+++ /dev/null
-/*
- * Copyright (C) 2000, 2005 MIPS Technologies, Inc. All rights reserved.
- * Authors: Carsten Langgaard <carstenl@mips.com>
- * Maciej W. Rozycki <macro@mips.com>
- * Copyright (C) 2004 Ralf Baechle <ralf@linux-mips.org>
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * SAA9730 ethernet driver.
- *
- * Changes:
- * Angelo Dell'Aera <buffer@antifork.org> : Conversion to the new PCI API
- * (pci_driver).
- * Conversion to spinlocks.
- * Error handling fixes.
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/delay.h>
-#include <linux/etherdevice.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/pci.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-#include <asm/addrspace.h>
-#include <asm/io.h>
-
-#include <asm/mips-boards/prom.h>
-
-#include "saa9730.h"
-
-#ifdef LAN_SAA9730_DEBUG
-int lan_saa9730_debug = LAN_SAA9730_DEBUG;
-#else
-int lan_saa9730_debug;
-#endif
-
-#define DRV_MODULE_NAME "saa9730"
-
-static struct pci_device_id saa9730_pci_tbl[] = {
- { PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA9730,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, saa9730_pci_tbl);
-
-/* Non-zero only if the current card is a PCI with BIOS-set IRQ. */
-static unsigned int pci_irq_line;
-
-static void evm_saa9730_enable_lan_int(struct lan_saa9730_private *lp)
-{
- writel(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptBlock1);
- writel(readl(&lp->evm_saa9730_regs->InterruptStatus1) | EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptStatus1);
- writel(readl(&lp->evm_saa9730_regs->InterruptEnable1) | EVM_LAN_INT |
- EVM_MASTER_EN, &lp->evm_saa9730_regs->InterruptEnable1);
-}
-
-static void evm_saa9730_disable_lan_int(struct lan_saa9730_private *lp)
-{
- writel(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptBlock1);
- writel(readl(&lp->evm_saa9730_regs->InterruptEnable1) & ~EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptEnable1);
-}
-
-static void evm_saa9730_clear_lan_int(struct lan_saa9730_private *lp)
-{
- writel(EVM_LAN_INT, &lp->evm_saa9730_regs->InterruptStatus1);
-}
-
-static void evm_saa9730_block_lan_int(struct lan_saa9730_private *lp)
-{
- writel(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptBlock1);
-}
-
-static void evm_saa9730_unblock_lan_int(struct lan_saa9730_private *lp)
-{
- writel(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
- &lp->evm_saa9730_regs->InterruptBlock1);
-}
-
-static void __used show_saa9730_regs(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- int i, j;
-
- printk("TxmBufferA = %p\n", lp->TxmBuffer[0][0]);
- printk("TxmBufferB = %p\n", lp->TxmBuffer[1][0]);
- printk("RcvBufferA = %p\n", lp->RcvBuffer[0][0]);
- printk("RcvBufferB = %p\n", lp->RcvBuffer[1][0]);
-
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
- printk("TxmBuffer[%d][%d] = %x\n", i, j,
- le32_to_cpu(*(unsigned int *)
- lp->TxmBuffer[i][j]));
- }
- }
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
- printk("RcvBuffer[%d][%d] = %x\n", i, j,
- le32_to_cpu(*(unsigned int *)
- lp->RcvBuffer[i][j]));
- }
- }
- printk("lp->evm_saa9730_regs->InterruptBlock1 = %x\n",
- readl(&lp->evm_saa9730_regs->InterruptBlock1));
- printk("lp->evm_saa9730_regs->InterruptStatus1 = %x\n",
- readl(&lp->evm_saa9730_regs->InterruptStatus1));
- printk("lp->evm_saa9730_regs->InterruptEnable1 = %x\n",
- readl(&lp->evm_saa9730_regs->InterruptEnable1));
- printk("lp->lan_saa9730_regs->Ok2Use = %x\n",
- readl(&lp->lan_saa9730_regs->Ok2Use));
- printk("lp->NextTxmBufferIndex = %x\n", lp->NextTxmBufferIndex);
- printk("lp->NextTxmPacketIndex = %x\n", lp->NextTxmPacketIndex);
- printk("lp->PendingTxmBufferIndex = %x\n",
- lp->PendingTxmBufferIndex);
- printk("lp->PendingTxmPacketIndex = %x\n",
- lp->PendingTxmPacketIndex);
- printk("lp->lan_saa9730_regs->LanDmaCtl = %x\n",
- readl(&lp->lan_saa9730_regs->LanDmaCtl));
- printk("lp->lan_saa9730_regs->DmaStatus = %x\n",
- readl(&lp->lan_saa9730_regs->DmaStatus));
- printk("lp->lan_saa9730_regs->CamCtl = %x\n",
- readl(&lp->lan_saa9730_regs->CamCtl));
- printk("lp->lan_saa9730_regs->TxCtl = %x\n",
- readl(&lp->lan_saa9730_regs->TxCtl));
- printk("lp->lan_saa9730_regs->TxStatus = %x\n",
- readl(&lp->lan_saa9730_regs->TxStatus));
- printk("lp->lan_saa9730_regs->RxCtl = %x\n",
- readl(&lp->lan_saa9730_regs->RxCtl));
- printk("lp->lan_saa9730_regs->RxStatus = %x\n",
- readl(&lp->lan_saa9730_regs->RxStatus));
-
- for (i = 0; i < LAN_SAA9730_CAM_DWORDS; i++) {
- writel(i, &lp->lan_saa9730_regs->CamAddress);
- printk("lp->lan_saa9730_regs->CamData = %x\n",
- readl(&lp->lan_saa9730_regs->CamData));
- }
-
- printk("dev->stats.tx_packets = %lx\n", dev->stats.tx_packets);
- printk("dev->stats.tx_errors = %lx\n", dev->stats.tx_errors);
- printk("dev->stats.tx_aborted_errors = %lx\n",
- dev->stats.tx_aborted_errors);
- printk("dev->stats.tx_window_errors = %lx\n",
- dev->stats.tx_window_errors);
- printk("dev->stats.tx_carrier_errors = %lx\n",
- dev->stats.tx_carrier_errors);
- printk("dev->stats.tx_fifo_errors = %lx\n",
- dev->stats.tx_fifo_errors);
- printk("dev->stats.tx_heartbeat_errors = %lx\n",
- dev->stats.tx_heartbeat_errors);
- printk("dev->stats.collisions = %lx\n", dev->stats.collisions);
-
- printk("dev->stats.rx_packets = %lx\n", dev->stats.rx_packets);
- printk("dev->stats.rx_errors = %lx\n", dev->stats.rx_errors);
- printk("dev->stats.rx_dropped = %lx\n", dev->stats.rx_dropped);
- printk("dev->stats.rx_crc_errors = %lx\n", dev->stats.rx_crc_errors);
- printk("dev->stats.rx_frame_errors = %lx\n",
- dev->stats.rx_frame_errors);
- printk("dev->stats.rx_fifo_errors = %lx\n",
- dev->stats.rx_fifo_errors);
- printk("dev->stats.rx_length_errors = %lx\n",
- dev->stats.rx_length_errors);
-
- printk("lp->lan_saa9730_regs->DebugPCIMasterAddr = %x\n",
- readl(&lp->lan_saa9730_regs->DebugPCIMasterAddr));
- printk("lp->lan_saa9730_regs->DebugLanTxStateMachine = %x\n",
- readl(&lp->lan_saa9730_regs->DebugLanTxStateMachine));
- printk("lp->lan_saa9730_regs->DebugLanRxStateMachine = %x\n",
- readl(&lp->lan_saa9730_regs->DebugLanRxStateMachine));
- printk("lp->lan_saa9730_regs->DebugLanTxFifoPointers = %x\n",
- readl(&lp->lan_saa9730_regs->DebugLanTxFifoPointers));
- printk("lp->lan_saa9730_regs->DebugLanRxFifoPointers = %x\n",
- readl(&lp->lan_saa9730_regs->DebugLanRxFifoPointers));
- printk("lp->lan_saa9730_regs->DebugLanCtlStateMachine = %x\n",
- readl(&lp->lan_saa9730_regs->DebugLanCtlStateMachine));
-}
-
-static void lan_saa9730_buffer_init(struct lan_saa9730_private *lp)
-{
- int i, j;
-
- /* Init RX buffers */
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
- *(unsigned int *) lp->RcvBuffer[i][j] =
- cpu_to_le32(RXSF_READY <<
- RX_STAT_CTL_OWNER_SHF);
- }
- }
-
- /* Init TX buffers */
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
- *(unsigned int *) lp->TxmBuffer[i][j] =
- cpu_to_le32(TXSF_EMPTY <<
- TX_STAT_CTL_OWNER_SHF);
- }
- }
-}
-
-static void lan_saa9730_free_buffers(struct pci_dev *pdev,
- struct lan_saa9730_private *lp)
-{
- pci_free_consistent(pdev, lp->buffer_size, lp->buffer_start,
- lp->dma_addr);
-}
-
-static int lan_saa9730_allocate_buffers(struct pci_dev *pdev,
- struct lan_saa9730_private *lp)
-{
- void *Pa;
- unsigned int i, j, rxoffset, txoffset;
- int ret;
-
- /* Initialize buffer space */
- lp->DmaRcvPackets = LAN_SAA9730_RCV_Q_SIZE;
- lp->DmaTxmPackets = LAN_SAA9730_TXM_Q_SIZE;
-
- /* Initialize Rx Buffer Index */
- lp->NextRcvPacketIndex = 0;
- lp->NextRcvBufferIndex = 0;
-
- /* Set current buffer index & next available packet index */
- lp->NextTxmPacketIndex = 0;
- lp->NextTxmBufferIndex = 0;
- lp->PendingTxmPacketIndex = 0;
- lp->PendingTxmBufferIndex = 0;
-
- /*
- * Allocate all RX and TX packets in one chunk.
- * The Rx and Tx packets must be PACKET_SIZE aligned.
- */
- lp->buffer_size = ((LAN_SAA9730_RCV_Q_SIZE + LAN_SAA9730_TXM_Q_SIZE) *
- LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_BUFFERS) +
- LAN_SAA9730_PACKET_SIZE;
- lp->buffer_start = pci_alloc_consistent(pdev, lp->buffer_size,
- &lp->dma_addr);
- if (!lp->buffer_start) {
- ret = -ENOMEM;
- goto out;
- }
-
- Pa = (void *)ALIGN((unsigned long)lp->buffer_start,
- LAN_SAA9730_PACKET_SIZE);
-
- rxoffset = Pa - lp->buffer_start;
-
- /* Init RX buffers */
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
- *(unsigned int *) Pa =
- cpu_to_le32(RXSF_READY <<
- RX_STAT_CTL_OWNER_SHF);
- lp->RcvBuffer[i][j] = Pa;
- Pa += LAN_SAA9730_PACKET_SIZE;
- }
- }
-
- txoffset = Pa - lp->buffer_start;
-
- /* Init TX buffers */
- for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
- for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
- *(unsigned int *) Pa =
- cpu_to_le32(TXSF_EMPTY <<
- TX_STAT_CTL_OWNER_SHF);
- lp->TxmBuffer[i][j] = Pa;
- Pa += LAN_SAA9730_PACKET_SIZE;
- }
- }
-
- /*
- * Set rx buffer A and rx buffer B to point to the first two buffer
- * spaces.
- */
- writel(lp->dma_addr + rxoffset, &lp->lan_saa9730_regs->RxBuffA);
- writel(lp->dma_addr + rxoffset +
- LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_RCV_Q_SIZE,
- &lp->lan_saa9730_regs->RxBuffB);
-
- /*
- * Set txm_buf_a and txm_buf_b to point to the first two buffer
- * space
- */
- writel(lp->dma_addr + txoffset,
- &lp->lan_saa9730_regs->TxBuffA);
- writel(lp->dma_addr + txoffset +
- LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_TXM_Q_SIZE,
- &lp->lan_saa9730_regs->TxBuffB);
-
- /* Set packet number */
- writel((lp->DmaRcvPackets << PK_COUNT_RX_A_SHF) |
- (lp->DmaRcvPackets << PK_COUNT_RX_B_SHF) |
- (lp->DmaTxmPackets << PK_COUNT_TX_A_SHF) |
- (lp->DmaTxmPackets << PK_COUNT_TX_B_SHF),
- &lp->lan_saa9730_regs->PacketCount);
-
- return 0;
-
-out:
- return ret;
-}
-
-static int lan_saa9730_cam_load(struct lan_saa9730_private *lp)
-{
- unsigned int i;
- unsigned char *NetworkAddress;
-
- NetworkAddress = (unsigned char *) &lp->PhysicalAddress[0][0];
-
- for (i = 0; i < LAN_SAA9730_CAM_DWORDS; i++) {
- /* First set address to where data is written */
- writel(i, &lp->lan_saa9730_regs->CamAddress);
- writel((NetworkAddress[0] << 24) | (NetworkAddress[1] << 16) |
- (NetworkAddress[2] << 8) | NetworkAddress[3],
- &lp->lan_saa9730_regs->CamData);
- NetworkAddress += 4;
- }
- return 0;
-}
-
-static int lan_saa9730_cam_init(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- unsigned int i;
-
- /* Copy MAC-address into all entries. */
- for (i = 0; i < LAN_SAA9730_CAM_ENTRIES; i++) {
- memcpy((unsigned char *) lp->PhysicalAddress[i],
- (unsigned char *) dev->dev_addr, 6);
- }
-
- return 0;
-}
-
-static int lan_saa9730_mii_init(struct lan_saa9730_private *lp)
-{
- int i, l;
-
- /* Check link status, spin here till station is not busy. */
- i = 0;
- while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) & MD_CA_BUSY) {
- i++;
- if (i > 100) {
- printk("Error: lan_saa9730_mii_init: timeout\n");
- return -1;
- }
- mdelay(1); /* wait 1 ms. */
- }
-
- /* Now set the control and address register. */
- writel(MD_CA_BUSY | PHY_STATUS | PHY_ADDRESS << MD_CA_PHY_SHF,
- &lp->lan_saa9730_regs->StationMgmtCtl);
-
- /* check link status, spin here till station is not busy */
- i = 0;
- while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) & MD_CA_BUSY) {
- i++;
- if (i > 100) {
- printk("Error: lan_saa9730_mii_init: timeout\n");
- return -1;
- }
- mdelay(1); /* wait 1 ms. */
- }
-
- /* Wait for 1 ms. */
- mdelay(1);
-
- /* Check the link status. */
- if (readl(&lp->lan_saa9730_regs->StationMgmtData) &
- PHY_STATUS_LINK_UP) {
- /* Link is up. */
- return 0;
- } else {
- /* Link is down, reset the PHY first. */
-
- /* set PHY address = 'CONTROL' */
- writel(PHY_ADDRESS << MD_CA_PHY_SHF | MD_CA_WR | PHY_CONTROL,
- &lp->lan_saa9730_regs->StationMgmtCtl);
-
- /* Wait for 1 ms. */
- mdelay(1);
-
- /* set 'CONTROL' = force reset and renegotiate */
- writel(PHY_CONTROL_RESET | PHY_CONTROL_AUTO_NEG |
- PHY_CONTROL_RESTART_AUTO_NEG,
- &lp->lan_saa9730_regs->StationMgmtData);
-
- /* Wait for 50 ms. */
- mdelay(50);
-
- /* set 'BUSY' to start operation */
- writel(MD_CA_BUSY | PHY_ADDRESS << MD_CA_PHY_SHF | MD_CA_WR |
- PHY_CONTROL, &lp->lan_saa9730_regs->StationMgmtCtl);
-
- /* await completion */
- i = 0;
- while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) &
- MD_CA_BUSY) {
- i++;
- if (i > 100) {
- printk
- ("Error: lan_saa9730_mii_init: timeout\n");
- return -1;
- }
- mdelay(1); /* wait 1 ms. */
- }
-
- /* Wait for 1 ms. */
- mdelay(1);
-
- for (l = 0; l < 2; l++) {
- /* set PHY address = 'STATUS' */
- writel(MD_CA_BUSY | PHY_ADDRESS << MD_CA_PHY_SHF |
- PHY_STATUS,
- &lp->lan_saa9730_regs->StationMgmtCtl);
-
- /* await completion */
- i = 0;
- while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) &
- MD_CA_BUSY) {
- i++;
- if (i > 100) {
- printk
- ("Error: lan_saa9730_mii_init: timeout\n");
- return -1;
- }
- mdelay(1); /* wait 1 ms. */
- }
-
- /* wait for 3 sec. */
- mdelay(3000);
-
- /* check the link status */
- if (readl(&lp->lan_saa9730_regs->StationMgmtData) &
- PHY_STATUS_LINK_UP) {
- /* link is up */
- break;
- }
- }
- }
-
- return 0;
-}
-
-static int lan_saa9730_control_init(struct lan_saa9730_private *lp)
-{
- /* Initialize DMA control register. */
- writel((LANMB_ANY << DMA_CTL_MAX_XFER_SHF) |
- (LANEND_LITTLE << DMA_CTL_ENDIAN_SHF) |
- (LAN_SAA9730_RCV_Q_INT_THRESHOLD << DMA_CTL_RX_INT_COUNT_SHF)
- | DMA_CTL_RX_INT_TO_EN | DMA_CTL_RX_INT_EN |
- DMA_CTL_MAC_RX_INT_EN | DMA_CTL_MAC_TX_INT_EN,
- &lp->lan_saa9730_regs->LanDmaCtl);
-
- /* Initial MAC control register. */
- writel((MACCM_MII << MAC_CONTROL_CONN_SHF) | MAC_CONTROL_FULL_DUP,
- &lp->lan_saa9730_regs->MacCtl);
-
- /* Initialize CAM control register. */
- writel(CAM_CONTROL_COMP_EN | CAM_CONTROL_BROAD_ACC,
- &lp->lan_saa9730_regs->CamCtl);
-
- /*
- * Initialize CAM enable register, only turn on first entry, should
- * contain own addr.
- */
- writel(0x0001, &lp->lan_saa9730_regs->CamEnable);
-
- /* Initialize Tx control register */
- writel(TX_CTL_EN_COMP, &lp->lan_saa9730_regs->TxCtl);
-
- /* Initialize Rcv control register */
- writel(RX_CTL_STRIP_CRC, &lp->lan_saa9730_regs->RxCtl);
-
- /* Reset DMA engine */
- writel(DMA_TEST_SW_RESET, &lp->lan_saa9730_regs->DmaTest);
-
- return 0;
-}
-
-static int lan_saa9730_stop(struct lan_saa9730_private *lp)
-{
- int i;
-
- /* Stop DMA first */
- writel(readl(&lp->lan_saa9730_regs->LanDmaCtl) &
- ~(DMA_CTL_EN_TX_DMA | DMA_CTL_EN_RX_DMA),
- &lp->lan_saa9730_regs->LanDmaCtl);
-
- /* Set the SW Reset bits in DMA and MAC control registers */
- writel(DMA_TEST_SW_RESET, &lp->lan_saa9730_regs->DmaTest);
- writel(readl(&lp->lan_saa9730_regs->MacCtl) | MAC_CONTROL_RESET,
- &lp->lan_saa9730_regs->MacCtl);
-
- /*
- * Wait for MAC reset to have finished. The reset bit is auto cleared
- * when the reset is done.
- */
- i = 0;
- while (readl(&lp->lan_saa9730_regs->MacCtl) & MAC_CONTROL_RESET) {
- i++;
- if (i > 100) {
- printk
- ("Error: lan_sa9730_stop: MAC reset timeout\n");
- return -1;
- }
- mdelay(1); /* wait 1 ms. */
- }
-
- return 0;
-}
-
-static int lan_saa9730_dma_init(struct lan_saa9730_private *lp)
-{
- /* Stop lan controller. */
- lan_saa9730_stop(lp);
-
- writel(LAN_SAA9730_DEFAULT_TIME_OUT_CNT,
- &lp->lan_saa9730_regs->Timeout);
-
- return 0;
-}
-
-static int lan_saa9730_start(struct lan_saa9730_private *lp)
-{
- lan_saa9730_buffer_init(lp);
-
- /* Initialize Rx Buffer Index */
- lp->NextRcvPacketIndex = 0;
- lp->NextRcvBufferIndex = 0;
-
- /* Set current buffer index & next available packet index */
- lp->NextTxmPacketIndex = 0;
- lp->NextTxmBufferIndex = 0;
- lp->PendingTxmPacketIndex = 0;
- lp->PendingTxmBufferIndex = 0;
-
- writel(readl(&lp->lan_saa9730_regs->LanDmaCtl) | DMA_CTL_EN_TX_DMA |
- DMA_CTL_EN_RX_DMA, &lp->lan_saa9730_regs->LanDmaCtl);
-
- /* For Tx, turn on MAC then DMA */
- writel(readl(&lp->lan_saa9730_regs->TxCtl) | TX_CTL_TX_EN,
- &lp->lan_saa9730_regs->TxCtl);
-
- /* For Rx, turn on DMA then MAC */
- writel(readl(&lp->lan_saa9730_regs->RxCtl) | RX_CTL_RX_EN,
- &lp->lan_saa9730_regs->RxCtl);
-
- /* Set Ok2Use to let hardware own the buffers. */
- writel(OK2USE_RX_A | OK2USE_RX_B, &lp->lan_saa9730_regs->Ok2Use);
-
- return 0;
-}
-
-static int lan_saa9730_restart(struct lan_saa9730_private *lp)
-{
- lan_saa9730_stop(lp);
- lan_saa9730_start(lp);
-
- return 0;
-}
-
-static int lan_saa9730_tx(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- unsigned int *pPacket;
- unsigned int tx_status;
-
- if (lan_saa9730_debug > 5)
- printk("lan_saa9730_tx interrupt\n");
-
- /* Clear interrupt. */
- writel(DMA_STATUS_MAC_TX_INT, &lp->lan_saa9730_regs->DmaStatus);
-
- while (1) {
- pPacket = lp->TxmBuffer[lp->PendingTxmBufferIndex]
- [lp->PendingTxmPacketIndex];
-
- /* Get status of first packet transmitted. */
- tx_status = le32_to_cpu(*pPacket);
-
- /* Check ownership. */
- if ((tx_status & TX_STAT_CTL_OWNER_MSK) !=
- (TXSF_HWDONE << TX_STAT_CTL_OWNER_SHF)) break;
-
- /* Check for error. */
- if (tx_status & TX_STAT_CTL_ERROR_MSK) {
- if (lan_saa9730_debug > 1)
- printk("lan_saa9730_tx: tx error = %x\n",
- tx_status);
-
- dev->stats.tx_errors++;
- if (tx_status &
- (TX_STATUS_EX_COLL << TX_STAT_CTL_STATUS_SHF))
- dev->stats.tx_aborted_errors++;
- if (tx_status &
- (TX_STATUS_LATE_COLL << TX_STAT_CTL_STATUS_SHF))
- dev->stats.tx_window_errors++;
- if (tx_status &
- (TX_STATUS_L_CARR << TX_STAT_CTL_STATUS_SHF))
- dev->stats.tx_carrier_errors++;
- if (tx_status &
- (TX_STATUS_UNDER << TX_STAT_CTL_STATUS_SHF))
- dev->stats.tx_fifo_errors++;
- if (tx_status &
- (TX_STATUS_SQ_ERR << TX_STAT_CTL_STATUS_SHF))
- dev->stats.tx_heartbeat_errors++;
-
- dev->stats.collisions +=
- tx_status & TX_STATUS_TX_COLL_MSK;
- }
-
- /* Free buffer. */
- *pPacket =
- cpu_to_le32(TXSF_EMPTY << TX_STAT_CTL_OWNER_SHF);
-
- /* Update pending index pointer. */
- lp->PendingTxmPacketIndex++;
- if (lp->PendingTxmPacketIndex >= LAN_SAA9730_TXM_Q_SIZE) {
- lp->PendingTxmPacketIndex = 0;
- lp->PendingTxmBufferIndex ^= 1;
- }
- }
-
- /* The tx buffer is no longer full. */
- netif_wake_queue(dev);
-
- return 0;
-}
-
-static int lan_saa9730_rx(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- int len = 0;
- struct sk_buff *skb = 0;
- unsigned int rx_status;
- int BufferIndex;
- int PacketIndex;
- unsigned int *pPacket;
- unsigned char *pData;
-
- if (lan_saa9730_debug > 5)
- printk("lan_saa9730_rx interrupt\n");
-
- /* Clear receive interrupts. */
- writel(DMA_STATUS_MAC_RX_INT | DMA_STATUS_RX_INT |
- DMA_STATUS_RX_TO_INT, &lp->lan_saa9730_regs->DmaStatus);
-
- /* Address next packet */
- BufferIndex = lp->NextRcvBufferIndex;
- PacketIndex = lp->NextRcvPacketIndex;
- pPacket = lp->RcvBuffer[BufferIndex][PacketIndex];
- rx_status = le32_to_cpu(*pPacket);
-
- /* Process each packet. */
- while ((rx_status & RX_STAT_CTL_OWNER_MSK) ==
- (RXSF_HWDONE << RX_STAT_CTL_OWNER_SHF)) {
- /* Check the rx status. */
- if (rx_status & (RX_STATUS_GOOD << RX_STAT_CTL_STATUS_SHF)) {
- /* Received packet is good. */
- len = (rx_status & RX_STAT_CTL_LENGTH_MSK) >>
- RX_STAT_CTL_LENGTH_SHF;
-
- pData = (unsigned char *) pPacket;
- pData += 4;
- skb = dev_alloc_skb(len + 2);
- if (skb == 0) {
- printk
- ("%s: Memory squeeze, deferring packet.\n",
- dev->name);
- dev->stats.rx_dropped++;
- } else {
- dev->stats.rx_bytes += len;
- dev->stats.rx_packets++;
- skb_reserve(skb, 2); /* 16 byte align */
- skb_put(skb, len); /* make room */
- skb_copy_to_linear_data(skb,
- (unsigned char *) pData,
- len);
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- }
- } else {
- /* We got an error packet. */
- if (lan_saa9730_debug > 2)
- printk
- ("lan_saa9730_rx: We got an error packet = %x\n",
- rx_status);
-
- dev->stats.rx_errors++;
- if (rx_status &
- (RX_STATUS_CRC_ERR << RX_STAT_CTL_STATUS_SHF))
- dev->stats.rx_crc_errors++;
- if (rx_status &
- (RX_STATUS_ALIGN_ERR << RX_STAT_CTL_STATUS_SHF))
- dev->stats.rx_frame_errors++;
- if (rx_status &
- (RX_STATUS_OVERFLOW << RX_STAT_CTL_STATUS_SHF))
- dev->stats.rx_fifo_errors++;
- if (rx_status &
- (RX_STATUS_LONG_ERR << RX_STAT_CTL_STATUS_SHF))
- dev->stats.rx_length_errors++;
- }
-
- /* Indicate we have processed the buffer. */
- *pPacket = cpu_to_le32(RXSF_READY << RX_STAT_CTL_OWNER_SHF);
-
- /* Make sure A or B is available to hardware as appropriate. */
- writel(BufferIndex ? OK2USE_RX_B : OK2USE_RX_A,
- &lp->lan_saa9730_regs->Ok2Use);
-
- /* Go to next packet in sequence. */
- lp->NextRcvPacketIndex++;
- if (lp->NextRcvPacketIndex >= LAN_SAA9730_RCV_Q_SIZE) {
- lp->NextRcvPacketIndex = 0;
- lp->NextRcvBufferIndex ^= 1;
- }
-
- /* Address next packet */
- BufferIndex = lp->NextRcvBufferIndex;
- PacketIndex = lp->NextRcvPacketIndex;
- pPacket = lp->RcvBuffer[BufferIndex][PacketIndex];
- rx_status = le32_to_cpu(*pPacket);
- }
-
- return 0;
-}
-
-static irqreturn_t lan_saa9730_interrupt(const int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- if (lan_saa9730_debug > 5)
- printk("lan_saa9730_interrupt\n");
-
- /* Disable the EVM LAN interrupt. */
- evm_saa9730_block_lan_int(lp);
-
- /* Clear the EVM LAN interrupt. */
- evm_saa9730_clear_lan_int(lp);
-
- /* Service pending transmit interrupts. */
- if (readl(&lp->lan_saa9730_regs->DmaStatus) & DMA_STATUS_MAC_TX_INT)
- lan_saa9730_tx(dev);
-
- /* Service pending receive interrupts. */
- if (readl(&lp->lan_saa9730_regs->DmaStatus) &
- (DMA_STATUS_MAC_RX_INT | DMA_STATUS_RX_INT |
- DMA_STATUS_RX_TO_INT)) lan_saa9730_rx(dev);
-
- /* Enable the EVM LAN interrupt. */
- evm_saa9730_unblock_lan_int(lp);
-
- return IRQ_HANDLED;
-}
-
-static int lan_saa9730_open(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- /* Associate IRQ with lan_saa9730_interrupt */
- if (request_irq(dev->irq, &lan_saa9730_interrupt, 0, "SAA9730 Eth",
- dev)) {
- printk("lan_saa9730_open: Can't get irq %d\n", dev->irq);
- return -EAGAIN;
- }
-
- /* Enable the Lan interrupt in the event manager. */
- evm_saa9730_enable_lan_int(lp);
-
- /* Start the LAN controller */
- if (lan_saa9730_start(lp))
- return -1;
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-static int lan_saa9730_write(struct lan_saa9730_private *lp,
- struct sk_buff *skb, int skblen)
-{
- unsigned char *pbData = skb->data;
- unsigned int len = skblen;
- unsigned char *pbPacketData;
- unsigned int tx_status;
- int BufferIndex;
- int PacketIndex;
-
- if (lan_saa9730_debug > 5)
- printk("lan_saa9730_write: skb=%p\n", skb);
-
- BufferIndex = lp->NextTxmBufferIndex;
- PacketIndex = lp->NextTxmPacketIndex;
-
- tx_status = le32_to_cpu(*(unsigned int *)lp->TxmBuffer[BufferIndex]
- [PacketIndex]);
- if ((tx_status & TX_STAT_CTL_OWNER_MSK) !=
- (TXSF_EMPTY << TX_STAT_CTL_OWNER_SHF)) {
- if (lan_saa9730_debug > 4)
- printk
- ("lan_saa9730_write: Tx buffer not available: tx_status = %x\n",
- tx_status);
- return -1;
- }
-
- lp->NextTxmPacketIndex++;
- if (lp->NextTxmPacketIndex >= LAN_SAA9730_TXM_Q_SIZE) {
- lp->NextTxmPacketIndex = 0;
- lp->NextTxmBufferIndex ^= 1;
- }
-
- pbPacketData = lp->TxmBuffer[BufferIndex][PacketIndex];
- pbPacketData += 4;
-
- /* copy the bits */
- memcpy(pbPacketData, pbData, len);
-
- /* Set transmit status for hardware */
- *(unsigned int *)lp->TxmBuffer[BufferIndex][PacketIndex] =
- cpu_to_le32((TXSF_READY << TX_STAT_CTL_OWNER_SHF) |
- (TX_STAT_CTL_INT_AFTER_TX <<
- TX_STAT_CTL_FRAME_SHF) |
- (len << TX_STAT_CTL_LENGTH_SHF));
-
- /* Make sure A or B is available to hardware as appropriate. */
- writel(BufferIndex ? OK2USE_TX_B : OK2USE_TX_A,
- &lp->lan_saa9730_regs->Ok2Use);
-
- return 0;
-}
-
-static void lan_saa9730_tx_timeout(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- /* Transmitter timeout, serious problems */
- dev->stats.tx_errors++;
- printk("%s: transmit timed out, reset\n", dev->name);
- /*show_saa9730_regs(dev); */
- lan_saa9730_restart(lp);
-
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
-}
-
-static int lan_saa9730_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- unsigned long flags;
- int skblen;
- int len;
-
- if (lan_saa9730_debug > 4)
- printk("Send packet: skb=%p\n", skb);
-
- skblen = skb->len;
-
- spin_lock_irqsave(&lp->lock, flags);
-
- len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
-
- if (lan_saa9730_write(lp, skb, skblen)) {
- spin_unlock_irqrestore(&lp->lock, flags);
- printk("Error when writing packet to controller: skb=%p\n", skb);
- netif_stop_queue(dev);
- return -1;
- }
-
- dev->stats.tx_bytes += len;
- dev->stats.tx_packets++;
-
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
- dev_kfree_skb(skb);
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return 0;
-}
-
-static int lan_saa9730_close(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- if (lan_saa9730_debug > 1)
- printk("lan_saa9730_close:\n");
-
- netif_stop_queue(dev);
-
- /* Disable the Lan interrupt in the event manager. */
- evm_saa9730_disable_lan_int(lp);
-
- /* Stop the controller */
- if (lan_saa9730_stop(lp))
- return -1;
-
- free_irq(dev->irq, (void *) dev);
-
- return 0;
-}
-
-static void lan_saa9730_set_multicast(struct net_device *dev)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- /* Stop the controller */
- lan_saa9730_stop(lp);
-
- if (dev->flags & IFF_PROMISC) {
- /* accept all packets */
- writel(CAM_CONTROL_COMP_EN | CAM_CONTROL_STATION_ACC |
- CAM_CONTROL_GROUP_ACC | CAM_CONTROL_BROAD_ACC,
- &lp->lan_saa9730_regs->CamCtl);
- } else {
- if (dev->flags & IFF_ALLMULTI || dev->mc_count) {
- /* accept all multicast packets */
- /*
- * Will handle the multicast stuff later. -carstenl
- */
- writel(CAM_CONTROL_COMP_EN | CAM_CONTROL_GROUP_ACC |
- CAM_CONTROL_BROAD_ACC,
- &lp->lan_saa9730_regs->CamCtl);
- }
- }
-
- lan_saa9730_restart(lp);
-}
-
-
-static void __devexit saa9730_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct lan_saa9730_private *lp = netdev_priv(dev);
-
- if (dev) {
- unregister_netdev(dev);
- lan_saa9730_free_buffers(pdev, lp);
- iounmap(lp->lan_saa9730_regs);
- iounmap(lp->evm_saa9730_regs);
- free_netdev(dev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-
-static int lan_saa9730_init(struct net_device *dev, struct pci_dev *pdev,
- unsigned long ioaddr, int irq)
-{
- struct lan_saa9730_private *lp = netdev_priv(dev);
- unsigned char ethernet_addr[6];
- int ret;
-
- if (get_ethernet_addr(ethernet_addr)) {
- ret = -ENODEV;
- goto out;
- }
-
- memcpy(dev->dev_addr, ethernet_addr, 6);
- dev->base_addr = ioaddr;
- dev->irq = irq;
-
- lp->pci_dev = pdev;
-
- /* Set SAA9730 LAN base address. */
- lp->lan_saa9730_regs = ioremap(ioaddr + SAA9730_LAN_REGS_ADDR,
- SAA9730_LAN_REGS_SIZE);
- if (!lp->lan_saa9730_regs) {
- ret = -ENOMEM;
- goto out;
- }
-
- /* Set SAA9730 EVM base address. */
- lp->evm_saa9730_regs = ioremap(ioaddr + SAA9730_EVM_REGS_ADDR,
- SAA9730_EVM_REGS_SIZE);
- if (!lp->evm_saa9730_regs) {
- ret = -ENOMEM;
- goto out_iounmap_lan;
- }
-
- /* Allocate LAN RX/TX frame buffer space. */
- if ((ret = lan_saa9730_allocate_buffers(pdev, lp)))
- goto out_iounmap;
-
- /* Stop LAN controller. */
- if ((ret = lan_saa9730_stop(lp)))
- goto out_free_consistent;
-
- /* Initialize CAM registers. */
- if ((ret = lan_saa9730_cam_init(dev)))
- goto out_free_consistent;
-
- /* Initialize MII registers. */
- if ((ret = lan_saa9730_mii_init(lp)))
- goto out_free_consistent;
-
- /* Initialize control registers. */
- if ((ret = lan_saa9730_control_init(lp)))
- goto out_free_consistent;
-
- /* Load CAM registers. */
- if ((ret = lan_saa9730_cam_load(lp)))
- goto out_free_consistent;
-
- /* Initialize DMA context registers. */
- if ((ret = lan_saa9730_dma_init(lp)))
- goto out_free_consistent;
-
- spin_lock_init(&lp->lock);
-
- dev->open = lan_saa9730_open;
- dev->hard_start_xmit = lan_saa9730_start_xmit;
- dev->stop = lan_saa9730_close;
- dev->set_multicast_list = lan_saa9730_set_multicast;
- dev->tx_timeout = lan_saa9730_tx_timeout;
- dev->watchdog_timeo = (HZ >> 1);
- dev->dma = 0;
-
- ret = register_netdev (dev);
- if (ret)
- goto out_free_consistent;
-
- return 0;
-
-out_free_consistent:
- lan_saa9730_free_buffers(pdev, lp);
-out_iounmap:
- iounmap(lp->evm_saa9730_regs);
-out_iounmap_lan:
- iounmap(lp->lan_saa9730_regs);
-out:
- return ret;
-}
-
-
-static int __devinit saa9730_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct net_device *dev = NULL;
- unsigned long pci_ioaddr;
- int err;
-
- if (lan_saa9730_debug > 1)
- printk("saa9730.c: PCI bios is present, checking for devices...\n");
-
- err = pci_enable_device(pdev);
- if (err) {
- printk(KERN_ERR "Cannot enable PCI device, aborting.\n");
- goto out;
- }
-
- err = pci_request_regions(pdev, DRV_MODULE_NAME);
- if (err) {
- printk(KERN_ERR "Cannot obtain PCI resources, aborting.\n");
- goto out_disable_pdev;
- }
-
- pci_irq_line = pdev->irq;
- /* LAN base address in located at BAR 1. */
-
- pci_ioaddr = pci_resource_start(pdev, 1);
- pci_set_master(pdev);
-
- printk("Found SAA9730 (PCI) at %lx, irq %d.\n",
- pci_ioaddr, pci_irq_line);
-
- dev = alloc_etherdev(sizeof(struct lan_saa9730_private));
- if (!dev)
- goto out_disable_pdev;
-
- err = lan_saa9730_init(dev, pdev, pci_ioaddr, pci_irq_line);
- if (err) {
- printk("LAN init failed");
- goto out_free_netdev;
- }
-
- pci_set_drvdata(pdev, dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
- return 0;
-
-out_free_netdev:
- free_netdev(dev);
-out_disable_pdev:
- pci_disable_device(pdev);
-out:
- pci_set_drvdata(pdev, NULL);
- return err;
-}
-
-
-static struct pci_driver saa9730_driver = {
- .name = DRV_MODULE_NAME,
- .id_table = saa9730_pci_tbl,
- .probe = saa9730_init_one,
- .remove = __devexit_p(saa9730_remove_one),
-};
-
-
-static int __init saa9730_init(void)
-{
- return pci_register_driver(&saa9730_driver);
-}
-
-static void __exit saa9730_cleanup(void)
-{
- pci_unregister_driver(&saa9730_driver);
-}
-
-module_init(saa9730_init);
-module_exit(saa9730_cleanup);
-
-MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
-MODULE_DESCRIPTION("Philips SAA9730 ethernet driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright (C) 2000, 2005 MIPS Technologies, Inc. All rights reserved.
- * Authors: Carsten Langgaard <carstenl@mips.com>
- * Maciej W. Rozycki <macro@mips.com>
- *
- * ########################################################################
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- *
- * SAA9730 ethernet driver description.
- *
- */
-#ifndef _SAA9730_H
-#define _SAA9730_H
-
-
-/* Number of 6-byte entries in the CAM. */
-#define LAN_SAA9730_CAM_ENTRIES 10
-#define LAN_SAA9730_CAM_DWORDS ((LAN_SAA9730_CAM_ENTRIES*6)/4)
-
-/* TX and RX packet size: fixed to 2048 bytes, according to HW requirements. */
-#define LAN_SAA9730_PACKET_SIZE 2048
-
-/*
- * Number of TX buffers = number of RX buffers = 2, which is fixed according
- * to HW requirements.
- */
-#define LAN_SAA9730_BUFFERS 2
-
-/* Number of RX packets per RX buffer. */
-#define LAN_SAA9730_RCV_Q_SIZE 15
-
-/* Number of TX packets per TX buffer. */
-#define LAN_SAA9730_TXM_Q_SIZE 15
-
-/*
- * We get an interrupt for each LAN_SAA9730_DEFAULT_RCV_Q_INT_THRESHOLD
- * packets received.
- * If however we receive less than LAN_SAA9730_DEFAULT_RCV_Q_INT_THRESHOLD
- * packets, the hardware can timeout after a certain time and still tell
- * us packets have arrived.
- * The timeout value in unit of 32 PCI clocks (33Mhz).
- * The value 200 approximates 0.0002 seconds.
- */
-#define LAN_SAA9730_RCV_Q_INT_THRESHOLD 1
-#define LAN_SAA9730_DEFAULT_TIME_OUT_CNT 10
-
-#define RXSF_NDIS 0
-#define RXSF_READY 2
-#define RXSF_HWDONE 3
-
-#define TXSF_EMPTY 0
-#define TXSF_READY 2
-#define TXSF_HWDONE 3
-
-#define LANEND_LITTLE 0
-#define LANEND_BIG_2143 1
-#define LANEND_BIG_4321 2
-
-#define LANMB_ANY 0
-#define LANMB_8 1
-#define LANMB_32 2
-#define LANMB_64 3
-
-#define MACCM_AUTOMATIC 0
-#define MACCM_10MB 1
-#define MACCM_MII 2
-
-/*
- * PHY definitions for Basic registers of QS6612 (used on MIPS ATLAS board)
- */
-#define PHY_CONTROL 0x0
-#define PHY_STATUS 0x1
-#define PHY_STATUS_LINK_UP 0x4
-#define PHY_CONTROL_RESET 0x8000
-#define PHY_CONTROL_AUTO_NEG 0x1000
-#define PHY_CONTROL_RESTART_AUTO_NEG 0x0200
-#define PHY_ADDRESS 0x0
-
-/* PK_COUNT register. */
-#define PK_COUNT_TX_A_SHF 24
-#define PK_COUNT_TX_A_MSK (0xff << PK_COUNT_TX_A_SHF)
-#define PK_COUNT_TX_B_SHF 16
-#define PK_COUNT_TX_B_MSK (0xff << PK_COUNT_TX_B_SHF)
-#define PK_COUNT_RX_A_SHF 8
-#define PK_COUNT_RX_A_MSK (0xff << PK_COUNT_RX_A_SHF)
-#define PK_COUNT_RX_B_SHF 0
-#define PK_COUNT_RX_B_MSK (0xff << PK_COUNT_RX_B_SHF)
-
-/* OK2USE register. */
-#define OK2USE_TX_A 0x8
-#define OK2USE_TX_B 0x4
-#define OK2USE_RX_A 0x2
-#define OK2USE_RX_B 0x1
-
-/* LAN DMA CONTROL register. */
-#define DMA_CTL_BLK_INT 0x80000000
-#define DMA_CTL_MAX_XFER_SHF 18
-#define DMA_CTL_MAX_XFER_MSK (0x3 << LAN_DMA_CTL_MAX_XFER_SHF)
-#define DMA_CTL_ENDIAN_SHF 16
-#define DMA_CTL_ENDIAN_MSK (0x3 << LAN_DMA_CTL_ENDIAN_SHF)
-#define DMA_CTL_RX_INT_COUNT_SHF 8
-#define DMA_CTL_RX_INT_COUNT_MSK (0xff << LAN_DMA_CTL_RX_INT_COUNT_SHF)
-#define DMA_CTL_EN_TX_DMA 0x00000080
-#define DMA_CTL_EN_RX_DMA 0x00000040
-#define DMA_CTL_RX_INT_BUFFUL_EN 0x00000020
-#define DMA_CTL_RX_INT_TO_EN 0x00000010
-#define DMA_CTL_RX_INT_EN 0x00000008
-#define DMA_CTL_TX_INT_EN 0x00000004
-#define DMA_CTL_MAC_TX_INT_EN 0x00000002
-#define DMA_CTL_MAC_RX_INT_EN 0x00000001
-
-/* DMA STATUS register. */
-#define DMA_STATUS_BAD_ADDR_SHF 16
-#define DMA_STATUS_BAD_ADDR_MSK (0xf << DMA_STATUS_BAD_ADDR_SHF)
-#define DMA_STATUS_RX_PKTS_RECEIVED_SHF 8
-#define DMA_STATUS_RX_PKTS_RECEIVED_MSK (0xff << DMA_STATUS_RX_PKTS_RECEIVED_SHF)
-#define DMA_STATUS_TX_EN_SYNC 0x00000080
-#define DMA_STATUS_RX_BUF_A_FUL 0x00000040
-#define DMA_STATUS_RX_BUF_B_FUL 0x00000020
-#define DMA_STATUS_RX_TO_INT 0x00000010
-#define DMA_STATUS_RX_INT 0x00000008
-#define DMA_STATUS_TX_INT 0x00000004
-#define DMA_STATUS_MAC_TX_INT 0x00000002
-#define DMA_STATUS_MAC_RX_INT 0x00000001
-
-/* DMA TEST/PANIC SWITHES register. */
-#define DMA_TEST_LOOPBACK 0x01000000
-#define DMA_TEST_SW_RESET 0x00000001
-
-/* MAC CONTROL register. */
-#define MAC_CONTROL_EN_MISS_ROLL 0x00002000
-#define MAC_CONTROL_MISS_ROLL 0x00000400
-#define MAC_CONTROL_LOOP10 0x00000080
-#define MAC_CONTROL_CONN_SHF 5
-#define MAC_CONTROL_CONN_MSK (0x3 << MAC_CONTROL_CONN_SHF)
-#define MAC_CONTROL_MAC_LOOP 0x00000010
-#define MAC_CONTROL_FULL_DUP 0x00000008
-#define MAC_CONTROL_RESET 0x00000004
-#define MAC_CONTROL_HALT_IMM 0x00000002
-#define MAC_CONTROL_HALT_REQ 0x00000001
-
-/* CAM CONTROL register. */
-#define CAM_CONTROL_COMP_EN 0x00000010
-#define CAM_CONTROL_NEG_CAM 0x00000008
-#define CAM_CONTROL_BROAD_ACC 0x00000004
-#define CAM_CONTROL_GROUP_ACC 0x00000002
-#define CAM_CONTROL_STATION_ACC 0x00000001
-
-/* TRANSMIT CONTROL register. */
-#define TX_CTL_EN_COMP 0x00004000
-#define TX_CTL_EN_TX_PAR 0x00002000
-#define TX_CTL_EN_LATE_COLL 0x00001000
-#define TX_CTL_EN_EX_COLL 0x00000800
-#define TX_CTL_EN_L_CARR 0x00000400
-#define TX_CTL_EN_EX_DEFER 0x00000200
-#define TX_CTL_EN_UNDER 0x00000100
-#define TX_CTL_MII10 0x00000080
-#define TX_CTL_SD_PAUSE 0x00000040
-#define TX_CTL_NO_EX_DEF0 0x00000020
-#define TX_CTL_F_BACK 0x00000010
-#define TX_CTL_NO_CRC 0x00000008
-#define TX_CTL_NO_PAD 0x00000004
-#define TX_CTL_TX_HALT 0x00000002
-#define TX_CTL_TX_EN 0x00000001
-
-/* TRANSMIT STATUS register. */
-#define TX_STATUS_SQ_ERR 0x00010000
-#define TX_STATUS_TX_HALTED 0x00008000
-#define TX_STATUS_COMP 0x00004000
-#define TX_STATUS_TX_PAR 0x00002000
-#define TX_STATUS_LATE_COLL 0x00001000
-#define TX_STATUS_TX10_STAT 0x00000800
-#define TX_STATUS_L_CARR 0x00000400
-#define TX_STATUS_EX_DEFER 0x00000200
-#define TX_STATUS_UNDER 0x00000100
-#define TX_STATUS_IN_TX 0x00000080
-#define TX_STATUS_PAUSED 0x00000040
-#define TX_STATUS_TX_DEFERRED 0x00000020
-#define TX_STATUS_EX_COLL 0x00000010
-#define TX_STATUS_TX_COLL_SHF 0
-#define TX_STATUS_TX_COLL_MSK (0xf << TX_STATUS_TX_COLL_SHF)
-
-/* RECEIVE CONTROL register. */
-#define RX_CTL_EN_GOOD 0x00004000
-#define RX_CTL_EN_RX_PAR 0x00002000
-#define RX_CTL_EN_LONG_ERR 0x00000800
-#define RX_CTL_EN_OVER 0x00000400
-#define RX_CTL_EN_CRC_ERR 0x00000200
-#define RX_CTL_EN_ALIGN 0x00000100
-#define RX_CTL_IGNORE_CRC 0x00000040
-#define RX_CTL_PASS_CTL 0x00000020
-#define RX_CTL_STRIP_CRC 0x00000010
-#define RX_CTL_SHORT_EN 0x00000008
-#define RX_CTL_LONG_EN 0x00000004
-#define RX_CTL_RX_HALT 0x00000002
-#define RX_CTL_RX_EN 0x00000001
-
-/* RECEIVE STATUS register. */
-#define RX_STATUS_RX_HALTED 0x00008000
-#define RX_STATUS_GOOD 0x00004000
-#define RX_STATUS_RX_PAR 0x00002000
-#define RX_STATUS_LONG_ERR 0x00000800
-#define RX_STATUS_OVERFLOW 0x00000400
-#define RX_STATUS_CRC_ERR 0x00000200
-#define RX_STATUS_ALIGN_ERR 0x00000100
-#define RX_STATUS_RX10_STAT 0x00000080
-#define RX_STATUS_INT_RX 0x00000040
-#define RX_STATUS_CTL_RECD 0x00000020
-
-/* MD_CA register. */
-#define MD_CA_PRE_SUP 0x00001000
-#define MD_CA_BUSY 0x00000800
-#define MD_CA_WR 0x00000400
-#define MD_CA_PHY_SHF 5
-#define MD_CA_PHY_MSK (0x1f << MD_CA_PHY_SHF)
-#define MD_CA_ADDR_SHF 0
-#define MD_CA_ADDR_MSK (0x1f << MD_CA_ADDR_SHF)
-
-/* Tx Status/Control. */
-#define TX_STAT_CTL_OWNER_SHF 30
-#define TX_STAT_CTL_OWNER_MSK (0x3 << TX_STAT_CTL_OWNER_SHF)
-#define TX_STAT_CTL_FRAME_SHF 27
-#define TX_STAT_CTL_FRAME_MSK (0x7 << TX_STAT_CTL_FRAME_SHF)
-#define TX_STAT_CTL_STATUS_SHF 11
-#define TX_STAT_CTL_STATUS_MSK (0x1ffff << TX_STAT_CTL_STATUS_SHF)
-#define TX_STAT_CTL_LENGTH_SHF 0
-#define TX_STAT_CTL_LENGTH_MSK (0x7ff << TX_STAT_CTL_LENGTH_SHF)
-
-#define TX_STAT_CTL_ERROR_MSK ((TX_STATUS_SQ_ERR | \
- TX_STATUS_TX_HALTED | \
- TX_STATUS_TX_PAR | \
- TX_STATUS_LATE_COLL | \
- TX_STATUS_L_CARR | \
- TX_STATUS_EX_DEFER | \
- TX_STATUS_UNDER | \
- TX_STATUS_PAUSED | \
- TX_STATUS_TX_DEFERRED | \
- TX_STATUS_EX_COLL | \
- TX_STATUS_TX_COLL_MSK) \
- << TX_STAT_CTL_STATUS_SHF)
-#define TX_STAT_CTL_INT_AFTER_TX 0x4
-
-/* Rx Status/Control. */
-#define RX_STAT_CTL_OWNER_SHF 30
-#define RX_STAT_CTL_OWNER_MSK (0x3 << RX_STAT_CTL_OWNER_SHF)
-#define RX_STAT_CTL_STATUS_SHF 11
-#define RX_STAT_CTL_STATUS_MSK (0xffff << RX_STAT_CTL_STATUS_SHF)
-#define RX_STAT_CTL_LENGTH_SHF 0
-#define RX_STAT_CTL_LENGTH_MSK (0x7ff << RX_STAT_CTL_LENGTH_SHF)
-
-
-
-/* The SAA9730 (LAN) controller register map, as seen via the PCI-bus. */
-#define SAA9730_LAN_REGS_ADDR 0x20400
-#define SAA9730_LAN_REGS_SIZE 0x00400
-
-struct lan_saa9730_regmap {
- volatile unsigned int TxBuffA; /* 0x20400 */
- volatile unsigned int TxBuffB; /* 0x20404 */
- volatile unsigned int RxBuffA; /* 0x20408 */
- volatile unsigned int RxBuffB; /* 0x2040c */
- volatile unsigned int PacketCount; /* 0x20410 */
- volatile unsigned int Ok2Use; /* 0x20414 */
- volatile unsigned int LanDmaCtl; /* 0x20418 */
- volatile unsigned int Timeout; /* 0x2041c */
- volatile unsigned int DmaStatus; /* 0x20420 */
- volatile unsigned int DmaTest; /* 0x20424 */
- volatile unsigned char filler20428[0x20430 - 0x20428];
- volatile unsigned int PauseCount; /* 0x20430 */
- volatile unsigned int RemotePauseCount; /* 0x20434 */
- volatile unsigned char filler20438[0x20440 - 0x20438];
- volatile unsigned int MacCtl; /* 0x20440 */
- volatile unsigned int CamCtl; /* 0x20444 */
- volatile unsigned int TxCtl; /* 0x20448 */
- volatile unsigned int TxStatus; /* 0x2044c */
- volatile unsigned int RxCtl; /* 0x20450 */
- volatile unsigned int RxStatus; /* 0x20454 */
- volatile unsigned int StationMgmtData; /* 0x20458 */
- volatile unsigned int StationMgmtCtl; /* 0x2045c */
- volatile unsigned int CamAddress; /* 0x20460 */
- volatile unsigned int CamData; /* 0x20464 */
- volatile unsigned int CamEnable; /* 0x20468 */
- volatile unsigned char filler2046c[0x20500 - 0x2046c];
- volatile unsigned int DebugPCIMasterAddr; /* 0x20500 */
- volatile unsigned int DebugLanTxStateMachine; /* 0x20504 */
- volatile unsigned int DebugLanRxStateMachine; /* 0x20508 */
- volatile unsigned int DebugLanTxFifoPointers; /* 0x2050c */
- volatile unsigned int DebugLanRxFifoPointers; /* 0x20510 */
- volatile unsigned int DebugLanCtlStateMachine; /* 0x20514 */
-};
-typedef volatile struct lan_saa9730_regmap t_lan_saa9730_regmap;
-
-
-/* EVM interrupt control registers. */
-#define EVM_LAN_INT 0x00010000
-#define EVM_MASTER_EN 0x00000001
-
-/* The SAA9730 (EVM) controller register map, as seen via the PCI-bus. */
-#define SAA9730_EVM_REGS_ADDR 0x02000
-#define SAA9730_EVM_REGS_SIZE 0x00400
-
-struct evm_saa9730_regmap {
- volatile unsigned int InterruptStatus1; /* 0x2000 */
- volatile unsigned int InterruptEnable1; /* 0x2004 */
- volatile unsigned int InterruptMonitor1; /* 0x2008 */
- volatile unsigned int Counter; /* 0x200c */
- volatile unsigned int CounterThreshold; /* 0x2010 */
- volatile unsigned int CounterControl; /* 0x2014 */
- volatile unsigned int GpioControl1; /* 0x2018 */
- volatile unsigned int InterruptStatus2; /* 0x201c */
- volatile unsigned int InterruptEnable2; /* 0x2020 */
- volatile unsigned int InterruptMonitor2; /* 0x2024 */
- volatile unsigned int GpioControl2; /* 0x2028 */
- volatile unsigned int InterruptBlock1; /* 0x202c */
- volatile unsigned int InterruptBlock2; /* 0x2030 */
-};
-typedef volatile struct evm_saa9730_regmap t_evm_saa9730_regmap;
-
-
-struct lan_saa9730_private {
- /*
- * Rx/Tx packet buffers.
- * The Rx and Tx packets must be PACKET_SIZE aligned.
- */
- void *buffer_start;
- unsigned int buffer_size;
-
- /*
- * DMA address of beginning of this object, returned
- * by pci_alloc_consistent().
- */
- dma_addr_t dma_addr;
-
- /* Pointer to the associated pci device structure */
- struct pci_dev *pci_dev;
-
- /* Pointer for the SAA9730 LAN controller register set. */
- t_lan_saa9730_regmap *lan_saa9730_regs;
-
- /* Pointer to the SAA9730 EVM register. */
- t_evm_saa9730_regmap *evm_saa9730_regs;
-
- /* Rcv buffer Index. */
- unsigned char NextRcvPacketIndex;
- /* Next buffer index. */
- unsigned char NextRcvBufferIndex;
-
- /* Index of next packet to use in that buffer. */
- unsigned char NextTxmPacketIndex;
- /* Next buffer index. */
- unsigned char NextTxmBufferIndex;
-
- /* Index of first pending packet ready to send. */
- unsigned char PendingTxmPacketIndex;
- /* Pending buffer index. */
- unsigned char PendingTxmBufferIndex;
-
- unsigned char DmaRcvPackets;
- unsigned char DmaTxmPackets;
-
- void *TxmBuffer[LAN_SAA9730_BUFFERS][LAN_SAA9730_TXM_Q_SIZE];
- void *RcvBuffer[LAN_SAA9730_BUFFERS][LAN_SAA9730_RCV_Q_SIZE];
- unsigned int TxBufferFree[LAN_SAA9730_BUFFERS];
-
- unsigned char PhysicalAddress[LAN_SAA9730_CAM_ENTRIES][6];
-
- spinlock_t lock;
-};
-
-#endif /* _SAA9730_H */
projects / linux-2.6 / commitdiff