2  * Linux ARCnet driver - COM90xx chipset (IO-mapped buffers)
5  * Written 1994-1999 by Avery Pennarun.
6  * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
40 #include <linux/io.h>
64  * IO-mapped operation routines                                             *
73 	int ioaddr = dev->base_addr;  in get_buffer_byte()
85 	int ioaddr = dev->base_addr;  in put_buffer_byte()
98 	int ioaddr = dev->base_addr;  in get_whole_buffer()
103 	while (length--)  in get_whole_buffer()
114 	int ioaddr = dev->base_addr;  in put_whole_buffer()
119 	while (length--)  in put_whole_buffer()
127 /* We cannot probe for an IO mapped card either, although we can check that
132 	int ioaddr = dev->base_addr, status;  in com90io_probe()
136 		pr_info("%s\n", "COM90xx IO-mapped mode support (by David Woodhouse et el.)");  in com90io_probe()
137 		pr_info("E-mail me if you actually test this driver, please!\n");  in com90io_probe()
141 …arc_printk(D_NORMAL, dev, "No autoprobe for IO mapped cards; you must specify the base address!\n"…  in com90io_probe()
142 		return -ENODEV;  in com90io_probe()
145 		arc_printk(D_INIT_REASONS, dev, "IO request_region %x-%x failed\n",  in com90io_probe()
146 			   ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);  in com90io_probe()
147 		return -ENXIO;  in com90io_probe()
150 		arc_printk(D_INIT_REASONS, dev, "IO address %x empty\n",  in com90io_probe()
164 	arc_printk(D_INIT_REASONS, dev, "Status after reset: %X\n", status);  in com90io_probe()
169 	arc_printk(D_INIT_REASONS, dev, "Status after reset acknowledged: %X\n",  in com90io_probe()
175 		arc_printk(D_INIT_REASONS, dev, "Eternal reset (status=%Xh)\n",  in com90io_probe()
193 	if (!dev->irq) {  in com90io_probe()
195 		 * card has just reset and the NORXflag is on until  in com90io_probe()
203 		dev->irq = probe_irq_off(airqmask);  in com90io_probe()
205 		if ((int)dev->irq <= 0) {  in com90io_probe()
215 	return -ENODEV;  in com90io_probe()
224 	int ioaddr = dev->base_addr;  in com90io_found()
228 	if (request_irq(dev->irq, arcnet_interrupt, 0,  in com90io_found()
229 			"arcnet (COM90xx-IO)", dev)) {  in com90io_found()
230 		arc_printk(D_NORMAL, dev, "Can't get IRQ %d!\n", dev->irq);  in com90io_found()
231 		return -ENODEV;  in com90io_found()
234 	if (!request_region(dev->base_addr, ARCNET_TOTAL_SIZE,  in com90io_found()
235 			    "arcnet (COM90xx-IO)")) {  in com90io_found()
236 		free_irq(dev->irq, dev);  in com90io_found()
237 		return -EBUSY;  in com90io_found()
241 	lp->card_name = "COM90xx I/O";  in com90io_found()
242 	lp->hw.command = com90io_command;  in com90io_found()
243 	lp->hw.status = com90io_status;  in com90io_found()
244 	lp->hw.intmask = com90io_setmask;  in com90io_found()
245 	lp->hw.reset = com90io_reset;  in com90io_found()
246 	lp->hw.owner = THIS_MODULE;  in com90io_found()
247 	lp->hw.copy_to_card = com90io_copy_to_card;  in com90io_found()
248 	lp->hw.copy_from_card = com90io_copy_from_card;  in com90io_found()
250 	lp->config = (0x16 | IOMAPflag) & ~ENABLE16flag;  in com90io_found()
251 	arcnet_outb(lp->config, ioaddr, COM9026_REG_RW_CONFIG);  in com90io_found()
261 		free_irq(dev->irq, dev);  in com90io_found()
262 		release_region(dev->base_addr, ARCNET_TOTAL_SIZE);  in com90io_found()
267 		   dev->dev_addr[0], dev->base_addr, dev->irq);  in com90io_found()
272 /* Do a hardware reset on the card, and set up necessary registers.
282 	short ioaddr = dev->base_addr;  in com90io_reset()
285 		   dev->name, arcnet_inb(ioaddr, COM9026_REG_R_STATUS));  in com90io_reset()
288 		/* reset the card */  in com90io_reset()
292 	/* Set the thing to IO-mapped, 8-bit  mode */  in com90io_reset()
293 	lp->config = (0x1C | IOMAPflag) & ~ENABLE16flag;  in com90io_reset()
294 	arcnet_outb(lp->config, ioaddr, COM9026_REG_RW_CONFIG);  in com90io_reset()
297 					/* clear flags & end reset */  in com90io_reset()
302 		arc_printk(D_NORMAL, dev, "reset failed: TESTvalue not present.\n");  in com90io_reset()
305 	/* enable extended (512-byte) packets */  in com90io_reset()
313 	short ioaddr = dev->base_addr;  in com90io_command()
320 	short ioaddr = dev->base_addr;  in com90io_status()
327 	short ioaddr = dev->base_addr;  in com90io_setmask()
346 static int io;			/* use the insmod io= irq= shmem= options */  variable
350 module_param_hw(io, int, ioport, 0);
353 MODULE_DESCRIPTION("ARCnet COM90xx IO mapped chipset driver");
371 	case 1:		/* IO address */  in com90io_setup()
372 		io = ints[1];  in com90io_setup()
390 		return -ENOMEM;  in com90io_init()
392 	dev->base_addr = io;  in com90io_init()
393 	dev->irq = irq;  in com90io_init()
394 	if (dev->irq == 2)  in com90io_init()
395 		dev->irq = 9;  in com90io_init()
411 	int ioaddr = dev->base_addr;  in com90io_exit()
421 	free_irq(dev->irq, dev);  in com90io_exit()
422 	release_region(dev->base_addr, ARCNET_TOTAL_SIZE);  in com90io_exit()