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aic79xx_inline.h
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1 /*
2  * Inline routines shareable across OS platforms.
3  *
4  * Copyright (c) 1994-2001 Justin T. Gibbs.
5  * Copyright (c) 2000-2003 Adaptec Inc.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions, and the following disclaimer,
13  * without modification.
14  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
15  * substantially similar to the "NO WARRANTY" disclaimer below
16  * ("Disclaimer") and any redistribution must be conditioned upon
17  * including a substantially similar Disclaimer requirement for further
18  * binary redistribution.
19  * 3. Neither the names of the above-listed copyright holders nor the names
20  * of any contributors may be used to endorse or promote products derived
21  * from this software without specific prior written permission.
22  *
23  * Alternatively, this software may be distributed under the terms of the
24  * GNU General Public License ("GPL") version 2 as published by the Free
25  * Software Foundation.
26  *
27  * NO WARRANTY
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
31  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
37  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38  * POSSIBILITY OF SUCH DAMAGES.
39  *
40  * $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#59 $
41  *
42  * $FreeBSD$
43  */
44 
45 #ifndef _AIC79XX_INLINE_H_
46 #define _AIC79XX_INLINE_H_
47 
48 /******************************** Debugging ***********************************/
49 static inline char *ahd_name(struct ahd_softc *ahd);
50 
51 static inline char *ahd_name(struct ahd_softc *ahd)
52 {
53  return (ahd->name);
54 }
55 
56 /************************ Sequencer Execution Control *************************/
57 static inline void ahd_known_modes(struct ahd_softc *ahd,
58  ahd_mode src, ahd_mode dst);
59 static inline ahd_mode_state ahd_build_mode_state(struct ahd_softc *ahd,
60  ahd_mode src,
61  ahd_mode dst);
62 static inline void ahd_extract_mode_state(struct ahd_softc *ahd,
63  ahd_mode_state state,
64  ahd_mode *src, ahd_mode *dst);
65 
66 void ahd_set_modes(struct ahd_softc *ahd, ahd_mode src,
67  ahd_mode dst);
68 ahd_mode_state ahd_save_modes(struct ahd_softc *ahd);
69 void ahd_restore_modes(struct ahd_softc *ahd,
70  ahd_mode_state state);
71 int ahd_is_paused(struct ahd_softc *ahd);
72 void ahd_pause(struct ahd_softc *ahd);
73 void ahd_unpause(struct ahd_softc *ahd);
74 
75 static inline void
76 ahd_known_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
77 {
78  ahd->src_mode = src;
79  ahd->dst_mode = dst;
80  ahd->saved_src_mode = src;
81  ahd->saved_dst_mode = dst;
82 }
83 
84 static inline ahd_mode_state
85 ahd_build_mode_state(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
86 {
87  return ((src << SRC_MODE_SHIFT) | (dst << DST_MODE_SHIFT));
88 }
89 
90 static inline void
91 ahd_extract_mode_state(struct ahd_softc *ahd, ahd_mode_state state,
92  ahd_mode *src, ahd_mode *dst)
93 {
94  *src = (state & SRC_MODE) >> SRC_MODE_SHIFT;
95  *dst = (state & DST_MODE) >> DST_MODE_SHIFT;
96 }
97 
98 /*********************** Scatter Gather List Handling *************************/
99 void *ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
100  void *sgptr, dma_addr_t addr,
101  bus_size_t len, int last);
102 
103 /************************** Memory mapping routines ***************************/
104 static inline size_t ahd_sg_size(struct ahd_softc *ahd);
105 
106 void ahd_sync_sglist(struct ahd_softc *ahd,
107  struct scb *scb, int op);
108 
109 static inline size_t ahd_sg_size(struct ahd_softc *ahd)
110 {
111  if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0)
112  return (sizeof(struct ahd_dma64_seg));
113  return (sizeof(struct ahd_dma_seg));
114 }
115 
116 /*********************** Miscellaneous Support Functions ***********************/
117 struct ahd_initiator_tinfo *
118  ahd_fetch_transinfo(struct ahd_softc *ahd,
119  char channel, u_int our_id,
120  u_int remote_id,
121  struct ahd_tmode_tstate **tstate);
122 uint16_t
123  ahd_inw(struct ahd_softc *ahd, u_int port);
124 void ahd_outw(struct ahd_softc *ahd, u_int port,
125  u_int value);
126 uint32_t
127  ahd_inl(struct ahd_softc *ahd, u_int port);
128 void ahd_outl(struct ahd_softc *ahd, u_int port,
129  uint32_t value);
130 uint64_t
131  ahd_inq(struct ahd_softc *ahd, u_int port);
132 void ahd_outq(struct ahd_softc *ahd, u_int port,
133  uint64_t value);
134 u_int ahd_get_scbptr(struct ahd_softc *ahd);
135 void ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr);
136 u_int ahd_inb_scbram(struct ahd_softc *ahd, u_int offset);
137 u_int ahd_inw_scbram(struct ahd_softc *ahd, u_int offset);
138 struct scb *
139  ahd_lookup_scb(struct ahd_softc *ahd, u_int tag);
140 void ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb);
141 
142 static inline uint8_t *ahd_get_sense_buf(struct ahd_softc *ahd,
143  struct scb *scb);
144 static inline uint32_t ahd_get_sense_bufaddr(struct ahd_softc *ahd,
145  struct scb *scb);
146 
147 #if 0 /* unused */
148 
149 #define AHD_COPY_COL_IDX(dst, src) \
150 do { \
151  dst->hscb->scsiid = src->hscb->scsiid; \
152  dst->hscb->lun = src->hscb->lun; \
153 } while (0)
154 
155 #endif
156 
157 static inline uint8_t *
158 ahd_get_sense_buf(struct ahd_softc *ahd, struct scb *scb)
159 {
160  return (scb->sense_data);
161 }
162 
163 static inline uint32_t
164 ahd_get_sense_bufaddr(struct ahd_softc *ahd, struct scb *scb)
165 {
166  return (scb->sense_busaddr);
167 }
168 
169 /************************** Interrupt Processing ******************************/
170 int ahd_intr(struct ahd_softc *ahd);
171 
172 #endif /* _AIC79XX_INLINE_H_ */
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