#ifndef B43legacy_H_
#define B43legacy_H_
#include <linux/hw_random.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/stringify.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
#include <asm/atomic.h>
#include <linux/io.h>
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_driver_chipcommon.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include "debugfs.h"
#include "leds.h"
#include "phy.h"
#define B43legacy_IRQWAIT_MAX_RETRIES 100
#define B43legacy_RX_MAX_SSI 60 /* best guess at max ssi */
/* MMIO offsets */
#define B43legacy_MMIO_DMA0_REASON 0x20
#define B43legacy_MMIO_DMA0_IRQ_MASK 0x24
#define B43legacy_MMIO_DMA1_REASON 0x28
#define B43legacy_MMIO_DMA1_IRQ_MASK 0x2C
#define B43legacy_MMIO_DMA2_REASON 0x30
#define B43legacy_MMIO_DMA2_IRQ_MASK 0x34
#define B43legacy_MMIO_DMA3_REASON 0x38
#define B43legacy_MMIO_DMA3_IRQ_MASK 0x3C
#define B43legacy_MMIO_DMA4_REASON 0x40
#define B43legacy_MMIO_DMA4_IRQ_MASK 0x44
#define B43legacy_MMIO_DMA5_REASON 0x48
#define B43legacy_MMIO_DMA5_IRQ_MASK 0x4C
#define B43legacy_MMIO_MACCTL 0x120
#define B43legacy_MMIO_STATUS_BITFIELD 0x120
#define B43legacy_MMIO_STATUS2_BITFIELD 0x124
#define B43legacy_MMIO_GEN_IRQ_REASON 0x128
#define B43legacy_MMIO_GEN_IRQ_MASK 0x12C
#define B43legacy_MMIO_RAM_CONTROL 0x130
#define B43legacy_MMIO_RAM_DATA 0x134
#define B43legacy_MMIO_PS_STATUS 0x140
#define B43legacy_MMIO_RADIO_HWENABLED_HI 0x158
#define B43legacy_MMIO_SHM_CONTROL 0x160
#define B43legacy_MMIO_SHM_DATA 0x164
#define B43legacy_MMIO_SHM_DATA_UNALIGNED 0x166
#define B43legacy_MMIO_XMITSTAT_0 0x170
#define B43legacy_MMIO_XMITSTAT_1 0x174
#define B43legacy_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
#define B43legacy_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */
/* 32-bit DMA */
#define B43legacy_MMIO_DMA32_BASE0 0x200
#define B43legacy_MMIO_DMA32_BASE1 0x220
#define B43legacy_MMIO_DMA32_BASE2 0x240
#define B43legacy_MMIO_DMA32_BASE3 0x260
#define B43legacy_MMIO_DMA32_BASE4 0x280
#define B43legacy_MMIO_DMA32_BASE5 0x2A0
/* 64-bit DMA */
#define B43legacy_MMIO_DMA64_BASE0 0x200
#define B43legacy_MMIO_DMA64_BASE1 0x240
#define B43legacy_MMIO_DMA64_BASE2 0x280
#define B43legacy_MMIO_DMA64_BASE3 0x2C0
#define B43legacy_MMIO_DMA64_BASE4 0x300
#define B43legacy_MMIO_DMA64_BASE5 0x340
/* PIO */
#define B43legacy_MMIO_PIO1_BASE 0x300
#define B43legacy_MMIO_PIO2_BASE 0x310
#define B43legacy_MMIO_PIO3_BASE 0x320
#define B43legacy_MMIO_PIO4_BASE 0x330
#define B43legacy_MMIO_PHY_VER 0x3E0
#define B43legacy_MMIO_PHY_RADIO 0x3E2
#define B43legacy_MMIO_PHY0 0x3E6
#define B43legacy_MMIO_ANTENNA 0x3E8
#define B43legacy_MMIO_CHANNEL 0x3F0
#define B43legacy_MMIO_CHANNEL_EXT 0x3F4
#define B43legacy_MMIO_RADIO_CONTROL 0x3F6
#define B43legacy_MMIO_RADIO_DATA_HIGH 0x3F8
#define B43legacy_MMIO_RADIO_DATA_LOW 0x3FA
#define B43legacy_MMIO_PHY_CONTROL 0x3FC
#define B43legacy_MMIO_PHY_DATA 0x3FE
#define B43legacy_MMIO_MACFILTER_CONTROL 0x420
#define B43legacy_MMIO_MACFILTER_DATA 0x422
#define B43legacy_MMIO_RCMTA_COUNT 0x43C /* Receive Match Transmitter Addr */
#define B43legacy_MMIO_RADIO_HWENABLED_LO 0x49A
#define B43legacy_MMIO_GPIO_CONTROL 0x49C
#define B43legacy_MMIO_GPIO_MASK 0x49E
#define B43legacy_MMIO_TSF_0 0x632 /* core rev < 3 only */
#define B43legacy_MMIO_TSF_1 0x634 /* core rev < 3 only */
#define B43legacy_MMIO_TSF_2 0x636 /* core rev < 3 only */
#define B43legacy_MMIO_TSF_3 0x638 /* core rev < 3 only */
#define B43legacy_MMIO_RNG 0x65A
#define B43legacy_MMIO_POWERUP_DELAY 0x6A8
/* SPROM boardflags_lo values */
#define B43legacy_BFL_PACTRL 0x0002
#define B43legacy_BFL_RSSI 0x0008
#define B43legacy_BFL_EXTLNA 0x1000
/* GPIO register offset, in both ChipCommon and PCI core. */
#define B43legacy_GPIO_CONTROL 0x6c
/* SHM Routing */
#define B43legacy_SHM_SHARED 0x0001
#define B43legacy_SHM_WIRELESS 0x0002
#define B43legacy_SHM_HW 0x0004
#define B43legacy_SHM_UCODE 0x0300
/* SHM Routing modifiers */
#define B43legacy_SHM_AUTOINC_R 0x0200 /* Read Auto-increment */
#define B43legacy_SHM_AUTOINC_W 0x0100 /* Write Auto-increment */
#define B43legacy_SHM_AUTOINC_RW (B43legacy_SHM_AUTOINC_R | \
B43legacy_SHM_AUTOINC_W)
/* Misc SHM_SHARED offsets */
#define B43legacy_SHM_SH_WLCOREREV 0x0016 /* 802.11 core revision */
#define B43legacy_SHM_SH_HOSTFLO 0x005E /* Hostflags ucode opts (low) */
#define B43legacy_SHM_SH_HOSTFHI 0x0060 /* Hostflags ucode opts (high) */
/* SHM_SHARED crypto engine */
#define B43legacy_SHM_SH_KEYIDXBLOCK 0x05D4 /* Key index/algorithm block */
/* SHM_SHARED beacon variables */
#define B43legacy_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word */
/* SHM_SHARED ACK/CTS control */
#define B43legacy_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word */
/* SHM_SHARED probe response variables */
#define B43legacy_SHM_SH_PRPHYCTL 0x0188 /* Probe Resp PHY TX control */
#define B43legacy_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */
/* SHM_SHARED rate tables */
/* SHM_SHARED microcode soft registers */
#define B43legacy_SHM_SH_UCODEREV 0x0000 /* Microcode revision */
#define B43legacy_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */
#define B43legacy_SHM_SH_UCODEDATE 0x0004 /* Microcode date */
#define B43legacy_SHM_SH_UCODETIME 0x0006 /* Microcode time */
#define B43legacy_UCODEFLAGS_OFFSET 0x005E
/* Hardware Radio Enable masks */
#define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
#define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
/* HostFlags. See b43legacy_hf_read/write() */
#define B43legacy_HF_SYMW 0x00000002 /* G-PHY SYM workaround */
#define B43legacy_HF_GDCW 0x00000020 /* G-PHY DV cancel filter */
#define B43legacy_HF_OFDMPABOOST 0x00000040 /* Enable PA boost OFDM */
#define B43legacy_HF_EDCF 0x00000100 /* on if WME/MAC suspended */
/* MacFilter offsets. */
#define B43legacy_MACFILTER_SELF 0x0000
#define B43legacy_MACFILTER_BSSID 0x0003
#define B43legacy_MACFILTER_MAC 0x0010
/* PHYVersioning */
#define B43legacy_PHYTYPE_B 0x01
#define B43legacy_PHYTYPE_G 0x02
/* PHYRegisters */
#define B43legacy_PHY_G_LO_CONTROL 0x0810
#define B43legacy_PHY_ILT_G_CTRL 0x0472
#define B43legacy_PHY_ILT_G_DATA1 0x0473
#define B43legacy_PHY_ILT_G_DATA2 0x0474
#define B43legacy_PHY_G_PCTL 0x0029
#define B43legacy_PHY_RADIO_BITFIELD 0x0401
#define B43legacy_PHY_G_CRS 0x0429
#define B43legacy_PHY_NRSSILT_CTRL 0x0803
#define B43legacy_PHY_NRSSILT_DATA 0x0804
/* RadioRegisters */
#define B43legacy_RADIOCTL_ID 0x01
/* MAC Control bitfield */
#define B43legacy_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */
#define B43legacy_MACCTL_INFRA 0x00020000 /* Infrastructure mode */
#define B43legacy_MACCTL_AP 0x00040000 /* AccessPoint mode */
#define B43legacy_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */
#define B43legacy_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep bad PLCP frames */
#define B43legacy_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */
#define B43legacy_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */
#define B43legacy_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */
#define B43legacy_MACCTL_GMODE 0x80000000 /* G Mode */
/* StatusBitField */
#define B43legacy_SBF_MAC_ENABLED 0x00000001
#define B43legacy_SBF_CORE_READY 0x00000004
#define B43legacy_SBF_400 0x00000400 /*FIXME: fix name*/
#define B43legacy_SBF_XFER_REG_BYTESWAP 0x00010000
#define B43legacy_SBF_MODE_NOTADHOC 0x00020000
#define B43legacy_SBF_MODE_AP 0x00040000
#define B43legacy_SBF_RADIOREG_LOCK 0x00080000
#define B43legacy_SBF_MODE_MONITOR 0x00400000
#define B43legacy_SBF_MODE_PROMISC 0x01000000
#define B43legacy_SBF_PS1 0x02000000
#define B43legacy_SBF_PS2 0x04000000
#define B43legacy_SBF_NO_SSID_BCAST 0x08000000
#define B43legacy_SBF_TIME_UPDATE 0x10000000
/* 802.11 core specific TM State Low flags */
#define B43legacy_TMSLOW_GMODE 0x20000000 /* G Mode Enable */
#define B43legacy_TMSLOW_PLLREFSEL 0x00200000 /* PLL Freq Ref Select */
#define B43legacy_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Ctrl Enbl */
#define B43legacy_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */
#define B43legacy_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */
/* 802.11 core specific TM State High flags */
#define B43legacy_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available */
#define B43legacy_TMSHIGH_GPHY 0x00010000 /* G-PHY avail (rev >= 5) */
#define B43legacy_UCODEFLAG_AUTODIV 0x0001
/* Generic-Interrupt reasons. */
#define B43legacy_IRQ_MAC_SUSPENDED 0x00000001
#define B43legacy_IRQ_BEACON 0x00000002
#define B43legacy_IRQ_TBTT_INDI 0x00000004 /* Target Beacon Transmit Time */
#define B43legacy_IRQ_BEACON_TX_OK 0x00000008
#define B43legacy_IRQ_BEACON_CANCEL 0x00000010
#define B43legacy_IRQ_ATIM_END 0x00000020
#define B43legacy_IRQ_PMQ 0x00000040
#define B43legacy_IRQ_PIO_WORKAROUND 0x00000100
#define B43legacy_IRQ_MAC_TXERR 0x00000200
#define B43legacy_IRQ_PHY_TXERR 0x00000800
#define B43legacy_IRQ_PMEVENT 0x00001000
#define B43legacy_IRQ_TIMER0 0x00002000
#define B43legacy_IRQ_TIMER1 0x00004000
#define B43legacy_IRQ_DMA 0x00008000
#define B43legacy_IRQ_TXFIFO_FLUSH_OK 0x00010000
#define B43legacy_IRQ_CCA_MEASURE_OK 0x00020000
#define B43legacy_IRQ_NOISESAMPLE_OK 0x00040000
#define B43legacy_IRQ_UCODE_DEBUG 0x08000000
#define B43legacy_IRQ_RFKILL 0x10000000
#define B43legacy_IRQ_TX_OK 0x20000000
#define B43legacy_IRQ_PHY_G_CHANGED 0x40000000
#define B43legacy_IRQ_TIMEOUT 0x80000000
#define B43legacy_IRQ_ALL 0xFFFFFFFF
#define B43legacy_IRQ_MASKTEMPLATE (B43legacy_IRQ_MAC_SUSPENDED | \
B43legacy_IRQ_BEACON | \
B43legacy_IRQ_TBTT_INDI | \
B43legacy_IRQ_ATIM_END | \
B43legacy_IRQ_PMQ | \
B43legacy_IRQ_MAC_TXERR | \
B43legacy_IRQ_PHY_TXERR | \
B43legacy_IRQ_DMA | \
B43legacy_IRQ_TXFIFO_FLUSH_OK | \
B43legacy_IRQ_NOISESAMPLE_OK | \
B43legacy_IRQ_UCODE_DEBUG | \
B43legacy_IRQ_RFKILL | \
B43legacy_IRQ_TX_OK)
/* Device specific rate values.
* The actual values defined here are (rate_in_mbps * 2).
* Some code depends on this. Don't change it. */
#define B43legacy_CCK_RATE_1MB 2
#define B43legacy_CCK_RATE_2MB 4
#define B43legacy_CCK_RATE_5MB 11
#define B43legacy_CCK_RATE_11MB 22
#define B43legacy_OFDM_RATE_6MB 12
#define B43legacy_OFDM_RATE_9MB 18
#define B43legacy_OFDM_RATE_12MB 24
#define B43legacy_OFDM_RATE_18MB 36
#define B43legacy_OFDM_RATE_24MB 48
#define B43legacy_OFDM_RATE_36MB 72
#define B43legacy_OFDM_RATE_48MB 96
#define B43legacy_OFDM_RATE_54MB 108
/* Convert a b43legacy rate value to a rate in 100kbps */
#define B43legacy_RATE_TO_100KBPS(rate) (((rate) * 10) / 2)
#define B43legacy_DEFAULT_SHORT_RETRY_LIMIT 7
#define B43legacy_DEFAULT_LONG_RETRY_LIMIT 4
/* Max size of a security key */
#define B43legacy_SEC_KEYSIZE 16
/* Security algorithms. */
enum {
B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
B43legacy_SEC_ALGO_WEP40,
B43legacy_SEC_ALGO_TKIP,
B43legacy_SEC_ALGO_AES,
B43legacy_SEC_ALGO_WEP104,
B43legacy_SEC_ALGO_AES_LEGACY,
};
/* Core Information Registers */
#define B43legacy_CIR_BASE 0xf00
#define B43legacy_CIR_SBTPSFLAG (B43legacy_CIR_BASE + 0x18)
#define B43legacy_CIR_SBIMSTATE (B43legacy_CIR_BASE + 0x90)
#define B43legacy_CIR_SBINTVEC (B43legacy_CIR_BASE + 0x94)
#define B43legacy_CIR_SBTMSTATELOW (B43legacy_CIR_BASE + 0x98)
#define B43legacy_CIR_SBTMSTATEHIGH (B43legacy_CIR_BASE + 0x9c)
#define B43legacy_CIR_SBIMCONFIGLOW (B43legacy_CIR_BASE + 0xa8)
#define B43legacy_CIR_SB_ID_HI (B43legacy_CIR_BASE + 0xfc)
/* sbtmstatehigh state flags */
#define B43legacy_SBTMSTATEHIGH_SERROR 0x00000001
#define B43legacy_SBTMSTATEHIGH_BUSY 0x00000004
#define B43legacy_SBTMSTATEHIGH_TIMEOUT 0x00000020
#define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL 0x00010000
#define B43legacy_SBTMSTATEHIGH_COREFLAGS 0x1FFF0000
#define B43legacy_SBTMSTATEHIGH_DMA64BIT 0x10000000
#define B43legacy_SBTMSTATEHIGH_GATEDCLK 0x20000000
#define B43legacy_SBTMSTATEHIGH_BISTFAILED 0x40000000
#define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE 0x80000000
/* sbimstate flags */
#define B43legacy_SBIMSTATE_IB_ERROR 0x20000
#define B43legacy_SBIMSTATE_TIMEOUT 0x40000
#define PFX KBUILD_MODNAME ": "
#ifdef assert
# undef assert
#endif
#ifdef CONFIG_B43LEGACY_DEBUG
# define B43legacy_WARN_ON(expr) \
do { \
if (unlikely((expr))) { \
printk(KERN_INFO PFX "Test (%s) failed at:" \
" %s:%d:%s()\n", \
#expr, __FILE__, \
__LINE__, __FUNCTION__); \
} \
} while (0)
# define B43legacy_BUG_ON(expr) \
do { \
if (unlikely((expr))) { \
printk(KERN_INFO PFX "Test (%s) failed\n", \
#expr); \
BUG_ON(expr); \
} \
} while (0)
# define B43legacy_DEBUG 1
#else
# define B43legacy_WARN_ON(x) do { /* nothing */ } while (0)
# define B43legacy_BUG_ON(x) do { /* nothing */ } while (0)
# define B43legacy_DEBUG 0
#endif
struct net_device;
struct pci_dev;
struct b43legacy_dmaring;
struct b43legacy_pioqueue;
/* The firmware file header */
#define B43legacy_FW_TYPE_UCODE 'u'
#define B43legacy_FW_TYPE_PCM 'p'
#define B43legacy_FW_TYPE_IV 'i'
struct b43legacy_fw_header {
/* File type */
u8 type;
/* File format version */
u8 ver;
u8 __padding[2];
/* Size of the data. For ucode and PCM this is in bytes.
* For IV this is number-of-ivs. */
__be32 size;
} __attribute__((__packed__));
/* Initial Value file format */
#define B43legacy_IV_OFFSET_MASK 0x7FFF
#define B43legacy_IV_32BIT 0x8000
struct b43legacy_iv {
__be16 offset_size;
union {
__be16 d16;
__be32 d32;
} data __attribute__((__packed__));
} __attribute__((__packed__));
#define B43legacy_PHYMODE(phytype) (1 << (phytype))
#define B43legacy_PHYMODE_B B43legacy_PHYMODE \
((B43legacy_PHYTYPE_B))
#define B43legacy_PHYMODE_G B43legacy_PHYMODE \
((B43legacy_PHYTYPE_G))
/* Value pair to measure the LocalOscillator. */
struct b43legacy_lopair {
s8 low;
s8 high;
u8 used:1;
};
#define B43legacy_LO_COUNT (14*4)
struct b43legacy_phy {
/* Possible PHYMODEs on this PHY */
u8 possible_phymodes;
/* GMODE bit enabled in MACCTL? */
bool gmode;
/* Possible ieee80211 subsystem hwmodes for this PHY.
* Which mode is selected, depends on thr GMODE enabled bit */
#define B43legacy_MAX_PHYHWMODES 2
struct ieee80211_hw_mode hwmodes[B43legacy_MAX_PHYHWMODES];
/* Analog Type */
u8 analog;
/* B43legacy_PHYTYPE_ */
u8 type;
/* PHY revision number. */
u8 rev;
u16 antenna_diversity;
u16 savedpctlreg;
/* Radio versioning */
u16 radio_manuf; /* Radio manufacturer */
u16 radio_ver; /* Radio version */
u8 calibrated:1;
u8 radio_rev; /* Radio revision */
bool locked; /* Only used in b43legacy_phy_{un}lock() */
bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */
/* ACI (adjacent channel interference) flags. */
bool aci_enable;
bool aci_wlan_automatic;
bool aci_hw_rssi;
/* Radio switched on/off */
bool radio_on;
struct {
/* Values saved when turning the radio off.
* They are needed when turning it on again. */
bool valid;
u16 rfover;
u16 rfoverval;
} radio_off_context;
u16 minlowsig[2];
u16 minlowsigpos[2];
/* LO Measurement Data.
* Use b43legacy_get_lopair() to get a value.
*/
struct b43legacy_lopair *_lo_pairs;
/* TSSI to dBm table in use */
const s8 *tssi2dbm;
/* idle TSSI value */
s8 idle_tssi;
/* Target idle TSSI */
int tgt_idle_tssi;
/* Current idle TSSI */
int cur_idle_tssi;
/* LocalOscillator control values. */
struct b43legacy_txpower_lo_control *lo_control;
/* Values from b43legacy_calc_loopback_gain() */
s16 max_lb_gain; /* Maximum Loopback gain in hdB */
s16 trsw_rx_gain; /* TRSW RX gain in hdB */
s16 lna_lod_gain; /* LNA lod */
s16 lna_gain; /* LNA */
s16 pga_gain; /* PGA */
/* PHY lock for core.rev < 3
* This lock is only used by b43legacy_phy_{un}lock()
*/
spinlock_t lock;
/* Desired TX power level (in dBm). This is set by the user and
* adjusted in b43legacy_phy_xmitpower(). */
u8 power_level;
/* Values from b43legacy_calc_loopback_gain() */
u16 loopback_gain[2];
/* TX Power control values. */
/* B/G PHY */
struct {
/* Current Radio Attenuation for TXpower recalculation. */
u16 rfatt;
/* Current Baseband Attenuation for TXpower recalculation. */
u16 bbatt;
/* Current TXpower control value for TXpower recalculation. */
u16 txctl1;
u16 txctl2;
};
/* A PHY */
struct {
u16 txpwr_offset;
};
#ifdef CONFIG_B43LEGACY_DEBUG
bool manual_txpower_control; /* Manual TX-power control enabled? */
#endif
/* Current Interference Mitigation mode */
int interfmode;
/* Stack of saved values from the Interference Mitigation code.
* Each value in the stack is layed out as follows:
* bit 0-11: offset
* bit 12-15: register ID
* bit 16-32: value
* register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
*/
#define B43legacy_INTERFSTACK_SIZE 26
u32 interfstack[B43legacy_INTERFSTACK_SIZE];
/* Saved values from the NRSSI Slope calculation */
s16 nrssi[2];
s32 nrssislope;
/* In memory nrssi lookup table. */
s8 nrssi_lt[64];
/* current channel */
u8 channel;
u16 lofcal;
u16 initval;
};
/* Data structures for DMA transmission, per 80211 core. */
struct b43legacy_dma {
struct b43legacy_dmaring *tx_ring0;
struct b43legacy_dmaring *tx_ring1;
struct b43legacy_dmaring *tx_ring2;
struct b43legacy_dmaring *tx_ring3;
struct b43legacy_dmaring *tx_ring4;
struct b43legacy_dmaring *tx_ring5;
struct b43legacy_dmaring *rx_ring0;
struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
};
/* Data structures for PIO transmission, per 80211 core. */
struct b43legacy_pio {
struct b43legacy_pioqueue *queue0;
struct b43legacy_pioqueue *queue1;
struct b43legacy_pioqueue *queue2;
struct b43legacy_pioqueue *queue3;
};
/* Context information for a noise calculation (Link Quality). */
struct b43legacy_noise_calculation {
u8 channel_at_start;
bool calculation_running;
u8 nr_samples;
s8 samples[8][4];
};
struct b43legacy_stats {
u8 link_noise;
/* Store the last TX/RX times here for updating the leds. */
unsigned long last_tx;
unsigned long last_rx;
};
struct b43legacy_key {
void *keyconf;
bool enabled;
u8 algorithm;
};
struct b43legacy_wldev;
/* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
struct b43legacy_wl {
/* Pointer to the active wireless device on this chip */
struct b43legacy_wldev *current_dev;
/* Pointer to the ieee80211 hardware data structure */
struct ieee80211_hw *hw;
spinlock_t irq_lock; /* locks IRQ */
struct mutex mutex; /* locks wireless core state */
spinlock_t leds_lock; /* lock for leds */
/* We can only have one operating interface (802.11 core)
* at a time. General information about this interface follows.
*/
/* Opaque ID of the operating interface from the ieee80211
* subsystem. Do not modify.
*/
int if_id;
/* MAC address (can be NULL). */
u8 mac_addr[ETH_ALEN];
/* Current BSSID (can be NULL). */
u8 bssid[ETH_ALEN];
/* Interface type. (IEEE80211_IF_TYPE_XXX) */
int if_type;
/* Is the card operating in AP, STA or IBSS mode? */
bool operating;
/* filter flags */
unsigned int filter_flags;
/* Stats about the wireless interface */
struct ieee80211_low_level_stats ieee_stats;
struct hwrng rng;
u8 rng_initialized;
char rng_name[30 + 1];
/* List of all wireless devices on this chip */
struct list_head devlist;
u8 nr_devs;
};
/* Pointers to the firmware data and meta information about it. */
struct b43legacy_firmware {
/* Microcode */
const struct firmware *ucode;
/* PCM code */
const struct firmware *pcm;
/* Initial MMIO values for the firmware */
const struct firmware *initvals;
/* Initial MMIO values for the firmware, band-specific */
const struct firmware *initvals_band;
/* Firmware revision */
u16 rev;
/* Firmware patchlevel */
u16 patch;
};
/* Device (802.11 core) initialization status. */
enum {
B43legacy_STAT_UNINIT = 0, /* Uninitialized. */
B43legacy_STAT_INITIALIZED = 1, /* Initialized, not yet started. */
B43legacy_STAT_STARTED = 2, /* Up and running. */
};
#define b43legacy_status(wldev) atomic_read(&(wldev)->__init_status)
#define b43legacy_set_status(wldev, stat) do { \
atomic_set(&(wldev)->__init_status, (stat)); \
smp_wmb(); \
} while (0)
/* *** --- HOW LOCKING WORKS IN B43legacy --- ***
*
* You should always acquire both, wl->mutex and wl->irq_lock unless:
* - You don't need to acquire wl->irq_lock, if the interface is stopped.
* - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
* and packet TX path (and _ONLY_ there.)
*/
/* Data structure for one wireless device (802.11 core) */
struct b43legacy_wldev {
struct ssb_device *dev;
struct b43legacy_wl *wl;
/* The device initialization status.
* Use b43legacy_status() to query. */
atomic_t __init_status;
/* Saved init status for handling suspend. */
int suspend_init_status;
bool __using_pio; /* Using pio rather than dma. */
bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
bool reg124_set_0x4; /* Variable to keep track of IRQ. */
bool short_preamble; /* TRUE if using short preamble. */
bool short_slot; /* TRUE if using short slot timing. */
bool radio_hw_enable; /* State of radio hardware enable bit. */
/* PHY/Radio device. */
struct b43legacy_phy phy;
union {
/* DMA engines. */
struct b43legacy_dma dma;
/* PIO engines. */
struct b43legacy_pio pio;
};
/* Various statistics about the physical device. */
struct b43legacy_stats stats;
#define B43legacy_NR_LEDS 4
struct b43legacy_led leds[B43legacy_NR_LEDS];
/* Reason code of the last interrupt. */
u32 irq_reason;
u32 dma_reason[6];
/* saved irq enable/disable state bitfield. */
u32 irq_savedstate;
/* Link Quality calculation context. */
struct b43legacy_noise_calculation noisecalc;
/* if > 0 MAC is suspended. if == 0 MAC is enabled. */
int mac_suspended;
/* Interrupt Service Routine tasklet (bottom-half) */
struct tasklet_struct isr_tasklet;
/* Periodic tasks */
struct delayed_work periodic_work;
unsigned int periodic_state;
struct work_struct restart_work;
/* encryption/decryption */
u16 ktp; /* Key table pointer */
u8 max_nr_keys;
struct b43legacy_key key[58];
/* Cached beacon template while uploading the template. */
struct sk_buff *cached_beacon;
/* Firmware data */
struct b43legacy_firmware fw;
/* Devicelist in struct b43legacy_wl (all 802.11 cores) */
struct list_head list;
/* Debugging stuff follows. */
#ifdef CONFIG_B43LEGACY_DEBUG
struct b43legacy_dfsentry *dfsentry;
#endif
};
static inline
struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
{
return hw->priv;
}
/* Helper function, which returns a boolean.
* TRUE, if PIO is used; FALSE, if DMA is used.
*/
#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
static inline
int b43legacy_using_pio(struct b43legacy_wldev *dev)
{
return dev->__using_pio;
}
#elif defined(CONFIG_B43LEGACY_DMA)
static inline
int b43legacy_using_pio(struct b43legacy_wldev *dev)
{
return 0;
}
#elif defined(CONFIG_B43LEGACY_PIO)
static inline
int b43legacy_using_pio(struct b43legacy_wldev *dev)
{
return 1;
}
#else
# error "Using neither DMA nor PIO? Confused..."
#endif
static inline
struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
{
struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
return ssb_get_drvdata(ssb_dev);
}
/* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
static inline
int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
{
return (wl->operating &&
wl->if_type == type);
}
static inline
bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
{
return (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
}
static inline
u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
{
return ssb_read16(dev->dev, offset);
}
static inline
void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
{
ssb_write16(dev->dev, offset, value);
}
static inline
u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
{
return ssb_read32(dev->dev, offset);
}
static inline
void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
{
ssb_write32(dev->dev, offset, value);
}
static inline
struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
u16 radio_attenuation,
u16 baseband_attenuation)
{
return phy->_lo_pairs + (radio_attenuation
+ 14 * (baseband_attenuation / 2));
}
/* Message printing */
void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
#if B43legacy_DEBUG
void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
#else /* DEBUG */
# define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
#endif /* DEBUG */
/** Limit a value between two limits */
#ifdef limit_value
# undef limit_value
#endif
#define limit_value(value, min, max) \
({ \
typeof(value) __value = (value); \
typeof(value) __min = (min); \
typeof(value) __max = (max); \
if (__value < __min) \
__value = __min; \
else if (__value > __max) \
__value = __max; \
__value; \
})
/* Macros for printing a value in Q5.2 format */
#define Q52_FMT "%u.%u"
#define Q52_ARG(q52) ((q52) / 4), (((q52) & 3) * 100 / 4)
#endif /* B43legacy_H_ */
