C++ (Cpp) flexcop_sram_set_dest Examples

Example #1

File: flexcop-pci.c Project: ena30/snake-os

static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci)
{
	int ret;
	if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[0],FC_DEFAULT_DMA1_BUFSIZE)) != 0)
		return ret;

	if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[1],FC_DEFAULT_DMA2_BUFSIZE)) != 0)
		goto dma1_free;

	flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1);
	flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_CAO   | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2);

	fc_pci->init_state |= FC_PCI_DMA_INIT;

	goto success;
dma1_free:
	flexcop_dma_free(&fc_pci->dma[0]);

success:
	return ret;
}

Example #2

File: flexcop-usb.c Project: CSCLOG/beaglebone

static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
{
	u16 frame_size = le16_to_cpu(
		fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
	int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO *
		frame_size, i, j, ret;
	int buffer_offset = 0;

	deb_ts("creating %d iso-urbs with %d frames "
			"each of %d bytes size = %d.\n", B2C2_USB_NUM_ISO_URB,
			B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);

	fc_usb->iso_buffer = pci_alloc_consistent(NULL,
			bufsize, &fc_usb->dma_addr);
	if (fc_usb->iso_buffer == NULL)
		return -ENOMEM;

	memset(fc_usb->iso_buffer, 0, bufsize);
	fc_usb->buffer_size = bufsize;

	/* creating iso urbs */
	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
		fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
			GFP_ATOMIC);
		if (fc_usb->iso_urb[i] == NULL) {
			ret = -ENOMEM;
			goto urb_error;
		}
	}

	/* initialising and submitting iso urbs */
	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
		int frame_offset = 0;
		struct urb *urb = fc_usb->iso_urb[i];
		deb_ts("initializing and submitting urb no. %d "
			"(buf_offset: %d).\n", i, buffer_offset);

		urb->dev = fc_usb->udev;
		urb->context = fc_usb;
		urb->complete = flexcop_usb_urb_complete;
		urb->pipe = B2C2_USB_DATA_PIPE;
		urb->transfer_flags = URB_ISO_ASAP;
		urb->interval = 1;
		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
		urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;

		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
			deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
					i, j, frame_offset);
			urb->iso_frame_desc[j].offset = frame_offset;
			urb->iso_frame_desc[j].length = frame_size;
			frame_offset += frame_size;
		}

		if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
			err("submitting urb %d failed with %d.", i, ret);
			goto urb_error;
		}
		deb_ts("submitted urb no. %d.\n",i);
	}

	/* SRAM */
	flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
			FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
			FC_SRAM_DEST_TARGET_WAN_USB);
	flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
	flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
	return 0;

urb_error:
	flexcop_usb_transfer_exit(fc_usb);
	return ret;
}