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a3ea5df5 EI |
1 | /* |
2 | * QEMU ETRAX Ethernet Controller. | |
3 | * | |
4 | * Copyright (c) 2008 Edgar E. Iglesias, Axis Communications AB. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include <stdio.h> | |
26 | #include "hw.h" | |
27 | #include "net.h" | |
28 | ||
29 | #include "etraxfs_dma.h" | |
30 | ||
31 | #define D(x) | |
32 | ||
c6488268 EI |
33 | /* Advertisement control register. */ |
34 | #define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */ | |
35 | #define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */ | |
36 | #define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */ | |
37 | #define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */ | |
38 | ||
2e56350e EI |
39 | /* |
40 | * The MDIO extensions in the TDK PHY model were reversed engineered from the | |
41 | * linux driver (PHYID and Diagnostics reg). | |
42 | * TODO: Add friendly names for the register nums. | |
43 | */ | |
a3ea5df5 EI |
44 | struct qemu_phy |
45 | { | |
46 | uint32_t regs[32]; | |
47 | ||
48 | unsigned int (*read)(struct qemu_phy *phy, unsigned int req); | |
2e56350e EI |
49 | void (*write)(struct qemu_phy *phy, unsigned int req, |
50 | unsigned int data); | |
a3ea5df5 EI |
51 | }; |
52 | ||
53 | static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req) | |
54 | { | |
55 | int regnum; | |
56 | unsigned r = 0; | |
57 | ||
58 | regnum = req & 0x1f; | |
59 | ||
60 | switch (regnum) { | |
61 | case 1: | |
f6953f13 | 62 | /* MR1. */ |
a3ea5df5 EI |
63 | /* Speeds and modes. */ |
64 | r |= (1 << 13) | (1 << 14); | |
65 | r |= (1 << 11) | (1 << 12); | |
66 | r |= (1 << 5); /* Autoneg complete. */ | |
f6953f13 EI |
67 | r |= (1 << 3); /* Autoneg able. */ |
68 | r |= (1 << 2); /* Link. */ | |
a3ea5df5 | 69 | break; |
2e56350e EI |
70 | case 5: |
71 | /* Link partner ability. | |
72 | We are kind; always agree with whatever best mode | |
73 | the guest advertises. */ | |
74 | r = 1 << 14; /* Success. */ | |
75 | /* Copy advertised modes. */ | |
76 | r |= phy->regs[4] & (15 << 5); | |
77 | /* Autoneg support. */ | |
78 | r |= 1; | |
79 | break; | |
80 | case 18: | |
81 | { | |
82 | /* Diagnostics reg. */ | |
83 | int duplex = 0; | |
84 | int speed_100 = 0; | |
85 | ||
86 | /* Are we advertising 100 half or 100 duplex ? */ | |
c6488268 EI |
87 | speed_100 = !!(phy->regs[4] & ADVERTISE_100HALF); |
88 | speed_100 |= !!(phy->regs[4] & ADVERTISE_100FULL); | |
89 | ||
2e56350e | 90 | /* Are we advertising 10 duplex or 100 duplex ? */ |
c6488268 EI |
91 | duplex = !!(phy->regs[4] & ADVERTISE_100FULL); |
92 | duplex |= !!(phy->regs[4] & ADVERTISE_10FULL); | |
2e56350e EI |
93 | r = (speed_100 << 10) | (duplex << 11); |
94 | } | |
95 | break; | |
96 | ||
a3ea5df5 EI |
97 | default: |
98 | r = phy->regs[regnum]; | |
99 | break; | |
100 | } | |
2e56350e | 101 | D(printf("\n%s %x = reg[%d]\n", __func__, r, regnum)); |
a3ea5df5 EI |
102 | return r; |
103 | } | |
104 | ||
105 | static void | |
106 | tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data) | |
107 | { | |
108 | int regnum; | |
109 | ||
110 | regnum = req & 0x1f; | |
111 | D(printf("%s reg[%d] = %x\n", __func__, regnum, data)); | |
112 | switch (regnum) { | |
113 | default: | |
114 | phy->regs[regnum] = data; | |
115 | break; | |
116 | } | |
117 | } | |
118 | ||
119 | static void | |
120 | tdk_init(struct qemu_phy *phy) | |
121 | { | |
2e56350e EI |
122 | phy->regs[0] = 0x3100; |
123 | /* PHY Id. */ | |
124 | phy->regs[2] = 0x0300; | |
125 | phy->regs[3] = 0xe400; | |
126 | /* Autonegotiation advertisement reg. */ | |
127 | phy->regs[4] = 0x01E1; | |
128 | ||
a3ea5df5 EI |
129 | phy->read = tdk_read; |
130 | phy->write = tdk_write; | |
131 | } | |
132 | ||
133 | struct qemu_mdio | |
134 | { | |
f6953f13 | 135 | /* bus. */ |
a3ea5df5 EI |
136 | int mdc; |
137 | int mdio; | |
138 | ||
139 | /* decoder. */ | |
140 | enum { | |
141 | PREAMBLE, | |
142 | SOF, | |
143 | OPC, | |
144 | ADDR, | |
145 | REQ, | |
146 | TURNAROUND, | |
147 | DATA | |
148 | } state; | |
149 | unsigned int drive; | |
150 | ||
151 | unsigned int cnt; | |
152 | unsigned int addr; | |
153 | unsigned int opc; | |
154 | unsigned int req; | |
155 | unsigned int data; | |
156 | ||
157 | struct qemu_phy *devs[32]; | |
158 | }; | |
159 | ||
160 | static void | |
161 | mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr) | |
162 | { | |
163 | bus->devs[addr & 0x1f] = phy; | |
164 | } | |
165 | ||
d297f464 | 166 | #ifdef USE_THIS_DEAD_CODE |
a3ea5df5 EI |
167 | static void |
168 | mdio_detach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr) | |
169 | { | |
170 | bus->devs[addr & 0x1f] = NULL; | |
171 | } | |
d297f464 | 172 | #endif |
a3ea5df5 EI |
173 | |
174 | static void mdio_read_req(struct qemu_mdio *bus) | |
175 | { | |
176 | struct qemu_phy *phy; | |
177 | ||
178 | phy = bus->devs[bus->addr]; | |
179 | if (phy && phy->read) | |
180 | bus->data = phy->read(phy, bus->req); | |
181 | else | |
182 | bus->data = 0xffff; | |
183 | } | |
184 | ||
185 | static void mdio_write_req(struct qemu_mdio *bus) | |
186 | { | |
187 | struct qemu_phy *phy; | |
188 | ||
189 | phy = bus->devs[bus->addr]; | |
190 | if (phy && phy->write) | |
191 | phy->write(phy, bus->req, bus->data); | |
192 | } | |
193 | ||
194 | static void mdio_cycle(struct qemu_mdio *bus) | |
195 | { | |
196 | bus->cnt++; | |
197 | ||
198 | D(printf("mdc=%d mdio=%d state=%d cnt=%d drv=%d\n", | |
199 | bus->mdc, bus->mdio, bus->state, bus->cnt, bus->drive)); | |
200 | #if 0 | |
201 | if (bus->mdc) | |
202 | printf("%d", bus->mdio); | |
203 | #endif | |
204 | switch (bus->state) | |
205 | { | |
206 | case PREAMBLE: | |
207 | if (bus->mdc) { | |
208 | if (bus->cnt >= (32 * 2) && !bus->mdio) { | |
209 | bus->cnt = 0; | |
210 | bus->state = SOF; | |
211 | bus->data = 0; | |
212 | } | |
213 | } | |
214 | break; | |
215 | case SOF: | |
216 | if (bus->mdc) { | |
217 | if (bus->mdio != 1) | |
218 | printf("WARNING: no SOF\n"); | |
219 | if (bus->cnt == 1*2) { | |
220 | bus->cnt = 0; | |
221 | bus->opc = 0; | |
222 | bus->state = OPC; | |
223 | } | |
224 | } | |
225 | break; | |
226 | case OPC: | |
227 | if (bus->mdc) { | |
228 | bus->opc <<= 1; | |
229 | bus->opc |= bus->mdio & 1; | |
230 | if (bus->cnt == 2*2) { | |
231 | bus->cnt = 0; | |
232 | bus->addr = 0; | |
233 | bus->state = ADDR; | |
234 | } | |
235 | } | |
236 | break; | |
237 | case ADDR: | |
238 | if (bus->mdc) { | |
239 | bus->addr <<= 1; | |
240 | bus->addr |= bus->mdio & 1; | |
241 | ||
242 | if (bus->cnt == 5*2) { | |
243 | bus->cnt = 0; | |
244 | bus->req = 0; | |
245 | bus->state = REQ; | |
246 | } | |
247 | } | |
248 | break; | |
249 | case REQ: | |
250 | if (bus->mdc) { | |
251 | bus->req <<= 1; | |
252 | bus->req |= bus->mdio & 1; | |
253 | if (bus->cnt == 5*2) { | |
254 | bus->cnt = 0; | |
255 | bus->state = TURNAROUND; | |
256 | } | |
257 | } | |
258 | break; | |
259 | case TURNAROUND: | |
260 | if (bus->mdc && bus->cnt == 2*2) { | |
261 | bus->mdio = 0; | |
262 | bus->cnt = 0; | |
263 | ||
264 | if (bus->opc == 2) { | |
265 | bus->drive = 1; | |
266 | mdio_read_req(bus); | |
267 | bus->mdio = bus->data & 1; | |
268 | } | |
269 | bus->state = DATA; | |
270 | } | |
271 | break; | |
272 | case DATA: | |
273 | if (!bus->mdc) { | |
274 | if (bus->drive) { | |
2e56350e EI |
275 | bus->mdio = !!(bus->data & (1 << 15)); |
276 | bus->data <<= 1; | |
a3ea5df5 EI |
277 | } |
278 | } else { | |
279 | if (!bus->drive) { | |
280 | bus->data <<= 1; | |
281 | bus->data |= bus->mdio; | |
282 | } | |
283 | if (bus->cnt == 16 * 2) { | |
284 | bus->cnt = 0; | |
285 | bus->state = PREAMBLE; | |
2e56350e EI |
286 | if (!bus->drive) |
287 | mdio_write_req(bus); | |
288 | bus->drive = 0; | |
a3ea5df5 EI |
289 | } |
290 | } | |
291 | break; | |
292 | default: | |
293 | break; | |
294 | } | |
295 | } | |
296 | ||
2e56350e EI |
297 | /* ETRAX-FS Ethernet MAC block starts here. */ |
298 | ||
f6953f13 | 299 | #define RW_MA0_LO 0x00 |
35ef81d6 EI |
300 | #define RW_MA0_HI 0x01 |
301 | #define RW_MA1_LO 0x02 | |
302 | #define RW_MA1_HI 0x03 | |
303 | #define RW_GA_LO 0x04 | |
304 | #define RW_GA_HI 0x05 | |
305 | #define RW_GEN_CTRL 0x06 | |
306 | #define RW_REC_CTRL 0x07 | |
307 | #define RW_TR_CTRL 0x08 | |
308 | #define RW_CLR_ERR 0x09 | |
309 | #define RW_MGM_CTRL 0x0a | |
310 | #define R_STAT 0x0b | |
311 | #define FS_ETH_MAX_REGS 0x17 | |
a3ea5df5 EI |
312 | |
313 | struct fs_eth | |
314 | { | |
f6953f13 | 315 | CPUState *env; |
a3ea5df5 | 316 | qemu_irq *irq; |
a3ea5df5 | 317 | VLANClientState *vc; |
a3ea5df5 EI |
318 | int ethregs; |
319 | ||
f6953f13 EI |
320 | /* Two addrs in the filter. */ |
321 | uint8_t macaddr[2][6]; | |
a3ea5df5 EI |
322 | uint32_t regs[FS_ETH_MAX_REGS]; |
323 | ||
a3ea5df5 EI |
324 | struct etraxfs_dma_client *dma_out; |
325 | struct etraxfs_dma_client *dma_in; | |
326 | ||
327 | /* MDIO bus. */ | |
328 | struct qemu_mdio mdio_bus; | |
c6488268 EI |
329 | unsigned int phyaddr; |
330 | int duplex_mismatch; | |
331 | ||
f6953f13 | 332 | /* PHY. */ |
a3ea5df5 EI |
333 | struct qemu_phy phy; |
334 | }; | |
335 | ||
c6488268 EI |
336 | static void eth_validate_duplex(struct fs_eth *eth) |
337 | { | |
338 | struct qemu_phy *phy; | |
339 | unsigned int phy_duplex; | |
340 | unsigned int mac_duplex; | |
341 | int new_mm = 0; | |
342 | ||
343 | phy = eth->mdio_bus.devs[eth->phyaddr]; | |
344 | phy_duplex = !!(phy->read(phy, 18) & (1 << 11)); | |
345 | mac_duplex = !!(eth->regs[RW_REC_CTRL] & 128); | |
346 | ||
347 | if (mac_duplex != phy_duplex) | |
348 | new_mm = 1; | |
349 | ||
350 | if (eth->regs[RW_GEN_CTRL] & 1) { | |
351 | if (new_mm != eth->duplex_mismatch) { | |
352 | if (new_mm) | |
353 | printf("HW: WARNING " | |
354 | "ETH duplex mismatch MAC=%d PHY=%d\n", | |
355 | mac_duplex, phy_duplex); | |
356 | else | |
357 | printf("HW: ETH duplex ok.\n"); | |
358 | } | |
359 | eth->duplex_mismatch = new_mm; | |
360 | } | |
361 | } | |
362 | ||
a3ea5df5 EI |
363 | static uint32_t eth_readl (void *opaque, target_phys_addr_t addr) |
364 | { | |
f6953f13 | 365 | struct fs_eth *eth = opaque; |
f6953f13 | 366 | uint32_t r = 0; |
a3ea5df5 | 367 | |
35ef81d6 EI |
368 | addr >>= 2; |
369 | ||
f6953f13 | 370 | switch (addr) { |
a3ea5df5 | 371 | case R_STAT: |
a3ea5df5 EI |
372 | r = eth->mdio_bus.mdio & 1; |
373 | break; | |
f6953f13 | 374 | default: |
a3ea5df5 | 375 | r = eth->regs[addr]; |
35ef81d6 | 376 | D(printf ("%s %x\n", __func__, addr * 4)); |
f6953f13 EI |
377 | break; |
378 | } | |
379 | return r; | |
a3ea5df5 EI |
380 | } |
381 | ||
f6953f13 EI |
382 | static void eth_update_ma(struct fs_eth *eth, int ma) |
383 | { | |
384 | int reg; | |
385 | int i = 0; | |
386 | ||
387 | ma &= 1; | |
388 | ||
389 | reg = RW_MA0_LO; | |
390 | if (ma) | |
391 | reg = RW_MA1_LO; | |
392 | ||
393 | eth->macaddr[ma][i++] = eth->regs[reg]; | |
394 | eth->macaddr[ma][i++] = eth->regs[reg] >> 8; | |
395 | eth->macaddr[ma][i++] = eth->regs[reg] >> 16; | |
396 | eth->macaddr[ma][i++] = eth->regs[reg] >> 24; | |
397 | eth->macaddr[ma][i++] = eth->regs[reg + 4]; | |
398 | eth->macaddr[ma][i++] = eth->regs[reg + 4] >> 8; | |
399 | ||
400 | D(printf("set mac%d=%x.%x.%x.%x.%x.%x\n", ma, | |
401 | eth->macaddr[ma][0], eth->macaddr[ma][1], | |
402 | eth->macaddr[ma][2], eth->macaddr[ma][3], | |
403 | eth->macaddr[ma][4], eth->macaddr[ma][5])); | |
a3ea5df5 EI |
404 | } |
405 | ||
406 | static void | |
407 | eth_writel (void *opaque, target_phys_addr_t addr, uint32_t value) | |
408 | { | |
f6953f13 | 409 | struct fs_eth *eth = opaque; |
f6953f13 | 410 | |
35ef81d6 | 411 | addr >>= 2; |
f6953f13 EI |
412 | switch (addr) |
413 | { | |
414 | case RW_MA0_LO: | |
f6953f13 EI |
415 | case RW_MA0_HI: |
416 | eth->regs[addr] = value; | |
417 | eth_update_ma(eth, 0); | |
418 | break; | |
419 | case RW_MA1_LO: | |
f6953f13 EI |
420 | case RW_MA1_HI: |
421 | eth->regs[addr] = value; | |
422 | eth_update_ma(eth, 1); | |
423 | break; | |
a3ea5df5 | 424 | |
a3ea5df5 EI |
425 | case RW_MGM_CTRL: |
426 | /* Attach an MDIO/PHY abstraction. */ | |
427 | if (value & 2) | |
428 | eth->mdio_bus.mdio = value & 1; | |
c6488268 | 429 | if (eth->mdio_bus.mdc != (value & 4)) { |
a3ea5df5 | 430 | mdio_cycle(ð->mdio_bus); |
c6488268 EI |
431 | eth_validate_duplex(eth); |
432 | } | |
a3ea5df5 EI |
433 | eth->mdio_bus.mdc = !!(value & 4); |
434 | break; | |
435 | ||
c6488268 EI |
436 | case RW_REC_CTRL: |
437 | eth->regs[addr] = value; | |
438 | eth_validate_duplex(eth); | |
439 | break; | |
440 | ||
f6953f13 EI |
441 | default: |
442 | eth->regs[addr] = value; | |
9bcd77d6 EI |
443 | D(printf ("%s %x %x\n", |
444 | __func__, addr, value)); | |
f6953f13 EI |
445 | break; |
446 | } | |
447 | } | |
448 | ||
449 | /* The ETRAX FS has a groupt address table (GAT) which works like a k=1 bloom | |
450 | filter dropping group addresses we have not joined. The filter has 64 | |
451 | bits (m). The has function is a simple nible xor of the group addr. */ | |
452 | static int eth_match_groupaddr(struct fs_eth *eth, const unsigned char *sa) | |
453 | { | |
454 | unsigned int hsh; | |
455 | int m_individual = eth->regs[RW_REC_CTRL] & 4; | |
456 | int match; | |
457 | ||
458 | /* First bit on the wire of a MAC address signals multicast or | |
459 | physical address. */ | |
460 | if (!m_individual && !sa[0] & 1) | |
461 | return 0; | |
462 | ||
463 | /* Calculate the hash index for the GA registers. */ | |
464 | hsh = 0; | |
465 | hsh ^= (*sa) & 0x3f; | |
466 | hsh ^= ((*sa) >> 6) & 0x03; | |
467 | ++sa; | |
468 | hsh ^= ((*sa) << 2) & 0x03c; | |
469 | hsh ^= ((*sa) >> 4) & 0xf; | |
470 | ++sa; | |
471 | hsh ^= ((*sa) << 4) & 0x30; | |
472 | hsh ^= ((*sa) >> 2) & 0x3f; | |
473 | ++sa; | |
474 | hsh ^= (*sa) & 0x3f; | |
475 | hsh ^= ((*sa) >> 6) & 0x03; | |
476 | ++sa; | |
477 | hsh ^= ((*sa) << 2) & 0x03c; | |
478 | hsh ^= ((*sa) >> 4) & 0xf; | |
479 | ++sa; | |
480 | hsh ^= ((*sa) << 4) & 0x30; | |
481 | hsh ^= ((*sa) >> 2) & 0x3f; | |
482 | ||
483 | hsh &= 63; | |
484 | if (hsh > 31) | |
485 | match = eth->regs[RW_GA_HI] & (1 << (hsh - 32)); | |
486 | else | |
487 | match = eth->regs[RW_GA_LO] & (1 << hsh); | |
488 | D(printf("hsh=%x ga=%x.%x mtch=%d\n", hsh, | |
489 | eth->regs[RW_GA_HI], eth->regs[RW_GA_LO], match)); | |
490 | return match; | |
a3ea5df5 EI |
491 | } |
492 | ||
493 | static int eth_can_receive(void *opaque) | |
494 | { | |
aa25cf46 | 495 | return 1; |
a3ea5df5 EI |
496 | } |
497 | ||
498 | static void eth_receive(void *opaque, const uint8_t *buf, int size) | |
499 | { | |
f6953f13 | 500 | unsigned char sa_bcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
a3ea5df5 | 501 | struct fs_eth *eth = opaque; |
f6953f13 EI |
502 | int use_ma0 = eth->regs[RW_REC_CTRL] & 1; |
503 | int use_ma1 = eth->regs[RW_REC_CTRL] & 2; | |
504 | int r_bcast = eth->regs[RW_REC_CTRL] & 8; | |
505 | ||
506 | if (size < 12) | |
507 | return; | |
508 | ||
509 | D(printf("%x.%x.%x.%x.%x.%x ma=%d %d bc=%d\n", | |
510 | buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], | |
511 | use_ma0, use_ma1, r_bcast)); | |
512 | ||
513 | /* Does the frame get through the address filters? */ | |
514 | if ((!use_ma0 || memcmp(buf, eth->macaddr[0], 6)) | |
515 | && (!use_ma1 || memcmp(buf, eth->macaddr[1], 6)) | |
516 | && (!r_bcast || memcmp(buf, sa_bcast, 6)) | |
517 | && !eth_match_groupaddr(eth, buf)) | |
518 | return; | |
519 | ||
aa25cf46 EI |
520 | /* FIXME: Find another way to pass on the fake csum. */ |
521 | etraxfs_dmac_input(eth->dma_in, (void *)buf, size + 4, 1); | |
a3ea5df5 EI |
522 | } |
523 | ||
524 | static int eth_tx_push(void *opaque, unsigned char *buf, int len) | |
525 | { | |
526 | struct fs_eth *eth = opaque; | |
527 | ||
528 | D(printf("%s buf=%p len=%d\n", __func__, buf, len)); | |
529 | qemu_send_packet(eth->vc, buf, len); | |
530 | return len; | |
531 | } | |
532 | ||
533 | static CPUReadMemoryFunc *eth_read[] = { | |
35ef81d6 | 534 | NULL, NULL, |
2e56350e | 535 | ð_readl, |
a3ea5df5 EI |
536 | }; |
537 | ||
538 | static CPUWriteMemoryFunc *eth_write[] = { | |
35ef81d6 | 539 | NULL, NULL, |
2e56350e | 540 | ð_writel, |
a3ea5df5 EI |
541 | }; |
542 | ||
543 | void *etraxfs_eth_init(NICInfo *nd, CPUState *env, | |
544 | qemu_irq *irq, target_phys_addr_t base) | |
545 | { | |
546 | struct etraxfs_dma_client *dma = NULL; | |
547 | struct fs_eth *eth = NULL; | |
548 | ||
549 | dma = qemu_mallocz(sizeof *dma * 2); | |
550 | if (!dma) | |
551 | return NULL; | |
552 | ||
553 | eth = qemu_mallocz(sizeof *eth); | |
554 | if (!eth) | |
555 | goto err; | |
556 | ||
557 | dma[0].client.push = eth_tx_push; | |
558 | dma[0].client.opaque = eth; | |
559 | dma[1].client.opaque = eth; | |
aa25cf46 | 560 | dma[1].client.pull = NULL; |
a3ea5df5 EI |
561 | |
562 | eth->env = env; | |
a3ea5df5 EI |
563 | eth->irq = irq; |
564 | eth->dma_out = dma; | |
565 | eth->dma_in = dma + 1; | |
a3ea5df5 EI |
566 | |
567 | /* Connect the phy. */ | |
c6488268 | 568 | eth->phyaddr = 1; |
a3ea5df5 | 569 | tdk_init(ð->phy); |
c6488268 | 570 | mdio_attach(ð->mdio_bus, ð->phy, eth->phyaddr); |
a3ea5df5 EI |
571 | |
572 | eth->ethregs = cpu_register_io_memory(0, eth_read, eth_write, eth); | |
573 | cpu_register_physical_memory (base, 0x5c, eth->ethregs); | |
574 | ||
7a9f6e4a | 575 | eth->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name, |
a3ea5df5 EI |
576 | eth_receive, eth_can_receive, eth); |
577 | ||
578 | return dma; | |
579 | err: | |
580 | qemu_free(eth); | |
581 | qemu_free(dma); | |
582 | return NULL; | |
583 | } |