Commit | Line | Data |
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dc3eb2f4 | 1 | // SPDX-License-Identifier: GPL-1.0+ |
53c0ec4f AW |
2 | /* A Linux device driver for PCI NE2000 clones. |
3 | * | |
4 | * Authors and other copyright holders: | |
5 | * 1992-2000 by Donald Becker, NE2000 core and various modifications. | |
6 | * 1995-1998 by Paul Gortmaker, core modifications and PCI support. | |
7 | * Copyright 1993 assigned to the United States Government as represented | |
8 | * by the Director, National Security Agency. | |
9 | * | |
10 | * This software may be used and distributed according to the terms of | |
11 | * the GNU General Public License (GPL), incorporated herein by reference. | |
12 | * Drivers based on or derived from this code fall under the GPL and must | |
13 | * retain the authorship, copyright and license notice. This file is not | |
14 | * a complete program and may only be used when the entire operating | |
15 | * system is licensed under the GPL. | |
16 | * | |
17 | * The author may be reached as becker@scyld.com, or C/O | |
18 | * Scyld Computing Corporation | |
19 | * 410 Severn Ave., Suite 210 | |
20 | * Annapolis MD 21403 | |
21 | * | |
22 | * Issues remaining: | |
23 | * People are making PCI NE2000 clones! Oh the horror, the horror... | |
24 | * Limited full-duplex support. | |
25 | */ | |
1da177e4 LT |
26 | |
27 | #define DRV_NAME "ne2k-pci" | |
53c0ec4f AW |
28 | #define DRV_DESCRIPTION "PCI NE2000 clone driver" |
29 | #define DRV_AUTHOR "Donald Becker / Paul Gortmaker" | |
1da177e4 LT |
30 | #define DRV_VERSION "1.03" |
31 | #define DRV_RELDATE "9/22/2003" | |
32 | ||
53c0ec4f | 33 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
1da177e4 LT |
34 | |
35 | /* The user-configurable values. | |
53c0ec4f AW |
36 | * These may be modified when a driver module is loaded. |
37 | */ | |
38 | ||
39 | /* More are supported, limit only on options */ | |
40 | #define MAX_UNITS 8 | |
1da177e4 | 41 | |
1da177e4 LT |
42 | /* Used to pass the full-duplex flag, etc. */ |
43 | static int full_duplex[MAX_UNITS]; | |
44 | static int options[MAX_UNITS]; | |
45 | ||
46 | /* Force a non std. amount of memory. Units are 256 byte pages. */ | |
47 | /* #define PACKETBUF_MEMSIZE 0x40 */ | |
48 | ||
49 | ||
50 | #include <linux/module.h> | |
51 | #include <linux/kernel.h> | |
52 | #include <linux/errno.h> | |
53 | #include <linux/pci.h> | |
54 | #include <linux/init.h> | |
55 | #include <linux/interrupt.h> | |
56 | #include <linux/ethtool.h> | |
57 | #include <linux/netdevice.h> | |
58 | #include <linux/etherdevice.h> | |
59 | ||
53c0ec4f | 60 | #include <linux/io.h> |
1da177e4 | 61 | #include <asm/irq.h> |
7c0f6ba6 | 62 | #include <linux/uaccess.h> |
1da177e4 LT |
63 | |
64 | #include "8390.h" | |
65 | ||
a050d82f AW |
66 | static int ne2k_msg_enable; |
67 | ||
68 | static const int default_msg_level = (NETIF_MSG_DRV | NETIF_MSG_PROBE | | |
69 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR); | |
c45f812f | 70 | |
1da177e4 LT |
71 | #if defined(__powerpc__) |
72 | #define inl_le(addr) le32_to_cpu(inl(addr)) | |
73 | #define inw_le(addr) le16_to_cpu(inw(addr)) | |
74 | #endif | |
75 | ||
53c0ec4f AW |
76 | MODULE_AUTHOR(DRV_AUTHOR); |
77 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
78 | MODULE_VERSION(DRV_VERSION); | |
1da177e4 LT |
79 | MODULE_LICENSE("GPL"); |
80 | ||
a050d82f | 81 | module_param_named(msg_enable, ne2k_msg_enable, int, 0444); |
1da177e4 LT |
82 | module_param_array(options, int, NULL, 0); |
83 | module_param_array(full_duplex, int, NULL, 0); | |
c45f812f | 84 | MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); |
1da177e4 LT |
85 | MODULE_PARM_DESC(options, "Bit 5: full duplex"); |
86 | MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); | |
87 | ||
53c0ec4f AW |
88 | /* Some defines that people can play with if so inclined. |
89 | */ | |
1da177e4 LT |
90 | |
91 | /* Use 32 bit data-movement operations instead of 16 bit. */ | |
92 | #define USE_LONGIO | |
93 | ||
94 | /* Do we implement the read before write bugfix ? */ | |
95 | /* #define NE_RW_BUGFIX */ | |
96 | ||
53c0ec4f AW |
97 | /* Flags. We rename an existing ei_status field to store flags! |
98 | * Thus only the low 8 bits are usable for non-init-time flags. | |
99 | */ | |
1da177e4 | 100 | #define ne2k_flags reg0 |
53c0ec4f | 101 | |
1da177e4 | 102 | enum { |
53c0ec4f AW |
103 | /* Chip can do only 16/32-bit xfers. */ |
104 | ONLY_16BIT_IO = 8, ONLY_32BIT_IO = 4, | |
105 | /* User override. */ | |
106 | FORCE_FDX = 0x20, | |
107 | REALTEK_FDX = 0x40, HOLTEK_FDX = 0x80, | |
108 | STOP_PG_0x60 = 0x100, | |
1da177e4 LT |
109 | }; |
110 | ||
111 | enum ne2k_pci_chipsets { | |
112 | CH_RealTek_RTL_8029 = 0, | |
113 | CH_Winbond_89C940, | |
114 | CH_Compex_RL2000, | |
115 | CH_KTI_ET32P2, | |
116 | CH_NetVin_NV5000SC, | |
117 | CH_Via_86C926, | |
118 | CH_SureCom_NE34, | |
119 | CH_Winbond_W89C940F, | |
120 | CH_Holtek_HT80232, | |
121 | CH_Holtek_HT80229, | |
122 | CH_Winbond_89C940_8c4a, | |
123 | }; | |
124 | ||
125 | ||
b2fd16b4 | 126 | static struct { |
1da177e4 LT |
127 | char *name; |
128 | int flags; | |
4168ac0e | 129 | } pci_clone_list[] = { |
53c0ec4f | 130 | {"RealTek RTL-8029(AS)", REALTEK_FDX}, |
1da177e4 LT |
131 | {"Winbond 89C940", 0}, |
132 | {"Compex RL2000", 0}, | |
133 | {"KTI ET32P2", 0}, | |
134 | {"NetVin NV5000SC", 0}, | |
135 | {"Via 86C926", ONLY_16BIT_IO}, | |
136 | {"SureCom NE34", 0}, | |
137 | {"Winbond W89C940F", 0}, | |
138 | {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, | |
139 | {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, | |
140 | {"Winbond W89C940(misprogrammed)", 0}, | |
141 | {NULL,} | |
142 | }; | |
143 | ||
144 | ||
9baa3c34 | 145 | static const struct pci_device_id ne2k_pci_tbl[] = { |
1da177e4 LT |
146 | { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, |
147 | { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, | |
148 | { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, | |
149 | { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, | |
150 | { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, | |
151 | { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, | |
152 | { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, | |
153 | { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, | |
154 | { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, | |
155 | { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, | |
156 | { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, | |
157 | { 0, } | |
158 | }; | |
53c0ec4f | 159 | |
1da177e4 LT |
160 | MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); |
161 | ||
162 | ||
163 | /* ---- No user-serviceable parts below ---- */ | |
164 | ||
165 | #define NE_BASE (dev->base_addr) | |
53c0ec4f | 166 | #define NE_CMD 0x00 |
1da177e4 LT |
167 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ |
168 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
169 | #define NE_IO_EXTENT 0x20 | |
170 | ||
171 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
172 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
173 | ||
174 | ||
175 | static int ne2k_pci_open(struct net_device *dev); | |
176 | static int ne2k_pci_close(struct net_device *dev); | |
177 | ||
178 | static void ne2k_pci_reset_8390(struct net_device *dev); | |
53c0ec4f AW |
179 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, |
180 | struct e8390_pkt_hdr *hdr, int ring_page); | |
1da177e4 | 181 | static void ne2k_pci_block_input(struct net_device *dev, int count, |
53c0ec4f | 182 | struct sk_buff *skb, int ring_offset); |
1da177e4 | 183 | static void ne2k_pci_block_output(struct net_device *dev, const int count, |
53c0ec4f AW |
184 | const unsigned char *buf, |
185 | const int start_page); | |
7282d491 | 186 | static const struct ethtool_ops ne2k_pci_ethtool_ops; |
1da177e4 | 187 | |
6aa20a22 | 188 | |
1da177e4 LT |
189 | |
190 | /* There is no room in the standard 8390 structure for extra info we need, | |
53c0ec4f AW |
191 | * so we build a meta/outer-wrapper structure.. |
192 | */ | |
1da177e4 LT |
193 | struct ne2k_pci_card { |
194 | struct net_device *dev; | |
195 | struct pci_dev *pci_dev; | |
196 | }; | |
197 | ||
198 | ||
199 | ||
53c0ec4f AW |
200 | /* NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet |
201 | * buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes | |
202 | * 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be | |
203 | * detected by their SA prefix. | |
204 | * | |
205 | * Reading the SAPROM from a word-wide card with the 8390 set in byte-wide | |
206 | * mode results in doubled values, which can be detected and compensated for. | |
207 | * | |
208 | * The probe is also responsible for initializing the card and filling | |
209 | * in the 'dev' and 'ei_status' structures. | |
210 | */ | |
1da177e4 | 211 | |
4e4fd4e4 SH |
212 | static const struct net_device_ops ne2k_netdev_ops = { |
213 | .ndo_open = ne2k_pci_open, | |
214 | .ndo_stop = ne2k_pci_close, | |
215 | .ndo_start_xmit = ei_start_xmit, | |
216 | .ndo_tx_timeout = ei_tx_timeout, | |
217 | .ndo_get_stats = ei_get_stats, | |
afc4b13d | 218 | .ndo_set_rx_mode = ei_set_multicast_list, |
4e4fd4e4 | 219 | .ndo_validate_addr = eth_validate_addr, |
53c0ec4f | 220 | .ndo_set_mac_address = eth_mac_addr, |
4e4fd4e4 SH |
221 | #ifdef CONFIG_NET_POLL_CONTROLLER |
222 | .ndo_poll_controller = ei_poll, | |
223 | #endif | |
224 | }; | |
1da177e4 | 225 | |
4168ac0e BP |
226 | static int ne2k_pci_init_one(struct pci_dev *pdev, |
227 | const struct pci_device_id *ent) | |
1da177e4 LT |
228 | { |
229 | struct net_device *dev; | |
230 | int i; | |
231 | unsigned char SA_prom[32]; | |
232 | int start_page, stop_page; | |
233 | int irq, reg0, chip_idx = ent->driver_data; | |
234 | static unsigned int fnd_cnt; | |
235 | long ioaddr; | |
236 | int flags = pci_clone_list[chip_idx].flags; | |
c45f812f | 237 | struct ei_device *ei_local; |
1da177e4 | 238 | |
1da177e4 LT |
239 | fnd_cnt++; |
240 | ||
53c0ec4f | 241 | i = pci_enable_device(pdev); |
1da177e4 LT |
242 | if (i) |
243 | return i; | |
244 | ||
53c0ec4f | 245 | ioaddr = pci_resource_start(pdev, 0); |
1da177e4 LT |
246 | irq = pdev->irq; |
247 | ||
53c0ec4f | 248 | if (!ioaddr || ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) == 0)) { |
9b91cf9d | 249 | dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); |
eb69c5bf | 250 | goto err_out; |
1da177e4 LT |
251 | } |
252 | ||
53c0ec4f | 253 | if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) { |
9b91cf9d | 254 | dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", |
1da177e4 | 255 | NE_IO_EXTENT, ioaddr); |
eb69c5bf | 256 | goto err_out; |
1da177e4 LT |
257 | } |
258 | ||
259 | reg0 = inb(ioaddr); | |
260 | if (reg0 == 0xFF) | |
261 | goto err_out_free_res; | |
262 | ||
263 | /* Do a preliminary verification that we have a 8390. */ | |
264 | { | |
265 | int regd; | |
53c0ec4f AW |
266 | |
267 | outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); | |
1da177e4 LT |
268 | regd = inb(ioaddr + 0x0d); |
269 | outb(0xff, ioaddr + 0x0d); | |
53c0ec4f AW |
270 | outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); |
271 | /* Clear the counter by reading. */ | |
272 | inb(ioaddr + EN0_COUNTER0); | |
1da177e4 LT |
273 | if (inb(ioaddr + EN0_COUNTER0) != 0) { |
274 | outb(reg0, ioaddr); | |
53c0ec4f AW |
275 | /* Restore the old values. */ |
276 | outb(regd, ioaddr + 0x0d); | |
1da177e4 LT |
277 | goto err_out_free_res; |
278 | } | |
279 | } | |
280 | ||
281 | /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ | |
282 | dev = alloc_ei_netdev(); | |
283 | if (!dev) { | |
9b91cf9d | 284 | dev_err(&pdev->dev, "cannot allocate ethernet device\n"); |
1da177e4 LT |
285 | goto err_out_free_res; |
286 | } | |
4e4fd4e4 | 287 | dev->netdev_ops = &ne2k_netdev_ops; |
c45f812f | 288 | ei_local = netdev_priv(dev); |
a050d82f | 289 | ei_local->msg_enable = netif_msg_init(ne2k_msg_enable, default_msg_level); |
4e4fd4e4 | 290 | |
1da177e4 LT |
291 | SET_NETDEV_DEV(dev, &pdev->dev); |
292 | ||
293 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
294 | { | |
295 | unsigned long reset_start_time = jiffies; | |
296 | ||
297 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
298 | ||
53c0ec4f AW |
299 | /* This looks like a horrible timing loop, but it should never |
300 | * take more than a few cycles. | |
301 | */ | |
1da177e4 LT |
302 | while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) |
303 | /* Limit wait: '2' avoids jiffy roll-over. */ | |
304 | if (jiffies - reset_start_time > 2) { | |
9b91cf9d | 305 | dev_err(&pdev->dev, |
2e8a538d | 306 | "Card failure (no reset ack).\n"); |
1da177e4 LT |
307 | goto err_out_free_netdev; |
308 | } | |
53c0ec4f AW |
309 | /* Ack all intr. */ |
310 | outb(0xff, ioaddr + EN0_ISR); | |
1da177e4 LT |
311 | } |
312 | ||
313 | /* Read the 16 bytes of station address PROM. | |
53c0ec4f AW |
314 | * We must first initialize registers, similar |
315 | * to NS8390_init(eifdev, 0). | |
316 | * We can't reliably read the SAPROM address without this. | |
317 | * (I learned the hard way!). | |
318 | */ | |
1da177e4 LT |
319 | { |
320 | struct {unsigned char value, offset; } program_seq[] = { | |
53c0ec4f AW |
321 | /* Select page 0 */ |
322 | {E8390_NODMA + E8390_PAGE0 + E8390_STOP, E8390_CMD}, | |
323 | /* Set word-wide access */ | |
324 | {0x49, EN0_DCFG}, | |
325 | /* Clear the count regs. */ | |
326 | {0x00, EN0_RCNTLO}, | |
327 | /* Mask completion IRQ */ | |
1da177e4 | 328 | {0x00, EN0_RCNTHI}, |
53c0ec4f | 329 | {0x00, EN0_IMR}, |
1da177e4 | 330 | {0xFF, EN0_ISR}, |
53c0ec4f AW |
331 | /* 0x20 Set to monitor */ |
332 | {E8390_RXOFF, EN0_RXCR}, | |
333 | /* 0x02 and loopback mode */ | |
334 | {E8390_TXOFF, EN0_TXCR}, | |
1da177e4 LT |
335 | {32, EN0_RCNTLO}, |
336 | {0x00, EN0_RCNTHI}, | |
53c0ec4f AW |
337 | /* DMA starting at 0x0000 */ |
338 | {0x00, EN0_RSARLO}, | |
1da177e4 LT |
339 | {0x00, EN0_RSARHI}, |
340 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
341 | }; | |
ff8ac609 | 342 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
53c0ec4f AW |
343 | outb(program_seq[i].value, |
344 | ioaddr + program_seq[i].offset); | |
1da177e4 LT |
345 | |
346 | } | |
347 | ||
348 | /* Note: all PCI cards have at least 16 bit access, so we don't have | |
53c0ec4f AW |
349 | * to check for 8 bit cards. Most cards permit 32 bit access. |
350 | */ | |
1da177e4 LT |
351 | if (flags & ONLY_32BIT_IO) { |
352 | for (i = 0; i < 4 ; i++) | |
353 | ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); | |
354 | } else | |
53c0ec4f | 355 | for (i = 0; i < 32 /* sizeof(SA_prom )*/; i++) |
1da177e4 LT |
356 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); |
357 | ||
358 | /* We always set the 8390 registers for word mode. */ | |
359 | outb(0x49, ioaddr + EN0_DCFG); | |
360 | start_page = NESM_START_PG; | |
361 | ||
362 | stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; | |
363 | ||
364 | /* Set up the rest of the parameters. */ | |
365 | dev->irq = irq; | |
366 | dev->base_addr = ioaddr; | |
367 | pci_set_drvdata(pdev, dev); | |
368 | ||
369 | ei_status.name = pci_clone_list[chip_idx].name; | |
370 | ei_status.tx_start_page = start_page; | |
371 | ei_status.stop_page = stop_page; | |
372 | ei_status.word16 = 1; | |
373 | ei_status.ne2k_flags = flags; | |
374 | if (fnd_cnt < MAX_UNITS) { | |
53c0ec4f | 375 | if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) |
1da177e4 LT |
376 | ei_status.ne2k_flags |= FORCE_FDX; |
377 | } | |
378 | ||
379 | ei_status.rx_start_page = start_page + TX_PAGES; | |
380 | #ifdef PACKETBUF_MEMSIZE | |
381 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | |
382 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; | |
383 | #endif | |
384 | ||
385 | ei_status.reset_8390 = &ne2k_pci_reset_8390; | |
386 | ei_status.block_input = &ne2k_pci_block_input; | |
387 | ei_status.block_output = &ne2k_pci_block_output; | |
388 | ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; | |
389 | ei_status.priv = (unsigned long) pdev; | |
4e4fd4e4 | 390 | |
1da177e4 | 391 | dev->ethtool_ops = &ne2k_pci_ethtool_ops; |
1da177e4 LT |
392 | NS8390_init(dev, 0); |
393 | ||
a05e4c0a | 394 | eth_hw_addr_set(dev, SA_prom); |
379b026e | 395 | |
1da177e4 LT |
396 | i = register_netdev(dev); |
397 | if (i) | |
398 | goto err_out_free_netdev; | |
399 | ||
c45f812f MW |
400 | netdev_info(dev, "%s found at %#lx, IRQ %d, %pM.\n", |
401 | pci_clone_list[chip_idx].name, ioaddr, dev->irq, | |
402 | dev->dev_addr); | |
0795af57 | 403 | |
1da177e4 LT |
404 | return 0; |
405 | ||
406 | err_out_free_netdev: | |
53c0ec4f | 407 | free_netdev(dev); |
1da177e4 | 408 | err_out_free_res: |
53c0ec4f | 409 | release_region(ioaddr, NE_IO_EXTENT); |
eb69c5bf JJB |
410 | err_out: |
411 | pci_disable_device(pdev); | |
1da177e4 | 412 | return -ENODEV; |
1da177e4 LT |
413 | } |
414 | ||
53c0ec4f | 415 | /* Magic incantation sequence for full duplex on the supported cards. |
1da177e4 LT |
416 | */ |
417 | static inline int set_realtek_fdx(struct net_device *dev) | |
418 | { | |
419 | long ioaddr = dev->base_addr; | |
420 | ||
421 | outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ | |
422 | outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ | |
423 | outb(0x40, ioaddr + 0x06); /* Enable full duplex */ | |
424 | outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ | |
425 | outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ | |
426 | return 0; | |
427 | } | |
428 | ||
429 | static inline int set_holtek_fdx(struct net_device *dev) | |
430 | { | |
431 | long ioaddr = dev->base_addr; | |
432 | ||
433 | outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); | |
434 | return 0; | |
435 | } | |
436 | ||
437 | static int ne2k_pci_set_fdx(struct net_device *dev) | |
438 | { | |
6aa20a22 | 439 | if (ei_status.ne2k_flags & REALTEK_FDX) |
1da177e4 LT |
440 | return set_realtek_fdx(dev); |
441 | else if (ei_status.ne2k_flags & HOLTEK_FDX) | |
442 | return set_holtek_fdx(dev); | |
443 | ||
444 | return -EOPNOTSUPP; | |
445 | } | |
446 | ||
447 | static int ne2k_pci_open(struct net_device *dev) | |
448 | { | |
53c0ec4f AW |
449 | int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, |
450 | dev->name, dev); | |
451 | ||
1da177e4 LT |
452 | if (ret) |
453 | return ret; | |
454 | ||
455 | if (ei_status.ne2k_flags & FORCE_FDX) | |
456 | ne2k_pci_set_fdx(dev); | |
457 | ||
458 | ei_open(dev); | |
459 | return 0; | |
460 | } | |
461 | ||
462 | static int ne2k_pci_close(struct net_device *dev) | |
463 | { | |
464 | ei_close(dev); | |
465 | free_irq(dev->irq, dev); | |
466 | return 0; | |
467 | } | |
468 | ||
469 | /* Hard reset the card. This used to pause for the same period that a | |
53c0ec4f AW |
470 | * 8390 reset command required, but that shouldn't be necessary. |
471 | */ | |
1da177e4 LT |
472 | static void ne2k_pci_reset_8390(struct net_device *dev) |
473 | { | |
474 | unsigned long reset_start_time = jiffies; | |
c45f812f | 475 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 | 476 | |
c45f812f MW |
477 | netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", |
478 | jiffies); | |
1da177e4 LT |
479 | |
480 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
481 | ||
482 | ei_status.txing = 0; | |
483 | ei_status.dmaing = 0; | |
484 | ||
485 | /* This check _should_not_ be necessary, omit eventually. */ | |
486 | while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) | |
487 | if (jiffies - reset_start_time > 2) { | |
53c0ec4f | 488 | netdev_err(dev, "%s did not complete.\n", __func__); |
1da177e4 LT |
489 | break; |
490 | } | |
53c0ec4f AW |
491 | /* Ack intr. */ |
492 | outb(ENISR_RESET, NE_BASE + EN0_ISR); | |
1da177e4 LT |
493 | } |
494 | ||
495 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
53c0ec4f AW |
496 | * we don't need to be concerned with ring wrap as the header will be at |
497 | * the start of a page, so we optimize accordingly. | |
498 | */ | |
1da177e4 | 499 | |
53c0ec4f AW |
500 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, |
501 | struct e8390_pkt_hdr *hdr, int ring_page) | |
1da177e4 LT |
502 | { |
503 | ||
504 | long nic_base = dev->base_addr; | |
505 | ||
53c0ec4f AW |
506 | /* This *shouldn't* happen. If it does, it's the last thing you'll see |
507 | */ | |
1da177e4 | 508 | if (ei_status.dmaing) { |
53c0ec4f AW |
509 | netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d].\n", |
510 | __func__, ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
511 | return; |
512 | } | |
513 | ||
514 | ei_status.dmaing |= 0x01; | |
53c0ec4f | 515 | outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); |
1da177e4 LT |
516 | outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); |
517 | outb(0, nic_base + EN0_RCNTHI); | |
518 | outb(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
519 | outb(ring_page, nic_base + EN0_RSARHI); | |
520 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
521 | ||
522 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
53c0ec4f AW |
523 | insw(NE_BASE + NE_DATAPORT, hdr, |
524 | sizeof(struct e8390_pkt_hdr) >> 1); | |
1da177e4 | 525 | } else { |
53c0ec4f | 526 | *(u32 *)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); |
1da177e4 LT |
527 | le16_to_cpus(&hdr->count); |
528 | } | |
53c0ec4f AW |
529 | /* Ack intr. */ |
530 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
1da177e4 LT |
531 | ei_status.dmaing &= ~0x01; |
532 | } | |
533 | ||
534 | /* Block input and output, similar to the Crynwr packet driver. If you | |
53c0ec4f AW |
535 | *are porting to a new ethercard, look at the packet driver source for hints. |
536 | *The NEx000 doesn't share the on-board packet memory -- you have to put | |
537 | *the packet out through the "remote DMA" dataport using outb. | |
538 | */ | |
1da177e4 LT |
539 | |
540 | static void ne2k_pci_block_input(struct net_device *dev, int count, | |
541 | struct sk_buff *skb, int ring_offset) | |
542 | { | |
543 | long nic_base = dev->base_addr; | |
544 | char *buf = skb->data; | |
545 | ||
53c0ec4f AW |
546 | /* This *shouldn't* happen. |
547 | * If it does, it's the last thing you'll see. | |
548 | */ | |
1da177e4 | 549 | if (ei_status.dmaing) { |
53c0ec4f AW |
550 | netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d]\n", |
551 | __func__, ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
552 | return; |
553 | } | |
554 | ei_status.dmaing |= 0x01; | |
555 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) | |
556 | count = (count + 3) & 0xFFFC; | |
53c0ec4f | 557 | outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); |
1da177e4 LT |
558 | outb(count & 0xff, nic_base + EN0_RCNTLO); |
559 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
560 | outb(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
561 | outb(ring_offset >> 8, nic_base + EN0_RSARHI); | |
53c0ec4f | 562 | outb(E8390_RREAD + E8390_START, nic_base + NE_CMD); |
1da177e4 LT |
563 | |
564 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
53c0ec4f AW |
565 | insw(NE_BASE + NE_DATAPORT, buf, count >> 1); |
566 | if (count & 0x01) | |
1da177e4 | 567 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); |
1da177e4 | 568 | } else { |
53c0ec4f | 569 | insl(NE_BASE + NE_DATAPORT, buf, count >> 2); |
1da177e4 LT |
570 | if (count & 3) { |
571 | buf += count & ~3; | |
572 | if (count & 2) { | |
3b5e26f7 | 573 | __le16 *b = (__le16 *)buf; |
1da177e4 | 574 | |
3b5e26f7 | 575 | *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); |
1da177e4 LT |
576 | buf = (char *)b; |
577 | } | |
578 | if (count & 1) | |
579 | *buf = inb(NE_BASE + NE_DATAPORT); | |
580 | } | |
581 | } | |
53c0ec4f AW |
582 | /* Ack intr. */ |
583 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
1da177e4 LT |
584 | ei_status.dmaing &= ~0x01; |
585 | } | |
586 | ||
587 | static void ne2k_pci_block_output(struct net_device *dev, int count, | |
53c0ec4f | 588 | const unsigned char *buf, const int start_page) |
1da177e4 LT |
589 | { |
590 | long nic_base = NE_BASE; | |
591 | unsigned long dma_start; | |
592 | ||
593 | /* On little-endian it's always safe to round the count up for | |
53c0ec4f AW |
594 | * word writes. |
595 | */ | |
1da177e4 LT |
596 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) |
597 | count = (count + 3) & 0xFFFC; | |
598 | else | |
599 | if (count & 0x01) | |
600 | count++; | |
601 | ||
53c0ec4f AW |
602 | /* This *shouldn't* happen. |
603 | * If it does, it's the last thing you'll see. | |
604 | */ | |
1da177e4 | 605 | if (ei_status.dmaing) { |
53c0ec4f AW |
606 | netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d]\n", |
607 | __func__, ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
608 | return; |
609 | } | |
610 | ei_status.dmaing |= 0x01; | |
611 | /* We should already be in page 0, but to be safe... */ | |
612 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
613 | ||
c24672cf | 614 | #ifdef NE_RW_BUGFIX |
1da177e4 | 615 | /* Handle the read-before-write bug the same way as the |
53c0ec4f AW |
616 | * Crynwr packet driver -- the NatSemi method doesn't work. |
617 | * Actually this doesn't always work either, but if you have | |
618 | * problems with your NEx000 this is better than nothing! | |
619 | */ | |
1da177e4 LT |
620 | outb(0x42, nic_base + EN0_RCNTLO); |
621 | outb(0x00, nic_base + EN0_RCNTHI); | |
622 | outb(0x42, nic_base + EN0_RSARLO); | |
623 | outb(0x00, nic_base + EN0_RSARHI); | |
624 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
625 | #endif | |
626 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
627 | ||
53c0ec4f | 628 | /* Now the normal output. */ |
1da177e4 LT |
629 | outb(count & 0xff, nic_base + EN0_RCNTLO); |
630 | outb(count >> 8, nic_base + EN0_RCNTHI); | |
631 | outb(0x00, nic_base + EN0_RSARLO); | |
632 | outb(start_page, nic_base + EN0_RSARHI); | |
633 | outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
634 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { | |
53c0ec4f | 635 | outsw(NE_BASE + NE_DATAPORT, buf, count >> 1); |
1da177e4 | 636 | } else { |
53c0ec4f | 637 | outsl(NE_BASE + NE_DATAPORT, buf, count >> 2); |
1da177e4 LT |
638 | if (count & 3) { |
639 | buf += count & ~3; | |
640 | if (count & 2) { | |
3b5e26f7 | 641 | __le16 *b = (__le16 *)buf; |
1da177e4 | 642 | |
3b5e26f7 | 643 | outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); |
1da177e4 LT |
644 | buf = (char *)b; |
645 | } | |
646 | } | |
647 | } | |
648 | ||
649 | dma_start = jiffies; | |
650 | ||
651 | while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
53c0ec4f AW |
652 | /* Avoid clock roll-over. */ |
653 | if (jiffies - dma_start > 2) { | |
c45f812f | 654 | netdev_warn(dev, "timeout waiting for Tx RDC.\n"); |
1da177e4 | 655 | ne2k_pci_reset_8390(dev); |
53c0ec4f | 656 | NS8390_init(dev, 1); |
1da177e4 LT |
657 | break; |
658 | } | |
53c0ec4f AW |
659 | /* Ack intr. */ |
660 | outb(ENISR_RDC, nic_base + EN0_ISR); | |
1da177e4 | 661 | ei_status.dmaing &= ~0x01; |
1da177e4 LT |
662 | } |
663 | ||
664 | static void ne2k_pci_get_drvinfo(struct net_device *dev, | |
665 | struct ethtool_drvinfo *info) | |
666 | { | |
4cf1653a | 667 | struct ei_device *ei = netdev_priv(dev); |
1da177e4 LT |
668 | struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; |
669 | ||
53c0ec4f AW |
670 | strscpy(info->driver, DRV_NAME, sizeof(info->driver)); |
671 | strscpy(info->version, DRV_VERSION, sizeof(info->version)); | |
672 | strscpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); | |
1da177e4 LT |
673 | } |
674 | ||
c45f812f MW |
675 | static u32 ne2k_pci_get_msglevel(struct net_device *dev) |
676 | { | |
677 | struct ei_device *ei_local = netdev_priv(dev); | |
678 | ||
679 | return ei_local->msg_enable; | |
680 | } | |
681 | ||
682 | static void ne2k_pci_set_msglevel(struct net_device *dev, u32 v) | |
683 | { | |
684 | struct ei_device *ei_local = netdev_priv(dev); | |
685 | ||
686 | ei_local->msg_enable = v; | |
687 | } | |
688 | ||
7282d491 | 689 | static const struct ethtool_ops ne2k_pci_ethtool_ops = { |
1da177e4 | 690 | .get_drvinfo = ne2k_pci_get_drvinfo, |
c45f812f MW |
691 | .get_msglevel = ne2k_pci_get_msglevel, |
692 | .set_msglevel = ne2k_pci_set_msglevel, | |
1da177e4 LT |
693 | }; |
694 | ||
4168ac0e | 695 | static void ne2k_pci_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
696 | { |
697 | struct net_device *dev = pci_get_drvdata(pdev); | |
698 | ||
5d9428de | 699 | BUG_ON(!dev); |
1da177e4 LT |
700 | unregister_netdev(dev); |
701 | release_region(dev->base_addr, NE_IO_EXTENT); | |
702 | free_netdev(dev); | |
703 | pci_disable_device(pdev); | |
1da177e4 LT |
704 | } |
705 | ||
33b7a252 | 706 | static int __maybe_unused ne2k_pci_suspend(struct device *dev_d) |
1da177e4 | 707 | { |
33b7a252 | 708 | struct net_device *dev = dev_get_drvdata(dev_d); |
1da177e4 LT |
709 | |
710 | netif_device_detach(dev); | |
1da177e4 LT |
711 | |
712 | return 0; | |
713 | } | |
714 | ||
33b7a252 | 715 | static int __maybe_unused ne2k_pci_resume(struct device *dev_d) |
1da177e4 | 716 | { |
33b7a252 | 717 | struct net_device *dev = dev_get_drvdata(dev_d); |
cad1b9da | 718 | |
1da177e4 LT |
719 | NS8390_init(dev, 1); |
720 | netif_device_attach(dev); | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
33b7a252 | 725 | static SIMPLE_DEV_PM_OPS(ne2k_pci_pm_ops, ne2k_pci_suspend, ne2k_pci_resume); |
1da177e4 LT |
726 | |
727 | static struct pci_driver ne2k_driver = { | |
728 | .name = DRV_NAME, | |
729 | .probe = ne2k_pci_init_one, | |
4168ac0e | 730 | .remove = ne2k_pci_remove_one, |
1da177e4 | 731 | .id_table = ne2k_pci_tbl, |
33b7a252 | 732 | .driver.pm = &ne2k_pci_pm_ops, |
1da177e4 LT |
733 | }; |
734 | ||
735 | ||
736 | static int __init ne2k_pci_init(void) | |
737 | { | |
29917620 | 738 | return pci_register_driver(&ne2k_driver); |
1da177e4 LT |
739 | } |
740 | ||
741 | ||
742 | static void __exit ne2k_pci_cleanup(void) | |
743 | { | |
53c0ec4f | 744 | pci_unregister_driver(&ne2k_driver); |
1da177e4 LT |
745 | } |
746 | ||
747 | module_init(ne2k_pci_init); | |
748 | module_exit(ne2k_pci_cleanup); |