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, __func__);
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, __func__);
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, __func__);
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, __func__);
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, __func__);
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, __func__);
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, __func__);
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, __func__);
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 __func__, 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 __func__, 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, __func__);
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, __func__);
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, __func__);
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, __func__);
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, __func__);
898 * We should not be called if phy_type is zero.
900 if (lp->phy_type == 0)
903 if (smc911x_phy_reset(dev, phyaddr)) {
904 printk("%s: PHY reset timed out\n", dev->name);
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);
977 * smc911x_phy_interrupt
979 * Purpose: Handle interrupts relating to PHY register 18. This is
980 * called from the "hard" interrupt handler under our private spinlock.
982 static void smc911x_phy_interrupt(struct net_device *dev)
984 struct smc911x_local *lp = netdev_priv(dev);
985 int phyaddr = lp->mii.phy_id;
988 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
990 if (lp->phy_type == 0)
993 smc911x_phy_check_media(dev, 0);
994 /* read to clear status bits */
995 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
996 DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
997 dev->name, status & 0xffff);
998 DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
999 dev->name, SMC_GET_AFC_CFG(lp));
1002 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1005 * This is the main routine of the driver, to handle the device when
1006 * it needs some attention.
1008 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1010 struct net_device *dev = dev_id;
1011 struct smc911x_local *lp = netdev_priv(dev);
1012 unsigned int status, mask, timeout;
1013 unsigned int rx_overrun=0, cr, pkts;
1014 unsigned long flags;
1016 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1018 spin_lock_irqsave(&lp->lock, flags);
1020 /* Spurious interrupt check */
1021 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1022 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1023 spin_unlock_irqrestore(&lp->lock, flags);
1027 mask = SMC_GET_INT_EN(lp);
1028 SMC_SET_INT_EN(lp, 0);
1030 /* set a timeout value, so I don't stay here forever */
1035 status = SMC_GET_INT(lp);
1037 DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1038 dev->name, status, mask, status & ~mask);
1044 /* Handle SW interrupt condition */
1045 if (status & INT_STS_SW_INT_) {
1046 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1047 mask &= ~INT_EN_SW_INT_EN_;
1049 /* Handle various error conditions */
1050 if (status & INT_STS_RXE_) {
1051 SMC_ACK_INT(lp, INT_STS_RXE_);
1052 dev->stats.rx_errors++;
1054 if (status & INT_STS_RXDFH_INT_) {
1055 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1056 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1058 /* Undocumented interrupt-what is the right thing to do here? */
1059 if (status & INT_STS_RXDF_INT_) {
1060 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1063 /* Rx Data FIFO exceeds set level */
1064 if (status & INT_STS_RDFL_) {
1065 if (IS_REV_A(lp->revision)) {
1067 SMC_GET_MAC_CR(lp, cr);
1068 cr &= ~MAC_CR_RXEN_;
1069 SMC_SET_MAC_CR(lp, cr);
1070 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1071 dev->stats.rx_errors++;
1072 dev->stats.rx_fifo_errors++;
1074 SMC_ACK_INT(lp, INT_STS_RDFL_);
1076 if (status & INT_STS_RDFO_) {
1077 if (!IS_REV_A(lp->revision)) {
1078 SMC_GET_MAC_CR(lp, cr);
1079 cr &= ~MAC_CR_RXEN_;
1080 SMC_SET_MAC_CR(lp, cr);
1082 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1083 dev->stats.rx_errors++;
1084 dev->stats.rx_fifo_errors++;
1086 SMC_ACK_INT(lp, INT_STS_RDFO_);
1088 /* Handle receive condition */
1089 if ((status & INT_STS_RSFL_) || rx_overrun) {
1091 DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
1092 fifo = SMC_GET_RX_FIFO_INF(lp);
1093 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1094 DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
1095 dev->name, pkts, fifo & 0xFFFF );
1099 if (lp->rxdma_active){
1100 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1101 "%s: RX DMA active\n", dev->name);
1102 /* The DMA is already running so up the IRQ threshold */
1103 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1104 fifo |= pkts & 0xFF;
1106 "%s: Setting RX stat FIFO threshold to %d\n",
1107 dev->name, fifo & 0xff);
1108 SMC_SET_FIFO_INT(lp, fifo);
1113 SMC_ACK_INT(lp, INT_STS_RSFL_);
1115 /* Handle transmit FIFO available */
1116 if (status & INT_STS_TDFA_) {
1117 DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
1118 SMC_SET_FIFO_TDA(lp, 0xFF);
1119 lp->tx_throttle = 0;
1121 if (!lp->txdma_active)
1123 netif_wake_queue(dev);
1124 SMC_ACK_INT(lp, INT_STS_TDFA_);
1126 /* Handle transmit done condition */
1128 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1129 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
1130 "%s: Tx stat FIFO limit (%d) /GPT irq\n",
1131 dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1133 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1134 SMC_ACK_INT(lp, INT_STS_TSFL_);
1135 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1138 if (status & INT_STS_TSFL_) {
1139 DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq \n", dev->name, );
1141 SMC_ACK_INT(lp, INT_STS_TSFL_);
1144 if (status & INT_STS_GPT_INT_) {
1145 DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1147 SMC_GET_IRQ_CFG(lp),
1148 SMC_GET_FIFO_INT(lp),
1149 SMC_GET_RX_CFG(lp));
1150 DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
1151 "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1153 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1154 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1155 SMC_GET_RX_STS_FIFO_PEEK(lp));
1156 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1157 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1161 /* Handle PHY interrupt condition */
1162 if (status & INT_STS_PHY_INT_) {
1163 DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
1164 smc911x_phy_interrupt(dev);
1165 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1167 } while (--timeout);
1169 /* restore mask state */
1170 SMC_SET_INT_EN(lp, mask);
1172 DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
1173 dev->name, 8-timeout);
1175 spin_unlock_irqrestore(&lp->lock, flags);
1182 smc911x_tx_dma_irq(int dma, void *data)
1184 struct net_device *dev = (struct net_device *)data;
1185 struct smc911x_local *lp = netdev_priv(dev);
1186 struct sk_buff *skb = lp->current_tx_skb;
1187 unsigned long flags;
1189 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1191 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
1192 /* Clear the DMA interrupt sources */
1193 SMC_DMA_ACK_IRQ(dev, dma);
1194 BUG_ON(skb == NULL);
1195 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1196 dev->trans_start = jiffies;
1197 dev_kfree_skb_irq(skb);
1198 lp->current_tx_skb = NULL;
1199 if (lp->pending_tx_skb != NULL)
1200 smc911x_hardware_send_pkt(dev);
1202 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1203 "%s: No pending Tx packets. DMA disabled\n", dev->name);
1204 spin_lock_irqsave(&lp->lock, flags);
1205 lp->txdma_active = 0;
1206 if (!lp->tx_throttle) {
1207 netif_wake_queue(dev);
1209 spin_unlock_irqrestore(&lp->lock, flags);
1212 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1213 "%s: TX DMA irq completed\n", dev->name);
1216 smc911x_rx_dma_irq(int dma, void *data)
1218 struct net_device *dev = (struct net_device *)data;
1219 unsigned long ioaddr = dev->base_addr;
1220 struct smc911x_local *lp = netdev_priv(dev);
1221 struct sk_buff *skb = lp->current_rx_skb;
1222 unsigned long flags;
1225 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1226 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
1227 /* Clear the DMA interrupt sources */
1228 SMC_DMA_ACK_IRQ(dev, dma);
1229 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1230 BUG_ON(skb == NULL);
1231 lp->current_rx_skb = NULL;
1232 PRINT_PKT(skb->data, skb->len);
1233 dev->last_rx = jiffies;
1234 skb->protocol = eth_type_trans(skb, dev);
1235 dev->stats.rx_packets++;
1236 dev->stats.rx_bytes += skb->len;
1239 spin_lock_irqsave(&lp->lock, flags);
1240 pkts = (SMC_GET_RX_FIFO_INF() & RX_FIFO_INF_RXSUSED_) >> 16;
1244 lp->rxdma_active = 0;
1246 spin_unlock_irqrestore(&lp->lock, flags);
1247 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1248 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1251 #endif /* SMC_USE_DMA */
1253 #ifdef CONFIG_NET_POLL_CONTROLLER
1255 * Polling receive - used by netconsole and other diagnostic tools
1256 * to allow network i/o with interrupts disabled.
1258 static void smc911x_poll_controller(struct net_device *dev)
1260 disable_irq(dev->irq);
1261 smc911x_interrupt(dev->irq, dev);
1262 enable_irq(dev->irq);
1266 /* Our watchdog timed out. Called by the networking layer */
1267 static void smc911x_timeout(struct net_device *dev)
1269 struct smc911x_local *lp = netdev_priv(dev);
1271 unsigned long flags;
1273 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1275 spin_lock_irqsave(&lp->lock, flags);
1276 status = SMC_GET_INT(lp);
1277 mask = SMC_GET_INT_EN(lp);
1278 spin_unlock_irqrestore(&lp->lock, flags);
1279 DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x \n",
1280 dev->name, status, mask);
1282 /* Dump the current TX FIFO contents and restart */
1283 mask = SMC_GET_TX_CFG(lp);
1284 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1286 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1287 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1288 * which calls schedule(). Hence we use a work queue.
1290 if (lp->phy_type != 0)
1291 schedule_work(&lp->phy_configure);
1293 /* We can accept TX packets again */
1294 dev->trans_start = jiffies;
1295 netif_wake_queue(dev);
1299 * This routine will, depending on the values passed to it,
1300 * either make it accept multicast packets, go into
1301 * promiscuous mode (for TCPDUMP and cousins) or accept
1302 * a select set of multicast packets
1304 static void smc911x_set_multicast_list(struct net_device *dev)
1306 struct smc911x_local *lp = netdev_priv(dev);
1307 unsigned int multicast_table[2];
1308 unsigned int mcr, update_multicast = 0;
1309 unsigned long flags;
1311 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1313 spin_lock_irqsave(&lp->lock, flags);
1314 SMC_GET_MAC_CR(lp, mcr);
1315 spin_unlock_irqrestore(&lp->lock, flags);
1317 if (dev->flags & IFF_PROMISC) {
1319 DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
1320 mcr |= MAC_CR_PRMS_;
1323 * Here, I am setting this to accept all multicast packets.
1324 * I don't need to zero the multicast table, because the flag is
1325 * checked before the table is
1327 else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
1328 DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
1329 mcr |= MAC_CR_MCPAS_;
1333 * This sets the internal hardware table to filter out unwanted
1334 * multicast packets before they take up memory.
1336 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1337 * address are the offset into the table. If that bit is 1, then the
1338 * multicast packet is accepted. Otherwise, it's dropped silently.
1340 * To use the 6 bits as an offset into the table, the high 1 bit is
1341 * the number of the 32 bit register, while the low 5 bits are the bit
1342 * within that register.
1344 else if (dev->mc_count) {
1346 struct dev_mc_list *cur_addr;
1348 /* Set the Hash perfec mode */
1349 mcr |= MAC_CR_HPFILT_;
1351 /* start with a table of all zeros: reject all */
1352 memset(multicast_table, 0, sizeof(multicast_table));
1354 cur_addr = dev->mc_list;
1355 for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) {
1358 /* do we have a pointer here? */
1361 /* make sure this is a multicast address -
1362 shouldn't this be a given if we have it here ? */
1363 if (!(*cur_addr->dmi_addr & 1))
1366 /* upper 6 bits are used as hash index */
1367 position = ether_crc(ETH_ALEN, cur_addr->dmi_addr)>>26;
1369 multicast_table[position>>5] |= 1 << (position&0x1f);
1372 /* be sure I get rid of flags I might have set */
1373 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1375 /* now, the table can be loaded into the chipset */
1376 update_multicast = 1;
1378 DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1380 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1383 * since I'm disabling all multicast entirely, I need to
1384 * clear the multicast list
1386 memset(multicast_table, 0, sizeof(multicast_table));
1387 update_multicast = 1;
1390 spin_lock_irqsave(&lp->lock, flags);
1391 SMC_SET_MAC_CR(lp, mcr);
1392 if (update_multicast) {
1394 "%s: update mcast hash table 0x%08x 0x%08x\n",
1395 dev->name, multicast_table[0], multicast_table[1]);
1396 SMC_SET_HASHL(lp, multicast_table[0]);
1397 SMC_SET_HASHH(lp, multicast_table[1]);
1399 spin_unlock_irqrestore(&lp->lock, flags);
1404 * Open and Initialize the board
1406 * Set up everything, reset the card, etc..
1409 smc911x_open(struct net_device *dev)
1411 struct smc911x_local *lp = netdev_priv(dev);
1413 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1416 * Check that the address is valid. If its not, refuse
1417 * to bring the device up. The user must specify an
1418 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1420 if (!is_valid_ether_addr(dev->dev_addr)) {
1421 PRINTK("%s: no valid ethernet hw addr\n", __func__);
1425 /* reset the hardware */
1428 /* Configure the PHY, initialize the link state */
1429 smc911x_phy_configure(&lp->phy_configure);
1431 /* Turn on Tx + Rx */
1432 smc911x_enable(dev);
1434 netif_start_queue(dev);
1442 * this makes the board clean up everything that it can
1443 * and not talk to the outside world. Caused by
1444 * an 'ifconfig ethX down'
1446 static int smc911x_close(struct net_device *dev)
1448 struct smc911x_local *lp = netdev_priv(dev);
1450 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1452 netif_stop_queue(dev);
1453 netif_carrier_off(dev);
1455 /* clear everything */
1456 smc911x_shutdown(dev);
1458 if (lp->phy_type != 0) {
1459 /* We need to ensure that no calls to
1460 * smc911x_phy_configure are pending.
1462 cancel_work_sync(&lp->phy_configure);
1463 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1466 if (lp->pending_tx_skb) {
1467 dev_kfree_skb(lp->pending_tx_skb);
1468 lp->pending_tx_skb = NULL;
1478 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1480 struct smc911x_local *lp = netdev_priv(dev);
1482 unsigned long flags;
1484 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1488 if (lp->phy_type != 0) {
1489 spin_lock_irqsave(&lp->lock, flags);
1490 ret = mii_ethtool_gset(&lp->mii, cmd);
1491 spin_unlock_irqrestore(&lp->lock, flags);
1493 cmd->supported = SUPPORTED_10baseT_Half |
1494 SUPPORTED_10baseT_Full |
1495 SUPPORTED_TP | SUPPORTED_AUI;
1497 if (lp->ctl_rspeed == 10)
1498 cmd->speed = SPEED_10;
1499 else if (lp->ctl_rspeed == 100)
1500 cmd->speed = SPEED_100;
1502 cmd->autoneg = AUTONEG_DISABLE;
1503 if (lp->mii.phy_id==1)
1504 cmd->transceiver = XCVR_INTERNAL;
1506 cmd->transceiver = XCVR_EXTERNAL;
1508 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1510 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1511 DUPLEX_FULL : DUPLEX_HALF;
1519 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1521 struct smc911x_local *lp = netdev_priv(dev);
1523 unsigned long flags;
1525 if (lp->phy_type != 0) {
1526 spin_lock_irqsave(&lp->lock, flags);
1527 ret = mii_ethtool_sset(&lp->mii, cmd);
1528 spin_unlock_irqrestore(&lp->lock, flags);
1530 if (cmd->autoneg != AUTONEG_DISABLE ||
1531 cmd->speed != SPEED_10 ||
1532 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1533 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1536 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1545 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1547 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1548 strncpy(info->version, version, sizeof(info->version));
1549 strncpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info));
1552 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1554 struct smc911x_local *lp = netdev_priv(dev);
1556 unsigned long flags;
1558 if (lp->phy_type != 0) {
1559 spin_lock_irqsave(&lp->lock, flags);
1560 ret = mii_nway_restart(&lp->mii);
1561 spin_unlock_irqrestore(&lp->lock, flags);
1567 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1569 struct smc911x_local *lp = netdev_priv(dev);
1570 return lp->msg_enable;
1573 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1575 struct smc911x_local *lp = netdev_priv(dev);
1576 lp->msg_enable = level;
1579 static int smc911x_ethtool_getregslen(struct net_device *dev)
1581 /* System regs + MAC regs + PHY regs */
1582 return (((E2P_CMD - ID_REV)/4 + 1) +
1583 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1586 static void smc911x_ethtool_getregs(struct net_device *dev,
1587 struct ethtool_regs* regs, void *buf)
1589 struct smc911x_local *lp = netdev_priv(dev);
1590 unsigned long flags;
1592 u32 *data = (u32*)buf;
1594 regs->version = lp->version;
1595 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1596 data[j++] = SMC_inl(lp, i);
1598 for(i=MAC_CR;i<=WUCSR;i++) {
1599 spin_lock_irqsave(&lp->lock, flags);
1600 SMC_GET_MAC_CSR(lp, i, reg);
1601 spin_unlock_irqrestore(&lp->lock, flags);
1604 for(i=0;i<=31;i++) {
1605 spin_lock_irqsave(&lp->lock, flags);
1606 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1607 spin_unlock_irqrestore(&lp->lock, flags);
1608 data[j++] = reg & 0xFFFF;
1612 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1614 struct smc911x_local *lp = netdev_priv(dev);
1615 unsigned int timeout;
1618 e2p_cmd = SMC_GET_E2P_CMD(lp);
1619 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1620 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1621 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1622 dev->name, __func__);
1626 e2p_cmd = SMC_GET_E2P_CMD(lp);
1629 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1630 dev->name, __func__);
1636 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1639 struct smc911x_local *lp = netdev_priv(dev);
1642 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1644 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1645 ((cmd) & (0x7<<28)) |
1650 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1653 struct smc911x_local *lp = netdev_priv(dev);
1656 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1658 *data = SMC_GET_E2P_DATA(lp);
1662 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1665 struct smc911x_local *lp = netdev_priv(dev);
1668 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1670 SMC_SET_E2P_DATA(lp, data);
1674 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1675 struct ethtool_eeprom *eeprom, u8 *data)
1677 u8 eebuf[SMC911X_EEPROM_LEN];
1680 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1681 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1683 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1686 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1690 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1691 struct ethtool_eeprom *eeprom, u8 *data)
1696 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1698 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1700 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1703 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1705 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1711 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1713 return SMC911X_EEPROM_LEN;
1716 static const struct ethtool_ops smc911x_ethtool_ops = {
1717 .get_settings = smc911x_ethtool_getsettings,
1718 .set_settings = smc911x_ethtool_setsettings,
1719 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1720 .get_msglevel = smc911x_ethtool_getmsglevel,
1721 .set_msglevel = smc911x_ethtool_setmsglevel,
1722 .nway_reset = smc911x_ethtool_nwayreset,
1723 .get_link = ethtool_op_get_link,
1724 .get_regs_len = smc911x_ethtool_getregslen,
1725 .get_regs = smc911x_ethtool_getregs,
1726 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1727 .get_eeprom = smc911x_ethtool_geteeprom,
1728 .set_eeprom = smc911x_ethtool_seteeprom,
1734 * This routine has a simple purpose -- make the SMC chip generate an
1735 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1737 static int __init smc911x_findirq(struct net_device *dev)
1739 struct smc911x_local *lp = netdev_priv(dev);
1741 unsigned long cookie;
1743 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
1745 cookie = probe_irq_on();
1748 * Force a SW interrupt
1751 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1754 * Wait until positive that the interrupt has been generated
1759 int_status = SMC_GET_INT_EN(lp);
1760 if (int_status & INT_EN_SW_INT_EN_)
1761 break; /* got the interrupt */
1762 } while (--timeout);
1765 * there is really nothing that I can do here if timeout fails,
1766 * as autoirq_report will return a 0 anyway, which is what I
1767 * want in this case. Plus, the clean up is needed in both
1771 /* and disable all interrupts again */
1772 SMC_SET_INT_EN(lp, 0);
1774 /* and return what I found */
1775 return probe_irq_off(cookie);
1779 * Function: smc911x_probe(unsigned long ioaddr)
1782 * Tests to see if a given ioaddr points to an SMC911x chip.
1783 * Returns a 0 on success
1786 * (1) see if the endian word is OK
1787 * (1) see if I recognize the chip ID in the appropriate register
1789 * Here I do typical initialization tasks.
1791 * o Initialize the structure if needed
1792 * o print out my vanity message if not done so already
1793 * o print out what type of hardware is detected
1794 * o print out the ethernet address
1796 * o set up my private data
1797 * o configure the dev structure with my subroutines
1798 * o actually GRAB the irq.
1801 static int __init smc911x_probe(struct net_device *dev)
1803 struct smc911x_local *lp = netdev_priv(dev);
1805 unsigned int val, chip_id, revision;
1806 const char *version_string;
1807 unsigned long irq_flags;
1809 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1811 /* First, see if the endian word is recognized */
1812 val = SMC_GET_BYTE_TEST(lp);
1813 DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
1814 if (val != 0x87654321) {
1815 printk(KERN_ERR "Invalid chip endian 0x08%x\n",val);
1821 * check if the revision register is something that I
1822 * recognize. These might need to be added to later,
1823 * as future revisions could be added.
1825 chip_id = SMC_GET_PN(lp);
1826 DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
1827 for(i=0;chip_ids[i].id != 0; i++) {
1828 if (chip_ids[i].id == chip_id) break;
1830 if (!chip_ids[i].id) {
1831 printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
1835 version_string = chip_ids[i].name;
1837 revision = SMC_GET_REV(lp);
1838 DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
1840 /* At this point I'll assume that the chip is an SMC911x. */
1841 DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
1843 /* Validate the TX FIFO size requested */
1844 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1845 printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
1850 /* fill in some of the fields */
1851 lp->version = chip_ids[i].id;
1852 lp->revision = revision;
1853 lp->tx_fifo_kb = tx_fifo_kb;
1854 /* Reverse calculate the RX FIFO size from the TX */
1855 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1856 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1858 /* Set the automatic flow control values */
1859 switch(lp->tx_fifo_kb) {
1861 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1862 * AFC_LO is AFC_HI/2
1863 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1865 case 2:/* 13440 Rx Data Fifo Size */
1866 lp->afc_cfg=0x008C46AF;break;
1867 case 3:/* 12480 Rx Data Fifo Size */
1868 lp->afc_cfg=0x0082419F;break;
1869 case 4:/* 11520 Rx Data Fifo Size */
1870 lp->afc_cfg=0x00783C9F;break;
1871 case 5:/* 10560 Rx Data Fifo Size */
1872 lp->afc_cfg=0x006E374F;break;
1873 case 6:/* 9600 Rx Data Fifo Size */
1874 lp->afc_cfg=0x0064328F;break;
1875 case 7:/* 8640 Rx Data Fifo Size */
1876 lp->afc_cfg=0x005A2D7F;break;
1877 case 8:/* 7680 Rx Data Fifo Size */
1878 lp->afc_cfg=0x0050287F;break;
1879 case 9:/* 6720 Rx Data Fifo Size */
1880 lp->afc_cfg=0x0046236F;break;
1881 case 10:/* 5760 Rx Data Fifo Size */
1882 lp->afc_cfg=0x003C1E6F;break;
1883 case 11:/* 4800 Rx Data Fifo Size */
1884 lp->afc_cfg=0x0032195F;break;
1886 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1887 * AFC_LO is AFC_HI/2
1888 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1890 case 12:/* 3840 Rx Data Fifo Size */
1891 lp->afc_cfg=0x0024124F;break;
1892 case 13:/* 2880 Rx Data Fifo Size */
1893 lp->afc_cfg=0x0015073F;break;
1894 case 14:/* 1920 Rx Data Fifo Size */
1895 lp->afc_cfg=0x0006032F;break;
1897 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1902 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
1903 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1904 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1906 spin_lock_init(&lp->lock);
1908 /* Get the MAC address */
1909 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1911 /* now, reset the chip, and put it into a known state */
1915 * If dev->irq is 0, then the device has to be banged on to see
1918 * Specifying an IRQ is done with the assumption that the user knows
1919 * what (s)he is doing. No checking is done!!!!
1926 dev->irq = smc911x_findirq(dev);
1929 /* kick the card and try again */
1933 if (dev->irq == 0) {
1934 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1939 dev->irq = irq_canonicalize(dev->irq);
1941 /* Fill in the fields of the device structure with ethernet values. */
1944 dev->open = smc911x_open;
1945 dev->stop = smc911x_close;
1946 dev->hard_start_xmit = smc911x_hard_start_xmit;
1947 dev->tx_timeout = smc911x_timeout;
1948 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1949 dev->set_multicast_list = smc911x_set_multicast_list;
1950 dev->ethtool_ops = &smc911x_ethtool_ops;
1951 #ifdef CONFIG_NET_POLL_CONTROLLER
1952 dev->poll_controller = smc911x_poll_controller;
1955 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1956 lp->mii.phy_id_mask = 0x1f;
1957 lp->mii.reg_num_mask = 0x1f;
1958 lp->mii.force_media = 0;
1959 lp->mii.full_duplex = 0;
1961 lp->mii.mdio_read = smc911x_phy_read;
1962 lp->mii.mdio_write = smc911x_phy_write;
1965 * Locate the phy, if any.
1967 smc911x_phy_detect(dev);
1969 /* Set default parameters */
1970 lp->msg_enable = NETIF_MSG_LINK;
1971 lp->ctl_rfduplx = 1;
1972 lp->ctl_rspeed = 100;
1974 #ifdef SMC_DYNAMIC_BUS_CONFIG
1975 irq_flags = lp->cfg.irq_flags;
1977 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1981 retval = request_irq(dev->irq, &smc911x_interrupt,
1982 irq_flags, dev->name, dev);
1987 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
1988 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
1989 lp->rxdma_active = 0;
1990 lp->txdma_active = 0;
1991 dev->dma = lp->rxdma;
1994 retval = register_netdev(dev);
1996 /* now, print out the card info, in a short format.. */
1997 printk("%s: %s (rev %d) at %#lx IRQ %d",
1998 dev->name, version_string, lp->revision,
1999 dev->base_addr, dev->irq);
2002 if (lp->rxdma != -1)
2003 printk(" RXDMA %d ", lp->rxdma);
2005 if (lp->txdma != -1)
2006 printk("TXDMA %d", lp->txdma);
2009 if (!is_valid_ether_addr(dev->dev_addr)) {
2010 printk("%s: Invalid ethernet MAC address. Please "
2011 "set using ifconfig\n", dev->name);
2013 /* Print the Ethernet address */
2014 printk("%s: Ethernet addr: ", dev->name);
2015 for (i = 0; i < 5; i++)
2016 printk("%2.2x:", dev->dev_addr[i]);
2017 printk("%2.2x\n", dev->dev_addr[5]);
2020 if (lp->phy_type == 0) {
2021 PRINTK("%s: No PHY found\n", dev->name);
2022 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2023 PRINTK("%s: LAN911x Internal PHY\n", dev->name);
2025 PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
2032 if (lp->rxdma != -1) {
2033 SMC_DMA_FREE(dev, lp->rxdma);
2035 if (lp->txdma != -1) {
2036 SMC_DMA_FREE(dev, lp->txdma);
2044 * smc911x_init(void)
2047 * 0 --> there is a device
2048 * anything else, error
2050 static int smc911x_drv_probe(struct platform_device *pdev)
2052 struct smc91x_platdata *pd = pdev->dev.platform_data;
2053 struct net_device *ndev;
2054 struct resource *res;
2055 struct smc911x_local *lp;
2059 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2060 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2067 * Request the regions.
2069 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2074 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2076 printk("%s: could not allocate device.\n", CARDNAME);
2080 SET_NETDEV_DEV(ndev, &pdev->dev);
2082 ndev->dma = (unsigned char)-1;
2083 ndev->irq = platform_get_irq(pdev, 0);
2084 lp = netdev_priv(ndev);
2086 #ifdef SMC_DYNAMIC_BUS_CONFIG
2091 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2094 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2100 platform_set_drvdata(pdev, ndev);
2102 ndev->base_addr = res->start;
2103 ret = smc911x_probe(ndev);
2105 platform_set_drvdata(pdev, NULL);
2110 release_mem_region(res->start, SMC911X_IO_EXTENT);
2112 printk("%s: not found (%d).\n", CARDNAME, ret);
2116 lp->physaddr = res->start;
2117 lp->dev = &pdev->dev;
2124 static int smc911x_drv_remove(struct platform_device *pdev)
2126 struct net_device *ndev = platform_get_drvdata(pdev);
2127 struct smc911x_local *lp = netdev_priv(ndev);
2128 struct resource *res;
2130 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2131 platform_set_drvdata(pdev, NULL);
2133 unregister_netdev(ndev);
2135 free_irq(ndev->irq, ndev);
2139 if (lp->rxdma != -1) {
2140 SMC_DMA_FREE(dev, lp->rxdma);
2142 if (lp->txdma != -1) {
2143 SMC_DMA_FREE(dev, lp->txdma);
2148 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2149 release_mem_region(res->start, SMC911X_IO_EXTENT);
2155 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2157 struct net_device *ndev = platform_get_drvdata(dev);
2158 struct smc911x_local *lp = netdev_priv(ndev);
2160 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2162 if (netif_running(ndev)) {
2163 netif_device_detach(ndev);
2164 smc911x_shutdown(ndev);
2166 /* Set D2 - Energy detect only setting */
2167 SMC_SET_PMT_CTRL(lp, 2<<12);
2174 static int smc911x_drv_resume(struct platform_device *dev)
2176 struct net_device *ndev = platform_get_drvdata(dev);
2178 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2180 struct smc911x_local *lp = netdev_priv(ndev);
2182 if (netif_running(ndev)) {
2183 smc911x_reset(ndev);
2184 smc911x_enable(ndev);
2185 if (lp->phy_type != 0)
2186 smc911x_phy_configure(&lp->phy_configure);
2187 netif_device_attach(ndev);
2193 static struct platform_driver smc911x_driver = {
2194 .probe = smc911x_drv_probe,
2195 .remove = smc911x_drv_remove,
2196 .suspend = smc911x_drv_suspend,
2197 .resume = smc911x_drv_resume,
2200 .owner = THIS_MODULE,
2204 static int __init smc911x_init(void)
2206 return platform_driver_register(&smc911x_driver);
2209 static void __exit smc911x_cleanup(void)
2211 platform_driver_unregister(&smc911x_driver);
2214 module_init(smc911x_init);
2215 module_exit(smc911x_cleanup);