| /*=======================================================/ |
| Header file for nsp_cs.c |
| By: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp> |
| |
| Ver.1.0 : Cut unused lines. |
| Ver 0.1 : Initial version. |
| |
| This software may be used and distributed according to the terms of |
| the GNU General Public License. |
| |
| =========================================================*/ |
| |
| #ifndef __nsp_cs__ |
| #define __nsp_cs__ |
| |
| /* for debugging */ |
| //#define NSP_DEBUG 9 |
| |
| /* |
| #define static |
| #define inline |
| */ |
| |
| /************************************ |
| * Some useful macros... |
| */ |
| |
| /* SCSI initiator must be ID 7 */ |
| #define NSP_INITIATOR_ID 7 |
| |
| #define NSP_SELTIMEOUT 200 |
| |
| /*************************************************************************** |
| * register definitions |
| ***************************************************************************/ |
| /*======================================================================== |
| * base register |
| ========================================================================*/ |
| #define IRQCONTROL 0x00 /* R */ |
| # define IRQCONTROL_RESELECT_CLEAR BIT(0) |
| # define IRQCONTROL_PHASE_CHANGE_CLEAR BIT(1) |
| # define IRQCONTROL_TIMER_CLEAR BIT(2) |
| # define IRQCONTROL_FIFO_CLEAR BIT(3) |
| # define IRQCONTROL_ALLMASK 0xff |
| # define IRQCONTROL_ALLCLEAR (IRQCONTROL_RESELECT_CLEAR | \ |
| IRQCONTROL_PHASE_CHANGE_CLEAR | \ |
| IRQCONTROL_TIMER_CLEAR | \ |
| IRQCONTROL_FIFO_CLEAR ) |
| # define IRQCONTROL_IRQDISABLE 0xf0 |
| |
| #define IRQSTATUS 0x00 /* W */ |
| # define IRQSTATUS_SCSI BIT(0) |
| # define IRQSTATUS_TIMER BIT(2) |
| # define IRQSTATUS_FIFO BIT(3) |
| # define IRQSTATUS_MASK 0x0f |
| |
| #define IFSELECT 0x01 /* W */ |
| # define IF_IFSEL BIT(0) |
| # define IF_REGSEL BIT(2) |
| |
| #define FIFOSTATUS 0x01 /* R */ |
| # define FIFOSTATUS_CHIP_REVISION_MASK 0x0f |
| # define FIFOSTATUS_CHIP_ID_MASK 0x70 |
| # define FIFOSTATUS_FULL_EMPTY BIT(7) |
| |
| #define INDEXREG 0x02 /* R/W */ |
| #define DATAREG 0x03 /* R/W */ |
| #define FIFODATA 0x04 /* R/W */ |
| #define FIFODATA1 0x05 /* R/W */ |
| #define FIFODATA2 0x06 /* R/W */ |
| #define FIFODATA3 0x07 /* R/W */ |
| |
| /*==================================================================== |
| * indexed register |
| ====================================================================*/ |
| #define EXTBUSCTRL 0x10 /* R/W,deleted */ |
| |
| #define CLOCKDIV 0x11 /* R/W */ |
| # define CLOCK_40M 0x02 |
| # define CLOCK_20M 0x01 |
| # define FAST_20 BIT(2) |
| |
| #define TERMPWRCTRL 0x13 /* R/W */ |
| # define POWER_ON BIT(0) |
| |
| #define SCSIIRQMODE 0x15 /* R/W */ |
| # define SCSI_PHASE_CHANGE_EI BIT(0) |
| # define RESELECT_EI BIT(4) |
| # define FIFO_IRQ_EI BIT(5) |
| # define SCSI_RESET_IRQ_EI BIT(6) |
| |
| #define IRQPHASESENCE 0x16 /* R */ |
| # define LATCHED_MSG BIT(0) |
| # define LATCHED_IO BIT(1) |
| # define LATCHED_CD BIT(2) |
| # define LATCHED_BUS_FREE BIT(3) |
| # define PHASE_CHANGE_IRQ BIT(4) |
| # define RESELECT_IRQ BIT(5) |
| # define FIFO_IRQ BIT(6) |
| # define SCSI_RESET_IRQ BIT(7) |
| |
| #define TIMERCOUNT 0x17 /* R/W */ |
| |
| #define SCSIBUSCTRL 0x18 /* R/W */ |
| # define SCSI_SEL BIT(0) |
| # define SCSI_RST BIT(1) |
| # define SCSI_DATAOUT_ENB BIT(2) |
| # define SCSI_ATN BIT(3) |
| # define SCSI_ACK BIT(4) |
| # define SCSI_BSY BIT(5) |
| # define AUTODIRECTION BIT(6) |
| # define ACKENB BIT(7) |
| |
| #define SCSIBUSMON 0x19 /* R */ |
| |
| #define SETARBIT 0x1A /* W */ |
| # define ARBIT_GO BIT(0) |
| # define ARBIT_FLAG_CLEAR BIT(1) |
| |
| #define ARBITSTATUS 0x1A /* R */ |
| /*# define ARBIT_GO BIT(0)*/ |
| # define ARBIT_WIN BIT(1) |
| # define ARBIT_FAIL BIT(2) |
| # define RESELECT_FLAG BIT(3) |
| |
| #define PARITYCTRL 0x1B /* W */ |
| #define PARITYSTATUS 0x1B /* R */ |
| |
| #define COMMANDCTRL 0x1C /* W */ |
| # define CLEAR_COMMAND_POINTER BIT(0) |
| # define AUTO_COMMAND_GO BIT(1) |
| |
| #define RESELECTID 0x1C /* R */ |
| #define COMMANDDATA 0x1D /* R/W */ |
| |
| #define POINTERCLR 0x1E /* W */ |
| # define POINTER_CLEAR BIT(0) |
| # define ACK_COUNTER_CLEAR BIT(1) |
| # define REQ_COUNTER_CLEAR BIT(2) |
| # define HOST_COUNTER_CLEAR BIT(3) |
| # define READ_SOURCE (BIT(4) | BIT(5)) |
| # define ACK_COUNTER (0) |
| # define REQ_COUNTER (BIT(4)) |
| # define HOST_COUNTER (BIT(5)) |
| |
| #define TRANSFERCOUNT 0x1E /* R */ |
| |
| #define TRANSFERMODE 0x20 /* R/W */ |
| # define MODE_MEM8 BIT(0) |
| # define MODE_MEM32 BIT(1) |
| # define MODE_ADR24 BIT(2) |
| # define MODE_ADR32 BIT(3) |
| # define MODE_IO8 BIT(4) |
| # define MODE_IO32 BIT(5) |
| # define TRANSFER_GO BIT(6) |
| # define BRAIND BIT(7) |
| |
| #define SYNCREG 0x21 /* R/W */ |
| # define SYNCREG_OFFSET_MASK 0x0f |
| # define SYNCREG_PERIOD_MASK 0xf0 |
| # define SYNCREG_PERIOD_SHIFT 4 |
| |
| #define SCSIDATALATCH 0x22 /* W */ |
| #define SCSIDATAIN 0x22 /* R */ |
| #define SCSIDATAWITHACK 0x23 /* R/W */ |
| #define SCAMCONTROL 0x24 /* W */ |
| #define SCAMSTATUS 0x24 /* R */ |
| #define SCAMDATA 0x25 /* R/W */ |
| |
| #define OTHERCONTROL 0x26 /* R/W */ |
| # define TPL_ROM_WRITE_EN BIT(0) |
| # define TPWR_OUT BIT(1) |
| # define TPWR_SENSE BIT(2) |
| # define RA8_CONTROL BIT(3) |
| |
| #define ACKWIDTH 0x27 /* R/W */ |
| #define CLRTESTPNT 0x28 /* W */ |
| #define ACKCNTLD 0x29 /* W */ |
| #define REQCNTLD 0x2A /* W */ |
| #define HSTCNTLD 0x2B /* W */ |
| #define CHECKSUM 0x2C /* R/W */ |
| |
| /************************************************************************ |
| * Input status bit definitions. |
| ************************************************************************/ |
| #define S_MESSAGE BIT(0) /* Message line from SCSI bus */ |
| #define S_IO BIT(1) /* Input/Output line from SCSI bus */ |
| #define S_CD BIT(2) /* Command/Data line from SCSI bus */ |
| #define S_BUSY BIT(3) /* Busy line from SCSI bus */ |
| #define S_ACK BIT(4) /* Acknowledge line from SCSI bus */ |
| #define S_REQUEST BIT(5) /* Request line from SCSI bus */ |
| #define S_SELECT BIT(6) /* */ |
| #define S_ATN BIT(7) /* */ |
| |
| /*********************************************************************** |
| * Useful Bus Monitor status combinations. |
| ***********************************************************************/ |
| #define BUSMON_SEL S_SELECT |
| #define BUSMON_BSY S_BUSY |
| #define BUSMON_REQ S_REQUEST |
| #define BUSMON_IO S_IO |
| #define BUSMON_ACK S_ACK |
| #define BUSMON_BUS_FREE 0 |
| #define BUSMON_COMMAND ( S_BUSY | S_CD | S_REQUEST ) |
| #define BUSMON_MESSAGE_IN ( S_BUSY | S_CD | S_IO | S_MESSAGE | S_REQUEST ) |
| #define BUSMON_MESSAGE_OUT ( S_BUSY | S_CD | S_MESSAGE | S_REQUEST ) |
| #define BUSMON_DATA_IN ( S_BUSY | S_IO | S_REQUEST ) |
| #define BUSMON_DATA_OUT ( S_BUSY | S_REQUEST ) |
| #define BUSMON_STATUS ( S_BUSY | S_CD | S_IO | S_REQUEST ) |
| #define BUSMON_SELECT ( S_IO | S_SELECT ) |
| #define BUSMON_RESELECT ( S_IO | S_SELECT ) |
| #define BUSMON_PHASE_MASK ( S_CD | S_IO | S_MESSAGE | S_SELECT ) |
| |
| #define BUSPHASE_SELECT ( BUSMON_SELECT & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_COMMAND ( BUSMON_COMMAND & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_MESSAGE_IN ( BUSMON_MESSAGE_IN & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_MESSAGE_OUT ( BUSMON_MESSAGE_OUT & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_DATA_IN ( BUSMON_DATA_IN & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_DATA_OUT ( BUSMON_DATA_OUT & BUSMON_PHASE_MASK ) |
| #define BUSPHASE_STATUS ( BUSMON_STATUS & BUSMON_PHASE_MASK ) |
| |
| /*====================================================================*/ |
| |
| typedef struct scsi_info_t { |
| struct pcmcia_device *p_dev; |
| struct Scsi_Host *host; |
| int stop; |
| } scsi_info_t; |
| |
| |
| /* synchronous transfer negotiation data */ |
| typedef struct _sync_data { |
| unsigned int SyncNegotiation; |
| #define SYNC_NOT_YET 0 |
| #define SYNC_OK 1 |
| #define SYNC_NG 2 |
| |
| unsigned int SyncPeriod; |
| unsigned int SyncOffset; |
| unsigned char SyncRegister; |
| unsigned char AckWidth; |
| } sync_data; |
| |
| typedef struct _nsp_hw_data { |
| unsigned int BaseAddress; |
| unsigned int NumAddress; |
| unsigned int IrqNumber; |
| |
| unsigned long MmioAddress; |
| #define NSP_MMIO_OFFSET 0x0800 |
| unsigned long MmioLength; |
| |
| unsigned char ScsiClockDiv; |
| |
| unsigned char TransferMode; |
| |
| int TimerCount; |
| int SelectionTimeOut; |
| struct scsi_cmnd *CurrentSC; |
| //int CurrnetTarget; |
| |
| int FifoCount; |
| |
| #define MSGBUF_SIZE 20 |
| unsigned char MsgBuffer[MSGBUF_SIZE]; |
| int MsgLen; |
| |
| #define N_TARGET 8 |
| sync_data Sync[N_TARGET]; |
| |
| char nspinfo[110]; /* description */ |
| spinlock_t Lock; |
| |
| scsi_info_t *ScsiInfo; /* attach <-> detect glue */ |
| |
| |
| #ifdef NSP_DEBUG |
| int CmdId; /* Accepted command serial number. |
| Used for debugging. */ |
| #endif |
| } nsp_hw_data; |
| |
| /**************************************************************************** |
| * |
| */ |
| |
| /* Card service functions */ |
| static void nsp_cs_detach (struct pcmcia_device *p_dev); |
| static void nsp_cs_release(struct pcmcia_device *link); |
| static int nsp_cs_config (struct pcmcia_device *link); |
| |
| /* Linux SCSI subsystem specific functions */ |
| static struct Scsi_Host *nsp_detect (struct scsi_host_template *sht); |
| static const char *nsp_info (struct Scsi_Host *shpnt); |
| static int nsp_show_info (struct seq_file *m, |
| struct Scsi_Host *host); |
| static int nsp_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *SCpnt); |
| |
| /* Error handler */ |
| /*static int nsp_eh_abort (struct scsi_cmnd *SCpnt);*/ |
| /*static int nsp_eh_device_reset(struct scsi_cmnd *SCpnt);*/ |
| static int nsp_eh_bus_reset (struct scsi_cmnd *SCpnt); |
| static int nsp_eh_host_reset (struct scsi_cmnd *SCpnt); |
| static int nsp_bus_reset (nsp_hw_data *data); |
| |
| /* */ |
| static void nsphw_init (nsp_hw_data *data); |
| static bool nsphw_start_selection(struct scsi_cmnd *SCpnt); |
| static void nsp_start_timer (struct scsi_cmnd *SCpnt, int time); |
| static int nsp_fifo_count (struct scsi_cmnd *SCpnt); |
| static void nsp_pio_read (struct scsi_cmnd *SCpnt); |
| static void nsp_pio_write (struct scsi_cmnd *SCpnt); |
| static int nsp_nexus (struct scsi_cmnd *SCpnt); |
| static void nsp_scsi_done (struct scsi_cmnd *SCpnt); |
| static int nsp_analyze_sdtr (struct scsi_cmnd *SCpnt); |
| static int nsp_negate_signal (struct scsi_cmnd *SCpnt, |
| unsigned char mask, char *str); |
| static int nsp_expect_signal (struct scsi_cmnd *SCpnt, |
| unsigned char current_phase, |
| unsigned char mask); |
| static int nsp_xfer (struct scsi_cmnd *SCpnt, int phase); |
| static int nsp_dataphase_bypass (struct scsi_cmnd *SCpnt); |
| static void nsp_reselected (struct scsi_cmnd *SCpnt); |
| static struct Scsi_Host *nsp_detect(struct scsi_host_template *sht); |
| |
| /* Interrupt handler */ |
| //static irqreturn_t nspintr(int irq, void *dev_id); |
| |
| /* Debug */ |
| #ifdef NSP_DEBUG |
| static void show_command (struct scsi_cmnd *SCpnt); |
| static void show_phase (struct scsi_cmnd *SCpnt); |
| static void show_busphase(unsigned char stat); |
| static void show_message (nsp_hw_data *data); |
| #else |
| # define show_command(ptr) /* */ |
| # define show_phase(SCpnt) /* */ |
| # define show_busphase(stat) /* */ |
| # define show_message(data) /* */ |
| #endif |
| |
| /* |
| * SCSI phase |
| */ |
| enum _scsi_phase { |
| PH_UNDETERMINED , |
| PH_ARBSTART , |
| PH_SELSTART , |
| PH_SELECTED , |
| PH_COMMAND , |
| PH_DATA , |
| PH_STATUS , |
| PH_MSG_IN , |
| PH_MSG_OUT , |
| PH_DISCONNECT , |
| PH_RESELECT , |
| PH_ABORT , |
| PH_RESET |
| }; |
| |
| enum _data_in_out { |
| IO_UNKNOWN, |
| IO_IN, |
| IO_OUT |
| }; |
| |
| enum _burst_mode { |
| BURST_IO8 = 0, |
| BURST_IO32 = 1, |
| BURST_MEM32 = 2, |
| }; |
| |
| /* scatter-gather table */ |
| #define BUFFER_ADDR(SCpnt) ((char *)(sg_virt(nsp_priv(SCpnt)->buffer))) |
| |
| #endif /*__nsp_cs__*/ |
| /* end */ |
