source: svn/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/asm/xtalk/xwidget.h @ 43

Last change on this file since 43 was 43, checked in by megakiss, 11 years ago

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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * xwidget.h - generic crosstalk widget header file, derived from IRIX
7 * <sys/xtalk/xtalkwidget.h>, revision 1.32.
8 *
9 * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
10 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
11 */
12#ifndef _ASM_XTALK_XWIDGET_H
13#define _ASM_XTALK_XWIDGET_H
14
15#include <linux/types.h>
16#include <asm/xtalk/xtalk.h>
17
18#define WIDGET_ID                       0x04
19#define WIDGET_STATUS                   0x0c
20#define WIDGET_ERR_UPPER_ADDR           0x14
21#define WIDGET_ERR_LOWER_ADDR           0x1c
22#define WIDGET_CONTROL                  0x24
23#define WIDGET_REQ_TIMEOUT              0x2c
24#define WIDGET_INTDEST_UPPER_ADDR       0x34
25#define WIDGET_INTDEST_LOWER_ADDR       0x3c
26#define WIDGET_ERR_CMD_WORD             0x44
27#define WIDGET_LLP_CFG                  0x4c
28#define WIDGET_TFLUSH                   0x54
29
30/* WIDGET_ID */
31#define WIDGET_REV_NUM                  0xf0000000
32#define WIDGET_PART_NUM                 0x0ffff000
33#define WIDGET_MFG_NUM                  0x00000ffe
34#define WIDGET_REV_NUM_SHFT             28
35#define WIDGET_PART_NUM_SHFT            12
36#define WIDGET_MFG_NUM_SHFT             1
37
38#define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
39#define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
40#define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)
41
42/* WIDGET_STATUS */
43#define WIDGET_LLP_REC_CNT              0xff000000
44#define WIDGET_LLP_TX_CNT               0x00ff0000
45#define WIDGET_PENDING                  0x0000001f
46
47/* WIDGET_ERR_UPPER_ADDR */
48#define WIDGET_ERR_UPPER_ADDR_ONLY      0x0000ffff
49
50/* WIDGET_CONTROL */
51#define WIDGET_F_BAD_PKT                0x00010000
52#define WIDGET_LLP_XBAR_CRD             0x0000f000
53#define WIDGET_LLP_XBAR_CRD_SHFT        12
54#define WIDGET_CLR_RLLP_CNT             0x00000800
55#define WIDGET_CLR_TLLP_CNT             0x00000400
56#define WIDGET_SYS_END                  0x00000200
57#define WIDGET_MAX_TRANS                0x000001f0
58#define WIDGET_WIDGET_ID                0x0000000f
59
60/* WIDGET_INTDEST_UPPER_ADDR */
61#define WIDGET_INT_VECTOR               0xff000000
62#define WIDGET_INT_VECTOR_SHFT          24
63#define WIDGET_TARGET_ID                0x000f0000
64#define WIDGET_TARGET_ID_SHFT           16
65#define WIDGET_UPP_ADDR                 0x0000ffff
66
67/* WIDGET_ERR_CMD_WORD */
68#define WIDGET_DIDN                     0xf0000000
69#define WIDGET_SIDN                     0x0f000000
70#define WIDGET_PACTYP                   0x00f00000
71#define WIDGET_TNUM                     0x000f8000
72#define WIDGET_COHERENT                 0x00004000
73#define WIDGET_DS                       0x00003000
74#define WIDGET_GBR                      0x00000800
75#define WIDGET_VBPM                     0x00000400
76#define WIDGET_ERROR                    0x00000200
77#define WIDGET_BARRIER                  0x00000100
78
79/* WIDGET_LLP_CFG */
80#define WIDGET_LLP_MAXRETRY             0x03ff0000
81#define WIDGET_LLP_MAXRETRY_SHFT        16
82#define WIDGET_LLP_NULLTIMEOUT          0x0000fc00
83#define WIDGET_LLP_NULLTIMEOUT_SHFT     10
84#define WIDGET_LLP_MAXBURST             0x000003ff
85#define WIDGET_LLP_MAXBURST_SHFT        0
86
87/*
88 * according to the crosstalk spec, only 32-bits access to the widget
89 * configuration registers is allowed.  some widgets may allow 64-bits
90 * access but software should not depend on it.  registers beyond the
91 * widget target flush register are widget dependent thus will not be
92 * defined here
93 */
94#ifndef __ASSEMBLY__
95typedef __u32 widgetreg_t;
96
97/* widget configuration registers */
98typedef volatile struct widget_cfg {
99        widgetreg_t             w_pad_0;                /* 0x00 */
100        widgetreg_t             w_id;                   /* 0x04 */
101        widgetreg_t             w_pad_1;                /* 0x08 */
102        widgetreg_t             w_status;               /* 0x0c */
103        widgetreg_t             w_pad_2;                /* 0x10 */
104        widgetreg_t             w_err_upper_addr;       /* 0x14 */
105        widgetreg_t             w_pad_3;                /* 0x18 */
106        widgetreg_t             w_err_lower_addr;       /* 0x1c */
107        widgetreg_t             w_pad_4;                /* 0x20 */
108        widgetreg_t             w_control;              /* 0x24 */
109        widgetreg_t             w_pad_5;                /* 0x28 */
110        widgetreg_t             w_req_timeout;          /* 0x2c */
111        widgetreg_t             w_pad_6;                /* 0x30 */
112        widgetreg_t             w_intdest_upper_addr;   /* 0x34 */
113        widgetreg_t             w_pad_7;                /* 0x38 */
114        widgetreg_t             w_intdest_lower_addr;   /* 0x3c */
115        widgetreg_t             w_pad_8;                /* 0x40 */
116        widgetreg_t             w_err_cmd_word;         /* 0x44 */
117        widgetreg_t             w_pad_9;                /* 0x48 */
118        widgetreg_t             w_llp_cfg;              /* 0x4c */
119        widgetreg_t             w_pad_10;               /* 0x50 */
120        widgetreg_t             w_tflush;               /* 0x54 */
121} widget_cfg_t;
122
123typedef struct {
124        unsigned        didn:4;
125        unsigned        sidn:4;
126        unsigned        pactyp:4;
127        unsigned        tnum:5;
128        unsigned        ct:1;
129        unsigned        ds:2;
130        unsigned        gbr:1;
131        unsigned        vbpm:1;
132        unsigned        error:1;
133        unsigned        bo:1;
134        unsigned        other:8;
135} w_err_cmd_word_f;
136
137typedef union {
138        widgetreg_t             r;
139        w_err_cmd_word_f        f;
140} w_err_cmd_word_u;
141
142typedef struct xwidget_info_s *xwidget_info_t;
143
144/*
145 * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
146 */
147typedef struct xwidget_hwid_s {
148        xwidget_part_num_t      part_num;
149        xwidget_rev_num_t       rev_num;
150        xwidget_mfg_num_t       mfg_num;
151} *xwidget_hwid_t;
152
153
154/*
155 * Returns 1 if a driver that handles devices described by hwid1 is able
156 * to manage a device with hardwareid hwid2.  NOTE: We don't check rev
157 * numbers at all.
158 */
159#define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
160        (((hwid1)->part_num == (hwid2)->part_num) && \
161        (((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
162        ((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
163        ((hwid1)->mfg_num == (hwid2)->mfg_num)))
164
165#endif /* !__ASSEMBLY__ */
166
167#endif /* _ASM_XTALK_XWIDGET_H */
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