C++ (Cpp) rtl_inval_rx_desc Examples

Example #1

File: rtl8169.c Project: CreatorDev/u-boot

/**************************************************************************
RECV - Receive a frame
***************************************************************************/
static int rtl_recv(struct eth_device *dev)
{
	/* return true if there's an ethernet packet ready to read */
	/* nic->packet should contain data on return */
	/* nic->packetlen should contain length of data */
	int cur_rx;
	int length = 0;

#ifdef DEBUG_RTL8169_RX
	printf ("%s\n", __FUNCTION__);
#endif
	ioaddr = dev->iobase;

	cur_rx = tpc->cur_rx;

	rtl_inval_rx_desc(&tpc->RxDescArray[cur_rx]);

	if ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) {
		if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) {
			unsigned char rxdata[RX_BUF_LEN];
			length = (int) (le32_to_cpu(tpc->RxDescArray[cur_rx].
						status) & 0x00001FFF) - 4;

			rtl_inval_buffer(tpc->RxBufferRing[cur_rx], length);
			memcpy(rxdata, tpc->RxBufferRing[cur_rx], length);

			if (cur_rx == NUM_RX_DESC - 1)
				tpc->RxDescArray[cur_rx].status =
					cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
			else
				tpc->RxDescArray[cur_rx].status =
					cpu_to_le32(OWNbit + RX_BUF_SIZE);
			tpc->RxDescArray[cur_rx].buf_addr =
				cpu_to_le32(bus_to_phys(tpc->RxBufferRing[cur_rx]));
			rtl_flush_rx_desc(&tpc->RxDescArray[cur_rx]);

			net_process_received_packet(rxdata, length);
		} else {
			puts("Error Rx");
		}
		cur_rx = (cur_rx + 1) % NUM_RX_DESC;
		tpc->cur_rx = cur_rx;
		return 1;

	} else {
		ushort sts = RTL_R8(IntrStatus);
		RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
		udelay(100);	/* wait */
	}
	tpc->cur_rx = cur_rx;
	return (0);		/* initially as this is called to flush the input */
}

Example #2

File: rtl8169.c Project: OpenNoah/u-boot

static int rtl_recv_common(pci_dev_t dev, unsigned long dev_iobase,
			   uchar **packetp)
#endif
{
	/* return true if there's an ethernet packet ready to read */
	/* nic->packet should contain data on return */
	/* nic->packetlen should contain length of data */
	int cur_rx;
	int length = 0;

#ifdef DEBUG_RTL8169_RX
	printf ("%s\n", __FUNCTION__);
#endif
	ioaddr = dev_iobase;

	cur_rx = tpc->cur_rx;

	rtl_inval_rx_desc(&tpc->RxDescArray[cur_rx]);

	if ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) {
		if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) {
			length = (int) (le32_to_cpu(tpc->RxDescArray[cur_rx].
						status) & 0x00001FFF) - 4;

			rtl_inval_buffer(tpc->RxBufferRing[cur_rx], length);
			memcpy(rxdata, tpc->RxBufferRing[cur_rx], length);

			if (cur_rx == NUM_RX_DESC - 1)
				tpc->RxDescArray[cur_rx].status =
					cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
			else
				tpc->RxDescArray[cur_rx].status =
					cpu_to_le32(OWNbit + RX_BUF_SIZE);
#ifdef CONFIG_DM_ETH
			tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
				dm_pci_mem_to_phys(dev,
					(pci_addr_t)(unsigned long)
					tpc->RxBufferRing[cur_rx]));
#else
			tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
				pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)
				tpc->RxBufferRing[cur_rx]));
#endif
			rtl_flush_rx_desc(&tpc->RxDescArray[cur_rx]);
#ifdef CONFIG_DM_ETH
			*packetp = rxdata;
#else
			net_process_received_packet(rxdata, length);
#endif
		} else {
			puts("Error Rx");
			length = -EIO;
		}
		cur_rx = (cur_rx + 1) % NUM_RX_DESC;
		tpc->cur_rx = cur_rx;
		return length;

	} else {
		ushort sts = RTL_R8(IntrStatus);
		RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
		udelay(100);	/* wait */
	}
	tpc->cur_rx = cur_rx;
	return (0);		/* initially as this is called to flush the input */
}