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663e8e51 TS |
1 | /* |
2 | * QEMU i8255x (PRO100) emulation | |
3 | * | |
4 | * Copyright (c) 2006-2007 Stefan Weil | |
5 | * | |
6 | * Portions of the code are copies from grub / etherboot eepro100.c | |
7 | * and linux e100.c. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | * | |
23 | * Tested features (i82559): | |
24 | * PXE boot (i386) no valid link | |
25 | * Linux networking (i386) ok | |
26 | * | |
27 | * Untested: | |
28 | * non-i386 platforms | |
29 | * Windows networking | |
30 | * | |
31 | * References: | |
32 | * | |
33 | * Intel 8255x 10/100 Mbps Ethernet Controller Family | |
34 | * Open Source Software Developer Manual | |
35 | */ | |
36 | ||
37 | #if defined(TARGET_I386) | |
38 | # warning "PXE boot still not working!" | |
39 | #endif | |
40 | ||
41 | #include <assert.h> | |
42 | #include <stddef.h> /* offsetof */ | |
43 | #include "vl.h" | |
44 | #include "eeprom93xx.h" | |
45 | ||
46 | /* Common declarations for all PCI devices. */ | |
47 | ||
48 | #define PCI_VENDOR_ID 0x00 /* 16 bits */ | |
49 | #define PCI_DEVICE_ID 0x02 /* 16 bits */ | |
50 | #define PCI_COMMAND 0x04 /* 16 bits */ | |
51 | #define PCI_STATUS 0x06 /* 16 bits */ | |
52 | ||
53 | #define PCI_REVISION_ID 0x08 /* 8 bits */ | |
54 | #define PCI_CLASS_CODE 0x0b /* 8 bits */ | |
55 | #define PCI_SUBCLASS_CODE 0x0a /* 8 bits */ | |
56 | #define PCI_HEADER_TYPE 0x0e /* 8 bits */ | |
57 | ||
58 | #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */ | |
59 | #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits */ | |
60 | #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits */ | |
61 | #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */ | |
62 | #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */ | |
63 | #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */ | |
64 | ||
65 | #define PCI_CONFIG_8(offset, value) \ | |
66 | (pci_conf[offset] = (value)) | |
67 | #define PCI_CONFIG_16(offset, value) \ | |
68 | (*(uint16_t *)&pci_conf[offset] = cpu_to_le16(value)) | |
69 | #define PCI_CONFIG_32(offset, value) \ | |
70 | (*(uint32_t *)&pci_conf[offset] = cpu_to_le32(value)) | |
71 | ||
72 | #define KiB 1024 | |
73 | ||
74 | /* debug EEPRO100 card */ | |
75 | //~ #define DEBUG_EEPRO100 | |
76 | ||
77 | #ifdef DEBUG_EEPRO100 | |
78 | #define logout(fmt, args...) fprintf(stderr, "EE100\t%-24s" fmt, __func__, ##args) | |
79 | #else | |
80 | #define logout(fmt, args...) ((void)0) | |
81 | #endif | |
82 | ||
83 | /* Set flags to 0 to disable debug output. */ | |
84 | #define MDI 0 | |
85 | ||
86 | #define TRACE(flag, command) ((flag) ? (command) : (void)0) | |
87 | ||
88 | #define missing(text) assert(!"feature is missing in this emulation: " text) | |
89 | ||
90 | #define MAX_ETH_FRAME_SIZE 1514 | |
91 | ||
92 | /* This driver supports several different devices which are declared here. */ | |
93 | #define i82551 0x82551 | |
94 | #define i82557B 0x82557b | |
95 | #define i82557C 0x82557c | |
96 | #define i82558B 0x82558b | |
97 | #define i82559C 0x82559c | |
98 | #define i82559ER 0x82559e | |
99 | #define i82562 0x82562 | |
100 | ||
101 | #define EEPROM_SIZE 64 | |
102 | ||
103 | #define PCI_MEM_SIZE (4 * KiB) | |
104 | #define PCI_IO_SIZE 64 | |
105 | #define PCI_FLASH_SIZE (128 * KiB) | |
106 | ||
107 | #define BIT(n) (1 << (n)) | |
108 | #define BITS(n, m) (((0xffffffffU << (31 - n)) >> (31 - n + m)) << m) | |
109 | ||
110 | /* The SCB accepts the following controls for the Tx and Rx units: */ | |
111 | #define CU_NOP 0x0000 /* No operation. */ | |
112 | #define CU_START 0x0010 /* CU start. */ | |
113 | #define CU_RESUME 0x0020 /* CU resume. */ | |
114 | #define CU_STATSADDR 0x0040 /* Load dump counters address. */ | |
115 | #define CU_SHOWSTATS 0x0050 /* Dump statistical counters. */ | |
116 | #define CU_CMD_BASE 0x0060 /* Load CU base address. */ | |
117 | #define CU_DUMPSTATS 0x0070 /* Dump and reset statistical counters. */ | |
118 | #define CU_SRESUME 0x00a0 /* CU static resume. */ | |
119 | ||
120 | #define RU_NOP 0x0000 | |
121 | #define RX_START 0x0001 | |
122 | #define RX_RESUME 0x0002 | |
123 | #define RX_ABORT 0x0004 | |
124 | #define RX_ADDR_LOAD 0x0006 | |
125 | #define RX_RESUMENR 0x0007 | |
126 | #define INT_MASK 0x0100 | |
127 | #define DRVR_INT 0x0200 /* Driver generated interrupt. */ | |
128 | ||
129 | typedef unsigned char bool; | |
130 | ||
131 | /* Offsets to the various registers. | |
132 | All accesses need not be longword aligned. */ | |
133 | enum speedo_offsets { | |
134 | SCBStatus = 0, | |
135 | SCBAck = 1, | |
136 | SCBCmd = 2, /* Rx/Command Unit command and status. */ | |
137 | SCBIntmask = 3, | |
138 | SCBPointer = 4, /* General purpose pointer. */ | |
139 | SCBPort = 8, /* Misc. commands and operands. */ | |
140 | SCBflash = 12, SCBeeprom = 14, /* EEPROM and flash memory control. */ | |
141 | SCBCtrlMDI = 16, /* MDI interface control. */ | |
142 | SCBEarlyRx = 20, /* Early receive byte count. */ | |
3257d2b6 | 143 | SCBFlow = 24, |
663e8e51 TS |
144 | }; |
145 | ||
146 | /* A speedo3 transmit buffer descriptor with two buffers... */ | |
147 | typedef struct { | |
148 | uint16_t status; | |
149 | uint16_t command; | |
150 | uint32_t link; /* void * */ | |
151 | uint32_t tx_desc_addr; /* transmit buffer decsriptor array address. */ | |
152 | uint16_t tcb_bytes; /* transmit command block byte count (in lower 14 bits */ | |
153 | uint8_t tx_threshold; /* transmit threshold */ | |
154 | uint8_t tbd_count; /* TBD number */ | |
155 | //~ /* This constitutes two "TBD" entries: hdr and data */ | |
156 | //~ uint32_t tx_buf_addr0; /* void *, header of frame to be transmitted. */ | |
157 | //~ int32_t tx_buf_size0; /* Length of Tx hdr. */ | |
158 | //~ uint32_t tx_buf_addr1; /* void *, data to be transmitted. */ | |
159 | //~ int32_t tx_buf_size1; /* Length of Tx data. */ | |
160 | } eepro100_tx_t; | |
161 | ||
162 | /* Receive frame descriptor. */ | |
163 | typedef struct { | |
164 | int16_t status; | |
165 | uint16_t command; | |
166 | uint32_t link; /* struct RxFD * */ | |
167 | uint32_t rx_buf_addr; /* void * */ | |
168 | uint16_t count; | |
169 | uint16_t size; | |
170 | char packet[MAX_ETH_FRAME_SIZE + 4]; | |
171 | } eepro100_rx_t; | |
172 | ||
173 | typedef struct { | |
174 | uint32_t tx_good_frames, tx_max_collisions, tx_late_collisions, | |
175 | tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions, | |
176 | tx_multiple_collisions, tx_total_collisions; | |
177 | uint32_t rx_good_frames, rx_crc_errors, rx_alignment_errors, | |
178 | rx_resource_errors, rx_overrun_errors, rx_cdt_errors, | |
179 | rx_short_frame_errors; | |
180 | uint32_t fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported; | |
181 | uint16_t xmt_tco_frames, rcv_tco_frames; | |
182 | uint32_t complete; | |
183 | } eepro100_stats_t; | |
184 | ||
185 | typedef enum { | |
186 | cu_idle = 0, | |
187 | cu_suspended = 1, | |
188 | cu_active = 2, | |
189 | cu_lpq_active = 2, | |
190 | cu_hqp_active = 3 | |
191 | } cu_state_t; | |
192 | ||
193 | typedef enum { | |
194 | ru_idle = 0, | |
195 | ru_suspended = 1, | |
196 | ru_no_resources = 2, | |
197 | ru_ready = 4 | |
198 | } ru_state_t; | |
199 | ||
200 | #if defined(__BIG_ENDIAN_BITFIELD) | |
201 | #define X(a,b) b,a | |
202 | #else | |
203 | #define X(a,b) a,b | |
204 | #endif | |
205 | ||
206 | typedef struct { | |
207 | #if 1 | |
208 | uint8_t cmd; | |
209 | uint32_t start; | |
210 | uint32_t stop; | |
211 | uint8_t boundary; | |
212 | uint8_t tsr; | |
213 | uint8_t tpsr; | |
214 | uint16_t tcnt; | |
215 | uint16_t rcnt; | |
216 | uint32_t rsar; | |
217 | uint8_t rsr; | |
218 | uint8_t rxcr; | |
219 | uint8_t isr; | |
220 | uint8_t dcfg; | |
221 | uint8_t imr; | |
222 | uint8_t phys[6]; /* mac address */ | |
223 | uint8_t curpag; | |
224 | uint8_t mult[8]; /* multicast mask array */ | |
225 | int mmio_index; | |
226 | PCIDevice *pci_dev; | |
227 | VLANClientState *vc; | |
228 | #endif | |
229 | uint8_t scb_stat; /* SCB stat/ack byte */ | |
230 | uint8_t int_stat; /* PCI interrupt status */ | |
231 | uint32_t region[3]; /* PCI region addresses */ | |
232 | uint8_t macaddr[6]; | |
233 | uint32_t statcounter[19]; | |
234 | uint16_t mdimem[32]; | |
235 | eeprom_t *eeprom; | |
236 | uint32_t device; /* device variant */ | |
237 | uint32_t pointer; | |
238 | /* (cu_base + cu_offset) address the next command block in the command block list. */ | |
239 | uint32_t cu_base; /* CU base address */ | |
240 | uint32_t cu_offset; /* CU address offset */ | |
241 | /* (ru_base + ru_offset) address the RFD in the Receive Frame Area. */ | |
242 | uint32_t ru_base; /* RU base address */ | |
243 | uint32_t ru_offset; /* RU address offset */ | |
244 | uint32_t statsaddr; /* pointer to eepro100_stats_t */ | |
245 | eepro100_stats_t statistics; /* statistical counters */ | |
246 | #if 0 | |
247 | uint16_t status; | |
248 | #endif | |
249 | ||
250 | /* Configuration bytes. */ | |
251 | uint8_t configuration[22]; | |
252 | ||
253 | /* Data in mem is always in the byte order of the controller (le). */ | |
254 | uint8_t mem[PCI_MEM_SIZE]; | |
255 | } EEPRO100State; | |
256 | ||
257 | /* Default values for MDI (PHY) registers */ | |
258 | static const uint16_t eepro100_mdi_default[] = { | |
259 | /* MDI Registers 0 - 6, 7 */ | |
260 | 0x3000, 0x780d, 0x02a8, 0x0154, 0x05e1, 0x0000, 0x0000, 0x0000, | |
261 | /* MDI Registers 8 - 15 */ | |
262 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
263 | /* MDI Registers 16 - 31 */ | |
264 | 0x0003, 0x0000, 0x0001, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
265 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
266 | }; | |
267 | ||
268 | /* Readonly mask for MDI (PHY) registers */ | |
269 | static const uint16_t eepro100_mdi_mask[] = { | |
270 | 0x0000, 0xffff, 0xffff, 0xffff, 0xc01f, 0xffff, 0xffff, 0x0000, | |
271 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
272 | 0x0fff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, | |
273 | 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
274 | }; | |
275 | ||
276 | #define POLYNOMIAL 0x04c11db6 | |
277 | ||
278 | /* From FreeBSD */ | |
279 | /* XXX: optimize */ | |
280 | static int compute_mcast_idx(const uint8_t * ep) | |
281 | { | |
282 | uint32_t crc; | |
283 | int carry, i, j; | |
284 | uint8_t b; | |
285 | ||
286 | crc = 0xffffffff; | |
287 | for (i = 0; i < 6; i++) { | |
288 | b = *ep++; | |
289 | for (j = 0; j < 8; j++) { | |
290 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
291 | crc <<= 1; | |
292 | b >>= 1; | |
293 | if (carry) | |
294 | crc = ((crc ^ POLYNOMIAL) | carry); | |
295 | } | |
296 | } | |
297 | return (crc >> 26); | |
298 | } | |
299 | ||
300 | #if defined(DEBUG_EEPRO100) | |
301 | static const char *nic_dump(const uint8_t * buf, unsigned size) | |
302 | { | |
303 | static char dump[3 * 16 + 1]; | |
304 | char *p = &dump[0]; | |
305 | if (size > 16) | |
306 | size = 16; | |
307 | while (size-- > 0) { | |
308 | p += sprintf(p, " %02x", *buf++); | |
309 | } | |
310 | return dump; | |
311 | } | |
312 | #endif /* DEBUG_EEPRO100 */ | |
313 | ||
314 | enum scb_stat_ack { | |
315 | stat_ack_not_ours = 0x00, | |
316 | stat_ack_sw_gen = 0x04, | |
317 | stat_ack_rnr = 0x10, | |
318 | stat_ack_cu_idle = 0x20, | |
319 | stat_ack_frame_rx = 0x40, | |
320 | stat_ack_cu_cmd_done = 0x80, | |
321 | stat_ack_not_present = 0xFF, | |
322 | stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx), | |
323 | stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done), | |
324 | }; | |
325 | ||
326 | static void disable_interrupt(EEPRO100State * s) | |
327 | { | |
328 | if (s->int_stat) { | |
329 | logout("interrupt disabled\n"); | |
d537cf6c | 330 | qemu_irq_lower(s->pci_dev->irq[0]); |
663e8e51 TS |
331 | s->int_stat = 0; |
332 | } | |
333 | } | |
334 | ||
335 | static void enable_interrupt(EEPRO100State * s) | |
336 | { | |
337 | if (!s->int_stat) { | |
338 | logout("interrupt enabled\n"); | |
d537cf6c | 339 | qemu_irq_raise(s->pci_dev->irq[0]); |
663e8e51 TS |
340 | s->int_stat = 1; |
341 | } | |
342 | } | |
343 | ||
344 | static void eepro100_acknowledge(EEPRO100State * s) | |
345 | { | |
346 | s->scb_stat &= ~s->mem[SCBAck]; | |
347 | s->mem[SCBAck] = s->scb_stat; | |
348 | if (s->scb_stat == 0) { | |
349 | disable_interrupt(s); | |
350 | } | |
351 | } | |
352 | ||
353 | static void eepro100_interrupt(EEPRO100State * s, uint8_t stat) | |
354 | { | |
355 | uint8_t mask = ~s->mem[SCBIntmask]; | |
356 | s->mem[SCBAck] |= stat; | |
357 | stat = s->scb_stat = s->mem[SCBAck]; | |
358 | stat &= (mask | 0x0f); | |
359 | //~ stat &= (~s->mem[SCBIntmask] | 0x0xf); | |
360 | if (stat && (mask & 0x01)) { | |
361 | /* SCB mask and SCB Bit M do not disable interrupt. */ | |
362 | enable_interrupt(s); | |
363 | } else if (s->int_stat) { | |
364 | disable_interrupt(s); | |
365 | } | |
366 | } | |
367 | ||
368 | static void eepro100_cx_interrupt(EEPRO100State * s) | |
369 | { | |
370 | /* CU completed action command. */ | |
371 | /* Transmit not ok (82557 only, not in emulation). */ | |
372 | eepro100_interrupt(s, 0x80); | |
373 | } | |
374 | ||
375 | static void eepro100_cna_interrupt(EEPRO100State * s) | |
376 | { | |
377 | /* CU left the active state. */ | |
378 | eepro100_interrupt(s, 0x20); | |
379 | } | |
380 | ||
381 | static void eepro100_fr_interrupt(EEPRO100State * s) | |
382 | { | |
383 | /* RU received a complete frame. */ | |
384 | eepro100_interrupt(s, 0x40); | |
385 | } | |
386 | ||
387 | #if 0 | |
388 | static void eepro100_rnr_interrupt(EEPRO100State * s) | |
389 | { | |
390 | /* RU is not ready. */ | |
391 | eepro100_interrupt(s, 0x10); | |
392 | } | |
393 | #endif | |
394 | ||
395 | static void eepro100_mdi_interrupt(EEPRO100State * s) | |
396 | { | |
397 | /* MDI completed read or write cycle. */ | |
398 | eepro100_interrupt(s, 0x08); | |
399 | } | |
400 | ||
401 | static void eepro100_swi_interrupt(EEPRO100State * s) | |
402 | { | |
403 | /* Software has requested an interrupt. */ | |
404 | eepro100_interrupt(s, 0x04); | |
405 | } | |
406 | ||
407 | #if 0 | |
408 | static void eepro100_fcp_interrupt(EEPRO100State * s) | |
409 | { | |
410 | /* Flow control pause interrupt (82558 and later). */ | |
411 | eepro100_interrupt(s, 0x01); | |
412 | } | |
413 | #endif | |
414 | ||
415 | static void pci_reset(EEPRO100State * s) | |
416 | { | |
417 | uint32_t device = s->device; | |
418 | uint8_t *pci_conf = s->pci_dev->config; | |
419 | ||
420 | logout("%p\n", s); | |
421 | ||
422 | /* PCI Vendor ID */ | |
423 | PCI_CONFIG_16(PCI_VENDOR_ID, 0x8086); | |
424 | /* PCI Device ID */ | |
425 | PCI_CONFIG_16(PCI_DEVICE_ID, 0x1209); | |
426 | /* PCI Command */ | |
427 | PCI_CONFIG_16(PCI_COMMAND, 0x0000); | |
428 | /* PCI Status */ | |
429 | PCI_CONFIG_16(PCI_STATUS, 0x2800); | |
430 | /* PCI Revision ID */ | |
431 | PCI_CONFIG_8(PCI_REVISION_ID, 0x08); | |
432 | /* PCI Class Code */ | |
433 | PCI_CONFIG_8(0x09, 0x00); | |
434 | PCI_CONFIG_8(PCI_SUBCLASS_CODE, 0x00); // ethernet network controller | |
435 | PCI_CONFIG_8(PCI_CLASS_CODE, 0x02); // network controller | |
436 | /* PCI Cache Line Size */ | |
437 | /* check cache line size!!! */ | |
438 | //~ PCI_CONFIG_8(0x0c, 0x00); | |
439 | /* PCI Latency Timer */ | |
440 | PCI_CONFIG_8(0x0d, 0x20); // latency timer = 32 clocks | |
441 | /* PCI Header Type */ | |
442 | /* BIST (built-in self test) */ | |
443 | #if defined(TARGET_I386) | |
444 | // !!! workaround for buggy bios | |
445 | //~ #define PCI_ADDRESS_SPACE_MEM_PREFETCH 0 | |
446 | #endif | |
447 | #if 0 | |
448 | /* PCI Base Address Registers */ | |
449 | /* CSR Memory Mapped Base Address */ | |
450 | PCI_CONFIG_32(PCI_BASE_ADDRESS_0, | |
451 | PCI_ADDRESS_SPACE_MEM | PCI_ADDRESS_SPACE_MEM_PREFETCH); | |
452 | /* CSR I/O Mapped Base Address */ | |
453 | PCI_CONFIG_32(PCI_BASE_ADDRESS_1, PCI_ADDRESS_SPACE_IO); | |
454 | #if 0 | |
455 | /* Flash Memory Mapped Base Address */ | |
456 | PCI_CONFIG_32(PCI_BASE_ADDRESS_2, 0xfffe0000 | PCI_ADDRESS_SPACE_MEM); | |
457 | #endif | |
458 | #endif | |
459 | /* Expansion ROM Base Address (depends on boot disable!!!) */ | |
460 | PCI_CONFIG_32(0x30, 0x00000000); | |
461 | /* Capability Pointer */ | |
462 | PCI_CONFIG_8(0x34, 0xdc); | |
463 | /* Interrupt Pin */ | |
464 | PCI_CONFIG_8(0x3d, 1); // interrupt pin 0 | |
465 | /* Minimum Grant */ | |
466 | PCI_CONFIG_8(0x3e, 0x08); | |
467 | /* Maximum Latency */ | |
468 | PCI_CONFIG_8(0x3f, 0x18); | |
469 | /* Power Management Capabilities / Next Item Pointer / Capability ID */ | |
470 | PCI_CONFIG_32(0xdc, 0x7e210001); | |
471 | ||
472 | switch (device) { | |
473 | case i82551: | |
474 | //~ PCI_CONFIG_16(PCI_DEVICE_ID, 0x1209); | |
475 | PCI_CONFIG_8(PCI_REVISION_ID, 0x0f); | |
476 | break; | |
477 | case i82557B: | |
478 | PCI_CONFIG_16(PCI_DEVICE_ID, 0x1229); | |
479 | PCI_CONFIG_8(PCI_REVISION_ID, 0x02); | |
480 | break; | |
481 | case i82557C: | |
482 | PCI_CONFIG_16(PCI_DEVICE_ID, 0x1229); | |
483 | PCI_CONFIG_8(PCI_REVISION_ID, 0x03); | |
484 | break; | |
485 | case i82558B: | |
486 | PCI_CONFIG_16(PCI_DEVICE_ID, 0x1229); | |
487 | PCI_CONFIG_16(PCI_STATUS, 0x2810); | |
488 | PCI_CONFIG_8(PCI_REVISION_ID, 0x05); | |
489 | break; | |
490 | case i82559C: | |
491 | PCI_CONFIG_16(PCI_DEVICE_ID, 0x1229); | |
492 | PCI_CONFIG_16(PCI_STATUS, 0x2810); | |
493 | //~ PCI_CONFIG_8(PCI_REVISION_ID, 0x08); | |
494 | break; | |
495 | case i82559ER: | |
496 | //~ PCI_CONFIG_16(PCI_DEVICE_ID, 0x1209); | |
497 | PCI_CONFIG_16(PCI_STATUS, 0x2810); | |
498 | PCI_CONFIG_8(PCI_REVISION_ID, 0x09); | |
499 | break; | |
500 | //~ PCI_CONFIG_16(PCI_DEVICE_ID, 0x1029); | |
501 | //~ PCI_CONFIG_16(PCI_DEVICE_ID, 0x1030); /* 82559 InBusiness 10/100 */ | |
502 | default: | |
503 | logout("Device %X is undefined!\n", device); | |
504 | } | |
505 | ||
506 | if (device == i82557C || device == i82558B || device == i82559C) { | |
507 | logout("Get device id and revision from EEPROM!!!\n"); | |
508 | } | |
509 | } | |
510 | ||
511 | static void nic_selective_reset(EEPRO100State * s) | |
512 | { | |
513 | size_t i; | |
514 | uint16_t *eeprom_contents = eeprom93xx_data(s->eeprom); | |
515 | //~ eeprom93xx_reset(s->eeprom); | |
516 | memcpy(eeprom_contents, s->macaddr, 6); | |
517 | eeprom_contents[0xa] = 0x4000; | |
518 | uint16_t sum = 0; | |
519 | for (i = 0; i < EEPROM_SIZE - 1; i++) { | |
520 | sum += eeprom_contents[i]; | |
521 | } | |
522 | eeprom_contents[EEPROM_SIZE - 1] = 0xbaba - sum; | |
523 | ||
524 | memset(s->mem, 0, sizeof(s->mem)); | |
525 | uint32_t val = BIT(21); | |
526 | memcpy(&s->mem[SCBCtrlMDI], &val, sizeof(val)); | |
527 | ||
528 | assert(sizeof(s->mdimem) == sizeof(eepro100_mdi_default)); | |
529 | memcpy(&s->mdimem[0], &eepro100_mdi_default[0], sizeof(s->mdimem)); | |
530 | } | |
531 | ||
532 | static void nic_reset(void *opaque) | |
533 | { | |
534 | EEPRO100State *s = (EEPRO100State *) opaque; | |
535 | logout("%p\n", s); | |
536 | static int first; | |
537 | if (!first) { | |
538 | first = 1; | |
539 | } | |
540 | nic_selective_reset(s); | |
541 | } | |
542 | ||
543 | #if defined(DEBUG_EEPRO100) | |
544 | static const char *reg[PCI_IO_SIZE / 4] = { | |
545 | "Command/Status", | |
546 | "General Pointer", | |
547 | "Port", | |
548 | "EEPROM/Flash Control", | |
549 | "MDI Control", | |
550 | "Receive DMA Byte Count", | |
551 | "Flow control register", | |
552 | "General Status/Control" | |
553 | }; | |
554 | ||
555 | static char *regname(uint32_t addr) | |
556 | { | |
557 | static char buf[16]; | |
558 | if (addr < PCI_IO_SIZE) { | |
559 | const char *r = reg[addr / 4]; | |
560 | if (r != 0) { | |
561 | sprintf(buf, "%s+%u", r, addr % 4); | |
562 | } else { | |
563 | sprintf(buf, "0x%02x", addr); | |
564 | } | |
565 | } else { | |
566 | sprintf(buf, "??? 0x%08x", addr); | |
567 | } | |
568 | return buf; | |
569 | } | |
570 | #endif /* DEBUG_EEPRO100 */ | |
571 | ||
572 | #if 0 | |
573 | static uint16_t eepro100_read_status(EEPRO100State * s) | |
574 | { | |
575 | uint16_t val = s->status; | |
576 | logout("val=0x%04x\n", val); | |
577 | return val; | |
578 | } | |
579 | ||
580 | static void eepro100_write_status(EEPRO100State * s, uint16_t val) | |
581 | { | |
582 | logout("val=0x%04x\n", val); | |
583 | s->status = val; | |
584 | } | |
585 | #endif | |
586 | ||
587 | /***************************************************************************** | |
588 | * | |
589 | * Command emulation. | |
590 | * | |
591 | ****************************************************************************/ | |
592 | ||
593 | #if 0 | |
594 | static uint16_t eepro100_read_command(EEPRO100State * s) | |
595 | { | |
596 | uint16_t val = 0xffff; | |
597 | //~ logout("val=0x%04x\n", val); | |
598 | return val; | |
599 | } | |
600 | #endif | |
601 | ||
602 | /* Commands that can be put in a command list entry. */ | |
603 | enum commands { | |
604 | CmdNOp = 0, | |
605 | CmdIASetup = 1, | |
606 | CmdConfigure = 2, | |
607 | CmdMulticastList = 3, | |
608 | CmdTx = 4, | |
609 | CmdTDR = 5, /* load microcode */ | |
610 | CmdDump = 6, | |
611 | CmdDiagnose = 7, | |
612 | ||
613 | /* And some extra flags: */ | |
614 | CmdSuspend = 0x4000, /* Suspend after completion. */ | |
615 | CmdIntr = 0x2000, /* Interrupt after completion. */ | |
616 | CmdTxFlex = 0x0008, /* Use "Flexible mode" for CmdTx command. */ | |
617 | }; | |
618 | ||
619 | static cu_state_t get_cu_state(EEPRO100State * s) | |
620 | { | |
621 | return ((s->mem[SCBStatus] >> 6) & 0x03); | |
622 | } | |
623 | ||
624 | static void set_cu_state(EEPRO100State * s, cu_state_t state) | |
625 | { | |
626 | s->mem[SCBStatus] = (s->mem[SCBStatus] & 0x3f) + (state << 6); | |
627 | } | |
628 | ||
629 | static ru_state_t get_ru_state(EEPRO100State * s) | |
630 | { | |
631 | return ((s->mem[SCBStatus] >> 2) & 0x0f); | |
632 | } | |
633 | ||
634 | static void set_ru_state(EEPRO100State * s, ru_state_t state) | |
635 | { | |
636 | s->mem[SCBStatus] = (s->mem[SCBStatus] & 0xc3) + (state << 2); | |
637 | } | |
638 | ||
639 | static void dump_statistics(EEPRO100State * s) | |
640 | { | |
641 | /* Dump statistical data. Most data is never changed by the emulation | |
642 | * and always 0, so we first just copy the whole block and then those | |
643 | * values which really matter. | |
644 | * Number of data should check configuration!!! | |
645 | */ | |
646 | cpu_physical_memory_write(s->statsaddr, (uint8_t *) & s->statistics, 64); | |
647 | stl_phys(s->statsaddr + 0, s->statistics.tx_good_frames); | |
648 | stl_phys(s->statsaddr + 36, s->statistics.rx_good_frames); | |
649 | stl_phys(s->statsaddr + 48, s->statistics.rx_resource_errors); | |
650 | stl_phys(s->statsaddr + 60, s->statistics.rx_short_frame_errors); | |
651 | //~ stw_phys(s->statsaddr + 76, s->statistics.xmt_tco_frames); | |
652 | //~ stw_phys(s->statsaddr + 78, s->statistics.rcv_tco_frames); | |
653 | //~ missing("CU dump statistical counters"); | |
654 | } | |
655 | ||
656 | static void eepro100_cu_command(EEPRO100State * s, uint8_t val) | |
657 | { | |
658 | eepro100_tx_t tx; | |
659 | uint32_t cb_address; | |
660 | switch (val) { | |
661 | case CU_NOP: | |
662 | /* No operation. */ | |
663 | break; | |
664 | case CU_START: | |
665 | if (get_cu_state(s) != cu_idle) { | |
666 | /* Intel documentation says that CU must be idle for the CU | |
667 | * start command. Intel driver for Linux also starts the CU | |
668 | * from suspended state. */ | |
669 | logout("CU state is %u, should be %u\n", get_cu_state(s), cu_idle); | |
670 | //~ assert(!"wrong CU state"); | |
671 | } | |
672 | set_cu_state(s, cu_active); | |
673 | s->cu_offset = s->pointer; | |
674 | next_command: | |
675 | cb_address = s->cu_base + s->cu_offset; | |
676 | cpu_physical_memory_read(cb_address, (uint8_t *) & tx, sizeof(tx)); | |
677 | uint16_t status = le16_to_cpu(tx.status); | |
678 | uint16_t command = le16_to_cpu(tx.command); | |
679 | logout | |
680 | ("val=0x%02x (cu start), status=0x%04x, command=0x%04x, link=0x%08x\n", | |
681 | val, status, command, tx.link); | |
682 | bool bit_el = ((command & 0x8000) != 0); | |
683 | bool bit_s = ((command & 0x4000) != 0); | |
684 | bool bit_i = ((command & 0x2000) != 0); | |
685 | bool bit_nc = ((command & 0x0010) != 0); | |
686 | //~ bool bit_sf = ((command & 0x0008) != 0); | |
687 | uint16_t cmd = command & 0x0007; | |
688 | s->cu_offset = le32_to_cpu(tx.link); | |
689 | switch (cmd) { | |
690 | case CmdNOp: | |
691 | /* Do nothing. */ | |
692 | break; | |
693 | case CmdIASetup: | |
694 | cpu_physical_memory_read(cb_address + 8, &s->macaddr[0], 6); | |
695 | logout("macaddr: %s\n", nic_dump(&s->macaddr[0], 6)); | |
696 | break; | |
697 | case CmdConfigure: | |
698 | cpu_physical_memory_read(cb_address + 8, &s->configuration[0], | |
699 | sizeof(s->configuration)); | |
700 | logout("configuration: %s\n", nic_dump(&s->configuration[0], 16)); | |
701 | break; | |
702 | case CmdMulticastList: | |
703 | //~ missing("multicast list"); | |
704 | break; | |
705 | case CmdTx: | |
706 | (void)0; | |
707 | uint32_t tbd_array = le32_to_cpu(tx.tx_desc_addr); | |
708 | uint16_t tcb_bytes = (le16_to_cpu(tx.tcb_bytes) & 0x3fff); | |
709 | logout | |
710 | ("transmit, TBD array address 0x%08x, TCB byte count 0x%04x, TBD count %u\n", | |
711 | tbd_array, tcb_bytes, tx.tbd_count); | |
712 | assert(!bit_nc); | |
713 | //~ assert(!bit_sf); | |
714 | assert(tcb_bytes <= 2600); | |
715 | /* Next assertion fails for local configuration. */ | |
716 | //~ assert((tcb_bytes > 0) || (tbd_array != 0xffffffff)); | |
717 | if (!((tcb_bytes > 0) || (tbd_array != 0xffffffff))) { | |
718 | logout | |
719 | ("illegal values of TBD array address and TCB byte count!\n"); | |
720 | } | |
721 | uint8_t buf[MAX_ETH_FRAME_SIZE + 4]; | |
722 | uint16_t size = 0; | |
723 | uint32_t tbd_address = cb_address + 0x10; | |
724 | assert(tcb_bytes <= sizeof(buf)); | |
725 | while (size < tcb_bytes) { | |
726 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
727 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
728 | //~ uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
729 | tbd_address += 8; | |
730 | logout | |
731 | ("TBD (simplified mode): buffer address 0x%08x, size 0x%04x\n", | |
732 | tx_buffer_address, tx_buffer_size); | |
733 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
734 | tx_buffer_size); | |
735 | size += tx_buffer_size; | |
736 | } | |
737 | if (tbd_array == 0xffffffff) { | |
738 | /* Simplified mode. Was already handled by code above. */ | |
739 | } else { | |
740 | /* Flexible mode. */ | |
741 | uint8_t tbd_count = 0; | |
742 | if (!(s->configuration[6] & BIT(4))) { | |
743 | /* Extended TCB. */ | |
744 | assert(tcb_bytes == 0); | |
745 | for (; tbd_count < 2; tbd_count++) { | |
746 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
747 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
748 | uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
749 | tbd_address += 8; | |
750 | logout | |
751 | ("TBD (extended mode): buffer address 0x%08x, size 0x%04x\n", | |
752 | tx_buffer_address, tx_buffer_size); | |
753 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
754 | tx_buffer_size); | |
755 | size += tx_buffer_size; | |
756 | if (tx_buffer_el & 1) { | |
757 | break; | |
758 | } | |
759 | } | |
760 | } | |
761 | tbd_address = tbd_array; | |
762 | for (; tbd_count < tx.tbd_count; tbd_count++) { | |
763 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
764 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
765 | uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
766 | tbd_address += 8; | |
767 | logout | |
768 | ("TBD (flexible mode): buffer address 0x%08x, size 0x%04x\n", | |
769 | tx_buffer_address, tx_buffer_size); | |
770 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
771 | tx_buffer_size); | |
772 | size += tx_buffer_size; | |
773 | if (tx_buffer_el & 1) { | |
774 | break; | |
775 | } | |
776 | } | |
777 | } | |
778 | qemu_send_packet(s->vc, buf, size); | |
779 | s->statistics.tx_good_frames++; | |
780 | /* Transmit with bad status would raise an CX/TNO interrupt. | |
781 | * (82557 only). Emulation never has bad status. */ | |
782 | //~ eepro100_cx_interrupt(s); | |
783 | break; | |
784 | case CmdTDR: | |
785 | logout("load microcode\n"); | |
786 | /* Starting with offset 8, the command contains | |
787 | * 64 dwords microcode which we just ignore here. */ | |
788 | break; | |
789 | default: | |
790 | missing("undefined command"); | |
791 | } | |
792 | /* Write new status (success). */ | |
793 | stw_phys(cb_address, status | 0x8000 | 0x2000); | |
794 | if (bit_i) { | |
795 | /* CU completed action. */ | |
796 | eepro100_cx_interrupt(s); | |
797 | } | |
798 | if (bit_el) { | |
799 | /* CU becomes idle. */ | |
800 | set_cu_state(s, cu_idle); | |
801 | eepro100_cna_interrupt(s); | |
802 | } else if (bit_s) { | |
803 | /* CU becomes suspended. */ | |
804 | set_cu_state(s, cu_suspended); | |
805 | eepro100_cna_interrupt(s); | |
806 | } else { | |
807 | /* More entries in list. */ | |
808 | logout("CU list with at least one more entry\n"); | |
809 | goto next_command; | |
810 | } | |
811 | logout("CU list empty\n"); | |
812 | /* List is empty. Now CU is idle or suspended. */ | |
813 | break; | |
814 | case CU_RESUME: | |
815 | if (get_cu_state(s) != cu_suspended) { | |
816 | logout("bad CU resume from CU state %u\n", get_cu_state(s)); | |
817 | /* Workaround for bad Linux eepro100 driver which resumes | |
818 | * from idle state. */ | |
819 | //~ missing("cu resume"); | |
820 | set_cu_state(s, cu_suspended); | |
821 | } | |
822 | if (get_cu_state(s) == cu_suspended) { | |
823 | logout("CU resuming\n"); | |
824 | set_cu_state(s, cu_active); | |
825 | goto next_command; | |
826 | } | |
827 | break; | |
828 | case CU_STATSADDR: | |
829 | /* Load dump counters address. */ | |
830 | s->statsaddr = s->pointer; | |
831 | logout("val=0x%02x (status address)\n", val); | |
832 | break; | |
833 | case CU_SHOWSTATS: | |
834 | /* Dump statistical counters. */ | |
835 | dump_statistics(s); | |
836 | break; | |
837 | case CU_CMD_BASE: | |
838 | /* Load CU base. */ | |
839 | logout("val=0x%02x (CU base address)\n", val); | |
840 | s->cu_base = s->pointer; | |
841 | break; | |
842 | case CU_DUMPSTATS: | |
843 | /* Dump and reset statistical counters. */ | |
844 | dump_statistics(s); | |
845 | memset(&s->statistics, 0, sizeof(s->statistics)); | |
846 | break; | |
847 | case CU_SRESUME: | |
848 | /* CU static resume. */ | |
849 | missing("CU static resume"); | |
850 | break; | |
851 | default: | |
852 | missing("Undefined CU command"); | |
853 | } | |
854 | } | |
855 | ||
856 | static void eepro100_ru_command(EEPRO100State * s, uint8_t val) | |
857 | { | |
858 | switch (val) { | |
859 | case RU_NOP: | |
860 | /* No operation. */ | |
861 | break; | |
862 | case RX_START: | |
863 | /* RU start. */ | |
864 | if (get_ru_state(s) != ru_idle) { | |
865 | logout("RU state is %u, should be %u\n", get_ru_state(s), ru_idle); | |
866 | //~ assert(!"wrong RU state"); | |
867 | } | |
868 | set_ru_state(s, ru_ready); | |
869 | s->ru_offset = s->pointer; | |
870 | logout("val=0x%02x (rx start)\n", val); | |
871 | break; | |
872 | case RX_RESUME: | |
873 | /* Restart RU. */ | |
874 | if (get_ru_state(s) != ru_suspended) { | |
875 | logout("RU state is %u, should be %u\n", get_ru_state(s), | |
876 | ru_suspended); | |
877 | //~ assert(!"wrong RU state"); | |
878 | } | |
879 | set_ru_state(s, ru_ready); | |
880 | break; | |
881 | case RX_ADDR_LOAD: | |
882 | /* Load RU base. */ | |
883 | logout("val=0x%02x (RU base address)\n", val); | |
884 | s->ru_base = s->pointer; | |
885 | break; | |
886 | default: | |
887 | logout("val=0x%02x (undefined RU command)\n", val); | |
888 | missing("Undefined SU command"); | |
889 | } | |
890 | } | |
891 | ||
892 | static void eepro100_write_command(EEPRO100State * s, uint8_t val) | |
893 | { | |
894 | eepro100_ru_command(s, val & 0x0f); | |
895 | eepro100_cu_command(s, val & 0xf0); | |
896 | if ((val) == 0) { | |
897 | logout("val=0x%02x\n", val); | |
898 | } | |
899 | /* Clear command byte after command was accepted. */ | |
900 | s->mem[SCBCmd] = 0; | |
901 | } | |
902 | ||
903 | /***************************************************************************** | |
904 | * | |
905 | * EEPROM emulation. | |
906 | * | |
907 | ****************************************************************************/ | |
908 | ||
909 | #define EEPROM_CS 0x02 | |
910 | #define EEPROM_SK 0x01 | |
911 | #define EEPROM_DI 0x04 | |
912 | #define EEPROM_DO 0x08 | |
913 | ||
914 | static uint16_t eepro100_read_eeprom(EEPRO100State * s) | |
915 | { | |
916 | uint16_t val; | |
917 | memcpy(&val, &s->mem[SCBeeprom], sizeof(val)); | |
918 | if (eeprom93xx_read(s->eeprom)) { | |
919 | val |= EEPROM_DO; | |
920 | } else { | |
921 | val &= ~EEPROM_DO; | |
922 | } | |
923 | return val; | |
924 | } | |
925 | ||
926 | static void eepro100_write_eeprom(eeprom_t * eeprom, uint8_t val) | |
927 | { | |
928 | logout("write val=0x%02x\n", val); | |
929 | ||
930 | /* mask unwriteable bits */ | |
931 | //~ val = SET_MASKED(val, 0x31, eeprom->value); | |
932 | ||
933 | int eecs = ((val & EEPROM_CS) != 0); | |
934 | int eesk = ((val & EEPROM_SK) != 0); | |
935 | int eedi = ((val & EEPROM_DI) != 0); | |
936 | eeprom93xx_write(eeprom, eecs, eesk, eedi); | |
937 | } | |
938 | ||
939 | static void eepro100_write_pointer(EEPRO100State * s, uint32_t val) | |
940 | { | |
941 | s->pointer = le32_to_cpu(val); | |
942 | logout("val=0x%08x\n", val); | |
943 | } | |
944 | ||
945 | /***************************************************************************** | |
946 | * | |
947 | * MDI emulation. | |
948 | * | |
949 | ****************************************************************************/ | |
950 | ||
951 | #if defined(DEBUG_EEPRO100) | |
952 | static const char *mdi_op_name[] = { | |
953 | "opcode 0", | |
954 | "write", | |
955 | "read", | |
956 | "opcode 3" | |
957 | }; | |
958 | ||
959 | static const char *mdi_reg_name[] = { | |
960 | "Control", | |
961 | "Status", | |
962 | "PHY Identification (Word 1)", | |
963 | "PHY Identification (Word 2)", | |
964 | "Auto-Negotiation Advertisement", | |
965 | "Auto-Negotiation Link Partner Ability", | |
966 | "Auto-Negotiation Expansion" | |
967 | }; | |
968 | #endif /* DEBUG_EEPRO100 */ | |
969 | ||
970 | static uint32_t eepro100_read_mdi(EEPRO100State * s) | |
971 | { | |
972 | uint32_t val; | |
973 | memcpy(&val, &s->mem[0x10], sizeof(val)); | |
974 | ||
975 | #ifdef DEBUG_EEPRO100 | |
976 | uint8_t raiseint = (val & BIT(29)) >> 29; | |
977 | uint8_t opcode = (val & BITS(27, 26)) >> 26; | |
978 | uint8_t phy = (val & BITS(25, 21)) >> 21; | |
979 | uint8_t reg = (val & BITS(20, 16)) >> 16; | |
980 | uint16_t data = (val & BITS(15, 0)); | |
981 | #endif | |
982 | /* Emulation takes no time to finish MDI transaction. */ | |
983 | val |= BIT(28); | |
984 | TRACE(MDI, logout("val=0x%08x (int=%u, %s, phy=%u, %s, data=0x%04x\n", | |
985 | val, raiseint, mdi_op_name[opcode], phy, | |
986 | mdi_reg_name[reg], data)); | |
987 | return val; | |
988 | } | |
989 | ||
990 | //~ #define BITS(val, upper, lower) (val & ???) | |
991 | static void eepro100_write_mdi(EEPRO100State * s, uint32_t val) | |
992 | { | |
993 | uint8_t raiseint = (val & BIT(29)) >> 29; | |
994 | uint8_t opcode = (val & BITS(27, 26)) >> 26; | |
995 | uint8_t phy = (val & BITS(25, 21)) >> 21; | |
996 | uint8_t reg = (val & BITS(20, 16)) >> 16; | |
997 | uint16_t data = (val & BITS(15, 0)); | |
998 | if (phy != 1) { | |
999 | /* Unsupported PHY address. */ | |
1000 | //~ logout("phy must be 1 but is %u\n", phy); | |
1001 | data = 0; | |
1002 | } else if (opcode != 1 && opcode != 2) { | |
1003 | /* Unsupported opcode. */ | |
1004 | logout("opcode must be 1 or 2 but is %u\n", opcode); | |
1005 | data = 0; | |
1006 | } else if (reg > 6) { | |
1007 | /* Unsupported register. */ | |
1008 | logout("register must be 0...6 but is %u\n", reg); | |
1009 | data = 0; | |
1010 | } else { | |
1011 | TRACE(MDI, logout("val=0x%08x (int=%u, %s, phy=%u, %s, data=0x%04x\n", | |
1012 | val, raiseint, mdi_op_name[opcode], phy, | |
1013 | mdi_reg_name[reg], data)); | |
1014 | if (opcode == 1) { | |
1015 | /* MDI write */ | |
1016 | switch (reg) { | |
1017 | case 0: /* Control Register */ | |
1018 | if (data & 0x8000) { | |
1019 | /* Reset status and control registers to default. */ | |
1020 | s->mdimem[0] = eepro100_mdi_default[0]; | |
1021 | s->mdimem[1] = eepro100_mdi_default[1]; | |
1022 | data = s->mdimem[reg]; | |
1023 | } else { | |
1024 | /* Restart Auto Configuration = Normal Operation */ | |
1025 | data &= ~0x0200; | |
1026 | } | |
1027 | break; | |
1028 | case 1: /* Status Register */ | |
1029 | missing("not writable"); | |
1030 | data = s->mdimem[reg]; | |
1031 | break; | |
1032 | case 2: /* PHY Identification Register (Word 1) */ | |
1033 | case 3: /* PHY Identification Register (Word 2) */ | |
1034 | missing("not implemented"); | |
1035 | break; | |
1036 | case 4: /* Auto-Negotiation Advertisement Register */ | |
1037 | case 5: /* Auto-Negotiation Link Partner Ability Register */ | |
1038 | break; | |
1039 | case 6: /* Auto-Negotiation Expansion Register */ | |
1040 | default: | |
1041 | missing("not implemented"); | |
1042 | } | |
1043 | s->mdimem[reg] = data; | |
1044 | } else if (opcode == 2) { | |
1045 | /* MDI read */ | |
1046 | switch (reg) { | |
1047 | case 0: /* Control Register */ | |
1048 | if (data & 0x8000) { | |
1049 | /* Reset status and control registers to default. */ | |
1050 | s->mdimem[0] = eepro100_mdi_default[0]; | |
1051 | s->mdimem[1] = eepro100_mdi_default[1]; | |
1052 | } | |
1053 | break; | |
1054 | case 1: /* Status Register */ | |
1055 | s->mdimem[reg] |= 0x0020; | |
1056 | break; | |
1057 | case 2: /* PHY Identification Register (Word 1) */ | |
1058 | case 3: /* PHY Identification Register (Word 2) */ | |
1059 | case 4: /* Auto-Negotiation Advertisement Register */ | |
1060 | break; | |
1061 | case 5: /* Auto-Negotiation Link Partner Ability Register */ | |
1062 | s->mdimem[reg] = 0x41fe; | |
1063 | break; | |
1064 | case 6: /* Auto-Negotiation Expansion Register */ | |
1065 | s->mdimem[reg] = 0x0001; | |
1066 | break; | |
1067 | } | |
1068 | data = s->mdimem[reg]; | |
1069 | } | |
1070 | /* Emulation takes no time to finish MDI transaction. | |
1071 | * Set MDI bit in SCB status register. */ | |
1072 | s->mem[SCBAck] |= 0x08; | |
1073 | val |= BIT(28); | |
1074 | if (raiseint) { | |
1075 | eepro100_mdi_interrupt(s); | |
1076 | } | |
1077 | } | |
1078 | val = (val & 0xffff0000) + data; | |
1079 | memcpy(&s->mem[0x10], &val, sizeof(val)); | |
1080 | } | |
1081 | ||
1082 | /***************************************************************************** | |
1083 | * | |
1084 | * Port emulation. | |
1085 | * | |
1086 | ****************************************************************************/ | |
1087 | ||
1088 | #define PORT_SOFTWARE_RESET 0 | |
1089 | #define PORT_SELFTEST 1 | |
1090 | #define PORT_SELECTIVE_RESET 2 | |
1091 | #define PORT_DUMP 3 | |
1092 | #define PORT_SELECTION_MASK 3 | |
1093 | ||
1094 | typedef struct { | |
1095 | uint32_t st_sign; /* Self Test Signature */ | |
1096 | uint32_t st_result; /* Self Test Results */ | |
1097 | } eepro100_selftest_t; | |
1098 | ||
1099 | static uint32_t eepro100_read_port(EEPRO100State * s) | |
1100 | { | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static void eepro100_write_port(EEPRO100State * s, uint32_t val) | |
1105 | { | |
1106 | val = le32_to_cpu(val); | |
1107 | uint32_t address = (val & ~PORT_SELECTION_MASK); | |
1108 | uint8_t selection = (val & PORT_SELECTION_MASK); | |
1109 | switch (selection) { | |
1110 | case PORT_SOFTWARE_RESET: | |
1111 | nic_reset(s); | |
1112 | break; | |
1113 | case PORT_SELFTEST: | |
1114 | logout("selftest address=0x%08x\n", address); | |
1115 | eepro100_selftest_t data; | |
1116 | cpu_physical_memory_read(address, (uint8_t *) & data, sizeof(data)); | |
1117 | data.st_sign = 0xffffffff; | |
1118 | data.st_result = 0; | |
1119 | cpu_physical_memory_write(address, (uint8_t *) & data, sizeof(data)); | |
1120 | break; | |
1121 | case PORT_SELECTIVE_RESET: | |
1122 | logout("selective reset, selftest address=0x%08x\n", address); | |
1123 | nic_selective_reset(s); | |
1124 | break; | |
1125 | default: | |
1126 | logout("val=0x%08x\n", val); | |
1127 | missing("unknown port selection"); | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | /***************************************************************************** | |
1132 | * | |
1133 | * General hardware emulation. | |
1134 | * | |
1135 | ****************************************************************************/ | |
1136 | ||
1137 | static uint8_t eepro100_read1(EEPRO100State * s, uint32_t addr) | |
1138 | { | |
1139 | uint8_t val; | |
1140 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1141 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1142 | } | |
1143 | ||
1144 | switch (addr) { | |
1145 | case SCBStatus: | |
1146 | //~ val = eepro100_read_status(s); | |
1147 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1148 | break; | |
1149 | case SCBAck: | |
1150 | //~ val = eepro100_read_status(s); | |
1151 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1152 | break; | |
1153 | case SCBCmd: | |
1154 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1155 | //~ val = eepro100_read_command(s); | |
1156 | break; | |
1157 | case SCBIntmask: | |
1158 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1159 | break; | |
1160 | case SCBPort + 3: | |
1161 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1162 | break; | |
1163 | case SCBeeprom: | |
1164 | val = eepro100_read_eeprom(s); | |
1165 | break; | |
1166 | case 0x1b: /* PMDR (power management driver register) */ | |
1167 | val = 0; | |
1168 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1169 | break; | |
1170 | case 0x1d: /* general status register */ | |
1171 | /* 100 Mbps full duplex, valid link */ | |
1172 | val = 0x07; | |
1173 | logout("addr=General Status val=%02x\n", val); | |
1174 | break; | |
1175 | default: | |
1176 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1177 | missing("unknown byte read"); | |
1178 | } | |
1179 | return val; | |
1180 | } | |
1181 | ||
1182 | static uint16_t eepro100_read2(EEPRO100State * s, uint32_t addr) | |
1183 | { | |
1184 | uint16_t val; | |
1185 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1186 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1187 | } | |
1188 | ||
1189 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1190 | ||
1191 | switch (addr) { | |
1192 | case SCBStatus: | |
1193 | //~ val = eepro100_read_status(s); | |
1194 | break; | |
1195 | case SCBeeprom: | |
1196 | val = eepro100_read_eeprom(s); | |
1197 | break; | |
1198 | default: | |
1199 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1200 | missing("unknown word read"); | |
1201 | } | |
1202 | return val; | |
1203 | } | |
1204 | ||
1205 | static uint32_t eepro100_read4(EEPRO100State * s, uint32_t addr) | |
1206 | { | |
1207 | uint32_t val; | |
1208 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1209 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1210 | } | |
1211 | ||
1212 | switch (addr) { | |
1213 | case SCBStatus: | |
1214 | //~ val = eepro100_read_status(s); | |
1215 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1216 | break; | |
1217 | case SCBPointer: | |
1218 | //~ val = eepro100_read_pointer(s); | |
1219 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1220 | break; | |
1221 | case SCBPort: | |
1222 | val = eepro100_read_port(s); | |
1223 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1224 | break; | |
1225 | case SCBCtrlMDI: | |
1226 | val = eepro100_read_mdi(s); | |
1227 | break; | |
1228 | default: | |
1229 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1230 | missing("unknown longword read"); | |
1231 | } | |
1232 | return val; | |
1233 | } | |
1234 | ||
1235 | static void eepro100_write1(EEPRO100State * s, uint32_t addr, uint8_t val) | |
1236 | { | |
1237 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1238 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1239 | } | |
1240 | ||
1241 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1242 | ||
1243 | switch (addr) { | |
1244 | case SCBStatus: | |
1245 | //~ eepro100_write_status(s, val); | |
1246 | break; | |
1247 | case SCBAck: | |
1248 | eepro100_acknowledge(s); | |
1249 | break; | |
1250 | case SCBCmd: | |
1251 | eepro100_write_command(s, val); | |
1252 | break; | |
1253 | case SCBIntmask: | |
1254 | if (val & BIT(1)) { | |
1255 | eepro100_swi_interrupt(s); | |
1256 | } | |
1257 | eepro100_interrupt(s, 0); | |
1258 | break; | |
1259 | case SCBPort + 3: | |
3257d2b6 TS |
1260 | case SCBFlow: |
1261 | case SCBFlow + 1: | |
1262 | case SCBFlow + 2: | |
1263 | case SCBFlow + 3: | |
663e8e51 TS |
1264 | logout("addr=%s val=0x%02x\n", regname(addr), val); |
1265 | break; | |
1266 | case SCBeeprom: | |
1267 | eepro100_write_eeprom(s->eeprom, val); | |
1268 | break; | |
1269 | default: | |
1270 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1271 | missing("unknown byte write"); | |
1272 | } | |
1273 | } | |
1274 | ||
1275 | static void eepro100_write2(EEPRO100State * s, uint32_t addr, uint16_t val) | |
1276 | { | |
1277 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1278 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1279 | } | |
1280 | ||
1281 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1282 | ||
1283 | switch (addr) { | |
1284 | case SCBStatus: | |
1285 | //~ eepro100_write_status(s, val); | |
1286 | eepro100_acknowledge(s); | |
1287 | break; | |
1288 | case SCBCmd: | |
1289 | eepro100_write_command(s, val); | |
1290 | eepro100_write1(s, SCBIntmask, val >> 8); | |
1291 | break; | |
1292 | case SCBeeprom: | |
1293 | eepro100_write_eeprom(s->eeprom, val); | |
1294 | break; | |
1295 | default: | |
1296 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1297 | missing("unknown word write"); | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | static void eepro100_write4(EEPRO100State * s, uint32_t addr, uint32_t val) | |
1302 | { | |
1303 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1304 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1305 | } | |
1306 | ||
1307 | switch (addr) { | |
1308 | case SCBPointer: | |
1309 | eepro100_write_pointer(s, val); | |
1310 | break; | |
1311 | case SCBPort: | |
1312 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1313 | eepro100_write_port(s, val); | |
1314 | break; | |
1315 | case SCBCtrlMDI: | |
1316 | eepro100_write_mdi(s, val); | |
1317 | break; | |
1318 | default: | |
1319 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1320 | missing("unknown longword write"); | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | static uint32_t ioport_read1(void *opaque, uint32_t addr) | |
1325 | { | |
1326 | EEPRO100State *s = opaque; | |
1327 | //~ logout("addr=%s\n", regname(addr)); | |
1328 | return eepro100_read1(s, addr - s->region[1]); | |
1329 | } | |
1330 | ||
1331 | static uint32_t ioport_read2(void *opaque, uint32_t addr) | |
1332 | { | |
1333 | EEPRO100State *s = opaque; | |
1334 | return eepro100_read2(s, addr - s->region[1]); | |
1335 | } | |
1336 | ||
1337 | static uint32_t ioport_read4(void *opaque, uint32_t addr) | |
1338 | { | |
1339 | EEPRO100State *s = opaque; | |
1340 | return eepro100_read4(s, addr - s->region[1]); | |
1341 | } | |
1342 | ||
1343 | static void ioport_write1(void *opaque, uint32_t addr, uint32_t val) | |
1344 | { | |
1345 | EEPRO100State *s = opaque; | |
1346 | //~ logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1347 | eepro100_write1(s, addr - s->region[1], val); | |
1348 | } | |
1349 | ||
1350 | static void ioport_write2(void *opaque, uint32_t addr, uint32_t val) | |
1351 | { | |
1352 | EEPRO100State *s = opaque; | |
1353 | eepro100_write2(s, addr - s->region[1], val); | |
1354 | } | |
1355 | ||
1356 | static void ioport_write4(void *opaque, uint32_t addr, uint32_t val) | |
1357 | { | |
1358 | EEPRO100State *s = opaque; | |
1359 | eepro100_write4(s, addr - s->region[1], val); | |
1360 | } | |
1361 | ||
1362 | /***********************************************************/ | |
1363 | /* PCI EEPRO100 definitions */ | |
1364 | ||
1365 | typedef struct PCIEEPRO100State { | |
1366 | PCIDevice dev; | |
1367 | EEPRO100State eepro100; | |
1368 | } PCIEEPRO100State; | |
1369 | ||
1370 | static void pci_map(PCIDevice * pci_dev, int region_num, | |
1371 | uint32_t addr, uint32_t size, int type) | |
1372 | { | |
1373 | PCIEEPRO100State *d = (PCIEEPRO100State *) pci_dev; | |
1374 | EEPRO100State *s = &d->eepro100; | |
1375 | ||
1376 | logout("region %d, addr=0x%08x, size=0x%08x, type=%d\n", | |
1377 | region_num, addr, size, type); | |
1378 | ||
1379 | assert(region_num == 1); | |
1380 | register_ioport_write(addr, size, 1, ioport_write1, s); | |
1381 | register_ioport_read(addr, size, 1, ioport_read1, s); | |
1382 | register_ioport_write(addr, size, 2, ioport_write2, s); | |
1383 | register_ioport_read(addr, size, 2, ioport_read2, s); | |
1384 | register_ioport_write(addr, size, 4, ioport_write4, s); | |
1385 | register_ioport_read(addr, size, 4, ioport_read4, s); | |
1386 | ||
1387 | s->region[region_num] = addr; | |
1388 | } | |
1389 | ||
1390 | static void pci_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) | |
1391 | { | |
1392 | EEPRO100State *s = opaque; | |
1393 | addr -= s->region[0]; | |
1394 | //~ logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1395 | eepro100_write1(s, addr, val); | |
1396 | } | |
1397 | ||
1398 | static void pci_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val) | |
1399 | { | |
1400 | EEPRO100State *s = opaque; | |
1401 | addr -= s->region[0]; | |
1402 | //~ logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1403 | eepro100_write2(s, addr, val); | |
1404 | } | |
1405 | ||
1406 | static void pci_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val) | |
1407 | { | |
1408 | EEPRO100State *s = opaque; | |
1409 | addr -= s->region[0]; | |
1410 | //~ logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1411 | eepro100_write4(s, addr, val); | |
1412 | } | |
1413 | ||
1414 | static uint32_t pci_mmio_readb(void *opaque, target_phys_addr_t addr) | |
1415 | { | |
1416 | EEPRO100State *s = opaque; | |
1417 | addr -= s->region[0]; | |
1418 | //~ logout("addr=%s\n", regname(addr)); | |
1419 | return eepro100_read1(s, addr); | |
1420 | } | |
1421 | ||
1422 | static uint32_t pci_mmio_readw(void *opaque, target_phys_addr_t addr) | |
1423 | { | |
1424 | EEPRO100State *s = opaque; | |
1425 | addr -= s->region[0]; | |
1426 | //~ logout("addr=%s\n", regname(addr)); | |
1427 | return eepro100_read2(s, addr); | |
1428 | } | |
1429 | ||
1430 | static uint32_t pci_mmio_readl(void *opaque, target_phys_addr_t addr) | |
1431 | { | |
1432 | EEPRO100State *s = opaque; | |
1433 | addr -= s->region[0]; | |
1434 | //~ logout("addr=%s\n", regname(addr)); | |
1435 | return eepro100_read4(s, addr); | |
1436 | } | |
1437 | ||
1438 | static CPUWriteMemoryFunc *pci_mmio_write[] = { | |
1439 | pci_mmio_writeb, | |
1440 | pci_mmio_writew, | |
1441 | pci_mmio_writel | |
1442 | }; | |
1443 | ||
1444 | static CPUReadMemoryFunc *pci_mmio_read[] = { | |
1445 | pci_mmio_readb, | |
1446 | pci_mmio_readw, | |
1447 | pci_mmio_readl | |
1448 | }; | |
1449 | ||
1450 | static void pci_mmio_map(PCIDevice * pci_dev, int region_num, | |
1451 | uint32_t addr, uint32_t size, int type) | |
1452 | { | |
1453 | PCIEEPRO100State *d = (PCIEEPRO100State *) pci_dev; | |
1454 | ||
1455 | logout("region %d, addr=0x%08x, size=0x%08x, type=%d\n", | |
1456 | region_num, addr, size, type); | |
1457 | ||
1458 | if (region_num == 0) { | |
1459 | /* Map control / status registers. */ | |
1460 | cpu_register_physical_memory(addr, size, d->eepro100.mmio_index); | |
1461 | d->eepro100.region[region_num] = addr; | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | static int nic_can_receive(void *opaque) | |
1466 | { | |
1467 | EEPRO100State *s = opaque; | |
1468 | logout("%p\n", s); | |
1469 | return get_ru_state(s) == ru_ready; | |
1470 | //~ return !eepro100_buffer_full(s); | |
1471 | } | |
1472 | ||
1473 | #define MIN_BUF_SIZE 60 | |
1474 | ||
1475 | static void nic_receive(void *opaque, const uint8_t * buf, int size) | |
1476 | { | |
1477 | /* TODO: | |
1478 | * - Magic packets should set bit 30 in power management driver register. | |
1479 | * - Interesting packets should set bit 29 in power management driver register. | |
1480 | */ | |
1481 | EEPRO100State *s = opaque; | |
1482 | uint16_t rfd_status = 0xa000; | |
1483 | static const uint8_t broadcast_macaddr[6] = | |
1484 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
1485 | ||
1486 | /* TODO: check multiple IA bit. */ | |
1487 | assert(!(s->configuration[20] & BIT(6))); | |
1488 | ||
1489 | if (s->configuration[8] & 0x80) { | |
1490 | /* CSMA is disabled. */ | |
1491 | logout("%p received while CSMA is disabled\n", s); | |
1492 | return; | |
1493 | } else if (size < 64 && (s->configuration[7] & 1)) { | |
1494 | /* Short frame and configuration byte 7/0 (discard short receive) set: | |
1495 | * Short frame is discarded */ | |
1496 | logout("%p received short frame (%d byte)\n", s, size); | |
1497 | s->statistics.rx_short_frame_errors++; | |
1498 | //~ return; | |
1499 | } else if ((size > MAX_ETH_FRAME_SIZE + 4) && !(s->configuration[18] & 8)) { | |
1500 | /* Long frame and configuration byte 18/3 (long receive ok) not set: | |
1501 | * Long frames are discarded. */ | |
1502 | logout("%p received long frame (%d byte), ignored\n", s, size); | |
1503 | return; | |
1504 | } else if (memcmp(buf, s->macaddr, 6) == 0) { // !!! | |
1505 | /* Frame matches individual address. */ | |
1506 | /* TODO: check configuration byte 15/4 (ignore U/L). */ | |
1507 | logout("%p received frame for me, len=%d\n", s, size); | |
1508 | } else if (memcmp(buf, broadcast_macaddr, 6) == 0) { | |
1509 | /* Broadcast frame. */ | |
1510 | logout("%p received broadcast, len=%d\n", s, size); | |
1511 | rfd_status |= 0x0002; | |
1512 | } else if (buf[0] & 0x01) { // !!! | |
1513 | /* Multicast frame. */ | |
1514 | logout("%p received multicast, len=%d\n", s, size); | |
1515 | /* TODO: check multicast all bit. */ | |
1516 | assert(!(s->configuration[21] & BIT(3))); | |
1517 | int mcast_idx = compute_mcast_idx(buf); | |
1518 | if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7)))) { | |
1519 | return; | |
1520 | } | |
1521 | rfd_status |= 0x0002; | |
1522 | } else if (s->configuration[15] & 1) { | |
1523 | /* Promiscuous: receive all. */ | |
1524 | logout("%p received frame in promiscuous mode, len=%d\n", s, size); | |
1525 | rfd_status |= 0x0004; | |
1526 | } else { | |
1527 | logout("%p received frame, ignored, len=%d,%s\n", s, size, | |
1528 | nic_dump(buf, size)); | |
1529 | return; | |
1530 | } | |
1531 | ||
1532 | if (get_ru_state(s) != ru_ready) { | |
1533 | /* No ressources available. */ | |
1534 | logout("no ressources, state=%u\n", get_ru_state(s)); | |
1535 | s->statistics.rx_resource_errors++; | |
1536 | //~ assert(!"no ressources"); | |
1537 | return; | |
1538 | } | |
1539 | //~ !!! | |
1540 | //~ $3 = {status = 0x0, command = 0xc000, link = 0x2d220, rx_buf_addr = 0x207dc, count = 0x0, size = 0x5f8, packet = {0x0 <repeats 1518 times>}} | |
1541 | eepro100_rx_t rx; | |
1542 | cpu_physical_memory_read(s->ru_base + s->ru_offset, (uint8_t *) & rx, | |
1543 | offsetof(eepro100_rx_t, packet)); | |
1544 | uint16_t rfd_command = le16_to_cpu(rx.command); | |
1545 | uint16_t rfd_size = le16_to_cpu(rx.size); | |
1546 | assert(size <= rfd_size); | |
1547 | if (size < 64) { | |
1548 | rfd_status |= 0x0080; | |
1549 | } | |
1550 | logout("command 0x%04x, link 0x%08x, addr 0x%08x, size %u\n", rfd_command, | |
1551 | rx.link, rx.rx_buf_addr, rfd_size); | |
1552 | stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, status), | |
1553 | rfd_status); | |
1554 | stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, count), size); | |
1555 | /* Early receive interrupt not supported. */ | |
1556 | //~ eepro100_er_interrupt(s); | |
1557 | /* Receive CRC Transfer not supported. */ | |
1558 | assert(!(s->configuration[18] & 4)); | |
1559 | /* TODO: check stripping enable bit. */ | |
1560 | //~ assert(!(s->configuration[17] & 1)); | |
1561 | cpu_physical_memory_write(s->ru_base + s->ru_offset + | |
1562 | offsetof(eepro100_rx_t, packet), buf, size); | |
1563 | s->statistics.rx_good_frames++; | |
1564 | eepro100_fr_interrupt(s); | |
1565 | s->ru_offset = le32_to_cpu(rx.link); | |
1566 | if (rfd_command & 0x8000) { | |
1567 | /* EL bit is set, so this was the last frame. */ | |
1568 | assert(0); | |
1569 | } | |
1570 | if (rfd_command & 0x4000) { | |
1571 | /* S bit is set. */ | |
1572 | set_ru_state(s, ru_suspended); | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | static int nic_load(QEMUFile * f, void *opaque, int version_id) | |
1577 | { | |
1578 | EEPRO100State *s = (EEPRO100State *) opaque; | |
2657c663 | 1579 | int i; |
663e8e51 TS |
1580 | int ret; |
1581 | ||
663e8e51 TS |
1582 | if (version_id > 3) |
1583 | return -EINVAL; | |
1584 | ||
1585 | if (s->pci_dev && version_id >= 3) { | |
1586 | ret = pci_device_load(s->pci_dev, f); | |
1587 | if (ret < 0) | |
1588 | return ret; | |
1589 | } | |
1590 | ||
1591 | if (version_id >= 2) { | |
1592 | qemu_get_8s(f, &s->rxcr); | |
1593 | } else { | |
1594 | s->rxcr = 0x0c; | |
1595 | } | |
1596 | ||
1597 | qemu_get_8s(f, &s->cmd); | |
1598 | qemu_get_be32s(f, &s->start); | |
1599 | qemu_get_be32s(f, &s->stop); | |
1600 | qemu_get_8s(f, &s->boundary); | |
1601 | qemu_get_8s(f, &s->tsr); | |
1602 | qemu_get_8s(f, &s->tpsr); | |
1603 | qemu_get_be16s(f, &s->tcnt); | |
1604 | qemu_get_be16s(f, &s->rcnt); | |
1605 | qemu_get_be32s(f, &s->rsar); | |
1606 | qemu_get_8s(f, &s->rsr); | |
1607 | qemu_get_8s(f, &s->isr); | |
1608 | qemu_get_8s(f, &s->dcfg); | |
1609 | qemu_get_8s(f, &s->imr); | |
1610 | qemu_get_buffer(f, s->phys, 6); | |
1611 | qemu_get_8s(f, &s->curpag); | |
1612 | qemu_get_buffer(f, s->mult, 8); | |
1613 | qemu_get_buffer(f, s->mem, sizeof(s->mem)); | |
1614 | ||
2657c663 AZ |
1615 | /* Restore all members of struct between scv_stat and mem */ |
1616 | qemu_get_8s(f, &s->scb_stat); | |
1617 | qemu_get_8s(f, &s->int_stat); | |
1618 | for (i = 0; i < 3; i++) | |
1619 | qemu_get_be32s(f, &s->region[i]); | |
1620 | qemu_get_buffer(f, s->macaddr, 6); | |
5fafdf24 | 1621 | for (i = 0; i < 19; i++) |
2657c663 AZ |
1622 | qemu_get_be32s(f, &s->statcounter[i]); |
1623 | for (i = 0; i < 32; i++) | |
1624 | qemu_get_be16s(f, &s->mdimem[i]); | |
1625 | /* The eeprom should be saved and restored by its own routines */ | |
1626 | qemu_get_be32s(f, &s->device); | |
1627 | qemu_get_be32s(f, &s->pointer); | |
1628 | qemu_get_be32s(f, &s->cu_base); | |
1629 | qemu_get_be32s(f, &s->cu_offset); | |
1630 | qemu_get_be32s(f, &s->ru_base); | |
1631 | qemu_get_be32s(f, &s->ru_offset); | |
1632 | qemu_get_be32s(f, &s->statsaddr); | |
1633 | /* Restore epro100_stats_t statistics */ | |
1634 | qemu_get_be32s(f, &s->statistics.tx_good_frames); | |
1635 | qemu_get_be32s(f, &s->statistics.tx_max_collisions); | |
1636 | qemu_get_be32s(f, &s->statistics.tx_late_collisions); | |
1637 | qemu_get_be32s(f, &s->statistics.tx_underruns); | |
1638 | qemu_get_be32s(f, &s->statistics.tx_lost_crs); | |
1639 | qemu_get_be32s(f, &s->statistics.tx_deferred); | |
1640 | qemu_get_be32s(f, &s->statistics.tx_single_collisions); | |
1641 | qemu_get_be32s(f, &s->statistics.tx_multiple_collisions); | |
1642 | qemu_get_be32s(f, &s->statistics.tx_total_collisions); | |
1643 | qemu_get_be32s(f, &s->statistics.rx_good_frames); | |
1644 | qemu_get_be32s(f, &s->statistics.rx_crc_errors); | |
1645 | qemu_get_be32s(f, &s->statistics.rx_alignment_errors); | |
1646 | qemu_get_be32s(f, &s->statistics.rx_resource_errors); | |
1647 | qemu_get_be32s(f, &s->statistics.rx_overrun_errors); | |
1648 | qemu_get_be32s(f, &s->statistics.rx_cdt_errors); | |
1649 | qemu_get_be32s(f, &s->statistics.rx_short_frame_errors); | |
1650 | qemu_get_be32s(f, &s->statistics.fc_xmt_pause); | |
1651 | qemu_get_be32s(f, &s->statistics.fc_rcv_pause); | |
1652 | qemu_get_be32s(f, &s->statistics.fc_rcv_unsupported); | |
1653 | qemu_get_be16s(f, &s->statistics.xmt_tco_frames); | |
1654 | qemu_get_be16s(f, &s->statistics.rcv_tco_frames); | |
1655 | qemu_get_be32s(f, &s->statistics.complete); | |
1656 | #if 0 | |
1657 | qemu_get_be16s(f, &s->status); | |
1658 | #endif | |
1659 | ||
1660 | /* Configuration bytes. */ | |
1661 | qemu_get_buffer(f, s->configuration, sizeof(s->configuration)); | |
1662 | ||
663e8e51 TS |
1663 | return 0; |
1664 | } | |
1665 | ||
1666 | static void nic_save(QEMUFile * f, void *opaque) | |
1667 | { | |
1668 | EEPRO100State *s = (EEPRO100State *) opaque; | |
2657c663 | 1669 | int i; |
663e8e51 TS |
1670 | |
1671 | if (s->pci_dev) | |
1672 | pci_device_save(s->pci_dev, f); | |
1673 | ||
1674 | qemu_put_8s(f, &s->rxcr); | |
1675 | ||
1676 | qemu_put_8s(f, &s->cmd); | |
1677 | qemu_put_be32s(f, &s->start); | |
1678 | qemu_put_be32s(f, &s->stop); | |
1679 | qemu_put_8s(f, &s->boundary); | |
1680 | qemu_put_8s(f, &s->tsr); | |
1681 | qemu_put_8s(f, &s->tpsr); | |
1682 | qemu_put_be16s(f, &s->tcnt); | |
1683 | qemu_put_be16s(f, &s->rcnt); | |
1684 | qemu_put_be32s(f, &s->rsar); | |
1685 | qemu_put_8s(f, &s->rsr); | |
1686 | qemu_put_8s(f, &s->isr); | |
1687 | qemu_put_8s(f, &s->dcfg); | |
1688 | qemu_put_8s(f, &s->imr); | |
1689 | qemu_put_buffer(f, s->phys, 6); | |
1690 | qemu_put_8s(f, &s->curpag); | |
1691 | qemu_put_buffer(f, s->mult, 8); | |
1692 | qemu_put_buffer(f, s->mem, sizeof(s->mem)); | |
2657c663 AZ |
1693 | |
1694 | /* Save all members of struct between scv_stat and mem */ | |
1695 | qemu_put_8s(f, &s->scb_stat); | |
1696 | qemu_put_8s(f, &s->int_stat); | |
1697 | for (i = 0; i < 3; i++) | |
1698 | qemu_put_be32s(f, &s->region[i]); | |
1699 | qemu_put_buffer(f, s->macaddr, 6); | |
5fafdf24 | 1700 | for (i = 0; i < 19; i++) |
2657c663 AZ |
1701 | qemu_put_be32s(f, &s->statcounter[i]); |
1702 | for (i = 0; i < 32; i++) | |
1703 | qemu_put_be16s(f, &s->mdimem[i]); | |
1704 | /* The eeprom should be saved and restored by its own routines */ | |
1705 | qemu_put_be32s(f, &s->device); | |
1706 | qemu_put_be32s(f, &s->pointer); | |
1707 | qemu_put_be32s(f, &s->cu_base); | |
1708 | qemu_put_be32s(f, &s->cu_offset); | |
1709 | qemu_put_be32s(f, &s->ru_base); | |
1710 | qemu_put_be32s(f, &s->ru_offset); | |
1711 | qemu_put_be32s(f, &s->statsaddr); | |
1712 | /* Save epro100_stats_t statistics */ | |
1713 | qemu_put_be32s(f, &s->statistics.tx_good_frames); | |
1714 | qemu_put_be32s(f, &s->statistics.tx_max_collisions); | |
1715 | qemu_put_be32s(f, &s->statistics.tx_late_collisions); | |
1716 | qemu_put_be32s(f, &s->statistics.tx_underruns); | |
1717 | qemu_put_be32s(f, &s->statistics.tx_lost_crs); | |
1718 | qemu_put_be32s(f, &s->statistics.tx_deferred); | |
1719 | qemu_put_be32s(f, &s->statistics.tx_single_collisions); | |
1720 | qemu_put_be32s(f, &s->statistics.tx_multiple_collisions); | |
1721 | qemu_put_be32s(f, &s->statistics.tx_total_collisions); | |
1722 | qemu_put_be32s(f, &s->statistics.rx_good_frames); | |
1723 | qemu_put_be32s(f, &s->statistics.rx_crc_errors); | |
1724 | qemu_put_be32s(f, &s->statistics.rx_alignment_errors); | |
1725 | qemu_put_be32s(f, &s->statistics.rx_resource_errors); | |
1726 | qemu_put_be32s(f, &s->statistics.rx_overrun_errors); | |
1727 | qemu_put_be32s(f, &s->statistics.rx_cdt_errors); | |
1728 | qemu_put_be32s(f, &s->statistics.rx_short_frame_errors); | |
1729 | qemu_put_be32s(f, &s->statistics.fc_xmt_pause); | |
1730 | qemu_put_be32s(f, &s->statistics.fc_rcv_pause); | |
1731 | qemu_put_be32s(f, &s->statistics.fc_rcv_unsupported); | |
1732 | qemu_put_be16s(f, &s->statistics.xmt_tco_frames); | |
1733 | qemu_put_be16s(f, &s->statistics.rcv_tco_frames); | |
1734 | qemu_put_be32s(f, &s->statistics.complete); | |
1735 | #if 0 | |
1736 | qemu_put_be16s(f, &s->status); | |
1737 | #endif | |
1738 | ||
1739 | /* Configuration bytes. */ | |
1740 | qemu_put_buffer(f, s->configuration, sizeof(s->configuration)); | |
663e8e51 TS |
1741 | } |
1742 | ||
1743 | static void nic_init(PCIBus * bus, NICInfo * nd, | |
1744 | const char *name, uint32_t device) | |
1745 | { | |
1746 | PCIEEPRO100State *d; | |
1747 | EEPRO100State *s; | |
1748 | ||
1749 | logout("\n"); | |
1750 | ||
1751 | d = (PCIEEPRO100State *) pci_register_device(bus, name, | |
1752 | sizeof(PCIEEPRO100State), -1, | |
1753 | NULL, NULL); | |
1754 | ||
1755 | s = &d->eepro100; | |
1756 | s->device = device; | |
1757 | s->pci_dev = &d->dev; | |
1758 | ||
1759 | pci_reset(s); | |
1760 | ||
1761 | /* Add 64 * 2 EEPROM. i82557 and i82558 support a 64 word EEPROM, | |
1762 | * i82559 and later support 64 or 256 word EEPROM. */ | |
1763 | s->eeprom = eeprom93xx_new(EEPROM_SIZE); | |
1764 | ||
1765 | /* Handler for memory-mapped I/O */ | |
1766 | d->eepro100.mmio_index = | |
1767 | cpu_register_io_memory(0, pci_mmio_read, pci_mmio_write, s); | |
1768 | ||
1769 | pci_register_io_region(&d->dev, 0, PCI_MEM_SIZE, | |
1770 | PCI_ADDRESS_SPACE_MEM | | |
1771 | PCI_ADDRESS_SPACE_MEM_PREFETCH, pci_mmio_map); | |
1772 | pci_register_io_region(&d->dev, 1, PCI_IO_SIZE, PCI_ADDRESS_SPACE_IO, | |
1773 | pci_map); | |
1774 | pci_register_io_region(&d->dev, 2, PCI_FLASH_SIZE, PCI_ADDRESS_SPACE_MEM, | |
1775 | pci_mmio_map); | |
1776 | ||
1777 | memcpy(s->macaddr, nd->macaddr, 6); | |
1778 | logout("macaddr: %s\n", nic_dump(&s->macaddr[0], 6)); | |
1779 | assert(s->region[1] == 0); | |
1780 | ||
1781 | nic_reset(s); | |
1782 | ||
1783 | s->vc = qemu_new_vlan_client(nd->vlan, nic_receive, nic_can_receive, s); | |
1784 | ||
1785 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), | |
1786 | "eepro100 pci macaddr=%02x:%02x:%02x:%02x:%02x:%02x", | |
1787 | s->macaddr[0], | |
1788 | s->macaddr[1], | |
1789 | s->macaddr[2], s->macaddr[3], s->macaddr[4], s->macaddr[5]); | |
1790 | ||
1791 | qemu_register_reset(nic_reset, s); | |
1792 | ||
1793 | /* XXX: instance number ? */ | |
1794 | register_savevm(name, 0, 3, nic_save, nic_load, s); | |
1795 | } | |
1796 | ||
1797 | void pci_i82551_init(PCIBus * bus, NICInfo * nd, int devfn) | |
1798 | { | |
1799 | nic_init(bus, nd, "i82551", i82551); | |
1800 | //~ uint8_t *pci_conf = d->dev.config; | |
1801 | } | |
1802 | ||
1803 | void pci_i82557b_init(PCIBus * bus, NICInfo * nd, int devfn) | |
1804 | { | |
1805 | nic_init(bus, nd, "i82557b", i82557B); | |
1806 | } | |
1807 | ||
1808 | void pci_i82559er_init(PCIBus * bus, NICInfo * nd, int devfn) | |
1809 | { | |
1810 | nic_init(bus, nd, "i82559er", i82559ER); | |
1811 | } | |
1812 | ||
1813 | /* eof */ |