195 static void readwords(struct net_local *lp, int portno, void *buf, int length)  in readwords()  argument
202 		tmp16 = ioread16(lp->virt_addr + portno);  in readwords()
208 static void writewords(struct net_local *lp, int portno, void *buf, int length)  in writewords()  argument
217 		iowrite16(tmp16, lp->virt_addr + portno);  in writewords()
224 	struct net_local *lp = netdev_priv(dev);  in readreg()  local
226 	iowrite16(regno, lp->virt_addr + ADD_PORT);  in readreg()
227 	return ioread16(lp->virt_addr + DATA_PORT);  in readreg()
233 	struct net_local *lp = netdev_priv(dev);  in writereg()  local
235 	iowrite16(regno, lp->virt_addr + ADD_PORT);  in writereg()
236 	iowrite16(value, lp->virt_addr + DATA_PORT);  in writereg()
337 	struct net_local *lp = netdev_priv(dev);  in get_dma_channel()  local
339 	if (lp->dma) {  in get_dma_channel()
340 		dev->dma = lp->dma;  in get_dma_channel()
341 		lp->isa_config |= ISA_RxDMA;  in get_dma_channel()
343 		if ((lp->isa_config & ANY_ISA_DMA) == 0)  in get_dma_channel()
345 		dev->dma = lp->isa_config & DMA_NO_MASK;  in get_dma_channel()
346 		if (lp->chip_type == CS8900)  in get_dma_channel()
349 			lp->isa_config &= ~ANY_ISA_DMA;  in get_dma_channel()
358 	struct net_local *lp = netdev_priv(dev);  in write_dma()  local
359 	if ((lp->isa_config & ANY_ISA_DMA) == 0)  in write_dma()
370 	struct net_local *lp = netdev_priv(dev);  in set_dma_cfg()  local
372 	if (lp->use_dma) {  in set_dma_cfg()
373 		if ((lp->isa_config & ANY_ISA_DMA) == 0) {  in set_dma_cfg()
377 		if (lp->isa_config & ISA_RxDMA) {  in set_dma_cfg()
378 			lp->curr_rx_cfg |= RX_DMA_ONLY;  in set_dma_cfg()
381 			lp->curr_rx_cfg |= AUTO_RX_DMA;	/* not that we support it... */  in set_dma_cfg()
390 	struct net_local *lp = netdev_priv(dev);  in dma_bufcfg()  local
391 	if (lp->use_dma)  in dma_bufcfg()
392 		return (lp->isa_config & ANY_ISA_DMA) ? RX_DMA_ENBL : 0;  in dma_bufcfg()
401 	struct net_local *lp = netdev_priv(dev);  in dma_busctl()  local
402 	if (lp->use_dma) {  in dma_busctl()
403 		if (lp->isa_config & ANY_ISA_DMA)  in dma_busctl()
405 		if (lp->isa_config & DMA_BURST)  in dma_busctl()
407 		if (lp->dmasize == 64)  in dma_busctl()
417 	struct net_local *lp = netdev_priv(dev);  in dma_rx()  local
420 	unsigned char *bp = lp->rx_dma_ptr;  in dma_rx()
442 		if (bp >= lp->end_dma_buff)  in dma_rx()
443 			bp -= lp->dmasize * 1024;  in dma_rx()
444 		lp->rx_dma_ptr = bp;  in dma_rx()
449 	if (bp + length > lp->end_dma_buff) {  in dma_rx()
450 		int semi_cnt = lp->end_dma_buff - bp;  in dma_rx()
452 		memcpy(skb_put(skb, length - semi_cnt), lp->dma_buff,  in dma_rx()
458 	if (bp >= lp->end_dma_buff)  in dma_rx()
459 		bp -= lp->dmasize*1024;  in dma_rx()
460 	lp->rx_dma_ptr = bp;  in dma_rx()
473 static void release_dma_buff(struct net_local *lp)  in release_dma_buff()  argument
475 	if (lp->dma_buff) {  in release_dma_buff()
476 		free_pages((unsigned long)(lp->dma_buff),  in release_dma_buff()
477 			   get_order(lp->dmasize * 1024));  in release_dma_buff()
478 		lp->dma_buff = NULL;  in release_dma_buff()
487 	struct net_local *lp = netdev_priv(dev);  in control_dc_dc()  local
496 	if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)  in control_dc_dc()
511 	struct net_local *lp = netdev_priv(dev);  in send_test_pkt()  local
525 	iowrite16(TX_AFTER_ALL, lp->virt_addr + TX_CMD_PORT);  in send_test_pkt()
526 	iowrite16(ETH_ZLEN, lp->virt_addr + TX_LEN_PORT);  in send_test_pkt()
536 	writewords(lp, TX_FRAME_PORT, test_packet, (ETH_ZLEN + 1) >> 1);  in send_test_pkt()
559 	struct net_local *lp = netdev_priv(dev);  in detect_tp()  local
572 	writereg(dev, PP_LineCTL, lp->linectl & ~AUI_ONLY);  in detect_tp()
583 	if (lp->chip_type == CS8900) {  in detect_tp()
584 		switch (lp->force & 0xf0) {  in detect_tp()
593 			lp->force &= ~FORCE_AUTO;  in detect_tp()
594 			lp->force |= FORCE_HALF;  in detect_tp()
605 		switch (lp->force & 0xf0) {  in detect_tp()
607 			lp->auto_neg_cnf = AUTO_NEG_ENABLE;  in detect_tp()
610 			lp->auto_neg_cnf = 0;  in detect_tp()
613 			lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;  in detect_tp()
617 		writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);  in detect_tp()
619 		if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {  in detect_tp()
639 	struct net_local *lp = netdev_priv(dev);  in detect_bnc()  local
644 	writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);  in detect_bnc()
655 	struct net_local *lp = netdev_priv(dev);  in detect_aui()  local
660 	writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);  in detect_aui()
672 	struct net_local *lp = netdev_priv(dev);  in net_rx()  local
676 	status = ioread16(lp->virt_addr + RX_FRAME_PORT);  in net_rx()
677 	length = ioread16(lp->virt_addr + RX_FRAME_PORT);  in net_rx()
692 	readwords(lp, RX_FRAME_PORT, skb_put(skb, length), length >> 1);  in net_rx()
694 		skb->data[length-1] = ioread16(lp->virt_addr + RX_FRAME_PORT);  in net_rx()
714 	struct net_local *lp;  in net_interrupt()  local
718 	lp = netdev_priv(dev);  in net_interrupt()
728 	while ((status = ioread16(lp->virt_addr + ISQ_PORT))) {  in net_interrupt()
769 				lp->send_underrun++;  in net_interrupt()
770 				if (lp->send_underrun == 3)  in net_interrupt()
771 					lp->send_cmd = TX_AFTER_381;  in net_interrupt()
772 				else if (lp->send_underrun == 6)  in net_interrupt()
773 					lp->send_cmd = TX_AFTER_ALL;  in net_interrupt()
783 			if (lp->use_dma && (status & RX_DMA)) {  in net_interrupt()
828 	struct net_local *lp = netdev_priv(dev);  in net_open()  local
843 			if ((1 << i) & lp->irq_map) {  in net_open()
847 					write_irq(dev, lp->chip_type, i);  in net_open()
862 		if (((1 << dev->irq) & lp->irq_map) == 0) {  in net_open()
864 			       dev->name, dev->irq, lp->irq_map);  in net_open()
875 		write_irq(dev, lp->chip_type, dev->irq);  in net_open()
884 	if (lp->use_dma && (lp->isa_config & ANY_ISA_DMA)) {  in net_open()
886 		lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,  in net_open()
887 								get_order(lp->dmasize * 1024));  in net_open()
888 		if (!lp->dma_buff) {  in net_open()
890 			       dev->name, lp->dmasize);  in net_open()
895 			 (unsigned long)lp->dma_buff,  in net_open()
896 			 (unsigned long)isa_virt_to_bus(lp->dma_buff));  in net_open()
897 		if ((unsigned long)lp->dma_buff >= MAX_DMA_ADDRESS ||  in net_open()
898 		    !dma_page_eq(lp->dma_buff,  in net_open()
899 				 lp->dma_buff + lp->dmasize * 1024 - 1)) {  in net_open()
903 		memset(lp->dma_buff, 0, lp->dmasize * 1024);	/* Why? */  in net_open()
909 		write_dma(dev, lp->chip_type, dev->dma);  in net_open()
910 		lp->rx_dma_ptr = lp->dma_buff;  in net_open()
911 		lp->end_dma_buff = lp->dma_buff + lp->dmasize * 1024;  in net_open()
912 		spin_lock_irqsave(&lp->lock, flags);  in net_open()
916 		set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff));  in net_open()
917 		set_dma_count(dev->dma, lp->dmasize * 1024);  in net_open()
919 		spin_unlock_irqrestore(&lp->lock, flags);  in net_open()
933 	if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) &&  in net_open()
934 	    (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))  in net_open()
935 		lp->linectl = LOW_RX_SQUELCH;  in net_open()
937 		lp->linectl = 0;  in net_open()
940 	switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {  in net_open()
942 		result = lp->adapter_cnf & A_CNF_10B_T;  in net_open()
945 		result = lp->adapter_cnf & A_CNF_AUI;  in net_open()
948 		result = lp->adapter_cnf & A_CNF_10B_2;  in net_open()
951 		result = lp->adapter_cnf & (A_CNF_10B_T |  in net_open()
962 		release_dma_buff(lp);  in net_open()
972 	switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {  in net_open()
978 			if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */  in net_open()
986 			if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */  in net_open()
994 			if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */  in net_open()
999 		writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);  in net_open()
1000 		if (lp->adapter_cnf & A_CNF_10B_T) {  in net_open()
1005 		if (lp->adapter_cnf & A_CNF_AUI) {  in net_open()
1010 		if (lp->adapter_cnf & A_CNF_10B_2) {  in net_open()
1042 	lp->rx_mode = 0;  in net_open()
1045 	lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;  in net_open()
1047 	if (lp->isa_config & STREAM_TRANSFER)  in net_open()
1048 		lp->curr_rx_cfg |= RX_STREAM_ENBL;  in net_open()
1052 	writereg(dev, PP_RxCFG, lp->curr_rx_cfg);  in net_open()
1089 	struct net_local *lp = netdev_priv(dev);  in net_close()  local
1102 	if (lp->use_dma && lp->dma) {  in net_close()
1104 		release_dma_buff(lp);  in net_close()
1118 	struct net_local *lp = netdev_priv(dev);  in net_get_stats()  local
1121 	spin_lock_irqsave(&lp->lock, flags);  in net_get_stats()
1125 	spin_unlock_irqrestore(&lp->lock, flags);  in net_get_stats()
1143 	struct net_local *lp = netdev_priv(dev);  in net_send_packet()  local
1156 	spin_lock_irqsave(&lp->lock, flags);  in net_send_packet()
1160 	iowrite16(lp->send_cmd, lp->virt_addr + TX_CMD_PORT);  in net_send_packet()
1161 	iowrite16(skb->len, lp->virt_addr + TX_LEN_PORT);  in net_send_packet()
1169 		spin_unlock_irqrestore(&lp->lock, flags);  in net_send_packet()
1174 	writewords(lp, TX_FRAME_PORT, skb->data, (skb->len + 1) >> 1);  in net_send_packet()
1175 	spin_unlock_irqrestore(&lp->lock, flags);  in net_send_packet()
1194 	struct net_local *lp = netdev_priv(dev);  in set_multicast_list()  local
1198 	spin_lock_irqsave(&lp->lock, flags);  in set_multicast_list()
1200 		lp->rx_mode = RX_ALL_ACCEPT;  in set_multicast_list()
1205 		lp->rx_mode = RX_MULTCAST_ACCEPT;  in set_multicast_list()
1207 		lp->rx_mode = 0;  in set_multicast_list()
1209 	writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);  in set_multicast_list()
1214 	cfg = lp->curr_rx_cfg;  in set_multicast_list()
1215 	if (lp->rx_mode == RX_ALL_ACCEPT)  in set_multicast_list()
1218 	spin_unlock_irqrestore(&lp->lock, flags);  in set_multicast_list()
1274 	struct net_local *lp = netdev_priv(dev);  in reset_chip()  local
1282 	if (lp->chip_type != CS8900) {  in reset_chip()
1284 		iowrite16(PP_CS8920_ISAINT, lp->virt_addr + ADD_PORT);  in reset_chip()
1285 		iowrite8(dev->irq, lp->virt_addr + DATA_PORT);  in reset_chip()
1286 		iowrite8(0, lp->virt_addr + DATA_PORT + 1);  in reset_chip()
1288 		iowrite16(PP_CS8920_ISAMemB, lp->virt_addr + ADD_PORT);  in reset_chip()
1290 			 lp->virt_addr + DATA_PORT);  in reset_chip()
1292 			 lp->virt_addr + DATA_PORT + 1);  in reset_chip()
1312 	struct net_local *lp = netdev_priv(dev);  in cs89x0_probe1()  local
1321 		memset(lp, 0, sizeof(*lp));  in cs89x0_probe1()
1322 		spin_lock_init(&lp->lock);  in cs89x0_probe1()
1326 			lp->use_dma = 1;  in cs89x0_probe1()
1327 			lp->dma = g_cs89x0_dma;  in cs89x0_probe1()
1328 			lp->dmasize = 16;	/* Could make this an option... */  in cs89x0_probe1()
1331 		lp->force = g_cs89x0_media__force;  in cs89x0_probe1()
1348 	lp->virt_addr = ioaddr;  in cs89x0_probe1()
1352 	lp->chip_type = rev_type & ~REVISON_BITS;  in cs89x0_probe1()
1353 	lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';  in cs89x0_probe1()
1359 	lp->send_cmd = TX_AFTER_381;  in cs89x0_probe1()
1360 	if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')  in cs89x0_probe1()
1361 		lp->send_cmd = TX_NOW;  in cs89x0_probe1()
1362 	if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')  in cs89x0_probe1()
1363 		lp->send_cmd = TX_NOW;  in cs89x0_probe1()
1369 		lp->chip_type == CS8900  ? '0' : '2',  in cs89x0_probe1()
1370 		lp->chip_type == CS8920M ? "M" : "",  in cs89x0_probe1()
1371 		lp->chip_revision,  in cs89x0_probe1()
1372 		lp->virt_addr);  in cs89x0_probe1()
1405 		lp->adapter_cnf = 0;  in cs89x0_probe1()
1409 			lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;  in cs89x0_probe1()
1412 			lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;  in cs89x0_probe1()
1415 			lp->adapter_cnf |=  A_CNF_10B_T | A_CNF_MEDIA_10B_T;  in cs89x0_probe1()
1418 			lp->adapter_cnf |=  A_CNF_AUI | A_CNF_MEDIA_AUI;  in cs89x0_probe1()
1421 			lp->adapter_cnf |=  A_CNF_AUI | A_CNF_10B_T |  in cs89x0_probe1()
1425 			 dev->name, i, lp->adapter_cnf);  in cs89x0_probe1()
1428 		if (lp->chip_type == CS8900)  in cs89x0_probe1()
1429 			lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;  in cs89x0_probe1()
1455 		if (!lp->auto_neg_cnf)  in cs89x0_probe1()
1456 			lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET / 2];  in cs89x0_probe1()
1458 		if (!lp->adapter_cnf)  in cs89x0_probe1()
1459 			lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET / 2];  in cs89x0_probe1()
1461 		lp->isa_config = eeprom_buff[ISA_CNF_OFFSET / 2];  in cs89x0_probe1()
1471 			 dev->name, lp->adapter_cnf);  in cs89x0_probe1()
1477 		if (lp->force & FORCE_RJ45) {  in cs89x0_probe1()
1478 			lp->adapter_cnf |= A_CNF_10B_T;  in cs89x0_probe1()
1481 		if (lp->force & FORCE_AUI) {  in cs89x0_probe1()
1482 			lp->adapter_cnf |= A_CNF_AUI;  in cs89x0_probe1()
1485 		if (lp->force & FORCE_BNC) {  in cs89x0_probe1()
1486 			lp->adapter_cnf |= A_CNF_10B_2;  in cs89x0_probe1()
1490 			lp->adapter_cnf |= A_CNF_MEDIA_AUTO;  in cs89x0_probe1()
1491 		else if (lp->force & FORCE_RJ45)  in cs89x0_probe1()
1492 			lp->adapter_cnf |= A_CNF_MEDIA_10B_T;  in cs89x0_probe1()
1493 		else if (lp->force & FORCE_AUI)  in cs89x0_probe1()
1494 			lp->adapter_cnf |= A_CNF_MEDIA_AUI;  in cs89x0_probe1()
1495 		else if (lp->force & FORCE_BNC)  in cs89x0_probe1()
1496 			lp->adapter_cnf |= A_CNF_MEDIA_10B_2;  in cs89x0_probe1()
1500 		 dev->name, lp->force, lp->adapter_cnf);  in cs89x0_probe1()
1511 		(lp->adapter_cnf & A_CNF_10B_T) ? "RJ-45," : "",  in cs89x0_probe1()
1512 		(lp->adapter_cnf & A_CNF_AUI) ? "AUI," : "",  in cs89x0_probe1()
1513 		(lp->adapter_cnf & A_CNF_10B_2) ? "BNC," : "");  in cs89x0_probe1()
1515 	lp->irq_map = 0xffff;  in cs89x0_probe1()
1518 	if (lp->chip_type != CS8900 &&  in cs89x0_probe1()
1525 		i = lp->isa_config & INT_NO_MASK;  in cs89x0_probe1()
1527 		if (lp->chip_type == CS8900) {  in cs89x0_probe1()
1534 			lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */  in cs89x0_probe1()
1542 					lp->irq_map = ((irq_map_buff[0] >> 8) |  in cs89x0_probe1()
1554 	if (lp->use_dma) {  in cs89x0_probe1()
1574 	iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);  in cs89x0_probe1()
1588 	struct net_local *lp = netdev_priv(dev);  in cs89x0_ioport_probe()  local
1592 	if (!lp)  in cs89x0_ioport_probe()
1763 	struct net_local *lp;  in init_module()  local
1776 	lp = netdev_priv(dev);  in init_module()
1780 		lp->use_dma = use_dma;  in init_module()
1781 		lp->dma = dma;  in init_module()
1782 		lp->dmasize = dmasize;  in init_module()
1786 	spin_lock_init(&lp->lock);  in init_module()
1790 		lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;  in init_module()
1792 		lp->adapter_cnf = A_CNF_MEDIA_AUI   | A_CNF_AUI;  in init_module()
1794 		lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2;  in init_module()
1796 		lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;  in init_module()
1799 		lp->auto_neg_cnf = AUTO_NEG_ENABLE;  in init_module()
1833 	struct net_local *lp = netdev_priv(dev_cs89x0);  in cleanup_module()  local
1836 	iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);  in cleanup_module()
1837 	ioport_unmap(lp->virt_addr);  in cleanup_module()
1847 	struct net_local *lp;  in cs89x0_platform_probe()  local
1855 	lp = netdev_priv(dev);  in cs89x0_platform_probe()