1 // SPDX-License-Identifier: GPL-2.0
2 /* Code to support devices on the DIO and DIO-II bus
9  *    of the next unconfigured device found that matches the given device ID.
10  *    Note that the deviceid parameter should be the encoded ID.
20  *    Return a character string describing this board [might be "" if
22  * void dio_config_board(int scode)     mark board as configured in the list
23  * void dio_unconfig_board(int scode)   mark board as no longer configured
42 		/* DIO-II range */
43 		{ .name = "DIO-II mem", .start = 0x01000000, .end = 0x1fffffff }
52 /* We associate each numeric ID with an appropriate descriptive string
61 	int id;  member
91 	= "unknown DIO board, please email linux-m68k@lists.linux-m68k.org";
93 static const char *dio_getname(int id)  in dio_getname()  argument
95 	/* return pointer to a constant string describing the board with given ID */  in dio_getname()
99 		if (names[i].id == id)  in dio_getname()
123 	int scode, id;  in dio_find()  local
147 			continue;	     /* no board present at that select code */  in dio_find()
154 			id = DIO_ENCODE_ID(prid, secid);  in dio_find()
156 			id = prid;  in dio_find()
158 		if (id == deviceid) {  in dio_find()
165 	return -1;  in dio_find()
199 		u_char prid, secid = 0;	/* primary, secondary ID bytes */  in dio_init()
220 			continue;	      /* no board present at that select code */  in dio_init()
223 		/* Found a board, allocate it an entry in the list */  in dio_init()
228 			return -ENOMEM;  in dio_init()
231 		dev->bus = &dio_bus;  in dio_init()
232 		dev->dev.parent = &dio_bus.dev;  in dio_init()
233 		dev->dev.bus = &dio_bus_type;  in dio_init()
234 		dev->dev.release = dio_dev_release;  in dio_init()
235 		dev->scode = scode;  in dio_init()
236 		dev->resource.start = pa;  in dio_init()
237 		dev->resource.end = pa + DIO_SIZE(scode, va);  in dio_init()
238 		dev_set_name(&dev->dev, "%02x", scode);  in dio_init()
240 		/* read the ID byte(s) and encode if necessary. */  in dio_init()
245 			dev->id = DIO_ENCODE_ID(prid, secid);  in dio_init()
247 			dev->id = prid;  in dio_init()
249 		dev->ipl = DIO_IPL(va);  in dio_init()
250 		strcpy(dev->name, dio_getname(dev->id));  in dio_init()
251                 printk(KERN_INFO "select code %3d: ipl %d: ID %02X", dev->scode, dev->ipl, prid);  in dio_init()
254                 printk(": %s\n", dev->name);  in dio_init()
258 		error = device_register(&dev->dev);  in dio_init()
261 			       dev->name);  in dio_init()
262 			put_device(&dev->dev);  in dio_init()
267 			dev_err(&dev->dev, "Error creating sysfs files\n");  in dio_init()
280 		return (DIOII_BASE + (scode - 132) * DIOII_DEVSIZE);  in dio_scodetophysaddr()