On Sun, Mar 17, 2002 at 10:57:40AM -0800, Greg KH wrote:
> [EMAIL PROTECTED], 2002-03-17 10:29:11-08:00, [EMAIL PROTECTED]
>   USB catc driver
>     
>   Here is a patch to add support for F5U011 to catc.c driver. The
>   patch has been compile tested against 2.5.6 and 2.5.7pre1
>   (and tested against 2.5.5-dj1) and should apply cleanly.
> 
>  drivers/usb/Config.help |    1 
>  drivers/usb/catc.c      |  291 +++++++++++++++++++++++++++++++++++-------------
>  2 files changed, 216 insertions(+), 76 deletions(-)


# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#                  ChangeSet    1.526   -> 1.527  
#       drivers/usb/Config.help 1.5     -> 1.6    
#         drivers/usb/catc.c    1.9     -> 1.10   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/03/17      [EMAIL PROTECTED]      1.527
# USB catc driver
#   
# Here is a patch to add support for F5U011 to catc.c driver. The
# patch has been compile tested against 2.5.6 and 2.5.7pre1
# (and tested against 2.5.5-dj1) and should apply cleanly.
# --------------------------------------------
#
diff -Nru a/drivers/usb/Config.help b/drivers/usb/Config.help
--- a/drivers/usb/Config.help   Sun Mar 17 11:01:36 2002
+++ b/drivers/usb/Config.help   Sun Mar 17 11:01:36 2002
@@ -382,6 +382,7 @@
 CONFIG_USB_CATC
   Say Y if you want to use one of the following 10Mbps USB Ethernet
   device based on the EL1210A chip. Supported devices are:
+    Belkin F5U011
     Belkin F5U111
     CATC NetMate
     CATC NetMate II
diff -Nru a/drivers/usb/catc.c b/drivers/usb/catc.c
--- a/drivers/usb/catc.c        Sun Mar 17 11:01:36 2002
+++ b/drivers/usb/catc.c        Sun Mar 17 11:01:36 2002
@@ -7,6 +7,9 @@
  *
  *  Based on the work of
  *             Donald Becker
+ * 
+ *  Old chipset support added by Simon Evans <[EMAIL PROTECTED]> 2002
+ *    - adds support for Belkin F5U011
  */
 
 /*
@@ -70,6 +73,7 @@
 #define RX_MAX_BURST           15      /* Max packets per rx buffer (> 0, < 16) */
 #define TX_MAX_BURST           15      /* Max full sized packets per tx buffer (> 0) 
*/
 #define CTRL_QUEUE             16      /* Max control requests in flight (power of 
two) */
+#define RX_PKT_SZ              1600    /* Max size of receive packet for F5U011 */
 
 /*
  * Control requests.
@@ -80,6 +84,7 @@
        GetMac =        0xf2,
        Reset =         0xf4,
        SetMac =        0xf5,
+       SetRxMode =     0xf5,  /* F5U011 only */
        WriteROM =      0xf8,
        SetReg =        0xfa,
        GetReg =        0xfb,
@@ -127,6 +132,7 @@
        RxForceOK =     0x04,
        RxMultiCast =   0x08,
        RxPromisc =     0x10,
+       AltRxPromisc =  0x20, /* F5U011 uses different bit */
 };
 
 enum led_values {
@@ -137,6 +143,12 @@
        LEDLink =       0x08,
 };
 
+enum link_status {
+       LinkNoChange = 0,
+       LinkGood     = 1,
+       LinkBad      = 2
+};
+
 /*
  * The catc struct.
  */
@@ -180,6 +192,10 @@
        } ctrl_queue[CTRL_QUEUE];
 
        struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb;
+
+       u8 is_f5u011;   /* Set if device is an F5U011 */
+       u8 rxmode[2];   /* Used for F5U011 */
+       atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */
 };
 
 /*
@@ -193,6 +209,10 @@
 #define catc_write_mem(catc, addr, buf, size)          catc_ctrl_msg(catc, 
USB_DIR_OUT, WriteMem, 0, addr, buf, size)
 #define catc_read_mem(catc, addr, buf, size)           catc_ctrl_msg(catc, 
USB_DIR_IN,  ReadMem, 0, addr, buf, size)
 
+#define f5u011_rxmode(catc, rxmode)                    catc_ctrl_msg(catc, 
+USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2)
+#define f5u011_rxmode_async(catc, rxmode)              catc_ctrl_async(catc, 
+USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL)
+#define f5u011_mchash_async(catc, hash)                        catc_ctrl_async(catc, 
+USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL)
+
 #define catc_set_reg_async(catc, reg, val)             catc_ctrl_async(catc, 
USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL)
 #define catc_get_reg_async(catc, reg, cb)              catc_ctrl_async(catc, 
USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb)
 #define catc_write_mem_async(catc, addr, buf, size)    catc_ctrl_async(catc, 
USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL)
@@ -206,9 +226,12 @@
        struct catc *catc = urb->context;
        u8 *pkt_start = urb->transfer_buffer;
        struct sk_buff *skb;
-       int pkt_len;
+       int pkt_len, pkt_offset = 0;
 
-       clear_bit(RX_RUNNING, &catc->flags);
+       if (!catc->is_f5u011) {
+               clear_bit(RX_RUNNING, &catc->flags);
+               pkt_offset = 2;
+       }
 
        if (urb->status) {
                dbg("rx_done, status %d, length %d", urb->status, urb->actual_length);
@@ -216,19 +239,22 @@
        }
 
        do {
-               pkt_len = le16_to_cpup((u16*)pkt_start);
-
-               if (pkt_len > urb->actual_length) {
-                       catc->stats.rx_length_errors++;
-                       catc->stats.rx_errors++;
-                       break;
+               if(!catc->is_f5u011) {
+                       pkt_len = le16_to_cpup((u16*)pkt_start);
+                       if (pkt_len > urb->actual_length) {
+                               catc->stats.rx_length_errors++;
+                               catc->stats.rx_errors++;
+                               break;
+                       }
+               } else {
+                       pkt_len = urb->actual_length;
                }
 
                if (!(skb = dev_alloc_skb(pkt_len)))
                        return;
 
                skb->dev = catc->netdev;
-               eth_copy_and_sum(skb, pkt_start + 2, pkt_len, 0);
+               eth_copy_and_sum(skb, pkt_start + pkt_offset, pkt_len, 0);
                skb_put(skb, pkt_len);
 
                skb->protocol = eth_type_trans(skb, catc->netdev);
@@ -237,11 +263,28 @@
                catc->stats.rx_packets++;
                catc->stats.rx_bytes += pkt_len;
 
+               /* F5U011 only does one packet per RX */
+               if (catc->is_f5u011)
+                       break;
                pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
 
        } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
 
        catc->netdev->last_rx = jiffies;
+
+       if (catc->is_f5u011) {
+               if (atomic_read(&catc->recq_sz)) {
+                       int status;
+                       atomic_dec(&catc->recq_sz);
+                       dbg("getting extra packet");
+                       urb->dev = catc->usbdev;
+                       if ((status = usb_submit_urb(urb, GFP_KERNEL)) < 0) {
+                               dbg("submit(rx_urb) status %d", status);
+                       }
+               } else {
+                       clear_bit(RX_RUNNING, &catc->flags);
+               }
+       }
 }
 
 static void catc_irq_done(struct urb *urb)
@@ -249,29 +292,48 @@
        struct catc *catc = urb->context;
        u8 *data = urb->transfer_buffer;
        int status;
+       unsigned int hasdata = 0, linksts = LinkNoChange;
+
+       if (!catc->is_f5u011) {
+               hasdata = data[1] & 0x80;
+               if (data[1] & 0x40)
+                       linksts = LinkGood;
+               else if (data[1] & 0x20)
+                       linksts = LinkBad;
+       } else {
+               hasdata = (unsigned int)(be16_to_cpup((u16*)data) & 0x0fff);
+               if (data[0] == 0x90)
+                       linksts = LinkGood;
+               else if (data[0] == 0xA0)
+                       linksts = LinkBad;
+       }
 
        if (urb->status) {
                dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], 
data[1]);
                return;
        }
 
-       if ((data[1] & 0x80) && !test_and_set_bit(RX_RUNNING, &catc->flags)) {
-               catc->rx_urb->dev = catc->usbdev;
-               if ((status = usb_submit_urb(catc->rx_urb, GFP_KERNEL)) < 0) {
-                       err("submit(rx_urb) status %d", status);
-                       return;
-               } 
-       }
-
-       if (data[1] & 0x40) {
+       if (linksts == LinkGood) {
                netif_carrier_on(catc->netdev);
                dbg("link ok");
        }
 
-       if (data[1] & 0x20) {
+       if (linksts == LinkBad) {
                netif_carrier_off(catc->netdev);
                dbg("link bad");
        }
+
+       if (hasdata) {
+               if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
+                       if (catc->is_f5u011)
+                               atomic_inc(&catc->recq_sz);
+               } else {
+                       catc->rx_urb->dev = catc->usbdev;
+                       if ((status = usb_submit_urb(catc->rx_urb, GFP_KERNEL)) < 0) {
+                               err("submit(rx_urb) status %d", status);
+                       }
+               } 
+       }
 }
 
 /*
@@ -282,6 +344,9 @@
 {
        int status;
 
+       if (catc->is_f5u011)
+               catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
+
        catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
        catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
        catc->tx_urb->dev = catc->usbdev;
@@ -338,14 +403,15 @@
 
        catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
        tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
-       *((u16*)tx_buf) = cpu_to_le16((u16)skb->len);
+       *((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : 
+cpu_to_le16((u16)skb->len);
        memcpy(tx_buf + 2, skb->data, skb->len);
        catc->tx_ptr += skb->len + 2;
 
        if (!test_and_set_bit(TX_RUNNING, &catc->flags))
                catc_tx_run(catc);
 
-       if (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))
+       if ((catc->is_f5u011 && catc->tx_ptr)
+            || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
                netif_stop_queue(netdev);
 
        spin_unlock_irqrestore(&catc->tx_lock, flags);
@@ -554,17 +620,32 @@
 
        if (netdev->flags & IFF_PROMISC) {
                memset(catc->multicast, 0xff, 64);
-               rx |= RxPromisc;
+               rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
        } 
 
-       if (netdev->flags & IFF_ALLMULTI)
+       if (netdev->flags & IFF_ALLMULTI) {
                memset(catc->multicast, 0xff, 64);
-
-       for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = 
mc->next)
-               catc_multicast(mc->dmi_addr, catc->multicast);
-
-       catc_set_reg_async(catc, RxUnit, rx);
-       catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
+       } else {
+               for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc 
+= mc->next) {
+                       u32 crc = ether_crc_le(6, mc->dmi_addr);
+                       if (!catc->is_f5u011) {
+                               catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
+                       } else {
+                               catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 
+7);
+                       }
+               }
+       }
+       if (!catc->is_f5u011) {
+               catc_set_reg_async(catc, RxUnit, rx);
+               catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
+       } else {
+               f5u011_mchash_async(catc, catc->multicast);
+               if (catc->rxmode[0] != rx) {
+                       catc->rxmode[0] = rx;
+                       dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], 
+catc->rxmode[1]);
+                       f5u011_rxmode_async(catc, catc->rxmode);
+               }
+       }
 }
 
 /*
@@ -591,6 +672,29 @@
                         return -EFAULT;
                 return 0;
         }
+
+       /* get settings */
+       case ETHTOOL_GSET:
+               if (catc->is_f5u011) {
+                       struct ethtool_cmd ecmd = { ETHTOOL_GSET, 
+                                                   SUPPORTED_10baseT_Half | 
+SUPPORTED_TP, 
+                                                   ADVERTISED_10baseT_Half | 
+ADVERTISED_TP, 
+                                                   SPEED_10, 
+                                                   DUPLEX_HALF, 
+                                                   PORT_TP, 
+                                                   0, 
+                                                   XCVR_INTERNAL, 
+                                                   AUTONEG_DISABLE, 
+                                                   1, 
+                                                   1 
+                       };
+                       if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
+                               return -EFAULT;
+                       return 0;
+               } else {
+                       return -EOPNOTSUPP;
+               }
+
         /* get link status */
         case ETHTOOL_GLINK: {
                 struct ethtool_value edata = {ETHTOOL_GLINK};
@@ -632,7 +736,8 @@
 
        netif_start_queue(netdev);
 
-       mod_timer(&catc->timer, jiffies + STATS_UPDATE);
+       if (!catc->is_f5u011)
+               mod_timer(&catc->timer, jiffies + STATS_UPDATE);
 
        return 0;
 }
@@ -643,7 +748,8 @@
 
        netif_stop_queue(netdev);
 
-       del_timer_sync(&catc->timer);
+       if (!catc->is_f5u011)
+               del_timer_sync(&catc->timer);
 
        usb_unlink_urb(catc->rx_urb);
        usb_unlink_urb(catc->tx_urb);
@@ -662,7 +768,7 @@
        struct net_device *netdev;
        struct catc *catc;
        u8 broadcast[6];
-       int i;
+       int i, pktsz;
 
        if (usb_set_interface(usbdev, ifnum, 1)) {
                 err("Can't set altsetting 1.");
@@ -670,9 +776,16 @@
        }
 
        catc = kmalloc(sizeof(struct catc), GFP_KERNEL);
+       if (!catc)
+               return NULL;
+
        memset(catc, 0, sizeof(struct catc));
 
        netdev = init_etherdev(0, 0);
+       if (!netdev) {
+               kfree(catc);
+               return NULL;
+       }
 
        netdev->open = catc_open;
        netdev->hard_start_xmit = catc_hard_start_xmit;
@@ -701,9 +814,26 @@
        if ((!catc->ctrl_urb) || (!catc->tx_urb) || 
            (!catc->rx_urb) || (!catc->irq_urb)) {
                err("No free urbs available.");
+               if (catc->ctrl_urb) usb_free_urb(catc->ctrl_urb);
+               if (catc->tx_urb)   usb_free_urb(catc->tx_urb);
+               if (catc->rx_urb)   usb_free_urb(catc->rx_urb);
+               if (catc->irq_urb)  usb_free_urb(catc->irq_urb);
+               kfree(netdev);
+               kfree(catc);
                return NULL;
        }
 
+       /* The F5U011 has the same vendor/product as the netmate but a device version 
+of 0x130 */
+       if (usbdev->descriptor.idVendor == 0x0423 && usbdev->descriptor.idProduct == 
+0xa &&
+          catc->usbdev->descriptor.bcdDevice == 0x0130 ) {
+               dbg("Testing for f5u011");
+               catc->is_f5u011 = 1;            
+               atomic_set(&catc->recq_sz, 0);
+               pktsz = RX_PKT_SZ;
+       } else {
+               pktsz = RX_MAX_BURST * (PKT_SZ + 2);
+       }
+       
        FILL_CONTROL_URB(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
                NULL, NULL, 0, catc_ctrl_done, catc);
 
@@ -711,20 +841,21 @@
                NULL, 0, catc_tx_done, catc);
 
        FILL_BULK_URB(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
-               catc->rx_buf, RX_MAX_BURST * (PKT_SZ + 2), catc_rx_done, catc);
+               catc->rx_buf, pktsz, catc_rx_done, catc);
 
        FILL_INT_URB(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
                 catc->irq_buf, 2, catc_irq_done, catc, 1);
 
-       dbg("Checking memory size\n");
-
-       i = 0x12345678;
-       catc_write_mem(catc, 0x7a80, &i, 4);
-       i = 0x87654321; 
-       catc_write_mem(catc, 0xfa80, &i, 4);
-       catc_read_mem(catc, 0x7a80, &i, 4);
+       if (!catc->is_f5u011) {
+               dbg("Checking memory size\n");
 
-       switch (i) {
+               i = 0x12345678;
+               catc_write_mem(catc, 0x7a80, &i, 4);
+               i = 0x87654321; 
+               catc_write_mem(catc, 0xfa80, &i, 4);
+               catc_read_mem(catc, 0x7a80, &i, 4);
+         
+               switch (i) {
                case 0x12345678:
                        catc_set_reg(catc, TxBufCount, 8);
                        catc_set_reg(catc, RxBufCount, 32);
@@ -737,44 +868,52 @@
                        catc_set_reg(catc, RxBufCount, 16);
                        dbg("32k Memory\n");
                        break;
+               }
+         
+               dbg("Getting MAC from SEEROM.");
+         
+               catc_get_mac(catc, netdev->dev_addr);
+               
+               dbg("Setting MAC into registers.");
+         
+               for (i = 0; i < 6; i++)
+                       catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
+               
+               dbg("Filling the multicast list.");
+         
+               memset(broadcast, 0xff, 6);
+               catc_multicast(broadcast, catc->multicast);
+               catc_multicast(netdev->dev_addr, catc->multicast);
+               catc_write_mem(catc, 0xfa80, catc->multicast, 64);
+               
+               dbg("Clearing error counters.");
+               
+               for (i = 0; i < 8; i++)
+                       catc_set_reg(catc, EthStats + i, 0);
+               catc->last_stats = jiffies;
+               
+               dbg("Enabling.");
+               
+               catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
+               catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | 
+Op3MemWaits);
+               catc_set_reg(catc, LEDCtrl, LEDLink);
+               catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
+       } else {
+               dbg("Performing reset\n");
+               catc_reset(catc);
+               catc_get_mac(catc, netdev->dev_addr);
+               
+               dbg("Setting RX Mode");
+               catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
+               catc->rxmode[1] = 0;
+               f5u011_rxmode(catc, catc->rxmode);
        }
-
-       dbg("Getting MAC from SEEROM.");
-
-       catc_get_mac(catc, netdev->dev_addr);
-
-       dbg("Setting MAC into registers.");
-
-       for (i = 0; i < 6; i++)
-               catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
-
-       dbg("Filling the multicast list.");
-
-       memset(broadcast, 0xff, 8);
-       catc_multicast(broadcast, catc->multicast);
-       catc_multicast(netdev->dev_addr, catc->multicast);
-       catc_write_mem(catc, 0xfa80, catc->multicast, 64);
-
-       dbg("Clearing error counters.");
-
-       for (i = 0; i < 8; i++)
-               catc_set_reg(catc, EthStats + i, 0);
-       catc->last_stats = jiffies;
-
-       dbg("Enabling.");
-
-       catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
-       catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | 
Op3MemWaits);
-       catc_set_reg(catc, LEDCtrl, LEDLink);
-       catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
-
        dbg("Init done.");
-
-       printk(KERN_INFO "%s: CATC EL1210A NetMate USB Ethernet at usb%d:%d.%d, ",
-               netdev->name, usbdev->bus->busnum, usbdev->devnum, ifnum);
+       printk(KERN_INFO "%s: %s USB Ethernet at usb%d:%d.%d, ",
+              netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A 
+NetMate",
+              usbdev->bus->busnum, usbdev->devnum, ifnum);
        for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
        printk("%2.2x.\n", netdev->dev_addr[i]);
-
        return catc;
 }
 
@@ -795,7 +934,7 @@
  */
 
 static struct usb_device_id catc_id_table [] = {
-       { USB_DEVICE(0x0423, 0xa) },    /* CATC Netmate */
+       { USB_DEVICE(0x0423, 0xa) },    /* CATC Netmate, Belkin F5U011 */
        { USB_DEVICE(0x0423, 0xc) },    /* CATC Netmate II, Belkin F5U111 */
        { USB_DEVICE(0x08d1, 0x1) },    /* smartBridges smartNIC */
        { }

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