Annotation of sys/dev/i2o/iopvar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: iopvar.h,v 1.7 2002/03/14 01:26:53 millert Exp $ */
2: /* $NetBSD: iopvar.h,v 1.5 2001/03/20 13:01:49 ad Exp $ */
3:
4: /*-
5: * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Andrew Doran.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #ifndef _I2O_IOPVAR_H_
41: #define _I2O_IOPVAR_H_
42:
43: /*
44: * Transfer descriptor.
45: */
46: struct iop_xfer {
47: bus_dmamap_t ix_map;
48: u_int ix_size;
49: u_int ix_flags;
50: };
51: #define IX_IN 0x0001 /* Data transfer from IOP */
52: #define IX_OUT 0x0002 /* Data transfer to IOP */
53:
54: /*
55: * Message wrapper.
56: */
57: struct iop_msg {
58: SLIST_ENTRY(iop_msg) im_chain; /* Next free message */
59: u_int im_flags; /* Control flags */
60: u_int im_tctx; /* Transaction context */
61: void *im_dvcontext; /* Un*x device context */
62: struct i2o_reply *im_rb; /* Reply buffer */
63: u_int im_reqstatus; /* Status from reply */
64: struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS];
65: };
66: #define IM_SYSMASK 0x00ff
67: #define IM_REPLIED 0x0001 /* Message has been replied to */
68: #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */
69: #define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */
70: #define IM_DISCARD 0x0008 /* Discard message wrapper once sent */
71: #define IM_FAIL 0x0010 /* Transaction error returned */
72:
73: #define IM_USERMASK 0xff00
74: #define IM_WAIT 0x0100 /* Wait (sleep) for completion */
75: #define IM_POLL 0x0200 /* Wait (poll) for completion */
76: #define IM_NOSTATUS 0x0400 /* Don't check status if waiting */
77: #define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */
78:
79: struct iop_initiator {
80: LIST_ENTRY(iop_initiator) ii_list;
81: LIST_ENTRY(iop_initiator) ii_hash;
82:
83: void (*ii_intr)(struct device *, struct iop_msg *, void *);
84: int (*ii_reconfig)(struct device *);
85: void (*ii_adjqparam)(struct device *, int);
86:
87: struct device *ii_dv;
88: int ii_flags;
89: int ii_ictx; /* Initiator context */
90: int ii_tid;
91: };
92: #define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */
93: #define II_CONFIGURED 0x0002 /* Already configured */
94: #define II_UTILITY 0x0004 /* Utility initiator (not a real device) */
95:
96: #define IOP_ICTX 0
97: #define IOP_INIT_CODE 0x80
98:
99: /*
100: * Parameter group op (for async parameter retrievals).
101: */
102: struct iop_pgop {
103: struct i2o_param_op_list_header olh;
104: struct i2o_param_op_all_template oat;
105: } __attribute__ ((__packed__));
106:
107: /*
108: * Per-IOP context.
109: */
110: struct iop_softc {
111: struct device sc_dv; /* generic device data */
112: bus_space_handle_t sc_ioh; /* bus space handle */
113: bus_space_tag_t sc_iot; /* bus space tag */
114: bus_dma_tag_t sc_dmat; /* bus DMA tag */
115: void *sc_ih; /* interrupt handler cookie */
116: struct lock sc_conflock; /* autoconfiguration lock */
117: bus_addr_t sc_memaddr; /* register window address */
118: bus_size_t sc_memsize; /* register window size */
119:
120: struct i2o_hrt *sc_hrt; /* hardware resource table */
121: struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */
122: struct i2o_lct *sc_lct; /* logical configuration table */
123: int sc_nlctent; /* number of LCT entries */
124: int sc_flags; /* IOP-wide flags */
125: int sc_maxib;
126: int sc_maxob;
127: int sc_curib;
128: u_int32_t sc_chgind; /* autoconfig vs. LCT change ind. */
129: LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */
130: int sc_nii;
131: int sc_nuii;
132: struct iop_initiator sc_eventii;/* IOP event handler */
133: struct proc *sc_reconf_proc;/* reconfiguration process */
134: struct iop_msg *sc_ims;
135: SLIST_HEAD(, iop_msg) sc_im_freelist;
136: caddr_t sc_ptb;
137: bus_dmamap_t sc_scr_dmamap; /* Scratch DMA map */
138: bus_dma_segment_t sc_scr_seg[1];/* Scratch DMA segment */
139: caddr_t sc_scr; /* Scratch memory va */
140:
141: /*
142: * Reply queue.
143: */
144: bus_dmamap_t sc_rep_dmamap;
145: int sc_rep_size;
146: bus_addr_t sc_rep_phys;
147: caddr_t sc_rep;
148:
149: bus_space_tag_t sc_bus_memt;
150: bus_space_tag_t sc_bus_iot;
151:
152: struct i2o_status sc_status; /* status */
153: };
154: #define IOP_OPEN 0x01 /* Device interface open */
155: #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */
156: #define IOP_ONLINE 0x04 /* Can use ioctl interface */
157:
158: #define IOPCF_TID 0
159: #define IOPCF_TID_DEFAULT -1
160:
161: struct iop_attach_args {
162: int ia_class; /* device class */
163: int ia_tid; /* target ID */
164: };
165: #define iopcf_tid cf_loc[IOPCF_TID] /* TID */
166:
167: void iop_init(struct iop_softc *, const char *);
168: int iop_intr(void *);
169: int iop_lct_get(struct iop_softc *);
170: int iop_param_op(struct iop_softc *, int, struct iop_initiator *, int,
171: int, void *, size_t);
172: int iop_print_ident(struct iop_softc *, int);
173: int iop_simple_cmd(struct iop_softc *, int, int, int, int, int);
174: void iop_strvis(struct iop_softc *, const char *, int, char *, int);
175:
176: void iop_initiator_register(struct iop_softc *, struct iop_initiator *);
177: void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *);
178:
179: struct iop_msg *iop_msg_alloc(struct iop_softc *, struct iop_initiator *,
180: int);
181: void iop_msg_free(struct iop_softc *, struct iop_msg *);
182: int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *,
183: size_t, int);
184: int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *,
185: void *, int, int);
186: int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int);
187: void iop_msg_unmap(struct iop_softc *, struct iop_msg *);
188:
189: int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int,
190: int);
191: int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int);
192: int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int);
193:
194: #endif /* !_I2O_IOPVAR_H_ */
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