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/*-
* Generic register and struct definitions for the BusLogic
* MultiMaster SCSI host adapters. Product specific probe and
* attach routines can be found in:
* sys/dev/buslogic/bt_isa.c BT-54X, BT-445 cards
* sys/dev/buslogic/bt_mca.c BT-64X, SDC3211B, SDC3211F
* sys/dev/buslogic/bt_eisa.c BT-74X, BT-75x cards, SDC3222F
* sys/dev/buslogic/bt_pci.c BT-946, BT-948, BT-956, BT-958 cards
*
* Copyright (c) 1998, 1999 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/dev/buslogic/btreg.h 139749 2005-01-06 01:43:34Z imp $
*/
#ifndef _BTREG_H_
#define _BTREG_H_
#include <sys/queue.h>
#define BT_MAXTRANSFER_SIZE 0xffffffff /* limited by 32bit counter */
#define BT_NSEG 32 /* The number of dma segments supported.
* BT_NSEG can be maxed out at 8192 entries,
* but the kernel will never need to transfer
* such a large request. To reduce the
* driver's memory consumption, we reduce the
* max to 32. 16 would work if all transfers
* are paged alined since the kernel will only
* generate at most a 64k transfer, but to
* handle non-page aligned transfers, you need
* 17, so we round to the next power of two
* to make allocating SG space easy and
* efficient.
*/
#define ALL_TARGETS (~0)
/*
* Control Register pp. 1-8, 1-9 (Write Only)
*/
#define CONTROL_REG 0x00
#define HARD_RESET 0x80 /* Hard Reset - return to POST state */
#define SOFT_RESET 0x40 /* Soft Reset - Clears Adapter state */
#define RESET_INTR 0x20 /* Reset/Ack Interrupt */
#define RESET_SBUS 0x10 /* Drive SCSI bus reset signal */
/*
* Status Register pp. 1-9, 1-10 (Read Only)
*/
#define STATUS_REG 0x00
#define DIAG_ACTIVE 0x80 /* Performing Internal Diags */
#define DIAG_FAIL 0x40 /* Internal Diags failed */
#define INIT_REQUIRED 0x20 /* MBOXes need initialization */
#define HA_READY 0x10 /* HA ready for new commands */
#define CMD_REG_BUSY 0x08 /* HA busy with last cmd byte */
#define DATAIN_REG_READY 0x04 /* Data-in Byte available */
#define STATUS_REG_RSVD 0x02
#define CMD_INVALID 0x01 /* Invalid Command detected */
/*
* Command/Parameter Register pp. 1-10, 1-11 (Write Only)
*/
#define COMMAND_REG 0x01
/*
* Data in Register p. 1-11 (Read Only)
*/
#define DATAIN_REG 0x01
/*
* Interrupt Status Register pp. 1-12 -> 1-14 (Read Only)
*/
#define INTSTAT_REG 0x02
#define INTR_PENDING 0x80 /* There is a pending INTR */
#define INTSTAT_REG_RSVD 0x70
#define SCSI_BUS_RESET 0x08 /* Bus Reset detected */
#define CMD_COMPLETE 0x04
#define OMB_READY 0x02 /* Outgoin Mailbox Ready */
#define IMB_LOADED 0x01 /* Incoming Mailbox loaded */
/*
* Definitions for the "undocumented" geometry register
*/
typedef enum {
GEOM_NODISK,
GEOM_64x32,
GEOM_128x32,
GEOM_255x32
} disk_geom_t;
#define GEOMETRY_REG 0x03
#define DISK0_GEOMETRY 0x03
#define DISK1_GEOMETRY 0x0c
#define EXTENDED_TRANSLATION 0x80
#define GEOMETRY_DISK0(g_reg) (greg & DISK0_GEOMETRY)
#define GEOMETRY_DISK1(g_reg) ((greg & DISK1_GEOMETRY) >> 2)
#define BT_NREGS (4)
/*
* Opcodes for Adapter commands.
* pp 1-18 -> 1-20
*/
typedef enum {
BOP_TEST_CMDC_INTR = 0x00,
BOP_INITIALIZE_24BMBOX = 0x01,
BOP_START_MBOX = 0x02,
BOP_EXECUTE_BIOS_CMD = 0x03,
BOP_INQUIRE_BOARD_ID = 0x04,
BOP_ENABLE_OMBR_INT = 0x05,
BOP_SET_SEL_TIMOUT = 0x06,
BOP_SET_TIME_ON_BUS = 0x07,
BOP_SET_TIME_OFF_BUS = 0x08,
BOP_SET_BUS_TRANS_RATE = 0x09,
BOP_INQUIRE_INST_LDEVS = 0x0A,
BOP_INQUIRE_CONFIG = 0x0B,
BOP_ENABLE_TARGET_MODE = 0x0C,
BOP_INQUIRE_SETUP_INFO = 0x0D,
BOP_WRITE_LRAM = 0x1A,
BOP_READ_LRAM = 0x1B,
BOP_WRITE_CHIP_FIFO = 0x1C,
BOP_READ_CHIP_FIFO = 0x1C,
BOP_ECHO_DATA_BYTE = 0x1F,
BOP_ADAPTER_DIAGNOSTICS = 0x20,
BOP_SET_ADAPTER_OPTIONS = 0x21,
BOP_INQUIRE_INST_HDEVS = 0x23,
BOP_INQUIRE_TARG_DEVS = 0x24,
BOP_DISABLE_HAC_INTR = 0x25,
BOP_INITIALIZE_32BMBOX = 0x81,
BOP_EXECUTE_SCSI_CMD = 0x83,
BOP_INQUIRE_FW_VER_3DIG = 0x84,
BOP_INQUIRE_FW_VER_4DIG = 0x85,
BOP_INQUIRE_PCI_INFO = 0x86,
BOP_INQUIRE_MODEL = 0x8B,
BOP_TARG_SYNC_INFO = 0x8C,
BOP_INQUIRE_ESETUP_INFO = 0x8D,
BOP_ENABLE_STRICT_RR = 0x8F,
BOP_STORE_LRAM = 0x90,
BOP_FETCH_LRAM = 0x91,
BOP_SAVE_TO_EEPROM = 0x92,
BOP_UPLOAD_AUTO_SCSI = 0x94,
BOP_MODIFY_IO_ADDR = 0x95,
BOP_SET_CCB_FORMAT = 0x96,
BOP_FLASH_ROM_DOWNLOAD = 0x97,
BOP_FLASH_WRITE_ENABLE = 0x98,
BOP_WRITE_INQ_BUFFER = 0x9A,
BOP_READ_INQ_BUFFER = 0x9B,
BOP_FLASH_UP_DOWNLOAD = 0xA7,
BOP_READ_SCAM_DATA = 0xA8,
BOP_WRITE_SCAM_DATA = 0xA9
} bt_op_t;
/************** Definitions of Multi-byte commands and responses ************/
typedef struct {
u_int8_t num_mboxes;
u_int8_t base_addr[3];
} init_24b_mbox_params_t;
typedef struct {
u_int8_t board_type;
#define BOARD_TYPE_NON_MCA 0x41
#define BOARD_TYPE_MCA 0x42
u_int8_t cust_features;
#define FEATURES_STANDARD 0x41
u_int8_t firmware_rev_major;
u_int8_t firmware_rev_minor;
} board_id_data_t;
typedef struct {
u_int8_t enable;
} enable_ombr_intr_params_t;
typedef struct {
u_int8_t enable;
u_int8_t reserved;
u_int8_t timeout[2]; /* timeout in milliseconds */
} set_selto_parmas_t;
typedef struct {
u_int8_t time; /* time in milliseconds (2-15) */
} set_timeon_bus_params_t;
typedef struct {
u_int8_t time; /* time in milliseconds (2-15) */
} set_timeoff_bus_params_t;
typedef struct {
u_int8_t rate;
} set_bus_trasfer_rate_params_t;
typedef struct {
u_int8_t targets[8];
} installed_ldevs_data_t;
typedef struct {
u_int8_t dma_chan;
#define DMA_CHAN_5 0x20
#define DMA_CHAN_6 0x40
#define DMA_CHAN_7 0x80
u_int8_t irq;
#define IRQ_9 0x01
#define IRQ_10 0x02
#define IRQ_11 0x04
#define IRQ_12 0x08
#define IRQ_14 0x20
#define IRQ_15 0x40
u_int8_t scsi_id;
} config_data_t;
typedef struct {
u_int8_t enable;
} target_mode_params_t;
typedef struct {
u_int8_t offset : 4,
period : 3,
sync : 1;
} targ_syncinfo_t;
typedef enum {
HAB_ISA = 'A',
HAB_MCA = 'B',
HAB_EISA = 'C',
HAB_NUBUS = 'D',
HAB_VESA = 'E',
HAB_PCI = 'F'
} ha_type_t;
typedef struct {
u_int8_t initiate_sync : 1,
parity_enable : 1,
: 6;
u_int8_t bus_transfer_rate;
u_int8_t time_on_bus;
u_int8_t time_off_bus;
u_int8_t num_mboxes;
u_int8_t mbox_base_addr[3];
targ_syncinfo_t low_syncinfo[8]; /* For fast and ultra, use 8C */
u_int8_t low_discinfo;
u_int8_t customer_sig;
u_int8_t letter_d;
u_int8_t ha_type;
u_int8_t low_wide_allowed;
u_int8_t low_wide_active;
targ_syncinfo_t high_syncinfo[8];
u_int8_t high_discinfo;
u_int8_t high_wide_allowed;
u_int8_t high_wide_active;
} setup_data_t;
typedef struct {
u_int8_t phys_addr[3];
} write_adapter_lram_params_t;
typedef struct {
u_int8_t phys_addr[3];
} read_adapter_lram_params_t;
typedef struct {
u_int8_t phys_addr[3];
} write_chip_fifo_params_t;
typedef struct {
u_int8_t phys_addr[3];
} read_chip_fifo_params_t;
typedef struct {
u_int8_t length; /* Excludes this member */
u_int8_t low_disc_disable;
u_int8_t low_busy_retry_disable;
u_int8_t high_disc_disable;
u_int8_t high_busy_retry_disable;
} set_adapter_options_params_t;
typedef struct {
u_int8_t targets[8];
} installed_hdevs_data_t;
typedef struct {
u_int8_t low_devs;
u_int8_t high_devs;
} target_devs_data_t;
typedef struct {
u_int8_t enable;
} enable_hac_interrupt_params_t;
typedef struct {
u_int8_t num_boxes;
u_int8_t base_addr[4];
} init_32b_mbox_params_t;
typedef u_int8_t fw_ver_3dig_data_t;
typedef u_int8_t fw_ver_4dig_data_t;
typedef struct {
u_int8_t offset;
u_int8_t response_len;
} fetch_lram_params_t;
#define AUTO_SCSI_BYTE_OFFSET 64
typedef struct {
u_int8_t factory_sig[2];
u_int8_t auto_scsi_data_size; /* 2 -> 64 bytes */
u_int8_t model_num[6];
u_int8_t adapter_ioport;
u_int8_t floppy_enabled :1,
floppy_secondary :1,
level_trigger :1,
:2,
system_ram_area :3;
u_int8_t dma_channel :7,
dma_autoconf :1;
u_int8_t irq_channel :7,
irq_autoconf :1;
u_int8_t dma_trans_rate;
u_int8_t scsi_id;
u_int8_t low_termination :1,
scsi_parity :1,
high_termination :1,
req_ack_filter :1,
fast_sync :1,
bus_reset :1,
:1,
active_negation :1;
u_int8_t bus_on_delay;
u_int8_t bus_off_delay;
u_int8_t bios_enabled :1,
int19h_redirect :1,
extended_trans :1,
removable_drives :1,
:1,
morethan2disks :1,
interrupt_mode :1,
floptical_support:1;
u_int8_t low_device_enabled;
u_int8_t high_device_enabled;
u_int8_t low_wide_permitted;
u_int8_t high_wide_permitted;
u_int8_t low_fast_permitted;
u_int8_t high_fast_permitted;
u_int8_t low_sync_permitted;
u_int8_t high_sync_permitted;
u_int8_t low_disc_permitted;
u_int8_t high_disc_permitted;
u_int8_t low_send_start_unit;
u_int8_t high_send_start_unit;
u_int8_t low_ignore_in_bios_scan;
u_int8_t high_ignore_in_bios_scan;
u_int8_t pci_int_pin :2,
host_ioport :2,
round_robin :1,
vesa_bus_over_33 :1,
vesa_burst_write :1,
vesa_burst_read :1;
u_int8_t low_ultra_permitted;
u_int8_t high_ultra_permitted;
u_int8_t reserved[5];
u_int8_t auto_scsi_max_lun;
u_int8_t :1,
scam_dominant :1,
scam_enabled :1,
scam_level2 :1,
:4;
u_int8_t int13_extensions :1,
:1,
cdrom_boot :1,
:2,
multi_boot :1,
:2;
u_int8_t boot_target_id :4,
boot_channel :4;
u_int8_t force_dev_scan :1,
:7;
u_int8_t low_tagged_lun_independance;
u_int8_t high_tagged_lun_independance;
u_int8_t low_renegotiate_after_cc;
u_int8_t high_renegotiate_after_cc;
u_int8_t reserverd2[10];
u_int8_t manufacturing_diagnotic[2];
u_int8_t checksum[2];
} auto_scsi_data_t;
struct bt_isa_port {
u_int16_t addr;
u_int8_t probed;
u_int8_t bio;
};
extern struct bt_isa_port bt_isa_ports[];
#define BT_NUM_ISAPORTS 6
typedef enum {
BIO_330 = 0,
BIO_334 = 1,
BIO_230 = 2,
BIO_234 = 3,
BIO_130 = 4,
BIO_134 = 5,
BIO_DISABLED = 6,
BIO_DISABLED2 = 7
} isa_compat_io_t;
typedef struct {
u_int8_t io_port;
u_int8_t irq_num;
u_int8_t low_byte_term :1,
high_byte_term :1,
:2,
jp1_status :1,
jp2_status :1,
jp3_status :1,
:1;
u_int8_t reserved;
} pci_info_data_t;
typedef struct {
u_int8_t ascii_model[5]; /* Fifth byte is always 0 */
} ha_model_data_t;
typedef struct {
u_int8_t sync_rate[16]; /* Sync in 10ns units */
} target_sync_info_data_t;
typedef struct {
u_int8_t bus_type;
u_int8_t bios_addr;
u_int16_t max_sg;
u_int8_t num_mboxes;
u_int8_t mbox_base[4];
u_int8_t :2,
sync_neg10MB :1,
floppy_disable :1,
floppy_secondary_port :1,
burst_mode_enabled :1,
level_trigger_ints :1,
:1;
u_int8_t fw_ver_bytes_2_to_4[3];
u_int8_t wide_bus :1,
diff_bus :1,
scam_capable :1,
ultra_scsi :1,
auto_term :1,
:3;
} esetup_info_data_t;
typedef struct {
u_int32_t len;
u_int32_t addr;
} bt_sg_t;
/********************** Mail Box definitions *******************************/
typedef enum {
BMBO_FREE = 0x0, /* MBO intry is free */
BMBO_START = 0x1, /* MBO activate entry */
BMBO_ABORT = 0x2 /* MBO abort entry */
} bt_mbo_action_code_t;
typedef struct bt_mbox_out {
u_int32_t ccb_addr;
u_int8_t reserved[3];
u_int8_t action_code;
} bt_mbox_out_t;
typedef enum {
BMBI_FREE = 0x0, /* MBI entry is free */
BMBI_OK = 0x1, /* completed without error */
BMBI_ABORT = 0x2, /* aborted ccb */
BMBI_NOT_FOUND = 0x3, /* Tried to abort invalid CCB */
BMBI_ERROR = 0x4 /* Completed with error */
} bt_mbi_comp_code_t;
typedef struct bt_mbox_in {
u_int32_t ccb_addr;
u_int8_t btstat;
u_int8_t sdstat;
u_int8_t reserved;
u_int8_t comp_code;
} bt_mbox_in_t;
/***************** Compiled Probe Information *******************************/
struct bt_probe_info {
int drq;
int irq;
};
/****************** Hardware CCB definition *********************************/
typedef enum {
INITIATOR_CCB = 0x00,
INITIATOR_SG_CCB = 0x02,
INITIATOR_CCB_WRESID = 0x03,
INITIATOR_SG_CCB_WRESID = 0x04,
INITIATOR_BUS_DEV_RESET = 0x81
} bt_ccb_opcode_t;
typedef enum {
BTSTAT_NOERROR = 0x00,
BTSTAT_LINKED_CMD_COMPLETE = 0x0A,
BTSTAT_LINKED_CMD_FLAG_COMPLETE = 0x0B,
BTSTAT_DATAUNDERUN_ERROR = 0x0C,
BTSTAT_SELTIMEOUT = 0x11,
BTSTAT_DATARUN_ERROR = 0x12,
BTSTAT_UNEXPECTED_BUSFREE = 0x13,
BTSTAT_INVALID_PHASE = 0x14,
BTSTAT_INVALID_ACTION_CODE = 0x15,
BTSTAT_INVALID_OPCODE = 0x16,
BTSTAT_LINKED_CCB_LUN_MISMATCH = 0x17,
BTSTAT_INVALID_CCB_OR_SG_PARAM = 0x1A,
BTSTAT_AUTOSENSE_FAILED = 0x1B,
BTSTAT_TAGGED_MSG_REJECTED = 0x1C,
BTSTAT_UNSUPPORTED_MSG_RECEIVED = 0x1D,
BTSTAT_HARDWARE_FAILURE = 0x20,
BTSTAT_TARGET_IGNORED_ATN = 0x21,
BTSTAT_HA_SCSI_BUS_RESET = 0x22,
BTSTAT_OTHER_SCSI_BUS_RESET = 0x23,
BTSTAT_INVALID_RECONNECT = 0x24,
BTSTAT_HA_BDR = 0x25,
BTSTAT_ABORT_QUEUE_GENERATED = 0x26,
BTSTAT_HA_SOFTWARE_ERROR = 0x27,
BTSTAT_HA_WATCHDOG_ERROR = 0x28,
BTSTAT_SCSI_PERROR_DETECTED = 0x30
} btstat_t;
struct bt_hccb {
u_int8_t opcode;
u_int8_t :3,
datain :1,
dataout :1,
wide_tag_enable :1, /* Wide Lun CCB format */
wide_tag_type :2; /* Wide Lun CCB format */
u_int8_t cmd_len;
u_int8_t sense_len;
int32_t data_len; /* residuals can be negative */
u_int32_t data_addr;
u_int8_t reserved[2];
u_int8_t btstat;
u_int8_t sdstat;
u_int8_t target_id;
u_int8_t target_lun :5,
tag_enable :1,
tag_type :2;
u_int8_t scsi_cdb[12];
u_int8_t reserved2[6];
u_int32_t sense_addr;
};
typedef enum {
BCCB_FREE = 0x0,
BCCB_ACTIVE = 0x1,
BCCB_DEVICE_RESET = 0x2,
BCCB_RELEASE_SIMQ = 0x4
} bccb_flags_t;
struct bt_ccb {
struct bt_hccb hccb;
SLIST_ENTRY(bt_ccb) links;
u_int32_t flags;
union ccb *ccb;
bus_dmamap_t dmamap;
bt_sg_t *sg_list;
u_int32_t sg_list_phys;
};
struct sg_map_node {
bus_dmamap_t sg_dmamap;
bus_addr_t sg_physaddr;
bt_sg_t* sg_vaddr;
SLIST_ENTRY(sg_map_node) links;
};
struct bt_softc {
struct device *dev;
struct resource *port;
struct resource *irq;
struct resource *drq;
void *ih;
bus_space_tag_t tag;
bus_space_handle_t bsh;
struct cam_sim *sim;
struct cam_path *path;
bt_mbox_out_t *cur_outbox;
bt_mbox_in_t *cur_inbox;
bt_mbox_out_t *last_outbox;
bt_mbox_in_t *last_inbox;
struct bt_ccb *bt_ccb_array;
SLIST_HEAD(,bt_ccb) free_bt_ccbs;
LIST_HEAD(,ccb_hdr) pending_ccbs;
u_int active_ccbs;
u_int32_t bt_ccb_physbase;
bt_mbox_in_t *in_boxes;
bt_mbox_out_t *out_boxes;
struct scsi_sense_data *sense_buffers;
u_int32_t sense_buffers_physbase;
struct bt_ccb *recovery_bccb;
u_int num_boxes;
bus_dma_tag_t parent_dmat; /*
* All dmat's derive from
* the dmat defined by our
* bus.
*/
bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
bus_dma_tag_t mailbox_dmat; /* dmat for our mailboxes */
bus_dmamap_t mailbox_dmamap;
bus_dma_tag_t ccb_dmat; /* dmat for our ccb array */
bus_dmamap_t ccb_dmamap;
bus_dma_tag_t sg_dmat; /* dmat for our sg segments */
bus_dma_tag_t sense_dmat; /* dmat for our sense buffers */
bus_dmamap_t sense_dmamap;
SLIST_HEAD(, sg_map_node) sg_maps;
bus_addr_t mailbox_physbase;
bus_addr_t mailbox_addrlimit;
u_int num_ccbs; /* Number of CCBs malloc'd */
u_int max_ccbs; /* Maximum allocatable CCBs */
u_int max_sg;
u_int unit;
u_int scsi_id;
u_int32_t extended_trans :1,
wide_bus :1,
diff_bus :1,
ultra_scsi :1,
extended_lun :1,
strict_rr :1,
tag_capable :1,
wide_lun_ccb :1,
resource_shortage :1,
level_trigger_ints:1,
:22;
u_int16_t tags_permitted;
u_int16_t disc_permitted;
u_int16_t sync_permitted;
u_int16_t fast_permitted;
u_int16_t ultra_permitted;
u_int16_t wide_permitted;
u_int8_t init_level;
volatile u_int8_t command_cmp;
volatile u_int8_t latched_status;
u_int32_t bios_addr;
char firmware_ver[6];
char model[5];
};
extern u_long bt_unit;
#define BT_TEMP_UNIT 0xFF /* Unit for probes */
void bt_init_softc(device_t dev,
struct resource *port,
struct resource *irq,
struct resource *drq);
void bt_free_softc(device_t dev);
int bt_port_probe(device_t dev,
struct bt_probe_info *info);
int bt_probe(device_t dev);
int bt_fetch_adapter_info(device_t dev);
int bt_init(device_t dev);
int bt_attach(device_t dev);
void bt_intr(void *arg);
int bt_check_probed_iop(u_int ioport);
void bt_mark_probed_bio(isa_compat_io_t port);
void bt_mark_probed_iop(u_int ioport);
void bt_find_probe_range(int ioport,
int *port_index,
int *max_port_index);
int bt_iop_from_bio(isa_compat_io_t bio_index);
#define DEFAULT_CMD_TIMEOUT 100000 /* 10 sec */
int bt_cmd(struct bt_softc *bt, bt_op_t opcode,
u_int8_t *params, u_int param_len,
u_int8_t *reply_data, u_int reply_len,
u_int cmd_timeout);
#define bt_name(bt) device_get_nameunit(bt->dev)
#define bt_inb(bt, port) \
bus_space_read_1((bt)->tag, (bt)->bsh, port)
#define bt_outb(bt, port, value) \
bus_space_write_1((bt)->tag, (bt)->bsh, port, value)
#endif /* _BT_H_ */