Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 472 insertions, 0 deletions

diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h
new file mode 100644
index 00000000000..c201b52e063
--- /dev/null
+++ b/drivers/scsi/pcmcia/nsp_cs.h
@@ -0,0 +1,472 @@
+/*=======================================================/
+  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.
+
+=========================================================*/
+
+/* $Id: nsp_cs.h,v 1.19 2003/08/18 11:09:19 elca Exp $ */
+
+#ifndef  __nsp_cs__
+#define  __nsp_cs__
+
+/* for debugging */
+//#define NSP_DEBUG 9
+
+/*
+#define static
+#define inline
+*/
+
+/************************************
+ * Some useful macros...
+ */
+#define BIT(x)      (1L << (x))
+
+/* 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)    /* Acknowlege 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 {
+        dev_link_t             link;
+        struct Scsi_Host      *host;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74))
+        dev_node_t             node;
+#else
+        int                    ndev;
+        dev_node_t             node[8];
+        struct bus_operations *bus;
+#endif
+        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;
+        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 dev_link_t *nsp_cs_attach (void);
+static void        nsp_cs_detach (dev_link_t *link);
+static void        nsp_cs_release(dev_link_t *link);
+static void        nsp_cs_config (dev_link_t *link);
+static int         nsp_cs_event  (event_t event, int priority, event_callback_args_t *args);
+
+/* Linux SCSI subsystem specific functions */
+static struct Scsi_Host *nsp_detect     (Scsi_Host_Template *sht);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+static        int        nsp_detect_old (Scsi_Host_Template *sht);
+static        int        nsp_release_old(struct Scsi_Host *shpnt);
+#endif
+static const  char      *nsp_info       (struct Scsi_Host *shpnt);
+static        int        nsp_proc_info  (
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73))
+                                         struct Scsi_Host *host,
+#endif
+                                         char   *buffer,
+                                         char  **start,
+                                         off_t   offset,
+                                         int     length,
+#if !(LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73))
+                                         int     hostno,
+#endif
+                                         int     inout);
+static        int        nsp_queuecommand(Scsi_Cmnd *SCpnt, void (* done)(Scsi_Cmnd *SCpnt));
+
+/* Error handler */
+/*static int nsp_eh_abort       (Scsi_Cmnd *SCpnt);*/
+/*static int nsp_eh_device_reset(Scsi_Cmnd *SCpnt);*/
+static int nsp_eh_bus_reset    (Scsi_Cmnd *SCpnt);
+static int nsp_eh_host_reset   (Scsi_Cmnd *SCpnt);
+static int nsp_bus_reset       (nsp_hw_data *data);
+
+/* */
+static int  nsphw_init           (nsp_hw_data *data);
+static int  nsphw_start_selection(Scsi_Cmnd *SCpnt);
+static void nsp_start_timer      (Scsi_Cmnd *SCpnt, int time);
+static int  nsp_fifo_count       (Scsi_Cmnd *SCpnt);
+static void nsp_pio_read         (Scsi_Cmnd *SCpnt);
+static void nsp_pio_write        (Scsi_Cmnd *SCpnt);
+static int  nsp_nexus            (Scsi_Cmnd *SCpnt);
+static void nsp_scsi_done        (Scsi_Cmnd *SCpnt);
+static int  nsp_analyze_sdtr     (Scsi_Cmnd *SCpnt);
+static int  nsp_negate_signal    (Scsi_Cmnd *SCpnt, unsigned char mask, char *str);
+static int  nsp_expect_signal    (Scsi_Cmnd *SCpnt, unsigned char current_phase, unsigned char  mask);
+static int  nsp_xfer             (Scsi_Cmnd *SCpnt, int phase);
+static int  nsp_dataphase_bypass (Scsi_Cmnd *SCpnt);
+static int  nsp_reselected       (Scsi_Cmnd *SCpnt);
+static struct Scsi_Host *nsp_detect(Scsi_Host_Template *sht);
+
+/* Interrupt handler */
+//static irqreturn_t nspintr(int irq, void *dev_id, struct pt_regs *regs);
+
+/* Module entry point*/
+static int  __init nsp_cs_init(void);
+static void __exit nsp_cs_exit(void);
+
+
+/* Debug */
+#ifdef NSP_DEBUG
+static void show_command (Scsi_Cmnd *SCpnt);
+static void show_phase   (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,
+};
+
+
+/**************************************************************************
+ * SCSI messaage
+ */
+#define MSG_COMMAND_COMPLETE 0x00
+#define MSG_EXTENDED         0x01
+#define MSG_ABORT            0x06
+#define MSG_NO_OPERATION     0x08
+#define MSG_BUS_DEVICE_RESET 0x0c
+
+#define MSG_EXT_SDTR         0x01
+
+
+/**************************************************************************
+ * Compatibility functions
+ */
+
+/* for Kernel 2.4 */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
+#  define scsi_register_host(template)   scsi_register_module(MODULE_SCSI_HA, template)
+#  define scsi_unregister_host(template) scsi_unregister_module(MODULE_SCSI_HA, template)
+#  define scsi_host_put(host)            scsi_unregister(host)
+
+typedef void irqreturn_t;
+#  define IRQ_NONE      /* */
+#  define IRQ_HANDLED   /* */
+#  define IRQ_RETVAL(x) /* */
+
+/* This is ad-hoc version of scsi_host_get_next() */
+static inline struct Scsi_Host *scsi_host_get_next(struct Scsi_Host *host)
+{
+        if (host == NULL) {
+                return scsi_hostlist;
+        } else {
+                return host->next;
+        }
+}
+
+/* This is ad-hoc version of scsi_host_hn_get() */
+static inline struct Scsi_Host *scsi_host_hn_get(unsigned short hostno)
+{
+        struct Scsi_Host *host;
+
+        for (host = scsi_host_get_next(NULL); host != NULL;
+             host = scsi_host_get_next(host)) {
+                if (host->host_no == hostno) {
+                        break;
+                }
+        }
+
+        return host;
+}
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+        error_info_t err = { func, ret };
+        pcmcia_report_error(handle, &err);
+}
+
+/* scatter-gather table */
+#  define BUFFER_ADDR (SCpnt->SCp.buffer->address)
+#endif
+
+/* for Kernel 2.6 */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+/* scatter-gather table */
+#  define BUFFER_ADDR ((char *)((unsigned int)(SCpnt->SCp.buffer->page) + SCpnt->SCp.buffer->offset))
+#endif
+
+#endif  /*__nsp_cs__*/
+/* end */