nsp_debug.c

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/*========================================================================
    Debug routines for nsp_cs
      By: YOKOTA Hiroshi <[email protected]>

    This software may be used and distributed according to the terms of
    the GNU General Public License.
=========================================================================*/

/* $Id: nsp_debug.c,v 1.3 2003/07/26 14:21:09 elca Exp $ */

/*
 * Show the command data of a command
 */
static const char unknown[] = "UNKNOWN";

static const char * group_0_commands[] = {
/* 00-03 */ "Test Unit Ready", "Rezero Unit", unknown, "Request Sense",
/* 04-07 */ "Format Unit", "Read Block Limits", unknown, "Reassign Blocks",
/* 08-0d */ "Read (6)", unknown, "Write (6)", "Seek (6)", unknown, unknown,
/* 0e-12 */ unknown, "Read Reverse", "Write Filemarks", "Space", "Inquiry",  
/* 13-16 */ unknown, "Recover Buffered Data", "Mode Select", "Reserve",
/* 17-1b */ "Release", "Copy", "Erase", "Mode Sense", "Start/Stop Unit",
/* 1c-1d */ "Receive Diagnostic", "Send Diagnostic", 
/* 1e-1f */ "Prevent/Allow Medium Removal", unknown,
};


static const char *group_1_commands[] = {
/* 20-22 */  unknown, unknown, unknown,
/* 23-28 */ unknown, unknown, "Read Capacity", unknown, unknown, "Read (10)",
/* 29-2d */ unknown, "Write (10)", "Seek (10)", unknown, unknown,
/* 2e-31 */ "Write Verify","Verify", "Search High", "Search Equal",
/* 32-34 */ "Search Low", "Set Limits", "Prefetch or Read Position", 
/* 35-37 */ "Synchronize Cache","Lock/Unlock Cache", "Read Defect Data",
/* 38-3c */ "Medium Scan", "Compare","Copy Verify", "Write Buffer", "Read Buffer",
/* 3d-3f */ "Update Block", "Read Long",  "Write Long",
};


static const char *group_2_commands[] = {
/* 40-41 */ "Change Definition", "Write Same", 
/* 42-48 */ "Read Sub-Ch(cd)", "Read TOC", "Read Header(cd)", "Play Audio(cd)", unknown, "Play Audio MSF(cd)", "Play Audio Track/Index(cd)", 
/* 49-4f */ "Play Track Relative(10)(cd)", unknown, "Pause/Resume(cd)", "Log Select", "Log Sense", unknown, unknown,
/* 50-55 */ unknown, unknown, unknown, unknown, unknown, "Mode Select (10)",
/* 56-5b */ unknown, unknown, unknown, unknown, "Mode Sense (10)", unknown,
/* 5c-5f */ unknown, unknown, unknown,
};

#define group(opcode) (((opcode) >> 5) & 7)

#define RESERVED_GROUP  0
#define VENDOR_GROUP    1
#define NOTEXT_GROUP    2

static const char **commands[] = {
    group_0_commands, group_1_commands, group_2_commands, 
    (const char **) RESERVED_GROUP, (const char **) RESERVED_GROUP, 
    (const char **) NOTEXT_GROUP, (const char **) VENDOR_GROUP, 
    (const char **) VENDOR_GROUP
};

static const char reserved[] = "RESERVED";
static const char vendor[] = "VENDOR SPECIFIC";

static void print_opcodek(unsigned char opcode)
{
    const char **table = commands[ group(opcode) ];

    switch ((unsigned long) table) {
    case RESERVED_GROUP:
        printk("%s[%02x] ", reserved, opcode); 
        break;
    case NOTEXT_GROUP:
        printk("%s(notext)[%02x] ", unknown, opcode); 
        break;
    case VENDOR_GROUP:
        printk("%s[%02x] ", vendor, opcode); 
        break;
    default:
        if (table[opcode & 0x1f] != unknown)
            printk("%s[%02x] ", table[opcode & 0x1f], opcode);
        else
            printk("%s[%02x] ", unknown, opcode);
        break;
    }
}

static void print_commandk (unsigned char *command)
{
    int i, s;
    printk(KERN_DEBUG);
    print_opcodek(command[0]);
    /*printk(KERN_DEBUG "%s ", __func__);*/
    if ((command[0] >> 5) == 6 ||
        (command[0] >> 5) == 7 ) {
        s = 12; /* vender specific */
    } else {
        s = COMMAND_SIZE(command[0]);
    }
    for ( i = 1; i < s; ++i) {
        printk("%02x ", command[i]);
    }

    switch (s) {
    case 6:
        printk("LBA=%d len=%d",
               (((unsigned int)command[1] & 0x0f) << 16) |
               ( (unsigned int)command[2]         <<  8) |
               ( (unsigned int)command[3]              ),
               (unsigned int)command[4]
            );
        break;
    case 10:
        printk("LBA=%d len=%d",
               ((unsigned int)command[2] << 24) |
               ((unsigned int)command[3] << 16) |
               ((unsigned int)command[4] <<  8) |
               ((unsigned int)command[5]      ),
               ((unsigned int)command[7] <<  8) |
               ((unsigned int)command[8]      )
               );
        break;
    case 12:
        printk("LBA=%d len=%d",
               ((unsigned int)command[2] << 24) |
               ((unsigned int)command[3] << 16) |
               ((unsigned int)command[4] <<  8) |
               ((unsigned int)command[5]      ),
               ((unsigned int)command[6] << 24) |
               ((unsigned int)command[7] << 16) |
               ((unsigned int)command[8] <<  8) |
               ((unsigned int)command[9]      )
               );
        break;
    default:
        break;
    }
    printk("\n");
}

static void show_command(struct scsi_cmnd *SCpnt)
{
    print_commandk(SCpnt->cmnd);
}

static void show_phase(struct scsi_cmnd *SCpnt)
{
    int i = SCpnt->SCp.phase;

    char *ph[] = {
        "PH_UNDETERMINED",
        "PH_ARBSTART",
        "PH_SELSTART",
        "PH_SELECTED",
        "PH_COMMAND",
        "PH_DATA",
        "PH_STATUS",
        "PH_MSG_IN",
        "PH_MSG_OUT",
        "PH_DISCONNECT",
        "PH_RESELECT"
    };

    if ( i < PH_UNDETERMINED || i > PH_RESELECT ) {
        printk(KERN_DEBUG "scsi phase: unknown(%d)\n", i);
        return;
    }

    printk(KERN_DEBUG "scsi phase: %s\n", ph[i]);

    return;
}

static void show_busphase(unsigned char stat)
{
    switch(stat) {
    case BUSPHASE_COMMAND:
        printk(KERN_DEBUG "BUSPHASE_COMMAND\n");
        break;
    case BUSPHASE_MESSAGE_IN:
        printk(KERN_DEBUG "BUSPHASE_MESSAGE_IN\n");
        break;
    case BUSPHASE_MESSAGE_OUT:
        printk(KERN_DEBUG "BUSPHASE_MESSAGE_OUT\n");
        break;
    case BUSPHASE_DATA_IN:
        printk(KERN_DEBUG "BUSPHASE_DATA_IN\n");
        break;
    case BUSPHASE_DATA_OUT:
        printk(KERN_DEBUG "BUSPHASE_DATA_OUT\n");
        break;
    case BUSPHASE_STATUS:
        printk(KERN_DEBUG "BUSPHASE_STATUS\n");
        break;
    case BUSPHASE_SELECT:
        printk(KERN_DEBUG "BUSPHASE_SELECT\n");
        break;
    default:
        printk(KERN_DEBUG "BUSPHASE_other\n");
        break;
    }
}

static void show_message(nsp_hw_data *data)
{
    int i;

    printk(KERN_DEBUG "msg:");
    for(i=0; i < data->MsgLen; i++) {
        printk(" %02x", data->MsgBuffer[i]);
    }
    printk("\n");
}

/* end */