diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/aic7xxx/aic7xxx_93cx6.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_93cx6.h')
-rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_93cx6.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_93cx6.h b/drivers/scsi/aic7xxx/aic7xxx_93cx6.h new file mode 100644 index 000000000000..859c43ccdd46 --- /dev/null +++ b/drivers/scsi/aic7xxx/aic7xxx_93cx6.h | |||
@@ -0,0 +1,102 @@ | |||
1 | /* | ||
2 | * Interface to the 93C46/56 serial EEPROM that is used to store BIOS | ||
3 | * settings for the aic7xxx based adaptec SCSI controllers. It can | ||
4 | * also be used for 93C26 and 93C06 serial EEPROMS. | ||
5 | * | ||
6 | * Copyright (c) 1994, 1995, 2000 Justin T. Gibbs. | ||
7 | * All rights reserved. | ||
8 | * | ||
9 | * Redistribution and use in source and binary forms, with or without | ||
10 | * modification, are permitted provided that the following conditions | ||
11 | * are met: | ||
12 | * 1. Redistributions of source code must retain the above copyright | ||
13 | * notice, this list of conditions, and the following disclaimer, | ||
14 | * without modification. | ||
15 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
16 | * substantially similar to the "NO WARRANTY" disclaimer below | ||
17 | * ("Disclaimer") and any redistribution must be conditioned upon | ||
18 | * including a substantially similar Disclaimer requirement for further | ||
19 | * binary redistribution. | ||
20 | * 3. Neither the names of the above-listed copyright holders nor the names | ||
21 | * of any contributors may be used to endorse or promote products derived | ||
22 | * from this software without specific prior written permission. | ||
23 | * | ||
24 | * Alternatively, this software may be distributed under the terms of the | ||
25 | * GNU General Public License ("GPL") version 2 as published by the Free | ||
26 | * Software Foundation. | ||
27 | * | ||
28 | * NO WARRANTY | ||
29 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
30 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
31 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
32 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
33 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
37 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
38 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
39 | * POSSIBILITY OF SUCH DAMAGES. | ||
40 | * | ||
41 | * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.h#12 $ | ||
42 | * | ||
43 | * $FreeBSD$ | ||
44 | */ | ||
45 | #ifndef _AIC7XXX_93CX6_H_ | ||
46 | #define _AIC7XXX_93CX6_H_ | ||
47 | |||
48 | typedef enum { | ||
49 | C46 = 6, | ||
50 | C56_66 = 8 | ||
51 | } seeprom_chip_t; | ||
52 | |||
53 | struct seeprom_descriptor { | ||
54 | struct ahc_softc *sd_ahc; | ||
55 | u_int sd_control_offset; | ||
56 | u_int sd_status_offset; | ||
57 | u_int sd_dataout_offset; | ||
58 | seeprom_chip_t sd_chip; | ||
59 | uint16_t sd_MS; | ||
60 | uint16_t sd_RDY; | ||
61 | uint16_t sd_CS; | ||
62 | uint16_t sd_CK; | ||
63 | uint16_t sd_DO; | ||
64 | uint16_t sd_DI; | ||
65 | }; | ||
66 | |||
67 | /* | ||
68 | * This function will read count 16-bit words from the serial EEPROM and | ||
69 | * return their value in buf. The port address of the aic7xxx serial EEPROM | ||
70 | * control register is passed in as offset. The following parameters are | ||
71 | * also passed in: | ||
72 | * | ||
73 | * CS - Chip select | ||
74 | * CK - Clock | ||
75 | * DO - Data out | ||
76 | * DI - Data in | ||
77 | * RDY - SEEPROM ready | ||
78 | * MS - Memory port mode select | ||
79 | * | ||
80 | * A failed read attempt returns 0, and a successful read returns 1. | ||
81 | */ | ||
82 | |||
83 | #define SEEPROM_INB(sd) \ | ||
84 | ahc_inb(sd->sd_ahc, sd->sd_control_offset) | ||
85 | #define SEEPROM_OUTB(sd, value) \ | ||
86 | do { \ | ||
87 | ahc_outb(sd->sd_ahc, sd->sd_control_offset, value); \ | ||
88 | ahc_flush_device_writes(sd->sd_ahc); \ | ||
89 | } while(0) | ||
90 | |||
91 | #define SEEPROM_STATUS_INB(sd) \ | ||
92 | ahc_inb(sd->sd_ahc, sd->sd_status_offset) | ||
93 | #define SEEPROM_DATA_INB(sd) \ | ||
94 | ahc_inb(sd->sd_ahc, sd->sd_dataout_offset) | ||
95 | |||
96 | int ahc_read_seeprom(struct seeprom_descriptor *sd, uint16_t *buf, | ||
97 | u_int start_addr, u_int count); | ||
98 | int ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf, | ||
99 | u_int start_addr, u_int count); | ||
100 | int ahc_verify_cksum(struct seeprom_config *sc); | ||
101 | |||
102 | #endif /* _AIC7XXX_93CX6_H_ */ | ||