1
2
3
4
5
6
7
8
9
10
11
12
13
14#include "qemu/osdep.h"
15#include "hw/irq.h"
16#include "hw/net/ftgmac100.h"
17#include "sysemu/dma.h"
18#include "qapi/error.h"
19#include "qemu/log.h"
20#include "qemu/module.h"
21#include "net/checksum.h"
22#include "net/eth.h"
23#include "hw/net/mii.h"
24#include "hw/qdev-properties.h"
25#include "migration/vmstate.h"
26
27
28#include <zlib.h>
29
30
31
32
33#define FTGMAC100_ISR 0x00
34#define FTGMAC100_IER 0x04
35#define FTGMAC100_MAC_MADR 0x08
36#define FTGMAC100_MAC_LADR 0x0c
37#define FTGMAC100_MATH0 0x10
38#define FTGMAC100_MATH1 0x14
39#define FTGMAC100_NPTXPD 0x18
40#define FTGMAC100_RXPD 0x1C
41#define FTGMAC100_NPTXR_BADR 0x20
42#define FTGMAC100_RXR_BADR 0x24
43#define FTGMAC100_HPTXPD 0x28
44#define FTGMAC100_HPTXR_BADR 0x2c
45#define FTGMAC100_ITC 0x30
46#define FTGMAC100_APTC 0x34
47#define FTGMAC100_DBLAC 0x38
48#define FTGMAC100_REVR 0x40
49#define FTGMAC100_FEAR1 0x44
50#define FTGMAC100_RBSR 0x4c
51#define FTGMAC100_TPAFCR 0x48
52
53#define FTGMAC100_MACCR 0x50
54#define FTGMAC100_MACSR 0x54
55#define FTGMAC100_PHYCR 0x60
56#define FTGMAC100_PHYDATA 0x64
57#define FTGMAC100_FCR 0x68
58
59
60
61
62#define FTGMAC100_INT_RPKT_BUF (1 << 0)
63#define FTGMAC100_INT_RPKT_FIFO (1 << 1)
64#define FTGMAC100_INT_NO_RXBUF (1 << 2)
65#define FTGMAC100_INT_RPKT_LOST (1 << 3)
66#define FTGMAC100_INT_XPKT_ETH (1 << 4)
67#define FTGMAC100_INT_XPKT_FIFO (1 << 5)
68#define FTGMAC100_INT_NO_NPTXBUF (1 << 6)
69#define FTGMAC100_INT_XPKT_LOST (1 << 7)
70#define FTGMAC100_INT_AHB_ERR (1 << 8)
71#define FTGMAC100_INT_PHYSTS_CHG (1 << 9)
72#define FTGMAC100_INT_NO_HPTXBUF (1 << 10)
73
74
75
76
77#define FTGMAC100_APTC_RXPOLL_CNT(x) ((x) & 0xf)
78#define FTGMAC100_APTC_RXPOLL_TIME_SEL (1 << 4)
79#define FTGMAC100_APTC_TXPOLL_CNT(x) (((x) >> 8) & 0xf)
80#define FTGMAC100_APTC_TXPOLL_TIME_SEL (1 << 12)
81
82
83
84
85#define FTGMAC100_DBLAC_RXBURST_SIZE(x) (((x) >> 8) & 0x3)
86#define FTGMAC100_DBLAC_TXBURST_SIZE(x) (((x) >> 10) & 0x3)
87#define FTGMAC100_DBLAC_RXDES_SIZE(x) ((((x) >> 12) & 0xf) * 8)
88#define FTGMAC100_DBLAC_TXDES_SIZE(x) ((((x) >> 16) & 0xf) * 8)
89#define FTGMAC100_DBLAC_IFG_CNT(x) (((x) >> 20) & 0x7)
90#define FTGMAC100_DBLAC_IFG_INC (1 << 23)
91
92
93
94
95#define FTGMAC100_PHYCR_MIIRD (1 << 26)
96#define FTGMAC100_PHYCR_MIIWR (1 << 27)
97
98#define FTGMAC100_PHYCR_DEV(x) (((x) >> 16) & 0x1f)
99#define FTGMAC100_PHYCR_REG(x) (((x) >> 21) & 0x1f)
100
101
102
103
104#define FTGMAC100_PHYDATA_MIIWDATA(x) ((x) & 0xffff)
105#define FTGMAC100_PHYDATA_MIIRDATA(x) (((x) >> 16) & 0xffff)
106
107
108
109
110#define FTGMAC100_PHYCR_NEW_DATA(x) (((x) >> 16) & 0xffff)
111#define FTGMAC100_PHYCR_NEW_FIRE (1 << 15)
112#define FTGMAC100_PHYCR_NEW_ST_22 (1 << 12)
113#define FTGMAC100_PHYCR_NEW_OP(x) (((x) >> 10) & 3)
114#define FTGMAC100_PHYCR_NEW_OP_WRITE 0x1
115#define FTGMAC100_PHYCR_NEW_OP_READ 0x2
116#define FTGMAC100_PHYCR_NEW_DEV(x) (((x) >> 5) & 0x1f)
117#define FTGMAC100_PHYCR_NEW_REG(x) ((x) & 0x1f)
118
119
120
121
122#define FTGMAC100_REVR_NEW_MDIO_INTERFACE (1 << 31)
123
124
125
126
127#define FTGMAC100_MACCR_TXDMA_EN (1 << 0)
128#define FTGMAC100_MACCR_RXDMA_EN (1 << 1)
129#define FTGMAC100_MACCR_TXMAC_EN (1 << 2)
130#define FTGMAC100_MACCR_RXMAC_EN (1 << 3)
131#define FTGMAC100_MACCR_RM_VLAN (1 << 4)
132#define FTGMAC100_MACCR_HPTXR_EN (1 << 5)
133#define FTGMAC100_MACCR_LOOP_EN (1 << 6)
134#define FTGMAC100_MACCR_ENRX_IN_HALFTX (1 << 7)
135#define FTGMAC100_MACCR_FULLDUP (1 << 8)
136#define FTGMAC100_MACCR_GIGA_MODE (1 << 9)
137#define FTGMAC100_MACCR_CRC_APD (1 << 10)
138#define FTGMAC100_MACCR_RX_RUNT (1 << 12)
139#define FTGMAC100_MACCR_JUMBO_LF (1 << 13)
140#define FTGMAC100_MACCR_RX_ALL (1 << 14)
141#define FTGMAC100_MACCR_HT_MULTI_EN (1 << 15)
142#define FTGMAC100_MACCR_RX_MULTIPKT (1 << 16)
143#define FTGMAC100_MACCR_RX_BROADPKT (1 << 17)
144#define FTGMAC100_MACCR_DISCARD_CRCERR (1 << 18)
145#define FTGMAC100_MACCR_FAST_MODE (1 << 19)
146#define FTGMAC100_MACCR_SW_RST (1 << 31)
147
148
149
150
151#define FTGMAC100_TXDES0_TXBUF_SIZE(x) ((x) & 0x3fff)
152#define FTGMAC100_TXDES0_EDOTR (1 << 15)
153#define FTGMAC100_TXDES0_CRC_ERR (1 << 19)
154#define FTGMAC100_TXDES0_LTS (1 << 28)
155#define FTGMAC100_TXDES0_FTS (1 << 29)
156#define FTGMAC100_TXDES0_EDOTR_ASPEED (1 << 30)
157#define FTGMAC100_TXDES0_TXDMA_OWN (1 << 31)
158
159#define FTGMAC100_TXDES1_VLANTAG_CI(x) ((x) & 0xffff)
160#define FTGMAC100_TXDES1_INS_VLANTAG (1 << 16)
161#define FTGMAC100_TXDES1_TCP_CHKSUM (1 << 17)
162#define FTGMAC100_TXDES1_UDP_CHKSUM (1 << 18)
163#define FTGMAC100_TXDES1_IP_CHKSUM (1 << 19)
164#define FTGMAC100_TXDES1_LLC (1 << 22)
165#define FTGMAC100_TXDES1_TX2FIC (1 << 30)
166#define FTGMAC100_TXDES1_TXIC (1 << 31)
167
168
169
170
171#define FTGMAC100_RXDES0_VDBC 0x3fff
172#define FTGMAC100_RXDES0_EDORR (1 << 15)
173#define FTGMAC100_RXDES0_MULTICAST (1 << 16)
174#define FTGMAC100_RXDES0_BROADCAST (1 << 17)
175#define FTGMAC100_RXDES0_RX_ERR (1 << 18)
176#define FTGMAC100_RXDES0_CRC_ERR (1 << 19)
177#define FTGMAC100_RXDES0_FTL (1 << 20)
178#define FTGMAC100_RXDES0_RUNT (1 << 21)
179#define FTGMAC100_RXDES0_RX_ODD_NB (1 << 22)
180#define FTGMAC100_RXDES0_FIFO_FULL (1 << 23)
181#define FTGMAC100_RXDES0_PAUSE_OPCODE (1 << 24)
182#define FTGMAC100_RXDES0_PAUSE_FRAME (1 << 25)
183#define FTGMAC100_RXDES0_LRS (1 << 28)
184#define FTGMAC100_RXDES0_FRS (1 << 29)
185#define FTGMAC100_RXDES0_EDORR_ASPEED (1 << 30)
186#define FTGMAC100_RXDES0_RXPKT_RDY (1 << 31)
187
188#define FTGMAC100_RXDES1_VLANTAG_CI 0xffff
189#define FTGMAC100_RXDES1_PROT_MASK (0x3 << 20)
190#define FTGMAC100_RXDES1_PROT_NONIP (0x0 << 20)
191#define FTGMAC100_RXDES1_PROT_IP (0x1 << 20)
192#define FTGMAC100_RXDES1_PROT_TCPIP (0x2 << 20)
193#define FTGMAC100_RXDES1_PROT_UDPIP (0x3 << 20)
194#define FTGMAC100_RXDES1_LLC (1 << 22)
195#define FTGMAC100_RXDES1_DF (1 << 23)
196#define FTGMAC100_RXDES1_VLANTAG_AVAIL (1 << 24)
197#define FTGMAC100_RXDES1_TCP_CHKSUM_ERR (1 << 25)
198#define FTGMAC100_RXDES1_UDP_CHKSUM_ERR (1 << 26)
199#define FTGMAC100_RXDES1_IP_CHKSUM_ERR (1 << 27)
200
201
202
203
204typedef struct {
205 uint32_t des0;
206 uint32_t des1;
207 uint32_t des2;
208 uint32_t des3;
209} FTGMAC100Desc;
210
211#define FTGMAC100_DESC_ALIGNMENT 16
212
213
214
215
216#define RTL8211E_MII_PHYCR 16
217#define RTL8211E_MII_PHYSR 17
218#define RTL8211E_MII_INER 18
219#define RTL8211E_MII_INSR 19
220#define RTL8211E_MII_RXERC 24
221#define RTL8211E_MII_LDPSR 27
222#define RTL8211E_MII_EPAGSR 30
223#define RTL8211E_MII_PAGSEL 31
224
225
226
227
228#define PHY_INT_AUTONEG_ERROR (1 << 15)
229#define PHY_INT_PAGE_RECV (1 << 12)
230#define PHY_INT_AUTONEG_COMPLETE (1 << 11)
231#define PHY_INT_LINK_STATUS (1 << 10)
232#define PHY_INT_ERROR (1 << 9)
233#define PHY_INT_DOWN (1 << 8)
234#define PHY_INT_JABBER (1 << 0)
235
236
237
238
239#define FTGMAC100_MAX_FRAME_SIZE 9220
240
241
242
243
244
245
246static int ftgmac100_max_frame_size(FTGMAC100State *s, uint16_t proto)
247{
248 int max = (s->maccr & FTGMAC100_MACCR_JUMBO_LF ? 9216 : 1518);
249
250 return max + (proto == ETH_P_VLAN ? 4 : 0);
251}
252
253static void ftgmac100_update_irq(FTGMAC100State *s)
254{
255 qemu_set_irq(s->irq, s->isr & s->ier);
256}
257
258
259
260
261
262
263
264static void phy_update_irq(FTGMAC100State *s)
265{
266 ftgmac100_update_irq(s);
267}
268
269static void phy_update_link(FTGMAC100State *s)
270{
271
272 if (qemu_get_queue(s->nic)->link_down) {
273 s->phy_status &= ~(MII_BMSR_LINK_ST | MII_BMSR_AN_COMP);
274 s->phy_int |= PHY_INT_DOWN;
275 } else {
276 s->phy_status |= (MII_BMSR_LINK_ST | MII_BMSR_AN_COMP);
277 s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
278 }
279 phy_update_irq(s);
280}
281
282static void ftgmac100_set_link(NetClientState *nc)
283{
284 phy_update_link(FTGMAC100(qemu_get_nic_opaque(nc)));
285}
286
287static void phy_reset(FTGMAC100State *s)
288{
289 s->phy_status = (MII_BMSR_100TX_FD | MII_BMSR_100TX_HD | MII_BMSR_10T_FD |
290 MII_BMSR_10T_HD | MII_BMSR_EXTSTAT | MII_BMSR_MFPS |
291 MII_BMSR_AN_COMP | MII_BMSR_AUTONEG | MII_BMSR_LINK_ST |
292 MII_BMSR_EXTCAP);
293 s->phy_control = (MII_BMCR_AUTOEN | MII_BMCR_FD | MII_BMCR_SPEED1000);
294 s->phy_advertise = (MII_ANAR_PAUSE_ASYM | MII_ANAR_PAUSE | MII_ANAR_TXFD |
295 MII_ANAR_TX | MII_ANAR_10FD | MII_ANAR_10 |
296 MII_ANAR_CSMACD);
297 s->phy_int_mask = 0;
298 s->phy_int = 0;
299}
300
301static uint16_t do_phy_read(FTGMAC100State *s, uint8_t reg)
302{
303 uint16_t val;
304
305 switch (reg) {
306 case MII_BMCR:
307 val = s->phy_control;
308 break;
309 case MII_BMSR:
310 val = s->phy_status;
311 break;
312 case MII_PHYID1:
313 val = RTL8211E_PHYID1;
314 break;
315 case MII_PHYID2:
316 val = RTL8211E_PHYID2;
317 break;
318 case MII_ANAR:
319 val = s->phy_advertise;
320 break;
321 case MII_ANLPAR:
322 val = (MII_ANLPAR_ACK | MII_ANLPAR_PAUSE | MII_ANLPAR_TXFD |
323 MII_ANLPAR_TX | MII_ANLPAR_10FD | MII_ANLPAR_10 |
324 MII_ANLPAR_CSMACD);
325 break;
326 case MII_ANER:
327 val = MII_ANER_NWAY;
328 break;
329 case MII_CTRL1000:
330 val = (MII_CTRL1000_HALF | MII_CTRL1000_FULL);
331 break;
332 case MII_STAT1000:
333 val = MII_STAT1000_FULL;
334 break;
335 case RTL8211E_MII_INSR:
336 val = s->phy_int;
337 s->phy_int = 0;
338 phy_update_irq(s);
339 break;
340 case RTL8211E_MII_INER:
341 val = s->phy_int_mask;
342 break;
343 case RTL8211E_MII_PHYCR:
344 case RTL8211E_MII_PHYSR:
345 case RTL8211E_MII_RXERC:
346 case RTL8211E_MII_LDPSR:
347 case RTL8211E_MII_EPAGSR:
348 case RTL8211E_MII_PAGSEL:
349 qemu_log_mask(LOG_UNIMP, "%s: reg %d not implemented\n",
350 __func__, reg);
351 val = 0;
352 break;
353 default:
354 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset %d\n",
355 __func__, reg);
356 val = 0;
357 break;
358 }
359
360 return val;
361}
362
363#define MII_BMCR_MASK (MII_BMCR_LOOPBACK | MII_BMCR_SPEED100 | \
364 MII_BMCR_SPEED | MII_BMCR_AUTOEN | MII_BMCR_PDOWN | \
365 MII_BMCR_FD | MII_BMCR_CTST)
366#define MII_ANAR_MASK 0x2d7f
367
368static void do_phy_write(FTGMAC100State *s, uint8_t reg, uint16_t val)
369{
370 switch (reg) {
371 case MII_BMCR:
372 if (val & MII_BMCR_RESET) {
373 phy_reset(s);
374 } else {
375 s->phy_control = val & MII_BMCR_MASK;
376
377 if (val & MII_BMCR_AUTOEN) {
378 s->phy_status |= MII_BMSR_AN_COMP;
379 }
380 }
381 break;
382 case MII_ANAR:
383 s->phy_advertise = (val & MII_ANAR_MASK) | MII_ANAR_TX;
384 break;
385 case RTL8211E_MII_INER:
386 s->phy_int_mask = val & 0xff;
387 phy_update_irq(s);
388 break;
389 case RTL8211E_MII_PHYCR:
390 case RTL8211E_MII_PHYSR:
391 case RTL8211E_MII_RXERC:
392 case RTL8211E_MII_LDPSR:
393 case RTL8211E_MII_EPAGSR:
394 case RTL8211E_MII_PAGSEL:
395 qemu_log_mask(LOG_UNIMP, "%s: reg %d not implemented\n",
396 __func__, reg);
397 break;
398 default:
399 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset %d\n",
400 __func__, reg);
401 break;
402 }
403}
404
405static void do_phy_new_ctl(FTGMAC100State *s)
406{
407 uint8_t reg;
408 uint16_t data;
409
410 if (!(s->phycr & FTGMAC100_PHYCR_NEW_ST_22)) {
411 qemu_log_mask(LOG_UNIMP, "%s: unsupported ST code\n", __func__);
412 return;
413 }
414
415
416 if (!(s->phycr & FTGMAC100_PHYCR_NEW_FIRE)) {
417 return;
418 }
419
420 reg = FTGMAC100_PHYCR_NEW_REG(s->phycr);
421 data = FTGMAC100_PHYCR_NEW_DATA(s->phycr);
422
423 switch (FTGMAC100_PHYCR_NEW_OP(s->phycr)) {
424 case FTGMAC100_PHYCR_NEW_OP_WRITE:
425 do_phy_write(s, reg, data);
426 break;
427 case FTGMAC100_PHYCR_NEW_OP_READ:
428 s->phydata = do_phy_read(s, reg) & 0xffff;
429 break;
430 default:
431 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid OP code %08x\n",
432 __func__, s->phycr);
433 }
434
435 s->phycr &= ~FTGMAC100_PHYCR_NEW_FIRE;
436}
437
438static void do_phy_ctl(FTGMAC100State *s)
439{
440 uint8_t reg = FTGMAC100_PHYCR_REG(s->phycr);
441
442 if (s->phycr & FTGMAC100_PHYCR_MIIWR) {
443 do_phy_write(s, reg, s->phydata & 0xffff);
444 s->phycr &= ~FTGMAC100_PHYCR_MIIWR;
445 } else if (s->phycr & FTGMAC100_PHYCR_MIIRD) {
446 s->phydata = do_phy_read(s, reg) << 16;
447 s->phycr &= ~FTGMAC100_PHYCR_MIIRD;
448 } else {
449 qemu_log_mask(LOG_GUEST_ERROR, "%s: no OP code %08x\n",
450 __func__, s->phycr);
451 }
452}
453
454static int ftgmac100_read_bd(FTGMAC100Desc *bd, dma_addr_t addr)
455{
456 if (dma_memory_read(&address_space_memory, addr, bd, sizeof(*bd))) {
457 qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to read descriptor @ 0x%"
458 HWADDR_PRIx "\n", __func__, addr);
459 return -1;
460 }
461 bd->des0 = le32_to_cpu(bd->des0);
462 bd->des1 = le32_to_cpu(bd->des1);
463 bd->des2 = le32_to_cpu(bd->des2);
464 bd->des3 = le32_to_cpu(bd->des3);
465 return 0;
466}
467
468static int ftgmac100_write_bd(FTGMAC100Desc *bd, dma_addr_t addr)
469{
470 FTGMAC100Desc lebd;
471
472 lebd.des0 = cpu_to_le32(bd->des0);
473 lebd.des1 = cpu_to_le32(bd->des1);
474 lebd.des2 = cpu_to_le32(bd->des2);
475 lebd.des3 = cpu_to_le32(bd->des3);
476 if (dma_memory_write(&address_space_memory, addr, &lebd, sizeof(lebd))) {
477 qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to write descriptor @ 0x%"
478 HWADDR_PRIx "\n", __func__, addr);
479 return -1;
480 }
481 return 0;
482}
483
484static int ftgmac100_insert_vlan(FTGMAC100State *s, int frame_size,
485 uint8_t vlan_tci)
486{
487 uint8_t *vlan_hdr = s->frame + (ETH_ALEN * 2);
488 uint8_t *payload = vlan_hdr + sizeof(struct vlan_header);
489
490 if (frame_size < sizeof(struct eth_header)) {
491 qemu_log_mask(LOG_GUEST_ERROR,
492 "%s: frame too small for VLAN insertion : %d bytes\n",
493 __func__, frame_size);
494 s->isr |= FTGMAC100_INT_XPKT_LOST;
495 goto out;
496 }
497
498 if (frame_size + sizeof(struct vlan_header) > sizeof(s->frame)) {
499 qemu_log_mask(LOG_GUEST_ERROR,
500 "%s: frame too big : %d bytes\n",
501 __func__, frame_size);
502 s->isr |= FTGMAC100_INT_XPKT_LOST;
503 frame_size -= sizeof(struct vlan_header);
504 }
505
506 memmove(payload, vlan_hdr, frame_size - (ETH_ALEN * 2));
507 stw_be_p(vlan_hdr, ETH_P_VLAN);
508 stw_be_p(vlan_hdr + 2, vlan_tci);
509 frame_size += sizeof(struct vlan_header);
510
511out:
512 return frame_size;
513}
514
515static void ftgmac100_do_tx(FTGMAC100State *s, uint32_t tx_ring,
516 uint32_t tx_descriptor)
517{
518 int frame_size = 0;
519 uint8_t *ptr = s->frame;
520 uint32_t addr = tx_descriptor;
521 uint32_t flags = 0;
522
523 while (1) {
524 FTGMAC100Desc bd;
525 int len;
526
527 if (ftgmac100_read_bd(&bd, addr) ||
528 ((bd.des0 & FTGMAC100_TXDES0_TXDMA_OWN) == 0)) {
529
530 s->isr |= FTGMAC100_INT_NO_NPTXBUF;
531 break;
532 }
533
534
535
536 if (bd.des0 & FTGMAC100_TXDES0_FTS) {
537 flags = bd.des1;
538 }
539
540 len = FTGMAC100_TXDES0_TXBUF_SIZE(bd.des0);
541 if (!len) {
542
543
544
545
546 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid segment size\n",
547 __func__);
548 }
549
550 if (frame_size + len > sizeof(s->frame)) {
551 qemu_log_mask(LOG_GUEST_ERROR, "%s: frame too big : %d bytes\n",
552 __func__, len);
553 s->isr |= FTGMAC100_INT_XPKT_LOST;
554 len = sizeof(s->frame) - frame_size;
555 }
556
557 if (dma_memory_read(&address_space_memory, bd.des3, ptr, len)) {
558 qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to read packet @ 0x%x\n",
559 __func__, bd.des3);
560 s->isr |= FTGMAC100_INT_AHB_ERR;
561 break;
562 }
563
564 ptr += len;
565 frame_size += len;
566 if (bd.des0 & FTGMAC100_TXDES0_LTS) {
567 int csum = 0;
568
569
570 if (flags & FTGMAC100_TXDES1_INS_VLANTAG &&
571 be16_to_cpu(PKT_GET_ETH_HDR(s->frame)->h_proto) != ETH_P_VLAN) {
572 frame_size = ftgmac100_insert_vlan(s, frame_size,
573 FTGMAC100_TXDES1_VLANTAG_CI(flags));
574 }
575
576 if (flags & FTGMAC100_TXDES1_IP_CHKSUM) {
577 csum |= CSUM_IP;
578 }
579 if (flags & FTGMAC100_TXDES1_TCP_CHKSUM) {
580 csum |= CSUM_TCP;
581 }
582 if (flags & FTGMAC100_TXDES1_UDP_CHKSUM) {
583 csum |= CSUM_UDP;
584 }
585 if (csum) {
586 net_checksum_calculate(s->frame, frame_size, csum);
587 }
588
589
590 qemu_send_packet(qemu_get_queue(s->nic), s->frame, frame_size);
591 ptr = s->frame;
592 frame_size = 0;
593 s->isr |= FTGMAC100_INT_XPKT_ETH;
594 }
595
596 if (flags & FTGMAC100_TXDES1_TX2FIC) {
597 s->isr |= FTGMAC100_INT_XPKT_FIFO;
598 }
599 bd.des0 &= ~FTGMAC100_TXDES0_TXDMA_OWN;
600
601
602 ftgmac100_write_bd(&bd, addr);
603
604 if (bd.des0 & s->txdes0_edotr) {
605 addr = tx_ring;
606 } else {
607 addr += FTGMAC100_DBLAC_TXDES_SIZE(s->dblac);
608 }
609 }
610
611 s->tx_descriptor = addr;
612
613 ftgmac100_update_irq(s);
614}
615
616static bool ftgmac100_can_receive(NetClientState *nc)
617{
618 FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc));
619 FTGMAC100Desc bd;
620
621 if ((s->maccr & (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN))
622 != (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) {
623 return false;
624 }
625
626 if (ftgmac100_read_bd(&bd, s->rx_descriptor)) {
627 return false;
628 }
629 return !(bd.des0 & FTGMAC100_RXDES0_RXPKT_RDY);
630}
631
632
633
634
635
636
637static uint32_t ftgmac100_rxpoll(FTGMAC100State *s)
638{
639
640
641
642
643
644
645
646
647 static const int div[] = { 20, 200, 1000 };
648
649 uint32_t cnt = 1024 * FTGMAC100_APTC_RXPOLL_CNT(s->aptcr);
650 uint32_t speed = (s->maccr & FTGMAC100_MACCR_FAST_MODE) ? 1 : 0;
651
652 if (s->aptcr & FTGMAC100_APTC_RXPOLL_TIME_SEL) {
653 cnt <<= 4;
654 }
655
656 if (s->maccr & FTGMAC100_MACCR_GIGA_MODE) {
657 speed = 2;
658 }
659
660 return cnt / div[speed];
661}
662
663static void ftgmac100_do_reset(FTGMAC100State *s, bool sw_reset)
664{
665
666 s->isr = 0;
667 s->ier = 0;
668 s->rx_enabled = 0;
669 s->rx_ring = 0;
670 s->rbsr = 0x640;
671 s->rx_descriptor = 0;
672 s->tx_ring = 0;
673 s->tx_descriptor = 0;
674 s->math[0] = 0;
675 s->math[1] = 0;
676 s->itc = 0;
677 s->aptcr = 1;
678 s->dblac = 0x00022f00;
679 s->revr = 0;
680 s->fear1 = 0;
681 s->tpafcr = 0xf1;
682
683 if (sw_reset) {
684 s->maccr &= FTGMAC100_MACCR_GIGA_MODE | FTGMAC100_MACCR_FAST_MODE;
685 } else {
686 s->maccr = 0;
687 }
688
689 s->phycr = 0;
690 s->phydata = 0;
691 s->fcr = 0x400;
692
693
694 phy_reset(s);
695}
696
697static void ftgmac100_reset(DeviceState *d)
698{
699 ftgmac100_do_reset(FTGMAC100(d), false);
700}
701
702static uint64_t ftgmac100_read(void *opaque, hwaddr addr, unsigned size)
703{
704 FTGMAC100State *s = FTGMAC100(opaque);
705
706 switch (addr & 0xff) {
707 case FTGMAC100_ISR:
708 return s->isr;
709 case FTGMAC100_IER:
710 return s->ier;
711 case FTGMAC100_MAC_MADR:
712 return (s->conf.macaddr.a[0] << 8) | s->conf.macaddr.a[1];
713 case FTGMAC100_MAC_LADR:
714 return ((uint32_t) s->conf.macaddr.a[2] << 24) |
715 (s->conf.macaddr.a[3] << 16) | (s->conf.macaddr.a[4] << 8) |
716 s->conf.macaddr.a[5];
717 case FTGMAC100_MATH0:
718 return s->math[0];
719 case FTGMAC100_MATH1:
720 return s->math[1];
721 case FTGMAC100_RXR_BADR:
722 return s->rx_ring;
723 case FTGMAC100_NPTXR_BADR:
724 return s->tx_ring;
725 case FTGMAC100_ITC:
726 return s->itc;
727 case FTGMAC100_DBLAC:
728 return s->dblac;
729 case FTGMAC100_REVR:
730 return s->revr;
731 case FTGMAC100_FEAR1:
732 return s->fear1;
733 case FTGMAC100_TPAFCR:
734 return s->tpafcr;
735 case FTGMAC100_FCR:
736 return s->fcr;
737 case FTGMAC100_MACCR:
738 return s->maccr;
739 case FTGMAC100_PHYCR:
740 return s->phycr;
741 case FTGMAC100_PHYDATA:
742 return s->phydata;
743
744
745 case FTGMAC100_HPTXPD:
746 case FTGMAC100_HPTXR_BADR:
747 case FTGMAC100_MACSR:
748 qemu_log_mask(LOG_UNIMP, "%s: read to unimplemented register 0x%"
749 HWADDR_PRIx "\n", __func__, addr);
750 return 0;
751 default:
752 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset 0x%"
753 HWADDR_PRIx "\n", __func__, addr);
754 return 0;
755 }
756}
757
758static void ftgmac100_write(void *opaque, hwaddr addr,
759 uint64_t value, unsigned size)
760{
761 FTGMAC100State *s = FTGMAC100(opaque);
762
763 switch (addr & 0xff) {
764 case FTGMAC100_ISR:
765 s->isr &= ~value;
766 break;
767 case FTGMAC100_IER:
768 s->ier = value;
769 break;
770 case FTGMAC100_MAC_MADR:
771 s->conf.macaddr.a[0] = value >> 8;
772 s->conf.macaddr.a[1] = value;
773 break;
774 case FTGMAC100_MAC_LADR:
775 s->conf.macaddr.a[2] = value >> 24;
776 s->conf.macaddr.a[3] = value >> 16;
777 s->conf.macaddr.a[4] = value >> 8;
778 s->conf.macaddr.a[5] = value;
779 break;
780 case FTGMAC100_MATH0:
781 s->math[0] = value;
782 break;
783 case FTGMAC100_MATH1:
784 s->math[1] = value;
785 break;
786 case FTGMAC100_ITC:
787 s->itc = value;
788 break;
789 case FTGMAC100_RXR_BADR:
790 if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) {
791 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad RX buffer alignment 0x%"
792 HWADDR_PRIx "\n", __func__, value);
793 return;
794 }
795
796 s->rx_ring = value;
797 s->rx_descriptor = s->rx_ring;
798 break;
799
800 case FTGMAC100_RBSR:
801 s->rbsr = value;
802 break;
803
804 case FTGMAC100_NPTXR_BADR:
805 if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) {
806 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad TX buffer alignment 0x%"
807 HWADDR_PRIx "\n", __func__, value);
808 return;
809 }
810 s->tx_ring = value;
811 s->tx_descriptor = s->tx_ring;
812 break;
813
814 case FTGMAC100_NPTXPD:
815 if ((s->maccr & (FTGMAC100_MACCR_TXDMA_EN | FTGMAC100_MACCR_TXMAC_EN))
816 == (FTGMAC100_MACCR_TXDMA_EN | FTGMAC100_MACCR_TXMAC_EN)) {
817
818 ftgmac100_do_tx(s, s->tx_ring, s->tx_descriptor);
819 }
820 if (ftgmac100_can_receive(qemu_get_queue(s->nic))) {
821 qemu_flush_queued_packets(qemu_get_queue(s->nic));
822 }
823 break;
824
825 case FTGMAC100_RXPD:
826 if (ftgmac100_can_receive(qemu_get_queue(s->nic))) {
827 qemu_flush_queued_packets(qemu_get_queue(s->nic));
828 }
829 break;
830
831 case FTGMAC100_APTC:
832 s->aptcr = value;
833
834 if (FTGMAC100_APTC_RXPOLL_CNT(s->aptcr)) {
835 ftgmac100_rxpoll(s);
836 }
837
838 if (FTGMAC100_APTC_TXPOLL_CNT(s->aptcr)) {
839 qemu_log_mask(LOG_UNIMP, "%s: no transmit polling\n", __func__);
840 }
841 break;
842
843 case FTGMAC100_MACCR:
844 s->maccr = value;
845 if (value & FTGMAC100_MACCR_SW_RST) {
846 ftgmac100_do_reset(s, true);
847 }
848
849 if (ftgmac100_can_receive(qemu_get_queue(s->nic))) {
850 qemu_flush_queued_packets(qemu_get_queue(s->nic));
851 }
852 break;
853
854 case FTGMAC100_PHYCR:
855 s->phycr = value;
856 if (s->revr & FTGMAC100_REVR_NEW_MDIO_INTERFACE) {
857 do_phy_new_ctl(s);
858 } else {
859 do_phy_ctl(s);
860 }
861 break;
862 case FTGMAC100_PHYDATA:
863 s->phydata = value & 0xffff;
864 break;
865 case FTGMAC100_DBLAC:
866 if (FTGMAC100_DBLAC_TXDES_SIZE(value) < sizeof(FTGMAC100Desc)) {
867 qemu_log_mask(LOG_GUEST_ERROR,
868 "%s: transmit descriptor too small: %" PRIx64
869 " bytes\n", __func__,
870 FTGMAC100_DBLAC_TXDES_SIZE(value));
871 break;
872 }
873 if (FTGMAC100_DBLAC_RXDES_SIZE(value) < sizeof(FTGMAC100Desc)) {
874 qemu_log_mask(LOG_GUEST_ERROR,
875 "%s: receive descriptor too small : %" PRIx64
876 " bytes\n", __func__,
877 FTGMAC100_DBLAC_RXDES_SIZE(value));
878 break;
879 }
880 s->dblac = value;
881 break;
882 case FTGMAC100_REVR:
883 s->revr = value;
884 break;
885 case FTGMAC100_FEAR1:
886 s->fear1 = value;
887 break;
888 case FTGMAC100_TPAFCR:
889 s->tpafcr = value;
890 break;
891 case FTGMAC100_FCR:
892 s->fcr = value;
893 break;
894
895 case FTGMAC100_HPTXPD:
896 case FTGMAC100_HPTXR_BADR:
897 case FTGMAC100_MACSR:
898 qemu_log_mask(LOG_UNIMP, "%s: write to unimplemented register 0x%"
899 HWADDR_PRIx "\n", __func__, addr);
900 break;
901 default:
902 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad address at offset 0x%"
903 HWADDR_PRIx "\n", __func__, addr);
904 break;
905 }
906
907 ftgmac100_update_irq(s);
908}
909
910static int ftgmac100_filter(FTGMAC100State *s, const uint8_t *buf, size_t len)
911{
912 unsigned mcast_idx;
913
914 if (s->maccr & FTGMAC100_MACCR_RX_ALL) {
915 return 1;
916 }
917
918 switch (get_eth_packet_type(PKT_GET_ETH_HDR(buf))) {
919 case ETH_PKT_BCAST:
920 if (!(s->maccr & FTGMAC100_MACCR_RX_BROADPKT)) {
921 return 0;
922 }
923 break;
924 case ETH_PKT_MCAST:
925 if (!(s->maccr & FTGMAC100_MACCR_RX_MULTIPKT)) {
926 if (!(s->maccr & FTGMAC100_MACCR_HT_MULTI_EN)) {
927 return 0;
928 }
929
930 mcast_idx = net_crc32_le(buf, ETH_ALEN);
931 mcast_idx = (~(mcast_idx >> 2)) & 0x3f;
932 if (!(s->math[mcast_idx / 32] & (1 << (mcast_idx % 32)))) {
933 return 0;
934 }
935 }
936 break;
937 case ETH_PKT_UCAST:
938 if (memcmp(s->conf.macaddr.a, buf, 6)) {
939 return 0;
940 }
941 break;
942 }
943
944 return 1;
945}
946
947static ssize_t ftgmac100_receive(NetClientState *nc, const uint8_t *buf,
948 size_t len)
949{
950 FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc));
951 FTGMAC100Desc bd;
952 uint32_t flags = 0;
953 uint32_t addr;
954 uint32_t crc;
955 uint32_t buf_addr;
956 uint8_t *crc_ptr;
957 uint32_t buf_len;
958 size_t size = len;
959 uint32_t first = FTGMAC100_RXDES0_FRS;
960 uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(buf)->h_proto);
961 int max_frame_size = ftgmac100_max_frame_size(s, proto);
962
963 if ((s->maccr & (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN))
964 != (FTGMAC100_MACCR_RXDMA_EN | FTGMAC100_MACCR_RXMAC_EN)) {
965 return -1;
966 }
967
968
969
970 if (size < 10) {
971 qemu_log_mask(LOG_GUEST_ERROR, "%s: dropped frame of %zd bytes\n",
972 __func__, size);
973 return size;
974 }
975
976 if (!ftgmac100_filter(s, buf, size)) {
977 return size;
978 }
979
980
981 size += 4;
982 crc = cpu_to_be32(crc32(~0, buf, size));
983 crc_ptr = (uint8_t *) &crc;
984
985
986 if (size > max_frame_size) {
987 qemu_log_mask(LOG_GUEST_ERROR, "%s: frame too big : %zd bytes\n",
988 __func__, size);
989 size = max_frame_size;
990 flags |= FTGMAC100_RXDES0_FTL;
991 }
992
993 switch (get_eth_packet_type(PKT_GET_ETH_HDR(buf))) {
994 case ETH_PKT_BCAST:
995 flags |= FTGMAC100_RXDES0_BROADCAST;
996 break;
997 case ETH_PKT_MCAST:
998 flags |= FTGMAC100_RXDES0_MULTICAST;
999 break;
1000 case ETH_PKT_UCAST:
1001 break;
1002 }
1003
1004 s->isr |= FTGMAC100_INT_RPKT_FIFO;
1005 addr = s->rx_descriptor;
1006 while (size > 0) {
1007 if (!ftgmac100_can_receive(nc)) {
1008 qemu_log_mask(LOG_GUEST_ERROR, "%s: Unexpected packet\n", __func__);
1009 return -1;
1010 }
1011
1012 if (ftgmac100_read_bd(&bd, addr) ||
1013 (bd.des0 & FTGMAC100_RXDES0_RXPKT_RDY)) {
1014
1015 qemu_log_mask(LOG_GUEST_ERROR, "%s: Lost end of frame\n",
1016 __func__);
1017 s->isr |= FTGMAC100_INT_NO_RXBUF;
1018 break;
1019 }
1020 buf_len = (size <= s->rbsr) ? size : s->rbsr;
1021 bd.des0 |= buf_len & 0x3fff;
1022 size -= buf_len;
1023
1024
1025 if (size < 4) {
1026 buf_len += size - 4;
1027 }
1028 buf_addr = bd.des3;
1029 if (first && proto == ETH_P_VLAN && buf_len >= 18) {
1030 bd.des1 = lduw_be_p(buf + 14) | FTGMAC100_RXDES1_VLANTAG_AVAIL;
1031
1032 if (s->maccr & FTGMAC100_MACCR_RM_VLAN) {
1033 dma_memory_write(&address_space_memory, buf_addr, buf, 12);
1034 dma_memory_write(&address_space_memory, buf_addr + 12, buf + 16,
1035 buf_len - 16);
1036 } else {
1037 dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
1038 }
1039 } else {
1040 bd.des1 = 0;
1041 dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
1042 }
1043 buf += buf_len;
1044 if (size < 4) {
1045 dma_memory_write(&address_space_memory, buf_addr + buf_len,
1046 crc_ptr, 4 - size);
1047 crc_ptr += 4 - size;
1048 }
1049
1050 bd.des0 |= first | FTGMAC100_RXDES0_RXPKT_RDY;
1051 first = 0;
1052 if (size == 0) {
1053
1054 bd.des0 |= flags | FTGMAC100_RXDES0_LRS;
1055 s->isr |= FTGMAC100_INT_RPKT_BUF;
1056 }
1057 ftgmac100_write_bd(&bd, addr);
1058 if (bd.des0 & s->rxdes0_edorr) {
1059 addr = s->rx_ring;
1060 } else {
1061 addr += FTGMAC100_DBLAC_RXDES_SIZE(s->dblac);
1062 }
1063 }
1064 s->rx_descriptor = addr;
1065
1066 ftgmac100_update_irq(s);
1067 return len;
1068}
1069
1070static const MemoryRegionOps ftgmac100_ops = {
1071 .read = ftgmac100_read,
1072 .write = ftgmac100_write,
1073 .valid.min_access_size = 4,
1074 .valid.max_access_size = 4,
1075 .endianness = DEVICE_LITTLE_ENDIAN,
1076};
1077
1078static void ftgmac100_cleanup(NetClientState *nc)
1079{
1080 FTGMAC100State *s = FTGMAC100(qemu_get_nic_opaque(nc));
1081
1082 s->nic = NULL;
1083}
1084
1085static NetClientInfo net_ftgmac100_info = {
1086 .type = NET_CLIENT_DRIVER_NIC,
1087 .size = sizeof(NICState),
1088 .can_receive = ftgmac100_can_receive,
1089 .receive = ftgmac100_receive,
1090 .cleanup = ftgmac100_cleanup,
1091 .link_status_changed = ftgmac100_set_link,
1092};
1093
1094static void ftgmac100_realize(DeviceState *dev, Error **errp)
1095{
1096 FTGMAC100State *s = FTGMAC100(dev);
1097 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
1098
1099 if (s->aspeed) {
1100 s->txdes0_edotr = FTGMAC100_TXDES0_EDOTR_ASPEED;
1101 s->rxdes0_edorr = FTGMAC100_RXDES0_EDORR_ASPEED;
1102 } else {
1103 s->txdes0_edotr = FTGMAC100_TXDES0_EDOTR;
1104 s->rxdes0_edorr = FTGMAC100_RXDES0_EDORR;
1105 }
1106
1107 memory_region_init_io(&s->iomem, OBJECT(dev), &ftgmac100_ops, s,
1108 TYPE_FTGMAC100, 0x2000);
1109 sysbus_init_mmio(sbd, &s->iomem);
1110 sysbus_init_irq(sbd, &s->irq);
1111 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1112
1113 s->nic = qemu_new_nic(&net_ftgmac100_info, &s->conf,
1114 object_get_typename(OBJECT(dev)), dev->id, s);
1115 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
1116}
1117
1118static const VMStateDescription vmstate_ftgmac100 = {
1119 .name = TYPE_FTGMAC100,
1120 .version_id = 1,
1121 .minimum_version_id = 1,
1122 .fields = (VMStateField[]) {
1123 VMSTATE_UINT32(irq_state, FTGMAC100State),
1124 VMSTATE_UINT32(isr, FTGMAC100State),
1125 VMSTATE_UINT32(ier, FTGMAC100State),
1126 VMSTATE_UINT32(rx_enabled, FTGMAC100State),
1127 VMSTATE_UINT32(rx_ring, FTGMAC100State),
1128 VMSTATE_UINT32(rbsr, FTGMAC100State),
1129 VMSTATE_UINT32(tx_ring, FTGMAC100State),
1130 VMSTATE_UINT32(rx_descriptor, FTGMAC100State),
1131 VMSTATE_UINT32(tx_descriptor, FTGMAC100State),
1132 VMSTATE_UINT32_ARRAY(math, FTGMAC100State, 2),
1133 VMSTATE_UINT32(itc, FTGMAC100State),
1134 VMSTATE_UINT32(aptcr, FTGMAC100State),
1135 VMSTATE_UINT32(dblac, FTGMAC100State),
1136 VMSTATE_UINT32(revr, FTGMAC100State),
1137 VMSTATE_UINT32(fear1, FTGMAC100State),
1138 VMSTATE_UINT32(tpafcr, FTGMAC100State),
1139 VMSTATE_UINT32(maccr, FTGMAC100State),
1140 VMSTATE_UINT32(phycr, FTGMAC100State),
1141 VMSTATE_UINT32(phydata, FTGMAC100State),
1142 VMSTATE_UINT32(fcr, FTGMAC100State),
1143 VMSTATE_UINT32(phy_status, FTGMAC100State),
1144 VMSTATE_UINT32(phy_control, FTGMAC100State),
1145 VMSTATE_UINT32(phy_advertise, FTGMAC100State),
1146 VMSTATE_UINT32(phy_int, FTGMAC100State),
1147 VMSTATE_UINT32(phy_int_mask, FTGMAC100State),
1148 VMSTATE_UINT32(txdes0_edotr, FTGMAC100State),
1149 VMSTATE_UINT32(rxdes0_edorr, FTGMAC100State),
1150 VMSTATE_END_OF_LIST()
1151 }
1152};
1153
1154static Property ftgmac100_properties[] = {
1155 DEFINE_PROP_BOOL("aspeed", FTGMAC100State, aspeed, false),
1156 DEFINE_NIC_PROPERTIES(FTGMAC100State, conf),
1157 DEFINE_PROP_END_OF_LIST(),
1158};
1159
1160static void ftgmac100_class_init(ObjectClass *klass, void *data)
1161{
1162 DeviceClass *dc = DEVICE_CLASS(klass);
1163
1164 dc->vmsd = &vmstate_ftgmac100;
1165 dc->reset = ftgmac100_reset;
1166 device_class_set_props(dc, ftgmac100_properties);
1167 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
1168 dc->realize = ftgmac100_realize;
1169 dc->desc = "Faraday FTGMAC100 Gigabit Ethernet emulation";
1170}
1171
1172static const TypeInfo ftgmac100_info = {
1173 .name = TYPE_FTGMAC100,
1174 .parent = TYPE_SYS_BUS_DEVICE,
1175 .instance_size = sizeof(FTGMAC100State),
1176 .class_init = ftgmac100_class_init,
1177};
1178
1179
1180
1181
1182#define ASPEED_MII_PHYCR_FIRE BIT(31)
1183#define ASPEED_MII_PHYCR_ST_22 BIT(28)
1184#define ASPEED_MII_PHYCR_OP(x) ((x) & (ASPEED_MII_PHYCR_OP_WRITE | \
1185 ASPEED_MII_PHYCR_OP_READ))
1186#define ASPEED_MII_PHYCR_OP_WRITE BIT(26)
1187#define ASPEED_MII_PHYCR_OP_READ BIT(27)
1188#define ASPEED_MII_PHYCR_DATA(x) (x & 0xffff)
1189#define ASPEED_MII_PHYCR_PHY(x) (((x) >> 21) & 0x1f)
1190#define ASPEED_MII_PHYCR_REG(x) (((x) >> 16) & 0x1f)
1191
1192#define ASPEED_MII_PHYDATA_IDLE BIT(16)
1193
1194static void aspeed_mii_transition(AspeedMiiState *s, bool fire)
1195{
1196 if (fire) {
1197 s->phycr |= ASPEED_MII_PHYCR_FIRE;
1198 s->phydata &= ~ASPEED_MII_PHYDATA_IDLE;
1199 } else {
1200 s->phycr &= ~ASPEED_MII_PHYCR_FIRE;
1201 s->phydata |= ASPEED_MII_PHYDATA_IDLE;
1202 }
1203}
1204
1205static void aspeed_mii_do_phy_ctl(AspeedMiiState *s)
1206{
1207 uint8_t reg;
1208 uint16_t data;
1209
1210 if (!(s->phycr & ASPEED_MII_PHYCR_ST_22)) {
1211 aspeed_mii_transition(s, !ASPEED_MII_PHYCR_FIRE);
1212 qemu_log_mask(LOG_UNIMP, "%s: unsupported ST code\n", __func__);
1213 return;
1214 }
1215
1216
1217 if (!(s->phycr & ASPEED_MII_PHYCR_FIRE)) {
1218 return;
1219 }
1220
1221 reg = ASPEED_MII_PHYCR_REG(s->phycr);
1222 data = ASPEED_MII_PHYCR_DATA(s->phycr);
1223
1224 switch (ASPEED_MII_PHYCR_OP(s->phycr)) {
1225 case ASPEED_MII_PHYCR_OP_WRITE:
1226 do_phy_write(s->nic, reg, data);
1227 break;
1228 case ASPEED_MII_PHYCR_OP_READ:
1229 s->phydata = (s->phydata & ~0xffff) | do_phy_read(s->nic, reg);
1230 break;
1231 default:
1232 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid OP code %08x\n",
1233 __func__, s->phycr);
1234 }
1235
1236 aspeed_mii_transition(s, !ASPEED_MII_PHYCR_FIRE);
1237}
1238
1239static uint64_t aspeed_mii_read(void *opaque, hwaddr addr, unsigned size)
1240{
1241 AspeedMiiState *s = ASPEED_MII(opaque);
1242
1243 switch (addr) {
1244 case 0x0:
1245 return s->phycr;
1246 case 0x4:
1247 return s->phydata;
1248 default:
1249 g_assert_not_reached();
1250 }
1251}
1252
1253static void aspeed_mii_write(void *opaque, hwaddr addr,
1254 uint64_t value, unsigned size)
1255{
1256 AspeedMiiState *s = ASPEED_MII(opaque);
1257
1258 switch (addr) {
1259 case 0x0:
1260 s->phycr = value & ~(s->phycr & ASPEED_MII_PHYCR_FIRE);
1261 break;
1262 case 0x4:
1263 s->phydata = value & ~(0xffff | ASPEED_MII_PHYDATA_IDLE);
1264 break;
1265 default:
1266 g_assert_not_reached();
1267 }
1268
1269 aspeed_mii_transition(s, !!(s->phycr & ASPEED_MII_PHYCR_FIRE));
1270 aspeed_mii_do_phy_ctl(s);
1271}
1272
1273static const MemoryRegionOps aspeed_mii_ops = {
1274 .read = aspeed_mii_read,
1275 .write = aspeed_mii_write,
1276 .valid.min_access_size = 4,
1277 .valid.max_access_size = 4,
1278 .endianness = DEVICE_LITTLE_ENDIAN,
1279};
1280
1281static void aspeed_mii_reset(DeviceState *dev)
1282{
1283 AspeedMiiState *s = ASPEED_MII(dev);
1284
1285 s->phycr = 0;
1286 s->phydata = 0;
1287
1288 aspeed_mii_transition(s, !!(s->phycr & ASPEED_MII_PHYCR_FIRE));
1289};
1290
1291static void aspeed_mii_realize(DeviceState *dev, Error **errp)
1292{
1293 AspeedMiiState *s = ASPEED_MII(dev);
1294 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
1295
1296 assert(s->nic);
1297
1298 memory_region_init_io(&s->iomem, OBJECT(dev), &aspeed_mii_ops, s,
1299 TYPE_ASPEED_MII, 0x8);
1300 sysbus_init_mmio(sbd, &s->iomem);
1301}
1302
1303static const VMStateDescription vmstate_aspeed_mii = {
1304 .name = TYPE_ASPEED_MII,
1305 .version_id = 1,
1306 .minimum_version_id = 1,
1307 .fields = (VMStateField[]) {
1308 VMSTATE_UINT32(phycr, FTGMAC100State),
1309 VMSTATE_UINT32(phydata, FTGMAC100State),
1310 VMSTATE_END_OF_LIST()
1311 }
1312};
1313
1314static Property aspeed_mii_properties[] = {
1315 DEFINE_PROP_LINK("nic", AspeedMiiState, nic, TYPE_FTGMAC100,
1316 FTGMAC100State *),
1317 DEFINE_PROP_END_OF_LIST(),
1318};
1319
1320static void aspeed_mii_class_init(ObjectClass *klass, void *data)
1321{
1322 DeviceClass *dc = DEVICE_CLASS(klass);
1323
1324 dc->vmsd = &vmstate_aspeed_mii;
1325 dc->reset = aspeed_mii_reset;
1326 dc->realize = aspeed_mii_realize;
1327 dc->desc = "Aspeed MII controller";
1328 device_class_set_props(dc, aspeed_mii_properties);
1329}
1330
1331static const TypeInfo aspeed_mii_info = {
1332 .name = TYPE_ASPEED_MII,
1333 .parent = TYPE_SYS_BUS_DEVICE,
1334 .instance_size = sizeof(AspeedMiiState),
1335 .class_init = aspeed_mii_class_init,
1336};
1337
1338static void ftgmac100_register_types(void)
1339{
1340 type_register_static(&ftgmac100_info);
1341 type_register_static(&aspeed_mii_info);
1342}
1343
1344type_init(ftgmac100_register_types)
1345
