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Diffstat (limited to 'drivers/scsi/qlogicfas408.h')
| -rw-r--r-- | drivers/scsi/qlogicfas408.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/scsi/qlogicfas408.h b/drivers/scsi/qlogicfas408.h new file mode 100644 index 000000000..2f6c0a166 --- /dev/null +++ b/drivers/scsi/qlogicfas408.h @@ -0,0 +1,118 @@ +/* to be used by qlogicfas and qlogic_cs */ +#ifndef __QLOGICFAS408_H +#define __QLOGICFAS408_H + +/*----------------------------------------------------------------*/ +/* Configuration */ + +/* Set the following to max out the speed of the PIO PseudoDMA transfers, + again, 0 tends to be slower, but more stable. */ + +#define QL_TURBO_PDMA 1 + +/* This should be 1 to enable parity detection */ + +#define QL_ENABLE_PARITY 1 + +/* This will reset all devices when the driver is initialized (during bootup). + The other linux drivers don't do this, but the DOS drivers do, and after + using DOS or some kind of crash or lockup this will bring things back + without requiring a cold boot. It does take some time to recover from a + reset, so it is slower, and I have seen timeouts so that devices weren't + recognized when this was set. */ + +#define QL_RESET_AT_START 0 + +/* crystal frequency in megahertz (for offset 5 and 9) + Please set this for your card. Most Qlogic cards are 40 Mhz. The + Control Concepts ISA (not VLB) is 24 Mhz */ + +#define XTALFREQ 40 + +/**********/ +/* DANGER! modify these at your own risk */ +/* SLOWCABLE can usually be reset to zero if you have a clean setup and + proper termination. The rest are for synchronous transfers and other + advanced features if your device can transfer faster than 5Mb/sec. + If you are really curious, email me for a quick howto until I have + something official */ +/**********/ + +/*****/ +/* config register 1 (offset 8) options */ +/* This needs to be set to 1 if your cabling is long or noisy */ +#define SLOWCABLE 1 + +/*****/ +/* offset 0xc */ +/* This will set fast (10Mhz) synchronous timing when set to 1 + For this to have an effect, FASTCLK must also be 1 */ +#define FASTSCSI 0 + +/* This when set to 1 will set a faster sync transfer rate */ +#define FASTCLK 0 /*(XTALFREQ>25?1:0)*/ + +/*****/ +/* offset 6 */ +/* This is the sync transfer divisor, XTALFREQ/X will be the maximum + achievable data rate (assuming the rest of the system is capable + and set properly) */ +#define SYNCXFRPD 5 /*(XTALFREQ/5)*/ + +/*****/ +/* offset 7 */ +/* This is the count of how many synchronous transfers can take place + i.e. how many reqs can occur before an ack is given. + The maximum value for this is 15, the upper bits can modify + REQ/ACK assertion and deassertion during synchronous transfers + If this is 0, the bus will only transfer asynchronously */ +#define SYNCOFFST 0 +/* for the curious, bits 7&6 control the deassertion delay in 1/2 cycles + of the 40Mhz clock. If FASTCLK is 1, specifying 01 (1/2) will + cause the deassertion to be early by 1/2 clock. Bits 5&4 control + the assertion delay, also in 1/2 clocks (FASTCLK is ignored here). */ + +/*----------------------------------------------------------------*/ + +struct qlogicfas408_priv { + int qbase; /* Port */ + int qinitid; /* initiator ID */ + int qabort; /* Flag to cause an abort */ + int qlirq; /* IRQ being used */ + int int_type; /* type of irq, 2 for ISA board, 0 for PCMCIA */ + char qinfo[80]; /* description */ + struct scsi_cmnd *qlcmd; /* current command being processed */ + struct Scsi_Host *shost; /* pointer back to host */ + struct qlogicfas408_priv *next; /* next private struct */ +}; + +/* The qlogic card uses two register maps - These macros select which one */ +#define REG0 ( outb( inb( qbase + 0xd ) & 0x7f , qbase + 0xd ), outb( 4 , qbase + 0xd )) +#define REG1 ( outb( inb( qbase + 0xd ) | 0x80 , qbase + 0xd ), outb( 0xb4 | int_type, qbase + 0xd )) + +/* following is watchdog timeout in microseconds */ +#define WATCHDOG 5000000 + +/*----------------------------------------------------------------*/ +/* the following will set the monitor border color (useful to find + where something crashed or gets stuck at and as a simple profiler) */ + +#define rtrc(i) {} + +#define get_priv_by_cmd(x) (struct qlogicfas408_priv *)&((x)->device->host->hostdata[0]) +#define get_priv_by_host(x) (struct qlogicfas408_priv *)&((x)->hostdata[0]) + +irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id); +int qlogicfas408_queuecommand(struct Scsi_Host *h, struct scsi_cmnd * cmd); +int qlogicfas408_biosparam(struct scsi_device * disk, + struct block_device *dev, + sector_t capacity, int ip[]); +int qlogicfas408_abort(struct scsi_cmnd * cmd); +int qlogicfas408_bus_reset(struct scsi_cmnd * cmd); +const char *qlogicfas408_info(struct Scsi_Host *host); +int qlogicfas408_get_chip_type(int qbase, int int_type); +void qlogicfas408_setup(int qbase, int id, int int_type); +int qlogicfas408_detect(int qbase, int int_type); +void qlogicfas408_disable_ints(struct qlogicfas408_priv *priv); +#endif /* __QLOGICFAS408_H */ + |