1 /* 2 * SMSC LAN9118 Ethernet interface emulation 3 * 4 * Copyright (c) 2009 CodeSourcery, LLC. 5 * Written by Paul Brook 6 * 7 * This code is licensed under the GNU GPL v2 8 * 9 * Contributions after 2012-01-13 are licensed under the terms of the 10 * GNU GPL, version 2 or (at your option) any later version. 11 */ 12 13 #include "hw/sysbus.h" 14 #include "net/net.h" 15 #include "hw/devices.h" 16 #include "sysemu/sysemu.h" 17 #include "hw/ptimer.h" 18 /* For crc32 */ 19 #include <zlib.h> 20 21 //#define DEBUG_LAN9118 22 23 #ifdef DEBUG_LAN9118 24 #define DPRINTF(fmt, ...) \ 25 do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0) 26 #define BADF(fmt, ...) \ 27 do { hw_error("lan9118: error: " fmt , ## __VA_ARGS__);} while (0) 28 #else 29 #define DPRINTF(fmt, ...) do {} while(0) 30 #define BADF(fmt, ...) \ 31 do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0) 32 #endif 33 34 #define CSR_ID_REV 0x50 35 #define CSR_IRQ_CFG 0x54 36 #define CSR_INT_STS 0x58 37 #define CSR_INT_EN 0x5c 38 #define CSR_BYTE_TEST 0x64 39 #define CSR_FIFO_INT 0x68 40 #define CSR_RX_CFG 0x6c 41 #define CSR_TX_CFG 0x70 42 #define CSR_HW_CFG 0x74 43 #define CSR_RX_DP_CTRL 0x78 44 #define CSR_RX_FIFO_INF 0x7c 45 #define CSR_TX_FIFO_INF 0x80 46 #define CSR_PMT_CTRL 0x84 47 #define CSR_GPIO_CFG 0x88 48 #define CSR_GPT_CFG 0x8c 49 #define CSR_GPT_CNT 0x90 50 #define CSR_WORD_SWAP 0x98 51 #define CSR_FREE_RUN 0x9c 52 #define CSR_RX_DROP 0xa0 53 #define CSR_MAC_CSR_CMD 0xa4 54 #define CSR_MAC_CSR_DATA 0xa8 55 #define CSR_AFC_CFG 0xac 56 #define CSR_E2P_CMD 0xb0 57 #define CSR_E2P_DATA 0xb4 58 59 /* IRQ_CFG */ 60 #define IRQ_INT 0x00001000 61 #define IRQ_EN 0x00000100 62 #define IRQ_POL 0x00000010 63 #define IRQ_TYPE 0x00000001 64 65 /* INT_STS/INT_EN */ 66 #define SW_INT 0x80000000 67 #define TXSTOP_INT 0x02000000 68 #define RXSTOP_INT 0x01000000 69 #define RXDFH_INT 0x00800000 70 #define TX_IOC_INT 0x00200000 71 #define RXD_INT 0x00100000 72 #define GPT_INT 0x00080000 73 #define PHY_INT 0x00040000 74 #define PME_INT 0x00020000 75 #define TXSO_INT 0x00010000 76 #define RWT_INT 0x00008000 77 #define RXE_INT 0x00004000 78 #define TXE_INT 0x00002000 79 #define TDFU_INT 0x00000800 80 #define TDFO_INT 0x00000400 81 #define TDFA_INT 0x00000200 82 #define TSFF_INT 0x00000100 83 #define TSFL_INT 0x00000080 84 #define RXDF_INT 0x00000040 85 #define RDFL_INT 0x00000020 86 #define RSFF_INT 0x00000010 87 #define RSFL_INT 0x00000008 88 #define GPIO2_INT 0x00000004 89 #define GPIO1_INT 0x00000002 90 #define GPIO0_INT 0x00000001 91 #define RESERVED_INT 0x7c001000 92 93 #define MAC_CR 1 94 #define MAC_ADDRH 2 95 #define MAC_ADDRL 3 96 #define MAC_HASHH 4 97 #define MAC_HASHL 5 98 #define MAC_MII_ACC 6 99 #define MAC_MII_DATA 7 100 #define MAC_FLOW 8 101 #define MAC_VLAN1 9 /* TODO */ 102 #define MAC_VLAN2 10 /* TODO */ 103 #define MAC_WUFF 11 /* TODO */ 104 #define MAC_WUCSR 12 /* TODO */ 105 106 #define MAC_CR_RXALL 0x80000000 107 #define MAC_CR_RCVOWN 0x00800000 108 #define MAC_CR_LOOPBK 0x00200000 109 #define MAC_CR_FDPX 0x00100000 110 #define MAC_CR_MCPAS 0x00080000 111 #define MAC_CR_PRMS 0x00040000 112 #define MAC_CR_INVFILT 0x00020000 113 #define MAC_CR_PASSBAD 0x00010000 114 #define MAC_CR_HO 0x00008000 115 #define MAC_CR_HPFILT 0x00002000 116 #define MAC_CR_LCOLL 0x00001000 117 #define MAC_CR_BCAST 0x00000800 118 #define MAC_CR_DISRTY 0x00000400 119 #define MAC_CR_PADSTR 0x00000100 120 #define MAC_CR_BOLMT 0x000000c0 121 #define MAC_CR_DFCHK 0x00000020 122 #define MAC_CR_TXEN 0x00000008 123 #define MAC_CR_RXEN 0x00000004 124 #define MAC_CR_RESERVED 0x7f404213 125 126 #define PHY_INT_ENERGYON 0x80 127 #define PHY_INT_AUTONEG_COMPLETE 0x40 128 #define PHY_INT_FAULT 0x20 129 #define PHY_INT_DOWN 0x10 130 #define PHY_INT_AUTONEG_LP 0x08 131 #define PHY_INT_PARFAULT 0x04 132 #define PHY_INT_AUTONEG_PAGE 0x02 133 134 #define GPT_TIMER_EN 0x20000000 135 136 enum tx_state { 137 TX_IDLE, 138 TX_B, 139 TX_DATA 140 }; 141 142 typedef struct { 143 /* state is a tx_state but we can't put enums in VMStateDescriptions. */ 144 uint32_t state; 145 uint32_t cmd_a; 146 uint32_t cmd_b; 147 int32_t buffer_size; 148 int32_t offset; 149 int32_t pad; 150 int32_t fifo_used; 151 int32_t len; 152 uint8_t data[2048]; 153 } LAN9118Packet; 154 155 static const VMStateDescription vmstate_lan9118_packet = { 156 .name = "lan9118_packet", 157 .version_id = 1, 158 .minimum_version_id = 1, 159 .fields = (VMStateField[]) { 160 VMSTATE_UINT32(state, LAN9118Packet), 161 VMSTATE_UINT32(cmd_a, LAN9118Packet), 162 VMSTATE_UINT32(cmd_b, LAN9118Packet), 163 VMSTATE_INT32(buffer_size, LAN9118Packet), 164 VMSTATE_INT32(offset, LAN9118Packet), 165 VMSTATE_INT32(pad, LAN9118Packet), 166 VMSTATE_INT32(fifo_used, LAN9118Packet), 167 VMSTATE_INT32(len, LAN9118Packet), 168 VMSTATE_UINT8_ARRAY(data, LAN9118Packet, 2048), 169 VMSTATE_END_OF_LIST() 170 } 171 }; 172 173 #define TYPE_LAN9118 "lan9118" 174 #define LAN9118(obj) OBJECT_CHECK(lan9118_state, (obj), TYPE_LAN9118) 175 176 typedef struct { 177 SysBusDevice parent_obj; 178 179 NICState *nic; 180 NICConf conf; 181 qemu_irq irq; 182 MemoryRegion mmio; 183 ptimer_state *timer; 184 185 uint32_t irq_cfg; 186 uint32_t int_sts; 187 uint32_t int_en; 188 uint32_t fifo_int; 189 uint32_t rx_cfg; 190 uint32_t tx_cfg; 191 uint32_t hw_cfg; 192 uint32_t pmt_ctrl; 193 uint32_t gpio_cfg; 194 uint32_t gpt_cfg; 195 uint32_t word_swap; 196 uint32_t free_timer_start; 197 uint32_t mac_cmd; 198 uint32_t mac_data; 199 uint32_t afc_cfg; 200 uint32_t e2p_cmd; 201 uint32_t e2p_data; 202 203 uint32_t mac_cr; 204 uint32_t mac_hashh; 205 uint32_t mac_hashl; 206 uint32_t mac_mii_acc; 207 uint32_t mac_mii_data; 208 uint32_t mac_flow; 209 210 uint32_t phy_status; 211 uint32_t phy_control; 212 uint32_t phy_advertise; 213 uint32_t phy_int; 214 uint32_t phy_int_mask; 215 216 int32_t eeprom_writable; 217 uint8_t eeprom[128]; 218 219 int32_t tx_fifo_size; 220 LAN9118Packet *txp; 221 LAN9118Packet tx_packet; 222 223 int32_t tx_status_fifo_used; 224 int32_t tx_status_fifo_head; 225 uint32_t tx_status_fifo[512]; 226 227 int32_t rx_status_fifo_size; 228 int32_t rx_status_fifo_used; 229 int32_t rx_status_fifo_head; 230 uint32_t rx_status_fifo[896]; 231 int32_t rx_fifo_size; 232 int32_t rx_fifo_used; 233 int32_t rx_fifo_head; 234 uint32_t rx_fifo[3360]; 235 int32_t rx_packet_size_head; 236 int32_t rx_packet_size_tail; 237 int32_t rx_packet_size[1024]; 238 239 int32_t rxp_offset; 240 int32_t rxp_size; 241 int32_t rxp_pad; 242 243 uint32_t write_word_prev_offset; 244 uint32_t write_word_n; 245 uint16_t write_word_l; 246 uint16_t write_word_h; 247 uint32_t read_word_prev_offset; 248 uint32_t read_word_n; 249 uint32_t read_long; 250 251 uint32_t mode_16bit; 252 } lan9118_state; 253 254 static const VMStateDescription vmstate_lan9118 = { 255 .name = "lan9118", 256 .version_id = 2, 257 .minimum_version_id = 1, 258 .fields = (VMStateField[]) { 259 VMSTATE_PTIMER(timer, lan9118_state), 260 VMSTATE_UINT32(irq_cfg, lan9118_state), 261 VMSTATE_UINT32(int_sts, lan9118_state), 262 VMSTATE_UINT32(int_en, lan9118_state), 263 VMSTATE_UINT32(fifo_int, lan9118_state), 264 VMSTATE_UINT32(rx_cfg, lan9118_state), 265 VMSTATE_UINT32(tx_cfg, lan9118_state), 266 VMSTATE_UINT32(hw_cfg, lan9118_state), 267 VMSTATE_UINT32(pmt_ctrl, lan9118_state), 268 VMSTATE_UINT32(gpio_cfg, lan9118_state), 269 VMSTATE_UINT32(gpt_cfg, lan9118_state), 270 VMSTATE_UINT32(word_swap, lan9118_state), 271 VMSTATE_UINT32(free_timer_start, lan9118_state), 272 VMSTATE_UINT32(mac_cmd, lan9118_state), 273 VMSTATE_UINT32(mac_data, lan9118_state), 274 VMSTATE_UINT32(afc_cfg, lan9118_state), 275 VMSTATE_UINT32(e2p_cmd, lan9118_state), 276 VMSTATE_UINT32(e2p_data, lan9118_state), 277 VMSTATE_UINT32(mac_cr, lan9118_state), 278 VMSTATE_UINT32(mac_hashh, lan9118_state), 279 VMSTATE_UINT32(mac_hashl, lan9118_state), 280 VMSTATE_UINT32(mac_mii_acc, lan9118_state), 281 VMSTATE_UINT32(mac_mii_data, lan9118_state), 282 VMSTATE_UINT32(mac_flow, lan9118_state), 283 VMSTATE_UINT32(phy_status, lan9118_state), 284 VMSTATE_UINT32(phy_control, lan9118_state), 285 VMSTATE_UINT32(phy_advertise, lan9118_state), 286 VMSTATE_UINT32(phy_int, lan9118_state), 287 VMSTATE_UINT32(phy_int_mask, lan9118_state), 288 VMSTATE_INT32(eeprom_writable, lan9118_state), 289 VMSTATE_UINT8_ARRAY(eeprom, lan9118_state, 128), 290 VMSTATE_INT32(tx_fifo_size, lan9118_state), 291 /* txp always points at tx_packet so need not be saved */ 292 VMSTATE_STRUCT(tx_packet, lan9118_state, 0, 293 vmstate_lan9118_packet, LAN9118Packet), 294 VMSTATE_INT32(tx_status_fifo_used, lan9118_state), 295 VMSTATE_INT32(tx_status_fifo_head, lan9118_state), 296 VMSTATE_UINT32_ARRAY(tx_status_fifo, lan9118_state, 512), 297 VMSTATE_INT32(rx_status_fifo_size, lan9118_state), 298 VMSTATE_INT32(rx_status_fifo_used, lan9118_state), 299 VMSTATE_INT32(rx_status_fifo_head, lan9118_state), 300 VMSTATE_UINT32_ARRAY(rx_status_fifo, lan9118_state, 896), 301 VMSTATE_INT32(rx_fifo_size, lan9118_state), 302 VMSTATE_INT32(rx_fifo_used, lan9118_state), 303 VMSTATE_INT32(rx_fifo_head, lan9118_state), 304 VMSTATE_UINT32_ARRAY(rx_fifo, lan9118_state, 3360), 305 VMSTATE_INT32(rx_packet_size_head, lan9118_state), 306 VMSTATE_INT32(rx_packet_size_tail, lan9118_state), 307 VMSTATE_INT32_ARRAY(rx_packet_size, lan9118_state, 1024), 308 VMSTATE_INT32(rxp_offset, lan9118_state), 309 VMSTATE_INT32(rxp_size, lan9118_state), 310 VMSTATE_INT32(rxp_pad, lan9118_state), 311 VMSTATE_UINT32_V(write_word_prev_offset, lan9118_state, 2), 312 VMSTATE_UINT32_V(write_word_n, lan9118_state, 2), 313 VMSTATE_UINT16_V(write_word_l, lan9118_state, 2), 314 VMSTATE_UINT16_V(write_word_h, lan9118_state, 2), 315 VMSTATE_UINT32_V(read_word_prev_offset, lan9118_state, 2), 316 VMSTATE_UINT32_V(read_word_n, lan9118_state, 2), 317 VMSTATE_UINT32_V(read_long, lan9118_state, 2), 318 VMSTATE_UINT32_V(mode_16bit, lan9118_state, 2), 319 VMSTATE_END_OF_LIST() 320 } 321 }; 322 323 static void lan9118_update(lan9118_state *s) 324 { 325 int level; 326 327 /* TODO: Implement FIFO level IRQs. */ 328 level = (s->int_sts & s->int_en) != 0; 329 if (level) { 330 s->irq_cfg |= IRQ_INT; 331 } else { 332 s->irq_cfg &= ~IRQ_INT; 333 } 334 if ((s->irq_cfg & IRQ_EN) == 0) { 335 level = 0; 336 } 337 if ((s->irq_cfg & (IRQ_TYPE | IRQ_POL)) != (IRQ_TYPE | IRQ_POL)) { 338 /* Interrupt is active low unless we're configured as 339 * active-high polarity, push-pull type. 340 */ 341 level = !level; 342 } 343 qemu_set_irq(s->irq, level); 344 } 345 346 static void lan9118_mac_changed(lan9118_state *s) 347 { 348 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); 349 } 350 351 static void lan9118_reload_eeprom(lan9118_state *s) 352 { 353 int i; 354 if (s->eeprom[0] != 0xa5) { 355 s->e2p_cmd &= ~0x10; 356 DPRINTF("MACADDR load failed\n"); 357 return; 358 } 359 for (i = 0; i < 6; i++) { 360 s->conf.macaddr.a[i] = s->eeprom[i + 1]; 361 } 362 s->e2p_cmd |= 0x10; 363 DPRINTF("MACADDR loaded from eeprom\n"); 364 lan9118_mac_changed(s); 365 } 366 367 static void phy_update_irq(lan9118_state *s) 368 { 369 if (s->phy_int & s->phy_int_mask) { 370 s->int_sts |= PHY_INT; 371 } else { 372 s->int_sts &= ~PHY_INT; 373 } 374 lan9118_update(s); 375 } 376 377 static void phy_update_link(lan9118_state *s) 378 { 379 /* Autonegotiation status mirrors link status. */ 380 if (qemu_get_queue(s->nic)->link_down) { 381 s->phy_status &= ~0x0024; 382 s->phy_int |= PHY_INT_DOWN; 383 } else { 384 s->phy_status |= 0x0024; 385 s->phy_int |= PHY_INT_ENERGYON; 386 s->phy_int |= PHY_INT_AUTONEG_COMPLETE; 387 } 388 phy_update_irq(s); 389 } 390 391 static void lan9118_set_link(NetClientState *nc) 392 { 393 phy_update_link(qemu_get_nic_opaque(nc)); 394 } 395 396 static void phy_reset(lan9118_state *s) 397 { 398 s->phy_status = 0x7809; 399 s->phy_control = 0x3000; 400 s->phy_advertise = 0x01e1; 401 s->phy_int_mask = 0; 402 s->phy_int = 0; 403 phy_update_link(s); 404 } 405 406 static void lan9118_reset(DeviceState *d) 407 { 408 lan9118_state *s = LAN9118(d); 409 410 s->irq_cfg &= (IRQ_TYPE | IRQ_POL); 411 s->int_sts = 0; 412 s->int_en = 0; 413 s->fifo_int = 0x48000000; 414 s->rx_cfg = 0; 415 s->tx_cfg = 0; 416 s->hw_cfg = s->mode_16bit ? 0x00050000 : 0x00050004; 417 s->pmt_ctrl &= 0x45; 418 s->gpio_cfg = 0; 419 s->txp->fifo_used = 0; 420 s->txp->state = TX_IDLE; 421 s->txp->cmd_a = 0xffffffffu; 422 s->txp->cmd_b = 0xffffffffu; 423 s->txp->len = 0; 424 s->txp->fifo_used = 0; 425 s->tx_fifo_size = 4608; 426 s->tx_status_fifo_used = 0; 427 s->rx_status_fifo_size = 704; 428 s->rx_fifo_size = 2640; 429 s->rx_fifo_used = 0; 430 s->rx_status_fifo_size = 176; 431 s->rx_status_fifo_used = 0; 432 s->rxp_offset = 0; 433 s->rxp_size = 0; 434 s->rxp_pad = 0; 435 s->rx_packet_size_tail = s->rx_packet_size_head; 436 s->rx_packet_size[s->rx_packet_size_head] = 0; 437 s->mac_cmd = 0; 438 s->mac_data = 0; 439 s->afc_cfg = 0; 440 s->e2p_cmd = 0; 441 s->e2p_data = 0; 442 s->free_timer_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / 40; 443 444 ptimer_stop(s->timer); 445 ptimer_set_count(s->timer, 0xffff); 446 s->gpt_cfg = 0xffff; 447 448 s->mac_cr = MAC_CR_PRMS; 449 s->mac_hashh = 0; 450 s->mac_hashl = 0; 451 s->mac_mii_acc = 0; 452 s->mac_mii_data = 0; 453 s->mac_flow = 0; 454 455 s->read_word_n = 0; 456 s->write_word_n = 0; 457 458 phy_reset(s); 459 460 s->eeprom_writable = 0; 461 lan9118_reload_eeprom(s); 462 } 463 464 static int lan9118_can_receive(NetClientState *nc) 465 { 466 return 1; 467 } 468 469 static void rx_fifo_push(lan9118_state *s, uint32_t val) 470 { 471 int fifo_pos; 472 fifo_pos = s->rx_fifo_head + s->rx_fifo_used; 473 if (fifo_pos >= s->rx_fifo_size) 474 fifo_pos -= s->rx_fifo_size; 475 s->rx_fifo[fifo_pos] = val; 476 s->rx_fifo_used++; 477 } 478 479 /* Return nonzero if the packet is accepted by the filter. */ 480 static int lan9118_filter(lan9118_state *s, const uint8_t *addr) 481 { 482 int multicast; 483 uint32_t hash; 484 485 if (s->mac_cr & MAC_CR_PRMS) { 486 return 1; 487 } 488 if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff && 489 addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) { 490 return (s->mac_cr & MAC_CR_BCAST) == 0; 491 } 492 493 multicast = addr[0] & 1; 494 if (multicast &&s->mac_cr & MAC_CR_MCPAS) { 495 return 1; 496 } 497 if (multicast ? (s->mac_cr & MAC_CR_HPFILT) == 0 498 : (s->mac_cr & MAC_CR_HO) == 0) { 499 /* Exact matching. */ 500 hash = memcmp(addr, s->conf.macaddr.a, 6); 501 if (s->mac_cr & MAC_CR_INVFILT) { 502 return hash != 0; 503 } else { 504 return hash == 0; 505 } 506 } else { 507 /* Hash matching */ 508 hash = compute_mcast_idx(addr); 509 if (hash & 0x20) { 510 return (s->mac_hashh >> (hash & 0x1f)) & 1; 511 } else { 512 return (s->mac_hashl >> (hash & 0x1f)) & 1; 513 } 514 } 515 } 516 517 static ssize_t lan9118_receive(NetClientState *nc, const uint8_t *buf, 518 size_t size) 519 { 520 lan9118_state *s = qemu_get_nic_opaque(nc); 521 int fifo_len; 522 int offset; 523 int src_pos; 524 int n; 525 int filter; 526 uint32_t val; 527 uint32_t crc; 528 uint32_t status; 529 530 if ((s->mac_cr & MAC_CR_RXEN) == 0) { 531 return -1; 532 } 533 534 if (size >= 2048 || size < 14) { 535 return -1; 536 } 537 538 /* TODO: Implement FIFO overflow notification. */ 539 if (s->rx_status_fifo_used == s->rx_status_fifo_size) { 540 return -1; 541 } 542 543 filter = lan9118_filter(s, buf); 544 if (!filter && (s->mac_cr & MAC_CR_RXALL) == 0) { 545 return size; 546 } 547 548 offset = (s->rx_cfg >> 8) & 0x1f; 549 n = offset & 3; 550 fifo_len = (size + n + 3) >> 2; 551 /* Add a word for the CRC. */ 552 fifo_len++; 553 if (s->rx_fifo_size - s->rx_fifo_used < fifo_len) { 554 return -1; 555 } 556 557 DPRINTF("Got packet len:%d fifo:%d filter:%s\n", 558 (int)size, fifo_len, filter ? "pass" : "fail"); 559 val = 0; 560 crc = bswap32(crc32(~0, buf, size)); 561 for (src_pos = 0; src_pos < size; src_pos++) { 562 val = (val >> 8) | ((uint32_t)buf[src_pos] << 24); 563 n++; 564 if (n == 4) { 565 n = 0; 566 rx_fifo_push(s, val); 567 val = 0; 568 } 569 } 570 if (n) { 571 val >>= ((4 - n) * 8); 572 val |= crc << (n * 8); 573 rx_fifo_push(s, val); 574 val = crc >> ((4 - n) * 8); 575 rx_fifo_push(s, val); 576 } else { 577 rx_fifo_push(s, crc); 578 } 579 n = s->rx_status_fifo_head + s->rx_status_fifo_used; 580 if (n >= s->rx_status_fifo_size) { 581 n -= s->rx_status_fifo_size; 582 } 583 s->rx_packet_size[s->rx_packet_size_tail] = fifo_len; 584 s->rx_packet_size_tail = (s->rx_packet_size_tail + 1023) & 1023; 585 s->rx_status_fifo_used++; 586 587 status = (size + 4) << 16; 588 if (buf[0] == 0xff && buf[1] == 0xff && buf[2] == 0xff && 589 buf[3] == 0xff && buf[4] == 0xff && buf[5] == 0xff) { 590 status |= 0x00002000; 591 } else if (buf[0] & 1) { 592 status |= 0x00000400; 593 } 594 if (!filter) { 595 status |= 0x40000000; 596 } 597 s->rx_status_fifo[n] = status; 598 599 if (s->rx_status_fifo_used > (s->fifo_int & 0xff)) { 600 s->int_sts |= RSFL_INT; 601 } 602 lan9118_update(s); 603 604 return size; 605 } 606 607 static uint32_t rx_fifo_pop(lan9118_state *s) 608 { 609 int n; 610 uint32_t val; 611 612 if (s->rxp_size == 0 && s->rxp_pad == 0) { 613 s->rxp_size = s->rx_packet_size[s->rx_packet_size_head]; 614 s->rx_packet_size[s->rx_packet_size_head] = 0; 615 if (s->rxp_size != 0) { 616 s->rx_packet_size_head = (s->rx_packet_size_head + 1023) & 1023; 617 s->rxp_offset = (s->rx_cfg >> 10) & 7; 618 n = s->rxp_offset + s->rxp_size; 619 switch (s->rx_cfg >> 30) { 620 case 1: 621 n = (-n) & 3; 622 break; 623 case 2: 624 n = (-n) & 7; 625 break; 626 default: 627 n = 0; 628 break; 629 } 630 s->rxp_pad = n; 631 DPRINTF("Pop packet size:%d offset:%d pad: %d\n", 632 s->rxp_size, s->rxp_offset, s->rxp_pad); 633 } 634 } 635 if (s->rxp_offset > 0) { 636 s->rxp_offset--; 637 val = 0; 638 } else if (s->rxp_size > 0) { 639 s->rxp_size--; 640 val = s->rx_fifo[s->rx_fifo_head++]; 641 if (s->rx_fifo_head >= s->rx_fifo_size) { 642 s->rx_fifo_head -= s->rx_fifo_size; 643 } 644 s->rx_fifo_used--; 645 } else if (s->rxp_pad > 0) { 646 s->rxp_pad--; 647 val = 0; 648 } else { 649 DPRINTF("RX underflow\n"); 650 s->int_sts |= RXE_INT; 651 val = 0; 652 } 653 lan9118_update(s); 654 return val; 655 } 656 657 static void do_tx_packet(lan9118_state *s) 658 { 659 int n; 660 uint32_t status; 661 662 /* FIXME: Honor TX disable, and allow queueing of packets. */ 663 if (s->phy_control & 0x4000) { 664 /* This assumes the receive routine doesn't touch the VLANClient. */ 665 lan9118_receive(qemu_get_queue(s->nic), s->txp->data, s->txp->len); 666 } else { 667 qemu_send_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len); 668 } 669 s->txp->fifo_used = 0; 670 671 if (s->tx_status_fifo_used == 512) { 672 /* Status FIFO full */ 673 return; 674 } 675 /* Add entry to status FIFO. */ 676 status = s->txp->cmd_b & 0xffff0000u; 677 DPRINTF("Sent packet tag:%04x len %d\n", status >> 16, s->txp->len); 678 n = (s->tx_status_fifo_head + s->tx_status_fifo_used) & 511; 679 s->tx_status_fifo[n] = status; 680 s->tx_status_fifo_used++; 681 if (s->tx_status_fifo_used == 512) { 682 s->int_sts |= TSFF_INT; 683 /* TODO: Stop transmission. */ 684 } 685 } 686 687 static uint32_t rx_status_fifo_pop(lan9118_state *s) 688 { 689 uint32_t val; 690 691 val = s->rx_status_fifo[s->rx_status_fifo_head]; 692 if (s->rx_status_fifo_used != 0) { 693 s->rx_status_fifo_used--; 694 s->rx_status_fifo_head++; 695 if (s->rx_status_fifo_head >= s->rx_status_fifo_size) { 696 s->rx_status_fifo_head -= s->rx_status_fifo_size; 697 } 698 /* ??? What value should be returned when the FIFO is empty? */ 699 DPRINTF("RX status pop 0x%08x\n", val); 700 } 701 return val; 702 } 703 704 static uint32_t tx_status_fifo_pop(lan9118_state *s) 705 { 706 uint32_t val; 707 708 val = s->tx_status_fifo[s->tx_status_fifo_head]; 709 if (s->tx_status_fifo_used != 0) { 710 s->tx_status_fifo_used--; 711 s->tx_status_fifo_head = (s->tx_status_fifo_head + 1) & 511; 712 /* ??? What value should be returned when the FIFO is empty? */ 713 } 714 return val; 715 } 716 717 static void tx_fifo_push(lan9118_state *s, uint32_t val) 718 { 719 int n; 720 721 if (s->txp->fifo_used == s->tx_fifo_size) { 722 s->int_sts |= TDFO_INT; 723 return; 724 } 725 switch (s->txp->state) { 726 case TX_IDLE: 727 s->txp->cmd_a = val & 0x831f37ff; 728 s->txp->fifo_used++; 729 s->txp->state = TX_B; 730 s->txp->buffer_size = extract32(s->txp->cmd_a, 0, 11); 731 s->txp->offset = extract32(s->txp->cmd_a, 16, 5); 732 break; 733 case TX_B: 734 if (s->txp->cmd_a & 0x2000) { 735 /* First segment */ 736 s->txp->cmd_b = val; 737 s->txp->fifo_used++; 738 /* End alignment does not include command words. */ 739 n = (s->txp->buffer_size + s->txp->offset + 3) >> 2; 740 switch ((n >> 24) & 3) { 741 case 1: 742 n = (-n) & 3; 743 break; 744 case 2: 745 n = (-n) & 7; 746 break; 747 default: 748 n = 0; 749 } 750 s->txp->pad = n; 751 s->txp->len = 0; 752 } 753 DPRINTF("Block len:%d offset:%d pad:%d cmd %08x\n", 754 s->txp->buffer_size, s->txp->offset, s->txp->pad, 755 s->txp->cmd_a); 756 s->txp->state = TX_DATA; 757 break; 758 case TX_DATA: 759 if (s->txp->offset >= 4) { 760 s->txp->offset -= 4; 761 break; 762 } 763 if (s->txp->buffer_size <= 0 && s->txp->pad != 0) { 764 s->txp->pad--; 765 } else { 766 n = MIN(4, s->txp->buffer_size + s->txp->offset); 767 while (s->txp->offset) { 768 val >>= 8; 769 n--; 770 s->txp->offset--; 771 } 772 /* Documentation is somewhat unclear on the ordering of bytes 773 in FIFO words. Empirical results show it to be little-endian. 774 */ 775 /* TODO: FIFO overflow checking. */ 776 while (n--) { 777 s->txp->data[s->txp->len] = val & 0xff; 778 s->txp->len++; 779 val >>= 8; 780 s->txp->buffer_size--; 781 } 782 s->txp->fifo_used++; 783 } 784 if (s->txp->buffer_size <= 0 && s->txp->pad == 0) { 785 if (s->txp->cmd_a & 0x1000) { 786 do_tx_packet(s); 787 } 788 if (s->txp->cmd_a & 0x80000000) { 789 s->int_sts |= TX_IOC_INT; 790 } 791 s->txp->state = TX_IDLE; 792 } 793 break; 794 } 795 } 796 797 static uint32_t do_phy_read(lan9118_state *s, int reg) 798 { 799 uint32_t val; 800 801 switch (reg) { 802 case 0: /* Basic Control */ 803 return s->phy_control; 804 case 1: /* Basic Status */ 805 return s->phy_status; 806 case 2: /* ID1 */ 807 return 0x0007; 808 case 3: /* ID2 */ 809 return 0xc0d1; 810 case 4: /* Auto-neg advertisement */ 811 return s->phy_advertise; 812 case 5: /* Auto-neg Link Partner Ability */ 813 return 0x0f71; 814 case 6: /* Auto-neg Expansion */ 815 return 1; 816 /* TODO 17, 18, 27, 29, 30, 31 */ 817 case 29: /* Interrupt source. */ 818 val = s->phy_int; 819 s->phy_int = 0; 820 phy_update_irq(s); 821 return val; 822 case 30: /* Interrupt mask */ 823 return s->phy_int_mask; 824 default: 825 BADF("PHY read reg %d\n", reg); 826 return 0; 827 } 828 } 829 830 static void do_phy_write(lan9118_state *s, int reg, uint32_t val) 831 { 832 switch (reg) { 833 case 0: /* Basic Control */ 834 if (val & 0x8000) { 835 phy_reset(s); 836 break; 837 } 838 s->phy_control = val & 0x7980; 839 /* Complete autonegotiation immediately. */ 840 if (val & 0x1000) { 841 s->phy_status |= 0x0020; 842 } 843 break; 844 case 4: /* Auto-neg advertisement */ 845 s->phy_advertise = (val & 0x2d7f) | 0x80; 846 break; 847 /* TODO 17, 18, 27, 31 */ 848 case 30: /* Interrupt mask */ 849 s->phy_int_mask = val & 0xff; 850 phy_update_irq(s); 851 break; 852 default: 853 BADF("PHY write reg %d = 0x%04x\n", reg, val); 854 } 855 } 856 857 static void do_mac_write(lan9118_state *s, int reg, uint32_t val) 858 { 859 switch (reg) { 860 case MAC_CR: 861 if ((s->mac_cr & MAC_CR_RXEN) != 0 && (val & MAC_CR_RXEN) == 0) { 862 s->int_sts |= RXSTOP_INT; 863 } 864 s->mac_cr = val & ~MAC_CR_RESERVED; 865 DPRINTF("MAC_CR: %08x\n", val); 866 break; 867 case MAC_ADDRH: 868 s->conf.macaddr.a[4] = val & 0xff; 869 s->conf.macaddr.a[5] = (val >> 8) & 0xff; 870 lan9118_mac_changed(s); 871 break; 872 case MAC_ADDRL: 873 s->conf.macaddr.a[0] = val & 0xff; 874 s->conf.macaddr.a[1] = (val >> 8) & 0xff; 875 s->conf.macaddr.a[2] = (val >> 16) & 0xff; 876 s->conf.macaddr.a[3] = (val >> 24) & 0xff; 877 lan9118_mac_changed(s); 878 break; 879 case MAC_HASHH: 880 s->mac_hashh = val; 881 break; 882 case MAC_HASHL: 883 s->mac_hashl = val; 884 break; 885 case MAC_MII_ACC: 886 s->mac_mii_acc = val & 0xffc2; 887 if (val & 2) { 888 DPRINTF("PHY write %d = 0x%04x\n", 889 (val >> 6) & 0x1f, s->mac_mii_data); 890 do_phy_write(s, (val >> 6) & 0x1f, s->mac_mii_data); 891 } else { 892 s->mac_mii_data = do_phy_read(s, (val >> 6) & 0x1f); 893 DPRINTF("PHY read %d = 0x%04x\n", 894 (val >> 6) & 0x1f, s->mac_mii_data); 895 } 896 break; 897 case MAC_MII_DATA: 898 s->mac_mii_data = val & 0xffff; 899 break; 900 case MAC_FLOW: 901 s->mac_flow = val & 0xffff0000; 902 break; 903 case MAC_VLAN1: 904 /* Writing to this register changes a condition for 905 * FrameTooLong bit in rx_status. Since we do not set 906 * FrameTooLong anyway, just ignore write to this. 907 */ 908 break; 909 default: 910 hw_error("lan9118: Unimplemented MAC register write: %d = 0x%x\n", 911 s->mac_cmd & 0xf, val); 912 } 913 } 914 915 static uint32_t do_mac_read(lan9118_state *s, int reg) 916 { 917 switch (reg) { 918 case MAC_CR: 919 return s->mac_cr; 920 case MAC_ADDRH: 921 return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8); 922 case MAC_ADDRL: 923 return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8) 924 | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24); 925 case MAC_HASHH: 926 return s->mac_hashh; 927 break; 928 case MAC_HASHL: 929 return s->mac_hashl; 930 break; 931 case MAC_MII_ACC: 932 return s->mac_mii_acc; 933 case MAC_MII_DATA: 934 return s->mac_mii_data; 935 case MAC_FLOW: 936 return s->mac_flow; 937 default: 938 hw_error("lan9118: Unimplemented MAC register read: %d\n", 939 s->mac_cmd & 0xf); 940 } 941 } 942 943 static void lan9118_eeprom_cmd(lan9118_state *s, int cmd, int addr) 944 { 945 s->e2p_cmd = (s->e2p_cmd & 0x10) | (cmd << 28) | addr; 946 switch (cmd) { 947 case 0: 948 s->e2p_data = s->eeprom[addr]; 949 DPRINTF("EEPROM Read %d = 0x%02x\n", addr, s->e2p_data); 950 break; 951 case 1: 952 s->eeprom_writable = 0; 953 DPRINTF("EEPROM Write Disable\n"); 954 break; 955 case 2: /* EWEN */ 956 s->eeprom_writable = 1; 957 DPRINTF("EEPROM Write Enable\n"); 958 break; 959 case 3: /* WRITE */ 960 if (s->eeprom_writable) { 961 s->eeprom[addr] &= s->e2p_data; 962 DPRINTF("EEPROM Write %d = 0x%02x\n", addr, s->e2p_data); 963 } else { 964 DPRINTF("EEPROM Write %d (ignored)\n", addr); 965 } 966 break; 967 case 4: /* WRAL */ 968 if (s->eeprom_writable) { 969 for (addr = 0; addr < 128; addr++) { 970 s->eeprom[addr] &= s->e2p_data; 971 } 972 DPRINTF("EEPROM Write All 0x%02x\n", s->e2p_data); 973 } else { 974 DPRINTF("EEPROM Write All (ignored)\n"); 975 } 976 break; 977 case 5: /* ERASE */ 978 if (s->eeprom_writable) { 979 s->eeprom[addr] = 0xff; 980 DPRINTF("EEPROM Erase %d\n", addr); 981 } else { 982 DPRINTF("EEPROM Erase %d (ignored)\n", addr); 983 } 984 break; 985 case 6: /* ERAL */ 986 if (s->eeprom_writable) { 987 memset(s->eeprom, 0xff, 128); 988 DPRINTF("EEPROM Erase All\n"); 989 } else { 990 DPRINTF("EEPROM Erase All (ignored)\n"); 991 } 992 break; 993 case 7: /* RELOAD */ 994 lan9118_reload_eeprom(s); 995 break; 996 } 997 } 998 999 static void lan9118_tick(void *opaque) 1000 { 1001 lan9118_state *s = (lan9118_state *)opaque; 1002 if (s->int_en & GPT_INT) { 1003 s->int_sts |= GPT_INT; 1004 } 1005 lan9118_update(s); 1006 } 1007 1008 static void lan9118_writel(void *opaque, hwaddr offset, 1009 uint64_t val, unsigned size) 1010 { 1011 lan9118_state *s = (lan9118_state *)opaque; 1012 offset &= 0xff; 1013 1014 //DPRINTF("Write reg 0x%02x = 0x%08x\n", (int)offset, val); 1015 if (offset >= 0x20 && offset < 0x40) { 1016 /* TX FIFO */ 1017 tx_fifo_push(s, val); 1018 return; 1019 } 1020 switch (offset) { 1021 case CSR_IRQ_CFG: 1022 /* TODO: Implement interrupt deassertion intervals. */ 1023 val &= (IRQ_EN | IRQ_POL | IRQ_TYPE); 1024 s->irq_cfg = (s->irq_cfg & IRQ_INT) | val; 1025 break; 1026 case CSR_INT_STS: 1027 s->int_sts &= ~val; 1028 break; 1029 case CSR_INT_EN: 1030 s->int_en = val & ~RESERVED_INT; 1031 s->int_sts |= val & SW_INT; 1032 break; 1033 case CSR_FIFO_INT: 1034 DPRINTF("FIFO INT levels %08x\n", val); 1035 s->fifo_int = val; 1036 break; 1037 case CSR_RX_CFG: 1038 if (val & 0x8000) { 1039 /* RX_DUMP */ 1040 s->rx_fifo_used = 0; 1041 s->rx_status_fifo_used = 0; 1042 s->rx_packet_size_tail = s->rx_packet_size_head; 1043 s->rx_packet_size[s->rx_packet_size_head] = 0; 1044 } 1045 s->rx_cfg = val & 0xcfff1ff0; 1046 break; 1047 case CSR_TX_CFG: 1048 if (val & 0x8000) { 1049 s->tx_status_fifo_used = 0; 1050 } 1051 if (val & 0x4000) { 1052 s->txp->state = TX_IDLE; 1053 s->txp->fifo_used = 0; 1054 s->txp->cmd_a = 0xffffffff; 1055 } 1056 s->tx_cfg = val & 6; 1057 break; 1058 case CSR_HW_CFG: 1059 if (val & 1) { 1060 /* SRST */ 1061 lan9118_reset(DEVICE(s)); 1062 } else { 1063 s->hw_cfg = (val & 0x003f300) | (s->hw_cfg & 0x4); 1064 } 1065 break; 1066 case CSR_RX_DP_CTRL: 1067 if (val & 0x80000000) { 1068 /* Skip forward to next packet. */ 1069 s->rxp_pad = 0; 1070 s->rxp_offset = 0; 1071 if (s->rxp_size == 0) { 1072 /* Pop a word to start the next packet. */ 1073 rx_fifo_pop(s); 1074 s->rxp_pad = 0; 1075 s->rxp_offset = 0; 1076 } 1077 s->rx_fifo_head += s->rxp_size; 1078 if (s->rx_fifo_head >= s->rx_fifo_size) { 1079 s->rx_fifo_head -= s->rx_fifo_size; 1080 } 1081 } 1082 break; 1083 case CSR_PMT_CTRL: 1084 if (val & 0x400) { 1085 phy_reset(s); 1086 } 1087 s->pmt_ctrl &= ~0x34e; 1088 s->pmt_ctrl |= (val & 0x34e); 1089 break; 1090 case CSR_GPIO_CFG: 1091 /* Probably just enabling LEDs. */ 1092 s->gpio_cfg = val & 0x7777071f; 1093 break; 1094 case CSR_GPT_CFG: 1095 if ((s->gpt_cfg ^ val) & GPT_TIMER_EN) { 1096 if (val & GPT_TIMER_EN) { 1097 ptimer_set_count(s->timer, val & 0xffff); 1098 ptimer_run(s->timer, 0); 1099 } else { 1100 ptimer_stop(s->timer); 1101 ptimer_set_count(s->timer, 0xffff); 1102 } 1103 } 1104 s->gpt_cfg = val & (GPT_TIMER_EN | 0xffff); 1105 break; 1106 case CSR_WORD_SWAP: 1107 /* Ignored because we're in 32-bit mode. */ 1108 s->word_swap = val; 1109 break; 1110 case CSR_MAC_CSR_CMD: 1111 s->mac_cmd = val & 0x4000000f; 1112 if (val & 0x80000000) { 1113 if (val & 0x40000000) { 1114 s->mac_data = do_mac_read(s, val & 0xf); 1115 DPRINTF("MAC read %d = 0x%08x\n", val & 0xf, s->mac_data); 1116 } else { 1117 DPRINTF("MAC write %d = 0x%08x\n", val & 0xf, s->mac_data); 1118 do_mac_write(s, val & 0xf, s->mac_data); 1119 } 1120 } 1121 break; 1122 case CSR_MAC_CSR_DATA: 1123 s->mac_data = val; 1124 break; 1125 case CSR_AFC_CFG: 1126 s->afc_cfg = val & 0x00ffffff; 1127 break; 1128 case CSR_E2P_CMD: 1129 lan9118_eeprom_cmd(s, (val >> 28) & 7, val & 0x7f); 1130 break; 1131 case CSR_E2P_DATA: 1132 s->e2p_data = val & 0xff; 1133 break; 1134 1135 default: 1136 hw_error("lan9118_write: Bad reg 0x%x = %x\n", (int)offset, (int)val); 1137 break; 1138 } 1139 lan9118_update(s); 1140 } 1141 1142 static void lan9118_writew(void *opaque, hwaddr offset, 1143 uint32_t val) 1144 { 1145 lan9118_state *s = (lan9118_state *)opaque; 1146 offset &= 0xff; 1147 1148 if (s->write_word_prev_offset != (offset & ~0x3)) { 1149 /* New offset, reset word counter */ 1150 s->write_word_n = 0; 1151 s->write_word_prev_offset = offset & ~0x3; 1152 } 1153 1154 if (offset & 0x2) { 1155 s->write_word_h = val; 1156 } else { 1157 s->write_word_l = val; 1158 } 1159 1160 //DPRINTF("Writew reg 0x%02x = 0x%08x\n", (int)offset, val); 1161 s->write_word_n++; 1162 if (s->write_word_n == 2) { 1163 s->write_word_n = 0; 1164 lan9118_writel(s, offset & ~3, s->write_word_l + 1165 (s->write_word_h << 16), 4); 1166 } 1167 } 1168 1169 static void lan9118_16bit_mode_write(void *opaque, hwaddr offset, 1170 uint64_t val, unsigned size) 1171 { 1172 switch (size) { 1173 case 2: 1174 lan9118_writew(opaque, offset, (uint32_t)val); 1175 return; 1176 case 4: 1177 lan9118_writel(opaque, offset, val, size); 1178 return; 1179 } 1180 1181 hw_error("lan9118_write: Bad size 0x%x\n", size); 1182 } 1183 1184 static uint64_t lan9118_readl(void *opaque, hwaddr offset, 1185 unsigned size) 1186 { 1187 lan9118_state *s = (lan9118_state *)opaque; 1188 1189 //DPRINTF("Read reg 0x%02x\n", (int)offset); 1190 if (offset < 0x20) { 1191 /* RX FIFO */ 1192 return rx_fifo_pop(s); 1193 } 1194 switch (offset) { 1195 case 0x40: 1196 return rx_status_fifo_pop(s); 1197 case 0x44: 1198 return s->rx_status_fifo[s->tx_status_fifo_head]; 1199 case 0x48: 1200 return tx_status_fifo_pop(s); 1201 case 0x4c: 1202 return s->tx_status_fifo[s->tx_status_fifo_head]; 1203 case CSR_ID_REV: 1204 return 0x01180001; 1205 case CSR_IRQ_CFG: 1206 return s->irq_cfg; 1207 case CSR_INT_STS: 1208 return s->int_sts; 1209 case CSR_INT_EN: 1210 return s->int_en; 1211 case CSR_BYTE_TEST: 1212 return 0x87654321; 1213 case CSR_FIFO_INT: 1214 return s->fifo_int; 1215 case CSR_RX_CFG: 1216 return s->rx_cfg; 1217 case CSR_TX_CFG: 1218 return s->tx_cfg; 1219 case CSR_HW_CFG: 1220 return s->hw_cfg; 1221 case CSR_RX_DP_CTRL: 1222 return 0; 1223 case CSR_RX_FIFO_INF: 1224 return (s->rx_status_fifo_used << 16) | (s->rx_fifo_used << 2); 1225 case CSR_TX_FIFO_INF: 1226 return (s->tx_status_fifo_used << 16) 1227 | (s->tx_fifo_size - s->txp->fifo_used); 1228 case CSR_PMT_CTRL: 1229 return s->pmt_ctrl; 1230 case CSR_GPIO_CFG: 1231 return s->gpio_cfg; 1232 case CSR_GPT_CFG: 1233 return s->gpt_cfg; 1234 case CSR_GPT_CNT: 1235 return ptimer_get_count(s->timer); 1236 case CSR_WORD_SWAP: 1237 return s->word_swap; 1238 case CSR_FREE_RUN: 1239 return (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / 40) - s->free_timer_start; 1240 case CSR_RX_DROP: 1241 /* TODO: Implement dropped frames counter. */ 1242 return 0; 1243 case CSR_MAC_CSR_CMD: 1244 return s->mac_cmd; 1245 case CSR_MAC_CSR_DATA: 1246 return s->mac_data; 1247 case CSR_AFC_CFG: 1248 return s->afc_cfg; 1249 case CSR_E2P_CMD: 1250 return s->e2p_cmd; 1251 case CSR_E2P_DATA: 1252 return s->e2p_data; 1253 } 1254 hw_error("lan9118_read: Bad reg 0x%x\n", (int)offset); 1255 return 0; 1256 } 1257 1258 static uint32_t lan9118_readw(void *opaque, hwaddr offset) 1259 { 1260 lan9118_state *s = (lan9118_state *)opaque; 1261 uint32_t val; 1262 1263 if (s->read_word_prev_offset != (offset & ~0x3)) { 1264 /* New offset, reset word counter */ 1265 s->read_word_n = 0; 1266 s->read_word_prev_offset = offset & ~0x3; 1267 } 1268 1269 s->read_word_n++; 1270 if (s->read_word_n == 1) { 1271 s->read_long = lan9118_readl(s, offset & ~3, 4); 1272 } else { 1273 s->read_word_n = 0; 1274 } 1275 1276 if (offset & 2) { 1277 val = s->read_long >> 16; 1278 } else { 1279 val = s->read_long & 0xFFFF; 1280 } 1281 1282 //DPRINTF("Readw reg 0x%02x, val 0x%x\n", (int)offset, val); 1283 return val; 1284 } 1285 1286 static uint64_t lan9118_16bit_mode_read(void *opaque, hwaddr offset, 1287 unsigned size) 1288 { 1289 switch (size) { 1290 case 2: 1291 return lan9118_readw(opaque, offset); 1292 case 4: 1293 return lan9118_readl(opaque, offset, size); 1294 } 1295 1296 hw_error("lan9118_read: Bad size 0x%x\n", size); 1297 return 0; 1298 } 1299 1300 static const MemoryRegionOps lan9118_mem_ops = { 1301 .read = lan9118_readl, 1302 .write = lan9118_writel, 1303 .endianness = DEVICE_NATIVE_ENDIAN, 1304 }; 1305 1306 static const MemoryRegionOps lan9118_16bit_mem_ops = { 1307 .read = lan9118_16bit_mode_read, 1308 .write = lan9118_16bit_mode_write, 1309 .endianness = DEVICE_NATIVE_ENDIAN, 1310 }; 1311 1312 static void lan9118_cleanup(NetClientState *nc) 1313 { 1314 lan9118_state *s = qemu_get_nic_opaque(nc); 1315 1316 s->nic = NULL; 1317 } 1318 1319 static NetClientInfo net_lan9118_info = { 1320 .type = NET_CLIENT_OPTIONS_KIND_NIC, 1321 .size = sizeof(NICState), 1322 .can_receive = lan9118_can_receive, 1323 .receive = lan9118_receive, 1324 .cleanup = lan9118_cleanup, 1325 .link_status_changed = lan9118_set_link, 1326 }; 1327 1328 static int lan9118_init1(SysBusDevice *sbd) 1329 { 1330 DeviceState *dev = DEVICE(sbd); 1331 lan9118_state *s = LAN9118(dev); 1332 QEMUBH *bh; 1333 int i; 1334 const MemoryRegionOps *mem_ops = 1335 s->mode_16bit ? &lan9118_16bit_mem_ops : &lan9118_mem_ops; 1336 1337 memory_region_init_io(&s->mmio, OBJECT(dev), mem_ops, s, 1338 "lan9118-mmio", 0x100); 1339 sysbus_init_mmio(sbd, &s->mmio); 1340 sysbus_init_irq(sbd, &s->irq); 1341 qemu_macaddr_default_if_unset(&s->conf.macaddr); 1342 1343 s->nic = qemu_new_nic(&net_lan9118_info, &s->conf, 1344 object_get_typename(OBJECT(dev)), dev->id, s); 1345 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); 1346 s->eeprom[0] = 0xa5; 1347 for (i = 0; i < 6; i++) { 1348 s->eeprom[i + 1] = s->conf.macaddr.a[i]; 1349 } 1350 s->pmt_ctrl = 1; 1351 s->txp = &s->tx_packet; 1352 1353 bh = qemu_bh_new(lan9118_tick, s); 1354 s->timer = ptimer_init(bh); 1355 ptimer_set_freq(s->timer, 10000); 1356 ptimer_set_limit(s->timer, 0xffff, 1); 1357 1358 return 0; 1359 } 1360 1361 static Property lan9118_properties[] = { 1362 DEFINE_NIC_PROPERTIES(lan9118_state, conf), 1363 DEFINE_PROP_UINT32("mode_16bit", lan9118_state, mode_16bit, 0), 1364 DEFINE_PROP_END_OF_LIST(), 1365 }; 1366 1367 static void lan9118_class_init(ObjectClass *klass, void *data) 1368 { 1369 DeviceClass *dc = DEVICE_CLASS(klass); 1370 SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); 1371 1372 k->init = lan9118_init1; 1373 dc->reset = lan9118_reset; 1374 dc->props = lan9118_properties; 1375 dc->vmsd = &vmstate_lan9118; 1376 } 1377 1378 static const TypeInfo lan9118_info = { 1379 .name = TYPE_LAN9118, 1380 .parent = TYPE_SYS_BUS_DEVICE, 1381 .instance_size = sizeof(lan9118_state), 1382 .class_init = lan9118_class_init, 1383 }; 1384 1385 static void lan9118_register_types(void) 1386 { 1387 type_register_static(&lan9118_info); 1388 } 1389 1390 /* Legacy helper function. Should go away when machine config files are 1391 implemented. */ 1392 void lan9118_init(NICInfo *nd, uint32_t base, qemu_irq irq) 1393 { 1394 DeviceState *dev; 1395 SysBusDevice *s; 1396 1397 qemu_check_nic_model(nd, "lan9118"); 1398 dev = qdev_create(NULL, TYPE_LAN9118); 1399 qdev_set_nic_properties(dev, nd); 1400 qdev_init_nofail(dev); 1401 s = SYS_BUS_DEVICE(dev); 1402 sysbus_mmio_map(s, 0, base); 1403 sysbus_connect_irq(s, 0, irq); 1404 } 1405 1406 type_init(lan9118_register_types) 1407