2 * SMSC LAN9118 Ethernet interface emulation
4 * Copyright (c) 2009 CodeSourcery, LLC.
5 * Written by Paul Brook
7 * This code is licenced under the GNU GPL v2
17 //#define DEBUG_LAN9118
20 #define DPRINTF(fmt, ...) \
21 do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0)
22 #define BADF(fmt, ...) \
23 do { hw_error("lan9118: error: " fmt , ## __VA_ARGS__);} while (0)
25 #define DPRINTF(fmt, ...) do {} while(0)
26 #define BADF(fmt, ...) \
27 do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0)
30 #define CSR_ID_REV 0x50
31 #define CSR_IRQ_CFG 0x54
32 #define CSR_INT_STS 0x58
33 #define CSR_INT_EN 0x5c
34 #define CSR_BYTE_TEST 0x64
35 #define CSR_FIFO_INT 0x68
36 #define CSR_RX_CFG 0x6c
37 #define CSR_TX_CFG 0x70
38 #define CSR_HW_CFG 0x74
39 #define CSR_RX_DP_CTRL 0x78
40 #define CSR_RX_FIFO_INF 0x7c
41 #define CSR_TX_FIFO_INF 0x80
42 #define CSR_PMT_CTRL 0x84
43 #define CSR_GPIO_CFG 0x88
44 #define CSR_GPT_CFG 0x8c
45 #define CSR_GPT_CNT 0x90
46 #define CSR_WORD_SWAP 0x98
47 #define CSR_FREE_RUN 0x9c
48 #define CSR_RX_DROP 0xa0
49 #define CSR_MAC_CSR_CMD 0xa4
50 #define CSR_MAC_CSR_DATA 0xa8
51 #define CSR_AFC_CFG 0xac
52 #define CSR_E2P_CMD 0xb0
53 #define CSR_E2P_DATA 0xb4
56 #define IRQ_INT 0x00001000
57 #define IRQ_EN 0x00000100
58 #define IRQ_POL 0x00000010
59 #define IRQ_TYPE 0x00000001
62 #define SW_INT 0x80000000
63 #define TXSTOP_INT 0x02000000
64 #define RXSTOP_INT 0x01000000
65 #define RXDFH_INT 0x00800000
66 #define TX_IOC_INT 0x00200000
67 #define RXD_INT 0x00100000
68 #define GPT_INT 0x00080000
69 #define PHY_INT 0x00040000
70 #define PME_INT 0x00020000
71 #define TXSO_INT 0x00010000
72 #define RWT_INT 0x00008000
73 #define RXE_INT 0x00004000
74 #define TXE_INT 0x00002000
75 #define TDFU_INT 0x00000800
76 #define TDFO_INT 0x00000400
77 #define TDFA_INT 0x00000200
78 #define TSFF_INT 0x00000100
79 #define TSFL_INT 0x00000080
80 #define RXDF_INT 0x00000040
81 #define RDFL_INT 0x00000020
82 #define RSFF_INT 0x00000010
83 #define RSFL_INT 0x00000008
84 #define GPIO2_INT 0x00000004
85 #define GPIO1_INT 0x00000002
86 #define GPIO0_INT 0x00000001
87 #define RESERVED_INT 0x7c001000
95 #define MAC_MII_DATA 7
97 #define MAC_VLAN1 9 /* TODO */
98 #define MAC_VLAN2 10 /* TODO */
99 #define MAC_WUFF 11 /* TODO */
100 #define MAC_WUCSR 12 /* TODO */
102 #define MAC_CR_RXALL 0x80000000
103 #define MAC_CR_RCVOWN 0x00800000
104 #define MAC_CR_LOOPBK 0x00200000
105 #define MAC_CR_FDPX 0x00100000
106 #define MAC_CR_MCPAS 0x00080000
107 #define MAC_CR_PRMS 0x00040000
108 #define MAC_CR_INVFILT 0x00020000
109 #define MAC_CR_PASSBAD 0x00010000
110 #define MAC_CR_HO 0x00008000
111 #define MAC_CR_HPFILT 0x00002000
112 #define MAC_CR_LCOLL 0x00001000
113 #define MAC_CR_BCAST 0x00000800
114 #define MAC_CR_DISRTY 0x00000400
115 #define MAC_CR_PADSTR 0x00000100
116 #define MAC_CR_BOLMT 0x000000c0
117 #define MAC_CR_DFCHK 0x00000020
118 #define MAC_CR_TXEN 0x00000008
119 #define MAC_CR_RXEN 0x00000004
120 #define MAC_CR_RESERVED 0x7f404213
122 #define PHY_INT_ENERGYON 0x80
123 #define PHY_INT_AUTONEG_COMPLETE 0x40
124 #define PHY_INT_FAULT 0x20
125 #define PHY_INT_DOWN 0x10
126 #define PHY_INT_AUTONEG_LP 0x08
127 #define PHY_INT_PARFAULT 0x04
128 #define PHY_INT_AUTONEG_PAGE 0x02
130 #define GPT_TIMER_EN 0x20000000
169 uint32_t free_timer_start;
179 uint32_t mac_mii_acc;
180 uint32_t mac_mii_data;
184 uint32_t phy_control;
185 uint32_t phy_advertise;
187 uint32_t phy_int_mask;
194 LAN9118Packet tx_packet;
196 int tx_status_fifo_used;
197 int tx_status_fifo_head;
198 uint32_t tx_status_fifo[512];
200 int rx_status_fifo_size;
201 int rx_status_fifo_used;
202 int rx_status_fifo_head;
203 uint32_t rx_status_fifo[896];
207 uint32_t rx_fifo[3360];
208 int rx_packet_size_head;
209 int rx_packet_size_tail;
210 int rx_packet_size[1024];
217 static void lan9118_update(lan9118_state *s)
221 /* TODO: Implement FIFO level IRQs. */
222 level = (s->int_sts & s->int_en) != 0;
224 s->irq_cfg |= IRQ_INT;
226 s->irq_cfg &= ~IRQ_INT;
228 if ((s->irq_cfg & IRQ_EN) == 0) {
231 qemu_set_irq(s->irq, level);
234 static void lan9118_mac_changed(lan9118_state *s)
236 qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
239 static void lan9118_reload_eeprom(lan9118_state *s)
242 if (s->eeprom[0] != 0xa5) {
244 DPRINTF("MACADDR load failed\n");
247 for (i = 0; i < 6; i++) {
248 s->conf.macaddr.a[i] = s->eeprom[i + 1];
251 DPRINTF("MACADDR loaded from eeprom\n");
252 lan9118_mac_changed(s);
255 static void phy_update_irq(lan9118_state *s)
257 if (s->phy_int & s->phy_int_mask) {
258 s->int_sts |= PHY_INT;
260 s->int_sts &= ~PHY_INT;
265 static void phy_update_link(lan9118_state *s)
267 /* Autonegotiation status mirrors link status. */
268 if (s->nic->nc.link_down) {
269 s->phy_status &= ~0x0024;
270 s->phy_int |= PHY_INT_DOWN;
272 s->phy_status |= 0x0024;
273 s->phy_int |= PHY_INT_ENERGYON;
274 s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
279 static void lan9118_set_link(VLANClientState *nc)
281 phy_update_link(DO_UPCAST(NICState, nc, nc)->opaque);
284 static void phy_reset(lan9118_state *s)
286 s->phy_status = 0x7809;
287 s->phy_control = 0x3000;
288 s->phy_advertise = 0x01e1;
294 static void lan9118_reset(DeviceState *d)
296 lan9118_state *s = FROM_SYSBUS(lan9118_state, sysbus_from_qdev(d));
298 s->irq_cfg &= ~(IRQ_TYPE | IRQ_POL);
301 s->fifo_int = 0x48000000;
304 s->hw_cfg = 0x00050000;
307 s->txp->fifo_used = 0;
308 s->txp->state = TX_IDLE;
309 s->txp->cmd_a = 0xffffffffu;
310 s->txp->cmd_b = 0xffffffffu;
312 s->txp->fifo_used = 0;
313 s->tx_fifo_size = 4608;
314 s->tx_status_fifo_used = 0;
315 s->rx_status_fifo_size = 704;
316 s->rx_fifo_size = 2640;
318 s->rx_status_fifo_size = 176;
319 s->rx_status_fifo_used = 0;
323 s->rx_packet_size_tail = s->rx_packet_size_head;
324 s->rx_packet_size[s->rx_packet_size_head] = 0;
330 s->free_timer_start = qemu_get_clock_ns(vm_clock) / 40;
332 ptimer_stop(s->timer);
333 ptimer_set_count(s->timer, 0xffff);
336 s->mac_cr = MAC_CR_PRMS;
345 s->eeprom_writable = 0;
346 lan9118_reload_eeprom(s);
349 static int lan9118_can_receive(VLANClientState *nc)
354 static void rx_fifo_push(lan9118_state *s, uint32_t val)
357 fifo_pos = s->rx_fifo_head + s->rx_fifo_used;
358 if (fifo_pos >= s->rx_fifo_size)
359 fifo_pos -= s->rx_fifo_size;
360 s->rx_fifo[fifo_pos] = val;
364 /* Return nonzero if the packet is accepted by the filter. */
365 static int lan9118_filter(lan9118_state *s, const uint8_t *addr)
370 if (s->mac_cr & MAC_CR_PRMS) {
373 if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
374 addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
375 return (s->mac_cr & MAC_CR_BCAST) == 0;
378 multicast = addr[0] & 1;
379 if (multicast &&s->mac_cr & MAC_CR_MCPAS) {
382 if (multicast ? (s->mac_cr & MAC_CR_HPFILT) == 0
383 : (s->mac_cr & MAC_CR_HO) == 0) {
384 /* Exact matching. */
385 hash = memcmp(addr, s->conf.macaddr.a, 6);
386 if (s->mac_cr & MAC_CR_INVFILT) {
393 hash = (crc32(~0, addr, 6) >> 26);
395 return (s->mac_hashh >> (hash & 0x1f)) & 1;
397 return (s->mac_hashl >> (hash & 0x1f)) & 1;
402 static ssize_t lan9118_receive(VLANClientState *nc, const uint8_t *buf,
405 lan9118_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
415 if ((s->mac_cr & MAC_CR_RXEN) == 0) {
419 if (size >= 2048 || size < 14) {
423 /* TODO: Implement FIFO overflow notification. */
424 if (s->rx_status_fifo_used == s->rx_status_fifo_size) {
428 filter = lan9118_filter(s, buf);
429 if (!filter && (s->mac_cr & MAC_CR_RXALL) == 0) {
433 offset = (s->rx_cfg >> 8) & 0x1f;
435 fifo_len = (size + n + 3) >> 2;
436 /* Add a word for the CRC. */
438 if (s->rx_fifo_size - s->rx_fifo_used < fifo_len) {
442 DPRINTF("Got packet len:%d fifo:%d filter:%s\n",
443 (int)size, fifo_len, filter ? "pass" : "fail");
445 crc = bswap32(crc32(~0, buf, size));
446 for (src_pos = 0; src_pos < size; src_pos++) {
447 val = (val >> 8) | ((uint32_t)buf[src_pos] << 24);
451 rx_fifo_push(s, val);
456 val >>= ((4 - n) * 8);
457 val |= crc << (n * 8);
458 rx_fifo_push(s, val);
459 val = crc >> ((4 - n) * 8);
460 rx_fifo_push(s, val);
462 rx_fifo_push(s, crc);
464 n = s->rx_status_fifo_head + s->rx_status_fifo_used;
465 if (n >= s->rx_status_fifo_size) {
466 n -= s->rx_status_fifo_size;
468 s->rx_packet_size[s->rx_packet_size_tail] = fifo_len;
469 s->rx_packet_size_tail = (s->rx_packet_size_tail + 1023) & 1023;
470 s->rx_status_fifo_used++;
472 status = (size + 4) << 16;
473 if (buf[0] == 0xff && buf[1] == 0xff && buf[2] == 0xff &&
474 buf[3] == 0xff && buf[4] == 0xff && buf[5] == 0xff) {
475 status |= 0x00002000;
476 } else if (buf[0] & 1) {
477 status |= 0x00000400;
480 status |= 0x40000000;
482 s->rx_status_fifo[n] = status;
484 if (s->rx_status_fifo_used > (s->fifo_int & 0xff)) {
485 s->int_sts |= RSFL_INT;
492 static uint32_t rx_fifo_pop(lan9118_state *s)
497 if (s->rxp_size == 0 && s->rxp_pad == 0) {
498 s->rxp_size = s->rx_packet_size[s->rx_packet_size_head];
499 s->rx_packet_size[s->rx_packet_size_head] = 0;
500 if (s->rxp_size != 0) {
501 s->rx_packet_size_head = (s->rx_packet_size_head + 1023) & 1023;
502 s->rxp_offset = (s->rx_cfg >> 10) & 7;
503 n = s->rxp_offset + s->rxp_size;
504 switch (s->rx_cfg >> 30) {
516 DPRINTF("Pop packet size:%d offset:%d pad: %d\n",
517 s->rxp_size, s->rxp_offset, s->rxp_pad);
520 if (s->rxp_offset > 0) {
523 } else if (s->rxp_size > 0) {
525 val = s->rx_fifo[s->rx_fifo_head++];
526 if (s->rx_fifo_head >= s->rx_fifo_size) {
527 s->rx_fifo_head -= s->rx_fifo_size;
530 } else if (s->rxp_pad > 0) {
534 DPRINTF("RX underflow\n");
535 s->int_sts |= RXE_INT;
542 static void do_tx_packet(lan9118_state *s)
547 /* FIXME: Honor TX disable, and allow queueing of packets. */
548 if (s->phy_control & 0x4000) {
549 /* This assumes the receive routine doesn't touch the VLANClient. */
550 lan9118_receive(&s->nic->nc, s->txp->data, s->txp->len);
552 qemu_send_packet(&s->nic->nc, s->txp->data, s->txp->len);
554 s->txp->fifo_used = 0;
556 if (s->tx_status_fifo_used == 512) {
557 /* Status FIFO full */
560 /* Add entry to status FIFO. */
561 status = s->txp->cmd_b & 0xffff0000u;
562 DPRINTF("Sent packet tag:%04x len %d\n", status >> 16, s->txp->len);
563 n = (s->tx_status_fifo_head + s->tx_status_fifo_used) & 511;
564 s->tx_status_fifo[n] = status;
565 s->tx_status_fifo_used++;
566 if (s->tx_status_fifo_used == 512) {
567 s->int_sts |= TSFF_INT;
568 /* TODO: Stop transmission. */
572 static uint32_t rx_status_fifo_pop(lan9118_state *s)
576 val = s->rx_status_fifo[s->rx_status_fifo_head];
577 if (s->rx_status_fifo_used != 0) {
578 s->rx_status_fifo_used--;
579 s->rx_status_fifo_head++;
580 if (s->rx_status_fifo_head >= s->rx_status_fifo_size) {
581 s->rx_status_fifo_head -= s->rx_status_fifo_size;
583 /* ??? What value should be returned when the FIFO is empty? */
584 DPRINTF("RX status pop 0x%08x\n", val);
589 static uint32_t tx_status_fifo_pop(lan9118_state *s)
593 val = s->tx_status_fifo[s->tx_status_fifo_head];
594 if (s->tx_status_fifo_used != 0) {
595 s->tx_status_fifo_used--;
596 s->tx_status_fifo_head = (s->tx_status_fifo_head + 1) & 511;
597 /* ??? What value should be returned when the FIFO is empty? */
602 static void tx_fifo_push(lan9118_state *s, uint32_t val)
606 if (s->txp->fifo_used == s->tx_fifo_size) {
607 s->int_sts |= TDFO_INT;
610 switch (s->txp->state) {
612 s->txp->cmd_a = val & 0x831f37ff;
614 s->txp->state = TX_B;
617 if (s->txp->cmd_a & 0x2000) {
621 s->txp->buffer_size = s->txp->cmd_a & 0x7ff;
622 s->txp->offset = (s->txp->cmd_a >> 16) & 0x1f;
623 /* End alignment does not include command words. */
624 n = (s->txp->buffer_size + s->txp->offset + 3) >> 2;
625 switch ((n >> 24) & 3) {
638 DPRINTF("Block len:%d offset:%d pad:%d cmd %08x\n",
639 s->txp->buffer_size, s->txp->offset, s->txp->pad,
641 s->txp->state = TX_DATA;
644 if (s->txp->offset >= 4) {
648 if (s->txp->buffer_size <= 0 && s->txp->pad != 0) {
652 while (s->txp->offset) {
657 /* Documentation is somewhat unclear on the ordering of bytes
658 in FIFO words. Empirical results show it to be little-endian.
660 /* TODO: FIFO overflow checking. */
662 s->txp->data[s->txp->len] = val & 0xff;
665 s->txp->buffer_size--;
669 if (s->txp->buffer_size <= 0 && s->txp->pad == 0) {
670 if (s->txp->cmd_a & 0x1000) {
673 if (s->txp->cmd_a & 0x80000000) {
674 s->int_sts |= TX_IOC_INT;
676 s->txp->state = TX_IDLE;
682 static uint32_t do_phy_read(lan9118_state *s, int reg)
687 case 0: /* Basic Control */
688 return s->phy_control;
689 case 1: /* Basic Status */
690 return s->phy_status;
695 case 4: /* Auto-neg advertisment */
696 return s->phy_advertise;
697 case 5: /* Auto-neg Link Partner Ability */
699 case 6: /* Auto-neg Expansion */
701 /* TODO 17, 18, 27, 29, 30, 31 */
702 case 29: /* Interrupt source. */
707 case 30: /* Interrupt mask */
708 return s->phy_int_mask;
710 BADF("PHY read reg %d\n", reg);
715 static void do_phy_write(lan9118_state *s, int reg, uint32_t val)
718 case 0: /* Basic Control */
723 s->phy_control = val & 0x7980;
724 /* Complete autonegotiation imediately. */
726 s->phy_status |= 0x0020;
729 case 4: /* Auto-neg advertisment */
730 s->phy_advertise = (val & 0x2d7f) | 0x80;
732 /* TODO 17, 18, 27, 31 */
733 case 30: /* Interrupt mask */
734 s->phy_int_mask = val & 0xff;
738 BADF("PHY write reg %d = 0x%04x\n", reg, val);
742 static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
746 if ((s->mac_cr & MAC_CR_RXEN) != 0 && (val & MAC_CR_RXEN) == 0) {
747 s->int_sts |= RXSTOP_INT;
749 s->mac_cr = val & ~MAC_CR_RESERVED;
750 DPRINTF("MAC_CR: %08x\n", val);
753 s->conf.macaddr.a[4] = val & 0xff;
754 s->conf.macaddr.a[5] = (val >> 8) & 0xff;
755 lan9118_mac_changed(s);
758 s->conf.macaddr.a[0] = val & 0xff;
759 s->conf.macaddr.a[1] = (val >> 8) & 0xff;
760 s->conf.macaddr.a[2] = (val >> 16) & 0xff;
761 s->conf.macaddr.a[3] = (val >> 24) & 0xff;
762 lan9118_mac_changed(s);
771 s->mac_mii_acc = val & 0xffc2;
773 DPRINTF("PHY write %d = 0x%04x\n",
774 (val >> 6) & 0x1f, s->mac_mii_data);
775 do_phy_write(s, (val >> 6) & 0x1f, s->mac_mii_data);
777 s->mac_mii_data = do_phy_read(s, (val >> 6) & 0x1f);
778 DPRINTF("PHY read %d = 0x%04x\n",
779 (val >> 6) & 0x1f, s->mac_mii_data);
783 s->mac_mii_data = val & 0xffff;
786 s->mac_flow = val & 0xffff0000;
789 hw_error("lan9118: Unimplemented MAC register write: %d = 0x%x\n",
790 s->mac_cmd & 0xf, val);
794 static uint32_t do_mac_read(lan9118_state *s, int reg)
800 return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8);
802 return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8)
803 | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
811 return s->mac_mii_acc;
813 return s->mac_mii_data;
817 hw_error("lan9118: Unimplemented MAC register read: %d\n",
822 static void lan9118_eeprom_cmd(lan9118_state *s, int cmd, int addr)
824 s->e2p_cmd = (s->e2p_cmd & 0x10) | (cmd << 28) | addr;
827 s->e2p_data = s->eeprom[addr];
828 DPRINTF("EEPROM Read %d = 0x%02x\n", addr, s->e2p_data);
831 s->eeprom_writable = 0;
832 DPRINTF("EEPROM Write Disable\n");
835 s->eeprom_writable = 1;
836 DPRINTF("EEPROM Write Enable\n");
839 if (s->eeprom_writable) {
840 s->eeprom[addr] &= s->e2p_data;
841 DPRINTF("EEPROM Write %d = 0x%02x\n", addr, s->e2p_data);
843 DPRINTF("EEPROM Write %d (ignored)\n", addr);
847 if (s->eeprom_writable) {
848 for (addr = 0; addr < 128; addr++) {
849 s->eeprom[addr] &= s->e2p_data;
851 DPRINTF("EEPROM Write All 0x%02x\n", s->e2p_data);
853 DPRINTF("EEPROM Write All (ignored)\n");
856 if (s->eeprom_writable) {
857 s->eeprom[addr] = 0xff;
858 DPRINTF("EEPROM Erase %d\n", addr);
860 DPRINTF("EEPROM Erase %d (ignored)\n", addr);
864 if (s->eeprom_writable) {
865 memset(s->eeprom, 0xff, 128);
866 DPRINTF("EEPROM Erase All\n");
868 DPRINTF("EEPROM Erase All (ignored)\n");
872 lan9118_reload_eeprom(s);
877 static void lan9118_tick(void *opaque)
879 lan9118_state *s = (lan9118_state *)opaque;
880 if (s->int_en & GPT_INT) {
881 s->int_sts |= GPT_INT;
886 static void lan9118_writel(void *opaque, target_phys_addr_t offset,
889 lan9118_state *s = (lan9118_state *)opaque;
892 //DPRINTF("Write reg 0x%02x = 0x%08x\n", (int)offset, val);
893 if (offset >= 0x20 && offset < 0x40) {
895 tx_fifo_push(s, val);
900 /* TODO: Implement interrupt deassertion intervals. */
901 s->irq_cfg = (s->irq_cfg & IRQ_INT) | (val & IRQ_EN);
907 s->int_en = val & ~RESERVED_INT;
908 s->int_sts |= val & SW_INT;
911 DPRINTF("FIFO INT levels %08x\n", val);
918 s->rx_status_fifo_used = 0;
919 s->rx_packet_size_tail = s->rx_packet_size_head;
920 s->rx_packet_size[s->rx_packet_size_head] = 0;
922 s->rx_cfg = val & 0xcfff1ff0;
926 s->tx_status_fifo_used = 0;
929 s->txp->state = TX_IDLE;
930 s->txp->fifo_used = 0;
931 s->txp->cmd_a = 0xffffffff;
938 lan9118_reset(&s->busdev.qdev);
940 s->hw_cfg = val & 0x003f300;
944 if (val & 0x80000000) {
945 /* Skip forward to next packet. */
948 if (s->rxp_size == 0) {
949 /* Pop a word to start the next packet. */
954 s->rx_fifo_head += s->rxp_size;
955 if (s->rx_fifo_head >= s->rx_fifo_size) {
956 s->rx_fifo_head -= s->rx_fifo_size;
964 s->pmt_ctrl &= ~0x34e;
965 s->pmt_ctrl |= (val & 0x34e);
968 /* Probably just enabling LEDs. */
969 s->gpio_cfg = val & 0x7777071f;
972 if ((s->gpt_cfg ^ val) & GPT_TIMER_EN) {
973 if (val & GPT_TIMER_EN) {
974 ptimer_set_count(s->timer, val & 0xffff);
975 ptimer_run(s->timer, 0);
977 ptimer_stop(s->timer);
978 ptimer_set_count(s->timer, 0xffff);
981 s->gpt_cfg = val & (GPT_TIMER_EN | 0xffff);
984 /* Ignored because we're in 32-bit mode. */
987 case CSR_MAC_CSR_CMD:
988 s->mac_cmd = val & 0x4000000f;
989 if (val & 0x80000000) {
990 if (val & 0x40000000) {
991 s->mac_data = do_mac_read(s, val & 0xf);
992 DPRINTF("MAC read %d = 0x%08x\n", val & 0xf, s->mac_data);
994 DPRINTF("MAC write %d = 0x%08x\n", val & 0xf, s->mac_data);
995 do_mac_write(s, val & 0xf, s->mac_data);
999 case CSR_MAC_CSR_DATA:
1003 s->afc_cfg = val & 0x00ffffff;
1006 lan9118_eeprom_cmd(s, (val >> 28) & 7, val & 0x7f);
1009 s->e2p_data = val & 0xff;
1013 hw_error("lan9118_write: Bad reg 0x%x = %x\n", (int)offset, val);
1019 static uint32_t lan9118_readl(void *opaque, target_phys_addr_t offset)
1021 lan9118_state *s = (lan9118_state *)opaque;
1023 //DPRINTF("Read reg 0x%02x\n", (int)offset);
1024 if (offset < 0x20) {
1026 return rx_fifo_pop(s);
1030 return rx_status_fifo_pop(s);
1032 return s->rx_status_fifo[s->tx_status_fifo_head];
1034 return tx_status_fifo_pop(s);
1036 return s->tx_status_fifo[s->tx_status_fifo_head];
1054 return s->hw_cfg | 0x4;
1055 case CSR_RX_DP_CTRL:
1057 case CSR_RX_FIFO_INF:
1058 return (s->rx_status_fifo_used << 16) | (s->rx_fifo_used << 2);
1059 case CSR_TX_FIFO_INF:
1060 return (s->tx_status_fifo_used << 16)
1061 | (s->tx_fifo_size - s->txp->fifo_used);
1069 return ptimer_get_count(s->timer);
1071 return s->word_swap;
1073 return (qemu_get_clock_ns(vm_clock) / 40) - s->free_timer_start;
1075 /* TODO: Implement dropped frames counter. */
1077 case CSR_MAC_CSR_CMD:
1079 case CSR_MAC_CSR_DATA:
1088 hw_error("lan9118_read: Bad reg 0x%x\n", (int)offset);
1092 static CPUReadMemoryFunc * const lan9118_readfn[] = {
1098 static CPUWriteMemoryFunc * const lan9118_writefn[] = {
1104 static void lan9118_cleanup(VLANClientState *nc)
1106 lan9118_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
1111 static NetClientInfo net_lan9118_info = {
1112 .type = NET_CLIENT_TYPE_NIC,
1113 .size = sizeof(NICState),
1114 .can_receive = lan9118_can_receive,
1115 .receive = lan9118_receive,
1116 .cleanup = lan9118_cleanup,
1117 .link_status_changed = lan9118_set_link,
1120 static int lan9118_init1(SysBusDevice *dev)
1122 lan9118_state *s = FROM_SYSBUS(lan9118_state, dev);
1126 s->mmio_index = cpu_register_io_memory(lan9118_readfn,
1128 DEVICE_NATIVE_ENDIAN);
1129 sysbus_init_mmio(dev, 0x100, s->mmio_index);
1130 sysbus_init_irq(dev, &s->irq);
1131 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1133 s->nic = qemu_new_nic(&net_lan9118_info, &s->conf,
1134 dev->qdev.info->name, dev->qdev.id, s);
1135 qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
1136 s->eeprom[0] = 0xa5;
1137 for (i = 0; i < 6; i++) {
1138 s->eeprom[i + 1] = s->conf.macaddr.a[i];
1141 s->txp = &s->tx_packet;
1143 bh = qemu_bh_new(lan9118_tick, s);
1144 s->timer = ptimer_init(bh);
1145 ptimer_set_freq(s->timer, 10000);
1146 ptimer_set_limit(s->timer, 0xffff, 1);
1148 /* ??? Save/restore. */
1152 static SysBusDeviceInfo lan9118_info = {
1153 .init = lan9118_init1,
1154 .qdev.name = "lan9118",
1155 .qdev.size = sizeof(lan9118_state),
1156 .qdev.reset = lan9118_reset,
1157 .qdev.props = (Property[]) {
1158 DEFINE_NIC_PROPERTIES(lan9118_state, conf),
1159 DEFINE_PROP_END_OF_LIST(),
1163 static void lan9118_register_devices(void)
1165 sysbus_register_withprop(&lan9118_info);
1168 /* Legacy helper function. Should go away when machine config files are
1170 void lan9118_init(NICInfo *nd, uint32_t base, qemu_irq irq)
1175 qemu_check_nic_model(nd, "lan9118");
1176 dev = qdev_create(NULL, "lan9118");
1177 qdev_set_nic_properties(dev, nd);
1178 qdev_init_nofail(dev);
1179 s = sysbus_from_qdev(dev);
1180 sysbus_mmio_map(s, 0, base);
1181 sysbus_connect_irq(s, 0, irq);
1184 device_init(lan9118_register_devices)