3 * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices.
5 * Copyright (C) 2005 Sensoria Corp
6 * Derived from the unified SMC91x driver by Nicolas Pitre
7 * and the smsc911x.c reference driver by SMSC
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * watchdog = TX watchdog timeout
25 * tx_fifo_kb = Size of TX FIFO in KB
28 * 04/16/05 Dustin McIntire Initial version
30 static const char version[] =
31 "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n";
33 /* Debugging options */
34 #define ENABLE_SMC_DEBUG_RX 0
35 #define ENABLE_SMC_DEBUG_TX 0
36 #define ENABLE_SMC_DEBUG_DMA 0
37 #define ENABLE_SMC_DEBUG_PKTS 0
38 #define ENABLE_SMC_DEBUG_MISC 0
39 #define ENABLE_SMC_DEBUG_FUNC 0
41 #define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0)
42 #define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1)
43 #define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2)
44 #define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3)
45 #define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4)
46 #define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5)
49 #define SMC_DEBUG ( SMC_DEBUG_RX | \
58 #include <linux/init.h>
59 #include <linux/module.h>
60 #include <linux/kernel.h>
61 #include <linux/sched.h>
62 #include <linux/slab.h>
63 #include <linux/delay.h>
64 #include <linux/interrupt.h>
65 #include <linux/errno.h>
66 #include <linux/ioport.h>
67 #include <linux/crc32.h>
68 #include <linux/device.h>
69 #include <linux/platform_device.h>
70 #include <linux/spinlock.h>
71 #include <linux/ethtool.h>
72 #include <linux/mii.h>
73 #include <linux/workqueue.h>
75 #include <linux/netdevice.h>
76 #include <linux/etherdevice.h>
77 #include <linux/skbuff.h>
84 * Transmit timeout, default 5 seconds.
86 static int watchdog = 5000;
87 module_param(watchdog, int, 0400);
88 MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
90 static int tx_fifo_kb=8;
91 module_param(tx_fifo_kb, int, 0400);
92 MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)");
94 MODULE_LICENSE("GPL");
95 MODULE_ALIAS("platform:smc911x");
98 * The internal workings of the driver. If you are changing anything
99 * here with the SMC stuff, you should have the datasheet and know
100 * what you are doing.
102 #define CARDNAME "smc911x"
105 * Use power-down feature of the chip
110 #define DBG(n, args...) \
112 if (SMC_DEBUG & (n)) \
116 #define PRINTK(args...) printk(args)
118 #define DBG(n, args...) do { } while (0)
119 #define PRINTK(args...) printk(KERN_DEBUG args)
122 #if SMC_DEBUG_PKTS > 0
123 static void PRINT_PKT(u_char *buf, int length)
130 remainder = length % 16;
132 for (i = 0; i < lines ; i ++) {
134 for (cur = 0; cur < 8; cur++) {
138 printk("%02x%02x ", a, b);
142 for (i = 0; i < remainder/2 ; i++) {
146 printk("%02x%02x ", a, b);
151 #define PRINT_PKT(x...) do { } while (0)
155 /* this enables an interrupt in the interrupt mask register */
156 #define SMC_ENABLE_INT(lp, x) do { \
157 unsigned int __mask; \
158 unsigned long __flags; \
159 spin_lock_irqsave(&lp->lock, __flags); \
160 __mask = SMC_GET_INT_EN((lp)); \
162 SMC_SET_INT_EN((lp), __mask); \
163 spin_unlock_irqrestore(&lp->lock, __flags); \
166 /* this disables an interrupt from the interrupt mask register */
167 #define SMC_DISABLE_INT(lp, x) do { \
168 unsigned int __mask; \
169 unsigned long __flags; \
170 spin_lock_irqsave(&lp->lock, __flags); \
171 __mask = SMC_GET_INT_EN((lp)); \
173 SMC_SET_INT_EN((lp), __mask); \
174 spin_unlock_irqrestore(&lp->lock, __flags); \
178 * this does a soft reset on the device
180 static void smc911x_reset(struct net_device *dev)
182 struct smc911x_local *lp = netdev_priv(dev);
183 unsigned int reg, timeout=0, resets=1;
186 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
188 /* Take out of PM setting first */
189 if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) {
190 /* Write to the bytetest will take out of powerdown */
191 SMC_SET_BYTE_TEST(lp, 0);
195 reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_;
196 } while (--timeout && !reg);
198 PRINTK("%s: smc911x_reset timeout waiting for PM restore\n", dev->name);
203 /* Disable all interrupts */
204 spin_lock_irqsave(&lp->lock, flags);
205 SMC_SET_INT_EN(lp, 0);
206 spin_unlock_irqrestore(&lp->lock, flags);
209 SMC_SET_HW_CFG(lp, HW_CFG_SRST_);
213 reg = SMC_GET_HW_CFG(lp);
214 /* If chip indicates reset timeout then try again */
215 if (reg & HW_CFG_SRST_TO_) {
216 PRINTK("%s: chip reset timeout, retrying...\n", dev->name);
220 } while (--timeout && (reg & HW_CFG_SRST_));
223 PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev->name);
227 /* make sure EEPROM has finished loading before setting GPIO_CFG */
229 while ( timeout-- && (SMC_GET_E2P_CMD(lp) & E2P_CMD_EPC_BUSY_)) {
233 PRINTK("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev->name);
237 /* Initialize interrupts */
238 SMC_SET_INT_EN(lp, 0);
241 /* Reset the FIFO level and flow control settings */
242 SMC_SET_HW_CFG(lp, (lp->tx_fifo_kb & 0xF) << 16);
243 //TODO: Figure out what appropriate pause time is
244 SMC_SET_FLOW(lp, FLOW_FCPT_ | FLOW_FCEN_);
245 SMC_SET_AFC_CFG(lp, lp->afc_cfg);
248 /* Set to LED outputs */
249 SMC_SET_GPIO_CFG(lp, 0x70070000);
252 * Deassert IRQ for 1*10us for edge type interrupts
253 * and drive IRQ pin push-pull
255 SMC_SET_IRQ_CFG(lp, (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_);
257 /* clear anything saved */
258 if (lp->pending_tx_skb != NULL) {
259 dev_kfree_skb (lp->pending_tx_skb);
260 lp->pending_tx_skb = NULL;
261 dev->stats.tx_errors++;
262 dev->stats.tx_aborted_errors++;
267 * Enable Interrupts, Receive, and Transmit
269 static void smc911x_enable(struct net_device *dev)
271 struct smc911x_local *lp = netdev_priv(dev);
272 unsigned mask, cfg, cr;
275 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
277 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
280 cfg = SMC_GET_HW_CFG(lp);
281 cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF;
283 SMC_SET_HW_CFG(lp, cfg);
284 SMC_SET_FIFO_TDA(lp, 0xFF);
285 /* Update TX stats on every 64 packets received or every 1 sec */
286 SMC_SET_FIFO_TSL(lp, 64);
287 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
289 spin_lock_irqsave(&lp->lock, flags);
290 SMC_GET_MAC_CR(lp, cr);
291 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
292 SMC_SET_MAC_CR(lp, cr);
293 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
294 spin_unlock_irqrestore(&lp->lock, flags);
296 /* Add 2 byte padding to start of packets */
297 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
299 /* Turn on receiver and enable RX */
300 if (cr & MAC_CR_RXEN_)
301 DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name);
303 spin_lock_irqsave(&lp->lock, flags);
304 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
305 spin_unlock_irqrestore(&lp->lock, flags);
307 /* Interrupt on every received packet */
308 SMC_SET_FIFO_RSA(lp, 0x01);
309 SMC_SET_FIFO_RSL(lp, 0x00);
311 /* now, enable interrupts */
312 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
313 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
315 if (IS_REV_A(lp->revision))
316 mask|=INT_EN_RDFL_EN_;
318 mask|=INT_EN_RDFO_EN_;
320 SMC_ENABLE_INT(lp, mask);
324 * this puts the device in an inactive state
326 static void smc911x_shutdown(struct net_device *dev)
328 struct smc911x_local *lp = netdev_priv(dev);
332 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __FUNCTION__);
335 SMC_SET_INT_EN(lp, 0);
337 /* Turn of Rx and TX */
338 spin_lock_irqsave(&lp->lock, flags);
339 SMC_GET_MAC_CR(lp, cr);
340 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
341 SMC_SET_MAC_CR(lp, cr);
342 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
343 spin_unlock_irqrestore(&lp->lock, flags);
346 static inline void smc911x_drop_pkt(struct net_device *dev)
348 struct smc911x_local *lp = netdev_priv(dev);
349 unsigned int fifo_count, timeout, reg;
351 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __FUNCTION__);
352 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
353 if (fifo_count <= 4) {
354 /* Manually dump the packet data */
358 /* Fast forward through the bad packet */
359 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
363 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
364 } while (--timeout && reg);
366 PRINTK("%s: timeout waiting for RX fast forward\n", dev->name);
372 * This is the procedure to handle the receipt of a packet.
373 * It should be called after checking for packet presence in
374 * the RX status FIFO. It must be called with the spin lock
377 static inline void smc911x_rcv(struct net_device *dev)
379 struct smc911x_local *lp = netdev_priv(dev);
380 unsigned int pkt_len, status;
384 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n",
385 dev->name, __FUNCTION__);
386 status = SMC_GET_RX_STS_FIFO(lp);
387 DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x \n",
388 dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff);
389 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
390 if (status & RX_STS_ES_) {
391 /* Deal with a bad packet */
392 dev->stats.rx_errors++;
393 if (status & RX_STS_CRC_ERR_)
394 dev->stats.rx_crc_errors++;
396 if (status & RX_STS_LEN_ERR_)
397 dev->stats.rx_length_errors++;
398 if (status & RX_STS_MCAST_)
399 dev->stats.multicast++;
401 /* Remove the bad packet data from the RX FIFO */
402 smc911x_drop_pkt(dev);
404 /* Receive a valid packet */
405 /* Alloc a buffer with extra room for DMA alignment */
406 skb=dev_alloc_skb(pkt_len+32);
407 if (unlikely(skb == NULL)) {
408 PRINTK( "%s: Low memory, rcvd packet dropped.\n",
410 dev->stats.rx_dropped++;
411 smc911x_drop_pkt(dev);
414 /* Align IP header to 32 bits
415 * Note that the device is configured to add a 2
416 * byte padding to the packet start, so we really
417 * want to write to the orignal data pointer */
420 skb_put(skb,pkt_len-4);
424 /* Lower the FIFO threshold if possible */
425 fifo = SMC_GET_FIFO_INT(lp);
426 if (fifo & 0xFF) fifo--;
427 DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n",
428 dev->name, fifo & 0xff);
429 SMC_SET_FIFO_INT(lp, fifo);
431 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
432 lp->rxdma_active = 1;
433 lp->current_rx_skb = skb;
434 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
435 /* Packet processing deferred to DMA RX interrupt */
438 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
439 SMC_PULL_DATA(lp, data, pkt_len+2+3);
441 DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name);
442 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
443 dev->last_rx = jiffies;
444 skb->protocol = eth_type_trans(skb, dev);
446 dev->stats.rx_packets++;
447 dev->stats.rx_bytes += pkt_len-4;
453 * This is called to actually send a packet to the chip.
455 static void smc911x_hardware_send_pkt(struct net_device *dev)
457 struct smc911x_local *lp = netdev_priv(dev);
459 unsigned int cmdA, cmdB, len;
463 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __FUNCTION__);
464 BUG_ON(lp->pending_tx_skb == NULL);
466 skb = lp->pending_tx_skb;
467 lp->pending_tx_skb = NULL;
469 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
470 /* cmdB {31:16] pkt tag [10:0] length */
472 /* 16 byte buffer alignment mode */
473 buf = (char*)((u32)(skb->data) & ~0xF);
474 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
475 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
476 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
479 buf = (char*)((u32)skb->data & ~0x3);
480 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
481 cmdA = (((u32)skb->data & 0x3) << 16) |
482 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
485 /* tag is packet length so we can use this in stats update later */
486 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
488 DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
489 dev->name, len, len, buf, cmdA, cmdB);
490 SMC_SET_TX_FIFO(lp, cmdA);
491 SMC_SET_TX_FIFO(lp, cmdB);
493 DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name);
494 PRINT_PKT(buf, len <= 64 ? len : 64);
496 /* Send pkt via PIO or DMA */
498 lp->current_tx_skb = skb;
499 SMC_PUSH_DATA(lp, buf, len);
500 /* DMA complete IRQ will free buffer and set jiffies */
502 SMC_PUSH_DATA(lp, buf, len);
503 dev->trans_start = jiffies;
506 spin_lock_irqsave(&lp->lock, flags);
507 if (!lp->tx_throttle) {
508 netif_wake_queue(dev);
510 spin_unlock_irqrestore(&lp->lock, flags);
511 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
515 * Since I am not sure if I will have enough room in the chip's ram
516 * to store the packet, I call this routine which either sends it
517 * now, or set the card to generates an interrupt when ready
520 static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
522 struct smc911x_local *lp = netdev_priv(dev);
526 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
527 dev->name, __FUNCTION__);
529 BUG_ON(lp->pending_tx_skb != NULL);
531 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
532 DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free);
534 /* Turn off the flow when running out of space in FIFO */
535 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
536 DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n",
538 spin_lock_irqsave(&lp->lock, flags);
539 /* Reenable when at least 1 packet of size MTU present */
540 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
542 netif_stop_queue(dev);
543 spin_unlock_irqrestore(&lp->lock, flags);
546 /* Drop packets when we run out of space in TX FIFO
547 * Account for overhead required for:
549 * Tx command words 8 bytes
550 * Start offset 15 bytes
551 * End padding 15 bytes
553 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
554 printk("%s: No Tx free space %d < %d\n",
555 dev->name, free, skb->len);
556 lp->pending_tx_skb = NULL;
557 dev->stats.tx_errors++;
558 dev->stats.tx_dropped++;
565 /* If the DMA is already running then defer this packet Tx until
566 * the DMA IRQ starts it
568 spin_lock_irqsave(&lp->lock, flags);
569 if (lp->txdma_active) {
570 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name);
571 lp->pending_tx_skb = skb;
572 netif_stop_queue(dev);
573 spin_unlock_irqrestore(&lp->lock, flags);
576 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name);
577 lp->txdma_active = 1;
579 spin_unlock_irqrestore(&lp->lock, flags);
582 lp->pending_tx_skb = skb;
583 smc911x_hardware_send_pkt(dev);
589 * This handles a TX status interrupt, which is only called when:
590 * - a TX error occurred, or
591 * - TX of a packet completed.
593 static void smc911x_tx(struct net_device *dev)
595 struct smc911x_local *lp = netdev_priv(dev);
596 unsigned int tx_status;
598 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
599 dev->name, __FUNCTION__);
601 /* Collect the TX status */
602 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
603 DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n",
605 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
606 tx_status = SMC_GET_TX_STS_FIFO(lp);
607 dev->stats.tx_packets++;
608 dev->stats.tx_bytes+=tx_status>>16;
609 DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
610 dev->name, (tx_status & 0xffff0000) >> 16,
611 tx_status & 0x0000ffff);
612 /* count Tx errors, but ignore lost carrier errors when in
613 * full-duplex mode */
614 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
615 !(tx_status & 0x00000306))) {
616 dev->stats.tx_errors++;
618 if (tx_status & TX_STS_MANY_COLL_) {
619 dev->stats.collisions+=16;
620 dev->stats.tx_aborted_errors++;
622 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
624 /* carrier error only has meaning for half-duplex communication */
625 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
627 dev->stats.tx_carrier_errors++;
629 if (tx_status & TX_STS_LATE_COLL_) {
630 dev->stats.collisions++;
631 dev->stats.tx_aborted_errors++;
637 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
639 * Reads a register from the MII Management serial interface
642 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
644 struct smc911x_local *lp = netdev_priv(dev);
645 unsigned int phydata;
647 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
649 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
650 __FUNCTION__, phyaddr, phyreg, phydata);
656 * Writes a register to the MII Management serial interface
658 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
661 struct smc911x_local *lp = netdev_priv(dev);
663 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
664 __FUNCTION__, phyaddr, phyreg, phydata);
666 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
670 * Finds and reports the PHY address (115 and 117 have external
671 * PHY interface 118 has internal only
673 static void smc911x_phy_detect(struct net_device *dev)
675 struct smc911x_local *lp = netdev_priv(dev);
677 unsigned int cfg, id1, id2;
679 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
684 * Scan all 32 PHY addresses if necessary, starting at
685 * PHY#1 to PHY#31, and then PHY#0 last.
687 switch(lp->version) {
690 cfg = SMC_GET_HW_CFG(lp);
691 if (cfg & HW_CFG_EXT_PHY_DET_) {
692 cfg &= ~HW_CFG_PHY_CLK_SEL_;
693 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
694 SMC_SET_HW_CFG(lp, cfg);
695 udelay(10); /* Wait for clocks to stop */
697 cfg |= HW_CFG_EXT_PHY_EN_;
698 SMC_SET_HW_CFG(lp, cfg);
699 udelay(10); /* Wait for clocks to stop */
701 cfg &= ~HW_CFG_PHY_CLK_SEL_;
702 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
703 SMC_SET_HW_CFG(lp, cfg);
704 udelay(10); /* Wait for clocks to stop */
706 cfg |= HW_CFG_SMI_SEL_;
707 SMC_SET_HW_CFG(lp, cfg);
709 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
711 /* Read the PHY identifiers */
712 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
713 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
715 /* Make sure it is a valid identifier */
716 if (id1 != 0x0000 && id1 != 0xffff &&
717 id1 != 0x8000 && id2 != 0x0000 &&
718 id2 != 0xffff && id2 != 0x8000) {
719 /* Save the PHY's address */
720 lp->mii.phy_id = phyaddr & 31;
721 lp->phy_type = id1 << 16 | id2;
727 /* Internal media only */
728 SMC_GET_PHY_ID1(lp, 1, id1);
729 SMC_GET_PHY_ID2(lp, 1, id2);
730 /* Save the PHY's address */
732 lp->phy_type = id1 << 16 | id2;
735 DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
736 dev->name, id1, id2, lp->mii.phy_id);
740 * Sets the PHY to a configuration as determined by the user.
741 * Called with spin_lock held.
743 static int smc911x_phy_fixed(struct net_device *dev)
745 struct smc911x_local *lp = netdev_priv(dev);
746 int phyaddr = lp->mii.phy_id;
749 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
751 /* Enter Link Disable state */
752 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
754 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
757 * Set our fixed capabilities
758 * Disable auto-negotiation
760 bmcr &= ~BMCR_ANENABLE;
762 bmcr |= BMCR_FULLDPLX;
764 if (lp->ctl_rspeed == 100)
765 bmcr |= BMCR_SPEED100;
767 /* Write our capabilities to the phy control register */
768 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
770 /* Re-Configure the Receive/Phy Control register */
772 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
778 * smc911x_phy_reset - reset the phy
782 * Issue a software reset for the specified PHY and
783 * wait up to 100ms for the reset to complete. We should
784 * not access the PHY for 50ms after issuing the reset.
786 * The time to wait appears to be dependent on the PHY.
789 static int smc911x_phy_reset(struct net_device *dev, int phy)
791 struct smc911x_local *lp = netdev_priv(dev);
796 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __FUNCTION__);
798 spin_lock_irqsave(&lp->lock, flags);
799 reg = SMC_GET_PMT_CTRL(lp);
801 reg |= PMT_CTRL_PHY_RST_;
802 SMC_SET_PMT_CTRL(lp, reg);
803 spin_unlock_irqrestore(&lp->lock, flags);
804 for (timeout = 2; timeout; timeout--) {
806 spin_lock_irqsave(&lp->lock, flags);
807 reg = SMC_GET_PMT_CTRL(lp);
808 spin_unlock_irqrestore(&lp->lock, flags);
809 if (!(reg & PMT_CTRL_PHY_RST_)) {
810 /* extra delay required because the phy may
811 * not be completed with its reset
812 * when PHY_BCR_RESET_ is cleared. 256us
813 * should suffice, but use 500us to be safe
820 return reg & PMT_CTRL_PHY_RST_;
824 * smc911x_phy_powerdown - powerdown phy
828 * Power down the specified PHY
830 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
832 struct smc911x_local *lp = netdev_priv(dev);
835 /* Enter Link Disable state */
836 SMC_GET_PHY_BMCR(lp, phy, bmcr);
838 SMC_SET_PHY_BMCR(lp, phy, bmcr);
842 * smc911x_phy_check_media - check the media status and adjust BMCR
844 * @init: set true for initialisation
846 * Select duplex mode depending on negotiation state. This
847 * also updates our carrier state.
849 static void smc911x_phy_check_media(struct net_device *dev, int init)
851 struct smc911x_local *lp = netdev_priv(dev);
852 int phyaddr = lp->mii.phy_id;
853 unsigned int bmcr, cr;
855 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
857 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
858 /* duplex state has changed */
859 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
860 SMC_GET_MAC_CR(lp, cr);
861 if (lp->mii.full_duplex) {
862 DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name);
863 bmcr |= BMCR_FULLDPLX;
864 cr |= MAC_CR_RCVOWN_;
866 DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name);
867 bmcr &= ~BMCR_FULLDPLX;
868 cr &= ~MAC_CR_RCVOWN_;
870 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
871 SMC_SET_MAC_CR(lp, cr);
876 * Configures the specified PHY through the MII management interface
877 * using Autonegotiation.
878 * Calls smc911x_phy_fixed() if the user has requested a certain config.
879 * If RPC ANEG bit is set, the media selection is dependent purely on
880 * the selection by the MII (either in the MII BMCR reg or the result
881 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
882 * is controlled by the RPC SPEED and RPC DPLX bits.
884 static void smc911x_phy_configure(struct work_struct *work)
886 struct smc911x_local *lp = container_of(work, struct smc911x_local,
888 struct net_device *dev = lp->netdev;
889 int phyaddr = lp->mii.phy_id;
890 int my_phy_caps; /* My PHY capabilities */
891 int my_ad_caps; /* My Advertised capabilities */
895 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __FUNCTION__);
898 * We should not be called if phy_type is zero.
900 if (lp->phy_type == 0)
901 goto smc911x_phy_configure_exit_nolock;
903 if (smc911x_phy_reset(dev, phyaddr)) {
904 printk("%s: PHY reset timed out\n", dev->name);
905 goto smc911x_phy_configure_exit_nolock;
907 spin_lock_irqsave(&lp->lock, flags);
910 * Enable PHY Interrupts (for register 18)
911 * Interrupts listed here are enabled
913 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
914 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
915 PHY_INT_MASK_LINK_DOWN_);
917 /* If the user requested no auto neg, then go set his request */
918 if (lp->mii.force_media) {
919 smc911x_phy_fixed(dev);
920 goto smc911x_phy_configure_exit;
923 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
924 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
925 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
926 printk(KERN_INFO "Auto negotiation NOT supported\n");
927 smc911x_phy_fixed(dev);
928 goto smc911x_phy_configure_exit;
931 /* CSMA capable w/ both pauses */
932 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
934 if (my_phy_caps & BMSR_100BASE4)
935 my_ad_caps |= ADVERTISE_100BASE4;
936 if (my_phy_caps & BMSR_100FULL)
937 my_ad_caps |= ADVERTISE_100FULL;
938 if (my_phy_caps & BMSR_100HALF)
939 my_ad_caps |= ADVERTISE_100HALF;
940 if (my_phy_caps & BMSR_10FULL)
941 my_ad_caps |= ADVERTISE_10FULL;
942 if (my_phy_caps & BMSR_10HALF)
943 my_ad_caps |= ADVERTISE_10HALF;
945 /* Disable capabilities not selected by our user */
946 if (lp->ctl_rspeed != 100)
947 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
949 if (!lp->ctl_rfduplx)
950 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
952 /* Update our Auto-Neg Advertisement Register */
953 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
954 lp->mii.advertising = my_ad_caps;
957 * Read the register back. Without this, it appears that when
958 * auto-negotiation is restarted, sometimes it isn't ready and
959 * the link does not come up.
962 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
964 DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps);
965 DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps);
967 /* Restart auto-negotiation process in order to advertise my caps */
968 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
970 smc911x_phy_check_media(dev, 1);
972 smc911x_phy_configure_exit:
973 spin_unlock_irqrestore(&lp->lock, flags);
974 smc911x_phy_configure_exit_nolock:
975 lp->work_pending = 0;
979 * smc911x_phy_interrupt
981 * Purpose: Handle interrupts relating to PHY register 18. This is
982 * called from the "hard" interrupt handler under our private spinlock.
984 static void smc911x_phy_interrupt(struct net_device *dev)
986 struct smc911x_local *lp = netdev_priv(dev);
987 int phyaddr = lp->mii.phy_id;
990 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
992 if (lp->phy_type == 0)
995 smc911x_phy_check_media(dev, 0);
996 /* read to clear status bits */
997 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
998 DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
999 dev->name, status & 0xffff);
1000 DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
1001 dev->name, SMC_GET_AFC_CFG(lp));
1004 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1007 * This is the main routine of the driver, to handle the device when
1008 * it needs some attention.
1010 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1012 struct net_device *dev = dev_id;
1013 struct smc911x_local *lp = netdev_priv(dev);
1014 unsigned int status, mask, timeout;
1015 unsigned int rx_overrun=0, cr, pkts;
1016 unsigned long flags;
1018 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1020 spin_lock_irqsave(&lp->lock, flags);
1022 /* Spurious interrupt check */
1023 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1024 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1025 spin_unlock_irqrestore(&lp->lock, flags);
1029 mask = SMC_GET_INT_EN(lp);
1030 SMC_SET_INT_EN(lp, 0);
1032 /* set a timeout value, so I don't stay here forever */
1037 status = SMC_GET_INT(lp);
1039 DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1040 dev->name, status, mask, status & ~mask);
1046 /* Handle SW interrupt condition */
1047 if (status & INT_STS_SW_INT_) {
1048 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1049 mask &= ~INT_EN_SW_INT_EN_;
1051 /* Handle various error conditions */
1052 if (status & INT_STS_RXE_) {
1053 SMC_ACK_INT(lp, INT_STS_RXE_);
1054 dev->stats.rx_errors++;
1056 if (status & INT_STS_RXDFH_INT_) {
1057 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1058 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1060 /* Undocumented interrupt-what is the right thing to do here? */
1061 if (status & INT_STS_RXDF_INT_) {
1062 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1065 /* Rx Data FIFO exceeds set level */
1066 if (status & INT_STS_RDFL_) {
1067 if (IS_REV_A(lp->revision)) {
1069 SMC_GET_MAC_CR(lp, cr);
1070 cr &= ~MAC_CR_RXEN_;
1071 SMC_SET_MAC_CR(lp, cr);
1072 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1073 dev->stats.rx_errors++;
1074 dev->stats.rx_fifo_errors++;
1076 SMC_ACK_INT(lp, INT_STS_RDFL_);
1078 if (status & INT_STS_RDFO_) {
1079 if (!IS_REV_A(lp->revision)) {
1080 SMC_GET_MAC_CR(lp, cr);
1081 cr &= ~MAC_CR_RXEN_;
1082 SMC_SET_MAC_CR(lp, cr);
1084 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1085 dev->stats.rx_errors++;
1086 dev->stats.rx_fifo_errors++;
1088 SMC_ACK_INT(lp, INT_STS_RDFO_);
1090 /* Handle receive condition */
1091 if ((status & INT_STS_RSFL_) || rx_overrun) {
1093 DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
1094 fifo = SMC_GET_RX_FIFO_INF(lp);
1095 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1096 DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
1097 dev->name, pkts, fifo & 0xFFFF );
1101 if (lp->rxdma_active){
1102 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1103 "%s: RX DMA active\n", dev->name);
1104 /* The DMA is already running so up the IRQ threshold */
1105 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1106 fifo |= pkts & 0xFF;
1108 "%s: Setting RX stat FIFO threshold to %d\n",
1109 dev->name, fifo & 0xff);
1110 SMC_SET_FIFO_INT(lp, fifo);
1115 SMC_ACK_INT(lp, INT_STS_RSFL_);
1117 /* Handle transmit FIFO available */
1118 if (status & INT_STS_TDFA_) {
1119 DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
1120 SMC_SET_FIFO_TDA(lp, 0xFF);
1121 lp->tx_throttle = 0;
1123 if (!lp->txdma_active)
1125 netif_wake_queue(dev);
1126 SMC_ACK_INT(lp, INT_STS_TDFA_);
1128 /* Handle transmit done condition */
1130 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1131 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
1132 "%s: Tx stat FIFO limit (%d) /GPT irq\n",
1133 dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1135 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1136 SMC_ACK_INT(lp, INT_STS_TSFL_);
1137 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1140 if (status & INT_STS_TSFL_) {
1141 DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq \n", dev->name, );
1143 SMC_ACK_INT(lp, INT_STS_TSFL_);
1146 if (status & INT_STS_GPT_INT_) {
1147 DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1149 SMC_GET_IRQ_CFG(lp),
1150 SMC_GET_FIFO_INT(lp),
1151 SMC_GET_RX_CFG(lp));
1152 DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
1153 "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1155 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1156 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1157 SMC_GET_RX_STS_FIFO_PEEK(lp));
1158 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1159 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1163 /* Handle PHY interrupt condition */
1164 if (status & INT_STS_PHY_INT_) {
1165 DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
1166 smc911x_phy_interrupt(dev);
1167 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1169 } while (--timeout);
1171 /* restore mask state */
1172 SMC_SET_INT_EN(lp, mask);
1174 DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
1175 dev->name, 8-timeout);
1177 spin_unlock_irqrestore(&lp->lock, flags);
1179 DBG(3, "%s: Interrupt done (%d loops)\n", dev->name, 8-timeout);
1186 smc911x_tx_dma_irq(int dma, void *data)
1188 struct net_device *dev = (struct net_device *)data;
1189 struct smc911x_local *lp = netdev_priv(dev);
1190 struct sk_buff *skb = lp->current_tx_skb;
1191 unsigned long flags;
1193 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1195 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
1196 /* Clear the DMA interrupt sources */
1197 SMC_DMA_ACK_IRQ(dev, dma);
1198 BUG_ON(skb == NULL);
1199 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1200 dev->trans_start = jiffies;
1201 dev_kfree_skb_irq(skb);
1202 lp->current_tx_skb = NULL;
1203 if (lp->pending_tx_skb != NULL)
1204 smc911x_hardware_send_pkt(dev);
1206 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1207 "%s: No pending Tx packets. DMA disabled\n", dev->name);
1208 spin_lock_irqsave(&lp->lock, flags);
1209 lp->txdma_active = 0;
1210 if (!lp->tx_throttle) {
1211 netif_wake_queue(dev);
1213 spin_unlock_irqrestore(&lp->lock, flags);
1216 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1217 "%s: TX DMA irq completed\n", dev->name);
1220 smc911x_rx_dma_irq(int dma, void *data)
1222 struct net_device *dev = (struct net_device *)data;
1223 unsigned long ioaddr = dev->base_addr;
1224 struct smc911x_local *lp = netdev_priv(dev);
1225 struct sk_buff *skb = lp->current_rx_skb;
1226 unsigned long flags;
1229 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1230 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
1231 /* Clear the DMA interrupt sources */
1232 SMC_DMA_ACK_IRQ(dev, dma);
1233 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1234 BUG_ON(skb == NULL);
1235 lp->current_rx_skb = NULL;
1236 PRINT_PKT(skb->data, skb->len);
1237 dev->last_rx = jiffies;
1238 skb->protocol = eth_type_trans(skb, dev);
1239 dev->stats.rx_packets++;
1240 dev->stats.rx_bytes += skb->len;
1243 spin_lock_irqsave(&lp->lock, flags);
1244 pkts = (SMC_GET_RX_FIFO_INF() & RX_FIFO_INF_RXSUSED_) >> 16;
1248 lp->rxdma_active = 0;
1250 spin_unlock_irqrestore(&lp->lock, flags);
1251 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1252 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1255 #endif /* SMC_USE_DMA */
1257 #ifdef CONFIG_NET_POLL_CONTROLLER
1259 * Polling receive - used by netconsole and other diagnostic tools
1260 * to allow network i/o with interrupts disabled.
1262 static void smc911x_poll_controller(struct net_device *dev)
1264 disable_irq(dev->irq);
1265 smc911x_interrupt(dev->irq, dev);
1266 enable_irq(dev->irq);
1270 /* Our watchdog timed out. Called by the networking layer */
1271 static void smc911x_timeout(struct net_device *dev)
1273 struct smc911x_local *lp = netdev_priv(dev);
1275 unsigned long flags;
1277 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1279 spin_lock_irqsave(&lp->lock, flags);
1280 status = SMC_GET_INT(lp);
1281 mask = SMC_GET_INT_EN(lp);
1282 spin_unlock_irqrestore(&lp->lock, flags);
1283 DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x \n",
1284 dev->name, status, mask);
1286 /* Dump the current TX FIFO contents and restart */
1287 mask = SMC_GET_TX_CFG(lp);
1288 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1290 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1291 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1292 * which calls schedule(). Hence we use a work queue.
1294 if (lp->phy_type != 0) {
1295 if (schedule_work(&lp->phy_configure)) {
1296 lp->work_pending = 1;
1300 /* We can accept TX packets again */
1301 dev->trans_start = jiffies;
1302 netif_wake_queue(dev);
1306 * This routine will, depending on the values passed to it,
1307 * either make it accept multicast packets, go into
1308 * promiscuous mode (for TCPDUMP and cousins) or accept
1309 * a select set of multicast packets
1311 static void smc911x_set_multicast_list(struct net_device *dev)
1313 struct smc911x_local *lp = netdev_priv(dev);
1314 unsigned int multicast_table[2];
1315 unsigned int mcr, update_multicast = 0;
1316 unsigned long flags;
1318 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1320 spin_lock_irqsave(&lp->lock, flags);
1321 SMC_GET_MAC_CR(lp, mcr);
1322 spin_unlock_irqrestore(&lp->lock, flags);
1324 if (dev->flags & IFF_PROMISC) {
1326 DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
1327 mcr |= MAC_CR_PRMS_;
1330 * Here, I am setting this to accept all multicast packets.
1331 * I don't need to zero the multicast table, because the flag is
1332 * checked before the table is
1334 else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
1335 DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
1336 mcr |= MAC_CR_MCPAS_;
1340 * This sets the internal hardware table to filter out unwanted
1341 * multicast packets before they take up memory.
1343 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1344 * address are the offset into the table. If that bit is 1, then the
1345 * multicast packet is accepted. Otherwise, it's dropped silently.
1347 * To use the 6 bits as an offset into the table, the high 1 bit is
1348 * the number of the 32 bit register, while the low 5 bits are the bit
1349 * within that register.
1351 else if (dev->mc_count) {
1353 struct dev_mc_list *cur_addr;
1355 /* Set the Hash perfec mode */
1356 mcr |= MAC_CR_HPFILT_;
1358 /* start with a table of all zeros: reject all */
1359 memset(multicast_table, 0, sizeof(multicast_table));
1361 cur_addr = dev->mc_list;
1362 for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) {
1365 /* do we have a pointer here? */
1368 /* make sure this is a multicast address -
1369 shouldn't this be a given if we have it here ? */
1370 if (!(*cur_addr->dmi_addr & 1))
1373 /* upper 6 bits are used as hash index */
1374 position = ether_crc(ETH_ALEN, cur_addr->dmi_addr)>>26;
1376 multicast_table[position>>5] |= 1 << (position&0x1f);
1379 /* be sure I get rid of flags I might have set */
1380 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1382 /* now, the table can be loaded into the chipset */
1383 update_multicast = 1;
1385 DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1387 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1390 * since I'm disabling all multicast entirely, I need to
1391 * clear the multicast list
1393 memset(multicast_table, 0, sizeof(multicast_table));
1394 update_multicast = 1;
1397 spin_lock_irqsave(&lp->lock, flags);
1398 SMC_SET_MAC_CR(lp, mcr);
1399 if (update_multicast) {
1401 "%s: update mcast hash table 0x%08x 0x%08x\n",
1402 dev->name, multicast_table[0], multicast_table[1]);
1403 SMC_SET_HASHL(lp, multicast_table[0]);
1404 SMC_SET_HASHH(lp, multicast_table[1]);
1406 spin_unlock_irqrestore(&lp->lock, flags);
1411 * Open and Initialize the board
1413 * Set up everything, reset the card, etc..
1416 smc911x_open(struct net_device *dev)
1418 struct smc911x_local *lp = netdev_priv(dev);
1420 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1423 * Check that the address is valid. If its not, refuse
1424 * to bring the device up. The user must specify an
1425 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1427 if (!is_valid_ether_addr(dev->dev_addr)) {
1428 PRINTK("%s: no valid ethernet hw addr\n", __FUNCTION__);
1432 /* reset the hardware */
1435 /* Configure the PHY, initialize the link state */
1436 smc911x_phy_configure(&lp->phy_configure);
1438 /* Turn on Tx + Rx */
1439 smc911x_enable(dev);
1441 netif_start_queue(dev);
1449 * this makes the board clean up everything that it can
1450 * and not talk to the outside world. Caused by
1451 * an 'ifconfig ethX down'
1453 static int smc911x_close(struct net_device *dev)
1455 struct smc911x_local *lp = netdev_priv(dev);
1457 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1459 netif_stop_queue(dev);
1460 netif_carrier_off(dev);
1462 /* clear everything */
1463 smc911x_shutdown(dev);
1465 if (lp->phy_type != 0) {
1466 /* We need to ensure that no calls to
1467 * smc911x_phy_configure are pending.
1469 * flush_scheduled_work() cannot be called because we
1470 * are running with the netlink semaphore held (from
1471 * devinet_ioctl()) and the pending work queue
1472 * contains linkwatch_event() (scheduled by
1473 * netif_carrier_off() above). linkwatch_event() also
1474 * wants the netlink semaphore.
1476 while (lp->work_pending)
1478 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1481 if (lp->pending_tx_skb) {
1482 dev_kfree_skb(lp->pending_tx_skb);
1483 lp->pending_tx_skb = NULL;
1493 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1495 struct smc911x_local *lp = netdev_priv(dev);
1497 unsigned long flags;
1499 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1503 if (lp->phy_type != 0) {
1504 spin_lock_irqsave(&lp->lock, flags);
1505 ret = mii_ethtool_gset(&lp->mii, cmd);
1506 spin_unlock_irqrestore(&lp->lock, flags);
1508 cmd->supported = SUPPORTED_10baseT_Half |
1509 SUPPORTED_10baseT_Full |
1510 SUPPORTED_TP | SUPPORTED_AUI;
1512 if (lp->ctl_rspeed == 10)
1513 cmd->speed = SPEED_10;
1514 else if (lp->ctl_rspeed == 100)
1515 cmd->speed = SPEED_100;
1517 cmd->autoneg = AUTONEG_DISABLE;
1518 if (lp->mii.phy_id==1)
1519 cmd->transceiver = XCVR_INTERNAL;
1521 cmd->transceiver = XCVR_EXTERNAL;
1523 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1525 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1526 DUPLEX_FULL : DUPLEX_HALF;
1534 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1536 struct smc911x_local *lp = netdev_priv(dev);
1538 unsigned long flags;
1540 if (lp->phy_type != 0) {
1541 spin_lock_irqsave(&lp->lock, flags);
1542 ret = mii_ethtool_sset(&lp->mii, cmd);
1543 spin_unlock_irqrestore(&lp->lock, flags);
1545 if (cmd->autoneg != AUTONEG_DISABLE ||
1546 cmd->speed != SPEED_10 ||
1547 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1548 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1551 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1560 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1562 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1563 strncpy(info->version, version, sizeof(info->version));
1564 strncpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info));
1567 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1569 struct smc911x_local *lp = netdev_priv(dev);
1571 unsigned long flags;
1573 if (lp->phy_type != 0) {
1574 spin_lock_irqsave(&lp->lock, flags);
1575 ret = mii_nway_restart(&lp->mii);
1576 spin_unlock_irqrestore(&lp->lock, flags);
1582 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1584 struct smc911x_local *lp = netdev_priv(dev);
1585 return lp->msg_enable;
1588 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1590 struct smc911x_local *lp = netdev_priv(dev);
1591 lp->msg_enable = level;
1594 static int smc911x_ethtool_getregslen(struct net_device *dev)
1596 /* System regs + MAC regs + PHY regs */
1597 return (((E2P_CMD - ID_REV)/4 + 1) +
1598 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1601 static void smc911x_ethtool_getregs(struct net_device *dev,
1602 struct ethtool_regs* regs, void *buf)
1604 struct smc911x_local *lp = netdev_priv(dev);
1605 unsigned long flags;
1607 u32 *data = (u32*)buf;
1609 regs->version = lp->version;
1610 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1611 data[j++] = SMC_inl(lp, i);
1613 for(i=MAC_CR;i<=WUCSR;i++) {
1614 spin_lock_irqsave(&lp->lock, flags);
1615 SMC_GET_MAC_CSR(lp, i, reg);
1616 spin_unlock_irqrestore(&lp->lock, flags);
1619 for(i=0;i<=31;i++) {
1620 spin_lock_irqsave(&lp->lock, flags);
1621 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1622 spin_unlock_irqrestore(&lp->lock, flags);
1623 data[j++] = reg & 0xFFFF;
1627 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1629 struct smc911x_local *lp = netdev_priv(dev);
1630 unsigned int timeout;
1633 e2p_cmd = SMC_GET_E2P_CMD(lp);
1634 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1635 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1636 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1637 dev->name, __FUNCTION__);
1641 e2p_cmd = SMC_GET_E2P_CMD(lp);
1644 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1645 dev->name, __FUNCTION__);
1651 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1654 struct smc911x_local *lp = netdev_priv(dev);
1657 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1659 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1660 ((cmd) & (0x7<<28)) |
1665 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1668 struct smc911x_local *lp = netdev_priv(dev);
1671 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1673 *data = SMC_GET_E2P_DATA(lp);
1677 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1680 struct smc911x_local *lp = netdev_priv(dev);
1683 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1685 SMC_SET_E2P_DATA(lp, data);
1689 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1690 struct ethtool_eeprom *eeprom, u8 *data)
1692 u8 eebuf[SMC911X_EEPROM_LEN];
1695 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1696 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1698 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1701 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1705 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1706 struct ethtool_eeprom *eeprom, u8 *data)
1711 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1713 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1715 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1718 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1720 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1726 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1728 return SMC911X_EEPROM_LEN;
1731 static const struct ethtool_ops smc911x_ethtool_ops = {
1732 .get_settings = smc911x_ethtool_getsettings,
1733 .set_settings = smc911x_ethtool_setsettings,
1734 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1735 .get_msglevel = smc911x_ethtool_getmsglevel,
1736 .set_msglevel = smc911x_ethtool_setmsglevel,
1737 .nway_reset = smc911x_ethtool_nwayreset,
1738 .get_link = ethtool_op_get_link,
1739 .get_regs_len = smc911x_ethtool_getregslen,
1740 .get_regs = smc911x_ethtool_getregs,
1741 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1742 .get_eeprom = smc911x_ethtool_geteeprom,
1743 .set_eeprom = smc911x_ethtool_seteeprom,
1749 * This routine has a simple purpose -- make the SMC chip generate an
1750 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1752 static int __init smc911x_findirq(struct net_device *dev)
1754 struct smc911x_local *lp = netdev_priv(dev);
1756 unsigned long cookie;
1758 DBG(SMC_DEBUG_FUNC, "--> %s\n", __FUNCTION__);
1760 cookie = probe_irq_on();
1763 * Force a SW interrupt
1766 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1769 * Wait until positive that the interrupt has been generated
1774 int_status = SMC_GET_INT_EN(lp);
1775 if (int_status & INT_EN_SW_INT_EN_)
1776 break; /* got the interrupt */
1777 } while (--timeout);
1780 * there is really nothing that I can do here if timeout fails,
1781 * as autoirq_report will return a 0 anyway, which is what I
1782 * want in this case. Plus, the clean up is needed in both
1786 /* and disable all interrupts again */
1787 SMC_SET_INT_EN(lp, 0);
1789 /* and return what I found */
1790 return probe_irq_off(cookie);
1794 * Function: smc911x_probe(unsigned long ioaddr)
1797 * Tests to see if a given ioaddr points to an SMC911x chip.
1798 * Returns a 0 on success
1801 * (1) see if the endian word is OK
1802 * (1) see if I recognize the chip ID in the appropriate register
1804 * Here I do typical initialization tasks.
1806 * o Initialize the structure if needed
1807 * o print out my vanity message if not done so already
1808 * o print out what type of hardware is detected
1809 * o print out the ethernet address
1811 * o set up my private data
1812 * o configure the dev structure with my subroutines
1813 * o actually GRAB the irq.
1816 static int __init smc911x_probe(struct net_device *dev)
1818 struct smc911x_local *lp = netdev_priv(dev);
1820 unsigned int val, chip_id, revision;
1821 const char *version_string;
1822 unsigned long irq_flags;
1824 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__);
1826 /* First, see if the endian word is recognized */
1827 val = SMC_GET_BYTE_TEST(lp);
1828 DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
1829 if (val != 0x87654321) {
1830 printk(KERN_ERR "Invalid chip endian 0x08%x\n",val);
1836 * check if the revision register is something that I
1837 * recognize. These might need to be added to later,
1838 * as future revisions could be added.
1840 chip_id = SMC_GET_PN(lp);
1841 DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
1842 for(i=0;chip_ids[i].id != 0; i++) {
1843 if (chip_ids[i].id == chip_id) break;
1845 if (!chip_ids[i].id) {
1846 printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
1850 version_string = chip_ids[i].name;
1852 revision = SMC_GET_REV(lp);
1853 DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
1855 /* At this point I'll assume that the chip is an SMC911x. */
1856 DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
1858 /* Validate the TX FIFO size requested */
1859 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1860 printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
1865 /* fill in some of the fields */
1866 lp->version = chip_ids[i].id;
1867 lp->revision = revision;
1868 lp->tx_fifo_kb = tx_fifo_kb;
1869 /* Reverse calculate the RX FIFO size from the TX */
1870 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1871 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1873 /* Set the automatic flow control values */
1874 switch(lp->tx_fifo_kb) {
1876 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1877 * AFC_LO is AFC_HI/2
1878 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1880 case 2:/* 13440 Rx Data Fifo Size */
1881 lp->afc_cfg=0x008C46AF;break;
1882 case 3:/* 12480 Rx Data Fifo Size */
1883 lp->afc_cfg=0x0082419F;break;
1884 case 4:/* 11520 Rx Data Fifo Size */
1885 lp->afc_cfg=0x00783C9F;break;
1886 case 5:/* 10560 Rx Data Fifo Size */
1887 lp->afc_cfg=0x006E374F;break;
1888 case 6:/* 9600 Rx Data Fifo Size */
1889 lp->afc_cfg=0x0064328F;break;
1890 case 7:/* 8640 Rx Data Fifo Size */
1891 lp->afc_cfg=0x005A2D7F;break;
1892 case 8:/* 7680 Rx Data Fifo Size */
1893 lp->afc_cfg=0x0050287F;break;
1894 case 9:/* 6720 Rx Data Fifo Size */
1895 lp->afc_cfg=0x0046236F;break;
1896 case 10:/* 5760 Rx Data Fifo Size */
1897 lp->afc_cfg=0x003C1E6F;break;
1898 case 11:/* 4800 Rx Data Fifo Size */
1899 lp->afc_cfg=0x0032195F;break;
1901 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1902 * AFC_LO is AFC_HI/2
1903 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1905 case 12:/* 3840 Rx Data Fifo Size */
1906 lp->afc_cfg=0x0024124F;break;
1907 case 13:/* 2880 Rx Data Fifo Size */
1908 lp->afc_cfg=0x0015073F;break;
1909 case 14:/* 1920 Rx Data Fifo Size */
1910 lp->afc_cfg=0x0006032F;break;
1912 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1917 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
1918 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1919 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1921 spin_lock_init(&lp->lock);
1923 /* Get the MAC address */
1924 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1926 /* now, reset the chip, and put it into a known state */
1930 * If dev->irq is 0, then the device has to be banged on to see
1933 * Specifying an IRQ is done with the assumption that the user knows
1934 * what (s)he is doing. No checking is done!!!!
1941 dev->irq = smc911x_findirq(dev);
1944 /* kick the card and try again */
1948 if (dev->irq == 0) {
1949 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1954 dev->irq = irq_canonicalize(dev->irq);
1956 /* Fill in the fields of the device structure with ethernet values. */
1959 dev->open = smc911x_open;
1960 dev->stop = smc911x_close;
1961 dev->hard_start_xmit = smc911x_hard_start_xmit;
1962 dev->tx_timeout = smc911x_timeout;
1963 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1964 dev->set_multicast_list = smc911x_set_multicast_list;
1965 dev->ethtool_ops = &smc911x_ethtool_ops;
1966 #ifdef CONFIG_NET_POLL_CONTROLLER
1967 dev->poll_controller = smc911x_poll_controller;
1970 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1971 lp->mii.phy_id_mask = 0x1f;
1972 lp->mii.reg_num_mask = 0x1f;
1973 lp->mii.force_media = 0;
1974 lp->mii.full_duplex = 0;
1976 lp->mii.mdio_read = smc911x_phy_read;
1977 lp->mii.mdio_write = smc911x_phy_write;
1980 * Locate the phy, if any.
1982 smc911x_phy_detect(dev);
1984 /* Set default parameters */
1985 lp->msg_enable = NETIF_MSG_LINK;
1986 lp->ctl_rfduplx = 1;
1987 lp->ctl_rspeed = 100;
1989 #ifdef SMC_DYNAMIC_BUS_CONFIG
1990 irq_flags = lp->cfg.irq_flags;
1992 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1996 retval = request_irq(dev->irq, &smc911x_interrupt,
1997 irq_flags, dev->name, dev);
2002 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
2003 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
2004 lp->rxdma_active = 0;
2005 lp->txdma_active = 0;
2006 dev->dma = lp->rxdma;
2009 retval = register_netdev(dev);
2011 /* now, print out the card info, in a short format.. */
2012 printk("%s: %s (rev %d) at %#lx IRQ %d",
2013 dev->name, version_string, lp->revision,
2014 dev->base_addr, dev->irq);
2017 if (lp->rxdma != -1)
2018 printk(" RXDMA %d ", lp->rxdma);
2020 if (lp->txdma != -1)
2021 printk("TXDMA %d", lp->txdma);
2024 if (!is_valid_ether_addr(dev->dev_addr)) {
2025 printk("%s: Invalid ethernet MAC address. Please "
2026 "set using ifconfig\n", dev->name);
2028 /* Print the Ethernet address */
2029 printk("%s: Ethernet addr: ", dev->name);
2030 for (i = 0; i < 5; i++)
2031 printk("%2.2x:", dev->dev_addr[i]);
2032 printk("%2.2x\n", dev->dev_addr[5]);
2035 if (lp->phy_type == 0) {
2036 PRINTK("%s: No PHY found\n", dev->name);
2037 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2038 PRINTK("%s: LAN911x Internal PHY\n", dev->name);
2040 PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
2047 if (lp->rxdma != -1) {
2048 SMC_DMA_FREE(dev, lp->rxdma);
2050 if (lp->txdma != -1) {
2051 SMC_DMA_FREE(dev, lp->txdma);
2059 * smc911x_init(void)
2062 * 0 --> there is a device
2063 * anything else, error
2065 static int smc911x_drv_probe(struct platform_device *pdev)
2067 struct smc91x_platdata *pd = pdev->dev.platform_data;
2068 struct net_device *ndev;
2069 struct resource *res;
2070 struct smc911x_local *lp;
2074 DBG(SMC_DEBUG_FUNC, "--> %s\n", __FUNCTION__);
2075 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2082 * Request the regions.
2084 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2089 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2091 printk("%s: could not allocate device.\n", CARDNAME);
2095 SET_NETDEV_DEV(ndev, &pdev->dev);
2097 ndev->dma = (unsigned char)-1;
2098 ndev->irq = platform_get_irq(pdev, 0);
2099 lp = netdev_priv(ndev);
2101 #ifdef SMC_DYNAMIC_BUS_CONFIG
2106 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2109 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2115 platform_set_drvdata(pdev, ndev);
2117 ndev->base_addr = res->start;
2118 ret = smc911x_probe(ndev);
2120 platform_set_drvdata(pdev, NULL);
2125 release_mem_region(res->start, SMC911X_IO_EXTENT);
2127 printk("%s: not found (%d).\n", CARDNAME, ret);
2131 lp->physaddr = res->start;
2132 lp->dev = &pdev->dev;
2139 static int smc911x_drv_remove(struct platform_device *pdev)
2141 struct net_device *ndev = platform_get_drvdata(pdev);
2142 struct smc911x_local *lp = netdev_priv(ndev);
2143 struct resource *res;
2145 DBG(SMC_DEBUG_FUNC, "--> %s\n", __FUNCTION__);
2146 platform_set_drvdata(pdev, NULL);
2148 unregister_netdev(ndev);
2150 free_irq(ndev->irq, ndev);
2154 if (lp->rxdma != -1) {
2155 SMC_DMA_FREE(dev, lp->rxdma);
2157 if (lp->txdma != -1) {
2158 SMC_DMA_FREE(dev, lp->txdma);
2163 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2164 release_mem_region(res->start, SMC911X_IO_EXTENT);
2170 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2172 struct net_device *ndev = platform_get_drvdata(dev);
2173 struct smc911x_local *lp = netdev_priv(ndev);
2175 DBG(SMC_DEBUG_FUNC, "--> %s\n", __FUNCTION__);
2177 if (netif_running(ndev)) {
2178 netif_device_detach(ndev);
2179 smc911x_shutdown(ndev);
2181 /* Set D2 - Energy detect only setting */
2182 SMC_SET_PMT_CTRL(lp, 2<<12);
2189 static int smc911x_drv_resume(struct platform_device *dev)
2191 struct net_device *ndev = platform_get_drvdata(dev);
2193 DBG(SMC_DEBUG_FUNC, "--> %s\n", __FUNCTION__);
2195 struct smc911x_local *lp = netdev_priv(ndev);
2197 if (netif_running(ndev)) {
2198 smc911x_reset(ndev);
2199 smc911x_enable(ndev);
2200 if (lp->phy_type != 0)
2201 smc911x_phy_configure(&lp->phy_configure);
2202 netif_device_attach(ndev);
2208 static struct platform_driver smc911x_driver = {
2209 .probe = smc911x_drv_probe,
2210 .remove = smc911x_drv_remove,
2211 .suspend = smc911x_drv_suspend,
2212 .resume = smc911x_drv_resume,
2215 .owner = THIS_MODULE,
2219 static int __init smc911x_init(void)
2221 return platform_driver_register(&smc911x_driver);
2224 static void __exit smc911x_cleanup(void)
2226 platform_driver_unregister(&smc911x_driver);
2229 module_init(smc911x_init);
2230 module_exit(smc911x_cleanup);