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CommitLineData
2a424990
PB
1/*
2 * SMSC LAN9118 Ethernet interface emulation
3 *
4 * Copyright (c) 2009 CodeSourcery, LLC.
5 * Written by Paul Brook
6 *
8e31bf38 7 * This code is licensed under the GNU GPL v2
6b620ca3
PB
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.
2a424990
PB
11 */
12
e8d40465 13#include "qemu/osdep.h"
83c9f4ca 14#include "hw/sysbus.h"
d6454270 15#include "migration/vmstate.h"
1422e32d 16#include "net/net.h"
eedeaee7 17#include "net/eth.h"
650d103d 18#include "hw/hw.h"
64552b6b 19#include "hw/irq.h"
66b03dce 20#include "hw/net/lan9118.h"
83c9f4ca 21#include "hw/ptimer.h"
a27bd6c7 22#include "hw/qdev-properties.h"
03dd024f 23#include "qemu/log.h"
0b8fa32f 24#include "qemu/module.h"
2a424990
PB
25/* For crc32 */
26#include <zlib.h>
27
28//#define DEBUG_LAN9118
29
30#ifdef DEBUG_LAN9118
31#define DPRINTF(fmt, ...) \
32do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0)
33#define BADF(fmt, ...) \
34do { hw_error("lan9118: error: " fmt , ## __VA_ARGS__);} while (0)
35#else
36#define DPRINTF(fmt, ...) do {} while(0)
37#define BADF(fmt, ...) \
38do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0)
39#endif
40
41#define CSR_ID_REV 0x50
42#define CSR_IRQ_CFG 0x54
43#define CSR_INT_STS 0x58
44#define CSR_INT_EN 0x5c
45#define CSR_BYTE_TEST 0x64
46#define CSR_FIFO_INT 0x68
47#define CSR_RX_CFG 0x6c
48#define CSR_TX_CFG 0x70
49#define CSR_HW_CFG 0x74
50#define CSR_RX_DP_CTRL 0x78
51#define CSR_RX_FIFO_INF 0x7c
52#define CSR_TX_FIFO_INF 0x80
53#define CSR_PMT_CTRL 0x84
54#define CSR_GPIO_CFG 0x88
209bf965
PB
55#define CSR_GPT_CFG 0x8c
56#define CSR_GPT_CNT 0x90
2a424990
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57#define CSR_WORD_SWAP 0x98
58#define CSR_FREE_RUN 0x9c
59#define CSR_RX_DROP 0xa0
60#define CSR_MAC_CSR_CMD 0xa4
61#define CSR_MAC_CSR_DATA 0xa8
62#define CSR_AFC_CFG 0xac
63#define CSR_E2P_CMD 0xb0
64#define CSR_E2P_DATA 0xb4
65
12fdd928
AB
66#define E2P_CMD_MAC_ADDR_LOADED 0x100
67
2a424990 68/* IRQ_CFG */
209bf965 69#define IRQ_INT 0x00001000
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PB
70#define IRQ_EN 0x00000100
71#define IRQ_POL 0x00000010
72#define IRQ_TYPE 0x00000001
73
74/* INT_STS/INT_EN */
75#define SW_INT 0x80000000
76#define TXSTOP_INT 0x02000000
77#define RXSTOP_INT 0x01000000
78#define RXDFH_INT 0x00800000
79#define TX_IOC_INT 0x00200000
80#define RXD_INT 0x00100000
81#define GPT_INT 0x00080000
82#define PHY_INT 0x00040000
83#define PME_INT 0x00020000
84#define TXSO_INT 0x00010000
85#define RWT_INT 0x00008000
86#define RXE_INT 0x00004000
87#define TXE_INT 0x00002000
88#define TDFU_INT 0x00000800
89#define TDFO_INT 0x00000400
90#define TDFA_INT 0x00000200
91#define TSFF_INT 0x00000100
92#define TSFL_INT 0x00000080
93#define RXDF_INT 0x00000040
94#define RDFL_INT 0x00000020
95#define RSFF_INT 0x00000010
96#define RSFL_INT 0x00000008
97#define GPIO2_INT 0x00000004
98#define GPIO1_INT 0x00000002
99#define GPIO0_INT 0x00000001
100#define RESERVED_INT 0x7c001000
101
102#define MAC_CR 1
103#define MAC_ADDRH 2
104#define MAC_ADDRL 3
105#define MAC_HASHH 4
106#define MAC_HASHL 5
107#define MAC_MII_ACC 6
108#define MAC_MII_DATA 7
109#define MAC_FLOW 8
110#define MAC_VLAN1 9 /* TODO */
111#define MAC_VLAN2 10 /* TODO */
112#define MAC_WUFF 11 /* TODO */
113#define MAC_WUCSR 12 /* TODO */
114
115#define MAC_CR_RXALL 0x80000000
116#define MAC_CR_RCVOWN 0x00800000
117#define MAC_CR_LOOPBK 0x00200000
118#define MAC_CR_FDPX 0x00100000
119#define MAC_CR_MCPAS 0x00080000
120#define MAC_CR_PRMS 0x00040000
121#define MAC_CR_INVFILT 0x00020000
122#define MAC_CR_PASSBAD 0x00010000
123#define MAC_CR_HO 0x00008000
124#define MAC_CR_HPFILT 0x00002000
125#define MAC_CR_LCOLL 0x00001000
126#define MAC_CR_BCAST 0x00000800
127#define MAC_CR_DISRTY 0x00000400
128#define MAC_CR_PADSTR 0x00000100
129#define MAC_CR_BOLMT 0x000000c0
130#define MAC_CR_DFCHK 0x00000020
131#define MAC_CR_TXEN 0x00000008
132#define MAC_CR_RXEN 0x00000004
133#define MAC_CR_RESERVED 0x7f404213
134
209bf965
PB
135#define PHY_INT_ENERGYON 0x80
136#define PHY_INT_AUTONEG_COMPLETE 0x40
137#define PHY_INT_FAULT 0x20
138#define PHY_INT_DOWN 0x10
139#define PHY_INT_AUTONEG_LP 0x08
140#define PHY_INT_PARFAULT 0x04
141#define PHY_INT_AUTONEG_PAGE 0x02
142
143#define GPT_TIMER_EN 0x20000000
144
2a424990
PB
145enum tx_state {
146 TX_IDLE,
147 TX_B,
148 TX_DATA
149};
150
151typedef struct {
b09da0c3
PM
152 /* state is a tx_state but we can't put enums in VMStateDescriptions. */
153 uint32_t state;
2a424990
PB
154 uint32_t cmd_a;
155 uint32_t cmd_b;
b09da0c3
PM
156 int32_t buffer_size;
157 int32_t offset;
158 int32_t pad;
159 int32_t fifo_used;
160 int32_t len;
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PB
161 uint8_t data[2048];
162} LAN9118Packet;
163
b09da0c3
PM
164static const VMStateDescription vmstate_lan9118_packet = {
165 .name = "lan9118_packet",
166 .version_id = 1,
167 .minimum_version_id = 1,
168 .fields = (VMStateField[]) {
169 VMSTATE_UINT32(state, LAN9118Packet),
170 VMSTATE_UINT32(cmd_a, LAN9118Packet),
171 VMSTATE_UINT32(cmd_b, LAN9118Packet),
172 VMSTATE_INT32(buffer_size, LAN9118Packet),
173 VMSTATE_INT32(offset, LAN9118Packet),
174 VMSTATE_INT32(pad, LAN9118Packet),
175 VMSTATE_INT32(fifo_used, LAN9118Packet),
176 VMSTATE_INT32(len, LAN9118Packet),
177 VMSTATE_UINT8_ARRAY(data, LAN9118Packet, 2048),
178 VMSTATE_END_OF_LIST()
179 }
180};
181
3ff66d10
AF
182#define LAN9118(obj) OBJECT_CHECK(lan9118_state, (obj), TYPE_LAN9118)
183
2a424990 184typedef struct {
3ff66d10
AF
185 SysBusDevice parent_obj;
186
83b9f88c 187 NICState *nic;
2a424990
PB
188 NICConf conf;
189 qemu_irq irq;
f0cdd7a9 190 MemoryRegion mmio;
209bf965 191 ptimer_state *timer;
2a424990
PB
192
193 uint32_t irq_cfg;
194 uint32_t int_sts;
195 uint32_t int_en;
196 uint32_t fifo_int;
197 uint32_t rx_cfg;
198 uint32_t tx_cfg;
199 uint32_t hw_cfg;
200 uint32_t pmt_ctrl;
201 uint32_t gpio_cfg;
209bf965 202 uint32_t gpt_cfg;
2a424990
PB
203 uint32_t word_swap;
204 uint32_t free_timer_start;
205 uint32_t mac_cmd;
206 uint32_t mac_data;
207 uint32_t afc_cfg;
208 uint32_t e2p_cmd;
209 uint32_t e2p_data;
210
211 uint32_t mac_cr;
212 uint32_t mac_hashh;
213 uint32_t mac_hashl;
214 uint32_t mac_mii_acc;
215 uint32_t mac_mii_data;
216 uint32_t mac_flow;
217
218 uint32_t phy_status;
219 uint32_t phy_control;
220 uint32_t phy_advertise;
209bf965
PB
221 uint32_t phy_int;
222 uint32_t phy_int_mask;
2a424990 223
b09da0c3 224 int32_t eeprom_writable;
c46a3ea0 225 uint8_t eeprom[128];
2a424990 226
b09da0c3 227 int32_t tx_fifo_size;
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PB
228 LAN9118Packet *txp;
229 LAN9118Packet tx_packet;
230
b09da0c3
PM
231 int32_t tx_status_fifo_used;
232 int32_t tx_status_fifo_head;
2a424990
PB
233 uint32_t tx_status_fifo[512];
234
b09da0c3
PM
235 int32_t rx_status_fifo_size;
236 int32_t rx_status_fifo_used;
237 int32_t rx_status_fifo_head;
2a424990 238 uint32_t rx_status_fifo[896];
b09da0c3
PM
239 int32_t rx_fifo_size;
240 int32_t rx_fifo_used;
241 int32_t rx_fifo_head;
2a424990 242 uint32_t rx_fifo[3360];
b09da0c3
PM
243 int32_t rx_packet_size_head;
244 int32_t rx_packet_size_tail;
245 int32_t rx_packet_size[1024];
2a424990 246
b09da0c3
PM
247 int32_t rxp_offset;
248 int32_t rxp_size;
249 int32_t rxp_pad;
1248f8d4
EV
250
251 uint32_t write_word_prev_offset;
252 uint32_t write_word_n;
253 uint16_t write_word_l;
254 uint16_t write_word_h;
255 uint32_t read_word_prev_offset;
256 uint32_t read_word_n;
257 uint32_t read_long;
258
259 uint32_t mode_16bit;
2a424990
PB
260} lan9118_state;
261
b09da0c3
PM
262static const VMStateDescription vmstate_lan9118 = {
263 .name = "lan9118",
1248f8d4 264 .version_id = 2,
b09da0c3
PM
265 .minimum_version_id = 1,
266 .fields = (VMStateField[]) {
267 VMSTATE_PTIMER(timer, lan9118_state),
268 VMSTATE_UINT32(irq_cfg, lan9118_state),
269 VMSTATE_UINT32(int_sts, lan9118_state),
270 VMSTATE_UINT32(int_en, lan9118_state),
271 VMSTATE_UINT32(fifo_int, lan9118_state),
272 VMSTATE_UINT32(rx_cfg, lan9118_state),
273 VMSTATE_UINT32(tx_cfg, lan9118_state),
274 VMSTATE_UINT32(hw_cfg, lan9118_state),
275 VMSTATE_UINT32(pmt_ctrl, lan9118_state),
276 VMSTATE_UINT32(gpio_cfg, lan9118_state),
277 VMSTATE_UINT32(gpt_cfg, lan9118_state),
278 VMSTATE_UINT32(word_swap, lan9118_state),
279 VMSTATE_UINT32(free_timer_start, lan9118_state),
280 VMSTATE_UINT32(mac_cmd, lan9118_state),
281 VMSTATE_UINT32(mac_data, lan9118_state),
282 VMSTATE_UINT32(afc_cfg, lan9118_state),
283 VMSTATE_UINT32(e2p_cmd, lan9118_state),
284 VMSTATE_UINT32(e2p_data, lan9118_state),
285 VMSTATE_UINT32(mac_cr, lan9118_state),
286 VMSTATE_UINT32(mac_hashh, lan9118_state),
287 VMSTATE_UINT32(mac_hashl, lan9118_state),
288 VMSTATE_UINT32(mac_mii_acc, lan9118_state),
289 VMSTATE_UINT32(mac_mii_data, lan9118_state),
290 VMSTATE_UINT32(mac_flow, lan9118_state),
291 VMSTATE_UINT32(phy_status, lan9118_state),
292 VMSTATE_UINT32(phy_control, lan9118_state),
293 VMSTATE_UINT32(phy_advertise, lan9118_state),
294 VMSTATE_UINT32(phy_int, lan9118_state),
295 VMSTATE_UINT32(phy_int_mask, lan9118_state),
296 VMSTATE_INT32(eeprom_writable, lan9118_state),
297 VMSTATE_UINT8_ARRAY(eeprom, lan9118_state, 128),
298 VMSTATE_INT32(tx_fifo_size, lan9118_state),
299 /* txp always points at tx_packet so need not be saved */
300 VMSTATE_STRUCT(tx_packet, lan9118_state, 0,
301 vmstate_lan9118_packet, LAN9118Packet),
302 VMSTATE_INT32(tx_status_fifo_used, lan9118_state),
303 VMSTATE_INT32(tx_status_fifo_head, lan9118_state),
304 VMSTATE_UINT32_ARRAY(tx_status_fifo, lan9118_state, 512),
305 VMSTATE_INT32(rx_status_fifo_size, lan9118_state),
306 VMSTATE_INT32(rx_status_fifo_used, lan9118_state),
307 VMSTATE_INT32(rx_status_fifo_head, lan9118_state),
308 VMSTATE_UINT32_ARRAY(rx_status_fifo, lan9118_state, 896),
309 VMSTATE_INT32(rx_fifo_size, lan9118_state),
310 VMSTATE_INT32(rx_fifo_used, lan9118_state),
311 VMSTATE_INT32(rx_fifo_head, lan9118_state),
312 VMSTATE_UINT32_ARRAY(rx_fifo, lan9118_state, 3360),
313 VMSTATE_INT32(rx_packet_size_head, lan9118_state),
314 VMSTATE_INT32(rx_packet_size_tail, lan9118_state),
315 VMSTATE_INT32_ARRAY(rx_packet_size, lan9118_state, 1024),
316 VMSTATE_INT32(rxp_offset, lan9118_state),
317 VMSTATE_INT32(rxp_size, lan9118_state),
318 VMSTATE_INT32(rxp_pad, lan9118_state),
1248f8d4
EV
319 VMSTATE_UINT32_V(write_word_prev_offset, lan9118_state, 2),
320 VMSTATE_UINT32_V(write_word_n, lan9118_state, 2),
321 VMSTATE_UINT16_V(write_word_l, lan9118_state, 2),
322 VMSTATE_UINT16_V(write_word_h, lan9118_state, 2),
323 VMSTATE_UINT32_V(read_word_prev_offset, lan9118_state, 2),
324 VMSTATE_UINT32_V(read_word_n, lan9118_state, 2),
325 VMSTATE_UINT32_V(read_long, lan9118_state, 2),
326 VMSTATE_UINT32_V(mode_16bit, lan9118_state, 2),
b09da0c3
PM
327 VMSTATE_END_OF_LIST()
328 }
329};
330
2a424990
PB
331static void lan9118_update(lan9118_state *s)
332{
333 int level;
334
335 /* TODO: Implement FIFO level IRQs. */
336 level = (s->int_sts & s->int_en) != 0;
209bf965
PB
337 if (level) {
338 s->irq_cfg |= IRQ_INT;
339 } else {
340 s->irq_cfg &= ~IRQ_INT;
341 }
2a424990
PB
342 if ((s->irq_cfg & IRQ_EN) == 0) {
343 level = 0;
344 }
eb47d7c5
PM
345 if ((s->irq_cfg & (IRQ_TYPE | IRQ_POL)) != (IRQ_TYPE | IRQ_POL)) {
346 /* Interrupt is active low unless we're configured as
347 * active-high polarity, push-pull type.
348 */
349 level = !level;
350 }
2a424990
PB
351 qemu_set_irq(s->irq, level);
352}
353
354static void lan9118_mac_changed(lan9118_state *s)
355{
b356f76d 356 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
2a424990
PB
357}
358
359static void lan9118_reload_eeprom(lan9118_state *s)
360{
361 int i;
362 if (s->eeprom[0] != 0xa5) {
12fdd928 363 s->e2p_cmd &= ~E2P_CMD_MAC_ADDR_LOADED;
2a424990
PB
364 DPRINTF("MACADDR load failed\n");
365 return;
366 }
367 for (i = 0; i < 6; i++) {
368 s->conf.macaddr.a[i] = s->eeprom[i + 1];
369 }
12fdd928 370 s->e2p_cmd |= E2P_CMD_MAC_ADDR_LOADED;
2a424990
PB
371 DPRINTF("MACADDR loaded from eeprom\n");
372 lan9118_mac_changed(s);
373}
374
209bf965
PB
375static void phy_update_irq(lan9118_state *s)
376{
377 if (s->phy_int & s->phy_int_mask) {
378 s->int_sts |= PHY_INT;
379 } else {
380 s->int_sts &= ~PHY_INT;
381 }
382 lan9118_update(s);
383}
384
2a424990
PB
385static void phy_update_link(lan9118_state *s)
386{
387 /* Autonegotiation status mirrors link status. */
b356f76d 388 if (qemu_get_queue(s->nic)->link_down) {
2a424990 389 s->phy_status &= ~0x0024;
209bf965 390 s->phy_int |= PHY_INT_DOWN;
2a424990
PB
391 } else {
392 s->phy_status |= 0x0024;
209bf965
PB
393 s->phy_int |= PHY_INT_ENERGYON;
394 s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
2a424990 395 }
209bf965 396 phy_update_irq(s);
2a424990
PB
397}
398
4e68f7a0 399static void lan9118_set_link(NetClientState *nc)
2a424990 400{
cc1f0f45 401 phy_update_link(qemu_get_nic_opaque(nc));
2a424990
PB
402}
403
404static void phy_reset(lan9118_state *s)
405{
209bf965 406 s->phy_status = 0x7809;
2a424990
PB
407 s->phy_control = 0x3000;
408 s->phy_advertise = 0x01e1;
209bf965
PB
409 s->phy_int_mask = 0;
410 s->phy_int = 0;
2a424990
PB
411 phy_update_link(s);
412}
413
414static void lan9118_reset(DeviceState *d)
415{
3ff66d10
AF
416 lan9118_state *s = LAN9118(d);
417
eb47d7c5 418 s->irq_cfg &= (IRQ_TYPE | IRQ_POL);
2a424990
PB
419 s->int_sts = 0;
420 s->int_en = 0;
421 s->fifo_int = 0x48000000;
422 s->rx_cfg = 0;
423 s->tx_cfg = 0;
1248f8d4 424 s->hw_cfg = s->mode_16bit ? 0x00050000 : 0x00050004;
2a424990
PB
425 s->pmt_ctrl &= 0x45;
426 s->gpio_cfg = 0;
427 s->txp->fifo_used = 0;
428 s->txp->state = TX_IDLE;
429 s->txp->cmd_a = 0xffffffffu;
430 s->txp->cmd_b = 0xffffffffu;
431 s->txp->len = 0;
432 s->txp->fifo_used = 0;
433 s->tx_fifo_size = 4608;
434 s->tx_status_fifo_used = 0;
435 s->rx_status_fifo_size = 704;
436 s->rx_fifo_size = 2640;
437 s->rx_fifo_used = 0;
438 s->rx_status_fifo_size = 176;
439 s->rx_status_fifo_used = 0;
440 s->rxp_offset = 0;
441 s->rxp_size = 0;
442 s->rxp_pad = 0;
443 s->rx_packet_size_tail = s->rx_packet_size_head;
444 s->rx_packet_size[s->rx_packet_size_head] = 0;
445 s->mac_cmd = 0;
446 s->mac_data = 0;
447 s->afc_cfg = 0;
448 s->e2p_cmd = 0;
449 s->e2p_data = 0;
bc72ad67 450 s->free_timer_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / 40;
2a424990 451
88e4bd67 452 ptimer_transaction_begin(s->timer);
209bf965
PB
453 ptimer_stop(s->timer);
454 ptimer_set_count(s->timer, 0xffff);
88e4bd67 455 ptimer_transaction_commit(s->timer);
209bf965
PB
456 s->gpt_cfg = 0xffff;
457
2a424990
PB
458 s->mac_cr = MAC_CR_PRMS;
459 s->mac_hashh = 0;
460 s->mac_hashl = 0;
461 s->mac_mii_acc = 0;
462 s->mac_mii_data = 0;
463 s->mac_flow = 0;
464
1248f8d4
EV
465 s->read_word_n = 0;
466 s->write_word_n = 0;
467
2a424990
PB
468 phy_reset(s);
469
470 s->eeprom_writable = 0;
471 lan9118_reload_eeprom(s);
472}
473
2a424990
PB
474static void rx_fifo_push(lan9118_state *s, uint32_t val)
475{
476 int fifo_pos;
477 fifo_pos = s->rx_fifo_head + s->rx_fifo_used;
478 if (fifo_pos >= s->rx_fifo_size)
479 fifo_pos -= s->rx_fifo_size;
480 s->rx_fifo[fifo_pos] = val;
481 s->rx_fifo_used++;
482}
483
484/* Return nonzero if the packet is accepted by the filter. */
485static int lan9118_filter(lan9118_state *s, const uint8_t *addr)
486{
487 int multicast;
488 uint32_t hash;
489
490 if (s->mac_cr & MAC_CR_PRMS) {
491 return 1;
492 }
493 if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
494 addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
495 return (s->mac_cr & MAC_CR_BCAST) == 0;
496 }
497
498 multicast = addr[0] & 1;
499 if (multicast &&s->mac_cr & MAC_CR_MCPAS) {
500 return 1;
501 }
502 if (multicast ? (s->mac_cr & MAC_CR_HPFILT) == 0
503 : (s->mac_cr & MAC_CR_HO) == 0) {
504 /* Exact matching. */
505 hash = memcmp(addr, s->conf.macaddr.a, 6);
506 if (s->mac_cr & MAC_CR_INVFILT) {
507 return hash != 0;
508 } else {
509 return hash == 0;
510 }
511 } else {
512 /* Hash matching */
eedeaee7 513 hash = net_crc32(addr, ETH_ALEN) >> 26;
2a424990
PB
514 if (hash & 0x20) {
515 return (s->mac_hashh >> (hash & 0x1f)) & 1;
516 } else {
517 return (s->mac_hashl >> (hash & 0x1f)) & 1;
518 }
519 }
520}
521
4e68f7a0 522static ssize_t lan9118_receive(NetClientState *nc, const uint8_t *buf,
2a424990
PB
523 size_t size)
524{
cc1f0f45 525 lan9118_state *s = qemu_get_nic_opaque(nc);
2a424990
PB
526 int fifo_len;
527 int offset;
528 int src_pos;
529 int n;
530 int filter;
531 uint32_t val;
532 uint32_t crc;
533 uint32_t status;
534
535 if ((s->mac_cr & MAC_CR_RXEN) == 0) {
536 return -1;
537 }
538
539 if (size >= 2048 || size < 14) {
540 return -1;
541 }
542
543 /* TODO: Implement FIFO overflow notification. */
544 if (s->rx_status_fifo_used == s->rx_status_fifo_size) {
545 return -1;
546 }
547
548 filter = lan9118_filter(s, buf);
549 if (!filter && (s->mac_cr & MAC_CR_RXALL) == 0) {
550 return size;
551 }
552
553 offset = (s->rx_cfg >> 8) & 0x1f;
554 n = offset & 3;
555 fifo_len = (size + n + 3) >> 2;
556 /* Add a word for the CRC. */
557 fifo_len++;
558 if (s->rx_fifo_size - s->rx_fifo_used < fifo_len) {
559 return -1;
560 }
561
562 DPRINTF("Got packet len:%d fifo:%d filter:%s\n",
563 (int)size, fifo_len, filter ? "pass" : "fail");
564 val = 0;
565 crc = bswap32(crc32(~0, buf, size));
566 for (src_pos = 0; src_pos < size; src_pos++) {
567 val = (val >> 8) | ((uint32_t)buf[src_pos] << 24);
568 n++;
569 if (n == 4) {
570 n = 0;
571 rx_fifo_push(s, val);
572 val = 0;
573 }
574 }
575 if (n) {
576 val >>= ((4 - n) * 8);
577 val |= crc << (n * 8);
578 rx_fifo_push(s, val);
579 val = crc >> ((4 - n) * 8);
580 rx_fifo_push(s, val);
581 } else {
582 rx_fifo_push(s, crc);
583 }
584 n = s->rx_status_fifo_head + s->rx_status_fifo_used;
585 if (n >= s->rx_status_fifo_size) {
586 n -= s->rx_status_fifo_size;
587 }
588 s->rx_packet_size[s->rx_packet_size_tail] = fifo_len;
589 s->rx_packet_size_tail = (s->rx_packet_size_tail + 1023) & 1023;
590 s->rx_status_fifo_used++;
591
592 status = (size + 4) << 16;
593 if (buf[0] == 0xff && buf[1] == 0xff && buf[2] == 0xff &&
594 buf[3] == 0xff && buf[4] == 0xff && buf[5] == 0xff) {
595 status |= 0x00002000;
596 } else if (buf[0] & 1) {
597 status |= 0x00000400;
598 }
599 if (!filter) {
600 status |= 0x40000000;
601 }
602 s->rx_status_fifo[n] = status;
603
604 if (s->rx_status_fifo_used > (s->fifo_int & 0xff)) {
605 s->int_sts |= RSFL_INT;
606 }
607 lan9118_update(s);
608
609 return size;
610}
611
612static uint32_t rx_fifo_pop(lan9118_state *s)
613{
614 int n;
615 uint32_t val;
616
617 if (s->rxp_size == 0 && s->rxp_pad == 0) {
618 s->rxp_size = s->rx_packet_size[s->rx_packet_size_head];
619 s->rx_packet_size[s->rx_packet_size_head] = 0;
620 if (s->rxp_size != 0) {
621 s->rx_packet_size_head = (s->rx_packet_size_head + 1023) & 1023;
622 s->rxp_offset = (s->rx_cfg >> 10) & 7;
623 n = s->rxp_offset + s->rxp_size;
624 switch (s->rx_cfg >> 30) {
625 case 1:
626 n = (-n) & 3;
627 break;
628 case 2:
629 n = (-n) & 7;
630 break;
631 default:
632 n = 0;
633 break;
634 }
635 s->rxp_pad = n;
636 DPRINTF("Pop packet size:%d offset:%d pad: %d\n",
637 s->rxp_size, s->rxp_offset, s->rxp_pad);
638 }
639 }
640 if (s->rxp_offset > 0) {
641 s->rxp_offset--;
642 val = 0;
643 } else if (s->rxp_size > 0) {
644 s->rxp_size--;
645 val = s->rx_fifo[s->rx_fifo_head++];
646 if (s->rx_fifo_head >= s->rx_fifo_size) {
647 s->rx_fifo_head -= s->rx_fifo_size;
648 }
649 s->rx_fifo_used--;
650 } else if (s->rxp_pad > 0) {
651 s->rxp_pad--;
652 val = 0;
653 } else {
654 DPRINTF("RX underflow\n");
655 s->int_sts |= RXE_INT;
656 val = 0;
657 }
658 lan9118_update(s);
659 return val;
660}
661
662static void do_tx_packet(lan9118_state *s)
663{
664 int n;
665 uint32_t status;
666
667 /* FIXME: Honor TX disable, and allow queueing of packets. */
668 if (s->phy_control & 0x4000) {
669 /* This assumes the receive routine doesn't touch the VLANClient. */
b356f76d 670 lan9118_receive(qemu_get_queue(s->nic), s->txp->data, s->txp->len);
2a424990 671 } else {
b356f76d 672 qemu_send_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len);
2a424990
PB
673 }
674 s->txp->fifo_used = 0;
675
676 if (s->tx_status_fifo_used == 512) {
677 /* Status FIFO full */
678 return;
679 }
680 /* Add entry to status FIFO. */
681 status = s->txp->cmd_b & 0xffff0000u;
682 DPRINTF("Sent packet tag:%04x len %d\n", status >> 16, s->txp->len);
683 n = (s->tx_status_fifo_head + s->tx_status_fifo_used) & 511;
684 s->tx_status_fifo[n] = status;
685 s->tx_status_fifo_used++;
686 if (s->tx_status_fifo_used == 512) {
687 s->int_sts |= TSFF_INT;
688 /* TODO: Stop transmission. */
689 }
690}
691
692static uint32_t rx_status_fifo_pop(lan9118_state *s)
693{
694 uint32_t val;
695
696 val = s->rx_status_fifo[s->rx_status_fifo_head];
697 if (s->rx_status_fifo_used != 0) {
698 s->rx_status_fifo_used--;
699 s->rx_status_fifo_head++;
700 if (s->rx_status_fifo_head >= s->rx_status_fifo_size) {
701 s->rx_status_fifo_head -= s->rx_status_fifo_size;
702 }
703 /* ??? What value should be returned when the FIFO is empty? */
704 DPRINTF("RX status pop 0x%08x\n", val);
705 }
706 return val;
707}
708
709static uint32_t tx_status_fifo_pop(lan9118_state *s)
710{
711 uint32_t val;
712
713 val = s->tx_status_fifo[s->tx_status_fifo_head];
714 if (s->tx_status_fifo_used != 0) {
715 s->tx_status_fifo_used--;
716 s->tx_status_fifo_head = (s->tx_status_fifo_head + 1) & 511;
717 /* ??? What value should be returned when the FIFO is empty? */
718 }
719 return val;
720}
721
722static void tx_fifo_push(lan9118_state *s, uint32_t val)
723{
724 int n;
725
726 if (s->txp->fifo_used == s->tx_fifo_size) {
727 s->int_sts |= TDFO_INT;
728 return;
729 }
730 switch (s->txp->state) {
731 case TX_IDLE:
732 s->txp->cmd_a = val & 0x831f37ff;
733 s->txp->fifo_used++;
734 s->txp->state = TX_B;
2ad657e3
RF
735 s->txp->buffer_size = extract32(s->txp->cmd_a, 0, 11);
736 s->txp->offset = extract32(s->txp->cmd_a, 16, 5);
2a424990
PB
737 break;
738 case TX_B:
739 if (s->txp->cmd_a & 0x2000) {
740 /* First segment */
741 s->txp->cmd_b = val;
742 s->txp->fifo_used++;
2a424990
PB
743 /* End alignment does not include command words. */
744 n = (s->txp->buffer_size + s->txp->offset + 3) >> 2;
745 switch ((n >> 24) & 3) {
746 case 1:
747 n = (-n) & 3;
748 break;
749 case 2:
750 n = (-n) & 7;
751 break;
752 default:
753 n = 0;
754 }
755 s->txp->pad = n;
756 s->txp->len = 0;
757 }
758 DPRINTF("Block len:%d offset:%d pad:%d cmd %08x\n",
759 s->txp->buffer_size, s->txp->offset, s->txp->pad,
760 s->txp->cmd_a);
761 s->txp->state = TX_DATA;
762 break;
763 case TX_DATA:
764 if (s->txp->offset >= 4) {
765 s->txp->offset -= 4;
766 break;
767 }
768 if (s->txp->buffer_size <= 0 && s->txp->pad != 0) {
769 s->txp->pad--;
770 } else {
c444dfab 771 n = MIN(4, s->txp->buffer_size + s->txp->offset);
2a424990
PB
772 while (s->txp->offset) {
773 val >>= 8;
774 n--;
775 s->txp->offset--;
776 }
777 /* Documentation is somewhat unclear on the ordering of bytes
778 in FIFO words. Empirical results show it to be little-endian.
779 */
780 /* TODO: FIFO overflow checking. */
781 while (n--) {
782 s->txp->data[s->txp->len] = val & 0xff;
783 s->txp->len++;
784 val >>= 8;
785 s->txp->buffer_size--;
786 }
787 s->txp->fifo_used++;
788 }
789 if (s->txp->buffer_size <= 0 && s->txp->pad == 0) {
790 if (s->txp->cmd_a & 0x1000) {
791 do_tx_packet(s);
792 }
793 if (s->txp->cmd_a & 0x80000000) {
794 s->int_sts |= TX_IOC_INT;
795 }
796 s->txp->state = TX_IDLE;
797 }
798 break;
799 }
800}
801
802static uint32_t do_phy_read(lan9118_state *s, int reg)
803{
209bf965
PB
804 uint32_t val;
805
2a424990
PB
806 switch (reg) {
807 case 0: /* Basic Control */
808 return s->phy_control;
809 case 1: /* Basic Status */
810 return s->phy_status;
811 case 2: /* ID1 */
812 return 0x0007;
813 case 3: /* ID2 */
814 return 0xc0d1;
66a0a2cb 815 case 4: /* Auto-neg advertisement */
2a424990
PB
816 return s->phy_advertise;
817 case 5: /* Auto-neg Link Partner Ability */
818 return 0x0f71;
819 case 6: /* Auto-neg Expansion */
820 return 1;
821 /* TODO 17, 18, 27, 29, 30, 31 */
209bf965
PB
822 case 29: /* Interrupt source. */
823 val = s->phy_int;
824 s->phy_int = 0;
825 phy_update_irq(s);
826 return val;
827 case 30: /* Interrupt mask */
828 return s->phy_int_mask;
2a424990
PB
829 default:
830 BADF("PHY read reg %d\n", reg);
831 return 0;
832 }
833}
834
835static void do_phy_write(lan9118_state *s, int reg, uint32_t val)
836{
837 switch (reg) {
838 case 0: /* Basic Control */
839 if (val & 0x8000) {
840 phy_reset(s);
841 break;
842 }
843 s->phy_control = val & 0x7980;
4b71051e 844 /* Complete autonegotiation immediately. */
2a424990
PB
845 if (val & 0x1000) {
846 s->phy_status |= 0x0020;
847 }
848 break;
66a0a2cb 849 case 4: /* Auto-neg advertisement */
2a424990
PB
850 s->phy_advertise = (val & 0x2d7f) | 0x80;
851 break;
209bf965
PB
852 /* TODO 17, 18, 27, 31 */
853 case 30: /* Interrupt mask */
854 s->phy_int_mask = val & 0xff;
855 phy_update_irq(s);
856 break;
2a424990
PB
857 default:
858 BADF("PHY write reg %d = 0x%04x\n", reg, val);
859 }
860}
861
862static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
863{
864 switch (reg) {
865 case MAC_CR:
866 if ((s->mac_cr & MAC_CR_RXEN) != 0 && (val & MAC_CR_RXEN) == 0) {
867 s->int_sts |= RXSTOP_INT;
868 }
869 s->mac_cr = val & ~MAC_CR_RESERVED;
870 DPRINTF("MAC_CR: %08x\n", val);
871 break;
872 case MAC_ADDRH:
873 s->conf.macaddr.a[4] = val & 0xff;
874 s->conf.macaddr.a[5] = (val >> 8) & 0xff;
875 lan9118_mac_changed(s);
876 break;
877 case MAC_ADDRL:
878 s->conf.macaddr.a[0] = val & 0xff;
879 s->conf.macaddr.a[1] = (val >> 8) & 0xff;
880 s->conf.macaddr.a[2] = (val >> 16) & 0xff;
881 s->conf.macaddr.a[3] = (val >> 24) & 0xff;
882 lan9118_mac_changed(s);
883 break;
884 case MAC_HASHH:
885 s->mac_hashh = val;
886 break;
887 case MAC_HASHL:
888 s->mac_hashl = val;
889 break;
890 case MAC_MII_ACC:
891 s->mac_mii_acc = val & 0xffc2;
892 if (val & 2) {
893 DPRINTF("PHY write %d = 0x%04x\n",
894 (val >> 6) & 0x1f, s->mac_mii_data);
895 do_phy_write(s, (val >> 6) & 0x1f, s->mac_mii_data);
896 } else {
897 s->mac_mii_data = do_phy_read(s, (val >> 6) & 0x1f);
898 DPRINTF("PHY read %d = 0x%04x\n",
899 (val >> 6) & 0x1f, s->mac_mii_data);
900 }
901 break;
902 case MAC_MII_DATA:
903 s->mac_mii_data = val & 0xffff;
904 break;
905 case MAC_FLOW:
906 s->mac_flow = val & 0xffff0000;
907 break;
a0313c00
AN
908 case MAC_VLAN1:
909 /* Writing to this register changes a condition for
910 * FrameTooLong bit in rx_status. Since we do not set
911 * FrameTooLong anyway, just ignore write to this.
912 */
913 break;
2a424990 914 default:
52b4bb73
AB
915 qemu_log_mask(LOG_GUEST_ERROR,
916 "lan9118: Unimplemented MAC register write: %d = 0x%x\n",
2a424990
PB
917 s->mac_cmd & 0xf, val);
918 }
919}
920
921static uint32_t do_mac_read(lan9118_state *s, int reg)
922{
923 switch (reg) {
924 case MAC_CR:
925 return s->mac_cr;
926 case MAC_ADDRH:
927 return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8);
928 case MAC_ADDRL:
929 return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8)
930 | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
931 case MAC_HASHH:
932 return s->mac_hashh;
933 break;
934 case MAC_HASHL:
935 return s->mac_hashl;
936 break;
937 case MAC_MII_ACC:
938 return s->mac_mii_acc;
939 case MAC_MII_DATA:
940 return s->mac_mii_data;
941 case MAC_FLOW:
942 return s->mac_flow;
943 default:
52b4bb73
AB
944 qemu_log_mask(LOG_GUEST_ERROR,
945 "lan9118: Unimplemented MAC register read: %d\n",
2a424990 946 s->mac_cmd & 0xf);
52b4bb73 947 return 0;
2a424990
PB
948 }
949}
950
951static void lan9118_eeprom_cmd(lan9118_state *s, int cmd, int addr)
952{
12fdd928 953 s->e2p_cmd = (s->e2p_cmd & E2P_CMD_MAC_ADDR_LOADED) | (cmd << 28) | addr;
2a424990
PB
954 switch (cmd) {
955 case 0:
956 s->e2p_data = s->eeprom[addr];
957 DPRINTF("EEPROM Read %d = 0x%02x\n", addr, s->e2p_data);
958 break;
959 case 1:
960 s->eeprom_writable = 0;
961 DPRINTF("EEPROM Write Disable\n");
962 break;
963 case 2: /* EWEN */
964 s->eeprom_writable = 1;
965 DPRINTF("EEPROM Write Enable\n");
966 break;
967 case 3: /* WRITE */
968 if (s->eeprom_writable) {
969 s->eeprom[addr] &= s->e2p_data;
970 DPRINTF("EEPROM Write %d = 0x%02x\n", addr, s->e2p_data);
971 } else {
972 DPRINTF("EEPROM Write %d (ignored)\n", addr);
973 }
974 break;
975 case 4: /* WRAL */
976 if (s->eeprom_writable) {
977 for (addr = 0; addr < 128; addr++) {
978 s->eeprom[addr] &= s->e2p_data;
979 }
980 DPRINTF("EEPROM Write All 0x%02x\n", s->e2p_data);
981 } else {
982 DPRINTF("EEPROM Write All (ignored)\n");
983 }
0e3b800e 984 break;
2a424990
PB
985 case 5: /* ERASE */
986 if (s->eeprom_writable) {
987 s->eeprom[addr] = 0xff;
988 DPRINTF("EEPROM Erase %d\n", addr);
989 } else {
990 DPRINTF("EEPROM Erase %d (ignored)\n", addr);
991 }
992 break;
993 case 6: /* ERAL */
994 if (s->eeprom_writable) {
995 memset(s->eeprom, 0xff, 128);
996 DPRINTF("EEPROM Erase All\n");
997 } else {
998 DPRINTF("EEPROM Erase All (ignored)\n");
999 }
1000 break;
1001 case 7: /* RELOAD */
1002 lan9118_reload_eeprom(s);
1003 break;
1004 }
1005}
1006
209bf965
PB
1007static void lan9118_tick(void *opaque)
1008{
1009 lan9118_state *s = (lan9118_state *)opaque;
1010 if (s->int_en & GPT_INT) {
1011 s->int_sts |= GPT_INT;
1012 }
1013 lan9118_update(s);
1014}
1015
a8170e5e 1016static void lan9118_writel(void *opaque, hwaddr offset,
f0cdd7a9 1017 uint64_t val, unsigned size)
2a424990
PB
1018{
1019 lan9118_state *s = (lan9118_state *)opaque;
1020 offset &= 0xff;
1248f8d4 1021
2a424990
PB
1022 //DPRINTF("Write reg 0x%02x = 0x%08x\n", (int)offset, val);
1023 if (offset >= 0x20 && offset < 0x40) {
1024 /* TX FIFO */
1025 tx_fifo_push(s, val);
1026 return;
1027 }
1028 switch (offset) {
1029 case CSR_IRQ_CFG:
1030 /* TODO: Implement interrupt deassertion intervals. */
eb47d7c5
PM
1031 val &= (IRQ_EN | IRQ_POL | IRQ_TYPE);
1032 s->irq_cfg = (s->irq_cfg & IRQ_INT) | val;
2a424990
PB
1033 break;
1034 case CSR_INT_STS:
1035 s->int_sts &= ~val;
1036 break;
1037 case CSR_INT_EN:
1038 s->int_en = val & ~RESERVED_INT;
1039 s->int_sts |= val & SW_INT;
1040 break;
1041 case CSR_FIFO_INT:
1042 DPRINTF("FIFO INT levels %08x\n", val);
1043 s->fifo_int = val;
1044 break;
1045 case CSR_RX_CFG:
1046 if (val & 0x8000) {
1047 /* RX_DUMP */
1048 s->rx_fifo_used = 0;
1049 s->rx_status_fifo_used = 0;
1050 s->rx_packet_size_tail = s->rx_packet_size_head;
1051 s->rx_packet_size[s->rx_packet_size_head] = 0;
1052 }
1053 s->rx_cfg = val & 0xcfff1ff0;
1054 break;
1055 case CSR_TX_CFG:
1056 if (val & 0x8000) {
1057 s->tx_status_fifo_used = 0;
1058 }
1059 if (val & 0x4000) {
1060 s->txp->state = TX_IDLE;
1061 s->txp->fifo_used = 0;
1062 s->txp->cmd_a = 0xffffffff;
1063 }
1064 s->tx_cfg = val & 6;
1065 break;
1066 case CSR_HW_CFG:
1067 if (val & 1) {
1068 /* SRST */
3ff66d10 1069 lan9118_reset(DEVICE(s));
2a424990 1070 } else {
1248f8d4 1071 s->hw_cfg = (val & 0x003f300) | (s->hw_cfg & 0x4);
2a424990
PB
1072 }
1073 break;
1074 case CSR_RX_DP_CTRL:
1075 if (val & 0x80000000) {
1076 /* Skip forward to next packet. */
1077 s->rxp_pad = 0;
1078 s->rxp_offset = 0;
1079 if (s->rxp_size == 0) {
1080 /* Pop a word to start the next packet. */
1081 rx_fifo_pop(s);
1082 s->rxp_pad = 0;
1083 s->rxp_offset = 0;
1084 }
1085 s->rx_fifo_head += s->rxp_size;
1086 if (s->rx_fifo_head >= s->rx_fifo_size) {
1087 s->rx_fifo_head -= s->rx_fifo_size;
1088 }
1089 }
1090 break;
1091 case CSR_PMT_CTRL:
1092 if (val & 0x400) {
1093 phy_reset(s);
1094 }
1095 s->pmt_ctrl &= ~0x34e;
1096 s->pmt_ctrl |= (val & 0x34e);
1097 break;
1098 case CSR_GPIO_CFG:
1099 /* Probably just enabling LEDs. */
1100 s->gpio_cfg = val & 0x7777071f;
1101 break;
209bf965
PB
1102 case CSR_GPT_CFG:
1103 if ((s->gpt_cfg ^ val) & GPT_TIMER_EN) {
88e4bd67 1104 ptimer_transaction_begin(s->timer);
209bf965
PB
1105 if (val & GPT_TIMER_EN) {
1106 ptimer_set_count(s->timer, val & 0xffff);
1107 ptimer_run(s->timer, 0);
1108 } else {
1109 ptimer_stop(s->timer);
1110 ptimer_set_count(s->timer, 0xffff);
1111 }
88e4bd67 1112 ptimer_transaction_commit(s->timer);
209bf965
PB
1113 }
1114 s->gpt_cfg = val & (GPT_TIMER_EN | 0xffff);
1115 break;
2a424990
PB
1116 case CSR_WORD_SWAP:
1117 /* Ignored because we're in 32-bit mode. */
1118 s->word_swap = val;
1119 break;
1120 case CSR_MAC_CSR_CMD:
1121 s->mac_cmd = val & 0x4000000f;
1122 if (val & 0x80000000) {
1123 if (val & 0x40000000) {
1124 s->mac_data = do_mac_read(s, val & 0xf);
1125 DPRINTF("MAC read %d = 0x%08x\n", val & 0xf, s->mac_data);
1126 } else {
1127 DPRINTF("MAC write %d = 0x%08x\n", val & 0xf, s->mac_data);
1128 do_mac_write(s, val & 0xf, s->mac_data);
1129 }
1130 }
1131 break;
1132 case CSR_MAC_CSR_DATA:
1133 s->mac_data = val;
1134 break;
1135 case CSR_AFC_CFG:
1136 s->afc_cfg = val & 0x00ffffff;
1137 break;
1138 case CSR_E2P_CMD:
c46a3ea0 1139 lan9118_eeprom_cmd(s, (val >> 28) & 7, val & 0x7f);
2a424990
PB
1140 break;
1141 case CSR_E2P_DATA:
1142 s->e2p_data = val & 0xff;
1143 break;
1144
1145 default:
52b4bb73
AB
1146 qemu_log_mask(LOG_GUEST_ERROR, "lan9118_write: Bad reg 0x%x = %x\n",
1147 (int)offset, (int)val);
2a424990
PB
1148 break;
1149 }
1150 lan9118_update(s);
1151}
1152
a8170e5e 1153static void lan9118_writew(void *opaque, hwaddr offset,
1248f8d4
EV
1154 uint32_t val)
1155{
1156 lan9118_state *s = (lan9118_state *)opaque;
1157 offset &= 0xff;
1158
1159 if (s->write_word_prev_offset != (offset & ~0x3)) {
1160 /* New offset, reset word counter */
1161 s->write_word_n = 0;
1162 s->write_word_prev_offset = offset & ~0x3;
1163 }
1164
1165 if (offset & 0x2) {
1166 s->write_word_h = val;
1167 } else {
1168 s->write_word_l = val;
1169 }
1170
1171 //DPRINTF("Writew reg 0x%02x = 0x%08x\n", (int)offset, val);
1172 s->write_word_n++;
1173 if (s->write_word_n == 2) {
1174 s->write_word_n = 0;
1175 lan9118_writel(s, offset & ~3, s->write_word_l +
1176 (s->write_word_h << 16), 4);
1177 }
1178}
1179
a8170e5e 1180static void lan9118_16bit_mode_write(void *opaque, hwaddr offset,
1248f8d4
EV
1181 uint64_t val, unsigned size)
1182{
1183 switch (size) {
1184 case 2:
0ed8b6f6
BS
1185 lan9118_writew(opaque, offset, (uint32_t)val);
1186 return;
1248f8d4 1187 case 4:
0ed8b6f6
BS
1188 lan9118_writel(opaque, offset, val, size);
1189 return;
1248f8d4
EV
1190 }
1191
1192 hw_error("lan9118_write: Bad size 0x%x\n", size);
1193}
1194
a8170e5e 1195static uint64_t lan9118_readl(void *opaque, hwaddr offset,
f0cdd7a9 1196 unsigned size)
2a424990
PB
1197{
1198 lan9118_state *s = (lan9118_state *)opaque;
1199
1200 //DPRINTF("Read reg 0x%02x\n", (int)offset);
1201 if (offset < 0x20) {
1202 /* RX FIFO */
1203 return rx_fifo_pop(s);
1204 }
1205 switch (offset) {
1206 case 0x40:
1207 return rx_status_fifo_pop(s);
1208 case 0x44:
1209 return s->rx_status_fifo[s->tx_status_fifo_head];
1210 case 0x48:
1211 return tx_status_fifo_pop(s);
1212 case 0x4c:
1213 return s->tx_status_fifo[s->tx_status_fifo_head];
1214 case CSR_ID_REV:
1215 return 0x01180001;
1216 case CSR_IRQ_CFG:
1217 return s->irq_cfg;
1218 case CSR_INT_STS:
1219 return s->int_sts;
1220 case CSR_INT_EN:
1221 return s->int_en;
1222 case CSR_BYTE_TEST:
1223 return 0x87654321;
1224 case CSR_FIFO_INT:
1225 return s->fifo_int;
1226 case CSR_RX_CFG:
1227 return s->rx_cfg;
1228 case CSR_TX_CFG:
1229 return s->tx_cfg;
1230 case CSR_HW_CFG:
1248f8d4 1231 return s->hw_cfg;
2a424990
PB
1232 case CSR_RX_DP_CTRL:
1233 return 0;
1234 case CSR_RX_FIFO_INF:
1235 return (s->rx_status_fifo_used << 16) | (s->rx_fifo_used << 2);
1236 case CSR_TX_FIFO_INF:
1237 return (s->tx_status_fifo_used << 16)
1238 | (s->tx_fifo_size - s->txp->fifo_used);
1239 case CSR_PMT_CTRL:
1240 return s->pmt_ctrl;
1241 case CSR_GPIO_CFG:
1242 return s->gpio_cfg;
209bf965
PB
1243 case CSR_GPT_CFG:
1244 return s->gpt_cfg;
1245 case CSR_GPT_CNT:
1246 return ptimer_get_count(s->timer);
2a424990
PB
1247 case CSR_WORD_SWAP:
1248 return s->word_swap;
1249 case CSR_FREE_RUN:
bc72ad67 1250 return (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / 40) - s->free_timer_start;
2a424990
PB
1251 case CSR_RX_DROP:
1252 /* TODO: Implement dropped frames counter. */
1253 return 0;
1254 case CSR_MAC_CSR_CMD:
1255 return s->mac_cmd;
1256 case CSR_MAC_CSR_DATA:
1257 return s->mac_data;
1258 case CSR_AFC_CFG:
1259 return s->afc_cfg;
1260 case CSR_E2P_CMD:
1261 return s->e2p_cmd;
1262 case CSR_E2P_DATA:
1263 return s->e2p_data;
1264 }
52b4bb73 1265 qemu_log_mask(LOG_GUEST_ERROR, "lan9118_read: Bad reg 0x%x\n", (int)offset);
2a424990
PB
1266 return 0;
1267}
1268
a8170e5e 1269static uint32_t lan9118_readw(void *opaque, hwaddr offset)
1248f8d4
EV
1270{
1271 lan9118_state *s = (lan9118_state *)opaque;
1272 uint32_t val;
1273
1274 if (s->read_word_prev_offset != (offset & ~0x3)) {
1275 /* New offset, reset word counter */
1276 s->read_word_n = 0;
1277 s->read_word_prev_offset = offset & ~0x3;
1278 }
1279
1280 s->read_word_n++;
1281 if (s->read_word_n == 1) {
1282 s->read_long = lan9118_readl(s, offset & ~3, 4);
1283 } else {
1284 s->read_word_n = 0;
1285 }
1286
1287 if (offset & 2) {
1288 val = s->read_long >> 16;
1289 } else {
1290 val = s->read_long & 0xFFFF;
1291 }
1292
1293 //DPRINTF("Readw reg 0x%02x, val 0x%x\n", (int)offset, val);
1294 return val;
1295}
1296
a8170e5e 1297static uint64_t lan9118_16bit_mode_read(void *opaque, hwaddr offset,
1248f8d4
EV
1298 unsigned size)
1299{
1300 switch (size) {
1301 case 2:
1302 return lan9118_readw(opaque, offset);
1303 case 4:
1304 return lan9118_readl(opaque, offset, size);
1305 }
1306
1307 hw_error("lan9118_read: Bad size 0x%x\n", size);
1308 return 0;
1309}
1310
f0cdd7a9
PM
1311static const MemoryRegionOps lan9118_mem_ops = {
1312 .read = lan9118_readl,
1313 .write = lan9118_writel,
1314 .endianness = DEVICE_NATIVE_ENDIAN,
2a424990
PB
1315};
1316
1248f8d4
EV
1317static const MemoryRegionOps lan9118_16bit_mem_ops = {
1318 .read = lan9118_16bit_mode_read,
1319 .write = lan9118_16bit_mode_write,
1320 .endianness = DEVICE_NATIVE_ENDIAN,
1321};
1322
83b9f88c 1323static NetClientInfo net_lan9118_info = {
f394b2e2 1324 .type = NET_CLIENT_DRIVER_NIC,
83b9f88c 1325 .size = sizeof(NICState),
83b9f88c 1326 .receive = lan9118_receive,
83b9f88c
MM
1327 .link_status_changed = lan9118_set_link,
1328};
1329
f71b3367 1330static void lan9118_realize(DeviceState *dev, Error **errp)
2a424990 1331{
f71b3367 1332 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
3ff66d10 1333 lan9118_state *s = LAN9118(dev);
2a424990 1334 int i;
1248f8d4
EV
1335 const MemoryRegionOps *mem_ops =
1336 s->mode_16bit ? &lan9118_16bit_mem_ops : &lan9118_mem_ops;
2a424990 1337
eedfac6f
PB
1338 memory_region_init_io(&s->mmio, OBJECT(dev), mem_ops, s,
1339 "lan9118-mmio", 0x100);
3ff66d10
AF
1340 sysbus_init_mmio(sbd, &s->mmio);
1341 sysbus_init_irq(sbd, &s->irq);
2a424990
PB
1342 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1343
83b9f88c 1344 s->nic = qemu_new_nic(&net_lan9118_info, &s->conf,
3ff66d10 1345 object_get_typename(OBJECT(dev)), dev->id, s);
b356f76d 1346 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
2a424990
PB
1347 s->eeprom[0] = 0xa5;
1348 for (i = 0; i < 6; i++) {
1349 s->eeprom[i + 1] = s->conf.macaddr.a[i];
1350 }
1351 s->pmt_ctrl = 1;
1352 s->txp = &s->tx_packet;
1353
88e4bd67
PM
1354 s->timer = ptimer_init(lan9118_tick, s, PTIMER_POLICY_DEFAULT);
1355 ptimer_transaction_begin(s->timer);
209bf965
PB
1356 ptimer_set_freq(s->timer, 10000);
1357 ptimer_set_limit(s->timer, 0xffff, 1);
88e4bd67 1358 ptimer_transaction_commit(s->timer);
2a424990
PB
1359}
1360
999e12bb
AL
1361static Property lan9118_properties[] = {
1362 DEFINE_NIC_PROPERTIES(lan9118_state, conf),
1248f8d4 1363 DEFINE_PROP_UINT32("mode_16bit", lan9118_state, mode_16bit, 0),
999e12bb
AL
1364 DEFINE_PROP_END_OF_LIST(),
1365};
1366
1367static void lan9118_class_init(ObjectClass *klass, void *data)
1368{
39bffca2 1369 DeviceClass *dc = DEVICE_CLASS(klass);
999e12bb 1370
39bffca2 1371 dc->reset = lan9118_reset;
4f67d30b 1372 device_class_set_props(dc, lan9118_properties);
39bffca2 1373 dc->vmsd = &vmstate_lan9118;
f71b3367 1374 dc->realize = lan9118_realize;
999e12bb
AL
1375}
1376
8c43a6f0 1377static const TypeInfo lan9118_info = {
3ff66d10 1378 .name = TYPE_LAN9118,
39bffca2
AL
1379 .parent = TYPE_SYS_BUS_DEVICE,
1380 .instance_size = sizeof(lan9118_state),
1381 .class_init = lan9118_class_init,
2a424990
PB
1382};
1383
83f7d43a 1384static void lan9118_register_types(void)
2a424990 1385{
39bffca2 1386 type_register_static(&lan9118_info);
2a424990
PB
1387}
1388
1389/* Legacy helper function. Should go away when machine config files are
1390 implemented. */
1391void lan9118_init(NICInfo *nd, uint32_t base, qemu_irq irq)
1392{
1393 DeviceState *dev;
1394 SysBusDevice *s;
1395
1396 qemu_check_nic_model(nd, "lan9118");
3ff66d10 1397 dev = qdev_create(NULL, TYPE_LAN9118);
2a424990
PB
1398 qdev_set_nic_properties(dev, nd);
1399 qdev_init_nofail(dev);
1356b98d 1400 s = SYS_BUS_DEVICE(dev);
2a424990
PB
1401 sysbus_mmio_map(s, 0, base);
1402 sysbus_connect_irq(s, 0, irq);
1403}
1404
83f7d43a 1405type_init(lan9118_register_types)
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