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authorSteve Glendinning <steve.glendinning@smsc.com>2008-10-02 01:27:57 -0400
committerDavid S. Miller <davem@davemloft.net>2008-10-08 19:44:18 -0400
commit2f7ca802bdae2ca41022618391c70c2876d92190 (patch)
treea95c21f8826b7c46e492f5eb00a6bdb8129391c6 /drivers/net
parent2e888103295f47b8fcbf7e9bb8c5da97dd2ecd76 (diff)
net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver
Attached is a driver for SMSC's LAN9500 USB2.0 10/100 ethernet adapter. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/usb/Kconfig8
-rw-r--r--drivers/net/usb/Makefile1
-rw-r--r--drivers/net/usb/smsc95xx.c1225
-rw-r--r--drivers/net/usb/smsc95xx.h253
4 files changed, 1487 insertions, 0 deletions
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 0973b6e37024..8ee21030e9ac 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -188,6 +188,14 @@ config USB_NET_DM9601
188 This option adds support for Davicom DM9601 based USB 1.1 188 This option adds support for Davicom DM9601 based USB 1.1
189 10/100 Ethernet adapters. 189 10/100 Ethernet adapters.
190 190
191config USB_NET_SMSC95XX
192 tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
193 depends on USB_USBNET
194 select CRC32
195 help
196 This option adds support for SMSC LAN95XX based USB 2.0
197 10/100 Ethernet adapters.
198
191config USB_NET_GL620A 199config USB_NET_GL620A
192 tristate "GeneSys GL620USB-A based cables" 200 tristate "GeneSys GL620USB-A based cables"
193 depends on USB_USBNET 201 depends on USB_USBNET
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 24800c157f98..6ce218dee135 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_USB_HSO) += hso.o
10obj-$(CONFIG_USB_NET_AX8817X) += asix.o 10obj-$(CONFIG_USB_NET_AX8817X) += asix.o
11obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o 11obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
12obj-$(CONFIG_USB_NET_DM9601) += dm9601.o 12obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
13obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o
13obj-$(CONFIG_USB_NET_GL620A) += gl620a.o 14obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
14obj-$(CONFIG_USB_NET_NET1080) += net1080.o 15obj-$(CONFIG_USB_NET_NET1080) += net1080.o
15obj-$(CONFIG_USB_NET_PLUSB) += plusb.o 16obj-$(CONFIG_USB_NET_PLUSB) += plusb.o
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
new file mode 100644
index 000000000000..412bde6217c0
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.c
@@ -0,0 +1,1225 @@
1 /***************************************************************************
2 *
3 * Copyright (C) 2007-2008 SMSC
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 *
19 *****************************************************************************/
20
21#include <linux/module.h>
22#include <linux/kmod.h>
23#include <linux/init.h>
24#include <linux/netdevice.h>
25#include <linux/etherdevice.h>
26#include <linux/ethtool.h>
27#include <linux/mii.h>
28#include <linux/usb.h>
29#include <linux/crc32.h>
30#include <linux/usb/usbnet.h>
31#include "smsc95xx.h"
32
33#define SMSC_CHIPNAME "smsc95xx"
34#define SMSC_DRIVER_VERSION "1.0.3"
35#define HS_USB_PKT_SIZE (512)
36#define FS_USB_PKT_SIZE (64)
37#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
38#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
39#define DEFAULT_BULK_IN_DELAY (0x00002000)
40#define MAX_SINGLE_PACKET_SIZE (2048)
41#define LAN95XX_EEPROM_MAGIC (0x9500)
42#define EEPROM_MAC_OFFSET (0x01)
43#define DEFAULT_RX_CSUM_ENABLE (true)
44#define SMSC95XX_INTERNAL_PHY_ID (1)
45#define SMSC95XX_TX_OVERHEAD (8)
46#define FLOW_CTRL_TX (1)
47#define FLOW_CTRL_RX (2)
48
49struct smsc95xx_priv {
50 u32 mac_cr;
51 spinlock_t mac_cr_lock;
52 bool use_rx_csum;
53};
54
55struct usb_context {
56 struct usb_ctrlrequest req;
57 struct completion notify;
58 struct usbnet *dev;
59};
60
61int turbo_mode = true;
62module_param(turbo_mode, bool, 0644);
63MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
64
65static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
66{
67 u32 *buf = kmalloc(4, GFP_KERNEL);
68 int ret;
69
70 BUG_ON(!dev);
71
72 if (!buf)
73 return -ENOMEM;
74
75 ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
76 USB_VENDOR_REQUEST_READ_REGISTER,
77 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
78 00, index, buf, 4, USB_CTRL_GET_TIMEOUT);
79
80 if (unlikely(ret < 0))
81 devwarn(dev, "Failed to read register index 0x%08x", index);
82
83 le32_to_cpus(buf);
84 *data = *buf;
85 kfree(buf);
86
87 return ret;
88}
89
90static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
91{
92 u32 *buf = kmalloc(4, GFP_KERNEL);
93 int ret;
94
95 BUG_ON(!dev);
96
97 if (!buf)
98 return -ENOMEM;
99
100 *buf = data;
101 cpu_to_le32s(buf);
102
103 ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
104 USB_VENDOR_REQUEST_WRITE_REGISTER,
105 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
106 00, index, buf, 4, USB_CTRL_SET_TIMEOUT);
107
108 if (unlikely(ret < 0))
109 devwarn(dev, "Failed to write register index 0x%08x", index);
110
111 kfree(buf);
112
113 return ret;
114}
115
116/* Loop until the read is completed with timeout
117 * called with phy_mutex held */
118static int smsc95xx_phy_wait_not_busy(struct usbnet *dev)
119{
120 unsigned long start_time = jiffies;
121 u32 val;
122
123 do {
124 smsc95xx_read_reg(dev, MII_ADDR, &val);
125 if (!(val & MII_BUSY_))
126 return 0;
127 } while (!time_after(jiffies, start_time + HZ));
128
129 return -EIO;
130}
131
132static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
133{
134 struct usbnet *dev = netdev_priv(netdev);
135 u32 val, addr;
136
137 mutex_lock(&dev->phy_mutex);
138
139 /* confirm MII not busy */
140 if (smsc95xx_phy_wait_not_busy(dev)) {
141 devwarn(dev, "MII is busy in smsc95xx_mdio_read");
142 mutex_unlock(&dev->phy_mutex);
143 return -EIO;
144 }
145
146 /* set the address, index & direction (read from PHY) */
147 phy_id &= dev->mii.phy_id_mask;
148 idx &= dev->mii.reg_num_mask;
149 addr = (phy_id << 11) | (idx << 6) | MII_READ_;
150 smsc95xx_write_reg(dev, MII_ADDR, addr);
151
152 if (smsc95xx_phy_wait_not_busy(dev)) {
153 devwarn(dev, "Timed out reading MII reg %02X", idx);
154 mutex_unlock(&dev->phy_mutex);
155 return -EIO;
156 }
157
158 smsc95xx_read_reg(dev, MII_DATA, &val);
159
160 mutex_unlock(&dev->phy_mutex);
161
162 return (u16)(val & 0xFFFF);
163}
164
165static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
166 int regval)
167{
168 struct usbnet *dev = netdev_priv(netdev);
169 u32 val, addr;
170
171 mutex_lock(&dev->phy_mutex);
172
173 /* confirm MII not busy */
174 if (smsc95xx_phy_wait_not_busy(dev)) {
175 devwarn(dev, "MII is busy in smsc95xx_mdio_write");
176 mutex_unlock(&dev->phy_mutex);
177 return;
178 }
179
180 val = regval;
181 smsc95xx_write_reg(dev, MII_DATA, val);
182
183 /* set the address, index & direction (write to PHY) */
184 phy_id &= dev->mii.phy_id_mask;
185 idx &= dev->mii.reg_num_mask;
186 addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
187 smsc95xx_write_reg(dev, MII_ADDR, addr);
188
189 if (smsc95xx_phy_wait_not_busy(dev))
190 devwarn(dev, "Timed out writing MII reg %02X", idx);
191
192 mutex_unlock(&dev->phy_mutex);
193}
194
195static int smsc95xx_wait_eeprom(struct usbnet *dev)
196{
197 unsigned long start_time = jiffies;
198 u32 val;
199
200 do {
201 smsc95xx_read_reg(dev, E2P_CMD, &val);
202 if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
203 break;
204 udelay(40);
205 } while (!time_after(jiffies, start_time + HZ));
206
207 if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
208 devwarn(dev, "EEPROM read operation timeout");
209 return -EIO;
210 }
211
212 return 0;
213}
214
215static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
216{
217 unsigned long start_time = jiffies;
218 u32 val;
219
220 do {
221 smsc95xx_read_reg(dev, E2P_CMD, &val);
222
223 if (!(val & E2P_CMD_LOADED_)) {
224 devwarn(dev, "No EEPROM present");
225 return -EIO;
226 }
227
228 if (!(val & E2P_CMD_BUSY_))
229 return 0;
230
231 udelay(40);
232 } while (!time_after(jiffies, start_time + HZ));
233
234 devwarn(dev, "EEPROM is busy");
235 return -EIO;
236}
237
238static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
239 u8 *data)
240{
241 u32 val;
242 int i, ret;
243
244 BUG_ON(!dev);
245 BUG_ON(!data);
246
247 ret = smsc95xx_eeprom_confirm_not_busy(dev);
248 if (ret)
249 return ret;
250
251 for (i = 0; i < length; i++) {
252 val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
253 smsc95xx_write_reg(dev, E2P_CMD, val);
254
255 ret = smsc95xx_wait_eeprom(dev);
256 if (ret < 0)
257 return ret;
258
259 smsc95xx_read_reg(dev, E2P_DATA, &val);
260
261 data[i] = val & 0xFF;
262 offset++;
263 }
264
265 return 0;
266}
267
268static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
269 u8 *data)
270{
271 u32 val;
272 int i, ret;
273
274 BUG_ON(!dev);
275 BUG_ON(!data);
276
277 ret = smsc95xx_eeprom_confirm_not_busy(dev);
278 if (ret)
279 return ret;
280
281 /* Issue write/erase enable command */
282 val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
283 smsc95xx_write_reg(dev, E2P_CMD, val);
284
285 ret = smsc95xx_wait_eeprom(dev);
286 if (ret < 0)
287 return ret;
288
289 for (i = 0; i < length; i++) {
290
291 /* Fill data register */
292 val = data[i];
293 smsc95xx_write_reg(dev, E2P_DATA, val);
294
295 /* Send "write" command */
296 val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
297 smsc95xx_write_reg(dev, E2P_CMD, val);
298
299 ret = smsc95xx_wait_eeprom(dev);
300 if (ret < 0)
301 return ret;
302
303 offset++;
304 }
305
306 return 0;
307}
308
309static void smsc95xx_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
310{
311 struct usb_context *usb_context = urb->context;
312 struct usbnet *dev = usb_context->dev;
313
314 if (urb->status < 0)
315 devwarn(dev, "async callback failed with %d", urb->status);
316
317 complete(&usb_context->notify);
318
319 kfree(usb_context);
320 usb_free_urb(urb);
321}
322
323static int smsc95xx_write_reg_async(struct usbnet *dev, u32 index, u32 *data)
324{
325 struct usb_context *usb_context;
326 int status;
327 struct urb *urb;
328 const u32 size = 4;
329
330 urb = usb_alloc_urb(0, GFP_ATOMIC);
331 if (!urb) {
332 devwarn(dev, "Error allocating URB");
333 return -ENOMEM;
334 }
335
336 usb_context = kmalloc(sizeof(struct usb_context), GFP_ATOMIC);
337 if (usb_context == NULL) {
338 devwarn(dev, "Error allocating control msg");
339 usb_free_urb(urb);
340 return -ENOMEM;
341 }
342
343 usb_context->req.bRequestType =
344 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
345 usb_context->req.bRequest = USB_VENDOR_REQUEST_WRITE_REGISTER;
346 usb_context->req.wValue = 00;
347 usb_context->req.wIndex = cpu_to_le32(index);
348 usb_context->req.wLength = cpu_to_le32(size);
349 init_completion(&usb_context->notify);
350
351 usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0),
352 (void *)&usb_context->req, data, size,
353 (usb_complete_t)smsc95xx_async_cmd_callback,
354 (void *)usb_context);
355
356 status = usb_submit_urb(urb, GFP_ATOMIC);
357 if (status < 0) {
358 devwarn(dev, "Error submitting control msg, sts=%d", status);
359 kfree(usb_context);
360 usb_free_urb(urb);
361 }
362
363 return status;
364}
365
366/* returns hash bit number for given MAC address
367 * example:
368 * 01 00 5E 00 00 01 -> returns bit number 31 */
369static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
370{
371 return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
372}
373
374static void smsc95xx_set_multicast(struct net_device *netdev)
375{
376 struct usbnet *dev = netdev_priv(netdev);
377 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
378 u32 hash_hi = 0;
379 u32 hash_lo = 0;
380 unsigned long flags;
381
382 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
383
384 if (dev->net->flags & IFF_PROMISC) {
385 if (netif_msg_drv(dev))
386 devdbg(dev, "promiscuous mode enabled");
387 pdata->mac_cr |= MAC_CR_PRMS_;
388 pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
389 } else if (dev->net->flags & IFF_ALLMULTI) {
390 if (netif_msg_drv(dev))
391 devdbg(dev, "receive all multicast enabled");
392 pdata->mac_cr |= MAC_CR_MCPAS_;
393 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
394 } else if (dev->net->mc_count > 0) {
395 struct dev_mc_list *mc_list = dev->net->mc_list;
396 int count = 0;
397
398 pdata->mac_cr |= MAC_CR_HPFILT_;
399 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
400
401 while (mc_list) {
402 count++;
403 if (mc_list->dmi_addrlen == ETH_ALEN) {
404 u32 bitnum = smsc95xx_hash(mc_list->dmi_addr);
405 u32 mask = 0x01 << (bitnum & 0x1F);
406 if (bitnum & 0x20)
407 hash_hi |= mask;
408 else
409 hash_lo |= mask;
410 } else {
411 devwarn(dev, "dmi_addrlen != 6");
412 }
413 mc_list = mc_list->next;
414 }
415
416 if (count != ((u32)dev->net->mc_count))
417 devwarn(dev, "mc_count != dev->mc_count");
418
419 if (netif_msg_drv(dev))
420 devdbg(dev, "HASHH=0x%08X, HASHL=0x%08X", hash_hi,
421 hash_lo);
422 } else {
423 if (netif_msg_drv(dev))
424 devdbg(dev, "receive own packets only");
425 pdata->mac_cr &=
426 ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
427 }
428
429 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
430
431 /* Initiate async writes, as we can't wait for completion here */
432 smsc95xx_write_reg_async(dev, HASHH, &hash_hi);
433 smsc95xx_write_reg_async(dev, HASHL, &hash_lo);
434 smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
435}
436
437static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv)
438{
439 u8 cap = 0;
440
441 if (lcladv & ADVERTISE_PAUSE_CAP) {
442 if (lcladv & ADVERTISE_PAUSE_ASYM) {
443 if (rmtadv & LPA_PAUSE_CAP)
444 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
445 else if (rmtadv & LPA_PAUSE_ASYM)
446 cap = FLOW_CTRL_RX;
447 } else {
448 if (rmtadv & LPA_PAUSE_CAP)
449 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
450 }
451 } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
452 if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
453 cap = FLOW_CTRL_TX;
454 }
455
456 return cap;
457}
458
459static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
460 u16 lcladv, u16 rmtadv)
461{
462 u32 flow, afc_cfg = 0;
463
464 int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
465 if (ret < 0) {
466 devwarn(dev, "error reading AFC_CFG");
467 return;
468 }
469
470 if (duplex == DUPLEX_FULL) {
471 u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv);
472
473 if (cap & FLOW_CTRL_RX)
474 flow = 0xFFFF0002;
475 else
476 flow = 0;
477
478 if (cap & FLOW_CTRL_TX)
479 afc_cfg |= 0xF;
480 else
481 afc_cfg &= ~0xF;
482
483 if (netif_msg_link(dev))
484 devdbg(dev, "rx pause %s, tx pause %s",
485 (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
486 (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
487 } else {
488 if (netif_msg_link(dev))
489 devdbg(dev, "half duplex");
490 flow = 0;
491 afc_cfg |= 0xF;
492 }
493
494 smsc95xx_write_reg(dev, FLOW, flow);
495 smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
496}
497
498static int smsc95xx_link_reset(struct usbnet *dev)
499{
500 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
501 struct mii_if_info *mii = &dev->mii;
502 struct ethtool_cmd ecmd;
503 unsigned long flags;
504 u16 lcladv, rmtadv;
505 u32 intdata;
506
507 /* clear interrupt status */
508 smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
509 intdata = 0xFFFFFFFF;
510 smsc95xx_write_reg(dev, INT_STS, intdata);
511
512 mii_check_media(mii, 1, 1);
513 mii_ethtool_gset(&dev->mii, &ecmd);
514 lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
515 rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
516
517 if (netif_msg_link(dev))
518 devdbg(dev, "speed: %d duplex: %d lcladv: %04x rmtadv: %04x",
519 ecmd.speed, ecmd.duplex, lcladv, rmtadv);
520
521 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
522 if (ecmd.duplex != DUPLEX_FULL) {
523 pdata->mac_cr &= ~MAC_CR_FDPX_;
524 pdata->mac_cr |= MAC_CR_RCVOWN_;
525 } else {
526 pdata->mac_cr &= ~MAC_CR_RCVOWN_;
527 pdata->mac_cr |= MAC_CR_FDPX_;
528 }
529 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
530
531 smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
532
533 smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
534
535 return 0;
536}
537
538static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
539{
540 u32 intdata;
541
542 if (urb->actual_length != 4) {
543 devwarn(dev, "unexpected urb length %d", urb->actual_length);
544 return;
545 }
546
547 memcpy(&intdata, urb->transfer_buffer, 4);
548 le32_to_cpus(intdata);
549
550 if (netif_msg_link(dev))
551 devdbg(dev, "intdata: 0x%08X", intdata);
552
553 if (intdata & INT_ENP_PHY_INT_)
554 usbnet_defer_kevent(dev, EVENT_LINK_RESET);
555 else
556 devwarn(dev, "unexpected interrupt, intdata=0x%08X", intdata);
557}
558
559/* Enable or disable Rx checksum offload engine */
560static int smsc95xx_set_rx_csum(struct usbnet *dev, bool enable)
561{
562 u32 read_buf;
563 int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
564 if (ret < 0) {
565 devwarn(dev, "Failed to read COE_CR: %d", ret);
566 return ret;
567 }
568
569 if (enable)
570 read_buf |= Rx_COE_EN_;
571 else
572 read_buf &= ~Rx_COE_EN_;
573
574 ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
575 if (ret < 0) {
576 devwarn(dev, "Failed to write COE_CR: %d", ret);
577 return ret;
578 }
579
580 if (netif_msg_hw(dev))
581 devdbg(dev, "COE_CR = 0x%08x", read_buf);
582 return 0;
583}
584
585static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
586{
587 return MAX_EEPROM_SIZE;
588}
589
590static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
591 struct ethtool_eeprom *ee, u8 *data)
592{
593 struct usbnet *dev = netdev_priv(netdev);
594
595 ee->magic = LAN95XX_EEPROM_MAGIC;
596
597 return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
598}
599
600static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
601 struct ethtool_eeprom *ee, u8 *data)
602{
603 struct usbnet *dev = netdev_priv(netdev);
604
605 if (ee->magic != LAN95XX_EEPROM_MAGIC) {
606 devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
607 ee->magic);
608 return -EINVAL;
609 }
610
611 return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
612}
613
614static u32 smsc95xx_ethtool_get_rx_csum(struct net_device *netdev)
615{
616 struct usbnet *dev = netdev_priv(netdev);
617 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
618
619 return pdata->use_rx_csum;
620}
621
622static int smsc95xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
623{
624 struct usbnet *dev = netdev_priv(netdev);
625 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
626
627 pdata->use_rx_csum = !!val;
628
629 return smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
630}
631
632static struct ethtool_ops smsc95xx_ethtool_ops = {
633 .get_link = usbnet_get_link,
634 .nway_reset = usbnet_nway_reset,
635 .get_drvinfo = usbnet_get_drvinfo,
636 .get_msglevel = usbnet_get_msglevel,
637 .set_msglevel = usbnet_set_msglevel,
638 .get_settings = usbnet_get_settings,
639 .set_settings = usbnet_set_settings,
640 .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
641 .get_eeprom = smsc95xx_ethtool_get_eeprom,
642 .set_eeprom = smsc95xx_ethtool_set_eeprom,
643 .get_rx_csum = smsc95xx_ethtool_get_rx_csum,
644 .set_rx_csum = smsc95xx_ethtool_set_rx_csum,
645};
646
647static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
648{
649 struct usbnet *dev = netdev_priv(netdev);
650
651 if (!netif_running(netdev))
652 return -EINVAL;
653
654 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
655}
656
657static void smsc95xx_init_mac_address(struct usbnet *dev)
658{
659 /* try reading mac address from EEPROM */
660 if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
661 dev->net->dev_addr) == 0) {
662 if (is_valid_ether_addr(dev->net->dev_addr)) {
663 /* eeprom values are valid so use them */
664 if (netif_msg_ifup(dev))
665 devdbg(dev, "MAC address read from EEPROM");
666 return;
667 }
668 }
669
670 /* no eeprom, or eeprom values are invalid. generate random MAC */
671 random_ether_addr(dev->net->dev_addr);
672 if (netif_msg_ifup(dev))
673 devdbg(dev, "MAC address set to random_ether_addr");
674}
675
676static int smsc95xx_set_mac_address(struct usbnet *dev)
677{
678 u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
679 dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
680 u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
681 int ret;
682
683 ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
684 if (ret < 0) {
685 devwarn(dev, "Failed to write ADDRL: %d", ret);
686 return ret;
687 }
688
689 ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
690 if (ret < 0) {
691 devwarn(dev, "Failed to write ADDRH: %d", ret);
692 return ret;
693 }
694
695 return 0;
696}
697
698/* starts the TX path */
699static void smsc95xx_start_tx_path(struct usbnet *dev)
700{
701 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
702 unsigned long flags;
703 u32 reg_val;
704
705 /* Enable Tx at MAC */
706 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
707 pdata->mac_cr |= MAC_CR_TXEN_;
708 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
709
710 smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
711
712 /* Enable Tx at SCSRs */
713 reg_val = TX_CFG_ON_;
714 smsc95xx_write_reg(dev, TX_CFG, reg_val);
715}
716
717/* Starts the Receive path */
718static void smsc95xx_start_rx_path(struct usbnet *dev)
719{
720 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
721 unsigned long flags;
722
723 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
724 pdata->mac_cr |= MAC_CR_RXEN_;
725 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
726
727 smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
728}
729
730static int smsc95xx_phy_initialize(struct usbnet *dev)
731{
732 /* Initialize MII structure */
733 dev->mii.dev = dev->net;
734 dev->mii.mdio_read = smsc95xx_mdio_read;
735 dev->mii.mdio_write = smsc95xx_mdio_write;
736 dev->mii.phy_id_mask = 0x1f;
737 dev->mii.reg_num_mask = 0x1f;
738 dev->mii.phy_id = SMSC95XX_INTERNAL_PHY_ID;
739
740 smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
741 smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
742 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
743 ADVERTISE_PAUSE_ASYM);
744
745 /* read to clear */
746 smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
747
748 smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
749 PHY_INT_MASK_DEFAULT_);
750 mii_nway_restart(&dev->mii);
751
752 if (netif_msg_ifup(dev))
753 devdbg(dev, "phy initialised succesfully");
754 return 0;
755}
756
757static int smsc95xx_reset(struct usbnet *dev)
758{
759 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
760 u32 read_buf, write_buf, burst_cap;
761 int ret = 0, timeout;
762 DECLARE_MAC_BUF(mac);
763
764 if (netif_msg_ifup(dev))
765 devdbg(dev, "entering smsc95xx_reset");
766
767 write_buf = HW_CFG_LRST_;
768 ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
769 if (ret < 0) {
770 devwarn(dev, "Failed to write HW_CFG_LRST_ bit in HW_CFG "
771 "register, ret = %d", ret);
772 return ret;
773 }
774
775 timeout = 0;
776 do {
777 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
778 if (ret < 0) {
779 devwarn(dev, "Failed to read HW_CFG: %d", ret);
780 return ret;
781 }
782 msleep(10);
783 timeout++;
784 } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
785
786 if (timeout >= 100) {
787 devwarn(dev, "timeout waiting for completion of Lite Reset");
788 return ret;
789 }
790
791 write_buf = PM_CTL_PHY_RST_;
792 ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
793 if (ret < 0) {
794 devwarn(dev, "Failed to write PM_CTRL: %d", ret);
795 return ret;
796 }
797
798 timeout = 0;
799 do {
800 ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
801 if (ret < 0) {
802 devwarn(dev, "Failed to read PM_CTRL: %d", ret);
803 return ret;
804 }
805 msleep(10);
806 timeout++;
807 } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
808
809 if (timeout >= 100) {
810 devwarn(dev, "timeout waiting for PHY Reset");
811 return ret;
812 }
813
814 smsc95xx_init_mac_address(dev);
815
816 ret = smsc95xx_set_mac_address(dev);
817 if (ret < 0)
818 return ret;
819
820 if (netif_msg_ifup(dev))
821 devdbg(dev, "MAC Address: %s",
822 print_mac(mac, dev->net->dev_addr));
823
824 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
825 if (ret < 0) {
826 devwarn(dev, "Failed to read HW_CFG: %d", ret);
827 return ret;
828 }
829
830 if (netif_msg_ifup(dev))
831 devdbg(dev, "Read Value from HW_CFG : 0x%08x", read_buf);
832
833 read_buf |= HW_CFG_BIR_;
834
835 ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
836 if (ret < 0) {
837 devwarn(dev, "Failed to write HW_CFG_BIR_ bit in HW_CFG "
838 "register, ret = %d", ret);
839 return ret;
840 }
841
842 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
843 if (ret < 0) {
844 devwarn(dev, "Failed to read HW_CFG: %d", ret);
845 return ret;
846 }
847 if (netif_msg_ifup(dev))
848 devdbg(dev, "Read Value from HW_CFG after writing "
849 "HW_CFG_BIR_: 0x%08x", read_buf);
850
851 if (!turbo_mode) {
852 burst_cap = 0;
853 dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
854 } else if (dev->udev->speed == USB_SPEED_HIGH) {
855 burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
856 dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
857 } else {
858 burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
859 dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
860 }
861
862 if (netif_msg_ifup(dev))
863 devdbg(dev, "rx_urb_size=%ld", (ulong)dev->rx_urb_size);
864
865 ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
866 if (ret < 0) {
867 devwarn(dev, "Failed to write BURST_CAP: %d", ret);
868 return ret;
869 }
870
871 ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
872 if (ret < 0) {
873 devwarn(dev, "Failed to read BURST_CAP: %d", ret);
874 return ret;
875 }
876 if (netif_msg_ifup(dev))
877 devdbg(dev, "Read Value from BURST_CAP after writing: 0x%08x",
878 read_buf);
879
880 read_buf = DEFAULT_BULK_IN_DELAY;
881 ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
882 if (ret < 0) {
883 devwarn(dev, "ret = %d", ret);
884 return ret;
885 }
886
887 ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
888 if (ret < 0) {
889 devwarn(dev, "Failed to read BULK_IN_DLY: %d", ret);
890 return ret;
891 }
892 if (netif_msg_ifup(dev))
893 devdbg(dev, "Read Value from BULK_IN_DLY after writing: "
894 "0x%08x", read_buf);
895
896 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
897 if (ret < 0) {
898 devwarn(dev, "Failed to read HW_CFG: %d", ret);
899 return ret;
900 }
901 if (netif_msg_ifup(dev))
902 devdbg(dev, "Read Value from HW_CFG: 0x%08x", read_buf);
903
904 if (turbo_mode)
905 read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
906
907 read_buf &= ~HW_CFG_RXDOFF_;
908
909 /* set Rx data offset=2, Make IP header aligns on word boundary. */
910 read_buf |= NET_IP_ALIGN << 9;
911
912 ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
913 if (ret < 0) {
914 devwarn(dev, "Failed to write HW_CFG register, ret=%d", ret);
915 return ret;
916 }
917
918 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
919 if (ret < 0) {
920 devwarn(dev, "Failed to read HW_CFG: %d", ret);
921 return ret;
922 }
923 if (netif_msg_ifup(dev))
924 devdbg(dev, "Read Value from HW_CFG after writing: 0x%08x",
925 read_buf);
926
927 write_buf = 0xFFFFFFFF;
928 ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
929 if (ret < 0) {
930 devwarn(dev, "Failed to write INT_STS register, ret=%d", ret);
931 return ret;
932 }
933
934 ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
935 if (ret < 0) {
936 devwarn(dev, "Failed to read ID_REV: %d", ret);
937 return ret;
938 }
939 if (netif_msg_ifup(dev))
940 devdbg(dev, "ID_REV = 0x%08x", read_buf);
941
942 /* Init Tx */
943 write_buf = 0;
944 ret = smsc95xx_write_reg(dev, FLOW, write_buf);
945 if (ret < 0) {
946 devwarn(dev, "Failed to write FLOW: %d", ret);
947 return ret;
948 }
949
950 read_buf = AFC_CFG_DEFAULT;
951 ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
952 if (ret < 0) {
953 devwarn(dev, "Failed to write AFC_CFG: %d", ret);
954 return ret;
955 }
956
957 /* Don't need mac_cr_lock during initialisation */
958 ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
959 if (ret < 0) {
960 devwarn(dev, "Failed to read MAC_CR: %d", ret);
961 return ret;
962 }
963
964 /* Init Rx */
965 /* Set Vlan */
966 write_buf = (u32)ETH_P_8021Q;
967 ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
968 if (ret < 0) {
969 devwarn(dev, "Failed to write VAN1: %d", ret);
970 return ret;
971 }
972
973 /* Enable or disable Rx checksum offload engine */
974 ret = smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
975 if (ret < 0) {
976 devwarn(dev, "Failed to set Rx csum offload: %d", ret);
977 return ret;
978 }
979
980 smsc95xx_set_multicast(dev->net);
981
982 if (smsc95xx_phy_initialize(dev) < 0)
983 return -EIO;
984
985 ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
986 if (ret < 0) {
987 devwarn(dev, "Failed to read INT_EP_CTL: %d", ret);
988 return ret;
989 }
990
991 /* enable PHY interrupts */
992 read_buf |= INT_EP_CTL_PHY_INT_;
993
994 ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
995 if (ret < 0) {
996 devwarn(dev, "Failed to write INT_EP_CTL: %d", ret);
997 return ret;
998 }
999
1000 smsc95xx_start_tx_path(dev);
1001 smsc95xx_start_rx_path(dev);
1002
1003 if (netif_msg_ifup(dev))
1004 devdbg(dev, "smsc95xx_reset, return 0");
1005 return 0;
1006}
1007
1008static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
1009{
1010 struct smsc95xx_priv *pdata = NULL;
1011 int ret;
1012
1013 printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
1014
1015 ret = usbnet_get_endpoints(dev, intf);
1016 if (ret < 0) {
1017 devwarn(dev, "usbnet_get_endpoints failed: %d", ret);
1018 return ret;
1019 }
1020
1021 dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
1022 GFP_KERNEL);
1023
1024 pdata = (struct smsc95xx_priv *)(dev->data[0]);
1025 if (!pdata) {
1026 devwarn(dev, "Unable to allocate struct smsc95xx_priv");
1027 return -ENOMEM;
1028 }
1029
1030 spin_lock_init(&pdata->mac_cr_lock);
1031
1032 pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
1033
1034 /* Init all registers */
1035 ret = smsc95xx_reset(dev);
1036
1037 dev->net->do_ioctl = smsc95xx_ioctl;
1038 dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1039 dev->net->set_multicast_list = smsc95xx_set_multicast;
1040 dev->net->flags |= IFF_MULTICAST;
1041 dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD;
1042 return 0;
1043}
1044
1045static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
1046{
1047 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1048 if (pdata) {
1049 if (netif_msg_ifdown(dev))
1050 devdbg(dev, "free pdata");
1051 kfree(pdata);
1052 pdata = NULL;
1053 dev->data[0] = 0;
1054 }
1055}
1056
1057static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
1058{
1059 skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
1060 skb->ip_summed = CHECKSUM_COMPLETE;
1061 skb_trim(skb, skb->len - 2);
1062}
1063
1064static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1065{
1066 struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1067
1068 while (skb->len > 0) {
1069 u32 header, align_count;
1070 struct sk_buff *ax_skb;
1071 unsigned char *packet;
1072 u16 size;
1073
1074 memcpy(&header, skb->data, sizeof(header));
1075 le32_to_cpus(&header);
1076 skb_pull(skb, 4 + NET_IP_ALIGN);
1077 packet = skb->data;
1078
1079 /* get the packet length */
1080 size = (u16)((header & RX_STS_FL_) >> 16);
1081 align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
1082
1083 if (unlikely(header & RX_STS_ES_)) {
1084 if (netif_msg_rx_err(dev))
1085 devdbg(dev, "Error header=0x%08x", header);
1086 dev->stats.rx_errors++;
1087 dev->stats.rx_dropped++;
1088
1089 if (header & RX_STS_CRC_) {
1090 dev->stats.rx_crc_errors++;
1091 } else {
1092 if (header & (RX_STS_TL_ | RX_STS_RF_))
1093 dev->stats.rx_frame_errors++;
1094
1095 if ((header & RX_STS_LE_) &&
1096 (!(header & RX_STS_FT_)))
1097 dev->stats.rx_length_errors++;
1098 }
1099 } else {
1100 /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
1101 if (unlikely(size > (ETH_FRAME_LEN + 12))) {
1102 if (netif_msg_rx_err(dev))
1103 devdbg(dev, "size err header=0x%08x",
1104 header);
1105 return 0;
1106 }
1107
1108 /* last frame in this batch */
1109 if (skb->len == size) {
1110 if (pdata->use_rx_csum)
1111 smsc95xx_rx_csum_offload(skb);
1112
1113 skb->truesize = size + sizeof(struct sk_buff);
1114
1115 return 1;
1116 }
1117
1118 ax_skb = skb_clone(skb, GFP_ATOMIC);
1119 if (unlikely(!ax_skb)) {
1120 devwarn(dev, "Error allocating skb");
1121 return 0;
1122 }
1123
1124 ax_skb->len = size;
1125 ax_skb->data = packet;
1126 skb_set_tail_pointer(ax_skb, size);
1127
1128 if (pdata->use_rx_csum)
1129 smsc95xx_rx_csum_offload(ax_skb);
1130
1131 ax_skb->truesize = size + sizeof(struct sk_buff);
1132
1133 usbnet_skb_return(dev, ax_skb);
1134 }
1135
1136 skb_pull(skb, size);
1137
1138 /* padding bytes before the next frame starts */
1139 if (skb->len)
1140 skb_pull(skb, align_count);
1141 }
1142
1143 if (unlikely(skb->len < 0)) {
1144 devwarn(dev, "invalid rx length<0 %d", skb->len);
1145 return 0;
1146 }
1147
1148 return 1;
1149}
1150
1151static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
1152 struct sk_buff *skb, gfp_t flags)
1153{
1154 u32 tx_cmd_a, tx_cmd_b;
1155
1156 if (skb_headroom(skb) < SMSC95XX_TX_OVERHEAD) {
1157 struct sk_buff *skb2 = skb_copy_expand(skb,
1158 SMSC95XX_TX_OVERHEAD, 0, flags);
1159 dev_kfree_skb_any(skb);
1160 skb = skb2;
1161 if (!skb)
1162 return NULL;
1163 }
1164
1165 skb_push(skb, 4);
1166 tx_cmd_b = (u32)(skb->len - 4);
1167 cpu_to_le32s(&tx_cmd_b);
1168 memcpy(skb->data, &tx_cmd_b, 4);
1169
1170 skb_push(skb, 4);
1171 tx_cmd_a = (u32)(skb->len - 8) | TX_CMD_A_FIRST_SEG_ |
1172 TX_CMD_A_LAST_SEG_;
1173 cpu_to_le32s(&tx_cmd_a);
1174 memcpy(skb->data, &tx_cmd_a, 4);
1175
1176 return skb;
1177}
1178
1179static const struct driver_info smsc95xx_info = {
1180 .description = "smsc95xx USB 2.0 Ethernet",
1181 .bind = smsc95xx_bind,
1182 .unbind = smsc95xx_unbind,
1183 .link_reset = smsc95xx_link_reset,
1184 .reset = smsc95xx_reset,
1185 .rx_fixup = smsc95xx_rx_fixup,
1186 .tx_fixup = smsc95xx_tx_fixup,
1187 .status = smsc95xx_status,
1188 .flags = FLAG_ETHER,
1189};
1190
1191static const struct usb_device_id products[] = {
1192 {
1193 /* SMSC9500 USB Ethernet Device */
1194 USB_DEVICE(0x0424, 0x9500),
1195 .driver_info = (unsigned long) &smsc95xx_info,
1196 },
1197 { }, /* END */
1198};
1199MODULE_DEVICE_TABLE(usb, products);
1200
1201static struct usb_driver smsc95xx_driver = {
1202 .name = "smsc95xx",
1203 .id_table = products,
1204 .probe = usbnet_probe,
1205 .suspend = usbnet_suspend,
1206 .resume = usbnet_resume,
1207 .disconnect = usbnet_disconnect,
1208};
1209
1210static int __init smsc95xx_init(void)
1211{
1212 return usb_register(&smsc95xx_driver);
1213}
1214module_init(smsc95xx_init);
1215
1216static void __exit smsc95xx_exit(void)
1217{
1218 usb_deregister(&smsc95xx_driver);
1219}
1220module_exit(smsc95xx_exit);
1221
1222MODULE_AUTHOR("Nancy Lin");
1223MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>");
1224MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
1225MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h
new file mode 100644
index 000000000000..66b5c84f302e
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.h
@@ -0,0 +1,253 @@
1 /***************************************************************************
2 *
3 * Copyright (C) 2007-2008 SMSC
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 *
19 *****************************************************************************/
20
21#ifndef _SMSC95XX_H
22#define _SMSC95XX_H
23
24/* Tx command words */
25#define TX_CMD_A_DATA_OFFSET_ (0x001F0000)
26#define TX_CMD_A_FIRST_SEG_ (0x00002000)
27#define TX_CMD_A_LAST_SEG_ (0x00001000)
28#define TX_CMD_A_BUF_SIZE_ (0x000007FF)
29
30#define TX_CMD_B_CSUM_ENABLE (0x00004000)
31#define TX_CMD_B_ADD_CRC_DISABLE_ (0x00002000)
32#define TX_CMD_B_DISABLE_PADDING_ (0x00001000)
33#define TX_CMD_B_PKT_BYTE_LENGTH_ (0x000007FF)
34
35/* Rx status word */
36#define RX_STS_FF_ (0x40000000) /* Filter Fail */
37#define RX_STS_FL_ (0x3FFF0000) /* Frame Length */
38#define RX_STS_ES_ (0x00008000) /* Error Summary */
39#define RX_STS_BF_ (0x00002000) /* Broadcast Frame */
40#define RX_STS_LE_ (0x00001000) /* Length Error */
41#define RX_STS_RF_ (0x00000800) /* Runt Frame */
42#define RX_STS_MF_ (0x00000400) /* Multicast Frame */
43#define RX_STS_TL_ (0x00000080) /* Frame too long */
44#define RX_STS_CS_ (0x00000040) /* Collision Seen */
45#define RX_STS_FT_ (0x00000020) /* Frame Type */
46#define RX_STS_RW_ (0x00000010) /* Receive Watchdog */
47#define RX_STS_ME_ (0x00000008) /* Mii Error */
48#define RX_STS_DB_ (0x00000004) /* Dribbling */
49#define RX_STS_CRC_ (0x00000002) /* CRC Error */
50
51/* SCSRs */
52#define ID_REV (0x00)
53#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000)
54#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF)
55#define ID_REV_CHIP_ID_9500_ (0x9500)
56
57#define INT_STS (0x08)
58#define INT_STS_TX_STOP_ (0x00020000)
59#define INT_STS_RX_STOP_ (0x00010000)
60#define INT_STS_PHY_INT_ (0x00008000)
61#define INT_STS_TXE_ (0x00004000)
62#define INT_STS_TDFU_ (0x00002000)
63#define INT_STS_TDFO_ (0x00001000)
64#define INT_STS_RXDF_ (0x00000800)
65#define INT_STS_GPIOS_ (0x000007FF)
66
67#define RX_CFG (0x0C)
68#define RX_FIFO_FLUSH_ (0x00000001)
69
70#define TX_CFG (0x10)
71#define TX_CFG_ON_ (0x00000004)
72#define TX_CFG_STOP_ (0x00000002)
73#define TX_CFG_FIFO_FLUSH_ (0x00000001)
74
75#define HW_CFG (0x14)
76#define HW_CFG_BIR_ (0x00001000)
77#define HW_CFG_LEDB_ (0x00000800)
78#define HW_CFG_RXDOFF_ (0x00000600)
79#define HW_CFG_DRP_ (0x00000040)
80#define HW_CFG_MEF_ (0x00000020)
81#define HW_CFG_LRST_ (0x00000008)
82#define HW_CFG_PSEL_ (0x00000004)
83#define HW_CFG_BCE_ (0x00000002)
84#define HW_CFG_SRST_ (0x00000001)
85
86#define PM_CTRL (0x20)
87#define PM_CTL_DEV_RDY_ (0x00000080)
88#define PM_CTL_SUS_MODE_ (0x00000060)
89#define PM_CTL_SUS_MODE_0 (0x00000000)
90#define PM_CTL_SUS_MODE_1 (0x00000020)
91#define PM_CTL_SUS_MODE_2 (0x00000060)
92#define PM_CTL_PHY_RST_ (0x00000010)
93#define PM_CTL_WOL_EN_ (0x00000008)
94#define PM_CTL_ED_EN_ (0x00000004)
95#define PM_CTL_WUPS_ (0x00000003)
96#define PM_CTL_WUPS_NO_ (0x00000000)
97#define PM_CTL_WUPS_ED_ (0x00000001)
98#define PM_CTL_WUPS_WOL_ (0x00000002)
99#define PM_CTL_WUPS_MULTI_ (0x00000003)
100
101#define LED_GPIO_CFG (0x24)
102
103#define GPIO_CFG (0x28)
104
105#define AFC_CFG (0x2C)
106
107/* Hi watermark = 15.5Kb (~10 mtu pkts) */
108/* low watermark = 3k (~2 mtu pkts) */
109/* backpressure duration = ~ 350us */
110/* Apply FC on any frame. */
111#define AFC_CFG_DEFAULT (0x00F830A1)
112
113#define E2P_CMD (0x30)
114#define E2P_CMD_BUSY_ (0x80000000)
115#define E2P_CMD_MASK_ (0x70000000)
116#define E2P_CMD_READ_ (0x00000000)
117#define E2P_CMD_EWDS_ (0x10000000)
118#define E2P_CMD_EWEN_ (0x20000000)
119#define E2P_CMD_WRITE_ (0x30000000)
120#define E2P_CMD_WRAL_ (0x40000000)
121#define E2P_CMD_ERASE_ (0x50000000)
122#define E2P_CMD_ERAL_ (0x60000000)
123#define E2P_CMD_RELOAD_ (0x70000000)
124#define E2P_CMD_TIMEOUT_ (0x00000400)
125#define E2P_CMD_LOADED_ (0x00000200)
126#define E2P_CMD_ADDR_ (0x000001FF)
127
128#define MAX_EEPROM_SIZE (512)
129
130#define E2P_DATA (0x34)
131#define E2P_DATA_MASK_ (0x000000FF)
132
133#define BURST_CAP (0x38)
134
135#define GPIO_WAKE (0x64)
136
137#define INT_EP_CTL (0x68)
138#define INT_EP_CTL_INTEP_ (0x80000000)
139#define INT_EP_CTL_MACRTO_ (0x00080000)
140#define INT_EP_CTL_TX_STOP_ (0x00020000)
141#define INT_EP_CTL_RX_STOP_ (0x00010000)
142#define INT_EP_CTL_PHY_INT_ (0x00008000)
143#define INT_EP_CTL_TXE_ (0x00004000)
144#define INT_EP_CTL_TDFU_ (0x00002000)
145#define INT_EP_CTL_TDFO_ (0x00001000)
146#define INT_EP_CTL_RXDF_ (0x00000800)
147#define INT_EP_CTL_GPIOS_ (0x000007FF)
148
149#define BULK_IN_DLY (0x6C)
150
151/* MAC CSRs */
152#define MAC_CR (0x100)
153#define MAC_CR_RXALL_ (0x80000000)
154#define MAC_CR_RCVOWN_ (0x00800000)
155#define MAC_CR_LOOPBK_ (0x00200000)
156#define MAC_CR_FDPX_ (0x00100000)
157#define MAC_CR_MCPAS_ (0x00080000)
158#define MAC_CR_PRMS_ (0x00040000)
159#define MAC_CR_INVFILT_ (0x00020000)
160#define MAC_CR_PASSBAD_ (0x00010000)
161#define MAC_CR_HFILT_ (0x00008000)
162#define MAC_CR_HPFILT_ (0x00002000)
163#define MAC_CR_LCOLL_ (0x00001000)
164#define MAC_CR_BCAST_ (0x00000800)
165#define MAC_CR_DISRTY_ (0x00000400)
166#define MAC_CR_PADSTR_ (0x00000100)
167#define MAC_CR_BOLMT_MASK (0x000000C0)
168#define MAC_CR_DFCHK_ (0x00000020)
169#define MAC_CR_TXEN_ (0x00000008)
170#define MAC_CR_RXEN_ (0x00000004)
171
172#define ADDRH (0x104)
173
174#define ADDRL (0x108)
175
176#define HASHH (0x10C)
177
178#define HASHL (0x110)
179
180#define MII_ADDR (0x114)
181#define MII_WRITE_ (0x02)
182#define MII_BUSY_ (0x01)
183#define MII_READ_ (0x00) /* ~of MII Write bit */
184
185#define MII_DATA (0x118)
186
187#define FLOW (0x11C)
188#define FLOW_FCPT_ (0xFFFF0000)
189#define FLOW_FCPASS_ (0x00000004)
190#define FLOW_FCEN_ (0x00000002)
191#define FLOW_FCBSY_ (0x00000001)
192
193#define VLAN1 (0x120)
194
195#define VLAN2 (0x124)
196
197#define WUFF (0x128)
198
199#define WUCSR (0x12C)
200
201#define COE_CR (0x130)
202#define Tx_COE_EN_ (0x00010000)
203#define Rx_COE_MODE_ (0x00000002)
204#define Rx_COE_EN_ (0x00000001)
205
206/* Vendor-specific PHY Definitions */
207
208/* Mode Control/Status Register */
209#define PHY_MODE_CTRL_STS (17)
210#define MODE_CTRL_STS_EDPWRDOWN_ ((u16)0x2000)
211#define MODE_CTRL_STS_ENERGYON_ ((u16)0x0002)
212
213#define SPECIAL_CTRL_STS (27)
214#define SPECIAL_CTRL_STS_OVRRD_AMDIX_ ((u16)0x8000)
215#define SPECIAL_CTRL_STS_AMDIX_ENABLE_ ((u16)0x4000)
216#define SPECIAL_CTRL_STS_AMDIX_STATE_ ((u16)0x2000)
217
218#define PHY_INT_SRC (29)
219#define PHY_INT_SRC_ENERGY_ON_ ((u16)0x0080)
220#define PHY_INT_SRC_ANEG_COMP_ ((u16)0x0040)
221#define PHY_INT_SRC_REMOTE_FAULT_ ((u16)0x0020)
222#define PHY_INT_SRC_LINK_DOWN_ ((u16)0x0010)
223
224#define PHY_INT_MASK (30)
225#define PHY_INT_MASK_ENERGY_ON_ ((u16)0x0080)
226#define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040)
227#define PHY_INT_MASK_REMOTE_FAULT_ ((u16)0x0020)
228#define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010)
229#define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \
230 PHY_INT_MASK_LINK_DOWN_)
231
232#define PHY_SPECIAL (31)
233#define PHY_SPECIAL_SPD_ ((u16)0x001C)
234#define PHY_SPECIAL_SPD_10HALF_ ((u16)0x0004)
235#define PHY_SPECIAL_SPD_10FULL_ ((u16)0x0014)
236#define PHY_SPECIAL_SPD_100HALF_ ((u16)0x0008)
237#define PHY_SPECIAL_SPD_100FULL_ ((u16)0x0018)
238
239/* USB Vendor Requests */
240#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
241#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
242#define USB_VENDOR_REQUEST_GET_STATS 0xA2
243
244/* Interrupt Endpoint status word bitfields */
245#define INT_ENP_TX_STOP_ ((u32)BIT(17))
246#define INT_ENP_RX_STOP_ ((u32)BIT(16))
247#define INT_ENP_PHY_INT_ ((u32)BIT(15))
248#define INT_ENP_TXE_ ((u32)BIT(14))
249#define INT_ENP_TDFU_ ((u32)BIT(13))
250#define INT_ENP_TDFO_ ((u32)BIT(12))
251#define INT_ENP_RXDF_ ((u32)BIT(11))
252
253#endif /* _SMSC95XX_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-12 05:16:09 -0500