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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/scsi/aha152x.c
Initial import
Diffstat (limited to 'drivers/scsi/aha152x.c')
-rw-r--r--drivers/scsi/aha152x.c3398
1 files changed, 3398 insertions, 0 deletions
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
new file mode 100644
index 000000000..e31c460a1
--- /dev/null
+++ b/drivers/scsi/aha152x.c
@@ -0,0 +1,3398 @@
+/* aha152x.c -- Adaptec AHA-152x driver
+ * Author: Jürgen E. Fischer, fischer@norbit.de
+ * Copyright 1993-2004 Jürgen E. Fischer
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ *
+ * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $
+ *
+ * $Log: aha152x.c,v $
+ * Revision 2.7 2004/01/24 11:42:59 fischer
+ * - gather code that is not used by PCMCIA at the end
+ * - move request_region for !PCMCIA case to detection
+ * - migration to new scsi host api (remove legacy code)
+ * - free host scribble before scsi_done
+ * - fix error handling
+ * - one isapnp device added to id_table
+ *
+ * Revision 2.6 2003/10/30 20:52:47 fischer
+ * - interfaces changes for kernel 2.6
+ * - aha152x_probe_one introduced for pcmcia stub
+ * - fixed pnpdev handling
+ * - instead of allocation a new one, reuse command for request sense after check condition and reset
+ * - fixes race in is_complete
+ *
+ * Revision 2.5 2002/04/14 11:24:53 fischer
+ * - isapnp support
+ * - abort fixed
+ * - 2.5 support
+ *
+ * Revision 2.4 2000/12/16 12:53:56 fischer
+ * - allow REQUEST SENSE to be queued
+ * - handle shared PCI interrupts
+ *
+ * Revision 2.3 2000/11/04 16:40:26 fischer
+ * - handle data overruns
+ * - extend timeout for data phases
+ *
+ * Revision 2.2 2000/08/08 19:54:53 fischer
+ * - minor changes
+ *
+ * Revision 2.1 2000/05/17 16:23:17 fischer
+ * - signature update
+ * - fix for data out w/o scatter gather
+ *
+ * Revision 2.0 1999/12/25 15:07:32 fischer
+ * - interrupt routine completly reworked
+ * - basic support for new eh code
+ *
+ * Revision 1.21 1999/11/10 23:46:36 fischer
+ * - default to synchronous operation
+ * - synchronous negotiation fixed
+ * - added timeout to loops
+ * - debugging output can be controlled through procfs
+ *
+ * Revision 1.20 1999/11/07 18:37:31 fischer
+ * - synchronous operation works
+ * - resid support for sg driver
+ *
+ * Revision 1.19 1999/11/02 22:39:59 fischer
+ * - moved leading comments to README.aha152x
+ * - new additional module parameters
+ * - updates for 2.3
+ * - support for the Tripace TC1550 controller
+ * - interrupt handling changed
+ *
+ * Revision 1.18 1996/09/07 20:10:40 fischer
+ * - fixed can_queue handling (multiple outstanding commands working again)
+ *
+ * Revision 1.17 1996/08/17 16:05:14 fischer
+ * - biosparam improved
+ * - interrupt verification
+ * - updated documentation
+ * - cleanups
+ *
+ * Revision 1.16 1996/06/09 00:04:56 root
+ * - added configuration symbols for insmod (aha152x/aha152x1)
+ *
+ * Revision 1.15 1996/04/30 14:52:06 fischer
+ * - proc info fixed
+ * - support for extended translation for >1GB disks
+ *
+ * Revision 1.14 1996/01/17 15:11:20 fischer
+ * - fixed lockup in MESSAGE IN phase after reconnection
+ *
+ * Revision 1.13 1996/01/09 02:15:53 fischer
+ * - some cleanups
+ * - moved request_irq behind controller initialization
+ * (to avoid spurious interrupts)
+ *
+ * Revision 1.12 1995/12/16 12:26:07 fischer
+ * - barrier()s added
+ * - configurable RESET delay added
+ *
+ * Revision 1.11 1995/12/06 21:18:35 fischer
+ * - some minor updates
+ *
+ * Revision 1.10 1995/07/22 19:18:45 fischer
+ * - support for 2 controllers
+ * - started synchronous data transfers (not working yet)
+ *
+ * Revision 1.9 1995/03/18 09:20:24 root
+ * - patches for PCMCIA and modules
+ *
+ * Revision 1.8 1995/01/21 22:07:19 root
+ * - snarf_region => request_region
+ * - aha152x_intr interface change
+ *
+ * Revision 1.7 1995/01/02 23:19:36 root
+ * - updated COMMAND_SIZE to cmd_len
+ * - changed sti() to restore_flags()
+ * - fixed some #ifdef which generated warnings
+ *
+ * Revision 1.6 1994/11/24 20:35:27 root
+ * - problem with odd number of bytes in fifo fixed
+ *
+ * Revision 1.5 1994/10/30 14:39:56 root
+ * - abort code fixed
+ * - debugging improved
+ *
+ * Revision 1.4 1994/09/12 11:33:01 root
+ * - irqaction to request_irq
+ * - abortion updated
+ *
+ * Revision 1.3 1994/08/04 13:53:05 root
+ * - updates for mid-level-driver changes
+ * - accept unexpected BUSFREE phase as error condition
+ * - parity check now configurable
+ *
+ * Revision 1.2 1994/07/03 12:56:36 root
+ * - cleaned up debugging code
+ * - more tweaking on reset delays
+ * - updated abort/reset code (pretty untested...)
+ *
+ * Revision 1.1 1994/05/28 21:18:49 root
+ * - update for mid-level interface change (abort-reset)
+ * - delays after resets adjusted for some slow devices
+ *
+ * Revision 1.0 1994/03/25 12:52:00 root
+ * - Fixed "more data than expected" problem
+ * - added new BIOS signatures
+ *
+ * Revision 0.102 1994/01/31 20:44:12 root
+ * - minor changes in insw/outsw handling
+ *
+ * Revision 0.101 1993/12/13 01:16:27 root
+ * - fixed STATUS phase (non-GOOD stati were dropped sometimes;
+ * fixes problems with CD-ROM sector size detection & media change)
+ *
+ * Revision 0.100 1993/12/10 16:58:47 root
+ * - fix for unsuccessful selections in case of non-continuous id assignments
+ * on the scsi bus.
+ *
+ * Revision 0.99 1993/10/24 16:19:59 root
+ * - fixed DATA IN (rare read errors gone)
+ *
+ * Revision 0.98 1993/10/17 12:54:44 root
+ * - fixed some recent fixes (shame on me)
+ * - moved initialization of scratch area to aha152x_queue
+ *
+ * Revision 0.97 1993/10/09 18:53:53 root
+ * - DATA IN fixed. Rarely left data in the fifo.
+ *
+ * Revision 0.96 1993/10/03 00:53:59 root
+ * - minor changes on DATA IN
+ *
+ * Revision 0.95 1993/09/24 10:36:01 root
+ * - change handling of MSGI after reselection
+ * - fixed sti/cli
+ * - minor changes
+ *
+ * Revision 0.94 1993/09/18 14:08:22 root
+ * - fixed bug in multiple outstanding command code
+ * - changed detection
+ * - support for kernel command line configuration
+ * - reset corrected
+ * - changed message handling
+ *
+ * Revision 0.93 1993/09/15 20:41:19 root
+ * - fixed bugs with multiple outstanding commands
+ *
+ * Revision 0.92 1993/09/13 02:46:33 root
+ * - multiple outstanding commands work (no problems with IBM drive)
+ *
+ * Revision 0.91 1993/09/12 20:51:46 root
+ * added multiple outstanding commands
+ * (some problem with this $%&? IBM device remain)
+ *
+ * Revision 0.9 1993/09/12 11:11:22 root
+ * - corrected auto-configuration
+ * - changed the auto-configuration (added some '#define's)
+ * - added support for dis-/reconnection
+ *
+ * Revision 0.8 1993/09/06 23:09:39 root
+ * - added support for the drive activity light
+ * - minor changes
+ *
+ * Revision 0.7 1993/09/05 14:30:15 root
+ * - improved phase detection
+ * - now using the new snarf_region code of 0.99pl13
+ *
+ * Revision 0.6 1993/09/02 11:01:38 root
+ * first public release; added some signatures and biosparam()
+ *
+ * Revision 0.5 1993/08/30 10:23:30 root
+ * fixed timing problems with my IBM drive
+ *
+ * Revision 0.4 1993/08/29 14:06:52 root
+ * fixed some problems with timeouts due incomplete commands
+ *
+ * Revision 0.3 1993/08/28 15:55:03 root
+ * writing data works too. mounted and worked on a dos partition
+ *
+ * Revision 0.2 1993/08/27 22:42:07 root
+ * reading data works. Mounted a msdos partition.
+ *
+ * Revision 0.1 1993/08/25 13:38:30 root
+ * first "damn thing doesn't work" version
+ *
+ * Revision 0.0 1993/08/14 19:54:25 root
+ * empty function bodies; detect() works.
+ *
+ *
+ **************************************************************************
+
+ see Documentation/scsi/aha152x.txt for configuration details
+
+ **************************************************************************/
+
+#include <linux/module.h>
+#include <asm/irq.h>
+#include <linux/io.h>
+#include <linux/blkdev.h>
+#include <linux/completion.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/wait.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/isapnp.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <scsi/scsicam.h>
+
+#include "scsi.h"
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_spi.h>
+#include <scsi/scsi_eh.h>
+#include "aha152x.h"
+
+static LIST_HEAD(aha152x_host_list);
+
+
+/* DEFINES */
+
+/* For PCMCIA cards, always use AUTOCONF */
+#if defined(PCMCIA) || defined(MODULE)
+#if !defined(AUTOCONF)
+#define AUTOCONF
+#endif
+#endif
+
+#if !defined(AUTOCONF) && !defined(SETUP0)
+#error define AUTOCONF or SETUP0
+#endif
+
+#define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags)
+#define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags)
+
+#define LEAD "(scsi%d:%d:%d) "
+#define INFO_LEAD KERN_INFO LEAD
+#define CMDINFO(cmd) \
+ (cmd) ? ((cmd)->device->host->host_no) : -1, \
+ (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
+ (cmd) ? ((u8)(cmd)->device->lun & 0x07) : -1
+
+static inline void
+CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
+{
+ scsi_set_resid(cmd, scsi_get_resid(cmd) + inc);
+}
+
+#define DELAY_DEFAULT 1000
+
+#if defined(PCMCIA)
+#define IRQ_MIN 0
+#define IRQ_MAX 16
+#else
+#define IRQ_MIN 9
+#if defined(__PPC)
+#define IRQ_MAX (nr_irqs-1)
+#else
+#define IRQ_MAX 12
+#endif
+#endif
+
+enum {
+ not_issued = 0x0001, /* command not yet issued */
+ selecting = 0x0002, /* target is being selected */
+ identified = 0x0004, /* IDENTIFY was sent */
+ disconnected = 0x0008, /* target disconnected */
+ completed = 0x0010, /* target sent COMMAND COMPLETE */
+ aborted = 0x0020, /* ABORT was sent */
+ resetted = 0x0040, /* BUS DEVICE RESET was sent */
+ spiordy = 0x0080, /* waiting for SPIORDY to raise */
+ syncneg = 0x0100, /* synchronous negotiation in progress */
+ aborting = 0x0200, /* ABORT is pending */
+ resetting = 0x0400, /* BUS DEVICE RESET is pending */
+ check_condition = 0x0800, /* requesting sense after CHECK CONDITION */
+};
+
+MODULE_AUTHOR("Jürgen Fischer");
+MODULE_DESCRIPTION(AHA152X_REVID);
+MODULE_LICENSE("GPL");
+
+#if !defined(PCMCIA)
+#if defined(MODULE)
+static int io[] = {0, 0};
+module_param_array(io, int, NULL, 0);
+MODULE_PARM_DESC(io,"base io address of controller");
+
+static int irq[] = {0, 0};
+module_param_array(irq, int, NULL, 0);
+MODULE_PARM_DESC(irq,"interrupt for controller");
+
+static int scsiid[] = {7, 7};
+module_param_array(scsiid, int, NULL, 0);
+MODULE_PARM_DESC(scsiid,"scsi id of controller");
+
+static int reconnect[] = {1, 1};
+module_param_array(reconnect, int, NULL, 0);
+MODULE_PARM_DESC(reconnect,"allow targets to disconnect");
+
+static int parity[] = {1, 1};
+module_param_array(parity, int, NULL, 0);
+MODULE_PARM_DESC(parity,"use scsi parity");
+
+static int sync[] = {1, 1};
+module_param_array(sync, int, NULL, 0);
+MODULE_PARM_DESC(sync,"use synchronous transfers");
+
+static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT};
+module_param_array(delay, int, NULL, 0);
+MODULE_PARM_DESC(delay,"scsi reset delay");
+
+static int exttrans[] = {0, 0};
+module_param_array(exttrans, int, NULL, 0);
+MODULE_PARM_DESC(exttrans,"use extended translation");
+
+static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
+module_param_array(aha152x, int, NULL, 0);
+MODULE_PARM_DESC(aha152x, "parameters for first controller");
+
+static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
+module_param_array(aha152x1, int, NULL, 0);
+MODULE_PARM_DESC(aha152x1, "parameters for second controller");
+#endif /* MODULE */
+
+#ifdef __ISAPNP__
+static struct isapnp_device_id id_table[] = {
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 },
+ { ISAPNP_DEVICE_SINGLE_END, }
+};
+MODULE_DEVICE_TABLE(isapnp, id_table);
+#endif /* ISAPNP */
+
+#endif /* !PCMCIA */
+
+static struct scsi_host_template aha152x_driver_template;
+
+/*
+ * internal states of the host
+ *
+ */
+enum aha152x_state {
+ idle=0,
+ unknown,
+ seldo,
+ seldi,
+ selto,
+ busfree,
+ msgo,
+ cmd,
+ msgi,
+ status,
+ datai,
+ datao,
+ parerr,
+ rsti,
+ maxstate
+};
+
+/*
+ * current state information of the host
+ *
+ */
+struct aha152x_hostdata {
+ Scsi_Cmnd *issue_SC;
+ /* pending commands to issue */
+
+ Scsi_Cmnd *current_SC;
+ /* current command on the bus */
+
+ Scsi_Cmnd *disconnected_SC;
+ /* commands that disconnected */
+
+ Scsi_Cmnd *done_SC;
+ /* command that was completed */
+
+ spinlock_t lock;
+ /* host lock */
+
+#if defined(AHA152X_STAT)
+ int total_commands;
+ int disconnections;
+ int busfree_without_any_action;
+ int busfree_without_old_command;
+ int busfree_without_new_command;
+ int busfree_without_done_command;
+ int busfree_with_check_condition;
+ int count[maxstate];
+ int count_trans[maxstate];
+ unsigned long time[maxstate];
+#endif
+
+ int commands; /* current number of commands */
+
+ int reconnect; /* disconnection allowed */
+ int parity; /* parity checking enabled */
+ int synchronous; /* synchronous transferes enabled */
+ int delay; /* reset out delay */
+ int ext_trans; /* extended translation enabled */
+
+ int swint; /* software-interrupt was fired during detect() */
+ int service; /* bh needs to be run */
+ int in_intr; /* bh is running */
+
+ /* current state,
+ previous state,
+ last state different from current state */
+ enum aha152x_state state, prevstate, laststate;
+
+ int target;
+ /* reconnecting target */
+
+ unsigned char syncrate[8];
+ /* current synchronous transfer agreements */
+
+ unsigned char syncneg[8];
+ /* 0: no negotiation;
+ * 1: negotiation in progress;
+ * 2: negotiation completed
+ */
+
+ int cmd_i;
+ /* number of sent bytes of current command */
+
+ int msgi_len;
+ /* number of received message bytes */
+ unsigned char msgi[256];
+ /* received message bytes */
+
+ int msgo_i, msgo_len;
+ /* number of sent bytes and length of current messages */
+ unsigned char msgo[256];
+ /* pending messages */
+
+ int data_len;
+ /* number of sent/received bytes in dataphase */
+
+ unsigned long io_port0;
+ unsigned long io_port1;
+
+#ifdef __ISAPNP__
+ struct pnp_dev *pnpdev;
+#endif
+ struct list_head host_list;
+};
+
+
+/*
+ * host specific command extension
+ *
+ */
+struct aha152x_scdata {
+ Scsi_Cmnd *next; /* next sc in queue */
+ struct completion *done;/* semaphore to block on */
+ struct scsi_eh_save ses;
+};
+
+/* access macros for hostdata */
+
+#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
+
+#define HOSTNO ((shpnt)->host_no)
+
+#define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
+#define DONE_SC (HOSTDATA(shpnt)->done_SC)
+#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
+#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
+#define QLOCK (HOSTDATA(shpnt)->lock)
+#define QLOCKER (HOSTDATA(shpnt)->locker)
+#define QLOCKERL (HOSTDATA(shpnt)->lockerl)
+
+#define STATE (HOSTDATA(shpnt)->state)
+#define PREVSTATE (HOSTDATA(shpnt)->prevstate)
+#define LASTSTATE (HOSTDATA(shpnt)->laststate)
+
+#define RECONN_TARGET (HOSTDATA(shpnt)->target)
+
+#define CMD_I (HOSTDATA(shpnt)->cmd_i)
+
+#define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
+#define MSGO_I (HOSTDATA(shpnt)->msgo_i)
+#define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
+#define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
+
+#define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
+#define MSGILEN (HOSTDATA(shpnt)->msgi_len)
+#define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
+
+#define DATA_LEN (HOSTDATA(shpnt)->data_len)
+
+#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
+#define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
+
+#define DELAY (HOSTDATA(shpnt)->delay)
+#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
+#define TC1550 (HOSTDATA(shpnt)->tc1550)
+#define RECONNECT (HOSTDATA(shpnt)->reconnect)
+#define PARITY (HOSTDATA(shpnt)->parity)
+#define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
+
+#define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
+#define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
+
+#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
+#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
+#define SCSEM(SCpnt) SCDATA(SCpnt)->done
+
+#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
+
+/* state handling */
+static void seldi_run(struct Scsi_Host *shpnt);
+static void seldo_run(struct Scsi_Host *shpnt);
+static void selto_run(struct Scsi_Host *shpnt);
+static void busfree_run(struct Scsi_Host *shpnt);
+
+static void msgo_init(struct Scsi_Host *shpnt);
+static void msgo_run(struct Scsi_Host *shpnt);
+static void msgo_end(struct Scsi_Host *shpnt);
+
+static void cmd_init(struct Scsi_Host *shpnt);
+static void cmd_run(struct Scsi_Host *shpnt);
+static void cmd_end(struct Scsi_Host *shpnt);
+
+static void datai_init(struct Scsi_Host *shpnt);
+static void datai_run(struct Scsi_Host *shpnt);
+static void datai_end(struct Scsi_Host *shpnt);
+
+static void datao_init(struct Scsi_Host *shpnt);
+static void datao_run(struct Scsi_Host *shpnt);
+static void datao_end(struct Scsi_Host *shpnt);
+
+static void status_run(struct Scsi_Host *shpnt);
+
+static void msgi_run(struct Scsi_Host *shpnt);
+static void msgi_end(struct Scsi_Host *shpnt);
+
+static void parerr_run(struct Scsi_Host *shpnt);
+static void rsti_run(struct Scsi_Host *shpnt);
+
+static void is_complete(struct Scsi_Host *shpnt);
+
+/*
+ * driver states
+ *
+ */
+static struct {
+ char *name;
+ void (*init)(struct Scsi_Host *);
+ void (*run)(struct Scsi_Host *);
+ void (*end)(struct Scsi_Host *);
+ int spio;
+} states[] = {
+ { "idle", NULL, NULL, NULL, 0},
+ { "unknown", NULL, NULL, NULL, 0},
+ { "seldo", NULL, seldo_run, NULL, 0},
+ { "seldi", NULL, seldi_run, NULL, 0},
+ { "selto", NULL, selto_run, NULL, 0},
+ { "busfree", NULL, busfree_run, NULL, 0},
+ { "msgo", msgo_init, msgo_run, msgo_end, 1},
+ { "cmd", cmd_init, cmd_run, cmd_end, 1},
+ { "msgi", NULL, msgi_run, msgi_end, 1},
+ { "status", NULL, status_run, NULL, 1},
+ { "datai", datai_init, datai_run, datai_end, 0},
+ { "datao", datao_init, datao_run, datao_end, 0},
+ { "parerr", NULL, parerr_run, NULL, 0},
+ { "rsti", NULL, rsti_run, NULL, 0},
+};
+
+/* setup & interrupt */
+static irqreturn_t intr(int irq, void *dev_id);
+static void reset_ports(struct Scsi_Host *shpnt);
+static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
+static void done(struct Scsi_Host *shpnt, int error);
+
+/* diagnostics */
+static void show_command(Scsi_Cmnd * ptr);
+static void show_queues(struct Scsi_Host *shpnt);
+static void disp_enintr(struct Scsi_Host *shpnt);
+
+
+/*
+ * queue services:
+ *
+ */
+static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
+{
+ Scsi_Cmnd *end;
+
+ SCNEXT(new_SC) = NULL;
+ if (!*SC)
+ *SC = new_SC;
+ else {
+ for (end = *SC; SCNEXT(end); end = SCNEXT(end))
+ ;
+ SCNEXT(end) = new_SC;
+ }
+}
+
+static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
+{
+ Scsi_Cmnd *ptr;
+
+ ptr = *SC;
+ if (ptr) {
+ *SC = SCNEXT(*SC);
+ SCNEXT(ptr)=NULL;
+ }
+ return ptr;
+}
+
+static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
+{
+ Scsi_Cmnd *ptr, *prev;
+
+ for (ptr = *SC, prev = NULL;
+ ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
+ prev = ptr, ptr = SCNEXT(ptr))
+ ;
+
+ if (ptr) {
+ if (prev)
+ SCNEXT(prev) = SCNEXT(ptr);
+ else
+ *SC = SCNEXT(ptr);
+
+ SCNEXT(ptr)=NULL;
+ }
+
+ return ptr;
+}
+
+static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
+{
+ Scsi_Cmnd *ptr, *prev;
+
+ for (ptr = *SC, prev = NULL;
+ ptr && SCp!=ptr;
+ prev = ptr, ptr = SCNEXT(ptr))
+ ;
+
+ if (ptr) {
+ if (prev)
+ SCNEXT(prev) = SCNEXT(ptr);
+ else
+ *SC = SCNEXT(ptr);
+
+ SCNEXT(ptr)=NULL;
+ }
+
+ return ptr;
+}
+
+static irqreturn_t swintr(int irqno, void *dev_id)
+{
+ struct Scsi_Host *shpnt = dev_id;
+
+ HOSTDATA(shpnt)->swint++;
+
+ SETPORT(DMACNTRL0, INTEN);
+ return IRQ_HANDLED;
+}
+
+struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
+{
+ struct Scsi_Host *shpnt;
+
+ shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
+ if (!shpnt) {
+ printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
+ return NULL;
+ }
+
+ memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
+ INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
+
+ /* need to have host registered before triggering any interrupt */
+ list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
+
+ shpnt->io_port = setup->io_port;
+ shpnt->n_io_port = IO_RANGE;
+ shpnt->irq = setup->irq;
+
+ if (!setup->tc1550) {
+ HOSTIOPORT0 = setup->io_port;
+ HOSTIOPORT1 = setup->io_port;
+ } else {
+ HOSTIOPORT0 = setup->io_port+0x10;
+ HOSTIOPORT1 = setup->io_port-0x10;
+ }
+
+ spin_lock_init(&QLOCK);
+ RECONNECT = setup->reconnect;
+ SYNCHRONOUS = setup->synchronous;
+ PARITY = setup->parity;
+ DELAY = setup->delay;
+ EXT_TRANS = setup->ext_trans;
+
+ SETPORT(SCSIID, setup->scsiid << 4);
+ shpnt->this_id = setup->scsiid;
+
+ if (setup->reconnect)
+ shpnt->can_queue = AHA152X_MAXQUEUE;
+
+ /* RESET OUT */
+ printk("aha152x: resetting bus...\n");
+ SETPORT(SCSISEQ, SCSIRSTO);
+ mdelay(256);
+ SETPORT(SCSISEQ, 0);
+ mdelay(DELAY);
+
+ reset_ports(shpnt);
+
+ printk(KERN_INFO
+ "aha152x%d%s: "
+ "vital data: rev=%x, "
+ "io=0x%03lx (0x%03lx/0x%03lx), "
+ "irq=%d, "
+ "scsiid=%d, "
+ "reconnect=%s, "
+ "parity=%s, "
+ "synchronous=%s, "
+ "delay=%d, "
+ "extended translation=%s\n",
+ shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
+ GETPORT(REV) & 0x7,
+ shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
+ shpnt->irq,
+ shpnt->this_id,
+ RECONNECT ? "enabled" : "disabled",
+ PARITY ? "enabled" : "disabled",
+ SYNCHRONOUS ? "enabled" : "disabled",
+ DELAY,
+ EXT_TRANS ? "enabled" : "disabled");
+
+ /* not expecting any interrupts */
+ SETPORT(SIMODE0, 0);
+ SETPORT(SIMODE1, 0);
+
+ if (request_irq(shpnt->irq, swintr, IRQF_SHARED, "aha152x", shpnt)) {
+ printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
+ goto out_host_put;
+ }
+
+ HOSTDATA(shpnt)->swint = 0;
+
+ printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
+
+ mb();
+ SETPORT(DMACNTRL0, SWINT|INTEN);
+ mdelay(1000);
+ free_irq(shpnt->irq, shpnt);
+
+ if (!HOSTDATA(shpnt)->swint) {
+ if (TESTHI(DMASTAT, INTSTAT)) {
+ printk("lost.\n");
+ } else {
+ printk("failed.\n");
+ }
+
+ SETPORT(DMACNTRL0, INTEN);
+
+ printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
+ "Please verify.\n", shpnt->host_no, shpnt->irq);
+ goto out_host_put;
+ }
+ printk("ok.\n");
+
+
+ /* clear interrupts */
+ SETPORT(SSTAT0, 0x7f);
+ SETPORT(SSTAT1, 0xef);
+
+ if (request_irq(shpnt->irq, intr, IRQF_SHARED, "aha152x", shpnt)) {
+ printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
+ goto out_host_put;
+ }
+
+ if( scsi_add_host(shpnt, NULL) ) {
+ free_irq(shpnt->irq, shpnt);
+ printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
+ goto out_host_put;
+ }
+
+ scsi_scan_host(shpnt);
+
+ return shpnt;
+
+out_host_put:
+ list_del(&HOSTDATA(shpnt)->host_list);
+ scsi_host_put(shpnt);
+
+ return NULL;
+}
+
+void aha152x_release(struct Scsi_Host *shpnt)
+{
+ if (!shpnt)
+ return;
+
+ scsi_remove_host(shpnt);
+ if (shpnt->irq)
+ free_irq(shpnt->irq, shpnt);
+
+#if !defined(PCMCIA)
+ if (shpnt->io_port)
+ release_region(shpnt->io_port, IO_RANGE);
+#endif
+
+#ifdef __ISAPNP__
+ if (HOSTDATA(shpnt)->pnpdev)
+ pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
+#endif
+
+ list_del(&HOSTDATA(shpnt)->host_list);
+ scsi_host_put(shpnt);
+}
+
+
+/*
+ * setup controller to generate interrupts depending
+ * on current state (lock has to be acquired)
+ *
+ */
+static int setup_expected_interrupts(struct Scsi_Host *shpnt)
+{
+ if(CURRENT_SC) {
+ CURRENT_SC->SCp.phase |= 1 << 16;
+
+ if(CURRENT_SC->SCp.phase & selecting) {
+ SETPORT(SSTAT1, SELTO);
+ SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
+ SETPORT(SIMODE1, ENSELTIMO);
+ } else {
+ SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
+ SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
+ }
+ } else if(STATE==seldi) {
+ SETPORT(SIMODE0, 0);
+ SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
+ } else {
+ SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
+ SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
+ }
+
+ if(!HOSTDATA(shpnt)->in_intr)
+ SETBITS(DMACNTRL0, INTEN);
+
+ return TESTHI(DMASTAT, INTSTAT);
+}
+
+
+/*
+ * Queue a command and setup interrupts for a free bus.
+ */
+static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
+ int phase, void (*done)(Scsi_Cmnd *))
+{
+ struct Scsi_Host *shpnt = SCpnt->device->host;
+ unsigned long flags;
+
+ SCpnt->scsi_done = done;
+ SCpnt->SCp.phase = not_issued | phase;
+ SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */
+ SCpnt->SCp.Message = 0;
+ SCpnt->SCp.have_data_in = 0;
+ SCpnt->SCp.sent_command = 0;
+
+ if(SCpnt->SCp.phase & (resetting|check_condition)) {
+ if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
+ scmd_printk(KERN_ERR, SCpnt, "cannot reuse command\n");
+ return FAILED;
+ }
+ } else {
+ SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
+ if(!SCpnt->host_scribble) {
+ scmd_printk(KERN_ERR, SCpnt, "allocation failed\n");
+ return FAILED;
+ }
+ }
+
+ SCNEXT(SCpnt) = NULL;
+ SCSEM(SCpnt) = complete;
+
+ /* setup scratch area
+ SCp.ptr : buffer pointer
+ SCp.this_residual : buffer length
+ SCp.buffer : next buffer
+ SCp.buffers_residual : left buffers in list
+ SCp.phase : current state of the command */
+
+ if ((phase & resetting) || !scsi_sglist(SCpnt)) {
+ SCpnt->SCp.ptr = NULL;
+ SCpnt->SCp.this_residual = 0;
+ scsi_set_resid(SCpnt, 0);
+ SCpnt->SCp.buffer = NULL;
+ SCpnt->SCp.buffers_residual = 0;
+ } else {
+ scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
+ SCpnt->SCp.buffer = scsi_sglist(SCpnt);
+ SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
+ SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
+ SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
+ }
+
+ DO_LOCK(flags);
+
+#if defined(AHA152X_STAT)
+ HOSTDATA(shpnt)->total_commands++;
+#endif
+
+ /* Turn led on, when this is the first command. */
+ HOSTDATA(shpnt)->commands++;
+ if (HOSTDATA(shpnt)->commands==1)
+ SETPORT(PORTA, 1);
+
+ append_SC(&ISSUE_SC, SCpnt);
+
+ if(!HOSTDATA(shpnt)->in_intr)
+ setup_expected_interrupts(shpnt);
+
+ DO_UNLOCK(flags);
+
+ return 0;
+}
+
+/*
+ * queue a command
+ *
+ */
+static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
+{
+ return aha152x_internal_queue(SCpnt, NULL, 0, done);
+}
+
+static DEF_SCSI_QCMD(aha152x_queue)
+
+
+/*
+ *
+ */
+static void reset_done(Scsi_Cmnd *SCpnt)
+{
+ if(SCSEM(SCpnt)) {
+ complete(SCSEM(SCpnt));
+ } else {
+ printk(KERN_ERR "aha152x: reset_done w/o completion\n");
+ }
+}
+
+/*
+ * Abort a command
+ *
+ */
+static int aha152x_abort(Scsi_Cmnd *SCpnt)
+{
+ struct Scsi_Host *shpnt = SCpnt->device->host;
+ Scsi_Cmnd *ptr;
+ unsigned long flags;
+
+ DO_LOCK(flags);
+
+ ptr=remove_SC(&ISSUE_SC, SCpnt);
+
+ if(ptr) {
+ HOSTDATA(shpnt)->commands--;
+ if (!HOSTDATA(shpnt)->commands)
+ SETPORT(PORTA, 0);
+ DO_UNLOCK(flags);
+
+ kfree(SCpnt->host_scribble);
+ SCpnt->host_scribble=NULL;
+
+ return SUCCESS;
+ }
+
+ DO_UNLOCK(flags);
+
+ /*
+ * FIXME:
+ * for current command: queue ABORT for message out and raise ATN
+ * for disconnected command: pseudo SC with ABORT message or ABORT on reselection?
+ *
+ */
+
+ scmd_printk(KERN_ERR, SCpnt,
+ "cannot abort running or disconnected command\n");
+
+ return FAILED;
+}
+
+/*
+ * Reset a device
+ *
+ */
+static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
+{
+ struct Scsi_Host *shpnt = SCpnt->device->host;
+ DECLARE_COMPLETION(done);
+ int ret, issued, disconnected;
+ unsigned char old_cmd_len = SCpnt->cmd_len;
+ unsigned long flags;
+ unsigned long timeleft;
+
+ if(CURRENT_SC==SCpnt) {
+ scmd_printk(KERN_ERR, SCpnt, "cannot reset current device\n");
+ return FAILED;
+ }
+
+ DO_LOCK(flags);
+ issued = remove_SC(&ISSUE_SC, SCpnt) == NULL;
+ disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
+ DO_UNLOCK(flags);
+
+ SCpnt->cmd_len = 0;
+
+ aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
+
+ timeleft = wait_for_completion_timeout(&done, 100*HZ);
+ if (!timeleft) {
+ /* remove command from issue queue */
+ DO_LOCK(flags);
+ remove_SC(&ISSUE_SC, SCpnt);
+ DO_UNLOCK(flags);
+ }
+
+ SCpnt->cmd_len = old_cmd_len;
+
+ DO_LOCK(flags);
+
+ if(SCpnt->SCp.phase & resetted) {
+ HOSTDATA(shpnt)->commands--;
+ if (!HOSTDATA(shpnt)->commands)
+ SETPORT(PORTA, 0);
+ kfree(SCpnt->host_scribble);
+ SCpnt->host_scribble=NULL;
+
+ ret = SUCCESS;
+ } else {
+ /* requeue */
+ if(!issued) {
+ append_SC(&ISSUE_SC, SCpnt);
+ } else if(disconnected) {
+ append_SC(&DISCONNECTED_SC, SCpnt);
+ }
+
+ ret = FAILED;
+ }
+
+ DO_UNLOCK(flags);
+ return ret;
+}
+
+static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
+{
+ Scsi_Cmnd *ptr;
+
+ ptr=*SCs;
+ while(ptr) {
+ Scsi_Cmnd *next;
+
+ if(SCDATA(ptr)) {
+ next = SCNEXT(ptr);
+ } else {
+ scmd_printk(KERN_DEBUG, ptr,
+ "queue corrupted at %p\n", ptr);
+ next = NULL;
+ }
+
+ if (!ptr->device->soft_reset) {
+ remove_SC(SCs, ptr);
+ HOSTDATA(shpnt)->commands--;
+ kfree(ptr->host_scribble);
+ ptr->host_scribble=NULL;
+ }
+
+ ptr = next;
+ }
+}
+
+/*
+ * Reset the bus
+ *
+ */
+static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
+{
+ unsigned long flags;
+
+ DO_LOCK(flags);
+
+ free_hard_reset_SCs(shpnt, &ISSUE_SC);
+ free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
+
+ SETPORT(SCSISEQ, SCSIRSTO);
+ mdelay(256);
+ SETPORT(SCSISEQ, 0);
+ mdelay(DELAY);
+
+ setup_expected_interrupts(shpnt);
+ if(HOSTDATA(shpnt)->commands==0)
+ SETPORT(PORTA, 0);
+
+ DO_UNLOCK(flags);
+
+ return SUCCESS;
+}
+
+/*
+ * Reset the bus
+ *
+ */
+static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
+{
+ return aha152x_bus_reset_host(SCpnt->device->host);
+}
+
+/*
+ * Restore default values to the AIC-6260 registers and reset the fifos
+ *
+ */
+static void reset_ports(struct Scsi_Host *shpnt)
+{
+ unsigned long flags;
+
+ /* disable interrupts */
+ SETPORT(DMACNTRL0, RSTFIFO);
+
+ SETPORT(SCSISEQ, 0);
+
+ SETPORT(SXFRCTL1, 0);
+ SETPORT(SCSISIG, 0);
+ SETRATE(0);
+
+ /* clear all interrupt conditions */
+ SETPORT(SSTAT0, 0x7f);
+ SETPORT(SSTAT1, 0xef);
+
+ SETPORT(SSTAT4, SYNCERR | FWERR | FRERR);
+
+ SETPORT(DMACNTRL0, 0);
+ SETPORT(DMACNTRL1, 0);
+
+ SETPORT(BRSTCNTRL, 0xf1);
+
+ /* clear SCSI fifos and transfer count */
+ SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
+ SETPORT(SXFRCTL0, CH1);
+
+ DO_LOCK(flags);
+ setup_expected_interrupts(shpnt);
+ DO_UNLOCK(flags);
+}
+
+/*
+ * Reset the host (bus and controller)
+ *
+ */
+int aha152x_host_reset_host(struct Scsi_Host *shpnt)
+{
+ aha152x_bus_reset_host(shpnt);
+ reset_ports(shpnt);
+
+ return SUCCESS;
+}
+
+/*
+ * Reset the host (bus and controller)
+ *
+ */
+static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
+{
+ return aha152x_host_reset_host(SCpnt->device->host);
+}
+
+/*
+ * Return the "logical geometry"
+ *
+ */
+static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
+ sector_t capacity, int *info_array)
+{
+ struct Scsi_Host *shpnt = sdev->host;
+
+ /* try default translation */
+ info_array[0] = 64;
+ info_array[1] = 32;
+ info_array[2] = (unsigned long)capacity / (64 * 32);
+
+ /* for disks >1GB do some guessing */
+ if (info_array[2] >= 1024) {
+ int info[3];
+
+ /* try to figure out the geometry from the partition table */
+ if (scsicam_bios_param(bdev, capacity, info) < 0 ||
+ !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
+ if (EXT_TRANS) {
+ printk(KERN_NOTICE
+ "aha152x: unable to verify geometry for disk with >1GB.\n"
+ " using extended translation.\n");
+ info_array[0] = 255;
+ info_array[1] = 63;
+ info_array[2] = (unsigned long)capacity / (255 * 63);
+ } else {
+ printk(KERN_NOTICE
+ "aha152x: unable to verify geometry for disk with >1GB.\n"
+ " Using default translation. Please verify yourself.\n"
+ " Perhaps you need to enable extended translation in the driver.\n"
+ " See Documentation/scsi/aha152x.txt for details.\n");
+ }
+ } else {
+ info_array[0] = info[0];
+ info_array[1] = info[1];
+ info_array[2] = info[2];
+
+ if (info[0] == 255 && !EXT_TRANS) {
+ printk(KERN_NOTICE
+ "aha152x: current partition table is using extended translation.\n"
+ " using it also, although it's not explicitly enabled.\n");
+ }
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Internal done function
+ *
+ */
+static void done(struct Scsi_Host *shpnt, int error)
+{
+ if (CURRENT_SC) {
+ if(DONE_SC)
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "there's already a completed command %p "
+ "- will cause abort\n", DONE_SC);
+
+ DONE_SC = CURRENT_SC;
+ CURRENT_SC = NULL;
+ DONE_SC->result = error;
+ } else
+ printk(KERN_ERR "aha152x: done() called outside of command\n");
+}
+
+static struct work_struct aha152x_tq;
+
+/*
+ * Run service completions on the card with interrupts enabled.
+ *
+ */
+static void run(struct work_struct *work)
+{
+ struct aha152x_hostdata *hd;
+
+ list_for_each_entry(hd, &aha152x_host_list, host_list) {
+ struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
+
+ is_complete(shost);
+ }
+}
+
+/*
+ * Interrupt handler
+ *
+ */
+static irqreturn_t intr(int irqno, void *dev_id)
+{
+ struct Scsi_Host *shpnt = dev_id;
+ unsigned long flags;
+ unsigned char rev, dmacntrl0;
+
+ /*
+ * Read a couple of registers that are known to not be all 1's. If
+ * we read all 1's (-1), that means that either:
+ *
+ * a. The host adapter chip has gone bad, and we cannot control it,
+ * OR
+ * b. The host adapter is a PCMCIA card that has been ejected
+ *
+ * In either case, we cannot do anything with the host adapter at
+ * this point in time. So just ignore the interrupt and return.
+ * In the latter case, the interrupt might actually be meant for
+ * someone else sharing this IRQ, and that driver will handle it.
+ */
+ rev = GETPORT(REV);
+ dmacntrl0 = GETPORT(DMACNTRL0);
+ if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
+ return IRQ_NONE;
+
+ if( TESTLO(DMASTAT, INTSTAT) )
+ return IRQ_NONE;
+
+ /* no more interrupts from the controller, while we're busy.
+ INTEN is restored by the BH handler */
+ CLRBITS(DMACNTRL0, INTEN);
+
+ DO_LOCK(flags);
+ if( HOSTDATA(shpnt)->service==0 ) {
+ HOSTDATA(shpnt)->service=1;
+
+ /* Poke the BH handler */
+ INIT_WORK(&aha152x_tq, run);
+ schedule_work(&aha152x_tq);
+ }
+ DO_UNLOCK(flags);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * busfree phase
+ * - handle completition/disconnection/error of current command
+ * - start selection for next command (if any)
+ */
+static void busfree_run(struct Scsi_Host *shpnt)
+{
+ unsigned long flags;
+#if defined(AHA152X_STAT)
+ int action=0;
+#endif
+
+ SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
+ SETPORT(SXFRCTL0, CH1);
+
+ SETPORT(SSTAT1, CLRBUSFREE);
+
+ if(CURRENT_SC) {
+#if defined(AHA152X_STAT)
+ action++;
+#endif
+ CURRENT_SC->SCp.phase &= ~syncneg;
+
+ if(CURRENT_SC->SCp.phase & completed) {
+ /* target sent COMMAND COMPLETE */
+ done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
+
+ } else if(CURRENT_SC->SCp.phase & aborted) {
+ done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
+
+ } else if(CURRENT_SC->SCp.phase & resetted) {
+ done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
+
+ } else if(CURRENT_SC->SCp.phase & disconnected) {
+ /* target sent DISCONNECT */
+#if defined(AHA152X_STAT)
+ HOSTDATA(shpnt)->disconnections++;
+#endif
+ append_SC(&DISCONNECTED_SC, CURRENT_SC);
+ CURRENT_SC->SCp.phase |= 1 << 16;
+ CURRENT_SC = NULL;
+
+ } else {
+ done(shpnt, DID_ERROR << 16);
+ }
+#if defined(AHA152X_STAT)
+ } else {
+ HOSTDATA(shpnt)->busfree_without_old_command++;
+#endif
+ }
+
+ DO_LOCK(flags);
+
+ if(DONE_SC) {
+#if defined(AHA152X_STAT)
+ action++;
+#endif
+
+ if(DONE_SC->SCp.phase & check_condition) {
+ struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
+ struct aha152x_scdata *sc = SCDATA(cmd);
+
+ scsi_eh_restore_cmnd(cmd, &sc->ses);
+
+ cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
+
+ HOSTDATA(shpnt)->commands--;
+ if (!HOSTDATA(shpnt)->commands)
+ SETPORT(PORTA, 0); /* turn led off */
+ } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
+#if defined(AHA152X_STAT)
+ HOSTDATA(shpnt)->busfree_with_check_condition++;
+#endif
+
+ if(!(DONE_SC->SCp.phase & not_issued)) {
+ struct aha152x_scdata *sc;
+ Scsi_Cmnd *ptr = DONE_SC;
+ DONE_SC=NULL;
+
+ sc = SCDATA(ptr);
+ /* It was allocated in aha152x_internal_queue? */
+ BUG_ON(!sc);
+ scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
+
+ DO_UNLOCK(flags);
+ aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
+ DO_LOCK(flags);
+ }
+ }
+
+ if(DONE_SC && DONE_SC->scsi_done) {
+ Scsi_Cmnd *ptr = DONE_SC;
+ DONE_SC=NULL;
+
+ /* turn led off, when no commands are in the driver */
+ HOSTDATA(shpnt)->commands--;
+ if (!HOSTDATA(shpnt)->commands)
+ SETPORT(PORTA, 0); /* turn led off */
+
+ if(ptr->scsi_done != reset_done) {
+ kfree(ptr->host_scribble);
+ ptr->host_scribble=NULL;
+ }
+
+ DO_UNLOCK(flags);
+ ptr->scsi_done(ptr);
+ DO_LOCK(flags);
+ }
+
+ DONE_SC=NULL;
+#if defined(AHA152X_STAT)
+ } else {
+ HOSTDATA(shpnt)->busfree_without_done_command++;
+#endif
+ }
+
+ if(ISSUE_SC)
+ CURRENT_SC = remove_first_SC(&ISSUE_SC);
+
+ DO_UNLOCK(flags);
+
+ if(CURRENT_SC) {
+#if defined(AHA152X_STAT)
+ action++;
+#endif
+ CURRENT_SC->SCp.phase |= selecting;
+
+ /* clear selection timeout */
+ SETPORT(SSTAT1, SELTO);
+
+ SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
+ SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
+ SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
+ } else {
+#if defined(AHA152X_STAT)
+ HOSTDATA(shpnt)->busfree_without_new_command++;
+#endif
+ SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
+ }
+
+#if defined(AHA152X_STAT)
+ if(!action)
+ HOSTDATA(shpnt)->busfree_without_any_action++;
+#endif
+}
+
+/*
+ * Selection done (OUT)
+ * - queue IDENTIFY message and SDTR to selected target for message out
+ * (ATN asserted automagically via ENAUTOATNO in busfree())
+ */
+static void seldo_run(struct Scsi_Host *shpnt)
+{
+ SETPORT(SCSISIG, 0);
+ SETPORT(SSTAT1, CLRBUSFREE);
+ SETPORT(SSTAT1, CLRPHASECHG);
+
+ CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
+
+ SETPORT(SCSISEQ, 0);
+
+ if (TESTLO(SSTAT0, SELDO)) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "aha152x: passing bus free condition\n");
+ done(shpnt, DID_NO_CONNECT << 16);
+ return;
+ }
+
+ SETPORT(SSTAT0, CLRSELDO);
+
+ ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
+
+ if (CURRENT_SC->SCp.phase & aborting) {
+ ADDMSGO(ABORT);
+ } else if (CURRENT_SC->SCp.phase & resetting) {
+ ADDMSGO(BUS_DEVICE_RESET);
+ } else if (SYNCNEG==0 && SYNCHRONOUS) {
+ CURRENT_SC->SCp.phase |= syncneg;
+ MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
+ SYNCNEG=1; /* negotiation in progress */
+ }
+
+ SETRATE(SYNCRATE);
+}
+
+/*
+ * Selection timeout
+ * - return command to mid-level with failure cause
+ *
+ */
+static void selto_run(struct Scsi_Host *shpnt)
+{
+ SETPORT(SCSISEQ, 0);
+ SETPORT(SSTAT1, CLRSELTIMO);
+
+ if (!CURRENT_SC)
+ return;
+
+ CURRENT_SC->SCp.phase &= ~selecting;
+
+ if (CURRENT_SC->SCp.phase & aborted)
+ done(shpnt, DID_ABORT << 16);
+ else if (TESTLO(SSTAT0, SELINGO))
+ done(shpnt, DID_BUS_BUSY << 16);
+ else
+ /* ARBITRATION won, but SELECTION failed */
+ done(shpnt, DID_NO_CONNECT << 16);
+}
+
+/*
+ * Selection in done
+ * - put current command back to issue queue
+ * (reconnection of a disconnected nexus instead
+ * of successful selection out)
+ *
+ */
+static void seldi_run(struct Scsi_Host *shpnt)
+{
+ int selid;
+ int target;
+ unsigned long flags;
+
+ SETPORT(SCSISIG, 0);
+ SETPORT(SSTAT0, CLRSELDI);
+ SETPORT(SSTAT1, CLRBUSFREE);
+ SETPORT(SSTAT1, CLRPHASECHG);
+
+ if(CURRENT_SC) {
+ if(!(CURRENT_SC->SCp.phase & not_issued))
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "command should not have been issued yet\n");
+
+ DO_LOCK(flags);
+ append_SC(&ISSUE_SC, CURRENT_SC);
+ DO_UNLOCK(flags);
+
+ CURRENT_SC = NULL;
+ }
+
+ if (!DISCONNECTED_SC)
+ return;
+
+ RECONN_TARGET=-1;
+
+ selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
+
+ if (selid==0) {
+ shost_printk(KERN_INFO, shpnt,
+ "target id unknown (%02x)\n", selid);
+ return;
+ }
+
+ for(target=7; !(selid & (1 << target)); target--)
+ ;
+
+ if(selid & ~(1 << target)) {
+ shost_printk(KERN_INFO, shpnt,
+ "multiple targets reconnected (%02x)\n", selid);
+ }
+
+
+ SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
+ SETPORT(SCSISEQ, 0);
+
+ SETRATE(HOSTDATA(shpnt)->syncrate[target]);
+
+ RECONN_TARGET=target;
+}
+
+/*
+ * message in phase
+ * - handle initial message after reconnection to identify
+ * reconnecting nexus
+ * - queue command on DISCONNECTED_SC on DISCONNECT message
+ * - set completed flag on COMMAND COMPLETE
+ * (other completition code moved to busfree_run)
+ * - handle response to SDTR
+ * - clear synchronous transfer agreements on BUS RESET
+ *
+ * FIXME: what about SAVE POINTERS, RESTORE POINTERS?
+ *
+ */
+static void msgi_run(struct Scsi_Host *shpnt)
+{
+ for(;;) {
+ int sstat1 = GETPORT(SSTAT1);
+
+ if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
+ return;
+
+ if (TESTLO(SSTAT0, SPIORDY))
+ return;
+
+ ADDMSGI(GETPORT(SCSIDAT));
+
+ if(!CURRENT_SC) {
+ if(LASTSTATE!=seldi) {
+ shost_printk(KERN_ERR, shpnt,
+ "message in w/o current command"
+ " not after reselection\n");
+ }
+
+ /*
+ * Handle reselection
+ */
+ if(!(MSGI(0) & IDENTIFY_BASE)) {
+ shost_printk(KERN_ERR, shpnt,
+ "target didn't identify after reselection\n");
+ continue;
+ }
+
+ CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
+
+ if (!CURRENT_SC) {
+ show_queues(shpnt);
+ shost_printk(KERN_ERR, shpnt,
+ "no disconnected command"
+ " for target %d/%d\n",
+ RECONN_TARGET, MSGI(0) & 0x3f);
+ continue;
+ }
+
+ CURRENT_SC->SCp.Message = MSGI(0);
+ CURRENT_SC->SCp.phase &= ~disconnected;
+
+ MSGILEN=0;
+
+ /* next message if any */
+ continue;
+ }
+
+ CURRENT_SC->SCp.Message = MSGI(0);
+
+ switch (MSGI(0)) {
+ case DISCONNECT:
+ if (!RECONNECT)
+ scmd_printk(KERN_WARNING, CURRENT_SC,
+ "target was not allowed to disconnect\n");
+
+ CURRENT_SC->SCp.phase |= disconnected;
+ break;
+
+ case COMMAND_COMPLETE:
+ CURRENT_SC->SCp.phase |= completed;
+ break;
+
+ case MESSAGE_REJECT:
+ if (SYNCNEG==1) {
+ scmd_printk(KERN_INFO, CURRENT_SC,
+ "Synchronous Data Transfer Request"
+ " was rejected\n");
+ SYNCNEG=2; /* negotiation completed */
+ } else
+ scmd_printk(KERN_INFO, CURRENT_SC,
+ "inbound message (MESSAGE REJECT)\n");
+ break;
+
+ case SAVE_POINTERS:
+ break;
+
+ case RESTORE_POINTERS:
+ break;
+
+ case EXTENDED_MESSAGE:
+ if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
+ /* not yet completed */
+ continue;
+ }
+
+ switch (MSGI(2)) {
+ case EXTENDED_SDTR:
+ {
+ long ticks;
+
+ if (MSGI(1) != 3) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "SDTR message length!=3\n");
+ break;
+ }
+
+ if (!HOSTDATA(shpnt)->synchronous)
+ break;
+
+ printk(INFO_LEAD, CMDINFO(CURRENT_SC));
+ spi_print_msg(&MSGI(0));
+ printk("\n");
+
+ ticks = (MSGI(3) * 4 + 49) / 50;
+
+ if (syncneg) {
+ /* negotiation in progress */
+ if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
+ ADDMSGO(MESSAGE_REJECT);
+ scmd_printk(KERN_INFO,
+ CURRENT_SC,
+ "received Synchronous Data Transfer Request invalid - rejected\n");
+ break;
+ }
+
+ SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
+ } else if (ticks <= 9 && MSGI(4) >= 1) {
+ ADDMSGO(EXTENDED_MESSAGE);
+ ADDMSGO(3);
+ ADDMSGO(EXTENDED_SDTR);
+ if (ticks < 4) {
+ ticks = 4;
+ ADDMSGO(50);
+ } else
+ ADDMSGO(MSGI(3));
+
+ if (MSGI(4) > 8)
+ MSGI(4) = 8;
+
+ ADDMSGO(MSGI(4));
+
+ SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
+ } else {
+ /* requested SDTR is too slow, do it asynchronously */
+ scmd_printk(KERN_INFO,
+ CURRENT_SC,
+ "Synchronous Data Transfer Request too slow - Rejecting\n");
+ ADDMSGO(MESSAGE_REJECT);
+ }
+
+ /* negotiation completed */
+ SYNCNEG=2;
+ SETRATE(SYNCRATE);
+ }
+ break;
+
+ case BUS_DEVICE_RESET:
+ {
+ int i;
+
+ for(i=0; i<8; i++) {
+ HOSTDATA(shpnt)->syncrate[i]=0;
+ HOSTDATA(shpnt)->syncneg[i]=0;
+ }
+
+ }
+ break;
+
+ case EXTENDED_MODIFY_DATA_POINTER:
+ case EXTENDED_EXTENDED_IDENTIFY:
+ case EXTENDED_WDTR:
+ default:
+ ADDMSGO(MESSAGE_REJECT);
+ break;
+ }
+ break;
+ }
+
+ MSGILEN=0;
+ }
+}
+
+static void msgi_end(struct Scsi_Host *shpnt)
+{
+ if(MSGILEN>0)
+ scmd_printk(KERN_WARNING, CURRENT_SC,
+ "target left before message completed (%d)\n",
+ MSGILEN);
+
+ if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE))
+ SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
+}
+
+/*
+ * message out phase
+ *
+ */
+static void msgo_init(struct Scsi_Host *shpnt)
+{
+ if(MSGOLEN==0) {
+ if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
+ ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
+ } else {
+ scmd_printk(KERN_INFO, CURRENT_SC,
+ "unexpected MESSAGE OUT phase; rejecting\n");
+ ADDMSGO(MESSAGE_REJECT);
+ }
+ }
+
+}
+
+/*
+ * message out phase
+ *
+ */
+static void msgo_run(struct Scsi_Host *shpnt)
+{
+ while(MSGO_I<MSGOLEN) {
+ if (TESTLO(SSTAT0, SPIORDY))
+ return;
+
+ if (MSGO_I==MSGOLEN-1) {
+ /* Leave MESSAGE OUT after transfer */
+ SETPORT(SSTAT1, CLRATNO);
+ }
+
+
+ if (MSGO(MSGO_I) & IDENTIFY_BASE)
+ CURRENT_SC->SCp.phase |= identified;
+
+ if (MSGO(MSGO_I)==ABORT)
+ CURRENT_SC->SCp.phase |= aborted;
+
+ if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
+ CURRENT_SC->SCp.phase |= resetted;
+
+ SETPORT(SCSIDAT, MSGO(MSGO_I++));
+ }
+}
+
+static void msgo_end(struct Scsi_Host *shpnt)
+{
+ if(MSGO_I<MSGOLEN) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "message sent incompletely (%d/%d)\n",
+ MSGO_I, MSGOLEN);
+ if(SYNCNEG==1) {
+ scmd_printk(KERN_INFO, CURRENT_SC,
+ "Synchronous Data Transfer Request was rejected\n");
+ SYNCNEG=2;
+ }
+ }
+
+ MSGO_I = 0;
+ MSGOLEN = 0;
+}
+
+/*
+ * command phase
+ *
+ */
+static void cmd_init(struct Scsi_Host *shpnt)
+{
+ if (CURRENT_SC->SCp.sent_command) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "command already sent\n");
+ done(shpnt, DID_ERROR << 16);
+ return;
+ }
+
+ CMD_I=0;
+}
+
+/*
+ * command phase
+ *
+ */
+static void cmd_run(struct Scsi_Host *shpnt)
+{
+ while(CMD_I<CURRENT_SC->cmd_len) {
+ if (TESTLO(SSTAT0, SPIORDY))
+ return;
+
+ SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
+ }
+}
+
+static void cmd_end(struct Scsi_Host *shpnt)
+{
+ if(CMD_I<CURRENT_SC->cmd_len)
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "command sent incompletely (%d/%d)\n",
+ CMD_I, CURRENT_SC->cmd_len);
+ else
+ CURRENT_SC->SCp.sent_command++;
+}
+
+/*
+ * status phase
+ *
+ */
+static void status_run(struct Scsi_Host *shpnt)
+{
+ if (TESTLO(SSTAT0, SPIORDY))
+ return;
+
+ CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
+
+}
+
+/*
+ * data in phase
+ *
+ */
+static void datai_init(struct Scsi_Host *shpnt)
+{
+ SETPORT(DMACNTRL0, RSTFIFO);
+ SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
+
+ SETPORT(SXFRCTL0, CH1|CLRSTCNT);
+ SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
+
+ SETPORT(SIMODE0, 0);
+ SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
+
+ DATA_LEN=0;
+}
+
+static void datai_run(struct Scsi_Host *shpnt)
+{
+ unsigned long the_time;
+ int fifodata, data_count;
+
+ /*
+ * loop while the phase persists or the fifos are not empty
+ *
+ */
+ while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
+ /* FIXME: maybe this should be done by setting up
+ * STCNT to trigger ENSWRAP interrupt, instead of
+ * polling for DFIFOFULL
+ */
+ the_time=jiffies + 100*HZ;
+ while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
+ barrier();
+
+ if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
+ scmd_printk(KERN_ERR, CURRENT_SC, "datai timeout\n");
+ break;
+ }
+
+ if(TESTHI(DMASTAT, DFIFOFULL)) {
+ fifodata = 128;
+ } else {
+ the_time=jiffies + 100*HZ;
+ while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
+ barrier();
+
+ if(TESTLO(SSTAT2, SEMPTY)) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "datai sempty timeout");
+ break;
+ }
+
+ fifodata = GETPORT(FIFOSTAT);
+ }
+
+ if(CURRENT_SC->SCp.this_residual>0) {
+ while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
+ data_count = fifodata > CURRENT_SC->SCp.this_residual ?
+ CURRENT_SC->SCp.this_residual :
+ fifodata;
+ fifodata -= data_count;
+
+ if (data_count & 1) {
+ SETPORT(DMACNTRL0, ENDMA|_8BIT);
+ *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
+ CURRENT_SC->SCp.this_residual--;
+ DATA_LEN++;
+ SETPORT(DMACNTRL0, ENDMA);
+ }
+
+ if (data_count > 1) {
+ data_count >>= 1;
+ insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
+ CURRENT_SC->SCp.ptr += 2 * data_count;
+ CURRENT_SC->SCp.this_residual -= 2 * data_count;
+ DATA_LEN += 2 * data_count;
+ }
+
+ if (CURRENT_SC->SCp.this_residual == 0 &&
+ CURRENT_SC->SCp.buffers_residual > 0) {
+ /* advance to next buffer */
+ CURRENT_SC->SCp.buffers_residual--;
+ CURRENT_SC->SCp.buffer++;
+ CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
+ CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
+ }
+ }
+ } else if (fifodata > 0) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "no buffers left for %d(%d) bytes"
+ " (data overrun!?)\n",
+ fifodata, GETPORT(FIFOSTAT));
+ SETPORT(DMACNTRL0, ENDMA|_8BIT);
+ while(fifodata>0) {
+ int data;
+ data=GETPORT(DATAPORT);
+ fifodata--;
+ DATA_LEN++;
+ }
+ SETPORT(DMACNTRL0, ENDMA|_8BIT);
+ }
+ }
+
+ if(TESTLO(DMASTAT, INTSTAT) ||
+ TESTLO(DMASTAT, DFIFOEMP) ||
+ TESTLO(SSTAT2, SEMPTY) ||
+ GETPORT(FIFOSTAT)>0) {
+ /*
+ * something went wrong, if there's something left in the fifos
+ * or the phase didn't change
+ */
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "fifos should be empty and phase should have changed\n");
+ }
+
+ if(DATA_LEN!=GETSTCNT()) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "manual transfer count differs from automatic "
+ "(count=%d;stcnt=%d;diff=%d;fifostat=%d)",
+ DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN,
+ GETPORT(FIFOSTAT));
+ mdelay(10000);
+ }
+}
+
+static void datai_end(struct Scsi_Host *shpnt)
+{
+ CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
+
+ SETPORT(SXFRCTL0, CH1|CLRSTCNT);
+ SETPORT(DMACNTRL0, 0);
+}
+
+/*
+ * data out phase
+ *
+ */
+static void datao_init(struct Scsi_Host *shpnt)
+{
+ SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
+ SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
+
+ SETPORT(SXFRCTL0, CH1|CLRSTCNT);
+ SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
+
+ SETPORT(SIMODE0, 0);
+ SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
+
+ DATA_LEN = scsi_get_resid(CURRENT_SC);
+}
+
+static void datao_run(struct Scsi_Host *shpnt)
+{
+ unsigned long the_time;
+ int data_count;
+
+ /* until phase changes or all data sent */
+ while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
+ data_count = 128;
+ if(data_count > CURRENT_SC->SCp.this_residual)
+ data_count=CURRENT_SC->SCp.this_residual;
+
+ if(TESTLO(DMASTAT, DFIFOEMP)) {
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "datao fifo not empty (%d)",
+ GETPORT(FIFOSTAT));
+ break;
+ }
+
+ if(data_count & 1) {
+ SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
+ SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
+ CURRENT_SC->SCp.this_residual--;
+ CMD_INC_RESID(CURRENT_SC, -1);
+ SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
+ }
+
+ if(data_count > 1) {
+ data_count >>= 1;
+ outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
+ CURRENT_SC->SCp.ptr += 2 * data_count;
+ CURRENT_SC->SCp.this_residual -= 2 * data_count;
+ CMD_INC_RESID(CURRENT_SC, -2 * data_count);
+ }
+
+ if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
+ /* advance to next buffer */
+ CURRENT_SC->SCp.buffers_residual--;
+ CURRENT_SC->SCp.buffer++;
+ CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
+ CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
+ }
+
+ the_time=jiffies + 100*HZ;
+ while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
+ barrier();
+
+ if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
+ scmd_printk(KERN_ERR, CURRENT_SC, "dataout timeout\n");
+ break;
+ }
+ }
+}
+
+static void datao_end(struct Scsi_Host *shpnt)
+{
+ if(TESTLO(DMASTAT, DFIFOEMP)) {
+ int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
+ GETSTCNT();
+
+ CMD_INC_RESID(CURRENT_SC, data_count);
+
+ data_count -= CURRENT_SC->SCp.ptr -
+ SG_ADDRESS(CURRENT_SC->SCp.buffer);
+ while(data_count>0) {
+ CURRENT_SC->SCp.buffer--;
+ CURRENT_SC->SCp.buffers_residual++;
+ data_count -= CURRENT_SC->SCp.buffer->length;
+ }
+ CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
+ data_count;
+ CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
+ data_count;
+ }
+
+ SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
+ SETPORT(SXFRCTL0, CH1);
+
+ SETPORT(DMACNTRL0, 0);
+}
+
+/*
+ * figure out what state we're in
+ *
+ */
+static int update_state(struct Scsi_Host *shpnt)
+{
+ int dataphase=0;
+ unsigned int stat0 = GETPORT(SSTAT0);
+ unsigned int stat1 = GETPORT(SSTAT1);
+
+ PREVSTATE = STATE;
+ STATE=unknown;
+
+ if(stat1 & SCSIRSTI) {
+ STATE=rsti;
+ SETPORT(SCSISEQ,0);
+ SETPORT(SSTAT1,SCSIRSTI);
+ } else if (stat0 & SELDI && PREVSTATE == busfree) {
+ STATE=seldi;
+ } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
+ STATE=seldo;
+ } else if(stat1 & SELTO) {
+ STATE=selto;
+ } else if(stat1 & BUSFREE) {
+ STATE=busfree;
+ SETPORT(SSTAT1,BUSFREE);
+ } else if(stat1 & SCSIPERR) {
+ STATE=parerr;
+ SETPORT(SSTAT1,SCSIPERR);
+ } else if(stat1 & REQINIT) {
+ switch(GETPORT(SCSISIG) & P_MASK) {
+ case P_MSGI: STATE=msgi; break;
+ case P_MSGO: STATE=msgo; break;
+ case P_DATAO: STATE=datao; break;
+ case P_DATAI: STATE=datai; break;
+ case P_STATUS: STATE=status; break;
+ case P_CMD: STATE=cmd; break;
+ }
+ dataphase=1;
+ }
+
+ if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
+ scmd_printk(KERN_INFO, CURRENT_SC, "reselection missed?");
+ }
+
+ if(STATE!=PREVSTATE) {
+ LASTSTATE=PREVSTATE;
+ }
+
+ return dataphase;
+}
+
+/*
+ * handle parity error
+ *
+ * FIXME: in which phase?
+ *
+ */
+static void parerr_run(struct Scsi_Host *shpnt)
+{
+ scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n");
+ done(shpnt, DID_PARITY << 16);
+}
+
+/*
+ * handle reset in
+ *
+ */
+static void rsti_run(struct Scsi_Host *shpnt)
+{
+ Scsi_Cmnd *ptr;
+
+ shost_printk(KERN_NOTICE, shpnt, "scsi reset in\n");
+
+ ptr=DISCONNECTED_SC;
+ while(ptr) {
+ Scsi_Cmnd *next = SCNEXT(ptr);
+
+ if (!ptr->device->soft_reset) {
+ remove_SC(&DISCONNECTED_SC, ptr);
+
+ kfree(ptr->host_scribble);
+ ptr->host_scribble=NULL;
+
+ ptr->result = DID_RESET << 16;
+ ptr->scsi_done(ptr);
+ }
+
+ ptr = next;
+ }
+
+ if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
+ done(shpnt, DID_RESET << 16 );
+}
+
+
+/*
+ * bottom-half handler
+ *
+ */
+static void is_complete(struct Scsi_Host *shpnt)
+{
+ int dataphase;
+ unsigned long flags;
+ int pending;
+
+ if(!shpnt)
+ return;
+
+ DO_LOCK(flags);
+
+ if( HOSTDATA(shpnt)->service==0 ) {
+ DO_UNLOCK(flags);
+ return;
+ }
+
+ HOSTDATA(shpnt)->service = 0;
+
+ if(HOSTDATA(shpnt)->in_intr) {
+ DO_UNLOCK(flags);
+ /* aha152x_error never returns.. */
+ aha152x_error(shpnt, "bottom-half already running!?");
+ }
+ HOSTDATA(shpnt)->in_intr++;
+
+ /*
+ * loop while there are interrupt conditions pending
+ *
+ */
+ do {
+ unsigned long start = jiffies;
+ DO_UNLOCK(flags);
+
+ dataphase=update_state(shpnt);
+
+ /*
+ * end previous state
+ *
+ */
+ if(PREVSTATE!=STATE && states[PREVSTATE].end)
+ states[PREVSTATE].end(shpnt);
+
+ /*
+ * disable SPIO mode if previous phase used it
+ * and this one doesn't
+ *
+ */
+ if(states[PREVSTATE].spio && !states[STATE].spio) {
+ SETPORT(SXFRCTL0, CH1);
+ SETPORT(DMACNTRL0, 0);
+ if(CURRENT_SC)
+ CURRENT_SC->SCp.phase &= ~spiordy;
+ }
+
+ /*
+ * accept current dataphase phase
+ *
+ */
+ if(dataphase) {
+ SETPORT(SSTAT0, REQINIT);
+ SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
+ SETPORT(SSTAT1, PHASECHG);
+ }
+
+ /*
+ * enable SPIO mode if previous didn't use it
+ * and this one does
+ *
+ */
+ if(!states[PREVSTATE].spio && states[STATE].spio) {
+ SETPORT(DMACNTRL0, 0);
+ SETPORT(SXFRCTL0, CH1|SPIOEN);
+ if(CURRENT_SC)
+ CURRENT_SC->SCp.phase |= spiordy;
+ }
+
+ /*
+ * initialize for new state
+ *
+ */
+ if(PREVSTATE!=STATE && states[STATE].init)
+ states[STATE].init(shpnt);
+
+ /*
+ * handle current state
+ *
+ */
+ if(states[STATE].run)
+ states[STATE].run(shpnt);
+ else
+ scmd_printk(KERN_ERR, CURRENT_SC,
+ "unexpected state (%x)\n", STATE);
+
+ /*
+ * setup controller to interrupt on
+ * the next expected condition and
+ * loop if it's already there
+ *
+ */
+ DO_LOCK(flags);
+ pending=setup_expected_interrupts(shpnt);
+#if defined(AHA152X_STAT)
+ HOSTDATA(shpnt)->count[STATE]++;
+ if(PREVSTATE!=STATE)
+ HOSTDATA(shpnt)->count_trans[STATE]++;
+ HOSTDATA(shpnt)->time[STATE] += jiffies-start;
+#endif
+
+ } while(pending);
+
+ /*
+ * enable interrupts and leave bottom-half
+ *
+ */
+ HOSTDATA(shpnt)->in_intr--;
+ SETBITS(DMACNTRL0, INTEN);
+ DO_UNLOCK(flags);
+}
+
+
+/*
+ * Dump the current driver status and panic
+ */
+static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
+{
+ shost_printk(KERN_EMERG, shpnt, "%s\n", msg);
+ show_queues(shpnt);
+ panic("aha152x panic\n");
+}
+
+/*
+ * display enabled interrupts
+ */
+static void disp_enintr(struct Scsi_Host *shpnt)
+{
+ int s0, s1;
+
+ s0 = GETPORT(SIMODE0);
+ s1 = GETPORT(SIMODE1);
+
+ shost_printk(KERN_DEBUG, shpnt,
+ "enabled interrupts (%s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
+ (s0 & ENSELDO) ? "ENSELDO " : "",
+ (s0 & ENSELDI) ? "ENSELDI " : "",
+ (s0 & ENSELINGO) ? "ENSELINGO " : "",
+ (s0 & ENSWRAP) ? "ENSWRAP " : "",
+ (s0 & ENSDONE) ? "ENSDONE " : "",
+ (s0 & ENSPIORDY) ? "ENSPIORDY " : "",
+ (s0 & ENDMADONE) ? "ENDMADONE " : "",
+ (s1 & ENSELTIMO) ? "ENSELTIMO " : "",
+ (s1 & ENATNTARG) ? "ENATNTARG " : "",
+ (s1 & ENPHASEMIS) ? "ENPHASEMIS " : "",
+ (s1 & ENBUSFREE) ? "ENBUSFREE " : "",
+ (s1 & ENSCSIPERR) ? "ENSCSIPERR " : "",
+ (s1 & ENPHASECHG) ? "ENPHASECHG " : "",
+ (s1 & ENREQINIT) ? "ENREQINIT " : "");
+}
+
+/*
+ * Show the command data of a command
+ */
+static void show_command(Scsi_Cmnd *ptr)
+{
+ scsi_print_command(ptr);
+ scmd_printk(KERN_DEBUG, ptr,
+ "request_bufflen=%d; resid=%d; "
+ "phase |%s%s%s%s%s%s%s%s%s; next=0x%p",
+ scsi_bufflen(ptr), scsi_get_resid(ptr),
+ (ptr->SCp.phase & not_issued) ? "not issued|" : "",
+ (ptr->SCp.phase & selecting) ? "selecting|" : "",
+ (ptr->SCp.phase & identified) ? "identified|" : "",
+ (ptr->SCp.phase & disconnected) ? "disconnected|" : "",
+ (ptr->SCp.phase & completed) ? "completed|" : "",
+ (ptr->SCp.phase & spiordy) ? "spiordy|" : "",
+ (ptr->SCp.phase & syncneg) ? "syncneg|" : "",
+ (ptr->SCp.phase & aborted) ? "aborted|" : "",
+ (ptr->SCp.phase & resetted) ? "resetted|" : "",
+ (SCDATA(ptr)) ? SCNEXT(ptr) : NULL);
+}
+
+/*
+ * Dump the queued data
+ */
+static void show_queues(struct Scsi_Host *shpnt)
+{
+ Scsi_Cmnd *ptr;
+ unsigned long flags;
+
+ DO_LOCK(flags);
+ printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
+ for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
+ show_command(ptr);
+ DO_UNLOCK(flags);
+
+ printk(KERN_DEBUG "current_SC:\n");
+ if (CURRENT_SC)
+ show_command(CURRENT_SC);
+ else
+ printk(KERN_DEBUG "none\n");
+
+ printk(KERN_DEBUG "disconnected_SC:\n");
+ for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
+ show_command(ptr);
+
+ disp_enintr(shpnt);
+}
+
+static void get_command(struct seq_file *m, Scsi_Cmnd * ptr)
+{
+ int i;
+
+ seq_printf(m, "%p: target=%d; lun=%d; cmnd=( ",
+ ptr, ptr->device->id, (u8)ptr->device->lun);
+
+ for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
+ seq_printf(m, "0x%02x ", ptr->cmnd[i]);
+
+ seq_printf(m, "); resid=%d; residual=%d; buffers=%d; phase |",
+ scsi_get_resid(ptr), ptr->SCp.this_residual,
+ ptr->SCp.buffers_residual);
+
+ if (ptr->SCp.phase & not_issued)
+ seq_puts(m, "not issued|");
+ if (ptr->SCp.phase & selecting)
+ seq_puts(m, "selecting|");
+ if (ptr->SCp.phase & disconnected)
+ seq_puts(m, "disconnected|");
+ if (ptr->SCp.phase & aborted)
+ seq_puts(m, "aborted|");
+ if (ptr->SCp.phase & identified)
+ seq_puts(m, "identified|");
+ if (ptr->SCp.phase & completed)
+ seq_puts(m, "completed|");
+ if (ptr->SCp.phase & spiordy)
+ seq_puts(m, "spiordy|");
+ if (ptr->SCp.phase & syncneg)
+ seq_puts(m, "syncneg|");
+ seq_printf(m, "; next=0x%p\n", SCNEXT(ptr));
+}
+
+static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt)
+{
+ int s;
+
+ seq_printf(m, "\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
+
+ s = GETPORT(SCSISEQ);
+ seq_puts(m, "SCSISEQ( ");
+ if (s & TEMODEO)
+ seq_puts(m, "TARGET MODE ");
+ if (s & ENSELO)
+ seq_puts(m, "SELO ");
+ if (s & ENSELI)
+ seq_puts(m, "SELI ");
+ if (s & ENRESELI)
+ seq_puts(m, "RESELI ");
+ if (s & ENAUTOATNO)
+ seq_puts(m, "AUTOATNO ");
+ if (s & ENAUTOATNI)
+ seq_puts(m, "AUTOATNI ");
+ if (s & ENAUTOATNP)
+ seq_puts(m, "AUTOATNP ");
+ if (s & SCSIRSTO)
+ seq_puts(m, "SCSIRSTO ");
+ seq_puts(m, ");");
+
+ seq_puts(m, " SCSISIG(");
+ s = GETPORT(SCSISIG);
+ switch (s & P_MASK) {
+ case P_DATAO:
+ seq_puts(m, "DATA OUT");
+ break;
+ case P_DATAI:
+ seq_puts(m, "DATA IN");
+ break;
+ case P_CMD:
+ seq_puts(m, "COMMAND");
+ break;
+ case P_STATUS:
+ seq_puts(m, "STATUS");
+ break;
+ case P_MSGO:
+ seq_puts(m, "MESSAGE OUT");
+ break;
+ case P_MSGI:
+ seq_puts(m, "MESSAGE IN");
+ break;
+ default:
+ seq_puts(m, "*invalid*");
+ break;
+ }
+
+ seq_puts(m, "); ");
+
+ seq_printf(m, "INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
+
+ seq_puts(m, "SSTAT( ");
+ s = GETPORT(SSTAT0);
+ if (s & TARGET)
+ seq_puts(m, "TARGET ");
+ if (s & SELDO)
+ seq_puts(m, "SELDO ");
+ if (s & SELDI)
+ seq_puts(m, "SELDI ");
+ if (s & SELINGO)
+ seq_puts(m, "SELINGO ");
+ if (s & SWRAP)
+ seq_puts(m, "SWRAP ");
+ if (s & SDONE)
+ seq_puts(m, "SDONE ");
+ if (s & SPIORDY)
+ seq_puts(m, "SPIORDY ");
+ if (s & DMADONE)
+ seq_puts(m, "DMADONE ");
+
+ s = GETPORT(SSTAT1);
+ if (s & SELTO)
+ seq_puts(m, "SELTO ");
+ if (s & ATNTARG)
+ seq_puts(m, "ATNTARG ");
+ if (s & SCSIRSTI)
+ seq_puts(m, "SCSIRSTI ");
+ if (s & PHASEMIS)
+ seq_puts(m, "PHASEMIS ");
+ if (s & BUSFREE)
+ seq_puts(m, "BUSFREE ");
+ if (s & SCSIPERR)
+ seq_puts(m, "SCSIPERR ");
+ if (s & PHASECHG)
+ seq_puts(m, "PHASECHG ");
+ if (s & REQINIT)
+ seq_puts(m, "REQINIT ");
+ seq_puts(m, "); ");
+
+
+ seq_puts(m, "SSTAT( ");
+
+ s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
+
+ if (s & TARGET)
+ seq_puts(m, "TARGET ");
+ if (s & SELDO)
+ seq_puts(m, "SELDO ");
+ if (s & SELDI)
+ seq_puts(m, "SELDI ");
+ if (s & SELINGO)
+ seq_puts(m, "SELINGO ");
+ if (s & SWRAP)
+ seq_puts(m, "SWRAP ");
+ if (s & SDONE)
+ seq_puts(m, "SDONE ");
+ if (s & SPIORDY)
+ seq_puts(m, "SPIORDY ");
+ if (s & DMADONE)
+ seq_puts(m, "DMADONE ");
+
+ s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
+
+ if (s & SELTO)
+ seq_puts(m, "SELTO ");
+ if (s & ATNTARG)
+ seq_puts(m, "ATNTARG ");
+ if (s & SCSIRSTI)
+ seq_puts(m, "SCSIRSTI ");
+ if (s & PHASEMIS)
+ seq_puts(m, "PHASEMIS ");
+ if (s & BUSFREE)
+ seq_puts(m, "BUSFREE ");
+ if (s & SCSIPERR)
+ seq_puts(m, "SCSIPERR ");
+ if (s & PHASECHG)
+ seq_puts(m, "PHASECHG ");
+ if (s & REQINIT)
+ seq_puts(m, "REQINIT ");
+ seq_puts(m, "); ");
+
+ seq_puts(m, "SXFRCTL0( ");
+
+ s = GETPORT(SXFRCTL0);
+ if (s & SCSIEN)
+ seq_puts(m, "SCSIEN ");
+ if (s & DMAEN)
+ seq_puts(m, "DMAEN ");
+ if (s & CH1)
+ seq_puts(m, "CH1 ");
+ if (s & CLRSTCNT)
+ seq_puts(m, "CLRSTCNT ");
+ if (s & SPIOEN)
+ seq_puts(m, "SPIOEN ");
+ if (s & CLRCH1)
+ seq_puts(m, "CLRCH1 ");
+ seq_puts(m, "); ");
+
+ seq_puts(m, "SIGNAL( ");
+
+ s = GETPORT(SCSISIG);
+ if (s & SIG_ATNI)
+ seq_puts(m, "ATNI ");
+ if (s & SIG_SELI)
+ seq_puts(m, "SELI ");
+ if (s & SIG_BSYI)
+ seq_puts(m, "BSYI ");
+ if (s & SIG_REQI)
+ seq_puts(m, "REQI ");
+ if (s & SIG_ACKI)
+ seq_puts(m, "ACKI ");
+ seq_puts(m, "); ");
+
+ seq_printf(m, "SELID(%02x), ", GETPORT(SELID));
+
+ seq_printf(m, "STCNT(%d), ", GETSTCNT());
+
+ seq_puts(m, "SSTAT2( ");
+
+ s = GETPORT(SSTAT2);
+ if (s & SOFFSET)
+ seq_puts(m, "SOFFSET ");
+ if (s & SEMPTY)
+ seq_puts(m, "SEMPTY ");
+ if (s & SFULL)
+ seq_puts(m, "SFULL ");
+ seq_printf(m, "); SFCNT (%d); ", s & (SFULL | SFCNT));
+
+ s = GETPORT(SSTAT3);
+ seq_printf(m, "SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
+
+ seq_puts(m, "SSTAT4( ");
+ s = GETPORT(SSTAT4);
+ if (s & SYNCERR)
+ seq_puts(m, "SYNCERR ");
+ if (s & FWERR)
+ seq_puts(m, "FWERR ");
+ if (s & FRERR)
+ seq_puts(m, "FRERR ");
+ seq_puts(m, "); ");
+
+ seq_puts(m, "DMACNTRL0( ");
+ s = GETPORT(DMACNTRL0);
+ seq_printf(m, "%s ", s & _8BIT ? "8BIT" : "16BIT");
+ seq_printf(m, "%s ", s & DMA ? "DMA" : "PIO");
+ seq_printf(m, "%s ", s & WRITE_READ ? "WRITE" : "READ");
+ if (s & ENDMA)
+ seq_puts(m, "ENDMA ");
+ if (s & INTEN)
+ seq_puts(m, "INTEN ");
+ if (s & RSTFIFO)
+ seq_puts(m, "RSTFIFO ");
+ if (s & SWINT)
+ seq_puts(m, "SWINT ");
+ seq_puts(m, "); ");
+
+ seq_puts(m, "DMASTAT( ");
+ s = GETPORT(DMASTAT);
+ if (s & ATDONE)
+ seq_puts(m, "ATDONE ");
+ if (s & WORDRDY)
+ seq_puts(m, "WORDRDY ");
+ if (s & DFIFOFULL)
+ seq_puts(m, "DFIFOFULL ");
+ if (s & DFIFOEMP)
+ seq_puts(m, "DFIFOEMP ");
+ seq_puts(m, ")\n");
+
+ seq_puts(m, "enabled interrupts( ");
+
+ s = GETPORT(SIMODE0);
+ if (s & ENSELDO)
+ seq_puts(m, "ENSELDO ");
+ if (s & ENSELDI)
+ seq_puts(m, "ENSELDI ");
+ if (s & ENSELINGO)
+ seq_puts(m, "ENSELINGO ");
+ if (s & ENSWRAP)
+ seq_puts(m, "ENSWRAP ");
+ if (s & ENSDONE)
+ seq_puts(m, "ENSDONE ");
+ if (s & ENSPIORDY)
+ seq_puts(m, "ENSPIORDY ");
+ if (s & ENDMADONE)
+ seq_puts(m, "ENDMADONE ");
+
+ s = GETPORT(SIMODE1);
+ if (s & ENSELTIMO)
+ seq_puts(m, "ENSELTIMO ");
+ if (s & ENATNTARG)
+ seq_puts(m, "ENATNTARG ");
+ if (s & ENPHASEMIS)
+ seq_puts(m, "ENPHASEMIS ");
+ if (s & ENBUSFREE)
+ seq_puts(m, "ENBUSFREE ");
+ if (s & ENSCSIPERR)
+ seq_puts(m, "ENSCSIPERR ");
+ if (s & ENPHASECHG)
+ seq_puts(m, "ENPHASECHG ");
+ if (s & ENREQINIT)
+ seq_puts(m, "ENREQINIT ");
+ seq_puts(m, ")\n");
+}
+
+static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length)
+{
+ if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
+ return -EINVAL;
+
+#if defined(AHA152X_STAT)
+ if(length>13 && strncmp("reset", buffer+8, 5)==0) {
+ int i;
+
+ HOSTDATA(shpnt)->total_commands=0;
+ HOSTDATA(shpnt)->disconnections=0;
+ HOSTDATA(shpnt)->busfree_without_any_action=0;
+ HOSTDATA(shpnt)->busfree_without_old_command=0;
+ HOSTDATA(shpnt)->busfree_without_new_command=0;
+ HOSTDATA(shpnt)->busfree_without_done_command=0;
+ HOSTDATA(shpnt)->busfree_with_check_condition=0;
+ for (i = idle; i<maxstate; i++) {
+ HOSTDATA(shpnt)->count[i]=0;
+ HOSTDATA(shpnt)->count_trans[i]=0;
+ HOSTDATA(shpnt)->time[i]=0;
+ }
+
+ shost_printk(KERN_INFO, shpnt, "aha152x: stats reset.\n");
+
+ } else
+#endif
+ {
+ return -EINVAL;
+ }
+
+
+ return length;
+}
+
+static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
+{
+ int i;
+ Scsi_Cmnd *ptr;
+ unsigned long flags;
+
+ seq_puts(m, AHA152X_REVID "\n");
+
+ seq_printf(m, "ioports 0x%04lx to 0x%04lx\n",
+ shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
+ seq_printf(m, "interrupt 0x%02x\n", shpnt->irq);
+ seq_printf(m, "disconnection/reconnection %s\n",
+ RECONNECT ? "enabled" : "disabled");
+ seq_printf(m, "parity checking %s\n",
+ PARITY ? "enabled" : "disabled");
+ seq_printf(m, "synchronous transfers %s\n",
+ SYNCHRONOUS ? "enabled" : "disabled");
+ seq_printf(m, "%d commands currently queued\n", HOSTDATA(shpnt)->commands);
+
+ if(SYNCHRONOUS) {
+ seq_puts(m, "synchronously operating targets (tick=50 ns):\n");
+ for (i = 0; i < 8; i++)
+ if (HOSTDATA(shpnt)->syncrate[i] & 0x7f)
+ seq_printf(m, "target %d: period %dT/%dns; req/ack offset %d\n",
+ i,
+ (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2),
+ (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
+ HOSTDATA(shpnt)->syncrate[i] & 0x0f);
+ }
+ seq_puts(m, "\nqueue status:\n");
+ DO_LOCK(flags);
+ if (ISSUE_SC) {
+ seq_puts(m, "not yet issued commands:\n");
+ for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
+ get_command(m, ptr);
+ } else
+ seq_puts(m, "no not yet issued commands\n");
+ DO_UNLOCK(flags);
+
+ if (CURRENT_SC) {
+ seq_puts(m, "current command:\n");
+ get_command(m, CURRENT_SC);
+ } else
+ seq_puts(m, "no current command\n");
+
+ if (DISCONNECTED_SC) {
+ seq_puts(m, "disconnected commands:\n");
+ for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
+ get_command(m, ptr);
+ } else
+ seq_puts(m, "no disconnected commands\n");
+
+ get_ports(m, shpnt);
+
+#if defined(AHA152X_STAT)
+ seq_printf(m, "statistics:\n"
+ "total commands: %d\n"
+ "disconnections: %d\n"
+ "busfree with check condition: %d\n"
+ "busfree without old command: %d\n"
+ "busfree without new command: %d\n"
+ "busfree without done command: %d\n"
+ "busfree without any action: %d\n"
+ "state "
+ "transitions "
+ "count "
+ "time\n",
+ HOSTDATA(shpnt)->total_commands,
+ HOSTDATA(shpnt)->disconnections,
+ HOSTDATA(shpnt)->busfree_with_check_condition,
+ HOSTDATA(shpnt)->busfree_without_old_command,
+ HOSTDATA(shpnt)->busfree_without_new_command,
+ HOSTDATA(shpnt)->busfree_without_done_command,
+ HOSTDATA(shpnt)->busfree_without_any_action);
+ for(i=0; i<maxstate; i++) {
+ seq_printf(m, "%-10s %-12d %-12d %-12ld\n",
+ states[i].name,
+ HOSTDATA(shpnt)->count_trans[i],
+ HOSTDATA(shpnt)->count[i],
+ HOSTDATA(shpnt)->time[i]);
+ }
+#endif
+ return 0;
+}
+
+static int aha152x_adjust_queue(struct scsi_device *device)
+{
+ blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
+ return 0;
+}
+
+static struct scsi_host_template aha152x_driver_template = {
+ .module = THIS_MODULE,
+ .name = AHA152X_REVID,
+ .proc_name = "aha152x",
+ .show_info = aha152x_show_info,
+ .write_info = aha152x_set_info,
+ .queuecommand = aha152x_queue,
+ .eh_abort_handler = aha152x_abort,
+ .eh_device_reset_handler = aha152x_device_reset,
+ .eh_bus_reset_handler = aha152x_bus_reset,
+ .eh_host_reset_handler = aha152x_host_reset,
+ .bios_param = aha152x_biosparam,
+ .can_queue = 1,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = 1,
+ .use_clustering = DISABLE_CLUSTERING,
+ .slave_alloc = aha152x_adjust_queue,
+};
+
+#if !defined(PCMCIA)
+static int setup_count;
+static struct aha152x_setup setup[2];
+
+/* possible i/o addresses for the AIC-6260; default first */
+static unsigned short ports[] = { 0x340, 0x140 };
+
+#if !defined(SKIP_BIOSTEST)
+/* possible locations for the Adaptec BIOS; defaults first */
+static unsigned int addresses[] =
+{
+ 0xdc000, /* default first */
+ 0xc8000,
+ 0xcc000,
+ 0xd0000,
+ 0xd4000,
+ 0xd8000,
+ 0xe0000,
+ 0xeb800, /* VTech Platinum SMP */
+ 0xf0000,
+};
+
+/* signatures for various AIC-6[23]60 based controllers.
+ The point in detecting signatures is to avoid useless and maybe
+ harmful probes on ports. I'm not sure that all listed boards pass
+ auto-configuration. For those which fail the BIOS signature is
+ obsolete, because user intervention to supply the configuration is
+ needed anyway. May be an information whether or not the BIOS supports
+ extended translation could be also useful here. */
+static struct signature {
+ unsigned char *signature;
+ int sig_offset;
+ int sig_length;
+} signatures[] =
+{
+ { "Adaptec AHA-1520 BIOS", 0x102e, 21 },
+ /* Adaptec 152x */
+ { "Adaptec AHA-1520B", 0x000b, 17 },
+ /* Adaptec 152x rev B */
+ { "Adaptec AHA-1520B", 0x0026, 17 },
+ /* Iomega Jaz Jet ISA (AIC6370Q) */
+ { "Adaptec ASW-B626 BIOS", 0x1029, 21 },
+ /* on-board controller */
+ { "Adaptec BIOS: ASW-B626", 0x000f, 22 },
+ /* on-board controller */
+ { "Adaptec ASW-B626 S2", 0x2e6c, 19 },
+ /* on-board controller */
+ { "Adaptec BIOS:AIC-6360", 0x000c, 21 },
+ /* on-board controller */
+ { "ScsiPro SP-360 BIOS", 0x2873, 19 },
+ /* ScsiPro-Controller */
+ { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 },
+ /* Gigabyte Local-Bus-SCSI */
+ { "Adaptec BIOS:AVA-282X", 0x000c, 21 },
+ /* Adaptec 282x */
+ { "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
+ /* IBM Thinkpad Dock II */
+ { "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
+ /* IBM Thinkpad Dock II SCSI */
+ { "DTC3520A Host Adapter BIOS", 0x318a, 26 },
+ /* DTC 3520A ISA SCSI */
+};
+#endif /* !SKIP_BIOSTEST */
+
+/*
+ * Test, if port_base is valid.
+ *
+ */
+static int aha152x_porttest(int io_port)
+{
+ int i;
+
+ SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
+ for (i = 0; i < 16; i++)
+ SETPORT(io_port + O_STACK, i);
+
+ SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
+ for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++)
+ ;
+
+ return (i == 16);
+}
+
+static int tc1550_porttest(int io_port)
+{
+ int i;
+
+ SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
+ for (i = 0; i < 16; i++)
+ SETPORT(io_port + O_STACK, i);
+
+ SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
+ for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
+ ;
+
+ return (i == 16);
+}
+
+
+static int checksetup(struct aha152x_setup *setup)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
+ ;
+
+ if (i == ARRAY_SIZE(ports))
+ return 0;
+
+ if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
+ printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
+ return 0;
+ }
+
+ if( aha152x_porttest(setup->io_port) ) {
+ setup->tc1550=0;
+ } else if( tc1550_porttest(setup->io_port) ) {
+ setup->tc1550=1;
+ } else {
+ release_region(setup->io_port, IO_RANGE);
+ return 0;
+ }
+
+ release_region(setup->io_port, IO_RANGE);
+
+ if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX))
+ return 0;
+
+ if ((setup->scsiid < 0) || (setup->scsiid > 7))
+ return 0;
+
+ if ((setup->reconnect < 0) || (setup->reconnect > 1))
+ return 0;
+
+ if ((setup->parity < 0) || (setup->parity > 1))
+ return 0;
+
+ if ((setup->synchronous < 0) || (setup->synchronous > 1))
+ return 0;
+
+ if ((setup->ext_trans < 0) || (setup->ext_trans > 1))
+ return 0;
+
+
+ return 1;
+}
+
+
+static int __init aha152x_init(void)
+{
+ int i, j, ok;
+#if defined(AUTOCONF)
+ aha152x_config conf;
+#endif
+#ifdef __ISAPNP__
+ struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
+#endif
+
+ if ( setup_count ) {
+ printk(KERN_INFO "aha152x: processing commandline: ");
+
+ for (i = 0; i<setup_count; i++) {
+ if (!checksetup(&setup[i])) {
+ printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
+ printk(KERN_ERR "aha152x: invalid line\n");
+ }
+ }
+ printk("ok\n");
+ }
+
+#if defined(SETUP0)
+ if (setup_count < ARRAY_SIZE(setup)) {
+ struct aha152x_setup override = SETUP0;
+
+ if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
+ if (!checksetup(&override)) {
+ printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
+ override.io_port,
+ override.irq,
+ override.scsiid,
+ override.reconnect,
+ override.parity,
+ override.synchronous,
+ override.delay,
+ override.ext_trans);
+ } else
+ setup[setup_count++] = override;
+ }
+ }
+#endif
+
+#if defined(SETUP1)
+ if (setup_count < ARRAY_SIZE(setup)) {
+ struct aha152x_setup override = SETUP1;
+
+ if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
+ if (!checksetup(&override)) {
+ printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
+ override.io_port,
+ override.irq,
+ override.scsiid,
+ override.reconnect,
+ override.parity,
+ override.synchronous,
+ override.delay,
+ override.ext_trans);
+ } else
+ setup[setup_count++] = override;
+ }
+ }
+#endif
+
+#if defined(MODULE)
+ if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
+ if(aha152x[0]!=0) {
+ setup[setup_count].conf = "";
+ setup[setup_count].io_port = aha152x[0];
+ setup[setup_count].irq = aha152x[1];
+ setup[setup_count].scsiid = aha152x[2];
+ setup[setup_count].reconnect = aha152x[3];
+ setup[setup_count].parity = aha152x[4];
+ setup[setup_count].synchronous = aha152x[5];
+ setup[setup_count].delay = aha152x[6];
+ setup[setup_count].ext_trans = aha152x[7];
+ } else if (io[0] != 0 || irq[0] != 0) {
+ if(io[0]!=0) setup[setup_count].io_port = io[0];
+ if(irq[0]!=0) setup[setup_count].irq = irq[0];
+
+ setup[setup_count].scsiid = scsiid[0];
+ setup[setup_count].reconnect = reconnect[0];
+ setup[setup_count].parity = parity[0];
+ setup[setup_count].synchronous = sync[0];
+ setup[setup_count].delay = delay[0];
+ setup[setup_count].ext_trans = exttrans[0];
+ }
+
+ if (checksetup(&setup[setup_count]))
+ setup_count++;
+ else
+ printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
+ setup[setup_count].io_port,
+ setup[setup_count].irq,
+ setup[setup_count].scsiid,
+ setup[setup_count].reconnect,
+ setup[setup_count].parity,
+ setup[setup_count].synchronous,
+ setup[setup_count].delay,
+ setup[setup_count].ext_trans);
+ }
+
+ if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
+ if(aha152x1[0]!=0) {
+ setup[setup_count].conf = "";
+ setup[setup_count].io_port = aha152x1[0];
+ setup[setup_count].irq = aha152x1[1];
+ setup[setup_count].scsiid = aha152x1[2];
+ setup[setup_count].reconnect = aha152x1[3];
+ setup[setup_count].parity = aha152x1[4];
+ setup[setup_count].synchronous = aha152x1[5];
+ setup[setup_count].delay = aha152x1[6];
+ setup[setup_count].ext_trans = aha152x1[7];
+ } else if (io[1] != 0 || irq[1] != 0) {
+ if(io[1]!=0) setup[setup_count].io_port = io[1];
+ if(irq[1]!=0) setup[setup_count].irq = irq[1];
+
+ setup[setup_count].scsiid = scsiid[1];
+ setup[setup_count].reconnect = reconnect[1];
+ setup[setup_count].parity = parity[1];
+ setup[setup_count].synchronous = sync[1];
+ setup[setup_count].delay = delay[1];
+ setup[setup_count].ext_trans = exttrans[1];
+ }
+ if (checksetup(&setup[setup_count]))
+ setup_count++;
+ else
+ printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
+ setup[setup_count].io_port,
+ setup[setup_count].irq,
+ setup[setup_count].scsiid,
+ setup[setup_count].reconnect,
+ setup[setup_count].parity,
+ setup[setup_count].synchronous,
+ setup[setup_count].delay,
+ setup[setup_count].ext_trans);
+ }
+#endif
+
+#ifdef __ISAPNP__
+ for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
+ while ( setup_count<ARRAY_SIZE(setup) &&
+ (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
+ if (pnp_device_attach(dev) < 0)
+ continue;
+
+ if (pnp_activate_dev(dev) < 0) {
+ pnp_device_detach(dev);
+ continue;
+ }
+
+ if (!pnp_port_valid(dev, 0)) {
+ pnp_device_detach(dev);
+ continue;
+ }
+
+ if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
+ pnp_device_detach(dev);
+ continue;
+ }
+
+ setup[setup_count].io_port = pnp_port_start(dev, 0);
+ setup[setup_count].irq = pnp_irq(dev, 0);
+ setup[setup_count].scsiid = 7;
+ setup[setup_count].reconnect = 1;
+ setup[setup_count].parity = 1;
+ setup[setup_count].synchronous = 1;
+ setup[setup_count].delay = DELAY_DEFAULT;
+ setup[setup_count].ext_trans = 0;
+#if defined(__ISAPNP__)
+ pnpdev[setup_count] = dev;
+#endif
+ printk (KERN_INFO
+ "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
+ setup[setup_count].io_port, setup[setup_count].irq);
+ setup_count++;
+ }
+ }
+#endif
+
+#if defined(AUTOCONF)
+ if (setup_count<ARRAY_SIZE(setup)) {
+#if !defined(SKIP_BIOSTEST)
+ ok = 0;
+ for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
+ void __iomem *p = ioremap(addresses[i], 0x4000);
+ if (!p)
+ continue;
+ for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
+ ok = check_signature(p + signatures[j].sig_offset,
+ signatures[j].signature, signatures[j].sig_length);
+ iounmap(p);
+ }
+ if (!ok && setup_count == 0)
+ return -ENODEV;
+
+ printk(KERN_INFO "aha152x: BIOS test: passed, ");
+#else
+ printk(KERN_INFO "aha152x: ");
+#endif /* !SKIP_BIOSTEST */
+
+ ok = 0;
+ for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
+ if ((setup_count == 1) && (setup[0].io_port == ports[i]))
+ continue;
+
+ if (!request_region(ports[i], IO_RANGE, "aha152x")) {
+ printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
+ continue;
+ }
+
+ if (aha152x_porttest(ports[i])) {
+ setup[setup_count].tc1550 = 0;
+
+ conf.cf_port =
+ (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
+ } else if (tc1550_porttest(ports[i])) {
+ setup[setup_count].tc1550 = 1;
+
+ conf.cf_port =
+ (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
+ } else {
+ release_region(ports[i], IO_RANGE);
+ continue;
+ }
+
+ release_region(ports[i], IO_RANGE);
+
+ ok++;
+ setup[setup_count].io_port = ports[i];
+ setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
+ setup[setup_count].scsiid = conf.cf_id;
+ setup[setup_count].reconnect = conf.cf_tardisc;
+ setup[setup_count].parity = !conf.cf_parity;
+ setup[setup_count].synchronous = conf.cf_syncneg;
+ setup[setup_count].delay = DELAY_DEFAULT;
+ setup[setup_count].ext_trans = 0;
+ setup_count++;
+
+ }
+
+ if (ok)
+ printk("auto configuration: ok, ");
+ }
+#endif
+
+ printk("%d controller(s) configured\n", setup_count);
+
+ for (i=0; i<setup_count; i++) {
+ if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
+ struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
+
+ if( !shpnt ) {
+ release_region(setup[i].io_port, IO_RANGE);
+#if defined(__ISAPNP__)
+ } else if( pnpdev[i] ) {
+ HOSTDATA(shpnt)->pnpdev=pnpdev[i];
+ pnpdev[i]=NULL;
+#endif
+ }
+ } else {
+ printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
+ }
+
+#if defined(__ISAPNP__)
+ if( pnpdev[i] )
+ pnp_device_detach(pnpdev[i]);
+#endif
+ }
+
+ return 0;
+}
+
+static void __exit aha152x_exit(void)
+{
+ struct aha152x_hostdata *hd, *tmp;
+
+ list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
+ struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
+
+ aha152x_release(shost);
+ }
+}
+
+module_init(aha152x_init);
+module_exit(aha152x_exit);
+
+#if !defined(MODULE)
+static int __init aha152x_setup(char *str)
+{
+ int ints[10];
+
+ get_options(str, ARRAY_SIZE(ints), ints);
+
+ if(setup_count>=ARRAY_SIZE(setup)) {
+ printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
+ return 1;
+ }
+
+ setup[setup_count].conf = str;
+ setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
+ setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
+ setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
+ setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
+ setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
+ setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
+ setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
+ setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
+ if (ints[0] > 8) { /*}*/
+ printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
+ "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
+ } else {
+ setup_count++;
+ return 0;
+ }
+
+ return 1;
+}
+__setup("aha152x=", aha152x_setup);
+#endif
+
+#endif /* !PCMCIA */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 17:45:01 +0000