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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 | ||
1da177e4 LT |
36 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
37 | /* Used to pass the full-duplex flag, etc. */ | |
38 | static int full_duplex[MAX_UNITS]; | |
39 | static int options[MAX_UNITS]; | |
40 | ||
41 | /* Force a non std. amount of memory. Units are 256 byte pages. */ | |
42 | /* #define PACKETBUF_MEMSIZE 0x40 */ | |
43 | ||
44 | ||
45 | #include <linux/module.h> | |
46 | #include <linux/kernel.h> | |
47 | #include <linux/errno.h> | |
48 | #include <linux/pci.h> | |
49 | #include <linux/init.h> | |
50 | #include <linux/interrupt.h> | |
51 | #include <linux/ethtool.h> | |
52 | #include <linux/netdevice.h> | |
53 | #include <linux/etherdevice.h> | |
54 | ||
1da177e4 LT |
55 | #include <asm/io.h> |
56 | #include <asm/irq.h> | |
7c0f6ba6 | 57 | #include <linux/uaccess.h> |
1da177e4 LT |
58 | |
59 | #include "8390.h" | |
60 | ||
c45f812f MW |
61 | static u32 ne2k_msg_enable; |
62 | ||
1da177e4 | 63 | /* These identify the driver base version and may not be removed. */ |
4168ac0e | 64 | static const char version[] = |
8937bb7b SH |
65 | KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE |
66 | " D. Becker/P. Gortmaker\n"; | |
1da177e4 LT |
67 | |
68 | #if defined(__powerpc__) | |
69 | #define inl_le(addr) le32_to_cpu(inl(addr)) | |
70 | #define inw_le(addr) le16_to_cpu(inw(addr)) | |
71 | #endif | |
72 | ||
73 | #define PFX DRV_NAME ": " | |
74 | ||
75 | MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); | |
76 | MODULE_DESCRIPTION("PCI NE2000 clone driver"); | |
77 | MODULE_LICENSE("GPL"); | |
78 | ||
d3757ba4 | 79 | module_param_named(msg_enable, ne2k_msg_enable, uint, 0444); |
1da177e4 LT |
80 | module_param_array(options, int, NULL, 0); |
81 | module_param_array(full_duplex, int, NULL, 0); | |
c45f812f | 82 | MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); |
1da177e4 LT |
83 | MODULE_PARM_DESC(options, "Bit 5: full duplex"); |
84 | MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); | |
85 | ||
86 | /* Some defines that people can play with if so inclined. */ | |
87 | ||
88 | /* Use 32 bit data-movement operations instead of 16 bit. */ | |
89 | #define USE_LONGIO | |
90 | ||
91 | /* Do we implement the read before write bugfix ? */ | |
92 | /* #define NE_RW_BUGFIX */ | |
93 | ||
94 | /* Flags. We rename an existing ei_status field to store flags! */ | |
95 | /* Thus only the low 8 bits are usable for non-init-time flags. */ | |
96 | #define ne2k_flags reg0 | |
97 | enum { | |
98 | ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ | |
99 | FORCE_FDX=0x20, /* User override. */ | |
100 | REALTEK_FDX=0x40, HOLTEK_FDX=0x80, | |
101 | STOP_PG_0x60=0x100, | |
102 | }; | |
103 | ||
104 | enum ne2k_pci_chipsets { | |
105 | CH_RealTek_RTL_8029 = 0, | |
106 | CH_Winbond_89C940, | |
107 | CH_Compex_RL2000, | |
108 | CH_KTI_ET32P2, | |
109 | CH_NetVin_NV5000SC, | |
110 | CH_Via_86C926, | |
111 | CH_SureCom_NE34, | |
112 | CH_Winbond_W89C940F, | |
113 | CH_Holtek_HT80232, | |
114 | CH_Holtek_HT80229, | |
115 | CH_Winbond_89C940_8c4a, | |
116 | }; | |
117 | ||
118 | ||
b2fd16b4 | 119 | static struct { |
1da177e4 LT |
120 | char *name; |
121 | int flags; | |
4168ac0e | 122 | } pci_clone_list[] = { |
1da177e4 LT |
123 | {"RealTek RTL-8029", REALTEK_FDX}, |
124 | {"Winbond 89C940", 0}, | |
125 | {"Compex RL2000", 0}, | |
126 | {"KTI ET32P2", 0}, | |
127 | {"NetVin NV5000SC", 0}, | |
128 | {"Via 86C926", ONLY_16BIT_IO}, | |
129 | {"SureCom NE34", 0}, | |
130 | {"Winbond W89C940F", 0}, | |
131 | {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, | |
132 | {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, | |
133 | {"Winbond W89C940(misprogrammed)", 0}, | |
134 | {NULL,} | |
135 | }; | |
136 | ||
137 | ||
9baa3c34 | 138 | static const struct pci_device_id ne2k_pci_tbl[] = { |
1da177e4 LT |
139 | { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, |
140 | { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, | |
141 | { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, | |
142 | { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, | |
143 | { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, | |
144 | { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, | |
145 | { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, | |
146 | { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, | |
147 | { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, | |
148 | { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, | |
149 | { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, | |
150 | { 0, } | |
151 | }; | |
152 | MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); | |
153 | ||
154 | ||
155 | /* ---- No user-serviceable parts below ---- */ | |
156 | ||
157 | #define NE_BASE (dev->base_addr) | |
158 | #define NE_CMD 0x00 | |
159 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
160 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
161 | #define NE_IO_EXTENT 0x20 | |
162 | ||
163 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
164 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
165 | ||
166 | ||
167 | static int ne2k_pci_open(struct net_device *dev); | |
168 | static int ne2k_pci_close(struct net_device *dev); | |
169 | ||
170 | static void ne2k_pci_reset_8390(struct net_device *dev); | |
171 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
172 | int ring_page); | |
173 | static void ne2k_pci_block_input(struct net_device *dev, int count, | |
174 | struct sk_buff *skb, int ring_offset); | |
175 | static void ne2k_pci_block_output(struct net_device *dev, const int count, | |
176 | const unsigned char *buf, const int start_page); | |
7282d491 | 177 | static const struct ethtool_ops ne2k_pci_ethtool_ops; |
1da177e4 | 178 | |
6aa20a22 | 179 | |
1da177e4 LT |
180 | |
181 | /* There is no room in the standard 8390 structure for extra info we need, | |
182 | so we build a meta/outer-wrapper structure.. */ | |
183 | struct ne2k_pci_card { | |
184 | struct net_device *dev; | |
185 | struct pci_dev *pci_dev; | |
186 | }; | |
187 | ||
188 | ||
189 | ||
190 | /* | |
191 | NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet | |
192 | buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes | |
193 | 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be | |
194 | detected by their SA prefix. | |
195 | ||
196 | Reading the SAPROM from a word-wide card with the 8390 set in byte-wide | |
197 | mode results in doubled values, which can be detected and compensated for. | |
198 | ||
199 | The probe is also responsible for initializing the card and filling | |
200 | in the 'dev' and 'ei_status' structures. | |
201 | */ | |
202 | ||
4e4fd4e4 SH |
203 | static const struct net_device_ops ne2k_netdev_ops = { |
204 | .ndo_open = ne2k_pci_open, | |
205 | .ndo_stop = ne2k_pci_close, | |
206 | .ndo_start_xmit = ei_start_xmit, | |
207 | .ndo_tx_timeout = ei_tx_timeout, | |
208 | .ndo_get_stats = ei_get_stats, | |
afc4b13d | 209 | .ndo_set_rx_mode = ei_set_multicast_list, |
4e4fd4e4 | 210 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 211 | .ndo_set_mac_address = eth_mac_addr, |
4e4fd4e4 SH |
212 | #ifdef CONFIG_NET_POLL_CONTROLLER |
213 | .ndo_poll_controller = ei_poll, | |
214 | #endif | |
215 | }; | |
1da177e4 | 216 | |
4168ac0e BP |
217 | static int ne2k_pci_init_one(struct pci_dev *pdev, |
218 | const struct pci_device_id *ent) | |
1da177e4 LT |
219 | { |
220 | struct net_device *dev; | |
221 | int i; | |
222 | unsigned char SA_prom[32]; | |
223 | int start_page, stop_page; | |
224 | int irq, reg0, chip_idx = ent->driver_data; | |
225 | static unsigned int fnd_cnt; | |
226 | long ioaddr; | |
227 | int flags = pci_clone_list[chip_idx].flags; | |
c45f812f | 228 | struct ei_device *ei_local; |
1da177e4 LT |
229 | |
230 | /* when built into the kernel, we only print version if device is found */ | |
231 | #ifndef MODULE | |
232 | static int printed_version; | |
233 | if (!printed_version++) | |
234 | printk(version); | |
235 | #endif | |
236 | ||
237 | fnd_cnt++; | |
238 | ||
239 | i = pci_enable_device (pdev); | |
240 | if (i) | |
241 | return i; | |
242 | ||
243 | ioaddr = pci_resource_start (pdev, 0); | |
244 | irq = pdev->irq; | |
245 | ||
246 | if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) { | |
9b91cf9d | 247 | dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); |
eb69c5bf | 248 | goto err_out; |
1da177e4 LT |
249 | } |
250 | ||
251 | if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) { | |
9b91cf9d | 252 | dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", |
1da177e4 | 253 | NE_IO_EXTENT, ioaddr); |
eb69c5bf | 254 | goto err_out; |
1da177e4 LT |
255 | } |
256 | ||
257 | reg0 = inb(ioaddr); | |
258 | if (reg0 == 0xFF) | |
259 | goto err_out_free_res; | |
260 | ||
261 | /* Do a preliminary verification that we have a 8390. */ | |
262 | { | |
263 | int regd; | |
264 | outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); | |
265 | regd = inb(ioaddr + 0x0d); | |
266 | outb(0xff, ioaddr + 0x0d); | |
267 | outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); | |
268 | inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ | |
269 | if (inb(ioaddr + EN0_COUNTER0) != 0) { | |
270 | outb(reg0, ioaddr); | |
271 | outb(regd, ioaddr + 0x0d); /* Restore the old values. */ | |
272 | goto err_out_free_res; | |
273 | } | |
274 | } | |
275 | ||
276 | /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ | |
277 | dev = alloc_ei_netdev(); | |
278 | if (!dev) { | |
9b91cf9d | 279 | dev_err(&pdev->dev, "cannot allocate ethernet device\n"); |
1da177e4 LT |
280 | goto err_out_free_res; |
281 | } | |
4e4fd4e4 | 282 | dev->netdev_ops = &ne2k_netdev_ops; |
c45f812f MW |
283 | ei_local = netdev_priv(dev); |
284 | ei_local->msg_enable = ne2k_msg_enable; | |
4e4fd4e4 | 285 | |
1da177e4 LT |
286 | SET_NETDEV_DEV(dev, &pdev->dev); |
287 | ||
288 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
289 | { | |
290 | unsigned long reset_start_time = jiffies; | |
291 | ||
292 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
293 | ||
294 | /* This looks like a horrible timing loop, but it should never take | |
295 | more than a few cycles. | |
296 | */ | |
297 | while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) | |
298 | /* Limit wait: '2' avoids jiffy roll-over. */ | |
299 | if (jiffies - reset_start_time > 2) { | |
9b91cf9d | 300 | dev_err(&pdev->dev, |
2e8a538d | 301 | "Card failure (no reset ack).\n"); |
1da177e4 LT |
302 | goto err_out_free_netdev; |
303 | } | |
304 | ||
305 | outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ | |
306 | } | |
307 | ||
308 | /* Read the 16 bytes of station address PROM. | |
309 | We must first initialize registers, similar to NS8390_init(eifdev, 0). | |
310 | We can't reliably read the SAPROM address without this. | |
311 | (I learned the hard way!). */ | |
312 | { | |
313 | struct {unsigned char value, offset; } program_seq[] = { | |
314 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ | |
315 | {0x49, EN0_DCFG}, /* Set word-wide access. */ | |
316 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ | |
317 | {0x00, EN0_RCNTHI}, | |
318 | {0x00, EN0_IMR}, /* Mask completion irq. */ | |
319 | {0xFF, EN0_ISR}, | |
320 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ | |
321 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ | |
322 | {32, EN0_RCNTLO}, | |
323 | {0x00, EN0_RCNTHI}, | |
324 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
325 | {0x00, EN0_RSARHI}, | |
326 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
327 | }; | |
ff8ac609 | 328 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
1da177e4 LT |
329 | outb(program_seq[i].value, ioaddr + program_seq[i].offset); |
330 | ||
331 | } | |
332 | ||
333 | /* Note: all PCI cards have at least 16 bit access, so we don't have | |
334 | to check for 8 bit cards. Most cards permit 32 bit access. */ | |
335 | if (flags & ONLY_32BIT_IO) { | |
336 | for (i = 0; i < 4 ; i++) | |
337 | ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); | |
338 | } else | |
339 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) | |
340 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); | |
341 | ||
342 | /* We always set the 8390 registers for word mode. */ | |
343 | outb(0x49, ioaddr + EN0_DCFG); | |
344 | start_page = NESM_START_PG; | |
345 | ||
346 | stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; | |
347 | ||
348 | /* Set up the rest of the parameters. */ | |
349 | dev->irq = irq; | |
350 | dev->base_addr = ioaddr; | |
351 | pci_set_drvdata(pdev, dev); | |
352 | ||
353 | ei_status.name = pci_clone_list[chip_idx].name; | |
354 | ei_status.tx_start_page = start_page; | |
355 | ei_status.stop_page = stop_page; | |
356 | ei_status.word16 = 1; | |
357 | ei_status.ne2k_flags = flags; | |
358 | if (fnd_cnt < MAX_UNITS) { | |
359 | if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) | |
360 | ei_status.ne2k_flags |= FORCE_FDX; | |
361 | } | |
362 | ||
363 | ei_status.rx_start_page = start_page + TX_PAGES; | |
364 | #ifdef PACKETBUF_MEMSIZE | |
365 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | |
366 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; | |
367 | #endif | |
368 | ||
369 | ei_status.reset_8390 = &ne2k_pci_reset_8390; | |
370 | ei_status.block_input = &ne2k_pci_block_input; | |
371 | ei_status.block_output = &ne2k_pci_block_output; | |
372 | ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; | |
373 | ei_status.priv = (unsigned long) pdev; | |
4e4fd4e4 | 374 | |
1da177e4 | 375 | dev->ethtool_ops = &ne2k_pci_ethtool_ops; |
1da177e4 LT |
376 | NS8390_init(dev, 0); |
377 | ||
eb457f36 | 378 | memcpy(dev->dev_addr, SA_prom, dev->addr_len); |
379b026e | 379 | |
1da177e4 LT |
380 | i = register_netdev(dev); |
381 | if (i) | |
382 | goto err_out_free_netdev; | |
383 | ||
c45f812f MW |
384 | netdev_info(dev, "%s found at %#lx, IRQ %d, %pM.\n", |
385 | pci_clone_list[chip_idx].name, ioaddr, dev->irq, | |
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); | |
eb69c5bf JJB |
394 | err_out: |
395 | pci_disable_device(pdev); | |
1da177e4 | 396 | return -ENODEV; |
1da177e4 LT |
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; | |
c45f812f | 457 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 | 458 | |
c45f812f MW |
459 | netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", |
460 | jiffies); | |
1da177e4 LT |
461 | |
462 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
463 | ||
464 | ei_status.txing = 0; | |
465 | ei_status.dmaing = 0; | |
466 | ||
467 | /* This check _should_not_ be necessary, omit eventually. */ | |
468 | while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) | |
469 | if (jiffies - reset_start_time > 2) { | |
c45f812f | 470 | netdev_err(dev, "ne2k_pci_reset_8390() did not complete.\n"); |
1da177e4 LT |
471 | break; |
472 | } | |
473 | outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ | |
474 | } | |
475 | ||
476 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
477 | we don't need to be concerned with ring wrap as the header will be at | |
478 | the start of a page, so we optimize accordingly. */ | |
479 | ||
480 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
481 | { | |
482 | ||
483 | long nic_base = dev->base_addr; | |
484 | ||
485 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
486 | if (ei_status.dmaing) { | |
c45f812f | 487 | netdev_err(dev, "DMAing conflict in ne2k_pci_get_8390_hdr " |
1da177e4 | 488 | "[DMAstat:%d][irqlock:%d].\n", |
c45f812f | 489 | ei_status.dmaing, ei_status.irqlock); |
1da177e4 LT |
490 | return; |
491 | } | |
492 | ||
493 | ei_status.dmaing |= 0x01; | |
494 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
495 | outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | |
496 | outb(0, nic_base + EN0_RCNTHI); | |
497 | outb(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
498 | outb(ring_page, nic_base + EN0_RSARHI); | |
499 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
500 | ||
501 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
502 | insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); | |
503 | } else { | |
504 | *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); | |
505 | le16_to_cpus(&hdr->count); | |
506 | } | |
507 | ||
508 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
509 | ei_status.dmaing &= ~0x01; | |
510 | } | |
511 | ||
512 | /* Block input and output, similar to the Crynwr packet driver. If you | |
513 | are porting to a new ethercard, look at the packet driver source for hints. | |
514 | The NEx000 doesn't share the on-board packet memory -- you have to put | |
515 | the packet out through the "remote DMA" dataport using outb. */ | |
516 | ||
517 | static void ne2k_pci_block_input(struct net_device *dev, int count, | |
518 | struct sk_buff *skb, int ring_offset) | |
519 | { | |
520 | long nic_base = dev->base_addr; | |
521 | char *buf = skb->data; | |
522 | ||
523 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
524 | if (ei_status.dmaing) { | |
c45f812f | 525 | netdev_err(dev, "DMAing conflict in ne2k_pci_block_input " |
1da177e4 | 526 | "[DMAstat:%d][irqlock:%d].\n", |
c45f812f | 527 | ei_status.dmaing, ei_status.irqlock); |
1da177e4 LT |
528 | return; |
529 | } | |
530 | ei_status.dmaing |= 0x01; | |
531 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) | |
532 | count = (count + 3) & 0xFFFC; | |
533 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
534 | outb(count & 0xff, nic_base + EN0_RCNTLO); | |
535 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
536 | outb(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
537 | outb(ring_offset >> 8, nic_base + EN0_RSARHI); | |
538 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
539 | ||
540 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
541 | insw(NE_BASE + NE_DATAPORT,buf,count>>1); | |
542 | if (count & 0x01) { | |
543 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); | |
544 | } | |
545 | } else { | |
546 | insl(NE_BASE + NE_DATAPORT, buf, count>>2); | |
547 | if (count & 3) { | |
548 | buf += count & ~3; | |
549 | if (count & 2) { | |
3b5e26f7 | 550 | __le16 *b = (__le16 *)buf; |
1da177e4 | 551 | |
3b5e26f7 | 552 | *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); |
1da177e4 LT |
553 | buf = (char *)b; |
554 | } | |
555 | if (count & 1) | |
556 | *buf = inb(NE_BASE + NE_DATAPORT); | |
557 | } | |
558 | } | |
559 | ||
560 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
561 | ei_status.dmaing &= ~0x01; | |
562 | } | |
563 | ||
564 | static void ne2k_pci_block_output(struct net_device *dev, int count, | |
565 | const unsigned char *buf, const int start_page) | |
566 | { | |
567 | long nic_base = NE_BASE; | |
568 | unsigned long dma_start; | |
569 | ||
570 | /* On little-endian it's always safe to round the count up for | |
571 | word writes. */ | |
572 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) | |
573 | count = (count + 3) & 0xFFFC; | |
574 | else | |
575 | if (count & 0x01) | |
576 | count++; | |
577 | ||
578 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
579 | if (ei_status.dmaing) { | |
c45f812f | 580 | netdev_err(dev, "DMAing conflict in ne2k_pci_block_output." |
1da177e4 | 581 | "[DMAstat:%d][irqlock:%d]\n", |
c45f812f | 582 | ei_status.dmaing, ei_status.irqlock); |
1da177e4 LT |
583 | return; |
584 | } | |
585 | ei_status.dmaing |= 0x01; | |
586 | /* We should already be in page 0, but to be safe... */ | |
587 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
588 | ||
589 | #ifdef NE8390_RW_BUGFIX | |
590 | /* Handle the read-before-write bug the same way as the | |
591 | Crynwr packet driver -- the NatSemi method doesn't work. | |
592 | Actually this doesn't always work either, but if you have | |
593 | problems with your NEx000 this is better than nothing! */ | |
594 | outb(0x42, nic_base + EN0_RCNTLO); | |
595 | outb(0x00, nic_base + EN0_RCNTHI); | |
596 | outb(0x42, nic_base + EN0_RSARLO); | |
597 | outb(0x00, nic_base + EN0_RSARHI); | |
598 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
599 | #endif | |
600 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
601 | ||
602 | /* Now the normal output. */ | |
603 | outb(count & 0xff, nic_base + EN0_RCNTLO); | |
604 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
605 | outb(0x00, nic_base + EN0_RSARLO); | |
606 | outb(start_page, nic_base + EN0_RSARHI); | |
607 | outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
608 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
609 | outsw(NE_BASE + NE_DATAPORT, buf, count>>1); | |
610 | } else { | |
611 | outsl(NE_BASE + NE_DATAPORT, buf, count>>2); | |
612 | if (count & 3) { | |
613 | buf += count & ~3; | |
614 | if (count & 2) { | |
3b5e26f7 | 615 | __le16 *b = (__le16 *)buf; |
1da177e4 | 616 | |
3b5e26f7 | 617 | outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); |
1da177e4 LT |
618 | buf = (char *)b; |
619 | } | |
620 | } | |
621 | } | |
622 | ||
623 | dma_start = jiffies; | |
624 | ||
625 | while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
626 | if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ | |
c45f812f | 627 | netdev_warn(dev, "timeout waiting for Tx RDC.\n"); |
1da177e4 LT |
628 | ne2k_pci_reset_8390(dev); |
629 | NS8390_init(dev,1); | |
630 | break; | |
631 | } | |
632 | ||
633 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
634 | ei_status.dmaing &= ~0x01; | |
1da177e4 LT |
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 | ||
68aad78c RJ |
643 | strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
644 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); | |
645 | strlcpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); | |
1da177e4 LT |
646 | } |
647 | ||
c45f812f MW |
648 | static u32 ne2k_pci_get_msglevel(struct net_device *dev) |
649 | { | |
650 | struct ei_device *ei_local = netdev_priv(dev); | |
651 | ||
652 | return ei_local->msg_enable; | |
653 | } | |
654 | ||
655 | static void ne2k_pci_set_msglevel(struct net_device *dev, u32 v) | |
656 | { | |
657 | struct ei_device *ei_local = netdev_priv(dev); | |
658 | ||
659 | ei_local->msg_enable = v; | |
660 | } | |
661 | ||
7282d491 | 662 | static const struct ethtool_ops ne2k_pci_ethtool_ops = { |
1da177e4 | 663 | .get_drvinfo = ne2k_pci_get_drvinfo, |
c45f812f MW |
664 | .get_msglevel = ne2k_pci_get_msglevel, |
665 | .set_msglevel = ne2k_pci_set_msglevel, | |
1da177e4 LT |
666 | }; |
667 | ||
4168ac0e | 668 | static void ne2k_pci_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
669 | { |
670 | struct net_device *dev = pci_get_drvdata(pdev); | |
671 | ||
5d9428de | 672 | BUG_ON(!dev); |
1da177e4 LT |
673 | unregister_netdev(dev); |
674 | release_region(dev->base_addr, NE_IO_EXTENT); | |
675 | free_netdev(dev); | |
676 | pci_disable_device(pdev); | |
1da177e4 LT |
677 | } |
678 | ||
679 | #ifdef CONFIG_PM | |
680 | static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) | |
681 | { | |
682 | struct net_device *dev = pci_get_drvdata (pdev); | |
683 | ||
684 | netif_device_detach(dev); | |
685 | pci_save_state(pdev); | |
d58da590 | 686 | pci_disable_device(pdev); |
1da177e4 LT |
687 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | static int ne2k_pci_resume (struct pci_dev *pdev) | |
693 | { | |
694 | struct net_device *dev = pci_get_drvdata (pdev); | |
cad1b9da | 695 | int rc; |
1da177e4 | 696 | |
1ca01512 | 697 | pci_set_power_state(pdev, PCI_D0); |
1da177e4 | 698 | pci_restore_state(pdev); |
cad1b9da JG |
699 | |
700 | rc = pci_enable_device(pdev); | |
701 | if (rc) | |
702 | return rc; | |
703 | ||
1da177e4 LT |
704 | NS8390_init(dev, 1); |
705 | netif_device_attach(dev); | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | #endif /* CONFIG_PM */ | |
711 | ||
712 | ||
713 | static struct pci_driver ne2k_driver = { | |
714 | .name = DRV_NAME, | |
715 | .probe = ne2k_pci_init_one, | |
4168ac0e | 716 | .remove = ne2k_pci_remove_one, |
1da177e4 LT |
717 | .id_table = ne2k_pci_tbl, |
718 | #ifdef CONFIG_PM | |
719 | .suspend = ne2k_pci_suspend, | |
720 | .resume = ne2k_pci_resume, | |
721 | #endif /* CONFIG_PM */ | |
722 | ||
723 | }; | |
724 | ||
725 | ||
726 | static int __init ne2k_pci_init(void) | |
727 | { | |
728 | /* when a module, this is printed whether or not devices are found in probe */ | |
729 | #ifdef MODULE | |
730 | printk(version); | |
731 | #endif | |
29917620 | 732 | return pci_register_driver(&ne2k_driver); |
1da177e4 LT |
733 | } |
734 | ||
735 | ||
736 | static void __exit ne2k_pci_cleanup(void) | |
737 | { | |
738 | pci_unregister_driver (&ne2k_driver); | |
739 | } | |
740 | ||
741 | module_init(ne2k_pci_init); | |
742 | module_exit(ne2k_pci_cleanup); |