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![Paul Gortmaker](/assets/img/avatar_default.png)
These were getting the macros from an implicit module.h include via device.h, but we are planning to clean that up. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c This relatively recently added file uses EXPORT_SYMBOL and hence needs export.h included so that it is compatible with the module.h split up work. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
922 lines
23 KiB
C
922 lines
23 KiB
C
/*
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* EEPROM parser 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) 2007-2009, Christian Lamparter <chunkeey@web.de>
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* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
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*
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* Based on:
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* - 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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* - stlc45xx driver
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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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 <linux/sort.h>
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#include <linux/slab.h>
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#include <net/mac80211.h>
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#include <linux/crc-ccitt.h>
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#include <linux/export.h>
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#include "p54.h"
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#include "eeprom.h"
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#include "lmac.h"
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static struct ieee80211_rate p54_bgrates[] = {
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{ .bitrate = 10, .hw_value = 0, },
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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_rate p54_arates[] = {
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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 p54_rssi_db_entry p54_rssi_default = {
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/*
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* The defaults are taken from usb-logs of the
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* vendor driver. So, they should be safe to
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* use in case we can't get a match from the
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* rssi <-> dBm conversion database.
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*/
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.mul = 130,
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.add = -398,
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};
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#define CHAN_HAS_CAL BIT(0)
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#define CHAN_HAS_LIMIT BIT(1)
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#define CHAN_HAS_CURVE BIT(2)
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#define CHAN_HAS_ALL (CHAN_HAS_CAL | CHAN_HAS_LIMIT | CHAN_HAS_CURVE)
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struct p54_channel_entry {
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u16 freq;
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u16 data;
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int index;
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enum ieee80211_band band;
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};
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struct p54_channel_list {
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struct p54_channel_entry *channels;
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size_t entries;
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size_t max_entries;
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size_t band_channel_num[IEEE80211_NUM_BANDS];
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};
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static int p54_get_band_from_freq(u16 freq)
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{
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/* FIXME: sync these values with the 802.11 spec */
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if ((freq >= 2412) && (freq <= 2484))
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return IEEE80211_BAND_2GHZ;
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if ((freq >= 4920) && (freq <= 5825))
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return IEEE80211_BAND_5GHZ;
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return -1;
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}
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static int same_band(u16 freq, u16 freq2)
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{
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return p54_get_band_from_freq(freq) == p54_get_band_from_freq(freq2);
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}
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static int p54_compare_channels(const void *_a,
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const void *_b)
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{
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const struct p54_channel_entry *a = _a;
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const struct p54_channel_entry *b = _b;
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return a->freq - b->freq;
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}
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static int p54_compare_rssichan(const void *_a,
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const void *_b)
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{
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const struct p54_rssi_db_entry *a = _a;
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const struct p54_rssi_db_entry *b = _b;
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return a->freq - b->freq;
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}
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static int p54_fill_band_bitrates(struct ieee80211_hw *dev,
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struct ieee80211_supported_band *band_entry,
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enum ieee80211_band band)
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{
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/* TODO: generate rate array dynamically */
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switch (band) {
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case IEEE80211_BAND_2GHZ:
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band_entry->bitrates = p54_bgrates;
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band_entry->n_bitrates = ARRAY_SIZE(p54_bgrates);
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break;
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case IEEE80211_BAND_5GHZ:
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band_entry->bitrates = p54_arates;
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band_entry->n_bitrates = ARRAY_SIZE(p54_arates);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int p54_generate_band(struct ieee80211_hw *dev,
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struct p54_channel_list *list,
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unsigned int *chan_num,
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enum ieee80211_band band)
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{
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struct p54_common *priv = dev->priv;
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struct ieee80211_supported_band *tmp, *old;
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unsigned int i, j;
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int ret = -ENOMEM;
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if ((!list->entries) || (!list->band_channel_num[band]))
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return -EINVAL;
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tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
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if (!tmp)
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goto err_out;
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tmp->channels = kzalloc(sizeof(struct ieee80211_channel) *
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list->band_channel_num[band], GFP_KERNEL);
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if (!tmp->channels)
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goto err_out;
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ret = p54_fill_band_bitrates(dev, tmp, band);
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if (ret)
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goto err_out;
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for (i = 0, j = 0; (j < list->band_channel_num[band]) &&
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(i < list->entries); i++) {
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struct p54_channel_entry *chan = &list->channels[i];
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if (chan->band != band)
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continue;
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if (chan->data != CHAN_HAS_ALL) {
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wiphy_err(dev->wiphy, "%s%s%s is/are missing for "
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"channel:%d [%d MHz].\n",
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(chan->data & CHAN_HAS_CAL ? "" :
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" [iqauto calibration data]"),
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(chan->data & CHAN_HAS_LIMIT ? "" :
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" [output power limits]"),
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(chan->data & CHAN_HAS_CURVE ? "" :
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" [curve data]"),
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chan->index, chan->freq);
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continue;
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}
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tmp->channels[j].band = chan->band;
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tmp->channels[j].center_freq = chan->freq;
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priv->survey[*chan_num].channel = &tmp->channels[j];
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priv->survey[*chan_num].filled = SURVEY_INFO_NOISE_DBM |
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SURVEY_INFO_CHANNEL_TIME |
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SURVEY_INFO_CHANNEL_TIME_BUSY |
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SURVEY_INFO_CHANNEL_TIME_TX;
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tmp->channels[j].hw_value = (*chan_num);
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j++;
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(*chan_num)++;
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}
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if (j == 0) {
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wiphy_err(dev->wiphy, "Disabling totally damaged %d GHz band\n",
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(band == IEEE80211_BAND_2GHZ) ? 2 : 5);
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ret = -ENODATA;
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goto err_out;
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}
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tmp->n_channels = j;
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old = priv->band_table[band];
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priv->band_table[band] = tmp;
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if (old) {
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kfree(old->channels);
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kfree(old);
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}
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return 0;
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err_out:
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if (tmp) {
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kfree(tmp->channels);
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kfree(tmp);
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}
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return ret;
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}
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static void p54_update_channel_param(struct p54_channel_list *list,
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u16 freq, u16 data)
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{
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int band, i;
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/*
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* usually all lists in the eeprom are mostly sorted.
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* so it's very likely that the entry we are looking for
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* is right at the end of the list
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*/
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for (i = list->entries; i >= 0; i--) {
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if (freq == list->channels[i].freq) {
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list->channels[i].data |= data;
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break;
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}
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}
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if ((i < 0) && (list->entries < list->max_entries)) {
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/* entry does not exist yet. Initialize a new one. */
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band = p54_get_band_from_freq(freq);
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/*
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* filter out frequencies which don't belong into
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* any supported band.
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*/
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if (band < 0)
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return ;
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i = list->entries++;
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list->band_channel_num[band]++;
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list->channels[i].freq = freq;
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list->channels[i].data = data;
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list->channels[i].band = band;
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list->channels[i].index = ieee80211_frequency_to_channel(freq);
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/* TODO: parse output_limit and fill max_power */
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}
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}
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static int p54_generate_channel_lists(struct ieee80211_hw *dev)
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{
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struct p54_common *priv = dev->priv;
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struct p54_channel_list *list;
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unsigned int i, j, k, max_channel_num;
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int ret = 0;
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u16 freq;
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if ((priv->iq_autocal_len != priv->curve_data->entries) ||
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(priv->iq_autocal_len != priv->output_limit->entries))
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wiphy_err(dev->wiphy,
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"Unsupported or damaged EEPROM detected. "
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"You may not be able to use all channels.\n");
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max_channel_num = max_t(unsigned int, priv->output_limit->entries,
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priv->iq_autocal_len);
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max_channel_num = max_t(unsigned int, max_channel_num,
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priv->curve_data->entries);
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list = kzalloc(sizeof(*list), GFP_KERNEL);
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if (!list) {
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ret = -ENOMEM;
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goto free;
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}
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priv->chan_num = max_channel_num;
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priv->survey = kzalloc(sizeof(struct survey_info) * max_channel_num,
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GFP_KERNEL);
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if (!priv->survey) {
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ret = -ENOMEM;
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goto free;
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}
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list->max_entries = max_channel_num;
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list->channels = kzalloc(sizeof(struct p54_channel_entry) *
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max_channel_num, GFP_KERNEL);
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if (!list->channels) {
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ret = -ENOMEM;
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goto free;
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}
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for (i = 0; i < max_channel_num; i++) {
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if (i < priv->iq_autocal_len) {
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freq = le16_to_cpu(priv->iq_autocal[i].freq);
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p54_update_channel_param(list, freq, CHAN_HAS_CAL);
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}
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if (i < priv->output_limit->entries) {
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freq = le16_to_cpup((__le16 *) (i *
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priv->output_limit->entry_size +
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priv->output_limit->offset +
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priv->output_limit->data));
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p54_update_channel_param(list, freq, CHAN_HAS_LIMIT);
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}
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if (i < priv->curve_data->entries) {
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freq = le16_to_cpup((__le16 *) (i *
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priv->curve_data->entry_size +
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priv->curve_data->offset +
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priv->curve_data->data));
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p54_update_channel_param(list, freq, CHAN_HAS_CURVE);
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}
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}
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/* sort the channel list by frequency */
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sort(list->channels, list->entries, sizeof(struct p54_channel_entry),
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p54_compare_channels, NULL);
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k = 0;
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for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) {
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if (p54_generate_band(dev, list, &k, i) == 0)
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j++;
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}
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if (j == 0) {
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/* no useable band available. */
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ret = -EINVAL;
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}
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free:
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if (list) {
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kfree(list->channels);
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kfree(list);
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}
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if (ret) {
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kfree(priv->survey);
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priv->survey = NULL;
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}
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return ret;
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}
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|
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static int p54_convert_rev0(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 p54_pa_curve_data_sample *dst;
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struct pda_pa_curve_data_sample_rev0 *src;
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size_t cd_len = sizeof(*curve_data) +
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(curve_data->points_per_channel*sizeof(*dst) + 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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|
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priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len,
|
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GFP_KERNEL);
|
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if (!priv->curve_data)
|
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return -ENOMEM;
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|
|
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priv->curve_data->entries = curve_data->channels;
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priv->curve_data->entry_size = sizeof(__le16) +
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sizeof(*dst) * curve_data->points_per_channel;
|
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priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
|
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priv->curve_data->len = cd_len;
|
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memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
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source = curve_data->data;
|
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target = ((struct pda_pa_curve_data *) priv->curve_data->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;
|
|
target += sizeof(__le16);
|
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for (j = 0; j < curve_data->points_per_channel; j++) {
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dst = target;
|
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src = source;
|
|
|
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dst->rf_power = src->rf_power;
|
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dst->pa_detector = src->pa_detector;
|
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dst->data_64qam = src->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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dst->data_16qam = SUB(src->pcv, 12);
|
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dst->data_qpsk = SUB(dst->data_16qam, 12);
|
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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 = kzalloc(cd_len + sizeof(*priv->curve_data),
|
|
GFP_KERNEL);
|
|
if (!priv->curve_data)
|
|
return -ENOMEM;
|
|
|
|
priv->curve_data->entries = curve_data->channels;
|
|
priv->curve_data->entry_size = sizeof(__le16) +
|
|
sizeof(*dst) * curve_data->points_per_channel;
|
|
priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
|
|
priv->curve_data->len = cd_len;
|
|
memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
|
|
source = curve_data->data;
|
|
target = ((struct pda_pa_curve_data *) priv->curve_data->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[] = { "INVALID-0", "Duette3", "Duette2",
|
|
"Frisbee", "Xbow", "Longbow", "INVALID-6", "INVALID-7" };
|
|
|
|
static int p54_parse_rssical(struct ieee80211_hw *dev,
|
|
u8 *data, int len, u16 type)
|
|
{
|
|
struct p54_common *priv = dev->priv;
|
|
struct p54_rssi_db_entry *entry;
|
|
size_t db_len, entries;
|
|
int offset = 0, i;
|
|
|
|
if (type != PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) {
|
|
entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
|
|
if (len != sizeof(struct pda_rssi_cal_entry) * entries) {
|
|
wiphy_err(dev->wiphy, "rssical size mismatch.\n");
|
|
goto err_data;
|
|
}
|
|
} else {
|
|
/*
|
|
* Some devices (Dell 1450 USB, Xbow 5GHz card, etc...)
|
|
* have an empty two byte header.
|
|
*/
|
|
if (*((__le16 *)&data[offset]) == cpu_to_le16(0))
|
|
offset += 2;
|
|
|
|
entries = (len - offset) /
|
|
sizeof(struct pda_rssi_cal_ext_entry);
|
|
|
|
if ((len - offset) % sizeof(struct pda_rssi_cal_ext_entry) ||
|
|
entries <= 0) {
|
|
wiphy_err(dev->wiphy, "invalid rssi database.\n");
|
|
goto err_data;
|
|
}
|
|
}
|
|
|
|
db_len = sizeof(*entry) * entries;
|
|
priv->rssi_db = kzalloc(db_len + sizeof(*priv->rssi_db), GFP_KERNEL);
|
|
if (!priv->rssi_db)
|
|
return -ENOMEM;
|
|
|
|
priv->rssi_db->offset = 0;
|
|
priv->rssi_db->entries = entries;
|
|
priv->rssi_db->entry_size = sizeof(*entry);
|
|
priv->rssi_db->len = db_len;
|
|
|
|
entry = (void *)((unsigned long)priv->rssi_db->data + priv->rssi_db->offset);
|
|
if (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) {
|
|
struct pda_rssi_cal_ext_entry *cal = (void *) &data[offset];
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
entry[i].freq = le16_to_cpu(cal[i].freq);
|
|
entry[i].mul = (s16) le16_to_cpu(cal[i].mul);
|
|
entry[i].add = (s16) le16_to_cpu(cal[i].add);
|
|
}
|
|
} else {
|
|
struct pda_rssi_cal_entry *cal = (void *) &data[offset];
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
u16 freq = 0;
|
|
switch (i) {
|
|
case IEEE80211_BAND_2GHZ:
|
|
freq = 2437;
|
|
break;
|
|
case IEEE80211_BAND_5GHZ:
|
|
freq = 5240;
|
|
break;
|
|
}
|
|
|
|
entry[i].freq = freq;
|
|
entry[i].mul = (s16) le16_to_cpu(cal[i].mul);
|
|
entry[i].add = (s16) le16_to_cpu(cal[i].add);
|
|
}
|
|
}
|
|
|
|
/* sort the list by channel frequency */
|
|
sort(entry, entries, sizeof(*entry), p54_compare_rssichan, NULL);
|
|
return 0;
|
|
|
|
err_data:
|
|
wiphy_err(dev->wiphy,
|
|
"rssi calibration data packing type:(%x) len:%d.\n",
|
|
type, len);
|
|
|
|
print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE, data, len);
|
|
|
|
wiphy_err(dev->wiphy, "please report this issue.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
struct p54_rssi_db_entry *p54_rssi_find(struct p54_common *priv, const u16 freq)
|
|
{
|
|
struct p54_rssi_db_entry *entry;
|
|
int i, found = -1;
|
|
|
|
if (!priv->rssi_db)
|
|
return &p54_rssi_default;
|
|
|
|
entry = (void *)(priv->rssi_db->data + priv->rssi_db->offset);
|
|
for (i = 0; i < priv->rssi_db->entries; i++) {
|
|
if (!same_band(freq, entry[i].freq))
|
|
continue;
|
|
|
|
if (found == -1) {
|
|
found = i;
|
|
continue;
|
|
}
|
|
|
|
/* nearest match */
|
|
if (abs(freq - entry[i].freq) <
|
|
abs(freq - entry[found].freq)) {
|
|
found = i;
|
|
continue;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return found < 0 ? &p54_rssi_default : &entry[found];
|
|
}
|
|
|
|
static void p54_parse_default_country(struct ieee80211_hw *dev,
|
|
void *data, int len)
|
|
{
|
|
struct pda_country *country;
|
|
|
|
if (len != sizeof(*country)) {
|
|
wiphy_err(dev->wiphy,
|
|
"found possible invalid default country eeprom entry. (entry size: %d)\n",
|
|
len);
|
|
|
|
print_hex_dump_bytes("country:", DUMP_PREFIX_NONE,
|
|
data, len);
|
|
|
|
wiphy_err(dev->wiphy, "please report this issue.\n");
|
|
return;
|
|
}
|
|
|
|
country = (struct pda_country *) data;
|
|
if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO)
|
|
regulatory_hint(dev->wiphy, country->alpha2);
|
|
else {
|
|
/* TODO:
|
|
* write a shared/common function that converts
|
|
* "Regulatory domain codes" (802.11-2007 14.8.2.2)
|
|
* into ISO/IEC 3166-1 alpha2 for regulatory_hint.
|
|
*/
|
|
}
|
|
}
|
|
|
|
static int p54_convert_output_limits(struct ieee80211_hw *dev,
|
|
u8 *data, size_t len)
|
|
{
|
|
struct p54_common *priv = dev->priv;
|
|
|
|
if (len < 2)
|
|
return -EINVAL;
|
|
|
|
if (data[0] != 0) {
|
|
wiphy_err(dev->wiphy, "unknown output power db revision:%x\n",
|
|
data[0]);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len)
|
|
return -EINVAL;
|
|
|
|
priv->output_limit = kmalloc(data[1] *
|
|
sizeof(struct pda_channel_output_limit) +
|
|
sizeof(*priv->output_limit), GFP_KERNEL);
|
|
|
|
if (!priv->output_limit)
|
|
return -ENOMEM;
|
|
|
|
priv->output_limit->offset = 0;
|
|
priv->output_limit->entries = data[1];
|
|
priv->output_limit->entry_size =
|
|
sizeof(struct pda_channel_output_limit);
|
|
priv->output_limit->len = priv->output_limit->entry_size *
|
|
priv->output_limit->entries +
|
|
priv->output_limit->offset;
|
|
|
|
memcpy(priv->output_limit->data, &data[2],
|
|
data[1] * sizeof(struct pda_channel_output_limit));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src,
|
|
size_t total_len)
|
|
{
|
|
struct p54_cal_database *dst;
|
|
size_t payload_len, entries, entry_size, offset;
|
|
|
|
payload_len = le16_to_cpu(src->len);
|
|
entries = le16_to_cpu(src->entries);
|
|
entry_size = le16_to_cpu(src->entry_size);
|
|
offset = le16_to_cpu(src->offset);
|
|
if (((entries * entry_size + offset) != payload_len) ||
|
|
(payload_len + sizeof(*src) != total_len))
|
|
return NULL;
|
|
|
|
dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL);
|
|
if (!dst)
|
|
return NULL;
|
|
|
|
dst->entries = entries;
|
|
dst->entry_size = entry_size;
|
|
dst->offset = offset;
|
|
dst->len = payload_len;
|
|
|
|
memcpy(dst->data, src->data, payload_len);
|
|
return dst;
|
|
}
|
|
|
|
int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
|
|
{
|
|
struct p54_common *priv = dev->priv;
|
|
struct eeprom_pda_wrap *wrap;
|
|
struct pda_entry *entry;
|
|
unsigned int data_len, entry_len;
|
|
void *tmp;
|
|
int err;
|
|
u8 *end = (u8 *)eeprom + len;
|
|
u16 synth = 0;
|
|
u16 crc16 = ~0;
|
|
|
|
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:
|
|
if (data_len != ETH_ALEN)
|
|
break;
|
|
SET_IEEE80211_PERM_ADDR(dev, entry->data);
|
|
break;
|
|
case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS:
|
|
if (priv->output_limit)
|
|
break;
|
|
err = p54_convert_output_limits(dev, entry->data,
|
|
data_len);
|
|
if (err)
|
|
goto err;
|
|
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:
|
|
wiphy_err(dev->wiphy,
|
|
"unknown curve data revision %d\n",
|
|
curve_data->cal_method_rev);
|
|
err = -ENODEV;
|
|
break;
|
|
}
|
|
if (err)
|
|
goto err;
|
|
}
|
|
break;
|
|
case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
|
|
priv->iq_autocal = kmemdup(entry->data, data_len,
|
|
GFP_KERNEL);
|
|
if (!priv->iq_autocal) {
|
|
err = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
|
|
break;
|
|
case PDR_DEFAULT_COUNTRY:
|
|
p54_parse_default_country(dev, entry->data, data_len);
|
|
break;
|
|
case PDR_INTERFACE_LIST:
|
|
tmp = entry->data;
|
|
while ((u8 *)tmp < entry->data + data_len) {
|
|
struct exp_if *exp_if = tmp;
|
|
if (exp_if->if_id == cpu_to_le16(IF_ID_ISL39000))
|
|
synth = le16_to_cpu(exp_if->variant);
|
|
tmp += sizeof(*exp_if);
|
|
}
|
|
break;
|
|
case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
|
|
if (data_len < 2)
|
|
break;
|
|
priv->version = *(u8 *)(entry->data + 1);
|
|
break;
|
|
case PDR_RSSI_LINEAR_APPROXIMATION:
|
|
case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
|
|
case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
|
|
err = p54_parse_rssical(dev, entry->data, data_len,
|
|
le16_to_cpu(entry->code));
|
|
if (err)
|
|
goto err;
|
|
break;
|
|
case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOMV2: {
|
|
struct pda_custom_wrapper *pda = (void *) entry->data;
|
|
__le16 *src;
|
|
u16 *dst;
|
|
int i;
|
|
|
|
if (priv->rssi_db || data_len < sizeof(*pda))
|
|
break;
|
|
|
|
priv->rssi_db = p54_convert_db(pda, data_len);
|
|
if (!priv->rssi_db)
|
|
break;
|
|
|
|
src = (void *) priv->rssi_db->data;
|
|
dst = (void *) priv->rssi_db->data;
|
|
|
|
for (i = 0; i < priv->rssi_db->entries; i++)
|
|
*(dst++) = (s16) le16_to_cpu(*(src++));
|
|
|
|
}
|
|
break;
|
|
case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: {
|
|
struct pda_custom_wrapper *pda = (void *) entry->data;
|
|
if (priv->output_limit || data_len < sizeof(*pda))
|
|
break;
|
|
priv->output_limit = p54_convert_db(pda, data_len);
|
|
}
|
|
break;
|
|
case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: {
|
|
struct pda_custom_wrapper *pda = (void *) entry->data;
|
|
if (priv->curve_data || data_len < sizeof(*pda))
|
|
break;
|
|
priv->curve_data = p54_convert_db(pda, data_len);
|
|
}
|
|
break;
|
|
case PDR_END:
|
|
crc16 = ~crc_ccitt(crc16, (u8 *) entry, sizeof(*entry));
|
|
if (crc16 != le16_to_cpup((__le16 *)entry->data)) {
|
|
wiphy_err(dev->wiphy, "eeprom failed checksum "
|
|
"test!\n");
|
|
err = -ENOMSG;
|
|
goto err;
|
|
} else {
|
|
goto good_eeprom;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
crc16 = crc_ccitt(crc16, (u8 *)entry, (entry_len + 1) * 2);
|
|
entry = (void *)entry + (entry_len + 1) * 2;
|
|
}
|
|
|
|
wiphy_err(dev->wiphy, "unexpected end of eeprom data.\n");
|
|
err = -ENODATA;
|
|
goto err;
|
|
|
|
good_eeprom:
|
|
if (!synth || !priv->iq_autocal || !priv->output_limit ||
|
|
!priv->curve_data) {
|
|
wiphy_err(dev->wiphy,
|
|
"not all required entries found in eeprom!\n");
|
|
err = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
err = p54_generate_channel_lists(dev);
|
|
if (err)
|
|
goto err;
|
|
|
|
priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
|
|
if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
|
|
p54_init_xbow_synth(priv);
|
|
if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
|
|
dev->wiphy->bands[IEEE80211_BAND_2GHZ] =
|
|
priv->band_table[IEEE80211_BAND_2GHZ];
|
|
if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
|
|
dev->wiphy->bands[IEEE80211_BAND_5GHZ] =
|
|
priv->band_table[IEEE80211_BAND_5GHZ];
|
|
if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED)
|
|
priv->rx_diversity_mask = 3;
|
|
if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED)
|
|
priv->tx_diversity_mask = 3;
|
|
|
|
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
|
|
u8 perm_addr[ETH_ALEN];
|
|
|
|
wiphy_warn(dev->wiphy,
|
|
"Invalid hwaddr! Using randomly generated MAC addr\n");
|
|
random_ether_addr(perm_addr);
|
|
SET_IEEE80211_PERM_ADDR(dev, perm_addr);
|
|
}
|
|
|
|
priv->cur_rssi = &p54_rssi_default;
|
|
|
|
wiphy_info(dev->wiphy, "hwaddr %pM, MAC:isl38%02x RF:%s\n",
|
|
dev->wiphy->perm_addr, priv->version,
|
|
p54_rf_chips[priv->rxhw]);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
kfree(priv->iq_autocal);
|
|
kfree(priv->output_limit);
|
|
kfree(priv->curve_data);
|
|
kfree(priv->rssi_db);
|
|
kfree(priv->survey);
|
|
priv->iq_autocal = NULL;
|
|
priv->output_limit = NULL;
|
|
priv->curve_data = NULL;
|
|
priv->rssi_db = NULL;
|
|
priv->survey = NULL;
|
|
|
|
wiphy_err(dev->wiphy, "eeprom parse failed!\n");
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(p54_parse_eeprom);
|
|
|
|
int p54_read_eeprom(struct ieee80211_hw *dev)
|
|
{
|
|
struct p54_common *priv = dev->priv;
|
|
size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
|
|
int ret = -ENOMEM;
|
|
void *eeprom;
|
|
|
|
maxblocksize = EEPROM_READBACK_LEN;
|
|
if (priv->fw_var >= 0x509)
|
|
maxblocksize -= 0xc;
|
|
else
|
|
maxblocksize -= 0x4;
|
|
|
|
eeprom = kzalloc(eeprom_size, GFP_KERNEL);
|
|
if (unlikely(!eeprom))
|
|
goto free;
|
|
|
|
while (eeprom_size) {
|
|
blocksize = min(eeprom_size, maxblocksize);
|
|
ret = p54_download_eeprom(priv, (void *) (eeprom + offset),
|
|
offset, blocksize);
|
|
if (unlikely(ret))
|
|
goto free;
|
|
|
|
offset += blocksize;
|
|
eeprom_size -= blocksize;
|
|
}
|
|
|
|
ret = p54_parse_eeprom(dev, eeprom, offset);
|
|
free:
|
|
kfree(eeprom);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(p54_read_eeprom);
|