Commit cc0f78fc authored by Russell King's avatar Russell King

[ARM] Update Acorn SCSI drivers

- Add scsi devclass support.
- Convert to use ioremap and friends.
- Fix oops which can occur when driver claims interrupt, and there's
  an interrupt pending - move to a two-level fas driver initialisation.
parent 299c2e86
......@@ -3110,7 +3110,8 @@ static struct ecard_driver acornscsi_driver = {
.remove = __devexit_p(acornscsi_remove),
.id_table = acornscsi_cids,
.drv = {
.name = "acornscsi",
.devclass = &shost_devclass,
.name = "acornscsi",
},
};
......
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......@@ -334,7 +334,8 @@ static struct ecard_driver cumanascsi1_driver = {
.remove = __devexit_p(cumanascsi1_remove),
.id_table = cumanascsi1_cids,
.drv = {
.name = "cumanascsi1",
.devclass = &shost_devclass,
.name = "cumanascsi1",
},
};
......
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......@@ -22,18 +22,18 @@
/* FAS register definitions */
/* transfer count low */
#define REG_CTCL(x) ((x)->scsi.io_port)
#define REG_STCL(x) ((x)->scsi.io_port)
#define REG_CTCL (0)
#define REG_STCL (0)
/* transfer count medium */
#define REG_CTCM(x) ((x)->scsi.io_port + (1 << (x)->scsi.io_shift))
#define REG_STCM(x) ((x)->scsi.io_port + (1 << (x)->scsi.io_shift))
#define REG_CTCM (1)
#define REG_STCM (1)
/* fifo data */
#define REG_FF(x) ((x)->scsi.io_port + (2 << (x)->scsi.io_shift))
#define REG_FF (2)
/* command */
#define REG_CMD(x) ((x)->scsi.io_port + (3 << (x)->scsi.io_shift))
#define REG_CMD (3)
#define CMD_NOP 0x00
#define CMD_FLUSHFIFO 0x01
#define CMD_RESETCHIP 0x02
......@@ -57,7 +57,7 @@
#define CMD_WITHDMA 0x80
/* status register (read) */
#define REG_STAT(x) ((x)->scsi.io_port + (4 << (x)->scsi.io_shift))
#define REG_STAT (4)
#define STAT_IO (1 << 0) /* IO phase */
#define STAT_CD (1 << 1) /* CD phase */
#define STAT_MSG (1 << 2) /* MSG phase */
......@@ -76,11 +76,11 @@
#define STAT_MESGIN (STAT_MSG|STAT_CD|STAT_IO) /* Message In */
/* bus ID for select / reselect */
#define REG_SDID(x) ((x)->scsi.io_port + (4 << (x)->scsi.io_shift))
#define REG_SDID (4)
#define BUSID(target) ((target) & 7)
/* Interrupt status register (read) */
#define REG_INST(x) ((x)->scsi.io_port + (5 << (x)->scsi.io_shift))
#define REG_INST (5)
#define INST_SELWOATN (1 << 0) /* Select w/o ATN */
#define INST_SELATN (1 << 1) /* Select w/ATN */
#define INST_RESELECTED (1 << 2) /* Reselected */
......@@ -91,10 +91,10 @@
#define INST_BUSRESET (1 << 7) /* SCSI Bus reset */
/* Timeout register (write) */
#define REG_STIM(x) ((x)->scsi.io_port + (5 << (x)->scsi.io_shift))
#define REG_STIM (5)
/* Sequence step register (read) */
#define REG_IS(x) ((x)->scsi.io_port + (6 << (x)->scsi.io_shift))
#define REG_IS (6)
#define IS_BITS 0x07
#define IS_SELARB 0x00 /* Select & Arb ok */
#define IS_MSGBYTESENT 0x01 /* One byte message sent*/
......@@ -104,18 +104,18 @@
#define IS_SOF 0x08 /* Sync off flag */
/* Transfer period step (write) */
#define REG_STP(x) ((x)->scsi.io_port + (6 << (x)->scsi.io_shift))
#define REG_STP (6)
/* Synchronous Offset (write) */
#define REG_SOF(x) ((x)->scsi.io_port + (7 << (x)->scsi.io_shift))
#define REG_SOF (7)
/* Fifo state register (read) */
#define REG_CFIS(x) ((x)->scsi.io_port + (7 << (x)->scsi.io_shift))
#define REG_CFIS (7)
#define CFIS_CF 0x1f /* Num bytes in FIFO */
#define CFIS_IS 0xe0 /* Step */
/* config register 1 */
#define REG_CNTL1(x) ((x)->scsi.io_port + (8 << (x)->scsi.io_shift))
#define REG_CNTL1 (8)
#define CNTL1_CID (7 << 0) /* Chip ID */
#define CNTL1_STE (1 << 3) /* Self test enable */
#define CNTL1_PERE (1 << 4) /* Parity enable reporting en. */
......@@ -124,7 +124,7 @@
#define CNTL1_ETM (1 << 7) /* Extended Timing Mode */
/* Clock conversion factor (read) */
#define REG_CLKF(x) ((x)->scsi.io_port + (9 << (x)->scsi.io_shift))
#define REG_CLKF (9)
#define CLKF_F37MHZ 0x00 /* 35.01 - 40 MHz */
#define CLKF_F10MHZ 0x02 /* 10 MHz */
#define CLKF_F12MHZ 0x03 /* 10.01 - 15 MHz */
......@@ -134,13 +134,13 @@
#define CLKF_F32MHZ 0x07 /* 30.01 - 35 MHz */
/* Chip test register (write) */
#define REG0_FTM(x) ((x)->scsi.io_port + (10 << (x)->scsi.io_shift))
#define REG_FTM (10)
#define TEST_FTM 0x01 /* Force target mode */
#define TEST_FIM 0x02 /* Force initiator mode */
#define TEST_FHI 0x04 /* Force high impedance mode */
/* Configuration register 2 (read/write) */
#define REG_CNTL2(x) ((x)->scsi.io_port + (11 << (x)->scsi.io_shift))
#define REG_CNTL2 (11)
#define CNTL2_PGDP (1 << 0) /* Pass Th/Generate Data Parity */
#define CNTL2_PGRP (1 << 1) /* Pass Th/Generate Reg Parity */
#define CNTL2_ACDPE (1 << 2) /* Abort on Cmd/Data Parity Err */
......@@ -151,7 +151,7 @@
#define CNTL2_DAE (1 << 7) /* Data Alignment Enable */
/* Configuration register 3 (read/write) */
#define REG_CNTL3(x) ((x)->scsi.io_port + (12 << (x)->scsi.io_shift))
#define REG_CNTL3 (12)
#define CNTL3_BS8 (1 << 0) /* Burst size 8 */
#define CNTL3_MDM (1 << 1) /* Modify DMA mode */
#define CNTL3_LBTM (1 << 2) /* Last Byte Transfer mode */
......@@ -162,14 +162,14 @@
#define CNTL3_ADIDCHK (1 << 7) /* Additional ID check */
/* High transfer count (read/write) */
#define REG_CTCH(x) ((x)->scsi.io_port + (14 << (x)->scsi.io_shift))
#define REG_STCH(x) ((x)->scsi.io_port + (14 << (x)->scsi.io_shift))
#define REG_CTCH (14)
#define REG_STCH (14)
/* ID reigster (read only) */
#define REG1_ID(x) ((x)->scsi.io_port + (14 << (x)->scsi.io_shift))
/* ID register (read only) */
#define REG_ID (14)
/* Data alignment */
#define REG0_DAL(x) ((x)->scsi.io_port + (15 << (x)->scsi.io_shift))
#define REG_DAL (15)
typedef enum {
PHASE_IDLE, /* we're not planning on doing anything */
......@@ -212,6 +212,9 @@ typedef enum {
#define MAGIC 0x441296bdUL
#define NR_MSGS 8
#define FASCAP_DMA (1 << 0)
#define FASCAP_PSEUDODMA (1 << 1)
typedef struct {
unsigned long magic_start;
spinlock_t host_lock;
......@@ -233,12 +236,13 @@ typedef struct {
/* driver information */
struct {
phase_t phase; /* current phase */
void *io_base; /* iomem base of FAS216 */
unsigned int io_port; /* base address of FAS216 */
unsigned int io_shift; /* shift to adjust reg offsets by */
unsigned int irq; /* interrupt */
unsigned char cfg[4]; /* configuration registers */
const char *type; /* chip type */
phase_t phase; /* current phase */
unsigned int irq; /* interrupt */
struct {
unsigned char target; /* reconnected target */
......@@ -253,7 +257,6 @@ typedef struct {
unsigned int async_stp; /* Async transfer STP value */
unsigned char msgin_fifo; /* bytes in fifo at time of message in */
unsigned char message[256]; /* last message received from device */
unsigned int msglen; /* length of last message received */
unsigned char disconnectable:1; /* this command can be disconnected */
unsigned char aborting:1; /* aborting command */
......@@ -281,6 +284,7 @@ typedef struct {
unsigned char wide_max_size; /* Maximum wide transfer size */
unsigned char cntl3; /* Control Reg 3 */
unsigned int asyncperiod; /* Async transfer period (ns) */
unsigned int capabilities; /* driver capabilities */
unsigned int disconnect_ok:1; /* Disconnects allowed? */
} ifcfg;
......@@ -319,26 +323,18 @@ typedef struct {
} FAS216_Info;
/* Function: int fas216_init (struct Scsi_Host *instance)
* Purpose : initialise FAS/NCR/AMD SCSI ic.
* Purpose : initialise FAS/NCR/AMD SCSI structures.
* Params : instance - a driver-specific filled-out structure
* Returns : 0 on success
*/
extern int fas216_init (struct Scsi_Host *instance);
/* Function: int fas216_abort (Scsi_Cmnd *SCpnt)
* Purpose : abort a command if something horrible happens.
* Params : SCpnt - Command that is believed to be causing a problem.
* Returns : one of SCSI_ABORT_ macros.
*/
extern int fas216_abort (Scsi_Cmnd *);
/* Function: int fas216_reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
* Purpose : resets the adapter if something horrible happens.
* Params : SCpnt - Command that is believed to be causing a problem.
* reset_flags - flags indicating reset type that is believed to be required.
* Returns : one of SCSI_RESET_ macros, or'd with the SCSI_RESET_*_RESET macros.
/* Function: int fas216_add (struct Scsi_Host *instance, struct device *dev)
* Purpose : initialise FAS/NCR/AMD SCSI ic.
* Params : instance - a driver-specific filled-out structure
* Returns : 0 on success
*/
extern int fas216_reset (Scsi_Cmnd *, unsigned int);
extern int fas216_add (struct Scsi_Host *instance, struct device *dev);
/* Function: int fas216_queue_command (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
* Purpose : queue a command for adapter to process.
......@@ -355,20 +351,21 @@ extern int fas216_queue_command (Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
*/
extern int fas216_command (Scsi_Cmnd *);
/* Function: void fas216_intr (struct Scsi_Host *instance)
/* Function: void fas216_intr (FAS216_Info *info)
* Purpose : handle interrupts from the interface to progress a command
* Params : instance - interface to service
* Params : info - interface to service
*/
extern void fas216_intr (struct Scsi_Host *instance);
extern void fas216_intr (FAS216_Info *info);
extern void fas216_remove (struct Scsi_Host *instance);
/* Function: int fas216_release (struct Scsi_Host *instance)
/* Function: void fas216_release (struct Scsi_Host *instance)
* Purpose : release all resources and put everything to bed for FAS/NCR/AMD SCSI ic.
* Params : instance - a driver-specific filled-out structure
* Returns : 0 on success
*/
extern int fas216_release (struct Scsi_Host *instance);
extern void fas216_release (struct Scsi_Host *instance);
extern int fas216_info(FAS216_Info *info, char *buffer);
extern int fas216_print_host(FAS216_Info *info, char *buffer);
extern int fas216_print_stats(FAS216_Info *info, char *buffer);
extern int fas216_print_device(FAS216_Info *info, Scsi_Device *scd, char *buffer);
......
......@@ -192,7 +192,8 @@ static struct ecard_driver oakscsi_driver = {
.remove = __devexit_p(oakscsi_remove),
.id_table = oakscsi_cids,
.drv = {
.name = "oakscsi",
.devclass = &shost_devclass,
.name = "oakscsi",
},
};
......
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......@@ -55,8 +55,6 @@ static inline unsigned char get_next_SCp_byte(Scsi_Pointer *SCp)
SCp->ptr += 1;
SCp->this_residual -= 1;
if (SCp->this_residual == 0)
next_SCp(SCp);
return c;
}
......@@ -66,8 +64,6 @@ static inline void put_next_SCp_byte(Scsi_Pointer *SCp, unsigned char c)
*SCp->ptr = c;
SCp->ptr += 1;
SCp->this_residual -= 1;
if (SCp->this_residual == 0)
next_SCp(SCp);
}
static inline void init_SCp(Scsi_Cmnd *SCpnt)
......@@ -112,7 +108,7 @@ static inline void init_SCp(Scsi_Cmnd *SCpnt)
* we aren't interested in the buffer pointer.
*/
if (SCpnt->SCp.this_residual == 0 && SCpnt->SCp.ptr) {
#ifdef BELT_AND_BRACES
#if 0 //def BELT_AND_BRACES
printk(KERN_WARNING "scsi%d.%c: zero length buffer passed for "
"command ", SCpnt->host->host_no, '0' + SCpnt->target);
print_command(SCpnt->cmnd);
......
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