206 static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel)  in mite_fifo_size()  argument
208 	unsigned int fcr_bits = readl(mite->mmio + MITE_FCR(channel));  in mite_fifo_size()
217 	struct mite *mite = mite_chan->mite;  in mite_device_bytes_transferred()  local
219 	return readl(mite->mmio + MITE_DAR(mite_chan->channel));  in mite_device_bytes_transferred()
228 	struct mite *mite = mite_chan->mite;  in mite_bytes_in_transit()  local
230 	return readl(mite->mmio + MITE_FCR(mite_chan->channel)) & 0xff;  in mite_bytes_in_transit()
362 	struct mite *mite = mite_chan->mite;  in mite_get_status()  local
366 	spin_lock_irqsave(&mite->lock, flags);  in mite_get_status()
367 	status = readl(mite->mmio + MITE_CHSR(mite_chan->channel));  in mite_get_status()
371 		       mite->mmio + MITE_CHOR(mite_chan->channel));  in mite_get_status()
373 	spin_unlock_irqrestore(&mite->lock, flags);  in mite_get_status()
389 	struct mite *mite = mite_chan->mite;  in mite_ack_linkc()  local
394 		writel(CHOR_CLRLC, mite->mmio + MITE_CHOR(mite_chan->channel));  in mite_ack_linkc()
416 	struct mite *mite = mite_chan->mite;  in mite_done()  local
421 	spin_lock_irqsave(&mite->lock, flags);  in mite_done()
423 	spin_unlock_irqrestore(&mite->lock, flags);  in mite_done()
431 	       mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel));  in mite_dma_reset()
440 	struct mite *mite = mite_chan->mite;  in mite_dma_arm()  local
448 	spin_lock_irqsave(&mite->lock, flags);  in mite_dma_arm()
451 	writel(CHOR_START, mite->mmio + MITE_CHOR(mite_chan->channel));  in mite_dma_arm()
452 	spin_unlock_irqrestore(&mite->lock, flags);  in mite_dma_arm()
462 	struct mite *mite = mite_chan->mite;  in mite_dma_disarm()  local
465 	writel(CHOR_ABORT, mite->mmio + MITE_CHOR(mite_chan->channel));  in mite_dma_disarm()
478 	struct mite *mite = mite_chan->mite;  in mite_prep_dma()  local
508 	writel(chcr, mite->mmio + MITE_CHCR(mite_chan->channel));  in mite_prep_dma()
526 	writel(mcr, mite->mmio + MITE_MCR(mite_chan->channel));  in mite_prep_dma()
545 	writel(dcr, mite->mmio + MITE_DCR(mite_chan->channel));  in mite_prep_dma()
548 	writel(0, mite->mmio + MITE_DAR(mite_chan->channel));  in mite_prep_dma()
552 	writel(lkcr, mite->mmio + MITE_LKCR(mite_chan->channel));  in mite_prep_dma()
556 	       mite->mmio + MITE_LKAR(mite_chan->channel));  in mite_prep_dma()
567 struct mite_channel *mite_request_channel_in_range(struct mite *mite,  in mite_request_channel_in_range()  argument
580 	spin_lock_irqsave(&mite->lock, flags);  in mite_request_channel_in_range()
582 		mite_chan = &mite->channels[i];  in mite_request_channel_in_range()
589 	spin_unlock_irqrestore(&mite->lock, flags);  in mite_request_channel_in_range()
599 struct mite_channel *mite_request_channel(struct mite *mite,  in mite_request_channel()  argument
602 	return mite_request_channel_in_range(mite, ring, 0,  in mite_request_channel()
603 					     mite->num_channels - 1);  in mite_request_channel()
613 	struct mite *mite = mite_chan->mite;  in mite_release_channel()  local
617 	spin_lock_irqsave(&mite->lock, flags);  in mite_release_channel()
629 		       mite->mmio + MITE_CHCR(mite_chan->channel));  in mite_release_channel()
632 	spin_unlock_irqrestore(&mite->lock, flags);  in mite_release_channel()
748 struct mite_ring *mite_alloc_ring(struct mite *mite)  in mite_alloc_ring()  argument
755 	ring->hw_dev = get_device(&mite->pcidev->dev);  in mite_alloc_ring()
781 static int mite_setup(struct comedi_device *dev, struct mite *mite,  in mite_setup()  argument
791 	pci_set_master(mite->pcidev);  in mite_setup()
793 	mite->mmio = pci_ioremap_bar(mite->pcidev, 0);  in mite_setup()
794 	if (!mite->mmio)  in mite_setup()
797 	dev->mmio = pci_ioremap_bar(mite->pcidev, 1);  in mite_setup()
800 	daq_phys_addr = pci_resource_start(mite->pcidev, 1);  in mite_setup()
801 	length = pci_resource_len(mite->pcidev, 1);  in mite_setup()
804 		writel(0, mite->mmio + MITE_IODWBSR);  in mite_setup()
809 		       mite->mmio + MITE_IODWBSR_1);  in mite_setup()
810 		writel(0, mite->mmio + MITE_IODWCR_1);  in mite_setup()
812 		writel(daq_phys_addr | WENAB, mite->mmio + MITE_IODWBSR);  in mite_setup()
825 	unknown_dma_burst_bits = readl(mite->mmio + MITE_UNKNOWN_DMA_BURST_REG);  in mite_setup()
827 	writel(unknown_dma_burst_bits, mite->mmio + MITE_UNKNOWN_DMA_BURST_REG);  in mite_setup()
829 	csigr_bits = readl(mite->mmio + MITE_CSIGR);  in mite_setup()
830 	mite->num_channels = CSIGR_TO_DMAC(csigr_bits);  in mite_setup()
831 	if (mite->num_channels > MAX_MITE_DMA_CHANNELS) {  in mite_setup()
834 			 mite->num_channels, MAX_MITE_DMA_CHANNELS);  in mite_setup()
835 		mite->num_channels = MAX_MITE_DMA_CHANNELS;  in mite_setup()
852 	for (i = 0; i < mite->num_channels; i++) {  in mite_setup()
853 		writel(CHOR_DMARESET, mite->mmio + MITE_CHOR(i));  in mite_setup()
858 		       mite->mmio + MITE_CHCR(i));  in mite_setup()
860 	mite->fifo_size = mite_fifo_size(mite, 0);  in mite_setup()
861 	dev_dbg(dev->class_dev, "mite: fifo size is %i.\n", mite->fifo_size);  in mite_setup()
875 struct mite *mite_attach(struct comedi_device *dev, bool use_win1)  in mite_attach()
878 	struct mite *mite;  in mite_attach()  local
882 	mite = kzalloc(sizeof(*mite), GFP_KERNEL);  in mite_attach()
883 	if (!mite)  in mite_attach()
886 	spin_lock_init(&mite->lock);  in mite_attach()
887 	mite->pcidev = pcidev;  in mite_attach()
889 		mite->channels[i].mite = mite;  in mite_attach()
890 		mite->channels[i].channel = i;  in mite_attach()
891 		mite->channels[i].done = 1;  in mite_attach()
894 	ret = mite_setup(dev, mite, use_win1);  in mite_attach()
896 		if (mite->mmio)  in mite_attach()
897 			iounmap(mite->mmio);  in mite_attach()
898 		kfree(mite);  in mite_attach()
902 	return mite;  in mite_attach()
912 void mite_detach(struct mite *mite)  in mite_detach()  argument
914 	if (!mite)  in mite_detach()
917 	if (mite->mmio)  in mite_detach()
918 		iounmap(mite->mmio);  in mite_detach()
920 	kfree(mite);  in mite_detach()