Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*====================================================================== |
| 2 | |
| 3 | A PCMCIA ethernet driver for the 3com 3c589 card. |
| 4 | |
| 5 | Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net |
| 6 | |
| 7 | 3c589_cs.c 1.162 2001/10/13 00:08:50 |
| 8 | |
| 9 | The network driver code is based on Donald Becker's 3c589 code: |
| 10 | |
| 11 | Written 1994 by Donald Becker. |
| 12 | Copyright 1993 United States Government as represented by the |
| 13 | Director, National Security Agency. This software may be used and |
| 14 | distributed according to the terms of the GNU General Public License, |
| 15 | incorporated herein by reference. |
| 16 | Donald Becker may be reached at becker@scyld.com |
| 17 | |
Alan Cox | 113aa83 | 2008-10-13 19:01:08 -0700 | [diff] [blame] | 18 | Updated for 2.5.x by Alan Cox <alan@lxorguk.ukuu.org.uk> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
| 20 | ======================================================================*/ |
| 21 | |
| 22 | #define DRV_NAME "3c589_cs" |
| 23 | #define DRV_VERSION "1.162-ac" |
| 24 | |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/ptrace.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <linux/string.h> |
| 31 | #include <linux/timer.h> |
| 32 | #include <linux/interrupt.h> |
| 33 | #include <linux/in.h> |
| 34 | #include <linux/delay.h> |
| 35 | #include <linux/ethtool.h> |
| 36 | #include <linux/netdevice.h> |
| 37 | #include <linux/etherdevice.h> |
| 38 | #include <linux/skbuff.h> |
| 39 | #include <linux/if_arp.h> |
| 40 | #include <linux/ioport.h> |
| 41 | #include <linux/bitops.h> |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 42 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <pcmcia/cs_types.h> |
| 45 | #include <pcmcia/cs.h> |
| 46 | #include <pcmcia/cistpl.h> |
| 47 | #include <pcmcia/cisreg.h> |
| 48 | #include <pcmcia/ciscode.h> |
| 49 | #include <pcmcia/ds.h> |
| 50 | |
| 51 | #include <asm/uaccess.h> |
| 52 | #include <asm/io.h> |
| 53 | #include <asm/system.h> |
| 54 | |
| 55 | /* To minimize the size of the driver source I only define operating |
| 56 | constants if they are used several times. You'll need the manual |
| 57 | if you want to understand driver details. */ |
| 58 | /* Offsets from base I/O address. */ |
| 59 | #define EL3_DATA 0x00 |
| 60 | #define EL3_TIMER 0x0a |
| 61 | #define EL3_CMD 0x0e |
| 62 | #define EL3_STATUS 0x0e |
| 63 | |
| 64 | #define EEPROM_READ 0x0080 |
| 65 | #define EEPROM_BUSY 0x8000 |
| 66 | |
| 67 | #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD) |
| 68 | |
| 69 | /* The top five bits written to EL3_CMD are a command, the lower |
| 70 | 11 bits are the parameter, if applicable. */ |
| 71 | enum c509cmd { |
| 72 | TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, |
| 73 | RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, |
| 74 | TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, |
| 75 | FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, |
| 76 | SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, |
| 77 | SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, |
| 78 | StatsDisable = 22<<11, StopCoax = 23<<11, |
| 79 | }; |
| 80 | |
| 81 | enum c509status { |
| 82 | IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, |
| 83 | TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, |
| 84 | IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000 |
| 85 | }; |
| 86 | |
| 87 | /* The SetRxFilter command accepts the following classes: */ |
| 88 | enum RxFilter { |
| 89 | RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 |
| 90 | }; |
| 91 | |
| 92 | /* Register window 1 offsets, the window used in normal operation. */ |
| 93 | #define TX_FIFO 0x00 |
| 94 | #define RX_FIFO 0x00 |
| 95 | #define RX_STATUS 0x08 |
| 96 | #define TX_STATUS 0x0B |
| 97 | #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ |
| 98 | |
| 99 | #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */ |
| 100 | #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */ |
| 101 | #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */ |
| 102 | #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */ |
| 103 | |
| 104 | /* Time in jiffies before concluding Tx hung */ |
| 105 | #define TX_TIMEOUT ((400*HZ)/1000) |
| 106 | |
| 107 | struct el3_private { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 108 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | dev_node_t node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | /* For transceiver monitoring */ |
| 111 | struct timer_list media; |
| 112 | u16 media_status; |
| 113 | u16 fast_poll; |
| 114 | unsigned long last_irq; |
| 115 | spinlock_t lock; |
| 116 | }; |
| 117 | |
Jeff Garzik | 21c0f27 | 2007-09-25 00:11:34 -0400 | [diff] [blame] | 118 | static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
| 120 | /*====================================================================*/ |
| 121 | |
| 122 | /* Module parameters */ |
| 123 | |
| 124 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); |
| 125 | MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver"); |
| 126 | MODULE_LICENSE("GPL"); |
| 127 | |
| 128 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) |
| 129 | |
| 130 | /* Special hook for setting if_port when module is loaded */ |
| 131 | INT_MODULE_PARM(if_port, 0); |
| 132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | /*====================================================================*/ |
| 135 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 136 | static int tc589_config(struct pcmcia_device *link); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 137 | static void tc589_release(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 139 | static u16 read_eeprom(unsigned int ioaddr, int index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | static void tc589_reset(struct net_device *dev); |
| 141 | static void media_check(unsigned long arg); |
| 142 | static int el3_config(struct net_device *dev, struct ifmap *map); |
| 143 | static int el3_open(struct net_device *dev); |
Stephen Hemminger | dbf02fa | 2009-08-31 19:50:49 +0000 | [diff] [blame] | 144 | static netdev_tx_t el3_start_xmit(struct sk_buff *skb, |
| 145 | struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 146 | static irqreturn_t el3_interrupt(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | static void update_stats(struct net_device *dev); |
| 148 | static struct net_device_stats *el3_get_stats(struct net_device *dev); |
| 149 | static int el3_rx(struct net_device *dev); |
| 150 | static int el3_close(struct net_device *dev); |
| 151 | static void el3_tx_timeout(struct net_device *dev); |
Ken Kawasaki | e445bb4 | 2009-07-19 13:08:12 +0000 | [diff] [blame] | 152 | static void set_rx_mode(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | static void set_multicast_list(struct net_device *dev); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 154 | static const struct ethtool_ops netdev_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 156 | static void tc589_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | /*====================================================================== |
| 159 | |
| 160 | tc589_attach() creates an "instance" of the driver, allocating |
| 161 | local data structures for one device. The device is registered |
| 162 | with Card Services. |
| 163 | |
| 164 | ======================================================================*/ |
| 165 | |
Stephen Hemminger | 97161d4 | 2009-03-20 19:36:01 +0000 | [diff] [blame] | 166 | static const struct net_device_ops el3_netdev_ops = { |
| 167 | .ndo_open = el3_open, |
| 168 | .ndo_stop = el3_close, |
| 169 | .ndo_start_xmit = el3_start_xmit, |
| 170 | .ndo_tx_timeout = el3_tx_timeout, |
| 171 | .ndo_set_config = el3_config, |
| 172 | .ndo_get_stats = el3_get_stats, |
| 173 | .ndo_set_multicast_list = set_multicast_list, |
| 174 | .ndo_change_mtu = eth_change_mtu, |
| 175 | .ndo_set_mac_address = eth_mac_addr, |
| 176 | .ndo_validate_addr = eth_validate_addr, |
| 177 | }; |
| 178 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 179 | static int tc589_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | { |
| 181 | struct el3_private *lp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 184 | dev_dbg(&link->dev, "3c589_attach()\n"); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 185 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | /* Create new ethernet device */ |
| 187 | dev = alloc_etherdev(sizeof(struct el3_private)); |
| 188 | if (!dev) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 189 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | lp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | link->priv = dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 192 | lp->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
| 194 | spin_lock_init(&lp->lock); |
| 195 | link->io.NumPorts1 = 16; |
| 196 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
Dominik Brodowski | 5fa9167 | 2009-11-08 17:24:46 +0100 | [diff] [blame] | 197 | link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | link->irq.Handler = &el3_interrupt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | link->conf.Attributes = CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 201 | link->conf.ConfigIndex = 1; |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 202 | |
Stephen Hemminger | 97161d4 | 2009-03-20 19:36:01 +0000 | [diff] [blame] | 203 | dev->netdev_ops = &el3_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | dev->watchdog_timeo = TX_TIMEOUT; |
Stephen Hemminger | 97161d4 | 2009-03-20 19:36:01 +0000 | [diff] [blame] | 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); |
| 207 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 208 | return tc589_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | } /* tc589_attach */ |
| 210 | |
| 211 | /*====================================================================== |
| 212 | |
| 213 | This deletes a driver "instance". The device is de-registered |
| 214 | with Card Services. If it has been released, all local data |
| 215 | structures are freed. Otherwise, the structures will be freed |
| 216 | when the device is released. |
| 217 | |
| 218 | ======================================================================*/ |
| 219 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 220 | static void tc589_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | { |
| 222 | struct net_device *dev = link->priv; |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 223 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 224 | dev_dbg(&link->dev, "3c589_detach\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 226 | if (link->dev_node) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | unregister_netdev(dev); |
| 228 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 229 | tc589_release(link); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 230 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | free_netdev(dev); |
| 232 | } /* tc589_detach */ |
| 233 | |
| 234 | /*====================================================================== |
| 235 | |
| 236 | tc589_config() is scheduled to run after a CARD_INSERTION event |
| 237 | is received, to configure the PCMCIA socket, and to make the |
| 238 | ethernet device available to the system. |
| 239 | |
| 240 | ======================================================================*/ |
| 241 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 242 | static int tc589_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | struct net_device *dev = link->priv; |
| 245 | struct el3_private *lp = netdev_priv(dev); |
Al Viro | b1e247a | 2007-12-22 18:56:13 +0000 | [diff] [blame] | 246 | __be16 *phys_addr; |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 247 | int ret, i, j, multi = 0, fifo; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 248 | unsigned int ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"}; |
Dominik Brodowski | dddfbd8 | 2009-10-18 23:54:24 +0200 | [diff] [blame] | 250 | u8 *buf; |
| 251 | size_t len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 253 | dev_dbg(&link->dev, "3c589_config\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Al Viro | b1e247a | 2007-12-22 18:56:13 +0000 | [diff] [blame] | 255 | phys_addr = (__be16 *)dev->dev_addr; |
Dominik Brodowski | efd5058 | 2006-10-25 21:28:53 -0400 | [diff] [blame] | 256 | /* Is this a 3c562? */ |
| 257 | if (link->manf_id != MANFID_3COM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | printk(KERN_INFO "3c589_cs: hmmm, is this really a " |
| 259 | "3Com card??\n"); |
Dominik Brodowski | efd5058 | 2006-10-25 21:28:53 -0400 | [diff] [blame] | 260 | multi = (link->card_id == PRODID_3COM_3C562); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | /* For the 3c562, the base address must be xx00-xx7f */ |
| 263 | link->io.IOAddrLines = 16; |
| 264 | for (i = j = 0; j < 0x400; j += 0x10) { |
| 265 | if (multi && (j & 0x80)) continue; |
| 266 | link->io.BasePort1 = j ^ 0x300; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 267 | i = pcmcia_request_io(link, &link->io); |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 268 | if (i == 0) |
| 269 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 271 | if (i != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | goto failed; |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 273 | |
| 274 | ret = pcmcia_request_irq(link, &link->irq); |
| 275 | if (ret) |
| 276 | goto failed; |
| 277 | |
| 278 | ret = pcmcia_request_configuration(link, &link->conf); |
| 279 | if (ret) |
| 280 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | dev->irq = link->irq.AssignedIRQ; |
| 283 | dev->base_addr = link->io.BasePort1; |
| 284 | ioaddr = dev->base_addr; |
| 285 | EL3WINDOW(0); |
| 286 | |
| 287 | /* The 3c589 has an extra EEPROM for configuration info, including |
| 288 | the hardware address. The 3c562 puts the address in the CIS. */ |
Dominik Brodowski | dddfbd8 | 2009-10-18 23:54:24 +0200 | [diff] [blame] | 289 | len = pcmcia_get_tuple(link, 0x88, &buf); |
| 290 | if (buf && len >= 6) { |
| 291 | for (i = 0; i < 3; i++) |
| 292 | phys_addr[i] = htons(le16_to_cpu(buf[i*2])); |
| 293 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | } else { |
Dominik Brodowski | dddfbd8 | 2009-10-18 23:54:24 +0200 | [diff] [blame] | 295 | kfree(buf); /* 0 < len < 6 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | for (i = 0; i < 3; i++) |
| 297 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); |
Al Viro | b1e247a | 2007-12-22 18:56:13 +0000 | [diff] [blame] | 298 | if (phys_addr[0] == htons(0x6060)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx" |
| 300 | "-0x%03lx\n", dev->base_addr, dev->base_addr+15); |
| 301 | goto failed; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | /* The address and resource configuration register aren't loaded from |
| 306 | the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */ |
| 307 | outw(0x3f00, ioaddr + 8); |
| 308 | fifo = inl(ioaddr); |
| 309 | |
| 310 | /* The if_port symbol can be set when the module is loaded */ |
| 311 | if ((if_port >= 0) && (if_port <= 3)) |
| 312 | dev->if_port = if_port; |
| 313 | else |
| 314 | printk(KERN_ERR "3c589_cs: invalid if_port requested\n"); |
| 315 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 316 | link->dev_node = &lp->node; |
Dominik Brodowski | dd2e5a1 | 2009-11-03 10:27:34 +0100 | [diff] [blame] | 317 | SET_NETDEV_DEV(dev, &link->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
| 319 | if (register_netdev(dev) != 0) { |
| 320 | printk(KERN_ERR "3c589_cs: register_netdev() failed\n"); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 321 | link->dev_node = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | goto failed; |
| 323 | } |
| 324 | |
| 325 | strcpy(lp->node.dev_name, dev->name); |
| 326 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 327 | printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, " |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 328 | "hw_addr %pM\n", |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 329 | dev->name, (multi ? "562" : "589"), dev->base_addr, dev->irq, |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 330 | dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | printk(KERN_INFO " %dK FIFO split %s Rx:Tx, %s xcvr\n", |
| 332 | (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3], |
| 333 | if_names[dev->if_port]); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 334 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | failed: |
| 337 | tc589_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 338 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | } /* tc589_config */ |
| 340 | |
| 341 | /*====================================================================== |
| 342 | |
| 343 | After a card is removed, tc589_release() will unregister the net |
| 344 | device, and release the PCMCIA configuration. If the device is |
| 345 | still open, this will be postponed until it is closed. |
| 346 | |
| 347 | ======================================================================*/ |
| 348 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 349 | static void tc589_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 351 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } |
| 353 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 354 | static int tc589_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 355 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 356 | struct net_device *dev = link->priv; |
| 357 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 358 | if (link->open) |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 359 | netif_device_detach(dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 360 | |
| 361 | return 0; |
| 362 | } |
| 363 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 364 | static int tc589_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 365 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 366 | struct net_device *dev = link->priv; |
| 367 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 368 | if (link->open) { |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 369 | tc589_reset(dev); |
| 370 | netif_device_attach(dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | return 0; |
| 374 | } |
| 375 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | /*====================================================================*/ |
| 377 | |
| 378 | /* |
| 379 | Use this for commands that may take time to finish |
| 380 | */ |
| 381 | static void tc589_wait_for_completion(struct net_device *dev, int cmd) |
| 382 | { |
| 383 | int i = 100; |
| 384 | outw(cmd, dev->base_addr + EL3_CMD); |
| 385 | while (--i > 0) |
| 386 | if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break; |
| 387 | if (i == 0) |
| 388 | printk(KERN_WARNING "%s: command 0x%04x did not complete!\n", |
| 389 | dev->name, cmd); |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | Read a word from the EEPROM using the regular EEPROM access register. |
| 394 | Assume that we are in register window zero. |
| 395 | */ |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 396 | static u16 read_eeprom(unsigned int ioaddr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | { |
| 398 | int i; |
| 399 | outw(EEPROM_READ + index, ioaddr + 10); |
| 400 | /* Reading the eeprom takes 162 us */ |
| 401 | for (i = 1620; i >= 0; i--) |
| 402 | if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0) |
| 403 | break; |
| 404 | return inw(ioaddr + 12); |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | Set transceiver type, perhaps to something other than what the user |
| 409 | specified in dev->if_port. |
| 410 | */ |
| 411 | static void tc589_set_xcvr(struct net_device *dev, int if_port) |
| 412 | { |
| 413 | struct el3_private *lp = netdev_priv(dev); |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 414 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | |
| 416 | EL3WINDOW(0); |
| 417 | switch (if_port) { |
| 418 | case 0: case 1: outw(0, ioaddr + 6); break; |
| 419 | case 2: outw(3<<14, ioaddr + 6); break; |
| 420 | case 3: outw(1<<14, ioaddr + 6); break; |
| 421 | } |
| 422 | /* On PCMCIA, this just turns on the LED */ |
| 423 | outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD); |
| 424 | /* 10baseT interface, enable link beat and jabber check. */ |
| 425 | EL3WINDOW(4); |
| 426 | outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA); |
| 427 | EL3WINDOW(1); |
| 428 | if (if_port == 2) |
| 429 | lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000); |
| 430 | else |
| 431 | lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800); |
| 432 | } |
| 433 | |
| 434 | static void dump_status(struct net_device *dev) |
| 435 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 436 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | EL3WINDOW(1); |
| 438 | printk(KERN_INFO " irq status %04x, rx status %04x, tx status " |
| 439 | "%02x tx free %04x\n", inw(ioaddr+EL3_STATUS), |
| 440 | inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS), |
| 441 | inw(ioaddr+TX_FREE)); |
| 442 | EL3WINDOW(4); |
| 443 | printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x" |
| 444 | " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06), |
| 445 | inw(ioaddr+0x08), inw(ioaddr+0x0a)); |
| 446 | EL3WINDOW(1); |
| 447 | } |
| 448 | |
| 449 | /* Reset and restore all of the 3c589 registers. */ |
| 450 | static void tc589_reset(struct net_device *dev) |
| 451 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 452 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | int i; |
| 454 | |
| 455 | EL3WINDOW(0); |
| 456 | outw(0x0001, ioaddr + 4); /* Activate board. */ |
| 457 | outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */ |
| 458 | |
| 459 | /* Set the station address in window 2. */ |
| 460 | EL3WINDOW(2); |
| 461 | for (i = 0; i < 6; i++) |
| 462 | outb(dev->dev_addr[i], ioaddr + i); |
| 463 | |
| 464 | tc589_set_xcvr(dev, dev->if_port); |
| 465 | |
| 466 | /* Switch to the stats window, and clear all stats by reading. */ |
| 467 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 468 | EL3WINDOW(6); |
| 469 | for (i = 0; i < 9; i++) |
| 470 | inb(ioaddr+i); |
| 471 | inw(ioaddr + 10); |
| 472 | inw(ioaddr + 12); |
| 473 | |
| 474 | /* Switch to register set 1 for normal use. */ |
| 475 | EL3WINDOW(1); |
| 476 | |
Ken Kawasaki | e445bb4 | 2009-07-19 13:08:12 +0000 | [diff] [blame] | 477 | set_rx_mode(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ |
| 479 | outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ |
| 480 | outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ |
| 481 | /* Allow status bits to be seen. */ |
| 482 | outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); |
| 483 | /* Ack all pending events, and set active indicator mask. */ |
| 484 | outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
| 485 | ioaddr + EL3_CMD); |
| 486 | outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull |
| 487 | | AdapterFailure, ioaddr + EL3_CMD); |
| 488 | } |
| 489 | |
| 490 | static void netdev_get_drvinfo(struct net_device *dev, |
| 491 | struct ethtool_drvinfo *info) |
| 492 | { |
| 493 | strcpy(info->driver, DRV_NAME); |
| 494 | strcpy(info->version, DRV_VERSION); |
| 495 | sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr); |
| 496 | } |
| 497 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 498 | static const struct ethtool_ops netdev_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | .get_drvinfo = netdev_get_drvinfo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | }; |
| 501 | |
| 502 | static int el3_config(struct net_device *dev, struct ifmap *map) |
| 503 | { |
| 504 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { |
| 505 | if (map->port <= 3) { |
| 506 | dev->if_port = map->port; |
| 507 | printk(KERN_INFO "%s: switched to %s port\n", |
| 508 | dev->name, if_names[dev->if_port]); |
| 509 | tc589_set_xcvr(dev, dev->if_port); |
| 510 | } else |
| 511 | return -EINVAL; |
| 512 | } |
| 513 | return 0; |
| 514 | } |
| 515 | |
| 516 | static int el3_open(struct net_device *dev) |
| 517 | { |
| 518 | struct el3_private *lp = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 519 | struct pcmcia_device *link = lp->p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 521 | if (!pcmcia_dev_present(link)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | return -ENODEV; |
| 523 | |
| 524 | link->open++; |
| 525 | netif_start_queue(dev); |
| 526 | |
| 527 | tc589_reset(dev); |
| 528 | init_timer(&lp->media); |
| 529 | lp->media.function = &media_check; |
| 530 | lp->media.data = (unsigned long) dev; |
| 531 | lp->media.expires = jiffies + HZ; |
| 532 | add_timer(&lp->media); |
| 533 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 534 | dev_dbg(&link->dev, "%s: opened, status %4.4x.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | dev->name, inw(dev->base_addr + EL3_STATUS)); |
| 536 | |
| 537 | return 0; |
| 538 | } |
| 539 | |
| 540 | static void el3_tx_timeout(struct net_device *dev) |
| 541 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 542 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
| 544 | printk(KERN_WARNING "%s: Transmit timed out!\n", dev->name); |
| 545 | dump_status(dev); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 546 | dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | dev->trans_start = jiffies; |
| 548 | /* Issue TX_RESET and TX_START commands. */ |
| 549 | tc589_wait_for_completion(dev, TxReset); |
| 550 | outw(TxEnable, ioaddr + EL3_CMD); |
| 551 | netif_wake_queue(dev); |
| 552 | } |
| 553 | |
| 554 | static void pop_tx_status(struct net_device *dev) |
| 555 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 556 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | int i; |
| 558 | |
| 559 | /* Clear the Tx status stack. */ |
| 560 | for (i = 32; i > 0; i--) { |
| 561 | u_char tx_status = inb(ioaddr + TX_STATUS); |
| 562 | if (!(tx_status & 0x84)) break; |
| 563 | /* reset transmitter on jabber error or underrun */ |
| 564 | if (tx_status & 0x30) |
| 565 | tc589_wait_for_completion(dev, TxReset); |
| 566 | if (tx_status & 0x38) { |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 567 | pr_debug("%s: transmit error: status 0x%02x\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | dev->name, tx_status); |
| 569 | outw(TxEnable, ioaddr + EL3_CMD); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 570 | dev->stats.tx_aborted_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | } |
| 572 | outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ |
| 573 | } |
| 574 | } |
| 575 | |
Stephen Hemminger | dbf02fa | 2009-08-31 19:50:49 +0000 | [diff] [blame] | 576 | static netdev_tx_t el3_start_xmit(struct sk_buff *skb, |
| 577 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 579 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | struct el3_private *priv = netdev_priv(dev); |
Komuro | d08d283 | 2006-12-02 11:53:27 +0900 | [diff] [blame] | 581 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 583 | pr_debug("%s: el3_start_xmit(length = %ld) called, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | "status %4.4x.\n", dev->name, (long)skb->len, |
| 585 | inw(ioaddr + EL3_STATUS)); |
| 586 | |
Komuro | d08d283 | 2006-12-02 11:53:27 +0900 | [diff] [blame] | 587 | spin_lock_irqsave(&priv->lock, flags); |
| 588 | |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 589 | dev->stats.tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | |
| 591 | /* Put out the doubleword header... */ |
| 592 | outw(skb->len, ioaddr + TX_FIFO); |
| 593 | outw(0x00, ioaddr + TX_FIFO); |
| 594 | /* ... and the packet rounded to a doubleword. */ |
| 595 | outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
| 596 | |
| 597 | dev->trans_start = jiffies; |
| 598 | if (inw(ioaddr + TX_FREE) <= 1536) { |
| 599 | netif_stop_queue(dev); |
| 600 | /* Interrupt us when the FIFO has room for max-sized packet. */ |
| 601 | outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); |
| 602 | } |
| 603 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | pop_tx_status(dev); |
Komuro | d08d283 | 2006-12-02 11:53:27 +0900 | [diff] [blame] | 605 | spin_unlock_irqrestore(&priv->lock, flags); |
Patrick McHardy | 63ac9b9 | 2007-07-02 16:08:28 +0200 | [diff] [blame] | 606 | dev_kfree_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 608 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | /* The EL3 interrupt handler. */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 612 | static irqreturn_t el3_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | { |
| 614 | struct net_device *dev = (struct net_device *) dev_id; |
| 615 | struct el3_private *lp = netdev_priv(dev); |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 616 | unsigned int ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | __u16 status; |
| 618 | int i = 0, handled = 1; |
| 619 | |
| 620 | if (!netif_device_present(dev)) |
| 621 | return IRQ_NONE; |
| 622 | |
| 623 | ioaddr = dev->base_addr; |
| 624 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 625 | pr_debug("%s: interrupt, status %4.4x.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | dev->name, inw(ioaddr + EL3_STATUS)); |
| 627 | |
| 628 | spin_lock(&lp->lock); |
| 629 | while ((status = inw(ioaddr + EL3_STATUS)) & |
| 630 | (IntLatch | RxComplete | StatsFull)) { |
| 631 | if ((status & 0xe000) != 0x2000) { |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 632 | pr_debug("%s: interrupt from dead card\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | handled = 0; |
| 634 | break; |
| 635 | } |
| 636 | |
| 637 | if (status & RxComplete) |
| 638 | el3_rx(dev); |
| 639 | |
| 640 | if (status & TxAvailable) { |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 641 | pr_debug(" TX room bit was handled.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | /* There's room in the FIFO for a full-sized packet. */ |
| 643 | outw(AckIntr | TxAvailable, ioaddr + EL3_CMD); |
| 644 | netif_wake_queue(dev); |
| 645 | } |
| 646 | |
| 647 | if (status & TxComplete) |
| 648 | pop_tx_status(dev); |
| 649 | |
| 650 | if (status & (AdapterFailure | RxEarly | StatsFull)) { |
| 651 | /* Handle all uncommon interrupts. */ |
| 652 | if (status & StatsFull) /* Empty statistics. */ |
| 653 | update_stats(dev); |
| 654 | if (status & RxEarly) { /* Rx early is unused. */ |
| 655 | el3_rx(dev); |
| 656 | outw(AckIntr | RxEarly, ioaddr + EL3_CMD); |
| 657 | } |
| 658 | if (status & AdapterFailure) { |
| 659 | u16 fifo_diag; |
| 660 | EL3WINDOW(4); |
| 661 | fifo_diag = inw(ioaddr + 4); |
| 662 | EL3WINDOW(1); |
| 663 | printk(KERN_WARNING "%s: adapter failure, FIFO diagnostic" |
| 664 | " register %04x.\n", dev->name, fifo_diag); |
| 665 | if (fifo_diag & 0x0400) { |
| 666 | /* Tx overrun */ |
| 667 | tc589_wait_for_completion(dev, TxReset); |
| 668 | outw(TxEnable, ioaddr + EL3_CMD); |
| 669 | } |
| 670 | if (fifo_diag & 0x2000) { |
| 671 | /* Rx underrun */ |
| 672 | tc589_wait_for_completion(dev, RxReset); |
Ken Kawasaki | e445bb4 | 2009-07-19 13:08:12 +0000 | [diff] [blame] | 673 | set_rx_mode(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | outw(RxEnable, ioaddr + EL3_CMD); |
| 675 | } |
| 676 | outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | if (++i > 10) { |
| 681 | printk(KERN_ERR "%s: infinite loop in interrupt, " |
| 682 | "status %4.4x.\n", dev->name, status); |
| 683 | /* Clear all interrupts */ |
| 684 | outw(AckIntr | 0xFF, ioaddr + EL3_CMD); |
| 685 | break; |
| 686 | } |
| 687 | /* Acknowledge the IRQ. */ |
| 688 | outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); |
| 689 | } |
| 690 | |
| 691 | lp->last_irq = jiffies; |
| 692 | spin_unlock(&lp->lock); |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 693 | pr_debug("%s: exiting interrupt, status %4.4x.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | dev->name, inw(ioaddr + EL3_STATUS)); |
| 695 | return IRQ_RETVAL(handled); |
| 696 | } |
| 697 | |
| 698 | static void media_check(unsigned long arg) |
| 699 | { |
| 700 | struct net_device *dev = (struct net_device *)(arg); |
| 701 | struct el3_private *lp = netdev_priv(dev); |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 702 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | u16 media, errs; |
| 704 | unsigned long flags; |
| 705 | |
| 706 | if (!netif_device_present(dev)) goto reschedule; |
| 707 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | /* Check for pending interrupt with expired latency timer: with |
| 709 | this, we can limp along even if the interrupt is blocked */ |
| 710 | if ((inw(ioaddr + EL3_STATUS) & IntLatch) && |
| 711 | (inb(ioaddr + EL3_TIMER) == 0xff)) { |
| 712 | if (!lp->fast_poll) |
| 713 | printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name); |
Komuro | d08d283 | 2006-12-02 11:53:27 +0900 | [diff] [blame] | 714 | el3_interrupt(dev->irq, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | lp->fast_poll = HZ; |
| 716 | } |
| 717 | if (lp->fast_poll) { |
| 718 | lp->fast_poll--; |
| 719 | lp->media.expires = jiffies + HZ/100; |
| 720 | add_timer(&lp->media); |
| 721 | return; |
| 722 | } |
| 723 | |
| 724 | /* lp->lock guards the EL3 window. Window should always be 1 except |
| 725 | when the lock is held */ |
| 726 | spin_lock_irqsave(&lp->lock, flags); |
| 727 | EL3WINDOW(4); |
| 728 | media = inw(ioaddr+WN4_MEDIA) & 0xc810; |
| 729 | |
| 730 | /* Ignore collisions unless we've had no irq's recently */ |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 731 | if (time_before(jiffies, lp->last_irq + HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | media &= ~0x0010; |
| 733 | } else { |
| 734 | /* Try harder to detect carrier errors */ |
| 735 | EL3WINDOW(6); |
| 736 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 737 | errs = inb(ioaddr + 0); |
| 738 | outw(StatsEnable, ioaddr + EL3_CMD); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 739 | dev->stats.tx_carrier_errors += errs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | if (errs || (lp->media_status & 0x0010)) media |= 0x0010; |
| 741 | } |
| 742 | |
| 743 | if (media != lp->media_status) { |
| 744 | if ((media & lp->media_status & 0x8000) && |
| 745 | ((lp->media_status ^ media) & 0x0800)) |
| 746 | printk(KERN_INFO "%s: %s link beat\n", dev->name, |
| 747 | (lp->media_status & 0x0800 ? "lost" : "found")); |
| 748 | else if ((media & lp->media_status & 0x4000) && |
| 749 | ((lp->media_status ^ media) & 0x0010)) |
| 750 | printk(KERN_INFO "%s: coax cable %s\n", dev->name, |
| 751 | (lp->media_status & 0x0010 ? "ok" : "problem")); |
| 752 | if (dev->if_port == 0) { |
| 753 | if (media & 0x8000) { |
| 754 | if (media & 0x0800) |
| 755 | printk(KERN_INFO "%s: flipped to 10baseT\n", |
| 756 | dev->name); |
| 757 | else |
| 758 | tc589_set_xcvr(dev, 2); |
| 759 | } else if (media & 0x4000) { |
| 760 | if (media & 0x0010) |
| 761 | tc589_set_xcvr(dev, 1); |
| 762 | else |
| 763 | printk(KERN_INFO "%s: flipped to 10base2\n", |
| 764 | dev->name); |
| 765 | } |
| 766 | } |
| 767 | lp->media_status = media; |
| 768 | } |
| 769 | |
| 770 | EL3WINDOW(1); |
| 771 | spin_unlock_irqrestore(&lp->lock, flags); |
| 772 | |
| 773 | reschedule: |
| 774 | lp->media.expires = jiffies + HZ; |
| 775 | add_timer(&lp->media); |
| 776 | } |
| 777 | |
| 778 | static struct net_device_stats *el3_get_stats(struct net_device *dev) |
| 779 | { |
| 780 | struct el3_private *lp = netdev_priv(dev); |
| 781 | unsigned long flags; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 782 | struct pcmcia_device *link = lp->p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 784 | if (pcmcia_dev_present(link)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | spin_lock_irqsave(&lp->lock, flags); |
| 786 | update_stats(dev); |
| 787 | spin_unlock_irqrestore(&lp->lock, flags); |
| 788 | } |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 789 | return &dev->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | } |
| 791 | |
| 792 | /* |
| 793 | Update statistics. We change to register window 6, so this should be run |
| 794 | single-threaded if the device is active. This is expected to be a rare |
| 795 | operation, and it's simpler for the rest of the driver to assume that |
| 796 | window 1 is always valid rather than use a special window-state variable. |
| 797 | |
| 798 | Caller must hold the lock for this |
| 799 | */ |
| 800 | static void update_stats(struct net_device *dev) |
| 801 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 802 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 804 | pr_debug("%s: updating the statistics.\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | /* Turn off statistics updates while reading. */ |
| 806 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 807 | /* Switch to the stats window, and read everything. */ |
| 808 | EL3WINDOW(6); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 809 | dev->stats.tx_carrier_errors += inb(ioaddr + 0); |
| 810 | dev->stats.tx_heartbeat_errors += inb(ioaddr + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | /* Multiple collisions. */ inb(ioaddr + 2); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 812 | dev->stats.collisions += inb(ioaddr + 3); |
| 813 | dev->stats.tx_window_errors += inb(ioaddr + 4); |
| 814 | dev->stats.rx_fifo_errors += inb(ioaddr + 5); |
| 815 | dev->stats.tx_packets += inb(ioaddr + 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | /* Rx packets */ inb(ioaddr + 7); |
| 817 | /* Tx deferrals */ inb(ioaddr + 8); |
| 818 | /* Rx octets */ inw(ioaddr + 10); |
| 819 | /* Tx octets */ inw(ioaddr + 12); |
| 820 | |
| 821 | /* Back to window 1, and turn statistics back on. */ |
| 822 | EL3WINDOW(1); |
| 823 | outw(StatsEnable, ioaddr + EL3_CMD); |
| 824 | } |
| 825 | |
| 826 | static int el3_rx(struct net_device *dev) |
| 827 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 828 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | int worklimit = 32; |
| 830 | short rx_status; |
| 831 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 832 | pr_debug("%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS)); |
| 834 | while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) && |
Roel Kluin | b9bdcd9 | 2009-03-04 00:05:56 -0800 | [diff] [blame] | 835 | worklimit > 0) { |
| 836 | worklimit--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | if (rx_status & 0x4000) { /* Error, update stats. */ |
| 838 | short error = rx_status & 0x3800; |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 839 | dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | switch (error) { |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 841 | case 0x0000: dev->stats.rx_over_errors++; break; |
| 842 | case 0x0800: dev->stats.rx_length_errors++; break; |
| 843 | case 0x1000: dev->stats.rx_frame_errors++; break; |
| 844 | case 0x1800: dev->stats.rx_length_errors++; break; |
| 845 | case 0x2000: dev->stats.rx_frame_errors++; break; |
| 846 | case 0x2800: dev->stats.rx_crc_errors++; break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | } |
| 848 | } else { |
| 849 | short pkt_len = rx_status & 0x7ff; |
| 850 | struct sk_buff *skb; |
| 851 | |
| 852 | skb = dev_alloc_skb(pkt_len+5); |
| 853 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 854 | pr_debug(" Receiving packet size %d status %4.4x.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | pkt_len, rx_status); |
| 856 | if (skb != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | skb_reserve(skb, 2); |
| 858 | insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len), |
| 859 | (pkt_len+3)>>2); |
| 860 | skb->protocol = eth_type_trans(skb, dev); |
| 861 | netif_rx(skb); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 862 | dev->stats.rx_packets++; |
| 863 | dev->stats.rx_bytes += pkt_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | } else { |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 865 | pr_debug("%s: couldn't allocate a sk_buff of" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | " size %d.\n", dev->name, pkt_len); |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 867 | dev->stats.rx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | } |
| 870 | /* Pop the top of the Rx FIFO */ |
| 871 | tc589_wait_for_completion(dev, RxDiscard); |
| 872 | } |
| 873 | if (worklimit == 0) |
| 874 | printk(KERN_WARNING "%s: too much work in el3_rx!\n", dev->name); |
| 875 | return 0; |
| 876 | } |
| 877 | |
Ken Kawasaki | e445bb4 | 2009-07-19 13:08:12 +0000 | [diff] [blame] | 878 | static void set_rx_mode(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | { |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 880 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | u16 opts = SetRxFilter | RxStation | RxBroadcast; |
| 882 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | if (dev->flags & IFF_PROMISC) |
| 884 | opts |= RxMulticast | RxProm; |
| 885 | else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) |
| 886 | opts |= RxMulticast; |
| 887 | outw(opts, ioaddr + EL3_CMD); |
| 888 | } |
| 889 | |
Ken Kawasaki | e445bb4 | 2009-07-19 13:08:12 +0000 | [diff] [blame] | 890 | static void set_multicast_list(struct net_device *dev) |
| 891 | { |
| 892 | struct el3_private *priv = netdev_priv(dev); |
| 893 | unsigned long flags; |
| 894 | |
| 895 | spin_lock_irqsave(&priv->lock, flags); |
| 896 | set_rx_mode(dev); |
| 897 | spin_unlock_irqrestore(&priv->lock, flags); |
| 898 | } |
| 899 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | static int el3_close(struct net_device *dev) |
| 901 | { |
| 902 | struct el3_private *lp = netdev_priv(dev); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 903 | struct pcmcia_device *link = lp->p_dev; |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 904 | unsigned int ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | |
Dominik Brodowski | dd0fab5 | 2009-10-24 15:51:05 +0200 | [diff] [blame] | 906 | dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 908 | if (pcmcia_dev_present(link)) { |
Paulius Zaleckas | cd65284 | 2008-04-30 01:20:20 +0300 | [diff] [blame] | 909 | /* Turn off statistics ASAP. We update dev->stats below. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 911 | |
| 912 | /* Disable the receiver and transmitter. */ |
| 913 | outw(RxDisable, ioaddr + EL3_CMD); |
| 914 | outw(TxDisable, ioaddr + EL3_CMD); |
| 915 | |
| 916 | if (dev->if_port == 2) |
| 917 | /* Turn off thinnet power. Green! */ |
| 918 | outw(StopCoax, ioaddr + EL3_CMD); |
| 919 | else if (dev->if_port == 1) { |
| 920 | /* Disable link beat and jabber */ |
| 921 | EL3WINDOW(4); |
| 922 | outw(0, ioaddr + WN4_MEDIA); |
| 923 | } |
| 924 | |
| 925 | /* Switching back to window 0 disables the IRQ. */ |
| 926 | EL3WINDOW(0); |
| 927 | /* But we explicitly zero the IRQ line select anyway. */ |
| 928 | outw(0x0f00, ioaddr + WN0_IRQ); |
| 929 | |
| 930 | /* Check if the card still exists */ |
| 931 | if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000) |
| 932 | update_stats(dev); |
| 933 | } |
| 934 | |
| 935 | link->open--; |
| 936 | netif_stop_queue(dev); |
| 937 | del_timer_sync(&lp->media); |
| 938 | |
| 939 | return 0; |
| 940 | } |
| 941 | |
Dominik Brodowski | 7ffec58 | 2005-06-27 16:28:19 -0700 | [diff] [blame] | 942 | static struct pcmcia_device_id tc589_ids[] = { |
| 943 | PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562), |
| 944 | PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77), |
| 945 | PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589), |
| 946 | PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202), |
Ken Kawasaki | f0a3a15 | 2009-05-01 19:21:26 -0700 | [diff] [blame] | 947 | PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"), |
| 948 | PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"), |
Dominik Brodowski | 7ffec58 | 2005-06-27 16:28:19 -0700 | [diff] [blame] | 949 | PCMCIA_DEVICE_NULL, |
| 950 | }; |
| 951 | MODULE_DEVICE_TABLE(pcmcia, tc589_ids); |
| 952 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | static struct pcmcia_driver tc589_driver = { |
| 954 | .owner = THIS_MODULE, |
| 955 | .drv = { |
| 956 | .name = "3c589_cs", |
| 957 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 958 | .probe = tc589_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 959 | .remove = tc589_detach, |
Dominik Brodowski | 7ffec58 | 2005-06-27 16:28:19 -0700 | [diff] [blame] | 960 | .id_table = tc589_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 961 | .suspend = tc589_suspend, |
| 962 | .resume = tc589_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | }; |
| 964 | |
| 965 | static int __init init_tc589(void) |
| 966 | { |
| 967 | return pcmcia_register_driver(&tc589_driver); |
| 968 | } |
| 969 | |
| 970 | static void __exit exit_tc589(void) |
| 971 | { |
| 972 | pcmcia_unregister_driver(&tc589_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | module_init(init_tc589); |
| 976 | module_exit(exit_tc589); |