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Commit | Line | Data |
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663e8e51 TS |
1 | /* |
2 | * QEMU i8255x (PRO100) emulation | |
3 | * | |
230a167c | 4 | * Copyright (C) 2006-2010 Stefan Weil |
663e8e51 TS |
5 | * |
6 | * Portions of the code are copies from grub / etherboot eepro100.c | |
7 | * and linux e100.c. | |
8 | * | |
230a167c | 9 | * This program is free software: you can redistribute it and/or modify |
663e8e51 | 10 | * it under the terms of the GNU General Public License as published by |
230a167c SW |
11 | * the Free Software Foundation, either version 2 of the License, or |
12 | * (at your option) version 3 or any later version. | |
663e8e51 TS |
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 | |
230a167c | 20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
663e8e51 TS |
21 | * |
22 | * Tested features (i82559): | |
6cded3a4 | 23 | * PXE boot (i386) ok |
663e8e51 TS |
24 | * Linux networking (i386) ok |
25 | * | |
26 | * Untested: | |
27 | * non-i386 platforms | |
28 | * Windows networking | |
29 | * | |
30 | * References: | |
31 | * | |
32 | * Intel 8255x 10/100 Mbps Ethernet Controller Family | |
33 | * Open Source Software Developer Manual | |
ba19f2de SW |
34 | * |
35 | * TODO: | |
36 | * * PHY emulation should be separated from nic emulation. | |
37 | * Most nic emulations could share the same phy code. | |
38 | * * i82550 is untested. It is programmed like the i82559. | |
39 | * * i82562 is untested. It is programmed like the i82559. | |
40 | * * Power management (i82558 and later) is not implemented. | |
41 | * * Wake-on-LAN is not implemented. | |
663e8e51 TS |
42 | */ |
43 | ||
78728c92 | 44 | #include <stdbool.h> /* bool */ |
663e8e51 | 45 | #include <stddef.h> /* offsetof */ |
87ecb68b PB |
46 | #include "hw.h" |
47 | #include "pci.h" | |
48 | #include "net.h" | |
663e8e51 TS |
49 | #include "eeprom93xx.h" |
50 | ||
51 | /* Common declarations for all PCI devices. */ | |
52 | ||
663e8e51 TS |
53 | #define PCI_CONFIG_8(offset, value) \ |
54 | (pci_conf[offset] = (value)) | |
55 | #define PCI_CONFIG_16(offset, value) \ | |
56 | (*(uint16_t *)&pci_conf[offset] = cpu_to_le16(value)) | |
57 | #define PCI_CONFIG_32(offset, value) \ | |
58 | (*(uint32_t *)&pci_conf[offset] = cpu_to_le32(value)) | |
59 | ||
60 | #define KiB 1024 | |
61 | ||
aac443e6 | 62 | /* Debug EEPRO100 card. */ |
ce0e58b3 SW |
63 | #if 0 |
64 | # define DEBUG_EEPRO100 | |
65 | #endif | |
663e8e51 TS |
66 | |
67 | #ifdef DEBUG_EEPRO100 | |
001faf32 | 68 | #define logout(fmt, ...) fprintf(stderr, "EE100\t%-24s" fmt, __func__, ## __VA_ARGS__) |
663e8e51 | 69 | #else |
001faf32 | 70 | #define logout(fmt, ...) ((void)0) |
663e8e51 TS |
71 | #endif |
72 | ||
73 | /* Set flags to 0 to disable debug output. */ | |
aac443e6 SW |
74 | #define INT 1 /* interrupt related actions */ |
75 | #define MDI 1 /* mdi related actions */ | |
76 | #define OTHER 1 | |
77 | #define RXTX 1 | |
78 | #define EEPROM 1 /* eeprom related actions */ | |
663e8e51 TS |
79 | |
80 | #define TRACE(flag, command) ((flag) ? (command) : (void)0) | |
81 | ||
7f1e9d4e | 82 | #define missing(text) fprintf(stderr, "eepro100: feature is missing in this emulation: " text "\n") |
663e8e51 TS |
83 | |
84 | #define MAX_ETH_FRAME_SIZE 1514 | |
85 | ||
86 | /* This driver supports several different devices which are declared here. */ | |
c4c270e2 | 87 | #define i82550 0x82550 |
663e8e51 | 88 | #define i82551 0x82551 |
c4c270e2 | 89 | #define i82557A 0x82557a |
663e8e51 TS |
90 | #define i82557B 0x82557b |
91 | #define i82557C 0x82557c | |
c4c270e2 | 92 | #define i82558A 0x82558a |
663e8e51 | 93 | #define i82558B 0x82558b |
c4c270e2 SW |
94 | #define i82559A 0x82559a |
95 | #define i82559B 0x82559b | |
663e8e51 TS |
96 | #define i82559C 0x82559c |
97 | #define i82559ER 0x82559e | |
98 | #define i82562 0x82562 | |
99 | ||
aac443e6 | 100 | /* Use 64 word EEPROM. TODO: could be a runtime option. */ |
663e8e51 TS |
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 | |
e824012b | 123 | #define RU_ABORT 0x0004 |
663e8e51 TS |
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 | ||
663e8e51 TS |
129 | /* Offsets to the various registers. |
130 | All accesses need not be longword aligned. */ | |
131 | enum speedo_offsets { | |
0908bba1 | 132 | SCBStatus = 0, /* Status Word. */ |
663e8e51 TS |
133 | SCBAck = 1, |
134 | SCBCmd = 2, /* Rx/Command Unit command and status. */ | |
135 | SCBIntmask = 3, | |
136 | SCBPointer = 4, /* General purpose pointer. */ | |
137 | SCBPort = 8, /* Misc. commands and operands. */ | |
0908bba1 SW |
138 | SCBflash = 12, /* Flash memory control. */ |
139 | SCBeeprom = 14, /* EEPROM control. */ | |
663e8e51 TS |
140 | SCBCtrlMDI = 16, /* MDI interface control. */ |
141 | SCBEarlyRx = 20, /* Early receive byte count. */ | |
0908bba1 SW |
142 | SCBFlow = 24, /* Flow Control. */ |
143 | SCBpmdr = 27, /* Power Management Driver. */ | |
144 | SCBgctrl = 28, /* General Control. */ | |
145 | SCBgstat = 29, /* General Status. */ | |
663e8e51 TS |
146 | }; |
147 | ||
148 | /* A speedo3 transmit buffer descriptor with two buffers... */ | |
149 | typedef struct { | |
150 | uint16_t status; | |
151 | uint16_t command; | |
152 | uint32_t link; /* void * */ | |
7b8737de | 153 | uint32_t tbd_array_addr; /* transmit buffer descriptor array address. */ |
663e8e51 TS |
154 | uint16_t tcb_bytes; /* transmit command block byte count (in lower 14 bits */ |
155 | uint8_t tx_threshold; /* transmit threshold */ | |
156 | uint8_t tbd_count; /* TBD number */ | |
e7493b25 SW |
157 | #if 0 |
158 | /* This constitutes two "TBD" entries: hdr and data */ | |
159 | uint32_t tx_buf_addr0; /* void *, header of frame to be transmitted. */ | |
160 | int32_t tx_buf_size0; /* Length of Tx hdr. */ | |
161 | uint32_t tx_buf_addr1; /* void *, data to be transmitted. */ | |
162 | int32_t tx_buf_size1; /* Length of Tx data. */ | |
163 | #endif | |
c227f099 | 164 | } eepro100_tx_t; |
663e8e51 TS |
165 | |
166 | /* Receive frame descriptor. */ | |
167 | typedef struct { | |
168 | int16_t status; | |
169 | uint16_t command; | |
170 | uint32_t link; /* struct RxFD * */ | |
171 | uint32_t rx_buf_addr; /* void * */ | |
172 | uint16_t count; | |
173 | uint16_t size; | |
174 | char packet[MAX_ETH_FRAME_SIZE + 4]; | |
c227f099 | 175 | } eepro100_rx_t; |
663e8e51 | 176 | |
ced5296a SW |
177 | typedef enum { |
178 | COMMAND_EL = BIT(15), | |
179 | COMMAND_S = BIT(14), | |
180 | COMMAND_I = BIT(13), | |
181 | COMMAND_NC = BIT(4), | |
182 | COMMAND_SF = BIT(3), | |
183 | COMMAND_CMD = BITS(2, 0), | |
184 | } scb_command_bit; | |
185 | ||
186 | typedef enum { | |
187 | STATUS_C = BIT(15), | |
188 | STATUS_OK = BIT(13), | |
189 | } scb_status_bit; | |
190 | ||
663e8e51 TS |
191 | typedef struct { |
192 | uint32_t tx_good_frames, tx_max_collisions, tx_late_collisions, | |
cc02c66c SW |
193 | tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions, |
194 | tx_multiple_collisions, tx_total_collisions; | |
663e8e51 | 195 | uint32_t rx_good_frames, rx_crc_errors, rx_alignment_errors, |
cc02c66c SW |
196 | rx_resource_errors, rx_overrun_errors, rx_cdt_errors, |
197 | rx_short_frame_errors; | |
663e8e51 TS |
198 | uint32_t fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported; |
199 | uint16_t xmt_tco_frames, rcv_tco_frames; | |
ba42b646 SW |
200 | /* TODO: i82559 has six reserved statistics but a total of 24 dwords. */ |
201 | uint32_t reserved[4]; | |
c227f099 | 202 | } eepro100_stats_t; |
663e8e51 TS |
203 | |
204 | typedef enum { | |
205 | cu_idle = 0, | |
206 | cu_suspended = 1, | |
207 | cu_active = 2, | |
208 | cu_lpq_active = 2, | |
209 | cu_hqp_active = 3 | |
c227f099 | 210 | } cu_state_t; |
663e8e51 TS |
211 | |
212 | typedef enum { | |
213 | ru_idle = 0, | |
214 | ru_suspended = 1, | |
215 | ru_no_resources = 2, | |
216 | ru_ready = 4 | |
c227f099 | 217 | } ru_state_t; |
663e8e51 | 218 | |
663e8e51 | 219 | typedef struct { |
273a2142 | 220 | PCIDevice dev; |
663e8e51 TS |
221 | uint8_t mult[8]; /* multicast mask array */ |
222 | int mmio_index; | |
e00e365e | 223 | NICState *nic; |
508ef936 | 224 | NICConf conf; |
663e8e51 TS |
225 | uint8_t scb_stat; /* SCB stat/ack byte */ |
226 | uint8_t int_stat; /* PCI interrupt status */ | |
3706c43f | 227 | /* region must not be saved by nic_save. */ |
663e8e51 | 228 | uint32_t region[3]; /* PCI region addresses */ |
663e8e51 | 229 | uint16_t mdimem[32]; |
c227f099 | 230 | eeprom_t *eeprom; |
663e8e51 TS |
231 | uint32_t device; /* device variant */ |
232 | uint32_t pointer; | |
233 | /* (cu_base + cu_offset) address the next command block in the command block list. */ | |
234 | uint32_t cu_base; /* CU base address */ | |
235 | uint32_t cu_offset; /* CU address offset */ | |
236 | /* (ru_base + ru_offset) address the RFD in the Receive Frame Area. */ | |
237 | uint32_t ru_base; /* RU base address */ | |
238 | uint32_t ru_offset; /* RU address offset */ | |
c227f099 | 239 | uint32_t statsaddr; /* pointer to eepro100_stats_t */ |
ba42b646 | 240 | |
f3a52e50 SW |
241 | /* Temporary status information (no need to save these values), |
242 | * used while processing CU commands. */ | |
243 | eepro100_tx_t tx; /* transmit buffer descriptor */ | |
244 | uint32_t cb_address; /* = cu_base + cu_offset */ | |
245 | ||
ba42b646 SW |
246 | /* Statistical counters. Also used for wake-up packet (i82559). */ |
247 | eepro100_stats_t statistics; | |
248 | ||
663e8e51 TS |
249 | #if 0 |
250 | uint16_t status; | |
251 | #endif | |
252 | ||
253 | /* Configuration bytes. */ | |
254 | uint8_t configuration[22]; | |
255 | ||
256 | /* Data in mem is always in the byte order of the controller (le). */ | |
257 | uint8_t mem[PCI_MEM_SIZE]; | |
151b2986 JQ |
258 | /* vmstate for each particular nic */ |
259 | VMStateDescription *vmstate; | |
ba42b646 SW |
260 | |
261 | /* Quasi static device properties (no need to save them). */ | |
262 | uint16_t stats_size; | |
263 | bool has_extended_tcb_support; | |
663e8e51 TS |
264 | } EEPRO100State; |
265 | ||
6cded3a4 SW |
266 | /* Word indices in EEPROM. */ |
267 | typedef enum { | |
268 | EEPROM_CNFG_MDIX = 0x03, | |
269 | EEPROM_ID = 0x05, | |
270 | EEPROM_PHY_ID = 0x06, | |
271 | EEPROM_VENDOR_ID = 0x0c, | |
272 | EEPROM_CONFIG_ASF = 0x0d, | |
273 | EEPROM_DEVICE_ID = 0x23, | |
274 | EEPROM_SMBUS_ADDR = 0x90, | |
275 | } EEPROMOffset; | |
276 | ||
b1e87018 SW |
277 | /* Bit values for EEPROM ID word. */ |
278 | typedef enum { | |
279 | EEPROM_ID_MDM = BIT(0), /* Modem */ | |
280 | EEPROM_ID_STB = BIT(1), /* Standby Enable */ | |
281 | EEPROM_ID_WMR = BIT(2), /* ??? */ | |
282 | EEPROM_ID_WOL = BIT(5), /* Wake on LAN */ | |
283 | EEPROM_ID_DPD = BIT(6), /* Deep Power Down */ | |
284 | EEPROM_ID_ALT = BIT(7), /* */ | |
285 | /* BITS(10, 8) device revision */ | |
286 | EEPROM_ID_BD = BIT(11), /* boot disable */ | |
287 | EEPROM_ID_ID = BIT(13), /* id bit */ | |
288 | /* BITS(15, 14) signature */ | |
289 | EEPROM_ID_VALID = BIT(14), /* signature for valid eeprom */ | |
290 | } eeprom_id_bit; | |
291 | ||
663e8e51 TS |
292 | /* Default values for MDI (PHY) registers */ |
293 | static const uint16_t eepro100_mdi_default[] = { | |
294 | /* MDI Registers 0 - 6, 7 */ | |
295 | 0x3000, 0x780d, 0x02a8, 0x0154, 0x05e1, 0x0000, 0x0000, 0x0000, | |
296 | /* MDI Registers 8 - 15 */ | |
297 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
298 | /* MDI Registers 16 - 31 */ | |
299 | 0x0003, 0x0000, 0x0001, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
300 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
301 | }; | |
302 | ||
303 | /* Readonly mask for MDI (PHY) registers */ | |
304 | static const uint16_t eepro100_mdi_mask[] = { | |
305 | 0x0000, 0xffff, 0xffff, 0xffff, 0xc01f, 0xffff, 0xffff, 0x0000, | |
306 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
307 | 0x0fff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, | |
308 | 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
309 | }; | |
310 | ||
ba42b646 SW |
311 | /* XXX: optimize */ |
312 | static void stl_le_phys(target_phys_addr_t addr, uint32_t val) | |
313 | { | |
314 | val = cpu_to_le32(val); | |
315 | cpu_physical_memory_write(addr, (const uint8_t *)&val, sizeof(val)); | |
316 | } | |
317 | ||
663e8e51 TS |
318 | #define POLYNOMIAL 0x04c11db6 |
319 | ||
320 | /* From FreeBSD */ | |
321 | /* XXX: optimize */ | |
7b8737de | 322 | static unsigned compute_mcast_idx(const uint8_t * ep) |
663e8e51 TS |
323 | { |
324 | uint32_t crc; | |
325 | int carry, i, j; | |
326 | uint8_t b; | |
327 | ||
328 | crc = 0xffffffff; | |
329 | for (i = 0; i < 6; i++) { | |
330 | b = *ep++; | |
331 | for (j = 0; j < 8; j++) { | |
332 | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); | |
333 | crc <<= 1; | |
334 | b >>= 1; | |
aac443e6 | 335 | if (carry) { |
663e8e51 | 336 | crc = ((crc ^ POLYNOMIAL) | carry); |
aac443e6 | 337 | } |
663e8e51 TS |
338 | } |
339 | } | |
7b8737de | 340 | return (crc & BITS(7, 2)) >> 2; |
663e8e51 TS |
341 | } |
342 | ||
343 | #if defined(DEBUG_EEPRO100) | |
344 | static const char *nic_dump(const uint8_t * buf, unsigned size) | |
345 | { | |
346 | static char dump[3 * 16 + 1]; | |
347 | char *p = &dump[0]; | |
aac443e6 | 348 | if (size > 16) { |
663e8e51 | 349 | size = 16; |
aac443e6 | 350 | } |
663e8e51 TS |
351 | while (size-- > 0) { |
352 | p += sprintf(p, " %02x", *buf++); | |
353 | } | |
354 | return dump; | |
355 | } | |
356 | #endif /* DEBUG_EEPRO100 */ | |
357 | ||
358 | enum scb_stat_ack { | |
359 | stat_ack_not_ours = 0x00, | |
360 | stat_ack_sw_gen = 0x04, | |
361 | stat_ack_rnr = 0x10, | |
362 | stat_ack_cu_idle = 0x20, | |
363 | stat_ack_frame_rx = 0x40, | |
364 | stat_ack_cu_cmd_done = 0x80, | |
365 | stat_ack_not_present = 0xFF, | |
366 | stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx), | |
367 | stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done), | |
368 | }; | |
369 | ||
370 | static void disable_interrupt(EEPRO100State * s) | |
371 | { | |
372 | if (s->int_stat) { | |
aac443e6 | 373 | TRACE(INT, logout("interrupt disabled\n")); |
273a2142 | 374 | qemu_irq_lower(s->dev.irq[0]); |
663e8e51 TS |
375 | s->int_stat = 0; |
376 | } | |
377 | } | |
378 | ||
379 | static void enable_interrupt(EEPRO100State * s) | |
380 | { | |
381 | if (!s->int_stat) { | |
aac443e6 | 382 | TRACE(INT, logout("interrupt enabled\n")); |
273a2142 | 383 | qemu_irq_raise(s->dev.irq[0]); |
663e8e51 TS |
384 | s->int_stat = 1; |
385 | } | |
386 | } | |
387 | ||
388 | static void eepro100_acknowledge(EEPRO100State * s) | |
389 | { | |
390 | s->scb_stat &= ~s->mem[SCBAck]; | |
391 | s->mem[SCBAck] = s->scb_stat; | |
392 | if (s->scb_stat == 0) { | |
393 | disable_interrupt(s); | |
394 | } | |
395 | } | |
396 | ||
e715c8e8 | 397 | static void eepro100_interrupt(EEPRO100State * s, uint8_t status) |
663e8e51 TS |
398 | { |
399 | uint8_t mask = ~s->mem[SCBIntmask]; | |
e715c8e8 SW |
400 | s->mem[SCBAck] |= status; |
401 | status = s->scb_stat = s->mem[SCBAck]; | |
402 | status &= (mask | 0x0f); | |
e7493b25 SW |
403 | #if 0 |
404 | status &= (~s->mem[SCBIntmask] | 0x0xf); | |
405 | #endif | |
e715c8e8 | 406 | if (status && (mask & 0x01)) { |
663e8e51 TS |
407 | /* SCB mask and SCB Bit M do not disable interrupt. */ |
408 | enable_interrupt(s); | |
409 | } else if (s->int_stat) { | |
410 | disable_interrupt(s); | |
411 | } | |
412 | } | |
413 | ||
414 | static void eepro100_cx_interrupt(EEPRO100State * s) | |
415 | { | |
416 | /* CU completed action command. */ | |
417 | /* Transmit not ok (82557 only, not in emulation). */ | |
418 | eepro100_interrupt(s, 0x80); | |
419 | } | |
420 | ||
421 | static void eepro100_cna_interrupt(EEPRO100State * s) | |
422 | { | |
423 | /* CU left the active state. */ | |
424 | eepro100_interrupt(s, 0x20); | |
425 | } | |
426 | ||
427 | static void eepro100_fr_interrupt(EEPRO100State * s) | |
428 | { | |
429 | /* RU received a complete frame. */ | |
430 | eepro100_interrupt(s, 0x40); | |
431 | } | |
432 | ||
663e8e51 TS |
433 | static void eepro100_rnr_interrupt(EEPRO100State * s) |
434 | { | |
435 | /* RU is not ready. */ | |
436 | eepro100_interrupt(s, 0x10); | |
437 | } | |
663e8e51 TS |
438 | |
439 | static void eepro100_mdi_interrupt(EEPRO100State * s) | |
440 | { | |
441 | /* MDI completed read or write cycle. */ | |
442 | eepro100_interrupt(s, 0x08); | |
443 | } | |
444 | ||
445 | static void eepro100_swi_interrupt(EEPRO100State * s) | |
446 | { | |
447 | /* Software has requested an interrupt. */ | |
448 | eepro100_interrupt(s, 0x04); | |
449 | } | |
450 | ||
451 | #if 0 | |
452 | static void eepro100_fcp_interrupt(EEPRO100State * s) | |
453 | { | |
454 | /* Flow control pause interrupt (82558 and later). */ | |
455 | eepro100_interrupt(s, 0x01); | |
456 | } | |
457 | #endif | |
458 | ||
459 | static void pci_reset(EEPRO100State * s) | |
460 | { | |
461 | uint32_t device = s->device; | |
273a2142 | 462 | uint8_t *pci_conf = s->dev.config; |
ba42b646 | 463 | bool power_management = 1; |
663e8e51 | 464 | |
aac443e6 | 465 | TRACE(OTHER, logout("%p\n", s)); |
663e8e51 TS |
466 | |
467 | /* PCI Vendor ID */ | |
deb54399 | 468 | pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL); |
d6fd1e66 | 469 | /* PCI Device ID depends on device and is set below. */ |
663e8e51 | 470 | /* PCI Command */ |
508cc6b4 | 471 | /* TODO: this is the default, do not override. */ |
663e8e51 TS |
472 | PCI_CONFIG_16(PCI_COMMAND, 0x0000); |
473 | /* PCI Status */ | |
508cc6b4 | 474 | /* TODO: Value at RST# should be 0. */ |
61702408 | 475 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_FAST_BACK); |
663e8e51 TS |
476 | /* PCI Revision ID */ |
477 | PCI_CONFIG_8(PCI_REVISION_ID, 0x08); | |
508cc6b4 | 478 | /* TODO: this is the default, do not override. */ |
663e8e51 | 479 | /* PCI Class Code */ |
508cc6b4 | 480 | PCI_CONFIG_8(PCI_CLASS_PROG, 0x00); |
173a543b | 481 | pci_config_set_class(pci_conf, PCI_CLASS_NETWORK_ETHERNET); |
663e8e51 TS |
482 | /* PCI Cache Line Size */ |
483 | /* check cache line size!!! */ | |
e7493b25 SW |
484 | #if 0 |
485 | PCI_CONFIG_8(0x0c, 0x00); | |
486 | #endif | |
663e8e51 | 487 | /* PCI Latency Timer */ |
e7493b25 | 488 | PCI_CONFIG_8(PCI_LATENCY_TIMER, 0x20); /* latency timer = 32 clocks */ |
663e8e51 TS |
489 | /* PCI Header Type */ |
490 | /* BIST (built-in self test) */ | |
663e8e51 | 491 | /* Expansion ROM Base Address (depends on boot disable!!!) */ |
508cc6b4 MT |
492 | /* TODO: not needed, set when BAR is registered */ |
493 | PCI_CONFIG_32(PCI_ROM_ADDRESS, PCI_BASE_ADDRESS_SPACE_MEMORY); | |
663e8e51 | 494 | /* Capability Pointer */ |
508cc6b4 MT |
495 | /* TODO: revisions with power_management 1 use this but |
496 | * do not set new capability list bit in status register. */ | |
497 | PCI_CONFIG_8(PCI_CAPABILITY_LIST, 0xdc); | |
aac443e6 | 498 | /* Interrupt Line */ |
663e8e51 | 499 | /* Interrupt Pin */ |
508cc6b4 | 500 | /* TODO: RST# value should be 0 */ |
e7493b25 | 501 | PCI_CONFIG_8(PCI_INTERRUPT_PIN, 1); /* interrupt pin 0 */ |
663e8e51 | 502 | /* Minimum Grant */ |
508cc6b4 | 503 | PCI_CONFIG_8(PCI_MIN_GNT, 0x08); |
663e8e51 | 504 | /* Maximum Latency */ |
508cc6b4 | 505 | PCI_CONFIG_8(PCI_MAX_LAT, 0x18); |
663e8e51 TS |
506 | |
507 | switch (device) { | |
ba42b646 | 508 | case i82550: |
e7493b25 | 509 | /* TODO: check device id. */ |
ba42b646 SW |
510 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82551IT); |
511 | /* Revision ID: 0x0c, 0x0d, 0x0e. */ | |
512 | PCI_CONFIG_8(PCI_REVISION_ID, 0x0e); | |
e7493b25 | 513 | /* TODO: check size of statistical counters. */ |
ba42b646 | 514 | s->stats_size = 80; |
e7493b25 | 515 | /* TODO: check extended tcb support. */ |
ba42b646 SW |
516 | s->has_extended_tcb_support = 1; |
517 | break; | |
663e8e51 | 518 | case i82551: |
d6fd1e66 | 519 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82551IT); |
ba42b646 | 520 | /* Revision ID: 0x0f, 0x10. */ |
663e8e51 | 521 | PCI_CONFIG_8(PCI_REVISION_ID, 0x0f); |
e7493b25 | 522 | /* TODO: check size of statistical counters. */ |
ba42b646 SW |
523 | s->stats_size = 80; |
524 | s->has_extended_tcb_support = 1; | |
525 | break; | |
526 | case i82557A: | |
527 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); | |
528 | PCI_CONFIG_8(PCI_REVISION_ID, 0x01); | |
508cc6b4 | 529 | PCI_CONFIG_8(PCI_CAPABILITY_LIST, 0x00); |
ba42b646 | 530 | power_management = 0; |
663e8e51 TS |
531 | break; |
532 | case i82557B: | |
d6fd1e66 | 533 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); |
663e8e51 | 534 | PCI_CONFIG_8(PCI_REVISION_ID, 0x02); |
508cc6b4 | 535 | PCI_CONFIG_8(PCI_CAPABILITY_LIST, 0x00); |
ba42b646 | 536 | power_management = 0; |
663e8e51 TS |
537 | break; |
538 | case i82557C: | |
d6fd1e66 | 539 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); |
663e8e51 | 540 | PCI_CONFIG_8(PCI_REVISION_ID, 0x03); |
508cc6b4 | 541 | PCI_CONFIG_8(PCI_CAPABILITY_LIST, 0x00); |
ba42b646 SW |
542 | power_management = 0; |
543 | break; | |
544 | case i82558A: | |
545 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); | |
508cc6b4 MT |
546 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
547 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
ba42b646 SW |
548 | PCI_CONFIG_8(PCI_REVISION_ID, 0x04); |
549 | s->stats_size = 76; | |
550 | s->has_extended_tcb_support = 1; | |
663e8e51 TS |
551 | break; |
552 | case i82558B: | |
d6fd1e66 | 553 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); |
508cc6b4 MT |
554 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
555 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
663e8e51 | 556 | PCI_CONFIG_8(PCI_REVISION_ID, 0x05); |
ba42b646 SW |
557 | s->stats_size = 76; |
558 | s->has_extended_tcb_support = 1; | |
559 | break; | |
560 | case i82559A: | |
561 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); | |
508cc6b4 MT |
562 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
563 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
ba42b646 SW |
564 | PCI_CONFIG_8(PCI_REVISION_ID, 0x06); |
565 | s->stats_size = 80; | |
566 | s->has_extended_tcb_support = 1; | |
567 | break; | |
568 | case i82559B: | |
569 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); | |
508cc6b4 MT |
570 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
571 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
ba42b646 SW |
572 | PCI_CONFIG_8(PCI_REVISION_ID, 0x07); |
573 | s->stats_size = 80; | |
574 | s->has_extended_tcb_support = 1; | |
663e8e51 TS |
575 | break; |
576 | case i82559C: | |
d6fd1e66 | 577 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82557); |
508cc6b4 MT |
578 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
579 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
ba42b646 | 580 | PCI_CONFIG_8(PCI_REVISION_ID, 0x08); |
e7493b25 | 581 | /* TODO: Windows wants revision id 0x0c. */ |
ba42b646 SW |
582 | PCI_CONFIG_8(PCI_REVISION_ID, 0x0c); |
583 | #if EEPROM_SIZE > 0 | |
584 | PCI_CONFIG_16(PCI_SUBSYSTEM_VENDOR_ID, 0x8086); | |
585 | PCI_CONFIG_16(PCI_SUBSYSTEM_ID, 0x0040); | |
586 | #endif | |
587 | s->stats_size = 80; | |
588 | s->has_extended_tcb_support = 1; | |
663e8e51 TS |
589 | break; |
590 | case i82559ER: | |
d6fd1e66 | 591 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82551IT); |
508cc6b4 MT |
592 | PCI_CONFIG_16(PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM | |
593 | PCI_STATUS_FAST_BACK | PCI_STATUS_CAP_LIST); | |
663e8e51 | 594 | PCI_CONFIG_8(PCI_REVISION_ID, 0x09); |
ba42b646 SW |
595 | s->stats_size = 80; |
596 | s->has_extended_tcb_support = 1; | |
597 | break; | |
598 | case i82562: | |
e7493b25 | 599 | /* TODO: check device id. */ |
ba42b646 SW |
600 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82551IT); |
601 | /* TODO: wrong revision id. */ | |
602 | PCI_CONFIG_8(PCI_REVISION_ID, 0x0e); | |
603 | s->stats_size = 80; | |
604 | s->has_extended_tcb_support = 1; | |
663e8e51 | 605 | break; |
663e8e51 TS |
606 | default: |
607 | logout("Device %X is undefined!\n", device); | |
608 | } | |
609 | ||
ba42b646 SW |
610 | s->configuration[6] |= BIT(5); |
611 | ||
612 | if (s->stats_size == 80) { | |
613 | /* TODO: check TCO Statistical Counters bit. Documentation not clear. */ | |
614 | if (s->configuration[6] & BIT(2)) { | |
615 | /* TCO statistical counters. */ | |
616 | assert(s->configuration[6] & BIT(5)); | |
617 | } else { | |
618 | if (s->configuration[6] & BIT(5)) { | |
619 | /* No extended statistical counters, i82557 compatible. */ | |
620 | s->stats_size = 64; | |
621 | } else { | |
622 | /* i82558 compatible. */ | |
623 | s->stats_size = 76; | |
624 | } | |
625 | } | |
626 | } else { | |
627 | if (s->configuration[6] & BIT(5)) { | |
628 | /* No extended statistical counters. */ | |
629 | s->stats_size = 64; | |
630 | } | |
631 | } | |
632 | assert(s->stats_size > 0 && s->stats_size <= sizeof(s->statistics)); | |
633 | ||
634 | if (power_management) { | |
635 | /* Power Management Capabilities */ | |
636 | PCI_CONFIG_8(0xdc, 0x01); | |
637 | /* Next Item Pointer */ | |
638 | /* Capability ID */ | |
639 | PCI_CONFIG_16(0xde, 0x7e21); | |
640 | /* TODO: Power Management Control / Status. */ | |
641 | /* TODO: Ethernet Power Consumption Registers (i82559 and later). */ | |
642 | } | |
643 | ||
644 | #if EEPROM_SIZE > 0 | |
663e8e51 | 645 | if (device == i82557C || device == i82558B || device == i82559C) { |
e7493b25 SW |
646 | /* |
647 | TODO: get vendor id from EEPROM for i82557C or later. | |
648 | TODO: get device id from EEPROM for i82557C or later. | |
649 | TODO: status bit 4 can be disabled by EEPROM for i82558, i82559. | |
650 | TODO: header type is determined by EEPROM for i82559. | |
651 | TODO: get subsystem id from EEPROM for i82557C or later. | |
652 | TODO: get subsystem vendor id from EEPROM for i82557C or later. | |
653 | TODO: exp. rom baddr depends on a bit in EEPROM for i82558 or later. | |
654 | TODO: capability pointer depends on EEPROM for i82558. | |
655 | */ | |
663e8e51 TS |
656 | logout("Get device id and revision from EEPROM!!!\n"); |
657 | } | |
ba42b646 | 658 | #endif /* EEPROM_SIZE > 0 */ |
663e8e51 TS |
659 | } |
660 | ||
661 | static void nic_selective_reset(EEPRO100State * s) | |
662 | { | |
663 | size_t i; | |
664 | uint16_t *eeprom_contents = eeprom93xx_data(s->eeprom); | |
e7493b25 SW |
665 | #if 0 |
666 | eeprom93xx_reset(s->eeprom); | |
667 | #endif | |
508ef936 | 668 | memcpy(eeprom_contents, s->conf.macaddr.a, 6); |
b1e87018 | 669 | eeprom_contents[EEPROM_ID] = EEPROM_ID_VALID; |
f4e94dfe RD |
670 | if (s->device == i82557B || s->device == i82557C) |
671 | eeprom_contents[5] = 0x0100; | |
6cded3a4 | 672 | eeprom_contents[EEPROM_PHY_ID] = 1; |
663e8e51 TS |
673 | uint16_t sum = 0; |
674 | for (i = 0; i < EEPROM_SIZE - 1; i++) { | |
675 | sum += eeprom_contents[i]; | |
676 | } | |
677 | eeprom_contents[EEPROM_SIZE - 1] = 0xbaba - sum; | |
aac443e6 | 678 | TRACE(EEPROM, logout("checksum=0x%04x\n", eeprom_contents[EEPROM_SIZE - 1])); |
663e8e51 TS |
679 | |
680 | memset(s->mem, 0, sizeof(s->mem)); | |
681 | uint32_t val = BIT(21); | |
682 | memcpy(&s->mem[SCBCtrlMDI], &val, sizeof(val)); | |
683 | ||
684 | assert(sizeof(s->mdimem) == sizeof(eepro100_mdi_default)); | |
685 | memcpy(&s->mdimem[0], &eepro100_mdi_default[0], sizeof(s->mdimem)); | |
686 | } | |
687 | ||
688 | static void nic_reset(void *opaque) | |
689 | { | |
769cf7a5 | 690 | EEPRO100State *s = opaque; |
aac443e6 | 691 | TRACE(OTHER, logout("%p\n", s)); |
7b8737de SW |
692 | /* TODO: Clearing of multicast table for selective reset, too? */ |
693 | memset(&s->mult[0], 0, sizeof(s->mult)); | |
663e8e51 TS |
694 | nic_selective_reset(s); |
695 | } | |
696 | ||
697 | #if defined(DEBUG_EEPRO100) | |
b8f6ba0d | 698 | static const char * const e100_reg[PCI_IO_SIZE / 4] = { |
663e8e51 TS |
699 | "Command/Status", |
700 | "General Pointer", | |
701 | "Port", | |
702 | "EEPROM/Flash Control", | |
703 | "MDI Control", | |
704 | "Receive DMA Byte Count", | |
b8f6ba0d | 705 | "Flow Control", |
663e8e51 TS |
706 | "General Status/Control" |
707 | }; | |
708 | ||
709 | static char *regname(uint32_t addr) | |
710 | { | |
ec169288 | 711 | static char buf[32]; |
663e8e51 | 712 | if (addr < PCI_IO_SIZE) { |
b8f6ba0d | 713 | const char *r = e100_reg[addr / 4]; |
663e8e51 | 714 | if (r != 0) { |
41cbc23c | 715 | snprintf(buf, sizeof(buf), "%s+%u", r, addr % 4); |
663e8e51 | 716 | } else { |
41cbc23c | 717 | snprintf(buf, sizeof(buf), "0x%02x", addr); |
663e8e51 TS |
718 | } |
719 | } else { | |
41cbc23c | 720 | snprintf(buf, sizeof(buf), "??? 0x%08x", addr); |
663e8e51 TS |
721 | } |
722 | return buf; | |
723 | } | |
724 | #endif /* DEBUG_EEPRO100 */ | |
725 | ||
726 | #if 0 | |
727 | static uint16_t eepro100_read_status(EEPRO100State * s) | |
728 | { | |
729 | uint16_t val = s->status; | |
aac443e6 | 730 | TRACE(OTHER, logout("val=0x%04x\n", val)); |
663e8e51 TS |
731 | return val; |
732 | } | |
733 | ||
734 | static void eepro100_write_status(EEPRO100State * s, uint16_t val) | |
735 | { | |
aac443e6 | 736 | TRACE(OTHER, logout("val=0x%04x\n", val)); |
663e8e51 TS |
737 | s->status = val; |
738 | } | |
739 | #endif | |
740 | ||
741 | /***************************************************************************** | |
742 | * | |
743 | * Command emulation. | |
744 | * | |
745 | ****************************************************************************/ | |
746 | ||
747 | #if 0 | |
748 | static uint16_t eepro100_read_command(EEPRO100State * s) | |
749 | { | |
750 | uint16_t val = 0xffff; | |
e7493b25 | 751 | TRACE(OTHER, logout("val=0x%04x\n", val)); |
663e8e51 TS |
752 | return val; |
753 | } | |
754 | #endif | |
755 | ||
756 | /* Commands that can be put in a command list entry. */ | |
757 | enum commands { | |
758 | CmdNOp = 0, | |
759 | CmdIASetup = 1, | |
760 | CmdConfigure = 2, | |
761 | CmdMulticastList = 3, | |
762 | CmdTx = 4, | |
763 | CmdTDR = 5, /* load microcode */ | |
764 | CmdDump = 6, | |
765 | CmdDiagnose = 7, | |
766 | ||
767 | /* And some extra flags: */ | |
768 | CmdSuspend = 0x4000, /* Suspend after completion. */ | |
769 | CmdIntr = 0x2000, /* Interrupt after completion. */ | |
770 | CmdTxFlex = 0x0008, /* Use "Flexible mode" for CmdTx command. */ | |
771 | }; | |
772 | ||
c227f099 | 773 | static cu_state_t get_cu_state(EEPRO100State * s) |
663e8e51 | 774 | { |
ced5296a | 775 | return ((s->mem[SCBStatus] & BITS(7, 6)) >> 6); |
663e8e51 TS |
776 | } |
777 | ||
c227f099 | 778 | static void set_cu_state(EEPRO100State * s, cu_state_t state) |
663e8e51 | 779 | { |
ced5296a | 780 | s->mem[SCBStatus] = (s->mem[SCBStatus] & ~BITS(7, 6)) + (state << 6); |
663e8e51 TS |
781 | } |
782 | ||
c227f099 | 783 | static ru_state_t get_ru_state(EEPRO100State * s) |
663e8e51 | 784 | { |
ced5296a | 785 | return ((s->mem[SCBStatus] & BITS(5, 2)) >> 2); |
663e8e51 TS |
786 | } |
787 | ||
c227f099 | 788 | static void set_ru_state(EEPRO100State * s, ru_state_t state) |
663e8e51 | 789 | { |
ced5296a | 790 | s->mem[SCBStatus] = (s->mem[SCBStatus] & ~BITS(5, 2)) + (state << 2); |
663e8e51 TS |
791 | } |
792 | ||
793 | static void dump_statistics(EEPRO100State * s) | |
794 | { | |
795 | /* Dump statistical data. Most data is never changed by the emulation | |
796 | * and always 0, so we first just copy the whole block and then those | |
797 | * values which really matter. | |
798 | * Number of data should check configuration!!! | |
799 | */ | |
ba42b646 SW |
800 | cpu_physical_memory_write(s->statsaddr, |
801 | (uint8_t *) & s->statistics, s->stats_size); | |
802 | stl_le_phys(s->statsaddr + 0, s->statistics.tx_good_frames); | |
803 | stl_le_phys(s->statsaddr + 36, s->statistics.rx_good_frames); | |
804 | stl_le_phys(s->statsaddr + 48, s->statistics.rx_resource_errors); | |
805 | stl_le_phys(s->statsaddr + 60, s->statistics.rx_short_frame_errors); | |
e7493b25 SW |
806 | #if 0 |
807 | stw_le_phys(s->statsaddr + 76, s->statistics.xmt_tco_frames); | |
808 | stw_le_phys(s->statsaddr + 78, s->statistics.rcv_tco_frames); | |
809 | missing("CU dump statistical counters"); | |
810 | #endif | |
663e8e51 TS |
811 | } |
812 | ||
3d0f4b9b SW |
813 | static void read_cb(EEPRO100State *s) |
814 | { | |
815 | cpu_physical_memory_read(s->cb_address, (uint8_t *) &s->tx, sizeof(s->tx)); | |
816 | s->tx.status = le16_to_cpu(s->tx.status); | |
817 | s->tx.command = le16_to_cpu(s->tx.command); | |
818 | s->tx.link = le32_to_cpu(s->tx.link); | |
819 | s->tx.tbd_array_addr = le32_to_cpu(s->tx.tbd_array_addr); | |
820 | s->tx.tcb_bytes = le16_to_cpu(s->tx.tcb_bytes); | |
821 | } | |
822 | ||
f3a52e50 SW |
823 | static void tx_command(EEPRO100State *s) |
824 | { | |
7b8737de | 825 | uint32_t tbd_array = le32_to_cpu(s->tx.tbd_array_addr); |
f3a52e50 SW |
826 | uint16_t tcb_bytes = (le16_to_cpu(s->tx.tcb_bytes) & 0x3fff); |
827 | /* Sends larger than MAX_ETH_FRAME_SIZE are allowed, up to 2600 bytes. */ | |
828 | uint8_t buf[2600]; | |
829 | uint16_t size = 0; | |
830 | uint32_t tbd_address = s->cb_address + 0x10; | |
831 | TRACE(RXTX, logout | |
832 | ("transmit, TBD array address 0x%08x, TCB byte count 0x%04x, TBD count %u\n", | |
833 | tbd_array, tcb_bytes, s->tx.tbd_count)); | |
834 | ||
835 | if (tcb_bytes > 2600) { | |
836 | logout("TCB byte count too large, using 2600\n"); | |
837 | tcb_bytes = 2600; | |
838 | } | |
839 | if (!((tcb_bytes > 0) || (tbd_array != 0xffffffff))) { | |
840 | logout | |
841 | ("illegal values of TBD array address and TCB byte count!\n"); | |
842 | } | |
843 | assert(tcb_bytes <= sizeof(buf)); | |
844 | while (size < tcb_bytes) { | |
845 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
846 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
e7493b25 SW |
847 | #if 0 |
848 | uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
849 | #endif | |
f3a52e50 SW |
850 | tbd_address += 8; |
851 | TRACE(RXTX, logout | |
852 | ("TBD (simplified mode): buffer address 0x%08x, size 0x%04x\n", | |
853 | tx_buffer_address, tx_buffer_size)); | |
854 | tx_buffer_size = MIN(tx_buffer_size, sizeof(buf) - size); | |
855 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
856 | tx_buffer_size); | |
857 | size += tx_buffer_size; | |
858 | } | |
859 | if (tbd_array == 0xffffffff) { | |
860 | /* Simplified mode. Was already handled by code above. */ | |
861 | } else { | |
862 | /* Flexible mode. */ | |
863 | uint8_t tbd_count = 0; | |
864 | if (s->has_extended_tcb_support && !(s->configuration[6] & BIT(4))) { | |
865 | /* Extended Flexible TCB. */ | |
866 | for (; tbd_count < 2; tbd_count++) { | |
867 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
868 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
869 | uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
870 | tbd_address += 8; | |
871 | TRACE(RXTX, logout | |
872 | ("TBD (extended flexible mode): buffer address 0x%08x, size 0x%04x\n", | |
873 | tx_buffer_address, tx_buffer_size)); | |
874 | tx_buffer_size = MIN(tx_buffer_size, sizeof(buf) - size); | |
875 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
876 | tx_buffer_size); | |
877 | size += tx_buffer_size; | |
878 | if (tx_buffer_el & 1) { | |
879 | break; | |
880 | } | |
881 | } | |
882 | } | |
883 | tbd_address = tbd_array; | |
884 | for (; tbd_count < s->tx.tbd_count; tbd_count++) { | |
885 | uint32_t tx_buffer_address = ldl_phys(tbd_address); | |
886 | uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); | |
887 | uint16_t tx_buffer_el = lduw_phys(tbd_address + 6); | |
888 | tbd_address += 8; | |
889 | TRACE(RXTX, logout | |
890 | ("TBD (flexible mode): buffer address 0x%08x, size 0x%04x\n", | |
891 | tx_buffer_address, tx_buffer_size)); | |
892 | tx_buffer_size = MIN(tx_buffer_size, sizeof(buf) - size); | |
893 | cpu_physical_memory_read(tx_buffer_address, &buf[size], | |
894 | tx_buffer_size); | |
895 | size += tx_buffer_size; | |
896 | if (tx_buffer_el & 1) { | |
897 | break; | |
898 | } | |
899 | } | |
900 | } | |
901 | TRACE(RXTX, logout("%p sending frame, len=%d,%s\n", s, size, nic_dump(buf, size))); | |
902 | qemu_send_packet(&s->nic->nc, buf, size); | |
903 | s->statistics.tx_good_frames++; | |
904 | /* Transmit with bad status would raise an CX/TNO interrupt. | |
905 | * (82557 only). Emulation never has bad status. */ | |
e7493b25 SW |
906 | #if 0 |
907 | eepro100_cx_interrupt(s); | |
908 | #endif | |
f3a52e50 SW |
909 | } |
910 | ||
7b8737de SW |
911 | static void set_multicast_list(EEPRO100State *s) |
912 | { | |
913 | uint16_t multicast_count = s->tx.tbd_array_addr & BITS(13, 0); | |
914 | uint16_t i; | |
915 | memset(&s->mult[0], 0, sizeof(s->mult)); | |
916 | TRACE(OTHER, logout("multicast list, multicast count = %u\n", multicast_count)); | |
917 | for (i = 0; i < multicast_count; i += 6) { | |
918 | uint8_t multicast_addr[6]; | |
919 | cpu_physical_memory_read(s->cb_address + 10 + i, multicast_addr, 6); | |
920 | TRACE(OTHER, logout("multicast entry %s\n", nic_dump(multicast_addr, 6))); | |
921 | unsigned mcast_idx = compute_mcast_idx(multicast_addr); | |
922 | assert(mcast_idx < 64); | |
923 | s->mult[mcast_idx >> 3] |= (1 << (mcast_idx & 7)); | |
924 | } | |
925 | } | |
926 | ||
5fa9a0ae | 927 | static void action_command(EEPRO100State *s) |
663e8e51 | 928 | { |
5fa9a0ae | 929 | for (;;) { |
3d0f4b9b SW |
930 | bool bit_el; |
931 | bool bit_s; | |
932 | bool bit_i; | |
933 | bool bit_nc; | |
7f1e9d4e | 934 | bool success = true; |
3d0f4b9b SW |
935 | s->cb_address = s->cu_base + s->cu_offset; |
936 | read_cb(s); | |
937 | bit_el = ((s->tx.command & COMMAND_EL) != 0); | |
938 | bit_s = ((s->tx.command & COMMAND_S) != 0); | |
939 | bit_i = ((s->tx.command & COMMAND_I) != 0); | |
940 | bit_nc = ((s->tx.command & COMMAND_NC) != 0); | |
941 | #if 0 | |
942 | bool bit_sf = ((s->tx.command & COMMAND_SF) != 0); | |
943 | #endif | |
944 | s->cu_offset = s->tx.link; | |
945 | TRACE(OTHER, | |
946 | logout("val=(cu start), status=0x%04x, command=0x%04x, link=0x%08x\n", | |
947 | s->tx.status, s->tx.command, s->tx.link)); | |
948 | switch (s->tx.command & COMMAND_CMD) { | |
663e8e51 TS |
949 | case CmdNOp: |
950 | /* Do nothing. */ | |
951 | break; | |
952 | case CmdIASetup: | |
f3a52e50 | 953 | cpu_physical_memory_read(s->cb_address + 8, &s->conf.macaddr.a[0], 6); |
ce0e58b3 | 954 | TRACE(OTHER, logout("macaddr: %s\n", nic_dump(&s->conf.macaddr.a[0], 6))); |
663e8e51 TS |
955 | break; |
956 | case CmdConfigure: | |
f3a52e50 | 957 | cpu_physical_memory_read(s->cb_address + 8, &s->configuration[0], |
663e8e51 | 958 | sizeof(s->configuration)); |
aac443e6 | 959 | TRACE(OTHER, logout("configuration: %s\n", nic_dump(&s->configuration[0], 16))); |
663e8e51 TS |
960 | break; |
961 | case CmdMulticastList: | |
7b8737de | 962 | set_multicast_list(s); |
663e8e51 TS |
963 | break; |
964 | case CmdTx: | |
7f1e9d4e KW |
965 | if (bit_nc) { |
966 | missing("CmdTx: NC = 0"); | |
967 | success = false; | |
968 | break; | |
969 | } | |
f3a52e50 | 970 | tx_command(s); |
663e8e51 TS |
971 | break; |
972 | case CmdTDR: | |
aac443e6 | 973 | TRACE(OTHER, logout("load microcode\n")); |
663e8e51 TS |
974 | /* Starting with offset 8, the command contains |
975 | * 64 dwords microcode which we just ignore here. */ | |
976 | break; | |
f80a7fc3 SW |
977 | case CmdDiagnose: |
978 | TRACE(OTHER, logout("diagnose\n")); | |
979 | /* Make sure error flag is not set. */ | |
980 | s->tx.status = 0; | |
981 | break; | |
663e8e51 TS |
982 | default: |
983 | missing("undefined command"); | |
7f1e9d4e KW |
984 | success = false; |
985 | break; | |
663e8e51 | 986 | } |
7f1e9d4e | 987 | /* Write new status. */ |
ec1d02d8 | 988 | stw_phys(s->cb_address, s->tx.status | STATUS_C | (success ? STATUS_OK : 0)); |
663e8e51 TS |
989 | if (bit_i) { |
990 | /* CU completed action. */ | |
991 | eepro100_cx_interrupt(s); | |
992 | } | |
993 | if (bit_el) { | |
aac443e6 | 994 | /* CU becomes idle. Terminate command loop. */ |
663e8e51 TS |
995 | set_cu_state(s, cu_idle); |
996 | eepro100_cna_interrupt(s); | |
5fa9a0ae | 997 | break; |
663e8e51 | 998 | } else if (bit_s) { |
5fa9a0ae | 999 | /* CU becomes suspended. Terminate command loop. */ |
663e8e51 TS |
1000 | set_cu_state(s, cu_suspended); |
1001 | eepro100_cna_interrupt(s); | |
5fa9a0ae | 1002 | break; |
663e8e51 TS |
1003 | } else { |
1004 | /* More entries in list. */ | |
aac443e6 | 1005 | TRACE(OTHER, logout("CU list with at least one more entry\n")); |
663e8e51 | 1006 | } |
5fa9a0ae SW |
1007 | } |
1008 | TRACE(OTHER, logout("CU list empty\n")); | |
1009 | /* List is empty. Now CU is idle or suspended. */ | |
1010 | } | |
1011 | ||
1012 | static void eepro100_cu_command(EEPRO100State * s, uint8_t val) | |
1013 | { | |
cb25a3fb | 1014 | cu_state_t cu_state; |
5fa9a0ae SW |
1015 | switch (val) { |
1016 | case CU_NOP: | |
1017 | /* No operation. */ | |
1018 | break; | |
1019 | case CU_START: | |
cb25a3fb SW |
1020 | cu_state = get_cu_state(s); |
1021 | if (cu_state != cu_idle && cu_state != cu_suspended) { | |
1022 | /* Intel documentation says that CU must be idle or suspended | |
1023 | * for the CU start command. */ | |
1024 | logout("unexpected CU state is %u\n", cu_state); | |
5fa9a0ae SW |
1025 | } |
1026 | set_cu_state(s, cu_active); | |
1027 | s->cu_offset = s->pointer; | |
1028 | action_command(s); | |
663e8e51 TS |
1029 | break; |
1030 | case CU_RESUME: | |
1031 | if (get_cu_state(s) != cu_suspended) { | |
1032 | logout("bad CU resume from CU state %u\n", get_cu_state(s)); | |
1033 | /* Workaround for bad Linux eepro100 driver which resumes | |
1034 | * from idle state. */ | |
e7493b25 SW |
1035 | #if 0 |
1036 | missing("cu resume"); | |
1037 | #endif | |
663e8e51 TS |
1038 | set_cu_state(s, cu_suspended); |
1039 | } | |
1040 | if (get_cu_state(s) == cu_suspended) { | |
aac443e6 | 1041 | TRACE(OTHER, logout("CU resuming\n")); |
663e8e51 | 1042 | set_cu_state(s, cu_active); |
5fa9a0ae | 1043 | action_command(s); |
663e8e51 TS |
1044 | } |
1045 | break; | |
1046 | case CU_STATSADDR: | |
1047 | /* Load dump counters address. */ | |
1048 | s->statsaddr = s->pointer; | |
aac443e6 | 1049 | TRACE(OTHER, logout("val=0x%02x (status address)\n", val)); |
663e8e51 TS |
1050 | break; |
1051 | case CU_SHOWSTATS: | |
1052 | /* Dump statistical counters. */ | |
aac443e6 | 1053 | TRACE(OTHER, logout("val=0x%02x (dump stats)\n", val)); |
663e8e51 | 1054 | dump_statistics(s); |
ba42b646 | 1055 | stl_le_phys(s->statsaddr + s->stats_size, 0xa005); |
663e8e51 TS |
1056 | break; |
1057 | case CU_CMD_BASE: | |
1058 | /* Load CU base. */ | |
aac443e6 | 1059 | TRACE(OTHER, logout("val=0x%02x (CU base address)\n", val)); |
663e8e51 TS |
1060 | s->cu_base = s->pointer; |
1061 | break; | |
1062 | case CU_DUMPSTATS: | |
1063 | /* Dump and reset statistical counters. */ | |
aac443e6 | 1064 | TRACE(OTHER, logout("val=0x%02x (dump stats and reset)\n", val)); |
663e8e51 | 1065 | dump_statistics(s); |
ba42b646 | 1066 | stl_le_phys(s->statsaddr + s->stats_size, 0xa007); |
663e8e51 TS |
1067 | memset(&s->statistics, 0, sizeof(s->statistics)); |
1068 | break; | |
1069 | case CU_SRESUME: | |
1070 | /* CU static resume. */ | |
1071 | missing("CU static resume"); | |
1072 | break; | |
1073 | default: | |
1074 | missing("Undefined CU command"); | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | static void eepro100_ru_command(EEPRO100State * s, uint8_t val) | |
1079 | { | |
1080 | switch (val) { | |
1081 | case RU_NOP: | |
1082 | /* No operation. */ | |
1083 | break; | |
1084 | case RX_START: | |
1085 | /* RU start. */ | |
1086 | if (get_ru_state(s) != ru_idle) { | |
1087 | logout("RU state is %u, should be %u\n", get_ru_state(s), ru_idle); | |
e7493b25 SW |
1088 | #if 0 |
1089 | assert(!"wrong RU state"); | |
1090 | #endif | |
663e8e51 TS |
1091 | } |
1092 | set_ru_state(s, ru_ready); | |
1093 | s->ru_offset = s->pointer; | |
aac443e6 | 1094 | TRACE(OTHER, logout("val=0x%02x (rx start)\n", val)); |
663e8e51 TS |
1095 | break; |
1096 | case RX_RESUME: | |
1097 | /* Restart RU. */ | |
1098 | if (get_ru_state(s) != ru_suspended) { | |
1099 | logout("RU state is %u, should be %u\n", get_ru_state(s), | |
1100 | ru_suspended); | |
e7493b25 SW |
1101 | #if 0 |
1102 | assert(!"wrong RU state"); | |
1103 | #endif | |
663e8e51 TS |
1104 | } |
1105 | set_ru_state(s, ru_ready); | |
1106 | break; | |
e824012b SW |
1107 | case RU_ABORT: |
1108 | /* RU abort. */ | |
1109 | if (get_ru_state(s) == ru_ready) { | |
1110 | eepro100_rnr_interrupt(s); | |
1111 | } | |
1112 | set_ru_state(s, ru_idle); | |
1113 | break; | |
663e8e51 TS |
1114 | case RX_ADDR_LOAD: |
1115 | /* Load RU base. */ | |
aac443e6 | 1116 | TRACE(OTHER, logout("val=0x%02x (RU base address)\n", val)); |
663e8e51 TS |
1117 | s->ru_base = s->pointer; |
1118 | break; | |
1119 | default: | |
1120 | logout("val=0x%02x (undefined RU command)\n", val); | |
1121 | missing("Undefined SU command"); | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | static void eepro100_write_command(EEPRO100State * s, uint8_t val) | |
1126 | { | |
1127 | eepro100_ru_command(s, val & 0x0f); | |
1128 | eepro100_cu_command(s, val & 0xf0); | |
1129 | if ((val) == 0) { | |
aac443e6 | 1130 | TRACE(OTHER, logout("val=0x%02x\n", val)); |
663e8e51 TS |
1131 | } |
1132 | /* Clear command byte after command was accepted. */ | |
1133 | s->mem[SCBCmd] = 0; | |
1134 | } | |
1135 | ||
1136 | /***************************************************************************** | |
1137 | * | |
1138 | * EEPROM emulation. | |
1139 | * | |
1140 | ****************************************************************************/ | |
1141 | ||
1142 | #define EEPROM_CS 0x02 | |
1143 | #define EEPROM_SK 0x01 | |
1144 | #define EEPROM_DI 0x04 | |
1145 | #define EEPROM_DO 0x08 | |
1146 | ||
1147 | static uint16_t eepro100_read_eeprom(EEPRO100State * s) | |
1148 | { | |
1149 | uint16_t val; | |
1150 | memcpy(&val, &s->mem[SCBeeprom], sizeof(val)); | |
1151 | if (eeprom93xx_read(s->eeprom)) { | |
1152 | val |= EEPROM_DO; | |
1153 | } else { | |
1154 | val &= ~EEPROM_DO; | |
1155 | } | |
aac443e6 | 1156 | TRACE(EEPROM, logout("val=0x%04x\n", val)); |
663e8e51 TS |
1157 | return val; |
1158 | } | |
1159 | ||
c227f099 | 1160 | static void eepro100_write_eeprom(eeprom_t * eeprom, uint8_t val) |
663e8e51 | 1161 | { |
aac443e6 | 1162 | TRACE(EEPROM, logout("val=0x%02x\n", val)); |
663e8e51 TS |
1163 | |
1164 | /* mask unwriteable bits */ | |
e7493b25 SW |
1165 | #if 0 |
1166 | val = SET_MASKED(val, 0x31, eeprom->value); | |
1167 | #endif | |
663e8e51 TS |
1168 | |
1169 | int eecs = ((val & EEPROM_CS) != 0); | |
1170 | int eesk = ((val & EEPROM_SK) != 0); | |
1171 | int eedi = ((val & EEPROM_DI) != 0); | |
1172 | eeprom93xx_write(eeprom, eecs, eesk, eedi); | |
1173 | } | |
1174 | ||
1175 | static void eepro100_write_pointer(EEPRO100State * s, uint32_t val) | |
1176 | { | |
1177 | s->pointer = le32_to_cpu(val); | |
aac443e6 | 1178 | TRACE(OTHER, logout("val=0x%08x\n", val)); |
663e8e51 TS |
1179 | } |
1180 | ||
1181 | /***************************************************************************** | |
1182 | * | |
1183 | * MDI emulation. | |
1184 | * | |
1185 | ****************************************************************************/ | |
1186 | ||
1187 | #if defined(DEBUG_EEPRO100) | |
6a0b9cc9 | 1188 | static const char * const mdi_op_name[] = { |
663e8e51 TS |
1189 | "opcode 0", |
1190 | "write", | |
1191 | "read", | |
1192 | "opcode 3" | |
1193 | }; | |
1194 | ||
6a0b9cc9 | 1195 | static const char * const mdi_reg_name[] = { |
663e8e51 TS |
1196 | "Control", |
1197 | "Status", | |
1198 | "PHY Identification (Word 1)", | |
1199 | "PHY Identification (Word 2)", | |
1200 | "Auto-Negotiation Advertisement", | |
1201 | "Auto-Negotiation Link Partner Ability", | |
1202 | "Auto-Negotiation Expansion" | |
1203 | }; | |
aac443e6 SW |
1204 | |
1205 | static const char *reg2name(uint8_t reg) | |
1206 | { | |
1207 | static char buffer[10]; | |
1208 | const char *p = buffer; | |
1209 | if (reg < ARRAY_SIZE(mdi_reg_name)) { | |
1210 | p = mdi_reg_name[reg]; | |
1211 | } else { | |
1212 | snprintf(buffer, sizeof(buffer), "reg=0x%02x", reg); | |
1213 | } | |
1214 | return p; | |
1215 | } | |
663e8e51 TS |
1216 | #endif /* DEBUG_EEPRO100 */ |
1217 | ||
1218 | static uint32_t eepro100_read_mdi(EEPRO100State * s) | |
1219 | { | |
1220 | uint32_t val; | |
1221 | memcpy(&val, &s->mem[0x10], sizeof(val)); | |
1222 | ||
1223 | #ifdef DEBUG_EEPRO100 | |
1224 | uint8_t raiseint = (val & BIT(29)) >> 29; | |
1225 | uint8_t opcode = (val & BITS(27, 26)) >> 26; | |
1226 | uint8_t phy = (val & BITS(25, 21)) >> 21; | |
1227 | uint8_t reg = (val & BITS(20, 16)) >> 16; | |
1228 | uint16_t data = (val & BITS(15, 0)); | |
1229 | #endif | |
1230 | /* Emulation takes no time to finish MDI transaction. */ | |
1231 | val |= BIT(28); | |
1232 | TRACE(MDI, logout("val=0x%08x (int=%u, %s, phy=%u, %s, data=0x%04x\n", | |
1233 | val, raiseint, mdi_op_name[opcode], phy, | |
aac443e6 | 1234 | reg2name(reg), data)); |
663e8e51 TS |
1235 | return val; |
1236 | } | |
1237 | ||
663e8e51 TS |
1238 | static void eepro100_write_mdi(EEPRO100State * s, uint32_t val) |
1239 | { | |
1240 | uint8_t raiseint = (val & BIT(29)) >> 29; | |
1241 | uint8_t opcode = (val & BITS(27, 26)) >> 26; | |
1242 | uint8_t phy = (val & BITS(25, 21)) >> 21; | |
1243 | uint8_t reg = (val & BITS(20, 16)) >> 16; | |
1244 | uint16_t data = (val & BITS(15, 0)); | |
aac443e6 SW |
1245 | TRACE(MDI, logout("val=0x%08x (int=%u, %s, phy=%u, %s, data=0x%04x\n", |
1246 | val, raiseint, mdi_op_name[opcode], phy, reg2name(reg), data)); | |
663e8e51 TS |
1247 | if (phy != 1) { |
1248 | /* Unsupported PHY address. */ | |
e7493b25 SW |
1249 | #if 0 |
1250 | logout("phy must be 1 but is %u\n", phy); | |
1251 | #endif | |
663e8e51 TS |
1252 | data = 0; |
1253 | } else if (opcode != 1 && opcode != 2) { | |
1254 | /* Unsupported opcode. */ | |
1255 | logout("opcode must be 1 or 2 but is %u\n", opcode); | |
1256 | data = 0; | |
1257 | } else if (reg > 6) { | |
1258 | /* Unsupported register. */ | |
1259 | logout("register must be 0...6 but is %u\n", reg); | |
1260 | data = 0; | |
1261 | } else { | |
1262 | TRACE(MDI, logout("val=0x%08x (int=%u, %s, phy=%u, %s, data=0x%04x\n", | |
1263 | val, raiseint, mdi_op_name[opcode], phy, | |
aac443e6 | 1264 | reg2name(reg), data)); |
663e8e51 TS |
1265 | if (opcode == 1) { |
1266 | /* MDI write */ | |
1267 | switch (reg) { | |
1268 | case 0: /* Control Register */ | |
1269 | if (data & 0x8000) { | |
1270 | /* Reset status and control registers to default. */ | |
1271 | s->mdimem[0] = eepro100_mdi_default[0]; | |
1272 | s->mdimem[1] = eepro100_mdi_default[1]; | |
1273 | data = s->mdimem[reg]; | |
1274 | } else { | |
1275 | /* Restart Auto Configuration = Normal Operation */ | |
1276 | data &= ~0x0200; | |
1277 | } | |
1278 | break; | |
1279 | case 1: /* Status Register */ | |
1280 | missing("not writable"); | |
1281 | data = s->mdimem[reg]; | |
1282 | break; | |
1283 | case 2: /* PHY Identification Register (Word 1) */ | |
1284 | case 3: /* PHY Identification Register (Word 2) */ | |
1285 | missing("not implemented"); | |
1286 | break; | |
1287 | case 4: /* Auto-Negotiation Advertisement Register */ | |
1288 | case 5: /* Auto-Negotiation Link Partner Ability Register */ | |
1289 | break; | |
1290 | case 6: /* Auto-Negotiation Expansion Register */ | |
1291 | default: | |
1292 | missing("not implemented"); | |
1293 | } | |
1294 | s->mdimem[reg] = data; | |
1295 | } else if (opcode == 2) { | |
1296 | /* MDI read */ | |
1297 | switch (reg) { | |
1298 | case 0: /* Control Register */ | |
1299 | if (data & 0x8000) { | |
1300 | /* Reset status and control registers to default. */ | |
1301 | s->mdimem[0] = eepro100_mdi_default[0]; | |
1302 | s->mdimem[1] = eepro100_mdi_default[1]; | |
1303 | } | |
1304 | break; | |
1305 | case 1: /* Status Register */ | |
1306 | s->mdimem[reg] |= 0x0020; | |
1307 | break; | |
1308 | case 2: /* PHY Identification Register (Word 1) */ | |
1309 | case 3: /* PHY Identification Register (Word 2) */ | |
1310 | case 4: /* Auto-Negotiation Advertisement Register */ | |
1311 | break; | |
1312 | case 5: /* Auto-Negotiation Link Partner Ability Register */ | |
1313 | s->mdimem[reg] = 0x41fe; | |
1314 | break; | |
1315 | case 6: /* Auto-Negotiation Expansion Register */ | |
1316 | s->mdimem[reg] = 0x0001; | |
1317 | break; | |
1318 | } | |
1319 | data = s->mdimem[reg]; | |
1320 | } | |
1321 | /* Emulation takes no time to finish MDI transaction. | |
1322 | * Set MDI bit in SCB status register. */ | |
1323 | s->mem[SCBAck] |= 0x08; | |
1324 | val |= BIT(28); | |
1325 | if (raiseint) { | |
1326 | eepro100_mdi_interrupt(s); | |
1327 | } | |
1328 | } | |
1329 | val = (val & 0xffff0000) + data; | |
1330 | memcpy(&s->mem[0x10], &val, sizeof(val)); | |
1331 | } | |
1332 | ||
1333 | /***************************************************************************** | |
1334 | * | |
1335 | * Port emulation. | |
1336 | * | |
1337 | ****************************************************************************/ | |
1338 | ||
1339 | #define PORT_SOFTWARE_RESET 0 | |
1340 | #define PORT_SELFTEST 1 | |
1341 | #define PORT_SELECTIVE_RESET 2 | |
1342 | #define PORT_DUMP 3 | |
1343 | #define PORT_SELECTION_MASK 3 | |
1344 | ||
1345 | typedef struct { | |
1346 | uint32_t st_sign; /* Self Test Signature */ | |
1347 | uint32_t st_result; /* Self Test Results */ | |
c227f099 | 1348 | } eepro100_selftest_t; |
663e8e51 TS |
1349 | |
1350 | static uint32_t eepro100_read_port(EEPRO100State * s) | |
1351 | { | |
1352 | return 0; | |
1353 | } | |
1354 | ||
1355 | static void eepro100_write_port(EEPRO100State * s, uint32_t val) | |
1356 | { | |
1357 | val = le32_to_cpu(val); | |
1358 | uint32_t address = (val & ~PORT_SELECTION_MASK); | |
1359 | uint8_t selection = (val & PORT_SELECTION_MASK); | |
1360 | switch (selection) { | |
1361 | case PORT_SOFTWARE_RESET: | |
1362 | nic_reset(s); | |
1363 | break; | |
1364 | case PORT_SELFTEST: | |
aac443e6 | 1365 | TRACE(OTHER, logout("selftest address=0x%08x\n", address)); |
c227f099 | 1366 | eepro100_selftest_t data; |
663e8e51 TS |
1367 | cpu_physical_memory_read(address, (uint8_t *) & data, sizeof(data)); |
1368 | data.st_sign = 0xffffffff; | |
1369 | data.st_result = 0; | |
1370 | cpu_physical_memory_write(address, (uint8_t *) & data, sizeof(data)); | |
1371 | break; | |
1372 | case PORT_SELECTIVE_RESET: | |
aac443e6 | 1373 | TRACE(OTHER, logout("selective reset, selftest address=0x%08x\n", address)); |
663e8e51 TS |
1374 | nic_selective_reset(s); |
1375 | break; | |
1376 | default: | |
1377 | logout("val=0x%08x\n", val); | |
1378 | missing("unknown port selection"); | |
1379 | } | |
1380 | } | |
1381 | ||
1382 | /***************************************************************************** | |
1383 | * | |
1384 | * General hardware emulation. | |
1385 | * | |
1386 | ****************************************************************************/ | |
1387 | ||
1388 | static uint8_t eepro100_read1(EEPRO100State * s, uint32_t addr) | |
1389 | { | |
1390 | uint8_t val; | |
1391 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1392 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1393 | } | |
1394 | ||
1395 | switch (addr) { | |
1396 | case SCBStatus: | |
e7493b25 SW |
1397 | #if 0 |
1398 | val = eepro100_read_status(s); | |
1399 | #endif | |
aac443e6 | 1400 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1401 | break; |
1402 | case SCBAck: | |
e7493b25 SW |
1403 | #if 0 |
1404 | val = eepro100_read_status(s); | |
1405 | #endif | |
aac443e6 | 1406 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1407 | break; |
1408 | case SCBCmd: | |
aac443e6 | 1409 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
e7493b25 SW |
1410 | #if 0 |
1411 | val = eepro100_read_command(s); | |
1412 | #endif | |
663e8e51 TS |
1413 | break; |
1414 | case SCBIntmask: | |
aac443e6 | 1415 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1416 | break; |
1417 | case SCBPort + 3: | |
aac443e6 | 1418 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1419 | break; |
1420 | case SCBeeprom: | |
1421 | val = eepro100_read_eeprom(s); | |
1422 | break; | |
0908bba1 | 1423 | case SCBpmdr: /* Power Management Driver Register */ |
663e8e51 | 1424 | val = 0; |
aac443e6 | 1425 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 | 1426 | break; |
0908bba1 | 1427 | case SCBgstat: /* General Status Register */ |
663e8e51 TS |
1428 | /* 100 Mbps full duplex, valid link */ |
1429 | val = 0x07; | |
aac443e6 | 1430 | TRACE(OTHER, logout("addr=General Status val=%02x\n", val)); |
663e8e51 TS |
1431 | break; |
1432 | default: | |
1433 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1434 | missing("unknown byte read"); | |
1435 | } | |
1436 | return val; | |
1437 | } | |
1438 | ||
1439 | static uint16_t eepro100_read2(EEPRO100State * s, uint32_t addr) | |
1440 | { | |
1441 | uint16_t val; | |
1442 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1443 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1444 | } | |
1445 | ||
663e8e51 TS |
1446 | switch (addr) { |
1447 | case SCBStatus: | |
e7493b25 SW |
1448 | #if 0 |
1449 | val = eepro100_read_status(s); | |
1450 | #endif | |
dbbaaff6 | 1451 | case SCBCmd: |
aac443e6 | 1452 | TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val)); |
663e8e51 TS |
1453 | break; |
1454 | case SCBeeprom: | |
1455 | val = eepro100_read_eeprom(s); | |
aac443e6 | 1456 | TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val)); |
663e8e51 TS |
1457 | break; |
1458 | default: | |
1459 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1460 | missing("unknown word read"); | |
1461 | } | |
1462 | return val; | |
1463 | } | |
1464 | ||
1465 | static uint32_t eepro100_read4(EEPRO100State * s, uint32_t addr) | |
1466 | { | |
1467 | uint32_t val; | |
1468 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1469 | memcpy(&val, &s->mem[addr], sizeof(val)); | |
1470 | } | |
1471 | ||
1472 | switch (addr) { | |
1473 | case SCBStatus: | |
e7493b25 SW |
1474 | #if 0 |
1475 | val = eepro100_read_status(s); | |
1476 | #endif | |
aac443e6 | 1477 | TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val)); |
663e8e51 TS |
1478 | break; |
1479 | case SCBPointer: | |
e7493b25 SW |
1480 | #if 0 |
1481 | val = eepro100_read_pointer(s); | |
1482 | #endif | |
aac443e6 | 1483 | TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val)); |
663e8e51 TS |
1484 | break; |
1485 | case SCBPort: | |
1486 | val = eepro100_read_port(s); | |
aac443e6 | 1487 | TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val)); |
663e8e51 TS |
1488 | break; |
1489 | case SCBCtrlMDI: | |
1490 | val = eepro100_read_mdi(s); | |
1491 | break; | |
1492 | default: | |
1493 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1494 | missing("unknown longword read"); | |
1495 | } | |
1496 | return val; | |
1497 | } | |
1498 | ||
1499 | static void eepro100_write1(EEPRO100State * s, uint32_t addr, uint8_t val) | |
1500 | { | |
1501 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1502 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1503 | } | |
1504 | ||
aac443e6 | 1505 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1506 | |
1507 | switch (addr) { | |
1508 | case SCBStatus: | |
e7493b25 SW |
1509 | #if 0 |
1510 | eepro100_write_status(s, val); | |
1511 | #endif | |
663e8e51 TS |
1512 | break; |
1513 | case SCBAck: | |
1514 | eepro100_acknowledge(s); | |
1515 | break; | |
1516 | case SCBCmd: | |
1517 | eepro100_write_command(s, val); | |
1518 | break; | |
1519 | case SCBIntmask: | |
1520 | if (val & BIT(1)) { | |
1521 | eepro100_swi_interrupt(s); | |
1522 | } | |
1523 | eepro100_interrupt(s, 0); | |
1524 | break; | |
1525 | case SCBPort + 3: | |
aac443e6 | 1526 | case SCBFlow: /* does not exist on 82557 */ |
3257d2b6 TS |
1527 | case SCBFlow + 1: |
1528 | case SCBFlow + 2: | |
0908bba1 | 1529 | case SCBpmdr: /* does not exist on 82557 */ |
aac443e6 | 1530 | TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val)); |
663e8e51 TS |
1531 | break; |
1532 | case SCBeeprom: | |
1533 | eepro100_write_eeprom(s->eeprom, val); | |
1534 | break; | |
1535 | default: | |
1536 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1537 | missing("unknown byte write"); | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | static void eepro100_write2(EEPRO100State * s, uint32_t addr, uint16_t val) | |
1542 | { | |
1543 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1544 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1545 | } | |
1546 | ||
aac443e6 | 1547 | TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val)); |
663e8e51 TS |
1548 | |
1549 | switch (addr) { | |
1550 | case SCBStatus: | |
e7493b25 SW |
1551 | #if 0 |
1552 | eepro100_write_status(s, val); | |
1553 | #endif | |
663e8e51 TS |
1554 | eepro100_acknowledge(s); |
1555 | break; | |
1556 | case SCBCmd: | |
1557 | eepro100_write_command(s, val); | |
1558 | eepro100_write1(s, SCBIntmask, val >> 8); | |
1559 | break; | |
1560 | case SCBeeprom: | |
1561 | eepro100_write_eeprom(s->eeprom, val); | |
1562 | break; | |
1563 | default: | |
1564 | logout("addr=%s val=0x%04x\n", regname(addr), val); | |
1565 | missing("unknown word write"); | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | static void eepro100_write4(EEPRO100State * s, uint32_t addr, uint32_t val) | |
1570 | { | |
1571 | if (addr <= sizeof(s->mem) - sizeof(val)) { | |
1572 | memcpy(&s->mem[addr], &val, sizeof(val)); | |
1573 | } | |
1574 | ||
1575 | switch (addr) { | |
1576 | case SCBPointer: | |
1577 | eepro100_write_pointer(s, val); | |
1578 | break; | |
1579 | case SCBPort: | |
aac443e6 | 1580 | TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val)); |
663e8e51 TS |
1581 | eepro100_write_port(s, val); |
1582 | break; | |
1583 | case SCBCtrlMDI: | |
1584 | eepro100_write_mdi(s, val); | |
1585 | break; | |
1586 | default: | |
1587 | logout("addr=%s val=0x%08x\n", regname(addr), val); | |
1588 | missing("unknown longword write"); | |
1589 | } | |
1590 | } | |
1591 | ||
aac443e6 SW |
1592 | /***************************************************************************** |
1593 | * | |
1594 | * Port mapped I/O. | |
1595 | * | |
1596 | ****************************************************************************/ | |
1597 | ||
663e8e51 TS |
1598 | static uint32_t ioport_read1(void *opaque, uint32_t addr) |
1599 | { | |
1600 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1601 | #if 0 |
1602 | logout("addr=%s\n", regname(addr)); | |
1603 | #endif | |
663e8e51 TS |
1604 | return eepro100_read1(s, addr - s->region[1]); |
1605 | } | |
1606 | ||
1607 | static uint32_t ioport_read2(void *opaque, uint32_t addr) | |
1608 | { | |
1609 | EEPRO100State *s = opaque; | |
1610 | return eepro100_read2(s, addr - s->region[1]); | |
1611 | } | |
1612 | ||
1613 | static uint32_t ioport_read4(void *opaque, uint32_t addr) | |
1614 | { | |
1615 | EEPRO100State *s = opaque; | |
1616 | return eepro100_read4(s, addr - s->region[1]); | |
1617 | } | |
1618 | ||
1619 | static void ioport_write1(void *opaque, uint32_t addr, uint32_t val) | |
1620 | { | |
1621 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1622 | #if 0 |
1623 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1624 | #endif | |
663e8e51 TS |
1625 | eepro100_write1(s, addr - s->region[1], val); |
1626 | } | |
1627 | ||
1628 | static void ioport_write2(void *opaque, uint32_t addr, uint32_t val) | |
1629 | { | |
1630 | EEPRO100State *s = opaque; | |
1631 | eepro100_write2(s, addr - s->region[1], val); | |
1632 | } | |
1633 | ||
1634 | static void ioport_write4(void *opaque, uint32_t addr, uint32_t val) | |
1635 | { | |
1636 | EEPRO100State *s = opaque; | |
1637 | eepro100_write4(s, addr - s->region[1], val); | |
1638 | } | |
1639 | ||
1640 | /***********************************************************/ | |
1641 | /* PCI EEPRO100 definitions */ | |
1642 | ||
663e8e51 | 1643 | static void pci_map(PCIDevice * pci_dev, int region_num, |
6e355d90 | 1644 | pcibus_t addr, pcibus_t size, int type) |
663e8e51 | 1645 | { |
273a2142 | 1646 | EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev); |
663e8e51 | 1647 | |
89e8b13c IY |
1648 | TRACE(OTHER, logout("region %d, addr=0x%08"FMT_PCIBUS", " |
1649 | "size=0x%08"FMT_PCIBUS", type=%d\n", | |
aac443e6 | 1650 | region_num, addr, size, type)); |
663e8e51 TS |
1651 | |
1652 | assert(region_num == 1); | |
1653 | register_ioport_write(addr, size, 1, ioport_write1, s); | |
1654 | register_ioport_read(addr, size, 1, ioport_read1, s); | |
1655 | register_ioport_write(addr, size, 2, ioport_write2, s); | |
1656 | register_ioport_read(addr, size, 2, ioport_read2, s); | |
1657 | register_ioport_write(addr, size, 4, ioport_write4, s); | |
1658 | register_ioport_read(addr, size, 4, ioport_read4, s); | |
1659 | ||
1660 | s->region[region_num] = addr; | |
1661 | } | |
1662 | ||
aac443e6 SW |
1663 | /***************************************************************************** |
1664 | * | |
1665 | * Memory mapped I/O. | |
1666 | * | |
1667 | ****************************************************************************/ | |
1668 | ||
c227f099 | 1669 | static void pci_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
663e8e51 TS |
1670 | { |
1671 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1672 | #if 0 |
1673 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1674 | #endif | |
663e8e51 TS |
1675 | eepro100_write1(s, addr, val); |
1676 | } | |
1677 | ||
c227f099 | 1678 | static void pci_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
663e8e51 TS |
1679 | { |
1680 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1681 | #if 0 |
1682 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1683 | #endif | |
663e8e51 TS |
1684 | eepro100_write2(s, addr, val); |
1685 | } | |
1686 | ||
c227f099 | 1687 | static void pci_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
663e8e51 TS |
1688 | { |
1689 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1690 | #if 0 |
1691 | logout("addr=%s val=0x%02x\n", regname(addr), val); | |
1692 | #endif | |
663e8e51 TS |
1693 | eepro100_write4(s, addr, val); |
1694 | } | |
1695 | ||
c227f099 | 1696 | static uint32_t pci_mmio_readb(void *opaque, target_phys_addr_t addr) |
663e8e51 TS |
1697 | { |
1698 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1699 | #if 0 |
1700 | logout("addr=%s\n", regname(addr)); | |
1701 | #endif | |
663e8e51 TS |
1702 | return eepro100_read1(s, addr); |
1703 | } | |
1704 | ||
c227f099 | 1705 | static uint32_t pci_mmio_readw(void *opaque, target_phys_addr_t addr) |
663e8e51 TS |
1706 | { |
1707 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1708 | #if 0 |
1709 | logout("addr=%s\n", regname(addr)); | |
1710 | #endif | |
663e8e51 TS |
1711 | return eepro100_read2(s, addr); |
1712 | } | |
1713 | ||
c227f099 | 1714 | static uint32_t pci_mmio_readl(void *opaque, target_phys_addr_t addr) |
663e8e51 TS |
1715 | { |
1716 | EEPRO100State *s = opaque; | |
e7493b25 SW |
1717 | #if 0 |
1718 | logout("addr=%s\n", regname(addr)); | |
1719 | #endif | |
663e8e51 TS |
1720 | return eepro100_read4(s, addr); |
1721 | } | |
1722 | ||
d60efc6b | 1723 | static CPUWriteMemoryFunc * const pci_mmio_write[] = { |
663e8e51 TS |
1724 | pci_mmio_writeb, |
1725 | pci_mmio_writew, | |
1726 | pci_mmio_writel | |
1727 | }; | |
1728 | ||
d60efc6b | 1729 | static CPUReadMemoryFunc * const pci_mmio_read[] = { |
663e8e51 TS |
1730 | pci_mmio_readb, |
1731 | pci_mmio_readw, | |
1732 | pci_mmio_readl | |
1733 | }; | |
1734 | ||
1735 | static void pci_mmio_map(PCIDevice * pci_dev, int region_num, | |
6e355d90 | 1736 | pcibus_t addr, pcibus_t size, int type) |
663e8e51 | 1737 | { |
273a2142 | 1738 | EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev); |
663e8e51 | 1739 | |
89e8b13c IY |
1740 | TRACE(OTHER, logout("region %d, addr=0x%08"FMT_PCIBUS", " |
1741 | "size=0x%08"FMT_PCIBUS", type=%d\n", | |
aac443e6 | 1742 | region_num, addr, size, type)); |
663e8e51 TS |
1743 | |
1744 | if (region_num == 0) { | |
1745 | /* Map control / status registers. */ | |
273a2142 JQ |
1746 | cpu_register_physical_memory(addr, size, s->mmio_index); |
1747 | s->region[region_num] = addr; | |
663e8e51 TS |
1748 | } |
1749 | } | |
1750 | ||
e00e365e | 1751 | static int nic_can_receive(VLANClientState *nc) |
663e8e51 | 1752 | { |
e00e365e | 1753 | EEPRO100State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
aac443e6 | 1754 | TRACE(RXTX, logout("%p\n", s)); |
663e8e51 | 1755 | return get_ru_state(s) == ru_ready; |
e7493b25 SW |
1756 | #if 0 |
1757 | return !eepro100_buffer_full(s); | |
1758 | #endif | |
663e8e51 TS |
1759 | } |
1760 | ||
e00e365e | 1761 | static ssize_t nic_receive(VLANClientState *nc, const uint8_t * buf, size_t size) |
663e8e51 TS |
1762 | { |
1763 | /* TODO: | |
1764 | * - Magic packets should set bit 30 in power management driver register. | |
1765 | * - Interesting packets should set bit 29 in power management driver register. | |
1766 | */ | |
e00e365e | 1767 | EEPRO100State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
663e8e51 TS |
1768 | uint16_t rfd_status = 0xa000; |
1769 | static const uint8_t broadcast_macaddr[6] = | |
1770 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
1771 | ||
1772 | /* TODO: check multiple IA bit. */ | |
7f1e9d4e KW |
1773 | if (s->configuration[20] & BIT(6)) { |
1774 | missing("Multiple IA bit"); | |
1775 | return -1; | |
1776 | } | |
663e8e51 TS |
1777 | |
1778 | if (s->configuration[8] & 0x80) { | |
1779 | /* CSMA is disabled. */ | |
1780 | logout("%p received while CSMA is disabled\n", s); | |
4f1c942b | 1781 | return -1; |
ced5296a | 1782 | } else if (size < 64 && (s->configuration[7] & BIT(0))) { |
663e8e51 TS |
1783 | /* Short frame and configuration byte 7/0 (discard short receive) set: |
1784 | * Short frame is discarded */ | |
067d01de | 1785 | logout("%p received short frame (%zu byte)\n", s, size); |
663e8e51 | 1786 | s->statistics.rx_short_frame_errors++; |
e7493b25 SW |
1787 | #if 0 |
1788 | return -1; | |
1789 | #endif | |
ced5296a | 1790 | } else if ((size > MAX_ETH_FRAME_SIZE + 4) && !(s->configuration[18] & BIT(3))) { |
663e8e51 TS |
1791 | /* Long frame and configuration byte 18/3 (long receive ok) not set: |
1792 | * Long frames are discarded. */ | |
067d01de | 1793 | logout("%p received long frame (%zu byte), ignored\n", s, size); |
4f1c942b | 1794 | return -1; |
e7493b25 | 1795 | } else if (memcmp(buf, s->conf.macaddr.a, 6) == 0) { /* !!! */ |
663e8e51 TS |
1796 | /* Frame matches individual address. */ |
1797 | /* TODO: check configuration byte 15/4 (ignore U/L). */ | |
067d01de | 1798 | TRACE(RXTX, logout("%p received frame for me, len=%zu\n", s, size)); |
663e8e51 TS |
1799 | } else if (memcmp(buf, broadcast_macaddr, 6) == 0) { |
1800 | /* Broadcast frame. */ | |
067d01de | 1801 | TRACE(RXTX, logout("%p received broadcast, len=%zu\n", s, size)); |
663e8e51 | 1802 | rfd_status |= 0x0002; |
7b8737de | 1803 | } else if (buf[0] & 0x01) { |
663e8e51 | 1804 | /* Multicast frame. */ |
7b8737de | 1805 | TRACE(RXTX, logout("%p received multicast, len=%zu,%s\n", s, size, nic_dump(buf, size))); |
7f1e9d4e | 1806 | if (s->configuration[21] & BIT(3)) { |
7b8737de SW |
1807 | /* Multicast all bit is set, receive all multicast frames. */ |
1808 | } else { | |
1809 | unsigned mcast_idx = compute_mcast_idx(buf); | |
1810 | assert(mcast_idx < 64); | |
1811 | if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) { | |
1812 | /* Multicast frame is allowed in hash table. */ | |
ced5296a | 1813 | } else if (s->configuration[15] & BIT(0)) { |
7b8737de SW |
1814 | /* Promiscuous: receive all. */ |
1815 | rfd_status |= 0x0004; | |
1816 | } else { | |
1817 | TRACE(RXTX, logout("%p multicast ignored\n", s)); | |
1818 | return -1; | |
1819 | } | |
663e8e51 | 1820 | } |
7b8737de | 1821 | /* TODO: Next not for promiscuous mode? */ |
663e8e51 | 1822 | rfd_status |= 0x0002; |
ced5296a | 1823 | } else if (s->configuration[15] & BIT(0)) { |
663e8e51 | 1824 | /* Promiscuous: receive all. */ |
067d01de | 1825 | TRACE(RXTX, logout("%p received frame in promiscuous mode, len=%zu\n", s, size)); |
663e8e51 TS |
1826 | rfd_status |= 0x0004; |
1827 | } else { | |
067d01de | 1828 | TRACE(RXTX, logout("%p received frame, ignored, len=%zu,%s\n", s, size, |
aac443e6 | 1829 | nic_dump(buf, size))); |
4f1c942b | 1830 | return size; |
663e8e51 TS |
1831 | } |
1832 | ||
1833 | if (get_ru_state(s) != ru_ready) { | |
aac443e6 SW |
1834 | /* No resources available. */ |
1835 | logout("no resources, state=%u\n", get_ru_state(s)); | |
e824012b SW |
1836 | /* TODO: RNR interrupt only at first failed frame? */ |
1837 | eepro100_rnr_interrupt(s); | |
663e8e51 | 1838 | s->statistics.rx_resource_errors++; |
e7493b25 SW |
1839 | #if 0 |
1840 | assert(!"no resources"); | |
1841 | #endif | |
4f1c942b | 1842 | return -1; |
663e8e51 | 1843 | } |
e7493b25 | 1844 | /* !!! */ |
c227f099 | 1845 | eepro100_rx_t rx; |
663e8e51 | 1846 | cpu_physical_memory_read(s->ru_base + s->ru_offset, (uint8_t *) & rx, |
c227f099 | 1847 | offsetof(eepro100_rx_t, packet)); |
663e8e51 TS |
1848 | uint16_t rfd_command = le16_to_cpu(rx.command); |
1849 | uint16_t rfd_size = le16_to_cpu(rx.size); | |
7f1e9d4e KW |
1850 | |
1851 | if (size > rfd_size) { | |
1852 | logout("Receive buffer (%" PRId16 " bytes) too small for data " | |
1853 | "(%zu bytes); data truncated\n", rfd_size, size); | |
1854 | size = rfd_size; | |
1855 | } | |
663e8e51 TS |
1856 | if (size < 64) { |
1857 | rfd_status |= 0x0080; | |
1858 | } | |
aac443e6 SW |
1859 | TRACE(OTHER, logout("command 0x%04x, link 0x%08x, addr 0x%08x, size %u\n", |
1860 | rfd_command, rx.link, rx.rx_buf_addr, rfd_size)); | |
c227f099 | 1861 | stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, status), |
663e8e51 | 1862 | rfd_status); |
c227f099 | 1863 | stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, count), size); |
663e8e51 | 1864 | /* Early receive interrupt not supported. */ |
e7493b25 SW |
1865 | #if 0 |
1866 | eepro100_er_interrupt(s); | |
1867 | #endif | |
663e8e51 | 1868 | /* Receive CRC Transfer not supported. */ |
ced5296a | 1869 | if (s->configuration[18] & BIT(2)) { |
7f1e9d4e KW |
1870 | missing("Receive CRC Transfer"); |
1871 | return -1; | |
1872 | } | |
663e8e51 | 1873 | /* TODO: check stripping enable bit. */ |
e7493b25 SW |
1874 | #if 0 |
1875 | assert(!(s->configuration[17] & BIT(0))); | |
1876 | #endif | |
663e8e51 | 1877 | cpu_physical_memory_write(s->ru_base + s->ru_offset + |
c227f099 | 1878 | offsetof(eepro100_rx_t, packet), buf, size); |
663e8e51 TS |
1879 | s->statistics.rx_good_frames++; |
1880 | eepro100_fr_interrupt(s); | |
1881 | s->ru_offset = le32_to_cpu(rx.link); | |
ced5296a | 1882 | if (rfd_command & COMMAND_EL) { |
663e8e51 | 1883 | /* EL bit is set, so this was the last frame. */ |
7f1e9d4e KW |
1884 | logout("receive: Running out of frames\n"); |
1885 | set_ru_state(s, ru_suspended); | |
663e8e51 | 1886 | } |
ced5296a | 1887 | if (rfd_command & COMMAND_S) { |
663e8e51 TS |
1888 | /* S bit is set. */ |
1889 | set_ru_state(s, ru_suspended); | |
1890 | } | |
4f1c942b | 1891 | return size; |
663e8e51 TS |
1892 | } |
1893 | ||
151b2986 JQ |
1894 | static const VMStateDescription vmstate_eepro100 = { |
1895 | .version_id = 3, | |
1896 | .minimum_version_id = 2, | |
1897 | .minimum_version_id_old = 2, | |
1898 | .fields = (VMStateField []) { | |
1899 | VMSTATE_PCI_DEVICE(dev, EEPRO100State), | |
1900 | VMSTATE_UNUSED(32), | |
1901 | VMSTATE_BUFFER(mult, EEPRO100State), | |
1902 | VMSTATE_BUFFER(mem, EEPRO100State), | |
1903 | /* Save all members of struct between scb_stat and mem. */ | |
1904 | VMSTATE_UINT8(scb_stat, EEPRO100State), | |
1905 | VMSTATE_UINT8(int_stat, EEPRO100State), | |
1906 | VMSTATE_UNUSED(3*4), | |
1907 | VMSTATE_MACADDR(conf.macaddr, EEPRO100State), | |
1908 | VMSTATE_UNUSED(19*4), | |
1909 | VMSTATE_UINT16_ARRAY(mdimem, EEPRO100State, 32), | |
1910 | /* The eeprom should be saved and restored by its own routines. */ | |
1911 | VMSTATE_UINT32(device, EEPRO100State), | |
1912 | /* TODO check device. */ | |
1913 | VMSTATE_UINT32(pointer, EEPRO100State), | |
1914 | VMSTATE_UINT32(cu_base, EEPRO100State), | |
1915 | VMSTATE_UINT32(cu_offset, EEPRO100State), | |
1916 | VMSTATE_UINT32(ru_base, EEPRO100State), | |
1917 | VMSTATE_UINT32(ru_offset, EEPRO100State), | |
1918 | VMSTATE_UINT32(statsaddr, EEPRO100State), | |
ba42b646 | 1919 | /* Save eepro100_stats_t statistics. */ |
151b2986 JQ |
1920 | VMSTATE_UINT32(statistics.tx_good_frames, EEPRO100State), |
1921 | VMSTATE_UINT32(statistics.tx_max_collisions, EEPRO100State), | |
1922 | VMSTATE_UINT32(statistics.tx_late_collisions, EEPRO100State), | |
1923 | VMSTATE_UINT32(statistics.tx_underruns, EEPRO100State), | |
1924 | VMSTATE_UINT32(statistics.tx_lost_crs, EEPRO100State), | |
1925 | VMSTATE_UINT32(statistics.tx_deferred, EEPRO100State), | |
1926 | VMSTATE_UINT32(statistics.tx_single_collisions, EEPRO100State), | |
1927 | VMSTATE_UINT32(statistics.tx_multiple_collisions, EEPRO100State), | |
1928 | VMSTATE_UINT32(statistics.tx_total_collisions, EEPRO100State), | |
1929 | VMSTATE_UINT32(statistics.rx_good_frames, EEPRO100State), | |
1930 | VMSTATE_UINT32(statistics.rx_crc_errors, EEPRO100State), | |
1931 | VMSTATE_UINT32(statistics.rx_alignment_errors, EEPRO100State), | |
1932 | VMSTATE_UINT32(statistics.rx_resource_errors, EEPRO100State), | |
1933 | VMSTATE_UINT32(statistics.rx_overrun_errors, EEPRO100State), | |
1934 | VMSTATE_UINT32(statistics.rx_cdt_errors, EEPRO100State), | |
1935 | VMSTATE_UINT32(statistics.rx_short_frame_errors, EEPRO100State), | |
1936 | VMSTATE_UINT32(statistics.fc_xmt_pause, EEPRO100State), | |
1937 | VMSTATE_UINT32(statistics.fc_rcv_pause, EEPRO100State), | |
1938 | VMSTATE_UINT32(statistics.fc_rcv_unsupported, EEPRO100State), | |
1939 | VMSTATE_UINT16(statistics.xmt_tco_frames, EEPRO100State), | |
1940 | VMSTATE_UINT16(statistics.rcv_tco_frames, EEPRO100State), | |
2657c663 | 1941 | #if 0 |
151b2986 | 1942 | VMSTATE_UINT16(status, EEPRO100State), |
2657c663 | 1943 | #endif |
151b2986 JQ |
1944 | /* Configuration bytes. */ |
1945 | VMSTATE_BUFFER(configuration, EEPRO100State), | |
1946 | VMSTATE_END_OF_LIST() | |
aac443e6 | 1947 | } |
151b2986 | 1948 | }; |
663e8e51 | 1949 | |
e00e365e | 1950 | static void nic_cleanup(VLANClientState *nc) |
b946a153 | 1951 | { |
e00e365e | 1952 | EEPRO100State *s = DO_UPCAST(NICState, nc, nc)->opaque; |
b946a153 | 1953 | |
e00e365e | 1954 | s->nic = NULL; |
b946a153 AL |
1955 | } |
1956 | ||
c4c270e2 | 1957 | static int pci_nic_uninit(PCIDevice *pci_dev) |
b946a153 | 1958 | { |
c4c270e2 | 1959 | EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev); |
b946a153 AL |
1960 | |
1961 | cpu_unregister_io_memory(s->mmio_index); | |
151b2986 | 1962 | vmstate_unregister(s->vmstate, s); |
508ef936 | 1963 | eeprom93xx_free(s->eeprom); |
e00e365e | 1964 | qemu_del_vlan_client(&s->nic->nc); |
b946a153 AL |
1965 | return 0; |
1966 | } | |
1967 | ||
e00e365e MM |
1968 | static NetClientInfo net_eepro100_info = { |
1969 | .type = NET_CLIENT_TYPE_NIC, | |
1970 | .size = sizeof(NICState), | |
1971 | .can_receive = nic_can_receive, | |
1972 | .receive = nic_receive, | |
1973 | .cleanup = nic_cleanup, | |
1974 | }; | |
1975 | ||
81a322d4 | 1976 | static int nic_init(PCIDevice *pci_dev, uint32_t device) |
663e8e51 | 1977 | { |
273a2142 | 1978 | EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev); |
663e8e51 | 1979 | |
aac443e6 | 1980 | TRACE(OTHER, logout("\n")); |
663e8e51 | 1981 | |
663e8e51 | 1982 | s->device = device; |
663e8e51 TS |
1983 | |
1984 | pci_reset(s); | |
1985 | ||
1986 | /* Add 64 * 2 EEPROM. i82557 and i82558 support a 64 word EEPROM, | |
1987 | * i82559 and later support 64 or 256 word EEPROM. */ | |
1988 | s->eeprom = eeprom93xx_new(EEPROM_SIZE); | |
1989 | ||
1990 | /* Handler for memory-mapped I/O */ | |
273a2142 | 1991 | s->mmio_index = |
1eed09cb | 1992 | cpu_register_io_memory(pci_mmio_read, pci_mmio_write, s); |
663e8e51 | 1993 | |
273a2142 | 1994 | pci_register_bar(&s->dev, 0, PCI_MEM_SIZE, |
0392a017 IY |
1995 | PCI_BASE_ADDRESS_SPACE_MEMORY | |
1996 | PCI_BASE_ADDRESS_MEM_PREFETCH, pci_mmio_map); | |
1997 | pci_register_bar(&s->dev, 1, PCI_IO_SIZE, PCI_BASE_ADDRESS_SPACE_IO, | |
663e8e51 | 1998 | pci_map); |
0392a017 | 1999 | pci_register_bar(&s->dev, 2, PCI_FLASH_SIZE, PCI_BASE_ADDRESS_SPACE_MEMORY, |
663e8e51 TS |
2000 | pci_mmio_map); |
2001 | ||
508ef936 | 2002 | qemu_macaddr_default_if_unset(&s->conf.macaddr); |
ce0e58b3 | 2003 | logout("macaddr: %s\n", nic_dump(&s->conf.macaddr.a[0], 6)); |
663e8e51 TS |
2004 | assert(s->region[1] == 0); |
2005 | ||
2006 | nic_reset(s); | |
2007 | ||
e00e365e MM |
2008 | s->nic = qemu_new_nic(&net_eepro100_info, &s->conf, |
2009 | pci_dev->qdev.info->name, pci_dev->qdev.id, s); | |
663e8e51 | 2010 | |
e00e365e MM |
2011 | qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a); |
2012 | TRACE(OTHER, logout("%s\n", s->nic->nc.info_str)); | |
663e8e51 | 2013 | |
a08d4367 | 2014 | qemu_register_reset(nic_reset, s); |
663e8e51 | 2015 | |
151b2986 JQ |
2016 | s->vmstate = qemu_malloc(sizeof(vmstate_eepro100)); |
2017 | memcpy(s->vmstate, &vmstate_eepro100, sizeof(vmstate_eepro100)); | |
e00e365e | 2018 | s->vmstate->name = s->nic->nc.model; |
151b2986 | 2019 | vmstate_register(-1, s->vmstate, s); |
4e9df06a | 2020 | |
81a322d4 | 2021 | return 0; |
663e8e51 TS |
2022 | } |
2023 | ||
c4c270e2 SW |
2024 | static int pci_i82550_init(PCIDevice *pci_dev) |
2025 | { | |
2026 | return nic_init(pci_dev, i82550); | |
2027 | } | |
2028 | ||
2029 | static int pci_i82551_init(PCIDevice *pci_dev) | |
2030 | { | |
2031 | return nic_init(pci_dev, i82551); | |
2032 | } | |
2033 | ||
2034 | static int pci_i82557a_init(PCIDevice *pci_dev) | |
2035 | { | |
2036 | return nic_init(pci_dev, i82557A); | |
2037 | } | |
2038 | ||
2039 | static int pci_i82557b_init(PCIDevice *pci_dev) | |
2040 | { | |
2041 | return nic_init(pci_dev, i82557B); | |
2042 | } | |
2043 | ||
2044 | static int pci_i82557c_init(PCIDevice *pci_dev) | |
2045 | { | |
2046 | return nic_init(pci_dev, i82557C); | |
2047 | } | |
2048 | ||
2049 | static int pci_i82558a_init(PCIDevice *pci_dev) | |
2050 | { | |
2051 | return nic_init(pci_dev, i82558A); | |
2052 | } | |
2053 | ||
2054 | static int pci_i82558b_init(PCIDevice *pci_dev) | |
2055 | { | |
2056 | return nic_init(pci_dev, i82558B); | |
2057 | } | |
2058 | ||
2059 | static int pci_i82559a_init(PCIDevice *pci_dev) | |
2060 | { | |
2061 | return nic_init(pci_dev, i82559A); | |
2062 | } | |
2063 | ||
2064 | static int pci_i82559b_init(PCIDevice *pci_dev) | |
2065 | { | |
2066 | return nic_init(pci_dev, i82559B); | |
2067 | } | |
2068 | ||
2069 | static int pci_i82559c_init(PCIDevice *pci_dev) | |
9d07d757 | 2070 | { |
c4c270e2 | 2071 | return nic_init(pci_dev, i82559C); |
9d07d757 PB |
2072 | } |
2073 | ||
c4c270e2 | 2074 | static int pci_i82559er_init(PCIDevice *pci_dev) |
663e8e51 | 2075 | { |
c4c270e2 | 2076 | return nic_init(pci_dev, i82559ER); |
663e8e51 TS |
2077 | } |
2078 | ||
c4c270e2 | 2079 | static int pci_i82562_init(PCIDevice *pci_dev) |
663e8e51 | 2080 | { |
c4c270e2 | 2081 | return nic_init(pci_dev, i82562); |
663e8e51 TS |
2082 | } |
2083 | ||
0aab0d3a GH |
2084 | static PCIDeviceInfo eepro100_info[] = { |
2085 | { | |
c4c270e2 | 2086 | .qdev.name = "i82550", |
762401e2 | 2087 | .qdev.desc = "Intel i82550 Ethernet", |
c4c270e2 SW |
2088 | .qdev.size = sizeof(EEPRO100State), |
2089 | .init = pci_i82550_init, | |
6a90e308 | 2090 | .exit = pci_nic_uninit, |
da51e79b | 2091 | .romfile = "gpxe-eepro100-80861209.rom", |
508ef936 GH |
2092 | .qdev.props = (Property[]) { |
2093 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2094 | DEFINE_PROP_END_OF_LIST(), | |
2095 | }, | |
c4c270e2 | 2096 | },{ |
0aab0d3a | 2097 | .qdev.name = "i82551", |
762401e2 | 2098 | .qdev.desc = "Intel i82551 Ethernet", |
273a2142 | 2099 | .qdev.size = sizeof(EEPRO100State), |
0aab0d3a | 2100 | .init = pci_i82551_init, |
e3936fa5 | 2101 | .exit = pci_nic_uninit, |
da51e79b | 2102 | .romfile = "gpxe-eepro100-80861209.rom", |
508ef936 GH |
2103 | .qdev.props = (Property[]) { |
2104 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2105 | DEFINE_PROP_END_OF_LIST(), | |
2106 | }, | |
c4c270e2 SW |
2107 | },{ |
2108 | .qdev.name = "i82557a", | |
762401e2 | 2109 | .qdev.desc = "Intel i82557A Ethernet", |
c4c270e2 SW |
2110 | .qdev.size = sizeof(EEPRO100State), |
2111 | .init = pci_i82557a_init, | |
6a90e308 | 2112 | .exit = pci_nic_uninit, |
da51e79b | 2113 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2114 | .qdev.props = (Property[]) { |
2115 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2116 | DEFINE_PROP_END_OF_LIST(), | |
2117 | }, | |
0aab0d3a GH |
2118 | },{ |
2119 | .qdev.name = "i82557b", | |
762401e2 | 2120 | .qdev.desc = "Intel i82557B Ethernet", |
273a2142 | 2121 | .qdev.size = sizeof(EEPRO100State), |
0aab0d3a | 2122 | .init = pci_i82557b_init, |
e3936fa5 | 2123 | .exit = pci_nic_uninit, |
da51e79b | 2124 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2125 | .qdev.props = (Property[]) { |
2126 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2127 | DEFINE_PROP_END_OF_LIST(), | |
2128 | }, | |
c4c270e2 SW |
2129 | },{ |
2130 | .qdev.name = "i82557c", | |
762401e2 | 2131 | .qdev.desc = "Intel i82557C Ethernet", |
c4c270e2 SW |
2132 | .qdev.size = sizeof(EEPRO100State), |
2133 | .init = pci_i82557c_init, | |
6a90e308 | 2134 | .exit = pci_nic_uninit, |
da51e79b | 2135 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2136 | .qdev.props = (Property[]) { |
2137 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2138 | DEFINE_PROP_END_OF_LIST(), | |
2139 | }, | |
c4c270e2 SW |
2140 | },{ |
2141 | .qdev.name = "i82558a", | |
762401e2 | 2142 | .qdev.desc = "Intel i82558A Ethernet", |
c4c270e2 SW |
2143 | .qdev.size = sizeof(EEPRO100State), |
2144 | .init = pci_i82558a_init, | |
6a90e308 | 2145 | .exit = pci_nic_uninit, |
da51e79b | 2146 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2147 | .qdev.props = (Property[]) { |
2148 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2149 | DEFINE_PROP_END_OF_LIST(), | |
2150 | }, | |
c4c270e2 SW |
2151 | },{ |
2152 | .qdev.name = "i82558b", | |
762401e2 | 2153 | .qdev.desc = "Intel i82558B Ethernet", |
c4c270e2 SW |
2154 | .qdev.size = sizeof(EEPRO100State), |
2155 | .init = pci_i82558b_init, | |
6a90e308 | 2156 | .exit = pci_nic_uninit, |
da51e79b | 2157 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2158 | .qdev.props = (Property[]) { |
2159 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2160 | DEFINE_PROP_END_OF_LIST(), | |
2161 | }, | |
c4c270e2 SW |
2162 | },{ |
2163 | .qdev.name = "i82559a", | |
762401e2 | 2164 | .qdev.desc = "Intel i82559A Ethernet", |
c4c270e2 SW |
2165 | .qdev.size = sizeof(EEPRO100State), |
2166 | .init = pci_i82559a_init, | |
6a90e308 | 2167 | .exit = pci_nic_uninit, |
da51e79b | 2168 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2169 | .qdev.props = (Property[]) { |
2170 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2171 | DEFINE_PROP_END_OF_LIST(), | |
2172 | }, | |
c4c270e2 SW |
2173 | },{ |
2174 | .qdev.name = "i82559b", | |
762401e2 | 2175 | .qdev.desc = "Intel i82559B Ethernet", |
c4c270e2 SW |
2176 | .qdev.size = sizeof(EEPRO100State), |
2177 | .init = pci_i82559b_init, | |
6a90e308 | 2178 | .exit = pci_nic_uninit, |
da51e79b | 2179 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2180 | .qdev.props = (Property[]) { |
2181 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2182 | DEFINE_PROP_END_OF_LIST(), | |
2183 | }, | |
c4c270e2 SW |
2184 | },{ |
2185 | .qdev.name = "i82559c", | |
762401e2 | 2186 | .qdev.desc = "Intel i82559C Ethernet", |
c4c270e2 SW |
2187 | .qdev.size = sizeof(EEPRO100State), |
2188 | .init = pci_i82559c_init, | |
6a90e308 | 2189 | .exit = pci_nic_uninit, |
da51e79b | 2190 | .romfile = "gpxe-eepro100-80861229.rom", |
508ef936 GH |
2191 | .qdev.props = (Property[]) { |
2192 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2193 | DEFINE_PROP_END_OF_LIST(), | |
2194 | }, | |
0aab0d3a GH |
2195 | },{ |
2196 | .qdev.name = "i82559er", | |
762401e2 | 2197 | .qdev.desc = "Intel i82559ER Ethernet", |
273a2142 | 2198 | .qdev.size = sizeof(EEPRO100State), |
0aab0d3a | 2199 | .init = pci_i82559er_init, |
e3936fa5 | 2200 | .exit = pci_nic_uninit, |
da51e79b | 2201 | .romfile = "gpxe-eepro100-80861209.rom", |
508ef936 GH |
2202 | .qdev.props = (Property[]) { |
2203 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2204 | DEFINE_PROP_END_OF_LIST(), | |
2205 | }, | |
c4c270e2 SW |
2206 | },{ |
2207 | .qdev.name = "i82562", | |
762401e2 | 2208 | .qdev.desc = "Intel i82562 Ethernet", |
c4c270e2 SW |
2209 | .qdev.size = sizeof(EEPRO100State), |
2210 | .init = pci_i82562_init, | |
6a90e308 | 2211 | .exit = pci_nic_uninit, |
da51e79b | 2212 | .romfile = "gpxe-eepro100-80861209.rom", |
508ef936 GH |
2213 | .qdev.props = (Property[]) { |
2214 | DEFINE_NIC_PROPERTIES(EEPRO100State, conf), | |
2215 | DEFINE_PROP_END_OF_LIST(), | |
2216 | }, | |
0aab0d3a GH |
2217 | },{ |
2218 | /* end of list */ | |
2219 | } | |
2220 | }; | |
2221 | ||
9d07d757 | 2222 | static void eepro100_register_devices(void) |
663e8e51 | 2223 | { |
0aab0d3a | 2224 | pci_qdev_register_many(eepro100_info); |
663e8e51 TS |
2225 | } |
2226 | ||
9d07d757 | 2227 | device_init(eepro100_register_devices) |