168 lines
4.9 KiB
C
168 lines
4.9 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* xwidget.h - generic crosstalk widget header file, derived from IRIX
|
|
* <sys/xtalk/xtalkwidget.h>, revision 1.32.
|
|
*
|
|
* Copyright (C) 1996, 1999 Silcon Graphics, Inc.
|
|
* Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
|
|
*/
|
|
#ifndef _ASM_XTALK_XWIDGET_H
|
|
#define _ASM_XTALK_XWIDGET_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/xtalk/xtalk.h>
|
|
|
|
#define WIDGET_ID 0x04
|
|
#define WIDGET_STATUS 0x0c
|
|
#define WIDGET_ERR_UPPER_ADDR 0x14
|
|
#define WIDGET_ERR_LOWER_ADDR 0x1c
|
|
#define WIDGET_CONTROL 0x24
|
|
#define WIDGET_REQ_TIMEOUT 0x2c
|
|
#define WIDGET_INTDEST_UPPER_ADDR 0x34
|
|
#define WIDGET_INTDEST_LOWER_ADDR 0x3c
|
|
#define WIDGET_ERR_CMD_WORD 0x44
|
|
#define WIDGET_LLP_CFG 0x4c
|
|
#define WIDGET_TFLUSH 0x54
|
|
|
|
/* 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)
|
|
|
|
/* WIDGET_STATUS */
|
|
#define WIDGET_LLP_REC_CNT 0xff000000
|
|
#define WIDGET_LLP_TX_CNT 0x00ff0000
|
|
#define WIDGET_PENDING 0x0000001f
|
|
|
|
/* WIDGET_ERR_UPPER_ADDR */
|
|
#define WIDGET_ERR_UPPER_ADDR_ONLY 0x0000ffff
|
|
|
|
/* WIDGET_CONTROL */
|
|
#define WIDGET_F_BAD_PKT 0x00010000
|
|
#define WIDGET_LLP_XBAR_CRD 0x0000f000
|
|
#define WIDGET_LLP_XBAR_CRD_SHFT 12
|
|
#define WIDGET_CLR_RLLP_CNT 0x00000800
|
|
#define WIDGET_CLR_TLLP_CNT 0x00000400
|
|
#define WIDGET_SYS_END 0x00000200
|
|
#define WIDGET_MAX_TRANS 0x000001f0
|
|
#define WIDGET_WIDGET_ID 0x0000000f
|
|
|
|
/* WIDGET_INTDEST_UPPER_ADDR */
|
|
#define WIDGET_INT_VECTOR 0xff000000
|
|
#define WIDGET_INT_VECTOR_SHFT 24
|
|
#define WIDGET_TARGET_ID 0x000f0000
|
|
#define WIDGET_TARGET_ID_SHFT 16
|
|
#define WIDGET_UPP_ADDR 0x0000ffff
|
|
|
|
/* WIDGET_ERR_CMD_WORD */
|
|
#define WIDGET_DIDN 0xf0000000
|
|
#define WIDGET_SIDN 0x0f000000
|
|
#define WIDGET_PACTYP 0x00f00000
|
|
#define WIDGET_TNUM 0x000f8000
|
|
#define WIDGET_COHERENT 0x00004000
|
|
#define WIDGET_DS 0x00003000
|
|
#define WIDGET_GBR 0x00000800
|
|
#define WIDGET_VBPM 0x00000400
|
|
#define WIDGET_ERROR 0x00000200
|
|
#define WIDGET_BARRIER 0x00000100
|
|
|
|
/* WIDGET_LLP_CFG */
|
|
#define WIDGET_LLP_MAXRETRY 0x03ff0000
|
|
#define WIDGET_LLP_MAXRETRY_SHFT 16
|
|
#define WIDGET_LLP_NULLTIMEOUT 0x0000fc00
|
|
#define WIDGET_LLP_NULLTIMEOUT_SHFT 10
|
|
#define WIDGET_LLP_MAXBURST 0x000003ff
|
|
#define WIDGET_LLP_MAXBURST_SHFT 0
|
|
|
|
/*
|
|
* according to the crosstalk spec, only 32-bits access to the widget
|
|
* configuration registers is allowed. some widgets may allow 64-bits
|
|
* access but software should not depend on it. registers beyond the
|
|
* widget target flush register are widget dependent thus will not be
|
|
* defined here
|
|
*/
|
|
#ifndef __ASSEMBLY__
|
|
typedef u32 widgetreg_t;
|
|
|
|
/* widget configuration registers */
|
|
typedef volatile struct widget_cfg {
|
|
widgetreg_t w_pad_0; /* 0x00 */
|
|
widgetreg_t w_id; /* 0x04 */
|
|
widgetreg_t w_pad_1; /* 0x08 */
|
|
widgetreg_t w_status; /* 0x0c */
|
|
widgetreg_t w_pad_2; /* 0x10 */
|
|
widgetreg_t w_err_upper_addr; /* 0x14 */
|
|
widgetreg_t w_pad_3; /* 0x18 */
|
|
widgetreg_t w_err_lower_addr; /* 0x1c */
|
|
widgetreg_t w_pad_4; /* 0x20 */
|
|
widgetreg_t w_control; /* 0x24 */
|
|
widgetreg_t w_pad_5; /* 0x28 */
|
|
widgetreg_t w_req_timeout; /* 0x2c */
|
|
widgetreg_t w_pad_6; /* 0x30 */
|
|
widgetreg_t w_intdest_upper_addr; /* 0x34 */
|
|
widgetreg_t w_pad_7; /* 0x38 */
|
|
widgetreg_t w_intdest_lower_addr; /* 0x3c */
|
|
widgetreg_t w_pad_8; /* 0x40 */
|
|
widgetreg_t w_err_cmd_word; /* 0x44 */
|
|
widgetreg_t w_pad_9; /* 0x48 */
|
|
widgetreg_t w_llp_cfg; /* 0x4c */
|
|
widgetreg_t w_pad_10; /* 0x50 */
|
|
widgetreg_t w_tflush; /* 0x54 */
|
|
} widget_cfg_t;
|
|
|
|
typedef struct {
|
|
unsigned didn:4;
|
|
unsigned sidn:4;
|
|
unsigned pactyp:4;
|
|
unsigned tnum:5;
|
|
unsigned ct:1;
|
|
unsigned ds:2;
|
|
unsigned gbr:1;
|
|
unsigned vbpm:1;
|
|
unsigned error:1;
|
|
unsigned bo:1;
|
|
unsigned other:8;
|
|
} w_err_cmd_word_f;
|
|
|
|
typedef union {
|
|
widgetreg_t r;
|
|
w_err_cmd_word_f f;
|
|
} w_err_cmd_word_u;
|
|
|
|
typedef struct xwidget_info_s *xwidget_info_t;
|
|
|
|
/*
|
|
* Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
|
|
*/
|
|
typedef struct xwidget_hwid_s {
|
|
xwidget_part_num_t part_num;
|
|
xwidget_rev_num_t rev_num;
|
|
xwidget_mfg_num_t mfg_num;
|
|
} *xwidget_hwid_t;
|
|
|
|
|
|
/*
|
|
* Returns 1 if a driver that handles devices described by hwid1 is able
|
|
* to manage a device with hardwareid hwid2. NOTE: We don't check rev
|
|
* numbers at all.
|
|
*/
|
|
#define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
|
|
(((hwid1)->part_num == (hwid2)->part_num) && \
|
|
(((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
|
|
((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
|
|
((hwid1)->mfg_num == (hwid2)->mfg_num)))
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_XTALK_XWIDGET_H */
|