diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1998-03-18 17:17:51 +0000 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 1998-03-18 17:17:51 +0000 |
commit | f1382dc4850bb459d24a81c6cb0ef93ea7bd4a79 (patch) | |
tree | 225271a3d5dcd4e9dea5ee393556abd754c964b1 /drivers/scsi/wd7000.c | |
parent | 135b00fc2e90e605ac2a96b20b0ebd93851a3f89 (diff) |
o Merge with Linux 2.1.90.
o Divide L1 cache sizes by 1024 before printing, makes the numbers a
bit more credible ...
Diffstat (limited to 'drivers/scsi/wd7000.c')
-rw-r--r-- | drivers/scsi/wd7000.c | 1552 |
1 files changed, 920 insertions, 632 deletions
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index f8c899535..1b915e3ed 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -127,6 +127,19 @@ * * Thanks to Roger Scott for driver debugging. * + * 06/07/1997 + * + * Added support for /proc file system (/proc/scsi/wd7000/[0...] files). + * Now, driver can handle hard disks with capacity >1GB. + * + * 01/15/1998 + * + * Added support for BUS_ON and BUS_OFF parameters in config line. + * Miscellaneous cleanup. + * + * 03/01/1998 + * + * WD7000 driver now work on kernels >= 2.1.x */ #ifdef MODULE @@ -143,24 +156,29 @@ #include <asm/system.h> #include <asm/dma.h> #include <asm/io.h> -#include <asm/irq.h> #include <linux/ioport.h> #include <linux/proc_fs.h> #include <linux/blk.h> +#include <linux/version.h> #include "scsi.h" #include "hosts.h" #include "sd.h" +#include <scsi/scsicam.h> #define ANY2SCSI_INLINE /* undef this to use old macros */ -#undef DEBUG +#undef WD7000_DEBUG /* general debug */ #include "wd7000.h" +#include <linux/stat.h> -#include<linux/stat.h> -struct proc_dir_entry proc_scsi_wd7000 = { - PROC_SCSI_7000FASST, 6, "wd7000", - S_IFDIR | S_IRUGO | S_IXUGO, 2 +struct proc_dir_entry proc_scsi_wd7000 = +{ + PROC_SCSI_7000FASST, + 6, + "wd7000", + S_IFDIR | S_IRUGO | S_IXUGO, + 2 }; @@ -186,52 +204,48 @@ struct proc_dir_entry proc_scsi_wd7000 = { * WD7000-specific mailbox structure * */ -typedef volatile struct mailbox{ - unchar status; - unchar scbptr[3]; /* SCSI-style - MSB first (big endian) */ +typedef volatile struct mailbox { + unchar status; + unchar scbptr[3]; /* SCSI-style - MSB first (big endian) */ } Mailbox; /* * This structure should contain all per-adapter global data. I.e., any * new global per-adapter data should put in here. - * */ typedef struct adapter { - struct Scsi_Host *sh; /* Pointer to Scsi_Host structure */ - int iobase; /* This adapter's I/O base address */ - int irq; /* This adapter's IRQ level */ - int dma; /* This adapter's DMA channel */ - struct { /* This adapter's mailboxes */ - Mailbox ogmb[OGMB_CNT]; /* Outgoing mailboxes */ - Mailbox icmb[ICMB_CNT]; /* Incoming mailboxes */ - } mb; - int next_ogmb; /* to reduce contention at mailboxes */ - unchar control; /* shadows CONTROL port value */ - unchar rev1, rev2; /* filled in by wd7000_revision */ + struct Scsi_Host *sh; /* Pointer to Scsi_Host structure */ + int iobase; /* This adapter's I/O base address */ + int irq; /* This adapter's IRQ level */ + int dma; /* This adapter's DMA channel */ + int int_counter; /* This adapter's interrupt counter */ + int bus_on; /* This adapter's BUS_ON time */ + int bus_off; /* This adapter's BUS_OFF time */ + struct { /* This adapter's mailboxes */ + Mailbox ogmb[OGMB_CNT]; /* Outgoing mailboxes */ + Mailbox icmb[ICMB_CNT]; /* Incoming mailboxes */ + } mb; + int next_ogmb; /* to reduce contention at mailboxes */ + unchar control; /* shadows CONTROL port value */ + unchar rev1, rev2; /* filled in by wd7000_revision */ } Adapter; /* - * The following is set up by wd7000_detect, and used thereafter by - * wd7000_intr_handle to map the irq level to the corresponding Adapter. - * Note that if SA_INTERRUPT is not used, wd7000_intr_handle must be - * changed to pick up the IRQ level correctly. - */ -static Adapter *irq2host[NR_IRQS] = {NULL}; - -/* * (linear) base address for ROM BIOS */ -static const long wd7000_biosaddr[] = { - 0xc0000, 0xc2000, 0xc4000, 0xc6000, 0xc8000, 0xca000, 0xcc000, 0xce000, - 0xd0000, 0xd2000, 0xd4000, 0xd6000, 0xd8000, 0xda000, 0xdc000, 0xde000 +static const long wd7000_biosaddr[] = +{ + 0xc0000, 0xc2000, 0xc4000, 0xc6000, 0xc8000, 0xca000, 0xcc000, 0xce000, + 0xd0000, 0xd2000, 0xd4000, 0xd6000, 0xd8000, 0xda000, 0xdc000, 0xde000 }; #define NUM_ADDRS (sizeof(wd7000_biosaddr)/sizeof(long)) -static const unsigned short wd7000_iobase[] = { - 0x0300, 0x0308, 0x0310, 0x0318, 0x0320, 0x0328, 0x0330, 0x0338, - 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370, 0x0378, - 0x0380, 0x0388, 0x0390, 0x0398, 0x03a0, 0x03a8, 0x03b0, 0x03b8, - 0x03c0, 0x03c8, 0x03d0, 0x03d8, 0x03e0, 0x03e8, 0x03f0, 0x03f8 +static const unsigned short wd7000_iobase[] = +{ + 0x0300, 0x0308, 0x0310, 0x0318, 0x0320, 0x0328, 0x0330, 0x0338, + 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370, 0x0378, + 0x0380, 0x0388, 0x0390, 0x0398, 0x03a0, 0x03a8, 0x03b0, 0x03b8, + 0x03c0, 0x03c8, 0x03d0, 0x03d8, 0x03e0, 0x03e8, 0x03f0, 0x03f8 }; #define NUM_IOPORTS (sizeof(wd7000_iobase)/sizeof(unsigned short)) @@ -240,24 +254,48 @@ static const short wd7000_irq[] = { 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 }; static const short wd7000_dma[] = { 5, 6, 7 }; #define NUM_DMAS (sizeof(wd7000_dma)/sizeof(short)) - + +/* + * possible irq range + */ +#define IRQ_MIN 3 +#define IRQ_MAX 15 +#define IRQS (IRQ_MAX - IRQ_MIN + 1) + +/* + * The following is set up by wd7000_detect, and used thereafter by + * wd7000_intr_handle to map the irq level to the corresponding Adapter. + * Note that if SA_INTERRUPT is not used, wd7000_intr_handle must be + * changed to pick up the IRQ level correctly. + */ +static struct Scsi_Host *wd7000_host[IRQS]; + +#define BUS_ON 64 /* x 125ns = 8000ns (BIOS default) */ +#define BUS_OFF 15 /* x 125ns = 1875ns (BIOS default) */ + /* * Standard Adapter Configurations - used by wd7000_detect */ typedef struct { - int irq; /* IRQ level */ - int dma; /* DMA channel */ - unsigned iobase; /* I/O base address */ + short irq; /* IRQ level */ + short dma; /* DMA channel */ + unsigned iobase; /* I/O base address */ + short bus_on; /* Time that WD7000 spends on the AT-bus when */ + /* transferring data. BIOS default is 8000ns. */ + short bus_off; /* Time that WD7000 spends OFF THE BUS after */ + /* while it is transferring data. */ + /* BIOS default is 1875ns */ } Config; /* * Add here your configuration... */ -static const Config configs[] = { - { 15, 6, 0x350 }, /* defaults for single adapter */ - { 11, 5, 0x320 }, /* defaults for second adapter */ - { 7, 6, 0x350 }, /* My configuration (Zaga) */ - { -1, -1, 0x0 } /* Empty slot */ +static Config configs[] = +{ + { 15, 6, 0x350, BUS_ON, BUS_OFF }, /* defaults for single adapter */ + { 11, 5, 0x320, BUS_ON, BUS_OFF }, /* defaults for second adapter */ + { 7, 6, 0x350, BUS_ON, BUS_OFF }, /* My configuration (Zaga) */ + { -1, -1, 0x0, BUS_ON, BUS_OFF } /* Empty slot */ }; #define NUM_CONFIGS (sizeof(configs)/sizeof(Config)) @@ -267,13 +305,14 @@ static const Config configs[] = { * added for the Future Domain version. */ typedef struct signature { - const void *sig; /* String to look for */ - unsigned ofs; /* offset from BIOS base address */ - unsigned len; /* length of string */ + const char *sig; /* String to look for */ + unsigned long ofs; /* offset from BIOS base address */ + unsigned len; /* length of string */ } Signature; -static const Signature signatures[] = { - { "SSTBIOS", 0x0000d, 7 } /* "SSTBIOS" @ offset 0x0000d */ +static const Signature signatures[] = +{ + {"SSTBIOS", 0x0000d, 7} /* "SSTBIOS" @ offset 0x0000d */ }; #define NUM_SIGNATURES (sizeof(signatures)/sizeof(Signature)) @@ -282,22 +321,23 @@ static const Signature signatures[] = { * I/O Port Offsets and Bit Definitions * 4 addresses are used. Those not defined here are reserved. */ -#define ASC_STAT 0 /* Status, Read */ -#define ASC_COMMAND 0 /* Command, Write */ +#define ASC_STAT 0 /* Status, Read */ +#define ASC_COMMAND 0 /* Command, Write */ #define ASC_INTR_STAT 1 /* Interrupt Status, Read */ -#define ASC_INTR_ACK 1 /* Acknowledge, Write */ -#define ASC_CONTROL 2 /* Control, Write */ +#define ASC_INTR_ACK 1 /* Acknowledge, Write */ +#define ASC_CONTROL 2 /* Control, Write */ /* * ASC Status Port */ -#define INT_IM 0x80 /* Interrupt Image Flag */ -#define CMD_RDY 0x40 /* Command Port Ready */ -#define CMD_REJ 0x20 /* Command Port Byte Rejected */ -#define ASC_INIT 0x10 /* ASC Initialized Flag */ +#define INT_IM 0x80 /* Interrupt Image Flag */ +#define CMD_RDY 0x40 /* Command Port Ready */ +#define CMD_REJ 0x20 /* Command Port Byte Rejected */ +#define ASC_INIT 0x10 /* ASC Initialized Flag */ #define ASC_STATMASK 0xf0 /* The lower 4 Bytes are reserved */ -/* COMMAND opcodes +/* + * COMMAND opcodes * * Unfortunately, I have no idea how to properly use some of these commands, * as the OEM manual does not make it clear. I have not been able to use @@ -305,39 +345,38 @@ static const Signature signatures[] = { * discernible effect whatsoever. I think they may be related to certain * ICB commands, but again, the OEM manual doesn't make that clear. */ -#define NO_OP 0 /* NO-OP toggles CMD_RDY bit in ASC_STAT */ -#define INITIALIZATION 1 /* initialization (10 bytes) */ -#define DISABLE_UNS_INTR 2 /* disable unsolicited interrupts */ -#define ENABLE_UNS_INTR 3 /* enable unsolicited interrupts */ -#define INTR_ON_FREE_OGMB 4 /* interrupt on free OGMB */ -#define SOFT_RESET 5 /* SCSI bus soft reset */ -#define HARD_RESET_ACK 6 /* SCSI bus hard reset acknowledge */ -#define START_OGMB 0x80 /* start command in OGMB (n) */ +#define NO_OP 0 /* NO-OP toggles CMD_RDY bit in ASC_STAT */ +#define INITIALIZATION 1 /* initialization (10 bytes) */ +#define DISABLE_UNS_INTR 2 /* disable unsolicited interrupts */ +#define ENABLE_UNS_INTR 3 /* enable unsolicited interrupts */ +#define INTR_ON_FREE_OGMB 4 /* interrupt on free OGMB */ +#define SOFT_RESET 5 /* SCSI bus soft reset */ +#define HARD_RESET_ACK 6 /* SCSI bus hard reset acknowledge */ +#define START_OGMB 0x80 /* start command in OGMB (n) */ #define SCAN_OGMBS 0xc0 /* start multiple commands, signature (n) */ - /* where (n) = lower 6 bits */ -/* For INITIALIZATION: + /* where (n) = lower 6 bits */ +/* + * For INITIALIZATION: */ typedef struct initCmd { - unchar op; /* command opcode (= 1) */ - unchar ID; /* Adapter's SCSI ID */ - unchar bus_on; /* Bus on time, x 125ns (see below) */ - unchar bus_off; /* Bus off time, "" "" */ - unchar rsvd; /* Reserved */ - unchar mailboxes[3]; /* Address of Mailboxes, MSB first */ - unchar ogmbs; /* Number of outgoing MBs, max 64, 0,1 = 1 */ - unchar icmbs; /* Number of incoming MBs, "" "" */ + unchar op; /* command opcode (= 1) */ + unchar ID; /* Adapter's SCSI ID */ + unchar bus_on; /* Bus on time, x 125ns (see below) */ + unchar bus_off; /* Bus off time, "" "" */ + unchar rsvd; /* Reserved */ + unchar mailboxes[3]; /* Address of Mailboxes, MSB first */ + unchar ogmbs; /* Number of outgoing MBs, max 64, 0,1 = 1 */ + unchar icmbs; /* Number of incoming MBs, "" "" */ } InitCmd; -#define BUS_ON 64 /* x 125ns = 8000ns (BIOS default) */ -#define BUS_OFF 15 /* x 125ns = 1875ns (BIOS default) */ - -/* Interrupt Status Port - also returns diagnostic codes at ASC reset +/* + * Interrupt Status Port - also returns diagnostic codes at ASC reset * * if msb is zero, the lower bits are diagnostic status * Diagnostics: - * 01 No diagnostic error occurred - * 02 RAM failure - * 03 FIFO R/W failed + * 01 No diagnostic error occurred + * 02 RAM failure + * 03 FIFO R/W failed * 04 SBIC register read/write failed * 05 Initialization D-FF failed * 06 Host IRQ D-FF failed @@ -346,19 +385,20 @@ typedef struct initCmd { * 10NNNNNN outgoing mailbox NNNNNN is free * 11NNNNNN incoming mailbox NNNNNN needs service */ -#define MB_INTR 0xC0 /* Mailbox Service possible/required */ -#define IMB_INTR 0x40 /* 1 Incoming / 0 Outgoing */ -#define MB_MASK 0x3f /* mask for mailbox number */ +#define MB_INTR 0xC0 /* Mailbox Service possible/required */ +#define IMB_INTR 0x40 /* 1 Incoming / 0 Outgoing */ +#define MB_MASK 0x3f /* mask for mailbox number */ -/* CONTROL port bits +/* + * CONTROL port bits */ -#define INT_EN 0x08 /* Interrupt Enable */ -#define DMA_EN 0x04 /* DMA Enable */ -#define SCSI_RES 0x02 /* SCSI Reset */ -#define ASC_RES 0x01 /* ASC Reset */ +#define INT_EN 0x08 /* Interrupt Enable */ +#define DMA_EN 0x04 /* DMA Enable */ +#define SCSI_RES 0x02 /* SCSI Reset */ +#define ASC_RES 0x01 /* ASC Reset */ /* - * Driver data structures: + * Driver data structures: * - mb and scbs are required for interfacing with the host adapter. * An SCB has extra fields not visible to the adapter; mb's * _cannot_ do this, since the adapter assumes they are contiguous in @@ -387,28 +427,28 @@ typedef struct initCmd { */ typedef struct sgb { unchar len[3]; - unchar ptr[3]; /* Also SCSI-style - MSB first */ + unchar ptr[3]; /* Also SCSI-style - MSB first */ } Sgb; -typedef struct scb { /* Command Control Block 5.4.1 */ - unchar op; /* Command Control Block Operation Code */ - unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */ - /* Outbound data transfer, length is checked*/ - /* Inbound data transfer, length is checked */ - /* Logical Unit Number */ - unchar cdb[12]; /* SCSI Command Block */ - volatile unchar status; /* SCSI Return Status */ - volatile unchar vue; /* Vendor Unique Error Code */ - unchar maxlen[3]; /* Maximum Data Transfer Length */ - unchar dataptr[3]; /* SCSI Data Block Pointer */ - unchar linkptr[3]; /* Next Command Link Pointer */ - unchar direc; /* Transfer Direction */ - unchar reserved2[6]; /* SCSI Command Descriptor Block */ - /* end of hardware SCB */ - Scsi_Cmnd *SCpnt; /* Scsi_Cmnd using this SCB */ - Sgb sgb[WD7000_SG]; /* Scatter/gather list for this SCB */ - Adapter *host; /* host adapter */ - struct scb *next; /* for lists of scbs */ +typedef struct scb { /* Command Control Block 5.4.1 */ + unchar op; /* Command Control Block Operation Code */ + unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */ + /* Outbound data transfer, length is checked */ + /* Inbound data transfer, length is checked */ + /* Logical Unit Number */ + unchar cdb[12]; /* SCSI Command Block */ + volatile unchar status; /* SCSI Return Status */ + volatile unchar vue; /* Vendor Unique Error Code */ + unchar maxlen[3]; /* Maximum Data Transfer Length */ + unchar dataptr[3]; /* SCSI Data Block Pointer */ + unchar linkptr[3]; /* Next Command Link Pointer */ + unchar direc; /* Transfer Direction */ + unchar reserved2[6]; /* SCSI Command Descriptor Block */ + /* end of hardware SCB */ + Scsi_Cmnd *SCpnt; /* Scsi_Cmnd using this SCB */ + Sgb sgb[WD7000_SG]; /* Scatter/gather list for this SCB */ + Adapter *host; /* host adapter */ + struct scb *next; /* for lists of scbs */ } Scb; /* @@ -422,110 +462,110 @@ typedef struct scb { /* Command Control Block 5.4.1 */ * (notably, get/set unsolicited interrupt status) in my copy of the OEM * manual, and others are ambiguous/hard to follow. */ -#define ICB_OP_MASK 0x80 /* distinguishes scbs from icbs */ -#define ICB_OP_OPEN_RBUF 0x80 /* open receive buffer */ -#define ICB_OP_RECV_CMD 0x81 /* receive command from initiator */ -#define ICB_OP_RECV_DATA 0x82 /* receive data from initiator */ -#define ICB_OP_RECV_SDATA 0x83 /* receive data with status from init. */ -#define ICB_OP_SEND_DATA 0x84 /* send data with status to initiator */ -#define ICB_OP_SEND_STAT 0x86 /* send command status to initiator */ - /* 0x87 is reserved */ -#define ICB_OP_READ_INIT 0x88 /* read initialization bytes */ -#define ICB_OP_READ_ID 0x89 /* read adapter's SCSI ID */ -#define ICB_OP_SET_UMASK 0x8A /* set unsolicited interrupt mask */ -#define ICB_OP_GET_UMASK 0x8B /* read unsolicited interrupt mask */ -#define ICB_OP_GET_REVISION 0x8C /* read firmware revision level */ -#define ICB_OP_DIAGNOSTICS 0x8D /* execute diagnostics */ -#define ICB_OP_SET_EPARMS 0x8E /* set execution parameters */ -#define ICB_OP_GET_EPARMS 0x8F /* read execution parameters */ +#define ICB_OP_MASK 0x80 /* distinguishes scbs from icbs */ +#define ICB_OP_OPEN_RBUF 0x80 /* open receive buffer */ +#define ICB_OP_RECV_CMD 0x81 /* receive command from initiator */ +#define ICB_OP_RECV_DATA 0x82 /* receive data from initiator */ +#define ICB_OP_RECV_SDATA 0x83 /* receive data with status from init. */ +#define ICB_OP_SEND_DATA 0x84 /* send data with status to initiator */ +#define ICB_OP_SEND_STAT 0x86 /* send command status to initiator */ + /* 0x87 is reserved */ +#define ICB_OP_READ_INIT 0x88 /* read initialization bytes */ +#define ICB_OP_READ_ID 0x89 /* read adapter's SCSI ID */ +#define ICB_OP_SET_UMASK 0x8A /* set unsolicited interrupt mask */ +#define ICB_OP_GET_UMASK 0x8B /* read unsolicited interrupt mask */ +#define ICB_OP_GET_REVISION 0x8C /* read firmware revision level */ +#define ICB_OP_DIAGNOSTICS 0x8D /* execute diagnostics */ +#define ICB_OP_SET_EPARMS 0x8E /* set execution parameters */ +#define ICB_OP_GET_EPARMS 0x8F /* read execution parameters */ typedef struct icbRecvCmd { - unchar op; - unchar IDlun; /* Initiator SCSI ID/lun */ - unchar len[3]; /* command buffer length */ - unchar ptr[3]; /* command buffer address */ - unchar rsvd[7]; /* reserved */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + unchar IDlun; /* Initiator SCSI ID/lun */ + unchar len[3]; /* command buffer length */ + unchar ptr[3]; /* command buffer address */ + unchar rsvd[7]; /* reserved */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbRecvCmd; typedef struct icbSendStat { - unchar op; - unchar IDlun; /* Target SCSI ID/lun */ - unchar stat; /* (outgoing) completion status byte 1 */ - unchar rsvd[12]; /* reserved */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + unchar IDlun; /* Target SCSI ID/lun */ + unchar stat; /* (outgoing) completion status byte 1 */ + unchar rsvd[12]; /* reserved */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbSendStat; typedef struct icbRevLvl { - unchar op; - volatile unchar primary; /* primary revision level (returned) */ - volatile unchar secondary; /* secondary revision level (returned) */ - unchar rsvd[12]; /* reserved */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + volatile unchar primary; /* primary revision level (returned) */ + volatile unchar secondary; /* secondary revision level (returned) */ + unchar rsvd[12]; /* reserved */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbRevLvl; -typedef struct icbUnsMask { /* I'm totally guessing here */ - unchar op; - volatile unchar mask[14]; /* mask bits */ -#if 0 - unchar rsvd[12]; /* reserved */ +typedef struct icbUnsMask { /* I'm totally guessing here */ + unchar op; + volatile unchar mask[14]; /* mask bits */ +#ifdef 0 + unchar rsvd[12]; /* reserved */ #endif - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbUnsMask; typedef struct icbDiag { - unchar op; - unchar type; /* diagnostics type code (0-3) */ - unchar len[3]; /* buffer length */ - unchar ptr[3]; /* buffer address */ - unchar rsvd[7]; /* reserved */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + unchar type; /* diagnostics type code (0-3) */ + unchar len[3]; /* buffer length */ + unchar ptr[3]; /* buffer address */ + unchar rsvd[7]; /* reserved */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbDiag; -#define ICB_DIAG_POWERUP 0 /* Power-up diags only */ -#define ICB_DIAG_WALKING 1 /* walking 1's pattern */ -#define ICB_DIAG_DMA 2 /* DMA - system memory diags */ -#define ICB_DIAG_FULL 3 /* do both 1 & 2 */ +#define ICB_DIAG_POWERUP 0 /* Power-up diags only */ +#define ICB_DIAG_WALKING 1 /* walking 1's pattern */ +#define ICB_DIAG_DMA 2 /* DMA - system memory diags */ +#define ICB_DIAG_FULL 3 /* do both 1 & 2 */ typedef struct icbParms { - unchar op; - unchar rsvd1; /* reserved */ - unchar len[3]; /* parms buffer length */ - unchar ptr[3]; /* parms buffer address */ - unchar idx[2]; /* index (MSB-LSB) */ - unchar rsvd2[5]; /* reserved */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + unchar rsvd1; /* reserved */ + unchar len[3]; /* parms buffer length */ + unchar ptr[3]; /* parms buffer address */ + unchar idx[2]; /* index (MSB-LSB) */ + unchar rsvd2[5]; /* reserved */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbParms; typedef struct icbAny { - unchar op; - unchar data[14]; /* format-specific data */ - volatile unchar vue; /* vendor-unique error code */ - volatile unchar status; /* returned (icmb) status */ - volatile unchar phase; /* used by interrupt handler */ + unchar op; + unchar data[14]; /* format-specific data */ + volatile unchar vue; /* vendor-unique error code */ + volatile unchar status; /* returned (icmb) status */ + volatile unchar phase; /* used by interrupt handler */ } IcbAny; typedef union icb { - unchar op; /* ICB opcode */ - IcbRecvCmd recv_cmd; /* format for receive command */ - IcbSendStat send_stat; /* format for send status */ - IcbRevLvl rev_lvl; /* format for get revision level */ - IcbDiag diag; /* format for execute diagnostics */ - IcbParms eparms; /* format for get/set exec parms */ - IcbAny icb; /* generic format */ - unchar data[18]; + unchar op; /* ICB opcode */ + IcbRecvCmd recv_cmd; /* format for receive command */ + IcbSendStat send_stat; /* format for send status */ + IcbRevLvl rev_lvl; /* format for get revision level */ + IcbDiag diag; /* format for execute diagnostics */ + IcbParms eparms; /* format for get/set exec parms */ + IcbAny icb; /* generic format */ + unchar data[18]; } Icb; @@ -536,27 +576,34 @@ typedef union icb { * structure is not part of the Adapter structure. */ static Scb scbs[MAX_SCBS]; -static Scb *scbfree = NULL; /* free list */ -static int freescbs = MAX_SCBS; /* free list counter */ - -/* - * - */ -static short wd7000_setupIRQ[NUM_CONFIGS]; -static short wd7000_setupDMA[NUM_CONFIGS]; -static short wd7000_setupIO[NUM_CONFIGS]; -static short wd7000_card_num = 0; +static Scb *scbfree = NULL; /* free list */ +static int freescbs = MAX_SCBS; /* free list counter */ /* * END of data/declarations - code follows. */ +static void setup_error (char *mesg, int *ints) +{ + if (ints[0] == 3) + printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> %s\n", + ints[1], ints[2], ints[3], mesg); + else if (ints[0] == 4) + printk ("wd7000_setup: \"wd7000=%d,%d,0x%x,%d\" -> %s\n", + ints[1], ints[2], ints[3], ints[4], mesg); + else + printk ("wd7000_setup: \"wd7000=%d,%d,0x%x,%d,%d\" -> %s\n", + ints[1], ints[2], ints[3], ints[4], ints[5], mesg); +} /* * Note: You can now set these options from the kernel's "command line". * The syntax is: * - * wd7000=IRQ,DMA,IO + * wd7000=<IRQ>,<DMA>,<IO>[,<BUS_ON>[,<BUS_OFF>]] + * + * , where BUS_ON and BUS_OFF are in nanoseconds. BIOS default values + * are 8000ns for BUS_ON and 1875ns for BUS_OFF. * eg: * wd7000=7,6,0x350 * @@ -565,82 +612,99 @@ static short wd7000_card_num = 0; */ void wd7000_setup (char *str, int *ints) { + static short wd7000_card_num = 0; short i, j; if (wd7000_card_num >= NUM_CONFIGS) { - printk ("wd7000_setup: Too many \"wd7000=\" configurations in " - "command line!\n"); - - return; + printk ("wd7000_setup: Too many \"wd7000=\" configurations in " + "command line!\n"); + return; } - if (ints[0] != 3) + if ((ints[0] < 3) || (ints[0] > 5)) printk ("wd7000_setup: Error in command line! " - "Usage: wd7000=IRQ,DMA,IO\n"); + "Usage: wd7000=<IRQ>,<DMA>,IO>[,<BUS_ON>[,<BUS_OFF>]]\n"); else { for (i = 0; i < NUM_IRQS; i++) if (ints[1] == wd7000_irq[i]) break; if (i == NUM_IRQS) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "invalid IRQ.\n", ints[1], ints[2], ints[3]); + setup_error ("invalid IRQ.", ints); return; } else - wd7000_setupIRQ[wd7000_card_num] = ints[1]; + configs[wd7000_card_num].irq = ints[1]; for (i = 0; i < NUM_DMAS; i++) if (ints[2] == wd7000_dma[i]) break; if (i == NUM_DMAS) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "invalid DMA channel.\n", ints[1], ints[2], ints[3]); + setup_error ("invalid DMA channel.", ints); return; } else - wd7000_setupDMA[wd7000_card_num] = ints[2]; + configs[wd7000_card_num].dma = ints[2]; for (i = 0; i < NUM_IOPORTS; i++) if (ints[3] == wd7000_iobase[i]) break; if (i == NUM_IOPORTS) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "invalid I/O base address.\n", ints[1], ints[2], ints[3]); + setup_error ("invalid I/O base address.", ints); return; } else - wd7000_setupIO[wd7000_card_num] = ints[3]; + configs[wd7000_card_num].iobase = ints[3]; + + if (ints[0] > 3) { + if ((ints[4] < 500) || (ints[4] > 31875)) { + setup_error ("BUS_ON value is out of range (500 to 31875 nanoseconds)!", + ints); + configs[wd7000_card_num].bus_on = BUS_ON; + } + else + configs[wd7000_card_num].bus_on = ints[4] / 125.0; + } + else + configs[wd7000_card_num].bus_on = BUS_ON; + + if (ints[0] > 4) { + if ((ints[5] < 500) || (ints[5] > 31875)) { + setup_error ("BUS_OFF value is out of range (500 to 31875 nanoseconds)!", + ints); + configs[wd7000_card_num].bus_off = BUS_OFF; + } + else + configs[wd7000_card_num].bus_off = ints[5] / 125.0; + } + else + configs[wd7000_card_num].bus_off = BUS_OFF; if (wd7000_card_num) for (i = 0; i < (wd7000_card_num - 1); i++) - for (j = i + 1; j < wd7000_card_num; j++) - if (wd7000_setupIRQ[i] == wd7000_setupIRQ[j]) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "duplicated IRQ!\n", - ints[1], ints[2], ints[3]); - return; - } - else if (wd7000_setupDMA[i] == wd7000_setupDMA[j]) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "duplicated DMA channel!\n", - ints[1], ints[2], ints[3]); - return; - } - else if (wd7000_setupIO[i] == wd7000_setupIO[j]) { - printk ("wd7000_setup: \"wd7000=%d,%d,0x%x\" -> " - "duplicated I/O base address!\n", - ints[1], ints[2], ints[3]); - return; - } - -#ifdef DEBUG - printk ("wd7000_setup: IRQ=%d, DMA=%d, I/O=0x%x\n", - wd7000_setupIRQ[wd7000_card_num], - wd7000_setupDMA[wd7000_card_num], - wd7000_setupIO[wd7000_card_num]); + for (j = i + 1; j < wd7000_card_num; j++) + if (configs[i].irq == configs[j].irq) { + setup_error ("duplicated IRQ!", ints); + return; + } + else if (configs[i].dma == configs[j].dma) { + setup_error ("duplicated DMA channel!", ints); + return; + } + else if (configs[i].iobase == configs[j].iobase) { + setup_error ("duplicated I/O base address!", ints); + return; + } + +#ifdef WD7000_DEBUG + printk ("wd7000_setup: IRQ=%d, DMA=%d, I/O=0x%x, BUS_ON=%dns, BUS_OFF=%dns\n", + configs[wd7000_card_num].irq, + configs[wd7000_card_num].dma, + configs[wd7000_card_num].iobase, + configs[wd7000_card_num].bus_on * 125, + configs[wd7000_card_num].bus_off * 125); #endif wd7000_card_num++; @@ -650,21 +714,20 @@ void wd7000_setup (char *str, int *ints) #ifdef ANY2SCSI_INLINE /* - Since they're used a lot, I've redone the following from the macros - formerly in wd7000.h, hopefully to speed them up by getting rid of - all the shifting (it may not matter; GCC might have done as well anyway). - - xany2scsi and xscsi2int were not being used, and are no longer defined. - (They were simply 4-byte versions of these routines). -*/ - -typedef union { /* let's cheat... */ - int i; - unchar u[sizeof(int)]; /* the sizeof(int) makes it more portable */ + * Since they're used a lot, I've redone the following from the macros + * formerly in wd7000.h, hopefully to speed them up by getting rid of + * all the shifting (it may not matter; GCC might have done as well anyway). + * + * xany2scsi and xscsi2int were not being used, and are no longer defined. + * (They were simply 4-byte versions of these routines). + */ +typedef union { /* let's cheat... */ + int i; + unchar u[sizeof (int)]; /* the sizeof(int) makes it more portable */ } i_u; -static inline void any2scsi( unchar *scsi, int any ) +static inline void any2scsi (unchar * scsi, int any) { *scsi++ = ((i_u) any).u[2]; *scsi++ = ((i_u) any).u[1]; @@ -672,49 +735,50 @@ static inline void any2scsi( unchar *scsi, int any ) } -static inline int scsi2int( unchar *scsi ) +static inline int scsi2int (unchar * scsi) { i_u result; - result.i = 0; /* clears unused bytes */ - *(result.u+2) = *scsi++; - *(result.u+1) = *scsi++; - *(result.u) = *scsi++; - return result.i; + result.i = 0; /* clears unused bytes */ + result.u[2] = *scsi++; + result.u[1] = *scsi++; + result.u[0] = *scsi++; + + return (result.i); } #else /* - These are the old ones - I've just moved them here... -*/ + * These are the old ones - I've just moved them here... + */ #undef any2scsi -#define any2scsi(up, p) \ -(up)[0] = (((unsigned long)(p)) >> 16); \ -(up)[1] = ((unsigned long)(p)) >> 8; \ -(up)[2] = ((unsigned long)(p)); +#define any2scsi(up, p) (up)[0] = (((unsigned long) (p)) >> 16); \ + (up)[1] = ((unsigned long) (p)) >> 8; \ + (up)[2] = ((unsigned long) (p)); #undef scsi2int -#define scsi2int(up) ( (((unsigned long)*(up)) << 16) + \ - (((unsigned long)(up)[1]) << 8) + ((unsigned long)(up)[2]) ) +#define scsi2int(up) ( (((unsigned long) *(up)) << 16) + \ + (((unsigned long) (up)[1]) << 8) + \ + ((unsigned long) (up)[2]) ) #endif - -static inline void wd7000_enable_intr(Adapter *host) + +static inline void wd7000_enable_intr (Adapter *host) { host->control |= INT_EN; - outb(host->control, host->iobase+ASC_CONTROL); + outb (host->control, host->iobase + ASC_CONTROL); } -static inline void wd7000_enable_dma(Adapter *host) +static inline void wd7000_enable_dma (Adapter *host) { host->control |= DMA_EN; - outb(host->control,host->iobase+ASC_CONTROL); - set_dma_mode(host->dma, DMA_MODE_CASCADE); - enable_dma(host->dma); + outb (host->control, host->iobase + ASC_CONTROL); + set_dma_mode (host->dma, DMA_MODE_CASCADE); + enable_dma (host->dma); } -#define WAITnexttimeout 200 /* 2 seconds */ +#define WAITnexttimeout 200 /* 2 seconds */ static inline short WAIT (unsigned port, unsigned mask, unsigned allof, unsigned noneof) { @@ -722,7 +786,7 @@ static inline short WAIT (unsigned port, unsigned mask, unsigned allof, unsigned register unsigned long WAITtimeout = jiffies + WAITnexttimeout; while (jiffies <= WAITtimeout) { - WAITbits = inb (port) & mask; + WAITbits = inb (port) & mask; if (((WAITbits & allof) == allof) && ((WAITbits & noneof) == 0)) return (0); @@ -732,31 +796,32 @@ static inline short WAIT (unsigned port, unsigned mask, unsigned allof, unsigned } -static inline void delay( unsigned how_long ) +static inline void delay (unsigned how_long) { - register unsigned long time = jiffies + how_long; + register unsigned long time = jiffies + how_long; - while (jiffies < time); + while (jiffies < time); } -static inline int command_out(Adapter *host, unchar *cmd, int len) +static inline int command_out (Adapter * host, unchar * cmd, int len) { - if (! WAIT (host->iobase+ASC_STAT,ASC_STATMASK,CMD_RDY,0)) { - while (len--) { - do { - outb(*cmd, host->iobase+ASC_COMMAND); - WAIT(host->iobase+ASC_STAT, ASC_STATMASK, CMD_RDY, 0); - } while (inb(host->iobase+ASC_STAT) & CMD_REJ); + if (!WAIT (host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) { + while (len--) { + do { + outb (*cmd, host->iobase + ASC_COMMAND); + WAIT (host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0); + } while (inb (host->iobase + ASC_STAT) & CMD_REJ); cmd++; } - return 1; + return (1); } - printk("wd7000 command_out: WAIT failed(%d)\n", len+1); - return 0; + printk ("wd7000 command_out: WAIT failed(%d)\n", len + 1); + + return (0); } @@ -770,7 +835,7 @@ static inline int command_out(Adapter *host, unchar *cmd, int len) * the satisfiability of a request is not dependent on the size of the * request. */ -static inline Scb *alloc_scbs(int needed) +static inline Scb *alloc_scbs (int needed) { register Scb *scb, *p; register unsigned long flags; @@ -779,84 +844,89 @@ static inline Scb *alloc_scbs(int needed) static int busy = 0; int i; - if (needed <= 0) return NULL; /* sanity check */ + if (needed <= 0) + return (NULL); /* sanity check */ - save_flags(flags); - cli(); - while (busy) { /* someone else is allocating */ - sti(); /* Yes this is really needed here */ - now = jiffies; while (jiffies == now) /* wait a jiffy */; - cli(); + save_flags (flags); + cli (); + while (busy) { /* someone else is allocating */ + sti (); /* Yes this is really needed here */ + for (now = jiffies; now == jiffies; ); /* wait a jiffy */ + cli (); } - busy = 1; /* not busy now; it's our turn */ + busy = 1; /* not busy now; it's our turn */ - while (freescbs < needed) { + while (freescbs < needed) { timeout = jiffies + WAITnexttimeout; do { - sti(); /* Yes this is really needed here */ - now = jiffies; - while (jiffies == now); /* wait a jiffy */ - cli(); - } while (freescbs < needed && jiffies <= timeout); + sti (); /* Yes this is really needed here */ + for (now = jiffies; now == jiffies; ); /* wait a jiffy */ + cli (); + } while (freescbs < needed && jiffies <= timeout); /* * If we get here with enough free Scbs, we can take them. * Otherwise, we timed out and didn't get enough. */ - if (freescbs < needed) { + if (freescbs < needed) { busy = 0; - panic("wd7000: can't get enough free SCBs.\n"); - restore_flags(flags); - return NULL; + panic ("wd7000: can't get enough free SCBs.\n"); + restore_flags (flags); + return (NULL); } } - scb = scbfree; freescbs -= needed; - for (i = 0; i < needed; i++) { p = scbfree; scbfree = p->next; } + scb = scbfree; + freescbs -= needed; + for (i = 0; i < needed; i++) { + p = scbfree; + scbfree = p->next; + } p->next = NULL; - - busy = 0; /* we're done */ + busy = 0; /* we're done */ - restore_flags(flags); + restore_flags (flags); - return scb; + return (scb); } -static inline void free_scb( Scb *scb ) +static inline void free_scb (Scb *scb) { register unsigned long flags; - save_flags(flags); - cli(); + save_flags (flags); + cli (); - memset(scb, 0, sizeof(Scb)); - scb->next = scbfree; scbfree = scb; + memset (scb, 0, sizeof (Scb)); + scb->next = scbfree; + scbfree = scb; freescbs++; - restore_flags(flags); + restore_flags (flags); } -static inline void init_scbs(void) +static inline void init_scbs (void) { int i; unsigned long flags; - save_flags(flags); - cli(); + save_flags (flags); + cli (); scbfree = &(scbs[0]); - memset(scbs, 0, sizeof(scbs)); - for (i = 0; i < MAX_SCBS-1; i++) { - scbs[i].next = &(scbs[i+1]); scbs[i].SCpnt = NULL; + memset (scbs, 0, sizeof (scbs)); + for (i = 0; i < MAX_SCBS - 1; i++) { + scbs[i].next = &(scbs[i + 1]); + scbs[i].SCpnt = NULL; } - scbs[MAX_SCBS-1].next = NULL; - scbs[MAX_SCBS-1].SCpnt = NULL; + scbs[MAX_SCBS - 1].next = NULL; + scbs[MAX_SCBS - 1].SCpnt = NULL; + + restore_flags (flags); +} - restore_flags(flags); -} - -static int mail_out( Adapter *host, Scb *scbptr ) +static int mail_out (Adapter *host, Scb *scbptr) /* * Note: this can also be used for ICBs; just cast to the parm type. */ @@ -866,30 +936,35 @@ static int mail_out( Adapter *host, Scb *scbptr ) unchar start_ogmb; Mailbox *ogmbs = host->mb.ogmb; int *next_ogmb = &(host->next_ogmb); -#ifdef DEBUG - printk("wd7000 mail_out: 0x%06lx",(long) scbptr); + +#ifdef WD7000_DEBUG + printk ("wd7000_mail_out: 0x%06lx", (long) scbptr); #endif + /* We first look for a free outgoing mailbox */ - save_flags(flags); - cli(); + save_flags (flags); + cli (); ogmb = *next_ogmb; for (i = 0; i < OGMB_CNT; i++) { - if (ogmbs[ogmb].status == 0) { -#ifdef DEBUG - printk(" using OGMB 0x%x",ogmb); + if (ogmbs[ogmb].status == 0) { +#ifdef WD7000_DEBUG + printk (" using OGMB 0x%x", ogmb); #endif ogmbs[ogmb].status = 1; - any2scsi((unchar *) ogmbs[ogmb].scbptr, (int) scbptr); + any2scsi ((unchar *) ogmbs[ogmb].scbptr, (int) scbptr); - *next_ogmb = (ogmb+1) % OGMB_CNT; + *next_ogmb = (ogmb + 1) % OGMB_CNT; break; - } else + } + else ogmb = (++ogmb) % OGMB_CNT; } - restore_flags(flags); -#ifdef DEBUG - printk(", scb is 0x%06lx",(long) scbptr); + restore_flags (flags); + +#ifdef WD7000_DEBUG + printk (", scb is 0x%06lx", (long) scbptr); #endif + if (i >= OGMB_CNT) { /* * Alternatively, we might issue the "interrupt on free OGMB", @@ -899,171 +974,182 @@ static int mail_out( Adapter *host, Scb *scbptr ) * that marks OGMB's free, waiting even with interrupts off * should work, since they are freed very quickly in most cases. */ - #ifdef DEBUG - printk(", no free OGMBs.\n"); +#ifdef WD7000_DEBUG + printk (", no free OGMBs.\n"); #endif - return 0; + return (0); } - wd7000_enable_intr(host); + wd7000_enable_intr (host); start_ogmb = START_OGMB | ogmb; - command_out( host, &start_ogmb, 1 ); -#ifdef DEBUG - printk(", awaiting interrupt.\n"); + command_out (host, &start_ogmb, 1); + +#ifdef WD7000_DEBUG + printk (", awaiting interrupt.\n"); #endif - return 1; + + return (1); } -int make_code(unsigned hosterr, unsigned scsierr) -{ -#ifdef DEBUG +int make_code (unsigned hosterr, unsigned scsierr) +{ +#ifdef WD7000_DEBUG int in_error = hosterr; #endif - switch ((hosterr>>8)&0xff){ - case 0: /* Reserved */ - hosterr = DID_ERROR; - break; - case 1: /* Command Complete, no errors */ - hosterr = DID_OK; - break; - case 2: /* Command complete, error logged in scb status (scsierr) */ - hosterr = DID_OK; - break; - case 4: /* Command failed to complete - timeout */ - hosterr = DID_TIME_OUT; - break; - case 5: /* Command terminated; Bus reset by external device */ - hosterr = DID_RESET; - break; - case 6: /* Unexpected Command Received w/ host as target */ - hosterr = DID_BAD_TARGET; - break; + switch ((hosterr >> 8) & 0xff) { + case 0: /* Reserved */ + hosterr = DID_ERROR; + break; + case 1: /* Command Complete, no errors */ + hosterr = DID_OK; + break; + case 2: /* Command complete, error logged in scb status (scsierr) */ + hosterr = DID_OK; + break; + case 4: /* Command failed to complete - timeout */ + hosterr = DID_TIME_OUT; + break; + case 5: /* Command terminated; Bus reset by external device */ + hosterr = DID_RESET; + break; + case 6: /* Unexpected Command Received w/ host as target */ + hosterr = DID_BAD_TARGET; + break; case 80: /* Unexpected Reselection */ case 81: /* Unexpected Selection */ - hosterr = DID_BAD_INTR; - break; + hosterr = DID_BAD_INTR; + break; case 82: /* Abort Command Message */ - hosterr = DID_ABORT; - break; + hosterr = DID_ABORT; + break; case 83: /* SCSI Bus Software Reset */ case 84: /* SCSI Bus Hardware Reset */ - hosterr = DID_RESET; - break; + hosterr = DID_RESET; + break; default: /* Reserved */ - hosterr = DID_ERROR; - break; - } -#ifdef DEBUG - if (scsierr||hosterr) - printk("\nSCSI command error: SCSI 0x%02x host 0x%04x return %d\n", - scsierr,in_error,hosterr); + hosterr = DID_ERROR; + } +#ifdef WD7000_DEBUG + if (scsierr || hosterr) + printk ("\nSCSI command error: SCSI 0x%02x host 0x%04x return %d\n", + scsierr, in_error, hosterr); #endif - return scsierr | (hosterr << 16); + return (scsierr | (hosterr << 16)); } -static void wd7000_scsi_done(Scsi_Cmnd * SCpnt) +static void wd7000_scsi_done (Scsi_Cmnd *SCpnt) { -#ifdef DEBUG +#ifdef WD7000_DEBUG printk ("wd7000_scsi_done: 0x%06lx\n", (long) SCpnt); #endif + SCpnt->SCp.phase = 0; } -#define wd7000_intr_ack(host) outb(0,host->iobase+ASC_INTR_ACK) +#define wd7000_intr_ack(host) outb (0, host->iobase + ASC_INTR_ACK) -void wd7000_intr_handle(int irq, void *dev_id, struct pt_regs * regs) +void wd7000_intr_handle (int irq, void *dev_id, struct pt_regs *regs) { register int flag, icmb, errstatus, icmb_status; register int host_error, scsi_error; - register Scb *scb; /* for SCSI commands */ - register IcbAny *icb; /* for host commands */ + register Scb *scb; /* for SCSI commands */ + register IcbAny *icb; /* for host commands */ register Scsi_Cmnd *SCpnt; - Adapter *host = irq2host[irq]; /* This MUST be set!!! */ + Adapter *host = (Adapter *) wd7000_host[irq - IRQ_MIN]->hostdata; /* This MUST be set!!! */ Mailbox *icmbs = host->mb.icmb; -#ifdef DEBUG - printk("wd7000_intr_handle: irq = %d, host = 0x%06lx\n", irq, (long) host); + host->int_counter++; + +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: irq = %d, host = 0x%06lx\n", irq, (long) host); #endif - flag = inb(host->iobase+ASC_INTR_STAT); -#ifdef DEBUG - printk("wd7000_intr_handle: intr stat = 0x%02x\n",flag); + flag = inb (host->iobase + ASC_INTR_STAT); + +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: intr stat = 0x%02x\n", flag); #endif - if (!(inb(host->iobase+ASC_STAT) & INT_IM)) { + if (!(inb (host->iobase + ASC_STAT) & INT_IM)) { /* NB: these are _very_ possible if IRQ 15 is being used, since - it's the "garbage collector" on the 2nd 8259 PIC. Specifically, - any interrupt signal into the 8259 which can't be identified - comes out as 7 from the 8259, which is 15 to the host. Thus, it - is a good thing the WD7000 has an interrupt status port, so we - can sort these out. Otherwise, electrical noise and other such - problems would be indistinguishable from valid interrupts... - */ -#ifdef DEBUG - printk("wd7000_intr_handle: phantom interrupt...\n"); + * it's the "garbage collector" on the 2nd 8259 PIC. Specifically, + * any interrupt signal into the 8259 which can't be identified + * comes out as 7 from the 8259, which is 15 to the host. Thus, it + * is a good thing the WD7000 has an interrupt status port, so we + * can sort these out. Otherwise, electrical noise and other such + * problems would be indistinguishable from valid interrupts... + */ +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: phantom interrupt...\n"); #endif - wd7000_intr_ack(host); - return; + wd7000_intr_ack (host); + return; } - if (flag & MB_INTR) { + if (flag & MB_INTR) { /* The interrupt is for a mailbox */ if (!(flag & IMB_INTR)) { -#ifdef DEBUG - printk("wd7000_intr_handle: free outgoing mailbox\n"); +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: free outgoing mailbox\n"); #endif /* * If sleep_on() and the "interrupt on free OGMB" command are * used in mail_out(), wake_up() should correspondingly be called * here. For now, we don't need to do anything special. */ - wd7000_intr_ack(host); + wd7000_intr_ack (host); return; - } else { + } + else { /* The interrupt is for an incoming mailbox */ icmb = flag & MB_MASK; icmb_status = icmbs[icmb].status; - if (icmb_status & 0x80) { /* unsolicited - result in ICMB */ -#ifdef DEBUG - printk("wd7000_intr_handle: unsolicited interrupt 0x%02xh\n", - icmb_status); + if (icmb_status & 0x80) { /* unsolicited - result in ICMB */ +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: unsolicited interrupt 0x%02x\n", + icmb_status); #endif - wd7000_intr_ack(host); + wd7000_intr_ack (host); return; } - scb = (struct scb *) scsi2int((unchar *)icmbs[icmb].scbptr); + /* Aaaargh! (Zaga) */ + scb = (struct scb *) (scsi2int ((unchar *) icmbs[icmb].scbptr) | PAGE_OFFSET); icmbs[icmb].status = 0; - if (!(scb->op & ICB_OP_MASK)) { /* an SCB is done */ + if (!(scb->op & ICB_OP_MASK)) { /* an SCB is done */ SCpnt = scb->SCpnt; - if (--(SCpnt->SCp.phase) <= 0) { /* all scbs are done */ + if (--(SCpnt->SCp.phase) <= 0) { /* all scbs are done */ host_error = scb->vue | (icmb_status << 8); scsi_error = scb->status; - errstatus = make_code(host_error,scsi_error); + errstatus = make_code (host_error, scsi_error); SCpnt->result = errstatus; - free_scb(scb); + free_scb (scb); - SCpnt->scsi_done(SCpnt); + SCpnt->scsi_done (SCpnt); } - } else { /* an ICB is done */ + } + else { /* an ICB is done */ icb = (IcbAny *) scb; icb->status = icmb_status; - icb->phase = 0; + icb->phase = 0; } - } /* incoming mailbox */ + } /* incoming mailbox */ } - wd7000_intr_ack(host); - return; + wd7000_intr_ack (host); + +#ifdef WD7000_DEBUG + printk ("wd7000_intr_handle: return from interrupt handler\n"); +#endif } -int wd7000_queuecommand(Scsi_Cmnd * SCpnt, void (*done)(Scsi_Cmnd *)) +int wd7000_queuecommand (Scsi_Cmnd *SCpnt, void (*done) (Scsi_Cmnd *)) { register Scb *scb; register Sgb *sgb; @@ -1076,94 +1162,105 @@ int wd7000_queuecommand(Scsi_Cmnd * SCpnt, void (*done)(Scsi_Cmnd *)) idlun = ((SCpnt->target << 5) & 0xe0) | (SCpnt->lun & 7); SCpnt->scsi_done = done; SCpnt->SCp.phase = 1; - scb = alloc_scbs(1); + scb = alloc_scbs (1); scb->idlun = idlun; - memcpy(scb->cdb, cdb, cdblen); + memcpy (scb->cdb, cdb, cdblen); scb->direc = 0x40; /* Disable direction check */ - scb->SCpnt = SCpnt; /* so we can find stuff later */ + scb->SCpnt = SCpnt; /* so we can find stuff later */ SCpnt->host_scribble = (unchar *) scb; scb->host = host; - if (SCpnt->use_sg) { + if (SCpnt->use_sg) { struct scatterlist *sg = (struct scatterlist *) SCpnt->request_buffer; unsigned i; - if (SCpnt->host->sg_tablesize == SG_NONE) { - panic("wd7000_queuecommand: scatter/gather not supported.\n"); + if (SCpnt->host->sg_tablesize == SG_NONE) { + panic ("wd7000_queuecommand: scatter/gather not supported.\n"); } -#ifdef DEBUG - printk("Using scatter/gather with %d elements.\n",SCpnt->use_sg); +#ifdef WD7000_DEBUG + printk ("Using scatter/gather with %d elements.\n", SCpnt->use_sg); #endif sgb = scb->sgb; - scb->op = 1; - any2scsi(scb->dataptr, (int) sgb); - any2scsi(scb->maxlen, SCpnt->use_sg * sizeof (Sgb) ); + scb->op = 1; + any2scsi (scb->dataptr, (int) sgb); + any2scsi (scb->maxlen, SCpnt->use_sg * sizeof (Sgb)); - for (i = 0; i < SCpnt->use_sg; i++) { - any2scsi(sgb[i].ptr, (int) sg[i].address); - any2scsi(sgb[i].len, sg[i].length); + for (i = 0; i < SCpnt->use_sg; i++) { + any2scsi (sgb[i].ptr, (int) sg[i].address); + any2scsi (sgb[i].len, sg[i].length); } - } else { + } + else { scb->op = 0; - any2scsi(scb->dataptr, (int) SCpnt->request_buffer); - any2scsi(scb->maxlen, SCpnt->request_bufflen); + any2scsi (scb->dataptr, (int) SCpnt->request_buffer); + any2scsi (scb->maxlen, SCpnt->request_bufflen); } - while (!mail_out(host, scb)) /* keep trying */; - return 1; + while (!mail_out (host, scb)); /* keep trying */ + + return (1); } -int wd7000_command(Scsi_Cmnd *SCpnt) +int wd7000_command (Scsi_Cmnd *SCpnt) { - wd7000_queuecommand(SCpnt, wd7000_scsi_done); + wd7000_queuecommand (SCpnt, wd7000_scsi_done); - while (SCpnt->SCp.phase > 0) barrier(); /* phase counts scbs down to 0 */ + while (SCpnt->SCp.phase > 0) + barrier (); /* phase counts scbs down to 0 */ - return SCpnt->result; + return (SCpnt->result); } -int wd7000_diagnostics( Adapter *host, int code ) +int wd7000_diagnostics (Adapter *host, int code) { static IcbDiag icb = {ICB_OP_DIAGNOSTICS}; static unchar buf[256]; unsigned long timeout; icb.type = code; - any2scsi(icb.len, sizeof(buf)); - any2scsi(icb.ptr, (int) &buf); + any2scsi (icb.len, sizeof (buf)); + any2scsi (icb.ptr, (int) &buf); icb.phase = 1; /* * This routine is only called at init, so there should be OGMBs * available. I'm assuming so here. If this is going to * fail, I can just let the timeout catch the failure. */ - mail_out(host, (struct scb *) &icb); - timeout = jiffies + WAITnexttimeout; /* wait up to 2 seconds */ + mail_out (host, (struct scb *) &icb); + timeout = jiffies + WAITnexttimeout; /* wait up to 2 seconds */ while (icb.phase && jiffies < timeout) - barrier(); /* wait for completion */ + barrier (); /* wait for completion */ - if (icb.phase) { - printk("wd7000_diagnostics: timed out.\n"); - return 0; + if (icb.phase) { + printk ("wd7000_diagnostics: timed out.\n"); + return (0); } - if (make_code(icb.vue|(icb.status << 8),0)) { - printk("wd7000_diagnostics: failed (0x%02x,0x%02x)\n", - icb.vue, icb.status); - return 0; + if (make_code (icb.vue | (icb.status << 8), 0)) { + printk ("wd7000_diagnostics: failed (0x%02x,0x%02x)\n", + icb.vue, icb.status); + return (0); } - return 1; + return (1); } -int wd7000_init( Adapter *host ) +int wd7000_init (Adapter *host) { - InitCmd init_cmd = { - INITIALIZATION, 7, BUS_ON, BUS_OFF, 0, {0,0,0}, OGMB_CNT, ICMB_CNT + InitCmd init_cmd = + { + INITIALIZATION, + 7, + host->bus_on, + host->bus_off, + 0, + { 0, 0, 0 }, + OGMB_CNT, + ICMB_CNT }; int diag; @@ -1171,84 +1268,78 @@ int wd7000_init( Adapter *host ) * Reset the adapter - only. The SCSI bus was initialized at power-up, * and we need to do this just so we control the mailboxes, etc. */ - outb(ASC_RES, host->iobase+ASC_CONTROL); - delay(1); /* reset pulse: this is 10ms, only need 25us */ - outb(0,host->iobase+ASC_CONTROL); - host->control = 0; /* this must always shadow ASC_CONTROL */ - - if (WAIT (host->iobase+ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) { - printk ("wd7000_init: WAIT timed out.\n"); - return 0; /* 0 = not ok */ + outb (ASC_RES, host->iobase + ASC_CONTROL); + delay (1); /* reset pulse: this is 10ms, only need 25us */ + outb (0, host->iobase + ASC_CONTROL); + host->control = 0; /* this must always shadow ASC_CONTROL */ + + if (WAIT (host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) { + printk ("wd7000_init: WAIT timed out.\n"); + return (0); /* 0 = not ok */ } - if ((diag = inb(host->iobase+ASC_INTR_STAT)) != 1) { - printk("wd7000_init: "); - - switch (diag) { - case 2: - printk("RAM failure.\n"); - break; - case 3: - printk("FIFO R/W failed\n"); - break; - case 4: - printk("SBIC register R/W failed\n"); - break; - case 5: - printk("Initialization D-FF failed.\n"); - break; - case 6: - printk("Host IRQ D-FF failed.\n"); - break; - case 7: - printk("ROM checksum error.\n"); - break; - default: - printk("diagnostic code 0x%02Xh received.\n", diag); + if ((diag = inb (host->iobase + ASC_INTR_STAT)) != 1) { + printk ("wd7000_init: "); + + switch (diag) { + case 2: printk ("RAM failure.\n"); + break; + case 3: printk ("FIFO R/W failed\n"); + break; + case 4: printk ("SBIC register R/W failed\n"); + break; + case 5: printk ("Initialization D-FF failed.\n"); + break; + case 6: printk ("Host IRQ D-FF failed.\n"); + break; + case 7: printk ("ROM checksum error.\n"); + break; + default: printk ("diagnostic code 0x%02Xh received.\n", diag); } - return 0; + return (0); } - + /* Clear mailboxes */ - memset(&(host->mb), 0, sizeof(host->mb)); + memset (&(host->mb), 0, sizeof (host->mb)); /* Execute init command */ - any2scsi((unchar *) &(init_cmd.mailboxes), (int) &(host->mb)); - if (!command_out(host, (unchar *) &init_cmd, sizeof(init_cmd))) { - printk("wd7000_init: adapter initialization failed.\n"); - return 0; + any2scsi ((unchar *) & (init_cmd.mailboxes), (int) &(host->mb)); + if (!command_out (host, (unchar *) &init_cmd, sizeof (init_cmd))) { + printk ("wd7000_init: adapter initialization failed.\n"); + return (0); } - if (WAIT (host->iobase+ASC_STAT, ASC_STATMASK, ASC_INIT, 0)) { - printk ("wd7000_init: WAIT timed out.\n"); - return 0; + if (WAIT (host->iobase + ASC_STAT, ASC_STATMASK, ASC_INIT, 0)) { + printk ("wd7000_init: WAIT timed out.\n"); + return (0); } - if (request_irq(host->irq, wd7000_intr_handle, SA_INTERRUPT, "wd7000", NULL)) { - printk("wd7000_init: can't get IRQ %d.\n", host->irq); - return 0; + if (request_irq (host->irq, wd7000_intr_handle, SA_INTERRUPT, "wd7000", NULL)) { + printk ("wd7000_init: can't get IRQ %d.\n", host->irq); + return (0); } - if (request_dma(host->dma,"wd7000")) { - printk("wd7000_init: can't get DMA channel %d.\n", host->dma); - free_irq(host->irq, NULL); - return 0; + if (request_dma (host->dma, "wd7000")) { + printk ("wd7000_init: can't get DMA channel %d.\n", host->dma); + free_irq (host->irq, NULL); + return (0); } - wd7000_enable_dma(host); - wd7000_enable_intr(host); + wd7000_enable_dma (host); + wd7000_enable_intr (host); - if (!wd7000_diagnostics(host,ICB_DIAG_FULL)) { - free_dma(host->dma); - free_irq(host->irq, NULL); - return 0; + if (!wd7000_diagnostics (host, ICB_DIAG_FULL)) { + free_dma (host->dma); + free_irq (host->irq, NULL); + return (0); } - return 1; + return (1); } -void wd7000_revision(Adapter *host) +void wd7000_revision (Adapter *host) { - static IcbRevLvl icb = {ICB_OP_GET_REVISION}; + static IcbRevLvl icb = + {ICB_OP_GET_REVISION}; icb.phase = 1; /* @@ -1257,14 +1348,160 @@ void wd7000_revision(Adapter *host) * the only damage will be that the revision will show up as 0.0, * which in turn means that scatter/gather will be disabled. */ - mail_out(host, (struct scb *) &icb); + mail_out (host, (struct scb *) &icb); while (icb.phase) - barrier(); /* wait for completion */ + barrier (); /* wait for completion */ host->rev1 = icb.primary; host->rev2 = icb.secondary; } +#undef SPRINTF +#define SPRINTF(args...) { if (pos < (buffer + length)) pos += sprintf (pos, ## args); } + +int wd7000_set_info (char *buffer, int length, struct Scsi_Host *host) +{ + unsigned long flags; + + save_flags (flags); + cli (); + +#ifdef WD7000_DEBUG + printk ("Buffer = <%.*s>, length = %d\n", length, buffer, length); +#endif + + /* + * Currently this is a no-op + */ + printk ("Sorry, this function is currently out of order...\n"); + + restore_flags (flags); + + return (length); +} + + +int wd7000_proc_info (char *buffer, char **start, off_t offset, int length, int hostno, int inout) +{ + struct Scsi_Host *host = NULL; + Scsi_Device *scd; + Adapter *adapter; + unsigned long flags; + char *pos = buffer; + short i; + +#ifdef WD7000_DEBUG + Mailbox *ogmbs, *icmbs; + short count; +#endif + + /* + * Find the specified host board. + */ + for (i = 0; i < IRQS; i++) + if (wd7000_host[i] && (wd7000_host[i]->host_no == hostno)) { + host = wd7000_host[i]; + + break; + } + + /* + * Host not found! + */ + if (! host) + return (-ESRCH); + + /* + * Has data been written to the file ? + */ + if (inout) + return (wd7000_set_info (buffer, length, host)); + + adapter = (Adapter *) host->hostdata; + + save_flags (flags); + cli (); + + SPRINTF ("Host scsi%d: Western Digital WD-7000 (rev %d.%d)\n", hostno, adapter->rev1, adapter->rev2); + SPRINTF (" IO base: 0x%x\n", adapter->iobase); + SPRINTF (" IRQ: %d\n", adapter->irq); + SPRINTF (" DMA channel: %d\n", adapter->dma); + SPRINTF (" Interrupts: %d\n", adapter->int_counter); + SPRINTF (" BUS_ON time: %d nanoseconds\n", adapter->bus_on * 125); + SPRINTF (" BUS_OFF time: %d nanoseconds\n", adapter->bus_off * 125); + +#ifdef WD7000_DEBUG + ogmbs = adapter->mb.ogmb; + icmbs = adapter->mb.icmb; + + SPRINTF ("\nControl port value: 0x%x\n", adapter->control); + SPRINTF ("Incoming mailbox:\n"); + SPRINTF (" size: %d\n", ICMB_CNT); + SPRINTF (" queued messages: "); + + for (i = count = 0; i < ICMB_CNT; i++) + if (icmbs[i].status) { + count++; + SPRINTF ("0x%x ", i); + } + + SPRINTF (count ? "\n" : "none\n"); + + SPRINTF ("Outgoing mailbox:\n"); + SPRINTF (" size: %d\n", OGMB_CNT); + SPRINTF (" next message: 0x%x\n", adapter->next_ogmb); + SPRINTF (" queued messages: "); + + for (i = count = 0; i < OGMB_CNT; i++) + if (ogmbs[i].status) { + count++; + SPRINTF ("0x%x ", i); + } + + SPRINTF (count ? "\n" : "none\n"); +#endif + + /* + * Display driver information for each device attached to the board. + */ + scd = host->host_queue; + + SPRINTF ("\nAttached devices: %s\n", scd ? "" : "none"); + + for ( ; scd; scd = scd->next) + if (scd->host->host_no == hostno) { + SPRINTF (" [Channel: %02d, Id: %02d, Lun: %02d] ", + scd->channel, scd->id, scd->lun); + SPRINTF ("%s ", (scd->type < MAX_SCSI_DEVICE_CODE) ? + scsi_device_types[(short) scd->type] : "Unknown device"); + + for (i = 0; (i < 8) && (scd->vendor[i] >= 0x20); i++) + SPRINTF ("%c", scd->vendor[i]); + SPRINTF (" "); + + for (i = 0; (i < 16) && (scd->model[i] >= 0x20); i++) + SPRINTF ("%c", scd->model[i]); + SPRINTF ("\n"); + } + + SPRINTF ("\n"); + + restore_flags (flags); + + /* + * Calculate start of next buffer, and return value. + */ + *start = buffer + offset; + + if ((pos - buffer) < offset) + return (0); + else if ((pos - buffer - offset) < length) + return (pos - buffer - offset); + else + return (length); +} + + /* * Returns the number of adapters this driver is supporting. * @@ -1277,84 +1514,102 @@ void wd7000_revision(Adapter *host) */ int wd7000_detect (Scsi_Host_Template *tpnt) { - short present = 0, biosaddr_ptr, cfg_ptr, sig_ptr, i, pass; + short present = 0, biosaddr_ptr, sig_ptr, i, pass; short biosptr[NUM_CONFIGS]; unsigned iobase; Adapter *host = NULL; struct Scsi_Host *sh; - for (i = 0; i < NUM_CONFIGS; biosptr[i++] = -1); +#ifdef WD7000_DEBUG + printk ("wd7000_detect: started\n"); +#endif + + for (i = 0; i < IRQS; wd7000_host[i++] = NULL) ; + for (i = 0; i < NUM_CONFIGS; biosptr[i++] = -1) ; tpnt->proc_dir = &proc_scsi_wd7000; + tpnt->proc_info = &wd7000_proc_info; /* * Set up SCB free list, which is shared by all adapters */ init_scbs (); - for (pass = 0, cfg_ptr = 0; pass < NUM_CONFIGS; pass++) { - for (biosaddr_ptr = 0; biosaddr_ptr < NUM_ADDRS; biosaddr_ptr++) + for (pass = 0; pass < NUM_CONFIGS; pass++) { + /* + * First, search for BIOS SIGNATURE... + */ + for (biosaddr_ptr = 0; biosaddr_ptr < NUM_ADDRS; biosaddr_ptr++) for (sig_ptr = 0; sig_ptr < NUM_SIGNATURES; sig_ptr++) { - for (i = 0; i < pass; i++) - if (biosptr[i] == biosaddr_ptr) - break; - - if ((i == pass) && - check_signature(wd7000_biosaddr[biosaddr_ptr] + - signatures[sig_ptr].ofs, - signatures[sig_ptr].sig, - signatures[sig_ptr].len)) - goto bios_matched; - } + for (i = 0; i < pass; i++) + if (biosptr[i] == biosaddr_ptr) + break; -bios_matched: + if (i == pass) { +#if (LINUX_VERSION_CODE < 0x020100) +#else + void *biosaddr = ioremap (wd7000_biosaddr[biosaddr_ptr] + + signatures[sig_ptr].ofs, + signatures[sig_ptr].len); +#endif + short bios_match = memcmp ((char *) biosaddr, signatures[sig_ptr].sig, + signatures[sig_ptr].len); + +#if (LINUX_VERSION_CODE < 0x020100) +#else + iounmap (biosaddr); +#endif -#ifdef DEBUG + if (! bios_match) + goto bios_matched; + } + } + + bios_matched: + /* + * BIOS SIGNATURE has been found. + */ +#ifdef WD7000_DEBUG printk ("wd7000_detect: pass %d\n", pass + 1); - if (biosaddr_ptr == NUM_ADDRS) + if (biosaddr_ptr == NUM_ADDRS) printk ("WD-7000 SST BIOS not detected...\n"); else printk ("WD-7000 SST BIOS detected at 0x%lx: checking...\n", - wd7000_biosaddr[biosaddr_ptr]); + wd7000_biosaddr[biosaddr_ptr]); #endif - if (wd7000_card_num) - iobase = wd7000_setupIO[wd7000_card_num - 1]; - else { - if (configs[cfg_ptr++].irq < 0) - continue; + if (configs[pass].irq < 0) + continue; - iobase = configs[cfg_ptr - 1].iobase; - } + iobase = configs[pass].iobase; -#ifdef DEBUG - printk ("wd7000_detect: check IO 0x%x region...\n", iobase); +#ifdef WD7000_DEBUG + printk ("wd7000_detect: check IO 0x%x region...\n", iobase); #endif - if (! check_region (iobase, 4)) { + if (!check_region (iobase, 4)) { -#ifdef DEBUG - printk ("wd7000_detect: ASC reset (IO 0x%x) ...", iobase); +#ifdef WD7000_DEBUG + printk ("wd7000_detect: ASC reset (IO 0x%x) ...", iobase); #endif - - /* - * ASC reset... - */ - outb (ASC_RES, iobase + ASC_CONTROL); - delay (1); - outb (0, iobase + ASC_CONTROL); - - if (WAIT (iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) -#ifdef DEBUG - { - printk ("failed!\n"); - continue; - } - else - printk ("ok!\n"); + /* + * ASC reset... + */ + outb (ASC_RES, iobase + ASC_CONTROL); + delay (1); + outb (0, iobase + ASC_CONTROL); + + if (WAIT (iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) +#ifdef WD7000_DEBUG + { + printk ("failed!\n"); + continue; + } + else + printk ("ok!\n"); #else - continue; + continue; #endif if (inb (iobase + ASC_INTR_STAT) == 1) { @@ -1368,33 +1623,27 @@ bios_matched: sh = scsi_register (tpnt, sizeof (Adapter)); host = (Adapter *) sh->hostdata; -#ifdef DEBUG - printk ("wd7000_detect: adapter allocated at 0x%x\n", - (int) host); +#ifdef WD7000_DEBUG + printk ("wd7000_detect: adapter allocated at 0x%x\n", (int) host); #endif memset (host, 0, sizeof (Adapter)); - if (wd7000_card_num) { - host->irq = wd7000_setupIRQ[--wd7000_card_num]; - host->dma = wd7000_setupDMA[wd7000_card_num]; - } - else { - host->irq = configs[cfg_ptr - 1].irq; - host->dma = configs[cfg_ptr - 1].dma; - } - - host->sh = sh; - host->iobase = iobase; - irq2host[host->irq] = host; + host->irq = configs[pass].irq; + host->dma = configs[pass].dma; + host->iobase = iobase; + host->int_counter = 0; + host->bus_on = configs[pass].bus_on; + host->bus_off = configs[pass].bus_off; + host->sh = wd7000_host[host->irq - IRQ_MIN] = sh; -#ifdef DEBUG +#ifdef WD7000_DEBUG printk ("wd7000_detect: Trying init WD-7000 card at IO " "0x%x, IRQ %d, DMA %d...\n", host->iobase, host->irq, host->dma); #endif - if (! wd7000_init (host)) { /* Initialization failed */ + if (!wd7000_init (host)) { /* Initialization failed */ scsi_unregister (sh); continue; @@ -1403,7 +1652,7 @@ bios_matched: /* * OK from here - we'll use this adapter/configuration. */ - wd7000_revision (host); /* important for scatter/gather */ + wd7000_revision (host); /* important for scatter/gather */ /* * Register our ports. @@ -1411,34 +1660,34 @@ bios_matched: request_region (host->iobase, 4, "wd7000"); /* - * For boards before rev 6.0, scatter/gather - * isn't supported. + * For boards before rev 6.0, scatter/gather isn't supported. */ if (host->rev1 < 6) sh->sg_tablesize = SG_NONE; - present++; /* count it */ + present++; /* count it */ if (biosaddr_ptr != NUM_ADDRS) biosptr[pass] = biosaddr_ptr; printk ("Western Digital WD-7000 (rev %d.%d) ", host->rev1, host->rev2); - printk ("using IO 0x%x, IRQ %d, DMA %d.\n", + printk ("using IO 0x%x, IRQ %d, DMA %d.\n", host->iobase, host->irq, host->dma); + printk (" BUS_ON time: %dns, BUS_OFF time: %dns\n", + host->bus_on * 125, host->bus_off * 125); } } -#ifdef DEBUG +#ifdef WD7000_DEBUG else - printk ("wd7000_detect: IO 0x%x region already allocated!\n", - iobase); + printk ("wd7000_detect: IO 0x%x region already allocated!\n", iobase); #endif } - if (! present) - printk ("Failed initialization of WD-7000 SCSI card!\n"); + if (!present) + printk ("Failed initialization of WD-7000 SCSI card!\n"); return (present); } @@ -1447,42 +1696,81 @@ bios_matched: /* * I have absolutely NO idea how to do an abort with the WD7000... */ -int wd7000_abort(Scsi_Cmnd * SCpnt) +int wd7000_abort (Scsi_Cmnd *SCpnt) { Adapter *host = (Adapter *) SCpnt->host->hostdata; - if (inb(host->iobase+ASC_STAT) & INT_IM) { - printk("wd7000_abort: lost interrupt\n"); - wd7000_intr_handle(host->irq, NULL, NULL); - return SCSI_ABORT_SUCCESS; + if (inb (host->iobase + ASC_STAT) & INT_IM) { + printk ("wd7000_abort: lost interrupt\n"); + wd7000_intr_handle (host->irq, NULL, NULL); + + return (SCSI_ABORT_SUCCESS); } - return SCSI_ABORT_SNOOZE; + return (SCSI_ABORT_SNOOZE); } /* * I also have no idea how to do a reset... */ -int wd7000_reset(Scsi_Cmnd * SCpnt, unsigned int ignored) +int wd7000_reset (Scsi_Cmnd *SCpnt, unsigned int unused) { - return SCSI_RESET_PUNT; + return (SCSI_RESET_PUNT); } /* - * This was borrowed directly from aha1542.c, but my disks are organized - * this way, so I think it will work OK. Someone who is ambitious can - * borrow a newer or more complete version from another driver. + * This was borrowed directly from aha1542.c. (Zaga) */ -int wd7000_biosparam(Disk * disk, kdev_t dev, int* ip) +int wd7000_biosparam (Disk *disk, kdev_t dev, int *ip) { - int size = disk->capacity; - ip[0] = 64; - ip[1] = 32; - ip[2] = size >> 11; -/* if (ip[2] >= 1024) ip[2] = 1024; */ - return 0; +#ifdef WD7000_DEBUG + printk ("wd7000_biosparam: dev=%s, size=%d, ", kdevname (dev), disk->capacity); +#endif + + /* + * try default translation + */ + ip[0] = 64; + ip[1] = 32; + ip[2] = disk->capacity / (64 * 32); + + /* + * for disks >1GB do some guessing + */ + if (ip[2] >= 1024) { + int info[3]; + + /* + * try to figure out the geometry from the partition table + */ + if ((scsicam_bios_param (disk, dev, info) < 0) || + !(((info[0] == 64) && (info[1] == 32)) || + ((info[0] == 255) && (info[1] == 63)))) { + printk ("wd7000_biosparam: unable to verify geometry for disk with >1GB.\n" + " using extended translation.\n"); + + ip[0] = 255; + ip[1] = 63; + ip[2] = disk->capacity / (255 * 63); + } + else { + ip[0] = info[0]; + ip[1] = info[1]; + ip[2] = info[2]; + + if (info[0] == 255) + printk ("wd7000_biosparam: current partition table is using extended translation.\n"); + } + } + +#ifdef WD7000_DEBUG + printk ("bios geometry: head=%d, sec=%d, cyl=%d\n", ip[0], ip[1], ip[2]); + printk ("WARNING: check, if the bios geometry is correct.\n"); +#endif + + return (0); } #ifdef MODULE |