1 | /* |
2 | * Linux driver attachment glue for aic7770 based controllers. |
3 | * |
4 | * Copyright (c) 2000-2003 Adaptec Inc. |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions, and the following disclaimer, |
12 | * without modification. |
13 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
14 | * substantially similar to the "NO WARRANTY" disclaimer below |
15 | * ("Disclaimer") and any redistribution must be conditioned upon |
16 | * including a substantially similar Disclaimer requirement for further |
17 | * binary redistribution. |
18 | * 3. Neither the names of the above-listed copyright holders nor the names |
19 | * of any contributors may be used to endorse or promote products derived |
20 | * from this software without specific prior written permission. |
21 | * |
22 | * Alternatively, this software may be distributed under the terms of the |
23 | * GNU General Public License ("GPL") version 2 as published by the Free |
24 | * Software Foundation. |
25 | * |
26 | * NO WARRANTY |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
31 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
35 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
36 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
37 | * POSSIBILITY OF SUCH DAMAGES. |
38 | * |
39 | * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $ |
40 | */ |
41 | |
42 | #include "aic7xxx_osm.h" |
43 | |
44 | #include <linux/device.h> |
45 | #include <linux/eisa.h> |
46 | |
47 | int |
48 | aic7770_map_registers(struct ahc_softc *ahc, u_int port) |
49 | { |
50 | /* |
51 | * Lock out other contenders for our i/o space. |
52 | */ |
53 | if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx" )) |
54 | return (ENOMEM); |
55 | ahc->tag = BUS_SPACE_PIO; |
56 | ahc->bsh.ioport = port; |
57 | return (0); |
58 | } |
59 | |
60 | int |
61 | aic7770_map_int(struct ahc_softc *ahc, u_int irq) |
62 | { |
63 | int error; |
64 | int shared; |
65 | |
66 | shared = 0; |
67 | if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0) |
68 | shared = IRQF_SHARED; |
69 | |
70 | error = request_irq(irq, handler: ahc_linux_isr, flags: shared, name: "aic7xxx" , dev: ahc); |
71 | if (error == 0) |
72 | ahc->platform_data->irq = irq; |
73 | |
74 | return (-error); |
75 | } |
76 | |
77 | static int |
78 | aic7770_probe(struct device *dev) |
79 | { |
80 | struct eisa_device *edev = to_eisa_device(dev); |
81 | u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET; |
82 | struct ahc_softc *ahc; |
83 | char buf[80]; |
84 | char *name; |
85 | int error; |
86 | |
87 | sprintf(buf, fmt: "ahc_eisa:%d" , eisaBase >> 12); |
88 | name = kstrdup(s: buf, GFP_ATOMIC); |
89 | if (name == NULL) |
90 | return (ENOMEM); |
91 | ahc = ahc_alloc(platform_arg: &aic7xxx_driver_template, name); |
92 | if (ahc == NULL) |
93 | return (ENOMEM); |
94 | ahc->dev = dev; |
95 | error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data, |
96 | port: eisaBase); |
97 | if (error != 0) { |
98 | ahc->bsh.ioport = 0; |
99 | ahc_free(ahc); |
100 | return (error); |
101 | } |
102 | |
103 | dev_set_drvdata(dev, data: ahc); |
104 | |
105 | error = ahc_linux_register_host(ahc, &aic7xxx_driver_template); |
106 | return (error); |
107 | } |
108 | |
109 | static int |
110 | aic7770_remove(struct device *dev) |
111 | { |
112 | struct ahc_softc *ahc = dev_get_drvdata(dev); |
113 | u_long s; |
114 | |
115 | if (ahc->platform_data && ahc->platform_data->host) |
116 | scsi_remove_host(ahc->platform_data->host); |
117 | |
118 | ahc_lock(ahc, flags: &s); |
119 | ahc_intr_enable(ahc, FALSE); |
120 | ahc_unlock(ahc, flags: &s); |
121 | |
122 | ahc_free(ahc); |
123 | return 0; |
124 | } |
125 | |
126 | static struct eisa_device_id aic7770_ids[] = { |
127 | { "ADP7771" , 0 }, /* AHA 274x */ |
128 | { "ADP7756" , 1 }, /* AHA 284x BIOS enabled */ |
129 | { "ADP7757" , 2 }, /* AHA 284x BIOS disabled */ |
130 | { "ADP7782" , 3 }, /* AHA 274x Olivetti OEM */ |
131 | { "ADP7783" , 4 }, /* AHA 274x Olivetti OEM (Differential) */ |
132 | { "ADP7770" , 5 }, /* AIC7770 generic */ |
133 | { "" } |
134 | }; |
135 | MODULE_DEVICE_TABLE(eisa, aic7770_ids); |
136 | |
137 | static struct eisa_driver aic7770_driver = { |
138 | .id_table = aic7770_ids, |
139 | .driver = { |
140 | .name = "aic7xxx" , |
141 | .probe = aic7770_probe, |
142 | .remove = aic7770_remove, |
143 | } |
144 | }; |
145 | |
146 | int |
147 | ahc_linux_eisa_init(void) |
148 | { |
149 | return eisa_driver_register(edrv: &aic7770_driver); |
150 | } |
151 | |
152 | void |
153 | ahc_linux_eisa_exit(void) |
154 | { |
155 | eisa_driver_unregister(edrv: &aic7770_driver); |
156 | } |
157 | |