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phoenix |
/* $Id: xwidget.h,v 1.1.1.1 2004-04-15 02:58:09 phoenix Exp $
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1992-1997,2000-2003 Silicon Graphics, Inc. All Rights Reserved.
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*/
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#ifndef __ASM_SN_XTALK_XWIDGET_H__
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#define __ASM_SN_XTALK_XWIDGET_H__
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/*
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* xwidget.h - generic crosstalk widget header file
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*/
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#ifdef __KERNEL__
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#include <asm/sn/xtalk/xtalk.h>
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#ifndef __ASSEMBLY__
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#include <asm/sn/cdl.h>
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#endif /* __ASSEMBLY__ */
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#else
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#include <xtalk/xtalk.h>
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#endif
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#ifdef LITTLE_ENDIAN
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#define WIDGET_ID 0x00
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#define WIDGET_STATUS 0x08
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#define WIDGET_ERR_UPPER_ADDR 0x10
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#define WIDGET_ERR_LOWER_ADDR 0x18
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#define WIDGET_CONTROL 0x20
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#define WIDGET_REQ_TIMEOUT 0x28
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#define WIDGET_INTDEST_UPPER_ADDR 0x30
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#define WIDGET_INTDEST_LOWER_ADDR 0x38
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#define WIDGET_ERR_CMD_WORD 0x40
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#define WIDGET_LLP_CFG 0x48
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#define WIDGET_TFLUSH 0x50
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#else /* !LITTLE_ENDIAN */
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#define WIDGET_ID 0x04
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#define WIDGET_STATUS 0x0c
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#define WIDGET_ERR_UPPER_ADDR 0x14
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#define WIDGET_ERR_LOWER_ADDR 0x1c
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#define WIDGET_CONTROL 0x24
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#define WIDGET_REQ_TIMEOUT 0x2c
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#define WIDGET_INTDEST_UPPER_ADDR 0x34
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#define WIDGET_INTDEST_LOWER_ADDR 0x3c
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#define WIDGET_ERR_CMD_WORD 0x44
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#define WIDGET_LLP_CFG 0x4c
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#define WIDGET_TFLUSH 0x54
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#endif
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/* WIDGET_ID */
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#define WIDGET_REV_NUM 0xf0000000
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#define WIDGET_PART_NUM 0x0ffff000
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#define WIDGET_MFG_NUM 0x00000ffe
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#define WIDGET_REV_NUM_SHFT 28
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#define WIDGET_PART_NUM_SHFT 12
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#define WIDGET_MFG_NUM_SHFT 1
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#define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
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#define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
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#define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)
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#define XWIDGET_PART_REV_NUM(widgetid) ((XWIDGET_PART_NUM(widgetid) << 4) | \
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XWIDGET_REV_NUM(widgetid))
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#define XWIDGET_PART_REV_NUM_REV(partrev) (partrev & 0xf)
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/* WIDGET_STATUS */
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#define WIDGET_LLP_REC_CNT 0xff000000
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#define WIDGET_LLP_TX_CNT 0x00ff0000
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#define WIDGET_PENDING 0x0000001f
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/* WIDGET_ERR_UPPER_ADDR */
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#define WIDGET_ERR_UPPER_ADDR_ONLY 0x0000ffff
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/* WIDGET_CONTROL */
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#define WIDGET_F_BAD_PKT 0x00010000
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#define WIDGET_LLP_XBAR_CRD 0x0000f000
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#define WIDGET_LLP_XBAR_CRD_SHFT 12
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#define WIDGET_CLR_RLLP_CNT 0x00000800
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#define WIDGET_CLR_TLLP_CNT 0x00000400
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#define WIDGET_SYS_END 0x00000200
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#define WIDGET_MAX_TRANS 0x000001f0
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#define WIDGET_PCI_SPEED 0x00000030
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#define WIDGET_PCI_SPEED_SHFT 4
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#define WIDGET_PCI_SPEED_33MHZ 0
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#define WIDGET_PCI_SPEED_66MHZ 1
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#define WIDGET_WIDGET_ID 0x0000000f
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/* WIDGET_INTDEST_UPPER_ADDR */
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#define WIDGET_INT_VECTOR 0xff000000
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#define WIDGET_INT_VECTOR_SHFT 24
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#define WIDGET_TARGET_ID 0x000f0000
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#define WIDGET_TARGET_ID_SHFT 16
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#define WIDGET_UPP_ADDR 0x0000ffff
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/* WIDGET_ERR_CMD_WORD */
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#define WIDGET_DIDN 0xf0000000
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#define WIDGET_SIDN 0x0f000000
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#define WIDGET_PACTYP 0x00f00000
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#define WIDGET_TNUM 0x000f8000
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#define WIDGET_COHERENT 0x00004000
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#define WIDGET_DS 0x00003000
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#define WIDGET_GBR 0x00000800
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#define WIDGET_VBPM 0x00000400
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#define WIDGET_ERROR 0x00000200
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#define WIDGET_BARRIER 0x00000100
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/* WIDGET_LLP_CFG */
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#define WIDGET_LLP_MAXRETRY 0x03ff0000
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#define WIDGET_LLP_MAXRETRY_SHFT 16
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#define WIDGET_LLP_NULLTIMEOUT 0x0000fc00
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#define WIDGET_LLP_NULLTIMEOUT_SHFT 10
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#define WIDGET_LLP_MAXBURST 0x000003ff
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#define WIDGET_LLP_MAXBURST_SHFT 0
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/*
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* according to the crosstalk spec, only 32-bits access to the widget
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* configuration registers is allowed. some widgets may allow 64-bits
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* access but software should not depend on it. registers beyond the
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* widget target flush register are widget dependent thus will not be
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* defined here
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*/
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#ifndef __ASSEMBLY__
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typedef uint32_t widgetreg_t;
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/* widget configuration registers */
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typedef volatile struct widget_cfg {
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#ifdef LITTLE_ENDIAN
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/*
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* we access these through synergy unswizzled space, so the address
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* gets twiddled (i.e. references to 0x4 actually go to 0x0 and vv.)
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* That's why we put the register first and filler second.
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*/
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widgetreg_t w_id; /* 0x04 */
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widgetreg_t w_pad_0; /* 0x00 */
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widgetreg_t w_status; /* 0x0c */
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widgetreg_t w_pad_1; /* 0x08 */
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widgetreg_t w_err_upper_addr; /* 0x14 */
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widgetreg_t w_pad_2; /* 0x10 */
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widgetreg_t w_err_lower_addr; /* 0x1c */
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widgetreg_t w_pad_3; /* 0x18 */
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widgetreg_t w_control; /* 0x24 */
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widgetreg_t w_pad_4; /* 0x20 */
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widgetreg_t w_req_timeout; /* 0x2c */
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widgetreg_t w_pad_5; /* 0x28 */
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widgetreg_t w_intdest_upper_addr; /* 0x34 */
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widgetreg_t w_pad_6; /* 0x30 */
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widgetreg_t w_intdest_lower_addr; /* 0x3c */
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widgetreg_t w_pad_7; /* 0x38 */
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widgetreg_t w_err_cmd_word; /* 0x44 */
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widgetreg_t w_pad_8; /* 0x40 */
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widgetreg_t w_llp_cfg; /* 0x4c */
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widgetreg_t w_pad_9; /* 0x48 */
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widgetreg_t w_tflush; /* 0x54 */
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widgetreg_t w_pad_10; /* 0x50 */
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#else
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widgetreg_t w_pad_0; /* 0x00 */
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widgetreg_t w_id; /* 0x04 */
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widgetreg_t w_pad_1; /* 0x08 */
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widgetreg_t w_status; /* 0x0c */
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widgetreg_t w_pad_2; /* 0x10 */
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widgetreg_t w_err_upper_addr; /* 0x14 */
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widgetreg_t w_pad_3; /* 0x18 */
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widgetreg_t w_err_lower_addr; /* 0x1c */
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widgetreg_t w_pad_4; /* 0x20 */
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widgetreg_t w_control; /* 0x24 */
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widgetreg_t w_pad_5; /* 0x28 */
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widgetreg_t w_req_timeout; /* 0x2c */
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widgetreg_t w_pad_6; /* 0x30 */
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widgetreg_t w_intdest_upper_addr; /* 0x34 */
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widgetreg_t w_pad_7; /* 0x38 */
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widgetreg_t w_intdest_lower_addr; /* 0x3c */
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widgetreg_t w_pad_8; /* 0x40 */
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widgetreg_t w_err_cmd_word; /* 0x44 */
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widgetreg_t w_pad_9; /* 0x48 */
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widgetreg_t w_llp_cfg; /* 0x4c */
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widgetreg_t w_pad_10; /* 0x50 */
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widgetreg_t w_tflush; /* 0x54 */
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#endif /* LITTLE_ENDIAN */
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} widget_cfg_t;
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#ifdef LITTLE_ENDIAN
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typedef struct {
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unsigned other:8;
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unsigned bo:1;
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unsigned error:1;
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unsigned vbpm:1;
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unsigned gbr:1;
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unsigned ds:2;
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unsigned ct:1;
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unsigned tnum:5;
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unsigned pactyp:4;
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unsigned sidn:4;
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unsigned didn:4;
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} w_err_cmd_word_f;
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#else
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typedef struct {
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unsigned didn:4;
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unsigned sidn:4;
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unsigned pactyp:4;
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unsigned tnum:5;
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unsigned ct:1;
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unsigned ds:2;
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unsigned gbr:1;
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unsigned vbpm:1;
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unsigned error:1;
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unsigned bo:1;
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unsigned other:8;
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} w_err_cmd_word_f;
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#endif
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#ifdef LITTLE_ENDIAN
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typedef union {
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w_err_cmd_word_f f;
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widgetreg_t r;
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} w_err_cmd_word_u;
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#else
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typedef union {
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widgetreg_t r;
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w_err_cmd_word_f f;
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} w_err_cmd_word_u;
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#endif
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/* IO widget initialization function */
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typedef struct xwidget_info_s *xwidget_info_t;
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/*
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* Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
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*/
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#ifdef LITTLE_ENDIAN
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typedef struct xwidget_hwid_s {
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xwidget_mfg_num_t mfg_num;
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xwidget_rev_num_t rev_num;
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xwidget_part_num_t part_num;
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} *xwidget_hwid_t;
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#else
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typedef struct xwidget_hwid_s {
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xwidget_part_num_t part_num;
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xwidget_rev_num_t rev_num;
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xwidget_mfg_num_t mfg_num;
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} *xwidget_hwid_t;
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#endif
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/*
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* Returns 1 if a driver that handles devices described by hwid1 is able
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* to manage a device with hardwareid hwid2. NOTE: We don't check rev
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* numbers at all.
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*/
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#define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
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(((hwid1)->part_num == (hwid2)->part_num) && \
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(((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
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((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
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((hwid1)->mfg_num == (hwid2)->mfg_num)))
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/* Generic crosstalk widget initialization interface */
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#if __KERNEL__
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extern int xwidget_driver_register(xwidget_part_num_t part_num,
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xwidget_mfg_num_t mfg_num,
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char *driver_prefix,
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unsigned flags);
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extern void xwidget_driver_unregister(char *driver_prefix);
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extern int xwidget_register(struct xwidget_hwid_s *hwid,
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vertex_hdl_t dev,
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xwidgetnum_t id,
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vertex_hdl_t master,
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xwidgetnum_t targetid);
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extern int xwidget_unregister(vertex_hdl_t);
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extern void xwidget_reset(vertex_hdl_t xwidget);
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extern void xwidget_gfx_reset(vertex_hdl_t xwidget);
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extern char *xwidget_name_get(vertex_hdl_t xwidget);
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/* Generic crosstalk widget information access interface */
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extern xwidget_info_t xwidget_info_chk(vertex_hdl_t widget);
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extern xwidget_info_t xwidget_info_get(vertex_hdl_t widget);
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extern void xwidget_info_set(vertex_hdl_t widget, xwidget_info_t widget_info);
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extern vertex_hdl_t xwidget_info_dev_get(xwidget_info_t xwidget_info);
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extern xwidgetnum_t xwidget_info_id_get(xwidget_info_t xwidget_info);
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extern int xwidget_info_type_get(xwidget_info_t xwidget_info);
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extern int xwidget_info_state_get(xwidget_info_t xwidget_info);
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extern vertex_hdl_t xwidget_info_master_get(xwidget_info_t xwidget_info);
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extern xwidgetnum_t xwidget_info_masterid_get(xwidget_info_t xwidget_info);
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extern xwidget_part_num_t xwidget_info_part_num_get(xwidget_info_t xwidget_info);
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extern xwidget_rev_num_t xwidget_info_rev_num_get(xwidget_info_t xwidget_info);
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extern xwidget_mfg_num_t xwidget_info_mfg_num_get(xwidget_info_t xwidget_info);
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extern xwidgetnum_t hub_widget_id(nasid_t);
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/*
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* TBD: DELETE THIS ENTIRE STRUCTURE! Equivalent is now in
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* xtalk_private.h: xwidget_info_s
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* This is just here for now because we still have a lot of
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* junk referencing it.
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* However, since nobody looks inside ...
|
| 302 |
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*/
|
| 303 |
|
|
typedef struct v_widget_s {
|
| 304 |
|
|
unsigned v_widget_s_is_really_empty;
|
| 305 |
|
|
#define v_widget_s_is_really_empty and using this would be a syntax error.
|
| 306 |
|
|
} v_widget_t;
|
| 307 |
|
|
#endif /* _KERNEL */
|
| 308 |
|
|
|
| 309 |
|
|
#endif /* __ASSEMBLY__ */
|
| 310 |
|
|
|
| 311 |
|
|
#endif /* __ASM_SN_XTALK_XWIDGET_H__ */
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