| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 990 | 92.96% | 6 | 46.15% |
| Russell King | 64 | 6.01% | 3 | 23.08% |
| Henrik Kretzschmar | 4 | 0.38% | 1 | 7.69% |
| Lucas De Marchi | 3 | 0.28% | 1 | 7.69% |
| Thomas Gleixner | 2 | 0.19% | 1 | 7.69% |
| Christoph Hellwig | 2 | 0.19% | 1 | 7.69% |
| Total | 1065 | 13 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/drivers/acorn/scsi/acornscsi.h * * Copyright (C) 1997 Russell King * * Acorn SCSI driver */ #ifndef ACORNSCSI_H #define ACORNSCSI_H /* SBIC registers */ #define SBIC_OWNID 0 #define OWNID_FS1 (1<<7) #define OWNID_FS2 (1<<6) #define OWNID_EHP (1<<4) #define OWNID_EAF (1<<3) #define SBIC_CTRL 1 #define CTRL_DMAMODE (1<<7) #define CTRL_DMADBAMODE (1<<6) #define CTRL_DMABURST (1<<5) #define CTRL_DMAPOLLED 0 #define CTRL_HHP (1<<4) #define CTRL_EDI (1<<3) #define CTRL_IDI (1<<2) #define CTRL_HA (1<<1) #define CTRL_HSP (1<<0) #define SBIC_TIMEOUT 2 #define SBIC_TOTSECTS 3 #define SBIC_TOTHEADS 4 #define SBIC_TOTCYLH 5 #define SBIC_TOTCYLL 6 #define SBIC_LOGADDRH 7 #define SBIC_LOGADDRM2 8 #define SBIC_LOGADDRM1 9 #define SBIC_LOGADDRL 10 #define SBIC_SECTORNUM 11 #define SBIC_HEADNUM 12 #define SBIC_CYLH 13 #define SBIC_CYLL 14 #define SBIC_TARGETLUN 15 #define TARGETLUN_TLV (1<<7) #define TARGETLUN_DOK (1<<6) #define SBIC_CMNDPHASE 16 #define SBIC_SYNCHTRANSFER 17 #define SYNCHTRANSFER_OF0 0x00 #define SYNCHTRANSFER_OF1 0x01 #define SYNCHTRANSFER_OF2 0x02 #define SYNCHTRANSFER_OF3 0x03 #define SYNCHTRANSFER_OF4 0x04 #define SYNCHTRANSFER_OF5 0x05 #define SYNCHTRANSFER_OF6 0x06 #define SYNCHTRANSFER_OF7 0x07 #define SYNCHTRANSFER_OF8 0x08 #define SYNCHTRANSFER_OF9 0x09 #define SYNCHTRANSFER_OF10 0x0A #define SYNCHTRANSFER_OF11 0x0B #define SYNCHTRANSFER_OF12 0x0C #define SYNCHTRANSFER_8DBA 0x00 #define SYNCHTRANSFER_2DBA 0x20 #define SYNCHTRANSFER_3DBA 0x30 #define SYNCHTRANSFER_4DBA 0x40 #define SYNCHTRANSFER_5DBA 0x50 #define SYNCHTRANSFER_6DBA 0x60 #define SYNCHTRANSFER_7DBA 0x70 #define SBIC_TRANSCNTH 18 #define SBIC_TRANSCNTM 19 #define SBIC_TRANSCNTL 20 #define SBIC_DESTID 21 #define DESTID_SCC (1<<7) #define DESTID_DPD (1<<6) #define SBIC_SOURCEID 22 #define SOURCEID_ER (1<<7) #define SOURCEID_ES (1<<6) #define SOURCEID_DSP (1<<5) #define SOURCEID_SIV (1<<4) #define SBIC_SSR 23 #define SBIC_CMND 24 #define CMND_RESET 0x00 #define CMND_ABORT 0x01 #define CMND_ASSERTATN 0x02 #define CMND_NEGATEACK 0x03 #define CMND_DISCONNECT 0x04 #define CMND_RESELECT 0x05 #define CMND_SELWITHATN 0x06 #define CMND_SELECT 0x07 #define CMND_SELECTATNTRANSFER 0x08 #define CMND_SELECTTRANSFER 0x09 #define CMND_RESELECTRXDATA 0x0A #define CMND_RESELECTTXDATA 0x0B #define CMND_WAITFORSELRECV 0x0C #define CMND_SENDSTATCMD 0x0D #define CMND_SENDDISCONNECT 0x0E #define CMND_SETIDI 0x0F #define CMND_RECEIVECMD 0x10 #define CMND_RECEIVEDTA 0x11 #define CMND_RECEIVEMSG 0x12 #define CMND_RECEIVEUSP 0x13 #define CMND_SENDCMD 0x14 #define CMND_SENDDATA 0x15 #define CMND_SENDMSG 0x16 #define CMND_SENDUSP 0x17 #define CMND_TRANSLATEADDR 0x18 #define CMND_XFERINFO 0x20 #define CMND_SBT (1<<7) #define SBIC_DATA 25 #define SBIC_ASR 26 #define ASR_INT (1<<7) #define ASR_LCI (1<<6) #define ASR_BSY (1<<5) #define ASR_CIP (1<<4) #define ASR_PE (1<<1) #define ASR_DBR (1<<0) /* DMAC registers */ #define DMAC_INIT 0x00 #define INIT_8BIT (1) #define DMAC_CHANNEL 0x80 #define CHANNEL_0 0x00 #define CHANNEL_1 0x01 #define CHANNEL_2 0x02 #define CHANNEL_3 0x03 #define DMAC_TXCNTLO 0x01 #define DMAC_TXCNTHI 0x81 #define DMAC_TXADRLO 0x02 #define DMAC_TXADRMD 0x82 #define DMAC_TXADRHI 0x03 #define DMAC_DEVCON0 0x04 #define DEVCON0_AKL (1<<7) #define DEVCON0_RQL (1<<6) #define DEVCON0_EXW (1<<5) #define DEVCON0_ROT (1<<4) #define DEVCON0_CMP (1<<3) #define DEVCON0_DDMA (1<<2) #define DEVCON0_AHLD (1<<1) #define DEVCON0_MTM (1<<0) #define DMAC_DEVCON1 0x84 #define DEVCON1_WEV (1<<1) #define DEVCON1_BHLD (1<<0) #define DMAC_MODECON 0x05 #define MODECON_WOED 0x01 #define MODECON_VERIFY 0x00 #define MODECON_READ 0x04 #define MODECON_WRITE 0x08 #define MODECON_AUTOINIT 0x10 #define MODECON_ADDRDIR 0x20 #define MODECON_DEMAND 0x00 #define MODECON_SINGLE 0x40 #define MODECON_BLOCK 0x80 #define MODECON_CASCADE 0xC0 #define DMAC_STATUS 0x85 #define STATUS_TC0 (1<<0) #define STATUS_RQ0 (1<<4) #define DMAC_TEMPLO 0x06 #define DMAC_TEMPHI 0x86 #define DMAC_REQREG 0x07 #define DMAC_MASKREG 0x87 #define MASKREG_M0 0x01 #define MASKREG_M1 0x02 #define MASKREG_M2 0x04 #define MASKREG_M3 0x08 /* miscellaneous internal variables */ #define MASK_ON (MASKREG_M3|MASKREG_M2|MASKREG_M1|MASKREG_M0) #define MASK_OFF (MASKREG_M3|MASKREG_M2|MASKREG_M1) /* * SCSI driver phases */ typedef enum { PHASE_IDLE, /* we're not planning on doing anything */ PHASE_CONNECTING, /* connecting to a target */ PHASE_CONNECTED, /* connected to a target */ PHASE_MSGOUT, /* message out to device */ PHASE_RECONNECTED, /* reconnected */ PHASE_COMMANDPAUSED, /* command partly sent */ PHASE_COMMAND, /* command all sent */ PHASE_DATAOUT, /* data out to device */ PHASE_DATAIN, /* data in from device */ PHASE_STATUSIN, /* status in from device */ PHASE_MSGIN, /* message in from device */ PHASE_DONE, /* finished */ PHASE_ABORTED, /* aborted */ PHASE_DISCONNECT, /* disconnecting */ } phase_t; /* * After interrupt, what to do now */ typedef enum { INTR_IDLE, /* not expecting another IRQ */ INTR_NEXT_COMMAND, /* start next command */ INTR_PROCESSING, /* interrupt routine still processing */ } intr_ret_t; /* * DMA direction */ typedef enum { DMA_OUT, /* DMA from memory to chip */ DMA_IN /* DMA from chip to memory */ } dmadir_t; /* * Synchronous transfer state */ typedef enum { /* Synchronous transfer state */ SYNC_ASYNCHRONOUS, /* don't negotiate synchronous transfers*/ SYNC_NEGOCIATE, /* start negotiation */ SYNC_SENT_REQUEST, /* sent SDTR message */ SYNC_COMPLETED, /* received SDTR reply */ } syncxfer_t; /* * Command type */ typedef enum { /* command type */ CMD_READ, /* READ_6, READ_10, READ_12 */ CMD_WRITE, /* WRITE_6, WRITE_10, WRITE_12 */ CMD_MISC, /* Others */ } cmdtype_t; /* * Data phase direction */ typedef enum { /* Data direction */ DATADIR_IN, /* Data in phase expected */ DATADIR_OUT /* Data out phase expected */ } datadir_t; #include "queue.h" #include "msgqueue.h" #define STATUS_BUFFER_SIZE 32 /* * This is used to dump the previous states of the SBIC */ struct status_entry { unsigned long when; unsigned char ssr; unsigned char ph; unsigned char irq; unsigned char unused; }; #define ADD_STATUS(_q,_ssr,_ph,_irq) \ ({ \ host->status[(_q)][host->status_ptr[(_q)]].when = jiffies; \ host->status[(_q)][host->status_ptr[(_q)]].ssr = (_ssr); \ host->status[(_q)][host->status_ptr[(_q)]].ph = (_ph); \ host->status[(_q)][host->status_ptr[(_q)]].irq = (_irq); \ host->status_ptr[(_q)] = (host->status_ptr[(_q)] + 1) & (STATUS_BUFFER_SIZE - 1); \ }) /* * AcornSCSI host specific data */ typedef struct acornscsi_hostdata { /* miscellaneous */ struct Scsi_Host *host; /* host */ struct scsi_cmnd *SCpnt; /* currently processing command */ struct scsi_cmnd *origSCpnt; /* original connecting command */ void __iomem *base; /* memc base address */ void __iomem *fast; /* fast ioc base address */ /* driver information */ struct { unsigned int irq; /* interrupt */ phase_t phase; /* current phase */ struct { unsigned char target; /* reconnected target */ unsigned char lun; /* reconnected lun */ unsigned char tag; /* reconnected tag */ } reconnected; struct scsi_pointer SCp; /* current commands data pointer */ MsgQueue_t msgs; unsigned short last_message; /* last message to be sent */ unsigned char disconnectable:1; /* this command can be disconnected */ } scsi; /* statistics information */ struct { unsigned int queues; unsigned int removes; unsigned int fins; unsigned int reads; unsigned int writes; unsigned int miscs; unsigned int disconnects; unsigned int aborts; unsigned int resets; } stats; /* queue handling */ struct { Queue_t issue; /* issue queue */ Queue_t disconnected; /* disconnected command queue */ } queues; /* per-device info */ struct { unsigned char sync_xfer; /* synchronous transfer (SBIC value) */ syncxfer_t sync_state; /* sync xfer negotiation state */ unsigned char disconnect_ok:1; /* device can disconnect */ } device[8]; unsigned long busyluns[64 / sizeof(unsigned long)];/* array of bits indicating LUNs busy */ /* DMA info */ struct { unsigned int free_addr; /* next free address */ unsigned int start_addr; /* start address of current transfer */ dmadir_t direction; /* dma direction */ unsigned int transferred; /* number of bytes transferred */ unsigned int xfer_start; /* scheduled DMA transfer start */ unsigned int xfer_length; /* scheduled DMA transfer length */ char *xfer_ptr; /* pointer to area */ unsigned char xfer_required:1; /* set if we need to transfer something */ unsigned char xfer_setup:1; /* set if DMA is setup */ unsigned char xfer_done:1; /* set if DMA reached end of BH list */ } dma; /* card info */ struct { unsigned char page_reg; /* current setting of page reg */ } card; unsigned char status_ptr[9]; struct status_entry status[9][STATUS_BUFFER_SIZE]; } AS_Host; #endif /* ACORNSCSI_H */
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