forked from Minki/linux
168 lines
4.9 KiB
C
168 lines
4.9 KiB
C
/*
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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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* xwidget.h - generic crosstalk widget header file, derived from IRIX
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* <sys/xtalk/xtalkwidget.h>, revision 1.32.
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*
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* Copyright (C) 1996, 1999 Silcon Graphics, Inc.
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* Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
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*/
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#ifndef _ASM_XTALK_XWIDGET_H
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#define _ASM_XTALK_XWIDGET_H
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#include <linux/types.h>
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#include <asm/xtalk/xtalk.h>
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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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/* 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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/* 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_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 u32 widgetreg_t;
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/* widget configuration registers */
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typedef volatile struct widget_cfg {
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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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} widget_cfg_t;
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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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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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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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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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/*
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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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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_XTALK_XWIDGET_H */
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