31 static inline void softing_set_reset_dpram(struct softing *card)  in softing_set_reset_dpram()  argument
33 	if (card->pdat->generation >= 2) {  in softing_set_reset_dpram()
34 		spin_lock_bh(&card->spin);  in softing_set_reset_dpram()
35 		iowrite8(ioread8(&card->dpram[DPRAM_V2_RESET]) & ~1,  in softing_set_reset_dpram()
36 				&card->dpram[DPRAM_V2_RESET]);  in softing_set_reset_dpram()
37 		spin_unlock_bh(&card->spin);  in softing_set_reset_dpram()
41 static inline void softing_clr_reset_dpram(struct softing *card)  in softing_clr_reset_dpram()  argument
43 	if (card->pdat->generation >= 2) {  in softing_clr_reset_dpram()
44 		spin_lock_bh(&card->spin);  in softing_clr_reset_dpram()
45 		iowrite8(ioread8(&card->dpram[DPRAM_V2_RESET]) | 1,  in softing_clr_reset_dpram()
46 				&card->dpram[DPRAM_V2_RESET]);  in softing_clr_reset_dpram()
47 		spin_unlock_bh(&card->spin);  in softing_clr_reset_dpram()
56 	struct softing *card = priv->card;  in softing_netdev_start_xmit()  local
66 	spin_lock(&card->spin);  in softing_netdev_start_xmit()
69 	if (!card->fw.up ||  in softing_netdev_start_xmit()
70 			(card->tx.pending >= TXMAX) ||  in softing_netdev_start_xmit()
73 	fifo_wr = ioread8(&card->dpram[DPRAM_TX_WR]);  in softing_netdev_start_xmit()
74 	fifo_rd = ioread8(&card->dpram[DPRAM_TX_RD]);  in softing_netdev_start_xmit()
100 	memcpy_toio(&card->dpram[DPRAM_TX + DPRAM_TX_SIZE * fifo_wr],  in softing_netdev_start_xmit()
104 	iowrite8(fifo_wr, &card->dpram[DPRAM_TX_WR]);  in softing_netdev_start_xmit()
105 	card->tx.last_bus = priv->index;  in softing_netdev_start_xmit()
106 	++card->tx.pending;  in softing_netdev_start_xmit()
115 	spin_unlock(&card->spin);  in softing_netdev_start_xmit()
116 	if (card->tx.pending >= TXMAX) {  in softing_netdev_start_xmit()
118 		for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_netdev_start_xmit()
119 			if (card->net[j])  in softing_netdev_start_xmit()
120 				netif_stop_queue(card->net[j]);  in softing_netdev_start_xmit()
150 static int softing_handle_1(struct softing *card)  in softing_handle_1()  argument
164 	lost_msg = ioread8(&card->dpram[DPRAM_RX_LOST]);  in softing_handle_1()
168 		iowrite8(0, &card->dpram[DPRAM_RX_LOST]);  in softing_handle_1()
177 		for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_handle_1()
178 			netdev = card->net[j];  in softing_handle_1()
192 	fifo_rd = ioread8(&card->dpram[DPRAM_RX_RD]);  in softing_handle_1()
193 	fifo_wr = ioread8(&card->dpram[DPRAM_RX_WR]);  in softing_handle_1()
200 	memcpy_fromio(buf, &card->dpram[DPRAM_RX + DPRAM_RX_SIZE*fifo_rd],  in softing_handle_1()
204 	iowrite8(fifo_rd, &card->dpram[DPRAM_RX_RD]);  in softing_handle_1()
209 		/* not quite useful, probably the card has got out */  in softing_handle_1()
211 	netdev = card->net[0];  in softing_handle_1()
213 		netdev = card->net[1];  in softing_handle_1()
239 		iowrite8(state, &card->dpram[priv->index ?  in softing_handle_1()
243 		ktime = softing_raw2ktime(card, tmp_u32);  in softing_handle_1()
276 		ktime = softing_raw2ktime(card, tmp_u32);  in softing_handle_1()
295 			if (card->tx.pending)  in softing_handle_1()
296 				--card->tx.pending;  in softing_handle_1()
319 	struct softing *card = (struct softing *)dev_id;  in softing_irq_thread()  local
325 	spin_lock_bh(&card->spin);  in softing_irq_thread()
326 	while (softing_handle_1(card) > 0) {  in softing_irq_thread()
327 		++card->irq.svc_count;  in softing_irq_thread()
330 	spin_unlock_bh(&card->spin);  in softing_irq_thread()
332 	offset = card->tx.last_bus;  in softing_irq_thread()
333 	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_irq_thread()
334 		if (card->tx.pending >= TXMAX)  in softing_irq_thread()
336 		netdev = card->net[(j + offset + 1) % card->pdat->nbus];  in softing_irq_thread()
357 	struct softing *card = (struct softing *)dev_id;  in softing_irq_v2()  local
360 	ir = ioread8(&card->dpram[DPRAM_V2_IRQ_TOHOST]);  in softing_irq_v2()
361 	iowrite8(0, &card->dpram[DPRAM_V2_IRQ_TOHOST]);  in softing_irq_v2()
367 	struct softing *card = (struct softing *)dev_id;  in softing_irq_v1()  local
370 	ir = ioread8(&card->dpram[DPRAM_IRQ_TOHOST]);  in softing_irq_v1()
371 	iowrite8(0, &card->dpram[DPRAM_IRQ_TOHOST]);  in softing_irq_v1()
421 int softing_enable_irq(struct softing *card, int enable)  in softing_enable_irq()  argument
425 	if (!card->irq.nr) {  in softing_enable_irq()
427 	} else if (card->irq.requested && !enable) {  in softing_enable_irq()
428 		free_irq(card->irq.nr, card);  in softing_enable_irq()
429 		card->irq.requested = 0;  in softing_enable_irq()
430 	} else if (!card->irq.requested && enable) {  in softing_enable_irq()
431 		ret = request_threaded_irq(card->irq.nr,  in softing_enable_irq()
432 				(card->pdat->generation >= 2) ?  in softing_enable_irq()
435 				dev_name(&card->pdev->dev), card);  in softing_enable_irq()
437 			dev_alert(&card->pdev->dev,  in softing_enable_irq()
439 					card->irq.nr);  in softing_enable_irq()
442 		card->irq.requested = 1;  in softing_enable_irq()
447 static void softing_card_shutdown(struct softing *card)  in softing_card_shutdown()  argument
451 	if (mutex_lock_interruptible(&card->fw.lock)) {  in softing_card_shutdown()
454 	fw_up = card->fw.up;  in softing_card_shutdown()
455 	card->fw.up = 0;  in softing_card_shutdown()
457 	if (card->irq.requested && card->irq.nr) {  in softing_card_shutdown()
458 		free_irq(card->irq.nr, card);  in softing_card_shutdown()
459 		card->irq.requested = 0;  in softing_card_shutdown()
462 		if (card->pdat->enable_irq)  in softing_card_shutdown()
463 			card->pdat->enable_irq(card->pdev, 0);  in softing_card_shutdown()
464 		softing_set_reset_dpram(card);  in softing_card_shutdown()
465 		if (card->pdat->reset)  in softing_card_shutdown()
466 			card->pdat->reset(card->pdev, 1);  in softing_card_shutdown()
468 	mutex_unlock(&card->fw.lock);  in softing_card_shutdown()
471 static int softing_card_boot(struct softing *card)  in softing_card_boot()  argument
478 	if (mutex_lock_interruptible(&card->fw.lock))  in softing_card_boot()
480 	if (card->fw.up) {  in softing_card_boot()
481 		mutex_unlock(&card->fw.lock);  in softing_card_boot()
485 	if (card->pdat->enable_irq)  in softing_card_boot()
486 		card->pdat->enable_irq(card->pdev, 1);  in softing_card_boot()
487 	/* boot card */  in softing_card_boot()
488 	softing_set_reset_dpram(card);  in softing_card_boot()
489 	if (card->pdat->reset)  in softing_card_boot()
490 		card->pdat->reset(card->pdev, 1);  in softing_card_boot()
491 	for (j = 0; (j + sizeof(stream)) < card->dpram_size;  in softing_card_boot()
494 		memcpy_toio(&card->dpram[j], stream, sizeof(stream));  in softing_card_boot()
497 		memcpy_fromio(back, &card->dpram[j], sizeof(stream));  in softing_card_boot()
502 		dev_alert(&card->pdev->dev, "dpram failed at 0x%04x\n", j);  in softing_card_boot()
508 	ret = softing_load_fw(card->pdat->boot.fw, card, card->dpram,  in softing_card_boot()
509 				card->dpram_size,  in softing_card_boot()
510 				card->pdat->boot.offs - card->pdat->boot.addr);  in softing_card_boot()
514 	ret = softing_load_fw(card->pdat->load.fw, card, card->dpram,  in softing_card_boot()
515 				card->dpram_size,  in softing_card_boot()
516 				card->pdat->load.offs - card->pdat->load.addr);  in softing_card_boot()
520 	if (card->pdat->reset)  in softing_card_boot()
521 		card->pdat->reset(card->pdev, 0);  in softing_card_boot()
522 	softing_clr_reset_dpram(card);  in softing_card_boot()
523 	ret = softing_bootloader_command(card, 0, "card boot");  in softing_card_boot()
526 	ret = softing_load_app_fw(card->pdat->app.fw, card);  in softing_card_boot()
530 	ret = softing_chip_poweron(card);  in softing_card_boot()
534 	card->fw.up = 1;  in softing_card_boot()
535 	mutex_unlock(&card->fw.lock);  in softing_card_boot()
538 	card->fw.up = 0;  in softing_card_boot()
539 	if (card->pdat->enable_irq)  in softing_card_boot()
540 		card->pdat->enable_irq(card->pdev, 0);  in softing_card_boot()
541 	softing_set_reset_dpram(card);  in softing_card_boot()
542 	if (card->pdat->reset)  in softing_card_boot()
543 		card->pdat->reset(card->pdev, 1);  in softing_card_boot()
544 	mutex_unlock(&card->fw.lock);  in softing_card_boot()
574 	struct softing *card = priv->card;  in store_output()  local
583 	ret = mutex_lock_interruptible(&card->fw.lock);  in store_output()
587 		mutex_unlock(&card->fw.lock);  in store_output()
591 	mutex_unlock(&card->fw.lock);  in store_output()
632 static struct net_device *softing_netdev_create(struct softing *card,  in softing_netdev_create()  argument
640 		dev_alert(&card->pdev->dev, "alloc_candev failed\n");  in softing_netdev_create()
645 	priv->card = card;  in softing_netdev_create()
647 	priv->btr_const.brp_max = card->pdat->max_brp;  in softing_netdev_create()
648 	priv->btr_const.sjw_max = card->pdat->max_sjw;  in softing_netdev_create()
653 	SET_NETDEV_DEV(netdev, &card->pdev->dev);  in softing_netdev_create()
693 	struct softing *card = dev_get_drvdata(dev); \
694 	return sprintf(buf, "%u\n", card->member); \
702 	struct softing *card = dev_get_drvdata(dev); \
703 	return sprintf(buf, "%s\n", card->member); \
734 	struct softing *card = platform_get_drvdata(pdev);  in softing_pdev_remove()  local
737 	/* first, disable card*/  in softing_pdev_remove()
738 	softing_card_shutdown(card);  in softing_pdev_remove()
740 	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_pdev_remove()
741 		if (!card->net[j])  in softing_pdev_remove()
743 		softing_netdev_cleanup(card->net[j]);  in softing_pdev_remove()
744 		card->net[j] = NULL;  in softing_pdev_remove()
748 	iounmap(card->dpram);  in softing_pdev_remove()
749 	kfree(card);  in softing_pdev_remove()
755 	struct softing *card;  in softing_pdev_probe()  local
766 	if (pdat->nbus > ARRAY_SIZE(card->net)) {  in softing_pdev_probe()
771 	card = kzalloc(sizeof(*card), GFP_KERNEL);  in softing_pdev_probe()
772 	if (!card)  in softing_pdev_probe()
774 	card->pdat = pdat;  in softing_pdev_probe()
775 	card->pdev = pdev;  in softing_pdev_probe()
776 	platform_set_drvdata(pdev, card);  in softing_pdev_probe()
777 	mutex_init(&card->fw.lock);  in softing_pdev_probe()
778 	spin_lock_init(&card->spin);  in softing_pdev_probe()
784 	card->dpram_phys = pres->start;  in softing_pdev_probe()
785 	card->dpram_size = resource_size(pres);  in softing_pdev_probe()
786 	card->dpram = ioremap(card->dpram_phys, card->dpram_size);  in softing_pdev_probe()
787 	if (!card->dpram) {  in softing_pdev_probe()
788 		dev_alert(&card->pdev->dev, "dpram ioremap failed\n");  in softing_pdev_probe()
794 		card->irq.nr = pres->start;  in softing_pdev_probe()
796 	/* reset card */  in softing_pdev_probe()
797 	ret = softing_card_boot(card);  in softing_pdev_probe()
804 	card->id.freq = card->pdat->freq;  in softing_pdev_probe()
808 		dev_alert(&card->pdev->dev, "sysfs failed\n");  in softing_pdev_probe()
812 	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_pdev_probe()
813 		card->net[j] = netdev =  in softing_pdev_probe()
814 			softing_netdev_create(card, card->id.chip[j]);  in softing_pdev_probe()
821 		priv = netdev_priv(card->net[j]);  in softing_pdev_probe()
826 			card->net[j] = NULL;  in softing_pdev_probe()
827 			dev_alert(&card->pdev->dev,  in softing_pdev_probe()
832 	dev_info(&card->pdev->dev, "%s ready.\n", card->pdat->name);  in softing_pdev_probe()
836 	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {  in softing_pdev_probe()
837 		if (!card->net[j])  in softing_pdev_probe()
839 		softing_netdev_cleanup(card->net[j]);  in softing_pdev_probe()
843 	softing_card_shutdown(card);  in softing_pdev_probe()
845 	iounmap(card->dpram);  in softing_pdev_probe()
848 	kfree(card);  in softing_pdev_probe()