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linux-2.6/drivers/net/wireless/brcm80211/brcmsmac/pub.h

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/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _BRCM_PUB_H_
#define _BRCM_PUB_H_
#include <linux/bcma/bcma.h>
#include <brcmu_wifi.h>
#include "types.h"
#include "defs.h"
#define BRCMS_NUMRATES 16 /* max # of rates in a rateset */
/* phy types */
#define PHY_TYPE_A 0 /* Phy type A */
#define PHY_TYPE_G 2 /* Phy type G */
#define PHY_TYPE_N 4 /* Phy type N */
#define PHY_TYPE_LP 5 /* Phy type Low Power A/B/G */
#define PHY_TYPE_SSN 6 /* Phy type Single Stream N */
#define PHY_TYPE_LCN 8 /* Phy type Single Stream N */
#define PHY_TYPE_LCNXN 9 /* Phy type 2-stream N */
#define PHY_TYPE_HT 7 /* Phy type 3-Stream N */
/* bw */
#define BRCMS_10_MHZ 10 /* 10Mhz nphy channel bandwidth */
#define BRCMS_20_MHZ 20 /* 20Mhz nphy channel bandwidth */
#define BRCMS_40_MHZ 40 /* 40Mhz nphy channel bandwidth */
#define BRCMS_RSSI_MINVAL -200 /* Low value, e.g. for forcing roam */
#define BRCMS_RSSI_NO_SIGNAL -91 /* NDIS RSSI link quality cutoffs */
#define BRCMS_RSSI_VERY_LOW -80 /* Very low quality cutoffs */
#define BRCMS_RSSI_LOW -70 /* Low quality cutoffs */
#define BRCMS_RSSI_GOOD -68 /* Good quality cutoffs */
#define BRCMS_RSSI_VERY_GOOD -58 /* Very good quality cutoffs */
#define BRCMS_RSSI_EXCELLENT -57 /* Excellent quality cutoffs */
/* a large TX Power as an init value to factor out of min() calculations,
* keep low enough to fit in an s8, units are .25 dBm
*/
#define BRCMS_TXPWR_MAX (127) /* ~32 dBm = 1,500 mW */
/* rate related definitions */
#define BRCMS_RATE_FLAG 0x80 /* Flag to indicate it is a basic rate */
#define BRCMS_RATE_MASK 0x7f /* Rate value mask w/o basic rate flag */
/* legacy rx Antenna diversity for SISO rates */
#define ANT_RX_DIV_FORCE_0 0 /* Use antenna 0 */
#define ANT_RX_DIV_FORCE_1 1 /* Use antenna 1 */
#define ANT_RX_DIV_START_1 2 /* Choose starting with 1 */
#define ANT_RX_DIV_START_0 3 /* Choose starting with 0 */
#define ANT_RX_DIV_ENABLE 3 /* APHY bbConfig Enable RX Diversity */
/* default antdiv setting */
#define ANT_RX_DIV_DEF ANT_RX_DIV_START_0
/* legacy rx Antenna diversity for SISO rates */
/* Tx on antenna 0, "legacy term Main" */
#define ANT_TX_FORCE_0 0
/* Tx on antenna 1, "legacy term Aux" */
#define ANT_TX_FORCE_1 1
/* Tx on phy's last good Rx antenna */
#define ANT_TX_LAST_RX 3
/* driver's default tx antenna setting */
#define ANT_TX_DEF 3
/* Tx Chain values */
/* def bitmap of txchain */
#define TXCHAIN_DEF 0x1
/* default bitmap of tx chains for nphy */
#define TXCHAIN_DEF_NPHY 0x3
/* default bitmap of tx chains for nphy */
#define TXCHAIN_DEF_HTPHY 0x7
/* def bitmap of rxchain */
#define RXCHAIN_DEF 0x1
/* default bitmap of rx chains for nphy */
#define RXCHAIN_DEF_NPHY 0x3
/* default bitmap of rx chains for nphy */
#define RXCHAIN_DEF_HTPHY 0x7
/* no antenna switch */
#define ANTSWITCH_NONE 0
/* antenna switch on 4321CB2, 2of3 */
#define ANTSWITCH_TYPE_1 1
/* antenna switch on 4321MPCI, 2of3 */
#define ANTSWITCH_TYPE_2 2
/* antenna switch on 4322, 2of3 */
#define ANTSWITCH_TYPE_3 3
#define RXBUFSZ PKTBUFSZ
#define MAX_STREAMS_SUPPORTED 4 /* max number of streams supported */
struct brcm_rateset {
/* # rates in this set */
u32 count;
/* rates in 500kbps units w/hi bit set if basic */
u8 rates[WL_NUMRATES];
};
struct brcms_c_rateset {
uint count; /* number of rates in rates[] */
/* rates in 500kbps units w/hi bit set if basic */
u8 rates[BRCMS_NUMRATES];
u8 htphy_membership; /* HT PHY Membership */
u8 mcs[MCSSET_LEN]; /* supported mcs index bit map */
};
/* All the HT-specific default advertised capabilities (including AMPDU)
* should be grouped here at one place
*/
#define AMPDU_DEF_MPDU_DENSITY 6 /* default mpdu density (110 ==> 4us) */
/* wlc internal bss_info */
struct brcms_bss_info {
u8 BSSID[ETH_ALEN]; /* network BSSID */
u16 flags; /* flags for internal attributes */
u8 SSID_len; /* the length of SSID */
u8 SSID[32]; /* SSID string */
s16 RSSI; /* receive signal strength (in dBm) */
s16 SNR; /* receive signal SNR in dB */
u16 beacon_period; /* units are Kusec */
u16 chanspec; /* Channel num, bw, ctrl_sb and band */
struct brcms_c_rateset rateset; /* supported rates */
};
#define MAC80211_PROMISC_BCNS (1 << 0)
#define MAC80211_SCAN (1 << 1)
/*
* Public portion of common driver state structure.
* The wlc handle points at this.
*/
struct brcms_pub {
struct brcms_c_info *wlc;
struct ieee80211_hw *ieee_hw;
struct scb_ampdu *global_ampdu;
uint mac80211_state;
uint unit; /* device instance number */
uint corerev; /* core revision */
struct si_pub *sih; /* SI handle (cookie for siutils calls) */
bool up; /* interface up and running */
bool hw_off; /* HW is off */
bool hw_up; /* one time hw up/down */
bool _piomode; /* true if pio mode */
uint _nbands; /* # bands supported */
uint now; /* # elapsed seconds */
bool delayed_down; /* down delayed */
bool associated; /* true:part of [I]BSS, false: not */
/* (union of stas_associated, aps_associated) */
bool _ampdu; /* ampdu enabled or not */
u8 _n_enab; /* bitmap of 11N + HT support */
u8 cur_etheraddr[ETH_ALEN]; /* our local ethernet address */
int bcmerror; /* last bcm error */
u32 radio_disabled; /* bit vector for radio disabled reasons */
u16 boardrev; /* version # of particular board */
u8 sromrev; /* version # of the srom */
char srom_ccode[BRCM_CNTRY_BUF_SZ]; /* Country Code in SROM */
u32 boardflags; /* Board specific flags from srom */
u32 boardflags2; /* More board flags if sromrev >= 4 */
bool phy_11ncapable; /* the PHY/HW is capable of 802.11N */
struct wl_cnt *_cnt; /* low-level counters in driver */
struct dentry *dbgfs_dir;
};
enum wlc_par_id {
IOV_MPC = 1,
IOV_RTSTHRESH,
IOV_QTXPOWER,
IOV_BCN_LI_BCN /* Beacon listen interval in # of beacons */
};
/***********************************************
* Feature-related macros to optimize out code *
* *********************************************
*/
#define ENAB_1x1 0x01
#define ENAB_2x2 0x02
#define ENAB_3x3 0x04
#define ENAB_4x4 0x08
#define SUPPORT_11N (ENAB_1x1|ENAB_2x2)
#define SUPPORT_HT (ENAB_1x1|ENAB_2x2|ENAB_3x3)
/* WL11N Support */
#define AMPDU_AGG_HOST 1
/* network protection config */
#define BRCMS_PROT_G_SPEC 1 /* SPEC g protection */
#define BRCMS_PROT_G_OVR 2 /* SPEC g prot override */
#define BRCMS_PROT_G_USER 3 /* gmode specified by user */
#define BRCMS_PROT_OVERLAP 4 /* overlap */
#define BRCMS_PROT_N_USER 10 /* nmode specified by user */
#define BRCMS_PROT_N_CFG 11 /* n protection */
#define BRCMS_PROT_N_CFG_OVR 12 /* n protection override */
#define BRCMS_PROT_N_NONGF 13 /* non-GF protection */
#define BRCMS_PROT_N_NONGF_OVR 14 /* non-GF protection override */
#define BRCMS_PROT_N_PAM_OVR 15 /* n preamble override */
#define BRCMS_PROT_N_OBSS 16 /* non-HT OBSS present */
/*
* 54g modes (basic bits may still be overridden)
*
* GMODE_LEGACY_B
* Rateset: 1b, 2b, 5.5, 11
* Preamble: Long
* Shortslot: Off
* GMODE_AUTO
* Rateset: 1b, 2b, 5.5b, 11b, 18, 24, 36, 54
* Extended Rateset: 6, 9, 12, 48
* Preamble: Long
* Shortslot: Auto
* GMODE_ONLY
* Rateset: 1b, 2b, 5.5b, 11b, 18, 24b, 36, 54
* Extended Rateset: 6b, 9, 12b, 48
* Preamble: Short required
* Shortslot: Auto
* GMODE_B_DEFERRED
* Rateset: 1b, 2b, 5.5b, 11b, 18, 24, 36, 54
* Extended Rateset: 6, 9, 12, 48
* Preamble: Long
* Shortslot: On
* GMODE_PERFORMANCE
* Rateset: 1b, 2b, 5.5b, 6b, 9, 11b, 12b, 18, 24b, 36, 48, 54
* Preamble: Short required
* Shortslot: On and required
* GMODE_LRS
* Rateset: 1b, 2b, 5.5b, 11b
* Extended Rateset: 6, 9, 12, 18, 24, 36, 48, 54
* Preamble: Long
* Shortslot: Auto
*/
#define GMODE_LEGACY_B 0
#define GMODE_AUTO 1
#define GMODE_ONLY 2
#define GMODE_B_DEFERRED 3
#define GMODE_PERFORMANCE 4
#define GMODE_LRS 5
#define GMODE_MAX 6
/* MCS values greater than this enable multiple streams */
#define HIGHEST_SINGLE_STREAM_MCS 7
#define MAXBANDS 2 /* Maximum #of bands */
/* max number of antenna configurations */
#define ANT_SELCFG_MAX 4
struct brcms_antselcfg {
u8 ant_config[ANT_SELCFG_MAX]; /* antenna configuration */
u8 num_antcfg; /* number of available antenna configurations */
};
/* common functions for every port */
extern struct brcms_c_info *
brcms_c_attach(struct brcms_info *wl, struct bcma_device *core, uint unit,
bool piomode, uint *perr);
extern uint brcms_c_detach(struct brcms_c_info *wlc);
extern int brcms_c_up(struct brcms_c_info *wlc);
extern uint brcms_c_down(struct brcms_c_info *wlc);
extern bool brcms_c_chipmatch(struct bcma_device *core);
extern void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx);
extern void brcms_c_reset(struct brcms_c_info *wlc);
extern void brcms_c_intrson(struct brcms_c_info *wlc);
extern u32 brcms_c_intrsoff(struct brcms_c_info *wlc);
extern void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask);
extern bool brcms_c_intrsupd(struct brcms_c_info *wlc);
extern bool brcms_c_isr(struct brcms_c_info *wlc);
extern bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded);
extern bool brcms_c_sendpkt_mac80211(struct brcms_c_info *wlc,
struct sk_buff *sdu,
struct ieee80211_hw *hw);
extern bool brcms_c_aggregatable(struct brcms_c_info *wlc, u8 tid);
extern void brcms_c_protection_upd(struct brcms_c_info *wlc, uint idx,
int val);
extern int brcms_c_get_header_len(void);
extern void brcms_c_set_addrmatch(struct brcms_c_info *wlc,
int match_reg_offset,
const u8 *addr);
extern void brcms_c_wme_setparams(struct brcms_c_info *wlc, u16 aci,
const struct ieee80211_tx_queue_params *arg,
bool suspend);
extern struct brcms_pub *brcms_c_pub(struct brcms_c_info *wlc);
extern void brcms_c_ampdu_flush(struct brcms_c_info *wlc,
struct ieee80211_sta *sta, u16 tid);
extern void brcms_c_ampdu_tx_operational(struct brcms_c_info *wlc, u8 tid,
u8 ba_wsize, uint max_rx_ampdu_bytes);
extern int brcms_c_module_register(struct brcms_pub *pub,
const char *name, struct brcms_info *hdl,
int (*down_fn)(void *handle));
extern int brcms_c_module_unregister(struct brcms_pub *pub, const char *name,
struct brcms_info *hdl);
extern void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc);
extern void brcms_c_enable_mac(struct brcms_c_info *wlc);
extern void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state);
extern void brcms_c_scan_start(struct brcms_c_info *wlc);
extern void brcms_c_scan_stop(struct brcms_c_info *wlc);
extern int brcms_c_get_curband(struct brcms_c_info *wlc);
extern int brcms_c_set_channel(struct brcms_c_info *wlc, u16 channel);
extern int brcms_c_set_rate_limit(struct brcms_c_info *wlc, u16 srl, u16 lrl);
extern void brcms_c_get_current_rateset(struct brcms_c_info *wlc,
struct brcm_rateset *currs);
extern int brcms_c_set_rateset(struct brcms_c_info *wlc,
struct brcm_rateset *rs);
extern int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period);
extern u16 brcms_c_get_phy_type(struct brcms_c_info *wlc, int phyidx);
extern void brcms_c_set_shortslot_override(struct brcms_c_info *wlc,
s8 sslot_override);
extern void brcms_c_set_beacon_listen_interval(struct brcms_c_info *wlc,
u8 interval);
extern int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr);
extern int brcms_c_get_tx_power(struct brcms_c_info *wlc);
extern bool brcms_c_check_radio_disabled(struct brcms_c_info *wlc);
extern void brcms_c_mute(struct brcms_c_info *wlc, bool on);
brcmsmac: rework of mac80211 .flush() callback operation This patch addresses a long standing issue of the driver with the mac80211 .flush() callback. Since implementing the .flush() callback a number of issues have been fixed, but a WARN_ON_ONCE() was still triggered because the timeout on the flush could still occur. This patch changes the awkward design using msleep() into one using a waitqueue. The waiting flush() context will kick the transmit dma when it is idle and the timeout used waiting for the event is set to 500 ms. Worst case there can be 64 frames outstanding for transmit in the driver. At a rate of 1Mbps that would take 1.5 seconds assuming MTU is 1500 bytes and ignoring retries. The WARN_ON_ONCE() is also removed as this was put in to indicate the flush timeout as a reason for the driver to stall. That was not happening since fixing endless AMPDU retries with following upstream commit: commit 85091fc0a75653e239dc8379658515e577544927 Author: Arend van Spriel <arend@broadcom.com> Date: Thu Feb 23 18:38:22 2012 +0100 brcm80211: smac: fix endless retry of A-MPDU transmissions bugzilla: 42840 <https://bugzilla.kernel.org/show_bug.cgi?id=42840> bugzilla@redhat: <https://bugzilla.redhat.com/show_bug.cgi?id=799168> bugzilla@redhat: <https://bugzilla.redhat.com/show_bug.cgi?id=787649> Cc: Jonathan Nieder <jrnieder@gmail.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Camaleón <noelamac@gmail.com> Cc: Milan Bouchet-Valat <nalimilan@club-internet.fr> Cc: Seth Forshee <seth.forshee@canonical.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Piotr Haber <phaber@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-02 13:36:50 +00:00
extern bool brcms_c_tx_flush_completed(struct brcms_c_info *wlc);
#endif /* _BRCM_PUB_H_ */