diff options
Diffstat (limited to 'kernel/drivers/scsi/wd719x.h')
| -rw-r--r-- | kernel/drivers/scsi/wd719x.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/wd719x.h b/kernel/drivers/scsi/wd719x.h new file mode 100644 index 000000000..185e30e4e --- /dev/null +++ b/kernel/drivers/scsi/wd719x.h @@ -0,0 +1,249 @@ +#ifndef _WD719X_H_ +#define _WD719X_H_ + +#define WD719X_SG 255 /* Scatter/gather size */ +#define WD719X_CMD_PER_LUN 1 /* We should be able to do linked commands, but + * this is 1 for now to be safe. */ + +struct wd719x_sglist { + __le32 ptr; + __le32 length; +} __packed; + +enum wd719x_card_type { + WD719X_TYPE_UNKNOWN = 0, + WD719X_TYPE_7193, + WD719X_TYPE_7197, + WD719X_TYPE_7296, +}; + +union wd719x_regs { + __le32 all; /* All Status at once */ + struct { + u8 OPC; /* Opcode register */ + u8 SCSI; /* SCSI Errors */ + u8 SUE; /* Spider unique Errors */ + u8 INT; /* Interrupt Status */ + } bytes; +}; + +/* Spider Command Block (SCB) */ +struct wd719x_scb { + __le32 Int_SCB; /* 00-03 Internal SCB link pointer (must be cleared) */ + u8 SCB_opcode; /* 04 SCB Command opcode */ + u8 CDB_tag; /* 05 SCSI Tag byte for CDB queues (0 if untagged) */ + u8 lun; /* 06 SCSI LUN */ + u8 devid; /* 07 SCSI Device ID */ + u8 CDB[16]; /* 08-23 SCSI CDB (16 bytes as defined by ANSI spec. */ + __le32 data_p; /* 24-27 Data transfer address (or SG list address) */ + __le32 data_length; /* 28-31 Data transfer Length (or SG list length) */ + __le32 CDB_link; /* 32-35 SCSI CDB Link Ptr */ + __le32 sense_buf; /* 36-39 Auto request sense buffer address */ + u8 sense_buf_length;/* 40 Auto request sense transfer length */ + u8 reserved; /* 41 reserved */ + u8 SCB_options; /* 42 SCB-options */ + u8 SCB_tag_msg; /* 43 Tagged messages options */ + /* Not filled in by host */ + __le32 req_ptr; /* 44-47 Ptr to Host Request returned on interrupt */ + u8 host_opcode; /* 48 Host Command Opcode (same as AMR_00) */ + u8 scsi_stat; /* 49 SCSI Status returned */ + u8 ret_error; /* 50 SPIDER Unique Error Code returned (SUE) */ + u8 int_stat; /* 51 Message u8 / Interrupt Status byte returned */ + __le32 transferred; /* 52-55 Bytes Transferred */ + u8 last_trans[3]; /* 56-58 Bytes Transferred in last session */ + u8 length; /* 59 SCSI Messages Length (1-8) */ + u8 sync_offset; /* 60 Synchronous offset */ + u8 sync_rate; /* 61 Synchronous rate */ + u8 flags[2]; /* 62-63 SCB specific flags (local to each thread) */ + /* everything below is for driver use (not used by card) */ + dma_addr_t phys; /* bus address of the SCB */ + struct scsi_cmnd *cmd; /* a copy of the pointer we were passed */ + struct list_head list; + struct wd719x_sglist sg_list[WD719X_SG] __aligned(8); /* SG list */ +} __packed; + +struct wd719x { + struct Scsi_Host *sh; /* pointer to host structure */ + struct pci_dev *pdev; + void __iomem *base; + enum wd719x_card_type type; /* type of card */ + void *fw_virt; /* firmware buffer CPU address */ + dma_addr_t fw_phys; /* firmware buffer bus address */ + size_t fw_size; /* firmware buffer size */ + struct wd719x_host_param *params; /* host parameters (EEPROM) */ + dma_addr_t params_phys; /* host parameters bus address */ + void *hash_virt; /* hash table CPU address */ + dma_addr_t hash_phys; /* hash table bus address */ + struct list_head active_scbs; + struct list_head free_scbs; +}; + +/* timeout delays in microsecs */ +#define WD719X_WAIT_FOR_CMD_READY 500 +#define WD719X_WAIT_FOR_RISC 2000 +#define WD719X_WAIT_FOR_SCSI_RESET 3000000 + +/* All commands except 0x00 generate an interrupt */ +#define WD719X_CMD_READY 0x00 /* Command register ready (or noop) */ +#define WD719X_CMD_INIT_RISC 0x01 /* Initialize RISC */ +/* 0x02 is reserved */ +#define WD719X_CMD_BUSRESET 0x03 /* Assert SCSI bus reset */ +#define WD719X_CMD_READ_FIRMVER 0x04 /* Read the Firmware Revision */ +#define WD719X_CMD_ECHO_BYTES 0x05 /* Echo command bytes (DW) */ +/* 0x06 is reserved */ +/* 0x07 is reserved */ +#define WD719X_CMD_GET_PARAM 0x08 /* Get programmable parameters */ +#define WD719X_CMD_SET_PARAM 0x09 /* Set programmable parameters */ +#define WD719X_CMD_SLEEP 0x0a /* Put SPIDER to sleep */ +#define WD719X_CMD_READ_INIT 0x0b /* Read initialization parameters */ +#define WD719X_CMD_RESTORE_INIT 0x0c /* Restore initialization parameters */ +/* 0x0d is reserved */ +/* 0x0e is reserved */ +/* 0x0f is reserved */ +#define WD719X_CMD_ABORT_TAG 0x10 /* Send Abort tag message to target */ +#define WD719X_CMD_ABORT 0x11 /* Send Abort message to target */ +#define WD719X_CMD_RESET 0x12 /* Send Reset message to target */ +#define WD719X_CMD_INIT_SCAM 0x13 /* Initiate SCAM */ +#define WD719X_CMD_GET_SYNC 0x14 /* Get synchronous rates */ +#define WD719X_CMD_SET_SYNC 0x15 /* Set synchronous rates */ +#define WD719X_CMD_GET_WIDTH 0x16 /* Get SCSI bus width */ +#define WD719X_CMD_SET_WIDTH 0x17 /* Set SCSI bus width */ +#define WD719X_CMD_GET_TAGS 0x18 /* Get tag flags */ +#define WD719X_CMD_SET_TAGS 0x19 /* Set tag flags */ +#define WD719X_CMD_GET_PARAM2 0x1a /* Get programmable params (format 2) */ +#define WD719X_CMD_SET_PARAM2 0x1b /* Set programmable params (format 2) */ +/* Commands with request pointers (mailbox) */ +#define WD719X_CMD_PROCESS_SCB 0x80 /* Process SCSI Control Block (SCB) */ +/* No interrupt generated on acceptance of SCB pointer */ + +/* interrupt status defines */ +#define WD719X_INT_NONE 0x00 /* No interrupt pending */ +#define WD719X_INT_NOERRORS 0x01 /* Command completed with no errors */ +#define WD719X_INT_LINKNOERRORS 0x02 /* link cmd completed with no errors */ +#define WD719X_INT_LINKNOSTATUS 0x03 /* link cmd completed with no flag set */ +#define WD719X_INT_ERRORSLOGGED 0x04 /* cmd completed with errors logged */ +#define WD719X_INT_SPIDERFAILED 0x05 /* cmd failed without valid SCSI status */ +#define WD719X_INT_BADINT 0x80 /* unsolicited interrupt */ +#define WD719X_INT_PIOREADY 0xf0 /* data ready for PIO output */ + +/* Spider Unique Error Codes (SUE) */ +#define WD719X_SUE_NOERRORS 0x00 /* No errors detected by SPIDER */ +#define WD719X_SUE_REJECTED 0x01 /* Command Rejected (bad opcode/param) */ +#define WD719X_SUE_SCBQFULL 0x02 /* SCB queue full */ +/* 0x03 is reserved */ +#define WD719X_SUE_TERM 0x04 /* Host terminated SCB via primative cmd */ +#define WD719X_SUE_CHAN1PAR 0x05 /* PCI Channel 1 parity error occurred */ +#define WD719X_SUE_CHAN1ABORT 0x06 /* PCI Channel 1 system abort occurred */ +#define WD719X_SUE_CHAN23PAR 0x07 /* PCI Channel 2/3 parity error occurred */ +#define WD719X_SUE_CHAN23ABORT 0x08 /* PCI Channel 2/3 system abort occurred */ +#define WD719X_SUE_TIMEOUT 0x10 /* Selection/reselection timeout */ +#define WD719X_SUE_RESET 0x11 /* SCSI bus reset occurred */ +#define WD719X_SUE_BUSERROR 0x12 /* SCSI bus error */ +#define WD719X_SUE_WRONGWAY 0x13 /* Wrong data transfer dir set by target */ +#define WD719X_SUE_BADPHASE 0x14 /* SCSI phase illegal or unexpected */ +#define WD719X_SUE_TOOLONG 0x15 /* target requested too much data */ +#define WD719X_SUE_BUSFREE 0x16 /* Unexpected SCSI bus free */ +#define WD719X_SUE_ARSDONE 0x17 /* Auto request sense executed */ +#define WD719X_SUE_IGNORED 0x18 /* SCSI message was ignored by target */ +#define WD719X_SUE_WRONGTAGS 0x19 /* Tagged SCB & tags off (or vice versa) */ +#define WD719X_SUE_BADTAGS 0x1a /* Wrong tag message type for target */ +#define WD719X_SUE_NOSCAMID 0x1b /* No SCAM soft ID available */ + +/* code sizes */ +#define WD719X_HASH_TABLE_SIZE 4096 + +/* Advanced Mode Registers */ +/* Regs 0x00..0x1f are for Advanced Mode of the card (RISC is running). */ +#define WD719X_AMR_COMMAND 0x00 +#define WD719X_AMR_CMD_PARAM 0x01 +#define WD719X_AMR_CMD_PARAM_2 0x02 +#define WD719X_AMR_CMD_PARAM_3 0x03 +#define WD719X_AMR_SCB_IN 0x04 + +#define WD719X_AMR_BIOS_SHARE_INT 0x0f + +#define WD719X_AMR_SCB_OUT 0x18 +#define WD719X_AMR_OP_CODE 0x1c +#define WD719X_AMR_SCSI_STATUS 0x1d +#define WD719X_AMR_SCB_ERROR 0x1e +#define WD719X_AMR_INT_STATUS 0x1f + +#define WD719X_DISABLE_INT 0x80 + +/* SCB flags */ +#define WD719X_SCB_FLAGS_CHECK_DIRECTION 0x01 +#define WD719X_SCB_FLAGS_PCI_TO_SCSI 0x02 +#define WD719X_SCB_FLAGS_AUTO_REQUEST_SENSE 0x10 +#define WD719X_SCB_FLAGS_DO_SCATTER_GATHER 0x20 +#define WD719X_SCB_FLAGS_NO_DISCONNECT 0x40 + +/* PCI Registers used for reset, initial code download */ +/* Regs 0x20..0x3f are for Normal (DOS) mode (RISC is asleep). */ +#define WD719X_PCI_GPIO_CONTROL 0x3C +#define WD719X_PCI_GPIO_DATA 0x3D +#define WD719X_PCI_PORT_RESET 0x3E +#define WD719X_PCI_MODE_SELECT 0x3F + +#define WD719X_PCI_EXTERNAL_ADDR 0x60 +#define WD719X_PCI_INTERNAL_ADDR 0x64 +#define WD719X_PCI_DMA_TRANSFER_SIZE 0x66 +#define WD719X_PCI_CHANNEL2_3CMD 0x68 +#define WD719X_PCI_CHANNEL2_3STATUS 0x69 + +#define WD719X_GPIO_ID_BITS 0x0a +#define WD719X_PRAM_BASE_ADDR 0x00 + +/* codes written to or read from the card */ +#define WD719X_PCI_RESET 0x01 +#define WD719X_ENABLE_ADVANCE_MODE 0x01 + +#define WD719X_START_CHANNEL2_3DMA 0x17 +#define WD719X_START_CHANNEL2_3DONE 0x01 +#define WD719X_START_CHANNEL2_3ABORT 0x20 + +/* 33C296 GPIO bits for EEPROM pins */ +#define WD719X_EE_DI (1 << 1) +#define WD719X_EE_CS (1 << 2) +#define WD719X_EE_CLK (1 << 3) +#define WD719X_EE_DO (1 << 4) + +/* EEPROM contents */ +struct wd719x_eeprom_header { + u8 sig1; + u8 sig2; + u8 version; + u8 checksum; + u8 cfg_offset; + u8 cfg_size; + u8 setup_offset; + u8 setup_size; +} __packed; + +#define WD719X_EE_SIG1 0 +#define WD719X_EE_SIG2 1 +#define WD719X_EE_VERSION 2 +#define WD719X_EE_CHECKSUM 3 +#define WD719X_EE_CFG_OFFSET 4 +#define WD719X_EE_CFG_SIZE 5 +#define WD719X_EE_SETUP_OFFSET 6 +#define WD719X_EE_SETUP_SIZE 7 + +#define WD719X_EE_SCSI_ID_MASK 0xf + +/* SPIDER Host Parameters Block (=EEPROM configuration block) */ +struct wd719x_host_param { + u8 ch_1_th; /* FIFO threshold */ + u8 scsi_conf; /* SCSI configuration */ + u8 own_scsi_id; /* controller SCSI ID */ + u8 sel_timeout; /* selection timeout*/ + u8 sleep_timer; /* seep timer */ + __le16 cdb_size;/* CDB size groups */ + __le16 tag_en; /* Tag msg enables (ID 0-15) */ + u8 scsi_pad; /* SCSI pad control */ + __le32 wide; /* WIDE msg options (ID 0-15) */ + __le32 sync; /* SYNC msg options (ID 0-15) */ + u8 soft_mask; /* soft error mask */ + u8 unsol_mask; /* unsolicited error mask */ +} __packed; + +#endif /* _WD719X_H_ */ |