mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 13:06:45 +07:00
18d7260527
The p54 driver family reports a quality of 0 in iwconfig and iwlist output. This patch calculates a quality number as a percentage of the rssi to the maximum signal of 127 reported as the maximum signal. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1038 lines
29 KiB
C
1038 lines
29 KiB
C
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/*
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* Common code for mac80211 Prism54 drivers
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*
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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* Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
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*
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* Based on the islsm (softmac prism54) driver, which is:
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* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/firmware.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "p54.h"
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#include "p54common.h"
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MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_DESCRIPTION("Softmac Prism54 common code");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("prism54common");
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static struct ieee80211_rate p54_rates[] = {
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{ .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 60, .hw_value = 4, },
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{ .bitrate = 90, .hw_value = 5, },
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{ .bitrate = 120, .hw_value = 6, },
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{ .bitrate = 180, .hw_value = 7, },
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{ .bitrate = 240, .hw_value = 8, },
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{ .bitrate = 360, .hw_value = 9, },
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{ .bitrate = 480, .hw_value = 10, },
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{ .bitrate = 540, .hw_value = 11, },
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};
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static struct ieee80211_channel p54_channels[] = {
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{ .center_freq = 2412, .hw_value = 1, },
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{ .center_freq = 2417, .hw_value = 2, },
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{ .center_freq = 2422, .hw_value = 3, },
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{ .center_freq = 2427, .hw_value = 4, },
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{ .center_freq = 2432, .hw_value = 5, },
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{ .center_freq = 2437, .hw_value = 6, },
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{ .center_freq = 2442, .hw_value = 7, },
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{ .center_freq = 2447, .hw_value = 8, },
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{ .center_freq = 2452, .hw_value = 9, },
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{ .center_freq = 2457, .hw_value = 10, },
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{ .center_freq = 2462, .hw_value = 11, },
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{ .center_freq = 2467, .hw_value = 12, },
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{ .center_freq = 2472, .hw_value = 13, },
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{ .center_freq = 2484, .hw_value = 14, },
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};
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static struct ieee80211_supported_band band_2GHz = {
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.channels = p54_channels,
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.n_channels = ARRAY_SIZE(p54_channels),
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.bitrates = p54_rates,
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.n_bitrates = ARRAY_SIZE(p54_rates),
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};
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void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
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{
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struct p54_common *priv = dev->priv;
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struct bootrec_exp_if *exp_if;
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struct bootrec *bootrec;
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u32 *data = (u32 *)fw->data;
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u32 *end_data = (u32 *)fw->data + (fw->size >> 2);
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u8 *fw_version = NULL;
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size_t len;
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int i;
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if (priv->rx_start)
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return;
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while (data < end_data && *data)
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data++;
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while (data < end_data && !*data)
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data++;
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bootrec = (struct bootrec *) data;
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while (bootrec->data <= end_data &&
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(bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) {
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u32 code = le32_to_cpu(bootrec->code);
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switch (code) {
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case BR_CODE_COMPONENT_ID:
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switch (be32_to_cpu(*(__be32 *)bootrec->data)) {
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case FW_FMAC:
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printk(KERN_INFO "p54: FreeMAC firmware\n");
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break;
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case FW_LM20:
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printk(KERN_INFO "p54: LM20 firmware\n");
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break;
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case FW_LM86:
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printk(KERN_INFO "p54: LM86 firmware\n");
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break;
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case FW_LM87:
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printk(KERN_INFO "p54: LM87 firmware - not supported yet!\n");
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break;
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default:
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printk(KERN_INFO "p54: unknown firmware\n");
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break;
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}
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break;
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case BR_CODE_COMPONENT_VERSION:
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/* 24 bytes should be enough for all firmwares */
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if (strnlen((unsigned char*)bootrec->data, 24) < 24)
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fw_version = (unsigned char*)bootrec->data;
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break;
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case BR_CODE_DESCR:
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priv->rx_start = le32_to_cpu(((__le32 *)bootrec->data)[1]);
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/* FIXME add sanity checking */
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priv->rx_end = le32_to_cpu(((__le32 *)bootrec->data)[2]) - 0x3500;
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break;
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case BR_CODE_EXPOSED_IF:
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exp_if = (struct bootrec_exp_if *) bootrec->data;
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for (i = 0; i < (len * sizeof(*exp_if) / 4); i++)
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if (exp_if[i].if_id == cpu_to_le16(0x1a))
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priv->fw_var = le16_to_cpu(exp_if[i].variant);
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break;
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case BR_CODE_DEPENDENT_IF:
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break;
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case BR_CODE_END_OF_BRA:
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case LEGACY_BR_CODE_END_OF_BRA:
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end_data = NULL;
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break;
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default:
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break;
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}
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bootrec = (struct bootrec *)&bootrec->data[len];
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}
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if (fw_version)
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printk(KERN_INFO "p54: FW rev %s - Softmac protocol %x.%x\n",
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fw_version, priv->fw_var >> 8, priv->fw_var & 0xff);
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if (priv->fw_var >= 0x300) {
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/* Firmware supports QoS, use it! */
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priv->tx_stats[0].limit = 3;
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priv->tx_stats[1].limit = 4;
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priv->tx_stats[2].limit = 3;
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priv->tx_stats[3].limit = 1;
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dev->queues = 4;
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}
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}
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EXPORT_SYMBOL_GPL(p54_parse_firmware);
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static int p54_convert_rev0_to_rev1(struct ieee80211_hw *dev,
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struct pda_pa_curve_data *curve_data)
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{
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struct p54_common *priv = dev->priv;
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struct pda_pa_curve_data_sample_rev1 *rev1;
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struct pda_pa_curve_data_sample_rev0 *rev0;
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size_t cd_len = sizeof(*curve_data) +
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(curve_data->points_per_channel*sizeof(*rev1) + 2) *
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curve_data->channels;
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unsigned int i, j;
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void *source, *target;
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priv->curve_data = kmalloc(cd_len, GFP_KERNEL);
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if (!priv->curve_data)
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return -ENOMEM;
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memcpy(priv->curve_data, curve_data, sizeof(*curve_data));
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source = curve_data->data;
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target = priv->curve_data->data;
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for (i = 0; i < curve_data->channels; i++) {
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__le16 *freq = source;
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source += sizeof(__le16);
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*((__le16 *)target) = *freq;
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target += sizeof(__le16);
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for (j = 0; j < curve_data->points_per_channel; j++) {
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rev1 = target;
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rev0 = source;
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rev1->rf_power = rev0->rf_power;
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rev1->pa_detector = rev0->pa_detector;
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rev1->data_64qam = rev0->pcv;
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/* "invent" the points for the other modulations */
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#define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y)
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rev1->data_16qam = SUB(rev0->pcv, 12);
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rev1->data_qpsk = SUB(rev1->data_16qam, 12);
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rev1->data_bpsk = SUB(rev1->data_qpsk, 12);
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rev1->data_barker= SUB(rev1->data_bpsk, 14);
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#undef SUB
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target += sizeof(*rev1);
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source += sizeof(*rev0);
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}
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}
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return 0;
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}
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int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
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{
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struct p54_common *priv = dev->priv;
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struct eeprom_pda_wrap *wrap = NULL;
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struct pda_entry *entry;
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unsigned int data_len, entry_len;
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void *tmp;
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int err;
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u8 *end = (u8 *)eeprom + len;
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wrap = (struct eeprom_pda_wrap *) eeprom;
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entry = (void *)wrap->data + le16_to_cpu(wrap->len);
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/* verify that at least the entry length/code fits */
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while ((u8 *)entry <= end - sizeof(*entry)) {
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entry_len = le16_to_cpu(entry->len);
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data_len = ((entry_len - 1) << 1);
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/* abort if entry exceeds whole structure */
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if ((u8 *)entry + sizeof(*entry) + data_len > end)
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break;
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switch (le16_to_cpu(entry->code)) {
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case PDR_MAC_ADDRESS:
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SET_IEEE80211_PERM_ADDR(dev, entry->data);
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break;
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case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS:
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if (data_len < 2) {
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err = -EINVAL;
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goto err;
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}
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if (2 + entry->data[1]*sizeof(*priv->output_limit) > data_len) {
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err = -EINVAL;
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goto err;
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}
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priv->output_limit = kmalloc(entry->data[1] *
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sizeof(*priv->output_limit), GFP_KERNEL);
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if (!priv->output_limit) {
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err = -ENOMEM;
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goto err;
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}
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memcpy(priv->output_limit, &entry->data[2],
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entry->data[1]*sizeof(*priv->output_limit));
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priv->output_limit_len = entry->data[1];
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break;
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case PDR_PRISM_PA_CAL_CURVE_DATA:
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if (data_len < sizeof(struct pda_pa_curve_data)) {
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err = -EINVAL;
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goto err;
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}
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if (((struct pda_pa_curve_data *)entry->data)->cal_method_rev) {
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priv->curve_data = kmalloc(data_len, GFP_KERNEL);
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if (!priv->curve_data) {
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err = -ENOMEM;
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goto err;
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}
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memcpy(priv->curve_data, entry->data, data_len);
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} else {
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err = p54_convert_rev0_to_rev1(dev, (struct pda_pa_curve_data *)entry->data);
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if (err)
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goto err;
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}
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break;
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case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
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priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
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if (!priv->iq_autocal) {
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err = -ENOMEM;
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goto err;
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}
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memcpy(priv->iq_autocal, entry->data, data_len);
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priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
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break;
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case PDR_INTERFACE_LIST:
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tmp = entry->data;
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while ((u8 *)tmp < entry->data + data_len) {
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struct bootrec_exp_if *exp_if = tmp;
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if (le16_to_cpu(exp_if->if_id) == 0xF)
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priv->rxhw = exp_if->variant & cpu_to_le16(0x07);
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tmp += sizeof(struct bootrec_exp_if);
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}
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break;
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case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
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priv->version = *(u8 *)(entry->data + 1);
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break;
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case PDR_END:
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/* make it overrun */
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entry_len = len;
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break;
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default:
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printk(KERN_INFO "p54: unknown eeprom code : 0x%x\n",
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le16_to_cpu(entry->code));
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break;
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}
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entry = (void *)entry + (entry_len + 1)*2;
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}
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if (!priv->iq_autocal || !priv->output_limit || !priv->curve_data) {
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printk(KERN_ERR "p54: not all required entries found in eeprom!\n");
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err = -EINVAL;
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goto err;
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}
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return 0;
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err:
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if (priv->iq_autocal) {
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kfree(priv->iq_autocal);
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priv->iq_autocal = NULL;
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}
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if (priv->output_limit) {
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kfree(priv->output_limit);
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priv->output_limit = NULL;
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}
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if (priv->curve_data) {
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kfree(priv->curve_data);
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priv->curve_data = NULL;
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}
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printk(KERN_ERR "p54: eeprom parse failed!\n");
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return err;
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}
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EXPORT_SYMBOL_GPL(p54_parse_eeprom);
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void p54_fill_eeprom_readback(struct p54_control_hdr *hdr)
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{
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struct p54_eeprom_lm86 *eeprom_hdr;
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hdr->magic1 = cpu_to_le16(0x8000);
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hdr->len = cpu_to_le16(sizeof(*eeprom_hdr) + 0x2000);
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hdr->type = cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK);
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hdr->retry1 = hdr->retry2 = 0;
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eeprom_hdr = (struct p54_eeprom_lm86 *) hdr->data;
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eeprom_hdr->offset = 0x0;
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eeprom_hdr->len = cpu_to_le16(0x2000);
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}
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EXPORT_SYMBOL_GPL(p54_fill_eeprom_readback);
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static void p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data;
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struct ieee80211_rx_status rx_status = {0};
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u16 freq = le16_to_cpu(hdr->freq);
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rx_status.signal = hdr->rssi;
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/* XX correct? */
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rx_status.qual = (100 * hdr->rssi) / 127;
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rx_status.rate_idx = hdr->rate & 0xf;
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rx_status.freq = freq;
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rx_status.band = IEEE80211_BAND_2GHZ;
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rx_status.antenna = hdr->antenna;
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rx_status.mactime = le64_to_cpu(hdr->timestamp);
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rx_status.flag |= RX_FLAG_TSFT;
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skb_pull(skb, sizeof(*hdr));
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skb_trim(skb, le16_to_cpu(hdr->len));
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ieee80211_rx_irqsafe(dev, skb, &rx_status);
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}
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static void inline p54_wake_free_queues(struct ieee80211_hw *dev)
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{
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struct p54_common *priv = dev->priv;
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int i;
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for (i = 0; i < dev->queues; i++)
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if (priv->tx_stats[i].len < priv->tx_stats[i].limit)
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ieee80211_wake_queue(dev, i);
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}
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static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54_common *priv = dev->priv;
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struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
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struct p54_frame_sent_hdr *payload = (struct p54_frame_sent_hdr *) hdr->data;
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struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next;
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u32 addr = le32_to_cpu(hdr->req_id) - 0x70;
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struct memrecord *range = NULL;
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u32 freed = 0;
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u32 last_addr = priv->rx_start;
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while (entry != (struct sk_buff *)&priv->tx_queue) {
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
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range = (void *)info->driver_data;
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if (range->start_addr == addr) {
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struct p54_control_hdr *entry_hdr;
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struct p54_tx_control_allocdata *entry_data;
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int pad = 0;
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if (entry->next != (struct sk_buff *)&priv->tx_queue) {
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struct ieee80211_tx_info *ni;
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struct memrecord *mr;
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ni = IEEE80211_SKB_CB(entry->next);
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mr = (struct memrecord *)ni->driver_data;
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freed = mr->start_addr - last_addr;
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} else
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freed = priv->rx_end - last_addr;
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last_addr = range->end_addr;
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__skb_unlink(entry, &priv->tx_queue);
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memset(&info->status, 0, sizeof(info->status));
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priv->tx_stats[skb_get_queue_mapping(skb)].len--;
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entry_hdr = (struct p54_control_hdr *) entry->data;
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entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data;
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if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0)
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pad = entry_data->align[0];
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if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
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if (!(payload->status & 0x01))
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info->flags |= IEEE80211_TX_STAT_ACK;
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else
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info->status.excessive_retries = 1;
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}
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info->status.retry_count = payload->retries - 1;
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info->status.ack_signal = le16_to_cpu(payload->ack_rssi);
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skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
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ieee80211_tx_status_irqsafe(dev, entry);
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break;
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} else
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last_addr = range->end_addr;
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entry = entry->next;
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}
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if (freed >= IEEE80211_MAX_RTS_THRESHOLD + 0x170 +
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sizeof(struct p54_control_hdr))
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p54_wake_free_queues(dev);
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}
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static void p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
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switch (le16_to_cpu(hdr->type)) {
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case P54_CONTROL_TYPE_TXDONE:
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p54_rx_frame_sent(dev, skb);
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break;
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case P54_CONTROL_TYPE_BBP:
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break;
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default:
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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 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 + 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;
|
|
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 < 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_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 p54_tx_control_allocdata *txhdr;
|
|
size_t padding, len;
|
|
u8 rate;
|
|
|
|
current_queue = &priv->tx_stats[skb_get_queue_mapping(skb)];
|
|
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;
|
|
|
|
memset(txhdr->wep_key, 0x0, 16);
|
|
txhdr->padding = 0;
|
|
txhdr->padding2 = 0;
|
|
|
|
/* 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;
|
|
if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
|
|
rate |= 0x40;
|
|
else if (info->flags & IEEE80211_TX_CTL_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(skb_get_queue_mapping(skb) + 4);
|
|
txhdr->magic4 = 0;
|
|
txhdr->antenna = (info->antenna_sel_tx == 0) ?
|
|
2 : info->antenna_sel_tx - 1;
|
|
txhdr->output_power = 0x7f; // HW Maximum
|
|
txhdr->magic5 = (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
|
|
0 : ((rate > 0x3) ? cpu_to_le32(0x33) : cpu_to_le32(0x23));
|
|
if (padding)
|
|
txhdr->align[0] = padding;
|
|
|
|
/* 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 *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_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->len = cpu_to_le16(sizeof(*filter));
|
|
p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*filter));
|
|
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);
|
|
|
|
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));
|
|
|
|
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 = 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)))
|
|
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->channel->center_freq));
|
|
p54_set_vdcf(dev);
|
|
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;
|
|
|
|
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, 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_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;
|
|
|
|
memcpy(stats, &priv->tx_stats, 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 = IEEE80211_IF_TYPE_INVALID;
|
|
skb_queue_head_init(&priv->tx_queue);
|
|
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
|
|
dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */
|
|
IEEE80211_HW_RX_INCLUDES_FCS |
|
|
IEEE80211_HW_SIGNAL_UNSPEC;
|
|
dev->channel_change_time = 1000; /* TODO: find actual value */
|
|
dev->max_signal = 127;
|
|
|
|
priv->tx_stats[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);
|
|
|
|
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);
|