linux/drivers/net/wireless/p54/eeprom.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

762 lines
20 KiB
C

/*
* 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/init.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/sort.h>
#include <linux/slab.h>
#include <net/mac80211.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, },
};
#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;
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 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->index - b->index;
}
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,
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++) {
if (list->channels[i].band != band)
continue;
if (list->channels[i].data != CHAN_HAS_ALL) {
printk(KERN_ERR "%s:%s%s%s is/are missing for "
"channel:%d [%d MHz].\n",
wiphy_name(dev->wiphy),
(list->channels[i].data & CHAN_HAS_CAL ? "" :
" [iqauto calibration data]"),
(list->channels[i].data & CHAN_HAS_LIMIT ? "" :
" [output power limits]"),
(list->channels[i].data & CHAN_HAS_CURVE ? "" :
" [curve data]"),
list->channels[i].index, list->channels[i].freq);
continue;
}
tmp->channels[j].band = list->channels[i].band;
tmp->channels[j].center_freq = list->channels[i].freq;
j++;
}
if (j == 0) {
printk(KERN_ERR "%s: Disabling totally damaged %s band.\n",
wiphy_name(dev->wiphy), (band == IEEE80211_BAND_2GHZ) ?
"2 GHz" : "5 GHz");
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 void p54_update_channel_param(struct p54_channel_list *list,
u16 freq, u16 data)
{
int band, i;
/*
* 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) {
list->channels[i].data |= data;
break;
}
}
if ((i < 0) && (list->entries < list->max_entries)) {
/* entry does not exist yet. Initialize a new one. */
band = p54_get_band_from_freq(freq);
/*
* filter out frequencies which don't belong into
* any supported band.
*/
if (band < 0)
return ;
i = list->entries++;
list->band_channel_num[band]++;
list->channels[i].freq = freq;
list->channels[i].data = data;
list->channels[i].band = band;
list->channels[i].index = ieee80211_frequency_to_channel(freq);
/* TODO: parse output_limit and fill max_power */
}
}
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, 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))
printk(KERN_ERR "%s: Unsupported or damaged EEPROM detected. "
"You may not be able to use all channels.\n",
wiphy_name(dev->wiphy));
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;
}
list->max_entries = max_channel_num;
list->channels = kzalloc(sizeof(struct p54_channel_entry) *
max_channel_num, GFP_KERNEL);
if (!list->channels)
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) {
freq = le16_to_cpup((__le16 *) (i *
priv->output_limit->entry_size +
priv->output_limit->offset +
priv->output_limit->data));
p54_update_channel_param(list, freq, CHAN_HAS_LIMIT);
}
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 list by the channel index */
sort(list->channels, list->entries, sizeof(struct p54_channel_entry),
p54_compare_channels, NULL);
for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) {
if (p54_generate_band(dev, list, i) == 0)
j++;
}
if (j == 0) {
/* no useable band available. */
ret = -EINVAL;
}
free:
if (list) {
kfree(list->channels);
kfree(list);
}
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 void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len,
u16 type)
{
struct p54_common *priv = dev->priv;
int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0;
int entry_size = sizeof(struct pda_rssi_cal_entry) + offset;
int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
int i;
if (len != (entry_size * num_entries)) {
printk(KERN_ERR "%s: unknown rssi calibration data packing "
" type:(%x) len:%d.\n",
wiphy_name(dev->wiphy), type, len);
print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE,
data, len);
printk(KERN_ERR "%s: please report this issue.\n",
wiphy_name(dev->wiphy));
return;
}
for (i = 0; i < num_entries; i++) {
struct pda_rssi_cal_entry *cal = data +
(offset + i * entry_size);
priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul);
priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add);
}
}
static void p54_parse_default_country(struct ieee80211_hw *dev,
void *data, int len)
{
struct pda_country *country;
if (len != sizeof(*country)) {
printk(KERN_ERR "%s: found possible invalid default country "
"eeprom entry. (entry size: %d)\n",
wiphy_name(dev->wiphy), len);
print_hex_dump_bytes("country:", DUMP_PREFIX_NONE,
data, len);
printk(KERN_ERR "%s: please report this issue.\n",
wiphy_name(dev->wiphy));
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) {
printk(KERN_ERR "%s: unknown output power db revision:%x\n",
wiphy_name(dev->wiphy), 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;
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:
printk(KERN_ERR "%s: unknown curve data "
"revision %d\n",
wiphy_name(dev->wiphy),
curve_data->cal_method_rev);
err = -ENODEV;
break;
}
if (err)
goto err;
}
break;
case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
if (!priv->iq_autocal) {
err = -ENOMEM;
goto err;
}
memcpy(priv->iq_autocal, entry->data, data_len);
priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
break;
case PDR_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:
p54_parse_rssical(dev, entry->data, data_len,
le16_to_cpu(entry->code));
break;
case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: {
__le16 *src = (void *) entry->data;
s16 *dst = (void *) &priv->rssical_db;
int i;
if (data_len != sizeof(priv->rssical_db)) {
err = -EINVAL;
goto err;
}
for (i = 0; i < sizeof(priv->rssical_db) /
sizeof(*src); 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:
/* make it overrun */
entry_len = len;
break;
default:
break;
}
entry = (void *)entry + (entry_len + 1)*2;
}
if (!synth || !priv->iq_autocal || !priv->output_limit ||
!priv->curve_data) {
printk(KERN_ERR "%s: not all required entries found in eeprom!\n",
wiphy_name(dev->wiphy));
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];
printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n",
wiphy_name(dev->wiphy));
random_ether_addr(perm_addr);
SET_IEEE80211_PERM_ADDR(dev, perm_addr);
}
printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
wiphy_name(dev->wiphy), 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);
priv->iq_autocal = NULL;
priv->output_limit = NULL;
priv->curve_data = NULL;
printk(KERN_ERR "%s: eeprom parse failed!\n",
wiphy_name(dev->wiphy));
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);