980 lines
25 KiB
C
980 lines
25 KiB
C
/* rdc.c: A RDC FastEthernet driver for linux. */
|
|
/*
|
|
Re-written 2004 by Sten Wang.
|
|
|
|
Copyright 1994-2000 by Donald Becker.
|
|
Copyright 1993 United States Government as represented by the
|
|
Director, National Security Agency. This software may be used and
|
|
distributed according to the terms of the GNU General Public License,
|
|
incorporated herein by reference.
|
|
|
|
This driver is for RDC FastEthernet MAC series.
|
|
For kernel version after 2.4.22
|
|
|
|
Modification List
|
|
---------- ------------------------------------------------
|
|
12-22-2004 Sten Init MAC MBCR register=0x012A
|
|
PHY_CAP = 0x01E1
|
|
*/
|
|
|
|
#define FORICPLUS /* Supports ICPlus IP175C switch chip */
|
|
#define BOOSTRDC /* Accelerate Ethernet performance */
|
|
|
|
#define DRV_NAME "rdc"
|
|
#define DRV_VERSION "0.6"
|
|
#define DRV_RELDATE "9July2004"
|
|
|
|
/* PHY CHIP Address */
|
|
#define PHY1_ADDR 1 /* For MAC1 */
|
|
#define PHY2_ADDR 2 /* For MAC2 */
|
|
#define PHY_MODE 0x3100 /* PHY CHIP Register 0 */
|
|
#define PHY_CAP 0x01E1 /* PHY CHIP Register 4 */
|
|
|
|
/* Time in jiffies before concluding the transmitter is hung. */
|
|
#define TX_TIMEOUT (400 * HZ / 1000)
|
|
#define TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
|
|
|
|
/* RDC MAC ID */
|
|
#define RDC_MAC_ID 0x6040
|
|
|
|
/* RDC MAC I/O Size */
|
|
#define R6040_IO_SIZE 256
|
|
|
|
/* RDC Chip PCI Command */
|
|
#define R6040_PCI_CMD 0x0005 /* IO, Master */
|
|
|
|
/* MAX RDC MAC */
|
|
#define MAX_MAC 2
|
|
|
|
/* MAC setting */
|
|
#ifdef BOOSTRDC
|
|
#define TX_DCNT 32 /* TX descriptor count */
|
|
#define RX_DCNT 32 /* RX descriptor count */
|
|
#else
|
|
#define TX_DCNT 0x8 /* TX descriptor count */
|
|
#define RX_DCNT 0x8 /* RX descriptor count */
|
|
#endif
|
|
#define MAX_BUF_SIZE 0x600
|
|
#define ALLOC_DESC_SIZE ((TX_DCNT+RX_DCNT)*sizeof(struct rdc_descriptor)+0x10)
|
|
#define MBCR_DEFAULT 0x012A /* MAC Control Register */
|
|
|
|
/* Debug enable or not */
|
|
#define RDC_DEBUG 0
|
|
|
|
#if RDC_DEBUG > 1
|
|
#define RDC_DBUG(msg, value) printk("%s %x\n", msg, value);
|
|
#else
|
|
#define RDC_DBUG(msg, value)
|
|
#endif
|
|
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/string.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h> /* for udelay() */
|
|
#include <linux/mii.h>
|
|
#include <linux/ethtool.h>
|
|
#include <linux/crc32.h>
|
|
#include <linux/spinlock.h>
|
|
|
|
#include <asm/processor.h>
|
|
#include <asm/bitops.h>
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>");
|
|
MODULE_DESCRIPTION("RDC R6040 PCI FastEthernet Driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
//MODULE_PARM(adr_table, "2-4i");
|
|
MODULE_PARM_DESC(adr_table, "MAC Address (assigned)");
|
|
|
|
struct rdc_descriptor {
|
|
u16 status, len; /* 0-3 */
|
|
u32 buf; /* 4-7 */
|
|
u32 ndesc; /* 8-B */
|
|
u32 rev1; /* C-F */
|
|
char *vbufp; /* 10-13 */
|
|
struct rdc_descriptor *vndescp; /* 14-17 */
|
|
struct sk_buff *skb_ptr; /* 18-1B */
|
|
u32 rev2; /* 1C-1F */
|
|
} __attribute__(( aligned(32) ));
|
|
|
|
struct rdc_private {
|
|
struct net_device_stats stats;
|
|
spinlock_t lock;
|
|
struct timer_list timer;
|
|
struct pci_dev *pdev;
|
|
|
|
struct rdc_descriptor *rx_insert_ptr;
|
|
struct rdc_descriptor *rx_remove_ptr;
|
|
struct rdc_descriptor *tx_insert_ptr;
|
|
struct rdc_descriptor *tx_remove_ptr;
|
|
u16 tx_free_desc, rx_free_desc, phy_addr, phy_mode;
|
|
u16 mcr0, mcr1;
|
|
dma_addr_t desc_dma;
|
|
char *desc_pool;
|
|
};
|
|
|
|
struct rdc_chip_info {
|
|
const char *name;
|
|
u16 pci_flags;
|
|
int io_size;
|
|
int drv_flags;
|
|
};
|
|
|
|
static int __devinitdata printed_version;
|
|
static char version[] __devinitdata =
|
|
KERN_INFO DRV_NAME ": RDC R6040 net driver, version "
|
|
DRV_VERSION " (" DRV_RELDATE ")\n";
|
|
|
|
static struct rdc_chip_info rdc_chip_info[] __devinitdata =
|
|
{
|
|
{ "RDC R6040 Knight", R6040_PCI_CMD, R6040_IO_SIZE, 0}
|
|
};
|
|
|
|
static int phy_table[] = { 0x1, 0x2};
|
|
static u8 adr_table[2][8] = {{0x00, 0x00, 0x60, 0x00, 0x00, 0x01}, {0x00, 0x00, 0x60, 0x00, 0x00, 0x02}};
|
|
|
|
static int rdc_open(struct net_device *dev);
|
|
static int rdc_start_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
static irqreturn_t rdc_interrupt(int irq, void *dev_id);
|
|
static struct net_device_stats *rdc_get_stats(struct net_device *dev);
|
|
static int rdc_close(struct net_device *dev);
|
|
static void set_multicast_list(struct net_device *dev);
|
|
static struct ethtool_ops netdev_ethtool_ops;
|
|
static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
|
|
static void rdc_down(struct net_device *dev);
|
|
static void rdc_up(struct net_device *dev);
|
|
static void rdc_tx_timeout (struct net_device *dev);
|
|
static void rdc_timer(unsigned long);
|
|
|
|
static int phy_mode_chk(struct net_device *dev);
|
|
static int phy_read(int ioaddr, int phy_adr, int reg_idx);
|
|
static void phy_write(int ioaddr, int phy_adr, int reg_idx, int dat);
|
|
|
|
#ifdef BOOSTRDC
|
|
#define rx_buf_alloc(lp) \
|
|
do { \
|
|
struct rdc_descriptor *descptr; \
|
|
descptr = lp->rx_insert_ptr; \
|
|
while(lp->rx_free_desc < RX_DCNT){ \
|
|
descptr->skb_ptr = dev_alloc_skb(MAX_BUF_SIZE); \
|
|
if (!descptr->skb_ptr) break; \
|
|
descptr->buf = cpu_to_le32(pci_map_single(lp->pdev, descptr->skb_ptr->tail, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE)); \
|
|
descptr->status = 0x8000; \
|
|
descptr = descptr->vndescp; \
|
|
lp->rx_free_desc++; \
|
|
} \
|
|
lp->rx_insert_ptr = descptr; \
|
|
} while(0)
|
|
|
|
#else
|
|
static void rx_buf_alloc(struct rdc_private *lp);
|
|
#endif
|
|
|
|
#ifdef FORICPLUS
|
|
static void process_ioctl(struct net_device*, unsigned long* );
|
|
#endif
|
|
|
|
static int __devinit rdc_init_one (struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct net_device *dev;
|
|
struct rdc_private *lp;
|
|
int ioaddr, io_size, err;
|
|
static int card_idx = -1;
|
|
int chip_id = (int)ent->driver_data;
|
|
|
|
RDC_DBUG("rdc_init_one()", 0);
|
|
|
|
if (printed_version++)
|
|
printk(version);
|
|
|
|
if ((err = pci_enable_device (pdev)))
|
|
return err;
|
|
|
|
/* this should always be supported */
|
|
if (pci_set_dma_mask(pdev, 0xffffffff)) {
|
|
printk(KERN_ERR DRV_NAME "32-bit PCI DMA addresses not supported by the card!?\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* IO Size check */
|
|
io_size = rdc_chip_info[chip_id].io_size;
|
|
if (pci_resource_len (pdev, 0) < io_size) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
ioaddr = pci_resource_start (pdev, 0); /* IO map base address */
|
|
pci_set_master(pdev);
|
|
|
|
dev = alloc_etherdev(sizeof(struct rdc_private));
|
|
if (dev == NULL)
|
|
return -ENOMEM;
|
|
SET_MODULE_OWNER(dev);
|
|
|
|
if (pci_request_regions(pdev, DRV_NAME)) {
|
|
printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
|
|
err = -ENODEV;
|
|
goto err_out_disable;
|
|
}
|
|
|
|
/* Init system & device */
|
|
lp = dev->priv;
|
|
dev->base_addr = ioaddr;
|
|
dev->irq = pdev->irq;
|
|
|
|
spin_lock_init(&lp->lock);
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
/* Set MAC address */
|
|
card_idx++;
|
|
memcpy(dev->dev_addr, (u8 *)&adr_table[card_idx][0], 6);
|
|
|
|
/* Link new device into rdc_root_dev */
|
|
lp->pdev = pdev;
|
|
|
|
/* Init RDC private data */
|
|
lp->mcr0 = 0x1002;
|
|
lp->phy_addr = phy_table[card_idx];
|
|
|
|
/* The RDC-specific entries in the device structure. */
|
|
dev->open = &rdc_open;
|
|
dev->hard_start_xmit = &rdc_start_xmit;
|
|
dev->stop = &rdc_close;
|
|
dev->get_stats = &rdc_get_stats;
|
|
dev->set_multicast_list = &set_multicast_list;
|
|
dev->do_ioctl = &netdev_ioctl;
|
|
dev->ethtool_ops = &netdev_ethtool_ops;
|
|
dev->tx_timeout = &rdc_tx_timeout;
|
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
|
|
/* Register net device. After this dev->name assign */
|
|
if ((err = register_netdev(dev))) {
|
|
printk(KERN_ERR DRV_NAME ": Failed to register net device\n");
|
|
goto err_out_res;
|
|
}
|
|
|
|
netif_carrier_on(dev);
|
|
return 0;
|
|
|
|
err_out_res:
|
|
pci_release_regions(pdev);
|
|
err_out_disable:
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
kfree(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __devexit rdc_remove_one (struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
|
|
unregister_netdev(dev);
|
|
pci_release_regions(pdev);
|
|
kfree(dev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
static int
|
|
rdc_open(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
int i;
|
|
|
|
RDC_DBUG("rdc_open()", 0);
|
|
|
|
/* Request IRQ and Register interrupt handler */
|
|
i = request_irq(dev->irq, &rdc_interrupt, SA_SHIRQ, dev->name, dev);
|
|
if (i) return i;
|
|
|
|
/* Allocate Descriptor memory */
|
|
lp->desc_pool = pci_alloc_consistent(lp->pdev, ALLOC_DESC_SIZE, &lp->desc_dma);
|
|
if (!lp->desc_pool) return -ENOMEM;
|
|
|
|
rdc_up(dev);
|
|
|
|
netif_start_queue(dev);
|
|
|
|
#ifndef FORICPLUS
|
|
/* set and active a timer process */
|
|
init_timer(&lp->timer);
|
|
lp->timer.expires = TIMER_WUT;
|
|
lp->timer.data = (unsigned long)dev;
|
|
lp->timer.function = &rdc_timer;
|
|
add_timer(&lp->timer);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rdc_tx_timeout (struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
//int ioaddr = dev->base_addr;
|
|
//struct rdc_descriptor *descptr = lp->tx_remove_ptr;
|
|
|
|
RDC_DBUG("rdc_tx_timeout()", 0);
|
|
|
|
/* Transmitter timeout, serious problems. */
|
|
/* Sten: Nothing need to do so far. */
|
|
printk(KERN_ERR DRV_NAME ": Big Trobule, transmit timeout/n");
|
|
lp->stats.tx_errors++;
|
|
netif_stop_queue(dev);
|
|
|
|
//printk("<RDC> XMT timedout: CR0 %x, CR40 %x, CR3C %x, CR2C %x, CR30 %x, CR34 %x, CR38 %x\n", inw(ioaddr), inw(ioaddr+0x40), inw(ioaddr+0x3c), inw(ioaddr+0x2c), inw(ioaddr+0x30), inw(ioaddr+0x34), inw(ioaddr+0x38));
|
|
|
|
//printk("<RDC> XMT_TO: %08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
|
|
}
|
|
|
|
|
|
static int
|
|
rdc_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
struct rdc_descriptor *descptr;
|
|
int ioaddr = dev->base_addr;
|
|
unsigned long flags;
|
|
|
|
RDC_DBUG("rdc_start_xmit()", 0);
|
|
|
|
if (skb == NULL) /* NULL skb directly return */
|
|
return 0;
|
|
if (skb->len >= MAX_BUF_SIZE) { /* Packet too long, drop it */
|
|
dev_kfree_skb(skb);
|
|
return 0;
|
|
}
|
|
|
|
/* Critical Section */
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|
|
|
/* TX resource check */
|
|
if (!lp->tx_free_desc) {
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|
printk(KERN_ERR DRV_NAME ": NO TX DESC ");
|
|
return 1;
|
|
}
|
|
|
|
/* Statistic Counter */
|
|
lp->stats.tx_packets++;
|
|
lp->stats.tx_bytes += skb->len;
|
|
|
|
/* Set TX descriptor & Transmit it */
|
|
lp->tx_free_desc--;
|
|
descptr = lp->tx_insert_ptr;
|
|
if (skb->len < 0x3c) descptr->len = 0x3c;
|
|
else descptr->len = skb->len;
|
|
descptr->skb_ptr = skb;
|
|
descptr->buf = cpu_to_le32(pci_map_single(lp->pdev, skb->data, skb->len, PCI_DMA_TODEVICE));
|
|
descptr->status = 0x8000;
|
|
outw(0x01, ioaddr + 0x14);
|
|
lp->tx_insert_ptr = descptr->vndescp;
|
|
|
|
#if RDC_DEBUG
|
|
printk("Xmit(): %08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
|
|
#endif
|
|
|
|
/* If no tx resource, stop */
|
|
if (!lp->tx_free_desc)
|
|
netif_stop_queue(dev);
|
|
|
|
dev->trans_start = jiffies;
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
/* The RDC interrupt handler. */
|
|
static irqreturn_t
|
|
rdc_interrupt(int irq, void *dev_id)
|
|
{
|
|
struct net_device *dev = dev_id;
|
|
struct rdc_private *lp;
|
|
struct rdc_descriptor *descptr;
|
|
struct sk_buff *skb_ptr;
|
|
int ioaddr, status;
|
|
unsigned long flags;
|
|
int handled = 0;
|
|
|
|
RDC_DBUG("rdc_interrupt()", 0);
|
|
if (dev == NULL) {
|
|
printk (KERN_ERR DRV_NAME ": INT() unknown device.\n");
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
lp = (struct rdc_private *)dev->priv;
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|
|
|
/* Check MAC Interrupt status */
|
|
ioaddr = dev->base_addr;
|
|
outw(0x0, ioaddr + 0x40); /* Mask Off RDC MAC interrupt */
|
|
status = inw(ioaddr + 0x3c); /* Read INTR status and clear */
|
|
|
|
/* TX interrupt request */
|
|
if (status & 0x10) {
|
|
handled = 1;
|
|
descptr = lp->tx_remove_ptr;
|
|
while(lp->tx_free_desc < TX_DCNT) {
|
|
if (descptr->status & 0x8000) break; /* Not complte */
|
|
skb_ptr = descptr->skb_ptr;
|
|
pci_unmap_single(lp->pdev, descptr->buf, skb_ptr->len, PCI_DMA_TODEVICE);
|
|
dev_kfree_skb_irq(skb_ptr); /* Free buffer */
|
|
descptr->skb_ptr = 0;
|
|
descptr = descptr->vndescp; /* To next descriptor */
|
|
lp->tx_free_desc++;
|
|
}
|
|
lp->tx_remove_ptr = descptr;
|
|
if (lp->tx_free_desc) netif_wake_queue(dev);
|
|
}
|
|
|
|
/* RX interrupt request */
|
|
if (status & 0x01) {
|
|
handled = 1;
|
|
descptr = lp->rx_remove_ptr;
|
|
while(lp->rx_free_desc) {
|
|
if (descptr->status & 0x8000) break; /* No Rx packet */
|
|
skb_ptr = descptr->skb_ptr;
|
|
descptr->skb_ptr = 0;
|
|
skb_ptr->dev = dev;
|
|
skb_put(skb_ptr, descptr->len - 4);
|
|
pci_unmap_single(lp->pdev, descptr->buf, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
|
|
skb_ptr->protocol = eth_type_trans(skb_ptr, dev);
|
|
netif_rx(skb_ptr); /* Send to upper layer */
|
|
lp->stats.rx_packets++;
|
|
lp->stats.rx_bytes += descptr->len;
|
|
descptr = descptr->vndescp; /* To next descriptor */
|
|
lp->rx_free_desc--;
|
|
}
|
|
lp->rx_remove_ptr = descptr;
|
|
}
|
|
|
|
/* Allocate new RX buffer */
|
|
if (lp->rx_free_desc < RX_DCNT) rx_buf_alloc(lp);
|
|
|
|
outw(0x0011, ioaddr + 0x40); /* TX/RX interrupt enable */
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
|
|
static struct net_device_stats *
|
|
rdc_get_stats(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
|
|
RDC_DBUG("rdc_get_stats()", 0);
|
|
return &lp->stats;
|
|
}
|
|
|
|
/*
|
|
* Set or clear the multicast filter for this adaptor.
|
|
*/
|
|
static void
|
|
set_multicast_list(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
struct dev_mc_list *mcptr;
|
|
int ioaddr = dev->base_addr;
|
|
u16 *adrp, i;
|
|
unsigned long flags;
|
|
|
|
RDC_DBUG("set_multicast_list()", 0);
|
|
|
|
/* MAC Address */
|
|
ioaddr += 0x68;
|
|
adrp = (u16 *) dev->dev_addr;
|
|
outw(adrp[0], ioaddr); ioaddr += 2;
|
|
outw(adrp[1], ioaddr); ioaddr += 2;
|
|
outw(adrp[2], ioaddr); ioaddr += 2;
|
|
|
|
#if RDC_DEBUG
|
|
printk("MAC ADDR: %04x %04x %04x\n", adrp[0], adrp[1], adrp[2]);
|
|
#endif
|
|
|
|
/* Promiscous Mode */
|
|
spin_lock_irqsave(lp->lock, flags);
|
|
i = inw(ioaddr) & ~0x0120; /* Clear AMCP & PROM */
|
|
if (dev->flags & IFF_PROMISC) i |= 0x0020;
|
|
if (dev->mc_count > 4) i |= 0x0100; /* Too many multicast address */
|
|
outw(i, ioaddr);
|
|
spin_unlock_irqrestore(lp->lock, flags);
|
|
|
|
/* Multicast Address */
|
|
if (dev->mc_count > 4) /* Wait to do: Hash Table for multicast */
|
|
return;
|
|
|
|
/* Multicast Address 1~4 case */
|
|
for (i = 0, mcptr = dev->mc_list; (i<dev->mc_count) && (i<4); i++) {
|
|
adrp = (u16 *)mcptr->dmi_addr;
|
|
outw(adrp[0], ioaddr); ioaddr += 2;
|
|
outw(adrp[1], ioaddr); ioaddr += 2;
|
|
outw(adrp[2], ioaddr); ioaddr += 2;
|
|
mcptr = mcptr->next;
|
|
#if RDC_DEBUG
|
|
printk("M_ADDR: %04x %04x %04x\n", adrp[0], adrp[1], adrp[2]);
|
|
#endif
|
|
}
|
|
for (i = dev->mc_count; i < 4; i++) {
|
|
outw(0xffff, ioaddr); ioaddr += 2;
|
|
outw(0xffff, ioaddr); ioaddr += 2;
|
|
outw(0xffff, ioaddr); ioaddr += 2;
|
|
}
|
|
}
|
|
|
|
static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
|
|
{
|
|
struct rdc_private *rp = dev->priv;
|
|
|
|
strcpy (info->driver, DRV_NAME);
|
|
strcpy (info->version, DRV_VERSION);
|
|
strcpy (info->bus_info, pci_name(rp->pdev));
|
|
}
|
|
|
|
static struct ethtool_ops netdev_ethtool_ops = {
|
|
.get_drvinfo = netdev_get_drvinfo,
|
|
};
|
|
|
|
static int
|
|
rdc_close(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
|
|
RDC_DBUG("rdc_close()", 0);
|
|
|
|
/* deleted timer */
|
|
del_timer_sync(&lp->timer);
|
|
|
|
spin_lock_irq(&lp->lock);
|
|
|
|
netif_stop_queue(dev);
|
|
|
|
rdc_down(dev);
|
|
|
|
spin_unlock_irq(&lp->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
|
|
{
|
|
RDC_DBUG("netdev_ioctl()", 0);
|
|
|
|
#ifdef FORICPLUS
|
|
switch(cmd)
|
|
{
|
|
case SIOCDEVPRIVATE:
|
|
|
|
//printk(KERN_INFO"Ethernet IOCTL: cmd SIOCDEVPRIVATE\n");
|
|
{
|
|
unsigned long *data;
|
|
unsigned long args[4];
|
|
|
|
data = (unsigned long *)rq->ifr_data;
|
|
if (copy_from_user(args, data, 4*sizeof(unsigned long)))
|
|
return -EFAULT;
|
|
|
|
process_ioctl(dev, args);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Stop RDC MAC and Free the allocated resource
|
|
*/
|
|
static void rdc_down(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
int i;
|
|
int ioaddr = dev->base_addr;
|
|
|
|
RDC_DBUG("rdc_down()", 0);
|
|
|
|
/* Stop MAC */
|
|
outw(0x0000, ioaddr + 0x40); /* Mask Off Interrupt */
|
|
outw(0x0001, ioaddr + 0x04); /* Reset RDC MAC */
|
|
i = 0;
|
|
do{}while((i++ < 2048) && (inw(ioaddr + 0x04) & 0x1));
|
|
|
|
free_irq(dev->irq, dev);
|
|
|
|
/* Free RX buffer */
|
|
for (i = 0; i < RX_DCNT; i++) {
|
|
if (lp->rx_insert_ptr->skb_ptr) {
|
|
pci_unmap_single(lp->pdev, lp->rx_insert_ptr->buf, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(lp->rx_insert_ptr->skb_ptr);
|
|
lp->rx_insert_ptr->skb_ptr = 0;
|
|
}
|
|
lp->rx_insert_ptr = lp->rx_insert_ptr->vndescp;
|
|
}
|
|
|
|
/* Free TX buffer */
|
|
for (i = 0; i < TX_DCNT; i++) {
|
|
if (lp->tx_insert_ptr->skb_ptr) {
|
|
pci_unmap_single(lp->pdev, lp->tx_insert_ptr->buf, MAX_BUF_SIZE, PCI_DMA_TODEVICE);
|
|
dev_kfree_skb(lp->tx_insert_ptr->skb_ptr);
|
|
lp->rx_insert_ptr->skb_ptr = 0;
|
|
}
|
|
lp->tx_insert_ptr = lp->tx_insert_ptr->vndescp;
|
|
}
|
|
|
|
/* Free Descriptor memory */
|
|
pci_free_consistent(lp->pdev, ALLOC_DESC_SIZE, lp->desc_pool, lp->desc_dma);
|
|
}
|
|
|
|
/* Init RDC MAC */
|
|
static void rdc_up(struct net_device *dev)
|
|
{
|
|
struct rdc_private *lp = dev->priv;
|
|
struct rdc_descriptor *descptr;
|
|
int i;
|
|
int ioaddr = dev->base_addr;
|
|
u32 tmp_addr;
|
|
dma_addr_t desc_dma, start_dma;
|
|
|
|
RDC_DBUG("rdc_up()", 0);
|
|
|
|
/* Initilize */
|
|
lp->tx_free_desc = TX_DCNT;
|
|
lp->rx_free_desc = 0;
|
|
|
|
/* Init descriptor */
|
|
memset(lp->desc_pool, 0, ALLOC_DESC_SIZE); /* Let all descriptor = 0 */
|
|
lp->tx_insert_ptr = (struct rdc_descriptor *)lp->desc_pool;
|
|
lp->tx_remove_ptr = lp->tx_insert_ptr;
|
|
lp->rx_insert_ptr = (struct rdc_descriptor *)lp->tx_insert_ptr+TX_DCNT;
|
|
lp->rx_remove_ptr = lp->rx_insert_ptr;
|
|
|
|
/* Init TX descriptor */
|
|
descptr = lp->tx_insert_ptr;
|
|
desc_dma = lp->desc_dma;
|
|
start_dma = desc_dma;
|
|
for (i = 0; i < TX_DCNT; i++) {
|
|
descptr->ndesc = cpu_to_le32(desc_dma + sizeof(struct rdc_descriptor));
|
|
descptr->vndescp = (descptr + 1);
|
|
descptr = (descptr + 1);
|
|
desc_dma += sizeof(struct rdc_descriptor);
|
|
}
|
|
(descptr - 1)->ndesc = cpu_to_le32(start_dma);
|
|
(descptr - 1)->vndescp = lp->tx_insert_ptr;
|
|
|
|
/* Init RX descriptor */
|
|
start_dma = desc_dma;
|
|
descptr = lp->rx_insert_ptr;
|
|
for (i = 0; i < RX_DCNT; i++) {
|
|
descptr->ndesc = cpu_to_le32(desc_dma + sizeof(struct rdc_descriptor));
|
|
descptr->vndescp = (descptr + 1);
|
|
descptr = (descptr + 1);
|
|
desc_dma += sizeof(struct rdc_descriptor);
|
|
}
|
|
(descptr - 1)->ndesc = cpu_to_le32(start_dma);
|
|
(descptr - 1)->vndescp = lp->rx_insert_ptr;
|
|
|
|
/* Allocate buffer for RX descriptor */
|
|
rx_buf_alloc(lp);
|
|
|
|
#if RDC_DEBUG
|
|
descptr = lp->tx_insert_ptr;
|
|
for (i = 0; i < TX_DCNT; i++) {
|
|
printk("%08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
|
|
descptr = descptr->vndescp;
|
|
}
|
|
descptr = lp->rx_insert_ptr;
|
|
for (i = 0; i < RX_DCNT; i++) {
|
|
printk("%08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
|
|
descptr = descptr->vndescp;
|
|
}
|
|
#endif
|
|
|
|
/* MAC operation register */
|
|
outw(0x01, ioaddr); /* Reset MAC */
|
|
outw(2 , ioaddr+0xAC);
|
|
outw(0 , ioaddr+0xAC);
|
|
udelay(5000);
|
|
|
|
/* TX and RX descriptor start Register */
|
|
tmp_addr = cpu_to_le32(lp->tx_insert_ptr);
|
|
//timc
|
|
tmp_addr = virt_to_bus((volatile void *)tmp_addr);
|
|
outw((u16) tmp_addr, ioaddr+0x2c);
|
|
outw(tmp_addr >> 16, ioaddr+0x30);
|
|
tmp_addr = cpu_to_le32(lp->rx_insert_ptr);
|
|
//timc
|
|
tmp_addr = virt_to_bus((volatile void *)tmp_addr);
|
|
outw((u16) tmp_addr, ioaddr+0x34);
|
|
outw(tmp_addr >> 16, ioaddr+0x38);
|
|
|
|
/* Buffer Size Register */
|
|
outw(MAX_BUF_SIZE, ioaddr+0x18);
|
|
|
|
#ifdef FORICPLUS
|
|
|
|
if(phy_read(ioaddr, 0, 2) == 0x0243) // ICPlus IP175C Signature
|
|
{
|
|
phy_write(ioaddr, 29,31, 0x175C); //Enable registers
|
|
}
|
|
lp->phy_mode = 0x8000;
|
|
|
|
#else
|
|
/* PHY Mode Check */
|
|
phy_write(ioaddr, lp->phy_addr, 4, PHY_CAP);
|
|
phy_write(ioaddr, lp->phy_addr, 0, PHY_MODE);
|
|
|
|
if (PHY_MODE == 0x3100)
|
|
lp->phy_mode = phy_mode_chk(dev);
|
|
else lp->phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
|
|
#endif
|
|
/* MAC Bus Control Register */
|
|
outw(MBCR_DEFAULT, ioaddr+0x8);
|
|
|
|
/* MAC TX/RX Enable */
|
|
lp->mcr0 |= lp->phy_mode;
|
|
|
|
// Dante
|
|
// BIT15 | BIT12 | BIT5 | BIT1
|
|
lp->mcr0 |= 0x0020;
|
|
//Xavier, only set promiscuous mode with eth1 (LAN i/f)
|
|
//This is a very bad hard code...
|
|
//if(ioaddr == 0xe900)lp->mcr0 |= 0x0020;
|
|
|
|
outw(lp->mcr0, ioaddr);
|
|
|
|
#ifdef BOOSTRDC
|
|
/* set interrupt waiting time and packet numbers */
|
|
outw(0x0802, ioaddr + 0x0C);
|
|
outw(0x0802, ioaddr + 0x10);
|
|
|
|
#ifdef FORICPLUS
|
|
/* upgrade performance (by RDC guys) */
|
|
phy_write(ioaddr,30,17,(phy_read(ioaddr,30,17)|0x4000)); //bit 14=1
|
|
phy_write(ioaddr,30,17,~((~phy_read(ioaddr,30,17))|0x2000)); //bit 13=0
|
|
phy_write(ioaddr,0,19,0x0000);
|
|
phy_write(ioaddr,0,30,0x01F0);
|
|
#endif
|
|
#endif
|
|
|
|
/* Interrupt Mask Register */
|
|
outw(0x0011, ioaddr + 0x40);
|
|
}
|
|
|
|
/*
|
|
A periodic timer routine
|
|
Polling PHY Chip Link Status
|
|
*/
|
|
static void rdc_timer(unsigned long data)
|
|
{
|
|
struct net_device *dev=(struct net_device *)data;
|
|
struct rdc_private *lp = dev->priv;
|
|
u16 ioaddr = dev->base_addr, phy_mode;
|
|
|
|
RDC_DBUG("rdc_timer()", 0);
|
|
|
|
/* Polling PHY Chip Status */
|
|
if (PHY_MODE == 0x3100)
|
|
phy_mode = phy_mode_chk(dev);
|
|
else phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
|
|
|
|
if (phy_mode != lp->phy_mode) {
|
|
lp->phy_mode = phy_mode;
|
|
lp->mcr0 = (lp->mcr0 & 0x7fff) | phy_mode;
|
|
outw(lp->mcr0, ioaddr);
|
|
printk("<RDC> Link Change %x \n", inw(ioaddr));
|
|
}
|
|
|
|
/* Debug */
|
|
// printk("<RDC> Timer: CR0 %x CR40 %x CR3C %x\n", inw(ioaddr), inw(ioaddr+0x40), inw(ioaddr+0x3c));
|
|
|
|
/* Timer active again */
|
|
lp->timer.expires = TIMER_WUT;
|
|
add_timer(&lp->timer);
|
|
}
|
|
|
|
#ifndef BOOSTRDC
|
|
/* Allocate skb buffer for rx descriptor */
|
|
static void rx_buf_alloc(struct rdc_private *lp)
|
|
{
|
|
struct rdc_descriptor *descptr;
|
|
|
|
RDC_DBUG("rx_buf_alloc()", 0);
|
|
descptr = lp->rx_insert_ptr;
|
|
while(lp->rx_free_desc < RX_DCNT){
|
|
descptr->skb_ptr = dev_alloc_skb(MAX_BUF_SIZE);
|
|
if (!descptr->skb_ptr) break;
|
|
descptr->buf = cpu_to_le32(pci_map_single(lp->pdev, descptr->skb_ptr->tail, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE));
|
|
descptr->status = 0x8000;
|
|
descptr = descptr->vndescp;
|
|
lp->rx_free_desc++;
|
|
}
|
|
lp->rx_insert_ptr = descptr;
|
|
}
|
|
#endif
|
|
|
|
/* Status of PHY CHIP */
|
|
static int phy_mode_chk(struct net_device *dev)
|
|
{
|
|
|
|
struct rdc_private *lp = dev->priv;
|
|
int ioaddr = dev->base_addr, phy_dat;
|
|
|
|
RDC_DBUG("phy_mode_chk()", 0);
|
|
|
|
/* PHY Link Status Check */
|
|
phy_dat = phy_read(ioaddr, lp->phy_addr, 1);
|
|
if (!(phy_dat & 0x4)) return 0x8000; /* Link Failed, full duplex */
|
|
|
|
/* PHY Chip Auto-Negotiation Status */
|
|
phy_dat = phy_read(ioaddr, lp->phy_addr, 1);
|
|
if (phy_dat & 0x0020) {
|
|
/* Auto Negotiation Mode */
|
|
phy_dat = phy_read(ioaddr, lp->phy_addr, 5);
|
|
phy_dat &= phy_read(ioaddr, lp->phy_addr, 4);
|
|
if (phy_dat & 0x140) phy_dat = 0x8000;
|
|
else phy_dat = 0;
|
|
} else {
|
|
/* Force Mode */
|
|
phy_dat = phy_read(ioaddr, lp->phy_addr, 0);
|
|
if (phy_dat & 0x100) phy_dat = 0x8000;
|
|
else phy_dat = 0x0000;
|
|
}
|
|
|
|
return phy_dat;
|
|
|
|
};
|
|
|
|
/* Read a word data from PHY Chip */
|
|
static int phy_read(int ioaddr, int phy_addr, int reg_idx)
|
|
{
|
|
int i = 0;
|
|
|
|
RDC_DBUG("phy_read()", 0);
|
|
outw(0x2000 + reg_idx + (phy_addr << 8), ioaddr + 0x20);
|
|
do{}while( (i++ < 2048) && (inw(ioaddr + 0x20) & 0x2000) );
|
|
|
|
return inw(ioaddr + 0x24);
|
|
}
|
|
|
|
/* Write a word data from PHY Chip */
|
|
static void phy_write(int ioaddr, int phy_addr, int reg_idx, int dat)
|
|
{
|
|
int i = 0;
|
|
|
|
RDC_DBUG("phy_write()", 0);
|
|
outw(dat, ioaddr + 0x28);
|
|
outw(0x4000 + reg_idx + (phy_addr << 8), ioaddr + 0x20);
|
|
do{}while( (i++ < 2048) && (inw(ioaddr + 0x20) & 0x4000) );
|
|
}
|
|
|
|
enum {
|
|
RDC_6040 = 0
|
|
};
|
|
|
|
static struct pci_device_id rdc_pci_tbl[] = {
|
|
{0x17F3, 0x6040, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RDC_6040},
|
|
//{0x1106, 0x3065, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RDC_6040},
|
|
{0,} /* terminate list */
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, rdc_pci_tbl);
|
|
|
|
static struct pci_driver rdc_driver = {
|
|
.name = "r6040",
|
|
.id_table = rdc_pci_tbl,
|
|
.probe = rdc_init_one,
|
|
.remove = __devexit_p(rdc_remove_one),
|
|
};
|
|
|
|
|
|
static int __init rdc_init (void)
|
|
{
|
|
RDC_DBUG("rdc_init()", 0);
|
|
|
|
printk(version);
|
|
printed_version = 1;
|
|
|
|
return pci_module_init (&rdc_driver);
|
|
}
|
|
|
|
|
|
static void __exit rdc_cleanup (void)
|
|
{
|
|
RDC_DBUG("rdc_cleanup()", 0);
|
|
pci_unregister_driver (&rdc_driver);
|
|
}
|
|
|
|
module_init(rdc_init);
|
|
module_exit(rdc_cleanup);
|
|
|
|
|
|
/*
|
|
* Local variables:
|
|
* compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c rdc.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
|
|
* c-indent-level: 4
|
|
* c-basic-offset: 4
|
|
* tab-width: 4
|
|
* End:
|
|
*/
|
|
|
|
#ifdef FORICPLUS
|
|
#define DMZ_GPIO 1
|
|
#define RDC3210_CFGREG_ADDR 0x0CF8
|
|
#define RDC3210_CFGREG_DATA 0x0CFC
|
|
static void process_ioctl(struct net_device *dev, unsigned long* args)
|
|
{
|
|
int ioaddr = dev->base_addr;
|
|
|
|
/* port priority */
|
|
if(args[0]&(1<<31))phy_write(ioaddr,29,19,(phy_read(ioaddr,29,19)|0x2000)); /* port 0 */
|
|
if(args[0]&(1<<29))phy_write(ioaddr,29,19,(phy_read(ioaddr,29,19)|0x0020)); /* port 1 */
|
|
if(args[0]&(1<<27))phy_write(ioaddr,29,20,(phy_read(ioaddr,29,20)|0x2000)); /* port 2 */
|
|
if(args[0]&(1<<25))phy_write(ioaddr,29,20,(phy_read(ioaddr,29,20)|0x0020)); /* port 3 */
|
|
|
|
/* DMZ LED */
|
|
|
|
{
|
|
unsigned int val;
|
|
|
|
val = 0x80000000 | (7 << 11) | ((0x48));
|
|
outl(val, RDC3210_CFGREG_ADDR);
|
|
udelay(10);
|
|
val = inl(RDC3210_CFGREG_DATA);
|
|
|
|
val |= (0x1 << DMZ_GPIO);
|
|
outl(val, RDC3210_CFGREG_DATA);
|
|
udelay(10);
|
|
|
|
val = 0x80000000 | (7 << 11) | ((0x4C));
|
|
outl(val, RDC3210_CFGREG_ADDR);
|
|
udelay(10);
|
|
val = inl(RDC3210_CFGREG_DATA);
|
|
if(args[0]&(1<<23)) /* DMZ enabled */
|
|
val &= ~(0x1 << DMZ_GPIO); /* low activated */
|
|
else val |= (0x1 << DMZ_GPIO);
|
|
outl(val, RDC3210_CFGREG_DATA);
|
|
udelay(10);
|
|
}
|
|
|
|
|
|
}
|
|
#endif /* FORICPLUS */
|