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Commit | Line | Data |
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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, ...) \ | |
32 | do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0) | |
33 | #define BADF(fmt, ...) \ | |
34 | do { hw_error("lan9118: error: " fmt , ## __VA_ARGS__);} while (0) | |
35 | #else | |
36 | #define DPRINTF(fmt, ...) do {} while(0) | |
37 | #define BADF(fmt, ...) \ | |
38 | do { 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 PB |
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 |
2a424990 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 |
145 | enum tx_state { |
146 | TX_IDLE, | |
147 | TX_B, | |
148 | TX_DATA | |
149 | }; | |
150 | ||
151 | typedef 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; | |
2a424990 PB |
161 | uint8_t data[2048]; |
162 | } LAN9118Packet; | |
163 | ||
b09da0c3 PM |
164 | static 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 | 184 | typedef 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; |
2a424990 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 |
262 | static 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 |
331 | static 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 | ||
354 | static 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 | ||
359 | static 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 |
375 | static 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 |
385 | static 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 | 399 | static void lan9118_set_link(NetClientState *nc) |
2a424990 | 400 | { |
cc1f0f45 | 401 | phy_update_link(qemu_get_nic_opaque(nc)); |
2a424990 PB |
402 | } |
403 | ||
404 | static 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 | ||
414 | static 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 |
474 | static 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. */ | |
485 | static 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 | 522 | static 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 | ||
612 | static 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 | ||
662 | static 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 | ||
692 | static 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 | ||
709 | static 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 | ||
722 | static 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 | ||
802 | static 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 | ||
835 | static 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 | ||
862 | static 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 | ||
921 | static 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 | ||
951 | static 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 |
1007 | static 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 | 1016 | static 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 | 1153 | static 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 | 1180 | static 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 | 1195 | static 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 | 1269 | static 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 | 1297 | static 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 |
1311 | static const MemoryRegionOps lan9118_mem_ops = { |
1312 | .read = lan9118_readl, | |
1313 | .write = lan9118_writel, | |
1314 | .endianness = DEVICE_NATIVE_ENDIAN, | |
2a424990 PB |
1315 | }; |
1316 | ||
1248f8d4 EV |
1317 | static 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 | 1323 | static 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 | 1330 | static 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 |
1361 | static 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 | ||
1367 | static 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 | 1377 | static 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 | 1384 | static 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. */ | |
1391 | void 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 | 1405 | type_init(lan9118_register_types) |