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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/net/wireless/p54/eeprom.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/net/wireless/p54/eeprom.c')
-rw-r--r--drivers/net/wireless/p54/eeprom.c982
1 files changed, 0 insertions, 982 deletions
diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c
deleted file mode 100644
index 2fe713eda..000000000
--- a/drivers/net/wireless/p54/eeprom.c
+++ /dev/null
@@ -1,982 +0,0 @@
-/*
- * EEPROM parser code for mac80211 Prism54 drivers
- *
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
- * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- *
- * Based on:
- * - the islsm (softmac prism54) driver, which is:
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- * - stlc45xx driver
- * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/sort.h>
-#include <linux/slab.h>
-
-#include <net/mac80211.h>
-#include <linux/crc-ccitt.h>
-#include <linux/export.h>
-
-#include "p54.h"
-#include "eeprom.h"
-#include "lmac.h"
-
-static struct ieee80211_rate p54_bgrates[] = {
- { .bitrate = 10, .hw_value = 0, },
- { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
- { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
- { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
- { .bitrate = 60, .hw_value = 4, },
- { .bitrate = 90, .hw_value = 5, },
- { .bitrate = 120, .hw_value = 6, },
- { .bitrate = 180, .hw_value = 7, },
- { .bitrate = 240, .hw_value = 8, },
- { .bitrate = 360, .hw_value = 9, },
- { .bitrate = 480, .hw_value = 10, },
- { .bitrate = 540, .hw_value = 11, },
-};
-
-static struct ieee80211_rate p54_arates[] = {
- { .bitrate = 60, .hw_value = 4, },
- { .bitrate = 90, .hw_value = 5, },
- { .bitrate = 120, .hw_value = 6, },
- { .bitrate = 180, .hw_value = 7, },
- { .bitrate = 240, .hw_value = 8, },
- { .bitrate = 360, .hw_value = 9, },
- { .bitrate = 480, .hw_value = 10, },
- { .bitrate = 540, .hw_value = 11, },
-};
-
-static struct p54_rssi_db_entry p54_rssi_default = {
- /*
- * The defaults are taken from usb-logs of the
- * vendor driver. So, they should be safe to
- * use in case we can't get a match from the
- * rssi <-> dBm conversion database.
- */
- .mul = 130,
- .add = -398,
-};
-
-#define CHAN_HAS_CAL BIT(0)
-#define CHAN_HAS_LIMIT BIT(1)
-#define CHAN_HAS_CURVE BIT(2)
-#define CHAN_HAS_ALL (CHAN_HAS_CAL | CHAN_HAS_LIMIT | CHAN_HAS_CURVE)
-
-struct p54_channel_entry {
- u16 freq;
- u16 data;
- int index;
- int max_power;
- enum ieee80211_band band;
-};
-
-struct p54_channel_list {
- struct p54_channel_entry *channels;
- size_t entries;
- size_t max_entries;
- size_t band_channel_num[IEEE80211_NUM_BANDS];
-};
-
-static int p54_get_band_from_freq(u16 freq)
-{
- /* FIXME: sync these values with the 802.11 spec */
-
- if ((freq >= 2412) && (freq <= 2484))
- return IEEE80211_BAND_2GHZ;
-
- if ((freq >= 4920) && (freq <= 5825))
- return IEEE80211_BAND_5GHZ;
-
- return -1;
-}
-
-static int same_band(u16 freq, u16 freq2)
-{
- return p54_get_band_from_freq(freq) == p54_get_band_from_freq(freq2);
-}
-
-static int p54_compare_channels(const void *_a,
- const void *_b)
-{
- const struct p54_channel_entry *a = _a;
- const struct p54_channel_entry *b = _b;
-
- return a->freq - b->freq;
-}
-
-static int p54_compare_rssichan(const void *_a,
- const void *_b)
-{
- const struct p54_rssi_db_entry *a = _a;
- const struct p54_rssi_db_entry *b = _b;
-
- return a->freq - b->freq;
-}
-
-static int p54_fill_band_bitrates(struct ieee80211_hw *dev,
- struct ieee80211_supported_band *band_entry,
- enum ieee80211_band band)
-{
- /* TODO: generate rate array dynamically */
-
- switch (band) {
- case IEEE80211_BAND_2GHZ:
- band_entry->bitrates = p54_bgrates;
- band_entry->n_bitrates = ARRAY_SIZE(p54_bgrates);
- break;
- case IEEE80211_BAND_5GHZ:
- band_entry->bitrates = p54_arates;
- band_entry->n_bitrates = ARRAY_SIZE(p54_arates);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int p54_generate_band(struct ieee80211_hw *dev,
- struct p54_channel_list *list,
- unsigned int *chan_num,
- enum ieee80211_band band)
-{
- struct p54_common *priv = dev->priv;
- struct ieee80211_supported_band *tmp, *old;
- unsigned int i, j;
- int ret = -ENOMEM;
-
- if ((!list->entries) || (!list->band_channel_num[band]))
- return -EINVAL;
-
- tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- goto err_out;
-
- tmp->channels = kzalloc(sizeof(struct ieee80211_channel) *
- list->band_channel_num[band], GFP_KERNEL);
- if (!tmp->channels)
- goto err_out;
-
- ret = p54_fill_band_bitrates(dev, tmp, band);
- if (ret)
- goto err_out;
-
- for (i = 0, j = 0; (j < list->band_channel_num[band]) &&
- (i < list->entries); i++) {
- struct p54_channel_entry *chan = &list->channels[i];
- struct ieee80211_channel *dest = &tmp->channels[j];
-
- if (chan->band != band)
- continue;
-
- if (chan->data != CHAN_HAS_ALL) {
- wiphy_err(dev->wiphy, "%s%s%s is/are missing for "
- "channel:%d [%d MHz].\n",
- (chan->data & CHAN_HAS_CAL ? "" :
- " [iqauto calibration data]"),
- (chan->data & CHAN_HAS_LIMIT ? "" :
- " [output power limits]"),
- (chan->data & CHAN_HAS_CURVE ? "" :
- " [curve data]"),
- chan->index, chan->freq);
- continue;
- }
-
- dest->band = chan->band;
- dest->center_freq = chan->freq;
- dest->max_power = chan->max_power;
- priv->survey[*chan_num].channel = &tmp->channels[j];
- priv->survey[*chan_num].filled = SURVEY_INFO_NOISE_DBM |
- SURVEY_INFO_TIME |
- SURVEY_INFO_TIME_BUSY |
- SURVEY_INFO_TIME_TX;
- dest->hw_value = (*chan_num);
- j++;
- (*chan_num)++;
- }
-
- if (j == 0) {
- wiphy_err(dev->wiphy, "Disabling totally damaged %d GHz band\n",
- (band == IEEE80211_BAND_2GHZ) ? 2 : 5);
-
- ret = -ENODATA;
- goto err_out;
- }
-
- tmp->n_channels = j;
- old = priv->band_table[band];
- priv->band_table[band] = tmp;
- if (old) {
- kfree(old->channels);
- kfree(old);
- }
-
- return 0;
-
-err_out:
- if (tmp) {
- kfree(tmp->channels);
- kfree(tmp);
- }
-
- return ret;
-}
-
-static struct p54_channel_entry *p54_update_channel_param(struct p54_channel_list *list,
- u16 freq, u16 data)
-{
- int i;
- struct p54_channel_entry *entry = NULL;
-
- /*
- * usually all lists in the eeprom are mostly sorted.
- * so it's very likely that the entry we are looking for
- * is right at the end of the list
- */
- for (i = list->entries; i >= 0; i--) {
- if (freq == list->channels[i].freq) {
- entry = &list->channels[i];
- break;
- }
- }
-
- if ((i < 0) && (list->entries < list->max_entries)) {
- /* entry does not exist yet. Initialize a new one. */
- int band = p54_get_band_from_freq(freq);
-
- /*
- * filter out frequencies which don't belong into
- * any supported band.
- */
- if (band >= 0) {
- i = list->entries++;
- list->band_channel_num[band]++;
-
- entry = &list->channels[i];
- entry->freq = freq;
- entry->band = band;
- entry->index = ieee80211_frequency_to_channel(freq);
- entry->max_power = 0;
- entry->data = 0;
- }
- }
-
- if (entry)
- entry->data |= data;
-
- return entry;
-}
-
-static int p54_get_maxpower(struct p54_common *priv, void *data)
-{
- switch (priv->rxhw & PDR_SYNTH_FRONTEND_MASK) {
- case PDR_SYNTH_FRONTEND_LONGBOW: {
- struct pda_channel_output_limit_longbow *pda = data;
- int j;
- u16 rawpower = 0;
- pda = data;
- for (j = 0; j < ARRAY_SIZE(pda->point); j++) {
- struct pda_channel_output_limit_point_longbow *point =
- &pda->point[j];
- rawpower = max_t(u16,
- rawpower, le16_to_cpu(point->val_qpsk));
- rawpower = max_t(u16,
- rawpower, le16_to_cpu(point->val_bpsk));
- rawpower = max_t(u16,
- rawpower, le16_to_cpu(point->val_16qam));
- rawpower = max_t(u16,
- rawpower, le16_to_cpu(point->val_64qam));
- }
- /* longbow seems to use 1/16 dBm units */
- return rawpower / 16;
- }
-
- case PDR_SYNTH_FRONTEND_DUETTE3:
- case PDR_SYNTH_FRONTEND_DUETTE2:
- case PDR_SYNTH_FRONTEND_FRISBEE:
- case PDR_SYNTH_FRONTEND_XBOW: {
- struct pda_channel_output_limit *pda = data;
- u8 rawpower = 0;
- rawpower = max(rawpower, pda->val_qpsk);
- rawpower = max(rawpower, pda->val_bpsk);
- rawpower = max(rawpower, pda->val_16qam);
- rawpower = max(rawpower, pda->val_64qam);
- /* raw values are in 1/4 dBm units */
- return rawpower / 4;
- }
-
- default:
- return 20;
- }
-}
-
-static int p54_generate_channel_lists(struct ieee80211_hw *dev)
-{
- struct p54_common *priv = dev->priv;
- struct p54_channel_list *list;
- unsigned int i, j, k, max_channel_num;
- int ret = 0;
- u16 freq;
-
- if ((priv->iq_autocal_len != priv->curve_data->entries) ||
- (priv->iq_autocal_len != priv->output_limit->entries))
- wiphy_err(dev->wiphy,
- "Unsupported or damaged EEPROM detected. "
- "You may not be able to use all channels.\n");
-
- max_channel_num = max_t(unsigned int, priv->output_limit->entries,
- priv->iq_autocal_len);
- max_channel_num = max_t(unsigned int, max_channel_num,
- priv->curve_data->entries);
-
- list = kzalloc(sizeof(*list), GFP_KERNEL);
- if (!list) {
- ret = -ENOMEM;
- goto free;
- }
- priv->chan_num = max_channel_num;
- priv->survey = kzalloc(sizeof(struct survey_info) * max_channel_num,
- GFP_KERNEL);
- if (!priv->survey) {
- ret = -ENOMEM;
- goto free;
- }
-
- list->max_entries = max_channel_num;
- list->channels = kzalloc(sizeof(struct p54_channel_entry) *
- max_channel_num, GFP_KERNEL);
- if (!list->channels) {
- ret = -ENOMEM;
- goto free;
- }
-
- for (i = 0; i < max_channel_num; i++) {
- if (i < priv->iq_autocal_len) {
- freq = le16_to_cpu(priv->iq_autocal[i].freq);
- p54_update_channel_param(list, freq, CHAN_HAS_CAL);
- }
-
- if (i < priv->output_limit->entries) {
- struct p54_channel_entry *tmp;
-
- void *data = (void *) ((unsigned long) i *
- priv->output_limit->entry_size +
- priv->output_limit->offset +
- priv->output_limit->data);
-
- freq = le16_to_cpup((__le16 *) data);
- tmp = p54_update_channel_param(list, freq,
- CHAN_HAS_LIMIT);
- if (tmp) {
- tmp->max_power = p54_get_maxpower(priv, data);
- }
- }
-
- if (i < priv->curve_data->entries) {
- freq = le16_to_cpup((__le16 *) (i *
- priv->curve_data->entry_size +
- priv->curve_data->offset +
- priv->curve_data->data));
-
- p54_update_channel_param(list, freq, CHAN_HAS_CURVE);
- }
- }
-
- /* sort the channel list by frequency */
- sort(list->channels, list->entries, sizeof(struct p54_channel_entry),
- p54_compare_channels, NULL);
-
- k = 0;
- for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) {
- if (p54_generate_band(dev, list, &k, i) == 0)
- j++;
- }
- if (j == 0) {
- /* no useable band available. */
- ret = -EINVAL;
- }
-
-free:
- if (list) {
- kfree(list->channels);
- kfree(list);
- }
- if (ret) {
- kfree(priv->survey);
- priv->survey = NULL;
- }
-
- return ret;
-}
-
-static int p54_convert_rev0(struct ieee80211_hw *dev,
- struct pda_pa_curve_data *curve_data)
-{
- struct p54_common *priv = dev->priv;
- struct p54_pa_curve_data_sample *dst;
- struct pda_pa_curve_data_sample_rev0 *src;
- size_t cd_len = sizeof(*curve_data) +
- (curve_data->points_per_channel*sizeof(*dst) + 2) *
- curve_data->channels;
- unsigned int i, j;
- void *source, *target;
-
- priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len,
- 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++) {
- dst = target;
- src = source;
-
- dst->rf_power = src->rf_power;
- dst->pa_detector = src->pa_detector;
- dst->data_64qam = src->pcv;
- /* "invent" the points for the other modulations */
-#define SUB(x, y) (u8)(((x) - (y)) > (x) ? 0 : (x) - (y))
- dst->data_16qam = SUB(src->pcv, 12);
- dst->data_qpsk = SUB(dst->data_16qam, 12);
- dst->data_bpsk = SUB(dst->data_qpsk, 12);
- dst->data_barker = SUB(dst->data_bpsk, 14);
-#undef SUB
- target += sizeof(*dst);
- source += sizeof(*src);
- }
- }
-
- return 0;
-}
-
-static int p54_convert_rev1(struct ieee80211_hw *dev,
- struct pda_pa_curve_data *curve_data)
-{
- struct p54_common *priv = dev->priv;
- struct p54_pa_curve_data_sample *dst;
- struct pda_pa_curve_data_sample_rev1 *src;
- size_t cd_len = sizeof(*curve_data) +
- (curve_data->points_per_channel*sizeof(*dst) + 2) *
- curve_data->channels;
- unsigned int i, j;
- void *source, *target;
-
- priv->curve_data = 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 ||
- (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;
- }
-
- priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
-
- err = p54_generate_channel_lists(dev);
- if (err)
- goto err;
-
- 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");
- eth_random_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, 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);