2 * Linux driver attachment glue for aic7770 based controllers.
4 * Copyright (c) 2000-2003 Adaptec Inc.
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39 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $
42 #include "aic7xxx_osm.h"
44 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
45 #include <linux/device.h>
46 #include <linux/eisa.h>
48 #define EISA_MFCTR_CHAR0(ID) (char)(((ID>>26) & 0x1F) | '@') /* Bits 26-30 */
49 #define EISA_MFCTR_CHAR1(ID) (char)(((ID>>21) & 0x1F) | '@') /* Bits 21-25 */
50 #define EISA_MFCTR_CHAR2(ID) (char)(((ID>>16) & 0x1F) | '@') /* Bits 16-20 */
51 #define EISA_PRODUCT_ID(ID) (short)((ID>>4) & 0xFFF) /* Bits 4-15 */
52 #define EISA_REVISION_ID(ID) (uint8_t)(ID & 0x0F) /* Bits 0-3 */
54 static int aic7770_eisa_dev_probe(struct device *dev);
55 static int aic7770_eisa_dev_remove(struct device *dev);
56 static struct eisa_driver aic7770_driver = {
59 .probe = aic7770_eisa_dev_probe,
60 .remove = aic7770_eisa_dev_remove,
64 typedef struct device *aic7770_dev_t;
70 typedef void *aic7770_dev_t;
73 static int aic7770_linux_config(struct aic7770_identity *entry,
74 aic7770_dev_t dev, u_int eisaBase);
77 ahc_linux_eisa_init(void)
79 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
80 struct eisa_device_id *eid;
81 struct aic7770_identity *id;
84 if (aic7xxx_probe_eisa_vl == 0)
88 * Linux requires the EISA IDs to be specified in
89 * the EISA ID string format. Perform the conversion
90 * and setup a table with a NUL terminal entry.
92 aic7770_driver.id_table = malloc(sizeof(struct eisa_device_id) *
93 (ahc_num_aic7770_devs + 1),
95 if (aic7770_driver.id_table == NULL)
98 for (eid = (struct eisa_device_id *)aic7770_driver.id_table,
99 id = aic7770_ident_table, i = 0;
100 i < ahc_num_aic7770_devs; eid++, id++, i++) {
102 sprintf(eid->sig, "%c%c%c%03X%01X",
103 EISA_MFCTR_CHAR0(id->full_id),
104 EISA_MFCTR_CHAR1(id->full_id),
105 EISA_MFCTR_CHAR2(id->full_id),
106 EISA_PRODUCT_ID(id->full_id),
107 EISA_REVISION_ID(id->full_id));
108 eid->driver_data = i;
112 return eisa_driver_register(&aic7770_driver);
113 #else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
114 struct aic7770_identity *entry;
120 if (aic7xxx_probe_eisa_vl == 0)
123 eisaBase = 0x1000 + AHC_EISA_SLOT_OFFSET;
124 for (slot = 1; slot < NUMSLOTS; eisaBase+=0x1000, slot++) {
128 if (request_region(eisaBase, AHC_EISA_IOSIZE, "aic7xxx") == 0)
132 id_size = sizeof(eisa_id);
133 for (i = 0; i < 4; i++) {
134 /* VLcards require priming*/
135 outb(0x80 + i, eisaBase + IDOFFSET);
136 eisa_id |= inb(eisaBase + IDOFFSET + i)
137 << ((id_size-i-1) * 8);
139 release_region(eisaBase, AHC_EISA_IOSIZE);
140 if (eisa_id & 0x80000000)
141 continue; /* no EISA card in slot */
143 entry = aic7770_find_device(eisa_id);
145 aic7770_linux_config(entry, NULL, eisaBase);
154 ahc_linux_eisa_exit(void)
156 if(aic7xxx_probe_eisa_vl != 0 && aic7770_driver.id_table != NULL) {
157 eisa_driver_unregister(&aic7770_driver);
158 free(aic7770_driver.id_table, M_DEVBUF);
163 aic7770_linux_config(struct aic7770_identity *entry, aic7770_dev_t dev,
166 struct ahc_softc *ahc;
172 * Allocate a softc for this card and
173 * set it up for attachment by our
174 * common detect routine.
176 sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
177 name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
181 ahc = ahc_alloc(&aic7xxx_driver_template, name);
184 error = aic7770_config(ahc, entry, eisaBase);
190 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
191 dev->driver_data = (void *)ahc;
192 if (aic7xxx_detect_complete)
193 error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
199 aic7770_map_registers(struct ahc_softc *ahc, u_int port)
202 * Lock out other contenders for our i/o space.
204 if (request_region(port, AHC_EISA_IOSIZE, "aic7xxx") == 0)
206 ahc->tag = BUS_SPACE_PIO;
207 ahc->bsh.ioport = port;
212 aic7770_map_int(struct ahc_softc *ahc, u_int irq)
218 if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)
221 error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);
223 ahc->platform_data->irq = irq;
228 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
230 aic7770_eisa_dev_probe(struct device *dev)
232 struct eisa_device *edev;
234 edev = to_eisa_device(dev);
235 return (aic7770_linux_config(aic7770_ident_table + edev->id.driver_data,
236 dev, edev->base_addr+AHC_EISA_SLOT_OFFSET));
240 aic7770_eisa_dev_remove(struct device *dev)
242 struct ahc_softc *ahc;
246 * We should be able to just perform
247 * the free directly, but check our
248 * list for extra sanity.
251 ahc = ahc_find_softc((struct ahc_softc *)dev->driver_data);
256 ahc_intr_enable(ahc, FALSE);