3  * SDL Inc. RISCom/N2 synchronous serial card driver for Linux
91 	struct card_s *card;  member
123 #define sca_reg(reg, card) (0x8000 | (card)->io | \  argument
125 #define sca_in(reg, card)		inb(sca_reg(reg, card))  argument
126 #define sca_out(value, reg, card)	outb(value, sca_reg(reg, card))  argument
127 #define sca_inw(reg, card)		inw(sca_reg(reg, card))  argument
128 #define sca_outw(value, reg, card)	outw(value, sca_reg(reg, card))  argument
130 #define port_to_card(port)		((port)->card)
133 #define winsize(card)			(USE_WINDOWSIZE)  argument
134 #define winbase(card)      	     	((card)->winbase)  argument
135 #define get_port(card, port)		((card)->ports[port].valid ? \  argument
136 					 &(card)->ports[port] : NULL)
138 static __inline__ u8 sca_get_page(card_t *card)  in sca_get_page()  argument
140 	return inb(card->io + N2_PSR) & PSR_PAGEBITS;  in sca_get_page()
143 static __inline__ void openwin(card_t *card, u8 page)  in openwin()  argument
145 	u8 psr = inb(card->io + N2_PSR);  in openwin()
147 	outb((psr & ~PSR_PAGEBITS) | page, card->io + N2_PSR);  in openwin()
154 	card_t *card = port->card;  in n2_set_iface()  local
155 	int io = card->io;  in n2_set_iface()
189 	sca_out(rxs, msci + RXS, card);  in n2_set_iface()
190 	sca_out(txs, msci + TXS, card);  in n2_set_iface()
197 	int io = port->card->io;  in n2_open()
219 	int io = port->card->io;  in n2_close()
285 static void n2_destroy_card(card_t *card)  in n2_destroy_card()  argument
290 		if (card->ports[cnt].card) {  in n2_destroy_card()
291 			struct net_device *dev = port_to_dev(&card->ports[cnt]);  in n2_destroy_card()
296 	if (card->irq)  in n2_destroy_card()
297 		free_irq(card->irq, card);  in n2_destroy_card()
299 	if (card->winbase) {  in n2_destroy_card()
300 		iounmap(card->winbase);  in n2_destroy_card()
301 		release_mem_region(card->phy_winbase, USE_WINDOWSIZE);  in n2_destroy_card()
304 	if (card->io)  in n2_destroy_card()
305 		release_region(card->io, N2_IOPORTS);  in n2_destroy_card()
306 	if (card->ports[0].dev)  in n2_destroy_card()
307 		free_netdev(card->ports[0].dev);  in n2_destroy_card()
308 	if (card->ports[1].dev)  in n2_destroy_card()
309 		free_netdev(card->ports[1].dev);  in n2_destroy_card()
310 	kfree(card);  in n2_destroy_card()
324 	card_t *card;  in n2_run()  local
343 	card = kzalloc(sizeof(card_t), GFP_KERNEL);  in n2_run()
344 	if (!card)  in n2_run()
347 	card->ports[0].dev = alloc_hdlcdev(&card->ports[0]);  in n2_run()
348 	card->ports[1].dev = alloc_hdlcdev(&card->ports[1]);  in n2_run()
349 	if (!card->ports[0].dev || !card->ports[1].dev) {  in n2_run()
351 		n2_destroy_card(card);  in n2_run()
357 		n2_destroy_card(card);  in n2_run()
360 	card->io = io;  in n2_run()
362 	if (request_irq(irq, sca_intr, 0, devname, card)) {  in n2_run()
364 		n2_destroy_card(card);  in n2_run()
367 	card->irq = irq;  in n2_run()
371 		n2_destroy_card(card);  in n2_run()
374 	card->phy_winbase = winbase;  in n2_run()
375 	card->winbase = ioremap(winbase, USE_WINDOWSIZE);  in n2_run()
376 	if (!card->winbase) {  in n2_run()
378 		n2_destroy_card(card);  in n2_run()
400 		n2_destroy_card(card);  in n2_run()
407 	card->ram_size = sca_detect_ram(card, card->winbase, MAX_RAM_SIZE);  in n2_run()
410 	i = card->ram_size / ((valid0 + valid1) * (sizeof(pkt_desc) +  in n2_run()
413 	card->tx_ring_buffers = min(i / 2, MAX_TX_BUFFERS);  in n2_run()
414 	card->rx_ring_buffers = i - card->tx_ring_buffers;  in n2_run()
416 	card->buff_offset = (valid0 + valid1) * sizeof(pkt_desc) *  in n2_run()
417 		(card->tx_ring_buffers + card->rx_ring_buffers);  in n2_run()
420 		card->ram_size / 1024, card->irq,  in n2_run()
421 		card->tx_ring_buffers, card->rx_ring_buffers);  in n2_run()
423 	if (card->tx_ring_buffers < 1) {  in n2_run()
425 		n2_destroy_card(card);  in n2_run()
433 	sca_init(card, 0);  in n2_run()
435 		port_t *port = &card->ports[cnt];  in n2_run()
457 		port->card = card;  in n2_run()
461 			port->card = NULL;  in n2_run()
462 			n2_destroy_card(card);  in n2_run()
470 	*new_card = card;  in n2_run()
471 	new_card = &card->next_card;  in n2_run()
480 		pr_info("no card initialized\n");  in n2_init()
529 	card_t *card = first_card;  in n2_cleanup()  local
531 	while (card) {  in n2_cleanup()
532 		card_t *ptr = card;  in n2_cleanup()
534 		card = card->next_card;  in n2_cleanup()