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, irq_cfg;
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 irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_;
256 #ifdef SMC_DYNAMIC_BUS_CONFIG
257 if (lp->cfg.irq_polarity)
258 irq_cfg |= INT_CFG_IRQ_POL_;
260 SMC_SET_IRQ_CFG(lp, irq_cfg);
262 /* clear anything saved */
263 if (lp->pending_tx_skb != NULL) {
264 dev_kfree_skb (lp->pending_tx_skb);
265 lp->pending_tx_skb = NULL;
266 dev->stats.tx_errors++;
267 dev->stats.tx_aborted_errors++;
272 * Enable Interrupts, Receive, and Transmit
274 static void smc911x_enable(struct net_device *dev)
276 struct smc911x_local *lp = netdev_priv(dev);
277 unsigned mask, cfg, cr;
280 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
282 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
285 cfg = SMC_GET_HW_CFG(lp);
286 cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF;
288 SMC_SET_HW_CFG(lp, cfg);
289 SMC_SET_FIFO_TDA(lp, 0xFF);
290 /* Update TX stats on every 64 packets received or every 1 sec */
291 SMC_SET_FIFO_TSL(lp, 64);
292 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
294 spin_lock_irqsave(&lp->lock, flags);
295 SMC_GET_MAC_CR(lp, cr);
296 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
297 SMC_SET_MAC_CR(lp, cr);
298 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
299 spin_unlock_irqrestore(&lp->lock, flags);
301 /* Add 2 byte padding to start of packets */
302 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
304 /* Turn on receiver and enable RX */
305 if (cr & MAC_CR_RXEN_)
306 DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name);
308 spin_lock_irqsave(&lp->lock, flags);
309 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
310 spin_unlock_irqrestore(&lp->lock, flags);
312 /* Interrupt on every received packet */
313 SMC_SET_FIFO_RSA(lp, 0x01);
314 SMC_SET_FIFO_RSL(lp, 0x00);
316 /* now, enable interrupts */
317 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
318 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
320 if (IS_REV_A(lp->revision))
321 mask|=INT_EN_RDFL_EN_;
323 mask|=INT_EN_RDFO_EN_;
325 SMC_ENABLE_INT(lp, mask);
329 * this puts the device in an inactive state
331 static void smc911x_shutdown(struct net_device *dev)
333 struct smc911x_local *lp = netdev_priv(dev);
337 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __func__);
340 SMC_SET_INT_EN(lp, 0);
342 /* Turn of Rx and TX */
343 spin_lock_irqsave(&lp->lock, flags);
344 SMC_GET_MAC_CR(lp, cr);
345 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
346 SMC_SET_MAC_CR(lp, cr);
347 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
348 spin_unlock_irqrestore(&lp->lock, flags);
351 static inline void smc911x_drop_pkt(struct net_device *dev)
353 struct smc911x_local *lp = netdev_priv(dev);
354 unsigned int fifo_count, timeout, reg;
356 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __func__);
357 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
358 if (fifo_count <= 4) {
359 /* Manually dump the packet data */
363 /* Fast forward through the bad packet */
364 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
368 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
369 } while (--timeout && reg);
371 PRINTK("%s: timeout waiting for RX fast forward\n", dev->name);
377 * This is the procedure to handle the receipt of a packet.
378 * It should be called after checking for packet presence in
379 * the RX status FIFO. It must be called with the spin lock
382 static inline void smc911x_rcv(struct net_device *dev)
384 struct smc911x_local *lp = netdev_priv(dev);
385 unsigned int pkt_len, status;
389 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n",
390 dev->name, __func__);
391 status = SMC_GET_RX_STS_FIFO(lp);
392 DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x \n",
393 dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff);
394 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
395 if (status & RX_STS_ES_) {
396 /* Deal with a bad packet */
397 dev->stats.rx_errors++;
398 if (status & RX_STS_CRC_ERR_)
399 dev->stats.rx_crc_errors++;
401 if (status & RX_STS_LEN_ERR_)
402 dev->stats.rx_length_errors++;
403 if (status & RX_STS_MCAST_)
404 dev->stats.multicast++;
406 /* Remove the bad packet data from the RX FIFO */
407 smc911x_drop_pkt(dev);
409 /* Receive a valid packet */
410 /* Alloc a buffer with extra room for DMA alignment */
411 skb=dev_alloc_skb(pkt_len+32);
412 if (unlikely(skb == NULL)) {
413 PRINTK( "%s: Low memory, rcvd packet dropped.\n",
415 dev->stats.rx_dropped++;
416 smc911x_drop_pkt(dev);
419 /* Align IP header to 32 bits
420 * Note that the device is configured to add a 2
421 * byte padding to the packet start, so we really
422 * want to write to the orignal data pointer */
425 skb_put(skb,pkt_len-4);
429 /* Lower the FIFO threshold if possible */
430 fifo = SMC_GET_FIFO_INT(lp);
431 if (fifo & 0xFF) fifo--;
432 DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n",
433 dev->name, fifo & 0xff);
434 SMC_SET_FIFO_INT(lp, fifo);
436 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
437 lp->rxdma_active = 1;
438 lp->current_rx_skb = skb;
439 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
440 /* Packet processing deferred to DMA RX interrupt */
443 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
444 SMC_PULL_DATA(lp, data, pkt_len+2+3);
446 DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name);
447 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
448 dev->last_rx = jiffies;
449 skb->protocol = eth_type_trans(skb, dev);
451 dev->stats.rx_packets++;
452 dev->stats.rx_bytes += pkt_len-4;
458 * This is called to actually send a packet to the chip.
460 static void smc911x_hardware_send_pkt(struct net_device *dev)
462 struct smc911x_local *lp = netdev_priv(dev);
464 unsigned int cmdA, cmdB, len;
468 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __func__);
469 BUG_ON(lp->pending_tx_skb == NULL);
471 skb = lp->pending_tx_skb;
472 lp->pending_tx_skb = NULL;
474 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
475 /* cmdB {31:16] pkt tag [10:0] length */
477 /* 16 byte buffer alignment mode */
478 buf = (char*)((u32)(skb->data) & ~0xF);
479 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
480 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
481 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
484 buf = (char*)((u32)skb->data & ~0x3);
485 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
486 cmdA = (((u32)skb->data & 0x3) << 16) |
487 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
490 /* tag is packet length so we can use this in stats update later */
491 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
493 DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
494 dev->name, len, len, buf, cmdA, cmdB);
495 SMC_SET_TX_FIFO(lp, cmdA);
496 SMC_SET_TX_FIFO(lp, cmdB);
498 DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name);
499 PRINT_PKT(buf, len <= 64 ? len : 64);
501 /* Send pkt via PIO or DMA */
503 lp->current_tx_skb = skb;
504 SMC_PUSH_DATA(lp, buf, len);
505 /* DMA complete IRQ will free buffer and set jiffies */
507 SMC_PUSH_DATA(lp, buf, len);
508 dev->trans_start = jiffies;
511 spin_lock_irqsave(&lp->lock, flags);
512 if (!lp->tx_throttle) {
513 netif_wake_queue(dev);
515 spin_unlock_irqrestore(&lp->lock, flags);
516 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
520 * Since I am not sure if I will have enough room in the chip's ram
521 * to store the packet, I call this routine which either sends it
522 * now, or set the card to generates an interrupt when ready
525 static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
527 struct smc911x_local *lp = netdev_priv(dev);
531 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
532 dev->name, __func__);
534 BUG_ON(lp->pending_tx_skb != NULL);
536 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
537 DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free);
539 /* Turn off the flow when running out of space in FIFO */
540 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
541 DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n",
543 spin_lock_irqsave(&lp->lock, flags);
544 /* Reenable when at least 1 packet of size MTU present */
545 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
547 netif_stop_queue(dev);
548 spin_unlock_irqrestore(&lp->lock, flags);
551 /* Drop packets when we run out of space in TX FIFO
552 * Account for overhead required for:
554 * Tx command words 8 bytes
555 * Start offset 15 bytes
556 * End padding 15 bytes
558 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
559 printk("%s: No Tx free space %d < %d\n",
560 dev->name, free, skb->len);
561 lp->pending_tx_skb = NULL;
562 dev->stats.tx_errors++;
563 dev->stats.tx_dropped++;
570 /* If the DMA is already running then defer this packet Tx until
571 * the DMA IRQ starts it
573 spin_lock_irqsave(&lp->lock, flags);
574 if (lp->txdma_active) {
575 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name);
576 lp->pending_tx_skb = skb;
577 netif_stop_queue(dev);
578 spin_unlock_irqrestore(&lp->lock, flags);
581 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name);
582 lp->txdma_active = 1;
584 spin_unlock_irqrestore(&lp->lock, flags);
587 lp->pending_tx_skb = skb;
588 smc911x_hardware_send_pkt(dev);
594 * This handles a TX status interrupt, which is only called when:
595 * - a TX error occurred, or
596 * - TX of a packet completed.
598 static void smc911x_tx(struct net_device *dev)
600 struct smc911x_local *lp = netdev_priv(dev);
601 unsigned int tx_status;
603 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
604 dev->name, __func__);
606 /* Collect the TX status */
607 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
608 DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n",
610 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
611 tx_status = SMC_GET_TX_STS_FIFO(lp);
612 dev->stats.tx_packets++;
613 dev->stats.tx_bytes+=tx_status>>16;
614 DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
615 dev->name, (tx_status & 0xffff0000) >> 16,
616 tx_status & 0x0000ffff);
617 /* count Tx errors, but ignore lost carrier errors when in
618 * full-duplex mode */
619 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
620 !(tx_status & 0x00000306))) {
621 dev->stats.tx_errors++;
623 if (tx_status & TX_STS_MANY_COLL_) {
624 dev->stats.collisions+=16;
625 dev->stats.tx_aborted_errors++;
627 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
629 /* carrier error only has meaning for half-duplex communication */
630 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
632 dev->stats.tx_carrier_errors++;
634 if (tx_status & TX_STS_LATE_COLL_) {
635 dev->stats.collisions++;
636 dev->stats.tx_aborted_errors++;
642 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
644 * Reads a register from the MII Management serial interface
647 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
649 struct smc911x_local *lp = netdev_priv(dev);
650 unsigned int phydata;
652 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
654 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
655 __func__, phyaddr, phyreg, phydata);
661 * Writes a register to the MII Management serial interface
663 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
666 struct smc911x_local *lp = netdev_priv(dev);
668 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
669 __func__, phyaddr, phyreg, phydata);
671 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
675 * Finds and reports the PHY address (115 and 117 have external
676 * PHY interface 118 has internal only
678 static void smc911x_phy_detect(struct net_device *dev)
680 struct smc911x_local *lp = netdev_priv(dev);
682 unsigned int cfg, id1, id2;
684 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
689 * Scan all 32 PHY addresses if necessary, starting at
690 * PHY#1 to PHY#31, and then PHY#0 last.
692 switch(lp->version) {
697 cfg = SMC_GET_HW_CFG(lp);
698 if (cfg & HW_CFG_EXT_PHY_DET_) {
699 cfg &= ~HW_CFG_PHY_CLK_SEL_;
700 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
701 SMC_SET_HW_CFG(lp, cfg);
702 udelay(10); /* Wait for clocks to stop */
704 cfg |= HW_CFG_EXT_PHY_EN_;
705 SMC_SET_HW_CFG(lp, cfg);
706 udelay(10); /* Wait for clocks to stop */
708 cfg &= ~HW_CFG_PHY_CLK_SEL_;
709 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
710 SMC_SET_HW_CFG(lp, cfg);
711 udelay(10); /* Wait for clocks to stop */
713 cfg |= HW_CFG_SMI_SEL_;
714 SMC_SET_HW_CFG(lp, cfg);
716 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
718 /* Read the PHY identifiers */
719 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
720 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
722 /* Make sure it is a valid identifier */
723 if (id1 != 0x0000 && id1 != 0xffff &&
724 id1 != 0x8000 && id2 != 0x0000 &&
725 id2 != 0xffff && id2 != 0x8000) {
726 /* Save the PHY's address */
727 lp->mii.phy_id = phyaddr & 31;
728 lp->phy_type = id1 << 16 | id2;
733 /* Found an external PHY */
737 /* Internal media only */
738 SMC_GET_PHY_ID1(lp, 1, id1);
739 SMC_GET_PHY_ID2(lp, 1, id2);
740 /* Save the PHY's address */
742 lp->phy_type = id1 << 16 | id2;
745 DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
746 dev->name, id1, id2, lp->mii.phy_id);
750 * Sets the PHY to a configuration as determined by the user.
751 * Called with spin_lock held.
753 static int smc911x_phy_fixed(struct net_device *dev)
755 struct smc911x_local *lp = netdev_priv(dev);
756 int phyaddr = lp->mii.phy_id;
759 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
761 /* Enter Link Disable state */
762 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
764 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
767 * Set our fixed capabilities
768 * Disable auto-negotiation
770 bmcr &= ~BMCR_ANENABLE;
772 bmcr |= BMCR_FULLDPLX;
774 if (lp->ctl_rspeed == 100)
775 bmcr |= BMCR_SPEED100;
777 /* Write our capabilities to the phy control register */
778 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
780 /* Re-Configure the Receive/Phy Control register */
782 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
788 * smc911x_phy_reset - reset the phy
792 * Issue a software reset for the specified PHY and
793 * wait up to 100ms for the reset to complete. We should
794 * not access the PHY for 50ms after issuing the reset.
796 * The time to wait appears to be dependent on the PHY.
799 static int smc911x_phy_reset(struct net_device *dev, int phy)
801 struct smc911x_local *lp = netdev_priv(dev);
806 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
808 spin_lock_irqsave(&lp->lock, flags);
809 reg = SMC_GET_PMT_CTRL(lp);
811 reg |= PMT_CTRL_PHY_RST_;
812 SMC_SET_PMT_CTRL(lp, reg);
813 spin_unlock_irqrestore(&lp->lock, flags);
814 for (timeout = 2; timeout; timeout--) {
816 spin_lock_irqsave(&lp->lock, flags);
817 reg = SMC_GET_PMT_CTRL(lp);
818 spin_unlock_irqrestore(&lp->lock, flags);
819 if (!(reg & PMT_CTRL_PHY_RST_)) {
820 /* extra delay required because the phy may
821 * not be completed with its reset
822 * when PHY_BCR_RESET_ is cleared. 256us
823 * should suffice, but use 500us to be safe
830 return reg & PMT_CTRL_PHY_RST_;
834 * smc911x_phy_powerdown - powerdown phy
838 * Power down the specified PHY
840 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
842 struct smc911x_local *lp = netdev_priv(dev);
845 /* Enter Link Disable state */
846 SMC_GET_PHY_BMCR(lp, phy, bmcr);
848 SMC_SET_PHY_BMCR(lp, phy, bmcr);
852 * smc911x_phy_check_media - check the media status and adjust BMCR
854 * @init: set true for initialisation
856 * Select duplex mode depending on negotiation state. This
857 * also updates our carrier state.
859 static void smc911x_phy_check_media(struct net_device *dev, int init)
861 struct smc911x_local *lp = netdev_priv(dev);
862 int phyaddr = lp->mii.phy_id;
863 unsigned int bmcr, cr;
865 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
867 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
868 /* duplex state has changed */
869 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
870 SMC_GET_MAC_CR(lp, cr);
871 if (lp->mii.full_duplex) {
872 DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name);
873 bmcr |= BMCR_FULLDPLX;
874 cr |= MAC_CR_RCVOWN_;
876 DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name);
877 bmcr &= ~BMCR_FULLDPLX;
878 cr &= ~MAC_CR_RCVOWN_;
880 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
881 SMC_SET_MAC_CR(lp, cr);
886 * Configures the specified PHY through the MII management interface
887 * using Autonegotiation.
888 * Calls smc911x_phy_fixed() if the user has requested a certain config.
889 * If RPC ANEG bit is set, the media selection is dependent purely on
890 * the selection by the MII (either in the MII BMCR reg or the result
891 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
892 * is controlled by the RPC SPEED and RPC DPLX bits.
894 static void smc911x_phy_configure(struct work_struct *work)
896 struct smc911x_local *lp = container_of(work, struct smc911x_local,
898 struct net_device *dev = lp->netdev;
899 int phyaddr = lp->mii.phy_id;
900 int my_phy_caps; /* My PHY capabilities */
901 int my_ad_caps; /* My Advertised capabilities */
905 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
908 * We should not be called if phy_type is zero.
910 if (lp->phy_type == 0)
913 if (smc911x_phy_reset(dev, phyaddr)) {
914 printk("%s: PHY reset timed out\n", dev->name);
917 spin_lock_irqsave(&lp->lock, flags);
920 * Enable PHY Interrupts (for register 18)
921 * Interrupts listed here are enabled
923 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
924 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
925 PHY_INT_MASK_LINK_DOWN_);
927 /* If the user requested no auto neg, then go set his request */
928 if (lp->mii.force_media) {
929 smc911x_phy_fixed(dev);
930 goto smc911x_phy_configure_exit;
933 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
934 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
935 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
936 printk(KERN_INFO "Auto negotiation NOT supported\n");
937 smc911x_phy_fixed(dev);
938 goto smc911x_phy_configure_exit;
941 /* CSMA capable w/ both pauses */
942 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
944 if (my_phy_caps & BMSR_100BASE4)
945 my_ad_caps |= ADVERTISE_100BASE4;
946 if (my_phy_caps & BMSR_100FULL)
947 my_ad_caps |= ADVERTISE_100FULL;
948 if (my_phy_caps & BMSR_100HALF)
949 my_ad_caps |= ADVERTISE_100HALF;
950 if (my_phy_caps & BMSR_10FULL)
951 my_ad_caps |= ADVERTISE_10FULL;
952 if (my_phy_caps & BMSR_10HALF)
953 my_ad_caps |= ADVERTISE_10HALF;
955 /* Disable capabilities not selected by our user */
956 if (lp->ctl_rspeed != 100)
957 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
959 if (!lp->ctl_rfduplx)
960 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
962 /* Update our Auto-Neg Advertisement Register */
963 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
964 lp->mii.advertising = my_ad_caps;
967 * Read the register back. Without this, it appears that when
968 * auto-negotiation is restarted, sometimes it isn't ready and
969 * the link does not come up.
972 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
974 DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps);
975 DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps);
977 /* Restart auto-negotiation process in order to advertise my caps */
978 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
980 smc911x_phy_check_media(dev, 1);
982 smc911x_phy_configure_exit:
983 spin_unlock_irqrestore(&lp->lock, flags);
987 * smc911x_phy_interrupt
989 * Purpose: Handle interrupts relating to PHY register 18. This is
990 * called from the "hard" interrupt handler under our private spinlock.
992 static void smc911x_phy_interrupt(struct net_device *dev)
994 struct smc911x_local *lp = netdev_priv(dev);
995 int phyaddr = lp->mii.phy_id;
998 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1000 if (lp->phy_type == 0)
1003 smc911x_phy_check_media(dev, 0);
1004 /* read to clear status bits */
1005 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
1006 DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
1007 dev->name, status & 0xffff);
1008 DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
1009 dev->name, SMC_GET_AFC_CFG(lp));
1012 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1015 * This is the main routine of the driver, to handle the device when
1016 * it needs some attention.
1018 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1020 struct net_device *dev = dev_id;
1021 struct smc911x_local *lp = netdev_priv(dev);
1022 unsigned int status, mask, timeout;
1023 unsigned int rx_overrun=0, cr, pkts;
1024 unsigned long flags;
1026 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1028 spin_lock_irqsave(&lp->lock, flags);
1030 /* Spurious interrupt check */
1031 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1032 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1033 spin_unlock_irqrestore(&lp->lock, flags);
1037 mask = SMC_GET_INT_EN(lp);
1038 SMC_SET_INT_EN(lp, 0);
1040 /* set a timeout value, so I don't stay here forever */
1045 status = SMC_GET_INT(lp);
1047 DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1048 dev->name, status, mask, status & ~mask);
1054 /* Handle SW interrupt condition */
1055 if (status & INT_STS_SW_INT_) {
1056 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1057 mask &= ~INT_EN_SW_INT_EN_;
1059 /* Handle various error conditions */
1060 if (status & INT_STS_RXE_) {
1061 SMC_ACK_INT(lp, INT_STS_RXE_);
1062 dev->stats.rx_errors++;
1064 if (status & INT_STS_RXDFH_INT_) {
1065 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1066 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1068 /* Undocumented interrupt-what is the right thing to do here? */
1069 if (status & INT_STS_RXDF_INT_) {
1070 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1073 /* Rx Data FIFO exceeds set level */
1074 if (status & INT_STS_RDFL_) {
1075 if (IS_REV_A(lp->revision)) {
1077 SMC_GET_MAC_CR(lp, cr);
1078 cr &= ~MAC_CR_RXEN_;
1079 SMC_SET_MAC_CR(lp, cr);
1080 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1081 dev->stats.rx_errors++;
1082 dev->stats.rx_fifo_errors++;
1084 SMC_ACK_INT(lp, INT_STS_RDFL_);
1086 if (status & INT_STS_RDFO_) {
1087 if (!IS_REV_A(lp->revision)) {
1088 SMC_GET_MAC_CR(lp, cr);
1089 cr &= ~MAC_CR_RXEN_;
1090 SMC_SET_MAC_CR(lp, cr);
1092 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1093 dev->stats.rx_errors++;
1094 dev->stats.rx_fifo_errors++;
1096 SMC_ACK_INT(lp, INT_STS_RDFO_);
1098 /* Handle receive condition */
1099 if ((status & INT_STS_RSFL_) || rx_overrun) {
1101 DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
1102 fifo = SMC_GET_RX_FIFO_INF(lp);
1103 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1104 DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
1105 dev->name, pkts, fifo & 0xFFFF );
1109 if (lp->rxdma_active){
1110 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1111 "%s: RX DMA active\n", dev->name);
1112 /* The DMA is already running so up the IRQ threshold */
1113 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1114 fifo |= pkts & 0xFF;
1116 "%s: Setting RX stat FIFO threshold to %d\n",
1117 dev->name, fifo & 0xff);
1118 SMC_SET_FIFO_INT(lp, fifo);
1123 SMC_ACK_INT(lp, INT_STS_RSFL_);
1125 /* Handle transmit FIFO available */
1126 if (status & INT_STS_TDFA_) {
1127 DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
1128 SMC_SET_FIFO_TDA(lp, 0xFF);
1129 lp->tx_throttle = 0;
1131 if (!lp->txdma_active)
1133 netif_wake_queue(dev);
1134 SMC_ACK_INT(lp, INT_STS_TDFA_);
1136 /* Handle transmit done condition */
1138 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1139 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
1140 "%s: Tx stat FIFO limit (%d) /GPT irq\n",
1141 dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1143 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1144 SMC_ACK_INT(lp, INT_STS_TSFL_);
1145 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1148 if (status & INT_STS_TSFL_) {
1149 DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq \n", dev->name, );
1151 SMC_ACK_INT(lp, INT_STS_TSFL_);
1154 if (status & INT_STS_GPT_INT_) {
1155 DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1157 SMC_GET_IRQ_CFG(lp),
1158 SMC_GET_FIFO_INT(lp),
1159 SMC_GET_RX_CFG(lp));
1160 DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
1161 "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1163 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1164 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1165 SMC_GET_RX_STS_FIFO_PEEK(lp));
1166 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1167 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1171 /* Handle PHY interrupt condition */
1172 if (status & INT_STS_PHY_INT_) {
1173 DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
1174 smc911x_phy_interrupt(dev);
1175 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1177 } while (--timeout);
1179 /* restore mask state */
1180 SMC_SET_INT_EN(lp, mask);
1182 DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
1183 dev->name, 8-timeout);
1185 spin_unlock_irqrestore(&lp->lock, flags);
1192 smc911x_tx_dma_irq(int dma, void *data)
1194 struct net_device *dev = (struct net_device *)data;
1195 struct smc911x_local *lp = netdev_priv(dev);
1196 struct sk_buff *skb = lp->current_tx_skb;
1197 unsigned long flags;
1199 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1201 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
1202 /* Clear the DMA interrupt sources */
1203 SMC_DMA_ACK_IRQ(dev, dma);
1204 BUG_ON(skb == NULL);
1205 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1206 dev->trans_start = jiffies;
1207 dev_kfree_skb_irq(skb);
1208 lp->current_tx_skb = NULL;
1209 if (lp->pending_tx_skb != NULL)
1210 smc911x_hardware_send_pkt(dev);
1212 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1213 "%s: No pending Tx packets. DMA disabled\n", dev->name);
1214 spin_lock_irqsave(&lp->lock, flags);
1215 lp->txdma_active = 0;
1216 if (!lp->tx_throttle) {
1217 netif_wake_queue(dev);
1219 spin_unlock_irqrestore(&lp->lock, flags);
1222 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1223 "%s: TX DMA irq completed\n", dev->name);
1226 smc911x_rx_dma_irq(int dma, void *data)
1228 struct net_device *dev = (struct net_device *)data;
1229 unsigned long ioaddr = dev->base_addr;
1230 struct smc911x_local *lp = netdev_priv(dev);
1231 struct sk_buff *skb = lp->current_rx_skb;
1232 unsigned long flags;
1235 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1236 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
1237 /* Clear the DMA interrupt sources */
1238 SMC_DMA_ACK_IRQ(dev, dma);
1239 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1240 BUG_ON(skb == NULL);
1241 lp->current_rx_skb = NULL;
1242 PRINT_PKT(skb->data, skb->len);
1243 dev->last_rx = jiffies;
1244 skb->protocol = eth_type_trans(skb, dev);
1245 dev->stats.rx_packets++;
1246 dev->stats.rx_bytes += skb->len;
1249 spin_lock_irqsave(&lp->lock, flags);
1250 pkts = (SMC_GET_RX_FIFO_INF(lp) & RX_FIFO_INF_RXSUSED_) >> 16;
1254 lp->rxdma_active = 0;
1256 spin_unlock_irqrestore(&lp->lock, flags);
1257 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1258 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1261 #endif /* SMC_USE_DMA */
1263 #ifdef CONFIG_NET_POLL_CONTROLLER
1265 * Polling receive - used by netconsole and other diagnostic tools
1266 * to allow network i/o with interrupts disabled.
1268 static void smc911x_poll_controller(struct net_device *dev)
1270 disable_irq(dev->irq);
1271 smc911x_interrupt(dev->irq, dev);
1272 enable_irq(dev->irq);
1276 /* Our watchdog timed out. Called by the networking layer */
1277 static void smc911x_timeout(struct net_device *dev)
1279 struct smc911x_local *lp = netdev_priv(dev);
1281 unsigned long flags;
1283 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1285 spin_lock_irqsave(&lp->lock, flags);
1286 status = SMC_GET_INT(lp);
1287 mask = SMC_GET_INT_EN(lp);
1288 spin_unlock_irqrestore(&lp->lock, flags);
1289 DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x \n",
1290 dev->name, status, mask);
1292 /* Dump the current TX FIFO contents and restart */
1293 mask = SMC_GET_TX_CFG(lp);
1294 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1296 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1297 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1298 * which calls schedule(). Hence we use a work queue.
1300 if (lp->phy_type != 0)
1301 schedule_work(&lp->phy_configure);
1303 /* We can accept TX packets again */
1304 dev->trans_start = jiffies;
1305 netif_wake_queue(dev);
1309 * This routine will, depending on the values passed to it,
1310 * either make it accept multicast packets, go into
1311 * promiscuous mode (for TCPDUMP and cousins) or accept
1312 * a select set of multicast packets
1314 static void smc911x_set_multicast_list(struct net_device *dev)
1316 struct smc911x_local *lp = netdev_priv(dev);
1317 unsigned int multicast_table[2];
1318 unsigned int mcr, update_multicast = 0;
1319 unsigned long flags;
1321 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1323 spin_lock_irqsave(&lp->lock, flags);
1324 SMC_GET_MAC_CR(lp, mcr);
1325 spin_unlock_irqrestore(&lp->lock, flags);
1327 if (dev->flags & IFF_PROMISC) {
1329 DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
1330 mcr |= MAC_CR_PRMS_;
1333 * Here, I am setting this to accept all multicast packets.
1334 * I don't need to zero the multicast table, because the flag is
1335 * checked before the table is
1337 else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
1338 DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
1339 mcr |= MAC_CR_MCPAS_;
1343 * This sets the internal hardware table to filter out unwanted
1344 * multicast packets before they take up memory.
1346 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1347 * address are the offset into the table. If that bit is 1, then the
1348 * multicast packet is accepted. Otherwise, it's dropped silently.
1350 * To use the 6 bits as an offset into the table, the high 1 bit is
1351 * the number of the 32 bit register, while the low 5 bits are the bit
1352 * within that register.
1354 else if (dev->mc_count) {
1356 struct dev_mc_list *cur_addr;
1358 /* Set the Hash perfec mode */
1359 mcr |= MAC_CR_HPFILT_;
1361 /* start with a table of all zeros: reject all */
1362 memset(multicast_table, 0, sizeof(multicast_table));
1364 cur_addr = dev->mc_list;
1365 for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) {
1368 /* do we have a pointer here? */
1371 /* make sure this is a multicast address -
1372 shouldn't this be a given if we have it here ? */
1373 if (!(*cur_addr->dmi_addr & 1))
1376 /* upper 6 bits are used as hash index */
1377 position = ether_crc(ETH_ALEN, cur_addr->dmi_addr)>>26;
1379 multicast_table[position>>5] |= 1 << (position&0x1f);
1382 /* be sure I get rid of flags I might have set */
1383 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1385 /* now, the table can be loaded into the chipset */
1386 update_multicast = 1;
1388 DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1390 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1393 * since I'm disabling all multicast entirely, I need to
1394 * clear the multicast list
1396 memset(multicast_table, 0, sizeof(multicast_table));
1397 update_multicast = 1;
1400 spin_lock_irqsave(&lp->lock, flags);
1401 SMC_SET_MAC_CR(lp, mcr);
1402 if (update_multicast) {
1404 "%s: update mcast hash table 0x%08x 0x%08x\n",
1405 dev->name, multicast_table[0], multicast_table[1]);
1406 SMC_SET_HASHL(lp, multicast_table[0]);
1407 SMC_SET_HASHH(lp, multicast_table[1]);
1409 spin_unlock_irqrestore(&lp->lock, flags);
1414 * Open and Initialize the board
1416 * Set up everything, reset the card, etc..
1419 smc911x_open(struct net_device *dev)
1421 struct smc911x_local *lp = netdev_priv(dev);
1423 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1426 * Check that the address is valid. If its not, refuse
1427 * to bring the device up. The user must specify an
1428 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1430 if (!is_valid_ether_addr(dev->dev_addr)) {
1431 PRINTK("%s: no valid ethernet hw addr\n", __func__);
1435 /* reset the hardware */
1438 /* Configure the PHY, initialize the link state */
1439 smc911x_phy_configure(&lp->phy_configure);
1441 /* Turn on Tx + Rx */
1442 smc911x_enable(dev);
1444 netif_start_queue(dev);
1452 * this makes the board clean up everything that it can
1453 * and not talk to the outside world. Caused by
1454 * an 'ifconfig ethX down'
1456 static int smc911x_close(struct net_device *dev)
1458 struct smc911x_local *lp = netdev_priv(dev);
1460 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1462 netif_stop_queue(dev);
1463 netif_carrier_off(dev);
1465 /* clear everything */
1466 smc911x_shutdown(dev);
1468 if (lp->phy_type != 0) {
1469 /* We need to ensure that no calls to
1470 * smc911x_phy_configure are pending.
1472 cancel_work_sync(&lp->phy_configure);
1473 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1476 if (lp->pending_tx_skb) {
1477 dev_kfree_skb(lp->pending_tx_skb);
1478 lp->pending_tx_skb = NULL;
1488 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1490 struct smc911x_local *lp = netdev_priv(dev);
1492 unsigned long flags;
1494 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1498 if (lp->phy_type != 0) {
1499 spin_lock_irqsave(&lp->lock, flags);
1500 ret = mii_ethtool_gset(&lp->mii, cmd);
1501 spin_unlock_irqrestore(&lp->lock, flags);
1503 cmd->supported = SUPPORTED_10baseT_Half |
1504 SUPPORTED_10baseT_Full |
1505 SUPPORTED_TP | SUPPORTED_AUI;
1507 if (lp->ctl_rspeed == 10)
1508 cmd->speed = SPEED_10;
1509 else if (lp->ctl_rspeed == 100)
1510 cmd->speed = SPEED_100;
1512 cmd->autoneg = AUTONEG_DISABLE;
1513 if (lp->mii.phy_id==1)
1514 cmd->transceiver = XCVR_INTERNAL;
1516 cmd->transceiver = XCVR_EXTERNAL;
1518 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1520 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1521 DUPLEX_FULL : DUPLEX_HALF;
1529 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1531 struct smc911x_local *lp = netdev_priv(dev);
1533 unsigned long flags;
1535 if (lp->phy_type != 0) {
1536 spin_lock_irqsave(&lp->lock, flags);
1537 ret = mii_ethtool_sset(&lp->mii, cmd);
1538 spin_unlock_irqrestore(&lp->lock, flags);
1540 if (cmd->autoneg != AUTONEG_DISABLE ||
1541 cmd->speed != SPEED_10 ||
1542 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1543 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1546 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1555 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1557 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1558 strncpy(info->version, version, sizeof(info->version));
1559 strncpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info));
1562 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1564 struct smc911x_local *lp = netdev_priv(dev);
1566 unsigned long flags;
1568 if (lp->phy_type != 0) {
1569 spin_lock_irqsave(&lp->lock, flags);
1570 ret = mii_nway_restart(&lp->mii);
1571 spin_unlock_irqrestore(&lp->lock, flags);
1577 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1579 struct smc911x_local *lp = netdev_priv(dev);
1580 return lp->msg_enable;
1583 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1585 struct smc911x_local *lp = netdev_priv(dev);
1586 lp->msg_enable = level;
1589 static int smc911x_ethtool_getregslen(struct net_device *dev)
1591 /* System regs + MAC regs + PHY regs */
1592 return (((E2P_CMD - ID_REV)/4 + 1) +
1593 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1596 static void smc911x_ethtool_getregs(struct net_device *dev,
1597 struct ethtool_regs* regs, void *buf)
1599 struct smc911x_local *lp = netdev_priv(dev);
1600 unsigned long flags;
1602 u32 *data = (u32*)buf;
1604 regs->version = lp->version;
1605 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1606 data[j++] = SMC_inl(lp, i);
1608 for(i=MAC_CR;i<=WUCSR;i++) {
1609 spin_lock_irqsave(&lp->lock, flags);
1610 SMC_GET_MAC_CSR(lp, i, reg);
1611 spin_unlock_irqrestore(&lp->lock, flags);
1614 for(i=0;i<=31;i++) {
1615 spin_lock_irqsave(&lp->lock, flags);
1616 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1617 spin_unlock_irqrestore(&lp->lock, flags);
1618 data[j++] = reg & 0xFFFF;
1622 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1624 struct smc911x_local *lp = netdev_priv(dev);
1625 unsigned int timeout;
1628 e2p_cmd = SMC_GET_E2P_CMD(lp);
1629 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1630 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1631 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1632 dev->name, __func__);
1636 e2p_cmd = SMC_GET_E2P_CMD(lp);
1639 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1640 dev->name, __func__);
1646 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1649 struct smc911x_local *lp = netdev_priv(dev);
1652 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1654 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1655 ((cmd) & (0x7<<28)) |
1660 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1663 struct smc911x_local *lp = netdev_priv(dev);
1666 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1668 *data = SMC_GET_E2P_DATA(lp);
1672 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1675 struct smc911x_local *lp = netdev_priv(dev);
1678 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1680 SMC_SET_E2P_DATA(lp, data);
1684 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1685 struct ethtool_eeprom *eeprom, u8 *data)
1687 u8 eebuf[SMC911X_EEPROM_LEN];
1690 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1691 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1693 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1696 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1700 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1701 struct ethtool_eeprom *eeprom, u8 *data)
1706 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1708 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1710 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1713 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1715 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1721 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1723 return SMC911X_EEPROM_LEN;
1726 static const struct ethtool_ops smc911x_ethtool_ops = {
1727 .get_settings = smc911x_ethtool_getsettings,
1728 .set_settings = smc911x_ethtool_setsettings,
1729 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1730 .get_msglevel = smc911x_ethtool_getmsglevel,
1731 .set_msglevel = smc911x_ethtool_setmsglevel,
1732 .nway_reset = smc911x_ethtool_nwayreset,
1733 .get_link = ethtool_op_get_link,
1734 .get_regs_len = smc911x_ethtool_getregslen,
1735 .get_regs = smc911x_ethtool_getregs,
1736 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1737 .get_eeprom = smc911x_ethtool_geteeprom,
1738 .set_eeprom = smc911x_ethtool_seteeprom,
1744 * This routine has a simple purpose -- make the SMC chip generate an
1745 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1747 static int __init smc911x_findirq(struct net_device *dev)
1749 struct smc911x_local *lp = netdev_priv(dev);
1751 unsigned long cookie;
1753 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
1755 cookie = probe_irq_on();
1758 * Force a SW interrupt
1761 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1764 * Wait until positive that the interrupt has been generated
1769 int_status = SMC_GET_INT_EN(lp);
1770 if (int_status & INT_EN_SW_INT_EN_)
1771 break; /* got the interrupt */
1772 } while (--timeout);
1775 * there is really nothing that I can do here if timeout fails,
1776 * as autoirq_report will return a 0 anyway, which is what I
1777 * want in this case. Plus, the clean up is needed in both
1781 /* and disable all interrupts again */
1782 SMC_SET_INT_EN(lp, 0);
1784 /* and return what I found */
1785 return probe_irq_off(cookie);
1789 * Function: smc911x_probe(unsigned long ioaddr)
1792 * Tests to see if a given ioaddr points to an SMC911x chip.
1793 * Returns a 0 on success
1796 * (1) see if the endian word is OK
1797 * (1) see if I recognize the chip ID in the appropriate register
1799 * Here I do typical initialization tasks.
1801 * o Initialize the structure if needed
1802 * o print out my vanity message if not done so already
1803 * o print out what type of hardware is detected
1804 * o print out the ethernet address
1806 * o set up my private data
1807 * o configure the dev structure with my subroutines
1808 * o actually GRAB the irq.
1811 static int __init smc911x_probe(struct net_device *dev)
1813 struct smc911x_local *lp = netdev_priv(dev);
1815 unsigned int val, chip_id, revision;
1816 const char *version_string;
1817 unsigned long irq_flags;
1819 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1821 /* First, see if the endian word is recognized */
1822 val = SMC_GET_BYTE_TEST(lp);
1823 DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
1824 if (val != 0x87654321) {
1825 printk(KERN_ERR "Invalid chip endian 0x08%x\n",val);
1831 * check if the revision register is something that I
1832 * recognize. These might need to be added to later,
1833 * as future revisions could be added.
1835 chip_id = SMC_GET_PN(lp);
1836 DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
1837 for(i=0;chip_ids[i].id != 0; i++) {
1838 if (chip_ids[i].id == chip_id) break;
1840 if (!chip_ids[i].id) {
1841 printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
1845 version_string = chip_ids[i].name;
1847 revision = SMC_GET_REV(lp);
1848 DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
1850 /* At this point I'll assume that the chip is an SMC911x. */
1851 DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
1853 /* Validate the TX FIFO size requested */
1854 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1855 printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
1860 /* fill in some of the fields */
1861 lp->version = chip_ids[i].id;
1862 lp->revision = revision;
1863 lp->tx_fifo_kb = tx_fifo_kb;
1864 /* Reverse calculate the RX FIFO size from the TX */
1865 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1866 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1868 /* Set the automatic flow control values */
1869 switch(lp->tx_fifo_kb) {
1871 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1872 * AFC_LO is AFC_HI/2
1873 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1875 case 2:/* 13440 Rx Data Fifo Size */
1876 lp->afc_cfg=0x008C46AF;break;
1877 case 3:/* 12480 Rx Data Fifo Size */
1878 lp->afc_cfg=0x0082419F;break;
1879 case 4:/* 11520 Rx Data Fifo Size */
1880 lp->afc_cfg=0x00783C9F;break;
1881 case 5:/* 10560 Rx Data Fifo Size */
1882 lp->afc_cfg=0x006E374F;break;
1883 case 6:/* 9600 Rx Data Fifo Size */
1884 lp->afc_cfg=0x0064328F;break;
1885 case 7:/* 8640 Rx Data Fifo Size */
1886 lp->afc_cfg=0x005A2D7F;break;
1887 case 8:/* 7680 Rx Data Fifo Size */
1888 lp->afc_cfg=0x0050287F;break;
1889 case 9:/* 6720 Rx Data Fifo Size */
1890 lp->afc_cfg=0x0046236F;break;
1891 case 10:/* 5760 Rx Data Fifo Size */
1892 lp->afc_cfg=0x003C1E6F;break;
1893 case 11:/* 4800 Rx Data Fifo Size */
1894 lp->afc_cfg=0x0032195F;break;
1896 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1897 * AFC_LO is AFC_HI/2
1898 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1900 case 12:/* 3840 Rx Data Fifo Size */
1901 lp->afc_cfg=0x0024124F;break;
1902 case 13:/* 2880 Rx Data Fifo Size */
1903 lp->afc_cfg=0x0015073F;break;
1904 case 14:/* 1920 Rx Data Fifo Size */
1905 lp->afc_cfg=0x0006032F;break;
1907 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1912 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
1913 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1914 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1916 spin_lock_init(&lp->lock);
1918 /* Get the MAC address */
1919 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1921 /* now, reset the chip, and put it into a known state */
1925 * If dev->irq is 0, then the device has to be banged on to see
1928 * Specifying an IRQ is done with the assumption that the user knows
1929 * what (s)he is doing. No checking is done!!!!
1936 dev->irq = smc911x_findirq(dev);
1939 /* kick the card and try again */
1943 if (dev->irq == 0) {
1944 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1949 dev->irq = irq_canonicalize(dev->irq);
1951 /* Fill in the fields of the device structure with ethernet values. */
1954 dev->open = smc911x_open;
1955 dev->stop = smc911x_close;
1956 dev->hard_start_xmit = smc911x_hard_start_xmit;
1957 dev->tx_timeout = smc911x_timeout;
1958 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1959 dev->set_multicast_list = smc911x_set_multicast_list;
1960 dev->ethtool_ops = &smc911x_ethtool_ops;
1961 #ifdef CONFIG_NET_POLL_CONTROLLER
1962 dev->poll_controller = smc911x_poll_controller;
1965 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1966 lp->mii.phy_id_mask = 0x1f;
1967 lp->mii.reg_num_mask = 0x1f;
1968 lp->mii.force_media = 0;
1969 lp->mii.full_duplex = 0;
1971 lp->mii.mdio_read = smc911x_phy_read;
1972 lp->mii.mdio_write = smc911x_phy_write;
1975 * Locate the phy, if any.
1977 smc911x_phy_detect(dev);
1979 /* Set default parameters */
1980 lp->msg_enable = NETIF_MSG_LINK;
1981 lp->ctl_rfduplx = 1;
1982 lp->ctl_rspeed = 100;
1984 #ifdef SMC_DYNAMIC_BUS_CONFIG
1985 irq_flags = lp->cfg.irq_flags;
1987 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1991 retval = request_irq(dev->irq, &smc911x_interrupt,
1992 irq_flags, dev->name, dev);
1997 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
1998 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
1999 lp->rxdma_active = 0;
2000 lp->txdma_active = 0;
2001 dev->dma = lp->rxdma;
2004 retval = register_netdev(dev);
2006 /* now, print out the card info, in a short format.. */
2007 printk("%s: %s (rev %d) at %#lx IRQ %d",
2008 dev->name, version_string, lp->revision,
2009 dev->base_addr, dev->irq);
2012 if (lp->rxdma != -1)
2013 printk(" RXDMA %d ", lp->rxdma);
2015 if (lp->txdma != -1)
2016 printk("TXDMA %d", lp->txdma);
2019 if (!is_valid_ether_addr(dev->dev_addr)) {
2020 printk("%s: Invalid ethernet MAC address. Please "
2021 "set using ifconfig\n", dev->name);
2023 /* Print the Ethernet address */
2024 printk("%s: Ethernet addr: ", dev->name);
2025 for (i = 0; i < 5; i++)
2026 printk("%2.2x:", dev->dev_addr[i]);
2027 printk("%2.2x\n", dev->dev_addr[5]);
2030 if (lp->phy_type == 0) {
2031 PRINTK("%s: No PHY found\n", dev->name);
2032 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2033 PRINTK("%s: LAN911x Internal PHY\n", dev->name);
2035 PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
2042 if (lp->rxdma != -1) {
2043 SMC_DMA_FREE(dev, lp->rxdma);
2045 if (lp->txdma != -1) {
2046 SMC_DMA_FREE(dev, lp->txdma);
2054 * smc911x_init(void)
2057 * 0 --> there is a device
2058 * anything else, error
2060 static int smc911x_drv_probe(struct platform_device *pdev)
2062 struct smc911x_platdata *pd = pdev->dev.platform_data;
2063 struct net_device *ndev;
2064 struct resource *res;
2065 struct smc911x_local *lp;
2069 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2070 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2077 * Request the regions.
2079 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2084 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2086 printk("%s: could not allocate device.\n", CARDNAME);
2090 SET_NETDEV_DEV(ndev, &pdev->dev);
2092 ndev->dma = (unsigned char)-1;
2093 ndev->irq = platform_get_irq(pdev, 0);
2094 lp = netdev_priv(ndev);
2096 #ifdef SMC_DYNAMIC_BUS_CONFIG
2101 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2104 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2110 platform_set_drvdata(pdev, ndev);
2112 ndev->base_addr = res->start;
2113 ret = smc911x_probe(ndev);
2115 platform_set_drvdata(pdev, NULL);
2120 release_mem_region(res->start, SMC911X_IO_EXTENT);
2122 printk("%s: not found (%d).\n", CARDNAME, ret);
2126 lp->physaddr = res->start;
2127 lp->dev = &pdev->dev;
2134 static int smc911x_drv_remove(struct platform_device *pdev)
2136 struct net_device *ndev = platform_get_drvdata(pdev);
2137 struct smc911x_local *lp = netdev_priv(ndev);
2138 struct resource *res;
2140 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2141 platform_set_drvdata(pdev, NULL);
2143 unregister_netdev(ndev);
2145 free_irq(ndev->irq, ndev);
2149 if (lp->rxdma != -1) {
2150 SMC_DMA_FREE(dev, lp->rxdma);
2152 if (lp->txdma != -1) {
2153 SMC_DMA_FREE(dev, lp->txdma);
2158 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2159 release_mem_region(res->start, SMC911X_IO_EXTENT);
2165 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2167 struct net_device *ndev = platform_get_drvdata(dev);
2168 struct smc911x_local *lp = netdev_priv(ndev);
2170 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2172 if (netif_running(ndev)) {
2173 netif_device_detach(ndev);
2174 smc911x_shutdown(ndev);
2176 /* Set D2 - Energy detect only setting */
2177 SMC_SET_PMT_CTRL(lp, 2<<12);
2184 static int smc911x_drv_resume(struct platform_device *dev)
2186 struct net_device *ndev = platform_get_drvdata(dev);
2188 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2190 struct smc911x_local *lp = netdev_priv(ndev);
2192 if (netif_running(ndev)) {
2193 smc911x_reset(ndev);
2194 smc911x_enable(ndev);
2195 if (lp->phy_type != 0)
2196 smc911x_phy_configure(&lp->phy_configure);
2197 netif_device_attach(ndev);
2203 static struct platform_driver smc911x_driver = {
2204 .probe = smc911x_drv_probe,
2205 .remove = smc911x_drv_remove,
2206 .suspend = smc911x_drv_suspend,
2207 .resume = smc911x_drv_resume,
2210 .owner = THIS_MODULE,
2214 static int __init smc911x_init(void)
2216 return platform_driver_register(&smc911x_driver);
2219 static void __exit smc911x_cleanup(void)
2221 platform_driver_unregister(&smc911x_driver);
2224 module_init(smc911x_init);
2225 module_exit(smc911x_cleanup);