| 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Linux ThunderLAN Driver |
| 4 | * |
| 5 | * tlan.c |
| 6 | * by James Banks |
| 7 | * |
| 8 | * (C) 1997-1998 Caldera, Inc. |
| 9 | * (C) 1998 James Banks |
| 10 | * (C) 1999-2001 Torben Mathiasen |
| 11 | * (C) 2002 Samuel Chessman |
| 12 | * |
| 13 | * This software may be used and distributed according to the terms |
| 14 | * of the GNU General Public License, incorporated herein by reference. |
| 15 | * |
| 16 | ** Useful (if not required) reading: |
| 17 | * |
| 18 | * Texas Instruments, ThunderLAN Programmer's Guide, |
| 19 | * TI Literature Number SPWU013A |
| 20 | * available in PDF format from www.ti.com |
| 21 | * Level One, LXT901 and LXT970 Data Sheets |
| 22 | * available in PDF format from www.level1.com |
| 23 | * National Semiconductor, DP83840A Data Sheet |
| 24 | * available in PDF format from www.national.com |
| 25 | * Microchip Technology, 24C01A/02A/04A Data Sheet |
| 26 | * available in PDF format from www.microchip.com |
| 27 | * |
| 28 | * Change History |
| 29 | * |
| 30 | * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses |
| 31 | * new PCI BIOS interface. |
| 32 | * Alan Cox <alan@lxorguk.ukuu.org.uk>: |
| 33 | * Fixed the out of memory |
| 34 | * handling. |
| 35 | * |
| 36 | * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer! |
| 37 | * |
| 38 | * v1.1 Dec 20, 1999 - Removed linux version checking |
| 39 | * Patch from Tigran Aivazian. |
| 40 | * - v1.1 includes Alan's SMP updates. |
| 41 | * - We still have problems on SMP though, |
| 42 | * but I'm looking into that. |
| 43 | * |
| 44 | * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock. |
| 45 | * - Removed dependency of HZ being 100. |
| 46 | * - We now allow higher priority timers to |
| 47 | * overwrite timers like TLAN_TIMER_ACTIVITY |
| 48 | * Patch from John Cagle <john.cagle@compaq.com>. |
| 49 | * - Fixed a few compiler warnings. |
| 50 | * |
| 51 | * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues. |
| 52 | * - Removed call to pci_present(). |
| 53 | * - Removed SA_INTERRUPT flag from irq handler. |
| 54 | * - Added __init and __initdata to reduce resisdent |
| 55 | * code size. |
| 56 | * - Driver now uses module_init/module_exit. |
| 57 | * - Rewrote init_module and tlan_probe to |
| 58 | * share a lot more code. We now use tlan_probe |
| 59 | * with builtin and module driver. |
| 60 | * - Driver ported to new net API. |
| 61 | * - tlan.txt has been reworked to reflect current |
| 62 | * driver (almost) |
| 63 | * - Other minor stuff |
| 64 | * |
| 65 | * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's |
| 66 | * network cleanup in 2.3.43pre7 (Tigran & myself) |
| 67 | * - Minor stuff. |
| 68 | * |
| 69 | * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver |
| 70 | * if no cable/link were present. |
| 71 | * - Cosmetic changes. |
| 72 | * - TODO: Port completely to new PCI/DMA API |
| 73 | * Auto-Neg fallback. |
| 74 | * |
| 75 | * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't |
| 76 | * tested it though, as the kernel support is currently |
| 77 | * broken (2.3.99p4p3). |
| 78 | * - Updated tlan.txt accordingly. |
| 79 | * - Adjusted minimum/maximum frame length. |
| 80 | * - There is now a TLAN website up at |
| 81 | * http://tlan.kernel.dk |
| 82 | * |
| 83 | * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now |
| 84 | * reports PHY information when used with Donald |
| 85 | * Beckers userspace MII diagnostics utility. |
| 86 | * |
| 87 | * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings. |
| 88 | * - Added link information to Auto-Neg and forced |
| 89 | * modes. When NIC operates with auto-neg the driver |
| 90 | * will report Link speed & duplex modes as well as |
| 91 | * link partner abilities. When forced link is used, |
| 92 | * the driver will report status of the established |
| 93 | * link. |
| 94 | * Please read tlan.txt for additional information. |
| 95 | * - Removed call to check_region(), and used |
| 96 | * return value of request_region() instead. |
| 97 | * |
| 98 | * v1.8a May 28, 2000 - Minor updates. |
| 99 | * |
| 100 | * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues. |
| 101 | * - Updated with timer fixes from Andrew Morton. |
| 102 | * - Fixed module race in TLan_Open. |
| 103 | * - Added routine to monitor PHY status. |
| 104 | * - Added activity led support for Proliant devices. |
| 105 | * |
| 106 | * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers |
| 107 | * like the Compaq NetFlex3/E. |
| 108 | * - Rewrote tlan_probe to better handle multiple |
| 109 | * bus probes. Probing and device setup is now |
| 110 | * done through TLan_Probe and TLan_init_one. Actual |
| 111 | * hardware probe is done with kernel API and |
| 112 | * TLan_EisaProbe. |
| 113 | * - Adjusted debug information for probing. |
| 114 | * - Fixed bug that would cause general debug information |
| 115 | * to be printed after driver removal. |
| 116 | * - Added transmit timeout handling. |
| 117 | * - Fixed OOM return values in tlan_probe. |
| 118 | * - Fixed possible mem leak in tlan_exit |
| 119 | * (now tlan_remove_one). |
| 120 | * - Fixed timer bug in TLan_phyMonitor. |
| 121 | * - This driver version is alpha quality, please |
| 122 | * send me any bug issues you may encounter. |
| 123 | * |
| 124 | * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was |
| 125 | * set for EISA cards. |
| 126 | * - Added support for NetFlex3/E with nibble-rate |
| 127 | * 10Base-T PHY. This is untestet as I haven't got |
| 128 | * one of these cards. |
| 129 | * - Fixed timer being added twice. |
| 130 | * - Disabled PhyMonitoring by default as this is |
| 131 | * work in progress. Define MONITOR to enable it. |
| 132 | * - Now we don't display link info with PHYs that |
| 133 | * doesn't support it (level1). |
| 134 | * - Incresed tx_timeout beacuse of auto-neg. |
| 135 | * - Adjusted timers for forced speeds. |
| 136 | * |
| 137 | * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.) |
| 138 | * |
| 139 | * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues |
| 140 | * when link can't be established. |
| 141 | * - Added the bbuf option as a kernel parameter. |
| 142 | * - Fixed ioaddr probe bug. |
| 143 | * - Fixed stupid deadlock with MII interrupts. |
| 144 | * - Added support for speed/duplex selection with |
| 145 | * multiple nics. |
| 146 | * - Added partly fix for TX Channel lockup with |
| 147 | * TLAN v1.0 silicon. This needs to be investigated |
| 148 | * further. |
| 149 | * |
| 150 | * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per. |
| 151 | * interrupt. Thanks goes to |
| 152 | * Adam Keys <adam@ti.com> |
| 153 | * Denis Beaudoin <dbeaudoin@ti.com> |
| 154 | * for providing the patch. |
| 155 | * - Fixed auto-neg output when using multiple |
| 156 | * adapters. |
| 157 | * - Converted to use new taskq interface. |
| 158 | * |
| 159 | * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.) |
| 160 | * |
| 161 | * Samuel Chessman <chessman@tux.org> New Maintainer! |
| 162 | * |
| 163 | * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be |
| 164 | * 10T half duplex no loopback |
| 165 | * Thanks to Gunnar Eikman |
| 166 | * |
| 167 | * Sakari Ailus <sakari.ailus@iki.fi>: |
| 168 | * |
| 169 | * v1.15a Dec 15 2008 - Remove bbuf support, it doesn't work anyway. |
| 170 | * |
| 171 | *******************************************************************************/ |
| 172 | |
| 173 | #include <linux/module.h> |
| 174 | #include <linux/init.h> |
| 175 | #include <linux/ioport.h> |
| 176 | #include <linux/eisa.h> |
| 177 | #include <linux/pci.h> |
| 178 | #include <linux/dma-mapping.h> |
| 179 | #include <linux/netdevice.h> |
| 180 | #include <linux/etherdevice.h> |
| 181 | #include <linux/delay.h> |
| 182 | #include <linux/spinlock.h> |
| 183 | #include <linux/workqueue.h> |
| 184 | #include <linux/mii.h> |
| 185 | |
| 186 | #include "tlan.h" |
| 187 | |
| 188 | typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 ); |
| 189 | |
| 190 | |
| 191 | /* For removing EISA devices */ |
| 192 | static struct net_device *TLan_Eisa_Devices; |
| 193 | |
| 194 | static int TLanDevicesInstalled; |
| 195 | |
| 196 | /* Set speed, duplex and aui settings */ |
| 197 | static int aui[MAX_TLAN_BOARDS]; |
| 198 | static int duplex[MAX_TLAN_BOARDS]; |
| 199 | static int speed[MAX_TLAN_BOARDS]; |
| 200 | static int boards_found; |
| 201 | module_param_array(aui, int, NULL, 0); |
| 202 | module_param_array(duplex, int, NULL, 0); |
| 203 | module_param_array(speed, int, NULL, 0); |
| 204 | MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)"); |
| 205 | MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)"); |
| 206 | MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)"); |
| 207 | |
| 208 | MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>"); |
| 209 | MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters"); |
| 210 | MODULE_LICENSE("GPL"); |
| 211 | |
| 212 | |
| 213 | /* Define this to enable Link beat monitoring */ |
| 214 | #undef MONITOR |
| 215 | |
| 216 | /* Turn on debugging. See Documentation/networking/tlan.txt for details */ |
| 217 | static int debug; |
| 218 | module_param(debug, int, 0); |
| 219 | MODULE_PARM_DESC(debug, "ThunderLAN debug mask"); |
| 220 | |
| 221 | static const char TLanSignature[] = "TLAN"; |
| 222 | static const char tlan_banner[] = "ThunderLAN driver v1.15a\n"; |
| 223 | static int tlan_have_pci; |
| 224 | static int tlan_have_eisa; |
| 225 | |
| 226 | static const char *media[] = { |
| 227 | "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ", |
| 228 | "100baseTx-FD", "100baseT4", NULL |
| 229 | }; |
| 230 | |
| 231 | static struct board { |
| 232 | const char *deviceLabel; |
| 233 | u32 flags; |
| 234 | u16 addrOfs; |
| 235 | } board_info[] = { |
| 236 | { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| 237 | { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| 238 | { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
| 239 | { "Compaq NetFlex-3/P", |
| 240 | TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
| 241 | { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
| 242 | { "Compaq Netelligent Integrated 10/100 TX UTP", |
| 243 | TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| 244 | { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 }, |
| 245 | { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 }, |
| 246 | { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 }, |
| 247 | { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 }, |
| 248 | { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 }, |
| 249 | { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| 250 | { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 }, |
| 251 | { "Compaq NetFlex-3/E", |
| 252 | TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */ |
| 253 | TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
| 254 | { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */ |
| 255 | }; |
| 256 | |
| 257 | static struct pci_device_id tlan_pci_tbl[] = { |
| 258 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10, |
| 259 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| 260 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100, |
| 261 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, |
| 262 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I, |
| 263 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, |
| 264 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER, |
| 265 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, |
| 266 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B, |
| 267 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, |
| 268 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI, |
| 269 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, |
| 270 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D, |
| 271 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 }, |
| 272 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I, |
| 273 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 }, |
| 274 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183, |
| 275 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 }, |
| 276 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325, |
| 277 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 }, |
| 278 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326, |
| 279 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 }, |
| 280 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100, |
| 281 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 }, |
| 282 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2, |
| 283 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 }, |
| 284 | { 0,} |
| 285 | }; |
| 286 | MODULE_DEVICE_TABLE(pci, tlan_pci_tbl); |
| 287 | |
| 288 | static void TLan_EisaProbe( void ); |
| 289 | static void TLan_Eisa_Cleanup( void ); |
| 290 | static int TLan_Init( struct net_device * ); |
| 291 | static int TLan_Open( struct net_device *dev ); |
| 292 | static netdev_tx_t TLan_StartTx( struct sk_buff *, struct net_device *); |
| 293 | static irqreturn_t TLan_HandleInterrupt( int, void *); |
| 294 | static int TLan_Close( struct net_device *); |
| 295 | static struct net_device_stats *TLan_GetStats( struct net_device *); |
| 296 | static void TLan_SetMulticastList( struct net_device *); |
| 297 | static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd); |
| 298 | static int TLan_probe1( struct pci_dev *pdev, long ioaddr, |
| 299 | int irq, int rev, const struct pci_device_id *ent); |
| 300 | static void TLan_tx_timeout( struct net_device *dev); |
| 301 | static void TLan_tx_timeout_work(struct work_struct *work); |
| 302 | static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent); |
| 303 | |
| 304 | static u32 TLan_HandleTxEOF( struct net_device *, u16 ); |
| 305 | static u32 TLan_HandleStatOverflow( struct net_device *, u16 ); |
| 306 | static u32 TLan_HandleRxEOF( struct net_device *, u16 ); |
| 307 | static u32 TLan_HandleDummy( struct net_device *, u16 ); |
| 308 | static u32 TLan_HandleTxEOC( struct net_device *, u16 ); |
| 309 | static u32 TLan_HandleStatusCheck( struct net_device *, u16 ); |
| 310 | static u32 TLan_HandleRxEOC( struct net_device *, u16 ); |
| 311 | |
| 312 | static void TLan_Timer( unsigned long ); |
| 313 | |
| 314 | static void TLan_ResetLists( struct net_device * ); |
| 315 | static void TLan_FreeLists( struct net_device * ); |
| 316 | static void TLan_PrintDio( u16 ); |
| 317 | static void TLan_PrintList( TLanList *, char *, int ); |
| 318 | static void TLan_ReadAndClearStats( struct net_device *, int ); |
| 319 | static void TLan_ResetAdapter( struct net_device * ); |
| 320 | static void TLan_FinishReset( struct net_device * ); |
| 321 | static void TLan_SetMac( struct net_device *, int areg, char *mac ); |
| 322 | |
| 323 | static void TLan_PhyPrint( struct net_device * ); |
| 324 | static void TLan_PhyDetect( struct net_device * ); |
| 325 | static void TLan_PhyPowerDown( struct net_device * ); |
| 326 | static void TLan_PhyPowerUp( struct net_device * ); |
| 327 | static void TLan_PhyReset( struct net_device * ); |
| 328 | static void TLan_PhyStartLink( struct net_device * ); |
| 329 | static void TLan_PhyFinishAutoNeg( struct net_device * ); |
| 330 | #ifdef MONITOR |
| 331 | static void TLan_PhyMonitor( struct net_device * ); |
| 332 | #endif |
| 333 | |
| 334 | /* |
| 335 | static int TLan_PhyNop( struct net_device * ); |
| 336 | static int TLan_PhyInternalCheck( struct net_device * ); |
| 337 | static int TLan_PhyInternalService( struct net_device * ); |
| 338 | static int TLan_PhyDp83840aCheck( struct net_device * ); |
| 339 | */ |
| 340 | |
| 341 | static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * ); |
| 342 | static void TLan_MiiSendData( u16, u32, unsigned ); |
| 343 | static void TLan_MiiSync( u16 ); |
| 344 | static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 ); |
| 345 | |
| 346 | static void TLan_EeSendStart( u16 ); |
| 347 | static int TLan_EeSendByte( u16, u8, int ); |
| 348 | static void TLan_EeReceiveByte( u16, u8 *, int ); |
| 349 | static int TLan_EeReadByte( struct net_device *, u8, u8 * ); |
| 350 | |
| 351 | |
| 352 | static inline void |
| 353 | TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb) |
| 354 | { |
| 355 | unsigned long addr = (unsigned long)skb; |
| 356 | tag->buffer[9].address = addr; |
| 357 | tag->buffer[8].address = upper_32_bits(addr); |
| 358 | } |
| 359 | |
| 360 | static inline struct sk_buff * |
| 361 | TLan_GetSKB( const struct tlan_list_tag *tag) |
| 362 | { |
| 363 | unsigned long addr; |
| 364 | |
| 365 | addr = tag->buffer[9].address; |
| 366 | addr |= (tag->buffer[8].address << 16) << 16; |
| 367 | return (struct sk_buff *) addr; |
| 368 | } |
| 369 | |
| 370 | |
| 371 | static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = { |
| 372 | NULL, |
| 373 | TLan_HandleTxEOF, |
| 374 | TLan_HandleStatOverflow, |
| 375 | TLan_HandleRxEOF, |
| 376 | TLan_HandleDummy, |
| 377 | TLan_HandleTxEOC, |
| 378 | TLan_HandleStatusCheck, |
| 379 | TLan_HandleRxEOC |
| 380 | }; |
| 381 | |
| 382 | static inline void |
| 383 | TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type ) |
| 384 | { |
| 385 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 386 | unsigned long flags = 0; |
| 387 | |
| 388 | if (!in_irq()) |
| 389 | spin_lock_irqsave(&priv->lock, flags); |
| 390 | if ( priv->timer.function != NULL && |
| 391 | priv->timerType != TLAN_TIMER_ACTIVITY ) { |
| 392 | if (!in_irq()) |
| 393 | spin_unlock_irqrestore(&priv->lock, flags); |
| 394 | return; |
| 395 | } |
| 396 | priv->timer.function = &TLan_Timer; |
| 397 | if (!in_irq()) |
| 398 | spin_unlock_irqrestore(&priv->lock, flags); |
| 399 | |
| 400 | priv->timer.data = (unsigned long) dev; |
| 401 | priv->timerSetAt = jiffies; |
| 402 | priv->timerType = type; |
| 403 | mod_timer(&priv->timer, jiffies + ticks); |
| 404 | |
| 405 | } /* TLan_SetTimer */ |
| 406 | |
| 407 | |
| 408 | /***************************************************************************** |
| 409 | ****************************************************************************** |
| 410 | |
| 411 | ThunderLAN Driver Primary Functions |
| 412 | |
| 413 | These functions are more or less common to all Linux network drivers. |
| 414 | |
| 415 | ****************************************************************************** |
| 416 | *****************************************************************************/ |
| 417 | |
| 418 | |
| 419 | |
| 420 | |
| 421 | |
| 422 | /*************************************************************** |
| 423 | * tlan_remove_one |
| 424 | * |
| 425 | * Returns: |
| 426 | * Nothing |
| 427 | * Parms: |
| 428 | * None |
| 429 | * |
| 430 | * Goes through the TLanDevices list and frees the device |
| 431 | * structs and memory associated with each device (lists |
| 432 | * and buffers). It also ureserves the IO port regions |
| 433 | * associated with this device. |
| 434 | * |
| 435 | **************************************************************/ |
| 436 | |
| 437 | |
| 438 | static void __devexit tlan_remove_one( struct pci_dev *pdev) |
| 439 | { |
| 440 | struct net_device *dev = pci_get_drvdata( pdev ); |
| 441 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 442 | |
| 443 | unregister_netdev( dev ); |
| 444 | |
| 445 | if ( priv->dmaStorage ) { |
| 446 | pci_free_consistent(priv->pciDev, |
| 447 | priv->dmaSize, priv->dmaStorage, |
| 448 | priv->dmaStorageDMA ); |
| 449 | } |
| 450 | |
| 451 | #ifdef CONFIG_PCI |
| 452 | pci_release_regions(pdev); |
| 453 | #endif |
| 454 | |
| 455 | free_netdev( dev ); |
| 456 | |
| 457 | pci_set_drvdata( pdev, NULL ); |
| 458 | } |
| 459 | |
| 460 | static struct pci_driver tlan_driver = { |
| 461 | .name = "tlan", |
| 462 | .id_table = tlan_pci_tbl, |
| 463 | .probe = tlan_init_one, |
| 464 | .remove = __devexit_p(tlan_remove_one), |
| 465 | }; |
| 466 | |
| 467 | static int __init tlan_probe(void) |
| 468 | { |
| 469 | int rc = -ENODEV; |
| 470 | |
| 471 | printk(KERN_INFO "%s", tlan_banner); |
| 472 | |
| 473 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n"); |
| 474 | |
| 475 | /* Use new style PCI probing. Now the kernel will |
| 476 | do most of this for us */ |
| 477 | rc = pci_register_driver(&tlan_driver); |
| 478 | |
| 479 | if (rc != 0) { |
| 480 | printk(KERN_ERR "TLAN: Could not register pci driver.\n"); |
| 481 | goto err_out_pci_free; |
| 482 | } |
| 483 | |
| 484 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n"); |
| 485 | TLan_EisaProbe(); |
| 486 | |
| 487 | printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n", |
| 488 | TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s", |
| 489 | tlan_have_pci, tlan_have_eisa); |
| 490 | |
| 491 | if (TLanDevicesInstalled == 0) { |
| 492 | rc = -ENODEV; |
| 493 | goto err_out_pci_unreg; |
| 494 | } |
| 495 | return 0; |
| 496 | |
| 497 | err_out_pci_unreg: |
| 498 | pci_unregister_driver(&tlan_driver); |
| 499 | err_out_pci_free: |
| 500 | return rc; |
| 501 | } |
| 502 | |
| 503 | |
| 504 | static int __devinit tlan_init_one( struct pci_dev *pdev, |
| 505 | const struct pci_device_id *ent) |
| 506 | { |
| 507 | return TLan_probe1( pdev, -1, -1, 0, ent); |
| 508 | } |
| 509 | |
| 510 | |
| 511 | /* |
| 512 | *************************************************************** |
| 513 | * tlan_probe1 |
| 514 | * |
| 515 | * Returns: |
| 516 | * 0 on success, error code on error |
| 517 | * Parms: |
| 518 | * none |
| 519 | * |
| 520 | * The name is lower case to fit in with all the rest of |
| 521 | * the netcard_probe names. This function looks for |
| 522 | * another TLan based adapter, setting it up with the |
| 523 | * allocated device struct if one is found. |
| 524 | * tlan_probe has been ported to the new net API and |
| 525 | * now allocates its own device structure. This function |
| 526 | * is also used by modules. |
| 527 | * |
| 528 | **************************************************************/ |
| 529 | |
| 530 | static int __devinit TLan_probe1(struct pci_dev *pdev, |
| 531 | long ioaddr, int irq, int rev, |
| 532 | const struct pci_device_id *ent ) |
| 533 | { |
| 534 | |
| 535 | struct net_device *dev; |
| 536 | TLanPrivateInfo *priv; |
| 537 | u16 device_id; |
| 538 | int reg, rc = -ENODEV; |
| 539 | |
| 540 | #ifdef CONFIG_PCI |
| 541 | if (pdev) { |
| 542 | rc = pci_enable_device(pdev); |
| 543 | if (rc) |
| 544 | return rc; |
| 545 | |
| 546 | rc = pci_request_regions(pdev, TLanSignature); |
| 547 | if (rc) { |
| 548 | printk(KERN_ERR "TLAN: Could not reserve IO regions\n"); |
| 549 | goto err_out; |
| 550 | } |
| 551 | } |
| 552 | #endif /* CONFIG_PCI */ |
| 553 | |
| 554 | dev = alloc_etherdev(sizeof(TLanPrivateInfo)); |
| 555 | if (dev == NULL) { |
| 556 | printk(KERN_ERR "TLAN: Could not allocate memory for device.\n"); |
| 557 | rc = -ENOMEM; |
| 558 | goto err_out_regions; |
| 559 | } |
| 560 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 561 | |
| 562 | priv = netdev_priv(dev); |
| 563 | |
| 564 | priv->pciDev = pdev; |
| 565 | priv->dev = dev; |
| 566 | |
| 567 | /* Is this a PCI device? */ |
| 568 | if (pdev) { |
| 569 | u32 pci_io_base = 0; |
| 570 | |
| 571 | priv->adapter = &board_info[ent->driver_data]; |
| 572 | |
| 573 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 574 | if (rc) { |
| 575 | printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n"); |
| 576 | goto err_out_free_dev; |
| 577 | } |
| 578 | |
| 579 | for ( reg= 0; reg <= 5; reg ++ ) { |
| 580 | if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) { |
| 581 | pci_io_base = pci_resource_start(pdev, reg); |
| 582 | TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n", |
| 583 | pci_io_base); |
| 584 | break; |
| 585 | } |
| 586 | } |
| 587 | if (!pci_io_base) { |
| 588 | printk(KERN_ERR "TLAN: No IO mappings available\n"); |
| 589 | rc = -EIO; |
| 590 | goto err_out_free_dev; |
| 591 | } |
| 592 | |
| 593 | dev->base_addr = pci_io_base; |
| 594 | dev->irq = pdev->irq; |
| 595 | priv->adapterRev = pdev->revision; |
| 596 | pci_set_master(pdev); |
| 597 | pci_set_drvdata(pdev, dev); |
| 598 | |
| 599 | } else { /* EISA card */ |
| 600 | /* This is a hack. We need to know which board structure |
| 601 | * is suited for this adapter */ |
| 602 | device_id = inw(ioaddr + EISA_ID2); |
| 603 | priv->is_eisa = 1; |
| 604 | if (device_id == 0x20F1) { |
| 605 | priv->adapter = &board_info[13]; /* NetFlex-3/E */ |
| 606 | priv->adapterRev = 23; /* TLAN 2.3 */ |
| 607 | } else { |
| 608 | priv->adapter = &board_info[14]; |
| 609 | priv->adapterRev = 10; /* TLAN 1.0 */ |
| 610 | } |
| 611 | dev->base_addr = ioaddr; |
| 612 | dev->irq = irq; |
| 613 | } |
| 614 | |
| 615 | /* Kernel parameters */ |
| 616 | if (dev->mem_start) { |
| 617 | priv->aui = dev->mem_start & 0x01; |
| 618 | priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 |
| 619 | : (dev->mem_start & 0x06) >> 1; |
| 620 | priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 |
| 621 | : (dev->mem_start & 0x18) >> 3; |
| 622 | |
| 623 | if (priv->speed == 0x1) { |
| 624 | priv->speed = TLAN_SPEED_10; |
| 625 | } else if (priv->speed == 0x2) { |
| 626 | priv->speed = TLAN_SPEED_100; |
| 627 | } |
| 628 | debug = priv->debug = dev->mem_end; |
| 629 | } else { |
| 630 | priv->aui = aui[boards_found]; |
| 631 | priv->speed = speed[boards_found]; |
| 632 | priv->duplex = duplex[boards_found]; |
| 633 | priv->debug = debug; |
| 634 | } |
| 635 | |
| 636 | /* This will be used when we get an adapter error from |
| 637 | * within our irq handler */ |
| 638 | INIT_WORK(&priv->tlan_tqueue, TLan_tx_timeout_work); |
| 639 | |
| 640 | spin_lock_init(&priv->lock); |
| 641 | |
| 642 | rc = TLan_Init(dev); |
| 643 | if (rc) { |
| 644 | printk(KERN_ERR "TLAN: Could not set up device.\n"); |
| 645 | goto err_out_free_dev; |
| 646 | } |
| 647 | |
| 648 | rc = register_netdev(dev); |
| 649 | if (rc) { |
| 650 | printk(KERN_ERR "TLAN: Could not register device.\n"); |
| 651 | goto err_out_uninit; |
| 652 | } |
| 653 | |
| 654 | |
| 655 | TLanDevicesInstalled++; |
| 656 | boards_found++; |
| 657 | |
| 658 | /* pdev is NULL if this is an EISA device */ |
| 659 | if (pdev) |
| 660 | tlan_have_pci++; |
| 661 | else { |
| 662 | priv->nextDevice = TLan_Eisa_Devices; |
| 663 | TLan_Eisa_Devices = dev; |
| 664 | tlan_have_eisa++; |
| 665 | } |
| 666 | |
| 667 | printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n", |
| 668 | dev->name, |
| 669 | (int) dev->irq, |
| 670 | (int) dev->base_addr, |
| 671 | priv->adapter->deviceLabel, |
| 672 | priv->adapterRev); |
| 673 | return 0; |
| 674 | |
| 675 | err_out_uninit: |
| 676 | pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, |
| 677 | priv->dmaStorageDMA ); |
| 678 | err_out_free_dev: |
| 679 | free_netdev(dev); |
| 680 | err_out_regions: |
| 681 | #ifdef CONFIG_PCI |
| 682 | if (pdev) |
| 683 | pci_release_regions(pdev); |
| 684 | #endif |
| 685 | err_out: |
| 686 | if (pdev) |
| 687 | pci_disable_device(pdev); |
| 688 | return rc; |
| 689 | } |
| 690 | |
| 691 | |
| 692 | static void TLan_Eisa_Cleanup(void) |
| 693 | { |
| 694 | struct net_device *dev; |
| 695 | TLanPrivateInfo *priv; |
| 696 | |
| 697 | while( tlan_have_eisa ) { |
| 698 | dev = TLan_Eisa_Devices; |
| 699 | priv = netdev_priv(dev); |
| 700 | if (priv->dmaStorage) { |
| 701 | pci_free_consistent(priv->pciDev, priv->dmaSize, |
| 702 | priv->dmaStorage, priv->dmaStorageDMA ); |
| 703 | } |
| 704 | release_region( dev->base_addr, 0x10); |
| 705 | unregister_netdev( dev ); |
| 706 | TLan_Eisa_Devices = priv->nextDevice; |
| 707 | free_netdev( dev ); |
| 708 | tlan_have_eisa--; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | |
| 713 | static void __exit tlan_exit(void) |
| 714 | { |
| 715 | pci_unregister_driver(&tlan_driver); |
| 716 | |
| 717 | if (tlan_have_eisa) |
| 718 | TLan_Eisa_Cleanup(); |
| 719 | |
| 720 | } |
| 721 | |
| 722 | |
| 723 | /* Module loading/unloading */ |
| 724 | module_init(tlan_probe); |
| 725 | module_exit(tlan_exit); |
| 726 | |
| 727 | |
| 728 | |
| 729 | /************************************************************** |
| 730 | * TLan_EisaProbe |
| 731 | * |
| 732 | * Returns: 0 on success, 1 otherwise |
| 733 | * |
| 734 | * Parms: None |
| 735 | * |
| 736 | * |
| 737 | * This functions probes for EISA devices and calls |
| 738 | * TLan_probe1 when one is found. |
| 739 | * |
| 740 | *************************************************************/ |
| 741 | |
| 742 | static void __init TLan_EisaProbe (void) |
| 743 | { |
| 744 | long ioaddr; |
| 745 | int rc = -ENODEV; |
| 746 | int irq; |
| 747 | u16 device_id; |
| 748 | |
| 749 | if (!EISA_bus) { |
| 750 | TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n"); |
| 751 | return; |
| 752 | } |
| 753 | |
| 754 | /* Loop through all slots of the EISA bus */ |
| 755 | for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { |
| 756 | |
| 757 | TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", |
| 758 | (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID)); |
| 759 | TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", |
| 760 | (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2)); |
| 761 | |
| 762 | |
| 763 | TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ", |
| 764 | (int) ioaddr); |
| 765 | if (request_region(ioaddr, 0x10, TLanSignature) == NULL) |
| 766 | goto out; |
| 767 | |
| 768 | if (inw(ioaddr + EISA_ID) != 0x110E) { |
| 769 | release_region(ioaddr, 0x10); |
| 770 | goto out; |
| 771 | } |
| 772 | |
| 773 | device_id = inw(ioaddr + EISA_ID2); |
| 774 | if (device_id != 0x20F1 && device_id != 0x40F1) { |
| 775 | release_region (ioaddr, 0x10); |
| 776 | goto out; |
| 777 | } |
| 778 | |
| 779 | if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */ |
| 780 | release_region (ioaddr, 0x10); |
| 781 | goto out2; |
| 782 | } |
| 783 | |
| 784 | if (debug == 0x10) |
| 785 | printk("Found one\n"); |
| 786 | |
| 787 | |
| 788 | /* Get irq from board */ |
| 789 | switch (inb(ioaddr + 0xCC0)) { |
| 790 | case(0x10): |
| 791 | irq=5; |
| 792 | break; |
| 793 | case(0x20): |
| 794 | irq=9; |
| 795 | break; |
| 796 | case(0x40): |
| 797 | irq=10; |
| 798 | break; |
| 799 | case(0x80): |
| 800 | irq=11; |
| 801 | break; |
| 802 | default: |
| 803 | goto out; |
| 804 | } |
| 805 | |
| 806 | |
| 807 | /* Setup the newly found eisa adapter */ |
| 808 | rc = TLan_probe1( NULL, ioaddr, irq, |
| 809 | 12, NULL); |
| 810 | continue; |
| 811 | |
| 812 | out: |
| 813 | if (debug == 0x10) |
| 814 | printk("None found\n"); |
| 815 | continue; |
| 816 | |
| 817 | out2: if (debug == 0x10) |
| 818 | printk("Card found but it is not enabled, skipping\n"); |
| 819 | continue; |
| 820 | |
| 821 | } |
| 822 | |
| 823 | } /* TLan_EisaProbe */ |
| 824 | |
| 825 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 826 | static void TLan_Poll(struct net_device *dev) |
| 827 | { |
| 828 | disable_irq(dev->irq); |
| 829 | TLan_HandleInterrupt(dev->irq, dev); |
| 830 | enable_irq(dev->irq); |
| 831 | } |
| 832 | #endif |
| 833 | |
| 834 | static const struct net_device_ops TLan_netdev_ops = { |
| 835 | .ndo_open = TLan_Open, |
| 836 | .ndo_stop = TLan_Close, |
| 837 | .ndo_start_xmit = TLan_StartTx, |
| 838 | .ndo_tx_timeout = TLan_tx_timeout, |
| 839 | .ndo_get_stats = TLan_GetStats, |
| 840 | .ndo_set_multicast_list = TLan_SetMulticastList, |
| 841 | .ndo_do_ioctl = TLan_ioctl, |
| 842 | .ndo_change_mtu = eth_change_mtu, |
| 843 | .ndo_set_mac_address = eth_mac_addr, |
| 844 | .ndo_validate_addr = eth_validate_addr, |
| 845 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 846 | .ndo_poll_controller = TLan_Poll, |
| 847 | #endif |
| 848 | }; |
| 849 | |
| 850 | |
| 851 | |
| 852 | /*************************************************************** |
| 853 | * TLan_Init |
| 854 | * |
| 855 | * Returns: |
| 856 | * 0 on success, error code otherwise. |
| 857 | * Parms: |
| 858 | * dev The structure of the device to be |
| 859 | * init'ed. |
| 860 | * |
| 861 | * This function completes the initialization of the |
| 862 | * device structure and driver. It reserves the IO |
| 863 | * addresses, allocates memory for the lists and bounce |
| 864 | * buffers, retrieves the MAC address from the eeprom |
| 865 | * and assignes the device's methods. |
| 866 | * |
| 867 | **************************************************************/ |
| 868 | |
| 869 | static int TLan_Init( struct net_device *dev ) |
| 870 | { |
| 871 | int dma_size; |
| 872 | int err; |
| 873 | int i; |
| 874 | TLanPrivateInfo *priv; |
| 875 | |
| 876 | priv = netdev_priv(dev); |
| 877 | |
| 878 | dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) |
| 879 | * ( sizeof(TLanList) ); |
| 880 | priv->dmaStorage = pci_alloc_consistent(priv->pciDev, |
| 881 | dma_size, &priv->dmaStorageDMA); |
| 882 | priv->dmaSize = dma_size; |
| 883 | |
| 884 | if ( priv->dmaStorage == NULL ) { |
| 885 | printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n", |
| 886 | dev->name ); |
| 887 | return -ENOMEM; |
| 888 | } |
| 889 | memset( priv->dmaStorage, 0, dma_size ); |
| 890 | priv->rxList = (TLanList *) ALIGN((unsigned long)priv->dmaStorage, 8); |
| 891 | priv->rxListDMA = ALIGN(priv->dmaStorageDMA, 8); |
| 892 | priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; |
| 893 | priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; |
| 894 | |
| 895 | err = 0; |
| 896 | for ( i = 0; i < 6 ; i++ ) |
| 897 | err |= TLan_EeReadByte( dev, |
| 898 | (u8) priv->adapter->addrOfs + i, |
| 899 | (u8 *) &dev->dev_addr[i] ); |
| 900 | if ( err ) { |
| 901 | printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n", |
| 902 | dev->name, |
| 903 | err ); |
| 904 | } |
| 905 | dev->addr_len = 6; |
| 906 | |
| 907 | netif_carrier_off(dev); |
| 908 | |
| 909 | /* Device methods */ |
| 910 | dev->netdev_ops = &TLan_netdev_ops; |
| 911 | dev->watchdog_timeo = TX_TIMEOUT; |
| 912 | |
| 913 | return 0; |
| 914 | |
| 915 | } /* TLan_Init */ |
| 916 | |
| 917 | |
| 918 | |
| 919 | |
| 920 | /*************************************************************** |
| 921 | * TLan_Open |
| 922 | * |
| 923 | * Returns: |
| 924 | * 0 on success, error code otherwise. |
| 925 | * Parms: |
| 926 | * dev Structure of device to be opened. |
| 927 | * |
| 928 | * This routine puts the driver and TLAN adapter in a |
| 929 | * state where it is ready to send and receive packets. |
| 930 | * It allocates the IRQ, resets and brings the adapter |
| 931 | * out of reset, and allows interrupts. It also delays |
| 932 | * the startup for autonegotiation or sends a Rx GO |
| 933 | * command to the adapter, as appropriate. |
| 934 | * |
| 935 | **************************************************************/ |
| 936 | |
| 937 | static int TLan_Open( struct net_device *dev ) |
| 938 | { |
| 939 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 940 | int err; |
| 941 | |
| 942 | priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION ); |
| 943 | err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED, |
| 944 | dev->name, dev ); |
| 945 | |
| 946 | if ( err ) { |
| 947 | pr_err("TLAN: Cannot open %s because IRQ %d is already in use.\n", |
| 948 | dev->name, dev->irq ); |
| 949 | return err; |
| 950 | } |
| 951 | |
| 952 | init_timer(&priv->timer); |
| 953 | netif_start_queue(dev); |
| 954 | |
| 955 | /* NOTE: It might not be necessary to read the stats before a |
| 956 | reset if you don't care what the values are. |
| 957 | */ |
| 958 | TLan_ResetLists( dev ); |
| 959 | TLan_ReadAndClearStats( dev, TLAN_IGNORE ); |
| 960 | TLan_ResetAdapter( dev ); |
| 961 | |
| 962 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", |
| 963 | dev->name, priv->tlanRev ); |
| 964 | |
| 965 | return 0; |
| 966 | |
| 967 | } /* TLan_Open */ |
| 968 | |
| 969 | |
| 970 | |
| 971 | /************************************************************** |
| 972 | * TLan_ioctl |
| 973 | * |
| 974 | * Returns: |
| 975 | * 0 on success, error code otherwise |
| 976 | * Params: |
| 977 | * dev structure of device to receive ioctl. |
| 978 | * |
| 979 | * rq ifreq structure to hold userspace data. |
| 980 | * |
| 981 | * cmd ioctl command. |
| 982 | * |
| 983 | * |
| 984 | *************************************************************/ |
| 985 | |
| 986 | static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 987 | { |
| 988 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 989 | struct mii_ioctl_data *data = if_mii(rq); |
| 990 | u32 phy = priv->phy[priv->phyNum]; |
| 991 | |
| 992 | if (!priv->phyOnline) |
| 993 | return -EAGAIN; |
| 994 | |
| 995 | switch(cmd) { |
| 996 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ |
| 997 | data->phy_id = phy; |
| 998 | |
| 999 | |
| 1000 | case SIOCGMIIREG: /* Read MII PHY register. */ |
| 1001 | TLan_MiiReadReg(dev, data->phy_id & 0x1f, |
| 1002 | data->reg_num & 0x1f, &data->val_out); |
| 1003 | return 0; |
| 1004 | |
| 1005 | |
| 1006 | case SIOCSMIIREG: /* Write MII PHY register. */ |
| 1007 | TLan_MiiWriteReg(dev, data->phy_id & 0x1f, |
| 1008 | data->reg_num & 0x1f, data->val_in); |
| 1009 | return 0; |
| 1010 | default: |
| 1011 | return -EOPNOTSUPP; |
| 1012 | } |
| 1013 | } /* tlan_ioctl */ |
| 1014 | |
| 1015 | |
| 1016 | /*************************************************************** |
| 1017 | * TLan_tx_timeout |
| 1018 | * |
| 1019 | * Returns: nothing |
| 1020 | * |
| 1021 | * Params: |
| 1022 | * dev structure of device which timed out |
| 1023 | * during transmit. |
| 1024 | * |
| 1025 | **************************************************************/ |
| 1026 | |
| 1027 | static void TLan_tx_timeout(struct net_device *dev) |
| 1028 | { |
| 1029 | |
| 1030 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name); |
| 1031 | |
| 1032 | /* Ok so we timed out, lets see what we can do about it...*/ |
| 1033 | TLan_FreeLists( dev ); |
| 1034 | TLan_ResetLists( dev ); |
| 1035 | TLan_ReadAndClearStats( dev, TLAN_IGNORE ); |
| 1036 | TLan_ResetAdapter( dev ); |
| 1037 | dev->trans_start = jiffies; |
| 1038 | netif_wake_queue( dev ); |
| 1039 | |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | /*************************************************************** |
| 1044 | * TLan_tx_timeout_work |
| 1045 | * |
| 1046 | * Returns: nothing |
| 1047 | * |
| 1048 | * Params: |
| 1049 | * work work item of device which timed out |
| 1050 | * |
| 1051 | **************************************************************/ |
| 1052 | |
| 1053 | static void TLan_tx_timeout_work(struct work_struct *work) |
| 1054 | { |
| 1055 | TLanPrivateInfo *priv = |
| 1056 | container_of(work, TLanPrivateInfo, tlan_tqueue); |
| 1057 | |
| 1058 | TLan_tx_timeout(priv->dev); |
| 1059 | } |
| 1060 | |
| 1061 | |
| 1062 | |
| 1063 | /*************************************************************** |
| 1064 | * TLan_StartTx |
| 1065 | * |
| 1066 | * Returns: |
| 1067 | * 0 on success, non-zero on failure. |
| 1068 | * Parms: |
| 1069 | * skb A pointer to the sk_buff containing the |
| 1070 | * frame to be sent. |
| 1071 | * dev The device to send the data on. |
| 1072 | * |
| 1073 | * This function adds a frame to the Tx list to be sent |
| 1074 | * ASAP. First it verifies that the adapter is ready and |
| 1075 | * there is room in the queue. Then it sets up the next |
| 1076 | * available list, copies the frame to the corresponding |
| 1077 | * buffer. If the adapter Tx channel is idle, it gives |
| 1078 | * the adapter a Tx Go command on the list, otherwise it |
| 1079 | * sets the forward address of the previous list to point |
| 1080 | * to this one. Then it frees the sk_buff. |
| 1081 | * |
| 1082 | **************************************************************/ |
| 1083 | |
| 1084 | static netdev_tx_t TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) |
| 1085 | { |
| 1086 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1087 | dma_addr_t tail_list_phys; |
| 1088 | TLanList *tail_list; |
| 1089 | unsigned long flags; |
| 1090 | unsigned int txlen; |
| 1091 | |
| 1092 | if ( ! priv->phyOnline ) { |
| 1093 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", |
| 1094 | dev->name ); |
| 1095 | dev_kfree_skb_any(skb); |
| 1096 | return NETDEV_TX_OK; |
| 1097 | } |
| 1098 | |
| 1099 | if (skb_padto(skb, TLAN_MIN_FRAME_SIZE)) |
| 1100 | return NETDEV_TX_OK; |
| 1101 | txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE); |
| 1102 | |
| 1103 | tail_list = priv->txList + priv->txTail; |
| 1104 | tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail; |
| 1105 | |
| 1106 | if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) { |
| 1107 | TLAN_DBG( TLAN_DEBUG_TX, |
| 1108 | "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", |
| 1109 | dev->name, priv->txHead, priv->txTail ); |
| 1110 | netif_stop_queue(dev); |
| 1111 | priv->txBusyCount++; |
| 1112 | return NETDEV_TX_BUSY; |
| 1113 | } |
| 1114 | |
| 1115 | tail_list->forward = 0; |
| 1116 | |
| 1117 | tail_list->buffer[0].address = pci_map_single(priv->pciDev, |
| 1118 | skb->data, txlen, |
| 1119 | PCI_DMA_TODEVICE); |
| 1120 | TLan_StoreSKB(tail_list, skb); |
| 1121 | |
| 1122 | tail_list->frameSize = (u16) txlen; |
| 1123 | tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen; |
| 1124 | tail_list->buffer[1].count = 0; |
| 1125 | tail_list->buffer[1].address = 0; |
| 1126 | |
| 1127 | spin_lock_irqsave(&priv->lock, flags); |
| 1128 | tail_list->cStat = TLAN_CSTAT_READY; |
| 1129 | if ( ! priv->txInProgress ) { |
| 1130 | priv->txInProgress = 1; |
| 1131 | TLAN_DBG( TLAN_DEBUG_TX, |
| 1132 | "TRANSMIT: Starting TX on buffer %d\n", priv->txTail ); |
| 1133 | outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| 1134 | outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD ); |
| 1135 | } else { |
| 1136 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n", |
| 1137 | priv->txTail ); |
| 1138 | if ( priv->txTail == 0 ) { |
| 1139 | ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward |
| 1140 | = tail_list_phys; |
| 1141 | } else { |
| 1142 | ( priv->txList + ( priv->txTail - 1 ) )->forward |
| 1143 | = tail_list_phys; |
| 1144 | } |
| 1145 | } |
| 1146 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1147 | |
| 1148 | CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS ); |
| 1149 | |
| 1150 | dev->trans_start = jiffies; |
| 1151 | return NETDEV_TX_OK; |
| 1152 | |
| 1153 | } /* TLan_StartTx */ |
| 1154 | |
| 1155 | |
| 1156 | |
| 1157 | |
| 1158 | /*************************************************************** |
| 1159 | * TLan_HandleInterrupt |
| 1160 | * |
| 1161 | * Returns: |
| 1162 | * Nothing |
| 1163 | * Parms: |
| 1164 | * irq The line on which the interrupt |
| 1165 | * occurred. |
| 1166 | * dev_id A pointer to the device assigned to |
| 1167 | * this irq line. |
| 1168 | * |
| 1169 | * This function handles an interrupt generated by its |
| 1170 | * assigned TLAN adapter. The function deactivates |
| 1171 | * interrupts on its adapter, records the type of |
| 1172 | * interrupt, executes the appropriate subhandler, and |
| 1173 | * acknowdges the interrupt to the adapter (thus |
| 1174 | * re-enabling adapter interrupts. |
| 1175 | * |
| 1176 | **************************************************************/ |
| 1177 | |
| 1178 | static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id) |
| 1179 | { |
| 1180 | struct net_device *dev = dev_id; |
| 1181 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1182 | u16 host_int; |
| 1183 | u16 type; |
| 1184 | |
| 1185 | spin_lock(&priv->lock); |
| 1186 | |
| 1187 | host_int = inw( dev->base_addr + TLAN_HOST_INT ); |
| 1188 | type = ( host_int & TLAN_HI_IT_MASK ) >> 2; |
| 1189 | if ( type ) { |
| 1190 | u32 ack; |
| 1191 | u32 host_cmd; |
| 1192 | |
| 1193 | outw( host_int, dev->base_addr + TLAN_HOST_INT ); |
| 1194 | ack = TLanIntVector[type]( dev, host_int ); |
| 1195 | |
| 1196 | if ( ack ) { |
| 1197 | host_cmd = TLAN_HC_ACK | ack | ( type << 18 ); |
| 1198 | outl( host_cmd, dev->base_addr + TLAN_HOST_CMD ); |
| 1199 | } |
| 1200 | } |
| 1201 | |
| 1202 | spin_unlock(&priv->lock); |
| 1203 | |
| 1204 | return IRQ_RETVAL(type); |
| 1205 | } /* TLan_HandleInterrupts */ |
| 1206 | |
| 1207 | |
| 1208 | |
| 1209 | |
| 1210 | /*************************************************************** |
| 1211 | * TLan_Close |
| 1212 | * |
| 1213 | * Returns: |
| 1214 | * An error code. |
| 1215 | * Parms: |
| 1216 | * dev The device structure of the device to |
| 1217 | * close. |
| 1218 | * |
| 1219 | * This function shuts down the adapter. It records any |
| 1220 | * stats, puts the adapter into reset state, deactivates |
| 1221 | * its time as needed, and frees the irq it is using. |
| 1222 | * |
| 1223 | **************************************************************/ |
| 1224 | |
| 1225 | static int TLan_Close(struct net_device *dev) |
| 1226 | { |
| 1227 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1228 | |
| 1229 | netif_stop_queue(dev); |
| 1230 | priv->neg_be_verbose = 0; |
| 1231 | |
| 1232 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| 1233 | outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); |
| 1234 | if ( priv->timer.function != NULL ) { |
| 1235 | del_timer_sync( &priv->timer ); |
| 1236 | priv->timer.function = NULL; |
| 1237 | } |
| 1238 | |
| 1239 | free_irq( dev->irq, dev ); |
| 1240 | TLan_FreeLists( dev ); |
| 1241 | TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name ); |
| 1242 | |
| 1243 | return 0; |
| 1244 | |
| 1245 | } /* TLan_Close */ |
| 1246 | |
| 1247 | |
| 1248 | |
| 1249 | |
| 1250 | /*************************************************************** |
| 1251 | * TLan_GetStats |
| 1252 | * |
| 1253 | * Returns: |
| 1254 | * A pointer to the device's statistics structure. |
| 1255 | * Parms: |
| 1256 | * dev The device structure to return the |
| 1257 | * stats for. |
| 1258 | * |
| 1259 | * This function updates the devices statistics by reading |
| 1260 | * the TLAN chip's onboard registers. Then it returns the |
| 1261 | * address of the statistics structure. |
| 1262 | * |
| 1263 | **************************************************************/ |
| 1264 | |
| 1265 | static struct net_device_stats *TLan_GetStats( struct net_device *dev ) |
| 1266 | { |
| 1267 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1268 | int i; |
| 1269 | |
| 1270 | /* Should only read stats if open ? */ |
| 1271 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| 1272 | |
| 1273 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, |
| 1274 | priv->rxEocCount ); |
| 1275 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, |
| 1276 | priv->txBusyCount ); |
| 1277 | if ( debug & TLAN_DEBUG_GNRL ) { |
| 1278 | TLan_PrintDio( dev->base_addr ); |
| 1279 | TLan_PhyPrint( dev ); |
| 1280 | } |
| 1281 | if ( debug & TLAN_DEBUG_LIST ) { |
| 1282 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) |
| 1283 | TLan_PrintList( priv->rxList + i, "RX", i ); |
| 1284 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) |
| 1285 | TLan_PrintList( priv->txList + i, "TX", i ); |
| 1286 | } |
| 1287 | |
| 1288 | return &dev->stats; |
| 1289 | |
| 1290 | } /* TLan_GetStats */ |
| 1291 | |
| 1292 | |
| 1293 | |
| 1294 | |
| 1295 | /*************************************************************** |
| 1296 | * TLan_SetMulticastList |
| 1297 | * |
| 1298 | * Returns: |
| 1299 | * Nothing |
| 1300 | * Parms: |
| 1301 | * dev The device structure to set the |
| 1302 | * multicast list for. |
| 1303 | * |
| 1304 | * This function sets the TLAN adaptor to various receive |
| 1305 | * modes. If the IFF_PROMISC flag is set, promiscuous |
| 1306 | * mode is acitviated. Otherwise, promiscuous mode is |
| 1307 | * turned off. If the IFF_ALLMULTI flag is set, then |
| 1308 | * the hash table is set to receive all group addresses. |
| 1309 | * Otherwise, the first three multicast addresses are |
| 1310 | * stored in AREG_1-3, and the rest are selected via the |
| 1311 | * hash table, as necessary. |
| 1312 | * |
| 1313 | **************************************************************/ |
| 1314 | |
| 1315 | static void TLan_SetMulticastList( struct net_device *dev ) |
| 1316 | { |
| 1317 | struct dev_mc_list *dmi = dev->mc_list; |
| 1318 | u32 hash1 = 0; |
| 1319 | u32 hash2 = 0; |
| 1320 | int i; |
| 1321 | u32 offset; |
| 1322 | u8 tmp; |
| 1323 | |
| 1324 | if ( dev->flags & IFF_PROMISC ) { |
| 1325 | tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); |
| 1326 | TLan_DioWrite8( dev->base_addr, |
| 1327 | TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF ); |
| 1328 | } else { |
| 1329 | tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); |
| 1330 | TLan_DioWrite8( dev->base_addr, |
| 1331 | TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF ); |
| 1332 | if ( dev->flags & IFF_ALLMULTI ) { |
| 1333 | for ( i = 0; i < 3; i++ ) |
| 1334 | TLan_SetMac( dev, i + 1, NULL ); |
| 1335 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF ); |
| 1336 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF ); |
| 1337 | } else { |
| 1338 | for ( i = 0; i < dev->mc_count; i++ ) { |
| 1339 | if ( i < 3 ) { |
| 1340 | TLan_SetMac( dev, i + 1, |
| 1341 | (char *) &dmi->dmi_addr ); |
| 1342 | } else { |
| 1343 | offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr ); |
| 1344 | if ( offset < 32 ) |
| 1345 | hash1 |= ( 1 << offset ); |
| 1346 | else |
| 1347 | hash2 |= ( 1 << ( offset - 32 ) ); |
| 1348 | } |
| 1349 | dmi = dmi->next; |
| 1350 | } |
| 1351 | for ( ; i < 3; i++ ) |
| 1352 | TLan_SetMac( dev, i + 1, NULL ); |
| 1353 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 ); |
| 1354 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 ); |
| 1355 | } |
| 1356 | } |
| 1357 | |
| 1358 | } /* TLan_SetMulticastList */ |
| 1359 | |
| 1360 | |
| 1361 | |
| 1362 | /***************************************************************************** |
| 1363 | ****************************************************************************** |
| 1364 | |
| 1365 | ThunderLAN Driver Interrupt Vectors and Table |
| 1366 | |
| 1367 | Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN |
| 1368 | Programmer's Guide" for more informations on handling interrupts |
| 1369 | generated by TLAN based adapters. |
| 1370 | |
| 1371 | ****************************************************************************** |
| 1372 | *****************************************************************************/ |
| 1373 | |
| 1374 | |
| 1375 | |
| 1376 | |
| 1377 | /*************************************************************** |
| 1378 | * TLan_HandleTxEOF |
| 1379 | * |
| 1380 | * Returns: |
| 1381 | * 1 |
| 1382 | * Parms: |
| 1383 | * dev Device assigned the IRQ that was |
| 1384 | * raised. |
| 1385 | * host_int The contents of the HOST_INT |
| 1386 | * port. |
| 1387 | * |
| 1388 | * This function handles Tx EOF interrupts which are raised |
| 1389 | * by the adapter when it has completed sending the |
| 1390 | * contents of a buffer. If detemines which list/buffer |
| 1391 | * was completed and resets it. If the buffer was the last |
| 1392 | * in the channel (EOC), then the function checks to see if |
| 1393 | * another buffer is ready to send, and if so, sends a Tx |
| 1394 | * Go command. Finally, the driver activates/continues the |
| 1395 | * activity LED. |
| 1396 | * |
| 1397 | **************************************************************/ |
| 1398 | |
| 1399 | static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int ) |
| 1400 | { |
| 1401 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1402 | int eoc = 0; |
| 1403 | TLanList *head_list; |
| 1404 | dma_addr_t head_list_phys; |
| 1405 | u32 ack = 0; |
| 1406 | u16 tmpCStat; |
| 1407 | |
| 1408 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", |
| 1409 | priv->txHead, priv->txTail ); |
| 1410 | head_list = priv->txList + priv->txHead; |
| 1411 | |
| 1412 | while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { |
| 1413 | struct sk_buff *skb = TLan_GetSKB(head_list); |
| 1414 | |
| 1415 | ack++; |
| 1416 | pci_unmap_single(priv->pciDev, head_list->buffer[0].address, |
| 1417 | max(skb->len, |
| 1418 | (unsigned int)TLAN_MIN_FRAME_SIZE), |
| 1419 | PCI_DMA_TODEVICE); |
| 1420 | dev_kfree_skb_any(skb); |
| 1421 | head_list->buffer[8].address = 0; |
| 1422 | head_list->buffer[9].address = 0; |
| 1423 | |
| 1424 | if ( tmpCStat & TLAN_CSTAT_EOC ) |
| 1425 | eoc = 1; |
| 1426 | |
| 1427 | dev->stats.tx_bytes += head_list->frameSize; |
| 1428 | |
| 1429 | head_list->cStat = TLAN_CSTAT_UNUSED; |
| 1430 | netif_start_queue(dev); |
| 1431 | CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS ); |
| 1432 | head_list = priv->txList + priv->txHead; |
| 1433 | } |
| 1434 | |
| 1435 | if (!ack) |
| 1436 | printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n"); |
| 1437 | |
| 1438 | if ( eoc ) { |
| 1439 | TLAN_DBG( TLAN_DEBUG_TX, |
| 1440 | "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", |
| 1441 | priv->txHead, priv->txTail ); |
| 1442 | head_list = priv->txList + priv->txHead; |
| 1443 | head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; |
| 1444 | if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { |
| 1445 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| 1446 | ack |= TLAN_HC_GO; |
| 1447 | } else { |
| 1448 | priv->txInProgress = 0; |
| 1449 | } |
| 1450 | } |
| 1451 | |
| 1452 | if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { |
| 1453 | TLan_DioWrite8( dev->base_addr, |
| 1454 | TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); |
| 1455 | if ( priv->timer.function == NULL ) { |
| 1456 | priv->timer.function = &TLan_Timer; |
| 1457 | priv->timer.data = (unsigned long) dev; |
| 1458 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; |
| 1459 | priv->timerSetAt = jiffies; |
| 1460 | priv->timerType = TLAN_TIMER_ACTIVITY; |
| 1461 | add_timer(&priv->timer); |
| 1462 | } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { |
| 1463 | priv->timerSetAt = jiffies; |
| 1464 | } |
| 1465 | } |
| 1466 | |
| 1467 | return ack; |
| 1468 | |
| 1469 | } /* TLan_HandleTxEOF */ |
| 1470 | |
| 1471 | |
| 1472 | |
| 1473 | |
| 1474 | /*************************************************************** |
| 1475 | * TLan_HandleStatOverflow |
| 1476 | * |
| 1477 | * Returns: |
| 1478 | * 1 |
| 1479 | * Parms: |
| 1480 | * dev Device assigned the IRQ that was |
| 1481 | * raised. |
| 1482 | * host_int The contents of the HOST_INT |
| 1483 | * port. |
| 1484 | * |
| 1485 | * This function handles the Statistics Overflow interrupt |
| 1486 | * which means that one or more of the TLAN statistics |
| 1487 | * registers has reached 1/2 capacity and needs to be read. |
| 1488 | * |
| 1489 | **************************************************************/ |
| 1490 | |
| 1491 | static u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int ) |
| 1492 | { |
| 1493 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| 1494 | |
| 1495 | return 1; |
| 1496 | |
| 1497 | } /* TLan_HandleStatOverflow */ |
| 1498 | |
| 1499 | |
| 1500 | |
| 1501 | |
| 1502 | /*************************************************************** |
| 1503 | * TLan_HandleRxEOF |
| 1504 | * |
| 1505 | * Returns: |
| 1506 | * 1 |
| 1507 | * Parms: |
| 1508 | * dev Device assigned the IRQ that was |
| 1509 | * raised. |
| 1510 | * host_int The contents of the HOST_INT |
| 1511 | * port. |
| 1512 | * |
| 1513 | * This function handles the Rx EOF interrupt which |
| 1514 | * indicates a frame has been received by the adapter from |
| 1515 | * the net and the frame has been transferred to memory. |
| 1516 | * The function determines the bounce buffer the frame has |
| 1517 | * been loaded into, creates a new sk_buff big enough to |
| 1518 | * hold the frame, and sends it to protocol stack. It |
| 1519 | * then resets the used buffer and appends it to the end |
| 1520 | * of the list. If the frame was the last in the Rx |
| 1521 | * channel (EOC), the function restarts the receive channel |
| 1522 | * by sending an Rx Go command to the adapter. Then it |
| 1523 | * activates/continues the activity LED. |
| 1524 | * |
| 1525 | **************************************************************/ |
| 1526 | |
| 1527 | static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) |
| 1528 | { |
| 1529 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1530 | u32 ack = 0; |
| 1531 | int eoc = 0; |
| 1532 | TLanList *head_list; |
| 1533 | struct sk_buff *skb; |
| 1534 | TLanList *tail_list; |
| 1535 | u16 tmpCStat; |
| 1536 | dma_addr_t head_list_phys; |
| 1537 | |
| 1538 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", |
| 1539 | priv->rxHead, priv->rxTail ); |
| 1540 | head_list = priv->rxList + priv->rxHead; |
| 1541 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| 1542 | |
| 1543 | while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { |
| 1544 | dma_addr_t frameDma = head_list->buffer[0].address; |
| 1545 | u32 frameSize = head_list->frameSize; |
| 1546 | struct sk_buff *new_skb; |
| 1547 | |
| 1548 | ack++; |
| 1549 | if (tmpCStat & TLAN_CSTAT_EOC) |
| 1550 | eoc = 1; |
| 1551 | |
| 1552 | new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); |
| 1553 | if ( !new_skb ) |
| 1554 | goto drop_and_reuse; |
| 1555 | |
| 1556 | skb = TLan_GetSKB(head_list); |
| 1557 | pci_unmap_single(priv->pciDev, frameDma, |
| 1558 | TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
| 1559 | skb_put( skb, frameSize ); |
| 1560 | |
| 1561 | dev->stats.rx_bytes += frameSize; |
| 1562 | |
| 1563 | skb->protocol = eth_type_trans( skb, dev ); |
| 1564 | netif_rx( skb ); |
| 1565 | |
| 1566 | skb_reserve( new_skb, NET_IP_ALIGN ); |
| 1567 | head_list->buffer[0].address = pci_map_single(priv->pciDev, |
| 1568 | new_skb->data, |
| 1569 | TLAN_MAX_FRAME_SIZE, |
| 1570 | PCI_DMA_FROMDEVICE); |
| 1571 | |
| 1572 | TLan_StoreSKB(head_list, new_skb); |
| 1573 | drop_and_reuse: |
| 1574 | head_list->forward = 0; |
| 1575 | head_list->cStat = 0; |
| 1576 | tail_list = priv->rxList + priv->rxTail; |
| 1577 | tail_list->forward = head_list_phys; |
| 1578 | |
| 1579 | CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS ); |
| 1580 | CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS ); |
| 1581 | head_list = priv->rxList + priv->rxHead; |
| 1582 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| 1583 | } |
| 1584 | |
| 1585 | if (!ack) |
| 1586 | printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n"); |
| 1587 | |
| 1588 | |
| 1589 | if ( eoc ) { |
| 1590 | TLAN_DBG( TLAN_DEBUG_RX, |
| 1591 | "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", |
| 1592 | priv->rxHead, priv->rxTail ); |
| 1593 | head_list = priv->rxList + priv->rxHead; |
| 1594 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| 1595 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| 1596 | ack |= TLAN_HC_GO | TLAN_HC_RT; |
| 1597 | priv->rxEocCount++; |
| 1598 | } |
| 1599 | |
| 1600 | if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { |
| 1601 | TLan_DioWrite8( dev->base_addr, |
| 1602 | TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); |
| 1603 | if ( priv->timer.function == NULL ) { |
| 1604 | priv->timer.function = &TLan_Timer; |
| 1605 | priv->timer.data = (unsigned long) dev; |
| 1606 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; |
| 1607 | priv->timerSetAt = jiffies; |
| 1608 | priv->timerType = TLAN_TIMER_ACTIVITY; |
| 1609 | add_timer(&priv->timer); |
| 1610 | } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { |
| 1611 | priv->timerSetAt = jiffies; |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | return ack; |
| 1616 | |
| 1617 | } /* TLan_HandleRxEOF */ |
| 1618 | |
| 1619 | |
| 1620 | |
| 1621 | |
| 1622 | /*************************************************************** |
| 1623 | * TLan_HandleDummy |
| 1624 | * |
| 1625 | * Returns: |
| 1626 | * 1 |
| 1627 | * Parms: |
| 1628 | * dev Device assigned the IRQ that was |
| 1629 | * raised. |
| 1630 | * host_int The contents of the HOST_INT |
| 1631 | * port. |
| 1632 | * |
| 1633 | * This function handles the Dummy interrupt, which is |
| 1634 | * raised whenever a test interrupt is generated by setting |
| 1635 | * the Req_Int bit of HOST_CMD to 1. |
| 1636 | * |
| 1637 | **************************************************************/ |
| 1638 | |
| 1639 | static u32 TLan_HandleDummy( struct net_device *dev, u16 host_int ) |
| 1640 | { |
| 1641 | printk( "TLAN: Test interrupt on %s.\n", dev->name ); |
| 1642 | return 1; |
| 1643 | |
| 1644 | } /* TLan_HandleDummy */ |
| 1645 | |
| 1646 | |
| 1647 | |
| 1648 | |
| 1649 | /*************************************************************** |
| 1650 | * TLan_HandleTxEOC |
| 1651 | * |
| 1652 | * Returns: |
| 1653 | * 1 |
| 1654 | * Parms: |
| 1655 | * dev Device assigned the IRQ that was |
| 1656 | * raised. |
| 1657 | * host_int The contents of the HOST_INT |
| 1658 | * port. |
| 1659 | * |
| 1660 | * This driver is structured to determine EOC occurrences by |
| 1661 | * reading the CSTAT member of the list structure. Tx EOC |
| 1662 | * interrupts are disabled via the DIO INTDIS register. |
| 1663 | * However, TLAN chips before revision 3.0 didn't have this |
| 1664 | * functionality, so process EOC events if this is the |
| 1665 | * case. |
| 1666 | * |
| 1667 | **************************************************************/ |
| 1668 | |
| 1669 | static u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int ) |
| 1670 | { |
| 1671 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1672 | TLanList *head_list; |
| 1673 | dma_addr_t head_list_phys; |
| 1674 | u32 ack = 1; |
| 1675 | |
| 1676 | host_int = 0; |
| 1677 | if ( priv->tlanRev < 0x30 ) { |
| 1678 | TLAN_DBG( TLAN_DEBUG_TX, |
| 1679 | "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", |
| 1680 | priv->txHead, priv->txTail ); |
| 1681 | head_list = priv->txList + priv->txHead; |
| 1682 | head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; |
| 1683 | if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { |
| 1684 | netif_stop_queue(dev); |
| 1685 | outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| 1686 | ack |= TLAN_HC_GO; |
| 1687 | } else { |
| 1688 | priv->txInProgress = 0; |
| 1689 | } |
| 1690 | } |
| 1691 | |
| 1692 | return ack; |
| 1693 | |
| 1694 | } /* TLan_HandleTxEOC */ |
| 1695 | |
| 1696 | |
| 1697 | |
| 1698 | |
| 1699 | /*************************************************************** |
| 1700 | * TLan_HandleStatusCheck |
| 1701 | * |
| 1702 | * Returns: |
| 1703 | * 0 if Adapter check, 1 if Network Status check. |
| 1704 | * Parms: |
| 1705 | * dev Device assigned the IRQ that was |
| 1706 | * raised. |
| 1707 | * host_int The contents of the HOST_INT |
| 1708 | * port. |
| 1709 | * |
| 1710 | * This function handles Adapter Check/Network Status |
| 1711 | * interrupts generated by the adapter. It checks the |
| 1712 | * vector in the HOST_INT register to determine if it is |
| 1713 | * an Adapter Check interrupt. If so, it resets the |
| 1714 | * adapter. Otherwise it clears the status registers |
| 1715 | * and services the PHY. |
| 1716 | * |
| 1717 | **************************************************************/ |
| 1718 | |
| 1719 | static u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int ) |
| 1720 | { |
| 1721 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1722 | u32 ack; |
| 1723 | u32 error; |
| 1724 | u8 net_sts; |
| 1725 | u32 phy; |
| 1726 | u16 tlphy_ctl; |
| 1727 | u16 tlphy_sts; |
| 1728 | |
| 1729 | ack = 1; |
| 1730 | if ( host_int & TLAN_HI_IV_MASK ) { |
| 1731 | netif_stop_queue( dev ); |
| 1732 | error = inl( dev->base_addr + TLAN_CH_PARM ); |
| 1733 | printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error ); |
| 1734 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| 1735 | outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); |
| 1736 | |
| 1737 | schedule_work(&priv->tlan_tqueue); |
| 1738 | |
| 1739 | netif_wake_queue(dev); |
| 1740 | ack = 0; |
| 1741 | } else { |
| 1742 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name ); |
| 1743 | phy = priv->phy[priv->phyNum]; |
| 1744 | |
| 1745 | net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS ); |
| 1746 | if ( net_sts ) { |
| 1747 | TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts ); |
| 1748 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", |
| 1749 | dev->name, (unsigned) net_sts ); |
| 1750 | } |
| 1751 | if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) { |
| 1752 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts ); |
| 1753 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); |
| 1754 | if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && |
| 1755 | ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { |
| 1756 | tlphy_ctl |= TLAN_TC_SWAPOL; |
| 1757 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); |
| 1758 | } else if ( ( tlphy_sts & TLAN_TS_POLOK ) |
| 1759 | && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { |
| 1760 | tlphy_ctl &= ~TLAN_TC_SWAPOL; |
| 1761 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); |
| 1762 | } |
| 1763 | |
| 1764 | if (debug) { |
| 1765 | TLan_PhyPrint( dev ); |
| 1766 | } |
| 1767 | } |
| 1768 | } |
| 1769 | |
| 1770 | return ack; |
| 1771 | |
| 1772 | } /* TLan_HandleStatusCheck */ |
| 1773 | |
| 1774 | |
| 1775 | |
| 1776 | |
| 1777 | /*************************************************************** |
| 1778 | * TLan_HandleRxEOC |
| 1779 | * |
| 1780 | * Returns: |
| 1781 | * 1 |
| 1782 | * Parms: |
| 1783 | * dev Device assigned the IRQ that was |
| 1784 | * raised. |
| 1785 | * host_int The contents of the HOST_INT |
| 1786 | * port. |
| 1787 | * |
| 1788 | * This driver is structured to determine EOC occurrences by |
| 1789 | * reading the CSTAT member of the list structure. Rx EOC |
| 1790 | * interrupts are disabled via the DIO INTDIS register. |
| 1791 | * However, TLAN chips before revision 3.0 didn't have this |
| 1792 | * CSTAT member or a INTDIS register, so if this chip is |
| 1793 | * pre-3.0, process EOC interrupts normally. |
| 1794 | * |
| 1795 | **************************************************************/ |
| 1796 | |
| 1797 | static u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int ) |
| 1798 | { |
| 1799 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1800 | dma_addr_t head_list_phys; |
| 1801 | u32 ack = 1; |
| 1802 | |
| 1803 | if ( priv->tlanRev < 0x30 ) { |
| 1804 | TLAN_DBG( TLAN_DEBUG_RX, |
| 1805 | "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", |
| 1806 | priv->rxHead, priv->rxTail ); |
| 1807 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| 1808 | outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| 1809 | ack |= TLAN_HC_GO | TLAN_HC_RT; |
| 1810 | priv->rxEocCount++; |
| 1811 | } |
| 1812 | |
| 1813 | return ack; |
| 1814 | |
| 1815 | } /* TLan_HandleRxEOC */ |
| 1816 | |
| 1817 | |
| 1818 | |
| 1819 | |
| 1820 | /***************************************************************************** |
| 1821 | ****************************************************************************** |
| 1822 | |
| 1823 | ThunderLAN Driver Timer Function |
| 1824 | |
| 1825 | ****************************************************************************** |
| 1826 | *****************************************************************************/ |
| 1827 | |
| 1828 | |
| 1829 | /*************************************************************** |
| 1830 | * TLan_Timer |
| 1831 | * |
| 1832 | * Returns: |
| 1833 | * Nothing |
| 1834 | * Parms: |
| 1835 | * data A value given to add timer when |
| 1836 | * add_timer was called. |
| 1837 | * |
| 1838 | * This function handles timed functionality for the |
| 1839 | * TLAN driver. The two current timer uses are for |
| 1840 | * delaying for autonegotionation and driving the ACT LED. |
| 1841 | * - Autonegotiation requires being allowed about |
| 1842 | * 2 1/2 seconds before attempting to transmit a |
| 1843 | * packet. It would be a very bad thing to hang |
| 1844 | * the kernel this long, so the driver doesn't |
| 1845 | * allow transmission 'til after this time, for |
| 1846 | * certain PHYs. It would be much nicer if all |
| 1847 | * PHYs were interrupt-capable like the internal |
| 1848 | * PHY. |
| 1849 | * - The ACT LED, which shows adapter activity, is |
| 1850 | * driven by the driver, and so must be left on |
| 1851 | * for a short period to power up the LED so it |
| 1852 | * can be seen. This delay can be changed by |
| 1853 | * changing the TLAN_TIMER_ACT_DELAY in tlan.h, |
| 1854 | * if desired. 100 ms produces a slightly |
| 1855 | * sluggish response. |
| 1856 | * |
| 1857 | **************************************************************/ |
| 1858 | |
| 1859 | static void TLan_Timer( unsigned long data ) |
| 1860 | { |
| 1861 | struct net_device *dev = (struct net_device *) data; |
| 1862 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1863 | u32 elapsed; |
| 1864 | unsigned long flags = 0; |
| 1865 | |
| 1866 | priv->timer.function = NULL; |
| 1867 | |
| 1868 | switch ( priv->timerType ) { |
| 1869 | #ifdef MONITOR |
| 1870 | case TLAN_TIMER_LINK_BEAT: |
| 1871 | TLan_PhyMonitor( dev ); |
| 1872 | break; |
| 1873 | #endif |
| 1874 | case TLAN_TIMER_PHY_PDOWN: |
| 1875 | TLan_PhyPowerDown( dev ); |
| 1876 | break; |
| 1877 | case TLAN_TIMER_PHY_PUP: |
| 1878 | TLan_PhyPowerUp( dev ); |
| 1879 | break; |
| 1880 | case TLAN_TIMER_PHY_RESET: |
| 1881 | TLan_PhyReset( dev ); |
| 1882 | break; |
| 1883 | case TLAN_TIMER_PHY_START_LINK: |
| 1884 | TLan_PhyStartLink( dev ); |
| 1885 | break; |
| 1886 | case TLAN_TIMER_PHY_FINISH_AN: |
| 1887 | TLan_PhyFinishAutoNeg( dev ); |
| 1888 | break; |
| 1889 | case TLAN_TIMER_FINISH_RESET: |
| 1890 | TLan_FinishReset( dev ); |
| 1891 | break; |
| 1892 | case TLAN_TIMER_ACTIVITY: |
| 1893 | spin_lock_irqsave(&priv->lock, flags); |
| 1894 | if ( priv->timer.function == NULL ) { |
| 1895 | elapsed = jiffies - priv->timerSetAt; |
| 1896 | if ( elapsed >= TLAN_TIMER_ACT_DELAY ) { |
| 1897 | TLan_DioWrite8( dev->base_addr, |
| 1898 | TLAN_LED_REG, TLAN_LED_LINK ); |
| 1899 | } else { |
| 1900 | priv->timer.function = &TLan_Timer; |
| 1901 | priv->timer.expires = priv->timerSetAt |
| 1902 | + TLAN_TIMER_ACT_DELAY; |
| 1903 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1904 | add_timer( &priv->timer ); |
| 1905 | break; |
| 1906 | } |
| 1907 | } |
| 1908 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1909 | break; |
| 1910 | default: |
| 1911 | break; |
| 1912 | } |
| 1913 | |
| 1914 | } /* TLan_Timer */ |
| 1915 | |
| 1916 | |
| 1917 | |
| 1918 | |
| 1919 | /***************************************************************************** |
| 1920 | ****************************************************************************** |
| 1921 | |
| 1922 | ThunderLAN Driver Adapter Related Routines |
| 1923 | |
| 1924 | ****************************************************************************** |
| 1925 | *****************************************************************************/ |
| 1926 | |
| 1927 | |
| 1928 | /*************************************************************** |
| 1929 | * TLan_ResetLists |
| 1930 | * |
| 1931 | * Returns: |
| 1932 | * Nothing |
| 1933 | * Parms: |
| 1934 | * dev The device structure with the list |
| 1935 | * stuctures to be reset. |
| 1936 | * |
| 1937 | * This routine sets the variables associated with managing |
| 1938 | * the TLAN lists to their initial values. |
| 1939 | * |
| 1940 | **************************************************************/ |
| 1941 | |
| 1942 | static void TLan_ResetLists( struct net_device *dev ) |
| 1943 | { |
| 1944 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 1945 | int i; |
| 1946 | TLanList *list; |
| 1947 | dma_addr_t list_phys; |
| 1948 | struct sk_buff *skb; |
| 1949 | |
| 1950 | priv->txHead = 0; |
| 1951 | priv->txTail = 0; |
| 1952 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { |
| 1953 | list = priv->txList + i; |
| 1954 | list->cStat = TLAN_CSTAT_UNUSED; |
| 1955 | list->buffer[0].address = 0; |
| 1956 | list->buffer[2].count = 0; |
| 1957 | list->buffer[2].address = 0; |
| 1958 | list->buffer[8].address = 0; |
| 1959 | list->buffer[9].address = 0; |
| 1960 | } |
| 1961 | |
| 1962 | priv->rxHead = 0; |
| 1963 | priv->rxTail = TLAN_NUM_RX_LISTS - 1; |
| 1964 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { |
| 1965 | list = priv->rxList + i; |
| 1966 | list_phys = priv->rxListDMA + sizeof(TLanList) * i; |
| 1967 | list->cStat = TLAN_CSTAT_READY; |
| 1968 | list->frameSize = TLAN_MAX_FRAME_SIZE; |
| 1969 | list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; |
| 1970 | skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); |
| 1971 | if ( !skb ) { |
| 1972 | pr_err("TLAN: out of memory for received data.\n" ); |
| 1973 | break; |
| 1974 | } |
| 1975 | |
| 1976 | skb_reserve( skb, NET_IP_ALIGN ); |
| 1977 | list->buffer[0].address = pci_map_single(priv->pciDev, |
| 1978 | skb->data, |
| 1979 | TLAN_MAX_FRAME_SIZE, |
| 1980 | PCI_DMA_FROMDEVICE); |
| 1981 | TLan_StoreSKB(list, skb); |
| 1982 | list->buffer[1].count = 0; |
| 1983 | list->buffer[1].address = 0; |
| 1984 | list->forward = list_phys + sizeof(TLanList); |
| 1985 | } |
| 1986 | |
| 1987 | /* in case ran out of memory early, clear bits */ |
| 1988 | while (i < TLAN_NUM_RX_LISTS) { |
| 1989 | TLan_StoreSKB(priv->rxList + i, NULL); |
| 1990 | ++i; |
| 1991 | } |
| 1992 | list->forward = 0; |
| 1993 | |
| 1994 | } /* TLan_ResetLists */ |
| 1995 | |
| 1996 | |
| 1997 | static void TLan_FreeLists( struct net_device *dev ) |
| 1998 | { |
| 1999 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2000 | int i; |
| 2001 | TLanList *list; |
| 2002 | struct sk_buff *skb; |
| 2003 | |
| 2004 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { |
| 2005 | list = priv->txList + i; |
| 2006 | skb = TLan_GetSKB(list); |
| 2007 | if ( skb ) { |
| 2008 | pci_unmap_single( |
| 2009 | priv->pciDev, |
| 2010 | list->buffer[0].address, |
| 2011 | max(skb->len, |
| 2012 | (unsigned int)TLAN_MIN_FRAME_SIZE), |
| 2013 | PCI_DMA_TODEVICE); |
| 2014 | dev_kfree_skb_any( skb ); |
| 2015 | list->buffer[8].address = 0; |
| 2016 | list->buffer[9].address = 0; |
| 2017 | } |
| 2018 | } |
| 2019 | |
| 2020 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { |
| 2021 | list = priv->rxList + i; |
| 2022 | skb = TLan_GetSKB(list); |
| 2023 | if ( skb ) { |
| 2024 | pci_unmap_single(priv->pciDev, |
| 2025 | list->buffer[0].address, |
| 2026 | TLAN_MAX_FRAME_SIZE, |
| 2027 | PCI_DMA_FROMDEVICE); |
| 2028 | dev_kfree_skb_any( skb ); |
| 2029 | list->buffer[8].address = 0; |
| 2030 | list->buffer[9].address = 0; |
| 2031 | } |
| 2032 | } |
| 2033 | } /* TLan_FreeLists */ |
| 2034 | |
| 2035 | |
| 2036 | |
| 2037 | |
| 2038 | /*************************************************************** |
| 2039 | * TLan_PrintDio |
| 2040 | * |
| 2041 | * Returns: |
| 2042 | * Nothing |
| 2043 | * Parms: |
| 2044 | * io_base Base IO port of the device of |
| 2045 | * which to print DIO registers. |
| 2046 | * |
| 2047 | * This function prints out all the internal (DIO) |
| 2048 | * registers of a TLAN chip. |
| 2049 | * |
| 2050 | **************************************************************/ |
| 2051 | |
| 2052 | static void TLan_PrintDio( u16 io_base ) |
| 2053 | { |
| 2054 | u32 data0, data1; |
| 2055 | int i; |
| 2056 | |
| 2057 | printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", |
| 2058 | io_base ); |
| 2059 | printk( "TLAN: Off. +0 +4\n" ); |
| 2060 | for ( i = 0; i < 0x4C; i+= 8 ) { |
| 2061 | data0 = TLan_DioRead32( io_base, i ); |
| 2062 | data1 = TLan_DioRead32( io_base, i + 0x4 ); |
| 2063 | printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 ); |
| 2064 | } |
| 2065 | |
| 2066 | } /* TLan_PrintDio */ |
| 2067 | |
| 2068 | |
| 2069 | |
| 2070 | |
| 2071 | /*************************************************************** |
| 2072 | * TLan_PrintList |
| 2073 | * |
| 2074 | * Returns: |
| 2075 | * Nothing |
| 2076 | * Parms: |
| 2077 | * list A pointer to the TLanList structure to |
| 2078 | * be printed. |
| 2079 | * type A string to designate type of list, |
| 2080 | * "Rx" or "Tx". |
| 2081 | * num The index of the list. |
| 2082 | * |
| 2083 | * This function prints out the contents of the list |
| 2084 | * pointed to by the list parameter. |
| 2085 | * |
| 2086 | **************************************************************/ |
| 2087 | |
| 2088 | static void TLan_PrintList( TLanList *list, char *type, int num) |
| 2089 | { |
| 2090 | int i; |
| 2091 | |
| 2092 | printk( "TLAN: %s List %d at %p\n", type, num, list ); |
| 2093 | printk( "TLAN: Forward = 0x%08x\n", list->forward ); |
| 2094 | printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat ); |
| 2095 | printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize ); |
| 2096 | /* for ( i = 0; i < 10; i++ ) { */ |
| 2097 | for ( i = 0; i < 2; i++ ) { |
| 2098 | printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", |
| 2099 | i, list->buffer[i].count, list->buffer[i].address ); |
| 2100 | } |
| 2101 | |
| 2102 | } /* TLan_PrintList */ |
| 2103 | |
| 2104 | |
| 2105 | |
| 2106 | |
| 2107 | /*************************************************************** |
| 2108 | * TLan_ReadAndClearStats |
| 2109 | * |
| 2110 | * Returns: |
| 2111 | * Nothing |
| 2112 | * Parms: |
| 2113 | * dev Pointer to device structure of adapter |
| 2114 | * to which to read stats. |
| 2115 | * record Flag indicating whether to add |
| 2116 | * |
| 2117 | * This functions reads all the internal status registers |
| 2118 | * of the TLAN chip, which clears them as a side effect. |
| 2119 | * It then either adds the values to the device's status |
| 2120 | * struct, or discards them, depending on whether record |
| 2121 | * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0). |
| 2122 | * |
| 2123 | **************************************************************/ |
| 2124 | |
| 2125 | static void TLan_ReadAndClearStats( struct net_device *dev, int record ) |
| 2126 | { |
| 2127 | u32 tx_good, tx_under; |
| 2128 | u32 rx_good, rx_over; |
| 2129 | u32 def_tx, crc, code; |
| 2130 | u32 multi_col, single_col; |
| 2131 | u32 excess_col, late_col, loss; |
| 2132 | |
| 2133 | outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| 2134 | tx_good = inb( dev->base_addr + TLAN_DIO_DATA ); |
| 2135 | tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| 2136 | tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; |
| 2137 | tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| 2138 | |
| 2139 | outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| 2140 | rx_good = inb( dev->base_addr + TLAN_DIO_DATA ); |
| 2141 | rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| 2142 | rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; |
| 2143 | rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| 2144 | |
| 2145 | outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR ); |
| 2146 | def_tx = inb( dev->base_addr + TLAN_DIO_DATA ); |
| 2147 | def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| 2148 | crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| 2149 | code = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| 2150 | |
| 2151 | outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| 2152 | multi_col = inb( dev->base_addr + TLAN_DIO_DATA ); |
| 2153 | multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| 2154 | single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| 2155 | single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8; |
| 2156 | |
| 2157 | outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| 2158 | excess_col = inb( dev->base_addr + TLAN_DIO_DATA ); |
| 2159 | late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 ); |
| 2160 | loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| 2161 | |
| 2162 | if ( record ) { |
| 2163 | dev->stats.rx_packets += rx_good; |
| 2164 | dev->stats.rx_errors += rx_over + crc + code; |
| 2165 | dev->stats.tx_packets += tx_good; |
| 2166 | dev->stats.tx_errors += tx_under + loss; |
| 2167 | dev->stats.collisions += multi_col + single_col + excess_col + late_col; |
| 2168 | |
| 2169 | dev->stats.rx_over_errors += rx_over; |
| 2170 | dev->stats.rx_crc_errors += crc; |
| 2171 | dev->stats.rx_frame_errors += code; |
| 2172 | |
| 2173 | dev->stats.tx_aborted_errors += tx_under; |
| 2174 | dev->stats.tx_carrier_errors += loss; |
| 2175 | } |
| 2176 | |
| 2177 | } /* TLan_ReadAndClearStats */ |
| 2178 | |
| 2179 | |
| 2180 | |
| 2181 | |
| 2182 | /*************************************************************** |
| 2183 | * TLan_Reset |
| 2184 | * |
| 2185 | * Returns: |
| 2186 | * 0 |
| 2187 | * Parms: |
| 2188 | * dev Pointer to device structure of adapter |
| 2189 | * to be reset. |
| 2190 | * |
| 2191 | * This function resets the adapter and it's physical |
| 2192 | * device. See Chap. 3, pp. 9-10 of the "ThunderLAN |
| 2193 | * Programmer's Guide" for details. The routine tries to |
| 2194 | * implement what is detailed there, though adjustments |
| 2195 | * have been made. |
| 2196 | * |
| 2197 | **************************************************************/ |
| 2198 | |
| 2199 | static void |
| 2200 | TLan_ResetAdapter( struct net_device *dev ) |
| 2201 | { |
| 2202 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2203 | int i; |
| 2204 | u32 addr; |
| 2205 | u32 data; |
| 2206 | u8 data8; |
| 2207 | |
| 2208 | priv->tlanFullDuplex = FALSE; |
| 2209 | priv->phyOnline=0; |
| 2210 | netif_carrier_off(dev); |
| 2211 | |
| 2212 | /* 1. Assert reset bit. */ |
| 2213 | |
| 2214 | data = inl(dev->base_addr + TLAN_HOST_CMD); |
| 2215 | data |= TLAN_HC_AD_RST; |
| 2216 | outl(data, dev->base_addr + TLAN_HOST_CMD); |
| 2217 | |
| 2218 | udelay(1000); |
| 2219 | |
| 2220 | /* 2. Turn off interrupts. ( Probably isn't necessary ) */ |
| 2221 | |
| 2222 | data = inl(dev->base_addr + TLAN_HOST_CMD); |
| 2223 | data |= TLAN_HC_INT_OFF; |
| 2224 | outl(data, dev->base_addr + TLAN_HOST_CMD); |
| 2225 | |
| 2226 | /* 3. Clear AREGs and HASHs. */ |
| 2227 | |
| 2228 | for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) { |
| 2229 | TLan_DioWrite32( dev->base_addr, (u16) i, 0 ); |
| 2230 | } |
| 2231 | |
| 2232 | /* 4. Setup NetConfig register. */ |
| 2233 | |
| 2234 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| 2235 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); |
| 2236 | |
| 2237 | /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */ |
| 2238 | |
| 2239 | outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD ); |
| 2240 | outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD ); |
| 2241 | |
| 2242 | /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */ |
| 2243 | |
| 2244 | outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR ); |
| 2245 | addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 2246 | TLan_SetBit( TLAN_NET_SIO_NMRST, addr ); |
| 2247 | |
| 2248 | /* 7. Setup the remaining registers. */ |
| 2249 | |
| 2250 | if ( priv->tlanRev >= 0x30 ) { |
| 2251 | data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC; |
| 2252 | TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 ); |
| 2253 | } |
| 2254 | TLan_PhyDetect( dev ); |
| 2255 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN; |
| 2256 | |
| 2257 | if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) { |
| 2258 | data |= TLAN_NET_CFG_BIT; |
| 2259 | if ( priv->aui == 1 ) { |
| 2260 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a ); |
| 2261 | } else if ( priv->duplex == TLAN_DUPLEX_FULL ) { |
| 2262 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 ); |
| 2263 | priv->tlanFullDuplex = TRUE; |
| 2264 | } else { |
| 2265 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 ); |
| 2266 | } |
| 2267 | } |
| 2268 | |
| 2269 | if ( priv->phyNum == 0 ) { |
| 2270 | data |= TLAN_NET_CFG_PHY_EN; |
| 2271 | } |
| 2272 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); |
| 2273 | |
| 2274 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| 2275 | TLan_FinishReset( dev ); |
| 2276 | } else { |
| 2277 | TLan_PhyPowerDown( dev ); |
| 2278 | } |
| 2279 | |
| 2280 | } /* TLan_ResetAdapter */ |
| 2281 | |
| 2282 | |
| 2283 | |
| 2284 | |
| 2285 | static void |
| 2286 | TLan_FinishReset( struct net_device *dev ) |
| 2287 | { |
| 2288 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2289 | u8 data; |
| 2290 | u32 phy; |
| 2291 | u8 sio; |
| 2292 | u16 status; |
| 2293 | u16 partner; |
| 2294 | u16 tlphy_ctl; |
| 2295 | u16 tlphy_par; |
| 2296 | u16 tlphy_id1, tlphy_id2; |
| 2297 | int i; |
| 2298 | |
| 2299 | phy = priv->phy[priv->phyNum]; |
| 2300 | |
| 2301 | data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP; |
| 2302 | if ( priv->tlanFullDuplex ) { |
| 2303 | data |= TLAN_NET_CMD_DUPLEX; |
| 2304 | } |
| 2305 | TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data ); |
| 2306 | data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5; |
| 2307 | if ( priv->phyNum == 0 ) { |
| 2308 | data |= TLAN_NET_MASK_MASK7; |
| 2309 | } |
| 2310 | TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data ); |
| 2311 | TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 ); |
| 2312 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 ); |
| 2313 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 ); |
| 2314 | |
| 2315 | if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || |
| 2316 | ( priv->aui ) ) { |
| 2317 | status = MII_GS_LINK; |
| 2318 | printk( "TLAN: %s: Link forced.\n", dev->name ); |
| 2319 | } else { |
| 2320 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| 2321 | udelay( 1000 ); |
| 2322 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| 2323 | if ( (status & MII_GS_LINK) && |
| 2324 | /* We only support link info on Nat.Sem. PHY's */ |
| 2325 | (tlphy_id1 == NAT_SEM_ID1) && |
| 2326 | (tlphy_id2 == NAT_SEM_ID2) ) { |
| 2327 | TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner ); |
| 2328 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par ); |
| 2329 | |
| 2330 | printk( "TLAN: %s: Link active with ", dev->name ); |
| 2331 | if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) { |
| 2332 | printk( "forced 10%sMbps %s-Duplex\n", |
| 2333 | tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", |
| 2334 | tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); |
| 2335 | } else { |
| 2336 | printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n", |
| 2337 | tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", |
| 2338 | tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); |
| 2339 | printk("TLAN: Partner capability: "); |
| 2340 | for (i = 5; i <= 10; i++) |
| 2341 | if (partner & (1<<i)) |
| 2342 | printk("%s",media[i-5]); |
| 2343 | printk("\n"); |
| 2344 | } |
| 2345 | |
| 2346 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); |
| 2347 | #ifdef MONITOR |
| 2348 | /* We have link beat..for now anyway */ |
| 2349 | priv->link = 1; |
| 2350 | /*Enabling link beat monitoring */ |
| 2351 | TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT ); |
| 2352 | #endif |
| 2353 | } else if (status & MII_GS_LINK) { |
| 2354 | printk( "TLAN: %s: Link active\n", dev->name ); |
| 2355 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); |
| 2356 | } |
| 2357 | } |
| 2358 | |
| 2359 | if ( priv->phyNum == 0 ) { |
| 2360 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); |
| 2361 | tlphy_ctl |= TLAN_TC_INTEN; |
| 2362 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl ); |
| 2363 | sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO ); |
| 2364 | sio |= TLAN_NET_SIO_MINTEN; |
| 2365 | TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio ); |
| 2366 | } |
| 2367 | |
| 2368 | if ( status & MII_GS_LINK ) { |
| 2369 | TLan_SetMac( dev, 0, dev->dev_addr ); |
| 2370 | priv->phyOnline = 1; |
| 2371 | outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); |
| 2372 | if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) { |
| 2373 | outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); |
| 2374 | } |
| 2375 | outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM ); |
| 2376 | outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD ); |
| 2377 | netif_carrier_on(dev); |
| 2378 | } else { |
| 2379 | printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", |
| 2380 | dev->name ); |
| 2381 | TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET ); |
| 2382 | return; |
| 2383 | } |
| 2384 | TLan_SetMulticastList(dev); |
| 2385 | |
| 2386 | } /* TLan_FinishReset */ |
| 2387 | |
| 2388 | |
| 2389 | |
| 2390 | |
| 2391 | /*************************************************************** |
| 2392 | * TLan_SetMac |
| 2393 | * |
| 2394 | * Returns: |
| 2395 | * Nothing |
| 2396 | * Parms: |
| 2397 | * dev Pointer to device structure of adapter |
| 2398 | * on which to change the AREG. |
| 2399 | * areg The AREG to set the address in (0 - 3). |
| 2400 | * mac A pointer to an array of chars. Each |
| 2401 | * element stores one byte of the address. |
| 2402 | * IE, it isn't in ascii. |
| 2403 | * |
| 2404 | * This function transfers a MAC address to one of the |
| 2405 | * TLAN AREGs (address registers). The TLAN chip locks |
| 2406 | * the register on writing to offset 0 and unlocks the |
| 2407 | * register after writing to offset 5. If NULL is passed |
| 2408 | * in mac, then the AREG is filled with 0's. |
| 2409 | * |
| 2410 | **************************************************************/ |
| 2411 | |
| 2412 | static void TLan_SetMac( struct net_device *dev, int areg, char *mac ) |
| 2413 | { |
| 2414 | int i; |
| 2415 | |
| 2416 | areg *= 6; |
| 2417 | |
| 2418 | if ( mac != NULL ) { |
| 2419 | for ( i = 0; i < 6; i++ ) |
| 2420 | TLan_DioWrite8( dev->base_addr, |
| 2421 | TLAN_AREG_0 + areg + i, mac[i] ); |
| 2422 | } else { |
| 2423 | for ( i = 0; i < 6; i++ ) |
| 2424 | TLan_DioWrite8( dev->base_addr, |
| 2425 | TLAN_AREG_0 + areg + i, 0 ); |
| 2426 | } |
| 2427 | |
| 2428 | } /* TLan_SetMac */ |
| 2429 | |
| 2430 | |
| 2431 | |
| 2432 | |
| 2433 | /***************************************************************************** |
| 2434 | ****************************************************************************** |
| 2435 | |
| 2436 | ThunderLAN Driver PHY Layer Routines |
| 2437 | |
| 2438 | ****************************************************************************** |
| 2439 | *****************************************************************************/ |
| 2440 | |
| 2441 | |
| 2442 | |
| 2443 | /********************************************************************* |
| 2444 | * TLan_PhyPrint |
| 2445 | * |
| 2446 | * Returns: |
| 2447 | * Nothing |
| 2448 | * Parms: |
| 2449 | * dev A pointer to the device structure of the |
| 2450 | * TLAN device having the PHYs to be detailed. |
| 2451 | * |
| 2452 | * This function prints the registers a PHY (aka transceiver). |
| 2453 | * |
| 2454 | ********************************************************************/ |
| 2455 | |
| 2456 | static void TLan_PhyPrint( struct net_device *dev ) |
| 2457 | { |
| 2458 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2459 | u16 i, data0, data1, data2, data3, phy; |
| 2460 | |
| 2461 | phy = priv->phy[priv->phyNum]; |
| 2462 | |
| 2463 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| 2464 | printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name ); |
| 2465 | } else if ( phy <= TLAN_PHY_MAX_ADDR ) { |
| 2466 | printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy ); |
| 2467 | printk( "TLAN: Off. +0 +1 +2 +3 \n" ); |
| 2468 | for ( i = 0; i < 0x20; i+= 4 ) { |
| 2469 | printk( "TLAN: 0x%02x", i ); |
| 2470 | TLan_MiiReadReg( dev, phy, i, &data0 ); |
| 2471 | printk( " 0x%04hx", data0 ); |
| 2472 | TLan_MiiReadReg( dev, phy, i + 1, &data1 ); |
| 2473 | printk( " 0x%04hx", data1 ); |
| 2474 | TLan_MiiReadReg( dev, phy, i + 2, &data2 ); |
| 2475 | printk( " 0x%04hx", data2 ); |
| 2476 | TLan_MiiReadReg( dev, phy, i + 3, &data3 ); |
| 2477 | printk( " 0x%04hx\n", data3 ); |
| 2478 | } |
| 2479 | } else { |
| 2480 | printk( "TLAN: Device %s, Invalid PHY.\n", dev->name ); |
| 2481 | } |
| 2482 | |
| 2483 | } /* TLan_PhyPrint */ |
| 2484 | |
| 2485 | |
| 2486 | |
| 2487 | |
| 2488 | /********************************************************************* |
| 2489 | * TLan_PhyDetect |
| 2490 | * |
| 2491 | * Returns: |
| 2492 | * Nothing |
| 2493 | * Parms: |
| 2494 | * dev A pointer to the device structure of the adapter |
| 2495 | * for which the PHY needs determined. |
| 2496 | * |
| 2497 | * So far I've found that adapters which have external PHYs |
| 2498 | * may also use the internal PHY for part of the functionality. |
| 2499 | * (eg, AUI/Thinnet). This function finds out if this TLAN |
| 2500 | * chip has an internal PHY, and then finds the first external |
| 2501 | * PHY (starting from address 0) if it exists). |
| 2502 | * |
| 2503 | ********************************************************************/ |
| 2504 | |
| 2505 | static void TLan_PhyDetect( struct net_device *dev ) |
| 2506 | { |
| 2507 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2508 | u16 control; |
| 2509 | u16 hi; |
| 2510 | u16 lo; |
| 2511 | u32 phy; |
| 2512 | |
| 2513 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| 2514 | priv->phyNum = 0xFFFF; |
| 2515 | return; |
| 2516 | } |
| 2517 | |
| 2518 | TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi ); |
| 2519 | |
| 2520 | if ( hi != 0xFFFF ) { |
| 2521 | priv->phy[0] = TLAN_PHY_MAX_ADDR; |
| 2522 | } else { |
| 2523 | priv->phy[0] = TLAN_PHY_NONE; |
| 2524 | } |
| 2525 | |
| 2526 | priv->phy[1] = TLAN_PHY_NONE; |
| 2527 | for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) { |
| 2528 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control ); |
| 2529 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi ); |
| 2530 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo ); |
| 2531 | if ( ( control != 0xFFFF ) || |
| 2532 | ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) { |
| 2533 | TLAN_DBG( TLAN_DEBUG_GNRL, |
| 2534 | "PHY found at %02x %04x %04x %04x\n", |
| 2535 | phy, control, hi, lo ); |
| 2536 | if ( ( priv->phy[1] == TLAN_PHY_NONE ) && |
| 2537 | ( phy != TLAN_PHY_MAX_ADDR ) ) { |
| 2538 | priv->phy[1] = phy; |
| 2539 | } |
| 2540 | } |
| 2541 | } |
| 2542 | |
| 2543 | if ( priv->phy[1] != TLAN_PHY_NONE ) { |
| 2544 | priv->phyNum = 1; |
| 2545 | } else if ( priv->phy[0] != TLAN_PHY_NONE ) { |
| 2546 | priv->phyNum = 0; |
| 2547 | } else { |
| 2548 | printk( "TLAN: Cannot initialize device, no PHY was found!\n" ); |
| 2549 | } |
| 2550 | |
| 2551 | } /* TLan_PhyDetect */ |
| 2552 | |
| 2553 | |
| 2554 | |
| 2555 | |
| 2556 | static void TLan_PhyPowerDown( struct net_device *dev ) |
| 2557 | { |
| 2558 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2559 | u16 value; |
| 2560 | |
| 2561 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name ); |
| 2562 | value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE; |
| 2563 | TLan_MiiSync( dev->base_addr ); |
| 2564 | TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); |
| 2565 | if ( ( priv->phyNum == 0 ) && |
| 2566 | ( priv->phy[1] != TLAN_PHY_NONE ) && |
| 2567 | ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) { |
| 2568 | TLan_MiiSync( dev->base_addr ); |
| 2569 | TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value ); |
| 2570 | } |
| 2571 | |
| 2572 | /* Wait for 50 ms and powerup |
| 2573 | * This is abitrary. It is intended to make sure the |
| 2574 | * transceiver settles. |
| 2575 | */ |
| 2576 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP ); |
| 2577 | |
| 2578 | } /* TLan_PhyPowerDown */ |
| 2579 | |
| 2580 | |
| 2581 | |
| 2582 | |
| 2583 | static void TLan_PhyPowerUp( struct net_device *dev ) |
| 2584 | { |
| 2585 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2586 | u16 value; |
| 2587 | |
| 2588 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name ); |
| 2589 | TLan_MiiSync( dev->base_addr ); |
| 2590 | value = MII_GC_LOOPBK; |
| 2591 | TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); |
| 2592 | TLan_MiiSync(dev->base_addr); |
| 2593 | /* Wait for 500 ms and reset the |
| 2594 | * transceiver. The TLAN docs say both 50 ms and |
| 2595 | * 500 ms, so do the longer, just in case. |
| 2596 | */ |
| 2597 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET ); |
| 2598 | |
| 2599 | } /* TLan_PhyPowerUp */ |
| 2600 | |
| 2601 | |
| 2602 | |
| 2603 | |
| 2604 | static void TLan_PhyReset( struct net_device *dev ) |
| 2605 | { |
| 2606 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2607 | u16 phy; |
| 2608 | u16 value; |
| 2609 | |
| 2610 | phy = priv->phy[priv->phyNum]; |
| 2611 | |
| 2612 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name ); |
| 2613 | TLan_MiiSync( dev->base_addr ); |
| 2614 | value = MII_GC_LOOPBK | MII_GC_RESET; |
| 2615 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value ); |
| 2616 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); |
| 2617 | while ( value & MII_GC_RESET ) { |
| 2618 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); |
| 2619 | } |
| 2620 | |
| 2621 | /* Wait for 500 ms and initialize. |
| 2622 | * I don't remember why I wait this long. |
| 2623 | * I've changed this to 50ms, as it seems long enough. |
| 2624 | */ |
| 2625 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK ); |
| 2626 | |
| 2627 | } /* TLan_PhyReset */ |
| 2628 | |
| 2629 | |
| 2630 | |
| 2631 | |
| 2632 | static void TLan_PhyStartLink( struct net_device *dev ) |
| 2633 | { |
| 2634 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2635 | u16 ability; |
| 2636 | u16 control; |
| 2637 | u16 data; |
| 2638 | u16 phy; |
| 2639 | u16 status; |
| 2640 | u16 tctl; |
| 2641 | |
| 2642 | phy = priv->phy[priv->phyNum]; |
| 2643 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name ); |
| 2644 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| 2645 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability ); |
| 2646 | |
| 2647 | if ( ( status & MII_GS_AUTONEG ) && |
| 2648 | ( ! priv->aui ) ) { |
| 2649 | ability = status >> 11; |
| 2650 | if ( priv->speed == TLAN_SPEED_10 && |
| 2651 | priv->duplex == TLAN_DUPLEX_HALF) { |
| 2652 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000); |
| 2653 | } else if ( priv->speed == TLAN_SPEED_10 && |
| 2654 | priv->duplex == TLAN_DUPLEX_FULL) { |
| 2655 | priv->tlanFullDuplex = TRUE; |
| 2656 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100); |
| 2657 | } else if ( priv->speed == TLAN_SPEED_100 && |
| 2658 | priv->duplex == TLAN_DUPLEX_HALF) { |
| 2659 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000); |
| 2660 | } else if ( priv->speed == TLAN_SPEED_100 && |
| 2661 | priv->duplex == TLAN_DUPLEX_FULL) { |
| 2662 | priv->tlanFullDuplex = TRUE; |
| 2663 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100); |
| 2664 | } else { |
| 2665 | |
| 2666 | /* Set Auto-Neg advertisement */ |
| 2667 | TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1); |
| 2668 | /* Enablee Auto-Neg */ |
| 2669 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 ); |
| 2670 | /* Restart Auto-Neg */ |
| 2671 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 ); |
| 2672 | /* Wait for 4 sec for autonegotiation |
| 2673 | * to complete. The max spec time is less than this |
| 2674 | * but the card need additional time to start AN. |
| 2675 | * .5 sec should be plenty extra. |
| 2676 | */ |
| 2677 | printk( "TLAN: %s: Starting autonegotiation.\n", dev->name ); |
| 2678 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN ); |
| 2679 | return; |
| 2680 | } |
| 2681 | |
| 2682 | } |
| 2683 | |
| 2684 | if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) { |
| 2685 | priv->phyNum = 0; |
| 2686 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| 2687 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); |
| 2688 | TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN ); |
| 2689 | return; |
| 2690 | } else if ( priv->phyNum == 0 ) { |
| 2691 | control = 0; |
| 2692 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl ); |
| 2693 | if ( priv->aui ) { |
| 2694 | tctl |= TLAN_TC_AUISEL; |
| 2695 | } else { |
| 2696 | tctl &= ~TLAN_TC_AUISEL; |
| 2697 | if ( priv->duplex == TLAN_DUPLEX_FULL ) { |
| 2698 | control |= MII_GC_DUPLEX; |
| 2699 | priv->tlanFullDuplex = TRUE; |
| 2700 | } |
| 2701 | if ( priv->speed == TLAN_SPEED_100 ) { |
| 2702 | control |= MII_GC_SPEEDSEL; |
| 2703 | } |
| 2704 | } |
| 2705 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control ); |
| 2706 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl ); |
| 2707 | } |
| 2708 | |
| 2709 | /* Wait for 2 sec to give the transceiver time |
| 2710 | * to establish link. |
| 2711 | */ |
| 2712 | TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET ); |
| 2713 | |
| 2714 | } /* TLan_PhyStartLink */ |
| 2715 | |
| 2716 | |
| 2717 | |
| 2718 | |
| 2719 | static void TLan_PhyFinishAutoNeg( struct net_device *dev ) |
| 2720 | { |
| 2721 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2722 | u16 an_adv; |
| 2723 | u16 an_lpa; |
| 2724 | u16 data; |
| 2725 | u16 mode; |
| 2726 | u16 phy; |
| 2727 | u16 status; |
| 2728 | |
| 2729 | phy = priv->phy[priv->phyNum]; |
| 2730 | |
| 2731 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| 2732 | udelay( 1000 ); |
| 2733 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| 2734 | |
| 2735 | if ( ! ( status & MII_GS_AUTOCMPLT ) ) { |
| 2736 | /* Wait for 8 sec to give the process |
| 2737 | * more time. Perhaps we should fail after a while. |
| 2738 | */ |
| 2739 | if (!priv->neg_be_verbose++) { |
| 2740 | pr_info("TLAN: Giving autonegotiation more time.\n"); |
| 2741 | pr_info("TLAN: Please check that your adapter has\n"); |
| 2742 | pr_info("TLAN: been properly connected to a HUB or Switch.\n"); |
| 2743 | pr_info("TLAN: Trying to establish link in the background...\n"); |
| 2744 | } |
| 2745 | TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN ); |
| 2746 | return; |
| 2747 | } |
| 2748 | |
| 2749 | printk( "TLAN: %s: Autonegotiation complete.\n", dev->name ); |
| 2750 | TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv ); |
| 2751 | TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa ); |
| 2752 | mode = an_adv & an_lpa & 0x03E0; |
| 2753 | if ( mode & 0x0100 ) { |
| 2754 | priv->tlanFullDuplex = TRUE; |
| 2755 | } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) { |
| 2756 | priv->tlanFullDuplex = TRUE; |
| 2757 | } |
| 2758 | |
| 2759 | if ( ( ! ( mode & 0x0180 ) ) && |
| 2760 | ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && |
| 2761 | ( priv->phyNum != 0 ) ) { |
| 2762 | priv->phyNum = 0; |
| 2763 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| 2764 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); |
| 2765 | TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN ); |
| 2766 | return; |
| 2767 | } |
| 2768 | |
| 2769 | if ( priv->phyNum == 0 ) { |
| 2770 | if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || |
| 2771 | ( an_adv & an_lpa & 0x0040 ) ) { |
| 2772 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, |
| 2773 | MII_GC_AUTOENB | MII_GC_DUPLEX ); |
| 2774 | pr_info("TLAN: Starting internal PHY with FULL-DUPLEX\n" ); |
| 2775 | } else { |
| 2776 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB ); |
| 2777 | pr_info( "TLAN: Starting internal PHY with HALF-DUPLEX\n" ); |
| 2778 | } |
| 2779 | } |
| 2780 | |
| 2781 | /* Wait for 100 ms. No reason in partiticular. |
| 2782 | */ |
| 2783 | TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET ); |
| 2784 | |
| 2785 | } /* TLan_PhyFinishAutoNeg */ |
| 2786 | |
| 2787 | #ifdef MONITOR |
| 2788 | |
| 2789 | /********************************************************************* |
| 2790 | * |
| 2791 | * TLan_phyMonitor |
| 2792 | * |
| 2793 | * Returns: |
| 2794 | * None |
| 2795 | * |
| 2796 | * Params: |
| 2797 | * dev The device structure of this device. |
| 2798 | * |
| 2799 | * |
| 2800 | * This function monitors PHY condition by reading the status |
| 2801 | * register via the MII bus. This can be used to give info |
| 2802 | * about link changes (up/down), and possible switch to alternate |
| 2803 | * media. |
| 2804 | * |
| 2805 | * ******************************************************************/ |
| 2806 | |
| 2807 | void TLan_PhyMonitor( struct net_device *dev ) |
| 2808 | { |
| 2809 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2810 | u16 phy; |
| 2811 | u16 phy_status; |
| 2812 | |
| 2813 | phy = priv->phy[priv->phyNum]; |
| 2814 | |
| 2815 | /* Get PHY status register */ |
| 2816 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status ); |
| 2817 | |
| 2818 | /* Check if link has been lost */ |
| 2819 | if (!(phy_status & MII_GS_LINK)) { |
| 2820 | if (priv->link) { |
| 2821 | priv->link = 0; |
| 2822 | printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name); |
| 2823 | netif_carrier_off(dev); |
| 2824 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); |
| 2825 | return; |
| 2826 | } |
| 2827 | } |
| 2828 | |
| 2829 | /* Link restablished? */ |
| 2830 | if ((phy_status & MII_GS_LINK) && !priv->link) { |
| 2831 | priv->link = 1; |
| 2832 | printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name); |
| 2833 | netif_carrier_on(dev); |
| 2834 | } |
| 2835 | |
| 2836 | /* Setup a new monitor */ |
| 2837 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); |
| 2838 | } |
| 2839 | |
| 2840 | #endif /* MONITOR */ |
| 2841 | |
| 2842 | |
| 2843 | /***************************************************************************** |
| 2844 | ****************************************************************************** |
| 2845 | |
| 2846 | ThunderLAN Driver MII Routines |
| 2847 | |
| 2848 | These routines are based on the information in Chap. 2 of the |
| 2849 | "ThunderLAN Programmer's Guide", pp. 15-24. |
| 2850 | |
| 2851 | ****************************************************************************** |
| 2852 | *****************************************************************************/ |
| 2853 | |
| 2854 | |
| 2855 | /*************************************************************** |
| 2856 | * TLan_MiiReadReg |
| 2857 | * |
| 2858 | * Returns: |
| 2859 | * 0 if ack received ok |
| 2860 | * 1 otherwise. |
| 2861 | * |
| 2862 | * Parms: |
| 2863 | * dev The device structure containing |
| 2864 | * The io address and interrupt count |
| 2865 | * for this device. |
| 2866 | * phy The address of the PHY to be queried. |
| 2867 | * reg The register whose contents are to be |
| 2868 | * retrieved. |
| 2869 | * val A pointer to a variable to store the |
| 2870 | * retrieved value. |
| 2871 | * |
| 2872 | * This function uses the TLAN's MII bus to retrieve the contents |
| 2873 | * of a given register on a PHY. It sends the appropriate info |
| 2874 | * and then reads the 16-bit register value from the MII bus via |
| 2875 | * the TLAN SIO register. |
| 2876 | * |
| 2877 | **************************************************************/ |
| 2878 | |
| 2879 | static int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val ) |
| 2880 | { |
| 2881 | u8 nack; |
| 2882 | u16 sio, tmp; |
| 2883 | u32 i; |
| 2884 | int err; |
| 2885 | int minten; |
| 2886 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 2887 | unsigned long flags = 0; |
| 2888 | |
| 2889 | err = FALSE; |
| 2890 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
| 2891 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 2892 | |
| 2893 | if (!in_irq()) |
| 2894 | spin_lock_irqsave(&priv->lock, flags); |
| 2895 | |
| 2896 | TLan_MiiSync(dev->base_addr); |
| 2897 | |
| 2898 | minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); |
| 2899 | if ( minten ) |
| 2900 | TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio); |
| 2901 | |
| 2902 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ |
| 2903 | TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */ |
| 2904 | TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ |
| 2905 | TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ |
| 2906 | |
| 2907 | |
| 2908 | TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */ |
| 2909 | |
| 2910 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */ |
| 2911 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| 2912 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */ |
| 2913 | |
| 2914 | nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */ |
| 2915 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */ |
| 2916 | if (nack) { /* No ACK, so fake it */ |
| 2917 | for (i = 0; i < 16; i++) { |
| 2918 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); |
| 2919 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| 2920 | } |
| 2921 | tmp = 0xffff; |
| 2922 | err = TRUE; |
| 2923 | } else { /* ACK, so read data */ |
| 2924 | for (tmp = 0, i = 0x8000; i; i >>= 1) { |
| 2925 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); |
| 2926 | if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio)) |
| 2927 | tmp |= i; |
| 2928 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| 2929 | } |
| 2930 | } |
| 2931 | |
| 2932 | |
| 2933 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */ |
| 2934 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| 2935 | |
| 2936 | if ( minten ) |
| 2937 | TLan_SetBit(TLAN_NET_SIO_MINTEN, sio); |
| 2938 | |
| 2939 | *val = tmp; |
| 2940 | |
| 2941 | if (!in_irq()) |
| 2942 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2943 | |
| 2944 | return err; |
| 2945 | |
| 2946 | } /* TLan_MiiReadReg */ |
| 2947 | |
| 2948 | |
| 2949 | |
| 2950 | |
| 2951 | /*************************************************************** |
| 2952 | * TLan_MiiSendData |
| 2953 | * |
| 2954 | * Returns: |
| 2955 | * Nothing |
| 2956 | * Parms: |
| 2957 | * base_port The base IO port of the adapter in |
| 2958 | * question. |
| 2959 | * dev The address of the PHY to be queried. |
| 2960 | * data The value to be placed on the MII bus. |
| 2961 | * num_bits The number of bits in data that are to |
| 2962 | * be placed on the MII bus. |
| 2963 | * |
| 2964 | * This function sends on sequence of bits on the MII |
| 2965 | * configuration bus. |
| 2966 | * |
| 2967 | **************************************************************/ |
| 2968 | |
| 2969 | static void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits ) |
| 2970 | { |
| 2971 | u16 sio; |
| 2972 | u32 i; |
| 2973 | |
| 2974 | if ( num_bits == 0 ) |
| 2975 | return; |
| 2976 | |
| 2977 | outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); |
| 2978 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 2979 | TLan_SetBit( TLAN_NET_SIO_MTXEN, sio ); |
| 2980 | |
| 2981 | for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) { |
| 2982 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); |
| 2983 | (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); |
| 2984 | if ( data & i ) |
| 2985 | TLan_SetBit( TLAN_NET_SIO_MDATA, sio ); |
| 2986 | else |
| 2987 | TLan_ClearBit( TLAN_NET_SIO_MDATA, sio ); |
| 2988 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| 2989 | (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); |
| 2990 | } |
| 2991 | |
| 2992 | } /* TLan_MiiSendData */ |
| 2993 | |
| 2994 | |
| 2995 | |
| 2996 | |
| 2997 | /*************************************************************** |
| 2998 | * TLan_MiiSync |
| 2999 | * |
| 3000 | * Returns: |
| 3001 | * Nothing |
| 3002 | * Parms: |
| 3003 | * base_port The base IO port of the adapter in |
| 3004 | * question. |
| 3005 | * |
| 3006 | * This functions syncs all PHYs in terms of the MII configuration |
| 3007 | * bus. |
| 3008 | * |
| 3009 | **************************************************************/ |
| 3010 | |
| 3011 | static void TLan_MiiSync( u16 base_port ) |
| 3012 | { |
| 3013 | int i; |
| 3014 | u16 sio; |
| 3015 | |
| 3016 | outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); |
| 3017 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 3018 | |
| 3019 | TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio ); |
| 3020 | for ( i = 0; i < 32; i++ ) { |
| 3021 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); |
| 3022 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| 3023 | } |
| 3024 | |
| 3025 | } /* TLan_MiiSync */ |
| 3026 | |
| 3027 | |
| 3028 | |
| 3029 | |
| 3030 | /*************************************************************** |
| 3031 | * TLan_MiiWriteReg |
| 3032 | * |
| 3033 | * Returns: |
| 3034 | * Nothing |
| 3035 | * Parms: |
| 3036 | * dev The device structure for the device |
| 3037 | * to write to. |
| 3038 | * phy The address of the PHY to be written to. |
| 3039 | * reg The register whose contents are to be |
| 3040 | * written. |
| 3041 | * val The value to be written to the register. |
| 3042 | * |
| 3043 | * This function uses the TLAN's MII bus to write the contents of a |
| 3044 | * given register on a PHY. It sends the appropriate info and then |
| 3045 | * writes the 16-bit register value from the MII configuration bus |
| 3046 | * via the TLAN SIO register. |
| 3047 | * |
| 3048 | **************************************************************/ |
| 3049 | |
| 3050 | static void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val ) |
| 3051 | { |
| 3052 | u16 sio; |
| 3053 | int minten; |
| 3054 | unsigned long flags = 0; |
| 3055 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 3056 | |
| 3057 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
| 3058 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 3059 | |
| 3060 | if (!in_irq()) |
| 3061 | spin_lock_irqsave(&priv->lock, flags); |
| 3062 | |
| 3063 | TLan_MiiSync( dev->base_addr ); |
| 3064 | |
| 3065 | minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); |
| 3066 | if ( minten ) |
| 3067 | TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio ); |
| 3068 | |
| 3069 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ |
| 3070 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */ |
| 3071 | TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ |
| 3072 | TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ |
| 3073 | |
| 3074 | TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */ |
| 3075 | TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */ |
| 3076 | |
| 3077 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */ |
| 3078 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| 3079 | |
| 3080 | if ( minten ) |
| 3081 | TLan_SetBit( TLAN_NET_SIO_MINTEN, sio ); |
| 3082 | |
| 3083 | if (!in_irq()) |
| 3084 | spin_unlock_irqrestore(&priv->lock, flags); |
| 3085 | |
| 3086 | } /* TLan_MiiWriteReg */ |
| 3087 | |
| 3088 | |
| 3089 | |
| 3090 | |
| 3091 | /***************************************************************************** |
| 3092 | ****************************************************************************** |
| 3093 | |
| 3094 | ThunderLAN Driver Eeprom routines |
| 3095 | |
| 3096 | The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A |
| 3097 | EEPROM. These functions are based on information in Microchip's |
| 3098 | data sheet. I don't know how well this functions will work with |
| 3099 | other EEPROMs. |
| 3100 | |
| 3101 | ****************************************************************************** |
| 3102 | *****************************************************************************/ |
| 3103 | |
| 3104 | |
| 3105 | /*************************************************************** |
| 3106 | * TLan_EeSendStart |
| 3107 | * |
| 3108 | * Returns: |
| 3109 | * Nothing |
| 3110 | * Parms: |
| 3111 | * io_base The IO port base address for the |
| 3112 | * TLAN device with the EEPROM to |
| 3113 | * use. |
| 3114 | * |
| 3115 | * This function sends a start cycle to an EEPROM attached |
| 3116 | * to a TLAN chip. |
| 3117 | * |
| 3118 | **************************************************************/ |
| 3119 | |
| 3120 | static void TLan_EeSendStart( u16 io_base ) |
| 3121 | { |
| 3122 | u16 sio; |
| 3123 | |
| 3124 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); |
| 3125 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 3126 | |
| 3127 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3128 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); |
| 3129 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); |
| 3130 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); |
| 3131 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3132 | |
| 3133 | } /* TLan_EeSendStart */ |
| 3134 | |
| 3135 | |
| 3136 | |
| 3137 | |
| 3138 | /*************************************************************** |
| 3139 | * TLan_EeSendByte |
| 3140 | * |
| 3141 | * Returns: |
| 3142 | * If the correct ack was received, 0, otherwise 1 |
| 3143 | * Parms: io_base The IO port base address for the |
| 3144 | * TLAN device with the EEPROM to |
| 3145 | * use. |
| 3146 | * data The 8 bits of information to |
| 3147 | * send to the EEPROM. |
| 3148 | * stop If TLAN_EEPROM_STOP is passed, a |
| 3149 | * stop cycle is sent after the |
| 3150 | * byte is sent after the ack is |
| 3151 | * read. |
| 3152 | * |
| 3153 | * This function sends a byte on the serial EEPROM line, |
| 3154 | * driving the clock to send each bit. The function then |
| 3155 | * reverses transmission direction and reads an acknowledge |
| 3156 | * bit. |
| 3157 | * |
| 3158 | **************************************************************/ |
| 3159 | |
| 3160 | static int TLan_EeSendByte( u16 io_base, u8 data, int stop ) |
| 3161 | { |
| 3162 | int err; |
| 3163 | u8 place; |
| 3164 | u16 sio; |
| 3165 | |
| 3166 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); |
| 3167 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 3168 | |
| 3169 | /* Assume clock is low, tx is enabled; */ |
| 3170 | for ( place = 0x80; place != 0; place >>= 1 ) { |
| 3171 | if ( place & data ) |
| 3172 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); |
| 3173 | else |
| 3174 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); |
| 3175 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3176 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3177 | } |
| 3178 | TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio ); |
| 3179 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3180 | err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio ); |
| 3181 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3182 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); |
| 3183 | |
| 3184 | if ( ( ! err ) && stop ) { |
| 3185 | /* STOP, raise data while clock is high */ |
| 3186 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); |
| 3187 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3188 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); |
| 3189 | } |
| 3190 | |
| 3191 | return ( err ); |
| 3192 | |
| 3193 | } /* TLan_EeSendByte */ |
| 3194 | |
| 3195 | |
| 3196 | |
| 3197 | |
| 3198 | /*************************************************************** |
| 3199 | * TLan_EeReceiveByte |
| 3200 | * |
| 3201 | * Returns: |
| 3202 | * Nothing |
| 3203 | * Parms: |
| 3204 | * io_base The IO port base address for the |
| 3205 | * TLAN device with the EEPROM to |
| 3206 | * use. |
| 3207 | * data An address to a char to hold the |
| 3208 | * data sent from the EEPROM. |
| 3209 | * stop If TLAN_EEPROM_STOP is passed, a |
| 3210 | * stop cycle is sent after the |
| 3211 | * byte is received, and no ack is |
| 3212 | * sent. |
| 3213 | * |
| 3214 | * This function receives 8 bits of data from the EEPROM |
| 3215 | * over the serial link. It then sends and ack bit, or no |
| 3216 | * ack and a stop bit. This function is used to retrieve |
| 3217 | * data after the address of a byte in the EEPROM has been |
| 3218 | * sent. |
| 3219 | * |
| 3220 | **************************************************************/ |
| 3221 | |
| 3222 | static void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop ) |
| 3223 | { |
| 3224 | u8 place; |
| 3225 | u16 sio; |
| 3226 | |
| 3227 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); |
| 3228 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
| 3229 | *data = 0; |
| 3230 | |
| 3231 | /* Assume clock is low, tx is enabled; */ |
| 3232 | TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio ); |
| 3233 | for ( place = 0x80; place; place >>= 1 ) { |
| 3234 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3235 | if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) ) |
| 3236 | *data |= place; |
| 3237 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3238 | } |
| 3239 | |
| 3240 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); |
| 3241 | if ( ! stop ) { |
| 3242 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */ |
| 3243 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3244 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3245 | } else { |
| 3246 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */ |
| 3247 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3248 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3249 | /* STOP, raise data while clock is high */ |
| 3250 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); |
| 3251 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| 3252 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); |
| 3253 | } |
| 3254 | |
| 3255 | } /* TLan_EeReceiveByte */ |
| 3256 | |
| 3257 | |
| 3258 | |
| 3259 | |
| 3260 | /*************************************************************** |
| 3261 | * TLan_EeReadByte |
| 3262 | * |
| 3263 | * Returns: |
| 3264 | * No error = 0, else, the stage at which the error |
| 3265 | * occurred. |
| 3266 | * Parms: |
| 3267 | * io_base The IO port base address for the |
| 3268 | * TLAN device with the EEPROM to |
| 3269 | * use. |
| 3270 | * ee_addr The address of the byte in the |
| 3271 | * EEPROM whose contents are to be |
| 3272 | * retrieved. |
| 3273 | * data An address to a char to hold the |
| 3274 | * data obtained from the EEPROM. |
| 3275 | * |
| 3276 | * This function reads a byte of information from an byte |
| 3277 | * cell in the EEPROM. |
| 3278 | * |
| 3279 | **************************************************************/ |
| 3280 | |
| 3281 | static int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data ) |
| 3282 | { |
| 3283 | int err; |
| 3284 | TLanPrivateInfo *priv = netdev_priv(dev); |
| 3285 | unsigned long flags = 0; |
| 3286 | int ret=0; |
| 3287 | |
| 3288 | spin_lock_irqsave(&priv->lock, flags); |
| 3289 | |
| 3290 | TLan_EeSendStart( dev->base_addr ); |
| 3291 | err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK ); |
| 3292 | if (err) |
| 3293 | { |
| 3294 | ret=1; |
| 3295 | goto fail; |
| 3296 | } |
| 3297 | err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK ); |
| 3298 | if (err) |
| 3299 | { |
| 3300 | ret=2; |
| 3301 | goto fail; |
| 3302 | } |
| 3303 | TLan_EeSendStart( dev->base_addr ); |
| 3304 | err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK ); |
| 3305 | if (err) |
| 3306 | { |
| 3307 | ret=3; |
| 3308 | goto fail; |
| 3309 | } |
| 3310 | TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP ); |
| 3311 | fail: |
| 3312 | spin_unlock_irqrestore(&priv->lock, flags); |
| 3313 | |
| 3314 | return ret; |
| 3315 | |
| 3316 | } /* TLan_EeReadByte */ |
| 3317 | |
| 3318 | |
| 3319 | |