diff options
Diffstat (limited to 'package/p54/src/p54common.c')
| -rw-r--r-- | package/p54/src/p54common.c | 1019 |
1 files changed, 0 insertions, 1019 deletions
diff --git a/package/p54/src/p54common.c b/package/p54/src/p54common.c deleted file mode 100644 index 2c63cf0ad2..0000000000 --- a/package/p54/src/p54common.c +++ /dev/null @@ -1,1019 +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"); - -void 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; - - 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: - switch (be32_to_cpu(*bootrec->data)) { - 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 - not supported yet!\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: - priv->rx_start = le32_to_cpu(bootrec->data[1]); - /* FIXME add sanity checking */ - priv->rx_end = le32_to_cpu(bootrec->data[2]) - 0x3500; - 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 == 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.data[0].limit = 3; - priv->tx_stats.data[1].limit = 4; - priv->tx_stats.data[2].limit = 3; - priv->tx_stats.data[3].limit = 1; - dev->queues = 4; - } -} -EXPORT_SYMBOL_GPL(p54_parse_firmware); - -static int p54_convert_rev0_to_rev1(struct ieee80211_hw *dev, - struct pda_pa_curve_data *curve_data) -{ - struct p54_common *priv = dev->priv; - struct pda_pa_curve_data_sample_rev1 *rev1; - struct pda_pa_curve_data_sample_rev0 *rev0; - size_t cd_len = sizeof(*curve_data) + - (curve_data->points_per_channel*sizeof(*rev1) + 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++) { - rev1 = target; - rev0 = source; - - rev1->rf_power = rev0->rf_power; - rev1->pa_detector = rev0->pa_detector; - rev1->data_64qam = rev0->pcv; - /* "invent" the points for the other modulations */ -#define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y) - rev1->data_16qam = SUB(rev0->pcv, 12); - rev1->data_qpsk = SUB(rev1->data_16qam, 12); - rev1->data_bpsk = SUB(rev1->data_qpsk, 12); - rev1->data_barker= SUB(rev1->data_bpsk, 14); -#undef SUB - target += sizeof(*rev1); - source += sizeof(*rev0); - } - } - - return 0; -} - -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; - int i = 0; - unsigned int data_len, entry_len; - void *tmp; - int err; - - wrap = (struct eeprom_pda_wrap *) eeprom; - entry = (void *)wrap->data + wrap->len; - i += 2; - i += le16_to_cpu(entry->len)*2; - while (i < len) { - entry_len = le16_to_cpu(entry->len); - data_len = ((entry_len - 1) << 1); - 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: - if (data_len < sizeof(struct pda_pa_curve_data)) { - err = -EINVAL; - goto err; - } - - if (((struct pda_pa_curve_data *)entry->data)->cal_method_rev) { - priv->curve_data = kmalloc(data_len, GFP_KERNEL); - if (!priv->curve_data) { - err = -ENOMEM; - goto err; - } - - memcpy(priv->curve_data, entry->data, data_len); - } else { - err = p54_convert_rev0_to_rev1(dev, (struct pda_pa_curve_data *)entry->data); - if (err) - goto err; - } - - break; - 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 = exp_if->variant & cpu_to_le16(0x07); - tmp += sizeof(struct bootrec_exp_if); - } - break; - case PDR_HARDWARE_PLATFORM_COMPONENT_ID: - priv->version = *(u8 *)(entry->data + 1); - break; - case PDR_END: - i = len; - break; - } - - entry = (void *)entry + (entry_len + 1)*2; - i += 2; - i += entry_len*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; - } - - 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); - -void p54_fill_eeprom_readback(struct p54_control_hdr *hdr) -{ - struct p54_eeprom_lm86 *eeprom_hdr; - - hdr->magic1 = cpu_to_le16(0x8000); - hdr->len = cpu_to_le16(sizeof(*eeprom_hdr) + 0x2000); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK); - hdr->retry1 = hdr->retry2 = 0; - eeprom_hdr = (struct p54_eeprom_lm86 *) hdr->data; - eeprom_hdr->offset = 0x0; - eeprom_hdr->len = cpu_to_le16(0x2000); -} -EXPORT_SYMBOL_GPL(p54_fill_eeprom_readback); - -static void p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - 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); - - rx_status.ssi = hdr->rssi; - rx_status.rate = hdr->rate & 0x1f; /* report short preambles & CCK too */ - rx_status.channel = freq == 2484 ? 14 : (freq - 2407)/5; - rx_status.freq = freq; - rx_status.phymode = MODE_IEEE80211G; - rx_status.antenna = hdr->antenna; - rx_status.mactime = le64_to_cpu(hdr->timestamp); - - skb_pull(skb, sizeof(*hdr)); - skb_trim(skb, le16_to_cpu(hdr->len)); - - ieee80211_rx_irqsafe(dev, skb, &rx_status); -} - -static void inline p54_wake_free_queues(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int i; - - /* ieee80211_start_queues is great if all queues are really empty. - * But, what if some are full? */ - - for (i = 0; i < dev->queues; i++) - if (priv->tx_stats.data[i].len < priv->tx_stats.data[i].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) - 0x70; - struct memrecord *range = NULL; - u32 freed = 0; - u32 last_addr = priv->rx_start; - - while (entry != (struct sk_buff *)&priv->tx_queue) { - range = (struct memrecord *)&entry->cb; - if (range->start_addr == addr) { - struct ieee80211_tx_status status = {{0}}; - 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) - freed = ((struct memrecord *)&entry->next->cb)->start_addr - last_addr; - else - freed = priv->rx_end - last_addr; - - last_addr = range->end_addr; - __skb_unlink(entry, &priv->tx_queue); - if (!range->control) { - kfree_skb(entry); - break; - } - memcpy(&status.control, range->control, - sizeof(status.control)); - kfree(range->control); - priv->tx_stats.data[status.control.queue].len--; - - 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]; - - if (!status.control.flags & IEEE80211_TXCTL_NO_ACK) { - if (!(payload->status & 0x01)) - status.flags |= IEEE80211_TX_STATUS_ACK; - else - status.excessive_retries = 1; - } - status.retry_count = payload->retries - 1; - status.ack_signal = le16_to_cpu(payload->ack_rssi); - skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); - ieee80211_tx_status_irqsafe(dev, entry, &status); - break; - } else - last_addr = range->end_addr; - entry = entry->next; - } - - if (freed >= IEEE80211_MAX_RTS_THRESHOLD + 0x170 + - sizeof(struct p54_control_hdr)) - p54_wake_free_queues(dev); -} - -static void 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; - default: - printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n", - wiphy_name(dev->wiphy), le16_to_cpu(hdr->type)); - break; - } -} - -/* 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; - switch (type) { - case 0x00: - case 0x01: - p54_rx_data(dev, skb); - return -1; - case 0x4d: - /* TODO: do something better... but then again, I've never seen this happen */ - printk(KERN_ERR "%s: Received fault. Probably need to restart hardware now..\n", - wiphy_name(dev->wiphy)); - break; - case 0x80: - p54_rx_control(dev, skb); - break; - default: - printk(KERN_ERR "%s: unknown frame RXed (0x%02x)\n", - wiphy_name(dev->wiphy), type); - break; - } - return 0; -} -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 ieee80211_tx_control *control) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *entry = priv->tx_queue.next; - struct sk_buff *target_skb = NULL; - struct memrecord *range; - u32 last_addr = priv->rx_start; - u32 largest_hole = 0; - u32 target_addr = priv->rx_start; - unsigned long flags; - unsigned int left; - len = (len + 0x170 + 3) & ~0x3; /* 0x70 headroom, 0x100 tailroom */ - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - left = skb_queue_len(&priv->tx_queue); - while (left--) { - u32 hole_size; - range = (struct memrecord *)&entry->cb; - 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)) { - range = (struct memrecord *)&target_skb->cb; - target_addr = range->end_addr; - } - } else - largest_hole = max(largest_hole, priv->rx_end - last_addr); - - if (skb) { - range = (struct memrecord *)&skb->cb; - range->start_addr = target_addr; - range->end_addr = target_addr + len; - range->control = control; - __skb_queue_after(&priv->tx_queue, target_skb, skb); - if (largest_hole < IEEE80211_MAX_RTS_THRESHOLD + 0x170 + - 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 + 0x70); -} - -static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb, - struct ieee80211_tx_control *control) -{ - struct ieee80211_tx_queue_stats_data *current_queue; - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_allocdata *txhdr; - struct ieee80211_tx_control *control_copy; - size_t padding, len; - u8 rate; - - current_queue = &priv->tx_stats.data[control->queue]; - 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, control->queue); - - padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3; - len = skb->len; - - control_copy = kmalloc(sizeof(*control), GFP_ATOMIC); - if (control_copy) - memcpy(control_copy, control, sizeof(*control)); - - 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 = (control->flags & IEEE80211_TXCTL_NO_ACK) ? 0 : cpu_to_le16(1); - hdr->retry1 = hdr->retry2 = control->retry_limit; - p54_assign_address(dev, skb, hdr, skb->len, control_copy); - - memset(txhdr->wep_key, 0x0, 16); - txhdr->padding = 0; - txhdr->padding2 = 0; - - /* TODO: add support for alternate retry TX rates */ - rate = control->tx_rate; - if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) - rate |= 0x40; - else if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) - rate |= 0x20; - memset(txhdr->rateset, rate, 8); - txhdr->wep_key_present = 0; - txhdr->wep_key_len = 0; - txhdr->frame_type = cpu_to_le32(control->queue + 4); - txhdr->magic4 = 0; - txhdr->antenna = (control->antenna_sel_tx == 0) ? - 2 : control->antenna_sel_tx - 1; - txhdr->output_power = 0x7f; // HW Maximum - txhdr->magic5 = (control->flags & IEEE80211_TXCTL_NO_ACK) ? - 0 : ((rate > 0x3) ? cpu_to_le32(0x33) : cpu_to_le32(0x23)); - if (padding) - txhdr->align[0] = padding; - - priv->tx(dev, hdr, skb->len, 0); - return 0; -} - -static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type, - const u8 *dst, const u8 *src, u8 antenna, - u32 magic3, u32 magic8, u32 magic9) -{ - struct p54_common *priv = dev->priv; - struct p54_control_hdr *hdr; - struct p54_tx_control_filter *filter; - - hdr = kzalloc(sizeof(*hdr) + sizeof(*filter) + - priv->tx_hdr_len, GFP_KERNEL); - 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->len = cpu_to_le16(sizeof(*filter)); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*filter), NULL); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET); - - filter->filter_type = cpu_to_le16(filter_type); - memcpy(filter->dst, dst, ETH_ALEN); - if (!src) - memset(filter->src, ~0, ETH_ALEN); - else - memcpy(filter->src, src, ETH_ALEN); - filter->antenna = antenna; - filter->magic3 = cpu_to_le32(magic3); - filter->rx_addr = cpu_to_le32(priv->rx_end); - filter->max_rx = cpu_to_le16(0x0620); /* FIXME: for usb ver 1.. maybe */ - filter->rxhw = priv->rxhw; - filter->magic8 = cpu_to_le16(magic8); - filter->magic9 = cpu_to_le16(magic9); - - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*filter), 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 payload_len = sizeof(*chan) + sizeof(u32)*2 + - sizeof(*chan->curve_data) * - priv->curve_data->points_per_channel; - void *entry; - - hdr = kzalloc(sizeof(*hdr) + payload_len + - 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->len = cpu_to_le16(sizeof(*chan)); - hdr->type = cpu_to_le16(P54_CONTROL_TYPE_CHANNEL_CHANGE); - p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + payload_len, NULL); - - chan->magic1 = cpu_to_le16(0x1); - chan->magic2 = 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 = priv->output_limit[i].val_bpsk; - chan->val_qpsk = priv->output_limit[i].val_qpsk; - chan->val_16qam = priv->output_limit[i].val_16qam; - chan->val_64qam = priv->output_limit[i].val_64qam; - break; - } - if (i == priv->output_limit_len) - goto err; - - chan->pa_points_per_curve = priv->curve_data->points_per_channel; - - entry = priv->curve_data->data; - for (i = 0; i < priv->curve_data->channels; i++) { - if (*((__le16 *)entry) != freq) { - entry += sizeof(__le16); - entry += sizeof(struct pda_pa_curve_data_sample_rev1) * - chan->pa_points_per_curve; - continue; - } - - entry += sizeof(__le16); - memcpy(chan->curve_data, entry, sizeof(*chan->curve_data) * - chan->pa_points_per_curve); - break; - } - - memcpy(hdr->data + payload_len - 4, &chan->val_bpsk, 4); - - priv->tx(dev, hdr, sizeof(*hdr) + payload_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), NULL); - - 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, burst) \ -do { \ - queue.aifs = cpu_to_le16(ai_fs); \ - queue.cwmin = cpu_to_le16(cw_min); \ - queue.cwmax = cpu_to_le16(cw_max); \ - queue.txop = (burst == 0) ? \ - 0 : cpu_to_le16((burst * 100) / 32 + 1); \ -} 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, 0x000f); - P54_SET_QUEUE(vdcf->queue[1], 0x0002, 0x0007, 0x000f, 0x001e); - P54_SET_QUEUE(vdcf->queue[2], 0x0002, 0x000f, 0x03ff, 0x0014); - P54_SET_QUEUE(vdcf->queue[3], 0x0007, 0x000f, 0x03ff, 0x0000); -} - -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), NULL); - - vdcf = (struct p54_tx_control_vdcf *) hdr->data; - - if (dev->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME) { - vdcf->slottime = 9; - vdcf->magic1 = 0x00; - vdcf->magic2 = 0x10; - } 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; - - err = priv->open(dev); - if (!err) - priv->mode = IEEE80211_IF_TYPE_MNTR; - - return err; -} - -static void p54_stop(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - while ((skb = skb_dequeue(&priv->tx_queue))) { - struct memrecord *range = (struct memrecord *)&skb->cb; - if (range->control) - kfree(range->control); - kfree_skb(skb); - } - priv->stop(dev); - priv->mode = IEEE80211_IF_TYPE_INVALID; -} - -static int p54_add_interface(struct ieee80211_hw *dev, - struct ieee80211_if_init_conf *conf) -{ - struct p54_common *priv = dev->priv; - - if (priv->mode != IEEE80211_IF_TYPE_MNTR) - return -EOPNOTSUPP; - - switch (conf->type) { - case IEEE80211_IF_TYPE_STA: - priv->mode = conf->type; - break; - default: - return -EOPNOTSUPP; - } - - memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); - - p54_set_filter(dev, 0, priv->mac_addr, NULL, 0, 1, 0, 0xF642); - p54_set_filter(dev, 0, priv->mac_addr, NULL, 1, 0, 0, 0xF642); - - switch (conf->type) { - case IEEE80211_IF_TYPE_STA: - p54_set_filter(dev, 1, priv->mac_addr, NULL, 0, 0x15F, 0x1F4, 0); - 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 = IEEE80211_IF_TYPE_MNTR; - memset(priv->mac_addr, 0, ETH_ALEN); - p54_set_filter(dev, 0, priv->mac_addr, NULL, 2, 0, 0, 0); -} - -static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) -{ - int ret; - - ret = p54_set_freq(dev, cpu_to_le16(conf->freq)); - p54_set_vdcf(dev); - return ret; -} - -static int p54_config_interface(struct ieee80211_hw *dev, int if_id, - struct ieee80211_if_conf *conf) -{ - struct p54_common *priv = dev->priv; - - p54_set_filter(dev, 0, priv->mac_addr, conf->bssid, 0, 1, 0, 0xF642); - p54_set_filter(dev, 0, priv->mac_addr, conf->bssid, 2, 0, 0, 0); - p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0); - memcpy(priv->bssid, conf->bssid, ETH_ALEN); - 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; - - if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { - if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - p54_set_filter(dev, 0, priv->mac_addr, - NULL, 2, 0, 0, 0); - else - p54_set_filter(dev, 0, priv->mac_addr, - priv->bssid, 2, 0, 0, 0); - } -} - -static int p54_conf_tx(struct ieee80211_hw *dev, int 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 < 0) || (queue > 4))) { - P54_SET_QUEUE(vdcf->queue[queue], params->aifs, - params->cw_min, params->cw_max, params->burst_time); - } else - return -EINVAL; - - p54_set_vdcf(dev); - - return 0; -} - -static int p54_get_stats(struct ieee80211_hw *dev, - struct ieee80211_low_level_stats *stats) -{ - /* TODO */ - return 0; -} - -static int p54_get_tx_stats(struct ieee80211_hw *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct p54_common *priv = dev->priv; - unsigned int i; - - for (i = 0; i < dev->queues; i++) - memcpy(&stats->data[i], &priv->tx_stats.data[i], - sizeof(stats->data[i])); - - 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; - int i; - - dev = ieee80211_alloc_hw(priv_data_len, &p54_ops); - if (!dev) - return NULL; - - priv = dev->priv; - priv->mode = IEEE80211_IF_TYPE_INVALID; - skb_queue_head_init(&priv->tx_queue); - memcpy(priv->channels, p54_channels, sizeof(p54_channels)); - memcpy(priv->rates, p54_rates, sizeof(p54_rates)); - priv->modes[1].mode = MODE_IEEE80211B; - priv->modes[1].num_rates = 4; - priv->modes[1].rates = priv->rates; - priv->modes[1].num_channels = ARRAY_SIZE(p54_channels); - priv->modes[1].channels = priv->channels; - priv->modes[0].mode = MODE_IEEE80211G; - priv->modes[0].num_rates = ARRAY_SIZE(p54_rates); - priv->modes[0].rates = priv->rates; - priv->modes[0].num_channels = ARRAY_SIZE(p54_channels); - priv->modes[0].channels = priv->channels; - dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */ - IEEE80211_HW_RX_INCLUDES_FCS; - dev->channel_change_time = 1000; /* TODO: find actual value */ - dev->max_rssi = 127; - - priv->tx_stats.data[0].limit = 5; - dev->queues = 1; - - dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 + - sizeof(struct p54_tx_control_allocdata); - - 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) { - ieee80211_free_hw(dev); - return NULL; - } - - p54_init_vdcf(dev); - - for (i = 0; i < 2; i++) { - if (ieee80211_register_hwmode(dev, &priv->modes[i])) { - kfree(priv->cached_vdcf); - ieee80211_free_hw(dev); - return NULL; - } - } - - return dev; -} -EXPORT_SYMBOL_GPL(p54_init_common); - -void p54_free_common(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - 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); |