diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 1438 |
1 files changed, 0 insertions, 1438 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c deleted file mode 100644 index de5e8f44b20..00000000000 --- a/drivers/net/wireless/p54/p54common.c +++ /dev/null @@ -1,1438 +0,0 @@ - -/* - * Common code for mac80211 Prism54 drivers - * - * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> - * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de> - * - * Based on the islsm (softmac prism54) driver, which is: - * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/init.h> -#include <linux/firmware.h> -#include <linux/etherdevice.h> - -#include <net/mac80211.h> - -#include "p54.h" -#include "p54common.h" - -MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); -MODULE_DESCRIPTION("Softmac Prism54 common code"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("prism54common"); - -static struct ieee80211_rate p54_bgrates[] = { - { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 60, .hw_value = 4, }, - { .bitrate = 90, .hw_value = 5, }, - { .bitrate = 120, .hw_value = 6, }, - { .bitrate = 180, .hw_value = 7, }, - { .bitrate = 240, .hw_value = 8, }, - { .bitrate = 360, .hw_value = 9, }, - { .bitrate = 480, .hw_value = 10, }, - { .bitrate = 540, .hw_value = 11, }, -}; - -static struct ieee80211_channel p54_bgchannels[] = { - { .center_freq = 2412, .hw_value = 1, }, - { .center_freq = 2417, .hw_value = 2, }, - { .center_freq = 2422, .hw_value = 3, }, - { .center_freq = 2427, .hw_value = 4, }, - { .center_freq = 2432, .hw_value = 5, }, - { .center_freq = 2437, .hw_value = 6, }, - { .center_freq = 2442, .hw_value = 7, }, - { .center_freq = 2447, .hw_value = 8, }, - { .center_freq = 2452, .hw_value = 9, }, - { .center_freq = 2457, .hw_value = 10, }, - { .center_freq = 2462, .hw_value = 11, }, - { .center_freq = 2467, .hw_value = 12, }, - { .center_freq = 2472, .hw_value = 13, }, - { .center_freq = 2484, .hw_value = 14, }, -}; - -static struct ieee80211_supported_band band_2GHz = { - .channels = p54_bgchannels, - .n_channels = ARRAY_SIZE(p54_bgchannels), - .bitrates = p54_bgrates, - .n_bitrates = ARRAY_SIZE(p54_bgrates), -}; - -static struct ieee80211_rate p54_arates[] = { - { .bitrate = 60, .hw_value = 4, }, - { .bitrate = 90, .hw_value = 5, }, - { .bitrate = 120, .hw_value = 6, }, - { .bitrate = 180, .hw_value = 7, }, - { .bitrate = 240, .hw_value = 8, }, - { .bitrate = 360, .hw_value = 9, }, - { .bitrate = 480, .hw_value = 10, }, - { .bitrate = 540, .hw_value = 11, }, -}; - -static struct ieee80211_channel p54_achannels[] = { - { .center_freq = 4920 }, - { .center_freq = 4940 }, - { .center_freq = 4960 }, - { .center_freq = 4980 }, - { .center_freq = 5040 }, - { .center_freq = 5060 }, - { .center_freq = 5080 }, - { .center_freq = 5170 }, - { .center_freq = 5180 }, - { .center_freq = 5190 }, - { .center_freq = 5200 }, - { .center_freq = 5210 }, - { .center_freq = 5220 }, - { .center_freq = 5230 }, - { .center_freq = 5240 }, - { .center_freq = 5260 }, - { .center_freq = 5280 }, - { .center_freq = 5300 }, - { .center_freq = 5320 }, - { .center_freq = 5500 }, - { .center_freq = 5520 }, - { .center_freq = 5540 }, - { .center_freq = 5560 }, - { .center_freq = 5580 }, - { .center_freq = 5600 }, - { .center_freq = 5620 }, - { .center_freq = 5640 }, - { .center_freq = 5660 }, - { .center_freq = 5680 }, - { .center_freq = 5700 }, - { .center_freq = 5745 }, - { .center_freq = 5765 }, - { .center_freq = 5785 }, - { .center_freq = 5805 }, - { .center_freq = 5825 }, -}; - -static struct ieee80211_supported_band band_5GHz = { - .channels = p54_achannels, - .n_channels = ARRAY_SIZE(p54_achannels), - .bitrates = p54_arates, - .n_bitrates = ARRAY_SIZE(p54_arates), -}; - -int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) -{ - struct p54_common *priv = dev->priv; - struct bootrec_exp_if *exp_if; - struct bootrec *bootrec; - u32 *data = (u32 *)fw->data; - u32 *end_data = (u32 *)fw->data + (fw->size >> 2); - u8 *fw_version = NULL; - size_t len; - int i; - - if (priv->rx_start) - return 0; - - while (data < end_data && *data) - data++; - - while (data < end_data && !*data) - data++; - - bootrec = (struct bootrec *) data; - - while (bootrec->data <= end_data && - (bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) { - u32 code = le32_to_cpu(bootrec->code); - switch (code) { - case BR_CODE_COMPONENT_ID: - priv->fw_interface = be32_to_cpup((__be32 *) - bootrec->data); - switch (priv->fw_interface) { - case FW_FMAC: - printk(KERN_INFO "p54: FreeMAC firmware\n"); - break; - case FW_LM20: - printk(KERN_INFO "p54: LM20 firmware\n"); - break; - case FW_LM86: - printk(KERN_INFO "p54: LM86 firmware\n"); - break; - case FW_LM87: - printk(KERN_INFO "p54: LM87 firmware\n"); - break; - default: - printk(KERN_INFO "p54: unknown firmware\n"); - break; - } - break; - case BR_CODE_COMPONENT_VERSION: - /* 24 bytes should be enough for all firmwares */ - if (strnlen((unsigned char*)bootrec->data, 24) < 24) - fw_version = (unsigned char*)bootrec->data; - break; - case BR_CODE_DESCR: { - struct bootrec_desc *desc = - (struct bootrec_desc *)bootrec->data; - priv->rx_start = le32_to_cpu(desc->rx_start); - /* FIXME add sanity checking */ - priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500; - priv->headroom = desc->headroom; - priv->tailroom = desc->tailroom; - if (le32_to_cpu(bootrec->len) == 11) - priv->rx_mtu = le16_to_cpu(bootrec->rx_mtu); - else - priv->rx_mtu = (size_t) - 0x620 - priv->tx_hdr_len; - break; - } - case BR_CODE_EXPOSED_IF: - exp_if = (struct bootrec_exp_if *) bootrec->data; - for (i = 0; i < (len * sizeof(*exp_if) / 4); i++) - if (exp_if[i].if_id == cpu_to_le16(0x1a)) - priv->fw_var = le16_to_cpu(exp_if[i].variant); - break; - case BR_CODE_DEPENDENT_IF: - break; - case BR_CODE_END_OF_BRA: - case LEGACY_BR_CODE_END_OF_BRA: - end_data = NULL; - break; - default: - break; - } - bootrec = (struct bootrec *)&bootrec->data[len]; - } - - if (fw_version) - printk(KERN_INFO "p54: FW rev %s - Softmac protocol %x.%x\n", - fw_version, priv->fw_var >> 8, priv->fw_var & 0xff); - - if (priv->fw_var >= 0x300) { - /* Firmware supports QoS, use it! */ - priv->tx_stats[4].limit = 3; - priv->tx_stats[5].limit = 4; - priv->tx_stats[6].limit = 3; - priv->tx_stats[7].limit = 1; - dev->queues = 4; - } - - return 0; -} -EXPORT_SYMBOL_GPL(p54_parse_firmware); - -static int p54_convert_rev0(struct ieee80211_hw *dev, - struct pda_pa_curve_data *curve_data) -{ - struct p54_common *priv = dev->priv; - struct p54_pa_curve_data_sample *dst; - struct pda_pa_curve_data_sample_rev0 *src; - size_t cd_len = sizeof(*curve_data) + - (curve_data->points_per_channel*sizeof(*dst) + 2) * - curve_data->channels; - unsigned int i, j; - void *source, *target; - - priv->curve_data = kmalloc(cd_len, GFP_KERNEL); - if (!priv->curve_data) - return -ENOMEM; - - memcpy(priv->curve_data, curve_data, sizeof(*curve_data)); - source = curve_data->data; - target = priv->curve_data->data; - for (i = 0; i < curve_data->channels; i++) { - __le16 *freq = source; - source += sizeof(__le16); - *((__le16 *)target) = *freq; - target += sizeof(__le16); - for (j = 0; j < curve_data->points_per_channel; j++) { - dst = target; - src = source; - - dst->rf_power = src->rf_power; - dst->pa_detector = src->pa_detector; - dst->data_64qam = src->pcv; - /* "invent" the points for the other modulations */ -#define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y) - dst->data_16qam = SUB(src->pcv, 12); - dst->data_qpsk = SUB(dst->data_16qam, 12); - dst->data_bpsk = SUB(dst->data_qpsk, 12); - dst->data_barker = SUB(dst->data_bpsk, 14); -#undef SUB - target += sizeof(*dst); - source += sizeof(*src); - } - } - - return 0; -} - -static int p54_convert_rev1(struct ieee80211_hw *dev, - struct pda_pa_curve_data *curve_data) -{ - struct p54_common *priv = dev->priv; - struct p54_pa_curve_data_sample *dst; - struct pda_pa_curve_data_sample_rev1 *src; - size_t cd_len = sizeof(*curve_data) + - (curve_data->points_per_channel*sizeof(*dst) + 2) * - curve_data->channels; - unsigned int i, j; - void *source, *target; - - priv->curve_data = kmalloc(cd_len, GFP_KERNEL); - if (!priv->curve_data) - return -ENOMEM; - - memcpy(priv->curve_data, curve_data, sizeof(*curve_data)); - source = curve_data->data; - target = priv->curve_data->data; - for (i = 0; i < curve_data->channels; i++) { - __le16 *freq = source; - source += sizeof(__le16); - *((__le16 *)target) = *freq; - target += sizeof(__le16); - for (j = 0; j < curve_data->points_per_channel; j++) { - memcpy(target, source, sizeof(*src)); - - target += sizeof(*dst); - source += sizeof(*src); - } - source++; - } - - return 0; -} - -static const char *p54_rf_chips[] = { "NULL", "Indigo?", "Duette", - "Frisbee", "Xbow", "Longbow" }; -static int p54_init_xbow_synth(struct ieee80211_hw *dev); - -static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) -{ - struct p54_common *priv = dev->priv; - struct eeprom_pda_wrap *wrap = NULL; - struct pda_entry *entry; - unsigned int data_len, entry_len; - void *tmp; - int err; - u8 *end = (u8 *)eeprom + len; - DECLARE_MAC_BUF(mac); - - wrap = (struct eeprom_pda_wrap *) eeprom; - entry = (void *)wrap->data + le16_to_cpu(wrap->len); - - /* verify that at least the entry length/code fits */ - while ((u8 *)entry <= end - sizeof(*entry)) { - entry_len = le16_to_cpu(entry->len); - data_len = ((entry_len - 1) << 1); - - /* abort if entry exceeds whole structure */ - if ((u8 *)entry + sizeof(*entry) + data_len > end) - break; - - switch (le16_to_cpu(entry->code)) { - case PDR_MAC_ADDRESS: - SET_IEEE80211_PERM_ADDR(dev, entry->data); - break; - case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS: - if (data_len < 2) { - err = -EINVAL; - goto err; - } - - if (2 + entry->data[1]*sizeof(*priv->output_limit) > data_len) { - err = -EINVAL; - goto err; - } - - priv->output_limit = kmalloc(entry->data[1] * - sizeof(*priv->output_limit), GFP_KERNEL); - - if (!priv->output_limit) { - err = -ENOMEM; - goto err; - } - - memcpy(priv->output_limit, &entry->data[2], - entry->data[1]*sizeof(*priv->output_limit)); - priv->output_limit_len = entry->data[1]; - break; - case PDR_PRISM_PA_CAL_CURVE_DATA: { - struct pda_pa_curve_data *curve_data = - (struct pda_pa_curve_data *)entry->data; - if (data_len < sizeof(*curve_data)) { - err = -EINVAL; - goto err; - } - - switch (curve_data->cal_method_rev) { - case 0: - err = p54_convert_rev0(dev, curve_data); - break; - case 1: - err = p54_convert_rev1(dev, curve_data); - break; - default: - printk(KERN_ERR "p54: unknown curve data " - "revision %d\n", - curve_data->cal_method_rev); - err = -ENODEV; - break; - } - if (err) - goto err; - - } - case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: - priv->iq_autocal = kmalloc(data_len, GFP_KERNEL); - if (!priv->iq_autocal) { - err = -ENOMEM; - goto err; - } - - memcpy(priv->iq_autocal, entry->data, data_len); - priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry); - break; - case PDR_INTERFACE_LIST: - tmp = entry->data; - while ((u8 *)tmp < entry->data + data_len) { - struct bootrec_exp_if *exp_if = tmp; - if (le16_to_cpu(exp_if->if_id) == 0xF) - priv->rxhw = le16_to_cpu(exp_if->variant) & 0x07; - tmp += sizeof(struct bootrec_exp_if); - } - break; - case PDR_HARDWARE_PLATFORM_COMPONENT_ID: - priv->version = *(u8 *)(entry->data + 1); - break; - case PDR_END: - /* make it overrun */ - entry_len = len; - break; - default: - printk(KERN_INFO "p54: unknown eeprom code : 0x%x\n", - le16_to_cpu(entry->code)); - break; - } - - entry = (void *)entry + (entry_len + 1)*2; - } - - if (!priv->iq_autocal || !priv->output_limit || !priv->curve_data) { - printk(KERN_ERR "p54: not all required entries found in eeprom!\n"); - err = -EINVAL; - goto err; - } - - switch (priv->rxhw) { - case 4: /* XBow */ - p54_init_xbow_synth(dev); - case 1: /* Indigo? */ - case 2: /* Duette */ - dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz; - case 3: /* Frisbee */ - case 5: /* Longbow */ - dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz; - break; - default: - printk(KERN_ERR "%s: unsupported RF-Chip\n", - wiphy_name(dev->wiphy)); - err = -EINVAL; - goto err; - } - - if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { - u8 perm_addr[ETH_ALEN]; - - printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n", - wiphy_name(dev->wiphy)); - random_ether_addr(perm_addr); - SET_IEEE80211_PERM_ADDR(dev, perm_addr); - } - - printk(KERN_INFO "%s: hwaddr %s, MAC:isl38%02x RF:%s\n", - wiphy_name(dev->wiphy), - print_mac(mac, dev->wiphy->perm_addr), - priv->version, p54_rf_chips[priv->rxhw]); - - return 0; - - err: - if (priv->iq_autocal) { - kfree(priv->iq_autocal); - priv->iq_autocal = NULL; - } - - if (priv->output_limit) { - kfree(priv->output_limit); - priv->output_limit = NULL; - } - - if (priv->curve_data) { - kfree(priv->curve_data); - priv->curve_data = NULL; - } - - printk(KERN_ERR "p54: eeprom parse failed!\n"); - return err; -} -EXPORT_SYMBOL_GPL(p54_parse_eeprom); - -static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi) -{ - /* TODO: get the rssi_add & rssi_mul data from the eeprom */ - return ((rssi * 0x83) / 64 - 400) / 4; -} - -static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data; - struct ieee80211_rx_status rx_status = {0}; - u16 freq = le16_to_cpu(hdr->freq); - size_t header_len = sizeof(*hdr); - u32 tsf32; - - if (!(hdr->magic & cpu_to_le16(0x0001))) { - if (priv->filter_flags & FIF_FCSFAIL) - rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; - else - return 0; - } - - rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi); - rx_status.noise = priv->noise; - /* XX correct? */ - rx_status.qual = (100 * hdr->rssi) / 127; - rx_status.rate_idx = hdr->rate & 0xf; - rx_status.freq = freq; - rx_status.band = IEEE80211_BAND_2GHZ; - rx_status.antenna = hdr->antenna; - - tsf32 = le32_to_cpu(hdr->tsf32); - if (tsf32 < priv->tsf_low32) - priv->tsf_high32++; - rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32; - priv->tsf_low32 = tsf32; - - rx_status.flag |= RX_FLAG_TSFT; - - if (hdr->magic & cpu_to_le16(0x4000)) - header_len += hdr->align[0]; - - skb_pull(skb, header_len); - skb_trim(skb, le16_to_cpu(hdr->len)); - - ieee80211_rx_irqsafe(dev, skb, &rx_status); - - return -1; -} - -static void inline p54_wake_free_queues(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int i; - - for (i = 0; i < dev->queues; i++) - if (priv->tx_stats[i + 4].len < priv->tx_stats[i + 4].limit) - ieee80211_wake_queue(dev, i); -} - -static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; - struct p54_frame_sent_hdr *payload = (struct p54_frame_sent_hdr *) hdr->data; - struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next; - u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom; - struct memrecord *range = NULL; - u32 freed = 0; - u32 last_addr = priv->rx_start; - unsigned long flags; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - while (entry != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - range = (void *)info->driver_data; - if (range->start_addr == addr) { - struct p54_control_hdr *entry_hdr; - struct p54_tx_control_allocdata *entry_data; - int pad = 0; - - if (entry->next != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *ni; - struct memrecord *mr; - - ni = IEEE80211_SKB_CB(entry->next); - mr = (struct memrecord *)ni->driver_data; - freed = mr->start_addr - last_addr; - } else - freed = priv->rx_end - last_addr; - - last_addr = range->end_addr; - __skb_unlink(entry, &priv->tx_queue); - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - - memset(&info->status, 0, sizeof(info->status)); - entry_hdr = (struct p54_control_hdr *) entry->data; - entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data; - if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0) - pad = entry_data->align[0]; - - priv->tx_stats[entry_data->hw_queue].len--; - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (!(payload->status & 0x01)) - info->flags |= IEEE80211_TX_STAT_ACK; - else - info->status.excessive_retries = 1; - } - info->status.retry_count = payload->retries - 1; - info->status.ack_signal = p54_rssi_to_dbm(dev, - le16_to_cpu(payload->ack_rssi)); - skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); - ieee80211_tx_status_irqsafe(dev, entry); - goto out; - } else - last_addr = range->end_addr; - entry = entry->next; - } - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - -out: - if (freed >= IEEE80211_MAX_RTS_THRESHOLD + 0x170 + - sizeof(struct p54_control_hdr)) - p54_wake_free_queues(dev); -} - -static void p54_rx_eeprom_readback(struct ieee80211_hw *dev, - struct sk_buff *skb) -{ - struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; - struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data; - struct p54_common *priv = dev->priv; - - if (!priv->eeprom) - return ; - - memcpy(priv->eeprom, eeprom->data, le16_to_cpu(eeprom->len)); - - complete(&priv->eeprom_comp); -} - -static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; - struct p54_statistics *stats = (struct p54_statistics *) hdr->data; - u32 tsf32 = le32_to_cpu(stats->tsf32); - - if (tsf32 < priv->tsf_low32) - priv->tsf_high32++; - priv->tsf_low32 = tsf32; - - priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail); - priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success); - priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs); - - priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise)); - complete(&priv->stats_comp); - - mod_timer(&priv->stats_timer, jiffies + 5 * HZ); -} - -static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; - - switch (le16_to_cpu(hdr->type)) { - case P54_CONTROL_TYPE_TXDONE: - p54_rx_frame_sent(dev, skb); - break; - case P54_CONTROL_TYPE_BBP: - break; - case P54_CONTROL_TYPE_STAT_READBACK: - p54_rx_stats(dev, skb); - break; - case P54_CONTROL_TYPE_EEPROM_READBACK: - p54_rx_eeprom_readback(dev, skb); - break; - default: - printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n", - wiphy_name(dev->wiphy), le16_to_cpu(hdr->type)); - break; - } - - return 0; -} - -/* returns zero if skb can be reused */ -int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - u8 type = le16_to_cpu(*((__le16 *)skb->data)) >> 8; - - if (type == 0x80) - return p54_rx_control(dev, skb); - else - return p54_rx_data(dev, skb); -} -EXPORT_SYMBOL_GPL(p54_rx); - -/* - * So, the firmware is somewhat stupid and doesn't know what places in its - * memory incoming data should go to. By poking around in the firmware, we - * can find some unused memory to upload our packets to. However, data that we - * want the card to TX needs to stay intact until the card has told us that - * it is done with it. This function finds empty places we can upload to and - * marks allocated areas as reserved if necessary. p54_rx_frame_sent frees - * allocated areas. - */ -static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, - struct p54_control_hdr *data, u32 len) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *entry = priv->tx_queue.next; - struct sk_buff *target_skb = NULL; - u32 last_addr = priv->rx_start; - u32 largest_hole = 0; - u32 target_addr = priv->rx_start; - unsigned long flags; - unsigned int left; - len = (len + priv->headroom + priv->tailroom + 3) & ~0x3; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - left = skb_queue_len(&priv->tx_queue); - while (left--) { - u32 hole_size; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - struct memrecord *range = (void *)info->driver_data; - hole_size = range->start_addr - last_addr; - if (!target_skb && hole_size >= len) { - target_skb = entry->prev; - hole_size -= len; - target_addr = last_addr; - } - largest_hole = max(largest_hole, hole_size); - last_addr = range->end_addr; - entry = entry->next; - } - if (!target_skb && priv->rx_end - last_addr >= len) { - target_skb = priv->tx_queue.prev; - largest_hole = max(largest_hole, priv->rx_end - last_addr - len); - if (!skb_queue_empty(&priv->tx_queue)) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb); - struct memrecord *range = (void *)info->driver_data; - target_addr = range->end_addr; - } - } else - largest_hole = max(largest_hole, priv->rx_end - last_addr); - - if (skb) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct memrecord *range = (void *)info->driver_data; - range->start_addr = target_addr; - range->end_addr = target_addr + len; - __skb_queue_after(&priv->tx_queue, target_skb, skb); - if (largest_hole < priv->rx_mtu + priv->headroom + - priv->tailroom + - sizeof(struct p54_control_hdr)) - ieee80211_stop_queues(dev); - } - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - - data->req_id = cpu_to_le32(target_addr + priv->headroom); -} - -int p54_read_eeprom(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr = NULL; - struct p54_eeprom_lm86 *eeprom_hdr; - size_t eeprom_size = 0x2020, offset = 0, blocksize; - int ret = -ENOMEM; - void *eeprom = NULL; - - hdr = (struct p54_control_hdr *)kzalloc(sizeof(*hdr) + - sizeof(*eeprom_hdr) + EEPROM_READBACK_LEN, GFP_KERNEL); - if (!hdr) - goto free; - - priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL); - if (!priv->eeprom) - goto free; - - eeprom = kzalloc(eeprom_size, GFP_KERNEL); - if (!eeprom) - goto free; - - hdr->magic1 = cpu_to_le16(0x8000); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK); - hdr->retry1 = hdr->retry2 = 0; - eeprom_hdr = (struct p54_eeprom_lm86 *) hdr->data; - - while (eeprom_size) { - blocksize = min(eeprom_size, (size_t)EEPROM_READBACK_LEN); - hdr->len = cpu_to_le16(blocksize + sizeof(*eeprom_hdr)); - eeprom_hdr->offset = cpu_to_le16(offset); - eeprom_hdr->len = cpu_to_le16(blocksize); - p54_assign_address(dev, NULL, hdr, le16_to_cpu(hdr->len) + - sizeof(*hdr)); - priv->tx(dev, hdr, le16_to_cpu(hdr->len) + sizeof(*hdr), 0); - - if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) { - printk(KERN_ERR "%s: device does not respond!\n", - wiphy_name(dev->wiphy)); - ret = -EBUSY; - goto free; - } - - memcpy(eeprom + offset, priv->eeprom, blocksize); - offset += blocksize; - eeprom_size -= blocksize; - } - - ret = p54_parse_eeprom(dev, eeprom, offset); -free: - kfree(priv->eeprom); - priv->eeprom = NULL; - kfree(hdr); - kfree(eeprom); - - return ret; -} -EXPORT_SYMBOL_GPL(p54_read_eeprom); - -static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_queue_stats *current_queue; - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data; - struct p54_tx_control_allocdata *txhdr; - size_t padding, len; - u8 rate; - u8 cts_rate = 0x20; - - current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4]; - if (unlikely(current_queue->len > current_queue->limit)) - return NETDEV_TX_BUSY; - current_queue->len++; - current_queue->count++; - if (current_queue->len == current_queue->limit) - ieee80211_stop_queue(dev, skb_get_queue_mapping(skb)); - - padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3; - len = skb->len; - - txhdr = (struct p54_tx_control_allocdata *) - skb_push(skb, sizeof(*txhdr) + padding); - hdr = (struct p54_control_hdr *) skb_push(skb, sizeof(*hdr)); - - if (padding) - hdr->magic1 = cpu_to_le16(0x4010); - else - hdr->magic1 = cpu_to_le16(0x0010); - hdr->len = cpu_to_le16(len); - hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1); - hdr->retry1 = hdr->retry2 = info->control.retry_limit; - - /* TODO: add support for alternate retry TX rates */ - rate = ieee80211_get_tx_rate(dev, info)->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) { - rate |= 0x10; - cts_rate |= 0x10; - } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { - rate |= 0x40; - cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { - rate |= 0x20; - cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; - } - memset(txhdr->rateset, rate, 8); - txhdr->key_type = 0; - txhdr->key_len = 0; - txhdr->hw_queue = skb_get_queue_mapping(skb) + 4; - txhdr->tx_antenna = (info->antenna_sel_tx == 0) ? - 2 : info->antenna_sel_tx - 1; - txhdr->output_power = priv->output_power; - txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? - 0 : cts_rate; - if (padding) - txhdr->align[0] = padding; - - /* FIXME: The sequence that follows is needed for this driver to - * work with mac80211 since "mac80211: fix TX sequence numbers". - * As with the temporary code in rt2x00, changes will be needed - * to get proper sequence numbers on beacons. In addition, this - * patch places the sequence number in the hardware state, which - * limits us to a single virtual state. - */ - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) - priv->seqno += 0x10; - ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno); - } - /* modifies skb->cb and with it info, so must be last! */ - p54_assign_address(dev, skb, hdr, skb->len); - - priv->tx(dev, hdr, skb->len, 0); - return 0; -} - -static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type, - const u8 *bssid) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_filter *filter; - size_t data_len; - - hdr = kzalloc(sizeof(*hdr) + sizeof(*filter) + - priv->tx_hdr_len, GFP_ATOMIC); - if (!hdr) - return -ENOMEM; - - hdr = (void *)hdr + priv->tx_hdr_len; - - filter = (struct p54_tx_control_filter *) hdr->data; - hdr->magic1 = cpu_to_le16(0x8001); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET); - - priv->filter_type = filter->filter_type = cpu_to_le16(filter_type); - memcpy(filter->mac_addr, priv->mac_addr, ETH_ALEN); - if (!bssid) - memset(filter->bssid, ~0, ETH_ALEN); - else - memcpy(filter->bssid, bssid, ETH_ALEN); - - filter->rx_antenna = priv->rx_antenna; - - if (priv->fw_var < 0x500) { - data_len = P54_TX_CONTROL_FILTER_V1_LEN; - filter->v1.basic_rate_mask = cpu_to_le32(0x15F); - filter->v1.rx_addr = cpu_to_le32(priv->rx_end); - filter->v1.max_rx = cpu_to_le16(priv->rx_mtu); - filter->v1.rxhw = cpu_to_le16(priv->rxhw); - filter->v1.wakeup_timer = cpu_to_le16(500); - } else { - data_len = P54_TX_CONTROL_FILTER_V2_LEN; - filter->v2.rx_addr = cpu_to_le32(priv->rx_end); - filter->v2.max_rx = cpu_to_le16(priv->rx_mtu); - filter->v2.rxhw = cpu_to_le16(priv->rxhw); - filter->v2.timer = cpu_to_le16(1000); - } - - hdr->len = cpu_to_le16(data_len); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len); - priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1); - return 0; -} - -static int p54_set_freq(struct ieee80211_hw *dev, __le16 freq) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_channel *chan; - unsigned int i; - size_t data_len; - void *entry; - - hdr = kzalloc(sizeof(*hdr) + sizeof(*chan) + - priv->tx_hdr_len, GFP_KERNEL); - if (!hdr) - return -ENOMEM; - - hdr = (void *)hdr + priv->tx_hdr_len; - - chan = (struct p54_tx_control_channel *) hdr->data; - - hdr->magic1 = cpu_to_le16(0x8001); - - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_CHANNEL_CHANGE); - - chan->flags = cpu_to_le16(0x1); - chan->dwell = cpu_to_le16(0x0); - - for (i = 0; i < priv->iq_autocal_len; i++) { - if (priv->iq_autocal[i].freq != freq) - continue; - - memcpy(&chan->iq_autocal, &priv->iq_autocal[i], - sizeof(*priv->iq_autocal)); - break; - } - if (i == priv->iq_autocal_len) - goto err; - - for (i = 0; i < priv->output_limit_len; i++) { - if (priv->output_limit[i].freq != freq) - continue; - - chan->val_barker = 0x38; - chan->val_bpsk = chan->dup_bpsk = - priv->output_limit[i].val_bpsk; - chan->val_qpsk = chan->dup_qpsk = - priv->output_limit[i].val_qpsk; - chan->val_16qam = chan->dup_16qam = - priv->output_limit[i].val_16qam; - chan->val_64qam = chan->dup_64qam = - priv->output_limit[i].val_64qam; - break; - } - if (i == priv->output_limit_len) - goto err; - - entry = priv->curve_data->data; - for (i = 0; i < priv->curve_data->channels; i++) { - if (*((__le16 *)entry) != freq) { - entry += sizeof(__le16); - entry += sizeof(struct p54_pa_curve_data_sample) * - priv->curve_data->points_per_channel; - continue; - } - - entry += sizeof(__le16); - chan->pa_points_per_curve = - min(priv->curve_data->points_per_channel, (u8) 8); - - memcpy(chan->curve_data, entry, sizeof(*chan->curve_data) * - chan->pa_points_per_curve); - break; - } - - if (priv->fw_var < 0x500) { - data_len = P54_TX_CONTROL_CHANNEL_V1_LEN; - chan->v1.rssical_mul = cpu_to_le16(130); - chan->v1.rssical_add = cpu_to_le16(0xfe70); - } else { - data_len = P54_TX_CONTROL_CHANNEL_V2_LEN; - chan->v2.rssical_mul = cpu_to_le16(130); - chan->v2.rssical_add = cpu_to_le16(0xfe70); - chan->v2.basic_rate_mask = cpu_to_le32(0x15f); - } - - hdr->len = cpu_to_le16(data_len); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len); - priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1); - return 0; - - err: - printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy)); - kfree(hdr); - return -EINVAL; -} - -static int p54_set_leds(struct ieee80211_hw *dev, int mode, int link, int act) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_led *led; - - hdr = kzalloc(sizeof(*hdr) + sizeof(*led) + - priv->tx_hdr_len, GFP_KERNEL); - if (!hdr) - return -ENOMEM; - - hdr = (void *)hdr + priv->tx_hdr_len; - hdr->magic1 = cpu_to_le16(0x8001); - hdr->len = cpu_to_le16(sizeof(*led)); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_LED); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*led)); - - led = (struct p54_tx_control_led *) hdr->data; - led->mode = cpu_to_le16(mode); - led->led_permanent = cpu_to_le16(link); - led->led_temporary = cpu_to_le16(act); - led->duration = cpu_to_le16(1000); - - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*led), 1); - - return 0; -} - -#define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \ -do { \ - queue.aifs = cpu_to_le16(ai_fs); \ - queue.cwmin = cpu_to_le16(cw_min); \ - queue.cwmax = cpu_to_le16(cw_max); \ - queue.txop = cpu_to_le16(_txop); \ -} while(0) - -static void p54_init_vdcf(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_vdcf *vdcf; - - /* all USB V1 adapters need a extra headroom */ - hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len; - hdr->magic1 = cpu_to_le16(0x8001); - hdr->len = cpu_to_le16(sizeof(*vdcf)); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_DCFINIT); - hdr->req_id = cpu_to_le32(priv->rx_start); - - vdcf = (struct p54_tx_control_vdcf *) hdr->data; - - P54_SET_QUEUE(vdcf->queue[0], 0x0002, 0x0003, 0x0007, 47); - P54_SET_QUEUE(vdcf->queue[1], 0x0002, 0x0007, 0x000f, 94); - P54_SET_QUEUE(vdcf->queue[2], 0x0003, 0x000f, 0x03ff, 0); - P54_SET_QUEUE(vdcf->queue[3], 0x0007, 0x000f, 0x03ff, 0); -} - -static void p54_set_vdcf(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_vdcf *vdcf; - - hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len; - - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*vdcf)); - - vdcf = (struct p54_tx_control_vdcf *) hdr->data; - - if (dev->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME) { - vdcf->slottime = 9; - vdcf->magic1 = 0x10; - vdcf->magic2 = 0x00; - } else { - vdcf->slottime = 20; - vdcf->magic1 = 0x0a; - vdcf->magic2 = 0x06; - } - - /* (see prism54/isl_oid.h for further details) */ - vdcf->frameburst = cpu_to_le16(0); - - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*vdcf), 0); -} - -static int p54_start(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int err; - - if (!priv->cached_vdcf) { - priv->cached_vdcf = kzalloc(sizeof(struct p54_tx_control_vdcf)+ - priv->tx_hdr_len + sizeof(struct p54_control_hdr), - GFP_KERNEL); - - if (!priv->cached_vdcf) - return -ENOMEM; - } - - if (!priv->cached_stats) { - priv->cached_stats = kzalloc(sizeof(struct p54_statistics) + - priv->tx_hdr_len + sizeof(struct p54_control_hdr), - GFP_KERNEL); - - if (!priv->cached_stats) { - kfree(priv->cached_vdcf); - priv->cached_vdcf = NULL; - return -ENOMEM; - } - } - - err = priv->open(dev); - if (!err) - priv->mode = NL80211_IFTYPE_MONITOR; - - p54_init_vdcf(dev); - - mod_timer(&priv->stats_timer, jiffies + HZ); - return err; -} - -static void p54_stop(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - - del_timer(&priv->stats_timer); - while ((skb = skb_dequeue(&priv->tx_queue))) - kfree_skb(skb); - priv->stop(dev); - priv->tsf_high32 = priv->tsf_low32 = 0; - priv->mode = NL80211_IFTYPE_UNSPECIFIED; -} - -static int p54_add_interface(struct ieee80211_hw *dev, - struct ieee80211_if_init_conf *conf) -{ - struct p54_common *priv = dev->priv; - - if (priv->mode != NL80211_IFTYPE_MONITOR) - return -EOPNOTSUPP; - - switch (conf->type) { - case NL80211_IFTYPE_STATION: - priv->mode = conf->type; - break; - default: - return -EOPNOTSUPP; - } - - memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); - - p54_set_filter(dev, 0, NULL); - - switch (conf->type) { - case NL80211_IFTYPE_STATION: - p54_set_filter(dev, 1, NULL); - break; - default: - BUG(); /* impossible */ - break; - } - - p54_set_leds(dev, 1, 0, 0); - - return 0; -} - -static void p54_remove_interface(struct ieee80211_hw *dev, - struct ieee80211_if_init_conf *conf) -{ - struct p54_common *priv = dev->priv; - priv->mode = NL80211_IFTYPE_MONITOR; - memset(priv->mac_addr, 0, ETH_ALEN); - p54_set_filter(dev, 0, NULL); -} - -static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) -{ - int ret; - struct p54_common *priv = dev->priv; - - mutex_lock(&priv->conf_mutex); - priv->rx_antenna = (conf->antenna_sel_rx == 0) ? - 2 : conf->antenna_sel_tx - 1; - priv->output_power = conf->power_level << 2; - ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq)); - p54_set_vdcf(dev); - mutex_unlock(&priv->conf_mutex); - return ret; -} - -static int p54_config_interface(struct ieee80211_hw *dev, - struct ieee80211_vif *vif, - struct ieee80211_if_conf *conf) -{ - struct p54_common *priv = dev->priv; - - mutex_lock(&priv->conf_mutex); - p54_set_filter(dev, 0, conf->bssid); - p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0); - memcpy(priv->bssid, conf->bssid, ETH_ALEN); - mutex_unlock(&priv->conf_mutex); - return 0; -} - -static void p54_configure_filter(struct ieee80211_hw *dev, - unsigned int changed_flags, - unsigned int *total_flags, - int mc_count, struct dev_mc_list *mclist) -{ - struct p54_common *priv = dev->priv; - - *total_flags &= FIF_BCN_PRBRESP_PROMISC | - FIF_PROMISC_IN_BSS | - FIF_FCSFAIL; - - priv->filter_flags = *total_flags; - - if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { - if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - p54_set_filter(dev, le16_to_cpu(priv->filter_type), - NULL); - else - p54_set_filter(dev, le16_to_cpu(priv->filter_type), - priv->bssid); - } - - if (changed_flags & FIF_PROMISC_IN_BSS) { - if (*total_flags & FIF_PROMISC_IN_BSS) - p54_set_filter(dev, le16_to_cpu(priv->filter_type) | - 0x8, NULL); - else - p54_set_filter(dev, le16_to_cpu(priv->filter_type) & - ~0x8, priv->bssid); - } -} - -static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue, - const struct ieee80211_tx_queue_params *params) -{ - struct p54_common *priv = dev->priv; - struct p54_tx_control_vdcf *vdcf; - - vdcf = (struct p54_tx_control_vdcf *)(((struct p54_control_hdr *) - ((void *)priv->cached_vdcf + priv->tx_hdr_len))->data); - - if ((params) && !(queue > 4)) { - P54_SET_QUEUE(vdcf->queue[queue], params->aifs, - params->cw_min, params->cw_max, params->txop); - } else - return -EINVAL; - - p54_set_vdcf(dev); - - return 0; -} - -static int p54_init_xbow_synth(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_xbow_synth *xbow; - - hdr = kzalloc(sizeof(*hdr) + sizeof(*xbow) + - priv->tx_hdr_len, GFP_KERNEL); - if (!hdr) - return -ENOMEM; - - hdr = (void *)hdr + priv->tx_hdr_len; - hdr->magic1 = cpu_to_le16(0x8001); - hdr->len = cpu_to_le16(sizeof(*xbow)); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_XBOW_SYNTH_CFG); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*xbow)); - - xbow = (struct p54_tx_control_xbow_synth *) hdr->data; - xbow->magic1 = cpu_to_le16(0x1); - xbow->magic2 = cpu_to_le16(0x2); - xbow->freq = cpu_to_le16(5390); - - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*xbow), 1); - - return 0; -} - -static void p54_statistics_timer(unsigned long data) -{ - struct ieee80211_hw *dev = (struct ieee80211_hw *) data; - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_statistics *stats; - - BUG_ON(!priv->cached_stats); - - hdr = (void *)priv->cached_stats + priv->tx_hdr_len; - hdr->magic1 = cpu_to_le16(0x8000); - hdr->len = cpu_to_le16(sizeof(*stats)); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_STAT_READBACK); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*stats)); - - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*stats), 0); -} - -static int p54_get_stats(struct ieee80211_hw *dev, - struct ieee80211_low_level_stats *stats) -{ - struct p54_common *priv = dev->priv; - - del_timer(&priv->stats_timer); - p54_statistics_timer((unsigned long)dev); - - if (!wait_for_completion_interruptible_timeout(&priv->stats_comp, HZ)) { - printk(KERN_ERR "%s: device does not respond!\n", - wiphy_name(dev->wiphy)); - return -EBUSY; - } - - memcpy(stats, &priv->stats, sizeof(*stats)); - - return 0; -} - -static int p54_get_tx_stats(struct ieee80211_hw *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct p54_common *priv = dev->priv; - - memcpy(stats, &priv->tx_stats[4], sizeof(stats[0]) * dev->queues); - - return 0; -} - -static const struct ieee80211_ops p54_ops = { - .tx = p54_tx, - .start = p54_start, - .stop = p54_stop, - .add_interface = p54_add_interface, - .remove_interface = p54_remove_interface, - .config = p54_config, - .config_interface = p54_config_interface, - .configure_filter = p54_configure_filter, - .conf_tx = p54_conf_tx, - .get_stats = p54_get_stats, - .get_tx_stats = p54_get_tx_stats -}; - -struct ieee80211_hw *p54_init_common(size_t priv_data_len) -{ - struct ieee80211_hw *dev; - struct p54_common *priv; - - dev = ieee80211_alloc_hw(priv_data_len, &p54_ops); - if (!dev) - return NULL; - - priv = dev->priv; - priv->mode = NL80211_IFTYPE_UNSPECIFIED; - skb_queue_head_init(&priv->tx_queue); - dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */ - IEEE80211_HW_RX_INCLUDES_FCS | - IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_NOISE_DBM; - - dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); - - dev->channel_change_time = 1000; /* TODO: find actual value */ - - priv->tx_stats[0].limit = 1; - priv->tx_stats[1].limit = 1; - priv->tx_stats[2].limit = 1; - priv->tx_stats[3].limit = 1; - priv->tx_stats[4].limit = 5; - dev->queues = 1; - priv->noise = -94; - dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 + - sizeof(struct p54_tx_control_allocdata); - - mutex_init(&priv->conf_mutex); - init_completion(&priv->eeprom_comp); - init_completion(&priv->stats_comp); - setup_timer(&priv->stats_timer, p54_statistics_timer, - (unsigned long)dev); - - return dev; -} -EXPORT_SYMBOL_GPL(p54_init_common); - -void p54_free_common(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - kfree(priv->cached_stats); - kfree(priv->iq_autocal); - kfree(priv->output_limit); - kfree(priv->curve_data); - kfree(priv->cached_vdcf); -} -EXPORT_SYMBOL_GPL(p54_free_common); - -static int __init p54_init(void) -{ - return 0; -} - -static void __exit p54_exit(void) -{ -} - -module_init(p54_init); -module_exit(p54_exit); |