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linux/drivers/net/wireless/wavelan_cs.h
Al Viro ea995abfed wavelan_cs arm fix 
Even when all fields are unsigned char, struct still might have
alignment > 1.  Does so on arm, unless you explicitly say that
it's packed...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-24 19:25:07 -04:00

387 lines
17 KiB
C
Raw Blame History

/*
* Wavelan Pcmcia driver
*
* Jean II - HPLB '96
*
* Reorganization and extension of the driver.
* Original copyright follow. See wavelan_cs.h for details.
*
* This file contain the declarations of the Wavelan hardware. Note that
* the Pcmcia Wavelan include a i82593 controller (see definitions in
* file i82593.h).
*
* The main difference between the pcmcia hardware and the ISA one is
* the Ethernet Controller (i82593 instead of i82586). The i82593 allow
* only one send buffer. The PSA (Parameter Storage Area : EEprom for
* permanent storage of various info) is memory mapped, but not the
* MMI (Modem Management Interface).
*/
/*
* Definitions for the AT&T GIS (formerly NCR) WaveLAN PCMCIA card:
* An Ethernet-like radio transceiver controlled by an Intel 82593
* coprocessor.
*
*
****************************************************************************
* Copyright 1995
* Anthony D. Joseph
* Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this program
* for any purpose and without fee is hereby granted, provided
* that this copyright and permission notice appear on all copies
* and supporting documentation, the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* program without specific prior permission, and notice be given
* in supporting documentation that copying and distribution is
* by permission of M.I.T. M.I.T. makes no representations about
* the suitability of this software for any purpose. It is pro-
* vided "as is" without express or implied warranty.
****************************************************************************
*
*
* Credits:
* Special thanks to Jan Hoogendoorn of AT&T GIS Utrecht for
* providing extremely useful information about WaveLAN PCMCIA hardware
*
* This driver is based upon several other drivers, in particular:
* David Hinds' Linux driver for the PCMCIA 3c589 ethernet adapter
* Bruce Janson's Linux driver for the AT-bus WaveLAN adapter
* Anders Klemets' PCMCIA WaveLAN adapter driver
* Robert Morris' BSDI driver for the PCMCIA WaveLAN adapter
*/
#ifndef _WAVELAN_CS_H
#define _WAVELAN_CS_H
/************************** MAGIC NUMBERS ***************************/
/* The detection of the wavelan card is made by reading the MAC address
* from the card and checking it. If you have a non AT&T product (OEM,
* like DEC RoamAbout, or Digital Ocean, Epson, ...), you must modify this
* part to accommodate your hardware...
*/
static const unsigned char MAC_ADDRESSES[][3] =
{
{ 0x08, 0x00, 0x0E }, /* AT&T Wavelan (standard) & DEC RoamAbout */
{ 0x08, 0x00, 0x6A }, /* AT&T Wavelan (alternate) */
{ 0x00, 0x00, 0xE1 }, /* Hitachi Wavelan */
{ 0x00, 0x60, 0x1D } /* Lucent Wavelan (another one) */
/* Add your card here and send me the patch ! */
};
/*
* Constants used to convert channels to frequencies
*/
/* Frequency available in the 2.0 modem, in units of 250 kHz
* (as read in the offset register of the dac area).
* Used to map channel numbers used by `wfreqsel' to frequencies
*/
static const short channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8,
0xD0, 0xF0, 0xF8, 0x150 };
/* Frequencies of the 1.0 modem (fixed frequencies).
* Use to map the PSA `subband' to a frequency
* Note : all frequencies apart from the first one need to be multiplied by 10
*/
static const int fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 };
/*************************** PC INTERFACE ****************************/
/* WaveLAN host interface definitions */
#define LCCR(base) (base) /* LAN Controller Command Register */
#define LCSR(base) (base) /* LAN Controller Status Register */
#define HACR(base) (base+0x1) /* Host Adapter Command Register */
#define HASR(base) (base+0x1) /* Host Adapter Status Register */
#define PIORL(base) (base+0x2) /* Program I/O Register Low */
#define RPLL(base) (base+0x2) /* Receive Pointer Latched Low */
#define PIORH(base) (base+0x3) /* Program I/O Register High */
#define RPLH(base) (base+0x3) /* Receive Pointer Latched High */
#define PIOP(base) (base+0x4) /* Program I/O Port */
#define MMR(base) (base+0x6) /* MMI Address Register */
#define MMD(base) (base+0x7) /* MMI Data Register */
/* Host Adaptor Command Register bit definitions */
#define HACR_LOF (1 << 3) /* Lock Out Flag, toggle every 250ms */
#define HACR_PWR_STAT (1 << 4) /* Power State, 1=active, 0=sleep */
#define HACR_TX_DMA_RESET (1 << 5) /* Reset transmit DMA ptr on high */
#define HACR_RX_DMA_RESET (1 << 6) /* Reset receive DMA ptr on high */
#define HACR_ROM_WEN (1 << 7) /* EEPROM write enabled when true */
#define HACR_RESET (HACR_TX_DMA_RESET | HACR_RX_DMA_RESET)
#define HACR_DEFAULT (HACR_PWR_STAT)
/* Host Adapter Status Register bit definitions */
#define HASR_MMI_BUSY (1 << 2) /* MMI is busy when true */
#define HASR_LOF (1 << 3) /* Lock out flag status */
#define HASR_NO_CLK (1 << 4) /* active when modem not connected */
/* Miscellaneous bit definitions */
#define PIORH_SEL_TX (1 << 5) /* PIOR points to 0=rx/1=tx buffer */
#define MMR_MMI_WR (1 << 0) /* Next MMI cycle is 0=read, 1=write */
#define PIORH_MASK 0x1f /* only low 5 bits are significant */
#define RPLH_MASK 0x1f /* only low 5 bits are significant */
#define MMI_ADDR_MASK 0x7e /* Bits 1-6 of MMR are significant */
/* Attribute Memory map */
#define CIS_ADDR 0x0000 /* Card Information Status Register */
#define PSA_ADDR 0x0e00 /* Parameter Storage Area address */
#define EEPROM_ADDR 0x1000 /* EEPROM address (unused ?) */
#define COR_ADDR 0x4000 /* Configuration Option Register */
/* Configuration Option Register bit definitions */
#define COR_CONFIG (1 << 0) /* Config Index, 0 when unconfigured */
#define COR_SW_RESET (1 << 7) /* Software Reset on true */
#define COR_LEVEL_IRQ (1 << 6) /* Level IRQ */
/* Local Memory map */
#define RX_BASE 0x0000 /* Receive memory, 8 kB */
#define TX_BASE 0x2000 /* Transmit memory, 2 kB */
#define UNUSED_BASE 0x2800 /* Unused, 22 kB */
#define RX_SIZE (TX_BASE-RX_BASE) /* Size of receive area */
#define RX_SIZE_SHIFT 6 /* Bits to shift in stop register */
#define TRUE 1
#define FALSE 0
#define MOD_ENAL 1
#define MOD_PROM 2
/* Size of a MAC address */
#define WAVELAN_ADDR_SIZE 6
/* Maximum size of Wavelan packet */
#define WAVELAN_MTU 1500
#define MAXDATAZ (6 + 6 + 2 + WAVELAN_MTU)
/********************** PARAMETER STORAGE AREA **********************/
/*
* Parameter Storage Area (PSA).
*/
typedef struct psa_t psa_t;
struct psa_t
{
/* For the PCMCIA Adapter, locations 0x00-0x0F are unused and fixed at 00 */
unsigned char psa_io_base_addr_1; /* [0x00] Base address 1 ??? */
unsigned char psa_io_base_addr_2; /* [0x01] Base address 2 */
unsigned char psa_io_base_addr_3; /* [0x02] Base address 3 */
unsigned char psa_io_base_addr_4; /* [0x03] Base address 4 */
unsigned char psa_rem_boot_addr_1; /* [0x04] Remote Boot Address 1 */
unsigned char psa_rem_boot_addr_2; /* [0x05] Remote Boot Address 2 */
unsigned char psa_rem_boot_addr_3; /* [0x06] Remote Boot Address 3 */
unsigned char psa_holi_params; /* [0x07] HOst Lan Interface (HOLI) Parameters */
unsigned char psa_int_req_no; /* [0x08] Interrupt Request Line */
unsigned char psa_unused0[7]; /* [0x09-0x0F] unused */
unsigned char psa_univ_mac_addr[WAVELAN_ADDR_SIZE]; /* [0x10-0x15] Universal (factory) MAC Address */
unsigned char psa_local_mac_addr[WAVELAN_ADDR_SIZE]; /* [0x16-1B] Local MAC Address */
unsigned char psa_univ_local_sel; /* [0x1C] Universal Local Selection */
#define PSA_UNIVERSAL 0 /* Universal (factory) */
#define PSA_LOCAL 1 /* Local */
unsigned char psa_comp_number; /* [0x1D] Compatability Number: */
#define PSA_COMP_PC_AT_915 0 /* PC-AT 915 MHz */
#define PSA_COMP_PC_MC_915 1 /* PC-MC 915 MHz */
#define PSA_COMP_PC_AT_2400 2 /* PC-AT 2.4 GHz */
#define PSA_COMP_PC_MC_2400 3 /* PC-MC 2.4 GHz */
#define PSA_COMP_PCMCIA_915 4 /* PCMCIA 915 MHz or 2.0 */
unsigned char psa_thr_pre_set; /* [0x1E] Modem Threshold Preset */
unsigned char psa_feature_select; /* [0x1F] Call code required (1=on) */
#define PSA_FEATURE_CALL_CODE 0x01 /* Call code required (Japan) */
unsigned char psa_subband; /* [0x20] Subband */
#define PSA_SUBBAND_915 0 /* 915 MHz or 2.0 */
#define PSA_SUBBAND_2425 1 /* 2425 MHz */
#define PSA_SUBBAND_2460 2 /* 2460 MHz */
#define PSA_SUBBAND_2484 3 /* 2484 MHz */
#define PSA_SUBBAND_2430_5 4 /* 2430.5 MHz */
unsigned char psa_quality_thr; /* [0x21] Modem Quality Threshold */
unsigned char psa_mod_delay; /* [0x22] Modem Delay ??? (reserved) */
unsigned char psa_nwid[2]; /* [0x23-0x24] Network ID */
unsigned char psa_nwid_select; /* [0x25] Network ID Select On Off */
unsigned char psa_encryption_select; /* [0x26] Encryption On Off */
unsigned char psa_encryption_key[8]; /* [0x27-0x2E] Encryption Key */
unsigned char psa_databus_width; /* [0x2F] AT bus width select 8/16 */
unsigned char psa_call_code[8]; /* [0x30-0x37] (Japan) Call Code */
unsigned char psa_nwid_prefix[2]; /* [0x38-0x39] Roaming domain */
unsigned char psa_reserved[2]; /* [0x3A-0x3B] Reserved - fixed 00 */
unsigned char psa_conf_status; /* [0x3C] Conf Status, bit 0=1:config*/
unsigned char psa_crc[2]; /* [0x3D] CRC-16 over PSA */
unsigned char psa_crc_status; /* [0x3F] CRC Valid Flag */
};
/* Size for structure checking (if padding is correct) */
#define PSA_SIZE 64
/* Calculate offset of a field in the above structure
* Warning : only even addresses are used */
#define psaoff(p,f) ((unsigned short) ((void *)(&((psa_t *) ((void *) NULL + (p)))->f) - (void *) NULL))
/******************** MODEM MANAGEMENT INTERFACE ********************/
/*
* Modem Management Controller (MMC) write structure.
*/
typedef struct mmw_t mmw_t;
struct mmw_t
{
unsigned char mmw_encr_key[8]; /* encryption key */
unsigned char mmw_encr_enable; /* enable/disable encryption */
#define MMW_ENCR_ENABLE_MODE 0x02 /* Mode of security option */
#define MMW_ENCR_ENABLE_EN 0x01 /* Enable security option */
unsigned char mmw_unused0[1]; /* unused */
unsigned char mmw_des_io_invert; /* Encryption option */
#define MMW_DES_IO_INVERT_RES 0x0F /* Reserved */
#define MMW_DES_IO_INVERT_CTRL 0xF0 /* Control ??? (set to 0) */
unsigned char mmw_unused1[5]; /* unused */
unsigned char mmw_loopt_sel; /* looptest selection */
#define MMW_LOOPT_SEL_DIS_NWID 0x40 /* disable NWID filtering */
#define MMW_LOOPT_SEL_INT 0x20 /* activate Attention Request */
#define MMW_LOOPT_SEL_LS 0x10 /* looptest w/o collision avoidance */
#define MMW_LOOPT_SEL_LT3A 0x08 /* looptest 3a */
#define MMW_LOOPT_SEL_LT3B 0x04 /* looptest 3b */
#define MMW_LOOPT_SEL_LT3C 0x02 /* looptest 3c */
#define MMW_LOOPT_SEL_LT3D 0x01 /* looptest 3d */
unsigned char mmw_jabber_enable; /* jabber timer enable */
/* Abort transmissions > 200 ms */
unsigned char mmw_freeze; /* freeze / unfreeeze signal level */
/* 0 : signal level & qual updated for every new message, 1 : frozen */
unsigned char mmw_anten_sel; /* antenna selection */
#define MMW_ANTEN_SEL_SEL 0x01 /* direct antenna selection */
#define MMW_ANTEN_SEL_ALG_EN 0x02 /* antenna selection algo. enable */
unsigned char mmw_ifs; /* inter frame spacing */
/* min time between transmission in bit periods (.5 us) - bit 0 ignored */
unsigned char mmw_mod_delay; /* modem delay (synchro) */
unsigned char mmw_jam_time; /* jamming time (after collision) */
unsigned char mmw_unused2[1]; /* unused */
unsigned char mmw_thr_pre_set; /* level threshold preset */
/* Discard all packet with signal < this value (4) */
unsigned char mmw_decay_prm; /* decay parameters */
unsigned char mmw_decay_updat_prm; /* decay update parameterz */
unsigned char mmw_quality_thr; /* quality (z-quotient) threshold */
/* Discard all packet with quality < this value (3) */
unsigned char mmw_netw_id_l; /* NWID low order byte */
unsigned char mmw_netw_id_h; /* NWID high order byte */
/* Network ID or Domain : create virtual net on the air */
/* 2.0 Hardware extension - frequency selection support */
unsigned char mmw_mode_select; /* for analog tests (set to 0) */
unsigned char mmw_unused3[1]; /* unused */
unsigned char mmw_fee_ctrl; /* frequency eeprom control */
#define MMW_FEE_CTRL_PRE 0x10 /* Enable protected instructions */
#define MMW_FEE_CTRL_DWLD 0x08 /* Download eeprom to mmc */
#define MMW_FEE_CTRL_CMD 0x07 /* EEprom commands : */
#define MMW_FEE_CTRL_READ 0x06 /* Read */
#define MMW_FEE_CTRL_WREN 0x04 /* Write enable */
#define MMW_FEE_CTRL_WRITE 0x05 /* Write data to address */
#define MMW_FEE_CTRL_WRALL 0x04 /* Write data to all addresses */
#define MMW_FEE_CTRL_WDS 0x04 /* Write disable */
#define MMW_FEE_CTRL_PRREAD 0x16 /* Read addr from protect register */
#define MMW_FEE_CTRL_PREN 0x14 /* Protect register enable */
#define MMW_FEE_CTRL_PRCLEAR 0x17 /* Unprotect all registers */
#define MMW_FEE_CTRL_PRWRITE 0x15 /* Write addr in protect register */
#define MMW_FEE_CTRL_PRDS 0x14 /* Protect register disable */
/* Never issue this command (PRDS) : it's irreversible !!! */
unsigned char mmw_fee_addr; /* EEprom address */
#define MMW_FEE_ADDR_CHANNEL 0xF0 /* Select the channel */
#define MMW_FEE_ADDR_OFFSET 0x0F /* Offset in channel data */
#define MMW_FEE_ADDR_EN 0xC0 /* FEE_CTRL enable operations */
#define MMW_FEE_ADDR_DS 0x00 /* FEE_CTRL disable operations */
#define MMW_FEE_ADDR_ALL 0x40 /* FEE_CTRL all operations */
#define MMW_FEE_ADDR_CLEAR 0xFF /* FEE_CTRL clear operations */
unsigned char mmw_fee_data_l; /* Write data to EEprom */
unsigned char mmw_fee_data_h; /* high octet */
unsigned char mmw_ext_ant; /* Setting for external antenna */
#define MMW_EXT_ANT_EXTANT 0x01 /* Select external antenna */
#define MMW_EXT_ANT_POL 0x02 /* Polarity of the antenna */
#define MMW_EXT_ANT_INTERNAL 0x00 /* Internal antenna */
#define MMW_EXT_ANT_EXTERNAL 0x03 /* External antenna */
#define MMW_EXT_ANT_IQ_TEST 0x1C /* IQ test pattern (set to 0) */
} __attribute__((packed));
/* Size for structure checking (if padding is correct) */
#define MMW_SIZE 37
/* Calculate offset of a field in the above structure */
#define mmwoff(p,f) (unsigned short)((void *)(&((mmw_t *)((void *)0 + (p)))->f) - (void *)0)
/*
* Modem Management Controller (MMC) read structure.
*/
typedef struct mmr_t mmr_t;
struct mmr_t
{
unsigned char mmr_unused0[8]; /* unused */
unsigned char mmr_des_status; /* encryption status */
unsigned char mmr_des_avail; /* encryption available (0x55 read) */
#define MMR_DES_AVAIL_DES 0x55 /* DES available */
#define MMR_DES_AVAIL_AES 0x33 /* AES (AT&T) available */
unsigned char mmr_des_io_invert; /* des I/O invert register */
unsigned char mmr_unused1[5]; /* unused */
unsigned char mmr_dce_status; /* DCE status */
#define MMR_DCE_STATUS_RX_BUSY 0x01 /* receiver busy */
#define MMR_DCE_STATUS_LOOPT_IND 0x02 /* loop test indicated */
#define MMR_DCE_STATUS_TX_BUSY 0x04 /* transmitter on */
#define MMR_DCE_STATUS_JBR_EXPIRED 0x08 /* jabber timer expired */
#define MMR_DCE_STATUS 0x0F /* mask to get the bits */
unsigned char mmr_dsp_id; /* DSP id (AA = Daedalus rev A) */
unsigned char mmr_unused2[2]; /* unused */
unsigned char mmr_correct_nwid_l; /* # of correct NWID's rxd (low) */
unsigned char mmr_correct_nwid_h; /* # of correct NWID's rxd (high) */
/* Warning : Read high order octet first !!! */
unsigned char mmr_wrong_nwid_l; /* # of wrong NWID's rxd (low) */
unsigned char mmr_wrong_nwid_h; /* # of wrong NWID's rxd (high) */
unsigned char mmr_thr_pre_set; /* level threshold preset */
#define MMR_THR_PRE_SET 0x3F /* level threshold preset */
#define MMR_THR_PRE_SET_CUR 0x80 /* Current signal above it */
unsigned char mmr_signal_lvl; /* signal level */
#define MMR_SIGNAL_LVL 0x3F /* signal level */
#define MMR_SIGNAL_LVL_VALID 0x80 /* Updated since last read */
unsigned char mmr_silence_lvl; /* silence level (noise) */
#define MMR_SILENCE_LVL 0x3F /* silence level */
#define MMR_SILENCE_LVL_VALID 0x80 /* Updated since last read */
unsigned char mmr_sgnl_qual; /* signal quality */
#define MMR_SGNL_QUAL 0x0F /* signal quality */
#define MMR_SGNL_QUAL_ANT 0x80 /* current antenna used */
unsigned char mmr_netw_id_l; /* NWID low order byte ??? */
unsigned char mmr_unused3[3]; /* unused */
/* 2.0 Hardware extension - frequency selection support */
unsigned char mmr_fee_status; /* Status of frequency eeprom */
#define MMR_FEE_STATUS_ID 0xF0 /* Modem revision id */
#define MMR_FEE_STATUS_DWLD 0x08 /* Download in progress */
#define MMR_FEE_STATUS_BUSY 0x04 /* EEprom busy */
unsigned char mmr_unused4[1]; /* unused */
unsigned char mmr_fee_data_l; /* Read data from eeprom (low) */
unsigned char mmr_fee_data_h; /* Read data from eeprom (high) */
};
/* Size for structure checking (if padding is correct) */
#define MMR_SIZE 36
/* Calculate offset of a field in the above structure */
#define mmroff(p,f) (unsigned short)((void *)(&((mmr_t *)((void *)0 + (p)))->f) - (void *)0)
/* Make the two above structures one */
typedef union mm_t
{
struct mmw_t w; /* Write to the mmc */
struct mmr_t r; /* Read from the mmc */
} mm_t;
#endif /* _WAVELAN_CS_H */
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