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1da177e4 LT |
1 | /* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */ |
2 | /* | |
3 | A Linux device driver for PCI NE2000 clones. | |
4 | ||
5 | Authors and other copyright holders: | |
6 | 1992-2000 by Donald Becker, NE2000 core and various modifications. | |
7 | 1995-1998 by Paul Gortmaker, core modifications and PCI support. | |
8 | Copyright 1993 assigned to the United States Government as represented | |
9 | by the Director, National Security Agency. | |
10 | ||
11 | This software may be used and distributed according to the terms of | |
12 | the GNU General Public License (GPL), incorporated herein by reference. | |
13 | Drivers based on or derived from this code fall under the GPL and must | |
14 | retain the authorship, copyright and license notice. This file is not | |
15 | a complete program and may only be used when the entire operating | |
16 | system is licensed under the GPL. | |
17 | ||
18 | The author may be reached as becker@scyld.com, or C/O | |
19 | Scyld Computing Corporation | |
20 | 410 Severn Ave., Suite 210 | |
21 | Annapolis MD 21403 | |
22 | ||
23 | Issues remaining: | |
24 | People are making PCI ne2000 clones! Oh the horror, the horror... | |
25 | Limited full-duplex support. | |
26 | */ | |
27 | ||
28 | #define DRV_NAME "ne2k-pci" | |
29 | #define DRV_VERSION "1.03" | |
30 | #define DRV_RELDATE "9/22/2003" | |
31 | ||
32 | ||
33 | /* The user-configurable values. | |
34 | These may be modified when a driver module is loaded.*/ | |
35 | ||
36 | static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ | |
37 | ||
38 | #define MAX_UNITS 8 /* More are supported, limit only on options */ | |
39 | /* Used to pass the full-duplex flag, etc. */ | |
40 | static int full_duplex[MAX_UNITS]; | |
41 | static int options[MAX_UNITS]; | |
42 | ||
43 | /* Force a non std. amount of memory. Units are 256 byte pages. */ | |
44 | /* #define PACKETBUF_MEMSIZE 0x40 */ | |
45 | ||
46 | ||
47 | #include <linux/module.h> | |
48 | #include <linux/kernel.h> | |
49 | #include <linux/errno.h> | |
50 | #include <linux/pci.h> | |
51 | #include <linux/init.h> | |
52 | #include <linux/interrupt.h> | |
53 | #include <linux/ethtool.h> | |
54 | #include <linux/netdevice.h> | |
55 | #include <linux/etherdevice.h> | |
56 | ||
57 | #include <asm/system.h> | |
58 | #include <asm/io.h> | |
59 | #include <asm/irq.h> | |
60 | #include <asm/uaccess.h> | |
61 | ||
62 | #include "8390.h" | |
63 | ||
64 | /* These identify the driver base version and may not be removed. */ | |
8937bb7b SH |
65 | static const char version[] __devinitconst = |
66 | KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE | |
67 | " D. Becker/P. Gortmaker\n"; | |
1da177e4 LT |
68 | |
69 | #if defined(__powerpc__) | |
70 | #define inl_le(addr) le32_to_cpu(inl(addr)) | |
71 | #define inw_le(addr) le16_to_cpu(inw(addr)) | |
72 | #endif | |
73 | ||
74 | #define PFX DRV_NAME ": " | |
75 | ||
76 | MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); | |
77 | MODULE_DESCRIPTION("PCI NE2000 clone driver"); | |
78 | MODULE_LICENSE("GPL"); | |
79 | ||
80 | module_param(debug, int, 0); | |
81 | module_param_array(options, int, NULL, 0); | |
82 | module_param_array(full_duplex, int, NULL, 0); | |
83 | MODULE_PARM_DESC(debug, "debug level (1-2)"); | |
84 | MODULE_PARM_DESC(options, "Bit 5: full duplex"); | |
85 | MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); | |
86 | ||
87 | /* Some defines that people can play with if so inclined. */ | |
88 | ||
89 | /* Use 32 bit data-movement operations instead of 16 bit. */ | |
90 | #define USE_LONGIO | |
91 | ||
92 | /* Do we implement the read before write bugfix ? */ | |
93 | /* #define NE_RW_BUGFIX */ | |
94 | ||
95 | /* Flags. We rename an existing ei_status field to store flags! */ | |
96 | /* Thus only the low 8 bits are usable for non-init-time flags. */ | |
97 | #define ne2k_flags reg0 | |
98 | enum { | |
99 | ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ | |
100 | FORCE_FDX=0x20, /* User override. */ | |
101 | REALTEK_FDX=0x40, HOLTEK_FDX=0x80, | |
102 | STOP_PG_0x60=0x100, | |
103 | }; | |
104 | ||
105 | enum ne2k_pci_chipsets { | |
106 | CH_RealTek_RTL_8029 = 0, | |
107 | CH_Winbond_89C940, | |
108 | CH_Compex_RL2000, | |
109 | CH_KTI_ET32P2, | |
110 | CH_NetVin_NV5000SC, | |
111 | CH_Via_86C926, | |
112 | CH_SureCom_NE34, | |
113 | CH_Winbond_W89C940F, | |
114 | CH_Holtek_HT80232, | |
115 | CH_Holtek_HT80229, | |
116 | CH_Winbond_89C940_8c4a, | |
117 | }; | |
118 | ||
119 | ||
b2fd16b4 | 120 | static struct { |
1da177e4 LT |
121 | char *name; |
122 | int flags; | |
123 | } pci_clone_list[] __devinitdata = { | |
124 | {"RealTek RTL-8029", REALTEK_FDX}, | |
125 | {"Winbond 89C940", 0}, | |
126 | {"Compex RL2000", 0}, | |
127 | {"KTI ET32P2", 0}, | |
128 | {"NetVin NV5000SC", 0}, | |
129 | {"Via 86C926", ONLY_16BIT_IO}, | |
130 | {"SureCom NE34", 0}, | |
131 | {"Winbond W89C940F", 0}, | |
132 | {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, | |
133 | {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, | |
134 | {"Winbond W89C940(misprogrammed)", 0}, | |
135 | {NULL,} | |
136 | }; | |
137 | ||
138 | ||
a3aa1884 | 139 | static DEFINE_PCI_DEVICE_TABLE(ne2k_pci_tbl) = { |
1da177e4 LT |
140 | { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, |
141 | { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, | |
142 | { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, | |
143 | { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, | |
144 | { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, | |
145 | { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, | |
146 | { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, | |
147 | { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, | |
148 | { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, | |
149 | { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, | |
150 | { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, | |
151 | { 0, } | |
152 | }; | |
153 | MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); | |
154 | ||
155 | ||
156 | /* ---- No user-serviceable parts below ---- */ | |
157 | ||
158 | #define NE_BASE (dev->base_addr) | |
159 | #define NE_CMD 0x00 | |
160 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
161 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
162 | #define NE_IO_EXTENT 0x20 | |
163 | ||
164 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
165 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
166 | ||
167 | ||
168 | static int ne2k_pci_open(struct net_device *dev); | |
169 | static int ne2k_pci_close(struct net_device *dev); | |
170 | ||
171 | static void ne2k_pci_reset_8390(struct net_device *dev); | |
172 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
173 | int ring_page); | |
174 | static void ne2k_pci_block_input(struct net_device *dev, int count, | |
175 | struct sk_buff *skb, int ring_offset); | |
176 | static void ne2k_pci_block_output(struct net_device *dev, const int count, | |
177 | const unsigned char *buf, const int start_page); | |
7282d491 | 178 | static const struct ethtool_ops ne2k_pci_ethtool_ops; |
1da177e4 | 179 | |
6aa20a22 | 180 | |
1da177e4 LT |
181 | |
182 | /* There is no room in the standard 8390 structure for extra info we need, | |
183 | so we build a meta/outer-wrapper structure.. */ | |
184 | struct ne2k_pci_card { | |
185 | struct net_device *dev; | |
186 | struct pci_dev *pci_dev; | |
187 | }; | |
188 | ||
189 | ||
190 | ||
191 | /* | |
192 | NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet | |
193 | buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes | |
194 | 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be | |
195 | detected by their SA prefix. | |
196 | ||
197 | Reading the SAPROM from a word-wide card with the 8390 set in byte-wide | |
198 | mode results in doubled values, which can be detected and compensated for. | |
199 | ||
200 | The probe is also responsible for initializing the card and filling | |
201 | in the 'dev' and 'ei_status' structures. | |
202 | */ | |
203 | ||
4e4fd4e4 SH |
204 | static const struct net_device_ops ne2k_netdev_ops = { |
205 | .ndo_open = ne2k_pci_open, | |
206 | .ndo_stop = ne2k_pci_close, | |
207 | .ndo_start_xmit = ei_start_xmit, | |
208 | .ndo_tx_timeout = ei_tx_timeout, | |
209 | .ndo_get_stats = ei_get_stats, | |
210 | .ndo_set_multicast_list = ei_set_multicast_list, | |
211 | .ndo_validate_addr = eth_validate_addr, | |
fe96aaa1 | 212 | .ndo_set_mac_address = eth_mac_addr, |
4e4fd4e4 SH |
213 | .ndo_change_mtu = eth_change_mtu, |
214 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
215 | .ndo_poll_controller = ei_poll, | |
216 | #endif | |
217 | }; | |
1da177e4 LT |
218 | |
219 | static int __devinit ne2k_pci_init_one (struct pci_dev *pdev, | |
220 | const struct pci_device_id *ent) | |
221 | { | |
222 | struct net_device *dev; | |
223 | int i; | |
224 | unsigned char SA_prom[32]; | |
225 | int start_page, stop_page; | |
226 | int irq, reg0, chip_idx = ent->driver_data; | |
227 | static unsigned int fnd_cnt; | |
228 | long ioaddr; | |
229 | int flags = pci_clone_list[chip_idx].flags; | |
230 | ||
231 | /* when built into the kernel, we only print version if device is found */ | |
232 | #ifndef MODULE | |
233 | static int printed_version; | |
234 | if (!printed_version++) | |
235 | printk(version); | |
236 | #endif | |
237 | ||
238 | fnd_cnt++; | |
239 | ||
240 | i = pci_enable_device (pdev); | |
241 | if (i) | |
242 | return i; | |
243 | ||
244 | ioaddr = pci_resource_start (pdev, 0); | |
245 | irq = pdev->irq; | |
246 | ||
247 | if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) { | |
9b91cf9d | 248 | dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); |
1da177e4 LT |
249 | return -ENODEV; |
250 | } | |
251 | ||
252 | if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) { | |
9b91cf9d | 253 | dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", |
1da177e4 LT |
254 | NE_IO_EXTENT, ioaddr); |
255 | return -EBUSY; | |
256 | } | |
257 | ||
258 | reg0 = inb(ioaddr); | |
259 | if (reg0 == 0xFF) | |
260 | goto err_out_free_res; | |
261 | ||
262 | /* Do a preliminary verification that we have a 8390. */ | |
263 | { | |
264 | int regd; | |
265 | outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); | |
266 | regd = inb(ioaddr + 0x0d); | |
267 | outb(0xff, ioaddr + 0x0d); | |
268 | outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); | |
269 | inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ | |
270 | if (inb(ioaddr + EN0_COUNTER0) != 0) { | |
271 | outb(reg0, ioaddr); | |
272 | outb(regd, ioaddr + 0x0d); /* Restore the old values. */ | |
273 | goto err_out_free_res; | |
274 | } | |
275 | } | |
276 | ||
277 | /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ | |
278 | dev = alloc_ei_netdev(); | |
279 | if (!dev) { | |
9b91cf9d | 280 | dev_err(&pdev->dev, "cannot allocate ethernet device\n"); |
1da177e4 LT |
281 | goto err_out_free_res; |
282 | } | |
4e4fd4e4 SH |
283 | dev->netdev_ops = &ne2k_netdev_ops; |
284 | ||
1da177e4 LT |
285 | SET_NETDEV_DEV(dev, &pdev->dev); |
286 | ||
287 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
288 | { | |
289 | unsigned long reset_start_time = jiffies; | |
290 | ||
291 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
292 | ||
293 | /* This looks like a horrible timing loop, but it should never take | |
294 | more than a few cycles. | |
295 | */ | |
296 | while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) | |
297 | /* Limit wait: '2' avoids jiffy roll-over. */ | |
298 | if (jiffies - reset_start_time > 2) { | |
9b91cf9d | 299 | dev_err(&pdev->dev, |
2e8a538d | 300 | "Card failure (no reset ack).\n"); |
1da177e4 LT |
301 | goto err_out_free_netdev; |
302 | } | |
303 | ||
304 | outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ | |
305 | } | |
306 | ||
307 | /* Read the 16 bytes of station address PROM. | |
308 | We must first initialize registers, similar to NS8390_init(eifdev, 0). | |
309 | We can't reliably read the SAPROM address without this. | |
310 | (I learned the hard way!). */ | |
311 | { | |
312 | struct {unsigned char value, offset; } program_seq[] = { | |
313 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ | |
314 | {0x49, EN0_DCFG}, /* Set word-wide access. */ | |
315 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ | |
316 | {0x00, EN0_RCNTHI}, | |
317 | {0x00, EN0_IMR}, /* Mask completion irq. */ | |
318 | {0xFF, EN0_ISR}, | |
319 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ | |
320 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ | |
321 | {32, EN0_RCNTLO}, | |
322 | {0x00, EN0_RCNTHI}, | |
323 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
324 | {0x00, EN0_RSARHI}, | |
325 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
326 | }; | |
ff8ac609 | 327 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
1da177e4 LT |
328 | outb(program_seq[i].value, ioaddr + program_seq[i].offset); |
329 | ||
330 | } | |
331 | ||
332 | /* Note: all PCI cards have at least 16 bit access, so we don't have | |
333 | to check for 8 bit cards. Most cards permit 32 bit access. */ | |
334 | if (flags & ONLY_32BIT_IO) { | |
335 | for (i = 0; i < 4 ; i++) | |
336 | ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); | |
337 | } else | |
338 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) | |
339 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); | |
340 | ||
341 | /* We always set the 8390 registers for word mode. */ | |
342 | outb(0x49, ioaddr + EN0_DCFG); | |
343 | start_page = NESM_START_PG; | |
344 | ||
345 | stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; | |
346 | ||
347 | /* Set up the rest of the parameters. */ | |
348 | dev->irq = irq; | |
349 | dev->base_addr = ioaddr; | |
350 | pci_set_drvdata(pdev, dev); | |
351 | ||
352 | ei_status.name = pci_clone_list[chip_idx].name; | |
353 | ei_status.tx_start_page = start_page; | |
354 | ei_status.stop_page = stop_page; | |
355 | ei_status.word16 = 1; | |
356 | ei_status.ne2k_flags = flags; | |
357 | if (fnd_cnt < MAX_UNITS) { | |
358 | if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) | |
359 | ei_status.ne2k_flags |= FORCE_FDX; | |
360 | } | |
361 | ||
362 | ei_status.rx_start_page = start_page + TX_PAGES; | |
363 | #ifdef PACKETBUF_MEMSIZE | |
364 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | |
365 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; | |
366 | #endif | |
367 | ||
368 | ei_status.reset_8390 = &ne2k_pci_reset_8390; | |
369 | ei_status.block_input = &ne2k_pci_block_input; | |
370 | ei_status.block_output = &ne2k_pci_block_output; | |
371 | ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; | |
372 | ei_status.priv = (unsigned long) pdev; | |
4e4fd4e4 | 373 | |
1da177e4 | 374 | dev->ethtool_ops = &ne2k_pci_ethtool_ops; |
1da177e4 LT |
375 | NS8390_init(dev, 0); |
376 | ||
eb457f36 | 377 | memcpy(dev->dev_addr, SA_prom, dev->addr_len); |
379b026e LR |
378 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
379 | ||
1da177e4 LT |
380 | i = register_netdev(dev); |
381 | if (i) | |
382 | goto err_out_free_netdev; | |
383 | ||
e174961c | 384 | printk("%s: %s found at %#lx, IRQ %d, %pM.\n", |
0795af57 | 385 | dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq, |
e174961c | 386 | dev->dev_addr); |
0795af57 | 387 | |
1da177e4 LT |
388 | return 0; |
389 | ||
390 | err_out_free_netdev: | |
391 | free_netdev (dev); | |
392 | err_out_free_res: | |
393 | release_region (ioaddr, NE_IO_EXTENT); | |
394 | pci_set_drvdata (pdev, NULL); | |
395 | return -ENODEV; | |
396 | ||
397 | } | |
398 | ||
6aa20a22 | 399 | /* |
1da177e4 LT |
400 | * Magic incantation sequence for full duplex on the supported cards. |
401 | */ | |
402 | static inline int set_realtek_fdx(struct net_device *dev) | |
403 | { | |
404 | long ioaddr = dev->base_addr; | |
405 | ||
406 | outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ | |
407 | outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ | |
408 | outb(0x40, ioaddr + 0x06); /* Enable full duplex */ | |
409 | outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ | |
410 | outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static inline int set_holtek_fdx(struct net_device *dev) | |
415 | { | |
416 | long ioaddr = dev->base_addr; | |
417 | ||
418 | outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); | |
419 | return 0; | |
420 | } | |
421 | ||
422 | static int ne2k_pci_set_fdx(struct net_device *dev) | |
423 | { | |
6aa20a22 | 424 | if (ei_status.ne2k_flags & REALTEK_FDX) |
1da177e4 LT |
425 | return set_realtek_fdx(dev); |
426 | else if (ei_status.ne2k_flags & HOLTEK_FDX) | |
427 | return set_holtek_fdx(dev); | |
428 | ||
429 | return -EOPNOTSUPP; | |
430 | } | |
431 | ||
432 | static int ne2k_pci_open(struct net_device *dev) | |
433 | { | |
1fb9df5d | 434 | int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
435 | if (ret) |
436 | return ret; | |
437 | ||
438 | if (ei_status.ne2k_flags & FORCE_FDX) | |
439 | ne2k_pci_set_fdx(dev); | |
440 | ||
441 | ei_open(dev); | |
442 | return 0; | |
443 | } | |
444 | ||
445 | static int ne2k_pci_close(struct net_device *dev) | |
446 | { | |
447 | ei_close(dev); | |
448 | free_irq(dev->irq, dev); | |
449 | return 0; | |
450 | } | |
451 | ||
452 | /* Hard reset the card. This used to pause for the same period that a | |
453 | 8390 reset command required, but that shouldn't be necessary. */ | |
454 | static void ne2k_pci_reset_8390(struct net_device *dev) | |
455 | { | |
456 | unsigned long reset_start_time = jiffies; | |
457 | ||
458 | if (debug > 1) printk("%s: Resetting the 8390 t=%ld...", | |
459 | dev->name, jiffies); | |
460 | ||
461 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
462 | ||
463 | ei_status.txing = 0; | |
464 | ei_status.dmaing = 0; | |
465 | ||
466 | /* This check _should_not_ be necessary, omit eventually. */ | |
467 | while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) | |
468 | if (jiffies - reset_start_time > 2) { | |
469 | printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name); | |
470 | break; | |
471 | } | |
472 | outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ | |
473 | } | |
474 | ||
475 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
476 | we don't need to be concerned with ring wrap as the header will be at | |
477 | the start of a page, so we optimize accordingly. */ | |
478 | ||
479 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
480 | { | |
481 | ||
482 | long nic_base = dev->base_addr; | |
483 | ||
484 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
485 | if (ei_status.dmaing) { | |
486 | printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr " | |
487 | "[DMAstat:%d][irqlock:%d].\n", | |
488 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
489 | return; | |
490 | } | |
491 | ||
492 | ei_status.dmaing |= 0x01; | |
493 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
494 | outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | |
495 | outb(0, nic_base + EN0_RCNTHI); | |
496 | outb(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
497 | outb(ring_page, nic_base + EN0_RSARHI); | |
498 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
499 | ||
500 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
501 | insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); | |
502 | } else { | |
503 | *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); | |
504 | le16_to_cpus(&hdr->count); | |
505 | } | |
506 | ||
507 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
508 | ei_status.dmaing &= ~0x01; | |
509 | } | |
510 | ||
511 | /* Block input and output, similar to the Crynwr packet driver. If you | |
512 | are porting to a new ethercard, look at the packet driver source for hints. | |
513 | The NEx000 doesn't share the on-board packet memory -- you have to put | |
514 | the packet out through the "remote DMA" dataport using outb. */ | |
515 | ||
516 | static void ne2k_pci_block_input(struct net_device *dev, int count, | |
517 | struct sk_buff *skb, int ring_offset) | |
518 | { | |
519 | long nic_base = dev->base_addr; | |
520 | char *buf = skb->data; | |
521 | ||
522 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
523 | if (ei_status.dmaing) { | |
524 | printk("%s: DMAing conflict in ne2k_pci_block_input " | |
525 | "[DMAstat:%d][irqlock:%d].\n", | |
526 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
527 | return; | |
528 | } | |
529 | ei_status.dmaing |= 0x01; | |
530 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) | |
531 | count = (count + 3) & 0xFFFC; | |
532 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
533 | outb(count & 0xff, nic_base + EN0_RCNTLO); | |
534 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
535 | outb(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
536 | outb(ring_offset >> 8, nic_base + EN0_RSARHI); | |
537 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
538 | ||
539 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
540 | insw(NE_BASE + NE_DATAPORT,buf,count>>1); | |
541 | if (count & 0x01) { | |
542 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); | |
543 | } | |
544 | } else { | |
545 | insl(NE_BASE + NE_DATAPORT, buf, count>>2); | |
546 | if (count & 3) { | |
547 | buf += count & ~3; | |
548 | if (count & 2) { | |
3b5e26f7 | 549 | __le16 *b = (__le16 *)buf; |
1da177e4 | 550 | |
3b5e26f7 | 551 | *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); |
1da177e4 LT |
552 | buf = (char *)b; |
553 | } | |
554 | if (count & 1) | |
555 | *buf = inb(NE_BASE + NE_DATAPORT); | |
556 | } | |
557 | } | |
558 | ||
559 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
560 | ei_status.dmaing &= ~0x01; | |
561 | } | |
562 | ||
563 | static void ne2k_pci_block_output(struct net_device *dev, int count, | |
564 | const unsigned char *buf, const int start_page) | |
565 | { | |
566 | long nic_base = NE_BASE; | |
567 | unsigned long dma_start; | |
568 | ||
569 | /* On little-endian it's always safe to round the count up for | |
570 | word writes. */ | |
571 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) | |
572 | count = (count + 3) & 0xFFFC; | |
573 | else | |
574 | if (count & 0x01) | |
575 | count++; | |
576 | ||
577 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
578 | if (ei_status.dmaing) { | |
579 | printk("%s: DMAing conflict in ne2k_pci_block_output." | |
580 | "[DMAstat:%d][irqlock:%d]\n", | |
581 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
582 | return; | |
583 | } | |
584 | ei_status.dmaing |= 0x01; | |
585 | /* We should already be in page 0, but to be safe... */ | |
586 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
587 | ||
588 | #ifdef NE8390_RW_BUGFIX | |
589 | /* Handle the read-before-write bug the same way as the | |
590 | Crynwr packet driver -- the NatSemi method doesn't work. | |
591 | Actually this doesn't always work either, but if you have | |
592 | problems with your NEx000 this is better than nothing! */ | |
593 | outb(0x42, nic_base + EN0_RCNTLO); | |
594 | outb(0x00, nic_base + EN0_RCNTHI); | |
595 | outb(0x42, nic_base + EN0_RSARLO); | |
596 | outb(0x00, nic_base + EN0_RSARHI); | |
597 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
598 | #endif | |
599 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
600 | ||
601 | /* Now the normal output. */ | |
602 | outb(count & 0xff, nic_base + EN0_RCNTLO); | |
603 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
604 | outb(0x00, nic_base + EN0_RSARLO); | |
605 | outb(start_page, nic_base + EN0_RSARHI); | |
606 | outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
607 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
608 | outsw(NE_BASE + NE_DATAPORT, buf, count>>1); | |
609 | } else { | |
610 | outsl(NE_BASE + NE_DATAPORT, buf, count>>2); | |
611 | if (count & 3) { | |
612 | buf += count & ~3; | |
613 | if (count & 2) { | |
3b5e26f7 | 614 | __le16 *b = (__le16 *)buf; |
1da177e4 | 615 | |
3b5e26f7 | 616 | outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); |
1da177e4 LT |
617 | buf = (char *)b; |
618 | } | |
619 | } | |
620 | } | |
621 | ||
622 | dma_start = jiffies; | |
623 | ||
624 | while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
625 | if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ | |
626 | printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); | |
627 | ne2k_pci_reset_8390(dev); | |
628 | NS8390_init(dev,1); | |
629 | break; | |
630 | } | |
631 | ||
632 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
633 | ei_status.dmaing &= ~0x01; | |
634 | return; | |
635 | } | |
636 | ||
637 | static void ne2k_pci_get_drvinfo(struct net_device *dev, | |
638 | struct ethtool_drvinfo *info) | |
639 | { | |
4cf1653a | 640 | struct ei_device *ei = netdev_priv(dev); |
1da177e4 LT |
641 | struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; |
642 | ||
643 | strcpy(info->driver, DRV_NAME); | |
644 | strcpy(info->version, DRV_VERSION); | |
645 | strcpy(info->bus_info, pci_name(pci_dev)); | |
646 | } | |
647 | ||
7282d491 | 648 | static const struct ethtool_ops ne2k_pci_ethtool_ops = { |
1da177e4 | 649 | .get_drvinfo = ne2k_pci_get_drvinfo, |
1da177e4 LT |
650 | }; |
651 | ||
652 | static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev) | |
653 | { | |
654 | struct net_device *dev = pci_get_drvdata(pdev); | |
655 | ||
5d9428de | 656 | BUG_ON(!dev); |
1da177e4 LT |
657 | unregister_netdev(dev); |
658 | release_region(dev->base_addr, NE_IO_EXTENT); | |
659 | free_netdev(dev); | |
660 | pci_disable_device(pdev); | |
661 | pci_set_drvdata(pdev, NULL); | |
662 | } | |
663 | ||
664 | #ifdef CONFIG_PM | |
665 | static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) | |
666 | { | |
667 | struct net_device *dev = pci_get_drvdata (pdev); | |
668 | ||
669 | netif_device_detach(dev); | |
670 | pci_save_state(pdev); | |
d58da590 | 671 | pci_disable_device(pdev); |
1da177e4 LT |
672 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
673 | ||
674 | return 0; | |
675 | } | |
676 | ||
677 | static int ne2k_pci_resume (struct pci_dev *pdev) | |
678 | { | |
679 | struct net_device *dev = pci_get_drvdata (pdev); | |
cad1b9da | 680 | int rc; |
1da177e4 LT |
681 | |
682 | pci_set_power_state(pdev, 0); | |
683 | pci_restore_state(pdev); | |
cad1b9da JG |
684 | |
685 | rc = pci_enable_device(pdev); | |
686 | if (rc) | |
687 | return rc; | |
688 | ||
1da177e4 LT |
689 | NS8390_init(dev, 1); |
690 | netif_device_attach(dev); | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
695 | #endif /* CONFIG_PM */ | |
696 | ||
697 | ||
698 | static struct pci_driver ne2k_driver = { | |
699 | .name = DRV_NAME, | |
700 | .probe = ne2k_pci_init_one, | |
701 | .remove = __devexit_p(ne2k_pci_remove_one), | |
702 | .id_table = ne2k_pci_tbl, | |
703 | #ifdef CONFIG_PM | |
704 | .suspend = ne2k_pci_suspend, | |
705 | .resume = ne2k_pci_resume, | |
706 | #endif /* CONFIG_PM */ | |
707 | ||
708 | }; | |
709 | ||
710 | ||
711 | static int __init ne2k_pci_init(void) | |
712 | { | |
713 | /* when a module, this is printed whether or not devices are found in probe */ | |
714 | #ifdef MODULE | |
715 | printk(version); | |
716 | #endif | |
29917620 | 717 | return pci_register_driver(&ne2k_driver); |
1da177e4 LT |
718 | } |
719 | ||
720 | ||
721 | static void __exit ne2k_pci_cleanup(void) | |
722 | { | |
723 | pci_unregister_driver (&ne2k_driver); | |
724 | } | |
725 | ||
726 | module_init(ne2k_pci_init); | |
727 | module_exit(ne2k_pci_cleanup); |