xwidgetdev.h

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1992-1997,2000-2003 Silicon Graphics, Inc. All Rights Reserved.
 */
#ifndef _ASM_IA64_SN_XTALK_XWIDGET_H
#define _ASM_IA64_SN_XTALK_XWIDGET_H

/* WIDGET_ID */
#define WIDGET_REV_NUM                  0xf0000000
#define WIDGET_PART_NUM                 0x0ffff000
#define WIDGET_MFG_NUM                  0x00000ffe
#define WIDGET_REV_NUM_SHFT             28
#define WIDGET_PART_NUM_SHFT            12
#define WIDGET_MFG_NUM_SHFT             1

#define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
#define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
#define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)
#define XWIDGET_PART_REV_NUM(widgetid) ((XWIDGET_PART_NUM(widgetid) << 4) | \
                                        XWIDGET_REV_NUM(widgetid))
#define XWIDGET_PART_REV_NUM_REV(partrev) (partrev & 0xf)

/* widget configuration registers */
struct widget_cfg{
    u32 w_id;   /* 0x04 */
    u32 w_pad_0;    /* 0x00 */
    u32 w_status;   /* 0x0c */
    u32 w_pad_1;    /* 0x08 */
    u32 w_err_upper_addr;   /* 0x14 */
    u32 w_pad_2;    /* 0x10 */
    u32 w_err_lower_addr;   /* 0x1c */
    u32 w_pad_3;    /* 0x18 */
    u32 w_control;  /* 0x24 */
    u32 w_pad_4;    /* 0x20 */
    u32 w_req_timeout;  /* 0x2c */
    u32 w_pad_5;    /* 0x28 */
    u32 w_intdest_upper_addr;   /* 0x34 */
    u32 w_pad_6;    /* 0x30 */
    u32 w_intdest_lower_addr;   /* 0x3c */
    u32 w_pad_7;    /* 0x38 */
    u32 w_err_cmd_word; /* 0x44 */
    u32 w_pad_8;    /* 0x40 */
    u32 w_llp_cfg;  /* 0x4c */
    u32 w_pad_9;    /* 0x48 */
    u32 w_tflush;   /* 0x54 */
    u32 w_pad_10;   /* 0x50 */
};

/*
 * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
 */
struct xwidget_hwid{
    int     mfg_num;
    int     rev_num;
    int     part_num;
};

struct xwidget_info{

    struct xwidget_hwid xwi_hwid;   /* Widget Identification */
    char            xwi_masterxid;  /* Hub's Widget Port Number */
    void            *xwi_hubinfo;     /* Hub's provider private info */
    u64         *xwi_hub_provider; /* prom provider functions */
    void            *xwi_vertex;
};

#endif                          /* _ASM_IA64_SN_XTALK_XWIDGET_H */