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5100d5ac81
linux_dsm_epyc7002/drivers/net/wireless/b43/b43.h
Michael Buesch 5100d5ac81 b43: Add PIO support for PCMCIA devices 
This adds PIO support back (D'oh!) for PCMCIA devices.
This is a complete rewrite of the old PIO code. It does actually work
and we get reasonable performance out of it on a modern machine.
On a PowerBook G4 I get a few MBit for TX and a few more for RX.
So it doesn't work as well as DMA (of course), but it's a _lot_ faster
than the old PIO code (only got a few kBit with that).

The limiting factor is the host CPU speed. So it will generate 100%
CPU usage when the network interface is heavily loaded. A voluntary preemption
point in the RX path makes sure Desktop Latency isn't hurt.

PIO is needed for 16bit PCMCIA devices, as we really don't want to poke with
the braindead DMA mechanisms on PCMCIA sockets. Additionally, not all
PCMCIA sockets do actually support DMA in 16bit mode (mine doesn't).

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 15:05:56 -04:00

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#ifndef B43_H_
#define B43_H_
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/hw_random.h>
#include <linux/ssb/ssb.h>
#include <net/mac80211.h>
#include "debugfs.h"
#include "leds.h"
#include "rfkill.h"
#include "lo.h"
#include "phy.h"
/* The unique identifier of the firmware that's officially supported by
* this driver version. */
#define B43_SUPPORTED_FIRMWARE_ID "FW13"
#ifdef CONFIG_B43_DEBUG
# define B43_DEBUG 1
#else
# define B43_DEBUG 0
#endif
#define B43_RX_MAX_SSI 60
/* MMIO offsets */
#define B43_MMIO_DMA0_REASON 0x20
#define B43_MMIO_DMA0_IRQ_MASK 0x24
#define B43_MMIO_DMA1_REASON 0x28
#define B43_MMIO_DMA1_IRQ_MASK 0x2C
#define B43_MMIO_DMA2_REASON 0x30
#define B43_MMIO_DMA2_IRQ_MASK 0x34
#define B43_MMIO_DMA3_REASON 0x38
#define B43_MMIO_DMA3_IRQ_MASK 0x3C
#define B43_MMIO_DMA4_REASON 0x40
#define B43_MMIO_DMA4_IRQ_MASK 0x44
#define B43_MMIO_DMA5_REASON 0x48
#define B43_MMIO_DMA5_IRQ_MASK 0x4C
#define B43_MMIO_MACCTL 0x120 /* MAC control */
#define B43_MMIO_MACCMD 0x124 /* MAC command */
#define B43_MMIO_GEN_IRQ_REASON 0x128
#define B43_MMIO_GEN_IRQ_MASK 0x12C
#define B43_MMIO_RAM_CONTROL 0x130
#define B43_MMIO_RAM_DATA 0x134
#define B43_MMIO_PS_STATUS 0x140
#define B43_MMIO_RADIO_HWENABLED_HI 0x158
#define B43_MMIO_SHM_CONTROL 0x160
#define B43_MMIO_SHM_DATA 0x164
#define B43_MMIO_SHM_DATA_UNALIGNED 0x166
#define B43_MMIO_XMITSTAT_0 0x170
#define B43_MMIO_XMITSTAT_1 0x174
#define B43_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
#define B43_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */
#define B43_MMIO_TSF_CFP_REP 0x188
#define B43_MMIO_TSF_CFP_START 0x18C
#define B43_MMIO_TSF_CFP_MAXDUR 0x190
/* 32-bit DMA */
#define B43_MMIO_DMA32_BASE0 0x200
#define B43_MMIO_DMA32_BASE1 0x220
#define B43_MMIO_DMA32_BASE2 0x240
#define B43_MMIO_DMA32_BASE3 0x260
#define B43_MMIO_DMA32_BASE4 0x280
#define B43_MMIO_DMA32_BASE5 0x2A0
/* 64-bit DMA */
#define B43_MMIO_DMA64_BASE0 0x200
#define B43_MMIO_DMA64_BASE1 0x240
#define B43_MMIO_DMA64_BASE2 0x280
#define B43_MMIO_DMA64_BASE3 0x2C0
#define B43_MMIO_DMA64_BASE4 0x300
#define B43_MMIO_DMA64_BASE5 0x340
/* PIO on core rev < 11 */
#define B43_MMIO_PIO_BASE0 0x300
#define B43_MMIO_PIO_BASE1 0x310
#define B43_MMIO_PIO_BASE2 0x320
#define B43_MMIO_PIO_BASE3 0x330
#define B43_MMIO_PIO_BASE4 0x340
#define B43_MMIO_PIO_BASE5 0x350
#define B43_MMIO_PIO_BASE6 0x360
#define B43_MMIO_PIO_BASE7 0x370
/* PIO on core rev >= 11 */
#define B43_MMIO_PIO11_BASE0 0x200
#define B43_MMIO_PIO11_BASE1 0x240
#define B43_MMIO_PIO11_BASE2 0x280
#define B43_MMIO_PIO11_BASE3 0x2C0
#define B43_MMIO_PIO11_BASE4 0x300
#define B43_MMIO_PIO11_BASE5 0x340
#define B43_MMIO_PHY_VER 0x3E0
#define B43_MMIO_PHY_RADIO 0x3E2
#define B43_MMIO_PHY0 0x3E6
#define B43_MMIO_ANTENNA 0x3E8
#define B43_MMIO_CHANNEL 0x3F0
#define B43_MMIO_CHANNEL_EXT 0x3F4
#define B43_MMIO_RADIO_CONTROL 0x3F6
#define B43_MMIO_RADIO_DATA_HIGH 0x3F8
#define B43_MMIO_RADIO_DATA_LOW 0x3FA
#define B43_MMIO_PHY_CONTROL 0x3FC
#define B43_MMIO_PHY_DATA 0x3FE
#define B43_MMIO_MACFILTER_CONTROL 0x420
#define B43_MMIO_MACFILTER_DATA 0x422
#define B43_MMIO_RCMTA_COUNT 0x43C
#define B43_MMIO_RADIO_HWENABLED_LO 0x49A
#define B43_MMIO_GPIO_CONTROL 0x49C
#define B43_MMIO_GPIO_MASK 0x49E
#define B43_MMIO_TSF_CFP_START_LOW 0x604
#define B43_MMIO_TSF_CFP_START_HIGH 0x606
#define B43_MMIO_TSF_0 0x632 /* core rev < 3 only */
#define B43_MMIO_TSF_1 0x634 /* core rev < 3 only */
#define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */
#define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */
#define B43_MMIO_RNG 0x65A
#define B43_MMIO_IFSCTL 0x688 /* Interframe space control */
#define B43_MMIO_IFSCTL_USE_EDCF 0x0004
#define B43_MMIO_POWERUP_DELAY 0x6A8
/* SPROM boardflags_lo values */
#define B43_BFL_BTCOEXIST 0x0001 /* implements Bluetooth coexistance */
#define B43_BFL_PACTRL 0x0002 /* GPIO 9 controlling the PA */
#define B43_BFL_AIRLINEMODE 0x0004 /* implements GPIO 13 radio disable indication */
#define B43_BFL_RSSI 0x0008 /* software calculates nrssi slope. */
#define B43_BFL_ENETSPI 0x0010 /* has ephy roboswitch spi */
#define B43_BFL_XTAL_NOSLOW 0x0020 /* no slow clock available */
#define B43_BFL_CCKHIPWR 0x0040 /* can do high power CCK transmission */
#define B43_BFL_ENETADM 0x0080 /* has ADMtek switch */
#define B43_BFL_ENETVLAN 0x0100 /* can do vlan */
#define B43_BFL_AFTERBURNER 0x0200 /* supports Afterburner mode */
#define B43_BFL_NOPCI 0x0400 /* leaves PCI floating */
#define B43_BFL_FEM 0x0800 /* supports the Front End Module */
#define B43_BFL_EXTLNA 0x1000 /* has an external LNA */
#define B43_BFL_HGPA 0x2000 /* had high gain PA */
#define B43_BFL_BTCMOD 0x4000 /* BFL_BTCOEXIST is given in alternate GPIOs */
#define B43_BFL_ALTIQ 0x8000 /* alternate I/Q settings */
/* GPIO register offset, in both ChipCommon and PCI core. */
#define B43_GPIO_CONTROL 0x6c
/* SHM Routing */
enum {
B43_SHM_UCODE, /* Microcode memory */
B43_SHM_SHARED, /* Shared memory */
B43_SHM_SCRATCH, /* Scratch memory */
B43_SHM_HW, /* Internal hardware register */
B43_SHM_RCMTA, /* Receive match transmitter address (rev >= 5 only) */
};
/* SHM Routing modifiers */
#define B43_SHM_AUTOINC_R 0x0200 /* Auto-increment address on read */
#define B43_SHM_AUTOINC_W 0x0100 /* Auto-increment address on write */
#define B43_SHM_AUTOINC_RW (B43_SHM_AUTOINC_R | \
B43_SHM_AUTOINC_W)
/* Misc SHM_SHARED offsets */
#define B43_SHM_SH_WLCOREREV 0x0016 /* 802.11 core revision */
#define B43_SHM_SH_PCTLWDPOS 0x0008
#define B43_SHM_SH_RXPADOFF 0x0034 /* RX Padding data offset (PIO only) */
#define B43_SHM_SH_PHYVER 0x0050 /* PHY version */
#define B43_SHM_SH_PHYTYPE 0x0052 /* PHY type */
#define B43_SHM_SH_ANTSWAP 0x005C /* Antenna swap threshold */
#define B43_SHM_SH_HOSTFLO 0x005E /* Hostflags for ucode options (low) */
#define B43_SHM_SH_HOSTFMI 0x0060 /* Hostflags for ucode options (middle) */
#define B43_SHM_SH_HOSTFHI 0x0062 /* Hostflags for ucode options (high) */
#define B43_SHM_SH_RFATT 0x0064 /* Current radio attenuation value */
#define B43_SHM_SH_RADAR 0x0066 /* Radar register */
#define B43_SHM_SH_PHYTXNOI 0x006E /* PHY noise directly after TX (lower 8bit only) */
#define B43_SHM_SH_RFRXSP1 0x0072 /* RF RX SP Register 1 */
#define B43_SHM_SH_CHAN 0x00A0 /* Current channel (low 8bit only) */
#define B43_SHM_SH_CHAN_5GHZ 0x0100 /* Bit set, if 5Ghz channel */
#define B43_SHM_SH_BCMCFIFOID 0x0108 /* Last posted cookie to the bcast/mcast FIFO */
/* SHM_SHARED TX FIFO variables */
#define B43_SHM_SH_SIZE01 0x0098 /* TX FIFO size for FIFO 0 (low) and 1 (high) */
#define B43_SHM_SH_SIZE23 0x009A /* TX FIFO size for FIFO 2 and 3 */
#define B43_SHM_SH_SIZE45 0x009C /* TX FIFO size for FIFO 4 and 5 */
#define B43_SHM_SH_SIZE67 0x009E /* TX FIFO size for FIFO 6 and 7 */
/* SHM_SHARED background noise */
#define B43_SHM_SH_JSSI0 0x0088 /* Measure JSSI 0 */
#define B43_SHM_SH_JSSI1 0x008A /* Measure JSSI 1 */
#define B43_SHM_SH_JSSIAUX 0x008C /* Measure JSSI AUX */
/* SHM_SHARED crypto engine */
#define B43_SHM_SH_DEFAULTIV 0x003C /* Default IV location */
#define B43_SHM_SH_NRRXTRANS 0x003E /* # of soft RX transmitter addresses (max 8) */
#define B43_SHM_SH_KTP 0x0056 /* Key table pointer */
#define B43_SHM_SH_TKIPTSCTTAK 0x0318
#define B43_SHM_SH_KEYIDXBLOCK 0x05D4 /* Key index/algorithm block (v4 firmware) */
#define B43_SHM_SH_PSM 0x05F4 /* PSM transmitter address match block (rev < 5) */
/* SHM_SHARED WME variables */
#define B43_SHM_SH_EDCFSTAT 0x000E /* EDCF status */
#define B43_SHM_SH_TXFCUR 0x0030 /* TXF current index */
#define B43_SHM_SH_EDCFQ 0x0240 /* EDCF Q info */
/* SHM_SHARED powersave mode related */
#define B43_SHM_SH_SLOTT 0x0010 /* Slot time */
#define B43_SHM_SH_DTIMPER 0x0012 /* DTIM period */
#define B43_SHM_SH_NOSLPZNATDTIM 0x004C /* NOSLPZNAT DTIM */
/* SHM_SHARED beacon/AP variables */
#define B43_SHM_SH_BTL0 0x0018 /* Beacon template length 0 */
#define B43_SHM_SH_BTL1 0x001A /* Beacon template length 1 */
#define B43_SHM_SH_BTSFOFF 0x001C /* Beacon TSF offset */
#define B43_SHM_SH_TIMBPOS 0x001E /* TIM B position in beacon */
#define B43_SHM_SH_DTIMP 0x0012 /* DTIP period */
#define B43_SHM_SH_MCASTCOOKIE 0x00A8 /* Last bcast/mcast frame ID */
#define B43_SHM_SH_SFFBLIM 0x0044 /* Short frame fallback retry limit */
#define B43_SHM_SH_LFFBLIM 0x0046 /* Long frame fallback retry limit */
#define B43_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word (see PHY TX control) */
#define B43_SHM_SH_EXTNPHYCTL 0x00B0 /* Extended bytes for beacon PHY control (N) */
/* SHM_SHARED ACK/CTS control */
#define B43_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word (see PHY TX control) */
/* SHM_SHARED probe response variables */
#define B43_SHM_SH_PRSSID 0x0160 /* Probe Response SSID */
#define B43_SHM_SH_PRSSIDLEN 0x0048 /* Probe Response SSID length */
#define B43_SHM_SH_PRTLEN 0x004A /* Probe Response template length */
#define B43_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */
#define B43_SHM_SH_PRPHYCTL 0x0188 /* Probe Response PHY TX control word */
/* SHM_SHARED rate tables */
#define B43_SHM_SH_OFDMDIRECT 0x01C0 /* Pointer to OFDM direct map */
#define B43_SHM_SH_OFDMBASIC 0x01E0 /* Pointer to OFDM basic rate map */
#define B43_SHM_SH_CCKDIRECT 0x0200 /* Pointer to CCK direct map */
#define B43_SHM_SH_CCKBASIC 0x0220 /* Pointer to CCK basic rate map */
/* SHM_SHARED microcode soft registers */
#define B43_SHM_SH_UCODEREV 0x0000 /* Microcode revision */
#define B43_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */
#define B43_SHM_SH_UCODEDATE 0x0004 /* Microcode date */
#define B43_SHM_SH_UCODETIME 0x0006 /* Microcode time */
#define B43_SHM_SH_UCODESTAT 0x0040 /* Microcode debug status code */
#define B43_SHM_SH_UCODESTAT_INVALID 0
#define B43_SHM_SH_UCODESTAT_INIT 1
#define B43_SHM_SH_UCODESTAT_ACTIVE 2
#define B43_SHM_SH_UCODESTAT_SUSP 3 /* suspended */
#define B43_SHM_SH_UCODESTAT_SLEEP 4 /* asleep (PS) */
#define B43_SHM_SH_MAXBFRAMES 0x0080 /* Maximum number of frames in a burst */
#define B43_SHM_SH_SPUWKUP 0x0094 /* pre-wakeup for synth PU in us */
#define B43_SHM_SH_PRETBTT 0x0096 /* pre-TBTT in us */
/* SHM_SCRATCH offsets */
#define B43_SHM_SC_MINCONT 0x0003 /* Minimum contention window */
#define B43_SHM_SC_MAXCONT 0x0004 /* Maximum contention window */
#define B43_SHM_SC_CURCONT 0x0005 /* Current contention window */
#define B43_SHM_SC_SRLIMIT 0x0006 /* Short retry count limit */
#define B43_SHM_SC_LRLIMIT 0x0007 /* Long retry count limit */
#define B43_SHM_SC_DTIMC 0x0008 /* Current DTIM count */
#define B43_SHM_SC_BTL0LEN 0x0015 /* Beacon 0 template length */
#define B43_SHM_SC_BTL1LEN 0x0016 /* Beacon 1 template length */
#define B43_SHM_SC_SCFB 0x0017 /* Short frame transmit count threshold for rate fallback */
#define B43_SHM_SC_LCFB 0x0018 /* Long frame transmit count threshold for rate fallback */
/* Hardware Radio Enable masks */
#define B43_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
#define B43_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
/* HostFlags. See b43_hf_read/write() */
#define B43_HF_ANTDIVHELP 0x000000000001ULL /* ucode antenna div helper */
#define B43_HF_SYMW 0x000000000002ULL /* G-PHY SYM workaround */
#define B43_HF_RXPULLW 0x000000000004ULL /* RX pullup workaround */
#define B43_HF_CCKBOOST 0x000000000008ULL /* 4dB CCK power boost (exclusive with OFDM boost) */
#define B43_HF_BTCOEX 0x000000000010ULL /* Bluetooth coexistance */
#define B43_HF_GDCW 0x000000000020ULL /* G-PHY DC canceller filter bw workaround */
#define B43_HF_OFDMPABOOST 0x000000000040ULL /* Enable PA gain boost for OFDM */
#define B43_HF_ACPR 0x000000000080ULL /* Disable for Japan, channel 14 */
#define B43_HF_EDCF 0x000000000100ULL /* on if WME and MAC suspended */
#define B43_HF_TSSIRPSMW 0x000000000200ULL /* TSSI reset PSM ucode workaround */
#define B43_HF_20IN40IQW 0x000000000200ULL /* 20 in 40 MHz I/Q workaround (rev >= 13 only) */
#define B43_HF_DSCRQ 0x000000000400ULL /* Disable slow clock request in ucode */
#define B43_HF_ACIW 0x000000000800ULL /* ACI workaround: shift bits by 2 on PHY CRS */
#define B43_HF_2060W 0x000000001000ULL /* 2060 radio workaround */
#define B43_HF_RADARW 0x000000002000ULL /* Radar workaround */
#define B43_HF_USEDEFKEYS 0x000000004000ULL /* Enable use of default keys */
#define B43_HF_AFTERBURNER 0x000000008000ULL /* Afterburner enabled */
#define B43_HF_BT4PRIOCOEX 0x000000010000ULL /* Bluetooth 4-priority coexistance */
#define B43_HF_FWKUP 0x000000020000ULL /* Fast wake-up ucode */
#define B43_HF_VCORECALC 0x000000040000ULL /* Force VCO recalculation when powering up synthpu */
#define B43_HF_PCISCW 0x000000080000ULL /* PCI slow clock workaround */
#define B43_HF_4318TSSI 0x000000200000ULL /* 4318 TSSI */
#define B43_HF_FBCMCFIFO 0x000000400000ULL /* Flush bcast/mcast FIFO immediately */
#define B43_HF_HWPCTL 0x000000800000ULL /* Enable hardwarre power control */
#define B43_HF_BTCOEXALT 0x000001000000ULL /* Bluetooth coexistance in alternate pins */
#define B43_HF_TXBTCHECK 0x000002000000ULL /* Bluetooth check during transmission */
#define B43_HF_SKCFPUP 0x000004000000ULL /* Skip CFP update */
#define B43_HF_N40W 0x000008000000ULL /* N PHY 40 MHz workaround (rev >= 13 only) */
#define B43_HF_ANTSEL 0x000020000000ULL /* Antenna selection (for testing antenna div.) */
#define B43_HF_BT3COEXT 0x000020000000ULL /* Bluetooth 3-wire coexistence (rev >= 13 only) */
#define B43_HF_BTCANT 0x000040000000ULL /* Bluetooth coexistence (antenna mode) (rev >= 13 only) */
#define B43_HF_ANTSELEN 0x000100000000ULL /* Antenna selection enabled (rev >= 13 only) */
#define B43_HF_ANTSELMODE 0x000200000000ULL /* Antenna selection mode (rev >= 13 only) */
#define B43_HF_MLADVW 0x001000000000ULL /* N PHY ML ADV workaround (rev >= 13 only) */
#define B43_HF_PR45960W 0x080000000000ULL /* PR 45960 workaround (rev >= 13 only) */
/* MacFilter offsets. */
#define B43_MACFILTER_SELF 0x0000
#define B43_MACFILTER_BSSID 0x0003
/* PowerControl */
#define B43_PCTL_IN 0xB0
#define B43_PCTL_OUT 0xB4
#define B43_PCTL_OUTENABLE 0xB8
#define B43_PCTL_XTAL_POWERUP 0x40
#define B43_PCTL_PLL_POWERDOWN 0x80
/* PowerControl Clock Modes */
#define B43_PCTL_CLK_FAST 0x00
#define B43_PCTL_CLK_SLOW 0x01
#define B43_PCTL_CLK_DYNAMIC 0x02
#define B43_PCTL_FORCE_SLOW 0x0800
#define B43_PCTL_FORCE_PLL 0x1000
#define B43_PCTL_DYN_XTAL 0x2000
/* PHYVersioning */
#define B43_PHYTYPE_A 0x00
#define B43_PHYTYPE_B 0x01
#define B43_PHYTYPE_G 0x02
#define B43_PHYTYPE_N 0x04
#define B43_PHYTYPE_LP 0x05
/* PHYRegisters */
#define B43_PHY_ILT_A_CTRL 0x0072
#define B43_PHY_ILT_A_DATA1 0x0073
#define B43_PHY_ILT_A_DATA2 0x0074
#define B43_PHY_G_LO_CONTROL 0x0810
#define B43_PHY_ILT_G_CTRL 0x0472
#define B43_PHY_ILT_G_DATA1 0x0473
#define B43_PHY_ILT_G_DATA2 0x0474
#define B43_PHY_A_PCTL 0x007B
#define B43_PHY_G_PCTL 0x0029
#define B43_PHY_A_CRS 0x0029
#define B43_PHY_RADIO_BITFIELD 0x0401
#define B43_PHY_G_CRS 0x0429
#define B43_PHY_NRSSILT_CTRL 0x0803
#define B43_PHY_NRSSILT_DATA 0x0804
/* RadioRegisters */
#define B43_RADIOCTL_ID 0x01
/* MAC Control bitfield */
#define B43_MACCTL_ENABLED 0x00000001 /* MAC Enabled */
#define B43_MACCTL_PSM_RUN 0x00000002 /* Run Microcode */
#define B43_MACCTL_PSM_JMP0 0x00000004 /* Microcode jump to 0 */
#define B43_MACCTL_SHM_ENABLED 0x00000100 /* SHM Enabled */
#define B43_MACCTL_SHM_UPPER 0x00000200 /* SHM Upper */
#define B43_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */
#define B43_MACCTL_PSM_DBG 0x00002000 /* Microcode debugging enabled */
#define B43_MACCTL_GPOUTSMSK 0x0000C000 /* GPOUT Select Mask */
#define B43_MACCTL_BE 0x00010000 /* Big Endian mode */
#define B43_MACCTL_INFRA 0x00020000 /* Infrastructure mode */
#define B43_MACCTL_AP 0x00040000 /* AccessPoint mode */
#define B43_MACCTL_RADIOLOCK 0x00080000 /* Radio lock */
#define B43_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */
#define B43_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep frames with bad PLCP */
#define B43_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */
#define B43_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */
#define B43_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */
#define B43_MACCTL_HWPS 0x02000000 /* Hardware Power Saving */
#define B43_MACCTL_AWAKE 0x04000000 /* Device is awake */
#define B43_MACCTL_CLOSEDNET 0x08000000 /* Closed net (no SSID bcast) */
#define B43_MACCTL_TBTTHOLD 0x10000000 /* TBTT Hold */
#define B43_MACCTL_DISCTXSTAT 0x20000000 /* Discard TX status */
#define B43_MACCTL_DISCPMQ 0x40000000 /* Discard Power Management Queue */
#define B43_MACCTL_GMODE 0x80000000 /* G Mode */
/* MAC Command bitfield */
#define B43_MACCMD_BEACON0_VALID 0x00000001 /* Beacon 0 in template RAM is busy/valid */
#define B43_MACCMD_BEACON1_VALID 0x00000002 /* Beacon 1 in template RAM is busy/valid */
#define B43_MACCMD_DFQ_VALID 0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
#define B43_MACCMD_CCA 0x00000008 /* Clear channel assessment */
#define B43_MACCMD_BGNOISE 0x00000010 /* Background noise */
/* 802.11 core specific TM State Low (SSB_TMSLOW) flags */
#define B43_TMSLOW_GMODE 0x20000000 /* G Mode Enable */
#define B43_TMSLOW_PHYCLKSPEED 0x00C00000 /* PHY clock speed mask (N-PHY only) */
#define B43_TMSLOW_PHYCLKSPEED_40MHZ 0x00000000 /* 40 MHz PHY */
#define B43_TMSLOW_PHYCLKSPEED_80MHZ 0x00400000 /* 80 MHz PHY */
#define B43_TMSLOW_PHYCLKSPEED_160MHZ 0x00800000 /* 160 MHz PHY */
#define B43_TMSLOW_PLLREFSEL 0x00200000 /* PLL Frequency Reference Select (rev >= 5) */
#define B43_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Control Enable (rev >= 5) */
#define B43_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */
#define B43_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */
/* 802.11 core specific TM State High (SSB_TMSHIGH) flags */
#define B43_TMSHIGH_DUALBAND_PHY 0x00080000 /* Dualband PHY available */
#define B43_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available (rev >= 5) */
#define B43_TMSHIGH_HAVE_5GHZ_PHY 0x00020000 /* 5 GHz PHY available (rev >= 5) */
#define B43_TMSHIGH_HAVE_2GHZ_PHY 0x00010000 /* 2.4 GHz PHY available (rev >= 5) */
/* Generic-Interrupt reasons. */
#define B43_IRQ_MAC_SUSPENDED 0x00000001
#define B43_IRQ_BEACON 0x00000002
#define B43_IRQ_TBTT_INDI 0x00000004
#define B43_IRQ_BEACON_TX_OK 0x00000008
#define B43_IRQ_BEACON_CANCEL 0x00000010
#define B43_IRQ_ATIM_END 0x00000020
#define B43_IRQ_PMQ 0x00000040
#define B43_IRQ_PIO_WORKAROUND 0x00000100
#define B43_IRQ_MAC_TXERR 0x00000200
#define B43_IRQ_PHY_TXERR 0x00000800
#define B43_IRQ_PMEVENT 0x00001000
#define B43_IRQ_TIMER0 0x00002000
#define B43_IRQ_TIMER1 0x00004000
#define B43_IRQ_DMA 0x00008000
#define B43_IRQ_TXFIFO_FLUSH_OK 0x00010000
#define B43_IRQ_CCA_MEASURE_OK 0x00020000
#define B43_IRQ_NOISESAMPLE_OK 0x00040000
#define B43_IRQ_UCODE_DEBUG 0x08000000
#define B43_IRQ_RFKILL 0x10000000
#define B43_IRQ_TX_OK 0x20000000
#define B43_IRQ_PHY_G_CHANGED 0x40000000
#define B43_IRQ_TIMEOUT 0x80000000
#define B43_IRQ_ALL 0xFFFFFFFF
#define B43_IRQ_MASKTEMPLATE (B43_IRQ_MAC_SUSPENDED | \
B43_IRQ_BEACON | \
B43_IRQ_TBTT_INDI | \
B43_IRQ_ATIM_END | \
B43_IRQ_PMQ | \
B43_IRQ_MAC_TXERR | \
B43_IRQ_PHY_TXERR | \
B43_IRQ_DMA | \
B43_IRQ_TXFIFO_FLUSH_OK | \
B43_IRQ_NOISESAMPLE_OK | \
B43_IRQ_UCODE_DEBUG | \
B43_IRQ_RFKILL | \
B43_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 B43_CCK_RATE_1MB 0x02
#define B43_CCK_RATE_2MB 0x04
#define B43_CCK_RATE_5MB 0x0B
#define B43_CCK_RATE_11MB 0x16
#define B43_OFDM_RATE_6MB 0x0C
#define B43_OFDM_RATE_9MB 0x12
#define B43_OFDM_RATE_12MB 0x18
#define B43_OFDM_RATE_18MB 0x24
#define B43_OFDM_RATE_24MB 0x30
#define B43_OFDM_RATE_36MB 0x48
#define B43_OFDM_RATE_48MB 0x60
#define B43_OFDM_RATE_54MB 0x6C
/* Convert a b43 rate value to a rate in 100kbps */
#define B43_RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
#define B43_DEFAULT_SHORT_RETRY_LIMIT 7
#define B43_DEFAULT_LONG_RETRY_LIMIT 4
#define B43_PHY_TX_BADNESS_LIMIT 1000
/* Max size of a security key */
#define B43_SEC_KEYSIZE 16
/* Security algorithms. */
enum {
B43_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
B43_SEC_ALGO_WEP40,
B43_SEC_ALGO_TKIP,
B43_SEC_ALGO_AES,
B43_SEC_ALGO_WEP104,
B43_SEC_ALGO_AES_LEGACY,
};
struct b43_dmaring;
/* The firmware file header */
#define B43_FW_TYPE_UCODE 'u'
#define B43_FW_TYPE_PCM 'p'
#define B43_FW_TYPE_IV 'i'
struct b43_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 B43_IV_OFFSET_MASK 0x7FFF
#define B43_IV_32BIT 0x8000
struct b43_iv {
__be16 offset_size;
union {
__be16 d16;
__be32 d32;
} data __attribute__((__packed__));
} __attribute__((__packed__));
struct b43_phy {
/* Band support flags. */
bool supports_2ghz;
bool supports_5ghz;
/* GMODE bit enabled? */
bool gmode;
/* Analog Type */
u8 analog;
/* B43_PHYTYPE_ */
u8 type;
/* PHY revision number. */
u8 rev;
/* Radio versioning */
u16 radio_manuf; /* Radio manufacturer */
u16 radio_ver; /* Radio version */
u8 radio_rev; /* Radio revision */
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];
/* TSSI to dBm table in use */
const s8 *tssi2dbm;
/* Target idle TSSI */
int tgt_idle_tssi;
/* Current idle TSSI */
int cur_idle_tssi;
/* LocalOscillator control values. */
struct b43_txpower_lo_control *lo_control;
/* Values from b43_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 */
/* Desired TX power level (in dBm).
* This is set by the user and adjusted in b43_phy_xmitpower(). */
u8 power_level;
/* A-PHY TX Power control value. */
u16 txpwr_offset;
/* Current TX power level attenuation control values */
struct b43_bbatt bbatt;
struct b43_rfatt rfatt;
u8 tx_control; /* B43_TXCTL_XXX */
/* Hardware Power Control enabled? */
bool hardware_power_control;
/* 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 B43_INTERFSTACK_SIZE 26
u32 interfstack[B43_INTERFSTACK_SIZE]; //FIXME: use a data structure
/* 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; //FIXME rename?
/* PHY TX errors counter. */
atomic_t txerr_cnt;
/* The device does address auto increment for the OFDM tables.
* We cache the previously used address here and omit the address
* write on the next table access, if possible. */
u16 ofdmtab_addr; /* The address currently set in hardware. */
enum { /* The last data flow direction. */
B43_OFDMTAB_DIRECTION_UNKNOWN = 0,
B43_OFDMTAB_DIRECTION_READ,
B43_OFDMTAB_DIRECTION_WRITE,
} ofdmtab_addr_direction;
#if B43_DEBUG
/* Manual TX-power control enabled? */
bool manual_txpower_control;
/* PHY registers locked by b43_phy_lock()? */
bool phy_locked;
#endif /* B43_DEBUG */
};
/* Data structures for DMA transmission, per 80211 core. */
struct b43_dma {
struct b43_dmaring *tx_ring_AC_BK; /* Background */
struct b43_dmaring *tx_ring_AC_BE; /* Best Effort */
struct b43_dmaring *tx_ring_AC_VI; /* Video */
struct b43_dmaring *tx_ring_AC_VO; /* Voice */
struct b43_dmaring *tx_ring_mcast; /* Multicast */
struct b43_dmaring *rx_ring;
};
struct b43_pio_txqueue;
struct b43_pio_rxqueue;
/* Data structures for PIO transmission, per 80211 core. */
struct b43_pio {
struct b43_pio_txqueue *tx_queue_AC_BK; /* Background */
struct b43_pio_txqueue *tx_queue_AC_BE; /* Best Effort */
struct b43_pio_txqueue *tx_queue_AC_VI; /* Video */
struct b43_pio_txqueue *tx_queue_AC_VO; /* Voice */
struct b43_pio_txqueue *tx_queue_mcast; /* Multicast */
struct b43_pio_rxqueue *rx_queue;
};
/* Context information for a noise calculation (Link Quality). */
struct b43_noise_calculation {
u8 channel_at_start;
bool calculation_running;
u8 nr_samples;
s8 samples[8][4];
};
struct b43_stats {
u8 link_noise;
/* Store the last TX/RX times here for updating the leds. */
unsigned long last_tx;
unsigned long last_rx;
};
struct b43_key {
/* If keyconf is NULL, this key is disabled.
* keyconf is a cookie. Don't derefenrence it outside of the set_key
* path, because b43 doesn't own it. */
struct ieee80211_key_conf *keyconf;
u8 algorithm;
};
/* SHM offsets to the QOS data structures for the 4 different queues. */
#define B43_QOS_PARAMS(queue) (B43_SHM_SH_EDCFQ + \
(B43_NR_QOSPARAMS * sizeof(u16) * (queue)))
#define B43_QOS_BACKGROUND B43_QOS_PARAMS(0)
#define B43_QOS_BESTEFFORT B43_QOS_PARAMS(1)
#define B43_QOS_VIDEO B43_QOS_PARAMS(2)
#define B43_QOS_VOICE B43_QOS_PARAMS(3)
/* QOS parameter hardware data structure offsets. */
#define B43_NR_QOSPARAMS 22
enum {
B43_QOSPARAM_TXOP = 0,
B43_QOSPARAM_CWMIN,
B43_QOSPARAM_CWMAX,
B43_QOSPARAM_CWCUR,
B43_QOSPARAM_AIFS,
B43_QOSPARAM_BSLOTS,
B43_QOSPARAM_REGGAP,
B43_QOSPARAM_STATUS,
};
/* QOS parameters for a queue. */
struct b43_qos_params {
/* The QOS parameters */
struct ieee80211_tx_queue_params p;
/* Does this need to get uploaded to hardware? */
bool need_hw_update;
};
struct b43_wldev;
/* Data structure for the WLAN parts (802.11 cores) of the b43 chip. */
struct b43_wl {
/* Pointer to the active wireless device on this chip */
struct b43_wldev *current_dev;
/* Pointer to the ieee80211 hardware data structure */
struct ieee80211_hw *hw;
struct mutex mutex;
spinlock_t irq_lock;
/* Lock for LEDs access. */
spinlock_t leds_lock;
/* Lock for SHM access. */
spinlock_t shm_lock;
/* We can only have one operating interface (802.11 core)
* at a time. General information about this interface follows.
*/
struct ieee80211_vif *vif;
/* The MAC address of the operating interface. */
u8 mac_addr[ETH_ALEN];
/* Current BSSID */
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];
/* The RF-kill button */
struct b43_rfkill rfkill;
/* List of all wireless devices on this chip */
struct list_head devlist;
u8 nr_devs;
bool radiotap_enabled;
/* The beacon we are currently using (AP or IBSS mode).
* This beacon stuff is protected by the irq_lock. */
struct sk_buff *current_beacon;
bool beacon0_uploaded;
bool beacon1_uploaded;
/* The current QOS parameters for the 4 queues.
* This is protected by the irq_lock. */
struct b43_qos_params qos_params[4];
/* Workqueue for updating QOS parameters in hardware. */
struct work_struct qos_update_work;
};
/* In-memory representation of a cached microcode file. */
struct b43_firmware_file {
const char *filename;
const struct firmware *data;
};
/* Pointers to the firmware data and meta information about it. */
struct b43_firmware {
/* Microcode */
struct b43_firmware_file ucode;
/* PCM code */
struct b43_firmware_file pcm;
/* Initial MMIO values for the firmware */
struct b43_firmware_file initvals;
/* Initial MMIO values for the firmware, band-specific */
struct b43_firmware_file initvals_band;
/* Firmware revision */
u16 rev;
/* Firmware patchlevel */
u16 patch;
};
/* Device (802.11 core) initialization status. */
enum {
B43_STAT_UNINIT = 0, /* Uninitialized. */
B43_STAT_INITIALIZED = 1, /* Initialized, but not started, yet. */
B43_STAT_STARTED = 2, /* Up and running. */
};
#define b43_status(wldev) atomic_read(&(wldev)->__init_status)
#define b43_set_status(wldev, stat) do { \
atomic_set(&(wldev)->__init_status, (stat)); \
smp_wmb(); \
} while (0)
/* XXX--- HOW LOCKING WORKS IN B43 ---XXX
*
* 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 b43_wldev {
struct ssb_device *dev;
struct b43_wl *wl;
/* The device initialization status.
* Use b43_status() to query. */
atomic_t __init_status;
/* Saved init status for handling suspend. */
int suspend_init_status;
bool bad_frames_preempt; /* Use "Bad Frames Preemption" (default off) */
bool dfq_valid; /* Directed frame queue valid (IBSS PS mode, ATIM) */
bool short_slot; /* TRUE, if short slot timing is enabled. */
bool radio_hw_enable; /* saved state of radio hardware enabled state */
bool suspend_in_progress; /* TRUE, if we are in a suspend/resume cycle */
/* PHY/Radio device. */
struct b43_phy phy;
union {
/* DMA engines. */
struct b43_dma dma;
/* PIO engines. */
struct b43_pio pio;
};
/* Use b43_using_pio_transfers() to check whether we are using
* DMA or PIO data transfers. */
bool __using_pio_transfers;
/* Various statistics about the physical device. */
struct b43_stats stats;
/* The device LEDs. */
struct b43_led led_tx;
struct b43_led led_rx;
struct b43_led led_assoc;
struct b43_led led_radio;
/* 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 b43_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 b43_key key[58];
/* Firmware data */
struct b43_firmware fw;
/* Devicelist in struct b43_wl (all 802.11 cores) */
struct list_head list;
/* Debugging stuff follows. */
#ifdef CONFIG_B43_DEBUG
struct b43_dfsentry *dfsentry;
#endif
};
static inline struct b43_wl *hw_to_b43_wl(struct ieee80211_hw *hw)
{
return hw->priv;
}
static inline struct b43_wldev *dev_to_b43_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 b43_is_mode(struct b43_wl *wl, int type)
{
return (wl->operating && wl->if_type == type);
}
static inline u16 b43_read16(struct b43_wldev *dev, u16 offset)
{
return ssb_read16(dev->dev, offset);
}
static inline void b43_write16(struct b43_wldev *dev, u16 offset, u16 value)
{
ssb_write16(dev->dev, offset, value);
}
static inline u32 b43_read32(struct b43_wldev *dev, u16 offset)
{
return ssb_read32(dev->dev, offset);
}
static inline void b43_write32(struct b43_wldev *dev, u16 offset, u32 value)
{
ssb_write32(dev->dev, offset, value);
}
static inline bool b43_using_pio_transfers(struct b43_wldev *dev)
{
#ifdef CONFIG_B43_PIO
return dev->__using_pio_transfers;
#else
return 0;
#endif
}
#ifdef CONFIG_B43_FORCE_PIO
# define B43_FORCE_PIO 1
#else
# define B43_FORCE_PIO 0
#endif
/* Message printing */
void b43info(struct b43_wl *wl, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
void b43err(struct b43_wl *wl, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
void b43warn(struct b43_wl *wl, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
#if B43_DEBUG
void b43dbg(struct b43_wl *wl, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
#else /* DEBUG */
# define b43dbg(wl, fmt...) do { /* nothing */ } while (0)
#endif /* DEBUG */
/* A WARN_ON variant that vanishes when b43 debugging is disabled.
* This _also_ evaluates the arg with debugging disabled. */
#if B43_DEBUG
# define B43_WARN_ON(x) WARN_ON(x)
#else
static inline bool __b43_warn_on_dummy(bool x) { return x; }
# define B43_WARN_ON(x) __b43_warn_on_dummy(unlikely(!!(x)))
#endif
/** 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; \
})
/* Convert an integer to a Q5.2 value */
#define INT_TO_Q52(i) ((i) << 2)
/* Convert a Q5.2 value to an integer (precision loss!) */
#define Q52_TO_INT(q52) ((q52) >> 2)
/* Macros for printing a value in Q5.2 format */
#define Q52_FMT "%u.%u"
#define Q52_ARG(q52) Q52_TO_INT(q52), ((((q52) & 0x3) * 100) / 4)
#endif /* B43_H_ */
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