x22 +#define WDCMSG_SET_STA_BEACON_TIMERS 0x23 +#define WDCMSG_GET_TSF 0x24 +#define WDCMSG_RESET_TSF 0x25 +#define WDCMSG_SET_ADHOC_MODE 0x26 +#define WDCMSG_SET_BASIC_RATE 0x27 +#define WDCMSG_MIB_CONTROL 0x28 +#define WDCMSG_GET_CHANNEL_DATA 0x29 +#define WDCMSG_GET_CUR_RSSI 0x2a +#define WDCMSG_SET_ANTENNA_SWITCH 0x2b +#define WDCMSG_USE_SHORT_SLOT_TIME 0x2f +#define WDCMSG_SET_POWER_MODE 0x30 +#define WDCMSG_SETUP_PSPOLL_DESC 0x31 +#define WDCMSG_SET_RX_MULTICAST_FILTER 0x32 +#define WDCMSG_RX_FILTER 0x33 +#define WDCMSG_PER_CALIBRATION 0x34 +#define WDCMSG_RESET 0x35 +#define WDCMSG_DISABLE 0x36 +#define WDCMSG_PHY_DISABLE 0x37 +#define WDCMSG_SET_TX_POWER_LIMIT 0x38 +#define WDCMSG_SET_TX_QUEUE_PARAMS 0x39 +#define WDCMSG_SETUP_TX_QUEUE 0x3a +#define WDCMSG_RELEASE_TX_QUEUE 0x3b +#define WDCMSG_SET_DEFAULT_KEY 0x43 + + __u32 priv; /* driver private data, + don't care about endianess */ + __be32 magic; + __be32 reserved2[4]; +}; + +struct ar5523_cmd_host_available { + __be32 sw_ver_major; + __be32 sw_ver_minor; + __be32 sw_ver_patch; + __be32 sw_ver_build; +} __packed; + +#define ATH_SW_VER_MAJOR 1 +#define ATH_SW_VER_MINOR 5 +#define ATH_SW_VER_PATCH 0 +#define ATH_SW_VER_BUILD 9999 + +struct ar5523_chunk { + u8 seqnum; /* sequence number for ordering */ + u8 flags; +#define UATH_CFLAGS_FINAL 0x01 /* final chunk of a msg */ +#define UATH_CFLAGS_RXMSG 0x02 /* chunk contains rx completion */ +#define UATH_CFLAGS_DEBUG 0x04 /* for debugging */ + __be16 length; /* chunk size in bytes */ + /* chunk data follows */ +} __packed; + +/* + * Message format for a WDCMSG_DATA_AVAIL message from Target to Host. + */ +struct ar5523_rx_desc { + __be32 len; /* msg length including header */ + __be32 code; /* WDCMSG_DATA_AVAIL */ + __be32 gennum; /* generation number */ + __be32 status; /* start of RECEIVE_INFO */ +#define UATH_STATUS_OK 0 +#define UATH_STATUS_STOP_IN_PROGRESS 1 +#define UATH_STATUS_CRC_ERR 2 +#define UATH_STATUS_PHY_ERR 3 +#define UATH_STATUS_DECRYPT_CRC_ERR 4 +#define UATH_STATUS_DECRYPT_MIC_ERR 5 +#define UATH_STATUS_DECOMP_ERR 6 +#define UATH_STATUS_KEY_ERR 7 +#define UATH_STATUS_ERR 8 + __be32 tstamp_low; /* low-order 32-bits of rx timestamp */ + __be32 tstamp_high; /* high-order 32-bits of rx timestamp */ + __be32 framelen; /* frame length */ + __be32 rate; /* rx rate code */ + __be32 antenna; + __be32 rssi; + __be32 channel; + __be32 phyerror; + __be32 connix; /* key table ix for bss traffic */ + __be32 decrypterror; + __be32 keycachemiss; + __be32 pad; /* XXX? */ +} __packed; + +struct ar5523_tx_desc { + __be32 msglen; + __be32 msgid; /* msg id (supplied by host) */ + __be32 type; /* opcode: WDMSG_SEND or WDCMSG_FLUSH */ + __be32 txqid; /* tx queue id and flags */ +#define UATH_TXQID_MASK 0x0f +#define UATH_TXQID_MINRATE 0x10 /* use min tx rate */ +#define UATH_TXQID_FF 0x20 /* content is fast frame */ + __be32 connid; /* tx connection id */ +#define UATH_ID_INVALID 0xffffffff /* for sending prior to connection */ + __be32 flags; /* non-zero if response desired */ +#define UATH_TX_NOTIFY (1 << 24) /* f/w will send a UATH_NOTIF_TX */ + __be32 buflen; /* payload length */ +} __packed; + + +#define AR5523_ID_BSS 2 +#define AR5523_ID_BROADCAST 0xffffffff + +/* structure for command UATH_CMD_WRITE_MAC */ +struct ar5523_write_mac { + __be32 reg; + __be32 len; + u8 data[32]; +} __packed; + +struct ar5523_cmd_rateset { + __u8 length; +#define AR5523_MAX_NRATES 32 + __u8 set[AR5523_MAX_NRATES]; +}; + +struct ar5523_cmd_set_associd { /* AR5523_WRITE_ASSOCID */ + __be32 defaultrateix; + __be32 associd; + __be32 timoffset; + __be32 turboprime; + __u8 bssid[6]; +} __packed; + +/* structure for command WDCMSG_RESET */ +struct ar5523_cmd_reset { + __be32 flags; /* channel flags */ +#define UATH_CHAN_TURBO 0x0100 +#define UATH_CHAN_CCK 0x0200 +#define UATH_CHAN_OFDM 0x0400 +#define UATH_CHAN_2GHZ 0x1000 +#define UATH_CHAN_5GHZ 0x2000 + __be32 freq; /* channel frequency */ + __be32 maxrdpower; + __be32 cfgctl; + __be32 twiceantennareduction; + __be32 channelchange; + __be32 keeprccontent; +} __packed; + +/* structure for command WDCMSG_SET_BASIC_RATE */ +struct ar5523_cmd_rates { + __be32 connid; + __be32 keeprccontent; + __be32 size; + struct ar5523_cmd_rateset rateset; +} __packed; + +enum { + WLAN_MODE_NONE = 0, + WLAN_MODE_11b, + WLAN_MODE_11a, + WLAN_MODE_11g, + WLAN_MODE_11a_TURBO, + WLAN_MODE_11g_TURBO, + WLAN_MODE_11a_TURBO_PRIME, + WLAN_MODE_11g_TURBO_PRIME, + WLAN_MODE_11a_XR, + WLAN_MODE_11g_XR, +}; + +struct ar5523_cmd_connection_attr { + __be32 longpreambleonly; + struct ar5523_cmd_rateset rateset; + __be32 wlanmode; +} __packed; + +/* structure for command AR5523_CREATE_CONNECTION */ +struct ar5523_cmd_create_connection { + __be32 connid; + __be32 bssid; + __be32 size; + struct ar5523_cmd_connection_attr connattr; +} __packed; + +struct ar5523_cmd_ledsteady { /* WDCMSG_SET_LED_STEADY */ + __be32 lednum; +#define UATH_LED_LINK 0 +#define UATH_LED_ACTIVITY 1 + __be32 ledmode; +#define UATH_LED_OFF 0 +#define UATH_LED_ON 1 +} __packed; + +struct ar5523_cmd_ledblink { /* WDCMSG_SET_LED_BLINK */ + __be32 lednum; + __be32 ledmode; + __be32 blinkrate; + __be32 slowmode; +} __packed; + +struct ar5523_cmd_ledstate { /* WDCMSG_SET_LED_STATE */ + __be32 connected; +} __packed; + +struct ar5523_cmd_txq_attr { + __be32 priority; + __be32 aifs; + __be32 logcwmin; + __be32 logcwmax; + __be32 bursttime; + __be32 mode; + __be32 qflags; +} __packed; + +struct ar5523_cmd_txq_setup { /* WDCMSG_SETUP_TX_QUEUE */ + __be32 qid; + __be32 len; + struct ar5523_cmd_txq_attr attr; +} __packed; + +struct ar5523_cmd_rx_filter { /* WDCMSG_RX_FILTER */ + __be32 bits; +#define UATH_FILTER_RX_UCAST 0x00000001 +#define UATH_FILTER_RX_MCAST 0x00000002 +#define UATH_FILTER_RX_BCAST 0x00000004 +#define UATH_FILTER_RX_CONTROL 0x00000008 +#define UATH_FILTER_RX_BEACON 0x00000010 /* beacon frames */ +#define UATH_FILTER_RX_PROM 0x00000020 /* promiscuous mode */ +#define UATH_FILTER_RX_PHY_ERR 0x00000040 /* phy errors */ +#define UATH_FILTER_RX_PHY_RADAR 0x00000080 /* radar phy errors */ +#define UATH_FILTER_RX_XR_POOL 0x00000400 /* XR group polls */ +#define UATH_FILTER_RX_PROBE_REQ 0x00000800 + __be32 op; +#define UATH_FILTER_OP_INIT 0x0 +#define UATH_FILTER_OP_SET 0x1 +#define UATH_FILTER_OP_CLEAR 0x2 +#define UATH_FILTER_OP_TEMP 0x3 +#define UATH_FILTER_OP_RESTORE 0x4 +} __packed; + +enum { + CFG_NONE, /* Sentinal to indicate "no config" */ + CFG_REG_DOMAIN, /* Regulatory Domain */ + CFG_RATE_CONTROL_ENABLE, + CFG_DEF_XMIT_DATA_RATE, /* NB: if rate control is not enabled */ + CFG_HW_TX_RETRIES, + CFG_SW_TX_RETRIES, + CFG_SLOW_CLOCK_ENABLE, + CFG_COMP_PROC, + CFG_USER_RTS_THRESHOLD, + CFG_XR2NORM_RATE_THRESHOLD, + CFG_XRMODE_SWITCH_COUNT, + CFG_PROTECTION_TYPE, + CFG_BURST_SEQ_THRESHOLD, + CFG_ABOLT, + CFG_IQ_LOG_COUNT_MAX, + CFG_MODE_CTS, + CFG_WME_ENABLED, + CFG_GPRS_CBR_PERIOD, + CFG_SERVICE_TYPE, + /* MAC Address to use. Overrides EEPROM */ + CFG_MAC_ADDR, + CFG_DEBUG_EAR, + CFG_INIT_REGS, + /* An ID for use in error & debug messages */ + CFG_DEBUG_ID, + CFG_COMP_WIN_SZ, + CFG_DIVERSITY_CTL, + CFG_TP_SCALE, + CFG_TPC_HALF_DBM5, + CFG_TPC_HALF_DBM2, + CFG_OVERRD_TX_POWER, + CFG_USE_32KHZ_CLOCK, + CFG_GMODE_PROTECTION, + CFG_GMODE_PROTECT_RATE_INDEX, + CFG_GMODE_NON_ERP_PREAMBLE, + CFG_WDC_TRANSPORT_CHUNK_SIZE, +}; + +enum { + /* Sentinal to indicate "no capability" */ + CAP_NONE, + CAP_ALL, /* ALL capabilities */ + CAP_TARGET_VERSION, + CAP_TARGET_REVISION, + CAP_MAC_VERSION, + CAP_MAC_REVISION, + CAP_PHY_REVISION, + CAP_ANALOG_5GHz_REVISION, + CAP_ANALOG_2GHz_REVISION, + /* Target supports WDC message debug features */ + CAP_DEBUG_WDCMSG_SUPPORT, + + CAP_REG_DOMAIN, + CAP_COUNTRY_CODE, + CAP_REG_CAP_BITS, + + CAP_WIRELESS_MODES, + CAP_CHAN_SPREAD_SUPPORT, + CAP_SLEEP_AFTER_BEACON_BROKEN, + CAP_COMPRESS_SUPPORT, + CAP_BURST_SUPPORT, + CAP_FAST_FRAMES_SUPPORT, + CAP_CHAP_TUNING_SUPPORT, + CAP_TURBOG_SUPPORT, + CAP_TURBO_PRIME_SUPPORT, + CAP_DEVICE_TYPE, + CAP_XR_SUPPORT, + CAP_WME_SUPPORT, + CAP_TOTAL_QUEUES, + CAP_CONNECTION_ID_MAX, /* Should absorb CAP_KEY_CACHE_SIZE */ + + CAP_LOW_5GHZ_CHAN, + CAP_HIGH_5GHZ_CHAN, + CAP_LOW_2GHZ_CHAN, + CAP_HIGH_2GHZ_CHAN, + + CAP_MIC_AES_CCM, + CAP_MIC_CKIP, + CAP_MIC_TKIP, + CAP_MIC_TKIP_WME, + CAP_CIPHER_AES_CCM, + CAP_CIPHER_CKIP, + CAP_CIPHER_TKIP, + + CAP_TWICE_ANTENNAGAIN_5G, + CAP_TWICE_ANTENNAGAIN_2G, +}; + +enum { + ST_NONE, /* Sentinal to indicate "no status" */ + ST_ALL, + ST_SERVICE_TYPE, + ST_WLAN_MODE, + ST_FREQ, + ST_BAND, + ST_LAST_RSSI, + ST_PS_FRAMES_DROPPED, + ST_CACHED_DEF_ANT, + ST_COUNT_OTHER_RX_ANT, + ST_USE_FAST_DIVERSITY, + ST_MAC_ADDR, + ST_RX_GENERATION_NUM, + ST_TX_QUEUE_DEPTH, + ST_SERIAL_NUMBER, + ST_WDC_TRANSPORT_CHUNK_SIZE, +}; + +enum { + TARGET_DEVICE_AWAKE, + TARGET_DEVICE_SLEEP, + TARGET_DEVICE_PWRDN, + TARGET_DEVICE_PWRSAVE, + TARGET_DEVICE_SUSPEND, + TARGET_DEVICE_RESUME, +}; + +/* this is in net/ieee80211.h, but that conflicts with the mac80211 headers */ +#define IEEE80211_2ADDR_LEN 16 + +#define AR5523_MIN_RXBUFSZ \ + (((sizeof(__be32) + IEEE80211_2ADDR_LEN + \ + sizeof(struct ar5523_rx_desc)) + 3) & ~3) diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 7089f8160ad..277089963eb 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -301,7 +301,7 @@ static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) static bool ath6kl_is_wpa_ie(const u8 *pos) { - return pos[0] == WLAN_EID_WPA && pos[1] >= 4 && + return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && pos[5] == 0x01; } @@ -3651,7 +3651,7 @@ int ath6kl_cfg80211_init(struct ath6kl *ar) if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, ar->fw_capabilities)) - ar->wiphy->features = NL80211_FEATURE_INACTIVITY_TIMER; + ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; ar->wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 84b558d126c..162401f22f8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -276,6 +276,11 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains) offset_array[i], REG_READ(ah, offset_array[i])); + if (AR_SREV_9565(ah) && + (iCoff == 63 || qCoff == 63 || + iCoff == -63 || qCoff == -63)) + return; + REG_RMW_FIELD(ah, offset_array[i], AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF, iCoff); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 5bbe5057ba1..c86cb640004 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -18,6 +18,7 @@ #include "hw.h" #include "ar9003_phy.h" #include "ar9003_eeprom.h" +#include "ar9003_mci.h" #define COMP_HDR_LEN 4 #define COMP_CKSUM_LEN 2 @@ -41,7 +42,6 @@ static int ar9003_hw_power_interpolate(int32_t x, int32_t *px, int32_t *py, u_int16_t np); - static const struct ar9300_eeprom ar9300_default = { .eepromVersion = 2, .templateVersion = 2, @@ -2989,7 +2989,7 @@ static u32 ath9k_hw_ar9300_get_eeprom(struct ath_hw *ah, case EEP_PAPRD: if (AR_SREV_9462(ah)) return false; - if (!ah->config.enable_paprd); + if (!ah->config.enable_paprd) return false; return !!(pBase->featureEnable & BIT(5)); case EEP_CHAIN_MASK_REDUCE: @@ -3601,7 +3601,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz) * 7:4 R/W SWITCH_TABLE_COM_SPDT_WLAN_IDLE * SWITCH_TABLE_COM_SPDT_WLAN_IDLE */ - if (AR_SREV_9462_20_OR_LATER(ah)) { + if (AR_SREV_9462_20(ah) || AR_SREV_9565(ah)) { value = ar9003_switch_com_spdt_get(ah, is2ghz); REG_RMW_FIELD(ah, AR_PHY_GLB_CONTROL, AR_SWITCH_TABLE_COM_SPDT_ALL, value); @@ -5037,16 +5037,28 @@ static void ar9003_hw_set_power_per_rate_table(struct ath_hw *ah, case CTL_5GHT20: case CTL_2GHT20: for (i = ALL_TARGET_HT20_0_8_16; - i <= ALL_TARGET_HT20_23; i++) + i <= ALL_TARGET_HT20_23; i++) { pPwrArray[i] = (u8)min((u16)pPwrArray[i], minCtlPower); + if (ath9k_hw_mci_is_enabled(ah)) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + ar9003_mci_get_max_txpower(ah, + pCtlMode[ctlMode])); + } break; case CTL_5GHT40: case CTL_2GHT40: for (i = ALL_TARGET_HT40_0_8_16; - i <= ALL_TARGET_HT40_23; i++) + i <= ALL_TARGET_HT40_23; i++) { pPwrArray[i] = (u8)min((u16)pPwrArray[i], minCtlPower); + if (ath9k_hw_mci_is_enabled(ah)) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + ar9003_mci_get_max_txpower(ah, + pCtlMode[ctlMode])); + } break; default: break; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c index 1a36fa26263..0693cd95b74 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c @@ -219,10 +219,10 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) /* Awake -> Sleep Setting */ INIT_INI_ARRAY(&ah->iniPcieSerdes, - ar9462_pciephy_pll_on_clkreq_disable_L1_2p0); + ar9462_pciephy_clkreq_disable_L1_2p0); /* Sleep -> Awake Setting */ INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower, - ar9462_pciephy_pll_on_clkreq_disable_L1_2p0); + ar9462_pciephy_clkreq_disable_L1_2p0); /* Fast clock modal settings */ INIT_INI_ARRAY(&ah->iniModesFastClock, @@ -328,9 +328,9 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) ar9565_1p0_Modes_lowest_ob_db_tx_gain_table); INIT_INI_ARRAY(&ah->iniPcieSerdes, - ar9565_1p0_pciephy_pll_on_clkreq_disable_L1); + ar9565_1p0_pciephy_clkreq_disable_L1); INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower, - ar9565_1p0_pciephy_pll_on_clkreq_disable_L1); + ar9565_1p0_pciephy_clkreq_disable_L1); INIT_INI_ARRAY(&ah->iniModesFastClock, ar9565_1p0_modes_fast_clock); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index 44c202ce6c6..42b4412d679 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -750,6 +750,9 @@ int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan, mci_hw->bt_state = MCI_BT_AWAKE; + REG_CLR_BIT(ah, AR_PHY_TIMING4, + 1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT); + if (caldata) { caldata->done_txiqcal_once = false; caldata->done_txclcal_once = false; @@ -759,6 +762,9 @@ int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (!ath9k_hw_init_cal(ah, chan)) return -EIO; + REG_SET_BIT(ah, AR_PHY_TIMING4, + 1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT); + exit: ar9003_mci_enable_interrupt(ah); return 0; @@ -799,6 +805,9 @@ static void ar9003_mci_osla_setup(struct ath_hw *ah, bool enable) REG_RMW_FIELD(ah, AR_MCI_SCHD_TABLE_2, AR_MCI_SCHD_TABLE_2_MEM_BASED, 1); + if (AR_SREV_9565(ah)) + REG_RMW_FIELD(ah, AR_MCI_MISC, AR_MCI_MISC_HW_FIX_EN, 1); + if (!(mci->config & ATH_MCI_CONFIG_DISABLE_AGGR_THRESH)) { thresh = MS(mci->config, ATH_MCI_CONFIG_AGGR_THRESH); REG_RMW_FIELD(ah, AR_BTCOEX_CTRL, @@ -818,7 +827,7 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g, { struct ath_common *common = ath9k_hw_common(ah); struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci; - u32 regval; + u32 regval, i; ath_dbg(common, MCI, "MCI Reset (full_sleep = %d, is_2g = %d)\n", is_full_sleep, is_2g); @@ -847,11 +856,18 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g, SM(1, AR_BTCOEX_CTRL_WBTIMER_EN) | SM(1, AR_BTCOEX_CTRL_PA_SHARED) | SM(1, AR_BTCOEX_CTRL_LNA_SHARED) | - SM(2, AR_BTCOEX_CTRL_NUM_ANTENNAS) | - SM(3, AR_BTCOEX_CTRL_RX_CHAIN_MASK) | SM(0, AR_BTCOEX_CTRL_1_CHAIN_ACK) | SM(0, AR_BTCOEX_CTRL_1_CHAIN_BCN) | SM(0, AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN); + if (AR_SREV_9565(ah)) { + regval |= SM(1, AR_BTCOEX_CTRL_NUM_ANTENNAS) | + SM(1, AR_BTCOEX_CTRL_RX_CHAIN_MASK); + REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, + AR_BTCOEX_CTRL2_TX_CHAIN_MASK, 0x1); + } else { + regval |= SM(2, AR_BTCOEX_CTRL_NUM_ANTENNAS) | + SM(3, AR_BTCOEX_CTRL_RX_CHAIN_MASK); + } REG_WRITE(ah, AR_BTCOEX_CTRL, regval); @@ -865,9 +881,24 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g, REG_RMW_FIELD(ah, AR_BTCOEX_CTRL3, AR_BTCOEX_CTRL3_CONT_INFO_TIMEOUT, 20); - REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_RX_DEWEIGHT, 1); + REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_RX_DEWEIGHT, 0); REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0); + /* Set the time out to 3.125ms (5 BT slots) */ + REG_RMW_FIELD(ah, AR_BTCOEX_WL_LNA, AR_BTCOEX_WL_LNA_TIMEOUT, 0x3D090); + + /* concurrent tx priority */ + if (mci->config & ATH_MCI_CONFIG_CONCUR_TX) { + REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, + AR_BTCOEX_CTRL2_DESC_BASED_TXPWR_ENABLE, 0); + REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, + AR_BTCOEX_CTRL2_TXPWR_THRESH, 0x7f); + REG_RMW_FIELD(ah, AR_BTCOEX_CTRL, + AR_BTCOEX_CTRL_REDUCE_TXPWR, 0); + for (i = 0; i < 8; i++) + REG_WRITE(ah, AR_BTCOEX_MAX_TXPWR(i), 0x7f7f7f7f); + } + regval = MS(mci->config, ATH_MCI_CONFIG_CLK_DIV); REG_RMW_FIELD(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_CLK_DIV, regval); REG_SET_BIT(ah, AR_BTCOEX_CTRL, AR_BTCOEX_CTRL_MCI_MODE_EN); @@ -910,6 +941,9 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g, mci->ready = true; ar9003_mci_prep_interface(ah); + if (AR_SREV_9565(ah)) + REG_RMW_FIELD(ah, AR_MCI_DBG_CNT_CTRL, + AR_MCI_DBG_CNT_CTRL_ENABLE, 0); if (en_int) ar9003_mci_enable_interrupt(ah); @@ -1028,7 +1062,9 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force) if (!(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA)) ar9003_mci_osla_setup(ah, true); - REG_WRITE(ah, AR_SELFGEN_MASK, 0x02); + + if (AR_SREV_9462(ah)) + REG_WRITE(ah, AR_SELFGEN_MASK, 0x02); } else { ar9003_mci_send_lna_take(ah, true); udelay(5); @@ -1170,7 +1206,7 @@ EXPORT_SYMBOL(ar9003_mci_cleanup); u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type) { struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci; - u32 value = 0; + u32 value = 0, tsf; u8 query_type; switch (state_type) { @@ -1228,6 +1264,14 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type) ar9003_mci_send_coex_bt_status_query(ah, true, query_type); break; case MCI_STATE_RECOVER_RX: + tsf = ath9k_hw_gettsf32(ah); + if ((tsf - mci->last_recovery) <= MCI_RECOVERY_DUR_TSF) { + ath_dbg(ath9k_hw_common(ah), MCI, + "(MCI) ignore Rx recovery\n"); + break; + } + ath_dbg(ath9k_hw_common(ah), MCI, "(MCI) RECOVER RX\n"); + mci->last_recovery = tsf; ar9003_mci_prep_interface(ah); mci->query_bt = true; mci->need_flush_btinfo = true; @@ -1426,3 +1470,17 @@ void ar9003_mci_send_wlan_channels(struct ath_hw *ah) ar9003_mci_send_coex_wlan_channels(ah, true); } EXPORT_SYMBOL(ar9003_mci_send_wlan_channels); + +u16 ar9003_mci_get_max_txpower(struct ath_hw *ah, u8 ctlmode) +{ + if (!ah->btcoex_hw.mci.concur_tx) + goto out; + + if (ctlmode == CTL_2GHT20) + return ATH_BTCOEX_HT20_MAX_TXPOWER; + else if (ctlmode == CTL_2GHT40) + return ATH_BTCOEX_HT40_MAX_TXPOWER; + +out: + return -1; +} diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h index 2a2d0188961..66d7ab9f920 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h @@ -18,6 +18,7 @@ #define AR9003_MCI_H #define MCI_FLAG_DISABLE_TIMESTAMP 0x00000001 /* Disable time stamp */ +#define MCI_RECOVERY_DUR_TSF (100 * 1000) /* 100 ms */ /* Default remote BT device MCI COEX version */ #define MCI_GPM_COEX_MAJOR_VERSION_DEFAULT 3 @@ -125,6 +126,7 @@ enum ath_mci_gpm_coex_profile_type { MCI_GPM_COEX_PROFILE_HID, MCI_GPM_COEX_PROFILE_BNEP, MCI_GPM_COEX_PROFILE_VOICE, + MCI_GPM_COEX_PROFILE_A2DPVO, MCI_GPM_COEX_PROFILE_MAX }; @@ -196,7 +198,6 @@ enum mci_state_type { MCI_STATE_SEND_WLAN_COEX_VERSION, MCI_STATE_SEND_VERSION_QUERY, MCI_STATE_SEND_STATUS_QUERY, - MCI_STATE_SET_CONCUR_TX_PRI, MCI_STATE_RECOVER_RX, MCI_STATE_NEED_FTP_STOMP, MCI_STATE_DEBUG, @@ -278,6 +279,7 @@ void ar9003_mci_get_isr(struct ath_hw *ah, enum ath9k_int *masked); void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah); void ar9003_mci_set_power_awake(struct ath_hw *ah); void ar9003_mci_check_gpm_offset(struct ath_hw *ah); +u16 ar9003_mci_get_max_txpower(struct ath_hw *ah, u8 ctlmode); #else @@ -324,6 +326,10 @@ static inline void ar9003_mci_set_power_awake(struct ath_hw *ah) static inline void ar9003_mci_check_gpm_offset(struct ath_hw *ah) { } +static inline u16 ar9003_mci_get_max_txpower(struct ath_hw *ah, u8 ctlmode) +{ + return -1; +} #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ #endif diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h index 9a48e3d2f23..8f585233a78 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h @@ -32,6 +32,7 @@ #define AR_PHY_SPUR_REG (AR_CHAN_BASE + 0x1c) #define AR_PHY_RX_IQCAL_CORR_B0 (AR_CHAN_BASE + 0xdc) #define AR_PHY_TX_IQCAL_CONTROL_3 (AR_CHAN_BASE + 0xb0) +#define AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT 16 #define AR_PHY_TIMING11_SPUR_FREQ_SD 0x3FF00000 #define AR_PHY_TIMING11_SPUR_FREQ_SD_S 20 diff --git a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h index 843e79f67ff..0c2ac0c6dc8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h @@ -768,9 +768,9 @@ static const u32 ar9565_1p0_Modes_lowest_ob_db_tx_gain_table[][5] = { {0x00016054, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, }; -static const u32 ar9565_1p0_pciephy_pll_on_clkreq_disable_L1[][2] = { +static const u32 ar9565_1p0_pciephy_clkreq_disable_L1[][2] = { /* Addr allmodes */ - {0x00018c00, 0x18212ede}, + {0x00018c00, 0x18213ede}, {0x00018c04, 0x000801d8}, {0x00018c08, 0x0003780c}, }; diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index dfe6a4707fd..4e125d8904a 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -437,6 +437,7 @@ void ath9k_set_beacon(struct ath_softc *sc); #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */ #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ +#define ATH_ANI_MAX_SKIP_COUNT 10 #define ATH_PAPRD_TIMEOUT 100 /* msecs */ #define ATH_PLL_WORK_INTERVAL 100 @@ -478,6 +479,7 @@ struct ath_btcoex { u32 btscan_no_stomp; /* in usec */ u32 duty_cycle; u32 bt_wait_time; + int rssi_count; struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */ struct ath_mci_profile mci; }; @@ -492,6 +494,7 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc); void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status); u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen); void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc); +int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 len, u32 size); #else static inline int ath9k_init_btcoex(struct ath_softc *sc) { @@ -518,6 +521,11 @@ static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc) { } +static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, + u32 len, u32 size) +{ + return 0; +} #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ struct ath9k_wow_pattern { @@ -642,6 +650,7 @@ enum sc_op_flags { #define PS_WAIT_FOR_PSPOLL_DATA BIT(2) #define PS_WAIT_FOR_TX_ACK BIT(3) #define PS_BEACON_SYNC BIT(4) +#define PS_WAIT_FOR_ANI BIT(5) struct ath_rate_table; diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c index 419e9a3f2fe..c90e9bc4b02 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.c +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -195,7 +195,7 @@ void ath9k_hw_btcoex_init_mci(struct ath_hw *ah) ah->btcoex_hw.mci.need_flush_btinfo = false; ah->btcoex_hw.mci.wlan_cal_seq = 0; ah->btcoex_hw.mci.wlan_cal_done = 0; - ah->btcoex_hw.mci.config = 0x2201; + ah->btcoex_hw.mci.config = (AR_SREV_9462(ah)) ? 0x2201 : 0xa4c1; } EXPORT_SYMBOL(ath9k_hw_btcoex_init_mci); @@ -218,27 +218,45 @@ void ath9k_hw_btcoex_set_weight(struct ath_hw *ah, enum ath_stomp_type stomp_type) { struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; + struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci; + u8 txprio_shift[] = { 24, 16, 16, 0 }; /* tx priority weight */ + bool concur_tx = (mci_hw->concur_tx && btcoex_hw->tx_prio[stomp_type]); + const u32 *weight = ar9003_wlan_weights[stomp_type]; + int i; - if (AR_SREV_9300_20_OR_LATER(ah)) { - const u32 *weight = ar9003_wlan_weights[stomp_type]; - int i; - - if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) { - if ((stomp_type == ATH_BTCOEX_STOMP_LOW) && - btcoex_hw->mci.stomp_ftp) - stomp_type = ATH_BTCOEX_STOMP_LOW_FTP; - weight = mci_wlan_weights[stomp_type]; - } - - for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) { - btcoex_hw->bt_weight[i] = AR9300_BT_WGHT; - btcoex_hw->wlan_weight[i] = weight[i]; - } - } else { + if (!AR_SREV_9300_20_OR_LATER(ah)) { btcoex_hw->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) | SM(wlan_weight, AR_BTCOEX_WL_WGHT); + return; + } + + if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) { + enum ath_stomp_type stype = + ((stomp_type == ATH_BTCOEX_STOMP_LOW) && + btcoex_hw->mci.stomp_ftp) ? + ATH_BTCOEX_STOMP_LOW_FTP : stomp_type; + weight = mci_wlan_weights[stype]; } + + for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) { + btcoex_hw->bt_weight[i] = AR9300_BT_WGHT; + btcoex_hw->wlan_weight[i] = weight[i]; + if (concur_tx && i) { + btcoex_hw->wlan_weight[i] &= + ~(0xff << txprio_shift[i-1]); + btcoex_hw->wlan_weight[i] |= + (btcoex_hw->tx_prio[stomp_type] << + txprio_shift[i-1]); + } + } + /* Last WLAN weight has to be adjusted wrt tx priority */ + if (concur_tx) { + btcoex_hw->wlan_weight[i-1] &= ~(0xff << txprio_shift[i-1]); + btcoex_hw->wlan_weight[i-1] |= (btcoex_hw->tx_prio[stomp_type] + << txprio_shift[i-1]); + } + } EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight); @@ -385,3 +403,13 @@ void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah, } } EXPORT_SYMBOL(ath9k_hw_btcoex_bt_stomp); + +void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio) +{ + struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; + int i; + + for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++) + btcoex->tx_prio[i] = stomp_txprio[i]; +} +EXPORT_SYMBOL(ath9k_hw_btcoex_set_concur_txprio); diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h index 385197ad79b..2f84ab273d0 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.h +++ b/drivers/net/wireless/ath/ath9k/btcoex.h @@ -39,6 +39,9 @@ #define ATH_BTCOEX_RX_WAIT_TIME 100 #define ATH_BTCOEX_STOMP_FTP_THRESH 5 +#define ATH_BTCOEX_HT20_MAX_TXPOWER 0x14 +#define ATH_BTCOEX_HT40_MAX_TXPOWER 0x10 + #define AR9300_NUM_BT_WEIGHTS 4 #define AR9300_NUM_WLAN_WEIGHTS 4 /* Defines the BT AR_BT_COEX_WGHT used */ @@ -84,6 +87,8 @@ struct ath9k_hw_mci { u8 bt_ver_minor; u8 bt_state; u8 stomp_ftp; + bool concur_tx; + u32 last_recovery; }; struct ath_btcoex_hw { @@ -98,6 +103,7 @@ struct ath_btcoex_hw { u32 bt_coex_mode2; /* Register setting for AR_BT_COEX_MODE2 */ u32 bt_weight[AR9300_NUM_BT_WEIGHTS]; u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS]; + u8 tx_prio[ATH_BTCOEX_STOMP_MAX]; }; void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah); @@ -112,5 +118,6 @@ void ath9k_hw_btcoex_set_weight(struct ath_hw *ah, void ath9k_hw_btcoex_disable(struct ath_hw *ah); void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah, enum ath_stomp_type stomp_type); +void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio); #endif diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index e5cceb07757..f3448a032e6 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -410,6 +410,7 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, ah->caldata->channel = chan->channel; ah->caldata->channelFlags = chan->channelFlags & ~CHANNEL_CW_INT; + ah->caldata->chanmode = chan->chanmode; h = ah->caldata->nfCalHist; default_nf = ath9k_hw_get_default_nf(ah, chan); for (i = 0; i < NUM_NF_READINGS; i++) { diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 6727b566d29..a8be94b2a53 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -1586,6 +1586,35 @@ static const struct file_operations fops_samps = { #endif +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT +static ssize_t read_file_btcoex(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + u32 len = 0, size = 1500; + char *buf; + size_t retval; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + len = ath9k_dump_btcoex(sc, buf, len, size); + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static const struct file_operations fops_btcoex = { + .read = read_file_btcoex, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; +#endif + int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -1658,6 +1687,9 @@ int ath9k_init_debug(struct ath_hw *ah) sc->debug.debugfs_phy, &sc->sc_ah->gpio_val); debugfs_create_file("diversity", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_ant_diversity); - +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT + debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_btcoex); +#endif return 0; } diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index d9ed141a053..a8ea57b9f49 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -187,6 +187,24 @@ static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) } } +static void ath_mci_ftp_adjust(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_hw *ah = sc->sc_ah; + + if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) { + if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) && + (mci->num_pan || mci->num_other_acl)) + ah->btcoex_hw.mci.stomp_ftp = + (sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH); + else + ah->btcoex_hw.mci.stomp_ftp = false; + btcoex->bt_wait_time = 0; + sc->rx.num_pkts = 0; + } +} + /* * This is the master bt coex timer which runs for every * 45ms, bt traffic will be given priority during 55% of this @@ -197,41 +215,43 @@ static void ath_btcoex_period_timer(unsigned long data) struct ath_softc *sc = (struct ath_softc *) data; struct ath_hw *ah = sc->sc_ah; struct ath_btcoex *btcoex = &sc->btcoex; - struct ath_mci_profile *mci = &btcoex->mci; + enum ath_stomp_type stomp_type; u32 timer_period; - bool is_btscan; unsigned long flags; spin_lock_irqsave(&sc->sc_pm_lock, flags); if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) { + btcoex->bt_wait_time += btcoex->btcoex_period; spin_unlock_irqrestore(&sc->sc_pm_lock, flags); goto skip_hw_wakeup; } spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + ath9k_mci_update_rssi(sc); + ath9k_ps_wakeup(sc); + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) ath_detect_bt_priority(sc); - is_btscan = test_bit(BT_OP_SCAN, &btcoex->op_flags); - btcoex->bt_wait_time += btcoex->btcoex_period; - if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) { - if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) && - (mci->num_pan || mci->num_other_acl)) - ah->btcoex_hw.mci.stomp_ftp = - (sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH); - else - ah->btcoex_hw.mci.stomp_ftp = false; - btcoex->bt_wait_time = 0; - sc->rx.num_pkts = 0; - } + if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) + ath_mci_ftp_adjust(sc); spin_lock_bh(&btcoex->btcoex_lock); - ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : - btcoex->bt_stomp_type); + stomp_type = btcoex->bt_stomp_type; + timer_period = btcoex->btcoex_no_stomp; + + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) { + if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) { + stomp_type = ATH_BTCOEX_STOMP_ALL; + timer_period = btcoex->btscan_no_stomp; + } + } + ath9k_hw_btcoex_bt_stomp(ah, stomp_type); ath9k_hw_btcoex_enable(ah); + spin_unlock_bh(&btcoex->btcoex_lock); /* @@ -243,17 +263,16 @@ static void ath_btcoex_period_timer(unsigned long data) if (btcoex->hw_timer_enabled) ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); - timer_period = is_btscan ? btcoex->btscan_no_stomp : - btcoex->btcoex_no_stomp; ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period, timer_period * 10); btcoex->hw_timer_enabled = true; } ath9k_ps_restore(sc); + skip_hw_wakeup: - timer_period = btcoex->btcoex_period; - mod_timer(&btcoex->period_timer, jiffies + msecs_to_jiffies(timer_period)); + mod_timer(&btcoex->period_timer, + jiffies + msecs_to_jiffies(btcoex->btcoex_period)); } /* @@ -273,7 +292,8 @@ static void ath_btcoex_no_stomp_timer(void *arg) spin_lock_bh(&btcoex->btcoex_lock); if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || - test_bit(BT_OP_SCAN, &btcoex->op_flags)) + (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && + test_bit(BT_OP_SCAN, &btcoex->op_flags))) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); @@ -474,4 +494,52 @@ int ath9k_init_btcoex(struct ath_softc *sc) return 0; } +int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 len, u32 size) +{ +#define ATH_DUMP_BTCOEX(_s, _val) \ + do { \ + len += snprintf(buf + len, size - len, \ + "%20s : %10d\n", _s, (_val)); \ + } while (0) + + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; + int i; + + ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci)); + ATH_DUMP_BTCOEX("Number of MGMT", mci->num_mgmt); + ATH_DUMP_BTCOEX("Number of SCO", mci->num_sco); + ATH_DUMP_BTCOEX("Number of A2DP", mci->num_a2dp); + ATH_DUMP_BTCOEX("Number of HID", mci->num_hid); + ATH_DUMP_BTCOEX("Number of PAN", mci->num_pan); + ATH_DUMP_BTCOEX("Number of ACL", mci->num_other_acl); + ATH_DUMP_BTCOEX("Number of BDR", mci->num_bdr); + ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit); + ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type); + ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period); + ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle); + ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time); + ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx); + ATH_DUMP_BTCOEX("Concur RSSI count", btcoex->rssi_count); + len += snprintf(buf + len, size - len, "BT Weights: "); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + len += snprintf(buf + len, size - len, "%08x ", + btcoex_hw->bt_weight[i]); + len += snprintf(buf + len, size - len, "\n"); + len += snprintf(buf + len, size - len, "WLAN Weights: "); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + len += snprintf(buf + len, size - len, "%08x ", + btcoex_hw->wlan_weight[i]); + len += snprintf(buf + len, size - len, "\n"); + len += snprintf(buf + len, size - len, "Tx Priorities: "); + for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++) + len += snprintf(buf + len, size - len, "%08x ", + btcoex_hw->tx_prio[i]); + len += snprintf(buf + len, size - len, "\n"); +#undef ATH_DUMP_BTCOEX + + return len; +} #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index d98255eb1b9..5ecf1287ddd 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -694,6 +694,20 @@ err_hw: return ret; } +static const struct ieee80211_iface_limit if_limits[] = { + { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_CLIENT) }, + { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_GO) }, +}; + +static const struct ieee80211_iface_combination if_comb = { + .limits = if_limits, + .n_limits = ARRAY_SIZE(if_limits), + .max_interfaces = 2, + .num_different_channels = 1, +}; + static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, struct ieee80211_hw *hw) { @@ -716,6 +730,9 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_P2P_CLIENT); + hw->wiphy->iface_combinations = &if_comb; + hw->wiphy->n_iface_combinations = 1; + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index ca78e33ca23..66f6a74c508 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -1036,26 +1036,6 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw, mutex_lock(&priv->mutex); - if (priv->nvifs >= ATH9K_HTC_MAX_VIF) { - mutex_unlock(&priv->mutex); - return -ENOBUFS; - } - - if (priv->num_ibss_vif || - (priv->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) { - ath_err(common, "IBSS coexistence with other modes is not allowed\n"); - mutex_unlock(&priv->mutex); - return -ENOBUFS; - } - - if (((vif->type == NL80211_IFTYPE_AP) || - (vif->type == NL80211_IFTYPE_ADHOC)) && - ((priv->num_ap_vif + priv->num_ibss_vif) >= ATH9K_HTC_MAX_BCN_VIF)) { - ath_err(common, "Max. number of beaconing interfaces reached\n"); - mutex_unlock(&priv->mutex); - return -ENOBUFS; - } - ath9k_htc_ps_wakeup(priv); memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); memcpy(&hvif.myaddr, vif->addr, ETH_ALEN); diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 8e1559aba49..71cd9f0c96a 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2153,9 +2153,6 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah) AR_RTC_FORCE_WAKE_EN); udelay(50); - if (ath9k_hw_mci_is_enabled(ah)) - ar9003_mci_set_power_awake(ah); - for (i = POWER_UP_TIME / 50; i > 0; i--) { val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M; if (val == AR_RTC_STATUS_ON) @@ -2171,6 +2168,9 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah) return false; } + if (ath9k_hw_mci_is_enabled(ah)) + ar9003_mci_set_power_awake(ah); + REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); return true; diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index dbc1b7a4cbf..3e73bfe2315 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -401,6 +401,7 @@ enum ath9k_int { struct ath9k_hw_cal_data { u16 channel; u32 channelFlags; + u32 chanmode; int32_t CalValid; int8_t iCoff; int8_t qCoff; @@ -834,6 +835,7 @@ struct ath_hw { int coarse_low[5]; int firpwr[5]; enum ath9k_ani_cmd ani_function; + u32 ani_skip_count; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT struct ath_btcoex_hw btcoex_hw; diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index fad3ccd5cd9..546bae93647 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -687,6 +687,7 @@ static const struct ieee80211_iface_combination if_comb = { .n_limits = ARRAY_SIZE(if_limits), .max_interfaces = 2048, .num_different_channels = 1, + .beacon_int_infra_match = true, }; void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 7b88b9c39cc..223b9693527 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -350,8 +350,18 @@ void ath_ani_calibrate(unsigned long data) ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; /* Only calibrate if awake */ - if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) + if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) { + if (++ah->ani_skip_count >= ATH_ANI_MAX_SKIP_COUNT) { + spin_lock_irqsave(&sc->sc_pm_lock, flags); + sc->ps_flags |= PS_WAIT_FOR_ANI; + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + } goto set_timer; + } + ah->ani_skip_count = 0; + spin_lock_irqsave(&sc->sc_pm_lock, flags); + sc->ps_flags &= ~PS_WAIT_FOR_ANI; + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); ath9k_ps_wakeup(sc); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index dd45edfa6ba..578a7234aa5 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -131,7 +131,8 @@ void ath9k_ps_restore(struct ath_softc *sc) !(sc->ps_flags & (PS_WAIT_FOR_BEACON | PS_WAIT_FOR_CAB | PS_WAIT_FOR_PSPOLL_DATA | - PS_WAIT_FOR_TX_ACK))) { + PS_WAIT_FOR_TX_ACK | + PS_WAIT_FOR_ANI))) { mode = ATH9K_PM_NETWORK_SLEEP; if (ath9k_hw_btcoex_is_enabled(sc->sc_ah)) ath9k_btcoex_stop_gen_timer(sc); @@ -292,6 +293,10 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, goto out; } + if (ath9k_hw_mci_is_enabled(sc->sc_ah) && + (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) + ath9k_mci_set_txpower(sc, true, false); + if (!ath_complete_reset(sc, true)) r = -EIO; @@ -1449,6 +1454,9 @@ static void ath9k_set_assoc_state(struct ath_softc *sc, sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON; spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + ath9k_mci_update_wlan_channels(sc, false); + ath_dbg(common, CONFIG, "Primary Station interface: %pM, BSSID: %pM\n", vif->addr, common->curbssid); @@ -1505,6 +1513,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, memset(common->curbssid, 0, ETH_ALEN); common->curaid = 0; ath9k_hw_write_associd(sc->sc_ah); + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + ath9k_mci_update_wlan_channels(sc, true); } } diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c index ec2d7c80756..0dd2cbb52d6 100644 --- a/drivers/net/wireless/ath/ath9k/mci.c +++ b/drivers/net/wireless/ath/ath9k/mci.c @@ -43,6 +43,7 @@ static bool ath_mci_add_profile(struct ath_common *common, struct ath_mci_profile_info *info) { struct ath_mci_profile_info *entry; + u8 voice_priority[] = { 110, 110, 110, 112, 110, 110, 114, 116, 118 }; if ((mci->num_sco == ATH_MCI_MAX_SCO_PROFILE) && (info->type == MCI_GPM_COEX_PROFILE_VOICE)) @@ -59,6 +60,12 @@ static bool ath_mci_add_profile(struct ath_common *common, memcpy(entry, info, 10); INC_PROF(mci, info); list_add_tail(&entry->list, &mci->info); + if (info->type == MCI_GPM_COEX_PROFILE_VOICE) { + if (info->voice_type < sizeof(voice_priority)) + mci->voice_priority = voice_priority[info->voice_type]; + else + mci->voice_priority = 110; + } return true; } @@ -150,7 +157,7 @@ static void ath_mci_update_scheme(struct ath_softc *sc) * For single PAN/FTP profile, allocate 35% for BT * to improve WLAN throughput. */ - btcoex->duty_cycle = 35; + btcoex->duty_cycle = AR_SREV_9565(sc->sc_ah) ? 40 : 35; btcoex->btcoex_period = 53; ath_dbg(common, MCI, "Single PAN/FTP bt period %d ms dutycycle %d\n", @@ -250,6 +257,57 @@ static void ath9k_mci_work(struct work_struct *work) ath_mci_update_scheme(sc); } +static void ath_mci_update_stomp_txprio(u8 cur_txprio, u8 *stomp_prio) +{ + if (cur_txprio < stomp_prio[ATH_BTCOEX_STOMP_NONE]) + stomp_prio[ATH_BTCOEX_STOMP_NONE] = cur_txprio; + + if (cur_txprio > stomp_prio[ATH_BTCOEX_STOMP_ALL]) + stomp_prio[ATH_BTCOEX_STOMP_ALL] = cur_txprio; + + if ((cur_txprio > ATH_MCI_HI_PRIO) && + (cur_txprio < stomp_prio[ATH_BTCOEX_STOMP_LOW])) + stomp_prio[ATH_BTCOEX_STOMP_LOW] = cur_txprio; +} + +static void ath_mci_set_concur_txprio(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + u8 stomp_txprio[] = { 0, 0, 0, 0 }; /* all, low, none, low_ftp */ + + if (mci->num_mgmt) { + stomp_txprio[ATH_BTCOEX_STOMP_ALL] = ATH_MCI_INQUIRY_PRIO; + if (!mci->num_pan && !mci->num_other_acl) + stomp_txprio[ATH_BTCOEX_STOMP_NONE] = + ATH_MCI_INQUIRY_PRIO; + } else { + u8 prof_prio[] = { 50, 90, 94, 52 };/* RFCOMM, A2DP, HID, PAN */ + + stomp_txprio[ATH_BTCOEX_STOMP_LOW] = + stomp_txprio[ATH_BTCOEX_STOMP_NONE] = 0xff; + + if (mci->num_sco) + ath_mci_update_stomp_txprio(mci->voice_priority, + stomp_txprio); + if (mci->num_other_acl) + ath_mci_update_stomp_txprio(prof_prio[0], stomp_txprio); + if (mci->num_a2dp) + ath_mci_update_stomp_txprio(prof_prio[1], stomp_txprio); + if (mci->num_hid) + ath_mci_update_stomp_txprio(prof_prio[2], stomp_txprio); + if (mci->num_pan) + ath_mci_update_stomp_txprio(prof_prio[3], stomp_txprio); + + if (stomp_txprio[ATH_BTCOEX_STOMP_NONE] == 0xff) + stomp_txprio[ATH_BTCOEX_STOMP_NONE] = 0; + + if (stomp_txprio[ATH_BTCOEX_STOMP_LOW] == 0xff) + stomp_txprio[ATH_BTCOEX_STOMP_LOW] = 0; + } + ath9k_hw_btcoex_set_concur_txprio(sc->sc_ah, stomp_txprio); +} + static u8 ath_mci_process_profile(struct ath_softc *sc, struct ath_mci_profile_info *info) { @@ -281,6 +339,7 @@ static u8 ath_mci_process_profile(struct ath_softc *sc, } else ath_mci_del_profile(common, mci, entry); + ath_mci_set_concur_txprio(sc); return 1; } @@ -314,6 +373,7 @@ static u8 ath_mci_process_status(struct ath_softc *sc, mci->num_mgmt++; } while (++i < ATH_MCI_MAX_PROFILE); + ath_mci_set_concur_txprio(sc); if (old_num_mgmt != mci->num_mgmt) return 1; @@ -600,3 +660,112 @@ void ath_mci_enable(struct ath_softc *sc) if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) sc->sc_ah->imask |= ATH9K_INT_MCI; } + +void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci; + struct ath9k_channel *chan = ah->curchan; + u32 channelmap[] = {0x00000000, 0xffff0000, 0xffffffff, 0x7fffffff}; + int i; + s16 chan_start, chan_end; + u16 wlan_chan; + + if (!chan || !IS_CHAN_2GHZ(chan)) + return; + + if (allow_all) + goto send_wlan_chan; + + wlan_chan = chan->channel - 2402; + + chan_start = wlan_chan - 10; + chan_end = wlan_chan + 10; + + if (chan->chanmode == CHANNEL_G_HT40PLUS) + chan_end += 20; + else if (chan->chanmode == CHANNEL_G_HT40MINUS) + chan_start -= 20; + + /* adjust side band */ + chan_start -= 7; + chan_end += 7; + + if (chan_start <= 0) + chan_start = 0; + if (chan_end >= ATH_MCI_NUM_BT_CHANNELS) + chan_end = ATH_MCI_NUM_BT_CHANNELS - 1; + + ath_dbg(ath9k_hw_common(ah), MCI, + "WLAN current channel %d mask BT channel %d - %d\n", + wlan_chan, chan_start, chan_end); + + for (i = chan_start; i < chan_end; i++) + MCI_GPM_CLR_CHANNEL_BIT(&channelmap, i); + +send_wlan_chan: + /* update and send wlan channels info to BT */ + for (i = 0; i < 4; i++) + mci->wlan_channels[i] = channelmap[i]; + ar9003_mci_send_wlan_channels(ah); + ar9003_mci_state(ah, MCI_STATE_SEND_VERSION_QUERY); +} + +void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel, + bool concur_tx) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath9k_hw_mci *mci_hw = &sc->sc_ah->btcoex_hw.mci; + bool old_concur_tx = mci_hw->concur_tx; + + if (!(mci_hw->config & ATH_MCI_CONFIG_CONCUR_TX)) { + mci_hw->concur_tx = false; + return; + } + + if (!IS_CHAN_2GHZ(ah->curchan)) + return; + + if (setchannel) { + struct ath9k_hw_cal_data *caldata = &sc->caldata; + if ((caldata->chanmode == CHANNEL_G_HT40PLUS) && + (ah->curchan->channel > caldata->channel) && + (ah->curchan->channel <= caldata->channel + 20)) + return; + if ((caldata->chanmode == CHANNEL_G_HT40MINUS) && + (ah->curchan->channel < caldata->channel) && + (ah->curchan->channel >= caldata->channel - 20)) + return; + mci_hw->concur_tx = false; + } else + mci_hw->concur_tx = concur_tx; + + if (old_concur_tx != mci_hw->concur_tx) + ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit, false); +} + +void ath9k_mci_update_rssi(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath9k_hw_mci *mci_hw = &sc->sc_ah->btcoex_hw.mci; + + if (!(mci_hw->config & ATH_MCI_CONFIG_CONCUR_TX)) + return; + + if (ah->stats.avgbrssi >= 40) { + if (btcoex->rssi_count < 0) + btcoex->rssi_count = 0; + if (++btcoex->rssi_count >= ATH_MCI_CONCUR_TX_SWITCH) { + btcoex->rssi_count = 0; + ath9k_mci_set_txpower(sc, false, true); + } + } else { + if (btcoex->rssi_count > 0) + btcoex->rssi_count = 0; + if (--btcoex->rssi_count <= -ATH_MCI_CONCUR_TX_SWITCH) { + btcoex->rssi_count = 0; + ath9k_mci_set_txpower(sc, false, false); + } + } +} diff --git a/drivers/net/wireless/ath/ath9k/mci.h b/drivers/net/wireless/ath/ath9k/mci.h index fc14eea034e..06958837620 100644 --- a/drivers/net/wireless/ath/ath9k/mci.h +++ b/drivers/net/wireless/ath/ath9k/mci.h @@ -32,6 +32,27 @@ #define ATH_MCI_MAX_PROFILE (ATH_MCI_MAX_ACL_PROFILE +\ ATH_MCI_MAX_SCO_PROFILE) +#define ATH_MCI_INQUIRY_PRIO 62 +#define ATH_MCI_HI_PRIO 60 +#define ATH_MCI_NUM_BT_CHANNELS 79 +#define ATH_MCI_CONCUR_TX_SWITCH 5 + +#define MCI_GPM_SET_CHANNEL_BIT(_p_gpm, _bt_chan) \ + do { \ + if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) { \ + *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \ + (_bt_chan / 8)) |= (1 << (_bt_chan & 7)); \ + } \ + } while (0) + +#define MCI_GPM_CLR_CHANNEL_BIT(_p_gpm, _bt_chan) \ + do { \ + if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) { \ + *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \ + (_bt_chan / 8)) &= ~(1 << (_bt_chan & 7));\ + } \ + } while (0) + #define INC_PROF(_mci, _info) do { \ switch (_info->type) { \ case MCI_GPM_COEX_PROFILE_RFCOMM:\ @@ -49,6 +70,7 @@ _mci->num_pan++; \ break; \ case MCI_GPM_COEX_PROFILE_VOICE: \ + case MCI_GPM_COEX_PROFILE_A2DPVO:\ _mci->num_sco++; \ break; \ default: \ @@ -73,6 +95,7 @@ _mci->num_pan--; \ break; \ case MCI_GPM_COEX_PROFILE_VOICE: \ + case MCI_GPM_COEX_PROFILE_A2DPVO:\ _mci->num_sco--; \ break; \ default: \ @@ -113,6 +136,7 @@ struct ath_mci_profile { u8 num_pan; u8 num_other_acl; u8 num_bdr; + u8 voice_priority; }; struct ath_mci_buf { @@ -130,13 +154,25 @@ void ath_mci_flush_profile(struct ath_mci_profile *mci); int ath_mci_setup(struct ath_softc *sc); void ath_mci_cleanup(struct ath_softc *sc); void ath_mci_intr(struct ath_softc *sc); +void ath9k_mci_update_rssi(struct ath_softc *sc); #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT void ath_mci_enable(struct ath_softc *sc); +void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all); +void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel, + bool concur_tx); #else static inline void ath_mci_enable(struct ath_softc *sc) { } +static inline void ath9k_mci_update_wlan_channels(struct ath_softc *sc, + bool allow_all) +{ +} +static inline void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel, + bool concur_tx) +{ +} #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ #endif /* MCI_H*/ diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 83d16e7ed27..a04028bce28 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1105,7 +1105,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) else rs.is_mybeacon = false; - sc->rx.num_pkts++; + if (ieee80211_is_data_present(hdr->frame_control) && + !ieee80211_is_qos_nullfunc(hdr->frame_control)) + sc->rx.num_pkts++; + ath_debug_stat_rx(sc, &rs); /* diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 4e6760f8596..ad3c82c0917 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -907,10 +907,6 @@ (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \ ((_ah)->hw_version.macRev == AR_SREV_REVISION_9462_20)) -#define AR_SREV_9462_20_OR_LATER(_ah) \ - (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \ - ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9462_20)) - #define AR_SREV_9565(_ah) \ (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9565)) @@ -2315,6 +2311,8 @@ enum { #define AR_BTCOEX_MAX_TXPWR(_x) (0x18c0 + ((_x) << 2)) #define AR_BTCOEX_WL_LNA 0x1940 #define AR_BTCOEX_RFGAIN_CTRL 0x1944 +#define AR_BTCOEX_WL_LNA_TIMEOUT 0x003FFFFF +#define AR_BTCOEX_WL_LNA_TIMEOUT_S 0 #define AR_BTCOEX_CTRL2 0x1948 #define AR_BTCOEX_CTRL2_TXPWR_THRESH 0x0007F800 @@ -2360,4 +2358,11 @@ enum { #define AR_GLB_SWREG_DISCONT_MODE 0x2002c #define AR_GLB_SWREG_DISCONT_EN_BT_WLAN 0x3 +#define AR_MCI_MISC 0x1a74 +#define AR_MCI_MISC_HW_FIX_EN 0x00000001 +#define AR_MCI_MISC_HW_FIX_EN_S 0 +#define AR_MCI_DBG_CNT_CTRL 0x1a78 +#define AR_MCI_DBG_CNT_CTRL_ENABLE 0x00000001 +#define AR_MCI_DBG_CNT_CTRL_ENABLE_S 0 + #endif diff --git a/drivers/net/wireless/ath/ath9k/wow.c b/drivers/net/wireless/ath/ath9k/wow.c index a483d518758..9f8563091be 100644 --- a/drivers/net/wireless/ath/ath9k/wow.c +++ b/drivers/net/wireless/ath/ath9k/wow.c @@ -118,7 +118,7 @@ static void ath9k_wow_create_keep_alive_pattern(struct ath_hw *ah) (ap_mac_addr[1] << 8) | (ap_mac_addr[0]); data_word[5] = (ap_mac_addr[5] << 8) | (ap_mac_addr[4]); - if (AR_SREV_9462_20_OR_LATER(ah)) { + if (AR_SREV_9462_20(ah)) { /* AR9462 2.0 has an extra descriptor word (time based * discard) compared to other chips */ REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + (12 * 4)), 0); diff --git a/drivers/net/wireless/ath/carl9170/mac.c b/drivers/net/wireless/ath/carl9170/mac.c index e3b1b6e8776..24d75ab94f0 100644 --- a/drivers/net/wireless/ath/carl9170/mac.c +++ b/drivers/net/wireless/ath/carl9170/mac.c @@ -343,7 +343,24 @@ int carl9170_set_operating_mode(struct ar9170 *ar) break; } } else { - mac_addr = NULL; + /* + * Enable monitor mode + * + * rx_ctrl |= AR9170_MAC_RX_CTRL_ACK_IN_SNIFFER; + * sniffer |= AR9170_MAC_SNIFFER_ENABLE_PROMISC; + * + * When the hardware is in SNIFFER_PROMISC mode, + * it generates spurious ACKs for every incoming + * frame. This confuses every peer in the + * vicinity and the network throughput will suffer + * badly. + * + * Hence, the hardware will be put into station + * mode and just the rx filters are disabled. + */ + cam_mode |= AR9170_MAC_CAM_STA; + rx_ctrl |= AR9170_MAC_RX_CTRL_PASS_TO_HOST; + mac_addr = common->macaddr; bssid = NULL; } rcu_read_unlock(); @@ -355,8 +372,6 @@ int carl9170_set_operating_mode(struct ar9170 *ar) enc_mode |= AR9170_MAC_ENCRYPTION_RX_SOFTWARE; if (ar->sniffer_enabled) { - rx_ctrl |= AR9170_MAC_RX_CTRL_ACK_IN_SNIFFER; - sniffer |= AR9170_MAC_SNIFFER_ENABLE_PROMISC; enc_mode |= AR9170_MAC_ENCRYPTION_RX_SOFTWARE; } diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c index a0b72307854..6d22382875b 100644 --- a/drivers/net/wireless/ath/carl9170/rx.c +++ b/drivers/net/wireless/ath/carl9170/rx.c @@ -164,9 +164,6 @@ void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len) struct carl9170_rsp *cmd = buf; struct ieee80211_vif *vif; - if (carl9170_check_sequence(ar, cmd->hdr.seq)) - return; - if ((cmd->hdr.cmd & CARL9170_RSP_FLAG) != CARL9170_RSP_FLAG) { if (!(cmd->hdr.cmd & CARL9170_CMD_ASYNC_FLAG)) carl9170_cmd_callback(ar, len, buf); @@ -663,6 +660,35 @@ static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms, return false; } +static int carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len, + struct ieee80211_rx_status *status) +{ + struct sk_buff *skb; + + /* (driver) frame trap handler + * + * Because power-saving mode handing has to be implemented by + * the driver/firmware. We have to check each incoming beacon + * from the associated AP, if there's new data for us (either + * broadcast/multicast or unicast) we have to react quickly. + * + * So, if you have you want to add additional frame trap + * handlers, this would be the perfect place! + */ + + carl9170_ps_beacon(ar, buf, len); + + carl9170_ba_check(ar, buf, len); + + skb = carl9170_rx_copy_data(buf, len); + if (!skb) + return -ENOMEM; + + memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); + ieee80211_rx(ar->hw, skb); + return 0; +} + /* * If the frame alignment is right (or the kernel has * CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS), and there @@ -672,14 +698,12 @@ static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms, * mode, and we need to observe the proper ordering, * this is non-trivial. */ - -static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len) +static void carl9170_rx_untie_data(struct ar9170 *ar, u8 *buf, int len) { struct ar9170_rx_head *head; struct ar9170_rx_macstatus *mac; struct ar9170_rx_phystatus *phy = NULL; struct ieee80211_rx_status status; - struct sk_buff *skb; int mpdu_len; u8 mac_status; @@ -791,18 +815,10 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len) if (phy) carl9170_rx_phy_status(ar, phy, &status); - carl9170_ps_beacon(ar, buf, mpdu_len); - - carl9170_ba_check(ar, buf, mpdu_len); - - skb = carl9170_rx_copy_data(buf, mpdu_len); - if (!skb) + if (carl9170_handle_mpdu(ar, buf, mpdu_len, &status)) goto drop; - memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); - ieee80211_rx(ar->hw, skb); return; - drop: ar->rx_dropped++; } @@ -820,6 +836,9 @@ static void carl9170_rx_untie_cmds(struct ar9170 *ar, const u8 *respbuf, if (unlikely(i > resplen)) break; + if (carl9170_check_sequence(ar, cmd->hdr.seq)) + break; + carl9170_handle_command_response(ar, cmd, cmd->hdr.len + 4); } @@ -851,7 +870,7 @@ static void __carl9170_rx(struct ar9170 *ar, u8 *buf, unsigned int len) if (i == 12) carl9170_rx_untie_cmds(ar, buf, len); else - carl9170_handle_mpdu(ar, buf, len); + carl9170_rx_untie_data(ar, buf, len); } static void carl9170_rx_stream(struct ar9170 *ar, void *buf, unsigned int len) diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c index 888152ce3ec..307bc0ddff9 100644 --- a/drivers/net/wireless/ath/carl9170/usb.c +++ b/drivers/net/wireless/ath/carl9170/usb.c @@ -295,6 +295,13 @@ static void carl9170_usb_rx_irq_complete(struct urb *urb) goto resubmit; } + /* + * While the carl9170 firmware does not use this EP, the + * firmware loader in the EEPROM unfortunately does. + * Therefore we need to be ready to handle out-of-band + * responses and traps in case the firmware crashed and + * the loader took over again. + */ carl9170_handle_command_response(ar, urb->transfer_buffer, urb->actual_length); diff --git a/drivers/net/wireless/ath/hw.c b/drivers/net/wireless/ath/hw.c index 19befb33107..39e8a590d7f 100644 --- a/drivers/net/wireless/ath/hw.c +++ b/drivers/net/wireless/ath/hw.c @@ -20,8 +20,8 @@ #include "ath.h" #include "reg.h" -#define REG_READ (common->ops->read) -#define REG_WRITE (common->ops->write) +#define REG_READ (common->ops->read) +#define REG_WRITE(_ah, _reg, _val) (common->ops->write)(_ah, _val, _reg) /** * ath_hw_set_bssid_mask - filter out bssids we listen @@ -119,8 +119,8 @@ void ath_hw_setbssidmask(struct ath_common *common) { void *ah = common->ah; - REG_WRITE(ah, get_unaligned_le32(common->bssidmask), AR_BSSMSKL); - REG_WRITE(ah, get_unaligned_le16(common->bssidmask + 4), AR_BSSMSKU); + REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(common->bssidmask)); + REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(common->bssidmask + 4)); } EXPORT_SYMBOL(ath_hw_setbssidmask); @@ -139,7 +139,7 @@ void ath_hw_cycle_counters_update(struct ath_common *common) void *ah = common->ah; /* freeze */ - REG_WRITE(ah, AR_MIBC_FMC, AR_MIBC); + REG_WRITE(ah, AR_MIBC, AR_MIBC_FMC); /* read */ cycles = REG_READ(ah, AR_CCCNT); @@ -148,13 +148,13 @@ void ath_hw_cycle_counters_update(struct ath_common *common) tx = REG_READ(ah, AR_TFCNT); /* clear */ - REG_WRITE(ah, 0, AR_CCCNT); - REG_WRITE(ah, 0, AR_RFCNT); - REG_WRITE(ah, 0, AR_RCCNT); - REG_WRITE(ah, 0, AR_TFCNT); + REG_WRITE(ah, AR_CCCNT, 0); + REG_WRITE(ah, AR_RFCNT, 0); + REG_WRITE(ah, AR_RCCNT, 0); + REG_WRITE(ah, AR_TFCNT, 0); /* unfreeze */ - REG_WRITE(ah, 0, AR_MIBC); + REG_WRITE(ah, AR_MIBC, 0); /* update all cycle counters here */ common->cc_ani.cycles += cycles; |