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zd1211rw: make use of new regulatory_hint()

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This cleans up zd1211rw's own regulatory work, and makes use of
the new cfg80211 regulatory_hint().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2008-09-09 23:19:49 -07:00 committed by John W. Linville
parent b2e1b30290
commit e83a1070a1
7 changed files with 102 additions and 203 deletions
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2
drivers/net/wireless/zd1211rw/Makefile
View File

@ -1,6 +1,6 @@
obj-$(CONFIG_ZD1211RW) += zd1211rw.o
zd1211rw-objs := zd_chip.o zd_ieee80211.o zd_mac.o \
zd1211rw-objs := zd_chip.o zd_mac.o \
zd_rf_al2230.o zd_rf_rf2959.o \
zd_rf_al7230b.o zd_rf_uw2453.o \
zd_rf.o zd_usb.o

1
drivers/net/wireless/zd1211rw/zd_chip.c
View File

@ -28,7 +28,6 @@
#include "zd_def.h"
#include "zd_chip.h"
#include "zd_ieee80211.h"
#include "zd_mac.h"
#include "zd_rf.h"

100
drivers/net/wireless/zd1211rw/zd_ieee80211.c
View File

@ -1,100 +0,0 @@
/* ZD1211 USB-WLAN driver for Linux
*
* Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
* Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* In the long term, we'll probably find a better way of handling regulatory
* requirements outside of the driver.
*/
#include <linux/kernel.h>
#include <net/mac80211.h>
#include "zd_ieee80211.h"
#include "zd_mac.h"
struct channel_range {
u8 regdomain;
u8 start;
u8 end; /* exclusive (channel must be less than end) */
};
static const struct channel_range channel_ranges[] = {
{ ZD_REGDOMAIN_FCC, 1, 12 },
{ ZD_REGDOMAIN_IC, 1, 12 },
{ ZD_REGDOMAIN_ETSI, 1, 14 },
{ ZD_REGDOMAIN_JAPAN, 1, 14 },
{ ZD_REGDOMAIN_SPAIN, 1, 14 },
{ ZD_REGDOMAIN_FRANCE, 1, 14 },
/* Japan originally only had channel 14 available (see CHNL_ID 0x40 in
* 802.11). However, in 2001 the range was extended to include channels
* 1-13. The ZyDAS devices still use the old region code but are
* designed to allow the extra channel access in Japan. */
{ ZD_REGDOMAIN_JAPAN_ADD, 1, 15 },
};
static const struct channel_range *zd_channel_range(u8 regdomain)
{
int i;
for (i = 0; i < ARRAY_SIZE(channel_ranges); i++) {
const struct channel_range *range = &channel_ranges[i];
if (range->regdomain == regdomain)
return range;
}
return NULL;
}
#define CHAN_TO_IDX(chan) ((chan) - 1)
static void unmask_bg_channels(struct ieee80211_hw *hw,
const struct channel_range *range,
struct ieee80211_supported_band *sband)
{
u8 channel;
for (channel = range->start; channel < range->end; channel++) {
struct ieee80211_channel *chan =
&sband->channels[CHAN_TO_IDX(channel)];
chan->flags = 0;
}
}
void zd_geo_init(struct ieee80211_hw *hw, u8 regdomain)
{
struct zd_mac *mac = zd_hw_mac(hw);
const struct channel_range *range;
dev_dbg(zd_mac_dev(mac), "regdomain %#02x\n", regdomain);
range = zd_channel_range(regdomain);
if (!range) {
/* The vendor driver overrides the regulatory domain and
* allowed channel registers and unconditionally restricts
* available channels to 1-11 everywhere. Match their
* questionable behaviour only for regdomains which we don't
* recognise. */
dev_warn(zd_mac_dev(mac), "Unrecognised regulatory domain: "
"%#02x. Defaulting to FCC.\n", regdomain);
range = zd_channel_range(ZD_REGDOMAIN_FCC);
}
unmask_bg_channels(hw, range, &mac->band);
}

95
drivers/net/wireless/zd1211rw/zd_ieee80211.h
View File

@ -1,95 +0,0 @@
/* ZD1211 USB-WLAN driver for Linux
*
* Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
* Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _ZD_IEEE80211_H
#define _ZD_IEEE80211_H
#include <net/mac80211.h>
/* Additional definitions from the standards.
*/
#define ZD_REGDOMAIN_FCC 0x10
#define ZD_REGDOMAIN_IC 0x20
#define ZD_REGDOMAIN_ETSI 0x30
#define ZD_REGDOMAIN_SPAIN 0x31
#define ZD_REGDOMAIN_FRANCE 0x32
#define ZD_REGDOMAIN_JAPAN_ADD 0x40
#define ZD_REGDOMAIN_JAPAN 0x41
enum {
MIN_CHANNEL24 = 1,
MAX_CHANNEL24 = 14,
};
void zd_geo_init(struct ieee80211_hw *hw, u8 regdomain);
#define ZD_PLCP_SERVICE_LENGTH_EXTENSION 0x80
struct ofdm_plcp_header {
u8 prefix[3];
__le16 service;
} __attribute__((packed));
static inline u8 zd_ofdm_plcp_header_rate(const struct ofdm_plcp_header *header)
{
return header->prefix[0] & 0xf;
}
/* The following defines give the encoding of the 4-bit rate field in the
* OFDM (802.11a/802.11g) PLCP header. Notify that these values are used to
* define the zd-rate values for OFDM.
*
* See the struct zd_ctrlset definition in zd_mac.h.
*/
#define ZD_OFDM_PLCP_RATE_6M 0xb
#define ZD_OFDM_PLCP_RATE_9M 0xf
#define ZD_OFDM_PLCP_RATE_12M 0xa
#define ZD_OFDM_PLCP_RATE_18M 0xe
#define ZD_OFDM_PLCP_RATE_24M 0x9
#define ZD_OFDM_PLCP_RATE_36M 0xd
#define ZD_OFDM_PLCP_RATE_48M 0x8
#define ZD_OFDM_PLCP_RATE_54M 0xc
struct cck_plcp_header {
u8 signal;
u8 service;
__le16 length;
__le16 crc16;
} __attribute__((packed));
static inline u8 zd_cck_plcp_header_signal(const struct cck_plcp_header *header)
{
return header->signal;
}
/* These defines give the encodings of the signal field in the 802.11b PLCP
* header. The signal field gives the bit rate of the following packet. Even
* if technically wrong we use CCK here also for the 1 MBit/s and 2 MBit/s
* rate to stay consistent with Zydas and our use of the term.
*
* Notify that these values are *not* used in the zd-rates.
*/
#define ZD_CCK_PLCP_SIGNAL_1M 0x0a
#define ZD_CCK_PLCP_SIGNAL_2M 0x14
#define ZD_CCK_PLCP_SIGNAL_5M5 0x37
#define ZD_CCK_PLCP_SIGNAL_11M 0x6e
#endif /* _ZD_IEEE80211_H */

40
drivers/net/wireless/zd1211rw/zd_mac.c
View File

@ -3,7 +3,7 @@
* Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
* Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2006-2007 Michael Wu <flamingice@sourmilk.net>
* Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
* Copyright (C) 2007-2008 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -29,9 +29,23 @@
#include "zd_def.h"
#include "zd_chip.h"
#include "zd_mac.h"
#include "zd_ieee80211.h"
#include "zd_rf.h"
struct zd_reg_alpha2_map {
u32 reg;
char alpha2[2];
};
static struct zd_reg_alpha2_map reg_alpha2_map[] = {
{ ZD_REGDOMAIN_FCC, "US" },
{ ZD_REGDOMAIN_IC, "CA" },
{ ZD_REGDOMAIN_ETSI, "DE" }, /* Generic ETSI, use most restrictive */
{ ZD_REGDOMAIN_JAPAN, "JP" },
{ ZD_REGDOMAIN_JAPAN_ADD, "JP" },
{ ZD_REGDOMAIN_SPAIN, "ES" },
{ ZD_REGDOMAIN_FRANCE, "FR" },
};
/* This table contains the hardware specific values for the modulation rates. */
static const struct ieee80211_rate zd_rates[] = {
{ .bitrate = 10,
@ -95,6 +109,21 @@ static void housekeeping_init(struct zd_mac *mac);
static void housekeeping_enable(struct zd_mac *mac);
static void housekeeping_disable(struct zd_mac *mac);
static int zd_reg2alpha2(u8 regdomain, char *alpha2)
{
unsigned int i;
struct zd_reg_alpha2_map *reg_map;
for (i = 0; i < ARRAY_SIZE(reg_alpha2_map); i++) {
reg_map = &reg_alpha2_map[i];
if (regdomain == reg_map->reg) {
alpha2[0] = reg_map->alpha2[0];
alpha2[1] = reg_map->alpha2[1];
return 0;
}
}
return 1;
}
int zd_mac_preinit_hw(struct ieee80211_hw *hw)
{
int r;
@ -115,6 +144,7 @@ int zd_mac_init_hw(struct ieee80211_hw *hw)
int r;
struct zd_mac *mac = zd_hw_mac(hw);
struct zd_chip *chip = &mac->chip;
char alpha2[2];
u8 default_regdomain;
r = zd_chip_enable_int(chip);
@ -139,7 +169,9 @@ int zd_mac_init_hw(struct ieee80211_hw *hw)
if (r)
goto disable_int;
zd_geo_init(hw, mac->regdomain);
r = zd_reg2alpha2(mac->regdomain, alpha2);
if (!r)
regulatory_hint(hw->wiphy, alpha2, NULL);
r = 0;
disable_int:
@ -753,7 +785,7 @@ static int zd_op_config_interface(struct ieee80211_hw *hw,
return 0;
}
void zd_process_intr(struct work_struct *work)
static void zd_process_intr(struct work_struct *work)
{
u16 int_status;
struct zd_mac *mac = container_of(work, struct zd_mac, process_intr);

65
drivers/net/wireless/zd1211rw/zd_mac.h
View File

@ -25,7 +25,6 @@
#include <net/mac80211.h>
#include "zd_chip.h"
#include "zd_ieee80211.h"
struct zd_ctrlset {
u8 modulation;
@ -187,6 +186,70 @@ struct zd_mac {
unsigned int pass_ctrl:1;
};
#define ZD_REGDOMAIN_FCC 0x10
#define ZD_REGDOMAIN_IC 0x20
#define ZD_REGDOMAIN_ETSI 0x30
#define ZD_REGDOMAIN_SPAIN 0x31
#define ZD_REGDOMAIN_FRANCE 0x32
#define ZD_REGDOMAIN_JAPAN_ADD 0x40
#define ZD_REGDOMAIN_JAPAN 0x41
enum {
MIN_CHANNEL24 = 1,
MAX_CHANNEL24 = 14,
};
#define ZD_PLCP_SERVICE_LENGTH_EXTENSION 0x80
struct ofdm_plcp_header {
u8 prefix[3];
__le16 service;
} __attribute__((packed));
static inline u8 zd_ofdm_plcp_header_rate(const struct ofdm_plcp_header *header)
{
return header->prefix[0] & 0xf;
}
/* The following defines give the encoding of the 4-bit rate field in the
* OFDM (802.11a/802.11g) PLCP header. Notify that these values are used to
* define the zd-rate values for OFDM.
*
* See the struct zd_ctrlset definition in zd_mac.h.
*/
#define ZD_OFDM_PLCP_RATE_6M 0xb
#define ZD_OFDM_PLCP_RATE_9M 0xf
#define ZD_OFDM_PLCP_RATE_12M 0xa
#define ZD_OFDM_PLCP_RATE_18M 0xe
#define ZD_OFDM_PLCP_RATE_24M 0x9
#define ZD_OFDM_PLCP_RATE_36M 0xd
#define ZD_OFDM_PLCP_RATE_48M 0x8
#define ZD_OFDM_PLCP_RATE_54M 0xc
struct cck_plcp_header {
u8 signal;
u8 service;
__le16 length;
__le16 crc16;
} __attribute__((packed));
static inline u8 zd_cck_plcp_header_signal(const struct cck_plcp_header *header)
{
return header->signal;
}
/* These defines give the encodings of the signal field in the 802.11b PLCP
* header. The signal field gives the bit rate of the following packet. Even
* if technically wrong we use CCK here also for the 1 MBit/s and 2 MBit/s
* rate to stay consistent with Zydas and our use of the term.
*
* Notify that these values are *not* used in the zd-rates.
*/
#define ZD_CCK_PLCP_SIGNAL_1M 0x0a
#define ZD_CCK_PLCP_SIGNAL_2M 0x14
#define ZD_CCK_PLCP_SIGNAL_5M5 0x37
#define ZD_CCK_PLCP_SIGNAL_11M 0x6e
static inline struct zd_mac *zd_hw_mac(struct ieee80211_hw *hw)
{
return hw->priv;

2
drivers/net/wireless/zd1211rw/zd_rf.c
View File

@ -23,7 +23,7 @@
#include "zd_def.h"
#include "zd_rf.h"
#include "zd_ieee80211.h"
#include "zd_mac.h"
#include "zd_chip.h"
static const char * const rfs[] = {