xwidget.h
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上传日期：2013-02-24
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- /* $Id$
- *
- * 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 Silicon Graphics, Inc.
- * Copyright (C) 2000 by Colin Ngam
- */
- #ifndef __ASM_SN_XTALK_XWIDGET_H__
- #define __ASM_SN_XTALK_XWIDGET_H__
- /*
- * xwidget.h - generic crosstalk widget header file
- */
- #include <asm/sn/xtalk/xtalk.h>
- #if LANGUAGE_C
- #include <asm/sn/cdl.h>
- #endif /* LANGUAGE_C */
- #ifdef LITTLE_ENDIAN
- #define WIDGET_ID 0x00
- #define WIDGET_STATUS 0x08
- #define WIDGET_ERR_UPPER_ADDR 0x10
- #define WIDGET_ERR_LOWER_ADDR 0x18
- #define WIDGET_CONTROL 0x20
- #define WIDGET_REQ_TIMEOUT 0x28
- #define WIDGET_INTDEST_UPPER_ADDR 0x30
- #define WIDGET_INTDEST_LOWER_ADDR 0x38
- #define WIDGET_ERR_CMD_WORD 0x40
- #define WIDGET_LLP_CFG 0x48
- #define WIDGET_TFLUSH 0x50
- #else /* !LITTLE_ENDIAN */
- #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
- #endif
- /* 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))
- /* 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_PCI_SPEED 0x00000030
- #define WIDGET_PCI_SPEED_SHFT 4
- #define WIDGET_PCI_SPEED_33MHZ 0
- #define WIDGET_PCI_SPEED_66MHZ 1
- #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
- */
- #if _LANGUAGE_C
- typedef uint32_t widgetreg_t;
- /* widget configuration registers */
- typedef volatile struct widget_cfg {
- #ifdef LITTLE_ENDIAN
- /*
- * we access these through synergy unswizzled space, so the address
- * gets twiddled (i.e. references to 0x4 actually go to 0x0 and vv.)
- * That's why we put the register first and filler second.
- */
- widgetreg_t w_id; /* 0x04 */
- widgetreg_t w_pad_0; /* 0x00 */
- widgetreg_t w_status; /* 0x0c */
- widgetreg_t w_pad_1; /* 0x08 */
- widgetreg_t w_err_upper_addr; /* 0x14 */
- widgetreg_t w_pad_2; /* 0x10 */
- widgetreg_t w_err_lower_addr; /* 0x1c */
- widgetreg_t w_pad_3; /* 0x18 */
- widgetreg_t w_control; /* 0x24 */
- widgetreg_t w_pad_4; /* 0x20 */
- widgetreg_t w_req_timeout; /* 0x2c */
- widgetreg_t w_pad_5; /* 0x28 */
- widgetreg_t w_intdest_upper_addr; /* 0x34 */
- widgetreg_t w_pad_6; /* 0x30 */
- widgetreg_t w_intdest_lower_addr; /* 0x3c */
- widgetreg_t w_pad_7; /* 0x38 */
- widgetreg_t w_err_cmd_word; /* 0x44 */
- widgetreg_t w_pad_8; /* 0x40 */
- widgetreg_t w_llp_cfg; /* 0x4c */
- widgetreg_t w_pad_9; /* 0x48 */
- widgetreg_t w_tflush; /* 0x54 */
- widgetreg_t w_pad_10; /* 0x50 */
- #else
- 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 */
- #endif /* LITTLE_ENDIAN */
- } widget_cfg_t;
- #ifdef LITTLE_ENDIAN
- typedef struct {
- unsigned other:8;
- unsigned bo:1;
- unsigned error:1;
- unsigned vbpm:1;
- unsigned gbr:1;
- unsigned ds:2;
- unsigned ct:1;
- unsigned tnum:5;
- unsigned pactyp:4;
- unsigned sidn:4;
- unsigned didn:4;
- } w_err_cmd_word_f;
- #else
- 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;
- #endif
- #ifdef LITTLE_ENDIAN
- typedef union {
- w_err_cmd_word_f f;
- widgetreg_t r;
- } w_err_cmd_word_u;
- #else
- typedef union {
- widgetreg_t r;
- w_err_cmd_word_f f;
- } w_err_cmd_word_u;
- #endif
- /* IO widget initialization function */
- typedef struct xwidget_info_s *xwidget_info_t;
- /*
- * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
- */
- #ifdef LITTLE_ENDIAN
- typedef struct xwidget_hwid_s {
- xwidget_mfg_num_t mfg_num;
- xwidget_rev_num_t rev_num;
- xwidget_part_num_t part_num;
- } *xwidget_hwid_t;
- #else
- 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;
- #endif
- /*
- * 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)))
- /* Generic crosstalk widget initialization interface */
- #if __KERNEL__
- extern int xwidget_driver_register(xwidget_part_num_t part_num,
- xwidget_mfg_num_t mfg_num,
- char *driver_prefix,
- unsigned flags);
- extern void xwidget_driver_unregister(char *driver_prefix);
- extern int xwidget_register(struct xwidget_hwid_s *hwid,
- devfs_handle_t dev,
- xwidgetnum_t id,
- devfs_handle_t master,
- xwidgetnum_t targetid,
- async_attach_t aa);
- extern int xwidget_unregister(devfs_handle_t);
- extern void xwidget_error_register(devfs_handle_t xwidget,
- error_handler_f * efunc,
- error_handler_arg_t einfo);
- extern void xwidget_reset(devfs_handle_t xwidget);
- extern void xwidget_gfx_reset(devfs_handle_t xwidget);
- extern char *xwidget_name_get(devfs_handle_t xwidget);
- /* Generic crosstalk widget information access interface */
- extern xwidget_info_t xwidget_info_chk(devfs_handle_t widget);
- extern xwidget_info_t xwidget_info_get(devfs_handle_t widget);
- extern void xwidget_info_set(devfs_handle_t widget, xwidget_info_t widget_info);
- extern devfs_handle_t xwidget_info_dev_get(xwidget_info_t xwidget_info);
- extern xwidgetnum_t xwidget_info_id_get(xwidget_info_t xwidget_info);
- extern int xwidget_info_type_get(xwidget_info_t xwidget_info);
- extern int xwidget_info_state_get(xwidget_info_t xwidget_info);
- extern devfs_handle_t xwidget_info_master_get(xwidget_info_t xwidget_info);
- extern xwidgetnum_t xwidget_info_masterid_get(xwidget_info_t xwidget_info);
- extern xwidget_part_num_t xwidget_info_part_num_get(xwidget_info_t xwidget_info);
- extern xwidget_rev_num_t xwidget_info_rev_num_get(xwidget_info_t xwidget_info);
- extern xwidget_mfg_num_t xwidget_info_mfg_num_get(xwidget_info_t xwidget_info);
- /*
- * TBD: DELETE THIS ENTIRE STRUCTURE! Equivalent is now in
- * xtalk_private.h: xwidget_info_s
- * This is just here for now because we still have a lot of
- * junk referencing it.
- * However, since nobody looks inside ...
- */
- typedef struct v_widget_s {
- unsigned v_widget_s_is_really_empty;
- #define v_widget_s_is_really_empty and using this would be a syntax error.
- } v_widget_t;
- #endif /* _KERNEL */
- #endif /* _LANGUAGE_C */
- #endif /* __ASM_SN_XTALK_XWIDGET_H__ */
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