1 // SPDX-License-Identifier: GPL-2.0-or-later
7  *  2000-01-01	Added quirks handling for buggy hardware
8  *		Peter Denison <peterd@pnd-pc.demon.co.uk>
9  *  2000-06-14	Added isapnp_probe_devs() and isapnp_activate_dev()
11  *  2001-06-03  Added release_region calls to correspond with
14  *  2001-11-07  Added isapnp_{,un}register_driver calls along the lines
17  *  2002-06-06  Made the use of dma channel 0 configurable
19  *  2002-10-06  Ported to PnP Layer - Adam Belay <ambx1@neo.rr.com>
20  *  2003-08-11	Resource Management Updates - Adam Belay <ambx1@neo.rr.com>
79 #define ISAPNP_CFG_PORT		0x60	/* 8 * word */
85  * See PNP-ISA-v1.0a.pdf, Appendix A.
88 #define ISAPNP_MAX_PORT		8
126 	val = (val << 8) + isapnp_read_byte(idx + 1);  in isapnp_read_word()
138 	isapnp_write_byte(idx, val >> 8);  in isapnp_write_word()
160 /* place all pnp cards in wait-for-key state */
238 	return -1;  in isapnp_next_rdp()
267 		return -1;  in isapnp_isolate_rdp_select()
292 		return -1;  in isapnp_isolate()
296 			data = read_data() << 8;  in isapnp_isolate()
308 			data = read_data() << 8;  in isapnp_isolate()
313 				chksum |= (1 << (i - 65));  in isapnp_isolate()
331 				return -1;  in isapnp_isolate()
356 		return -1;  in isapnp_read_tag()
360 		*size = (tmp[1] << 8) | tmp[0];  in isapnp_read_tag()
366 		return -1;  in isapnp_read_tag()
387 	char id[8];  in isapnp_parse_device()
390 	eisa_id = tmp[0] | tmp[1] << 8 | tmp[2] << 16 | tmp[3] << 24;  in isapnp_parse_device()
397 	dev->card = card;  in isapnp_parse_device()
398 	dev->capabilities |= PNP_CONFIGURABLE;  in isapnp_parse_device()
399 	dev->capabilities |= PNP_READ;  in isapnp_parse_device()
400 	dev->capabilities |= PNP_WRITE;  in isapnp_parse_device()
401 	dev->capabilities |= PNP_DISABLE;  in isapnp_parse_device()
419 	bits = (tmp[1] << 8) | tmp[0];  in isapnp_parse_irq_resource()
455 	min = (tmp[2] << 8) | tmp[1];  in isapnp_parse_port_resource()
456 	max = (tmp[4] << 8) | tmp[3];  in isapnp_parse_port_resource()
475 	base = (tmp[1] << 8) | tmp[0];  in isapnp_parse_fixed_port_resource()
493 	min = ((tmp[2] << 8) | tmp[1]) << 8;  in isapnp_parse_mem_resource()
494 	max = ((tmp[4] << 8) | tmp[3]) << 8;  in isapnp_parse_mem_resource()
495 	align = (tmp[6] << 8) | tmp[5];  in isapnp_parse_mem_resource()
496 	len = ((tmp[8] << 8) | tmp[7]) << 8;  in isapnp_parse_mem_resource()
503  *  Add 32-bit memory resource to resources list.
514 	min = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];  in isapnp_parse_mem32_resource()
515 	max = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];  in isapnp_parse_mem32_resource()
516 	align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9];  in isapnp_parse_mem32_resource()
517 	len = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13];  in isapnp_parse_mem32_resource()
524  *  Add 32-bit fixed memory resource to resources list.
535 	base = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];  in isapnp_parse_fixed_mem32_resource()
536 	len = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];  in isapnp_parse_fixed_mem32_resource()
549 		    *size >= name_max ? (name_max - 1) : *size;  in isapnp_parse_name()
552 		*size -= size1;  in isapnp_parse_name()
555 		while (size1 > 0 && name[--size1] == ' ')  in isapnp_parse_name()
571 	char id[8];  in isapnp_create_device()
602 				eisa_id = tmp[0] | tmp[1] << 8 |  in isapnp_create_device()
660 			isapnp_parse_name(dev->name, sizeof(dev->name), &size);  in isapnp_create_device()
686 			dev_err(&dev->dev, "unknown tag %#x (card %i), "  in isapnp_create_device()
687 				"ignored\n", type, card->number);  in isapnp_create_device()
712 			card->pnpver = tmp[0];  in isapnp_parse_resource_map()
713 			card->productver = tmp[1];  in isapnp_parse_resource_map()
726 			isapnp_parse_name(card->name, sizeof(card->name),  in isapnp_parse_resource_map()
740 			dev_err(&card->dev, "unknown tag %#x, ignored\n",  in isapnp_parse_resource_map()
758 	char id[8];  in isapnp_build_device_list()
765 		eisa_id = header[0] | header[1] << 8 |  in isapnp_build_device_list()
772 		INIT_LIST_HEAD(&card->devices);  in isapnp_build_device_list()
773 		card->serial =  in isapnp_build_device_list()
774 		    (header[7] << 24) | (header[6] << 16) | (header[5] << 8) |  in isapnp_build_device_list()
779 			dev_err(&card->dev, "invalid checksum %#x\n",  in isapnp_build_device_list()
781 		card->checksum = isapnp_checksum_value;  in isapnp_build_device_list()
798 		if (card->protocol == &isapnp_protocol)  in isapnp_present()
807 		return -EINVAL;  in isapnp_cfg_begin()
816 	/*   Jens Thoms Toerring <[email protected]-berlin.de> */  in isapnp_cfg_begin()
852 	pnp_dbg(&dev->dev, "get resources\n");  in isapnp_get_resources()
854 	isapnp_cfg_begin(dev->card->number, dev->number);  in isapnp_get_resources()
855 	dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);  in isapnp_get_resources()
856 	if (!dev->active)  in isapnp_get_resources()
865 		ret = isapnp_read_word(ISAPNP_CFG_MEM + (i << 3)) << 8;  in isapnp_get_resources()
870 		ret = isapnp_read_word(ISAPNP_CFG_IRQ + (i << 1)) >> 8;  in isapnp_get_resources()
890 	pnp_dbg(&dev->dev, "set resources\n");  in isapnp_set_resources()
891 	isapnp_cfg_begin(dev->card->number, dev->number);  in isapnp_set_resources()
892 	dev->active = 1;  in isapnp_set_resources()
896 			pnp_dbg(&dev->dev, "  set io  %d to %#llx\n",  in isapnp_set_resources()
897 				tmp, (unsigned long long) res->start);  in isapnp_set_resources()
899 					  res->start);  in isapnp_set_resources()
905 			int irq = res->start;  in isapnp_set_resources()
908 			pnp_dbg(&dev->dev, "  set irq %d to %d\n", tmp, irq);  in isapnp_set_resources()
915 			pnp_dbg(&dev->dev, "  set dma %d to %lld\n",  in isapnp_set_resources()
916 				tmp, (unsigned long long) res->start);  in isapnp_set_resources()
917 			isapnp_write_byte(ISAPNP_CFG_DMA + tmp, res->start);  in isapnp_set_resources()
923 			pnp_dbg(&dev->dev, "  set mem %d to %#llx\n",  in isapnp_set_resources()
924 				tmp, (unsigned long long) res->start);  in isapnp_set_resources()
926 					  (res->start >> 8) & 0xffff);  in isapnp_set_resources()
930 	isapnp_activate(dev->number);  in isapnp_set_resources()
937 	if (!dev->active)  in isapnp_disable_resources()
938 		return -EINVAL;  in isapnp_disable_resources()
939 	isapnp_cfg_begin(dev->card->number, dev->number);  in isapnp_disable_resources()
940 	isapnp_deactivate(dev->number);  in isapnp_disable_resources()
941 	dev->active = 0;  in isapnp_disable_resources()
965 		return -EINVAL;  in isapnp_init()
971 		return -EBUSY;  in isapnp_init()
981 		return -EBUSY;  in isapnp_init()
985 		return -EBUSY;  in isapnp_init()
1003 			return -EBUSY;  in isapnp_init()
1026 			dev_info(&card->dev, "card '%s'\n",  in isapnp_init()
1027 			       card->name[0] ? card->name : "unknown");  in isapnp_init()
1031 				dev_info(&card->dev, "device '%s'\n",  in isapnp_init()
1032 				       dev->name[0] ? dev->name : "unknown");  in isapnp_init()