| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 1059 | 92.65% | 10 | 47.62% |
| Christoph Hellwig | 24 | 2.10% | 2 | 9.52% |
| peter fuerst | 23 | 2.01% | 1 | 4.76% |
| Bart Van Assche | 14 | 1.22% | 1 | 4.76% |
| Al Viro | 9 | 0.79% | 1 | 4.76% |
| Linus Torvalds | 4 | 0.35% | 1 | 4.76% |
| Jeff Garzik | 3 | 0.26% | 1 | 4.76% |
| Geert Uytterhoeven | 3 | 0.26% | 1 | 4.76% |
| Thomas Gleixner | 2 | 0.17% | 1 | 4.76% |
| Jean Delvare | 1 | 0.09% | 1 | 4.76% |
| Osamu Tomita | 1 | 0.09% | 1 | 4.76% |
| Total | 1143 | 21 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * wd33c93.h - Linux device driver definitions for the * Commodore Amiga A2091/590 SCSI controller card * * IMPORTANT: This file is for version 1.25 - 09/Jul/1997 * * Copyright (c) 1996 John Shifflett, GeoLog Consulting * john@geolog.com * jshiffle@netcom.com */ #ifndef WD33C93_H #define WD33C93_H #define PROC_INTERFACE /* add code for /proc/scsi/wd33c93/xxx interface */ #ifdef PROC_INTERFACE #define PROC_STATISTICS /* add code for keeping various real time stats */ #endif #define SYNC_DEBUG /* extra info on sync negotiation printed */ #define DEBUGGING_ON /* enable command-line debugging bitmask */ #define DEBUG_DEFAULTS 0 /* default debugging bitmask */ #ifdef DEBUGGING_ON #define DB(f,a) if (hostdata->args & (f)) a; #else #define DB(f,a) #endif #define uchar unsigned char /* wd register names */ #define WD_OWN_ID 0x00 #define WD_CONTROL 0x01 #define WD_TIMEOUT_PERIOD 0x02 #define WD_CDB_1 0x03 #define WD_CDB_2 0x04 #define WD_CDB_3 0x05 #define WD_CDB_4 0x06 #define WD_CDB_5 0x07 #define WD_CDB_6 0x08 #define WD_CDB_7 0x09 #define WD_CDB_8 0x0a #define WD_CDB_9 0x0b #define WD_CDB_10 0x0c #define WD_CDB_11 0x0d #define WD_CDB_12 0x0e #define WD_TARGET_LUN 0x0f #define WD_COMMAND_PHASE 0x10 #define WD_SYNCHRONOUS_TRANSFER 0x11 #define WD_TRANSFER_COUNT_MSB 0x12 #define WD_TRANSFER_COUNT 0x13 #define WD_TRANSFER_COUNT_LSB 0x14 #define WD_DESTINATION_ID 0x15 #define WD_SOURCE_ID 0x16 #define WD_SCSI_STATUS 0x17 #define WD_COMMAND 0x18 #define WD_DATA 0x19 #define WD_QUEUE_TAG 0x1a #define WD_AUXILIARY_STATUS 0x1f /* WD commands */ #define WD_CMD_RESET 0x00 #define WD_CMD_ABORT 0x01 #define WD_CMD_ASSERT_ATN 0x02 #define WD_CMD_NEGATE_ACK 0x03 #define WD_CMD_DISCONNECT 0x04 #define WD_CMD_RESELECT 0x05 #define WD_CMD_SEL_ATN 0x06 #define WD_CMD_SEL 0x07 #define WD_CMD_SEL_ATN_XFER 0x08 #define WD_CMD_SEL_XFER 0x09 #define WD_CMD_RESEL_RECEIVE 0x0a #define WD_CMD_RESEL_SEND 0x0b #define WD_CMD_WAIT_SEL_RECEIVE 0x0c #define WD_CMD_TRANS_ADDR 0x18 #define WD_CMD_TRANS_INFO 0x20 #define WD_CMD_TRANSFER_PAD 0x21 #define WD_CMD_SBT_MODE 0x80 /* ASR register */ #define ASR_INT (0x80) #define ASR_LCI (0x40) #define ASR_BSY (0x20) #define ASR_CIP (0x10) #define ASR_PE (0x02) #define ASR_DBR (0x01) /* SCSI Bus Phases */ #define PHS_DATA_OUT 0x00 #define PHS_DATA_IN 0x01 #define PHS_COMMAND 0x02 #define PHS_STATUS 0x03 #define PHS_MESS_OUT 0x06 #define PHS_MESS_IN 0x07 /* Command Status Register definitions */ /* reset state interrupts */ #define CSR_RESET 0x00 #define CSR_RESET_AF 0x01 /* successful completion interrupts */ #define CSR_RESELECT 0x10 #define CSR_SELECT 0x11 #define CSR_SEL_XFER_DONE 0x16 #define CSR_XFER_DONE 0x18 /* paused or aborted interrupts */ #define CSR_MSGIN 0x20 #define CSR_SDP 0x21 #define CSR_SEL_ABORT 0x22 #define CSR_RESEL_ABORT 0x25 #define CSR_RESEL_ABORT_AM 0x27 #define CSR_ABORT 0x28 /* terminated interrupts */ #define CSR_INVALID 0x40 #define CSR_UNEXP_DISC 0x41 #define CSR_TIMEOUT 0x42 #define CSR_PARITY 0x43 #define CSR_PARITY_ATN 0x44 #define CSR_BAD_STATUS 0x45 #define CSR_UNEXP 0x48 /* service required interrupts */ #define CSR_RESEL 0x80 #define CSR_RESEL_AM 0x81 #define CSR_DISC 0x85 #define CSR_SRV_REQ 0x88 /* Own ID/CDB Size register */ #define OWNID_EAF 0x08 #define OWNID_EHP 0x10 #define OWNID_RAF 0x20 #define OWNID_FS_8 0x00 #define OWNID_FS_12 0x40 #define OWNID_FS_16 0x80 /* define these so we don't have to change a2091.c, etc. */ #define WD33C93_FS_8_10 OWNID_FS_8 #define WD33C93_FS_12_15 OWNID_FS_12 #define WD33C93_FS_16_20 OWNID_FS_16 /* pass input-clock explicitly. accepted mhz values are 8-10,12-20 */ #define WD33C93_FS_MHZ(mhz) (mhz) /* Control register */ #define CTRL_HSP 0x01 #define CTRL_HA 0x02 #define CTRL_IDI 0x04 #define CTRL_EDI 0x08 #define CTRL_HHP 0x10 #define CTRL_POLLED 0x00 #define CTRL_BURST 0x20 #define CTRL_BUS 0x40 #define CTRL_DMA 0x80 /* Timeout Period register */ #define TIMEOUT_PERIOD_VALUE 20 /* 20 = 200 ms */ /* Synchronous Transfer Register */ #define STR_FSS 0x80 /* Destination ID register */ #define DSTID_DPD 0x40 #define DATA_OUT_DIR 0 #define DATA_IN_DIR 1 #define DSTID_SCC 0x80 /* Source ID register */ #define SRCID_MASK 0x07 #define SRCID_SIV 0x08 #define SRCID_DSP 0x20 #define SRCID_ES 0x40 #define SRCID_ER 0x80 /* This is what the 3393 chip looks like to us */ typedef struct { volatile unsigned char *SASR; volatile unsigned char *SCMD; } wd33c93_regs; typedef int (*dma_setup_t) (struct scsi_cmnd *SCpnt, int dir_in); typedef void (*dma_stop_t) (struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, int status); #define ILLEGAL_STATUS_BYTE 0xff #define DEFAULT_SX_PER 376 /* (ns) fairly safe */ #define DEFAULT_SX_OFF 0 /* aka async */ #define OPTIMUM_SX_PER 252 /* (ns) best we can do (mult-of-4) */ #define OPTIMUM_SX_OFF 12 /* size of wd3393 fifo */ struct sx_period { unsigned int period_ns; uchar reg_value; }; /* FEF: defines for hostdata->dma_buffer_pool */ #define BUF_CHIP_ALLOCED 0 #define BUF_SCSI_ALLOCED 1 struct WD33C93_hostdata { struct Scsi_Host *next; wd33c93_regs regs; spinlock_t lock; uchar clock_freq; uchar chip; /* what kind of wd33c93? */ uchar microcode; /* microcode rev */ uchar dma_buffer_pool; /* FEF: buffer from chip_ram? */ int dma_dir; /* data transfer dir. */ dma_setup_t dma_setup; dma_stop_t dma_stop; unsigned int dma_xfer_mask; uchar *dma_bounce_buffer; unsigned int dma_bounce_len; volatile uchar busy[8]; /* index = target, bit = lun */ volatile struct scsi_cmnd *input_Q; /* commands waiting to be started */ volatile struct scsi_cmnd *selecting; /* trying to select this command */ volatile struct scsi_cmnd *connected; /* currently connected command */ volatile struct scsi_cmnd *disconnected_Q;/* commands waiting for reconnect */ uchar state; /* what we are currently doing */ uchar dma; /* current state of DMA (on/off) */ uchar level2; /* extent to which Level-2 commands are used */ uchar disconnect; /* disconnect/reselect policy */ unsigned int args; /* set from command-line argument */ uchar incoming_msg[8]; /* filled during message_in phase */ int incoming_ptr; /* mainly used with EXTENDED messages */ uchar outgoing_msg[8]; /* send this during next message_out */ int outgoing_len; /* length of outgoing message */ unsigned int default_sx_per; /* default transfer period for SCSI bus */ uchar sync_xfer[8]; /* sync_xfer reg settings per target */ uchar sync_stat[8]; /* status of sync negotiation per target */ uchar no_sync; /* bitmask: don't do sync on these targets */ uchar no_dma; /* set this flag to disable DMA */ uchar dma_mode; /* DMA Burst Mode or Single Byte DMA */ uchar fast; /* set this flag to enable Fast SCSI */ struct sx_period sx_table[9]; /* transfer periods for actual DTC-setting */ #ifdef PROC_INTERFACE uchar proc; /* bitmask: what's in proc output */ #ifdef PROC_STATISTICS unsigned long cmd_cnt[8]; /* # of commands issued per target */ unsigned long int_cnt; /* # of interrupts serviced */ unsigned long pio_cnt; /* # of pio data transfers */ unsigned long dma_cnt; /* # of DMA data transfers */ unsigned long disc_allowed_cnt[8]; /* # of disconnects allowed per target */ unsigned long disc_done_cnt[8]; /* # of disconnects done per target*/ #endif #endif }; static inline struct scsi_pointer *WD33C93_scsi_pointer(struct scsi_cmnd *cmd) { return scsi_cmd_priv(cmd); } /* defines for hostdata->chip */ #define C_WD33C93 0 #define C_WD33C93A 1 #define C_WD33C93B 2 #define C_UNKNOWN_CHIP 100 /* defines for hostdata->state */ #define S_UNCONNECTED 0 #define S_SELECTING 1 #define S_RUNNING_LEVEL2 2 #define S_CONNECTED 3 #define S_PRE_TMP_DISC 4 #define S_PRE_CMP_DISC 5 /* defines for hostdata->dma */ #define D_DMA_OFF 0 #define D_DMA_RUNNING 1 /* defines for hostdata->level2 */ /* NOTE: only the first 3 are implemented so far */ #define L2_NONE 1 /* no combination commands - we get lots of ints */ #define L2_SELECT 2 /* start with SEL_ATN_XFER, but never resume it */ #define L2_BASIC 3 /* resume after STATUS ints & RDP messages */ #define L2_DATA 4 /* resume after DATA_IN/OUT ints */ #define L2_MOST 5 /* resume after anything except a RESELECT int */ #define L2_RESELECT 6 /* resume after everything, including RESELECT ints */ #define L2_ALL 7 /* always resume */ /* defines for hostdata->disconnect */ #define DIS_NEVER 0 #define DIS_ADAPTIVE 1 #define DIS_ALWAYS 2 /* defines for hostdata->args */ #define DB_TEST1 1<<0 #define DB_TEST2 1<<1 #define DB_QUEUE_COMMAND 1<<2 #define DB_EXECUTE 1<<3 #define DB_INTR 1<<4 #define DB_TRANSFER 1<<5 #define DB_MASK 0x3f /* defines for hostdata->sync_stat[] */ #define SS_UNSET 0 #define SS_FIRST 1 #define SS_WAITING 2 #define SS_SET 3 /* defines for hostdata->proc */ #define PR_VERSION 1<<0 #define PR_INFO 1<<1 #define PR_STATISTICS 1<<2 #define PR_CONNECTED 1<<3 #define PR_INPUTQ 1<<4 #define PR_DISCQ 1<<5 #define PR_TEST 1<<6 #define PR_STOP 1<<7 void wd33c93_init (struct Scsi_Host *instance, const wd33c93_regs regs, dma_setup_t setup, dma_stop_t stop, int clock_freq); int wd33c93_abort (struct scsi_cmnd *cmd); int wd33c93_queuecommand (struct Scsi_Host *h, struct scsi_cmnd *cmd); void wd33c93_intr (struct Scsi_Host *instance); int wd33c93_show_info(struct seq_file *, struct Scsi_Host *); int wd33c93_write_info(struct Scsi_Host *, char *, int); int wd33c93_host_reset (struct scsi_cmnd *); #endif /* WD33C93_H */
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