diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2000-02-24 00:12:35 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2000-02-24 00:12:35 +0000 |
commit | 482368b1a8e45430672c58c9a42e7d2004367126 (patch) | |
tree | ce2a1a567d4d62dee7c2e71a46a99cf72cf1d606 /drivers/scsi/sun3_scsi.h | |
parent | e4d0251c6f56ab2e191afb70f80f382793e23f74 (diff) |
Merge with 2.3.47. Guys, this is buggy as shit. You've been warned.
Diffstat (limited to 'drivers/scsi/sun3_scsi.h')
-rw-r--r-- | drivers/scsi/sun3_scsi.h | 262 |
1 files changed, 259 insertions, 3 deletions
diff --git a/drivers/scsi/sun3_scsi.h b/drivers/scsi/sun3_scsi.h index c677bfbf6..b94f586aa 100644 --- a/drivers/scsi/sun3_scsi.h +++ b/drivers/scsi/sun3_scsi.h @@ -1,6 +1,8 @@ /* * Sun3 SCSI stuff by Erik Verbruggen (erik@bigmama.xtdnet.nl) * + * Sun3 DMA additions by Sam Creasey (sammy@oh.verio.com) + * * Adapted from mac_scsinew.h: */ /* @@ -102,18 +104,272 @@ use_clustering: DISABLE_CLUSTERING \ #define NCR5380_setup(instance) \ _instance = instance -#define NCR5380_read(reg) sun3scsi_read(_instance, reg) -#define NCR5380_write(reg, value) sun3scsi_write(_instance, reg, value) +#define NCR5380_read(reg) sun3scsi_read(reg) +#define NCR5380_write(reg, value) sun3scsi_write(reg, value) #define NCR5380_intr sun3scsi_intr #define NCR5380_queue_command sun3scsi_queue_command -#define NCR5380_abort sun3scsi_abort #define NCR5380_reset sun3scsi_reset +#define NCR5380_abort sun3scsi_abort #define NCR5380_proc_info sun3scsi_proc_info +#define NCR5380_dma_xfer_len(i, cmd, phase) \ + sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1) + +#define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1) +#define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0) +#define NCR5380_dma_residual sun3scsi_dma_residual #define BOARD_NORMAL 0 #define BOARD_NCR53C400 1 +/* additional registers - mainly DMA control regs */ +/* these start at regbase + 8 -- directly after the NCR regs */ +struct sun3_dma_regs { + unsigned short vmeregs[4]; /* unimpl vme stuff */ + unsigned short udc_data; /* udc dma data reg */ + unsigned short udc_addr; /* uda dma addr reg */ + unsigned short fifo_data; /* fifo data reg, holds extra byte on + odd dma reads */ + unsigned short fifo_count; + unsigned short csr; /* control/status reg */ +}; + +/* ucd chip specific regs - live in dvma space */ +struct sun3_udc_regs { + unsigned short rsel; /* select regs to load */ + unsigned short addr_hi; /* high word of addr */ + unsigned short addr_lo; /* low word */ + unsigned short count; /* words to be xfer'd */ + unsigned short mode_hi; /* high word of channel mode */ + unsigned short mode_lo; /* low word of channel mode */ +}; + +/* addresses of the udc registers */ +#define UDC_MODE 0x38 +#define UDC_CSR 0x2e /* command/status */ +#define UDC_CHN_HI 0x26 /* chain high word */ +#define UDC_CHN_LO 0x22 /* chain lo word */ +#define UDC_CURA_HI 0x1a /* cur reg A high */ +#define UDC_CURA_LO 0x0a /* cur reg A low */ +#define UDC_CURB_HI 0x12 /* cur reg B high */ +#define UDC_CURB_LO 0x02 /* cur reg B low */ +#define UDC_MODE_HI 0x56 /* mode reg high */ +#define UDC_MODE_LO 0x52 /* mode reg low */ +#define UDC_COUNT 0x32 /* words to xfer */ + +/* some udc commands */ +#define UDC_RESET 0 +#define UDC_CHN_START 0xa0 /* start chain */ +#define UDC_INT_ENABLE 0x32 /* channel 1 int on */ + +/* udc mode words */ +#define UDC_MODE_HIWORD 0x40 +#define UDC_MODE_LSEND 0xc2 +#define UDC_MODE_LRECV 0xd2 + +/* udc reg selections */ +#define UDC_RSEL_SEND 0x282 +#define UDC_RSEL_RECV 0x182 + +/* bits in csr reg */ +#define CSR_DMA_ACTIVE 0x8000 +#define CSR_DMA_CONFLICT 0x4000 +#define CSR_DMA_BUSERR 0x2000 + +#define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */ +#define CSR_SDB_INT 0x200 /* sbc interrupt pending */ +#define CSR_DMA_INT 0x100 /* dma interrupt pending */ + +#define CSR_SEND 0x8 /* 1 = send 0 = recv */ +#define CSR_FIFO 0x2 /* reset fifo */ +#define CSR_INTR 0x4 /* interrupt enable */ +#define CSR_SCSI 0x1 + +// debugging printk's, taken from atari_scsi.h +/* Debugging printk definitions: + * + * ARB -> arbitration + * ASEN -> auto-sense + * DMA -> DMA + * HSH -> PIO handshake + * INF -> information transfer + * INI -> initialization + * INT -> interrupt + * LNK -> linked commands + * MAIN -> NCR5380_main() control flow + * NDAT -> no data-out phase + * NWR -> no write commands + * PIO -> PIO transfers + * PDMA -> pseudo DMA (unused on Atari) + * QU -> queues + * RSL -> reselections + * SEL -> selections + * USL -> usleep cpde (unused on Atari) + * LBS -> last byte sent (unused on Atari) + * RSS -> restarting of selections + * EXT -> extended messages + * ABRT -> aborting and resetting + * TAG -> queue tag handling + * MER -> merging of consec. buffers + * + */ + + + +#if NDEBUG & NDEBUG_ARBITRATION +#define ARB_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define ARB_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_AUTOSENSE +#define ASEN_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define ASEN_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_DMA +#define DMA_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define DMA_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_HANDSHAKE +#define HSH_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define HSH_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_INFORMATION +#define INF_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define INF_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_INIT +#define INI_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define INI_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_INTR +#define INT_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define INT_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_LINKED +#define LNK_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define LNK_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_MAIN +#define MAIN_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define MAIN_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_NO_DATAOUT +#define NDAT_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define NDAT_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_NO_WRITE +#define NWR_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define NWR_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_PIO +#define PIO_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define PIO_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_PSEUDO_DMA +#define PDMA_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define PDMA_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_QUEUES +#define QU_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define QU_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_RESELECTION +#define RSL_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define RSL_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_SELECTION +#define SEL_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define SEL_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_USLEEP +#define USL_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define USL_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_LAST_BYTE_SENT +#define LBS_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define LBS_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_RESTART_SELECT +#define RSS_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define RSS_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_EXTENDED +#define EXT_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define EXT_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_ABORT +#define ABRT_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define ABRT_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_TAGS +#define TAG_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define TAG_PRINTK(format, args...) +#endif +#if NDEBUG & NDEBUG_MERGING +#define MER_PRINTK(format, args...) \ + printk(KERN_DEBUG format , ## args) +#else +#define MER_PRINTK(format, args...) +#endif + +/* conditional macros for NCR5380_print_{,phase,status} */ + +#define NCR_PRINT(mask) \ + ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0) + +#define NCR_PRINT_PHASE(mask) \ + ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0) + +#define NCR_PRINT_STATUS(mask) \ + ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0) + +#define NDEBUG_ANY 0xffffffff + + + #endif /* ndef HOSTS_C */ #endif /* SUN3_NCR5380_H */ |