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 __mask = SMC_GET_INT_EN((lp)); \
160 SMC_SET_INT_EN((lp), __mask); \
163 /* this disables an interrupt from the interrupt mask register */
164 #define SMC_DISABLE_INT(lp, x) do { \
165 unsigned int __mask; \
166 __mask = SMC_GET_INT_EN((lp)); \
168 SMC_SET_INT_EN((lp), __mask); \
172 * this does a soft reset on the device
174 static void smc911x_reset(struct net_device
*dev
)
176 struct smc911x_local
*lp
= netdev_priv(dev
);
177 unsigned int reg
, timeout
=0, resets
=1, irq_cfg
;
180 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
182 /* Take out of PM setting first */
183 if ((SMC_GET_PMT_CTRL(lp
) & PMT_CTRL_READY_
) == 0) {
184 /* Write to the bytetest will take out of powerdown */
185 SMC_SET_BYTE_TEST(lp
, 0);
189 reg
= SMC_GET_PMT_CTRL(lp
) & PMT_CTRL_READY_
;
190 } while (--timeout
&& !reg
);
192 PRINTK("%s: smc911x_reset timeout waiting for PM restore\n", dev
->name
);
197 /* Disable all interrupts */
198 spin_lock_irqsave(&lp
->lock
, flags
);
199 SMC_SET_INT_EN(lp
, 0);
200 spin_unlock_irqrestore(&lp
->lock
, flags
);
203 SMC_SET_HW_CFG(lp
, HW_CFG_SRST_
);
207 reg
= SMC_GET_HW_CFG(lp
);
208 /* If chip indicates reset timeout then try again */
209 if (reg
& HW_CFG_SRST_TO_
) {
210 PRINTK("%s: chip reset timeout, retrying...\n", dev
->name
);
214 } while (--timeout
&& (reg
& HW_CFG_SRST_
));
217 PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev
->name
);
221 /* make sure EEPROM has finished loading before setting GPIO_CFG */
223 while ( timeout
-- && (SMC_GET_E2P_CMD(lp
) & E2P_CMD_EPC_BUSY_
)) {
227 PRINTK("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev
->name
);
231 /* Initialize interrupts */
232 SMC_SET_INT_EN(lp
, 0);
235 /* Reset the FIFO level and flow control settings */
236 SMC_SET_HW_CFG(lp
, (lp
->tx_fifo_kb
& 0xF) << 16);
237 //TODO: Figure out what appropriate pause time is
238 SMC_SET_FLOW(lp
, FLOW_FCPT_
| FLOW_FCEN_
);
239 SMC_SET_AFC_CFG(lp
, lp
->afc_cfg
);
242 /* Set to LED outputs */
243 SMC_SET_GPIO_CFG(lp
, 0x70070000);
246 * Deassert IRQ for 1*10us for edge type interrupts
247 * and drive IRQ pin push-pull
249 irq_cfg
= (1 << 24) | INT_CFG_IRQ_EN_
| INT_CFG_IRQ_TYPE_
;
250 #ifdef SMC_DYNAMIC_BUS_CONFIG
251 if (lp
->cfg
.irq_polarity
)
252 irq_cfg
|= INT_CFG_IRQ_POL_
;
254 SMC_SET_IRQ_CFG(lp
, irq_cfg
);
256 /* clear anything saved */
257 if (lp
->pending_tx_skb
!= NULL
) {
258 dev_kfree_skb (lp
->pending_tx_skb
);
259 lp
->pending_tx_skb
= NULL
;
260 dev
->stats
.tx_errors
++;
261 dev
->stats
.tx_aborted_errors
++;
266 * Enable Interrupts, Receive, and Transmit
268 static void smc911x_enable(struct net_device
*dev
)
270 struct smc911x_local
*lp
= netdev_priv(dev
);
271 unsigned mask
, cfg
, cr
;
274 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
276 spin_lock_irqsave(&lp
->lock
, flags
);
278 SMC_SET_MAC_ADDR(lp
, dev
->dev_addr
);
281 cfg
= SMC_GET_HW_CFG(lp
);
282 cfg
&= HW_CFG_TX_FIF_SZ_
| 0xFFF;
284 SMC_SET_HW_CFG(lp
, cfg
);
285 SMC_SET_FIFO_TDA(lp
, 0xFF);
286 /* Update TX stats on every 64 packets received or every 1 sec */
287 SMC_SET_FIFO_TSL(lp
, 64);
288 SMC_SET_GPT_CFG(lp
, GPT_CFG_TIMER_EN_
| 10000);
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_
);
295 /* Add 2 byte padding to start of packets */
296 SMC_SET_RX_CFG(lp
, (2<<8) & RX_CFG_RXDOFF_
);
298 /* Turn on receiver and enable RX */
299 if (cr
& MAC_CR_RXEN_
)
300 DBG(SMC_DEBUG_RX
, "%s: Receiver already enabled\n", dev
->name
);
302 SMC_SET_MAC_CR(lp
, cr
| MAC_CR_RXEN_
);
304 /* Interrupt on every received packet */
305 SMC_SET_FIFO_RSA(lp
, 0x01);
306 SMC_SET_FIFO_RSL(lp
, 0x00);
308 /* now, enable interrupts */
309 mask
= INT_EN_TDFA_EN_
| INT_EN_TSFL_EN_
| INT_EN_RSFL_EN_
|
310 INT_EN_GPT_INT_EN_
| INT_EN_RXDFH_INT_EN_
| INT_EN_RXE_EN_
|
312 if (IS_REV_A(lp
->revision
))
313 mask
|=INT_EN_RDFL_EN_
;
315 mask
|=INT_EN_RDFO_EN_
;
317 SMC_ENABLE_INT(lp
, mask
);
319 spin_unlock_irqrestore(&lp
->lock
, flags
);
323 * this puts the device in an inactive state
325 static void smc911x_shutdown(struct net_device
*dev
)
327 struct smc911x_local
*lp
= netdev_priv(dev
);
331 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", CARDNAME
, __func__
);
334 SMC_SET_INT_EN(lp
, 0);
336 /* Turn of Rx and TX */
337 spin_lock_irqsave(&lp
->lock
, flags
);
338 SMC_GET_MAC_CR(lp
, cr
);
339 cr
&= ~(MAC_CR_TXEN_
| MAC_CR_RXEN_
| MAC_CR_HBDIS_
);
340 SMC_SET_MAC_CR(lp
, cr
);
341 SMC_SET_TX_CFG(lp
, TX_CFG_STOP_TX_
);
342 spin_unlock_irqrestore(&lp
->lock
, flags
);
345 static inline void smc911x_drop_pkt(struct net_device
*dev
)
347 struct smc911x_local
*lp
= netdev_priv(dev
);
348 unsigned int fifo_count
, timeout
, reg
;
350 DBG(SMC_DEBUG_FUNC
| SMC_DEBUG_RX
, "%s: --> %s\n", CARDNAME
, __func__
);
351 fifo_count
= SMC_GET_RX_FIFO_INF(lp
) & 0xFFFF;
352 if (fifo_count
<= 4) {
353 /* Manually dump the packet data */
357 /* Fast forward through the bad packet */
358 SMC_SET_RX_DP_CTRL(lp
, RX_DP_CTRL_FFWD_BUSY_
);
362 reg
= SMC_GET_RX_DP_CTRL(lp
) & RX_DP_CTRL_FFWD_BUSY_
;
363 } while (--timeout
&& reg
);
365 PRINTK("%s: timeout waiting for RX fast forward\n", dev
->name
);
371 * This is the procedure to handle the receipt of a packet.
372 * It should be called after checking for packet presence in
373 * the RX status FIFO. It must be called with the spin lock
376 static inline void smc911x_rcv(struct net_device
*dev
)
378 struct smc911x_local
*lp
= netdev_priv(dev
);
379 unsigned int pkt_len
, status
;
383 DBG(SMC_DEBUG_FUNC
| SMC_DEBUG_RX
, "%s: --> %s\n",
384 dev
->name
, __func__
);
385 status
= SMC_GET_RX_STS_FIFO(lp
);
386 DBG(SMC_DEBUG_RX
, "%s: Rx pkt len %d status 0x%08x \n",
387 dev
->name
, (status
& 0x3fff0000) >> 16, status
& 0xc000ffff);
388 pkt_len
= (status
& RX_STS_PKT_LEN_
) >> 16;
389 if (status
& RX_STS_ES_
) {
390 /* Deal with a bad packet */
391 dev
->stats
.rx_errors
++;
392 if (status
& RX_STS_CRC_ERR_
)
393 dev
->stats
.rx_crc_errors
++;
395 if (status
& RX_STS_LEN_ERR_
)
396 dev
->stats
.rx_length_errors
++;
397 if (status
& RX_STS_MCAST_
)
398 dev
->stats
.multicast
++;
400 /* Remove the bad packet data from the RX FIFO */
401 smc911x_drop_pkt(dev
);
403 /* Receive a valid packet */
404 /* Alloc a buffer with extra room for DMA alignment */
405 skb
=dev_alloc_skb(pkt_len
+32);
406 if (unlikely(skb
== NULL
)) {
407 PRINTK( "%s: Low memory, rcvd packet dropped.\n",
409 dev
->stats
.rx_dropped
++;
410 smc911x_drop_pkt(dev
);
413 /* Align IP header to 32 bits
414 * Note that the device is configured to add a 2
415 * byte padding to the packet start, so we really
416 * want to write to the orignal data pointer */
419 skb_put(skb
,pkt_len
-4);
423 /* Lower the FIFO threshold if possible */
424 fifo
= SMC_GET_FIFO_INT(lp
);
425 if (fifo
& 0xFF) fifo
--;
426 DBG(SMC_DEBUG_RX
, "%s: Setting RX stat FIFO threshold to %d\n",
427 dev
->name
, fifo
& 0xff);
428 SMC_SET_FIFO_INT(lp
, fifo
);
430 SMC_SET_RX_CFG(lp
, RX_CFG_RX_END_ALGN16_
| ((2<<8) & RX_CFG_RXDOFF_
));
431 lp
->rxdma_active
= 1;
432 lp
->current_rx_skb
= skb
;
433 SMC_PULL_DATA(lp
, data
, (pkt_len
+2+15) & ~15);
434 /* Packet processing deferred to DMA RX interrupt */
437 SMC_SET_RX_CFG(lp
, RX_CFG_RX_END_ALGN4_
| ((2<<8) & RX_CFG_RXDOFF_
));
438 SMC_PULL_DATA(lp
, data
, pkt_len
+2+3);
440 DBG(SMC_DEBUG_PKTS
, "%s: Received packet\n", dev
->name
);
441 PRINT_PKT(data
, ((pkt_len
- 4) <= 64) ? pkt_len
- 4 : 64);
442 skb
->protocol
= eth_type_trans(skb
, dev
);
444 dev
->stats
.rx_packets
++;
445 dev
->stats
.rx_bytes
+= pkt_len
-4;
451 * This is called to actually send a packet to the chip.
453 static void smc911x_hardware_send_pkt(struct net_device
*dev
)
455 struct smc911x_local
*lp
= netdev_priv(dev
);
457 unsigned int cmdA
, cmdB
, len
;
460 DBG(SMC_DEBUG_FUNC
| SMC_DEBUG_TX
, "%s: --> %s\n", dev
->name
, __func__
);
461 BUG_ON(lp
->pending_tx_skb
== NULL
);
463 skb
= lp
->pending_tx_skb
;
464 lp
->pending_tx_skb
= NULL
;
466 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
467 /* cmdB {31:16] pkt tag [10:0] length */
469 /* 16 byte buffer alignment mode */
470 buf
= (char*)((u32
)(skb
->data
) & ~0xF);
471 len
= (skb
->len
+ 0xF + ((u32
)skb
->data
& 0xF)) & ~0xF;
472 cmdA
= (1<<24) | (((u32
)skb
->data
& 0xF)<<16) |
473 TX_CMD_A_INT_FIRST_SEG_
| TX_CMD_A_INT_LAST_SEG_
|
476 buf
= (char*)((u32
)skb
->data
& ~0x3);
477 len
= (skb
->len
+ 3 + ((u32
)skb
->data
& 3)) & ~0x3;
478 cmdA
= (((u32
)skb
->data
& 0x3) << 16) |
479 TX_CMD_A_INT_FIRST_SEG_
| TX_CMD_A_INT_LAST_SEG_
|
482 /* tag is packet length so we can use this in stats update later */
483 cmdB
= (skb
->len
<< 16) | (skb
->len
& 0x7FF);
485 DBG(SMC_DEBUG_TX
, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
486 dev
->name
, len
, len
, buf
, cmdA
, cmdB
);
487 SMC_SET_TX_FIFO(lp
, cmdA
);
488 SMC_SET_TX_FIFO(lp
, cmdB
);
490 DBG(SMC_DEBUG_PKTS
, "%s: Transmitted packet\n", dev
->name
);
491 PRINT_PKT(buf
, len
<= 64 ? len
: 64);
493 /* Send pkt via PIO or DMA */
495 lp
->current_tx_skb
= skb
;
496 SMC_PUSH_DATA(lp
, buf
, len
);
497 /* DMA complete IRQ will free buffer and set jiffies */
499 SMC_PUSH_DATA(lp
, buf
, len
);
500 dev
->trans_start
= jiffies
;
501 dev_kfree_skb_irq(skb
);
503 if (!lp
->tx_throttle
) {
504 netif_wake_queue(dev
);
506 SMC_ENABLE_INT(lp
, INT_EN_TDFA_EN_
| INT_EN_TSFL_EN_
);
510 * Since I am not sure if I will have enough room in the chip's ram
511 * to store the packet, I call this routine which either sends it
512 * now, or set the card to generates an interrupt when ready
515 static int smc911x_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
517 struct smc911x_local
*lp
= netdev_priv(dev
);
521 DBG(SMC_DEBUG_FUNC
| SMC_DEBUG_TX
, "%s: --> %s\n",
522 dev
->name
, __func__
);
524 spin_lock_irqsave(&lp
->lock
, flags
);
526 BUG_ON(lp
->pending_tx_skb
!= NULL
);
528 free
= SMC_GET_TX_FIFO_INF(lp
) & TX_FIFO_INF_TDFREE_
;
529 DBG(SMC_DEBUG_TX
, "%s: TX free space %d\n", dev
->name
, free
);
531 /* Turn off the flow when running out of space in FIFO */
532 if (free
<= SMC911X_TX_FIFO_LOW_THRESHOLD
) {
533 DBG(SMC_DEBUG_TX
, "%s: Disabling data flow due to low FIFO space (%d)\n",
535 /* Reenable when at least 1 packet of size MTU present */
536 SMC_SET_FIFO_TDA(lp
, (SMC911X_TX_FIFO_LOW_THRESHOLD
)/64);
538 netif_stop_queue(dev
);
541 /* Drop packets when we run out of space in TX FIFO
542 * Account for overhead required for:
544 * Tx command words 8 bytes
545 * Start offset 15 bytes
546 * End padding 15 bytes
548 if (unlikely(free
< (skb
->len
+ 8 + 15 + 15))) {
549 printk("%s: No Tx free space %d < %d\n",
550 dev
->name
, free
, skb
->len
);
551 lp
->pending_tx_skb
= NULL
;
552 dev
->stats
.tx_errors
++;
553 dev
->stats
.tx_dropped
++;
554 spin_unlock_irqrestore(&lp
->lock
, flags
);
561 /* If the DMA is already running then defer this packet Tx until
562 * the DMA IRQ starts it
564 if (lp
->txdma_active
) {
565 DBG(SMC_DEBUG_TX
| SMC_DEBUG_DMA
, "%s: Tx DMA running, deferring packet\n", dev
->name
);
566 lp
->pending_tx_skb
= skb
;
567 netif_stop_queue(dev
);
568 spin_unlock_irqrestore(&lp
->lock
, flags
);
571 DBG(SMC_DEBUG_TX
| SMC_DEBUG_DMA
, "%s: Activating Tx DMA\n", dev
->name
);
572 lp
->txdma_active
= 1;
576 lp
->pending_tx_skb
= skb
;
577 smc911x_hardware_send_pkt(dev
);
578 spin_unlock_irqrestore(&lp
->lock
, flags
);
584 * This handles a TX status interrupt, which is only called when:
585 * - a TX error occurred, or
586 * - TX of a packet completed.
588 static void smc911x_tx(struct net_device
*dev
)
590 struct smc911x_local
*lp
= netdev_priv(dev
);
591 unsigned int tx_status
;
593 DBG(SMC_DEBUG_FUNC
| SMC_DEBUG_TX
, "%s: --> %s\n",
594 dev
->name
, __func__
);
596 /* Collect the TX status */
597 while (((SMC_GET_TX_FIFO_INF(lp
) & TX_FIFO_INF_TSUSED_
) >> 16) != 0) {
598 DBG(SMC_DEBUG_TX
, "%s: Tx stat FIFO used 0x%04x\n",
600 (SMC_GET_TX_FIFO_INF(lp
) & TX_FIFO_INF_TSUSED_
) >> 16);
601 tx_status
= SMC_GET_TX_STS_FIFO(lp
);
602 dev
->stats
.tx_packets
++;
603 dev
->stats
.tx_bytes
+=tx_status
>>16;
604 DBG(SMC_DEBUG_TX
, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
605 dev
->name
, (tx_status
& 0xffff0000) >> 16,
606 tx_status
& 0x0000ffff);
607 /* count Tx errors, but ignore lost carrier errors when in
608 * full-duplex mode */
609 if ((tx_status
& TX_STS_ES_
) && !(lp
->ctl_rfduplx
&&
610 !(tx_status
& 0x00000306))) {
611 dev
->stats
.tx_errors
++;
613 if (tx_status
& TX_STS_MANY_COLL_
) {
614 dev
->stats
.collisions
+=16;
615 dev
->stats
.tx_aborted_errors
++;
617 dev
->stats
.collisions
+=(tx_status
& TX_STS_COLL_CNT_
) >> 3;
619 /* carrier error only has meaning for half-duplex communication */
620 if ((tx_status
& (TX_STS_LOC_
| TX_STS_NO_CARR_
)) &&
622 dev
->stats
.tx_carrier_errors
++;
624 if (tx_status
& TX_STS_LATE_COLL_
) {
625 dev
->stats
.collisions
++;
626 dev
->stats
.tx_aborted_errors
++;
632 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
634 * Reads a register from the MII Management serial interface
637 static int smc911x_phy_read(struct net_device
*dev
, int phyaddr
, int phyreg
)
639 struct smc911x_local
*lp
= netdev_priv(dev
);
640 unsigned int phydata
;
642 SMC_GET_MII(lp
, phyreg
, phyaddr
, phydata
);
644 DBG(SMC_DEBUG_MISC
, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
645 __func__
, phyaddr
, phyreg
, phydata
);
651 * Writes a register to the MII Management serial interface
653 static void smc911x_phy_write(struct net_device
*dev
, int phyaddr
, int phyreg
,
656 struct smc911x_local
*lp
= netdev_priv(dev
);
658 DBG(SMC_DEBUG_MISC
, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
659 __func__
, phyaddr
, phyreg
, phydata
);
661 SMC_SET_MII(lp
, phyreg
, phyaddr
, phydata
);
665 * Finds and reports the PHY address (115 and 117 have external
666 * PHY interface 118 has internal only
668 static void smc911x_phy_detect(struct net_device
*dev
)
670 struct smc911x_local
*lp
= netdev_priv(dev
);
672 unsigned int cfg
, id1
, id2
;
674 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
679 * Scan all 32 PHY addresses if necessary, starting at
680 * PHY#1 to PHY#31, and then PHY#0 last.
682 switch(lp
->version
) {
687 cfg
= SMC_GET_HW_CFG(lp
);
688 if (cfg
& HW_CFG_EXT_PHY_DET_
) {
689 cfg
&= ~HW_CFG_PHY_CLK_SEL_
;
690 cfg
|= HW_CFG_PHY_CLK_SEL_CLK_DIS_
;
691 SMC_SET_HW_CFG(lp
, cfg
);
692 udelay(10); /* Wait for clocks to stop */
694 cfg
|= HW_CFG_EXT_PHY_EN_
;
695 SMC_SET_HW_CFG(lp
, cfg
);
696 udelay(10); /* Wait for clocks to stop */
698 cfg
&= ~HW_CFG_PHY_CLK_SEL_
;
699 cfg
|= HW_CFG_PHY_CLK_SEL_EXT_PHY_
;
700 SMC_SET_HW_CFG(lp
, cfg
);
701 udelay(10); /* Wait for clocks to stop */
703 cfg
|= HW_CFG_SMI_SEL_
;
704 SMC_SET_HW_CFG(lp
, cfg
);
706 for (phyaddr
= 1; phyaddr
< 32; ++phyaddr
) {
708 /* Read the PHY identifiers */
709 SMC_GET_PHY_ID1(lp
, phyaddr
& 31, id1
);
710 SMC_GET_PHY_ID2(lp
, phyaddr
& 31, id2
);
712 /* Make sure it is a valid identifier */
713 if (id1
!= 0x0000 && id1
!= 0xffff &&
714 id1
!= 0x8000 && id2
!= 0x0000 &&
715 id2
!= 0xffff && id2
!= 0x8000) {
716 /* Save the PHY's address */
717 lp
->mii
.phy_id
= phyaddr
& 31;
718 lp
->phy_type
= id1
<< 16 | id2
;
723 /* Found an external PHY */
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 skb
->protocol
= eth_type_trans(skb
, dev
);
1234 dev
->stats
.rx_packets
++;
1235 dev
->stats
.rx_bytes
+= skb
->len
;
1238 spin_lock_irqsave(&lp
->lock
, flags
);
1239 pkts
= (SMC_GET_RX_FIFO_INF(lp
) & RX_FIFO_INF_RXSUSED_
) >> 16;
1243 lp
->rxdma_active
= 0;
1245 spin_unlock_irqrestore(&lp
->lock
, flags
);
1246 DBG(SMC_DEBUG_RX
| SMC_DEBUG_DMA
,
1247 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1250 #endif /* SMC_USE_DMA */
1252 #ifdef CONFIG_NET_POLL_CONTROLLER
1254 * Polling receive - used by netconsole and other diagnostic tools
1255 * to allow network i/o with interrupts disabled.
1257 static void smc911x_poll_controller(struct net_device
*dev
)
1259 disable_irq(dev
->irq
);
1260 smc911x_interrupt(dev
->irq
, dev
);
1261 enable_irq(dev
->irq
);
1265 /* Our watchdog timed out. Called by the networking layer */
1266 static void smc911x_timeout(struct net_device
*dev
)
1268 struct smc911x_local
*lp
= netdev_priv(dev
);
1270 unsigned long flags
;
1272 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1274 spin_lock_irqsave(&lp
->lock
, flags
);
1275 status
= SMC_GET_INT(lp
);
1276 mask
= SMC_GET_INT_EN(lp
);
1277 spin_unlock_irqrestore(&lp
->lock
, flags
);
1278 DBG(SMC_DEBUG_MISC
, "%s: INT 0x%02x MASK 0x%02x \n",
1279 dev
->name
, status
, mask
);
1281 /* Dump the current TX FIFO contents and restart */
1282 mask
= SMC_GET_TX_CFG(lp
);
1283 SMC_SET_TX_CFG(lp
, mask
| TX_CFG_TXS_DUMP_
| TX_CFG_TXD_DUMP_
);
1285 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1286 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1287 * which calls schedule(). Hence we use a work queue.
1289 if (lp
->phy_type
!= 0)
1290 schedule_work(&lp
->phy_configure
);
1292 /* We can accept TX packets again */
1293 dev
->trans_start
= jiffies
;
1294 netif_wake_queue(dev
);
1298 * This routine will, depending on the values passed to it,
1299 * either make it accept multicast packets, go into
1300 * promiscuous mode (for TCPDUMP and cousins) or accept
1301 * a select set of multicast packets
1303 static void smc911x_set_multicast_list(struct net_device
*dev
)
1305 struct smc911x_local
*lp
= netdev_priv(dev
);
1306 unsigned int multicast_table
[2];
1307 unsigned int mcr
, update_multicast
= 0;
1308 unsigned long flags
;
1310 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1312 spin_lock_irqsave(&lp
->lock
, flags
);
1313 SMC_GET_MAC_CR(lp
, mcr
);
1314 spin_unlock_irqrestore(&lp
->lock
, flags
);
1316 if (dev
->flags
& IFF_PROMISC
) {
1318 DBG(SMC_DEBUG_MISC
, "%s: RCR_PRMS\n", dev
->name
);
1319 mcr
|= MAC_CR_PRMS_
;
1322 * Here, I am setting this to accept all multicast packets.
1323 * I don't need to zero the multicast table, because the flag is
1324 * checked before the table is
1326 else if (dev
->flags
& IFF_ALLMULTI
|| dev
->mc_count
> 16) {
1327 DBG(SMC_DEBUG_MISC
, "%s: RCR_ALMUL\n", dev
->name
);
1328 mcr
|= MAC_CR_MCPAS_
;
1332 * This sets the internal hardware table to filter out unwanted
1333 * multicast packets before they take up memory.
1335 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1336 * address are the offset into the table. If that bit is 1, then the
1337 * multicast packet is accepted. Otherwise, it's dropped silently.
1339 * To use the 6 bits as an offset into the table, the high 1 bit is
1340 * the number of the 32 bit register, while the low 5 bits are the bit
1341 * within that register.
1343 else if (dev
->mc_count
) {
1345 struct dev_mc_list
*cur_addr
;
1347 /* Set the Hash perfec mode */
1348 mcr
|= MAC_CR_HPFILT_
;
1350 /* start with a table of all zeros: reject all */
1351 memset(multicast_table
, 0, sizeof(multicast_table
));
1353 cur_addr
= dev
->mc_list
;
1354 for (i
= 0; i
< dev
->mc_count
; i
++, cur_addr
= cur_addr
->next
) {
1357 /* do we have a pointer here? */
1360 /* make sure this is a multicast address -
1361 shouldn't this be a given if we have it here ? */
1362 if (!(*cur_addr
->dmi_addr
& 1))
1365 /* upper 6 bits are used as hash index */
1366 position
= ether_crc(ETH_ALEN
, cur_addr
->dmi_addr
)>>26;
1368 multicast_table
[position
>>5] |= 1 << (position
&0x1f);
1371 /* be sure I get rid of flags I might have set */
1372 mcr
&= ~(MAC_CR_PRMS_
| MAC_CR_MCPAS_
);
1374 /* now, the table can be loaded into the chipset */
1375 update_multicast
= 1;
1377 DBG(SMC_DEBUG_MISC
, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1379 mcr
&= ~(MAC_CR_PRMS_
| MAC_CR_MCPAS_
);
1382 * since I'm disabling all multicast entirely, I need to
1383 * clear the multicast list
1385 memset(multicast_table
, 0, sizeof(multicast_table
));
1386 update_multicast
= 1;
1389 spin_lock_irqsave(&lp
->lock
, flags
);
1390 SMC_SET_MAC_CR(lp
, mcr
);
1391 if (update_multicast
) {
1393 "%s: update mcast hash table 0x%08x 0x%08x\n",
1394 dev
->name
, multicast_table
[0], multicast_table
[1]);
1395 SMC_SET_HASHL(lp
, multicast_table
[0]);
1396 SMC_SET_HASHH(lp
, multicast_table
[1]);
1398 spin_unlock_irqrestore(&lp
->lock
, flags
);
1403 * Open and Initialize the board
1405 * Set up everything, reset the card, etc..
1408 smc911x_open(struct net_device
*dev
)
1410 struct smc911x_local
*lp
= netdev_priv(dev
);
1412 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1415 * Check that the address is valid. If its not, refuse
1416 * to bring the device up. The user must specify an
1417 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1419 if (!is_valid_ether_addr(dev
->dev_addr
)) {
1420 PRINTK("%s: no valid ethernet hw addr\n", __func__
);
1424 /* reset the hardware */
1427 /* Configure the PHY, initialize the link state */
1428 smc911x_phy_configure(&lp
->phy_configure
);
1430 /* Turn on Tx + Rx */
1431 smc911x_enable(dev
);
1433 netif_start_queue(dev
);
1441 * this makes the board clean up everything that it can
1442 * and not talk to the outside world. Caused by
1443 * an 'ifconfig ethX down'
1445 static int smc911x_close(struct net_device
*dev
)
1447 struct smc911x_local
*lp
= netdev_priv(dev
);
1449 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1451 netif_stop_queue(dev
);
1452 netif_carrier_off(dev
);
1454 /* clear everything */
1455 smc911x_shutdown(dev
);
1457 if (lp
->phy_type
!= 0) {
1458 /* We need to ensure that no calls to
1459 * smc911x_phy_configure are pending.
1461 cancel_work_sync(&lp
->phy_configure
);
1462 smc911x_phy_powerdown(dev
, lp
->mii
.phy_id
);
1465 if (lp
->pending_tx_skb
) {
1466 dev_kfree_skb(lp
->pending_tx_skb
);
1467 lp
->pending_tx_skb
= NULL
;
1477 smc911x_ethtool_getsettings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1479 struct smc911x_local
*lp
= netdev_priv(dev
);
1481 unsigned long flags
;
1483 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1487 if (lp
->phy_type
!= 0) {
1488 spin_lock_irqsave(&lp
->lock
, flags
);
1489 ret
= mii_ethtool_gset(&lp
->mii
, cmd
);
1490 spin_unlock_irqrestore(&lp
->lock
, flags
);
1492 cmd
->supported
= SUPPORTED_10baseT_Half
|
1493 SUPPORTED_10baseT_Full
|
1494 SUPPORTED_TP
| SUPPORTED_AUI
;
1496 if (lp
->ctl_rspeed
== 10)
1497 cmd
->speed
= SPEED_10
;
1498 else if (lp
->ctl_rspeed
== 100)
1499 cmd
->speed
= SPEED_100
;
1501 cmd
->autoneg
= AUTONEG_DISABLE
;
1502 if (lp
->mii
.phy_id
==1)
1503 cmd
->transceiver
= XCVR_INTERNAL
;
1505 cmd
->transceiver
= XCVR_EXTERNAL
;
1507 SMC_GET_PHY_SPECIAL(lp
, lp
->mii
.phy_id
, status
);
1509 (status
& (PHY_SPECIAL_SPD_10FULL_
| PHY_SPECIAL_SPD_100FULL_
)) ?
1510 DUPLEX_FULL
: DUPLEX_HALF
;
1518 smc911x_ethtool_setsettings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1520 struct smc911x_local
*lp
= netdev_priv(dev
);
1522 unsigned long flags
;
1524 if (lp
->phy_type
!= 0) {
1525 spin_lock_irqsave(&lp
->lock
, flags
);
1526 ret
= mii_ethtool_sset(&lp
->mii
, cmd
);
1527 spin_unlock_irqrestore(&lp
->lock
, flags
);
1529 if (cmd
->autoneg
!= AUTONEG_DISABLE
||
1530 cmd
->speed
!= SPEED_10
||
1531 (cmd
->duplex
!= DUPLEX_HALF
&& cmd
->duplex
!= DUPLEX_FULL
) ||
1532 (cmd
->port
!= PORT_TP
&& cmd
->port
!= PORT_AUI
))
1535 lp
->ctl_rfduplx
= cmd
->duplex
== DUPLEX_FULL
;
1544 smc911x_ethtool_getdrvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
1546 strncpy(info
->driver
, CARDNAME
, sizeof(info
->driver
));
1547 strncpy(info
->version
, version
, sizeof(info
->version
));
1548 strncpy(info
->bus_info
, dev
->dev
.parent
->bus_id
, sizeof(info
->bus_info
));
1551 static int smc911x_ethtool_nwayreset(struct net_device
*dev
)
1553 struct smc911x_local
*lp
= netdev_priv(dev
);
1555 unsigned long flags
;
1557 if (lp
->phy_type
!= 0) {
1558 spin_lock_irqsave(&lp
->lock
, flags
);
1559 ret
= mii_nway_restart(&lp
->mii
);
1560 spin_unlock_irqrestore(&lp
->lock
, flags
);
1566 static u32
smc911x_ethtool_getmsglevel(struct net_device
*dev
)
1568 struct smc911x_local
*lp
= netdev_priv(dev
);
1569 return lp
->msg_enable
;
1572 static void smc911x_ethtool_setmsglevel(struct net_device
*dev
, u32 level
)
1574 struct smc911x_local
*lp
= netdev_priv(dev
);
1575 lp
->msg_enable
= level
;
1578 static int smc911x_ethtool_getregslen(struct net_device
*dev
)
1580 /* System regs + MAC regs + PHY regs */
1581 return (((E2P_CMD
- ID_REV
)/4 + 1) +
1582 (WUCSR
- MAC_CR
)+1 + 32) * sizeof(u32
);
1585 static void smc911x_ethtool_getregs(struct net_device
*dev
,
1586 struct ethtool_regs
* regs
, void *buf
)
1588 struct smc911x_local
*lp
= netdev_priv(dev
);
1589 unsigned long flags
;
1591 u32
*data
= (u32
*)buf
;
1593 regs
->version
= lp
->version
;
1594 for(i
=ID_REV
;i
<=E2P_CMD
;i
+=4) {
1595 data
[j
++] = SMC_inl(lp
, i
);
1597 for(i
=MAC_CR
;i
<=WUCSR
;i
++) {
1598 spin_lock_irqsave(&lp
->lock
, flags
);
1599 SMC_GET_MAC_CSR(lp
, i
, reg
);
1600 spin_unlock_irqrestore(&lp
->lock
, flags
);
1603 for(i
=0;i
<=31;i
++) {
1604 spin_lock_irqsave(&lp
->lock
, flags
);
1605 SMC_GET_MII(lp
, i
, lp
->mii
.phy_id
, reg
);
1606 spin_unlock_irqrestore(&lp
->lock
, flags
);
1607 data
[j
++] = reg
& 0xFFFF;
1611 static int smc911x_ethtool_wait_eeprom_ready(struct net_device
*dev
)
1613 struct smc911x_local
*lp
= netdev_priv(dev
);
1614 unsigned int timeout
;
1617 e2p_cmd
= SMC_GET_E2P_CMD(lp
);
1618 for(timeout
=10;(e2p_cmd
& E2P_CMD_EPC_BUSY_
) && timeout
; timeout
--) {
1619 if (e2p_cmd
& E2P_CMD_EPC_TIMEOUT_
) {
1620 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1621 dev
->name
, __func__
);
1625 e2p_cmd
= SMC_GET_E2P_CMD(lp
);
1628 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1629 dev
->name
, __func__
);
1635 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device
*dev
,
1638 struct smc911x_local
*lp
= netdev_priv(dev
);
1641 if ((ret
= smc911x_ethtool_wait_eeprom_ready(dev
))!=0)
1643 SMC_SET_E2P_CMD(lp
, E2P_CMD_EPC_BUSY_
|
1644 ((cmd
) & (0x7<<28)) |
1649 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device
*dev
,
1652 struct smc911x_local
*lp
= netdev_priv(dev
);
1655 if ((ret
= smc911x_ethtool_wait_eeprom_ready(dev
))!=0)
1657 *data
= SMC_GET_E2P_DATA(lp
);
1661 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device
*dev
,
1664 struct smc911x_local
*lp
= netdev_priv(dev
);
1667 if ((ret
= smc911x_ethtool_wait_eeprom_ready(dev
))!=0)
1669 SMC_SET_E2P_DATA(lp
, data
);
1673 static int smc911x_ethtool_geteeprom(struct net_device
*dev
,
1674 struct ethtool_eeprom
*eeprom
, u8
*data
)
1676 u8 eebuf
[SMC911X_EEPROM_LEN
];
1679 for(i
=0;i
<SMC911X_EEPROM_LEN
;i
++) {
1680 if ((ret
=smc911x_ethtool_write_eeprom_cmd(dev
, E2P_CMD_EPC_CMD_READ_
, i
))!=0)
1682 if ((ret
=smc911x_ethtool_read_eeprom_byte(dev
, &eebuf
[i
]))!=0)
1685 memcpy(data
, eebuf
+eeprom
->offset
, eeprom
->len
);
1689 static int smc911x_ethtool_seteeprom(struct net_device
*dev
,
1690 struct ethtool_eeprom
*eeprom
, u8
*data
)
1695 if ((ret
=smc911x_ethtool_write_eeprom_cmd(dev
, E2P_CMD_EPC_CMD_EWEN_
, 0 ))!=0)
1697 for(i
=eeprom
->offset
;i
<(eeprom
->offset
+eeprom
->len
);i
++) {
1699 if ((ret
=smc911x_ethtool_write_eeprom_cmd(dev
, E2P_CMD_EPC_CMD_ERASE_
, i
))!=0)
1702 if ((ret
=smc911x_ethtool_write_eeprom_byte(dev
, *data
))!=0)
1704 if ((ret
=smc911x_ethtool_write_eeprom_cmd(dev
, E2P_CMD_EPC_CMD_WRITE_
, i
))!=0)
1710 static int smc911x_ethtool_geteeprom_len(struct net_device
*dev
)
1712 return SMC911X_EEPROM_LEN
;
1715 static const struct ethtool_ops smc911x_ethtool_ops
= {
1716 .get_settings
= smc911x_ethtool_getsettings
,
1717 .set_settings
= smc911x_ethtool_setsettings
,
1718 .get_drvinfo
= smc911x_ethtool_getdrvinfo
,
1719 .get_msglevel
= smc911x_ethtool_getmsglevel
,
1720 .set_msglevel
= smc911x_ethtool_setmsglevel
,
1721 .nway_reset
= smc911x_ethtool_nwayreset
,
1722 .get_link
= ethtool_op_get_link
,
1723 .get_regs_len
= smc911x_ethtool_getregslen
,
1724 .get_regs
= smc911x_ethtool_getregs
,
1725 .get_eeprom_len
= smc911x_ethtool_geteeprom_len
,
1726 .get_eeprom
= smc911x_ethtool_geteeprom
,
1727 .set_eeprom
= smc911x_ethtool_seteeprom
,
1733 * This routine has a simple purpose -- make the SMC chip generate an
1734 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1736 static int __init
smc911x_findirq(struct net_device
*dev
)
1738 struct smc911x_local
*lp
= netdev_priv(dev
);
1740 unsigned long cookie
;
1742 DBG(SMC_DEBUG_FUNC
, "--> %s\n", __func__
);
1744 cookie
= probe_irq_on();
1747 * Force a SW interrupt
1750 SMC_SET_INT_EN(lp
, INT_EN_SW_INT_EN_
);
1753 * Wait until positive that the interrupt has been generated
1758 int_status
= SMC_GET_INT_EN(lp
);
1759 if (int_status
& INT_EN_SW_INT_EN_
)
1760 break; /* got the interrupt */
1761 } while (--timeout
);
1764 * there is really nothing that I can do here if timeout fails,
1765 * as autoirq_report will return a 0 anyway, which is what I
1766 * want in this case. Plus, the clean up is needed in both
1770 /* and disable all interrupts again */
1771 SMC_SET_INT_EN(lp
, 0);
1773 /* and return what I found */
1774 return probe_irq_off(cookie
);
1778 * Function: smc911x_probe(unsigned long ioaddr)
1781 * Tests to see if a given ioaddr points to an SMC911x chip.
1782 * Returns a 0 on success
1785 * (1) see if the endian word is OK
1786 * (1) see if I recognize the chip ID in the appropriate register
1788 * Here I do typical initialization tasks.
1790 * o Initialize the structure if needed
1791 * o print out my vanity message if not done so already
1792 * o print out what type of hardware is detected
1793 * o print out the ethernet address
1795 * o set up my private data
1796 * o configure the dev structure with my subroutines
1797 * o actually GRAB the irq.
1800 static int __init
smc911x_probe(struct net_device
*dev
)
1802 struct smc911x_local
*lp
= netdev_priv(dev
);
1804 unsigned int val
, chip_id
, revision
;
1805 const char *version_string
;
1806 unsigned long irq_flags
;
1808 DBG(SMC_DEBUG_FUNC
, "%s: --> %s\n", dev
->name
, __func__
);
1810 /* First, see if the endian word is recognized */
1811 val
= SMC_GET_BYTE_TEST(lp
);
1812 DBG(SMC_DEBUG_MISC
, "%s: endian probe returned 0x%04x\n", CARDNAME
, val
);
1813 if (val
!= 0x87654321) {
1814 printk(KERN_ERR
"Invalid chip endian 0x08%x\n",val
);
1820 * check if the revision register is something that I
1821 * recognize. These might need to be added to later,
1822 * as future revisions could be added.
1824 chip_id
= SMC_GET_PN(lp
);
1825 DBG(SMC_DEBUG_MISC
, "%s: id probe returned 0x%04x\n", CARDNAME
, chip_id
);
1826 for(i
=0;chip_ids
[i
].id
!= 0; i
++) {
1827 if (chip_ids
[i
].id
== chip_id
) break;
1829 if (!chip_ids
[i
].id
) {
1830 printk(KERN_ERR
"Unknown chip ID %04x\n", chip_id
);
1834 version_string
= chip_ids
[i
].name
;
1836 revision
= SMC_GET_REV(lp
);
1837 DBG(SMC_DEBUG_MISC
, "%s: revision = 0x%04x\n", CARDNAME
, revision
);
1839 /* At this point I'll assume that the chip is an SMC911x. */
1840 DBG(SMC_DEBUG_MISC
, "%s: Found a %s\n", CARDNAME
, chip_ids
[i
].name
);
1842 /* Validate the TX FIFO size requested */
1843 if ((tx_fifo_kb
< 2) || (tx_fifo_kb
> 14)) {
1844 printk(KERN_ERR
"Invalid TX FIFO size requested %d\n", tx_fifo_kb
);
1849 /* fill in some of the fields */
1850 lp
->version
= chip_ids
[i
].id
;
1851 lp
->revision
= revision
;
1852 lp
->tx_fifo_kb
= tx_fifo_kb
;
1853 /* Reverse calculate the RX FIFO size from the TX */
1854 lp
->tx_fifo_size
=(lp
->tx_fifo_kb
<<10) - 512;
1855 lp
->rx_fifo_size
= ((0x4000 - 512 - lp
->tx_fifo_size
) / 16) * 15;
1857 /* Set the automatic flow control values */
1858 switch(lp
->tx_fifo_kb
) {
1860 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1861 * AFC_LO is AFC_HI/2
1862 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1864 case 2:/* 13440 Rx Data Fifo Size */
1865 lp
->afc_cfg
=0x008C46AF;break;
1866 case 3:/* 12480 Rx Data Fifo Size */
1867 lp
->afc_cfg
=0x0082419F;break;
1868 case 4:/* 11520 Rx Data Fifo Size */
1869 lp
->afc_cfg
=0x00783C9F;break;
1870 case 5:/* 10560 Rx Data Fifo Size */
1871 lp
->afc_cfg
=0x006E374F;break;
1872 case 6:/* 9600 Rx Data Fifo Size */
1873 lp
->afc_cfg
=0x0064328F;break;
1874 case 7:/* 8640 Rx Data Fifo Size */
1875 lp
->afc_cfg
=0x005A2D7F;break;
1876 case 8:/* 7680 Rx Data Fifo Size */
1877 lp
->afc_cfg
=0x0050287F;break;
1878 case 9:/* 6720 Rx Data Fifo Size */
1879 lp
->afc_cfg
=0x0046236F;break;
1880 case 10:/* 5760 Rx Data Fifo Size */
1881 lp
->afc_cfg
=0x003C1E6F;break;
1882 case 11:/* 4800 Rx Data Fifo Size */
1883 lp
->afc_cfg
=0x0032195F;break;
1885 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1886 * AFC_LO is AFC_HI/2
1887 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1889 case 12:/* 3840 Rx Data Fifo Size */
1890 lp
->afc_cfg
=0x0024124F;break;
1891 case 13:/* 2880 Rx Data Fifo Size */
1892 lp
->afc_cfg
=0x0015073F;break;
1893 case 14:/* 1920 Rx Data Fifo Size */
1894 lp
->afc_cfg
=0x0006032F;break;
1896 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1901 DBG(SMC_DEBUG_MISC
| SMC_DEBUG_TX
| SMC_DEBUG_RX
,
1902 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME
,
1903 lp
->tx_fifo_size
, lp
->rx_fifo_size
, lp
->afc_cfg
);
1905 spin_lock_init(&lp
->lock
);
1907 /* Get the MAC address */
1908 SMC_GET_MAC_ADDR(lp
, dev
->dev_addr
);
1910 /* now, reset the chip, and put it into a known state */
1914 * If dev->irq is 0, then the device has to be banged on to see
1917 * Specifying an IRQ is done with the assumption that the user knows
1918 * what (s)he is doing. No checking is done!!!!
1925 dev
->irq
= smc911x_findirq(dev
);
1928 /* kick the card and try again */
1932 if (dev
->irq
== 0) {
1933 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1938 dev
->irq
= irq_canonicalize(dev
->irq
);
1940 /* Fill in the fields of the device structure with ethernet values. */
1943 dev
->open
= smc911x_open
;
1944 dev
->stop
= smc911x_close
;
1945 dev
->hard_start_xmit
= smc911x_hard_start_xmit
;
1946 dev
->tx_timeout
= smc911x_timeout
;
1947 dev
->watchdog_timeo
= msecs_to_jiffies(watchdog
);
1948 dev
->set_multicast_list
= smc911x_set_multicast_list
;
1949 dev
->ethtool_ops
= &smc911x_ethtool_ops
;
1950 #ifdef CONFIG_NET_POLL_CONTROLLER
1951 dev
->poll_controller
= smc911x_poll_controller
;
1954 INIT_WORK(&lp
->phy_configure
, smc911x_phy_configure
);
1955 lp
->mii
.phy_id_mask
= 0x1f;
1956 lp
->mii
.reg_num_mask
= 0x1f;
1957 lp
->mii
.force_media
= 0;
1958 lp
->mii
.full_duplex
= 0;
1960 lp
->mii
.mdio_read
= smc911x_phy_read
;
1961 lp
->mii
.mdio_write
= smc911x_phy_write
;
1964 * Locate the phy, if any.
1966 smc911x_phy_detect(dev
);
1968 /* Set default parameters */
1969 lp
->msg_enable
= NETIF_MSG_LINK
;
1970 lp
->ctl_rfduplx
= 1;
1971 lp
->ctl_rspeed
= 100;
1973 #ifdef SMC_DYNAMIC_BUS_CONFIG
1974 irq_flags
= lp
->cfg
.irq_flags
;
1976 irq_flags
= IRQF_SHARED
| SMC_IRQ_SENSE
;
1980 retval
= request_irq(dev
->irq
, &smc911x_interrupt
,
1981 irq_flags
, dev
->name
, dev
);
1986 lp
->rxdma
= SMC_DMA_REQUEST(dev
, smc911x_rx_dma_irq
);
1987 lp
->txdma
= SMC_DMA_REQUEST(dev
, smc911x_tx_dma_irq
);
1988 lp
->rxdma_active
= 0;
1989 lp
->txdma_active
= 0;
1990 dev
->dma
= lp
->rxdma
;
1993 retval
= register_netdev(dev
);
1995 /* now, print out the card info, in a short format.. */
1996 printk("%s: %s (rev %d) at %#lx IRQ %d",
1997 dev
->name
, version_string
, lp
->revision
,
1998 dev
->base_addr
, dev
->irq
);
2001 if (lp
->rxdma
!= -1)
2002 printk(" RXDMA %d ", lp
->rxdma
);
2004 if (lp
->txdma
!= -1)
2005 printk("TXDMA %d", lp
->txdma
);
2008 if (!is_valid_ether_addr(dev
->dev_addr
)) {
2009 printk("%s: Invalid ethernet MAC address. Please "
2010 "set using ifconfig\n", dev
->name
);
2012 /* Print the Ethernet address */
2013 printk("%s: Ethernet addr: ", dev
->name
);
2014 for (i
= 0; i
< 5; i
++)
2015 printk("%2.2x:", dev
->dev_addr
[i
]);
2016 printk("%2.2x\n", dev
->dev_addr
[5]);
2019 if (lp
->phy_type
== 0) {
2020 PRINTK("%s: No PHY found\n", dev
->name
);
2021 } else if ((lp
->phy_type
& ~0xff) == LAN911X_INTERNAL_PHY_ID
) {
2022 PRINTK("%s: LAN911x Internal PHY\n", dev
->name
);
2024 PRINTK("%s: External PHY 0x%08x\n", dev
->name
, lp
->phy_type
);
2031 if (lp
->rxdma
!= -1) {
2032 SMC_DMA_FREE(dev
, lp
->rxdma
);
2034 if (lp
->txdma
!= -1) {
2035 SMC_DMA_FREE(dev
, lp
->txdma
);
2043 * smc911x_init(void)
2046 * 0 --> there is a device
2047 * anything else, error
2049 static int smc911x_drv_probe(struct platform_device
*pdev
)
2051 #ifdef SMC_DYNAMIC_BUS_CONFIG
2052 struct smc911x_platdata
*pd
= pdev
->dev
.platform_data
;
2054 struct net_device
*ndev
;
2055 struct resource
*res
;
2056 struct smc911x_local
*lp
;
2060 DBG(SMC_DEBUG_FUNC
, "--> %s\n", __func__
);
2061 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
2068 * Request the regions.
2070 if (!request_mem_region(res
->start
, SMC911X_IO_EXTENT
, CARDNAME
)) {
2075 ndev
= alloc_etherdev(sizeof(struct smc911x_local
));
2077 printk("%s: could not allocate device.\n", CARDNAME
);
2081 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
2083 ndev
->dma
= (unsigned char)-1;
2084 ndev
->irq
= platform_get_irq(pdev
, 0);
2085 lp
= netdev_priv(ndev
);
2087 #ifdef SMC_DYNAMIC_BUS_CONFIG
2092 memcpy(&lp
->cfg
, pd
, sizeof(lp
->cfg
));
2095 addr
= ioremap(res
->start
, SMC911X_IO_EXTENT
);
2101 platform_set_drvdata(pdev
, ndev
);
2103 ndev
->base_addr
= res
->start
;
2104 ret
= smc911x_probe(ndev
);
2106 platform_set_drvdata(pdev
, NULL
);
2111 release_mem_region(res
->start
, SMC911X_IO_EXTENT
);
2113 printk("%s: not found (%d).\n", CARDNAME
, ret
);
2117 lp
->physaddr
= res
->start
;
2118 lp
->dev
= &pdev
->dev
;
2125 static int smc911x_drv_remove(struct platform_device
*pdev
)
2127 struct net_device
*ndev
= platform_get_drvdata(pdev
);
2128 struct smc911x_local
*lp
= netdev_priv(ndev
);
2129 struct resource
*res
;
2131 DBG(SMC_DEBUG_FUNC
, "--> %s\n", __func__
);
2132 platform_set_drvdata(pdev
, NULL
);
2134 unregister_netdev(ndev
);
2136 free_irq(ndev
->irq
, ndev
);
2140 if (lp
->rxdma
!= -1) {
2141 SMC_DMA_FREE(dev
, lp
->rxdma
);
2143 if (lp
->txdma
!= -1) {
2144 SMC_DMA_FREE(dev
, lp
->txdma
);
2149 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
2150 release_mem_region(res
->start
, SMC911X_IO_EXTENT
);
2156 static int smc911x_drv_suspend(struct platform_device
*dev
, pm_message_t state
)
2158 struct net_device
*ndev
= platform_get_drvdata(dev
);
2159 struct smc911x_local
*lp
= netdev_priv(ndev
);
2161 DBG(SMC_DEBUG_FUNC
, "--> %s\n", __func__
);
2163 if (netif_running(ndev
)) {
2164 netif_device_detach(ndev
);
2165 smc911x_shutdown(ndev
);
2167 /* Set D2 - Energy detect only setting */
2168 SMC_SET_PMT_CTRL(lp
, 2<<12);
2175 static int smc911x_drv_resume(struct platform_device
*dev
)
2177 struct net_device
*ndev
= platform_get_drvdata(dev
);
2179 DBG(SMC_DEBUG_FUNC
, "--> %s\n", __func__
);
2181 struct smc911x_local
*lp
= netdev_priv(ndev
);
2183 if (netif_running(ndev
)) {
2184 smc911x_reset(ndev
);
2185 if (lp
->phy_type
!= 0)
2186 smc911x_phy_configure(&lp
->phy_configure
);
2187 smc911x_enable(ndev
);
2188 netif_device_attach(ndev
);
2194 static struct platform_driver smc911x_driver
= {
2195 .probe
= smc911x_drv_probe
,
2196 .remove
= smc911x_drv_remove
,
2197 .suspend
= smc911x_drv_suspend
,
2198 .resume
= smc911x_drv_resume
,
2201 .owner
= THIS_MODULE
,
2205 static int __init
smc911x_init(void)
2207 return platform_driver_register(&smc911x_driver
);
2210 static void __exit
smc911x_cleanup(void)
2212 platform_driver_unregister(&smc911x_driver
);
2215 module_init(smc911x_init
);
2216 module_exit(smc911x_cleanup
);